{"id":558,"date":"2026-07-20T06:02:27","date_gmt":"2026-07-20T06:02:27","guid":{"rendered":"https:\/\/n2-compressor.com\/?post_type=product&p=558"},"modified":"2026-08-13T06:59:00","modified_gmt":"2026-08-13T06:59:00","slug":"dw-100-8-nitrogen-compressor","status":"publish","type":"product","link":"https:\/\/n2-compressor.com\/vi\/san-pham\/dw-100-8-nitrogen-compressor\/","title":{"rendered":"M\u00e1y n\u00e9n kh\u00ed nit\u01a1 DW-100\/8 \u2013 M\u00e1y t\u0103ng \u00e1p N2 kh\u00f4ng d\u1ea7u c\u00f4ng su\u1ea5t c\u1ef1c cao d\u00e0nh cho c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng kh\u00ed c\u00f4ng nghi\u1ec7p \u0111\u00f2i h\u1ecfi cao."},"content":{"rendered":"
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M\u00e1y n\u00e9n kh\u00ed nit\u01a1 DW-100\/8 \u2013 M\u00e1y t\u0103ng \u00e1p N2 kh\u00f4ng d\u1ea7u c\u00f4ng su\u1ea5t c\u1ef1c cao d\u00e0nh cho c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng kh\u00ed c\u00f4ng nghi\u1ec7p \u0111\u00f2i h\u1ecfi cao.<\/h1>\n

\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 cung c\u1ea5p l\u01b0u l\u01b0\u1ee3ng 100 m\u00b3\/ph\u00fat \u1edf \u00e1p su\u1ea5t x\u1ea3 0,80 MPa, DW-100\/8 l\u00e0 m\u00e1y n\u00e9n kh\u00ed nit\u01a1 piston hai c\u1ea5p, hai h\u00e0ng kh\u00f4ng d\u1ea7u \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o chuy\u00ean d\u1ee5ng cho c\u00e1c h\u1ec7 th\u1ed1ng t\u00e1ch kh\u00ed \u0111\u00f4ng l\u1ea1nh quy m\u00f4 l\u1edbn, c\u00e1c tr\u1ea1m t\u0103ng \u00e1p VPSA \u00e1p su\u1ea5t cao v\u00e0 c\u00e1c m\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i \u0111\u01b0\u1eddng \u1ed1ng h\u00f3a d\u1ea7u quan tr\u1ecdng. Kh\u00f4ng g\u00e2y \u00f4 nhi\u1ec5m ch\u1ea5t b\u00f4i tr\u01a1n, ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c v\u00e0 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady c\u00f4ng nghi\u1ec7p 24\/7 \u1edf c\u00f4ng su\u1ea5t l\u01b0u l\u01b0\u1ee3ng cao nh\u1ea5t.<\/p>\n

Y\u00eau c\u1ea7u b\u00e1o gi\u00e1<\/a>
\nXem d\u00f2ng m\u00e1y n\u00e9n N2<\/a><\/div>\n

\"DW-100\/8<\/p>\n<\/div>\n

<\/p>\n

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T\u1ed5ng quan s\u1ea3n ph\u1ea9m<\/h2>\n

C\u00e1i M\u00e1y n\u00e9n kh\u00ed nit\u01a1 DW-100\/8<\/strong> S\u1ea3n ph\u1ea9m n\u00e0y \u0111\u1ea1i di\u1ec7n cho \u0111\u1ec9nh cao trong k\u1ef9 thu\u1eadt ch\u1ebf t\u1ea1o m\u00e1y n\u00e9n piston kh\u00f4ng d\u1ea7u c\u1ee7a ch\u00fang t\u00f4i, chi\u1ebfm l\u0129nh ph\u00e2n kh\u00fac c\u00f4ng su\u1ea5t c\u1ef1c cao trong danh m\u1ee5c s\u1ea3n ph\u1ea9m t\u0103ng \u00e1p nit\u01a1 c\u00f4ng nghi\u1ec7p c\u1ee7a ch\u00fang t\u00f4i. V\u1edbi hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i C\u00f4ng su\u1ea5t 100 m\u00b3\/ph\u00fat<\/strong> k\u1ebft h\u1ee3p v\u1edbi m\u1ed9t h\u1ec7 th\u1ed1ng m\u1ea1nh m\u1ebd \u00c1p su\u1ea5t x\u1ea3 0,80 MPa<\/strong>Thi\u1ebft b\u1ecb n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u ph\u00e2n ph\u1ed1i nit\u01a1 kh\u1eaft khe nh\u1ea5t trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng kh\u00ed c\u00f4ng nghi\u1ec7p quy m\u00f4 l\u1edbn tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/p>\n

\u0110i\u1ec1u c\u01a1 b\u1ea3n l\u00e0m n\u00ean s\u1ef1 kh\u00e1c bi\u1ec7t c\u1ee7a DW-100\/8 so v\u1edbi t\u1ea5t c\u1ea3 c\u00e1c l\u1ef1a ch\u1ecdn thay th\u1ebf th\u00f4ng th\u01b0\u1eddng l\u00e0... \u0111\u01b0\u1eddng d\u1eabn n\u00e9n ho\u00e0n to\u00e0n kh\u00f4ng d\u1ea7u<\/strong>C\u00e1c v\u00f2ng piston v\u00e0 v\u00f2ng d\u1eabn h\u01b0\u1edbng \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb v\u1eadt li\u1ec7u composite PTFE t\u1ef1 b\u00f4i tr\u01a1n \u0111\u1ed9c quy\u1ec1n, ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n b\u1ea5t k\u1ef3 ch\u1ea5t b\u00f4i tr\u01a1n hydrocarbon n\u00e0o. C\u1ea5u tr\u00fac kh\u00f4ng d\u1ea7u v\u1ed1n c\u00f3 n\u00e0y \u0111\u1ea3m b\u1ea3o d\u00f2ng s\u1ea3n ph\u1ea9m nit\u01a1 ho\u00e0n to\u00e0n kh\u00f4ng b\u1ecb nhi\u1ec5m b\u1ea9n, \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 t\u1ed1i \u01b0u. Ch\u1ee9ng nh\u1eadn ISO 8573-1 Lo\u1ea1i 0<\/strong> kh\u00f4ng c\u1ea7n b\u1ea5t k\u1ef3 thi\u1ebft b\u1ecb l\u1ecdc n\u00e0o \u1edf kh\u00e2u sau. \u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 v\u1eadn h\u00e0nh trong ng\u00e0nh ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, s\u1ea3n xu\u1ea5t d\u01b0\u1ee3c ph\u1ea9m, ch\u1ebf t\u1ea1o \u0111i\u1ec7n t\u1eed v\u00e0 ch\u1ebf bi\u1ebfn h\u00f3a d\u1ea7u, \u0111i\u1ec1u n\u00e0y gi\u00fap lo\u1ea1i b\u1ecf c\u1ea3 chi ph\u00ed \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u v\u00e0 g\u00e1nh n\u1eb7ng v\u1eadn h\u00e0nh li\u00ean t\u1ee5c c\u1ee7a h\u1ec7 th\u1ed1ng l\u1ecdc d\u1ea7u.<\/p>\n

M\u00e1y n\u00e9n s\u1eed d\u1ee5ng m\u1ed9t hai giai \u0111o\u1ea1n, hai h\u00e0ng<\/strong> C\u1ea5u h\u00ecnh n\u00e0y t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c ph\u00e2n b\u1ed5 t\u1ef7 l\u1ec7 \u00e1p su\u1ea5t \u0111\u00e1ng k\u1ec3 gi\u1eefa hai xi lanh n\u00e9n. Ph\u01b0\u01a1ng ph\u00e1p nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc theo t\u1eebng giai \u0111o\u1ea1n n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 qu\u1ea3n l\u00fd t\u1ea3i nhi\u1ec7t v\u1ed1n c\u00f3 \u1edf \u00e1p su\u1ea5t x\u1ea3 0,80 MPa trong khi v\u1eabn duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n v\u1ec1 k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c ph\u1ea7n t\u1eed l\u00e0m k\u00edn PTFE. M\u1ed7i giai \u0111o\u1ea1n t\u00edch h\u1ee3p m\u1ed9t b\u1ed9 l\u00e0m m\u00e1t trung gian hi\u1ec7u su\u1ea5t cao \u0111\u1ed9c l\u1eadp, \u0111\u1ea3m b\u1ea3o nhi\u1ec7t \u0111\u1ed9 kh\u00ed lu\u00f4n n\u1eb1m trong gi\u1edbi h\u1ea1n ho\u1ea1t \u0111\u1ed9ng an to\u00e0n ngay c\u1ea3 trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh li\u00ean t\u1ee5c \u1edf c\u00f4ng su\u1ea5t t\u1ed1i \u0111a. Khung gang \u0111\u00fac ch\u1eafc ch\u1eafn v\u00e0 tr\u1ee5c khu\u1ef7u th\u00e9p r\u00e8n c\u00e2n b\u1eb1ng \u0111\u1ed9ng \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 c\u00f3 tu\u1ed5i th\u1ecd s\u1eed d\u1ee5ng \u0111\u1eb7c bi\u1ec7t cao. H\u01a1n 120.000 gi\u1edd<\/strong> theo c\u00e1c quy tr\u00ecnh b\u1ea3o tr\u00ec c\u00f4ng nghi\u1ec7p nghi\u00eam ng\u1eb7t.<\/p>\n

\"DW-100\/8<\/p>\n<\/div>\n

<\/p>\n

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Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u2013 DW-100\/8<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Tham s\u1ed1<\/th>\nGi\u00e1 tr\u1ecb<\/th>\n\u0110\u01a1n v\u1ecb<\/th>\n<\/tr>\n<\/thead>\n
Ng\u01b0\u1eddi m\u1eabu<\/td>\nDW-100\/8<\/td>\n\u2013<\/td>\n<\/tr>\n
M\u1eabu<\/td>\nHai giai \u0111o\u1ea1n, hai h\u00e0ng (\u4e8c\u5217\u4e8c\u7ea7)<\/td>\n\u2013<\/td>\n<\/tr>\n
Dung t\u00edch<\/td>\n100<\/td>\nm\u00b3\/ph\u00fat<\/td>\n<\/tr>\n
\u00c1p su\u1ea5t x\u1ea3<\/td>\n0.80<\/td>\nMPa<\/td>\n<\/tr>\n
K\u00edch th\u01b0\u1edbc m\u00e1y n\u00e9n (D\u00e0i \u00d7 R\u1ed9ng \u00d7 Cao)<\/td>\n5456 \u00d7 3518 \u00d7 2535<\/td>\nmm<\/td>\n<\/tr>\n
C\u00e2n n\u1eb7ng<\/td>\n13.00<\/td>\nt<\/td>\n<\/tr>\n
Quy\u1ec1n l\u1ef1c<\/td>\n600<\/td>\nkW<\/td>\n<\/tr>\n
\u0110i\u1ec7n \u00e1p<\/td>\n6 ngh\u00ecn ho\u1eb7c 10 ngh\u00ecn<\/td>\nV<\/td>\n<\/tr>\n
M\u00f4i tr\u01b0\u1eddng kh\u00ed<\/td>\nNit\u01a1 (N\u2082)<\/td>\n\u2013<\/td>\n<\/tr>\n
B\u00f4i tr\u01a1n<\/td>\nKh\u00f4ng d\u1ea7u<\/td>\n\u2013<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* T\u1ea5t c\u1ea3 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 theo \u0111i\u1ec1u ki\u1ec7n tham chi\u1ebfu ti\u00eau chu\u1ea9n (ISO 1217, Ph\u1ee5 l\u1ee5c C). Hi\u1ec7u su\u1ea5t th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ed9 cao c\u1ee7a \u0111\u1ecba \u0111i\u1ec3m, nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 \u0111i\u1ec1u ki\u1ec7n \u0111\u1ea7u v\u00e0o.<\/em><\/p>\n<\/div>\n

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C\u00e1c t\u00ednh n\u0103ng ch\u00ednh v\u00e0 \u01b0u \u0111i\u1ec3m k\u1ef9 thu\u1eadt<\/h2>\n

1. N\u00e9n kh\u00f4ng d\u1ea7u c\u00f4ng su\u1ea5t c\u1ef1c cao<\/h3>\n

M\u00e1y DW-100\/8 s\u1eed d\u1ee5ng m\u1ed9t c\u00f4ng ngh\u1ec7 \u0111\u1ed9c quy\u1ec1n. H\u1ec7 th\u1ed1ng v\u00f2ng piston t\u1ef1 b\u00f4i tr\u01a1n v\u00e0 \u0111ai d\u1eabn \u0111\u1ed9ng<\/strong> \u0110\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb v\u1eadt li\u1ec7u composite PTFE ti\u00ean ti\u1ebfn \u0111\u01b0\u1ee3c gia c\u01b0\u1eddng b\u1eb1ng s\u1ee3i th\u1ee7y tinh v\u00e0 c\u00e1c h\u1ea1t \u0111\u1ed3ng. C\u00f4ng th\u1ee9c v\u1eadt li\u1ec7u n\u00e0y \u0111\u1ea1t \u0111\u01b0\u1ee3c h\u1ec7 s\u1ed1 ma s\u00e1t d\u01b0\u1edbi 0,06 m\u00e0 kh\u00f4ng c\u1ea7n b\u1ea5t k\u1ef3 ch\u1ea5t b\u00f4i tr\u01a1n hydrocarbon b\u00ean ngo\u00e0i n\u00e0o, lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n nguy c\u01a1 h\u01a1i d\u1ea7u l\u1eabn v\u00e0o d\u00f2ng s\u1ea3n ph\u1ea9m nit\u01a1. V\u1edbi c\u00f4ng su\u1ea5t 100 m\u00b3\/ph\u00fat, ngay c\u1ea3 m\u1ed9t l\u01b0\u1ee3ng d\u1ea7u nh\u1ecf b\u1ecb nhi\u1ec5m b\u1ea9n c\u0169ng s\u1ebd g\u00e2y ra s\u1ef1 c\u1ed1 ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam tr\u1ecdng. \u0110\u1eb7c t\u00ednh v\u1ed1n c\u00f3 c\u1ee7a DW-100\/8 l\u00e0 kh\u1ea3 n\u0103ng x\u1eed l\u00fd ma s\u00e1t tuy\u1ec7t v\u1eddi. Tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n ISO 8573-1 Lo\u1ea1i 0<\/strong> Lo\u1ea1i b\u1ecf nhu c\u1ea7u v\u1ec1 thi\u1ebft b\u1ecb l\u1ecdc d\u1ea7u \u1edf ph\u00eda h\u1ea1 l\u01b0u, v\u1ed1n s\u1ebd c\u00f3 k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd kh\u1ed5ng l\u1ed3 v\u00e0 ti\u00eau t\u1ed1n nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng \u1edf quy m\u00f4 l\u01b0u l\u01b0\u1ee3ng n\u00e0y. C\u00e1c v\u00f2ng PTFE \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho nhi\u1ec7t \u0111\u1ed9 x\u1ea3 cao li\u00ean quan \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng \u1edf \u00e1p su\u1ea5t 0,80 MPa, duy tr\u00ec \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc l\u00ean \u0111\u1ebfn 180\u00b0C.<\/p>\n

2. T\u1ed1i \u01b0u h\u00f3a nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc hai giai \u0111o\u1ea1n cho \u00e1p su\u1ea5t cao<\/h3>\n

C\u00e1i ki\u1ebfn tr\u00fac n\u00e9n hai giai \u0111o\u1ea1n<\/strong> M\u00e1y n\u00e9n DW-100\/8 \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a v\u1ec1 m\u1eb7t nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc \u0111\u1ec3 \u0111\u00e1p \u1ee9ng m\u1ee5c ti\u00eau \u00e1p su\u1ea5t x\u1ea3 kh\u1eaft khe 0,80 MPa. B\u1eb1ng c\u00e1ch chia t\u1ef7 l\u1ec7 \u00e1p su\u1ea5t t\u1ed5ng th\u1ec3 \u0111\u00e1ng k\u1ec3 gi\u1eefa xi lanh \u00e1p su\u1ea5t th\u1ea5p c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u1edbn v\u00e0 xi lanh \u00e1p su\u1ea5t cao, m\u00e1y n\u00e9n \u0111\u1ea1t \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 hi\u1ec7u d\u1ee5ng trung b\u00ecnh tr\u00ean m\u1ed7i t\u1ea7ng th\u1ea5p h\u01a1n \u0111\u00e1ng k\u1ec3. B\u1ed9 l\u00e0m m\u00e1t trung gian d\u1ea1ng \u1ed1ng l\u1ed3ng hi\u1ec7u su\u1ea5t cao gi\u1eefa c\u00e1c t\u1ea7ng gi\u00fap lo\u1ea1i b\u1ecf nhi\u1ec7t l\u01b0\u1ee3ng sinh ra trong qu\u00e1 tr\u00ecnh n\u00e9n, duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 x\u1ea3 d\u01b0\u1edbi 155\u00b0C ngay c\u1ea3 \u1edf t\u1ea3i tr\u1ecdng li\u00ean t\u1ee5c t\u1ed1i \u0111a. Vi\u1ec7c qu\u1ea3n l\u00fd nhi\u1ec7t n\u00e0y c\u1ef1c k\u1ef3 quan tr\u1ecdng \u0111\u1ec3 b\u1ea3o to\u00e0n t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a v\u00f2ng PTFE \u1edf c\u00f4ng su\u1ea5t v\u00e0 \u00e1p su\u1ea5t n\u00e0y, \u0111\u1ed3ng th\u1eddi k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a t\u1ea5m van kho\u1ea3ng 40% so v\u1edbi c\u00e1c thi\u1ebft k\u1ebf m\u1ed9t t\u1ea7ng c\u1ed1 g\u1eafng \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 \u00e1p su\u1ea5t t\u01b0\u01a1ng \u0111\u01b0\u01a1ng.<\/p>\n

3. Khung gang \u0111\u00fac nguy\u00ean kh\u1ed1i v\u1edbi k\u1ef9 thu\u1eadt c\u00e2n b\u1eb1ng l\u1ef1c<\/h3>\n

Khung ch\u00ednh \u0111\u01b0\u1ee3c \u0111\u00fac t\u1eeb... Gang \u0111\u00fac m\u00e0u x\u00e1m GG25<\/strong> (t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi ASTM A48 Lo\u1ea1i 30B) v\u1edbi c\u00e1c \u0111\u01b0\u1eddng d\u1eabn n\u01b0\u1edbc l\u00e0m m\u00e1t t\u00edch h\u1ee3p. b\u1ed1 tr\u00ed xi-lanh \u0111\u1ed1i x\u1ee9ng hai h\u00e0ng<\/strong> Cung c\u1ea5p kh\u1ea3 n\u0103ng tri\u1ec7t ti\u00eau l\u1ef1c b\u1eadc nh\u1ea5t t\u1ef1 nhi\u00ean, gi\u1ea3m l\u1ef1c qu\u00e1n t\u00ednh kh\u00f4ng c\u00e2n b\u1eb1ng truy\u1ec1n xu\u1ed1ng m\u00f3ng h\u01a1n 80% so v\u1edbi c\u00e1c thi\u1ebft k\u1ebf m\u1ed9t h\u00e0ng. M\u1eb7c d\u00f9 tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a thi\u1ebft b\u1ecb kh\u00e1 l\u1edbn, l\u00ean t\u1edbi 13,00 t\u1ea5n, nh\u01b0ng l\u1ee3i th\u1ebf c\u01a1 h\u1ecdc n\u00e0y cho ph\u00e9p l\u1eafp \u0111\u1eb7t tr\u00ean kh\u1ed1i b\u00ea t\u00f4ng c\u1ed1t th\u00e9p ch\u1ecbu l\u1ef1c kho\u1ea3ng 20 t\u1ea5n \u2014 nh\u1eb9 h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi y\u00eau c\u1ea7u \u0111\u1ed1i v\u1edbi m\u00e1y n\u00e9n m\u1ed9t h\u00e0ng c\u00f3 c\u00f4ng su\u1ea5t t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. K\u00edch th\u01b0\u1edbc khung l\u1edbn c\u1ee7a 5456 \u00d7 3518 \u00d7 2535 mm<\/strong> Ph\u1ea3n \u00e1nh c\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt \u0111\u1ec3 x\u1eed l\u00fd l\u01b0u l\u01b0\u1ee3ng 100 m\u00b3\/ph\u00fat \u0111\u1ed3ng th\u1eddi duy tr\u00ec khe h\u1edf ch\u00ednh x\u00e1c c\u1ea7n thi\u1ebft cho ho\u1ea1t \u0111\u1ed9ng piston kh\u00f4ng c\u1ea7n d\u1ea7u b\u00f4i tr\u01a1n.<\/p>\n

4. B\u1ed9 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n \u00e1p trung b\u00ecnh c\u00f4ng su\u1ea5t cao<\/h3>\n

DW-100\/8 \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1edfi m\u1ed9t \u0110\u1ed9ng c\u01a1 c\u1ea3m \u1ee9ng trung th\u1ebf 600 kW<\/strong> C\u00f3 s\u1eb5n c\u1ea5u h\u00ecnh 6kV ho\u1eb7c 10kV, tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n IEC 60034-1 c\u1ea5p hi\u1ec7u su\u1ea5t IE3. \u1ede m\u1ee9c c\u00f4ng su\u1ea5t n\u00e0y, h\u1ec7 th\u1ed1ng truy\u1ec1n \u0111\u1ed9ng \u0111i\u1ec7n \u00e1p trung b\u00ecnh kh\u00f4ng ch\u1ec9 \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng m\u00e0 c\u00f2n l\u00e0 thi\u1ebft y\u1ebfu. M\u1ed9t \u0111\u1ed9ng c\u01a1 380V s\u1ebd y\u00eau c\u1ea7u k\u00edch th\u01b0\u1edbc c\u00e1p kh\u00f4ng th\u1ef1c t\u1ebf (v\u01b0\u1ee3t qu\u00e1 ti\u1ebft di\u1ec7n 400 mm\u00b2) v\u00e0 thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft \u0111i\u1ec7n \u00e1p th\u1ea5p c\u1ed3ng k\u1ec1nh. C\u1ea5u h\u00ecnh 6kV ho\u1eb7c 10kV t\u00edch h\u1ee3p tr\u1ef1c ti\u1ebfp v\u00e0o m\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i \u0111i\u1ec7n \u00e1p trung b\u00ecnh c\u00f4ng nghi\u1ec7p, gi\u1ea3m chi ph\u00ed c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111i\u1ec7n, gi\u1ea3m thi\u1ec3u t\u1ed5n th\u1ea5t I\u00b2R trong c\u00e1p \u0111i\u1ec7n v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng t\u1ed5ng th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng. \u0110\u1ed1i v\u1edbi c\u00e1c c\u01a1 s\u1edf c\u00f4ng nghi\u1ec7p quy m\u00f4 l\u1edbn n\u01a1i h\u1ec7 th\u1ed1ng bus 6kV ho\u1eb7c 10kV l\u00e0 ti\u00eau chu\u1ea9n, DW-100\/8 cung c\u1ea5p kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u0111i\u1ec7n li\u1ec1n m\u1ea1ch.<\/p>\n

\"DW-100\/8<\/p>\n<\/div>\n

<\/p>\n

\n

C\u00e1c k\u1ecbch b\u1ea3n \u1ee9ng d\u1ee5ng<\/h2>\n

C\u00e1c nh\u00e0 m\u00e1y t\u00e1ch kh\u00ed b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00f4ng l\u1ea1nh quy m\u00f4 l\u1edbn<\/h3>\n

Trong c\u00e1c c\u01a1 s\u1edf ASU \u0111\u00f4ng l\u1ea1nh quy m\u00f4 l\u1edbn s\u1ea3n xu\u1ea5t 5.000\u201315.000 Nm\u00b3\/gi\u1edd kh\u00ed nit\u01a1, DW-100\/8 \u0111\u00f3ng vai tr\u00f2 l\u00e0... b\u1ed9 t\u0103ng \u00e1p nit\u01a1 c\u00f4ng su\u1ea5t cao ch\u00ednh<\/strong> Gi\u1eefa h\u1ed9p l\u00e0m l\u1ea1nh v\u00e0 \u0111\u1ea7u ph\u00e2n ph\u1ed1i. C\u00f4ng su\u1ea5t 100 m\u00b3\/ph\u00fat c\u1ee7a n\u00f3 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi s\u1ea3n l\u01b0\u1ee3ng c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i kh\u00ed t\u1ef1 \u0111\u1ed9ng (ASU) \u0111\u01a1n tuy\u1ebfn l\u1edbn nh\u1ea5t, trong khi \u00e1p su\u1ea5t x\u1ea3 0,80 MPa cung c\u1ea5p \u0111\u1ee7 c\u1ed9t \u00e1p cho vi\u1ec7c ph\u00e2n ph\u1ed1i \u0111\u01b0\u1eddng \u1ed1ng \u0111\u01b0\u1eddng d\u00e0i \u0111\u1ebfn ng\u01b0\u1eddi ti\u00eau d\u00f9ng \u1edf h\u1ea1 l\u01b0u trong c\u00e1c khu c\u00f4ng nghi\u1ec7p r\u1ed9ng l\u1edbn. Thi\u1ebft k\u1ebf kh\u00f4ng d\u1ea7u l\u00e0 c\u1ef1c k\u1ef3 quan tr\u1ecdng trong c\u00e1c \u1ee9ng d\u1ee5ng n\u00e0y v\u00ec b\u1ea5t k\u1ef3 s\u1ef1 nhi\u1ec5m b\u1ea9n d\u1ea7u n\u00e0o c\u0169ng s\u1ebd l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 tinh khi\u1ebft c\u1ee7a nit\u01a1 tr\u00ean to\u00e0n b\u1ed9 m\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn nhi\u1ec1u quy tr\u00ecnh h\u1ea1 l\u01b0u bao g\u1ed3m s\u1ea3n xu\u1ea5t ch\u1ea5t b\u00e1n d\u1eabn, s\u1ea3n xu\u1ea5t d\u01b0\u1ee3c ph\u1ea9m v\u00e0 c\u00e1c c\u01a1 s\u1edf ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m \u0111\u01b0\u1ee3c ph\u1ee5c v\u1ee5 b\u1edfi c\u00f9ng m\u1ed9t \u0111\u1ea7u ph\u00e2n ph\u1ed1i.<\/p>\n

\"DW-100\/8<\/p>\n

Tr\u1ea1m t\u0103ng \u00e1p nit\u01a1 VPSA c\u1ee1 l\u1edbn<\/h3>\n

\u0110\u1ed1i v\u1edbi c\u00e1c m\u00e1y t\u1ea1o kh\u00ed nit\u01a1 VPSA c\u1ee1 l\u1edbn s\u1ea3n xu\u1ea5t kh\u00ed nit\u01a1 c\u00f3 \u0111\u1ed9 tinh khi\u1ebft 99,5\u201399,9% \u1edf \u00e1p su\u1ea5t g\u1ea7n b\u1eb1ng \u00e1p su\u1ea5t kh\u00ed quy\u1ec3n, th\u00ec... B\u1ed9 t\u0103ng \u00e1p nit\u01a1 DW-100\/8<\/a> M\u00e1y n\u00e9n n\u00e0y n\u00e9n s\u1ea3n ph\u1ea9m \u00e1p su\u1ea5t th\u1ea5p xu\u1ed1ng 0,80 MPa \u0111\u1ec3 ph\u00e2n ph\u1ed1i \u00e1p su\u1ea5t cao kh\u1eafp c\u00e1c khu c\u00f4ng nghi\u1ec7p r\u1ed9ng l\u1edbn. C\u00f4ng su\u1ea5t 100 m\u00b3\/ph\u00fat c\u00f3 th\u1ec3 ph\u1ee5c v\u1ee5 \u0111\u1ed3ng th\u1eddi nhi\u1ec1u d\u00e2y chuy\u1ec1n VPSA l\u1edbn ho\u1eb7c cung c\u1ea5p d\u1ef1 ph\u00f2ng cho c\u00e1c h\u1ec7 th\u1ed1ng cung c\u1ea5p nit\u01a1 quan tr\u1ecdng. Quy tr\u00ecnh n\u00e9n kh\u00f4ng d\u1ea7u l\u00e0 \u0111i\u1ec1u b\u1eaft bu\u1ed9c trong d\u1ecbch v\u1ee5 VPSA v\u00ec s\u1ef1 nhi\u1ec5m b\u1ea9n hydrocarbon s\u1ebd l\u00e0m h\u1ecfng v\u0129nh vi\u1ec5n ch\u1ea5t h\u1ea5p ph\u1ee5 s\u00e0ng ph\u00e2n t\u1eed carbon, l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 t\u00e1ch tr\u00ean to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng m\u00e1y ph\u00e1t v\u00e0 \u0111\u00f2i h\u1ecfi ph\u1ea3i thay th\u1ebf ch\u1ea5t h\u1ea5p ph\u1ee5 t\u1ed1n k\u00e9m, c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 $200.000 \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng l\u1edbn.<\/p>\n

Ph\u00e2n ph\u1ed1i kh\u00ed nit\u01a1 \u00e1p su\u1ea5t cao trong khu ph\u1ee9c h\u1ee3p h\u00f3a d\u1ea7u<\/h3>\n

Trong c\u00e1c khu ph\u1ee9c h\u1ee3p h\u00f3a d\u1ea7u t\u00edch h\u1ee3p, DW-100\/8 \u0111\u00f3ng vai tr\u00f2 x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a h\u1ec7 th\u1ed1ng. c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng ph\u00e2n ph\u1ed1i nit\u01a1 \u00e1p su\u1ea5t cao<\/strong>\u00c1p su\u1ea5t x\u1ea3 0,80 MPa \u0111\u1ee7 \u0111\u1ec3 kh\u1eafc ph\u1ee5c t\u1ed5n th\u1ea5t ma s\u00e1t \u0111\u01b0\u1eddng \u1ed1ng tr\u00ean c\u00e1c m\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i d\u00e0i nhi\u1ec1u kilomet, ph\u1ee5c v\u1ee5 h\u00e0ng ch\u1ee5c \u0111\u01a1n v\u1ecb x\u1eed l\u00fd bao g\u1ed3m c\u00e1c nh\u00e0 m\u00e1y cracking ethylene, l\u00f2 ph\u1ea3n \u1ee9ng polyethylene, khu ph\u1ee9c h\u1ee3p s\u1ea3n xu\u1ea5t ch\u1ea5t th\u01a1m v\u00e0 c\u00e1c \u0111\u01a1n v\u1ecb thu h\u1ed3i l\u01b0u hu\u1ef3nh. C\u00f4ng su\u1ea5t 100 m\u00b3\/ph\u00fat c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u nit\u01a1 \u0111\u1ed3ng th\u1eddi t\u1eeb nhi\u1ec1u \u0111\u01a1n v\u1ecb x\u1eed l\u00fd trong qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng, t\u1eaft m\u00e1y v\u00e0 c\u00e1c quy tr\u00ecnh l\u00e0m tr\u01a1 kh\u1ea9n c\u1ea5p. Ch\u1ee9ng nh\u1eadn kh\u00f4ng d\u1ea7u l\u00e0 b\u1eaft bu\u1ed9c v\u00ec nit\u01a1 ti\u1ebfp x\u00fac v\u1edbi c\u00e1c l\u1edbp ch\u1ea5t x\u00fac t\u00e1c, \u0111i v\u00e0o c\u00e1c d\u00f2ng ch\u1ea3y c\u1ee7a quy tr\u00ecnh v\u00e0 cung c\u1ea5p l\u1edbp ph\u1ee7 cho kho ch\u1ee9a h\u00f3a ch\u1ea5t nh\u1ea1y c\u1ea3m - t\u1ea5t c\u1ea3 \u0111\u1ec1u ph\u1ea3i ho\u00e0n to\u00e0n kh\u00f4ng ch\u1ee9a hydrocarbon.<\/p>\n

\"DW-100\/8<\/p>\n

Cung c\u1ea5p Nit\u01a1 cho Tr\u1ea1m H\u00f3a l\u1ecfng v\u00e0 T\u00e1i kh\u00ed h\u00f3a LNG<\/h3>\n

C\u00e1c nh\u00e0 ga LNG c\u1ea7n m\u1ed9t l\u01b0\u1ee3ng l\u1edbn nit\u01a1 \u0111\u1ec3 v\u1eadn h\u00e0nh. S\u00fac r\u1eeda \u0111\u01b0\u1eddng \u1ed1ng, l\u00e0m tr\u01a1 b\u1ec3 ch\u1ee9a v\u00e0 b\u01a1m nit\u01a1 kh\u1ea9n c\u1ea5p<\/strong> v\u00e0o c\u00e1c b\u1ec3 ch\u1ee9a \u0111\u00f4ng l\u1ea1nh. C\u00f4ng su\u1ea5t 100 m\u00b3\/ph\u00fat c\u1ee7a DW-100\/8 c\u00f3 th\u1ec3 duy tr\u00ec ngu\u1ed3n cung c\u1ea5p nit\u01a1 trong c\u00e1c k\u1ecbch b\u1ea3n v\u1eadn h\u00e0nh kh\u1eaft khe nh\u1ea5t, bao g\u1ed3m c\u1ea3 c\u00e1c ho\u1ea1t \u0111\u1ed9ng x\u1ea3 nit\u01a1 to\u00e0n b\u1ed9 nh\u00e0 ga c\u00f3 th\u1ec3 y\u00eau c\u1ea7u nit\u01a1 l\u01b0u l\u01b0\u1ee3ng cao li\u00ean t\u1ee5c trong v\u00e0i ng\u00e0y. \u00c1p su\u1ea5t x\u1ea3 0,80 MPa cung c\u1ea5p \u0111\u1ee7 c\u1ed9t \u00e1p \u0111\u1ec3 kh\u1eafc ph\u1ee5c \u00e1p su\u1ea5t th\u1ee7y t\u0129nh c\u1ee7a c\u00e1c b\u1ec3 ch\u1ee9a LNG v\u00e0 duy tr\u00ec \u00e1p su\u1ea5t kh\u00ed tr\u01a1 d\u01b0\u01a1ng trong to\u00e0n b\u1ed9 m\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i c\u1ee7a nh\u00e0 ga. Thi\u1ebft k\u1ebf kh\u00f4ng d\u1ea7u ng\u0103n ng\u1eeba s\u1ef1 nhi\u1ec5m b\u1ea9n hydrocarbon v\u00e0o s\u1ea3n ph\u1ea9m LNG, \u0111i\u1ec1u n\u00e0y s\u1ebd l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c \u0111\u1eb7c t\u00ednh \u0111\u00f4ng l\u1ea1nh v\u00e0 vi ph\u1ea1m c\u00e1c ti\u00eau chu\u1ea9n ch\u1ea5t l\u01b0\u1ee3ng LNG.<\/p>\n<\/div>\n

<\/p>\n

\n

V\u1eadt li\u1ec7u & X\u00e2y d\u1ef1ng<\/h2>\n

M\u00e1y b\u01a1m DW-100\/8 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb c\u00e1c v\u1eadt li\u1ec7u cao c\u1ea5p \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn k\u1ef9 l\u01b0\u1ee1ng v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi nit\u01a1, ho\u1ea1t \u0111\u1ed9ng \u1edf \u00e1p su\u1ea5t cao v\u00e0 tu\u1ed5i th\u1ecd v\u1eadn h\u00e0nh k\u00e9o d\u00e0i \u1edf c\u00f4ng su\u1ea5t c\u1ef1c cao:<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Th\u00e0nh ph\u1ea7n<\/th>\nV\u1eadt li\u1ec7u<\/th>\nTh\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/th>\n<\/tr>\n<\/thead>\n
Kh\u1ed1i xi lanh<\/td>\nGang x\u00e1m<\/td>\nGG25 \/ HT250, \u00e1o n\u01b0\u1edbc l\u00e0m m\u00e1t t\u00edch h\u1ee3p<\/td>\n<\/tr>\n
Tr\u1ee5c khu\u1ef7u<\/td>\nTh\u00e9p h\u1ee3p kim r\u00e8n<\/td>\n42CrMo4, Q&T, ISO 1940 G2.5 c\u00e2n b\u1eb1ng \u0111\u1ed9ng<\/td>\n<\/tr>\n
V\u00f2ng piston<\/td>\nV\u1eadt li\u1ec7u composite PTFE-Th\u1ee7y tinh-\u0110\u1ed3ng<\/td>\nT\u1ef1 b\u00f4i tr\u01a1n, ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao l\u00ean \u0111\u1ebfn 180\u00b0C.<\/td>\n<\/tr>\n
C\u00e1c ban nh\u1ea1c Rider<\/td>\nH\u1ee3p ch\u1ea5t PTFE<\/td>\nH\u1ec7 th\u1ed1ng d\u1eabn h\u01b0\u1edbng piston, ch\u1ed1ng tr\u1ea7y x\u01b0\u1edbc, t\u1ef7 l\u1ec7 m\u00e0i m\u00f2n <0,04 mm\/1000 gi\u1edd.<\/td>\n<\/tr>\n
T\u1ea5m van<\/td>\nTh\u00e9p kh\u00f4ng g\u1ec9<\/td>\nSS316, thi\u1ebft k\u1ebf l\u00f2 xo v\u00f2ng \u0111\u1ed3ng t\u00e2m<\/td>\n<\/tr>\n
Thanh truy\u1ec1n<\/td>\nTh\u00e9p r\u00e8n v\u1edbi \u1ed5 tr\u1ee5c Babbitt<\/td>\n\u0110\u1ea7u l\u1edbn \u0111\u01b0\u1ee3c gia c\u00f4ng ch\u00ednh x\u00e1c, b\u00f4i tr\u01a1n b\u1eb1ng d\u1ea7u<\/td>\n<\/tr>\n
B\u1ed9 l\u00e0m m\u00e1t kh\u00ed n\u1ea1p<\/td>\nV\u1ecf th\u00e9p carbon \/ \u1ed0ng th\u00e9p kh\u00f4ng g\u1ec9 SS316<\/td>\nTh\u1eed nghi\u1ec7m th\u1ee7y l\u1ef1c ASME VIII Div.1, 1,5\u00d7, gi\u1eef trong 30 ph\u00fat.<\/td>\n<\/tr>\n
B\u1ed9 l\u00e0m m\u00e1t sau<\/td>\nV\u1ecf th\u00e9p carbon \/ \u1ed0ng th\u00e9p kh\u00f4ng g\u1ec9 SS316<\/td>\nThi\u1ebft k\u1ebf \u1ed1ng c\u00f3 c\u00e1nh t\u1ea3n nhi\u1ec7t, nhi\u1ec7t \u0111\u1ed9 n\u01b0\u1edbc l\u00e0m m\u00e1t \u0111\u1ecbnh m\u1ee9c 32\u00b0C.<\/td>\n<\/tr>\n
Khung \u0111\u1ebf<\/td>\nTh\u00e9p k\u1ebft c\u1ea5u<\/td>\nK\u1ebft c\u1ea5u h\u00e0n, t\u1ea5m \u0111\u1ec7m gi\u1ea3m rung<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

T\u1ea5t c\u1ea3 c\u00e1c b\u1ed9 ph\u1eadn ch\u1ecbu \u00e1p l\u1ef1c \u0111\u1ec1u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u00e0 ch\u1ebf t\u1ea1o theo \u0111\u00fang ti\u00eau chu\u1ea9n. ASME BPVC Ph\u1ea7n VIII Ph\u00e2n khu 1<\/strong> ho\u1eb7c ti\u00eau chu\u1ea9n GB 150 c\u1ee7a Trung Qu\u1ed1c. M\u1ed7i m\u1ed1i h\u00e0n \u0111\u1ec1u tr\u1ea3i qua ki\u1ec3m tra ch\u1ee5p X-quang (RT) theo ti\u00eau chu\u1ea9n ASME M\u1ee5c V, \u0110i\u1ec1u 2, v\u00e0 m\u1ed7i b\u00ecnh \u00e1p l\u1ef1c ho\u00e0n ch\u1ec9nh \u0111\u1ec1u \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m \u00e1p su\u1ea5t th\u1ee7y t\u0129nh \u1edf m\u1ee9c 1,5 l\u1ea7n \u00e1p su\u1ea5t l\u00e0m vi\u1ec7c t\u1ed1i \u0111a cho ph\u00e9p (MAWP) trong th\u1eddi gian gi\u1eef t\u1ed1i thi\u1ec3u 30 ph\u00fat.<\/p>\n

\"DW-100\/8<\/p>\n<\/div>\n

<\/p>\n

\n

H\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec<\/h2>\n

Y\u00eau c\u1ea7u v\u1ec1 n\u1ec1n m\u00f3ng v\u00e0 k\u1ebft c\u1ea5u<\/h3>\n

M\u00e1y khoan DW-100\/8 c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng kh\u00f4 l\u00e0 13,00 t\u1ea5n v\u00e0 tr\u1ecdng t\u00e2m n\u1eb1m c\u00e1ch \u0111\u1ebf kho\u1ea3ng 1.000 mm. M\u1eb7c d\u00f9 c\u00f3 k\u00edch th\u01b0\u1edbc \u0111\u1ed3 s\u1ed9, thi\u1ebft k\u1ebf hai h\u00e0ng xi lanh \u0111\u1ed1i x\u1ee9ng gi\u00fap gi\u1ea3m thi\u1ec3u l\u1ef1c kh\u00f4ng c\u00e2n b\u1eb1ng, cho ph\u00e9p l\u1eafp \u0111\u1eb7t tr\u00ean b\u1ec1 m\u1eb7t ph\u1eb3ng. Kh\u1ed1i b\u00ea t\u00f4ng c\u1ed1t th\u00e9p qu\u00e1n t\u00ednh n\u1eb7ng 20\u201325 t\u1ea5n<\/strong>Kh\u1ed1i m\u00e1y n\u00e9n ph\u1ea3i \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u00ean c\u00e1c b\u1ed9 gi\u1ea3m ch\u1ea5n rung \u0111\u1ed9ng \u0111\u00e0n h\u1ed3i ch\u1ecbu t\u1ea3i n\u1eb7ng (t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean 5\u20137 Hz) \u0111\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 truy\u1ec1n rung \u0111\u1ed9ng \u0111\u1ebfn c\u00e1c c\u1ea5u tr\u00fac li\u1ec1n k\u1ec1 v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng nh\u1ea1y c\u1ea3m. Y\u00eau c\u1ea7u v\u1ec1 kho\u1ea3ng c\u00e1ch t\u1ed1i thi\u1ec3u: 2,0 m \u1edf ph\u00eda kh\u00f4ng truy\u1ec1n \u0111\u1ed9ng \u0111\u1ec3 ti\u1ebfp c\u1eadn van, 1,5 m \u1edf ph\u00eda truy\u1ec1n \u0111\u1ed9ng \u0111\u1ec3 b\u1ea3o tr\u00ec \u0111\u1ed9ng c\u01a1 v\u00e0 2,5 m ph\u00eda tr\u00ean \u0111\u1ec3 c\u1ea7n c\u1ea9u ti\u1ebfp c\u1eadn trong qu\u00e1 tr\u00ecnh \u0111\u1ea1i tu l\u1edbn. V\u1edbi k\u00edch th\u01b0\u1edbc c\u1ee7a thi\u1ebft b\u1ecb l\u00e0 5456 \u00d7 3518 mm, nh\u00e0 m\u00e1y n\u00e9n ph\u1ea3i c\u00f3 \u0111\u1ee7 kho\u1ea3ng c\u00e1ch th\u00f4ng tho\u00e1ng \u1edf t\u1ea5t c\u1ea3 c\u00e1c ph\u00eda \u0111\u1ec3 v\u1eadn h\u00e0nh v\u00e0 b\u1ea3o tr\u00ec an to\u00e0n.<\/p>\n

Thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng n\u01b0\u1edbc l\u00e0m m\u00e1t<\/h3>\n

Nhu c\u1ea7u n\u01b0\u1edbc l\u00e0m m\u00e1t x\u1ea5p x\u1ec9 100 m\u00b3\/h<\/strong> \u1edf nhi\u1ec7t \u0111\u1ed9 n\u01b0\u1edbc \u0111\u1ea7u v\u00e0o kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 32\u00b0C. M\u1ea1ch ph\u00e2n ph\u1ed1i n\u01b0\u1edbc cung c\u1ea5p n\u01b0\u1edbc cho \u00e1o xi lanh, b\u1ed9 l\u00e0m m\u00e1t trung gian v\u00e0 b\u1ed9 l\u00e0m m\u00e1t sau b\u1eb1ng c\u00e1c nh\u00e1nh song song v\u1edbi c\u00e1c van \u0111i\u1ec1u khi\u1ec3n l\u01b0u l\u01b0\u1ee3ng ri\u00eang bi\u1ec7t. Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc: pH 6,5\u20138,5, t\u1ed5ng ch\u1ea5t r\u1eafn h\u00f2a tan < 500 mg\/L, h\u00e0m l\u01b0\u1ee3ng clorua < 50 mg\/L (\u0111\u1ec3 ng\u0103n ng\u1eeba \u0103n m\u00f2n \u1ed1ng SS316 trong b\u1ed9 l\u00e0m m\u00e1t), ch\u1ea5t r\u1eafn l\u01a1 l\u1eedng < 30 mg\/L v\u00e0 t\u1ed5ng \u0111\u1ed9 c\u1ee9ng < 300 mg\/L t\u00ednh theo CaCO\u2083. Do nhu c\u1ea7u n\u01b0\u1edbc l\u00e0m m\u00e1t r\u1ea5t l\u1edbn, n\u00ean r\u1ea5t khuy\u1ebfn ngh\u1ecb s\u1eed d\u1ee5ng th\u00e1p gi\u1ea3i nhi\u1ec7t kh\u00e9p k\u00edn chuy\u00ean d\u1ee5ng v\u1edbi h\u1ec7 th\u1ed1ng l\u1ecdc d\u00f2ng ph\u1ee5, x\u1eed l\u00fd h\u00f3a h\u1ecdc v\u00e0 b\u1ec3 ch\u1ee9a \u0111\u1ec7m 10 m\u00b3. H\u1ec7 th\u1ed1ng n\u01b0\u1edbc l\u00e0m m\u00e1t ph\u1ea3i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u1ef1 ph\u00f2ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c trong qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec th\u00e1p gi\u1ea3i nhi\u1ec7t.<\/p>\n

L\u1ecbch tr\u00ecnh b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Kho\u1ea3ng th\u1eddi gian<\/th>\nM\u1ee5c d\u1ecbch v\u1ee5<\/th>\nC\u1ea7n h\u00e0nh \u0111\u1ed9ng<\/th>\n<\/tr>\n<\/thead>\n
H\u1eb1ng ng\u00e0y<\/td>\nKi\u1ec3m tra v\u1eadn h\u00e0nh<\/td>\nKi\u1ec3m tra m\u1ee9c \u0111\u1ed9 rung, ti\u1ebfng \u1ed3n b\u1ea5t th\u01b0\u1eddng, l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc l\u00e0m m\u00e1t, nhi\u1ec7t \u0111\u1ed9 n\u01b0\u1edbc th\u1ea3i, d\u00f2ng \u0111i\u1ec7n \u0111\u1ed9ng c\u01a1.<\/td>\n<\/tr>\n
250 gi\u1edd<\/td>\nKi\u1ec3m tra t\u1ea5m van<\/td>\nTh\u00e1o v\u00e0 ki\u1ec3m tra c\u00e1c van h\u00fat\/x\u1ea3 xem c\u00f3 c\u1eb7n carbon, hi\u1ec7n t\u01b0\u1ee3ng m\u1ecfi l\u00f2 xo ho\u1eb7c n\u1ee9t v\u1ee1 kh\u00f4ng.<\/td>\n<\/tr>\n
1.000 gi\u1edd<\/td>\n\u0110\u00e1nh gi\u00e1 \u0111\u1ed9 m\u00e0i m\u00f2n v\u00f2ng piston<\/td>\n\u0110o khe h\u1edf r\u00e3nh v\u00f2ng; thay th\u1ebf v\u00f2ng n\u1ebfu khe h\u1edf v\u01b0\u1ee3t qu\u00e1 0,25 mm.<\/td>\n<\/tr>\n
4.000 gi\u1edd<\/td>\n\u0110\u1ea1i tu trung c\u1ea5p<\/td>\nThay th\u1ebf to\u00e0n b\u1ed9 v\u00f2ng piston, v\u00f2ng d\u1eabn h\u01b0\u1edbng v\u00e0 c\u1ee5m t\u1ea5m van.<\/td>\n<\/tr>\n
8.000 gi\u1edd<\/td>\n\u0110\u1ea1i tu l\u1edbn<\/td>\nKi\u1ec3m tra c\u1ed5 tr\u1ee5c khu\u1ef7u, \u0111o khe h\u1edf b\u1ea1c l\u00f3t ch\u00ednh, thay th\u1ebf b\u1ea1c l\u00f3t n\u1ebfu >0,08 mm.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Thi\u1ebft k\u1ebf kh\u00f4ng d\u1ea7u c\u1ee7a DW-100\/8 gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 ph\u1ee9c t\u1ea1p trong b\u1ea3o tr\u00ec so v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p thay th\u1ebf c\u00f3 b\u00f4i tr\u01a1n \u1edf quy m\u00f4 n\u00e0y. Kh\u00f4ng c\u1ea7n l\u00ean l\u1ecbch thay d\u1ea7u (\u0111i\u1ec1u n\u00e0y s\u1ebd y\u00eau c\u1ea7u h\u01a1n 500 l\u00edt d\u1ea7u b\u00f4i tr\u01a1n m\u1ed7i l\u1ea7n thay), kh\u00f4ng c\u1ea7n ph\u00e2n t\u00edch d\u1ea7u, kh\u00f4ng c\u1ea7n thay th\u1ebf c\u00e1c b\u1ed9 l\u1ecdc v\u00e0 kh\u00f4ng c\u1ea7n theo d\u00f5i c\u00e1c h\u1ed9p t\u00e1ch d\u1ea7u. C\u00e1c b\u1ed9 ph\u1eadn hao m\u00f2n ti\u00eau hao ch\u00ednh l\u00e0... v\u00f2ng piston PTFE v\u00e0 v\u00f2ng d\u1eabn h\u01b0\u1edbng<\/strong>Th\u00f4ng th\u01b0\u1eddng, ch\u00fang \u0111\u1ea1t \u0111\u01b0\u1ee3c tu\u1ed5i th\u1ecd ho\u1ea1t \u0111\u1ed9ng t\u1eeb 4.000 \u0111\u1ebfn 6.000 gi\u1edd trong \u0111i\u1ec1u ki\u1ec7n kh\u00ed nit\u01a1 s\u1ea1ch. V\u1edbi c\u00f4ng su\u1ea5t 100 m\u00b3\/ph\u00fat, vi\u1ec7c lo\u1ea1i b\u1ecf b\u1ea3o tr\u00ec li\u00ean quan \u0111\u1ebfn d\u1ea7u b\u00f4i tr\u01a1n gi\u00fap ti\u1ebft ki\u1ec7m h\u00e0ng n\u0103m t\u1eeb $50.000 \u0111\u1ebfn $80.000 so v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p thay th\u1ebf c\u00f3 b\u00f4i tr\u01a1n.<\/p>\n

\"DW-100\/8<\/p>\n<\/div>\n

<\/p>\n

\n

Ch\u1ee9ng nh\u1eadn tu\u00e2n th\u1ee7 v\u00e0 an to\u00e0n<\/h2>\n

M\u00e1y n\u00e9n kh\u00ed nit\u01a1 DW-100\/8 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf, s\u1ea3n xu\u1ea5t v\u00e0 th\u1eed nghi\u1ec7m \u0111\u1ec3 \u0111\u00e1p \u1ee9ng ho\u1eb7c v\u01b0\u1ee3t qua c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf v\u00e0 khung ph\u00e1p l\u00fd sau:<\/p>\n

\n
Ch\u1ec9 th\u1ecb v\u1ec1 thi\u1ebft b\u1ecb ch\u1ecbu \u00e1p l\u1ef1c<\/strong>
\nASME BPVC Ph\u1ea7n VIII Div.1, GB 150-2011, PED 2014\/68\/EU M\u00f4-\u0111un A<\/span><\/div>\n
An to\u00e0n \u0111i\u1ec7n v\u00e0 m\u00e1y m\u00f3c<\/strong>
\nIEC 60034-1 (hi\u1ec7u su\u1ea5t IE3), IEC 60204-1, an to\u00e0n m\u00e1y m\u00f3c ISO 12100<\/span><\/div>\n
Ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed kh\u00f4ng d\u1ea7u<\/strong>
\n\u0110\u1ea1t ti\u00eau chu\u1ea9n ISO 8573-1 Lo\u1ea1i 0 (H\u00e0m l\u01b0\u1ee3ng d\u1ea7u), \u0111\u01b0\u1ee3c ki\u1ec3m nghi\u1ec7m \u0111\u1ed9c l\u1eadp b\u1edfi T\u00dcV Rheinland.<\/span><\/div>\n
Ch\u1ea5t l\u01b0\u1ee3ng & M\u00f4i tr\u01b0\u1eddng<\/strong>
\nISO 9001:2015 (Qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng), ISO 14001:2015 (Qu\u1ea3n l\u00fd m\u00f4i tr\u01b0\u1eddng)<\/span><\/div>\n<\/div>\n
\u26a0\ufe0f Th\u00f4ng b\u00e1o an to\u00e0n quan tr\u1ecdng<\/strong><\/p>\n

Nit\u01a1 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i l\u00e0 kh\u00ed g\u00e2y ng\u1ea1t \u0111\u01a1n gi\u1ea3n. V\u1edbi c\u00f4ng su\u1ea5t kh\u1ed5ng l\u1ed3 100 m\u00b3\/ph\u00fat c\u1ee7a DW-100\/8, nguy c\u01a1 thi\u1ebfu h\u1ee5t oxy nhanh ch\u00f3ng trong kh\u00f4ng gian k\u00edn l\u00e0 r\u1ea5t nghi\u00eam tr\u1ecdng. T\u1ea5t c\u1ea3 c\u00e1c h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t ph\u1ea3i t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t thi\u1ebfu h\u1ee5t oxy li\u00ean t\u1ee5c v\u1edbi nhi\u1ec1u v\u1ecb tr\u00ed c\u1ea3m bi\u1ebfn trong to\u00e0n b\u1ed9 ph\u00f2ng m\u00e1y n\u00e9n v\u00e0 c\u00e1c khu v\u1ef1c l\u00e2n c\u1eadn. H\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 duy tr\u00ec n\u1ed3ng \u0111\u1ed9 oxy trong m\u00f4i tr\u01b0\u1eddng xung quanh tr\u00ean 19,51 TP3T theo ti\u00eau chu\u1ea9n OSHA 29 CFR 1910.146, v\u1edbi kh\u1ea3 n\u0103ng th\u00f4ng gi\u00f3 kh\u1ea9n c\u1ea5p \u0111\u1ee7 \u0111\u1ec3 x\u1eed l\u00fd to\u00e0n b\u1ed9 l\u01b0u l\u01b0\u1ee3ng nit\u01a1 trong tr\u01b0\u1eddng h\u1ee3p x\u1ea3 kh\u00ed \u0111\u1ed9t ng\u1ed9t. C\u00e1c kh\u00f3a li\u00ean \u0111\u1ed9ng t\u1eaft kh\u1ea9n c\u1ea5p ph\u1ea3i k\u00edch ho\u1ea1t \u1edf m\u1ee9c 19,51 TP3T O\u2082 (b\u00e1o \u0111\u1ed9ng) v\u00e0 k\u00edch ho\u1ea1t c\u00e1ch ly m\u00e1y n\u00e9n t\u1ef1 \u0111\u1ed9ng \u1edf m\u1ee9c 18,01 TP3T O\u2082 (t\u1eaft c\u1ee9ng). Quy tr\u00ecnh ra v\u00e0o ph\u00f2ng m\u00e1y n\u00e9n k\u00edn c\u1ee7a nh\u00e2n vi\u00ean ph\u1ea3i bao g\u1ed3m m\u00e1y \u0111o oxy di \u0111\u1ed9ng, quy tr\u00ecnh l\u00e0m vi\u1ec7c theo nh\u00f3m v\u00e0 quy tr\u00ecnh kh\u00f3a\/g\u1eafn th\u1ebb an to\u00e0n.<\/p>\n<\/div>\n

\"DW-100\/8<\/p>\n<\/div>\n

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Ph\u00e2n t\u00edch hi\u1ec7u su\u1ea5t v\u00e0 hi\u1ec7u qu\u1ea3<\/h2>\n

DW-100\/8 \u0111\u1ea1t \u0111\u01b0\u1ee3c... c\u00f4ng su\u1ea5t ti\u00eau th\u1ee5 ri\u00eang kho\u1ea3ng 6,00 kW\/m\u00b3\/ph\u00fat<\/strong> L\u01b0\u1ee3ng nit\u01a1 \u0111\u01b0\u1ee3c cung c\u1ea5p \u1edf \u00e1p su\u1ea5t x\u1ea3 0,80 MPa. Ch\u1ec9 s\u1ed1 hi\u1ec7u su\u1ea5t n\u00e0y l\u00e0 \u0111\u1eb7c bi\u1ec7t \u1ea5n t\u01b0\u1ee3ng \u0111\u1ed1i v\u1edbi m\u1ed9t m\u00e1y n\u00e9n piston kh\u00f4ng d\u1ea7u c\u00f4ng su\u1ea5t c\u1ef1c cao ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ef7 l\u1ec7 \u00e1p su\u1ea5t cao. \u0110\u1ec3 d\u1ec5 h\u00ecnh dung, c\u00e1c m\u00e1y n\u00e9n tr\u1ee5c v\u00edt b\u00f4i tr\u01a1n b\u1eb1ng d\u1ea7u trong c\u00e1c \u1ee9ng d\u1ee5ng quy m\u00f4 l\u1edbn t\u01b0\u01a1ng t\u1ef1 th\u01b0\u1eddng ti\u00eau th\u1ee5 6,5\u20137,5 kW\/m\u00b3\/ph\u00fat, trong khi vi\u1ec7c c\u1ed1 g\u1eafng s\u1eed d\u1ee5ng nhi\u1ec1u m\u00e1y n\u00e9n nh\u1ecf h\u01a1n song song l\u1ea1i g\u00e2y ra th\u00eam s\u1ef1 thi\u1ebfu hi\u1ec7u qu\u1ea3 do ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ea3i m\u1ed9t ph\u1ea7n v\u00e0 t\u1ed5n th\u1ea5t ph\u00e2n ph\u1ed1i.<\/p>\n

Trong \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh ti\u00eau chu\u1ea9n h\u00e0ng n\u0103m 8.000 gi\u1edd, l\u1ee3i th\u1ebf v\u1ec1 hi\u1ec7u qu\u1ea3 c\u1ee7a DW-100\/8 t\u1ea1o ra kho\u1ea3ng Ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng h\u00e0ng n\u0103m t\u1eeb 400.000 \u0111\u1ebfn 1.200.000 kWh<\/strong> So v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p thay th\u1ebf k\u00e9m hi\u1ec7u qu\u1ea3 h\u01a1n ho\u1eb7c b\u1ed1 tr\u00ed m\u00e1y n\u00e9n song song. V\u1edbi gi\u00e1 \u0111i\u1ec7n c\u00f4ng nghi\u1ec7p trung b\u00ecnh l\u00e0 $0,08\/kWh, \u0111i\u1ec1u n\u00e0y t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi vi\u1ec7c gi\u1ea3m chi ph\u00ed v\u1eadn h\u00e0nh tr\u1ef1c ti\u1ebfp t\u1eeb $32.000 \u0111\u1ebfn $96.000 m\u1ed7i n\u0103m. Khi k\u1ebft h\u1ee3p v\u1edbi vi\u1ec7c lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n c\u00e1c v\u1eadt t\u01b0 ti\u00eau hao li\u00ean quan \u0111\u1ebfn d\u1ea7u (\u0111i\u1ec1u n\u00e0y s\u1ebd r\u1ea5t t\u1ed1n k\u00e9m \u1edf quy m\u00f4 100 m\u00b3\/ph\u00fat), th\u00ec... t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu cho h\u1ec7 th\u1ed1ng n\u00e9n kh\u00ed nit\u01a1<\/a> L\u01b0\u1ee3ng kh\u00ed th\u1ea3i gi\u1ea3m \u01b0\u1edbc t\u00ednh kho\u1ea3ng 25\u201335% trong su\u1ed1t v\u00f2ng \u0111\u1eddi ho\u1ea1t \u0111\u1ed9ng 10 n\u0103m.<\/p>\n

Vi\u1ec7c kh\u00f4ng s\u1eed d\u1ee5ng d\u1ea7u trong \u0111\u01b0\u1eddng d\u1eabn n\u00e9n gi\u00fap lo\u1ea1i b\u1ecf t\u1ed5n th\u1ea5t n\u0103ng l\u01b0\u1ee3ng v\u00e0 y\u00eau c\u1ea7u v\u1ec1 kh\u00f4ng gian v\u1eadt l\u00fd c\u1ee7a thi\u1ebft b\u1ecb lo\u1ea1i b\u1ecf d\u1ea7u \u1edf ph\u00eda sau. \u1ede l\u01b0u l\u01b0\u1ee3ng 100 m\u00b3\/ph\u00fat, m\u1ed9t m\u00e1y n\u00e9n b\u00f4i tr\u01a1n b\u1eb1ng d\u1ea7u th\u00f4ng th\u01b0\u1eddng s\u1ebd c\u1ea7n nhi\u1ec1u b\u1ed9 l\u1ecdc k\u1ebft t\u1ee5 l\u1edbn, b\u00ecnh h\u1ea5p ph\u1ee5 than ho\u1ea1t t\u00ednh v\u00e0 thi\u1ebft b\u1ecb gi\u00e1m s\u00e1t d\u1ea7u li\u00ean t\u1ee5c, t\u1ed5ng c\u1ed9ng s\u1ebd ti\u00eau th\u1ee5 3\u201351 t\u1ea5n c\u00f4ng su\u1ea5t \u0111\u1ea7u ra c\u1ee7a m\u00e1y n\u00e9n v\u00e0 chi\u1ebfm di\u1ec7n t\u00edch s\u00e0n \u0111\u00e1ng k\u1ec3. Thi\u1ebft k\u1ebf kh\u00f4ng d\u1ea7u c\u1ee7a DW-100\/8 lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n t\u1ea3i ti\u00eau hao v\u00e0 g\u00e1nh n\u1eb7ng v\u1ec1 kh\u00f4ng gian n\u00e0y.<\/p>\n<\/div>\n

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Kh\u1ea3 n\u0103ng t\u00f9y ch\u1ec9nh v\u00e0 s\u1ea3n xu\u1ea5t theo \u0111\u01a1n \u0111\u1eb7t h\u00e0ng (OEM)<\/h2>\n

Ch\u00fang t\u00f4i cung c\u1ea5p c\u00e1c t\u00f9y ch\u1ecdn t\u00f9y ch\u1ec9nh to\u00e0n di\u1ec7n \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh DW-100\/8 cho ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3 c\u1ee7a c\u00e1c c\u00f4ng tr\u00ecnh quy m\u00f4 l\u1edbn, y\u00eau c\u1ea7u t\u00edch h\u1ee3p v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i:<\/p>\n