Choyamba, bwanji kawiri kusindikiza vavu Sizingagwiritsidwe ntchito ngati cheke valavu?

Ubwino wa cheke valavu spool ndiye dongosolo lamphamvu loyeserera, lolola kusiyanasiyana kwakukulu, ndipo kutayika kwake kwakukulu ndikuti malo osindikiza awiriwo sangakhale olumikizana bwino nthawi yomweyo, zomwe zimapangitsa kutayikira kwakukulu. Ngati imagwiritsidwa ntchito mokakamiza pocheka, zotsatira zake sizabwino, ngakhale zitasintha kwambiri (monga valavu yamanja yosindikizidwa kawiri), sizofunika.

Awiri, kuwongolera valavu chifukwa chiyani mipando yaying'ono yotsegulira mipando iwiri siyigwira ntchito mosavuta?

Pakatikati kamodzi, sing'anga ikakhala yotseguka, kukhazikika kwa valavu ndikwabwino; Pakatikati pakuyenda kotsekedwa mtundu, kukhazikika kwa valavu kumakhala kovuta. Valavu yokhala ndi mipando iwiri ili ndi ma spool awiri, spool yotsika imatsekedwa, spool yayikulu ndiyomwe ikuyenda yotseguka, kuti pakatsegulira pang'ono, kutuluka kwa spool ndikosavuta kuyambitsa valavu, ndichifukwa chake mipando iwiri valavu sungagwiritsidwe ntchito pantchito yaying'ono yotsegulira.

Chachitatu, ndivuto lotani lakutali lomwe limalepheretsa magwiridwe antchito ndilabwino, maginito oletsa ma Angle stroke ndiabwino?

Molunjika sitiroko valavu spool ndi ofukula throttling, ndi sing'anga ndi yopingasa otaya ndi kutuluka, otaya njira mu chipinda valavu ayenera kukana, kuti valavu otaya njira amakhala ovuta kwambiri (mawonekedwe monga ozungulira S mtundu). Mwanjira imeneyi, pali madera ambiri okufa, omwe amapereka mpata kuti sing'anga lizitha, ndipo m'kupita kwanthawi, kuyambitsa kutsekeka. Angle sitiroko yopingasa malangizo ndi njira yopingasa, yopingasa yolowera pakatikati, yopingasa kutuluka, kosavuta kuchotsa sing'anga yosayera, nthawi yomweyo njira yolowera ndiyosavuta, malo apakatikati ampweya ndi ochepa kwambiri, kotero Angle stroke stroke blocking ntchito ndi yabwino.

Zinayi. Chifukwa chiyani kudulidwa kwapakati kusiyana kwaNjingayo sitiroko valavu yokulirapo?

Angle sitiroko valavu adadula mavuto kusiyana ndi wokulirapo, chifukwa sing'anga mu valavu Phata kapena valavu yopangidwa ndi zotsatira zake pakusinthasintha kwa shaft torque ndi yaying'ono kwambiri, chifukwa chake, imatha kupirira kusiyana kwakukulu kwamagetsi.

Zisanu, chifukwa chiyani sitiroko yolunjika yoyendetsa valavu ndi yopyapyala?

Zimaphatikizira njira yosavuta yamakina: kukangana kwakukulu, kutsutsana pang'ono. Molunjika sitiroko valavu tsinde kayendedwe mmwamba ndi pansi, kulongedza pang'ono molimbira, adzaika phukusi tsinde ndi zolimba kwambiri, chifukwa mu kubwerera lalikulu. Kuti izi zitheke, tsinde la valavu lakonzedwa kuti likhale laling'ono kwambiri, ndipo kulongedza kumakonda kugwiritsidwa ntchito ndi kafufuzidwe kakang'ono koyerekeza ka tetrafluorine, kuti muchepetse kusiyana kwakubwerera, koma vuto ndikuti tsinde ndi locheperako, ndikosavuta kupindika, ndipo moyo wazolongedza ndi waufupi. Pofuna kuthana ndi vutoli, njira yabwino ndikugwiritsa ntchito tsinde la brigade, ndiye kuti, mtundu wa Angle stroke woloza valavu, tsinde lake kuposa tsinde lolunjika kawiri nthawi ~ ~ 3, ndikugwiritsa ntchito kulongedza kwa graphite kwa nthawi yayitali, kuuma kwa tsinde ndikwabwino , Kuyika moyo ndikutali, makokedwe amkangano ndi ochepa, kusiyana kwakanthawi kochepa.

Chachisanu, chifukwa chiyani madzi osambira amagwiritsira ntchito mphira wa batalagulugufe, fluorine alimbane ndi mpweya wamagetsi moyo waufupi?

Chidebe chamadzi chomwe chili ndi mchere chimakhala ndi asidi kapena alkali wambiri, yemwe ndi wowola kwambiri ku mphira. Mphira wachita kukhathamira kukulitsa, ukalamba, mphamvu zochepa, ndi valavu yamagetsi yamagulugufe, zakulera zamagwiritsidwe zamagetsi sizabwino kwenikweni ndikulimbana ndi dzimbiri. Pambuyo pa valavu ya diaphragm ya mphira itakonzedwa bwino ngati dzimbiri labwino lomwe limatsutsana ndi fluorine lining diaphragm valve, koma chifundikiro cha fluorine lining diaphragm valavu sichitha kupirira kupindika kwakumtunda ndikutsika, zomwe zimapangitsa kuwonongeka kwa makina, moyo wa valavu ndi wamfupi . Tsopano njira yabwino kwambiri ndiyopangira madzivalavu mpira, itha kugwiritsidwa ntchito zaka 5 ~ 8.

Zisanu ndi ziwiri. Chifukwa chiyani valavu yodulidwa iyenera kusindikizidwa molimbika momwe zingathere?

Kuchepetsa kutayikira kumafunika kudula valavu, kumakhala bwino. Kutulutsa kwa valavu yofewa yosindikiza ndikotsika kwambiri. Kudula kumakhaladi kwabwino, koma sikokwanira ndipo sikodalirika. Kuchokera pamiyeso iwiri yakudontha kwakung'ono ndikusindikiza kosadalirika, chisindikizo chofewa sichabwino ngati chosindikizira cholimba. Monga kugwira ntchito kwathunthu kwa valavu yowunikira kwambiri, yotsekedwa ndikusungidwa ndi zotetezera za alloy zosagwira, kudalirika kwambiri, kutayikira kwa 10 ~ 7, yakwanitsa kukwaniritsa zofunikira za valavu yodulidwa.