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Membala aliyense wochokera ku gulu lathu lalikulu lopeza phindu logwira ntchito amayamikira zosowa za makasitomala ndi kulumikizana kwa bungwe pamtengo wogulira wa 2019.Valavu Yotulutsa MpweyaKupezeka kosalekeza kwa mayankho apamwamba pamodzi ndi ntchito zathu zabwino kwambiri zisanachitike komanso zitatha kugulitsa kumatsimikizira mpikisano wamphamvu pamsika wapadziko lonse lapansi.
Membala aliyense wa gulu lathu lalikulu lopeza phindu amayamikira zosowa za makasitomala ndi kulumikizana kwa bungwe kwa makasitomala.Valavu Yotulutsa Mpweya, Tapeza mbiri yabwino pakati pa makasitomala akunja ndi akunyumba. Potsatira mfundo yoyendetsera ntchito ya "kuyang'ana pa ngongole, makasitomala patsogolo, magwiridwe antchito apamwamba komanso ntchito zokhwima", timalandira bwino anzathu ochokera m'mitundu yonse kuti agwirizane nafe.

Kufotokozera:

Valavu yotulutsa mpweya wothamanga kwambiri imaphatikizidwa ndi magawo awiri a valavu ya mpweya wa diaphragm yokhala ndi mphamvu yayikulu komanso valavu yolowera mpweya yotsika komanso yotulutsa mpweya, yomwe ili ndi ntchito zonse ziwiri zotulutsa mpweya komanso zolowetsa mpweya.
Valavu yotulutsa mpweya wa diaphragm yokhala ndi mphamvu yayikulu imatulutsa yokha mpweya wochepa womwe umasonkhana mupaipi pamene payipiyo ili pansi pa mphamvu.
Valavu yolowetsa mpweya ndi yotulutsa mpweya yochepa singathe kungotulutsa mpweya mu chitolirocho pamene chitoliro chopanda kanthu chadzazidwa ndi madzi, komanso chitolirocho chikachotsedwa kapena chikapanda kupanikizika, monga momwe zimakhalira ndi kulekanitsa mzati wa madzi, chimatseguka chokha ndikulowa mu chitolirocho kuti chichotse chikayirocho.

Chimodzi mwa ntchito zazikulu za valavu yotulutsira mpweya ndikutulutsa mpweya wotsekeredwa m'dongosolo. Madzi akalowa m'mapaipi, mpweya ukhoza kutsekeredwa m'malo okwera, monga m'mapipi opindika, m'malo okwera, komanso pamwamba pa mapiri. Madzi akamayenda m'mapaipi, mpweya ukhoza kusonkhana ndikupanga matumba a mpweya, zomwe zingayambitse kuchepa kwa magwiridwe antchito komanso kupanikizika kwakukulu.

Ma valve otulutsa mpweya, monga ma valve ena a TWS Valvema vavlves okhala ndi rabara a gulugufe, zimathandizanso kwambiri pakusunga bwino komanso kugwira ntchito bwino kwa mapaipi ndi makina omwe amanyamula madzi. Kutha kwawo kutulutsa mpweya wotsekedwa ndikuletsa zinthu zotayira mpweya kumatsimikizira kuti makinawo akuyenda bwino, kupewa kusokonezeka ndi kuwonongeka. Pomvetsetsa kufunika kwa ma valve otulutsa mpweya ndi kutenga njira zoyenera zoyikira ndi kukonza, ogwiritsa ntchito makinawo amatha kuwonetsetsa kuti mapaipi ndi makina awo azikhala odalirika komanso odalirika.

Zofunikira pakuchita bwino:

Valavu yotulutsa mpweya wochepa (yoyandama + mtundu woyandama) doko lalikulu lotulutsa mpweya limaonetsetsa kuti mpweya umalowa ndi kutuluka pa liwiro lalikulu la mpweya wotuluka mofulumira kwambiri, ngakhale mpweya wothamanga kwambiri wosakanikirana ndi utsi wa madzi, sudzatseka doko lotulutsa mpweya pasadakhale. Doko la mpweya lidzatsekedwa kokha mpweya utatulutsidwa kwathunthu.
Nthawi iliyonse, bola ngati kuthamanga kwamkati kwa dongosolo kuli kotsika kuposa kuthamanga kwa mpweya, mwachitsanzo, pamene kulekanitsidwa kwa mizati ya madzi kumachitika, valavu ya mpweya imatseguka nthawi yomweyo kulowa mu dongosolo kuti ipewe kupanga vacuum mu dongosolo. Nthawi yomweyo, kulowetsedwa kwa mpweya panthawi yake pamene dongosolo likutuluka kumatha kufulumizitsa liwiro la kutulutsa. Pamwamba pa valavu yotulutsa mpweya pali mbale yoletsa kuyabwa kuti ifalitse njira yotulutsira mpweya, zomwe zingalepheretse kusinthasintha kwa kuthamanga kwa mpweya kapena zochitika zina zowononga.
Valavu yotulutsa mpweya wothamanga kwambiri imatha kutulutsa mpweya womwe umasonkhana pamalo okwera kwambiri mu dongosololi panthawi yomwe dongosololi lili pansi pa kupanikizika kuti tipewe zochitika zotsatirazi zomwe zingawononge dongosololi: kutseka mpweya kapena kutsekeka kwa mpweya.
Kuchuluka kwa kutayika kwa mutu wa dongosolo kumachepetsa kuthamanga kwa madzi ndipo ngakhale nthawi zina kwambiri kungayambitse kusokonekera kwathunthu kwa kuperekedwa kwa madzi. Kuchulukitsa kuwonongeka kwa cavitation, kufulumizitsa dzimbiri la zigawo zachitsulo, kuonjezera kusinthasintha kwa kuthamanga kwa madzi mu dongosolo, kuonjezera zolakwika za zida zoyezera, ndi kuphulika kwa mpweya. Kuwongolera magwiridwe antchito a mapaipi a madzi.

Mfundo yogwirira ntchito:

Njira yogwirira ntchito ya valavu yolumikizira mpweya pamene chitoliro chopanda kanthu chadzazidwa ndi madzi:
1. Tulutsani mpweya mu chitoliro kuti madzi odzaza ayende bwino.
2. Mpweya womwe uli mu payipi ukatha, madzi amalowa mu valavu yolowetsa mpweya ndi yotulutsa mpweya yotsika, ndipo choyandamacho chimakwezedwa ndi choyandama kuti chitseke madoko olowetsa mpweya ndi otulutsa mpweya.
3. Mpweya wotuluka m'madzi panthawi yopereka madzi udzasonkhanitsidwa pamwamba pa dongosolo, kutanthauza, mu valavu ya mpweya kuti ulowe m'malo mwa madzi oyambirira omwe anali m'thupi la valavu.
4. Mpweya ukachuluka, kuchuluka kwa madzi mu valavu yotulutsa mpweya ya micro-pressure automatic kumatsika, ndipo mpira woyandama umatsikanso, kukoka diaphragm kuti itseke, kutsegula doko la mpweya, ndikutulutsa mpweya.
5. Mpweya ukatulutsidwa, madzi amalowanso mu valavu yotulutsa mpweya ya micro-automatic yokhala ndi mphamvu yothamanga kwambiri, amayandamitsa mpira woyandama, ndikutseka doko lotulutsa mpweya.
Pamene dongosolo likugwira ntchito, masitepe 3, 4, 5 omwe ali pamwambapa adzapitirira kuzungulira
Njira yogwirira ntchito ya valavu yophatikizana ya mpweya pamene kupanikizika mu dongosolo kuli kotsika komanso kupsinjika kwa mlengalenga (kupanga kupsinjika koipa):
1. Mpira woyandama wa valavu yolowetsa mpweya ndi yotulutsa mpweya wochepa udzagwa nthawi yomweyo kuti utsegule madoko olowetsa mpweya ndi otulutsa mpweya.
2. Mpweya umalowa mu dongosolo kuchokera pamenepa kuti uchotse mphamvu yoipa ndikuteteza dongosolo.

Miyeso:

Membala aliyense wochokera ku gulu lathu lalikulu lopeza phindu labwino amayamikira zosowa za makasitomala ndi kulumikizana kwa bungwe la 2019 pamtengo wogulira ductile iron Air Release Valve, Kupezeka kosalekeza kwa mayankho apamwamba kuphatikiza ndi ntchito zathu zabwino kwambiri zisanachitike komanso zitatha kugulitsa kumatsimikizira mpikisano wamphamvu pamsika wapadziko lonse lapansi.
Mtengo wa 2019 wogulira zinthu zonseValavu Yotulutsa Mpweya ya Chinandi Betterfly Valve, tapeza mbiri yabwino pakati pa makasitomala akunja ndi akunyumba. Potsatira mfundo yoyendetsera ntchito ya "kuganizira za ngongole, makasitomala patsogolo, magwiridwe antchito apamwamba komanso ntchito zokhwima", timalandira bwino anzathu ochokera m'mitundu yonse kuti agwirizane nafe.