Energy saving type CO2 double-machine double-level refrigeration multi-split air conditioner system

Abstract

The invention relates to an energy saving type CO2 double-machine double-level refrigeration multi-split air conditioner system. A subcritical compressor, a mixing barrel, a transcritical compressor,a gas storage tank, an intermediate cooler and a heat regenerator are included. The subcritical compressor is connected with the bottom of the mixing barrel through a first gas cooler. The top of themixing barrel is connected with the transcritical compressor. The transcritical compressor is connected with a second gas cooler through an oil separator. The second gas cooler is connected with the gas storage tank. The gas storage tank is connected with two gas inlet pipes of the intermediate cooler through a drying filter. The intermediate cooler is connected with a plurality of air coolers through the heat regenerator. After being connected in parallel, air outlet pipes of the air coolers are connected with the heat regenerator, and the heat regenerator is connected with a gas inlet pipe of the subcritical compressor. The multi-split air conditioner system is combined with the CO2 double-machine double-level refrigeration technology to be applied to the medium-low-temperature field, the double-mode refrigeration principle energy saving design characteristic is adopted, and for the industry field of medium-low temperature environment bins and medium-low temperature refrigeration houses and cold chains, future market application prospects are very wide.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to an energy-saving CO 2 Two-machine two-stage refrigeration multi-line system. Background technique [0002] As the international community pays more and more attention to environmental protection, traditional freon refrigerants have gradually withdrawn from the stage of history, and the environmentally friendly natural working medium CO 2 It will surely lead the development trend of refrigeration and heat pump industry, the existing refrigeration system CO 2 The unit refrigeration capacity is low, which cannot meet the needs of medium and low temperature ring cooling. This patent mainly studies CO 2 Design and application of two-stage refrigeration multi-line compressor system. Contents of the invention [0003] The object of the present invention is to provide an energy-saving CO 2 Two-machine two-stage refrigeration multi-line system to solve the problems e...

AI Technical Summary

Problems solved by technology

[0002] As the international community pays more and more attention to environmental protection, traditional freon refrigerants have gradually withdrawn from the stage of history, and the environmentally friendly natural working medium CO 2 It will definitely lead the development trend of the refrigeration and heat pump industry. The existing refrigeration system CO 2 The unit cooling capacity is low, which cannot meet the needs of medium and low temperature ring cooling. This patent mainly studies CO 2 Design and application of two-stage two-stage refrigeration multi-line compressor system

Images