I-valve yebhola yomoya iwuhlobo lwe-actuator yomoya esetshenziswa kabanzi ohlelweni lwesimanje oluzenzakalelayo lokulawula. Isignali yokulawula ishayela isenzo sokushintsha i-valve yebhola ngokusebenzisa i-actuator yomoya ukuze kuqedelwe isilawuli sokushintshwa noma ukulawulwa kokulungisa okuphakathi epayipini.
Iphuzu lokuqala: ukukhethwa kwe-valve yebhola
Imodi yokuxhuma: uxhumano lwe-flange, uxhumano lwe-clamp, uxhumano lwentambo yangaphakathi, uxhumano lwentambo yangaphandle, uxhumano olusheshayo lomhlangano, uxhumano olushiselwe (uxhumano lwe-butt welding, uxhumano lwe-socket welding)
Ukuvala isihlalo se-valve: i-valve yebhola evalwe ngokuqinile yensimbi, okungukuthi, indawo yokuvala yesihlalo se-valve kanye nendawo yokuvala yebhola kuyi-valve yensimbi yensimbi. Ifanele izinga lokushisa eliphezulu, eliqukethe izinhlayiya eziqinile, ukumelana nokugqoka. I-valve yebhola yophawu oluthambile, isihlalo esisebenzisa i-polytetrafluoroethylene PTFE, i-para-polystyrene PPL yokufaka uphawu okunwebekayo, umphumela wokuvala muhle, ungafinyelela ukuvuza okunguziro.
Valve impahla: WCB cast steel, izinga lokushisa eliphansi steel, insimbi engagqwali 304,304L, 316,316L, duplex steel, titanium ingxubevange, njll.
Ukushisa okusebenzayo: i-valve yebhola evamile yokushisa, -40 ℃ ~ 120 ℃. I-valve yebhola lokushisa eliphakathi, 120 ~ 450℃. I-valve yebhola yokushisa ephezulu, ≥450℃. I-valve yebhola yokushisa ephansi -100 ~ -40 ℃. I-valve yebhola yezinga lokushisa eliphansi kakhulu ≤100℃.
Ingcindezi yokusebenza: i-valve yebhola yengcindezi ephansi, ukucindezela okuzisholo okungu-PN≤1.6MPa. I-valve yebhola ye-pressure emaphakathi, ingcindezi yegama elingu-2.0-6.4MPa. I-valve yebhola enengcindezi ephezulu ≥10MPa. I-vacuum ball valve, iphansi kune-atmosphere eyodwa i-valve yebhola yokucindezela.
Isakhiwo: i-valve yebhola elintantayo, i-valve yebhola engashintshi, i-valve yebhola engu-V, i-eccentric half ball valve, i-valve yebhola ejikelezayo
Ifomu lesiteshi esigelezayo: nge-valve yebhola, i-valve yebhola lezindlela ezintathu (L-channel, T-channel), i-valve yebhola lezinyawo ezine
Iphuzu lesibili: ukukhethwa kwe-actuator yomoya
I-double acting piston type actuator pneumatic actuator yakhiwa ikakhulukazi isilinda, ikhava yokuphela kanye nepiston. I-shaft yegiya. Ibhulokhi yokukhawulela, isikulufu sokulungisa, inkomba nezinye izingxenye. Sebenzisa umoya ocindezelwe njengamandla okuphusha ukunyakaza kwepiston. I-piston ihlanganiswe ku-rack ukushayela shaft yegiya ukuze ijikeleze ku-90 °, bese ishayela isenzo sokushintsha i-valve yebhola.
I-piston-acting single type pneumatic actuator ikakhulukazi yengeza isiphethu sokubuya phakathi kwepiston nesivalo sokuphela, esingathembela emandleni okushayela entwasahlobo ukusetha kabusha i-valve yebhola futhi ugcine indawo ivuliwe noma ivaliwe lapho umfutho womthombo womoya ungalungile. , ukuze kuqinisekiswe ukuphepha kohlelo lwenqubo. Ngakho-ke, ukukhethwa kwamasilinda okubamba okukodwa ukukhetha ukuthi i-valve yebhola ivamise ukuvuleka noma kuvame ukuvalwa.
Izinhlobo eziyinhloko zamasilinda amasilinda e-GT, amasilinda e-AT, amasilinda e-AW nokunye.
I-GT ivele ngaphambili, i-AT iyi-GT ethuthukisiwe, manje isiwumkhiqizo ojwayelekile, ingafakwa ngobakaki we-valve yebhola mahhala, ngokushesha kunokufakwa kukabakaki, kulula, kodwa futhi iqine kakhulu. Isikhundla sika-0 ° no-90 ° singalungiswa ukuze kube lula ukufakwa kwamavalvu e-solenoid ahlukahlukene, ama-stroke switch, izesekeli ze-handwheel. I-AW cylinder isetshenziselwa ikakhulukazi i-valve yebhola yobubanzi obukhulu enamandla amakhulu okukhiphayo futhi yamukela isakhiwo semfoloko ye-piston.
Iphuzu lesithathu: ukukhethwa kwezesekeli ze-pneumatic
I-valve ye-Solenoid: Isilinda esisebenza kabili ngokuvamile sifakwe amavalvu e-solenoid amabili anamacala amahlanu noma amavalvu amathathu endlela emihlanu. Isilinda esibambayo esisodwa singafakwa amavalvu e-solenoid amabili anezindlela ezintathu. I-Voltage ingakhetha i-DC24V, i-AC220V njalonjalo. Izidingo zokuvikela ukuqhuma kufanele zicatshangelwe.
Iswishi ye-Stroke: Umsebenzi ukuguqula ukuzungezisa kwe-actuator ibe isignali yokuxhumana, okukhiphayo ethuluzini lokulawula, kanye nempendulo ngesimo sokucisha se-valve yebhola lasensimini. Okuvame ukusetshenziswa ngomshini, uhlobo lokungeniswa kazibuthe. Izidingo zokuvikela ukuqhuma nazo kufanele zicatshangelwe.
I-Handwheel mechanism: ifakwe phakathi kwe-valve yebhola nesilinda, ingashintshwa ibe yi-manual switch lapho umthombo womoya unephutha ukuze kuqinisekiswe ukuphepha kwesistimu futhi ungabambezeli ukukhiqizwa.
Izingxenye zokucubungula umthombo womoya: kunezixhumi ezimbili nezintathu, umsebenzi ukuhlunga, ukunciphisa ingcindezi, inkungu kawoyela. Kunconywa ukufaka isilinda ukuvimbela isilinda ukuthi singabhajwa ngenxa yokungcola.
I-valve positioner: Ukuze ivalvu yebhola yomoya womoya ilungiswe ngokulinganayo idinga ukufakwa, esetshenziswa kakhulu ivalvu yebhola yohlobo lwe-V yomoya. Ngena ku-4-20
mA, ukuze ucabangele ukuthi ikhona yini isignali yokuphuma kwempendulo. Ukuthi kudingekile yini ukuvikela ukuqhuma. Kukhona uhlobo olujwayelekile, uhlobo oluhlakaniphile.
I-valve yokukhipha ngokushesha: sheshisa isivinini sokushintsha i-valve yebhola womoya. Kufakwe phakathi kwe-cylinder kanye ne-solenoid valve, ukuze igesi ku-cylinder ingadluli ku-valve ye-solenoid, ikhishwe ngokushesha.
I-pneumatic amplifier: Ifakwe endleleni yomoya eya kusilinda ukuze yamukele isignali yengcindezi ye-positioner outlet, inikeze ukugeleza okukhulu ku-actuator, esetshenziselwa ukuthuthukisa isivinini sesenzo se-valve. 1:1 (isilinganiso sesignali kokuphumayo). Isetshenziswa kakhulu ukudlulisa amasiginali we-pneumatic ebangeni elide (0-300 metres) ukunciphisa umthelela we-transmission lag.
Ivalvu yokubamba umoya: Isetshenziselwa ikakhulukazi ukusebenza okuxhumene komthombo womoya, futhi lapho ingcindezi yomthombo womoya ingaphansi kwalokho, ipayipi legesi elinikezela ngamavalvu liyanqanyulwa, ukuze ivalvu igcine indawo ngaphambi kokuhluleka komthombo womoya. Lapho umfutho womthombo womoya ubuyiselwa, ukunikezwa komoya kusilinda kuqaliswa kabusha ngesikhathi esifanayo.
Ukukhethwa kwe-valve yebhola yomoya ukucabangela izici ze-valve yebhola, isilinda, izesekeli, ukukhetha ngakunye kwephutha, kuzoba nomthelela ekusetshenzisweni kwe-valve yebhola yomoya, ngezinye izikhathi encane. Kwesinye isikhathi izidingo zenqubo azikwazi ukuhlangatshezwana nazo. Ngakho-ke, ukukhetha kufanele kuqaphele imingcele yenqubo kanye nezidingo.
Isikhathi sokuthumela: Jul-20-2023