4 mabhora tightness
Chinhu chinonyanya kukosha chekuisa chisimbiso chechigarobhora mavharuvhuis polytetraoxyethylene (PTFE), iyo inonzwa kune angangoita ese emakemikari zvinhu, uye ine yakaderera friction coefficient, yakatsiga kuita, isiri nyore kuchembera, yakakura tembiricha application renji uye yekuisa chisimbiso Hunhu hwakanakisa hwakakwana.Zvisinei, zvinhu zvemuviri zvePTFE, kusanganisira kuwedzera kwepamusoro coefficient, sensitivity kune kutonhora kuyerera uye kusina kunaka kwekushisa kwekushisa, kunoda kugadzirwa kwevhavha yezvigaro zvisimbiso kuti zvitarise pane izvi.Iyo yepurasitiki zvinhu zvechisimbiso chechigaro chevhavha inosanganisirawo yakazadzwa PTFE, naironi uye zvimwe zvinhu zvakawanda.Nekudaro, kana iyo yekuisa chisimbiso ikava yakaoma, kuvimbika kwechisimbiso kuchave nekukuvadzwa, kunyanya kana yakaderera kudzvinyirira musiyano.Pamusoro pezvo, rabha rekugadzira senge butyl rabha rinogona zvakare kushandiswa sevhavha chigaro chekuvhara zvinhu, asi inoshanda yepakati uye tembiricha yemhando yemishonga inogumira.Mukuwedzera, kana iyo yepakati isina mafuta, kushandiswa kwerabha yekugadzira kungangoita jam bhora.
Kuti usangane nezvinodiwa zvekushandiswa kwemaindasitiri akadai sekushisa kwakanyanya, kudzvanywa kwepamusoro, kukukurwa kwakasimba, hupenyu hurefu, nezvimwewo, mavharuvhu akavharwa nesimbi akagadzirwa zvakanyanya mumakore gumi apfuura.Kunyanya munyika dzakabudirira dzemaindasitiri, dzakadai seUnited States, Italy, Germany, Spain, Netherlands, nezvimwewo, chimiro chevharuvhu yebhora chave chichivandudzwa nguva dzose, uye kwave kune ese-welded muviri wakananga-akavigwa mavharuvhu ebhora, achisimudza. bhora mavharuvhu, uye bhora mavharuvhu ari kure-kure mapaipi, oiri yokunatsa midziyo, etc. The indasitiri munda rinonyanya kushandiswa, pamwe hombe dhayamita (3050mm), high pressure (70MPa) uye yakafara tembiricha siyana (-196~8159C) bhora mavharuvhu achionekwa, kuitira kuti tekinoroji yevharuvhu yebhora yasvika padanho idzva.
5 Bhora vharafu dhizaini uye kugadzira
Nekuda kwekushandiswa kweComputer Aided Design (CAD), Computer Aided Manufacturing (CAM) uye Mulberry Manufacturing System (FMS) muindasitiri yevharuvhu, magadzirirwo nekugadzirwa kwemavharuvhu ebhora asvika padanho idzva.Haisi kungove yakanyatso gadzira nzira yekuverenga yevhavhavha, asi zvakare yakadzora inorema uye inodzokorodza dhizaini dhizaini yevashandi vehunyanzvi uye tekinoroji, kuitira kuti matekinoroji ave nesimba rakawanda rekuvandudza, kuvandudza mashandiro echigadzirwa nekuvandudzwa kwechigadzirwa, uye kupfupisa tsvakiridzo uye kuvandudza kutenderera kwezvigadzirwa zvitsva., Kuvandudza kubereka kwevashandi nenzira yakapoteredza, uye mukutsvaga nekuvandudzwa kwekusimudza tsvimbo yesimbi yekuvhara bhora valve, nekuda kwekushandiswa kweCAD/CAM, tsvimbo yakafara spiral flat yakagadzirwa nekombiyuta-inobatsira dhizaini uye komputa. -yaibatsira CNC muchina midziyo yakaonekwa, inova chisimbiso chesimbi.Ivhavha yebhora haina zvikwambo uye inopfeka panguva yekuvhura nekuvhara, kuitira kuti basa rekuisa chisimbiso uye hupenyu hwebasa revhavha yebhora rinovandudzwa zvikuru.Kana vharafu yebhora yanyatsovhurwa, kuyerera kwemvura kudiki kwazvo, kunenge kuenzana ne zero, saka iyo yakaenzana dhayamita yebhora valve inoshandiswa zvakanyanya mumafuta uye gasi pombi nekuti zviri nyore kuchenesa pombi.Nekuti bhora revhavhavhavha inopukutwa panguva yekuvhura nekuvhara maitiro, mavharuvhu mazhinji ebhora anogona kushandiswa munhau ane akaturikwa akasimba particles.Zvichienderana nechinhu chemhete yekuisa chisimbiso, inogona zvakare kushandiswa muupfu uye granular media.
6 Ball valve inoshanda nguva
Sezvo vharafu yebhora ichiwanzoshandisa rabha, naironi uye polytetraoxyethylene sechigaro chekuisa chisimbiso chemhete, tembiricha yekushandiswa kwayo inogumira nevharuvhu yekuisa chisimbiso mhete zvinhu.Iyo yekucheka-kubvisa mhedzisiro yehupamhi hwebhora inowanikwa nesimbi yesimbi inotsikirirwa pakati pezvigaro zvepurasitiki zvevharuvhu pasi pekuita kwepakati (inoyangarara bhora vharafu).Pasi pechiito cheimwe dzvinyiriro yekubata, chigaro chevharuvhu chekuisa chisimbiso chemhete chinokanganisa elastically uye plastiki mune dzimwe nzvimbo.Iyi deformation inogona kubhadhara kurongeka kwekugadzira uye kushata kwepamusoro kwebhora, uye kuve nechokwadi chekuisa chisimbiso chevhavha yebhora.
Mukuwedzera, sezvo chisimbiso chechigaro chevhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhadziswa, pakusarudza chimiro nekushanda kwevhavha yebhora, zvakakosha kufunga nezvekudzivirira moto uye kupikisa moto kwevhavha yebhora, kunyanya mupetroleum. kemikari, metallurgical uye mamwe masangano, mumhepo inopisa uye inoputika Kushandiswa kwemavharuvhu ebhora mumidziyo uye pombi system yeUnited States inofanira kubhadhara zvakanyanya kupikisa moto nekudzivirira moto.
Kazhinji, mukugadzirisa-nzvimbo mbiri, kunyatsoisa chisimbiso kushanda, madhaka, abrasion, necking chiteshi, kukurumidza kuvhura nekuvhara chiito (1/4 kutendeuka kuvhura nekuvhara), kudzvanywa kwepamusoro-kubviswa (kuremerwa kwakasiyana), ruzha rushoma, cavitation uye vaporization, Mumapombi masisitimu ane huwandu hudiki hwekudonha kumhepo, diki yekushandisa torque uye diki fluid kuramba, bhora mavharuvhu anokurudzirwa.
Mavharuvhu ebhora akakodzerawo kune masisitimu epombi ane mwenje chimiro, yakaderera kudzvinyirirwa kucheka-kure (diki kudzvanywa musiyano), uye corrosive media.
Bhora mavharuvhu anogonawo kushandiswa yakaderera tembiricha (cryogenic) midziyo uye pombi masisitimu.
Mune iyookisijeni pombi system yeindasitiri yemetallurgical, mavharuvhu ebhora akave akanyatso dhiza kurapwa anodiwa.
Kana mitsetse mikuru mumapombi emafuta negasi inoda kuvigwa pasi pevhu, mavharuvhu ebhora akazara-dhayamita anodiwa.
Kana kugadzirisa kushanda kunodiwa, valve yebhora ine chimiro chakakosha chine V-shaped opener inofanira kusarudzwa.
Mu petroleum, petrochemical, kemikari, simba remagetsi, uye kuvaka kwemadhorobha, simbi-to-metal yakavharwa bhora mavharuvhu anogona kushandiswa pombi masisitimu ane tembiricha yekushandisa inopfuura 200 ° C.
7 Nheyo dzekushandiswa kwemavharuvhu ebhora
Kumafuta negasi pombi, mapaipi anoda kucheneswa, uye kuvigwa muvhu, shandisa zvose-pass uye zvose-welded bhora mavharuvhu;yekuvigwa muvhu, sarudza ese-pass welded kana flanged bhora mavharuvhu;mapaipi ebazi , Sarudza flange yekubatanidza, welding yekubatanidza, yakazara-pass kana kuderedzwa dhayamita bhora vharafu.
Kune pombi yekufambisa uye midziyo yekuchengetedza yemafuta akacheneswa, shandisa flanged bhora mavharuvhu.
Kune gasi remuguta nemapaipi egasi chaiwo, shandisa mavharuvhu ebhora anoyangarara ane chinongedzo cheflange uye yemukati tambo yekubatanidza.
Mune iyookisijeni pombi system mumetallurgical system, yakagadziriswa bhora vharafu yakave yakanyatso dhiza kurapwa uye flanged yekubatanidza inofanira kushandiswa.
Kune yakaderera-tembiricha pombi masisitimu uye zvishandiso, yakaderera-tembiricha bhora mavharuvhu ane mabhoneti anofanira kushandiswa.Mupombi system ye catalytic cracking unit yeoiri yekunatsa unit, inosimudza-mhando yebhora valve inogona kusarudzwa.
Mumidziyo nemapombi ezvekuora media akadai seasidhi nealkali mumakemikari masisitimu, zvinokurudzirwa kushandisa ese esimbi isina tsvina mavharuvhu akagadzirwa neaustenitic Stainless simbi uye polytetraoxyethylene sechigaro uye chisimbiso mhete.
Metal-to-metal sealing bhora mavharuvhu anogona kushandiswa pombi masisitimu kana midziyo yepamusoro-tembiricha midhiya mune metallurgical masisitimu, simba masisitimu, petrochemical kuisirwa, uye mumadhorobha kudziyisa masisitimu.
Kana kuyerera kunoda kugadziriswa, worm-gear drive, pneumatic kana yemagetsi bhora vharafu ine V-yakaita kuvhura inogona kusarudzwa.