Solar heat storage-ground source heat pump integrated system based on rainwater storage/infiltration

Abstract

The invention discloses a solar heat storage-ground source heat pump integrated system based on rainwater storage/infiltration, and belongs to the technical field of energy-saving systems. The system comprises the following five pipeline systems: a solar heat collection system, a vertical and horizontal ground buried pipe heat exchange system, a ground source heat pump system, a rainwater storage/infiltration system and an air conditioning terminal system. The invention is an improvement on the conventional solar-ground source heat pump systems. The system can solve the problem of ground source heat pump heat supply/heat elimination imbalance in the heat supply load dominant areas and the problem of unbalanced underground soil temperature field due to long-term operation; and can effectively eliminate the danger of overheat due to the empty sun exposure of solar heat collectors in summer, prolong the service life of solar heat collectors and increase the comprehensive utilization rate of solar energy. Besides, the rainwater storage/infiltration technique is adopted to effectively improve the heat exchange property of the soil, increase the work efficiency of the solar seasonal heat storage-ground source heat pump system, promote the sustainable recycling of rainwater and effectively reduce the flood disaster and runoff pollution.

Description

technical field [0001] The present invention focuses on the rational use of energy, increasing the development of renewable energy, making full use of rainwater resources, improving the urban water environment, etc., and particularly relates to an integrated system based on rainwater storage and infiltration and solar heat storage-soil source heat pump. Background technique [0002] The rapid growth of building energy consumption has made energy and environmental issues increasingly prominent, and people have paid unprecedented attention to building energy conservation. In this context, the emergence of solar-ground source heat pump systems has brought broad development prospects for building energy conservation. This system Using solar energy and the energy stored in the soil as a composite heat source makes up for the defects in the application of a single heat source and improves the utilization rate of resources. It has become a new energy-saving and environmentally frien...

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Problems solved by technology

[0003] However, there are many problems in the design and operation of the traditional solar-ground source heat pump system: when the solar collector system is used in summer, the solar collector is usually in an empty state

2) How to avoid the increase of soil temperature caused by the soil acting as a heat storage body in summer to accept the heat exhausted by the solar collector system, the condensation heat of the air conditioner is unfavorable for heat dissipation, the condensation temperature rises, and the system operation efficiency decreases

There are many problems in this rainwater management method: 1) Since the roads in modern cities are mostly impermeable surfaces, the traditional rainwater management mode will increase the risk of urban flooding, the pollution of rainwater runoff will be serious, and the ecological environment will deteriorate accordingly; 2) Water shortage in northern my country Seriously, urban groundwater pumping cannot make ends meet, and the supply of groundwater (especially shallow groundwater) is cut off, destroying the natural circulation process of the original water system

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