Kuthetsa mavuto a valve positioner output pressure shock Kagawidwe kake ka ma valve ndi mfundo

Kuthetsa mavuto a valve positioner output pressure shock Kaphatikizidwe ka valavu kagawo ndi mfundo Yang'anani kuchuluka kwa kuthamanga kwa choyika ma valve Ndi kutchuka kwa ma automation a mafakitale, pomwe chowongolera valavu chowongolera chikuwonetsanso ntchito yofunikira. Positioner ndi chipangizo chomwe chimalandira ma siginecha amagetsi kuchokera ku makina owongolera ndikuwasintha kukhala ma siginecha agasi kuti aziwongolera malo a valve. Kuwongolera kulondola kwa valavu yoyang'anira, kupatulapo mapangidwe a thupi la valve, zimadalira kulondola kwa kayendetsedwe kake. Ndiye nthawi zambiri timakumana ndi chodabwitsa cha linanena bungwe kuthamanga oscillation wa locator pa ntchito locator. Njira yothetsera mavuto ili motere: 1, choyamba, ma valve ndi malo olumikizirana amachotsedwa ngati otayirira, malo oyika ndi olondola. 2. Ngati ndi choyika makina, chidwi chiyenera kulipidwa ngati valavu yochepetsera mphamvu ikufanana ndi malo. 3, muwone ngati pali zida zamagetsi zamphamvu kwambiri kuzungulira, chotsani kusokoneza kwamagetsi. 4. Chotsani kutayikira kwa chitoliro cholumikizira cha gwero lililonse la mpweya. 5. Ngati ndi filimu yochita filimu imodzi, onani ngati kuuma kwa kasupe kwa actuator kumagwirizana ndi locator. 6, osapatula ngati actuator ili ndi mpweya wa silinda, kapena kutayikira kwa silinda. 7. Osapatula amplifier positioner kapena piezoelectric valve airway weight kaya pali dothi. 8, chotsani mikangano ya valve ndi yayikulu kwambiri ndipo choyikapo sichikugwirizana ndi zomwe zikuchitika. Common valve positioner classification ndi mfundo valavu positioner malinga ndi dongosolo: Pneumatic valavu positioner, valavu yamagetsi positioner ndi wanzeru valavu positioner, ndi waukulu valavu Chalk Chalk, nthawi zambiri ndi pneumatic valavu kulamulira, izo amavomereza regulator linanena bungwe chizindikiro, ndiyeno linanena bungwe lake. chizindikiro chowongolera valavu yowongolera ma pneumatic, pomwe valavu yowongolera, tsinde la valavu yamayendedwe osunthika kupita kumalo opangira ma valve komanso kudzera pa chipangizo chamakina, Malo a valve amaperekedwa kumtunda wapamwamba ndi chizindikiro chamagetsi. Valve Positioner (Valve Positioner) Valve positioner malinga ndi kapangidwe kake: Pneumatic valve positioner, valavu yamagetsi yamagetsi ndi malo anzeru valavu, ndiye zida zazikulu zowongolera valavu, nthawi zambiri zimakhala ndi valavu yowongolera pneumatic, imavomereza chizindikiro chowongolera, kenako ndi chizindikiro chake. kuwongolera valavu yowongolera ma pneumatic, pomwe valavu yowongolera, tsinde la valavu yamayendedwe osunthika kupita kumalo opangira ma valve komanso kudzera pa chipangizo chamakina, Malo a valve amaperekedwa kumtunda wapamwamba ndi chizindikiro chamagetsi. (1) Kapangidwe ka Valve potengera mawonekedwe ake ndi mfundo zogwirira ntchito zitha kugawidwa kukhala choyimira valavu cha pneumatic, choyimitsa valavu yamagetsi ndi gasi wanzeru. Valve positioner imatha kuwonjezera mphamvu yotulutsa valavu yowongolera, kuchepetsa kufalikira kwa chizindikiro chowongolera kumachitika, kufulumizitsa kuthamanga kwa tsinde la valavu, kuwongolera mzere wa valavu, kuthana ndi kukangana kwa tsinde la valavu ndikuchotsa chikoka. ya mphamvu yosagwirizana, kuti muwonetsetse malo olondola a valve yolamulira. (2) gulu la locator 1, choyimira valavu chimagawidwa kukhala choyimira valavu cha pneumatic, choyika ma valve amagetsi ndi malo anzeru a valve malinga ndi chizindikiro cholowera. (1) Chizindikiro cholowera cha valavu ya pneumatic ndi chizindikiro cha mpweya wamba, mwachitsanzo, 20 ~ 100kPa chizindikiro cha mpweya, chizindikiro chake chotuluka ndi chizindikiro cha gasi. (2) Chizindikiro cholowera chamagetsi amagetsi amagetsi ndi chizindikiro chamakono kapena magetsi, mwachitsanzo, 4 ~ 20mA chizindikiro chamakono kapena 1 ~ 5V chizindikiro chamagetsi, ndi zina zotero, chizindikiro chamagetsi chimasinthidwa kukhala mphamvu yamagetsi mkati mwa valavu yamagetsi , ndiyeno chizindikiro cha gasi chotuluka ku valavu yowongolera. (3) valavu yamagetsi yamagetsi imayang'anira chiwongolero chamakono mumayendedwe amagetsi oyendetsa valavu, malinga ndi kugundana kwa tsinde la valavu pogwira ntchito, kusinthasintha kwapakatikati ndi kusinthasintha kwamphamvu, kotero kuti kutsegula kwa valve kumagwirizana ndi chipinda chowongolera. kutulutsa chizindikiro chapano. Ndipo magawo ofananira amatha kukhazikitsidwa ndi kasinthidwe kanzeru kuti apititse patsogolo magwiridwe antchito a valve yowongolera. 2, malinga ndi malangizo a zochita akhoza kugawidwa mu njira imodzi valavu positioner ndi njira ziwiri valavu positioner. Choyimitsira valavu cha njira imodzi chimagwiritsidwa ntchito mu pisitoni actuator, choyimitsa valavu chimangogwira mbali imodzi, choyimira cha valavu chanjira ziwiri chimagwira mbali zonse za silinda ya pisitoni actuator, mbali ziwiri. 3, molingana ndi valavu yotulutsa malo ndi chizindikiro chopezera chizindikiro chagawidwa kukhala choyika valavu chabwino ndi choyimira valavu. Pamene chizindikiro cholowetsa ku choyikapo cha valve chikukwera, chizindikiro chotuluka chimawonjezeka, kotero kuti phindu limakhala labwino. Chizindikiro cholowetsa cha rection valve positioner chimawonjezeka, chizindikiro chotuluka chimachepa, chifukwa chake, phindu ndiloipa. 4, malinga ndi chizindikiro cholowera cha valve ndi chizindikiro cha analogi kapena chizindikiro cha digito, chikhoza kugawidwa m'magawo wamba a valve ndi malo opangira magetsi a basi. Chizindikiro cholowetsa cha locator wamba valavu ndi kuthamanga kwa analogi kapena pakalipano, siginecha yamagetsi, chizindikiro cholowera cha fieldbus Electric valve locator ndi chizindikiro cha digito cha fieldbus. 5, kutengera ngati valavu yokhala ndi CPU ingagawidwe kukhala ma valve wamba amagetsi ndi ma valve anzeru amagetsi. Ma valve odziwika bwino amagetsi alibe CPU, choncho alibe nzeru, sangathe kugwira ntchito zanzeru. Wanzeru magetsi ma valve positioner ndi CPU, amatha kuthana ndi ntchito yanzeru, mwachitsanzo, amatha kupititsa patsogolo chipukuta misozi, etc., fieldbus magetsi valve positioner ingathenso kutenga P> 6, malinga ndi njira yodziwira zizindikiro zamaganizo imathanso kugawidwa. Mwachitsanzo, choyimira valavu chimazindikira chizindikiro cha valavu pogwiritsa ntchito njira yolumikizira ndodo, choyimira valavu chimazindikira kusamuka kwa tsinde la valavu ndi njira ya Hall effect, choyimira valavu chimazindikira kusamuka kwa tsinde ndi njira yolumikizira ma elekitirodi, ndi zina zambiri (3. ) Mfundo yogwira ntchito Choyimira valavu ndicho chowonjezera chachikulu cha valve yolamulira. Zimatengera chizindikiro chosinthira tsinde la valavu ngati chizindikiro choyezera mayankho, imatenga chizindikiro chowongolera ngati chizindikiro chokhazikitsa, kufananiza, pamene awiriwo ali ndi kupatuka, amasintha chizindikiro chake kukhala chowongolera, chimapangitsa kuti chiwongolero chichitike, chimakhazikitsa tsinde la valve. kusamuka ndi chizindikiro chowongolera pakati pa makalata amodzi ndi amodzi. Chifukwa chake, choyimira valavu chimakhala ndi njira yowongolera mayankho ndi kusuntha kwa tsinde ngati chizindikiro choyezera komanso kutulutsa kowongolera ngati chizindikiro chokhazikitsa. Kusintha kwa kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwekazi ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kamwemwebumwemwe kapa kapanganinganinganidwenkemwe ukusebenza KOELEjiANIshonikhushoniwu kwoCHILIRA MAILIRA 2010, magawo amtundu wa 2019 kukhala chizindikiro cha valavu poyika pa actuator. (zachinayi) mfundo zoyendetsera malo (1) zomwe zimagwiritsidwa ntchito poyang'anira dongosolo lofunikira lomwe lili ndi zofunikira zapamwamba kwambiri, pofuna kukonza malo olondola komanso odalirika a valve yowongolera. (2) kwa valavu mbali ziwiri za kusiyana kwa kuthamanga ndi kwakukulu (△p1MPa) nthawi. Powonjezera mphamvu ya gwero la mpweya, mphamvu yotulutsa mpweya imachulukitsidwa kuti igonjetse mphamvu yosagwirizana ndi madzi pa spool ndikuchepetsa kulakwitsa kwa sitiroko. (3) sing'anga ikasinthidwa kutentha kwambiri, kuthamanga kwambiri, kutentha pang'ono, poizoni, kuyaka, kuphulika, pofuna kupewa kutuluka kwakunja, kulongedzako nthawi zambiri kumakanikizidwa mwamphamvu kwambiri, kotero kuti kukangana pakati pa tsinde la valve ndi kulongedza ndiko. chachikulu, panthawiyi, wopezekapo akhoza kuthana ndi kuchedwa. (4) Pamene sing'anga ili ndi madzi otsekemera kapena imakhala ndi chinthu cholimba choyimitsidwa, choyikapo chingagonjetse kukana kwapakati pakuyenda kwa tsinde. (5) kwa mainchesi akulu (Dg100mm) valavu yowongolera kuti awonjezere kutulutsa kwamagetsi. (6) Pamene mtunda pakati pa chowongolera ndi chowongolera uli pamwamba pa 60m, choyikapo chingagonjetse kufalikira kwa chizindikiro chowongolera ndikuwongolera liwiro la valavu. (7) amagwiritsidwa ntchito kukonza mawonekedwe oyenda a valve yowongolera. (8) Pamene chowongolera chimayang'anira ma actuators awiri kuti agwiritse ntchito magawano, ma positioners awiri angagwiritsidwe ntchito kuvomereza chizindikiro chochepa cholowera ndi chizindikiro chapamwamba kwambiri, ndiye kuti actuator low range action, china chokwera, ndiko kuti, chimapanga magawano. kusintha. (5) mitundu yoyenera Ma actuators omwe amagwiritsidwa ntchito kwambiri amagawidwa kukhala ma pneumatic actuators, magetsi oyendetsa magetsi, sitiroko yowongoka, sitiroko ya ngodya. Amagwiritsidwa ntchito potsegula ndi kutseka mitundu yonse ya ma valve ndi ma air plates okha komanso pamanja.