Thermal balance ground-source heat pump and use method thereof

Abstract

The invention discloses a thermal balance ground-source heat pump and a use method thereof. The pump is provided with an outdoor fan coil, wherein the outdoor fan coil is connected with a circulating water pump through pipelines and valves; an expansion tank is connected together with a pipeline at the right side of the circulating water pump through a pipeline; and a soil heat exchanger is connected with the circulating water pump through pipelines and valves. A cycle process of the use method of the thermal balance ground-source heat pump is completed in the following way: the temperature of a circulating medium is reduced by exchanging heat with surrounding low temperature soil when passing through an underground vertically-buried single u-shaped pipe, and then the circulating medium flows into the outdoor fan coil; the temperature of the circulating medium is increased by exchanging heat with high temperature air; afterwards, the circulating medium flows into the underground vertically-buried single u-shaped pipe to exchange heat with the surrounding low temperature soil. According to the thermal balance ground-source heat pump and the use method thereof, the limitation of heat storage by utilizing solar energy is avoided, and a new approach is provided for supplying heat by applying a ground-source heat pump in a severe cold area; the comfortableness of indoor temperature is improved; the operating conditions of a heat pump system are improved; the thermal balance ground-source heat pump can be applied to an area with big difference between total annual heat supply volume and total annual heat exhaust volume; and a better operating effect can be obtained.

Description

technical field [0001] The invention belongs to the technical field of heat pumps, and in particular relates to a heat-balanced soil-source heat pump and a use method thereof. Background technique [0002] Heat pump technology is a relatively mature electric heating and cooling technology. The soil source heat pump extracts low-grade heat energy from the soil and converts it into a high-grade heat pump and supplies it indoors to achieve the effect of heating and cooling. [0003] However, if the heat in the soil is continuously extracted and not supplemented, the heat in the soil will be continuously reduced, which will eventually affect the working efficiency of the heat pump. Contents of the invention [0004] The purpose of the present invention is to provide a heat balance soil source heat pump and its use method, which aims to solve the problem that the heat in the soil will be continuously reduced if the heat in the soil is continuously extracted without supplementin...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a heat balance soil source heat pump and its use method, aiming to solve the problem that the heat in the soil is continuously extracted without replenishment, which will lead to the continuous reduction of heat in the soil, which will eventually affect the working efficiency of the heat pump

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