1. Rooj vag valve kho
1.1 Lub ntsiab kev txwv tsis pub tshaj:
DN ： NPS1 ”~ NPS28”
PN ： CL150 ~ CL2500
Cov khoom siv ntawm qhov chaw tseem ceeb: ASTM A216 WCB
Qia — ASTM A276 410; Lub rooj — ASTM A276 410;
Sealing ntsej muag — VTION
1.2 Cov Cai Siv Tau thiab Cov Qauv ： API 6A 、 API 6D
1.3 Cov txheej txheem ntawm lub valve (saib Daim Duab 1)
Daim duab 1 Lub rooj vag valve
2. Kev tshuaj xyuas thiab tswj xyuas
2.1 ： Soj ntsuam cov txheej txheem sab nraud:
Kuaj xyuas sab nraud ntawm lub pob kom txhawm rau kuaj seb puas muaj kev puas tsuaj, thiab tom qab ntawv suav; Sau ntawv cia.
2.2 Tshawb xyuas lub plhaub thiab sib khi:
Kuaj seb puas muaj xwm txheej dab tsi thiab ua cov ntaub ntawv kuaj.
3. Kev rho tawm ntawm lub Valve
Lub kaw pob yuav tsum raug kaw ua ntej kev txiav txim siab thiab xoob lub pob txuas. Yuav tsum xaiv qhov tsim nyog tsis-kho tau kev ntsuas txog rab phom loj kom xoob pob tw ， Cov txiv ntoo yuav raug puas yooj yim los ntawm cov ntsuas tsim tawm.
Cov nplauv zoo nkauj thiab tawv ntoo yuav tsum tau muab so nrog kerosene lossis kua xeb tshem tawm; Txheeb ntsia hlau xov cov kev taw qhia thiab tom qab ntawd ntswj qeeb. Cov seem uas tau txiav tawm yuav tsum raug suav, cim thiab khaws cia kom zoo. Qia thiab lub rooj vag disc yuav tsum muab tso rau ntawm kev thaiv kom tsis txhob kos.
3.1 Kev Tu
Xyuas kom cov khoom seem raug muab ntxuav kom huv huv los ntawm txhuam nrog roj, roj av, lossis tshuaj ntxuav tu.
Tom qab ntxuav tas, nco ntsoov cov khoom seem tsis-roj & xeb.
3.2 Kev kuaj xyuas ntawm cov khoom seem.
Tshawb xyuas txhua qhov khoom seem thiab ua ntaub ntawv sau cia.
Ua ib qho kev npaj kho kom haum raws li kev soj ntsuam.
4. Kho cov khoom seem
Kho cov khoom seem raws li kev soj ntsuam thiab kev npaj kho; hloov cov khoom seem nrog tib cov ntaub ntawv yog tias xav tau.
4.1 Kho ntawm lub rooj vag:
① Ruam ntawm T-slot ： Vuam siv tau rau hauv T-slot puas kho, Kho T-slot cuam tshuam, Weld ob sab nrog lub zog txhawb nqa. Surfacing welding yuav siv tau los kho T-slot hauv qab. Los ntawm kev siv tshuaj kho kub tom qab vuam siv txhawm rau txhawm rau tshem tawm kev ntxhov siab thiab tom qab ntawd siv PT nkag mus kuaj.
EpQhov uas tshem tawm ：
Nquag yog qhov sib txawv lossis qhov cuam tshuam loj ntawm lub rooj vag sealing lub ntsej muag thiab Rooj Seat ntsej muag. Yog tias thaum uas tig mus sib cais valve poob, tuaj yeem weld rau sab saum toj thiab hauv qab npoo, tom qab ntawd, ua cov txheej txheem sib tsoo.
4.2 Kho ntawm lub ntsej muag ntim
Lub hauv paus tseem ceeb ntawm valve sab hauv paim yog sealing ntsej muag puas ntsoog. Yog tias kev puas tsuaj loj heev, xav tau weld, machining thiab grind sealing ntsej muag. Yog tias tsis loj, tsuas yog sib tsoo. Kev sib tsoo yog qhov tseem ceeb.
a. Lub hauv paus ntsiab lus ntawm kev sib tsoo ：
Koom nrog nplaim ntawm kev sib tsoo ua ke nrog workpiece. Txhaj tshuaj abrasive rau hauv qhov sib txawv nruab nrab ntawm cov chaw, thiab tom qab ntawd txav cov cuab yeej sib tsoo kom zom.
b. Sib tsoo ntawm lub rooj vag sealing ntsej muag ：
Sib tsoo hom: hom kev tuav haujlwm
Ua pa ntxig rau daim phaj kom ci, muab tso rau ntawm daim phaj, thiab tom qab tig mus tsoo thaum sib tsoo ncaj lossis "8".
4.3 Kho ntawm qia
a. Yog tias ib qho khawb ntawm lub ntsej muag lub ntsej muag lossis lub ntsej muag tsis tuaj yeem phim tus qauv tsim, lub ntsej muag sib khi yuav tsum raug kho. Kho cov qauv: kev sib tsoo tiaj tiaj, Sib tsoo lub voj voog 、 Daim ntaub sib tsoo 、 tshuab sib tsoo thiab Lub khob zeb sib tsoo ；
b. Yog tias lub qia valve khoov> 3% ， cov txheej txheem Txoj kev kho ncaj qha los ntawm lub chaw nruab nrab tsis sib tsoo lub tshuab kom paub tseeb tias qhov chaw ua tiav thiab ua kom pom kev tawg. Txoj kev ncaj: Txoj kev nruj ncaj ncaj ening Txias ncaj ncaj thiab ua kom ncaj kub.
c. Ntsia taub hau kho
Qia taub hau txhais tau hais tias seem ntawm qia (qia kheej, qia saum toj kawg nkaus, npoo npoo sab saum toj, txuas xov sib txuas thiab lwm yam) txuas nrog qhib-thiab- kaw qhov chaw. Txoj cai kho: txiav, vuam, ntxig ntiv nplhaib, ntxig ntsaws thiab lwm yam.
d. Yog tias tsis tuaj yeem ua tau raws li qhov yuav tsum tau kuaj, yuav tsum rov tsim nrog cov khoom qub.
4.4 Yog ib qho kev puas tsuaj nrog nplaim flange ntawm ob sab ntawm lub cev ， yuav tsum ua cov haujlwm machining kom phim cov qauv ua.
4.5 Ob tog ntawm lub cev RJ txuas, yog tias tsis tuaj yeem ua tau zoo raws li cov qauv xav tau tom qab kho, yuav tsum tau welded.
4.6 Hloov kev hnav ntawm ntu
Cov khoom hnav muaj xws li gasket, ntim, O-ring thiab lwm yam. Npaj cov khoom siv raws li kev yuav tsum tau ua txij nkawm thiab sau ntawv tseg.
5. Sib dhos thiab teeb tsa
5.1 Kev Npaj ： Npaj kho cov khoom seem, gasket, ntim, cov khoom siv sib txuas. Tso tag nrho cov seem; tsis txhob tso hauv av.
5.2 Kev kuaj xyuas kev ua kom huv spare Cov khoom siv tu (kho kom huv, khi, qia, txiv ntseej, lub cev, pob tw, lub cuab khuam thiab lwm yam) nrog Kerosene, roj av lossis tshuaj tua kab. Nco ntsoov tias tsis muaj roj thiab xeb.
5.3 Nruab ：
Thaum xub thawj, kos lub indentation ntawm qia thiab rooj vag sealing lub ntsej muag paub meej tias qhov sib txuas;
Ua kom huv si, so lub cev, lub kaus mom, lub rooj vag, lub ntsej muag sib khi kom huv si, Nruab cov khoom siv hauv seem kom nruj thiab ua kom nruj rau lub pob tw.
Sijhawm post: Nov-10-2020