Ulwazi lwe-thermocouple nokuphepha kwe-solenoid valve yesitofu segesi

Ukuhlangana (ikhanda) le-thermocouple kufakwa elangabini lokushisa okuphezulu, futhi amandla akhiqizwayo kagesi afakwa kwikhoyili ye-valve solenoid yokuphepha efakwe ku-valve yegesi ngezintambo ezimbili. Amandla okudonsa akhiqizwa i-valve ye-solenoid amunca ingalo ku-valve ye-solenoid, ukuze igesi igeleze iye embobeni nge-valve yegesi.

Uma ilangabi licisha ngenxa yezizathu zengozi, amandla e-electromotive akhiqizwa i-thermocouple ayanyamalala noma acishe anyamalale. Ukudonsa kwe-valve ye-solenoid nakho kuyanyamalala noma kuyancipha kakhulu, i-armature ikhishwa ngaphansi kwesenzo sentwasahlobo, i-rubber block efakwe ekhanda layo ivimba imbobo yegesi ku-valve yegesi, futhi i-valve yegesi ivaliwe.

Ngenxa yokuthi amandla e-electromotive akhiqizwa i-thermocouple abuthakathaka ngokuqhathaniswa (amamilivolthi ambalwa kuphela) futhi amanje mancane kakhulu (amashumi kuphela ama-milliamp), ukumuncwa kwekhoyili ye-valve ye-solenoid yokuphepha kunomkhawulo. Ngakho-ke, ngesikhathi sokushisa, i-shaft ye-valve yegesi kufanele icindezelwe ukuze inikeze amandla angaphandle ku-armature eduze nokuqondisa kwe-axial, ukuze i-armature ikwazi ukumuncwa.

Izinga elisha likazwelonke libeka ukuthi isikhathi sokuvula se-valve ye-solenoid yokuphepha ngu-≤ 15s, kodwa ngokuvamile kulawulwa abakhiqizi ngaphakathi kwe-3 ~ 5S. Isikhathi sokukhishwa kwe-valve ye-solenoid yokuphepha siphakathi kweminyaka engu-60 ngokwezinga likazwelonke, kodwa ngokuvamile silawulwa umenzi phakathi kuka-10 ~ 20s.

Kukhona futhi lokho okubizwa ngokuthi "i-zero yesibili yedivayisi" yokuthungela, ethatha ngokuyinhloko i-valve ye-solenoid yokuphepha enamakhoyili amabili, futhi ikhoyili esanda kufakwa ixhunywe kumjikelezo wokulibaziseka. Ngesikhathi sokushisa, isifunda sokulibaziseka sikhiqiza i-current ukuze igcine i-valve ye-solenoid isesimweni esivaliwe imizuzwana embalwa. Ngale ndlela, ngisho noma umsebenzisi ekhulula ngokushesha isandla sakhe, ilangabi ngeke licime. Futhi ngokuvamile uthembele kwenye ikhoyili ukuze uvikeleke.

Isikhundla sokufakwa kwe-thermocouple sibaluleke kakhulu, ukuze ilangabi libhakwe kahle ekhanda le-thermocouple ngesikhathi somlilo. Uma kungenjalo, i-EMF ye-thermoelectric ekhiqizwa i-thermocouple ayanele, ukudonsa kwekhoyili ye-valve ye-solenoid yokuphepha kuncane kakhulu, futhi i-armature ayikwazi ukumuncwa. Ibanga phakathi kwekhanda le-thermocouple nesembozo somlilo ngokuvamile li-3 ~ 4mm.