Installation structure of heat pipe for road ice melting and equalization

Abstract

The present invention belongs to the technical field of road and bridge engineering, and provides an installation structure of a heat pipe for melting ice and equalizing heat in roads, which also includes a sleeve, which is sleeved outside the heat pipe condensation section; a heat transfer support structure is arranged on the sleeve, and the heat transfer support structure includes a protrusion, which is arranged on the inner wall of the sleeve and located at the lower part of the sleeve; two protrusions are arranged, and the two protrusions are arranged in pairs and at intervals along the radial direction of the sleeve; the heat pipe condensation section is located on the two protrusions, and there is a distance between the heat transfer support structure and the bottom inner wall of the sleeve; multiple groups of heat transfer support structures are arranged in pairs along the length direction of the sleeve, and the distribution density of the heat transfer support structure gradually increases along the direction from the high temperature end to the low temperature end of the heat pipe condensation section. The ice and snow melting effect of the heat pipe condensation section buried over a long distance is made more uniform, and the ice and snow melting effect of the heat pipe condensation section buried over a long distance on the road surface or bridge deck structure is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of road and bridge engineering, and in particular relates to an installation structure of a heat pipe for melting ice and equalizing heat on a road. Background Art

[0002] Snow and ice on roads in winter pose a serious threat to traffic, causing traffic jams at best and traffic accidents at worst. At present, the main methods of road snow removal include traditional mechanical snow shoveling, snow melting agents and road heating snow melting. Among them, traditional mechanical snow shoveling consumes a lot of manpower and has low efficiency, snow melting agents have certain pollution to the environment, and road heating snow melting has a high cost, but is highly efficient and pollution-free.

[0003] There are mainly direct electric heating, fluid pipeline heating, heat pipe heating and other methods for road heating to melt snow and ice. Compared with direct electric heating, fluid pipeline heating is often used in conjunction with heat pumps, has higher heating efficiency, and can also use a wider range of heat sources, but usually requires the burial of a large number of pipes with thicker diameters, and can only be buried in deeper layers, and is often used in cement concrete pavements or bridge decks. Heat pipes are artificial components with excellent heat transfer performance. They make full use of the heat conduction principle and the rapid heat transfer properties of phase change media. Through heat pipes, the heat of the heating object is quickly transferred to the outside of the heat source. Its thermal conductivity exceeds that of any known metal. Gravity heat pipes are mainly used for road ice and snow melting. Gravity heat pipes consist of three parts: the main body is a closed metal tube shell, and there is a small amount of working medium working fluid and capillary structure tube core in the internal cavity. From the heat transfer condition, the heat pipe can be divided into an evaporation section and a condensation section along the axial direction. According to application needs, an insulation section can be arranged between the two sections. The basic working principle of the heat pipe is: in the evaporation section of the heat pipe, the working liquid in the tube core evaporates due to heat and takes away heat. This heat is the latent heat of evaporation of the working liquid. The steam flows from the central channel to the condensation section of the heat pipe, condenses into liquid, and releases latent heat at the same time. Under the action of the capillary structure, the liquid returns to the evaporation section, thus completing a closed cycle, thereby transferring a large amount of heat from the heating section to the condensation section.

[0004] Specifically, the heat pipe condensation section is buried in the road surface or bridge deck structure to heat the road surface or bridge deck structure, thereby melting the snow on the road surface or bridge deck structure. Figure 1 As shown, the serpentine heat pipe condensation section 1 is buried in the road surface or bridge deck structure 3 along the direction of vehicle traffic. The serpentine heat pipe condensation section 1 has the advantage of a larger heating area, but has the disadvantages of a longer total length of the heat pipe condensation section 1 and high energy consumption. Figure 2As shown, the heat pipe condensation section 1 is buried in the road surface or bridge deck structure 3 along the vehicle driving direction L; there are two heat pipe condensation sections 1, and the two heat pipe condensation sections 1 are arranged at intervals along the width direction of the road surface or bridge deck structure 3, and the spacing between the two heat pipe condensation sections 1 is roughly equal to the wheelbase of the vehicle. Compared with the heat pipe condensation section with a serpentine structure, it has the advantages of saving energy consumption and convenient construction. Since the heat pipe condensation section 1 has heat loss during the heat exchange process, it has a high temperature end and a low temperature end. In actual construction, the laying length of the single-side heat pipe condensation section 1 is greater than 60 meters. Due to the long length of the single-side heat pipe condensation section 1, the ice and snow melting effect of the heat pipe condensation section 1 gradually decreases along the direction from its own high temperature end to the low temperature end. In other words, the closer to the high temperature end of the heat pipe condensation section 1, the better the ice and snow melting effect on the road surface or bridge deck structure; the closer to the low temperature end of the heat pipe condensation section 1, the worse the ice and snow melting effect on the road surface or bridge deck structure, and even the effect of melting ice and snow cannot be achieved. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an installation structure for a road ice-melting and heat-equalizing heat pipe, so that the ice-melting and snow-melting effect of the heat pipe condensation section buried over a long distance is more uniform, thereby improving the ice and snow melting effect of the heat pipe condensation section buried over a long distance on the road surface or bridge deck structure.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the installation structure of the road ice melting and heat equalizing heat pipe includes a heat pipe condensation section, which is buried in the road surface or bridge deck structure along the vehicle driving direction L; the heat pipe condensation section is provided with two, and the two heat pipe condensation sections are arranged at intervals along the width direction of the road surface or bridge deck structure; it also includes a sleeve, which is sleeved outside the heat pipe condensation section; the sleeve is provided with a heat transfer support structure, and the heat transfer support structure includes a protrusion, which is provided on the inner wall of the sleeve and located at the lower part of the sleeve; the protrusion is provided with two, and the two protrusions are arranged in pairs and at intervals along the radial direction of the sleeve; the heat pipe condensation section is located on the two protrusions and has a distance from the bottom inner wall of the sleeve;

[0007] The heat transfer support structure is provided in multiple groups, and the multiple groups of heat transfer support structures are arranged in pairs along the length direction of the sleeve. The distribution density of the heat transfer support structures gradually increases along the direction from the high temperature end to the low temperature end of the heat pipe condensation section.

[0008] Furthermore, the inner wall at the top of the sleeve has a heat-conducting curved surface with an opening facing downward, and the heat-conducting curved surface is adapted to and in contact with the top of the heat pipe condensation section;

[0009] There are multiple heat-conducting curved surfaces, which are arranged in pairs along the length direction of the sleeve, and the distribution density of the heat-conducting curved surfaces gradually increases along the direction from the high-temperature end to the low-temperature end of the heat pipe condensation section.

[0010] Furthermore, the protrusion and the sleeve are an integral structure formed in one piece.

[0011] Furthermore, the heat conductive curved surface and the sleeve are an integral structure formed in one piece.

[0012] Furthermore, the casing is made of steel.

[0013] Compared with the prior art, the invention has the following beneficial effects: the invention provides an installation structure for a heat pipe for melting ice and equalizing heat on a road, which makes the melting effect of the heat pipe condensation section buried over a long distance more uniform, and improves the melting effect of the heat pipe condensation section buried over a long distance on the ice and snow on the road surface or bridge deck structure. It also has the advantages of simple structure and convenient construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a serpentine-shaped heat pipe condensation section buried in a road surface or bridge deck structure along a vehicle travel direction L;

[0015] Figure 2 It is a schematic diagram of the heat pipe condensation section being buried in the road surface or bridge deck structure along the vehicle travel direction L;

[0016] Figure 3 It is a schematic diagram of placing the casing outside the condensing section of the heat pipe and then burying it together in the road surface or bridge deck structure;

[0017] Figure 4 1 is a schematic diagram of the casing structure viewed from above;

[0018] Figure 5 It is a schematic diagram of the position where the top of the heat pipe condensation section contacts the heat conductive curved surface;

[0019] Figure 6 is a schematic diagram of the position where the top of the heat pipe condensation section does not contact the top inner wall of the casing;

[0020] Figure numerals: 1 - heat pipe condensation section; 101 - high temperature end; 102 - low temperature end; 2 - casing; 201 - protrusion; 202 - heat conductive curved surface; 3 - road surface or bridge deck structure. DETAILED DESCRIPTION

[0021] The following is combined with Figure 3 , 4 , 5 and 6, and examples further illustrate the present invention.

[0022] The installation structure of the road ice melting and heat equalizing heat pipe comprises a heat pipe condensation section 1, which is buried in the road surface or bridge deck structure 3 along the vehicle travel direction L; two heat pipe condensation sections 1 are provided, and the two heat pipe condensation sections 1 are arranged at intervals along the width direction of the road surface or bridge deck structure 3; it also comprises a sleeve 2, which is sleeved outside the heat pipe condensation section 1; a heat transfer support structure is provided on the sleeve 2, and the heat transfer support structure comprises a protrusion 201, which is provided on the inner wall of the sleeve 2 and is located at the The lower part of the sleeve 2; the protrusions 201 are provided with two, and the two protrusions 201 are arranged in pairs and at intervals along the radial direction of the sleeve 2; the heat pipe condensation section 1 is located on the two protrusions 201, and there is a distance between it and the bottom inner wall of the sleeve 2; the heat transfer support structure is provided with multiple groups, and the multiple groups of heat transfer support structures are arranged at intervals in twos along the length direction of the sleeve 2, and the distribution density of the heat transfer support structure gradually increases from the high temperature end 101 to the low temperature end 102 of the heat pipe condensation section 1.

[0023] The casing 2 plays a role in protecting the heat pipe condensation section 1. By setting a plurality of heat transfer support structures arranged in pairs along the length direction of the casing 2 on the inner wall of the casing 2, the heat pipe condensation section 1 is raised and stably supported. The heat generated by the heat pipe condensation section 1 is transferred to the casing 2 through the protrusion 201, and then transferred to the road surface or bridge deck structure 3 through the casing 2. The smaller the distribution density of the heat transfer support structure, the smaller the heat generated by the heat pipe condensation section 1 is transferred to the casing 2 through the protrusion 201; the greater the distribution density of the heat transfer support structure, the greater the heat generated by the heat pipe condensation section 1 is transferred to the casing 2 through the protrusion 201. The ice and snow melting effect of the heat pipe condensation section 1 buried over a long distance is made more uniform, and the ice and snow melting effect of the heat pipe condensation section 1 buried over a long distance on the road surface or bridge deck structure 3 is improved.

[0024] Preferably, the inner wall at the top of the sleeve 2 has a heat-conducting curved surface 202 with an opening facing downward, and the heat-conducting curved surface 202 is adapted to and in contact with the top of the heat pipe condensation section 1; there are multiple heat-conducting curved surfaces 202, and the multiple heat-conducting curved surfaces 202 are arranged in pairs along the length direction of the sleeve 2, and the distribution density of the heat-conducting curved surfaces 202 gradually increases along the direction from the high-temperature end 101 to the low-temperature end 102 of the heat pipe condensation section 1. The sleeve 2 is in surface contact with the top of the heat pipe condensation section 1 through the heat-conducting curved surface 202. The smaller the distribution density of the heat-conducting curved surface 202, the smaller the heat generated by the heat pipe condensation section 1 is transferred to the sleeve 2 through the heat-conducting curved surface 202; the greater the distribution density of the heat-conducting curved surface 202, the greater the heat generated by the heat pipe condensation section 1 is transferred to the sleeve 2 through the heat-conducting curved surface 202. Along the direction from the high temperature end 101 to the low temperature end 102 of the heat pipe condensation section 1, the temperature transferred from the sleeve 2 to the road surface or bridge deck structure 3 is made more uniform, thereby improving the melting effect of the ice and snow on the road surface or bridge deck structure 3 by the heat pipe condensation section 1 buried over a long distance.

[0025] The protrusion 201 can be welded and fixed on the inner wall of the sleeve 2, but there is a disadvantage of inconvenient processing. Preferably, the protrusion 201 and the sleeve 2 are an integral structure formed in one piece. The sleeve 2 is pressed toward the center of the sleeve 2 using a push rod or pliers to make the wall of the sleeve 2 concave to form the protrusion 201.

[0026] Preferably, the heat-conducting curved surface 202 is an integral structure formed integrally with the sleeve 2. By pressing the top of the sleeve 2, the top of the sleeve 2 is deformed, so that the top inner wall of the sleeve 2 forms a curved surface structure that matches and contacts the top of the heat pipe condensing section 1, and the curved surface structure serves as the heat-conducting curved surface.

[0027] The sleeve 2 may be a hard alloy product. Preferably, the sleeve 2 is a steel product.

[0028] The embodiments of this specific implementation are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An installation structure of a heat pipe for melting ice and equalizing heat on a road, comprising a heat pipe condensation section (1), wherein the heat pipe condensation section (1) is buried in a road surface or a bridge deck structure (3) along a vehicle travel direction L; two heat pipe condensation sections (1) are provided, and the two heat pipe condensation sections (1) are arranged at intervals along a width direction of the road surface or the bridge deck structure (3); and the characteristics are: The heat pipe condensing section (1) further comprises a sleeve (2), the sleeve (2) being sleeved outside the heat pipe condensing section (1); a heat transfer support structure is arranged on the sleeve (2), the heat transfer support structure comprises a protrusion (201), the protrusion (201) is arranged on the inner wall of the sleeve (2) and is located at the lower part of the sleeve (2); two protrusions (201) are arranged in pairs and at intervals along the radial direction of the sleeve (2); the heat pipe condensing section (1) is located on the two protrusions (201) and has a distance from the bottom inner wall of the sleeve (2); The heat transfer support structure is provided in multiple groups, and the multiple groups of heat transfer support structures are arranged in pairs along the length direction of the sleeve (2). The distribution density of the heat transfer support structures gradually increases along the direction from the high-temperature end (101) to the low-temperature end (102) of the heat pipe condensation section (1).

2. The installation structure of the road ice melting and heat equalizing heat pipe according to claim 1 is characterized in that: The inner wall at the top of the sleeve (2) has a heat-conducting curved surface (202) with an opening facing downward, and the heat-conducting curved surface (202) is adapted to and in contact with the top of the heat pipe condensation section (1); A plurality of the heat-conducting curved surfaces (202) are provided, and the plurality of the heat-conducting curved surfaces (202) are arranged in pairs along the length direction of the sleeve (2), and the distribution density of the heat-conducting curved surfaces (202) gradually increases along the direction from the high-temperature end (101) to the low-temperature end (102) of the heat pipe condensation section (1).

3. The installation structure of the road ice melting and heat equalizing heat pipe according to claim 1, characterized in that: The protrusion (201) and the sleeve (2) are an integral structure formed in one piece.

4. The installation structure of the road ice melting and heat equalizing heat pipe according to claim 2, characterized in that: The heat-conducting curved surface (202) and the sleeve (2) are an integral structure formed in one piece.

5. The installation structure of the road ice melting and heat equalizing heat pipe according to claim 1, characterized in that: The sleeve (2) is made of steel.

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