Impact-resistant high-hardness middle-deep layer buried pipe heat exchanger

Abstract

The utility model relates to the technical field of middle-deep layer buried pipe heat exchangers, in particular to an impact-resistant high-hardness middle-deep layer buried pipe heat exchanger which comprises a buried pipe heat exchanger body, and the buried pipe heat exchanger body comprises a shell, a carbon steel layer and a polyimide material layer. Annular fixing frames are connected to the left side and the right side of the exterior of the ground heat exchanger body in a sleeving mode correspondingly, trapezoidal anti-impact supports are fixedly connected to the exteriors of the two annular fixing frames correspondingly, sliding grooves are formed in the left sides and the right sides of the interiors of the two trapezoidal anti-impact supports correspondingly, and guide rods are fixedly connected to the interiors of the four sliding grooves correspondingly. The exteriors of the four guide rods are slidably sleeved with guide blocks, an anti-impact plate is fixedly connected among the four guide blocks, and the lower end face of the anti-impact plate is fixedly connected with a plurality of elastic buffer rods which are uniformly arranged; according to the buried pipe heat exchanger, the material of an existing heat exchanger shell is improved, the hardness of the heat exchanger shell is improved, meanwhile, the impact resistance of the whole heat exchanger shell is enhanced through the buffer structure, and therefore the service life of buried pipe heat exchange is greatly prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of middle-deep buried pipe heat exchanger, especially to the high hardness middle-deep buried pipe heat exchanger of impact resistance. BACKGROUND

[0002] The deep geothermal energy non-interference clean heating technology has the characteristics of continuous and stable heat extraction, fast ground temperature recovery and low environmental impact, and is suitable for being used as a clean heating heat source for buildings. The technology mainly adopts a coaxial sleeve pipe process, and the drilling depth is generally more than 2000m. However, the technology can only be used for heating, and the cost is relatively high. The drilling depth of the middle-deep buried pipe heat exchanger is generally between 1000m and 3000m. Therefore, it is more suitable to use the sleeve pipe buried pipe heat exchanger to exploit the middle-deep geothermal energy.

[0003] The utility model discloses a kind of middle-deep sleeve pipe buried pipe heat exchangers, including inner tube body, the outer surface of the inner tube body is fixedly connected with steel pipe body, the left end and right end of the inner tube body are fixedly connected with sealing device, the right end middle part of the sealing device of right side is fixedly connected with main body device, the right end rear of the sealing device of right side is fixedly connected with water inlet pipe, the outer surface left part and outer surface right part of the inner tube body are movably connected with upper frame, the lower end of two The upper frame is movably connected with fixed device, the upper end front and upper end rear of two The upper frame are fixedly connected with fixed bolt;The utility model is provided with sealing device on the whole device, the left end and right end of steel pipe body are fixedly installed sealing cover, and are fixed with several fixed caps, sealing cover is fixedly installed sealing pad, the sealing property between sealing cover and steel pipe body is enhanced, and use performance is enhanced;Fixed device is arranged on the whole device, the lower end of two The upper frame is fixedly installed in the upper end of two The lower frame by fixed bolt, so that the outer tube of steel pipe body is fixed, the bending strength of steel pipe body is enhanced, the lower end of lower frame is fixedly installed fixed plate, and several earth-inserting poles are fixedly installed in the lower end of fixed plate, several earth-inserting poles are designed in conical structure, which is convenient for inserting into soil, avoids deviation of steel pipe body, and has high stability.

[0004] However, the existing buried pipe heat exchanger does not have impact resistance when encountering soil collapse or natural impact force, which causes damage to the outer part of the heat exchanger under a large impact force, thereby affecting the use of the heat exchanger. The cost is high, and a large amount of funds is needed for replacement. In addition, the shell hardness is low, and it cannot resist a large impact force, which has certain disadvantages. UTILITY MODEL CONTENTS

[0005] In order to overcome the problem of low hardness of the shell of the existing buried pipe heat exchanger, which does not have impact resistance, affects its service life, and needs to spend a large amount of cost for replacement.

[0006] The technical solution of this utility model is as follows: a high-hardness, impact-resistant, medium-deep buried pipe heat exchanger, comprising a buried pipe heat exchanger body, which includes an outer shell, a carbon steel layer, and a polyimide material layer. Annular fixing frames are fitted onto the left and right sides of the outer surface of the buried pipe heat exchanger body. Trapezoidal impact-resistant supports are fixedly connected to the outside of the two annular fixing frames. Slide grooves are opened on the left and right sides inside the two trapezoidal impact-resistant supports. Guide rods are fixedly connected inside the four slide grooves. Guide blocks are slidably fitted onto the outside of the four guide rods. Impact-resistant plates are fixedly connected between the four guide blocks. Multiple evenly arranged elastic buffer rods are fixedly connected to the lower end face of the impact-resistant plate. Second buffer springs are fitted onto the outside of the elastic buffer rods. Arc-shaped buffer pressure plates are fixedly connected to the lower end face of the elastic buffer rods.

[0007] Preferably, a trapezoidal impact-resistant bracket that matches the annular fixing frame is installed on the outside of the buried pipe heat exchanger body. When an impact force is generated, the space left between the trapezoidal impact-resistant bracket and the buried pipe heat exchanger body is sufficient to achieve the impact resistance effect. At the same time, the arc-shaped buffer plate contacts the buried pipe heat exchanger body, greatly enhancing the impact resistance. The carbon steel material inside the shell enhances the hardness of the buried pipe heat exchanger body shell, while the polyimide material layer also has high strength and impact resistance.

[0008] Preferably, the inner walls of both annular fixing frames are provided with multiple evenly arranged first buffer springs.

[0009] Preferably, the inner walls of both trapezoidal impact-resistant supports are fixedly connected with buffer pads.

[0010] Preferably, a sealing cover is provided on one side of the buried pipe heat exchanger body, and the sealing cover is connected to the buried pipe heat exchanger body through a flange connection plate. A water inlet pipe is fixedly connected to one side of the sealing cover.

[0011] Preferably, the lower end faces of the two trapezoidal impact-resistant supports are fixedly connected with multiple uniformly arranged fixed cones.

[0012] Preferably, a carbon steel layer is bonded to one side of the outer shell, and a polyimide material layer is bonded to one side of the carbon steel layer.

[0013] Preferably, the outer shell is connected to the carbon steel layer by an adhesive layer, and the carbon steel layer is connected to the polyimide material layer by an adhesive layer.

[0014] The beneficial effects of this utility model are:

[0015] 1. This impact-resistant, high-hardness, medium-deep buried pipe heat exchanger features an annular fixing frame fitted onto the outside of the buried pipe heat exchanger body. Multiple first buffer springs inside the fixing frame contact the outer wall of the buried pipe heat exchanger body. Through the frame structure of the trapezoidal impact-resistant support, when an impact occurs, the space between the trapezoidal impact-resistant support and the buried pipe heat exchanger body is sufficient to buffer the impact force. At the same time, the elastic buffer rod below the impact-resistant plate, together with the second buffer spring and the arc-shaped buffer pressure plate, reduces the impact force and strengthens the protection of the buried pipe heat exchanger body.

[0016] 2. This impact-resistant, high-hardness, medium-deep buried pipe heat exchanger has a carbon steel layer bonded to the inside of the outer shell through an adhesive layer, which increases the hardness of the buried pipe heat exchanger body. At the same time, the polyimide material layer also has high strength and impact resistance, thereby extending the service life of the buried pipe heat exchanger body. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural representation of the impact-resistant structure of the medium-deep buried pipe heat exchanger of this utility model.

[0018] Figure 2 This utility model is shown. Figure 1 A magnified schematic diagram of the three-dimensional structure at point A;

[0019] Figure 3 The diagram shown is a three-dimensional structural representation of the impact-resistant structure of the medium-deep buried pipe heat exchanger of this utility model.

[0020] Figure 4 This utility model is shown. Figure 3 A magnified schematic diagram of the three-dimensional structure at point B;

[0021] Figure 5 The diagram shown is a cross-sectional view of the outer shell material of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Buried pipe heat exchanger body; 2. Trapezoidal impact-resistant bracket; 3. Sealing cover; 4. Inlet pipe; 5. Buffer pad; 6. Fixing cone; 7. Annular fixing frame; 8. Impact-resistant plate; 9. Slide groove; 10. Guide block; 11. Guide rod; 12. First buffer spring; 13. Elastic buffer rod; 14. Arc-shaped buffer pressure plate; 15. Outer shell; 16. Adhesive layer; 17. Carbon steel layer; 18. Polyimide material layer; 19. Second buffer spring. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figures 1-5This utility model provides an embodiment of an impact-resistant, high-hardness, medium-deep buried pipe heat exchanger, comprising a buried pipe heat exchanger body 1. The buried pipe heat exchanger body 1 includes an outer shell 15, a carbon steel layer 17, and a polyimide material layer 18. Annular fixing frames 7 are fitted onto the left and right sides of the outer surface of the buried pipe heat exchanger body 1. Trapezoidal impact-resistant supports 2 are fixedly connected to the outside of each of the two annular fixing frames 7. Sliding grooves 9 are provided on the left and right sides inside each of the two trapezoidal impact-resistant supports 2. Guide rods 11 are fixedly connected to the inside of each of the four sliding grooves 9. Guide blocks 10 are slidably fitted onto the outside of each of the four guide rods 11. Impact-resistant plates 8 are fixedly connected between the four guide blocks 10. Multiple evenly arranged elastic buffer rods 13 are fixedly connected to the lower end face of the impact-resistant plate 8. Second buffer springs 19 are fitted onto the outside of each elastic buffer rod 13. Arc-shaped buffer pressure plates 14 are fixedly connected to the lower end face of each elastic buffer rod 13.

[0025] Please see Figures 1-3 In this embodiment, the inner walls of the two annular fixing frames 7 are each provided with a plurality of uniformly arranged first buffer springs 12, which serve as buffers. The inner walls of the two trapezoidal impact-resistant supports 2 are each fixedly connected with buffer pads 5, which enhance the buffering effect. A sealing cover 3 is provided on one side of the buried pipe heat exchanger body 1. The sealing cover 3 is connected to the buried pipe heat exchanger body 1 through a flange connecting plate. A water inlet pipe 4 is fixedly connected to one side of the sealing cover 3. Before the buried pipe heat exchanger body 1 is buried underground, the annular fixing frame 7 is sleeved and installed on the outside of the buried pipe heat exchanger body 1. The plurality of first buffer springs 12 inside the annular fixing frame 7 contact the outer wall of the buried pipe heat exchanger body 1, which first serves as a buffer. At the same time, the trapezoidal impact-resistant supports 2 fixed on the outside of the annular fixing frame 7 also serve as a support. Through the frame structure of the trapezoidal impact-resistant supports 2, when an impact occurs, the space between the trapezoidal impact-resistant supports 2 and the buried pipe heat exchanger body 1 is sufficient to buffer the impact.

[0026] Please see Figures 1-5In this embodiment, multiple uniformly arranged fixing cones 6 are fixedly connected to the lower end faces of both trapezoidal impact-resistant supports 2. The fixing cones 6 are used to reinforce the body 1 of the buried pipe heat exchanger. A carbon steel layer 17 is attached to one side of the outer shell 15, and a polyimide material layer 18 is attached to one side of the carbon steel layer 17. The outer shell 15 and the carbon steel layer 17 are connected by an adhesive layer 16, and the carbon steel layer 17 and the polyimide material layer 18 are connected by an adhesive layer 16. The carbon steel layer 17 and the polyimide material layer 18 have... The buried pipe heat exchanger body 1 has high strength and impact resistance. The impact force is reduced by the cooperation of the elastic buffer rod 13 under the impact plate 8, the second buffer spring 19, and the arc-shaped buffer pressure plate 14, and the protection of the body 1 is strengthened. The carbon steel layer 17 is bonded to the inside of the outer shell 15 of the buried pipe heat exchanger body 1 through the adhesive layer 16, thereby improving the hardness of the body 1. At the same time, the polyimide material layer 18 also has high strength and impact resistance, thereby extending the service life of the body 1.

[0027] During operation, before burying the underground pipe heat exchanger body 1, an annular fixing frame 7 is fitted onto the outside of the underground pipe heat exchanger body 1. Multiple first buffer springs 12 inside the annular fixing frame 7 contact the outer wall of the underground pipe heat exchanger body 1, primarily acting as a buffer. Simultaneously, the trapezoidal impact-resistant bracket 2 fixed to the outside of the annular fixing frame 7 also provides support. Through the frame structure of the trapezoidal impact-resistant bracket 2, when an impact force occurs, the impact force is first released through the trapezoidal impact-resistant bracket 2, and then through the space between it and the underground pipe heat exchanger body 1. The space is sufficient to buffer the impact force. At the same time, the elastic buffer rod 13 under the impact-resistant plate 8, together with the second buffer spring 19 and the arc-shaped buffer pressure plate 14, reduces the impact force and strengthens the protection of the buried pipe heat exchanger body 1. The carbon steel layer 17 is glued to the inside of the outer shell 15 of the buried pipe heat exchanger body 1 through the adhesive layer 16, thereby increasing the hardness of the buried pipe heat exchanger body 1. At the same time, the polyimide material layer 18 also has high strength and impact resistance, thereby extending the service life of the buried pipe heat exchanger body 1.

[0028] Through the above steps, by installing an annular fixing frame 7 on the outside of the buried pipe heat exchanger body 1, the multiple first buffer springs 12 inside the annular fixing frame 7 contact the outer wall of the buried pipe heat exchanger body 1, thereby solving the problem that the existing buried pipe heat exchanger has low hardness of the outer shell 15, lacks impact resistance, affects its service life, and requires a lot of cost for replacement.

Claims

1. An impact-resistant, high-hardness, medium-deep buried pipe heat exchanger, comprising a buried pipe heat exchanger body (1), characterized in that: The buried pipe heat exchanger body (1) includes an outer shell (15), a carbon steel layer (17) and a polyimide material layer (18). The left and right sides of the buried pipe heat exchanger body (1) are fitted with annular fixing frames (7). The two annular fixing frames (7) are fixedly connected to the outside of the two annular fixing frames (7). The left and right sides of the two trapezoidal anti-impact brackets (2) are provided with sliding grooves (9). The inside of the four sliding grooves (9) is fixedly connected with guide rods (11). The outside of the four guide rods (11) is slidably fitted with guide blocks (10). The four guide blocks (10) are fixedly connected with anti-impact plates (8). The lower end face of the anti-impact plate (8) is fixedly connected with multiple evenly arranged elastic buffer rods (13). The outside of the elastic buffer rods (13) is fitted with a second buffer spring (19). The lower end face of the elastic buffer rods (13) is fixedly connected with an arc-shaped buffer pressure plate (14).

2. The impact-resistant, high-hardness, medium-deep buried pipe heat exchanger according to claim 1, characterized in that: The inner walls of the two annular fixing frames (7) are provided with multiple uniformly arranged first buffer springs (12).

3. The impact-resistant, high-hardness, medium-deep buried pipe heat exchanger according to claim 1, characterized in that: The inner walls of the two trapezoidal impact-resistant supports (2) are fixedly connected with buffer pads (5).

4. The impact-resistant, high-hardness, medium-deep buried pipe heat exchanger according to claim 1, characterized in that: A sealing cover (3) is provided on one side of the buried pipe heat exchanger body (1). The sealing cover (3) is connected to the buried pipe heat exchanger body (1) through a flange connection plate. A water inlet pipe (4) is fixedly connected to one side of the sealing cover (3).

5. The impact-resistant, high-hardness, medium-deep buried pipe heat exchanger according to claim 1, characterized in that: The lower end faces of the two trapezoidal impact-resistant supports (2) are fixedly connected with multiple uniformly arranged fixed cones (6).

6. The impact-resistant, high-hardness, medium-deep buried pipe heat exchanger according to claim 1, characterized in that: A carbon steel layer (17) is attached to one side of the outer shell (15), and a polyimide material layer (18) is attached to one side of the carbon steel layer (17).

7. The impact-resistant, high-hardness, medium-deep buried pipe heat exchanger according to claim 6, characterized in that: The outer shell (15) is connected to the carbon steel layer (17) by an adhesive layer (16), and the carbon steel layer (17) is connected to the polyimide material layer (18) by an adhesive layer (16).

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