Inhloso yokusebenzisa i-ivalvu yokuhlolaukuvimbela ukugeleza okuphambene kwe-medium, kanyeivalvu yokuhlolangokuvamile ifakwa endaweni yokukhipha ipompo. Ngaphezu kwalokho, i-ivalvu yokuhlolaifakiwe endaweni yokukhipha i-compressor. Ngamafuphi, ukuze kuvinjelwe ukugeleza okuphambene kwe-medium,ama-valve okuhlolakufanele ifakwe emishinini, kumadivayisi noma kumapayipi.
Ngokuvamile, ukuphakamisa okuqondileama-valve okuhlolazikhethwa kumapayipi avundlile anobubanzi obungu-50mm.ama-valve okuhlolaingafakwa kokubili emigqeni evundlile neqondile. Ivalvu yonyawo ngokuvamile ifakwe kuphela emgqeni oqondile wokungena kwephampu, bese okuphakathi kugeleza kusuka phansi kuya phezulu.
Iivalvu yokuhlola ukujikaingenziwa ngomfutho ophezulu wokusebenza, i-PN efinyelela ku-42MPa, kanti i-DN nayo ingaba nkulu kakhulu, ifinyelela ngaphezu kuka-2000mm. Kuye ngezinto zendlu kanye nezivalo, noma iyiphi indawo yokusebenza kanye nanoma yiluphi uhlobo lokushisa lokusebenza lungasetshenziswa. Indawo yokusebenza ingamanzi, umusi, igesi, indawo ebolile, uwoyela, ukudla, imithi, njll. Ububanzi bokushisa bokusebenza bendawo yokusebenza buphakathi kuka -196~800°C.
Amavalvu okuhlola ukujikaingafakwa ezindaweni ezingenamkhawulo futhi ivame ukufakwa emigqeni evundlile, kodwa ingafakwa futhi emigqeni eqondile noma ethambekele.
Iivalvu yokuhlola uvemvaneifanele ukucindezela okuphansi kanye nobubanzi obukhulu, futhi isimo sokufakwa sinqunyelwe. Ngoba ukucindezela kokusebenza kweivalvu yokuhlola uvemvaneayikwazi ukuba phezulu kakhulu, kodwa ububanzi obujwayelekile bungaba bukhulu kakhulu, bungafinyelela ngaphezu kuka-2000mm, kodwa ingcindezi elinganiselwe ingaphansi kuka-6.4MPa.ivalvu yokuhlola uvemvanekungenziwa uhlobo lwe-pair clamp, oluvame ukufakwa phakathi kwama-flange amabili epayipi, futhi lusebenzisa uhlobo loxhumano lwe-pair clamp.
Iivalvu yokuhlola uvemvaneingafakwa endaweni engenamkhawulo futhi ingafakwa emgqeni ovundlile, oqondile noma othambekele.
I-Diaphragmama-valve okuhlolazilungele amapayipi avame ukushaywa yi-water hammer, futhi i-diaphragm ingasusa kahle i-water hammer lapho i-medium igeleza ngokumelene nokugeleza. Ngoba izinga lokushisa lokusebenza kanye nokucindezela kwe-diaphragmama-valve okuhlolaZinqunyelwe izinto ze-diaphragm, zivame ukusetshenziswa kumapayipi okushisa ajwayelekile anomfutho ophansi, ikakhulukazi afanelekela amapayipi amanzi. Ngokuvamile, izinga lokushisa lokusebenza le-medium liphakathi kuka -20~120°C, kanti ingcindezi yokusebenza ingaphansi kuka-1.6MPa, kodwa i-diaphragmivalvu yokuhlolaingafinyelela ubukhulu obukhulu, futhi i-DN ingaba ngaphezu kuka-2000mm.
I-Diaphragmama-valve okuhlolaziye zasetshenziswa kakhulu eminyakeni yamuva ngenxa yokusebenza kwazo okuhle kakhulu okungangeni manzi, isakhiwo esilula kanye nezindleko zokukhiqiza eziphansi.
Ibholaivalvu yokuhlolangoba uphawu luyibhola elimbozwe ngerabha, ngakho ukusebenza kokuvala kuhle, ukusebenza kuthembekile, futhi ukumelana nokushaqeka kwamanzi kuhle; Futhi ngoba uphawu lungaba ibhola elilodwa, noma lungenziwa amabhola amaningi, ngakho lungenziwa lube ububanzi obukhulu. Kodwa-ke, uphawu lwalo luyizikwele ezingenalutho ezimbozwe ngerabha, ezingafaneleki kumapayipi anomfutho ophezulu, ezifanele kuphela amapayipi anomfutho ophakathi nendawo naphansi.
Kusukela ezintweni zokwakha ibholaivalvu yokuhlolakungenziwa ngensimbi engagqwali, kanti ibhola elingenalutho lesivalo lingambozwa ngepulasitiki yobunjiniyela ye-PTFE, lingasetshenziswa futhi emzileni wemidiya ebolile evamile.
Izinga lokushisa lokusebenza lalolu hlobo lwe-check valve liphakathi kuka -101~150°C, ingcindezi yalo evamile ingu-≤4.0MPa, kanti ububanzi bobubanzi obujwayelekile buphakathi kuka-200~1200mm.
Isikhathi sokuthunyelwe: Ephreli-23-2023
