Isingeniso se-Valve ye-Butterfly

Isingeniso:

Ivalvu ye-butterflyivela emndenini wamavalvu abizwa ngokuthiamavalvu wokujika ngekota. Ekusebenzeni, ivalvu ivuleke ngokupheleleko nofana ivaliwe lokha idiski nayijikeleziswa ngekota. "Ivivane" lidiski yensimbi efakwe phezu kwenduku. Lokha ivalvu nayivaliweko, idiski iyajika ukwenzela bona ivimbe ngokupheleleko indlela yokudlula. Lokha ivalvu nayivulekile ngokupheleleko, idiski iyajikelezwa ngekota ukwenzela bona ivumele ukudlula okungenamkhawulo kwe-fluid. Ivalvu ingavulwa kancanikancani ukugandelela ukugeleza.

Kunemihlobo ehlukileko yamavalvu we-butterfly, enye nenye yenzelwe ukugandeleleka okuhlukileko nokusetjenziswa okuhlukileko. Ivalvu ye-butterfly engana-offset, esebenzisa ukuguquguquka kwerabha, inezinga eliphasi khulu lokugandeleleka. I-valve ye-butterfly esebenza kuhle kabili, esetjenziswa eenhlelweni ezine-pressure ephezulu kancani, isuswa emgqeni ophakathi wesihlalo sediski nesivalo somzimba (ukusuka kokuthoma), kanye nomugqa ophakathi we-bore (ukusuka kwesibili). Lokhu kwenza isenzo se-cam ngesikhathi sokusebenza ukuphakamisa isihlalo ngaphandle kokuvala okurholela ekukhukhuleni okuncani kunalokho okwenziwa emklamweni we-zero offset begodu kwehlisa ukuthambekela kwaso kokuguga. Ivalvu efaneleka khulu eenhlelweni ezine-pressure ephezulu yivalvu yevivane ye-offset kathathu. Kule valve i-eksisi yokuthintana kwesihlalo sediski ihlukaniswe, okwenza bona kupheliswe ukuthintana okutjhelelako hlangana nediski nesihlalo. Endabeni yamavalvu we-offset amathathu isihlalo senziwe ngensimbi ukwenzela bona sisetjenziswe ngomtjhini ukwenzela bona sifinyelele ukuvala okuqinileko lokha nakuthintana nediski.

Imihlobo

1. Amavalvu we-butterfly ahlanganisiwe– umhlobo lo wevalvu unesihlalo serabha esiqinileko esinediski yensimbi.
2. Amavalvu we-butterfly aphindwe kabili(amavalvu we-butterfly asebenza kuhle khulu nofana ama-butterfly valve aphindwe kabili) – imihlobo ehlukileko yezinto ezisetjenziselwa isihlalo nediski.
3. Amavalvu we-butterfly anama-triply-excentric(amavalvu we-butterfly offset kathathu) – iinhlalo zingahle zifakwe ngama-laminethi nofana zenziwe yinsimbi eqinileko.

Amavalvu we-butterfly wesitayela se-wafer

Iisitayela se-wafer se-butterfly valveyenzelwe ukugcina isivalo ngokujamelana nomehluko womfutho oqondileko ukukhandela nanyana ngikuphi ukugeleza emuva emahlelweni aklanyelwe ukugeleza okuqondileko. Ikwenza lokhu ngokuvala okuqinileko; okutjho bona, i-gasket, i-o-ring, eyenziwe ngomtjhini ngokunembileko, kanye nobuso bevalvu obuphaphathekileko emahlangothini aphezulu naphasi wevalvu.

Ivalvu yevithamini yesitayela se-Lug

Amavalvu wesitayela se-lugzibe neenthambo ezifakwe emahlangothini womabili womzimba wevalvu. Lokhu kuvumela bona zifakwe erherhweni ngokusebenzisa amasethi amabili wamabhawudo ngaphandle kwamanati. Ivalvu ifakwa hlangana namafletjhi amabili kusetjenziswa isethi ehlukileko yamabhawudo wefletjhi ngayinye. Ukuhlela lokhu kuvumela nanyana ngiliphi ihlangothi lehlelo lamapayipi bona lingahlanganiswa ngaphandle kokuphazamisa elinye ihlangothi.

Ivalvu yevithamini yesitayela se-lug esetjenziswa emsebenzini ongapheliko ngokuvamileko inezinga lokugandeleleka eliphasi. Ukwenza isibonelo, i-lug-style butterfly valve efakwe hlangana nama-flange amabili ine-1,000 kPa (150 psi) yokulinganisa ukugandeleleka. Ivalvu efanako efakwe nge-flange yinye, ekusebenzeni okungapheliko, inezinga elingu-520 kPa (75 psi). Amavalvu anama-lugged ajamelana khulu namakhemikhali nama-solvent begodu angamelana namazinga womtjhiso afika ku-200 °C, okwenza bona kube sisombululo esihle khulu.

Ukusetjenziswa embonini

Ebubulweni lemithi, amakhemikhali, nokudla, ivalvu ye-butterfly isetjenziselwa ukuphazamisa ukugeleza komkhiqizo (okuqinileko, okusamanzi, igesi) ngaphakathi kwenqubo. Amavalvu asetjenziswa emabubulweni la avamise ukwenziwa ngokuya kwemihlahlandlela ye-cGMP (indlela ehle yokukhiqiza yamanje). Amavalvu we-butterfly avamise ukuthatha indawo yama-ball valve emabubulweni amanengi, khulukhulu i-petroleum, ngebanga leendleko eziphasi nobulula bokufaka, kodwana amapayipi anama-butterfly valve angeze 'wafakwa' ukuhlanzwa.

Iinthombe