I-valve yesango iyi-valve ejwayelekile ejwayelekile, esetshenziswa kabanzi, esetshenziswa ikakhulukazi ukongiwa kwamanzi, i-metallurgy nezinye izimboni, uhla lwawo olubanzi lokusebenza luye lwaqashelwa yimakethe, i-TWS ngekhwalithi nokuqondisa kwezobuchwepheshe kanye nomsebenzi wokuhlola iminyaka eminingi, ngaphezu kokutholwa kwama-valve esango banocwaningo oluthile, kodwa futhi nasekusetshenzisweni kwama-valve esango, ukuxazulula izinkinga kanye nezinye izici zocwaningo ngokucophelela kanye nokunye.
Ngokwezimo ezihlukene zesakhiwo samavalvu esango, ama-valve esango angahlukaniswa ngezigaba ezimbili: uhlobo lwe-wedge kanye nohlobo oluhambisanayo.
Ipuleti lesango le-valve yesango le-wedge limise okwe-wedge, futhi indawo yokuvala ithambekele emgqeni ophakathi wesiteshi, futhi umphetho ophakathi kwepuleti lesango nesihlalo se-valve usetshenziselwa ukufeza ukuvala (ukuvala). Ipuleti le-wedge lingaba isango elilodwa noma isango eliphindwe kabili.
Izindawo zokuvala ze-valve yesango elihambisanayo zihambisana nomunye nomunye futhi zi-perpendicular emgqeni ophakathi wesiteshi, ezihlukaniswe zibe izinhlobo ezimbili: ngomshini wokuvula nangaphandle. Kukhona inqama ephindwe kabili enomshini wokubopha inqama, lapho inqama yehla, inkemba yezinqama ezimbili ezihambisanayo isekelwe phezu kwesihlalo sevalvu ngendiza ethambekele, umzila wokugeleza uyasikwa, lapho inqama iphakama futhi ivuleka, inkaba ihlukaniswa endaweni yokukhwelana kwenqama, inqama iphakama ifinyelele ukuphakama okuthile, futhi umcengezi uphakanyiswe yinqama. Uma inqama ishelela esihlalweni sevalvu eduze kwezihlalo ezimbili ezihambisanayo, ukucindezela koketshezi kusetshenziswa ukucindezela inqama emzimbeni wevalvu ohlangothini lokuphuma kwevalvu ukuze kuvalwe uketshezi.
Ngokuhambisana nokunyakaza okuhlukile kwesiqu se-valve lapho isango livulwa futhi livaliwe, ama-valve esango ahlukaniswa ngezigaba ezimbili: ama-valve esango le-stem akhuphukayo kanye nama-valve esango le-stem afihliwe. Isiqu se-valve kanye nesango le-valve yesango elikhuphukayo liyakhuphuka futhi liwe ngesikhathi esifanayo lapho kuvulwa noma kuvalwa; lapho i-valve yesango ye-stem efihliwe ivuliwe noma ivaliwe, i-valve stem ijikeleza kuphela, futhi ukuphakama nokuwa kwe-valve stem akubonakali, futhi ipuleti ye-valve iphakama noma iwe. Inzuzo ye-valve yesango le-stem ekhuphukayo ukuthi ukuphakama kokuvula isiteshi kungahlulelwa ngokuphakama kokuphakama kwesiqu se-valve, kodwa ukuphakama okuphakathi kungafinyezwa. Uma ubhekene nesondo lesandla noma isibambo, phendula isondo lesandla noma isibambo ngokwewashi ukuze uvale ivalvu.
2. Izikhathi nezimiso zokukhetha zamavalvu esango
01. I-valve yesango eliyisicaba
Izikhathi zama-valve amasango ayisicaba:
(1) Amapayipi kawoyela negesi yemvelo. Ama-valve esango ayisicaba anezimbobo zokuphambukisa nawo akulungele ukuhlanza amapayipi.
(2) Amapayipi nempahla yokugcina amafutha acolisisiwe.
(3) Izitolo zokukhiqiza uwoyela negesi yemvelo.
(4) Amapayipi anemithombo yezinhlayiyana emisiwe.
(5) Amapayipi edolobha ahambisa igesi.
(6) Imiklamo yokuhlinzeka ngamanzi.
Umgomo wokukhetha we-valve yesango eliyisicaba:
(1) Emapayipini okuhambisa uwoyela negesi yemvelo, kukhethwa amavalvu esango lepuleti elinamasango angawodwa noma amabili. Uma udinga ukuhlanza ipayipi, khetha ivalvu yesango eliyisicaba enenduku eyodwa nembobo yokuphambukisa.
(2) Epayipini lokuthutha kanye nempahla yokugcina uwoyela ocolisisiwe, kukhethwa ivalvu yesango eliyisicaba elinesango elilodwa noma elikabili elingenayo imbobo ephambukisayo.
(3) Ngomshini wokuxhashazwa wembobo kawoyela negesi yemvelo, ivalvu yesango eliyisicaba elinepuleti lesango elilodwa noma elikabili elinesihlalo sevalvu esintantayo esimnyama kanye nembobo yokuphambukisa kuyakhethwa.
(4) Emapayipini anezinhlayiyana ezimisiwe, kukhethwa amavalvu esango ayisicaba amise okwemmese.
(5) Emapayipini okuhambisa igesi emadolobheni, isango elilodwa noma ipuleti lesango eliphindwe kabili elivala induku evulekile yevalvu yesango eliyisicaba liyakhethwa.
(6) Emisebenzini yokuphakelwa kwamanzi, isango elilodwa noma i-valve yesango eliphindwe kabili ngaphandle kwembobo ephambukisayo induku evulekile yesango eliyisicaba liyakhethwa.
02. I-valve yesango le-Wedge
Izikhathi zokufaka isicelo se-valve yesango le-Wedge: ezinhlotsheni ezahlukene zama-valve, i-valve yesango iyona esetshenziswa kakhulu, ngokuvamile ifaneleka kuphela ukuvuleka okugcwele noma ukuvala ngokugcwele, ayikwazi ukusetshenziselwa ukulungiswa nokudonsa.
Ama-valve esango le-Wedge ngokuvamile asetshenziswa ezindaweni lapho kungekho khona izidingo eziqinile zezilinganiso zangaphandle ze-valve, futhi izimo zokusebenzisa zinzima kakhulu. Isibonelo, indawo yokusebenza yokushisa okuphezulu nokucindezela okuphezulu kudinga izingxenye zokuvala ukuba zivalwe isikhathi eside.
Ngokuvamile, ukusetshenziswa kokucindezela okuphezulu, ukunqunywa kwengcindezi ephezulu (umehluko omkhulu wengcindezi), ukunqunywa kwengcindezi ephansi (umehluko omncane wengcindezi), umsindo ophansi, i-cavitation kanye ne-vaporization, izinga lokushisa eliphezulu eliphakathi, izinga lokushisa eliphansi (cryogen), i-valve yesango le-wedge inconywa. Isibonelo, isetshenziswa kakhulu embonini yamandla kagesi, ukuncibilikisa i-petroleum, imboni ye-petrochemical, uwoyela wasolwandle, ubunjiniyela bamanzi ampompi kanye nobunjiniyela bokuhlanza indle ekwakhiweni kwamadolobha, kanye nemboni yamakhemikhali.
Umgomo wokukhetha:
(1) Izimfuneko zezici zoketshezi zevalvu. Ama-valve esango akhethelwa izimo zokusebenza ezinokumelana nokugeleza okuncane, umthamo oqinile wokugeleza, izici ezinhle zokugeleza kanye nezidingo eziqinile zokuvala uphawu.
(2) Izinga lokushisa eliphezulu kanye ne-high-pressure medium. Okufana ne-high-pressure steam, izinga lokushisa eliphezulu kanye namafutha anomfutho ophezulu.
(3) Izinga lokushisa eliphansi (cryogen) medium. Okufana ne-ammonia ewuketshezi, i-hydrogen eyi-liquid, i-oxygen eyi-liquid neminye imidiya.
(4) Ukucindezela okuphansi nobubanzi obukhulu. Njengemiklamo yamanzi kampompi, amaphrojekthi okuhlanza indle.
(5) Amapayipi edolobha ahambisa igesi.
(6) Imiklamo yokuhlinzeka ngamanzi.
Isimiso sokukhetha i-valve yesango eliyisicaba:
(1) Emapayipini okuhambisa uwoyela negesi yemvelo, kukhethwa amavalvu esango lepuleti elinamasango angawodwa noma amabili. Uma udinga ukuhlanza ipayipi, khetha ivalvu yesango eliyisicaba enenduku eyodwa nembobo yokuphambukisa.
(2) Epayipini lokuthutha kanye nempahla yokugcina uwoyela ocolisisiwe, kukhethwa ivalvu yesango eliyisicaba elinesango elilodwa noma elikabili elingenayo imbobo ephambukisayo.
(3) Ngomshini wokuxhashazwa wembobo kawoyela negesi yemvelo, ivalvu yesango eliyisicaba elinepuleti lesango elilodwa noma elikabili elinesihlalo sevalvu esintantayo esimnyama kanye nembobo yokuphambukisa kuyakhethwa.
(4) Emapayipini anezinhlayiyana ezimisiwe, kukhethwa amavalvu esango ayisicaba amise okwemmese.
(5) Emapayipini okuhambisa igesi emadolobheni, isango elilodwa noma ipuleti lesango eliphindwe kabili elivala induku evulekile yevalvu yesango eliyisicaba liyakhethwa.
(6) Emisebenzini yokuphakelwa kwamanzi, isango elilodwa noma i-valve yesango eliphindwe kabili ngaphandle kwembobo ephambukisayo induku evulekile yesango eliyisicaba liyakhethwa.
02. I-valve yesango le-Wedge
Izikhathi zokufaka isicelo se-valve yesango le-Wedge: ezinhlotsheni ezahlukene zama-valve, i-valve yesango iyona esetshenziswa kakhulu, ngokuvamile ifaneleka kuphela ukuvuleka okugcwele noma ukuvala ngokugcwele, ayikwazi ukusetshenziselwa ukulungiswa nokudonsa.
Ama-valve esango le-Wedge ngokuvamile asetshenziswa ezindaweni lapho kungekho khona izidingo eziqinile zezilinganiso zangaphandle ze-valve, futhi izimo zokusebenzisa zinzima kakhulu. Isibonelo, indawo yokusebenza yokushisa okuphezulu nokucindezela okuphezulu kudinga izingxenye zokuvala ukuba zivalwe isikhathi eside.
Ngokuvamile, ukusetshenziswa kokucindezela okuphezulu, ukunqunywa kwengcindezi ephezulu (umehluko omkhulu wengcindezi), ukunqunywa kwengcindezi ephansi (umehluko omncane wengcindezi), umsindo ophansi, i-cavitation kanye ne-vaporization, izinga lokushisa eliphezulu eliphakathi, izinga lokushisa eliphansi (cryogen), i-valve yesango le-wedge inconywa. Isibonelo, isetshenziswa kakhulu embonini yamandla kagesi, ukuncibilikisa i-petroleum, imboni ye-petrochemical, uwoyela wasolwandle, ubunjiniyela bamanzi ampompi kanye nobunjiniyela bokuhlanza indle ekwakhiweni kwamadolobha, kanye nemboni yamakhemikhali.
Umgomo wokukhetha:
(1) Izimfuneko zezici zoketshezi zevalvu. Ama-valve esango akhethelwa izimo zokusebenza ezinokumelana nokugeleza okuncane, umthamo oqinile wokugeleza, izici ezinhle zokugeleza kanye nezidingo eziqinile zokuvala uphawu.
(2) Izinga lokushisa eliphezulu kanye ne-high-pressure medium. Okufana ne-high-pressure steam, izinga lokushisa eliphezulu kanye namafutha anomfutho ophezulu.
(3) Izinga lokushisa eliphansi (cryogen) medium. Okufana ne-ammonia ewuketshezi, i-hydrogen eyi-liquid, i-oxygen eyi-liquid neminye imidiya.
(4) Ukucindezela okuphansi nobubanzi obukhulu. Njengemiklamo yamanzi kampompi, amaphrojekthi okuhlanza indle.
(5) Indawo yokufaka: lapho ukuphakama kokufakwa kunqunyelwe, kukhethwa i-valve yesango lenduku emnyama; Lapho ukuphakama kunganqunyelwe, i-valve yesango lenduku evulekile iyakhethwa.
(6) Kuphela uma ingavulwa ngokugcwele noma ivalwe ngokugcwele, futhi ingakwazi ukusetshenziselwa ukulungiswa nokudonsa, i-valve yesango le-wedge ingakhethwa.
3. Amaphutha kanye nokugcinwa okujwayelekile
01. Amaphutha ajwayelekile kanye nezimbangela zamavalvu esango
Ngemva kokusetshenziswa kwe-valve yesango, izinkinga ezilandelayo zivame ukwenzeka ngenxa yokushisa okuphakathi, ingcindezi, ukugqwala kanye nokunyakaza okuhlobene koxhumana naye ngamunye.
(1) Ukuvuza: Kunezinhlobo ezimbili, okuwukuthi ukuvuza kwangaphandle kanye nokuvuza kwangaphakathi. Ukuvuza ngaphandle kwe-valve kubizwa ngokuthi ukuvuza, futhi ukuvuza kuvamile emabhokisini okugxusha kanye noxhumo lwe-flange.
Isizathu sokuvuza kwebhokisi lokugxusha: izinhlobonhlobo noma ikhwalithi yokupakisha ayihlangabezani nezidingo; Ukupakisha ukuguga noma ukugqoka kwesiqu; Indlala epakishayo exegayo Ukuhushulwa phezu kwesiqu.
Isizathu sokuvuza kokuxhumeka kwe-flange: impahla noma ubukhulu be-gasket abuhlangabezani nezidingo; Ikhwalithi yokucubungula engalungile yendawo yokubeka uphawu ye-flange; ukuqiniswa okungalungile kwama-bolts wokuxhuma; Ipayipi alilungiswanga kahle, okuholela ekulayisheni okwengeziwe ngokweqile emajoyintini.
Isizathu sokuvuza kwangaphakathi kwe-valve: Ukuvuza okubangelwa ukuvaleka okuxekethile kwe-valve ukuvuza kwangaphakathi, okubangelwa ukulimala kwendawo yokuvala ye-valve noma impande exekethile yendandatho yokuvala.
(1) Ukugqwala kuvame ukubangelwa ukugqwala kwendawo evalekayo yomzimba we-valve, isembozo se-valve, isiqu se-valve kanye ne-flange. Ukugqwala kubangelwa ikakhulukazi isenzo se-medium, kodwa futhi umphumela wokukhulula ama-ion ku-filler kanye ne-gasket.
(2) Imihuzuko: ukuxubha kwendawo yendawo noma ukuxebuka okwenzeka lapho inqama nesihlalo sevalvu zinyakaza okuhlobene ngaphansi kwengcindezi ethize ethintwayo.
02. Ukugcinwa kweama-valve esango
(1) Ukulungiswa kokuvuza kwangaphandle kwe-valve
Lapho ucindezela ukupakisha, ibhawudi lendlala kufanele lifakwe ngokulinganayo ukuze kugwenywe ukutsheka kwendlala futhi kushiye igebe lokucindezelwa. Ngesikhathi esifanayo nokucindezela ukupakisha, isiqu se-valve kufanele sijikelezwe ukuze senze ukupakisha eduze kwe-valve stem uniform, futhi kuvimbele ukucindezela ukuba kufe kakhulu, ukuze kungathinti ukujikeleza kwe-valve stem, ukwandisa ukuguga kokupakisha, futhi unciphise impilo yesevisi. Ingaphezulu lesiqu se-valve liyaluma, ukuze okuphakathi kube lula ukuphuma, futhi kufanele kucutshungulwe ukuze kuqedwe izibazi 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 ikhwalithi yokucubungula yendawo yokuvala i-flange iphansi, indawo yokuvala i-flange kufanele isuswe futhi icutshungulwe kabusha kuze kube yilapho ifaneleka.
Ukwengeza, ukuqiniswa okufanele kwamabhawodi e-flange, ukumiswa kahle kwamapayipi, nokugwema imithwalo eyengeziwe eyengeziwe ekuxhumekeni kwe-flange konke kuyasiza ekuvimbeleni ukuvuza ekuhlanganyeleni kwe-flange.
(2) Ukulungiswa kokuvuza ngaphakathi kwevalvu
Ukulungiswa kokuvuza kwangaphakathi ukususa umonakalo endaweni evalekayo kanye nokuvala okuxekethile empandeni (lapho indandatho yokuvala icindezelwa epuleti levalvu noma esihlalweni ngocu). Uma indawo yokuvala icutshungulwa ngokuqondile emzimbeni we-valve kanye nepuleti le-valve, ayikho inkinga yezimpande ezixekethile nokuvuza.
Lapho indawo yokuvala ilimele kakhulu, futhi indawo yokuvala yakhiwe ngendandatho yokuvala, indandatho endala kufanele ikhishwe futhi indandatho entsha yokuvala kufanele ifakwe; Uma indawo yokuvala yenziwe ngomshini ngokuqondile emzimbeni wevalvu, indawo yokuvala eyonakele kufanele isuswe kuqala, bese indandatho entsha yokuvala noma indawo ewumshini kufanele igaywe ibe indawo entsha yokuvala. Lapho imihuzuko, ama-bumps, ama-crush, ama-dents nezinye iziphambeko zendawo yokuvala zingaphansi kuka-0.05mm, zingaqedwa ngokugaya.
Lapho indandatho yophawu icindezelwa futhi igxilile, itheyiphu ye-PTFE noma upende owugqinsi omhlophe ungabekwa phansi kwesihlalo sevalvu noma umsele wendandatho yophawu, bese ucindezelwa ocingweni ukuze kugcwaliswe impande yendandatho yophawu; Uma isigxivizo sintambo, itheyiphu ye-PTFE noma upende omhlophe kufanele kubekwe phakathi kwemicu ukuvikela uketshezi ukuthi lungavuzi phakathi kwemicu.
(3) Ukulungiswa kwei-valveukugqwala
Ngokuvamile, umzimba we-valve kanye nebhonethi kugqwalile ngokufanayo, kuyilapho isiqu se-valve kuvame ukugotshwa. Lapho kulungiswa, imikhiqizo yokugqwala kufanele isuswe kuqala, futhi isiqu se-valve esinemigodi yokugoba kufanele sicutshungulwe ku-lathe ukuze kuqedwe ukucindezeleka, futhi esikhundleni sokupakisha okuqukethe i-ejenti ekhipha kancane kufanele kusetshenziswe, noma ukupakisha kufanele kuhlanzwe ngamanzi acwecwe ukuze kukhishwe ama-ion abangela ukugqwala kwesiqu se-valve ekupakisheni.
(4) Ukulungiswa komhuzuko endaweni evalekayo
Ekusetshenzisweni kwe-i-valve, indawo yokubeka uphawu kufanele ivinjwe ekuhutsheni ngangokunokwenzeka, futhi i-torque akufanele ibe nkulu kakhulu lapho i-valve ivaliwe. Uma indawo yokuvala i-abrasive, ingaqedwa ngokugaya.
Okwesine, ukutholwa kwamavalvu esango
Esimeni samanje semakethe kanye nezidingo zomsebenzisi, ama-valve esango lensimbi enza ingxenye enkulu. Njengomhloli wekhwalithi yomkhiqizo, ngaphezu kokujwayelana nokuhlolwa kwekhwalithi yomkhiqizo, kufanele futhi sibe nokuqonda okuhle komkhiqizo ngokwawo.
01. Isisekelo sokuhlola ama-valve esango lensimbi
Ukuhlolwa kwe-valve yesango lensimbi kusekelwe ku-GB/T12232-2005 ejwayelekile "General Valve Flange Connection Iron Gate Valve".
02. Izinto zokuhlola amavalvu esango lensimbi
Ikakhulukazi kufaka phakathi: uphawu, ukuqina kodonga oluncane, ukuhlolwa kwengcindezi, ukuhlolwa kwegobolondo, njll., lapho ubukhulu bodonga, ingcindezi, ukuhlolwa kwegobolondo kuyizinto ezidingekayo zokuhlola, kodwa futhi into eyinhloko, uma kunezinto ezingavumelani, zingahlulelwa ngokuqondile njengemikhiqizo engafaneleki.
Ngamafuphi, ukuhlolwa kwekhwalithi yomkhiqizo kuyingxenye ebalulekile yokuhlolwa komkhiqizo wonke, ukubaluleka kwawo kuyabonakala, njengabasebenzi abahlolayo, kufanele siqhubeke nokuqinisa ikhwalithi yabo, hhayi nje ukwenza umsebenzi omuhle ekuhloleni umkhiqizo, kodwa futhi sibe nokuqonda kokuhlolwa kwemikhiqizo, ukuze senze kangcono umsebenzi wokuhlola.
I-Tianjin Tanggu Water-Seal Valve Co., Ltdikakhulukazi ehlezi eqinileuvemvane valve,i-valve yesango,I-Y-strainer, i-valve yokulinganisa, i-valve yokuhlola, i-valve yokulinganisa, i-back flow preventer njll.
Isikhathi sokuthumela: Dec-26-2024
