Chongani valavu, amatchedwanso vavu cheke, valavu umodzi otuluka, valavu yang'anani kapena valavu yowunika, udindo wake ndikuwonetsetsa kuti sing'anga yolowera payipi yopanda kubwerera. Kutsegula ndi kutseka kwa valavu kutengera kutuluka kwa sing'anga kuti mutsegule ndikutseka. Chongani vavu ndi mankhwala basi valavu, cheke vavu yekha amalola sing'anga kuyenda mbali imodzi ya payipi ntchito, kuteteza chodabwitsa cha backflow sing'anga. Ili ndi mapulogalamu osiyanasiyana, ndipo itha kugwiritsidwa ntchito pama calibers akulu ndi ang'ono, media zosiyanasiyana ndi station yamagetsi yamagetsi yamagetsi.
Mfundo ya cheke valavu: cheke valavu yotseguka imatanthawuza kudalira kutseguka kwapakatikati kuti mutsegule disc, chifukwa chomwecho kutsetsereka kwapakatikati kukalimbikitsa chimbale ndikutseka, cheke valavu imadziwikanso ngati valavu yoyang'ana, njira imodzi , valavu yotsika kumbuyo ndi valavu yotsatsira. Ntchito yayikulu ya valavu ndikuteteza kutsika kwa sing'anga, kuteteza kusintha kwa pampu ndi mota woyendetsa komanso kutulutsa kwa sing'anga. Amagwiritsidwanso ntchito poteteza chitetezo munjira zothandizira pomwe kukakamizidwa kukhoza kupitirira kuthamanga kwadongosolo.
Chongani gulu la ma valve: cheke valavu imagwiritsidwa ntchito kwambiri poletsa kugwiritsa ntchito media kuti ibwererenso mu payipi. Valavu yakumunsi ndi valavu ya bakha nawonso ndiomwe amayendera ma valavu.
Chongani vavu akhoza kugawidwa mu mtundu Nyamulani, mtundu kugwedezeka, chimbale mtundu atatu:
Mtundu wokweza wagawidwa m'mitundu iwiri yopingasa komanso yopingasa, dongosolo lokweza likuyenda molunjika.
Zitsanzo:
(1) Nyamulani valavu yoyang'ana mwakachetechete imagwiritsidwa ntchito popezera madzi ndi ukadaulo waukadaulo wa payipi; Nthawi yomweyo, imatha kukhazikitsidwa potulutsa mpope, ndipo netiweki yolimbirana yomwe ili ndi kuthamanga kwambiri (PN2.5Mpa) ndichinthu chofunikira kwambiri pamadzi osungira madzi.
(2) Valavu yonyamula ma silencer oyenera ndiyoyenera kukwera kwa madzi ndi nyumba zonyamula komanso zotulutsa pampu, sizoyenera mapaipi azimbudzi.
(3) Ozungulira vavu cheke ndi oyenera pamadzi, ngalande, zimbudzi mpope, makamaka zimbudzi ndi sludge dongosolo.
Mtundu wa swing wagawidwa mu mtundu wa valavu imodzi, mtundu wama valve awiri komanso ma valve angapo. Makina amtundu wa swing amasankhidwa malinga ndi malo ozungulira mphamvu yokoka.
Zitsanzo:
(1) Valavu yokhotakhota yosankha ya mphira imagwiritsidwa ntchito mumayendedwe amatauni am'matauni, omwe sioyenera mapaipi azimbudzi okhala ndi matope ambiri.
(2) Valavu yokhotakhota ya valavu yomwe imagwiritsidwa ntchito kwambiri imagwiritsidwa ntchito kwambiri, imatha kuikidwa m'madzi ndi ngalande, mafuta, mankhwala, zitsulo, mafakitale ndi mapaipi ena, nthawi zoyenerera zoletsa malo.
Kapangidwe kazakudya ndi kowongoka.
Chitsanzo:
(1) Chimbale iwiri chimbale vavu cheke zimagwiritsa ntchito pa mkulu-nyamuka payipi madzi, munali TV zikuwononga ndi zimbudzi ntchito maukonde chitoliro madzimadzi.
(2) Valavu yokhotakhota ya valavu yomwe imagwiritsidwa ntchito kwambiri imagwiritsidwa ntchito kwambiri, imatha kuikidwa m'madzi ndi ngalande, mafuta, mankhwala, zitsulo, mafakitale ndi mapaipi ena, nthawi zoyenerera zoletsa malo.
Chopingasa valavu ndi choyenera kusambira, ngalande, mpope wa zimbudzi, makamaka zimbudzi ndi sludge system.
Nthawi yamakalata: Mar-24-2021