阅读说明：本技术 一种井下智能集热系统 (Underground intelligent heat collecting system ) 是由 刘联军 于美丽 于 2019-10-08 设计创作，主要内容包括：一种井下智能集热系统,其特征包括：垂直井(1)和水平井(13),所述垂直井(1)和水平井(13)相互连通,所述垂直井(1)和水平井(13)内壁上设有表面隔热套管(2),并用特殊水泥稳固,所述垂直井(1)中间垂直设有介质输入管(4)和介质输出管(5),所述介质输入管(4)、介质输出管(5)与垂直井(1)中心三者相互平行,所述介质输入管(4)和介质输出管(5)周围且位于垂直井(1)内填满隔热填充料(3)。(An intelligent heat collecting system in pit, its characterized in that includes: vertical well (1) and horizontal well (13), vertical well (1) and horizontal well (13) communicate each other, be equipped with surface heat insulating sleeve pipe (2) on vertical well (1) and horizontal well (13) inner wall to stabilize with special cement, be equipped with medium input tube (4) and medium output tube (5) perpendicularly in the middle of vertical well (1), medium input tube (4), medium output tube (5) and vertical well (1) center three are parallel to each other, medium input tube (4) and medium output tube (5) are around and lie in vertical well (1) intussuseption and fill up thermal-insulated filler (3).)

1. An intelligent heat collecting system in pit, its characterized in that includes: the horizontal well heat insulation device comprises a vertical well (1) and a horizontal well (13), wherein the vertical well (1) and the horizontal well (13) are communicated with each other, and surface heat insulation sleeves (2) are arranged on the inner walls of the vertical well (1) and the horizontal well (13) and are stabilized by special cement.

2. The closed type deep geothermal energy efficient collection system according to claim 1, wherein a medium input pipe (4) and a medium output pipe (5) are vertically arranged in the middle of the vertical well (1), the medium input pipe (4), the medium output pipe (5) and the center of the vertical well (1) are parallel to each other, and the medium input pipe (4) and the medium output pipe (5) are located around the vertical well (1) and filled with heat insulation filler (3).

3. The closed type deep geothermal energy efficient collection system according to claim 1, wherein an efficient heat exchange pipe column (6) is arranged at the bottom of the vertical well (1), horizontal well efficient heat exchange pipe columns (12) are symmetrically communicated and fixedly arranged on the periphery of the middle upper portion of the efficient heat exchange pipe column (6), the horizontal well efficient heat exchange pipe columns (12) extend into a horizontal well (13), a mixture of an intelligent heat collecting agent (7) and a shaft purifying agent (8) is filled around the horizontal well efficient heat exchange pipe columns (12), and the efficient heat exchange pipe columns (6) and the horizontal well efficient heat exchange pipe columns (12) are communicated with each other.

4. The closed type deep geothermal energy efficient collection system according to claim 2, wherein the bottom of the medium input pipe (4) is fixedly and hermetically connected with an inlet of the efficient heat exchange pipe column (6), and the bottom of the medium output pipe (5) is fixedly and hermetically connected with an outlet of the efficient heat exchange pipe column (6).

5. The closed type deep geothermal energy efficient collection system according to claim 2, wherein the top of the medium input pipe (4) is fixedly and hermetically connected with the outlet of a geothermal circulating pump (11) through a medium pipeline, the medium inlet of the geothermal circulating pump (11) is fixedly and hermetically connected with the medium outlet of a user heat exchanger (10) through a medium pipeline, the medium inlet of the user heat exchanger (10) is fixedly and hermetically connected with the medium outlet of a user circulating pump (9) through a medium pipeline, and the medium inlet of the user circulating pump (9) is fixedly and hermetically connected with the top of the medium output pipe (5).

6. The closed type deep geothermal energy efficient collection system according to claim 1, wherein the horizontal well (13) is drilled by abrasive water jet technology, and the depth of the horizontal well (13) is 100-150 m.

7. The closed type deep geothermal energy efficient collection system according to claim 3, wherein the shaft purifying agent (8) is a balanced active water well-washing agent developed by the energy technology Limited of Xian Gourden castle, the intelligent heat collecting agent (7) is an intelligent heat collecting agent developed by the energy technology Limited of Xian Gourden castle, and the efficient heat exchange pipe column (6) and the horizontal well efficient heat exchange pipe column (12) are efficient heat exchange pipe columns developed by the energy technology Limited of Xian Gourden castle.

Technical Field

The invention belongs to the technical field of underground heat collecting systems, and particularly relates to an underground intelligent heat collecting system.

Background

The underground intelligent heat collecting system of the geothermal well is produced under the large background of geothermal development, the core of geothermal heating is 'heat taking without water taking', and the heat at the bottom of the well is extracted to the top of the well, therefore, the heat exchange section at the bottom of the well is required to supplement heat energy in time, so that the heat energy is continuously exchanged to the top of the well, and the high-efficiency development of the geothermal energy is realized.

Although heat energy of the heat exchange section is naturally supplemented along with the rotation and revolution of the earth, particularly at the bottom of a well with the depth of 3000 meters, the temperature is high, the heat recovery is relatively small, the natural supplement of geothermal energy is fast, but the heat recovery efficiency is not high due to the limitation of the volume of a shaft, and the temperature fluctuation exists in the shaft.

At present, the heat exchange technology of a plurality of geothermal wells is simple, the heat exchange efficiency of a vertical well and a directional well is low, direct heating cannot be realized, and secondary heating is needed.

The underground intelligent heat collecting system for the geothermal well can supplement heat of a shaft in time, has the outstanding advantages of low cost and good heat exchange effect, can be widely applied to the geothermal well which can take deep heat and does not take water, solves the problem of heat taking transformation of the geothermal well which can take water deeply, can realize 'death and revival' of a scrapped geothermal well, and is suitable for economic and effective development of the geothermal well, so that the underground intelligent heat collecting system provided by the applicant can eliminate the existing problems, has a very practical significance, and is completely necessary.

Disclosure of Invention

The invention aims to provide an underground intelligent heat collecting system and a manufacturing method thereof, and aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an intelligent heat collecting system in pit, its characterized in that includes: the horizontal well heat insulation device comprises a vertical well (1) and a horizontal well (13), wherein the vertical well (1) and the horizontal well (13) are communicated with each other, and surface heat insulation sleeves (2) are arranged on the inner walls of the vertical well (1) and the horizontal well (13) and are stabilized by special cement.

Preferably, a medium input pipe (4) and a medium output pipe (5) are vertically arranged in the middle of the vertical well (1), the medium input pipe (4), the medium output pipe (5) and the center of the vertical well (1) are parallel to each other, and heat insulation filling materials (3) are filled around the medium input pipe (4) and the medium output pipe (5) and positioned in the vertical well (1).

Preferably, the bottom of the vertical well (1) is provided with a high-efficiency heat exchange pipe column (6), the periphery of the upper part of the high-efficiency heat exchange pipe column (6) is symmetrically communicated with and fixedly provided with a horizontal well high-efficiency heat exchange pipe column (12), the horizontal well high-efficiency heat exchange pipe column (12) extends into a horizontal well (13), the periphery of the horizontal well high-efficiency heat exchange pipe column (12) is filled with a mixture of an intelligent heat collecting agent (7) and a shaft purifying agent (8), and the high-efficiency heat exchange pipe column (6) and the horizontal well high-efficiency heat exchange pipe column (12) are communicated with each.

Preferably, the bottom of the medium input pipe (4) is fixedly and hermetically connected with an inlet of the high-efficiency heat exchange pipe column (6), and the bottom of the medium output pipe (5) is fixedly and hermetically connected with an outlet of the high-efficiency heat exchange pipe column (6).

Preferably, the top of the medium input pipe (4) is fixedly and hermetically connected with an outlet of a geothermal circulating pump (11) through a medium pipeline, a medium inlet of the geothermal circulating pump (11) is fixedly and hermetically connected with a medium outlet of a user heat exchanger (10) through a medium pipeline, a medium inlet of the user heat exchanger (10) is fixedly and hermetically connected with a medium outlet of a user circulating pump (9) through a medium pipeline, and a medium inlet of the user circulating pump (9) is fixedly and hermetically connected with the top of the medium output pipe (5).

Preferably, the horizontal well (13) is drilled by using an abrasive water jet technology, and the depth of the horizontal well (13) is 100-150 m.

Preferably, the shaft purifying agent (8) is a balanced active water washing well developed by the energy technology Limited of the Xian Gutenberg, the intelligent heat collecting agent (7) is an intelligent heat collecting agent developed by the energy technology Limited of the Xian Gutenberg, and the efficient heat exchange pipe column (6) and the efficient heat exchange pipe column (12) of the horizontal well are efficient heat exchange pipe columns developed by the energy technology Limited of the Xian Gutenberg.

The underground intelligent heat collecting system and the manufacturing method thereof have the following beneficial effects:

the heat exchange efficiency is higher, can directly heat, but also has the raise the efficiency problem, can in time supply pit shaft heat, and the operation cost is low, and the heat exchange is effectual, but the wide application in the geothermal well of "deep geothermal heat of getting does not get water", solves the heat of getting water geothermal well and reforms transform the difficult problem simultaneously, can realize "striking back to life" to scrapping geothermal well, is fit for the effective development of geothermal well economy.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

FIG. 1 is a schematic view of an overall cross-sectional structure of an underground intelligent heat collecting system according to the present invention.

Fig. 2 is a sectional view taken along line a-a in fig. 1.

Fig. 3 is a sectional view taken along line B-B in fig. 1.

Fig. 4 is an enlarged view of the dotted circle in fig. 2.

FIG. 5 is a cross-sectional view of the high-efficiency heat exchange pipe column (6) in the downhole intelligent heat collecting system according to the present invention.

FIG. 6 is a top view of the high-efficiency heat exchange pipe column (6) in the downhole intelligent heat collecting system according to the present invention.

In the figure: the system comprises a vertical well (1), a surface heat insulation sleeve (2), heat insulation fillers (3), a medium input pipe (4), a medium output pipe (5), a high-efficiency heat exchange pipe column (6), an intelligent heat collecting agent (7), a shaft purifying agent (8), a user circulating pump (9), a user heat exchanger (10), a geothermal circulating pump (11), a horizontal well high-efficiency heat exchange pipe column (12) and a horizontal well (13).

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-6, the present invention provides a technical solution:

an intelligent heat collecting system in pit, its characterized in that includes: the horizontal well comprises a vertical well 1 and a horizontal well 13, wherein the vertical well 1 and the horizontal well 13 are communicated with each other, and surface heat insulation sleeves 2 are arranged on the inner walls of the vertical well 1 and the horizontal well 13 and are stabilized by special cement.

In a preferred embodiment of the present invention, a medium input pipe 4 and a medium output pipe 5 are vertically arranged in the middle of the vertical well 1, the medium input pipe 4, the medium output pipe 5 and the center of the vertical well 1 are parallel to each other, and the heat insulation filler 3 is filled around the medium input pipe 4 and the medium output pipe 5 and in the vertical well 1.

In the preferred embodiment of the invention, the bottom of the vertical well 1 is provided with the high-efficiency heat exchange pipe column 6, the periphery of the middle upper part of the high-efficiency heat exchange pipe column 6 is symmetrically communicated and fixedly provided with the horizontal well high-efficiency heat exchange pipe column 12, the horizontal well high-efficiency heat exchange pipe column 12 extends into the horizontal well 13, the periphery of the horizontal well high-efficiency heat exchange pipe column 12 is filled with the mixture of the intelligent heat collecting agent 7 and the shaft purifying agent 8, and the high-efficiency heat exchange pipe column 6 is communicated with the horizontal well high-efficiency heat exchange pipe.

In the preferred embodiment of the present invention, the bottom of the medium input pipe 4 is fixedly and hermetically connected with the inlet of the high efficiency heat exchange pipe column 6, and the bottom of the medium output pipe 5 is fixedly and hermetically connected with the outlet of the high efficiency heat exchange pipe column 6.

In a preferred embodiment of the present invention, the top of the medium input pipe 4 is fixedly and hermetically connected to the outlet of the geothermal heat circulating pump 11 through a medium pipe, the medium inlet of the geothermal heat circulating pump 11 is fixedly and hermetically connected to the medium outlet of the user heat exchanger 10 through a medium pipe, the medium inlet of the user heat exchanger 10 is fixedly and hermetically connected to the medium outlet of the user heat circulating pump 9 through a medium pipe, and the medium inlet of the user heat circulating pump 9 is fixedly and hermetically connected to the top of the medium output pipe 5.

In a preferred embodiment of the present invention, the horizontal well 13 is drilled by using an abrasive water jet technology, and the depth of the horizontal well 13 is 100-150 m.

In a preferred embodiment of the invention, the shaft purifying agent 8 is a balanced active water washing well developed by the energy technology Limited of Xian Gutenberg, the intelligent heat collecting agent 7 is an intelligent heat collecting agent developed by the energy technology Limited of Xian Gutenberg, and the high-efficiency heat exchange pipe column 6 and the high-efficiency heat exchange pipe column 12 of the horizontal well are high-efficiency heat exchange pipe columns developed by the energy technology Limited of Xian Gutenberg.

The using process of the invention is as follows:

after heat exchange is carried out between the high-efficiency heat exchange pipe column 6 and the heat exchange medium in the high-efficiency heat exchange pipe column 12 of the horizontal well, the heat exchange medium is pumped into the user heat exchanger 10 through the medium output pipe 5 and the user circulating pump 9 to carry out heat exchange, a user is heated, the heat exchange medium exchanges heat through the user heat exchanger 10 and then enters the underground high-efficiency heat exchange pipe column 6 and the high-efficiency heat exchange pipe column 12 of the horizontal well through the geothermal circulating pump 11 and the medium input pipe 4 to carry out secondary heat exchange, and the next circulation use is carried.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.