Yiziphi Izinhlobo Ezihlukene Zezinzwa Zezinga Liquid?

Izinhlobo ezahlukene zezinzwa zezinga le-liquid zihlanganisa:

Uhlobo lwe-Optical

Unamandla

I-Conductivity

I-diaphragm

Uhlobo lwebhola lokuntanta

1. Optical liquid level inzwa

Amaswishi eleveli yokubona aqinile. Basebenzisa amaledi e-infrared nama-phototransistors, ahlanganiswe ngokubonakalayo lapho inzwa isemoyeni. Uma isiphetho senzwa sicwiliswa oketshezini, ukukhanya kwe-infrared kuyabaleka, okubangele okukhiphayo ukuthi kushintshe isimo. Lezi zinzwa ziyakwazi ukubona ubukhona noma ukungabikho cishe kwanoma yiluphi uketshezi. Awakuzweli ukukhanya okuzungezile, awathintwa amabhamuza asemoyeni, futhi awathintwa amabhamuza amancane oketshezi. Lokhu kuzenza zibe usizo ezimweni lapho izinguquko zesimo zidinga ukurekhodwa ngokushesha nangokuthembekile, futhi zingasebenza ngokwethembeka isikhathi eside ngaphandle kokunakekelwa.

Ububi benzwa yeleveli yokubona ukuthi ikwazi ukunquma kuphela ukuthi uketshezi lukhona yini. Uma amazinga aguquguqukayo edingeka, (25%, 50%, 100%, njll.) ngalinye lidinga inzwa eyengeziwe.

2. I-capacitive liquid level sensor

Ukushintsha kwezinga le-capacitive kusebenzisa ama-conductor amabili (ngokuvamile abenziwe ngensimbi) kumjikelezo onebanga elifushane phakathi kwabo. Lapho umqhubi ecwiliswa oketshezini, uqedela isifunda.

Inzuzo ye-capacitive level switch ukuthi ingasetshenziswa ukunquma ukuphakama noma ukuwa koketshezi esitsheni. Ngokwenza umqhubi abe nobude obufanayo nesitsha, amandla phakathi kwabaqhubi angalinganiswa. Akukho capacitance kusho akukho uketshezi. I-capacitor egcwele isho isitsha esigcwele. Udinga ukurekhoda izilinganiso "ezingenalutho" kanye "nokugcwele" bese ulinganisa imitha ngo-0% no-100% ukukhombisa izinga.

Nakuba izinzwa zeleveli ye-capacitive zinenzuzo yokungabi nezingxenye ezihambayo, enye yezinto ezimbi zazo ukuthi ukugqwala kwe-conductor kushintsha amandla kakhondakta futhi kudinga ukuhlanzwa noma ukulinganisa kabusha. Aphinde azwele kakhulu ohlotsheni loketshezi olusetshenziswayo.

3. Conductive liquid level inzwa

I-conductive level switch iyinzwa ethintana nogesi ezingeni elithile. Sebenzisa amakhondaktha amabili noma ngaphezulu avaleleke aneziphetho eziveziwe ze-inductive epayipini elehlela oketshezini. Isikhathi eside sithwala i-voltage ephansi, kuyilapho i-conductor emfushane isetshenziselwa ukuqedela umjikelezo lapho izinga likhuphuka.

Njengokushintsha kweleveli ye-capacitive, ukushintshwa kwezinga le-conductive kuncike ekusebenzeni koketshezi. Ngakho-ke, afaneleka kuphela ukulinganisa izinhlobo ezithile zoketshezi. Ngaphezu kwalokho, lezi ziphetho zokuzwa izinzwa zidinga ukuhlanzwa njalo ukuze kuncishiswe ukungcola.

4. Inzwa yezinga le-diaphragm

Iswishi yeleveli ye-diaphragm noma ye-pneumatic incike kumfutho womoya ukuze usunduze i-diaphragm, esebenza neswishi encane emzimbeni wedivayisi. Njengoba izinga likhuphuka, ingcindezi yangaphakathi kushubhu yokuthola iyakhuphuka kuze kusebenze i-microswitch noma inzwa yokucindezela. Lapho izinga le-liquid lehla, umfutho womoya nawo uyehla futhi iswishi iyanqanyulwa.

Inzuzo yokushintshwa kwezinga elisekelwe ku-diaphragm ukuthi asikho isidingo sokunikezwa kwamandla ethangini, ingasetshenziswa nezinhlobo eziningi zoketshezi, futhi njengoba ukushintshwa kungahlangani noketshezi. Nokho, njengoba kuyimishini, izodinga ukulungiswa ngokuhamba kwesikhathi.

5. Inzwa yezinga loketshezi lentanta

Iswishi ye-float iyinzwa yeleveli yoqobo. Ziyimishini eyimishini. I-float engenalutho ixhunywe engalweni. Njengoba iflothi iphakama futhi iwe oketshezini, ingalo iphushwa iye phezulu naphansi. Ingalo ingaxhunywa kuswishi kazibuthe noma yemishini ukuze kunqunywe ukuvula/ukucisha, noma ingaxhunywa kugeji yeleveli ekhuphuka isuka egcwele iye engenalutho njengoba izinga lehla.

I-spherical float switch ethangini lasendlini yangasese iyinzwa evamile kakhulu yezinga lokuntanta. Amaphampu e-sump aphinde asebenzise amaswishi antantayo njengendlela yokonga yokulinganisa amazinga amanzi ezimpompini zangaphansi.

Amaswishi okuntanta angakala noma yiluphi uhlobo loketshezi futhi angaklanywa ukuthi asebenze ngaphandle kokunikezwa kwamandla. Ububi bokushintshwa kwe-float ukuthi makhulu kunezinye izinhlobo zokushintshwa, futhi ngenxa yokuthi asebenza ngomshini, adinga ukuseviswa kaningi kunamanye amaswishi eleveli.