Transcritical carbon dioxide heat pump type air conditioning water heater using condensation residual heat

Abstract

The invention relates to a transcritical carbon dioxide heat pump type air conditioning water heater using condensation residual heat, which comprises a compressor, a cooling-medium and water sleeve pipe type heat exchanger, a reservoir, a throttle valve, an indoor finned tube heat exchanger, a sleeve pipe type heat regenerator, a gas and liquid separator and a temperature preserving water tank, wherein a working medium inlet of a cavity between an inner pipe and an outer pipe of the cooling-medium and water sleeve pipe type heat exchanger is connected with a high pressure port of the compressor; carbon dioxide discharged from an working medium outlet enters a low pressure port of the compressor through the cavity between the inner pipe and the outer pipe of the cooling-medium and water sleeve pipe type heat regenerator, the reservoir, the throttle valve, the indoor finned tube heat exchanger, an inner pipe of the heat regenerator and the gas and liquid separator in order; both ends of the inner pipe of the cooling-medium and water sleeve pipe type heat exchanger are connected with the temperature preserving water tank by a water pipe; and the water pipe is provided with a pipeline pump. The cooling-medium and water sleeve pipe type heat exchanger is adopted for recycling the condensation residual heat of a heat pump type air conditioning system,; and the recycled heat is used for preparing domestic hot water, thus the energy utilization rate is not only enhanced, but also the heat pollution of the air conditioning system to the environment is reduced.

Description

technical field [0001] The invention relates to a transcritical carbon dioxide heat pump water heater system capable of preparing domestic hot water by utilizing the condensation heat of an air conditioner, and belongs to the technical field of heat exchange. Background technique [0002] As the use of household air conditioners and water heaters becomes more and more popular, the proportion of required energy consumption to the total energy consumption of society is increasing year by year. When the air conditioner is running in the cooling condition, the condensation heat is directly discharged into the atmosphere, which not only causes serious environmental heat pollution, but also increases the ambient temperature around the condenser, which is not conducive to the heat dissipation of the condenser, resulting in an increase in the condensation temperature, which leads to the operation of the air conditioner unit. Consumption rises. Therefore, recovery of condensation he...

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Problems solved by technology

When the ambient temperature of the evaporator is too low, the efficiency of the unit will drop significantly, and the outlet water temperature of the water heater will not meet the requirements

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