JPH09250347A - Filter for seawater for cooling engine of ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for visually checking the state or the volume of foreign matters such as sand, waste or the like contained in the seawater stayed in a filter for seawater for cooling an engine of a ship without deteriorating strength and safety of the device. SOLUTION: This filter has a filter net 5 between an entry through hole and an exit through hole and a triple structure covering cylinder comprising a glass-made or acrylic-made transparent cylinder 3 having a packing for sealing fluid, a main body 2 which is made strong material such as metal or reinforced plastic and has several or more window holes 6 on the periphery thereof and is integral with the body base, and a soft cushion member 4 which has a shape not interfering with a visual check of the inside through the window holes 5 of the main body 2 and is tightly inserted into a gap between the transparent cylinder 3 and the main body 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter for seawater for cooling a marine engine, the state of foreign substances such as sand and dust contained in seawater pumped from outside the ship, which is accumulated inside the filter. The present invention relates to a filter having such a structure that a quantity can be visually inspected without impairing the strength and safety of the device.

[0002]

[Prior art]

A. The acrylic cylinder is assembled by sandwiching the acrylic cylinder with the center bolt and nut inside the acrylic cylinder so that the inside can be visually inspected. There is no protective cover here. (See FIG. 7) B. The acrylic cylinder is assembled by sandwiching the main body and cover with several long bolts and nuts around the outside of the acrylic cylinder so that the inside can be visually inspected. (See FIG. 8) C. The main body is made entirely of metal, and the cover is bolted on. (See FIG. 9) As described above, A. B. C. These are the three technologies described in section.

[0003]

Among the conventional techniques, A is
Although it is possible to visually inspect the inside, the bolts that are sandwiched are constantly immersed in seawater, so even if a relatively corrosion-resistant material such as stainless steel is used, it cannot withstand corrosion for a long period of time. If it is torn, the main body, cover, and acrylic may be disassembled, which may lead to an accident. The acrylic is not protected and is exposed, so it is rare that the falling metal may be damaged and damaged. There wasn't.

The technique of B has improved countermeasures against corrosion of bolts, but requires special long bolts and is inevitably damaged by collision of solids from the outside. To prevent direct collision of solids from the outside with acrylics, more than ten special long bolts are required. It takes a lot of work to remove the bolts when cleaning the inside, which is a drawback in terms of maintenance.

The technique C has a long safety point because it is entirely made of metal without using a material such as acrylic that is easily damaged, but it has a drawback that it cannot be seen from the outside.

The cooling seawater filter is required to easily and accurately determine an appropriate time for maintenance, and for that purpose, it is inevitable that it can be visually inspected from the outside. At the same time, the bolts will not corrode. The device is highly resistant to external shocks and highly safe. Reduce disassembly and cleaning. In terms of cost and availability, use standard parts as much as possible. We must answer the above challenges.

[0007]

According to the present invention, in order to solve the above-mentioned problems, a transparent cylindrical body 3 made of glass, acrylic or the like and a soft cushion material 4 made of rubber or the like for providing a cushioning action are provided in order from the inside. The body body 2 made of a strong material such as metal or reinforced plastic has a triple structure, and the body body 2 and the soft cushion material 4 have several or more window holes so that the inside condition can be seen from the outside. West,
The packing 11 that is in close contact with the upper and lower end surfaces of the transparent tube 3 has a structure that seals the internal fluid, and the body barrel 2 and the transparent tube 3 and the cover 7 can be fastened with inexpensive commercially available bolts. , It is devised so that it can be performed in a place where it does not come into contact with fluid.

[0008]

The transparent cylinder 3 which is weak against impact is disposed inside and the strong body 2 is disposed outside, and the soft cushion material 4 is interposed between the two, so that the impact received from the outside is absorbed by the impact absorbing action. The transparent cylinder 3 can be protected without being directly transmitted to the transparent cylinder 3. Further, by appropriately determining the hardness of the soft cushion material 4, it is possible to properly receive the pressure from the internal fluid and to deform or rupture toward the outside due to the stress generated in the transparent cylindrical body 3, and to secure the outermost strength. Na body 2
The strength of the transparent cylinder 3 can be reinforced by transmitting the stress to the transparent cylinder 3. Of course, since the soft cushion material 4 and the main body portion 2 have the window holes 6 at several places, the internal state can be easily seen from the outside.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be specifically described below based on the embodiments shown in FIGS. FIG. 1 shows a first embodiment of the present invention. The left side of the center line of the strainer is a cross-sectional structure diagram,
The right side shows the front view.

This filter comprises a main body base 1 made of a strong material such as reinforced plastic or metal, and a main body barrel 2 connected to the upper part.
Thus, the main body 2 is provided with several window holes 6 in the periphery so that the state of foreign matter stuck in the internal meshing net 5 can be visually inspected from the outside.

Inside the main body 2, the packing 11 is brought into close contact with the upper and lower end surfaces, and the lower end has a shape that can be tightly fitted in an annular groove provided in the upper inner edge of the main body base 1.
An acrylic or glass transparent cylinder 3 having a shape that can be inserted into an annular groove on the lower surface of the cover 7 is arranged at the upper end. The gap between the body barrel 2 and the transparent cylinder 3 has a shape that does not prevent visual inspection of the internal state from the window hole 6 of the body barrel 3, for example, the same shape as the window hole 6 of the body barrel 3. A soft cushion material 4 formed of rubber or the like in a cylindrical body having a cutout hole is closely fitted. Further, the soft cushion material 4 such as rubber shown in FIG. 5 can be replaced with one having no notch hole by using a transparent soft vinyl cylinder having the shape shown in FIG. The main body 2 having the window hole 6 and the soft cushion material 4 and the transparent cylinder 3 each having a shape that does not hinder the visual inspection of the inside are integrated into a three-dimensional unit to seal the internal fluid, guarantee the strength against the internal pressure, and from the outside It has the function of preventing damage due to collision with other metal, and visually checking the inside. In addition, the transparent cylinder body 3 and the cover 7
In order to pinch it with, the main body 2 is provided with a plurality of bolt mounting seats at the periphery of the upper end thereof, and the cover 7 is also provided with a bolt mounting seat at a position facing the main body 2 bolt mounting seat. The bolt mounting seats are fastened together with bolts.

The filter mesh 5 provided between the inlet through hole 12 and the outlet through hole 13 has a circular small hole having an average diameter of about 2 to 3 mm, although there is no particular limitation. In this embodiment, as shown in FIG. 3, the filter mesh 5 is inserted into the container in a plane V shape, and the open end side thereof is the inlet through hole 12.
Face to face. The seawater accompanied by the foreign matter that has flowed in through the inlet through hole 12 has its foreign matter removed by the filter net 5, and flows out through the outlet through hole 13. Foreign matters settle and accumulate inside the V-shape. Further, the total total area of the small holes of the filter net 5 is preferably 1.5 to 2 times or more of the sectional area of the inlet through hole 12.

The state of this accumulation is visually inspected through the window hole 6 of the main body 2, and when the accumulated amount of foreign matter reaches a proper amount,
Remove the tightened bolts, disassemble the device, and clean the inside.

In addition, in the figure, 8 is an air vent attached to the cover, and 9 is an air vent plug.

FIG. 2 shows the second embodiment. The main body is only the main body base 1, and the body portion having the window hole is formed integrally with the cover to form the cap body 14. The bolt mounting seat is provided so as to project from the upper end peripheral edge of the main body and the peripheral edge of the lower end portion of the cap body 14 at a position opposite to these, and is fastened with a bolt so that the cap body 14 and the main body base 1 sandwich the transparent cylindrical body 3. Has been done. This embodiment has the same basic operation as that of the first embodiment, but when the cap body 14 is removed, the internal depth of the main body becomes shallower than that of the first embodiment. There is a feature that cleaning work to remove the can be simplified.

[0016]

As is clear from the above description, the bolt is not in contact with the fluid, and the transparent cylindrical body 3 is protected by the strong main body 2 and the soft cushioning material 4, thus ensuring safety. In addition, the foreign matter accumulated inside can be easily visually inspected from the outside, and proper maintenance can be performed. Therefore, its practical value is extremely large.

[Brief description of drawings]

FIG. 1 is a front view of a left half section showing a first embodiment of a filter according to the present invention.

FIG. 2 is a front view showing the second embodiment of the same.

FIG. 3 is a lateral cross-sectional view taken along the line AA of FIG.

FIG. 4 is a perspective view showing a transparent cylindrical body.

FIG. 5 is a perspective view showing a soft cushion material.

FIG. 6 is a diagram showing an example of a ship equipped with a filter according to the present invention.

FIG. 7 is a diagram showing a conventional technique.

FIG. 8

FIG. 9

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main body base part, 2 ... Main body part, 3 ... Transparent cylinder, 4 ... Soft cushion material, 5 ... Filter mesh, 6 ... Window hole, 7 ... Cover , 8 ...
Air vent, 9 ... Air vent plug, 10 ...
Bolt 11 ... Packing, 12 ... Inlet through hole, 13 ... Outlet through hole, 14 ... Cap body, 1
5 ... Hull, 16 ... Propeller, 17 ... Seawater inlet, 18 ... Filter, 19 ... Pump, 2
0 ... Engine, 21 ... Seawater outlet.

Claims (1)

[Claims] 1. A filter mesh 5 is provided between an inlet through hole 12 and an outlet through hole 13 so as to block a flow path formed inside the main body, and a packing 11 for sealing an internal fluid is provided above and below. A transparent body 3 such as glass or acrylic closely attached to the end face, and a body body 2 formed of a strong material such as metal or reinforced plastic and having several window holes 6 in the periphery are integrally formed with the body base 1. Part of the outer casing cylinder of triple structure in which a soft cushion material 4 having a shape that does not prevent the inside from being visually inspected from the window hole 5 of the main body 2 is closely fitted in the gap between the transparent cylindrical body 3 and the transparent cylindrical body 3. A filter for seawater for cooling ship engines, which is characterized by having.