JPH072013Y2 - strainer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a strainer that also serves as a container for accommodating marine organism adhesion preventing lumps.

(Prior Art) The present applicant has previously proposed a marine organism adhesion prevention device for a seawater pipe system for cooling in a ship as shown in FIG.
63-76030). This equipment has a high temperature because the marine organisms settle on the inner surface of the seawater conduit where the bottom paint cannot be applied and the inner surface of the seawater conduit inside the heat exchanger, which prevents the seawater from flowing in and out, and the marine engine is not sufficiently cooled. In order to prevent the engine efficiency from being reduced, a container G made of nylon net is attached to the seawater intake T, a marine organism adhesion preventing mass M is put in this container, and the seawater intake T The strainer S provided in the conduit P connecting the heat exchanger F for lubricating oil and the heat exchanger W for fresh water also accommodates and installs the container G1 made of a nylon net containing the marine organism adhesion preventing mass M. It was

(Problems to be Solved by the Invention) The strainer S was specially manufactured to contain the container G1 made of nylon net.

An object of the present invention is to make it possible to store marine organism adhesion-preventing lumps by partially modifying a conventional strainer.

(Means for Solving the Problem) Therefore, in the present invention, a filter 7 is arranged inside the strainer body 1 having the inflow port 2 and the outflow port 3 so as to face the inflow port, and the outflow port of the filter is disposed. A storage cylinder 8 having a large number of through holes opened from the upper end is hung from the lid 4 of the strainer main body, and the marine organism adhesion preventing mass 9 is stored in the storage cylinder 8. There is a gap 11 between the lower end of and the bottom of the strainer body.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS.

The strainer body 1 is formed in a circular plane shape, has a seawater inlet 2 on the right side thereof and an outlet 3 on the opposite side thereof, and covers an upper end opening with a lid, and the lid 5 is mounted with a bolt 5 and a nut 6. It is fixed to the flange 1a with. Inside the strainer main body 1, a filter 7 made of a wire mesh is fixed between the lid 4 and the bottom of the strainer main body 1 so as to face the inflow port 2, and the inside of the strainer main body 1 is partitioned by this filter. . The filter 7 is a semi-circular plane which is arranged concentrically with the strainer body 1. Inside the strainer main body 1, a bottomed storage cylinder 8 is arranged with an upper end opening in which a large number of through holes are formed on the entire outer peripheral surface, and a marine organism adhesion preventing mass 9 is stored inside. The storage cylinder 8 is arranged concentrically with the strainer, and is located closer to the outlet 3 than the filter 7. The storage cylinder 8 hangs down while being supported by a nut-shaped mounting body 10 screwed into the central portion of the lid 4, and a lower end of the storage cylinder forms a gap 11 between the bottom of the strainer body 1. There is. To make the gap 11 widen the surface area of the storage cylinder 8,
This is because the antifouling agent or the like contained in the marine organism adhesion preventing mass 9 is likely to be eluted together with the seawater passing through the strainer body 1.

The mounting body 10 has a hole 10a formed in the axial center thereof, and the upper end of the hole is covered with a cap 12. By removing the cap 12, the marine organism adhesion preventing mass 9 can be put into the storage cylinder 8.

The operation will be described. Cooling seawater containing marine organisms passes through the seawater conduit from the intake port, enters the strainer body 1 from the inflow port 2, passes through the filter 7, and the storage cylinder 8
From the contacting body with the marine organism adhesion preventing mass 9 to the outflow port 3, and a part of seawater flows out of the gap 11 to the outflow port 3 without hitting. In the marine organism adhesion prevention mass, the trialkyl tin polymer compound used as a color-developing agent is hydrolyzed to release the tin compound and the color-developing agent is water-soluble because sea water is slightly alkaline in sea water. As a result, the surface of the marine organism adhesion preventing mass 9 is consumed and a new smooth surface is retained. The released tin compound prevents the marine life from adhering to the inner surface of the seawater pipe system, and the antifouling agent contained in the marine organism adhesion preventing mass 9 also elutes the slime resistance agent into the seawater to prevent the marine life from growing. It kills adult and floating larvae and epiphytic spores, and prevents the adhesion and reproduction of marine organisms on the inner surface of the seawater pipe system. The marine organism adhesion preventing mass also has the same effect as described above when the marine organism contained in the seawater comes into contact therewith.

(Effects of the Invention) As described above, according to the present invention, the function of accommodating the marine organism adhesion preventing mass can also be combined without significantly changing the structure of the conventional strainer.

[Brief description of drawings]

1 is a sectional view, FIG. 2 is a reduced side view showing a state in which a filter is removed, FIG. 3 is a reduced sectional view taken along line III-III in FIG. 1, and FIG. FIG. 4 is an explanatory view of a marine organism adhesion preventing device for a cooling seawater pipe system previously proposed by. 1 ... Strainer body, 2 ... Inlet, 3 ... Outlet, 4 ...
Lid, 7 ... Filter, 8 ... Storage cylinder, 9 ... Marine organism adhesion preventing mass, 10 ... Mounting body, 11 ... Gap.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location C02F 1/50 E02B 1/00 301 7150-2D

Claims (1)

[Scope of utility model registration request] 1. A storage cylinder in which a filter is disposed inside a strainer body having an inflow port and an outflow port so as to face the inflow port, and a large number of through holes are opened from the upper end on the outflow side of the filter. A strainer in which a body is hung down and a marine organism attachment preventing mass is stored in the storage cylinder, and a gap is formed between the lower end of the storage cylinder and the bottom of the strainer body.