METHOD FOR OPERATION OF A CRYOGENIC PISTON PUMP Russian patent published in 2022 - IPC F04B37/08 

FIELD: cryogenic technology.

SUBSTANCE: invention relates to the field of cryogenic technology and can be used as part of gasification plants. The method for operation of a cryogenic piston pump is that the working cycle is supplemented with a third stroke and three cycles are performed using two plungers 8, 9. At the first stroke, when the first plunger 8 is stationary at the top dead center (TDC) and the second plunger 9 moves from the TDC to the bottom dead center (BDC), the volume of the cylinder 1 is filled with cryogenic liquid through the intake window 10 from the suction cavity 5 and the cryogenic liquid is displaced under working pressure from the discharge cavity 6 to the consumer. After that, at the second stroke, when the second plunger 9 is stationary in the BDC, the cryogenic liquid is squeezed through the exhaust window 11 from the volume of the cylinder 1 into the discharge cavity 6 by moving the first plunger 8 from the TDC to the BDC. At the third stroke, both plungers 8, 9 are moved together from the BDC to the TDC, returning them to their original position.

EFFECT: invention is aimed at improving the efficiency of the cryogenic piston pump.

1 cl, 2 dwg