Ukuhlaziywa kwenkinga evamile ye-valve isethulo sobuchwepheshe bomkhiqizo we-valve eyonga i-carbon ephansi

Ukuhlaziywa kwenkinga evamile ye-valve isethulo sobuchwepheshe bomkhiqizo we-valve eyonga i-carbon ephansi

I-valve yokusika kufanele ivalwe ngokuqinile ngangokunokwenzeka
Uma iphansi imfuneko yokuvuza ye-valve enqamukile, kungcono ukuvuza kwe-valve yophawu oluthambile iba ngaphansi kakhulu, umphumela wokunqamuka muhle vele, kodwa awukwazi ukuguga, ukwethembeka okubi. Kusukela ekuvuzeni nokuncane, okuvalekayo kanye nezinga elikabili elithembekile, ukunqanyulwa kophawu oluthambile kungcono kunokusikwa uphawu oluqinile. Njengomsebenzi ogcwele we-valve elawula ukukhanya kwe-ultra-light, evalwe futhi yapakishwa ngokuvikelwa kwe-alloy ukumelana nokugqoka, ukwethembeka okuphezulu, izinga lokuvuza lika-10-7, likwazile ukuhlangabezana nezidingo ze-valve yokusika.
I-valve evala uphawu kabili ayikwazi ukusetshenziswa njenge-valve eyisikiwe
Inzuzo ye-spool ye-valve enezihlalo ezimbili ukuthi isakhiwo sebhalansi yamandla sivumela ukuthi umehluko wengcindezi ube mkhulu, kuyilapho ububi bayo obuvelele ukuthi izindawo ezimbili zokuvala azikwazi ukuxhumana kahle ngesikhathi esisodwa, okuholela ekuvuzeni okukhulu. Uma kusetshenziswa ngokungemthetho futhi ngenkani ukunqamula umcimbi, ngokusobala umphumela awumuhle, ngisho noma wenze ukuthuthukiswa okuningi (njenge-valve yemikhono eqinile ephindwe kabili), ayifiseleki.
I-valve enezihlalo ezimbili kulula uku-oscillate uma isebenza ngokuvula okuncane
Ngomgogodla owodwa, lapho okuphakathi kuwuhlobo oluvulekile lokugeleza, ukuzinza kwe-valve kuhle; Lapho ukugeleza okuphakathi kuvaliwe, ukuzinza kwe-valve kubi. I-valve yesihlalo esiphindwe kabili inama-spool amabili, i-spool ephansi ingaphakathi kokugeleza ivaliwe, i-spool ephezulu isekugelezeni okuvulekile, ngakho-ke, emsebenzini omncane wokuvula, ukugeleza okuvaliwe kohlobo lwe-spool kulula ukubangela ukudlidliza kwe-valve, lokhu isizathu esenza ukuthi i-valve yezihlalo ezimbili ingakwazi ukusetshenziselwa umsebenzi omncane wokuvula.
Ukusebenza kwe-anti-blocking ye-valve ye-stroke eqondile ayilungile, futhi ukusebenza kwe-anti-blocking ye-Angle stroke valve kuhle.
I-spool ye-valve ye-stroke eqondile inyakazisa mpo, futhi okumaphakathi kuwukugeleza okuvundlile ukungena nokuphuma egunjini le-valve isiteshi sokugeleza kufanele sibuyele emuva, ukuze indlela yokugeleza kwevalvu ibe yinkimbinkimbi impela (umumo ofana nohlobo luka-S oluhlanekezelwe). Ngale ndlela, kunezindawo eziningi ezifile, ezihlinzeka ngendawo yemvula ye-medium, futhi ngokuhamba kwesikhathi, kubangele ukuvinjelwa. Isiqondiso se-Angle stroke valve throttling yindlela evundlile, okuphakathi kugeleza futhi kuphume ngokuvundlile, futhi kulula ukususa okuphakathi okungahlanzekile. Ngesikhathi esifanayo, indlela yokugeleza ilula, futhi isikhala semvula esiphakathi sincane kakhulu, ngakho-ke i-valve ye-Angle stroke inokusebenza okuhle kokuvimbela.
Kungani isiqu se-valve yokulawula i-stroke sisincane?
Kuhilela isimiso esilula somshini: ukungqubuzana okukhulu kokuslayida kanye nokungqubuzana okuncane okugoqayo. Straight stroke valve stem up and down ukunyakaza, ukupakisha sicindezelwe kancane kancane, izobeka isiqu valve zisongwe kakhulu, ukukhiqiza umehluko omkhulu emuva. Ngenxa yalesi sizathu, isiqu se-valve senzelwe ukuba sibe sincane kakhulu, futhi ukupakisha kuvame ukusetshenziswa nge-coefficient encane yokupakisha i-PTFE, ukuze kuncishiswe ukuhlukana, kodwa inkinga ukuthi i-valve stem incane, kulula ukugoba. , futhi impilo yokupakisha ifushane. Ukuze uxazulule le nkinga, indlela engcono kakhulu ukusebenzisa i-valve stem, okungukuthi, i-Angle stroke ye-valve stem, i-valve yayo iphindwe izikhathi ezingu-2 ~ 3 kune-stroke eqondile ye-valve stem, nokukhetha isikhathi eside. -impilo yokupakisha i-graphite, ukuqina kwesiqu kuhle, impilo yokupakisha yinde, i-torque yokungqubuzana incane, umehluko omncane wokubuya.
Umehluko wengcindezi ye-Angle stroke type valve mkhulu
I-valve yohlobo lwe-angular stroke inqamule umehluko wengcindezi mkhulu, ngoba amandla aphumela ku-spool noma ipuleti le-valve ku-torque ye-rotation shaft mancane kakhulu, ngakho-ke, angakwazi ukumelana nomehluko omkhulu wengcindezi.
Ama-socket valves esikhundleni se-single - kanye nama-valve anezihlalo ezimbili awazange asebenze
I-sleeve valve, eyaphuma ngeminyaka yawo-1960, yayisetshenziswa kakhulu ekhaya naphesheya ngeminyaka yawo-1970. Embonini ye-petrochemical eyethulwa ngawo-1980, ivalvu yemikhono yaba nenani elikhulu. Ngaleso sikhathi, abantu abaningi babekholelwa ukuthi i-valve ye-sleeve ingangena esikhundleni se-valve yesihlalo esisodwa nesikabili futhi ibe isizukulwane sesibili semikhiqizo. Namuhla, akunjalo, i-valve yesihlalo esisodwa, i-valve yokuhlala kabili, i-sleeve valve isetshenziswa ngokulinganayo. Lokhu kungenxa yokuthi i-sleeve valve ithuthukisa kuphela ifomu le-throttling, ukuzinza kanye nokugcinwa kangcono kune-valve yesihlalo esisodwa, kodwa isisindo sayo, izinkomba zokuvimba kanye nokuvuza zihambisana ne-valve yesihlalo esisodwa kanye ne-double, ingakwazi kanjani ukufaka i-valve yesihlalo esisodwa nesikabili. ? Ngakho, kufanele kwabiwe.
Indlela yokukhipha usawoti emanzini kusetshenziswa i-valve uvemvane enerabha enomugqa, i-fluorine lined diaphragm valve impilo yesevisi emfushane
I-Desalting water medium iqukethe ukugcwala okuphansi kwe-asidi noma i-alkali, inokugqwala okukhulu kunjoloba. Ukugqwala kwerabha kubonakala ngokunwebeka, ukuguga namandla aphansi. Umphumela wokusetshenziswa kwe-valve uvemvane kanye ne-diaphragm valve efakwe irabha mubi. Umongo wukuthi irabha ayimelani nokugqwala. Ngemuva kokuthi i-valve ye-diaphragm yenjoloba ithuthukisiwe ukuze ikwazi ukumelana nokugqwala kwevalve ye-fluorine efakwe umugqa we-diaphragm, kodwa i-diaphragm ye-fluorine ene-diaphragm valve ayikwazi ukusukuma naphansi igoqe futhi iphukile, okuholela ekulimaleni komshini, ukuphila kwe-valve kufushane. Manje indlela engcono kakhulu ukusebenzisa i-valve yebhola yokwelapha amanzi, ingasetshenziswa iminyaka engu-5 kuya kwengu-8.
Ukusetshenziswa kwe-pneumatic valve piston actuator kuzokwanda
Ku-valve ye-pneumatic, i-piston actuator ingasebenzisa ngokugcwele ukucindezela komthombo womoya, usayizi we-actuator mncane kunefilimu, i-thrust inkulu, i-O-ring ku-piston inokwethenjelwa kakhulu kunefilimu, ngakho-ke izokwenza. zisetshenziswe kakhulu.
Ukukhetha kubaluleke ngaphezu kokubala
Ukubala nokukhetha kuqhathaniswa, ukukhetha kubaluleke kakhulu, kuyinkimbinkimbi kakhulu. Ngenxa yokuthi ukubala kuwukubala kwefomula elula kuphela, yona ngokwayo ayincikile ezingeni lefomula, kodwa incike ekunembeni kwemingcele yenqubo enikeziwe. Ukukhethwa kuhilela okuqukethwe okwengeziwe, ukunganaki okuncane, kuzoholela ekukhethweni okungalungile, hhayi nje kuphela kubangele ukuchithwa kwabasebenzi, izinsiza ezibonakalayo, izinsiza zezezimali, futhi ukusetshenziswa komphumela akulungile, ukuletha izinkinga eziningi zokusetshenziswa, njengokwethenjelwa. , impilo, ikhwalithi yokusebenza, njll.
Ntambama ngoSepthemba 1, "kwi-2010 Shanghai (yesibili) ye-Water Industry Hot Forum" ebanjwe yi-China Water Network, i-Shanghai Municipal Engineering Design and Research Institute, i-sewage yasemadolobheni, i-Shanghai Municipal Drainage Co., LTD., kanye ne-China Association for Isayensi Nobuchwepheshe, i-Zhengzhou Zheng Butterfly valve Co., LTD. Unjiniyela omkhulu u-Zhao Guoxi wethule ubuchwepheshe obumbalwa bomkhiqizo wokonga amandla ekhabhoni ephansi.

U-Zhao Guoxi wethule izinhlobo ezintathu ezintsha zamavalvu, okuyi-eccentric half ball valve, i-oblique seat hard seal evala kancane ivalve yokuhlola kanye nomfutho ogcwele we-high speed exhaust valve.

I-eccentric hemisphere valve body yamukela isakhiwo sebhola, ukuqina kuhle, amandla aphezulu; I-valve disc ithatha isakhiwo se-hemispherical, i-valve shaft ithatha isakhiwo se-semi-axial, futhi idiski ye-valve ijikeleza ngo-90 ° lapho ivaliwe ngokugcwele futhi ivuliwe ngokugcwele. Esimeni esivuleke ngokugcwele, i-disc ye-valve yonke ingena emgodini womzimba, ukuze igumbi elingaphakathi le-valve lonke livuleke. I-valve yomzimba kanye ne-valve disc sealing surface, kusetshenziswa ubuchwepheshe bokuvela kwe-alloy eqinile, ubulukhuni obuphezulu, ukumelana nokugqoka okuphezulu, kungasika i-metal metal noma i-braid sundries; Ingamelana nokukhuhlwa kwe-slurry noma i-granular flow medium. Ingakwazi ukususa ngokuzenzakalelayo ukungcola endaweni evalekile. I-valve disc yamukela ukwakheka okukhulu kwe-eccentricity, ukuvala indawo ngaphandle kokungqubuzana okuvulekile nokuvala, ukushintsha okuguquguqukayo, impilo ende yesevisi. I-valve shaft seal yenziwe ngendandatho ye-graphite eguquguqukayo noma i-O-ring. I-shaft seal ingashintshwa futhi ilungiswe ngaphandle kokukhipha idivayisi yokushayela.

Isihlalo esiqinile se-hard seal yokuvala isheke isihlalo se-valve sithambekele, i-valve yokuvula nokuvala i-stroke ifushane, ukusebenza kokuvula nokuvala kuhle. Ipuleti le-Butterfly liyisakhiwo sokuchema kabili, ukunyakaza kwe-valve nokuvala kunengqondo. Insimbi engagqwali eqinile seal pair, impilo ende yesevisi, ukulungiswa kwamahhala esikhundleni. Izakhi zesakhiwo se-valve zinezici ezinhle zokugeleza, ukumelana nokugeleza okuncane nokonga amandla. Ukuvala okusheshayo nokunensayo, kungavimbela ngempumelelo isando samanzi. Ipuleti le-Butterfly plate/valve shaft ivulekile futhi ivaleke ibe lula, ayibambeki.

Inenkinga yokukhipha amapayipi okuhambisa amanzi ngomfutho, yizinkinga zobuchwepheshe zamashumi eminyaka emhlabeni wonke, ngenxa yokungcola okuphuma kwepayipi lamanzi okucindezelayo, ukugeleza kwamanzi kwesigaba sesibili kanye nokusebenza okuzinzile, isando samanzi ebhulohweni lokunqamula amapayipi, ukucindezela kwawo kuvame ukufika ku-200 ~ 400 m ikholomu yamanzi. , isibalo esithile sobunjiniyela, ngisho namakhilomitha acishe abe ngamakhilomitha, anele ukubangela noma yimuphi * * amadigri omonakalo wamapayipi okuhambisa amanzi. Eqinisweni, amaphrojekthi amakhulu okuhanjiswa kwamanzi kanye nezingozi zamapayipi okuhambisa amanzi emadolobheni ziningi. Ngokusho idatha efanele, emadolobheni amakhulu China ezifana Beijing, Shanghai, Hong Kong kanye nezinye inethiwekhi amanzi supply ipayipi ipayipi waqhuma izikhathi ezingaba ngu-2000, inhlokodolobha yesifundazwe jikelele ipayipi lonyaka waqhuma cishe izikhathi 1000, isizathu esiyinhloko emanzini iyona qeda. ayimahhala. Inhloso yocwaningo mayelana ne-valve yokukhipha umfutho ogcwele wesivinini esikhulu ukuxazulula inkinga yokukhipha komoya wepayipi lokuphakela amanzi ngomfutho akuhlanzekile futhi akuzinzile, kanye nokunciphisa noma ukuqeda ngokuphelele isifo esinenkani sepayipi eliphakela amanzi emadolobheni. ukuqhuma.

I-valve yokukhipha isivinini esigcwele yokucindezela okukhulu ingaba sepayipini lokucindezela amanzi kanye nesigaba segesi ngaphansi kwesimo sokugeleza esifanayo, ayikhiqizi “ukusekelwa komoya”, ingaba ivalve yokukhipha isivinini esiphezulu eqhubekayo; Asikho isidingo sokukhipha igesi eyimanuwali, kungaba ukukhishwa ngesivinini esikhulu kwanoma iyiphi igesi yepayipi eyinkimbinkimbi ezenzakalelayo ngempela; Inomsebenzi wokubhafa ngokuhambisana nezidingo zethiyori yokuvikela isando samanzi, futhi inomphumela omuhle ekuvimbeleni ukuqala kwesando samanzi sepompo, ukumisa isando samanzi sepompo nokuqeda umonakalo wokuzulazula komfutho wepayipi; I-exhaust seal isithuthukisiwe futhi inengqondo, enqoba ukukhubazeka kokusebenza kwe-valve yokukhipha umoya evamile evame ukusebenzisa amanzi amaningi.