Heat pipe heat exchange well for geothermal station
The heat pipe heat exchange well addresses insulation and fixation issues in geothermal wells by employing a double-layer pipe structure with thermal insulation and reinforcing plates, improving efficiency and stability.
Patent Information
- Application Number
- CN202420906826.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-28
AI Technical Summary
Existing geothermal wells face issues with heat loss due to inadequate insulation and difficulty in pipe fixation, leading to reduced efficiency and stability during installation.
A heat pipe heat exchange well design featuring a rock and soil layer with a pipeline body, thermal insulation structure, protective structure, and reinforcing plates, including a double-layer pipe arrangement with thermal insulation cotton and cementing sections to enhance stability and insulation.
The design improves thermal insulation, reduces heat loss, increases structural strength, and enhances the service life and efficiency of geothermal heating systems.
Smart Images
Figure CN222187380U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of geothermal energy utilization for urban centralized heating, in particular to a heat pipe heat exchange well for a geothermal station. Background Art
[0002] The geothermal wells commonly used at present are mainly used to provide heating energy for buildings. The circulating heat exchange medium flows downward from the middle gap and then flows outward from the bottom.
[0003] The temperature of the existing heat pipe heat exchange well will become higher and higher with the increase of depth. The failure to effectively insulate the pipes will easily cause heat loss. During installation, it is not convenient to fix the pipes, which greatly reduces the efficiency of the equipment. Utility Model Content
[0004] The purpose of the utility model is to provide a heat pipe heat exchange well for a geothermal station to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A heat pipe heat exchange well for a geothermal station comprises a rock and soil layer, an upper outward-turning lower guide plate and a pipeline body, wherein the pipeline body is arranged inside the rock and soil layer, a thermal insulation structure is fixedly connected to the outside of the pipeline body, a protective structure is arranged inside the thermal insulation structure, a fixed structure is arranged outside the thermal insulation structure, a vertical plate is vertically fixedly connected to the inside of the pipeline body, an upper outward-turning lower guide plate is fixedly connected to one side of the vertical plate, and a lower outward-turning upper guide plate is fixedly connected to the other side of the vertical plate.
[0007] Preferably, the interior of the fixed structure is sequentially provided with an upper cementing section, a lower cementing section and a bottom cementing section, the upper cementing section is fixedly connected to the top of the thermal insulation structure, the bottom end of the upper cementing section is fixedly connected to the lower cementing section, and the bottom end of the lower cementing section is fixedly connected to the bottom cementing section.
[0008] Preferably, the diameters of the upper cementing section and the lower cementing section are equal, and the upper cementing section is arranged outside the lower cementing section.
[0009] Preferably, the interior of the thermal insulation structure is sequentially provided with an outer tube body, an inner tube body, an inner cavity and thermal insulation cotton, the inner tube body is fixedly connected to the interior of the pipeline body, the outer tube body is provided outside the inner tube body, and an inner cavity is formed between the inner tube body and the outer tube body.
[0010] Preferably, thermal insulation cotton is arranged inside the thermal insulation cotton, and the diameter of the inner tube body is smaller than the diameter of the outer tube body.
[0011] Preferably, a first connecting seat, a reinforcing plate and a second connecting seat are sequentially arranged inside the protective structure, and the reinforcing plates are fixedly connected to the inside of the thermal insulation structure. A first connecting seat is arranged on one side of the reinforcing plate, and a second connecting seat is arranged on the other side of the reinforcing plate.
[0012] Preferably, the outer width of the reinforcing plate is smaller than the inner width of the first connecting seat and the reinforcing plate, the reinforcing plate is embedded in the first connecting seat and the reinforcing plate, the widths of the reinforcing plates are equal, and the reinforcing plates are arranged at equal intervals inside the thermal insulation structure.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] A heat pipe heat exchange well for a geothermal station, wherein an upper cementing section, a lower cementing section and a bottom cementing section are arranged inside a fixed structure, the upper cementing section is fixed to the top of a thermal insulation structure, the bottom end of the upper cementing section is connected to the lower cementing section, the bottom end of the lower cementing section is connected to the bottom cementing section, the upper cementing section is located at the outermost part of a pipeline body, and the bottom cementing section is at the bottom. Prepared cement slurry is injected into the lower cementing section and the inside of the bottom cementing section, and then the prepared cement slurry is injected into the inside in sequence, thereby increasing the stability of the equipment;
[0015] A heat pipe heat exchange well for a geothermal station, wherein an outer pipe body, an inner pipe body, an inner cavity and thermal insulation cotton are arranged inside a thermal insulation structure, the inner pipe body is fixed inside a pipeline body, the outer pipe body is arranged outside the inner pipe body, an inner cavity is formed between the inner pipe body and the outer pipe body to arrange the outer pipe body, the outer pipe body and the inner pipe body are arranged in a double-layer structure, thermal insulation cotton is arranged between the outer pipe body and the inner pipe body, the thermal insulation effect is increased, the thermal insulation effect is good, thereby reducing heat loss and increasing the working efficiency of the equipment;
[0016] A heat pipe heat exchange well for a geothermal station is provided with a first connecting seat, a reinforcing plate and a second connecting seat through the interior of a protective structure, the reinforcing plate is fixed inside a thermal insulation structure, the first connecting seat is provided on one side of the reinforcing plate, and the second connecting seat is provided on the other side of the reinforcing plate. The reinforcing plate is provided to increase the internal structural strength of the pipeline, and the reinforcing plate is composed of four intersecting triangles. The structural strength of the triangles themselves is sufficiently stable, and the four triangles can further increase the strength of the structure, thereby increasing the service life of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the front cross-sectional structure of a heat pipe heat exchange well used in a geothermal station;
[0018] Figure 2 It is a schematic diagram of a partial structure of a heat pipe heat exchange well used in a geothermal station from a top view;
[0019] Figure 3 It is a schematic diagram of a partial cross-section of an enlarged structure of a heat insulation cotton used in a heat pipe heat exchange well of a geothermal station;
[0020] Figure 4 The present invention is a schematic diagram of a partial cross-sectional structure of a reinforcement plate used in a heat pipe heat exchange well of a geothermal station.
[0021] In the figure: 1. rock and soil layer; 2. fixed structure; 201. upper cementing section; 202. lower cementing section; 203. bottom cementing section; 3. thermal insulation structure; 301. outer pipe body; 302. inner pipe body; 303. inner cavity; 304. thermal insulation cotton; 4. vertical plate; 5. protective structure; 501. first connecting seat; 502. reinforcement plate; 503. second connecting seat; 6. upper outer-to-lower guide plate; 7. lower outer-to-upper guide plate; 8. pipeline body. DETAILED DESCRIPTION
[0022] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.
[0023] See also Figure 1-4 A heat pipe heat exchange well for a geothermal station comprises a rock and soil layer 1, an upper outward-turning lower guide plate 6 and a pipeline body 8. The pipeline body 8 is arranged inside the rock and soil layer 1, and a thermal insulation structure 3 is fixedly connected to the outside of the pipeline body 8. A protective structure 5 is arranged inside the thermal insulation structure 3, and a fixed structure 2 is arranged outside the thermal insulation structure 3. A vertical plate 4 is vertically fixedly connected to the inside of the pipeline body 8, and an upper outward-turning lower guide plate 6 is fixedly connected to one side of the vertical plate 4, and a lower outward-turning upper guide plate 7 is fixedly connected to the other side of the vertical plate 4.
[0024] Furthermore, an upper cementing section 201, a lower cementing section 202 and a bottom cementing section 203 are sequentially arranged inside the fixed structure 2. The upper cementing section 201 is fixedly connected to the top of the thermal insulation structure 3, the bottom end of the upper cementing section 201 is fixedly connected to the lower cementing section 202, and the bottom end of the lower cementing section 202 is fixedly connected to the bottom cementing section 203. By arranging the bottom cementing section 203, the bottom cementing section 203 and the upper cementing section 201 and the lower cementing section 202 cooperate with each other to complete the injection molding, thereby increasing the utilization efficiency of the pipeline.
[0025] Furthermore, the diameters of the upper cementing section 201 and the lower cementing section 202 are equal, and the upper cementing section 201 is arranged outside the lower cementing section 202. By arranging the upper cementing section 201 and the upper cementing section 201 and the lower cementing section 202 are injection molded in sections, the stability of the pipeline is improved.
[0026] Furthermore, the interior of the thermal insulation structure 3 is sequentially provided with an outer tube body 301, an inner tube body 302, an inner cavity 303 and thermal insulation cotton 304. The inner tube body 302 is fixedly connected to the interior of the pipeline main body 8. The outer tube body 301 is provided on the outside of the inner tube body 302. The inner cavity 303 is formed between the inner tube body 302 and the outer tube body 301. By providing the thermal insulation cotton 304, the thermal insulation effect of the thermal insulation structure 3 is increased, thereby improving the working efficiency of the equipment.
[0027] Furthermore, thermal insulation cotton 304 is arranged inside the thermal insulation cotton 304, the diameter of the inner tube body 302 is smaller than the diameter of the outer tube body 301, and by setting the outer tube body 301, the outer tube body 301 and the inner tube body 302 are designed as a double-layer structure. The double-layer structure has better thermal insulation effect, thereby increasing the thermal insulation effect of the thermal insulation structure 3.
[0028] Furthermore, the interior of the protective structure 5 is sequentially provided with a first connecting seat 501, a reinforcing plate 502 and a second connecting seat 503, and the reinforcing plates 502 are fixedly connected to the interior of the thermal insulation structure 3. The first connecting seat 501 is provided on one side of the reinforcing plate 502, and the second connecting seat 503 is provided on the other side of the reinforcing plate 502. By providing the first connecting seat 501, the first connecting seat 501 and the second connecting seat 503 are provided on both sides of the reinforcing plate 502, the reinforcing plate 502 is fixedly limited.
[0029] Furthermore, the width of the outside of the reinforcing plate 502 is smaller than the width of the inside of the first connecting seat 501 and the reinforcing plate 502, the reinforcing plate 502 is embedded in the first connecting seat 501 and the reinforcing plate 502, the width of the reinforcing plates 502 is equal, and the reinforcing plates 502 are arranged at equal intervals inside the thermal insulation structure 3. By setting the reinforcing plate 502, the reinforcing plate 502 is set inside the pipeline, which increases the structural strength of the pipeline and extends the service life of the pipeline.
[0030] The working principle of the utility model is: first, an upper cementing section 201, a lower cementing section 202 and a bottom cementing section 203 are arranged inside the fixed structure 2, the upper cementing section 201 is fixed to the top of the thermal insulation structure 3, the bottom end of the upper cementing section 201 is connected to the lower cementing section 202, the bottom end of the lower cementing section 202 is connected to the bottom cementing section 203, the upper cementing section 201, the upper cementing section 201 is located at the outermost part of the pipeline body 8, and the bottom cementing section 203 At the bottom, the prepared cement slurry is injected into the bottom cementing section 203, and then the prepared cement slurry is injected into the lower cementing section 202 and the upper cementing section 201 in turn, which increases the stability of the equipment. Then, the outer tube body 301, the inner tube body 302, the inner cavity 303 and the insulation cotton 304 are arranged inside the thermal insulation structure 3, and the inner tube body 302 is fixed inside the pipeline body 8, and the outer tube body 301, the inner tube body 302 are arranged outside An outer tube body 301 is arranged to form an inner cavity 303 between the outer tube body 301, and the outer tube body 301 and the inner tube body 302 are arranged in a double-layer structure. Insulation cotton 304 is arranged between the outer tube body 301 and the inner tube body 302, which increases the insulation effect. The insulation effect is good, thereby reducing heat loss and increasing the working efficiency of the equipment. Finally, a first connecting seat 501, a reinforcing plate 502 and a second connecting seat 503 are arranged inside the protective structure 5. The reinforcing plate 502 is fixed inside the thermal insulation structure 3. The first connecting seat 501 is arranged on one side of the reinforcing plate 502, and the second connecting seat 503 is arranged on the other side of the reinforcing plate 502, thereby increasing the internal structural strength of the pipeline. The reinforcing plate 502 is composed of four intersecting triangles. The structural strength of the triangle itself is stable enough, and the four triangles can further increase the strength of the structure, thereby increasing the service life of the pipeline. In this way, the working process of a heat pipe heat exchange well for a geothermal station is completed.
[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0032] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.
Claims
1. A heat pipe heat exchange well for a geothermal station, comprising a rock layer (1), an upper outer-turning lower guide plate (6) and a pipe body (8), Features: A pipeline body (8) is arranged inside the rock and soil layer (1), a thermal insulation structure (3) is fixedly connected to the outside of the pipeline body (8), a protective structure (5) is arranged inside the thermal insulation structure (3), a fixed structure (2) is arranged outside the thermal insulation structure (3), a vertical plate (4) is vertically fixedly connected to the inside of the pipeline body (8), an upper outward-turning lower guide plate (6) is fixedly connected to one side of the vertical plate (4), and a lower outward-turning upper guide plate (7) is fixedly connected to the other side of the vertical plate (4).
2. A heat pipe heat exchange well for a geothermal station according to claim 1, It is characterized in that An upper cementing section (201), a lower cementing section (202) and a bottom cementing section (203) are sequentially arranged inside the fixed structure (2); the upper cementing section (201) is fixedly connected to the top of the thermal insulation structure (3); the bottom end of the upper cementing section (201) is fixedly connected to the lower cementing section (202); and the bottom end of the lower cementing section (202) is fixedly connected to the bottom cementing section (203).
3. A heat pipe heat exchange well for a geothermal station according to claim 2, It is characterized in that The diameters of the upper cementing section (201) and the lower cementing section (202) are equal, and the upper cementing section (201) is arranged outside the lower cementing section (202).
4. The heat pipe heat exchange well for a geothermal station according to claim 1, Features: The interior of the thermal insulation structure (3) is provided with an outer tube body (301), an inner tube body (302), an inner cavity (303) and thermal insulation cotton (304) in sequence; the inner tube body (302) is fixedly connected to the interior of the pipeline body (8); the outer tube body (301) is provided outside the inner tube body (302); and an inner cavity (303) is formed between the inner tube body (302) and the outer tube body (301).
5. A heat pipe heat exchange well for a geothermal station according to claim 4, Features: The thermal insulation cotton (304) is arranged inside the thermal insulation cotton (304), and the diameter of the inner tube body (302) is smaller than the diameter of the outer tube body (301).
6. A heat pipe heat exchange well for a geothermal station according to claim 1, It is characterized in that A first connection seat (501), a reinforcing plate (502) and a second connection seat (503) are sequentially arranged inside the protective structure (5); the reinforcing plates (502) are fixedly connected to the inside of the thermal insulation structure (3); the first connection seat (501) is arranged on one side of the reinforcing plate (502), and the second connection seat (503) is arranged on the other side of the reinforcing plate (502).
7. A heat pipe heat exchange well for a geothermal station according to claim 6, It is characterized in that The outer width of the reinforcing plate (502) is smaller than the inner width of the first connecting seat (501) and the reinforcing plate (502); the reinforcing plate (502) is embedded in the first connecting seat (501) and the reinforcing plate (502); the widths of the reinforcing plates (502) are equal; and the reinforcing plates (502) are arranged at equal intervals inside the thermal insulation structure (3).