Buried pipe ground source heat pump system and method using valley electricity for auxiliary heating/cooling

Abstract

The invention discloses a buried pipe ground source heat pump system and method using off-peak electricity to assist heating / cooling supply, including a buried pipe heat exchanger, a ground source heat pump unit and an electric heating device, the buried pipe heat exchanger and The primary side of the heat exchanger III forms a circulation loop I, and the secondary side of the heat exchanger III forms a circulation loop II with the user end; the buried pipe heat exchanger directly forms a circulation loop III with the user end through the ground source heat pump unit; The tube heat exchanger forms a circulation loop IV through the ground source heat pump unit and the primary side of the heat exchanger I, and the secondary side of the heat exchanger I forms a circulation loop V with the user end; the electric heating device forms a circulation loop V with the primary side of the heat exchanger II Circulation loop VI, the secondary side of heat exchanger II and the user end form circulation loop VII. Combining shallow geothermal energy with the technology and measures of power demand side management, the ground source heat pump with buried pipes is used as the main cold and heat source, and the electric boiler used during the off-peak period is used as the auxiliary heat source, and the end adopts the form of floor radiation for Building cooling / heating.

Description

technical field [0001] The invention relates to a buried pipe ground source heat pump system (hereinafter referred to as ground source heat pump) using off-peak electricity for auxiliary heating / cooling, mainly used for the research and design method of a single heating (cooling) system with dominant heat load , which belongs to the field of architectural environment and energy application engineering technology. Background technique [0002] 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 takes advantage of the huge heat capacity of the earth and the relatively stable underground soil temperature. It releases heat to the soil in summer and absorbs heat from the s...

AI Technical Summary

Problems solved by technology

However, for engineering projects with dominant heat load or only heating in winter, although there have been ground source heat pump composite systems with solar energy, industrial waste heat, and gas boilers as auxiliary heat sources, these composite systems have not been developed due to various technical and economic conditions. Able to scale up applications

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