| 摘要 |
PURPOSE:To remove ultrafine granular impurities without the need for increasing the pump head and to maintain the function and characteristic intrinsic to a flow passage conducting the above-mentioned liquid by providing a partial flow rate increasing device in the mid-way of the flow passage for a liquid contg. said impurities. CONSTITUTION:The partial flow rate increasing device constituted of, for example, a motor 12 and high-speed rotary disks 13 to be rotated by said motor 12 is provided in the mid-way of the flow passage in which the liquid contg. the ultrafine granular impurities such as iron-component flows. Plural pieces of the disks 13 are provided in the case of the above-mentioned example. Said disks are attached to the output shaft of the motor 12 and rotates at a high speed in the flow of water. A difference in high speed arises between the disks 13 under high- speed rotation and the water in contact therewith and the stickable or depositable dissolved materials such as the iron-component, etc. (ultrafine granular impurities) stick to the surface of the disks 13 in this stage. The above-mentioned impurities are therefore removed without the nead for increasing the pump head and the function and characteristic intrinsic to the flow passage for conducting the liquid contg. said impurities are maintained.
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