Kodi valavu yapadziko lonse imagwira ntchito bwanji? Malangizo a vavu: Phunzitsani kuzindikira mtundu wa valavu ya gulugufe ndi mitundu yodziwika bwino ya ma valve padziko lonse lapansi

Kodi valavu yapadziko lonse imagwira ntchito bwanji? Malangizo a vavu: Phunzitsani kuzindikira mtundu wa valavu ya gulugufe ndi mitundu yodziwika bwino ya ma valve padziko lonse lapansi

Mwachitsanzo, taganizirani thanki yaikulu yokhala ndi chivindikiro. Madzi amalowa mu thanki ndikutuluka pamutu wa silinda. Mutu wa silinda umakhala ngati gawo lotseka la valve. Ngati dzanja likupita kumutu wa silinda, ndilofanana ndi mfundo yogwira ntchito ya valve yoyimitsa. Ngati musuntha mutu wa silinda mozungulira, umagwira ntchito mofanana ndi valve yoyimitsa.
Mwachitsanzo, taganizirani thanki yaikulu yokhala ndi chivindikiro. Madzi amalowa mu thanki ndikutuluka pamutu wa silinda. Mutu wa silinda umakhala ngati gawo lotseka la valve. Ngati dzanja likupita kumutu wa silinda, ndilofanana ndi mfundo yogwira ntchito ya valve yoyimitsa. Ngati musuntha mutu wa silinda mozungulira, umagwira ntchito mofanana ndi valve yoyimitsa.
Zofunikira zazikulu:
1. Kufotokozera kwapangidwe: GB/T 12235
2. Katundu wamalumikizidwe:
1) BW pakuwotcherera kwa matako: dinani GB/T 12224
2) Flange end RF: press JB79; GB/T 9113; HG20592
3, kuzindikira mavavu ndi kuyesa:GB/T 13927; JB/T 9092
Gwiritsani ntchito zomangamanga izi:
Open bar thandizo chimango mtundu
Screw yolumikizidwa limodzi valavu yotaya; Kuthamanga kwa gasi kudzilimbitsa yokha valavu yotuluka
Chigawo chimodzi chapamwamba chosindikizira mpando
A:
Magawo otsegulira ndi otseka a valavu yapadziko lonse lapansi ndi cylindrical disc, ndipo malo oyambira ndi ozungulira kapena ozungulira. Valve disc imayenda motsatira mzere wamadzimadzi molunjika. Mayendedwe a tsinde la valavu, pali mtundu wamagetsi okankhira ndodo (kusintha kwa tsinde la valve, spindle sikusintha), ndikusintha mtundu wa ndodo yozungulira (kukweza tsinde ndi tsinde la valavu, bolt yomangidwa pa mbale yamafuta). Valavu yapadziko lonse lapansi ndiyongotsegula ndi kutseka, makonda amatha kusinthidwa ndi valavu yopumira.
Pamene valve yapadziko lonse imatsegulidwa, kutalika kwake kwa diski kutsegulidwa ndi 25% ~ 30% ya kunja kwake, kutuluka kwathunthu kwafika pamlingo waukulu kwambiri, kusonyeza kuti valavu yakhala yochuluka kuposa malo otseguka. Chifukwa chake, malo otseguka a valavu yapadziko lonse lapansi ayenera kutsimikiziridwa ndi sitiroko ya disc.
Malangizo a vavu: Akuphunzitseni kuzindikira mtundu wa valavu yagulugufe ndi zida zosindikizira zamtundu wa valavu wa globe ndi kuchuluka kwa kutayikira kwake ndizozigawo zazikulu zozindikiritsa kuchuluka kwa index ya valavu. Valve si yabwino kapena yoyipa, valavu yogwiritsira ntchito yapadera yogwirira ntchito ingagwiritsidwe ntchito kwa nthawi yayitali ingagwiritsidwenso ntchito kwakanthawi kochepa kwambiri. Choncho musaweruze potengera zoyenera. Zimatengera kuphatikiza kwazinthu zogwirira ntchito. Valavu ya globe ya Plunger: Mwanjira iyi valavu yapadziko lonse lapansi ndikusintha kwa valavu yapadziko lonse lapansi. Mu valavu iyi, ma disc ndi ma valve othamanga kwambiri nthawi zambiri amasinthidwa malinga ndi malingaliro a plunger. Chimbalecho chimapukutidwa kukhala plunger ndikulumikizana ndi tsinde. Chisindikizocho chimatheka ndi mphete ziwiri za elastomer zoyamwa mu plunger.
Dziwani mtundu wa valavu ya butterfly
Kulimba kwa valve ndikuyesa valavu. Itha kukwaniritsa kusindikiza koyenera kwambiri kutengera zida za valve, njira yopangira, kupanga komanso momwe ntchito yogwiritsidwira ntchito.
Zida zosindikizira za valavu ndi kutsika kwake kosindikiza ndizozigawo zazikulu za mtengo wa ndondomeko kuti zizindikire kutalika kwa valve. Valve si yabwino kapena yoyipa, valavu yogwiritsira ntchito yapadera yogwirira ntchito ingagwiritsidwe ntchito kwa nthawi yayitali ingagwiritsidwenso ntchito kwakanthawi kochepa kwambiri. Choncho musaweruze potengera zoyenera. Zimatengera kuphatikiza kwazinthu zogwirira ntchito.
Mbali yotsegulira ndi kutseka ya gulugufe ndi mbale yagulugufe yooneka ngati disk, yomwe imazungulira pakati pa mzere wake wapadera mu thupi la valavu kutsegula ndi kutseka kapena kusintha valavu yotchedwa butterfly valve. Vavu yagulugufe nthawi zambiri imakhala yochepera madigiri 90 kuchokera pakutsegula mpaka kutseka. Vavu yagulugufe ndi ndodo yagulugufe sizinakhomedwe mwamphamvu. Kuti muyike mbale ya agulugufe, chochepetsera mapulaneti chiyenera kuikidwa pa tsinde la valve. Kusankhidwa kwa mapulaneti ochepetsera, sikuti kungapangitse mbale yagulugufe kukhala ndi mlingo wokhoma, kotero kuti mbale ya butterfly imatha mwachisawawa, komanso imatha kusintha machitidwe a valavu.
Makhalidwe a valavu ya butterfly yopanga mafakitale amatha kupirira kutentha, gulu lomwe limagwira ntchito ndilokwera kwambiri, valavu yamadzimadzi ya valve ndi yaikulu, valavu ya solenoid imapangidwa ndi carbon steel, mphete yosindikiza ya valve imapangidwa ndi chitsulo m'malo mwa valavu. mphete ya mphira. Mavavu agulugufe akuluakulu ndi apakatikati amapangidwa ndi mbale zachitsulo zowotcherera, zomwe zimagwiritsidwa ntchito mosalekeza munjira yopititsira utsi ndi mapaipi amafuta.
Mitundu yodziwika bwino ya ma valve
1, Angle globe valve mu Angle globe valve, madziwa amangofunika kusintha momwe akulowera kamodzi, kuti mpweya wodutsa mu valve ukhale wocheperako kusiyana ndi kapangidwe ka valve yapadziko lonse lapansi.
2, valavu yamtundu wa DC yoyenda molunjika ndi valavu yapadziko lapansi yooneka ngati Y, chipata cha mbale yamafuta ndi njira yayikulu yolowera mu slash, mulingo otaya ndi wotsika kuposa valavu yapadziko lonse lapansi, motero malinga ndi nsungwi Ze valavu. kukana kuyenda kumagwirizananso ndi zazing'ono.
3, valavu yamtundu wa plunger: njira iyi ya valavu yapadziko lonse lapansi ndikusintha kwa valavu yapadziko lonse lapansi. Mu valavu iyi, ma disc ndi ma valve othamanga kwambiri nthawi zambiri amasinthidwa malinga ndi malingaliro a plunger. Chimbalecho chimapukutidwa kukhala plunger ndikulumikizana ndi tsinde. Chisindikizocho chimatheka ndi mphete ziwiri za elastomer zoyamwa mu plunger. Zisindikizo ziwiri za elastomeric zimasiyanitsidwa ndi clasp ndipo zimaphatikizidwa mozungulira plunger ndi katundu wowonjezeredwa ku valve imodzi yothamanga ndi mtedza umodzi wa valve. Elastoseals amatha kuchotsedwa ndipo amatha kupangidwa ndi zinthu zosiyanasiyana. Valavu imagwiritsidwa ntchito makamaka "kutsegula" kapena "kutseka" valavu, koma ma plungers opangidwa mwapadera kapena clasp yapadera angagwiritsidwenso ntchito kusintha valavu.