Lub regulating valve yog ib qho tseem ceeb hauv kev tswj cov dej muaj peev xwm ntawm cov tshuab hluav taws xob (xws li cov tshuab hluav taws xob, cov tshuab siv tshuaj, cov khoom siv hluav taws xob, thiab lwm yam), thiab nws cov kev ua tau zoo thiab kev nyab xeeb muaj feem cuam tshuam nrog kev ua haujlwm, kev ua haujlwm thiab kev ntseeg tau ntawm tag nrho. ntaus ntawv. Nyob rau hauv cov txheej txheem ntawm cov roj refining, petrochemical kev lag luam thiab lub zog tsim, feem ntau muaj kev vibration, suab nrov thiab valve qia rotation ntawm regulating li qub, thiab txawm tias muaj xwm txheej xws li valve qia puas vim kev co kuj tshwm sim.
mechanical kev co
mechanical vibration tuaj yeem muab faib ua ob lub xeev raws li nws daim ntawv qhia. Ib lub xeev yog tag nrho kev co ntawm lub regulating valve, uas yog, tag nrho cov tswj valve nquag vibrates ntawm lub raj xa dej los yog hauv paus, thiab yog vim li cas yog hais tias lub raj xa dej los yog lub hauv paus vibrates tsausmuag, ua rau tag nrho cov regulating valve vibrate. Tsis tas li ntawd, nws kuj muaj feem xyuam rau zaus, uas yog, thaum lub zaus sab nraud yog sib npaug los yog ze rau lub ntuj zaus ntawm lub cev, lub zog ntawm qhov yuam kev vibration resonates. Lwm lub xeev yog kev co ntawm lub regulating valve disc, uas yog feem ntau yog vim lub ntse nce nyob rau hauv lub ceev ntawm nruab nrab, thiaj li hais tias qhov sib txawv siab ua ntej thiab tom qab lub regulating valve hloov sharply, ua rau tag nrho cov regulating valve los tsim loj oscillation. .
cavitation vibration
cavitation vibration feem ntau tshwm sim nyob rau hauv cov kua nruab nrab ntawm lub regulator. Lub hauv paus ua rau cavitation yog cov kua vaporization tshwm sim los ntawm acceleration ntawm kua shrinkage thiab poob ntawm static siab nyob rau hauv lub valve tswj. Qhov me me ntawm qhov qhib ntawm lub regulator, qhov ntau dua qhov sib txawv ntawm lub siab ua ntej thiab tom qab nws, qhov ntau dua qhov muaj peev xwm ntawm cov kua acceleration thiab cavitation, thiab qhov cuam tshuam ntawm kev cuam tshuam cov dej siab poob qis dua.
Kev tiv thaiv
Los ntawm kev siv lub regulating valve thiab theoretical tsom xam tuaj yeem ua pov thawj tias muaj ntau yam uas ua rau muaj kev vibration thiab suab nrov ntawm lub regulating valve, thiab cov yam ntxwv no cuam tshuam rau ib leeg, thiab ntau yam tshwm sim nyob rau tib lub sijhawm, uas ua rau damping. thiab lub suab nrov txo ntawm lub regulating valve nyuaj dua, thiab yuav tsum tau txiav txim siab nyob rau hauv cov nqe lus ntawm valve khoom, qauv thiab kua dynamics.
Tiv thaiv txhua yam kev vibration
1, Lub installation txoj hauj lwm ntawm lub regulator yuav tsum nyob deb ntawm lub vibration qhov chaw, thiab yog hais tias nws yog unavoidable, kev tiv thaiv yuav tsum tau ua.
2, Xaiv qhov zoo. Yog hais tias lub valve disc hloov sai heev thiab rhiab heev ntawm lub valve positioner siab dhau lawm, ib tug me me hloov los yog drift nyob rau hauv lub regulator tso zis yuav tam sim ntawd hloov mus rau ib tug loj positioner tso zis teeb liab, ua rau lub valve oscillate. Kev sib txhuam ntawm qhov kev tswj lub valve me me dhau lawm, thiab kev hloov me me los yog drift ntawm cov teeb liab tawm sab nraud yuav raug xa mus rau lub valve disc tam sim ntawd thiab ua rau nws vibrate. Ntawm qhov tsis sib xws, yog tias qhov kev sib txhuam ntawm kev tswj lub valve loj dhau, nws tsis tuaj yeem ua thaum lub teeb liab me me, thiab qhov tshwm sim ntawm kev ua haujlwm ntau dhau thaum lub teeb liab loj yuav ua rau lub valve regulating tsim hysteresis oscillation. Nyob rau hauv cov ntaub ntawv no, lub damping ntawm tus coj ib feem ntawm lub regulating valve yuav tsum tau txo kom daws tau qhov teeb meem, xws li hloov lub muab tub lim.