KR20170020646A

KR20170020646A - Pipe shielding catalyst reactor and ballast water treatment system having the catalyst reactor

Info

Publication number: KR20170020646A
Application number: KR1020150114629A
Authority: KR
Inventors: 김형오; 박성호
Original assignee: 선보공업주식회사
Priority date: 2015-08-13
Filing date: 2015-08-13
Publication date: 2017-02-23

Abstract

According to an embodiment of the present invention, there is provided a catalytic reactor for a pipe shield, comprising: a cylindrical housing having a hollow interior, the cylindrical housing including a first housing and a second housing each of which is cut in a radial direction and each has a semi-cylindrical shape; A through hole formed in both end faces of the cylindrical housing for passing the pipe passing through the cylindrical housing in the axial direction of the cylindrical housing; A catalyst inlet formed in the cylindrical housing for injecting a catalyst into the cylindrical housing; And a gas outlet formed in the cylindrical housing to exhaust gas from the cylindrical housing, wherein a welded portion of the pipe passing through the cylindrical housing is located in the cylindrical housing .

Description

TECHNICAL FIELD [0001] The present invention relates to a catalytic reactor for a pipe shield and a ballast water treatment system having the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ship ballast water treatment system, and more particularly, to a catalytic reactor for a pipe shield capable of decomposing ozone gas leaked and a ship ballast water treatment system having the same.

If there are not many people, equipment, goods (collectively referred to as cargo) loaded on the ship, the ship will not sink sufficiently into the water, so it can easily be shaken by small waves. Even if the propeller and rudder are not sufficiently immersed So that they can not be operated efficiently. Therefore, a ship unloading freight is operated in a ballast tank containing seawater, ie, ballast water, in order to maintain balance and stability.

A ship carrying ballast tanks in ballast tanks and arriving at a port in another region or another country discharges the ballast water to the sea of the destination to reduce the weight of the vessel and then load the cargo again. It plays a role of mixing seawater belonging to the sea. Therefore, in order to prevent the risk of destruction of marine pollution and marine ecosystem by mixing seawater in different regions, ship equilibrium water is sterilized and stored in the ballast tanks.

Patent Document 1: Korean Patent Laid-Open Publication No. 2015-0042913 (published on April 22, 2015)

According to an embodiment of the present invention, a ship ballast water treatment system for sterilizing and neutralizing operation can be provided.

According to an embodiment of the present invention, a catalyst reactor for a pipe shield that can prevent leakage of ozone gas by decomposing ozone gas even if leakage occurs in a pipe for transporting ozone gas can be provided.

According to an embodiment of the present invention, there is provided a ship ballast water treatment system comprising: a ballast tank capable of storing ship ballast water flowing from the outside; An ozone generator for generating ozone gas; A sterilizer for sterilizing ship ballast water by injecting the ozone gas into the ballast water flowing from the outside before the ballast water flowing from the outside is stored in the ballast tank; And a neutralizing agent storage part for storing the neutralizing agent and the catalyst reactor for the pipe shield is installed on at least one welded part of each welded part of the pipe for transferring the ozone gas from the ozone generator to the sterilizing part The present invention provides a ship ballast water treatment system.

According to one embodiment of the present invention, the ship ballast water treatment system can effectively sterilize ship ballast water by operating in the sterilization mode and the resterilization and neutralization mode.

According to the embodiment of the present invention, ozone gas can be prevented from being leaked even if leakage occurs in the pipe for transporting the ozone gas, so that the risk to the source can be eliminated.

1 is a view for explaining a ship ballast water treatment system according to an embodiment of the present invention;
2 is a perspective view of a catalytic reactor for a pipe shield according to an embodiment,
3 is a view for explaining the inside of the catalytic reactor of FIG. 2,
4 and 5 are a front view and a side view of the catalytic reactor of FIG. 2,
6 is a perspective view of a gasket according to one embodiment interposed in a housing of a catalytic reactor,
7 and 8 are views for explaining an exemplary configuration of a sterilizing portion according to an embodiment.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In this specification, when an element is referred to as being "above" (or "below", "right", or "left") another element, ) Or it may mean that a third component may be interposed therebetween. Also, in the figures, numerical values such as length, width, thickness, etc. of the components are exaggerated for an effective explanation of the technical content.

Also, in this specification, expressions such as 'upper', 'lower (lower)', 'left', 'right', 'front', 'rear' And it is a relative expression used for convenience of explanation based on the drawings when describing the present invention with reference to the respective drawings.

Where the terms first, second, etc. are used herein to describe components, these components should not be limited by such terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.

In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprise" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. Various specific details are set forth in the following description of specific embodiments in order to provide a more detailed description of the invention and to aid in understanding the invention. However, it will be appreciated by those skilled in the art that the present invention may be understood by those skilled in the art without departing from such specific details. In some cases, it is noted that parts of the invention that are not commonly known in the art and are not largely related to the invention are not described in order to avoid confusion in describing the invention.

1 is a view for explaining a ship ballast water treatment system according to an embodiment of the present invention.

The ship ballast water treatment system according to the present embodiment can kill, for example, organisms present in the ballast water entering using ozone gas. In addition, the ship ballast water treatment system according to the present embodiment can additionally provide a sterilizing structure to kill living things.

The ship ballast water treatment system according to one embodiment includes a central control unit 150, an ozone generator 200, a sterilizing unit 300, a ballast tank 400 capable of storing sterilized ship ballast water, And a neutralizing agent storage unit 500. Here, the neutralizing agent may be any one selected from, for example, a sulfite, sulfur dioxide, sodium hydrogen sulfite, and sodium sulfite, but the neutralizing agent usable in the present invention is not limited thereto.

The ship ballast water treatment system according to one embodiment may operate in a sterilization mode or a resterilization and neutralization mode.

In the sterilization mode, the sterilizing unit 300 can sterilize ship ballast water (ballast water) using ozone gas, and the ballast tank 400 can store sterilized ship ballast water by the sterilizing unit 300.

In the resterilization and neutralization mode, the sterilizer 300 sterilizes the ship ballast water stored in the ballast tank 400 again using ozone gas, and supplies the sterilized ship ballast water to the neutralizer storage 500 ) Is neutralized and then discharged to the outside.

The central control unit 150 according to the present embodiment may receive data from the TRO sensors 410 and 420 and control the operation of each device such as a valve and a pump.

The sterilizing unit 300 according to the present embodiment can effectively remove the organisms present in the ballast water by supplying the ozone gas generated from the ozonizer 200 to the ballast water in the form of ultrafine bubbles. Herein, the term 'ultrafine bubble' means a bubble having a size of several nanometers to several hundreds of nanometers or several micrometers to several hundreds of micrometers. Since the microbubbles are weak in buoyancy, they do not rise easily in the ballast water but move to the inside of the ballast water uniformly, so that the adhesion area and residence time are increased and the killing effect can be maximized.

According to one embodiment, the ballast pump P41 sucks seawater from, for example, seawater directly or from a sea chest (where it normally stores seawater in the ship) to the ballast water inflow main line L41 to provide. The ballast water is supplied to the ballast tank 400 along the main line L41 and the ballast water passes through the sterilizing unit 300 before being supplied to the tank 400. [ The sterilizing unit 300 injects ozone gas into the ballast water inflow main line L41 equipped with the sterilizing structure in the form of ultrafine bubbles, and the organisms present in the ballast water are physically impacted and micro- It can be killed by ozone gas.

The drive water pump P31 sucks seawater from the seed chest and supplies it to the sterilizing unit 300. Although in the present embodiment seawater has been described as being provided from the seed chest to the sterilizing section 300 via line L31 by drive water pump P31, in an alternative embodiment, the ballast water inflow main line L41, A part of the sea water flowing in the line L31 may be branched to the sterilizing unit 300. [

The TRO sensor 410 according to the present embodiment senses the total residual oxidant (TRO) concentration of the ballast water and transmits the sensing result to the central control unit 150.

The central control unit 150 according to the present embodiment receives the TRO concentration sensing result from the TRO sensor 410 and compares the reception result with the pre-stored reference, . As a constitution for controlling the flow rate of the ozone gas, a valve capable of controlling the flow rate which is conventionally known can be used.

For example, when the TRO concentration sensed by the TRO sensor 410 is higher than a reference level, the central control unit 150 allows less ozone gas to flow into the ozone gas inflow line L21. Conversely, when the TRO concentration sensed by the TRO sensor 410 is lower than the reference value, the valve V21 can be controlled so that more ozone gas flows into the ozone gas inflow line L21.

Meanwhile, the central control unit 150 according to the present embodiment injects the TRO sensor 410 and the TRO sensor 420 into the ballast water inflow main line L41 using the TRO concentration sensing results in the resterilization and neutralization mode The amount of neutralizing agent can be controlled. For example, in the resterilization and neutralization mode, the central control unit 150 calculates the amount of neutralizing agent capable of neutralizing the ozone gas contained in the ballast water based on the sensing result of the TRO sensor 420, Off of the valve V51 so that the positive neutralizing agent is injected into the marine ballast water inflow main line L41. Also, in the resterilization and neutralization mode, the central control unit 150 injects the neutralizing agent according to the sensing result of the TRO sensor 420 and determines whether the ballast water is neutralized to meet the standard based on the sensing result of the TRO sensor 410 And if it does not meet the criterion, the amount of the neutralizing agent injected into the ballast water inflow main line L41 can be controlled by controlling the on / off of the valve V51. Thus, the central control unit 150 can adjust the amount of the neutralizing agent based on the total residual oxide (TRO) remaining in the ballast water and the concentration of the total residual oxide (TRO) after neutralization.

The ship ballast water treatment system according to the present embodiment includes an operation of sterilizing ship ballast water (hereinafter referred to as a "sterilization mode") before the ballast water is supplied to the ballast tank 400, ('Resterilization and neutralization mode') in which water is re-sterilized and neutralized and discharged to the outside. For example, the central control unit may control the valves and pumps to allow the present ship ballast water treatment system to operate in sterilization mode or resterilization and neutralization mode. Hereinafter, the sterilization mode and the resterilization and neutralization mode will be described in more detail.

Sterilization mode

In the sterilization mode, the present ship ballast water treatment system performs an operation of pumping and sterilizing ship ballast water to fill the ballast tank 400, and in this process, the ship ballast water filled in the ballast tank 400 is physically impacted Damaged and chemically sterilized (for example, ozone gas).

In the sterilization mode, the operating states of the valves and pumps are as follows, and the opening or closing of these valves may be done manually or automatically by a control device such as the central control unit 150.

Opening valve: V21, V31, V41, V42

Closed valves: V32, V43, V44, V51

Pumps operated: P31, P41

The ballast pump (P41) pumps the ballast water into the ballast water inflow main line (L41). For example, the ballast pump P41 may suck the ballast water directly from the seawater or suck it from the seed chest and provide it to the ballast water inflow main line L41.

On the other hand, the drive water pump P31 sucks the seawater stored in the seed chest and supplies it to the sterilizing unit 300. The sterilizing unit 300 can generate, for example, ozone gas and ultrafine bubbles containing ozone gas inside the ballast water inflow main line L41. The ballast water moving to the ballast tank 400 can be sterilized by the ultrafine bubbles containing ozone gas generated inside the ballast water inflow main line.

In the sterilization mode, the TRO sensor 410 mounted at the rear end of the sterilizing unit 300 can sense the TRO of the ballast water flowing into the ballast water inflow main line L41. The sensing result is provided to the central control unit 150. The central control unit 150 controls the amount of ozone gas supplied to the sterilizing unit 300 based on the sensing result by the valve V21, TRO of vessel ballast water flowing in the main ballast inflow main line is appropriately maintained.

Resterilization and neutralization mode

In the resterilization and neutralization mode, the present ship ballast water treatment system resuscitates and neutralizes the ship ballast water when discharging the ballast water filled in the ballast tank 400 to the outside.

The present ship ballast water treatment system may be configured to operate in such a manner that once the ballast water filled in the ballast tank 400 is discharged, it is once sterilized and neutralized and discharged to the outside.

In the resterilization and neutralization mode, the operating states of the valves and pumps are as follows, and the opening or closing of these valves may be done manually or may be opened or closed by a control device such as central control unit 150 .

Opened valves: V21, V32, V43, V44, V51

Closed valves: V31, V41, V42

Pumps operated: P31, P41

The valve V43 is operated instead of the valve V31 in the resterilization and neutralization mode. That is, it is preferable to supply the ballast tank 400 filled with ballast water from the seed chest to the sterilizing unit 300 because the ballast water supplied through the valve V31 is supplied to the ballast tank 400, And the ballast water stored in the ballast tank 400 is sterilized. In the resterilization and neutralization mode, sterilization is once again performed by the sterilizer 300. However, in order to completely sterilize the sterilization vessel 300, the sterilized vessel equilibrium water stored in the ballast tank 400 is used to introduce ozone gas into the ballast water And injected into the main line L41. In an alternate embodiment, however, in the resterilization and neutralization mode, the drive water pump P31 is operable to pump the ozone gas to the ship using the ballast water stored in the seed chest, without using the ballast water stored in the ballast tank 400. [ It may be injected into the ballast water inflow main line L41. In this case, the valve V32 will be off and the valve V31 will be on.

In the resterilization and neutralization mode, the ballast pump P41 pumps the ballast water filled in the ballast tank 400 and flows into the ballast water inflow main line L41. In the resterilization and neutralization mode, the ballast water traveling along the inside of the ballast water inflow main line L41 is neutralized by the neutralizing agent sterilized by the sterilizing unit 300 and supplied from the neutralizing agent storage unit 500 , And is discharged to the outside of the ship through the valve V44.

The TRO sensor 420 senses the TRO of the ballast water flowing out of the ballast tank 400. The TRO sensor 420 provides the sensing result to the central controller 150 and the central controller 150 controls the neutralizer stored in the neutralizer storage 500 based on the sensing result of the TRO sensor 420, Determines how much to put into the incoming main line L41. When the neutralizer input amount is determined, the central controller 150 inputs the neutralizing agent into the main ballast water inflow main line L41 by the determined input amount.

The TRO sensor 410 senses the TRO of the ballast water after the neutralizing agent is input. The TRO sensor 410 provides the sensing result to the central control unit 150. The central control unit 150 checks whether the ballast water number is neutralized based on the sensing result of the TRO sensor 410, And controls the on / off of the valve V51 to adjust the amount of the neutralizing agent injected into the ballast water inflow main line L41. Thus, the TRO of the ballast water flowing into the ballast water inflow main line L41 can be appropriately adjusted.

1, the ozone gas generated in the ozone generator 200 is transferred to the sterilizing unit 300 through the line L21, so that the ozone gas is introduced into the transfer pipe constituting the line L21, Is always flowing. Since ozone gas is harmful to human body, ozone gas leaks when there is leakage in the welding part of pipe due to various reasons such as ship vibration and pipe aging. Therefore, in an embodiment of the present invention, at least the path from the ozone generator 200 to the sterilizing unit 300 (that is, the line L21 indicated by a bold line in Fig. 1) The catalytic reactor 100 for a pipe shield is installed.

In FIG. 1, only three catalytic reactors 100 for a pipe shield are shown, but this is for simplicity of illustration. Preferably, the catalytic reactor 100 is installed at every welding site of the pipes constituting the line L21 Lt; / RTI >

Hereinafter, an exemplary configuration of the catalytic reactor 100 for a pipe shield will be described with reference to FIGS. 2 to 6. FIG.

FIG. 2 is a perspective view of a catalytic reactor 100 for a pipe shield according to an embodiment, FIG. 3 is a view for explaining the inside of the catalytic reactor, and FIGS. 4 and 5 are a front view and a side view of the catalytic reactor.

Referring to the drawings, a catalytic reactor 100 for a pipe shield according to an embodiment includes a cylindrical housing having a hollow interior. The cylindrical housing is composed of a first housing 10 and a second housing 20 which are cut in a radial direction and each have a semicylindrical shape.

Through-holes through which the transfer pipes (51, 52) for transferring the ozone gas are formed are formed at both end faces of the cylindrical housing. To this end, each of the semicylindrical first and second housings 10, 20 has semicircular openings 14 on both sides thereof. As shown in Figs. 3 and 4, the welding portions 55 of the conveying pipes 51 and 52 are positioned in the cylindrical housing so that the conveying pipes 51 and 52 pass through the cylindrical housing along the through- do.

The inside of the cylindrical housing is hollow, and a catalyst 15 for decomposing ozone gas is filled therein, and the catalyst comes into contact with ozone gas to generate decomposition gas (for example, oxygen). To this end, a catalyst body inlet 11 for injecting the catalyst 15 into the cylindrical housing and a gas exhaust 12 for exhausting the decomposition gas from the cylindrical housing are included. In the illustrated embodiment, the catalyst inlet 11 and the gas outlet 12 are formed in the first housing 10. However, in an alternative embodiment, the inlet 11 and the outlet 12 may be formed in the first housing 10 and the second housing 20, respectively.

In this embodiment, after the catalyst is introduced into the catalyst inlet 11, the inlet 11 is closed by a cap (not shown). On the other hand, the gas exhaust port 12 may be always open for exhausting the decomposition gas. At this time, it is preferable that a mesh net cap (not shown) having a mesh network is attached to the gas exhaust port 12 so that the catalyst is not discharged to the outside of the cylindrical housing.

In this embodiment, the semicylindrical first housing 10 and the second housing 20 are connected to each other by a hinge 25 as shown in Figs. Accordingly, the first housing 10 or the second housing 20 can be rotated around the hinge 25 and separated or brought into close contact with each other. The two housings 10 and 20 are fixed by an arbitrary fixing means (not shown) in a state where the first housing 10 and the second housing 20 are in close contact with each other, thereby forming a cylindrical housing shape as shown in FIG.

In the present embodiment, the first housing 10 and the second housing 10 are disposed between the first housing 10 and the second housing 10 along the joint between the first housing 10 and the second housing 10 and between the through-holes of the cylindrical housing and the conveying pipes 51 and 52 The gasket 30 can be interposed. In this regard, Figure 6 illustrates an exemplary gasket 30 construction in accordance with one embodiment. The gasket 30 includes a region 31 interposed in the close contact portion of the first and second housings 10 and 20 and a region 32 wrapping the transfer pipe and in close contact with the opening portion 14. In one embodiment, the gasket 30 may be integrally formed as a whole.

In one embodiment, manganese oxide, metal Pb, or Pb compound, which is excellent in the degree of decomposition of ozone, may be used as the catalyst 15 to be filled in the cylindrical housing of the catalytic reactor 100 for a pipe shield. In the illustrated embodiment, for example, a copper oxide-manganese dioxide (CuO-MnO2) catalyst can be used.

The catalyst 15 may have a small spherical or pellet shape to facilitate filling in the cylindrical housing. For example, a catalyst in the form of a sphere having a diameter of approximately 3 to 5 mm, or a pellet having a diameter of approximately 3 mm and a length of approximately 15 mm may be used. However, these shapes and sizes are given as an example, and catalysts of various components, shapes and sizes may be used according to specific embodiments.

According to this configuration, when ozone gas flows along the transfer pipes 51 and 52 and leakage occurs at the welded portion 55 due to vibration, shock, and aging in the ship, ozone gas is supplied to the catalyst 15 in the cylindrical housing, It is possible to prevent the situation where the ozone gas is released to the outside of the catalytic reactor 100 and affects the human body.

Now, an exemplary configuration of the sterilizer 300 will be described with reference to FIGS. 7 and 8. FIG.

Referring to the drawings, a sterilizer 300 according to an embodiment of the present invention includes a comb-shaped structure 350, which is an example of a sterilizing structure, inside a ship ballast water inflow main line L41, Respectively.

According to one embodiment, the comb-like structure 350 is mounted in consideration of the position where the ozone gas is injected in the sterilizing unit 300. For example, the comb structure 350 is positioned such that the ozone gas injected by the sterilizer 300 directly collides with the comb structure 350.

The sterilizing unit 300 may be connected to the ozone gas inflow line 312 and the path L31 connected to the ozone gas inflow line L21 to receive ozone gas, A drive water inlet line 317, and a nozzle 340. The inflow lines 312 and 317 and the nozzle 340 are fixed by the fixing plate 315 and disposed in the pipe 311 of the main line L41.

The nozzle 340 receives the ozone gas through the ozone gas inflow line 312 and flows into the drive water (for example, seawater stored in the seed chest) through the drive water inflow line 317, At least a part of the ozone gas flowing through the ozone gas inflow line 312 is melted (hereinafter, referred to as 'dissolved ozone gas') to be sprayed onto the ballast water inflow main line L41, thereby generating ultrafine bubbles .

In an embodiment of the present invention, the nozzle 340 may be arranged such that the drive water is sprayed in a direction parallel to the direction in which the ballast water (sea water, nose water or fresh water) flows. The ozone gas introduced through the ozone gas inflow line 312 is dissolved while being dissolved in the water introduced through the drive water inflow line 317. The ozone gas dissolved in the ozone gas is introduced into the pipe 311 by the nozzle 340, Lt; / RTI > According to one embodiment, ultra-fine bubbles can be generated by the nozzle 340. However, this is illustrative, and the bubble generated by the nozzle 340 does not necessarily need to be an ultrafine bubble.

8A and 8B are views for explaining the comb-like structure 350 according to an embodiment of the present invention. Referring to FIGS. 7 and 8, the comb-like structure 350 according to an embodiment of the present invention may be a multi-layer comb-like structure in which a plurality of comb-like structures are stacked.

The comb-like structure 350 according to an embodiment of the present invention includes a circular ring 354 and a plurality of combs 352 extending toward the center of the circular ring 354. [ Here, the combs 352 may have the shape of a stick, for example. One end of the stick-shaped comb 352 is coupled to the circular ring 354, and the other end extends toward the center of the circular ring 354 as a free end. The free ends of the comb teeth 352 are spaced a certain distance from the center of the circular ring 354, respectively, so that the center of the circular ring 354 is empty.

In the present embodiment, the center of the comb-like structure 350 is a structure in which a portion having the impingement plate 344 through which the ultrafine bubbles of the nozzle 340 flows can be inserted.

According to one embodiment, the impingement plate 344 of the nozzle 340 may be positioned inside the comb-like structure 350, as shown in Figure 8 (b). The position of the nozzle 340 shown in the drawing is illustrative, and it is also possible to configure the nozzle 340 differently. For example, the nozzle 340 may be positioned to penetrate the comb-like structure 350, or the nozzle 340 may be positioned at the front end of the comb-like structure 350 without being inserted into the comb-like structure 350. Also, a nozzle having a shape other than the shape shown in the drawings may be used. The nozzle may be located inside the comb-like structure 350 or may be positioned at the front end of the comb-like structure 350 without being inserted into the comb-like structure 350, even if nozzles of different shapes are used.

The comb-shaped structure 350 according to the present embodiment is configured to receive impact or damage such that the creature contained in the ship equilibrium water collides with the plurality of combs 352 and is physically removed. 8B, an end of the nozzle 340 at which the drive water flows out (that is, where the impingement plate 344 is located) is disposed inside the comb-like structure, The ultrafine bubbles are injected in the direction of radiating 360 degrees in the direction of the circular ring 354 from the inner center of the comb-like structure 350, and the ultrafine bubbles injected in the direction of 360 degrees are injected into the comb- Type structure 350, thereby maximizing the sterilizing effect.

The comb-like structure 350 according to the present embodiment can maximize the effect when the nozzle 340 is used together with the ozone gas and generates ultrafine bubbles. However, since the ozone gas is not used, It will be understood that even when a nozzle in which fine bubbles are not generated is used, the comb-shaped structure 350 according to the present embodiment can effectively remove the organisms contained in the ship equilibrium water.

As described above, although the present invention has been described with reference to the limited embodiments and drawings, the present invention is not limited to the above embodiments. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the present invention as defined by the appended claims. Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the scope of the appended claims, as well as the appended claims.

100: Catalytic reactor for pipe shield
150: Central control unit
200: ozone generator
300: sterilizing unit
400: Ballast tank
500: Neutralizing agent storage unit

Claims

1. A catalytic reactor for a pipe shield,
A cylindrical housing having a hollow interior, the cylindrical housing including a first housing and a second housing each cut in a radial direction and each having a semi-cylindrical shape;
A through hole formed in both end faces of the cylindrical housing for passing the pipe passing through the cylindrical housing in the axial direction of the cylindrical housing;
A catalyst inlet formed in the cylindrical housing for injecting a catalyst into the cylindrical housing;
And a gas outlet formed in the cylindrical housing for exhausting gas from the cylindrical housing,
And a welded portion of the pipe passing through the cylindrical housing is located in the cylindrical housing.

The method according to claim 1,
Wherein the catalyst is a catalyst containing manganese oxide.

The method according to claim 1,
Wherein the catalyst inlet and the gas outlet are formed in the first housing.

The method according to claim 1,
Wherein the catalyst inlet is closed after the catalyst is injected into the cylindrical housing,
Wherein a mesh net cap having a mesh network is attached to the gas exhaust port so that the catalyst is not discharged to the outside of the cylindrical housing.

The method according to claim 1,
Further comprising a gasket interposed between the first housing and the second housing along a joint between the first housing and the second housing and between the through-hole of the cylindrical housing and the pipe.

The method according to claim 1,
Wherein the first housing and the second housing are connected to each other by a hinge connection.

In a ship ballast water treatment system,
A ballast tank capable of storing ballast water introduced from the outside;
An ozone generator for generating ozone gas;
A sterilizer for sterilizing ship ballast water by injecting the ozone gas into the ballast water flowing from the outside before the ballast water flowing from the outside is stored in the ballast tank; And
And a neutralizer storage for storing the neutralizer,
The ship ballast water treatment system according to any one of claims 1 to 6, wherein a catalytic reactor for a pipe shield according to any one of claims 1 to 6 is installed on at least one welded portion of each welded portion of the pipe for transferring ozone gas from the ozone generator .

8. The method of claim 7,
The ship ballast water treatment system includes:
Sterilizing the ballast water flowing from the outside, sterilizing the sterilized ship ballast water in the ballast tank, or operating the ballast tank in the resterilization and neutralization mode to neutralize the ballast water discharged from the ballast tank ,
Sterilizing and neutralizing mode, the sterilizing unit sterilizes the ballast water stored in the ballast tank when discharged, and neutralizes the sterilized ship ballast water by the neutralizing agent stored in the neutralizing agent storage unit system.

8. The method of claim 7,
Wherein the ship equilibrium water treatment system further comprises a central control unit,
In the resterilization and neutralization mode, the central control unit regulates the amount of neutralizer introduced to neutralize the sterilized ship ballast water.