Daim ntawv thov Scope thiab cov kev cai ntawm lub hwj chim chaw nres tsheb li qub rau kev kho cov iav puas nyob rau hauv valve Transmission Devices (I)
Adhesive insert cov hniav txoj kev. Ua ntej yuav tsum tau tshem tawm cov hniav tawg, thiab ua tiav rau hauv dovetail zawj ntawm cov hniav hauv paus hniav, siv tib cov khoom ua cov hniav tshiab rau hauv dovetailed, koom tes nrog cov dovetail zawj ntawm lub iav, khaws 0.1 ~ 0.2 hli clearance, thiab ua tshiab machining. cov hniav, muaj qee qhov nyiaj pub dawb rau kev ua tiav, tom qab ua kom ruaj khov ntawm cov hniav tshiab thiab cov slots, ua qauv ntawm cov hniav iav, thiab tom qab ntawd ua tiav cov hniav tshiab, Kom txog rau thaum cov qauv sib txuas nrog cov hniav. Txoj kev no yog tsim rau cov iav uas tsis zoo vuam kev ua tau zoo.
Daim duab 7-9 qhia txog yuav kho cov hniav puas ntawm lub iav.
Daim duab 7-9 qhia txog yuav kho cov hniav puas ntawm lub iav
1. Kho txoj kev ntawm tus kheej cov hniav puas ntawm iav
(1) Adhesive insert txoj kev hniav. Ua ntej yuav tsum tau tshem tawm cov hniav tawg, thiab ua tiav rau hauv dovetail zawj ntawm cov hniav hauv paus hniav, siv tib cov khoom ua cov hniav tshiab rau hauv dovetailed, koom tes nrog cov dovetail zawj ntawm lub iav, khaws 0.1 ~ 0.2 hli clearance, thiab ua tshiab machining. cov hniav, muaj qee qhov nyiaj pub dawb rau kev ua tiav, tom qab ua kom ruaj khov ntawm cov hniav tshiab thiab cov slots, ua qauv ntawm cov hniav iav, thiab tom qab ntawd ua tiav cov hniav tshiab, Kom txog rau thaum cov qauv sib txuas nrog cov hniav. Txoj kev no yog tsim rau cov iav uas tsis zoo vuam kev ua tau zoo.
(2) Vuam ntxig txoj kev hniav. Txoj kev no yog tsim rau iav nrog zoo vuam kev ua tau zoo, thiab nws cov txheej txheem kho yog tib yam li cov txheej txheem ntawm kev sib txuas cov hniav.
(3) Embedded pawg surfacing txoj kev. Nyob rau hauv qhov tawg hniav drilling tapping, embedded rau ib los yog ntau tshaj bolt pawg, nrog rau surfacing txoj kev nyob rau hauv lub tawg cov hniav surfacing tshiab cov hniav, ***, ua tiav rau hauv tib cov hniav raws li tus thawj cov hniav.
2. Kev kho pob txha pob txha
Nyob rau hauv lub valve kis tau tus mob, yog hais tias lub iav tawg, nws yuav tsum tau hloov nrog ib tug tshiab spare qhov chaw. Yog tias tsis muaj cov khoom seem tshiab ib ntus, nws tuaj yeem kho tau raws li tus qauv qhia hauv daim duab 7-10.
Kev kho pob txha pob txha (1) Cov pob txha tawg ntawm cov iav tawg tau ua tiav rau hauv qhov zawj, thiab tom qab ntawd cov iav tawg tau muab tso rau hauv lub iav kom rov zoo, thiab qhov chaw vuam tsau.
(2) lub clamping zawj ntawm lub phaj muaj zog yog ua rau ntawm ob lub ntsej muag kawg ntawm lub iav ntug. Sab nraud txoj kab uas hla ntawm qhov zawj yuav tsum yog 5 hli me dua li txoj kab uas hla ntawm lub hauv paus lub voj voog, thiab sab hauv txoj kab uas hla yog me ntsis me dua lub puab txoj kab uas hla ntawm lub npoo. Qhov tob ntawm qhov zawj yog nyob ntawm qhov tuab ntawm cov iav, feem ntau ntawm 3 thiab 6 hli.
(3) Qhov loj ntawm qhov clamping zawj yuav tsum yeej, thiab lub tsheb yuav tsum ua ob lub nplhaib ntxiv dag zog. Ob lub nplhaib txhawb zog yuav tsum tau riveted thiab kho nyob rau hauv lub clamping zawj ntawm ob lub ntsej muag kawg.
Daim ntawv thov thiab cov kev cai ntawm lub hwj chim chaw nres tsheb li qub (1) tus qauv no qhia txog qib siab thiab kub ntawm lub hwj chim chaw nres tsheb li qub thiab cov kev cai dav dav ntawm cov ntaub ntawv, tsim, tshuaj xyuas, cim, ntim, khaws cia, thauj, xa cov ntaub ntawv, thiab lwm yam. muab cov lus qhia rau kev txiav txim siab. Valve cov ntaub ntawv yuav tsum raug xaiv raws li kev siv thiab kev tsim khoom; Bolts, txiv ntseej thiab lwm yam khoom siv fastener yuav tsum raug xaiv raws li kev siv lub siab thiab kub. Thaum xaiv cov khoom siv rau kev coj tus kheej ntawm lub plhaub, qhov siab tshaj plaws kev ua haujlwm kub yuav tsum tau teev nyob rau hauv Daim Ntawv Ntxiv C. Cov qauv no nthuav tawm cov qauv qis lossis yam tsawg kawg nkaus rau kev tsim valve, tab sis tsis yog qhov tsim nyog yuav tsum tau ua tiav.
1 kev
Cov qauv no qhia txog qib siab thiab kub ntawm lub hwj chim chaw nres tsheb li qub thiab cov khoom siv dav dav, tsim, tshuaj xyuas, kos npe, ntim, khaws cia, tsheb thauj mus los, xa cov ntaub ntawv, thiab lwm yam, thiab muab cov lus qhia rau kev txiav txim.
Cov txheej txheem no siv rau txhua hom li qub uas siv hauv qhov chaw nres tsheb fais fab dej qab zib hauv qab no:
- Nominal siab tsis ntau tshaj 42MPa, siab tshaj plaws kev khiav hauj lwm kub tsis ntau tshaj 450 ℃;
- Ua haujlwm siab tsis tshaj 26MPa, siab tshaj plaws ua haujlwm kub tsis tshaj 540 ℃;
- Ua haujlwm siab tsis ntau tshaj 6MPa, qhov siab tshaj plaws ua haujlwm kub tsis tshaj 570 ℃
2 Cov ntaub ntawv siv tau zoo
Cov kev cai ntawm cov ntaub ntawv hauv qab no tau muab tso rau hauv tus qauv thoob ntiaj teb no los ntawm kev siv. Tag nrho cov kev hloov kho tom ntej (tsis suav nrog errata) lossis kev hloov kho rau cov ntawv sau hnub tim tsis siv rau tus qauv thoob ntiaj teb no. Txawm li cas los xij, ob tog rau qhov kev pom zoo raws li Cov Txheej Txheem Thoob Ntiaj Teb no raug txhawb kom tshawb xyuas qhov muaj *** versions ntawm cov ntaub ntawv no. *** versions ntawm undated references siv rau lub thoob ntiaj teb Standard no.
Radiography thiab kev faib tawm zoo rau fusion welded pob qij txha ntawm cov hlau
GB / T 3985 Asbestos roj hmab ntawv
GB / T 4213-1992 Pneumatic tswj valve
GB/T 4622.1 ~ 3 Qhov txhab gasket
Hlau castings - Kev faib tawm ntawm cov duab hluav taws xob thiab qib zaj duab xis
Casting dimensional kam rau ua thiab machining pub (eqvISO 8062: 1994)
GB / T 9112-1988 Hlau yeeb nkab txoj kev, hom dav dav thiab tsis muaj
Monolithic steel yeeb nkab flanges
Butt welded steel yeeb nkab flanges
GB / T 9433-1988 Txoj kev kawm qib kawm rau kev nkag mus nrhiav thiab tsis xws li cov cim cov cim ntawm cov hlau castings
GB / T 9444-1988 Txoj kev sib nqus particle soj ntsuam thiab ntsuas zoo rau cov hlau castings
Technical specifications ntawm kub thiab siab txo li qub rau fais fab chaw nres tsheb
Specification rau qhov chaw nres tsheb fais fab tswj li qub
Hlau li qub rau flanged kev twb kev txuas - Ntev ntawm kev tsim kho (NEQ ISO 5752: 1982)
Kev sib txuas rau ntau-tig valve drives
Cov kev sib txuas rau ib nrab ntawm lub valve drives
Hlau li qub - Cov kev cai dav dav (NEQ ANSI B16.34: 1981)
Specification rau tooj liab alloy castings rau lub hom phiaj dav dav
Specification rau austenitic steel castings rau lub hom phiaj dav dav
Lub hom phiaj dav dav flanged thiab taub qab-welded steel rooj vag li qub
Universal li qub rau flanged steel ntiaj teb li qub thiab nqa kos li qub
Lub hom phiaj dav dav - steel viav vias kos li qub
Valves rau lub hom phiaj dav dav nrog flanged thiab taub qab-welded steel pob li qub
Cov kev cai dav dav rau kev nyab xeeb li qub (EQV ISO 4126: 1984)
Kev Nyab Xeeb Kev Nyab Xeeb Kev Ntsuas Kev Ntsuas (NEQ ANSI / ASTM PTC 25.3: 1976)
Spring-loaded kev nyab xeeb li qub (NEQ JIS B8210: 1978)
Siab txo li qub - Cov kev cai dav dav
Siab txo li qub - Kev ntsuas kev ua tau zoo
Pilot hom siab txo li qub
Cov qauv ntev ntawm cov li qub
Kev cai rau cov yeeb nkab flanges (NEQ DIN 2535 ~ 2547, DIN 2573 ~ 2637)
JB / T106 valve logo thiab cov cim xim
JB/T 1613-1993 Boiler siab ntsiab vuam specification
JB/T 2203-1999 Caij nplooj ntoos hlav kev nyab xeeb valve siv ntev
JB/T 2205-2000 Siab txo valve siv ntev
JB/T 4018 fais fab chaw nres tsheb valve qauv formulation method
JB / T 5263-1991 Kev qhia tshwj xeeb rau steel castings rau lub hwj chim chaw nres tsheb li qub (NEQ ANSF / ASTM A 217M)
JB/T 6900-1993 ntws valve
JB/T 7370 hloov tau graphite braided packing
JB / T 7927-1999 Cov yam ntxwv zoo yuav tsum muaj rau cov hlau castings ntawm li qub
JB / T 8219-1999 Hluav taws xob actuators rau cov txheej txheem kev ntsuas thiab tswj cov tshuab
Specification rau cov khoom siv hluav taws xob rau cov li qub
Specification rau cov khoom siv hluav taws xob rau flameproof li qub
JB/T 9624-1999 Specification rau kev nyab xeeb valve ntawm chaw nres tsheb fais fab
JB / T 9625-1999 Kev qhia tshwj xeeb rau siab steel castings rau boiler piping accessories
JB/T 9626-1999 Specification rau boiler forgings
JC/T 67 roj hmab asbestos packing
JC/T 68 roj impregnated asbestos packing
Sdgj6-1990 Cov kev cai rau kev ntxhov siab suav ntawm cov kav dej hauv cov tshuab hluav taws xob thermal
3 Cov ntsiab lus thiab cov ntsiab lus
Cov ntsiab lus thiab cov ntsiab lus hauv qab no siv rau tus qauv thoob ntiaj teb no.
Kev ntsuas kub-siab
Ib tug kuj siab tso cai khiav hauj lwm siab ntawm cov khoom xaiv raws li qhia los ntawm gauge siab ntawm ib tug tshwj xeeb kev khiav hauj lwm kub.
4 Cov Lus Cog Tseg
Txhawm rau ua kom yooj yim rau tus neeg yuav khoom xaj, rooj A.1 hauv Cov Ntawv Ntxiv A muab cov lus qhia yooj yim kev txiav txim siab rau kev siv, thiab Table A.2 muab cov lus qhia tshwj xeeb rau kev txiav txim rau ntau hom li qub.
Siab - chav kawm kub
Siab - chav kawm kub rau ntau yam khoom siv tau teev tseg hauv Cov Ntawv Ntxiv B.
6 Kev Xav Tau
6.1 Cov kev cai dav dav
6.1.1 Kev tsim cov li qub yuav tsum ua kom tau raws li qhov xav tau ntawm kev nyab xeeb thiab kev ntseeg tau.
6.1.2 Ntxiv rau qhov ua tau raws li qhov yuav tsum tau ua ntawm tus qauv no, lub hwj chim chaw nres tsheb li qub yuav tsum ua raws li cov qauv hauv qab no:
A) Hlau li qub yuav tsum ua raws li qhov yuav tsum tau ua ntawm GB / T 12224-1989;
B) Lub rooj vag li qub yuav tsum ua raws li cov kev cai ntawm GB / T 12234-1989;
C) Globe li qub thiab kos li qub yuav tsum ua raws li cov kev cai ntawm GB / T 12235-1989 thiab GB / T 12236-1989;
D) Pob li qub yuav tsum ua raws li cov kev cai ntawm GB / T 12237-1989;
E) Kev nyab xeeb li qub yuav tsum ua raws li qhov yuav tsum tau ua ntawm GB / T 12241-1989, GB / T 12242-1989, GB / T 12243-1989 thiab JB / T 9624-1999;
F) Siab txo li qub yuav tsum ua raws li qhov yuav tsum tau ua ntawm GB / T 12244-1989, GB / F 12245-1989 lossis GB / T 12246-1989;
G) Qhov kub thiab siab txo valve yuav tsum ua raws li cov kev cai ntawm GB / T 10868-1989;
H) Lub valve tswj yuav tsum ua raws li cov kev cai ntawm GB / T 10869-1989;
I) Blowdown li qub yuav tsum ua raws li JB/T 6900-1993;
J) Lub tshuab hluav taws xob valve yuav tsum ua raws li JB / T8528-1997AK JB / T8529-1997;
K) Lub valve hluav taws xob actuator yuav tsum ua raws li cov kev cai ntawm JB/T 8219-1999;
L) Valve pneumatic actuators yuav tsum ua raws li cov kev cai ntawm GB / T 4213-1992.
6.1.3 Thaum lub tshuab tshiab (xws li cov qauv tshiab, cov khoom siv tshiab, cov txheej txheem tshiab, thiab lwm yam) tau txais kev pom zoo thiab cov kev cai ntawm tus qauv no tsis raug them, nws yuav tsum tau txais kev pom zoo tom qab kev sim tsim nyog lossis kev ntsuam xyuas tsim nyog thiab pom zoo los ntawm tus neeg yuav khoom. .
6.2 khoom
6.2.1 Valve cov ntaub ntawv yuav tsum raug xaiv raws li kev siv thiab kev tsim khoom; Bolts, txiv ntseej thiab lwm yam khoom siv fastener yuav tsum raug xaiv raws li kev siv lub siab thiab kub. Thaum xaiv cov khoom siv rau cov kabmob ntawm lub plhaub, qhov siab tshaj plaws kev khiav hauj lwm kub yuav tsum tau teev nyob rau hauv Cov Ntawv Ntxiv C. Thov xa mus rau Cov Ntawv Ntxiv D rau cov khoom siv surfacing thiab kev xaiv hardness.
6.2.2 Cov ntaub ntawv thiab cov khoom siv vuam siv rau cov kabmob ntawm lub valve yuav tsum ua raws li cov qauv hauv lub tebchaws, cov qauv kev lag luam lossis cov qauv khoom siv tau teev tseg hauv daim ntawv cog lus. Chav tsev tsim khoom yuav tsum tau lees paub qhov zoo ntawm cov ntaub ntawv thiab muab cov ntawv pov thawj zoo. Cov ntaub ntawv hlau thiab vuam hlau chips yuav tsum muaj lub zog, toughness, theem nrab ntev thiab zoo qaug zog thiab corrosion kuj nyob rau hauv cov kev pab cuam.
6.2.3 Steel castings yuav tsum ua raws li JB/T 9625-1999 los yog JB/T 5263-1991.
6.2.4 Forgings yuav tsum ua raws li JB/T 9626-1999.
6.2.5 Austenitic steel castings yuav tsum ua raws li cov kev cai ntawm GB / T 12230-1989.
6.2.6 Copper alloy castings yuav tsum ua raws li cov kev cai ntawm GB / T 12225-1989.
Post lub sij hawm: Lub Xya hli ntuj-26-2022
