Kamohelo ea li-valve tsa liphaephe, teko ea khatello, Ho kenya le litaba tse hlokang tlhokomelo Ke eng e lokelang ho eloa hloko ha valve ea pipeline e kenngoa?
Litsamaisong tsa liphaephe tsa mokelikeli, li-valve ke likarolo tsa taolo tseo karolo ea tsona e ka sehloohong e leng ho arola lisebelisoa le lisebelisoa tsa liphaephe, ho laola phallo, ho thibela ho khutla, ho laola le ho ntša khatello. E ka sebelisoa ho laola ho phalla ha moea, metsi, mouoane, mefuta eohle ea mecha ea litaba e senyang, seretse, oli, tšepe ea metsi le mecha ea radioactive. Hobane tsamaiso ea liphaephe ho khetha valve e loketseng ka ho fetisisa e bohlokoa haholo, ka hona, ho utloisisa litšobotsi tsa valve le khetho ea mehato ea li-valve le motheo le tsona li fetoha tsa bohlokoa.
Li-valve
Litsamaisong tsa liphaephe tsa mokelikeli, li-valve ke likarolo tsa taolo tseo karolo ea tsona e ka sehloohong e leng ho arola lisebelisoa le lisebelisoa tsa liphaephe, ho laola phallo, ho thibela ho khutla, ho laola le ho ntša khatello. E ka sebelisoa ho laola ho phalla ha moea, metsi, mouoane, mefuta eohle ea mecha ea litaba e senyang, seretse, oli, tšepe ea metsi le mecha ea radioactive. Hobane tsamaiso ea liphaephe ho khetha valve e loketseng ka ho fetisisa e bohlokoa haholo, ka hona, ho utloisisa litšobotsi tsa valve le khetho ea mehato ea li-valve le motheo le tsona li fetoha tsa bohlokoa.
Mesebetsi e 4 ea valve ea pipeline
Pele, khaola le ho lokolla seaplane
Ena ke mosebetsi oa motheo oa valve, hangata khetha valve e otlolohileng ea phallo, ho hanyetsa ha eona ho phalla ho nyenyane.
Valofo e koetsoeng ka tlase (valve ea lefats'e, valve ea plunger) ka lebaka la tsela ea eona ea ho phalla, ho hanyetsa ho phalla ho phahame ho feta li-valve tse ling, kahoo ha ho khethoe ka tlase. Li-valve tse koetsoeng li ka sebelisoa moo ho hanyetsanang le phallo e phahameng ho lumelloang.
Ea bobeli, laola phallo
Hangata valve eo ho leng bonolo ho e lokisa e khethoa ho laola phallo. Li-valve tsa ho koala tse eang tlase (joalo ka li-valve tsa GLOBE) LI LOKELANG HO BAKENG SA MORERO ENA HOBANE BOHLOKO BA SETULO BO LEBANE LE STROKE EA SHUTOFF.
LI-VALVES tsa Rotary (PLUG, butterfly, BALL valves) le FLEXURE BODY VALVES (PINCH, DIAPHRAGM) LI TSE FUMANEHILE HO TSAMAISA HO TSAMAEA, empa hangata FEELA FEELA ka har'a mefuta e fokolang ea li-valve DIAMETERS.
Gate VALVE KE Heke e bōpehileng joaloka disc ho ea boema-kepe ba setulo se chitja ho etsa motsamao o fetang, e haufi le sebaka se koetsoeng, e ka laolang phallo hantle, kahoo hangata ha e sebelisoe ho laola phallo.
Boraro, shunt ea ho tsamaea
Belofo e ka ba le likanale tse tharo kapa ho feta, ho latela tlhoko ea ho khutlisa le ho kheloha. Li-valve tsa plug le bolo li loketse morero ona, ka hona, li-valve tse ngata tse sebelisetsoang ho khutlisa le ho kheloha li khethoa e le e 'ngoe ea li-valve tsena.
Leha ho le joalo, KA MAEMO A mang, MEFUTA E meng EA LI-VALVE LE ENA E KA SEBEDISWA JOALOKA DIVERTER COMMUTATION FEELA HA FEELA HORE LI-VALVE TSE PEDI kapa TSE EKETSEHILENG LI HOKANE KA nepo.
4. Mahareng a nang le likaroloana tse emisitsoeng
Ha sehare se nang le likaroloana tse emisitsoeng, ** se loketse ho sebelisoa ha likarolo tse koalang hammoho le holim'a ho koala ha valve e thellang ka ketso ea ho hlakola.
Haeba SHUTOFF E EMETSE MORAO LE PELE EA SETULO, LIKAROLO LI KA FUMANA, KA HONA VALVE ENA E LOKELA FEELA BAKENG SA LITABA TSE HLOEKILENG HA E LE HASE MOSEBETSI OA HO TIISA HO LUMELLA HORE LIKAROLO TSE KOPITSOE. Li-valve tsa bolo le li-valve tsa plug li hlakola sebaka sa ho tiisa nakong ea ho bula le ho koala, kahoo li loketse ho sebelisoa mecheng ea litaba ka likaroloana tse emisitsoeng.
Valve ea liphaephe e le karolo ea bohlokoa ea tsamaiso ea ts'ebetso. Boleng ba ho kenya li-valve tsa liphaephe ka ho toba bo etsa qeto e ntle ea mesebetsi e amanang le tsamaiso ea ts'ebetso. Lihokelo tsa mantlha tsa taolo ea tsamaiso ea eona ke tse latelang:
1, tlhahlobo ea li-valve le ho amoheloa
1.1 Tlhahlobo ea ponahalo ea li-valve: ha ho li-pores, trachoma, mapetsong le mafome 'meleng oa valve; Setsi ha se kobehe, ketsahalo ea kutu, khoele ea kutu e boreleli, e makhethe ntle le terata e robehileng; Gland e nang le phetoho e ntle, e tenyetsehang ea lebili la letsoho; Flange e tiisa bokaholimo ntle le mengoapo, li-pockmark, joalo-joalo; Khokahano ea likhoele boemong bo botle; Li-welding groove tse tšoanelehang. Nomoro ea li-valve, khatello le likarolo tse ling li lumellana le moralo.
1.2 Tlhahlobo ea litokomane: Litokomane li kenyelletsa haholo-holo: moralo oa boleng, bopaki ba thepa, litšoantšo tse hahiloeng, litlaleho tsa liteko, libuka tsa tlhokomelo, litlhoko tsa polokelo, le setifikeiti sa ho lumellana. Li-valve tse sa lumellaneng li tla ba le litokomane tse tsamaellanang tsa tokollo le lipoleiti tsa boitsebahatso tse sa lumellaneng le setheo.
2. Litlhoko tsa polokelo le tlhokomelo ea li-valve
Boloka li-valve tse kenang le ho tsoa li koetsoe 'me u behe desiccant, u nke sebaka kamehla ho latela litaelo tsa desiccant. Etsa qeto ea mocheso, mongobo le litlhoko tsa tikoloho bakeng sa polokelo ho latela litokomane tsa tlhokomelo ea li-valve. Bakeng sa li-valve tsa tšepe tse sa hloekang, ela hloko ho khetha thepa e sa halogen. Li-valve li lokela ho hlahlojoa le ho hlokomeloa khafetsa nakong ea polokelo.
3, tlhahlobo ea khatello ea valve
Hobane valve e entsoe ka khetla, setulo le teko ea khatello ea ho koala pele u tloha fekthering, etsa feela tlhahlobo ea ho koala ea valve setšeng. Bakeng sa boholo le karolo ea netefatso, tekanyetso ea naha ea GB50184-2011 e hlalosa karolo ea teko ea khatello ea tšimo, litekanyetso tsa linaheng tse ling ha li na litlhoko. Hangata mong'a lona o ikemiseditse ho ea ka tlhokomelo ea boleng le phihlelo ea tšebeliso ea sethala sa tlhahiso ea li-valve, 'me valve e akaretsang e hloka ho koaloa ka 100% tšimong.
3.1 Litlhokahalo tsa mahareng a teko: sebaka sa tlhahlobo ea valve ke metsi; Sebelisa maemo a fapaneng a boleng ba metsi ho latela bohloeki ba sistimi; Leha ho le joalo, ha mochine o sebetsang oa valve e le khase, mochine oa teko o khethoa ho sebelisa moea o hatelitsoeng o se nang oli kapa naetrojene, hape o ka nkeloa sebaka ke khatello ea metsi.
3.2 Boikemisetso ba khatello ea teko ea ho koala: Litlhoko tsa ho koala khatello ea liteko tsa li-valve ho GB/T13927-2008 le ASME B16.34 le MSS-SP-61 ha e le hantle li tšoana. HYDROSTATIC TEST PRESSURE KE 1.1 NAKO TSE RATEWENG KHATELLO EA SEHLOPHA SA VALVE A 100OF, KAPA HO KA SEBEDISWA TEKO YA TLASANE HO FETA 80psi MOEMO. Ha NAMEplate ea VALVE E TŠOAOA KA phapang e kholo ea KHATELLO EA HO SEBETSA KAPA MOSEBETSI OA Opereishene oa valve o sa tšoanelehe bakeng sa teko ea khatello ea khatello e phahameng ea khatello, khatello ea teko e ka etsoa ho latela linako tse 1.1 tsa phapang e khōloanyane ea khatello ea ho sebetsa e tšoailoeng ka letlapa la lebitso la valve.
3.3 Tlhahlobo ea liphetho tsa liteko: Tlhaloso ea tlhahlobo ea ho koala valve e hloka feela hore tlhahlobo e tšoarelle nako e khutšoanyane, 'me ha ho na tlhokahalo e khethehileng ea ho koala teko ka nako e ka tlase ho metsotso ea 5 ts'ebetsong ea sebele. Valve e tiisitsoeng ka thepa e feto-fetohang e ke ke ea e-ba le ho lutla ho bonahalang 'me ha ho na khatello ea khatello ea tekanyo ea khatello nakong ea nako ea ho tšoara khatello. BAKENG SA KAROLO TSA MORAO OA SEBELO O LUMELLA HO DUTLA, USSS E KA LEKOLA KA TOKA HO DUNYA KA NAKO YA yuniti KAPA YA SEBELISA PALO YA DIBUbble KAPA MATHO A METSI JOALOKAHA HO HLALOSWA HO MSS-SP-61 TETELLO YA KHATELLO. Leakage KE e amanang le bophara ba lebitso la valve. Tlhokahalo ea ho lutla ea maemo a naha e ts'oana le ea maemo a Amerika.
4. Ho kenngoa ha valve
4.1 Lekola tlhaiso-leseling pele ho ts'ebetso: Netefatsa palo e nyane, nomoro ea sistimi, mofuta, boemo ba khatello le tlhaiso-leseling e ngoe ho setsi sa ntho ho latela tlhaiso-leseling ea valve litšoantšong le litokomaneng tsa phetoho ea moralo oa ***, 'me u netefatse hore na sebaka sa ho kenya le se latelang sebaka sa tlhokomelo se lekane. Ts'ebetso ea valve e fumaneha.
4.2 Tšireletso ea valve: Bakeng sa likarolo tse tlokotsing tsa valve, disassembly kapa tšireletso e thata e ka etsoa pele ho kenngoa. Liphaephe LE LISEBETSI TSA HO KENYA VALVE LI TŠOANTŠE HO HLOKOMELA PELE HO TIISETSA BOHLOEKI BA KA HARE HO THIBELA LITŠHAKA TSA LIPEPENG LE LISEBETSI HO SENYA SEHLOOHO SA VALVE.
4.3 Tataiso ea ho kenya: Tataiso ea phallo e tšoailoeng holim'a 'mele oa valve e lokela ho lumellana le tataiso ea phallo ea tsamaiso ea tsamaiso. Belofo ea tšireletso e tlameha ho kenngoa ka holimo. Bakeng sa phuputso ea ho hlahloba valve, e ka kenngoa feela pipeline e otlolohileng e lokela ho etsa bonnete ba hore valve disc e otlolohile; Bakeng sa li-valve tsa ho hlahloba li-swing, boloka phini e le boemong.
4.4 Ho kenya le ho hokahanya li-valve:
Li-valve tsa weld: SHEBA boholo ba li-valve groove, netefatsa lisebelisoa tsa valve, sebelisa WPS e nepahetseng. Bakeng sa valve e bonolo ea welding, ha e cheselletsa, e ka tlosa reng ea ho tiisa ka mor'a ho tjheseletsa, welding e felile ho kenya lesale la ho tiisa hape; E ka boela ea laoloa ka ho bula li-valve le mocheso oa ho tjheseletsa ho latela litlhoko tsa moetsi. Bakeng sa li-VALVE TSE HLOKANG kalafo ea mocheso pele le ka mor'a ho tjheseletsa ha liphaephe tse teteaneng tsa alloy, ela hloko boleng ba mocheso o amohelehang oa likarolo tse ka hare tsa valve nakong ea phekolo ea mocheso.
Flange valve: Hlahloba hore na bokaholimo ba ho tiisa ha flange ha bo na sekoli le hore foromo ea ho tiisa le boemo ba khatello ea flange e kopanyang e lokela ho tšoana. Ho thibetsoe ka thata ho qobella sehlopha. Li-bolts li lokela ho kenngoa ka bolokolohi, li tiisetsoe ka symmetrically le torque e tlalehiloeng. Bakeng sa li-valve tsa mocheso o phahameng ho feta 300, mocheso o tiisa flange le ho paka liboutu tsa tšoelesa tlas'a boemo bo chesang.
Khokahano ea likhoele: ha ho nahanoa ka ho tlosoa habonolo, ho molemo ho theha manonyeletso a feto-fetohang lipheletsong tse peli tsa valve, ela hloko khetho ea lisebelisoa tsa ho tiisa likhoele, bakeng sa koporo, mochini oa tšepe oa tšepe, li-valve tse se nang tšepe, khoele le eona e ke ke ea phunyeletsoa. e thata, e le hore e se ke ea senya valve.
5, mathata a tloaelehileng a valve le mehato ea ho laola
Bothata bo atileng haholo ho kenyeng li-valve tsa masimong ke ho lutla ha valve. Mabaka a mantlha ke:
1. Bohloeki bo bobe ba liphaephe bo etsa hore lihlopha tsa linaha tse ling li khomarele sebakeng se koalang sa valve le ho senya sebaka se koalang;
2, taolo ea mocheso oa tjheseletsa e fokola, e bakang hore valve e chese deformation;
3. Ka mor'a ho phethoa ha tlhahlobo ea hydraulic, valve ha e hloekisoe le ho omisoa ka nako, e leng se bakang ho senyeha ha valve;
4, valve packing gland bolt ha e tlameletsoe;
5, belofo packing tiiso hloleha senya.
Melao e akaretsang ea ho kenya
1. Boemo ba ho kenya valve ha boa lokela ho kena-kenana le ts'ebetso, ho qhaqhoa le tlhokomelo ea thepa, pipeline le 'mele oa valve ka boeona, ha ho ntse ho nahanoa ka ponahalo ea kopano.
2. Bakeng sa li-valve liphaepheng tse tšekaletseng, kenya kutu ea valve holimo kapa ka Angle e itseng, u se ke ua kenya lebili la letsoho ho ea tlase. Belofo, kutu le mabili a letsoho holim'a phaephe ea bophahamo bo phahameng e ka kenngoa ka holimo, 'me ho bula le ho koala ha valve ho ka sebetsoa ka thōko ke ketane sebakeng se tlaase se otlolohileng.
3. Tokiso ea Symmetrical, e makhethe ebile e ntle; The valve on riser, tlas'a motheo oa ho lumella ts'ebetso, valve handwheel ho bophahamo ba sefuba ** ts'ebetso e loketseng, ka kakaretso 1.0-1.2m ho tloha fatše e loketse, 'me sefate sa valve se tlameha ho kenngoa haufi le tataiso ea opareitara.
4. Phahamiso e bohareng ea li-valve ka lehlakoreng le leng le le leng la riser e batla e tsitsitse, 'me sebaka sa marang-rang pakeng tsa mabili a matsoho ha se ka tlase ho 100mm; Li-valve tsa mela e tšekaletseng ka lehlakore li lokela ho thekesela ho fokotsa sebaka sa liphaephe.
5. Ha u kenya li-valve tse boima holim'a lipompo tsa metsi, lihlahisoa tsa mocheso le lisebelisoa tse ling, litšehetso tsa li-valve li lokela ho behoa; Ha valve e sebelisoa khafetsa 'me e kenngoa ka holimo ho 1.8m ho tloha sebakeng se sebetsang, ho lokela ho fanoa ka sethala se tsitsitseng sa ho sebetsa.
6. Haeba ho na le letšoao la motsu 'meleng oa valve, ntlha ea motsu ke tataiso ea phallo ea bohareng. Ha u kenya valve, e-ba hlokolosi hore motsu o supe ka nqa e le 'ngoe le e bohareng ba phaephe.
7. Ha u kenya li-valve tsa flange, etsa bonnete ba hore lifahleho tse peli tsa li-flange li tšoana le tse tsitsitseng, 'me u se ke ua sebelisa li-gasket tse peli.
8. Ha u kenya li-valve tse nang le likhoele, valve e nang le khoele e tla kenngoa ka khokahanyo e phelang bakeng sa ho qhaqha habonolo. Boemo ba khokahano e phelang bo lokela ho nahana ka boiketlo ba tlhokomelo, hangata metsi a phallang ka valve ebe ka mor'a khokahanyo e phelang.
Nako ea poso: Oct-25-2022
