Road ice-melting soaking heat pipe mounting structure capable of changing heat transfer area

Abstract

The utility model belongs to the technical field of road and bridge engineering, and particularly relates to a road ice-melting soaking heat pipe mounting structure capable of changing the heat transfer area. The heat pipe condensation structure comprises a heat pipe condensation section which is buried in a road surface or a bridge floor structure in the vehicle driving direction L; the number of the heat pipe condensation sections is two, and the two heat pipe condensation sections are arranged in the width direction of the road surface or the bridge deck structure at intervals. The sleeve is arranged outside the condensation section of the heat pipe in a sleeving manner; a uniform-temperature heat transfer structure is arranged between the heat pipe condensation section and the sleeve, and the contact area of the uniform-temperature heat transfer structure and the sleeve is gradually increased in 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 long-distance buried heat pipe condensation section is uniform, and the melting effect of the long-distance buried heat pipe condensation section on ice and snow on the road surface or the bridge surface is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of road and bridge engineering, and particularly relates to a road ice melting and heat equalizing heat pipe installation structure that changes the heat transfer area. Background Art

[0002] Snow and ice accumulation on roads in winter pose a serious threat to traffic flow, causing traffic jams at best and accidents at worst. Currently, the main methods for snow removal include traditional mechanical snow shoveling, snow melting agents, and road heating. Traditional mechanical snow shoveling is labor-intensive and inefficient, while snow melting agents can pollute the environment. Road heating is more expensive, but highly efficient and pollution-free.

[0003] Road heating for deicing and snow melting primarily involves direct electric heating, fluid pipe heating, and heat pipe heating. Compared to direct electric heating, fluid pipe heating, often used in conjunction with a heat pump, offers higher heating efficiency and can accommodate a wider range of heat sources. However, it typically requires the laying of a large number of thicker pipes, which can only be buried at greater depths. It is commonly used in cement concrete pavements or bridge decks. Heat pipes are man-made components with excellent heat transfer properties. They leverage the principles of heat conduction and the rapid heat transfer properties of phase change media to rapidly transfer heat from a heating object to the heat source. Their thermal conductivity exceeds that of any known metal. Gravity-based heat pipes are primarily used for deicing and snow melting. Gravity-based heat pipes consist of three components: a closed metal tube shell and tube body, with a small amount of working fluid and a capillary wick within the internal cavity. In terms of heat transfer, the heat pipe can be divided axially into an evaporation section and a condensation section. Depending on the application, an insulating section can be placed between the two sections. The basic working principle of a heat pipe is as follows: in the evaporation section of the heat pipe, the working fluid in the tube core evaporates due to heat, and takes away heat. This heat is the latent heat of evaporation of the working fluid. 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] The heat pipe condensation section is buried in the road surface or bridge deck structure to heat the road surface or bridge deck structure and then melt 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, a heat pipe condensation section 1 is buried in the road surface or bridge deck structure 3 along the vehicle's travel direction L. Two heat pipe condensation sections 1 are provided, spaced apart along the width of the road surface or bridge deck structure 3, with the spacing between the two sections roughly equal to the vehicle's wheelbase. Compared to heat pipe condensation sections with a serpentine structure, this heat pipe condensation section offers advantages such as energy savings and easier construction. Due to heat loss during heat exchange, the heat pipe condensation section 1 has a high-temperature end and a low-temperature end. In actual construction, the installation length of a single heat pipe condensation section 1 is greater than 60 meters. Due to the long length of a single heat pipe condensation section 1, the ice and snow melting efficiency of the heat pipe condensation section 1 gradually decreases from the high-temperature end to the low-temperature end. Specifically, 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, or even no ice and snow melting effect at all. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a road ice-melting and heat-equalizing heat pipe installation structure that changes the heat transfer area, so that the ice-melting and snow-melting effect of the heat pipe condensation section buried over a long distance is 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.

[0006] The utility model solves the technical problem by adopting the following technical solutions: a heat pipe installation structure for melting ice on a road, which changes the heat transfer area, includes a heat pipe condensation section, which is buried in the road surface or bridge deck structure along the vehicle travel direction L; two heat pipe condensation sections are provided, and the two heat pipe condensation sections are spaced apart along the width direction of the road surface or bridge deck structure; the utility model also includes a sleeve, which is sleeved outside the heat pipe condensation section; the bottom of the heat pipe condensation section is in contact with the inner wall of the sleeve, and a cavity is formed between the inner wall of the sleeve and the outer wall of the heat pipe condensation section;

[0007] The sleeve is provided with a through hole communicating with the cavity. A plurality of through holes are provided along the direction from the high temperature end to the low temperature end of the heat pipe condensation section, so that the contact area between the sleeve and the road surface or bridge deck structure gradually increases.

[0008] Furthermore, the apertures of the through holes are equal, and the distribution density of the through holes gradually decreases along the direction from the high-temperature end to the low-temperature end of the condensation section of the heat pipe.

[0009] Furthermore, the aperture of the through hole gradually decreases along the direction from the high temperature end to the low temperature end of the heat pipe condensation section; and the plurality of through holes are evenly distributed along the direction from the high temperature end to the low temperature end of the heat pipe condensation section.

[0010] Furthermore, it also includes a heat insulation shielding member installed at the through hole.

[0011] Furthermore, the heat-insulating shielding member includes a heat-insulating arc-shaped baffle covering the outside of the through hole, and the recessed side of the heat-insulating arc-shaped baffle is connected to a heat-insulating sealing head that is snap-fitted with the through hole.

[0012] Furthermore, the through hole is a square hole.

[0013] Furthermore, the sleeve is made of steel.

[0014] Furthermore, the through hole is arranged at the top of the sleeve.

[0015] Compared with existing technologies, the present invention offers the following advantages: It provides a heat pipe installation structure for road ice melting and heat distribution that varies the heat transfer area, resulting in more uniform ice and snow melting across long buried heat pipe condensation sections, improving the effectiveness of such sections in melting ice and snow on road surfaces or bridge decks. It also offers advantages such as a simple structure and convenient construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 the vehicle travel direction L;

[0017] Figure 2 This is a schematic diagram of a heat pipe condensation section buried in a road surface or bridge deck structure along the vehicle travel direction L;

[0018] Figure 3 This is a schematic structural diagram of one embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the positions of the heat pipe condensation section, casing, and road or bridge deck structure in the utility model;

[0020] Figure 5 This is a schematic diagram of the installation structure of the heat insulation shielding member in the utility model;

[0021] Figure 6 This is a schematic structural diagram of the heat-insulating shielding member in the present invention;

[0022] Figure markings: 1-heat pipe condensation section; 101-high temperature end; 102-low temperature end; 2-casing; 201-through hole; 3-road surface or bridge deck structure; 4-cavity; 5-thermal insulation shielding member; 501-thermal insulation arc baffle; 502-thermal insulation plugging head. DETAILED DESCRIPTION

[0023] The following is combined with Figure 3 、 4 , 5 and 6, as well as embodiments, further illustrate the present invention.

[0024] A road ice-melting and heat-equalizing heat pipe installation structure that changes the heat transfer area includes 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 includes a sleeve 2, which is sleeved outside the heat pipe condensation section 1; the bottom of the heat pipe condensation section 1 is in contact with the inner wall of the sleeve 2, and a cavity 4 is provided between the inner wall of the sleeve 2 and the outer wall of the heat pipe condensation section 1; a through hole 201 connected to the cavity 4 is opened on the sleeve 2, and a plurality of through holes 201 are provided along the direction from the high-temperature end 101 to the low-temperature end 102 of the heat pipe condensation section 1, so that the contact area between the sleeve 2 and the road surface or bridge deck structure 3 gradually increases.

[0025] The sleeve 2 is mounted on the outside of the heat pipe condensation section 1. Due to gravity, the bottom of the heat pipe condensation section 1 is in contact with the inner wall of the sleeve 2. The heat pipe condensation section 1 generates heat and transfers the heat to the road surface or bridge deck structure 3 through the sleeve 2. Hot air flows in the cavity 4 between the inner wall of the sleeve 2 and the outer wall of the heat pipe condensation section 1. By providing a plurality of through holes 201 on the sleeve 2, the contact area between the sleeve 2 and the road surface or bridge deck structure 3 is gradually increased. The two work together to make the temperature transferred from the sleeve 2 to the road surface or bridge deck structure 3 more uniform along the direction from the high-temperature end 101 to the low-temperature end 102 of the heat pipe condensation section 1. This makes the ice and snow melting effect of the heat pipe condensation section 1 buried over a long distance more uniform, and improves the effect of the heat pipe condensation section 1 buried over a long distance on melting ice and snow on the road surface or bridge deck structure 3.

[0026] Along the direction from the high temperature end 101 to the low temperature end 102 of the heat pipe condensation section 1, a plurality of through holes 201 are provided, so that the contact area between the sleeve 2 and the road surface or bridge deck structure 3 is gradually increased. Specific implementations include the following:

[0027] In the first embodiment, the apertures of the through holes 201 are equal, and the distribution density of the through holes 201 gradually decreases along the direction from the high-temperature end 101 to the low-temperature end 102 of the heat pipe condensation section 1 .

[0028] In the second embodiment, the aperture of the through hole 201 gradually decreases along the direction from the high temperature end 101 to the low temperature end 102 of the heat pipe condensation section 1; multiple through holes 201 are evenly distributed along the direction from the high temperature end 101 to the low temperature end 102 of the heat pipe condensation section 1.

[0029] Both of the above-mentioned specific implementations can achieve a gradual increase in the contact area between the sleeve 2 and the road surface or bridge deck structure 3 along the direction from the high-temperature end 101 to the low-temperature end 102 of the heat pipe condensation section 1.

[0030] In order to prevent concrete mortar from entering the through hole 201, preferably, a heat insulating shielding member 5 is further included which is installed at the through hole 201. The heat insulating shielding member 5 is made of a material with a low thermal conductivity coefficient such as foamed polyurethane or rock wool.

[0031] The heat-insulating shielding member 5 can be a columnar structure adapted to fit the through hole 201. Preferably, the heat-insulating shielding member 5 includes a heat-insulating arc-shaped baffle 501 covering the through hole 201. The recessed side of the heat-insulating arc-shaped baffle 501 is connected to a heat-insulating plug 502 that snaps into engagement with the through hole 201. The heat-insulating arc-shaped baffle 501 blocks the gap between the sidewall of the through hole 201 and the sidewall of the heat-insulating plug 502, thereby preventing moisture in the concrete mortar from entering the casing 2.

[0032] The through hole 201 may be a circular hole. Preferably, the through hole 201 is a square hole.

[0033] The sleeve 2 may be made of cemented carbide. Preferably, the sleeve 2 is made of steel.

[0034] The through hole 201 is provided on the side of the sleeve 2 . Preferably, the through hole 201 is provided on the top of the sleeve 2 .

[0035] The embodiments of this specific implementation are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A heat pipe installation structure for melting ice on a road and equalizing heat for changing the heat transfer area, 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 spaced apart in a width direction of the road surface or the bridge deck structure (3); and characterized in that: It also includes a sleeve (2), which is sleeved outside the heat pipe condensation section (1); the bottom of the heat pipe condensation section (1) is in contact with the inner wall of the sleeve (2), and a cavity (4) is provided between the inner wall of the sleeve (2) and the outer wall of the heat pipe condensation section (1); The sleeve (2) is provided with a through hole (201) communicating with the cavity (4), and a plurality of through holes (201) are provided along the direction from the high-temperature end (101) to the low-temperature end (102) of the heat pipe condensation section (1), so that the contact area between the sleeve (2) and the road surface or bridge deck structure (3) gradually increases.

2. The heat pipe installation structure for melting ice on a road with a variable heat transfer area as claimed in claim 1, characterized in that: The apertures of the through holes (201) are equal, and the distribution density of the through holes (201) gradually decreases along the direction from the high-temperature end (101) to the low-temperature end (102) of the heat pipe condensation section (1).

3. The heat pipe installation structure for melting ice on a road with a variable heat transfer area as claimed in claim 1, characterized in that: The aperture of the through hole (201) gradually decreases along the direction from the high-temperature end (101) to the low-temperature end (102) of the heat pipe condensation section (1); and a plurality of the through holes (201) are evenly distributed along the direction from the high-temperature end (101) to the low-temperature end (102) of the heat pipe condensation section (1).

4. The heat pipe installation structure for melting ice on a road with a heat transfer area changed according to any one of claims 1 to 3, characterized in that: It also includes a heat-insulating shielding member (5) installed at the through hole (201).

5. The heat pipe installation structure for melting ice on a road with a heat transfer area changed as claimed in claim 4, characterized in that: The heat-insulating shielding member (5) comprises a heat-insulating arc-shaped baffle (501) covering the outside of the through hole (201); a heat-insulating sealing head (502) engaging with the through hole (201) is connected to the recessed side of the heat-insulating arc-shaped baffle (501).

6. The heat pipe installation structure for melting ice on a road with a variable heat transfer area as claimed in claim 1, characterized in that: The through hole (201) is a square hole.

7. The heat pipe installation structure for melting ice on a road with a variable heat transfer area as claimed in claim 1, characterized in that: The sleeve (2) is made of steel.

8. The heat pipe installation structure for melting ice on a road with a variable heat transfer area as claimed in claim 1, wherein: The through hole (201) is provided at the top of the sleeve (2).

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