Isixhobo esiphambili se-actuator ye-pneumatic yiivelufa elawulayoummisi-ndawo. Isebenza ngokuhambelana ne-actuator ye-pneumatic ukunyusaukuchaneka kwendawo yevalvu, nciphisa imiphumo ye-medium engalinganiyo yamandla kunye ne-stem friction, kwaye uqinisekise ukuba i-valve isabela kwisignali yomlawuli. ukufikelela kwindawo efanelekileyo.

Le miqathango ilandelayo yenza kube yimfuneko ukuba kusetyenziswe i-locator:
Xa uxinzelelo oluphakathi luphezulu kwaye kukho umahluko omkhulu woxinzelelo; 2. Xa umgangatho wevalve elawulayo inkulu (DN>100);
3. Ivalve elawula ubushushu obuphezulu okanye obuphantsi;
4. Xa kubalulekile ukukhawulezisa umsebenzi wevalve elawulayo;
5. Xa iimpawu ezisemgangathweni zisetyenziselwa ukuqhuba ii-activators kunye neentlobo zentwasahlobo ezingaqhelekanga (izahlulo zasentwasahlobo ngaphandle kwe-20-100KPa);
6. Nanini na xa kusetyenziswa ulawulo loluhlu lokucalula;
7. Xa ivalve ijikisiwe, i-air-to-close kunye ne-air-to-open directions iyatshintshana;
8. Xa i-positioner cam idinga ukuguqulwa ukuze utshintshe iimpawu zokuhamba kwevalve;
9. Xa kufuneka kuphunyezwe isenzo esilungeleleneyo, akukho sixhobo sokwenza ipiston okanye isixhobo sokubulala entwasahlobo;
10. Izivalo zevalvu zombane kufuneka zisasazwe xa kusetyenziswa iisignali zombane ukulawula ii-actuator zepneumatic.

Ivalve ye-electromagnetic: I-valve ye-solenoid kufuneka ifakwe kwinkqubo xa ulawulo lweprogram okanye ulawulo lweendawo ezimbini lufunekayo. Ukusebenzisana phakathi kwevalve ye-solenoid kunye nevalve yokulawula kufuneka kuthathelwe ingqalelo xa ukhetha ivalve ye-solenoid ukongeza kumthombo wamandla we-AC kunye ne-DC, i-voltage, kunye nobuninzi. Inokuba nomsebenzi "ovulekileyo" okanye "uvaliwe ngokwesiqhelo".
Iivalve ezimbini ze-solenoid zingasetyenziselwa ngokuhambelanayo ukuba kuyimfuneko ukunyusa umthamo we-solenoid ye-solenoid ukwenzela ukunciphisa ixesha lesenzo, okanye i-valve ye-solenoid ingasetyenziswa njenge-valve yokuqhuba ngokubambisana ne-relay yomthamo omkhulu we-pneumatic.

I-pneumatic relay: I-pneumatic relay luhlobo lwe-amplifier yamandla enokuthi idlulisele umqondiso woxinzelelo lomoya kwindawo ekude ukuze isuse i-lag eziswe kukwandiswa kombhobho. Phakathi komlawuli kunye ne-valve yokulawula intsimi, kukho umsebenzi owongezelelweyo wokukhulisa okanye ukunciphisa umqondiso. Ngokuyintloko isetyenziswa phakathi komthumeli wentsimi kunye nesixhobo sokulawula kwigumbi eliphakathi lolawulo.

umguquli:
Umguquleli uhlukaniswe kwi-converter yegesi-yombane kunye ne-electric-gas converter. Umsebenzi wayo kukuqonda ukuguqulwa okufanayo kobudlelwane obuthile phakathi kwegesi kunye neempawu zombane. Isetyenziselwa ikakhulu ukuguqula i-0 ~ 10mA okanye i-4~ 20mA yokuguqulwa kwesignali yombane okanye i-0 ~ 100KPa isignali yegesi ibe yi-0 ~ 10mA okanye 4 ~ 20mA isignali yombane.

isilawuli sezihluzi zomoya:

Isincamathelisi sesixhobo esisetyenziswa kunye nezixhobo ezizisebenzelayo zeshishini sisihluzo somoya ivelufa ethoba uxinzelelo. Umsebenzi wayo ophambili kukuzinzisa uxinzelelo kwinqanaba elifunekayo ngelixa lihluza kwaye licoca umoya oxinanisiweyo ovela kwicompressor yomoya. Isilinda somoya, izixhobo zokutshiza, imithombo yonikezelo komoya, kunye nezixhobo zokuzinzisa uxinzelelo lwezixhobo ezincinci zomoya zeminye yemizekelo yezixhobo zomoya kunye neevalvu zesolenoid ezinokuthi zisetyenziswe kuzo.

Ivalve yokhuseleko (ivalve yokuzivalela)

Ivalve yokuzivalela yindlela egcina ivalve isendaweni. Xa umthombo womoya ungaphumeleli, isixhobo sinokulucima umqondiso womthombo womoya ukuze sigcine i-membrane chamber okanye isiginali yoxinzelelo lwesilinda kwinqanaba layo langaphambili lokungaphumeleli kunye nendawo yevalvu kwindawo yayo yangaphambili yokusilela. Kwisiphumo sokukhusela isikhundla.

indawo yokuhambisa iivalvu
Xa i-valve yokulawula ikude negumbi lokulawula, kuyimfuneko ukuxhobisa i-valve position transmitter, eguqula ukuchithwa kwe-valve yokuvula i-valve ibe ngumqondiso wombane kwaye uyithumele kwigumbi lokulawula ngokuhambelana nomgaqo omiselweyo, ukuze qonda ngokuchanekileyo indawo yokutshintsha kwevalve ngaphandle kokuya kwindawo. Isignali isenokuba luphawu oluqhubekayo olumele nakuphi na ukuvuleka kwevalvu okanye inokuthathwa njengomsebenzi wokubuyisela umva wesimiseli-valve.

Unxibelelwano lutshintsha ngelixa uhamba
Ukutshintsha okulinganiselweyo licandelo elithumela ngaxeshanye uphawu lwesalathisi kwaye libonisa iindawo ezimbini ezigqithisileyo zevalvu. Igumbi lokulawula linokubika isimo sokutshintsha kwevalve ngokusekelwe kulo mqondiso kwaye uthathe isenzo esifanelekileyo.