Double effect geothermal heat pump unit

Abstract

The invention discloses a double-effect ground source heat pump system. An air cooler consists of a surface cooler and an evaporator by series connection on the basis of the original heat pump circulating unit, and an outlet of the surface cooler is sequentially connected with an exhaust valve, a blower and a blow valve. An underground water source water supply pipe is connected with an electric three-way valve in series, one path of the three-way valve is connected with an inlet of the surface air cooler; and the other path is connected with the evaporator. An underground water source water return pipe is connected at the water outlet side of the condenser, and an air return valve is connected with a fresh air valve in parallel and then the two are connected at the inlet side of the surface air cooler. The double-effect ground source heat pump unit can not only carry out the air regulation in transitional season of summer to achieve the energy-saving effect, but can also regulate the system by the ground source energy storage, thereby improving the using effect and the service life of a ground source well. The system can effectively reduce the power consumption of an air-conditioner in summer by the double-effect cooling technology. As the unit is arranged outdoors, a natural refrigerant can be used on the selection of working medium, thereby avoiding the personal injury caused by the leakage of the natural refrigerant.

Description

technical field [0001] The invention belongs to heat pump technology, and in particular relates to a ground source heat pump system for combined cooling and heating. Background technique [0002] For air conditioning and heating systems, most of the split air conditioners are used for cooling in summer, and heating is used for heating in winter. This method needs to consume a large amount of energy. In addition to poor energy conservation and environmental protection, it will also pollute the environment. The indoor environment is also difficult to meet the comfort standard, and the economy is not ideal. At present, the ground source heat pump air conditioning system with the characteristics of energy saving and environmental protection has been successfully used in large office buildings, but compared with the small building buildings, a ground source heat pump air conditioning system is developed to be suitable for small houses or independent houses High-quality heating a...

AI Technical Summary

Problems solved by technology

This method needs to consume a lot of energy. In addition to poor energy conservation and environmental protection, it will also pollute the environment. The indoor environment is also difficult to meet the comfort standard, and the economy is not ideal.

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