Lub hli tas los, kuv tau sawv hauv qhov av nkos ntawm qhov chaw nres tsheb hloov dej hauv thaj chaw deb, saib tus txiv neej saib xyuas ncaws lub log ntawm lub tsheb thauj khoom hauv kev ntxhov siab. Nws tau taw qhia ntawm 90-degree pneumatic actuator ntawm npauj npaim valve uas tau siv ze li 40 vib nas this los kaw.
"Peb yuav lub pneumatic vim nws pheej yig dua," nws hais rau kuv. "Tab sis lub tshuab cua compressor yog 800 meters deb. Thaum lub sijhawm huab cua tuaj ntawm no, lub siab poob qis heev lub actuator cia li nkag mus."
Raws li ib tug kws engineers uas siv ib nrab kuv lub neej nyob rau hauv lub khw hauv pem teb ntawm WUXI XINMING AUTO-CONTROL VALVES INDUSTRY CO., LTD. thiab lwm qhov kev daws teeb meem ib nrab ntawm cov neeg siv khoom, kuv pom qhov xwm txheej no txhua lub sijhawm. Kev sib cav ntawm 90-degree pneumatic actuator thiab hluav taws xob actuator tsis yog hais txog qhov twg "zoo dua" hauv lub tshuab nqus tsev. Nws yog hais txog qhov twg muaj sia nyob koj cov nroj tsuag tshwj xeeb.
Cov ntawv qhia yuav muab cov nplooj ntawv tshwj xeeb rau koj. Kuv yuav muab qhov tseeb rau koj. Here is how we actually make this choice when we are standing in front of the pipeline.
1. Qhov Tseeb Infrastructure: Air Lines vs. Fais Fab Cables
Cia peb ua blunt: lub pneumatic actuator tsuas yog zoo li huab cua pub rau nws.
Hauv qhov chaw nres tsheb dej nyob deb kuv tau hais, tus neeg siv tau txuag $ 500 ntawm lub tshuab hluav taws xob tab sis siv $ 4,000 tso cov cua kub cua hauv qhov chaw, tsuas yog raug kev txom nyem los ntawm kev poob siab. Yog tias koj lub valve nyob deb ntawm qhov kev ntseeg siab, siab - muaj peev xwm cua compressor, lossis yog tias koj siv lub tshuab xa hluav taws xob sib cais, cov kab khiav cua yog qhov kev npau suav phem thiab nyiaj txiag. Hauv cov xwm txheej no, hluav taws xob 90-degree actuator yog tus yeej tsis muaj kev sib tw. Koj tsuas yog rub lub hwj chim cable, xaim nws, thiab nws ua haujlwm.
Txawm li cas los xij, yog tias koj cov nroj tsuag twb muaj lub zog, qhov nruab nrab ntawm qhov ntsuas huab cua (feem ntau yog 5 txog 7 bar) thiab cov li qub tau sib koom ua ke, pneumatic tau nrawm dua rau nruab thiab pheej yig dua ua ntej.
2. Qhov "Fail-Safe" Qhov Tseem Ceeb: Yuav Ua Li Cas Thaum Tej Yam Tsis Zoo?
Qhov no yog qhov uas lub physics ntawm ob lub thev naus laus zis sib txawv kiag li, thiab feem ntau nws yog qhov kev txiav txim siab rau kev nyab xeeb - cov ntawv thov tseem ceeb.
Ob peb xyoos dhau los, ib tsob nroj tshuaj hu ua peb hauv kev ceeb ntshai. Kev hloov pauv ntawm kab sib chaws ua rau lub zog poob qis. Lawv lub quarter hluav taws xob- tig actuators ntawm cov kab dej txias tsuas nres qhov chaw lawv nyob (tsis ua haujlwm-hauv- qhov chaw). Cov reactors pib overheating.
Peb hloov lawv nrog caij nplooj ntoos hlav- rov qab pneumatic actuators. Vim li cas? Vim pneumatics tuaj yeem nruab nrog lub caij nplooj ntoos hlav pob. Yog tias cov nroj tsuag poob lub zog los yog poob cua, cov khoom siv hluav taws xob khaws cia hauv cov dej ntws tawm mus rau hauv qhov chaw nyab xeeb (tag nrho qhib lossis kaw tag nrho) hauv 2 mus rau 3 vib nas this.
Yog tias koj cov txheej txheem yuav tsum tau lav tsis tau- txoj haujlwm nyab xeeb thaum muaj xwm txheej ceev, tus qauv hluav taws xob hluav taws xob yuav tsis txiav nws tshwj tsis yog tias koj yuav lub roj teeb uas kim heev, hnyav heev - cov txheej txheem thaub qab. Rau kev ua tsis tiav- nyab xeeb, 90-degree pneumatic yog tus qauv kev lag luam vim li cas.
3. Qhov chaw txaus ntshai thiab tawg -Kev pov thawj
Yog tias koj siv lub tshuab hluav taws xob hauv cov chaw siv roj thiab roj, lub khw pleev xim, lossis cov chaw cog tshuaj nrog cov hmoov av combustible, koj tab tom cuam tshuam nrog cov huab cua tawg (Zone 1 lossis Zone 2).
Kuv tab tom tshuaj xyuas P&ID rau cov neeg siv tshuaj kho mob uas tau teev cov khoom siv hluav taws xob rau lawv cov kuab tshuaj rov qab. Thaum peb them nws tawm, qhov tawg- pov thawj (ATEX / IECEx) hluav taws xob actuators loj heev. Lawv hnyav tshaj 80kg txhua, yuav tsum tau siv zog ntxiv cov hlua khi, thiab raug nqi peb zaug ntau npaum li cov qauv qauv.
Kuv nug tus neeg siv khoom, "Koj puas muaj cov cuab yeej cua ntawm lub caij ntuj no?" Lawv ua.
Kuv tam sim ntawd swapped tus spec rau pneumatic 90-degree actuators. Vim tias pneumatics tsis siv hluav taws xob txav mus los, lawv muaj kev nyab xeeb hauv nruab nrab. Koj tsis xav tau qhov hnyav, kim tawg-pov thawj enclosures. Peb khaws cov neeg siv nyiaj ntau txhiab daus las, thiab cov actuators yog lub teeb txaus rau ob tug txiv neej nqa lub scaffolding yam tsis muaj crane.
4. Precision thiab Modulation
Muaj ib qho chaw uas cov hluav taws xob actuators ua tiav tag nrho: throttling meej.
Yog tias koj xav tau lub pob valve los zaum ntawm 43.5 degrees qhib kom tswj tau tus nqi ntws tshwj xeeb, thiab koj xav tau nws los kho tsis tu ncua raws li 4-20mA teeb liab los ntawm koj lub PLC, lub tshuab hluav taws xob hluav taws xob nrog kev sib koom ua ke yog qhov zoo kawg nkaus thiab muaj tseeb.
Puas tuaj yeem pneumatic modulate? Yog, los ntawm kev ntxiv ib lub positioner thiab cua xauv li qub. Tab sis lawv yuav ib txwm muaj me ntsis "kev yos hav zoov" lossis jittery txav vim yog huab cua compressibility. Yog tias koj cov txheej txheem xav tau ultra- meej, pob zeb- khov kho, mus nrog hluav taws xob. Yog tias nws yooj yim qhib / kaw (on / off) lub luag haujlwm, pneumatic yog txhua yam koj xav tau.
Ib tug Engineer's Honest Advice
Thaum cov neeg siv khoom nug kuv, "Kuv yuav yuav qhov twg?" kuv thawj lo lus nug yog ib txwm: "Yuav ua li cas siv hluav taws xob koj muaj nyob rau ntawm qhov chaw valve, thiab yuav ua li cas yog tias lub hwj chim tawm?"
Tsis txhob xaiv raws li tus nqi catalog. Xaiv raws li koj cov nroj tsuag qhov tseeb.
Xaiv Hluav Taws Xob yog tias koj tsis muaj huab cua, lub valve yog cov chaw taws teeb, lossis koj xav tau ultra{0}}kev hloov pauv meej.
Xaiv 90-Degree Pneumatic yog tias koj muaj lub ntsuas cua, koj xav tau kev nyab xeeb sai sai (lub caij nplooj ntoo hlav rov qab), koj nyob hauv qhov chaw tawg, lossis koj xav txuag cov nqi peev nyiaj ua ntej.
Ntawm WUXI XINMING AUTO-CONTROL VALVES INDUSTRY CO., LTD., peb tsim ob qho tib si. Peb tsis thawb ib leeg rau lwm tus. Peb tsuas yog xav kom koj lub valve ua haujlwm ntseeg siab rau hmo Sunday thaum koj tsis nyob ntawd los saib nws.
Yog tias koj tab tom tawm tsam xaiv ntawm pneumatic thiab hluav taws xob rau koj qhov project valve automation tom ntej, xa peb koj P&ID, qhov chaw siv hluav taws xob, thiab cov txheej txheem yuav tsum tau ua. Peb pab neeg ua haujlwm engineering yuav muab tswv yim rau koj, tsis muaj - lus pom zoo tsis zoo raws li koj qhov chaw nyob.
Hu rau Xinming hnub no, thiab cia peb tau txais koj lub valve automation txoj cai thawj zaug.
