Amavalvu wesangokunyeamavalvu wevithaminizisetjenziswa njengamaswitshi ukulawula izinga lokugeleza ekusetjenzisweni kwepayipi. Kuliqiniso, kusese neendlela zokukhetha amavalvu we-butterfly namavalvu wesango.
Kunethiwekhi yamapayipi wokuphakelwa kwamanzi, ukwenzela bona kwehliswe ukujula kwepayipi lokuvala ihlabathi, ububanzi obujayelekileko bepayipi elikhulu bufakwe i-butterfly valve, begodu nangabe ukujula kwe-soil coverage akukaqakatheki, zama ukukhetha i-valve yesango, kodwana intengo ye-gate valve ye-specification efanako iphezulu kunentengo ye-butterfly valve. Malungana nomkhawulo wezinga, indawo ngayinye kufanele iqalwe ngokwesimo ngasinye. Ngokuya ngokusetjenziswa kweminyaka elitjhumi edlulileko, ukubhalelwa kwevalvu ye-butterfly kuphezulu kunaleyoivalvu yesango, njeke kufanele ukutjheja ukwandisa ububanzi bokusetjenziswa kwevalvu yesango nangabe ubujamo buvuma.
Eminyakeni esanda kwedlula, abakhiqizi abanengi bamavalvu bekhaya bathuthukise begodu balingisa amavalvu wesango elithambileko, aneemfanelo ezilandelako ukudlula amavalvu we-wedge wesintu nofana ama-parallel double gate:
Iivalvuumzimba nebhonethi yevalvu yesango lokuvala elithambileko ziphoswa ngendlela yokuphosa ngokunembileko, eyakhiwe ngesikhathi esisodwa, ngokuyisisekelo ingasetjenziswa ngomtjhini, begodu ayisebenzisi amasongo wekhopha wokuvala, okulondoloza iinsimbi ezingezizo zensimbi.
Akunamgodi ngaphasi kweivalvu yesango elithambileko, akukho ukubuthelela kwe-slag, kanye nezinga lokubhalelwa kwe-ivalvu yesangoukuvula nokuvala kuphansi.
Ipleyidi yevalvu enesivalo esithambileko ifana ngobukhulu begodu iyatjhuguluka khulu.
Ngalokho-ke, i-soft seal gate valve izokuba yindlela ibubulo lokuphakelwa kwamanzi elithabela ukulithatha. Njenganje, ububanzi be-soft seal gate valve eyenziwe e-China buyi-1500mm, kodwana ububanzi babakhiqizi abanengi buphakathi kwama-80-300mm, begodu kusese nemiraro eminengi emsebenzini wokukhiqiza wangekhaya. Ingcenye eqakathekileko ye-soft seal gate valve yipuleti le-valve elilayiniwe ngerabha, begodu iimfuneko zethekhnikhi zepuleti le-valve elilayiniwe ngerabha ziphezulu, begodu akusibo boke abakhiqizi bangaphandle abangakwenza lokho, begodu kanengi ithengwa begodu ihlanganiswe efemini ngekhwalithi ethembekileko.
Ibhlogo ye-nut yekhopha yesivalo esithambileko sasekhayaivalvu yesangoifakwe begodu ilengiswe ngaphezulu kwepuleti yevalvu yerabha, efana nesakhiwo sevalvu yesango, begodu irabha yepuleti yevalvu kulula ukuyikhupha ngebanga lokutjhayisana okusebenzako kwebhlogo le-nut. Nge-soft seal gate valve yenkampani yangeqadi, ibhlogo le-copper nut ifakwe ngaphakathi kwe-rabha-lineline inram ukwakha okupheleleko, okunqoba ukutlhayela okungenhla, kodwana ukugxila kokuhlanganiswa kwesembozo sevalvu nomzimba wevalvu kuphezulu.
Kodwana, lokha nawuvula begodu uvala ivalvu yesango lokuvala elithambileko, akukafaneli ivalwe khulu, inqobo nje nangabe umphumela wokumisa amanzi ufinyelelwa, ngaphandle kwalokho akusibulula ukuvula nofana ukuhluza irabha. Umkhiqizi wamavalvu, ekuhlolweni kwengcindezi yevalvu, ukusetjenziswa kwe-torque wrench ukulawula izinga lokuvala, njengekhamphani yamanzi abasebenzisi bevalvu kufanele balandele indlela yokuvula nokuvala.
Uyini umehluko phakathi kokusetjenziswa kweamavalvu wevithaminikunyeamavalvu wesango?
Ngokuya ngomsebenzi nokusetjenziswa kwevalvu yesango nevalvu ye-butterfly, ukujamelana nokugeleza kwevalvu yesango kuncani, ukusebenza kokuvala kuhle, ngombana indlela yokugeleza kwepuleti yevalvu yesango kanye nomphakathi kuyi-engeli ejame ngqo, nangabe ivalvu yesango ayikho endaweni ye-valve plate switch, i-medium ehlanza ipuleti yevalvu yenza ipuleti yevalvu ithuthumele, begodu isango ilimale isivalo sevalvu.
Ivalvu ye-butterfly, eyaziwa nangokuthi yi-flap valve, yisakhiwo esilula se-valve yokulawula, engasetjenziselwa ukulawula ukuvula/ukuvala kwephayiphi ye-low-pressure i-valve ye-butterfly valve ephakathi itjho ingcenye yokuvala (idiski nofana ipuleti ye-butterfly) njengediski, ejikeleza i-valve shaft ukufikelela ukuvulwa nokuvalwa komhlobo wevalvu, ingasetjenziselwa ukulawula ukugeleza kwevalvu yezinto ezisamanzi ezifana nomoya, amanzi, umtjhiso, iindaba ezihlukahlukeneko ezibolako, udaka, amafutha, insimbi emanzini kanye nezinto ezikhiqiza imisebe. Ikakhulukazi idlala indima yokusika nokugandelela epayipini. Ingcenye yokuvula nokuvala ivalvu ye-butterfly yipuleti ye-butterfly emise okwediski, ejikeleza i-eksisi yayo emzimbeni we-valve, ukwenzela bona ifinyelele umnqopho wokuvula nokuvala nofana ukulungisa.
Ipuleti yevithamini iqhutshwa siqu sevalvu, begodu nayijika ibe yi-90°, ingaqeda ukuvula nokuvala. Ngokutjhugulula i-engele yokuphambuka kwevivane, izinga lokugeleza kwendawo lingalawulwa.
Ubujamo bokusebenza nendlela:Ivalvu ye-butterflyilungele ukuthutha amapayipi ahlukahlukeneko wemidiya ye-fluid ebolako nengaboliko eenhlelweni zobunjiniyela ezifana nama-furnace, irhasi yamalahle, irhasi yemvelo, irhasi yephethroliyamu, irhasi yedorobha, umoya otjhisako nobandako, ukuncibilikisa ngamakhemikhali nokuvikelwa kwebhoduluko kwamandla, ukuphakelwa kwamanzi wezakhiwo nokukhipha amanzi, njll., begodu isetjenziselwa ukulawula nokuvala ukugeleza kwemidiya.
Ivalvu yesango (ivalvu yesango) yingcenye evulako nevalako yesango, indlela yokunyakaza kwesango iqondile endleleni yoketshezi, ivalvu yesango ingavulwa begodu ivalwe ngokupheleleko kwaphela, ukungakhululeki kwamapharamitha womnyango kuhlukile, kanengi 5°, lokha amazinga womtjhiso aphakathi angasi phezulu, kuba 2°5′2′. Ukwenza ngcono ukukhiqizwa kwayo nokwenza ukuphambuka kwe-engele yokuvala indawo emsebenzini, umhlobo lo we-ram ubizwa ngokuthi yi-elastic ram.
Lokhaivalvu yesangoivaliwe, indawo yokuvala ingathembela kwaphela emfuthweni ophakathi ukuvala, okutjho bona, ithembele kwaphela emfuthweni ophakathi ukugandelela indawo yokuvala ye-ram ukuya esihlalweni sevalvu ngakelinye ihlangothi ukuqinisekisa ukuvalwa kwendawo yokuvala, okuzivala ngokwakho. Inengi lamavalvu wesango avalwa ngamandla, okutjho bona, lokha ivalvu nayivaliweko, i-ram kufanele igandelelwe ngamandla esihlalweni sevalvu ngamandla wangaphandle ukuqinisekisa ukuqina kwendawo yokuvala.
Indlela yokunyakaza: Ipuleti lesango levalvu yesango lihamba emgqeni oqondileko nesiqu sevalvu, esibizwa nangokuthi yivalvu yesango lesigodo esivulekileko. Ngokuvamileko kuba nentambo ye-trapezoidal ensingeni yokuphakamisa, ngokusebenzisa i-nut ephezulu kwevalvu kanye ne-guide groove emzimbeni wevalvu, ukunyakaza okujikelezako kutjhugululwa kube kukunyakaza okuqondileko, okutjho bona, i-torque yokusebenza itjhugululwa ibe yi-operating thrust. Lokha i-valve nayivulwa, lokha ukuphakama kwe-ram kulingana no-1:1 ububanzi be-valve, ukugeleza kwe-fluid akuvinjelwa ngokupheleleko, kodwana ubujamo lobu angeze bubekwe ilihlo ngesikhathi sokusebenza. Ekusetjenzisweni kwamambala, iphawulwa yi-vertex yesiqu, okutjho bona, indawo engeze yavulwa, njengendawo yayo evulekileko. Ukurarulula ukutjhuguluka kwezinga lokutjhisa, kuvamise ukuvulwa endaweni ephezulu, bese ibuyela emuva ku-1/2-1 ukujika njengendawo yevalvu evulekileko. Ngalokho-ke, ukuvuleka okupheleleko kwevalvu kunqunywa yindawo ye-ram (okutjho ukutjhwaba). Enye i-nut yesiqu sevalvu yesango itholakala esangweni, begodu isondo lesandla liyajikeleza ukuqhuba isiqu sevalvu bona sijikeleze, begodu ipuleti lesango liyaphakanyiswa, ivalvu le ibizwa ngokuthi yivalvu yesango lesigodo esijikelezako nofana ivalvu yesango lesigodo esimnyama.
Isikhathi sokuposa: Aug-22-2024
