Resilient npauj npaim li qubyog hom npauj npaim valve feem ntau siv hauv cov kav dej. Lawv siv cov ntaub ntawv elastic xws li roj hmab raws li lub sealing nto, tso siab rau "cov ntaub ntawv resilience" thiab "cov qauv compression" kom ua tiav sealing kev ua tau zoo.
Kab lus no tsis tsuas yog qhia txog cov qauv, siv, thiab cov ntaub ntawv, tab sis kuj txheeb xyuas lawv los ntawm kev paub dav dav mus rau qhov tob tob.
1. Kev nkag siab yooj yim ntawm Resilient Npauj Npaim li qub (Cov lus piav qhia luv luv)
1.1 Cov Qauv Txheej Txheem
Lub cev valve:Feem ntau wafer hom, lug hom, los yog flanged hom.
Valve Disc:Lub voj voog hlau phaj uas compresses lub rooj zaum roj hmab thaum kaw los tsim ib lub foob.
Valve Rooj:Ua los ntawm cov ntaub ntawv elastic xws li NBR / EPDM / PTFE / Rubber Lined, ua haujlwm ua ke nrog lub valve disc.
Lub Valve:Feem ntau siv ib leeg-ncej lossis ob-ncej tsim.
Actuator:Kov, cab iav, hluav taws xob, pneumatic, thiab lwm yam.
1.2 Cov Nta Tseem Ceeb
Sealing qib feem ntau ua tiav xoom xau.
Tus nqi qis thiab ntau yam kev siv.
Feem ntau siv nyob rau hauv qis mus rau nruab nrab siab tshuab xws li dej, cua txias, HVAC, thiab lub teeb tshuaj industries.
2. Kev ntseeg yuam kev txog Resilient Npauj Npaim li qub
2.1 Lub ntsiab ntawm sealing yog roj hmab resilience
Coob leej neeg ntseeg tias: "Resilient seats cia siab rau cov roj hmab resilience rau sealing."
Lub ntsiab tseem ceeb ntawm sealing yog:
Valve lub cev + valve qia nruab nrab nrug + valve disc thickness + valve rooj embedding txoj kev
Ua ke tsim "tswj compression cheeb tsam".
Cias muab:
Cov roj hmab tsis tuaj yeem xoob lossis nruj dhau; nws vam khom rau "sealing compression zone" tswj los ntawm machining precision.
Vim li cas qhov no tseem ceeb?
Tsis txaus compression: Valve leaks thaum kaw.
Compression ntau dhau: Lub zog siab heev, kev laus ua ntej ntawm cov roj hmab.
2.2 Puas yog ib qho kev ua kom zoo dua qub dua qub?
Kev pom zoo: Streamlined valve discs tuaj yeem txo qhov poob siab.
Qhov no muaj tseeb raws li "fluid mechanics" txoj kev xav, tab sis nws tsis muaj feem xyuam rau qhov tseeb daim ntawv thov ntawm Resilient Npauj Npaim Valves.
Yog vim li cas:
Lub hauv paus tseem ceeb ntawm kev poob siab hauv npauj npaim li qub tsis yog cov duab ntawm lub valve disc, tab sis "micro-channel qhov cuam tshuam" tshwm sim los ntawm kev cog lus ntawm lub rooj zaum roj hmab. Lub valve disc yog nyias dhau tuaj yeem ua tsis tau qhov kev sib cuag txaus, uas tuaj yeem ua rau cov kab sib txuas tsis tu ncua thiab xau.
Lub pob valve uas muaj zog tuaj yeem ua rau cov ntsiab lus ntawm kev ntxhov siab ntawm cov roj hmab, txo nws txoj sia.
Yog li ntawd, tus tsim ntawm mos-seated npauj npaim li qub yog qhov tseem ceeb ntawm "kev sib khi kab ruaj ntseg" tshaj streamlining.
2.3 Mos-seated npauj npaim li qub tsuas muaj cov qauv hauv nruab nrab
Nws feem ntau hais hauv online tias eccentric npauj npaim li qub yuav tsum siv cov hlau tawv tawv.
Txawm li cas los xij, kev paub txog engineering hauv ntiaj teb tiag qhia tau tias:
Ob chav eccentricity ho txhim kho lub neej ntawm Resilient Npauj Npaim Valves.
Yog vim li cas:
Ob chav eccentricity: Lub valve disc tsuas yog hu rau cov roj hmab thaum lub sijhawm kawg ntawm 2-3 ° kaw, txo qhov kev sib txhuam.
Tsawg torque, ua rau kev xaiv tus actuator pheej yig dua.
2.4 Lub ntsiab lus tseem ceeb rau lub rooj zaum roj hmab yog "cov ntaub ntawv npe"*
Cov neeg siv feem ntau tsuas yog tsom rau:
EPDM
NBR
Viton (FKM)
Tab sis qhov cuam tshuam tiag tiag rau lub neej yog:
2.4.1 Ntug Hardness:
Piv txwv li, Shore A hardness ntawm EPDM tsis yog ib rooj plaub ntawm "qhov softer qhov zoo dua." Feem ntau, 65-75 yog qhov pom kev sib npaug, ua tiav xoom xaim ntawm qhov tsis tshua muaj siab (PN10-16).
Mos dhau: Tsawg torque tab sis yooj yim torn. Nyob rau hauv high-pressure peaks (> 2 MPa) los yog turbulent ib puag ncig, mos roj hmab yog heev compressed, ua rau extrusion deformation. Tsis tas li ntawd, qhov kub thiab txias (> 80 ° C) ua rau cov roj hmab muag muag ntxiv.
Ib qho nyuaj dhau: Kev sib khi tsis yooj yim, tshwj xeeb tshaj yog nyob rau hauv cov tshuab tsis tshua muaj siab (<1 MPa), qhov twg cov roj hmab tsis tuaj yeem txaus compressed los ua ib qho airtight interface, ua rau micro-tawg.
2.4.2 Vulcanization kub thiab kho lub sij hawm
Vulcanization kub thiab curing lub sij hawm tswj tus ntoo khaub lig-txuas ntawm roj hmab molecular chains, ncaj qha cuam tshuam rau stability ntawm lub network qauv thiab kev ua tau zoo mus ntev. Feem ntau yog 140-160 ° C, 30-60 feeb. Qhov kub thiab txias dhau los ua rau qhov tsis sib xws thiab ua rau kev laus sai. Peb lub tuam txhab feem ntau siv ntau theem vulcanization (pre-kho ntawm 140 ° C, tom qab kho tom qab 150 ° C). 2.4.3 Compression Set
Cov txheej txheem compression yog hais txog qhov kev faib ua feem ntawm kev hloov pauv mus tas li uas cov roj hmab tau dhau los ntawm kev ntxhov siab tas li (feem ntau 25% -50% compression, kuaj ntawm 70 ° C / 22h, ASTM D395) thiab tsis tuaj yeem rov qab zoo. Tus nqi zoo rau compression teeb yog <20%. Tus nqi no yog "lub caj dab" rau lub sij hawm ntev sealing ntawm lub valve; Lub sij hawm ntev kev kub siab ua rau cov khoob khoob khoob, tsim cov ntsiab lus to.
2.4.4 Tensile zog
A. Tensile Strength (feem ntau> 10 MPa, ASTM D412) yog qhov siab tshaj plaws kev ntxhov siab cov roj hmab tuaj yeem tiv taus ua ntej tensile tawg, thiab tseem ceeb heev rau kev hnav tsis kam thiab tsim kua muag ntawm lub rooj zaum valve. Cov roj hmab cov ntsiab lus thiab carbon dub piv txiav txim siab lub zog tensile ntawm lub rooj zaum valve.
Nyob rau hauv npauj npaim li qub, nws tiv thaiv shearing los ntawm lub valve disc ntug thiab cov dej cuam tshuam.
2.4.5 Qhov loj tshaj zais qhov phom sij ntawm npauj npaim li qub yog to.
Nyob rau hauv engineering xwm txheej, to feem ntau tsis yog qhov teeb meem loj tshaj plaws, tab sis yog qhov nce ntawm torque.
Dab tsi tiag tiag ua rau qhov system tsis ua haujlwm yog:
Sudden surge hauv torque → cab iav puas → actuator tripping → valve jamming
Vim li cas lub torque dheev nce?
- Kub-kub expansion ntawm lub rooj zaum valve
- Kev nqus dej thiab nthuav dav ntawm cov roj hmab (tshwj xeeb tshaj yog cov khoom tsis zoo EPDM)
- Permanent deformation ntawm cov roj hmab vim compression ntev
- Kev tsim tsis tsim nyog ntawm qhov sib txawv ntawm lub valve qia thiab valve disc
- Lub rooj zaum valve tsis zoo tawg tom qab hloov
Yog li ntawd, "torque nkhaus" yog qhov taw qhia tseem ceeb heev.
2.4.6 Valve lub cev machining raug tsis yog qhov tseem ceeb.
Ntau tus neeg ntseeg yuam kev tias kev sib khi ntawm cov mos mos npauj npaim li qub feem ntau tso siab rau cov roj hmab, yog li qhov kev ua haujlwm raug ntawm lub cev valve tsis siab.
Qhov no tsis yog lawm.
Qhov tseeb ntawm lub cev valve cuam tshuam rau:
Lub rooj zaum groove qhov tob → sealing compression sib txawv, yooj yim ua rau misalignment thaum qhib thiab kaw.
Tsis txaus chamfering ntawm zawj ntug → khawb thaum lub rooj zaum valve
Kev ua yuam kev nyob rau hauv nruab nrab ntawm qhov kev ncua deb ntawm lub valve disc → thaj chaw ntau dhau kev sib cuag
2.4.7 Cov tub ntxhais ntawm "tag nrho roj hmab / PTFE kab npauj npaim li qub" yog lub valve disc.
Lub hauv paus ntawm cov roj hmab tag nrho lossis PTFE lined qauv tsis yog "muaj thaj chaw loj dua uas zoo li corrosion-resistant," tab sis los thaiv qhov nruab nrab los ntawm kev nkag mus rau micro-channels hauv lub cev valve. Ntau yam teeb meem nrog pheej yig npauj npaim li qub tsis yog vim cov roj hmab tsis zoo, tab sis yog:
Qhov "khib-zoo li qhov sib txawv" ntawm qhov sib txuas ntawm lub rooj zaum valve thiab lub cev tsis raug hais kom raug.
Lub sij hawm ntev dej yaig → microcracks → roj hmab blistering thiab bulging
Cov kauj ruam kawg yog localized tsis ua hauj lwm ntawm lub rooj zaum valve.
3. Vim li cas Resilient Npauj Npaim Valves siv thoob ntiaj teb?
Dhau li tus nqi qis, peb qhov laj thawj tob dua yog:
3.1. Tsis tshua muaj siab kam rau ua
Piv nrog rau cov hlau ntsaws ruaj ruaj, roj hmab foob, vim lawv cov elasticity zoo heev, muaj lub siab ntev rau kev sib txawv ntawm kev sib txawv thiab me ntsis deformations.
Txawm tias cov yeeb nkab prefabrication yuam kev, flange deviations, thiab tsis sib xws bolt kev nyuaj siab yog absorbed los ntawm elasticity ntawm cov roj hmab (ntawm chav kawm, qhov no yog txwv thiab undesirable, thiab yuav ua rau ib co kev puas tsuaj rau lub pipeline thiab valve nyob rau hauv lub sij hawm ntev).
3.2. Qhov zoo tshaj plaws adaptability rau qhov system siab hloov pauv
Roj hmab foob tsis yog "nkim" raws li cov hlau ntsaws ruaj ruaj; lawv cia li them nyiaj rau txoj kab sealing thaum lub sij hawm hloov pauv siab.
3.3. Tus nqi qis tshaj tag nrho lub neej voj voog
Hard-sealed npauj npaim li qub yog ruaj dua, tab sis tus nqi thiab tus nqi actuator yog siab dua.
Hauv kev sib piv, tag nrho cov peev nyiaj thiab kev saib xyuas tus nqi ntawm Resilient Npauj Npaim Valves yog kev lag luam ntau dua.
4. Cov lus xaus
Tus nqi ntawmResilient Npauj Npaim Valvestsis yog "soft sealing" xwb
Mos-sealed npauj npaim li qub tej zaum yuav zoo li yooj yim, tab sis cov khoom lag luam zoo heev tau txais kev txhawb nqa los ntawm engineering-qib cov ntsiab lus nruj, suav nrog:
Precise compression zone tsim
Tswj roj hmab kev ua tau zoo
Geometric sib piv ntawm valve lub cev thiab qia
Valve rooj sib dhos txheej txheem
Kev tswj torque
Kev ntsuas lub neej
Cov no yog cov ntsiab lus tseem ceeb uas txiav txim siab qhov zoo, tsis yog "cov khoom npe" thiab "zoo li qauv".
CEEB TOOM:* DATA hais txog lub vev xaib no:https://zfavalves.com/blog/key-factors-that-determine-the-quality-of-soft-seal-butterfly-valves/
Post lub sij hawm: Dec-09-2025