Ukuhlaziywa kwezindinganiso eziyi-16 kanye nezinkinga ezivamile okufanele zilandelwe ekuhlolweni kwe-valve hydrostatic

Ukuhlaziywa kwezindinganiso eziyi-16 kanye nezinkinga ezivamile okufanele zilandelwe ekuhlolweni kwe-valve hydrostatic Ukwakhiwa kwama-valve kuyinqubo eyinkimbinkimbi futhi elula. Umjikelezo wokukhiqiza wama-valve njengama-globe valves, ama-valve nama-disc valve ngokuvamile uthatha izinsuku ezintathu. Ama-valve kufanele ahlolwe zonke izinhlobo zezici. Ukuhlolwa kwengcindezi i-valve ye-sichuan ingathwala inani lokucindezela akukona ukuhlangabezana nezidingo zokukhiqiza kanye nezidingo zokukhiqiza, ukuhlolwa komfutho wamanzi we-valve jikelele kufanele kulandele izindinganiso ezilandelayo nezinkinga ezivamile: (1) Ngaphansi kwezimo ezivamile, i-valve ayenziwa ukuthi icindezele. ukuhlolwa kwamandla, kodwa ngemva kokulungiswa kwepuleti yesekethe yamafutha kanye ne-valve yokugeleza okukodwa noma ipuleti lesekhethi kawoyela kanye ne-valve yokugeleza eyodwa eyonakaliswe ukuguguleka kufanele kwenziwe ukuhlolwa kwamandla okucindezelayo. Kumavalvu, umfaniswano kanye nengcindezi yokubuyisela nokunye ukuhlola kuzohambisana nezidingo zemiyalelo yokusebenzisa kwawo kanye nemininingwane ehlobene. (2) Ukuhlanganiswa kwe-valve kufanele kuhlolwe amandla okucindezela nokuvala. Ukuhlolwa kwesampula yama-valve aphansi okungama-20%, njengokungafanelekile kufanele kube ukuhlolwa okungu-100%; Amavalvu omfutho ophakathi nendawo nophezulu kufanele ahlolwe ngo-100%. (3) Ngesikhathi sokuhlolwa, ingxenye yomhlangano we-valve kufanele ibe lula kakhulu ukwenza indawo yokuhlola. (4) i-valve yohlobo lokuxhunywa kwe-welding kagesi, lapho ukuhlolwa kwengcindezi yamanzi ye-huang plate kungalungile, ukuvala uphawu lwe-cone noma u-O-ring sealing kungasetshenziswa ukwenza ukuhlolwa kokucindezela kwamanzi. (5) Uma ukuhlolwa kokucindezela kwe-hydraulic, igesi yevalvu izosuswa ngangokunokwenzeka. (6) Ukucindezela kufanele kukhuliswe kancane kancane ngesikhathi sokuhlolwa, futhi akuvunyelwe ukwandisa ukucindezela kakhulu futhi ngokuzumayo. (7) Ukuhlolwa kwamandla acindezelayo kanye nobude besikhathi sokuhlolwa kohlobo lokuvala kuvamise ukuba yi-2 -- 3min, ukhiye kanye nevalvu eyingqayizivele kufanele kuqhubeke imizuzu emi-5. Ubude besikhathi sokuhlolwa kwama-valve obubanzi obuncane bungaba bufushane, futhi ubude besikhathi sokuhlola ama-valves amakhulu angaba side. Phakathi nayo yonke inqubo yokuhlolwa, uma kukhona ukungabaza, isikhathi sokuhlola singanwetshwa. Ngesikhathi sokuhlolwa kwamandla acindezelayo, ipuleti lesekhethi kawoyela kanye nevalvu yokugeleza eyodwa akumele kuvunyelwe ukujuluka noma kuvuze. Ukuhlolwa kokuvala, i-valve ejwayelekile iqedwa kanye kuphela, ama-valve, ama-valve anengcindezi ephezulu kanye namanye ama-valve aluhlaza adinga ukwenziwa izikhathi ezi-2. Lapho ukuhlolwa, i-voltage ephansi, ububanzi obukhulu be-valve engabalulekile kanye nezidingo zayo zokuvumela i-valve yokuvuza kwamanzi, vumela inani elincane lokuphuma kwamanzi; Ngenxa yokuthi imithethonqubo yama-valve ejwayelekile, ama-valve ezitshalo zamandla, ama-Marine valves namanye ama-valve ahlukile, imithetho yokuvuza kufanele isetshenziswe ngokuvumelana nezidingo ezifanele. (8) I-valve yendlela eyodwa ayizona izingxenye ezivaliwe zokuhlolwa kokuvala, kodwa ukuhlolwa kwamandla acindezelayo nezinto zokupakisha kanye nokuhlolwa kokuvala i-gasket. (9) Ekuhlolweni kwe-hydrostatic, amandla okuvala amavalvu avumela kuphela amandla avamile omuntu oyedwa ukuthi avale; Unganciki kumathuluzi akhethekile njengamabha (ngaphandle kwama-torque wrenches) ukuze uthole ukushaqeka, lapho imbobo yokuphotha idlula kufika ku-320mm, vumela abantu ababili ukuthi bavale. (10) ivalvu evaleke phezulu kufanele ikhishwe empahleni yokugcwalisa ukuze kuhlolwe ukuvalwa, isikhulu esivala uphawu sivaliwe, sibheke ukuthi siyavuza yini. Uma usebenzisa umzimba we-steam ukuhlola, gcwalisa amanzi ebhokisini le-junction elingaqhumi ukuze lihlolwe. Ukuhlolwa kokuvala impahla yokugcwalisa, ukuvala uphawu akuvunyelwe ezingxenyeni eziseduze. (11) Noma iyiphi ivalvu enezinto eziphushayo, zivivinye ukuvaleka kwayo kusetshenziswa okokusebenza okuphushayo ukuvala ivalvu ukuze kwenziwe ukuhlolwa kokuvala. Lapho isitha sinyakaza ukusunduza okokusebenza, ukuhlolwa kokuvala ivalvu kufanele kwenziwe. (12) ukuhlolwa kwamandla okucindezelayo nokuhlolwa kokuvala kufakwe ku-valve yokungena ye-valve yokusabalalisa, futhi amandla okucindezela nokuhlolwa kokuvala kwenziwa ku-valve yokusabalalisa; Lapho i-valve yokusabalalisa ivuliwe, kufanele futhi ivulwe. (13) Uma i-valve yensimbi yengulube ihlola amandla acindezelayo, sebenzisa isando sethusi ukuze ubambe ipuleti lesekhethi kawoyela kanye nevalvu yokugeleza eyodwa, hlola ukuthi akukho yini ukuvuza kwamanzi. (14) ukuhlolwa kwe-valve, ngaphezu kwe-valve yepulaki iyadingeka ukuze kuvunyelwe uwoyela phezulu, amanye ama-valve awavunyelwe ukuhlola uwoyela phezulu. (15) ukuhlolwa kwe-valve ye-hydraulic, i-valve flange ku-valve clamping force ayifaneleki enkulu kakhulu, ukuze kuvinjwe ukuguqulwa kwe-valve, ukulimaza umphumela wangempela wokuhlolwa (i-valve yensimbi yengulube uma icindezelwe kakhulu, izoqhubeka nokulimala) . (16) Ngemva kokuphothulwa kokuhlolwa kwe-hydraulic ye-valve, ukugeleza kwamanzi ku-valve kufanele kuhlanzwe ngokushesha, futhi irekhodi lokuhlola kufanele lenziwe. Ukuhlolwa kwe-valve hydrostatic wukuhlolwa okufanele kwenziwe ngaphambi kokushiya ifektri, okungaqinisekisa ukusebenza okuthembekile kwe-valve. Lapha kuphakanyiswa ukuthi abakhiqizi be-valve abasebenzi be-hydrostatic test ukuze balondoloze ukuphepha kwabo, eminyakeni yamuva, izingozi zokuphepha ze-valve hydrostatic test, kufanele banake. Ukuhlolwa kwamandla okucindezela uvemvane womoya uvemvane i-diaphragm kusukela kunoma imuphi umkhawulo wokwethulwa kwezinto, okuphakathi ukuze uvule i-valve ye-piston, enye indawo evaliwe, ingcindezi yokuhlola ikhuphukele inani elijwayelekile, bheka ipuleti likawoyela kanye ne-valve yokugeleza eyodwa akukho ukuvuza abafanelekile. Bese wehlisa umfutho wegazi kumfutho wokuhlolwa kokuvala, vala ivalve yepiston, uvule elinye icala ukuze uhlole, akukho ukuvuza okufanele. Hlola isimo se-valve yokuhlola i-valve: ukulungiswa kwe-valve ye-pneumatic butterfly test test amandla okucindezelayo kusuka kunoma yikuphi umkhawulo wokwethulwa kwezinto ezibonakalayo, okuphakathi ukuze uvule i-valve ye-piston, enye indawo evaliwe, ingcindezi yokuhlola ikhuphukele enanini elijwayelekile, bheka ipuleti likawoyela kanye ne-valve yokugeleza eyodwa akukho ukuvuza kwabaqeqeshiwe. Bese wehlisa umfutho wegazi kumfutho wokuhlolwa kokuvala, vala ivalve yepiston, uvule elinye icala ukuze uhlole, akukho ukuvuza okufanele. I-valve yokuhlola Hlola ukuhlolwa kwe-valve: uhlobo lokuphakamisa isheke i-valve piston valve centre line itholakala engxenyeni eqondile; Isiteshi sesiteshi sokuphepha se-Swing check valve kanye ne-piston valve centerline zitholakala ngokuhambisana nomugqa oqondile. Ukuhlolwa kwamandla acindezelayo, kusukela ekungeneni kokuphela kokwethulwa kwezinto zokuhlola kuye kunani elijwayelekile, enye indawo evaliwe, bheka ipuleti lesekhethi kawoyela kanye ne-valve yokugeleza eyodwa akukho ukuvuza kwabaqeqeshiwe. Ukuhlolwa kokuvala kusuka ekugcineni kokuthunyelwa kwempahla yokuhlola, ekungeneni kokuphela kwendawo yokuhlola, izinto zokugcwalisa kanye ne-gasket akukho ukuvuza kwabaqeqeshiwe. I-valve Amandla acindezelayo we-valve yokukhulula ahlolwa ngamanzi kampompi, njengamanye ama-valve. Lapho uhlola phansi ipuleti yesifunda samafutha, ukucindezela kwethulwa kusukela ekugcineni kwe-inlet, futhi ubuso buvaliwe; Lapho uhlola ukuphela okuphezulu kwebhodi lesifunda samafutha kanye ne-valve eyodwa yokugeleza, ukucindezela kwethulwa kusukela ekugcineni kokuphuma, kanti omunye umkhawulo uvaliwe. Akukho ukuvuza kwebhodi lesifunda samafutha kanye ne-valve eyodwa yokugeleza ngesikhathi esidingekayo kuyafaneleka. Ukuhlolwa kokuvala uphawu kanye nokuhlolwa okufanayo, ukusetshenziswa okujwayelekile kwezinto yilezi: i-valve yesitimu esishisayo esishisayo njengento yokuhlola; I-ammonia noma enye i-valve yesitimu enegesi njengento yokuhlola; Amanzi kanye namanye ama-valve angama-liquid angagqwali ukuze aniselwe njengento yokuhlola. Kwezinye izingxenye ezibalulekile ze-valve i-hydrogen evamile njengezinto zokuhlola. Ukuhlolwa kokuvala uphawu kwenziwa ngengcindezi yokulinganisa yezinombolo zokucindezela kwezinombolo, imvamisa yayo engekho ngaphansi kwezikhathi ezi-2, akukho ukuvuza esikhathini esidingekayo esifanelekile. Kunezindlela ezimbili zokuhlola ukuvuza: enye iwukuvala amalunga e-valve, ngebhotela elingafakwanga usawoti ukuze uvale ithawula lephepha lepulasitiki ku-flange yokuthekelisa, iphepha lepulasitiki lokuvuza, hhayi i-convex kwabaqeqeshiwe; Okwesibili ukusebenzisa ibhotela elingenasawoti epuleti lepulasitiki elincanyana noma elinye ithawula lokuvala ipuleti ku-flannel yokuthekelisa ngezansi, ukuvala umjovo wamanzi we-valve we-piston, ukutholwa kwamabhamuza emanzini kuyafaneleka. Iyunifomu ye-valve kanye nemvamisa yokuhlolwa kwengcindezi yesihlalo sangemuva ayikho ngaphansi kwezikhathi ezi-3, ihlangabezana nezidingo zabaqeqeshiwe. I-valve elawula ukucindezela Ukuhlolwa kwamandla okucindezela kwe-valve yokunciphisa ukucindezela ngokuvamile kuhlanganiswe ngemva kokuhlolwa kwezingxenye, kodwa futhi ngemva kokuhlolwa kokuhlanganisa. Ubude besikhathi sokuhlolwa kwamandla okucindezelayo: DN50mm ye-1min; DN65 ~ 150mm ngaphezu 2min; DN150mm isikhathi esingaphezu kwemizuzu emi-3. Ngemva kokushisela izinsimbi zensimbi ngezingxenye, ukuhlolwa kwamandla okucindezelayo kwenziwa ngegesi izikhathi ezingu-1.5 zokucindezela okuphezulu ngemuva kwe-valve. Ukuhlolwa kokuvala uphawu kufanele kwenziwe ngokuvumelana nengqikithi yomsebenzi wangempela. Uma usebenzisa igesi noma ukuhlolwa kwamanzi, yenza ukuhlolwa ngezikhathi ezingu-1.1 zokucindezela okulinganiselwe kobubanzi; Ukuhlolwa kwe-Steam kwenziwa ngezingcindezi zokusebenza eziphezulu kakhulu emazingeni okushisa okusebenza. Umehluko phakathi kwengcindezi yokungena kanye nengcindezi yokuphuma ayikho ngaphansi kuka-0.2mpa. Indlela yokuhlola yilena: ngemva kokunemba kokulawula ukucindezela kwe-inlet, lungisa kancane isikulufu sokulungisa i-valve, ukuze ingcindezi yokuphuma esigabeni senani elikhulu kakhulu nelincane ikwazi ukuhleleka, ishintshe ngokuqhubekayo, kungabikho ukumila, kubambeke. Ku-valve yokunciphisa umfutho we-steam, lapho ukucindezela kokungena kulungiswa kude, vala i-valve futhi unqamule i-valve, ingcindezi yokuphuma iphakeme ngokuqhathaniswa nenani eliphansi, phakathi nemizuzu engu-2, ukukhuphuka kwenani lokucindezela kokuphuma kufanele kuhlangabezane nezidingo Ithebula 6-22, ngesikhathi esifanayo, umthamo wepayipi ngemva kokuba i-valve ihlangabezane nezidingo kuThebula 6-23 ifanelekile; Ukuze uthole i-valve yokunciphisa umfutho wamanzi nomoya, lapho ukunemba kokulawula ingcindezi yokungena, ukucindezela kokuphumayo kunguziro, vala i-valve elawula ingcindezi ukuze wenze ukuhlolwa kokuvala, akukho ukuvuza ku-2min okufanelekile. Indlela yokucindezela kanye nokuhlolwa kwesici sokugeleza okuphelele ukulungisa ingcindezi yokungena nokuphuma kuqala, shintsha u-30% wokugeleza okuphelele kokuphuma ngaphansi komehluko wengcindezi lapha, noma ushintshe u-30% wengcindezi yokungena ngaphandle kokuhambisa ukugeleza okuphelele, bese linganisa ingcindezi yokuphuma ngokunembile, futhi inani layo eliyingxenye lifaneleka ngokuvumelana nezidingo ezikuThebula 6-24. I-steam trap Ziningi izinhlobo ze-steam trap, futhi kunezinto eziningi zokuhlola ezintsha. Ngokuvamile, kuphela ukuhlolwa kwamandla okucindezela ingcindezi, ukuhlolwa kwamandla okucindezelayo nokuhlolwa kokuma kusetshenziswa. Ukuhlolwa kwamandla okucindezelayo kuyafana namanye ama-valve. Ukuhlolwa kokuminyanisa okokwenza ukuhlolwa kokucindezelwa kwengcindezi ekushintsheni kokucindezela kwephampu yamanzi nezinye izingxenye ezivaliwe ngokucindezela okuphindwe izikhathi ezingu-1.2 kunokucindezela okulinganiselwe kwedayamitha. Ukuhlolwa ukubuyisela emanzini umusi namanzi agcwele, imvamisa yokuhlola ayikho ngaphansi kwezikhathi ezi-3. Ingcindezi yokuhlola yenziwa ngengcindezi yokusebenza ephezulu kakhulu, ingcindezi yokusebenza ephansi kakhulu kanye nengcindezi yokusebenza ephansi kakhulu ngokulandelana. I-Dexterity ekumeni kanye nokuntuleka kwesitimu kuyafaneleka. Ukuhlolwa kwe-postural kanye nokuhlolwa kokuvala isicupho somusi kuvame ukwenziwa elabhorethri. I-Steam trap ngaphezu kokuhlolwa kwengcindezi, ukuhlolwa kwamandla okucindezelayo, ukuhlolwa kokucindezela kanye nokuma komzimba kunokuhlolwa okushisayo kwe-condensate displacement, i-super-cooling degree, enkulu kakhulu ivumela ukuhlolwa kohlobo lokucindezela emuva, ukuhlolwa kwesilinganiso sokuvuza, igesi ekhishwayo kanye nokusebenza okuphansi kakhulu. ingcindezi esivivinyweni, ukuhlolwa kwengcindezi yokusebenza ephezulu uma kuqhathaniswa, njll, kuye ngokuthi unesimo.