Geothermal ground loop heat exchanger

Abstract

The utility model discloses a kind of geothermal buried pipe heat exchangers. Protective structure includes the protective shell for protecting heat exchanger body, the lower end of protective shell is equipped with the limiting seat for supporting heat exchanger body, limiting seat includes limiting disc, the upper end of limiting disc is equipped with the pressure relief groove for the surface of protective shell is relieved. The utility model is relieved by the setting of protective structure, when soil extrusion protective shell, the external pressure of protective shell is increased, extruded soil can be moved to the both sides of protective structure by connecting hole, inclined hole one and inclined hole two, soil enters pressure relief groove by inclined hole two, reduce the pressure of protective shell to soil, so that protective shell is not prone to deformation, and then effectively protect heat exchanger body.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange technology, specifically to a geothermal buried pipe heat exchanger. Background Technology

[0002] A buried pipe heat exchanger is a device that utilizes the relatively stable temperature of underground soil to exchange heat with the soil through a pipe system buried deep in the soil surrounding a building.

[0003] For example, Chinese Patent Publication No. CN202320314636.8 discloses a medium-deep geothermal buried pipe heat exchange device. Its specific content is as follows: the reinforcement mechanism includes a shell, a telescopic spring is fixedly connected to the inner bottom wall of the shell, and an insertion rod is fixedly connected to the top of the telescopic spring. A protective spring is fixedly installed on the outer wall of the heat exchange pipe, and a protective plate is fixedly connected to one end of the protective spring. The telescopic spring of the reinforcement mechanism can lift the insertion rod to insert it into the soil to form a reinforcement point, burying the heat exchange pipe in the soil. Then, the handle is used to pull the limiting plate upwards. The limiting plate, along with the sliding groove and slider, disengages from the heat exchange pipe and the soil. Due to the disassembly of the limiting plate, the telescopic spring will lift the insertion rod to insert it into the soil, thereby ensuring that the heat exchange pipe can be reinforced into the soil, thus completing the work. However, it has the following technical problems:

[0004] The protective plate provides limited protection for the heat exchange device. The side of the heat exchange device with the reinforcement mechanism cannot be protected, and the soil near the reinforcement mechanism is prone to squeezing the heat exchange device, causing damage. It can be seen that the above structure provides relatively little protection for the heat exchange device. Utility Model Content

[0005] Therefore, this utility model provides a geothermal buried pipe heat exchanger to solve the problem of limited protection range for heat exchange devices in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A geothermal buried pipe heat exchanger includes a protective structure for protecting the heat exchanger body.

[0008] The protective structure includes a protective shell for protecting the heat exchanger body, and a limiting seat for supporting the heat exchanger body is installed at the lower end of the protective shell.

[0009] The limiting seat includes a limiting plate, and the upper end of the limiting plate is provided with a pressure relief groove for relieving pressure on the surface of the protective shell.

[0010] Furthermore, a connecting block is installed at the upper end of the heat exchanger body, and the outer wall of the connecting block is provided with multiple threaded holes.

[0011] Furthermore, the protective shell has an inner cavity 1 in the middle for limiting the heat exchanger body, and an inner cavity 2 at the upper end of the inner cavity 1 for limiting the connecting block 1.

[0012] Furthermore, an annular block I is installed on the upper outer wall of the protective shell, and a plurality of oblique holes I for guiding the soil are opened in the middle of the annular block I. An annular block III is installed on the lower outer wall of the protective shell, and a plurality of oblique holes II for guiding the soil are opened at the lower end of the annular block III. A plurality of reinforcing plates are vertically installed on the outer wall of the protective shell.

[0013] Furthermore, a plurality of annular blocks II are installed on the outer wall of the middle part of the protective shell, and a plurality of connecting holes for guiding the soil are opened in the middle of the annular blocks II.

[0014] Furthermore, the lower end of the limiting plate is equipped with multiple insert rods for limiting the limiting plate, and the pressure relief groove and the inclined hole are connected.

[0015] Furthermore, a connecting block two is installed in the middle of the cavity of the pressure relief groove, and a supporting base plate is installed at the upper end of the connecting block two. The outer wall of the supporting base plate is provided with multiple threaded holes two.

[0016] Furthermore, the upper end of the protective shell is equipped with a plurality of bolts 1 for limiting the protective structure by engaging threaded holes, and the lower end of the protective shell is equipped with a plurality of bolts 2 for limiting the limiting seat by engaging threaded holes 2.

[0017] This utility model has the following advantages:

[0018] This utility model can effectively protect the heat exchanger body by setting up a protective structure. When the soil squeezes the protective shell, causing the external pressure of the protective shell to increase, the squeezed soil can move to both sides of the protective structure through the connecting hole, inclined hole one and inclined hole two. The soil enters the pressure relief groove through inclined hole two, reducing the pressure of the soil on the protective shell, making the protective shell less prone to deformation, thereby effectively protecting the heat exchanger body. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the protective structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the limiting seat of this utility model.

[0024] In the diagram: 100 - heat exchanger body, 110 - connecting block one, 111 - threaded hole one;

[0025] 200-Protective structure, 210-Protective outer shell, 211-Inner cavity one, 212-Inner cavity two, 213-Annular block one, 214-Angled hole one, 215-Annular block two, 216-Connecting hole, 217-Annular block three, 218-Angled hole two, 219-Reinforcing plate, 10-Bolt one, 20-Bolt two, 220-Limiting seat, 221-Limiting plate, 222-Insertion rod, 223-Pressure relief groove, 224-Connecting block two, 225-Supporting base plate, 226-Threaded hole two. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] The terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

[0028] Please see Figures 1-3This utility model provides a geothermal buried pipe heat exchanger, including a protective structure 200 for protecting the heat exchanger body 100. A connecting block 110 is installed at the upper end of the heat exchanger body 100. The outer wall of the connecting block 110 is provided with a plurality of threaded holes 111 to fix the heat exchanger body 100 in the middle of the protective structure 200, so that the protective structure 200 protects the heat exchanger body 100.

[0029] The protective structure 200 includes a protective shell 210 for protecting the heat exchanger body 100. The top of the protective shell 210 is conical. The middle of the protective shell 210 has an inner cavity 211 for limiting the heat exchanger body 100. The upper end of the inner cavity 211 has an inner cavity 212 for limiting the connecting block 110. The inner cavity 211 and the inner cavity 212 are concentric circles so that after the heat exchanger body 100 is placed in the inner cavity 211, the connecting block 110 is located in the inner cavity 212.

[0030] An annular block 213 is fixedly installed on the upper outer wall of the protective shell 210. Multiple inclined holes 214 for guiding soil are provided in the middle of the annular block 213, with one end of each inclined hole facing the top of the protective shell 210, facilitating soil extrusion through the inclined holes 214. An annular block 217 is fixedly installed on the lower outer wall of the protective shell 210. Multiple inclined holes 218 for guiding soil are provided at the lower end of the annular block 217. The arrangement of these inclined holes 218 allows soil to move downwards through the inclined holes 218 when the protective shell 210 is compressed.

[0031] Multiple annular blocks 215 are installed on the outer wall of the middle part of the protective shell 210. Multiple connecting holes 216 for guiding the soil are opened in the middle of the annular blocks 215. When the soil outside the protective shell 210 squeezes the protective shell 210, the soil can move to both sides of the protective shell 210 through the multiple connecting holes 216 to relieve the pressure in the middle of the protective shell 210.

[0032] Multiple reinforcing plates 219 are vertically fixedly installed on the outer wall of the protective shell 210. The reinforcing plates 219 are used to fix two adjacent annular blocks 215, to fix annular blocks 1 213 and 215, and to fix annular blocks 215 and 3 217. The reinforcing plates 219 are welded to annular blocks 1 213, 215, and 217. The arrangement of multiple reinforcing plates 219 increases the mechanical strength of the protective shell 210, making it less prone to deformation and thus less likely to compress the heat exchanger body 100, thereby protecting the heat exchanger body 100.

[0033] A limiting seat 220 for supporting the heat exchanger body 100 is installed at the lower end of the protective shell 210. The limiting seat 220 includes a limiting plate 221. Multiple insertion rods 222 for limiting the limiting plate 221 are fixedly installed at the lower end of the limiting plate 221. The insertion rods 222 are inserted into the soil to position the protective structure 200, thereby positioning the heat exchanger body 100. The pressure relief groove 223 is connected to the inclined hole 218. When the pressure in the middle of the protective shell 210 increases and squeezes the soil, the soil can enter the pressure relief groove 223 through the inclined hole 218, thereby reducing the external pressure of the protective shell 210. The upper end of the limiting plate 221 is provided with a pressure relief groove 223 for relieving pressure on the surface of the protective shell 210. The pressure relief groove 223 is used to store soil to reduce the external pressure of the protective shell 210 and avoid excessive pressure squeezing the protective shell 210.

[0034] A connecting block 224 is fixedly installed in the middle of the cavity of the pressure relief groove 223. A support base plate 225 is fixedly installed on the upper end of the connecting block 224. The outer wall of the support base plate 225 has multiple threaded holes 226. Multiple bolts 10 are installed on the upper end of the protective shell 210 to limit the protective structure 200 by engaging with the threaded hole 111. The bolts 10 are screwed into the threaded hole 111 to fix the connecting block 110 in the inner cavity 212. Multiple bolts 20 are installed on the lower end of the protective shell 210 to limit the limiting seat 220 by engaging with the threaded hole 226. The bolts 20 are screwed into the threaded hole 226 to fix the limiting seat 220 in the lower end of the protective shell 210, so that the top of the limiting plate 221 and the bottom of the protective shell 210 fit together, which facilitates the connection between the inclined hole 218 and the pressure relief groove 223.

[0035] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A geothermal buried pipe heat exchanger, comprising a protective structure (200) for protecting the heat exchanger body (100), characterized in that: The protective structure (200) includes a protective shell (210) for protecting the heat exchanger body (100), and a limiting seat (220) for supporting the heat exchanger body (100) is installed at the lower end of the protective shell (210). The limiting seat (220) includes a limiting plate (221), and the upper end of the limiting plate (221) is provided with a pressure relief groove (223) for relieving pressure on the surface of the protective shell (210).

2. The geothermal buried pipe heat exchanger according to claim 1, characterized in that: The upper end of the heat exchanger body (100) is equipped with a connecting block (110), and the outer wall of the connecting block (110) is provided with a plurality of threaded holes (111).

3. The geothermal buried pipe heat exchanger according to claim 2, characterized in that: The protective shell (210) has an inner cavity 1 (211) in the middle for limiting the heat exchanger body (100), and an inner cavity 2 (212) at the upper end of the inner cavity 1 (211) for limiting the connecting block 1 (110).

4. The geothermal buried pipe heat exchanger according to claim 1, characterized in that: The protective shell (210) has an annular block 1 (213) installed on the upper outer wall. The annular block 1 (213) has multiple oblique holes 1 (214) for guiding the soil in the middle. The protective shell (210) has an annular block 3 (217) installed on the lower outer wall. The annular block 3 (217) has multiple oblique holes 2 (218) for guiding the soil in the lower end. The protective shell (210) has multiple reinforcing plates (219) installed vertically on the outer wall.

5. The geothermal buried pipe heat exchanger according to claim 1, characterized in that: The outer wall of the protective shell (210) is equipped with a plurality of annular blocks (215), and the annular blocks (215) are provided with a plurality of connecting holes (216) for guiding the soil.

6. The geothermal buried pipe heat exchanger according to claim 4, characterized in that: The lower end of the limiting plate (221) is equipped with multiple insert rods (222) for limiting the limiting plate (221), and the pressure relief groove (223) and the inclined hole (218) are connected.

7. The geothermal buried pipe heat exchanger according to claim 2, characterized in that: A connecting block two (224) is installed in the middle of the cavity of the pressure relief groove (223), and a support base plate (225) is installed at the upper end of the connecting block two (224). Multiple threaded holes two (226) are opened on the outer wall of the support base plate (225).

8. The geothermal buried pipe heat exchanger according to claim 7, characterized in that: The upper end of the protective shell (210) is equipped with a plurality of bolts (10) that fit into threaded holes (111) to limit the protective structure (200), and the lower end of the protective shell (210) is equipped with a plurality of bolts (20) that fit into threaded holes (226) to limit the limiting seat (220).

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