Isixhobo soMbane seValvesisixhobo sokuqhuba esiyimfuneko ukuqonda ulawulo lwenkqubo yevalvu, ulawulo oluzenzekelayo nolawulo olukude.Inkqubo yayo yokunyakaza inokulawulwa ngokubetha, i-torque okanye i-axial thrust.Ngenxa yokuba iimpawu zokusebenza kunye nokusetyenziswa kwevalve yesixhobo sombane kuxhomekeke kuhlobo lwesivalo, iinkcukacha zesixhobo kunye nevalve kumbhobho okanye indawo yesixhobo.

1. Khetha i-Actuator yoMbane ngokoHlobo lweValve

1.1 I-Angle Stroke I-actuator yombane (i-Angle<360 °) ifanelekile kwi-valve ye-butterfly, i-valve yebhola, i-valve yeplagi, njl.
Ukujikeleza kweshaft ye-actuator yombane ngaphantsi kweveki, engaphantsi kwe-360 °, ngokuqhelekileyo i-90 ° ukuphumeza ukuvulwa kwevalve kunye nokulawula inkqubo yokuvala.Olu hlobo lwe-actuator yombane ngokufakela ujongano olwahlukileyo lwahlulwe lwaba ludidi oludityanisiweyo ngokuthe ngqo, uhlobo lwe-crank yesiseko ezimbini.

A) Uqhagamshelo oluthe ngqo: lubhekisa kwishafti yokuphuma kombane eqhagamshelwe ngokuthe ngqo kwisikhondo sevalvu ngendlela yofakelo.

B) Uhlobo lwe-Base crank: ibhekisa kwi-shaft ephumayo nge-crank kunye ne-stem yoqhagamshelo lwesiqu.

1.2 Ii-actuator zombane ezininzi ezijikisayo (i-Angle>360°) yeevalvu zesango, iivalvu zeglowubhu, njl. njl. ukuvulwa kwevalve kunye nolawulo lwenkqubo yokuvala.

1.3 I-stroke echanekileyo (intshukumo echanekileyo) ifanelekile kwi-valve yokulawula isihlalo esisodwa, i-valve yokulawula isihlalo esiphindwe kabini, njl.Intshukumo yeshaft ephumayo ye actuator yombane inomgca, ayijikelezi.

2. Qinisekisa indlela yokulawula i-actuator yombane ngokweemfuno zolawulo lwenkqubo yokuvelisa

2.1 Uhlobo lokutshintsha (ulawulo oluvulekileyo lwe-loop) ii-activator zombane zohlobo lokutshintsha ngokubanzi zibonelela ngolawulo oluvulekileyo okanye oluvaliweyo lwevalve, nokuba ikwindawo evuleke ngokupheleleyo okanye ivalwe ngokupheleleyo, ezo valivi azifuni lawulo oluchanekileyo lokuhamba kwemidiya.Kubaluleke kakhulu ukukhankanya ukuba i-actuator yombane yohlobo lokutshintsha lunokwahlulwa lube ngamacandelo amabini kunye nesakhiwo esidibeneyo ngenxa yeefom ezahlukeneyo zesakhiwo.Ukhetho lodidi kufuneka lwenziwe kule nto, okanye iyenzeka rhoqo kwintsimi yofakelo kunye nongquzulwano lwenkqubo yolawulo kunye nezinye izinto ezingahambelaniyo.

A) Isakhiwo sokwahlula (esidume ngokuba luhlobo oluqhelekileyo): Iyunithi yokulawula ihlukaniswe kwi-actuator yombane.I-actuator yombane ayikwazi ukulawula i-valve ngokwayo, kodwa kufuneka ilawulwe yiyunithi yokulawula eyongezelelweyo.Ukungalungi kwesi sakhiwo kukuba akulula ukufaka inkqubo yonke, ukwandisa i-wiring kunye neendleko zokufakela, kwaye kulula ukubonakala ngathi iphosakele, xa impazamo isenzeka, ayilungele ukuxilonga kunye nokugcina, umlinganiso wexabiso lokusebenza. ayilunganga.

B) Isakhiwo esidibeneyo (esiqhelekileyo sibizwa ngokuba yi-Monolithic) : Iyunithi yokulawula ihlanganiswe kunye ne-actuator yombane kwaye inokusebenza kwindawo ngaphandle kweyunithi yokulawula yangaphandle, kwaye ingaqhutyelwa kude kuphela ngokukhupha ulwazi olufanelekileyo lokulawula.Inzuzo yesi sakhiwo kukuququzelela ukufakwa kwenkqubo ngokubanzi, ukunciphisa i-wiring kunye neendleko zokufakela, ukuxilongwa lula kunye nokuxazulula iingxaki.Kodwa imveliso yolwakhiwo oludityanisiweyo yemveli ineendawo ezininzi ezingafezekanga, ke ngoko ivelise i-activator yombane ekrelekrele.

2.2 Ukulungelelaniswa (ulawulo oluvaliweyo oluvaliweyo) i-actuator yombane eguquguqukayo ayinayo kuphela umsebenzi wesakhiwo esidibeneyo sokutshintsha, kodwa inokulawula ngokuchanekileyo i-valve kunye nokulungelelanisa ukuhamba okuphakathi.
A) Uhlobo lophawu lolawulo (olukhoyo, amandla ombane) umqondiso wolawulo lwe-actuator yombane elawulwayo ngokubanzi inomqondiso wangoku (4 ~ 20MA, 0 ~ 10MA) okanye umqondiso wombane (0 ~ 5V, 1 ~ 5V).

B) Uhlobo lomsebenzi (uhlobo oluvulekileyo lombane, uhlobo oluvaliweyo lombane) uhlobo lolawulo lwemowudi yokusebenza yombane luhlobo oluvulekileyo lombane ngokubanzi (ulawulo lwe-4 ~ 20MA umzekelo, uhlobo oluvulekileyo lombane luphawu lwe-4MA oluhambelana nevalve evaliweyo, i-20MA ehambelana ivalve evulekileyo), olunye uhlobo luhlobo oluvaliweyo lombane (ulawulo lwe-4-20MA umzekelo, uhlobo oluvulekileyo lombane luphawu lwe-4MA oluhambelana nevalve evulekileyo, i-20MA ehambelana nevalve evaliweyo).

C) Ukulahlekelwa kokukhusela umqondiso kuthetha ukuba i-actuator yombane ivula kwaye ivale i-valve yokulawula kwixabiso elimiselweyo lokukhusela xa umqondiso wokulawula ulahlekile ngenxa yephutha lesiphaluka, njl.

3. Qinisekisa i-torque ephumayo ye-actuator yombane ngokwetorque efunekayo ukuvula nokuvala ivalve.I-torque efunekayo ukuvula nokuvala ivalve imisela ukuba ingakanani i-torque ye-actuator ekhethwa yi-actuator yombane, edla ngokunikezelwa ngumsebenzisi okanye ikhethwe ngumvelisi wevalvu Njengoko umenzi we-actuator enoxanduva kuphela kwi-torque yemveliso ye-actuator, i-torque efunekayo. ukuvulwa okuqhelekileyo kunye nokuvalwa kwevalve kumiselwa yimiba efana nobukhulu bevalve orifice, uxinzelelo olusebenzayo, njl. umenzi wevalve efanayo wolubalo olufanayo Xa ukhetho lwe-actuator iTorque luncinci kakhulu luya kubangela ivalve yesiqhelo yokuvula kunye nokuvala, ngoko ke i-actuator yombane kufuneka ikhethe uluhlu olufanelekileyo lwetorque.

4. Ngokokusetyenziswa kokusingqongileyo kunye nokuhlelwa kobungqina bokuqhuma kwebakala lezixhobo zombane ngokusetyenziswa kwendawo engqongileyo kunye neemfuno zebakala lokuqhuma, izixhobo zombane zinokwahlulwa zibe luhlobo oluqhelekileyo, uhlobo lwangaphandle, uhlobo lwe-flameproof, uhlobo lwangaphandle lwe-flameproof. kwaye nangokunjalo.

5. Isiseko sokukhetha isiXhobo soMbane seValve ngokuchanekileyo:

5.1 I-Torque yokuSebenza: i-torque yokusebenza yeyona parameter ibaluleke kakhulu yokukhetha isixhobo sombane sevalve, i-torque yesixhobo sombane kufuneka ibe yi-1.2 ~ 1.5 amaxesha owona msebenzi uphezulu weTorque yevalve.

5.2 I-Operating Thrust: Zimbini iindidi eziphambili zevalve actuator: enye yeyokukhupha itorque ngokuthe ngqo ngaphandle kwepleyiti yethrust, kwaye enye kukuba ne-thrust plate enetorque ephumayo eguqulelwe kwi-output thrust yi-stem nut kwi-thrust plate.

5.3 Inani le-valve ye-Output Shaft yokuJikela: i-valve yombane yesixhobo sokujikeleza ishafti inombolo yenani lokujika kunye nedayamitha ye-valve ye-valve, i-valve stem pitch, inani lemisonto, ukubala ngokwemiqathango ye-m = H / Zs (m lilonke inani ujika ukuba isixhobo sombane kufuneka sanelise, h bubude bokuvula ivalve, s yi-stem drive thread thread, Z yintloko yentambo yesikhondo) .

5.4 I-Stem Diameter: I-valve ye-stem ye-multi-turn ayikwazi ukuhlanganiswa ukuba ubuninzi be-stem diameter evunyelwe sisixhobo sombane ayikwazi ukudlula kwi-stem yevalve ebonelelweyo.Ngoko ke, isixhobo sombane esinomngxuma weshaft ububanzi kufuneka sibe sikhulu kunesiqu sesiqu sesiqu sedayamitha yevalve yesikhondo.Kwezinye iivalve ezijikelezayo kunye ne-valve ye-valve ye-valve engabuyiyo, nangona ungajongi ububanzi be-stem ngengxaki, kodwa ekukhetheni kufuneka kuqwalaselwe ngokupheleleyo ububanzi besiqu kunye nobukhulu be-keyway, ukuze indibano isebenze ngokufanelekileyo.

5.5 Isantya sokuPhuma: Isantya sokuvula ivalve kunye nokuvala ukuba sikhawuleza kakhulu, kulula ukuvelisa isenzeko sehamile samanzi.Ngoko ke, kufuneka kusekelwe kwiimeko ezahlukeneyo zokusetyenziswa, ukukhethwa kokuvula okufanelekileyo kunye nesantya sokuvala.