Kev teeb tsa lub valve yooj yim tuaj sai nrog cov khoom siv valve logo thiab cov cim xim

Kev teeb tsa lub valve yooj yim tuaj sai nrog cov khoom siv valve logo thiab cov cim xim Valve teeb tsa thiab xaiv hom tsim nyog (tsis yog qauv). Valves yog ib feem tseem ceeb ntawm kev ua haujlwm ntawm cov txheej txheem txheej txheem cov kws tshaj lij thaum npaj PI daim duab. Cov ntsiab lus tau piav qhia hauv tsab cai no suav nrog cov kev cai dav dav ntawm kev tsim khoom thiab kev nyab xeeb. Thaum tsim engineering tsim los ntawm kev xa mus rau cov kev cai no, cov kws tshaj lij yuav tsum xaiv raws li qhov xwm txheej tshwj xeeb ntawm qhov project, cov xwm txheej hauv zos, kev koom tes hauv tsev, kev ua haujlwm ntawm cov cuab yeej, cov yam ntxwv ntawm cov dej, cov kev xav tau tshwj xeeb ntawm cov neeg siv thiab kev lag luam, thiab lwm yam. . Cov kev cai no kuj qhia txog cov yam ntxwv ntawm kev lag luam li qub thiab cov yam ntxwv uas yuav tsum tau txiav txim siab hauv kev xaiv cov li qub hauv engineering tsim 1. Cov kev cai muaj feem xyuam rau cov txheej txheem tshuaj lom neeg. Lub valve hais tsis suav nrog kev nyab xeeb valve, chav ntxiab, ntsuas lub valve thiab lub siab txo lub valve, tab sis suav nrog cov ntws txwv orifite phaj, dig muag phaj thiab lwm yam yeeb nkab fittings uas muaj cov haujlwm zoo sib xws nrog lub valve, nrog rau kev txiav tawm valve raws li qhov dav dav. lub npe ntawm cov valve no. Kev ua haujlwm ntawm qhov txiav tawm valve yog siv los txiav tawm cov kua dej los yog ua kom cov kua hloov pauv cov kev coj ua, raws li kev tsim khoom (nrog rau kev tsim khoom ib txwm muaj, qhib thiab kaw thiab ua haujlwm tshwj xeeb), kev saib xyuas thiab kev nyab xeeb yuav tsum tau thiab Chaw, tab sis kuj yuav xav txog qhov rationality ntawm kev lag luam. Valve teeb thiab xaiv hom tsim nyog (tsis yog qauv). Valves yog ib feem tseem ceeb ntawm kev ua haujlwm ntawm cov txheej txheem txheej txheem cov kws tshaj lij thaum npaj PI daim duab. Cov ntsiab lus tau piav qhia hauv tsab cai no suav nrog cov kev cai dav dav ntawm kev tsim khoom thiab kev nyab xeeb. Thaum tsim engineering tsim los ntawm kev xa mus rau cov kev cai no, cov kws tshaj lij yuav tsum xaiv raws li qhov xwm txheej tshwj xeeb ntawm qhov project, cov xwm txheej hauv zos, kev koom tes hauv tsev, kev ua haujlwm ntawm cov cuab yeej, cov yam ntxwv ntawm cov dej, cov kev xav tau tshwj xeeb ntawm cov neeg siv thiab kev lag luam, thiab lwm yam. . Cov kev cai no nthuav dav thiab dav dav qhia txog kev teeb tsa lub valve nyob rau hauv cov ntaub ntawv teev tseg thiab cov ncauj lus kom ntxaws ntawm ntau yam tshuaj. Saib lub hom phiaj tseem ceeb ntawm chav tsev sib thooj PI daim duab. Cov kev cai no tseem qhia txog cov yam ntxwv ntawm kev lag luam li qub thiab cov yam ntxwv uas yuav tsum tau xav txog hauv kev xaiv cov li qub hauv kev tsim qauv engineering. 2. Kev teeb tsa lub valve yog teem rau ntawm ciam teb Cov txheej txheem cov khoom siv thiab cov khoom siv sib txuas yuav tsum raug txiav ntawm thaj tsam ntawm cov nroj tsuag (feem ntau hauv thaj chaw cog ciam teb) Valve tawg, tshwj tsis yog nyob rau hauv cov xwm txheej hauv qab no: (1) Cov pa tawm. (2) cov yeeb nkab tso tawm thaum lub qhov hluav taws xob tawm hluav taws xob nyob sab nraud ntawm tus ciam teb; Yog tias cov valve yuav tsum tau teeb tsa hauv ob qhov xwm txheej no, cov hlau lead sealing tseem yuav tsum qhib (CSO) (3) cov khoom siv yeeb nkab uas yuav tsis ua rau txoj hlua khi thiab kev sib tsoo. (4) Cov khoom siv raj tsis muaj kev ntsuas. FIG. 2.0.1 valve teeb ntawm ciam teb Valves ntawm ciam teb yog teem nyob rau hauv ntau txoj kev raws li qhia nyob rau hauv daim duab 2.0.1. Qhov twg (1) siv rau cov ntaub ntawv dav dav Txiav tawm; Nyob rau hauv cov ntaub ntawv ntawm kev nyab xeeb xwm txheej xws li hluav taws kub los yog cov khoom tseem ceeb tsis zoo tshwm sim los ntawm cov khoom stringing, dig muag daim hlau yuav tsum tau ntxiv nyob rau hauv FIG. 2.0.1 los tiv thaiv sab hauv ntawm lub valve. (3) thiab (5) hauv FIG. 2.0.1 yog qhov tsim nyog rau cov kab nqes los yog nqes nqes cheb tom qab pub mis. Valve A kuj tuaj yeem siv rau kev ntxuav, ntxuav, kuaj pom, lossis lub ntsuas ntsuas tuaj yeem ntsia nruab nrab ntawm ob lub valve hauv series. (5) nyob rau hauv daim duab 2.0.1 yog muaj feem xyuam rau qhov kev hloov siab yuav loj thiab cov kos valve ua raws li kev txiav tawm tam sim. Kev teeb tsa lub hauv paus valve Thaum qhov nruab nrab yuav tsum tau thauj mus rau ntau tshaj ib tus neeg siv, txhawm rau txhawm rau txhim kho kev saib xyuas lossis kev txuag hluav taws xob, tiv thaiv kom tsis txhob khov, ntxiv rau cov khoom siv txuas ntxiv nrog rau kev txiav tawm valve, txiav tawm valve. hu ua lub hauv paus valve yog ntsia rau ntawm ceg yeeb nkab ze rau lub ntsiab yeeb nkab. Feem ntau siv rau hauv cov khoom siv sib xws (xws li chav, cua compressed, nitrogen, thiab lwm yam). Kev teeb tsa tib yam yuav tsum tau ua thaum cov khoom siv txheej txheem siv rau ntau tus neeg siv (xws li cov kuab tshuaj). Lub valve qhia hauv daim duab 2.0.2 yog lub hauv paus valve. Nyob rau hauv lub zog-txuag antifreeze yuav tsum, qhov kev ncua deb ntawm lub hauv paus valve thiab tus saib xyuas yuav tsum tsawg li tsawg tau. Daim duab 2.0.2 Schematic daim duab ntawm kev teeb tsa lub hauv paus valve hauv paus li qub yuav tsum tau muab tso rau ntawm txhua ceg kav dej ntawm cov khoom siv hauv cov kav dej hauv cov nroj tsuag tshuaj kom tsis txhob muaj kev puas tsuaj ntawm lub Valve ua rau cov nroj tsuag lossis cov nroj tsuag kaw. Chav dej thiab cov kav dej saum taub hau, txawm tias mus rau ib tsob ntoo lossis ib qho khoom siv, thaum cov ceg yeeb nkab ntev tshaj li qhov ntev, kuj yuav tsum tau ntxiv cov hauv paus valve kom txo qhov chaw tuag, txo kev siv zog, tiv thaiv kom khov. Ob los yog ntau tshaj auxiliary steam khoom yuav tsum tau txiav txim raws li qhov tseem ceeb ntawm kev tsim cov ceg yeeb nkab hauv paus valve. Lub hauv paus valve ntawm ceg yeeb nkab ntawm cov khoom siv feem ntau yog tsim los ntawm cov kws tshaj lij hauv kev tsim cov raj xa dej, thiab cov txheej txheem txheej txheem kev tshaj lij yuav tsum xyuas seb cov ceg puas tsim nyog. Thiab lub hauv paus valve yog sawv cev ntawm cov khoom siv pej xeem PI daim duab (daim duab faib). Ob chav valve Liquefied petroleum gas, flammable, lom thiab precious kua thiab lwm yam corrosive heev, xws li muaj zog acid, caustic soda thiab muaj tshwj xeeb yuav tsum tau (xws li ib tug stench nruab nrab ua rau muaj kuab paug rau ib puag ncig) nruab nrab tank, thiab ib kab nyob rau hauv qab. rau lwm cov khoom siv, tsis muaj teeb meem nyob ze rau lwm yam khoom siv rau lub valve thiab ob lub valve yuav tsum tau muab tso rau hauv series (ob lub valve), Ib qho ntawm lawv yuav tsum tau snug tiv thaiv lub tank nozzles. Thaum lub tank muaj peev xwm loj los yog nyob deb, lub valve yog qhov zoo dua cov chaw taws teeb tswj valve. Txhawm rau txo tus naj npawb ntawm cov li qub, muab ob peb lub kav dej rau ib qho qhib raws li qhia hauv FIG. 2.0.3--1 yog kev tso cai ua haujlwm. Lub valve ntawm lub thawv uas muaj cov lus hais saum toj no yuav tsum yog ob lub valve, raws li pom hauv daim duab 2.0.3-1. JB/T 106-2004: nominal size (DN), siab code los yog ua hauj lwm siab code, khoom hom los yog code, chaw tsim tshuaj paus lub npe los yog trademark, furnace tooj (casting valve) yuav tsum tau mus sij hawm ntev cim nyob rau ntawm lub siab valve lub cev raws li rau GB/T 12220-1989. Valves nrog cov kev taw qhia ntws yuav tsum tau cim nrog nruab nrab ntws xub. Ib qho, qhov project logo dav dav raws li GB / T 12220 "General Valve Mark", lub valve dav dav yuav tsum tau siv thiab xaiv siv cov khoom kos npe raws li hauv qab no: qhov project mark project mark 1 Nominal size (DN) 11 Standard no. 2 Nominal siab (PN) 12 Thaum tshav kub kub tooj 3 Cov khoom siv rau cov khoom siv siab 13 Cov khoom siv sab hauv 4 Lub npe lossis cov cim kev lag luam ntawm cov chaw tsim khoom 14 Qhov chaw, 5 Qhov nruab nrab ntws xub 15 Code rau cov khoom siv hauv ob sab phlu 6 Lub nplhaib nplhaib (gasket) code 16 Zoo thiab kev xeem cim 7 Qhov txwv kub 17 Tus neeg soj ntsuam lub cim 8 Xov code 18 Kev tsim khoom xyoo, lub hli 9 Kev kub siab 19 Flow yam ntxwv 10 Lub Hoobkas No. 2. Kev kos cim 1. Cim cov ntsiab lus JB/T 106-2004: nominal size (DN), siab code lossis ua haujlwm siab code, cov khoom siv hom lossis code, chaw tsim khoom lub npe lossis lub cim lag luam, tus naj npawb ntawm lub tshuab hluav taws xob (cam khwb cia valve) yuav tsum raug cim rau ntawm qhov chaw siab valve lub cev raws li GB / T 12220-1989. Valves nrog cov kev taw qhia ntws yuav tsum tau cim nrog nruab nrab ntws xub. 2. Kev kos cim GB / T 12220-1989: li qub nrog nominal loj dua lossis sib npaug ntawm DN50 yuav tsum tau cim nrog nominal loj (DN), nominal siab (PN), cov khoom kab lossis cov lej ntawm cov khoom siv, lub npe lossis cov khoom lag luam , melting furnace tooj (casting) yuav tsum tau cim rau ntawm lub valve lub cev. Rau cov li qub uas muaj qhov loj me me dua DN50, plaub lub cim saum toj no yuav tsum raug cim rau ntawm lub cev lub cev lossis daim ntawv teev npe raws li tus qauv tsim. Thaum lub nominal siab ntawm lub cim casting ntawm lub valve lub cev yog teem rau hauv qab nominal loj tus nqi, lub nominal siab yuav tsum tsis txhob prefixed nrog lub code "PN". GB / T 12220-1989 qhia txog qhov nruab nrab ntws xub, foob lub nplhaib (pad) code tsuas yog thaum teev nyob rau hauv ib qho kev cai valve yuav tsum tau cim rau ntawm lub valve lub cev thiab flange feem. Yog tias tsis muaj cov kev cai tshwj xeeb hauv GB / T 12220-1989, cov khoom 7 - 19 hauv cov lus saum toj no yog cov cim xaiv rau kev siv ntawm kev thov. Kos rau ntawm lub cev lub cev lossis daim ntawv teev npe raws li xav tau. GB / T 12220-1989 muab hais tias yog lub log loj txaus, lub log yuav tsum tau muab ib tug xub qhia cov kev taw qhia ntawm valve kaw los yog ntxiv "tawm" ntawv. JB/T 106-2004: lub valve lub cev los ntawm casting los yog tuag casting txoj kev, nws lub logo yuav tsum tau cam khwb cia los yog tuag cam khwb cia rau lub valve lub cev tib lub sij hawm. Thaum lub cev zoo los ntawm txoj kev tuag forging, nws lub logo ntxiv rau lub cev tib lub sijhawm tuag forging lossis tuag casting, kuj tuaj yeem raug cim rau ntawm lub cev los ntawm txoj kev embossing. Thaum cov duab ntawm lub cev valve tau ua tiav los ntawm forging, steel yeeb nkab lossis steel phaj dov vuam txoj kev, nws lub logo ntxiv rau kev tsim cov txheej txheem embossing, tab sis kuj tuaj yeem siv rau lwm txoj hauv kev uas tsis cuam tshuam rau kev ua haujlwm ntawm lub cev valve. . Kos txoj hauj lwm thiab cim loj LJB / T 106-2004 kev cai: cov ntsiab lus cim, yuav tsum tau cim rau ntawm lub cev ntawm qhov yooj yim pom qhov chaw. Cov cim yuav tsum tau qhia kom deb li deb tau nyob rau hauv nruab nrab kab noj hniav ntawm lub cev perpendicular kab nruab nrab.