Isati yaiswa valve, muedzo wesimba revhavha uye kuvhara kwevhavha kunofanira kuitwa pavhavha ye hydraulic test bench. 20% yevhavha yepasi-yakaderera inofanira kuongororwa zvishoma nezvishoma, uye 100% inofanira kuongororwa kana isina kukodzera; 100% yepakati uye yakakwirira-yekumanikidza mavharuvhu inofanira kuongororwa. Midhiya inowanzoshandiswa pakuongorora kudzvanywa kwevharuvhu imvura, mafuta, mhepo, chiutsi, nitrogen, nezvimwewo. Nzira dzekumanikidza dzemavharuvhu eindasitiri dzinosanganisira mavharuvhu epneumatic ndeaya:
Butterfly valve pressure test method
Kuedzwa kwesimba kwevharuvhu yepneumatic butterfly kwakafanana neiyo yevharuvhu yepasi. Muchisimbiso chekuita bvunzo yevhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavharekuyedzo,muyedzo wepakati unofanirwa kuunzwa kubva kumagumo ekuyerera kwepakati, butterfly plate inofanira kuvhurwa, imwe magumo inofanira kuvharwa, uye jekiseni rinodzvanywa rinofanira kusvika pakukosha kwakatarwa; mushure mekutarisa kuti hapana kuvuza pakurongedza uye zvimwe zvisimbiso, vhara ndiro ye butterfly, vhura imwe magumo, uye tarisa vhavhavhavhavha. Hapana kuvuza pachisimbiso cheplate kunokodzera. Butterfly vharuvhu inoshandiswa kudzora kuyerera inogona kusayedzwa kuita chisimbiso.
Pressure test nzira yekutarisa valve
Chengetedza valve yekuongorora mamiriro: iyo axis yerift check valve disc iri panzvimbo yakatarisana kune yakatwasuka; iyo axis ye swing check valve channel uye disc axis iri panzvimbo inenge yakaenzana nemutsara wakatsetseka.
Munguva yekuyedzwa kwesimba, svikiro rekuyedza rinounzwa kubva pakupinza kusvika kune yakataurwa kukosha, uye imwe magumo yakavharwa, uye inokodzera kuona kuti muviri wevhavha uye chivharo chevhavha hazvina kubuda.
Muyedzo yekuisa chisimbiso, svikiro rekuyedza rinounzwa kubva kumagumo ekubuda, uye nzvimbo yekuisa chisimbiso inotariswa kumagumo ekupinza, uye hapana kuvuza pakurongedza uye gasket inokodzera.
Kudzvinyirira kuedza nzira yegedhi valve
Kuedza kwesimba kwevhavha yegedhi kwakafanana neyevhavha yepasi. Pane nzira mbiri dzekuyedza kusimba kwevhavha yegedhi.
①Vhura gedhi kuti uite kuti kumanikidzwa muvhavha kusimuke kune kukosha kwakatarwa; wobva wavhara gedhi, bvisa vharafu yegedhi nekukasira, tarisa kana paine kuvuza pazvisimbiso pamativi ese egedhi, kana kupinza zvakananga muyedzo wepakati mukati mepulagi pachivharo chevhavha kune kukosha kwakatarwa, tarisa zvisimbiso pane ese ari maviri. kumativi egedhi. Nzira iri pamusoro inonzi inonzi intermediate pressure test. Iyi nzira haifanirwe kushandiswa pakuvharisa bvunzo pamavharuvhu egedhi ane dhayamita rezita pazasi peDN32mm.
②Imwe nzira ndeyekuvhura gedhi kuita kuti vheji yekuedza kukwira kune iyo yakataurwa kukosha; wovhara gedhi, vhura imwe mugumo wendiro yebofu, uye tarisa kana nzvimbo yekuvharisa iri kubuda. Wobva wadzoka wodzokorora bvunzo iri pamusoro kusvika yakwana.
Muedzo wekusimba wekurongedza uye gasket yepneumatic gedhi valve ichaitwa pamberi pekuomerwa kwekuyedza kwegedhi.
Kudzvinyirira kuedza nzira yekumanikidza kuderedza valve
①Muedzo wesimba wevhavha yekuderedza kudzvinyirira inowanzounganidzwa mushure meyedzo-yechidimbu bvunzo, uye inogona zvakare kuedzwa mushure mekusangana. Nguva yekuedzwa kwesimba: 1min yeDN <50mm; anopfuura 2min yeDN65～150mm; anopfuura 3min yeDN> 150mm.
Mushure mokunge mabhero uye zvikamu zvakasungirirwa, shandisa 1.5 nguva yakawanda yekumanikidzika kwevhavha yekuderedza, uye ita muedzo wesimba nemhepo.
②Muedzo wekudzivirira mhepo uchaitwa maererano nekushanda chaiko. Paunenge uchiyedza nemhepo kana mvura, edza pa 1.1 nguva yekumanikidza kwezita; paunenge uchiyedza nemhepo, shandisa iyo yakanyanya kumanikidzwa kushanda inobvumirwa pasi pekushisa kwekushanda. Musiyano uripo pakati pekumanikidza kupinza uye yekubuda pressure inodiwa kuti ive isiri pasi pe0.2MPa. Iyo nzira yekuyedza ndeye: mushure meiyo inlet kudzvanywa kwagadziriswa, zvishoma nezvishoma gadzirisa screw yevhavha, kuitira kuti iyo yekubuda shinikizo inogona kuchinja zvine hunyoro uye nekuenderera mukati mehupamhi hwepamusoro uye hushoma kukosha, pasina kudzika kana jamming. Kune iyo steam pressure yekudzikisa valve, kana inlet pressure ichigadziriswa kure, vharafu inovharwa mushure mekuvharwa kwevhavha, uye iyo yekubuda shinikizo ndiyo yakakwirira uye yakaderera kukosha. Mukati me2min, kuwedzera kwekumanikidzwa kwekubuda kunofanira kusangana nezvinodiwa muTebhu 4.176-22. Panguva imwecheteyo, pombi kuseri kwevhavha inofanira kuva Inzwi rinopindirana nezvinodiwa muTebhu 4.18 kuti ive yakakodzera; yemvura uye mhepo yekudzikisa mavharuvhu, kana inlet kudzvanywa yaiswa uye yekubuda kudzvanywa iri zero, iyo yekumanikidza yekudzikisa valve yakavharwa kuti iongororwe bvunzo, uye hapana kuvuza mukati me2 maminetsi anokodzera.
Pressure test nzira yeglobe valve uye throttle valve
Kuyedzo yesimba reglobe valve uye throttle valve, iyo yakaunganidzwa vharafu inowanzoiswa muyedzo yekumanikidza furemu, dhisiki yevharuvhu inovhurwa, yepakati inobaiwa kune kukosha kwakatarwa, uye muviri wevharuvhu nevhavhavhavha inotariswa kuti idiki uye. leakage. Muedzo wesimba unogonawo kuitwa pachidimbu chimwe chete. Muedzo wekusimba ndeyevhavha yekuvhara chete. Munguva yekuedzwa, tsinde yevhavha yevhavha yeglobe iri munzvimbo yakatwasuka, dhisiki yevhavha inovhurwa, iyo yepakati inotangwa kubva kumucheto kwepasi kwevhavha disc kusvika kune yakatarwa kukosha, uye kurongedza uye gasket zvinotariswa; mushure mekupfuura bvunzo, dhisiki yevhavha yakavharwa, uye imwe magumo inovhurwa kuti itarise kana pane kuvuza. Kana iyo simba uye kuomeswa kuedza kwevhavha kuchizoitwa, kuedza kwesimba kunogona kuitwa kutanga, ipapo kudzvinyirira kunoderedzwa kusvika kune yakatsanangurwa kukosha kwekuoma kwekuedza, uye kurongedza uye gasket zvinotariswa; ipapo dhisiki yevhavha yakavharwa, uye magumo ekubuda anovhurwa kuti atarise kana nzvimbo yekuvharisa iri kubuda.
Ball valve pressure test method
Muedzo wesimba wepneumatic ball valve unofanirwa kuitwa muhafu-yakavhurika mamiriro evhavha yebhora.
①Inoyangarara bhora vharafu chisimbiso bvunzo: isa vharafu muhafu-yakavhurika mamiriro, suma svikiro rebvunzo kune imwe mugumo, uye vhara imwe magumo; tenderedza bhora kakawanda, vhura magumo akavharwa kana vharuvhu iri munzvimbo yakavharwa, uye tarisa kuvharika kwekuita pakurongedza uye gasket panguva imwe chete. Hapafanire kunge paine leakage. Muyedzo webvunzo unozosumwa kubva kune rumwe rutivi uye bvunzo iri pamusoro inodzokororwa.
②Kuisa chisimbiso chevhavha yakagadziriswa yebhora: pamberi pekuedzwa, shandura bhora kakawanda pasina mutoro, iyo yakagadziriswa bhora valve iri munzvimbo yakavharwa, uye chiyero chekuedza chinotangwa kubva kune imwe mugumo kusvika kune yakakosha kukosha; kuvharwa kwechisimbiso chekuguma kwekutanga kunotariswa nejini yekumanikidza, uye kururamisa kweyeji yekumanikidza ndeye 0 .5 kusvika ku1, chiyero ndeye 1.6 nguva yekuedza. Mukati menguva yakatarwa, kana pasina depressurization phenomenon, inokodzera; wobva wasuma svikiro rebvunzo kubva kune rumwe rutivi, uye dzokorora bvunzo iri pamusoro. Zvadaro, isa vheji muhafu-yakazaruka mamiriro, vhara magumo ose, uye uzadze mukati memukati nepakati. Tarisa kurongedza uye gasket pasi pekumanikidzwa kwekuyedza, uye hapafanirwe kunge paine kuvuza.
③Iyo yenzira nhatu bhora vharafu ichayedzwa kusimba pane imwe neimwe nzvimbo.
Nguva yekutumira: Mar-02-2022
