JPH10121967A - Sea water filter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To clean clogging-up of refuse on a sea water filter without staining hands by arranging a drain chamber positioned on an inlet side of a filter net and a cock for discharging refuse in the drain chamber, in the sea water filter provided in a cooling pipe in which sea water is utilized as cooling water, and provided with the filter net. SOLUTION: During operation of an internal combustion engine 1 for a marine vessel, a Kingston cock 3 arranged on a sea water suction port of a sea water cooling pipe 20 makes in an opening condition. In a sea water filter 4 mounted on a sea water cooling pipe 20 arranged between the Kingston cock 3 and a sea water pump 7, a drain chamber 5 is installed on a lower side of a main body case of an inlet side from a filter net, and is connected to a switching cock 8 arranged upstream from an electrically driven hinge pump 7 through a cock 6. When clogging-up of refuse on the filter 4 is confirmed, the Kingston cock 3 is closed, the cock 6 is opened, and the switching cock 8 is turned to a filter 4 side. After that, the hinge pump 7 is operated, and refuse in the drain chamber 5 is discharged outside a hull automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a seawater strainer provided in a seawater cooling pipe of a marine internal combustion engine or the like.

[0002]

2. Description of the Related Art Seawater cooling pipes for marine internal combustion engines that utilize seawater as cooling water include:
Equipped with a seawater strainer to prevent inhalation of dust in seawater.

FIGS. 3 and 4 show a conventional sea strainer for disassembling the strainer 9 of the sea strainer 4 and cleaning it manually when dust is clogged.

The conventional seawater strainer 4 is provided with a Kingston cock 3 on the inlet side and is provided on the seawater cooling pipe 20 connected to the seawater pump 2 of the marine internal combustion engine 1 on the outlet side. In addition, 7 in FIG. 3 is an electric hilge pump.

In this conventional seawater strainer 4, if the dust in the seawater strainer 4 is clogged, it becomes a resistance against the seawater flow in the middle of the seawater cooling pipe 20, and the flow rate is reduced. There is a problem. Therefore, the strainer net of the seawater strainer 4 is regularly cleaned to prevent clogging.

As shown in FIG. 4, the conventional sea strainer 4 has a structure in which the internal straining net 9 can be visually checked for clogging status by a transparent outer cylinder 10. When cleaning the seawater strainer 4, the center bolt 11 is loosened, the upper lid 12 and the outer cylinder 10 are removed, the strainer 9 is taken out, and the attached dust is washed away. It needs to be removed. There is a problem that it takes time to perform these cleaning operations, and also takes time to remove the removed dust.

An object of the present invention is to provide a seawater strainer which can solve the above problems.

[0008]

SUMMARY OF THE INVENTION The present invention is directed to a seawater strainer provided with a strainer provided in a cooling pipe utilizing seawater as cooling water, wherein the drain chamber and the drain chamber are located on the inlet side of the strainer. It is equipped with a cock for discharging garbage.

According to the present invention, a drain chamber is provided on the inlet side of the strainer of the seawater strainer, and the cock is opened to discharge dust accumulated in the drain chamber.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a piping diagram of a cooling water provided with a seawater strainer according to the present embodiment, and FIG. 2 is a cross-sectional view of the seawater strainer according to the present embodiment.

[0011] The seawater flow in the present embodiment includes:
3 and 4, the seawater cooling pipe 20 is provided by the seawater pump 2 mounted on the marine internal combustion engine 1.
Then, the cooling water (seawater) is sucked in, and after cooling the internal combustion engine 1, the cooling water (seawater) is discharged outboard.

At the seawater inlet of the seawater cooling pipe 20, there is a Kingston cock 3 mounted on the bottom of the ship, and the Kingston cock 3 is open when the internal combustion engine 1 is operating.

A seawater strainer 4 is provided in the seawater cooling pipe 20 between the Kingston cock 3 and the seawater pump 7 of the internal combustion engine.

The seawater strainer 4 includes a strainer net 9, an outer cylinder 10, and a center bolt 1 similar to the conventional seawater strainer shown in FIG.
1, a top lid 12 and a main body case 13 are provided. In addition, a drain chamber 5 communicating with the main body case 13 is mounted below the main body case 13 on the inlet side from the strainer 9.

The drain chamber 5 is provided with a switching cock 8 provided upstream of the electric hilge pump 7 through a cock 6.
It is connected to the. An air vent plug 14 is provided at a portion of the upper lid 12 closer to the entrance than the strain net 9.

In the present embodiment configured as described above, when the seawater strainer 4 is found to be clogged with dust after several days of operation, the kingston cock 3 is closed, and the seawater strainer 4 is vented. The plug 14 is loosened, the cock 6 is opened, and the switching cock 8 of the electric hilge pump 7 is set to the seawater strainer side, and the electric hilge pump 7 is operated. As a result, the dust collected on the inlet side of the seawater strainer 4 (the inlet side from the strainer 9) and the drain chamber 5 is automatically discharged out of the boat.

As described above, in the present embodiment, dust collected in the inlet side of the seawater strainer 4 and the drain chamber 5 can be automatically and reliably discharged to the outside of the ship without soiling the hands. it can.

[0018]

According to the present invention, the provision of the structure described in the claims makes it possible to clean the seawater strainer without clogging dust, thereby reducing the trouble and the cleaning time. Can be achieved.

[Brief description of the drawings]

FIG. 1 is a piping system diagram of a cooling water provided with a seawater strainer according to an embodiment of the present invention.

FIG. 2 is a sectional view of the seawater strainer according to the present embodiment.

FIG. 3 is a piping system diagram of a cooling water provided with a conventional seawater strainer.

FIG. 4 is a sectional view of a conventional seawater strainer.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 marine internal combustion engine 2 seawater pump 3 kingston cock 4 seawater strainer 5 drain chamber 6 cock 7 electric hilge pump 8 switching cock 9 strain net 10 outer cylinder 11 center bolt 12 top lid 13 body case 14 air release plug 20 seawater cooling pipe

Claims (1)

[Claims] A seawater strainer provided in a seawater cooling pipe that uses seawater as cooling water, the seawater strainer having a strainer, wherein a drain chamber located on an inlet side of the strainer and a cock for discharging dust in the drain chamber are provided. A seawater strainer characterized by comprising: