Buried pipe ground source heat pump system and method using peak power for assisting cold/heat storage

Abstract

The invention discloses a buried pipe ground source heat pump system and method using peak power for assisting cold / heat storage. A buried pipe heat exchanger and a ground source heat pump unit form a cold / heat source side ring loop I, an evaporator and a primary side of a heat exchanger I of the ground source heat pump unit form a heat exchange ring loop II, and a secondary side of the heat exchanger I and a user side form a ring loop III; the evaporator of the ground source heat pump unit and an energy storage water tank form a cold storage ring loop IV; the energy storage water tank and a primary side of a heat exchanger II form a cold / heat release ring loop V; a secondary side of the heat exchanger II and the user side form a ring loop VI; an electric heating device and the energy storage water tank form a heat source side ring loop VII; a condenser of the ground source heat pump unit and a floor heating pipe form a user side ring loop VIII. The system fully utilizes shallow geothermal energy, peak power and electrical energy storage technique, and realizes the most economical air conditioner running mode. The technique solves the problem of cold / heat energy unbalance of underground rock and earth masses of northern dwelling house projects, and can be used as a remedial measure for single heating ground source heat pump projects.

Description

[0001] technical field [0002] The present invention relates to a buried pipe ground source heat pump system (hereinafter referred to as ground source heat pump) that utilizes off-peak electricity to assist cold storage / heat storage, and is mainly used for the research and development of single heating (cooling) systems with dominant heat loads. The design method belongs to the professional engineering technology field of architectural environment and energy application. Background technique [0003] In recent years due to building energy saving, CO 2 With the attention of environmental issues such as emission reduction and improvement of atmospheric smog, ground source heat pump technology using renewable shallow geothermal energy has developed rapidly in the field of building air conditioning. Among them, the buried pipe ground source heat pump technology utilizes the characteristics of the huge heat capacity of the earth and the relatively stable temperature of the unde...

AI Technical Summary

Problems solved by technology

However, for buildings with dominant heat load or only heating in winter, although there are already ground source heat pump composite systems with solar energy, industrial waste heat, and gas boilers as auxiliary heat sources, due to various technical and economic constraints, these composite systems have not been able to Large-scale promotion and application

Images