Usoro mmepụta nke Microchannel Coils (MCHEs)

Mmepụta nke MCHE bụ usoro ziri ezi - na-akwalite nke na-ejikọta sayensị ihe onwunwe, ịkpụzi mpụta, na teknụzụ njikọ thermal, ahaziri iji mepụta ultra{1}obere ọwa mmiri (0.1–2 mm) maka ịnyefe ọkụ dị mma. Nzọụkwụ ndị bụ isi bụ ndị a:

1. Aluminom Alloy Ihe Nkwadebe

Ndị MCHE na-eji aluminom alloys (dịka ọmụmaatụ, 3003, 6061) n'ihi ịdị arọ ha dị arọ, ịdị elu okpomọkụ, yana ọnụ ahịa- ịrụ ọrụ.

Nhọrọ ihe: A na-agwakọta ihe ingots aluminum dị ọcha dị elu (magnesium, silicon) iji kwalite ike igwe na nguzogide corrosion, na-ezute ụkpụrụ ASTM B209 ma ọ bụ EN 573-3.

Na-ebu ụzọ nhazi: A na-ewetu elu nke ingot (iji alkaline Cleaners) wee pịnye (ya na nitric acid dilute) iji wepụ oxides, mmanụ, ma ọ bụ adịghị ọcha{0} dị mkpa maka ịhụ na extrusion otu na ịdị mma brazing mechaa.

2. Microchannel Flat Tube Extrusion

Nzọụkwụ a na-etolite "isi" nke MCHE: tubes dị larịị nwere ọtụtụ microchannels yiri ya.

Mbido extrusion: A na-akwali billet alloy aluminom ekpo ọkụ (ogo 450-500) site na nkenke{2}}engineered die (ya na oghere microchannel-) site na igwe nbipụta hydraulic. Nhazi anwụ na-ekpebi nha ọwa ozugbo (na-abụkarị<1 mm for high-efficiency models) and distribution.

Nhazi nha: A na-eme ka tube ahụ dị larịị dị jụụ ngwa ngwa (site na ikuku ma ọ bụ mmiri na-ekpo ọkụ) iji nọgide na-enwe nkwụsi ike nke akụkụ, wee belata ogologo oge achọrọ (site na 0,5 m ruo 6 m, dabere na ngwa).

Nyochaa ogo: Micrometers laser na-enyocha dayameta ọwa, ọkpụrụkpụ mgbidi na ịdị larịị{0}}a na-achịkwa nnabata n'ime ±0.02 mm ka ịzenarị ndakọrịta na-eguzogide mmiri.

3. Fins stamping & akpụ

A na-agbakwunye fins na tubes dị larịị iji gbasaa ebe a na-ebufe okpomọkụ (ihe bụ isi na arụmọrụ MCHE).

Usoro stampụ: A na-enyefe mpempe akwụkwọ aluminom (okpokoro 0.1-0.2 mm) n'ime mpempe akwụkwọ stampụ ziri ezi iji mepụta ụkpụrụ fin{2}} ụkpụrụ ndị a na-ahụkarị gụnyere ntù nwere mmasị (maka ọgba aghara ikuku na-emewanyewanye) ma ọ bụ nku corrugated (maka kọmpat).

Ọgwụgwọ tupu{{0} mkpuchi mkpuchi: Nkwụ nwere ike nweta ọgwụgwọ elu (dịka ọmụmaatụ, mkpuchi ngbanwe chromate) iji kwalite nrapado na brazing flux ma kwalite ọkwa - nguzogide corrosion brazing.

4. Isi Mgbakọ (Tube{1}}Fin Stacking)

A na-achịkọta ọkpọkọ na ntù dị larịị ka ọ bụrụ "isi ihe mgbanwe okpomọkụ"- ihe bụ isi na-arụ ọrụ.

Ngwunye akwa akwa: A na-ahazi tubes dị larịị n'otu n'otu, na-etinye ntù n'etiti tubes dị n'akụkụ iji mepụta Sanwichi{0}} dị ka nhazi. Mkpọchi nwa oge na-ejide mgbakọ ahụ iji gbochie ndakọrịta.

Njikwa oghere: A na-edobe oghere dị n'etiti tubes na ntù na<0.05 mm to ensure full contact during brazing, minimizing thermal resistance at the interface.

5. Vacuum brazing (Thermal Joining)

Vacuum brazing bụ nzọụkwụ dị oke egwu nke na-ejikọta ọkpọkọ dị larịị na ntù n'ime oghere- siri ike - n'adịghị ka ịgbanye omenala, ọ na-eme ka ike nhazi dị elu na ikuku ọkụ.

Ngwa Flux: A na-efesa oyi akwa aluminom -silicon (Al-Si) brazing flux (ebe mgbaze ~577 degrees) n'ime isi agbakọtara iji gbochie oxidation n'oge okpomọkụ.

Nhazi ọkụ ọkụ Vacuum: A na-etinye isi n'ime ọkụ ọkụ (nrụgide<10⁻³ Pa) and heated to 580–620°C. At this temperature, the flux melts and flows along the tube-fin interfaces, while the aluminum base material remains solid. The vacuum environment eliminates air bubbles, ensuring uniform brazing.

Na-ajụ oyi: A na-eme ka ọkụ ahụ dị jụụ nwayọọ nwayọọ (50-100 degrees / hour) iji belata nrụgide okpomọkụ, na-egbochi microcracks na microchannels.

6. Ịcha & Port Machining

A na-ahazi isi brazed iji gbakwunye ọdụ ụgbọ mmiri maka ntinye/ọnụ mmiri.

Isi ịkpụ: Igwe ọkụ CNC na-egbutu isi na nha ngwaahịa ikpeazụ (dịka ọmụmaatụ, 300 × 400 mm maka friza MCHE), yana coolant eji zere okpomọkụ{4}} nrụrụ kpatara.

Ịkwọ ụgbọ mmiri na ịpị: A na-agbapụ na nsọtụ nke tubes dị larịị ka ọ bụrụ ọdụ ụgbọ mmiri dị iche iche, wee pịa tinye eriri (dịka M10 ma ọ bụ 1/4 NPT) maka ijikọ ahịrị refrigerant. Ngwá ọrụ nbipu na-ewepụ ịkpụcha ígwè iji gbochie mgbochi ọwa.

7. Nnwale nrụgide & nchọpụta nkwụsị

MCHE chọrọ ihipu siri ike{0}} (dị mkpa maka ngwa refrigerant{1} dị ka AC ma ọ bụ refrigeration).

Nnwale nrụgide: The core is filled with high-pressure nitrogen (1.5–2 times the design working pressure, typically 2–3 MPa) and held for 30–60 minutes. Pressure gauges monitor for drops-any loss >0.01 MPa na-egosi ndapụta.

Nchọpụta nkwụsị nke Helium: Maka ngwa dị elu-nkenke (dịka ọmụmaatụ, AC automotive AC), a na-eji helium mass spectrometry chọpụta obere ntapu -( uche gbadara 1×10⁻⁹ Pa·m³/s).

8. Ọgwụgwọ n'elu & mgbochi -Mkpuchi corrosion (Nhọrọ)

Maka MCHE ndị a na-eji na gburugburu ebe ọjọọ (dịka ọmụmaatụ, mmiri ma ọ bụ oke iru mmiri - ntọala iru mmiri), a na-etinyekwu nchebe corrosion:

Ngwa mkpuchi: A na-efesa resin phenolic, epoxy, ma ọ bụ fluoropolymer mkpuchi n'elu isi. A na-achịkwa oke mkpuchi mkpuchi na 20-50 μm iji dozie nguzogide corrosion na nrụpụta okpomọkụ.

Ngwọta: A na-eme isi ihe mkpuchi ahụ na 120-180 degrees maka 30-60 nkeji iji gwọọ mkpuchi ahụ, na-akpụ akwa akwa na-enweghị ike ime.

9. Nyocha ikpeazụ & nkwakọ ngwaahịa

Nnwale zuru oke: Ndị nyocha na-enyocha akụkụ (site na igwe na-ahazi nhazi), (maka ntụpọ brazing dị ka mgbawa ma ọ bụ ihe residues flux), ma na-eme ule nrụpụta ọkụ na-enweghị usoro (iji ọwara ikuku tụọ ọnụego mgbanwe okpomọkụ n'okpuru ọnọdụ ọkọlọtọ).

Nkwakọ ngwaahịa: MCHE ndị tozuru etozu na-eji mmiri ekpuchi - ihe nkiri na-egosi ma na-eju ya na ụfụfụ{1}}katọn nwere ahịrị iji gbochie mmebi n'oge njem.

Usoro a na-eme ka ndị MCHE na-emezu ihe ndị chọrọ ịrụ ọrụ siri ike maka ngwa dị ka friji azụmahịa, ntụ oyi ụgbọ ala, na sistemu HVAC{0}} na-edozi arụmọrụ, kọmpat, na ntụkwasị obi.

HYLITA nwere ahịrị mmepụta na mgbakọ na-akpaghị aka, ahịrị mmepụta brazing na-akpaghị aka, yana ahịrị nnwale helium akpaghị aka.

1. Ngwa Mgbakọ akpaghị aka zuru oke

Ahịrị stampụ akpaaka zuru oke maka akụrụngwa isiNke butere mmụba 49% na ntụkwasị obi dị mma yana mmụba 67% na nrụpụta nke ngwa ngwa na-abụghị{2}}.

Ahịrị Mgbakọ ngwaahịa emechachara nke ọmaNa-eme ka nkwalite 51% na-arụ ọrụ nke ọma na mgbakọ na-eme ka nkwụsi ike dị mma ruo 99.8%.

2. Ngwa brazing akpaaka zuru oke

Ahịrị nrụpụta akpaaka zuru oke nwere ọwara-Ụdị ọkụ brazingNa-eduga na 53% ịrị elu na ntụkwasị obi dị mma, yana ọnụego ngafe nke ngwaahịa emechara brazed ruru 99.7%.

Ahịrị nrụpụta akpaaka zuru oke yana ọkụ Brazing VacuumInweta mmụba 57% na ntụkwasị obi dị mma, yana ọnụego ngafe nke ngwaahịa emechara brazed ruru 99.7%.

3. Ngwa mkpuchi / Nnwale akpaaka zuru oke

Ahịrị mmepụta ihe mkpuchi elu akpaaka zuru okeNa-ebuga nkwalite 55% na ntụkwasị obi dị mma, yana ọnụego ngafe nke ngwaahịa kpuchiri ekpuchi ruru 99.8%.

Ahịrị nnwale oghere Helium akpaghị aka zuru oke100% nke ngwaahịa niile na-anwale ule ntanye helium agụụ, na-ahụ na ọnụego ntozu 100% maka ule leak helium tupu nnyefe.

Ihe nchịkọta dị ọkụ: igwe na-asa akwa microchannel condenser , China igwe na-ehicha ihe microchannel condenser na-emepụta, ndị na-ebu, ụlọ ọrụ