Pipeline valve installation yuav tsum ua li cas nrog cov khoom siv tub yees pipeline valve "khiav, khiav, drip, xau"?
Dab tsi yog qhov yuav tsum tau ua rau kev teeb tsa cov yeeb nkab li qub? Nws puas tsim nyog kom tau raws li qee qhov kev xav tau ntawm kev teeb tsa?
1. Thaum txhim kho, xyuam xim rau cov kev taw qhia ntawm qhov ntws ntawm qhov nruab nrab yuav tsum ua raws li cov kev taw qhia ntawm xub xub ntawm lub valve lub cev.
2. Kos lub valve yuav tsum tau muab ntsia ua ntej lub condensate nkag mus rau hauv cov kav dej loj rov qab tom qab lub ntxiab los tiv thaiv cov condensate rov qab los.
3, lub pas nrig valve tsis tuaj yeem faus cov cuab yeej, nyob rau hauv rooj plaub ntawm qia corrosion. Nyob rau hauv lub gutter nrog npog phaj, lub valve yuav tsum tau muab tso rau hauv qhov chaw uas kev saib xyuas thiab kev soj ntsuam thiab kev ua haujlwm yooj yim.
4, qee qhov yuav tsum tau kaw thaum cov dej tawm tsam qhov cuam tshuam me me los yog tsis muaj dej tawm tsam cov kav dej, qhov kev xaiv zoo tshaj plaws ntawm qeeb kaw npauj npaim valve, qeeb kaw viav vias kos valve.
5. Thaum txhim kho threaded li qub, nws yog ib qho tsim nyog los xyuas kom meej tias cov xov tsis zoo, thiab coated nrog ntim ntim raws li cov xov xwm sib txawv. Thaum nruj, nws yog ib qho tsim nyog yuav tsum tau ua kom sib npaug kom tsis txhob muaj kev puas tsuaj rau lub valve thiab valve accessories.
6. Thaum txhim kho lub qhov (socket) hom vuam valve, lub qhov (socket) yuav tsum muaj qhov sib txawv ntawm 12m los tiv thaiv cov thermal stress thaum lub sij hawm vuam los ntawm kev nthuav dav thiab tawg qhov vuam.
7. Thaum ntsia rau ntawm txoj kab rov tav, lub qia yuav tsum tau vertically upward los yog qaij rau ib lub kaum sab xis, thiab lub qia tsis pub rau nruab rau hauv qab.
8, lub pob tw thiab cov kav dej txuas txuas txuas hauv qab yuav tsum siv argon arc vuam vuam, vuam yuav tsum qhib lub valve kom tiv thaiv overheating deformation.
9, ua ntej txhim kho lub ntxiab, nco ntsoov siv lub zog siab los ntxuav cov kav dej, cov khib nyiab hauv cov kav dej.
10, chav ntxiab tsis nruab hauv series.
11, diaphragm hom check valve feem ntau yog siv los ua kom yooj yim los tsim cov dej tawm tsam ntawm lub raj xa dej, vim tias lub diaphragm tuaj yeem ua tau zoo heev los tshem tawm qhov nruab nrab countercurrent thaum dej tawm tsam, tab sis txwv los ntawm qhov kub thiab txias, feem ntau siv hauv chav tsev kub siab. cov kav dej.
12, lub ntxiab yuav tsum tau muab ntsia ua ntej lub lim, kom ntseeg tau tias cov cuab yeej tsis thaiv cov yeeb nkab khib nyiab, tsis tu ncua ntxuav lub lim.
13. Valves txuas nrog flanges thiab threads yuav tsum raug kaw thaum lub sij hawm installation.
14, condensate ntws kev taw qhia yuav tsum ua raws li cov cuab yeej teeb tsa xub cim.
15, lub ntxiab yuav tsum tau muab tso rau hauv qhov hluav taws xob qis tshaj plaws ntawm cov khoom siv, kev tso dej raws sij hawm, kom tsis txhob muaj cov kav dej tsis zoo.
16. Thaum txhim kho flanged li qub, ob lub flange kawg yuav tsum yog tib yam thiab concentric.
17, ua ntej thiab tom qab lub ntxiab rau nruab lub valve, yooj yim cuab txhua lub sij hawm tuaj tos kho.
18, mechanical ntxiab yuav tsum tau ntsia horizontally.
19, pom tias lub tshuab nqus tsev vacuum, kom lub sijhawm tso tawm thiab ntxuav lub lim, raws li kev siv tiag tiag ntawm kev soj ntsuam xyuas, thaum kho qhov yuam kev txhua lub sijhawm.
20, tsis txhob ua rau lub check valve dais hnyav nyob rau hauv lub raj xa dej, loj kos valve yuav tsum ** * kev txhawb nqa, kom nws tsis cuam tshuam los ntawm lub siab tsim los ntawm cov yeeb nkab system.
21. Lub condensate rov qab lub ntsiab yeeb nkab tom qab lub ntxiab tsis tuaj yeem nce, uas yuav ua rau kom rov qab siab ntawm lub ntxiab.
22. Yog tias cov cuab yeej tsis tau nruab rau ntawm qhov qis tshaj ntawm cov khoom siv, qhov rov qab khoov yuav tsum tau muab ntxiv rau ntawm qhov qis tshaj ntawm qhov hluav taws xob dej, thiab qib condensate yog nce ua ntej txhim kho lub ntxiab kom tsis txhob muaj qhov tsis zoo.
23, cov kav dej ntawm lub cuab yuav tsum tsis txhob muab tso rau hauv dej.
24. Yog tias muaj cov condensate rov qab los tom qab lub ntxiab, cov kav dej ntawm lub ntxiab yuav tsum tau txuas nrog cov yeeb nkab loj saum cov yeeb nkab loj rov qab kom txo qis rov qab siab thiab tiv thaiv reflux.
25. Txhua yam khoom siv yuav tsum tau nruab nrog nws lub cuab.
30, nqa hom kab rov tav nrov plig plawg kos valve yuav tsum tau ntsia rau hauv kab rov tav raj.
31, ntsia tau rau hauv lub tshuab nqus dej twj tso kua mis, cov yeeb nkab tseem ceeb los teeb tsa ib qho ze ntawm lub vojvoog ntawm lub ntsiab yeeb nkab condensate dej sau zoo, thiab tom qab ntawd coj mus rau lub ntxiab nrog cov yeeb nkab me me.
32, yog tias muaj condensate rov qab los tom qab lub ntxiab, nws yog ib qho tsim nyog yuav tsum cais cov raj xa dej rov qab ntawm cov qib sib txawv.
33, nqa hom ntsug nrov plig plawg kos valve yuav tsum tau nruab vertically.
34, cov cuab yeej cuab tam tsis siv rau lub sijhawm ntev, yuav tsum tau tshem tawm cov dej ntws tawm, cov dej hauv qhov tso tawm, kom tsis txhob khov.
35, cov cuab yeej ntsuas cua sov ua ntej xav tau ntau tshaj li ib lub 'meter' ntawm thermal rwb thaiv tsev ntawm cov yeeb nkab supercooled, lwm yam cuab yeej cuab tam yuav tsum nyob ze li sai tau rau cov khoom siv.
Yuav ua li cas nrog cov khoom siv tub yees pipeline valve "khiav, khiav, poob, xau"? Txoj hauv kev zoo tshaj plaws los daws qhov "khiav, npuas, ntws, ntws" ntawm cov tub yees yeeb nkab li qub yog tiv thaiv lawv. Yuav ua li cas thiaj nrhiav tau qhov teeb meem thiab zam kev sib tsoo ua ntej lub valve tsis ua haujlwm? Tom qab ntawd, peb yuav tsum ua cov hauv qab no:
Txoj hauv kev zoo tshaj plaws los daws qhov "khiav, npuas, ntws, ntws" ntawm cov tub yees yeeb nkab li qub yog tiv thaiv lawv. Yuav ua li cas thiaj nrhiav tau qhov teeb meem thiab zam kev sib tsoo ua ntej lub valve tsis ua haujlwm? Tom qab ntawd, peb yuav tsum ua cov hauv qab no:
1, tiv thaiv valve dej to, chav dej
Tag nrho cov li qub yuav tsum tau kuaj hydraulically hauv qib sib txawv tom qab nkag mus rau hauv lub hoobkas.
Valves uas yuav tsum tau disassembled yuav tsum yog av.
Nyob rau hauv tus txheej txheem ntawm overrepair, nws yog ib qhov tsim nyog yuav tau ua tib zoo xyuas seb lub yias cag ntxiv thiab seb lub lauj kaub hauv paus caj pas yog nruj.
Valve ua ntej kev teeb tsa yuav tsum xyuas seb puas muaj plua plav, xuab zeb, hlau oxide thiab lwm yam khoom siv hauv lub valve. Yog hais tias ib yam ntawm cov saum toj no sundries yuav tsum tau ntxuav ua ntej installation.
Tag nrho cov li qub yuav tsum tau haum nrog cov qib tsim nyog spacers ua ntej kev teeb tsa.
Thaum txhim kho lub qhov rooj flange, cov fasteners yuav tsum tau nruj nreem, thiab thaum tuav lub flange bolts, lawv yuav tsum tau nruj nreem nyob rau hauv ib tug symmetrical kev taw qhia.
Nyob rau hauv qhov txheej txheem ntawm VALVE installation, tag nrho cov li qub yuav tsum raug ntsia raws li qhov system thiab siab, thiab random thiab mix installation yog nruj me ntsis txwv tsis pub. Rau lub hom phiaj no, tag nrho cov li qub yuav tsum tau suav thiab sau tseg raws li qhov system ua ntej kev teeb tsa.
2. Tiv thaiv kom tsis txhob muaj roj av thiab roj khiav
Lub kaw lus nrog roj cia tank yuav tsum tau ua tib zoo xyuas thiab ntxuav ua ntej kev teeb tsa.
Kev ntsuas hydrostatic yuav tsum tau nqa tawm ntawm cov khoom siv nrog roj txias.
Hydrostatic xeem thiab pickling yuav tsum tau ua rau cov roj pipeline system.
Tag nrho cov flanged pob qij txha los yog nyob sib txuas nrog hlau buckles yuav tsum tau haum nrog roj-resistant roj hmab MATS los yog whetstone MATS thaum lub sij hawm roj kab installation.
Cov ntsiab lus xau ntawm cov roj system feem ntau yog nyob rau hauv lub flange thiab threaded nyob pob qij txha, yog li cov bolts yuav tsum tau nruj sib npaug zos thaum txhim kho lub flange. Tiv thaiv kom tsis txhob nruj los yog tsis nruj qhov xwm txheej.
Nyob rau hauv cov txheej txheem ntawm cov roj pom, cov neeg ua haujlwm tsim kho yuav tsum tau ua raws li lawv txoj haujlwm txhua lub sijhawm, thiab nws yog txwv tsis pub tshem tawm cov ncej thiab hlua lub ncej.
Hauv kev hloov cov ntawv lim roj yog tsim nyog los nres cov roj lim mechanism.
Thaum txhim kho cov roj lim ib ntus txuas cov yeeb nkab (** yas pob tshab hose), qhov sib koom ua ke yuav tsum tau khi nrog cov hlau lead kom ruaj khov kom tsis txhob muaj qhov tshwm sim ntawm dhia thiab khiav roj tom qab cov roj lim tau khiav mus ntev.
Kev xa cov neeg ua haujlwm tsim kho lub luag haujlwm los saib xyuas kev ua haujlwm ntawm cov roj lim.
Ua ntej cov roj ncig ntawm lub tshuab hluav taws xob pabcuam roj pib, Lub Tsev Haujlwm Saib Xyuas Kev Ua Haujlwm yuav tsum npaj cov ncauj lus kom ntxaws qhia rau cov neeg ua haujlwm saib xyuas cov roj ncig ntawm lub cav pabcuam.
3, tiv thaiv cov khoom siv thiab cov yeeb nkab haum sib koom ua ke ntawm npuas npuas, bubbling, dripping, to
Rau flange gaskets siab tshaj 2.5Mpa, hlau winding gaskets raug saws.
1.0Mpa-2.5Mpa flange gasp, siv asbestos gasp, thiab coated nrog cov hmoov txhuas dub.
Lub flange gasket ntawm cov kav dej hauv qab 1.0Mpa yuav tsum yog roj hmab gasket thiab coated nrog cov hmoov txhuas dub.
Dej twj tso kua mis disc hauv paus yog siv PTFE fiber ntau composite disc cag.
Rau qhov ntim ntawm cov pa luam yeeb thiab cov pa roj carbon monoxide, cov hlua asbestos yuav tsum tau sib tw thiab ntxiv rau qhov sib koom ua ke ntawm ib zaug. Nws yog nruj me ntsis txwv tsis pub ntxiv nws forcefully tom qab zawm cov screws.
4. Tiv thaiv kom tsis txhob muaj lub valve
Kev tsim kho cov yeeb nkab, yuav tsum tsim kom muaj kev paub zoo, ua tib zoo ntxuav cov oxide hlau thiab cov yeeb nkab phab ntsa, tsis txhob tso cov khoom siv, xyuas kom cov yeeb nkab phab ntsa huv si.
Ua ntej tshaj plaws, xyuas kom meej tias cov li qub nkag mus rau hauv qhov chaw yuav tsum yog 100% hydrostatic kuaj.
Valve GRINDING yuav tsum tau ua tib zoo nqa tawm, TXHUA VALVES (Tshwj tsis yog IMPORTED VALVES) yuav tsum tau xa mus rau Pab Pawg Sib Tsoo rau kev tshuaj xyuas kev sib tsoo, kev sib tsoo, thiab kev siv lub luag haujlwm, SELF-consciously ua cov ntaub ntawv thiab cov cim, yooj yim rau trace. Tseem ceeb li qub yuav tsum tau teev nyob rau hauv kev nthuav dav rau qhov kev lees txais thib ob, kom "stamping, printing, record" yuav tsum.
Lub qhov rooj dej sab saud thiab qhov rooj tawm ntawm lub boiler yuav tsum tau txiav txim ua ntej. Tsuas yog cov li qub no tau tso cai qhib thaum lub sijhawm kuaj hydrostatic. Lwm cov valve yuav tsum tsis txhob qhib ntawm lub siab, thiaj li tiv thaiv lub valve tseem ceeb.
Thaum cov yeeb nkab ntws tawm, nws yuav tsum qhib thiab kaw maj mam kom tsis txhob muaj kev puas tsuaj rau lub qhov rooj tub ntxhais.
5, yog tias lub valve tau xau, yuav ua li cas?
Nrhiav qhov laj thawj, tshuaj zoo!
Kev nqus ntawm lub cev thiab lub kaus mom
Yog vim li cas:
Cam khwb cia hlau casting zoo tsis siab, lub valve lub cev thiab lub valve npog lub cev muaj trachoma, xoob lub koom haum, slag thiab lwm yam tsis xws luag;
Hnub khov khov;
Weld tsis zoo, slag inclusion, unwelded, kev ntxhov siab tawg thiab lwm yam tsis xws luag;
Lub cam khwb cia hlau valve raug puas los ntawm ib qho khoom hnyav.
Txoj kev tu:
Txhawm rau txhim kho qhov zoo ntawm casting, ua ntej kev teeb tsa hauv kev nruj raws li cov kev cai ntawm lub zog kuaj;
Qhov kub ntawm lub valve ntawm 0 ℃ thiab qis dua 0 ℃, yuav tsum tau khaws cia kub los yog sib tov, tsis txhob siv lub valve yuav tsum tau muab tshem tawm dej;
Lub vuam seam ntawm lub cev thiab lub valve npog tsim los ntawm vuam yuav tsum tau ua raws li cov kev cai ntawm kev ua haujlwm vuam, thiab kev kuaj xyuas qhov tsis zoo thiab lub zog yuav tsum tau ua tom qab vuam;
TSIS TXAUS SIAB RAU HAUV LUB SIJ HAWM HAUV LUB VALVE. Nws tsis raug tso cai rau ntaus lub cam khwb cia hlau thiab tsis yog hlau valve nrog rauj. Lub installation ntawm txoj kab uas hla loj valve yuav tsum tau txais kev txhawb nqa.
Kev xau ntawm kev ntim khoom
Valve to, packing accounted rau ib tug loj feem.
Yog vim li cas:
Kev xaiv ntim tsis raug, tsis tiv taus qhov nruab nrab corrosion, tsis tiv taus lub siab siab lossis lub tshuab nqus tsev vacuum, kub kub lossis kub siv;
Kev ntim khoom tsis raug ntsia kom raug, muaj qee qhov tsis xws luag xws li hloov qhov me me nrog qhov loj, lub helix winding sib koom ua ke tsis zoo, lub siab nruj thiab qis qis.
Cov ntim khoom muaj hnub nyoog thiab poob elasticity dhau qhov kev pab cuam lub neej;
Valve qia raug tsis siab, khoov, corrosion, hnav thiab lwm yam tsis xws luag;
Tus naj npawb ntawm cov nplhaib ntim tsis txaus, lub caj pas tsis nias;
Lub caj pas, bolts, thiab lwm qhov chaw raug puas ntsoog, kom lub caj pas tsis tuaj yeem compressed;
Kev ua haujlwm tsis raug, kev siv zog ntau dhau, thiab lwm yam;
Gland skew, caj pas thiab qia qhov sib txawv me me los yog loj dhau, ua rau qia hnav, ntim puas.
Txoj kev tu:
Cov khoom siv thiab hom ntim yuav tsum raug xaiv raws li kev ua haujlwm;
Raws li cov kev cai ntawm kev txhim kho kom raug, lub hauv paus ntawm lub lauj kaub yuav tsum tau muab tso rau thiab nias ib ncig ntawm lem, qhov sib koom ua ke yuav tsum yog 30 ℃ lossis 45 ℃;
Kev ntim khoom nrog lub neej ua haujlwm ntev dhau, kev laus thiab kev puas tsuaj yuav tsum tau hloov raws sijhawm;
Valve qia dabtsi yog khoov, hnav yuav tsum ncaj, kho, kev puas tsuaj loj yuav tsum tau hloov lub sijhawm;
Cov ntim khoom yuav tsum tau muab ntsia raws li cov lus teev tseg, lub caj pas yuav tsum sib npaug thiab sib npaug, lub tes tsho siab yuav tsum muaj ntau tshaj 5 hli pretightening kis;
Lub caj pas puas, bolts thiab lwm yam yuav tsum tau kho lossis hloov lub sijhawm;
Yuav tsum ua raws li cov txheej txheem kev khiav hauj lwm, tshwj tsis yog muaj kev cuam tshuam ntawm tes, nrog rau kev ua haujlwm nrawm nrawm;
Lub caj pas bolt yuav tsum tau nruj nreem sib npaug thiab symmetrically. Yog tias qhov sib txawv ntawm lub caj pas thiab lub valve qia me dhau, qhov sib txawv yuav tsum tau nce kom tsim nyog. Yog tias qhov sib txawv ntawm caj pas thiab qia loj heev, nws yuav tsum tau hloov.
Cov dej ntws tawm ntawm qhov sealing nto
Yog vim li cas:
Sealing nto sib tsoo tsis sib xws, tsis tuaj yeem tsim ib txoj kab ze;
Kev sib txuas ntawm lub qia thiab qhov kaw yog raug tshem tawm, tsis ncaj los yog hnav;
Valve qia dabtsi yog khoov los yog sib dhos tsis raug, yog li ntawd lub kaw qhov yog skewed los yog tsis nyob rau hauv nruab nrab;
Kev xaiv tsis raug ntawm sealing nto khoom zoo los yog tsis raws li kev ua haujlwm ntawm lub valve xaiv.
Yog vim li cas:
Kev ua haujlwm tsis zoo, kom cov khoom kaw yog daig lossis ntau tshaj qhov chaw tuag, qhov kev sib txuas yog puas thiab tawg;
Kaw qhov kev sib txuas tsis ruaj khov, xoob thiab poob;
Kev xaiv ntawm cov khoom siv sib txuas tsis raug, tsis tuaj yeem sawv qhov corrosion ntawm nruab nrab thiab txhua yam hnav.
Txoj kev tu:
Kev ua haujlwm kom raug, kaw lub valve tsis tuaj yeem yuam ntau dhau, qhib lub valve tsis tuaj yeem tshaj qhov chaw tuag, lub valve qhib tag nrho, lub log yuav tsum thim rov qab me ntsis;
Kev sib txuas ntawm qhov kaw thiab lub qia valve yuav tsum ruaj, thiab cov xov txuas yuav tsum yog ib feem ntawm qhov backstop;
Cov fasteners siv rau kev sib txuas ntawm qhov chaw kaw thiab lub qia valve yuav tsum tiv taus corrosion ntawm qhov nruab nrab thiab muaj qee yam khoom siv zog thiab hnav tsis kam.
Post lub sij hawm: Oct-28-2022
