Valavu yoteteza jenereta ya nthunzi ndi imodzi mwazinthu zazikulu zachitetezo cha jenereta ya nthunzi. Itha kulepheretsa kupanikizika kwa nthunzi ya boiler kuti isapitirire malire ovomerezeka, potero kuwonetsetsa kuti chotenthetsera chikuyenda bwino. Ndi chipangizo chotetezera kupsinjika kwambiri.
Amagwiritsidwa ntchito mochulukira m'miyoyo yathu, ndipo amathandizira kuwonetsetsa kuti ma jenereta a nthunzi ali otetezeka. Nthawi zambiri, kukhazikitsa, kukonza, ndi kukonza kuyenera kuchitika motsatira malamulo.
Malangizo ogwiritsira ntchito valve chitetezo cha Steam:
1. Valavu yotetezera nthunzi iyenera kuikidwa pamtunda pamtunda wa chizindikiro cha chizindikiro cha jenereta ndi mutu. Palibe mapaipi kapena ma valve otulutsa mpweya omwe adzayikidwe pakati pa valavu yachitetezo ndi ng'oma kapena mutu.
2. Valavu yachitetezo cha nthunzi yamtundu wa lever iyenera kukhala ndi chipangizo chotetezera kulemera kwake kuti zisasunthike palokha ndi chitsogozo chochepetsera kupatuka kwa lever. Valavu yachitetezo chamtundu wa masika iyenera kukhala ndi chogwirizira chonyamulira ndi chida choletsa chowongolera kuti chisatembenuzidwe mwachisawawa.
3. Kwa ma boiler omwe ali ndi mphamvu ya nthunzi yocheperako kapena yofanana ndi 3.82MPa, makulidwe a mmero wa valavu yachitetezo cha nthunzi siyenera kuchepera 25nm; kwa ma boiler okhala ndi kuthamanga kwa nthunzi wamkulu kuposa 3.82MPa, makulidwe a mmero wa valavu yachitetezo sayenera kuchepera 20mm.
4. Chigawo chapakati cha chitoliro cholumikizira pakati pa valavu yachitetezo cha nthunzi ndi chotenthetsera sichiyenera kukhala chocheperako kuposa gawo lolowera gawo la valavu yachitetezo. Ngati mavavu angapo otetezera ayikidwa palimodzi pa chitoliro chachifupi cholumikizidwa mwachindunji ndi ng'oma, njira yodutsa gawo la chitoliro chachifupi sayenera kuchepera 1.25 nthawi yotulutsa mavavu onse otetezera.
5. Ma valve otetezera nthunzi ayenera kukhala ndi mapaipi otulutsa mpweya, omwe amayenera kupita kumalo otetezeka komanso kukhala ndi malo okwanira kuti azitha kuyenda bwino. Pansi pa chitoliro cha chitoliro cha valavu yachitetezo chiyenera kunamiziridwa kukhala ndi chitoliro chopopera cholumikizidwa ndi malo otetezeka. Mavavu saloledwa kuikidwa pa chitoliro cha utsi kapena chitoliro chokhetsa.
6. Maboiler okhala ndi mphamvu ya mpweya wotentha kuposa 0.5t/h ayenera kukhala ndi mavavu osachepera awiri; ma boiler okhala ndi mphamvu yocheperako kapena yofanana ndi 0.5t/h ayenera kukhala ndi valavu imodzi yotetezera. Mavavu otetezedwa ayenera kuyikidwa potuluka pa chotengera chosiyanitsidwa ndi chotuluka cha chotenthetsera cha nthunzi.
7. Valavu yotetezera nthunzi ya chotengera choponderezedwa imayikidwa bwino kwambiri pamalo apamwamba kwambiri a thupi la chotengera chopanikizika. Vavu yachitetezo cha tanki yosungiramo gasi yamadzimadzi iyenera kuyikidwa mu gawo la gasi. Kawirikawiri, chitoliro chachifupi chingagwiritsidwe ntchito kugwirizanitsa ndi chidebecho, ndipo kukula kwa chitoliro chaching'ono cha valve yotetezera sikuyenera kukhala kocheperapo kusiyana ndi kukula kwa valve yotetezera.
8. Mavavu nthawi zambiri saloledwa kuikidwa pakati pa ma valve otetezera nthunzi ndi zotengera. Kwa zitsulo zokhala ndi zoyatsira moto, zophulika kapena zowoneka bwino, kuti athe kuyeretsa kapena kusintha valavu yotetezera, valve yoyimitsa ikhoza kuikidwa. Valve yoyimitsa iyi iyenera kukhazikitsidwa panthawi yogwira ntchito bwino. Otsegula ndi osindikizidwa kuti asasokonezedwe.
9. Kwa zotengera zokakamiza zokhala ndi zoyatsira moto, zophulika kapena zowopsa, zowulutsa zomwe zimatulutsidwa ndi valavu yachitetezo cha nthunzi ziyenera kukhala ndi zida zotetezera ndi machitidwe obwezeretsa. Kuyika kwa valve yachitetezo cha lever kuyenera kukhala yokhazikika, ndipo valavu yachitetezo cha masika imayikidwanso bwino kwambiri kuti isakhudze zochita zake. Pakuyika, chidwi chiyenera kuperekedwanso pakukwanira, coaxiality ya zigawozo, komanso kupsinjika kwa yunifolomu pa bawuti iliyonse.
10. Mavavu otetezedwa a nthunzi atsopano ayenera kutsagana ndi chiphaso cha mankhwala. Asanakhazikitse, amayenera kusinthidwanso, kusindikizidwa ndikupatsidwa chiphaso chowongolera ma valve otetezeka.
11. Kutuluka kwa valavu yachitetezo cha nthunzi kuyenera kukhala kopanda kukana kuti tipewe kupanikizika kumbuyo. Ngati chitoliro chotulutsa chayikidwa, m'mimba mwake wamkati uyenera kukhala wokulirapo kuposa kuchuluka kwa valavu yachitetezo. Kutulutsa kotulutsa kwa valve yachitetezo kuyenera kutetezedwa ku kuzizira. Siyenera kutengera chidebe chomwe chimayaka kapena poizoni kapena poizoni kwambiri. Kwa zotengera zowulutsira, chitoliro chotulutsa chimayenera kulumikizidwa mwachindunji ndi malo otetezeka akunja kapena kukhala ndi zida zotayira moyenera. Palibe ma valve omwe amaloledwa paipi yotulutsa.
12. Palibe valavu yomwe idzakhazikitsidwe pakati pa zida zogwiritsira ntchito mphamvu ndi valavu yotetezera nthunzi. Kwa zitsulo zokhala ndi zoyatsira zoyaka, zophulika, zapoizoni kapena zowoneka bwino, kuti zithandizire kusintha ndi kuyeretsa, valavu yoyimitsa ikhoza kuyikidwa, ndipo kapangidwe kake ndi kukula kwake sizingasinthe. Iyenera kulepheretsa ntchito yabwino ya valve yotetezera. Panthawi yogwira ntchito bwino, valve yoyimitsa iyenera kukhala yotseguka komanso yosindikizidwa.
Nthawi yotumiza: Oct-08-2023
