Ma valve a zipata amapangidwa kuti azitsegula kapena kutsekedwa kwathunthu. Amayikidwa m'mapaipi ngati ma valve odzipatula, ndipo sayenera kugwiritsidwa ntchito ngati ma valve owongolera kapena owongolera. Kugwira ntchito kwa valve yachipata kumachitika motsatira njira yotseka (CTC) kapena molunjika kuti mutsegule (CTO) kuzungulira kwa tsinde. Pogwiritsira ntchito tsinde la valve, chipata chimayenda mmwamba- kapena pansi pa gawo la ulusi la tsinde.

Ma valve a zipata nthawi zambiri amagwiritsidwa ntchito ngati kuchepa kwapang'onopang'ono komanso kutulutsa kwaulere kumafunika. Ikatsegulidwa kwathunthu, valavu yachipata imakhalabe chotchinga panjira yomwe imapangitsa kuti pakhale kutsika kwapang'onopang'ono, ndipo kapangidwe kameneka kamapangitsa kugwiritsa ntchito nkhumba yoyeretsa chitoliro. Valve yachipata ndi multiturn valve kutanthauza kuti ntchito ya valve ikuchitika pogwiritsa ntchito tsinde la ulusi. Monga valavu iyenera kutembenuka kangapo kuti ichoke kumalo otseguka kupita kumalo otsekedwa, kugwira ntchito pang'onopang'ono kumalepheretsanso zotsatira za nyundo ya madzi.

Mavavu a pachipata atha kugwiritsidwa ntchito popanga madzi ambiri. ma valve pachipata ndi oyenera pansi pazifukwa zotsatirazi:

• Madzi amchere, madzi oipa ndi zakumwa zopanda ndale: kutentha pakati pa -20 ndi +70 °C, kuthamanga kwa kuthamanga kwa 5 m / s ndi kuthamanga kwa ma bar 16.
• Gasi: kutentha kwapakati pa -20 ndi +60 ° C, kuthamanga kwa 20 m / s ndi kuthamanga kwa ma bar 16.

Mavavu a zipata zofananira ndi ma wedge

Mavavu a pachipata amatha kugawidwa m'mitundu iwiri ikuluikulu: yofanana ndi yofanana ndi mphero. Ma valve a zipata zofananira amagwiritsa ntchito chipata chathyathyathya pakati pa mipando iwiri yofananira, ndipo mtundu wotchuka ndi valavu ya mpeni yopangidwa ndi nsonga yakuthwa pansi pa chipata. Mavavu a zipata zooneka ngati mphero amagwiritsa ntchito mipando iwiri yokhotakhota ndi chipata chosiyana pang'ono.

Chitsulo chokhala pansi vs mavavu okhazikika okhala pachipata

Mavavu a zipata okhala ndi zitsulo zokhala ndi zitsulo ankagwiritsidwa ntchito kwambiri pamsika. Mapangidwe a conical wedge ndi makina osindikizira ang'onoang'ono a chitsulo chokhala ndi chitsulo amafunikira kuti valavu ikhale pansi kuti valavu ikhale yotseka. Apa, mchenga ndi miyala zimayikidwa mu bowo. Dongosolo la chitoliro silidzakhala lopanda zodetsedwa mosasamala kanthu kuti chitolirocho chimakankhidwa bwino bwanji pakuyika kapena kukonza. Motero mphero yachitsulo iliyonse pamapeto pake imataya mphamvu yake yoti ikhale yolimba.

Valavu yokhala ndi chipata chokhazikika imakhala ndi valavu pansi pomwe imalola kupita kwaulere mchenga ndi miyala mu valavu. Ngati zonyansa zidutsa pamene valve ikutseka, pamwamba pa mphira idzatseka kuzungulira zonyansa pamene valve yatsekedwa. Gulu la mphira lapamwamba kwambiri limatenga zonyansa pamene valavu imatseka, ndipo zonyansa zidzachotsedwa pamene valavu idzatsegulidwanso. Malo a mphira adzapezanso mawonekedwe ake oyambirira kuti atseke chosindikizira chotsika.

Ma valve ambiri a zipata amakhala okhazikika, komabe ma valve okhala ndi zitsulo amakhalabe akufunsidwabe m'misika ina, kotero akadali gawo lathu loperekera madzi ndi kuthira madzi oyipa.