{"id":30129,"date":"2025-11-22T06:01:45","date_gmt":"2025-11-22T06:01:45","guid":{"rendered":"https:\/\/stecvina.com\/?post_type=solution&p=30129"},"modified":"2026-01-29T09:15:56","modified_gmt":"2026-01-29T09:15:56","slug":"dong-ho-ap-luc-kem-tiep-diem-giam-sat-sfs-pg42s-giai-phap-giam-sat-ap-suat-an-toan-cho-he-thong-chua-chay-khi","status":"publish","type":"solution","link":"https:\/\/stecvina.com\/en\/solution\/dong-ho-ap-luc-kem-tiep-diem-giam-sat-sfs-pg42s-giai-phap-giam-sat-ap-suat-an-toan-cho-he-thong-chua-chay-khi\/","title":{"rendered":"\u0110\u1ed3ng H\u1ed3 \u00c1p L\u1ef1c K\u00e8m Ti\u1ebfp \u0110i\u1ec3m Gi\u00e1m S\u00e1t SFS-PG42S \u2013 Gi\u1ea3i Ph\u00e1p Gi\u00e1m S\u00e1t \u00c1p Su\u1ea5t An To\u00e0n Cho H\u1ec7 Th\u1ed1ng Ch\u1eefa Ch\u00e1y Kh\u00ed"},"content":{"rendered":"

Trong c\u00e1c h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y b\u1eb1ng kh\u00ed nh\u01b0 HFC-227ea, FK-5-1-12 hay IG-100, IG-541 \u00e1p su\u1ea5t trong b\u00ecnh ch\u1ee9a l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh \u0111\u1ebfn hi\u1ec7u qu\u1ea3 v\u1eadn h\u00e0nh c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng. \u00c1p su\u1ea5t qu\u00e1 th\u1ea5p c\u00f3 th\u1ec3 khi\u1ebfn h\u1ec7 th\u1ed1ng kh\u00f4ng k\u00edch ho\u1ea1t \u0111\u00fang chu\u1ea9n; \u00e1p su\u1ea5t qu\u00e1 cao l\u1ea1i g\u00e2y nguy hi\u1ec3m trong qu\u00e1 tr\u00ecnh l\u01b0u tr\u1eef v\u00e0 v\u1eadn h\u00e0nh. Ch\u00ednh v\u00ec v\u1eady, vi\u1ec7c gi\u00e1m s\u00e1t \u00e1p su\u1ea5t b\u00ecnh kh\u00ed<\/strong> l\u00e0 y\u00eau c\u1ea7u b\u1eaft bu\u1ed9c trong m\u1ecdi ti\u00eau chu\u1ea9n thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y t\u1ef1 \u0111\u1ed9ng.<\/p>\n\n\n\n

M\u1ed9t trong nh\u1eefng thi\u1ebft b\u1ecb quan tr\u1ecdng \u0111\u1ea3m nhi\u1ec7m ch\u1ee9c n\u0103ng n\u00e0y ch\u00ednh l\u00e0 \u0111\u1ed3ng h\u1ed3 \u00e1p l\u1ef1c k\u00e8m ti\u1ebfp \u0111i\u1ec3m gi\u00e1m s\u00e1t<\/strong> SFS-PG42S<\/strong>. L\u00e0 s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1edd thi\u1ebft k\u1ebf th\u00f4ng minh, \u0111\u1ed9 b\u1ec1n cao v\u00e0 kh\u1ea3 n\u0103ng k\u1ebft h\u1ee3p gi\u00e1m s\u00e1t tr\u1ef1c quan l\u1eabn t\u1eeb xa. <\/p>\n\n\n\n

1. T\u1ea1i sao c\u1ea7n gi\u00e1m s\u00e1t \u00e1p su\u1ea5t trong h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y kh\u00ed?<\/strong><\/h2>\n\n\n\n

C\u00e1c h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y t\u1ef1 \u0111\u1ed9ng b\u1eb1ng kh\u00ed d\u1eadp l\u1eeda d\u1ef1a tr\u00ean nguy\u00ean l\u00fd gi\u1ea3m n\u1ed3ng \u0111\u1ed9 oxy ho\u1eb7c h\u1ea5p th\u1ee5 nhi\u1ec7t \u0111\u1ec3 d\u1eadp t\u1eaft \u0111\u00e1m ch\u00e1y m\u00e0 kh\u00f4ng g\u00e2y h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb, \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p cho ph\u00f2ng server, trung t\u00e2m d\u1eef li\u1ec7u, ph\u00f2ng \u0111i\u1ec7n, ph\u00f2ng \u0111i\u1ec1u khi\u1ec3n, kho h\u00e0ng c\u00f3 gi\u00e1 tr\u1ecb cao\u2026<\/p>\n\n\n\n

Tuy nhi\u00ean, hi\u1ec7u qu\u1ea3 c\u1ee7a h\u1ec7 th\u1ed1ng ph\u1ee5 thu\u1ed9c tr\u1ef1c ti\u1ebfp v\u00e0o l\u01b0\u1ee3ng kh\u00ed ch\u1ee9a trong b\u00ecnh<\/strong>. Khi b\u00ecnh kh\u00ed b\u1ecb r\u00f2 r\u1ec9 ho\u1eb7c t\u1ee5t \u00e1p:<\/p>\n\n\n\n

    \n
  • H\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 kh\u00f4ng x\u1ea3 \u0111\u1ee7 kh\u00ed \u0111\u1ec3 d\u1eadp l\u1eeda.<\/li>\n\n\n\n
  • \u00c1p su\u1ea5t th\u1ea5p l\u00e0m sai l\u1ec7ch th\u1eddi gian phun kh\u00ed.<\/li>\n\n\n\n
  • H\u1ec7 th\u1ed1ng k\u00edch ho\u1ea1t nh\u01b0ng hi\u1ec7u qu\u1ea3 d\u1eadp ch\u00e1y gi\u1ea3m m\u1ea1nh.<\/li>\n\n\n\n
  • Nguy c\u01a1 \u0111\u00e1m ch\u00e1y lan r\u1ed9ng ho\u1eb7c t\u00e1i ch\u00e1y sau khi phun.<\/li>\n<\/ul>\n\n\n\n

    \u0110\u00e2y l\u00e0 l\u00fd do t\u1ea5t c\u1ea3 c\u00e1c c\u00f4ng tr\u00ecnh s\u1eed d\u1ee5ng kh\u00ed s\u1ea1ch \u0111\u1ec1u \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u gi\u00e1m s\u00e1t \u00e1p su\u1ea5t li\u00ean t\u1ee5c<\/strong>. Vi\u1ec7c n\u00e0y gi\u00fap ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9 s\u1edbm, x\u1eed l\u00fd k\u1ecbp th\u1eddi v\u00e0 \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng lu\u00f4n trong tr\u1ea1ng th\u00e1i s\u1eb5n s\u00e0ng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n

    2. \u0110\u1ed3ng h\u1ed3 \u00e1p l\u1ef1c k\u00e8m ti\u1ebfp \u0111i\u1ec3m gi\u00e1m s\u00e1t l\u00e0 g\u00ec?<\/strong><\/h2>\n\n\n\n

    \u0110\u1ed3ng h\u1ed3 \u00e1p l\u1ef1c th\u00f4ng th\u01b0\u1eddng ch\u1ec9 cho ph\u00e9p k\u1ef9 thu\u1eadt vi\u00ean quan s\u00e1t m\u1ee9c \u00e1p su\u1ea5t tr\u1ef1c ti\u1ebfp b\u1eb1ng m\u1eaft. Tuy nhi\u00ean, v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng quan tr\u1ecdng, y\u00eau c\u1ea7u gi\u00e1m s\u00e1t t\u1eeb xa lu\u00f4n \u0111\u01b0\u1ee3c \u0111\u1eb7t ra.<\/p>\n\n\n\n

    \u0110\u1ed3ng h\u1ed3 \u00e1p l\u1ef1c k\u00e8m ti\u1ebfp \u0111i\u1ec3m gi\u00e1m s\u00e1t<\/strong> l\u00e0 thi\u1ebft b\u1ecb k\u1ebft h\u1ee3p hai ch\u1ee9c n\u0103ng:<\/p>\n\n\n\n

      \n
    1. \u0110o v\u00e0 hi\u1ec3n th\u1ecb \u00e1p su\u1ea5t th\u1ef1c t\u1ebf<\/strong> c\u1ee7a b\u00ecnh ch\u1ee9a kh\u00ed.<\/li>\n\n\n\n
    2. G\u1eedi t\u00edn hi\u1ec7u c\u1ea3nh b\u00e1o<\/strong> v\u1ec1 t\u1ee7 \u0111i\u1ec1u khi\u1ec3n khi \u00e1p su\u1ea5t gi\u1ea3m xu\u1ed1ng d\u01b0\u1edbi m\u1ee9c an to\u00e0n cho ph\u00e9p.<\/li>\n<\/ol>\n\n\n\n

      Ti\u1ebfp \u0111i\u1ec3m gi\u00e1m s\u00e1t n\u00e0y th\u01b0\u1eddng l\u00e0 ti\u1ebfp \u0111i\u1ec3m kh\u00f4ng \u0111i\u1ec7n \u00e1p<\/strong>, c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng k\u1ebft n\u1ed1i v\u1edbi c\u00e1c t\u1ee7 trung t\u00e2m, t\u1ee7 Actuator Cabinet ho\u1eb7c h\u1ec7 th\u1ed1ng c\u1ea3nh b\u00e1o gi\u00e1m s\u00e1t c\u1ee7a c\u00f4ng tr\u00ecnh.<\/p>\n\n\n\n

      3. Gi\u1edbi thi\u1ec7u v\u1ec1 SFS-PG42S \u2013 \u0110\u1ed3ng h\u1ed3 \u00e1p l\u1ef1c t\u00edch h\u1ee3p ti\u1ebfp \u0111i\u1ec3m gi\u00e1m s\u00e1t<\/strong><\/h2>\n\n\n\n

      SFS-PG42S<\/strong> l\u00e0 d\u00f2ng \u0111\u1ed3ng h\u1ed3 \u00e1p su\u1ea5t bourdon \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p ti\u1ebfp \u0111i\u1ec3m c\u1ea3nh b\u00e1o, thi\u1ebft k\u1ebf chuy\u00ean bi\u1ec7t cho b\u00ecnh kh\u00ed trong c\u00e1c h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y t\u1ef1 \u0111\u1ed9ng. \u0110\u00e2y l\u00e0 thi\u1ebft b\u1ecb quan tr\u1ecdng trong b\u1ed9 ph\u1ee5 ki\u1ec7n \u00e1p su\u1ea5t, gi\u00fap ki\u1ec3m so\u00e1t t\u00ecnh tr\u1ea1ng kh\u00ed s\u1ea1ch trong su\u1ed1t v\u00f2ng \u0111\u1eddi s\u1eed d\u1ee5ng c\u1ee7a b\u00ecnh.<\/p>\n\n\n\n

      3.1 Thi\u1ebft k\u1ebf bourdon b\u1ec1n b\u1ec9<\/strong><\/h3>\n\n\n\n

      SFS-PG42S s\u1eed d\u1ee5ng c\u01a1 c\u1ea5u bourdon, lo\u1ea1i c\u1ea5u tr\u00fac ph\u1ed5 bi\u1ebfn v\u00e0 \u1ed5n \u0111\u1ecbnh nh\u1ea5t hi\u1ec7n nay trong ng\u00e0nh \u0111o \u00e1p su\u1ea5t. Bourdon ho\u1ea1t \u0111\u1ed9ng theo nguy\u00ean l\u00fd bi\u1ebfn d\u1ea1ng c\u01a1 h\u1ecdc khi \u00e1p su\u1ea5t thay \u0111\u1ed5i, t\u1eeb \u0111\u00f3 truy\u1ec1n chuy\u1ec3n \u0111\u1ed9ng \u0111\u1ebfn kim \u0111\u1ed3ng h\u1ed3 \u0111\u1ec3 hi\u1ec3n th\u1ecb tr\u1ecb s\u1ed1 ch\u00ednh x\u00e1c.<\/p>\n\n\n\n

      \u01afu \u0111i\u1ec3m c\u1ee7a c\u01a1 c\u1ea5u bourdon:<\/p>\n\n\n\n

        \n
      • \u0110\u1ed9 b\u1ec1n cao<\/li>\n\n\n\n
      • Ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh trong th\u1eddi gian d\u00e0i<\/li>\n\n\n\n
      • \u00cdt sai s\u1ed1<\/li>\n\n\n\n
      • Kh\u1ea3 n\u0103ng ch\u1ecbu \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t<\/li>\n<\/ul>\n\n\n\n

        3.2 Gi\u00e1m s\u00e1t \u00e1p su\u1ea5t b\u1eb1ng hai ph\u01b0\u01a1ng th\u1ee9c<\/strong><\/h3>\n\n\n\n

        SFS-PG42S mang l\u1ea1i hai c\u00e1ch gi\u00e1m s\u00e1t \u00e1p su\u1ea5t:<\/p>\n\n\n\n

        \u25cf Gi\u00e1m s\u00e1t tr\u1ef1c quan:<\/strong>
        Ng\u01b0\u1eddi v\u1eadn h\u00e0nh c\u00f3 th\u1ec3 quan s\u00e1t tr\u1ef1c ti\u1ebfp kim \u0111\u1ed3ng h\u1ed3 \u0111\u1ec3 bi\u1ebft \u00e1p su\u1ea5t hi\u1ec7n t\u1ea1i c\u1ee7a b\u00ecnh kh\u00ed.<\/p>\n\n\n\n

        \u25cf Gi\u00e1m s\u00e1t t\u1eeb xa qua ti\u1ebfp \u0111i\u1ec3m:<\/strong>
        Khi \u00e1p su\u1ea5t gi\u1ea3m xu\u1ed1ng m\u1ee9c c\u1ea3nh b\u00e1o, ti\u1ebfp \u0111i\u1ec3m kh\u00f4ng \u0111i\u1ec7n \u00e1p s\u1ebd thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i (\u0111\u00f3ng\/m\u1edf), truy\u1ec1n t\u00edn hi\u1ec7u v\u1ec1 t\u1ee7 trung t\u00e2m \u0111\u1ec3 c\u1ea3nh b\u00e1o cho k\u1ef9 thu\u1eadt vi\u00ean.<\/p>\n\n\n\n

        \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t li\u00ean t\u1ee5c ngay c\u1ea3 khi k\u1ef9 thu\u1eadt vi\u00ean kh\u00f4ng c\u00f3 m\u1eb7t t\u1ea1i v\u1ecb tr\u00ed \u0111\u1eb7t b\u00ecnh kh\u00ed.<\/p>\n\n\n\n

        4. C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ti\u1ebfp \u0111i\u1ec3m gi\u00e1m s\u00e1t SFS-PG42S<\/strong><\/h2>\n\n\n\n

        \u0110i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a s\u1ea3n ph\u1ea9m n\u00e0y l\u00e0 v\u1ea1ch ch\u1ec9 th\u1ecb m\u00e0u \u0111\u1ecf<\/strong> \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t s\u1eb5n tr\u00ean m\u1eb7t \u0111\u1ed3ng h\u1ed3. V\u1ea1ch \u0111\u1ecf t\u01b0\u01a1ng \u1ee9ng m\u1ee9c \u00e1p su\u1ea5t gi\u1ea3m 5% so v\u1edbi \u00e1p su\u1ea5t l\u00e0m vi\u1ec7c ti\u00eau chu\u1ea9n<\/strong> c\u1ee7a b\u00ecnh.<\/p>\n\n\n\n

        Khi \u00e1p su\u1ea5t kh\u00ed gi\u1ea3m v\u00e0 kim \u0111\u1ed3ng h\u1ed3 ch\u1ea1m v\u00e0o v\u00f9ng c\u1ea3nh b\u00e1o \u0111\u1ecf:<\/p>\n\n\n\n

          \n
        • \u0110\u1ed3ng h\u1ed3 c\u1ea3nh b\u00e1o tr\u1ef1c quan t\u1ea1i ch\u1ed7.<\/li>\n\n\n\n
        • \u0110\u1ed3ng th\u1eddi, ti\u1ebfp \u0111i\u1ec3m l\u1eadp t\u1ee9c k\u00edch ho\u1ea1t t\u00edn hi\u1ec7u g\u1eedi v\u1ec1 t\u1ee7 \u0111i\u1ec1u khi\u1ec3n.<\/li>\n<\/ul>\n\n\n\n

          Nh\u1edd \u0111\u00f3, c\u00f4ng tr\u00ecnh c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c t\u00ecnh tr\u1ea1ng b\u1ea5t th\u01b0\u1eddng nh\u01b0:<\/p>\n\n\n\n

            \n
          • R\u00f2 r\u1ec9 kh\u00ed<\/li>\n\n\n\n
          • Van x\u1ea3 b\u1ecb m\u1ea5t k\u00edn<\/li>\n\n\n\n
          • L\u1ed7i n\u1ea1p kh\u00ed<\/li>\n\n\n\n
          • B\u00ecnh b\u1ecb t\u00e1c \u0111\u1ed9ng c\u01a1 h\u1ecdc g\u00e2y gi\u1ea3m \u00e1p<\/li>\n<\/ul>\n\n\n\n

            K\u1ef9 thu\u1eadt vi\u00ean ch\u1ec9 c\u1ea7n ki\u1ec3m tra t\u00edn hi\u1ec7u trong t\u1ee7 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ec3 bi\u1ebft b\u00ecnh kh\u00ed n\u00e0o c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o d\u01b0\u1ee1ng ho\u1eb7c n\u1ea1p l\u1ea1i.<\/p>\n\n\n\n

            5. Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a SFS-PG42S<\/strong><\/h2>\n\n\n\n
            Th\u00f4ng s\u1ed1<\/th>Gi\u00e1 tr\u1ecb<\/th><\/tr><\/thead>
            D\u1ea3i \u0111o \u00e1p su\u1ea5t<\/strong><\/td>0 \u2013 100 bar<\/td><\/tr>
            C\u1ea5p ch\u00ednh x\u00e1c<\/strong><\/td>2.5<\/td><\/tr>
            Ki\u1ec3u c\u01a1 c\u1ea5u<\/strong><\/td>Bourdon<\/td><\/tr>
            Nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng <\/strong><\/td>-20 \u2026 +60 \u00b0C<\/td><\/tr>
            Th\u00e0nh ph\u1ea7n \u00e1p l\u01b0c<\/strong><\/td>H\u1ee3p kim \u0111\u1ed3ng<\/td><\/tr>
            Ti\u00eau chu\u1ea9n thi\u1ebft k\u1ebf<\/strong><\/td>EN 837-1<\/td><\/tr>
            C\u1ea5p \u0111\u1ed9 b\u1ea3o v\u1ec7<\/strong><\/td>IP41 theo EN 60529 \/ lEC 529<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
            \"\"<\/figure>\n\n\n\n

            <\/h2>\n\n\n\n

            \u0110\u1ed3ng h\u1ed3 \u00e1p l\u1ef1c k\u00e8m ti\u1ebfp \u0111i\u1ec3m gi\u00e1m s\u00e1t SFS-PG42S<\/strong> l\u00e0 thi\u1ebft b\u1ecb kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00e1c h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y kh\u00ed hi\u1ec7n \u0111\u1ea1i. V\u1edbi kh\u1ea3 n\u0103ng gi\u00e1m s\u00e1t k\u00e9p, \u0111\u1ed9 ch\u00ednh x\u00e1c cao v\u00e0 kh\u1ea3 n\u0103ng c\u1ea3nh b\u00e1o s\u1edbm khi \u00e1p su\u1ea5t b\u1ea5t th\u01b0\u1eddng, s\u1ea3n ph\u1ea9m g\u00f3p ph\u1ea7n \u0111\u1ea3m b\u1ea3o an to\u00e0n cho c\u00f4ng tr\u00ecnh, gi\u1ea3m thi\u1ec3u r\u1ee7i ro v\u00e0 n\u00e2ng cao hi\u1ec7u qu\u1ea3 ph\u00f2ng ch\u00e1y ch\u1eefa ch\u00e1y.<\/p>\n\n\n\n

            N\u1ebfu b\u1ea1n c\u1ea7n b\u00e1o gi\u00e1, t\u01b0 v\u1ea5n k\u1ef9 thu\u1eadt ho\u1eb7c h\u1ed7 tr\u1ee3 l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb ph\u00f9 h\u1ee3p cho h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y kh\u00ed, h\u00e3y li\u00ean h\u1ec7 v\u1edbi S-TEC VINA<\/strong> \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 nhanh ch\u00f3ng v\u00e0 ch\u00ednh x\u00e1c.<\/p>\n\n\n\n

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