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Txoj kev ntsuas siab ntawm kev nyab xeeb valve

¢ Ù Kev ntsuas lub zog ntawm kev ruaj ntseg valve yog tib yam li lwm cov li qub. Thaum kuaj qhov qis ntawm lub cev valve, lub siab yog qhia los ntawm I = Kuv kawg, thiab lub sealing nto raug kaw; Thaum kuaj lub sab sauv ntawm lub cev valve thiab lub valve npog, lub siab yog qhia los ntawm El kawg, thiab lwm qhov kawg raug kaw. Lub valve lub cev thiab lub hau npog yog tsim nyog yog tias tsis muaj qhov xau hauv lub sijhawm teev tseg.

¢Ú Sealing test thiab qhov ntsuas siab tas mus li, kev siv nruab nrab yog: chav kev nyab xeeb valve nrog saturated steam raws li qhov nruab nrab qhov ntsuas; Lub valve rau ammonia lossis lwm cov pa roj siv cua ua qhov ntsuas nruab nrab; Li qub rau cov dej thiab lwm yam dej tsis muaj corrosive siv dej ua qhov nruab nrab ntawm qhov ntsuas. Rau qee qhov kev nyab xeeb tseem ceeb, nitrogen feem ntau yog siv los ua qhov ntsuas nruab nrab.

Kev ntsuas kev sib khi yuav tsum tau ua nrog tus nqi nominal siab raws li qhov kev sim siab, thiab tus naj npawb ntawm lub sijhawm yuav tsum tsis pub tsawg dua ob, thiab nws tsim nyog yog tias tsis muaj qhov xau hauv lub sijhawm teev tseg. Muaj ob txoj hauv kev los kuaj xyuas cov dej xau: ib qho yog txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau nws muaj ob txoj hauv kev: Thib ob, siv butter los khi lub phaj nyias nyias los yog lwm daim hlau nyob rau sab qis ntawm lub qhov hluav taws xob flange, sau dej los kaw lub valve disc, thiab xyuas tias cov dej tsis npuas raws li tsim nyog. Tus naj npawb ntawm qhov siab tas mus li thiab rov ntsuas qhov siab ntawm qhov kev nyab xeeb valve yuav tsum tsis pub tsawg dua 3 zaug, thiab nws tsim nyog yog tias nws ua tau raws li qhov yuav tsum tau ua. Saib GB / T 12242 1989 kev ntsuas kev ua haujlwm rau kev nyab xeeb li qub rau ntau yam kev ntsuas kev nyab xeeb ntawm kev nyab xeeb li qub

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Lub sij hawm xa tuaj: Plaub Hlis-26-2021

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