WO2024019223A1

WO2024019223A1 - Plasma ballast water treatment apparatus for vessel provided with module-type assembly

Info

Publication number: WO2024019223A1
Application number: PCT/KR2022/014013
Authority: WO
Inventors: 김홍범; 성기찬; 정은익; 안희학; 강혁재
Original assignee: (주)이엠씨
Priority date: 2022-07-21
Filing date: 2022-09-20
Publication date: 2024-01-25
Also published as: KR102502054B1; CN117751072A

Abstract

The present invention relates to a plasma ballast water treatment apparatus for a vessel provided with a module-type assembly, the plasma ballast water treatment apparatus being characterized by comprising: a housing provided with a first port and a second port and open at both ends; a plasma generation unit including a first electrode, which has both ends located at the center of the first port and the second port, respectively, a second electrode, which is formed along the inner circumferential surface of the housing, and a dielectric, which is formed between the first electrode and the second electrode and induces uniform plasma discharge between the first electrode and the second electrode; and a treatment means that includes a gas injection part for injecting a reaction gas from the outer circumferential surface on the first port side of the housing toward the inner space of the housing and a plasma discharge part communicating with the inner space of the housing along the outer circumferential surface of the housing and discharging, to the outside of the housing, plasma flame that has reacted with the reaction gas between the first electrode and the second electrode. The plasma ballast water treatment apparatus is a module type and makes it possible to treat ballast water of various capacities in both small and medium-sized vessels.

Description

Marine plasma ballast water treatment device with module-type assembly

The present invention relates to a plasma ballast water treatment device for ships equipped with a module-type assembly, and more specifically, to a module-type assembly that enables treatment of ballast water of various capacities across small, medium and large ships. It relates to a plasma ballast water treatment device for ships.

Due to the nature of ships that travel long distances at sea, the water treatment process carried out within the ship has the potential risk of causing environmental pollution depending on the quality of the treated water and at the same time causing ecosystem disturbance through intercontinental movement.

Water resources used or discharged from ships can be broadly classified into the following three categories.

That is, it is ship ballast water, water supply within ships through fresh water generators, and cleaning water used in scrubbers, which are air pollution reduction devices.

Among these, ballast water refers to water filled in the ballast water storage space within a ship or discharged into the sea to maintain the level and center of gravity of the ship.

When heavy cargo is loaded on a ship, it increases buoyancy by increasing the specific gravity of air, and on light ships that have unloaded cargo, it increases the specific gravity of ballast water using seawater to reduce buoyancy and increase stability.

However, seawater used as ballast water on each coast may flow into ships untreated and serve as a medium for spreading alien species.

In particular, recent developments in shipbuilding and navigation technology have shortened ship operating times, allowing most ships to navigate various regions and at the same time increasing the possibility of survival of microorganisms in ballast water, such as organisms or pathogens in specific sea areas. This causes side effects that disturb the environment and ecosystem of other sea areas transported through the ballast water inside the ship.

It is estimated that more than 10 billion tons of ship ballast water is moved around the world every year, and the movement of species in ballast water between countries has been shown to not only disrupt the ecosystem but also cause significant damage to other commercial activities, resources, and coastal industries.

As problems caused by ship ballast water continued to appear, in 1992, the United Nations Conference on Environment and Development (UNCED) created mandatory provisions related to the discharge of ballast water to prevent the spread of non-native organisms. A catalog was requested from the International Maritime Organization (IMO).

IMO requested discussion on ballast water management provisions from its Marine Environmental Protection Committee (MEPC), and at the IMO Diplomatic Conference in February 2004, the “International Framework for the Control and Management of Ships’ Ballast Water and Sediment” was established. Convention” was adopted and the announcement requirements of the convention were met on September 8, 2016, and the convention entered into force on September 8, 2017.

When this agreement on ballast water was first proposed, it was classified into D-1, which allows exchange of ballast water in sea areas more than 200 miles away, and D-2, which carries ballast water treatment facilities, and was applied in 2017 when the agreement came into effect. Afterwards, they were all changed to D-2.

Additionally, in the United States, each state is politically involved in ballast water management, and in particular, California is managing the discharge of ship ballast water with stronger standards than IMO standards, such as collecting invasive species control funds.

It must be discharged in compliance with the IMO D-2 regulations and the effluent standards established by California for ballast water treatment.

In view of the above, devices for sterilizing ballast water using various methods, including Patent No. 10-0797186 (hereinafter referred to as prior art), are known and are being researched and developed.

However, existing sterilization devices, including prior art, adopt the electrolysis method, so there is a problem of extreme power consumption in the case of large ships.

Therefore, there is an urgent need to develop a device that can reduce power consumption and treat ballast water of various capacities across small, medium and large ships.

The present invention was invented to improve the above problems, and provides a marine plasma ballast water treatment device equipped with a module-type assembly that is provided in a module type to enable treatment of ballast water of various capacities across small, medium and large ships. It is intended to provide.

In order to achieve the above object, the present invention includes a housing penetrating at both ends and having a first port and a second port; A first electrode having both ends disposed at the center of the first port and the second port, a second electrode formed along the inner peripheral surface of the housing, and a second electrode formed between the first electrode and the second electrode A plasma generator including a dielectric that induces a uniform plasma discharge between the first electrode and the second electrode; and a gas injection part that injects a reaction gas from the outer peripheral surface of the first port side of the housing toward the internal space of the housing, and which communicates with the internal space of the housing along the outer peripheral surface of the housing and connects the first electrode and the second electrode. To provide a plasma ballast water treatment device for ships equipped with a module-type assembly, characterized in that it includes processing means including a plasma discharge unit that discharges the plasma flame reacted with the reaction gas between electrodes to the outside of the housing. You will be able to.

Here, a first connecting means provided at both ends of the housing and formed along the edges of each of the first port and the second port and connecting the housing and an adjacent housing to each other, the first electrode and the second electrode. It further includes a second connection means that electrically connects the electrode to the power supply provided on one side of the housing and electrically connects the power supply to the first and second electrodes of the housing adjacent to the housing. In addition, when the housing and the adjacent housing are connected to each other by the first connecting means, ballast water passes between the first electrode and the second electrode.

At this time, a plurality of housings built into the ballast tank or ballast water transfer pipe are arranged in parallel, and the first electrode built into each of the plurality of housings is electrically connected to the supply device, and a plurality of housings arranged in parallel The number of housings is characterized in that it can be added or subtracted.

In addition, the gas injection unit includes a plurality of support ribs that protrude radially along the outer peripheral surface of the housing, penetrates the plurality of support ribs and communicates with the internal space of the housing, and is connected to the housing from the plurality of support ribs. an injection hole formed to penetrate the outer peripheral surface at an angle, a check valve mounted on each of the plurality of support ribs and connected to the injection hole, and a check valve connected to the check valve to supply the reaction gas toward the inner space of the housing. It is characterized by including a gas supply source.

In addition, the plasma discharge unit includes a plurality of discharge holes that radially penetrate the dielectric, the second electrode, and an inner peripheral surface of the housing to communicate with an outer peripheral surface of the housing and an internal space of the housing, and the plurality of discharge holes. It is characterized by including a plasma nozzle made of heat-resistant material provided at the end of each hole and mounted along the outer peripheral surface of the housing.

According to the present invention configured as described above, the following effects can be achieved.

First, the present invention has the advantage of significantly improving the convenience of work because the housing, plasma generator, and processing means are all provided in a module type, allowing quick installation and construction.

In addition, the present invention also has the advantage of being able to treat ballast water of various capacities across small, medium and large ships by installing and constructing the number of housings by adding or subtracting them in parallel or in series.

Figure 1 is a partially cut side cross-sectional conceptual diagram showing the overall structure of a ship plasma ballast water treatment device equipped with a module-type assembly according to an embodiment of the present invention.

Figure 2 is a side cross-sectional conceptual diagram showing the overall internal structure of a marine plasma ballast water treatment device equipped with a module-type assembly according to another embodiment of the present invention.

Figure 3 is a plan conceptual diagram showing the actual construction state of a marine plasma ballast water treatment device equipped with a module-type assembly according to another embodiment of the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms.

The examples herein are provided to make the disclosure of the present invention complete and to fully inform those skilled in the art of the scope of the invention.

And the present invention is only defined by the scope of the claims.

Accordingly, in some embodiments, well-known components, well-known operations and well-known techniques are not specifically described in order to avoid ambiguous interpretation of the present invention.

In addition, the same reference numerals refer to the same components throughout the specification, and the terms used (mentioned) in the specification are for explaining embodiments and are not intended to limit the present invention.

In this specification, the singular also includes the plural unless specifically stated in the phrase, and elements and operations referred to as 'including (or, including)' do not exclude the presence or addition of one or more other elements and operations. .

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings that can be commonly understood by those skilled in the art to which the present invention pertains.

Additionally, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless they are defined.

Hereinafter, preferred embodiments of the present invention will be described with reference to the attached drawings.

First, Figure 1 is a partially cut side cross-sectional conceptual diagram showing the overall structure of a ship plasma ballast water treatment device equipped with a module-type assembly according to an embodiment of the present invention.

In addition, Figure 2 is a side cross-sectional conceptual diagram showing the overall internal structure of a plasma ballast water treatment device for ships equipped with a module-type assembly according to another embodiment of the present invention.

In addition, Figure 3 is a plan conceptual diagram showing the actual construction state of a marine plasma ballast water treatment device equipped with a module-type assembly according to another embodiment of the present invention.

The present invention has a structure in which a plasma generator 200 and a processing means 500 are formed in a housing 100 penetrating both ends and having a first port 101 and a second port 102, as shown in FIGS. 1 and 2. Examples may be applied.

The plasma generator 200 includes a first electrode 210 having both ends disposed at the centers of the first port 101 and the second port 102, and a second electrode formed along the inner peripheral surface of the housing 100 ( 220) and a dielectric 230 formed between the first electrode 210 and the second electrode 220 to induce a uniform plasma discharge between the first electrode 210 and the second electrode 220. .

The processing means 500 may include a gas injection unit 510 that injects a reaction gas from the outer peripheral surface of the first port 101 side of the housing 100 toward the internal space of the housing 100.

The processing means 500 communicates with the internal space of the housing 100 along the outer peripheral surface of the housing 100, and the plasma flame reacted with the reaction gas between the first electrode 210 and the second electrode 220 is generated in the housing 100. ) may include a plasma discharge unit 520 that discharges the plasma to the outside of the plasma.

The present invention can be applied to the above-mentioned embodiments, and of course, it is also possible to apply the following various embodiments.

First, looking at the present invention with reference to FIG. 2, the present invention is provided at both ends of the housing 100 and is formed along the edges of each of the first port 101 and the second port 102, and is adjacent to the housing 100. A first connecting means 410 for interconnecting 100 may be further provided.

In addition, the present invention electrically connects the first electrode 210 and the second electrode 220 to a power supply provided on one side of the housing 100, and simultaneously connects the housing 100 adjacent to the housing 100. It may further include a second connection means 420 that electrically connects the first electrode 210 and the second electrode 220 and the power supply.

Here, when the housing 100 and the adjacent housing are connected in series by the first connecting means 410, the ballast water will pass between the first electrode 210 and the second electrode 220 as shown in FIG. 1. will be.

At this time, the housing 100 will be described in more detail later, but it may also be possible to install and construct a plurality of housings arranged in parallel.

Meanwhile, the first connection means 410 includes a first flange 411 extending from the outer peripheral surface of one end of the housing 100 along the edge of the first port 101, and a first flange 411 extending along the edge of the second port 102. It may include a second flange 412 extending from the outer peripheral surface of the other end of the housing 100.

In addition, the second connection means 420 includes a first lead wire 421 electrically connected to the first electrode 210, a second lead wire 422 electrically connected to the second electrode 220, and a second lead wire 422 electrically connected to the first electrode 210. It is electrically connected to the first lead wire 421 and the second lead wire 422 and may include a power supply 423 that supplies power to the first electrode 210 and the second electrode 220.

In addition, the first electrode 210 is connected to the first port 101 and the second port 102 by a spacer 430 so that it can be accurately placed at the center of each of the first port 101 and the second port 102. It is preferable that it is supported at a distance from the side.

Meanwhile, the gas injection unit 510 includes an injection hole 512 formed in a plurality of support ribs 511 radially protruding along the outer peripheral surface of the housing 100, and a check valve mounted on the injection hole 512 ( 513) and an embodiment of a structure including a gas supply source (not shown below) may be applied.

The injection hole 512 communicates with the internal space of the housing 100 through the plurality of support ribs 511, and is formed to penetrate the plurality of support ribs 511 at an angle with respect to the outer peripheral surface of the housing 100.

And, the check valve 513 is mounted on each of the plurality of support ribs 511 and connected to the injection hole 512.

Additionally, the gas supply source is connected to the check valve 513 to supply reaction gas toward the internal space of the housing 100.

The reaction gas may be ozone (O3), oxygen (O2), nitrogen (N2), argon (Ar), helium (He), air (Air), or a mixture thereof.

Meanwhile, the plasma discharge unit 520 penetrates radially along the dielectric 230, the second electrode 220, and the inner circumferential surface of the housing 100, and penetrates the outside of the outer circumferential surface of the housing 100 and the internal space of the housing 100. It may include a plurality of discharge holes 521 that communicate with each other.

Additionally, the plasma discharge unit 520 may include a plasma nozzle 522 made of a heat-resistant material that is provided at an end of each of the plurality of discharge holes 521 and mounted along the outer peripheral surface of the housing 100.

Plasma may be discharged from the plasma nozzle 522 to treat ballast water outside the housing 100.

Meanwhile, the present invention may further include a closing cap 110 that closes the first port 101 and the second port 102 so that the housing 100 is connected to the external power supply 430.

A finishing flange 111 extends along the edge of the finishing cap 110, a first flange 411 extending from the outer peripheral surface of one end of the housing 100 along the edge of the first port 101, and a second port. Each may be contacted and coupled to a second flange 412 extending from the outer peripheral surface of the other end of the housing 100 along the edge of 102.

Electrode support pieces 112 protrude from the inner surface of the closing cap 110 to support both ends of the first electrode 210, respectively.

Here, ballast water is contained in the ballast tank 600 where the housing 100 is disposed, as described above.

A plurality of housings 100 built into the ballast tank 600 or the ballast water transfer pipe are arranged in parallel as shown in FIG. 3, and the first electrode 210 built into each of the plurality of housings 100 is a supply device. It is electrically connected to and the number of the plurality of housings 100 arranged in parallel can be appropriately adjusted depending on the processing capacity and the capacity of the power supply 423.

Meanwhile, for electrical connection with the power supply 423, a cable communication pipe 430 communicating with the closing cap 110 on one side of the pair of closing caps 110 may be further provided, and the cable communication pipe 430 may be provided. A connecting pipe 432 bent and extending from both sides or one side of the distal end may be further provided.

Accordingly, the connector 432 is interconnected with the housing 100 and the connector 432 of the adjacent housing 100, and includes a first lead wire 421 electrically connected to the first electrode 210, and a first lead wire 421 electrically connected to the first electrode 210. It can be seen that the second lead wire 422, which is electrically connected to the second electrode 220, is connected to the power supply 430 through the cable communication pipe 430 and the connector 432.

As described above, the basic technical idea of the present invention is to provide a plasma ballast water treatment device for ships equipped with a module type assembly that is provided in a module type to enable treatment of ballast water of various capacities across small, medium and large ships. can be seen.

And, of course, many other modifications and applications are possible for those skilled in the art within the scope of the basic technical idea of the present invention.

[Explanation of symbols]

100...housing

101...1st port

102...2nd port

110...closing cap

111...Finishing flange

112...electrode support piece

200...Plasma generation unit

210...first electrode

220...First electrode

230...genome

410...First connection means

411...First flange

412...second flange

420...second connection means

421...1st lead wire

422...2nd lead wire

423...power supply

430...cable communication pipe

432...connector

500...processing means

510...gas injection part

511...Support rib

512...injection hole

513...check valve

520...Plasma discharge part

521...Discharge hole

522...Plasma nozzle

600...ballast tank

Claims

A housing penetrating at both ends and having a first port and a second port;

A first electrode having both ends disposed at the center of the first port and the second port, a second electrode formed along the inner peripheral surface of the housing, and a second electrode formed between the first electrode and the second electrode A plasma generator including a dielectric that induces a uniform plasma discharge between the first electrode and the second electrode; and

a gas injection part that injects a reaction gas from the outer circumferential surface of the first port side of the housing toward the inner space of the housing, and which communicates with the inner space of the housing along the outer circumferential surface of the housing and includes the first electrode and the second electrode. A plasma ballast water treatment device for ships with a module-type assembly, characterized in that it includes processing means including a plasma discharge unit that discharges the plasma flame reacted with the reaction gas therebetween to the outside of the housing.
In claim 1,

First connection means provided at both ends of the housing, formed along edges of each of the first port and the second port, and connecting the housing and an adjacent housing to each other;

The first electrode and the second electrode are electrically connected to a power supply provided on one side of the housing, and the power supply is electrically connected to the first electrode and the second electrode of a housing adjacent to the housing. It further includes a second connecting means,

A plasma ballast water treatment device for ships with a module-type assembly, wherein ballast water passes between the first electrode and the second electrode when the housing and the adjacent housing are connected to each other by the first connection means. .
In claim 1,

A plurality of the housings built into the ballast tank or ballast water transfer pipe are arranged in parallel, and the first electrode built into each of the plurality of housings is electrically connected to a supply device, and the plurality of housings arranged in parallel A plasma ballast water treatment device for ships equipped with a module-type assembly whose number can be adjusted.
In claim 1,

The gas injection part,

a plurality of support ribs protruding radially along the outer peripheral surface of the housing;

an injection hole that passes through the plurality of support ribs and communicates with an internal space of the housing, and is formed through the plurality of support ribs at an angle with respect to the outer peripheral surface of the housing;

a check valve mounted on each of the plurality of support ribs and connected to the injection hole;

A plasma ballast water treatment device for ships with a module-type assembly, characterized in that it includes a gas supply source connected to the check valve and supplying the reaction gas toward the internal space of the housing.
In claim 1,

The plasma discharge unit,

a plurality of discharge holes radially penetrating through the dielectric, the second electrode, and an inner peripheral surface of the housing to communicate with an outer peripheral surface of the housing and an internal space of the housing;

A plasma ballast water treatment device for ships with a module-type assembly, comprising a plasma nozzle made of a heat-resistant material provided at an end of each of the plurality of discharge holes and mounted along an outer peripheral surface of the housing.