Ntchito mfundo za valavu pneumatic malamulo

Pneumatic regulating valve imatanthawuza valavu yowongolera pneumatic, yomwe imatenga mpweya ngati mphamvu, yamphamvu ngati chojambulira, chizindikiro cha 4-20mA ngati chizindikiritso choyendetsa, ndikuyendetsa valavu kudzera pazowonjezera monga chovala chamagetsi chamagetsi , chosinthira, solenoid valve ndi valve yogwirizira, kuti valavu ichitepo kanthu poyenda ndi mawonekedwe ofanana kapena oyenda ofanana, Chifukwa chake, kuthamanga, kuthamanga, kutentha ndi magawo ena amachitidwe a payipi amatha kusinthidwa mofananira.

Pneumatic control valve ili ndi maubwino osavuta kuwongolera, kuyankha mwachangu komanso chitetezo chamkati, ndipo ikagwiritsidwa ntchito munthawi yoyaka ndi yophulika, sikuyenera kuchitanso zowonjezerapo.

Ntchito mfundo za vavu pneumatic malamulo:
Pneumatic control valve nthawi zambiri imakhala ndi pneumatic actuator ndikuwongolera kulumikizana kwa valavu, kukhazikitsa ndi kutumizira. Woyendetsa pneumatic amatha kugawidwa m'mitundu iwiri: mtundu umodzi wachitapo ndi mtundu wachitapo kawiri. Pali kasupe wobwerera mu chochita chimodzi, koma palibe kasupe wobwereranso muzochita ziwiri. Woyendetsa makinawo amatha kubwerera kumalo otsegulira kapena otsekera omwe valavu ikatayika pomwe mpweya watayika kapena valavu ikulephera.

Action mode vavu pneumatic malamulo:
Kutseguka kwa mpweya (nthawi zambiri kutsekedwa) ndipamene kuthamanga kwa mpweya pamutu wa nembanemba kumakulirakulira, valavu imasunthira kulowera komwe kukukulira kutsegula. Pomwe mpweya wothandizira umafika, valavu imakhala yotseguka kwathunthu. Komanso, kuthamanga kwa mpweya kumachepa, valavu imayenda mozungulira, ndipo ngati kulibe mpweya, valavu imatsekedwa kwathunthu. Nthawi zambiri, timatcha mpweya wotsegulira valavu ngati valavu yotseka.

Njira yoyendetsera mtundu wotseka wa mpweya (womwe nthawi zambiri umakhala wotseguka) ndi wosiyana kwambiri ndi mtundu wotsegulira mpweya. Mpweya ukachuluka, valavu imayenda motsekedwa; kuthamanga kwa mpweya kukatsika kapena sikutero, valavu imatseguka kapena kutsegula kwathunthu. Nthawi zambiri, timatcha gasi yotseka valavu ngati vuto lotseguka

Kusiyanitsa ndi kusankha pakati pa valavu yayikulu ya mpira ndi valavu yampira wamba
Mkulu nsanja mpira valavu, otchedwa mkulu nsanja vavu mpira, utenga is05211 kupanga muyezo, kuponyera lalikulu kapena wozungulira flange ndi valavu mpira monga thupi, ndi mapeto nkhope ya nsanja ndi apamwamba kuposa m'mphepete kunja kwa flange pa onse malekezero, amene si abwino kwa unsembe wa actuator pneumatic, actuator magetsi ndi zipangizo zina actuator, komanso kwambiri bwino mtendere pakati pa valavu ndi actuator ndi, ndi maonekedwe ndi wokongola kwambiri ndi woyengeka.

Valavu yayikulu yapulatifomu ndichinthu chomwe chimachokera ku valavu yamtundu wa bracket wamba. Kusiyanitsa pakati pa valavu yayikulu yamapulatifomu ndi valavu wamba ya mpira ndikuti imatha kulumikizidwa mwachindunji ndi woyendetsa galimoto osawonjezera bulaketi yolumikiza, pomwe valavu wamba ya mpira imatha kukhazikitsidwa ndi woyendetsa pambuyo pokhazikitsidwa ndi bulaketi. Kuphatikiza pakuchotsa kukhazikitsidwa kowonjezera bulaketi, chifukwa kumayikidwa mwachindunji papulatifomu, kukhazikika pakati pa woyendetsa ndi valavu ya mpira kumayendetsedwa bwino.

Ubwino wa valavu yayikulu yamapulatifomu ndikuti imatha kukhazikitsa pneumatic kapena magetsi actuator papulatifomu yake, pomwe valavu wamba ya mpira imafunikira kulumikizana kowonjezerapo kwa valavu, komwe kumatha kukhudza valavu yomwe imagwiritsidwa ntchito chifukwa chamasulidwe omenyera kapena chilolezo chomangirira kwambiri. Mkulu nsanja vavu mpira sadzakhala ndi vutoli, ndi ntchito zake ndi wolimba kwambiri pa ntchito.

Posankha valavu yayikulu yamiyendo ndi ma valve wamba a mpira, mawonekedwe amkati mwa valavu yayikulu yamapulatifomu akadali mfundo yotsegulira ndi kutseka, yomwe imagwirizana ndi valavu wamba wa mpira. Kuphatikiza pa maubwino omwe atchulidwa pamwambapa, kutentha kwapakatikati ndikokwera, bulaketi yolumikizira iyenera kugwiritsidwa ntchito kuteteza kugwiritsa ntchito bwino kwa woyendetsa ndikuletsa woyendetsa kuti asagwiritse ntchito chifukwa cha kutentha kwapakati.


Nthawi yamakalata: May-19-2021