Yog tias Ob Chav Acting Pneumatic Rotary Actuator kev nyab xeeb valve lub disc thiab lub rooj zaum ntsaws ruaj ruaj tshaj qhov ntsuas qhov ntsuas, nws yuav ua rau poob nruab nrab thiab ua rau cov khoom sib khi puas tsuaj ntxiv. Feem ntau hais lus, lub sealing nto ntawm qhov kev nyab xeeb valve feem ntau yog tsim los ntawm cov ntaub ntawv hlau, uas yuav tsum tau du thiab tiaj li sai tau. Txawm li cas los xij, yog tias qhov nruab nrab yog nyem tawm hauv qhov siab, nws tsis tuaj yeem ua kom tiav sealing yam tsis muaj qhov to. Yog li ntawd, nyob rau hauv qhov ntsuas siab ib puag ncig, kev nyab xeeb valve nrog chav ua haujlwm nruab nrab tsuas tuaj yeem kuaj pom los ntawm kev pom thiab pob ntseg. Lub ntsiab yog vim li cas rau valve leakage yog raws li nram no:
(1) Cov av thiab cov khib nyiab tshwm rau ntawm qhov chaw sib khi, thiab qhov chaw sib khi qub yog thaiv thiab sib cais, ua rau muaj qhov sib txawv ntawm lub hauv paus valve thiab lub rooj zaum valve, uas ua rau lub valve leakage. Yuav kom daws tau qhov teeb meem no, nws yog feem ntau yog los ntxuav cov av thiab cov khib nyiab ntawm lub sealing nto. Thaum lub boiler raug kaw ib ntus rau kev tshuaj xyuas thiab kev saib xyuas, lub valve kev nyab xeeb yuav tsum raug kuaj xyuas ua ntej. Nyob rau hauv cov ntaub ntawv ntawm to, zuag qhia tag nrho kev kho yuav tsum tau nqa tawm. Tom qab txias tag, khiav qhov hnyav 20 feeb sib nrug.
(2) Lub sealing nto puas lawm. Muaj ntau qhov laj thawj, xws li: cov khoom siv sealing tsis tsim nyog. Tom qab ntau xyoo ntawm kev siv, lub zog ntawm lub sealing nto yog yooj yim tsis muaj zog vim yog tsis tu ncua qhib thiab kaw, khiav-nyob rau hauv thiab txij nkawm, yog li tsis muaj zog sealing muaj peev xwm. Cov kev ntsuas tau pom zoo los daws qhov teeb meem no yog kom flatten qhov qub sealing nto, thiab ua cov txheej txheem thib ob thiab vuam raws li daim duab qub los txhim kho qhov tawv thiab lub zog ntawm qhov chaw. Thiab xyuam xim rau qhov chaw puas tsuaj, tsis txhob careless.
Ua kom zoo. Vim qhov kev saib xyuas tsis zoo, cov txheej txheem sib tsoo ntawm lub valve tseem ceeb thiab lub rooj zaum valve tsis tuaj yeem ncav cuag ib theem. Txoj kev daws teeb meem yog los kho kom ntau li ntau tau ntawm qhov sealing nto li sai tau, siv kev sib tsoo lossis txawm tig, nyob ntawm qhov hnyav ntawm qhov kev puas tsuaj. Kev sib dhos tsis raug lossis qhov chaw tsis raug. Thaum lub sij hawm tag nrho cov txheej txheem sib dhos, lub valve tub ntxhais thiab lub rooj zaum valve tsis zoo tag nrho, los yog qhov sib koom ua ke muaj teeb meem loj hauv lub teeb, los yog lub foob ntawm lub valve core thiab lub rooj zaum valve yuav xoob dhau los ua kom kaw tiag. Kev daws yog nruj me ntsis xyuas qhov ntev, tuab thiab kev faib tawm ntawm qhov sib txawv ntawm ib sab ntawm lub spool, thiab xyuas kom meej tias lub spool tsis tuaj yeem nqa los ntawm qhov sib txawv ntawm txhua qhov. Qhov dav ntawm qhov sealing nto yuav tsum raug txo kom tsim nyog raws li cov ntaub ntawv ntawm daim duab rau sealing.
