CN105333755A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- CN105333755A CN105333755A CN201410385113.8A CN201410385113A CN105333755A CN 105333755 A CN105333755 A CN 105333755A CN 201410385113 A CN201410385113 A CN 201410385113A CN 105333755 A CN105333755 A CN 105333755A
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- CN
- China
- Prior art keywords
- outer sleeve
- heat exchanger
- sleeve
- inner sleeve
- described outer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000010721 machine oil Substances 0.000 claims description 27
- 239000002826 coolant Substances 0.000 claims description 19
- 238000005452 bending Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 15
- 239000010705 motor oil Substances 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000004378 air conditioning Methods 0.000 description 5
- 238000004134 energy conservation Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 208000016261 weight loss Diseases 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a heat exchanger, in particular to a heat exchanger for a car. The heat exchanger comprises an external sleeve for circulation of a first heat exchange medium and an internal sleeve for circulation of a second heat exchange medium, wherein the internal sleeve is sleeved with the external sleeve and extends in the external sleeve, and circulation pipes of the external sleeve and the internal sleeve are isolated in a sealed manner; and heat exchange can be carried out through the first heat exchange medium and the second heat exchange medium through a pipe wall of the internal sleeve. By means of the heat exchanger, the heat exchange efficiency is better improved; when the heat exchanger is used in the car, the function of an oil cooler and the function of a warm air core are integrated to the heat exchanger, the requirement for a hot air conditioner of a passenger compartment can be met while engine oil of a speed changing box is cooled, the overall vehicle part number is decreased, the requirement for the space is reduced, the car weight and the oil consumption can be reduced, and the system economical efficiency is improved.
Description
Technical field
The present invention relates to the field of energy-saving technology for fluid exchange heat; Specifically, the present invention relates to a kind of heat exchanger, in particular for the heat exchanger of automobile.
Background technology
On the automobile carrying automatic gear-box, generally the cooling fluid after cooled engine is used for the hot air conditioning requirements of passenger compartment and the cooling demand of gearbox.Such as, the oil temperature of automobile gearbox machine oil can be reduced by engine coolant and gearbox machine oil " liquid-liquid heat exchange " at oil cooler place; Hot air conditioning requirements in passenger compartment then makes atmosphere temperature rising by air and engine coolant in the heat exchange (solution-air heat exchange) at heater cores place and the transfer of air after heating up is entered passenger compartment to meet.
Visible, need to arrange oil cooler, heater cores and associated pipe etc. in automobile front chamber, cause automobile front chamber space crowded, be unfavorable for the layout of front deck part.
In addition, the cooling fluid in engine water jacket is generally driven by engine water pump; In some energy-conservation vehicle, be also provided with auxiliary pump, then start auxiliary pump when engine water pump is shut down, the engine coolant of now inner sleeve flowing is driven by auxiliary pump.The warm braw of the air conditioning for automobiles of prior art can only from the heat exchange of heater cores and air, and need the continuous service of engine water pump or auxiliary pump, energy-saving effect is not good enough.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of heat exchanger overcoming aforementioned drawback of the prior art.Further, present invention also offers a kind of heat exchanger for automobile.
In order to solve aforementioned technical problem, provide a kind of heat exchanger according to a first aspect of the invention, described heat exchanger comprises:
For the outer sleeve of the first heat transferring medium circulation; And
For the inner sleeve of the second heat transferring medium circulation,
Wherein, described outer sleeve is enclosed within the outside of described inner sleeve, described inner sleeve extends in the inside of described outer sleeve, and the flow pipe of described outer sleeve and described inner sleeve is isolated hermetically, described first heat transferring medium and described second heat transferring medium can carry out heat exchange by the tube wall of described inner sleeve.
Alternatively, in foregoing heat exchanger, described outer sleeve and the bending extension of described inner sleeve.
Alternatively, in foregoing heat exchanger, inside the tube wall tube wall of described outer sleeve being provided with outside fin and/or described outer sleeve, be provided with inner fins.
Alternatively, in foregoing heat exchanger, described inner sleeve is inner in wave shape bending at described outer sleeve.
In order to solve aforementioned technical problem, provide a kind of heat exchanger for automobile according to a second aspect of the invention, described heat exchanger comprises:
For the outer sleeve of gearbox machine oil circulation; And
For the inner sleeve of engine coolant circulation,
Wherein, described outer sleeve is enclosed within the outside of described inner sleeve, described inner sleeve extends in the inside of described outer sleeve, and the flow pipe of described outer sleeve and described inner sleeve is isolated hermetically, described gearbox machine oil and described engine coolant can carry out heat exchange by the tube wall of described inner sleeve.
Alternatively, in foregoing heat exchanger, described outer sleeve connects the oil-cooled tube of gearbox machine oil and/or the cooling jacket of described inner sleeve connecting engine.
Alternatively, in foregoing heat exchanger, described outer sleeve and the bending extension of described inner sleeve.
Alternatively, in foregoing heat exchanger, described inner sleeve is inner in wave shape bending at described outer sleeve.
Alternatively, in foregoing heat exchanger, the tube wall of described outer sleeve is provided with fin, and is outside equipped with at described outer sleeve can flows through from described outer sleeve surface and be caused the blower fan of automobile passenger compartment by the air of its heating.
Alternatively, in foregoing heat exchanger, inside the tube wall of described outer sleeve, be provided with inner fins, and the cross section of described inner fins radially inwardly narrows gradually.
As previously mentioned, the present invention proposes the heat exchanger comprising internal and external casing.Time in for automobile, this heat exchanger is integrated with the function of oil cooler and heater cores, at the hot air conditioning requirements providing passenger compartment for gearbox is oil-cooled simultaneously, can decrease car load number of parts and the demand to space, also can reduce car weight and oil consumption, improve system economy.
Accompanying drawing explanation
With reference to accompanying drawing, disclosure of the present invention will become more obvious.Should understand, these accompanying drawings only for illustration of object, and be not intended to limit protection scope of the present invention.In figure:
Fig. 1 is the schematic diagram of the heat exchanger according to one embodiment of the present invention; And
Fig. 2 is the cross sectional representation of the outer sleeve of the heat exchanger of aforementioned embodiments.
Detailed description of the invention
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
Fig. 1 is the schematic diagram of the heat exchanger according to one embodiment of the present invention.In FIG, Reference numeral 1 represents the outer sleeve of heat exchanger, and 11 represent outer sleeve entrance, and 12 represent outer sleeve outlet, the inner sleeve of 2 expression heat exchangers, and 21 represent inner sleeve entrances, and 22 represent inner sleeve outlet, and 3 represent fin.Each arrow in figure represents the outer sleeve 1 of heat exchanger and the flow direction of inner sleeve 2 medium.A bar casing tube is only illustrated in Fig. 1; But can understand, in a particular application, many bar casing tubes can be selected to connect or use in parallel.
Outer sleeve 1 is enclosed within the outside of inner sleeve 2, inner sleeve 2 extends in the inside of outer sleeve 1.In use, the first heat transferring medium can flow into from outer sleeve entrance 11, and in the tube wall of outer sleeve 1, the tube wall of inner sleeve 2 flows outward, and flow out from outer sleeve outlet 12.Second heat transferring medium then can flow into from inner sleeve entrance 21, flows in the tube wall of inner sleeve 2, and flows out from inner sleeve outlet 22.The pipeline sealing isolation of outer sleeve 1 and inner sleeve 2, the first heat transferring medium can not directly contact with the second heat transferring medium.In heat transferring medium flowing process, when having the temperature difference between the first heat transferring medium and the second heat transferring medium, the two will carry out heat exchange at the tube wall place of inner sleeve 2, realizes the transfer of heat between the first heat transferring medium and the second heat transferring medium.In addition, can understand, the 3rd heat transferring medium can also be had outside the tube wall of outer sleeve 1 to flow through, now, when there is the temperature difference between the first heat transferring medium and the 3rd heat transferring medium, the two will carry out heat exchange at the tube wall place of outer sleeve 1, realizes the transfer of heat between the first heat transferring medium and the 3rd heat transferring medium.Can understand, the first heat transferring medium, the second heat transferring medium and the 3rd heat transferring medium can be fluid, such as gas or liquid etc., and can be same to each other or different to each other.
It is bent that outer sleeve 1 as shown in the figure and inner sleeve 2 form multiple U-bend, and the extension of inner sleeve 2 in outer sleeve 1 is arranged essentially parallel to outer sleeve 1.Should understand, outer sleeve 1 and outer sleeve 2 also can form the bending of other shape.The advantage of this curved design mode is the abundant heat exchange stroke that both ensure that heat transferring medium in two sleeve pipes, and can be convenient to manufacture.In order to realize heat exchange more fully, those skilled in the art can increase the bending of outer sleeve 1 and/or inner sleeve 2, such as, inner sleeve 2 can have the bending section of such as waveform etc. in outer sleeve 1, like this by extend heat transferring medium in inner sleeve 2 stroke, increase heat exchange area and increase heat exchange efficiency.
Those skilled in the art can also understand, and the cross sectional shape of outer sleeve 1 and inner sleeve 2 also can have different designs to be applicable to concrete applicable cases.Such as, these sleeve pipes can be and have circular cross-section in this example.Under enlightenment of the present invention, the sleeve pipe of other cross-sectional geometry also can be expected.
Also be provided with outside fin 3 between the Liang Ge branch of the outer sleeve U-shaped of shown heat exchanger in FIG, on outside the tube wall that these outside fin 3 are preferably welded on outer sleeve 1, the thermal resistance outside outer sleeve 1 can be reduced.When multiple outer sleeve sets in a row, also can be welded with outside fin between outboard tube row, play the effect reducing thermal resistance outside outer sleeve equally.
In addition, can also inner fins be designed with inside the tube wall of outer sleeve 1, make outer sleeve 1 become interior wing heat exchanger tube, thus thermal resistance inside the tube wall of reduction outer sleeve 1, improve the heat exchange efficiency of heat transferring medium and other heat transferring medium in outer sleeve 1.Fig. 2 is the cross sectional representation of the outer sleeve of the heat exchanger of aforementioned embodiments.In fig. 2, Reference numeral 13 represents the inner fins of outer sleeve 1, and a represents the first heat transferring medium stream, and b represents the second heat transferring medium stream.Although schematically show inner sleeve 2 with lines in FIG, as can be seen from Figure 2, the cross section of inner sleeve 2 is circular pipe; This cross section also can elect other shape as.Dash area shows the cross section of outer sleeve 1.It is depicted as the inner fins radially extended internally in the present embodiment, and more obvious in order to make to reduce thermal resistance effect inside tube wall, it narrows gradually along with radially inside extension.
Briefly heat exchanger according to the present invention is described above; Next more specific description will be carried out in conjunction with heat exchanger for automobile.Should understand, before the shape facility of composition graphs 1 and the heat exchanger described by Fig. 2 and parts thereof and architectural feature etc. be all suitable for the technical scheme of the heat exchanger described in conjunction with automobile as follows, so will no longer redescribe these features below.
Such as, in optional detailed description of the invention, this heat exchanger can form the multifunctional heat exchanger being integrated with oil cooler and heater cores.As oil cooler, gearbox machine oil flows in outer sleeve 1, as aforesaid first heat transferring medium; Engine coolant flows in inner sleeve 2, as aforesaid second heat transferring medium.Outer sleeve entrance 11 is gearbox engine oil inlet, and outer sleeve outlet 12 is the outlet of gearbox machine oil; Inner sleeve entrance 21 is engine coolant import, and inner sleeve outlet 22 is engine coolant outlet; It is the outside fin of welding between the outer wall of the U-shaped branch of outer sleeve 1.Because gearbox machine oil and engine coolant are normal opens, therefore heat exchanger continuously effective when driving a vehicle is used.As heater cores, gearbox machine oil is as the first heat transferring medium in outer sleeve 1, and the air flowing through outer sleeve 1 outside then as the 3rd heat transferring medium, can become the warm braw that be blown into passenger compartment in after carrying out heat exchange with outer sleeve 1.
This heat exchanger can both use in automatic gear-box vehicle.High temperature gearbox machine oil in oil cooler needs cooling, and the ECT in heater cores is lower than gearbox machine oil temperature, and therefore, it is feasible for completing heat exchange between the two.Meanwhile, present automobile front chamber arrangement space is limited, " unites two into one " very useful to front deck arrangement of parts according to the present invention by oil cooler and heater cores.
Those skilled in the art understands, when automobile carries type variable water pump, under energy-conservation operating mode, kill engine water pump time, passenger, by starting the engine coolant circulation in auxiliary pump operation heater cores, reaches energy-conservation effect while guarantee passenger compartment thermal comfort.Under such conditions, the multifunctional heat exchanger described in aforementioned embodiments of the present invention also part can substitute auxiliary pump even completely, cools multifunctional heat exchanger by air blast, and air can be made equally to improve temperature.Like this, the gearbox machine oil in outer sleeve, as the thermal source of air-conditioning, enters passenger compartment via air blast blowing and can play the effect heated.If this heat is enough large, then can cancels the engine coolant flowing of heater cores side completely, thus substitute auxiliary pump.If heat is large not enough after measuring and calculating, then at least can reduces the power of existing auxiliary pump, reach energy-conservation effect.
Can understand, the outer sleeve of this multifunctional heat exchanger for automobile is entered through oil-cooled tube by gearbox machine oil, and flows out from outer sleeve outlet; Heat exchanger inner sleeve is entered by engine coolant, and flows out from inner sleeve outlet.Like this, the gearbox machine oil in outer sleeve is higher, needs to be effectively cooled as high-temperature medium; The engine coolant relative temperature flowed in its inner sleeve is lower, can play cooling effect as cryogenic media.Therefore, both directly carry out heat exchange by tube wall, utilize engine coolant to cool gearbox machine oil.Outside fin between outer sleeve outboard tube row can reduce air side thermal resistance.Because gearbox machine oil flow velocity is comparatively slow, therefore will be designed to interior wing heat exchanger tube inside outer sleeve, reduces oily side thermal resistance, thus improve " oil-air " heat transfer intensity.Can outside fin be welded with between outer sleeve, can be cooled the gearbox machine oil in described outer sleeve by air stream.Outer sleeve inner section is interior wing pipe, its object is to reduce gearbox machine oil side thermal resistance, improves gearbox machine oil side heat transfer intensity.
Visible, this heat exchanger is made up of two circuits, and internal duct is engine coolant stream, and exterior line is gearbox machine oil stream.This two circuits forms sleeve heat exchanger pipe racks.The gearbox machine oil of outer cover Bottomhole pressure is flowed out by gearbox, after supercooling, pass back into gearbox, and its driving process is performed by gearbox lubricating oil pump.The engine coolant of internal sleeve Bottomhole pressure; flowed out by engine water jacket; engine is got back to after heat exchange; when engine water pump is shut down; when gearbox lubricating oil pump is often left; the gearbox machine oil of outer sleeve and air still can carry out heat exchange, can reduce depending on actual heat transfer effect the function that auxiliary pump power replaces auxiliary pump even completely.
Obvious according to the energy-conservation of heat exchanger of the present invention and weight loss effect, arrangement of parts space can be saved simultaneously.From material weight, traditional vehicle uses oil cooler and heater cores two overlap heat exchanger, the present invention then can save a set of heat exchanger, plays loss of weight effect, thus reduces oil consumption.From the angle of using energy source, effectively can utilize the oil temperature of gearbox machine oil, make it for passenger compartment thermal source, the utilization of this part used heat, improve the economy of whole heat-exchange system.Simultaneously, when device is mounted in the diesel locomotive of applicating energy-saving type water pump, when inner sleeve circulation (engine coolant enters the circulation of heater cores) stops, the heat energy (external fluid and gearbox machine oil are still in running) that still can be provided for passenger compartment by the effect of oil pump, in this case, the effect of auxiliary pump can partly even all be replaced.
If the front description carried out the preferred embodiment of the present invention is with reference to the accompanying drawings only exemplary and explanat; Those skilled in the art also can carry out accommodation or the remodeling of equivalent or similar type under teaching herein to the preferred embodiment of the present invention, these flexible or remodeling also will fall in the protection domain that covered by claims of the present invention.
Claims (10)
1. a heat exchanger, is characterized in that, described heat exchanger comprises:
For the outer sleeve of the first heat transferring medium circulation; And
For the inner sleeve of the second heat transferring medium circulation,
Wherein, described outer sleeve is enclosed within the outside of described inner sleeve, described inner sleeve extends in the inside of described outer sleeve, and the flow pipe of described outer sleeve and described inner sleeve is isolated hermetically, described first heat transferring medium and described second heat transferring medium can carry out heat exchange by the tube wall of described inner sleeve.
2. heat exchanger as claimed in claim 1, wherein, described outer sleeve and the bending extension of described inner sleeve.
3. heat exchanger as claimed in claim 2, wherein, is provided with inner fins inside the tube wall tube wall of described outer sleeve being provided with outside fin and/or described outer sleeve.
4. heat exchanger as claimed in claim 1 or 2, wherein, described inner sleeve is inner in wave shape bending at described outer sleeve.
5. for a heat exchanger for automobile, it is characterized in that, described heat exchanger comprises:
For the outer sleeve of gearbox machine oil circulation; And
For the inner sleeve of engine coolant circulation,
Wherein, described outer sleeve is enclosed within the outside of described inner sleeve, described inner sleeve extends in the inside of described outer sleeve, and the flow pipe of described outer sleeve and described inner sleeve is isolated hermetically, described gearbox machine oil and described engine coolant can carry out heat exchange by the tube wall of described inner sleeve.
6. heat exchanger as claimed in claim 5, wherein, described outer sleeve connects the oil-cooled tube of gearbox machine oil and/or the cooling jacket of described inner sleeve connecting engine.
7. heat exchanger as claimed in claim 6, wherein, described outer sleeve and the bending extension of described inner sleeve.
8. the heat exchanger according to any one of claim 5 to 7, wherein, described inner sleeve is inner in wave shape bending at described outer sleeve.
9. heat exchanger as claimed in claim 8, wherein, the tube wall of described outer sleeve is provided with fin, and is outside equipped with at described outer sleeve can flows through from described outer sleeve surface and be caused the blower fan of automobile passenger compartment by the air of its heating.
10. the heat exchanger according to any one of claim 5 to 9, wherein, is provided with inner fins inside the tube wall of described outer sleeve, and the cross section of described inner fins radially inwardly narrows gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385113.8A CN105333755A (en) | 2014-08-07 | 2014-08-07 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385113.8A CN105333755A (en) | 2014-08-07 | 2014-08-07 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105333755A true CN105333755A (en) | 2016-02-17 |
Family
ID=55284417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410385113.8A Pending CN105333755A (en) | 2014-08-07 | 2014-08-07 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105333755A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109579050A (en) * | 2018-12-29 | 2019-04-05 | 苏州协宏泰节能科技有限公司 | Pincushion plate-fin propeller for turboprop machine heat exchanger |
| CN110345781A (en) * | 2019-06-25 | 2019-10-18 | 徐州三美电器科技有限公司 | It is a kind of for producing the cooling device of metal working fluid |
| CN112297766A (en) * | 2020-10-30 | 2021-02-02 | 东风小康汽车有限公司重庆分公司 | Heat management system of automobile and automobile |
| CN115046184A (en) * | 2022-07-13 | 2022-09-13 | 中建八局轨道交通建设有限公司 | Waste heat field utilization device of shield machine and waste heat utilization method of shield machine |
-
2014
- 2014-08-07 CN CN201410385113.8A patent/CN105333755A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109579050A (en) * | 2018-12-29 | 2019-04-05 | 苏州协宏泰节能科技有限公司 | Pincushion plate-fin propeller for turboprop machine heat exchanger |
| CN110345781A (en) * | 2019-06-25 | 2019-10-18 | 徐州三美电器科技有限公司 | It is a kind of for producing the cooling device of metal working fluid |
| CN110345781B (en) * | 2019-06-25 | 2021-02-26 | 徐州三美电器科技有限公司 | Cooling device for producing metal working fluid |
| CN112297766A (en) * | 2020-10-30 | 2021-02-02 | 东风小康汽车有限公司重庆分公司 | Heat management system of automobile and automobile |
| CN115046184A (en) * | 2022-07-13 | 2022-09-13 | 中建八局轨道交通建设有限公司 | Waste heat field utilization device of shield machine and waste heat utilization method of shield machine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160217 |