Solar energy and geothermal energy complementation type wind energy heat pump system

Abstract

The invention relates to a solar energy and geothermal energy complementation type wind energy heat pump system. The system comprises a wind power generation device, a solar thermal collector, a high-temperature water source heat pump unit, a thermal/cold storage water tank, a thermal storage buried tube stack and a cold storage buried tube stack, wherein the wind power generation device provides electricity for the high-temperature water source heat pump unit, and the heat pump unit is connected with the thermal storage buried tube stack, the cold storage buried tube stack, the thermal/cold storage water tank and the solar thermal collector through connecting pipes, switch valves and water pumps respectively to realize the heat supply mode that a ground source heat pump is connected with the solar thermal collector in parallel, the heat supply mode that the ground source heat pump is connected with the solar thermal collector in series, the mode that the ground source heat pump supplies heat independently and the cold storage buried tube stack conducts cold storage, and the mode that the ground source heat pump conducts refrigeration independently and the thermal storage buried tube stack conducts thermal storage respectively. The system solves the problem of wind curtailment during wind power generation, solar energy serves as the auxiliary heat source of the heat pump unit, the problem that heat absorption and heat extraction of soil are unbalanced is solved, cross-seasonal solar energy storage is achieved, and the energy efficiency ratio of the heat pump system is increased.

Description

technical field [0001] The invention relates to a solar-ground energy complementary wind energy heat pump system, which belongs to the technical field of heat pumps. Background technique [0002] The use of solar energy and ground energy for heating and air conditioning conforms to the scientific energy use principle of "corresponding temperature and cascade utilization". It is a renewable and clean energy with a huge application market and prospects. [0003] The ground source heat pump system mainly uses the low-enthalpy heat energy stored in the shallow layer of the ground, which is almost unlimited and not subject to geographical restrictions. It belongs to the renewable energy utilization technology and has the advantages of high efficiency, energy saving, low operating cost and good social and environmental protection benefits. However, due to the huge regional differences in my country, the cooling and heating loads of buildings in most areas vary greatly in a year, r...

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to solve the seasonality and intermittency of the solar water heating system and the unbalanced heat absorption and discharge of the soil by the ground source heat pump, and fully utilizes the mature technology and advantages of the existing wind power generation device and the ground source heat pump to provide a solar-ground Complementary wind energy heat pump system

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