A method for controlling the thermal imbalance of rock and soil around buried pipes

A technology of geotechnical and thermal imbalance, which is applied in earth-moving drilling, mining fluids, wellbore/well components, etc. Simple, save investment cost, save economic cost effect

Active Publication Date: 2022-03-22
GUIZHOU UNIV
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Problems solved by technology

[0005] In order to solve the thermal imbalance problem of ground-source heat pumps with buried pipes, many scholars have also proposed various measures. For now, the most effective method should be the composite ground-source heat pump system, but this method system is relatively complicated, and the initial High investment cost

Method used

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  • A method for controlling the thermal imbalance of rock and soil around buried pipes
  • A method for controlling the thermal imbalance of rock and soil around buried pipes
  • A method for controlling the thermal imbalance of rock and soil around buried pipes

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Embodiment 1

[0029] Embodiment 1: as Figure 1-3 As shown, a method for controlling the thermal imbalance of rock and soil around the buried pipe, the method includes the following steps:

[0030] (1) Determine the area of ​​thermally unbalanced rock-soil mass (here referred to as the energy storage body) and the location of the available groundwater body or surface water resource near this area, that is, the water flow introduction point;

[0031] (2) Select the wellhead for drilling on the ground corresponding to the groundwater body, determine the build-up rate, and require the end of the build-up section to accurately hit the first target point;

[0032] (3) Take the introduction point of the groundwater flow as the first target point, and the second target point is located in the energy storage body. The position of the first target point is higher than the second target point. The two target points are used for directional horizontal drilling, and the diameter is 215.9mm PDC bit dri...

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Abstract

The invention discloses a method for controlling thermal imbalance of rock and soil around buried pipes. The method comprises the steps of: determining the area of ​​thermal imbalance rock and soil and the introduction point of water flow; selecting the wellhead and determining the build-up rate; The first target point: take the introduction point of underground river water as the first target point, the second target point is located in the energy storage body, the position of the first target point is higher than the second target point, and use these two target points for directional and horizontal drilling; to be determined After the horizontal drilling is connected with the area of ​​thermally unbalanced rock-soil mass, several vertical blastholes are drilled on the surface of the thermally unbalanced rock-soil area; medicine pack. The present invention introduces groundwater or surface water through a directional horizontal well near the energy storage body, and combines the method of blasting to increase seepage, effectively solving the thermal imbalance of the rock and soil around the buried pipe, taking away excess heat by introducing groundwater, and greatly improving the performance of the heat pump. Operating efficiency and useful life.

Description

technical field [0001] The invention relates to a method for controlling thermal imbalance of rock and soil around buried pipes, and belongs to the technical field of solutions to thermal imbalance of rock and soil around buried pipes. Background technique [0002] The ground source heat pump system uses the energy storage of the earth to achieve the balance of ground source heat, and because of the advantages of environmental protection, high efficiency and low cost, it has been vigorously promoted and applied all over the world, but it is accompanied by many problems. The heat pump has the problem of unbalanced heat absorption and discharge due to its perennial operation, which leads to thermal imbalance and a sharp decline in system performance. The invention considers that by introducing groundwater into the corresponding thermally unbalanced rock mass, the groundwater can take away excess heat in time, thereby achieving the purpose of cooling. [0003] Directional hori...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42D1/00F42D3/04E21B43/263
CPCF42D1/00F42D3/04E21B43/263
Inventor 裴鹏邹行
Owner GUIZHOU UNIV
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