A shallow geothermal energy collection device

Abstract

The utility model discloses a kind of shallow geothermal energy collection devices, including outer tube, inner tube, end cap, liquid inlet pipe and liquid outlet pipe, the inside of outer tube is equipped with heat exchange tank, the outer wall of outer tube is fixedly connected with the heat exchange fin of uniform distribution, the top of outer tube is equipped with detachably connected end cap, the surface of end cap is fixedly connected with liquid inlet and liquid outlet, the surface of liquid inlet is equipped with plug-in connection liquid inlet pipe, the surface of liquid outlet is connected with liquid outlet pipe, outer tube inside is equipped with plug-in connection inner tube, the side wall of inner tube is fixedly connected with deflector plate.The utility model utilizes outer tube, inner tube, end cap, liquid inlet pipe and liquid outlet pipe to form shallow geothermal energy collection device, it is convenient to carry out collection and utilization to geothermal energy, by being equipped with the heat exchange fin of uniform distribution on the surface of outer tube, improve the heat conduction efficiency of outer tube, by being equipped with spiral distribution deflector plate on the outer wall of inner tube, on the one hand, it is convenient to control the flow path of circulating water, on the other hand, improve the heat exchange capacity between circulating water and outer tube.

Description

Technical Field

[0001] This utility model relates to the field of shallow geothermal technology, specifically to a shallow geothermal energy harvesting device. Background Technology

[0002] Shallow geothermal energy, also known as shallow geothermal energy, is the heat extracted from shallow geothermal water during winter to supply indoor heating. Shallow geothermal water, also known as shallow surface water, is a prerequisite for the utilization of shallow geothermal energy. Typically, water is extracted from below the ground using pumping equipment and sent into pipes laid in the floor of the building, allowing the heat in the shallow surface water to penetrate the ground and enter the room. The equipment used for extracting and transmitting shallow surface water is collectively referred to as shallow geothermal energy collection devices.

[0003] Currently, shallow geothermal energy is typically extracted by exchanging heat between circulating water and groundwater. However, existing extraction devices usually pump groundwater to the surface for heat exchange, resulting in waste of geothermal energy during extraction and affecting extraction efficiency. Therefore, a shallow geothermal energy extraction device is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a shallow geothermal energy harvesting device that solves the problem of low heat exchange efficiency when extracting groundwater to the surface during geothermal energy harvesting. This invention utilizes an outer cylinder, an inner cylinder, end caps, an inlet pipe, and an outlet pipe to form a shallow geothermal energy harvesting device, facilitating the harvesting and utilization of geothermal energy. By providing uniformly distributed heat exchange fins on the surface of the outer cylinder, the heat conduction efficiency of the outer cylinder is improved. By providing spirally distributed guide plates on the outer wall of the inner cylinder, the flow path of the circulating water is easily controlled, and the heat exchange capacity between the circulating water and the outer cylinder is improved, thereby increasing the harvesting efficiency of geothermal energy.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a shallow geothermal energy harvesting device, comprising an outer cylinder, an inner cylinder, an end cap, an inlet pipe, and an outlet pipe. The outer cylinder has a heat exchange tank inside, and uniformly distributed heat exchange fins are fixedly connected to the outer wall of the outer cylinder. The top of the outer cylinder has a detachably connected end cap, and an inlet and an outlet are fixedly connected to the surface of the end cap. An inlet pipe is inserted into the surface of the inlet, and an outlet pipe is connected to the surface of the outlet. The outer cylinder has an inserted inner cylinder inside, and the top of the inner cylinder is fixedly connected to the lower surface of the end cap. A guide plate is fixedly connected to the side wall of the inner cylinder, and the guide plate is clearance-fitted to the outer cylinder.

[0008] As an improvement to the above technical solution, the guide plate is spirally distributed, and a sealing groove is formed on the outer wall of the guide plate, with a sealing strip embedded inside the sealing groove.

[0009] As an improvement to the above technical solution, a flange is fixedly connected to the top of the outer cylinder, and annular mounting holes are provided at the edge of the flange.

[0010] As an improvement to the above technical solution, the surface of the end cap is provided with fixing bolts distributed corresponding to the mounting holes, and a sealing gasket is fixedly connected to the lower surface of the end cap.

[0011] As an improvement to the above technical solution, the liquid inlet is located at the center of the end cap, and the liquid outlet is located on the side wall of the liquid inlet.

[0012] As an improvement to the above technical solution, a lifting lug is fixedly connected to the upper surface of the end cap, and the lifting lug is symmetrically distributed at the edge of the end cap.

[0013] (III) Beneficial Effects

[0014] This invention provides a shallow geothermal energy harvesting device. It has the following beneficial effects:

[0015] This utility model utilizes an outer cylinder, an inner cylinder, an end cap, an inlet pipe, and an outlet pipe to form a shallow geothermal energy collection device, which facilitates the collection and utilization of geothermal energy. By providing uniformly distributed heat exchange fins on the surface of the outer cylinder, the heat conduction efficiency of the outer cylinder is improved. By providing spirally distributed guide plates on the outer wall of the inner cylinder, the flow path of the circulating water is easily controlled, and the heat exchange capacity between the circulating water and the outer cylinder is improved, thereby increasing the geothermal energy collection efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the shallow geothermal energy harvesting device of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the cross-section of the outer cylinder and the inner cylinder of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the end cap of this utility model.

[0019] In the diagram: Outer cylinder-1, Inner cylinder-2, End cap-3, Inlet pipe-4, Outlet pipe-5, Heat exchange tank-6, Heat exchange fins-7, Inlet port-8, Outlet port-9, Guide plate-10, Sealing groove-11, Sealing strip-12, Flange-13, Mounting hole-14, Fixing bolt-15, Sealing gasket-16, Lifting lug-17. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a shallow geothermal energy harvesting device, including an outer cylinder 1, an inner cylinder 2, an end cap 3, an inlet pipe 4, and an outlet pipe 5. The outer cylinder 1 is provided with a heat exchange tank 6 inside. The outer wall of the outer cylinder 1 is fixedly connected with uniformly distributed heat exchange fins 7. The top of the outer cylinder 1 is provided with a detachably connected end cap 3. The surface of the end cap 3 is fixedly connected with an inlet port 8 and an outlet port 9. The surface of the inlet port 8 is provided with an inlet pipe 4 that is inserted into it. The surface of the outlet port 9 is connected with an outlet pipe 5. The inner cylinder 2 is provided inside the outer cylinder 1 that is inserted into it. The top of the inner cylinder 2 is fixedly connected to the lower surface of the end cap 3. The side wall of the inner cylinder 2 is fixedly connected with a guide plate 10. The guide plate 10 is connected to the outer cylinder 1 with a clearance fit.

[0022] Further improvements include a spiral-shaped guide plate 10 with a sealing groove 11 on its outer wall and a sealing strip 12 embedded inside the sealing groove 11. By using a spiral-shaped guide plate 10 in conjunction with the sealing strip 12 on the outer wall, the path of the water flow can be easily guided and controlled, thereby improving the heat exchange efficiency between the guide plate 10 and the outer cylinder 1.

[0023] In a further improvement, a flange 13 is fixedly connected to the top of the outer cylinder 1, and annularly distributed mounting holes 14 are provided at the edge of the flange 13. By providing a flange 13 with mounting holes 14 on the top of the outer cylinder 1, it is convenient to install it in conjunction with the end cover 3.

[0024] Further improvements include fixing bolts 15 distributed on the surface of the end cap 3 corresponding to the mounting holes 14, and a sealing gasket 16 fixedly connected to the lower surface of the end cap 3. By providing fixing bolts 15 on the surface of the end cap 3, it is convenient to assemble and disassemble the end cap 3 and the outer cylinder 1. By providing a sealing gasket 16 on the lower surface of the end cap 3, the sealing performance between the end cap 3 and the outer cylinder 1 is improved, preventing groundwater from seeping into the circulating water.

[0025] In a further improvement, the liquid inlet 8 is located at the center of the end cap 3, and the liquid outlet 9 is located on the side wall of the liquid inlet 8. By designing the liquid outlet 9 on the side wall of the liquid inlet 8, it is convenient for the circulating water to circulate fully between the inner cylinder 2 and the outer cylinder 1, thereby improving the heat exchange efficiency of the circulating water.

[0026] Specifically, the upper surface of the end cap 3 is fixedly connected with a lifting lug 17, which is symmetrically distributed at the edge of the end cap 3. By fixing the lifting lug 17 to the surface of the end cap 3, it is convenient to hoist the data acquisition device and improve the ease of construction.

[0027] In use, this utility model uses a hoisting device connected to the lifting lug 17 to facilitate the deployment of the collection device. At the same time, the inlet pipe 4 and the outlet pipe 5 are connected to the inlet port 8 and the outlet port 9 on the surface of the end cap 3, respectively. As the construction process progresses, the connection between the inlet pipe 4 and the outlet pipe 5 is continuously extended. During the process, a circulation pump is used to pump circulating water into the inner cylinder 2 along the inlet pipe. The circulating water flows out along the bottom of the inner cylinder 2 and rotates along the guide plate 10, cooperating with the outer cylinder 1 to collect geothermal energy. The circulating water after heat exchange flows back along the outlet pipe 5, which facilitates the collection of low-lying geothermal energy to the ground for utilization.

[0028] This invention addresses the problem that shallow geothermal energy is typically collected by exchanging heat between circulating water and groundwater. However, existing collection devices usually extract groundwater to the surface for heat exchange, resulting in waste of geothermal energy and affecting collection efficiency. This invention utilizes an outer cylinder 1, an inner cylinder 2, an end cap 3, an inlet pipe 4, and an outlet pipe 5 to form a shallow geothermal energy collection device, facilitating the collection and utilization of geothermal energy. By providing uniformly distributed heat exchange fins 7 on the surface of the outer cylinder 1, the heat conduction efficiency of the outer cylinder 1 is improved. By providing spirally distributed guide plates 10 on the outer wall of the inner cylinder 2, the flow path of the circulating water is easily controlled, and the heat exchange capacity between the circulating water and the outer cylinder 1 is improved, thereby increasing the geothermal energy collection efficiency.

[0029] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A shallow geothermal energy harvesting device, comprising an outer cylinder (1), an inner cylinder (2), an end cap (3), an inlet pipe (4), and an outlet pipe (5), characterized in that: The outer cylinder (1) is provided with a heat exchange tank (6) inside. The outer wall of the outer cylinder (1) is fixedly connected with uniformly distributed heat exchange fins (7). The top of the outer cylinder (1) is provided with a detachable end cap (3). The surface of the end cap (3) is fixedly connected with an inlet (8) and an outlet (9). The surface of the inlet (8) is provided with an inlet pipe (4) that is inserted and connected. The surface of the outlet (9) is connected with an outlet pipe (5). The outer cylinder (1) is provided with an inner cylinder (2) that is inserted and connected. The top of the inner cylinder (2) is fixedly connected to the lower surface of the end cap (3). The side wall of the inner cylinder (2) is fixedly connected with a guide plate (10). The guide plate (10) is connected to the outer cylinder (1) with a clearance fit.

2. The shallow geothermal energy harvesting device according to claim 1, characterized in that: The guide plate (10) is spirally distributed, and a sealing groove (11) is provided on the outer wall of the guide plate (10). A sealing strip (12) is embedded and connected inside the sealing groove (11).

3. The shallow geothermal energy harvesting device according to claim 1, characterized in that: The top of the outer cylinder (1) is fixedly connected to a flange (13), and the flange (13) has annularly distributed mounting holes (14) at its edge.

4. A shallow geothermal energy harvesting device according to claim 1, characterized in that: The surface of the end cap (3) is provided with fixing bolts (15) corresponding to the mounting holes (14), and a sealing gasket (16) is fixedly connected to the lower surface of the end cap (3).

5. A shallow geothermal energy harvesting device according to claim 1, characterized in that: The inlet (8) is located at the center of the end cap (3), and the outlet (9) is located on the side wall of the inlet (8).

6. A shallow geothermal energy harvesting device according to claim 1, characterized in that: The upper surface of the end cap (3) is fixedly connected with a lifting lug (17), which is symmetrically distributed at the edge of the end cap (3).

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