WO2014142437A1

WO2014142437A1 - Pre-processing apparatus of ballast water inline processing apparatus

Info

Publication number: WO2014142437A1
Application number: PCT/KR2014/000418
Authority: WO
Inventors: 박옥열
Original assignee: 주식회사 케이티마린
Priority date: 2013-03-13
Filing date: 2014-01-15
Publication date: 2014-09-18
Also published as: KR101398617B1; JP2016517368A; CN105189363A; CN105189363B

Abstract

The present invention selectively applies a structure in which cylindrical inner chamber spaces of a pre-processing apparatus are arranged such that spaces having a larger diameter and spaces having a smaller diameter sequentially alternate to communicate with each other, a plurality of baffle plates are arranged within the cylindrical inner chamber spaces, an impeller is installed in each space of a rotating shaft passing through the interiors of the spaces, and a spiral boss is formed along the inner peripheral surfaces of the cylindrical inner chamber spaces. Thus, the present invention can generate turbulent flow which is easily induced due to a difference between the flow velocity in a space having the larger diameter and the flow velocity in a space having the smaller diameter and an increase in the flow velocity caused by the spiral boss, to increase a physical impact effect in which animal planktons and water microorganisms sequentially collide with the impeller and to additionally allow the animal planktons and the water microorganisms to physically collide with the baffle plates and the spiral boss by a centrifugal force facing an outer direction of the impeller at the same time, thereby stably operating the ballast water.

Description

Pretreatment device for ballast water inline treatment system

The present invention sequentially arranges the cylindrical boudoir space of the pretreatment apparatus so that a large diameter space and a small diameter space communicate with each other, arranging a baffle plate in the cylindrical boudoir space, and a rotating shaft penetrating through each space. By installing an impeller for each space and selectively applying a structure that forms a spiral protrusion along the inner circumferential surface of the cylindrical chamber space, the animal characteristics can be exploited using the difference in the flow velocity of the ballast water flowing in the large diameter space and the small diameter space. The present invention relates to a pretreatment device for a ballast water inline treatment device that improves the physical impact effect due to turbulence generated when plankton and aquatic microbes collide with impellers, baffles, and spiral protrusions.

The ballast water is water that is filled in the vessel to maintain the balance of the vessel when the vessel is unloaded and operated, and the ballast water is collected in the ballast water storage tank without loading the cargo in a certain area. It is operated in the form of drainage from the ballast water storage tank as the cargo is loaded and then discharged from the ballast water storage tank as loading progresses. At this time, marine life in a certain area contained in the ballast water to be taken may move to another area and be exposed to a new environment. Accordingly, invasion of indigenous species into indigenous species destroys the marine ecosystem or environmental and economic It causes loss and poses a human hazard from various pathogens.

Thus, in 2004, the International Maritime Organization (IMO) enacted an agreement on the management of ballast water and sediment in ships to prevent ecosystem destruction and pollution. Two methods of water exchange and two methods of disinfecting and disinfecting the ballast water in the ship by physical and chemical methods were proposed. The point of application depends on the construction date of the ship and the capacity of ballast water in the ship, and the exchange of ballast water requires a lot of time and effort, which may pose a danger to the safety of the ship and is impossible to work during close navigation. It is required to develop a practical ballast water treatment system in consideration of sex and economic feasibility.

In the conventional ballast water treatment system, a ballast process includes a pretreatment process (or no pretreatment process), and electrolysis, ozone treatment, ultraviolet irradiation, or chemical injection are performed in the ballast process. In the operation of the main process, a high concentration of oxides are generated as a mechanism for killing and removing microorganisms contained in ballast water, thereby preventing microorganisms from growing or attaching to pipes and tanks at the rear of the main process.

In addition, various pretreatment systems, such as a filter and a centrifuge, are used at the front end of the main process to reduce the load on the main method. Applicant (or inventor) is a physical pre-treatment apparatus 100 that can kill, remove and damage the zooplankton and aquatic microorganisms by physical impact by the jet flow induced impeller 11 installed in the pipeline as shown in FIG. ), And the positive electrode plate and the negative electrode plate are installed alternately therein, the ballast water through the electrolysis device 200 and the electrolysis device 200 to completely kill, sterilize and remove the microorganisms in the water by generating residual chlorine Patent application for in-line treatment device of ballast water including neutralizing device 300 for neutralizing the excess residual chlorine contained in the treated water stored in the storage tank 500 before discharge to the sea Patent No. 1118055, "Inline Treatment Device for Ballast Water," has been issued a patent.

The pretreatment device 100 of the Republic of Korea Patent No. 1118055 "ship ballast water in-line treatment apparatus" is shown in Figure 2, the jet flow induced impeller 11 is formed on the rotating shaft 13 in a spiral structure Both ends of the rotating shaft 13 are connected to the bearing 12 provided in the flange coupling structure 14 which is coupled to each other between the flanges 23 of the connecting pipes. Although relatively large zooplankton and aquatic microorganisms are killed, removed and damaged by the impact of jet flow-induced impeller 11 installed inside the pipeline and the physical impact caused by turbulence, the jet flow-induced impeller 11 As the structure is a helical structure, there is a fear that the impeller impacts the phytoplankton and the underwater microorganisms.

In order to solve the above problems, the present invention sequentially arranges the cylindrical boudoir space of the pretreatment apparatus so that a large diameter space and a small diameter space communicate with each other, arranging a baffle in the cylindrical boudoir space, and each space. Differences in the flow rate of ballast water flowing through the large diameter space and the small diameter space by selectively applying a structure to form a spiral protrusion along the inner circumferential surface of the cylindrical chamber space while installing an impeller for each space on the rotating shaft penetrating the inside Turbulence formation, which is easily induced by the increase of the flow velocity due to the helical projections, increases not only the physical impact effect caused by the turbulence generated at the same time as the zooplankton and aquatic microorganisms hit the impeller, but also the centrifugal force toward the impeller outward. Causing a physical collision between the baffle and the spiral protrusion As to the processor for providing the zooplankton and water ballast vessel which improves the treatment efficiency of microbial treatment in-line device to challenge.

The present invention provides a ballast water inline treatment apparatus comprising a pretreatment device and an electrolysis device,

The pretreatment device is a structure in which the cylindrical inner chamber is formed, the rotating shaft is coupled to the bearings provided on both sides of the cylindrical inner chamber, and a plurality of impellers are provided on the rotating shaft. By means. Here, the cylindrical inner chamber is provided with one or more baffle plates.

And the cylindrical inner chamber is formed of a plurality of spaces having a different diameter of the cylinder, it is preferable that the space with a small diameter and the space with a large diameter are cross-arranged sequentially. Here, it is preferable that the baffle plate is arranged at a portion where the small diameter space and the large diameter space arranged in the cylindrical inner chamber intersect.

In addition, the bearing is inserted into the rotating shaft fixing ribs coupled to both sides of the cylindrical inner chamber, the rotating shaft fixing rib is preferably coupled to the rotating shaft fixing flanges formed on both sides of the cylindrical inner chamber.

On the other hand, the cylindrical inner chamber may further form a spiral protrusion along the inner peripheral surface.

As described above, the present invention sequentially arranges the cylindrical boudoir space of the pretreatment apparatus so that a space having a large diameter and a space having a small diameter communicate with each other, arranging a plurality of baffle plates in the cylindrical boudoir space, By installing an impeller for each space on the rotating shaft to penetrate, and selectively applying a structure to form a spiral protrusion along the inner circumferential surface of the cylindrical chamber space, the difference between the flow velocity of the ballast water flowing in the large diameter space and the small diameter space and the spiral Turbulence formation, which is easily induced by increased flow velocity, increases the physical impact effect of sequential impact of zooplankton and aquatic organisms on the impeller, while addition of phytoplankton and aquatic microorganisms by means of centrifugal force outward of the impeller. Physically colliding By Lee it will enable the stable operation of the ballast vessel.

1 is a schematic diagram of an inline treatment apparatus for ballast water of the present applicant filed and patented

2 is an enlarged view showing the internal structure of the pretreatment apparatus of FIG.

Figure 3 is an enlarged cross-sectional view showing the internal structure of the pretreatment apparatus of the in-line treatment apparatus of ballast water in accordance with an embodiment of the present invention

4 is a cross-sectional view taken along the line AA ′ of FIG. 3.

5 is a cross-sectional view of the impeller installed in a space having a small diameter as a cross-sectional view taken along line B-B 'of FIG.

FIG. 6 is a cross-sectional view of an impeller installed in a large diameter space with a cross section taken along the line CC ′ of FIG. 3.

FIG. 7 is a cross-sectional view of a baffle plate installed in a cylindrical inner chamber with a cross section taken along the line D-D ′ of FIG. 3; FIG.

8 is a cross-sectional view taken along the line E-E 'of FIG.

9 is an enlarged cross-sectional view illustrating an internal structure of a pretreatment apparatus of an inline treatment apparatus for ballast water according to another embodiment of the present invention.

10 is a cross-sectional view taken along line AA ′ of FIG. 9.

Figure 11 is an enlarged cross-sectional view showing the internal structure of the pretreatment apparatus of the in-line treatment apparatus of ballast water according to another embodiment of the present invention

With reference to the accompanying drawings for the pre-treatment device for ballast water inline treatment apparatus according to the present invention will be described only parts necessary to understand the technical configuration of the present invention, the description of the other parts are omitted so as not to distract the gist of the present invention. It should be noted that

Hereinafter, a pretreatment apparatus of a ballast water inline treatment apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

In the present invention, in a conventional ballast water inline treatment apparatus including a pretreatment apparatus 100 and an electrolysis apparatus 200, the pretreatment apparatus 100 has a structure in which a cylindrical inner chamber is formed. The rotating shaft 20 is coupled to the bearing 10 provided on both sides of the cylindrical inner chamber, and rotates, and a plurality of

impellers

30a, 30b, and 30c are provided on the rotating shaft 20. One or

more baffle plates

70a, 70b, 70c, 70d, 70e, and 70f are provided in the cylindrical chamber space.

Such baffle plates

70a, 70b, 70c, 70d, 70e, and 70f consist of a ring-shaped disk body and are attached to the cylindrical inner chamber inner peripheral surface to protrude into the cylindrical inner chamber space.

In addition, a spiral protrusion 80 may be formed along the inner circumferential surface of the cylindrical chamber space.

Conventional pretreatment devices are applied to various techniques such as filters or centrifuges to reduce the load on subsequent major processes, and physical treatment or animal plankton to remove relatively large animal plankton and aquatic microorganisms or foreign substances. And the present inventors have developed and operated a pretreatment device as described in Korean Patent Publication No. 1118055 "Inline Treatment System of Ballast Water" as a method for improving the treatment efficiency of the underwater microorganisms. However, this pretreatment device also has a superior impulse to push the zooplankton and the aquatic microorganisms in the fluid flow direction because the impeller structure is provided alone as a spiral structure, and thus the physical impact effect of the zooplankton and the aquatic microorganisms on the impeller. There was concern be reduced.

The present invention is an improvement of the pretreatment apparatus of the Republic of Korea Patent Publication No. 1118055 "ship ballast water inline treatment apparatus" registered by the present applicant, the cylindrical inner chamber of the pretreatment apparatus according to the present invention is shown in FIG. Likewise, the cylinders are formed of a plurality of spaces (S ₁ , S ₂ , S ₃ , S ₄ ) having different diameters, and have a small diameter (S ₁ , S ₃ ) and a large diameter (S ₂ , S ₄ ). This is cross-arranged sequentially. Where the small diameter space (S ₁ , S ₃ ) and the large diameter space (S ₂ , S ₄ ) intersect, that is, the small diameter space (S ₁ , S ₃ ) and the large diameter space (S ₂ ,

Block plates

70a, 70b, 70c, 70d, 70e, 70f are provided on the connection surface C of S ₄ ).

Therefore, as shown in FIG. 3, the flow velocity of the fluid when the ballast water passes through sections of spaces having different diameters is such that the flow velocity of each section is high, such as V ₁ , V ₂ , V ₁ , and V _2. The zooplankton and aquatic microorganisms contained in the ballast water due to the turbulent flow formed by the section and the slow flow rate section have a plurality of

impellers

30a, 30b, and 30c as shown in FIGS. 3, 5, 6, and 7. The physical impact of the sequential impact on the

baffle plates

70a, 70b, 70c, 70d, 70e, and 70f increases the effect of death, removal or damage.

At this time, looking at the structure in which the bearing 10 is fixed to both sides of the cylindrical inner chamber, as shown in Figures 3 and 4, first, the rotating shaft fixing flange 60 is formed on both sides of the cylindrical inner chamber, the rotating shaft fixing flange In the state in which the rotating shaft fixing rib 50 is coupled to the 60, the bearing 10 is coupled to the central portion of the rotating shaft fixing rib 50.

As shown in FIG. 7, the pretreatment device 100 has a flange 40 coupled to both ends of the pretreatment device against the flanges of the connection pipes, and through the fastening hole 90 formed in the flange 40. As a bolted coupling structure, the ballast water passing through the pretreatment apparatus 100 is continuously introduced into the electrolysis apparatus 200 which is a subsequent process as shown in FIG. 1.

Meanwhile, as shown in FIGS. 9, 10, and 11, the pretreatment apparatus 100 may further include a spiral protrusion 70 formed on a cylindrical inner chamber along its inner circumferential surface, such as the spiral protrusion 80. Is formed while the strip-shaped plate body having a set width is spirally wound. Therefore, zooplankton and aquatic microorganisms contained in ballast water collide with the spiral protrusion 80 in addition to the plurality of

impellers

30a, 30b and 30c and the

baffles

70a, 70b, 70c, 70d, 70e and 70f. As a result, the effects of death, removal or damage due to physical shocks are increased.

Here, the electrolysis device 200 may be applied to the electrolysis device 200 of the Republic of Korea Patent Publication No. 1118055 "ship ballast water inline treatment device" that the applicant has been registered patent. The electrolysis device 200 generates sodium hydroxide (NaOH) and chlorine gas (Cl ₂ ) by electrolyzing ballast water, which is an aqueous solution of sodium chloride (NaCl), and reacts sodium hypochlorite (NaOCl), which is a bactericide, by reaction. As a device for completely killing, sterilizing and removing not only the zooplankton shocked by the physical pretreatment device 100 but also the remaining aquatic microorganisms, the present invention is registered in Korean Patent Publication No. 1118055 "ship ballast water. As in the electrolysis apparatus 200 of "Processing apparatus", the structure of multiple positive electrode plates and negative electrode plates are alternately arranged at regular intervals in the same manner as the flow direction of fluid flowing into the electrolysis apparatus 200, or site conditions And can be installed in various forms depending on the operating conditions.

The treated water flowing out of the electrolysis device 200 is stored in the ballast water tank 500 and neutralized through the neutralizing device 300 so that residual chlorine contained in the treated water becomes a component similar to natural seawater and discharged to the ocean. do.

The electric control device 600 is characterized in that the ballast water passing through the electrolysis device 200, that is, the inflow rate of the ballast water, the flow rate, salinity and the type and shape of marine microorganisms according to the region In consideration of this, it is possible to control the power supplied to the electrolysis device 200 through the variable rectifier 400 by calculating the amount of power required to generate sodium hypochlorite (NaOCl) necessary for their sterilization. have. This configuration makes it possible to control the concentration of residual chlorine-based compounds required for the sterilization of microorganisms in the electrolysis device 200, and to prevent excessive generation of residual chlorine-based compounds and unnecessary waste of power.

Therefore, the pretreatment apparatus 100 of the ballast water inline treatment apparatus 100 according to the present invention has a cylindrical inner space so that the small diameter spaces S ₁ , S ₃ and the large diameter spaces S ₂ , S ₄ communicate with each other. The

obstruction plates

70a, 70b, 70c, 70d, 70e, and 70f are sequentially disposed and intersected with the small diameters S ₁ and S ₃ and the large diameters S ₂ and S ₄ . The plurality of impellers (30a, 30b, 30c) are arranged on the rotating shaft 20 passing through each space, while the spiral projection 80 is further formed along the inner circumferential surface of the cylindrical chamber space, thereby having a large diameter The zooplankton and aquatic microorganisms are impregnated with impellers (30a, 30b, 30c) by using the flow rate difference between ballast water flowing in the space (S ₂ , S ₄ ) and the space (S ₁ , S ₃ ) with smaller diameters. Improved physical shock effect due to turbulence generated at the same time as hitting (70a, 70b, 70c, 70d, 70e, 70f) Not only does the effect of extinction, removal or damage increases, but zooplankton and aquatic microorganisms contained in the ballast water flowing in the space collide with the spiral protrusion 80, thereby further improving the physical impact effect.

As described above, the pretreatment device of the ballast water in-line treatment apparatus according to the present invention has been described through the above preferred embodiment, and the superiority thereof has been described, but those skilled in the art will appreciate that the present invention described in the following claims It will be understood that various modifications and variations can be made in the present invention without departing from the spirit and scope.

The present invention provides a ballast water inline treatment apparatus including a pretreatment device and an electrolysis device, the pretreatment device is a cylindrical inner chamber is formed, the rotating shaft is coupled to the bearings provided on both sides of the cylindrical inner chamber, A pretreatment device for a ballast water inline treatment device, characterized in that a plurality of impellers are provided.

It is preferable that at least one baffle plate is provided in the cylindrical inner chamber.

The present invention provides zooplankton and aquatic microorganisms through the formation of turbulence easily induced by the difference in the flow velocity of ballast water and the increase of the flow rate by spiral projections in the cylindrical inner space of the pretreatment apparatus. In addition, the physical impact effect against the impeller is increased in sequence, and the zooplankton and the aquatic microorganism are additionally physically collided with the baffle and the spiral protrusion by the centrifugal force of the impeller, so that the ballast water can be safely operated. It is expected to be widely applicable to ships.

Claims

In the ballast water in-line treatment apparatus including a pretreatment device and an electrolysis device,

The pretreatment apparatus has a cylindrical inner chamber is formed, the rotating shaft is coupled to the bearings provided on both sides of the cylindrical inner chamber, a plurality of impeller is provided on the ballast water inline treatment apparatus characterized in that the rotation shaft is provided.
The method of claim 1,

Pre-treatment device for ballast water in-line treatment apparatus, characterized in that one or more baffle plate is provided in the cylindrical inner chamber.
The method according to claim 1 or 2,

The cylindrical inner chamber is formed of a plurality of spaces having a different diameter of the cylinder, the pre-processing device of the ballast water in-line treatment apparatus, characterized in that the space with a small diameter and the space with a large diameter are arranged in sequence.
The method of claim 3, wherein

The pretreatment apparatus of the ballast water in-line treatment apparatus, characterized in that the baffle plate is arranged in the intersection of the small diameter space and the large diameter space arranged in the cylindrical inner chamber.
The method of claim 1,

The cylindrical inner chamber is a pre-processing device of the ballast water inline treatment device, characterized in that the spiral projection is further formed along the inner peripheral surface.
The method of claim 1,

The bearing is inserted into the rotating shaft fixed ribs are coupled to both sides of the cylindrical inner chamber, the rotating shaft fixed ribs are coupled to the rotating shaft fixed flanges formed on both sides of the cylindrical inner chamber pre-processing device of the ballast water inline treatment apparatus.