Globe mavharuvhu, mavharuvhu gedhi, shavishavi mavharuvhu, cheki mavharuvhu, bhora mavharuvhu, etc. zvose zvinokosha kudzora zvinoumba siyana pombi masisitimu. Ivhavha yega yega yakasiyana muchitarisiko, chimiro uye kunyange kushanda kushanda. Zvisinei, vharuvhu yeglobhu nevharuvhu yegedhi zvine zvimwe zvakafanana pakuonekwa, uye zvose zvine basa rekucheka mupombi, saka shamwari zhinji dzinenge dziine mavharuvhu zvishoma dzinovhiringa zviviri izvi. Muchokwadi, kana iwe ukatarisisa, mutsauko pakati pevharuvhu yepasi uye gedhi vharafu wakakura kwazvo.

1 Mamiriro ezvinhu

Kana nzvimbo yekuisa iri shoma, iwe unofanirwa kubhadhara kune kusarudzwa. Ivhavhavha yegedhi inogona kuvharwa zvakasimba nechiso chekuvhara nepakati pekumanikidzwa, kuitira kuti uwane mhedzisiro yekusadonha. Pakuvhura nekuvhara,simbi yevharuvhu uye chigaro chevhavha chisimbiso chepamusorovanogara vachisangana uye vachikwizana kune mumwe nemumwe, saka iyo yekuisa chisimbiso iri nyore kupfeka. Kana gedhi regedhi riri pedyo nekuvhara, mutsauko wekumanikidza pakati pemberi uye kumashure kwepombi yakakura kwazvo, izvo zvinoita kuti chisimbiso chepamusoro chipfeke zvakanyanya. Chimiro chevhavha yegedhi chichave chakanyanya kuoma kupfuura valve yeglobe. Kubva pachitarisiko chekutarisa, pasi peiyo caliber, vheji yegedhi yakakwirira kupfuura globe valve, uye vheji yepasirebe yakareba kupfuura vheji yegedhi. Mukuwedzera, gedhi regedhi rakakamurwawo kuva tsinde inosimuka uye yakavanzwa. Iyo globe valve haina.

2 Kushanda musimboti

Kana vheji yekumisa yakavhurwa uye yakavharwa, imhando yemhando yevharuvhu inosimuka, ndiko kuti, kana vhiri reruoko richitenderedzwa, handwheel inotenderera uye ichisimuka uye ichidonha nevhavha stem. Ivhavha yegedhi inoshandura handwheel kuita kuti tsinde yevhavha isimuke nekudonha, uye nzvimbo yehandwheel pachayo inoramba isina kuchinja. Chiyero chekuyerera chakasiyana. Ivhavha yegedhi inoda kuvhura kuzere kana kuvharwa kwakazara, nepo vharafu yekumisa isingaite. Iyo vharafu yekumisa yakatsanangura nzira yekupinza uye yekubuda; gedhi regedhi harina chinopinda uye chinobuda chinotungamira zvinodiwa.Kuwedzera, vheji yegedhi ine nyika mbiri chete: kuvhura kuzere kana kuvharwa kwakazara. Gedhi rekuvhura nekuvhara siroko yakakura uye yekuvhura nekuvhara nguva yakareba. Iyo valve plate yekufamba sitiroko yevhavha yekumisa idiki zvakanyanya, uye vheji yevhavha yevhavha yekumisa inogona kumira pane imwe nzvimbo panguva yekufamba kweiyo kuyerera kwemutemo. Ivhavha yegedhi inogona kushandiswa chete kutema uye haina mamwe mabasa.

3 Musiyano wekuita

Iyo yekumisa valve inogona kushandiswa kune ese ari maviri kuchekaoff uye kuyerera mutemo. Kupokana kwemvura yevharuvhu yekumisa kwakakura, uye kunonyanya kunetsa kuvhura nekuvhara, asi nekuti ndiro yevharuvhu ipfupi kubva pachisimbiso, kuvhura nekuvhara sitiroko ipfupi. Nekuti gedhi vharafu rinogona chete kuvhurwa zvizere uye kuvharwa zvakazara, kana razarurwa zvakazara, yepakati kuyerera kuramba muvharuvhu muviri chiteshi inosvika 0, saka vharafu yegedhi ichave yakanyanya kuchengetedza basa kuvhura nekuvhara, asi gedhi. iri kure nenzvimbo yekuisa chisimbiso, uye nguva yekuvhura nekuvhara irefu.

4 Kuisa uye kuyerera nzira

Ivhavhavha yegedhi ine mhedzisiro yakafanana mumativi ese, uye hapana chinodiwa kune yekupinza uye yekubuda nzira panguva yekuisa, uye yepakati inogona kuyerera munzira mbiri. Ivhavha yekumisa inoda kuiswa zvakasimba munzira yechiratidzo chemuseve pane muviri wevhavha. Kune zvakare mutemo wakajeka pane inopinza uye yekubuda nzira yevhavha yekumisa. vharuvhu yenyika yangu "vatatu-mu-imwe" inotaura kuti mafambiro evharuvhu yekumira nguva dzose kubva kumusoro kusvika pasi.

Ivhavha yekumisa yakaderera inlet uye yakakwira kubuda, uye kubva kunze zviri pachena kuti pombi haisi pamutsetse wakachinjika wakafanana. Gedhi vharafu inoyerera chiteshi iri pamutsetse wakachinjika wakafanana. Kurova kwevhavha yegedhi yakakura kudarika iyo yevhavha yekumira.

Kubva pakuona kwekuyerera kwekudzivirira, gedhi regedhi rine kupikisa kuduku kwekuyerera kana yakazarurwa zvakakwana, uye cheki chevhavha ine simba guru rekuyerera. Iyo inoyerera inopikisa coefficient yeyakajairika gedhi vharafu inenge 0.08 ~ 0.12, kuvhura uye kuvhara simba idiki, uye yepakati inogona kuyerera munzira mbiri. Kuyerera kwekupokana kweakajairwa mavharuvhu ekumira ndeye 3-5 nguva iyo yegedhi mavharuvhu. Pakuvhura nekuvhara, kuvhara kwekumanikidzirwa kunodiwa kuti uwane chisimbiso. Ivhavha yevhavha yevhavha yekumira inobata nzvimbo yekuisa chisimbiso chete kana yakavharwa zvachose, saka kupfeka kwechiso chekuvhara kuduku zvikuru. Sezvo simba guru rekuyerera rakakura, vheji yekumisa inoda actuator inofanirwa kutarisisa kugadziridzwa kweiyo torque control mechanism.

Pane nzira mbiri dzekuisa valve yekumisa. Imwe ndeyekuti iyo yepakati inogona kupinda kubva pasi pevhavha core. Zvakanakira ndezvokuti kurongedza hakusi pasi pekumanikidzwa kana vheji yakavharwa, iyo inogona kuwedzera hupenyu hwebasa rekutakura, uye kutakura kunogona kuchinjwa kana pombi iri pamberi pevhavha iri pasi pekumanikidzwa; iyo yakashata ndeyokuti torque yekufambisa yevhavha yakakura, iyo inenge 1 nguva iyo yekuyerera kubva kumusoro, uye simba reaxial pamadziro evhavha yakakura, uye tsinde yevhavha iri nyore kukotama. Nokudaro, nzira iyi inowanzokodzera mavharuvhu madiki-diameter (pazasi peDN50), uye mavharuvhu ekumisa ari pamusoro peDN200 anoshandisa nzira yepakati inoyerera ichibva kumusoro. (Mavharuvhu ekumisa magetsi anowanzo shandisa nzira yepakati kupinda kubva kumusoro.) Kuipa kwenzira yepakati inopinda kubva kumusoro inonyatsopesana nenzira yekupinda kubva pasi.