Lub diaphragm metering twj tso kua mis yog ib hom twj tso kua mis zoo uas siv los xa cov kua dej kom raug thiab tswj tau, feem ntau hauv cov ntawv thov uas qhov tseeb ntawm cov kua xa tawm yog qhov tseem ceeb. Nws feem ntau yog siv rau hauv cov txheej txheem kev lag luam, kev kho dej, kev siv tshuaj lom neeg, thiab lwm yam kev siv uas qhov ntim tshwj xeeb lossis cov dej ntws ntawm cov kua yuav tsum tau xa.
Cov khoom tseem ceeb ntawm lub diaphragm metering twj tso kua mis muaj xws li:
1. Diaphragm: Lub diaphragm yog ib qho yooj yim daim nyias nyias uas txav mus rau sab nraud kom tshem tawm cov kua. Nws feem ntau yog ua los ntawm cov ntaub ntawv uas sib haum nrog cov kua dej uas tau nqus.
2.Pump Head: Lub taub hau twj tso kua mis muaj cov diaphragm thiab yog qhov chaw uas cov kua yog pumped. Nws muaj inlet thiab qhov hluav taws xob ports rau cov kua.
3.Drive Mechanism: Lub tshuab tsav yog lub luag haujlwm rau kev txav lub diaphragm rov qab thiab tawm mus. Qhov no tuaj yeem ua tiav siv ntau txoj hauv kev, suav nrog lub tshuab hydraulic, lub tshuab hluav taws xob, lossis lub tshuab hluav taws xob.
4.Check Valves: Diaphragm metering twj feem ntau muaj cov tshev valve ntawm qhov nkag thiab qhov hluav taws xob los xyuas kom meej ib txoj kev ntws ntawm cov kua thiab tiv thaiv rov qab.
Kev khiav hauj lwm ntawm lub diaphragm metering twj tso kua mis yog tus cwj pwm los ntawm cov lus tsa suab reciprocating ntawm lub diaphragm. Thaum lub diaphragm txav mus rau hauv ib qho kev taw qhia (xws li, compresses), nws tsim lub tshuab nqus tsev twj tso kua mis lub taub hau, kos cov kua los ntawm inlet check valve. Thaum lub diaphragm txav mus rau qhov sib txawv (xws li nthuav dav), nws pressurizes cov kua, yuam nws tawm los ntawm lub qhov hluav taws xob kos valve. Lub voj voog no rov ua dua kom xa cov kua dej meej thiab ntsuas nrog txhua tus mob stroke.
Diaphragm metering twj yog paub txog lawv lub peev xwm los muab qhov tseeb thiab sib npaug ntawm cov kua dej, ua rau lawv tsim nyog rau cov ntawv thov uas muaj kev tswj xyuas cov tshuaj lom neeg lossis cov kua dej ntxiv yog qhov tseem ceeb. Lawv kuj tseem raug xaiv los tuav corrosive, abrasive, lossis cov kua dej khov vim tias lub diaphragm ua qhov cuam tshuam ntawm cov twj tso kua mis thiab cov khoom seem ntawm cov twj tso kua mis, txo qhov kev pheej hmoo ntawm kev kis kab mob lossis kev puas tsuaj rau lub twj tso kua mis.
