Chidule chachidule cha ma valve a zipata

1 Mfundo yogwirira ntchito ndi ntchito ya valve yachipata: Vavu yachipata ndi ya mtundu wa valve block, yomwe nthawi zambiri imayikidwa pa chitoliro chokhala ndi m'mimba mwake kuposa 100mm kuti atseke kapena kulumikiza kutuluka kwapakati mu chitoliro. Popeza disc ndi mbale yachipata, nthawi zambiri imatchedwa valve valve. Valve yachipata imakhala ndi ubwino wocheperako mphamvu yosinthira komanso kukana koyenda. Komabe, malo osindikizira ndi osavuta kuvala ndi kutayikira, sitiroko yotsegulira ndi yayikulu, ndipo kukonza kumakhala kovuta. Valve yachipata sichingagwiritsidwe ntchito ngati valavu yowongolera. Iyenera kukhala pamalo otseguka kapena otsekedwa kwathunthu. Mfundo yogwira ntchito ndi: pamene valavu yachipata imatsekedwa, tsinde limayenda pansi malinga ndi kutalika kwa chipata chosindikizira valavu ndi malo osindikizira a valve, omwe ali osalala, osasunthika komanso osasinthasintha. Amakwanirana wina ndi mnzake kuti sing'angayo isadutse, ndikudalira mphero yapamwamba kuti iwonjezere kusindikiza. Kutseka kwake kumayenda molunjika pamzere wapakati. Pali mitundu yambiri ya ma valve a pachipata, omwe amatha kugawidwa mumtundu wa wedge ndi mtundu wofanana. Mtundu uliwonse umagawidwa kukhala nkhosa yamphongo imodzi ndi nkhosa yamphongo iwiri. 2: Thupi la valve pachipata limatenga mawonekedwe odzisindikiza okha. Njira yolumikizira chivundikiro cha valve ndi thupi la valavu ndikugwiritsa ntchito kuthamanga kwapakati kwa sing'anga mu valavu kukakamiza kusindikiza kusindikiza kuti akwaniritse cholinga chosindikiza. Kuyika kwa asbestos wothamanga kwambiri ndi waya wamkuwa kumagwiritsidwa ntchito kusindikiza valavu yachipata. Chipata valavu dongosolo makamaka wapangidwa ndi valavu thupi, bonati, chimango, tsinde, kumanzere ndi kumanja valavu chimbale, kunyamula kusindikiza chipangizo, etc. The valavu thupi chuma amagawidwa mu mpweya zitsulo ndi aloyi zitsulo malinga ndi kuthamanga ndi kutentha kwa sing'anga payipi. . Nthawi zambiri amaikidwa mu valavu ya superheated dongosolo nthunzi, t> 450 ℃, valavu thupi amapangidwa ndi zinthu aloyi, monga kukatentha mpweya valavu, etc. Ngati valavu anaika mu dongosolo madzi kapena sing'anga kutentha T ≤ 450 ℃, valavu thupi zakuthupi ndi carbon steel. Mavavu a pachipata nthawi zambiri amaikidwa pamapaipi amadzi a nthunzi ndi DN ≥ 100mm. Pali mitundu itatu ya ma diameter mwadzina a chipata valavu mu gawo loyamba wgz1045 / 17.5-1 boiler ku Zhangshan, mwachitsanzo DN300, dnl25 ndi dnl00.