{"id":675565,"date":"2024-08-19T05:09:04","date_gmt":"2024-08-19T04:09:04","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=675565"},"modified":"2024-08-19T05:09:04","modified_gmt":"2024-08-19T04:09:04","slug":"cong-tac-nhiet-tu-dong-hoa-dieu-khien-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/cong-tac-nhiet-tu-dong-hoa-dieu-khien-nhu-the-nao\/","title":{"rendered":"C\u00f4ng t\u1eafc nhi\u1ec7t t\u1ef1 \u0111\u1ed9ng h\u00f3a \u0111i\u1ec1u khi\u1ec3n nh\u01b0 th\u1ebf n\u00e0o"},"content":{"rendered":"<p class=\"sidekick\">C\u00f4ng t\u1eafc nhi\u1ec7t t\u1ef1 \u0111\u1ed9ng h\u00f3a \u0111i\u1ec1u khi\u1ec3n nh\u01b0 th\u1ebf n\u00e0o: T\u00ecm hi\u1ec3u c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a c\u00f4ng t\u1eafc nhi\u1ec7t trong h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 t\u1ef1 \u0111\u1ed9ng.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/cong_tac_nhiet_tu_dong_hoa_dieu_khien_nhu_the_nao.png\" alt=\"C\u00f4ng t\u1eafc nhi\u1ec7t t\u1ef1 \u0111\u1ed9ng h\u00f3a \u0111i\u1ec1u khi\u1ec3n nh\u01b0 th\u1ebf n\u00e0o\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>C\u00f4ng t\u1eafc nhi\u1ec7t t\u1ef1 \u0111\u1ed9ng h\u00f3a \u0111i\u1ec1u khi\u1ec3n nh\u01b0 th\u1ebf n\u00e0o<\/h2>\n<p>C\u00f4ng t\u1eafc nhi\u1ec7t l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb quan tr\u1ecdng trong ng\u00e0nh nhi\u1ec7t k\u1ef9 thu\u1eadt, c\u00f3 nhi\u1ec7m v\u1ee5 ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 trong h\u1ec7 th\u1ed1ng. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9, t\u1ef1 \u0111\u1ed9ng b\u1eadt ho\u1eb7c t\u1eaft \u0111\u1ec3 duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 mong mu\u1ed1n. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1ea3i th\u00edch c\u00e1ch m\u00e0 c\u00f4ng t\u1eafc nhi\u1ec7t t\u1ef1 \u0111\u1ed9ng h\u00f3a \u0111i\u1ec1u khi\u1ec3n ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<h2>C\u1ea5u t\u1ea1o c\u1ee7a c\u00f4ng t\u1eafc nhi\u1ec7t<\/h2>\n<p>C\u00f4ng t\u1eafc nhi\u1ec7t bao g\u1ed3m ba b\u1ed9 ph\u1eadn ch\u00ednh: c\u1ea3m bi\u1ebfn nhi\u1ec7t, m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n v\u00e0 b\u1ed9 truy\u1ec1n \u0111\u1ed9ng.<\/p>\n<ul>\n<li><strong>C\u1ea3m bi\u1ebfn nhi\u1ec7t:<\/strong> \u0110\u00e2y l\u00e0 ph\u1ea7n ph\u00e1t hi\u1ec7n nhi\u1ec7t \u0111\u1ed9 hi\u1ec7n t\u1ea1i v\u00e0 g\u1eedi t\u00edn hi\u1ec7u \u0111\u1ebfn m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n. C\u1ea3m bi\u1ebfn n\u00e0y c\u00f3 th\u1ec3 l\u00e0 c\u1eb7p nhi\u1ec7t \u0111i\u1ec7n (thermocouple), c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111i\u1ec7n tr\u1edf (RTD), ho\u1eb7c nhi\u1ec7t \u0111i\u1ec7n tr\u1edf (thermistor).<\/li>\n<li><strong>M\u1ea1ch \u0111i\u1ec1u khi\u1ec3n:<\/strong> M\u1ea1ch n\u00e0y nh\u1eadn t\u00edn hi\u1ec7u t\u1eeb c\u1ea3m bi\u1ebfn nhi\u1ec7t v\u00e0 so s\u00e1nh v\u1edbi gi\u00e1 tr\u1ecb nhi\u1ec7t \u0111\u1ed9 c\u00e0i \u0111\u1eb7t. N\u1ebfu nhi\u1ec7t \u0111\u1ed9 hi\u1ec7n t\u1ea1i v\u01b0\u1ee3t qu\u00e1 ho\u1eb7c th\u1ea5p h\u01a1n gi\u00e1 tr\u1ecb c\u00e0i \u0111\u1eb7t, m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n s\u1ebd k\u00edch ho\u1ea1t b\u1ed9 truy\u1ec1n \u0111\u1ed9ng.<\/li>\n<li><strong>B\u1ed9 truy\u1ec1n \u0111\u1ed9ng:<\/strong> \u0110\u00e2y l\u00e0 b\u1ed9 ph\u1eadn th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng b\u1eadt ho\u1eb7c t\u1eaft thi\u1ebft b\u1ecb nhi\u1ec7t, v\u00ed d\u1ee5 nh\u01b0 b\u1eadt t\u1eaft qu\u1ea1t, m\u00e1y n\u00e9n, ho\u1eb7c van.<\/li>\n<\/ul>\n<h2>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00f4ng t\u1eafc nhi\u1ec7t<\/h2>\n<p>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00f4ng t\u1eafc nhi\u1ec7t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 qua c\u00e1c b\u01b0\u1edbc sau:<\/p>\n<ol>\n<li> <strong>Ph\u00e1t hi\u1ec7n nhi\u1ec7t \u0111\u1ed9:<\/strong> C\u1ea3m bi\u1ebfn nhi\u1ec7t c\u1ea3m nh\u1eadn nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 chuy\u1ec3n \u0111\u1ed5i th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n.<\/li>\n<li> <strong>So s\u00e1nh nhi\u1ec7t \u0111\u1ed9:<\/strong> M\u1ea1ch \u0111i\u1ec1u khi\u1ec3n nh\u1eadn t\u00edn hi\u1ec7u t\u1eeb c\u1ea3m bi\u1ebfn v\u00e0 so s\u00e1nh v\u1edbi gi\u00e1 tr\u1ecb nhi\u1ec7t \u0111\u1ed9 c\u00e0i \u0111\u1eb7t.<\/li>\n<li> <strong>K\u00edch ho\u1ea1t b\u1ed9 truy\u1ec1n \u0111\u1ed9ng:<\/strong> N\u1ebfu nhi\u1ec7t \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n c\u00e0i \u0111\u1eb7t, m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n s\u1ebd g\u1eedi t\u00edn hi\u1ec7u \u0111\u1ec3 b\u1eadt ho\u1eb7c t\u1eaft b\u1ed9 truy\u1ec1n \u0111\u1ed9ng. V\u00ed d\u1ee5, n\u1ebfu nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao, b\u1ed9 truy\u1ec1n \u0111\u1ed9ng s\u1ebd \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t \u0111\u1ec3 m\u1edf van x\u1ea3 nhi\u1ec7t ho\u1eb7c b\u1eadt qu\u1ea1t l\u00e0m m\u00e1t.<\/li>\n<\/ol>\n<h2>\u1ee8ng d\u1ee5ng c\u1ee7a c\u00f4ng t\u1eafc nhi\u1ec7t<\/h2>\n<p>C\u00f4ng t\u1eafc nhi\u1ec7t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c, bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>\u0110i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed:<\/strong> C\u00f4ng t\u1eafc nhi\u1ec7t gi\u00fap ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 trong ph\u00f2ng, \u0111\u1ea3m b\u1ea3o kh\u00f4ng kh\u00ed trong l\u00e0nh v\u00e0 tho\u1ea3i m\u00e1i.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb gia d\u1ee5ng:<\/strong> C\u00e1c thi\u1ebft b\u1ecb nh\u01b0 b\u00e0n \u1ee7i, l\u00f2 vi s\u00f3ng v\u00e0 t\u1ee7 l\u1ea1nh \u0111\u1ec1u s\u1eed d\u1ee5ng c\u00f4ng t\u1eafc nhi\u1ec7t \u0111\u1ec3 duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 th\u00edch h\u1ee3p.<\/li>\n<li><strong>C\u00f4ng nghi\u1ec7p:<\/strong> Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p, c\u00f4ng t\u1eafc nhi\u1ec7t qu\u1ea3n l\u00fd nhi\u1ec7t \u0111\u1ed9 trong c\u00e1c qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 b\u1ea3o qu\u1ea3n s\u1ea3n ph\u1ea9m.<\/li>\n<\/ul>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>C\u00f4ng t\u1eafc nhi\u1ec7t t\u1ef1 \u0111\u1ed9ng h\u00f3a \u0111i\u1ec1u khi\u1ec3n l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 quan tr\u1ecdng trong vi\u1ec7c duy tr\u00ec v\u00e0 ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau. Nh\u1edd v\u00e0o c\u1ea5u t\u1ea1o v\u00e0 c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng \u0111\u01a1n gi\u1ea3n nh\u01b0ng hi\u1ec7u qu\u1ea3, ch\u00fang \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t k\u1ef9 thu\u1eadt hi\u1ec7n \u0111\u1ea1i.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00f4ng t\u1eafc nhi\u1ec7t t\u1ef1 \u0111\u1ed9ng h\u00f3a \u0111i\u1ec1u khi\u1ec3n nh\u01b0 th\u1ebf n\u00e0o: T\u00ecm hi\u1ec3u c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a c\u00f4ng t\u1eafc nhi\u1ec7t trong h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 t\u1ef1 \u0111\u1ed9ng.<\/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 - 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