Raws li cov khoom tseem ceeb hauv lub twj tso kua mis thiab lub valve, cov nyhuv sealing ntawm lub twj tso kua mis thiab lub valve seals ncaj qha cuam tshuam rau kev ua haujlwm tag nrho, kev ua haujlwm ruaj khov, thiab kev nyab xeeb ntawm lub cev. Yog li ntawd, nws yog ib qho tseem ceeb tshwj xeeb uas yuav tsum muaj kev ntsuam xyuas zoo thiab muaj tseeb ntawm cov nyhuv sealing ntawm lub twj tso kua mis thiab lub valve seals. Cov hauv qab no yuav raug piav qhia los ntawm plaub yam: kev ua haujlwm ntawm cov khoom siv, kev ntsuas kev sib khi, kev ntsuas kev ua haujlwm ntev, thiab kev txheeb xyuas cov ntaub ntawv.
Kev ntsuas khoom vaj khoom tsev
Cov khoom siv ntawm lub twj tso kua mis thiab lub valve seals yog lub hauv paus rau kev soj ntsuam lawv cov sealing zoo. Kev xaiv ntawm cov khoom siv yuav tsum yog nyob ntawm cov yam ntxwv xws li qhov chaw ua haujlwm, cov yam ntxwv ntawm qhov nruab nrab, qhov kub thiab qhov siab, thiab lub neej kev pab cuam. Cov khoom siv sib khi muaj xws li roj hmab, polytetrafluoroethylene (PTFE), hlau, thiab lwm yam.
Roj hmab foob
Roj hmab foob tau dav siv hauv cov twj tso kua mis thiab lub tshuab valve vim lawv cov elasticity zoo thiab sealing zog. Thaum ntsuas qhov kev ua tau zoo ntawm cov roj hmab foob, nws yuav tsum tau them sai sai rau lawv cov hardness, tensile lub zog, tsim kua muag lub zog, compression teeb tus nqi, thiab lwm yam ntsuas. Piv txwv li, qee yam ntawm cov roj hmab nitrile (NBR) foob muaj qhov tawv ntawm 70 (Shore A), lub zog tensile ntawm 20MPa, lub zog tsim kua muag ntawm 50N / hli, thiab compression txheej txheem ntawm 10%. Cov ntaub ntawv no qhia tau hais tias lub foob muaj lub zog siab thiab zoo elastic rov qab.
Polytetrafluoroethylene (PTFE) cov ntsaws ruaj ruaj
PTFE cov ntsaws ruaj ruaj tau paub txog lawv cov kev tiv thaiv corrosion zoo heev, kev kub siab ua haujlwm, thiab qis coefficient ntawm kev sib txhuam. Thaum ntsuas PTFE cov ntsaws ruaj ruaj, nws yog ib qho tseem ceeb uas yuav tsum tau xyuam xim rau lawv lub cev lub cev xws li qhov ntom ntom, melting point, thiab thermal conductivity. PTFE muaj qhov ceev ntawm li 2.2 g / cm³ thiab siab melting point ntawm 327 degree, uas tso cai rau nws kom tswj tau zoo sealing zog nyob rau hauv huab ua hauj lwm tej yam kev mob.
Kev ntsuas kev ua haujlwm foob
Kev ntsuas kev ua tau zoo yog ib feem tseem ceeb ntawm kev ntsuas kev sib khi ntawm lub twj tso kua mis thiab lub valve seals. Cov kev sim ntau yam suav nrog kev ntsuas hydrostatic nruj, ntsuas qhov ntsuas qhov nrawm nrawm, ntsuas kev puas tsuaj, thiab kuaj kev laus.
Hydrostatic Tightness Test
Ntawm qhov ntsuas kub thiab siab, lub foob raug kuaj rau hydrostatic nruj. Ua ib qho kev foob ua piv txwv, tus nqi xau tsawg dua {{0}}.01mL/min ntawm qhov siab ntawm 1.0MPa, uas qhia tau zoo heev hydrostatic sealing kev ua tau zoo. Cov txiaj ntsig ntawm qhov kev sim no yog qhov cuam tshuam ncaj qha ntawm cov nyhuv sealing ntawm lub foob nyob rau hauv cov xwm txheej zoo li qub.
Dynamic siab nruj test
Simulate dynamic siab hloov nyob rau hauv lub sij hawm ua hauj lwm txheej txheem ntawm lub twj tso kua mis valve, thiab sim lub dynamic siab nruj ntawm lub foob. Nyob rau hauv dynamic siab ntau ntawm {{0}}.5 ~ 1.5MPa, qhov to ntawm hom foob no tsawg dua 0.05mL/min, qhia tau hais tias nws muaj zoo dynamic siab sealing kev ua tau zoo. Qhov kev sim no yog qhov tseem ceeb heev rau kev ntsuam xyuas cov nyhuv sealing ntawm cov ntsaws ruaj ruaj nyob rau hauv kev ua haujlwm nyuaj.
Abrasion resistance test
Kev ntsuam xyuas kev puas tsuaj yog qhov taw qhia tseem ceeb rau kev ntsuas lub neej kev pabcuam ntawm cov ntsaws ruaj ruaj. Cov ntsaws ruaj ruaj tsis tu ncua kuaj rau hnav los ntawm simulating lub ntiaj teb kev ua haujlwm tiag tiag. Cov txiaj ntsig kev sim qhia tau tias tom qab 1000 teev ntawm kev ua haujlwm tas mus li, qhov hnav ntawm qee hom foob tsuas yog 0.2 hli, uas qhia tau zoo heev hnav. Cov ntaub ntawv no muab kev txhawb zog rau kev kwv yees lub neej kev pabcuam ntawm cov ntsaws ruaj ruaj.
Kev kuaj kev laus
Kev ntsuam xyuas kev laus yog ib qho tseem ceeb ntawm kev ntsuas qhov ruaj khov mus ntev ntawm cov ntsaws ruaj ruaj. Ntawm qhov ntsuas kub thiab siab, cov ntsaws ruaj ruaj tau raug kuaj xyuas kev laus tas mus li. Siv qee hom foob ua piv txwv, tom qab 1000 teev ntawm kev laus tas li ntawm qhov kub ntawm 100 degree, nws qhov kev ua tau zoo yuav raug txo kom tsis pub ntau tshaj 10%, uas qhia txog kev tiv thaiv kev laus zoo. Qhov kev sim no txheeb xyuas qhov ruaj khov thiab kev ntseeg siab ntawm lub foob nyob rau lub sijhawm ntev ntawm kev siv.
Kev ntsuam xyuas Durability
Kev ntsuas kev ua haujlwm ntev yog qhov tseem ceeb ntawm kev ntsuas kev ua haujlwm ntev ntawm lub twj tso kua mis thiab lub valve seals. Cov ntsaws ruaj ruaj tau sim ua haujlwm ntev los ntawm simulating lub ntiaj teb kev ua haujlwm tiag tiag los ntsuas seb lawv qhov kev ua tau zoo hloov pauv li cas ntawm lawv lub neej kev pabcuam.
Case 1:Kev hloov pauv ntawm lub twj tso kua mis thiab lub valve hauv cov tshuaj cog
Nyob rau hauv lub renovation project ntawm lub twj tso kua mis thiab valve system ntawm ib tug tshuaj cog, ib tug tshiab hom ntawm mechanical foob rau ib tug acid-resistant twj tso kua mis tau saws. Kuaj rau kev soj ntsuam durability, cov ntsaws ruaj ruaj pom zoo heev corrosion kuj thiab durability nyob rau hauv acidic media. Hauv kev siv tswv yim, qhov tsis ua haujlwm ntawm lub twj tso kua mis thiab lub valve yog qhov txo qis thiab kev ua haujlwm tau zoo dua qub. Cov ntaub ntawv kawm no qhia tau hais tias qhov tseem ceeb ntawm kev ntsuas kev ua haujlwm ntev hauv lub twj tso kua mis thiab valve seal xaiv thiab daim ntawv thov.
Cov ntsiab lus
Raws li qhov tshwm sim, qhov kev ntsuam xyuas ntawm cov nyhuv sealing ntawm lub twj tso kua mis thiab lub valve seals yog ib txoj haujlwm nyuaj thiab ua haujlwm. Los ntawm kev txiav txim siab zoo ntawm kev ntsuas kev ua haujlwm ntawm cov khoom siv, kev ntsuas kev sib khi, kev ntsuas kev ua haujlwm ntev, thiab kev txheeb xyuas cov ntaub ntawv, cov nyhuv sealing thiab kev ua haujlwm ntawm lub twj tso kua mis thiab lub valve seals tuaj yeem ntsuas tau thiab raug ntsuas. Cov txheej txheem no yog qhov tseem ceeb heev los xyuas kom meej tias kev ua haujlwm ruaj khov thiab kev nyab xeeb ntawm lub twj tso kua mis thiab lub valve.
