CN208579662U - A kind of built-in water-cooling heat exchanger for sound energy free-piston type machine - Google Patents
A kind of built-in water-cooling heat exchanger for sound energy free-piston type machine Download PDFInfo
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- CN208579662U CN208579662U CN201721828803.1U CN201721828803U CN208579662U CN 208579662 U CN208579662 U CN 208579662U CN 201721828803 U CN201721828803 U CN 201721828803U CN 208579662 U CN208579662 U CN 208579662U
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Abstract
The utility model discloses a kind of built-in water-cooling heat exchangers for sound energy free-piston type machine, including fin, water jacket outer housing, water jacket inner housing and heat exchange inner fin outside sequentially connected heat exchange, water side stream passages are equipped between water jacket outer housing, water jacket inner housing, it is equipped with feed flow collector at the combination of water jacket outer housing and water jacket inner housing upper and lower ends and returns liquid collector, the inner wall of the outer wall for the outer fin that exchanges heat and the inner fin that exchanges heat is respectively equipped with radiating fin group；The beneficial effects of the utility model are: using the structure of built-in water-cooling heat exchanger, effectively reduce thermal contact resistance, reduce heat transfer temperature difference, improve the machine thermal efficiency, compared to traditional air cooling fin formula heat exchanger, water cooling heat exchange has higher heat transfer coefficient, is not necessarily to add fin or water jacket on the outside of refrigeration machine, keeps complete machine structure more compact.
Description
Technical field
The utility model is to be related to a kind of built-in water-cooling heat exchanger, is to be related to one kind for sound energy free-piston specifically
The built-in water-cooling heat exchanger of formula machine belongs to the sound energy free-piston type in technical field of heat exchange, especially field of heat exchange
The design and manufacture of machine hot-side heat dissipation body.
Background technique
1861, Stirling proposed a kind of by two isotherm compressions and expansion process and the appearance heat recovery process groups such as two
At enclosed thermodynamic cycle, referred to as Stirling cycle, that is, the basic thermodynamic principles of sound energy free-piston type machine.
Sound energy free-piston type heat engine generates this thermoacoustic phenomenon of self-oscillation using heat in pressed gas, can be by thermal energy
Pressure oscillation (sound energy) is converted to, to realize that thermal energy is converted into mechanical energy.On the contrary, sound energy free-piston type refrigeration machine utilizes heat
Sound back wash effect, which may be implemented to absorb heat from low-temperature heat source, to be discharged again to the process of refrigerastion of high temperature heat source.Sound energy free-piston type machine tool
Have many advantages, such as, such as: a. uses inert gas as working medium, therefore not will lead to ozone layer destroying and greenhouse effects.B. basic
Structure is very simple and compact, service life length, high reliablity.C. oil-free lubrication and Gap Sealing Technology are used, any angle can be just
Often operation.
Hot end heat exchanger plays overall performance vital as the critical component in sound energy free-piston type machine
It influences, if hot end heat exchange is insufficient, the Energy Efficiency Ratio of complete machine can decline to a great extent.Traditional hot end heat exchanger is mostly used slit
Heat exchanger is placed in the annular space between cylinder and casing, and slit heat exchanger outside wall surface is close to casing inner wall face.Such structure institute
Bring adverse effect is that there is biggish thermal contact resistances with casing inner wall face for slit heat exchanger, and casing is usually steel,
Thermal coefficient is lower, so cause hot end heat exchange insufficient, the decline of refrigeration machine performance, and due to installing wing additional again outside casing
Piece increases machine volume.
Utility model content
In order to solve the above-mentioned technical problem and technical need, the utility model proposes one kind to be used for sound energy free-piston type machine
The built-in water-cooling heat exchanger of device, gas working medium and the outer fin of heat exchange and heat exchange inner fin come into full contact with heat exchange, and then heat is passed
It is directed at water jacket shell, recirculated water flows through water jacket outer housing and water jacket inner housing combines the water effluent circulation passage to be formed, can be certainly by sound
The heat derives generated by reciprocator hot end.
To achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of built-in water-cooling heat exchanger for sound energy free-piston type machine, it is characterised in that: the built-in water-cooling changes
Hot device is circle, including fin, water jacket outer housing, water jacket inner housing and heat exchange inner fin outside sequentially connected heat exchange, outside water jacket
It is equipped with water side stream passages between shell, water jacket inner housing, is equipped at water jacket outer housing and the combination of water jacket inner housing upper and lower ends
The inner wall of feed flow collector and time liquid collector, the outer wall for the outer fin that exchanges heat and the inner fin that exchanges heat is respectively equipped with radiating fin group.
Preferably, the water side stream passages include the table that water jacket outer housing is connect with water jacket inner housing in the two
Face is provided with the groove that multiple cricoid, sections are rectangle, and the groove on water jacket outer housing and water jacket inner housing collectively constitutes water side
Circulation passage.
Preferably, the water jacket outer housing, water jacket inner housing upper groove be to mutually stagger and be arranged.
Preferably, the water jacket outer housing and water jacket inner housing upper and lower ends have semi arch boss, and prolong
It reaches inside and forms conical socket, combination constitutes the feed flow collector of water side and returns liquid collector.
As further preferred scheme, it is respectively equipped with inlet tube on the feed flow collector and time liquid collection interface tube and returns liquid
Pipe, the water jacket outer housing, water jacket inner housing lower end be equipped with connection boss.
As further preferred scheme, as further preferred scheme, the cricoid recess width be about 0.5mm~
2mm, height are about 0.3mm~1mm, and each groove spacing is 0.5mm~2mm.
As further preferred scheme, wing in the outer fin of the heat exchange and water jacket outer housing, water jacket inner housing and heat exchange
Using welded connecting between piece.
Compared with prior art, the utility model has the following beneficial effects:
The utility model effectively reduces thermal contact resistance by using the structure of built-in water-cooling heat exchanger, reduces heat transfer temperature
Difference improves the machine thermal efficiency；Compared to traditional air cooling fin formula heat exchanger, water cooling heat exchange has higher heat transfer coefficient；System
Without adding fin or water jacket on the outside of cold, keep complete machine structure more compact.
Detailed description of the invention
Fig. 1 is water jacket outer housing shaft side figure provided by the utility model；
Fig. 2 is water jacket inner housing axonometric drawing provided by the utility model；
Fig. 3 is water jacket cross-sectional view provided by the utility model；
Fig. 4 is built-in water-cooling heat exchanger assembly explosive view provided by the utility model；
Fig. 5 is built-in water-cooling heat exchanger provided by the utility model and casing sectional arrangement drawing；
Fig. 6 is fin design figure provided by the utility model.
Specific embodiment
A kind of built-in water-cooling heat exchanger for sound energy free-piston type machine, the built-in water-cooling heat exchanger are circle,
Including fin outside sequentially connected heat exchange, water jacket outer housing, water jacket inner housing and heat exchange inner fin, in water jacket outer housing, water jacket
It is equipped with water side stream passages between shell, feed flow collector is equipped at the combination of water jacket outer housing and water jacket inner housing upper and lower ends and returns
The inner wall of liquid collector, the outer wall for the outer fin that exchanges heat and the inner fin that exchanges heat is respectively equipped with radiating fin group.Outside the outer fin of heat exchange, water jacket
Shell, water jacket inner housing and heat exchange inner fin are circular appearance, and diameter successively reduces, to form nested arrangements structure, heat dissipation
Fins set includes the sheet metal that multi-disc arranges at a certain distance.
The water side stream passages include that water jacket outer housing with water jacket inner housing is provided with multiple rings on the surface that the two is connect
Shape, groove that section is rectangle, the groove on water jacket outer housing and water jacket inner housing collectively constitute water effluent circulation passage.
The upper groove of the water jacket outer housing, water jacket inner housing is to mutually stagger to be arranged.Mutually stagger arrangement
The groove of setting can make water flow constitute hybrid channel, have biggish contact effect with water jacket outer housing, water jacket inner housing.
The water jacket outer housing and water jacket inner housing upper and lower ends has semi arch boss, and extends to inside and form cone
Connected in star, combination constitute the feed flow collector of water side and return liquid collector.Conical socket has guiding role to water flow, and water flow can be improved
Flow velocity.
Inlet tube and liquid back pipe, the water jacket shell are respectively equipped on the feed flow collector and time liquid collection interface tube
Body, water jacket inner housing lower end be equipped with connection boss.Connection boss, which is used to erect in this radiator, is supported on cylindric casing
In.
The cricoid recess width is about 0.5mm~2mm, and height is about 0.3mm~1mm, and each groove spacing is
0.5mm~2mm.
Using welded connecting between the outer fin of the heat exchange and water jacket outer housing, water jacket inner housing and heat exchange inner fin.
The technical solution of the utility model is described in further detail below in conjunction with attached drawing:
In conjunction with shown in Fig. 1 to Fig. 6, a kind of built-in water-cooling for sound energy free-piston type machine provided by the utility model
Heat exchanger include include heat exchange fin 100, water jacket 200, inlet tube 301, outlet tube 302, casing 400, wherein heat exchange fin
100, water jacket 200, inlet tube 301,302 material of outlet tube are red copper, and the heat exchange fin 100 includes the outer fin 110 that exchanges heat
With heat exchange inner fin 120.The water jacket includes water jacket outer housing 210 and water jacket inner housing 220.
As shown in Figure 1 and Figure 2,210 inner surface of water jacket outer housing is provided with rectangular recess 211, and upper and lower ends have semicircle
There are conical socket 213 in arc boss 212, inside.211 width of rectangular recess is about 0.5mm-2mm, and height is about 0.3mm-
1mm, each groove spacing are 0.5mm-2mm.
The water jacket inner housing 220 is similar with 210 structure of water jacket outer housing, is provided with rectangular recess 221 in outer side surface, on
There is semi arch boss 222 at lower both ends, and there is conical socket 223 in inside.
As shown in figure 3, the water jacket outer housing 210 is welded and fixed with water jacket inner housing 220 in welding surface 214,224, water
Set inner and outer shell collectively constitutes water effluent circulation passage 201, feed flow collector 202 and returns liquid collector 203.Feed flow collector 202 and time liquid
Collector 203 is tapered, in, close end cross-sectional area reduction larger close to cross-sectional area at welding surface 204.With feed flow collector
Illustrate its working principle: streamwise (dotted arrow) for 202, the recirculated water in feed flow collector 202 flows through several water
Total flow declines after effluent circulation passage 201, in order to keep static pressure in feed flow collector 202 consistent, supplies so streamwise reduces
The cross-sectional area of liquid collector 202, to increase close to end recirculated water flow velocity, so that in each water effluent circulation passage 201
Uniform flow improves heat exchange efficiency.
As shown in figure 4, the outer fin 110 of the heat exchange and heat exchange 120 upper and lower ends of inner fin have semicircle groove 111,
121, it cooperates with the semi arch boss 212,222 of water jacket outer housing 210 and water jacket inner housing 220.The semicircle groove
111, the finned length at 121 is slightly shorter than other finned lengths.The outer fin 110 of heat exchange is with water jacket outer housing 210 in welding surface 215
It is welded and fixed, 120 are welded and fixed with water jacket inner housing 220 in welding surface 225 under the heat exchange fin.
As shown in figure 5, the inlet tube 301, outlet tube 302 are welded and fixed in welding surface 204 and water jacket 200, with
Guarantee that water will not leak out to refrigerating device inner.It is welded and fixed in welding surface 401 and casing 400, to guarantee refrigeration machine entirety
Do not occur Working medium gas leakage.
As shown in Figure 1, Figure 2, Figure 5, the lower surface of the water jacket outer housing 210 and water jacket inner housing 220 is convex equipped with 4
Platform, 216,226 height of boss is about 1mm, and boss 216,226 resists the supporting surface 402 of casing 400, working gas (usually helium
Gas) annular space 403 can be radially flowed through, heat exchange fin 100 is then extended axially through, main purpose is preferably to utilize
The heat exchange area of the outer fin 110 of heat exchange, meanwhile, annular space 403 can be used as the buffer area of working gas, make working gas even
Flow through heat exchange fin 100, enhanced heat exchange in ground.
As shown in fig. 6, in this preferred embodiment, the fin height h=4mm for the inner fin 120 that exchanges heat, thickness δ=1mm, slit
Width α=1 °, two heat exchange fin interval β=2 °, the value by adjusting α and β can be accurately controlled the gap of heat exchange fin 100
Rate.The fin design parameter of the outer fin 110 of heat exchange is identical as heat exchange inner fin 120.
Visible in summary: the utility model effectively reduces contact heat by using the structure of built-in water-cooling heat exchanger
Resistance reduces heat transfer temperature difference, improves the machine thermal efficiency；Compared to traditional air cooling fin formula heat exchanger, water cooling heat exchange has higher
Heat transfer coefficient；Without adding fin or water jacket on the outside of refrigeration machine, keep complete machine structure more compact.
It is last it is necessarily pointed out that: the foregoing is merely the preferable specific embodiments of the utility model, but this
The protection scope of utility model is not limited thereto, and anyone skilled in the art discloses in the utility model
In technical scope, any changes or substitutions that can be easily thought of, should be covered within the scope of the utility model.
Claims (7)
1. a kind of built-in water-cooling heat exchanger for sound energy free-piston type machine, it is characterised in that: the built-in water-cooling heat exchange
Device is circle, including fin, water jacket outer housing, water jacket inner housing and heat exchange inner fin outside sequentially connected heat exchange, water jacket shell
It is equipped with water side stream passages between body, water jacket inner housing, is equipped with and supplies at the combination of water jacket outer housing and water jacket inner housing upper and lower ends
The inner wall of liquid collector and time liquid collector, the outer wall for the outer fin that exchanges heat and the inner fin that exchanges heat is respectively equipped with radiating fin group.
2. the built-in water-cooling heat exchanger according to claim 1 for sound energy free-piston type machine, it is characterised in that: institute
The water side stream passages stated include that water jacket outer housing is provided with multiple cricoid, sections on the surface that the two is connect with water jacket inner housing and is
Groove on the groove of rectangle, water jacket outer housing and water jacket inner housing collectively constitutes water effluent circulation passage.
3. the built-in water-cooling heat exchanger according to claim 1 for sound energy free-piston type machine, it is characterised in that: institute
The upper groove of the water jacket outer housing, water jacket inner housing stated is to mutually stagger to be arranged.
4. the built-in water-cooling heat exchanger according to claim 1 for sound energy free-piston type machine, it is characterised in that: institute
The water jacket outer housing and water jacket inner housing upper and lower ends stated have semi arch boss, and extend to inside and form conical socket, group
It closes the feed flow collector for constituting water side and returns liquid collector.
5. exchanging heat described in any claim for the built-in water-cooling of sound energy free-piston type machine according to claim 1~4
Device, it is characterised in that: be respectively equipped with inlet tube and liquid back pipe, the water jacket on the feed flow collector and time liquid collection interface tube
Outer housing, water jacket inner housing lower end be equipped with connection boss.
6. the built-in water-cooling heat exchanger according to claim 2 for sound energy free-piston type machine, it is characterised in that: institute
The cricoid recess width stated is 0.5mm~2mm, is highly 0.3mm~1mm, and each groove spacing is 0.5mm~2mm.
7. the built-in water-cooling heat exchanger according to claim 5 for sound energy free-piston type machine, it is characterised in that: institute
Using welded connecting between the outer fin of the heat exchange stated and water jacket outer housing, water jacket inner housing and heat exchange inner fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721828803.1U CN208579662U (en) | 2017-12-25 | 2017-12-25 | A kind of built-in water-cooling heat exchanger for sound energy free-piston type machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721828803.1U CN208579662U (en) | 2017-12-25 | 2017-12-25 | A kind of built-in water-cooling heat exchanger for sound energy free-piston type machine |
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| Publication Number | Publication Date |
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| CN208579662U true CN208579662U (en) | 2019-03-05 |
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| CN201721828803.1U Active CN208579662U (en) | 2017-12-25 | 2017-12-25 | A kind of built-in water-cooling heat exchanger for sound energy free-piston type machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966062A (en) * | 2017-12-25 | 2018-04-27 | 陕西仙童科技有限公司 | A kind of built-in water-cooling heat exchanger for acoustic energy free-piston type machine |
-
2017
- 2017-12-25 CN CN201721828803.1U patent/CN208579662U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966062A (en) * | 2017-12-25 | 2018-04-27 | 陕西仙童科技有限公司 | A kind of built-in water-cooling heat exchanger for acoustic energy free-piston type machine |
| CN107966062B (en) * | 2017-12-25 | 2024-02-23 | 陕西仙童科技有限公司 | Built-in water-cooling heat exchanger for acoustic energy free piston type machine |
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