Phello ea pneumatic valve positioner pneumaticbelofoe koetse mabaka a mantlha le tharollo
Valve positioner (eo hape e bitsoang: Pneumatic valve positioner) ke karolo ea bohlokoa ea ho lokisa valve, hangata e sebelisoa ka pneumatic self-activating control valve, e tsamaisoa ke lets'oao la tlhahiso ea molaoli, 'me ka lets'oao la eona le tsoang ho laola boinotšing. valve e laolang, ha boemo ba valve ea taolo, stem offset e khutlisetsoa sebakeng sa valve ka sesebelisoa sa elektroniki, boemo ba Valve bo romelloa ho software ea sethaleng ho latela lets'oao la motlakase.
Valve positioner (eo hape e bitsoang: Pneumatic valve positioner) ke karolo ea bohlokoa ea ho lokisa valve, hangata e sebelisoa ka pneumatic self-activating control valve, e tsamaisoa ke lets'oao la tlhahiso ea molaoli, 'me ka lets'oao la eona le tsoang ho laola boinotšing. valve e laolang, ha boemo ba valve ea taolo, stem offset e khutlisetsoa sebakeng sa valve ka sesebelisoa sa elektroniki, boemo ba Valve bo romelloa ho software ea sethaleng ho latela lets'oao la motlakase. Sebopeho sa valve positioner: valve positioner ho latela sebopeho le molao-motheo e ka aroloa ka pneumatic valve positioner, motlakase-gas valve positioner intelligent valve positioner. Valve positioner e ka eketsa matla a phallo ea li-valve, ea fokotsa sekhahla sa phetisetso ea lets'oao, ea potlakisa lebelo la stem, e ka ntlafatsa valve ea mohala, ea tlosa matla a ho ferekana ha stem le ho tlosa tšusumetso ea matla a sa leka-lekaneng, ho netefatsa boemo bo nepahetseng le bo nepahetseng ka botlalo. ea valve ea ho fetola. Mofuta o lumellanang oa "valve positioner" o tloaelehileng oa actuator pneumatic actuator, actuator ea motlakase, tlhophiso e otlolohileng ea stroke, Phapang ea tlhophiso ea Angle stroke.
E sebelisetsoa ho iketsetsa, mofuta oa matsoho o bulehileng le ho koala mefuta eohle ea li-valve, li-fan, joalo-joalo. Letšoao la "valve stem offset" le nkuoa e le lets'oao le nepahetseng la ho lekanya, 'me lets'oao la boto ea taolo le nkuoa e le lets'oao la ho bapisa. Ha tse peli li fapane, lets'oao la tlhahiso ho actuator le fetoloa ho etsa boemo ba actuator, 'me mangolo a le mong ho ea ho a le mong pakeng tsa linako tsa li-valve stem offset le pontšo ea phallo ea boto ea taolo e thehiloe.
Ka hona, sebaka sa valve se etsa mokhoa oa ho laola maikutlo ka stem offset e le pontšo e nepahetseng ea tekanyo le tlhahiso ea boto ea taolo e le pontšo ea ho beha. Phapang ea taolo ea sistimi ea taolo ke lets'oao la tlhahiso ea sebaka sa valve ho actuator. Senotlolo sa "valve positioner" ka har'a lets'oao se arotsoe ka "pneumatic valve positioner" le "valve positioner" ea lisebelisoa tsa motlakase. Letšoao la ho kenya li-valve tsa pneumatic ke lets'oao le tloaelehileng la khase, mohlala, 20 ~ 100kPa lets'oao la khase, lets'oao la eona la tlhahiso le eona ke lets'oao le tloaelehileng la khase. Letšoao la ho kenya mochini oa lisebelisoa tsa motlakase ke phallo e tloaelehileng ea motlakase kapa lets'oao la motlakase le sebetsang, joalo ka 4 ~ 20mA lets'oao la phallo ea motlakase kapa 1 ~ 5V lets'oao la motlakase le sebetsang, sesebelisoa sa motlakase sa valve positioner sebopeho sa kahare se tla fetoloa matla a matla a khoheli, ebe khase e tsoang. pontšo ho valve ea ho laola khatello ea rotary. Ho ea ka tataiso ea sebaka, e ka aroloa ka "valve positioner" e le 'ngoe le "valve" e habeli.
Unilateral valve positioner e nang le mochini oa piston actuator, valve positioner ke boemo bo le bong feela bo bapalang karolo, boemo ba li-valve tse peli bo sebetsa ka mahlakoreng a mabeli a silinda ea mochini oa piston, e bapala karolo litseleng tse peli. Ho ea ka tlhahiso ea sebaka sa li-valve le boleng ba phaello ea lets'oao la ho kenya le tšoailoeng hore e be sebakeng se setle sa valve le se behang sebaka sa karabelo.
Ha lets'oao la ho kenya letsoho la boemo bo botle ba li-valve le phahamisoa, lets'oao la tlhahiso le boetse le eketsoa, e le hore phaello e be ntle.
Ha lets'oao la ho kenya la "action valve positioner" le phahamisoa, lets'oao la tlhahiso le fokotsehile mme boleng ba phaello bo mpe. Ho latela lets'oao la ho kenya li-valve ke lets'oao la ketsiso kapa lets'oao la data, le ka aroloa ka sebopeho sa valve se akaretsang le sebopeho sa komporo ea lisebelisoa tsa motlakase tsa mochini.
Letšoao la mofuta oa "valve positioner" ka kakaretso ke papiso ea khatello e tloaelehileng kapa phallo ea motlakase, lets'oao la motlakase o sebetsang, segokanyimmediamentsi sa sebolokigolo sa lisebelisoa tsa motlakase tsa mofuta oa lets'oao la mofuta oa khomphutha ke lets'oao la khomphutha ea dijithale. Ho ea ka sebaka sa valve ha se na CPU e ka aroloa ka kakaretso ea lisebelisoa tsa motlakase tsa motlakase le tse bohlale tsa motlakase.
Sesebelisoa se akaretsang sa lisebelisoa tsa motlakase ha se na CPU, ka hona, ha se na bohlale, ha se khone ho rarolla lipalo tse bohlale tse amehang. Intelligent valve positioner e nang le CPU, e ka rarolla lipalo tse bohlale tse amanang, joalo ka puseletso ea sperm rate rate channel discrete system, k'homphieutha ea khomphutha ea lisebelisoa tsa motlakase ea li-valve le eona e ka nka PID le li-module tse ling tsa lenaneo, ea phethela lipalo tse tsamaellanang. Li-valve tsa pneumatic li koetse mabaka a mantlha le tharollo pele ho tsohle, a re hlahlobeng valve ea pneumatic valve e itšebetsang e koetsoeng ke eona e etsang hore valve e be le palo e itseng ea ho lutla, ho bona hore na ho lutla ha valve ho phahame ho feta boleng bo tloaelehileng, ho feta ke bothata ba boleng ba sehlahisoa. Ea bobeli, tlhahiso ea converter ea motlakase ha e kopane le khatello e sebetsang ea filimi ea valve. Hore na valve e khomaretsoe mobung.
Pele ho tsohle, a re hlahlobeng valve ea pneumatic valve e itšebetsang e koetsoeng ke eona e etsang hore lemati le be le palo e itseng ea ho lutla, ho bona hore na ho lutla ha valve ho phahame ho feta boleng bo tloaelehileng, ho feta ke bothata ba boleng ba sehlahisoa. Ea bobeli, tlhahiso ea converter ea motlakase ha e kopane le khatello e sebetsang ea filimi ea valve. Hore na valve e khomaretsoe mobung.
Matla a spring ea valve ha a kopane hantle. Hore na kutu e tsitsitse.
Li-valve core, khatello e phahameng ea heke ea li-valve ka karolo ea filimi ea hlooho ea valve disc leakage steam.
Liphoso tse tloaelehileng tsa sesebelisoa sa boemo.
Belofo ea ho bula moea, matla a axial ea zero torsion spring a maholo haholo. The stem e khutšoanyane haholo.
Fetola valve pele le ka mor'a phapang ea khatello e kholo haholo, bothata ke bofe ba khetho ea mohlala.
Hore na matla a phallo ea motlakase a nyane haholo, khatello e kholo e sebetsang e ka feto-fetohang (PF ho holisa matla a tlhahiso, bakeng sa valve ea ho koala khase, ho potoloha ka letsohong le letšehali la karolo ea phetoho (e hlephileng), ke hore, PO ~ PL shift, empa ho hlokahala. ho ela hloko phetoho ea tlhophiso e felletseng ea stroke No.
Re ka qala ka ho fumana lebaka mme ra sebelisa tharollo ho tsoa polelong e ka holimo. Haeba u na le valve ea letsoho ea pneumatic, joale nako le nako ha e emisoa, tlohella motho e mong le e mong a itšoare a shoele, empa hape a tlohelle basebetsi ba dashboard, ba lekanye hape, lefela le ho lekanya sesebelisoa sa boemo hape; Ho na le mabaka a mangata a hore na ke hobane'ng ha tlhophiso ea maeto a ho koala e sa sebetse, kutu ea valve e sa sebetse ka mokhoa o itseng, 'me khatello ea khase e hatelitsoeng e fihlile ho maemo. Ntlha ea pele, beha boleng ba sebaka sa valve, ebe u lokisa boemo ba ho koala tlhophiso ea maeto; Li-valve ke li-valve tsa moea - tse bulehileng kapa tsa moea - tse koalang. Haeba e le valve ea khase, e khona ho bona khatello e sebetsang ea valve ea pneumatic, sesebelisoa sa ho beha seletsa sa zero ha se na bothata, ho phaella moo, ha ho na valve ea karete. Haeba e le valve e bulehileng ea khase, valve ea pneumatic e robehile, valve e lokela ho koaloa. Haeba e sa koaloa, e ka 'na eaba poleiti ea potoloho ea oli ea valve ha e na lintho tse litšila tse khomaretsoeng; Haeba valve e koetsoe ka phoso, ho etsoa tlhahiso ea ho botsa hore na khatello ea mochine oa sesebelisoa e lekane, ke hore, hore na khatello ea khatello ea sebaka se ka fetola khatello ea ho sebetsa ea valve e koetsoeng; Sheba khatello ea ho sebetsa ea valve ea pneumatic ha e lekane, ebe u sheba valve hore na ho na le boemo ba karete, kapa ho lutla, hape ho koetsoe.
Sesebediswa se loketseng sa pele sa ho beha maemo leka; Sephahla sa moea: 1, matla a axial a selemo ha a lekane, a ka eketsoa ka nepo. 2, boemo ba ho sebetsa bo lumella, valve e lokela ho tlosoa ho etsa tlhahlobo ea khatello, ho nka monyetla ona ho hlahloba boemo ba ho tiisa ha valve core ea khatello e matla ea heke, le hore na ho na le tšenyo ea mokokotlo oa valve le khatello e phahameng ea heke.
3. Haeba nyeoe ea ho se koalehe hape e etsahala, valve e ka khaoloa ho hlahloba hore na ho na le lintho tse silafetseng sebakeng sa khatello e phahameng ea heke ea pelo ea valve. 4. 1. Matla a axial a selemo a maholo haholo, a ka fokotsoang ka nepo. 2.
3, haeba boemo bo boetse bo bonahala bo le haufi le ha bo shoele, bo ka khaola valve, hlahloba hore na ho na le lintho tse silafetseng ho valve ea pelo e phahameng khatello ea heke ea 4, hlahloba valve ea pneumatic valve e sebetsang ha e fosahetse 5, hlahloba hore na ho na le tšenyo. ho valve disc 6, hlahloba hore na ntlha ea zero ea valve e phahame haeba mosebetsi o etsoa ka mor'a ketsahalo e haufi e sa shoeleng, ho etsoa tlhahiso ea ho hlahloba mekhahlelo e meholo ea valve ho bona hore na ho na le phapang pakeng tsa li-parameter tse ka sehloohong tse hlophisitsoeng le boemo ba sebele ba ho sebetsa.
Nako ea poso: Mar-01-2023
