GAS COOLING PLANT Russian patent published in 2003 - IPC

FIELD: cryogenic equipment, particularly for instrumentation cryostatting and gas liquefaction. SUBSTANCE: plant comprises finite cooler with coolant pipeline, additional regenerator, pulse tube, main regenerator, inlet cone, inlet pipeline, inlet magnetic valve, inlet receiver and compressor. All above mentioned components are arranged one-by-another. Outlet cone arranged at pulse tube outlet after main regenerator passes into outlet pipeline, which is ended in outlet magnetic valve. Buffer connection receiver is installed after outlet magnetic valve. Buffer outlet is connected to compressor inlet by gas pipeline. Inlet and outlet magnetic valves are identical. Magnetic valve comprises ring-shaped permanent magnet with integral sealing ring. Round plate made of ferromagnetic material is pressed by magnet attractive force to sealing ring. EFFECT: increased pulses frequency and amplitude resulting in increased plant efficiency as a whole. 3 dwg