{"id":8427,"date":"2019-04-17T09:00:19","date_gmt":"2019-04-17T08:00:19","guid":{"rendered":"https:\/\/vaporparalaindustria.com\/?p=8427"},"modified":"2021-04-20T17:43:45","modified_gmt":"2021-04-20T16:43:45","slug":"sistemas-de-vapor-que-informacion-se-debe-reunir-antes-del-dimensionado-de-una-valvula-de-control","status":"publish","type":"post","link":"https:\/\/vaporparalaindustria.com\/pt\/sistemas-de-vapor-que-informacion-se-debe-reunir-antes-del-dimensionado-de-una-valvula-de-control\/","title":{"rendered":"Sistemas a vapor: Que informa\u00e7\u00f5es devem ser recolhidas antes de dimensionar uma v\u00e1lvula de controle?"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Antes de dimensionar uma v\u00e1lvula de controle em sistemas de vapor, \u00e9 necess\u00e1rio utilizar uma<\/span><span style=\"font-weight: 400;\">A informa\u00e7\u00e3o m\u00ednima para determinar o tamanho correto da v\u00e1lvula \u00e9 dada abaixo:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">A press\u00e3o do vapor de alimenta\u00e7\u00e3o deve ser conhecida.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">A press\u00e3o do vapor no permutador de calor deve ser conhecida para satisfazer a carga m\u00e1xima de calor. <\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">A diferen\u00e7a entre estes dois crit\u00e9rios define a press\u00e3o diferencial atrav\u00e9s de uma v\u00e1lvula na sua condi\u00e7\u00e3o de carga completa.<\/span><\/p>\n<p><script src=\"https:\/\/fast.wistia.com\/embed\/medias\/1ykghlk4dz.jsonp\" async><\/script><script src=\"https:\/\/fast.wistia.com\/assets\/external\/E-v1.js\" async><\/script><\/p>\n<div class=\"wistia_embed wistia_async_1ykghlk4dz seo=false\" style=\"width: 100%; height: 218px; position: relative;\"><\/div>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">A carga t\u00e9rmica do equipamento deve ser conhecida, juntamente com a entalpia da evapora\u00e7\u00e3o (hfg) \u00e0 press\u00e3o de trabalho no permutador de calor. Estes factores s\u00e3o necess\u00e1rios para determinar o caudal m\u00e1ssico de vapor. <\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><b>Exemplo de dimensionamento de v\u00e1lvulas de controle em sistemas de vapor<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Em termos gr\u00e1ficos, vejamos o seguinte exemplo: <\/span><span style=\"font-weight: 400;\">Uma v\u00e1lvula de controle \u00e9 necess\u00e1ria para a aplica\u00e7\u00e3o mostrada na figura abaixo:<\/span><\/p>\n<p><a href=\"\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8428\" src=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2.jpg\" alt=\"\" width=\"1200\" height=\"600\" srcset=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2-150x75.jpg 150w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2-300x150.jpg 300w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2-600x300.jpg 600w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2-768x384.jpg 768w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2-800x400.jpg 800w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2-1024x512.jpg 1024w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2.jpg 1200w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400;\">O fabricante de <\/span><b>permutadores de calor de casco e tubo<\/b><span style=\"font-weight: 400;\"> especifica que uma press\u00e3o de vapor de 5 bar absoluta \u00e9 necess\u00e1ria no feixe de tubos para atender a uma demanda de 500 kW do processo. O vapor \u00famido, com t\u00edtulo de 0,96 e 10 bar a, est\u00e1 dispon\u00edvel a montante da v\u00e1lvula de controle. A entalpia de evapora\u00e7\u00e3o (hfg) a 5 bar a \u00e9 de 2108,23 kJ\/kg.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><b>Dimensionamento de uma v\u00e1lvula de controle em sistemas de vapor: Determina\u00e7\u00e3o do fluxo de vapor <\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Primeiro, o estado do vapor tem de ser determinado para a condi\u00e7\u00e3o a jusante de 5 bar a. Ao introduzir o vapor \u00famido a 10 bar a e com um t\u00edtulo de 0,96 no <\/span><a href=\"https:\/\/beta.spiraxsarco.com\/Resources-and-design-tools\" target=\"_blank\" rel=\"noopener noreferrer\"><b>mesas de vapor do site da Spirax Sarco<\/b><\/a><span style=\"font-weight: 400;\">O calor total (hg) contido no vapor \u00famido a 10 bar \u00e9 de 2697,15 kJ\/kg.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A press\u00e3o de projeto do trocador de calor \u00e9 de 5 bar e o calor total em vapor saturado seco a esta press\u00e3o \u00e9 de 2748,65 kJ\/kg (das tabelas de vapor). <\/span><span style=\"font-weight: 400;\">\u00a0<\/span><span style=\"font-weight: 400;\">O calor total em vapor de 10 bar (devido \u00e0 sua \"umidade\"), \u00e9 inferior ao calor total em vapor saturado a 5 bar, de modo que o vapor de baixa press\u00e3o n\u00e3o conter\u00e1 calor suficiente para estar completamente seco.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">O t\u00edtulo do vapor a baixa press\u00e3o \u00e9 o quociente entre os dois valores de calor total.<\/span><\/p>\n<p style=\"text-align: center;\"><b>T\u00edtulo de vapor a 5 bar a = 2697,15 \/ 2748,65 <\/b><b>= 0,98<\/b><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">A energia dispon\u00edvel para transfer\u00eancia de calor a 5 bar a \u00e9 de 0,98 x hfg a 5 bar a <\/span><\/p>\n<p style=\"text-align: center;\"><b>= 0,98 x 2108,23 kJ\/kg <\/b><\/p>\n<p style=\"text-align: center;\"><b>= 2066 kJ\/kg <\/b><\/p>\n<p><span style=\"font-weight: 400;\">Agora, o fluxo de vapor pode ser determinado a partir da seguinte equa\u00e7\u00e3o, onde hfg \u00e9 a entalpia de evapora\u00e7\u00e3o dispon\u00edvel ap\u00f3s considerar o vapor \u00famido:<\/span><\/p>\n<h3><a href=\"\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-8429 aligncenter\" src=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3.jpg\" alt=\"\" width=\"1200\" height=\"600\" srcset=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3-150x75.jpg 150w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3-300x150.jpg 300w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3-600x300.jpg 600w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3-768x384.jpg 768w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3-800x400.jpg 800w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3-1024x512.jpg 1024w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3.jpg 1200w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/a><\/h3>\n<h3><b>Dimensionamento de uma v\u00e1lvula de controle em sistemas de vapor: Determina\u00e7\u00e3o da taxa de queda de press\u00e3o (x) a plena carga<\/b><\/h3>\n<p><a href=\"\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8430\" src=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control.png\" alt=\"\" width=\"1082\" height=\"166\" srcset=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-150x23.png 150w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-300x46.png 300w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-600x92.png 600w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-768x118.png 768w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-800x123.png 800w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-1024x157.png 1024w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control.png 1082w\" sizes=\"auto, (max-width: 1082px) 100vw, 1082px\" \/><\/a><\/p>\n<p><a href=\"\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-8430 aligncenter\" src=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control.png\" alt=\"\" width=\"1082\" height=\"166\" srcset=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-150x23.png 150w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-300x46.png 300w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-600x92.png 600w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-768x118.png 768w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-800x123.png 800w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-1024x157.png 1024w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control.png 1082w\" sizes=\"auto, (max-width: 1082px) 100vw, 1082px\" \/><\/a><\/p>\n<h3><b>Dimensionamento de uma v\u00e1lvula de controle em sistemas de vapor: Determina\u00e7\u00e3o do Kvr necess\u00e1rio<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">A taxa de queda de press\u00e3o de carga total \u00e9 superior a 0,42, por isso aplicam-se condi\u00e7\u00f5es cr\u00edticas e a seguinte equa\u00e7\u00e3o pode ser usada para determinar o K<\/span><b>vr <\/b><span style=\"font-weight: 400;\">necess\u00e1rio:<\/span><\/p>\n<p><a href=\"\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-8431 aligncenter\" src=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4.jpg\" alt=\"\" width=\"1200\" height=\"600\" srcset=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4-150x75.jpg 150w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4-300x150.jpg 300w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4-600x300.jpg 600w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4-768x384.jpg 768w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4-800x400.jpg 800w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4-1024x512.jpg 1024w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4.jpg 1200w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400;\">Para o dimensionamento de uma v\u00e1lvula de controle, foi inicialmente selecionado um DN25 com um Kvs de 10. Agora, um c\u00e1lculo pode ser feito para determinar se o ru\u00eddo pode ser um problema com uma v\u00e1lvula deste tamanho onde vapor \u00famido flui atrav\u00e9s da sa\u00edda da v\u00e1lvula. A velocidade do vapor na sa\u00edda da v\u00e1lvula:<\/span><\/p>\n<p><a href=\"\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-8433 aligncenter\" src=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2.png\" alt=\"\" width=\"1826\" height=\"1722\" srcset=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2-150x141.png 150w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2-300x283.png 300w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2-600x566.png 600w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2-636x600.png 636w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2-768x724.png 768w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2-1024x966.png 1024w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2-1536x1449.png 1536w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-2.png 1826w\" sizes=\"auto, (max-width: 1826px) 100vw, 1826px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400;\">Como esta velocidade de sa\u00edda \u00e9 superior a 40 m\/s, a v\u00e1lvula de controle DN25 pode ser usada: <\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Criar um ru\u00eddo inaceit\u00e1vel. <\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Causar eros\u00e3o na sa\u00edda da v\u00e1lvula, como explicado no <\/span><a href=\"https:\/\/vaporparalaindustria.com\/pt\/factores-a-tener-en-cuenta-al-dimensionar-valvulas-de-control-en-sistemas-de-vapor\/\" target=\"_blank\" rel=\"noopener noreferrer\"><b>fatores a serem considerados no dimensionamento de v\u00e1lvulas de controle em sistemas a vapor<\/b><\/a><span style=\"font-weight: 400;\">.<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Portanto, a v\u00e1lvula de controle DN25 n\u00e3o \u00e9 adequada para esta aplica\u00e7\u00e3o onde o vapor \u00famido passa atrav\u00e9s da sa\u00edda da v\u00e1lvula. Uma solu\u00e7\u00e3o para este problema \u00e9 proceder com a <\/span><a href=\"https:\/\/vaporparalaindustria.com\/pt\/instalacion-de-valvulas-de-control-en-sistemas-de-vapor\/\" target=\"_blank\" rel=\"noopener noreferrer\"><b>instala\u00e7\u00e3o de v\u00e1lvulas de controle em sistemas de vapor<\/b><\/a><span style=\"font-weight: 400;\"> com um corpo maior com o mesmo Kvs de 10 para reduzir a velocidade de sa\u00edda de vapor \u00famido.<\/span><\/p>\n<p><a href=\"\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8432\" src=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3.png\" alt=\"\" width=\"1638\" height=\"480\" srcset=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3-150x44.png 150w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3-300x88.png 300w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3-600x176.png 600w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3-768x225.png 768w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3-800x234.png 800w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3-1024x300.png 1024w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3-1536x450.png 1536w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-3.png 1638w\" sizes=\"auto, (max-width: 1638px) 100vw, 1638px\" \/><\/a><\/p>\n<p><a href=\"\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8434\" src=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4.png\" alt=\"\" width=\"1812\" height=\"926\" srcset=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4-150x77.png 150w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4-300x153.png 300w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4-600x307.png 600w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4-768x392.png 768w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4-800x409.png 800w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4-1024x523.png 1024w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4-1536x785.png 1536w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/04\/Dimensionado-de-una-v\u00e1lvula-de-control-4.png 1812w\" sizes=\"auto, (max-width: 1812px) 100vw, 1812px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400;\">A tabela seguinte pode ser usada para determinar o tamanho da v\u00e1lvula de controle com uma \u00e1rea de sa\u00fade maior que 0,00222 m2.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Desta tabela pode-se ver que o menor tamanho de v\u00e1lvula necess\u00e1rio para satisfazer a velocidade m\u00e1xima de sa\u00edda de 40 m\/s para vapor \u00famido \u00e9 uma v\u00e1lvula DN65, com uma \u00e1rea de sa\u00edda de 0,00332 m2.<\/span><\/p>\n<p><a href=\"https:\/\/koi-3QNKZ0D2AO.marketingautomation.services\/net\/m?md=ZmkHbNtvWeUlu%2BCRWSYKby%2FCuH3FwLAp\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9780 size-full\" src=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/05\/CTA-DOSSIER-TE\u0301CNICO-VALVULAS-DE-CONTROL.jpg\" alt=\"\" width=\"2522\" height=\"1092\" srcset=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/05\/CTA-DOSSIER-TE\u0301CNICO-VALVULAS-DE-CONTROL-150x65.jpg 150w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/05\/CTA-DOSSIER-TE\u0301CNICO-VALVULAS-DE-CONTROL-300x130.jpg 300w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/05\/CTA-DOSSIER-TE\u0301CNICO-VALVULAS-DE-CONTROL-600x260.jpg 600w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/05\/CTA-DOSSIER-TE\u0301CNICO-VALVULAS-DE-CONTROL-768x333.jpg 768w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/05\/CTA-DOSSIER-TE\u0301CNICO-VALVULAS-DE-CONTROL-800x346.jpg 800w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/05\/CTA-DOSSIER-TE\u0301CNICO-VALVULAS-DE-CONTROL-1024x443.jpg 1024w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/05\/CTA-DOSSIER-TE\u0301CNICO-VALVULAS-DE-CONTROL-1536x665.jpg 1536w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/05\/CTA-DOSSIER-TE\u0301CNICO-VALVULAS-DE-CONTROL-2048x887.jpg 2048w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/05\/CTA-DOSSIER-TE\u0301CNICO-VALVULAS-DE-CONTROL.jpg 2522w\" sizes=\"auto, (max-width: 2522px) 100vw, 2522px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400;\">Portanto, devido ao vapor \u00famido que passa pela sa\u00edda da v\u00e1lvula, o tamanho da v\u00e1lvula de controle aumentaria, neste caso, de DN25 (1\") para DN65 (21\u20442\"). <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Uma solu\u00e7\u00e3o melhor poderia ser instalar um separador de gotas a montante da v\u00e1lvula de controle. Isto permitir\u00e1 o uso de uma v\u00e1lvula de controle menor, DN25, e \u00e9 prefer\u00edvel porque n\u00e3o \u00e9 necess\u00e1rio o uso de uma v\u00e1lvula de controle:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Proporcionar\u00e1 uma melhor regula\u00e7\u00e3o, pois \u00e9 mais adequado para lidar com altera\u00e7\u00f5es na carga de vapor. <\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ele ir\u00e1 garantir que vapor seco passe atrav\u00e9s da v\u00e1lvula de controle, reduzindo assim a propens\u00e3o para a eros\u00e3o na sede e na sa\u00edda da v\u00e1lvula. <\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">O custo de uma v\u00e1lvula menor e seu atuador mais espa\u00e7ador provavelmente ser\u00e1 o mesmo de uma v\u00e1lvula maior com um atuador maior.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">A fim de conhecer o <\/span><a href=\"https:\/\/vaporparalaindustria.com\/pt\/ecuaciones-para-el-dimensionado-de-valvulas-de-control-en-sistemas-de-vapor\/\" target=\"_blank\" rel=\"noopener noreferrer\"><b>equa\u00e7\u00f5es para dimensionamento de v\u00e1lvulas de controle<\/b><\/a><span style=\"font-weight: 400;\"> e saiba <\/span><a href=\"https:\/\/vaporparalaindustria.com\/pt\/como-es-el-comportamiento-del-vapor-en-una-aplicacion-de-transferencia-de-calor\/\" target=\"_blank\" rel=\"noopener noreferrer\"><b>como o vapor se comporta em uma aplica\u00e7\u00e3o de transfer\u00eancia de calor<\/b><\/a><span style=\"font-weight: 400;\">convidamo-lo a subscrever o\u00a0<\/span><a href=\"https:\/\/vaporparalaindustria.com\/pt\/newsletter\/?utm_source=newsletter&amp;utm_medium=cta_vapor&amp;utm_campaign=vapor_cta_newsletter\" target=\"_blank\" rel=\"noopener noreferrer\"><b>Boletim Informativo Steam for Industry<\/b><\/a><span style=\"font-weight: 400;\">Um recurso que o ajudar\u00e1 a receber mais conte\u00fado sobre as novas tend\u00eancias em vapor industrial.<\/span><\/p>\n<p><a href=\"https:\/\/vaporparalaindustria.com\/pt\/cursos-sistemas-de-vapor-limpio-y-puro\/?utm_source=CURSOS&amp;utm_medium=CTA_WEB&amp;utm_campaign=sistemas_de_vapor_limpio_puro_cta_web\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-8041 size-full\" src=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/02\/CURSOS-SISTEMAS-DE-VAPOR-LIMPIO-Y-PURO-SPIRAX.jpeg\" alt=\"\" width=\"1024\" height=\"400\" srcset=\"https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/02\/CURSOS-SISTEMAS-DE-VAPOR-LIMPIO-Y-PURO-SPIRAX-150x59.jpeg 150w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/02\/CURSOS-SISTEMAS-DE-VAPOR-LIMPIO-Y-PURO-SPIRAX-300x117.jpeg 300w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/02\/CURSOS-SISTEMAS-DE-VAPOR-LIMPIO-Y-PURO-SPIRAX-600x234.jpeg 600w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/02\/CURSOS-SISTEMAS-DE-VAPOR-LIMPIO-Y-PURO-SPIRAX-768x300.jpeg 768w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/02\/CURSOS-SISTEMAS-DE-VAPOR-LIMPIO-Y-PURO-SPIRAX-800x313.jpeg 800w, https:\/\/vaporparalaindustria.com\/wp-content\/uploads\/2019\/02\/CURSOS-SISTEMAS-DE-VAPOR-LIMPIO-Y-PURO-SPIRAX.jpeg 1024w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Antes de dimensionar uma v\u00e1lvula de controle em sistemas de vapor, \u00e9 necess\u00e1rio um m\u00ednimo de informa\u00e7\u00e3o para determinar o tamanho correto da v\u00e1lvula: A press\u00e3o do vapor de alimenta\u00e7\u00e3o deve ser conhecida. A press\u00e3o de vapor no permutador de calor deve ser conhecida para satisfazer a carga m\u00e1xima de calor. A diferen\u00e7a entre ...<\/p>","protected":false},"author":1,"featured_media":8438,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[85,86,76],"tags":[],"class_list":{"2":"type-post","7":"category-dimensionado-de-valvulas-de-control","8":"category-transferencia-de-calor","9":"category-valvulas-de-control","10":"entry"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dimensionado de una v\u00e1lvula de control: \u00bfQu\u00e9 informaci\u00f3n reunir?<\/title>\n<meta name=\"description\" content=\"Antes del dimensionado de una v\u00e1lvula de control en sistemas de vapor se 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