Indlela Yokuhlola Ukushintsha Kokucindezela (Izinyathelo Eziyisi-6)

Ekupheleni kwalesi sihloko, uzokwazi ukuthi ungavivinya kanjani kalula futhi ngempumelelo inkinobho yokucindezela.

Wonke amaswishi okucindezela kufanele abe nomkhawulo wendawo efile ukuze asebenze kahle. Ibhande elifile liwumehluko phakathi kwamaphuzu okubeka ingcindezi nokuwa, angatholakala kalula. Indawo efile ibeka umkhawulo wokwenza nokuphula ukuxhumana kukagesi ocingweni. Njengomuntu osebenza ngesandla, ngokuvamile kufanele ngihlole futhi ngixazulule izinkinga ze-deadband kumadivayisi afana neziqandisi ze-HVAC. Ukwazi i-deadband threshold ye-pressure switch yakho kuyisihluthulelo sokuqonda nokuxazulula inkinga iswishi yakho yokucindezela kanye nawo wonke amanye amadivayisi ewalawulayo.

Ngokuvamile, inqubo yokuhlola ukuthi i-pressure switch yakho inomkhawulo wendawo efile ilula.

• Nqamula inkinobho yokucindezela kudivayisi eyilawulayo.
• Linganisa iswishi yengcindezi ngesikali se-DMM nanoma yisiphi esinye isikali esikahle.
• Xhuma iswishi yokucindezela emthonjeni wokucindezela njengepompo yesandla exhunywe kugeji yokucindezela.
• Khulisa ukucindezela kuze kube yilapho ukushintsha kokucindezela kushintsha kusukela ekuvulekeni kuya kokuvalekile.
• Rekhoda inani elikhulayo lengcindezi ebekiwe
• Kancane kancane yehlisa ukucindezela kuze kube yilapho ukushintsha kokucindezela kushintsha kusukela ekuvulekeni kuya kokuvalekile.
• Rekhoda ukusetha kwengcindezi yokwehla
• Bala umehluko phakathi kwengcindezi ekhuphukayo neyehlayo kumaphayinti angcono kakhulu

Ngizogxila kulokhu.

Ihlola inkinobho yokucindezela

Ukuhlola inkinobho yokucindezela akuyona inqubo enzima. Inqubo elandelayo izokusiza ukuthi uhlole ngokunembile umkhawulo we-deadband switch switch.

Setha idivayisi

Okokuqala, udinga ukusetha idivayisi; izinyathelo ezilandelayo zizosiza:

Isinyathelo 1: Nqamula iswishi yokucindezela

Nqamula inkinobho yokucindezela kudivayisi eyilawulayo ngokucophelela nangokunensa. Amadivayisi alawulwa ukushintsha kwengcindezi ahlanganisa ama-HVAC, amaphampu omoya, amabhodlela egesi nokunye.

Isinyathelo sesi-2: Ukulinganisa Ukushintsha Kwengcindezi

Ukulinganiswa okunembile kocingo kubalulekile ukuze kutholwe futhi kulungiswe amaphutha endaweni yokushintsha kanye ne-deadband. Ngaphezu kwalokho, ukulinganisa konga isikhathi ngokunciphisa inani lemishini esetshenziswayo. Ngincoma ukukhetha i-calibrator elungile ukuze uguqule inqubo yokulinganisa ngokuzenzakalelayo. (1)

Manje xhuma i-calibrator (noma i-DMM) kumatheminali okukhiphayo avamile futhi avame ukuvula weswishi yokucindezela.

Isikali se-DMM sikala "i-open circuit". Futhi, qiniseka ukuthi isikali se-DMM singakwazi ukuphatha i-voltage elinganiswayo - lapho ikala i-AC voltage.

Isinyathelo sesi-3 Xhuma inkinobho yokucindezela emthonjeni wokucindezela.

Ungakwazi ukuxhuma inkinobho yokucindezela empompini yesandla exhunywe kugeji yokucindezela.

Ukwanda kwengcindezi

Isinyathelo sesi-4: Khulisa ingcindezi yeswishi yokucindezela

Khulisa ingcindezi yomthombo kusethingi yeswishi yokucindezela kuze kube yilapho (iswishi yokucindezela) ishintsha isimo ukusuka kokuthi "kuvaliwe" kuya "kuvuliwe". Rekhoda inani lokucindezela ngokushesha ngemva kokuba i-DMM ibonise "i-short circuit"; kodwa-ke, uma usebenzisa isilinganisi, sizorekhoda inani - awudingi ukurekhoda mathupha.

Ukucindezela kokuwa

Isinyathelo sesi-5: Yehlisa kancane kancane ingcindezi ye-relay

Phakamisa ingcindezi iye kumfutho wokushintsha okuphezulu. Bese wehlisa ukucindezela kancane kancane kuze kube yilapho inkinobho yokucindezela ishintsha kusukela ekuvaleni kuya ekuvulekeni. Bhala phansi inani lokucindezela. (2)

Ukubalwa kwebhendi efile

Isinyathelo sesi-6: Bala i-Deadband Threshold

Khumbula amanani okucindezela alandelayo owarekhoda ezinyathelweni ezedlule:

• Setha Ingcindezi - Irekhodwe njengoba ingcindezi ikhuphuka.
• Ingcindezi yokusetha - Irekhodwa lapho ingcindezi yehla.

Ngalezi zinombolo ezimbili, ungakwazi ukubala ingcindezi ye-deadband usebenzisa ifomula:

I-Dead band pressure = Umehluko phakathi kwe-setpoint ye-pressure setpoint kanye ne- dropping pressure release point.

Imiphumela yenani lendawo efile

Inhloso eyinhloko yokuba nebhendi efile (ehlukile phakathi kokunyuka kwengcindezi nokuncipha kwamaphuzu) ukugwema ukugxuma kokushintsha. Ibhande elifile lethula inani le-threshold lalapho isistimu kagesi kufanele ivuleke noma ivale.

Ngakho-ke, ukuze usebenze kahle, umshini wokucindezela kufanele ube nendawo efile. Uma ungenayo ibhande elifile, inkinobho yakho yokucindezela inephutha futhi idinga ukushintshwa noma ukulungiswa, kuye ngomonakalo.

Ukufingqa

Njengoba sekushiwo kakade, ukucindezela komngcele wendawo efile kufanele kube okuphawulekayo ekusebenzeni kahle komshini wokucindezela kanye nedivayisi esebenza kuyo. Inqubo ilula: setha inkinobho yokucindezela, uyixhume kudivayisi, ukhuphule ingcindezi, wehlise ingcindezi, urekhode amanani wephoyinti lokucindezela futhi ubale umkhawulo wokufa.

Ngikholwa ukuthi izinyathelo ezinemininingwane nemiqondo yalo mhlahlandlela izokusiza ukuthi uhlole inkinobho yokucindezela ngendlela elula futhi uqonde ukubaluleka kwayo.

Bheka ezinye zezihloko zethu ngezansi.

• Indlela yokuxhuma iswishi yokucindezela kwe-AC enezintambo ezi-3
• Indlela yokuhlola inkinobho yokukhanya nge-multimeter
• Iyiphi intambo yokuxhuma amabhethri amabili angu-12V ngokuhambisana?

Izincomo

(1) inqubo yokulinganisa - https://www.sciencedirect.com/topics/engineering/

inqubo yokulinganisa

(2) ukucindezela okukhulu - https://www.sciencedirect.com/topics/engineering/

ingcindezi yokusebenza ephezulu

Isixhumanisi sevidiyo

Indlela Yokuhlola I-Pressure Switch Nge-Fluke 754 Documenting Process Calibrator