FIELD: internal combustion engines.
SUBSTANCE: device for temporary storage of gas and heat, containing at least one high-pressure cylinder (10), several compressors (3, 8, 9), by means of which gas compression (1) is performed, several series-connected compression stages, which contain correspondingly one of compressors (3, 8, 9) and successively connected gas flow circuit (11, 12, 13), and containing several heat accumulators (4, 5, 6) assembling heat accumulators (7), by means of which heat of compression generated during compression of gas (1) is accumulated. High-pressure cylinder (10) is connected to the last of successive stages of compression, in which gas (1) compressed with the help of compressors (3, 8, 9) can be accumulated. Heat accumulator assembly (7) is connected to gas flow circuit (11, 12, 13) of each compression stage. Heat accumulators (4, 5, 6) are arranged in series. Gas flow path (11, 12, 13) of each compression stage passes through heat accumulators (4, 5, 6) in such sequence of thermal accumulators in turn one by one. Preset minimum temperature corresponds to each thermal accumulator (4, 5, 6). Assembly of thermal accumulators (7) has at least one heating device (18, 19, 20), by means of which each heat accumulator (4, 5, 6) is heated to its corresponding minimum temperature, wherein the minimum temperature values corresponding to said heat accumulators (4, 5, 6) are reduced in such sequence of heat accumulators.
EFFECT: invention is aimed at improvement of the device and method so that as much as possible of heat of compression could be accumulated in assembly of heat accumulators.
13 cl, 1 dwg
