Cryogenic fluid reciprocating compression equipment driven by thermo-acoustic engine

The invention discloses low-temperature fluid reciprocating type compression equipment driven by a thermoacoustic engine, and belongs to the field of fluid machinery, the low-temperature fluid reciprocating type compression equipment comprises the thermoacoustic engine and the low-temperature fluid reciprocating type compression equipment, and opposite double pistons are arranged between the thermoacoustic engine and the low-temperature fluid reciprocating type compression equipment; one ends of the opposed double pistons are movably connected into a compression cylinder of the low-temperature fluid reciprocating compression equipment, and the other ends of the opposed double pistons are movably connected into a resonance tube of the thermo-acoustic engine; and an outlet valve of the compression cylinder is communicated into a cooler of the thermo-acoustic engine. The low-temperature fluid is directly or indirectly introduced into the main cooler and the secondary cooler of the thermo-acoustic engine to drive