Large-diameter steel sleeve heat exchange device capable of extracting geothermal energy

A technology of heat exchange device and steel casing, which is applied in the field of efficient extraction of soil energy devices, can solve the problem of large land occupation of the soil source heat pump system, achieve the effect of reducing land area and improving heat exchange efficiency

Inactive Publication Date: 2015-02-25
BEIJING ZHONGKE HUAYU ENERGY TECH DEV
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Problems solved by technology

So as to effectively solve the problem that the ground source heat pump system occupies a large area

Method used

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  • Large-diameter steel sleeve heat exchange device capable of extracting geothermal energy

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Embodiment Construction

[0011] The large-diameter steel casing heat exchange device for extracting geothermal energy proposed by the present invention is described in detail as follows with reference to the accompanying drawings and embodiments:

[0012] The embodiment structure of a large-diameter steel casing heat exchange device for extracting geothermal energy proposed by the present invention is as follows: figure 1 As shown, the device mainly includes: a steel casing 1 with a diameter of 150-200 mm constitutes a ground source heat exchange well body (the length of the steel casing is 81-201 m), a PE inner pipe 2 (with a diameter of 80-150 mm) The length matches the steel casing), filter device 3, impurity sedimentation tank 4, heat insulation plate 5, water circulation diverter 6, two cut-off valves 7, backwash valve 8, inspection well room 9; the connection relationship is: steel The casing is inserted into the ground, the primary side return water of the heat pump unit is connected to the upp...

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Abstract

The invention relates to a large-diameter steel sleeve heat exchange device capable of extracting the geothermal energy, and belongs to the technical field of heating ventilation air conditioners capable of saving energy and reducing emission. The device mainly includes a ground source heat exchange well composed of a steel sleeve with the bottom being sealed, a PE inner tube, a filtering device, an impurity precipitation groove, a heat insulating plate and a water circulating flow diversion device. According to the connection relation, the steel sleeve is inserted into the ground, the ground source heat pump heat source side returned water is communicated with an upper end opening of the steel sleeve, and the PE inner tube is arranged in the steel sleeve; the filtering device is fixed inside the bottommost end of the PE inner tube; the impurity precipitation groove is formed in the bottommost end of the steel sleeve well; the heat insulating plate wraps the PE inner tube; the water circulating flow diversion device is arranged at a water inlet of the well and connected to the PE inner tube. By means of the large-diameter steel sleeve heat exchange device capable of extracting the geothermal energy, the problem that a soil source heat pump system is large in occupied space is solved, and the heat exchange amount of a single-opening ground source well is greatly increased.

Description

technical field [0001] The invention belongs to the technical field of heating, ventilation and air conditioning in energy saving and emission reduction, is mainly used as a heat exchange source of a ground source heat pump air conditioning system, and is an efficient soil energy extraction device. Background technique [0002] The ground source heat pump air conditioning system is a new technology in the HVAC industry. It belongs to the energy saving and environmental protection technology encouraged by the state. Its energy collection system is mainly groundwater source and soil source. Although the groundwater source has strong heat exchange capacity and significant energy saving effect, the recharge of water source wells is a technical problem, and it is difficult to achieve 100% recharge, resulting in a serious waste of water resources, and some cities have begun to restrict the use. The soil source heat pump uses the characteristics of the soil to be constant temperatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B30/06F24J3/08
CPCF24T10/17F24T2201/00F25B30/06Y02E10/10
Inventor 武涛梁忠张军
Owner BEIJING ZHONGKE HUAYU ENERGY TECH DEV
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