Comprehensive utilization system for terrestrial heat of underground water-lacked region

A heat pump system and geothermal technology, applied in air conditioning systems, applications, heat pumps, etc., can solve the problems of unstable system operation, failure to achieve stable heating and cooling of the ground source heat pump system, and inability to stabilize refrigeration, etc., to achieve stable heating and cooling effect

Active Publication Date: 2017-02-08
HUNAN ZHONGDA JINGWEI GEOTHERMY DEV TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the differences in the environment and landforms of different places, some unsatisfactory places often appear in the popularization and application of ground source heat pump systems, resulting in unstable operation of the system
Especially in some places where the amount of groundwater is insufficient, a small amount of circulating water cannot meet the heat dissipation requirements under high-load cooling conditions. The traditional ground source heat pump system can only meet the demand for heating in winter, but cannot stabilize cooling and reach the ground level. Expected effect of source heat pump system for stable heating and cooling

Method used

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  • Comprehensive utilization system for terrestrial heat of underground water-lacked region
  • Comprehensive utilization system for terrestrial heat of underground water-lacked region
  • Comprehensive utilization system for terrestrial heat of underground water-lacked region

Examples

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Effect test

Embodiment 1

[0027] Embodiment 1: as Figure 1 to Figure 5 As shown, the geothermal comprehensive utilization system in the area with poor groundwater provided by the present invention includes: a heat pump system 1 , an outdoor ground source heat exchange system 2 , an indoor air-conditioning terminal system 3 and a solar power generation system 4 . Heat pump system 1 includes: condenser 11, expansion valve 12, evaporator 13, compressor 14, inlet four-way reversing valve 15 and outlet four-way reversing valve 16; compressor 14, evaporator 13, expansion valve 12 and condenser The devices 11 are connected sequentially through pipelines to form a circuit in which the refrigerant or heat medium circulates.

[0028]The outdoor ground source heat exchange system 2 includes: a heat exchanger 21 and a geothermal circulation pump 22; the heat exchanger 21 is a cylindrical copper alloy material with excellent thermal conductivity, and its upper end surface is provided with a heat exchanger inlet 21...

Embodiment 2

[0034] Embodiment 2: as Image 6 As shown, the components included in this embodiment, the structure of each component and the relationship between each component are the same as in Embodiment 1, the difference is that it also includes a cooling tower 24, a cooling tower valve 25, a heat exchanger valve 26 and Pressure balance valve 23.

[0035] The cooling tower 24 and the heat exchanger 21 are connected in parallel through pipelines, and the cooling tower valve 25 is set on the connecting pipeline at the end of the cooling tower 24 near the outlet four-way reversing valve 16, and the connection of the heat exchanger 21 near the outlet four-way reversing valve 16 A heat exchanger valve 26 is arranged on the pipeline, and through the combination of the cooling tower valve 25 and the heat exchanger valve 26, the simultaneous opening of the cooling tower 24 and the heat exchanger 21, or a single opening can be selectively controlled. A pressure balance valve 23 is provided betw...

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Abstract

The invention relates to the technical field of energy heat supply and air conditioning and particularly relates to a comprehensive utilization system for terrestrial heat of an underground water-lacked region. The comprehensive utilization system comprises a heat pump system, an outdoor ground-source heat exchange system, an indoor air conditioning terminal system and a solar power generation system. During heat supply, the outdoor ground-source heat exchange system is used for absorbing heat in soil; afterwards, heat energy is transmitted to the indoor air conditioning terminal system to supply heat to a room; during refrigeration, the heat pump system works, the indoor air conditioning terminal system is used for absorbing the indoor heat, and the outdoor ground-source heat exchange system is used for dissipating heat so as to realize the aim of indoor refrigeration; electric energy required by work of the heat pump system is directly provided by the solar power generation system. By adopting the comprehensive utilization system disclosed by the invention, superficial ground heat energy can be utilized farthest to satisfy stable requirements, for heat supply and cold supply of the ground-source heat pump system, of the underground water-lacked region.

Description

technical field [0001] The invention relates to the technical field of energy heating and air conditioning, in particular to a geothermal comprehensive utilization system in areas with poor groundwater. Background technique [0002] With the gradual deepening of people's awareness of environmental protection, people urgently hope to use a clean energy to replace coal-fired boilers to meet people's living needs. As a clean, energy-saving and environmentally friendly new technology, ground source heat pump air conditioners are quickly recognized and accepted by people. However, due to the differences in the environment and landforms of different places, some unsatisfactory places often appear in the popularization and application of ground source heat pump systems, resulting in unstable operation of the system. Especially in some places where the amount of groundwater is insufficient, a small amount of circulating water cannot meet the heat dissipation requirements under high...

Claims

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Application Information

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IPC IPC(8): F25B30/06F24F5/00
CPCY02B10/40F25B30/06F24F5/0046
Inventor 刘艺辉
Owner HUNAN ZHONGDA JINGWEI GEOTHERMY DEV TECH CO LTD
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