{"id":207,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/recirculation\/"},"modified":"2026-05-23T22:53:11","modified_gmt":"2026-05-23T22:53:11","slug":"recirculation","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/ro\/glossary\/recirculation\/","title":{"rendered":"Ce este recircularea? Instabilitatea pompei cu debit sc\u0103zut"},"content":{"rendered":"<h1>\u00cen\u021belegerea recircul\u0103rii \u00een pompe<\/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\/207?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\/207?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\/207?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\/207?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\/207?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\/207?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\/207?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\/207?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, 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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\/207?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 href=\"\/ro\/wp-json\/wp\/v2\/glossary\/207?add-to-cart=1852\" 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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\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/207?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=\"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\/207?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Reflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201eReflective tape\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_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\/207?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\/207?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>Recirculare<\/strong> este o instabilitate a fluxului care apare \u00een pompele centrifuge \u0219i ventilatoare atunci c\u00e2nd acestea func\u021bioneaz\u0103 la debite cu mult sub punctul lor de proiectare \u2014 punctul de eficien\u021b\u0103 maxim\u0103 (BEP). La debite reduse, o parte din fluid \u00ee\u0219i inverseaz\u0103 direc\u021bia, curg\u00e2nd \u00eenapoi din zona de refulare spre cea de aspira\u021bie \u0219i form\u00e2nd modele instabile de recirculare la intrarea sau ie\u0219irea rotorului. Rezultatul este o frecven\u021b\u0103 joas\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration\/\">vibra\u021bii<\/a> pulsa\u021bii (de obicei \u00eentre 0,2 \u0219i 0,8 ori viteza de rota\u021bie \u0219i, prin urmare, <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/sub-synchronous\/\">subsincron<\/a>), zgomot, pierderi de eficien\u021b\u0103 \u0219i \u2014 \u00een cazuri grave \u2014 avarii mecanice grave cauzate de solicit\u0103ri ciclice, <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/cavitation\/\">cavita\u021bie<\/a> \u0219i \u00eenc\u0103lzire. Aceasta se num\u0103r\u0103 printre cele mai d\u0103un\u0103toare moduri de utilizare a unei pompe, iar evitarea ei este esen\u021bial\u0103 pentru <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/centrifugal-pump-defects\/\">fiabilitatea pompei<\/a>.<\/p>\n<h2>1. Defini\u021bie: O instabilitate hidraulic\u0103 cu debit redus<\/h2>\n<p>Un rotor este proiectat astfel \u00eenc\u00e2t fluidul s\u0103 intre \u0219i s\u0103 ias\u0103 dintre paletele sale la unghiuri specifice la punctul de eficien\u021b\u0103 maxim\u0103 (BEP). Dac\u0103 se reduce debitul cu mult sub acest punct, triunghiurile de vitez\u0103 nu mai corespund geometriei paletelor: unghiul de inciden\u021b\u0103 devine total incorect, fluxul se desprinde de palete, iar fluidul pe care rotorul l-a accelerat deja se revars\u0103 \u00eenapoi. Aceste curen\u021bi inversa\u021bi \u0219i v\u00e2rtejuri constituie recircularea. Deoarece starea instabil\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/hydraulic-forces\/\">for\u021be hidraulice<\/a> pe care le genereaz\u0103 pot fi enorme, iar recircularea poate provoca defectarea rulmen\u021bilor, deteriorarea garniturilor \u0219i a arborelui <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/fatigue\/\">oboseal\u0103<\/a> \u0219i chiar defectarea structural\u0103 a rotorului \u00een sine. \u00cen\u021belegerea \u0219i prevenirea acestui fenomen sunt esen\u021biale pentru durata de via\u021b\u0103 a pompei.<\/p>\n<h2>2. Tipuri de recirculare<\/h2>\n<h3>Recirculare prin aspira\u021bie<\/h3>\n<p>Se produce la intrarea rotorului (pe partea de aspira\u021bie):<\/p>\n<ul>\n<li><strong>Mecanism:<\/strong> la debit redus, fluidul care intr\u0103 \u00een ochiul rotorului ajunge sub un unghi de curgere incorect.<\/li>\n<li><strong>Separare:<\/strong> fluxul se desprinde de suprafe\u021bele de aspira\u021bie ale paletelor.<\/li>\n<li><strong>Reverse flow:<\/strong> lichidul separat se revars\u0103 \u00eenapoi prin orificiul rotorului.<\/li>\n<li><strong>Debut:<\/strong> de obicei la 60\u201370 % din debitul BEP.<\/li>\n<li><strong>Loca\u0163ie:<\/strong> concentrate \u00een apropierea discurilor rotorului.<\/li>\n<\/ul>\n<h3>Recirculare la refulare<\/h3>\n<p>Se produce la refularea rotorului (ie\u0219irea):<\/p>\n<ul>\n<li><strong>Mecanism:<\/strong> Fluidul de refulare de \u00eenalt\u0103 presiune curge \u00eenapoi \u00een periferia rotorului<\/li>\n<li><strong>Cale:<\/strong> prin spa\u021biile de trecere, cum ar fi inelele de uzur\u0103 \u0219i spa\u021biile laterale.<\/li>\n<li><strong>Amestecare:<\/strong> fluxul recirculat se amestec\u0103 cu fluxul principal, gener\u00e2nd <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/flow-turbulence\/\">turbulen\u021b\u0103<\/a>.<\/li>\n<li><strong>Debut:<\/strong> de obicei la 40\u201360 % din debitul BEP.<\/li>\n<li><strong>Severitate:<\/strong> \u00cen general, mai d\u0103un\u0103toare dec\u00e2t recircularea prin aspira\u021bie<\/li>\n<\/ul>\n<h3>Recirculare combinat\u0103<\/h3>\n<ul>\n<li>Se produc simultan at\u00e2t recircularea prin aspira\u021bie, c\u00e2t \u0219i cea prin refulare.<\/li>\n<li>Se produce la debite foarte mici, sub aproximativ 40 % din BEP.<\/li>\n<li>Provoac\u0103 cele mai puternice vibra\u021bii \u0219i prezint\u0103 cel mai mare poten\u021bial de a provoca daune.<\/li>\n<li>Ar trebui evitat prin intermediul protec\u021biei \u00eempotriva debitului minim.<\/li>\n<\/ul>\n<h2>3. Semn\u0103tura vibra\u021bional\u0103<\/h2>\n<h3>Model caracteristic<\/h3>\n<ul>\n<li><strong>Frecven\u0163\u0103:<\/strong> sub-sincron, de obicei \u00eentre 0,2 \u0219i 0,8 ori viteza de rota\u021bie.<\/li>\n<li><strong>Exemplu:<\/strong> o pomp\u0103 cu 1750 rpm care prezint\u0103 pulsa\u021bii de 10\u201320 Hz.<\/li>\n<li><strong>Amplitudine:<\/strong> poate atinge o valoare de 2\u20135 ori mai mare dec\u00e2t vibra\u021bia normal\u0103 de func\u021bionare.<\/li>\n<li><strong>Instabil:<\/strong> at\u00e2t frecven\u021ba, c\u00e2t \u0219i amplitudinea variaz\u0103, \u00een loc s\u0103 r\u0103m\u00e2n\u0103 constante.<\/li>\n<li><strong>Componenta aleatorie:<\/strong> o cre\u0219tere pe band\u0103 larg\u0103 datorat\u0103 turbulen\u021belor, suprapus\u0103 peste semnal.<\/li>\n<\/ul>\n<p>Acest caracter oscilant \u0219i nesincronizat este ceea ce deosebe\u0219te recircularea de ritmul constant de 1\u00d7 al <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/unbalance\/\">dezechilibru<\/a> \u0219i valoarea maxim\u0103 a frecven\u021bei palelor de <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vane-passing-frequency\/\">frecven\u021ba de trecere a paletei<\/a>; pentru a o identifica, este de obicei necesar s\u0103 se analizeze at\u00e2t <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/spectrum\/\">spectru<\/a> \u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/time-waveform\/\">form\u0103 de und\u0103 temporal\u0103<\/a>.<\/p>\n<h3>Dependen\u021ba de flux<\/h3>\n<ul>\n<li><strong>High flow:<\/strong> f\u0103r\u0103 recirculare, vibra\u021bii reduse.<\/li>\n<li><strong>Debit moderat (80\u2013100 % din BEP):<\/strong> recirculare minim\u0103, vibra\u021bii acceptabile.<\/li>\n<li><strong>Debit redus (50\u201370 % din BEP):<\/strong> \u00eencepe recircularea prin aspira\u021bie, iar vibra\u021biile se intensific\u0103.<\/li>\n<li><strong>Debit foarte redus (&lt; 50 % din debitul nominal):<\/strong> recirculare intens\u0103 \u0219i vibra\u021bii foarte puternice.<\/li>\n<li><strong>Oprire:<\/strong> recirculare maxim\u0103, vibra\u021bii maxime \u0219i rata cea mai rapid\u0103 de deteriorare.<\/li>\n<\/ul>\n<h3>Indicatori suplimentari<\/h3>\n<ul>\n<li>A high <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/axial-vibration\/\">vibra\u021bii axiale<\/a> component.<\/li>\n<li>Zgomot intens \u2014 un urlet sau un bubuit.<\/li>\n<li>Sc\u0103derea performan\u021bei, cu presiunea \u0219i debitul situ\u00e2ndu-se sub curba de performan\u021b\u0103.<\/li>\n<li>Cre\u0219terea temperaturii datorat\u0103 pierderilor hidraulice care se transfer\u0103 \u00een fluid.<\/li>\n<\/ul>\n<h2>4. Consecin\u021be \u0219i daune<\/h2>\n<h3>Efecte imediate<\/h3>\n<ul>\n<li><strong>Vibra\u021bii puternice:<\/strong> poate dep\u0103\u0219i limitele de alarm\u0103 \u00een c\u00e2teva minute.<\/li>\n<li><strong>Zgomot:<\/strong> un urlet puternic \u0219i zgomotos.<\/li>\n<li><strong>Pierdere de eficien\u021b\u0103:<\/strong> un consum energetic ridicat \u00een raport cu debitul efectiv furnizat.<\/li>\n<li><strong>\u00cenc\u0103lzire:<\/strong> pierderile hidraulice transformate \u00een c\u0103ldur\u0103 \u00een carcas\u0103.<\/li>\n<\/ul>\n<h3>Daune mecanice<\/h3>\n<ul>\n<li><strong>Defec\u021biunea rulmentului:<\/strong> Sarcinile ciclice ridicate accelereaz\u0103 uzura rulmentului <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/bearing-wear\/\">uzur\u0103<\/a>.<\/li>\n<li><strong>Seal damage:<\/strong> vibra\u021biile \u0219i pulsa\u021biile de presiune distrug <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/seal-defects\/\">garnituri mecanice<\/a>.<\/li>\n<li><strong>Shaft fatigue:<\/strong> solicitarea de \u00eencovoiere alternativ\u0103 generat\u0103 de for\u021bele hidraulice instabile.<\/li>\n<li><strong>Deteriorarea rotorului:<\/strong> vane <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/impeller-defects\/\">fisurarea din cauza oboselii<\/a> din cauza solicit\u0103rilor ciclice.<\/li>\n<\/ul>\n<h3>Daune hidraulice<\/h3>\n<ul>\n<li><strong>Cavita\u021bie:<\/strong> zonele de recirculare sunt predispuse la cavita\u021bie, deoarece presiunea local\u0103 scade sub presiunea de vapori.<\/li>\n<li><strong>Eroziune:<\/strong> fluxul de recirculare cu vitez\u0103 mare erodeaz\u0103 suprafe\u021bele.<\/li>\n<li><strong>Cavita\u021bia vortex:<\/strong> v\u00e2rtejurile din zonele de recirculare produc cavita\u021bie \u00een nucleele lor de joas\u0103 presiune.<\/li>\n<\/ul>\n<h2>5. Detectarea \u0219i diagnosticarea<\/h2>\n<h3>Analiza vibra\u021biilor<\/h3>\n<ul>\n<li>C\u0103uta\u021bi componente subsincrone \u00een banda 0,2\u20130,8\u00d7.<\/li>\n<li>Efectua\u021bi teste la mai multe debite pentru a identifica comportamentul.<\/li>\n<li>Identifica\u021bi debitul la care \u00eencep pulsa\u021biile \u2014 momentul de debut al recircul\u0103rii.<\/li>\n<li>Compara\u021bi rezultatele cu previziunile din curba de performan\u021b\u0103 a pompei.<\/li>\n<\/ul>\n<h3>Testarea performan\u021bei<\/h3>\n<ul>\n<li>M\u0103sura\u021bi curba real\u0103 \u00een\u0103l\u021bime\u2013debit.<\/li>\n<li>Compara\u021bi-o cu curba de proiectare.<\/li>\n<li>O abatere la debite mici indic\u0103 recircularea.<\/li>\n<li>Un consum de energie mai mare dec\u00e2t cel prev\u0103zut de curb\u0103 constituie o dovad\u0103 \u00een acest sens.<\/li>\n<\/ul>\n<h3>Monitorizare acustic\u0103<\/h3>\n<ul>\n<li>Un zgomot caracteristic, asem\u0103n\u0103tor unui urlet turbulent.<\/li>\n<li>O cre\u0219tere a zgomotului de band\u0103 larg\u0103.<\/li>\n<li>Adesea se aude \u0219i se simte la carcasa pompei.<\/li>\n<\/ul>\n<h2>6. Prevenire \u0219i atenuare<\/h2>\n<h3>Strategii opera\u021bionale<\/h3>\n<h4>Protec\u021bie \u00eempotriva debitului minim<\/h4>\n<ul>\n<li>Instala\u021bi o conduct\u0103 de recirculare cu debit minim automat.<\/li>\n<li>O supap\u0103 se deschide ori de c\u00e2te ori debitul scade sub nivelul minim de siguran\u021b\u0103 (de obicei 60\u201370 % din BEP).<\/li>\n<li>Recirculeaz\u0103 lichidul evacuat \u00eenapoi c\u0103tre admisie sau \u00eentr-un rezervor.<\/li>\n<li>Astfel, pompa nu intr\u0103 \u00een zona de recirculare.<\/li>\n<\/ul>\n<h4>Controlul punctului de func\u021bionare<\/h4>\n<ul>\n<li>Evita\u021bi s\u0103 func\u021biona\u021bi sub debitul minim stabil continuu.<\/li>\n<li>Folosi\u021bi un variator de vitez\u0103 pentru a adapta pompa la cerere, valorific\u00e2nd <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/affinity-laws-calculator\/\">legi de afinitate<\/a> pentru a utiliza BEP \u00een diverse sarcini.<\/li>\n<li>Este recomandat s\u0103 folosi\u021bi mai multe pompe de dimensiuni mai mici \u00een locul unei singure pompe mari, pentru a ob\u021bine o capacitate de reglare mai bun\u0103.<\/li>\n<li>Porni\u021bi \u0219i opri\u021bi pompele \u00een paralel pe m\u0103sur\u0103 ce cererea se modific\u0103.<\/li>\n<\/ul>\n<h3>Solu\u021bii de design<\/h3>\n<ul>\n<li><strong>Inductor:<\/strong> o treapt\u0103 de admisie axial\u0103 pentru stabilizarea debitului de aspira\u021bie.<\/li>\n<li><strong>Rotoare cu debit redus:<\/strong> modele speciale destinate utiliz\u0103rii la debit redus.<\/li>\n<li><strong>Proper sizing:<\/strong> Nu alege\u021bi o pomp\u0103 prea mare, deoarece acest lucru va determina func\u021bionarea cronic\u0103 la debit redus.<\/li>\n<li><strong>Domeniu de func\u021bionare mai larg:<\/strong> alege\u021bi pompe cu curbe plate, care tolereaz\u0103 varia\u021biile de debit.<\/li>\n<\/ul>\n<h3>Proiectare sistem<\/h3>\n<ul>\n<li>Proiecta\u021bi sistemul astfel \u00eenc\u00e2t pompa s\u0103 func\u021bioneze \u00een apropierea punctului de eficien\u021b\u0103 maxim\u0103 (BEP).<\/li>\n<li>Asigura\u021bi o marj\u0103 NPSH adecvat\u0103 pentru a limita cavita\u021bia \u00een zonele de recirculare.<\/li>\n<li>Regla\u021bi supapele de control astfel \u00eenc\u00e2t s\u0103 reduce\u021bi la minimum restric\u021bionarea debitului de aspira\u021bie.<\/li>\n<li>Include\u021bi sisteme de derivare sau de recirculare pentru a asigura un debit minim.<\/li>\n<\/ul>\n<h2>7. Standarde \u0219i orient\u0103ri din domeniu<\/h2>\n<h3>Debit continuu minim<\/h3>\n<ul>\n<li><strong>API 610:<\/strong> Specific\u0103 debitul minim continuu stabil pentru pompele centrifuge<\/li>\n<li><strong>Valori tipice:<\/strong> 60\u201370 % din debitul BEP pentru pompele radiale, 70\u201380 % pentru modelele cu flux mixt.<\/li>\n<li><strong>Considera\u021bii termice:<\/strong> Debitul minim este, de asemenea, limitat de cre\u0219terea de temperatur\u0103 pe care fluidul o poate suporta la un debit redus.<\/li>\n<\/ul>\n<h3>Testarea performan\u021bei<\/h3>\n<ul>\n<li>Testele efectuate \u00een fabric\u0103 verific\u0103 punctul de declan\u0219are a recircul\u0103rii.<\/li>\n<li>Testele de performan\u021b\u0103 efectuate pe teren confirm\u0103 acest lucru \u00een cadrul sistemului instalat.<\/li>\n<li>Criteriile de acceptare specific\u0103 vibra\u021biile admise la debit minim, adesea raportate la <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/iso-20816-1\/\">ISO 20816<\/a> zone de severitate.<\/li>\n<\/ul>\n<p>Deoarece recircularea, dezechilibrul, efectele de trecere prin palete \u0219i cavita\u021bia pot toate contribui la cre\u0219terea vibra\u021biilor pompei, etapa practic\u0103 de diagnosticare const\u0103 \u00een m\u0103surarea spectrului la mai multe debite \u0219i identificarea componentei care variaz\u0103 \u00een func\u021bie de debit. Un analizor portabil cu dou\u0103 canale, precum <a href=\"https:\/\/vibromera.eu\/ro\/produs\/balanset-1\/\">Balanset-1A<\/a> detecteaz\u0103 pulsa\u021bia subsincron\u0103 \u0219i dependen\u021ba acesteia de debit direct la pomp\u0103, contribuind la confirmarea existen\u021bei recircul\u0103rii, mai degrab\u0103 dec\u00e2t a unei defec\u021biuni a rotorului \u2014 iar \u00een cazul \u00een care vibra\u021biile ridicate se dovedesc a fi de 1\u00d7 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/unbalance\/\">dezechilibru<\/a> \u00een rotor, permite tehnicianului s\u0103-l echilibreze f\u0103r\u0103 a demonta pompa. Pentru a identifica frecven\u021bele relevante \u00eenainte de a \u00eencepe, un <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/pump-cavitation-frequency\/\">estimator al frecven\u021bei de cavita\u021bie a pompei<\/a> \u0219i o <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/blade-pass-frequency\/\">calculator pentru frecven\u021ba de trecere a paletelor<\/a> marca\u021bi locurile \u00een care ar trebui s\u0103 apar\u0103 zgomotul de cavita\u021bie \u0219i v\u00e2rfurile de trecere a paletelor, astfel \u00eenc\u00e2t banda de recirculare subsincron\u0103 s\u0103 ias\u0103 \u00een eviden\u021b\u0103 \u00een mod clar.<\/p>\n<p>Recircularea se num\u0103r\u0103 printre cele mai severe condi\u021bii de func\u021bionare cu care se poate confrunta o pomp\u0103 centrifug\u0103. Semn\u0103tura caracteristic\u0103 a vibra\u021biilor subsincrone, amplitudinile mari ale pulsa\u021biilor \u0219i riscul de deteriorare mecanic\u0103 rapid\u0103 fac ca \u00een\u021belegerea condi\u021biilor de declan\u0219are, instalarea unui sistem de protec\u021bie \u00eempotriva debitului minim \u0219i evitarea func\u021bion\u0103rii cronice la debit redus s\u0103 fie esen\u021biale \u2014 acestea fiind elementele-cheie pentru fiabilitatea \u0219i durabilitatea pompei \u00een aplica\u021biile industriale.<\/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 recircularea \u00een pompe, inversarea fluxului \u0219i instabilitatea la debite mici, care cauzeaz\u0103 pulsa\u021bii de vibra\u021bii subsincrone, pierderi de eficien\u021b\u0103 \u0219i poten\u021biale daune.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-207","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/207","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\/207\/revisions"}],"predecessor-version":[{"id":101401,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/207\/revisions\/101401"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/media?parent=207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/categories?post=207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/tags?post=207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}