Selelekela ho li-valve tsa Butterfly
Li-valve tsa butterfly
Belofo ea Butterfly ke valve ea ho potoloha ha quarter-turn, e sebelisetsoang ho emisa, ho laola le ho qala ho phalla.
Li-valve tsa butterfly li bonolo ebile li potlakile ho bula. Ho potoloha ha 90 ° ho fana ka ho koala ka ho feletseng kapa ho bula valve. Li-valve tse kholo tsa Butterfly hangata li na le seo ho thoeng ke lebokose la gear, moo lebili la letsoho ka li-gear le hokahaneng le kutu. Sena se nolofatsa ts'ebetso ea valve, empa ka litšenyehelo tsa lebelo.
Mefuta ea li-valve tsa Butterfly
Li-valve tsa serurubele li na le 'mele o mokgutshwane o chitja, disc e chitja, litulo tsa tšepe-tšepe kapa tse bonolo, li-bearings tsa shaft tse ka holimo le tse ka tlase, le lebokose la lintho. Kaho ea 'mele oa valve ea Butterfly e fapana. Moralo o sebelisoang hangata ke mofuta oa liphaephe o lekanang lipakeng tsa li-flange tse peli. Mofuta o mong, o entsoeng ka sephaphatha, o etsoa pakeng tsa mapheo a mabeli ka liboutu tse kopanyang mapheo a mabeli 'me li feta masobeng a lekeseng le ka ntle la valve. Li-valve tsa serurubele li fumaneha ka lipheletso tse nang le flanged, khoele le butt, empa ha li sebelisoe hangata.
Li-valve tsa butterfly li na le melemo e mengata ho feta heke, globe, plug, le li-valve tsa bolo, haholo bakeng sa lisebelisoa tse kholo tsa li-valve. Ho boloka boima ba 'mele, sebaka, le litšenyehelo ke melemo e totobetseng ka ho fetisisa. Litšenyehelo tsa tlhokomelo hangata li tlaase hobane ho na le palo e fokolang ea likarolo tse tsamaeang 'me ha ho na lipokotho tsa ho tšoara maro.
Li-valve tsa serurubele li loketse hantle bakeng sa ho sebetsana le phallo e kholo ea metsi kapa likhase tse nang le likhatello tse tlase haholo le ho sebetsana le li-slurries kapa lino tse nang le lintho tse ngata tse tiileng tse emisitsoeng.
Li-valve tsa butterfly li hahiloe holim'a molao-motheo oa damper ea pipe. Karolo ea taolo ea phallo ke disk e ka bang bophara bo lekanang le bophara bo ka hare ba phala e kopaneng, e potolohang holim'a axis e otlolohileng kapa e tšekaletseng. Ha disk e lutse e bapile le phaephe e mathang, valve e buloa ka botlalo. Ha disk e atamela boemo ba perpendicular, valve e koetsoe. Maemo a mahareng, bakeng sa merero ea throttling, a ka sireletsoa sebakeng ka lisebelisoa tsa ho notlela matshwao.
Butterfly valve Seat Construction
Ho emisa ho phalla ho etsoa ke "valve disk" e tiisang setulong se ka hare ho bophara ba 'mele oa valve. Li-valve tse ngata tsa Butterfly li na le setulo sa elastomeric seo disk e tiisang ho sona. Li-valve tse ling tsa Butterfly li na le tlhophiso ea selikalikoe sa tiiso e sebelisang lesale la clamp-le-backing-ring holim'a selikalikoe sa rabara se motsu. Moralo ona o thibela extrusion ea O-rings.
Meetsong ea pele, diski ea tšepe e ne e sebelisetsoa ho tiisa setulong sa tšepe. Tokisetso ena ha ea fana ka koalo e tiileng ea ho lutla, empa e fane ka koalo e lekaneng lits'ebetsong tse ling (ke hore, likhoele tsa ho tsamaisa metsi).
Kaho ea 'mele ea Butterfly valve
Kaho ea 'mele ea li-valve tsa butterfly e fapana. E theko e boima ka ho fetisisa ke mofuta oa liphaephe o kenang lipakeng tsa liphaephe tse peli. Mofuta o mong, o entsoeng ka liphaephe, o beoa sebakeng se pakeng tsa liphaephe tse peli ka liboutu tse kopanyang mapheo a mabeli ebe li feta masobeng a lekeseng le ka ntle la valve. Li-valve tsa butterfly li fumaneha ka lipheletso tse tloaelehileng tse nang le li-flanged bakeng sa ho koala liphaephe tsa liphaephe, 'me li hahiloe qetellong.
Setulo Disk le Stem ea valve ea Butterfly
The stem le disk bakeng sa valve ea Butterfly ke likotoana tse arohaneng. Disk e borehile ho amohela kutu. Mekhoa e 'meli e sebelisetsoa ho boloka disk ho stem e le hore disk e potoloha ha kutu e fetoha. Mokhoa oa pele, disk e borehile 'me e sirelelitsoe ho stem ka liboutu kapa likhoele. Mokhoa o mong o kenyelletsa ho teneha disk joalo ka pele, ebe ho bopa kutu e kaholimo ho lekana le kutu e nang le sekoere kapa sa hex. Mokhoa ona o lumella disk hore e "phaphametse" 'me e batle setsi sa eona setulong. Ho tiisoa ka mokhoa o ts'oanang ho phethiloe 'me li-fasteners tse ka ntle li tlosoa. Mokhoa ona oa ho kopanya o molemo tabeng ea li-disk tse koahetsoeng le lits'ebetsong tse senyang.
E le hore disk e ts'oaroe sebakeng se nepahetseng, kutu e tlameha ho fetela ka nģ'ane ho tlase ea disk 'me e kene ka har'a bushing e ka tlaase ho' mele oa valve. Sehlahla se le seng kapa tse peli tse tšoanang li haufi le karolo e ka holimo ea kutu. Lihlahla tsena li tlameha ho hanana le mecha ea phatlalatso e tšoaroang kapa e tiisitsoe e le hore mecha ea litaba e senyang e se ke ea kopana le bona.
Litiiso tsa Stem li finyelloa ka ho paka ka lebokoseng le tloaelehileng la ho kenya lintho kapa ka litiiso tsa O-ring. Bahlahisi ba bang ba li-valve, haholo-holo ba sebetsanang le lintho tse senyang, ba beha lesela la stem ka hare ho valve e le hore ho se ke ha e-ba le ntho e tšoaroang ke valve e ka kopanang le kutu. Haeba ho sebelisoa lebokose la lintho kapa O-ring e ka ntle, mokelikeli o fetang ka valve o tla kopana le stem ea valve.
Tšebeliso e tloaelehileng ea li-valve tsa Butterfly
Sesepa sa Butterfly se ka sebelisoa litšebeletsong tse ngata tse fapaneng tsa mokelikeli 'me se sebetsa hantle lits'ebetsong tse senyehileng. Tse latelang ke tse ling tse tloaelehileng tsa li-valve tsa Butterfly:
- Metsi a pholileng, moea, likhase, tšireletso ea mollo joalo-joalo.
- Litšebeletso tse bonolo le tse joalo
- Tshebeletso ya vacuum
- Litšebeletso tsa metsi le mouoane tse nang le khatello e phahameng le mocheso o phahameng
Melemo ea li-valve tsa Butterfly
- Moralo o kopaneng o hloka sebaka se fokolang haholo, ha o bapisoa le li-valve tse ling
- Boima bo bobebe
- Ts'ebetso e potlakileng e hloka nako e nyane ho bula kapa ho koala
- E fumaneha ka boholo bo boholo haholo
- Ho theoha ha khatello e tlase le ho hlaphoheloa ha khatello e phahameng
Mefokolo ea li-valve tsa Butterfly
- Tšebeletso ea throttling e lekanyelitsoe khatellong e tlase ea phapang
- Cavitation le phallo e khangoang ke lintho tse peli tse ka amehang
- Tsamaiso ea disc ha e laoloe ebile e angoa ke moferefere oa phallo
Vanessa triple offset butterfly valve
Maikutlo a sengoli…
Li-gaskets le ho kenya li-valve tsa Butterfly
Ka la 14 Loetse 2012 ke ile ka fumana lengolo-tsoibila le nang le maikutlo a latelang:
Ke na le tlhahiso ho uena eo ke nahanang hore ha e buuoe sebakeng sa hau sa marang-rang, e leng ho hlalosa hore na ke mofuta ofe oa gasket o ka sebelisoang bakeng sa li-valve tse fapaneng tsa Butterfly (Mofuta oa E kapa F) le hore na ke mofuta ofe oa li-flange tse lokelang ho sebelisoa (RF kapa FF), hape le ha gasket e sa hlokahale hobane li-valve tsa Butterfly li na le li-gaskets tse bohlokoa. Ke fumane hore hangata ho na le pherekano tabeng ena.
Tlhokomelo e ntle, kahoo e latelang:
Litaelo tsa ho kenya ho tsoa ho morekisi oa li-valve tsa Butterfly:
Valve e etselitsoe ho sebelisoa pakeng tsa mefuta eohle ea Flat kapa e phahamisitsoeng ea sefahleho.
U SE KE UA SEBELISA FLANGE GASKETS.Moralo oa li-valve tsa Butterfly o fokotsa tlhoko ea li-gaskets. Bakeng sa ho kenngoa hantle, sebaka se pakeng tsa li-flange se tlameha ho lekana ho lumella ho kenngoa ha valve ntle le ho senya tiiso ea flange. Ela hloko hore moeli oa ho tiisa daeke o tsamaellana le sephara sa shaft. Fetola stem ho beha disc ka hare ho 'mele, beha valve pakeng tsa li-flange le ho tiisa liboutu ka letsoho.
PHETHELE BULENYANEvalve counterclockwise ho hlahloba hore na disc clearance e lekaneng.
BUSETSA DISC HO 10% MAEMO A BOLOTSENG'me u tšele liboutu tsohle, hape u hlahlobe hore na ho na le disc clearance e lekaneng.
E fosahetse
Disc e maemong a koetsoeng mme li-Gaskets li kentsoe
pakeng tsa valve le mating flanges
E nepahetse
Ha ho li-gaskets tsa flange tse sebelisitsoeng le Disc ho
e batlang e koetsoe.
Taelo e 'ngoe ea ho kenya ho tsoa ho morekisi oa li-valve tsa Butterfly:
TLHOKOMELO
Li-gaskets tse latelang li lokela ho sebelisoa bakeng sa ho kenya li-valve liphaepheng.
- Mofuta oa Gasket
PTFE gasket e matlafalitsoeng (gasket e nang le Jacketed, Spiral Wound gasket kapa Metal gasket e ke ke ea kenngoa.) - Boemo ba Gasket
Litekanyo tsa gasket li lokela ho lumellana le ASME B16.21. (Botenya bo tlase ba gasket ke 3mm.)
Li-valve ha li khone ho kenngoa ho li-stub ends. Valve e tlameha ho kenngoa ho latela motsu, e fanoeng ka lehlakoreng la flange e ntseng e eketseha ea opareitara. Motsu o tlameha ho supa ho tloha lehlakoreng le phahameng la khatello ho ea lehlakoreng le tlaase la khatello sebakeng se koetsoeng sa valve.
Kahoo, ho kgothaletswa ho latela litaelo tsa mofani oa li-valve tsa Butterfly!
Ho qoba mathata ka li-valve tsa Butterfly
Boholo ba mathata ohle a nang le li-valve tsa Butterfly tšimong a amana ka kotloloho le mekhoa e mebe ea ho kenya. Ka lebaka lena, ke bohlale ho nahana ka mokhoa o motle ka ho fetisisa oa ho etsa lipeipi le ho kenya valve ka boeona.
Setulo se ka har'a valve ea Butterfly e lutseng ka mokhoa o tsitsitseng hangata se fetela lifahlehong ka bobeli tsa valve. Ka lebaka leo, ha ho hlokahale li-gaskets kaha litulo tsena li sebetsa mosebetsi oa gasket. Thepa ea setulo e fetang sefahlehong e hatelloa nakong ea ho kenya 'me e phalla ho ea bohareng ba setulo sa valve. Phetoho leha e le efe tlhophisong ena ka lebaka la ho kenya ka mokhoa o sa lokelang e ama ka ho toba tekanyo ea khatello le li-torque tsa ho lula / tse sa thekeseleng.
Ho fapana le mefuta e mengata ea li-valve, disc ea Butterfly valve e fetela ka nģ'ane ho sefahleho sa 'mele oa valve ka li-angles tse fanoeng tsa ho bula (e re, 30 ° kapa ho feta) ha e kenngoa pakeng tsa flanges. Ka hona, ke habohlokoa haholo pele ho kenya ho etsa bonnete ba hore disk e khona ho reteleha ka bolokolohi 'me e kenye li-flanges le phala-mosebetsi.
Thomello le Polokelo
- Li-discs tsa boemo ba 10% li butsoe e le hore li se ke tsa phutholoha.
- Lifahleho tsa valve e 'ngoe le e' ngoe li lokela ho koaheloa ho thibela tšenyo ea sefahleho sa setulo, moeli oa disc kapa kahare ea valve.
- Boloka ka tlung, haholo-holo ka mocheso o phelang o pakeng tsa 5°C le 30°C.
- Bula le ho koala li-valve likhoeli tse ling le tse ling tse 3.
- Li-valve tsa sekepe le tsa polokelo e le hore ho se be le meroalo e boima e sebelisoang 'meleng.
Sebaka sa Valofo
- Li-valve tsa butterfly li lokela ho kenngoa ha ho khoneha bonyane li-diameter tse 6 tsa liphaephe tse tsoang ho likarolo tse ling tsa line, ke hore li-elbows, lipompo, li-valve, joalo-joalo. Ka linako tse ling sena ha se khonehe, empa ke habohlokoa ho finyella sebaka se seholo kamoo ho ka khonehang.
- Moo valve ea Butterfly e kopantsoeng le valve ea ho hlahloba kapa pompo, boloka sebaka se lekaneng pakeng tsa bona ho netefatsa hore disc ha e kena-kenane le thepa e haufi.
Boitšoaro ba Valofo
E le molao oa monoana, li-valve tsa Butterfly li kenngoe le kutu sebakeng se otlolohileng 'me actuator e kenngoe ka holimo ka ho toba, leha ho le joalo, ho na le lisebelisoa moo kutu e lokelang ho ba e rapameng. Faele ea .pdf e ka tlase e u bolella hore na ke hobane'ng ha stem ka linako tse ling e tlameha ho behoa ka mokhoa o otlolohileng.
(Litaelo tsa ho Hloma valve ea Butterfly)
Mekhoa ea ho kenya
- Etsa bonnete ba hore lipeipi le lifahleho tsa flange li hloekile. Lisebelisoa leha e le life tse tsoang linaheng tse ling tse kang litšepe tsa tšepe, sekala sa pipe, slag ea welding, li-welding rods, joalo-joalo li ka fokotsa motsamao oa disc kapa tsa senya disc kapa setulo.
- Li-gaskets ha li hlokehe ho li-valve tse lutseng tse tsitsitseng hobane li fetela lifahlehong ka bobeli tsa valve.
- Lokisa liphaephe-mosebetsi, 'me u ala li-flanges ka ho lekaneng ho lumella' mele oa valve hore o kenngoe habonolo pakeng tsa li-flange ntle le ho kopana le liphaephe.
- Etsa bonnete ba hore disc ea valve e se e bulehile hoo e ka bang 10% e le hore e se ke ea petetsane ha e lutse ka botlalo.
- Kenya valve pakeng tsa li-flanges joalokaha ho bontšitsoe, u hlokomele hore u se ke ua senya lifahleho tsa setulo. Phahamisa valve kamehla ka masoba a ho bona kapa ka ho sebelisa letjeketjane la nylon molaleng kapa 'meleng. Le ka mohla u se ke ua phahamisa valve ka actuator kapa opareitara e behiloeng holim'a valve.
- Beha valve pakeng tsa li-flanges, e bohareng, kenya li-bolts ebe u li tiisa ka letsoho. Bula disc ka hloko, ho etsa bonnete ba hore disc ha e kopane le ka hare ho liphaephe tse haufi.
- Koala disc ea valve butle butle ho etsa bonnete ba hore ho na le sebaka sa "disc" ho tsoa ho flange e haufi ea phala.
- Bula disc ka botlalo 'me u tiise liboutu tsohle tsa flange joalo ka ha ho bonts'itsoe.
- Pheta ka ho feletseng ho potoloha ka ho feletseng ha disc ho netefatsa hore ho na le libaka tse nepahetseng.
Nako ea poso: May-06-2020