Middle-deep buried pipe sand box experiment system for simulating real geological conditions

An experimental system and deep-level technology, applied in the field of medium-deep buried tube sand box experimental system, can solve the problems of high land occupation, inconvenient for precise control, etc., and achieve the effect of convenient operation and observation

Pending Publication Date: 2021-03-30
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0003] Medium-deep buried pipe heat exchanger is a technical innovation of buried pipe ground source heat pump system. It has the unique advantages of less land occupation and high ground temperature, and is especially suitable for application in cold regions; there are few medium-deep pipe heat exchangers in existing technologies The experimental device for simulating the influence of real geological conditions on the heat transfer of buried pipes in the field of ground source heat pumps considers the combined effects of geothermal gradient, groundwater seepage, and geological stratification. Therefore, it is urgent to develop a new type of sand box experiment system for medium and deep buried pipes.

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  • Middle-deep buried pipe sand box experiment system for simulating real geological conditions
  • Middle-deep buried pipe sand box experiment system for simulating real geological conditions
  • Middle-deep buried pipe sand box experiment system for simulating real geological conditions

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0036] The present invention provides a medium-deep buried pipe sand box experiment system for simulating real geological conditions, which includes a sand box 1, a geothermal gradient construction component, a buried pipe unit, a groundwater seepage construction component, a geological layer construction component, data acquisition and control components;

[0037] like figure 1 and 2 As shown,...

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Abstract

The invention belongs to the related technical field of buried pipe ground source heat pump systems and discloses a middle-deep layer buried pipe sand box experiment system for simulating real geological conditions. The experimental system comprises a sand box, a geological stratification building assembly, a terrestrial heat gradient building assembly, an underground water seepage building assembly and a buried pipe unit, wherein the geological stratification construction assembly is used for simulating soil environments with different depths; the terrestrial heat gradient building assembly is used for simulating different temperatures of geological layers with different depths; the underground water seepage construction assembly permeates water into the sand box to simulate the water seepage condition of a geological layer; a buried pipe of the buried pipe unit is a coaxial sleeve buried pipe, the temperature difference between an inlet and an outlet of the coaxial sleeve buried pipeis measured, and the heat exchange condition of the buried pipe in the sand box is obtained. According to the system, the combined action of three factors of terrestrial heat gradient, underground water seepage and geological stratification is simulated, a single geological condition or multiple geological conditions are created, and a simple and convenient experimental system is provided.

Description

technical field [0001] The invention belongs to the technical field related to buried pipe ground source heat pump systems, and more specifically relates to a medium-deep buried pipe sandbox experiment system that simulates real geological conditions. Background technique [0002] For the buried pipe ground source heat pump system, the most important thing is the buried pipe heat exchanger. Now the mature shallow buried tube heat exchanger technology usually has a drilling depth of about 100 meters, but in practical applications it is often restricted by insufficient land for buried tubes. The new variant of the buried tube heat exchanger, the drilling depth can reach more than 2000 meters. In the engineering practice of exploring middle and deep buried tube heat exchangers, due to the consideration of pipeline strength and construction technology, casing type has become the mainstream buried tube form, instead of U-shaped tubes commonly used in shallow buried tubes. When ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/40
CPCG09B23/40
Inventor 罗勇强许国治
Owner HUAZHONG UNIV OF SCI & TECH
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