1. Tlhaloso le Liphello tse ka Sehloohong tsa Lekhalo la Impeller

Lekhalo la "impeller" le bolela sebaka sa "radial clearance" lipakeng tsa "impeller" le "pompo casing" (kapa lesale la litataiso), hangata ho tloha ho 0.2 mm ho isa ho 0.5 mm. Lekhalo lena le ama haholo ts'ebetso ea  lipompo tsa turbine tse emisitsoeng ka mekhahlelo e mengata ka likarolo tse peli tse kholo:

● Litahlehelo tsa Hydraulic: Likheo tse feteletseng li eketsa phallo ea ho lutla, ho fokotsa bokhoni ba volumetric; likheo tse nyane haholo li ka baka ho senyeha ha likhohlano kapa cavitation.

● Litšobotsi tsa Phallo: Boholo ba lekhalo bo ama ka ho toba ho ts'oana ha phallo sebakeng sa impeller, ka hona ho ama li-curve tsa hlooho le tse sebetsang hantle.

2. Motheo oa Theory bakeng sa Impeller Gap Optimization

2.1 Ntlafatso ea Bokhabane ba Volumetric

Ho sebetsa hantle ha volumetric (ηₛ) ho hlalosoa e le karo-karolelano ea phallo ea 'nete ea phallo ho phallo ea theory:

ηₛ = 1 − QQleak

moo Qleak e leng phallo ea leakage e bakoang ke lekhalo la impeller. Ho ntlafatsa lekhalo haholo ho fokotsa ho lutla. Ka mohlala:

● Ho fokotsa lekhalo ho tloha ho 0.3 mm ho ea ho 0.2 mm ho fokotsa ho lutla ka 15-20%.

● Lipompong tsa mekhahlelo e mengata, katoloso e akaretsang methating eohle e ka ntlafatsa katleho e felletseng ka 5–10%.

2.2 Phokotso ea Litahlehelo tsa Hydraulic

Ho ntlafatsa lekhalo ho ntlafatsa ho tšoana ha phallo sebakeng sa impeller, ho fokotsa moferefere 'me kahoo ho fokotsa tahlehelo ea hlooho. Mohlala:

● Lipapiso tsa CFD li bontša hore ho fokotsa lekhalo ho tloha ho 0.4 mm ho ea ho 0.25 mm ho theola matla a pherekano a kinetic ka 30%, e tsamaellanang le phokotso ea 4-6% ea tšebeliso ea matla a shaft.

2.3 Ntlafatso ea Ts'ebetso ea Cavitation

Likheo tse kholo li mpefatsa khatello ea maikutlo sebakeng sa ho kena, ho eketsa kotsi ea cavitation. Ho ntlafatsa lekhalo ho tsitsisa phallo le ho phahamisa NPSHr (net positive suction head) margin, haholo-holo e sebetsang tlas'a maemo a tlaase a phallo.

3. Linyeoe tsa Teko le Boenjiniere

3.1 Lintlha tsa tlhahlobo ea laboratori

Setsi sa lipatlisiso se ile sa etsa liteko tsa papiso ho a pompo ea turbine ea mekhahlelo e mengata (mekhahlelo: 2950 rpm, 100 m³ / h, 200 m hlooho).

3.2 Mehlala ea Tšebeliso ea Liindasteri

● Petrochemical Circulation Pump Retrofit: Setsi sa tlhoekiso se fokolitse lekhalo la li-impeller ho tloha ho 0.4 mm ho ea ho 0.28 mm, ho finyella poloko ea selemo le selemo ea matla a 120 kW·h le phokotso ea 8% ea litšenyehelo tsa ho sebetsa.

● Ntlafatso ea Pompe ea Ente ea Platform ea Offshore: Ho sebelisa laser interferometry ho laola lekhalo (± 0.02 mm), ho sebetsa hantle ha molumo oa pompo ho ntlafetse ho tloha ho 81% ho ea ho 89%, ho rarolla mathata a ho thothomela a bakoang ke likheo tse feteletseng.

4. Mekhoa ea Ntlafatso le Mehato ea Phethahatso

4.1 Mohlala oa Lipalo bakeng sa Ntlafatso ea Lekhalo

Ho ipapisitsoe le melao ea ho tšoana ha pompo ea centrifugal le coefficients ea tokiso, kamano lipakeng tsa lekhalo le katleho ke:

η = η₀(1 − k·δD)

moo δ e leng boleng ba lekhalo, D ke bophara ba impeller, 'me k ke coefficient ea matla (hangata 0.1–0.3).

4.2 Litheknoloji tsa Bohlokoa tsa Phethahatso

●Precision Manufacturing: Mechini ea CNC le lisebelisoa tsa ho sila li finyella ho nepahala ha boemo ba micro-meter (IT7-IT8) bakeng sa li-impellers le casings.

●Tekanyo ea In-Situ: Lisebelisoa tsa alignment ea laser le litekanyo tsa botenya ba ultrasonic li lekola likheo nakong ea kopano ho qoba ho kheloha.

● Phetoho e Matla: Bakeng sa mecha ea litaba ea mocheso o phahameng kapa e senyang, ho sebelisoa mehele ea ho tiisa e ka nkeloang sebaka e nang le tokiso e ntle ea bolt.

4.3 Ho nahanela

● Friction-Wear Balance: Likheo tse fokolang li eketsa ho roala ha mechine; boima ba lintho tse bonahalang (mohlala, Cr12MoV bakeng sa li-impellers, HT250 bakeng sa li-casings) le maemo a ts'ebetso a tlameha ho leka-lekana.

● Matšeliso a Katoloso ea Thermal: Likheo tse bolokiloeng (0.03-0.05 mm) lia hlokahala bakeng sa lisebelisoa tse phahameng tsa mocheso (mohlala, lipompo tsa oli tse chesang).

5. Mekhoa ea Bokamoso

●Moralo oa Dijithale: AI-based optimization algorithms (mohlala, genetic algorithms) e tla tseba ka potlako likheo tse nepahetseng.

●Keketseho ea Tlhahiso: Khatiso ea tšepe ea 3D e thusa meralo e kopaneng ea li-impeller-casing, e fokotsang liphoso tsa kopano.

●Smart Monitoring: Li-sensor tsa Fiber-optic tse kopantsoeng le mafahla a dijithale li tla thusa ho lekola lekhalo la nako ea nnete le ho bolela esale pele ho senyeha ha ts'ebetso.

fihlela qeto e

Impeller gap optimization ke e 'ngoe ea mekhoa e tobileng ka ho fetesisa ea ho ntlafatsa katleho ea pompo ea turbine ea methati e mengata. Ho kopanya tlhahiso e nepahetseng, phetoho e matla, le ho beha leihlo ka bohlale ho ka fihlela katleho ea 5-15%, ho fokotsa tšebeliso ea matla, le litšenyehelo tse tlase tsa tlhokomelo. Ka tsoelo-pele ea boqapi le bohlahlobo, ntlafatso ea lekhalo e tla fetohela ho ho nepahala le bohlale bo holimo, e be theknoloji ea mantlha ea ho khutlisa matla a pompo.

Hlokomela: Litharollo tse sebetsang tsa boenjiniere li tlameha ho kopanya thepa e mahareng, maemo a ts'ebetso, le lithibelo tsa litšenyehelo, tse netefalitsoeng ka tlhahlobo ea litšenyehelo tsa bophelo (LCC).