Mitundu ya Check Valves

Onani valavu, yomwe imadziwikanso kuti valavu ya njira imodzi kapena valavu yoyendera, ndi ya gulu la valve automatic, ndipo ntchito yake ndikuletsa kubwereranso kwa sing'anga mu payipi.Valve yapansi yomwe imagwiritsidwa ntchito poyamwa pampu ndi mtundu wa valve yowunika.Chimbale cha valve yotsegula chimatsegulidwa pansi pa mphamvu yamadzimadzi, ndipo madzi amadzimadzi amachokera kumalo olowera kupita kumalo.Kuthamanga kolowera kukakhala kotsika kuposa kutulutsa, chotchinga cha valve chimangotsekeka pansi pa kusintha kwa kuthamanga kwamadzi, mphamvu yokoka ndi zinthu zina kuti madzi asabwererenso.

Magulu a ma cheke ma valve amatha kugawidwa m'mitundu yosiyanasiyana malinga ndi zinthu, ntchito ndi kapangidwe.Zotsatirazi zikuwonetsa mitundu ya ma cheki ma valve kuchokera kuzinthu zitatuzi.

1. Kugawa ndi zinthu

1) Valavu yowunika yachitsulo

2) Valovu yoyang'ana mkuwa

3) Valovu yachitsulo chosapanga dzimbiri

2. Gulu ndi ntchito

1) Cheke valve chete

2) Valve yowunika mpira

Valve yoyang'ana mpira imatchedwanso valavu yoyendera madzi amadzi.Thupi la valve limagwiritsa ntchito njira yonse, yomwe ili ndi ubwino wa kuyenda kwakukulu ndi kutsika kochepa.Mpira umagwiritsidwa ntchito ngati valavu chimbale, amene ali oyenera mafakitale ndi zoweta zimbudzi maukonde chitoliro ndi mkulu mamasukidwe akayendedwe ndi zolimba inaimitsidwa.

3. Kugawa ndi kamangidwe

1) Kwezani valavu yowunika

2) Chovala chowongolera cha swing

3) Vavu yoyang'ana gulugufe

Kapangidwe ka valavu yonyamula katundu nthawi zambiri imakhala yofanana ndi ya valavu yapadziko lonse lapansi.Vavu chimbale chimayenda mmwamba ndi pansi motsatira mzere mu tchanelo, ndipo zochita zake ndi zodalirika, koma kukana madzimadzi ndi lalikulu, ndipo ndi oyenera nthawi ndi diameters ang'onoang'ono.Nyamulani valavu cheke agawidwa mitundu iwiri: yopingasa mtundu ndi ofukula mtundu.Mavavu owongolera molunjika amatha kuikidwa pamapaipi opingasa, pomwe ma valve owoneka ndi ma valve pansi nthawi zambiri amayikidwa pamapaipi oyima, ndipo sing'angayo imayenda kuchokera pansi kupita pamwamba.

The disc ya swing check valve imazungulira mozungulira mozungulira.Kukaniza kwake kwamadzimadzi nthawi zambiri kumakhala kocheperako poyerekeza ndi valavu yowunikira, ndipo ndi yoyenera nthawi zokhala ndi mainchesi akulu.Malinga ndi kuchuluka kwa ma disks, valavu yosinthira imatha kugawidwa m'mitundu itatu: mtundu wa swing single disk, mtundu wamitundu iwiri yopindika ndi mitundu yambiri ya swing.Single flap swing check valve nthawi zambiri ndi yoyenera pakanthawi kochepa.Ngati valavu imodzi yokha yogwiritsira ntchito valavu imagwiritsidwa ntchito pamapaipi akuluakulu, kuti muchepetse kuthamanga kwa nyundo ya madzi, ndi bwino kugwiritsa ntchito valve yotseka pang'onopang'ono yomwe ingachepetse kuthamanga kwa nyundo ya madzi.valavu yoyang'ana pawiri yopindika ndi yoyenera mapaipi akulu ndi apakatikati.Wafer double flap swing check valve ndi yaying'ono mwamapangidwe komanso yopepuka kulemera kwake, ndipo ndi mtundu wa valavu yoyendera yomwe ikukula mwachangu.Mipikisano lobe swing cheke valavu ndi oyenera awiri awiri mapaipi.

Kuyika kwa valavu ya swing cheki sikuli malire, nthawi zambiri imayikidwa paipi yopingasa, koma imatha kuikidwa papaipi yowongoka kapena payipi yotaya.

Mapangidwe a valavu ya gulugufe amafanana ndi valavu ya gulugufe.Mapangidwe ake ndi osavuta, kukana koyenda kumakhala kochepa, komanso kuthamanga kwa nyundo yamadzi kumakhala kochepa.

Njira zolumikizira za valavu zimaphatikizira kulumikizana kwa clip, kulumikizana kwa flange, kulumikizana kwa ulusi, kulumikiza matako / zitsulo zowotcherera, etc. Kutentha koyenera ndi -196 ℃ ~ 540 ℃.Vavu thupi zipangizo ndi WCB, CF8 (304), CF3 (304L), CF8M (316), CF3M (316L).Sankhani zida zosiyanasiyana zamitundu yosiyanasiyana.Chongani valavu angagwiritsidwe ntchito madzi, nthunzi, mafuta, asidi nitric, asidi acetic, sing'anga oxidizing, urea ndi zina.

Mukayika valavu yoyang'ana, chidwi chapadera chiyenera kuperekedwa kumayendedwe a sing'anga, ndipo kayendedwe kabwino ka sing'anga kuyenera kukhala kogwirizana ndi momwe muvi wasonyezera pa thupi la valavu, mwinamwake kutuluka kwapakati pa sing'anga kudzakhala koyenera. kudulidwa.Valavu yapansi iyenera kuikidwa kumapeto kwa mzere woyamwa wa mpope.

Vavu yoyang'ana ikatsekedwa, kuthamanga kwa nyundo yamadzi kumapangidwa mu payipi, zomwe zidzawononge valavu, mapaipi kapena zida pazovuta kwambiri, makamaka mapaipi amkamwa akulu kapena mapaipi othamanga kwambiri, chonde tcherani khutu.