Solar and ground source heat pump combined energy supply system and operation control method thereof

Abstract

The invention relates to a solar and ground source heat pump combined energy supply system and an operation control method thereof. The solar and ground source heat pump combined energy supply system is technically characterized by comprising a solar heat collecting system, a ground source heat pump system and a buried pipe system and being composed of plate heat exchangers, a pump set and switches. The operation control method of the solar and ground source heat pump combined energy supply system includes the steps of calculating equipment parameters of the solar and ground source heat pump combined energy supply system to construct the solar and ground source heat pump combined energy supply system, and carrying out operation control over the heat collecting process, the heat storing process and the heat supplementing process of the solar and ground source heat pump combined energy supply system. Hot water supply requiring time periods of domestic hot water requiring users are analyzed, and by controlling relevant switches and equipment, solar energy and a ground source heat pump are combined to supply energy; and heat in a solar heat collector can be conveyed into soil through the buried pipe heat exchanger system to conduct the heat supplementing process on the soil during time periods when the domestic hot water requiring users do not need hot water supply, and thus the soil thermal imbalance problem caused by long-term operation of an existing ground source heat pump is solved.

Description

technical field [0001] The invention belongs to the technical field of new energy, in particular to a solar ground source heat pump combined energy supply system and an operation control method thereof. Background technique [0002] With the development of modern industry, the global energy crisis and air pollution problems are becoming more and more prominent, and the traditional fuel energy is decreasing day by day. The field of replacing conventional fossil energy with new, environmentally friendly and renewable energy is constantly expanding, seeking a renewable and efficient High energy supply mode is imminent. Ground source heat pump is a land shallow energy transfer from low-grade heat energy to high-grade heat energy by inputting a small amount of high-grade energy (such as electric energy). It is an economical and effective renewable energy utilization technology and is widely used in northern my country. However, in the cooling and heating cycle throughout the year...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, propose a solar ground source heat pump combined energy supply system and its operation control method, and solve the problem of soil heat imbalance that will be caused by the long-term operation of the existing ground source heat pump

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