{"id":695852,"date":"2024-11-04T00:09:55","date_gmt":"2024-11-03T23:09:55","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=695852"},"modified":"2024-11-04T00:09:55","modified_gmt":"2024-11-03T23:09:55","slug":"dong-chay-chat-long-trong-san-xuat-boi-dap","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/dong-chay-chat-long-trong-san-xuat-boi-dap\/","title":{"rendered":"D\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp"},"content":{"rendered":"<p class=\"sidekick\">D\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp gi\u1ea3i th\u00edch c\u00e1ch th\u1ee9c v\u00e0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u1ea5t l\u1ecfng trong qu\u00e1 tr\u00ecnh t\u1ea1o h\u00ecnh s\u1ea3n ph\u1ea9m b\u1ed3i \u0111\u1eafp.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/dong_chay_chat_long_trong_san_xuat_boi_dap.png\" alt=\"D\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>D\u00f2ng Ch\u1ea3y Ch\u1ea5t L\u1ecfng Trong S\u1ea3n Xu\u1ea5t B\u1ed3i \u0110\u1eafp<\/h2>\n<p>S\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp, hay c\u00f2n g\u1ecdi l\u00e0 in 3D, \u0111\u00e3 v\u00e0 \u0111ang tr\u1edf th\u00e0nh m\u1ed9t c\u00f4ng ngh\u1ec7 quan tr\u1ecdng trong nhi\u1ec1u l\u0129nh v\u1ef1c, t\u1eeb y h\u1ecdc, h\u00e0ng kh\u00f4ng \u0111\u1ebfn \u00f4 t\u00f4. M\u1ed9t trong nh\u1eefng kh\u00eda c\u1ea1nh quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp l\u00e0 vi\u1ec7c ki\u1ec3m so\u00e1t d\u00f2ng ch\u1ea3y c\u1ee7a ch\u1ea5t l\u1ecfng, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u1ef1a n\u00f3ng ch\u1ea3y ho\u1eb7c kim lo\u1ea1i l\u1ecfng. Hi\u1ec3u r\u00f5 v\u1ec1 d\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng trong qu\u00e1 tr\u00ecnh n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m m\u00e0 c\u00f2n n\u00e2ng cao hi\u1ec7u su\u1ea5t s\u1ea3n xu\u1ea5t.<\/p>\n<h2>Nguy\u00ean l\u00fd c\u01a1 b\u1ea3n c\u1ee7a d\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng<\/h2>\n<p>D\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh hai lo\u1ea1i ch\u00ednh: d\u00f2ng ch\u1ea3y t\u1ea7ng v\u00e0 d\u00f2ng ch\u1ea3y r\u1ed1i. D\u00f2ng ch\u1ea3y t\u1ea7ng l\u00e0 d\u00f2ng ch\u1ea3y m\u00e0 ch\u1ea5t l\u1ecfng di chuy\u1ec3n theo c\u00e1c l\u1edbp song song, kh\u00f4ng b\u1ecb x\u00e1o tr\u1ed9n. Tr\u00e1i l\u1ea1i, d\u00f2ng ch\u1ea3y r\u1ed1i l\u00e0 d\u00f2ng ch\u1ea3y m\u00e0 c\u00e1c ph\u1ea7n t\u1eed ch\u1ea5t l\u1ecfng chuy\u1ec3n \u0111\u1ed9ng h\u1ed7n lo\u1ea1n, kh\u00f4ng theo h\u01b0\u1edbng nh\u1ea5t \u0111\u1ecbnh.<\/p>\n<ul>\n<li><strong>D\u00f2ng ch\u1ea3y t\u1ea7ng:<\/strong> X\u1ea3y ra \u1edf v\u1eadn t\u1ed1c th\u1ea5p, th\u01b0\u1eddng g\u1eb7p trong c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 \u0111\u01b0\u1eddng k\u00ednh nh\u1ecf nh\u01b0 \u1ed1ng d\u1eabn ho\u1eb7c v\u00f2i phun in 3D.<\/li>\n<li><strong>D\u00f2ng ch\u1ea3y r\u1ed1i:<\/strong> X\u1ea3y ra \u1edf v\u1eadn t\u1ed1c cao, khi m\u00e0 t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y v\u01b0\u1ee3t qua m\u1ed9t ng\u01b0\u1ee1ng nh\u1ea5t \u0111\u1ecbnh, g\u1ecdi l\u00e0 s\u1ed1 Reynolds (Re).<\/li>\n<\/ul>\n<h2>S\u1ed1 Reynolds (Re)<\/h2>\n<p>S\u1ed1 Reynolds l\u00e0 m\u1ed9t ch\u1ec9 s\u1ed1 kh\u00f4ng th\u1ee9 nguy\u00ean, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n lo\u1ea1i d\u00f2ng ch\u1ea3y c\u1ee7a ch\u1ea5t l\u1ecfng. N\u00f3 \u0111\u01b0\u1ee3c t\u00ednh theo c\u00f4ng th\u1ee9c:<\/p>\n<p>\\[<br \/>\nRe = \\frac{\\rho v L}{\\mu}<br \/>\n\\]\n<p>Trong \u0111\u00f3:<\/p>\n<ul>\n<li>\\(\\rho\\): Kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang c\u1ee7a ch\u1ea5t l\u1ecfng (kg\/m<sup>3<\/sup>)<\/li>\n<li>v: V\u1eadn t\u1ed1c ch\u1ea5t l\u1ecfng (m\/s)<\/li>\n<li>L: Chi\u1ec1u d\u00e0i \u0111\u1eb7c tr\u01b0ng c\u1ee7a h\u1ec7 th\u1ed1ng (m)<\/li>\n<li>\\(\\mu\\): \u0110\u1ed9 nh\u1edbt c\u1ee7a ch\u1ea5t l\u1ecfng (Pa.s)<\/li>\n<\/ul>\n<p>Khi Re < 2000, d\u00f2ng ch\u1ea3y th\u01b0\u1eddng l\u00e0 d\u00f2ng ch\u1ea3y t\u1ea7ng. Khi Re > 4000, d\u00f2ng ch\u1ea3y th\u01b0\u1eddng l\u00e0 d\u00f2ng ch\u1ea3y r\u1ed1i. Trong kho\u1ea3ng t\u1eeb 2000 \u0111\u1ebfn 4000, d\u00f2ng ch\u1ea3y c\u00f3 th\u1ec3 l\u00e0 h\u1ed7n h\u1ee3p c\u1ee7a c\u1ea3 hai lo\u1ea1i.<\/p>\n<h2>\u1ee8ng d\u1ee5ng trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp<\/h2>\n<p>Trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp, vi\u1ec7c ki\u1ec3m so\u00e1t d\u00f2ng ch\u1ea3y c\u1ee7a ch\u1ea5t l\u1ecfng c\u00f3 vai tr\u00f2 c\u1ef1c k\u1ef3 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1ec1 \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 b\u1ec1 m\u1eb7t.<\/p>\n<ol>\n<li><strong>\u0110\u1ed9 nh\u1edbt c\u1ee7a ch\u1ea5t l\u1ecfng:<\/strong> \u0110\u1ed9 nh\u1edbt \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ea3y c\u1ee7a ch\u1ea5t l\u1ecfng. \u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m t\u1ed1t nh\u1ea5t, c\u1ea7n l\u1ef1a ch\u1ecdn lo\u1ea1i ch\u1ea5t l\u1ecfng c\u00f3 \u0111\u1ed9 nh\u1edbt ph\u00f9 h\u1ee3p.<\/li>\n<li><strong>V\u1eadn t\u1ed1c phun:<\/strong> V\u1eadn t\u1ed1c phun qu\u00e1 cao c\u00f3 th\u1ec3 g\u00e2y ra d\u00f2ng ch\u1ea3y r\u1ed1i, trong khi v\u1eadn t\u1ed1c qu\u00e1 th\u1ea5p c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 ch\u1ea5t l\u1ecfng d\u00e0n tr\u1ea3i \u0111\u1ec1u. Do \u0111\u00f3, c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh v\u1eadn t\u1ed1c phun sao cho h\u1ee3p l\u00fd.<\/li>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9:<\/strong> Nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n th\u01b0\u1eddng l\u00e0m gi\u1ea3m \u0111\u1ed9 nh\u1edbt c\u1ee7a ch\u1ea5t l\u1ecfng, gi\u00fap d\u1ec5 d\u00e0ng trong vi\u1ec7c phun v\u00e0 lan t\u1ecfa. Tuy nhi\u00ean, c\u1ea7n ch\u00fa \u00fd r\u1eb1ng nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao c\u00f3 th\u1ec3 g\u00e2y h\u01b0 h\u1ecfng ho\u1eb7c bi\u1ebfn d\u1ea1ng s\u1ea3n ph\u1ea9m.<\/li>\n<\/ol>\n<p>Nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0y \u0111\u00f2i h\u1ecfi s\u1ef1 ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd v\u00e0 s\u1ef1 hi\u1ec3u bi\u1ebft s\u00e2u s\u1eafc v\u1ec1 nguy\u00ean l\u00fd d\u00f2ng ch\u1ea3y c\u1ee7a ch\u1ea5t l\u1ecfng. \u0110i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t m\u00e0 c\u00f2n gi\u00fap ti\u1ebft ki\u1ec7m nguy\u00ean li\u1ec7u v\u00e0 n\u0103ng l\u01b0\u1ee3ng.<\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>D\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong c\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp. Hi\u1ec3u r\u00f5 v\u1ec1 c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn d\u00f2ng ch\u1ea3y, nh\u01b0 \u0111\u1ed9 nh\u1edbt, v\u1eadn t\u1ed1c v\u00e0 nhi\u1ec7t \u0111\u1ed9, s\u1ebd gi\u00fap c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a qu\u00e1 tr\u00ecnh in 3D. \u0110\u00e2y l\u00e0 m\u1ed9t kh\u00eda c\u1ea1nh quan tr\u1ecdng m\u00e0 c\u00e1c k\u1ef9 s\u01b0 v\u00e0 nh\u00e0 nghi\u00ean c\u1ee9u c\u1ea7n quan t\u00e2m \u0111\u1ec3 ph\u00e1t tri\u1ec3n c\u00e1c gi\u1ea3i ph\u00e1p s\u1ea3n xu\u1ea5t ti\u00ean ti\u1ebfn trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>D\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp gi\u1ea3i th\u00edch c\u00e1ch th\u1ee9c v\u00e0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u1ea5t l\u1ecfng trong qu\u00e1 tr\u00ecnh t\u1ea1o h\u00ecnh s\u1ea3n ph\u1ea9m b\u1ed3i \u0111\u1eafp.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>D\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp<\/title>\n<meta name=\"description\" content=\"D\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp gi\u1ea3i th\u00edch c\u00e1ch th\u1ee9c v\u00e0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u1ea5t l\u1ecfng trong qu\u00e1 tr\u00ecnh t\u1ea1o h\u00ecnh s\u1ea3n ph\u1ea9m b\u1ed3i \u0111\u1eafp.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.thermal-engineering.org\/vi\/dong-chay-chat-long-trong-san-xuat-boi-dap\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"D\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp\" \/>\n<meta property=\"og:description\" content=\"D\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp gi\u1ea3i th\u00edch c\u00e1ch th\u1ee9c v\u00e0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u1ea5t l\u1ecfng trong qu\u00e1 tr\u00ecnh t\u1ea1o h\u00ecnh s\u1ea3n ph\u1ea9m b\u1ed3i \u0111\u1eafp.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.thermal-engineering.org\/vi\/dong-chay-chat-long-trong-san-xuat-boi-dap\/\" \/>\n<meta property=\"og:site_name\" content=\"Thermal Engineering\" \/>\n<meta property=\"article:published_time\" content=\"2024-11-03T23:09:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/dong_chay_chat_long_trong_san_xuat_boi_dap.png\" \/>\n<meta name=\"twitter:card\" content=\"summary\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\">\n\t<meta name=\"twitter:data1\" content=\"Nick Connor\">\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\">\n\t<meta name=\"twitter:data2\" content=\"4 minutes\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\",\"url\":\"https:\/\/www.thermal-engineering.org\/fr\/\",\"name\":\"Thermal Engineering\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/www.thermal-engineering.org\/fr\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"vi-VN\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/dong-chay-chat-long-trong-san-xuat-boi-dap\/#primaryimage\",\"inLanguage\":\"vi-VN\",\"url\":\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/dong_chay_chat_long_trong_san_xuat_boi_dap.png\",\"width\":1000,\"height\":1000,\"caption\":\"D\\u00f2ng ch\\u1ea3y ch\\u1ea5t l\\u1ecfng trong s\\u1ea3n xu\\u1ea5t b\\u1ed3i \\u0111\\u1eafp\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/dong-chay-chat-long-trong-san-xuat-boi-dap\/#webpage\",\"url\":\"https:\/\/www.thermal-engineering.org\/vi\/dong-chay-chat-long-trong-san-xuat-boi-dap\/\",\"name\":\"D\\u00f2ng ch\\u1ea3y ch\\u1ea5t l\\u1ecfng trong s\\u1ea3n xu\\u1ea5t b\\u1ed3i \\u0111\\u1eafp\",\"isPartOf\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/dong-chay-chat-long-trong-san-xuat-boi-dap\/#primaryimage\"},\"datePublished\":\"2024-11-03T23:09:55+00:00\",\"dateModified\":\"2024-11-03T23:09:55+00:00\",\"author\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"D\\u00f2ng ch\\u1ea3y ch\\u1ea5t l\\u1ecfng trong s\\u1ea3n xu\\u1ea5t b\\u1ed3i \\u0111\\u1eafp gi\\u1ea3i th\\u00edch c\\u00e1ch th\\u1ee9c v\\u00e0 nguy\\u00ean l\\u00fd ho\\u1ea1t \\u0111\\u1ed9ng c\\u1ee7a ch\\u1ea5t l\\u1ecfng trong qu\\u00e1 tr\\u00ecnh t\\u1ea1o h\\u00ecnh s\\u1ea3n ph\\u1ea9m b\\u1ed3i \\u0111\\u1eafp.\",\"inLanguage\":\"vi-VN\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.thermal-engineering.org\/vi\/dong-chay-chat-long-trong-san-xuat-boi-dap\/\"]}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\",\"name\":\"Nick Connor\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#personlogo\",\"inLanguage\":\"vi-VN\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g\",\"caption\":\"Nick Connor\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","_links":{"self":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/posts\/695852"}],"collection":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/comments?post=695852"}],"version-history":[{"count":0,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/posts\/695852\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/media?parent=695852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/categories?post=695852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/tags?post=695852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}