A multi-connected injection low-temperature heat pump energy-saving system with ejectors

Abstract

The invention discloses a multi-connected jet low-temperature heat pump energy-saving system with an ejector, which includes a compressor, a four-way valve, a multi-connected outdoor heat exchanger group, and an indoor heat exchanger. The second heat exchanger module and the third outdoor heat exchanger module are connected to one end of the indoor heat exchanger; the first outdoor heat exchanger module and the second outdoor heat exchanger module are connected to the interface C of the four-way valve; The outdoor heat exchanger module three is connected to the interface C of the four-way valve, and a first solenoid valve is arranged between the two; an injector is also included, and the outdoor heat exchanger module three is connected to the inlet end of the injector And there is a second electromagnetic valve between them; the interface D of the four-way valve is connected with the flow-inducing end of the ejector; the input port of the compressor is connected with the diffuser end of the ejector. Making full use of the thermodynamic working principle of the ejector, a unique multi-connected low-temperature heat pump air-conditioning return air boosting function is designed.

Description

technical field [0001] The invention provides a household or commercial multi-connected multi-connected low-temperature heat pump energy-saving device with an ejector, in particular, it relates to a device for increasing the suction pressure of a multi-connected heat pump air-conditioning compressor and reducing the energy consumption of the air-conditioning system installation. Background technique [0002] With the development of society, the application of air conditioners is becoming more and more popular, and the energy saving of air conditioning systems has attracted more and more attention, especially the application of multi-connected air conditioners has become more and more popular. Therefore, how to further reduce the energy consumption of multi-connected air conditioners It is very necessary. Secondly, the existing multi-connected air-conditioning system has high energy consumption and needs to adapt to practical problems such as low ambient temperature condition...

AI Technical Summary

Problems solved by technology

[0002] With the development of society, the application of air conditioners is becoming more and more popular, and the energy saving of air conditioning systems has attracted more and more attention, especially the application of multi-connected air conditioners has become more and more popular. Therefore, how to further reduce the energy consumption of multi-connected air conditioners It is very necessary. Secondly, the existing multi-connected air-conditioning system has high energy consumption and needs to adapt to practical problems such as low ambient temperature conditions as low as -25 degrees. The traditional multi-connected air-conditioning system uses simple air-conditioning compression The machine return air pipe is used to pressurize the return air, which leads to insufficient return air pressure of the multi-connected air conditioning system in low temperature environment, high compression ratio of the compressor and poor refrigeration performance

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