Yuav ua li cas xaiv lub pneumatic tswj valve los ntawm kev xav txog kev ua haujlwm

Nyob rau hauv cov txheej txheem ntawm kev lag luam ntau lawm, tshwj xeeb tshaj yog nyob rau hauv kev tswj txuas ntawm pneumatic system, yuav tsum muaj kev tswj valve zoo. Hauv cov txheej txheem ntawm kev xaiv, peb yuav tsum xyuam xim rau qhov teeb meem dab tsi?

1. Kev cai muaj nuj nqi

① Lub valve tswj yuav tsum ruaj khov; ② Kev qhib me me muaj kev tswj xyuas zoo; ③ Xaiv cov yam ntxwv ntws xav tau; ④ Ua tau raws li qhov hloov pauv tau; ⑤ Kev ua haujlwm me me thiab qhov loj txaus sib piv (qhov piv ntawm cov ntsuas ntsuas ntsuas thiab qhov nominal txoj kab uas hla ntawm kev tswj valve); ⑥ Kho qhov ceev.

2. Tawm thiab txiav tawm qhov sib txawv ntawm qhov siab

Cov no yog ob yam tsis sib xws thiab sib cuam tshuam. Cov dej xau yuav tsum ua tau raws li cov txheej txheem, thiab kev ntseeg siab ntawm qhov sealing nto yuav tsum tau tiv thaiv; Qhov kev txiav tawm siab sib txawv (qhov sib txawv siab thaum lub valve raug kaw) yuav tsum tau muab tso rau pem hauv ntej (hmoov tsis zoo, qhov ntsuas no tsis suav nrog hauv kev suav cov lus qhia ntawm kev tswj lub valve ntawm ntau lub koom haum tsim), kom cov xaiv tswj valve muaj cov zis txaus. yuam kom kov yeej nws, txwv tsis pub nws yuav ua rau kev xaiv ntawm qhov loj lossis me actuator.

3. Anti thaiv

Txawm hais tias nws yog qhov nruab nrab huv, kuj tseem muaj teeb meem ntawm kev thaiv, uas yog tias cov khoom tsis huv hauv cov kav dej tau coj mus rau hauv lub valve tswj los ntawm qhov nruab nrab, ua rau muaj kev thaiv. Qhov no yog ib qho txhaum, yog li qhov kev tiv thaiv thaiv kev ua haujlwm ntawm kev tswj valve yuav tsum raug txiav txim siab. Feem ntau, kev tiv thaiv thaiv kev ua haujlwm ntawm lub kaum sab xis stroke tswj valve yog qhov zoo dua li qhov ncaj nraim tswj lub valve, yog li lub kaum sab xis stroke tswj valve yuav siv ntau dua yav tom ntej.

4. Corrosion kuj

Nws suav nrog erosion kuj, cavitation kuj thiab corrosion kuj. Nws feem ntau suav nrog kev xaiv cov khoom siv thiab kev pabcuam lub neej ntawm kev tswj valve, tib lub sijhawm, nws tseem cuam tshuam txog kev lag luam. Lub ntsiab lus ntawm qhov teeb meem no yuav tsum yog tias lub valve xaiv tau zoo corrosion kuj thiab tus nqi tsim nyog. Yog tias koj tuaj yeem xaiv tag nrho PTFE valve, koj yuav tsum tsis txhob xaiv tag nrho cov corrosion resistant alloy tswj valve; Yog hais tias lub kaum sab xis siab tswj valve nrog cov nyhuv zoo tiv thaiv cavitation thiab cov qauv yooj yim tuaj yeem xaiv tau (kom ua tau raws li qhov kev pab cuam lub neej txog li ob xyoos), lwm yam kev tswj lub siab nrog cov qauv nyuaj thiab tus nqi kim yuav tsum tsis txhob xaiv.

5. Nrog voltage thiab kub

Qhov no suav nrog kev xaiv ntawm nominal siab thiab ua haujlwm kub ntawm lub valve tswj. Nyob rau hauv cov nqe lus ntawm lub siab tsis kam, yog hais tias lub siab yog siab, nws tsis yog nyuaj, feem ntau vim hais tias lub siab sib txawv yuav tsim cavitation; Hais txog qhov kub thiab txias, nws feem ntau yog yooj yim los daws qhov teeb meem hauv qab 450 degree, thiab nws tsis yooj yim los daws qhov teeb meem ntawm 450 degree thiab 600 degree, tab sis thaum nws siab tshaj 600 degree, qhov tsis sib xws yuav yog qhov tseem ceeb; Thaum qhov kub thiab txias yog 80 degree, cov khoom siv mos sealing feem ntau tsis pom zoo rau kev kaw-tawm tswj valve, yog li nyuaj sealing kaw-off yuav tsum xav txog.

6. Qhov hnyav thiab qhov tsos

Qhov teeb meem no yog intuitive heev, yuav tsum yog cov tsos zoo, lub teeb yuag tswj valve yog txais tos los ntawm manufacturers. Ntawm no los hloov qhov kev txiav txim siab tias qhov kev tswj valve yog "loj loj tuab", hnyav lossis tsis zoo zoo li tsis zoo. Tam sim no peb muab qhov tseem ceeb rau nws, kom lub valve tswj yuav tsum muaj cov yam ntxwv ntawm miniaturization, lub teeb yuag, instrumentation.