{"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\/sl\/glossary\/steam-whirl\/","title":{"rendered":"Kaj je parni vrtinec? Aerodinami\u010dna nestabilnost v turbinah"},"content":{"rendered":"<h1>Razumevanje parnega vrtinca v turbostrojih<\/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\/sl\/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\/sl\/product\/balanset-1\/\" title=\"Prenosni balanser in analizator vibracij 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=\"Prenosni uravnote\u017enik in analizator vibracij Balanset-1A v popolnem kompletu\" 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\/sl\/product-category\/devices\/\" rel=\"tag\">Naprave<\/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\/sl\/product\/balanset-1\/\" title=\"Prenosni balanser in analizator vibracij Balanset-1A\">Prenosni balanser in analizator vibracij 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> + DDV (\u010de je primerno)<\/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=\"\/sl\/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=\"Dodaj v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/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=\"Dodaj v ko\u0161arico: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/vibration-sensor\/\" title=\"Senzor vibracij\">\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=\"Senzor vibracij Balanset-1A od blizu\" 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\/sl\/product-category\/parts\/\" rel=\"tag\">Deli<\/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\/sl\/product\/vibration-sensor\/\" title=\"Senzor vibracij\">Senzor vibracij<\/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> + DDV (\u010de je primerno)<\/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=\"\/sl\/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=\"Dodaj v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/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=\"Dodaj v ko\u0161arico: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Opti\u010dni senzor (laserski tahometer)\">\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=\"Opti\u010dni senzor (laserski tahometer)\" 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\/sl\/product-category\/parts\/\" rel=\"tag\">Deli<\/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\/sl\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Opti\u010dni senzor (laserski tahometer)\">Opti\u010dni senzor (laserski tahometer)<\/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> + DDV (\u010de je primerno)<\/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=\"\/sl\/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=\"Dodaj v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/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=\"Dodaj v ko\u0161arico: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/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=\"Komplet za uravnote\u017eenje rotorjev Vibromera: torba za prena\u0161anje, ve\u010dkanalni pretvornik signala, ro\u010dni analizator, magnetna podlaga, senzorji vibracij in spiralni kabli.\" 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\/sl\/product-category\/devices\/\" rel=\"tag\">Naprave<\/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\/sl\/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> + DDV (\u010de je primerno)<\/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=\"\/sl\/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=\"Dodaj v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/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=\"Dodaj v ko\u0161arico: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/magnet-stand\/\" title=\"Magnetno stojalo 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=\"Magnetna osnova.\" 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\/sl\/product-category\/parts\/\" rel=\"tag\">Deli<\/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\/sl\/product\/magnet-stand\/\" title=\"Magnetno stojalo Insize-60-kgf\">Magnetno stojalo 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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" 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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\/sl\/product-category\/parts\/\" rel=\"tag\">Deli<\/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\/sl\/product\/reflective-tape\/\" title=\"Odsevni trak\">Odsevni trak<\/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> + DDV (\u010de je primerno)<\/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=\"\/sl\/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=\"Dodaj v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/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=\"Dodaj v ko\u0161arico: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinami\u010dni uravnote\u017eevalnik &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=\"Vsebina kompleta Balanset-1A z vmesni\u0161ko enoto, senzorji, tahometrom in dodatno opremo\" 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\/sl\/product-category\/devices\/\" rel=\"tag\">Naprave<\/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\/sl\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinami\u010dni uravnote\u017eevalnik &quot;Balanset-1A&quot; OEM\">Dinami\u010dni uravnote\u017eevalnik \"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> + DDV (\u010de je primerno)<\/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=\"\/sl\/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=\"Dodaj v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/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=\"Dodaj v ko\u0161arico: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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>Parni vrtinec<\/strong> \u2014 znan tudi kot nestabilnost zaradi aerodinami\u010dnega navzkri\u017enega povezovanja ali vrtin\u010denje tesnila \u2014 je <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/self-excited-vibration\/\">samovzburjene vibracije<\/a> ki nastane v parnih in plinskih turbinah, ko aerodinami\u010dne sile znotraj labirintnih tesnil, v razmakih na konicah lopatic ali drugih obro\u010dastih prehodih povzro\u010dajo destabilizirajo\u010do tangencialno silo na <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/rotor\/\">rotor<\/a>. Podobno kot <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/oil-whirl\/\">oljni vrtinec<\/a> pri hidrodinami\u010dnih le\u017eajih gre za obliko <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/rotor-instability\/\">nestabilnost rotorja<\/a> v katerem se energija neprekinjeno \u010drpa iz enakomernega toka pare ali plina in pretvarja v kro\u017eno gibanje gredi. Rezultat je visoka amplituda <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/sub-synchronous\/\">subsinhrono<\/a> <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/vibration\/\">vibracije<\/a> pri frekvenci blizu ene od rotorjevih lastnih frekvenc <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/natural-frequency\/\">lastne frekvence<\/a> \u2014 in \u010de se ne odkrije in hitro odpravi, lahko povzro\u010di katastrofalno okvaro stroja.<\/p>\n<h2>1. Fizi\u010dni mehanizem<\/h2>\n<p>Vrtin\u010denje pare je v bistvu medsebojno delovanje teko\u010dine in strukture v ozkih vmesnih prostorih tesnil turbine. Razvija se v treh medsebojno povezanih fazah.<\/p>\n<h3>Prostori za pe\u010dat Labirint<\/h3>\n<ul>\n<li>Para ali plin te\u010de skozi ozke obro\u010daste prehode med vrte\u010dimi se in stacionarnimi tesnilnimi komponentami<\/li>\n<li>Na tesnila deluje velika razlika v tlaku \u2013 pri velikih strojih pogosto med 50 in 200 bari.<\/li>\n<li>Radialni vmeski so majhni, obi\u010dajno 0,2\u20130,5 mm.<\/li>\n<li>Ko tok prehaja skozi zobe tesnila, se v njem pojavi vrtin\u010denje, tj. tangencialna komponenta hitrosti.<\/li>\n<\/ul>\n<h3>Aerodinami\u010dna navzkri\u017ena povezava<\/h3>\n<p>Nestabilnost nastane v trenutku, ko se rotor premakne iz osrednjega polo\u017eaja:<\/p>\n<ul>\n<li>Razmik postane asimetri\u010den \u2013 na eni strani je manj\u0161i, na nasprotni strani pa ve\u010dji.<\/li>\n<li>Porazdelitev pretoka in tlaka okoli tesnila postane neenakomerna.<\/li>\n<li>Neto aerodinami\u010dna sila se pove\u010da za <em>tangencialna<\/em> komponenta, ki deluje pravokotno na premik, namesto da bi mu nasprotovala.<\/li>\n<li>Ta tangencialna sila deluje kot destabilizirajo\u010da \u00bbnegativna\u00ab <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/stiffness\/\">togost<\/a>\u00ab, pri \u010demer rotor potiska po svoji tirnici, namesto da bi ga potiskal nazaj v sredi\u0161\u010de.<\/li>\n<\/ul>\n<h3>Samovzburjene vibracije<\/h3>\n<ul>\n<li>Tangencialna sila potiska rotor naprej <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/whirl\/\">vrtin\u010denje<\/a> orbita.<\/li>\n<li>Frekvenca orbite se ustalijo v bli\u017eini lastne frekvence, zato je podsinhrona.<\/li>\n<li>Iz toka pare se nenehno pridobiva energija, da se ohrani gibanje.<\/li>\n<li>Amplituda se pove\u010duje, dokler je ne omeji razpolo\u017eljivi prostor \u2013 ali okvara stroja.<\/li>\n<\/ul>\n<h2>2. Pogoji, ki spodbujajo nastanek parnega vrtinca<\/h2>\n<p>Ali bo dolo\u010den stroj postal nestabilen, je odvisno od ravnovesja med destabilizirajo\u010dimi silami tesnila in razpolo\u017eljivimi <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/damping\/\">du\u0161enje<\/a>. Tri skupine dejavnikov vplivajo na to ravnovesje.<\/p>\n<h3>Geometrijski dejavniki<\/h3>\n<ul>\n<li><strong>Majhni tesnilni razmiki:<\/strong> manj\u0161i razmiki povzro\u010dajo mo\u010dnej\u0161e aerodinami\u010dne sile.<\/li>\n<li><strong>Velike dol\u017eine tesnil:<\/strong> Ve\u010d zob tesnila ali dalj\u0161i odseki tesnila pove\u010dajo destabilizacijsko silo.<\/li>\n<li><strong>Visoka hitrost vrtin\u010denja:<\/strong> tok, ki vstopa v tesnilo z velikim tangencialnim dele\u017eem, je \u0161e posebej destabilizirajo\u010d.<\/li>\n<li><strong>Veliki premeri tesnil:<\/strong> ve\u010dji polmer pove\u010da moment, ki ga ustvarja aerodinami\u010dna sila.<\/li>\n<\/ul>\n<h3>Delovni pogoji<\/h3>\n<ul>\n<li><strong>Velike razlike v tlaku:<\/strong> Ve\u010dji padec tlaka prek tesnila pove\u010da silo.<\/li>\n<li><strong>Visoka hitrost rotorja:<\/strong> tako centrifugalni u\u010dinki kot tudi hitrost vrtin\u010denja nara\u0161\u010data s hitrostjo.<\/li>\n<li><strong>Slabo bla\u017eenje le\u017eaja:<\/strong> nezadostno bla\u017eenje ne more nevtralizirati sil tesnila.<\/li>\n<li><strong>Pogoji z majhno obremenitvijo:<\/strong> manj\u0161e obremenitve le\u017eajev zmanj\u0161ujejo dejansko du\u0161enje <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/journal-bearing\/\">drsni le\u017eaj<\/a> lahko zagotovi.<\/li>\n<\/ul>\n<h3>Zna\u010dilnosti rotorja<\/h3>\n<ul>\n<li><strong>Prilagodljivi rotorji:<\/strong> a <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/flexible-rotor\/\">fleksibilen rotor<\/a> deluje nad svojo <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/critical-speed\/\">kriti\u010dne hitrosti<\/a> je bolj dovzeten.<\/li>\n<li><strong>Sistemi z majhnim du\u0161enjem:<\/strong> zaradi minimalnega strukturnega ali nosilnega du\u0161enja ni ni\u010desar, kar bi lahko absorbiralo energijo.<\/li>\n<li><strong>Visoko razmerje med dol\u017eino in premerom:<\/strong> tanke rotorje so \u017ee po naravi bolj nagnjene k nestabilnosti.<\/li>\n<\/ul>\n<h2>3. Diagnosti\u010dne zna\u010dilnosti<\/h2>\n<h3>Vibracijski podpis<\/h3>\n<p>Vrtinec pare pusti zna\u010dilen vzorec, ki <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/vibration-analysis\/\">analiza vibracij<\/a> se lahko z gotovostjo poistovetijo:<\/p>\n<table border=\"1\" style=\"width:100%; border-collapse:collapse;\">\n<tr>\n<th>Parameter<\/th>\n<th>Zna\u010dilnost<\/th>\n<\/tr>\n<tr>\n<td>Frekvenca<\/td>\n<td>Podsinhrono, obi\u010dajno 0,3\u20130,6-kratna hitrost teka, pogosto se uskladi z lastno frekvenco<\/td>\n<\/tr>\n<tr>\n<td>Amplituda<\/td>\n<td>Visoka \u2013 pogosto 5- do 20-krat ve\u010dja od obi\u010dajnih vibracij zaradi neuravnote\u017eenosti<\/td>\n<\/tr>\n<tr>\n<td>Za\u010detek<\/td>\n<td>Nenadoma, pri preseganju mejne hitrosti ali tlaka<\/td>\n<\/tr>\n<tr>\n<td>Odvisnost od hitrosti<\/td>\n<td>Frekvenca se lahko zaklene in ne sledi ve\u010d spremembam hitrosti<\/td>\n<\/tr>\n<tr>\n<td>Orbita<\/td>\n<td>Velika kro\u017ena ali elipti\u010dna orbita, direktna precesija<\/td>\n<\/tr>\n<tr>\n<td>Spekter<\/td>\n<td>Dominantni subsinhroni vrh<\/td>\n<\/tr>\n<\/table>\n<h3>Razlikovanje od drugih nestabilnosti<\/h3>\n<ul>\n<li><strong>v primerjavi z oljnim vrtin\u010dkom \/ bi\u010dem:<\/strong> V turbinih z labirintnimi tesnili pride do parnega vrtinca, medtem ko v turbinih z navadnimi tesnili pride do oljnega vrtinca <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/journal-bearing\/\">drsni le\u017eaji<\/a>.<\/li>\n<li><strong>proti neuravnote\u017eenosti:<\/strong> parni vrtinec je podsinkronni, medtem ko <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/imbalance\/\">neuravnote\u017eenost<\/a> je 1\u00d7 <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/synchronous-vibration\/\">sinhroni<\/a> odziv.<\/li>\n<li><strong>proti drgnjenju:<\/strong> parni vrtinec se lahko pojavi brez kakr\u0161nega koli stika, njegova frekvenca pa je bolj stabilna kot neredno nihanje <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/rotor-rub\/\">drgnjenje rotorja<\/a>.<\/li>\n<\/ul>\n<h2>4. Metode prepre\u010devanja in ubla\u017eitve<\/h2>\n<p>Ve\u010dina protiukrepov je usmerjena v enega od dveh ciljev: zmanj\u0161anje destabilizirajo\u010dega vrtin\u010denja pri viru ali dodajanje du\u0161enja, da ga rotor lahko absorbira. Konstrukcija tesnila re\u0161uje prvi cilj; izbolj\u0161ave le\u017eajev in omejitve delovanja pa re\u0161ujejo drugega.<\/p>\n<h3>Spremembe zasnove tesnila<\/h3>\n<ul>\n<li><strong>Naprave proti vrtin\u010denju (zavore proti vrtin\u010denju):<\/strong> nepremi\u010dne lopatice ali pregrade, name\u0161\u010dene pred tesnilnim trakom, odvzamejo tangencialno hitrost prihajajo\u010demu toku, s \u010dimer se mo\u010dno zmanj\u0161a sila pre\u010dnega povezovanja. To je naju\u010dinkovitej\u0161a in najpogostej\u0161a re\u0161itev.<\/li>\n<li><strong>Tesnila v obliki satja:<\/strong> Zamenjava gladkih labirintnih kanalov s satasto strukturo povzro\u010da turbulenco, ki razpr\u0161i energijo vrtin\u010denja in pove\u010da u\u010dinkovito du\u0161enje v obmo\u010dju tesnila; to se pogosto uporablja v sodobnih plinskih turbinah.<\/li>\n<li><strong>Ve\u010dji razmaki med tesnili:<\/strong> Ve\u010dji radialni vmeski zmanj\u0161ujejo aerodinami\u010dno silo, vendar na ra\u010dun ve\u010djega uhajanja in zmanj\u0161ane u\u010dinkovitosti turbine, zato gre obi\u010dajno le za za\u010dasni ukrep.<\/li>\n<li><strong>Du\u0161ilna tesnila:<\/strong> posebej zasnovana tesnila \u2013 tesnila z \u017eepastim bla\u017eilnikom in tesnila z vzorcem lukenj \u2013, ki zagotavljajo bla\u017eenje in hkrati tesnjenje ter s tem dodajajo stabilizacijsko silo, ki prepre\u010duje navzkri\u017eno povezovanje.<\/li>\n<\/ul>\n<h3>Izbolj\u0161ave le\u017eajnega sistema<\/h3>\n<ul>\n<li><strong>Pove\u010dajte du\u0161enje le\u017eaja:<\/strong> namestite le\u017eaje z nagibno plo\u0161\u010dico ali dodajte <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/squeeze-film-damper\/\">du\u0161ilec stisljivega filma<\/a>.<\/li>\n<li><strong>Prednapetost le\u017eaja:<\/strong> z uporabo <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/preload\/\">prednapetost<\/a> pove\u010da tako efektivno togost kot tudi du\u0161enje.<\/li>\n<li><strong>Optimizirana zasnova le\u017eaja:<\/strong> izbira tipa in konfiguracije le\u017eaja za najve\u010djo varnostno rezervo.<\/li>\n<\/ul>\n<h3>Operativni nadzor<\/h3>\n<ul>\n<li><strong>Omejitve hitrosti:<\/strong> hitrost delovanja ohranjajte pod pragom nestabilnosti.<\/li>\n<li><strong>Upravljanje obremenitve:<\/strong> izogibajte se vo\u017enji z majhno obremenitvijo, ki zmanj\u0161a bla\u017eilno delovanje le\u017eajev.<\/li>\n<li><strong>Nadzor tlaka:<\/strong> zmanj\u0161ajte razlike v tlaku tesnil, kjer to dopu\u0161\u010da proces.<\/li>\n<li><strong>Neprekinjeno spremljanje:<\/strong> v realnem \u010dasu <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/condition-monitoring\/\">spremljanje stanja<\/a> z namenskimi podsinkronnimi alarmi.<\/li>\n<\/ul>\n<h2>5. Odkrivanje in ukrepanje v nujnih primerih<\/h2>\n<h3>Zgodnji opozorilni znaki<\/h3>\n<ul>\n<li>V vibracijah se za\u010denjajo pojavljati majhni podsinkronni vrhovi <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/spectrum\/\">spekter<\/a>.<\/li>\n<li>Prekinjajo\u010de se visokofrekven\u010dne komponente.<\/li>\n<li>Postopno pove\u010danje skupnega <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/vibration-severity\/\">jakost vibracij<\/a> ko se hitrost pribli\u017euje mejni vrednosti.<\/li>\n<li>Spremembe v <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/orbit\/\">orbita<\/a> oblika, ki jo zaznavajo senzorji bli\u017eine.<\/li>\n<\/ul>\n<h3>Takoj\u0161nji ukrepi ob zaznavi nastanka parnega vrtinca<\/h3>\n<ol>\n<li><strong>Zmanj\u0161anje hitrosti:<\/strong> takoj zmanj\u0161ajte hitrost pod mejno vrednost.<\/li>\n<li><strong>Ne odla\u0161ajte:<\/strong> Amplituda se lahko v 30\u201360 sekundah pove\u010da s sprejemljive na uni\u010dujo\u010de vrednosti.<\/li>\n<li><strong>Nujno izklop:<\/strong> izklopite stroj, \u010de zmanj\u0161anje hitrosti ni zadostno ali ni mogo\u010de.<\/li>\n<li><strong>Zabele\u017eite dogodek:<\/strong> zapi\u0161ite za\u010detno hitrost, frekvenco, najve\u010djo amplitudo in pogoje delovanja.<\/li>\n<li><strong>Ne ponovno zaganjaj:<\/strong> stroja ne smete ponovno zagnati, dokler se ne ugotovi in odpravi vzrok napake.<\/li>\n<\/ol>\n<h3>Kje se uporabljajo merilni instrumenti<\/h3>\n<p>Stalno vgrajeni za\u0161\u010ditni sistemi poskrbijo za takoj\u0161njo izklopitev, vendar je prenosni dvo-kanalni analizator neprecenljiv pri preiskovanju nestabilnosti po zaustavitvi stroja ter pri naknadnih pregledih ob zagonu. Tak\u0161en instrument, kot je <a href=\"https:\/\/vibromera.eu\/sl\/izdelek\/balanset-1\/\">Balanset-1A<\/a> zazna FFT-spekter za potrditev podsinkronnega vrha, spremlja njegovo amplitudo med nadzorovanim pospe\u0161evanjem in in\u017eenirju omogo\u010di, da najprej izklju\u010di 1\u00d7 <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/imbalance\/\">neuravnote\u017eenost<\/a> problem \u2013 z merjenjem amplitude in faze pri delovni hitrosti \u2013, preden vibracije pripi\u0161emo dejanski samovzbujeni nestabilnosti tesnila. Lo\u010devanje obi\u010dajnega neuravnote\u017eenja, ki <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/izravnava-polja\/\">uravnote\u017eenje na terenu<\/a> razlikovanje med boleznijo, ki jo je mogo\u010de pozdraviti, in tisto, ki je ne, kar je klju\u010dni korak v zgodnji diagnostiki.<\/p>\n<h2>6. Panoge, uporabe in povezani pojavi<\/h2>\n<p>Vrtinec pare je \u0161e posebej zaskrbljujo\u010d pri:<\/p>\n<ul>\n<li><strong>Proizvodnja elektri\u010dne energije:<\/strong> veliki parni turbinski generatorji.<\/li>\n<li><strong>Petrokemija:<\/strong> parni kompresorji in \u010drpalke.<\/li>\n<li><strong>Plinske turbine:<\/strong> letalske motorje in industrijske plinske turbine.<\/li>\n<li><strong>Predelovalna industrija:<\/strong> vsak visokohitrostni turbinski stroj, opremljen z labirintnimi tesnili.<\/li>\n<\/ul>\n<p>Poleg tega spada v skupino tesno povezanih nestabilnosti. <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/oil-whirl\/\">Oljni vrtinec<\/a> deluje na podlagi istega destabilizacijskega mehanizma, vendar v oljnem filmu le\u017eaja in ne v tesnilu; <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/shaft-whip\/\">bi\u010d gredi<\/a> ka\u017eejo enako frekven\u010dno zaklenitev pri lastni frekvenci; in vsi spadajo v \u0161ir\u0161o kategorijo samovzbujalnih <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/rotor-instability\/\">nestabilnost rotorja<\/a>. \u010ceprav je zaradi napredka na podro\u010dju tehnologije tesnil in zasnove le\u017eajev pogostost pojavljanja tega pojava upadla, ostaja razumevanje parnega vrtinca klju\u010dnega pomena za vsakogar, ki se ukvarja z na\u010drtovanjem ali upravljanjem visokohitrostnih visokotla\u010dnih turbinskih strojev.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/sl\/glossary\/\">\u2190 Nazaj na glavno kazalo<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Spoznajte parni vrtinec, samovzbudljivo vibracijsko nestabilnost v parnih turbinah, ki jo povzro\u010dajo aerodinami\u010dne sile navzkri\u017ene sklopitve v labirintnih tesnilih in razmikih konic lopatic.<\/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\/sl\/wp-json\/wp\/v2\/glossary\/255","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/glossary\/255\/revisions"}],"predecessor-version":[{"id":101413,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/glossary\/255\/revisions\/101413"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/media?parent=255"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/categories?post=255"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/tags?post=255"}],"curies":[{"name":"delovni list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}