| 摘要 |
The device for selectively injecting a liquid into a reaction vessel, according to the present invention, comprises: a housing which is connected to the reaction vessel and which has a plurality of inflow passages, through which the liquid is injected, and a plurality of flow paths, which correspond to and communicate with the plurality of inflow passages, respectively; a connection passage which is connected to the plurality of flow paths and which is formed through the inner portion of the housing along the lengthwise direction from the central axis which is separated by a predetermined distance from the plurality of inflow passages; and a flow path selection means including a connection groove, which is incorporated inside the connection passage and connected to the housing in a rotatable manner, and which communicates with one of the plurality of flow paths selected in response to a rotation with respect to the central axis, and an outlet which communicates with the connection groove and the reaction vessel and which discharges the liquid flowing in through the selected flow path and the connection groove into the reaction vessel. |
