Ma valve omwe akuwonetsedwa pachithunzichi ndi otsika kukanama valve oyezera opendekera ndi nyundo yolemeraYopangidwa ndi Jinbin Valve, yokhala ndi kukula kuyambira DN250 mpaka DN700. Thupi la valavu limapangidwa ndi chitsulo cha WCB carbon, chokhala ndi zolemera zotsutsana ndi masilinda a hydraulic, ndipo imayesedwa kuti igwire ntchito molingana ndi mphamvu za PN16, PN20 ndi PN25.

Valavu yoyesera gulugufe yotsika komanso yotsika yotseka pang'onopang'ono ya mtundu wa silinda yotsutsana ndi yolimba komanso yolimba pang'onopang'ono imakhala ndi kapangidwe ka magawo awiri kotsegulira ndi kutseka. Pampu yamadzi ikagwira ntchito, mphamvu yapakati imatsegula diski ya gulugufe; mphamvu yotsutsana imakweza pamodzi ndi diski kuti igwirizane ndi kulemera kwa mbale ya gulugufe, zomwe zimachepetsa kwambiri kukana kwa madzi. Pakadali pano, silinda imalowa mu silinda ya hydraulic kuti isunge mphamvu. Pakangotha ​​​​pampu, pansi pa mphamvu yophatikizana ya kulemera kwa thupi, mphamvu yotsutsana ndi mphamvu komanso mphamvu yobwerera m'mbuyo, diski ya gulugufe imatseka mwachangu 80% ~ 90% ya njira yolowera kuti ilepheretse kuyenda kwa madzi ambiri. Kuthamanga kotsala kwa 10% ~ 20% kumatsekedwa pang'onopang'ono kudzera mu hydraulic silinda damping. Valavu ya singano imalola kusintha molondola nthawi yotseka pang'onopang'ono, zomwe zimachotsa mphamvu yokhudza kuyenda kwa madzi pang'onopang'ono ndikuletsa mafunde ogwedezeka a nyundo yamadzi.

Ubwino wa Kugwiritsa Ntchito Koyambira

1. Chotsani nyundo yamadzi ndikuteteza zida

Kutseka pang'onopang'ono kumafooketsa nyundo yamadzi yothamanga kwambiri yomwe imapangidwa pompu ikatsekedwa, kuletsa kuphulika kwa mapaipi ndi kuwonongeka kwa shaft ya pampu, komanso kuchepetsa kwambiri ndalama zokonzera mapaipi.

2. Kukana kwa kuyenda kotsika kwambiri kuti tisunge mphamvu

Cholemera chotsutsana chimalinganiza kulemera kwa mbale ya gulugufe kuti chiziyenda bwino popanda kutsekeka. Kutayika kwa mutu wake ndi kotsika ndi 40% kuposa ma valve oyesera okhazikika, zomwe zimapangitsa kuti mphamvu ikhale yayitali komanso kuti ndalama zisamawonongeke.

3.Kugwira ntchito kolimba komanso kodalirika kosindikiza

Ili ndi kapangidwe kotseka ma disc a gulugufe okhala ndi mbali ziwiri kuti atseke bwino. Thupi la valavuyo lili ndi utoto woteteza dzimbiri, woyenera kugwiritsidwa ntchito m'njira zosiyanasiyana kuphatikizapo madzi oyera, zimbudzi ndi madzi ozungulira.

4. Kusintha kosinthasintha komwe kumagwira ntchito kwambiri

Dongosolo lodziyimira pawokha la hydraulic damping limalola kusintha bwino nthawi yotseka pang'onopang'ono pakafunika. Limaposa ma valve oyesera chete okhala ndi masika ndi malire akulu a malo opopera mapampu akuluakulu (DN300 ndi kupitirira apo).

Ma valve oyesera achizolowezi amatsekedwa nthawi yomweyo, zomwe zimayambitsa nyundo yamadzi yoopsa. Kugundana pafupipafupi kumafupikitsa nthawi yogwira ntchito ya mapampu amadzi, mapaipi ndi ma flange. Mitundu yodzaza ndi masika imagwira ntchito kokha pa ma bore ang'onoang'ono, opanda mphamvu yokwanira yopondereza ndi kutsitsira kwa mainchesi akuluakulu.

Valavu iyi, yopangidwa mwapadera kuti igwiritsidwe ntchito popampu, imagwira ntchito zitatu: yosabweza, kuletsa madzi ndi kukana kuyenda bwino. Imaloŵa m'malo mwa vavu yoyezera yokhazikika komanso chipangizo chosungira madzi, kuchepetsa zolumikizira mapaipi. Mu machitidwe akuluakulu monga madzi a m'boma, madzi oyendera magetsi, madzi ndi ngalande zamadzi, ndi malo opopera madzi a zimbudzi, imateteza bwino ntchito ya mapaipi, imawonjezera nthawi yogwiritsira ntchito zida zonse, komanso imapereka ntchito yabwino kwambiri pakugwira ntchito ndi kukonza kwathunthu.