Idan ka zagaya wurin taron masana'antar sinadarai, tabbas za ka ga wasu bututu da aka sanye da bawuloli masu zagaye-zagaye, waɗanda ke daidaita bawul.
Pneumatic diaphragm mai daidaita bawul
Kuna iya sanin wasu bayanai game da bawul ɗin daidaitawa daga sunansa.Maɓallin kalmar "tsari" shine cewa za'a iya daidaita kewayon daidaitawarta ba bisa ka'ida ba tsakanin 0 zuwa 100%.
Abokai masu hankali yakamata su gano cewa akwai na'urar da ke rataye a ƙarƙashin shugaban kowace bawul mai daidaitawa.Waɗanda suka saba da shi dole ne su san cewa wannan ita ce zuciyar bawul ɗin daidaitawa, madaidaicin bawul.Ta wannan na'urar, ana iya daidaita ƙarar iska da ke shiga cikin kai (fim ɗin pneumatic).Daidai sarrafa matsayin bawul.
Wuraren bawul sun haɗa da masu sakawa na hankali da na'ura mai ɗaukar nauyi.A yau muna magana ne game da na'ura mai mahimmanci na ƙarshe, wanda yake daidai da matsayi wanda aka nuna a cikin hoton.
Ka'idar aiki na inji pneumatic bawul positioner
Tsarin tsari na Valve positioner
Hoton da gaske yana bayanin abubuwan da ke cikin injin pneumatic bawul positioner daya bayan daya.Mataki na gaba shine ganin yadda yake aiki?
Tushen iska ya fito ne daga iska mai matsa lamba na tashar kwampreso.Akwai matsi na tace iska mai rage bawul a gaban mashigin tushen iska na ma'aunin bawul don tsarkake iska mai matsa lamba.Madogarar iska daga fitowar matsa lamba rage bawul tana shiga daga madaidaicin bawul.Adadin iskar da ke shiga cikin membrane na bawul an ƙaddara bisa ga siginar fitarwa na mai sarrafawa.
Fitar da siginar lantarki ta mai sarrafawa shine 4 ~ 20mA, kuma siginar pneumatic shine 20Kpa ~ 100Kpa.Juyawa daga siginar lantarki zuwa siginar pneumatic ana yin ta ta hanyar mai canza wutar lantarki.
Lokacin da siginar siginar lantarki ta mai sarrafawa ta canza zuwa siginar gas mai dacewa, siginar gas ɗin da aka canza yana aiki akan bellows.Lever 2 yana motsawa a kusa da fulcrum, kuma ƙananan sashin lefa 2 yana motsawa zuwa dama kuma ya kusanci bututun ƙarfe.Matsi na baya na bututun ƙarfe yana ƙaruwa, kuma bayan an ƙara shi ta hanyar amplifier pneumatic (bangaren da ke da ƙasa da alama a cikin hoton), an aika wani ɓangare na tushen iska zuwa ɗakin iska na diaphragm na pneumatic.Tushen bawul ɗin yana ɗaukar maɓallin bawul ɗin ƙasa kuma a hankali yana buɗe bawul ɗin ta atomatik.karami.A wannan lokacin, sandar amsawa (sanda mai juyawa a cikin hoton) da aka haɗa zuwa madaidaicin bawul yana motsawa zuwa ƙasa a kusa da fulcrum, yana haifar da ƙarshen ƙarshen ramin don matsawa ƙasa.Kamarar da aka haɗa da ita tana jujjuya agogo baya, kuma abin nadi yana jujjuya agogon agogo kuma yana motsawa zuwa hagu.Maida ra'ayin bazara.Tun da ƙananan sashe na raƙuman raƙuman raƙuman raƙuman raƙuman raɗaɗi yana shimfiɗa lever 2 kuma yana motsawa zuwa hagu, zai kai ga ma'auni mai ƙarfi tare da siginar siginar da ke aiki a kan bellows, don haka bawul ɗin yana daidaitawa a wani matsayi kuma baya motsawa.
Ta hanyar gabatarwar da ke sama, yakamata ku sami takamaiman fahimtar ma'aunin bawul ɗin inji.Lokacin da za ku sami dama, yana da kyau ku kwance shi sau ɗaya yayin aiki da shi, da zurfafa matsayi na kowane bangare na positioner da sunan kowane bangare.Saboda haka, taƙaitaccen tattaunawa na bawuloli na inji ya zo ƙarshe.Na gaba, za mu fadada ilimin don samun zurfin fahimtar sarrafa bawuloli.
fadada ilimi
Fadada ilimi daya
Bawul mai sarrafa diaphragm na pneumatic a cikin hoton nau'in rufaffiyar iska ne.Wasu mutane suna tambaya, me yasa?
Da farko, duba hanyar shigar da iska ta diaphragm aerodynamic, wanda ke da tasiri mai kyau.
Na biyu, duba jagorar shigarwa na maɓallin bawul, wanda yake tabbatacce.
Pneumatic diaphragm iska tushen samun iska, diaphragm yana danna maɓuɓɓugan ruwa shida da diaphragm ya lulluɓe, ta haka yana tura tushen bawul don matsawa ƙasa.An haɗa maɓallin bawul ɗin bawul ɗin bawul, kuma an shigar da maɓallin bawul ɗin gaba, don haka tushen iska shine bawul Matsar zuwa wurin kashewa.Saboda haka, ana kiransa bawul-zuwa-kusa.Buɗe kuskure yana nufin cewa lokacin da aka katse iskar iskar saboda gini ko lalata bututun iska, ana sake saita bawul ɗin ƙarƙashin ƙarfin amsawar bazara, kuma bawul ɗin yana cikin cikakken buɗewa kuma.
Yadda ake amfani da bawul ɗin kashe iska?
An yi la'akari da yadda ake amfani da shi daga yanayin aminci.Wannan sharadi ne da ya wajaba don zaɓar ko kunna iska ko kashewa.
Misali: drum na tururi, daya daga cikin na'urorin bututun ruwa, da bawul mai daidaitawa da ake amfani da shi a cikin tsarin samar da ruwa dole ne a rufe iska.Me yasa?Misali, idan tushen iskar gas ko wutar lantarki ya katse ba zato ba tsammani, tanderun na ci gaba da ci gaba da dumama ruwan da ke cikin ganga.Idan ana amfani da iskar don buɗe bawul ɗin daidaitawa kuma makamashi ya katse, za a rufe bawul ɗin kuma za a ƙone ganga cikin mintuna ba tare da ruwa ba (bushewar konewa).Wannan yana da hatsarin gaske.Ba shi yiwuwa a magance gazawar bawul mai daidaitawa a cikin ɗan gajeren lokaci, wanda zai haifar da rufewar tanderun.Hatsari na faruwa.Don haka, don guje wa bushewar konewa ko ma hatsarori na kashe tanderu, dole ne a yi amfani da bawul ɗin kashe gas.Ko da yake an katse makamashin kuma bawul ɗin daidaitawa yana cikin cikakken buɗaɗɗen matsayi, ana ci gaba da ciyar da ruwa a cikin ganga mai tururi, amma ba zai haifar da bushewar kuɗi a cikin ganga mai tururi ba.Har yanzu akwai lokacin da za a magance gazawar bawul mai daidaitawa kuma ba za a rufe tanderun kai tsaye don magance shi ba.
Ta hanyar misalan da ke sama, yanzu ya kamata ku sami fahimtar farko game da yadda za ku zaɓi bawul ɗin sarrafawa na buɗe iska da bawul ɗin sarrafa iska!
Fadada Ilimi 2
Wannan ƙananan ilimin shine game da canje-canje a cikin tasiri mai kyau da mummunan tasirin mai gano.
Bawul ɗin da ke daidaitawa a cikin adadi yana aiki mai kyau.Kyamara na eccentric yana da bangarori biyu AB, A yana wakiltar gefen gaba kuma B yana wakiltar gefe.A wannan lokacin, gefen A yana fuskantar waje, kuma juya gefen B a waje shine amsawa.Sabili da haka, canza alkiblar A a cikin hoton zuwa alkiblar B shine madaidaicin bawul ɗin inji.
Ainihin hoton da ke cikin hoton shine madaidaicin madaidaicin bawul, kuma siginar fitarwa mai sarrafawa shine 4-20mA.Lokacin da 4mA, daidaitaccen siginar iska shine 20Kpa, kuma bawul ɗin daidaitawa yana buɗewa sosai.Lokacin da 20mA, daidaitaccen siginar iska shine 100Kpa, kuma bawul ɗin daidaitawa yana rufe sosai.
Ma'aikatan bawul na injina suna da fa'ida da rashin amfani
Abũbuwan amfãni: madaidaicin iko.
Rashin hasara: Saboda kulawar pneumatic, idan ana so a mayar da siginar matsayi zuwa ɗakin kulawa na tsakiya, ana buƙatar ƙarin na'urar sauya wutar lantarki.
Fadada ilimi uku
Abubuwan da suka shafi rushewar yau da kullun.
Rashin gazawa yayin aikin samarwa al'ada ne kuma suna cikin tsarin samarwa.Amma don kiyaye inganci, aminci, da yawa, dole ne a magance matsalolin cikin lokaci.Wannan shine darajar zama a cikin kamfani.Don haka, za mu tattauna a taƙaice abubuwan da suka faru na kuskure da yawa:
1. Fitowar ma'aunin bawul kamar kunkuru.
Kada a buɗe murfin gaban mai saka bawul;saurari sautin don ganin ko bututun tushen iska ya tsage kuma yana haifar da zubewa.Ana iya tantance wannan da ido tsirara.Kuma saurari ko akwai wani sautin ɗigo daga ɗakin shigar da iska.
Bude murfin gaba na ma'aunin bawul;1. Ko an toshe madaidaicin madaidaicin;2. Duba matsayi na baffle;3. Duba elasticity na ra'ayin bazara;4. Rage bawul ɗin murabba'i kuma duba diaphragm.
2. Fitar da ma'aunin ma'aunin bawul yana da ban sha'awa
1. Bincika ko matsi na tushen iska yana cikin kewayon da aka kayyade kuma ko sandar amsa ta faɗi.Wannan shine mataki mafi sauki.
2. Bincika ko layin siginar daidai yake (matsalolin da suka taso daga baya ana watsi da su gabaɗaya)
3. Shin akwai wani abu da ya makale a tsakanin nada da makamin?
4. Bincika ko madaidaicin matsayi na bututun ƙarfe da baffle ya dace.
5. Bincika yanayin naɗaɗɗen bangaren lantarki
6. Bincika ko daidaitaccen matsayi na ma'auni na ma'auni ya dace
Sa'an nan, sigina shi ne shigar, amma fitarwa ba ya canzawa, akwai fitarwa amma ba ya kai ga mafi girman ƙima, da dai sauransu. Wadannan kurakuran kuma suna fuskantar kurakurai na yau da kullum kuma ba za a tattauna a nan ba.
Fadada ilimi hudu
Gudanar da daidaitawar bugun jini na bawul
A lokacin aikin samarwa, yin amfani da bawul mai daidaitawa na dogon lokaci zai haifar da bugun jini mara kyau.Gabaɗaya magana, koyaushe akwai babban kuskure yayin ƙoƙarin buɗe wani matsayi.
bugun jini shine 0-100%, zaɓi matsakaicin matsayi don daidaitawa, waɗanda sune 0, 25, 50, 75, da 100, duk an bayyana su azaman kaso.Musamman ga ma'aunin bawul na inji, lokacin daidaitawa, ya zama dole a san matsayi na kayan aikin hannu guda biyu a cikin ma'aunin, wato daidaitawar sifili da tazarar daidaitawa.
Idan muka ɗauki bawul ɗin mai buɗe iska a matsayin misali, daidaita shi.
Mataki 1: A wurin daidaita sifili, ɗakin sarrafawa ko janareta na sigina yana ba da 4mA.Ya kamata a rufe bawul ɗin da ke daidaitawa gabaɗaya.Idan ba za a iya cikakken rufe shi ba, yi daidaita sifili.Bayan an gama daidaita sifili, daidaita maki 50% kai tsaye, kuma daidaita tazarar daidai.A lokaci guda, lura cewa sandar amsawa da ma'aunin bawul ya kamata su kasance a cikin yanayin tsaye.Bayan an gama daidaitawa, daidaita maki 100%.Bayan an gama daidaitawa, daidaitawa akai-akai daga maki biyar tsakanin 0-100% har sai buɗewa daidai ne.
Ƙarshe;daga inji positioner zuwa mai hankali positioner.Ta fuskar kimiyya da fasaha, saurin bunƙasa kimiyya da fasaha ya rage ƙarfin aiki na ma'aikatan kula da layin gaba.Da kaina, ina tsammanin cewa idan kuna son yin amfani da basirar ku da kuma koyan basira, mai matsayi na inji shine mafi kyau, musamman ga sababbin ma'aikatan kayan aiki.Don sanya shi a bayyane, mai gano wuri mai hankali zai iya fahimtar ƴan kalmomi a cikin littafin kuma kawai motsa yatsun ku.Zai daidaita komai ta atomatik daga daidaita ma'aunin sifili zuwa daidaita kewayon.Jira kawai ya gama wasa kuma ya tsaftace wurin.Kawai barin.Don nau'in inji, sassa da yawa suna buƙatar tarwatsawa, gyarawa da sake shigar da kanku.Wannan tabbas zai inganta ƙarfin hannun ku kuma ya sa ku ƙara sha'awar tsarin sa na ciki.
Ko da kuwa yana da hankali ko mara hankali, yana taka muhimmiyar rawa a cikin dukkan tsarin samarwa na atomatik.Da zarar ya "buge", babu wata hanyar daidaitawa kuma sarrafawa ta atomatik ba shi da ma'ana.
Lokacin aikawa: Agusta-31-2023