Kev Tshawb Fawb Txog Cov Ntsiab Cai Xaiv thiab Cov Kev Cai Ua Haujlwm Siv Tau Rau Cov Npauj Npaim Valves

I. Cov Ntsiab Cai rau Kev XaivNpauj Npaim Valves

1. Kev xaiv hom qauv

Lub valve nruab nrab (hom kab nruab nrab):Lub qia valve thiab lub phaj npauj npaim yog nruab nrab sib npaug, nrog cov qauv yooj yim thiab pheej yig. Kev sib khi yog siv cov roj hmab mos mos. Nws yog qhov tsim nyog rau cov xwm txheej uas muaj qhov kub thiab txias ib txwm muaj thiab tsis muaj kev cai nruj.

Ib lub valve npauj npaim eccentric:Lub qia ntawm lub valve raug tshem tawm ntawm qhov chaw nruab nrab ntawm lub butterfly disc, txo qhov kev sib txhuam ntawm cov nplaim sealing thaum lub sijhawm ua haujlwm thiab ua kom lub neej ua haujlwm ntev dua. Zoo tagnrho rau cov ntawv thov nruab nrab thiab qis-siab uas xav tau qhib thiab kaw ntau zaus.

Ob chav eccentric npauj npaim valve (siab ua haujlwm npauj npaim valve):Lub qia ntawm lub valve raug tshem tawm ntawm ob qho tib si lub butterfly disc thiab qhov chaw sealing surface, ua rau kev ua haujlwm tsis muaj kev sib txhuam. Nws feem ntau muaj cov hlau lossis cov khoom sib xyaw ua ke. Zoo tagnrho rau cov khoom siv kub, siab, corrosive, lossis particulate media.

Peb-eccentric npauj npaim valve:Ua ke ob lub eccentricity nrog lub beveled conical sealing khub, nws ua tiav xoom kev sib txhuam thiab xoom qhov xau, nrog rau kev tiv taus kub thiab siab siab. Zoo tagnrho rau cov xwm txheej ua haujlwm hnyav (piv txwv li, pa, roj / roj av, cov xov xwm kub siab).

2. Xaiv hom tsav tsheb

Phau Ntawv Qhia:rau cov kab uas me me (DN≤200), qhov siab qis, lossis qhov xwm txheej ua haujlwm tsis tshua muaj.

Tsav tsheb iav cab:Haum rau cov ntawv thov nruab nrab mus rau loj uas xav tau kev ua haujlwm yooj yim lossis kev tswj hwm kev ntws.

Pneumatic/Fais fab:Kev tswj chaw taws teeb, cov tshuab ua haujlwm tsis siv neeg, lossis cov kev xav tau kaw sai (piv txwv li, cov tshuab ceeb toom hluav taws, kev kaw thaum muaj xwm txheej ceev).

3. Cov ntaub ntawv thiab cov ntaub ntawv sealing

Lub foob mos (roj hmab, PTFE, thiab lwm yam): kev sib khi zoo, tab sis tsis kam kub thiab siab (feem ntau ≤120 ° C, PN ≤1.6MPa). Haum rau dej, cua thiab cov xov xwm xeb tsis muaj zog.

Cov ntsaws ruaj ruaj hlau (stainless hlau, cemented carbide): Ua haujlwm tau kub heev (txog li 600 ° C), siab siab, thiab hnav thiab xeb tsis kam, tab sis kev ua haujlwm sealing qis dua li cov ntsaws ruaj ruaj mos. Haum rau cov khoom siv kub siab hauv metallurgy, fais fab nroj tsuag, thiab petrochemicals.

Khoom siv hauv lub cev: Hlau cam khwb cia, hlau carbon, hlau tsis xeb, hlau alloy, lossis yas/roj hmab nyob ntawm seb qhov corrosion ntawm cov khoom nruab nrab.

4. Qhov siab thiab qhov kub thiab txias:

Cov li qub npauj npaim uas kaw mos feem ntau siv rau PN10 ~ PN16, nrog rau qhov kub thiab txias ≤120 ° C. Cov li qub npauj npaim peb-eccentric uas kaw hlau tuaj yeem ncav cuag siab dua PN100, nrog rau qhov kub thiab txias ≥600 ° C.

5. Cov yam ntxwv ntawm txoj kev khiav tsheb

Thaum xav tau kev tswj hwm kev ntws, xaiv lub valve npauj npaim uas muaj cov yam ntxwv ntws ncaj lossis sib npaug (piv txwv li, V-puab disc).

6. Qhov chaw teeb tsa thiab kev taw qhia ntws:Lub valve npauj npaim muaj cov qauv me me, ua rau nws haum rau cov kav dej uas muaj qhov chaw tsawg. Feem ntau, tsis muaj kev txwv kev ntws, tab sis rau cov valve npauj npaim peb-eccentric, yuav tsum tau teev qhov kev ntws.

II. Cov Sijhawm Siv Tau

1. Kev Txuag Dej thiab Kev Muab Dej & Cov Txheej Txheem Dej: Kev muab dej hauv nroog, cov kav dej tiv thaiv hluav taws, thiab kev kho dej phwj tuaj: feem ntau siv cov qhov dej npauj npaim uas kaw mos mos, uas pheej yig thiab muaj kev sib khi zoo. Rau cov qhov hluav taws xob ntawm lub twj tso kua mis thiab kev tswj dej ntws: xaiv cov qhov dej npauj npaim uas muaj iav kab lossis hluav taws xob tswj.

2. Cov kav dej roj av thiab cov roj av ntuj: Peb lub qhov dej npauj npaim uas muaj hlau kaw tau raug xaiv rau kev tiv taus siab thiab tiv thaiv kev xau. Cov khoom siv xeb (piv txwv li, cov kua qaub / alkalis): Cov qhov dej npauj npaim uas muaj fluorine lossis cov qhov dej hlau uas tiv taus xeb tau siv.

3. Rau kev lag luam fais fab, cov dej ncig, thiab cov pa roj flue desulfurization: nruab nrab lossis ob chav eccentric roj hmab-lined npauj npaim li qub. Rau cov kav dej pa (piv txwv li, cov khoom siv pabcuam hauv cov chaw tsim hluav taws xob): peb lub eccentric hlau-kaw npauj npaim li qub.

4. HVAC (Kev Ua Kub, Kev Pa, thiab Kev Txias) cov tshuab ua dej txias thiab dej kub: cov qhov dej npauj npaim uas kaw mos mos rau kev tswj kev ntws lossis kev txiav tawm.

5. Rau kev tsim kho dej hiav txwv thiab cov kav dej hiav txwv: cov kav dej npauj npaim duplex stainless hlau uas tiv taus xeb lossis cov kav dej npauj npaim roj hmab.

6. Cov qhov dej npauj npaim uas siv rau khoom noj thiab kho mob (cov hlau tsis xeb uas ci ntsa iab, cov khoom siv sib txuas sai) ua tau raws li qhov yuav tsum tau ua kom huv.

7. Cov hmoov av thiab cov khoom me me hauv cov xwm txheej ua haujlwm tshwj xeeb: Cov qhov rooj npauj npaim uas tsis yooj yim hnav tau raug pom zoo (piv txwv li, rau kev xa hmoov av).

Lub tshuab nqus tsev: Lub tshuab nqus tsev tshwj xeebnpauj npaim valveua kom muaj kev ua haujlwm sealing.

III. Xaus Lus

TWStsis yog tsuas yog tus khub koom tes ntseeg siab rau qhov zoonpauj npaim li qubtab sis kuj muaj kev txawj ntse ntau yam thiab cov kev daws teeb meem pov thawj hauvlub qhov rooj vag, xyuas cov li qub, thiabcov qhov cua tso tawmTxawm koj xav tau kev tswj cov kua dej li cas los xij, peb muab kev pabcuam valve tshaj lij, ib qho chaw nres tsheb. Yog tias koj xav tau kev koom tes lossis kev nug txog kev siv tshuab, thov koj xav tiv tauj peb txhua lub sijhawm.