CN210070693U

CN210070693U - Sliding heat pipe combined radiator

Info

Publication number: CN210070693U
Application number: CN201920424199.9U
Authority: CN
Inventors: 徐郡; 赵蔚琳; 王晓智; 王波; 段广彬
Original assignee: University of Jinan
Current assignee: University of Jinan
Priority date: 2019-04-01
Filing date: 2019-04-01
Publication date: 2020-02-14
Anticipated expiration: 2029-04-01

Abstract

The utility model relates to a heat pipe combination radiator of slidingtype belongs to thermal engineering technical application. The heat pipe combined radiator comprises a flat heat pipe and an axial heat pipe; the flat heat pipe comprises a cuboid closed vacuum shell, and the axial heat pipe comprises a long cylindrical closed vacuum shell; the inner wall surface of the closed vacuum shell is attached with a capillary structure and is filled with a heat transfer medium; the lower wall surface of the cuboid of the flat heat pipe is used as a heating end and is connected with an external heat source, and the upper wall surface of the cuboid is used as a condensation end and is contacted with the axial heat pipe; at least one concave channel is arranged on the wall surface of the condensation end of the flat heat pipe; at least one of the flat heat pipes is used as a heat source to heat the axial heat pipe, and the other flat heat pipes are used as a cold source to cool the axial heat pipe to strengthen heat dissipation. The device combines the flat heat pipe and the axial heat pipe together, the flat heat pipe is used as a heating source and a radiator, the isothermal performance of the heating end of the axial heat pipe can be improved, the heat radiation performance of the axial heat pipe can be enhanced, and the flat heat pipe can flexibly slide on the axial heat pipe.

Description

Sliding heat pipe combined radiator

Technical Field

The utility model relates to a heat pipe combination radiator of slidingtype belongs to heat transfer technical field for the intensive heat transfer of engineering.

Background

The heat pipe is one of the most effective heat transfer elements and is widely applied to various fields of chemical industry, metallurgy, aerospace and the like. In the application process, one end of the heat pipe is heated by external heat, so that the heat transfer medium in the heat pipe is evaporated and transferred to the other end to be condensed, and heat exchange is completed. Heat pipes can be classified into flat heat pipes and axial heat pipes according to their shapes. The flat heat pipe is used for transferring heat along the vertical direction, has good isothermal property, and does not have the characteristic of long-distance heat transfer. The axial heat pipe transfers heat along the axial direction and has the characteristic of long-distance heat transmission. For the characteristics that combine dull and stereotyped heat pipe and axial heat pipe, the biggest heat transfer benefit of dull and stereotyped heat pipe and axial heat pipe is exerted more effectively in a flexible way, the utility model provides a heat pipe combination radiator of slidingtype can conveniently transmit the heat to the place that engineering needs at any time, both can realize one-way heat transfer and also can realize two-way heat transfer, does not receive the restraint of traditional heat exchanger, realizes the heat exchange on the engineering to the maximize.

Disclosure of Invention

The utility model aims to provide a sliding heat pipe combined radiator, which utilizes the characteristics of a flat heat pipe and an axial heat pipe to develop a heat exchange device which can be slidably, flexibly, conveniently, quickly and timely transferred by external heat and quickly radiate the heat; the heat pipe has the advantages of no power consumption, no noise, high heat dissipation efficiency, capability of meeting the requirement of enhanced heat dissipation in engineering and enhanced application value of the heat pipe in the actual engineering.

In order to achieve the purpose, the utility model adopts the following technical proposal.

A sliding heat pipe combined radiator comprises at least two flat heat pipes and at least one axial heat pipe; the flat heat pipe comprises a cuboid closed vacuum shell, and the axial heat pipe comprises a long cylindrical closed vacuum shell; capillary structures are attached to the inner wall surfaces of the flat heat pipe and the axial heat pipe closed vacuum shell, and heat transfer media are filled in the capillary structures; the lower wall surface of the cuboid of the flat heat pipe is used as a heating end and is contacted with an external heat source, and the upper wall surface of the cuboid is used as a condensation end and is contacted with the axial heat pipe; the condensation end wall surface of the flat heat pipe is provided with at least one concave channel, so that the axial heat pipe is ensured to be clamped in the concave channel and can freely slide to receive heat exchange of the flat heat pipe; at least one of the flat heat pipes is used as a heat source to heat the axial heat pipe, and the other flat heat pipes are used as a cold source to cool the axial heat pipe to strengthen heat dissipation.

As a further optimization of the scheme, the vacuum pressure in the sealed vacuum shell of the flat heat pipe and the axial heat pipe is 10^-3～10^-5Handkerchief; the capillary structure on the inner wall surface of the closed vacuum shell is a wire mesh liquid absorption core or a groove liquid absorption core.

As a further optimization of the scheme, when the working temperature of the flat heat pipe and the axial heat pipe is controlled to be 600-1000 ℃, the heat transfer medium filled in the closed vacuum shell is liquid metal potassium or sodium; when the working temperature is controlled to be 250-600 ℃, the heat transfer medium filled in the sealed vacuum shell is mercury or heat conducting plastic; when the working temperature of the heat pipe is controlled to be 40-250 ℃, the heat transfer medium filled in the sealed vacuum shell is water or water-based nanoparticle suspension.

As a further optimization of the scheme, the flat heat pipe and the axial heat pipe shell are made of one or more of stainless steel, carbon steel and copper.

As a further optimization of the scheme, the length of the flat heat pipe is 1/2-1/4 of the length of the axial heat pipe, the height of the flat heat pipe is 1.5-2 times of the diameter of the axial heat pipe, the height-to-width ratio of the flat heat pipe is 1: 1-1: 1.2, and the height of the groove on the wall surface of the condensation end is 0.6-1 times of the diameter of the axial heat pipe.

The utility model discloses beneficial effect: the flat heat pipe and the axial heat pipe are combined together by fully utilizing the characteristics of the flat heat pipe and the axial heat pipe, the flat heat pipe is used as a heating source and a radiator, the isothermal performance of the heating end of the axial heat pipe can be improved, the heat radiation performance of the axial heat pipe can be enhanced, the axial heat pipe can flexibly slide on the axial heat pipe, heat transfer is completed in time according to the requirements of equipment on an engineering site, and the flat heat pipe and the axial heat pipe are more effectively applied to various industries and relate to the technical field of heat transfer.

Drawings

Fig. 1 is a schematic view of the internal structure of a flat heat pipe.

Fig. 2 is a schematic view of the internal structure of the axial heat pipe.

Fig. 3 is a front view of the sliding type combined heat sink with three flat heat pipes and one axial heat pipe.

FIG. 4 is a top view of the sliding type composite heat sink with three flat heat pipes and one axial heat pipe.

FIG. 5 is a side view of a sliding type composite heat sink with three flat heat pipes and one axial heat pipe.

In the figure, 1 is a flat heat pipe; 2 is a shell of the flat heat pipe; 3 is the condensation end wall surface of the flat heat pipe; 4, a capillary structure of the flat heat pipe; 5 is the heating end wall surface of the flat heat pipe; 6 is an axial heat pipe; 7 is a shell of the axial heat pipe; 8 is the capillary structure of the axial heat pipe; 9 is a first flat heat pipe; 10 is a second flat heat pipe; and 11 is a third flat plate heat pipe.

Detailed Description

The following describes the present invention with reference to fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5.

Fig. 1 is a schematic view of the internal structure of a flat heat pipe 1. The shell 2 of the flat heat pipe is machined into a cuboid with grooves on the wall surface 3 of the condensation end. The length of the shell 2 of the flat heat pipe is 1/2-1/4 times of that of the axial heat pipe shell 7, the height of the shell is 1.5-2 times of the diameter of the axial heat pipe shell 7, the height-to-width ratio of the shell is 1: 1-1: 1.2, and the height of the concave channel on the wall surface 3 of the condensation end is 0.6-1 times of that of the axial heat pipe shell 7. After the shell 2 and the capillary structure 4 of the flat heat pipe are cleaned by ultrasonic waves to remove oil stains, the capillary structure 4 is plugged into the shell 2 of the flat heat pipe and is tightly attached to the inner surface of the shell 2, and the shell is vacuumized to 10 DEG^-3～10^-5After the parr, 10-30% of conveying is refilledAnd the heat medium is packaged and welded into the flat heat pipe 1.

Fig. 2 is a schematic view of the internal structure of the axial heat pipe 6. The housing 7 of the axial heat pipe is formed by machining a horizontal long cylindrical pipe. After the shell 7 and the capillary structure 8 of the axial heat pipe are cleaned by ultrasonic waves to remove oil stains, the capillary structure 8 is plugged into the shell 7 of the axial heat pipe and tightly attached to the inner surface of the shell 7 of the axial heat pipe, ultrasonic cleaning is carried out again after one end of the shell is closed, and vacuum pumping is carried out until the pressure is 10 DEG^-3～10^-5And (3) after the heat pipe is filled with 10-30% of heat transfer medium, and then the heat pipe is packaged and welded to form the axial heat pipe 6.

Fig. 3, 4 and 5 are front, top and side views of the sliding type combined heat sink with three flat heat pipes and one axial heat pipe. One axial heat pipe 6 is inserted into the condensation end groove wall surface 3 of the first flat heat pipe 9, the second flat heat pipe 10 and the third flat heat pipe 11, so that the three flat heat pipes are connected in series on the axial heat pipe 6 and can freely slide. When the heating end of the second flat heat pipe 10 receives external heat, the heat transfer medium inside the flat heat pipe 10 is heated and evaporated and flows to the condensation end of the flat heat pipe 10 along the vertical direction; the heat released from the condensation end is transferred to the axial heat pipe 6, the heat transfer medium in the axial heat pipe 6 receives the heat and then generates steam which flows to the two ends of the axial heat pipe 6 along the axial direction, and the heat released is transferred to the condensation ends of the first flat heat pipe 9 and the third flat heat pipe 10; after the condensation ends of the first flat heat pipe 9 and the third flat heat pipe 10 are heated, the internal heat transfer medium is heated and evaporated to generate vapor, and the vapor flows to the heating ends of the

flat heat pipes

9 and 10 to release heat, so that the heat circulation process is completed.

Claims

1. The utility model provides a heat pipe combination radiator of slidingtype which characterized in that: the heat pipe comprises at least two flat heat pipes and at least one axial heat pipe; the flat heat pipe comprises a cuboid closed vacuum shell, and the axial heat pipe comprises a long cylindrical closed vacuum shell; capillary structures are attached to the inner wall surfaces of the flat heat pipe and the axial heat pipe closed vacuum shell, and heat transfer media are filled in the capillary structures; the lower wall surface of the cuboid of the flat heat pipe is used as a heating end and is contacted with an external heat source, and the upper wall surface of the cuboid is used as a condensation end and is contacted with the axial heat pipe; the condensation end wall surface of the flat heat pipe is provided with at least one concave channel, so that the axial heat pipe is ensured to be clamped in the concave channel and can freely slide to receive heat exchange of the flat heat pipe; at least one of the flat heat pipes is used as a heat source to heat the axial heat pipe, and the other flat heat pipes are used as a cold source to cool the axial heat pipe to strengthen heat dissipation.

2. The sliding heat pipe combination heat sink of claim 1, wherein: the vacuum pressure in the sealed vacuum shell of the axial heat pipe and the flat heat pipe is 10^-3～10^-5And (6) handkerchief.

3. The sliding heat pipe combination heat sink of claim 1, wherein: the capillary structure on the inner wall surface of the closed vacuum shell is a wire mesh liquid absorption core or a groove liquid absorption core.

4. The sliding heat pipe combination heat sink of claim 1, wherein: when the working temperature of the flat heat pipe and the axial heat pipe is controlled to be 600-1000 ℃, the heat transfer medium filled in the closed vacuum shell is liquid metal potassium or sodium; when the working temperature is controlled to be 250-600 ℃, the heat transfer medium filled in the sealed vacuum shell is mercury or heat conducting plastic; when the working temperature of the heat pipe is controlled to be 40-250 ℃, the heat transfer medium filled in the sealed vacuum shell is water or water-based nanoparticle suspension.

5. The sliding heat pipe combination heat sink of claim 1, wherein: the flat heat pipe and the axial heat pipe shell are made of one or more of stainless steel, carbon steel and copper.

6. The sliding heat pipe combination heat sink of claim 1, wherein: the length of the flat heat pipe is 1/2-1/4 of the length of the axial heat pipe, the height of the flat heat pipe is 1.5-2 times of the diameter of the axial heat pipe, the height-to-width ratio of the flat heat pipe is 1: 1-1: 1.2, and the height of the groove on the wall surface of the condensation end is 0.6-1 times of the diameter of the axial heat pipe.

7. The sliding heat pipe combination heat sink of any one of claims 1-6, wherein: the number of the flat heat pipes is three, and the number of the axial heat pipes is one; an axial heat pipe is embedded into the wall surfaces of the grooves at the condensation ends of the three flat heat pipes, so that the three flat heat pipes are connected in series on the axial heat pipe and can freely slide; one flat heat pipe is used as a heat source, and the two flat heat pipes are used as cold sources.