Heat-driven refrigeration and power generation integration apparatus

Abstract

The invention provides a device integrating functions of heat-driven refrigeration and power generation which comprises a heat energy engine and a refrigerator. The heat energy engine comprises a circulating pump, a steam generator, a vapor liquid separator, a two-way valve, a three-way valve, a turbine, a generator, a pressure exchanger, a first vapor-liquid heat exchanger, a first condenser, a unit with two mixing canterns, a reservoir and a reheater. The heat energy engine utilizes heat energy to generate high pressure vapor to drive the compression refrigeration and promote the turbine and the generator to generate power. The refrigerator comprises an evaporator, a second vapor-liquid heat exchanger, a pressure exchanger, a second condenser and an expander. The shaft power output of the expander of the refrigerator is used for driving the circulating pump. Working media of the heat energy engine and the refrigerator can be the same or not. Non-azeotropic working media can be adopted for improving the efficiency. The heat driven-refrigeration and power generation integrated device can use a low grade heat source and can be regulated into individual cold supplying system, a cooling and power combined system or an electricity heat and chilled water congenerating system. The heat driven-refrigeration and power generation integrated device has the advantages of high efficiency, small investment, short installation period, low maintaining fee, etc.

Description

technical field [0001] The invention relates to a new type of refrigerator generator device, in particular to a device that utilizes thermal energy to directly drive vapor compression refrigeration and can simultaneously generate electricity and heat. Background technique [0002] The energy consumption of refrigeration and HVAC has already accounted for more than a quarter of the electricity in the whole society. The development of alternative energy sources for refrigeration equipment and the improvement of the energy efficiency ratio of refrigeration equipment are related to the great cause of sustainable development. How to use renewable energy and industrial waste heat in refrigeration technology, directly drive refrigeration equipment with heat energy, and build a joint system of distributed refrigeration and power generation has always been an alternative energy solution that people expect. The emergence of this technology not only saves electricity and fossil fuels, ...

AI Technical Summary

Problems solved by technology

Absorption refrigeration requires a heat source temperature above 120°C, which is only suitable for large projects, with large investment and low efficiency

Adsorption and thermoacoustic refrigeration have low efficiency and immature technology

[0004] Data query found a patent (CA101187509A) on the direct use of thermal energy to realize cogeneration of power generation and refrigeration. This patent uses steam injection to compress the circulating working medium of the refrigerator. In addition to the disadvantage of low efficiency, the heat engine and refrigerant can only use the same A variety of working fluids, which cannot meet the needs of different heat source temperatures and different refrigeration temperatures

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