KR20170050710A

KR20170050710A - Ballast water filtering equipment

Info

Publication number: KR20170050710A
Application number: KR1020150152583A
Authority: KR
Inventors: 전상익; 김만수; 조태민; 최충영
Original assignee: 삼성중공업 주식회사
Priority date: 2015-10-30
Filing date: 2015-10-30
Publication date: 2017-05-11

Abstract

A ballast water filtration apparatus according to an embodiment of the present invention includes a filter assembly including a plurality of filters for filtering foreign matters of ballast water, a housing including the filter assembly, a cover to which both ends are sealed, And a sealing part connected to the housing while covering the opening, wherein the sealing part includes a connecting part through which the ballast water flows in and out, wherein the opening is formed in the side surface of the housing longer than the length of the filter to draw out the filter can do.

Description

{BALLAST WATER FILTERING EQUIPMENT}

The present invention relates to a ballast water filtration apparatus for a ship.

Ballast water is used to control the weight distribution in marine vessels. The balance of the ship is stably maintained by the ballast water during the operation of the ship.

In general, ballast water is filled in one port and transported elsewhere, where it is discharged to a new port. In this process, marine life in other areas may be introduced into the area, causing rapid change of ecosystem or introduction of harmful bacterial pathogens. To prevent this, the ship is equipped with a ballast water treatment system.

The ballast water treatment system includes a filtration device for filtering foreign matter contained in seawater. A seawater pump is connected to the filtration device, and the seawater filtered by the filter mounted inside the filtration device is transferred to the ballast tank through the electrolytic device and the like.

Particularly, a filtration method using a filter as a treatment method used in a ballast water treatment system is mainly used. As a ship becomes larger, the need to treat a large amount of ballast water in a large ship is increased, A water filtration device is used.

The ballast water filtration system requires periodic maintenance because the foreign substances contained in the seawater may get trapped in the filter holes or the performance may deteriorate. Therefore, many methods have been proposed for a method for more easily maintaining the ballast water filtering apparatus.

SUMMARY OF THE INVENTION The present invention has been made in view of the above technical background, and it is an object of the present invention to provide a ballast water filtration apparatus that can more easily manage the maintenance of the filter installed therein.

The enclosure may include a frame connected to the housing; And a window provided inside the frame.

And an elastic body inserted into the opening and connected to the housing, the elastic body positioned between the housing and the sealing portion.

The hermetically sealed portion may include a lever which is hinged to one side of the housing and is engageable with the housing on the other side.

The filter assembly may include a guide portion connected to upper and lower portions of the plurality of filters and configured to be rotatable in an inner side surface of the housing.

Also, the window may be made of sapphire glass.

In the ballast water filtering apparatus according to the embodiment of the present invention, the filter installed in the ballast water can be replaced easily. Also, it is possible to check the filter periodically very easily.

1 is a block diagram showing a ballast water treatment system.
FIG. 2 is a perspective view illustrating a ballast water filtration apparatus according to an embodiment of the present invention applied to the ballast water treatment system shown in FIG. 1. FIG.
3 is an exploded perspective view of the ballast water filtering apparatus shown in FIG.
4 is a perspective view showing a modified example of the closed portion of the ballast water filtering apparatus shown in Fig.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

In addition, since the sizes and thicknesses of the respective components shown in the drawings are arbitrarily shown for convenience of explanation, the present invention is not necessarily limited to those shown in the drawings.

Also, throughout the specification, when an element is referred to as "including" an element, it is understood that the element may include other elements as well, without departing from the other elements unless specifically stated otherwise.

1 is a block diagram showing a ballast water treatment system.

Referring to FIG. 1, the ballast water treatment system 100 is an apparatus for treating ballast water supplied to a ballast tank 30 installed in a ship or an offshore structure. Offshore structures may include floating petroleum production storage and unloading facilities (FPSO) or semi-submersible semi-rigs.

The seawater is introduced into the ship through the intake pipe 15 by the first pump 10 and then filtered through the ballast water filtration apparatus 50 to remove the foreign matter and the ballast tank 30 through the ballast water supply pipe 35. [ Lt; / RTI >

At this time, some of the seawater (hereinafter referred to as "ballast water") flowing into the ballast tank 30 through the line branched from the ballast water supply pipe 35 is supplied to the sterilizing material supply unit 20 by the second pump 22 Can be supplied.

In the sterilizing material supply unit 20, the ballast water is supplied into a generator for generating a sterilizing material, for example, sodium hypochlorite, and then electrolyzed. The generated sodium hypochlorite can be injected into the ballast water supply pipe 35.

When the sterilizing material is injected into the ballast water supply pipe 35, various kinds of harmful substances contained in the ballast water may be removed and stored in the ballast tank 30. The sterilizing material supply unit 20 may be installed on the ballast water supply pipe 35 so that sodium hypochlorite produced by electrolysis of the ballast water can be directly injected into the ballast water.

Thereafter, the germicidal material contained in the ballast water in the ballast tank 30, for example, sodium hypochlorite, is reduced to sodium chloride by natural reduction characteristics to change into seawater in a natural state, The seawater is discharged to the outside of the ship through the drainage line. In addition, the neutralization section 40 can be installed to more completely reduce sodium hypochlorite, and the ballast water can be more completely reduced to sodium chloride due to the reducing agent supplied from the neutralization section 40.

FIG. 2 is a perspective view illustrating a ballast water filtration apparatus according to an embodiment of the present invention applied to the ballast water treatment system shown in FIG. 1. FIG.

2, the ballast water filtration device 50 may include a housing 55 incorporating a filter assembly 70 (see FIG. 3) and a filter assembly 70 for filtering foreign matter in the ballast water.

The housing 55 may be formed with upper and lower connection portions 54 connected to the water intake pipe 15 (see FIG. 1) and the ballast water supply pipe 35 (see FIG. 1). The housing 55 may be formed in a cylindrical shape. The size of the housing 55 may vary depending on the capacity of the ballast water required in the ship. Both ends of the housing 55 can be sealed with the covers 52 and 53 coupled to each other. The filter assembly 70 can be more easily installed inside the housing 55 at both ends of the housing 55.

The sides or covers 52 and 53 of the housing 55 may include a connecting portion 54 connected to the adjacent pipe of the ballast water filtering device 50. The ballast water flowing through the first connecting portion 54a connected to the intake pipe 15 is filtered by the filter assembly 70 inside the housing 55 so that foreign matter is filtered through the second assembly portion 54a connected to the ballast water supply pipe 35, And may be discharged through the connecting portion 54b. At this time, the foreign matter may be discharged to the outside through another third connecting portion 54c connected to the housing 55. [ The first to fourth connecting portions 54a to 54c can be flanged to the pipes. However, well-known technical matters can be applied to the method of interconnecting the connection portion 54 and the pipe.

The sealing portion 60 may be coupled to the side surface of the housing 55. The sealing portion 60 may be formed to seal the opening 56 formed in the housing 55, which will be described later. The sealing portion 60 may be formed along the longitudinal direction of the housing 50. The closure 60 may include a frame 62 and a window 64.

Through the window (64) of the closure (60), the filter assembly (70) inside the housing (55) can be observed. The window 64 may be a sapphire glass. The size of the sealing portion 60 may be formed such that the filter 73 (see FIG. 3) provided inside the housing 55 can be taken out of the housing 55. Therefore, the filter 73 can be replaced through the sealing portion 60 without removing the covers 52, 53 at both ends of the housing 55. [ The frame 62 of the sealing portion 60 may be made of a material different from that of the housing 55. The housing 55 may be formed of a material other than steel. Accordingly, it is possible to prevent the rust that may occur between the housing 55 and the sealing portion 60. In addition, if the sealing portion 60 is formed of an insulating material, the risk of electric shock can be reduced.

3 is an exploded perspective view of the ballast water filtering apparatus shown in FIG.

3, the filter assembly 70 is received inside the housing of the ballast water filtration device 50. The filter assembly 70 may comprise a plurality of filters 73. The plurality of filters (73) can be fixed to the guide portion (72) at both ends of the filter (73). The guide portion 72 may be formed in a circular shape along the inner surface of the housing 55.

Thus, the filter assembly 70 can be rotated along the inner surface of the housing 55. In addition, the guide portion 72 is formed to be smaller than the inner side surface of the housing 55, and is formed with a minimum distance from the inner side surface of the housing 55. As a result, it is possible to prevent foreign matters from passing through the ballast water between the guide portion 72 and the inside surface of the housing 55.

A plurality of filter holes (73a) may be formed in the plurality of filters (73). The size of the filter hole 73a may be different for each filter 73. [ The filter hole 73a may be formed along the longitudinal direction of the filter 73. [

The covers 52 and 53 at both ends of the housing 55 can be flanged. Therefore, they can be connected to each other by a plurality of bolts and nuts. An opening 56 may be formed in the side surface of the housing 55. As described above, the size of the opening 56 may be such that the filter 73 of the filter assembly 70 can penetrate. The opening 56 in the side surface of the housing 55 may be formed in a rectangular shape along the side surface of the housing 55. A first bolt hole 55a may be formed in a side surface of the opening 56 of the housing 55. [ The housing 55 and the sealing portion 60 can be connected to each other by the connecting means 90 being inserted into the first bolt hole 55a. The connecting means 90 may be a bolt. In this case, a nut may be formed at the position of the first bolt hole 55a on the inner surface of the housing 55. [

The elastic body 80 can be fitted to the outside of the opening 56. The elastic body 80 may have a groove formed in the rim and may be connected to the housing 55 by being fitted along the rim of the opening 56. The elastic body 80 may be formed in a quadrangular shape along the opening 56. The elastic body 80 can increase airtightness between the opening 56 and the sealing portion 60 when the opening portion 56 and the sealing portion 60 are connected to each other to prevent the ballast water from leaking. In addition, the elastic body 80 absorbs impact energy due to an external impact and can prevent the sealing portion 60 from being damaged. The durability of the housing 55 can be increased by protecting the rim of the opening 56 which may be rusted by the ballast water.

The sealing portion 60 includes the window 64 and the second bolt hole 62a may be formed in the frame 62 around the window 64. [ Further, the sealing portion 60 may be formed larger than the opening portion 56. Therefore, the elastic body 80 can be connected to the side surface of the housing 55 while covering the opening 56 in which the elastic body 80 is fitted.

4 is a perspective view showing a modified example of the closed portion of the ballast water filtering apparatus shown in Fig.

4, the sealing portion 60 may be connected to the side surface of the housing 55 to be opened and closed in a door shape. That is, the sealing portion 60 may be connected to the side surface of the housing 55 with a part such as a hinge (not shown). The connection between the side surface of the housing 55 and the sealing portion 60 can be well known in the art.

A lever 63 may be formed on the frame 62 of the hermetically sealed part 60. Therefore, the second bolt hole 62a is not formed in the frame 62. [ The sealing portion 60 can be fixed to the housing 55 through the lever 63. [ In this case, the first bolt hole 55a is not formed around the opening 56. [ Accordingly, since the first bolt hole 55a and the second bolt hole 62a are not formed in the frame 62 of the housing 55 and the sealing part 60, a structural There is an advantage.

Further, the sealing portion 60 formed with the lever 63 can open / close the sealing portion 60 without the necessity of loosening or tightening the plurality of connecting means 90, thus facilitating maintenance.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the following claims. Those who are engaged in the technology field will understand easily.

100: Ballast water treatment system
10: first pump 15: intake pipe
20: sterilizing material supply unit 22: second pump
30: ballast tank 35: ballast water supply pipe
40: neutralization part 50: filtration device
52, 53: cover 54:
54a: first connection portion 54b: second connection portion
54c: third connecting portion 55: housing
55a: first bolt hole 56: opening
60: sealing 62: frame
62a: second bolt hole 63: lever
64: Window 70: Filter assembly
72: guide portion 73: filter
73a: Filter hole 80: Elastic body
90: Connection means

Claims

A filter assembly comprising a plurality of filters for filtering foreign matter in the ballast water;
A housing in which the filter assembly is embedded and a cover for sealing both ends is connected; And
And a connection part connected to the housing and through which the ballast water flows,
On the side surface of the housing,
And an enclosure formed with an opening longer than the length of the filter to draw the filter and connected to the housing to open and close the opening.

The method according to claim 1,
The sealing portion
A frame connected to the housing; And
And a window provided inside the frame.

The method according to claim 1,
And an elastic body positioned between the housing and the sealing portion.

The method according to claim 1,
The sealing portion
And a lever which is hinged to one side of the housing and is engageable with the housing on the other side.

The method according to claim 1,
The filter assembly includes:
And a guide portion connected to upper and lower portions of the plurality of filters and having a shape of an inner surface of the housing, the guide portion being rotatable in an inner surface of the housing.

3. The method of claim 2,
Wherein the window is made of sapphire glass.