Closed geothermal heat exchange device

Abstract

The utility model discloses a closed terrestrial heat exchange device, which belongs to the technical field of closed terrestrial heat exchange, and comprises a support frame, the top of the support frame is fixedly connected with a device body, the top of the device body is fixedly communicated with a fixed pipe, and the top of the fixed pipe is provided with a connecting pipe. Flange plates are fixedly connected to the opposite sides of the fixing pipe and the connecting pipe, limiting mechanisms are arranged on the two sides of the bottom of the supporting frame, and two supporting plates are arranged at the bottom of the supporting frame; the limiting mechanism comprises six connecting columns, six buffer springs, three limiting blocks and a bottom plate, and the problems that in the underground operation process of most existing closed geothermal heat exchange devices, due to vibration of a heat pump, soil around the closed geothermal heat exchange devices is loosened, and the heat exchange efficiency of the closed geothermal heat exchange devices is affected are solved. The problems that the position where the closed geothermal heat exchange device is located is likely to sink due to vibration, and large noise is generated due to the fact that pipeline connection is loosened due to vibration and the like are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of closed geothermal heat exchange, in particular to a closed geothermal heat exchange device. Background Art

[0002] A closed geothermal heat exchanger is a system that absorbs energy from the soil through a series of geothermal collectors installed underground, and achieves air conditioning functions through energy conversion. There are two types of closed geothermal heat exchangers. One is to use heat pump technology to pump out groundwater from the "constant temperature layer" and then discharge it back after heat exchange; the other is a soil source heat pump, which uses the energy in shallow constant temperature soil or groundwater as an energy source, buries pipes underground, and absorbs heat energy.

[0003] A Chinese patent with publication number CN216011322U discloses a closed medium-deep geothermal energy downhole heat exchange device, including a heat extraction inner tube, a heat exchange sleeve and a supporting device. The supporting device is arranged on the ground of the geothermal well, the upper end of the heat extraction inner tube is connected to the supporting device, the lower end of the heat extraction inner tube extends into the bottom of the geothermal well, the heat exchange sleeve is sleeved on the lower part of the heat extraction inner tube, a packer is arranged between the heat exchange sleeve and the geothermal well, a water injection pipe is arranged on the side of the supporting device, and a water outlet pipe connected to the heat extraction inner tube is arranged on the top of the supporting device. The lower end of the heat extraction inner tube is connected with a screen tube and a counterweight pipe. This utility model connects a screen tube to the lower end of the heat extraction inner tube, and the screen tube can filter the water flowing through the heat extraction inner tube before entering the heat extraction inner tube. The screen tube can block impurities in the water flow outside the heat extraction inner tube, thereby preventing the impurities from wearing the inner wall of the heat extraction inner tube and affecting the service life of the heat extraction inner tube.

[0004] During the underground operation of most existing closed geothermal heat exchange devices, the vibration of the heat pump causes the soil around the closed geothermal heat exchange device to loosen, which may cause the location of the closed geothermal heat exchange device to sink, and the connection of the pipeline will also loosen due to the vibration, generating loud noise. Utility Model Content

[0005] The utility model provides a closed geothermal heat exchange device, aiming to solve the problem that in the process of most existing closed geothermal heat exchange devices running underground, the soil around the closed geothermal heat exchange device becomes loose due to the vibration of the heat pump, which may cause the location of the closed geothermal heat exchange device to sink, and the connection of the pipeline will also become loose due to the vibration, generating a large noise.

[0006] The utility model is implemented as follows: a closed geothermal heat exchange device comprises a support frame, the top of the support frame is fixedly connected with a device body, the top of the device body is fixedly connected with a fixed pipe, the top of the fixed pipe is provided with a connecting pipe, the opposite sides of the fixed pipe and the connecting pipe are fixedly connected with flanges, both sides of the bottom of the support frame are provided with limiting mechanisms, and the bottom of the support frame is provided with two supporting plates;

[0007] The limiting mechanism includes six connecting columns, six buffer springs, three limiting blocks and a base plate. The bottom of the connecting column is fixedly connected to the top of the base plate. The top and bottom of the buffer spring are respectively fixedly connected to the support frame and the opposite side of the base plate. The bottom of the limiting block is fixedly connected to the top of the base plate.

[0008] In order to achieve the effect of limiting the bottom plate, as a preferred closed geothermal heat exchange device of the utility model, six limiting pads are fixedly connected to the top of the bottom plate, and the top of the limiting pads is in contact with the bottom of the support frame.

[0009] In order to facilitate the support frame to maintain balance, as a preferred closed geothermal heat exchange device of the utility model, six limit grooves are opened at the bottom of the support frame, and the top of the limit block extends to the interior of the lower limit groove and is in close contact with the interior of the limit groove.

[0010] In order to achieve the effect of fixing the support plate, as a preferred closed geothermal heat exchange device of the utility model, four connecting blocks are fixedly connected between the opposite sides of the two support plates, and two first bolts are arranged at the bottom of the connecting block, and the top of the first bolt passes through the connecting block and extends to the inside of the support frame.

[0011] In order to prevent the first bolt from loosening, as a preferred closed geothermal heat exchange device of the utility model, a rubber pad is fixedly connected to the bottom of the support plate, and an auxiliary pad is provided between the first bolt and the opposite side of the connecting block.

[0012] In order to achieve the effect of fixing the two flanges, as a preferred closed geothermal heat exchange device of the utility model, six second bolts are arranged inside the flange, and nuts are threadedly connected to the surfaces of the second bolts.

[0013] In order to facilitate the movement of the movable column, as a preferred closed geothermal heat exchange device of the utility model, the surface of the fixed pipe is fixedly connected to a fixed block, the surface of the fixed block is threadedly connected to the movable column, and the surface of the movable column is rotatably connected to a bearing.

[0014] In order to achieve the effect of limiting the nut, as a preferred closed geothermal heat exchange device of the utility model, a limiting plate is provided on the top of the bearing, and the bottom of the nut extends to the inside of the limiting plate and contacts with the inside of the limiting plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The closed geothermal heat exchange device connects the fixed pipe and the connecting pipe through a flange to facilitate heat exchange, fixes the support plate to the bottom of the support frame, and enables the support plate to assist in fixing the support frame, so that the bottom of the limit block is fixedly connected to the top of the bottom plate, so that the limit block fixes the support frame through the bottom plate, and arranges the buffer spring on the surface of the movable column so that the top of the connecting column extends to the inside of the support frame, so that the bottom plate can adjust the support frame through the buffer spring to avoid the bottom of the support frame from tilting, thereby solving the problem that in most existing closed geothermal heat exchange devices, the soil around the closed geothermal heat exchange device becomes loose due to the vibration of the heat pump during underground operation, which may cause the closed geothermal heat exchange device to sink, and the connection of the pipeline may also become loose due to the vibration to generate a large noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall structural diagram of the closed geothermal heat exchange device of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the bottom of the support frame in the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional connection between the connecting block and the supporting plate in the utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional connection of the limiting mechanism in the utility model;

[0021] Figure 5 It is a three-dimensional connection schematic diagram of the limiting plate and the nut in the utility model.

[0022] In the figure, 1. support frame; 2. support plate; 3. fixed pipe; 4. connecting pipe; 5. device body; 6. limiting mechanism; 601. connecting column; 602. buffer spring; 603. limiting block; 604. bottom plate; 7. limiting groove; 8. rubber pad; 9. first bolt; 10. connecting block; 11. auxiliary pad; 12. fixing block; 13. limiting pad; 14. second screw; 15. nut; 16. limiting plate; 17. bearing; 18. movable column; 19. flange. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0025] See also Figure 1-5 The utility model provides a technical solution: a closed geothermal heat exchange device, including a support frame 1, a device body 5 is fixedly connected to the top of the support frame 1, a fixed pipe 3 is fixedly connected to the top of the device body 5, a connecting pipe 4 is arranged on the top of the fixed pipe 3, and flanges 19 are fixedly connected to the opposite sides of the fixed pipe 3 and the connecting pipe 4, and both sides of the bottom of the support frame 1 are provided with limiting mechanisms 6, and the bottom of the support frame 1 is provided with two support plates 2;

[0026] The limiting mechanism 6 includes six connecting columns 601, six buffer springs 602, three limiting blocks 603 and a base plate 604. The bottom of the connecting column 601 is fixedly connected to the top of the base plate 604. The top and bottom of the buffer spring 602 are respectively fixedly connected to the support frame 1 and the opposite side of the base plate 604. The bottom of the limiting block 603 is fixedly connected to the top of the base plate 604.

[0027] In this embodiment: by connecting the fixed pipe 3 and the connecting pipe 4 through the flange 19, heat exchange is facilitated, and the support plate 2 is fixed to the bottom of the support frame 1, so that the support plate 2 can assist in fixing the support frame 1, and the bottom of the limit block 603 is fixedly connected to the top of the bottom plate 604, so that the limit block 603 fixes the support frame 1 through the bottom plate 604, and the buffer spring 602 is set on the surface of the movable column 18, so that the top of the connecting column 601 extends to the inside of the support frame 1, so that the bottom plate 604 can adjust the support frame 1 through the buffer spring 602 to avoid the bottom of the support frame 1 from tilting.

[0028] As a technical optimization solution of the present invention, six limiting pads 13 are fixedly connected to the top of the bottom plate 604 , and the tops of the limiting pads 13 are in contact with the bottom of the support frame 1 .

[0029] In this embodiment, by making the top of the limiting pad 13 contact with the bottom of the support frame 1, the limiting pad 13 can limit the bottom plate 604 through the buffer spring 602, thereby achieving the effect of limiting the bottom plate 604.

[0030] As a technical optimization solution of the present invention, six limiting grooves 7 are opened at the bottom of the support frame 1 , and the top of the limiting block 603 extends to the inside of the lower limiting groove 7 and is in close contact with the inside of the limiting groove 7 .

[0031] In this embodiment, by making the surface of the limit block 603 slidably connected with the inside of the limit groove 7, the support frame 1 can be adjusted through the limit block 603, thereby achieving the effect of facilitating the support frame 1 to maintain balance.

[0032] As a technical optimization solution of the utility model, four connecting blocks 10 are fixedly connected between the opposite sides of the two support plates 2, and two first bolts 9 are provided at the bottom of the connecting block 10. The top of the first bolt 9 passes through the connecting block 10 and extends to the interior of the support frame 1.

[0033] In this embodiment, by connecting the surface of the first bolt 9 with the internal thread of the support frame 1 , the first bolt 9 can fix the support plate 2 through the connecting block 10 , thereby achieving the effect of fixing the support plate 2 .

[0034] As a technical optimization solution of the utility model, a rubber pad 8 is fixedly connected to the bottom of the support plate 2 , and an auxiliary pad 11 is provided between the first bolt 9 and the opposite side of the connecting block 10 .

[0035] In this embodiment, by arranging the auxiliary pad 11 between the first bolt 9 and the opposite side of the connecting block 10, the auxiliary pad 11 can assist in fixing the first bolt 9, thereby achieving the effect of preventing the first bolt 9 from loosening.

[0036] As a technical optimization solution of the present invention, six second bolts 14 are arranged inside the flange 19 , and nuts 15 are threadedly connected to the surfaces of the second bolts 14 .

[0037] In this embodiment, by threading the inside of the nut 15 with the surface of the second bolt 14 , the second bolt 14 can fix the two flanges 19 through the nut 15 , thereby achieving the effect of fixing the two flanges 19 .

[0038] As a technical optimization solution of the utility model, a fixed block 12 is fixedly connected to the surface of the fixed pipe 3, a movable column 18 is threadedly connected to the surface of the fixed block 12, and a bearing 17 is rotatably connected to the surface of the movable column 18.

[0039] In this embodiment, by fixing the inside of the fixed block 12 with the surface of the fixed tube 3 , the movable column 18 can be conveniently moved inside the fixed block 12 , thereby achieving the effect of facilitating the movement of the movable column 18 .

[0040] As a technical optimization solution of the present invention, a limit plate 16 is provided on the top of the bearing 17 , and the bottom of the nut 15 extends to the inside of the limit plate 16 and contacts the inside of the limit plate 16 .

[0041] In this embodiment, by making the surface of the nut 15 contact with the inside of the limiting plate 16 , the limiting plate 16 can limit the nut 15 , thereby achieving the effect of limiting the nut 15 .

[0042] Working principle: First, by connecting the fixed pipe 3 and the connecting pipe 4 through the flange 19, the second bolt 14 is fixed through the nut 15, and the movable column 18 is moved inside the fixed block 12, so that the movable column 18 drives the limit plate 16 to move through the bearing 17, so that the bottom of the nut 15 can be extended to the inside of the limit plate 16, thereby preventing the nut 15 from loosening due to vibration, and the support plate 2 is fixed to the bottom of the support frame 1 through the first bolt 9, so that the support plate 2 can be used to assist in fixing the support frame 1 through the rubber pad 8, thereby increasing the contact area with the soil, at the bottom of the bottom plate 604 When the soil becomes loose, the limit block 603 moves inside the limit groove 7, and the movable column 18 is adjusted to move the bottom plate 604 downward, so that the connecting column 601 can support the support frame through the buffer spring 602, thereby avoiding the bottom of the support frame 1 from tilting. This solves the problem that during the underground operation of most existing closed geothermal heat exchange devices, the soil around the closed geothermal heat exchange device becomes loose due to the vibration of the heat pump, which may cause the position of the closed geothermal heat exchange device to sink, and the connection of the pipeline will also loosen due to vibration, generating a large noise problem.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A closed geothermal heat exchange device, comprising a support frame (1), characterized in that: The top of the support frame (1) is fixedly connected to a device body (5), the top of the device body (5) is fixedly connected to a fixed pipe (3), a connecting pipe (4) is arranged on the top of the fixed pipe (3), flanges (19) are fixedly connected to opposite sides of the fixed pipe (3) and the connecting pipe (4), limiting mechanisms (6) are arranged on both sides of the bottom of the support frame (1), and two supporting plates (2) are arranged at the bottom of the support frame (1); The limiting mechanism (6) comprises six connecting columns (601), six buffer springs (602), three limiting blocks (603) and a bottom plate (604); the bottom of the connecting column (601) is fixedly connected to the top of the bottom plate (604); the top and bottom of the buffer spring (602) are respectively fixedly connected to the support frame (1) and the opposite side of the bottom plate (604); and the bottom of the limiting block (603) is fixedly connected to the top of the bottom plate (604).

2. A closed geothermal heat exchange device according to claim 1, characterized in that: Six limiting pads (13) are fixedly connected to the top of the bottom plate (604), and the tops of the limiting pads (13) are in contact with the bottom of the support frame (1).

3. A closed geothermal heat exchange device according to claim 1, characterized in that: The bottom of the support frame (1) is provided with six limiting grooves (7), and the top of the limiting block (603) extends to the inside of the lower limiting groove (7) and is in close contact with the inside of the limiting groove (7).

4. A closed geothermal heat exchange device according to claim 1, characterized in that: Four connection blocks (10) are fixedly connected between opposite sides of the two support plates (2), two first bolts (9) are arranged at the bottom of the connection blocks (10), and the tops of the first bolts (9) pass through the connection blocks (10) and extend into the interior of the support frame (1).

5. A closed geothermal heat exchange device according to claim 4, characterized in that: A rubber pad (8) is fixedly connected to the bottom of the support plate (2), and an auxiliary pad (11) is provided between the first bolt (9) and the opposite side of the connecting block (10).

6. A closed geothermal heat exchange device according to claim 1, characterized in that: Six second bolts (14) are arranged inside the flange (19), and nuts (15) are threadedly connected on the surfaces of the second bolts (14).

7. A closed geothermal heat exchange device according to claim 6, characterized in that: A fixed block (12) is fixedly connected to the surface of the fixed tube (3), a movable column (18) is threadedly connected to the surface of the fixed block (12), and a bearing (17) is rotatably connected to the surface of the movable column (18).

8. A closed geothermal heat exchange device according to claim 7, characterized in that: A limiting plate (16) is arranged on the top of the bearing (17), and the bottom of the nut (15) extends to the inside of the limiting plate (16) and contacts the inside of the limiting plate (16).

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