JPH051319U - Rotating brush for cleaning algae - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a rotary brush for cleaning seaweeds having a large cleaning efficiency and a long life, which is used for an intake channel having a circular cross section. [Structure] A plurality of concentric rows on the brush mounting board 1,
Multiple brushes 2A, 2B, 2C with different lengths and mounting angles
Planted at appropriate intervals.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rotating brush for cleaning algae that is applied to an underwater robot for cleaning an intake channel of a thermal power plant, a nuclear power plant or the like.

[0002]

[Prior Art]

 Blue mussels, barnacles, oysters, and algae adhere to and grow on the intake channel walls of seaside thermal power plants and seaside nuclear power plants, which not only increase the resistance of the cooling water system, but also increase the resistance of the condenser. It causes problems such as adhesion to thin tubes and deterioration of their cooling performance. Therefore, conventionally, an underwater robot for cleaning is used to regularly remove and clean marine organisms such as shell algae in the intake channel using its rotating brush or rotating scraper. 3 to 4 show an example of a rotating brush applied to this type of underwater robot, and a plurality of brushes 2 (8 in the figure) are planted on the brush mounting plate 1 at an equal pitch in the circumferential direction. Has been done. The brushes of the same length are attached to the brush mounting board at the same angle α with respect to the water channel wall surface 3. In the figure, the channel cross section is rectangular and the channel wall surface is flat.

[0003]

[Problems to be solved by the device]

 By the way, some of the intakes of thermal power plants, nuclear power plants, etc. use concrete pipes or steel pipes with a circular cross section. If this type of intake channel is cleaned using a brush with the same mounting angle as shown in Figures 3 to 4, the seaweeds near the center will be left behind. To prevent this, make the underwater robot run repeatedly. Therefore, the cleaning function rate is lowered, and the cleaning life of the brush is shortened due to repeated cleaning of one-side contact and the already cleaned surface.

The present invention has been proposed in view of the above circumstances, and an object thereof is to provide a rotary brush for cleaning seaweeds having a large cleaning efficiency and a long life.

[0005]

[Means for Solving the Problems]

 Therefore, the present invention is characterized in that a plurality of brushes having different lengths and attachment angles are planted at appropriate intervals over a plurality of concentric rows on a brush mounting plate.

[0006]

[Action]

 According to such a configuration, the seaweeds near the center, which are conventionally left behind, are removed and cleaned by the brush on the inner peripheral side of the brush mounting plate.

[0007]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view thereof, and FIG. 2 is a bottom view taken along the line II--II of FIG. In the above figure, the same reference numerals as those in FIG. 3 to FIG. 4 indicate the same members as those in the same figure, respectively. , And the mounting angles are α, β and γ, respectively. . These have optimum dimensions selected according to the radius of curvature of the conduit wall surface 3A. It should be noted that cleaning efficiency can be further improved by disposing brushes having different attachment angles and different lengths on the same circumferential row.

[0008]

[Effect of the device]

 With such a configuration, the seaweeds near the center of the circular cross-section pipe, which were often left behind in the past, are removed and cleaned at the same time, which improves cleaning efficiency and extends the life of the brush.

[0009] In short, according to the present invention, a plurality of brushes having different lengths and attachment angles are planted at appropriate intervals over a plurality of concentric rows on the brush mounting plate, so that the cleaning efficiency is large and the life is long. Since the rotary brush for cleaning the seaweed is obtained, the present invention is extremely beneficial in industry.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a bottom view taken along the line II-II in bottom view 1. FIG.

FIG. 3 is a vertical sectional view showing a side surface of a known rotary brush.

4 is a view taken along the line IV-IV in FIG.

[Explanation of symbols] 1 brush mounting board 2 brush 2A brush 2B brush 2C brush 3 water intake wall surface 3A pipe wall surface α mounting angle β mounting angle γ mounting angle

Claims (1)

[Claims for utility model registration] [Claim 1] A plurality of brushes having different lengths and mounting angles are planted at appropriate intervals over a plurality of concentric rows on a brush mounting board, and a rotary brush for cleaning algae is characterized. ..