Efficient geothermal energy extraction system

Abstract

The utility model belongs to the technical field of terrestrial heat source application, and particularly relates to an efficient terrestrial heat energy extraction system, which comprises an underground heat exchange system, a heat pump unit and a tail end heat exchange system, a ground source heat exchanger is arranged between the two supporting seats, a tail end heat exchanger is arranged at the tops of the two supporting seats, an electric control cabinet is fixed to the top of the tail end heat exchanger, and a protruding strip is arranged on the upper surface of the tail end heat exchanger along the axis. The mounting table can only slide axially through the convex strips on the surface, and the preliminary stability of the mounting table during butt joint is ensured through the matching of the positioning bolts and the positioning holes, so that the stability of the compressor is conveniently changed at any time, butt joint debugging is facilitated, and the convenience during assembly is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of geothermal energy application, and particularly relates to an efficient geothermal energy extraction system. Background Art

[0002] The geothermal energy extraction system uses electric energy as the auxiliary power and circulating water as the heat exchange carrier. It consists of an underground heat exchange system, a heat pump unit system, and an indoor terminal system. It is an efficient and energy-saving central air-conditioning and floor heating system that can both refrigerate and heat and also provide domestic hot water. The temperature 30 - 130 meters below the ground surface is relatively constant throughout the year, generally between 16 - 20 °C. The ground source heat pump utilizes the characteristics of the underground. By inputting a small amount of electric energy, it maximally utilizes the ground temperature to achieve heat and cold conversion. In winter, the heat underground is extracted and further heat-exchanged by the heat pump to provide heat energy for the indoor, and at the same time, the cold energy is transmitted underground. On the contrary, in summer, the cold energy underground is transmitted indoors to achieve cooling.

[0003] The ground source heat pump unit is the core of the geothermal energy extraction system, which can realize heat and cold exchange and pressurize and heat the water carrier. The indispensable equipment in the ground source heat pump is the compressor. The existing heat pump compressor is fixed on the surface of the heat exchanger tank body by welding. This requires strict measurement of dimensions during assembly. If the dimensions deviate or are misaligned, the pipeline of the compressor cannot be docked, thus affecting the construction progress. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide an efficient geothermal energy extraction system, which can realize that after the preliminary fixation of the compressor, it can be moved to facilitate the docking of pipelines. After the docking and debugging are completed, it can be further strengthened to ensure the stability of the compressor.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-efficiency geothermal energy extraction system includes an underground heat exchange system, a heat pump unit and a terminal heat exchange system, wherein the ground source heat pump unit includes a support base, a mounting platform and a docking tile, a pad is transversely fixed at the bottom of the support base, a ground source heat exchanger is arranged between two of the support bases, a terminal heat exchanger is arranged on the top of the two support bases, an electric control cabinet is fixed on the top of the terminal heat exchanger, a convex strip is arranged on the upper surface of the terminal heat exchanger along the axis, and positioning holes are evenly opened on the surfaces of both sides of the convex strip, and the mounting platform is placed above the terminal heat exchanger. A groove is provided on the inner side of the mounting platform, and the groove slides on the surface of the convex strip. A compression pump is fixed on the top of the mounting platform. Extension strips are symmetrically provided on both sides of the mounting platform, and extension plates A are provided outwardly at the ends of the two extension strips on the same side. The docking tile is placed on the lower surface of the terminal heat exchanger, and the docking tile corresponds to the position of the mounting platform. Extension plates B are symmetrically provided at both ends of the docking tile, and the extension plate B is placed below the extension plate A. A locking bolt passes through the surface of the extension plate A, and the bottom of the locking bolt is screwed onto the surface of the extension plate B.

[0007] Furthermore, a cavity is opened above one end of the groove, and receiving holes are opened on the inner walls on both sides of one end of the groove, and the receiving holes correspond to the positions of the cavity.

[0008] Furthermore, a slider is slidably installed on the inner side of the storage hole, a positioning bolt is provided below the side where the two sliders are close to each other, the end of the positioning bolt is adapted to the internal size of the positioning hole, and an arc-shaped extrusion platform is provided above one side of the slider, and the arc-shaped extrusion platform is placed above the same side of the positioning bolt.

[0009] Furthermore, a spring is arranged inside the receiving hole, and one end of the spring is in contact with a surface of the sliding block facing away from the positioning bolt.

[0010] Furthermore, a knob is rotatably mounted at the center of one side of the upper surface of the mounting platform, an elliptical extrusion wheel is arranged at the bottom of the knob, the elliptical extrusion wheel is placed inside the cavity, and the two arc-shaped extrusion platforms are in contact with the surface of the elliptical extrusion wheel.

[0011] Furthermore, the butt-jointed tiles are glued with protective rubber pads.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the compressor is installed on a sliding mounting platform, the convex strips on the surface can ensure that the mounting platform can only slide axially, and the initial stability of the mounting platform during docking is ensured by the cooperation of the positioning bolts and the positioning holes, so that the stability of the compressor can be changed at any time, docking and debugging are convenient, and the convenience during assembly is improved.

[0013] After assembly and debugging, it can be locked and fixed by the docking tile at the bottom to ensure the stability of the compressor position and prevent loosening due to vibration during operation of the compressor. Brief Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the installation structure of the ground source heat pump of the present utility model;

[0015] Figure 2 It is a three-dimensional structure schematic diagram of the installation and fixation of the compression pump of the present utility model;

[0016] Figure 3 It is a sectional view structure schematic diagram of the installation of the elliptical extrusion wheel of the present utility model;

[0017] Figure 4 For the present utility model Figure 1 Schematic diagram of the enlarged structure of area A;

[0018] Figure 5 For the present utility model Figure 3 Schematic diagram of the enlarged structure of area B.

[0019] In the drawings, the list of components represented by each reference numeral is as follows:

[0020] 1, cushion block; 2, support base; 3, ground source heat exchanger; 4, terminal heat exchanger; 41, rib; 42, positioning hole; 5, electric control cabinet; 6, installation table; 7, compression pump; 8, extension bar; 9, groove; 10, extension plate A; 11, docking tile; 12, extension plate B; 13, locking bolt; 14, protective rubber pad; 15, cavity; 16, storage hole; 17, slider; 18, arc extrusion table; 19, positioning bolt; 20, spring; 21, knob; 22, elliptical extrusion wheel. Detailed Description of the Preferred Embodiment

[0021] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility model, and does not strictly limit the specific protection scope claimed by the present utility model.

[0022] Please refer to Figures 1-4 As shown, a high-efficiency geothermal energy extraction system includes an underground heat exchange system, a heat pump unit, and a terminal heat exchange system. The underground heat exchange system extracts geothermal energy through U-shaped pipes buried deep underground. In winter, cold water is sent underground, and the water that returns after passing through the ground is hot water. Conversely, in summer, hot water is sent underground, and the returned water is cold water. The terminal heat exchange system is opposite to the underground heat exchange system. The terminal heat exchange system is placed indoors to perform heat and cold exchange for the interior of the room.

[0023] Among them, the ground source heat pump unit includes a support base 2, an installation platform 6 and a docking tile 11. A cushion block 1 is horizontally fixed at the bottom of the support base 2. During assembly, the cushion block 1 is fixed to the ground surface by bolts to ensure the overall stability of the equipment. A ground source heat exchanger 3 is arranged between the two support bases 2. A terminal heat exchanger 4 is arranged on the top of the two support bases 2. An electric control cabinet 5 is fixed on the top of the terminal heat exchanger 4. The electric control cabinet 5 can control the compression pump 7 and the solenoid valves on each pipeline. A rib 41 is arranged along the axis on the upper surface of the terminal heat exchanger 4. Positioning holes 42 are evenly opened on both side surfaces of the rib 41. The installation platform 6 is placed above the terminal heat exchanger 4. A groove 9 is opened inside the installation platform 6. The groove 9 slides on the surface of the rib 41 so that the installation platform 6 is always placed above the terminal heat exchanger 4 and can only move horizontally. A compression pump 7 is fixed on the top of the installation platform 6.

[0024] Please refer to Figure 2 As shown, extension bars 8 are symmetrically arranged on both sides of the installation platform 6. Extension plates A10 are arranged outward at the ends of the two extension bars 8 on the same side. The docking tile 11 is placed on the lower surface of the terminal heat exchanger 4. The docking tile 11 corresponds to the installation platform 6 in position. Extension plates B12 are symmetrically arranged at both ends of the docking tile 11. The extension plates B12 are placed below the extension plates A10. A locking bolt 13 penetrates through the surface of the extension plate A10. The bottom of the locking bolt 13 is screwed on the surface of the extension plate B12. After the pipeline installation and docking are completed, the extension plate B12 and the extension plate A10 can be made to approach each other by screwing the locking bolt 13 to increase the stability of the installation platform 6. A protective rubber pad 14 is glued to the docking tile 11. The protective rubber pad 14 can prevent the surface of the equipment from being damaged during the extrusion process.

[0025] Please refer to Figure 3 and Figure 5 As shown, a cavity 15 is opened above one end inside the groove 9. Receiving holes 16 are opened on the inner walls on both sides of one end of the groove 9. The receiving holes 16 correspond to the cavity 15 in position. A slider 17 is slidably installed inside the receiving hole 16. The slider 17 is limited by the receiving hole 16 and can only move horizontally. A positioning bolt 19 is arranged below the side of the two sliders 17 close to each other. The end of the positioning bolt 19 is adapted to the internal dimension of the positioning hole 42. Through the mutual cooperation of the two, the preliminary fixation of the installation platform 6 is ensured to facilitate the stability of the compression pump 7 during pipeline installation and docking.

[0026] Among them, a spring 20 is arranged inside the storage hole 16, and one end of the spring 20 is in contact with the surface of the side of the slider 17 away from the positioning bolt 19. The elastic force of the spring 20 makes the two sliders 17 always have the force to approach each other, so that the two arc-shaped extrusion platforms 18 are always in contact with the outer surface of the elliptical extrusion wheel 22. An arc-shaped extrusion platform 18 is arranged above one side of the slider 17, and the arc-shaped extrusion platform 18 is placed above the same side of the positioning bolt 19. A knob 21 is rotatably installed on the center of one side of the upper surface of the mounting platform 6 to facilitate the control of the elliptical extrusion wheel 22 from the outside. An elliptical extrusion wheel 22 is arranged at the bottom of the knob 21, and the elliptical extrusion wheel 22 is placed inside the cavity 15. The two arc-shaped extrusion platforms 18 are in contact with the surface of the elliptical extrusion wheel 22. When adjustment is needed, the elliptical extrusion wheel 22 is controlled to rotate, and the long axis ends on both sides squeeze the two arc-shaped extrusion platforms 18, so that the positioning bolt 19 at the bottom is separated from the cooperation with the corresponding position positioning hole 42.

[0027] The working principle of the utility model is as follows: the stability of the overall equipment can be ensured by bolting the pad 1 to maintain its position, and then the underground heat exchange system, the heat pump unit and the terminal heat exchange system are connected by pipes, and the mounting platform 6 is mounted on the upper surface of the terminal heat exchanger 4, and the groove 9 and the terminal heat exchanger 4 cooperate with each other to ensure that the mounting platform 6 can only slide axially, and at the same time, due to the elastic force of the spring 20, the two sliders 17 are close to each other, and then the positioning bolt 19 and the positioning hole 42 cooperate with each other to ensure the initial fixation of the mounting platform 6, and at the same time, the arc-shaped extrusion platform 18 squeezes the elliptical extrusion wheel 22 to make the elliptical The long axis of the extrusion wheel 22 is consistent with the movable direction of the mounting platform 6. When adjusting, the knob 21 can be rotated to drive the elliptical extrusion wheel 22 to rotate, and then the arc-shaped extrusion platforms 18 on both sides are squeezed at the same time, so that the slider 17 shrinks toward the inside of the storage hole 16, and the positioning bolt 19 disengages from the positioning hole 42. At this time, the mounting platform 6 can be pushed to move axially, which facilitates the docking of the pipeline. After the pipeline is installed on the outer wall, the docking tile 11 is placed on the lower surface of the terminal heat exchanger 4. By screwing the locking bolts 13 on both sides, the extension plate A10 and the extension plate B12 are brought close to each other to increase the extrusion and improve the stability of the installation.

[0028] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A high-efficiency geothermal energy extraction system, comprising an underground heat exchange system, a heat pump unit and a terminal heat exchange system, wherein the ground source heat pump unit comprises a support base (2), a mounting platform (6) and a docking tile (11), a pad (1) is transversely fixed to the bottom of the support base (2), a ground source heat exchanger (3) is arranged between two of the support bases (2), a terminal heat exchanger (4) is arranged on the top of the two support bases (2), and an electric control cabinet (5) is fixed on the top of the terminal heat exchanger (4), characterized in that: The upper surface of the terminal heat exchanger (4) is provided with a convex strip (41) along the axis, and positioning holes (42) are evenly provided on the surfaces of both sides of the convex strip (41). The mounting platform (6) is placed above the terminal heat exchanger (4), and a groove (9) is provided on the inner side of the mounting platform (6). The groove (9) slides on the surface of the convex strip (41). A compression pump (7) is fixed on the top of the mounting platform (6). Extension strips (8) are symmetrically provided on both sides of the mounting platform (6), and two extension strips (8) on the same side are connected to each other. 8) An extension plate A (10) is provided outwardly at the end, the docking plate (11) is placed on the lower surface of the terminal heat exchanger (4), the docking plate (11) corresponds to the position of the mounting platform (6), and extension plates B (12) are symmetrically provided at both ends of the docking plate (11), the extension plate B (12) is placed below the extension plate A (10), and a locking bolt (13) passes through the surface of the extension plate A (10), and the bottom of the locking bolt (13) is screwed into the surface of the extension plate B (12).

2. The high-efficiency geothermal energy extraction system according to claim 1, characterized in that: A cavity (15) is provided above one end of the groove (9), and receiving holes (16) are provided on the inner walls on both sides of one end of the groove (9), and the positions of the receiving holes (16) and the cavity (15) correspond.

3. A high-efficiency geothermal energy extraction system according to claim 2, characterized in that: A slider (17) is slidably mounted inside the receiving hole (16); a positioning bolt (19) is arranged below the side where the two sliders (17) are close to each other; the end of the positioning bolt (19) is matched with the internal size of the positioning hole (42); an arc-shaped extrusion platform (18) is arranged above one side of the slider (17); the arc-shaped extrusion platform (18) is placed above the same side of the positioning bolt (19).

4. The high-efficiency geothermal energy extraction system according to claim 3, characterized in that: A spring (20) is arranged inside the receiving hole (16), and one end of the spring (20) is in contact with a surface of a side of the slider (17) that is away from the positioning bolt (19).

5. The high-efficiency geothermal energy extraction system according to claim 4, characterized in that: A knob (21) is rotatably mounted at the center of one side of the upper surface of the mounting platform (6), an elliptical extrusion wheel (22) is arranged at the bottom of the knob (21), the elliptical extrusion wheel (22) is placed inside the cavity (15), and the two arc-shaped extrusion platforms (18) are in contact with the surface of the elliptical extrusion wheel (22).

6. The high-efficiency geothermal energy extraction system according to claim 1, characterized in that: The butt-jointed tile plates (11) are glued with protective rubber pads (14).

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