{"id":255,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/steam-whirl\/"},"modified":"2026-05-23T22:54:27","modified_gmt":"2026-05-23T22:54:27","slug":"steam-whirl","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/sk\/glossary\/steam-whirl\/","title":{"rendered":"\u010co je parn\u00fd v\u00edr? Aerodynamick\u00e1 nestabilita v turb\u00ednach"},"content":{"rendered":"<h1>Pochopenie parn\u00e9ho v\u00edru v turb\u00ednov\u00fdch strojoch<\/h1>\n\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/sk\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/sk\/product\/balanset-1\/\" title=\"Prenosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibr\u00e1ci\u00ed Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Kompletn\u00e1 s\u00faprava prenosn\u00e9ho vyva\u017eovacieho zariadenia a analyz\u00e1tora vibr\u00e1ci\u00ed Balanset-1A\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/sk\/product-category\/devices\/\" rel=\"tag\">Zariadenia<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/sk\/product\/balanset-1\/\" title=\"Prenosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibr\u00e1ci\u00ed Balanset-1A\">Prenosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibr\u00e1ci\u00ed Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,975.00<\/span> + DPH (ak sa uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/sk\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/sk\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Prida\u0165 do ko\u0161\u00edka: \u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201c\" rel=\"nofollow\" data-success_message=\"\u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/sk\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/sk\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibr\u00e1ci\u00ed\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Sn\u00edma\u010d vibr\u00e1ci\u00ed Balanset-1A zbl\u00edzka\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/sk\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibr\u00e1ci\u00ed\">Sn\u00edma\u010d vibr\u00e1ci\u00ed<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>90.00<\/span> + DPH (ak sa uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/sk\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/sk\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Prida\u0165 do ko\u0161\u00edka: \u201eVibration sensor\u201c\" rel=\"nofollow\" data-success_message=\"\u201eVibration sensor\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/sk\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/sk\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd tachometer)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Optick\u00fd senzor (laserov\u00fd tachometer)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/sk\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd tachometer)\">Optick\u00fd senzor (laserov\u00fd tachometer)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>124.00<\/span> + DPH (ak sa uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/sk\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/sk\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Prida\u0165 do ko\u0161\u00edka: \u201eOptical Sensor (Laser Tachometer)\u201c\" rel=\"nofollow\" data-success_message=\"\u201eOptical Sensor (Laser Tachometer)\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/sk\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/sk\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"S\u00faprava na vyva\u017eovanie rotora Vibromera: prenosn\u00e9 puzdro, viackan\u00e1lov\u00fd prevodn\u00edk sign\u00e1lu, ru\u010dn\u00fd analyz\u00e1tor, magnetick\u00e1 z\u00e1klad\u0148a, vibra\u010dn\u00e9 senzory a \u0161pir\u00e1lov\u00e9 k\u00e1ble.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/sk\/product-category\/devices\/\" rel=\"tag\">Zariadenia<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/sk\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>6,803.00<\/span> + DPH (ak sa uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/sk\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/sk\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Prida\u0165 do ko\u0161\u00edka: \u201eBalanset-4\u201c\" rel=\"nofollow\" data-success_message=\"\u201eBalanset-4\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/sk\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/sk\/product\/magnet-stand\/\" title=\"Magnetick\u00fd stojan Insize-60-kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Magnetick\u00e1 z\u00e1klad\u0148a.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/sk\/product\/magnet-stand\/\" title=\"Magnetick\u00fd stojan Insize-60-kgf\">Magnetick\u00fd stojan Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>46.00<\/span> + DPH (ak sa uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/sk\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/sk\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Prida\u0165 do ko\u0161\u00edka: \u201eMagnetic Stand Insize-60-kgf\u201c\" rel=\"nofollow\" data-success_message=\"\u201eMagnetic Stand Insize-60-kgf\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/sk\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/sk\/product\/reflective-tape\/\" title=\"Reflexn\u00e1 p\u00e1ska\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Reflexn\u00e1 p\u00e1ska\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/sk\/product\/reflective-tape\/\" title=\"Reflexn\u00e1 p\u00e1ska\">Reflexn\u00e1 p\u00e1ska<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>10.00<\/span> + DPH (ak sa uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/sk\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/sk\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Prida\u0165 do ko\u0161\u00edka: \u201eReflective tape\u201c\" rel=\"nofollow\" data-success_message=\"\u201eReflective tape\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/sk\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/sk\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamick\u00fd vyva\u017eova\u010d &quot;Balanset-1A&quot; OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Obsah s\u00fapravy Balanset-1A s jednotkou rozhrania, sn\u00edma\u010dmi, tachometrom a pr\u00edslu\u0161enstvom\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/sk\/product-category\/devices\/\" rel=\"tag\">Zariadenia<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/sk\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamick\u00fd vyva\u017eova\u010d &quot;Balanset-1A&quot; OEM\">Dynamick\u00fd vyva\u017eova\u010d \"Balanset-1A\" OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + DPH (ak sa uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/sk\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/sk\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"Prida\u0165 do ko\u0161\u00edka: \u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201c\" rel=\"nofollow\" data-success_message=\"\u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<p><strong>Parn\u00fd v\u00edr<\/strong> \u2014 naz\u00fdvan\u00e1 tie\u017e nestabilita aerodynamick\u00e9ho kr\u00ed\u017eov\u00e9ho prepojenia alebo v\u00edrenie tesnenia \u2014 je <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/self-excited-vibration\/\">samobuden\u00e9 vibr\u00e1cie<\/a> ktor\u00e1 vznik\u00e1 v parn\u00fdch a plynov\u00fdch turb\u00ednach, ke\u010f aerodynamick\u00e9 sily vn\u00fatri labyrintov\u00fdch tesnen\u00ed, medzier na koncoch lopatiek alebo in\u00fdch prstencov\u00fdch priechodoch vyvol\u00e1vaj\u00fa destabilizuj\u00facu tangenci\u00e1lnu silu na <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/rotor\/\">rotor<\/a>. Ako <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/oil-whirl\/\">olejov\u00fd v\u00edr<\/a> v pr\u00edpade hydrodynamick\u00fdch lo\u017e\u00edsk ide o formu <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/rotor-instability\/\">nestabilita rotora<\/a> v ktorom sa energia nepretr\u017eite \u010derp\u00e1 z plynul\u00e9ho pr\u00fadu pary alebo plynu a premie\u0148a sa na orbit\u00e1lny pohyb hriade\u013ea. V\u00fdsledkom je vysok\u00e1 amplit\u00fada <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/sub-synchronous\/\">subsynchr\u00f3nny<\/a> <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/vibration\/\">vibr\u00e1cie<\/a> pri frekvencii bl\u00edzkej jednej z prirodzen\u00fdch frekvenci\u00ed rotora <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/natural-frequency\/\">prirodzen\u00e9 frekvencie<\/a> \u2014 a ak sa tento probl\u00e9m nezist\u00ed a r\u00fdchlo neodstr\u00e1ni, m\u00f4\u017ee to vies\u0165 k tot\u00e1lnej poruche stroja.<\/p>\n<h2>1. Fyzik\u00e1lny mechanizmus<\/h2>\n<p>Parov\u00fd v\u00edr je v podstate interakcia medzi tekutinou a kon\u0161trukciou v \u00fazkych medzer\u00e1ch tesnen\u00ed turb\u00edny. Vznik\u00e1 v troch navz\u00e1jom prepojen\u00fdch f\u00e1zach.<\/p>\n<h3>Vzdialenosti tesnen\u00ed v labyrinte<\/h3>\n<ul>\n<li>Para alebo plyn pr\u00fadi \u00fazkymi prstencov\u00fdmi priechodmi medzi rotuj\u00facimi a stacion\u00e1rnymi komponentmi tesnenia<\/li>\n<li>Na tesneniach p\u00f4sob\u00ed ve\u013ek\u00fd tlakov\u00fd rozdiel \u2013 pri ve\u013ek\u00fdch strojoch \u010dasto 50\u2013200 barov.<\/li>\n<li>Radi\u00e1lne v\u00f4\u013ee s\u00fa mal\u00e9, zvy\u010dajne 0,2\u20130,5 mm.<\/li>\n<li>Pri prechode cez zuby tesnenia nadob\u00fada pr\u00fad v\u00edriv\u00fd charakter, teda zlo\u017eku tangenci\u00e1lnej r\u00fdchlosti.<\/li>\n<\/ul>\n<h3>Aerodynamick\u00e9 kr\u00ed\u017eov\u00e9 v\u00e4zby<\/h3>\n<p>Nestabilita vznik\u00e1 v okamihu, ke\u010f sa rotor vych\u00fdli zo svojej stredovej polohy:<\/p>\n<ul>\n<li>Medzera sa st\u00e1va asymetrickou \u2013 na jednej strane je men\u0161ia, na druhej strane v\u00e4\u010d\u0161ia.<\/li>\n<li>Rozlo\u017eenie prietoku a tlaku v okol\u00ed tesnenia sa st\u00e1va nerovnomern\u00fdm.<\/li>\n<li>\u010cist\u00e1 aerodynamick\u00e1 sila dosahuje <em>tangenci\u00e1lne<\/em> zlo\u017eka, ktor\u00e1 p\u00f4sob\u00ed kolmo na posun, a nie proti nemu.<\/li>\n<li>T\u00e1to tangenci\u00e1lna sila p\u00f4sob\u00ed ako destabilizuj\u00faca \u201enegat\u00edvna <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/stiffness\/\">tuhos\u0165<\/a>\u201c, \u010d\u00edm sa rotor pos\u00fava po svojej dr\u00e1he namiesto toho, aby sa vr\u00e1til do stredu.<\/li>\n<\/ul>\n<h3>Samobuden\u00e9 vibr\u00e1cie<\/h3>\n<ul>\n<li>Tangenci\u00e1lna sila poh\u00e1\u0148a rotor dopredu <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/whirl\/\">v\u00edr<\/a> orbitu.<\/li>\n<li>Frekvencia obe\u017enej dr\u00e1hy sa ust\u00e1li v bl\u00edzkosti vlastnej frekvencie, a je teda subsynchr\u00f3nna.<\/li>\n<li>Z pr\u00fadu pary sa neust\u00e1le odober\u00e1 energia na udr\u017eanie pohybu.<\/li>\n<li>Amplit\u00fada narast\u00e1, k\u00fdm ju neobmedz\u00ed dostupn\u00fd priestor \u2013 alebo porucha stroja.<\/li>\n<\/ul>\n<h2>2. Podmienky podporuj\u00face tvorbu parn\u00fdch v\u00edrov<\/h2>\n<p>To, \u010di sa dan\u00fd stroj stane nestabiln\u00fdm, z\u00e1vis\u00ed od rovnov\u00e1hy medzi destabilizuj\u00facimi silami tesnenia a dostupn\u00fdmi <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/damping\/\">tlmenie<\/a>. T\u00fato rovnov\u00e1hu nar\u00fa\u0161aj\u00fa tri skupiny faktorov.<\/p>\n<h3>Geometrick\u00e9 faktory<\/h3>\n<ul>\n<li><strong>Mal\u00e9 tesniace medzery:<\/strong> men\u0161ie medzery vyvol\u00e1vaj\u00fa silnej\u0161ie aerodynamick\u00e9 sily.<\/li>\n<li><strong>Ve\u013ek\u00e9 d\u013a\u017eky tesnen\u00ed:<\/strong> v\u00e4\u010d\u0161\u00ed po\u010det zubov tesnenia alebo dlh\u0161ie \u00faseky tesnenia zvy\u0161uj\u00fa destabiliza\u010dn\u00fa silu.<\/li>\n<li><strong>Vysok\u00e1 r\u00fdchlos\u0165 v\u00edrenia:<\/strong> Pr\u00fadenie vstupuj\u00face do tesnenia s v\u00fdraznou tangenci\u00e1lnou zlo\u017ekou m\u00e1 obzvl\u00e1\u0161\u0165 destabilizuj\u00faci \u00fa\u010dinok.<\/li>\n<li><strong>Ve\u013ek\u00e9 priemery tesnen\u00ed:<\/strong> v\u00e4\u010d\u0161\u00ed polomer zosil\u0148uje moment vyvolan\u00fd aerodynamickou silou.<\/li>\n<\/ul>\n<h3>Prev\u00e1dzkov\u00e9 podmienky<\/h3>\n<ul>\n<li><strong>Ve\u013ek\u00e9 tlakov\u00e9 rozdiely:<\/strong> v\u00e4\u010d\u0161\u00ed tlakov\u00fd sp\u00e1d na tesnen\u00ed zvy\u0161uje silu.<\/li>\n<li><strong>Vysok\u00e1 r\u00fdchlos\u0165 rotora:<\/strong> s r\u00fdchlos\u0165ou rast\u00fa ako odstrediv\u00e9 sily, tak aj r\u00fdchlos\u0165 v\u00edrenia.<\/li>\n<li><strong>N\u00edzke tlmenie lo\u017e\u00edsk:<\/strong> Nedostato\u010dn\u00e9 tlmenie nedok\u00e1\u017ee vyv\u00e1\u017ei\u0165 sily p\u00f4sobiace na tesnenie.<\/li>\n<li><strong>Podmienky pri n\u00edzkom za\u0165a\u017een\u00ed:<\/strong> n\u00edzke za\u0165a\u017eenie lo\u017e\u00edsk zni\u017euje \u00fa\u010dinnos\u0165 tlmenia <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/journal-bearing\/\">klzn\u00e9 lo\u017eisko<\/a> m\u00f4\u017ee poskytn\u00fa\u0165.<\/li>\n<\/ul>\n<h3>Charakteristiky rotora<\/h3>\n<ul>\n<li><strong>Ohybn\u00e9 rotory:<\/strong> a <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/flexible-rotor\/\">flexibiln\u00fd rotor<\/a> prekra\u010duje svoju <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/critical-speed\/\">kritick\u00e9 r\u00fdchlosti<\/a> je n\u00e1chylnej\u0161\u00ed.<\/li>\n<li><strong>Syst\u00e9my s n\u00edzkym tlmen\u00edm:<\/strong> Pri minim\u00e1lnom kon\u0161truk\u010dnom alebo lo\u017eiskovom tlmen\u00ed nie je ni\u010d, \u010do by t\u00fato energiu pohlcovalo.<\/li>\n<li><strong>Vysok\u00fd pomer d\u013a\u017eky k priemeru:<\/strong> \u0160t\u00edhle rotory s\u00fa zo svojej podstaty n\u00e1chylnej\u0161ie na nestabilitu.<\/li>\n<\/ul>\n<h2>3. Diagnostick\u00e9 charakteristiky<\/h2>\n<h3>Vibra\u010dn\u00fd podpis<\/h3>\n<p>V\u00edr pary zanech\u00e1va charakteristick\u00fd vzor, ktor\u00fd <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/vibration-analysis\/\">anal\u00fdza vibr\u00e1ci\u00ed<\/a> m\u00f4\u017ee s istotou identifikova\u0165:<\/p>\n<table border=\"1\" style=\"width:100%; border-collapse:collapse;\">\n<tr>\n<th>Parameter<\/th>\n<th>Charakteristick\u00fd<\/th>\n<\/tr>\n<tr>\n<td>Frekvencia<\/td>\n<td>Subsynchr\u00f3nny, zvy\u010dajne 0,3\u20130,6-n\u00e1sobok prev\u00e1dzkovej r\u00fdchlosti, \u010dasto sa zos\u00fala\u010fuje s vlastnou frekvenciou<\/td>\n<\/tr>\n<tr>\n<td>Amplit\u00fada<\/td>\n<td>Vysok\u00e1 \u2013 \u010dasto 5- a\u017e 20-n\u00e1sobok be\u017en\u00fdch vibr\u00e1ci\u00ed sp\u00f4soben\u00fdch nevyv\u00e1\u017eenos\u0165ou<\/td>\n<\/tr>\n<tr>\n<td>N\u00e1stup<\/td>\n<td>N\u00e1hle, pri prekro\u010den\u00ed prahovej r\u00fdchlosti alebo tlaku<\/td>\n<\/tr>\n<tr>\n<td>Z\u00e1vislos\u0165 od r\u00fdchlosti<\/td>\n<td>Frekvencia sa m\u00f4\u017ee zablokova\u0165 a prestane reagova\u0165 na zmeny r\u00fdchlosti<\/td>\n<\/tr>\n<tr>\n<td>Orbita<\/td>\n<td>Ve\u013ek\u00e9 kruhov\u00e9 alebo eliptick\u00e9 precesn\u00e9 pohyby dopredu<\/td>\n<\/tr>\n<tr>\n<td>Spektrum<\/td>\n<td>Dominantn\u00fd subsynchr\u00f3nny vrchol<\/td>\n<\/tr>\n<\/table>\n<h3>Odli\u0161ovanie od in\u00fdch nestabil\u00edt<\/h3>\n<ul>\n<li><strong>vs. olejov\u00fd v\u00edr \/ \u0161\u013eaha\u010dka:<\/strong> V turb\u00ednach s labyrintov\u00fdmi tesneniami doch\u00e1dza k parn\u00e9mu v\u00edreniu, zatia\u013e \u010do v turb\u00ednach s k\u013azav\u00fdmi lo\u017eiskami doch\u00e1dza k olejov\u00e9mu v\u00edreniu <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/journal-bearing\/\">klzn\u00e9 lo\u017eisk\u00e1<\/a>.<\/li>\n<li><strong>vs. nerovnov\u00e1ha:<\/strong> parn\u00fd v\u00edr je subsynchr\u00f3nny, zatia\u013e \u010do <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/imbalance\/\">nevyv\u00e1\u017eenos\u0165<\/a> je 1\u00d7 <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/synchronous-vibration\/\">synchr\u00f3nne<\/a> reakcia.<\/li>\n<li><strong>vs. trie\u0165:<\/strong> parn\u00fd v\u00edr m\u00f4\u017ee vznikn\u00fa\u0165 bez ak\u00e9hoko\u013evek kontaktu a jeho frekvencia je stabilnej\u0161ia ne\u017e nepravideln\u00e9 vibr\u00e1cie <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/rotor-rub\/\">trenie rotora<\/a>.<\/li>\n<\/ul>\n<h2>4. Met\u00f3dy prevencie a zmier\u0148ovania<\/h2>\n<p>V\u00e4\u010d\u0161ina protiopatren\u00ed sa zameriava na jeden z dvoch cie\u013eov: bu\u010f na zn\u00ed\u017eenie destabilizuj\u00faceho v\u00edrenia priamo pri zdroji, alebo na zv\u00fd\u0161enie tlmenia, aby ho rotor mohol absorbova\u0165. Kon\u0161trukcia tesnenia rie\u0161i prv\u00fd cie\u013e; vylep\u0161enia lo\u017e\u00edsk a prev\u00e1dzkov\u00e9 limity rie\u0161ia druh\u00fd.<\/p>\n<h3>\u00dapravy kon\u0161trukcie tesnenia<\/h3>\n<ul>\n<li><strong>Zariadenia proti v\u00edreniu (brzdy v\u00edrenia):<\/strong> Pevn\u00e9 lopatky alebo deflektory umiestnen\u00e9 pred tesniacim p\u00e1som odoberaj\u00fa z pr\u00fadiaceho vzduchu tangenci\u00e1lnu r\u00fdchlos\u0165, \u010d\u00edm v\u00fdrazne zni\u017euj\u00fa silu prie\u010dneho p\u00f4sobenia. Ide o naj\u00fa\u010dinnej\u0161ie a najbe\u017enej\u0161ie rie\u0161enie.<\/li>\n<li><strong>Tesnenia s vo\u0161tinovou \u0161trukt\u00farou:<\/strong> Nahradenie hladk\u00fdch labyrintov\u00fdch priestorov vo\u0161tinovou \u0161trukt\u00farou vytv\u00e1ra turbulencie, ktor\u00e9 rozpty\u013euj\u00fa v\u00edriv\u00fa energiu a zvy\u0161uj\u00fa \u00fa\u010dinn\u00e9 tlmenie v oblasti tesnenia; t\u00e1to technol\u00f3gia sa \u0161iroko vyu\u017e\u00edva v modern\u00fdch plynov\u00fdch turb\u00ednach.<\/li>\n<li><strong>Zv\u00e4\u010d\u0161en\u00e9 vzdialenosti tesnen\u00ed:<\/strong> V\u00e4\u010d\u0161ie radi\u00e1lne medzery oslabuj\u00fa aerodynamick\u00fa silu, av\u0161ak za cenu v\u00e4\u010d\u0161\u00edch \u00fanikov a zn\u00ed\u017eenej \u00fa\u010dinnosti turb\u00edny, preto ide zvy\u010dajne len o do\u010dasn\u00e9 opatrenie.<\/li>\n<li><strong>Tesnenia tlmi\u010dov:<\/strong> \u0161peci\u00e1lne navrhnut\u00e9 tesnenia \u2013 tesnenia s vreckov\u00fdm tlmi\u010dom a tesnenia s otvormi \u2013 ktor\u00e9 zabezpe\u010duj\u00fa tlmenie a z\u00e1rove\u0148 tesnia, \u010d\u00edm p\u00f4sobia stabiliza\u010dnou silou proti kr\u00ed\u017eov\u00e9mu prepojeniu.<\/li>\n<\/ul>\n<h3>Vylep\u0161enia lo\u017eiskov\u00e9ho syst\u00e9mu<\/h3>\n<ul>\n<li><strong>Zv\u00fd\u0161i\u0165 tlmenie lo\u017e\u00edsk:<\/strong> namontujte lo\u017eisk\u00e1 s nakl\u00e1pac\u00edmi podlo\u017ekami alebo pridajte <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/squeeze-film-damper\/\">tlmi\u010d s olejovou f\u00f3liou<\/a>.<\/li>\n<li><strong>Predp\u00e4tie lo\u017eiska:<\/strong> pou\u017eitie <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/preload\/\">Predbe\u017en\u00e9 za\u0165a\u017eenie<\/a> zvy\u0161uje tak tuhos\u0165, ako aj tlmenie.<\/li>\n<li><strong>Optimalizovan\u00e1 kon\u0161trukcia lo\u017e\u00edsk:<\/strong> v\u00fdber typu a konfigur\u00e1cie lo\u017eiska s oh\u013eadom na maxim\u00e1lnu rezervu stability.<\/li>\n<\/ul>\n<h3>Prev\u00e1dzkov\u00e9 kontroly<\/h3>\n<ul>\n<li><strong>Obmedzenia r\u00fdchlosti:<\/strong> udr\u017eujte prev\u00e1dzkov\u00fa r\u00fdchlos\u0165 pod prahom nestability.<\/li>\n<li><strong>Riadenie za\u0165a\u017eenia:<\/strong> vyhnite sa prev\u00e1dzke s n\u00edzkym za\u0165a\u017een\u00edm, ktor\u00e1 zni\u017euje tlmiace vlastnosti lo\u017e\u00edsk.<\/li>\n<li><strong>Regul\u00e1cia tlaku:<\/strong> zn\u00ed\u017ei\u0165 tlakov\u00e9 rozdiely v tesneniach tam, kde to proces dovo\u013euje.<\/li>\n<li><strong>Nepretr\u017eit\u00e9 monitorovanie:<\/strong> v re\u00e1lnom \u010dase <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/condition-monitoring\/\">monitorovanie stavu<\/a> s vyhraden\u00fdmi subsynchr\u00f3nnymi alarmami.<\/li>\n<\/ul>\n<h2>5. Detekcia a reakcia na mimoriadne situ\u00e1cie<\/h2>\n<h3>V\u010dasn\u00e9 varovn\u00e9 sign\u00e1ly<\/h3>\n<ul>\n<li>Vo vibr\u00e1ci\u00e1ch sa za\u010d\u00ednaj\u00fa objavova\u0165 mal\u00e9 subsynchr\u00f3nne \u0161pi\u010dky <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/spectrum\/\">spektrum<\/a>.<\/li>\n<li>Preru\u0161ovan\u00e9 vysokofrekven\u010dn\u00e9 zlo\u017eky.<\/li>\n<li>Postupn\u00e9 zvy\u0161ovanie celkov\u00e9ho <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/vibration-severity\/\">intenzita vibr\u00e1ci\u00ed<\/a> ke\u010f sa r\u00fdchlos\u0165 bl\u00ed\u017ei k prahovej hodnote.<\/li>\n<li>Zmeny v <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/orbit\/\">obe\u017en\u00e1 dr\u00e1ha<\/a> tvar zachyten\u00fd sn\u00edma\u010dmi pribl\u00ed\u017eenia.<\/li>\n<\/ul>\n<h3>Okam\u017eit\u00e9 opatrenia v pr\u00edpade zistenia v\u00edrenia pary<\/h3>\n<ol>\n<li><strong>Zn\u00ed\u017ete r\u00fdchlos\u0165:<\/strong> okam\u017eite zn\u00ed\u017ei\u0165 r\u00fdchlos\u0165 pod prahov\u00fa hodnotu.<\/li>\n<li><strong>Neodkladajte:<\/strong> Amplit\u00fada sa m\u00f4\u017ee zv\u00fd\u0161i\u0165 z prijate\u013enej na ni\u010div\u00fa za 30 a\u017e 60 sek\u00fand.<\/li>\n<li><strong>N\u00fadzov\u00e9 vypnutie:<\/strong> vypn\u00fa\u0165 stroj, ak nie je mo\u017en\u00e9 alebo nesta\u010d\u00ed zn\u00ed\u017ei\u0165 ot\u00e1\u010dky.<\/li>\n<li><strong>Zaznamenajte udalos\u0165:<\/strong> zaznamena\u0165 po\u010diato\u010dn\u00fa r\u00fdchlos\u0165, frekvenciu, \u0161pi\u010dkov\u00fa amplit\u00fadu a prev\u00e1dzkov\u00e9 podmienky.<\/li>\n<li><strong>Nerestartujte:<\/strong> Stroj nechajte odstaven\u00fd, k\u00fdm sa nezist\u00ed a neodstr\u00e1ni pr\u00ed\u010dina poruchy.<\/li>\n<\/ol>\n<h3>Kde sa hodia po\u013en\u00e9 pr\u00edstroje<\/h3>\n<p>Trvalo in\u0161talovan\u00e9 ochrann\u00e9 syst\u00e9my zvl\u00e1daj\u00fa okam\u017eit\u00e9 vypnutie, av\u0161ak prenosn\u00fd dvojkan\u00e1lov\u00fd analyz\u00e1tor je nenahradite\u013en\u00fd pri sk\u00faman\u00ed nestability po zastaven\u00ed stroja a pri n\u00e1sledn\u00fdch kontrol\u00e1ch pri uveden\u00ed do prev\u00e1dzky. Pr\u00edstroj, ako je napr\u00edklad <a href=\"https:\/\/vibromera.eu\/sk\/produkt\/balanset-1\/\">Balanset-1A<\/a> zaznamen\u00e1va FFT spektrum na potvrdenie sub-synchr\u00f3nneho vrcholu, sleduje jeho amplit\u00fadu po\u010das riaden\u00e9ho n\u00e1behu a umo\u017e\u0148uje technikovi najprv vyl\u00fa\u010di\u0165 1\u00d7 <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/imbalance\/\">nevyv\u00e1\u017eenos\u0165<\/a> probl\u00e9m \u2013 meran\u00edm amplit\u00fady a f\u00e1zy pri prev\u00e1dzkovej r\u00fdchlosti \u2013 sk\u00f4r, ne\u017e vibr\u00e1cie prip\u00ed\u0161eme skuto\u010dnej samovzbudzovanej nestabilite tesnenia. Odl\u00ed\u0161enie be\u017enej nevyv\u00e1\u017eenosti, ktor\u00e1 <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/vyvazovanie-pola\/\">vyva\u017eovanie na mieste<\/a> Rozl\u00ed\u0161enie toho, \u010di ide o skuto\u010dn\u00fd parn\u00fd v\u00edr, \u010do v skuto\u010dnosti nie je, je k\u013e\u00fa\u010dov\u00fdm krokom v\u010dasnej diagnostiky.<\/p>\n<h2>6. Odvetvia, aplik\u00e1cie a s\u00favisiace javy<\/h2>\n<p>Parn\u00e9 v\u00edrenie predstavuje obzvl\u00e1\u0161\u0165 vysok\u00e9 riziko v:<\/p>\n<ul>\n<li><strong>V\u00fdroba energie:<\/strong> ve\u013ek\u00e9 parn\u00e9 turb\u00ednov\u00e9 gener\u00e1tory.<\/li>\n<li><strong>Petroch\u00e9mia:<\/strong> parou poh\u00e1\u0148an\u00e9 kompresory a \u010derpadl\u00e1.<\/li>\n<li><strong>Plynov\u00e9 turb\u00edny:<\/strong> leteck\u00e9 motory a priemyseln\u00e9 plynov\u00e9 turb\u00edny.<\/li>\n<li><strong>Spracovate\u013esk\u00fd priemysel:<\/strong> ak\u00e9ko\u013evek vysokoot\u00e1\u010dkov\u00e9 turbostroje vybaven\u00e9 labyrintov\u00fdmi tesneniami.<\/li>\n<\/ul>\n<p>Patr\u00ed tie\u017e do skupiny \u00fazko s\u00favisiacich nestabiln\u00fdch javov. <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/oil-whirl\/\">Olejov\u00fd v\u00edr<\/a> funguje na rovnakom destabiliza\u010dnom princ\u00edpe, av\u0161ak v mazacom filme lo\u017eiska, a nie v tesnen\u00ed; <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/shaft-whip\/\">\u0161\u013eahanie hriade\u013ea<\/a> vykazuj\u00fa rovnak\u00e9 frekven\u010dn\u00e9 zos\u00faladenie pri vlastnej frekvencii; a v\u0161etky patria do \u0161ir\u0161ej kateg\u00f3rie samovzbudzovan\u00fdch <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/rotor-instability\/\">nestabilita rotora<\/a>. Hoci v\u010faka pokroku v oblasti tesniacej techniky a kon\u0161trukcie lo\u017e\u00edsk sa v\u00fdskyt tohto javu zn\u00ed\u017eil, pochopenie fenom\u00e9nu parn\u00e9ho v\u00edrenia zost\u00e1va nevyhnutn\u00e9 pre ka\u017ed\u00e9ho, kto sa zaober\u00e1 kon\u0161trukciou alebo prev\u00e1dzkou vysokor\u00fdchlostn\u00fdch vysokotlakov\u00fdch turb\u00ednov\u00fdch strojov.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/sk\/glossary\/\">\u2190 Sp\u00e4\u0165 na hlavn\u00fd index<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Z\u00edskajte inform\u00e1cie o parnom v\u00edre, \u010do je samobuden\u00e1 vibra\u010dn\u00e1 nestabilita v parn\u00fdch turb\u00ednach sp\u00f4soben\u00e1 aerodynamick\u00fdmi kr\u00ed\u017eov\u00fdmi v\u00e4zbov\u00fdmi silami v labyrintov\u00fdch tesneniach a v\u00f4\u013eami hrotov lopatiek.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-255","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary\/255","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary\/255\/revisions"}],"predecessor-version":[{"id":101413,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary\/255\/revisions\/101413"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/media?parent=255"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/categories?post=255"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/tags?post=255"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}