Ke Kaʻina Hana Hana ʻana o Microchannel Coils (MCHEs)

ʻO ka hana ʻana o nā MCHE he kaʻina hana pololei-e hoʻohui i ka ʻepekema waiwai, hoʻoheheʻe extrusion, a me nā ʻenehana hui pū wela, i hana ʻia no ka hana ʻana i -kani kahe liʻiliʻi loa (0.1–2 mm) no ka hoʻololi wela. ʻO nā ʻanuʻu nui penei:

1. Aluminum Alloy Mea Hoʻomākaukau

Hoʻohana mua nā MCHE i nā alumini alumini (e laʻa, 3003, 6061) ma muli o ko lākou māmā māmā, kiʻekiʻe o ka wela, a me ke kumu kūʻai.

Koho Mea: Hoʻohui ʻia nā mea alumini maʻemaʻe kiʻekiʻe me nā mea hoʻoheheʻe (magnesium, silicon) e hoʻoikaika i ka ikaika mechanical a me ka pale ʻana i ka corrosion, e hālāwai ana me nā kūlana ASTM B209 a i ʻole EN 573-3.

Hana mua: Hoʻomaʻemaʻe ʻia nā ʻili o ka Ingot (me ka hoʻohana ʻana i nā mea hoʻomaʻemaʻe alkaline) a ʻohi ʻia (me ka waika nitric dilute) no ka wehe ʻana i nā oxides, aila, a i ʻole nā ​​​​mea haumia -koʻikoʻi no ka hōʻoia ʻana i ka extrusion like a me ka maikaʻi brazing ma hope.

2. Microchannel Flat Tube Extrusion

Hoʻokumu kēia ʻanuʻu i ka "core" o nā MCHE: nā paipu pālahalaha me nā microchannels like like.

Hoʻonohonoho Extrusion: Hoʻokuʻu ʻia ka billet alumini alumini wela (450–500 degere) ma o ka make -engineered pono (me nā ʻano ʻano microchannel-) ma o ka mīkini paʻi hydraulic. Hoʻoholo pololei ka hoʻolālā make i ka nui o ke kahawai (maʻamau<1 mm for high-efficiency models) and distribution.

Hoʻoponopono ʻana i ka nui: Hoʻomaʻalili ʻia ka paipu pālahalaha extruded (ma o ka ea a i ʻole ka wai hoʻopaʻa wai) e mālama i ke kūpaʻa dimensional, a laila ʻoki ʻia i ka lōʻihi i makemake ʻia (mai 0.5 m a 6 m, ma muli o ka noi).

Nānā maikaʻi: Hōʻoia nā micrometers laser i ke anawaena o ke kahawai, ka mānoanoa o ka paia, a me ka palahalaha -e hoʻomalu ʻia i loko o ±0.02 mm no ka pale ʻana i ka like ʻole o ke kahe.

3. Hoʻopaʻa ʻana a me ka hana ʻana

Hoʻohui ʻia nā ʻili i nā paipu palahalaha e hoʻonui i ka ʻili o ka wela (kahi kumu nui i ka pono MCHE).

Kaʻina Heʻi: Hoʻokomo ʻia nā pepa alumini (0.1–0.2 mm mānoanoa) i loko o ka mīkini paʻi paʻi pololei no ka hana ʻana i nā hiʻohiʻona maʻamau -o nā hoʻolālā maʻamau e komo pū me nā lau louvered (no ka piʻi ʻana o ka ea hoʻoheheʻe ʻia) a i ʻole nā ​​hiʻohiʻona poʻo (no ka paʻa).

Mamua -Lapaʻau ʻana: Hiki ke hoʻomaʻamaʻa ʻia ka ʻili (e laʻa, ka uhi hoʻololi chromate) no ka hoʻomaikaʻi ʻana i ka hoʻopili ʻana me ke kahe ʻana a hoʻomaikaʻi i ka pale ʻana i ka ʻinoʻino ma hope o -brazing.

4. Hui Ku'u (Tube-Fin Stacking)

Hoʻohui ʻia nā paipu pālahalaha a me nā ʻili i loko o kahi "mea hoʻololi wela"-ka ʻāpana hana maʻamau.

Layered Stacking: Ua hoʻolikelike ʻia nā paipu palahalaha, me ka hoʻokomo ʻia ʻana o nā peʻa ma waena o nā paipu pili e hana i kahi ʻano like me ka sandwich -like. Hoʻopaʻa nā puʻu manawa i ka hui e pale i ka misalignment.

Manaʻo ʻAha: Mālama ʻia ka ʻokoʻa ma waena o nā paipu a me nā ʻili<0.05 mm to ensure full contact during brazing, minimizing thermal resistance at the interface.

5. Hoʻomāmā

ʻO ka hoʻopaʻa haʻahaʻa haʻahaʻa ka hana koʻikoʻi e hoʻopaʻa mau ai i nā paipu palahalaha a me nā ʻili i loko o kahi leak-koko paʻa-ʻaʻole like me ka wili maʻamau, ʻo ia ka mea e hōʻoia ai i ka ikaika kiʻekiʻe a me ka hana wela.

Hoʻohana Flux: He ʻāpana lahilahi o ka aluminika -silikona (Al-Si) ka hoʻoheheʻe ʻia ʻana (kahi heheʻe ~577 degere) i kāpī ʻia a i ʻole ʻia ma luna o ke kumu i hui ʻia e pale aku i ka hoʻoheheʻe ʻana i ka wā hoʻomehana.

Hoʻoponopono ʻana i ka umu ahi: Hoʻokomo ʻia ke kumu i loko o ka umu ahi (pressure<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.

Hoʻoluʻu: Hoʻomaʻalili mālie ʻia ka umu (50–100 degere / hola) e hōʻemi i ke kaumaha wela, e pale ana i nā microcracks i nā microchannels.

6. Oki & Awa Mīkini

Hoʻohana ʻia ke kumu brazed e hoʻohui i nā awa pili no ka wai inlet/outlet.

ʻoki kumu: Ua ʻoki ka ʻike CNC i ke kumu a hiki i ka nui o ka huahana hope loa (e laʻa, 300×400 mm no nā MCHE pahu hau pāʻoihana), me ka mea hoʻoheheʻe i hoʻohana ʻia e pale aku i ka hoʻololi ʻana i ka wela.

ʻO ka wili ʻana a me ke kī ʻana i ke awa: Ua wili ʻia nā wēlau o nā paipu palahalaha e hana i nā awa nui, a laila kaomi e hoʻohui i nā kaula (e laʻa, M10 a i ʻole 1/4 NPT) no ka hoʻopili ʻana i nā laina pahu hau. Hoʻopau nā mea hana deburring i nā shaving metala no ka pale ʻana i ke kahawai.

7. Ho'āʻo Paʻi & ʻIke Leak

Pono nā MCHE i ka ʻoi loa o ka leak-pilikia (koʻikoʻi no nā palapala hoʻoheheʻe-e like me AC a i ʻole ka pahu hau).

Ho'āʻo Paʻi: 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 >Hōʻike ka 0.01 MPa i kahi leak.

ʻIke Leak Helium: No nā noi kiʻekiʻe -pololei (e laʻa, AC automotive), hoʻohana ʻia ka helium mass spectrometry no ka ʻike ʻana i nā leak micro{3}} (ʻike i ka 1×10⁻⁹ Pa·m³/s).

8. Ho'oma'ama'a Ili a me -Ka uhi 'ino'ino (koho)

No nā MCHE i hoʻohana ʻia i nā kaiapuni koʻikoʻi (e laʻa, ke kai a i ʻole nā ​​hoʻonohonoho haʻahaʻa kiʻekiʻe -), hoʻohana ʻia ka pale ʻino hou:

Hoʻopalapala: Hoʻopiʻi ʻia a hoʻoheheʻe ʻia nā mea hoʻonaninani Phenolic resin, epoxy, a i ʻole fluoropolymer ma luna o ka ʻili kumu. Hoʻomalu ʻia ka mānoanoa o ka uhi ʻana ma 20-50 μm e kaulike i ka pale ʻana i ka corrosion a me ka hoʻoili wela.

ʻO ka hoʻōla ʻana: Hoʻomoʻa ʻia ke kumu i uhi ʻia ma 120-180 degere no 30-60 mau minuke e hoʻōla i ka uhi ʻana, e hana ana i kahi ʻāpana paʻa ʻole.

9. ʻO ka nānā ʻana i ka maikaʻi a me ka hoʻopili ʻana

Hoʻāʻo piha: Nānā nā mea nānā i nā ana (ma o nā mīkini ana hoʻonohonoho), (no nā kīnā ʻole e like me nā māwae a i ʻole nā ​​koena flux), a hana i nā hoʻāʻo ʻoi aku ka maikaʻi o ka hoʻololi ʻana i ka wela (me ka hoʻohana ʻana i ka pūnana makani e ana i ka pākēneka wela ma lalo o nā kūlana maʻamau).

Hoʻopili ʻia: Ua wahī ʻia nā MCHE kūpono i loko o ke kiʻi ʻoniʻoni -makū a hoʻopaʻa ʻia i loko o nā pahu pahu -huhū i mea e pale ai i ka pōʻino i ka wā o ka lawe ʻana.

Mālama kēia kaʻina hana i nā MCHE e hoʻokō i nā koi koʻikoʻi o ka hana no nā noi e like me ka pahu hau pāʻoihana, ka ea kaʻa kaʻa, a me nā ʻōnaehana HVAC -e kaulike ana i ka pono, ka paʻa, a me ka hilinaʻi.

Hoʻolako ʻia ʻo HYLITA me nā laina hana a me nā laina hui, nā laina hana brazing automated, a me nā laina hoʻāʻo helium leak piha.

1. Na Lako Hui Hui Hooko

Nā Laina Stamping Automated no nā mea nuiMa muli o ka pi'i 'ana he 49% o ka hilina'i maika'i a me ka ho'omaika'i 'ana he 67% o ka ho'olako 'ana o nā mea ma'amau 'ole.

Nā Laina Hui Hoʻohui Paʻa LoaHiki i ka 51% hoʻonui i ka pono o ka hui ʻana a me ka hoʻomaikaʻi ʻana i ke kūpaʻa maikaʻi i 99.8%.

2. Na Lako Brazing Paa

Nā Laina Hana ʻakomi piha me ka Tunnel -Type Brazing FurnacesKe alakaʻi nei i ka piʻi ʻana o 53% i ka hilinaʻi maikaʻi, me ka helu o nā huahana brazed i hoʻopau ʻia a hiki i 99.7%.

Nā Laina Hana Hana ʻakomi piha me nā kapuahi hoʻomāmāLoaʻa i ka 57% ka hoʻonui ʻana i ka hilinaʻi maikaʻi, me ka helu pass o nā huahana brazed i hoʻopau ʻia a hiki i 99.7%.

3. Hoʻopili piha piha i nā lako / ho'āʻo

Nā Laina Hana Hoʻopaʻa Paʻa PaʻaKe hāʻawi nei i kahi hoʻomaikaʻi 55% i ka hilinaʻi maikaʻi, me ka helu pass o nā huahana i uhi ʻia a hiki i 99.8%.

Nā Laina Ho'āʻo Leak Helium Vacuum AutomatedLoaʻa ka 100% o nā huahana a pau i ka hoʻāʻo ʻana i ka leak helium vacuum, e hōʻoia ana i ka helu 100% no ka hoʻāʻo ʻana helium leak ma mua o ka lawe ʻana.

Nā huahana pale: mīkini holoi holoi microchannel condenser, Kina holoi mīkini holoi microchannel condenser mea hana, mea hoʻolako, hale hana