Kazhinji, chiyero chesimba hachiitwe kana vheji yeindasitiri ichishandiswa, asi kuyedza kwesimba kunofanirwa kuitwa mushure mekunge muviri wevhavha uye chivharo chevhavha chagadziriswa kana kupiswa.Kuvhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavha,kumanikidzwa kwaro nguva dzose uye kudzoka kumanikidzika uye mamwe maedzo anofanirwa kuenderana nemirairo yawo nemirau yakakodzera.Muedzo wesimba revhavha uye vheji yekuisa chisimbiso bvunzo inofanira kuitwa pavharuvhu hydraulic test bhenji isati yaiswa valve.Low pressure valve spot check 20%, kana isina kukodzera inofanira kuva 100% yekuongorora;mavharuvhu epakati nepamusoro anofanirwa kuongororwa 100%.Midhiya inowanzoshandiswa pakuedza kumanikidza vharuvhu imvura, oiri, mhepo, chiutsi, nitrogen, nezvimwewo. Nzira dzekudzvanya dzemavharuvhu eindasitiri ane mavharuvhu epneumatic ndeaya anotevera:
1. Nzira yekuedza kudzvinyirira yeglobe valve uye throttle valve
Mukuyedzwa kwesimba kweglobe valveuye throttle valve, iyo yakaungana vharafu inowanzoiswa mukumanikidza bvunzo furemu, dhisiki yevharuvhu inovhurwa, iyo yepakati inobaiwa kune iyo yakatarwa kukosha, uye tarisa kana iyo vharafu muviri uye vharafu inovhara ziya uye kubuda.Muedzo wesimba unogonawo kuitwa pachidimbu chimwe chete.Muedzo wekuisa chisimbiso ndewe cheteglobe valve.Munguva yekuedzwa, dzinde reglobe valveiri munzvimbo yakatwasuka, dhisiki inovhurwa, uye svikiro inotangwa kubva pasi pedhisiki kusvika kune yakataurwa kukosha, uye kurongedza uye gasket zvinotariswa.Mushure mekukwanisa, vhara dhisiki yevhavha uye uvhure imwe magumo kuti utarise kuvuza.Kana zvese zviri zviviri simba revharuvhu uye bvunzo yekuisa chisimbiso ichida kuitwa, unogona kutanga waita bvunzo yesimba, wozodzika pasi kune yekuisa chisimbiso bvunzo kukosha kwakatarwa, tarisa kurongedza. uye gasket;wobva wavhara dhisiki uye uvhure kubuda kuti uone kana nzvimbo yekuisa chisimbiso ichidonha.Kana iyo yevhavhavha simba uye tightness test ichaitwa, iwe unogona kuita bvunzo yesimba kutanga, uye wozodzikisira kune iyo tightness test kukosha, tarisa kurongedza uye gasket;Wobva wavhara dhisiki, vhura iyo yekubuda kunze kuti utarise kana iyo yekuvharisa pamusoro pekudonha.
2. Kudzvinyirira kuedza nzira yegedhi valve
Muedzo wesimba wegedhi vharafuyakafanana neyaglobe valve.Pane nzira mbiri dzekuyedza kusimba kwegedhi mavharuvhu.
(1) Gedhi rinovhurika, kuitira kuti kumanikidza mukati mevhavha kusimuke kune kukosha kwakatarwa;Wobva wavhara gedhi, wobva wangobuda panzegedhi vharafu, chengetedza kana pane kudonha muchisimbiso kumativi ose egedhi kana kuti kupinza zvakananga muyedzo wepakati mukati mepulagi pachivharo chevhavha kune kukosha kwakatarwa, chengetedza chisimbiso kumativi ose egedhi.Nzira iri pamusoro inonzi inonzi intermediate pressure test.Iyi nzira haina kukodzera kuedzwa kwechisimbiso chegedhi mavharuvhuine mazita dhayamita DN32mm pazasi.
(2) Imwe nzira ndeyekuvhura gedhi, kuitira kuti iyo valve test pressure kune yakataurwa kukosha;Wobva wavhara gedhi, vhura imwe mugumo webhofu ndiro, tarisa kana iyo yekuvharisa pamusoro pekudonha.Wobva wadzokera kumashure, dzokorora bvunzo iri pamusoro kusvika wakwanisa.
Muedzo wekusimba pakurongedza uye gasket yepneumaticgedhi vharafuichaitwa isati yasimba bvunzo yegedhi vharafu.
3. Ball valve pressure test method
Pneumaticbhora vharafubvunzo yesimba inofanira kunge iri mubhora rebhora vharafuhafu yakazaruka nyika.
(1) Kuisa chisimbiso bvunzo yeinoyangarara bhora vharafu: Ivhavha iri mu semi-yakazaruka mamiriro, imwe mugumo inounzwa mukati meyedzo yepakati, uye imwe magumo yakavharwa.Shandura bhora kakawanda, vhura magumo akavharwa kana vharuvhu yakavharwa, uye tarisa kuvharika kwekuita kwekuzadza uye gasket panguva imwe chete, uye hapafanirwe kuve nekudonha.Ipapo iyo test medium inounzwa kubva kune imwe mugumo kudzokorora bvunzo iri pamusoro.
(2) Muedzo wekuisa chisimbiso weyakagadziriswa bhora vharafu: bhora rinotenderedzwa kakawanda pasina mutoro pamberi pekuedzwa, uyeyakagadziriswa bhora vharafuyakavharwa, uye svikiro rekuyedza rinounzwa kubva kune imwe mugumo kusvika kune yakataurwa kukosha;iyo gauge yekumanikidza inoshandiswa kutarisa kuvharwa kwekuita kweiyo inlet end.Iko kurongeka kwegauji yekumanikidza ndeye 0.5-1 giredhi, uye huwandu hwacho ndeye 1.6 nguva dzekumanikidza bvunzo.Mukati menguva yakatarwa, hapana kutsika-pasi chiitiko chinokodzera;ipapo test medium inosumwa kubva kune rumwe rutivi kudzokorora bvunzo iri pamusoro.Zvadaro, vharuvhu iri mune semi-yakavhurika mamiriro, ese magumo akavharwa, mukati megomba yakazadzwa nepakati, uye iyo filler uye gasket inotariswa pasi pekumanikidza kwekuyedza pasina kubuda.
(3) Nzira nhatu dzebhora vharafu dzinofanirwa kunge dziri munzvimbo imwe neimwe yekuisa chisimbiso bvunzo.
4. Kudzvinyirira kuedza nzira yekuvhara valve
(1) Kana kuedzwa kwesimba kwevhavhavha yeplug kuchiitwa, iyo yepakati inounzwa kubva kune imwe mugumo, uye dzimwe nzira dzakavharwa.Iyo plug inotenderedzwa kune yega yega nzvimbo yekushanda yekuvhura kuzere nekuita bvunzo.Uye hapana kuvuza kunowanikwa mumuviri wevharuvhu.
(2) Muyedzo yekuisa chisimbiso, jongwe rakatwasuka rinofanirwa kuchengetedza kudzvanywa mugomba rakaenzana neiri munzira, tenderedza plug kuenda kunzvimbo yakavharwa, tarisa kubva kune imwe magumo, wozotenderedza plug ne 180 ° kusvika. dzokorora bvunzo iri pamusoro.Iyo nzira nhatu kana ina-nzira plug valve inofanirwa kuchengetedza kudzvanywa mukamuri yakaenzana neiyo kune imwe magumo echiteshi, uye plug inofanira kutenderedzwa kune yakavharwa chinzvimbo.Kumanikidzwa kunofanira kuunzwa kubva kumucheto wekona uye kuongororwa kubva kune imwe mugumo panguva imwe chete.
Pamberi pe plug valve test bhenji, inotenderwa kuisa dhizaini yeasiri-asidhi dilute lubricating mafuta panzvimbo yekuisa chisimbiso, uye hapana kubuda uye madonhwe emvura akawedzera anowanikwa mukati menguva yakatarwa.Plug valve test time inogona kupfupika, kazhinji zvichienderana nedhayamita yezita re l ~ 3min.
Iyo plug valve yemarasha gasi inofanirwa kuongororwa kusimba kwemhepo pa1.25 nguva yekushanda.
5. Kudzvinyirira kuedza nzira ye butterfly valve
Muedzo wesimba wepneumatic butterfly valveyakafanana neyaglobe valve.Muedzo wekuita chisimbiso webutterfly valveinofanira kusuma svikiro rekuedza kubva kumagumo ekuyerera, ndiro ye butterfly inofanira kuvhurwa, imwe mugumo inofanira kuvharwa, uye jekiseni rejekiseni rinofanira kunge richisvika kune yakakosha kukosha.Mushure mekutarisa kurongedza uye kumwe kuvhara kwekuvhara, vhara ndiro ye butterfly, vhura imwe magumo, Inokodzera kutarisa kuti hapana kuvuza muchisimbiso che butterfly plate.Butterfly valveyekudzora kuyerera haigone kuita chisimbiso chekuita bvunzo.
6. Diaphragm valve pressure test method
Thediaphragm valvebvunzo yesimba inosuma yepakati kubva kune chero kumagumo, inovhura disc, uye imwe magumo yakavharwa.Mushure mokunge muedzo wekuedza uchikwira kune kukosha kwakatarwa, inokwanisa kuona kuti muviri wevhavha uye chivharo chevhavha haina kubuda.Wobva wadzikisa kudzvanywa kune yekuvharisa bvunzo kumanikidza, vhara disc, vhura imwe magumo kuti iongororwe, hapana kuvuza kunokodzera.
7. Kudzvinyirira kuedza nzira yekuongorora valve
Tarisa vharafubvunzo mamiriro: simudza cheki vharafu disc axis mune chinzvimbo perpendicular kune yakatwasuka;iyo chiteshi axis uye disc axis yeswing check valvedzinoda kufambirana nemutsara wakachinjika.
Mukuyedzwa kwesimba, svikiro rekuyedza rinounzwa kubva kumagumo ekupinza kusvika kune yakataurwa kukosha, uye imwe magumo yakavharwa.Inokodzera kuona kuti muviri wevharuvhu uye chivharo chevhavha haina kubuda.
Iyo yekuisa chisimbiso bvunzo inosuma yekuyedza yepakati kubva kumagumo ekubuda, uye inotarisa nzvimbo yekuisa chisimbiso kumagumo ekupinza.Hapana kuvuza pane iyo filler uye gasket inokodzera.
8. Nzira yekuedza nzira yekudzivirira valve
(1) Kuedzwa kwesimba kwevhavha yekudzivirira kwakafanana neyemamwe mavharuvhu, ayo anoedzwa nemvura.Paunenge uchiedza chikamu chezasi chemuviri wevhavha, kudzvinyirirwa kunotangwa kubva kune inlet I = I kupera, uye nzvimbo yekuisa chisimbiso yakavharwa;Paunenge uchiyedza muviri kumusoro uye bhoneti, kudzvanywa kunounzwa kubva pakubuda kweEl end uye mamwe magumo akavharwa.Iyo valve body uye bonnet ichave inokodzera pasina kuvuza mukati menguva yakatarwa.
(2) Tightness bvunzo uye inogara ichimanikidza bvunzo, iyo yakajairwa svikiro inoshandiswa ndeiyi: vharafu yekuchengetedza ine mutsi wakazara seyeyedzo svikiro;Ammonia kana imwe gasi vharafu ine mhepo seyeyedzo svikiro;Ivhavha yemvura nezvimwe zvinwiwa zvisingaore zvinoshandisa mvura senzira yekuyedza.Kune dzimwe nzvimbo dzakakosha dzevharuvhu yekuchengetedza inowanzoshandiswa nitrogen seyeyedzo yepakati.
Chisimbiso bvunzo ine zita rekumanikidza kukosha seyeyedzo yekumanikidza bvunzo, nhamba yenguva haisi pasi pekaviri, munguva yakatarwa hapana kuvuza kunokodzera.Kune nzira mbiri dzekuona kubuda kwemvura: imwe ndeyekusimbisa kubatana kwevhavhavhavhavha, uye kunama bepa rematishu nebhota pane flange yeEl, bepa rematishu rinoputika nekuda kwekudonha, kwete kuputika kune vanokwanisa;Chechipiri ndechekushandisa bhotela kuvhara ndiro yakatetepa yepurasitiki kana mamwe mahwendefa ari muchikamu chepasi chekunze kwekunze, kuzadza mvura kuti iname dhisiki yevharuvhu, uye kutarisa kuti mvura haisi kubvongodza.Nguva dzekuyedza dzekugara kudzvinyirirwa uye kudzoserwa kwevhavhavhavha yekudzivirira hakuzove pasi pe3 nguva.
9. Kudzvinyirira kuedza nzira yekumanikidza kuderedza valve
(1) Muedzo wesimba wevhavha inoderedza kumanikidza inowanzounganidzwa mushure mebvunzo imwe chete, kana mushure mekusangana.Nguva yekuedzwa kwesimba: DN <50mm 1min;Dn65-150mm kureba kupfuura 2min;Iyo DN> 150mm yaive yakareba kupfuura 3 min.
Mushure mokunge mabhero uye zvikamu zvakasungirirwa, 1.5 nguva dzepamusoro-soro mushure mekuvhara kwevhavhavha yakashandiswa, uye kuedza kwesimba kunoitwa nemhepo.
(2) Muedzo wekusimba unoitwa zvinoenderana neiyo chaiyo yekushanda svikiro.Paunenge uchiyedza nemhepo kana mvura, bvunzo ichaitwa pa1.1 nguva yekumanikidza kwezita;The steam test ichaitwa pahupamhi hunobvumirwa kushanda kumanikidziro pakupisa kwekushanda.Musiyano uripo pakati peiyo inlet kudzvanywa uye yekubuda kudzvanywa haizove isingasviki 0.2MPa.Nzira yekuedza ndeiyi: mushure mokunge inlet pressure yaiswa, iyo yekugadziridza screw yevhavha inogadziriswa zvishoma nezvishoma, kuitira kuti kubuda kwemhepo kunogona kushanduka kwakadzikama uye nekuenderera mberi mukati mehupamhi hwepamusoro uye hushoma kukosha, uye hapazovi nekudzika uye kuvhara chiitiko.Kune vharafu yekudzikisa mhepo, kana inlet inopinza yabviswa, vhara vharafu yakachekwa kuseri kwevharuvhu, uye iyo yekubuda shinikizo ndiyo yakakwirira uye yakaderera kukosha.Mukati me2min, kuonga kwekumanikidza kwekubuda kunofanirwa kusangana nezvinodiwa.Panguva imwecheteyo, vhoriyamu yepombi kuseri kwevhavha inokodzera zvinoenderana nezvinodiwa zvinodiwa.Kune mavharuvhu ekudzikisa emvura nemhepo, kana inlet pressure yaiswa uye mhepo yekubuda nayo iri zero, vharafu yekudzikisa inovharwa kuti ivhare bvunzo.Inokodzera kana pasina kuvuza mukati memaminitsi maviri.
Nguva yekutumira: Feb-08-2023