Cov teeb meem tshwm sim hauv qhov ntsuas hluav taws xob valve Kev sib raug zoo ntawm lub valve loj thiab nruab nrab tshaj tawm
Cov txheej txheem ntawm kev lag luam petrochemical yog qhov nyuaj, thiab cov khoom siv raw, cov khoom tiav ib nrab, cov khoom tiav thiab ntau yam khoom siv hauv cov txheej txheem tsim khoom feem ntau yog cov khoom tawg thiab tawg, uas yooj yim ua rau hluav taws thiab kev sib tsoo. Thiab siv nyob rau hauv qee qhov kev siv hluav taws xob yooj yim ntawm lub valve, vim tias muaj peev xwm txaus ntshai ntawm hluav taws, feem ntau ntawm nws cov qauv tsim tshwj xeeb, kom lub valve nyob rau hauv ib lub sij hawm tom qab hluav taws kub tseem muaj qee qhov kev sib khi thiab kev ua haujlwm ntawm kev ua haujlwm. Hauv kev ntsuas qhov hluav taws kub ntawm cov li qub, kev ntsuas hluav taws yog ib qho tseem ceeb rau kev txheeb xyuas cov li qub. Kev ntsuas hluav taws kub ntawm cov li qub siv hauv kev lag luam petrochemical tau txuas nrog qhov tseem ceeb hauv tsev thiab txawv teb chaws thiab cov qauv tsim tau tsim.
Test txuj
Raws li cov xwm txheej sib txawv thiab cov khoom ua haujlwm, cov qauv ntsuas hluav taws xob valve kuj txawv, xws li American Petroleum Institute tau tsim tus qauv ANSI/API607-2005 rau lub rooj muag muag 1/4 tig li qub, API6FA-1999 rau cov raj xa dej thiab lub taub hau. , thiab API6FD-1995 rau kos li qub. Lub koom haum thoob ntiaj teb rau Standardization tau tsim tus qauv ISO10497-2004 rau kev ntsuas hluav taws kub ntawm ntau yam li qub, thiab peb lub teb chaws tau tsim tus qauv JB / T6899-1993 rau kev ntsuas hluav taws kub thiab cov txheej txheem.
Cov teeb meem tshwm sim hauv qhov kev sim ntsuas hluav taws kub
ntau yam
Thaum hluav taws
Kev sim siab tsawg
Kev sim ua haujlwm
lwm yam
Pob valve
Floating pob valve
Ob qho tib si sab hauv thiab sab nraud ntawm lub qhov muag muag lub rooj zaum yuav tshwm sim, thiab tej zaum yuav muaj cov pa tawm ntawm lub flange thiab qia ntawm lub valve thaum hluav taws kub, thaum cov dej xau nyob rau hauv lub zog foob lub rooj zaum feem ntau me me.
Internal to tuaj yeem nce siab hauv kev ntsuas qis tom qab txias
Tom qab ua haujlwm, cov dej ntws tawm sab nraud yog qhov yooj yim tshaj li tus qauv, thiab txoj haujlwm xau feem ntau yog flange kev sib txuas ntawm lub valve lub cev thiab lub valve qia.
Kho pob valve
Ob qho tib si sab hauv thiab sab nraud ntawm lub rooj zaum muag muag yuav tshwm sim. Thaum lub sij hawm hluav taws kub, tej zaum yuav muaj to ntawm lub flange, valve qia thiab pob txhawb nqa ncej ntawm lub valve, thaum lub to nyob rau hauv lub hard seal valve lub rooj zaum feem ntau me me.
Internal to tuaj yeem nce siab hauv kev ntsuas qis tom qab txias
Tom qab kev khiav hauj lwm ntawm cov dej xau sab nraud yog qhov yooj yim tshaj li tus qauv, txoj hauj lwm xau feem ntau yog lub valve lub cev flange, valve qia thiab pob txhawb nqa ncej.
Lub pob valve nrog cov qauv pob ruaj khov yog nyob rau hauv qhov kev sib khi sab saud, thiab cov dej ntws tawm sab hauv thaum lub sij hawm combustion yuav tsum raug txiav tawm ntawm cov dej ntim ntim hauv lub valve lub cev kab noj hniav.
Siab welded pob valve
Internal to tshwm sim tau yooj yim, thiab sab nraud to tuaj yeem tshwm sim ntawm qia
Internal leakage yuav nce
Sab nraud leakage feem ntau me me, tsuas yog lub qia tuaj yeem tshwm tawm sab nraud
Lub rooj vag valve
Internal to yog me me nyob rau hauv lwm yam khoom, sab nraud to nyob rau hauv lub valve lub cev kev twb kev txuas los yog qia yog ua tau
Internal leaks feem ntau yog me me
Tom qab ua haujlwm, lub valve lub cev kev sib txuas, qia thiab qhov dej ntws tuaj yeem cuam tshuam rau sab nraud
qaib
Mos foob valve to yog loj heev, tsis tuaj yeem lav zoo, tawv foob valve to me me
Tsis tshua muaj siab ntsuas tom qab txias soft seal valve to feem ntau loj, nyuaj foob valve to feem ntau me me
Tom qab kev ua haujlwm, cov dej xau ntawm qhov kev ntsuam xyuas sab nraud yog qhov yooj yim tshaj li tus qauv, thiab txoj hauj lwm xau feem ntau yog flange kev sib txuas ntawm lub valve lub cev thiab lub valve qia.
Npauj npaim valve
Internal leakage yog ib qho yooj yim tshwm sim rau lwm yam khoom, thiab sab nrauv to tuaj yeem tshwm sim ntawm qia
Leakage yog ib qho yooj yim tshwm sim nyob rau hauv qhov kev ntsuam xyuas tsis tshua muaj siab tom qab txias
Tom qab ua haujlwm, lub qia valve thiab kev txhawb nqa ncej yog ua rau sab nraud to
Globe valve
Internal to yog me me nyob rau hauv lwm yam khoom, sab nraud to nyob rau hauv lub valve lub cev kev twb kev txuas los yog qia yog ua tau
Internal leaks feem ntau yog me me
Tom qab kev ua haujlwm, cov dej xau ntawm qhov kev ntsuam xyuas sab nraud yog qhov yooj yim tshaj li tus qauv, thiab txoj hauj lwm xau feem ntau yog flange kev sib txuas ntawm lub valve lub cev thiab lub valve qia.
Lub check valve
Internal to yog ib qho yooj yim los tshwm nyob rau hauv lwm yam khoom, sab nraud to hauv lub valve lub cev thiab valve cover kev twb kev txuas yuav tshwm sim
Leakage yog ib qho yooj yim tshwm sim nyob rau hauv qhov kev ntsuam xyuas tsis tshua muaj siab tom qab txias
Tom qab kev khiav hauj lwm ntawm cov dej xau sab nraud yog qhov yooj yim tshaj li tus qauv, txoj hauj lwm xau feem ntau yog lub valve lub cev thiab valve npog kev sib txuas.
Kev ntsuas hluav taws kub ntawm lub valve yog simulate qhov kev sim ntawm lub valve hauv qhov chaw hluav taws kub. Nws tuaj yeem ua tau tiag tiag thiab muaj txiaj ntsig cuam tshuam qhov hluav taws kub ntawm qhov ntsuas valve. Nws yog ib qho tseem ceeb heev rau kev tshawb fawb ntawm cov qauv hluav taws kub ntawm lub valve thiab kev ntsuam xyuas qhov hluav taws kub ntawm lub valve.
Valve txoj kab uas hla thiab nruab nrab ndlwg tus nqi nruab nrab ntawm kev sib raug zoo ntawm qhov chaw ntws ntawm lub valve thiab tus nqi ntws, ntws muaj kev sib raug zoo, thiab tus nqi ntws thiab ntws yog ob qho tib si sib txawv. Thaum tus nqi ntws tsis tu ncua, qhov khiav ceev yog qhov loj, qhov chaw ntws channel tuaj yeem me dua; Tus nqi ntws me me, qhov chaw ntws channel tuaj yeem loj dua. Ntawm qhov tsis sib xws, qhov chaw ntws channel yog loj, tus nqi ntws me me; Qhov chaw ntws channel yog me me, nws qhov nrawm yog loj. Tus nqi ntws ntawm qhov nruab nrab yog qhov loj, lub valve txoj kab uas hla tuaj yeem me dua, tab sis qhov kev poob qis yog loj, lub valve yog yooj yim rau kev puas tsuaj. Tus nqi ntws siab, nplaim taws thiab tawg nruab nrab yuav tsim cov nyhuv electrostatic, ua rau muaj kev phom sij; Flow rate tsawg dhau, tsis muaj txiaj ntsig, tsis muaj nyiaj txiag.
Tus nqi ntws thiab tshaj tawm ntawm lub valve feem ntau yog nyob ntawm txoj kab uas hla ntawm lub valve, tab sis kuj muaj feem xyuam rau qhov tsis kam ntawm cov qauv ntawm lub valve mus rau qhov nruab nrab, thiab lub siab ntawm lub valve, qhov kub thiab txias ntawm qhov nruab nrab thiab lwm yam. muaj ib qho kev sib txuas sab hauv.
Valve hla cheeb tsam thiab ntws tus nqi, ntws tus nqi muaj kev sib raug zoo ncaj qha, thiab tus nqi ntws thiab ntws yog ob qhov sib txawv. Thaum tus nqi ntws tsis tu ncua, qhov khiav ceev yog loj, qhov chaw ntws channel tuaj yeem me dua; Tus nqi ntws me me, qhov chaw ntws channel tuaj yeem loj dua. Ntawm qhov tsis sib xws, qhov chaw ntws channel yog loj, tus nqi ntws me me; Qhov chaw ntws channel yog me me, nws qhov nrawm yog loj.
Tus nqi ntws ntawm qhov nruab nrab yog qhov loj, lub valve txoj kab uas hla tuaj yeem me dua, tab sis qhov kev poob qis yog loj, lub valve yog yooj yim rau kev puas tsuaj. Tus nqi ntws siab, nplaim taws thiab tawg nruab nrab yuav tsim cov nyhuv electrostatic, ua rau muaj kev phom sij; Flow rate tsawg dhau, tsis muaj txiaj ntsig, tsis muaj nyiaj txiag. Rau qhov nruab nrab nrog loj viscosity thiab tawg, tus nqi ntws yuav tsum me dua. Roj thiab kua nrog loj viscosity xaiv tus nqi ntws nrog viscosity, feem ntau siv 0.1 ~ 2m / s.
Feem ntau, qhov ntim tau paub thiab tus nqi ntws tuaj yeem txiav txim siab empirically. Qhov nominal loj ntawm lub valve tuaj yeem xam los ntawm tus nqi ntws thiab tus nqi ntws.
Valve loj yog tib yam, nws hom qauv sib txawv, cov dej tsis zoo tsis zoo ib yam. Raws li cov xwm txheej zoo ib yam, qhov ntau dua qhov kev tiv thaiv coefficient ntawm lub valve, qhov ntau thiab qhov ntws ntawm cov kua los ntawm lub valve poob; Qhov me me ntawm lub valve tsis kam coefficient, qhov tsawg dua tus nqi thiab qhov ntws ntawm cov kua los ntawm lub valve txo.
Kev xaiv ntawm txoj kab uas hla ntawm lub valve yuav tsum coj mus rau hauv tus account qhov tseeb machining thiab qhov sib txawv ntawm lub valve, nrog rau lwm yam. Valve loj yuav tsum yog ib qho ntawm cov khoom muaj nqis, feem ntau 15%. Hauv kev ua haujlwm tiag tiag, lub valve loj nrog cov txheej txheem pipeline loj.
Post lub sij hawm: Aug-20-2022
