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Umehluko phakathi kwezinzwa zokucindezela, ama-relay namaswishi

1. Sonke sivame ukuzwa mayelana nenzwa yokucindezela, i-pressure relay kanye ne-pressure switch. Ingabe axhunyiwe? Uyini umehluko? Okulandelayo isingeniso esiningiliziwe salezi zintathu. Inzwa yokucindezela yenziwe ngento ezwela ukucindezela kanye nesekethe yokuguqula, eyenza ukukhishwa kwamanje okushintshile kancane noma ku-voltage kusici esizwela ukucindezela ngokusebenzisa ukucindezela kwendawo elinganisiwe. Izinzwa ngokuvamile zidinga ukusetshenziswa ngokuhambisana namasekhethi weamplifier wangaphandle ukuze kuqedelwe inqubo kusukela ekutholweni kwengcindezi ukuze kulawulwe futhi kuboniswe. Ngenxa yokuthi inzwa yokucindezela iyingxenye eyinhloko, isignali ebuyiselwa emuva yinzwa yokucindezela idinga ukucutshungulwa, ihlaziywe, igcinwe futhi ilawulwe uhlelo lokulinganisa nokulawula, okwenza imishini yezimboni ezishintshayo kanye nokulawula ukusebenza kobunjiniyela kuhlakaniphe kakhulu.

2. I-pressure relay iyisici sokuguqulwa kwesignali yeswishi ye-electro-hydraulic esebenzisa umfutho owuketshezi ukuvula nokuvala othintana nabo kagesi. Isetshenziselwa ukuthumela amasignali kagesi ukulawula izenzo zezingxenye zikagesi lapho ingcindezi yesistimu ifinyelela ingcindezi emisiwe ye-relay, ukuze kuqashelwe ukulayisha noma ukulayisha ukulawulwa kwepompo, izenzo ezilandelanayo zama-actuator, ukuvikelwa kokuphepha. kanye nokuhlangana kwesistimu, njll. Iqukethe izingxenye ezimbili: ingxenye yokuguqula ukucindezela kanye ne-microswitch. Ngokwezinhlobo zesakhiwo zezingxenye zokuguqula ukucindezela, kunezinhlobo ezine: uhlobo lwe-plunger, uhlobo lwentwasahlobo, uhlobo lwe-diaphragm kanye nohlobo lwe-bellows. Phakathi kwazo, isakhiwo se-plunger sihlukaniswe ngohlobo olulodwa lwe-plunger kanye nohlobo lwe-plunger oluphindwe kabili. Uhlobo lwe-plunger olulodwa lungahlukaniswa ngezinhlobo ezintathu: i-plunger, i-differial plunger kanye ne-plunger-lever. Ngokusho koxhumana naye, kukhona ukuxhumana okukodwa kanye ne-double electric shock.

3. I-pressure switch iyiswishi esebenzayo evula noma ivale ngokuzenzakalelayo lapho ifinyelela inani elibekiwe ngokuya ngomfutho obekiwe.

4. Amaswishi okucindezela nokucindezela okudluliselwayo kungavulwa noma kucishwe kuphela ngaphansi kwengcindezi oyinikezile, esetshenziselwa ukulawula indawo elula. Konke kuyimiphumela yokushintsha! I-pressure relay inganikeza ama-node amaningi okukhiphayo noma izinhlobo ze-node kuneswishi yokucindezela. Okukhiphayo kwenzwa yokucindezela kungaba isignali ye-analog noma isignali yedijithali, elungele ukucubungula ngemva kokucubungula, futhi ingashintshwa ibe isignali evamile yokudlulisela ukudlulisa okukude.