Variable frequency air source heat pump refrigeration and heating hot water triple generation unit

Abstract

The invention discloses a variable frequency air source heat pump refrigeration and heating hot water triple generation unit. The unit comprises a variable frequency compressor, a hot water heat exchanger, a cold-warm heat exchanger and a fin heat exchanger; one end of the variable frequency compressor is in pipe connection with the hot water heat exchanger; an exhaust temperature sensor is mounted between the hot water heat exchanger and the variable frequency compressor; and one end of the hot water heat exchanger is connected with a hot water tank through two pipes, and the other end is inpipe connection with a four-way valve. The unit is a system integrating refrigeration, heating and hot water triple generation as a whole, and prevents mixing of hot water by adopting variable frequency control and living hot water multi-point temperature control. Meanwhile, the system can recover waste heat to heat the hot water during refrigerating in summer to improve the refrigerating energy efficiency and to obtain free hot water, and is used for warming and heating of the hot water through operation of a heat pump mode in winter to achieve the energy-conservation recycling. The unit is simple in operation and quick and convenient to use, can be suitable for different regions, and is small in limitation and wide in application range.

Description

technical field [0001] The invention relates to a unit, in particular to a frequency conversion air source heat pump refrigeration, heating and hot water triple supply unit, which belongs to the application field of heating and refrigeration units. Background technique [0002] At present, a relatively common ultra-low temperature air source heat pump triple supply unit system includes an evaporator, a condenser, a compressor, a four-way valve, and an expansion valve. The four-way valve is connected to the evaporator, condenser, compressor, and expansion valve respectively. The valve one is formed, and forms the loop of replenishing air and increasing enthalpy. The existing unit system has poor energy-saving effect during use, and the energy-saving ability is not strong, so it cannot be used in different regions. The three functions of cooling, heating, hot water and safety cannot be combined, and the utilization rate of resources is not high. Contents of the invention ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a frequency conversion air source heat pump cooling heating heating hot water triple supply unit, which can solve the problem that the existing unit system has poor energy saving effect during use, and the saving ability is not strong, and it cannot be used in different regions.

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