CN102052861A - Plate-fin/tube-fin type radiator of vehicle - Google Patents
Plate-fin/tube-fin type radiator of vehicle Download PDFInfo
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- CN102052861A CN102052861A CN 201010590857 CN201010590857A CN102052861A CN 102052861 A CN102052861 A CN 102052861A CN 201010590857 CN201010590857 CN 201010590857 CN 201010590857 A CN201010590857 A CN 201010590857A CN 102052861 A CN102052861 A CN 102052861A
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Abstract
The invention discloses a plate-fin/tube-fin type radiator of a vehicle. A core is divided into a high temperature region and a low temperature region according to a thermoisopleth form of a radiator core part; and when the heat exchange capacity of the conventional radiator cannot meet the actual requirement, heat exchange fins with different densities or of different types are arranged in different regions by a local heat exchange strengthening method. If cold side fins of the high temperature region are thickened or hot side fins of the low temperature region are thickened, the heat exchange performance can be greatly improved at the expense of lower resistance.
Description
Technical field
The present invention relates to a kind of heat-transferring method, relate in particular to a kind of automobile-used plate-fin/fin-tube type radiator.
Background technology
In recent years, with the appearance of high density, high-power engine and numerous new technology, the application of new system on automobile, the vehicle heat dissipation environment is abominable day by day, and the volume of car radiator, weight, operating efficiency etc. have been proposed new demand.Meanwhile, because worldwide energy and environment problem, the importance of energy-saving and emission-reduction becomes increasingly conspicuous.How according to the actual radiating requirements of vehicle, design had both possessed enough exchange capability of heat, can at utmost reduce the radiator of resistance dissipative again, was a problem that has very much realistic meaning.
Plate-fin, fin-tube type radiator are because its efficient, compact, light and handy characteristic has obtained application very widely on automobile.Wherein, fin has been born vital heat exchange task, is a key factor that influences heat exchange property.The target of people research for many years concentrates on the parameter such as the structure, size of fin itself in a large number, also by designing new fin structure radiator performance is improved.But the performance optimization of car radiator also faces following problem at present:
1. through the research of decades, the design to fin structure has at present almost entered bottleneck, and the further lifting of fin exchange capability of heat often is accompanied by a large amount of resistance dissipatives as cost.
2. owing to effects limit such as processing technology, environment for use, structural strengths, the structural shape of car radiator can not have essence to change.Some technology that the augmentation of heat transfer field is commonly used such as boiling heat transfer, electromagnetism enhanced heat exchange etc. are difficult to realize on automobile-used heat exchanger.
3. car radiator and engine operation performance, energy-saving and emission-reduction all have substantial connection, and are overheated or cross and coldly all can have a negative impact to engine.And the method ratio of strengthening whole core exchange capability of heat at present common the time is easier to cause surfusion to take place, and unnecessary heat-sinking capability causes the resistance dissipative waste.
4. production cost is the key factor that automobile-used heat exchanger research and development need consideration, should utilize the existing resources of production to realize the raising of radiator performance as far as possible.
Therefore, on the basis of existing fin pattern, need seek new solution,, satisfy the actual demand of engine cool to coordinate the contradiction between radiator resistance dissipative and the exchange capability of heat.
In existing research, find, because flowing velocity, the Temperature Distribution and inhomogeneous of the cold and hot medium in radiator inside cause radiator centre the serious uneven phenomenon of heat transfer intensity to occur.Some regional cold and hot temperature difference is bigger, and rate-of flow is also higher relatively, strengthens this regional heat transfer intensity, can realize the lifting of integral heat sink device exchange capability of heat easily; And some regional cold and hot temperature difference is less, and rate-of flow is low, even if strengthen these regional heat exchange, also may not necessarily reach better heat exchange effect, can cause the rapid lifting of flow resistance on the contrary.Therefore, the present invention proposes the intensified heat transfer method of fin local strengthening, seeks the higher crucial heat exchange zone of heat exchange demand in the radiator, by strengthening the fin pattern of regional area, to be under the prerequisite of cost than slight drag, effectively promote the service behaviour of radiator.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of automobile-used plate-fin/fin-tube type radiator is provided.
The objective of the invention is to be achieved through the following technical solutions: a kind of automobile-used plate-fin/fin-tube type radiator, it comprises: thermal medium inlet, upper chamber, lower chamber, thermal medium outlet, some cooling air channels and some hot media channels; Cooling air channels and hot media channel are alternately arranged successively, cooling air channels and hot media channel upper and lower side are respectively upper chamber and lower chamber, the hot media channel two ends communicate with upper chamber and lower chamber respectively, and the thermal medium inlet is positioned on the upper chamber, and the thermal medium outlet is positioned on the lower chamber.All contain radiating fin in cooling air channels and the hot media channel, and the radiating fin in each passage is partly formed by close heat exchange fin part and thin heat exchange fin, between close heat exchange fin part and the thin heat exchange fin part is cut-point, temperature is the radiator mean temperature on each cut-point, and the cut-point of the radiating fin in each passage is formed fin Region Segmentation line.
The present invention has following technique effect:
1. energy saving: the zone that can select fin to encrypt according to the practical working situation of radiator, and the fin degree of encrypting, can control the growth of radiator resistance pressure reduction preferably, realize effective lifting of exchange capability of heat simultaneously.
2. applicability: when radiator is carried out improvement design, can be by progressively encrypting fin, or progressively increase the method in high-efficiency fin zone, and find the optimal match point of resistance pressure reduction and heat exchange property, satisfy multiple different radiating requirements.
3. be convenient to integration and modularized design: adopt the method for local fin reinforcing, can not only obtain higher operating efficiency, avoid surfusion the Temperature Distribution that also can regulate the radiator downstream to occur.According to the design fin allocation plans such as position, structure and heat exchange demand of upstream and downstream radiator, can realize the combinations matches optimization of upstream and downstream radiator in the automobile-used cooling system.
4. this method use cost is low, processing technology is simple.
Description of drawings
Fig. 1 is for using the car radiator front view of intensified heat transfer method of the present invention;
Fig. 2 is the charge air cooler interior temperature distribution schematic diagram that simulation calculation obtained;
Among the figure, thermal medium inlet 1, upper chamber 2, cooling air channels 3, hot media channel 4, lower chamber 6, thermal medium outlet 7.
The specific embodiment
The present invention is directed to the radiator practical working situation, the different arrangements by the design fin are promoted the fuse exchange capability of heat, will be controlled in certain scope by resistance dissipative simultaneously.According to the simulation calculation of radiator and theory analysis are found, when cold fluid and hot fluid temperature difference field tends to even, enhanced heat exchange more effectively.In the practical work process of radiator, because the thermal medium skewness, the heat transfer intensity of radiator core is also unbalanced, and the heat exchange of subregion is saturated fully, and the heat transfer intensity of subregion is lower.By the radiator core subdivision is divided into high-temperature area and low-temperature region, when the exchange capability of heat of original radiator can't practical requirement, the thought that adopts local heat exchange to strengthen, to zones of different configuration density difference or the different heat exchange fin of pattern, can in than the slight drag cost, realize the bigger lifting of heat exchange property.
As shown in Figure 1, the automobile-used plate-fin of the present invention/fin-tube type radiator comprises: thermal medium inlet 1, upper chamber 2, lower chamber 6, thermal medium outlet 7, some cooling air channels 3 and some hot media channels 4.Cooling air channels 3 and hot media channel 4 are alternately arranged successively, cooling air channels 3 and hot media channel 4 upper and lower sides are respectively upper chamber 2 and lower chamber 6, hot media channel 4 two ends communicate with upper chamber 2 and lower chamber 6 respectively, thermal medium inlet 1 is positioned on the upper chamber 2, and thermal medium outlet 7 is positioned on the lower chamber 6.All contain radiating fin in cooling air channels 3 and the hot media channel 4.Thermal medium enters upper chamber 2 from thermal medium inlet 1, after being cooled through hot media channel 4, is flowed out by lower chamber 6, thermal medium outlet 7.Cooling air carries out cooling heat transferring perpendicular to the mobile direction of thermal medium by 3 pairs of thermal mediums of cooling air channels.
Therefore, all contain radiating fin in cooling air channels 3 of the present invention and the hot media channel 4, and the radiating fin in each passage is partly formed by close heat exchange fin part and thin heat exchange fin, between close heat exchange fin part and the thin heat exchange fin part is cut-point, temperature is the radiator mean temperature on each cut-point, and the cut-point of the radiating fin in each passage is formed fin Region Segmentation line 5.
Calculate as shown in Figure 2, at first by experiment, the Temperature Distribution of method estimation core areas such as emulation.The high speed thermal medium mainly is divided into three strands after entering radiator from thermal medium inlet 1, upper chamber 2, and radiator both sides and radiator middle channel capacity are higher, so these regional temperatures are also relative with heat transfer intensity higher, and Temperature Distribution is the M type.Visible radiator interior temperature distribution situation among Fig. 2.
Definite mode of fin Region Segmentation line 5 is as follows: the method estimation radiator plane temperature of utilizing simulation calculation, also can adopt experimental measurement method that the temperature on the same plane of radiator is carried out the cloth point measurement, based on the temperature isopleth, get the average of radiator internal temperature.As shown in Figure 2, the thermal medium inlet temperature is 433K, and minimum temperature is 296K on the radiator plane, gets average 365K, and along the form of 365K temperature isopleth, roughly the shape of drawing is determined fin Region Segmentation line 5.Consider easy to process and user demand, fin Region Segmentation line 5 does not need to fit like a glove with the temperature equivalent curve, as long as basic configuration and position consistency.Fin Region Segmentation line 5 tops are defined as high temperature, high efficient heat exchanging zone; The below is defined as low temperature, poor efficiency heat exchange zone.Encrypt the heat exchange fin in the interior cooling air channels 3 of high-temperature area, or encrypt the heat exchange fin in the hot media channel 4 in the low-temperature region, realize the effect of enhanced heat exchange, the resistance pressure reduction of simultaneously interior outer passage still can be controlled at suitable scope.
The present invention all can use water tank of vehicle, charge air cooler, oil cooler etc.Only need to determine fin Region Segmentation line 5, assemble different fins in zones of different and can finish, do not influence the overall work environment and the structural strength of radiator, and the processing attended operation is simple by preliminary analysis.
Can determine the average of radiator internal temperature according to the practical working situation of radiator, thereby obtain fin Region Segmentation line 5, can control the growth of radiator resistance pressure reduction preferably, realize effective lifting of exchange capability of heat simultaneously.The present invention satisfies multiple different radiating requirements by finding the optimal match point of resistance pressure reduction and heat exchange property.The present invention adopts the method for local fin reinforcing, can not only obtain higher operating efficiency, avoids surfusion the Temperature Distribution that also can regulate the radiator downstream to occur.According to the design fin allocation plans such as position, structure and heat exchange demand of upstream and downstream radiator, can realize the combinations matches optimization of upstream and downstream radiator in the automobile-used cooling system.
Claims (1)
1. automobile-used plate-fin/fin-tube type radiator is characterized in that it comprises: thermal medium inlet (1), upper chamber (2), lower chamber (6), thermal medium outlet (7), some cooling air channels (3) and some hot media channels (4) etc.; Wherein, described cooling air channels (3) and hot media channel (4) are alternately arranged successively, cooling air channels (3) and hot media channel (4) upper and lower side are respectively upper chamber (2) and lower chamber (6), hot media channel (4) two ends communicate with upper chamber (2) and lower chamber (6) respectively, thermal medium inlet (1) is positioned on the upper chamber (2), and thermal medium outlet (7) is positioned on the lower chamber (6); All contain radiating fin in cooling air channels (3) and the hot media channel (4), and the radiating fin in each passage is partly formed by close heat exchange fin part and thin heat exchange fin, between close heat exchange fin part and the thin heat exchange fin part is cut-point, temperature is the radiator mean temperature on each cut-point, and the cut-point of the radiating fin in each passage is formed fin Region Segmentation line (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010590857 CN102052861B (en) | 2010-12-16 | 2010-12-16 | Plate-fin/tube-fin type radiator of vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010590857 CN102052861B (en) | 2010-12-16 | 2010-12-16 | Plate-fin/tube-fin type radiator of vehicle |
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| CN102052861A true CN102052861A (en) | 2011-05-11 |
| CN102052861B CN102052861B (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010590857 Expired - Fee Related CN102052861B (en) | 2010-12-16 | 2010-12-16 | Plate-fin/tube-fin type radiator of vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421357A (en) * | 2017-08-01 | 2017-12-01 | 江西清华泰豪三波电机有限公司 | Radiator and heat dissipation equipment |
| CN110501377A (en) * | 2019-09-21 | 2019-11-26 | 张家港市恒强冷却设备有限公司 | The check method of heat exchange fin area in air heat exchanger |
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| DE20003919U1 (en) * | 1999-03-04 | 2000-05-18 | Autokuehler Gmbh & Co Kg | Heat exchangers, especially for high temperature applications |
| CN2537583Y (en) * | 2002-03-01 | 2003-02-26 | 上海德尔福汽车空调系统有限公司 | Automobile air conditioner evaporator core of even temperature distribution |
| WO2004085947A1 (en) * | 2003-03-26 | 2004-10-07 | Behr Industry Gmbh & Co. Kg | Heat exchanger, in particular air/air cooler |
| CN101201228A (en) * | 2007-11-30 | 2008-06-18 | 西安交通大学 | Intensified convection heat-transferring mass-transferring integral inner finned tube structure |
| CN101408384A (en) * | 2007-10-11 | 2009-04-15 | 康奈可关精株式会社 | Heat exchanger |
| KR20100024686A (en) * | 2008-08-26 | 2010-03-08 | 한라공조주식회사 | Heat exchanger having tubes established to slant to the center |
| WO2010112654A1 (en) * | 2009-04-03 | 2010-10-07 | Universitat De Lleida | Heat exchanger |
| CN202018213U (en) * | 2010-12-16 | 2011-10-26 | 浙江大学 | Plate fin type or tube fin type radiator for vehicle |
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2010
- 2010-12-16 CN CN 201010590857 patent/CN102052861B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20003919U1 (en) * | 1999-03-04 | 2000-05-18 | Autokuehler Gmbh & Co Kg | Heat exchangers, especially for high temperature applications |
| CN2537583Y (en) * | 2002-03-01 | 2003-02-26 | 上海德尔福汽车空调系统有限公司 | Automobile air conditioner evaporator core of even temperature distribution |
| WO2004085947A1 (en) * | 2003-03-26 | 2004-10-07 | Behr Industry Gmbh & Co. Kg | Heat exchanger, in particular air/air cooler |
| CN101408384A (en) * | 2007-10-11 | 2009-04-15 | 康奈可关精株式会社 | Heat exchanger |
| CN101201228A (en) * | 2007-11-30 | 2008-06-18 | 西安交通大学 | Intensified convection heat-transferring mass-transferring integral inner finned tube structure |
| KR20100024686A (en) * | 2008-08-26 | 2010-03-08 | 한라공조주식회사 | Heat exchanger having tubes established to slant to the center |
| WO2010112654A1 (en) * | 2009-04-03 | 2010-10-07 | Universitat De Lleida | Heat exchanger |
| CN202018213U (en) * | 2010-12-16 | 2011-10-26 | 浙江大学 | Plate fin type or tube fin type radiator for vehicle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421357A (en) * | 2017-08-01 | 2017-12-01 | 江西清华泰豪三波电机有限公司 | Radiator and heat dissipation equipment |
| CN110501377A (en) * | 2019-09-21 | 2019-11-26 | 张家港市恒强冷却设备有限公司 | The check method of heat exchange fin area in air heat exchanger |
| CN110501377B (en) * | 2019-09-21 | 2021-09-17 | 张家港市恒强冷却设备有限公司 | Checking method for heat exchange fin area in air heat exchanger |
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| CN102052861B (en) | 2013-01-23 |
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Application publication date: 20110511 Assignee: Fu Allworld Visteon automotive heat exchange system (Changchun) Co., Ltd. Assignor: Zhejiang University Contract record no.: 2014220000006 Denomination of invention: Plate-fin/tube-fin type radiator of vehicle Granted publication date: 20130123 License type: Exclusive License Record date: 20140121 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20161216 |