{"id":673893,"date":"2024-08-21T12:11:07","date_gmt":"2024-08-21T11:11:07","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=673893"},"modified":"2024-08-21T12:11:07","modified_gmt":"2024-08-21T11:11:07","slug":"cong-tac-nhiet-bao-ve-mach-dien-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/cong-tac-nhiet-bao-ve-mach-dien-nhu-the-nao\/","title":{"rendered":"C\u00f4ng t\u1eafc nhi\u1ec7t b\u1ea3o v\u1ec7 m\u1ea1ch \u0111i\u1ec7n nh\u01b0 th\u1ebf n\u00e0o"},"content":{"rendered":"<p class=\"sidekick\">C\u00f4ng t\u1eafc nhi\u1ec7t b\u1ea3o v\u1ec7 m\u1ea1ch \u0111i\u1ec7n nh\u01b0 th\u1ebf n\u00e0o: Gi\u1ea3i th\u00edch c\u00e1ch c\u00f4ng t\u1eafc nhi\u1ec7t ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 ng\u0103n ng\u1eeba qu\u00e1 nhi\u1ec7t v\u00e0 b\u1ea3o v\u1ec7 m\u1ea1ch \u0111i\u1ec7n kh\u1ecfi h\u01b0 h\u1ecfng.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/cong_tac_nhiet_bao_ve_mach_dien_nhu_the_nao.png\" alt=\"C\u00f4ng t\u1eafc nhi\u1ec7t b\u1ea3o v\u1ec7 m\u1ea1ch \u0111i\u1ec7n nh\u01b0 th\u1ebf n\u00e0o\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>C\u00f4ng t\u1eafc nhi\u1ec7t b\u1ea3o v\u1ec7 m\u1ea1ch \u0111i\u1ec7n 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 nhi\u1ec1u m\u1ea1ch \u0111i\u1ec7n, c\u00f3 ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 m\u1ea1ch kh\u1ecfi hi\u1ec7n t\u01b0\u1ee3ng qu\u00e1 nhi\u1ec7t v\u00e0 ng\u0103n ng\u1eeba c\u00e1c nguy c\u01a1 h\u1ecfng h\u00f3c ho\u1eb7c ch\u00e1y n\u1ed5. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc, s\u1eed d\u1ee5ng s\u1ef1 gi\u00e3n n\u1edf v\u00e0 co r\u00fat c\u1ee7a v\u1eadt li\u1ec7u \u0111\u1ec3 ng\u1eaft m\u1ea1ch \u0111i\u1ec7n khi nhi\u1ec7t \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng cho ph\u00e9p.<\/p>\n<h2>C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00f4ng t\u1eafc nhi\u1ec7t<\/h2>\n<p>C\u00f4ng t\u1eafc nhi\u1ec7t th\u01b0\u1eddng g\u1ed3m hai ph\u1ea7n ch\u00ednh: m\u1ed9t ph\u1ea7n c\u1ea3m bi\u1ebfn nhi\u1ec7t v\u00e0 m\u1ed9t ph\u1ea7n c\u00f4ng t\u1eafc c\u01a1 h\u1ecdc. Ph\u1ea7n c\u1ea3m bi\u1ebfn th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb bimetal (hai kim lo\u1ea1i kh\u00e1c nhau gh\u00e9p l\u1ea1i) ho\u1eb7c ch\u1ea5t li\u1ec7u b\u00e1n d\u1eabn c\u00f3 \u0111\u1eb7c t\u00ednh nhi\u1ec7t \u0111\u1ed9 thay \u0111\u1ed5i. Khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng l\u00ean, v\u1eadt li\u1ec7u n\u00e0y s\u1ebd gi\u00e3n n\u1edf ho\u1eb7c co r\u00fat, l\u00e0m cho c\u00f4ng t\u1eafc c\u01a1 h\u1ecdc di chuy\u1ec3n v\u00e0 ng\u1eaft m\u1ea1ch \u0111i\u1ec7n.<\/p>\n<ul>\n<li>Trong c\u00e1c c\u00f4ng t\u1eafc nhi\u1ec7t s\u1eed d\u1ee5ng bimetal, c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean s\u1ef1 gi\u00e3n n\u1edf kh\u00e1c nhau c\u1ee7a hai kim lo\u1ea1i kh\u00e1c nhau g\u00e2y ra m\u1ed9t l\u1ef1c u\u1ed1n cong. Khi nhi\u1ec7t \u0111\u1ed9 \u0111\u1ea1t \u0111\u1ebfn m\u1ed9t m\u1ee9c \u0111\u1ed9 x\u00e1c \u0111\u1ecbnh, l\u1ef1c u\u1ed1n n\u00e0y s\u1ebd \u0111\u1ee7 l\u1edbn \u0111\u1ec3 ng\u1eaft m\u1ea1ch \u0111i\u1ec7n.<\/li>\n<li>C\u00e1c c\u00f4ng t\u1eafc nhi\u1ec7t b\u00e1n d\u1eabn th\u00ec d\u1ef1a tr\u00ean s\u1ef1 thay \u0111\u1ed5i t\u00ednh d\u1eabn \u0111i\u1ec7n c\u1ee7a ch\u1ea5t li\u1ec7u theo nhi\u1ec7t \u0111\u1ed9. Khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng, \u0111i\u1ec7n tr\u1edf c\u1ee7a ch\u1ea5t b\u00e1n d\u1eabn gi\u1ea3m, \u0111i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn vi\u1ec7c ng\u1eaft m\u1ea1ch \u0111i\u1ec7n khi nhi\u1ec7t \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 m\u1ee9c cho ph\u00e9p.<\/li>\n<\/ul>\n<h2>L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng c\u00f4ng t\u1eafc nhi\u1ec7t<\/h2>\n<p>S\u1eed d\u1ee5ng c\u00f4ng t\u1eafc nhi\u1ec7t trong m\u1ea1ch \u0111i\u1ec7n mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch quan tr\u1ecdng:<\/p>\n<ol>\n<li>B\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb kh\u1ecfi hi\u1ec7n t\u01b0\u1ee3ng qu\u00e1 nhi\u1ec7t, k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n.<\/li>\n<li>Ng\u0103n ng\u1eeba nguy c\u01a1 ch\u00e1y n\u1ed5 do qu\u00e1 nhi\u1ec7t.<\/li>\n<li>C\u1ea3nh b\u00e1o k\u1ecbp th\u1eddi v\u1ec1 t\u00ecnh tr\u1ea1ng qu\u00e1 t\u1ea3i nhi\u1ec7t, gi\u00fap ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c v\u1ea5n \u0111\u1ec1 trong m\u1ea1ch \u0111i\u1ec7n.<\/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 thi\u1ebft b\u1ecb v\u00e0 h\u1ec7 th\u1ed1ng kh\u00e1c nhau:<\/p>\n<ul>\n<li>C\u00f4ng ngh\u1ec7 \u0111i\u1ec7n t\u1eed: b\u1ea3o v\u1ec7 c\u00e1c th\u00e0nh ph\u1ea7n nh\u1ea1y c\u1ea3m nh\u01b0 CPU, GPU kh\u1ecfi qu\u00e1 nhi\u1ec7t.<\/li>\n<li>H\u1ec7 th\u1ed1ng \u0111i\u1ec7n c\u00f4ng nghi\u1ec7p: b\u1ea3o v\u1ec7 m\u00e1y bi\u1ebfn \u00e1p, \u0111\u1ed9ng c\u01a1 v\u00e0 thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p kh\u00e1c.<\/li>\n<li>Thi\u1ebft b\u1ecb gia d\u1ee5ng: m\u00e1y s\u1ea5y t\u00f3c, l\u00f2 vi s\u00f3ng, m\u00e1y gi\u1eb7t, v\u00e0 nhi\u1ec1u thi\u1ebft b\u1ecb gia d\u1ee5ng kh\u00e1c.<\/li>\n<\/ul>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>C\u00f4ng t\u1eafc nhi\u1ec7t l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong nhi\u1ec1u m\u1ea1ch \u0111i\u1ec7n, gi\u00fap b\u1ea3o v\u1ec7 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed v\u00e0 c\u00f4ng nghi\u1ec7p kh\u1ecfi nguy c\u01a1 qu\u00e1 nhi\u1ec7t. V\u1edbi nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng \u0111\u01a1n gi\u1ea3n nh\u01b0ng hi\u1ec7u qu\u1ea3, c\u00f4ng t\u1eafc nhi\u1ec7t kh\u00f4ng ch\u1ec9 gi\u00fap k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a thi\u1ebft b\u1ecb m\u00e0 c\u00f2n \u0111\u1ea3m b\u1ea3o an to\u00e0n cho ng\u01b0\u1eddi s\u1eed d\u1ee5ng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00f4ng t\u1eafc nhi\u1ec7t b\u1ea3o v\u1ec7 m\u1ea1ch \u0111i\u1ec7n nh\u01b0 th\u1ebf n\u00e0o: Gi\u1ea3i th\u00edch c\u00e1ch c\u00f4ng t\u1eafc nhi\u1ec7t ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 ng\u0103n ng\u1eeba qu\u00e1 nhi\u1ec7t v\u00e0 b\u1ea3o v\u1ec7 m\u1ea1ch \u0111i\u1ec7n kh\u1ecfi h\u01b0 h\u1ecfng.<\/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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