Iwo makumi maviri nenhanhatu mapoinzi ekuiswa kwevharuvhu, gumi nemana makuru taboo eyakajairwa kuisirwa mavharuvhu zvakanakira uye kuipa kwekusuma.

Iwo makumi maviri nenhanhatu mapoinzi ekuiswa kwevharuvhu, gumi nemana makuru taboo eyakajairwa kuisirwa mavharuvhu zvakanakira uye kuipa kwekusuma.

Muchigadziro chekuvaka, kunaka kwekuiswa kwevhavha kunobata zvakananga kushanda kwakajairika mune ramangwana, saka tinofanira kuiteerera. Saka, unoisa sei valve? Ndeapi mapoinzi akakosha ekuisa valve? Ndezvipi zvinorambidzwa uye zvidziviriro?
5 mapoinzi akakosha ekuisa valve
1 Direction uye chinzvimbo
Mavharuvhu mazhinji anonanga
Semuenzaniso, globe valve, throttle valve, pressure kuderedza valve, cheki valve, nezvimwewo, kana ikaiswa mumashure, inokanganisa kushandiswa kwekushandisa uye hupenyu (zvakadai se throttle valve), kana kusashanda zvachose (zvakadai sekuderedza kuderedza. vharafu), uye kunyange kukonzera njodzi (yakadai sevhavhavhavha). Mavharuvhu akazara ane mavara anotungamira pamuviri. Kana zvisina kudaro, inofanira kunyatsozivikanwa maererano nemutemo wekushanda kwevhavha.
Kamuri yevharuvhu yakatenderedza vharuvhu yepasirese ndeye asymmetrical, fluid kuti irege kubva pasi kuenda kumusoro kuburikidza nevharuvhu chiteshi, saka kupikisa kwemvura kudiki (kunotemerwa nechimiro), yakavhurika basa-inoponesa (nekuda kwepakati kudzvanywa kumusoro) , yakavharwa mushure mepakati pekumanikidza kurongedza, nyore kugadzirisa, ichi ndicho chikonzero valve yeglobe isingagoni kuisa chokwadi. Mamwe mavharuvhu ane maitiro awo.
Kuiswa kwevhavha kunofanirwa kuve nyore kushanda
Kunyange kana kuiswa kwacho kwakaoma kwenguva, zvakakosha kufunga nezvebasa renguva refu remuiti. Zvirinani vharafu handwheel uye kurongeka kwechipfuva (kazhinji 1.2 metres kubva pauriri hwekushanda), kuitira kuti kuvhura nekuvhara kwevhavha kusashanda zvishoma. Floor valve handwheel inofanira kunge yakatarisa kumusoro uye kwete kurereka kudzivirira kushanda kusina kunaka. Ivhavha yemuchina wemadziro zvinoenderana nemidziyo, uye mushandisi anofanirawo kusiiwa akamira.
Kuti udzivise kushanda kwedenga, kunyanya asidhi uye alkali, toxic media, zvikasadaro haina kuchengetedzeka.
The gedhi harifaniri inverted (ndiko kuti, handwheel iri pasi), zvikasadaro svikiro achachengetwa mubutiro nzvimbo kwenguva yakareba, nyore corrode hunde, uye zvimwe muitiro zvinodiwa taboo. Izvo zvakanyanya kusagadzikana kutsiva kurongedza panguva imwe chete. Vhura STEM GATE VALVES, USAISE pasi pevhu, zvikasadaro nekuda kwekunyorova kwehunde yakafumurwa.
Simudza cheki vharafu, kuisirwa kuve nechokwadi kuti vharafu disc vertical, kuitira kuti kusimudza kuchinjike. Swing cheki vharafu, kana yaiswa kuti ive nechokwadi chekuti pini nhanho, kuitira kuti iite inoshanduka. Ivhavha yekudzikisa pressure ichaiswa yakatwasuka pane horizontal pombi, uye haizorerekera kune chero nzira.
2 Basa Rokuvaka
Kuisa uye kuvaka kunofanira kuchenjerera, usarove valve yakagadzirwa nebrittle materials.
Kusati kwaiswa
Mhando dzese dzevharuvhu uye zvakatemwa zvichanyatso tariswa kuti zvienderane nezvinodiwa zvekugadzira.
(TARIRA kuti ZVINOGONA KUSHANDISA MUZVINHU ZVINODIWA maererano nemuenzaniso wevharuvhu nemirayiridzo yefekitari, uye ita bvunzo dzemvura kana mhepo kana zvichidikanwa.)
Mukuwedzera, inofanirawo kuongororwa kana kurongedza kwacho kwakasimba, kana gland bolt ine mvumo yakakwana yekugadzirisa, uye kutarisa kana stem uye disc inonzwika, kana pane yakanamatira uye skew phenomenon.
Iyo yekuisa chisimbiso pamusoro pevhavha disc inofanira kuvharwa zvakasimba, uye kunaka kweshinda kunofanirwa kuongororwa kune mavharuvhu ane threaded. Mavharuvhu asina kukodzera HAACHAPIWA uye achaiswa akapatsanurwa kana kumakwa.
Debris muvharuvhu.
The installation process
PaKUSIMUDZA VAVIRI, TAMBO HAIFANIRI KUSENGERWA KURUOKO RWERUOKO KANA KUTI KUTI UDZIVIRIRE KUKANGANUKA KUZVITI IZVI. INOFANIRA KUSUNGAMIRIRWA KUFUNGA.
Mutsara uyo valve yakabatanidzwa inofanira kucheneswa.
Mhepo yakadzvanywa inogona kushandiswa kuridza iron oxide filings, jecha, welding slag uye mamwe maturu. Aya marara, kwete nyore nyore kukwenya chisimbiso pamusoro pevhavha, iyo yakakura particles yemarara (yakadai sewelding slag), asiwo inogona kuvhara vharafu duku, kuitira kuti kukundikana kwayo.
Paunenge uchiisa SCREW VALVE, KUSIMIRA KUSVIRA (WIRE NEAluminium mafuta OR PTFE RAW material belt) inofanira kuputirwa patambo yepombi, usapinda mukati mevhavha, kuitira kuti udzivise vhoriyamu yekuyeuka kwevhavha, inokanganisa kuyerera kwepakati.
Paunenge uchiisa flange mavharuvhu, teerera kuomesa mabhaudhi symmetrically uye zvakaenzana. Ivhavha yevhavha uye pombi flange inofanira kufanana, kujekesa kunonzwisisika, kuti vharafu irege kubudisa kudzvinyirira kwakanyanya, kunyange kutsemuka. Kune brittle zvinhu uye kwete simba rakakwirira revhavha, kunyanya kukoshesa kunofanira kubhadharwa. Ivhavha inosungirirwa nepombi ichave yakasvibiswa kutanga, ipapo chikamu chakavharwa chichavhurwa zvakakwana, uye ipapo welded yakafa.
3 Dziviriro Matanho
Mamwe mavharuvhu anofanirwawo kuve nekudzivirirwa kwekunze, kunova kuchengetedza kupisa uye kuchengetedza kutonhora. Iyo insulation layer dzimwe nguva inosanganiswa nemitsetse yemhepo inopisa. Ndeupi rudzi rwevhavha runofanira kupisa kana kutonhora, maererano nezvinodiwa zvekugadzira.
In musimboti, apo svikiro svikiro kuderedza tembiricha yakawandisa, kuchakanganisa kugadzirwa kunyatsoshanda kana chando vharafu, unofanira kuramba ichidziya, kunyange kusanganisa kupisa; Ipo vharafu isina kushama, inopesana nekugadzirwa kana kukonzera chando uye zvimwe zvakashata zviitiko, unofanirwa kugara uchitonhora. Insulation zvinhu ndeye asbestos, slag wool, girazi mvere, perlite, diatomite, vermiculite, nezvimwewo; Zvinhu zvinotonhora ndezve cork, perlite, foam, plastiki uye zvichingodaro.
4 Bypass uye mita
Mamwe mavharuvhu, kuwedzera kune anodiwa ekudzivirira zvivako, anewo bypass uye instrumentation. Kupfuura kwakaiswa. Zviri nyore kugadzirisa musungo. Mamwe mavharuvhu, akaiswawo bypass. Kuiswa kwebypass kunoenderana nemamiriro evharuvhu, kukosha, uye zvinodiwa zvekugadzira.
5 Kurongedza kutsiva
Stock valve, kumwe kurongedza kwave kusina kunaka, uye zvimwe hazvienderane nekushandiswa kwemidhiya, inoda kutsiva kurongedza.
Fekitori yevhavha haigone kufunga nezve kushandiswa kwezviuru zvemhando dzakasiyana dzemidhiya, bhokisi rekurongedza rinogara rakazadzwa neyakajairwa mudzi, asi kana rashandiswa, rinofanira kurega kurongedza mukati kuti rigadzirise.
Paunenge uchitsiva kurongedza, dzvanya mukati denderedzwa nekutenderera. Imwe neimwe mhete seam kusvika 45 madhigirii yakakodzera, mhete uye mhete yakazaruka 180 madhigirii. Kureba kwekurongedza kunofanirwa kufunga nezve nzira yekuti gland ienderere mberi nekudzvanya, uye zvino zvakafanira kurega chikamu chezasi chegland chichitsikirira kamuri yekurongedzera kusvika pakadzika kwakakodzera, iyo inogona kunge iri 10-20% yehupamhi hwese. kurongedza chamber. Pamavharuvhu anodaidzira, iyo yejoin Angle i30 madhigirii. Musono pakati pemhete nemhete inodzika 120 madhigirii.
Pamusoro pekurongedza, asi zvakare zvinoenderana nemamiriro chaiwo, kushandiswa kwerabha O-ring (rabha remasikirwo rinopesana ne60 madhigirii Celsius asina simba alkali, butadiene rabha rinopesana ne80 madhigirii emafuta ekristaro, Fluorine rabha rinopesana nemhando dzakasiyana dzekuora. midhiya iri pazasi pe150 madhigirii celsius) matatu akaturikidzana polytetrafluoron mhete (inoshingirira kune zvinoodza media zviri pasi pe200 madhigirii celsius) mhete yendiro yenaironi (inodzivirirwa kusvika 120 madhigirii Celsius ammonia, alkali) nezvimwe zvinogadzira filler.
Mutsara weTEflon raw material tepi unogona kuvandudza chisimbiso mhedzisiro uye kuderedza electrochemical corrosion yevhavha hunde. Paunenge uchidzvanya chirungiso, shandura dzinde panguva imwe chete kuti urambe wakatenderedza zvakaenzana, uye kudzivirira kufa zvakanyanya, simbisa gland kumanikidza zvakaenzana, haigone kurereka.
Kuiswa kwevharuvhu 14 makuru taboos
1
Contraindications: ZVINHU zvikuru zvekushandisa, zvishandiso uye zvigadzirwa zvinoshandiswa mukuvaka zvinoshaya magwaro ekuongorora emhando yepamusoro kana zvitupa zvekukodzera chigadzirwa zvinoenderana nemamiriro azvino enyika kana gurukota.
Mhedzisiro: mhando yeprojekiti haina kukodzera, kune tsaona dzakavanzwa, hazvigone kuendeswa panguva yakatarwa, inofanira kugadziridzwa zvakare; Kukonzeresa kunonoka kweprojekiti, manpower uye zvinhu zvekuisa kuwedzera.
Matanho: izvo zvakakosha zvekushandisa, zvishandiso uye zvigadzirwa zvinoshandiswa mukupihwa kwemvura uye kudhiraivha uye kupisa uye hutsanana engineering inofanirwa kusangana neazvino zviyero zvakapihwa nehurumende kana shumiro yehunyanzvi hwekuongorora magwaro kana chitupa chekukodzera chigadzirwa; Zita rechigadzirwa, modhi, yakatarwa, yenyika mhando chiyero kodhi, zuva rekutumira, zita uye nzvimbo yemugadziri, chitupa chekuongorora kana kodhi yekutumira icharatidzwa.
2
Usaita: Kuiswa kwevhavha pamberi pehutano hunodiwa hunoongororwa maererano nemitemo.
Mhedzisiro: system operation valve switch haichinjike, inovhara zvakasununguka uye kubuda kwemvura (steam) chiitiko, zvichikonzera kugadzirisa zvakare, uye kunyange kukanganisa yakajairika mvura inopihwa (steam).
Kuyera: Ivhavha inofanira kuongororwa kusimba kwesimba uye kusimba isati yaiswa. Muedzo uchasarudza 10% yehuwandu hwebatch yega yega (mhando imwe chete, kutsanangurwa kwakafanana, modhi yakafanana), uye kwete isingasviki imwe. Nokuda kwevhavha yevhavha yakavharwa yakaiswa papombi huru kuti ibvise basa, inofanira kuva imwe neimwe yekuedza simba uye kusimba. Iyo VALVE simba uye tightness yekuyedza kumanikidza ichaenderana ne "Construction Quality Acceptance Code yekuvaka Mvura Supply, drainage and Heating Engineering" (GB 50242-2002).
3
Taboo: Kuisirwa mavharuvhu maratidziro, mamodheru haasangane nezvinodiwa zvekugadzira. Semuenzaniso, kudzvinyirirwa kwezita revhavha ishoma pane system test pressure; Kana iyo dhayamita yepombi yebazi remvura yekudyisa isingasviki kana yakaenzana ne50mm, gedhi revhavha rinoshandiswa; Mvura inopisa inopisa yakaoma, yakatwasuka pombi uchishandisa vharafu yekumisa; Pombi yekukweva yepombi yemoto inoshandisa shavishavi valve.
Mhedzisiro: Kukanganisa valve yakajairika kuvhura uye kuvhara uye kugadzirisa kuramba, kumanikidza uye mamwe mabasa. Kunyange kukonzera kushanda kwehurongwa, kukuvara kwevharuvhu kumanikidzirwa kugadzirisa.
Matanho: Kujairana nekushandiswa kwemhando dzakasiyana-siyana dzemavharuvhu, zvinoenderana nezvinodiwa zvekugadzira kuti usarudze maratidziro evharuvhu uye modhi. Iyo yekumanikidza yezita revhavha ichasangana nezvinodiwa zve system test pressure. Maererano nezvinodiwa zvekodhi yekuvaka: mvura yekupa pombi dhayamita isingasviki kana yakaenzana ne50mm inofanira kushandiswa vharafu yekucheka; Mavharuvhu egedhi anofanirwa kushandiswa kana pombi dhayamita inopfuura 50mm.
Iyo inopisa mvura inopisa yakaoma, vertical control valve inofanira kushandisa gedhi vharafu, pombi yemoto yekusveta pombi haifanire kushandisa butterfly valve.
4
Usaite: Nzira yekuisa vharafu haina kunaka. Semuenzaniso, globe valve kana cheki chevhavha yemvura (steam) inoyerera nzira yakatarisana nechiratidzo, tsinde inoiswa pasi, iyo yakatwasuka yekuisa yevhavhavha yekutarisa inoiswa vertically, tsvimbo yegedhi vharafu kana butterfly valve mubato hauna kuvhurika kana nzvimbo yakavharwa, hunde yevharuvhu haina kutarisana nemusuwo wekuongorora.
Mhedzisiro: kutadza kwevharuvhu, chinja kugadzirisa matambudziko, vharafu inodzika pasi kazhinji inokonzeresa kubuda kwemvura.
Matanho: Isa vharafu zvakanyatsoenderana nemirairo yekuisa vharafu, siya tsinde yevharuvhu kuti uwedzere kureba kwekuvhura, vharavhavhavhavhavha rinonyatso funga nezve kutenderera kwemubato, marudzi ese evharuvhu tsinde haigone kuve yakaderera pane yakachinjika chinzvimbo, rega. ndega pasi. Vavhavha yakavanzwa kwete kungomisa kuti isangane nevhavha yekuvhura nekuvhara zvinodiwa zvegonhi rekuongorora, panguva imwechete iyo tsinde yevhavha inofanira kutariswa kumusuwo wekuongorora.
5
Taboo: butterfly valve flange ine yakajairika valve flange.
Migumisiro: shavishavi vharafu flange uye zvakajairika vharafu flange saizi yakasiyana, vamwe flange dhayamita idiki, uye shavishavi vharafu dhisiki yakakura, zvichiguma haigoni kuvhurwa kana zvakaoma kuvhura kukuvara vharafu.
Zviyero: zvinoenderana nehukuru chaihwo hwe butterfly valve flange flange processing flange.
6
Taboo: hapana maburi akachengetwa uye zvikamu zvakadzimirirwa mukuvaka kwechivako chimiro, kana saizi yemakomba akachengetwa idiki uye zvikamu zvakadzimirirwa hazvina kunyorwa.
Mhedzisiro: KUSVIRA kwehutsanana purojekiti kuvaka, tora chisel chivakwa chekuvaka, kunyangwe kucheka kusimbaradza kwekusimbisa, kukanganisa kuita kwekuchengetedza chivakwa.
Matanho: Ziva kudhirowa kwekuvaka kwekudziya uye hutsanana hutsanana nekungwarira, uye nekushingaira kushanda pamwe nekuvakwa kwechivako chekuvaka kuchengetedza maburi uye zvikamu zvakamisikidzwa zvinoenderana nezvinodiwa zvekuiswa kwepombi uye mahanger ekutsigira, nekutarisa zvakananga kune zvinodiwa zvekugadzira uye. zvirevo zvekuvaka.
7
Contraindications: Paunenge uchiputira pombi, iyo isiriyo magumo epombi mushure mekunge vaviri vacho vasiri paCentral Line, hapana gaka pane iyo peya, iyo gobvu yemadziro pombi haina kufoshorwa, uye hupamhi uye kukwirira kweweld hazviiti. kusangana nezvinodiwa zvekodhi yekuvaka.
Mhedzisiro: Mhedzisiro isina kunaka yepombi haisi mumutsara wepakati inobata zvakananga kunaka kwewelding uye yemhando yekuona. Hapana mukaha pakati pemativi maviri, iyo gobvu yemadziro pombi haina kufoshorwa, hupamhi uye kukwirira kweweld hazvienderane nezvinodiwa zvesimba remagetsi.
Matanho: Mushure mekucheka pombi peya, pombi haifanire kunge isiriyo, inofanira kunge iri paCentral Line, gaka rinofanira kusiiwa pairi, gobvu remadziro pombi rinofanira kunge rakafoshorwa girovha, nekuwedzera, hupamhi uye kukwirira kweiyo weld musono. inofanira kugadzirwa maererano nezvinodiwa.
8
Taboo: Iyo pombi inovigwa zvakananga muvhu rakaomeswa nechando uye hapana kurapwa kwevhu rakasununguka, pombi pier spacing uye nzvimbo isina kufanira, kana kunyange kushandiswa kwefomu yakaoma kodhi yezvidhinha.
Mhedzisiro: Nekuda kwerutsigiro rusina kugadzikana, pombi yakakuvadzwa mukuita kwekudzosera pasi tamping, zvichikonzera kugadzirisa zvakare.
Matanho: PIPELINE HAICHABIGWA MUIvhu RAKAOMERA kana ivhu risina kucheneswa, KUPANUKA KWEPIERS KUCHASANGANA nezvinodiwa zvekuvakwa kwekuvaka, UYE SUPPORT CUSHION ichave yakasimba, KUNYANYA pane pombi interface, iyo isingatakure shear force. Mabhii ezvidhinha anofanira kuvakwa nesamende dhaka kuti ave nechokwadi chekutendeseka uye kusimba.
9