Chotchinga chachitetezo chimachepetsa mphamvu zomwe zimalowa pamalowo, ndiye kuti, ma voliyumu ndi malire apano, kuti mzere wamunda usapange zopsereza pansi pamtundu uliwonse, kuti zisapangitse kuphulika.Njira yoletsa kuphulika imeneyi imatchedwa chitetezo chamkati.Zotchinga zathu zodziwika bwino zachitetezo zimaphatikizapo zotchinga zachitetezo za zener, zotchinga zachitetezo cha transistor, ndi zotchinga zachitetezo zapawokha za transformer.Zolepheretsa chitetezo izi zili ndi ubwino wawo ndipo onse ndi othandizira pakupanga mafakitale.Olemba otsatirawa ochokera ku Suixianji.com adzafotokozera mfundo yogwira ntchito ndi ntchito ya chotchinga chachitetezo, komanso kusiyana kwa chotchinga chodzipatula.
Chotchinga chachitetezo ndi mawu wamba, omwe amagawidwa kukhala chotchinga chachitetezo cha zener ndi chotchinga chodzipatula, chotchinga chakutali chimatchedwa chotchinga chodzipatula.
Momwe chotchinga chitetezo chimagwirira ntchito
1. Mfundo yogwiritsira ntchito chizindikiro chodzipatula:
Choyamba, chizindikiro cha transmitter kapena chida chimasinthidwa ndikusinthidwa ndi chipangizo cha semiconductor, ndiyeno chimasiyanitsidwa ndi kusinthidwa ndi chipangizo chopanda kuwala kapena maginito, kenako chimasinthidwa ndikusinthidwa ku chizindikiro choyambirira chisanadzipatula, ndi mphamvu. kuperekedwa kwa chizindikiro chodzipatula kumapatula nthawi yomweyo..Onetsetsani kuti chizindikiro chosinthidwa, magetsi ndi nthaka ndizodziyimira pawokha.
2. Mfundo yogwirira ntchito ya Zener chitetezo chotchinga:
Ntchito yayikulu yotchinga chitetezo ndikuchepetsa kuthekera kowopsa kwa malo otetezeka kuti alowe pamalo owopsa, ndikuchepetsa mphamvu zamagetsi ndi zomwe zatumizidwa kumalo oopsa.
Zener Z imagwiritsidwa ntchito kuchepetsa mphamvu yamagetsi.Pamene magetsi ozungulira ali pafupi ndi malire a chitetezo, Zener imatsegulidwa, kotero kuti voteji kudutsa Zener nthawi zonse imakhala pansi pa malire a chitetezo.Resistor R imagwiritsidwa ntchito kuchepetsa zomwe zilipo.Mphamvu yamagetsi ikakhala yocheperako, kusankha koyenera kwa mtengo wotsutsa kumatha kuchepetsa kuchuluka kwa loop pansi pamtengo wotetezedwa.
Ntchito ya fuse F ndikuletsa kulephera kwa magetsi ozungulira chifukwa cha chubu cha zener chomwe chikuwomberedwa ndi mphamvu yayikulu yomwe ikuyenda kwa nthawi yayitali.Pamene voteji ikupitirira malire otetezeka a voteji ikugwiritsidwa ntchito pa dera, chubu cha Zener chimatsegulidwa.Ngati palibe fuseji, zomwe zikuyenda mu chubu cha Zener zidzakwera mopanda malire, ndipo potsirizira pake chubu cha Zener chidzawombedwa, kotero kuti chiphuphucho chimataya malire ake.Kuwonetsetsa kuti chiwongola dzanja chamagetsi ndichotetezeka, fusesiyo imawomba kakhumi kuposa momwe Zener ingathe kuwomba.
3. Mfundo yogwirira ntchito ya chotchinga chakutali chodzipatula chachitetezo:
Poyerekeza ndi chotchinga chachitetezo cha zener, chotchinga chakutali chili ndi ntchito ya kudzipatula kwa galvanic kuwonjezera pa ntchito zamagetsi ndi kuletsa kwapano.Chotchinga chodzipatula nthawi zambiri chimakhala ndi magawo atatu: gawo la loop energy limiting unit, galvanic isolation unit ndi unit processing signal.The loop energy limiting unit ndiye gawo lalikulu lachitetezo chotchinga.Kuphatikiza apo, pali mabwalo othandizira magetsi oyendetsa zida zam'munda ndi mabwalo ozindikira kuti apeze ma siginecha.Chigawo chopangira ma signature chimachita ma signature malinga ndi zofunikira zachitetezo chachitetezo.
Udindo wa zolepheretsa chitetezo
Chotchinga chitetezo ndi chida chofunikira kwambiri chachitetezo m'mafakitale ambiri.Amagwiritsa ntchito kwambiri kapena amagwiritsa ntchito zinthu zina zoyaka moto, monga mafuta osapsa ndi mafuta osakanizika, mowa, gasi wachilengedwe, ufa, ndi zina zambiri. Kutayikira kapena kugwiritsa ntchito molakwika kwa chilichonse mwazinthuzi kumapangitsa kuti pakhale malo ophulika.Pachitetezo cha mafakitale ndi anthu pawokha, ndikofunikira kuwonetsetsa kuti malo ogwirira ntchito sangayambitse kuphulika.M'kati mwazitetezo izi, chotchinga chachitetezo chimagwira ntchito yofunika kwambiri.udindo wofunikira,
Chotchinga chachitetezo chili pakati pa chipinda chowongolera ndi zida zotetezeka zamkati pamalo owopsa.Zimagwira ntchito yoteteza makamaka.Zida zilizonse zamagetsi zomwe zimagwiritsidwa ntchito popanga zingayambitse kuphulika, kuphulika kwamitundu yosiyanasiyana, magetsi osasunthika, kutentha kwakukulu, ndi zina zotero. Zonse ndizosapeŵeka pakupanga mafakitale, choncho chotchinga cha chitetezo chimapereka chitetezo chotetezera kupanga mafakitale.
Payenera kukhala njira yodalirika kwambiri yokhazikitsira pansi panthawi yoyikapo, ndipo zida za m'munda zochokera kumalo owopsa ziyenera kudzipatula.Kupanda kutero, chizindikirocho sichikhoza kuperekedwa molondola pambuyo polumikizidwa pansi, zomwe zidzakhudza kukhazikika kwa dongosolo.
Kusiyana pakati pa chitetezo chotchinga ndi kudzipatula chotchinga
1. Signal isolator ntchito
Tetezani chipika chowongolera chapansi.
Chepetsani chikoka cha phokoso lozungulira pagawo loyesa.
Kuletsa kusokoneza kwa maziko a anthu, ma frequency converter, valve solenoid ndi kugunda kosadziwika kwa zida;panthawi imodzimodziyo, ili ndi ntchito zochepetsera mphamvu zamagetsi komanso zowerengera zamakono pazida zotsika, kuphatikizapo transmitter, chida, frequency converter, solenoid valve, PLC/DCS input and output and communication interface chitetezo chokhulupirika.
2. Chotchinga chodzitetezera chokha
Chotchinga chodzipatula: Chotchinga chodzipatula, ndiko kuti, kuwonjezera ntchito yodzipatula pamaziko a chotchinga chachitetezo, chomwe chingalepheretse kusokoneza kwa loop yapadziko lapansi ku chizindikirocho, ndipo nthawi yomweyo kuteteza dongosolo ku chikoka cha mphamvu yowopsa kuchokera ku chochitika.Mwachitsanzo, ngati chiwombankhanga chachikulu chimalowa m'munda, chidzaphwanya chotchinga chodzipatula popanda kukhudza IO.Nthawi zina imathanso kumveka ngati chodzipatula popanda ntchito yotchinga chitetezo, ndiye kuti, imangokhala ndi ntchito yodzipatula kuti iteteze kusokoneza kwa ma signal ndikuteteza dongosolo la IO, koma silimapereka dera lotetezeka mwachilengedwe.Kwa mapulogalamu osaphulika.
Imatengera mawonekedwe ozungulira omwe amalekanitsa zolowetsa, zotulutsa ndi magetsi kuchokera kwa wina ndi mnzake, ndikukwaniritsa zofunikira zachitetezo chamkati kuti achepetse mphamvu.Poyerekeza ndi chotchinga chitetezo cha Zener, ngakhale mtengo wake ndi wokwera mtengo, zabwino zake zogwira ntchito zimabweretsa phindu lalikulu kwa ogwiritsa ntchito:
Chifukwa cha kugwiritsira ntchito kudzipatula kwa njira zitatu, palibe chifukwa cha mizere yoyambira pansi, zomwe zimabweretsa kuphweka kwakukulu pakupanga ndi kumanga pa malo.
Zofunikira pazida zomwe zili m'malo owopsa zimachepetsedwa kwambiri, ndipo palibe chifukwa chogwiritsa ntchito zida zapadera pamalopo.
Popeza kuti mizere yowonetsera sifunikira kugawana pansi, kukhazikika ndi kutsutsa kusokoneza mphamvu zozindikiritsa ndi kuwongolera zizindikiro za malupu zimalimbikitsidwa kwambiri, motero kumapangitsa kudalirika kwa dongosolo lonse.
Chotchinga chakutali chotchinga chimakhala ndi mphamvu zosinthira ma sigino, ndipo chimatha kuvomereza ndikusintha ma siginecha monga ma thermocouples, kukana kwamafuta, ndi ma frequency, zomwe chotchinga chitetezo cha zener ichi sichingachite.
Chotchinga chachitetezo chakutali chimatha kutulutsa ma siginecha awiri odzipatula kuti apereke zida ziwiri pogwiritsa ntchito gwero lomwelo, ndikuwonetsetsa kuti zizindikiro za zida ziwirizi sizikusokonezana, ndipo nthawi yomweyo zimawongolera magwiridwe antchito achitetezo chamagetsi pakati pa olumikizidwa. zipangizo.
Zomwe zili pamwambazi ndi za ndondomeko yogwirira ntchito ndi ntchito ya chitetezo cha chitetezo, komanso chidziwitso cha kusiyana pakati pa chitetezo cha chitetezo ndi kudzipatula.Chizindikiro chodzipatula nthawi zambiri chimatanthawuza chodzipatula chazidziwitso mu dongosolo lofooka lamakono, lomwe limateteza mawonekedwe apansi apansi ku chikoka ndi kusokoneza dongosolo lapamwamba.Chotchinga chodzipatula cholumikizira chimalumikizidwa pakati pa dera lotetezedwa mwachilengedwe ndi dera lopanda chitetezo chamkati.Chida chomwe chimachepetsa mphamvu yamagetsi kapena yapano yomwe imaperekedwa kudera lotetezedwa mkati mwa mtunda wotetezeka.
Nthawi yotumiza: Nov-26-2022