Vavu kalozera

Kodi valavu ndi chiyani?

Valavu ndi chida chamakina chomwe chimayang'anira kuthamanga ndi kukakamiza mu dongosolo kapena njira. Ndizo zigawo zazikuluzikulu zamapayipi operekera madzi, gasi, nthunzi, matope, ndi zina zambiri.

Perekani mavavu osiyanasiyana: valavu yampata, valavu yoyimitsa, valavu yamapulagi, valavu ya mpira, valavu ya gulugufe, valavu yowunika, valavu ya diaphragm, valavu yotsina, valavu yothandizira, valavu yowongolera, ndi zina. Pali mitundu yambiri yamtundu uliwonse, iliyonse ili ndi mitundu ntchito ndi ntchito. Ma valves ena amadzipangira okha, pomwe ena amagwiritsidwa ntchito pamanja kapena ndi ma actuator kapena pneumatic kapena hydraulic.

Ntchito ya valve ndi iyi:

imani ndikuyamba ntchitoyi

kuchepetsa kapena kuwonjezera kutuluka

mayendedwe olowera

sungani kayendetsedwe kake kapena kukakamiza

makina opopera kuti atulutse zovuta zina

Pali mitundu yambiri yamagetsi, mitundu ndi mitundu, yomwe ili ndi mitundu ingapo yamafunsidwe. Zonsezi zimagwira chimodzi kapena zingapo zomwe zatchulidwa pamwambapa. Mavavu ndi zinthu zokwera mtengo, ndikofunikira kutchula valavu yoyenera ya ntchitoyi, ndipo valavu iyenera kupangidwa ndi zinthu zolondola zamadzimadzi.

Mosasamala mtundu, ma valve onse ali ndi zinthu zotsatirazi: thupi, bonnet, chepetsa (zamkati mkati), wogwiritsira ntchito ndi kulongedza. Zida zoyambira za valavu zikuwonetsedwa pachithunzipa.

Valve ndi chida chomwe chimagwiritsidwa ntchito kuwongolera mayendedwe, kuthamanga ndi kutuluka kwa madzi amadzimadzi. Ndi chida chomwe chimapangitsa sing'anga (madzi, gasi, ufa) kuyenda kapena kuyima mapaipi ndi zida ndipo amatha kuyendetsa kayendedwe kake.

Valavu ndiye gawo loyendetsa mayendedwe amapaipi, omwe amagwiritsidwa ntchito kusintha gawo la mayendedwe ndi mayendedwe apakatikati. Ili ndi ntchito yosokoneza, kudula, kupindika, cheke, shunt kapena kusefukira kwa mpumulo. Pali mitundu yambiri ndi mafotokozedwe a mavavu owongolera madzimadzi, kuyambira pa valve yosavuta yoyimitsa mpaka makina ovuta kwambiri kuwongolera. Makulidwe amadzimadzi amadzimadzi amachokera ku valavu yaying'ono kwambiri yazida kupita ku valavu yama payipi yamafakitale yomwe ili ndi m'mimba mwake mpaka 10m. Itha kugwiritsidwa ntchito kuwongolera kuyenda kwa madzi, nthunzi, mafuta, gasi, matope, media yowononga, chitsulo chamadzimadzi komanso madzi amadzimadzi. Kupanikizika kogwira ntchito kwa valavu kumatha kukhala kuchokera ku 0.0013mpa mpaka 1000MPa, ndipo kutentha komwe kumagwira kungakhale kuchokera ku c-270 ℃ mpaka 1430 ℃.

Valavu imatha kuyang'aniridwa ndi mitundu ingapo yamagalimoto, monga manual, magetsi, ma hydraulic, pneumatic, chopangira mphamvu, zamagetsi, zamagetsi, zamagetsi zamagetsi, pneumatic, spur gear, bevel gear drive, ndi zina, Valavu imagwira ntchito molingana ndi zomwe zidakonzedweratu zofunikira, kapena kungotsegula kapena kutseka osadalira chizindikiritso. Valavu imadalira kuyendetsa kapena njira yodziyimira yokha kuti mbali zotsegulira ndi zotsekera zikwere mmwamba ndi pansi, kutsetsereka, kusinthana kapena kusinthasintha, kuti musinthe kukula kwa mayendedwe ake kuti muzindikire momwe amagwirira ntchito.