Kubunjineli bombhobho, ukhetho oluchanekileyo lwee-valve zombane lungenye yeemeko zokuqinisekisa ukuhlangabezana neemfuno zokusetyenziswa. Ukuba i-valve yombane esetyenzisiweyo ayikhethwanga ngokufanelekileyo, ayiyi kuchaphazela kuphela ukusetyenziswa, kodwa iphinde izise imiphumo emibi okanye ilahleko enkulu, ngoko ke, ukhetho oluchanekileyo lwee-valve zombane kuyilo lobunjineli bombhobho.
Indawo yokusebenza yevalve yombane
Ukongeza kokunikela ingqalelo kwiiparamitha zepayipi, ingqalelo ekhethekileyo kufuneka ihlawulwe kwiimeko zokusingqongileyo zokusebenza kwayo, kuba isixhobo sombane kwi-valve yombane sisixhobo se-electromechanical, kwaye imeko yayo yokusebenza ichaphazeleka kakhulu kwindawo yayo yokusebenza. Ngokuqhelekileyo, indawo yokusebenza yevalve yombane ihamba ngolu hlobo lulandelayo:
1. Ufakelo lwangaphakathi okanye ukusetyenziswa kwangaphandle ngamanyathelo okukhusela;
2. Ukufakwa kwangaphandle kwindawo evulekileyo, kunye nomoya, isanti, imvula kunye namazolo, ukukhanya kwelanga kunye nokunye ukuguguleka;
3. Inerhasi enokutsha okanye eqhumayo okanye indawo enothuli;
4. Ubume betropikhi efumileyo, neyomileyo;
5. Ubushushu bombhobho buphezulu ukuya kuma-480 ° C okanye ngaphezulu;
6. Ubushushu be-ambient bungaphantsi kwe-20 ° C;
7. Kulula ukukhukuliseka okanye ukuntywiliselwa emanzini;
8. Iindawo ezisingqongileyo ezinezixhobo ze-radioactive (izixhobo zamandla enyukliya kunye nezixhobo zovavanyo lwe-radioactive material);
9. Ubume benqanawa okanye idokhi (ngetyuwa yokutshiza, ukungunda, kunye nokufuma);
10. Amathuba aneentshukumo ezinzima;
11. Amathuba anomlilo;
Kwimibhobho yombane kwiindawo ezikhankanywe ngasentla, isakhiwo, izinto eziphathekayo kunye nemilinganiselo yokukhusela izixhobo zombane zihluke. Ke ngoko, isixhobo sombane sevalve esihambelanayo kufuneka sikhethwe ngokwendawo yokusebenza ekhankanywe ngasentla.
Iimfuno zokusebenza zombaneiivalve
Ngokweemfuno zokulawula ubunjineli, kwi-valve yombane, umsebenzi wokulawula ugqitywe ngesixhobo sombane. Injongo yokusebenzisa iivalvu zombane kukuqonda ulawulo lombane olungelolwazandla okanye ulawulo lwekhompyutha ekuvuleni, ukuvala kunye nokulungelelaniswa konxibelelwano lweevalvu. Izixhobo zombane zanamhlanje azisetyenziswa nje ukugcina abasebenzi. Ngenxa yokwahluka okukhulu kumsebenzi kunye nomgangatho weemveliso ezivela kubakhiqizi abahlukeneyo, ukukhethwa kwezixhobo zombane kunye nokukhethwa kweevalve kubaluleke ngokulinganayo kwiprojekthi.
Ulawulo lombane lombaneiivalve
Ngenxa yokuphuculwa okuqhubekayo kweemfuno ze-automation ye-industrial, kwelinye icala, ukusetyenziswa kwee-valve zombane kuyanda, kwaye kwelinye icala, iimfuno zokulawula ii-valve zombane ziba phezulu kwaye zinzima ngakumbi. Ngoko ke, ukuyila kweevalve zombane ngokubhekiselele kulawulo lombane kukwahlaziywa rhoqo. Ngenkqubela phambili yesayensi kunye nobuchwepheshe kunye nokuthandwa kunye nokusetyenziswa kweekhomputha, iindlela ezintsha kunye nezahlukeneyo zokulawula umbane ziya kuqhubeka zivela. Kulawulo jikelele lombaneivalve, ingqalelo kufuneka ihlawulwe ekukhethweni kwendlela yokulawula i-valve yombane. Ngokomzekelo, ngokweemfuno zeprojekthi, nokuba kusetyenziswe imowudi yolawulo oluphakathi, okanye imo yokulawula enye, nokuba ukudibanisa nezinye izixhobo, ulawulo lwenkqubo okanye ukusetyenziswa kwenkqubo yolawulo lwenkqubo yekhompyutha, njl. njl., umgaqo wolawulo wahlukile. . Isampulu yomenzi wesixhobo sombane sevalve inika kuphela umgaqo omiselweyo wolawulo lombane, ngoko ke isebe losetyenziso kufuneka lenze ubhengezo lobugcisa kunye nomenzi wesixhobo sombane kwaye licacise iimfuno zobugcisa. Ukongezelela, xa ukhetha i-valve yombane, kufuneka ucinge ukuba uthenge isilawuli esongezelelweyo sombane. Kuba ngokubanzi, umlawuli kufuneka athengwe ngokwahlukileyo. Kwiimeko ezininzi, xa usebenzisa ulawulo olulodwa, kuyimfuneko ukuthenga isilawuli, kuba kulungele kwaye kungabizi ukuthenga umlawuli kunokuba uyilo kwaye uyivelise ngumsebenzisi. Xa umsebenzi wokulawula umbane awukwazi ukuhlangabezana neemfuno zoyilo lobunjineli, umenzi kufuneka acetywe ukuba aguqule okanye aphinde aqulunqwe.
Isixhobo sombane sevalve sisixhobo esiqonda inkqubo yevalve, ulawulo oluzenzekelayo kunye nolawulo olukude *, kwaye inkqubo yayo yokunyakaza inokulawulwa ngumthamo we-stroke, i-torque okanye i-axial thrust. Ekubeni iimpawu zokusebenza kunye nesantya sokusetyenziswa kwe-valve actuator ixhomekeke kuhlobo lwevalve, ukucaciswa kokusebenza kwesixhobo, kunye nendawo yevalve kumbhobho okanye izixhobo, ukhetho oluchanekileyo lwe-actuator yevalve lubalulekile ukukhusela ukugqithiswa ( itorque esebenzayo iphezulu kunetorque yokulawula). Ngokubanzi, isiseko sokhetho oluchanekileyo lwezixhobo zombane zevalve ngolu hlobo lulandelayo:
Itorque yokusebenzaItorque yokusebenza yeyona parameter iphambili yokukhetha isixhobo sombane sevalve, kunye netorque ephumayo yesixhobo sombane kufuneka ibe yi-1.2 ~ 1.5 amaxesha etorque yokusebenza kwevalve.
Kukho izinto ezibini eziphambili zomatshini wokusebenzisa isixhobo sombane sevalve yokutyhala: enye ayixhotyiswanga ngediski yokutyhala kunye netorque ephuma ngokuthe ngqo; Enye kukulungisa ipleyiti yokutyhala, kwaye itorque ephumayo iguqulelwa ekubeni yimveliso etyholwa nge-stem nut kwipleyiti yokutyhala.
Inani leenguqu ezijikelezayo zeshafti ephumayo yesixhobo sombane sevalve inxulumene nedayamitha yegama levalve, i-pitch yesiqu kunye nenani lemisonto, ekufuneka ibalwe ngokwe-M=H/ZS (M yi- Itotali yenani lojikelezo isixhobo sombane ekufuneka sihlangabezene nalo, H bubude bokuvulwa kwevalve, S yipitch yentambo yevalve stem, kwaye uZ linani leentloko ezinemisonto yevalve.ivalveisiqu).
Ukuba ububanzi besiqu esikhulu esivunyelwe sisixhobo sombane asikwazi ukudlula kwisiqu sevalve exhotyiswe, asikwazi ukuhlanganiswa kwivalve yombane. Ke ngoko, i-diameter yangaphakathi ye-hollow output shaft ye-actuator kufuneka ibe nkulu kunobubanzi obungaphandle besiqu sevalve yentonga evulekileyo. Kwi-valve yentonga emnyama kwi-valve ejikelezayo kunye ne-valve ye-multi-turn, nangona ingxaki edlulayo ye-valve stem diameter ingaqwalaselwa, ububanzi be-valve stem kunye nobukhulu bendlela engundoqo kufuneka iqwalaselwe ngokupheleleyo xa ukhetha, ukuze isebenze ngokuqhelekileyo emva kokuhlanganisana.
Ukuba isantya sokuvula kunye nokuvala i-valve yesantya sokuphuma sikhawuleza kakhulu, kulula ukuvelisa isando samanzi. Ngoko ke, isantya esifanelekileyo sokuvula kunye nokuvala kufuneka sikhethwe ngokwemiqathango eyahlukeneyo yokusetyenziswa.
I-valve actuators ineemfuno zazo ezizodwa, okt kufuneka ikwazi ukuchaza i-torque okanye i-axial forces. Ngesiqheloivalveii-actuators zisebenzisa i-torque-limiting couplings. Xa ubukhulu besixhobo sombane buchongiwe, i-torque yayo yokulawula nayo imiselwe. Ngokuqhelekileyo iqhutywe ngexesha elimisiweyo, i-motor ayiyi kugcwala kakhulu. Nangona kunjalo, ukuba iimeko ezilandelayo zenzeke, kunokukhokelela ekugqithiseni: okokuqala, amandla ombane aphantsi, kwaye i-torque efunekayo ayinakufumaneka, ukwenzela ukuba i-motor iyeke ukujikeleza; okwesibini kukulungisa ngempazamo indlela yokunciphisa itorque ukuyenza ibe nkulu kunetorque yokumisa, okukhokelela kwitorque eqhubekayo egqithisileyo kunye nokumisa imotor; eyesithathu kukusetyenziswa kwangethuba, kwaye ukuqokelelwa kobushushu okwenziwayo kudlula ixabiso elivumelekileyo lokunyuka kobushushu bemoto; Okwesine, ukujikeleza kwendlela yokunciphisa i-torque iyasilela ngenxa yesizathu esithile, esenza ukuba i-torque ibe nkulu kakhulu; Okwesihlanu, ubushushu be-ambient buphezulu kakhulu, obunciphisa amandla obushushu bemoto.
Ngaphambili, indlela yokukhusela i-motor yayikukusebenzisa i-fuses, i-overcurrent relays, i-thermal relays, i-thermostats, njl., kodwa ezi ndlela zineenzuzo zabo kunye nokungalunganga. Akukho ndlela yokukhusela ethembekileyo yezixhobo zomthwalo oguquguqukayo ezifana nezixhobo zombane. Ngoko ke, ukudibanisa okuhlukeneyo kufuneka kwamkelwe, okunokuthi kushwankathelwe kwiindidi ezimbini: enye kukugweba ukwanda okanye ukuncipha kwegalelo langoku lemoto; Okwesibini kukugweba imeko yokufudumala kwemoto ngokwayo. Nokuba yeyiphi na indlela, nokuba yeyiphi na indlela ithathela ingqalelo umda wexesha elinikiweyo lomthamo wobushushu bemoto.
Ngokuqhelekileyo, indlela yokukhusela isiseko somthwalo ogqithisiweyo kukuba: ukukhuselwa kokugqithiswa komsebenzi oqhubekayo okanye ukusebenza kwe-jog ye-motor, usebenzisa i-thermostat; Ukukhusela i-rotor stall, i-thermal relay yamkelwa; Kwiingozi ezimfutshane, iifuse okanye ii-overcurrent relays zisetyenziswa.
Uhlala eyomelela ngakumbiiivalve butterfly,ivalve yesango, khangela ivalveiinkcukacha, ungaqhagamshelana nathi nge whatsapp okanye E-mail.
Ixesha lokuposa: Nov-26-2024
