Valve Basic

A valavundi chipangizo chowongolera cha mzere wamadzimadzi. Ntchito yake yayikulu ndikulumikiza kapena kudula kufalikira kwa mphete ya payipi, kusintha njira yoyendetsera sing'anga, kusintha kuthamanga ndi kutuluka kwa sing'anga, ndikuteteza magwiridwe antchito a payipi ndi zida.

一.Gulu la mavavu

Malinga ndi ntchito ndi ntchito akhoza kugawidwa mu:

1. Vavu yotseka: kudula kapena kulumikiza sing'anga yamapaipi. Monga: valavu yachipata, valavu yapadziko lonse lapansi, valavu ya mpira, valavu ya butterfly, valve diaphragm, valavu ya pulagi.

2. Onani valavu: kuteteza sing'anga mu payipi kuti asayendere chammbuyo.

3. Valve yogawa: sinthani kayendetsedwe ka kayendedwe kapakati, kugawa, kulekanitsa kapena kusakaniza sing'anga. Monga ma valve ogawa, misampha ya nthunzi, ndi ma valve atatu a mpira.

4. Valavu yoyendetsera: sinthani kupanikizika ndi kuyenda kwapakati. Monga valavu yochepetsera kuthamanga, valavu yowongolera, valavu yopumira.

5. Valve yachitetezo: tetezani kupanikizika kwapakatikati mu chipangizocho kuti zisapitirire mtengo womwe watchulidwa, ndikupereka chitetezo chachitetezo chambiri.

二. Basic magawo avalavu

1. The awiri mwadzina wa valavu (DN).

2. Kuthamanga mwadzina kwa valve (PN).

3. Kuthamanga ndi kutentha kwa valve: Pamene kutentha kwa ntchito kwa valve kumadutsa kutentha kwachidziwitso cha kukakamiza kwadzina, kupanikizika kwake kwakukulu kogwira ntchito kuyenera kuchepetsedwa molingana.

4. Vavu kuthamanga unit kutembenuka:

5. Sing'anga yoyenera yavalavu:

Mavavu mafakitale ntchito mafuta, makampani mankhwala, zitsulo, mphamvu yamagetsi, mphamvu nyukiliya ndi mafakitale ena. Makanema omwe adadutsamo akuphatikizapo mpweya (mpweya, nthunzi, ammonia, gasi wa malasha, gasi wa petroleum, gasi wachilengedwe, ndi zina zotero); zamadzimadzi (madzi, ammonia, mafuta, zidulo, alkali, etc.). Zina mwa izo ndi zowononga ngati mfuti za makina, ndipo zina zimakhala ndi radioactive kwambiri.