Isingeniso se-Bellow Sealed valves

I-Bellow(ama) Seal(ed) Amavalvu

Ukuvuza ezindaweni ezihlukahlukene kumapayipi atholakala ezitshalweni zamakhemikhali kudala ukukhishwa kwegesi. Wonke amaphuzu anjalo okuvuza angatholwa kusetshenziswa izindlela namathuluzi ahlukahlukene futhi kufanele kuqashelwe unjiniyela wezitshalo. Amaphuzu abalulekile okuvuza ahlanganisa amajoyinti e-gasket ane-flanged kanye nokupakishwa kwe-Valve/pump gland, njll. Namuhla imboni yezinqubo zamakhemikhali izilungiselela ubuchwepheshe obuphephile ukuze kuvikelwe kangcono imvelo futhi isibe yisibopho sonjiniyela wonke wezinqubo ukuklama izitshalo ezikhawulela ukulimala kwemvelo ngokusebenzisa. ukuvimbela ukuvuza kwanoma yimaphi amakhemikhali anobuthi.

Ukuvuza kusuka ku-Valve gland noma ibhokisi lokugxushaimvamisa iwukukhathazeka ngokulungisa noma unjiniyela wezitshalo. Lokhu kuvuza kusho:
a) Ukulahleka kwempahla b) Ukungcoliswa komkhathi c) Kuyingozi kubasebenzi bemishini.

Isibonelo, thatha icala lokuvuza kwesitimu nge-Valve gland. Ku-150 PSI, imvume engu-0.001″ nje ngendlala izosho ukuvuza ngesilinganiso esingu-25 lb/ihora. Lokhu kulingana nokulahlekelwa okungu-USD 1.2 ngeshifu yamahora ayisishiyagalombili, noma i-USD 1,100 ngonyaka. Ngokufanayo, ukwehla okuncane okungu-0.4 mm ububanzi ngomzuzwana kubangela ukumosha cishe amalitha angu-200 ngonyaka kawoyela obizayo noma isincibilikisi. Lokhu kuvuza kungancishiswa kakhulu ngokusebenzisa i-Bellow seal Valve. Lesi sihloko manje sizocubungula ukwakhiwa nokusebenza kwe-bellow seal.

Ukwakhiwa kweBellow

I-cartridge ebomvu ishiselwe kukho kokubili i-Valve Bonnet kanye nesiqu se-Valve. I-cartridge engezansi inenani lokuguquguquka futhi lawa ma-convolutions ayacindezelwa noma anwetshwe kuye ngokunyakaza kwesiqu se-Valve. (Ngokwesayensi ukubhonsa kuyacindezelwa lapho iValve isendaweni evulekile futhi inwetshwa lapho iValve isesimweni esivaliwe). Kubalulekile ukufaka kahle imizimba ye-Valve. I-bellow ingavalwa kuma-Valves ngezindlela ezimbili ezihlukene. Okokuqala, insimbi ingashiselwa esiqwini seValve phezulu kanye nomzimba weValve phansi. Kulokhu uketshezi lwenqubo luqukethwe ngaphakathi kwe-bellow noma ngendlela yesibili i-bellow ishiselwe esiqwini seValve phansi kanye nomzimba phezulu. Kulokhu uketshezi lwenqubo luqukethwe endaweni eyi-annular phakathi kwe-Valve Bonnet kanye ne-bellow (kusuka ngaphandle).

I-bellow iyingxenye ebalulekile futhi yakha inhliziyo yama-Valves e-bellow seal. Ukuze ugweme noma yikuphi ukusonteka kwe-bellow Ivalvu kufanele ibe nesiqu esinyakazayo ngomugqa kuphela. Lokhu kungafezwa ngokusebenzisa okuthiwa i-sleeve-nut engxenyeni yeJoka yeBhonethi yeValve. Isondo lesandla lifakwe ku-sleeve-nut elidlulisela ngempumelelo ukunyakaza kwesondo lesandla libe ukunyakaza okulayini esiqwini seValve.

Izinhlobo ezingezansi

Kunezinhlobo ezimbili eziyinhloko ze-bellow: I-Forged Bellow kanye ne-Welded Bellow. Izifutho zohlobo olwakhiwe zenziwe ngokugoqa ishidi eliyisicaba (ucwecwe oluncane olusodongeni) lube yishubhu elibe selihlanganiswa ngobude. Leli shubhu ngokulandelayo lenziwa ngomshini noma nge-hydrostatically libe isivunguvungu esinamagoqe ayindilinga futhi ahlukaniswe kabanzi. Ibhonga leqabunga elishiselwe lenziwa ngokushisela amapuleti afana newashi ensimbi ezacile ndawonye kuwo womabili indilinga yangaphakathi nangaphandle yamawasha - njengamapuleti. Iqabunga leqabunga elishiselwe linokugoqeka okwengeziwe ngobude beyunithi ngayinye uma kuqhathaniswa nezifutho ezifojiwe. Ngakho-ke, ngobude obufanayo be-stroke, izifutho ezifojiwe zinde ngokuphindwe kabili kuya kwezintathu kunozakwabo wamaqabunga ashiselwe.

Kubikwa ukuthi izivunguvungu ezenziwe ngomshini zihluleka noma nini, kuyilapho iqabunga elishiselwe ngokuvamile lihluleka noma eduze nendawo yokushisela. Ukuqinisekisa ukungena okugcwele kwemikhawulo engezansi kanye nokuphela kwe-coller welding kuhle ukwenza usebenzisa i-micro plasma welding.

Bellow design

Idizayini ene-multi-ply bellow ikhethwa ukuphatha uketshezi olunomfutho ophakeme (ngokuvamile ama-plies amabili noma amathathu odonga lwensimbi). I-ply bellow embili ingakhuphula isilinganiso sayo sokucindezela ngo-80% kuya ku-100% uma kuqhathaniswa nokubhonsa okukodwa kogqinsi olufanayo. Okunye, uma kusetshenziswa i-ply eyodwa yogqinsi olulingana nesilinganiso sokucindezela kwe-ply bellow ezimbili, ubude be-stroke buyancishiswa. Ngakho-ke, idizayini ye-multi-ply bellow inikeza inzuzo ehlukile phezu kwe-ply bellow eyodwa. Kuyacaca ukuthi i-bellow ingaphansi kokukhathala kwensimbi futhi lokhu kukhathala kungabangela ukwehluleka kwe-weld. Impilo yokukhathala ithintwa into yokwakha, indlela yokwenziwa, ubude be-stroke kanye nemvamisa yokushaywa unhlangothi, ngaphezu kwemingcele evamile efana nezinga lokushisa loketshezi nokucindezela.

Izinto ezingezansi

Insimbi engagqwali ebhonge kakhulu edume kakhulu i-AISI 316Ti equkethe i-Titanium ukumelana namazinga okushisa aphezulu. Kungenjalo, i-Inconel 600 noma i-Inconel 625 ithuthukisa amandla okukhathala nokumelana nokugqwala uma kuqhathaniswa nokuvuthela kwensimbi engagqwali. Ngokufanayo, i-Hastalloy C-276 inikeza ukumelana nokugqwala okukhulu namandla okukhathala kune-Inconel 625. Ukumelana nokukhathala kungathuthukiswa ngokusebenzisa uhlelo lwe-multiply bellows nokunciphisa ubude be-stroke; lokhu kungakhuphula kakhulu impilo yesevisi engezansi.

Izinketho ze-valve

Izinhlobo zeValve ezivame kakhulu ezizofakwa izigxivizo ezicwebezelayo imiklamo yesango nembulunga (bheka Umfanekiso 1). Lezi zifaneleka kakhulu ukusetshenziswa nezivunguvungu ngenxa yokwakhiwa kwazo kwangaphakathi kanye nokunyakaza kwe-axial kwesiqu se-Valve.
Ngokusekelwe olwazini olutholakalayo, kubonakala sengathi amaValuvu ophawu lwamanje acwebile ahluka ngosayizi ukusuka ku-3 mm NB ukuya ku-650 mm NB. Izilinganiso zokucindezela ziyatholakala kusukela ku-ANSI 150# kuya ku-2500#. Izinketho zezinto ezibonakalayo zama-Valves zihlanganisa i-carbon steel, insimbi engagqwali nama-alloys angavamile.

Izinhlelo zokusebenza

Imidiya Yokudlulisa Ukushisa: uwoyela oshisayo uvame ukusetshenziswa ezimbonini ezinjengemicu yokwenziwa / i-POY (Intambo Egxile Ngokwengxenye). Nokho, kuhlale kunengozi yomlilo ngenxa yokuchitheka kukawoyela oshisayo kumakhemikhali avutha kakhulu. Lapha, ama-valve e-bellow seal angamisa ukuvuza.

Vacuum / vacuum ephezulu kakhulu: ezinye izinhlelo zokusebenza zidinga iphampu yevacuum ukuze iqhubeke ikhipha umoya epayipini. Noma yimaphi amaValuvu avamile afakwe epayipini angavumela umoya wangaphandle ukuba ungene epayipini ngokucophelela ibhokisi lokugxusha leValve. Ngakho-ke i-Bellow seal Valve iwukuphela kwekhambi lokuvimbela umoya ukuthi ungadluli ebhokisini lokugxusha.
Uketshezi oluyingozi kakhulu: emithonjeni yezindaba efana ne-chlorine (bheka uMdwebo 2), i-hydrogen, i-ammonia ne-phosgene, i-Bellow seal Valve iwumklamo okahle njengoba ukuvuza ngendlala kuqedwa ngokuphelele.
Isitshalo senuzi, isitshalo samanzi asindayo: ezimweni lapho ukuvuza kwemisebe kufanele kuvinjwe ngaso sonke isikhathi, i-bellow seal Valve iyisinqumo esiphezulu.
Uketshezi olubizayo: kwezinye izinhlelo zokusebenza ukuvuza kudingeka kugwenywe ngenxa nje yezindleko eziphezulu zoketshezi. Lapha, ukuhlolwa komnotho kuvame ukuthanda ukusetshenziswa kwamaValves e-bellow seal.
Izindinganiso zemvelo: emhlabeni wonke, izindinganiso eziphathelene nekhabhoni kanye nendawo ezungezile ziba namandla kakhulu usuku nosuku. Ngakho-ke kungaba nzima ukuthi izinkampani zande ngaphakathi kwezakhiwo ezikhona. Ngokusetshenziswa kwe-bellow seal Valves, ukunwetshwa ngaphandle kwemvelo eyengeziwe
kungenzeka umonakalo.