Hluav taws xob ncaj nraim-los ntawm lub ntiaj teb valve txij nkawm txheej txheem thiab kev siv thev naus laus zis valve kev paub sib koom: Hluav taws xob txuas ntxiv kub kub ntiaj teb valve teeb meem tshwm sim
Qhov kaw ntawm lub ntiaj teb valve yog los ntawm kev ua haujlwm siab ntawm lub qia, kom lub taub hau valve thiab lub rooj zaum raug nias kom ua tiav cov sealing. Nws daim ntawv thov tau raug kaw, kuj tseem tuaj yeem kho lub valve, tab sis tsis txhob siv los ua lub pob nyem. Lub ntiaj teb valve feem ntau muaj ncaj qha los ntawm hom, Lub kaum sab xis lossis DC hom peb. Direct nres valve, Lub kaum ntse ntse nres valve, DC hom nres valve.
1. Txoj cai ntawm lub ntiaj teb valve
Qhov kaw ntawm lub ntiaj teb valve yog los ntawm kev ua haujlwm siab ntawm lub qia, kom lub taub hau valve thiab lub rooj zaum raug nias kom ua tiav cov sealing.
2, lub hom phiaj tseem ceeb ntawm lub ntiaj teb valve
Nws daim ntawv thov tau raug kaw, kuj tseem tuaj yeem kho lub valve, tab sis tsis txhob siv los ua lub pob nyem. Nres li qub tau siv ntau heev hauv cov chaw nres tsheb fais fab, tshwj xeeb tshaj yog nyob rau hauv cov kev nyab xeeb me me, thaum muab kaw zoo, feem ntau ntawm cov rooj vag li qub tau siv.
Nws qhov zoo yog: compact qauv, compact qauv, raug, yooj yim txij nkawm.
Lub ntsiab qhov tsis zoo: ntws tsis kam, qhib thiab kaw quab yuam yog qhov loj, tab sis nrog kev nce ntawm cov seem channel thiab nrawm nrawm. Yog li ntawd, nws yog ib qho nyuaj heev los ua kom ntseeg tau tias nres valve nrog ib tug loj channel seem.
3. Kev faib tawm ntawm lub ntiaj teb valve
Lub ntiaj teb valve feem ntau muaj ncaj qha los ntawm hom, Lub kaum sab xis lossis DC hom peb.
(1) direct nres valve. Ncaj nres valve qia thiab nruab nrab channel axis ntawm 90 Lub kaum ntse ntse, hom nres valve no tau siv dav hauv cov chaw tsim hluav taws xob. Raws li pom hauv daim duab 2-2.
(2) Lub kaum hom nres valve. Lub feature ntawm lub kaum sab xis valve yog qhov nruab nrab ntawm lub valve thiab tus thawj inflow mus rau 90, raws li qhia nyob rau hauv daim duab 2-3.
(3) direct tam sim no hom nres valve. Dc nres valve yog lub valve qia thiab nruab nrab channel axis ntawm lub kaum sab xis saib, raws li pom hauv daim duab 2-4.
4. Cov yam ntxwv ntawm cov qauv thiab kev saib xyuas kev siv tshuab ntawm hluav taws xob ncaj nraim los ntawm lub ntiaj teb valve
Ua raws li lub tshuab hluav taws xob ncaj nraim los ntawm lub ntiaj teb valve ua piv txwv, qhia luv luv rau cov yam ntxwv ntawm lub ntiaj teb valve thiab kev siv thev naus laus zis.
(1) Hluav taws xob ncaj-los ntawm lub ntiaj teb valve qauv.
Hluav taws xob ncaj nraim los ntawm lub ntiaj teb valve kev twb kev txuas rau lub qhov (socket) vuam, rooj vag valve txhawb thav duab thiab valve lub rooj flange kev twb kev txuas, lub qhov rooj pas nrig thiab lub rooj zaum valve sealing, los ntawm sab hauv mus rau sab nraud, kev siv thawj zaug nrog lub spare cap thiab valve rooj flange kev twb kev txuas, sab saum toj npog gasket, thiab tom qab ntawd yog cov khoom ntim, yog lub hauv paus ntsia hlau hau, sealing kev ua tau zoo yog txhim khu kev qha. Raws li pom hauv daim duab 2-2.
(2) Kev tu thiab kev siv thev naus laus zis ntawm hluav taws xob ncaj nraim los ntawm lub ntiaj teb valve.
1) Lub tshuab hluav taws xob ncaj nraim-los ntawm nres valve tsoo.
① Tom qab ua tiav daim pib ua haujlwm, xyuas kom meej tias tsis muaj dej hauv cov kav dej, tsis muaj qhov siab, koj tuaj yeem pib; (2) Npaj cov pab cuam thiab lwm yam khoom siv kev nyab xeeb ua ntej, tsim cov yeeb nkab steel scaffold, lifting point, hu rau cov neeg ua hauj lwm cov khoom siv hluav taws xob kom tshem tawm lub hwj chim ntsaws; (3) Tom qab manually qhib lub 1-2 nyees khawm ntawm lub rooj vag valve, nqa cov ntaub so ntswg hluav taws xob nrog kev qhia cov saw thiab galvanized steel hlau hlua, disassemble thiab nruab lub tshuab hluav taws xob thiab kev txhawb nqa thav duab, ceev cov bolts, thiab tshem tawm cov ntaub so ntswg kom zoo thiab nqa nws; (4) Tshem tawm cov ntsia liaj qhov rooj ntawm lub rooj vag valve cim cov menyuam thiab tshem tawm lub qhov taub kom ruaj ntseg; ⑤ Tig tus ncej kev txhawb nqa counterclockwise kom thim thiab nqa nws; (6) Disassemble thiab nruab lub fastening ntsia hlau ntawm lub disc cap, tshem tawm lub disc cap, khawb tawm cov khoom filling; ⑦ Nrog cov cuab yeej tshwj xeeb, lub hau seem rov qab, rub tawm lub qhov rooj qia thiab lub taub hau valve, lub valve foob.
2) Kev saib xyuas hluav taws xob ncaj nraim los ntawm kev nres valve.
(1) Tshawb xyuas lub rooj zaum thiab lub taub hau valve, yuav tsum du, tsis muaj kev puas tsuaj, zawj cov cim, cov pob dub thiab lwm yam tsis zoo, yog tias muaj, yuav tsum tau nqa tawm kev kho kev sib tsoo raws li qhov tsis txaus lossis kho kev sib tsoo.
(2) Txheeb xyuas lub qia valve, tsis muaj dabtsi yog khoov, puas, puas thiab lwm yam tsis zoo. Thiab cov ntsaws ruaj ruaj, yuav tsum huv si, tsis muaj qhov zawj thiab lwm yam tsis zoo, cov ntsia hlau hauv lub valve qia tsis muaj kev puas tsuaj, thiab cov txiv ntoo nrog kev sib koom tes zoo, kev sib hloov yooj yim, txwv tsis pub yuav tsum tau kho. Lub qia yuav tsum tau khoov hauv 0.1 hli, thiab qhov tob ntawm qhov hnav yuav tsum tsis pub tshaj 0.1-0.2 hli.
③ Qhov sib txawv ntawm lub qia thiab lub hau npog yuav tsum ntsuas kom raug nyob rau hauv thaj tsam ntawm 0.2 ~ 0.25mm, thiab qhov sib txawv ntawm lub rooj zaum valve thiab lub hau disc yuav tsum nyob rau hauv thaj tsam ntawm 0.2 ~ 0.3mm.
(4) Tshawb xyuas cov ntsia hlau txuas ntawm lub rooj txhawb nqa thiab lub rooj zaum, yuav tsum tsis muaj kev puas tsuaj, thiab kev sib koom ua ke yog qhov zoo. Txhua tus ntsia hlau fastening yuav tsum zoo sib xws nrog lub hau ntswj.
Qhov hnav ntawm cov txiv ntoo ntsia hlau yuav tsum tsis pub tshaj 1/3 ntawm qhov ntev ntawm cov hlau.
Txheeb xyuas cov khoom sib kis, iav, khib hnav, qhov kev puas tsuaj yuav tsum tsis pub tshaj 1/3 ntawm cov hniav tuab, cov hniav sib xyaw yuav tsum tsis txhob tawg thiab cov hniav muaj kev nyab xeeb. Xyuas seb cov kabmob dov puas puas thiab tig tsis pom kev. Los ntawm txhais tes thiab tsis siv neeg xaiv yog ib qho yooj yim thiab txhim khu kev qha, thiab cov kis tau tus mob yog cov nqi-zoo.
3) Kev sib dhos ntawm hluav taws xob ncaj-los ntawm kev nres valve. Cov txheej txheem sib dhos ntawm lub ntiaj teb hluav taws xob valve yog thim rov qab nrog cov txheej txheem disintegration.
Hluav taws xob nruam kub kub nres valve tuaj yeem muab tso rau hauv txhua txoj haujlwm ntawm cov raj xa dej, qhov nruab nrab los ntawm hauv qab mus rau sab saud. Cov khoom zoo li tsim thiab tsim raws li lub teb chaws kev lag luam tus qauv GB12235, tsim nyog qauv, txhim khu kev qha sealing, kev ua tau zoo heev, zoo nkauj zoo nkauj. Cov pa roj carbon steel ntiaj teb valve yog tsim rau cov cua kub-resistant chav thiab roj pipelines, nrog cov yam ntxwv kub-resistant. Hluav taws xob nruam kub kub ntiaj teb valve yog tsim rau txhua yam ntawm corrosive nruab nrab pipelines, nrog zoo corrosion kuj thiab txaus compressive zog. Valve lub cev cov khoom siv ntau yam ua tiav, cov khoom ntim, cov khoom siv gasket tuaj yeem xaiv tau zoo raws li kev ua haujlwm tshwj xeeb lossis cov neeg siv yuav tsum tau ua, tuaj yeem tsim nyog rau lub siab loj, ambient kub thiab nruab nrab ua haujlwm.
Hluav taws xob nruam kub kub ntiaj teb valve lub ntsiab yam ntxwv thiab kev siv lub ntsiab
1. Lub rooj vag valve thiab cov kav dej yog welded ua ke.
2, nto tsis yooj yim rau kev puas tsuaj, chafing, sealing kev ua tau zoo. Lub neej ua haujlwm ntev.
3, qauv yooj yim, muaj zog qhib thiab kaw, qhov siab me me, yooj yim txij nkawm.
4, tuaj yeem ua tau dej, chav dej, cov khoom siv kav dej, nrog rau kev ua haujlwm kub, kev kub siab ua haujlwm.
Hluav taws xob nruam kub kub nres valve muaj teeb meem
Hluav taws xob nruam kub kub nres valve tuaj yeem muab tso rau hauv txhua txoj haujlwm ntawm cov raj xa dej, qhov nruab nrab los ntawm hauv qab mus rau sab saud. Cov khoom zoo li tsim thiab tsim raws li lub teb chaws kev lag luam tus qauv GB12235, tsim nyog qauv, txhim khu kev qha sealing, kev ua tau zoo heev, zoo nkauj zoo nkauj. Cov pa roj carbon steel ntiaj teb valve yog tsim rau cov cua kub-resistant chav thiab roj pipelines, nrog cov yam ntxwv kub-resistant. Hluav taws xob nruam kub kub ntiaj teb valve yog tsim rau txhua yam ntawm corrosive nruab nrab pipelines, nrog zoo corrosion kuj thiab txaus compressive zog.
Cov yam ntxwv ntawm cov hluav taws xob tas li kub kub ntiaj teb valve tau qhia raws li hauv qab no:
① Piston valve thiab valve lub rooj zaum saum npoo yog ua los ntawm cov tshuaj tsuag tsis zoo, tiv taus hnav, tiv taus kub, tiv thaiv corrosion, tsis kam tiv taus, muaj zog thiab ruaj khov.
② Valve qia cov khoom yog siab zaus quenched steel, siab zaus quenched valve qia hardness, hnav tsis kam, abrasion tsis kam, corrosion kuj.
(3) Vim hais tias ntawm ib puag ncig kub, kev ua haujlwm siab thiab lwm yam, lub valve txoj kab uas hla hauv DN50 roj Circuit Court phaj thiab ib leeg ntws valve yog tuag forging qhov chaw, thiab cov roj Circuit Court phaj thiab ib leeg ntws valve saum DN65 yog stainless hlau castings.
④ Valve lub cev cov khoom siv ntau yam ua tiav, cov khoom ntim khoom, cov khoom siv gasket tuaj yeem xaiv tau zoo raws li kev ua haujlwm tshwj xeeb lossis cov neeg siv yuav tsum tau ua, tuaj yeem tsim nyog rau lub siab loj, ambient kub thiab nruab nrab ua haujlwm.
⑤ Ua tib zoo saib xyuas qhov nkag ntawm qhov nruab nrab thaum sib sau ua ke lub rooj vag valve, thiab sib sau ua ke nruj raws li cov kev taw qhia qhia los ntawm lub rooj vag valve inflow xub.
Qhov hluav taws xob nres valve kom deb li deb li qhov ua tau ntsug sib dhos, kav.
Post lub sij hawm: Mar-10-2023
