CN207842599U - A kind of automotive air-conditioning system and its coaxial heat exchanger - Google Patents
A kind of automotive air-conditioning system and its coaxial heat exchanger Download PDFInfo
- Publication number
- CN207842599U CN207842599U CN201721646135.0U CN201721646135U CN207842599U CN 207842599 U CN207842599 U CN 207842599U CN 201721646135 U CN201721646135 U CN 201721646135U CN 207842599 U CN207842599 U CN 207842599U
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- Prior art keywords
- inner tube
- tube
- conditioning system
- automotive air
- heat exchanger
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 32
- 239000007788 liquid Substances 0.000 description 10
- 239000003507 refrigerant Substances 0.000 description 8
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Abstract
A kind of automotive air-conditioning system of the utility model offer and its coaxial heat exchanger.The automotive air-conditioning system includes compressor, condenser, evaporator, coaxial heat exchanger and throttling set, condenser and evaporator are by piping connection in the both ends of compressor, throttling set is by piping connection between condenser and evaporator, the coaxial heat exchanger includes the inner and outer tubes of coaxial arrangement, inner tube is heat conducting pipe recessed outside convex, media flow exocoel is formed between the inner wall of outer tube and the recessed portion of inner tube, the inner space of inner tube is formed with media flow inner cavity, inner tube is connected between evaporator and compressor, outer tube is connected between condenser and throttling set.
Description
Technical field
The utility model is related to automobile technical fields, and more particularly to a kind of automotive air-conditioning system and its coaxial heat exchanger.
Background technology
With the promotion of automobile making level, client requires the comfort of air-conditioning higher and higher.But traditional air conditioner pipeline
System is in the forward engine room of automobile, and heat evil is big, and dissipating-heat environment is poor, and heat exchange efficiency is low.It is traditional to improve the temperature reduction performance of air-conditioning
Method is to increase the refrigerating capacity of compressor performance and evaporator.But increase compressor performance, compressor weight and cost can be increased,
And increase evaporator capacity, the internal structure for adjusting air-conditioning box is needed, to need to increase new arrangement space.
Utility model content
In view of this, the utility model provides a kind of automotive air-conditioning system with higher heat exchange efficiency and its coaxial heat exchange
Device.
In order to achieve the above-mentioned advantages, the utility model provides a kind of coaxial heat exchanger for automotive air-conditioning system comprising interior
Pipe and outer tube, the outer tube sleeve are set to that said inner tube is outer and be coaxially disposed with said inner tube, the inner surface of said inner tube be equipped with to
The outer surface of several lug bosses protruded inside said inner tube, said inner tube is equipped with recessed portion corresponding with the lug boss,
Media flow exocoel is formed between the inner wall of the outer tube and the recessed portion of said inner tube, the inner space of said inner tube is formed
Media flow inner cavity.
Further, the outer tube is pipe, and said inner tube is heat conducting pipe recessed outside convex.
Further, the inner surface of said inner tube is equipped with several helicla flutes, and the helicla flute is prolonged by one end of said inner tube
Extend to the other end.
Further, the outer diameter of the part between adjacent projections of said inner tube is equal to the internal diameter of the outer tube.
In order to achieve the above-mentioned advantages, the utility model provides a kind of automotive air-conditioning system comprising compressor, condenser, evaporation
Device, coaxial heat exchanger and throttling set, the condenser and the evaporator by piping connection in the both ends of the compressor,
For the throttling set by piping connection between the condenser and the evaporator, the coaxial heat exchanger includes coaxially setting
The inner and outer tubes set, said inner tube are recessed heat conducting pipe outside convex, the inner wall of the outer tube and the recessed portion of said inner tube it
Between be formed with media flow exocoel, the inner space of said inner tube is formed with media flow inner cavity, and said inner tube is connected to described
Between evaporator and the compressor, the outer tube is connected between the condenser and the throttling set.
Further, the inner surface of said inner tube is equipped with to several lug bosses protruded inside said inner tube, said inner tube
Outer surface be equipped with recessed portion corresponding with the lug boss, the media flow exocoel be formed in the outer tube inner wall and
Between the recessed portion of said inner tube.
Further, the inner surface of said inner tube is equipped with several helicla flutes, and the helicla flute is prolonged by one end of said inner tube
Extend to the other end.
Further, the outer tube is pipe.
Further, the outer diameter of the part between adjacent projections of said inner tube is equal to the internal diameter of the outer tube.
Further, the cross section of said inner tube is " product " font.
In the automotive air-conditioning system of the utility model, the setting of coaxial heat exchanger can make between condenser and throttling set
Cold media gas between refrigerant liquid and evaporator and compressor carries out heat exchange, to improve the heat exchange of automotive air-conditioning system
Efficiency；Further, since the inner tube of coaxial heat exchanger is provided with multiple helicla flutes for heat conduction, with general smooth light
Pipe is compared, the heat transfer surface area with bigger, therefore can further increase the heat exchange efficiency of air-conditioning system；In addition, this practicality is new
The coaxial heat exchanger of type is without occupying additional space and additional fixed point, with periphery member without interference risk.
Description of the drawings
Fig. 1 is the schematic diagram of the automotive air-conditioning system of one embodiment of the utility model.
Fig. 2 is the structural schematic diagram of the coaxial heat exchanger of one embodiment of the utility model.
Specific implementation mode
Further to illustrate that the utility model is to reach the technical approach and effect that predetermined purpose of utility model is taken,
With reference to the accompanying drawings and embodiments, it to specific embodiment of the present utility model, structure, feature and its effect, is described in detail such as
Afterwards.
As shown in Figure 1, the air-conditioning system of the utility model includes compressor 10, condenser 20, evaporator 30, coaxial heat exchange
Device 40 and throttling set 50.Wherein, the entrance and exit of compressor 10 passes through pipeline and evaporator 30 and condenser 20 respectively
Be connected, the outlet of condenser 20 is connected by pipeline with the entrance of throttling set 50, the outlet of throttling set 50 by pipeline and
The entrance of evaporator 30 is connected.Between condenser 20 and throttling set 50 and between evaporator 30 and compressor 10
Part pipeline is arranged side by side, and constitutes a part for coaxial heat exchanger 40.Throttling set 50 in the present embodiment is expansion valve, but
In the other embodiments of the utility model, other suitable throttling sets can also be used.
The operation principle of the air-conditioning system is：Condensed 20 He of device of cold media gas of the high temperature and pressure come out from compressor 10
Coaxial heat exchanger 40 condenses, and the heat of cold media gas is discharged, and refrigerant continues flowing and passes through throttling set 50, becomes low-temp low-pressure
Refrigerant liquid, refrigerant liquid continues to flow, and flows through evaporator 30 and the heat absorption evaporation of coaxial heat exchanger 40, then enters back into compression
Machine 10 becomes the cold media gas of high temperature and pressure after compression, continues next working cycles.In two terminations of evaporator 30
There is freezing water circulation system, refrigerant absorbs heat herein reduces chilled water temperature, and the water of low temperature is made to flow to user terminal, using
Fan coil carries out heat exchange, and cold wind is blown out.
As shown in Fig. 2, the coaxial heat exchanger includes inner tube 1 and outer tube 2.Inner tube 1 is connected to evaporator 30 and compressor 10
Between, for passing through for the cold media gas of low-temp low-pressure between evaporator 30 and compressor 10, that is, inner tube 1 is evaporator 30
With the air intake duct between compressor 10, outer tube 2 is connected between condenser 20 and throttling set 50, for for condenser 20 and section
The refrigerant liquid of high temperature and pressure passes through between stream device 50, that is, liquid of the outer tube 2 between condenser 20 and throttling set 50
Pipe.Outer tube 2 is pipe, and surfaces externally and internally is smooth surface, is convenient for bend pipe and other processing.Inner tube 1 is recessed outside convex leads
Heat pipe, as shown in Fig. 2, the cross section of inner tube 1 substantially triangle disposition, inner surface is equipped with to the protrusion protruded inside inner tube 1
The outer surface in portion 11, inner tube 1 is equipped with recessed portion corresponding with lug boss 11.In addition, the inner surface of inner tube 1 is also machined with and is used for
The helicla flute (not shown) of heat conduction, the helicla flute extend to the other end, inner tube in a manner of extending spirally by one end of inner tube 1
1 is that common light pipe is processed into helix tube using the method for cold rolling.Outer tube 2 is sheathed on outside inner tube 1 and is coaxially set with inner tube 1
It sets, is formed with several media flow exocoels 21 between the inner wall of outer tube 2 and the outer wall of inner tube 1 in this way, and the inside of inner tube 1 is empty
Between then form media flow inner cavity 12.It is low-temp low-pressure medium to be flowed in media flow inner cavity 12, in media flow exocoel 21
Flowing is high-temperature high-pressure medium.In the present embodiment, low-temp low-pressure medium is to be flowed between evaporator 30 and compressor 10
Gas, high-temperature high-pressure medium is the liquid flowed between condenser 20 and throttling set 50, and the two flow direction on the contrary,
It can further improve heat exchange efficiency in this way.It should be noted that the outer diameter of the part between adjacent projections 11 of inner tube 1
Equal to the internal diameter of outer tube 2, inner tube 1 and outer tube 2 can so be fully bonded, to ensure the stable structure of coaxial heat exchanger 50
Property.
When the work of the air-conditioning system of the utility model, liquid flashes to gas under the action of evaporator 30, and low temperature is low
The gas of pressure flows in the media flow inner cavity 12 of inner tube 1 and flows to compressor 10, becomes high temperature after the compression of compressor 10
The gas of high pressure, the condensed device 20 of gas of high temperature and pressure cool down and become the liquid of high temperature and pressure, and the liquid of high temperature and pressure is again
Throttling set 50 is flowed to through media flow exocoel 21, then continues towards evaporator 30.It is flowed in media flow inner cavity 12 in this way
The medium of dynamic low-temp low-pressure and the medium of the high temperature and pressure flowed in media flow exocoel 21 can carry out heat exchange, and inside
The helicla flute for the multiple heat conduction being arranged in pipe 1 heat transfer surface area with bigger compared with general smooth light pipe, therefore its energy
Improve the type of flow of refrigerant, improves heat exchange efficiency.
In conclusion in the automotive air-conditioning system of the utility model, the setting of coaxial heat exchanger 40 can make condenser 20 with
Cold media gas between refrigerant liquid between throttling set 50 and evaporator 30 and compressor 10 carries out heat exchange, to improve
The heat exchange efficiency of automotive air-conditioning system；Further, since the inner tube of coaxial heat exchanger 1 is provided with multiple spiral shells for heat conduction
Spin slot, compared with general smooth light pipe, the heat transfer surface area with bigger, therefore changing for air-conditioning system can be further increased
The thermal efficiency；In addition, the coaxial heat exchanger of the utility model is without occupying additional space and additional fixed point, with periphery member without
Interfere risk.
The above is only the preferred embodiment of the present utility model, not makees limit in any form to the utility model
System, although the utility model has been disclosed with preferred embodiment as above, is not limited to the utility model, any to be familiar with sheet
Technical professional is not departing within the scope of technical solutions of the utility model, when the technology contents work using the disclosure above
Go out a little change or be modified to the equivalent embodiments of equivalent variations, as long as be without departing from the content of the technical scheme of the utility model, according to
According to the technical essence of the utility model to any simple modification, equivalent change and modification made by above example, still fall within
In the range of technical solutions of the utility model.
Claims (10)
1. a kind of coaxial heat exchanger of automotive air-conditioning system comprising inner tube (1) and outer tube (2), the outer tube (2) are sheathed on institute
It states inner tube (1) outside and is coaxially disposed with said inner tube (1), which is characterized in that the inner surface of said inner tube (1) is equipped with to described interior
Several lug bosses (11) protruded inside (1) are managed, the outer surface of said inner tube (1) is equipped with corresponding with the lug boss (11)
Recessed portion is formed with media flow exocoel (21) between the inner wall and the recessed portion of said inner tube (1) of the outer tube (2), described
The inner space of inner tube (1) forms media flow inner cavity (12).
2. the coaxial heat exchanger of automotive air-conditioning system as described in claim 1, which is characterized in that the outer tube (2) is pipe,
Said inner tube (1) is heat conducting pipe recessed outside convex.
3. the coaxial heat exchanger of automotive air-conditioning system as described in claim 1, which is characterized in that the interior table of said inner tube (1)
Face is equipped with several helicla flutes, and the helicla flute extends to the other end by the one end of said inner tube (1).
4. the coaxial heat exchanger of automotive air-conditioning system as described in claim 1, which is characterized in that said inner tube (1) is located at
The outer diameter of part between adjacent projections (11) is equal to the internal diameter of the outer tube (2).
5. a kind of automotive air-conditioning system, including compressor (10), condenser (20), evaporator (30) and throttling set (50), institute
Condenser (20) and the evaporator (30) are stated by piping connection in the both ends of the compressor (10), the throttling set
(50) by piping connection between the condenser (20) and the evaporator (30), which is characterized in that the air conditioning for automobiles
System further comprises that coaxial heat exchanger (40), the coaxial heat exchanger (40) include the inner tube (1) and outer tube of coaxial arrangement
(2), said inner tube (1) is heat conducting pipe recessed outside convex, between the inner wall and the recessed portion of said inner tube (1) of the outer tube (2)
It is formed with media flow exocoel (21), the inner space of said inner tube (1) is formed with media flow inner cavity (12), said inner tube
(1) be connected between the evaporator (30) and the compressor (10), the outer tube (2) be connected to the condenser (20) with
Between the throttling set (50).
6. automotive air-conditioning system as claimed in claim 5, which is characterized in that the inner surface of said inner tube (1) is equipped with to described
Several lug bosses (11) protruded inside inner tube (1), the outer surface of said inner tube (1) is equipped with corresponding with the lug boss (11)
Recessed portion, the media flow exocoel (21) be formed in the outer tube (2) inner wall and said inner tube (1) recessed portion it
Between.
7. automotive air-conditioning system as claimed in claim 5, which is characterized in that the inner surface of said inner tube (1) is equipped with several spiral shells
Spin slot, the helicla flute extend to the other end by the one end of said inner tube (1).
8. automotive air-conditioning system as claimed in claim 5, which is characterized in that the outer tube (2) is pipe.
9. automotive air-conditioning system as claimed in claim 5, which is characterized in that said inner tube (1) is located at adjacent projections
(11) outer diameter of the part between is equal to the internal diameter of the outer tube (2).
10. automotive air-conditioning system as claimed in claim 5, which is characterized in that the cross section of said inner tube (1) is " product " word
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721646135.0U CN207842599U (en) | 2017-11-30 | 2017-11-30 | A kind of automotive air-conditioning system and its coaxial heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721646135.0U CN207842599U (en) | 2017-11-30 | 2017-11-30 | A kind of automotive air-conditioning system and its coaxial heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207842599U true CN207842599U (en) | 2018-09-11 |
Family
ID=63423065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721646135.0U Expired - Fee Related CN207842599U (en) | 2017-11-30 | 2017-11-30 | A kind of automotive air-conditioning system and its coaxial heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207842599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113291123A (en) * | 2021-06-28 | 2021-08-24 | 上海应用技术大学 | Novel spiral coaxial tube heat exchanger for automobile air conditioner |
-
2017
- 2017-11-30 CN CN201721646135.0U patent/CN207842599U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113291123A (en) * | 2021-06-28 | 2021-08-24 | 上海应用技术大学 | Novel spiral coaxial tube heat exchanger for automobile air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |