Yakasiyana-siyana valve pressure test nzira

Kazhinji, mavharuvhu eindasitiri haaisirwe kuyedzwa kwesimba kana achishandiswa, asi muviri wevharuvhu uye chivharo chevhavha mushure mekugadzirisa kana muviri wevharuvhu uye chivharo chevhavha chine kukuvara kwekuora kunofanira kuiswa pasi pekuedzwa kwesimba. Kune mavharuvhu ekuchengetedza, iyo yekumanikidza yekuseta uye yekudzosa chigaro kudzvanywa uye mamwe maedzo anofanirwa kuenderana nezvinopihwa zvemirairo yavo nemirairo yakakodzera. Ivhavha inofanira kuiswa pasi pesimba uye kuvhara miedzo mushure mekuiswa. 20% yemavharuvhu epasi-pasi anoongororwa zvisina tsarukano, uye kana asina kukodzera, anofanira kuongororwa 100%; mavharuvhu epakati nepamusoro-soro anofanira kuongororwa 100%. Midhiya inowanzoshandiswa pakuongorora kumanikidzwa kwevharuvhu imvura, mafuta, mhepo, chiutsi, nitrogen, nezvimwewo. Nzira dzekuyedza dzekumanikidza dzemavharuvhu akasiyana siyana eindasitiri dzinosanganisira mavharuvhu epneumatic ndeaya:

1. Kudzvinyirira nzira yekuyedza yebhora mavharuvhu

Muedzo wesimba wepneumatic bhora mavharuvhu unofanirwa kuitwa nebhora hafu-yakavhurika.

① Inoyangarara bhora vharafu yekuisa chisimbiso bvunzo: isa vharafu muhafu-yakavhurika mamiriro, suma svikiro rebvunzo kune imwe mugumo, uye vhara imwe magumo; shandura bhora kakawanda, svinura kuguma kwakavharwa apo valve iri munzvimbo yakavharwa, uye chengetedza kushanda kwekuvhara kwekutakura uye gasket panguva imwe chete. Hapafanirwe kunge paine leakage. Wobva wasuma svikiro rebvunzo kubva kune rumwe rutivi uye dzokorora bvunzo iri pamusoro.

②Fixed ball valve sealing test: Pamberi pekuyedzwa, tenderera bhora kakawanda pasina mutoro, iyo yakagadziriswa bhora valve iri munzvimbo yakavharwa, uye yekuedza yepakati inotangwa kubva kune imwe mugumo kusvika kune yakakosha kukosha; shandisa gauji yekumanikidza kuti utarise kushanda kwekuvharisa kweiyo inlet end, uye shandisa gauge yekumanikidza ine chokwadi che 0.5 kusvika 1 nhanho uye huwandu hwe1.5 nguva yekumanikidza yekuyedza. Mukati menguva yakatarwa, kana pasina kuderera kwekumanikidzwa, inokodzera; wobva wasuma svikiro rebvunzo kubva kune rumwe rutivi uye dzokorora bvunzo iri pamusoro. Zvadaro, vheji iri muhafu-yakazaruka mamiriro, migumo yose yakavharwa, mukati memukati wakazadzwa nepakati, uye kurongedza uye gasket zvinotariswa pasi pekumanikidzwa kwekuedza. Panofanira kunge pasina kuvuza.

③Mavharuvhu matatu ebhora anofanirwa kuongororwa kuti avhare panzvimbo dzakasiyana.

2. Pressure test nzira yekutarisa valve

Chiyero chekuongorora chevhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhamburutaviro:Iyo axis yevhavha disc yekusimudza cheki valve iri panzvimbo perpendicular to the horizontal; the axis of channel and the axis of the valve disc ye swing check valve iri panzvimbo inenge yakaenzana nemutsara wakatsetseka.

Munguva yekuyedzwa kwesimba, svikiro rekuyedza rinounzwa kubva kumagumo ekupinza kusvika kune yakataurwa kukosha, uye imwe magumo yakavharwa. Inokodzera kuona kuti hapana kuvuza mumuviri wevharuvhu uye chivharo chevhavha.

Iyo yekuisa chisimbiso bvunzo inosuma yekuyedza yepakati kubva kumagumo ekubuda, uye inotarisa nzvimbo yekuisa chisimbiso kumagumo ekupinza. Iyo yekurongedza uye gasket inokodzera kana pasina kuvuza.

3. Kudzvinyirira kuedza nzira yekumanikidza kuderedza valve

① Muedzo wesimba wevhavha yekudzikisira yekumanikidza inowanzounganidzwa mushure mebvunzo imwe chete, uye inogona zvakare kuedzwa mushure mekusangana. Simba rekuedza nguva: 1min yeDN <50mm; anopfuura 2min nokuda DN65 ~ 150mm; anopfuura 3min yeDN> 150mm. Mushure mokunge mabhero uye gungano zvakasungirirwa, kuedza kwesimba kunoitwa nemhepo pa 1.5 nguva iyo yakanyanya kudzvinyirira mushure mekumanikidza kuderedza valve.

② Muedzo wekuisa chisimbiso unoitwa zvinoenderana neiyo chaiyo yekushanda svikiro. Paunenge uchiyedza nemhepo kana mvura, bvunzo inoitwa pa1.1 nguva yekumanikidza kwezita; paunenge uchiyedza nemhepo, bvunzo inoitwa pahupamhi hwekushanda hunobvumidzwa pakupisa kwekushanda. Musiyano uripo pakati pekumanikidza kupinza uye yekubuda pressure inodiwa kuti ive isiri pasi pe0.2MPa. Nzira yekuedza ndeyokuti: mushure mokunge inlet pressure yaiswa, zvishoma nezvishoma gadzirisa screw yevhavha kuitira kuti mhepo yekubuda igone kuchinja zvakasimba uye nekuenderera mberi mukati mehupamhi hwepamusoro uye hushoma hunokosha, uye hapanofanira kuva nekudzika kana kuvhara. Pamhepo yekudzikisa mavharuvhu ekudzikisa, kana inlet pressure ichigadziriswa kure, vharafu yekuvharira kuseri kwevhavha yakavharwa, uye iyo yekubuda shinikizo ndiyo yakakwira uye yakaderera kukosha. Mukati maminetsi maviri, kusimuka kwekumanikidza kwayo kubuda kunofanirwa kusangana nezvinodiwa zveTafura 4.176-22. Panguva imwecheteyo, ivhu repombi kuseri kwevhavha rinosangana nezvinodiwa zveTafura 4.18 kune vanokwanisa; yemvura uye mhepo yekudzikisa mavharuvhu, kana inlet kudzvanywa ichigadziriswa uye yekubuda kudzvanywa iri zero, iyo yekumanikidza yekudzikisa vharafu yakavharwa yekuisa chisimbiso bvunzo, uye hapana kuvuza mukati me2 maminetsi inokodzera.

4. Pressure test nzira ye butterfly valve

Muedzo wesimba wepneumatic butterfly valve wakafanana neiya yevharuvhu yekumisa. Iyo yekuisa chisimbiso bvunzo yevhavhavhavhavha inofanira kusuma yepakati yekuyedza kubva pakati inoyerera inopera, butterfly ndiro inofanira kuvhurwa, imwe magumo inofanira kuvharwa, uye kudzvanywa kunofanirwa kubayiwa kune iyo yakakosha kukosha; mushure mekutarisa kuti hapana kuvuza mukurongedza uye zvimwe zvikamu zvekuisa chisimbiso, vhara ndiro yeshavishavi, vhura imwe magumo, uye tarisa kuti hapana kuvuza muchikamu chekuvharisa cheshavishavi kune vanokwanisa. Ivharuvhu yeshavishavi inoshandiswa kudzora kuyerera haidi kuongororwa kuti ishande sei chisimbiso.

5. Kudzvinyirira kuedza nzira yekuvhara valve

① Kana iyo plug valve ichiyedzwa simba, iyo yepakati inounzwa kubva kune imwe mugumo, iyo yese nzira yakavharwa, uye plug inotenderedzwa kune yakazaruka yekushanda zvinzvimbo kuti iedzwe. Muviri wevharuvhu unokodzera kana pasina kuvuza kunowanikwa.

② Panguva yekuyedzwa kwekuvhara, iyo yakatwasuka-kuburikidza nevhavhavhavha inofanirwa kuchengetedza kudzvanywa mugomba kuenzana neiyo mundima, tenderedza plug kuenda kunzvimbo yakavharwa, tarisa kubva kune imwe magumo, wozotenderedza plug 180 ° kudzokorora pamusoro bvunzo; iyo-nzira nhatu kana ina-nzira plug valve inofanirwa kuchengetedza kudzvanywa mugomba kuenzana neiyo kune imwe magumo enzira, tenderedza plug kune yakavharwa chinzvimbo, unza kumanikidza kubva kurudyi-kona kumagumo, uye tarisa kubva mamwe anopera panguva imwe chete.

Usati waedza vharafu yepulagi, inobvumirwa kuisa chidimbu chemafuta asina-acidic matete ekuzora panzvimbo yekuisa chisimbiso. Kana pasina kuvuza kana madonhwe emvura akawedzera anowanikwa mukati menguva yakatarwa, inokodzera. Nguva yekuyedza yevhavhavhavha inogona kupfupika, kazhinji inotsanangurwa semaminetsi 1 kusvika ku3 zvinoenderana nedhayamita yezita.

Iyo plug valve yegesi inofanirwa kuongororwa kusimba kwemhepo pa1.25 nguva yekushanda.

6. Kudzvinyirira nzira yekuedza ye diaphragm mavharuvhu Muedzo wesimba we diaphragm mavharuvhu ndiko kusuma svikiro kubva kumagumo, kuvhura dhisiki yevharuvhu, uye kuvhara imwe magumo. Mushure mokunge muedzo wekuedza uchikwira kune kukosha kwakatarwa, tarisa kana pasina kubuda mukati memuviri wevhavha uye chivharo chevhavha. Wobva wadzikisa kudzvanya kune yekuvharisa test pressure, vhara vharavhavha disc, vhura imwe magumo kuti iongororwe, uye pfuura kana pasina kuvuza.

7. Kudzvinyirira kuedza nzira yekumira mavharuvhu uye throttle mavharuvhu

Pakuyedzwa kwesimba kwemavharuvhu ekumisa uye mavharuvhu anotsikisa, mavharuvhu akaungana anowanzo kuiswa muyedzo yekumanikidza, dhisiki yevharuvhu inovhurwa, yepakati inobaiwa kune kukosha kwakatarwa, uye muviri wevharuvhu nechivharo chevharuvhu zvinotariswa kudikitira uye. leakage. Muedzo wesimba unogonawo kuitwa pachidimbu chimwe chete. Muedzo wekuisa chisimbiso unongoitwa pamavharuvhu ekumisa. Munguva yekuedzwa, tsinde yevhavha yevhavha yekumira iri munzvimbo yakamira, dhisiki yevhavha inovhurwa, uye svikiro rinotangwa kubva kumucheto wepasi wevhavha disc kusvika kune yakakosha kukosha, uye kurongedza uye gasket zvinotariswa; mushure mekupfuura bvunzo, dhisiki yevhavha yakavharwa uye imwe magumo inovhurwa kuti itarise kuvuza. Kana zvose zviri zviviri simba revhavha uye zvisimbiso zviedzo zvichizoitwa, kuedza kwesimba kunogona kuitwa kutanga, uye ipapo kudzvinyirira kunogona kuderedzwa kusvika kune yakatarwa kukosha kwechisimbiso bvunzo, uye kurongedza uye gasket zvinogona kuongororwa; ipapo dhisiki yevharuvhu inogona kuvharwa uye magumo ekubuda anogona kuvhurwa kuti atarise kana nzvimbo yekuisa chisimbiso iri kubuda.


Nguva yekutumira: Zvita-09-2024

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