Chikhazikitso choyambirira cha chipangizo chamagetsi cha valve

Chikhazikitso choyambirira cha chipangizo chamagetsi cha valve

Pankhani ya mavavu apakhomo, ma valve otsatirawa amatha kutchulidwa :1.Vavumtundu code Z, J, L, Q, D, G, X, H, A, Y, S motero: valavu pachipata, valavu globe, valavu throttle, valavu mpira, valavu butterfly, diaphragm valavu, pulagi valavu, valavu cheke, chitetezo valavu, valavu yochepetsera mphamvu, msampha 2. Khodi yolumikizira ma valve 1, 2, 4, 6, 7 motsatira: 1 ulusi wamkati, 2 ulusi wakunja, 4 flange, 6 kuwotcherera, 7 pair clamp 3. Njira yotumizira ma valve code 9, 6, 3 motsatana:
Pankhani ya mavavu apanyumba, mutha kutchula mitundu iyi ya ma valve:
1. Khodi ya mtundu wa valve Z, J, L, Q, D, G, X, H, A, Y, S ikuwonetsedwa motsatira:
Vavu yachipata, valavu yapadziko lonse lapansi, valavu yopumira, valavu ya mpira, valavu ya butterfly, valavu ya diaphragm, valavu ya pulagi, valavu yoyang'ana, valavu yotetezera, valavu yochepetsera mphamvu, valavu ya msampha
2. Khodi yolumikizira ma valve 1, 2, 4, 6, 7 motsatana:
1 ulusi wamkati, 2 ulusi wakunja, 4 flanges, 6 welds, 7 mapeyala a tatifupi
3. Njira yotumizira ma valve code 9, 6, 3 motsatana:
9 magetsi, 6 pneumatic, 3 nyongolotsi
4. Zida zamagetsi za thupi la valve Z, K, Q, T, C, P, R, V ndi motsatira:
Iron imvi, chitsulo chosapanga dzimbiri, chitsulo chosapanga dzimbiri, mkuwa ndi aloyi, chitsulo cha carbon, chromium-nickel chitsulo chosapanga dzimbiri, chromium-molybdenum chitsulo chosapanga dzimbiri, chromium-molybdenum vanadium chitsulo
5. Mpando chisindikizo kapena mzere code R, T, X, S, N, F, H, Y, J, M, W motero
Kukhazikitsa zoyambira za chipangizo chamagetsi cha valve
Vavu yamagetsi yamagetsi
Chida chamagetsi cha valavu ndi chida chofunikira kwambiri choyendetsera kuti muzindikire kuwongolera pulogalamu yakutali, kuwongolera zokha komanso kuwongolera kutali kwa valve. Kusuntha kwake kumatha kuyendetsedwa ndi stroke, torque kapena 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 zigawo izi:
** mota imadziwika ndi kuchulukira kwamphamvu, torque yayikulu, mphindi yaying'ono ya inertia, nthawi yayifupi, 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 choyendetsa magetsi molingana ndi mtundu wa valve
1. Angle stroke electric actuator (Angle 360 ​​madigiri) ndi yoyenera valavu ya butterfly, valavu ya mpira, valavu ya pulagi, ndi zina zotero.
Kuzungulira kwa shaft yotulutsa yamagetsi osakwana sabata imodzi, ndiko kuti, osachepera madigiri 360, nthawi zambiri madigiri 90 kuti azindikire kutsegulira 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 (Angle 360 ​​madigiri) ndi oyenera ma valve a zipata, ma valve a globe, ndi zina zotero.
Kuzungulira kwa shaft yotulutsa yamagetsi yamagetsi ndikokulirapo kuposa sabata imodzi, ndiko kuti, ndikokulirapo kuposa madigiri a 360. Nthawi zambiri pamafunika bwalo lopitilira limodzi kuti muzindikire kutsegulira ndi kutseka kwa valve.
3. Sitiroko yowongoka (kuyenda mowongoka) ndi yoyenera valavu yolamulira mpando umodzi, valavu yowongolera mipando iwiri, etc.
Kusuntha kwa shaft yotulutsa yamagetsi ndikoyenda mozungulira, osati mozungulira.
Awiri, malinga ndi kupanga kulamulira ndondomeko zofunika kudziwa njira ulamuliro wa actuator magetsi
1. Kusintha mtundu (otsegula loop control)
Kusintha ma actuators amagetsi nthawi zambiri kumazindikira kuwongolera kwa valve kuyatsa kapena kuzimitsa. 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 wosinthika (wotsekera loop control)
Makina oyendetsa magetsi oyendetsa magetsi samangokhala ndi ntchito yosinthira mtundu wophatikizika, komanso amatha kuwongolera bwino valavu ndikusintha kayendedwe kapakati.
A) Mtundu wa chizindikiro (panopa, voteji)
Chizindikiro chowongolera chowongolera magetsi chimakhala ndi chizindikiro chapano (4 ~ 20mA, 0 ~ 10mA) kapena siginecha yamagetsi (0 ~ 5V, 1 ~ 5V). Mtundu ndi magawo a chizindikiro chowongolera ziyenera kukhala zomveka posankha mtunduwo.
B) Fomu yogwirira ntchito (magetsi pamtundu, mtundu wamagetsi wamagetsi)
Njira yogwirira ntchito yamagetsi oyendetsera magetsi nthawi zambiri imakhala yotseguka yamagetsi (potengera kuwongolera kwa 4 ~ 20mA mwachitsanzo, mtundu wotseguka wamagetsi umatanthawuza chizindikiro chofananira cha 4mA ndi valavu yotseka, valavu ya 20mA yotseguka), ndi zina. ndi magetsi amtundu wapafupi (kutenga ulamuliro wa 4-20MA mwachitsanzo, mtundu wotseguka wamagetsi umatanthawuza chizindikiro chofanana cha 4mA ndi valavu yotseguka, valavu yofanana ya 20mA pafupi). Ma elekitirodi osamva kuvala
C) kutayika kwa chitetezo cha chizindikiro
Kutayika kwa chitetezo chazidziwitso kumatanthauza kutayika kwa chizindikiro chowongolera chifukwa cha zolakwika za mzere, chowongolera magetsi chidzawongolera valavu yotseguka komanso pafupi ndi mtengo wachitetezo chokhazikitsidwa, mtengo wachitetezo wamba umatsegulidwa kwathunthu, kutsekedwa kwathunthu, sungani zinthu zitatu.
Katatu, malinga ndi kugwiritsa ntchito chilengedwe komanso kuphulika kwa gulu la zida zamagetsi
Malingana ndi zofunikira za malo ogwiritsira ntchito ndi kalasi yowonetsera kuphulika, chipangizo chamagetsi cha valve chikhoza kugawidwa mu mtundu wamba, mtundu wakunja, mtundu wamoto, mtundu wakunja wamoto.
Tsimikizirani ma torque amagetsi amagetsi malinga ndi torque yofunikira ndi valavu
Vavu kutsegula ndi kutseka makokedwe ofunikira kumatsimikizira makokedwe linanena bungwe la actuator magetsi kusankha mmene, nthawi zambiri kuperekedwa ndi wosuta kapena mavavu wofananira wopanga, monga actuator wopanga ndi udindo wa linanena bungwe makokedwe a actuators, valavu wamba kutsegula ndi kutseka. makokedwe ofunikira amatsimikiziridwa ndi kukula kwa valavu ndi kukakamizidwa kugwira ntchito, koma chifukwa cha makina opangira ma valve, ndondomeko ya msonkhano, Choncho, makokedwe omwe amafunidwa ndi ma valve omwe amapangidwa ndi opanga osiyanasiyana amakhalanso osiyana, ngakhale atakhala. mawonekedwe omwewo a ma valve opangidwa ndi wopanga ma valve omwewo. Pamene woyendetsa wasankhidwa, kusankha kwa torque kumakhala kochepa kwambiri kuti apangitse kutsegula ndi kutseka kwa valve, kotero woyendetsa magetsi ayenera kusankha torque yoyenera.
Chachinayi, kusankha kolondola kwa ma valve amagetsi amagetsi:
Makokedwe ogwiritsira ntchito: torque yogwiritsira ntchito ndiye gawo lalikulu la chipangizo chamagetsi cha valve, torque yotulutsa chipangizo chamagetsi iyenera kukhala 1.2 ~ 1.5 nthawi za torque yayikulu ya valavu.
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.