KR20140014913A - System and method for preventing adhesion of marine organism - Google Patents

Abstract

Disclosed are a system and a method for inhibiting attachment of marine organisms. The system for inhibiting attachment of marine organisms comprises: a ballast pump for generating pressure to induce the seawater from a water collecting part to a seawater induction pipe; an electrolysis device for electrolyzing some of the seawater flowing via the seawater induction pipe into a sterilization substance to mix the seawater within the seawater induction pipe with the sterilization substance and to change the mixture into sterilization water; and a sterilization water injection pipe for forming a path to inject some of the sterilization water flowing via the seawater induction pipe into the water collecting part by using the pressure generated by the ballast pump. [Reference numerals] (210) Water collecting part; (230) Filter part; (240) Electrolysis device; (250) TRO sensor part; (260) Seawater tank; (270) Control device

Description

System and method for preventing adhesion of marine organism

The present invention relates to a system and a method for preventing marine biofouling.

The ship maintains equilibrium during ship operation and stores the seawater as tank ballast water in the tank in order to achieve optimum speed and efficiency.

When the ship is unloaded, the weight of the vessel is raised by the reduced weight, and the center of gravity is increased. As a result, the left and right shakes increase, and in severe cases, it can cause a rollover accident. .

In this way, ship ballast water is an essential means for the safety of ship operation, but recently it has been mistaken as a main cause of destruction of marine ecosystem.

This is because exotic species of marine life can disturb and destroy indigenous ecosystems if seawater inflows into the marine equilibrium water from one country to other countries for the transportation of cargo between countries. For reference, according to IMO (International Maritime Organization), more than 5 billion tons of seawater are moving to ship equilibrium each year, which means that about 7,000 kinds of marine life are being transported.

Therefore, interest in ship equilibrium is increasing in order to improve the safety of vessels and improve operational efficiency. In addition, due to the environmental regulations of IMO, the installation of ship ballast water management system Is mandatory.

The ship is also equipped with a Marine Growth Protecting System (MGPS) to prevent marine life from adhering to seawater intakes for the influx of ship ballast water.

However, since the MPGS installed in the seawater inlet is constructed as an independent facility for the ship ballast water treatment system, there is a problem that it increases the processing cost of the ship ballast water and causes system complexity.

Patent Document 1: Korean Patent Publication No. 2010-0064768 (Marine Organism Attachment Prevention System and Seawater Supply System Using the Same)

The present invention is to provide a system and a method for preventing attachment of a marine life to a marine biological water treatment system, which does not require the installation of an apparatus for preventing marine organism attachment, by adding a sterilization treatment line and an injection line for preventing microorganisms from adhering to the ship.

In the present invention, the sterilizing treatment for the seawater intake portion is performed simultaneously with the operation of the ship ballast water treatment system, and the sterilized seawater is injected again into the ballast line, thereby sterilizing the attached organisms in the ballast line The present invention is to provide a system and a method for preventing marine biofouling, which can effectively sterilize the inside of piping, the inside of a ballast pump, and the like.

The present invention is to provide a system and a method for preventing attachment of marine organisms that can perform simple installation and operation by spraying sterilizing water using a pressure generated by a ballast pump even when there is no separate power source.

Other objects of the present invention will become readily apparent from the following description.

According to an aspect of the present invention, there is provided a system for preventing marine life adherence, comprising: a ballast pump for generating a pressure for allowing seawater to flow into a seawater inlet pipe from a sea chest; An electrolytic apparatus for electrolyzing a part of seawater flowing through the seawater inlet pipe to produce the germicidal material so that seawater in the seawater inlet pipe is mixed with the germicidal material and converted into sterilized water; And a sterilizing water injection tube for forming a path through which a part of sterilizing water flowing through the seawater inflow pipe is injected into the water intake portion by using the pressure generated by the ballast pump is provided .

The marine organism attachment prevention system comprises: a TRO (Total Residual Oxidant) sensor unit for measuring a concentration of a sterilizing material contained in sterilized water flowing through the seawater inlet pipe; And a control unit for judging whether the measured concentration of the germicidal substance meets predetermined criteria and outputting a control signal for the germicidal substance production amount to the electrolytic apparatus when the measured concentration does not match.

The sterilization water injection tube may be provided with an injection valve for interrupting the flow of the sterilization water.

The sterilization water injection tube may be provided with an injection pump for increasing the injection pressure of the sterilization water.

At least one injection nozzle for spraying sterile water is provided at a distal end of the sterilization water injection tube, and each injection nozzle part injects sterilizing water toward any one of the interior of the intake part, the seawater inlet, the intake part inner wall and the strainer pipe You can have a specified angle of spray.

The seawater mixed with the sterilized water injected into the water intake portion may be introduced through the seawater inlet pipe.

And a filter unit for filtering impurities contained in the seawater introduced into the seawater inflow pipe by the pressure generated by the ballast pump.

According to another aspect of the present invention, there is provided a method for preventing attachment of a marine life to a marine organism, which is performed by a control unit of a marine life attachment prevention system, comprising the steps of: determining whether or not a time to spray sterile water in a sea chest; The sterilizing water injecting tube and the sterilizing water injecting tube to spray the sterilizing water flowing through the seawater inlet tube through the sterilizing water injecting tube and through the injection nozzle part provided in the water intake part, There is provided a method for preventing attachment of a marine life including a step of opening the injection valve.

A method for preventing attachment of marine organisms comprises the steps of: receiving a measurement result of a concentration of a sterilizing material contained in sterilized water flowing through the seawater inlet pipe from a TRO (Total Residual Oxidant) sensor unit; Determining whether the measured concentration of the germicidal material meets predetermined criteria; And outputting a control signal for the sterilizing material production amount to the electrolytic apparatus which generates the sterilizing material when the criteria are not met.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

According to the embodiment of the present invention, it is unnecessary to separately install an apparatus for preventing attachment of marine life by adding a sterilization treatment line and an infusion line for preventing microbial adhesion to the ship equilibrium water treatment system provided in the ship.

In addition, the operation of the ballast water treatment system and the disinfection treatment of the seawater intake are performed, and the sterilized seawater is re-injected into the ballast line to sterilize the attached organisms in the ballast line, , And an effective sterilization treatment for the inside of the ballast pump.

Even if there is no separate power source, the sterilized water is sprayed by using the pressure generated by the ballast pump, so that there is an effect that the simple installation and operation can be performed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view of a marine organism attachment prevention system according to the prior art; FIG.
2 is a view schematically showing the structure of a marine life attachment prevention system according to an embodiment of the present invention.
3 is a schematic view showing a structure of a water intake part in which sterilizing water is sprayed according to an embodiment of the present invention.
4 is a schematic view illustrating a structure of a marine life attachment prevention system according to another embodiment of the present invention.
5 is a view schematically showing the structure of a water intake part in which sterilizing water is sprayed according to another embodiment of the present invention.
6 is a flowchart illustrating a method for preventing marine biofouling according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

In addition, the terms "part," "unit," "module," "device," and the like described in the specification mean units for processing at least one function or operation, Lt; / RTI >

It is to be understood that the components of the embodiments described with reference to the drawings are not limited to the embodiments and may be embodied in other embodiments without departing from the spirit of the invention. It is to be understood that although the description is omitted, multiple embodiments may be implemented again in one integrated embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

1 is a view showing a Marine Growth Protecting System (MGPS) according to the prior art.

Referring to FIG. 1, an electrolytic system for preventing marine biofilm attachment, which is installed independently in the sea chest and the engine cooling seawater line, includes an anode 31 and a cathode 31 for electrolyzing seawater flowing into the sea chest A DC power supply 33 for supplying DC power between the positive electrode 31 and the negative electrode 32 and a DC power supply 33 electrically connected to the positive electrode 31 to supply the same potential as the potential applied to the positive electrode 31 A measuring device 35 for measuring the potential of the auxiliary electrode 34 and a measuring device 35 for measuring the potential of the auxiliary electrode 34 measured by the measuring device 35 based on the potential value of the auxiliary electrode 34, And a control means (36) for controlling the DC power supplied between the cathode (31) and the cathode (32). Here, the anode 31 may be a copper electrode, and the cathode 32 may be an aluminum electrode.

When DC power is supplied from the DC power supply 33 to the anode 31 and the cathode 32 of the marine organism adhesion prevention system, the seawater introduced into the seawater inlet is electrolyzed to prevent the marine life from being attached to the seawater outlet Is performed.

However, the marine life attachment prevention system shown in FIG. 1 is a separate system that is installed independently of the ship ballast water treatment system. As a result, installation and operation of an additional system increases the cost of treating the ballast water, .

FIG. 2 is a schematic view illustrating a structure of a marine organism attachment preventing system according to an embodiment of the present invention, and FIG. 3 is a schematic view illustrating a structure of a water intake part in which sterilizing water is sprayed according to an embodiment of the present invention.

2, the marine life attachment prevention system includes a sea chest 210, a ballast pump 220, a filter unit 230, an electrolysis unit 240, a Total Residual Oxidant (TRO) A total residual oxidizing agent) sensor unit 250, a seawater tank 260, a control unit 270, and an injection valve 280.

In addition, the marine organism attachment prevention system includes a seawater inflow pipe 215 for providing a path for storing seawater introduced through the intake part 210 into the seawater tank 260, and a part of seawater flowing through the seawater inflow pipe 215 And a sterilizing water injection pipe 290 for providing a path for allowing the water (that is, a part of the sterilization water described later) to be injected into the water intake part 210.

The ballast pump 220 generates seawater through the intake portion 210 and generates pressure to cause the introduced seawater to flow into the seawater tank 260 through the seawater inlet pipe 215. The pressure generated by the ballast pump 220 is also used as a power source for allowing a part of sterilizing water to be injected into the intake part 210 through the sterilizing water injection pipe 290.

The filter unit 230 filters the impurities (for example, at least one of foreign substances, microorganisms, etc.) present in the seawater flowing through the seawater inflow pipe 215 by the pressure generated by the ballast pump 220.

A part of the seawater that has passed through the filter unit 230 is supplied to the electrolysis unit 240, and the electrolysis unit 240 electrically treats the seawater to generate the sterilizing material. The sterilizing material produced by the electrolysis unit 240 may be hypochlorous acid, for example, to remove biofilm formed by impurities mixed with seawater.

A pipe for supplying part of the seawater having passed through the filter unit 230 to the electrolysis unit 240 may be equipped with a heat exchanger (not shown). The heat exchanger may be used to heat seawater at a predetermined temperature (e.g., 5 degrees Celsius) or less.

The sterilizing material produced by the electrolysis unit 240 is mixed with seawater flowing through the seawater inlet pipe 215. Herein, for convenience of description, a substance in which the sterilizing substance generated by the electrolysis unit 240 and the sea water flowing in the seawater inflow pipe 215 are mixed is referred to as a sterilization water for convenience. However, sterilizing water injection is performed into the intake part 210 by the injection nozzle part 330 (see FIG. 3) as described later, so that the sterilizing material of a predetermined concentration may be contained in the seawater flowing into the seawater inflow pipe 215 However, for convenience of understanding, the material flowing into the seawater inflow pipe 215 from the intake part 210 will be referred to as sea water even if some sterilizing material is included.

The electrolytic unit 240 will be able to produce sterilizing material under the control of the control unit 270 such that the sterilizing material in sterilized water has a predetermined concentration (e.g., about 10 ppm of hypochlorous acid concentration).

The TRO sensor unit 250 measures the sterilizing substance concentration of the sterilizing water according to the sterilizing substance production of the electrolysis unit 240 and provides the measurement result to the control unit 270.

The control unit 270 determines whether the concentration of the sterilizing material is a predetermined concentration by referring to the measurement result provided from the TRO sensor unit 250. If the concentration of the sterilizing substance does not match the predetermined concentration, Lt; / RTI >

In addition, the control unit 270 branches a part of sterilized water flowing through the seawater inlet pipe 215 and flows through the sterilization water injection pipe 290, and the sterilization water is discharged by the pressure generated by the ballast pump 220, The injection valve 280 is opened so as to be injected into the injection port 210. The opening operation of the injection valve 280 may be performed, for example, periodically or at predetermined time points, or at a time when seawater flows through the water intake unit 210, or the like.

The control unit 270 may control the operation of the ballast pump 220 so that seawater is introduced through the seawater inlet pipe 215 when the seawater needs to be introduced from the intake unit 210. [

3, a sea water inlet 310 for introducing seawater is formed on one side of the water intake unit 210, and seawater introduced into the water intake unit 210 flows into the sea water inflow pipe 215 The sterilization valve 320 is disposed at the front end of the seawater inlet pipe 215 and sterilizing water flowing through the sterilization water injection pipe 290 is supplied to the water intake part 210 by the pressure of the ballast pump 220. [ And a spray nozzle unit 330 for spraying the sprayed water into the inside. Here, the shape and arrangement of the injection nozzle unit 330 may vary depending on, for example, the speed and flow of the fluid, the shape of the water intake unit 210, and the like.

The sterilizing water is sprayed through the spray nozzle unit 330 and mixed with the seawater stored in the water intake unit 210. As a result, the seawater stored in the water intake unit 210 also contains sterilizing substances of a certain concentration.

Therefore, even if a separate sterilization device is not installed in the water intake part 210, it is possible to sterilize the seawater stored in the water intake part 210 by itself, such as prevention of microbial adhesion. Even if there is no additional power source, marine organisms attached to the water intake unit 210, strainer pipe, etc. can be separated and sterilized by the sterilizing water sprayed at a pressure corresponding to the pressure generated by the ballast pump 220.

The seawater containing a sterilizing material at a predetermined concentration flows through the seawater inflow pipe 215 by the opening operation of the intermittent valve 320 by the control unit 270 so that the inside of the seawater inflow pipe 215, There is an advantage that sterilization treatment can be performed on the inside of the apparatus.

The marine biological deposit prevention system according to the present embodiment is characterized in that sterilization treatment is simultaneously performed on the water intake part 210 in the process of treating the ballast water.

FIG. 4 is a view schematically showing a structure of a marine organism attachment prevention system according to another embodiment of the present invention, and FIG. 5 is a schematic view of a structure of a water intake part in which sterilizing water is sprayed according to another embodiment of the present invention.

4 and 5, a description will be given of a different embodiment of the marine life attachment prevention system according to the present invention, focusing on matters different from the embodiment described with reference to FIGS. 2 and 3. FIG.

Referring to FIG. 4, the marine organism attachment prevention system may be configured such that an infusion pump 410 is interposed in the sterilizing water injection pipe 290.

The injection pump 410 can increase the injection pressure of the sterilizing water injected through the injection nozzle unit 330 by accelerating the flow rate of the sterilizing water flowing through the sterilizing water injection tube 290. [ The spray pressure of the increased sterilizing water may be such that impurities attached to the surface of the intake part 210, the strainer pipe, etc., or the seawater inlet 310 can be easily separated from the attachment surface.

As shown in FIG. 5, the spray nozzle unit 330 may have various shapes and arrangements for effectively separating and sterilizing impurities adhering to the surface of the intake unit 210, the strainer pipe, and the like or the seawater inlet 310 As shown in Fig.

FIG. 6 is a flowchart illustrating a method for preventing marine life attachment according to an embodiment of the present invention.

Referring to FIG. 6, the control unit 270 receives the measurement result of the sterilizing material concentration included in sterilized water from the TRO sensor unit 250 at step 610.

In step 620, the control unit 270 determines whether the concentration of the germicide contained in the sterilized water is appropriate for a predetermined criterion (for example, hypochlorous acid concentration of about 10 ppm).

If the germicidal water does not contain an appropriate concentration of germicidal material, the control unit 270 proceeds to step 630 to output a control signal for the germicidal material production amount to the electrolysis unit 240 to maintain the proper germicidal substance concentration do.

However, if the germicidal water contains an appropriate concentration of germicidal material, proceed to step 640.

The control unit 270 opens the injection valve 280 at a current point of time so that a part of the sterilized water flows through the sterilizing water injection pipe 290 and then the injection nozzle unit 330 To determine whether or not the injection process should be performed.

The opening of the injection valve 280 for spraying sterile water may be repeated, for example, at predetermined time intervals, at a predetermined point in time, or due to the operation of the ballast pump 220 and the opening of the intermittent valve 320 And may be performed at a time when seawater flows through the seawater inlet pipe 215 or the like.

If the present time is the opening time of the injection valve 280, the control unit 270 performs an opening operation of the injection valve 280 in step 650. [

The marine organism attachment prevention system and method described above with reference to the related embodiments is not limited to a ship having a marine ballast water treatment system but also a marine organism attachment prevention system of a system for filtering seawater or fresh water, And a system for preventing the attachment of marine organisms in the sea.

It is a matter of course that the above-described marine life attachment prevention method may be carried out by an automated procedure in a time-series sequence by a built-in program or the like installed in the digital processing apparatus. The codes and code segments that make up the program can be easily deduced by a computer programmer in the field. In addition, the program is stored in a computer readable medium readable by the digital processing apparatus, and is read and executed by the digital processing apparatus to implement the method. The information storage medium includes a magnetic recording medium, an optical recording medium, and a carrier wave medium.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the following claims And changes may be made without departing from the spirit and scope of the invention.

210: water intake part 215: sea water inflow pipe
220: ballast pump 230: filter unit
240: electrolysis unit 250: TRO sensor unit
260: seawater tank 270: control unit
280: Injection valve 290: Sterile water injection tube
310: Seawater inlet 320: Intermittent valve
330: injection nozzle unit 410: injection pump

Claims (10)

In a marine life attachment prevention system,
A ballast pump that generates pressure to cause seawater to enter the seawater inlet pipe from the sea chest;
An electrolytic apparatus for electrolyzing a part of seawater flowing through the seawater inlet pipe to produce the germicidal material so that seawater in the seawater inlet pipe is mixed with the germicidal material and converted into sterilized water; And
And a sterilizing water inlet pipe forming a path for allowing a portion of the sterilizing water flowing through the seawater inlet pipe to be injected into the intake unit using the pressure generated by the ballast pump. The method of claim 1,
A TRO (Total Residual Oxidant) sensor unit for measuring the concentration of the germicidal material contained in the sterilized water flowing through the seawater inlet pipe; And
Further comprising a control unit for judging whether the measured concentration of the germicidal substance meets a predetermined criterion and outputting a control signal for the germicidal substance production amount to the electrolytic apparatus when the concentration of the germicidal substance does not match. The method of claim 1,
Wherein the sterilizing water injection tube is provided with an injection valve for interrupting the flow of the sterilizing water. The method of claim 1,
Wherein the sterilizing water injection tube is provided with an injection pump for increasing the spraying pressure of the sterilizing water. The method according to claim 1 or 4,
At least one spray nozzle unit is formed at the distal end of the sterilizing water inlet tube, and each spray nozzle unit is configured to spray the sterilizing water toward any one of the inlet space, the seawater inlet, the inlet wall, and the strainer pipe. Marine life attachment prevention system with designated spray angle. The method according to claim 1 or 4,
Seawater mixed with the sterilized water injected into the water intake unit marine marine attachment prevention system is introduced through the inlet. The method according to claim 1 or 4,
And a filter unit for filtering impurities contained in the seawater introduced into the seawater inflow pipe by the pressure generated by the ballast pump. In the marine life attachment prevention method performed by the control unit of the marine life attachment prevention system,
Determining whether it is time to inject sterilized water into the sea chest; And
When it is time to spray the sterilized water, the injection part interposed in the sterilized water inlet pipe so that a part of the sterilized water flowing through the seawater inlet pipe flows through the sterilized water inlet pipe and sprayed through the injection nozzle unit provided in the intake section A method of preventing marine organism attachment comprising opening a valve for a valve. 9. The method of claim 8,
Receiving a concentration measurement result of the sterilizing substance contained in the sterilizing water flowing through the seawater inlet pipe from a TRO sensor;
Determining whether the measured concentration of the sterilizing substance meets a predetermined standard; And
If it does not meet the criteria, further comprising the step of outputting a control signal for the amount of sterilizing material generated to the electrolysis device for producing the sterilizing material. A recording medium having recorded thereon a program of instructions that can be executed by a digital processing apparatus for performing the marine organism attachment prevention method according to any one of claims 8 to 9.

Images