CN216115557U

CN216115557U - Closed-loop pulsating heat transfer pipe and heat dissipation heat exchanger

Info

Publication number: CN216115557U
Application number: CN202023233081.XU
Authority: CN
Inventors: 吴德坚
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-03-22
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a closed-loop pulsating heat transfer pipe and a heat dissipation heat exchanger, which comprise a continuously bent pipe body, wherein two ends of the pipe body are connected through a liquid filling pipe to form a closed-loop structure, pipe holes are formed in the pipe body in an array mode, the pipe holes are vacuumized and filled with heat conducting working media, and the heat conducting working media continuously reciprocate in a closed-loop pipeline formed by the pipe body. The utility model has the advantages of simple process flow, low process requirement, low investment, convenient processing, low cost of equipment, process, materials and the like, can realize the function of super-efficient heat transfer and dissipation, solves the heat control management of various high heat flow densities at low cost, has wide application range and solves the heat control application of some special environment equipment.

Description

Closed-loop pulsating heat transfer pipe and heat dissipation heat exchanger

Technical Field

The utility model relates to the field of heat control, heat dissipation and heat exchange technologies and devices, in particular to a closed-loop pulsating heat transfer pipe, a radiator, a heat exchanger and a heat control system.

Background

At present, electronic, electric appliances, communication, computer products, automobiles, new energy sources and various devices with high heat flow density need thermal control management, the original radiators are made of more materials and shapes, most of the radiators are made of copper materials and aluminum materials, the radiators are complex in structure, large in size, heavy in weight, relatively slow in heat conduction speed, inconsistent in overall temperature, large in temperature difference of all parts of the radiators, ultra-high in heat sink of a heat source chip and the like; on the other hand, with the continuous development trend of various electronic chips, circuits, new materials and new energy battery products, the heat conduction and dissipation scheme of the original heat conduction and dissipation material is difficult to meet the heat control management requirements of the electronic chips, highly integrated circuits, new materials, new energy products and the like with high heat flux density, and heat generated by a heat source body can not be rapidly transferred and dissipated, so that the heat sink temperature of the heat source chip, the electronic circuits, the new energy products and the like is ultrahigh, the heat source chip continuously works, the temperature rises along with the continuous work of the heat source chip, and the use effect and the service life of the product are seriously influenced and damaged. In order to solve the ever-increasing thermal control management of these integrated chips and power modules with high heat flux density, people are constantly using various heat pipe phase change principles of thermal control heat dissipation schemes, the heat pipe phase change principle is widely applied to heat dissipation heat control with ultra-high thermal conductivity (6000-plus-3000 w/km), but such as the conventional copper sintering heat pipe has complex processing process, high precision requirement, many application equipment, large investment to form capacity, high equipment, material and process costs, and the commonly used copper sintering core heat pipe, gravity groove heat pipe and the like have complex structure when combined with a radiator, and these various reasons cause the overall cost of these heat pipe heat dissipation schemes to be very high, and moreover, in some application environments, such as aviation, aerospace, satellite and other deep space vacuum environments, not suitable for application.

Under the environment, it is very important to develop a novel heat pipe with simple structure, simple production, complete functions, superconductive heat transfer, super-efficient heat dissipation and heat exchange, and a heat dissipation, heat exchanger part, application system scheme and the like formed by the novel heat pipe, so as to solve the heat management application of various electronic products, new energy products, various electric and telecommunication equipment, deep space equipment and the like which are continuously advanced at present and in the future.

SUMMERY OF THE UTILITY MODEL

The utility model provides a closed-loop pulsating heat transfer pipe, a heat dissipation heat exchanger, a heat exchanger and a heat control system; the process flow is simple, the process requirement is not high, the investment is low, the processing is convenient, the cost of equipment, process, materials and the like is low, the functions of super-efficient heat conduction, heat dissipation and heat exchange can be realized, the heat control management of various high heat flow densities is solved at low cost, the application range is wide, and the heat control application of some special environment equipment is solved.

In order to achieve the purpose, the utility model provides the following technical scheme: a closed-loop pulsating heat transfer pipe comprises a continuously bent pipe body, wherein two ends of the pipe body are connected through a liquid filling pipe to form a closed-loop structure, pipe holes are formed in the pipe body in an array mode, a heat conducting working medium is pumped in the pipe in a vacuum mode and filled in the pipe, and the heat conducting working medium continuously reciprocates in the closed-loop pipe formed by the pipe body.

Preferably, the cross section of the pipe body is flat, round or rectangular.

Preferably, the pipe hole is round, square or rectangular.

The heat exchanger also comprises a closed-loop pulsating heat transfer pipe heat dissipation heat exchanger, wherein heat dissipation fins are arranged between pipe bodies of the closed-loop pulsating heat transfer pipe.

On the basis of the above-mentioned closed-loop pulsating heat transfer pipe, it can form correspondent radiator and heat exchanger, also can set radiating fin outside the pipe body to raise radiating heat-exchanging efficiency, and form the super-effective radiating heat-exchanging pulsating heat pipe radiator without power consumption.

The pulsating heat transfer pipe is simple in production preparation and process flow, a set of loop pipe fittings which are continuously bent for many times are manufactured by the heat pipe process only through one liquid filling pipe and one-time vacuum liquid filling and sealing, compared with other processes, the heat pipe is very simple in preparation, the required production equipment investment is low, the process flow is simple, the production efficiency and the productivity are very high, and the method is the optimized heat pipe manufacturing process at present. (compared with the complicated process flow of the sintering core heat pipe- -the added process of copper powder filling, sintering, reduction, precise liquid filling, welding sealing, secondary removal, surface oxidation resistance and the like, the other conventional groove gravity heat pipe process flow has less sintering process compared with the sintering core heat pipe, other process flows are basically the same, each heat pipe is independent of the processes, the equipment precision is high, the investment is large, the process and the flow are complicated, and the cost is very high).

On the other hand, the pulsating heat transfer pipe structure of the utility model has great difference and advantages compared with the existing pulsating heat pipe structure, the pulsating heat transfer pipe of the utility model adopts a porous display structure, one pipe fitting has a plurality of small pipelines (the original pulsating heat pipe generally has a round pipe with only one hole), the structure of the porous pipeline pipe fitting can be extended more, the surface area can be very large, if a rectangular flat structure is adopted, the subsequent flattening process is not needed, the pipe fitting can have a very large contact area with a heat source, the pipe fitting processing process is fine, the planeness can reach 0.1-0.3, the contact surface can not be processed, the subsequent processing process is saved, the pipe fitting material has wide application, the metal such as aluminum, copper, stainless steel, titanium, etc., plastic, glass, ceramic, composite organic material, etc. can be adopted, the material is very wide, the application range of the material is wide, and the corresponding heat conduction compatibility option is very wide, the product has a very wide application range, can be widely applied to various electronic products, semiconductor chips, integrated circuits, power locomotives, telecommunication equipment, signal base stations, electric power equipment, mining equipment, explosion-proof equipment, large and small servers, IGBTs, frequency converters, servers, new energy batteries, charging piles, LEDs, lighting lamps, driving power supplies, inverters, vending equipment, electric products, electromechanical equipment, electrical equipment, refrigeration and heating ventilation fresh air heat exchange equipment, seawater desalination, heat supply and heating, waste heat recovery, geothermal collection and the like, due to wide material and working medium options, if novel pulsating heat pipes, pulsating heat pipe radiators and pulsating heat pipe heat exchanger products prepared from aluminum materials, acetone, ammonia and various low-temperature refrigerant working media are adopted, the heat pipe heat exchanger has light weight, can work in an ultralow-temperature environment, and is particularly suitable for the heat management application of deep space equipment such as aviation, aerospace, satellites and the like.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a cross-sectional view of the tube of the present invention;

fig. 4 is a structural diagram of a heat sink composed of a pulsating heat pipe array according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-3, the present invention provides a closed-loop pulsating heat transfer pipe and heat exchanger, including a continuously bent pipe body 1, wherein two ends of the pipe body 1 are connected by a liquid filling pipe 2 to form a closed-loop structure, pipe holes 4 are arranged in the pipe body 1 in an array, the pipe holes 4 are evacuated and filled with a heat conducting working medium, and the heat conducting working medium continuously reciprocates in a closed-loop pipeline formed by the pipe body 1.

The shape of the pipe body 1 is flat, rectangular, circular, square or other polygonal shapes, the shape of the pipe holes 4 in the pipe body 1 is circular, rectangular, square, triangular or other polygonal shapes, the arrangement of the pipe holes 4 is regular and irregular array arrangement along the outline shape of the pipe fitting, and the pipe holes can be arranged in a single-row or multi-row array.

The pipe body 1 is made of metal such as aluminum, copper, stainless steel, titanium, etc., plastic, modified graphite material, glass, ceramic, or organic composite material.

The heat-conducting working media filled in the tube body 1 in vacuum are various high-low temperature heat-conducting working media such as water, acetone, ammonia, methanol, ethanol, heat conductor and the like, various refrigerants, various mixed working media and the like.

The heat of the power heat source is conducted to the condensation section and the whole pulsating heat pipe radiator structure rapidly by the heat conducting working medium in the evaporation section pipe fitting, so that the whole radiator is basically in a state close to uniform temperature, the pipe wall of the condensation section and the radiating fins have larger radiating area, and the heat is rapidly radiated by natural air convection or forced convection, thereby solving the problem that the power heat source generates overhigh heat sink and effectively protecting the power module product.

On the basis of the above-mentioned closed-loop pulsating heat transfer pipe, a corresponding radiator can be formed, and on the pipe body 1 also the radiating fins 3 can be set, so that the radiating and heat-exchanging efficiency can be raised, and the above-mentioned heat pipe radiator with no power consumption can be formed.

The first embodiment is as follows:

novel pulsating heat pipe

The pipe body 1 is a flat porous pipe fitting made of aluminum, the aluminum pipe is continuously and regularly bent and then welded and additionally provided with a liquid filling pipe fitting to form a closed loop type loop structure, the pipe fitting is sealed after heat conducting working media are filled in vacuum, when a heat source is started, heat energy is generated and transmitted to the pipe fitting, the heat conducting working media in the heat pipe are boiled at low temperature to form a large amount of bubbles and liquid plugs, the liquid plugs are separated by the bubbles in a fine pipe, the heat energy is continuously increased along with the continuous increase of the temperature of the heat source, the generation of the large amount of bubbles and liquid plugs is formed, the liquid plugs in the pipe are pushed to a condensation section and continuously circulate in the loop pipe, the working media are continuously gasified, latent heat is dissipated, cooled and flows back to an evaporation section of the heat source in the circulating process, and then continuous circulation is realized, the functions of quick heat dissipation and heat exchange are achieved, and the novel pulse heat transfer pipe of the closed loop type loop is formed.

Example two:

novel pulsating heat pipe heat dissipation device

The tube body 1 is fixed (welded or solidified and bonded) on a heat source substrate to form a novel pulsating heat pipe radiator, and in order to improve the heat dissipation and heat exchange efficiency, a heat dissipation fin can be additionally arranged on the tube body, so that the heat exchange area is increased, the efficiency is improved, and the super-efficient heat conduction and heat exchange radiator is formed.

As shown in fig. 4, a heat source power device (chip) is connected to one side of the heat radiator bottom plate 5, the other side of the heat radiator bottom plate 5 is connected with a continuous-bending closed-loop porous pulsating heat pipe, the two form a novel heat radiator structure, as shown in fig. 4, the surface area of the heat pipe is increased by the display heat pipe, a larger novel pulsating heat pipe radiator is formed, aluminum foil fins are displayed and welded on another pipe fitting, the heat exchange area of the novel pulsating heat pipe radiator is increased to the maximum extent, various high-temperature, medium-temperature, normal-temperature and low-temperature heat-conducting working media and refrigerants which are fused with the material of the shell can be adopted as the heat-conducting working medium of the heat pipe, and the corresponding product shell and the heat-conducting working medium are configured according to the working condition requirement to adapt to the working condition environment, the heat radiator has ultra-light weight, high heat transfer speed and extremely large heat dissipation surface area, and can adapt to various heat control management applications

Example three:

a fresh air heat exchange device of a pulsating heat pipe is a heat exchanger which is formed by welding a plurality of flat porous pulsating heat pipes made of aluminum materials with aluminum foil fins, the middle sections of the parallel heat exchangers are separated by rubber, the heat exchange device is arranged in a heat exchange structure pipeline with a middle interlayer, the air fluid of the upper section and the lower section of the heat pipe is not circulated, when the heat exchange work is started and the high-temperature (low-temperature) waste gas circulates at the lower layer of the heat exchange structure pipeline, the working medium in the pipe body 1 quickly absorbs the heat of the waste gas and boils at low temperature, through the principle of pulsating shock working medium bubbles and liquid bolts, the liquid bolts are pushed to the upper section of the heat pipe, so that the temperature of the upper section of the heat pipe and the temperature of the lower end heat pipe are close to the uniform temperature, fresh air on the upper layer of the heat exchange structure pipeline circulates and the temperature of the upper section of the heat pipe is absorbed, the temperature of the fresh air is increased (reduced), the efficient waste heat recovery effect is achieved, and the energy-saving, environment-friendly and low-carbon operation is achieved.

Example four:

the utility model provides a pulsation heat pipe waste water, waste gas waste heat exchange device, body 1 material is the porous display tube of stainless steel flat (circle), install pulsation heat transfer pipe in the pipeline that has upper and lower two-layer waste heat recovery, the interlayer is done with rubber (or welded corrosion resistant plate) to the heat pipe interlude, upper and lower two-layer not circulate, when waste heat waste water circulates in lower pipeline, the pulsation heat pipe works rapidly, the temperature of heat pipe upper segment and lower extreme heat pipe temperature are close the samming, fluid on lower laminar flow heat transfer to the upper strata rapidly, promote the temperature of upper strata fluid, reach efficient waste heat recovery effect, reach energy-conservation, environmental protection, the operation of low carbon.

Example five:

a novel pulsating heat pipe seawater desalination device is made of 2205 stainless steel materials or flat (round) porous display pipe bodies made of aluminum brass, wherein an interlayer material is arranged in the middle of a pulsating heat transfer pipe to divide the heat pipe into an upper layer and a lower layer, the pulsating heat transfer pipe is arranged in the seawater desalination device, the device is a two-layer sealed space, the lower layer of the device is provided with a high-temperature waste gas (high-temperature hot water) inlet of a boiler, and the upper end of the upper layer of the device is provided with a seawater spraying device, a steam collecting outlet and a steam collecting device; when high-temperature boiler waste gas (high-temperature hot water) flows at the lower layer of the device, the pulsating heat transfer pipe works rapidly, the working medium rapidly transfers high temperature to the upper section of the pulsating heat transfer pipe, so that the temperature of the upper section of the pulsating heat transfer pipe is close to that of the lower layer, when the temperature reaches the design set temperature, the seawater spraying device at the upper layer of the device sprays seawater onto the high-temperature pulsating heat transfer pipe to generate high-temperature steam, the steam collecting device collects the steam, the collected steam is desalted, and the set seawater desalting effect can be achieved after multiple-cycle evaporation. In the specific operation, high-temperature waste gas is used as a heat source, stainless steel fins are welded at the lower end of the heat pipe to increase the contact area between the heat pipe and high-temperature air, the heat transfer and exchange effect is improved, the seawater desalination efficiency and the yield of the device are improved, and the fins can not be welded at the lower section of the pulsating heat pipe which adopts hot water as the heat source.

Example six:

the utility model provides a novel ultra-thin pulsation heat pipe exchanger space flight heat transfer device, the pipe fitting material is the tubulose multitube hole display tube of aluminium 3003 oblate, body 1 adopts ultra-thin super small wall thickness special technology structure, and bend in succession many times, heat pipe surface area limit is super large, display welding aluminium foil fin on the pipe fitting in addition, limit greatly increases heat transfer area, heat conduction working medium adopts acetone, ammonia and the various low temperature refrigerants that fuse mutually with the aluminum product, can work at ultra-low temperature environment, the weight is ultralight and possess the big surface area of limit, these characteristics are applicable to deep space equipment thermal management applications such as aviation, space flight, little star very much.

While the utility model has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The closed-loop pulsating heat transfer pipe is characterized by comprising a continuously bent pipe body (1), wherein two ends of the pipe body (1) are connected through a liquid filling pipe (2) to form a closed-loop structure, pipe holes (4) are formed in the pipe body (1) in an array mode, heat conducting working media are pumped in the pipe holes (4) in a vacuum mode and filled in the pipe holes, and the heat conducting working media continuously reciprocate in a closed-loop pipeline formed by the pipe body (1).

2. A closed-loop pulsating heat transfer pipe as in claim 1 wherein the cross-section of said pipe body (1) is flat or circular or rectangular.

3. A closed-loop pulsating heat transfer pipe as claimed in claim 1 wherein said pipe hole (4) is circular or square or rectangular.

4. A closed-loop pulsating heat transfer pipe heat-dissipating heat exchanger is characterized in that: the heat dissipating fins (3) are disposed between the tubular bodies (1) of the closed-loop pulsating heat transfer pipe as claimed in claim 1.