Mfundo yogwiritsira ntchito chipangizo chamagetsi cha valve

Mfundo yogwirira ntchito ya chipangizo chamagetsi cha valve Chifukwa mtundu wa valve ndi wochuluka, kuti upangidwe ndi kugwiritsira ntchito mosavuta, boma lapanga ndondomeko zofanana pakupanga njira yophatikizira yachitsanzo cha ma valve. Nambala yachitsanzo ya ma valve imakhala ndi zigawo zisanu ndi ziwiri zomwe zimasonyeza mtundu wa valve, mtundu wa galimoto, mgwirizano ndi zomangamanga, kusindikiza kapena kuyika zinthu, kukakamiza mwadzina ndi thupi. Mtundu wa valavu umagwiritsidwa ntchito kuimira mtundu wa valve, kuyendetsa ndi kulumikiza mawonekedwe, kusindikiza mphete ya mphete ndi kukakamiza mwadzina ndi zinthu zina. Mapangidwe a mtundu wa valavu amakhala ndi mayunitsi asanu ndi awiri motsatizana ... Mtundu wa valve Mtundu wa valve umagwiritsidwa ntchito kuimira mtundu wa valve, kuyendetsa ndi kulumikiza mawonekedwe, kusindikiza mphete yachitsulo ndi kukakamiza mwadzina ndi zinthu zina. Chifukwa mtundu wa valavu ndi wosiyanasiyana, kuti apange ndikugwiritsa ntchito mosavuta, boma lapanga zofunikira pakupanga njira yophatikizira yachitsanzo cha ma valve. Nambala yachitsanzo ya ma valve imakhala ndi zigawo zisanu ndi ziwiri zomwe zimasonyeza mtundu wa valve, mtundu wa galimoto, mgwirizano ndi zomangamanga, kusindikiza kapena kuyika zinthu, kukakamiza mwadzina ndi thupi. Mapangidwe a mtundu wa valve ali ndi magawo asanu ndi awiri motsatizana (onani tebulo ili m'munsimu) 1. Mtundu wa code ya valve 2. Njira yotumizira imasonyezedwa mu manambala achiarabu malinga ndi tebulo 1-2 Table 1-2 Dziwani: ① Gudumu lamanja , chogwirira ndi wrench drive ndi valavu yotetezera, valavu yochepetsera kupanikizika, msampha unasiya code iyi. ② Kwa pneumatic kapena hydraulic: nthawi zambiri imatsegulidwa ndi 6K, 7K; Nthawi zambiri amatsekedwa ndi 6B, 7B; Dzanja la pneumatic ndi 6S linati. Kuphulika kwamagetsi "9B". 3. Zizindikiro za mawonekedwe olumikizirana zimayimiridwa mu manambala achiarabu monga momwe tafotokozera mu Table 1-3 Table 1-3 Zindikirani: kuwotcherera kumaphatikizapo kuwotcherera matako ndi kuwotcherera zitsulo 4. Chipangizo chamagetsi cha valve ndicho kuzindikira kulamulira kwa pulogalamu ya valavu, kulamulira basi ndi kuwongolera kutali ndizofunikira kwambiri. zida zoyendetsa, kayendetsedwe kake kakhoza kuyendetsedwa ndi sitiroko, torque kapena kukula kwa axial thrust. Chifukwa mawonekedwe amagetsi amagetsi ogwiritsira ntchito ndi kugwiritsiridwa ntchito kumadalira mtundu wa valavu, ndondomeko yogwiritsira ntchito chipangizo ndi malo a valve mu payipi kapena zipangizo. Chipangizo chamagetsi nthawi zambiri chimakhala ndi magawo otsatirawa: Galimoto imadziwika ndi kuchulukira kwamphamvu, torque yayikulu, kamphindi kakang'ono ka inertia, nthawi yochepa, ntchito yapakatikati. Njira yochepetsera yochepetsera liwiro la mota. Makina owongolera sitiroko kuti asinthe ndikuwongolera molondola malo otsegulira ndi kutseka kwa valavu. Njira yochepetsera torque yosinthira torque (kapena kukankhira) kumtengo wodziwikiratu. Makina osinthira pamanja ndi magetsi, makina olumikizirana ogwiritsira ntchito pamanja kapena magetsi. Chizindikiro chotsegulira chikuwonetsa malo a valve panthawi yotsegula ndi kutseka. Choyamba, sankhani makina opangira magetsi molingana ndi mtundu wa valve 1. Angle stroke electric actuator (ngodya 360 madigiri) ndi yoyenera kwa valve butterfly, valve valve, plug valve, etc. sabata, ndiye kuti, zosakwana madigiri 360, nthawi zambiri madigiri 90 kuti azindikire kutsegula ndi kutseka kwa valve. Mtundu woterewu wamagetsi wamagetsi umagawidwa kukhala mtundu wolumikizana mwachindunji ndi mtundu wa crank yoyambira malinga ndi mawonekedwe osiyanasiyana oyika. A) Kulumikizidwa mwachindunji: kumatanthawuza mawonekedwe olumikizidwa mwachindunji a shaft yotulutsa yamagetsi ndi tsinde la valve. B) Mtundu wa crank Base: imatanthawuza mawonekedwe omwe tsinde lotulutsa limalumikizidwa ndi tsinde la valavu kudzera pa crank. 2. Multi-rotary electric actuator (ngodya 360 madigiri) ndi yoyenera kwa ma valve a pakhomo, ma valve a globe, ndi zina zotero. Nthawi zambiri pamafunika bwalo lopitilira limodzi kuti muzindikire kutsegulira ndi kutseka kwa valve. 3. Kuwombera kowongoka (kusuntha kolunjika) kuli koyenera kwa valavu yolamulira mpando umodzi, valavu yoyendetsa mipando iwiri, ndi zina zotero. Awiri, malinga ndi zofunikira zoyendetsera 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 kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kamwemwemwemwemwemwemwedhamwedhadha ngu ngu ngu ngu ngu ngungani utlwaNdaŵilanga Vavuyo imakhala yotseguka kwathunthu kapena yotsekedwa kwathunthu. Valavu yamtunduwu sifunikira kuwongolera bwino kayendedwe kapakati. Ndikoyenera kutchulanso kuti makina osinthira magetsi amathanso kugawidwa m'magulu ogawanika komanso ophatikizidwa chifukwa chamitundu yosiyanasiyana. Izi ziyenera kufotokozedwa posankha mtundu, apo ayi nthawi zambiri zimachitika m'munda unsembe ndi ulamuliro dongosolo *** ndi zina mismatches. A) Kapangidwe kagawidwe (kawirikawiri kamatchedwa wamba): gawo lowongolera limalekanitsidwa ndi chowongolera magetsi. Woyendetsa magetsi sangathe kulamulira valavu paokha, koma ayenera kuyendetsedwa ndi gawo lolamulira kunja. Nthawi zambiri, wowongolera wakunja kapena kabati yowongolera amagwiritsidwa ntchito pothandizira. Kuipa kwa kamangidwe kameneka ndikuti sikoyenera kuyika dongosolo lonse, kuonjezera mawaya ndi ndalama zowonjezera, komanso kulephera kulephera, pamene kulephera kukuchitika, sikoyenera kuzindikiritsa ndi kukonza, kutsika mtengo sikoyenera. . B) Mapangidwe Ophatikizidwa (omwe nthawi zambiri amatchedwa mtundu wofunikira): gawo lowongolera ndi chowongolera magetsi zimayikidwa lonse, lomwe limatha kuyendetsedwa kwanuko popanda gawo lowongolera lakunja, ndipo lingagwiritsidwe ntchito patali pokhapokha potulutsa zidziwitso zoyenera zowongolera. Ubwino wa dongosololi ndi yabwino dongosolo lonse unsembe, kuchepetsa mawaya ndi unsembe ndalama, matenda mosavuta ndi mavuto. Komabe, zinthu zachikhalidwe zophatikizika zamapangidwe zimakhalanso ndi zolakwika zambiri, chifukwa chake chopangira magetsi chanzeru chimapangidwa. 2. Mtundu wowongolera (wotseka-loop control) wowongolera mtundu wamagetsi wamagetsi sikuti umangokhala ndi ntchito yosinthira mtundu wophatikizika, komanso ukhoza kuwongolera molondola valavu ndikusintha kayendedwe kapakati. A) Mtundu wa siginecha (yapano ndi voteji) Chizindikiro chowongolera chowongolera magetsi nthawi zambiri chimakhala ndi chizindikiro (4 ~ 20MA, 0 ~ 10MA) kapena siginecha yamagetsi (0 ~ 5V, 1 ~ 5V). Mtundu ndi magawo a chizindikiro chowongolera ziyenera kukhala zomveka posankha mtundu. B) njira yogwirira ntchito (yamagetsi, yozimitsa magetsi) yoyang'anira njira yogwirira ntchito yamagetsi nthawi zambiri imakhala yamagetsi (tenga 4 ~ 20MA control monga chitsanzo, magetsi amatanthauza chizindikiro cha 4MA chofanana ndi valavu yotseka, 20MA yogwirizana ndi valavu yotseguka) , winayo ndi mtundu wamagetsi wamagetsi (tengani 4-20MA kulamulira monga chitsanzo, magetsi pa amatanthauza chizindikiro cha 4MA chofanana ndi valavu yotseguka, 20MA ikufanana ndi valavu). C) Kutayika kwa chitetezo chazidziwitso Kutayika kwa chitetezo cha chizindikiro kumatanthauza kuti pamene chizindikiro chowongolera chikutayika chifukwa cha zolakwika za mzere, woyendetsa magetsi adzatsegula ndi kutseka valavu yolamulira ku mtengo wachitetezo. Mtengo wachitetezo wamba ndi wotseguka kwathunthu, wotsekedwa kwathunthu komanso uli mu situ. Malingana ndi zofunikira za chilengedwe chogwiritsira ntchito ndi kalasi yowonetsera kuphulika, chipangizo chamagetsi cha valve chikhoza kugawidwa mu mtundu wamba, mtundu wakunja, mtundu wamoto, mtundu wakunja wamoto, ndi zina. kutulutsa kwa valavu kutsegulira ndi kutseka kokwezeka kofunikira kumatsimikizira ma torque amagetsi opangira magetsi kuti asankhe momwe, nthawi zambiri amaperekedwa ndi wogwiritsa ntchito kapena kupanga ma valve ofananira, popeza wopanga ma actuator amangoyang'anira ma torque amagetsi, Kutsegula kwa valve yachibadwa ndi kutseka kokwezeka kofunikira kumatsimikiziridwa ndi kukula kwa valve, zinthu monga kuthamanga kwa ntchito, Koma chifukwa cha makina opanga ma valve olondola, ndondomeko ya msonkhano, kotero kuti opanga osiyana kupanga ma valve omwewo amafunikira torque nawonso amasiyana. , ngakhale mafotokozedwe omwewo okhala ndi ma valve opanga ma valve torque ndi osiyana nawonso, kusankha kwamtundu wa actuator ndikocheperako kumapangitsa kuti valavu isatseguke / kutseka, woyendetsa magetsi asankhe makokedwe oyenera. Kasanu, kusankha kolondola kwa chipangizo chamagetsi cha valve kutengera: torque yogwiritsira ntchito: torque yogwiritsira ntchito ndiye gawo lalikulu la chipangizo chamagetsi cha valavu, ma torque amagetsi amagetsi ayenera kukhala 1.2 mpaka 1.5 nthawi yamagetsi opangira ma valve. Operation thrust: pali zigawo ziwiri zazikulu za chipangizo chamagetsi cha valve: imodzi ilibe ndi thrust plate, torque yachindunji; Linalo lili ndi thrust disc, torque yotulutsa kudzera mu thrust disc stem nati yosinthidwa kukhala thrust yotulutsa. Kuwerengera kozungulira kozungulira: kuchuluka kwa ma laps valavu yamagetsi yamagetsi yotulutsa shaft kuzungulira kwadzina kwa valavu, ulusi wa valavu, ulusi, malinga ndi M = H / ZS kuwerengera (M pazida zamagetsi ziyenera kukwaniritsa chiwerengero chonse cha mphete yozungulira, H ndi kutalika kwa valavu yotseguka, S ya tsinde pa drive screw phula, Z ya ulusi wa tsinde). M'mimba mwake: kwa mavavu amtundu wamitundu yambiri, ngati tsinde lalikulu lomwe limaloledwa ndi chipangizo chamagetsi silingadutse tsinde la valavu, silingasonkhanitsidwe mu valavu yamagetsi. Choncho, m'mimba mwake mkati mwa dzenje linanena bungwe shaft wa chipangizo magetsi ayenera kukhala wamkulu kuposa awiri akunja tsinde la valavu lotseguka tsinde. Kwa ma valve ena ozungulira ndi ma valve ambiri ozungulira mu valavu yakuda yakuda, ngakhale musaganizire tsinde la tsinde kupyolera mu vutolo, koma pakusankhidwa kuyeneranso kuganiziridwa mozama za tsinde ndi kukula kwa keyway, kuti msonkhanowo uzigwira ntchito bwino. Linanena bungwe liwiro: ngati valavu kutsegula ndi kutseka liwiro ndi mofulumira kwambiri, n'zosavuta kupanga madzi kugunda chodabwitsa. Choncho, liwiro loyenera lotsegula ndi kutseka liyenera kusankhidwa malinga ndi zochitika zosiyanasiyana zogwirira ntchito.