Valavu ya Gulugufe vs. Valavu ya Mpira: Ndi iti yomwe ili yabwino kwambiri pa mapaipi anu

Ponena za makina opachikira mapaipi, kusankha valavu yoyenera ndikofunikira kwambiri kuti ntchito iyende bwino komanso igwire bwino ntchito. Njira ziwiri zodziwika bwino—mavavu a gulugufe ndi mavavu a mpira—iliyonse imapereka zabwino zapadera zomwe zingakhudze kwambiri mapulojekiti anu. Mavavu a gulugufe, okhala ndi kapangidwe kake kopepuka komanso kagwiritsidwe ntchito mwachangu, ndi abwino kwambiri pakugwiritsa ntchito komwe kumafuna kupondereza kapena kuwongolera kuyenda kwa madzi, pomwe mavavu a mpira ndi abwino kwambiri popereka chisindikizo cholimba komanso kuyenda bwino m'mikhalidwe yovuta kwambiri. Koma ndi iti yomwe imalamulira kwambiri zosowa zanu? M'nkhaniyi, tikuyang'ana kwambiri dziko la mavavu a gulugufe ndi mpira, poyerekeza magwiridwe antchito awo, zabwino zawo, ndi ntchito zabwino kwambiri. Kaya ndinu mainjiniya wodziwa zambiri kapena wokonda DIY, kumvetsetsa mavavu awa ndikofunikira kuti mupange chisankho chodziwikiratu chomwe chidzakulitsa makina anu opachikira mapaipi. Tigwirizaneni pamene tikufufuza momwe zinthu zililivalavu ya gulugufe vs. valavu ya mpirakuti zikuthandizeni kudziwa zoyenera pa ntchito yanu yotsatira.

Chidule cha Valavu ya Gulugufe

Valavu ya gulugufeimagwiritsa ntchito chinthu chotseka chooneka ngati diski ("gulugufe") chomwe chimazungulira mozungulira mzere wake kuti chitsegule/chitseke kapena kulamulira kayendedwe kake. Chogwiritsidwa ntchito makamaka pakupatula ndi kugwedeza, chimafuna kuzungulira kosakwana 90° kuti chigwire ntchito yonse. Popeza diskiyo ilibe mphamvu yodzitsekera yokha, chochepetsera zida za nyongolotsi nthawi zambiri chimawonjezeredwa kuti chikonze malo ake ndikuwonjezera magwiridwe antchito.

Zigawo Zofunika Kwambiri za Ma Valves a Gulugufe

1. Thupi la Vavu: Imathandizira ndi kusunga ziwalo zamkati.

2. Boneti ya Vavu: Yogwirizana ndi thupi (osati gawo losiyana mu zojambula za kapangidwe).

3. Mpando wa Vavu: Mphete yotsekera yotanuka yomwe imaonetsetsa kuti yatsekedwa bwino.

4. Tsinde: Amalumikiza diski ku actuator.

5. Disiki (Gulugufe): Imazungulira kuti ilamulire kuyenda kwa madzi (kozungulira/kozungulira pang'ono).

6. Mphete Yosindikiza: Chotchinga chotanuka pakati pa diski ndi mpando.

7. Woyambitsa: Chogwirizira ndi manja, choyendetsa mpweya, kapena chogwiritsa ntchito magetsi.

8. Njira Yogwirira Ntchito: Gudumu lamanja, bokosi la gear, kapena valavu ya solenoid.

Chidule cha Ma Valves a Mpira

Valavu ya mpiraImagwiritsa ntchito chinthu chozungulira chotseka ("Valuvu ya Mpira") chokhala ndi bowo loyambira/loyimitsa kuyenda. Yabwino kwambiri poyendetsa ndikutseka komanso kuyendetsa bwino mapaipi amafuta/gasi, mankhwala, ndi zina zambiri. Mitundu yake ndi ma valve a mpira oyandama, omangika pa trunnion, ndi V-port. Kugwira ntchito kwake kwa 90° kumatsimikizira kutsekedwa mwachangu, kukana kuyenda pang'ono, komanso kapangidwe kakang'ono.

Zigawo Zofunika Kwambiri za Ma Valves a Mpira:

1. Thupi la VavuChipolopolo chakunja (chitsulo cha kaboni, chitsulo chosapanga dzimbiri, kapena pulasitiki)

2. Boneti ya Vavu:

• Mapangidwe a ziwalo zogawanika: Bonnet yosiyana (monga, ma valve awiri/atatu).

• Mapangidwe a chidutswa chimodzi: Yogwirizana ndi thupi (monga mpira wa V, eccentric, ma valve a wafer).

3. Mpira (Choyambira cha Valavu): Pakati pake pozungulira pali chibowo chowongoka kapena chooneka ngati V.

4. Mpando wa Vavu: PTFE, chisindikizo cha rabara, kapena chitsulo choletsa kutuluka kwa madzi.

5. Tsinde: Imasamutsa mphamvu kuchokera ku actuator kupita ku mpira.

6. Kulongedza Tsinde ndi Tizilombo: Kupaka kwa graphite kopanikizika kuti kupewe kutuluka kwa madzi.

7. Woyambitsa: Yogwiritsidwa ntchito ndi manja (lever/gearbox) kapena yodzichitira yokha (yamagetsi/pneumatic).

Kusiyana Kwakukulu Pakati pa Ma Valves a Gulugufe ndi Ma Valves a Mpira

Ubwino wa Ma Vavu a Gulugufe

•Kapangidwe Kakang'ono: Imasunga malo (monga, valavu ya gulugufe ya DN1000: ~2T poyerekeza ndi valavu ya chipata ya 3.5T).

•Mphamvu Yochepa Yogwira Ntchito: Kuzungulira kwa 90° kumafuna 1/3–1/2 mphamvu ya ma valve ofanana.

•Kutha Kuyenda Kwambiri: 1.5–2 × kuyenda kwakukulu kuposa ma valve a globe ofanana.

•Kusinthasintha: Imasamalira madzi, gasi, matope; imathandizira kutseka mbali zonse ziwiri.

Ubwino wa Ma Vavu a Mpira

•Kusindikiza kwa Zero-Leakage: Mipando yopangidwa ndi makina olondola kuti ikhale yolimba komanso yolimba.

•Kugwira Ntchito Mwachangu: Kuzungulira kwa 90° kumathandiza kuyankha mwachangu.

•Kugwiritsa Ntchito KwambiriKukula: mm mpaka m; kupanikizika kwa ≤4500 psi.

•Kukonza Kosavuta: Mipando/magasket osinthika amathandiza kukonza mosavuta.

Kugwiritsa Ntchito ndi Milandu Yogwiritsira Ntchito Ma Valves a Gulugufe:

Malo oyeretsera madzi (kulamulira kayendedwe ka madzi).

Kupanga magetsi (malo olowera ma turbine, makina a nthunzi).

Kukonza mankhwala (zamadzimadzi zowononga).

Chakudya/mankhwala (mapangidwe aukhondo).

Zapadera: Chisindikizo chachitsulo (chotentha kwambiri), chisindikizo chofewa (mpweya wopuma), hydraulic (kupewa nyundo yamadzi).

Kugwiritsa Ntchito ndi Milandu Yogwiritsira Ntchito Ma Valves a Mpira

Mapaipi a mafuta/gasi (kupatula mphamvu yamagetsi).

Kukonza HVAC/mapaipi (kulamulira madzi ndi kutentha).

Machitidwe amadzi okhala m'nyumba.

Kugawa kwa gasi (gasi lachilengedwe, LPG).

Kukonza mankhwala/chakudya (mapangidwe osapsa ndi dzimbiri).

Kuyerekeza Mtengo: Ma Vavu a Gulugufe vs. Ma Vavu a Mpira

Ma valve a gulugufe nthawi zambiri amawononga ndalama zochepera 20–40% kuposa ma valve a mpira chifukwa chopanga mosavuta. Komabe, ma valve a mpira amapereka ndalama zochepa zogwirira ntchito m'mikhalidwe yovuta kwambiri (high-P/T, corrosive media) chifukwa cha kukhala ndi moyo wautali komanso nthawi yochepa yogwira ntchito.

Posankha ma valve a makina opaipira, mtengo wake ndi wofunikira kwambiri pamodzi ndi mawonekedwe amadzimadzi ndi momwe amagwirira ntchito. Mitengo ya ma valve a mpira ndi ma valve a gulugufe imasiyana kwambiri kutengera zomwe zafotokozedwa, kusankha zinthu, ndi njira zopangira.

Kawirikawiri,ma valve a gulugufe amapereka njira yotsika mtengo kwambirikusiyana ndi ma valve a mpira ofanana kukula ndi kupanikizika. Kusiyana kwa mitengo kumeneku kumachokera ku kusiyana kwakukulu kwa kupanga:

1. Kuvuta ndi Zipangizo:Ma valve a mpira amafunikira makina ovuta kwambiri, zipangizo zambiri zopangira, ndi njira zina zowonjezera zopangira.

2. Kutseka Magwiridwe Ntchito:Kuti ma valve a mpira akhale olimba kwambiri, pamafunika kulondola kwambiri komanso kuwongolera bwino khalidwe.

3. Kugwiritsa Ntchito Bwino Ntchito:Ma valve a gulugufe ali ndi mapangidwe osavuta okhala ndi zigawo zochepa, zomwe zimapangitsa kuti zinthu zichepetse komanso ndalama zogulira zinthu zichepetse.

4. Mfundo Yofunika Kuiganizira:Ngakhale ma valve a gulugufe nthawi zambiri amapereka ndalama zochepa pasadakhale, ma valve a mpira nthawi zambiri amaperekaphindu lalikulu kwa nthawi yayitali mu ntchito zovutaPakakhala zinthu zoopsa kwambiri monga kutentha kwambiri, kuthamanga kwambiri, kapena zinthu zowononga, ma valve a mpira nthawi zambiri amapereka:

- Nthawi yayitali yautumiki

- Zofunikira zosamalira zochepa

- Kudalirika Kwambiri

Kusankha Valavu Yoyenera:Kusankha koyenera kwambirindalama zoyambirandindalama zonse zogulira moyo wonse. Unikani zosowa zinazake zogwirira ntchito—kuphatikizapo kuthamanga kwa mpweya, kutentha, kuyanjana kwa madzi, ndi kulimba kofunikira—pamodzi ndi zoletsa za bajeti. Kusankha kutengera mtengo wogulira kokha kungayambitse ndalama zambiri chifukwa cha kulephera msanga kapena kukonza pafupipafupi pazinthu zosayenerera.

Pomaliza: Kusankha Valavu Yoyenera Zosowa Zanu

Ma valve a gulugufe ndi abwino kwambiri pamitengo yochepa, malo ochepa, komanso kuyenda kwa madzi ambiri. Ma valve a mpira ndi omwe amagwiritsidwa ntchito kwambiri pa kuthamanga kwa mpweya/kutentha kwambiri, osatulutsa madzi ambiri. Ikani patsogolo zinthu zamadzimadzi, momwe zimagwirira ntchito, komanso ndalama zomwe zimagwiritsidwa ntchito posankha pakati pawo.