Taboo 16
Kutsegula ndi kutseka kwa ma valve pamanja, mphamvu zambiri
Zotsatira zake: valavu idzawonongeka ngati ili yopepuka, ndipo ngozi yachitetezo idzayamba ngati ili yolemetsa
Miyezo: valavu yamanja, gudumu lamanja kapena chogwirira chake, limapangidwa molingana ndi anthu wamba, poganizira mphamvu ya kusindikiza pamwamba ndi mphamvu yotseka yofunikira. Choncho, sikuloledwa kusuntha ndi lever yaitali kapena wrench yaitali. Anthu ena amazolowera kugwiritsa ntchito wrench, ayenera kusamala kwambiri, osagwiritsa ntchito mphamvu zambiri, apo ayi ndizosavuta kuwononga malo osindikizira, kapena kuswa gudumu lamanja ndi chogwirira. Tsegulani ndi kutseka valavu, mphamvu iyenera kukhala yokhazikika, osati zotsatira. Magawo ena a ma valve othamanga kwambiri okhala ndi kutseguka ndi kutseka kwamphamvu amaganizira mphamvu yamphamvu ndipo ma valve ambiri sangadikire. Kwa valavu ya nthunzi, musanatsegule, iyenera kutenthedwa pasadakhale ndipo madzi osungunuka adzachotsedwa. Mukatsegula, zizikhala pang'onopang'ono momwe mungathere kuti mupewe nyundo yamadzi. Vavu ikatsegulidwa kwathunthu, tembenuzirani gudumu lamanja pang'ono, kuti ulusiwo ukhale wolimba kuti zisawonongeke komanso kuwonongeka. Pa mavavu a tsinde otseguka, kumbukirani momwe tsinde la valavu lilili lotseguka komanso lotsekedwa bwino kuti musamenye pakati pomwe pali tsinde lotseguka. Ndikwabwino kuyang'ana ngati ili yabwinobwino ikatsekedwa kwathunthu. Ngati ofesi ya valavu ikugwa, kapena sundry yaikulu imayikidwa pakati pa zisindikizo zapakati pa valve, malo a valve amatha kusintha pamene valavu yatsekedwa kwathunthu. Pamene payipi ikugwiritsidwa ntchito kwa nthawi yoyamba, pali dothi lambiri mkati, kotero kuti valve ikhoza kutsegulidwa pang'ono. Kuthamanga kwakukulu kwa sing'anga kungagwiritsidwe ntchito kutsuka, ndiyeno ikhoza kutsekedwa pang'ono (singathe kutsekedwa mwamsanga kapena mwachiwawa kuti ziteteze zotsalira zotsalira kuwononga malo osindikizira). Ikhoza kutsegulidwanso. Bwerezani kangapo, yeretsani dothi, ndikuyika mu ntchito yabwinobwino. Vavu ikatsegulidwa kawirikawiri, pangakhale dothi pamalo osindikizira. Ikatsekedwa, njira yomwe ili pamwambayi iyenera kugwiritsidwa ntchito kuchapa, ndiyeno itsekedwe. Ngati handwheel ndi chogwirira chawonongeka kapena kutayika, ziyenera kufananizidwa nthawi yomweyo, ndipo sizingasinthidwe ndi wrench yosinthika, kuti mupewe kuwononga mbali zinayi za tsinde la valve ndikulephera kutsegula ndi kutseka, zomwe zimapangitsa kuti pakhale ngozi pakupanga. . Kwa ma TV ena, valavu ikatsekedwa ndikuzizidwa kuti valavu ichepetse, wogwiritsa ntchitoyo ayenera kutsekanso panthawi yoyenera kuti malo osindikizira asakhale ndi zotchinga zabwino. Kupanda kutero, zofalitsa zimadutsa muzitsulo zabwino pa liwiro lalikulu ndipo zimawononga mosavuta kusindikiza pamwamba. Panthawi yogwira ntchito, ngati ziwoneka kuti ntchitoyi ndi yolemetsa kwambiri, zifukwa ziyenera kufufuzidwa. Ngati kulongedza kwake kuli kolimba kwambiri, kumatha kumasulidwa bwino. Ngati tsinde la valve lakhota, ogwira ntchito adzadziwitsidwa kuti akonze. Kwa ma valve ena, akatsekedwa, mbali zotsekera zimatenthedwa ndikuwonjezedwa, zomwe zimapangitsa kuti zikhale zovuta kutsegula; ngati ayenera kutsegulidwa panthawiyi, akhoza kumasula ulusi wa bonnet kwa theka la bwalo kuti athetse kupsinjika kwa tsinde la valve, ndiyeno kusuntha gudumu lamanja.
Taboo 17
Kuyika kolakwika kwa mavavu kumalo otentha kwambiri
Zotsatira: ngozi yotayikira
Miyezo: chifukwa mavavu kutentha pamwamba pa 200 ℃, iwo anaika pa kutentha wabwinobwino. Pambuyo pakugwiritsa ntchito bwino, kutentha kumakwera, mabawuti amakula ndi kutentha, ndipo kusiyana kumawonjezeka. Choncho, ziyenera kumangidwanso, zomwe zimatchedwa "kutentha kotentha". Wogwira ntchitoyo ayenera kulabadira ntchitoyi, kapena kutayikira kumachitika mosavuta.
Taboo 18
Osati ngalande zake munthawi yozizira
Miyezo: nyengo ikazizira, valavu yamadzi imatsekedwa kwa nthawi yayitali, ndipo madzi osonkhanitsidwa kumbuyo kwa valve adzachotsedwa. Vavu ya nthunzi ikayima, condensate imachotsedwanso. Pansi pa valve ndi ngati pulagi, yomwe imatha kutsegulidwa kuti ikhetse madzi.
Taboo 19
Vavu yopanda chitsulo, kutsegula ndi kutseka kwamphamvu kwambiri
Miyezo: ma valve ena omwe si achitsulo ndi olimba komanso osasunthika, ndipo ena ndi otsika mphamvu. Panthawi yogwira ntchito, kutsegula ndi kutseka mphamvu sikudzakhala kwakukulu, makamaka mphamvu yamphamvu. Komanso samalani kuti musagwetse zinthu.
Taboo 20
Kuthamanga kwa valavu yatsopano kumakhala kolimba kwambiri
Miyezo: pamene valavu yatsopano ikugwiritsidwa ntchito, kulongedza sikuyenera kukanikizidwa mwamphamvu kwambiri, ndipo kuchuluka kwa kutayikira sikungatengedwe ngati digiri, kuti ateteze ndodo ya valve kuti isapanikizidwe kwambiri, ifulumizitse kuvala, ndi kupanga. kutsegula ndi kutseka kovuta. Ubwino wa kukhazikitsa ma valve kumakhudza mwachindunji ntchito, choncho m'pofunika kumvetsera malangizo ndi malo a valve, kumanga ma valve, chitetezo cha valve, bypass ndi chida, m'malo mwa valve.
Taboo 21
Palibe malo opangira poyika
Miyezo: malo oyika valavu ayenera kukhala abwino kuti agwire ntchito; ngakhale kukhazikitsa kuli kovuta kwakanthawi, ndikofunikira kuganiziranso ntchito yayitali ya wogwiritsa ntchito. Ndi bwino kupanga gudumu lamanja la valavu ndi chifuwa (nthawi zambiri 1.2m kutali ndi malo opangira opaleshoni), kotero kuti kutsegula ndi kutseka kwa valve kumakhala kopanda ndalama. Gudumu lamanja la valavu yolowera liyenera kuyang'ana m'mwamba, ndipo musapendekeke kuti musagwire ntchito movutikira. Vavu ya makina otsamira khoma ndi zida zidzasiyanso malo kuti woyendetsa ayime. Sizotetezeka kugwira ntchito mlengalenga, makamaka mu asidi ndi alkali, media zapoizoni, ndi zina zambiri.
Taboo 22
Mavavu opangidwa ndi zida zowonongeka
Miyezo: Kuyika ndi kumanga kuyenera kusamala kuti musamenye valavu yopangidwa ndi zida zowonongeka. Musanakhazikitse, yang'anani valavu, yang'anani ndondomeko ndi chitsanzo, ndipo muwone ngati pali kuwonongeka, makamaka pa tsinde la valve. Komanso tembenuzani kangapo kuti muwone ngati yapindika, chifukwa poyenda, imatha kugunda tsinde lopindika. Chotsaninso zinyalala mu valavu. Pokweza valavu, chingwe sichimangiriridwa pa gudumu lamanja kapena tsinde, kuti zisawonongeke zigawozi, ndipo zidzamangidwa pa flange. Paipi yolumikizidwa ndi valavu iyenera kutsukidwa. Mpweya woponderezedwa ukhoza kugwiritsidwa ntchito kutulutsa zinyalala za iron oxide, mchenga wamatope, kuwotcherera slag ndi zina. Ma sundries awa sizosavuta kukanda pamwamba pa valavu yosindikizira, komanso amatha kuletsa valavu yaing'ono ndikupangitsa kuti ikhale yosavomerezeka. Mukayika valavu yotsekera, chosindikizira chosindikizira (hemp ndi mafuta otsogolera kapena lamba wa polytetrafluoroethylene yaiwisi) chiyenera kukulungidwa pa ulusi wa chitoliro, ndipo sichidzayikidwa mu valavu, kuteteza valavu kuti isachulukane ndi kukhudza kufalikira kwapakati. . Mukayika valavu ya flange, samalani kuti muzimitsa ma bolts molingana komanso mofanana. Chovala cha valve ndi chitoliro cha chitoliro chiyenera kukhala chofanana ndi chilolezo chomveka, kuti musapewe kupanikizika kwambiri kapena kusweka kwa valve. Kwa zida zowonongeka ndi ma valve otsika mphamvu, chisamaliro chapadera chiyenera kulipidwa. Kuti valavu ikhale yowotcherera ndi chitoliro, kuwotcherera kwa malo kumayenera kuchitidwa poyamba, ndiye kuti gawo lotsekedwa lidzatsegulidwa kwathunthu, ndiyeno valavu idzatsekedwa.
Nthawi yotumiza: Nov-27-2019
