CN102003841A - Heat exchanger and manufacturing method thereof and room air conditioner with heat exchanger - Google Patents
Heat exchanger and manufacturing method thereof and room air conditioner with heat exchanger Download PDFInfo
- Publication number
- CN102003841A CN102003841A CN 201010503254 CN201010503254A CN102003841A CN 102003841 A CN102003841 A CN 102003841A CN 201010503254 CN201010503254 CN 201010503254 CN 201010503254 A CN201010503254 A CN 201010503254A CN 102003841 A CN102003841 A CN 102003841A
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- heat exchanger
- fin
- radiating tube
- tooth
- thread
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a heat exchanger and a manufacturing method thereof and a room air conditioner with the heat exchanger. The heat exchanger comprises a radiating pipe positioned between two collecting pipes and a fin arranged outside the radiating pipe; the bodies of the collecting pipes are aluminum alloy pipes, and the outer surfaces of the aluminum alloy pipes are provided with soldering flux layers or solder layers; and the body of the fin is an aluminum alloy fin, and the outer surface of the aluminum alloy fin is provided with a soldering flux layer or a solder layer. The radiating pipe is an aluminum alloy pipe, and the inner pipe wall of the radiating pipe is provided with threaded teeth or straight teeth. The radiating pipe is elliptic, the length of a short axis of the radiating pipe is A, and the A is more than or equal to 5 millimeters and less than or equal to 20 millimeters; and the length of a long axis of the radiating pipe is B, and the B is more than or equal to 5 millimeters and less than or equal to 20 millimeters. The heat exchanger can be applied to an evaporator and a condenser, and has the characteristics of simple and reasonable structure, low flowing resistance, good soldering reliability, high heat exchange efficiency, high energy efficiency ratio and wide application range.
Description
Technical field
The present invention relates to a kind of heat exchanger, particularly a kind of heat exchanger and manufacture method thereof and the room air conditioner that possesses this heat exchanger.
Background technology
China is that bauxite resource is abundant, and the country of copper resource shortage.Air-conditioning efficiency standard rises year by year, and will certainly consume a large amount of copper resources, causes the copper valency rapidly to go up, and the copper resource faces risk in short supply.Therefore aluminium will become the inexorable trend of air-condition heat exchanger development from now on for copper technology.
Had two kinds of aluminium heat exchangers to be applied to room air conditioner at present, wherein a kind of heat exchanger is full aluminium micro-channel parallel flow heat exchanger.When this full aluminium micro-channel parallel flow heat exchanger uses as condenser, though its heat exchange effect is quite high, but be based on the defective of itself, i.e. radiating tube flat tube, fin corrugated fin, condensed water queueing problem and evaporation effect problem have been caused, therefore, when being used for the evaporimeter of heat pump machine or single cooler, cause very big difficulty, so still be in conceptual phase so far, do not form volume production.
And also has a kind of full aluminum pipe heat exchanger, a kind of idle call heat exchanger was disclosed on July 14th, 2010 as Chinese patent literature CN201527144U, comprise aluminium alloy U type pipe, fin and side plate, this fin expanded joint is outside U type pipe, be equipped with the connecting hole of pegging graft on fin and the side plate for U type pipe, this U type pipe comprises the body with inner chamber, has many along the tooth rib that extends with the body axial direction at the inner peripheral surface of the body of U type pipe, forms conduit between the adjacent teeth rib.That is to say that this aluminium alloy U type pipe is provided with teeth groove, is a kind of full aluminum pipe heat exchanger.
This idle call heat exchanger is by the moulding of compact form expand tube, and major defect is that its pipe internal spline is impaired under huge expand tube pressure easily, and behind the expand tube, the pipe internal tooth is scabbled, and manages inboard heat exchange and is had a strong impact on; And this heat exchanger is as A/C evaporator the time, and shunting is complicated, and pressure drop is bigger; Certainly will cause to be applied on the room air conditioner complete machine performance and have a greatly reduced quality, influence refrigeration or heating effect.And also have an even more serious problem to be: the solder joint of this idle call heat exchanger is many, and two engineering reliabilities that weld together of aluminum products and aluminum products are relatively poor, the time regular meeting phenomenons such as rosin joint, weldering are stifled, burning appear, have a strong impact on volume production efficient.Therefore, more than numerous factors restricting the development of aluminium for copper technology, be necessary to be further improved and perfect.
Summary of the invention
Purpose of the present invention aims to provide a kind of simple and reasonable, heat exchanger and manufacture method thereof that circulating resistance is little, soldering reliability good, heat exchange efficiency is high, Energy Efficiency Ratio is high, applied widely and the room air conditioner that possesses this heat exchanger, to overcome weak point of the prior art.
A kind of heat exchanger by this purpose design, comprise a plurality of radiating tubes between two headers and be arranged on fin outside the radiating tube, its architectural feature is that the body of header is an aluminium-alloy pipe, and the outer surface of this aluminium-alloy pipe is provided with brazing flux layer or solder layer; The body of fin is an aluminum alloy fin, and the outer surface of this aluminum alloy fin is provided with brazing flux layer or solder layer.
Described radiating tube is an aluminium-alloy pipe, and the tube wall of radiating tube is provided with thread or straight-tooth.
Described radiating tube ovalize, the length of the minor axis of radiating tube is A, and 5mm≤A≤20mm is arranged; The length of the major axis of radiating tube is B, and 5mm≤B≤20mm is arranged; The thickness of the tube wall of radiating tube is TF, and 0.1mm≤TF≤1mm is arranged; The thread of radiating tube or the tooth depth of straight-tooth are h, and 0.1mm≤h≤0.6mm is arranged; The thread of radiating tube or the space width of straight-tooth are w, and 0.01mm≤w≤0.08mm is arranged.
The angle of rifling of the thread of described radiating tube is α, and 0 °≤α≤90 ° are arranged, and the number of the thread of radiating tube is between 20～60.
Described fin is plate fin, corrugated fin, shutter, calking sheet or bridge sheet.
Be provided with the dividing plate of shunting usefulness in the described header.
The specification of the radiating tube between the described header is identical, and the specification of fin is identical or different.
The specification difference of the radiating tube between the described header, the specification of fin is identical or different.
A kind of manufacture method of heat exchanger; at first shape fin by high velocity ram machine; then fin is set on the radiating tube; pass through the slight swelling of electric tube expander again; the tension force of this moment reaches fin not landing on radiating tube and gets final product under double thread tooth or the harmless situation of straight-tooth guaranteeing, next again header and radiating tube are combined into one together with fin by assembling after; put into nitrogen-protective soldering furnace again and weld final molding.
A kind of room air conditioner comprises described heat exchanger or comprises via the produced heat exchanger of above-mentioned manufacture method, it is characterized in that heat exchanger is evaporimeter or condenser.
The middle part of the header among the present invention can be offered the dividing plate of shunting usefulness according to different needs, and cold-producing medium is evenly flowed in heat exchanger, reduces the circulating resistance of cold-producing medium in radiating tube, thereby has reduced the pressure drop of cold-producing medium.Radiating tube is oval, can increase front face area, and utilizes the outer surface condensed water to get rid of, and internal thread can strengthen the flow-disturbing of cold-producing medium in pipe, destroys heat transfer boundary layer, the inboard heat exchange amount of reinforced pipe.The middle perforate of fin conveniently penetrates in the radiating tube.
Expanded joint among the present invention adds thread or the straight-tooth that soldering processes can not destroy radiating tube, has effectively reduced the thermal contact resistance of heat exchanger, and oval-shaped radiating tube has increased front face area, improves the heat exchange efficiency and the heat exchange property of whole heat exchanger; Whole heat exchanger lead welding and shaping in soldering oven has improved the soldering reliability of aluminum-made heat exchanger.
The present invention not only goes for evaporimeter, but also goes for condenser, its have simple and reasonable, circulating resistance is little, soldering reliability good, heat exchange efficiency is high, Energy Efficiency Ratio is high, advantage of wide range of application.
Description of drawings
Fig. 1 is one embodiment of the invention structural representation.
Fig. 2 is that perspective view is amplified in the part of radiating tube.
Fig. 3 is the end face structure for amplifying schematic diagram of radiating tube.
Fig. 4 is the biopsy cavity marker devices structural representation of radiating tube.
Fig. 5 is the N place structure for amplifying schematic diagram among Fig. 3.
Fig. 6 for the M-M among Fig. 1 to analysing and observe the structure for amplifying schematic diagram.
Fig. 7 is the manufacturing flow chart of the heat exchanger among the present invention.
Among the figure: 2 is header, and 3 is dividing plate, and 4 is radiating tube, and 5 is thread or straight-tooth, and 6 is fin, and 7 are the input and output pipe, and 8 is end cap, and 9 is the radiating tube of mixed pipe diameters.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Referring to Fig. 1-Fig. 7, this heat exchanger comprises a plurality of radiating tubes 4 between two headers 2 and is arranged on fin 6 outside the radiating tube 4 that the body of header 2 is an aluminium-alloy pipe, and the outer surface of this aluminium-alloy pipe is provided with brazing flux layer or solder layer; The body of fin 6 is an aluminum alloy fin, and the outer surface of this aluminum alloy fin is provided with brazing flux layer or solder layer.For example 4343 brazing flux layers or 4343 solder layers.
As required, can in header 2, be provided with the dividing plate 3 of shunting usefulness, thereby form several flow processs, reach the purpose of shunting, reduce the flow of refrigerant resistance.
Radiating tube 4 is an aluminium-alloy pipe, and the tube wall of radiating tube 4 is provided with thread or straight-tooth 5, is used to improve the coefficient of heat transfer in the radiating tube 4.
Radiating tube 4 ovalizes, the length of the minor axis of radiating tube 4 is A, and 5mm≤A≤20mm is arranged; The length of the major axis of radiating tube 4 is B, and 5mm≤B≤20mm is arranged; The thickness of the tube wall of radiating tube 4 is TF, and 0.1mm≤TF≤1mm is arranged; The thread of radiating tube 4 or the tooth depth of straight-tooth are h, and 0.1mm≤h≤0.6mm is arranged; The thread of radiating tube 4 or the space width of straight-tooth are w, and 0.01mm≤w≤0.08mm is arranged.
The angle of rifling of the thread of radiating tube 4 is α, and 0 °≤α≤90 ° are arranged, and the number of the thread of radiating tube 4 is between 20～60.
The specification of the radiating tube 4 between the header 2 is identical, and the specification of fin 6 is identical or different.
The specification difference of the radiating tube 4 between the header 2, the specification of fin 6 is identical or different.
When making heat exchanger, may further comprise the steps:
The first step, at first choose the mother tube of aluminium alloy, then by the processing of drawing for example or extrude processing technology, with the band internal thread of mother tube manufacturing growth size or the radiating tube 4 of straight-tooth, be cut to afterwards can with the big or small corresponding size of the heat exchanger that is suitable for.
Second step at first became the regulation shape to the aluminum alloy fin punching press of brazing flux layer that is covering specific thickness or solder layer, then by the aluminum alloy fin that shapes is set on the radiating tube 4.
The 3rd step, by the frock clamp location, the radiating tube 4 that penetrates fin 6 is put into electric tube expander, carry out expand tube.
This expand tube process and common tube fin heat exchanger expand tube process are different, and what promptly tension force can be suitable reduces, and under assurance double thread tooth or straight-tooth 5 harmless situations, reach fin not landing on radiating tube 4 and get final product.
The 4th step, the aluminium-alloy pipe that is covering brazing flux layer or solder layer by the header 2 that is processed into required size such as cutting, again by punching press, the pilot hole of punching out radiating tube on header 2, then on header 2, cut splitter box, dividing plate 3 is installed, be pressed into end cap 8 up and down.
In the 5th step, in the pilot hole on the radiating tube 4 insertion headers 2 of the good fin 6 of swelling, by the frock clamping, the two ends that clamp header are with anti-deformation.
In the 6th step, the integral body of above-mentioned heat exchanger is put into nitrogen-protective soldering furnace, by applying brazing flux, drying, heating procedure, final molding.
Through the heat exchanger that above-mentioned steps makes, be to guarantee welding reliability on the one hand, be by soldering on the other hand, make thermal contact resistance almost nil, strengthened the heat exchange efficiency of aluminium-alloy pipe greatly.
Heat exchanger provided by the invention can be applied in and be used as evaporimeter or condenser in the room air conditioner, use together with compressor, expansion valve, throttling original paper etc., thereby improve refrigerating capacity, heating capacity and the efficiency coefficient of room air conditioner, improve the reliability of room air conditioner.And, can suitably revise as required, make the heat exchanger of mixed pipe diameters, see Fig. 6,9 among the figure is the radiating tube of mixed pipe diameters, such as the big caliber of the several streams in front, the several streams in back are with little caliber or the like, thereby improve the performance of whole heat exchanger.
Claims (10)
1. heat exchanger, comprise a plurality of radiating tubes (4) that are positioned between two headers (2) and be arranged on the outer fin (6) of radiating tube (4), the body that it is characterized in that header (2) is an aluminium-alloy pipe, and the outer surface of this aluminium-alloy pipe is provided with brazing flux layer or solder layer; The body of fin (6) is an aluminum alloy fin, and the outer surface of this aluminum alloy fin is provided with brazing flux layer or solder layer.
2. heat exchanger according to claim 1 is characterized in that described radiating tube (4) is an aluminium-alloy pipe, and the inner tubal wall of radiating tube (4) is provided with thread or straight-tooth (5).
3. heat exchanger according to claim 2 is characterized in that described radiating tube (4) ovalize, and the length of the minor axis of radiating tube (4) is A, and 5mm≤A≤20mm is arranged; The length of the major axis of radiating tube (4) is B, and 5mm≤B≤20mm is arranged; The thickness of the tube wall of radiating tube (4) is TF, and 0.1mm≤TF≤1mm is arranged; The thread of radiating tube (4) or the tooth depth of straight-tooth are h, and 0.1mm≤h≤0.6mm is arranged; The thread of radiating tube (4) or the space width of straight-tooth are w, and 0.01mm≤w≤0.08mm is arranged.
4. heat exchanger according to claim 2 is characterized in that the angle of rifling of the thread of described radiating tube (4) is α, and 0 °≤α≤90 ° are arranged, and the number of the thread of radiating tube (4) is between 20～60.
5. heat exchanger according to claim 1 is characterized in that described fin (6) is plate fin, corrugated fin, shutter, calking sheet or bridge sheet.
6. heat exchanger according to claim 1 is characterized in that being provided with in the described header (2) dividing plate (3) of shunting usefulness.
7. according to the arbitrary described heat exchanger of claim 1 to 6, it is characterized in that the specification of the radiating tube (4) between the described header (2) is identical, the specification of fin (6) is identical or different.
8. according to the arbitrary described heat exchanger of claim 1 to 6, it is characterized in that the specification difference of the radiating tube (4) between the described header (2), the specification of fin (6) is identical or different.
9. the manufacture method of a heat exchanger as claimed in claim 1, it is characterized in that at first shaping fin (6) by high velocity ram machine, then fin (6) is set on the radiating tube (4), pass through the slight swelling of electric tube expander again, the tension force of this moment is guaranteeing under double thread tooth or the harmless situation of straight-tooth (5), reaching fin (6) not landing on radiating tube (4) gets final product, next after again header (2) and radiating tube (4) being combined into one together with fin (6) by assembling, put into soldering oven again and weld final molding.
10. room air conditioner comprises the described heat exchanger of claim 1 or comprises via the produced heat exchanger of claim 9, it is characterized in that heat exchanger is evaporimeter or condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010503254 CN102003841A (en) | 2010-09-30 | 2010-09-30 | Heat exchanger and manufacturing method thereof and room air conditioner with heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010503254 CN102003841A (en) | 2010-09-30 | 2010-09-30 | Heat exchanger and manufacturing method thereof and room air conditioner with heat exchanger |
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| Publication Number | Publication Date |
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| CN102003841A true CN102003841A (en) | 2011-04-06 |
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| CN 201010503254 Pending CN102003841A (en) | 2010-09-30 | 2010-09-30 | Heat exchanger and manufacturing method thereof and room air conditioner with heat exchanger |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218650A (en) * | 2011-05-19 | 2011-10-19 | 青岛鸿森重工有限公司 | Process flow for manufacturing heat exchange circulating device of air conditioner external unit |
| CN102914182A (en) * | 2012-10-31 | 2013-02-06 | 刘鑫 | Gas-fried heating and hot water condensing heat exchanger |
| CN103913019A (en) * | 2014-01-18 | 2014-07-09 | 胡洁 | High-performance micro-channel heat exchanger for refrigerating system |
| CN104148912A (en) * | 2014-06-30 | 2014-11-19 | 美的集团武汉制冷设备有限公司 | Parallel flow heat exchanger and method for controlling distance between fins of parallel flow heat exchanger |
| CN106322729A (en) * | 2016-08-19 | 2017-01-11 | 青岛海尔空调器有限总公司 | Air conditioner, finned tube heat exchanger and assembly method of finned tube heat exchanger |
| CN106881511A (en) * | 2016-01-14 | 2017-06-23 | 株式会社Uacj | Heat exchanger and its manufacture method |
| RU2635720C2 (en) * | 2015-12-28 | 2017-11-15 | Федеральное государственное бюджетное учреждение науки Институт теплофизики им. С.С. Кутателадзе Сибирского отделения Российской академии наук (ИТ СО РАН) | Efficient vapour condenser for microgravity conditions |
| CN108344322A (en) * | 2018-03-28 | 2018-07-31 | 长沙格力暖通制冷设备有限公司 | Fin heat exchanger and air conditioner |
| CN108817868A (en) * | 2018-08-29 | 2018-11-16 | 四川沃姆斯科技有限公司 | A kind of combustion gas wall built-up boiler heat exchanger and its production technology |
| CN109737644A (en) * | 2018-12-29 | 2019-05-10 | 东莞市丰瑞德温控技术有限公司 | Manufacturing process of parallel flow heat exchanger for enhancing structural strength |
| CN110052795A (en) * | 2019-04-01 | 2019-07-26 | 大连冷冻机股份有限公司 | The processing method of oval tube fin heat exchanger |
| US10661395B2 (en) | 2014-07-30 | 2020-05-26 | Uacj Corporation | Aluminum-alloy brazing sheet |
| US11298779B2 (en) | 2017-11-08 | 2022-04-12 | Uacj Corporation | Brazing sheet and manufacturing method thereof |
| CN114413524A (en) * | 2021-12-15 | 2022-04-29 | 广东申菱环境系统股份有限公司 | Condenser |
| US11571769B2 (en) | 2018-09-11 | 2023-02-07 | Uacj Corporation | Method of manufacturing a brazing sheet |
| CN116871837A (en) * | 2023-09-04 | 2023-10-13 | 中山莱通金属科技有限公司 | Micro-channel porous flat tube process for low-cost parallel flow radiator |
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| CN201569328U (en) * | 2009-12-29 | 2010-09-01 | 李杨 | Expanded tube brazing type automobile radiator |
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| EP1188498A2 (en) * | 2000-09-12 | 2002-03-20 | Denso Corporation | Method and apparatus for making holes in a pipe |
| CN101122434A (en) * | 2006-08-11 | 2008-02-13 | 浙江三花制冷集团有限公司 | Parallel flow type heat exchanger |
| CN101634507A (en) * | 2009-08-18 | 2010-01-27 | 海信科龙电器股份有限公司 | Condenser and outdoor unit of split air conditioner |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218650A (en) * | 2011-05-19 | 2011-10-19 | 青岛鸿森重工有限公司 | Process flow for manufacturing heat exchange circulating device of air conditioner external unit |
| CN102914182A (en) * | 2012-10-31 | 2013-02-06 | 刘鑫 | Gas-fried heating and hot water condensing heat exchanger |
| CN103913019A (en) * | 2014-01-18 | 2014-07-09 | 胡洁 | High-performance micro-channel heat exchanger for refrigerating system |
| CN104148912A (en) * | 2014-06-30 | 2014-11-19 | 美的集团武汉制冷设备有限公司 | Parallel flow heat exchanger and method for controlling distance between fins of parallel flow heat exchanger |
| CN104148912B (en) * | 2014-06-30 | 2016-06-22 | 美的集团武汉制冷设备有限公司 | The control method of parallel-flow heat exchanger and a fin pitch of fins thereof |
| US10661395B2 (en) | 2014-07-30 | 2020-05-26 | Uacj Corporation | Aluminum-alloy brazing sheet |
| RU2635720C2 (en) * | 2015-12-28 | 2017-11-15 | Федеральное государственное бюджетное учреждение науки Институт теплофизики им. С.С. Кутателадзе Сибирского отделения Российской академии наук (ИТ СО РАН) | Efficient vapour condenser for microgravity conditions |
| CN106881511B (en) * | 2016-01-14 | 2019-04-30 | 株式会社Uacj | Heat exchanger and method of making the same |
| CN106881511A (en) * | 2016-01-14 | 2017-06-23 | 株式会社Uacj | Heat exchanger and its manufacture method |
| US11320217B2 (en) | 2016-01-14 | 2022-05-03 | Uacj Corporation | Heat exchanger and method of manufacturing the same |
| CN106322729A (en) * | 2016-08-19 | 2017-01-11 | 青岛海尔空调器有限总公司 | Air conditioner, finned tube heat exchanger and assembly method of finned tube heat exchanger |
| US11298779B2 (en) | 2017-11-08 | 2022-04-12 | Uacj Corporation | Brazing sheet and manufacturing method thereof |
| CN108344322A (en) * | 2018-03-28 | 2018-07-31 | 长沙格力暖通制冷设备有限公司 | Fin heat exchanger and air conditioner |
| CN108344322B (en) * | 2018-03-28 | 2023-12-15 | 长沙格力暖通制冷设备有限公司 | Fin heat exchanger and air conditioner |
| CN108817868A (en) * | 2018-08-29 | 2018-11-16 | 四川沃姆斯科技有限公司 | A kind of combustion gas wall built-up boiler heat exchanger and its production technology |
| CN108817868B (en) * | 2018-08-29 | 2024-06-21 | 绵阳沃姆斯科技有限公司 | Gas wall-mounted boiler heat exchanger and production process thereof |
| US11571769B2 (en) | 2018-09-11 | 2023-02-07 | Uacj Corporation | Method of manufacturing a brazing sheet |
| CN109737644A (en) * | 2018-12-29 | 2019-05-10 | 东莞市丰瑞德温控技术有限公司 | Manufacturing process of parallel flow heat exchanger for enhancing structural strength |
| CN110052795A (en) * | 2019-04-01 | 2019-07-26 | 大连冷冻机股份有限公司 | The processing method of oval tube fin heat exchanger |
| CN110052795B (en) * | 2019-04-01 | 2020-10-27 | 冰山冷热科技股份有限公司 | Method for processing elliptical tube fin heat exchanger |
| CN114413524A (en) * | 2021-12-15 | 2022-04-29 | 广东申菱环境系统股份有限公司 | Condenser |
| CN116871837A (en) * | 2023-09-04 | 2023-10-13 | 中山莱通金属科技有限公司 | Micro-channel porous flat tube process for low-cost parallel flow radiator |
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Application publication date: 20110406 |