Kusiyana kwakukulu pakati pa valavu yochepetsera kupanikizika ndi valavu yotetezera

1. Valavu yochepetsera kupanikizika ndi valavu yomwe imachepetsa kupanikizika kolowera ku mphamvu inayake yotulutsira mpweya kudzera mu kusintha, ndipo imadalira mphamvu ya cholumikiziracho kuti chisunge mphamvu yokhazikika yotulutsira mpweya. Kuchokera pakuwona kwa makina amadzimadzi, valavu yochepetsera kupanikizika ndi chinthu chozungulira chomwe kukana kwake kwapafupi kungasinthidwe, ndiko kuti, posintha malo ozungulira, liwiro la kuyenda ndi mphamvu ya kinetic yamadzimadzi zimasinthidwa, zomwe zimapangitsa kuti kutayika kwa kupanikizika kukhale kosiyana, kuti cholinga chochepetsa kupsinjika chikwaniritsidwe. Kenako dalirani kusintha kwa dongosolo lowongolera ndi kulamulira kuti ligwirizane ndi kusinthasintha kwa kupanikizika kwa pambuyo pa valavu ndi mphamvu ya kasupe, kuti kupanikizika kwa pambuyo pa valavu kukhale kosasintha mkati mwa mtundu wina wa zolakwika.

2. Valavu yotetezera ndi gawo lotsegulira ndi kutseka lomwe nthawi zambiri limakhala lotsekedwa ndi mphamvu yakunja. Pamene kupanikizika kwapakati mu chipangizo kapena payipi kukukwera pamwamba pa mtengo wotchulidwa, kumaletsa kupanikizika kwapakati mu payipi kapena zida kuti kusapitirire mtengo wotchulidwa potulutsa cholumikiziracho kunja kwa dongosolo. Mavavu otetezera ndi mavavu odziyimira pawokha, omwe amagwiritsidwa ntchito makamaka mu ma boiler, zotengera zopanikizika ndi mapaipi, kuti azitha kuwongolera kupanikizika kuti kusapitirire mtengo wotchulidwa, ndipo amachita gawo lofunikira poteteza chitetezo cha munthu ndi magwiridwe antchito a zida.

2. Kusiyana kwakukulu pakati pa valavu yochepetsera kuthamanga ndi valavu yotetezera:
1. Valavu yochepetsera kupanikizika ndi chipangizo chomwe chimachepetsa sing'anga yokhala ndi kupanikizika kwakukulu kupita ku sing'anga yokhala ndi kupanikizika kochepa. Kupanikizika ndi kutentha kwake kuli mkati mwa malire enaake.
2. Ma valve oteteza ndi ma valve omwe amagwiritsidwa ntchito poletsa ma boiler, zotengera zopanikizika ndi zida zina kapena mapaipi kuti asawonongeke chifukwa cha kupanikizika kwambiri. Pamene kupanikizika kuli kokwera pang'ono kuposa kupanikizika kwabwinobwino kogwira ntchito, valavu yotetezera imatseguka yokha kuti ichepetse kupanikizika. Pamene kupanikizika kuli kotsika pang'ono kuposa kupanikizika kwabwinobwino kogwira ntchito, valavu yotetezera imatseka yokha, imasiya kutulutsa madzi ndikusungabe kutseka. Mwachidule, valavu yotetezera ndi yoletsa kupanikizika kwa dongosolo kuti kusapitirire mtengo winawake, ndipo imagwiritsidwa ntchito makamaka kuteteza dongosolo. Vavu yochepetsera kupanikizika ndi yochepetsa kupanikizika kwa dongosolo kuchoka pa kupanikizika kwakukulu kupita pamtengo womwe mukufuna, ndipo kupanikizika kwake kuli mkati mwa mtunda, bola ngati kuli mkati mwa mtunda uwu.
3. Valavu yoteteza ndi valavu yochepetsera kupanikizika ndi mitundu iwiri ya mavavu, omwe ndi mavavu apadera. Pakati pawo, valavu yoteteza ndi ya chipangizo chotulutsira chitetezo, chomwe ndi valavu yapadera, yomwe imagwira ntchito pokhapokha ngati kuthamanga kwa ntchito kwapitirira malire ololedwa, ndipo imagwira ntchito yoteteza mu dongosolo. Valavu yochepetsera kupanikizika ndi valavu yoyendetsera ntchito yomwe imatha kumasula zinthu zopanikizika kwambiri kuti ikwaniritse zofunikira za kuthamanga kwa makina ogwiritsira ntchito pambuyo pokonza. Ntchito yake imagwira ntchito mosalekeza.