Koj Yuav Tsum Xaiv Cov Khoom Siv Twj Tso Kua Mis Qib Khoom Noj Twg?

Kev Taw Qhia

Kev xaiv cov khoom siv foob rau lub twj tso kua mis qib zaub mov cuam tshuam ntau dua li kev tiv thaiv kev xau. Cov khoom siv elastomer lossis lub ntsej muag zoo yuav tsum tiv taus cov tshuaj ntxuav, kev hloov pauv kub, cov tshuaj lom neeg ntawm cov khoom, thiab cov kev cai tsim qauv huv si yam tsis muaj cov khoom me me poob, o, lossis tsim cov chaw uas cov kab mob tuaj yeem loj hlob. Kev sib phim tsis zoo tuaj yeem ua rau lub neej ua haujlwm luv dua, ua rau lub sijhawm tsis ua haujlwm ntev dua, thiab ua rau muaj kev pheej hmoo ntawm kev ua qias tuaj uas kim heev rau kev kuaj pom thiab kho. Tsab xov xwm no piav qhia txog cov khoom siv tseem ceeb los sib piv, cov xwm txheej ua haujlwm uas tsav kev xaiv, thiab kev pauv pauv ntawm cov kev xaiv feem ntau kom koj tuaj yeem xaiv lub foob twj tso kua mis qib zaub mov uas txhawb nqa kev ua haujlwm zoo thiab kev ua raws li txoj cai.

Vim Li Cas Cov Khoom Siv Twj Tso Kua Mis Khoom Noj Khoom Haus Xaiv Tau Tseem Ceeb

Hauv cov txheej txheem ntxuav dej huv,cov khoom siv kho tshuabthiab cov gaskets static hauv lub twj tso kua mis sawv cev rau ib feem me me ntawm cov nqi khoom siv pib. Txawm li cas los xij, cov khoom no yog lub luag haujlwm tsis sib xws rau kev cuam tshuam cov txheej txheem, suav nrog feem ntau ntawm cov twj tso kua mis tsis ua haujlwm thiab lub sijhawm txij nkawm tsis tau npaj tseg. Xaiv qhov yogcov khoom siv foob twj tso kua mis qib zaub movyog qhov kev txiav txim siab tseem ceeb hauv kev tsim kho uas cuam tshuam ncaj qha rau kev ua haujlwm zoo, kev ua raws li txoj cai, thiab kev tiv thaiv hom lag luam.

Tsis zoo li cov kev siv hauv kev lag luam uas qhov xau ntawm lub foob feem ntau ua rau muaj kev phom sij rau ib puag ncig lossis kev siv tshuab, cov kev siv hauv kev huv muaj kev pheej hmoo ntawm kev ua qias tuaj ntawm cov kab mob. Lub foob uas puas tsuaj hauv ib puag ncig ua zaub mov tsis yog tsuas yog poob cov khoom xwb; nws tsim ib qho chaw nkaum me me rau cov kab mob, ua rau muaj kev phom sij rau tag nrho cov pawg tsim khoom thiab ua rau muaj kev pheej hmoo loj heev rau cov neeg siv khoom noj khoom haus.

Kev ua qias tuaj thiab kev pheej hmoo ntawm kev nyab xeeb ntawm cov khoom

Lub luag haujlwm tseem ceeb ntawm txhua lub twj tso kua mis qib zaub mov yog kom tswj tau qhov thaiv hermetic ntawm cov txheej txheem xov xwm thiab qhov chaw sab nraud, thaum tseem tiv thaiv cov kab nrib pleb sab hauv uas cov khoom tuaj yeem nres. Qhov tsis zoo ntawm qhov chaw me me, kev puas tsuaj ntawm elastomer, lossis kev tsis sib haum xeeb ntawm cov tshuaj tuaj yeem ua rau cov khoom poob, ua rau cov khoom txawv teb chaws nkag mus rau hauv cov zaub mov.

Tsis tas li ntawd xwb, cov elastomers uas lwj tag yuav tsim tau cov kab me me uas nyob hauv cov biofilms. Rau kev ua raws li kev huv, cov chaw ntub dej, suav nrog cov ntsej muag foob thiab elastomers, feem ntau xav tau qhov roughness ntawm qhov chaw tsis pub tshaj 0.8 µm Ra (32 µin). Thaum cov khoom foob tsis raug teev tseg thiab lwj tag, nws qhov roughness ntawm qhov chaw nce ntxiv ntau heev, ua rau cov kab mob xws li Listeria lossis Salmonella nyob hauv cov chaw uas cov txheej txheem ntxuav tsis tuaj yeem ncav cuag. Cov khoom lag luam rov qab hu thiab cov kev nplua rau kev cai lij choj ntau dua li tus nqi pib ntawm kev teev cov khoom foob zoo.

Cov xwm txheej ua haujlwm uas ua rau lub foob tsis ua haujlwm

Lub sijhawm ntev ntawm lub foob yog txiav txim siab los ntawm kev ntxhov siab ntawm cov khoom siv thiab cov cua sov ntawm qhov chaw ua haujlwm tshwj xeeb. Cov neeg ua rau tsis ua haujlwm sai sai suav nrog kev khiav qhuav, cavitation, thermal shock, thiab kev hnav abrasive. Cov twj centrifugal thiab cov twj tso kua mis positive displacement feem ntau ntsib cov xwm txheej khiav qhuav ib ntus thaum lub sijhawm pib lossis cov theem nchuav lub tank.

Kev siv lub tshuab foob kom qhuav tuaj yeem ua rau qhov kub ntawm lub ntsej muag foob nce siab tshaj 150°C (300°F) hauv 60 vib nas this. Qhov kev kub ceev no ua rau cov elastomers txheem tawg thiab tawg ntawm cov ntsej muag tawv xws li alumina ceramic lossis silicon carbide. Tsis tas li ntawd, kev siv cov khoom siv uas muaj viscous heev lossis cov kua uas muaj cov khoom me me (xws li cov txiv hmab txiv ntoo slurries lossis cov suab thaj crystalized) ua rau muaj kev sib txhuam hnyav, xav tau cov ntaub ntawv tawv uas tuaj yeem tiv taus kev sib txhuam tas mus li yam tsis poob lawv qhov tiaj tiaj.

Cov Khoom Siv thiab Cov Kev Xaiv rau Cov Khoom Noj Khoom Haus Twj Tso Kua Mis

Cov foob ntawm lub twj tso kua mis siv cov elastomers uas yoog tau rau kev sib khi zoo li qub (xws li O-rings, bellows, thiab gaskets) thiab cov khoom siv khov kho rau cov ntsej muag foob dynamic. Qhov kev teeb tsa zoo tshaj plaws yog nyob ntawm kev sib npaug ntawm cov khoom siv kho tshuab, kev txwv thermal, thiab kev tiv thaiv tshuaj lom neeg ntawm cov ntaub ntawv no nrog rau cov txheej txheem xav tau.

Cov elastomers feem ntau: EPDM, FKM, thiab NBR

Cov elastomers muab qhov yooj ywm tsim nyog los tswj lub foob nyob rau hauv ntau yam kev nyuaj siab thiab kub. Ethylene Propylene Diene Monomer (EPDM) yog cov elastomer siv dav tshaj plaws hauv kev lag luam khoom noj khoom haus vim nws tiv taus dej kub thiab pa dej, tswj hwm qhov kub tas mus li txog li 150 ° C (302 ° F). Txawm li cas los xij, EPDM yooj yim puas tsuaj thaum raug rau cov rog tsiaj, roj zaub, thiab cov roj ua los ntawm roj av, ua rau nws tsis haum rau kev ua cov mis nyuj lossis cov roj noj.

Cov roj hmab fluorocarbon (FKM), feem ntau paub los ntawm cov npe lag luam zoo li Viton, muaj kev tiv taus zoo rau cov rog, roj, thiab ntau yam tshuaj lom neeg, ua haujlwm tau zoo txog li 200 ° C (392 ° F). Nws qhov kev txwv tseem ceeb yog qhov tsis muaj zog rau kev raug tshuaj ntxuav alkaline kub thiab cov pa ntshiab ntev. Nitrile Butadiene Roj Hmab (NBR), lossis Buna-N, ua haujlwm ua lwm txoj hauv kev pheej yig rau cov roj thiab cov roj siv tab sis raug txwv los ntawm qhov kub ua haujlwm qis dua ntawm kwv yees li 100 ° C (212 ° F), txwv nws siv hauv cov txheej txheem sterilization kub siab.

Cov ntaub ntawv tawv: PTFE, UHMW-PE, carbon, silicon carbide, thiab stainless hlau

Cov ntsej muag dynamic mechanical sealxav tau cov ntaub ntawv tsim los rau qhov tiaj tiaj heev, tawv, thiab tsawg kawg nkaus kev sib txhuam. Polytetrafluoroethylene (PTFE) thiab Ultra-High-Molecular-Weigh Polyethylene (UHMW-PE) muaj kev sib xyaw ua ke zoo heev thiab kev sib txhuam tsawg, tab sis lawv tsis muaj kev ruaj khov ntawm cov qauv uas xav tau rau kev siv siab lossis kev sib txhuam ntau.

Rau cov foob pob uas nyuaj rau kev sib hloov, Carbon Graphite, Silicon Carbide (SiC), thiab Tungsten Carbide (TC) yog cov qauv kev lag luam. Carbon graphite muab cov khoom siv zoo heev rau nws tus kheej, ua rau nws zam txim rau lub sijhawm luv luv qhuav, txawm hais tias nws yooj yim rau cov khoom siv abrasive. Silicon Carbide yog qhov nyuaj heev thiab tiv taus kev sib txhuam thiab kev tawm tsam tshuaj lom neeg, tab sis nws qhov xwm txheej brittle ua rau nws yooj yim rau kev siv tshuab thiab thermal shock. Stainless hlau (feem ntau 316L) feem ntau siv rau cov khoom sib hloov thiab cov tsev vim nws lub zog ruaj khov, txawm hais tias nws tsis tshua siv ua lub ntsej muag foob tseem ceeb tiv thaiv lwm yam hlau vim muaj kev pheej hmoo ntawm galling.

Yuav Ua Li Cas Piv Cov Khoom Siv Twj Tso Kua Mis Qib Khoom Noj

Kev xaiv cov khoom siv kom raug yuav tsum tau muaj kev soj ntsuam tag nrho ntawm ob qho tib si lub cev thiab tshuaj lom neeg ntawm lub twj tso kua mis thiab cov kev cai nruj heev uas tswj cov khoom siv sib cuag nrog zaub mov. Cov khoom siv uas ua haujlwm zoo tshaj plaws los ntawm qhov pom ntawm lub tshuab tseem yuav raug tshem tawm yog tias nws tsis muaj daim ntawv pov thawj tsim nyog los xyuas kom meej tias cov neeg siv khoom muaj kev nyab xeeb.

Cov qauv tseem ceeb rau kev xaiv cov khoom siv

Cov qauv tseem ceeb rau kev xaiv cov khoom siv foob yog nyob ntawm kev sib raug zoo ntawm cov tshuaj lom neeg, kev ruaj khov ntawm thermal, thiab kev ua haujlwm ntev. Cov kws ua haujlwm yuav tsum soj ntsuam tag nrho cov khoom siv uas foob yuav ntsib, uas tsis yog tsuas yog cov khoom noj khoom haus tseem ceeb xwb tab sis kuj tseem muaj cov tshuaj lom neeg siv thaum lub sijhawm ntxuav. Cov ntsej muag foob thiab cov elastomers yuav tsum tiv taus cov tshuaj alkaline Clean-in-Place (CIP) nrog cov pH ntau ntawm 11 txog 13, nrog rau cov tshuaj acidic neutralizers, yam tsis muaj kev puas tsuaj ntawm cov tshuaj lom neeg lossis volumetric o.

Kev txwv ntawm qhov siab thiab qhov ceev (PV) yog lwm yam tseem ceeb ntawm kev siv tshuab. Tus nqi PV sawv cev rau kev sib raug zoo ntawm qhov siab uas ua rau ntawm lub ntsej muag foob thiab qhov ceev ntawm qhov tiglub twj tso kua misTshaj qhov txwv PV ntawm cov khoom siv sib xyaw ua ke (piv txwv li, Carbon vs. Stainless Steel) ua rau muaj cua sov ntau dhau, ua rau cov kua dej ntawm cov ntsej muag foob ua pa sai sai thiab ua rau puas tsuaj loj heev.

Cov qauv tseem ceeb: FDA, EC 1935/2004, USP Class VI, thiab 3-A

Kev ua raws li txoj cai lij choj tsis tuaj yeem sib tham tau hauv cov ntawv thov zaub mov thiab dej haus. Hauv Tebchaws Meskas, FDA hais txog kev nyab xeeb ntawm cov khoom siv los ntawm Txoj Cai ntawm Tsoom Fwv Teb Chaws. Tshwj xeeb, FDA CFR 21.177.2600 hais kom cov kev txwv ntawm kev rho tawm rau cov khoom siv roj hmab uas siv rau kev siv ntau zaus hauv kev sib cuag nrog cov khoom noj hauv dej yuav tsum tsis pub tshaj 20 milligrams ib square inch thaum 7 teev thawj zaug ntawm kev rho tawm. Cov khoom siv yuav tsum tau tsim los ntawm kev siv cov khoom xyaw uas tau pom zoo xwb kom tiv thaiv kev tawm tshuaj lom.

Hauv Tebchaws Europe, EC 1935/2004 tsim cov kev cai dav dav rau cov khoom siv sib cuag zaub mov, hais txog kev taug qab nruj thoob plaws hauv cov saw hlau xa khoom. Rau cov ntawv thov rhiab heev, xws li biopharmaceuticals lossis cov khoom noj khoom haus tshwj xeeb, daim ntawv pov thawj USP Class VI feem ntau xav tau, uas cuam tshuam nrog kev kuaj mob hauv lub cev. Tsis tas li ntawd, 3-A Cov Qauv Huv Huv (paub dav thoob ntiaj teb) tsis yog hais txog cov khoom siv sib xyaw xwb, tab sis kuj tsim qauv huv ntawm lub foob, kom ntseeg tau tias nws tsis muaj ceg tuag thiab tuaj yeem ntxuav tau zoo hauv qhov chaw.

Cov Txheej Txheem thiab Kev Txij Nkawm Cuam Tshuam Li Cas Rau Kev Xaiv Khoom Siv

Lub neej ua haujlwm ntawm lub twj tso kua mis qib zaub mov tsis tshua muaj feem cuam tshuam los ntawm kev twj cov khoom noj khoom haus tas li. Hloov chaw, qhov kev ntxhov siab hnyav tshaj plaws tshwm sim thaum lub sijhawm hloov pauv, tshwj xeeb tshaj yog thaum lub sijhawm ntxuav thiab tua kab mob raws li cov kev cai ntawm kev nyab xeeb zaub mov.

Sib phim cov ntaub ntawv rau qhov kub thiab txias, xov xwm, thiab kev ntxuav

Kev ntxuav hauv qhov chaw (CIP) thiab kev ntxuav hauv qhov chaw (SIP) ua rau muaj kev kub ntxhov thiab cov tshuaj lom neeg muaj zog rau hauv lub twj tso kua mis. Lub voj voog SIP feem ntau ua rau cov ntsaws ruaj ruaj sab hauv raug cov pa roj saturated ntawm 121 ° C (250 ° F) rau 30 txog 45 feeb. Qhov no xav tau cov elastomers uas muaj kev ruaj khov thermal zoo heev thiab cov txheej txheem compression qis; txwv tsis pub, cov O-rings yuav tiaj tus mus tas li, poob lawv lub zog sib khi radial thaum lub twj tso kua mis txias.

Ntxiv mus, cov xov xwm nws tus kheej qhia txog kev sib txuas ntawm cov ntsej muag foob tshuab. Cov xov xwm uas nplaum heev lossis nplaum, xws li cov kua txiv hmab hnyav lossis cov chocolates kua, tuaj yeem ua rau cov ntsej muag foob lo rau ib leeg thaum lub twj tso kua mis tsis ua haujlwm. Thaum pib, lub zog tawg tuaj yeem rhuav cov ntsej muag carbon tawg. Hauv cov xwm txheej no, kev sib xyaw ua ke ntawm lub ntsej muag tawv-rau-tawv, xws li Silicon Carbide piv rau Silicon Carbide (SiC / SiC), feem ntau tau teev tseg kom tiv taus lub zog siab thiab qhov xwm txheej abrasive ntawm cov xov xwm.

Kev sib npaug ntawm lub neej ntawm lub foob, kev ntxuav tau, thiab tus nqi

Cov thawj coj ntawm qhov chaw yuav tsum sib npaug tus nqi yuav khoom ua ntej ntawm cov khoom siv foob zoo tshaj plaws piv rau tag nrho tus nqi ntawm kev muaj, uas suav nrog kev ua haujlwm txij nkawm, cov khoom hloov pauv, thiab lub sijhawm tsim khoom poob. Txawm hais tias cov ntaub ntawv txheem yuav txaus rau cov ntawv thov uas tsis muaj zog, cov chaw ua haujlwm tas mus li xav tau cov kev daws teeb meem zoo los txuas ntxiv Lub Sijhawm Nruab Nrab Ntawm Kev Ua Tsis Tau Zoo (MTBF).

Los ntawm kev sib phim cov khoom siv rau ob qho tib si cov khoom thiab lub voj voog ntxuav, cov nroj tsuag tuaj yeem ua kom huv si yam tsis muaj kev cuam tshuam lub neej ntawm lub foob. Kev hloov kho mus rau cov khoom siv tawv dua lossis cov elastomer uas tsis muaj tshuaj lom neeg ntau dua feem ntau ua rau muaj txiaj ntsig sai los ntawm kev tshem tawm ib qho kev kho tsis tau npaj tseg hauv ib xyoos.

Yuav Xaiv Thiab Txheeb Xyuas Cov Khoom Siv Seal Zoo Li Cas

Kev ua kom tiav cov lus qhia txog cov khoom siv foob tsuas yog ib feem ntawm qhov kev sib tw engineering xwb. Kev nrhiav cov ntaub ntawv tseeb, ua raws li txoj cai thiab kev lees paub lawv qhov kev teeb tsa yog cov kauj ruam tseem ceeb kom ntseeg tau tias cov txheej txheem ua tiav thiab npaj txhij rau kev kuaj xyuas.

Thaum cov khoom siv zoo tshaj plaws raug lees paub

Txawm hais tias EPDM thiab tus qauv FKM npog feem ntau ntawm cov kev xav tau ua zaub mov, qee qhov kev siv hnyav ua pov thawj rau kev nqis peev hauv cov khoom siv zoo xws li Perfluoroelastomers (FFKM). FFKM O-rings tuaj yeem raug nqi ntau dua 10 txog 20 npaug ntawm lawv cov qauv EPDM sib npaug, sawv cev rau tus nqi tseem ceeb. Txawm li cas los xij, lawv tau tsim los tiv taus qhov kub txog li 327 ° C (620 ° F) thiab muab kev sib raug zoo tshuaj lom neeg thoob ntiaj teb.

Hauv cov kab ua haujlwm tas mus li uas lub sijhawm tsis tau npaj tseg tuaj yeem raug nqi ntau dua $ 10,000 ib teev hauv kev poob cov khoom thiab cov khoom pov tseg, tus nqi pib siab ntawm FFKM lossis cov ntsej muag tshwj xeeb uas muaj pob zeb diamond-coated Silicon Carbide yog qhov tsim nyog. Cov ntaub ntawv zoo no feem ntau yog siv rau hauv kev ua kom sov siab, cov kab ntim khoom aseptic nruj, lossis cov txheej txheem siv cov tshuaj tua kab mob peracetic acid uas muaj zog heev uas ua rau cov elastomers me dua puas tsuaj sai.

Kev yuav khoom thiab kev kuaj xyuas ua ntej kev teeb tsa

Cov khoom siv rau cov khoom siv huv huv muaj kev hloov pauv khoom siv thiab cov khoom cuav. Ua ntej kev teeb tsa,cov pab pawg saib xyuas thiab kev ruaj ntseg zooyuav tsum ua cov kev kuaj xyuas kev lees paub zoo. Qhov no pib nrog kev thov Daim Ntawv Pov Thawj Ua Raws Cai (CoC) thiab cov ntawv qhia txog kev sim khoom siv los ntawm tus neeg muag khoom, lees paub tias cov pawg tshwj xeeb ntawm elastomers lossis lub ntsej muag foob ua tau raws li FDA, 3-A, lossis EC 1935/2004 cov qauv.

Cov txheej txheem pov thawj yuav tsum tau cov chaw khaws cov ntawv pov thawj no tsawg kawg yog 3 txog 5 xyoos, nyob ntawm seb cov lus txib kev nyab xeeb zaub mov hauv cheeb tsam, kom ntseeg tau tias muaj kev taug qab tag nrho thaum muaj kev tshuaj xyuas lossis rov qab hu cov khoom. Tsis tas li ntawd, kev txheeb xyuas lub cev thaum tau txais - xws li kev sim durometer (hardness) ntawm elastomers thiab kev tshuaj xyuas pom ntawm lub ntsej muag foob hauv qab lub teeb monochromatic - ua kom ntseeg tau tias cov khoom tsis tau raug cuam tshuam thaum lub sijhawm tsim khoom lossis kev thauj mus los. Kev lees paub zoo lav tias cov npoo kev nyab xeeb ntawm cov twj tso kua mis zaub mov tau ua tiav tag nrho hauv qhov chaw tsim khoom.

Cov Ntsiab Lus Tseem Ceeb

• Cov lus xaus tseem ceeb tshaj plaws thiab cov laj thawj rau cov twj tso kua mis qib zaub mov
• Cov lus qhia tshwj xeeb, kev ua raws li txoj cai, thiab kev kuaj xyuas kev pheej hmoo uas tsim nyog lees paub ua ntej koj cog lus
• Cov kauj ruam tom ntej thiab cov lus ceeb toom uas cov nyeem ntawv tuaj yeem siv tau tam sim ntawd

Cov Lus Nug Feem Ntau

Elastomer twg zoo tshaj plaws rau dej kub thiab pa dej hauv cov twj tso kua zaub mov?

EPDM feem ntau yog qhov kev xaiv zoo tshaj plaws rau dej kub, pa dej, thiab CIP txog li 150 ° C. Tsis txhob siv nws hauv cov roj noj tau lossis cov kev pabcuam uas muaj roj ntau, qhov twg nws tuaj yeem lwj sai dua.

Kuv puas yuav tsum xaiv FKM rau cov mis nyuj lossis cov roj noj tau?

FKM feem ntau zoo dua li EPDM rau cov rog, roj, thiab ntau yam tshuaj lom neeg. Txawm li cas los xij, xyuas kom meej tias nws raug cov tshuaj ntxuav alkaline kub thiab cov pa ntshiab, uas tuaj yeem ua rau FKM siv tau ntev.

Cov khoom siv rau lub ntsej muag foob twg zoo tshaj plaws rau cov khoom noj uas ntxhib?

Silicon carbide yog ib qho kev xaiv zoo rau cov khoom siv abrasive xws li cov txiv hmab txiv ntoo slurries lossis crystallized qab zib. Nws muaj qhov nyuaj siab, tsis yooj yim hnav, thiab ruaj khov hauv cov twj tso kua dej huv uas nyuaj.

Kuv yuav paub li cas tias lub foob twj tso kua mis qib zaub mov puas ua raws li kev huv huv?

Xyuas kom tseeb tias cov ntaub ntub dej ua tau raws li koj cov qauv kev sib cuag zaub mov thiab qhov chaw tiav yog qhov haum rau kev huv, feem ntau nyob ib puag ncig 0.8 µm Ra lossis zoo dua. Tsis tas li ntawd xyuas kom meej tias sib xws nrog koj lub voj voog ntxuav.

Puas yog Victor Seals muab tau OEM-compatible food pump seals?

Yog. Victor Seals muab cov khoom siv foob pob hluav taws xob uas siv tau rau OEM thiab hloov tau rau ntau lub twj tso kua mis, pab cov pab pawg saib xyuas kev sib txuas cov khoom siv foob pob hluav taws xob kom haum rau cov xwm txheej ntawm cov txheej txheem ua zaub mov thiab cov kev xav tau ntawm kev pabcuam.