Ke Eng?Pneumatic Control Valve?

Pneumatic Control Valve ke ho hatella moea e le mohloli oa matla, ho cylinder e le actuator, 'me ka thuso ea positioner, converter, solenoid valves le lisebelisoa tse ling ho khanna valve, ho finyella molao oa ho tima kapa o lekanang, ho fumana taolo. sesupo sa sistimi ea taolo ea boiketsetso ea indasteri ho lokisa phallo, khatello, mocheso le likarolo tse ling tsa ts'ebetso.Pneumatic Control Valve e tšoauoa ka taolo e bonolo, karabelo e potlakileng, 'me ha e le hantle e bolokehile, ha ho na mehato e meng e thibelang ho phatloha.Leha ho le joalo, ts'ebetso ea valve ka linako tse ling e hloleha, ka mor'a moo re tla hlalosa ka ho qaqileng valve e laolang e ka hlaha mefuta ea 5 ea ho hlōleha le phekolo ea eona.

Mofuta oa setulo se le seng, setulo se habeli, mofuta oa sleeve Size Range(Inch) DN20 ho DN200 (3/4″ to 8″) Pressure 16 / 40 / 64 bar (232 / 580 / 928 psi) MochesoMofuta o tloaelehileng: -20 ℃ ho isa ho 200 ℃ (-4°F ho 392°F)Mofuta o tlase oa mocheso:-60℃ ho isa 196℃ (-76°F ho isa 384.8°F)Mofuta oa ho pholisa:-40℃ ho isa 450℃ (-40°F ho isa 842°F) ) Likhetho tsa Khokahano tse Flanged kapa Welded Valve Material WCB, CF8, CF8M, Cast iron Seal Material PTFE Pneumatic Accessories Positioner, FRL, pneumatic solenoid valve and limit switch Litšobotsi tsa phallo Liphesente tse lekanang, linear, tse bulang kapele Mofuta oa Actuator Multi-spring diaphragm Action actuator thaepa Ketso e tobileng, ketso e khutlisang Nako ea selemo 20 ho isa ho 100KPa, 40 ho isa ho 200KPa, 80 ho isa ho 240KPa Khatello ea phepelo 0.4 ~ 0.5MPa Sebaka se feto-fetohang 50: 1 Theko Tobetsa mona ho fumana theko e ntle!

Liphoso tse 5 tse Tloaelehileng tsa Valve ea Taolo ea Moea:

1. The Control Valve ha e sebetse

Ntlha ea pele, netefatsa hore na khatello ea mohloli oa khase e tloaelehile, fumana ho hlōleha ha mohloli oa khase.Haeba khatello ea moea e tloaelehile, etsa qeto ea hore na amplifier ea positioner kapa converter ea moea e hatelitsoeng e na le tlhahiso.

2. Thibelo ea Valve

Maemong a joalo, o ka bula ka potlako, koala Mohala oa bobeli kapa valve ea ho laola, e le hore thepa e utsoitsoeng ho tloha moleng oa bobeli kapa valve ea ho laola e ne e le ea mahareng.Ho phaella moo, u ka boela clamp le bakoang ka liphaephe tongs, ho phaella ho letshwao la kgatello, e ntle le e mpe matla a potolohang kutu, e le hore valve core flash card sebaka.

Haeba e ke ke ea rarolla bothata, e ka eketsa khatello ea mohloli oa khase, e eketsa matla a ho khanna ho ea holimo le ho theoha ka makhetlo a 'maloa, ho ka rarolla bothata.Haeba e ntse e ke ke ea sisinyeha, joale ho hlokahala hore u etse ho laola ts'ebetso ea ho qhaqhoa ha valve, ha e le hantle, mosebetsi ona o hloka tsebo e matla ea setsebi, e tlameha ho etsoa ka thuso ea basebetsi ba litsebi le tsa theknoloji, ho seng joalo liphello tse tebileng haholoanyane.

3. Ho lutla ha valve

Ho lutla ha valve ea ho laola moea hangata ho bakoa ke ho lutla ka hare ho valve ea taolo, ho lutla ha ho paka le ho lutla ha mokokotlo oa valve le setulo sa valve.

3.1 Ho Dutla ka Hare

Mathata a bolelele ba valve stem, kutu ea khase e telele haholo, sebaka se ka holimo (kapa tlase) ha sea lekana, se bakang lekhalo pakeng tsa SPOOL le setulo sa valve, ha se khone ho ikopanya ka botlalo,

3.2 Phakete ea Leakage

E le hore ho etsa stuffing bonolo ho jarisa, chamfer ka holimo a stuffing lebokose le reng, beha tšepe sireletsa reng e nang le lekhalo tse nyenyane khoholeho ea mobu-hanela lekhalo botlaaseng ba stuffing lebokose le reng, hlokomela hore ho kopana holim 'a pakeng tsa lesale sireletsa le stuffing ke ke ba. sefofane se sekametseng.

E le ho thibela ho koaheloa ho tsoa ka har'a khatello e mahareng.Bokaholimo ba lebokose la stuffing le karolo ea ho ikopanya le stuffing e lokela ho phethoa ho ntlafatsa pheletso ea bokaholimo le ho fokotsa ho roala lintho.graphite e feto-fetohang e khethiloe e le filler ka lebaka la ho tiisa moea o motle, matla a fokolang a ho ferekanngoa, phetoho e nyenyane ea tšebeliso ea nako e telele, ho roala ho nyenyane le ho taboha, ho bonolo ho e boloka, 'me ho hanyetsa khatello le ho hanyetsa mocheso ho molemo hobane matla a khohlano ha a etse joalo. phetoho ka mor'a hore boutu ea tšoelesa e tiisetsoe hape e lokolohile ho bola ea mecha ea litaba ea ka hare, 'me kutu le lebokose la stuffing ho kopana ka hare ho tšepe ha ho pitting kapa kutu.

Ka tsela ena, ka katleho sireletsa valve stem packing letter seal, etsa bonnete ba hore ho tšepahala ha tiiso ea ho paka, bophelo ba tšebeletso bo boetse bo ntlafatsoa haholo.

3.3 Kore ea Valve, Ho Lula ha Setulo sa Valve Deformation

Ho khethoa ha lisebelisoa tse thibelang ho bola, ho ba teng ha likoti, trachoma le liphoso tse ling tsa sehlahisoa se lokelang ho felisoa ka tieo.Haeba deformation ea mantlha ea valve le setulo e se ntho e tebileng haholo, sandpaper e ntle e ka sebelisoa ho sila, ho tlosa mesaletsa, ho ntlafatsa ho tiisa ho qetela, ho ntlafatsa ts'ebetso ea ho tiisa.Haeba tšenyo e le mpe, o lokela ho nkela valve e ncha sebaka.

4. Oscillates

Ho thatafala ha selemo sa valve ea ho laola ha hoa lekana, pontšo ea tlhahiso ea valve ea taolo ha e tsitsa 'me e fetoha ka potlako, e leng se bakang habonolo ho laola Valve oscillation.

Kaha lisosa tsa oscillation li fapane, hoa hlokahala ho etsa tlhahlobo e hlakileng ea mathata a itseng.Ka mohlala, valve ea ho lokisa e nang le selemo se seholo se thata se khethiloe, 'me ho sebelisoa mohaho oa ho bolaoa ha piston.

Pipe le setsi li sisinyeha ka matla, 'me ho kena-kenana le ho sisinyeha ho ka felisoa ka ho eketsa tšehetso.Fetola sebopeho se fapaneng sa valve ea ho laola.Ho sebetsa sebakeng se senyenyane se bakoang ke oscillation, ho bakoa ke khetho e sa lokelang, haholo-holo, hobane matla a phallo ea valve C boleng bo boholo haholo, e tlameha ho khethoa hape, khetha matla a phallo ea boleng ba C e nyenyane kapa tšebeliso ea sub- taolo ea marang-rang kapa tšebeliso ea valve ea motsoali ho hlola valve ea taolo e sebetsang sebakeng se senyenyane se bakoang ke ho oscillation.

5. Lerata

5.1 Mokhoa oa ho Felisa Lerata la Resonance

Ke feela ha valve ea taolo e resonance, ho na le superposition ea matla le ho hlahisa li-decibel tse fetang 100 tsa lerata le matla.Tse ling li bontša ho thothomela ho matla, lerata ha le leholo, ho thothomela ho hong hoa fokola, empa lerata le leholo haholo;ho thothomela ho hong le lerata le leholo.Lerata lena le hlahisa molumo oa monotonic ka maqhubu a pakeng tsa 3000 le 7000 Hz.Ho hlakile hore ka ho felisa resonance, lerata le tla fela ka tlhaho.

5.2 Phokotso ea Lerata la Cavitation

Cavitation ke mohloli o ka sehloohong oa lerata la hydrodynamic.Ha cavitation e etsahala, bubble e tla phatloha 'me e hlahise tšusumetso e phahameng ka potlako, e leng se hlahisang moferefere o matla oa sebaka le lerata la cavitation.Lerata le na le mefuta e mengata ea maqhubu 'me le hlahisa molumo oa lerata o tšoanang le o hlahisoang ke mokelikeli o nang le lehlohlojane.Ho felisa le ho fokotsa cavitation ke mokhoa o atlehang oa ho felisa le ho fokotsa lerata.

5.3 Sebelisa Mokhoa o Motenya oa Lerako

Ho sebelisa tube e teteaneng ke e 'ngoe ea mekhoa ea ho sebetsana le lipotoloho tsa molumo.Ho sebelisa lerako le tšesaane ho ka eketsa lerata ka 5 DB, ho sebelisa tube e teteaneng ea lerako ho ka fokotsa lerata ka 0 ~ 20 DB.Ha lerako le le letenya la bophara bo lekanang, bophara bo boholo ba botenya bo tšoanang ba lerako, le ntlafatsa phello ea ho fokotsa lerata.Bakeng sa liphaephe tsa DN200 tse nang le botenya ba lerako la 6.25,6.75,8,10,12.5,15,18,20 le 21.5 mm, lerata le ka fokotsoa ka 3.5, -2 (ke hore e eketsehile), 0,3,6,8, 11,13 le 14.5 DB ka ho latellana.Ha e le hantle, ha lerako le le letenya, litšenyehelo li phahame.

5.4 Sebelisa Mokhoa oa ho Monya Lerata

Hona hape ke mokhoa o tloaelehileng, o sebetsang ka ho fetesisa oa ts'ebetso ea tsela ea molumo.Lintho tse monyang molumo li ka sebelisoa ho koala mohloli oa lerata le phaephe ka mor'a valve.Ke habohlokoa ho bontša hore katleho ea ho fokotsa lerata e khaotsa hohle moo lintho tse monyang molumo li pakiloeng 'me ho sebelisoa li-tubes tse teteaneng, kaha lerata le ka tsamaea sebaka se selelele ka phallo ea mokelikeli.Mokhoa ona o sebetsa moo boemo ba lerata bo seng holimo haholo le bolelele ba liphaephe ha bo bolelele haholo, kaha ke mokhoa o bitsang chelete e ngata.

5.5 Series Silencer Mokhoa

E loketse ho khutsisa lerata la aerodynamic.E ka khona ho felisa lerata ka hare ho mokelikeli le ho hatella boemo ba lerata le fetisetsoang moeling o tiileng oa moeli.Mokhoa ona o sebetsa ka ho fetisisa ebile o na le moruo moo sekhahla sa phallo ea bongata se phahameng kapa tekanyo ea khatello ea khatello pele le ka mor'a hore valve e phahame.Tšebeliso ea li-silencer tsa mofuta oa absorption li ka fokotsa lerata haholo.Leha ho le joalo, menahano ea moruo ka kakaretso e lekanyelitsoe ho fokotseng hoo e ka bang 25 DB.

5.6 Mokhoa oa ho Koalloa

Sebelisa libaka tse koaletsoeng, matlo le meaho ho arola mohloli oa lerata ho tsoa tikolohong e kantle ho meeli e amohelehang.

5.7 Series Throttling

Ha tekanyo ea khatello ea valve ea taolo e phahame (△ P / p 1≥0.8) , mokhoa oa letoto la throttling o sebelisetsoa ho qhalakanya ho theoha ha khatello e feletseng holim'a valve ea taolo le ntho e tsitsitseng ea throttling ka mor'a valve.DIFFUSERS, li-restrictor tsa porous, mohlala, ke mekhoa e sebetsang ka ho fetisisa ea ho fokotsa lerata.E le hore u fumane katleho e ntle ka ho fetisisa ea li-diffuser, sephahla (sebopeho se tiileng le boholo) se tlameha ho etsoa ho latela ho kenngoa ha sengoathoana se seng le se seng, e le hore boemo ba lerata bo hlahisoang ke valve bo tšoane le bo hlahisoang ke diffuser.

5.8 Sebelisa Valofo e Tlaase ea Lerata

Valve e tlaase ea lerata ho ea ka mokelikeli ka spool, setulo sa tsela ea ho phalla (li-channel tse ngata, li-channel tse ngata) butle-butle ho qoba ntlha leha e le efe tseleng ea ho phalla ho hlahisa supersonic.Ho na le mefuta e sa tšoaneng, mefuta e sa tšoaneng ea sebopeho sa li-valve tsa lerata le tlaase (ho na le moralo o khethehileng oa tsamaiso) bakeng sa ho sebelisoa ha u khetha.Ha lerata le se le leholo haholo, khetha valve e tlaase ea lerata, e ka fokotsa lerata 10 ~ 20 DB, ena ke valve e tlaase ka ho fetisisa ea moruo.