公开(公告)号：EP0436084A1

公开(公告)日：1991-07-10

申请号：EP90120714.2

申请日：1990-10-29

Applicant: SEIKO SEIKI KABUSHIKI KAISHA

Inventor： Kotaka, Fumihiro

IPC: F17C5/06 ,  F17C13/02 ,  F25B9/00 ,  F25B41/04

CPC classification number: F17C13/025 ,  F17C5/06 ,  F17C2205/0326 ,  F17C2221/017 ,  F17C2227/0157 ,  F17C2227/0358 ,  F17C2250/0434 ,  F17C2250/0631 ,  F17C2250/072 ,  F17C2270/0144 ,  F25B9/14 ,  F25B31/004

Abstract: The helium gas compressing apparatus of this invention is constructed in such a manner that the oil separator (5) in the high-pressure gas passage (4) is connected to the low-pressure gas passage (2); that the oil return path having the first (30) and second (31) branch paths is provided between the high- and low-pressure gas passages; that the capillary tube (6) is installed in one of the two branch paths; and that the adjust valve (32) is installed in the other branch path to adjust the pressure difference between the supply gas in the high-pressure gas passage (4) and the return gas in the low-pressure gas passage (2). Because of this construction, the adjust valve (32) can be manipulated from outside to make fine adjustments on the pressure difference or change it to a desired value with ease even during operation of the apparatus, thereby adjusting the refrigerating capability of the helium refrigerating machine and the power consumption of the helium gas compressing apparatus.

Abstract translation: 本发明的氦气压缩装置以高压气体通路（4）内的分油器（5）与低压气体通路（2）连接的方式构成。 具有第一（30）和第二（31）分支路径的返回路径设置在高压气体通道和低压气体通道之间; 毛细管（6）安装在两个分支路径之一中; 并且调节阀（32）安装在另一分支路径中，以调节高压气体通道（4）中的供应气体与低压气体通道（2）中的返回气体之间的压力差。 由于这种结构，调节阀（32）能够从外部进行操作以对压力差进行微调，即使在设备的操作期间也容易将其调整到期望值，从而调节氦制冷机的制冷能力 以及氦气压缩装置的功率消耗。