| 摘要 |
A first unit (71) of a BS unit (70) comprises a first part (R1), a second part (R2), a third part (R3), a coupling part (J1), a first motorized valve (Ev1), and a second motorized valve (Ev2). The first part (R1) is provided with the first motorized valve (Ev1) and is coupled to an intake gas communicating pipe (12) via a second header (56). The second part (R2) is provided with the second motorized valve (Ev2) and is coupled to a high-low pressure gas communicating pipe (13) via a first header (55). The third part (R3) is coupled to a gas pipe (GP). The coupling part (J1) is connected to the first part (R1), the second part (R2), and the third part (R3), and couples the same. The second motorized valve (Ev2) is disposed in a position higher than the first motorized valve (Ev1). The third part (R3) is connected to the coupling part (J1) at the bottom-most portion (B1). |
