Amavalvu afanele izinga lokushisa eliphakathi nendawo -40℃～-196℃ abizwa ngokuthi ama-valve okushisa aphansi, futhi lawo mavalvu ngokuvamile asebenzisa amabhonethi anentamo ende.
Ibhonethi enentamo ende isetshenziselwa ukusho ukuthi i-valve ye-cryogenic ihlanganisa i-valve yokuvala ephuthumayo ye-cryogenic, i-cryogenic globe valve, i-cryogenic check valve, i-LNG ekhethekile ye-cryogenic valve, i-NG ekhethekile ye-cryogenic valve, njll., esetshenziswa kakhulu ezitshalweni zamakhemikhali ezifana njengamathani angu-300,000 e-ethylene kanye negesi yemvelo ewuketshezi.Imithombo yemithombo yezinga lokushisa eliphansi yoketshezi ephumayo efana ne-ethylene, umoya-mpilo owuketshezi, i-hydrogen ewuketshezi, igesi yemvelo ewuketshezi, imikhiqizo ye-petroleum ewuketshezi, njll., ayivutheli nje kuphela futhi iyaqhuma, kodwa iphinde ibe negesi lapho ishisisiwe, futhi umthamo unwebeka izikhathi ezingamakhulu uma ugasified. .
Kudingeka amabhonethi entamo ende ngoba:
(1) Ibhonethi yentamo ende inomsebenzi wokuvikela ibhokisi lokugxusha le-valve lokushisa eliphansi, ngoba ukucinana kwebhokisi lokugxusha kungenye yezikhiye zevalvu ephansi yokushisa.Uma kukhona ukuvuza kuleli bhokisi lokugxusha, kuzonciphisa umphumela wokupholisa futhi kubangele ukuba igesi ewuketshezi ihwamuke.Emazingeni okushisa aphansi, njengoba izinga lokushisa liyancipha, ukuqina kokupakisha kuyanyamalala kancane kancane, futhi ukusebenza kobufakazi bokuvuza kuncipha ngokufanele.Ngenxa yokuvuza kwe-medium, ukupakisha kanye nesiqu se-valve kubanda, okuthinta ukusebenza okuvamile kwesiqu se-valve futhi kubangela ukuthi isiqu se-valve siye phezulu naphansi.Ukupakisha kuklwebhekile, okubangela ukuvuza okukhulu.Ngakho-ke, kuyadingeka ukuqinisekisa ukuthi izinga lokushisa lengxenye yokugcwalisa lingaphezu kuka-8 °C.
(2) Isakhiwo sesembozo se-valve enentamo ende silungele ukugoqa izinto zokuvikela ezibandayo ukuvimbela ukulahlekelwa amandla abandayo ama-valve okushisa aphansi.
(3) Isakhiwo sentamo ende ye-valve ye-cryogenic ilungele ukushintshwa ngokushesha kwengxenye eyinhloko ye-valve ngokususa isembozo se-valve.Njengoba amapayipi enqubo nama-valve esigabeni esibandayo sezinto zokusebenza ngokuvamile afakwa \'ebhokisini elibandayo\', ikhava yevalvu enentamo ende ingaphumela \'odongeni lwebhokisi elibandayo\'.Lapho ushintsha izingxenye eziyinhloko ze-valve, kudingekile kuphela ukususa nokushintsha isembozo se-valve ngaphandle kokuhlakaza umzimba we-valve.Umzimba we-valve kanye nepayipi kushiselwe emzimbeni owodwa, okunciphisa ukuvuza kwebhokisi elibandayo ngangokunokwenzeka futhi kuqinisekise ukucinana kwevalvu.
Isikhathi sokuthumela: Oct-11-2022