Ii-valve yesangoiyi-valve evamile uma kuqhathaniswa nezinhlobo eziningi zokusetshenziswa.Isetshenziswa kakhulu endaweni yokonga amanzi, i-metallurgy nezinye izimboni.Ukusebenza kwayo okubanzi kuye kwaqashelwazihlelwe yimakethe.Eminyakeni eminingi yokuqondisa nokuhlolwa kwekhwalithi nobuchwepheshe, umbhali akenzanga ucwaningo oluthile kuphela ngokutholwa kwe-valve yesango, kodwa futhi nokusetshenziswa kwe-valve yesango, ngenze ucwaningo olunzulu nolucophelela.
Okulandelayo yingxoxo evamile ngesakhiwo, ukusetshenziswa, ukuxazulula izinkinga, ukuhlolwa kwekhwalithi kanye nezinye izici ze-valve yesango.
Isakhiwo
Isakhiwo se-i-valve yesango: Ii-valve yesangoyin ai-valveesebenzisa ipuleti lesango nesihlalo sevalvu ukulawula ukuvuleka nokuvala.Ii-valve yesangoikakhulukazi iqukethe umzimba we-valve, isihlalo se-valve, ipuleti lesango, isiqu se-valve, ikhava ye-valve, incwadi yokupakisha, ikhava yokucindezela, inati le-valve, isandla-isondo, njll. Kuye ngokushintsha kwesimo esihlobene phakathi kwesango nesihlalo se-valve, usayizi wesiteshi ungashintshwa futhi isiteshi singanqanyulwa.Ukuze uvale i-valve yesango ngokuqinile, ipuleti lesango kanye nesihlalo se-valve kuphansi.
Ngokusho kokuma okuhlukile kwesakhiwo se-valve yesango, i-valve yesango ingahlukaniswa ngezigaba ezimbili: i-wedge ne-parallel.
Ipuleti lesango le-valve yesango le-wedge lisesimweni, futhi indawo yokuvala ithambekele emgqeni ophakathi wesiteshi.I-wedge phakathi kwepuleti lesango nesihlalo se-valve isetshenziselwa ukuvala (ukuvala).Ipuleti le-wedge lingaba isango elilodwa noma isango eliphindwe kabili.
Indawo yokubeka uphawu ye-valve yesango elihambisanayo ihambisana nomunye nomunye futhi i-perpendicular emgqeni ophakathi wesiteshi.Ihlukaniswe yaba izinhlobo ezimbili: umshini ovulekile kanye nomshini ongavuli.Kukhona isango eliphindwe kabili elinomshini ovulekile.Lapho isango lehla, ama-wedges amasango amabili ahambisanayo asekela amasango amabili esihlalweni se-valve emthambekeni futhi anqume umzila wokugeleza.Lapho isango liphakama futhi livuleka, ifosholo nesango kubambisana nesango kuyahlukaniswa, isango likhuphukela ekuphakameni okuthile, futhi inkaba iphakanyiswe yi-con I-double gate plate ngaphandle komshini ovulekile.Lapho ipuleti lesango lishelela esihlalweni sevalvu eduze kwezihlalo ezimbili ezihambisanayo, ukucindezela koketshezi kusetshenziswa ukucindezela ipuleti lesango emzimbeni wevalvu ohlangothini lokuphuma kwevalvu ukuze kuvalwe uketshezi.
Ngokuhambisana nokunyakaza okuhlukene kwesiqu se-valve lapho isango livulwa futhi livaliwe, i-valve yesango ihlukaniswe izigaba ezimbili: i-valve yesango elivulekile kanye ne-dark-bar yesango.Lapho isiqu se-valve kanye nepuleti lesango le-valve yesango le-open-bar livuliwe noma livaliwe, ziyakhuphuka futhi ziwe ngesikhathi esifanayo;lapho i-valve yesango elimnyama ivuliwe noma ivaliwe, isiqu se-valve sizungeziswa kuphela, ukuphakama nokuwa kwesiqu se-valve akubonakali, futhi ipuleti ye-valve iyaphakanyiswa noma yehliswe.Inzuzo ye-valve yesango le-open-bar ukuthi ingakwazi ukwahlulela ukuphakama kokuvula kwesiteshi ngobude obukhuphukayo besiqu se-valve, kodwa ingafinyeza ubude bokubamba.Lapho ebheke esandleni-isondo noma isibambo, phendula isandla-isondo noma isibambo ngokwewashi, futhi i-valve ivaliwe.
Umgomo wesenzakalo nokukhethwa kokusetshenziswa kwe-valve yesango lesibili:
01 flati-valve yesango
Ukusetshenziswa kwe-valve yesango eliyisicaba:
(1) Amapayipi okuhambisa uwoyela negesi yemvelo, amavalvu esango ayisicaba anezimbobo zokuphambukisa nawo alungele ukuhlanza amapayipi.
(2) Amapayipi okuhambisa kanye nempahla yokugcina uwoyela ocolisisiwe.
(3) Imishini yokukhipha uwoyela negesi yemvelo.
(4) Amapayipi anemithombo yezinhlayiyana emisiwe.
(5) Ipayipi lokuhambisa igesi emadolobheni.
(6) Iphrojekthi yokuphakelwa kwamanzi.
Umgomo wokukhetha we-valve yesango eliyisicaba:
(1) Emapayipini okuhambisa uwoyela negesi yemvelo, khetha amavalvu esango ayisicaba anamasango angawodwa noma aphindwe kabili.Uma udinga ukuhlanza ipayipi, khetha i-valve yesango eliyisicaba elinesango elilodwa elinembobo yokuphambukisa.
(2) Ngomzila wepayipi kanye nempahla yokugcina uwoyela ocolisisiwe, khetha isango elilodwa elingenayo imbobo ephambukisayo noma ivalvu yesango eliyisicaba elinesango eliphindwe kabili.
(3) Kumathuluzi embobo yokukhipha uwoyela negesi yemvelo, khetha isango elilodwa elinesihlalo sevalvu esintantayo esimnyama esinombobo wokuphambukisa noma i-valve yesango eliyisicaba elinesango eliphindwe kabili.
(4) Ngamapayipi anemidiya yezinhlayiyana ezimisiwe, khetha ivalve yesango lepuleti elimise okumese.
(5) Emapayipini okuhambisa igesi emadolobheni, khetha isango elilodwa noma isango eliphindwe kabili elithambile elivula induku eyisicaba valvu yesango.
(6) Ngobunjiniyela bokuphakelwa kwamanzi, khetha ipuleti lesango elilodwa noma ipuleti lesango eliphindwe kabili ngaphandle kwembobo ephambukisayo induku evulekile yevalvu yesango eliyisicaba.
02 inqoi-valve yesango
Izikhathi ezisebenzayo ze-valve yesango le-wedge: Phakathi kwezinhlobo ezahlukene zama-valve, i-valve yesango isetshenziswa kabanzi.Ngokuvamile ifaneleka kuphela ukuvulwa okugcwele noma ukuvala ngokugcwele, futhi ayikwazi ukusetshenziselwa ukuqondisa nokuphusha.
I-valve yesango le-wedge ivame ukusetshenziswa ezindaweni lapho kungekho mfuneko eqinile yobukhulu bangaphandle be-valve, futhi izimo zokusebenzisa zinzima kakhulu.Isibonelo, ku-high-temperature kanye ne-high-pressure medium medium, kuyadingeka ukuthi izingxenye ezivaliwe kufanele zivalwe isikhathi eside.
Ngokuvamile, lapho izimo zokusetshenziswa noma izidingo zokusebenza okuthembekile kokuvala, ukucindezela okuphezulu, ukunqanyulwa komfutho ophezulu (umehluko omkhulu wengcindezi), ukunqanyulwa kwengcindezi ephansi (umehluko omncane wengcindezi), umsindo ophansi, imbobo yomoya kanye nesenzakalo sokuhwamuka, izinga lokushisa eliphezulu , izinga lokushisa eliphansi (ukubanda okujulile), kunconywa ukusebenzisa i-valve yesango lokubhoboza.Isibonelo, kunezicelo eziningi embonini yamandla, ukuncibilikisa i-petroleum, i-petrochemical, i-offshore oil, ubunjiniyela bamanzi kanye nobunjiniyela bokuhlanza indle ekwakhiweni kwamadolobha, kanye nemboni yamakhemikhali.
Umgomo wokukhetha:
(1) Izimfuneko zezici zoketshezi zevalvu.I-valve yesango isetshenziselwa izimo zokusebenza ezinokumelana nokugeleza okuncane, ikhono eliqinile lokujikeleza, izici ezinhle zokugeleza kanye nezidingo eziqinile zokubeka uphawu.
(2) Izinga lokushisa eliphezulu kanye ne-high pressure medium.Okufana ne-high-pressure steam, izinga lokushisa eliphezulu kanye nemikhiqizo kawoyela enengcindezi ephezulu.
(3) Izinga lokushisa eliphansi (ukubanda kakhulu) okuphakathi.Okufana ne-ammonia ewuketshezi, i-hydrogen eyi-liquid, i-oxygen eyi-liquid neminye imidiya.
(4) Ukucindezela okuphansi nokukhuluusayizi.Njengemiklamo yamanzi kampompi kanye nemiklamo yokuhlanza indle.
(5) Indawo yokufaka: khetha i-valve yesango lenduku emnyama lapho ukuphakama kokufakwa kunqunyelwe;khetha i-valve yesango lenduku evulekile lapho ukuphakama kunganqunyelwe.
(6) Kuphela uma ingavulwa ngokugcwele noma ivalwe ngokugcwele, futhi ingeke isetshenziselwe ukulungisa nokushaya, lapho kungakhethwa khona i-valve yesango lokubhoboza.
Amaphutha amathathu avamile nokugcinwa
01 Amaphutha ajwayelekile kanye nezimbangela zamavalvu esango
Ngemuva kokusetshenziswa kwe-valve yesango, izinkinga ezilandelayo zivame ukwenzeka ngenxa yokushisa, ingcindezi, ukugqwala nokunyakaza okuhlobene koxhumana naye ngamunye.
(1) Ukuvuza: Kunezinhlobo ezimbili, okungukuthi, ukuvuza kwangaphandle kanye nokuvuza kwangaphakathi.Ukuvuza ngaphandle kwe-valve kubizwa ngokuthi ukuvuza, futhi ukuvuza kuvamile ebhokisini lokupakisha nokuxhumeka kwe-flange.
Izizathu zokuvuza kwebhokisi lokupakisha: izinhlobonhlobo noma ikhwalithi yokupakisha ayihlangabezani nezidingo;ukuguga kokupakisha noma ukuguga kwesiqu se-valve;ukukhulula indlala yokupakisha;ukunwaya ebusweni besiqu se-valve.
Izizathu zokuvuza ekuxhumekeni kwe-flange: impahla noma usayizi we-gasket awuhlangabezani nezidingo;ikhwalithi yokucubungula ye-flange yokuvala uphawu impofu;amabhawodi okuxhumana aboshwe ngendlela engafanele;ukucushwa kwepayipi akunangqondo, okubangela imithwalo eyengeziwe eyengeziwe ekuxhumekeni.
Izizathu zokuvuza kwangaphakathi kwe-valve: Ukuvuza okubangelwa ukuvaleka okuxegayo kwe-valve kuwukuvuza kwangaphakathi, okubangelwa ukulimala kwendawo yokuvala yevalvu noma impande exegayo yendandatho yokuvala.
(1) Ukugqwala kuvame ukugqwala komzimba we-valve, isembozo se-valve, isiqu se-valve kanye nendawo yokuvala ye-flange.Ukugqwala kubangelwa ikakhulukazi isenzo se-medium, kanye nokukhululwa kwama-ion kuma-fillers nama-gaskets.
(2) Ukuklwebheka: ukudonsa noma ukuxebuka kwendawo yasendaweni kwenzeka lapho ipuleti lesango nesihlalo sevalvu kunyakaza okuhlobene ngaphansi kwengcindezi ethile yesilinganiso sokuthintana.
02 Ukugcinwa kwevalvu yesango
(1) Ukulungiswa kokuvuza kwangaphandle kwe-valve
Lapho ucindezela isigcwalisi, umshudo wendlala engenhla kufanele ukalwe ukuze kugwenywe ukutsheka kwendlala, kushiye igebe lokucindezelwa.Ngenkathi ucindezela isigcwalisi, isiqu se-valve kufanele siguqulwe ukuze senze isigcwalisi sizungeze umfaniswano we-valve stem futhi kuvimbele ukucindezela ukuthi ungafi, ukuze ungaphazamisi ukujikeleza kwe-valve stem, ukwandisa ukuguga kwesigcwalisi, futhi unciphise isevisi. ukuphila.Ingaphezulu lesiqu se-valve liyaklwejwa, ukuze okuphakathi kube lula ukuvuza.Kufanele icutshungulwe ukuze kuqedwe imihuzuko ebusweni besiqu se-valve ngaphambi kokusetshenziswa.
Ngokuvuza kokuxhumeka kwe-flange, uma i-gasket yonakalisiwe, kufanele ishintshwe;uma impahla ye-gasket ingakhethiwe kahle, izinto ezingahlangabezana nezidingo zokusetshenziswa kufanele zikhethwe;uma indawo yokuvala i-flange ingeyekhwalithi yokucubungula engalungile, indawo yokuvala i-flange kufanele isuswe futhi icutshungulwe kabusha kuze kube yilapho ifaneleka.
Ngaphezu kwalokho, ukuqinisa kahle amabhawodi e-flange, ukulungisa kahle ipayipi, nokugwema imithwalo eyengeziwe eyengeziwe ekuxhumekeni kwe-flange kusiza ukuvimbela ukuvuza ekuxhumekeni kwe-flange.
(2) Ukulungiswa kokuvuza kwangaphakathi kwe-valve
Ukulungiswa kokuvuza kwangaphakathi kuwukuqeda umonakalo endaweni evalekayo kanye nokuxega kwempande yendandatho yokuvala (uma indandatho yokuvala igxilile epuletini levalvu noma esihlalweni sevalvu ngokucindezela noma ngentambo).Uma indawo yokuvala icutshungulwa ngokuqondile emzimbeni we-valve kanye nepuleti le-valve, ayikho inkinga yezimpande ezixegayo nokuvuza.
Lapho indawo yokuvala ilimele kakhulu futhi indawo yokuvala yakhiwe ngendandatho yokuvala, indandatho endala kufanele ikhishwe futhi ifakwe indandatho entsha yokuvala;uma indawo yokuvala icutshungulwa ngokuqondile emzimbeni we-valve, indawo yokuvala eyonakele kufanele isuswe kuqala, bese indandatho entsha yokuvala noma indawo esetshenziwe kufanele igaywe ibe indawo entsha yokuvala.Lapho imihuzuko, ama-bumps, ama-crush, ama-dents nezinye iziphambeko zendawo yokuvala zingaphansi kuka-0.05mm, zingaqedwa ngokugaya.
Umsuka wendandatho yokuvala uyavuza.Lapho indandatho yokuvala icindezelwa futhi igxilile, ibhande le-PTFE noma upende omhlophe owugqinsi ungabekwa phansi kwesihlalo sevalvu noma umsele wendandatho yokuvala, bese ucindezelwa kwendandatho yokuvala ukugcwalisa impande yendandatho yokuvala.Uma indandatho yokuvala igxilwe ngomucu, ibhande le-PTFE noma upende owugqinsi omhlophe kufanele ubekwe phakathi kwentambo Ukuvuza phakathi kwemigqa.
(3) Ukulungiswa kokugqwala kwe-valve
Ngokuvamile, umzimba we-valve kanye nesembozo se-valve kugqwalile ngokulinganayo, kuyilapho isiqu se-valve sivame ukugoba.Lapho ulungisa, umkhiqizo obolayo kufanele ususwe kuqala.Ukuze isiqu se-valve esinemigodi yokubhoboza, kufanele sicutshungulwe ku-lathe ukuze kuqedwe ukucindezeleka, kushintshelwe kwisigcwalisi esiqukethe i-ejenti ekhishwa isikhathi eside, noma ukuhlanza isigcwalisi ngamanzi acwengekile ukuze kukhishwe ama-ion kusifaki esinomphumela ogqwalisayo. esiqwini se-valve.
(4) Ukulungisa imihuzuko endaweni evalekayo
Ngesikhathi sokusetshenziswa kwe-valve, imihuzuko endaweni yokuvala kufanele ivinjwe ngangokunokwenzeka, futhi i-torque akufanele ibe nkulu kakhulu lapho uvala i-valve.Uma imihuzuko endaweni yokuvala ingaqedwa ngokugaya.
Ukutholwa kwama-valve amasango amane
Esimeni samanje semakethe kanye nezidingo zomsebenzisi, ama-valve esango lensimbi enza ingxenye enkulu.Njengomhloli wekhwalithi yomkhiqizo, ngaphezu kokujwayela ukuhlolwa kwekhwalithi yomkhiqizo, kufanele futhi ube nokuqonda okuhle komkhiqizo ngokwawo.
01 Isisekelo sokuhlola sevalvu yesango lensimbi
Ukutholwa kwe-valve yesango lensimbi kusekelwe ku-GB/T12232-2005 ejwayelekile kazwelonke "ivalvu ejwayelekile yokuxhuma i-valve yesango lensimbi".
02 Izinto zokuhlolwa kwevalvu yesango lensimbi
Ihlanganisa ngokuyinhloko: i-logo, * ukushuba kodonga oluncane, ukuhlolwa kwengcindezi, ukuhlolwa kwegobolondo, njll. Phakathi kwazo, ukushuba kodonga, ingcindezi nokuhlolwa kwegobolondo kuyizinto zokuhlola ezidingekayo nezinto ezibalulekile.Uma kunezinto ezingafanelekile, zingahlulelwa ngokuqondile njengemikhiqizo engafaneleki.
Ngamafuphi, ukuhlolwa kwekhwalithi yomkhiqizo kuyingxenye ebalulekile yokuhlolwa komkhiqizo wonke.Ukubaluleka kwayo kuyabonakala.Njengabasebenzi abaphambili abahlolayo, kufanele sihlale siqinisa ikhwalithi yethu.Akufanele nje senze umsebenzi omuhle ekuhloleni umkhiqizo, kodwa futhi sibe nokuqonda ngemikhiqizo ehloliwe, ukuze senze kangcono umsebenzi wokuhlola.
Isikhathi sokuthumela: Mar-23-2023