公开(公告)号：WO1998002698A1

公开(公告)日：1998-01-22

申请号：PCT/US1997009937

申请日：1997-06-11

Applicant: PHILLIPS PETROLEUM COMPANY

Inventor： PHILLIPS PETROLEUM COMPANY ,  LOW, William, Raymond ,  CAMPBELL, Kenneth, C.

IPC: F25J01/00

CPC classification number: F28F9/22 ,  F25J1/0022 ,  F25J1/0082 ,  F25J1/0085 ,  F25J1/0087 ,  F25J1/0207 ,  F25J1/0244 ,  F25J1/0262 ,  F25J5/005 ,  F25J2250/02

Abstract: In multistage refrigeration compression (10), where liquid refrigerant withdraw from a core-in-shell type heat exchanger (40) connected to a high compression stage (16) is passed to a similar exchanger (70) connected to a lower compression stage (14), liquid level stability in the higher compression stage exchanger (40) is improved by providing an enlarged surge volume. A baffle plate (50) transversing a lower portion of the shell divides the shell into a cooling zone that contains the cores, and a discharge zone that is part of the surge volume. The height of the baffle is selected to facilitate maintenance of at least a minimum functional liquid level in the shell. Liquid refrigerant withdrawn from the discharge zone of the high-stage shell is supplied to the cooling zone of a shell connected to a lower compression stage. The liquid level in the shell is maintained by manipulating flow to liquid refrigerant that is flashed into the cooling zone of the higher compression stage shell.

Abstract translation: 在多级制冷压缩（10）中，从连接到高压缩级（16）的壳内型换热器（40）中抽出的液态制冷剂被传送到与低压级（16）连接的类似的交换器（70） 通过提供增大的浪涌体积来改善较高压缩级交换器（40）中的液位稳定性。 穿过壳体下部的挡板（50）将壳体分成包含芯体的冷却区域和作为浪涌体积的一部分的排放区域。 选择挡板的高度以便于维持壳中的至少最小功能液位。 从高级壳体的排放区域排出的液体制冷剂被供给到连接到较低压缩级的壳体的冷却区域。 通过操纵流入冷却到较高压缩级壳体的冷却区域中的液体制冷剂来维持壳体中的液位。