KR102495034B1 - Plasma processing apparatus for ballast water treatment with vortex generation module - Google Patents

Abstract

The present invention relates to a ship ballast water plasma treatment apparatus by using a vortex generation module, and more specifically, to a ship ballast water plasma treatment apparatus by using a vortex generation module, which may generate vortex when the ballast water of a ship is sterilized by using plasma, thereby improving efficiency in sterilization. To this end, the present invention comprises: a housing in a pipe shape, which accommodates a plasma treatment apparatus; a discharge electrode disposed in a rod shape constituting the length along the central shaft of the housing; a grounding electrode provided in a pipe shape to form a concentric circle by using the discharge electrode as the central shaft within the housing; and a plurality of vortex modules which are disposed in the longitudinal direction of the discharge electrode. Therefore, plasma in a gaseous phase may be generated by using bubbles generated in treated water which has passed through the vortex module.

Description

Plasma processing apparatus for ballast water treatment with vortex generation module}

The present invention relates to a ballast water plasma treatment device using a vortex generating module, and more particularly, to a ship using a vortex generating module capable of improving sterilization efficiency by forming vortices when ballast water is sterilized using plasma It relates to a ballast water plasma treatment device.

Ballast water refers to the water that is discharged into the sea after taking sea water to balance the ship and filling it into the ballast water tank of the ship. These waters contain living organisms. The problem with ballast water is that ballast water is basically used as a medium to propagate harmful invasive alien species.

Since most ships sail in various regions, organisms contained in ballast water can travel around the world along the ship's route. The development of shipbuilding and navigation technology shortened the sailing time of ships and, as a result, increased the chances of survival of organisms in ballast water. This causes side effects of disturbing the environment and ecosystem of other sea areas by transporting organisms or pathogens of a specific sea area contained in the ballast water to a completely different sea area by the ship containing the ballast water.

It is estimated that more than 10 billion tonnes of ballast water is moved every year around the world, and problems caused by the cross-border movement of species in ballast water have not only disturbed the ecosystem, but also caused great damage to the coastal industry and other commercial activities and resources.

In 1992, at the United Nations Conference on Environment and Development, the International Maritime Organization (IMO) was requested to prepare compulsory measures regarding the discharge of ballast water to prevent the spread of non-indigenous organisms. IMO requested the Marine Environment Protection Committee under its agency to discuss ballast water management and regulation, and at the IMO diplomatic meeting in February 2004, the “International Convention for the Control and Management of Ships’ Ballast Water and Sediment” was adopted and foreign In order to reduce the movement of organisms, unauthorized discharge of ballast water is prohibited, and ships on international voyages must be equipped with various treatment devices that can kill harmful invasive species in ballast water from 2017 to meet the ballast water discharge conditions. do.

These devices are called ballast water management systems or treatment facilities. Recently, these treatment facility industries are attracting attention as a new shipbuilding equipment business, and they can be supplied to ships only after type approval and test satisfaction approval from the International Maritime Organization and each government.

However, most technologies of these ballast water treatment devices, excluding the chemical injection method, treat aquatic organisms using electrolysis, ozone, and ultraviolet technologies, which are world-wide technologies. The situation is so serious that there are discussions about going back to the old days when chemical agents were injected into ballast water as problems with large enough facilities, frequent replacement of electrode materials and ultraviolet lamps, cost of ozone production, and effects on peripheral devices were gradually discovered. is in

Republic of Korea Patent No. 10-1680522 Republic of Korea Patent No. 10-1643413

The present invention is to solve the above problems, and an object of the present invention is to provide a ballast water plasma treatment apparatus capable of sterilizing ballast water using plasma.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems to be solved by the present invention that are not mentioned here are those of ordinary skill in the art to which the present invention belongs from the following description. will be clearly understandable.

A ballast water plasma processing apparatus using a vortex generating module according to the present invention for solving the above problems is provided in a pipe-shaped housing accommodating the plasma processing apparatus and a rod shape forming a length along the central axis of the housing Including a discharge electrode, a pipe-shaped ground electrode forming a concentric circle with the discharge electrode as a central axis in the housing, and a plurality of vortex modules provided along the longitudinal direction of the discharge electrode, passing through the vortex module It is possible to provide that gaseous plasma is generated through bubbles generated in the water to be treated.

Preferably, the vortex module includes a fixing part fixed to the discharge electrode, a plurality of arm parts formed in a bar shape extending radially around the fixing part, and a spherical vortex sphere provided at an end of the arm part It may be characterized in that it further includes.

Preferably, in the vortex modules adjacent to each other, one vortex sphere may not be located on a straight line with the vortex sphere of the adjacent vortex module.

Preferably, the arm portion of the vortex module may have elasticity in a direction opposite to the flow direction of the water to be treated.

Preferably, the arm portion may be formed to have a different length from neighboring arm portions.

The ballast water plasma treatment apparatus using the vortex generation module according to the present invention has an effect of sterilizing the ballast water by generating plasma using bubbles generated by the vortex.

1 is a perspective view showing the overall structure of an apparatus for plasma processing of ballast water using a vortex generating module according to an embodiment of the present invention.
2 is a partially assembled configuration diagram according to an embodiment of a ballast water plasma processing apparatus using a vortex generating module according to the present invention.
3 shows the structure of a quartz tube and a discharge electrode according to an embodiment of a ballast water plasma processing apparatus using a vortex generating module according to the present invention.
4 shows the structure of a discharge electrode and a vortex module according to an embodiment of a ballast water plasma processing apparatus using a vortex generation module according to the present invention.
5 illustrates a vortex module of a vessel ballast water plasma processing apparatus using a vortex generating module according to an embodiment of the present invention.
6 is a conceptual diagram showing that the water to be treated passing through the vortex hole of the ballast water plasma processing device using the vortex generating module according to an embodiment of the present invention forms vortexes.
7 is an embodiment showing that arm parts are formed to have different lengths in the vortex module of the ship ballast water plasma processing apparatus using the vortex generation module according to the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only the present embodiments make the disclosure of the present invention complete, and those skilled in the art in the art to which the present invention belongs It is provided to fully inform the person of the scope of the invention. And terms used in this specification are for describing the embodiments, and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless otherwise specified in the phrase.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. On the other hand, the drawings and detailed descriptions of configurations and their actions and effects, which can be easily known by those skilled in the art, are simplified or omitted, and will be described in detail focusing on parts related to the present invention.

First, a description of a drawing of a ballast water plasma processing apparatus using a vortex generating module according to the present invention is as follows.

1 is a perspective view showing the overall structure of an apparatus for plasma processing of ballast water using a vortex generating module according to an embodiment of the present invention.

And, FIG. 2 is a partially assembled configuration diagram according to an embodiment of a ballast water plasma processing apparatus using a vortex generating module according to the present invention.

3 shows the structure of a quartz tube and a discharge electrode according to an embodiment of a ballast water plasma processing apparatus using a vortex generating module according to the present invention.

4 shows the structure of the discharge electrode and the vortex module according to an embodiment of the ballast water plasma processing apparatus using the vortex generation module according to the present invention.

In addition, FIG. 5 shows a vortex module of a ship ballast water plasma processing apparatus using the vortex generation module according to an embodiment of the present invention.

In addition, FIG. 6 is a conceptual diagram showing that the water to be treated passing through the vortex hole of the ballast water plasma processing device using the vortex generating module according to an embodiment of the present invention forms vortices.

And, FIG. 7 is an embodiment showing that the length of the arm part is formed differently in the vortex module of the ship ballast water plasma processing apparatus using the vortex generation module according to the present invention.

As shown in FIGS. 1 to 7, the ballast water plasma processing apparatus using the vortex generating module according to the present invention includes a pipe-shaped housing 1 accommodating the plasma processing apparatus, and a center of the housing 1 A discharge electrode 2 provided in a rod shape forming a length along an axis, a pipe-shaped ground electrode 3 forming a concentric circle with the discharge electrode 2 as a central axis in the housing 1, and the It includes a plurality of vortex modules 4 provided along the longitudinal direction of the discharge electrode 2, and gaseous plasma is generated through bubbles generated in the water to be treated that has passed through the vortex module 4. there is.

As shown in FIG. 1, in the present invention, the housing 1 is provided in a pipe shape accommodating a plasma processing device. That is, the housing 1 is provided with an insulated pipe, and can be used by connecting to a ballast water pipe of a conventional international standard.

Next, as shown in FIGS. 1 to 4 , the discharge electrode 2 may be provided in a rod shape forming a length along the central axis of the housing 1 .

Specifically, the discharge electrode 2 may be made of titanium.

In addition, a dielectric material may be coated on the surface of the discharge electrode 2 .

More specifically, it is preferable that diamond is coated with a dielectric material. Diamond, as a dielectric having a higher permittivity than quartz, is chemically vapor deposited on the discharge electrode 2 to become an electrode in water. Conventionally, there was a problem of melting the dielectric in inter-electrode discharge, but diamond has high chemical resistance and excellent durability against high frequency and high pressure, so it is suitable as a dielectric coated on the discharge electrode 2.

The coating thickness of the diamond coated on the discharge electrode 2 is preferably between 10 microns and 15 microns. This is because if the thickness of the coating is too thin, the melting point is low, and if the coating is too thick, the bonding force with the electrode surface is reduced. However, it is not intended to be limited thereto, and may be applied in various thicknesses as needed.

Next, as shown in FIG. 2 , the ground electrode 3 may be provided in a pipe shape forming a concentric circle with the discharge electrode 2 as a central axis within the housing 1 .

Specifically, the ground electrode 3 is made of titanium and may be provided in a form of forming a mesh with a lattice.

In addition, the ground electrode 3 is provided in a form surrounding a dielectric formed in a tubular shape.

That is, the ground electrode 3 is a tube made of titanium material surrounding the dielectric tube, and may be provided as a mesh tube made of a grid as a whole.

In addition, as shown in FIG. 3, the dielectric tube is provided as a quartz tube 32, and the water to be treated flows inside the tube.

The reason why the dielectric tube is made of the quartz tube 32 is that the dielectric constant of the quartz tube 32 is different from diamond, which is the dielectric of the discharge electrode 2, and has a higher dielectric constant than other dielectric materials. In addition, among the plasma active species generated from the ground electrode 3, it is to facilitate the transmission of particulate ultraviolet rays to be irradiated in water. There is an advantage of speed, and the flowing ballast water itself becomes a dielectric and acts as a dielectric barrier to stabilize the generation of plasma.

That is, in the present invention, the dielectric of the discharge electrode 2 is made of diamond, the dielectric of the ground electrode 3 is made of a quartz tube 32, and the water to be treated flowing inside the quartz tube 32 is another dielectric. will play a role

In the present invention, the ground electrode 3 is surrounded by the outside of the quartz tube 32 . In addition, a tuned frequency interrupting means may be installed inside the quartz tube 32 to prevent breakage by being tuned to the resonant frequency of the plasma group during plasma generation. In addition, a means for fixing the discharge electrode 2 inside the quartz tube 32, a shock absorbing frame for preventing damage to the quartz tube 32 by absorbing external shock, and an insulated pipe made of an insulator are formed on the outside.

On the other hand, as shown in FIG. 2, the ground electrode 3 is surrounded by the outside of the quartz tube 32, and a mesh network made of titanium is suitable. In addition, although the temperature of the generated plasma is low enough not to exceed 80° C., since sparks may occur, it adheres closely to the wall of the quartz tube 32 and is wrapped around it. When a spark occurs, since the plasma discharge center temperature exceeds 2,000 ° C., rapid melting of the electrode occurs and stable plasma generation cannot be continued.

In addition, as shown in FIG. 2, the ground electrode 3 may be fixed to the ground electrode 3 by having a connector for applying power to the ground electrode 3 in a horseshoe shape at an end, a rod for applying power, and a plate for an electrode contact surface.

In addition, as shown in FIG. 3, a tuned frequency interrupting means is installed inside the quartz tube 32 to prevent breakage of the quartz tube 32 by being tuned to the resonant frequency of the plasma group during plasma generation, which is The sleeve connecting the quartz tube 32 is formed with a frame made of quartz thinner than the thickness of the quartz tube 32 to install a resonant frequency interference frame 23 and a discharge electrode fixing the discharge electrode 2 inside the quartz tube 32. The upper part (41) (21) fixes the discharge electrode (2) by forming a triangular bridge on the circular frame so that there is no resistance to the flow rate.

Outside the quartz tube 32, a configuration to prevent damage to the quartz tube 32 by absorbing external shocks, a vibration protection frame 5 absorbing shocks and an external insulation pipe made of an insulator are configured, and the pipe has plasma A reaction confirmation viewing window (y) may be configured so that the progress and behavioral state can be confirmed by the light emitted during the progress and erasure of the plasma.

Next, as shown in FIG. 4 , the vortex module 4 may be provided in plurality along the length direction of the discharge electrode 2 .

Here, gaseous plasma may be generated through bubbles generated in the water to be treated that has passed through the vortex module 4 .

Specifically, as shown in FIG. 5 , the vortex module 4 may include a fixing part 41 , an arm part 42 and a vortex hole 43 .

The fixing part 41 is formed in a cylindrical shape that surrounds and fixes the discharge electrode 2 .

In addition, the arm part 42 is formed in a bar shape extending radially around the fixing part 41 and may be provided in plurality.

In addition, as shown in FIG. 6, the vortex sphere 43 is formed in a spherical shape fixed to the end of the arm 42, and a vortex is formed at the back of the sphere. That is, when the water to be treated proceeds in one direction, a vortex is formed by the vortex hole 43 and bubbles are generated.

In addition, in the vortex modules 4 adjacent to each other, one vortex sphere 43 is not located on a straight line with the vortex sphere 43 of the adjacent vortex module 4. That is, the vortex spheres 43 of one vortex module 4 are not aligned with the vortex spheres 43 of the neighboring vortex modules 4 and are staggered. This is to make the water to be treated evenly receive resistance as it proceeds, and to increase the efficiency of plasma generation by allowing the water to be treated that has passed through the vortex hole 43 to generate more abundant bubbles in the vortex forming unit (v). is a composition

In addition, the arm portion 42 of the eddy current module 4 may have elasticity in a direction opposite to the flow direction of the water to be treated.

In addition, as shown in FIG. 6 , the arm part 42 is formed to have a different length from the neighboring arm part 42 so that air bubbles can be densely generated.

In addition, it is preferable that the vortex module 4 is provided with an insulator to prevent sparks from occurring.

The vortex module 4 as described above is configured to include a vortex hole 43 that forms resistance to the flow of the water to be treated, which flows along the vortex hole 43 when the water to be treated flows and It is a configuration provided to produce a bubble gaseous plasma by forming a strong vortex in the vortex forming unit (v). The vortex hole 43 generates radicals together with plasma-generating species in the water to induce the death of aquatic microorganisms.

Just because the vortex module 4 is supported on the flow of the water to be treated, a vortex is formed by the flow of the water to be treated passing through the vortex hole 43, and plasma can be generated through bubbles generated at this time. , there is an advantage of saving energy because there is no need to apply a separate rotational force to generate bubbles.

In addition, the arm portion 42 of the vortex module 4 has elasticity in a direction opposite to the flow of the water to be treated, so that bubbles can be generated more smoothly.

Meanwhile, in another embodiment, the discharge electrode 2 may be formed in the form of a multi-divided rod. Each divided module may be fastened to each other in a screw manner to form a single rod.

In another embodiment, the fixing part 41 of the vortex module 4 may include a rod of the discharge electrode 2 extending vertically. That is, the rods of the discharge electrodes 2 extending from the fixing part 41 of the vortex module 4 form one set, and each set is fastened to form one discharge electrode 2, and the vortex module 4 is spaced at regular intervals. It can be provided in a form arranged in . That is, since the discharge electrode 2 has a short length, a female screw portion for connecting the discharge electrode 2 at the top so that a plurality of the vortex modules 4 can be connected and used in order to correspond to the ground electrode 3, At the lower end, a male screw portion for connecting the discharge electrodes 2 is formed and assembled like a multiple assembly completed type of the discharge electrodes 2. That is, the electrode connection female screw part is formed inside the discharge electrode 2 so that the electrode connection male screw part of the other electrode is inserted and fixed, and the electrode connection male screw part is inserted into the electrode connection female screw part of the other electrode, thereby connecting the electrodes. make this happen

In addition, as shown in FIG. 2, the upper end of the discharge electrode power antenna 22 is inserted into the converter sleeve in the resonant frequency interference frame 23, and the power applied from the discharge electrode power application connector 24 is connected.

In addition, since there are many plasma power sources that are already commercially available and all of them can be used by type, various means for connecting the applied power source may be employed, although not included in the present patent.

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the scope of the invention which follows may be better understood. Those skilled in the art to which the present invention pertains will understand that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the claims and equivalent concepts should be construed as being included in the scope of the present invention.

1 : Housing
2: discharge electrode
21: discharge electrode fixing part
22: discharge electrode power antenna
23: resonant frequency interference frame
24: discharge electrode power supply connector
3: ground electrode
31: ground electrode power supply connector
32: quartz tube
4: Vortex module
41: fixed part
42: dark part
43: Vortex
5: Vibration protection frame
y: reaction confirmation window
v: vortex forming part

Claims (5)

delete a pipe-shaped housing accommodating the plasma processing device;
a discharge electrode provided in a rod shape forming a length along the central axis of the housing;
a pipe-shaped ground electrode forming a concentric circle with the discharge electrode as a central axis within the housing; and
Including; vortex modules provided in plurality along the longitudinal direction of the discharge electrode,
The vortex module further includes a fixing part fixed to the discharge electrode, a plurality of arm parts formed in a bar shape extending radially around the fixing part, and a spherical vortex sphere provided at an end of the arm part, ,
Ballast water plasma treatment device using a vortex generation module, characterized in that gaseous plasma is generated through bubbles generated in the water to be treated that has passed through the vortex module. According to claim 2,
Ballast water plasma processing device using a vortex generating module, characterized in that the arm portion is formed to have a different length from neighboring arm portions. According to claim 3,
Ballast water plasma processing apparatus using a vortex generation module, characterized in that in the vortex modules adjacent to each other, one vortex sphere is not located on a straight line with the vortex sphere of the adjacent vortex module. According to claim 4,
Ballast water plasma treatment device using a vortex generation module, characterized in that the arm portion of the vortex module has an elastic force in a direction opposite to the flow direction of the water to be treated.

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