{"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\/ro\/glossary\/steam-whirl\/","title":{"rendered":"Ce este v\u00e2rtejul de abur? Instabilitatea aerodinamic\u0103 \u00een turbine"},"content":{"rendered":"<h1>\u00cen\u021belegerea v\u00e2rtejului de abur \u00een turboma\u0219ini<\/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\/ro\/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\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii 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=\"Balanset-1A kit complet \u2014 echilibrator portabil \u0219i analizor de vibra\u021bii\" 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\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/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\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">Echilibrator portabil \u0219i analizor de vibra\u021bii 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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Portable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">\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=\"Prim-plan senzor de vibra\u021bii Balanset-1A\" 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">Senzor de vibra\u021bii<\/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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Vibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201eVibration sensor\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">\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=\"Senzor optic (tahometru cu laser)\" 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">Senzor optic (tahometru cu laser)<\/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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Optical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201eOptical Sensor (Laser Tachometer)\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/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=\"Kit de echilibrare a rotorului Vibromera: geant\u0103 de transport, condi\u021bioner de semnal multicanal, analizor portabil, baz\u0103 magnetic\u0103, senzori de vibra\u021bii \u0219i cabluri spiralate.\" 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\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/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\/ro\/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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Balanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201eBalanset-4\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic 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=\"Baza magnetic\u0103.\" 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic Insize-60-kgf\">Stand magnetic 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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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 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\/>\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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">Band\u0103 reflectorizant\u0103<\/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> + TVA (dac\u0103 este cazul)<\/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\" 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ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &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=\"Con\u021binutul kitului Balanset-1A cu unitate de interfa\u021b\u0103, senzori, tahometru \u0219i accesorii\" 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\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/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\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; OEM\">Echilibrator dinamic \"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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Dynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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>V\u00e2rtej de abur<\/strong> \u2014 numit\u0103 \u0219i instabilitate prin cuplaj aerodinamic \u00eencruci\u0219at sau v\u00e2rtej de etan\u0219are \u2014 este o <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/self-excited-vibration\/\">vibra\u021bie autoexcitat\u0103<\/a> care apare \u00een turbinele cu abur \u0219i cu gaz atunci c\u00e2nd for\u021bele aerodinamice din interiorul etan\u0219\u0103rilor labirint, al jocurilor de la v\u00e2rful paletelor sau al altor pasaje inelare genereaz\u0103 o for\u021b\u0103 tangen\u021bial\u0103 destabilizatoare asupra <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/rotor\/\">rotor<\/a>. Asemenea <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/oil-whirl\/\">v\u00e2rtej de ulei<\/a> \u00een lag\u0103rele hidrodinamice, este o form\u0103 de <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/rotor-instability\/\">instabilitatea rotorului<\/a> \u00een care energia este extras\u0103 continuu din curgerea constant\u0103 a aburului sau a gazului \u0219i transformat\u0103 \u00een mi\u0219care orbital\u0103 a arborelui. Rezultatul este o <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/sub-synchronous\/\">subsincron<\/a> <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration\/\">vibra\u021bii<\/a> la o frecven\u021b\u0103 apropiat\u0103 de una dintre frecven\u021bele proprii ale rotorului&#8217; <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/natural-frequency\/\">frecven\u021be naturale<\/a> \u2014 iar, dac\u0103 nu este detectat \u0219i corectat rapid, poate conduce o ma\u0219in\u0103 c\u0103tre o defec\u021biune catastrofal\u0103.<\/p>\n<h2>1. Mecanismul fizic<\/h2>\n<p>V\u00e2rtejul de abur este, \u00een esen\u021b\u0103, o interac\u021biune fluid-structur\u0103 \u00een jocurile \u00eenguste ale etan\u0219\u0103rilor de turbin\u0103. El se dezvolt\u0103 \u00een trei etape interconectate.<\/p>\n<h3>Jocuri la etan\u0219\u0103rile labirint<\/h3>\n<ul>\n<li>Aburul sau gazul curge prin pasaje inelare \u00eenguste dintre componentele de etan\u0219are rotative \u0219i sta\u021bionare<\/li>\n<li>O diferen\u021b\u0103 mare de presiune ac\u021bioneaz\u0103 asupra etan\u0219\u0103rilor \u2014 adesea 50\u2013200 bar la ma\u0219inile mari.<\/li>\n<li>Jocurile radiale sunt str\u00e2nse, de regul\u0103 0,2\u20130,5 mm.<\/li>\n<li>Curgerea cap\u0103t\u0103 un v\u00e2rtej, o component\u0103 de vitez\u0103 tangen\u021bial\u0103, pe m\u0103sur\u0103 ce trece prin din\u021bii etan\u0219\u0103rii.<\/li>\n<\/ul>\n<h3>Cuplaj aerodinamic \u00eencruci\u0219at<\/h3>\n<p>Instabilitatea ia na\u0219tere \u00een momentul \u00een care rotorul este deplasat din pozi\u021bia sa centrat\u0103:<\/p>\n<ul>\n<li>Jocul devine asimetric \u2014 mai mic pe o parte, mai mare pe partea opus\u0103.<\/li>\n<li>Distribu\u021bia curgerii \u0219i a presiunii \u00een jurul etan\u0219\u0103rii devine neuniform\u0103.<\/li>\n<li>For\u021ba aerodinamic\u0103 net\u0103 cap\u0103t\u0103 o <em>tangential<\/em> component\u0103, care ac\u021bioneaz\u0103 perpendicular pe deplasare, \u00een loc s\u0103 i se opun\u0103.<\/li>\n<li>Acea for\u021b\u0103 tangen\u021bial\u0103 se comport\u0103 ca o &#8220;rigiditate negativ\u0103&#8221; destabilizatoare <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/stiffness\/\">rigiditate<\/a>&#8220;, \u00eemping\u00e2nd rotorul de-a lungul orbitei sale \u00een loc s\u0103-l readuc\u0103 \u00een centru.<\/li>\n<\/ul>\n<h3>Vibra\u021bie autoexcitat\u0103<\/h3>\n<ul>\n<li>For\u021ba tangen\u021bial\u0103 \u00eempinge rotorul \u00eentr-o mi\u0219care de precesie direct\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/whirl\/\">v\u00e2rtej<\/a> orbit.<\/li>\n<li>Frecven\u021ba orbitei se stabilizeaz\u0103 \u00een apropierea unei frecven\u021be proprii, de aici caracterul sub-sincron.<\/li>\n<li>Energia este extras\u0103 continuu din fluxul de abur pentru a sus\u021bine mi\u0219carea.<\/li>\n<li>Amplitudinea cre\u0219te p\u00e2n\u0103 c\u00e2nd este limitat\u0103 de jocul disponibil \u2014 sau de defectarea ma\u0219inii.<\/li>\n<\/ul>\n<h2>2. Condi\u021bii care favorizeaz\u0103 efectul de whirl al aburului<\/h2>\n<p>Dac\u0103 o anumit\u0103 ma\u0219in\u0103 devine instabil\u0103 depinde de echilibrul dintre for\u021bele destabilizatoare din etan\u0219\u0103ri \u0219i valoarea disponibil\u0103 a <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/damping\/\">amortizare<\/a>. Trei grupuri de factori \u00eenclin\u0103 acest echilibru.<\/p>\n<h3>Factori geometrici<\/h3>\n<ul>\n<li><strong>Jocuri reduse la etan\u0219\u0103ri:<\/strong> jocurile mai mici genereaz\u0103 for\u021be aerodinamice mai puternice.<\/li>\n<li><strong>Lungimi mari ale etan\u0219\u0103rilor:<\/strong> mai mul\u021bi din\u021bi de etan\u0219are sau sec\u021biuni de etan\u0219are mai lungi m\u0103resc for\u021ba destabilizatoare.<\/li>\n<li><strong>Viteze mari de v\u00e2rtej:<\/strong> fluxul care intr\u0103 \u00een etan\u0219are cu o component\u0103 tangen\u021bial\u0103 mare este deosebit de destabilizator.<\/li>\n<li><strong>Diametre mari ale etan\u0219\u0103rilor:<\/strong> un raz\u0103 mai mare amplific\u0103 momentul generat de for\u021ba aerodinamic\u0103.<\/li>\n<\/ul>\n<h3>Condi\u021bii de func\u021bionare<\/h3>\n<ul>\n<li><strong>Diferen\u021be mari de presiune:<\/strong> o c\u0103dere de presiune mai mare \u00een etan\u0219are cre\u0219te for\u021ba.<\/li>\n<li><strong>Tura\u021bie ridicat\u0103 a rotorului:<\/strong> at\u00e2t efectele centrifuge, c\u00e2t \u0219i viteza de v\u00e2rtej cresc odat\u0103 cu tura\u021bia.<\/li>\n<li><strong>Amortizare sc\u0103zut\u0103 a lag\u0103relor:<\/strong> o amortizare insuficient\u0103 nu poate contracara for\u021bele din etan\u0219\u0103ri.<\/li>\n<li><strong>Condi\u021bii de sarcin\u0103 redus\u0103:<\/strong> sarcinile reduse pe lag\u0103re diminueaz\u0103 amortizarea efectiv\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/journal-bearing\/\">lag\u0103r cu alunecare<\/a> can provide.<\/li>\n<\/ul>\n<h3>Caracteristicile rotorului<\/h3>\n<ul>\n<li><strong>Rotoare flexibile:<\/strong> o <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/flexible-rotor\/\">rotor flexibil<\/a> func\u021bion\u00e2nd deasupra <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/critical-speed\/\">viteze critice<\/a> este mai susceptibil.<\/li>\n<li><strong>Sisteme cu amortizare redus\u0103:<\/strong> amortizarea structural\u0103 sau a lag\u0103relor minim\u0103 nu las\u0103 nimic care s\u0103 absoarb\u0103 energia.<\/li>\n<li><strong>Raport lungime-diametru ridicat:<\/strong> rotoarele zvelte sunt \u00een mod inerent mai predispuse la instabilitate.<\/li>\n<\/ul>\n<h2>3. Caracteristici de diagnosticare<\/h2>\n<h3>Semn\u0103tura vibra\u021biilor<\/h3>\n<p>V\u00e2rtejul de abur las\u0103 un tipar distinctiv pe care <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration-analysis\/\">analiza vibra\u021biilor<\/a> \u00eel poate identifica cu certitudine:<\/p>\n<table border=\"1\" style=\"width:100%; border-collapse:collapse;\">\n<tr>\n<th>Parametru<\/th>\n<th>Caracteristic\u0103<\/th>\n<\/tr>\n<tr>\n<td>Frecven\u021b\u0103<\/td>\n<td>Sub-sincron, de obicei 0,3\u20130,6\u00d7 viteza de func\u021bionare, adesea bloc\u00e2ndu-se pe o frecven\u021b\u0103 natural\u0103<\/td>\n<\/tr>\n<tr>\n<td>Amplitudine<\/td>\n<td>Ridicat\u0103 \u2014 adesea de 5\u201320 de ori mai mare dec\u00e2t vibra\u021bia normal\u0103 cauzat\u0103 de dezechilibru<\/td>\n<\/tr>\n<tr>\n<td>Debut<\/td>\n<td>Brusc, peste o vitez\u0103 sau presiune prag<\/td>\n<\/tr>\n<tr>\n<td>Dependen\u021ba de tura\u021bie<\/td>\n<td>Frecven\u021ba se poate bloca \u0219i poate refuza s\u0103 urm\u0103reasc\u0103 modific\u0103rile de tura\u021bie<\/td>\n<\/tr>\n<tr>\n<td>Orbit\u0103<\/td>\n<td>Precesie circular\u0103 sau eliptic\u0103 mare, \u00eenainte<\/td>\n<\/tr>\n<tr>\n<td>Spectru<\/td>\n<td>V\u00e2rf subsincron dominant<\/td>\n<\/tr>\n<\/table>\n<h3>Diferen\u021bierea de alte instabilit\u0103\u021bi<\/h3>\n<ul>\n<li><strong>vs. v\u00e2rtej de ulei \/ biciuire de ulei:<\/strong> v\u00e2rtejul de abur (steam whirl) apare la turbinele cu etan\u0219\u0103ri labirint, \u00een timp ce v\u00e2rtejul de ulei (oil whirl) apare la lag\u0103rele lise <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/journal-bearing\/\">lagare radiale cu alunecare<\/a>.<\/li>\n<li><strong>vs. unbalance:<\/strong> v\u00e2rtejul de abur este sub-sincron, \u00een timp ce <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/imbalance\/\">dezechilibru<\/a> is a 1\u00d7 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/synchronous-vibration\/\">synchronous<\/a> r\u0103spuns.<\/li>\n<li><strong>vs. rub:<\/strong> v\u00e2rtejul de abur poate ap\u0103rea f\u0103r\u0103 niciun contact, iar frecven\u021ba sa este mai stabil\u0103 dec\u00e2t vibra\u021bia neregulat\u0103 a unui <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/rotor-rub\/\">frecare rotor<\/a>.<\/li>\n<\/ul>\n<h2>4. Metode de prevenire \u0219i atenuare<\/h2>\n<p>Majoritatea contram\u0103surilor vizeaz\u0103 una dintre dou\u0103 \u021binte: reducerea v\u00e2rtejului destabilizator la surs\u0103 sau ad\u0103ugarea de amortizare pentru ca rotorul s\u0103 \u00eel poat\u0103 absorbi. Proiectarea etan\u0219\u0103rilor abordeaz\u0103 prima \u021bint\u0103; \u00eembun\u0103t\u0103\u021birile lag\u0103relor \u0219i limitele de func\u021bionare o abordeaz\u0103 pe a doua.<\/p>\n<h3>Modific\u0103ri ale designului etan\u0219\u0103rii<\/h3>\n<ul>\n<li><strong>Dispozitive anti-v\u00e2rtej (fr\u00e2ne de v\u00e2rtej):<\/strong> paletele sta\u021bionare sau deflectoarele amplasate \u00een amonte de etan\u0219are elimin\u0103 viteza tangen\u021bial\u0103 din fluxul de intrare, reduc\u00e2nd puternic for\u021ba de cuplaj \u00eencruci\u0219at. Aceasta este solu\u021bia cea mai eficient\u0103 \u0219i cea mai r\u0103sp\u00e2ndit\u0103.<\/li>\n<li><strong>Etan\u0219\u0103ri tip fagure:<\/strong> \u00eenlocuirea suprafe\u021belor netede ale labirintului cu o structur\u0103 fagure genereaz\u0103 turbulen\u021b\u0103 care disip\u0103 energia v\u00e2rtejului \u0219i cre\u0219te amortizarea efectiv\u0103 \u00een zona etan\u0219\u0103rii; utilizat\u0103 pe scar\u0103 larg\u0103 la turbinele moderne cu gaz.<\/li>\n<li><strong>Jocuri m\u0103rite ale etan\u0219\u0103rilor:<\/strong> jocurile radiale mai mari sl\u0103besc for\u021ba aerodinamic\u0103, \u00eens\u0103 cu pre\u021bul unor scurgeri mai mari \u0219i al reducerii randamentului turbinei, astfel \u00eenc\u00e2t aceasta este de obicei doar o m\u0103sur\u0103 temporar\u0103.<\/li>\n<li><strong>Damper seals:<\/strong> etan\u0219\u0103ri proiectate special \u2014 etan\u0219\u0103ri cu amortizoare \u00een buzunare (pocket damper seals) \u0219i etan\u0219\u0103ri cu model de orificii (hole-pattern seals) \u2014 care asigur\u0103 amortizare \u00een timp ce etan\u0219eaz\u0103, ad\u0103ug\u00e2nd o for\u021b\u0103 stabilizatoare care se opune cuplajului \u00eencruci\u0219at.<\/li>\n<\/ul>\n<h3>\u00cembun\u0103t\u0103\u021biri ale sistemului de rulmen\u021bi<\/h3>\n<ul>\n<li><strong>Cre\u0219terea amortiz\u0103rii lag\u0103relor:<\/strong> monta\u021bi lag\u0103re cu patine basculante sau ad\u0103uga\u021bi un <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/squeeze-film-damper\/\">amortizor cu pelicula de presare<\/a>.<\/li>\n<li><strong>Pre\u00eenc\u0103rcarea rulmentului:<\/strong> applying <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/preload\/\">pre\u00eenc\u0103rcare<\/a> cre\u0219te at\u00e2t rigiditatea efectiv\u0103, c\u00e2t \u0219i amortizarea.<\/li>\n<li><strong>Proiectare optimizat\u0103 a rulmentului:<\/strong> selectarea tipului \u0219i configura\u021biei lag\u0103rului pentru o marj\u0103 de stabilitate maxim\u0103.<\/li>\n<\/ul>\n<h3>Controale opera\u021bionale<\/h3>\n<ul>\n<li><strong>Limit\u0103ri de vitez\u0103:<\/strong> men\u021bine\u021bi tura\u021bia de func\u021bionare sub pragul de instabilitate.<\/li>\n<li><strong>Gestionarea sarcinii:<\/strong> evita\u021bi func\u021bionarea cu sarcin\u0103 redus\u0103, care lipse\u0219te lag\u0103rele de amortizare.<\/li>\n<li><strong>Controlul presiunii:<\/strong> reduce\u021bi diferen\u021bele de presiune la etan\u0219\u0103ri acolo unde procesul permite.<\/li>\n<li><strong>Monitorizare continu\u0103:<\/strong> real-time <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/condition-monitoring\/\">monitorizarea st\u0103rii<\/a> cu alarme sub-sincrone dedicate.<\/li>\n<\/ul>\n<h2>5. Detectare \u0219i interven\u021bie de urgen\u021b\u0103<\/h2>\n<h3>Semne de avertizare timpurie<\/h3>\n<ul>\n<li>V\u00e2rfuri sub-sincrone mici care \u00eencep s\u0103 apar\u0103 \u00een vibra\u021bie <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/spectrum\/\">spectru<\/a>.<\/li>\n<li>Componente intermitente de \u00eenalt\u0103 frecven\u021b\u0103.<\/li>\n<li>O cre\u0219tere treptat\u0103 a nivelului general <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration-severity\/\">intensitatea vibra\u021biilor<\/a> pe m\u0103sur\u0103 ce tura\u021bia se apropie de prag.<\/li>\n<li>Changes in the <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/orbit\/\">orbit\u0103<\/a> forma captat\u0103 de sondele de proximitate.<\/li>\n<\/ul>\n<h3>Ac\u021biuni imediate la detectarea v\u00e2rtejului de abur<\/h3>\n<ol>\n<li><strong>Reduce speed:<\/strong> reduce\u021bi imediat tura\u021bia sub prag.<\/li>\n<li><strong>Nu \u00eent\u00e2rzia\u021bi:<\/strong> amplitudinea poate cre\u0219te de la un nivel acceptabil la unul distructiv \u00een 30\u201360 de secunde.<\/li>\n<li><strong>Oprire de urgen\u021b\u0103:<\/strong> opri\u021bi de urgen\u021b\u0103 ma\u0219ina dac\u0103 o reducere a tura\u021biei este insuficient\u0103 sau imposibil\u0103.<\/li>\n<li><strong>Documenta\u021bi evenimentul:<\/strong> \u00eenregistra\u021bi tura\u021bia la debut, frecven\u021ba, amplitudinea de v\u00e2rf \u0219i condi\u021biile de func\u021bionare.<\/li>\n<li><strong>Nu reporni\u021bi:<\/strong> men\u021bine\u021bi ma\u0219ina oprit\u0103 p\u00e2n\u0103 c\u00e2nd cauza principal\u0103 este identificat\u0103 \u0219i remediat\u0103.<\/li>\n<\/ol>\n<h3>Unde se \u00eencadreaz\u0103 instrumentele de teren<\/h3>\n<p>Sistemele de protec\u021bie instalate permanent gestioneaz\u0103 declan\u0219area instantanee, \u00eens\u0103 un analizor portabil cu dou\u0103 canale este de nepre\u021buit pentru investigarea instabilit\u0103\u021bii dup\u0103 oprirea ma\u0219inii \u0219i pentru verific\u0103rile de punere \u00een func\u021biune ulterioare. Un instrument precum <a href=\"https:\/\/vibromera.eu\/ro\/produs\/balanset-1\/\">Balanset-1A<\/a> capteaz\u0103 spectrul FFT pentru a confirma v\u00e2rful sub-sincron, urm\u0103re\u0219te amplitudinea acestuia \u00een timpul unei acceler\u0103ri controlate \u0219i permite unui inginer s\u0103 exclud\u0103 mai \u00eent\u00e2i o problem\u0103 de tip 1\u00d7 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/imbalance\/\">dezechilibru<\/a> \u2014 prin m\u0103surarea amplitudinii \u0219i a fazei la tura\u021bia de func\u021bionare \u2014 \u00eenainte de a atribui vibra\u021bia unei adev\u0103rate instabilit\u0103\u021bi de etan\u0219are auto-excitate. Separarea unui dezechilibru obi\u0219nuit, pe care <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/echilibrarea-campului\/\">echilibrarea la fa\u021ba locului<\/a> \u00eel poate corecta, de v\u00e2rtejul de abur veritabil, pe care nu \u00eel poate corecta, este un pas de diagnostic timpuriu esen\u021bial.<\/p>\n<h2>6. Industrii, aplica\u021bii \u0219i fenomene conexe<\/h2>\n<p>V\u00e2rtejul de abur prezint\u0103 preocup\u0103ri deosebite \u00een:<\/p>\n<ul>\n<li><strong>Produc\u021bia de energie:<\/strong> turbogeneratoare mari cu abur.<\/li>\n<li><strong>Petrochimie:<\/strong> compresoare \u0219i pompe ac\u021bionate cu abur.<\/li>\n<li><strong>Gas turbines:<\/strong> motoare de avia\u021bie \u0219i turbine industriale cu gaz.<\/li>\n<li><strong>Industrii de proces:<\/strong> orice turboma\u0219in\u0103 de mare vitez\u0103 echipat\u0103 cu etan\u0219\u0103ri tip labirint.<\/li>\n<\/ul>\n<p>Se \u00eenscrie totodat\u0103 \u00eentr-o familie de instabilit\u0103\u021bi str\u00e2ns \u00eenrudite. <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/oil-whirl\/\">V\u00e2rtej de ulei<\/a> \u00eemp\u0103rt\u0103\u0219e\u0219te acela\u0219i mecanism de destabilizare, dar \u00eentr-o pelicul\u0103 de ulei a lag\u0103rului, nu \u00eentr-o etan\u0219are; <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/shaft-whip\/\">biciuirea arborelui<\/a> prezint\u0103 aceea\u0219i blocare a frecven\u021bei la o frecven\u021b\u0103 proprie; \u0219i toate fac parte din categoria mai larg\u0103 a vibra\u021biilor auto-excitate <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/rotor-instability\/\">instabilitatea rotorului<\/a>. De\u0219i progresele \u00een tehnologia etan\u0219\u0103rilor \u0219i \u00een proiectarea lag\u0103relor au redus frecven\u021ba apari\u021biei sale, \u00een\u021belegerea v\u00e2rtejului de abur r\u0103m\u00e2ne esen\u021bial\u0103 pentru oricine proiecteaz\u0103 sau opereaz\u0103 turboma\u0219ini de mare vitez\u0103 \u0219i \u00eenalt\u0103 presiune.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/\">\u2190 \u00cenapoi la indexul principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Afla\u021bi despre v\u00e2rtejul de abur, o instabilitate a vibra\u021biilor autoexcitate \u00een turbinele cu abur cauzat\u0103 de for\u021bele aerodinamice de cuplare \u00eencruci\u0219at\u0103 din etan\u0219\u0103rile labirint \u0219i jocurile de la v\u00e2rful palelor.<\/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\/ro\/wp-json\/wp\/v2\/glossary\/255","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/255\/revisions"}],"predecessor-version":[{"id":101413,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/255\/revisions\/101413"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/media?parent=255"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/categories?post=255"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/tags?post=255"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}