Reinforced heat exchange method and apparatus for geothermal pump under ground heat exchanger

Abstract

This invention discloses a forced heat exchange method and device for underground heat exchanger of earth source heat pump, which contains buried pipe system, soil humidity and temperature sensor, water filling pressuring storage system and control circuit. Said invention is filled water to soil around the underground heat exchanger by detecting the soil temperature and humidity when in summer the detected temperature higher than preset value and humidity lower than preset value, and in winter the detected the soil temperature lower then preset value.

Description

technical field [0001] The invention relates to a method for strengthening heat exchange of an underground heat exchanger of a ground source heat pump, and also relates to a device using the method, which belongs to the comprehensive application of geothermal energy and automatic control technology in the field of heating, ventilating and air conditioning. Background technique [0002] Ground source heat pump is a technology that uses the earth as a heat source to air condition buildings. It can be applied to residential and commercial buildings. It can be installed in new buildings or used in existing buildings. It is a sustainable development New technologies for building energy conservation. It works in the natural environment to provide clean, efficient and energy-efficient heating and cooling, a proven high-efficiency technology. Due to its advantages of energy saving and environmental protection, it has been increasingly valued and promoted, and soon became the most r...

AI Technical Summary

Problems solved by technology

Because the heat and humidity characteristics of the soil have a great influence on the ground source heat pump system, the thermal characteristics of the soil are mainly related to the parameters such as the solid particle composition, water content (rate) and thermal conductivity of the soil; when the closed-loop ground source heat pump is operating under cooling conditions It may cause the temperature around the buried pipe to rise, the soil to dry out, and the soil to dry and shrink to form a gap between the pipe and the coil, resulting in an increase in the thermal resistance between the pipe and the soil; The soil freezes due to the temperature drop, forming a phenomenon that the buried pipe is squeezed by the soil due to freezing, which may cause serious consequences such as pipeline rupture and liquid leakage in the pipeline.

Images