Kuyika, Ntchito ndi Kukonza Buku-Mavavu Agulugufe Amagetsi Atatu

1. Kukula

Mafotokozedwewa akuphatikiza Normal Diameter NPS 10 ~ NPS48, Normal Pressure Class (150LB ~ 300LB) flanged katatu eccentric zitsulo seal butterfly mavavu.

2. Mafotokozedwe Akatundu

2.1 Zofunikira zaukadaulo

2.1.1 Muyezo wa Mapangidwe ndi Kupanga: API 609

2.1.2 Kutha mpaka kutha kugwirizana muyezo: ASME B16.5

2.1.3 Muyezo wa nkhope ndi nkhope: API609

2.1.4 The kuthamanga-kutentha kalasi muyezo: ASME B16.34

2.1.5 Kuyendera ndi kuyesa (kuphatikiza kuyesa kwa hydraulic): API 598

2.2Product General

Valavu yagulugufe yamitundu itatu yokhala ndi kusindikiza zitsulo ziwiri ndi imodzi mwazinthu zazikulu za BVMC, ndipo imagwiritsidwa ntchito kwambiri muzitsulo, mafakitale opepuka, mphamvu yamagetsi, petrochemical, njira yamagetsi ndi zina.

3. Makhalidwe ndi Application

Kapangidwe kake ndi katatu eccentric ndi zitsulo akukhala. Ili ndi ntchito yabwino yosindikiza pansi pa kutentha kwa chipinda ndi / kapena kutentha kwakukulu. Voliyumu yaying'ono, kulemera kopepuka, kutsegula ndi kutseka mosinthasintha komanso moyo wautali wogwira ntchito ndizo zabwino zake zoonekeratu poyerekeza ndi ma valve a zipata kapena ma valve a globe. Amagwiritsidwa ntchito kwambiri muzitsulo, mafakitale opepuka, mphamvu yamagetsi, petrochemical, njira yamagalasi yamagalasi ndi madera ena, kugwiritsa ntchito chitetezo chodalirika, valavu ndiye chisankho chabwino kwambiri chamakampani amakono.

4.Kapangidwe

4.1 Valavu yagulugufe yotsekera katatu yachitsulo monga momwe zasonyezedwera pa Sketch 1

Chithunzi 1 Mavavu agulugufe agulugufe atatu otsekereza zitsulo

5. Mfundo yosindikiza:

Chithunzi 2 Mavavu agulugufe osindikizira zitsulo patatu ndi chinthu chodziwika bwino cha BVMC, monga zikuwonetsedwa pachithunzi 2.

(a)Kapangidwe Makhalidwe: Malo ozungulira a gulugufe mbale (ie valavu pakati) ndi kupanga kukondera A ndi gulugufe kusindikiza pamwamba, ndi kukondera B ndi pakati mzere wa valavu thupi. Ndipo Angle βbe idapangidwa pakati pa mzere wapakati wa nkhope ya chisindikizo ndi thupi la mpando (ie, mzere wa axial wa thupi)

(b)Mfundo yosindikiza: Pogwiritsa ntchito valavu ya butterfly eccentric iwiri, valve ya butterfly ya katatu inapanga Angleβ pakati pa malo apakati pa mpando ndi thupi. Zotsatira za kukondera zikuwonetsedwa mu chithunzi 3 chodutsa. Pamene valavu yagulugufe yosindikizira katatu ili yotseguka, malo osindikizira agulugufe adzasiyanitsidwa ndi mpando wosindikizira wa vavu. Ndipo padzakhala chilolezo γ pakati pa nkhope yosindikizira ya gulugufe ndi malo osindikizira thupi mofanana ndi valavu yamagulugufe awiri. Monga momwe tawonetsera mu chithunzi 4, chifukwa cha mapangidwe a β angle, anglesβ1ndi β2 idzapanga pakati pa mzere wa tangent wa disc rotation track ndi kusindikiza mpando wa valve pamwamba. Potsegula ndi kutseka chimbale, gulugufe mbale kusindikiza pamwamba pang'onopang'ono kulekanitsa ndi yaying'ono, ndiyeno kuthetsa kwathunthu mawotchi kuvala ndi abrasion. Mukathyola valavu, malo osindikizira a disc adzalekanitsidwa nthawi yomweyo ndi mpando wa valve. Ndipo pokhapo nthawi yotsekedwa kwathunthu, chimbalecho chidzakhazikika pampando. Monga momwe chithunzi 4 chikusonyezera, chifukwa cha mapangidwe a ngodya β1 ndi β2, pamene valavu ya butterfly yatsekedwa, kupanikizika kwa chisindikizo kumapangidwa ndi makina a valve shaft drive torque osati kusinthasintha kwa mpando wa butterfly valve. Sizingathetse mwayi wochepetsera chisindikizo komanso kulephera komwe kumachitika chifukwa cha ukalamba wapampando, kuyenda kwa kuzizira, zinthu zosavomerezeka zotanuka, ndipo zitha kusinthidwa momasuka kudzera pama torque agalimoto, kotero kuti katatu eccentric butterfly valve kusindikiza magwiridwe antchito ndi moyo wogwira ntchito udzakhala wopambana. bwino.

Chithunzi 2 Triple eccentric double-way zitsulo zomata valavu yagulugufe

Chithunzi 3 Chithunzi cha valavu yagulugufe yotsekera pawiri zitsulo patatu pamalo otseguka

Chithunzi 4 Chithunzi cha valavu yagulugufe yotsekera katatu yachitsulo yotsekera pafupi

6.1Kuyika

6.1.1 Kuyang'ana mosamala zomwe zili mu nameplate ya valve musanayike, onetsetsani kuti mtundu, kukula, mipando ndi kutentha kwa valve zikugwirizana ndi ntchito ya pipeline.

6.1.2 Kuyang'ana makamaka mabawuti onse olumikizana musanayike, kuwonetsetsa kuti akulimba mofanana. Ndi kuona ngati psinjika ndi kusindikiza kulongedza katundu.

6.1.3 Kuwunika valavu yokhala ndi zizindikiro zoyenda, monga momwe zimayendera,

Ndipo kukhazikitsa valavu kuyenera kukhala molingana ndi zomwe zikuyenda.

6.1.4 Chitolirocho chiyenera kutsukidwa ndikuchotsa mafuta ake, kuwotcherera slag ndi zonyansa zina musanayike.

6.1.5 Vavu iyenera kutulutsidwa kunja pang'onopang'ono, kuletsa kuponyera ndi kuponya.

6.1.6 Tiyenera kuchotsa chivundikiro cha fumbi kumapeto kwa valve pamene tikuyika valavu.

6.1.7 Mukayika valavu, makulidwe a flange gasket ndi oposa 2 mm ndi kuuma kwa m'mphepete mwa nyanja kuposa 70 PTFE kapena gasket yopota, flange ya ma bolts ogwirizanitsa ayenera kumangirira diagonally.

6.1.8 Kutayikira kwa kulongedza kungayambitsidwe ndi kusintha kwa kugwedezeka ndi kutentha kwa kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake.

6.1.9 Asanakhazikitse valve, malo a pneumatic actuator ayenera kukhazikitsidwa, kuti agwire ntchito yopangira ndi kukonza mosayembekezereka. Ndipo actuator iyenera kuyesedwa ndikuyesedwa isanalowe mukupanga.

6.1.10 Kuyang'anira komwe kukubwera kuyenera kukhala molingana ndi miyezo yoyenera. Ngati njirayo si yolondola kapena yopangidwa ndi anthu, Kampani ya BVMC siyitenga udindo uliwonse.

6.2Kusungirako ndiMkukonzekera 

6.2.1 Mapeto ake ayenera kuphimbidwa ndi chivundikiro cha fumbi m'chipinda chowuma ndi mpweya wabwino, kuti zitsimikizire kuyera kwa ma valve.

6.2.2 Pamene valavu yosungiramo nthawi yayitali imagwiritsidwanso ntchito, kulongedza kuyenera kufufuzidwa ngati kuli kosayenera ndikudzaza mafuta odzola m'madera ozungulira.

6.2.3 Mavavu ayenera kugwiritsidwa ntchito ndi kusungidwa mu nthawi ya chitsimikizo (malinga ndi mgwirizano), kuphatikizapo m'malo mwa gasket, kulongedza etc.

6.2.4 Mikhalidwe yogwirira ntchito ya valve iyenera kukhala yoyera, chifukwa imatha kuwonjezera moyo wake wautumiki.

6.2.5 Mavavu amayenera kuyang'anira ndi kukonza nthawi zonse pogwira ntchito kuti atetezedwe ku dzimbiri ndikuwonetsetsa kuti zida zili bwino.

Ngati sing'angayo ndi madzi kapena mafuta, ndiye kuti ma valve ayenera kuyang'aniridwa ndi kusamalidwa miyezi itatu iliyonse. Ndipo ngati sing'angayo ikuwononga, ndiye kuti ma valve onse kapena gawo limodzi la ma valve ayenera kuyang'aniridwa ndikusamalidwa mwezi uliwonse.

6.2.6 Valavu yotsitsimutsa mpweya iyenera kukhetsa pafupipafupi, kutulutsa koyipa, m'malo mwazosefera. Kusunga mpweya woyera ndi youma kupewa kuipitsa pneumatic zigawo zikuluzikulu, chifukwa cha kulephera. (Kuwona "mpneumatic actuatorntchito malangizo“)

6.2.7 Silinda, zigawo za pneumatic ndi mapaipi ziyenera kufufuzidwa mosamala komanso nthawi zonsekuletsakutayikira kwa gasi (Kuwona "woyambitsa pneumaticntchito malangizo“)

6.2.8 Pokonza mavavu ayenera kutsuka ziwalo kachiwiri, kuchotsa thupi lachilendo, madontho ndi dzimbiri banga. Kusintha ma gaskets owonongeka ndi kulongedza, kusindikiza pamwamba kuyenera kukhazikitsidwa. Mayeso a hydraulic ayenera kuchitidwanso pambuyo pokonza, oyenerera angagwiritse ntchito.

6.2.9 Gawo la ntchito ya valve (monga tsinde ndi chosindikizira) liyenera kukhala laukhondo ndikupukuta fumbi kuti litetezedwe.kulimbanandi dzimbiri.

6.2.10 Ngati pali kutayikira pakulongedza ndipo mtedza wonyamula zonyamula uyenera kumangirizidwa mwachindunji kapena kusintha kulongedza molingana ndi momwe zinthu ziliri. Koma Sizololedwa kusintha kulongedza ndi kukakamiza.

6.2.11 Ngati kutayikira kwa valve sikungathetsedwe pa intaneti kapena pazovuta zina zogwirira ntchito, pamene kuchotsa valavu kuyenera kukhala motsatira njira zotsatirazi:

1. Samalani ndi chitetezo: kuti mutetezeke, kuchotsa valavu kuchokera pachitoliro choyamba muyenera kumvetsetsa chomwe sing'anga mu payipi ndi. Muyenera kuvala zida zoteteza ogwira ntchito kuti muteteze sing'anga mkati mwa kuwonongeka kwa mapaipi. Pa nthawi yomweyo kuonetsetsa kuti payipi sing'anga kuthamanga kale. Vavu iyenera kutsekedwa kwathunthu musanachotse valavu.
2. Kuchotsa chipangizo cha pneumatic (kuphatikiza mkono wolumikizira, Kuwona "choyambitsa pneumaticntchito malangizo") ayenera kusamala pogwira ntchito kuti apewe kuwonongeka kwa tsinde ndi chipangizo cha pneumatic;
3. Mphete yosindikizira ya disc ndi mpando ziyenera kufufuzidwa ngati zili ndi zokanda pamene valavu ya butterfly yatseguka. Ngati pali chotupa pang'ono pampando, chitha kugwiritsa ntchito nsalu ya emery kapena mafuta pamalo osindikizira kuti asinthe. Ngati zikande zochepa zakuya zikuoneka, miyeso yoyenera iyenera kuchitidwa kukonzanso, valavu ya butterfly ingagwiritsidwe ntchito pambuyo poyesedwa oyenerera.
4. Ngati tsinde liri ndi kutayikira, chotupacho chiyenera kuchotsedwa, ndikuyang'ana tsinde ndi kunyamula pamwamba, ngati tsinde liri ndi zokopa, valavu iyenera kusonkhana pambuyo pokonza. ngati kulongedza kwawonongeka, kulongedza kuyenera kusinthidwa.
5. Ngati silinda ili ndi zovuta, imayang'ana zida za pneumatic, kuwonetsetsa kuti njira ya gasi ikuyenda komanso kuthamanga kwa mpweya, valavu yosinthira ma elekitirodi ndi yachilendo. Kuwona "mpneumatic actuatorntchito malangizo“)
6. Pamene mpweya kuika mu pneumatic chipangizo, izo amaonetsetsa kuti yamphamvu palibe mkati ndi kunja alibe kutayikira. Ngati pneumatic chipangizo chisindikizo kuonongeka kungachititse kuti utachepa ntchito kuthamanga makokedwe, kuti kukumana gulugufe valavu kutsegula ndi kutseka ntchito, ayenera kulabadira kuyendera pafupipafupi ndi m'malo mbali.

Vavu ya butterfly ya pneumatic mbali zina sizikonza. Ngati kuwonongeka kwambiri, ayenera kulankhula fakitale kapena kutumiza ku fakitale kukonza.

6.2.12 Mayeso

Valavuyo idzakhala yoyezetsa magazi pambuyo poti valavu yakonza mayesowo mogwirizana ndi miyezo yoyenera.

6.3 Malangizo ogwiritsira ntchito

6.3.1 Valavu yoyendetsedwa ndi pneumatic yokhala ndi dalaivala ya silinda idzapangidwa kuti diski yozungulira 90 ° itsegule kapena kutseka valavu.

6.3.2 Mayendedwe otseguka a gulugufe wopangidwa ndi pneumatic actuated adzakhala ndi chizindikiro cha malo pa chipangizo cha pneumatic.

6.3.3 Vavu ya butterfly yokhala ndi truncation ndi kusintha zochita ingagwiritsidwe ntchito ngati kusintha kwamadzimadzi ndi kuwongolera kuyenda. Nthawi zambiri saloledwa kupitirira kukakamiza - chikhalidwe cha malire a kutentha kapena kusinthasintha pafupipafupi komanso kutentha

6.3.4 valavu ya butterfly imatha kukana kusiyanasiyana kwa kuthamanga kwambiri, musalole kuti valavu yagulugufe itsegulidwe pansi pa kupanikizika kwakukulu ngakhale kusiyana kwakukulu kumapitirirabe kuzungulira. Apo ayi zingayambitse kuwonongeka, kapena ngozi yaikulu ya chitetezo ndi kuwonongeka kwa katundu.

6.3.5 Ma valve a pneumatic amagwiritsa ntchito mobwerezabwereza, ndipo kayendetsedwe ka kayendetsedwe kake ndi kayendedwe ka mafuta ziyenera kufufuzidwa nthawi zonse.

6.3.6 Chida cha mpweya wozungulira koloko kuti valavu ya agulugufe atsekeke, mobwerezabwereza kuti valavu ya gulugufe itseguke.

6.3.7 Pogwiritsa ntchito valavu ya butterfly ya pneumatic iyenera kulabadira kuti mpweya ndi woyera, mphamvu ya mpweya ndi 0.4 ~ 0.7 Mpa. Kusunga ndime mpweya wotseguka, osaloledwa kutsekereza mpweya wolowera ndi kutuluka kwa mpweya. Isanayambe kugwira ntchito, iyenera kulowa mu mpweya woponderezedwa kuti ione ngati kayendedwe ka gulugufe wa pneumatic ndi wabwinobwino. tcherani khutu ku pneumatic butterfly valavu yotseguka kapena yotsekedwa, ngakhale chimbale chili chotseguka kapena chotsekedwa. Kutchera khutu ku malo a valve ndi malo a silinda ndi ofanana.

6.3.8 Kapangidwe ka pneumatic actuators crank mkono ndi mutu wamakona anayi, womwe umagwiritsidwa ntchito pa chipangizo chamanja. Ngozi ikachitika, imatha kuchotsa chitoliro cha mpweya mwachindunji ndi wrench kuti ntchito yamanja ichitike.

7. Zolakwa, zifukwa ndi njira zothetsera (Onani Tabu 1)

Tabu 1 Mavuto omwe angakhalepo, zoyambitsa ndi zothetsera

Zindikirani: Ogwira ntchito yosamalira ana ayenera kukhala ndi chidziwitso choyenera komanso luso.