Khetho ea li-valve le boemo ba ho seta
(1) Molao-motheo oa khetho ea li-valve tse sebelisoang liphaepheng tsa phepelo ea metsi
1.Pipe bophara ha e moholo ho feta 50mm, ho loketse ho sebelisavalve ea lefatše, bophara ba pipe e kholo ho feta 50mm, sebelisabelofo ea heke,serurubele belofo;
2.Belofo e laolang levalve ea lefatšee lokela ho sebelisoa ho fetola phallo le khatello ea metsi;
3.Karolo e hlokang khanyetso e nyane ea phallo ea metsi (joalo ka phala ea ho hula pompo ea metsi) e lokela ho sebelisoabelofo ea heke;
4.Belofo ea hekeleserurubele belofoe lokela ho sebelisoa karolong ea liphaephe moo metsi a hlokang ho phalla ka mahlakoreng a mabeli, le valve ea globe e sa lokelang ho sebelisoa;
5.Butterfly leli-valve tsa boloe lokela ho sebelisoa bakeng sa likarolo tse nang le sebaka se senyenyane sa ho kenya;
6. Ho loketse ho sebelisa avalve ea lefatšekarolong ea pipe e atisang ho buloa le ho koaloa;
7. Li-valve tse sebetsang ka bongata li lokela ho sebelisoa phala ea phallo ea pompo e kholo ea metsi a caliber.
(2) Boemo ba li-valve pompong ea phepelo ea metsi
1.Pepe ea phepelo ea metsi ea setereke sa bolulo e tsoa karolong ea lipeipi tse kenang tsa pompo ea phepelo ea metsi ea masepala;
2.Li-node tsa marang-rang a liphaephe tsa ka ntle tsa annular sebakeng sa bolulo sa bolulo li lokela ho behoa ho latela litlhoko tsa karohano.Ha karolo ea pipe ea annular e telele haholo, ho loketse ho theha valve e arohaneng;
3.Ho qala ha phala ea lekala kapa phala ea ntlo ho tloha pompong e kholo ea phepelo ea metsi seterekeng sa bolulo;
4.Peipi ea ntlo, mitha ea metsi le riser e 'ngoe le e' ngoe ea lekala (botlaaseng ba riser, ka holimo le tlase qetellong ea phala ea ring ring network riser);
5.Pipe ea lekala ea marang-rang a loop pipe, phala e kopanyang ea marang-rang ea phala ea lekala;
6. Lipeipi tsa phepelo ea metsi ka tlung ho ea malapeng, matloana a sechaba le phihlello e 'ngoe ea lipeipi tsa phepelo ea metsi, ha ho na le libaka tse 3 kapa ho feta tsa phepelo ea metsi pompong ea lekala ea phano ea metsi;
7.Outlet pipe ea pompo, pompo e monyang ea pompo ea ho nosetsa;
8.Sekena sa tanka ea metsi, phala e tsoang, pipe ea drainage;
9.Pipe ea ho tlatsa metsi bakeng sa lisebelisoa (tse kang heater, tora e pholileng, joalo-joalo);
10.Peipi ea kabo ea metsi bakeng sa lisebelisoa tsa bohloeki (tse kang li-urinals, lijana tsa ho hlatsoa, lishaoara, joalo-joalo);
11.Pele lisebelisoa tse ling, tse kang li-valve tsa ho qeta ka mokhoa o itekanetseng, li-valve tsa khatello ea khatello, li-eliminators tsa hamore tsa metsi, likhahla tsa khatello, li-sprinklers, joalo-joalo, pele le ka mor'a ho fokotsa khatello le thibelo ea ho khutlela morao, joalo-joalo;
12.Karolo e tlaase ka ho fetisisa ea marang-rang a phepelo ea metsi e lokela ho ba le valve ea drain.
(3) Khetho ea valve ea ho hlahloba
Sheba li-valveka kakaretso ba lokela ho khethoa ho ea ka boemo ba bona ba ho kenya, khatello ea metsi pele ho valve, litlhoko tsa ts'ebetso ea ho tiisa ka mor'a ho koala le boholo ba hamore ea metsi e bakoang ke lintlha tse koalang:
1.Mofuta oa swing,mofuta oa bolole li-valve tsa ho hlahloba mofuta oa shuttle li lokela ho khethoa ha khatello ea metsi pele valve e le nyenyane;
2.Ha ts'ebetso ea ho tiisa e le thata ka mor'a ho koala, aho hlahloba valveka selemo se koalang se lokela ho khethoa;
3. Ha hamore ea metsi e hloka ho fokotsoa le ho koaloa,Ho koala valve ea ho koala kapelekapa valve ea ho hlahloba Dashpot e nang le sesebelisoa sa damping e lokela ho khethoa;
4.Diseke ee eaho hlahloba valvee lokela ho kgona ho itswala tlasa ketso ya matla a khoheli kapa matla a selemo.
(4) Beha li-valve tsa ho hlahloba lithapong tsa phepelo ea metsi
Pipe ea tšebeletso;Liphaepheng tse kenang ka har'a licheso tsa metsi tse koetsoeng kapa lisebelisoa tsa metsi;Peiping ea pompo ea metsi;Liphaephe tse kenang le tsa ho tsoa li kopantsoe holim'a tanka ea metsi, tora ea metsi le karolo ea lipeipi tse tsoang letamong la lithaba.
Tlhokomeliso: Cheho hlahloba valvee hlokeha bakeng sa likarolo tsa liphaephe tse nang le lisebelisoa tse thibelang ho phalla ha lipeipi.
(5) Sebaka sa sesebelisoa sa ho ntša metsi bakeng sa phala ea phepelo ea metsi
1.Li-valve tsa ho qeta ka ho iketsae tla kenngoa lipheletsong le libakeng tse holimo tsa marang-rang a phepelo ea metsi a sebelisoang khafetsa;
2.Pipe karolo ea marang-rang ea phepelo ea metsi e nang le ho bokellana ha moea ho hlakileng.Valofo ea ho tima e iketsangkapa valve ea letsoho e kentsoe sebakeng se phahameng sa karolo ena bakeng sa mosi;
3. Sesebelisoa sa phepelo ea metsi a moea, ha ho sebelisoa tanka ea moea e ikemetseng, sebaka se phahameng ka ho fetisisa sa marang-rang a phepelo ea metsi se lokela ho ba le lisebelisoa.valve ea ho qeta ka ho iketsa.
Melemo le melemo ea li-valve tse fapaneng
1.Belofo ea heke
Belofo ea hekee bua ka karolo e koalang (letlapa la heke) ho latela tataiso e otlolohileng ea axis ea kanal ea valve, e sebelisoang haholo e le mokhoa oa ho itšeha pompong, ke hore, e butsoe ka botlalo kapa e koetsoe ka botlalo.Ka kakaretso,li-valve tsa hekee ke ke ea sebelisoa ho laola phallo.E ka sebelisoa ho khatello e tlaase ea mocheso e ka boela ea sebelisoa ho mocheso o phahameng le khatello e phahameng, 'me ho ea ka lisebelisoa tse fapaneng tsa valve.Empali-valve tsa hekehangata ha li sebelisetsoe ho tsamaisa seretse le mecha e meng ea litaba ka har'a lipeipi
Melemo:
(1)Ho hana mokelikeli o tlase;
(2) Torque e nyane e hlokahalang bakeng sa ho bula le ho koala;
(3) E ka sebelisoa marang-rang a loop moo sehare se phallang ka litsela tse peli, ke hore, tataiso ea phallo ea seaplane ha e thibetsoe;
(4) Ha e butsoe ka ho feletseng, khoholeho ea sebaka se koalang ke mochine o sebetsang o monyenyane ho feta oa valve ea lefats'e;
(5) Sebopeho sa 'mele se batla se le bonolo,' me mokhoa oa ho etsa lihlahisoa o molemo;
(6) Bolelele ba sebopeho se batla se le khutšoanyane.
Mefokolo:
(1) Litekanyo tse kholoanyane le bophahamo ba ho bula, sebaka se seholo sa ho kenya se hlokahalang;
(2) Ts'ebetsong ea ho bula le ho koala, tahlehelo ea khohlano ea sebaka sa ho tiisa e kholoanyane, leha e le mocheso o phahameng ho bonolo ho baka ketsahalo ea ho chafing;
(3) Kakaretsoli-valve tsa hekeho ba le likoahelo tse peli tse koalang, tse eketsang mathata a mang a ho sebetsa, ho sila le ho hlokomela;
(4) Nako e telele ea ho bula le ho koala.
2. Belofo ea serurubele:
Butterfly valveke mofuta oa belofo e bulang, e koalang le ho lokisa mocha oa mokelikeli ka ho potoloha ha mofuta oa disc o bulehileng le o koala likarolo tse ka bang 90 °.
Melemo:
(1) Sebopeho se bonolo, boholo bo bonyenyane, boima bo bobebe, ho boloka thepa;
(2) ho bula le ho koala ka potlako, ho hanyetsa phallo e nyenyane;
(3) E ka sebelisoa bakeng sa mahareng ka likaroloana tse tiileng tse emisitsoeng, ho ea ka matla a holim'a tiiso e ka boela ea sebelisoa bakeng sa phofo le seaplane sa granular.E ka sebelisoa bakeng sa ho bula le ho koala ka mahlakoreng a mabeli le ho lokisa lipeipi tsa moea le ho tlosa lerōle, tse sebelisoang haholo ho metallurgy, indasteri e khanyang, matla a motlakase, tsamaiso ea petrochemical ea liphaephe tsa khase le litsela tsa metsi, joalo-joalo.
Mefokolo:
(1) Phallo ea phallo ea phallo ha e kholo, ha e bulehile ho fihlela ho 30%, phallo e tla kena ho feta 95%;
(2) Ka lebaka la sebopeho le thepa ea tiiso easerurubele belofo, ha e loketse mocheso o phahameng le tsamaiso ea liphaephe tsa khatello e phahameng.Kakaretso ea mocheso oa ho sebetsa ka tlase ho 300 ℃, PN40 ka tlase;
(2) Ts'ebetso ea ho tiisa e fokola ha e bapisoa le li-valve tsa bolo le li-valve tsa globe, kahoo e sebelisoa libakeng tseo litlhoko tsa ho tiisa li seng holimo haholo.
3. Belofo ea bolo
Balofo ea boloe fetohile ho tloha ho valve ea plug, likarolo tsa eona tsa ho bula le ho koala ke bolo, e sebelisang bolo e pota-potileng axis ea stem rotation 90 degrees ho finyella morero oa ho bula le ho koala.Ball valve e pompong e sebelisoa haholo ho khaola, ho aba le ho fetola tsela ea phallo ea media, e etselitsoeng ho bula sebopeho sa V.belofo ea boloe boetse e na le ts'ebetso e ntle ea ho laola phallo.
Melemo:
(1) E na le khanyetso e tlaase ka ho fetisisa ea phallo (ha e le hantle 0);
(2) Hobane ha e khomarele mosebetsing (ha ho se na lubricant), e ka sebelisoa ka botšepehi ho mecha ea litaba e senyang le metsi a tlaase a belang;
(3) Ka e kholoanyane khatello le mocheso mefuta e fapaneng ya, ka finyella tiiso e feletseng;
(4) E ka lemoha ho bula le ho koala ka potlako, 'me nako ea ho bula le ho koala ea mehaho e meng ke 0.05 ~ 0.1s feela, e le ho netefatsa hore e ka sebelisoa tsamaisong ea boiketsetso ea benche ea teko.Ka potlako bula le ho koala valve, ho sebetsa ntle le tšusumetso;
(5) Likarolo tse koalang tsa spherical li ka beoa ka bo eona sebakeng sa moeli;
(6) Sesebelisoa sa ho sebetsa se tiisitsoe ka botšepehi mahlakoreng ka bobeli;
(7) Ha e butsoe ka ho feletseng 'me e koetsoe ka ho feletseng, sebaka sa ho tiisa bolo le setulo se arotsoe ho tloha bohareng, kahoo seaplane se fetang valve ka lebelo le phahameng se ke ke sa baka khoholeho ea sebaka sa ho tiisa;
(8) Sebopeho se thata, boima bo bobebe, se ka nkoa e le mohaho o utloahalang ka ho fetisisa oa li-valve bakeng sa tsamaiso e tlaase ea mocheso oa mocheso;
(9) 'Mele oa li-valve tsa Symmetrical, haholo-holo sebopeho sa' mele oa li-valve, se ka mamella khatello ea phala;
(10) Likarolo tse koalang li ka mamella phapang e phahameng ea khatello ha ho koaloa.
(11) Balofo ea bolo ea 'mele o nang le welded ka ho feletseng e ka patoa ka ho toba ka tlas'a lefatše, e le hore li-valve tsa ka hare li se ke tsa senyeha,' me bophelo bo phahameng ba tšebeletso bo ka fihla lilemo tse 30.Ke valve e loketseng ka ho fetisisa bakeng sa lipeipi tsa oli le khase.
Mefokolo:
(1) Hobane thepa e ka sehloohong ea ho tiisa setulo sa valve ke PTFE, ha e kenelle hoo e batlang e le lintho tsohle tsa lik'hemik'hale, 'me e na le litšobotsi tse pharaletseng tsa coefficient e nyenyane ea likhohlano, ts'ebetso e tsitsitseng, ha ho bonolo ho tsofala, mocheso o fapaneng le ho tiisa ka mokhoa o babatsehang. tshebetso.Leha ho le joalo, thepa ea 'mele ea teflon, ho kenyelletsa le coefficient e phahameng ea katoloso, kutloisiso ho phallo e batang le ho se sebetse hantle ha mocheso, ho hloka hore setulo se etselitsoe ho potoloha litšobotsi tsena.Ka hona, ha thepa ea ho tiisa e thatafala, ho tšepahala ha tiiso hoa senyeha.Ho feta moo, boemo ba mocheso oa PTFE bo tlase, bo ka sebelisoa feela tlas'a maemo a ka tlase ho 180 ℃.Ka holim'a mocheso ona, thepa ea ho tiisa e tla tsofala.Tabeng ea tšebeliso ea nako e telele, hangata e sebelisoa ho 120 ℃.
(2) Ts'ebetso ea eona e laolang e amanang le valve ea lefats'e e mpe le ho feta, haholo-holo valve ea pneumatic (kapa valve ea motlakase).
4. Belofo ea globe
E bua ka valve eo karolo e koalang ( disc) e tsamaeang haufi le mohala o bohareng oa setulo sa valve.Ho ea ka motsamao ona oa valve ea valve, phetoho ea ho bula setulo sa valve e lekana le "valve disc stroke." Hobane mofuta ona oa "valve stem" ea ho bula kapa ea ho koala e batla e le khutšoanyane, 'me e na le ts'ebetso e ka tšeptjoang haholo ea ho itšeha,' me ka lebaka la phetoho. ea ho bula setulo sa li-valve ho lekana le ho otla ha valve disc, e loketse haholo bakeng sa taolo ea phallo.Ka hona, mofuta ona oa valve o sebelisana haholo bakeng sa ho itšeha kapa ho laola le ho phunya.
Melemo:
(1) Ts'ebetsong ea ho bula le ho koala, hobane khohlano pakeng tsa disc le karolo ea ho tiisa 'mele oa valve e nyenyane ho feta valve ea heke, kahoo ha e sebetse;
(2) Bophahamo ba ho bula hangata ke 1/4 feela ea mocha oa setulo sa valve, kahoo o monyenyane haholo ho feta valve ea heke;
(3) Hangata ho na le sebaka se le seng sa ho tiisa holim'a 'mele oa valve le li-valve disc, kahoo mokhoa oa ho etsa lihlahisoa o molemo ebile o bonolo ho o hlokomela;
(4) Hobane filler ea eona hangata ke motsoako oa asbestos le graphite, kahoo boemo ba ho hanyetsa mocheso bo phahame.Li-valve tse akaretsang tsa mouoane li sebelisa li-valve tsa globe.
Mefokolo:
(1) hobane seaplane ho pholletsa le belofo phallo tataiso fetohile, kahoo bonyane phallo khanyetso eavalve ea ho emisae phahame ho feta mefuta e meng e mengata ea li-valve;
(2) Ka lebaka la ho otloa ha nako e telele, lebelo la ho bula le lieha ho feta valve ea bolo.
5. plug valve
Ke mofuta oa valve eo karolo e koalang e leng vallofo ea rotary e bōpehileng joaloka plunger, 'me kou ea mocha e hoketsoeng kapa e arotsoe ho tloha boema-kepe ba mochini oa valve ka 90 ° ho potoloha ho bula kapa ho koala.Sebopeho sa plug ea valve e ka ba cylindrical kapa conical.Molao-motheo oa eona ha e le hantle o tšoana le valve ea bolo.Balofo ea bolo e etsoa motheong oa valve ea plug.E sebelisoa haholo bakeng sa tšebeliso ea sebaka sa oli le indastering ea petrochemical.
6. Valofo ea tšireletso
E bua ka sesebelisoa sa ts'ireletso ea khatello e feteletseng setšelong sa khatello, lisebelisoa kapa liphaephe.Ha khatello ea thepa, setshelo kapa phaephe e phahama ka holim'a boleng bo amohelehang, valve e bula ka ho toba ebe e tsoa ka ho feletseng ho thibela khatello ea thepa, setshelo kapa pipeline hore e tsoele pele ho phahama;ha khatello e fokotsehile ho boleng bo boletsoeng, valve e lokela ho koaloa ka nako ka nako ho sireletsa ts'ebetso e sireletsehileng ea lisebelisoa, lijana kapa liphaephe.
7. Belofo ea sefi sa mouoane
Ha re tsamaisa mouoane, moea o hatelitsoeng le mecha e meng ea litaba, ho tla ba le sebopeho sa metsi a khutsufalitsoeng, e le ho netefatsa ts'ebetso e sebetsang le ts'ebetso e bolokehileng ea sesebelisoa, re lokela ho lahla mecha ena e se nang thuso le e kotsi ka nako ho netefatsa ts'ebeliso le ts'ebeliso ea sesebelisoa. sesebelisoa.E na le mesebetsi e latelang:
(1) E ka felisa ka potlako metsi a condensation;
(2) ho thibela ho tsoa ha mouoane;
(3) Se kenyeletse moea le likhase tse ling tse sa khoneng ho kolobisa.
8. Valofo e fokotsang khatello
Ke valve e fokotsang khatello ea ho kena ho khatello e hlokahalang ea ho tsoa ka ho fetola, 'me e itšetlehile ka matla a sehare ka boeona ho boloka khatello ea ho tsoa e tsitsitse ka bo eona.
9. Hlahloba valve
Theho hlahloba valveke valve ea othomathiki, e buloang le ho koaloa ka bo eona ke matla a hlahisoang ke phallo ea seaplane ka boeona ka phaephe.Hlahloba valvee sebelisoa tsamaisong ea liphaephe, mosebetsi oa eona o ka sehloohong ke ho thibela ho khutlela morao, ho thibela pompo le ho khanna koloi, le ho lutla ha setshelo.Sheba li-valvee ka boela ea sebelisoa ho fana ka lisebelisoa tse thusang moo khatello e ka 'nang ea phahama ka holim'a khatello ea tsamaiso.E ka aroloa haholo-holo ka mofuta oa swing (ho potoloha ho ea ka bohareng ba matla a khoheli) le mofuta oa ho phahamisa (ho tsamaea haufi le axis).
Nako ea poso: Jan-06-2023