Kusvika ikozvino, cryogenic application mamiriro anoda maviri-nzira vharafu chisimbiso akanyanya kushandisa mhando mbiri dzevharuvhu, dzinoti globe mavharuvhu uye yakatarwa bhora mavharuvhu / pamusoro akaiswa akagadzika bhora mavharuvhu.Nekudaro, nekubudirira kwakabudirira kweiyo nzira mbiri cryogenic ball valve, vagadziri vehurongwa vakawana sarudzo inoyevedza kupfuura yechinyakare bhora mavharuvhu-.mavharuvhu ebhora anoyangarara.Iyo ine mwero wepamusoro wekuyerera, haina chinorambidzwa painoyerera nzira uye yekuisa chisimbiso nzira yepakati, uye inogona kushanda zvakachengeteka mumamiriro ecryogenic.Uye saizi idiki, uremu hwakareruka, uye chimiro chiri nyore.
Cryogenic application scenarios inoda mavharuvhu anosanganisira kupinza/kubuda kwematangi ekuchengetera kuzadza nekuburitsa, kudzvanya mapaipi akavharika asina chinhu, gasification uye liquefaction, mapaipi ezvinangwa zvakasiyana siyana muLNG terminal station, masisitimu ekutumira, uye matangi, Distribution system, kupomba. zviteshi uye LNG zviteshi zvekuzadza mafuta, pamwe nemagasi egasi mavharuvhu seti (GVUs) ane chekuita neaviri-mafuta enjini mungarava.
Mumamiriro ezvinhu ataurwa pamusoro apa, mavharuvhu anovhara-maviri anowanzo shandiswa kudzora uye kuvhara mvura yepakati.Zvichienzaniswa nemamwe marudzi akadai sebhora mavharuvhu, vane matambudziko akawanda:
Iyo inoyerera coefficient (Cv) yakadzikira-izvi zvinokanganisa kusarudzwa kwese kwakakodzera pombi saizi uye inove inogona kuita bhodhoro inodzikamisa kuyerera kwehurongwa.
· Inoda kugadzirisa linear actuators kuti iite yekuvhara uye kutonga mabasa-inofananidzwa nerectangular rotary actuators inoshandiswa kudzora nekushanda mavharuvhu ebhora nemamwe mavharuvhu anotenderera ane rectangular, iyi mhando yemidziyo ine chimiro chakaoma uye inodhura.Mutengo uye kuomarara kwechimiro cheseti yakakwana yevharuvhu uye actuator midziyo yakakurumbira.
· Kana iyo yekuvhara-vharuvhu yakashandiswa kuona iyo emergency shutdown basa inodiwa neakawanda LNG masisitimu, kuoma kunenge kwakakwira.
Pazvivakwa zvidiki zveLNG (SSLNG), matambudziko ari pamusoro achave akajeka, nekuti masisitimu aya anofanirwa kunge ari madiki, anodhura zvakanyanya, uye ane hukuru hwekuyerera huwandu kuitira kupfupisa kurodha nekuburitsa.
Iyo inoyerera coefficient yevhavha yebhora yakakwira kupfuura iyo yeglobe valve yehukuru hwakafanana.Mune mamwe mazwi, iwo madiki muhukuru pasina kukanganisa mwero wekuyerera.Izvi zvinoreva kuti saizi, uremu uye mutengo weiyo yese pombi system uye kunyangwe iyo yese system yakaderedzwa zvakanyanya.Panguva imwecheteyo, inogona kuwedzera zvakanyanya kudzoka kwekudyara (ROI) yeanoenderana masisitimu.
Ehe, standard cryogenic float ball valves inzira imwe chete, iyo isingakodzeri mamiriro ataurwa pamusoro apa anoda maviri-nzira kuvhara vharafu.
One-way Vs Two-nzira
Sezvinoratidzwa muMufananidzo 1, iyo yakajairwa bhora inoyangarara yevharuvhu yemamiriro e cryogenic ine buri rekumanikidza kudivi rekumusoro kwebhora revharuvhu kudzivirira kumanikidza kuunganidza uye kusimuka kana yepakati ichipinda shanduko yechikamu.Kana vharafu iri munzvimbo yakavharwa, gasi rakanyungudutswa rakavharirwa mugomba remuviri wevhavha rinotanga kubuda uye kuwedzera, uye vhoriyamu inogona kusvika ka600 nguva yevhoriyamu yepakutanga mushure mekuwedzera zvizere, izvo zvinogona kukonzera kuputika kwevhavha. .Kuti udzivise mamiriro ezvinhu aya, mavharuvhu mazhinji ebhora anoyangarara akatora yakakwira yekuvhurika yekuyamura nzira.Nekuda kweizvi, echinyakare bhora mavharuvhu haagone kushandiswa mumamiriro ezvinhu anoda maviri-nzira chisimbiso.
Uye iyi ndiyo nhanho iyo nzira mbiri cryogenic float ball valve inogona kuratidza matarenda ayo.Musiyano uripo pakati pevharuvhu iyi uye yakajairwa imwe-nzira cryogenic valve ndeye:
· Hapana kuvhurika pabhora revharuvhu kudzikisa kudzvanywa
· Inogona kunama mvura mumativi ese
· Hapana kuvhurika pabhora revharuvhu kudzikisa kudzvanywa
· Inogona kunama mvura mumativi ese
Munzira mbiri cryogenic float ball valve, chigaro chevharuvhu chine nzira mbiri-chakaremerwa chinotsiva nzira yekuyamura yekuyamura yekuvhurika.Chitubu-chakaremerwa chigaro chevharuvhu chinogona kuburitsa yakawandisa kudzvanywa inogadzirwa ne liquefied yakasikwa gasi yakavharirwa mugomba remuviri wevharuvhu, nekudaro ichidzivirira vharafu kubva pakuputika, sezvakaratidzwa mumufananidzo 2.
Uye zvakare, iyo chitubu-yakarodha chigaro chevharuvhu chinobatsira kuchengetedza vharafu pane yakaderera torque uye kuwana yakapfava kushanda mumamiriro ecryogenic.
Iyo miviri-yenzira mbiri cryogenic float ball valve yakashongedzerwa neyechipiri-nhanho graphite sealing mhete, kuitira kuti vharafu ive nebasa rekuchengetedza moto.Kunze kwekunge tsaona ine njodzi yakonzera kuti zvikamu zvepolymer zvevharuvhu zvipise, chisimbiso chechipiri hachizosangana nepakati.Pakaitika njodzi, chisimbiso chechipiri chechipiri chichazadzisa basa rekudzivirira moto.
Zvakanakira nzira mbiri mavharuvhu
Kuenzaniswa nemavharuvhu eglobe, akagadzika uye akakwira-akagadzika bhora mavharuvhu, nzira mbiri cryogenic float ball valve ine zvese zvakanakira yeyakakwira coefficient ball valve, uye hapana chinorambidzwa pamvura uye chisimbiso nzira.Inogona kushandiswa zvakachengeteka mumamiriro e cryogenic;saizi idiki uye chimiro chiri nyore.Iyo yekufananidza actuator zvakare iri nyore (kurudyi-kona kutenderera) uye miniaturized.Aya mabhenefiti anoreva kuti iyo system yese idiki, yakareruka, uye yakawanda-inoshanda.
Kuenzaniswa nemavharuvhu eglobe, akagadzika uye akakwira-akagadzika bhora mavharuvhu, nzira mbiri cryogenic float ball valve ine zvese zvakanakira yeyakakwira coefficient ball valve, uye hapana chinorambidzwa pamvura uye chisimbiso nzira.Inogona kushandiswa zvakachengeteka mumamiriro e cryogenic;saizi idiki uye chimiro chiri nyore.Iyo yekufananidza actuator zvakare iri nyore (kurudyi-kona kutenderera) uye miniaturized.Aya mabhenefiti anoreva kuti iyo system yese idiki, yakareruka, uye yakawanda-inoshanda.
Tafura 1 inofananidza nzira mbiri-cryogenic inoyangarara bhora vharafu nemamwe mavharuvhu ane mabasa akafanana kubva pamaonero ekuchengetedza, saizi, uremu, torque level, kuomerwa kwekudzora, uye mutengo wakazara, uye inopfupisa zvakakwana zvayakanakira nezvayakaipira.
Kana nzvimbo duku yeLNG ikaputsa gungano uye inotora nzira mbiri-cryogenic ball valve, inogona kupa kutamba kwakazara kune zvakasiyana-siyana zvevhavhavha yebhora, kureva, yakazara dhayamita, kuyerera kwepamusoro uye kukwirira kwepombi yekubuda.Zvichireva kutaura, inogona kutsigira madiki mapaipi uku ichichengeta mwero wekuyerera wakafanana, saka inogona kuderedza huwandu hwese, huremu, uye kuoma kwehurongwa, uye inogona zvakare kuderedza mutengo wepombi system.
Chinyorwa chakapfuura chakaunza zvakanakira kushandiswa sevhavha yekuvhara.Kana yakashandiswa sevhavhavha yekudzora, zvakanakira zvichava pachena.Kana iyo yekurudyi-angle rotary ball valve inoshandiswa, iyo yakaoma yevhavha automation kit ichaderedzwa zvakanyanya, saka yave chinhu chakasarudzika cheiyo cryogenic system.
Izvo zvinonyanya kukosha zveiyo yataurwa pamusoro otomatiki kit ndiyo yakapfava uye inoshanda nzira mbiri cryogenic float bhora vharafu, uye rectangular rotary actuator ine chimiro chakareruka uye yakanyanya kudhura.
Muchidimbu, nzira mbiri dze cryogenic float ball valve ine "kupidigura" kukosha kwakanaka kune cryogenic pipeline system.Muzvivakwa zvidiki zveLNG, inogona kupa kutamba kwakazara kune zvayakanakira.
Mumakore mashomanana adarika, chigadzirwa chitsva ichi chakasimbiswa mukushanda kwekushanda, zvichiratidza kuti zvakakosha zvakakosha pamutengo wepurojekiti uye kushanda kwenguva refu kwakavimbika kwehurongwa.
Nguva yekutumira: Jun-17-2021