Kodi Valavu ya Gulugufe Yogwira Ntchito Kwambiri ndi Chiyani? Buku Lotsogolera Mainjiniya ndi Kugula Zinthu

Kodi Valavu ya Gulugufe Yogwira Ntchito Kwambiri ndi Chiyani?

A Vavu ya Gulugufe Yapamwamba Kwambiri(HPBV) ndi chipangizo chowongolera kuyenda kwa mafunde chozungulira cha kotala chomwe chili ndi diski yotsekedwa ndi kapangidwe ka stem—nthawi zambiri imakhala yotsekedwa kawiri (yokhala ndi eccentric kawiri) kapena yotsekedwa katatu (yokhala ndi eccentric katatu)—yothandiza kutseka bwino, kutsika kwa mphamvu yogwirira ntchito, komanso nthawi yayitali yogwira ntchito poyerekeza ndi ma valve agulugufe okhazikika.

Mosiyana ndiValavu ya Gulugufe Yozungulira, komwe tsinde limakhala pakati pa thupi la valavu ndipo diski imakhalabe ikukhudzana ndi mpando nthawi zonse ikazungulira, kapangidwe kake kapamwamba kamakhala ndi mawonekedwe amodzi kapena angapo omwe amalola diski kulowa ndi kutuluka mu mpando, ndikuikhudza kokha pamalo otsekedwa kwathunthu. Kusiyana kwakukulu kumeneku kwaukadaulo kumachepetsa kwambiri kukangana ndi kuwonongeka, zomwe zimathandiza mavalavu a gulugufe ogwira ntchito kwambiri kuthana ndi kupsinjika kwakukulu (mpaka Class 600 kapena kupitirira apo), kutentha kwakukulu (mpaka 650°C yokhala ndi mipando yachitsulo), komanso zinthu zowononga kapena zowononga kwambiri kuposa zina zomwe zimagwiritsidwa ntchito.

Padziko lonse lapansi, msika wa ma valve a gulugufe ogwira ntchito bwino ukukula mofulumira, ndipo zikuyembekezeka kuti udzakwera kuchoka pa USD 7.23 biliyoni mu 2024 kufika pa USD 12.94 biliyoni pofika chaka cha 2031, pa CAGR ya 8.70%. Kukula kumeneku kumachitika chifukwa cha kufunikira kwakukulu m'mafakitale amafuta ndi gasi, kukonza mankhwala, ndi kupanga magetsi.

Gulu la API 609: Kodi Ma Valves a Gulugufe Ogwira Ntchito Kwambiri Amalowa Kuti?

Kuti timvetse bwino komwe ma valve a gulugufe ogwira ntchito bwino ali, mainjiniya ndi akatswiri ogula ayenera kudziwa bwino muyezo woyendetsera - API 609 (Ma valve a Gulugufe: Okhala ndi Double-flanged, Lug- ndi Wafer-type). Muyezo uwu umatanthauzira magulu awiri omveka bwino:

Gulu B likugwirizana mwachindunji ndi ma valve a gulugufe omwe amagwira ntchito bwino kwambiri. API 609 imati ma valve a Gulu B ali ndi "mpando wokhazikika komanso mawonekedwe a disc yozungulira kapena yozungulira" ndipo ali ndi ASME Class ndi pressure-temperature rated.

Kusiyana kwakukulu ndichakuti ma valve a Gulu A amayesedwa ndi wopanga pa mphamvu yogwira ntchito yozizira yokha, pomwe ma valve a Gulu B amayesedwa mokwanira kuti ayang'ane kuthamanga ndi kutentha kwa ASME B16.34. Kwa mainjiniya omwe amasankha valavu yogwirira ntchito iliyonse kupatula madzi kapena mpweya wozungulira, Gulu B (ntchito yapamwamba) ndiye chisankho choyenera.

 

Kapangidwe ka Vavu ya Gulugufe Yogwira Ntchito Kwambiri: Kumvetsetsa Mfundo Yotsutsana

Mapangidwe Awiri Aakulu Ogwira Ntchito Kwambiri

Kuchotsera Kawiri (Kupatula Kawiri) - Maziko

Kapangidwe kake ka double offset—nthawi zina kamangotchedwa “high performance butterfly valve”—kamakhala ndi ma offset awiri osiyana:

1. Offset 1: Mzere wa shaft uli kumbuyo kwa diski yotsekera, kutali ndi mzere wapakati pa mpando.
2. Offset 2: Mzere wa shaft uli kutali ndi pakati pa chitoliro cha chitoliro.

Ma offsets awiriwa amapanga mphamvu ya kamera panthawi yozungulira. Pamene valavu ikuyamba kutseguka, diski imachoka pampando nthawi yomweyo—nthawi zambiri mkati mwa madigiri 7-10 oyamba oyenda. Pa nthawi yonse yotsala ya stroke ya madigiri 90, diski imazungulira popanda kukhudza mpando, zomwe zimachotsa kukangana ndi kuwonongeka. Kapangidwe kameneka kamatseka mbali zonse ziwiri pamlingo wonse wa kupanikizika.

Ma valve awiri otsekedwa akhoza kukhala ndi mipando ya PTFE kapena yolimbikitsidwa ya PTFE (RPTFE) kuti igwiritsidwe ntchito nthawi zonse mpaka pafupifupi 260°C, komanso mipando yachitsulo/graphite yokhala ndi laminated kuti igwiritsidwe ntchito kutentha kwambiri.

Kuchotsera Katatu (Kupatula Katatu) - Kwa Ntchito Yofunika Kwambiri

Valavu yochotsera katatu imawonjezera chochotsera chachitatu cha geometric:

Offset 3: Mzere wa nkhope ya mpando wozungulira umachotsedwa pakati pa shaft, zomwe zimapangitsa kuti pakhale kutseka kwachitsulo ndi chitsulo chokhala ndi mawonekedwe ozungulira.

Mu valavu yotsekedwa katatu, malo otsekera sakukandana kapena kutsetsereka nthawi iliyonse akamazungulira. Disikiyo imakhudza mpando pokhapokha ngati watsekedwa bwino kudzera mu njira yozungulira ngati wedge. Izi zimachotsa kuwonongeka kwa makina kwathunthu.

Ma valve atatu otsekedwa amapereka mipando yachitsulo yotsekedwa ngati thovu (yolimba ngati bubble tight) ndi kutseka (zero leak), zomwe zimathandiza:

• Kutentha kumasiyana kuyambira -240°C mpaka 650°C
• Magulu opanikizika mpaka Kalasi 600 (kapena kupitirira apo ngati apempha)
• Mwachibadwa, magwiridwe antchito abwino oteteza moto popanda mipando yofewa
• Kutseka mbali ziwiri komwe kumakula pamene kuthamanga kwa mzere kukukwera

Makhalidwe amenewa amachititsa kuti ma valve atatu a offset akhale oyenera kugwiritsidwa ntchito kwambiri komwe ma valve okhala ndi mipando yofewa sangagwiritsidwe ntchito—kuphatikizapo nthunzi yotentha kwambiri, kusiyanitsa ma hydrocarbon, ndi ntchito ya okosijeni.

Zigawo Zofunika Kwambiri za Valavu ya Gulugufe Yogwira Ntchito Kwambiri

Kumvetsetsa kapangidwe ka zigawo kumathandiza mainjiniya kuwunika kusiyana kwa khalidwe pakati pa opanga:

Valavu ya gulugufe yopangidwa bwino kwambiri ilinso ndi cholumikizira cha ISO 5211 cholumikizira mwachindunji popanda mabulaketi, ndi ma bearing apamwamba ndi apansi kuti athandizire tsinde ndikuwonjezera nthawi yogwira ntchito.

 

Momwe Valavu ya Gulugufe Yogwira Ntchito Kwambiri Imagwirira Ntchito

Mfundo yogwirira ntchito ikhoza kufotokozedwa mwachidule m'magawo asanu:

1. Malo otsekedwa: Disikiyo imazunguliridwa molunjika ku njira yoyendera, ndikukanikiza pampando kuti izimitsidwe mwamphamvu ngati thovu.
2. Kutsegula koyamba (0° mpaka ~10°): Kusinthasintha kwa mawonekedwe kumapangitsa kuti diski inyamuke kuchoka pampando nthawi yomweyo, zomwe zimaswa kulumikizana ndikuchotsa kutsetsereka kwa kugundana.
3. Pakati pa stroke (~10° mpaka 80°): Disikiyi imazungulira mkati mwa njira yoyendera popanda kukhudzana ndi mpando, zomwe zimapangitsa kuti mphamvu yogwirira ntchito ikhale yochepa kwambiri komanso kuti isawonongeke kwambiri.
4. Njira yomaliza (~80° mpaka 90°): Disiki imabwerera pampando pokhapokha ngati yatsekedwa bwino.
5. Kutseka: Mphamvu yotsekera imagwiritsidwa ntchito makamaka ndi kupanikizika kwa mzere, osati ndi mphamvu ya actuator; kupanikizika kwakukulu kumawonjezera kulimba kwa mpando.

Kuchita kwa kamera iyi ndiye chinthu chofunikira kwambiri chomwe chimasiyanitsa valavu ya gulugufe yogwira ntchito bwino ndi kapangidwe kokhazikika. Mu valavu yokhazikika, diskiyo imakhala ikukhudzana nthawi zonse ndi mpando panthawi yonse yozungulira madigiri 90, zomwe zimapangitsa kuti iwonongeke mwachangu, ikufunika mphamvu zambiri, komanso kuti ikhale ndi nthawi yochepa yogwirira ntchito.

 

Valavu ya Gulugufe Yogwira Ntchito Kwambiri vs. Valavu ya Gulugufe Yozungulira: Kuyerekeza Mbali ndi Mbali

Kwa akatswiri a uinjiniya ndi ogula omwe amayesa kusankha ma valve, kufananiza pakati pa ma valve a gulugufe ozungulira (Gulu A) ndi ma valve a gulugufe opambana (Gulu B) ndikofunikira:

Vavu ya gulugufe yozungulira imalamulira makampani amadzi ndi madzi otayira chifukwa ndi yosavuta, yodalirika, komanso yolimba ngati thovu yokhala ndi mpando wofewa. Komabe, pakugwiritsa ntchito kulikonse komwe kumakhudza kupsinjika kopitilira 250 PSI, kutentha kopitilira 180°C, ma hydrocarbon, nthunzi, kapena mankhwala owononga, valavu ya gulugufe yogwira ntchito bwino ndiyo chisankho choyenera chaukadaulo.

 

Ubwino ndi Kuipa kwa Ma Valves a Gulugufe Ogwira Ntchito Kwambiri

Ubwino

Zoyipa

Kapangidwe ka offset kamapanga magwiridwe antchito abwino a seal, mphamvu yochepa yamagetsi, komanso kutsika kwamphamvu kwa mphamvu kuposa ma valve a gulugufe wamba, koma maubwino awa amabwera pamtengo wokwera poyamba.

 

Kugwiritsa Ntchito Ma Vavu a Gulugufe Ogwira Ntchito Kwambiri

Ma valve a gulugufe ogwira ntchito bwino ndi ofunikira kwambiri m'mafakitale osiyanasiyana komwe kudalirika, kutayikira konse, komanso kapangidwe kakang'ono ndikofunikira:

Mafuta ndi Gasi

• Kupatula kwa hydrocarbon ndi mizere yodutsa
• Mapaipi a mafuta osakonzedwa ndi gasi wachilengedwe (kutulutsa, kutumiza, ndi kugawa)
• Kutulutsa ndi kutsitsa kwa compressor station
• Kupatula famu ya thanki
• Kusamalira mpweya wowawasa (ndi zipangizo zogwirizana ndi NACE MR0175)

Kukonza Mankhwala ndi Petrochemical

• Kusamalira mankhwala owononga (ma acid, alkali, caustics, mankhwala a chlorine)
• Machitidwe obwezeretsa zosungunulira
• Mizere yopangira polima
• Zotsukira madzi owawasa
• Ma reactor a mankhwala otentha kwambiri

Kupanga Mphamvu

• Makina ozizira a madzi (ozungulira ndi osamalira madzi)
• Kupatula kwa condenser
• Mizere yotulutsira nthunzi (ma valve atatu ochotsera nthunzi yotentha kwambiri)
• Chodutsa madzi ophikira boiler
• Kudzipatula kwa mpweya wolowa mu turbine ya gasi

Kuchiza Madzi ndi Madzi Otayira

• Kumwa ndi kugawa madzi osaphika (kugwiritsa ntchito nthawi zambiri)
• Machitidwe osinthira osmosis
• Njira zosefera za Membrane
• Kugwiritsa ntchito mpweya wogaya chakudya
• Cholowera ndi chotulutsira Clarifier

Makampani a HVAC, Marine, ndi Ena

• Madzi ozizira ndi makina otenthetsera madzi otentha
• Ma network otenthetsera ndi kuziziritsa m'madera
• Makina oziziritsa madzi a m'nyanja ndi madzi a moto (matupi amkuwa a nickel aluminiyamu a mkuwa a madzi a m'nyanja)
• Chomera chochotsa mchere m'madzi choponderezedwa kwambiri
• Zamkati ndi pepala (kukonzekera katundu, kubwezeretsa mankhwala)
• Mapaipi odulira matope ndi kusamalira ming'alu
• Sayansi ya zamankhwala ndi zamoyo (madzi oyera, nthunzi yoyera)

Malinga ndi kafukufuku wamsika, mafakitale omwe amafuna kuwongolera bwino kayendedwe ka madzi—monga mafuta ndi gasi, kupanga magetsi, ndi kukonza mankhwala—ndizo zomwe zimapangitsa kuti ma valve a butterfly azigwiritsidwa ntchito kwambiri. Ma valve atatu, makamaka, amalimbikitsidwa kwambiri pakugwiritsa ntchito mankhwala, magetsi, ndi kuyeretsa, kuphatikizapo kuchotsa mpweya wa shale.

 

Mtengo wa Valavu ya Gulugufe Wapamwamba: Zoyendetsa ndi Ma Ranges Ofunika Kwambiri

Kwa akatswiri ogula zinthu, kumvetsetsa zomwe zimatsimikiza mtengo wa valavu ya gulugufe yogwira ntchito bwino ndikofunikira kwambiri kuti mupange bajeti yolondola.

Zinthu Zofunika Kwambiri Zomwe Zimakhudza Mtengo

Mitengo Yoyimira (Yosonyeza)

Dziwani: Mitengo ndi yodziwikiratu ndipo imasintha kutengera kusinthasintha kwa msika wazinthu ndi zofunikira zina zaukadaulo. Pemphani mtengo wa kampani pa fomu yanu.

Zofunika pa Mtengo Wonse wa Umwini (TCO)

Ngakhale kuti valavu ya gulugufe yogwira ntchito bwino imakhala ndi mtengo wokwera wogulira poyamba kuposa valavu yozungulira, mtengo wake wonse wa umwini pa nthawi yonse ya zida nthawi zambiri umakhala wotsika chifukwa cha:

1. Kukonza mipando nthawi yayitali - Kuchepetsa kuvala mipando kumatanthauza kuti mipando siisinthidwa pafupipafupi
2. Mphamvu yotsika yogwiritsira ntchito mphamvu - Kuchepa kwa torque kumathandizira ma actuator ang'onoang'ono komanso kuchepetsa ndalama zothandizira
3. Palibe chilango cha utsi wothawa - Kutseka tsinde bwino kumapewa ndalama zotsatizana ndi malamulo
4. Nthawi yayitali yogwira ntchito - Nthawi yogwira ntchito ya zaka 10-15 mu ntchito yapakatikati, poyerekeza ndi zaka 5-8 pa mapangidwe ozungulira omwe ali ndi mikhalidwe yofanana

Ma valve a gulugufe ogwira ntchito bwino nthawi zambiri amakhala otsika mtengo kuposa ma valve a mpira kapena pulagi ofanana kukula ndi kuyesedwa, komabe amapereka mphamvu yofanana kapena yabwino yotsekera - zomwe zimapangitsa kuti akhale chisankho chabwino kwambiri pa ntchito zambiri zoyatsira/kutseka zomwe sizikufuna kutulutsa madzi.

 

Momwe Mungadziwire Valavu ya Gulugufe Yogwira Ntchito Kwambiri

Kwa akatswiri ogula zinthu omwe akukonzekera RFQ kapena oda yogulira, zinthu zotsatirazi ziyenera kufotokozedwa kuti zitsimikizire kusankha kolondola:

 

Miyezo Yofunika ndi Ziphaso