Raws li cov khoom sib xyaw ua kua dej, trunnion pob li qub yog siv dav hauv roj av, kev lag luam tshuaj thiab kev lag luam hluav taws xob. Lawv cov kev ua tau zoo cuam tshuam rau kev nyab xeeb thiab kev lag luam ua tau zoo. Txi lossis malfunctions tuaj yeem ua rau cov kua khib nyiab, ib puag ncig cov pa phem thiab txawm muaj kev nyab xeeb. Yog li ntawd, nws yog tus yuam sij kom ntseeg tau cov haujlwm ruaj khov ntawm trunnion pob nyob rau lub sijhawm thiab ua kev ntsuas kev kho kom raug. Daim ntawv no yuav tshuaj xyuas cov teeb meem no los ntawm peb yam ntawm lub xeev kev ua haujlwm, cov tsos zoo thiab kev sib khi ua haujlwm, thiab txoj kev ntsuas kab ke rau cov kws ua haujlwm.
Cov paib thiab txawv txav thaum ua haujlwm ntawm Trunnion Pob Valve Kev Ua Haujlwm
Cov cim ntawm kev ua haujlwm ib txwm muaj.
1.Opening thiab kaw qhov muag: qhib thiab kaw txheej txheem yuav tsum yog tus, tsis kam ua tsis zoo, tsis muaj lub siab tawv. Piv txwv li, thaum ua haujlwm manually, lub valve qia yuav tsum tig mus txuas ntxiv thiab tawm tsam yuav tsum tsis txhob hloov dheev.
2. Ncov cua kom zoo li qub yuav tsum tau qhib txhua yam thiab kaw hauv qab cov lus qhia lossis kev ua haujlwm ua haujlwm, thiab teb lub sijhawm yuav tsum ua raws li kev tsim nyog. Piv txwv li, tus neeg ua yeeb yam pneumatic yuav tsum raug tua nyob rau hauv 0.5 vib nas this.
3. Lub chaw ruaj khov: lub valve yuav tsis tshwm vib tsuage thaum qhib thiab kaw txheej txheem, ua haujlwm du. Piv txwv li, thaum lub tshuab hluav taws xob hydraulic tau qhib, lub siab ntsuas kev nyeem ntawv yuav tsum tau ceev faj yam tsis muaj kev hloov pauv.
(II) tej txuj ci thiab ua tau rau ua rau kev ua haujlwm tsis zoo
Stuck / daig:
- Qhov tshwm sim: Kev kov hnyav, txawv txawv tsis kam, lossis tsis tau qhib siab lossis kaw.
- Vim li cas: Cov khib nyiab sab hauv (piv txwv li solder slag, xeb dealmation, thaiv vim yog actuator tsis ua hauj lwm (piv txwv, lub tog raj kheej so).
Qhib / kaw tsis ua tiav:
- Qhov tshwm sim: tsis tuaj yeem qhib lossis qeeb kom txog thaum yuav tsum tau nce siab.
- Vim li cas: Tsis Muaj Peev Xwm Txheej Txheem (piv txwv li lub caij nplooj ntoo hlav tsis raug (txo qhov kev sib cav sib ceg (piv txwv li, lub rooj zaum valve (piv txwv li pob nplaum).
Jitter Jitter Kev Ua Haujlwm / Kev co:
- Qhov tshwm sim: Li qub thaws lossis co thaum qhib thiab kaw.
- Vim li cas: Lub caij nplooj ntoos hlav tsis tsim nyog txhav txhav (piv txwv li kev hloov kho lub nplhaib sib xws
Txawv txawv:
- Qhov tshwm sim: cov teeb hluav taws xob tau nce ntxiv tom qab tso tawm.
- Vim li cas: tsis tsim nyog lub valve hloov chaw (yog tias dhau me me), valve kav nruab nrab offfline offset (tshwm sim hauv kev tsis ncaj ncees (elasticity tsis ua haujlwm).
Txiav txim siab qhov ua haujlwm ntawm lub pob cylindrical valve raws li kev pom thiab suab
(I) tsos
Lub cev thiab cov khoom sib xyaw: kos lub cev, lub pob zeb, qia thiab lwm yam rau pom cov kab nrib pleb, pinholes thiab deformation. Piv txwv li, pov tseg steel lub cev yuav tsum yog pub dawb los ntawm kev sib nraus tsis xws luag thiab vuam yuav tsum muaj kev ywj pheej los ntawm cov kab nrib pleb.
Kev Corrosion thiab Apladive: Saib rau pom corrosion, txheej poob, thiab kho hniav, grooved, thiab kos npog. Piv txwv li, stainless hlau lub cev yuav tsum tsis muaj kev pom nyob hauv chloride ion ib puag ncig.
Kev sib txuas: Tshawb xyuas cov Flange, qia thiab ntim lub thawv kev sib txuas rau cov cim ntawm kev tawm dag zog thiab xoob fasteners. Piv txwv li, cov ntsia liaj qhov rooj yuav tsum ua raws li cov qauv tsim qauv yuav tsum tau (piv txwv li M20 Bolt Torque 200-250 Oxen Meters).
Cov khoom tiv thaiv tseem ceeb: ua kom paub tseeb lub qia valve tsis khoov, kev sib txuas nrog lub ntsej muag kheej, thiab cov npog npog yog muab khi. Piv txwv li, lub kav yuav tsum tau tawm tsawg dua lossis sib npaug rau 0.1 mm / m.
(II) Suab
Cov yam ntxwv zoo suab nrov: tsis muaj suab nrov ntxiv thaum qhib thiab kaw, tsuas yog lub suab nrov ntawm nruab nrab ntws. Piv txwv li, dej ntws los ntawm ib lub valve yuav tsim AA txuas ntxiv "gurgling" suab.
Suab nrov thiab cov teeb meem sib xws:
- Knock suab nrov: Qhov no tuaj yeem yog vim muaj valve tub sab poob tawm, nyuaj hais tawm ua daig sab hauv, lossis cov khoom siv xoob. Piv txwv li, thaum lub pob hits ntawm lub rooj zaum, lub rooj zaum valve yuav yog "nyem" lub suab. "
- Kev ua kom muaj suab nrov: Qhov no yuav yog vim kev laus thiab tawv tawv ntawm lub foob, ua rau muaj kev sib txhuam zuj zus ntawm lub pob thiab lub rooj valve. PTFE foob, piv txwv li, tsim "suab" thaum lawv muaj hnub nyoog.
- Tsis muaj qhov sib thooj: Qhov no tuaj yeem yog vim kev txhawb nqa cov yeeb nkab tsis zoo lossis kev teeb tsa tsis raug ntawm sab hauv valve. Yog tias cov yeeb nkab tsis muaj kev nyab xeeb, piv txwv li, muaj ib tug resonant "buzz" li lub valve qhib thiab kaw.
Kev ntsuas kev ntsuas rau txoj kev rau kev sib khi ua tau zoo ntawm axial pob li qub (Core txhais tau tias kev lees paub ua haujlwm)
Yuav tsum muaj cov kev xav tau rau kev soj ntsuam kev ua tau zoo.
Cov Txheej Txheem Kuaj Xyuas: Ua raws li API 6d (roj thiab nkev roj pipeline li qub), GAS / TRICSALVE TESTION TEST), ISO 5208 (valve kev sim).
Kev xaiv ntawm kev xeem xov xwm: Media xws li tsis muaj dej huv (rau tsis {{Corrosive media) lossis cov xov xwm tawg (rau cov khoom siv hluav taws xob (rau cov ntaub ntawv tawg
Npaj cov khoom siv sim: Kev ntsuas lub siab thiab cov khoom siv npuas dej (xws li 0.5 chav kawm raug. Xyuas kom muaj calibration ntawm cov khoom siv.
Ib puag ncig thiab cov cai coj mus kuaj: kuaj ntawm chav tsev kub 10℃rau 35℃nrog cov av noo tsawg dua los yog sib npaug ntawm 85%. Cov li qub yuav tsum tau kaw tag, khaws kom huv thiab dawb ntawm kev swb.
(II) Cov Tub Ntxhais Tub Ntxhais Kuaj Cov Haujlwm thiab Cov Txheej Txheem
Sab hauv daim ntawv xeem (ntawm kheej kheej thiab rooj zaum):
- (b) Kev Ntsuas Kev Tsim Nyuaj Siab: Txhaj Tso Tawm Cua / Nitrogen / Dej 0.2-0.6 MPa, tswj cov npuas (hauv nruab nrab).
- Kev siab siab sealing kuaj: txhaj cov xov xwm ntawm 1.1 npaug ntawm cov tsim kev tsim siab, siab khaws cia 15-60 vib nas this (kho kom raug rau kev paub meej). Cov dej xau yuav tsum tau ua raws li cov txheej txheem (piv txwv li cov li qub DN tsawg dua lossis sib npaug nrog 50 hli, tsawg dua lossis sib npaug nrog 0.15 ml / min).
Kev ntsuas sab nraud sab nraud (STEM thiab Flange kev sib txuas):
- Qaum Foob: txhaj cov xov xwm ntawm 1.1 zaug cov qauv tsim, rov ua dua tshiab qia 3-5 zaug, tom qab ntawd tswj lub siab thiab saib kev lim dej.
- Flange Foob: Siv xab npum ua daws rau cov chaw sib txuas, thov nias siab, thiab saib seb puas muaj npuas lossis kev xau.
Cov xwm txheej tshwj xeeb tshwj xeeb xeem:
- Kev ntsuas kub kub simulation: kev sib txuas ntawm 750℃lossis siab dua rau 30 feeb, txias rau cov kev xav tau qis dua.
- Kev ntsuas kub tsawg tshaj plaws: ntawm qhov qis qis tshaj plaws tsim los tswj tau 2-4 teev, xyuas kom meej tias lub foob tsis muaj kev txhaum, kev qhib ib txwm muaj thiab kaw.
(III) Kev Ntsuas thiab Kev Ua Haujlwm Ntawm Cov Ntsiab Lus
Cov qauv tsim nyog: Siab poob qis dua lossis sib npaug tsawg dua lossis sib npaug rau 1% thaum lub sijhawm rwb thaiv tsev, xau tau raws li cov txheej txheem muaj txiaj ntsig.
Qhov txhaum ua: Tshem tawm thiab tshawb xyuas cov kev puas tsuaj, ntim cov teeb meem lossis cov teeb meem sib dhos. Kev kho thiab rov ua haujlwm (txwv rau ob). Yog hais tias tus neeg txhaum kev, hloov lub valve.
