Baetsi ba Li-valve tse Laolang

Li-valve tse laolang, tse tsejoang hape e le valve ea taolo, ke karolo ea ho qetela ea taolo ho Li-valve tse Laolang li bua ka li-valve tse etsang phetoho e lekanang ea 4-20ma kapa 0-10V matšoao ho drive ea li-valve, li-valve tsa letsoho li ka ba le sebaka se bulehileng sa tšebetso ea boiketsetso ea indasteri. taolo, e fetolang mekhahlelo ea ts'ebetso joalo ka phallo e mahareng, khatello, mocheso le boemo ba mokelikeli ka ts'ebetso ea matla ka ho amohela tlhahiso ea lets'oao la taolo ka yuniti ea taolo e laolang. Hangata e entsoe ka actuator le valve. Ho ea ka litšoaneleho tsa stroke, valve e laolang e ka aroloa ka sekhahla se otlolohileng le se otlolohileng; Ho ea ka matla a sebelisoang ke actuator, e ka aroloa ka mefuta e meraro: valve ea pneumatic control valve, motlakase oa ho laola motlakase le valve ea hydraulic control valve; Ho ea ka mesebetsi le litšoaneleho tsa eona, e ka aroloa ka litšoaneleho tsa linear, liphesente tse lekanang le litšoaneleho tsa parabolic. Sephahla se laolang se sebetsa moeeng, metsi, mouoane, mecha ea litaba e fapaneng e senyang, seretse, oli le mecha e meng ea litaba. Lebitso la Senyesemane: valve ea taolo, nomoro ea tag hangata e qala ka FV. Sehlopha se tloaelehileng sa valve ea ho laola: valve ea ho laola pneumatic, valve ea ho laola motlakase, valve ea ho laola metsi le li-valve tse ikemetseng.

Taolong e ikemetseng ea limela tsa mehleng ea kajeno tsa lik'hemik'hale, valve e laolang e phetha karolo ea bohlokoa haholo. Tlhahiso ea limela tsena e itšetlehile ka kabo e nepahetseng le taolo ea sebaka se phallang. Litaolo tsena, ebang ke phapanyetsano ea matla, phokotso ea khatello kapa phepelo e bonolo ea lijana, e hloka likarolo tse ling tsa ho qetela tsa taolo hore li phetheloe.
Li-valve tse laolang, tse tsejoang hape e le valve ea taolo, ke karolo ea ho qetela ea taolo ho Li-valve tse Laolang li bua ka li-valve tse etsang phetoho e lekanang ea 4-20ma kapa 0-10V matšoao ho drive ea li-valve, li-valve tsa letsoho li ka ba le sebaka se bulehileng sa tšebetso ea boiketsetso ea indasteri. taolo, e fetolang mekhahlelo ea ts'ebetso joalo ka phallo e mahareng, khatello, mocheso le boemo ba mokelikeli ka ts'ebetso ea matla ka ho amohela tlhahiso ea lets'oao la taolo ka yuniti ea taolo e laolang. Hangata e entsoe ka actuator le valve. Ho latela stRegulating valve, e tsejoang hape e le valve ea taolo, ke karolo ea ho qetela ea taolo ho Li-valve tse Laolang e bua ka li-valve tse etsang phetoho e lekanang ea 4-20ma kapa 0-10V matšoao ho drive ea valve, li-valve tsa letsoho li ka ba le lebala le bulehileng la taolo ea ts'ebetso ea boiketsetso ea indasteri, e fetolang liparamente tsa ts'ebetso joalo ka phallo e mahareng, khatello, mocheso le boemo ba mokelikeli ka ts'ebetso ea matla ka ho amohela tlhahiso ea lets'oao la taolo ka yuniti ea taolo e laolang. Hangata e entsoe ka actuator le valve. Ho ea ka litšoaneleho tsa stroke, valve e laolang e ka aroloa ka sekhahla se otlolohileng le se otlolohileng; Ho ea ka matla a sebelisoang ke actuator, e ka aroloa ka mefuta e meraro: valve ea pneumatic control valve, motlakase oa ho laola motlakase le valve ea hydraulic control valve; Ho ea ka mesebetsi le litšoaneleho tsa eona, e ka aroloa ka litšoaneleho tsa linear, liphesente tse lekanang le litšoaneleho tsa parabolic. Sephahla se laolang se sebetsa moeeng, metsi, mouoane, mecha ea litaba e fapaneng e senyang, seretse, oli le mecha e meng ea litaba. Lebitso la Senyesemane: valve ea taolo, nomoro ea tag hangata e qala ka FV. Sehlopha se tloaelehileng sa valve ea ho laola: valve ea pneumatic control valve, motlakase oa ho laola motlakase, valve ea hydraulic control valve le litšobotsi tse ikemetseng tsa ho laola valve.roke, valve e laolang e ka aroloa ka leqeba le otlolohileng le leqeba la angular; Ho ea ka matla a sebelisoang ke actuator, e ka aroloa ka mefuta e meraro: valve ea pneumatic control valve, motlakase oa ho laola motlakase le valve ea hydraulic control valve; Ho ea ka mesebetsi le litšoaneleho tsa eona, e ka aroloa ka litšoaneleho tsa linear, liphesente tse lekanang le litšoaneleho tsa parabolic. Sephahla se laolang se sebetsa moeeng, metsi, mouoane, mecha ea litaba e fapaneng e senyang, seretse, oli le mecha e meng ea litaba. Lebitso la Senyesemane: valve ea taolo, nomoro ea tag hangata e qala ka FV. Sehlopha se tloaelehileng sa valve ea ho laola: valve ea ho laola pneumatic, valve ea ho laola motlakase, valve ea ho laola metsi le li-valve tse ikemetseng.
Valve e laolang e sebetsa e le ho hanyetsa ho feto-fetohang ha phaephe. E fetola moferefere oa mokelikeli oa ts'ebetso kapa e fana ka ho theoha ha khatello tabeng ea phallo ea laminar, e bakoang ke ho fetola khanyetso kapa "khohlano" ea valve. Mokhoa ona oa ho fokotsa khatello hangata o bitsoa "throttling". Bakeng sa khase, e haufi le boemo ba isothermal adiabatic, 'me ho kheloha ho itšetlehile ka tekanyo e sa lokelang ea khase (Joule Thomson effect). Ha e le mokelikeli, khatello e sebelisoa ke ho phalla ho hoholo kapa ho khohlakana ha viscous, tseo ka bobeli li fetolang khatello hore e be mocheso, e leng se bakang keketseho e nyenyane ea mocheso.

Loop e tloaelehileng ea taolo e kenyelletsa likarolo tse tharo tse kholo. Karolo ea pele ke ntho e bonolo, eo hangata e leng transmitter. Ke sesebelisoa se ka sebelisoang ho lekanya mekhoa e laoloang ea ts'ebetso, joalo ka khatello, boemo ba mokelikeli kapa mocheso. Sehlahisoa sa transmitter se romelloa ho molaoli, ea etsang qeto le ho lekanya ho kheloha pakeng tsa boleng bo fanoeng kapa boleng bo lebeletsoeng le boleng ba sebele ba parameter ea ts'ebetso, 'me e romela pontšo ea tokiso ka bonngoe ho ea ho karolo ea ho qetela ea taolo - molaoli. Valve e fetola phallo ea mokelikeli mme e etsa hore mekhahlelo ea ts'ebetso e fihle ho boleng bo lebelletsoeng.

Valve e laolang ke ea letoto la li-valve tsa taolo, 'me mosebetsi oa eona o ka sehloohong ke ho laola khatello, phallo, mocheso le likarolo tse ling tsa mahareng. Ke karolo ea ho qetela ea taolo ho loop ea ts'ebetso.
Mofuta oa 'mele oa valve

Ho na le mefuta e mengata ea 'mele ea li-valve bakeng sa ho laola li-valve. Li-valve tse sebelisoang hangata li kenyelletsa setulo se le seng se otlolohileng, setulo se otlolohileng habeli, angle, diaphragm, phallo e nyane, litsela tse tharo, eccentric rotation, butterfly, sleeve, spherical, joalo-joalo.

Ka khetho e khethehileng, lintlha tse latelang li ka nahanoa:

(1) Sebopeho le sebopeho sa mantlha sa valve

E nkoa haholo-holo ho ea ka litšobotsi tse khethiloeng tsa phallo, matla a sa leka-lekaneng le lintlha tse ling.

(2) Apara khanyetso

Ha motsoako oa mokelikeli e le ho emisoa ho nang le likarolo tse ngata tsa abrasive, thepa ea ka hare ea valve e lokela ho ba thata.

(3) Ho hanyetsa kutu

Kaha sehare se senya, valve e nang le sebopeho se bonolo e tla khethoa ka hohle kamoo ho ka khonehang.

(4) Mocheso le khatello ea seaplane

Ha mocheso le khatello ea seaplane li phahame 'me phetoho e le khōlō, valve e nang le mocheso o monyenyane le phetoho ea khatello holim'a thepa ea setsi sa valve le setulo sa valve se tla khethoa. Ha mocheso o le ≥ 250 ℃, radiator e tla eketsoa.

(5) Thibela flash le cavitation

Flash le cavitation li etsahala feela mecheng ea litaba ea metsi. Ts'ebetsong ea sebele ea tlhahiso, khanya le cavitation li tla baka ho thothomela le lerata, tse tla khutsufatsa bophelo ba tšebeletso ea valve. Ka hona, khanya le cavitation ea valve e tla thibeloa ha u khetha valve.
Sesebelisoa sa valve sa taolo

E le ho etsa hore valve e laolang e sebetse ka mokhoa o tloaelehileng, actuator e tsamaellanang e tla khona ho hlahisa matla a lekaneng a phallo ho netefatsa ho koala ho phahameng le ho buleha ha valve.

Bakeng sa li-actuator tsa pneumatic, hydraulic le motlakase tse sebetsang habeli, hangata ha ho na selemo se khutlang. Boholo ba matla ha bo amane letho le tsela eo a mathang ka eona. Ka hona, senotlolo sa ho khetha actuator ke ho fumana matla a phahameng a tlhahiso le torque e potolohang ea enjene. Bakeng sa li-actuator tsa pneumatic tse le 'ngoe, matla a phallo a amana le ho buloa ha valve,' me matla a valve ea taolo a tla ama litšobotsi tsa motsamao. Ka hona, hoa hlokahala ho theha tekanyo ea matla karolong eohle ea ho bula ea valve ea taolo.

Kamora hore matla a tlhahiso ea actuator a khethoe, actuator e tsamaellanang e tla khethoa ho latela litlhoko tsa tikoloho ea ts'ebeliso ea ts'ebetso. Ha litlhoko tsa bopaki ba ho phatloha li hlokahala sebakeng sa marang-rang, ho tla khethoa li-actuator tsa pneumatic. Ho latela pono ea ho boloka matla, li-activators tsa motlakase li tla khethoa ka hohle kamoo ho ka khonehang. Haeba ho nepahala ha phetoho ho phahame, ho ka khethoa mochine oa hydraulic actuator. Joalo ka taolo ea lebelo ea mochini o pepeneneng setsing sa motlakase, taolo ea mocheso le taolo ea sesebelisoa sa catalytic mochini o hloekisang oli, jj.

Mokhoa oa ts'ebetso oa valve ea ho laola o fumaneha feela ha mochine oa pneumatic o khethiloe. Mokhoa oa eona oa ts'ebetso o thehoa ka ho kopanya liketso tse ntle le tse mpe tsa actuator le valve. Ho na le mefuta e mene ea motsoako, ke hore positive (mofuta oa ho koala khase), positive and negative (mofuta oa ho bula khase), reverse (mofuta oa ho bula khase) le negative (mofuta oa ho koala khase). Valve e laolang e entsoeng ke metsoako ena e mene e na le mekhoa e 'meli ea ts'ebetso: ho bula khase le ho koala khase.

Khetho ea mokhoa oa ketso oa valve e laolang e nkoa haholo-holo ho tloha likarolong tse tharo: A. ts'ireletso ea tlhahiso ea ts'ebetso; b. Litšobotsi tsa seaplane; c. Netefatsa boleng ba sehlahisoa le ho fokotsa tahlehelo ea moruo.

Valve e laolang e ka aroloa ka stroke e otlolohileng le stroke ea angular ho latela litšobotsi tsa stroke. Stroke e otlolohileng e kenyelletsa: valve ea setulo se le seng, valve ea setulo se habeli, valve ea letsoho, valve ea cage, valve ea angle, valve ea litsela tse tharo le diaphragm; Angular stroke e kenyelletsa: belofo ea serurubele, belofo ea bolo, valafo ea eccentric rotary le valve e sebetsang ka botlalo e laolang khanya ea khanya.

Valve ea taolo e ka aroloa ka valve ea taolo ea letsoho, valve ea taolo ea pneumatic, valve ea taolo ea motlakase le hydraulic control valve ho latela mokhoa oa ho khanna, ke hore, valve ea taolo ea pneumatic e nang le moea o hatelitsoeng joalo ka mohloli oa matla, valve ea taolo ea motlakase e nang le motlakase joalo ka. mohloli oa matla, le valve ea ho laola hydraulic e nang le mokelikeli oa metsi (joaloka oli) khatello e le matla;

Ho ea ka foromo ea taolo, e ka aroloa ka mofuta oa taolo, mofuta oa ho khaola le mofuta oa taolo ea taolo;

Ho ea ka litšobotsi tsa phallo, e ka aroloa ka linear, logarithmic (peresente), parabolic le ho bula ka potlako.

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