Flexible Coupling yog dab tsi?
Hauv cov kav dej, qhov sib txuas hloov tau yooj yim yog ib qho kev sib koom ua ke uas clamps ob grooved -kawg kav ua ke nrog cov vaj tse sib cais thiab cov roj hmab hluavtaws. Cov ntu hauv vaj tse koom nrog cov grooves txiav rau hauv cov yeeb nkab kawg, lub gasket seals qhov sib koom ua ke, thiab cov kab khiav bolts clamp lub rooj sib txoos. Cov qauv tsim tau yooj yim tso cai rau angular deflection ntawm ob peb degrees ntawm ib qho kev sib koom ua ke, me me axial txav thiab kev sib kis ntawm kev co ntawm cov khoom siv sib txuas, uas ua rau nws muaj txiaj ntsig zoo rau kev ua kom sov thermal expansion, lub hauv paus kev daws teeb meem thiab twj tso kua mis lossis compressor suab nrov.
Kev sib koom ua haujlwm li cas
Kev sib khi thiab kev tuav pov hwm tshwm sim hauv ob kauj ruam cais. Lub gasket yog lubricated thiab haum rau ob lub yeeb nkab kawg, tom qab ntawd cov ntu vaj tse tau muab tso rau hauv lub gasket nrog cov yawm sij zaum hauv qhov grooves. Tightening lub bolts compresses lub gasket tiv thaiv cov yeeb nkab nto rau sealing, thaum cov yawm sij xauv rau hauv grooves los tiv thaiv qhov kawg thrust. Nyob rau hauv ib qho yooj yim coupling, cov yuam sij vaj tse yog zoo li tus tso cai rau me ntsis kev sib hloov thiab axial ua si, yog li cov kev sib koom ua ke coj li pob khawm es tsis yog ib qho kev sib txuas.
Khoom siv, foob thiab ntsuas
Cov vaj tsev feem ntau yog ua los ntawm cov hlau nplaum, cam khwb cia lossis forged carbon steel, lossis stainless hlau rau kev pabcuam corrosive. Gaskets raug xaiv rau cov kua dej thiab qhov kub thiab txias: NBR nitrile roj hmab rau dej, roj thiab kev pabcuam dav dav, EPDM rau cov dej kub, chav condensate thiab ntau cov kev pabcuam tshuaj, thiab fluororubber lossis tshwj xeeb elastomers qhov kev tawm tsam hnyav xav tau. Qhov ntsuas kub yog teem los ntawm lub gasket, tsis yog lub tsev.
| Cheebtsam | Cov Khoom Siv | Hom kab mob |
|---|---|---|
| Tsev | Cov hlau tsis muaj hlau, carbon hlau, stainless hlau | Ua haujlwm siab 0.6-6.4 MPa los ntawm qhov loj thiab chav kawm |
| Gasket NBR | Nitrile roj hmab | -30 rau +120 degrees Celsius |
| Gasket EPDM | Ethylene-propylene roj hmab | -40 rau +150 degrees Celsius |
| Bolts | Carbon steel, stainless hlau, nrog kev tiv thaiv corrosion | Torque rau qhov sib txuas loj |
Cov txiaj ntsig ntawm Flexible Couplings
Saj zawg zog couplings zam yeeb nkab misalignment thaum lub sij hawm installation, yog li cov layout tsis tas yuav tsum tau dimensionally zoo meej. Lawv nqus cov thermal expansion thiab contraction tsis hnyav expansion loops, cais cov qauv -yuam kev co thiab suab nrov los ntawm cov twj tso kua mis thiab compressors, cia ceev sib dhos yam tsis muaj vuam los yog threading, thiab ua rau yav tom ntej disassembly rau kev kho yooj yim. Vim tias qhov sib koom ua ke yog cov neeg kho tshuab, nws tuaj yeem ntsia tau rau hauv qhov chaw kaw thiab hauv qhov chaw ntub dej lossis muaj kev phom sij uas tsis pub ua haujlwm kub.
Tej kev siv
Flexible grooved couplings yog dav siv nyob rau hauv hluav taws kub -kev tiv thaiv sprinkler systems, HVAC chilled thiab kub dej loops, lub nroog thiab industrial dej, mining slurry thiab dej kab, compressed cua tshuab, shipboard piping thiab ib ntus los yog skid - mounted piping. Lawv kuj yog tus txheej txheem kev koom ua ke rau loj - txoj kab uas hla steel yeeb nkab hauv cov tsev uas ceev thiab kev co tswj qhov teeb meem.
Xaiv thiab Installation Points
Xaiv cov chav kawm sib txuas los ntawm kev ua haujlwm siab thiab cov yeeb nkab loj, tom qab ntawd txheeb xyuas gasket compatibility nrog cov kua thiab qhov kub thiab txias. Groove cov yeeb nkab xaus rau qhov chaw tsim khoom sib txuas los yog ib qho AWWA C606, thiab npaj qhov kawg square thiab dawb ntawm burrs. Siv cov roj nplaum uas tau teev tseg, haum rau lub gasket yam tsis muaj kev sib tw, thiab ceev cov bolts sib npaug rau qhov pom zoo torque. Xyuas qhov deflection txwv ib leeg thiab tsis txhob yuam lub coupling tshaj nws angular pub, vim hais tias lub gasket foob thiab zawj kev koom tes nyob ntawm seb lub sib dhos kom raug.
Common Misconceptions
Ib qho yooj yim coupling tsis yog ncej coupling; flexible couplings rau rotating machinery yog cov khoom sib txawv tsev neeg uas kis torque. Ib qho yooj yim coupling tsis yog kho clamp, thiab nws tsis nres kawg thrust ntawm nws tus kheej, yog li unrestrained axial loads yuav tsum tau anchored los ntawm lwm txoj kev. Qhov ntsuas kub yog teeb tsa los ntawm lub gasket, yog li kev sib txuas nrog lub siab - lub tsev siab tseem xav tau qhov tseeb elastomer rau kev pabcuam kub lossis hnyav. Kev thov kev pab cuam deb tshaj 150 degrees Celsius rau cov qauv roj hmab-cov hlua khi yuav tsum raug txheeb xyuas cov ntaub ntawv gasket.
FAQ
Dab tsi yog qhov sib txawv ntawm qhov sib txuas ua ke thiab hloov tau yooj yim?
Ib qho kev sib txuas ruaj khov kaw cov yeeb nkab xaus rau hauv txoj hauj lwm uas tsis muaj lub kaum sab xis lossis axial txav, thaum lub qhov sib txuas yooj yim tso cai txwv tsis pub deflection, axial ua si thiab kev vibration absorption.
Puas hloov tau cov couplings yuav tsum tau grooved yeeb nkab xaus?
Yog lawm, tus qauv grooved tsim xav kom cov yeeb nkab kawg yuav tsum tau grooved rau cov chaw tsim khoom qhov ntev lossis ib AWWA C606 kom cov yuam sij vaj tse tuaj yeem koom nrog.
Cov kev ntsuas siab twg muaj?
Kev ua haujlwm siab yog 0.6-6.4 MPa, nyob ntawm cov chav sib txuas, qhov loj thiab cov khoom siv. Nco ntsoov xyuas qhov ntsuas tiv thaiv qhov system tsim siab.
Dab tsi gasket kuv yuav tsum xaiv rau cov dej kub?
EPDM yog qhov kev xaiv ib txwm muaj rau cov dej kub thiab kev pabcuam condensate. NBR haum rau dej dav dav thiab kev pabcuam roj ntawm qhov kub nruab nrab.
Puas siv tau cov couplings hloov tau siv rau kev tiv thaiv hluav taws?
Yog lawm, grooved couplings yog ib txoj hauv kev sib koom ua ke rau cov tshuab nqus dej thiab cov kav dej, thiab tau teev thiab pom zoo los ntawm hluav taws- cov lej tiv thaiv hauv ntau lub tebchaws.
Ntau npaum li cas deflection tuaj yeem hloov pauv tau?
Qhov tseem ceeb yog ib mus rau peb degrees rau ib qho kev sib koom ua ke nyob ntawm qhov loj thiab tsim. Txheeb xyuas cov ntaub ntawv tsim khoom thiab tsis txhob tshaj qhov txwv thaum lub sijhawm teeb tsa.