Refrigerator car energy-saving environment-friendly refrigerating system based on engine waste heat recovery

Abstract

The invention discloses a refrigerator car refrigerating system based on engine waste heat recycling. The refrigerator car refrigerating system based on engine waste heat recycling is composed of an engine waste heat temperature differential power generation system and a CO2 refrigerating system; the engine waste heat power generation system comprises an internal combustion engine, an exhaust pipe, a temperature differential power generation module, a storage battery set and a storage battery management control system which are sequentially connected, and the CO2 refrigerating system comprises a compressor, a gas cooler, a temperature differential refrigerating module, a throttling valve and an evaporator which are sequentially connected; and a compressor gas outlet is connected with a gas cooler gas inlet, an evaporator gas outlet is connected with a compressor gas inlet, and the storage battery set is connected with the temperature differential refrigerating module. According to the refrigerator car refrigerating system based on engine waste heat recycling, waste heat of tail gas of the internal combustion engine is recovered through the temperature differential power generation module and converted to electric energy, and the part of electric energy is used by the temperature differential refrigerating module to further cool a refrigerant at a gas cooler outlet; and the refrigerating capacity is increased, the property of the refrigerating system is promoted, oil consumption for driving the compressor is reduced, overall energy efficiency of a refrigerator car is promoted, and carbon emission is reduced.

Description

technical field [0001] The invention relates to engine waste heat recovery and utilization technology, environment-friendly refrigerant technology, and the field of refrigeration and air conditioning, in particular to an energy-saving and environment-friendly refrigerating vehicle refrigeration system based on engine waste heat utilization. Background technique [0002] With the rapid development of my country's economy and the continuous improvement of people's living standards, the volume of road refrigerated transportation in my country has grown rapidly, and the demand for refrigerated vehicles has also increased year by year. Road refrigerated vehicles are mainly mechanical refrigerated vehicles, which generally use vapor compression refrigeration units, which are composed of refrigeration compressors, condensers, throttle valves and evaporators. drive. [0003] Nowadays, energy and environmental issues have become important factors restricting my country's economic an...

AI Technical Summary

Problems solved by technology

But CO 2 The high and low pressure difference of the refrigeration cycle is relatively high, and the throttling loss is large, resulting in lower energy efficiency (COP) compared with conventional refrigeration systems

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