JPH02279809A - Adhesion preventive device for oceanic adhesive organism - Google Patents

Abstract

PURPOSE:To hinder the accumulation of larvae of oceanic adhesive organisms to prevent the adhesion to an inner wall by sticking a sheet planting innumerable capillary substances flowing in the current direction of seawater on the inner wall of a cooling water channel of an industrial facility using the seawater. CONSTITUTION:Capillary substances 7 of synthetic resin such as polypropylene, etc. are thickly planted on a thin synthetic resin sheet 8 to form a sheet-like hair transplant member 91. After that, the hair transplant member 91 is stuck on the whole of the inner wall of a cooling channel 4 by means of synthetic resin adhesives 10. Then, when the seawater 3 is flowed into the cooling channel 4, the innumerable capillary substances 7 bends in the current direction (a) by the current of the seawater 3, and a partition layer (b) of the capillary substances 7 is formed on the whole of the inner wall 6 of the cooling water channel 4. The adhesion of larvae of oceanic adhesive organisms to the inner wall 6 is hindered by the partition layer (b). According to the constitution, the lowering of cooling efficiency in an industrial facility can be prevented without hindering the current of the seawater 3.

Description

Detailed Description of the Invention A1 Objective of the Invention (1) Industrial Field of Application The present invention relates to a device for preventing the adhesion of marine organisms, particularly a device provided on the inner wall surface of a cooling channel in industrial equipment that uses seawater as cooling water. , relates to a device for preventing marine fouling organisms from adhering to its inner wall surface.

(2) Conventional technology As shown in FIG. 12, for example, when Fujibbo F, which is a marine sessile organism, adheres densely to the inner wall surface 6 of the intake side cooling channel 4, the flow of seawater 3 is obstructed and industrial equipment Fujibbo F must be removed because the cooling efficiency of F is reduced, but the removal work requires a lot of effort and time.

The phenomenon of attachment of barnacles occurs when the larvae first attach to the inner wall surface of the cooling channel and grow into shell-like adults.Therefore, in order to prevent the larvae from adhering, cooling Various adhesion prevention measures have been implemented, such as constructing the waterway from stainless steel, synthetic resin, etc., applying oil, wax, etc. to the inner wall surface of the cooling waterway, and making the inner wall surface of the cooling waterway rough.

(3) Problems to be solved by the invention However, depending on the various conventional adhesion prevention means described above,
The current situation is that sufficient effects cannot be obtained.

In view of the above, an object of the present invention is to provide a device capable of preventing marine fouling organisms from adhering to the inner wall surface of a cooling channel by simple means.

B0 Structure of the Invention (1) Means for Solving the Problems The present invention provides a method of forming countless hair-like bodies that wave in the direction of flow of seawater on the inner wall surface of a cooling channel in industrial equipment that uses seawater as cooling water. It is characterized by being planted densely.

(2) Effect As mentioned above, the flow of seawater causes countless hair-like bodies to wave in the flow direction (and a layer of hair-like bodies is formed on the inner wall surface of the cooling channel, and as a result, marine sessile organisms are The layer prevents the cooling water from reaching the inner wall surface of the cooling water channel.

In addition, each hair-like body does not go against the flow of seawater, so
Water intake will not obstruct the flow of seawater.

(3) Example In FIG. 1, the industrial facility 2 constructed on the coast 1 uses seawater 3 as cooling water, and the cooling channel 4 on the water intake side
Water intake 5 faces the sea.

Numerous hair-like bodies 7, which wave in the flow direction of the seawater 3, are densely planted on the entire concrete inner wall surface 6 of the cooling channel 4.

When implanting the hairy body 7, the second. As shown in FIG. 3, a sheet-like flocked member 9I is formed by densely planting synthetic resin bristles 7 such as polypropylene with a thickness of 0.5 m and a length of 100!11 on a thin synthetic resin sheet 8. Using the flocking member 9. is attached to the entire inner wall surface 6 of the cooling water channel 4 using a synthetic resin adhesive 10 (FIG. 4).

When configured as described above, as shown in FIG. 4, the flow of seawater 3 at a flow rate of 2 m/see or higher causes countless hair-like bodies 7 to wave in the flow direction a, thereby causing the inner wall surface of the cooling channel 4 to A stratified layer of hair-like bodies 7 is formed on the entire surface of 6. As a result, larva f of Fujibbo F, a marine sessile
Since they are prevented from reaching the inner wall surface 6 of the cooling water channel 4 by the layer, adhesion of Fujibbo F to the inner wall surface 6 is prevented.

Moreover, since each hair-like body 7 does not go against the flow of seawater 3, the flow of seawater is not obstructed when water is taken in.

Even if the larva f enters between the hair-like bodies 7, attaches to the synthetic resin sheet 8, and grows into an adult, in that case, the flocking member 9I should be peeled off from the inner wall surface 6 of the cooling channel 4 and a new one should be replaced. Since all you have to do is replace it with ``Fujibbo F'', the removal work of Fujibbo F is extremely easy.

Fifth. FIG. 6 shows a modification of the sheet-like flocked member 9z,
Each hair-like body 7 is waved.

When formed in this way, the ability of each hair-like body 7 to flutter due to the flow of seawater 3 is improved.

7th. FIG. 8 shows another modification in which the flocked member 93 is formed into a tile shape. When formed in this way, the flocked member 9. The workability of pasting is improved.

9th. FIG. 10 shows yet another modification of the sheet-like flocked member 94, in which a large number of pile-like members 11 are erected on the synthetic resin sheet 8 at predetermined intervals.

With this configuration, as shown in FIG. 11, a vortex is generated downstream of the pile-like object 11 in the flow of seawater 3, and the vortex prevents the larva f from stagnation.
The adhesion prevention effect becomes remarkable.

In the above embodiment, the prevention of adhesion of Fujibbo F was described, but the hair-like body 7 also has the effect of preventing the adhesion of marine sessile organisms such as mussels and seaweed.

Further, as each hair-like body 7 is swayed by the flow of seawater, floating objects such as dust are repelled, so that adhesion of the floating objects to the inner wall surface 6 can also be prevented.

In addition, the above-mentioned various flocking members may be installed in the cooling waterway on the drainage side.Furthermore, in the cooling waterway, Fujitbo easily adheres to places where the temperature of seawater is high or where the flow of seawater is slow, so The hair-like body may be selectively implanted. Furthermore, the hair-like bodies may be directly planted on the inner wall surface of the cooling channel.

C0 Effects of the Invention According to the present invention, the hair-like bodies can prevent marine fouling organisms from adhering to the inner wall surface of the cooling channel, and the structure is simple, the manufacturing cost is low, and the construction is easy. The above-mentioned adhesion prevention device can be provided.

[Brief explanation of drawings]

1 to 4 show an embodiment of the present invention, FIG. 1 is an enlarged schematic view of the main part of industrial equipment equipped with an anti-adhesion device, and FIG. 2 is a plan view showing a first example of a flocking member. Fig. 3 is a partially enlarged and broken view of Fig. 9 in the direction of the arrow X-X, Fig. 4 is an explanatory diagram of the action, and Fig. 5
The figure is a plan view showing a second example of the flocking member, FIG. The figure is a partially enlarged view taken along the line X-X in FIG. 9, a plan view showing the fourth example of the flocking member, and FIG. visual view,
FIG. 11 is an explanatory diagram of the operation, and FIG. 12 is an explanatory diagram showing the state of attachment of Fujibuki to the inner wall surface of the cooling channel. a...Flow direction, F...Fujibbo (marine sessile organisms)
, f...larva, 2... industrial equipment, 3... seawater, 4
...Cooling channel, 6...Inner wall surface, 7...Ciliary body

Claims (1)

[Claims] A device for preventing the adhesion of marine organisms, characterized in that numerous hair-like bodies that wave in the direction of the flow of seawater are densely planted on the inner wall surface of a cooling channel in industrial equipment that uses seawater as cooling water. .