Kana nzvimbo yekuisa ishoma, ndapota teerera kune:

Ivhavha yegedhi inogona kuvharwa zvakasimba nekuvhara kwepamusoro nepakati pekumanikidzwa, kuitira kuti uwane mhedzisiro yekusadonha.Paunenge uchivhura nekuvhara, iyo yevhavha yepakati uye chigaro chevhavha chisimbiso chepamusoro chinogara chakabatana uye chichikwizana kune mumwe nemumwe, saka chisimbiso chepamusoro chiri nyore kupfeka.Kana gedhi regedhi riri pedyo nekuvhara, mutsauko wekumanikidza pakati pemberi uye kumashure kwepombi yakakura, izvo zvinoita kuti chisimbiso chepamusoro chipfeke zvakanyanya.

Chimiro chevhavha yegedhi ichave yakaoma kupfuura iyo yevhavha yepasi.Kubva pakuona kwechitarisiko, vharafu regedhi rakareba kupfuura vharuvhu yepasi uye vharuvhu yepasirebe yakareba kupfuura vharafu yegedhi pasi pedhayamita imwechete.Mukuwedzera, mavharuvhu emagedhi akakamurwa kuva matanda akazaruka uye matanda matema.Ivhavha yekuvhara haiiti.

Ko vharuvhu yepasi uye gedhivhavha inogona kusanganiswa here?

kushanda musimboti

Kana iyo globe valve yakavhurwa uye yakavharwa, imhando yevharuvhu inosimuka, kureva kuti, kana vhiri remaoko richitenderedzwa, handwheel inotenderera nekusimudza pamwe chete netsinde yevhavha.Ivhavhavha yegedhi ndeyekutenderedza handwheel kuita kuti hunde yevharuvhu iende kumusoro uye pasi, uye nzvimbo yehandwheel pachayo inoramba isingachinji.

Kuyerera kwemitengo inosiyana, mavharuvhu emagedhi anoda kuvhurika zvizere kana kuvharwa zvakazara, uye mavharuvhu epasi haadi.Globe mavharuvhu akatsanangura nzira dzekupinda nekubuda nadzo, nepo mavharuvhu emagedhi asina zvinodiwa zvekupinda nekubuda.

Mukuwedzera, gedhi regedhi rine nyika mbiri chete: yakazaruka zvakakwana kana yakavharwa zvakakwana, gedhi rekuzarura nekuvhara sitiroko yakakura, uye nguva yekuzarura nekuvhara yakareba.Iyo yekufamba sitiroko yevharuvhu yevharuvhu idiki zvakanyanya, uye ndiro yevharuvhu yevharuvhu inogona kumira pane imwe nzvimbo panguva yekufamba kwekuyerera kuyerera.Ivhavhavha yegedhi inogona kungoshandiswa kudzikisa uye haina mamwe mabasa.

Musiyano wekuita

Iyo globe valve inogona kushandiswa kune ese akachekwa-kubvisa uye kuyerera mutemo.Kupikiswa kwemvura yevharuvhu yeglobe yakakura, uye zvinonetsa kuvhura nekuvhara, asi nekuda kwekuti chinhambwe chiri pakati peplate yevharuvhu nenzvimbo yekuvharisa ipfupi, kuvhura nekuvhara sitiroko ipfupi.

Nekuti vharafu yegedhi inogona kungovhurwa zvizere uye kuvharwa zvizere, kana yavhurwa zvizere, kuyerera kwepakati kuyerera muvharuvhu muviri chiteshi kunenge 0, saka kuvhura uye kuvhara kwevhavha yegedhi kuchave kuponesa basa, asi iyo gedhi riri kure nenzvimbo yekuisa chisimbiso, uye kuvhura nekuvhara nguva yakareba..

kuiswa uye kuyerera

Thegedhi vharafuine mugumisiro wakafanana mumativi ose ari maviri.Iko hakuna chinodiwa chekutungamira kweinopinza uye yekubuda, uye yepakati inogona kuyerera mumativi ese.Iyo globe valve inoda kuiswa zvakanyatsoenderana negwara rinoratidzwa nemuseve pane muviri wevharuvhu.Panewo mutemo wakajeka pamusoro pekutungamira kwekupinda uye kubuda kwevhavha yeglobe."Matatu emakemikari maitiro" emavharuvhu munyika yangu anoreva kuti mafambiro evharuvhu yepasi achabva kumusoro kusvika pasi.

Iyo vharuvhu yepasi yakadzikira mukati uye yakakwira kunze, uye zviri pachena kubva kunze kuti pombi haisi pamutsetse wakachinjika wechikamu chimwe.Iyo gedhi vharafu inoyerera mugero iri pamutsetse wakachinjika.Kurova kwevharuvhu yegedhi yakakura kupfuura iyo yevharuvhu yepasi.

Kubva pakuona kwekuyerera kwekudzivirira, kuyerera kwekuvhara kwevhavha yegedhi kuduku kana yakazaruka zvakakwana, uye kuyerera kwekudzivirira kwevhavha yekutakura mutoro yakakura.Iyo inoyerera inopikisa coefficient yeakajairwa gedhi mavharuvhu anenge 0.08 ~ 0.12, kuvhura uye kuvhara simba idiki, uye yepakati inogona kuyerera munzira mbiri.Kuyerera kwekupokana kweakajairwa eglobhu mavharuvhu ndeye 3-5 nguva iyo yegedhi mavharuvhu.Pakuvhura nekuvhara, inoda kumanikidzwa kuvhara kuti iwane chisimbiso.Iyo yevhavha yepakati yevhavhavhavha inongobata nzvimbo yekuisa chisimbiso kana yakavharwa zvachose, saka kupfeka kwechisimbiso kudiki.Nekuda kwekuyerera kukuru kwesimba guru, vheji yepasirese inoda actuator inofanirwa kutarisisa kune torque control mechanism.Kugadzirisa.

Pane nzira mbiri dzekuisa valve yeglobe.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 inogona kutakura kudzvinyirira mupombi pamberi pevhavha.Pasi pemamiriro ezvinhu, kuchinjwa kwekutakura kunoitwa;iyo yakashata ndeyokuti torque yekufambisa yevhavha yakakura, inenge 1 nguva iyo yekuyerera kwepamusoro, simba re axial pavhavha yevhavha yakakura, uye tsinde yevhavha iri nyore kukotama.

Naizvozvo, nzira iyi inowanzokodzera mavharuvhu madiki-diameter eglobhu (pazasi peDN50), uye mavharuvhu epasi pamusoro peDN200 anoshandisa nzira iyo svikiro inoyerera ichibva kumusoro.(Ivhavhavha yeglobhu yemagetsi inowanzotora nzira yekupinda pakati kubva kumusoro.) Kuipa kwekupinda mukati kubva kumusoro kunongopesana nenzira yekupinda kubva pasi.

seal on

Iyo yekuvharisa pamusoro pevhavha yeglobe idiki trapezoidal parutivi rwevhavha core (kunyanya zvinoenderana nechimiro chevhavha core).Kana imwe nguva yevhavha inowira pasi, yakaenzana nevhavha yekuvhara (kana mutsauko wekumanikidzika wakakura, hongu, hauna kuvharwa zvakasimba, asi anti-reverse effect haina kuipa).Ivhavha yegedhi yakavharwa padivi pegedhi repakati pevhavha.