Iwe unofanirwa kuziva, vharafu zvakare ine hasha dzayo!

Iyo yakaderera kudonha kwevhavha yekuvhara, zviri nani.Kubuda kwevharuvhu yakapfava ndiyo yakaderera.Ehe, iyo yekucheka-kubvisa mhedzisiro yakanaka, asi haina kupfeka-inodzivirira uye ine kusavimbika kwakashata.

1. Sei zviri nyore kutenderedza kana vharafu yezvigaro zviviri ichishanda nekuvhura kudiki?
Kune imwechete musimboti, vharafu ine kugadzikana kwakanaka kana yepakati ichiyerera yakavhurika mhando, uye isina kugadzikana kana yepakati ichiyerera yakavharwa mhando.Ivhavhavha yechigaro cheviri ine mavharuvhu maviri, iyo yepasi yevharuvhu core iri mukuyerera yakavharwa chinzvimbo, uye yekumusoro vharafu core iri mukuyerera yakavhurika chinzvimbo.Nenzira iyi, kana vharuvhu ichishanda pane kuvhura kudiki, iyo inoyerera yakavharwa yevhavha core iri nyore kukonzeresa kuzununguka kwevharuvhu, ndicho chikonzero nei chigaro chechigaro cheviri chisingagoni kushandiswa padiki rekuvhura basa.

2. Sei isingagone kushandiswa sevharuvhu yekuvhara kaviri?
Kubatsira kwekaviri chigaro chevharuvhu musimboti ndiyo yesimba rekuenzanisa chimiro, ichibvumira hukuru hwekumanikidza musiyano, asi chakashata chayo ndechekuti nzvimbo mbiri dzekuisa chisimbiso hadzigone kusangana zvakanaka panguva imwe chete, zvichikonzera kudonha kukuru.Kana iyo yakashandiswa uye nekumanikidzirwa kushandiswa mumamiriro ekucheka, mhedzisiro yacho haina kunaka.Kunyangwe kana kuvandudzwa kwakawanda kwakagadzirirwa iyo (yakadai sevhavha yakavharwa kaviri), hazvikurudzirwe.

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Iyo yevhavha yepakati yeyakatwasuka sitiroko vharafu inodzika throttling, uye yepakati yakachinjika kuyerera mukati nekubuda, saka nzira yekuyerera mukamuri yevharuvhu inofanira kutendeuka nekudzokera kumashure, izvo zvinoita kuti nzira yekuyerera yevharuvhu ive yakaoma kwazvo (chimiro chakafanana. inverted "s" chimiro).Nenzira iyi, kune nzvimbo dzakawanda dzakafa, dzinopa nzvimbo yekunaya kwepakati uye kukonzera kuvharika mukufamba kwenguva.Iyo nzira inotenderedza yeangular yekufamba vharafu ndiyo yakachinjika nzira.Iyo svikiro inoyerera ichipinda nekubuda yakachinjika, saka zviri nyore kubvisa svikiro.Panguva imwecheteyo, nzira yekuyerera iri nyore uye nzvimbo yekunaya kwepakati idiki kwazvo, saka iyo anti blocking performance yeangular yekufamba valve yakanaka.
4. Sei dzinde restrate stroke control valve rakatetepa?

Inosanganisira yakapfava mechanicha musimboti: hombe kutsvedza kukweshera uye kukwesha kudiki.Dzinde revharuvhu rakatwasuka rinofamba richikwira nekudzika.Kana iyo yekurongedza ikatsikirirwa zvishoma, inoputira tsvimbo yevhavha yakasimba uye inoburitsa mutsauko mukuru wekudzoka.Nokuda kwechikonzero ichi, chivharo chevhavha chakagadzirirwa kuva chiduku zvikuru, uye kurongedza kunowanzoshandiswa nePTFE kurongedza nediki friction coefficient, kuitira kuderedza kukanganisa kwekudzoka.Zvisinei, dambudziko nderekuti hunde yevhavha yakatetepa, iyo iri nyore kukotama uye hupenyu hwekutakura hupfupi.Nzira yakanakisa yekugadzirisa dambudziko iri ndeye kushandisa rotary valve stem, kureva, angle stroke type control valve.Dzinde rayo rakareba 2-3 nguva yakakora kupfuura yakatwasuka sitiroko valve stem, uye iyo graphite inotakura nehupenyu hurefu hwebasa inosarudzwa.Iyo yevhavha tsvimbo kuoma kwakanaka, hupenyu hwekurongedza hwakareba, uye friction torque yayo idiki uye musiyano wekudzoka idiki.

5. Sei iyo yekucheka-kubvisa kudzvanywa musiyano we angle stroke valve yakakura?
Iyo yakakura yekucheka-kubvisa yekumanikidza musiyano weiyo angle sitiroko vharafu imhaka yekuti simba rinokonzeresa rinogadzirwa nepakati pavharuvha core kana ndiro yevharuvhu inoburitsa diki torque pane inotenderera shaft, saka inokwanisa kumirisana nekumanikidza kwakakura kusiyana.

6. Sei hupenyu hwesevhisi yerabha ine mitsetse yeshavishavi vharafu uye fluorine lined diaphragm vharafu ichishandiswa mumvura ine munyu ipfupi zviri pakati nepakati?
Kune yakaderera concentration asidhi kana alkali mune desalted mvura svikiro, izvo zvinoora kuita rabha.Rubber corrosion performance yekuwedzera, kuchembera, kusimba kwakaderera, ine rabha yakamisikidzwa butterfly vharafu, diaphragm valve kushandiswa haina kunaka, hunhu hwayo irabha corrosion resistance.Rubber yekumashure ine diaphragm valve yakagadziridzwa kuita fluorine lined diaphragm valve ine yakanaka corrosion resistance.Zvisinei, membrane yefluorine lined diaphragm valve yaisakwanisa kumira kupeta kumusoro uye pasi, zvichikonzera kukanganisa kwemagetsi uye kupfupisa hupenyu hwebasa revhavha.Iye zvino nzira yakanakisisa ndeyokushandisa yakakosha bhora revhavha yekurapa mvura, iyo inogona kushandiswa kwemakore 5-8.

7. Sei vharuvhu yekuvhara ichifanira kuvharwa zvakasimba?
Iyo yakaderera kudonha kwevhavha yekuvhara, zviri nani.Kubuda kwevharuvhu yakapfava ndiyo yakaderera.Ehe, iyo yekucheka-kubvisa mhedzisiro yakanaka, asi haina kupfeka-inodzivirira uye ine kusavimbika kwakashata.Zvinoenderana nekaviri zviyero zvekudonha kudiki uye kuiswa chisimbiso kwakavimbika, kuvharika kwakapfava kuri nani pane kuomesa chisimbiso.Zvakadai senge yakazara-inoshanda ultra light control valve, yakavharwa uye yakaturikidzwa ne-wear-resistant alloy kuchengetedzwa, kuvimbika kwakanyanya, chiyero chekudonha kwe10-7, yakakwanisa kuzadzisa zvinodiwa zvevhavha yekuvhara.

8. Sei sleeve valve isina kutsiva imwe uye kaviri chigaro vharafu?
Mavharuvhu emaoko, ayo akabuda muma1960, aishandiswa zvakanyanya kumba nekune dzimwe nyika muma1970.Mumiti yepetrochemical yakaunzwa mu1980s, mavharuvhu emaoko akaverengera chikamu chikuru.Panguva iyoyo, vanhu vazhinji vaitenda kuti mavharuvhu emaoko anogona kutsiva mavharuvhu echigaro chimwe chete uye maviri uye ova zvigadzirwa zvechizvarwa chechipiri.Kusvika zvino, hazvina kudaro.Single seat valve, kaviri seat valve uye sleeve valve zvese zvinoshandiswa zvakaenzana.Izvi zvinodaro nekuti vharafu inongovandudza fomu rekupuruzira, kugadzikana uye kugadzirisa, asi huremu hwayo, anti blocking uye leakage zviratidzo zvinopindirana neaya evharuvhu yechigaro chimwe uye vharafu yechigaro cheviri.Inogona sei kutsiva vharafu yechigaro chimwe chete uye vharafu yechigaro cheviri?Naizvozvo, vanogona chete kushandiswa pamwe chete.

9. Sei kusarudza kuchikosha kupfuura kuverenga?
Kuenzaniswa nekuverenga, sarudzo yemhando inonyanya kukosha uye yakaoma.Nekuti kuverenga kunongova kwakapfava formula kuverenga, hazvinei nekurongeka kweformula pachayo, asi nekurongeka kweiyo yakapihwa maitiro paramita.Pane zvakawanda zviri mukati zvinobatanidzwa mukusarudzwa kwemuenzaniso.Kana ikasangwarira, ichaita kuti kusarudzwa kusina kukodzera, izvo zvisingazokonzeri kukanganisa kwevashandi, zvinhu zvehupfumi uye mari, asiwo zvinokonzera mamwe matambudziko mukushandiswa, zvakadai sekuvimbika, hupenyu hwebasa uye hutano hwekushanda.