High-efficiency gravity type inorganic heat pipe for road snow melting

Abstract

The utility model relates to the technical field of road snow melting, in particular to a high-efficiency gravity type inorganic heat pipe for road snow melting, which comprises an evaporation pipe, a silicon carbide pipe is sleeved on the outer side of the evaporation pipe, and working fluid is filled in the evaporation pipe. A plurality of fins are arranged on the surface of the condensation cavity pipe, and a heat insulation cavity pipe is arranged between the condensation cavity pipe and the evaporation pipe; the device has the advantages that the whole device is of an inverted-L-shaped structure, the evaporation pipe of the device is embedded into a roadside roadbed, then the condensation cavity pipe is partially embedded into a pavement asphalt layer with the fins facing upwards, in the snow melting process, the temperature of the evaporation pipe is high, the temperature of the condensation cavity pipe is low, and working liquid in the evaporation pipe evaporates from the evaporation pipe and flows upwards to the condensation cavity pipe; and heat is released and condensed on the upper wall of the condensation cavity pipe and the fins, and then flows back to the evaporation pipe under the action of gravity, so that efficient transfer of heat is realized, the environment is protected while efficient snow melting is realized, and the problems of low snow removal efficiency and damage to the environment and the road surface are avoided.

Description

Technical Field

[0001] This utility model relates to the field of road snow melting technology, specifically a high-efficiency gravity-type inorganic heat pipe for road snow melting. Background Technology

[0002] Transportation is a fundamental support for rapid economic development, and highways occupy a key position in my country's road transportation system. According to statistics, more than 70% of my country's roads are affected by ice and snow in winter, leading to frequent traffic accidents, a significant decrease in road capacity and transportation efficiency, affecting people's travel safety and the timeliness of freight transportation. In addition, ice and snow also increase road maintenance costs, prolong repair time, and further exacerbate traffic congestion.

[0003] In existing technologies, traditional snow melting methods mainly rely on "passive" snow and ice removal technologies such as mechanical snow removal and chemical snow melting. Mechanical snow removal typically uses equipment such as snowplows and snow sweepers to physically remove snow from the road surface. Chemical snow melting methods, on the other hand, involve spreading de-icing agents to melt the snow and ice, thereby achieving the effect of snow and ice removal.

[0004] However, traditional snow melting methods have low snow removal efficiency, are time-consuming, and may cause some damage to the road surface and environment. Therefore, this utility model proposes a high-efficiency gravity-type inorganic heat pipe for road snow melting to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency gravity-type inorganic heat pipe for road snow melting, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency gravity-type inorganic heat pipe for road snow melting, the high-efficiency gravity-type inorganic heat pipe for road snow melting includes: an evaporator tube, a silicon carbide tube sleeved on the outside of the evaporator tube, and a working fluid filled inside the evaporator tube;

[0007] The condensing cavity tube has several fins on its surface, and an insulating cavity tube is installed between the condensing cavity tube and the evaporating tube.

[0008] Preferably, the inner wall of the evaporator tube is provided with a passivation film, an insulating cavity tube is welded to one end of the evaporator tube near the condensation cavity tube, and a conical block is welded to the other end of the evaporator tube.

[0009] Preferably, the silicon carbide tube has several grooves on its surface, a waterproof coating is provided between the silicon carbide tube and the evaporation tube, and a glass fiber cloth is attached to the outside of the silicon carbide tube, with a waterproof outer coating provided on the outside of the glass fiber cloth.

[0010] Preferably, the heat-insulating cavity tube has an inverted "L" shape, the inside of the heat-insulating cavity tube is filled with an insulation layer, the angle of the turning point of the heat-insulating cavity tube is 90°-95°, so that the condensing cavity tube connected to one end of the heat-insulating cavity tube is in a state where one side is higher than the other. The inner wall of the heat-insulating cavity tube is provided with a passivation film, and the outer wall of the heat-insulating cavity tube is covered with a protective tube.

[0011] Preferably, a sealing block is welded to the end of the condensing cavity tube away from the insulating cavity tube, and a protective ring is welded to the surface of the weld between the condensing cavity tube and the sealing block.

[0012] Preferably, the fins are fixedly installed on the outer wall of the condensing cavity tube in a plurality of semi-annular shapes, and each fin has a cavity that communicates with the inner tube of the condensing cavity tube, and the fins are inclined upward to form an inclination angle of 15°-75° with the outer wall of the condensing cavity tube.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention proposes a high-efficiency gravity-type inorganic heat pipe for road snow melting. In use, the device has an inverted "L" shape. The evaporator tube is buried in the roadside subgrade, and the condenser cavity tube is buried in the asphalt layer with the fins facing upwards. During snow melting, the evaporator tube has a high temperature, while the condenser cavity tube has a low temperature. The working liquid inside the evaporator tube evaporates and rises to the condenser cavity tube, where it releases heat and condenses on the upper wall and fins. Then, it flows back to the evaporator tube under gravity, achieving efficient heat transfer. This allows for efficient snow melting while protecting the environment, avoiding the problems of low snow removal efficiency and environmental and road damage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the structure of this utility model;

[0017] Figure 3 This is an exploded view of the structural components of this utility model.

[0018] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Evaporator tube; 2. Silicon carbide tube; 3. Working fluid; 4. Condensation cavity tube; 5. Protective tube; 6. Insulation layer; 7. Insulation cavity tube; 8. Fin; 9. Passivation film; 10. Conical block; 11. Waterproof coating; 12. Fiberglass cloth; 13. Waterproof outer coating; 14. Sealing block; 15. Protective ring. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," and "horizontal," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "a," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] For purposes of simplicity and illustration, the principles of the embodiments are described primarily by way of example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring these embodiments. Furthermore, all embodiments can be used in combination with each other.

[0024] Example 1: Please refer to Figures 1 to 4 This utility model provides a technical solution: a high-efficiency gravity-type inorganic heat pipe for road snow melting, the high-efficiency gravity-type inorganic heat pipe for road snow melting includes: an evaporator 1, a silicon carbide tube 2 sleeved on the outside of the evaporator 1, and a working fluid 3 filled inside the evaporator 1;

[0025] A condensing cavity tube 4 is provided with several fins 8 on its surface, and an insulating cavity tube 7 is provided between the condensing cavity tube 4 and the evaporating tube 1.

[0026] In use, the device has an inverted "L" shape. The evaporator tube 1 is buried in the roadside subgrade, and the condenser cavity tube 4 is buried in the asphalt layer of the road surface with the fins 8 facing upwards. During the snow melting process, the temperature of the evaporator tube 1 is high, while the temperature of the condenser cavity tube 4 is low. The working liquid 3 in the evaporator tube 1 evaporates from the evaporator tube 1 and rises to the condenser cavity tube 4. It releases heat and condenses on the upper wall of the condenser cavity tube 4 and at the fins 8. Then, it flows back to the evaporator tube 1 by gravity, realizing efficient heat transfer. This achieves efficient snow melting while protecting the environment, thus avoiding the problems of low snow removal efficiency and damage to the environment and road surface.

[0027] Example 2: Based on Example 1, fins 8 are provided to improve the overall snow melting efficiency of the device. The fins 8 are fixedly installed on the outer wall of the condensing cavity tube 4 in a plurality of semi-annular shapes, and each fin 8 has a cavity that communicates with the inner tube of the condensing cavity tube 4. The fins 8 are tilted upward to form an inclination angle of 15°-75° with the outer wall of the condensing cavity tube 4. When the device melts snow on the road surface, the working liquid 3 evaporates from the evaporation tube 1 into the condensing cavity tube 4. The fins 8 provided above the condensing cavity tube 4 increase the contact area between the device and the road surface. Since the heat transfer rate is proportional to the heat exchange area, the larger area allows more heat in the device to be dissipated to the road surface, thereby making the device more efficient at melting snow on the road surface.

[0028] The insulated cavity tube 7 has an overall inverted "L" shape. The interior of the insulated cavity tube 7 is filled with an insulation layer 6. The angle at the bend of the insulated cavity tube 7 is 90°-95°, so that the condensing cavity tube 4 connected to one end of the insulated cavity tube 7 is in a state where one side is higher than the other. The inner wall of the insulated cavity tube 7 is provided with a passivation film 9, and the outer wall of the insulated cavity tube 7 is covered with a protective tube 5. The angle at the bend of the insulated cavity tube 7 is 90°-95°, so that the condensing cavity tube 4 is in a state where one side is higher than the other. This structure allows the working fluid 3 generated by the condensation of the condensing cavity tube 4 to flow back to the evaporation tube 1 more quickly, thereby improving the efficiency of the device in melting snow on the road surface.

[0029] Example 3: Based on Example 2, a silicon carbide tube 2 is provided to extend the service life of the device. Several grooves are formed on the surface of the silicon carbide tube 2. A waterproof coating 11 is provided between the silicon carbide tube 2 and the evaporator tube 1. A fiberglass cloth 12 is attached to the outside of the silicon carbide tube 2, and a waterproof outer coating 13 is provided on the outside of the fiberglass cloth 12. The silicon carbide tube 2 is fitted over the outside of the evaporator tube 1. The silicon carbide tube 2 not only has good thermal conductivity but also corrosion resistance, thus preventing the device from being corroded by prolonged exposure to soil. Furthermore, the waterproof coating 11 between the silicon carbide tube 2 and the evaporator tube 1, along with the fiberglass cloth 12 and the waterproof outer coating 13 on the outside of the silicon carbide tube 2, ensure the long-term use of the evaporator tube 1, thereby improving the overall service life of the device.

[0030] A sealing block 14 is welded to the end of the condensing cavity tube 4 away from the insulating cavity tube 7, and a protective ring 15 is welded to the surface of the weld between the condensing cavity tube 4 and the sealing block 14; a passivation film 9 is provided on the inner wall of the evaporating tube 1, and an insulating cavity tube 7 is welded to the end of the evaporating tube 1 near the condensing cavity tube 4, and a conical block 10 is welded to the other end of the evaporating tube 1; the inside of the device is in a sealed vacuum state, and a protective ring 15 is welded to the outer wall of the weld between the condensing cavity tube 4 and the sealing block 14 to prevent damage to the weld from prolonged use and thus improve the service life of the device.

[0031] Working principle: In actual use, the device has an inverted "L" shape. The evaporator tube 1 is buried in the roadside subgrade, and the condenser cavity tube 4 is buried in the asphalt layer of the road surface with the fins 8 facing upwards. During the snow melting process, the temperature of the evaporator tube 1 is high, while the temperature of the condenser cavity tube 4 is low. The working liquid 3 in the evaporator tube 1 evaporates from the evaporator tube 1 and rises to the condenser cavity tube 4. It releases heat and condenses on the upper wall of the condenser cavity tube 4 and at the position of the fins 8. Then, it flows back to the evaporator tube 1 by gravity, realizing efficient heat transfer. This achieves efficient snow melting while protecting the environment, thus avoiding the problems of low snow removal efficiency and damage to the environment and road surface.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency gravity-type inorganic heat pipe for road snow melting, characterized in that: The high-efficiency gravity-type inorganic heat pipe for road snow melting includes: an evaporator (1), a silicon carbide tube (2) sleeved on the outside of the evaporator (1), and a working fluid (3) filled inside the evaporator (1); A condensing cavity tube (4) is provided with several fins (8) on its surface, and an insulating cavity tube (7) is provided between the condensing cavity tube (4) and the evaporating tube (1).

2. A high-efficiency gravity-type inorganic heat pipe for road snow melting according to claim 1, characterized in that: The inner wall of the evaporator tube (1) is provided with a passivation film (9), and an insulating cavity tube (7) is welded to one end of the evaporator tube (1) near the condensation cavity tube (4), and a conical block (10) is welded to the other end of the evaporator tube (1).

3. A high-efficiency gravity-type inorganic heat pipe for road snow melting according to claim 1, characterized in that: The silicon carbide tube (2) has several grooves on its surface. A waterproof coating (11) is provided between the silicon carbide tube (2) and the evaporation tube (1). A glass fiber cloth (12) is attached to the outside of the silicon carbide tube (2). A waterproof outer coating (13) is provided on the outside of the glass fiber cloth (12).

4. A high-efficiency gravity-type inorganic heat pipe for road snow melting according to claim 1, characterized in that: The heat-insulating cavity tube (7) is in the shape of an inverted "L". The heat-insulating cavity tube (7) is filled with a heat-insulating layer (6). The angle of the heat-insulating cavity tube (7) at the turning point is 90°-95°, so that the condensing cavity tube (4) connected to one end of the heat-insulating cavity tube (7) is in a state where one side is higher than the other. The inner wall of the heat-insulating cavity tube (7) is provided with a passivation film (9), and the outer wall of the heat-insulating cavity tube (7) is covered with a protective tube (5).

5. A high-efficiency gravity-type inorganic heat pipe for road snow melting according to claim 1, characterized in that: A sealing block (14) is welded to the end of the condensing cavity tube (4) away from the insulating cavity tube (7), and a protective ring (15) is welded to the surface of the weld between the condensing cavity tube (4) and the sealing block (14).

6. A high-efficiency gravity-type inorganic heat pipe for road snow melting according to claim 1, characterized in that: The fins (8) are fixedly installed on the outer wall of the condensing cavity tube (4) in a plurality of semi-ring shapes. Each fin (8) is provided with a cavity that communicates with the inner tube of the condensing cavity tube (4). The fins (8) are tilted upward to form an inclination angle of 15°-75° with the outer wall of the condensing cavity tube (4).

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