Kuphunzitsa kugwiritsa ntchito koyenera kwa mavavu kuti muchepetse njira zenizeni za kulephera wamba kwa mavavu osiyanasiyana ndi kulowetsa ma valve

Kuphunzitsa kugwiritsa ntchito koyenera kwa mavavu kuti achepetse njira zenizeni za kulephera kwa mavavu wamba ma valve ambiri ndi kulowetsedwa kwa ma valve Chifukwa mitundu yosiyanasiyana ya ma valve mu pulogalamu ya pulogalamu ya chiller imagwira ntchito yosintha ndikuwongolera kutuluka kwa nthunzi ndi madzi. Choncho, khalidwe la mankhwala ake kumathandiza kwambiri ntchito yachibadwa ya mafakitale chiller dongosolo mapulogalamu. Panthawi imodzimodziyo, kugwira ntchito ndi kugwiritsa ntchito valve sikusamala kuti iwonongeke (kuphatikizapo kuwonetsa ndi kutayikira), kusintha kwa valve, kupindika, kuphulika, etc. Kulephera kwina kwa valve nthawi zambiri kumakhala chifukwa cha ntchito yolakwika. Choncho, kugwiritsa ntchito bwino ma valve ndi chitsimikizo champhamvu chochepetsera kulephera kwa valve wamba. Chifukwa zosiyanasiyana mavavu mu chiller dongosolo mapulogalamu ntchito kusintha ndi kulamulira otaya nthunzi ndi madzi. Choncho, khalidwe la mankhwala ake kumathandiza kwambiri ntchito yachibadwa ya mafakitale chiller dongosolo mapulogalamu. Panthawi imodzimodziyo, kugwira ntchito ndi kugwiritsa ntchito valve sikusamala kuti iwonongeke (kuphatikizapo kuwonetsa ndi kutayikira), kusintha kwa valve, kupindika, kuphulika, etc. Kulephera kwina kwa valve nthawi zambiri kumakhala chifukwa cha ntchito yolakwika. Monga valavu yokulirapo yotsegulira, popanda wina ndi mzake panthawi yopereka ntchito yopereka ntchito momveka bwino, adatenga pambuyo pa zomwe zapezeka malinga ndi kuchuluka kwa deta sikukwanira, molakwika kuganiza kuti valavu sitsegula kapena kutsegulidwa kwa digiri sikokwanira, kuti mutsegule kachiwiri. , monga mwapadera anayamba kutambasula mkono Ndipo molimba kwambiri ndi kusintha kwa ndodo ya valve, kupindika, kuphulika, etc. Choncho, kugwiritsa ntchito bwino ma valve ndi chitsimikizo champhamvu chochepetsera kulephera kwa valve wamba. ① Vavu ikatsegulidwa ndikutsekedwa, ndizoletsedwa kugwiritsa ntchito mphamvu zambiri ndikukulitsa mkono wanthawiyo. (2) Vavu ikakhala pamlingo wokulirapo wotsegulira, gudumu lamanja liyenera kuzunguliridwa 1 ~ 2 nthawi kuti aletse kutsegulidwa kwa malingaliro onse olakwika kutsekedwa ndikugwira ntchitoyo. (3) tsinde la valve yosindikizira kudzaza zinthu m'chipindamo sikuyenera kuchulukira kapena pang'ono, ndikofunikira kupukuta kapu imatha kuthamangira pansi, nthawi yomweyo iyenera kukhala ndi mafuta ambiri. kudzaza chipinda chakuthupi. Pofuna kupewa kutayikira pa tsinde, chepetsani kukangana kouma, pewani kulumidwa ndi tsinde, kenako tsegulani valavu ndikutseka mosavuta. Valavu yomwe siigwiritsidwa ntchito nthawi zambiri imatha kutsegulidwa ndi kutsekedwa panthawi yake pansi pa chikhalidwe cha kukhathamiritsa kwadongosolo. (4) valavu atseka, ngati munthu sangathe kuzimitsa losindikizidwa, valavu pachimake ndi kusintha ena, monga valavu handwheel kutsegula azimuth mozungulira bwalo la 1 ~ 2), otaya mofulumira sing'anga mu dongosolo valavu. mavavu apakati ndi othamanga kwambiri othamangitsira, kuti achotse ma valve othamanga kwambiri komanso mtima wa ma valve a tinthu tating'onoting'ono, pambuyo pokhoma molimba amathanso. ⑤ Chiguduli chamanja pa valve sichiyenera kutengedwa kuti chigwiritsidwe ntchito, kuti chitetezeke kuti chisapezeke pogwiritsira ntchito mwadzidzidzi. Pa ntchito zonse zabwinobwino kapena valavu ya fluorine ikatha kutseka, kapu yosindikizira iyenera kumangidwa kuti furiji isatuluke mu tsinde la valve. Nthawi zambiri, zida zina zapadera (monga wrench) sizingagwiritsidwe ntchito m'malo mwa gudumu la valve kuti ligwire ntchitoyo. Ngati valavu ikufunika kupasuka ndi kukonzedwa, mapeto oyambirira a valve ayenera kupatulidwa ndikuchotsedwa ku pulogalamu ya pulogalamu, ndiko kuti, kuzimitsa valavu yoyenera, ndiyeno mutsegule firiji compressor, valavu ndi mgwirizano wogwirizana wa payipi mufiriji momwe mungathere. Pa nthawi yomweyo, kukonzekera disassembly ndi msonkhano pasadakhale (mwachitsanzo, kuvala magolovesi mphira, kukonzekera chigoba mpweya ammonia dongosolo mapulogalamu, ndi kutsegula centrifugal zimakupiza pa ngozi chitetezo kuchita mpweya wabwino). Disassembly sayenera kuchita ndi valavu imodzi otaya, kupewa refrigerant nthunzi yopuma kuvulala, mu disassembly wa valavu umodzi otaya nati, woyamba ayenera symmetrical lotayirira koma sayenera kupeza, monga valavu otaya limodzi lotayirira, palibe refrigerant yopuma. potsitsa, ngati padakali kuphulika kwa refrigerant, valavu imodzi yokha yothamanga iyenera kulumikizidwabe, fufuzani chifukwa chake ndikuchotsanso pambuyo pa disassembly. Mitundu yonse ya mavavu ndi mavavu onse amafotokozedwa mwachidule A, ma valve Ball valve, magawo otseguka ndi otseka (mpira) oyendetsedwa ndi tsinde la valve, ndi kuzungulira pakati pa mzere wa valve pazochitika zozungulira za valve. Mawonekedwe: 1, kuvala kukana: chifukwa pakatikati pa valavu yosindikiza molimba ndi kuwotcherera kaboni chitsulo, mphete yosindikizira ndi kuwotcherera kwa carbon steel spray, kotero kuti valavu yosindikiza mwamphamvu sikophweka kuwononga kwambiri pamene magetsi akusintha. (Ili ndi intensity index of 65-70) : 2, ntchito yabwino yosindikiza: chifukwa kusindikiza kwa valve yosindikizira molimba ndiko kugwiritsa ntchito kugaya kwaumunthu, mpaka pakati pa valve ndi mphete yosindikizira ingagwiritsidwe ntchito. Kotero chikhalidwe chake chopanda mpweya chimakhala chomveka. 3, magetsi osinthira magetsi: chifukwa pansi pa mphete yosindikizira ya valve yosindikiza yolimba imagwiritsa ntchito kasupe wa torsion kuti mphete yosindikizira ndi valavu ikhale yogwirizana kwambiri, kotero kuti kusintha kwa magetsi kumakhala kowala kwambiri pamene mphamvu yakunja imadutsa mphamvu yowonjezereka ya kasupe wa torsion. 4, moyo wautali wautumiki: wakhala akugwiritsidwa ntchito kwambiri mumafuta amafuta, zopangira mankhwala, kupanga magetsi, makampani opanga mapepala, mphamvu za nyukiliya, ndege, maroketi ndi magawo ena, komanso moyo watsiku ndi tsiku wa aliyense. Ubwino: Ubwino: 1, kutsekeka kwamadzimadzi ndikocheperako, ndipo coefficient yake yokana ndiyofanana ndi chitoliro chofanana. 2, kapangidwe kosavuta, kakulidwe kakang'ono, kulemera kopepuka. 3, pafupi ndi sipekitiramu, ndi valavu pamwamba zopangira ntchito pulasitiki, mpweya wabwino, mu ultrafiltration chipangizo chagwiritsidwanso ntchito. 4. Kugwira ntchito moyenera ndi kosavuta, kutsegulira mofulumira ndi kutseka, kumangofunika kuzungulira 90 ° kuchokera kutsegula mpaka kutseka, zomwe zimagwirizana ndi ntchito yakutali. 5, kukonza kosavuta, mawonekedwe osavuta a valve, mphete yosindikizira nthawi zambiri imakhala yochitapo kanthu, kuphatikizira ndikusintha m'malo ndikosavuta. 6, ntchito yotakata, chitoliro m'mimba mwake kuyambira ang'onoang'ono mpaka mamilimita angapo, zazikulu mpaka zingati, pampu ya vacuum yayikulu kapena kuthamanga kwambiri kungagwiritsidwe ntchito. Chachiwiri, valavu yoyimitsa (1) Vavu yachipata chamoto: tembenuzani gudumu lamanja kuti mukweze kapena kutsitsa mbale ya porous yolumikizidwa ndi tsinde la valavu molingana ndi kutsogola kapena kutulutsa mano kwa gudumu lamanja ndi tsinde la valavu, kuti athe ndi kutseka ntchito. Ma valve a zipata zamoto ali ndi ubwino wotsatirawu: 1, kutsekereza kwamadzimadzi kumakhala kochepa, pamwamba kumatsukidwa ndikukhazikika ndi sing'anga. 2, tsegulani ndi kutseka kuyesetsa kwambiri. 3, kulowa kwapakati sikuli malire, palibe chipwirikiti, palibe kuchepetsa kupanikizika. 4, thupi losavuta, lalifupi kapangidwe kukula, kupanga bwino ndi kupanga ntchito ndondomeko, lonse ntchito munda. Zowonongeka za valve yachipata chamoto ndi izi: 1, pakati pa pamwamba pake ndi zosavuta kuchititsa kukokoloka ndi kuphulika, kukonza kumakhala kovuta kwambiri. 2, kukula kwake ndi kwakukulu, kutsegula kuyenera kukhala malo enaake amkati, kutsegula ndi kutseka nthawi yayitali. 3, kapangidwe ndi zovuta. (ziwiri) valavu yachipata chamdima: imatchedwanso valavu ya rotary rod globe (yotchedwanso valavu ya chipata chakuda). Mtedza wa tsinde umakonzedwa pa valve yachipata, ndipo gudumu lamanja limazungulira kukankhira tsinde kuti lizizungulira, ndipo valve yachipata imakwezedwa. Kawirikawiri pali ulusi wa trapezoidal pansi pa tsinde. Malinga ndi mano a valavu pansi ndi kalozera pa valavu ya pistoni, ntchito yozungulira imakhala yofanana, ndiye kuti, torque yeniyeniyo imakhala mphamvu yoyendetsera ntchito. Atatu, valavu chimbale: gulugufe valavu, amatchedwanso mbedza mbedza valavu, ndi dongosolo losavuta la valavu zowongolera, angagwiritsidwe ntchito ngati otsika voteji payipi sing'anga kusintha chimbale valavu ndi kuzimitsa mbali (piston valavu kapena gulugufe mbale) kwa diski, molimba mozungulira valavu kuti mutsegule ndi kutseka valve. Chachinayi, valavu yoyimitsa: valve yowunika imatanthawuza kutuluka kwa sing'anga yokha ndi valavu ya pistoni yotseguka komanso yotseka, yomwe imagwiritsidwa ntchito kupewa valavu yapakatikati, yomwe imadziwikanso kuti reverse valve, valve throttle, valve reverse, ndi valavu yakumbuyo. Vavu yowunikira ndi yamtundu wa valve yodziwikiratu, ntchito yake yofunika ndikupewa kuphatikizika kwapakati, kupewa mpope ndikulimbikitsa injini kuti itembenuke, ndi zida zake kumasulidwa kwapakatikati. Chachisanu, valavu: valavu yachitetezo ndi gawo lotseguka ndi lotsekedwa pansi pa mphamvu yakunja yomwe ili pamalo omwe nthawi zambiri imatsekedwa, pamene kupanikizika kwapakati pa malo kapena payipi kumakwera kuposa mtengo wokhazikika, malinga ndi dongosolo loletsa kupanikizika kwapakati mu mapaipi kapena zida zopitilira zomwe zafotokozedwa za valve yapadera. Vavu ndi ya kalasi ya valavu yodziyimira payokha, yomwe imagwiritsidwa ntchito makamaka pakuwotcha ng'anjo, chotengera choponderezedwa ndi payipi, kuthamanga kwa ntchito sikudutsa mtengo wanthawi zonse, chitetezo cha moyo ndi magwiridwe antchito achitetezo chachikulu. Zisanu ndi chimodzi, kutayikira kochepa komanso valavu yosindikizira kwambiri: udindo wa kutayikira kochepa komanso valavu yosindikiza kwambiri: ndikupewa mapulogalamu a pulogalamu chifukwa cha kuchuluka kwa mpweya wotuluka chifukwa cha ntchito yolakwika ya pulogalamu ya pulogalamu ndikuyika mu valve pipeline. Imayikidwa mu payipi yoyambira, nthawi zambiri pamalo otseguka, pokhapokha polowera kukakamiza kuti atseke, ntchito yake yayikulu ndikuchotsa kutayikira chifukwa cha valavu ya pneumatic Seven, valve regulating valve (a) valavu yochepetsera kuthamanga kwapakati. : Kutsegula kwa valavu yoyendetsa ndege kumagwiritsidwa ntchito pogwiritsa ntchito chowongolera chapamwamba cha nangula molunjika, kotero kuti kusungunuka komwe kumayambitsidwa ndi kugwedezeka kwa masika, kotero kuti valavu yoyendetsa ndegeyo iwonongeke pansi, zotsatira za mphamvu pa crankshaft yoyendetsa ndege, kotero kuti kuchepetsa pansi kutsegula woyendetsa valavu. Vavu yoyendetsa ndege ikatsegulidwa, nthunzi yopita kumtunda ndi kunsi kwa mtsinje mumtsempha wa A wa gawo la chitoliro cha nthunzi kudzera munjira yachitetezo cha α (njira yotetezera mpweya), kudzera mu valavu yoyendetsa kupita ku mphete ya valavu yoyendetsa, kuchokera panjira yachitetezo ya β nthawi yomweyo. kutumizidwa ku chifuwa ndi m'mimba patsekeke ya pisitoni ndodo yamphamvu pansipa. Pansi pa kuperekedwa kosalekeza kwa nthunzi mu chipinda A, kupanikizika kumakwera mosalekeza, zomwe zimalimbikitsa ndodo ya pisitoni kuti isunthike ndikutsegula valavu yogawa. Panthawiyi, mtsinje wopanda malire wa nthunzi umayenda kuchokera ku chipinda A kupita ku chipinda B. Pamene katundu m'chipinda B cha gawo lapakati ndi pansi pamtsinje ufika, mpweya wochuluka umapangitsa kuti kupanikizika mu chipinda B kupitirize kukwera. Kuthamanga kopitilira muyeso molingana ndi njira yachitetezo γ (kukakamiza maginito chitetezo njira) ndemanga kwa woyendetsa valavu pulse damper chipinda, woyendetsa valavu diaphragm kumtunda convex, chotsani kumapeto kwa kumtunda kwa kusintha kwa kuthamanga kwa masika, valavu yoyendetsa ndi yaying'ono kapena yotsekedwa. Kupitilira apo, zimitsani kapena zimitsani gwero la nthunzi kuchokera kumtunda ndi kunsi kwa mtsinje α njira yotetezeka. Pamene kupanikizika kwa thoracic ndi m'mimba kwa piston ndodo ya silinda kumachepetsedwa, valavu yogawa imasinthidwa kapena kutsekedwa pansi pa mphamvu ya torsion spring calibration pansipa, ndiye kuti kupanikizika mu B cavity kumachepetsedwa pang'onopang'ono, kuti akwaniritse cholinga cha thiransifoma mozungulira. (awiri) valavu yowongolera kuthamanga kwamtundu wanthawi yomweyo: nthawi yomweyo torsion spring pulasitiki filimu mtundu kuthamanga valavu nthawi yomweyo torsion kasupe pulasitiki filimu mtundu kuthamanga valavu makiyi ndi kusintha torsion kasupe, kugunda damper, pisitoni ndodo, kuthamanga chipata valavu, valavu pisitoni ndi zina. magawo. Pulse damper imagwiritsidwa ntchito kukankhira valavu ya pisitoni nthawi yomweyo ndikusintha kutsegulira kwa diski yolimba kuti muchepetse kupanikizika ndikukhazikika chubu chokakamiza. (3) Valavu yowongolera kuthamanga: Valavu yowongolera mphamvu imagwiritsidwa ntchito mu valavu yoyendetsa ndege yomwe ili m'thupi lachitseko ndikutseka sing'anga kuti isinthe kutseguka kwa magalimoto, kuchepetsa kuthamanga kwa sing'anga, nthawi yomweyo kudalira. pa zotsatira za valve pambuyo pa kusintha kwa kuthamanga kwa kutsegula ndi kutseka kutseguka, sungani valavu pambuyo pa kupanikizika m'dera linalake, kupanikizika kwa kusintha kosalekeza kwa zochitika kunja, kusunga gulu la mkati ndi kunja kukakamizika pakukhazikitsa Pambuyo pokonza kupanga kupanga moyo wa tsiku ndi tsiku. zida. Eyiti, valavu ya mpira yoyandama: zoyandama zimafunika kuyandama m'nyanja kuyambira koyambira mpaka kumapeto, mtsinje ukachuluka, zoyandama zimatsatanso kukwera. Kuthamanga kumakankhira crankshaft mmwamba. Crankshaft imalumikizidwa ndi valavu kumapeto kwina, ndipo ikakwezedwa pamalo ena, crankshaft imathandizira pulasitiki ya piston ndodo, yotsekedwa ndi madzi. Madzi akatsika, choyandamacho chimatsika, ndipo crankshaft imakankhira pisitoni ndodo yotseguka.