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Temperature response calculation method of pile foundation spiral buried pipe under condition of underground water seepage

A technology of groundwater seepage and temperature response, applied in calculation, computer-aided design, application, etc., can solve the problem that there is no method for calculating the temperature response of underground medium, and achieve the effect of increasing heat transfer and enhancing heat transfer capacity.

Active Publication Date: 2017-01-25
山东中瑞新能源科技有限公司
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Problems solved by technology

[0005] At present, there are few studies on pile-buried pipes under the condition of groundwater seepage, and there is no method to calculate the temperature response of the underground medium when the groundwater seeps at three-dimensional velocity in the underground space

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  • Temperature response calculation method of pile foundation spiral buried pipe under condition of underground water seepage
  • Temperature response calculation method of pile foundation spiral buried pipe under condition of underground water seepage
  • Temperature response calculation method of pile foundation spiral buried pipe under condition of underground water seepage

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with accompanying drawing.

[0038]Both the pile foundation and the spiral heat exchange tube embedded in it have corresponding geometric dimensions, and parameters such as the diameter and length of the pile foundation, spiral diameter, spiral pitch, and spiral length all affect the heat transfer of the pile buried pipe. The subsurface medium can be considered as a homogeneous medium with the same thermophysical parameters. The present invention proposes an analytical calculation method for the temperature response of energy piles under the condition of groundwater seepage. For pile foundation spiral buried pipes with different geometric parameters, when groundwater flows through, under the action of heat conduction and convection compound heat transfer, the underground medium removes The temperature response at any point outside the spiral heat exchange tube can be obtained.

[0039] In addition, th...

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Abstract

The invention discloses a temperature response calculation method of a pile foundation spiral buried pipe under a condition of underground water seepage. The temperature response calculation method of a single pile foundation spiral buried pipe under a condition of three-dimensional underground water seepage according to a temperature response, generated by a point heat source, in an infinite uniform medium of underground water at a three-dimensional speed during flowing of the medium. When the underground water flows through a pile buried pipe group at the three-dimensional speed, the temperature response generated by any point in the underground medium at any time is superposition of effects of the underground water seepage and heat exchange of the pile buried pipe group, so that a calculation mode of the temperature response can be obtained. Furthermore, a backward reasoning and calculating method is used for setting ranges of the size and the direction of the flowing speed of the underground water in a process of obtaining the seepage speed of the underground water; values are continuously extracted from the ranges, and points are arranged around a drilled hole; a variance sum of calculated values and experimental values of all the points within a certain time phase is calculated; when the variance sum of most of the points is minimum, the size and the direction of the actual flow speed of the underground water are obtained.

Description

technical field [0001] The invention belongs to the professional engineering technical field of building environment and energy application, and in particular relates to a method for calculating the temperature response of a pile foundation spiral buried pipe under the condition of groundwater seepage. Background technique [0002] The ground source heat pump technology uses the underground medium as the cold and heat source, and discharges heat to the ground and absorbs heat from the ground in summer and winter. The temperature of the underground medium fluctuates little throughout the year, and it is an ideal cold and heat source. Therefore, this type of heat pump has the advantages of energy saving and environmental protection. It belongs to the renewable energy air conditioning system and has been widely used. The geothermal heat exchanger part is the main symbol that distinguishes the ground source heat pump system from other types of heat pump systems. At present, the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/367G06F2119/08F24T10/15F24T2201/00Y02E10/10
Inventor 张文科崔萍满意崔玉萍方肇洪
Owner 山东中瑞新能源科技有限公司
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