Baetsi ba Li-valve tsa Pneumatic

The valve pneumatic e haholo-holo e entsoe ka cylinder ea moea (pneumatic actuator) le 'mele oa valve. Bakeng sa litsamaiso tse fapaneng tsa taolo, mochini o tsamaisang li-valve, annunciator, electromagnetic reversing valve le filthara e laolang khatello ea moea e tla kopanngoa hape. Ts'ebelisong ea othomathike, tlhoko ea li-valve tsa pneumatic e tla ba holimo le ho feta

Pneumatic valve ke valve e tsamaisoang ke moea o hatelitsoeng. E ka sebelisoa ho laola phallo ea mefuta e sa tšoaneng ea maro a kang moea, metsi, mouoane, mecha ea litaba e sa tšoaneng e senyang, seretse, oli, tšepe ea metsi le mecha ea radioactive. Li-valve tse tloaelehileng tsa pneumatic li kenyelletsa valve ea bolo ea moea, valve ea pneumatic butterfly, valve ea pneumatic diaphragm le pneumatic pipe clamp valve.

The valve pneumatic e haholo-holo e entsoe ka cylinder ea moea (pneumatic actuator) le 'mele oa valve. Bakeng sa litsamaiso tse fapaneng tsa taolo, mochini o tsamaisang li-valve, annunciator, electromagnetic reversing valve le filthara e laolang khatello ea moea e tla kopanngoa hape. Ts'ebelisong ea othomathike, tlhoko ea li-valve tsa pneumatic e tla ba holimo le ho feta

Moea o hatelitsoeng o sebelisoa ho khanna motsamao oa lihlopha tse ngata tsa lipiston tsa moea tse kopantsoeng ka har'a actuator, 'me matla a fetisetsoa lebaleng le pina e ka hare e kobehileng ho khanna mokokotlo oa moea o potolohang ho potoloha. The compressed air disk e fetisetsoa ho cylinder e 'ngoe le e' ngoe, 'me sebaka sa ho kena sa moea le sa ho tsoa se fetoloa ho fetola tsela e potolohang ea spindle. Ho ea ka litlhoko tsa torque e potolohang e hlokoang ke mojaro (valve), palo ea metsoako ea li-cylinder e ka fetoloa ho khanna mojaro (valve) ho sebetsa.

Li-valve tsa solenoid tse peli tse maemong a mahlano hangata li sebelisoa hammoho le mochini o sebetsang habeli oa pneumatic. Maemo ana a mabeli a laoleha maemong a mabeli: ha a tima. Li-valve tsa solenoid tse hlano li na le liteishene tse hlano tsa moea, e 'ngoe ea tsona e hokahane le mohloli oa moea, tse peli li hokahane le ho kena le ho tsoa ka phaposing ea moea e kantle ea silinda e sebetsang habeli,' me tse peli li hokahantsoe le ho kena le ho tsoa kamore ea moea e ka hare. Molao-motheo o ikhethileng oa ts'ebetso o ka bua ka molao-motheo oa ts'ebetso oa "double acting pneumatic actuator". Kaha ho na le mekhoa le mekhoa e mengata ea ho laola, ho na le mekhoa e mengata e sebelisoang ho laola li-actuator tsa pneumatic tlhahiso ea sebele ea indasteri le taolo ea indasteri, ho kenyelletsa le tse latelang.

Sesebelisoa sa ponts'o se bohlale se sebelisetsoa ho lekola boemo bo sebetsang ba valve le ho laola ts'ebetso ea valve nakong ea ho bolaoa. E lekola boemo ba ts'ebetso ea valve ka li-sensor tse peli tsa boemo, e ahlola hore na valve e sebakeng se bulehileng kapa se koetsoe, e tlaleha palo ea valve ka lenaneo, 'me e na le liphello tse peli tsa 4-20mA tse lumellanang le ho bula valve le tse peli ka tloaelo. mabitso a bulehileng le a tloaelehileng a koetsoeng. Ka lipontšo tsena tsa tlhahiso, ketso ea ho fetola valve e laoloa.

Tsamaiso ea tsamaiso

PLC e sebelisoa haholo tsamaisong ea taolo. Kaha morero ona o hlahisoa ho OMRON PLC, Omron PLC e hlahisoa.

Sebopeho sa lisebelisoa: k'homphieutha e le 1, sete e le 'ngoe ea PLC (ho kenyeletsoa CPU, I / O module, id1, oc212 le ad224 module), li-relay tse 003, li-valve tsa solenoid tse 2 le 2 pneumatic valve actuator.

Mokhoa oa ho lokisa liphoso

Pneumatic valve positioner ke e 'ngoe ea lisebelisoa tsa bohlokoa ka ho fetisisa tsa pneumatic ea valve ea taolo ea moea, e ka amohelang matšoao a taolo le ho beha sekhahla sa valve ka nepo.

Mosebetsi oa sebaka sa "pneumatic valve positioner": "pneumatic valve positioner" le "pneumatic actuator" ka kopanelo li etsa yuniti ea taolo ea othomathiki le li-valve tse fapaneng tsa taolo. Ka mor'a ho romelloa le ho kenngoa, li kopantsoe ho ba valve ea ho laola pneumatic. Li-valve tsa pneumatic li sebelisoa libakeng tse fapaneng tsa liindasteri le ho laola ts'ebetso.

Ha valve ea ho laola moea e tloha fekthering, bobeli ba "positioner" le valve ea ho laola li se li lekanyelitsoe. Leha ho le joalo, ka mor'a hore valve e kenngoe pompong, hangata e hloka ho lekanngoa hape. Mokhoa o tloaelehileng oa calibration ke: lekanya lintlha tse 5, ke hore 4mA, 8Ma, 12mA, 16mA, 20mA. Ho 12mA, molamu oa maikutlo oa sebatli o sebakeng se otlolohileng. Bakeng sa lihlopha tse ling tsa matšoao, boemo ba valve bo lokela ho ba 0, 25%, 75%, le 100% ea stroke, 'me sekhahla sa ho potoloha ha molamu oa maikutlo e lokela ho ba ka tlase ho feta kapa ho fokotsa likhato tse 45. Ho kheloha ha ntlha ea zero le tekanyo e feletseng ho ka lokisoa ka ho lokisa li-screws tse tsamaellanang ka thoko. Tlas'a maemo a tloaelehileng, haeba sekhahla sa valve le letšoao le fanoeng li lumellana le 'ngoe ho ea ho e' ngoe, ho lekanya ho phethoa.

E 'ngoe ea mathata a ka sehloohong ha valve e koetsoe ke mokhoa oa ho finyella mojaro o feletseng oa setulo sa valve ho koala valve ka thata. Mokhoa o tloaelehileng ke oa ho lekanya valve e le hore likarolo tse koalang (tse kang valve plug, diaphragm, valve plate, joalo-joalo) li behiloe feela setulong sa valve, ho e-na le ho tiisa hore na likarolo tse koalang li khahlanong le setulo sa valve ka ho feletseng. E le ho boloka ho dutla ha moralo le ho qoba ho bola ha bokaholimo ba tiiso, ho tlameha ho raloa mojaro o loketseng oa tiiso.

Li-activator tsa pneumatic tse le 'ngoe hangata ke tsa moralo o mosesaane oa filimi. Ka moralo ona, selemo se sebelisoang se ka fokotsa mojaro oa setulo sa valve hape se ka mamella khatello e felletseng ea ho koala. Mochine o sebetsang habeli oa pneumatic actuator o sebelisa moralo oa piston. Ka moralo ona, ho fapana le moralo oa membrane, khatello ea phepelo ha e hloke ho fokotsoa. E le ho finyella khatello e phahameng ea ho koala, khatello e feletseng ea phano ea mojaro e ka sebelisoa. Bakeng sa moralo oa piston, khatello e phahameng, ho ba le botsitso le taolo ea kutlo ea valve e betere.