CN104197760A - Pipeline type pulse heat pipe heat exchanger - Google Patents
Pipeline type pulse heat pipe heat exchanger Download PDFInfo
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- CN104197760A CN104197760A CN201410403626.7A CN201410403626A CN104197760A CN 104197760 A CN104197760 A CN 104197760A CN 201410403626 A CN201410403626 A CN 201410403626A CN 104197760 A CN104197760 A CN 104197760A
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- heat pipe
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- pipeline
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- heating agent
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Abstract
The invention provides a pipeline type pulse heat pipe heat exchanger which is characterized in that a heating medium flowing pipeline is included, the front side and the back side of the heating medium flowing pipeline are respectively provided with a pulse heat pipe, each pulse heat pipe comprises an evaporating section, a condensation section and a heat insulation section between the evaporation section and the condensation section, the heating medium flowing pipeline comprises an inlet pipeline, an outlet pipeline and a middle pipeline placed between the inlet pipeline and the outlet pipeline, wherein the evaporating sections of the pulse heat pipes are arranged on the side face of the inlet pipeline of the heating medium flowing pipeline, and the condensation sections of the pulse heat pipes are arranged on the side face of the outlet pipeline of the heating medium flowing pipeline. The pulse heat pipes can carry out efficient heat transmission, and under the outer condition without power, heat is transmitted by self vibration flowing of gas phase and liquid phase media. During a whole process, external mechanical work and electrical work do not need to be consumed, self vibration is achieved under heat driving, and the pipeline type pulse heat pipe heat exchanger has the advantages of being easy to manufacture and low in cost.
Description
Technical field
What the present invention relates to is a kind of a kind of device that utilizes pulsating heat pipe to strengthen the pipeline heat exchanger of heat exchange.Utilize pulsating heat pipe phase-change heat transfer and pulsation effect, effectively improve the heat exchange efficiency of heat exchanger, form efficient pulsating heat pipe heat exchanger.Be mainly used in the occasions such as boats and ships, automobile, space flight, electronics, waste heat recovery and solar energy and geothermal utilization.There is heat exchange efficiency high, the feature such as the pressure loss is few, less scaling.
Background technology
In communications and transportation, Aero-Space and industrial processes, need between the different piece between device systems and surrounding environment or at same system, control or strengthen the transmission of heat.Heat exchanger is not only and is guaranteed simultaneously also in energy-saving and emission-reduction, among the secondary utilization of the energy, to have played irreplaceable effect by one of requisite key equipment of normal productive life.The kind of heat exchanger is a lot of at present, and technology is relatively ripe, but how efficient, energy-conservation raising heat exchange efficiency is still the difficult problem that heat exchanger is faced.
Pulsating heat pipe is a kind of new and effective heat-transfer equipment, mainly relies on the self-Oscillation Flows of vapour, liquid two-phase medium to carry out transferring heat during operation.Its operation principle is: by filling a certain amount of working media after being evacuated in pipe, because caliber is enough little, in pipe, will form bubble column and liquid column interval and arrange and be the state of random distribution.At evaporation ends, working medium heat absorption produces bubble, expands rapidly and boosts, and promotes working medium and flows to cryogenic condensation end, and there, the cooling contraction of bubble is also broken, pressure drop.Like this, owing to there is the pressure imbalance existing between pressure reduction and adjacent pipe between two ends, make working medium Oscillation Flows between evaporator section and condensation segment, thereby realize the transmission of heat.In whole process, without consuming exterior mechanical merit and electric work, be the oneself's concussion under heat drives completely.Pulsating heat pipe has simple in structure, easy to manufacture, advantage with low cost, now successful Application in power equipment and microelectronic heat treatment.Pulsating heat pipe heat transfer coefficient rational in infrastructure is very large, and the thermal conductivity factor of the plate type pulsating heat pipe of being made by corrosion resistant plate is about 2000W/mK, than former stainless thermal conductivity factor, exceeds 120 times, has kept the original advantage of stainless steel simultaneously.
Summary of the invention
Problem to be solved by this invention is to provide a kind of pipeline pulsating heat pipe heat exchanger with efficient heat transfer performance.
In order to solve the problems of the technologies described above, the invention provides a kind of pipeline pulsating heat pipe heat exchanger, it is characterized in that, comprise heating agent flow duct, the both sides, front and back of heating agent flow duct are respectively provided with a pulsating heat pipe, described pulsating heat pipe comprises evaporator section, condensation segment and the adiabatic section between evaporator section and condensation segment, described heating agent flow duct comprises entrance pipe, export pipeline and the intermediate duct between entrance pipe and export pipeline, wherein, the evaporator section of described pulsating heat pipe is located at the side of the entrance pipe of heating agent flow duct, the condensation segment of described pulsating heat pipe is located at the side of the export pipeline of heating agent flow duct.
Preferably, between the evaporator section of described pulsating heat pipe and the entrance pipe of heating agent flow duct and between the described condensation segment of pulsating heat pipe and the export pipeline of heating agent flow duct, be provided with and strengthen heat exchange pipe network.
More preferably, described enhancing heat exchange pipe network and pulsating heat pipe are located at respectively the both sides of heating agent flow duct symmetrically.
Preferably, described pulsating heat pipe is coiled pipe, and joining end to end of described coiled pipe forms closed circuit pulsating heat pipe, and its section configuration is circular, in described coiled pipe, is provided with cold-producing medium.
Preferably, described pulsating heat pipe is coiled pipe, and the head and the tail of described coiled pipe are not connected to form open circuit pulsating heat pipe, and its section configuration is circular, in described coiled pipe, is provided with cold-producing medium.
More preferably, the liquid filled ratio of described coiled pipe is 55%, and described cold-producing medium is R134a, acetone, alcohol, water or ammoniacal liquor.(working medium can consider and determine according to actual heat exchange amount and cost etc.).
Preferably, described heating agent flow duct is coiled pipe.
More preferably, the elbow part of described coiled pipe is located in body of thermal insulating box.
Preferably, in described heating agent flow duct, be provided with heating agent, heating agent flow velocity is 0.02kg/s-1.5kg/s.
Preferably, described pulsating heat pipe is vertically installed, and its evaporator section is positioned at upside, and condensation segment is positioned at downside, and the heating agent in heating agent flow duct is by the high-end low side that flows to.
Preferably, described pulsating heat pipe level is installed, and its evaporator section is positioned at left side or the right side of adiabatic section, and condensation segment is positioned at right side or the left side of adiabatic section, and the elbow number of pulsating heat pipe is more than 40.
Compared with prior art, the invention has the beneficial effects as follows:
1, the present invention is by utilizing the phase-state change of hydraulic fluid in pulsating heat pipe to strengthen the device of heat exchange.Pulsating heat pipe can efficient heat transfer, under motorless external condition, relies on the self-Oscillation Flows of vapour, liquid two-phase medium to carry out transferring heat.In whole process, without consuming exterior mechanical merit and electric work, under driving, heat realizes oneself's vibration, there is feature easy to manufacture, with low cost.
2, enhancing heat exchange pipe network of the present invention is installed between heating agent flow duct and pulsating heat pipe, be conducive to like this exchange of heat between heating agent fluid line and pulsating heat pipe, can make pulsating heat pipe be heated evenly, better improve the heat exchange efficiency of pulsating heat pipe heat exchanger simultaneously.
Accompanying drawing explanation
Fig. 1 a is open type pulsating heat pipe structural representation;
Fig. 1 b is enclosed fluctuation heat pipe structure schematic diagram;
Fig. 2 is heating agent flow duct structural representation;
Fig. 3 is for strengthening heat exchanger tube web frame schematic diagram;
Fig. 4 a is for being used the pipeline pulsating heat pipe heat exchanger structural representation of open type pulsating heat pipe;
Fig. 4 b is for being used the pipeline pulsating heat pipe heat exchanger structural representation of enclosed fluctuation heat pipe;
Fig. 5 is pipeline pulsating heat pipe heat exchanger top view.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1
Use a pipeline pulsating heat pipe heat exchanger for open type pulsating heat pipe, comprise pulsating heat pipe 1, heating agent flow duct 2, strengthen heat exchange pipe network 3 and body of thermal insulating box 4.
As shown in Figure 1a, described pulsating heat pipe 1 is by external diameter 4mm, the copper tube of internal diameter 2.7mm bends the coiled pipe forming, bending radius is 8mm, the head and the tail of described coiled pipe are not connected to form open circuit pulsating heat pipe, and its section configuration is circular, is provided with R134a cold-producing medium in described coiled pipe, liquid filled ratio is 55%, and vacuum reaches 10
-3pa.Working medium can consider and determine according to actual heat exchange amount and cost etc.Described pulsating heat pipe 1 comprises evaporator section 11, condensation segment 13 and the adiabatic section 12 between evaporator section 11 and condensation segment 13.The length of evaporator section 11 and condensation segment 13, elbow number can be determined according to the actual requirements.
As shown in Figure 2, by the material copper tube with efficient heat transfer performance, (red copper is a kind of good Heat Conduction Material to described heating agent flow duct 2, considering on the basis of cost of manufacture and heat transfer property, suggestion is selected copper tube as heating agent flow duct) bend and form, it is snakelike that pipeline is, increased the area of dissipation of heating agent, be convenient to exchange heat, it comprises entrance pipe 21, export pipeline 22 and the intermediate duct 23 between entrance pipe 21 and export pipeline 22.The elbow part of described coiled pipe is located in body of thermal insulating box 4, and body of thermal insulating box 4 covers the elbow part of heating agent flow duct 2, to reach the object that reduces thermal loss.In described heating agent flow duct, be provided with heating agent, heating agent flow velocity is 0.02kg/s-1.5kg/s.Caliber is not had to specific (special) requirements, can determine according to heating agent flow velocity.
As shown in Figure 3, described enhancing heat exchange pipe network is that the copper wire braiding by diameter 1mm forms, and copper wire interweaves anyhow, forms network structure, and object is for enlarge active surface, adopts the high material of thermal conductivity factor, can strengthen heat exchange.Strengthen the shape of heat exchange pipe network, size is determined according to the length of cold and hot section of pulsating heat pipe, and material can be determined according to actual demand.Its size just in time covers condensation segment or the evaporator section of pulsating heat pipe, between heating agent flow duct and pulsating heat pipe, install, be conducive to like this exchange of heat between heating agent fluid line and pulsating heat pipe, can make pulsating heat pipe be heated evenly, better improve the heat exchange efficiency of pulsating heat pipe heat exchanger simultaneously.
As shown in Fig. 4 a, the both sides, front and back of heating agent flow duct 2 are respectively provided with a pulsating heat pipe 1, and heating agent flow duct 2 is and is arranged vertically with pulsating heat pipe 1.Wherein, the evaporator section 11 of described pulsating heat pipe 1 is located at the side of the entrance pipe 21 of heating agent flow duct 2, and the condensation segment 13 of described pulsating heat pipe 1 is located at the side of the export pipeline 22 of heating agent flow duct 2.Between the evaporator section 11 of described pulsating heat pipe 1 and the entrance pipe 21 of heating agent flow duct 2 and between the described condensation segment 13 of pulsating heat pipe 1 and the export pipeline 22 of heating agent flow duct 2, be provided with and strengthen heat exchange pipe network 3.As shown in Figure 5, described enhancing heat exchange pipe network 3 and pulsating heat pipe 1 are located at respectively the both sides of heating agent flow duct 2 symmetrically.Heating agent enters pipeline through porch, and in pipeline, S-shaped flowing, has strengthened the heat exchange area of heating agent.Heating agent flow duct can specifically be arranged according to actual demand.During installation, first fix heating agent flow duct 2, at the two ends of heating agent flow duct 2, arrange and strengthen heat exchange pipe network 3, reduce the gap strengthening between heat exchange pipe network 3 and heating agent flow duct 2 as far as possible, make being arranged between pulsating heat pipe 1 and heating agent flow duct 2 of its compactness; Body of thermal insulating box 4 is arranged on the elbow of heating agent flow duct 2, makes it reduce heating agent at the thermal loss of elbow, improves the heat exchange efficiency of pipeline pulsating heat pipe heat exchanger.
Length and the version of the parts of the pipeline pulsating heat pipe heat exchanger the present invention relates to can be determined according to actual conditions.Pipeline pulsating heat pipe heat exchanger can also can level be installed by right angle setting.As shown in Fig. 4 a, when pulsating heat pipe 1 is vertically installed, its evaporator section is positioned at upside, and condensation segment is positioned at downside, and heating agent entrance is arranged on eminence, and the heating agent in heating agent flow duct 2 is by the high-end low side that flows to.The several numbers of elbow of pulsating heat pipe do not explicitly call for.When pulsating heat pipe 1 level is installed, its evaporator section is positioned at left side or the right side of adiabatic section, condensation segment is positioned at right side or the left side of adiabatic section, the mobile entrance of heating agent can be arranged on arbitrary end, through experimental results demonstrate, take 100 ℃ of water, it is heating agent, when R134a is the cold-producing medium of pulsating heat pipe, increase along with pulsating heat pipe elbow number, heat exchange efficiency rises to 90% by 75%, generally elbow number meets more than 40, and the heat exchange efficiency of heat exchanger has the restriction that obvious facilitation can be broken away from pulsating heat pipe at right angle setting and level installation simultaneously.
During use, the heating agent of high temperature is through strengthening heat exchange pipe network, give the evaporator section energy supply of pulsating heat pipe, pulsating heat pipe starts, and through phase-change heat transfer and the pulsation effect of pulsating heat pipe, heat passes to condensation segment, the water at low temperature of now process heat exchange is through condensation segment, strengthen the heat exchange of condensation segment, heat is distributed fast, reached the object of enhanced heat exchange.
Embodiment 2
As shown in Figure 4 b, for using the pipeline pulsating heat pipe heat exchanger structural representation of enclosed fluctuation heat pipe, the pipeline pulsating heat pipe heat exchanger of described use enclosed fluctuation heat pipe, its structure is similar to embodiment 1, and difference is, the structure difference of described pulsating heat pipe 1, described pulsating heat pipe 1 is coiled pipe, joining end to end of described coiled pipe forms closed circuit pulsating heat pipe, and its section configuration is circular, in described coiled pipe, is provided with cold-producing medium.
Claims (10)
1. a pipeline pulsating heat pipe heat exchanger, it is characterized in that, comprise heating agent flow duct (2), the both sides, front and back of heating agent flow duct (2) are respectively provided with a pulsating heat pipe (1), described pulsating heat pipe (1) comprises evaporator section (11), condensation segment (13) and be positioned at evaporator section (11) and condensation segment (13) between adiabatic section (12), described heating agent flow duct (2) comprises entrance pipe (21), export pipeline (22) and be positioned at entrance pipe (21) and export pipeline (22) between intermediate duct (23), wherein, the evaporator section (11) of described pulsating heat pipe (1) is located at the side of the entrance pipe (21) of heating agent flow duct (2), the condensation segment (13) of described pulsating heat pipe (1) is located at the side of the export pipeline (22) of heating agent flow duct (2).
2. pipeline pulsating heat pipe heat exchanger as claimed in claim 1, it is characterized in that, between the evaporator section (11) of described pulsating heat pipe (1) and the entrance pipe (21) of heating agent flow duct (2) and between the described condensation segment (13) of pulsating heat pipe (1) and the export pipeline (22) of heating agent flow duct (2), be provided with and strengthen heat exchange pipe network (3).
3. pipeline pulsating heat pipe heat exchanger as claimed in claim 2, is characterized in that, described enhancing heat exchange pipe network (3) and pulsating heat pipe (1) are located at respectively the both sides of heating agent flow duct (2) symmetrically.
4. pipeline pulsating heat pipe heat exchanger as claimed in claim 1, it is characterized in that, described pulsating heat pipe (1) is coiled pipe, and joining end to end of described coiled pipe forms closed circuit pulsating heat pipe, its section configuration is circular, in described coiled pipe, is provided with cold-producing medium.
5. pipeline pulsating heat pipe heat exchanger as claimed in claim 1, it is characterized in that, described pulsating heat pipe (1) is coiled pipe, and the head and the tail of described coiled pipe are not connected to form open circuit pulsating heat pipe, its section configuration is circular, in described coiled pipe, is provided with cold-producing medium.
6. pipeline pulsating heat pipe heat exchanger as claimed in claim 1, is characterized in that, described heating agent flow duct is coiled pipe.
7. pipeline pulsating heat pipe heat exchanger as claimed in claim 6, is characterized in that, the elbow part of described coiled pipe is located in body of thermal insulating box (4).
8. pipeline pulsating heat pipe heat exchanger as claimed in claim 1, is characterized in that, in described heating agent flow duct, is provided with heating agent, and heating agent flow velocity is 0.02kg/s-1.5kg/s.
9. pipeline pulsating heat pipe heat exchanger as claimed in claim 1, is characterized in that, described pulsating heat pipe (1) is vertically installed, and its evaporator section is positioned at upside, and condensation segment is positioned at downside, and the heating agent in heating agent flow duct (2) is by the high-end low side that flows to.
10. pipeline pulsating heat pipe heat exchanger as claimed in claim 1, it is characterized in that, described pulsating heat pipe (1) level is installed, and its evaporator section is positioned at left side or the right side of adiabatic section, condensation segment is positioned at right side or the left side of adiabatic section, and the elbow number of pulsating heat pipe (1) is more than 40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403626.7A CN104197760A (en) | 2014-08-15 | 2014-08-15 | Pipeline type pulse heat pipe heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403626.7A CN104197760A (en) | 2014-08-15 | 2014-08-15 | Pipeline type pulse heat pipe heat exchanger |
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| CN104197760A true CN104197760A (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410403626.7A Pending CN104197760A (en) | 2014-08-15 | 2014-08-15 | Pipeline type pulse heat pipe heat exchanger |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567499A (en) * | 2015-01-20 | 2015-04-29 | 北京建筑大学 | Pulse heat pipe heat radiation device used for electronic device and heat radiation device thereof |
| CN105157460A (en) * | 2015-08-24 | 2015-12-16 | 东华大学 | Pulsating heat pipe heat exchanger with ammonia water as media and stainless steel as materials |
| CN105299540A (en) * | 2015-11-05 | 2016-02-03 | 广州百年光电技术开发有限公司 | Self-exciting type loop heat pipe sunflower heat dissipation module and large-power LED tube light |
| CN105571366A (en) * | 2015-12-25 | 2016-05-11 | 南昌大学 | Pulsating heat pipe with tilt-angle communicating pipe structure |
| CN107036333A (en) * | 2017-04-28 | 2017-08-11 | 东南大学 | Lithium bromide refrigerator generator |
| CN107310348A (en) * | 2017-06-07 | 2017-11-03 | 东南大学 | A kind of built-in heat pipe passive cooling system of bottom of car |
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Patent Citations (5)
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| JP2002206881A (en) * | 2001-01-12 | 2002-07-26 | Ts Heatronics Co Ltd | Radiator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567499A (en) * | 2015-01-20 | 2015-04-29 | 北京建筑大学 | Pulse heat pipe heat radiation device used for electronic device and heat radiation device thereof |
| CN105157460A (en) * | 2015-08-24 | 2015-12-16 | 东华大学 | Pulsating heat pipe heat exchanger with ammonia water as media and stainless steel as materials |
| CN105299540A (en) * | 2015-11-05 | 2016-02-03 | 广州百年光电技术开发有限公司 | Self-exciting type loop heat pipe sunflower heat dissipation module and large-power LED tube light |
| CN105571366A (en) * | 2015-12-25 | 2016-05-11 | 南昌大学 | Pulsating heat pipe with tilt-angle communicating pipe structure |
| CN107036333A (en) * | 2017-04-28 | 2017-08-11 | 东南大学 | Lithium bromide refrigerator generator |
| CN107310348A (en) * | 2017-06-07 | 2017-11-03 | 东南大学 | A kind of built-in heat pipe passive cooling system of bottom of car |
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Application publication date: 20141210 |
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