| 摘要 |
<p>A throttled fluid mixing device comprises a valve having an axially extending valve casing (2) containing a disc-shaped valve member (3) located axially within said casing and arranged for axial movement relatively to a flared inner wall portion (2C) of said casing which is arranged to widen continuously in a direction away from its upstream end. Axial movement of the valve member (3) serves to throttle the flow of fluid through said casing, and the valve member (3) has, on its downstream side, one or more orifices (3C) from which a second fluid can be introduced into the valve casing (2) immediately on the downstream side of the valve member (3), whereby turbulent flow immediately downstream ofthe valve member (3) is effective to cause mixing of the two fluids. Preferably, the disc-shaped valve member has a domed or radiused frontal face, and, on its rear face, an annular recess (3A) located adjacent the rim of the disc and coupled to the orifice or orifices (3C).</p> |
