Dresser couplings yog cov khoom tseem ceeb them nyiaj tau los ntawm cov kav dej. Lawv ua hauj lwm los ntawm kev sib txuas ib sab hauv mandrel mus rau ib qho kev qhia sab nraud kom nqus tau qhov kev hloov pauv los ntawm kev hloov pauv kub, kev co, lossis kev sib haum xeeb hauv av, thaum tuav lub foob. Lawv feem ntau yog siv los tiv thaiv kev puas tsuaj lossis xau rau cov kav dej los ntawm kev ntxhov siab los ntawm thermal expansion thiab contraction.
Daim ntawv thov Scenario
Thermal Piping Systems
Cov kav dej kub / Cov kav dej kub: Hauv cov tshuab cua sov xws li boilers, cov khoom siv hluav taws xob, thiab cov khoom siv cua sov, cov kav dej nthuav dav vim qhov kub thiab txias (piv txwv li, cov kav dej kub tuaj yeem tshaj 300 degree). Lub tes tsho nthuav dav sib koom ua ke absorbs axial hloov chaw (cov nyiaj them tuaj yeem ncav cuag ntau pua millimeters) los ntawm cov txheeb ze zawv zawg ntawm cov tub ntxhais thiab lub tes tsho, tiv thaiv cov raj xa dej vim kev ntxhov siab.
faus Pipelines: Tsim nyog rau underground faus thermal pipelines. Cov txheej txheej (xws li hlau lossis polyethylene) tiv thaiv kev sib koom ua ke los ntawm cov av corrosion thaum tso cai rau cov kav dej kom nthuav dav thiab cog lus ywj pheej.
Water Supply and Drainage Engineering
Ntev-Cov kav dej nyob deb: Hauv qhov ntev- cov kav dej nyob deb hla cov dej ntws, hav, lossis thaj chaw tsis ruaj khov, lub tes tsho nthuav dav sib koom ua ke them nyiaj rau cov xaim xaim los ntawm lub hauv paus kev daws teeb meem lossis qhov kub thiab txias, txo txoj kev pheej hmoo ntawm cov kav dej tawg.
Pump Station Outlet Pipelines: Nruab ntawm lub qhov hluav taws xob lub twj tso kua mis, nws nqus dej rauj cuam tshuam thiab kev vibration thaum lub twj tso kua mis pib- nce thiab kaw, tiv thaiv cov kav dej thiab cov khoom siv cuam tshuam.
Chemical thiab Petroleum Pipelines
Corrosive Media Tsheb thauj mus los: Rau corrosive media xws li acids, alkalis, thiab ntsev, lub tes tsho nthuav dav cov pob qij txha lined nrog corrosion- cov ntaub ntawv resistant (xws li PTFE los yog roj hmab) kom sealing thiab ntev kev pab cuam lub neej.
Siab -Tsuas Kub thiab Siab- Cov kav dej siab: Hauv siab - qhov kub thiab siab - cov kav dej siab (xws li, siab dua lossis sib npaug li 4.0 MPa, qhov kub siab dua lossis sib npaug li 400 degree) hauv cov roj refining thiab tshuaj tsim khoom, cov khoom lag luam txhim khu kev qha (xws li steel hlau los yog cov khoom siv tshwj xeeb) graphite packing).
Daim ntawv thov hauv nroog thiab tsev
Lub Nroog Integrated Utility Tunnels: Hauv cov chaw siv hluav taws xob hauv av, lub tes tsho nthuav dav sib koom ua ke kom haum rau cov kav dej xa mus los ntawm kev hloov pauv kub lossis kev sib haum xeeb hauv lub hauv paus, txo cov kev tu ntau zaus.
High-Rise Building Water Supply and Drainage: Compensates for expansion and contraction of risers in high-nce buildings because of temperature change, preventing pipeline rupture because of water hammer.
Siv tau Media Conditions
Kua Media
Dej: Haum rau dej kais dej, dej phwj tuaj, dej hiav txwv, thiab lwm yam, ua tiav kev sib khi los ntawm cov roj hmab sealing rings lossis graphite packing.
Cov Khoom Roj: Thaum thauj cov roj crude thiab cov khoom siv roj refined nyob rau hauv cov roj av thiab cov kav dej tshuaj, cov roj- cov roj hmab resistant los yog fluoroplastic seals yuav tsum tau.
Kev daws tshuaj: Rau cov kua qaub, alkali, thiab ntsev, cov khoom siv hauv ob sab phlu yuav tsum raug xaiv raws li qhov nruab nrab concentration (piv txwv li, PTFE linings tuaj yeem tiv taus acids thiab alkalis).
Gaseous Media
Chav: Thaum thauj khoom siab -kub hauv qhov cua sov, cov txheej txheem hlau sealing (xws li, graphite packing) thiab siab -cov ntaub ntawv kub (xws li stainless hlau) yuav tsum tau.
Natural Gas: Hauv cov kav dej, cov qauv tsim tshwj xeeb sealing (piv txwv li, ob npaug -cov qauv foob) yuav tsum tau tiv thaiv cov pa tawm.
Solid Particulate Media
Powder/Particle Conveying: Thaum thauj coal hmoov thiab ore particles nyob rau hauv mining thiab metallurgical industries, hnav- cov ntaub ntawv resistant (xws li, siab-chromium cam khwb cia hlau) thiab los tiv thaiv- clogging designs (piv txwv li, loj- lub tes tsho taub) yuav tsum tau.
Installation Environment Requirements
Qhov kub thiab txias
Txheem lub tes tsho nthuav dav pob qij txha yog tsim rau kub xws li ntawm -20℃mus rau +120℃. High - hom kub (xws li graphite packing seals) tuaj yeem tiv taus qhov kub siab tshaj 450℃, thaum tsis tshua muaj kub (xws li cov roj hmab tshwj xeeb) tuaj yeem hloov mus rau ib puag ncig mus txog -50℃.
Kev ntsuas siab
Kev ntsuas siab ntau yog 0.6MPa, 1.0MPa, 1.6MPa, thiab 2.5MPa. Siab - hom siab (xws li hlau alloy) tuaj yeem tiv taus siab tshaj 10MPa.
Qhov chaw txwv
Haum rau cov xwm txheej uas muaj cov kav dej sib txuas ua ke los yog xav tau kev teeb tsa sai. Axial nyiaj them tuaj yeem ua tiav los ntawm kev kho lub tes tsho ntev, tshem tawm qhov xav tau ntawm qhov chaw ntxiv (txuag ntau qhov chaw piv rau cov khoom siv hauv qab).
Kev vibration thiab poob siab
Nyob rau hauv ib puag ncig uas muaj kev vibration hnyav (xws li lub twj tso kua mis thiab cov kav dej compressor), txwv cov khoom siv lossis tiv thaiv -loosing bolts yuav tsum tau ntxiv los tiv thaiv lub tes tsho los ntawm kev sib cais vim kev co.
GNEE Dresser Coupling kev muag khoom
