Vavu wamba vuto kusanthula low carbon mphamvu zopulumutsa vavu ukadaulo wa mankhwala chiyambi

Vavu wamba vuto kusanthula low carbon mphamvu zopulumutsa vavu ukadaulo wa mankhwala chiyambi

Vavu yodulidwa iyenera kutsekedwa mwamphamvu momwe zingathere
Kutsika kwa valavu yodulira kutayikira, ndiye kuti kutayikira kwa valavu yosindikizira yofewa kumakhala kotsika kwambiri, kutsika kwake kumakhala kwabwino, koma sikutha kuvala, kudalirika kosadalirika. Kuchokera pakutayikira ndi kakang'ono, kusindikiza komanso kudalirika kawiri, kudulidwa kofewa kuli bwino kuposa kudulidwa kolimba. Monga valavu yoyang'anira kuwala kokwanira, yosindikizidwa ndi yodzaza ndi chitetezo cha alloy chosavala, kudalirika kwakukulu, kuthamanga kwa 10-7, yatha kukwaniritsa zofunikira za valve yodulidwa.
Vavu yosindikizira kawiri singagwiritsidwe ntchito ngati valavu yodulidwa
Ubwino wa valavu ya valavu yokhala ndi mipando iwiri ndikuti mphamvu yolinganiza mphamvu imalola kusiyana kwapakati kukhala kwakukulu, pamene choyipa chake chapadera ndi chakuti malo awiri osindikizira sangakhale ogwirizana nthawi imodzi, zomwe zimapangitsa kuti pakhale kutaya kwakukulu. Ngati agwiritsidwa ntchito mwachisawawa komanso mokakamiza kuti adutse mwambowu, mwachiwonekere zotsatira zake sizili zabwino, ngakhale zitakhala kuti zasintha zambiri (monga valavu yosindikizira kawiri), sizofunika.
Valavu yokhala ndi mipando iwiri ndiyosavuta kugwedezeka mukamagwira ntchito ndikutsegula pang'ono
Kwa pachimake chimodzi, pamene sing'anga ikutuluka mtundu wotseguka, kukhazikika kwa valve ndikwabwino; Pamene sing'anga imatsekedwa, kukhazikika kwa valve kumakhala kosauka. Valve yapampando iwiri imakhala ndi spool ziwiri, spool yapansi ili mumtsinje wotsekedwa, spool yapamwamba imakhala yotseguka, kotero, mu ntchito yaing'ono yotsegulira, kutuluka kwa mtundu wa spool ndikosavuta kuyambitsa kugwedezeka kwa valve, izi. ndi chifukwa chake valavu yokhala ndi mipando iwiri singagwiritsidwe ntchito potsegula ntchito yaying'ono.
Ntchito yoletsa kutsekereza ya valve yowongoka ndiyosauka, ndipo anti-blocking performance ya Angle stroke valve ndiyabwino.
Chowongoka chowongoka cha valve spool ndi vertical throttling, ndipo sing'anga ndi yopingasa yolowera mkati ndi kunja kwa chipinda cholowera cha valve iyenera kubwerera mmbuyo, kotero kuti njira yothamanga ya valve imakhala yovuta kwambiri (mawonekedwe monga S-mtundu wopindika). Mwanjira iyi, pali madera ambiri akufa, omwe amapereka danga la mvula ya sing'anga, ndipo m'kupita kwa nthawi, zimayambitsa kutsekeka. Mayendedwe a Angle stroke valve throttling ndi njira yopingasa, sing'anga imalowa ndi kutuluka mopingasa, ndipo ndikosavuta kuchotsa sing'anga yodetsedwa. Panthawi imodzimodziyo, njira yothamanga ndi yophweka, ndipo malo otsetsereka apakati ndi ochepa kwambiri, choncho valve ya Angle stroke imakhala ndi ntchito yabwino yoletsa.
Chifukwa chiyani tsinde la valve yowongolera sitiroko ndi yowonda?
Zimaphatikizapo mfundo yosavuta yamakina: mikangano yayikulu yotsetsereka ndi mikangano yaying'ono. Molunjika sitiroko valavu tsinde mmwamba ndi pansi kayendedwe, kunyamula pang'ono mbamuikha pang'ono, izo adzaika valavu tsinde wokutidwa zolimba kwambiri, kutulutsa lalikulu kumbuyo kusiyana. Pachifukwa ichi, tsinde la valavu lapangidwa kuti likhale laling'ono kwambiri, ndipo kulongedzako kumagwiritsidwa ntchito kawirikawiri ndi kagawo kakang'ono kamene kakukangana PTFE kulongedza, kuti achepetse kusiyana, koma vuto ndiloti tsinde la valve ndilochepa, losavuta kupindika. , ndipo moyo wonyamula katundu ndi waufupi. Kuti athetse vutoli, njira yabwino kwambiri ndiyo kugwiritsa ntchito tsinde la valavu yoyendayenda, ndiko kuti, kugunda kwa Angle kwa tsinde la valve, tsinde lake la valve ndi 2 ~ 3 nthawi zambiri kuposa tsinde la valve, ndi kusankha kwautali. -Kunyamula ma graphite, kuuma kwa tsinde ndikwabwino, kunyamula moyo ndiutali, torque yolimbana ndi yaying'ono, kusiyana kwakung'ono kobwerera.
Kusiyana kwamphamvu kwa valve yamtundu wa Angle stroke ndikokulirapo
Angular stroke mtundu valavu kudula kuthamanga kusiyana ndi lalikulu, chifukwa sing'anga mu spool kapena valavu mbale zotsatira mphamvu pa kasinthasintha shaft torque ndi yaing'ono kwambiri, choncho, akhoza kupirira kupanikizika kwakukulu kusiyana.
Ma valve azitsulo m'malo mwa amodzi - ndi ma valve okhala ndi mipando iwiri sanagwire ntchito
Valve ya manja, yomwe idatuluka m'ma 1960, idagwiritsidwa ntchito kwambiri kunyumba ndi kunja m'ma 1970. Pafakitale ya petrochemical yomwe idayambitsidwa m'ma 1980s, valavu ya manja inali ndi chiŵerengero chokulirapo. Panthawiyo, anthu ambiri ankakhulupirira kuti valavu ya manja imatha kusintha valavu imodzi ndi iwiri yokhala ndi mipando yambiri ndikukhala mbadwo wachiwiri wa mankhwala. Masiku ano, izi siziri choncho, valavu ya mpando umodzi, valavu yokhala ndi mipando iwiri, valve ya manja imagwiritsidwa ntchito mofanana. Izi ndichifukwa choti valavu ya manja imangowonjezera mawonekedwe a throttling, kukhazikika ndi kukonza bwino kuposa valavu imodzi yokha, koma kulemera kwake, kutsekereza ndi zizindikiro zowonongeka zimagwirizana ndi valavu imodzi ndi iwiri yokhala ndi mpando, ingasinthe bwanji valavu imodzi ndi iwiri ya mpando. ? Choncho, iyenera kugawidwa.
Desalting madzi sing'anga pogwiritsa ntchito mphira mizere gulugufe vavu, fluorine lined diaphragm vavu moyo waufupi utumiki
Desalting water sing'anga imakhala ndi asidi otsika kapena alkali, amawononga kwambiri mphira. Kuwonongeka kwa mphira kumadziwika ndi kukulitsa, kukalamba ndi mphamvu zochepa. Kugwiritsa ntchito valavu ya butterfly ndi diaphragm valve yokhala ndi mphira ndikosavuta. Chofunikira ndichakuti mphira sulimbana ndi dzimbiri. Pambuyo mphira akalowa diaphragm valavu ndi bwino kuti dzimbiri kukana fluorine ali mzere diaphragm valavu, koma diaphragm wa fluorine alimbane diaphragm valavu sangathe kuyimirira ndi pansi lopinda ndi wosweka, chifukwa mawotchi kuwonongeka, moyo wa valavu ndi lalifupi. Tsopano njira yabwino ndikugwiritsa ntchito valavu yamadzi yopangira madzi, imatha kugwiritsidwa ntchito kwa zaka 5 mpaka 8.
Kugwiritsiridwa ntchito kwa ma valve a pneumatic piston actuator kudzachulukirachulukira
Kwa valavu ya pneumatic, pisitoni yoyendetsa pisitoni imatha kugwiritsa ntchito mokwanira mphamvu ya mpweya, kukula kwa actuator ndi yaying'ono kuposa filimuyo, kukakamiza kumakhala kwakukulu, mphete ya O mu pisitoni ndi yodalirika kuposa filimuyo, kotero izo zidzatero. kugwiritsidwa ntchito kwambiri.
Kusankha ndikofunika kwambiri kuposa kuwerengera
Kuwerengera ndi kusankha poyerekeza, kusankha ndikofunikira kwambiri, zovuta kwambiri. Chifukwa kuwerengera ndi njira yosavuta yowerengera, yokhayo sikudalira mlingo wa chilinganizo, koma zimadalira kulondola kwa magawo omwe apatsidwa. Kusankhidwa kumaphatikizapo zambiri, kusasamala pang'ono, kudzatsogolera kusankhidwa kosayenera, osati kungoyambitsa kuwonongeka kwa anthu, chuma chakuthupi, chuma chachuma, komanso kugwiritsa ntchito zotsatira zake sikoyenera, kubweretsa mavuto angapo ogwiritsira ntchito, monga kudalirika. , moyo, khalidwe la ntchito, etc.
Madzulo a September 1, mu "2010 Shanghai (Wachiwiri) Water Industry Hot Forum" yomwe inachitikira ndi China Water Network, Shanghai Municipal Engineering Design and Research Institute, zimbudzi zam'tawuni, Shanghai Municipal Drainage Co., LTD., ndi China Association for Sayansi ndi Zamakono, Zhengzhou Zheng Butterfly valve Co., LTD. Katswiri wamkulu Zhao Guoxi adayambitsa ukadaulo wambiri wopulumutsa mphamvu ya carbon.

Zhao Guoxi adayambitsa mitundu itatu yatsopano ya mavavu, yomwe ndi eccentric theka la mpira valavu, mpando wokhotakhota wolimba wotsekera pang'onopang'ono kutseka valavu ndi kuthamanga kwathunthu kwa valve yotulutsa liwilo.

Thupi la eccentric hemisphere valve limatenga mawonekedwe a mpira, kulimba kwake ndikwabwino, mphamvu ndi yayikulu; Disiki ya valve imatengera mawonekedwe a hemispherical, shaft ya valve imatenga semi-axial, ndipo diski ya valve imazungulira 90 ° ikatsekedwa kwathunthu ndikutsegulidwa kwathunthu. Pamalo otseguka bwino, valavu ya valve imalowa m'kati mwa thupi, kotero kuti chipinda chamkati cha valve sichimatsekedwa. Mavavu thupi ndi valavu chimbale kusindikiza pamwamba, pogwiritsa ntchito luso aloyi pamwamba, kuuma mkulu, mkulu kuvala kukana, akhoza kudula sing'anga zitsulo kapena kuluka sundries; Ikhoza kukana kukwapula kwa slurry kapena granular flow medium. Imatha kungochotsa dothi pamalo osindikizira. Vavu chimbale utenga lalikulu eccentricity dongosolo, kusindikiza pamwamba frictionless lotseguka ndi kutseka, kusintha kusintha, moyo wautali utumiki. Chisindikizo cha valve shaft chimapangidwa ndi mphete ya graphite yosinthika kapena O-ring. Chisindikizo cha shaft chingasinthidwe ndikusintha popanda kuchotsa chipangizo choyendetsa galimoto.

Mpando wokhotakhota wokhotakhota wokhazikika pang'onopang'ono kutseka valavu yoyang'ana mpando umakhala wopendekera, kutsegulira kwa valve ndi kutseka kwafupipafupi, kutsegula ndi kutseka ntchito ndikwabwino. Gulugufe mbale ndi iwiri kukondera dongosolo, ndi valavu kutsegula ndi kutseka kayendedwe ndi wololera. Chitsulo chosapanga dzimbiri cholimba chosindikizira, moyo wautali wautumiki, kukonzanso kwaulere. Mapangidwe a chipinda cha valve ali ndi makhalidwe abwino othamanga, kukana kuyenda kochepa komanso kupulumutsa mphamvu. Kutseka mwachangu komanso pang'onopang'ono, kumatha kuteteza nyundo yamadzi. Gulugufe mbale/vavu shaft yotseguka ndi kutseka yosinthika, osamamatira.

Kukhala ndi vuto la kutha kwa chitoliro chamadzi, ndizovuta zaukadaulo zazaka zambiri padziko lonse lapansi, chifukwa cha kupanikizika kwa chitoliro chamadzi, madzi a gasi otaya magawo awiri ndi ntchito yokhazikika, nyundo yamadzi mumlatho wapaipi, kuthamanga kwake nthawi zambiri mpaka 200 ~ 400 mgawo lamadzi. , mawerengedwe ena a uinjiniya, ngakhale pafupifupi makilomita, okwanira kuwononga madigiri * * aliwonse a chitoliro cha madzi. Ndipotu, ntchito zazikulu zotumizira madzi ndi ngozi zapaipi zoperekera madzi m'mizinda ndizochuluka. Malinga ndi deta yoyenera, mizinda ikuluikulu ya China monga Beijing, Shanghai, Hong Kong ndi zina zopezera madzi chitoliro maukonde pachaka chitoliro anaphulika pafupifupi 2000 nthawi, ambiri zigawo likulu mzinda pachaka chitoliro anaphulika za 1000 nthawi, chifukwa chachikulu pa madzi ndi utsi. si mfulu. Cholinga cha kafukufuku pa zonse kuthamanga mkulu liwiro utsi valavu ndi kuthetsa vuto la mpweya utsi wa payipi kuthamanga madzi payipi si woyera ndi wosakhazikika, ndi kuchepetsa kapena kuthetsa kwathunthu matenda amakani a m'tawuni madzi payipi payipi. kuphulika.

Valavu yothamanga kwambiri yothamanga kwambiri imatha kukhala mupaipi yapaipi yamadzi ndi gawo la mpweya pansi pamayendedwe omwewo, osatulutsa "thandizo la mpweya", imatha kukhala yopitilira muyeso wothamangitsa valavu; Palibe chifukwa chautsi wowonjezera wowonjezera, utha kukhala wothamanga kwambiri wamagetsi aliwonse ovuta a chitoliro moona valavu yotulutsa; Lili ndi ntchito yochepetsera molingana ndi zofunikira za chiphunzitso cha chitetezo cha nyundo ya madzi, ndipo imakhala ndi zotsatira zabwino poletsa kuyambika kwa nyundo ya madzi a pampu, kuyimitsa nyundo ya madzi a pampu ndikuchotsa kuwonongeka kwa kuthamanga kwa payipi; Chisindikizo chotulutsa mpweya ndi chotsogola komanso chololera, chomwe chimagonjetsa chilema cha valve wamba yotulutsa mpweya yomwe nthawi zambiri imakhala ndi madzi ambiri.