Yuav ua li cas kho cov li qub?

Yog tias lub valve xau, ua ntej peb yuav tsum nrhiav qhov ua rau lub valve leakage, thiab tom qab ntawd tsim cov phiaj xwm kho lub valve raws li qhov sib txawv.Cov hauv qab no yog cov feem ntau valve leakage ua thiab daws.

1.Lub cev thiab lub kaus mom Leaks

Yog vim li cas:

①Qhov zoo ntawm casting tsis siab, thiab lub cev thiab lub kaus mom muaj qhov tsis xws luag xws li hlwv, xoob qauv thiab slag suav nrog;

② khov tawg;

③ Cov vuam tsis zoo, muaj qhov tsis xws luag xws li slag suav nrog, tsis siv vuam, kev ntxhov siab tawg, thiab lwm yam;

④ Lub cam khwb cia hlau yog puas tom qab raug ntaus los ntawm ib yam khoom hnyav.

Txoj kev tu:

① Txhim kho qhov zoo ntawm casting, thiab ua tiav qhov kev ntsuam xyuas lub zog nruj raws li cov cai ua ntej kev teeb tsa;

②Rau li qub ua haujlwm nrog qhov kub qis xws li 0 ° C lossis qis dua 0 ° C, kev txuag hluav taws xob lossis kev sib xyaw yuav tsum tau nqa tawm, thiab cov li qub uas tsis siv yuav tsum tau ntws los ntawm cov dej ntau ntxiv;

③ Lub vuam seam ntawm lub valve lub cev thiab lub kaus mom uas 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;

④ Nws yog txwv tsis pub thawb thiab tso cov khoom hnyav rau ntawm lub valve, thiab nws tsis raug tso cai los tsoo cov hlau thiab cov khoom tsis yog hlau nrog ib txhais tes rauj.Lub installation ntawm qhov loj-inch li qub yuav tsum muaj brackets.

2. Cov pa paug thaum ntim

Cov dej xau ntawm lub valve, feem ntau yog vim li cas thiaj li ntim cov xau.

Yog vim li cas:

① Cov ntim khoom tsis raug xaiv kom raug, nws tsis tiv taus corrosion ntawm nruab nrab, thiab nws tsis tiv taus kev siv lub siab los yog lub tshuab nqus tsev, qhov kub thiab txias ntawm lub valve;

② Cov ntim khoom raug teeb tsa tsis raug, thiab muaj qhov tsis xws luag xws li hloov qhov loj nrog qhov me me, cov ntsia hlau-coiled sib koom ua ke tsis zoo, thiab sab sauv yog nruj thiab qis qis;

③ Lub pob muaj hnub nyoog thiab poob nws elasticity vim nws tau dhau nws lub neej kev pab cuam;

④ Qhov tseeb ntawm lub qia valve tsis siab, thiab muaj qhov tsis xws luag xws li khoov, corrosion thiab hnav;

⑤ Tus naj npawb ntawm lub voj voog ntim tsis txaus, thiab lub caj pas tsis raug nias kom nruj;

⑥ Lub caj pas, bolts, thiab lwm qhov chaw raug puas tsuaj, kom lub caj pas tsis tuaj yeem raug compressed;

⑦ Kev ua haujlwm tsis raug, kev quab yuam ntau dhau, thiab lwm yam.;

⑧ Lub caj pas yog skewed, thiab qhov sib txawv ntawm lub caj pas thiab lub qia yog me me los yog loj dhau, ua rau hnav ntawm qia thiab puas rau cov ntim.

Txoj kev tu:

① Cov khoom thiab hom ntim yuav tsum raug xaiv raws li kev ua haujlwm;

② Cov ntim khoom yuav tsum raug ntsia kom raug raws li cov kev cai cuam tshuam, cov ntim yuav tsum muab tso thiab nias ib qho los ntawm ib qho, thiab qhov sib koom ua ke yuav tsum nyob ntawm 30 ℃ lossis 45 ℃;

③ Cov ntim khoom siv tau ntev dhau lawm, cov laus thiab puas yuav tsum tau hloov raws sijhawm;

④ Lub qia yuav tsum ncaj thiab kho tom qab khoov thiab hnav, thiab cov uas muaj kev puas tsuaj loj yuav tsum tau hloov raws sij hawm;

⑤ Cov ntim khoom yuav tsum tau muab ntsia raws li tus naj npawb ntawm lem, lub caj pas yuav tsum tau nruj symmetrically thiab tusyees, thiab lub tes tsho siab yuav tsum muaj ib tug pre-tightening clearance ntawm ntau tshaj 5 hli;

⑥ Cov qog puas lawm, bolts thiab lwm yam khoom yuav tsum tau kho lossis hloov lub sijhawm;

⑦ Cov txheej txheem kev khiav hauj lwm yuav tsum tau ua raws li, tshwj tsis yog rau qhov cuam tshuam ntawm tes-log, ua haujlwm nrog lub nrawm thiab lub zog ib txwm muaj;

⑧ Lub caj pas bolts yuav tsum tau nruj sib npaug thiab sib npaug.Yog tias qhov sib txawv ntawm lub caj pas thiab lub qia me dhau, qhov sib txawv yuav tsum tau nce ntxiv;yog tias qhov sib txawv ntawm lub caj pas thiab lub qia loj heev, nws yuav tsum tau hloov.

3. Cov dej ntws tawm ntawm qhov sealing nto

Yog vim li cas:

① Lub sealing nto yog tsis sib npaug hauv av thiab tsis tuaj yeem tsim txoj kab nruj;

② Sab saum toj nruab nrab ntawm kev sib txuas ntawm lub valve qia thiab qhov kaw yog raug tshem tawm, tsis raug lossis hnav;

③ Lub valve qia yog khoov los yog sib sau ua ke tsis raug, ua rau qhov kaw yuav tsum tau skewed lossis tawm ntawm kev sib dhos;

④ Qhov zoo ntawm cov khoom siv sealing nto yog xaiv tsis raug lossis lub valve tsis raug xaiv raws li kev ua haujlwm.

Txoj kev tu:

① Raws li kev ua haujlwm, cov khoom siv thiab hom gasket raug xaiv kom raug;

② Kev kho kom zoo, ua haujlwm zoo;

③ Cov bolts yuav tsum tau nruj sib npaug thiab sib npaug.Yog tias tsim nyog, yuav tsum siv lub torque wrench.Lub pre-tightening quab yuam yuav tsum tau raws li qhov yuav tsum tau thiab yuav tsum tsis txhob loj los yog me me.Yuav tsum muaj qee qhov kev sib tw ua ntej ntawm qhov flange thiab cov xov txuas;

④ Lub rooj sib dhos gasket yuav tsum tau ua raws li qhov chaw, thiab lub zog yuav tsum tsis sib xws.Lub gasket tsis pub sib tshooj thiab siv ob lub gaskets;

⑤ Yog tias qhov chaw sib khi zoo li qub yog corroded, puas, thiab kev ua haujlwm tsis zoo, nws yuav tsum tau kho, hauv av, thiab tshuaj xyuas cov xim, kom lub sealing zoo li qub raws li qhov yuav tsum tau ua;

⑥ Ua tib zoo saib xyuas thaum txhim kho lub gasket, lub sealing nto yuav tsum tau ntxuav nrog kerosene, thiab lub gasket yuav tsum tsis txhob poob rau hauv av.

4. Cov dej ntws tawm ntawm qhov sib koom ua ke ntawm lub nplhaib sealing

Yog vim li cas:

① Lub nplhaib sealing tsis dov nruj nreem;

② Lub nplhaib sealing yog welded nrog lub cev, thiab qhov zoo ntawm qhov chaw tsis zoo;

③ Cov xov txuas, ntsia hlau thiab lub nplhaib siab ntawm lub nplhaib sealing yog xoob;

④ Lub nplhaib sealing kev twb kev txuas yog corroded.

Txoj kev tu:

① Cov dej ntws tawm ntawm qhov sib khi thiab qhov chaw dov yuav tsum tau txhaj nrog cov nplaum thiab tom qab ntawd kho los ntawm dov;

② Lub nplhaib sealing yuav tsum tau rov welded raws li qhov tshwj xeeb vuam.Yog hais tias qhov surfacing weld tsis tuaj yeem kho, qhov qub surfacing vuam thiab kev ua haujlwm yuav tsum raug tshem tawm;

③ Tshem tawm cov ntsia hlau thiab nias lub nplhaib, ntxuav, hloov cov khoom puas, zom cov sealing nto ntawm lub foob thiab lub rooj sib txuas, thiab rov ua dua.Rau qhov chaw uas muaj kev puas tsuaj loj heev, nws tuaj yeem kho tau los ntawm kev sib txuas, kev sib txuas thiab lwm txoj hauv kev;

④ Qhov sib txuas ntawm lub nplhaib sib khi yog corroded thiab tuaj yeem kho los ntawm kev sib tsoo, kev sib txuas thiab lwm txoj hauv kev.Yog tias nws tsis tuaj yeem kho tau, lub nplhaib sealing yuav tsum tau hloov.

5. Qhov kaw qhov poob tawm thiab xau

Yog vim li cas:

① Kev ua haujlwm tsis zoo, yog li ntawd qhov kaw qhov kaw tau daig lossis dhau qhov chaw tuag saum toj kawg nkaus, thiab qhov kev sib txuas puas thiab tawg;

② Kev sib txuas ntawm qhov kaw tsis ruaj, thiab nws yog xoob thiab poob;

③ Cov khoom siv ntawm cov khoom sib txuas tsis raug, thiab nws tsis tuaj yeem tiv taus qhov nruab nrab thiab cov khoom siv kho tshuab.

Txoj kev tu:

① Kev ua haujlwm raug, kaw lub valve tsis tuaj yeem siv lub zog ntau dhau, qhib lub valve tsis tuaj yeem tshaj qhov chaw tuag saum toj kawg nkaus, tom qab lub valve qhib tag nrho, lub log yuav tsum thim rov qab me ntsis;

② Kev sib txuas ntawm qhov kaw thiab lub qia valve yuav tsum ruaj khov, thiab yuav tsum muaj lub nraub qaum ntawm txoj hlua txuas;

③ Cov fasteners siv los txuas qhov kaw thiab lub qia valve yuav tsum tiv taus qhov nruab nrab ntawm qhov nruab nrab thiab muaj qee yam khoom siv zog thiab hnav tsis kam.