Sebaka sa kopo le litlhoko tsa tekheniki tsa li-valve tsa seteishene sa motlakase (3)
Valve ke karolo ea bohlokoa ea lisebelisoa tse kholo tse felletseng, haholo-holo tse sebelisetsoang ho khaola, ho sisinyeha, ho laola khatello le ho fetola tsela ea phallo ea seaplane (thepa, metsi, mouoane, moea le oli, joalo-joalo) liphaepheng tsa tšebetso. Boleng ba valve bo ama ka kotloloho tlhahiso e tloaelehileng ea lisebelisoa tsena, ts'ebetso e bolokehileng le tšilafalo ea tikoloho, 'me e bapala karolo ea bohlokoa. Mefuta ea li-valve le litlhaloso li ngata, haholo-holo li-valve tsa heke, valve ea lefats'e, valve ea ho hlahloba, valve ea bolo, valve ea tšireletso, valve e fokotsang khatello, valve ea trap, valve ea serurubele le sepheo se khethehileng, tšebeliso e pharaletseng, tekanyo e kholo. Ho ea ka lipalo-palo tse sa phethoang le likhakanyo tse mpe, ka sete e kholo e feletseng ea lisebelisoa, lichelete tsa li-valve li etsa hoo e ka bang 3% - 5% ea chelete eohle ea lichelete tsa thepa.
(l) Moetsi oa li-valve le boemo ba tlhahiso
Naha e boemong ba setereke ka holim'a tsamaiso ea likhoebo tsa li-valve tse ka bang 180, ho kenyeletsoa le likhoebo tse 19 tsa mantlha, ho na le boholo bo itseng ba litoropo le likhoebo tsa motho ka mong ho feta 2000, baetsi ba batho ba banyenyane ba thata ho fumana lipalo-palo, likhoebo tsa makeisheneng le bahlahisi ka bomong li ajoa Jiangsu le Zhejiang le sebaka se bohareng sa Plains. Indastering ea li-valve, likhoebo tse kholo le tse mahareng tsa mmuso, haholo likhoebo tsa mokokotlo, li ntse li na le monyetla o moholo molemong oa tlhahiso ea li-valve le matla a botekgeniki. Ba bang ba baetsi bana ba sebelisitse mohlala oa lehlabathe la resin, likarolo tsa mantlha tsa valve ho lisebelisoa tsa mochini oa CNC, mela e ikemetseng kapa lisebelisoa tsa mochini o kopanyang, sebaka se tiisang ka karohano e lekanang le theknoloji ea welding ea spray, ts'ebeliso ea moralo oa li-valve tsa theknoloji ea CAD, likarolo tse tharo tse tiileng. mohlala. Theknoloji e tsoetseng pele e khothalelitse ntlafatso ea boemo ba tlhahiso ea li-valve le boleng ba sehlahisoa. Empa bahlahisi ba bangata ba li-valve ba lahla lisebelisoa tsa khale tsa ho qhibilihisa, haholo-holo mohlala oa matsoho, machining bakeng sa lisebelisoa tsa mochini o tloaelehileng le ho seha sesebelisoa se le seng, lisebelisoa tsa ho lemoha ha li phethahale kapa ha li finyelle maemo. Lilemong tsa morao tjena, ba bang ba baetsi ba li-valve tse nyenyane le tse mahareng ho matlafatsa tsamaiso ea basebetsi, ho beha motheo, lisebelisoa le ho utloisisa phetoho ea theknoloji, boemo ba theknoloji ea tlhahiso bo ile ba ntlafala butle-butle, sehlahisoa sa sehlahisoa, ho utloisisa boleng ba sehlahisoa, ho utloisisa 'maraka, melemo e mengata ea moruo, ka likhoebo tse kholo kapa tsa mokokotlo ho loants'a bokhoni, matla a eona le litebello tsa nts'etsopele li ke ke tsa nyenyefatsoa.
(2) Boemo ba sehlahisoa
Ka ho kenngwa tshebetsong ha maemo a naha, phetiso ea theknoloji, ho matlafatsa teko le ho lemoha ho bolela, phetoho ea khale ea lihlahisoa le ho ntlafatsa boemo ba moralo le ts'ebetso, boemo ba lihlahisoa tsa valve naheng ea rona bo ntlafetse haholo hoo e ka bang lilemo tse 20, mefuta e sa tšoaneng ea litlhaloso, haholo-holo. ka thata tiiso serurubele belofo, bataletseng heke belofo le thata tiiso bolo valve ka lihlopha le lihlahisoa e ile ea eketseha ka potlako (14 mefuta e belofo teng hoo e ka bang 2000 letoto la lihlooho tse, Ho feta 12,000 litlhaloso). Har'a bona, boholo ba li-valve tse tloaelehileng li fihlile lilemong tsa bo-1980 linaheng tse ling, li-valve tsena ka sebopeho sa sehlahisoa le thepa le likarolo tse ling tsa li-valve tse hlahisoang linaheng tse ling lilemong tsa morao tjena li tšoana, li ka hlahisoa ho ea ka maemo. litlhoko tsa kantle ho naha, empa boleng ba sehlahisoa ha bo tsitsa ka ho lekaneng, ho na le lekhalo le itseng le linaha tse tsoetseng pele. Empa ka li-valve tse ling tse khethehileng, tse kang valve ea ho laola ka mokhoa o itekanetseng, valve e thata ea ho tiisa bolo, * * valve e nyenyane ea ho phalla, molora oa slag, valve e ka sehloohong ea mouoane ea ho itšehla thajana le valve ea liphallelo, joalo-joalo), valve e phahameng ea parameter (e kang ho sebelisa mocheso oa mocheso, joalo-joalo). e phahameng ho feta 700 ℃, caliber ho feta lm ball valve), lisebelisoa tsa valve (hydrogen sulfide resistant steel material, urea le carbon fiber composite material), le lekhalo le nang le motlakase oa li-valve tse tsoang linaheng tse ling, joalo-joalo. (ho kenyeletsoa le kenyelletso ea moralo oa tšebeliso ea li-valve hape) le likhatelopele tsa tekheniki tse lokelang ho rarolloa butle-butle. Li-valve, matla a ts'ehetso ea malapeng a ka kopana le 300000 t/a ethylene, 300000 t/a ammonia, urea, 60000 t, 520000 t/a ea 80000 t/a/a polyethylene e phahameng ea khatello, polypropyle00, 60olglycinet/60olglycine. , 80000 t/a vinyl chloride, 50000 t/a propylene holt, 30000 t/a, acetaldehyde, 45000 t/a, 2.5 million t/a refinery, 3 butadiene 10,000 10,000 10,000 t/a airpower station, r3M 3M seteishene sa moea sa nuclear setsi sa motlakase le lipeipi tsa phetiso ea libaka tse telele le lisebelisoa tse ling. Tekanyo ea lisebelisoa tse kholo tse felletseng linaheng tsa kantle e ntse e eketseha, e phahamisa boemo ba li-valve tse tsamaellanang le eona. Hape ho na le mokhoa o joalo oa nts'etsopele Chaena, empa ho na le lekhalo le leholo la ho tšehetsa bokhoni ha le bapisoa le linaha tse tsoetseng pele, haholo-holo tse bontšitsoeng ka li-valve tse khethehileng, li-valve tse phahameng tsa parameter, litsamaiso tsa taolo le lisebelisoa tsa ho khanna.
Sebaka sa kopo le litlhoko tsa tekheniki tsa li-valve tsa seteishene sa motlakase (III) Mokhoa oa ho lokisa mohlala oa sehlahisoa o tla latela lipehelo tsa JB/T4018. Ha khetla e le thepa ea WCB le WC1, WC6 le WC9, mofuta oa sehlahisoa sa valve o tla hlophisoa ho latela mokhoa o boletsoeng ho JB/T4018 ka tšepe ea carbon le cr al-V alloy steel ka ho latellana. Letšoao la monyako le tlhahiso ea tlhahiso ea pente JB/T 106. Bakeng sa 'mele o entsoeng ka WCB, boitsebiso le ho penta li tla bolela litokisetso tsa lisebelisoa tsa carbon steel; Bakeng sa lihlopha tsa li-valve tse entsoeng ka WC1, WC6, WC9, seaparo sa boitsebiso se tla bua ka lipehelo tsa lisebelisoa tsa tšepe ea alloy. Phetoho ea 'mala oa pente e lumelloa ka kopo ea moreki.
Khokahano: Sebaka sa kopo le litlhoko tsa tekheniki tsa li-valve tsa seteishene sa motlakase (II)
8 Ho tšoaea, ho paka, ho boloka le ho tsamaisa
8.1 letšoao
8.1.1 Mokhoa oa ho bokella mofuta oa sehlahisoa o tla latela lipehelo tsa JB/T4018. Ha khetla e le thepa ea WCB le WC1, WC6 le WC9, mofuta oa sehlahisoa sa valve o tla hlophisoa ho latela mokhoa o boletsoeng ho JB/T4018 ka tšepe ea carbon le cr al-V alloy steel ka ho latellana.
8.1.2 Ha sehlopha sa valve e le WCB, WC1, WC6, WC9, nomoro ea eona ea letšoao e ka tšoauoa 'meleng oa valve.
8.1.3 Li-nameplate tsa tšepe li tla kenngoa lihlahisoa tsa li-valve tse nang le tsebo, 'me boemo bo tlamang le boholo ba li-nameplates li tla lumellana le litšoantšo tsa moralo. Ka kopo, sheba Sehlomathiso sa F bakeng sa likahare tsa letlapa la mabitso
8.1.4 Likarolo tsa bohlokoa le li-welds tsa khatello tse fetisang tlhahlobo li tla baloa kapa li tšoauoa ka ho toba, 'me matšoao a tla tšoauoa sebakeng seo ka khatello e tlaase ka ho fetisisa, haholo-holo ho qoba sebaka sa khatello ea kelello, phetoho ea sebopeho le sebaka se amehileng ke mocheso oa welding, e ke keng ea thibela kahlolo ea liphello tsa teko e sa senyeheng.
8.1.5 Ho tšoaea li-valve le ho penta ka boitsebiso Tlhahiso ea JB/T 106. Bakeng sa 'mele o entsoeng ka WCB, boitsebiso le ho penta li tla lebisa ho litokisetso tsa lisebelisoa tsa carbon steel; Bakeng sa lihlopha tsa li-valve tse entsoeng ka WC1, WC6, WC9, seaparo sa boitsebiso se tla bua ka lipehelo tsa lisebelisoa tsa tšepe ea alloy. Phetoho ea 'mala oa pente e lumelloa ka kopo ea moreki. Matšoao a mang a tla etsoa ho latela maemo a amehang.
8.2 ho paka
8.2.1 Pele o paka, valve e lokela ho penta ho latela 8.1.5, 'me likarolo tse sa pentiloeng kapa sebaka se sebetsitsoeng se se nang lera la mafome se lokela ho tlotsoa ka oli e thibelang mafome.
8.2.2 Sebaka sa ho tiisa, pheletso e cheselitsoeng, pheletso e khoele le sekoti se kahare sa valve lipheletsong tse peli tsa flange e lokela ho sireletsoa ka li-plug kapa lipoleiti tse koahelang, 'me e lokela ho ba bonolo ho kopanya le ho qhaqha.
8.2.3 Lihlahisoa tsa li-valve li tla kenngoa le ho romelloa ho ea ka lethathamo la ho paka: Li-valve tse nang le molumo o moholo li ka kenngoa li hlobotse ho ea ka litlhoko tsa taelo, empa li tla etsa bonnete ba hore li ke ke tsa senyeha nakong ea lipalangoang.
8.3 boloka
Lihlahisoa tsa li-valve li lokela ho bolokoa ka phaposing e ommeng, e nang le moea o kenang 'me li bokelloe ka makhethe ha ho hlokahala. Ha ea lumelloa ho boloka kapa ho bokella lihlahisoa.
8.4 lipalangoang
8.4.1 Nakong ea lipalangoang, diski ea valve e tla koaloa 'me disk ea "check valve" e tla lokisoa; Sephahla sa plug se lokela ho ba sebakeng sa unscrew; Boima ba valve ea lever bo tla tlosoa ho lever, e behoe ka thoko, 'me leqhubu le behiloe. Letlapa le ka lehlakoreng kapa phala ea lekala le tjheseletsa groove lipheletsong ka bobeli tsa kanale ea valve e koetsoe ka sekoaelo kapa plug ho thibela ho kenella ha litšila le likhoerekhoere.
8.4.2 Karolo e pepeneneng ea kutu e tla sireletsoa.
9 Phano ea lifaele
Litokomane tsa thomello li kenyelletsa setifikeiti sa sehlahisoa, lenane la ho paka lihlahisoa, le litaelo tsa ho kenya lihlahisoa le ts'ebetso. Litaba tsa mantlha li bonts'itsoe ho Sehlomathiso sa G, H le 'na ka ho latellana
Sehlomathiso A
(Sehlomathiso se rutang)
taelo
A.1 Tataiso ea litlhoko tsa mantlha e fuoa Moreki ho Lethathamo la A.1.
Lethathamo la A.1 Litlhokahalo tsa mantlha tsa odara
A.2 Lethathamo la A.2 le fana ka litaelo tse ling ho bareki bakeng sa litlhoko tse khethehileng tsa ho odara bakeng sa mefuta e fapaneng ea li-valve.
Letlapa A.2 Litlhoko tsa taelo e khethehileng
Sehlomathiso B
(Sehlomathiso sa Normative)
Khatello - tekanyo ea mocheso
B.1 Lethathamo la B.1~ B.17 le bontša hore thepa ea khetla ke 20.25. Zg200-400. Zg230-450.15crmo.zg20crmo.12crmo v. 15Cr1 Molv.zG20CrMov.zG15Cr1Mo1v.1Cr5Mo. ZG1Cr5Mo. Li-valve tsa 1Cr18Ni9Ti le ZG1Cr18Ni9Ti, Khatello ea eona ea lebitso ke 0.1 Mpa.0.25 Mpa.0.4 Mpa.0.6 Mpa.1.0 Mpa.1.6 mpa.2.5 Mpa.4.0 Mpa.6.3 Mpa.10.0 Mpa.16.0 MP. Khatello ea mocheso ho 25.0 Mpa.32.0 Mpa.42.0 Mpa.50.0 Mpa.63.0 MPa.
B.2 Litafole tsa B.18 ho ea ho B.21 li bontša litekanyetso tsa khatello ea mocheso-mocheso oa li-valve tse nang le thepa ea khetla WCB.WC1.WC6.WC9 bakeng sa sehlopha sa pound 150.300.600.900.1500.2000.2500.3500.4500 ka ho latellana.
Nako ea poso: Jul-26-2022
