1. Mfundo yogwira ntchito ya DBB plug valve
DBB plug valve ndi valavu iwiri ndi kutuluka magazi: valavu yachidutswa chimodzi yokhala ndi malo awiri osindikizira mipando, ikakhala pamalo otsekedwa, imatha kuletsa kuthamanga kwapakatikati kuchokera kumtunda ndi kumunsi kwa valavu panthawi yomweyo, ndipo imatsekeredwa pakati pa malo osindikizira Pampando Ma valve a thupi lamkati amakhala ndi njira yopumula.
Mapangidwe a valavu ya pulagi ya DBB amagawidwa m'magawo asanu: boneti yapamwamba, pulagi, mpando wa mphete yosindikizira, thupi la valve ndi bonnet yapansi.
Thupi la pulagi la valavu ya pulagi ya DBB limapangidwa ndi pulagi ya valavu ya conical ndi ma valavu awiri kuti apange thupi la pulagi ya cylindrical.Ma valavu a discs mbali zonse ziwiri amakutidwa ndi malo osindikizira a mphira, ndipo chapakati ndi pulagi ya conical wedge.Vavu ikatsegulidwa, njira yotumizira imapangitsa kuti pulagi ya valavu iwuke, ndikuyendetsa ma valavu kumbali zonse ziwiri kuti atseke, kotero kuti chisindikizo cha valavu ndi chisindikizo cha valavu chimasiyanitsidwa, ndiyeno chimayendetsa pulasitiki thupi kuti lizizungulira 90. ° pamalo otseguka a valve.Pamene valavu yatsekedwa, njira yotumizira imayendetsa pulagi ya valavu 90 ° kumalo otsekedwa, ndiyeno imakankhira pulagi ya valve kuti itsike, ma discs a valve kumbali zonse ziwiri amakhudza pansi pa thupi la valve ndipo samasunthanso pansi, pakati. valavu pulagi ikupitiriza kutsika, ndipo mbali ziwiri za valavu zimakankhidwa ndi ndege yolowera.Diski imasunthira kumalo osindikizira a thupi la valve, kotero kuti kusindikiza kofewa kwa diski ndi kusindikiza pamwamba pa thupi la valve kumakakamizidwa kuti akwaniritse kusindikiza.Kuchita kwamphamvu kumatha kutsimikizira moyo wautumiki wa valve disc seal.
2. Ubwino wa valavu ya pulagi ya DBB
Ma valve a DBB plug ali ndi kukhulupirika kwakukulu kosindikiza.Kupyolera mu tambala wapadera wooneka ngati mphero, njanji yooneka ngati L ndi mapangidwe apadera a opareshoni, chisindikizo cha valavu ndi ma valve osindikizira thupi amasiyanitsidwa wina ndi mzake panthawi ya ntchito ya valavu, motero kupeŵa mbadwo wa mikangano, kuthetsa kuvala kwa chisindikizo. ndi kukulitsa moyo wa valve.Moyo wautumiki umapangitsa kudalirika kwa valve.Panthawi imodzimodziyo, kukhazikitsidwa kwadongosolo lachidziwitso chothandizira kutentha kumatsimikizira chitetezo ndi kumasuka kwa valve ndi kutsekedwa kwathunthu, ndipo panthawi imodzimodziyo kumapereka chitsimikizo cha pa intaneti cha kutsekedwa kolimba kwa valve.
Makhalidwe asanu ndi limodzi a DBB plug valve
1) Valavu ndi valavu yosindikizira yogwira, yomwe imagwiritsa ntchito mawonekedwe a tambala, sadalira kukakamizidwa kwa mapaipi ndi mphamvu yakumapeto kwa kasupe, imagwiritsa ntchito kusindikiza kawiri, ndikupanga chisindikizo chodziyimira pawokha. kwa kumtunda ndi kunsi kwa mtsinje, ndipo valavu imakhala yodalirika kwambiri.
2) Mapangidwe apadera a woyendetsa ndi njanji yowongoka ngati L amalekanitsa chisindikizo cha valavu kuchokera kumalo osindikizira thupi la valve panthawi ya ntchito ya valve, kuthetsa kuvala kwa chisindikizo.Mawotchi opangira ma valve ndi ang'onoang'ono, oyenera kugwiritsidwa ntchito pafupipafupi, ndipo valavu imakhala ndi moyo wautali wautumiki.
3) Kukonza pa intaneti kwa valve ndikosavuta komanso kosavuta.Valve ya DBB ndiyosavuta mwadongosolo ndipo imatha kukonzedwa popanda kuichotsa pamzere.Chivundikiro cha pansi chikhoza kuchotsedwa kuti chichotse slide kuchokera pansi, kapena chivundikiro cha valve chikhoza kuchotsedwa kuchotsa slide pamwamba.Valavu ya DBB ndi yaying'ono kukula kwake, yopepuka kulemera kwake, yabwino kusokoneza ndi kukonza, yabwino komanso yachangu, ndipo safuna zida zazikulu zonyamulira.
4) Dongosolo lothandizira matenthedwe a DBB plug valve imangotulutsa mphamvu ya valavu ya valve pamene kupsinjika kwachitika, kupangitsa kuyang'ana pa intaneti ndikutsimikizira kusindikiza ma valve.
5) Chizindikiro cha nthawi yeniyeni ya malo a valve, ndi singano yowonetsera pa tsinde la valve ikhoza kuyankha momwe valve ikuyendera.
6) Chimbudzi chapansi pamadzi chikhoza kutulutsa zonyansa, ndipo chimatha kutulutsa madzi muzitsulo za valve m'nyengo yozizira kuti thupi la valve lisawonongeke chifukwa cha kuwonjezeka kwa voliyumu pamene madzi amaundana.
3. Kulephera kusanthula valavu ya pulagi ya DBB
1) Pini yowongolera yathyoka.Pini yolondolerayo imakhazikika pa bulaketi yokhala ndi tsinde la valavu, ndipo mbali inayo imayikidwa pa kalozera wooneka ngati L pa tsinde la valve.Pamene tsinde la valve limasintha ndi kuzimitsa pansi pa machitidwe a actuator, pini yowongolera imaletsedwa ndi groove yotsogolera, kotero valavu imapangidwa.Vavu ikatsegulidwa, pulagi imakwezedwa mmwamba ndiyeno imazunguliridwa ndi 90 °, ndipo valavu ikatsekedwa, imayendetsedwa ndi 90 ° ndiyeno imakanikizidwa pansi.
Zochita za tsinde la valavu pansi pa pini yolondolera zitha kuwola kuti zisinthe mozungulira ndikuyimirira mmwamba ndi pansi.Vavu ikatsegulidwa, tsinde la valve limayendetsa poyambira ngati L kuti liwuke molunjika mpaka pini yolondolera ifika pamalo otembenuka a groove wooneka ngati L, liwiro loyimirira limatsika mpaka 0, ndipo njira yopingasa imathandizira kuzungulira;valavu ikatsekedwa, tsinde la valve limayendetsa poyambira ngati L kuti lizizungulira molunjika mpaka Pini yowongolera ikafika pamalo otembenuka a groove yooneka ngati L, kutsika kopingasa kumakhala 0, ndipo njira yowongoka imathamanga ndikusindikiza. pansi.Chifukwa chake, pini yolondolerayo imakhala ndi mphamvu yayikulu kwambiri ikatembenuka mozungulira ngati L, komanso ndiyosavuta kulandila mphamvu munjira zopingasa komanso zopindika nthawi imodzi.Zikhomo zosweka.
Pini yowongolera ikathyoledwa, valavu imakhala pamalo pomwe pulagi ya valavu idakwezedwa koma pulagi ya valavu sinatembenuzidwe, ndipo m'mimba mwake wa pulagi ya valavu ndi perpendicular to the diameter of the valve body.Mpata umadutsa koma umalephera kufika pamalo otseguka.Kuchokera pakuyenda kwa sing'anga yodutsa, imatha kuweruzidwa ngati pini yowongolera ma valve yasweka.Njira ina yoweruzira kusweka kwa pini yowongolera ndikuwona ngati pini yowonetsera yokhazikika kumapeto kwa tsinde la valve imatsegulidwa pamene valavu yasinthidwa.Kasinthasintha.
2) Kuyika zonyansa.Popeza pali kusiyana kwakukulu pakati pa pulagi ya valavu ndi valavu ya valve ndipo kuya kwa valavu kumbali yolunjika kumakhala kochepa kusiyana ndi payipi, zonyansa zimayikidwa pansi pa valve pamene madzi akudutsa.Vavu ikatsekedwa, pulagi ya valve imatsitsidwa pansi, ndipo zonyansa zomwe zayikidwa zimachotsedwa ndi pulagi ya valve.Imaphwanyidwa pansi pa valavu ya valve, ndipo pambuyo poyikapo kangapo ndikuphwanyidwa, wosanjikiza wa "sedimentary rock" wosanjikiza wonyansa amapangidwa.Pamene makulidwe a wosanjikiza wosadetsedwa amaposa kusiyana pakati pa pulagi ya valve ndi mpando wa valve ndipo sungathenso kuponderezedwa, zidzalepheretsa kugunda kwa pulagi ya valve.Chochitacho chimapangitsa kuti valavu isatseke bwino kapena kuwonjezereka.
(3) Kutuluka kwamkati kwa valve.Kutuluka kwamkati kwa valve ndiko kuvulaza koopsa kwa valve yotseka.Kutuluka kwamkati kwambiri, kumachepetsa kudalirika kwa valve.Kutuluka kwamkati kwa valve yosinthira mafuta kungayambitse ngozi zazikulu zamafuta, kotero kusankha kwa valve yosinthira mafuta kuyenera kuganiziridwa.Ntchito yotulukira mkati mwa valavu ndi zovuta za chithandizo chamkati chamkati.Valve ya DBB plug ili ndi njira yosavuta komanso yosavuta yodziwira kutulutsa kwamkati ndi njira yochizira yotuluka mkati, ndipo mawonekedwe a valve osindikizira awiri a DBB plug valve amathandizira kuti ikhale ndi ntchito yodalirika yodulira, kotero mafuta valavu yosinthira zinthu yapaipi yamafuta oyeretsedwa imagwiritsa ntchito pulagi ya DBB.
DBB plug valavu yamkati yotulukira njira yodziwira: tsegulani valavu yopumira, ngati sing'anga ina ituluka, imasiya kutuluka, zomwe zimatsimikizira kuti valavu ilibe kutayikira mkati, ndipo sing'anga yotuluka ndi njira yopumira yomwe imapezeka mu valve plug. ;ngati pali kutuluka kwapakati kosalekeza, Zimatsimikiziridwa kuti valavu ili ndi kutuluka kwa mkati, koma n'zosatheka kuzindikira kuti ndi mbali iti ya valve yomwe ili mkati.Pokhapokha pochotsa valavu tingathe kudziwa momwe kutayikira kwamkati kumachitikira.Njira yodziwira kutayikira kwamkati ya valavu ya DBB imatha kuzindikira mwachangu pamalopo, ndipo imatha kuzindikira kutulutsa kwamkati kwa valavu mukasinthana pakati pamitundu yosiyanasiyana yamafuta, kuti mupewe ngozi zamtundu wamafuta.
4. Kuchotsa ndi kuyang'anitsitsa valavu ya pulagi ya DBB
Kuyang'anira ndi kukonza kumaphatikizanso kuyang'anira pa intaneti komanso kuyang'anira kunja kwa intaneti.Panthawi yokonza pa intaneti, thupi la valve ndi flange zimasungidwa paipi, ndipo cholinga chokonzekera chimatheka ndikuchotsa zigawo za valve.
Kuphatikizika ndi kuyang'ana kwa valavu ya pulagi ya DBB kumagawidwa m'njira yapamwamba ya disassembly ndi njira yotsika yotsika.Njira yakumtunda ya disassembly makamaka imayang'ana pamavuto omwe amapezeka kumtunda kwa thupi la valve monga tsinde la valve, mbale yophimba pamwamba, actuator, ndi pulagi ya valve.Njira yochotseratu imayang'ana makamaka pamavuto omwe ali kumapeto kwa zisindikizo, ma disc a valve, mbale zophimba pansi, ndi ma valve otayira.
Njira yotulutsira m'mwamba imachotsa cholumikizira, mkono wa tsinde la valavu, cholumikizira chosindikizira, ndi chivundikiro chapamwamba cha valavu, kenako ndikutulutsa tsinde la valve ndi pulagi ya valve.Mukamagwiritsa ntchito njira yopita pamwamba, chifukwa cha kudula ndi kukanikiza kwa chisindikizo chonyamulira panthawi ya kukhazikitsa ndi kung'ambika kwa tsinde la valve panthawi yotsegula ndi kutseka kwa valve, sichingagwiritsidwe ntchito.Tsegulani valavu pamalo otseguka pasadakhale kuti pulagi ya valavu isachotsedwe mosavuta pomwe ma disc a valve kumbali zonse ziwiri amapanikizidwa.
Njira yochotseramo imangofunika kuchotsa chivundikiro chapansi chapansi kuti chiwongolere mbali zofananira.Pogwiritsira ntchito njira yowonongeka kuti muyang'ane diski ya valve, valavu silingakhoze kuikidwa pamalo otsekedwa mokwanira, kuti mupewe diski ya valve singakhoze kuchotsedwa pamene valavu ikukakamizidwa.Chifukwa cha kugwirizana kosunthika pakati pa diski ya valve ndi pulagi ya valve kupyolera mu dovetail groove, chivundikiro chapansi sichikhoza kuchotsedwa nthawi imodzi pamene chivundikiro chapansi chikuchotsedwa, kuti ateteze kusindikiza pamwamba kuti zisawonongeke chifukwa cha kugwa kwa valve. diski.
Njira yapamwamba ya disassembly ndi njira yapansi ya disassembly ya DBB valve sichiyenera kusuntha thupi la valve, kotero kukonza pa intaneti kungapezeke.Njira yochepetsera kutentha imayikidwa pa thupi la valve, kotero njira yodutsa pamwamba ndi njira yochepetsera yochepetsera sizifunikira kusokoneza njira yothandizira kutentha, yomwe imapangitsa kuti ntchito yokonza ikhale yosavuta komanso imathandizira kukonza bwino.Kuchotsa ndi kuyang'anitsitsa sikuphatikizapo thupi lalikulu la thupi la valve, koma valavu iyenera kutsekedwa mokwanira kuti sing'angayo isasefukire.
5. Mapeto
Kuzindikira zolakwika za valavu ya pulagi ya DBB ndikodziwikiratu komanso pafupipafupi.Kutengera ntchito yake yabwino yodziwira kutayikira kwamkati, vuto la kutayikira kwamkati limatha kuzindikirika mwachangu, ndipo mawonekedwe osavuta komanso osavuta kugwiritsa ntchito ndikuwongolera amatha kuzindikira kukonza nthawi ndi nthawi.Chifukwa chake, njira yowunikira ndi kukonza ma valve a pulagi a DBB yasinthanso kuchoka kumayendedwe akale pambuyo pa kulephera kupita kumayendedwe osiyanasiyana oyendera ndi kukonza omwe amaphatikiza kukonzanso kusanachitike, kukonza zochitika pambuyo pake komanso kukonza nthawi zonse.
Nthawi yotumiza: Dec-22-2022