Kushanda uye Kugadzirisa Manual-Gate Mavharuvhu

3. Kuchengeta & Maintenance & Installation & Operation
3.1 Kuchengeta & Kugadzirisa
3.1.1 Mavharuvhu anofanira kuchengetwa ari mukati memba.Iyo cavity inoguma inofanira kuvharwa neplug.
3.1.2 Periodic inspection and clearance inodiwa kwenguva yakareba yakachengetwa mavharuvhu, kunyanya pakuvhara nzvimbo yekuchenesa.Hapana kukanganisa kunobvumirwa.Oiri yekuputira inokumbirwa kudzivirira ngura yekugadzira machining pamusoro.
3.1.3 Nezvevhavhavha yekuchengetedza mwedzi inopfuura 18, miedzo inodiwa musati waiswa valve uye rekodha chigumisiro.
3.1.4 Mavharuvhu anofanirwa kuongororwa nguva nenguva uye kuchengetedzwa mushure mekuiswa.Pfungwa huru ndedzinotevera:
1)Kuisa chisimbiso pamusoro
2) Dzinde uye Stem nut
3）Kurongedza
4）Kucheneswa kwemukati kwepasi kweMuviri neBonnet.
3.2 Kuiswa
3.2.1 Ongororazve mavharuvhu (Type, DN, Rating, Material) izvo zvinoenderana nemakange akumbirwa nepipeline system.
3.2.2 Kucheneswa kwakazara kwegomba uye nzvimbo yakavharwa inokumbirwa pamberi pekuisa valve.
3.2.3 Ita shuwa kuti mabhaudhi akasimba usati waiswa.
3.2.4 Ita shuwa kuti kurongedza kwakasimba usati waisa.Zvisinei, haifaniri kukanganisa kufamba kwe stem.
3.2.5 Nzvimbo yevharuvhu inofanirwa kuve yakanakira kuongororwa uye kushanda.Horizontal kune pipeline inosarudzwa.Chengetedza vhiri reruoko kumusoro uye dzinde rakamira.
3.2.6 Kuvhara-vharavhavhavha, haina kukodzera kuiswa mumamiriro ekushanda kwepamusoro.Dzinde rinofanira kudziviswa kuti rikuvadzwe.
3.2.7 Kune Socket welding valve, kutarisa kunokumbirwa panguva yekubatanidza vharafu sezvinotevera:
1) Welder inofanirwa kuve yakasimbiswa.
2) Welding process parameter inofanirwa kuenderana nehukama welding material quality certificate.
3）Kuzadza zvinhu zvewelding mutsara, iyo kemikari uye mashandiro emuchina pamwe chete ne-anti-corrosion inofanira kufanana nemuviri wevabereki zvinhu.
3.2.8 Kuiswa kwevhavha kunofanirwa kudzivirira kudzvanywa kwepamusoro kubva kune zvakabatanidzwa kana pombi.
3.2.9 Mushure mekuisa, mavharuvhu anofanirwa kuvhurwa panguva yepipeline pressure test.
3.2.10 Support Point: kana pombi yakasimba zvakakwana kutsigira uremu hwevharuvhu uye torque yekushandisa, nzvimbo yekutsigira haina kukumbirwa.Zvikasadaro zvinodiwa.
3.2.11 Kusimudza: Kusimudza vhiri remaoko hakubvumidzwe kune mavharuvhu.
3.3 Kushanda uye Kushandisa
3.3.1 Mavharuvhu egedhi anofanirwa kuvhurika zvachose kana kuvharwa panguva yekushandiswa kudzivirira chigaro chekuisa chisimbiso mhete uye disc surface inokonzerwa nekumhanya kwepakati.Ivo havagone kumhan'arirwa nekuda kwekuyerera.
3.3.2 Gumbo remaoko rinofanira kushandiswa kutsiva zvimwe zviridzwa kuvhura kana kuvhara mavharuvhu
3.3.3 Munguva yekushisa kwesevhisi inobvumidzwa, kudzvanywa kwepakarepo kunofanirwa kunge kwakadzikira pane kudzvanywa maererano neASME B16.34
3.3.4 Hapana kukanganisa kana kurova kunobvumirwa panguva yekufambisa valve, kuisa uye kushanda.
3.3.5 Kuyera chiridzwa chekutarisa kuyerera kusina kugadzikana kunokumbirwa kudzora uye kubvisa iyo decomposition factor kudzivirira kukuvara kwevharuvhu uye kubuda.
3.3.6 Cold condensation ichapesvedzera mashandiro evharuvhu, uye midziyo yekuyera inofanira kushandiswa kuderedza kuyerera kwekushisa kana kutsiva vharafu.
3.3.7 Pamvura inozvipisa, shandisa midziyo yekuyeresa yakakodzera kuvimbisa ambient uye kushanda nesimba kusapfuudza nzvimbo yekuzvibatisa yega (kunyanya cherechedza kupenya kwezuva kana moto wekunze).
3.3.8 Kana paine mvura ine njodzi, yakadai sezvinoputika, zvinopisa, zvine muchetura, zvinogadzirwa neoxidation, hazvibvumidzwe kutsiva kurongedza pasi pekumanikidzwa.Zvakadaro, muchiitiko chekukurumidzira, hazvikurudzirwe kutsiva kurongedza pasi pekumanikidzwa (kunyangwe vharafu ine basa rakadaro).
3.3.9 Iva nechokwadi chokuti mvura haina kusvibiswa, iyo inokanganisa kushanda kwevharuvhu, kwete kusanganisira marara akaoma, kana zvisina kudaro midziyo yekuyera yakakodzera inofanira kushandiswa kubvisa tsvina uye yakaoma yakaoma, kana kuitsiva nemamwe marudzi evhavha.
3.3.10 Inoshanda tembiricha yekushanda.

3.3.11 Iva nechokwadi chokuti zvinhu zvemuviri wevharuvhu wakakodzera kushandiswa mukusaora uye ngura inodzivirira mvura.

3.3.12 Munguva yebasa, tarisa kushanda kwekuvharwa sekuenderana netafura iri pazasi:

3.3.13 Gara uchitarisa kusapfeka kwemari yekugara, kurongedza kuchembera uye kukuvara.
3.3.14 Mushure mekugadzirisa, unganidza zvakare uye gadzirisa valve, wozoedza kushanda nesimba uye uite zvinyorwa.