Yintoni iIvalufa yokulawula umoya?

IValve yoLawulo lwe-Pneumatic kukuxininisa umoya njengomthombo wamandla, kwi-cylinder njenge-actuator, kwaye ngoncedo lwe-positioner, i-converter, i-solenoid valves kunye nezinye izincedisi ukuqhuba i-valve, ukufezekisa ummiselo wokuvala okanye ukulinganisa, ukufumana ulawulo. Umqondiso wenkqubo yokulawula i-industrial automation ukulungelelanisa ukuhamba, uxinzelelo, ubushushu kunye nezinye iiparameters zenkqubo.I-Pneumatic Control Valve ibonakaliswe ngolawulo olulula, ukuphendula ngokukhawuleza, kwaye ngokuqinisekileyo ikhuselekile, akukho manyathelo ongezelelweyo obungqina bokuqhuma.Nangona kunjalo, ukusebenza kwevalve ngamanye amaxesha kuyasilela, ngokulandelayo siza kuchaza ngokweenkcukacha ivalve yokulawula inokuvela iintlobo ezi-5 zokusilela kunye nonyango lwayo.

Uhlobo lwesitulo esinye, isitulo esiphindwe kabini, uhlobo lomkhono weSize Range(Intshi) DN20 ukuya kwi-DN200 (3/4″ ukuya ku-8″) Uxinzelelo lwe-16 / 40 / 64 bar (232 / 580 / 928 psi) UbushushuUhlobo oluqhelekileyo: -20℃ ukuya kuma-200 ℃ (-4°F ukuya 392°F)Uhlobo lobushushu obuphantsi:-60℃ ukuya ku-196℃ (-76°F ukuya ku-384.8°F)Uhlobo lokupholisa:-40℃ ukuya ku-450℃ (-40°F ukuya ku-842°F) )Ukhetho loQhagamshelwano oluFlentshiweyo okanye oludityanisiweyo lweValve Material WCB, CF8, CF8M, intsimbi yokuCasa iSitywina Material PTFE Pneumatic Accessories Positioner, FRL, ivelufa ye-solenoid yomoya kunye nomda wokutshintsha Iimpawu zokuhamba ezihambayo Iipesenti ezilinganayo, umgca, ukuvulwa ngokukhawuleza Uhlobo lwe-Actuator Multi-spring diaphragm Actuator Actuator uhlobo Isenzo ngokuthe ngqo, inyathelo elibuyisela umva Uluhlu lwe-Spring 20 to100KPa, 40 ukuya ku-200KPa, 80 ukuya ku-240KPa Uxinzelelo lonikezelo 0.4 ~ 0.5MPa Uluhlu olulungiswayo 50: 1 Ixabiso Cofa apha ukuze ufumane ixabiso elingcono!

Iimpazamo ezi-5 eziqhelekileyo zeValve yoLawulo lwe-Peneumatic:

1. IValve yoLawulo ayisebenzi

Okokuqala qinisekisa ukuba ngaba uxinzelelo lwegesi luqhelekile, fumana ukusilela komthombo werhasi.Ukuba uxinzelelo lomoya luqhelekile, misela ukuba i-amplifier ye-positioner okanye i-converter yomoya ocinezelweyo inesiphumo.

2. Ukuvala iValve

Kwiimeko ezinjalo, unokuvula ngokukhawuleza, uvale umgca wesibini okanye ivalve yokulawula, ukwenzela ukuba iimpahla ezibiweyo ukusuka kumgca wesibini okanye ivalve yokulawula yayiphakathi.Ukongeza, ungaphinda ubambe isikhondo ngeetoni zemibhobho, ukongeza kuxinzelelo lophawu, isiqu esijikelezayo esilungileyo nesingalunganga, ukuze indawo yekhadi levalve engundoqo.

Ukuba ayikwazi ukusombulula ingxaki, inokunyusa uxinzelelo lomthombo wegesi, yandise amandla okuqhuba ukunyuka nokuhla ngokuphindaphindiweyo amaxesha amaninzi, inokusombulula ingxaki.Ukuba nangoku akakwazi ukuhambisa, ngoko kufuneka wenze ukulawula ivalve disassembly processing, kakade, lo msebenzi ufuna izakhono zobungcali obuqinileyo, kufuneka wenziwe ngoncedo lwabasebenzi abaqeqeshiweyo kunye nobugcisa, kungenjalo iziphumo ezibi kakhulu.

3. Ukuvuza kwevalvu

Ukuvuza kwevalve yokulawula umoya ngokuqhelekileyo kubangelwa ukuvuza kwangaphakathi kwevalve yokulawula, ukuvuza kokupakisha kunye nokuvuza kwe-valve core kunye nesihlalo sevalve.

3.1 Ukuvuza kwaNgaphakathi

I-valve stem ubude bokungakhululeki, i-valve ye-valve ide kakhulu, i-stem up (okanye ezantsi) umgama awonelanga, okukhokelela kumsantsa phakathi kwe-SPOOL kunye nesihlalo sevalve, ayikwazi ukudibanisa ngokupheleleyo,

3.2 UkuPakisha ukuvuza

Ukuze wenze ukugxusha lula ukulayisha, chamfer phezulu kwibhokisi yokuhlohla, wabeka intsimbi yokukhusela umsesane kunye umsantsa encinane ukhukuliseko-resiste emazantsi ibhokisi ukugxusha, qaphela ukuba umphezulu zoqhagamshelwano phakathi umsesane wokukhusela kunye nokugxumeka ayikwazi inqwelomoya etyekeleyo.

Ukuze kuthintelwe ukugxunyekwa kukutyhalelwa ngaphandle ngoxinzelelo oluphakathi.Umphezulu webhokisi yokugxumeka kunye nenxalenye yokudibanisa yokudibanisa kufuneka igqitywe ukuphucula ukugqitywa komphezulu kunye nokunciphisa ukugqoka.I-graphite eguquguqukayo ikhethwa njenge-filler ngenxa yokuqina kwayo okuhle komoya, amandla amancinci okukhuhlana, utshintsho oluncinci ekusebenziseni ixesha elide, ukunxiba okuncinci kunye nokukrazula, kulula ukuyigcina, kunye nokumelana noxinzelelo kunye nokumelana nobushushu kulungile kuba amandla okubetha akwenzi. utshintsho emva kokuba ibhawudi yedlala iqinisiwe kwakhona simahla kwi-corrosion yemidiya yangaphakathi, kunye nesiqu kunye nebhokisi yokufaka uqhagamshelwano lwangaphakathi lwesinyithi aluyi kugoba okanye ukubola.

Ngale ndlela, ukukhusela ngokufanelekileyo i-valve stem packing letter seal, uqinisekise ukuthembeka kokupakisha uphawu, ubomi benkonzo buphuculwe kakhulu.

3.3 I-Valve Core, i-Valve Seat Deformation Ukuvuza

Ukukhethwa kwezinto ezichasene ne-corrosion, ubukho be-pitting, i-trachoma kunye nezinye iziphene zemveliso kufuneka zipheliswe ngokuqinisekileyo.Ukuba i-deformation ye-valve core kunye nesihlalo ayinzima kakhulu, i-sandpaper ecocekileyo ingasetyenziselwa ukugaya, ukuphelisa umkhondo, ukuphucula ukugqitywa kokutywinwa, ukuphucula ukusebenza kokutywinwa.Ukuba umonakalo unzima, kufuneka ubuyisele ivalve entsha.

4. Ii-oscillates

Ukuqina kwentwasahlobo yevalve yokulawula akwanelanga, umqondiso wokuphuma kwevalve yokulawula ayizinzile kwaye utshintsha ngokukhawuleza, okwenza kube lula ukuba i-oscillation yokulawula iValve.

Njengoko izizathu ze-oscillation zihlukeneyo, kuyimfuneko ukwenza uhlalutyo oluchanekileyo lweengxaki ezithile.Ngokomzekelo, i-valve yokulungisa ene-rigidity spring spring ikhethwa, kwaye i-piston execution structure isetyenziswe endaweni.

Umbhobho kunye nesiseko zixubha ngamandla, kwaye ukuphazamiseka kwe-vibration kunokupheliswa ngokunyusa inkxaso.Ukutshintsha isakhiwo esahlukileyo se-valve yokulawula.Ukusebenza kwindawo encinci yokuvula okubangelwa yi-oscillation, kubangelwa ukukhetha okungafanelekanga, ngokukodwa, ngenxa yokuba i-valve flow flow capacity C ixabiso likhulu kakhulu, kufuneka liphinde likhethwe, khetha umthamo wokuhamba kwexabiso le-C lincinci okanye ukusetyenziswa kwe-sub- ulawulo loluhlu okanye ukusetyenziswa kwevalve yomzali ukoyisa ivalve yokulawula esebenza kwindawo encinci yokuvula okubangelwa yi-oscillation.

5. Ingxolo

5.1 Indlela yokuphelisa ingxolo

Kuphela xa i-valve yokulawula i-resonance, kukho i-energy superposition kwaye ivelise ngaphezu kwe-decibels ze-100 zengxolo enamandla.Ezinye zibonisa ukungcangcazela okunamandla, ingxolo ayikho nkulu, enye intshukumo ibuthathaka, kodwa ingxolo inkulu kakhulu;okunye ukungcangcazela kunye nengxolo inkulu.Le ngxolo ivelisa isandi se-monotonic kwi-frequency ephakathi kwe-3000 kunye ne-7000 Hz.Ngokucacileyo, ngokuphelisa i-resonance, ingxolo iya kunyamalala ngokwendalo.

5.2 Ukunciphisa ingxolo yeCavitation

I-Cavitation ngowona mthombo wengxolo ye-hydrodynamic.Xa i-cavitation isenzeka, i-bubble iya kugqabhuka kwaye ivelise impembelelo yesantya esiphezulu, okubangela ukuba i-turbulence yendawo kunye nesandi se-cavitation.Ingxolo inoluhlu olubanzi lwamaza kwaye ivelisa isandi selatisi esifana neso siveliswe lulwelo olunegrabile.Ukuphelisa kunye nokunciphisa i-cavitation yindlela efanelekileyo yokuphelisa nokunciphisa ingxolo.

5.3 Sebenzisa iNdlela yoDonga oluNinzi

Ukusebenzisa ityhubhu enodonga olungqingqwa yenye yeendlela zokujongana neesekethe zesandi.Ukusebenzisa udonga olucekethekileyo kunokunyusa ingxolo nge-5 DB, usebenzisa ityhubhu yodonga olungqingqwa kunokunciphisa ingxolo nge-0 ~ 20 DB.Okukhona udonga olutyebileyo olunobubanzi obufanayo, ubukhulu bobukhulu bodonga olufanayo, kokukhona isiphumo sokunciphisa ingxolo singcono.Kwimibhobho ye-DN200 enobunzima bodonga lwe-6.25,6.75,8,10,12.5,15,18,20 kunye ne-21.5 mm, ingxolo inokuncitshiswa ngu-3.5,-2 (oko kukuthi yanda), 0,3,6,8, 11, 13 kunye ne-14.5 DB ngokulandelelanayo.Ewe, okukhona udonga lutyebile, kokukhona ixabiso liphezulu.

5.4 Sebenzisa iNdlela yeMathiriyeli yokufunxa isandi

Oku kukwayinto eqhelekileyo, eyona ndlela isebenzayo yokusetyenzwa kwendlela yesandi.Izinto ezifunxa isandi zingasetyenziselwa ukuvala umthombo wengxolo kunye nombhobho emva kwevalve.Kubalulekile ukuphawula ukuba ukusebenza kokuthomalalisa ingxolo kuyeka naphi na apho imathiriyeli efunxa isandi ipakishwe kwaye kusetyenziswa iityhubhu ezishinyeneyo, njengoko ingxolo inokuhamba imigama emide ngokuqukuqela kwamanzi.Le ndlela iyasebenza apho umgangatho wengxolo ungekho phezulu kakhulu kwaye ubude bombhobho abukho mde kakhulu, kuba yindlela ebiza kakhulu.

5.5 Uthotho lweNdlela yesithulisi

Ifanelekile ukuthuliswa kwengxolo ye-aerodynamic.Inokuphelisa ngokufanelekileyo ingxolo ngaphakathi kulwelo kwaye icinezele inqanaba lengxolo elidluliselwe kumda oqinileyo.Le ndlela iyona nto isebenzayo kwaye inoqoqosho apho izinga lokuhamba kobuninzi liphezulu okanye umlinganiselo woxinzelelo loxinzelelo ngaphambi nangemva kokuba i-valve iphezulu.Ukusetyenziswa kohlobo lokufunxa izithulisi zothotho kunokunciphisa kakhulu ingxolo.Iingqwalaselo zoqoqosho, nangona kunjalo, zithintelwe ngokubanzi ekuthotyweni malunga ne-25 DB.

5.6 Indlela Yokuvala

Sebenzisa iindawo ezivaliweyo, izindlu kunye nezakhiwo ukwahlula umthombo wengxolo evela ngaphandle kokusingqongileyo ukuya kwimida eyamkelekileyo.

5.7 Series Throttling

Xa umlinganiselo woxinzelelo lwevalve yokulawula uphezulu (△ P / p 1≥0.8), indlela yochungechunge lwe-throttling isetyenziselwa ukusabalalisa ukuhla koxinzelelo olupheleleyo kwi-valve yokulawula kunye ne-fixed throttling element emva kwevalve.I-DIFFUSERS, ii-porous restrictors, umzekelo, zezona ndlela zisebenzayo zokunciphisa ingxolo.Ukuze ufumane eyona nto isebenzayo ye-diffuser, i-diffuser (imilo eqinile kunye nobukhulu) kufuneka yenziwe ngokufakela isiqwenga ngasinye, ukwenzela ukuba inqanaba lengxolo elenziwe yivalve lifane nelo liveliswa yi-diffuser.

5.8 Sebenzisa iValve yengxolo ePhantsi

Ivalve yengxolo ephantsi ngokwe-fluid ngokusebenzisa i-spool, isihlalo se-tortuous flow path (i-multi-channel, i-multi-channel) icotha ngokuthe ngcembe ukunqanda nayiphi na indawo kwindlela yokuhamba ukuvelisa i-supersonic.Kukho iifom ezahlukeneyo, iintlobo ezahlukeneyo zesakhiwo se-valve yesandi esiphantsi (kukho inkqubo ekhethekileyo yoyilo) yokusetyenziswa xa ukhetha.Xa ingxolo ingekho nkulu kakhulu, khetha ivalve yengxolo yengxolo ephantsi, inokunciphisa ingxolo 10 ~ 20 DB, le yeyona valve yengxolo ephantsi yoqoqosho.