Pneumatic control valve kukula kwa pneumatic control valve imafunsa ngati valavu

Pneumatic control valve kukula kwa pneumatic control valve imafunsa ngati valavu

Chiwongolero cha manja owongolera ma vavu a pneumatic, spool yamtundu wa kuthamanga kwamphamvu, yoyenera pazovuta zazikulu zosiyana. Pogwiritsa ntchito mphete yosindikizira m'malo mwa mpando wapamwamba, mawonekedwe a valve okhala ndi mipando iwiri kukhala malaya ampando umodzi, kusintha kumeneku ** kumapangitsa kuti valavu ya manja ikhale yotuluka. Chophimba cha valve chimasindikizidwa kawiri ndi mvuvu ndi kulongedza, zomwe zimathetsa kuthekera kwa kutayikira kwa media. Mtundu uwu wa valavu yowongolera ndi yoyenera kwa poizoni kapena wamtengo wapatali wowongolera kuthamanga kwapakati.
Valavu yowongolera ma pneumatic imapangidwa ndi chowongolera filimu ya pneumatic, malo, thupi lowongolera valavu, thupi la valavu lili ndi spool ndi mpando, wokhala ndi mawonekedwe a kutayikira pang'ono. Mphamvu ya kusalinganiza kwa valve ndi yaikulu, kusiyana kovomerezeka kovomerezeka ndi kocheperako kusiyana ndi valavu yokhala ndi mipando iwiri, kusiyana kwakukulu, caliber yaikulu, ndi bwino kufanana ndi malo a valve. M'mimba mwake mwadzina ≥25mm valavu ya kalozera wapawiri, malinga ngati kusintha kwa filimu ya pneumatic mpando umodzi wowongolera valavu ndi malo olumikizirana ndi spool kumatha kukwaniritsa kutseguka kwa gasi kapena kutsekedwa kwa gasi. Mpando umodzi wa pneumatic filimu mpando umodzi wolamulira valavu thupi lili ndi spool ndi mpando, bola ngati malo olumikizira a valve tsinde ndi spool angasinthidwe kuti akwaniritse kutseguka kwa mpweya kapena kutseka kwa mpweya.

Pofuna kuthetsa vuto la valve positioner, m'pofunika kuweruza molondola vuto la chiyanjano ndi chigawo cha valve positioner. Pneumatic actuator imayendetsedwa ndi mpweya wopanda mafuta kuti uyendetse valavu kapena kuchitapo kanthu. Pali makamaka mitundu iyi: valavu pneumatic, valavu solenoid, magetsi chizindikiro pneumatic yaitali sitiroko actuator. Pneumatic control valve pneumatic control valve ndi pneumatic actuator ndi valavu yowongolera magawo awiri.
Muzochita zaumisiri, chimodzi kapena zingapo za kulephera kwa mphamvu, kulephera kwa gasi ndi kulephera kwa chizindikiro kumachitika pamene valavu yolamulira pneumatic imangotsegula valavu, kutseka valavu kapena kusunga malo asanayambe kulephera kwa valve - chitetezo chopuma katatu pogwiritsa ntchito njira zotetezera. Pakati pawo, ma valve otseka ndi otsegula angapezeke mosavuta pogwiritsa ntchito mphamvu ya silinda ndi kasupe mu thupi la valve. Ntchito yoteteza pang'ono patatu - chitetezo chopumira ndizovuta kuzindikira, chifukwa chake pepalali limasanthula ndikufanizira dongosolo lachitetezo pang'ono m'mitundu iwiri yamitundu itatu - zida zodzitetezera zomwe zimagwiritsidwa ntchito muukadaulo.
Vavu ya mpira yakhala ikugwiritsidwa ntchito kwambiri, valavu yanjira zitatu m'malo mwa valavu iwiri yokhala ndi mpando umodzi mu dongosolo () chitsulo chosindikizira msika wamafuta padziko lonse lapansi, kukula kwachangu kwa gasi, kukula kwa phazi kwayendanso kumakona onse adziko lapansi. , m'zigawo zida waika patsogolo zofunika zatsopano. Kodi ntchito ya pinghu pneumatic - valve tsopano muyenera kuchita chiyani funso losavuta pa intaneti mukhoza kudziwa mitundu yosiyanasiyana ya mitengo ya zipangizo Titha kupeza opanga osiyanasiyana amapereka nthawi yomweyo kuti tithe kudziwa mtengo wa zipangizo, kuti titha kukonzekera bwino ndikudziwa momwe zida ziliri, tikufuna kubweretsa njira yabwino yogulira.
Mpweya wowongolera mpweya ndi gasi woponderezedwa monga gwero la mphamvu ya silinda monga actuator, ndipo mothandizidwa ndi valavu, otembenuza, valavu ya solenoid, valavu, kusungirako gasi, zosefera mpweya, monga zomata zoyendetsa valavu, kuzindikira kuchuluka kwa kusintha. kapena gawo mtundu kusintha, mafakitale zochita zokha kulamulira dongosolo amalandira ulamuliro chizindikiro kumaliza kusintha payipi sing'anga: Flow, kuthamanga, kutentha, madzi mlingo ndi magawo ena ndondomeko. Valavu yowongolera ma pneumatic imadziwika ndi kuwongolera kosavuta, kuyankha mwachangu, komanso chitetezo chofunikira, popanda miyeso yowonjezera yotsimikizira kuphulika. Kapangidwe kazinthu: pneumatic control valve working mfundo ndi kuchuluka kwa ntchito
Valavu yowongolera ma pneumatic iyeneranso kukhala ndi chipangizo cholowetsa chizindikiro, imatha kusinthidwa malinga ndi zofunikira za kutentha kogwira ntchito. Zida zazikulu: makina otumizira magalimoto, dera lodziwikiratu, chipangizo chozizirira, chipangizo choyatsira mafuta, chotchinga, ndi zina zambiri tsitsi loterera”. Lamulo likuti mutha kupewa kuterera pamasiku amvula. Koma mumapanga bwanji
NORGREN solenoid valve ndi imodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri pamakampani opanga mafuta, mankhwala, mphamvu yamagetsi, zitsulo ndi mabizinesi ena ogulitsa. Kawirikawiri ndi pneumatic actuator ndi valavu yoyang'anira olumikizidwa ku unsembe ndi debugging pambuyo mapangidwe ophatikizana chida. Mukayika valavu yowongolera pneumatic, tiyenera kulabadira zinthu zisanu ndi ziwiri zotsatirazi zomwe zikufunika kusamala:
Valavu yowongolera chibayo imapangidwa makamaka ndi pneumatic actuator, thupi la valve ndi zina. The actuator imayendetsedwa ndi mpweya wabwino woponderezedwa ndipo imalandira zizindikiro zamagetsi za 4 ~ 20 ma kapena zizindikiro za mpweya 20 ~ 100KPa kuyendetsa kayendetsedwe ka thupi la valve ndikusintha malo oyenda pakati pa mphutsi ya valve ndi mpando wa valve, kuti akwaniritse ntchitoyi. za kuwongolera kuyenda. Pofuna kukonza mzere wa valavu, gonjetsani kukangana kwa tsinde la valavu ndi chikoka chifukwa cha kusintha kwa sing'anga (kutentha, kuthamanga), kugwiritsa ntchito valavu ya valve ndi kugwirizanitsa ma valve, kuti malo a valve athe. kusinthidwa ndi mawonekedwe abwino a siginecha.
Valavu yodzitsekera (valavu yosungira malo), valavu yodzitsekera ndi chipangizo chosungira malo a valve. Mpweya wowongolera valavu pamene kulephera kwa mpweya wa chipangizocho kungathe kudula chizindikiro cha gasi, kotero kuti chizindikiro chokakamiza cha chipinda cha nembanemba kapena silinda chimasungidwa panthawi yomwe chisanathe kulephera, kuti malo a valve asungidwenso. mu malo asanalephere, sewerani udindo wosunga malo. Valve position transmitter, pamene wowongolera ali kutali ndi chipinda chowongolera mocheperapo momwe malowo angamvetsetsere kusinthana kwake, adzakhala ndi ma valve, ma valve otsegulira makina osamutsidwa, amasinthidwa kukhala chizindikiro chamagetsi kupita kuchipinda chowongolera malinga ndi lamulo linalake, chizindikirocho chikhoza kuwonetsera chizindikiro chopitilira cha kutsegulidwa kwa valve, kungathenso kuonedwa ngati kusuntha kwa valve.