Cross-seasonal energy storage buried pipe structure for deep aquifer

Abstract

The utility model relates to the technical field of buried pipes, and particularly discloses a deep aquifer cross-seasonal energy storage buried pipe structure which comprises a first outer pipe, a second outer pipe is arranged on one side of the first outer pipe, the first outer pipe and the second outer pipe are high-strength polyethylene (PE) pipes, a supporting and separating mechanism is arranged between the first outer pipe and the second outer pipe, and the supporting and separating mechanism is connected with the first outer pipe and the second outer pipe. And through the supporting and separating mechanism, the pipeline can be firmer and can preserve heat better. According to the cross-seasonal energy storage buried pipe structure for the deep aquifer, the first outer pipe and the second outer pipe can provide additional protection for the first inner pipe and the second inner pipe which are arranged inside, and the inner supporting ribs provide additional supporting force for the first outer pipe and the second outer pipe; the first outer pipe and the second outer pipe can have better compression resistance and deformation resistance, meanwhile, better heat preservation capacity can be provided for the buried pipe through the heat insulation material, and the probability that the buried pipe is deformed and fractured due to underground changes is reduced.

Description

Technical Field

[0001] This utility model relates to the field of buried pipe technology, specifically to a deep aquifer cross-seasonal energy storage buried pipe structure. Background Technology

[0002] Human life and development are inseparable from the use of energy. As energy resources gradually dwindle, finding alternatives to fossil fuels such as coal and oil has become an urgent and important global goal. Geothermal energy is a clean energy source with huge reserves, and its rational development and utilization are increasingly favored. The deep geothermal technology currently being developed and applied uses groundwater as a cold or heat source, used to regulate temperature and humidity in summer and for heating in winter. To increase the cold or heat source of groundwater, cold or hot water is generally injected into underground aquifers for use. As an important component of underground energy storage, buried pipes are indispensable. When used for underground energy storage, buried pipes need to meet high requirements for compressive strength. However, most existing buried pipes are single-layer structures, which can deform or crack due to underground changes after long-term use, resulting in reduced pipe flow or leakage. Utility Model Content

[0003] The purpose of this invention is to provide a deep aquifer cross-seasonal energy storage buried pipe structure to solve the problem mentioned in the background art that a single layer of buried pipe cannot have a large resistance to deformation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a deep aquifer cross-seasonal energy storage buried pipe structure, including a first outer pipe, a second outer pipe provided on one side of the first outer pipe, and the second outer pipe having the same diameter as the first outer pipe, the first outer pipe and the second outer pipe being high-strength polyethylene (PE) pipes, and the second outer pipe being concentrically designed with the first outer pipe, and a support and separation mechanism being provided between the first outer pipe and the second outer pipe, the support and separation mechanism making the pipe more robust and the pipe more heat-insulating.

[0005] Preferably, the support and separation mechanism includes: a first inner tube, which is located inside the first outer tube and is concentric with the first outer tube; an internal support rib is fixedly provided between the first inner tube and the first outer tube; a second inner tube is provided inside the second outer tube, which is concentric with the second outer tube; and internal support ribs are evenly fixedly installed between the second outer tube and the second inner tube.

[0006] By adopting the above technical solution, the first outer pipe and the second outer pipe can be conveniently installed to protect the first inner pipe and the second inner pipe inside. The installation and support of the internal support ribs can give the first outer pipe and the second outer pipe greater resistance to deformation, reduce the deformation or rupture of the buried pipe caused by underground changes, and improve the service life of the pipeline.

[0007] Preferably, the space between the first inner tube and the first outer tube is filled with heat insulation material, and the space between the second inner tube and the second outer tube is filled with heat insulation material.

[0008] By adopting the above technical solution, by setting the insulation material between the first outer pipe and the first inner pipe and the second outer pipe and the second inner pipe, the first outer pipe, the second outer pipe, the first inner pipe and the second inner pipe can be more stable, and the heat preservation capacity can be improved, reducing the heat loss caused by the extraction of underground heat source, and making the first outer pipe, the second outer pipe, the first inner pipe and the second inner pipe more stable.

[0009] Preferably, mounting flanges are fixedly provided on both ends of the first outer tube and the second outer tube, and through holes are uniformly opened on the outer surface of the mounting flanges. A mating extrusion mechanism is provided between the mounting flanges, so that the first outer tube and the second outer tube can be mated together and the separation leakage caused by high temperature can be reduced.

[0010] By adopting the above technical solution, the first outer pipe and the first inner pipe can be connected to each other by installing flanges, so that the first outer pipe and the first inner pipe can be stably connected. This prevents the first outer pipe and the first inner pipe from separating and falling off due to the heat and pressure generated by the underground heat source during use, thereby reducing the probability of water leakage between the first outer pipe and the first inner pipe.

[0011] Preferably, the mating extrusion mechanism includes: fixing bolts, which pass through through holes on the outer surface of the mounting flange, and a protruding ring is fixedly installed on the outer surface of the mounting flange, and the protruding ring and the mounting flange are concentrically designed. A rubber sealing ring is placed against the outer surface of the protruding ring, and the rubber sealing ring and the protruding ring are concentrically designed.

[0012] Using the above technical solution, the mounting flanges can be connected to each other by fixing bolts, and when the first outer pipe and the second outer pipe are lowered to the ground, the protrusion of the mounting flange can provide additional gripping points, reducing the risk of the first outer pipe and the second outer pipe slipping out of your hands and falling.

[0013] Preferably, an internal straight-through is provided between the first outer pipe and the second outer pipe, and the outer surface of the internal straight-through is respectively attached to the outer surface of the first outer pipe and the second outer pipe. An insertion sealing mechanism is provided between the internal straight-through, the first outer pipe and the second outer pipe, so that the pipes can be stably connected to each other through the insertion sealing mechanism.

[0014] By adopting the above technical solution, the first inner pipe and the second inner pipe can be stably connected to each other through the internal straight connection, and the clamping force generated during the installation of the mounting flange can make the protruding ring on the outer surface of the mounting flange fit tightly with the rubber sealing ring to form a seal, thereby reducing the probability of pipeline leakage.

[0015] Preferably, the insertion sealing mechanism includes: an intermediate positioning ring, which is fixedly installed on the outer surface of the inner straight passage, and guide grooves are respectively opened at both ends of the inner straight passage. The outer surface of the inner straight passage is in contact with the outer surface of the rubber sealing ring. Sealing rings are respectively embedded on the outer surfaces of the two sides of the inner straight passage, and the outer surfaces of the sealing rings are respectively in contact with the outer surfaces of the first outer tube and the second outer tube.

[0016] By adopting the above technical solution, the guide groove makes it easier for the inner straight connector to be inserted into the first inner tube and the second inner tube, and the intermediate positioning ring prevents the inner straight connector from slipping and falling into the first inner tube and the second inner tube. The sealing ring on the outer surface of the inner straight connector further improves the sealing performance after the first inner tube and the second inner tube are inserted.

[0017] Compared with existing technologies, the beneficial effects of this utility model are: the deep aquifer cross-seasonal buried pipe structure:

[0018] 1. The first and second outer pipes can provide additional protection for the first and second inner pipes, and the internal support ribs can provide additional support for the first and second outer pipes, enabling the first and second outer pipes to have better resistance to pressure and deformation. At the same time, the thermal insulation material can provide better insulation for the buried pipe, reducing the probability of deformation and cracking of the buried pipe due to underground changes.

[0019] 2. The mounting flanges at both ends of the first and second outer pipes allow the mounting flanges to be connected to each other with fixing bolts, so that the first and second outer pipes can be fixed and connected to each other without the use of adhesive. This prevents the first and second outer pipes from separating due to the high temperature medium passing through them during the use of the buried pipe, reducing the probability of pipeline leakage and disconnection.

[0020] 3. The guide groove on the outer surface of the inner straight connector allows for easier insertion into the first and second inner tubes. The intermediate positioning ring ensures that the inner straight connector will not change position after installation. Meanwhile, the rubber sealing ring and the clamping force between the sealing ring and the mounting flange ensure a stable connection between the first and second inner tubes, improving the sealing performance and reducing the chance of leakage. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the first outer tube and the second outer tube of this utility model;

[0022] Figure 2 This is a three-dimensional exploded view of the internal through-hole and intermediate positioning ring of this utility model;

[0023] Figure 3 This is a three-dimensional cross-sectional view of the first outer tube and the first inner tube of this utility model;

[0024] Figure 4 This is a three-dimensional cross-sectional view of the internal straight-through and rubber sealing ring of this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the thermal insulation material and mounting flange of this utility model;

[0026] Figure 6 This is a three-dimensional cross-sectional view of the internal support ribs and the internal straight-through structure of this utility model.

[0027] In the diagram: 1. First outer tube; 2. Second outer tube; 3. First inner tube; 4. Second inner tube; 5. Internal support rib; 6. Thermal insulation material; 7. Mounting flange; 8. Fixing bolt; 9. Protruding ring; 10. Internal straight-through; 11. Intermediate positioning ring; 12. Rubber sealing ring; 13. Sealing ring; 14. Guide groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-6This utility model provides a technical solution: a deep aquifer cross-seasonal energy storage buried pipe structure, including a first outer pipe 1, a second outer pipe 2 is provided on one side of the first outer pipe 1, and the second outer pipe 2 has the same diameter as the first outer pipe 1. The first outer pipe 1 and the second outer pipe 2 are high-strength polyethylene (PE) pipes, and the second outer pipe 2 and the first outer pipe 1 are concentrically designed. A support and separation mechanism is provided between the first outer pipe 1 and the second outer pipe 2. The support and separation mechanism makes the pipe more robust and allows the pipe to be better insulated.

[0030] During installation, the first outer tube 1 needs to be inserted into the hole first, and then the second outer tube 2 is connected to the first outer tube 1.

[0031] The supporting and separating mechanism includes: a first inner tube 3, which is located inside the first outer tube 1 and is concentric with the first outer tube 1; an internal supporting rib 5 is fixedly provided between the first inner tube 3 and the first outer tube 1; a second inner tube 4 is provided inside the second outer tube 2, which is concentric with the second outer tube 2; and internal supporting ribs 5 are evenly fixedly installed between the second outer tube 2 and the second inner tube 4.

[0032] The first outer pipe 1 and the second outer pipe 2 can protect the first inner pipe 3 and the second inner pipe 4, reducing the damage to the first inner pipe 3 and the second inner pipe 4 caused by underground pressure. At the same time, the internal support ribs 5 set between the first outer pipe 1 and the first inner pipe 3, and between the second outer pipe 2 and the second inner pipe 4 can improve the support force between the first outer pipe 1, the second outer pipe 2, the first inner pipe 3, and the second inner pipe 4, so that the buried pipe has stronger resistance to compression, reduces deformation and damage caused by underground changes, and improves the durability of the buried pipe.

[0033] The space between the first inner tube 3 and the first outer tube 1 is filled with heat insulation material 6, and the space between the second inner tube 4 and the second outer tube 2 is filled with heat insulation material 6.

[0034] The insulation material 6 filled between the first inner pipe 3 and the first outer pipe 1, and between the second outer pipe 2 and the second inner pipe 4, can improve the insulation capacity of the buried pipe, reduce the heat or cold loss generated when the buried pipe extracts underground heat or cold sources, and provide additional support through the insulation material 6.

[0035] Mounting flanges 7 are fixedly installed on both ends of the first outer tube 1 and the second outer tube 2, and through holes are evenly opened on the outer surface of the mounting flanges 7. A mating extrusion mechanism is provided between the mounting flanges 7. The mating extrusion mechanism enables the first outer tube 1 and the second outer tube 2 to be mated together and reduces separation leakage caused by high temperature.

[0036] When installing the buried pipeline, simply connect the mounting flange 7 and fix it with the fixing bolts 8 to allow the first outer pipe 1 and the second outer pipe 2 to be connected to each other. This eliminates the need for adhesive when connecting the first outer pipe 1 and the second outer pipe 2, increasing the strength of the connection and preventing the buried pipe from separating due to the high temperature during medium extraction, thus reducing the probability of separation between the first outer pipe 1 and the second outer pipe 2.

[0037] The mating extrusion mechanism includes: fixing bolts 8, which pass through through holes on the outer surface of mounting flange 7, and a protruding ring 9 is fixedly installed on the outer surface of mounting flange 7. The protruding ring 9 and mounting flange 7 are concentrically designed. A rubber sealing ring 12 is placed on the outer surface of the protruding ring 9, and the rubber sealing ring 12 and protruding ring 9 are concentrically designed.

[0038] The protruding ring 9 on the outer surface of the mounting flange 7 allows the mounting flanges 7 to be connected to each other, and the protruding ring 9 can fit with the rubber sealing ring 12, so that there will be no leakage between the first outer pipe 1 and the second outer pipe 2.

[0039] An internal straight connector 10 is provided between the first outer pipe 1 and the second outer pipe 2, and the outer surface of the internal straight connector 10 is in contact with the outer surfaces of the first outer pipe 1 and the second outer pipe 2 respectively. An insertion sealing mechanism is provided between the internal straight connector 10, the first outer pipe 1 and the second outer pipe 2, so that the pipes can be stably connected to each other through the insertion sealing mechanism.

[0040] The inner straight-through 10 allows the first inner tube 3 and the second inner tube 4 to be tightly connected to each other. The placement of the intermediate positioning ring 11 and the rubber sealing ring 12, along with the clamping between the mounting flange 7, enables the first inner tube 3 and the second inner tube 4 to be connected to each other, reducing the probability of leakage between the first inner tube 3 and the second inner tube 4.

[0041] The insertion sealing mechanism includes: an intermediate positioning ring 11, which is fixedly installed on the outer surface of the inner straight tube 10, and guide grooves 14 are respectively opened at both ends of the inner straight tube 10. The outer surface of the inner straight tube 10 is in contact with the outer surface of the rubber sealing ring 12. Sealing rings 13 are respectively embedded on the outer surfaces of the two sides of the inner straight tube 10, and the outer surfaces of the sealing rings 13 are respectively in contact with the outer surfaces of the first outer tube 1 and the second outer tube 2.

[0042] The guide groove 14 allows the inner straight connector 10 to be inserted more easily into the first inner tube 3 and the second inner tube 4 during installation. The sealing ring 13 provided on the outer surface of the first outer tube 1 and the second outer tube 2 can further improve the sealing performance between the first inner tube 3, the second inner tube 4 and the inner straight connector 10, and reduce the probability of leakage between the first inner tube 3 and the second inner tube 4.

[0043] 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 deep aquifer cross-seasonal energy storage buried pipe structure, comprising a first outer pipe (1), a second outer pipe (2) disposed on one side of the first outer pipe (1), the second outer pipe (2) having the same diameter as the first outer pipe (1), the first outer pipe (1) and the second outer pipe (2) being high-strength polyethylene (PE) pipes, and the second outer pipe (2) being concentrically designed with the first outer pipe (1), characterized in that: A support and separation mechanism is provided between the first outer pipe (1) and the second outer pipe (2). The support and separation mechanism makes the pipe more robust and more heat-insulating. The support and separation mechanism includes: a first inner pipe (3), which is located inside the first outer pipe (1) and the first outer pipe (1) and the first inner pipe (3) are concentrically designed. An internal support rib (5) is fixedly provided between the first inner pipe (3) and the first outer pipe (1). A second inner pipe (4) is provided inside the second outer pipe (2), and the second inner pipe (4) and the second outer pipe (2) are concentrically designed. An internal support rib (5) is evenly fixedly installed between the second outer pipe (2) and the second inner pipe (4).

2. The deep aquifer cross-seasonal buried pipe structure according to claim 1, characterized in that: The first inner tube (3) and the first outer tube (1) are filled with heat insulation material (6), and the second inner tube (4) and the second outer tube (2) are filled with heat insulation material (6).

3. The deep aquifer cross-seasonal buried pipe structure according to claim 1, characterized in that: The first outer tube (1) and the second outer tube (2) are respectively fixedly provided with mounting flanges (7) on their outer surfaces, and the outer surfaces of the mounting flanges (7) are uniformly provided with through holes. A docking extrusion mechanism is provided between the mounting flanges (7). The docking extrusion mechanism enables the first outer tube (1) and the second outer tube (2) to dock with each other and reduces separation leakage caused by high temperature.

4. The deep aquifer cross-seasonal buried pipe structure according to claim 3, characterized in that: The docking extrusion mechanism includes: a fixing bolt (8), which passes through the through hole on the outer surface of the mounting flange (7), and a protruding ring (9) is fixedly installed on the outer surface of the mounting flange (7), and the protruding ring (9) and the mounting flange (7) are concentrically designed. A rubber sealing ring (12) is placed on the outer surface of the protruding ring (9), and the rubber sealing ring (12) and the protruding ring (9) are concentrically designed.

5. The deep aquifer cross-seasonal buried pipe structure according to claim 1, characterized in that: An internal straight-through (10) is provided between the first outer tube (1) and the second outer tube (2), and the outer surface of the internal straight-through (10) is in contact with the outer surfaces of the first outer tube (1) and the second outer tube (2), respectively. An insertion sealing mechanism is provided between the internal straight-through (10), the first outer tube (1) and the second outer tube (2), and the pipes can be stably connected to each other through the insertion sealing mechanism.

6. The deep aquifer cross-seasonal buried pipe structure according to claim 5, characterized in that: The insertion sealing mechanism includes: an intermediate positioning ring (11), which is fixedly installed on the outer surface of the inner straight tube (10), and guide grooves (14) are respectively opened at both ends of the inner straight tube (10). The outer surface of the inner straight tube (10) is in contact with the outer surface of the rubber sealing ring (12). Sealing rings (13) are respectively inlaid on the outer surfaces of the two sides of the inner straight tube (10), and the outer surfaces of the sealing rings (13) are respectively in contact with the outer surfaces of the first outer tube (1) and the second outer tube (2).

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