Izindaba

I-valve ye-proportional kagesi ebizwa ngokuthi i-proportional valve.Isici sayo ukuthi inani lokukhiphayo liyashintsha ngenani lokokufaka.Kunobudlelwano obuthile bokulinganisa phakathi kokuphumayo nokokufaka, ngakho-ke kubizwa ngokuthi i-valve yokulinganisa kagesi.

I-valve ye-proportional yakhiwe i-electro-mechanical converter kanye ne-pneumatic amplifier, futhi iyisistimu yokulawula iluphu evaliwe.Isistimu ithola ngokuqhubekayo okukhiphayo (ingcindezi) ekugcineni kokukhiphayo bese ikubuyisela ekugcineni kokufakwayo kwesistimu ukuze iqhathanise nokokufaka (kufanele inani).Lapho inani langempela lokuphumayo (inani lokucindezela) lichezuka kokokufaka (inani elilindelekile), isistimu ilungisa ngokuzenzakalelayo okukhiphayo ukuze iguqule isiqondiso eduze kokokufakayo, ukuze kuqinisekiswe ukuthi okukhiphayo kuzinzile ngaphakathi kwevelu yokucindezela edingekayo. ngokokufaka.Gcina ubudlelwano obulinganayo phakathi kokukhiphayo nokokufaka.

Izici:

Ingcindezi yokuphumayo iyashintsha ngesignali yokufaka, futhi kukhona ukulinganisa okuthile

ubudlelwano phakathi kwengcindezi yokuphumayo nesignali yokufaka.

Ngekhono lokulawula i-voltage engenazinyathelo.

Ngekhono lokulawula okude kanye nokulawula uhlelo: inani elifanele le-valve yokulinganisa lihlelwe ukuxhumana, ukudluliswa kwesignali yesilawuli kude kuzinzile, futhi ibanga lokulawula linganwetshwa.Ingabonakala nge-PC, i-single chip microcomputer, i-PLC nezinye izinto zokusebenza.

Qaphela:

1. Ngaphambi kwe-valve yokulinganisa kagesi, isihlungi somoya kanye nesihlukanisi senkungu yamafutha esinokunemba kokuhlunga kwe-5μm noma ngaphansi kufanele kufakwe.Nikeza umoya ocindezelwe ohlanzekile futhi owomile ku-valve yokulingana ukuze uzuze izici ezihlukahlukene ze-valve yokulingana kagesi.

2. Ngaphambi kokufaka, amapayipi kufanele ahlanzwe.

3. Ayikho into yokuthambisa okufanele ifakwe ekugcineni kwevalvu yokulingana.

4. I-valve yokulinganisa inqamula ukunikezwa kwamandla esimweni sokucindezela, futhi ukucindezela ohlangothini lokuphuma kungagcinwa okwesikhashana, okungaqinisekisiwe.Uma udinga ukuphuma, vala amandla ngemva kokwehlisa ukucindezela okusethiwe, bese usebenzisa i-valve yokukhulula ukucindezela kwensalela ukuze uvule.

5. Esimeni sokulawula se-valve yokulinganisa, ukucindezela ohlangothini lwe-outlet kungagcinwa kanye ngenxa yokwehluleka kwamandla noma okunye ukulahlekelwa kwamandla.Ngaphezu kwalokho, lapho uhlangothi lokuphuma luvulelwa emkhathini, ingcindezi izoqhubeka yehlela kumfutho womkhathi.

Ngemuva kokuthi i-valve yokulinganisa inikwe amandla, uma ingcindezi yokuhlinzeka inqanyuliwe, i-valve ye-solenoid isazoqhubeka isebenza, ezokhiqiza umsindo ophumayo futhi inciphise ukuphila kwayo.Ngakho-ke, ukunikezwa kwamandla kufanele kunqunywe lapho umthombo wegesi unqanyulwa, ngaphandle kwalokho i-valve elinganayo izongena "esimeni sokulala".

6. Umkhiqizo we-valve olinganiselayo ulungisiwe ngaphambi kokushiya imboni, sicela ungawuhlakazi ukuze ugweme ukungasebenzi.

7. Uma i-valve yokulingana ingasebenzisi okukhiphayo kokuqapha (ukushintsha okuphumayo), intambo yokukhipha ukuqapha (intambo emnyama) ayikwazi ukuthintana nezinye izintambo ukuze igweme ukungasebenzi.Ukusetshenziswa kwemithwalo ye-inductive (ama-solenoid valves, ama-relay, njll.) kumele kube nezinyathelo zokumunca i-over-voltage.

8. Gwema ukungasebenzi kahle okubangelwa umsindo kagesi.Lo mkhiqizo kanye nezintambo zawo kufanele kube kude ne-motor kanye nolayini wamandla ukuze ugweme ithonya lomsindo wamaphuzu.

9. Uma uhlangothi lokuphumayo lunomthamo omkhulu futhi umsebenzi wokuchichima usetshenziswa njengenhloso, umsindo wokukhipha umoya omkhulu ngesikhathi sokuchichima, futhi imbobo yokukhipha umoya kufanele ifakwe isithulisi.

10. Uma inani elilindelekile lingaphansi kuka-0.1V, libhekwa njengo-0V.Kulesi simo, ukucindezela okukhiphayo kusethelwe kubha engu-0 ngokuvula i-valve yokukhipha umoya futhi igesi elisegunjini le-valve elilinganayo liyaphela.

11. Ngaphambi kokunqamula ukunikezwa kwamandla kwe-valve ye-proportional, sicela uqiniseke ukuthi unqamula i-value ye-value (ngaphansi kuka-0.1V), bese unqamula ukucindezela komthombo womoya, futhi ekugcineni unqamule ukunikezwa kwamandla kwe-valve yokulingana.

12. Izidingo zomthombo wegesi: ingcindezi yokufaka kufanele ibe nkulu kunokucindezela kokukhiphayo ngaphezu kuka-0.1MP, futhi ihlangabezane nengqikithi yokusetshenziswa kwegesi, okungukuthi, ukugeleza okokufaka kukhulu kunokugeleza kokuphumayo.