KR20180097063A - Physical treatment apparatus in ship ballast water treatment system - Google Patents

Abstract

The present invention relates to a physical treatment apparatus in a ship ballast water treatment system, which is installed in a ship ballast water inflow pipe to treat plankton and microorganism contained in ship ballast water, and comprises: a housing connected to the inflow pipe to form a flow path through which the ship ballast water passes; a stator embedded in the housing, and provided with a pulverization means at one side thereof; and a rotor embedded in the housing to face the stator, and provided with another pulverization means corresponding to the pulverization means of the stator. Moreover, and the pulverization means of the stator and the pulverization means of the rotor have the shape of rotating by being engaged with each other, and the physical treatment apparatus destructs and treats the plankton and the microorganism of the ship ballast water by pressure difference with a shearing force in case of rotation.

Description

Technical Field [0001] The present invention relates to a physical treatment apparatus for a ship ballast water treatment system,

The present invention relates to a physical treatment apparatus for a ship ballast water treatment system for treating ship ballast water without using an oxidizer.

Ship ballast water is the water to be filled in the vessel to maintain the equilibrium of the vessel when the vessel cargo is unloaded and the vessel ballast water is taken in the storage tank without loading the cargo in a certain area, The ballast water is discharged from the ballast water storage tank according to the progress of the loading, and drains the ballast water to an area having a completely different ecological environment than the ordinary ballast water storage tank. At this time, there is a concern that marine life in a certain area contained in the ballast water to be taken may be moved to another area and exposed to a new environment, and the marine ecosystem is destroyed due to the introduction of alien species into the native species, And the harmful effects of various pathogens are also implicated.

For this reason, the International Maritime Organization (IMO) in 2004 established a convention on the management of ship ballast water and sediments in ships to prevent destruction of ecosystems and pollution, and entered into force in September 2017 following ratification in 2016. Ahead.

Conventional ballast water treatment process (ballast process) consists of pretreatment process (or no pretreatment process) and main treatment process. In the main treatment process, electrolysis, ozone treatment, ultraviolet irradiation, In the pretreatment process that precedes the treatment process, various physical treatment systems such as filters, centrifuges and the like are used to reduce the load of the main treatment.

The most commonly used physical treatment techniques are filtration filters using meshes, wedge wires, and composite materials, which increase the back flushing time due to frequent clogging Which reduces the overall ballast water treatment (BWMS) efficiency.

In addition, various metals, gravel, nails, etc. contained in seawater when ballast water enters the ship cause abrasion and damage to the ballast water treatment apparatus (tool). Damage caused by metal, gravel, nails, etc. may not only degrade the performance of the physical processing apparatus, but may also cause friction in the apparatus, resulting in overloading, and the efficiency of the apparatus may deteriorate over time. In order to solve these problems, there is a method of using a strainer in front of a physical treatment device. However, in the case of small particles of gravel, nails, and various metals, a filter and a filtering method of a strainer There is a limit.

Prior Art Document 1: Registration No. 10-1491124

Prior Art Document 2: Registration Patent No. 10-1398617

Disclosure of Invention Technical Problem [8] The present invention has been made to solve the above-mentioned problems, and its object is to provide a physical treatment of a ballast water treatment system capable of increasing water treatment efficiency by preventing damage and clogging caused by hard foreign matters included in the ballast water And an object of the present invention is to provide a device.

In order to achieve the above object, the present invention provides a physical treatment apparatus of a ship ballast water treatment system installed in a ship ballast water inflow pipe for treating plankton and microorganisms contained in the ballast water, A housing in which a flow passage is formed to allow water to pass therethrough; A stator housed in the housing and having grinding means at one side; And a rotor provided in the housing so as to face the stator and having a crushing means corresponding to the crushing means of the stator, wherein the crushing means of the stator and the crushing means of the rotor have a shape rotated and engaged with each other, And the plankton and the microorganisms of the ballast water are killed by the shear force and the pressure difference.

Preferably, a flexible member having greater elasticity than the grinding means of the stator is provided on one surface of the stator, and the grinding means of the stator is coupled to an end of the flexible member.

Preferably, on one side of the rotor, a flexible member having greater resilience than the crushing means of the rotor is provided, and the end of the flexible member is coupled to the crushing means of the rotor.

Wherein the grinding means comprises a plurality of blades, the blades having radial patterns radially and circumferentially spaced apart.

The flexible member may also include a plurality of flexible elements that are individually coupled to each of the blades.

Advantageously, the blades and the flexible elements are configured to be engageable and releasable to the stator or the rotor via fastening means.

The stator is disposed at a lower portion of the housing, the rotor is disposed at an upper portion of the stator, and a motor for driving the rotor is disposed at an upper portion of the housing.

Preferably, the housing has an inlet flange on one side and a discharge flange on the other side, and the inlet flange and the outlet flange are connected to the ship ballast water inflow pipe.

It is also possible to provide a ballast water treatment system that is installed at a front end or a rear end of a main processing apparatus for treating ship ballast water using an oxidizing agent and has a ballast water- And the like.

Preferably, the cyclone apparatus includes a cyclone apparatus for filtering out foreign substances contained in the ballast water using centrifugal force, and the cyclone apparatus is installed on the front end side of the inflow pipe for treating the ballast water before entering the housing .

According to the present invention, the clogging phenomenon which is a problem of the conventional filter method can be eliminated by killing plankton and aquatic microorganisms having a relatively large size by using the shear force and the pressure difference due to the rotation of the stator and the rotor, The processing efficiency of the main processing apparatus can be increased.

Further, according to the present invention, by mounting the blades to the rotor and the stator by using the flexible member, it is possible to prevent the blades from being damaged by the hard foreign matters such as metal or gravel contained in the ballast water, The life can be increased. Further, the flexible member can be detachably attached to facilitate tool maintenance and maintenance.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a ship ballast water treatment system having a physical treatment device of a ship ballast water treatment system according to the present invention,
FIG. 2 is a perspective view showing a physical treatment apparatus of a marine ballast water treatment system according to the present invention, in which a part of a housing is shown so as to show its interior,
3 is a perspective view showing a stator of a physical treatment apparatus of a marine ballast water treatment system according to the present invention,
4 is a perspective view showing a rotor of a physical processing apparatus of a marine ballast water treatment system according to the present invention,
5 is a perspective view showing an example of a stator and a rotor of a physical processing apparatus of a marine ballast water treatment system according to the present invention,
6 is a perspective view showing another example of a stator and a rotor of a physical treatment apparatus of a marine ballast water treatment system according to the present invention,
FIG. 7 is an exploded perspective view showing a coupling method of a flexible member and a blade of a physical treatment apparatus of a marine ballast water treatment system according to the present invention,
FIG. 8 is a perspective view exaggerating a state in which a flexible member of a physical treatment apparatus of a marine ballast water treatment system according to the present invention is bent; FIG.
Figures 9a-9e illustrate various arrangements in which a physical treatment device of a marine ballast water treatment system according to the present invention is mounted on a ship,
10a and 10b are diagrams illustrating a cyclone apparatus that may be used with a physical treatment apparatus of a marine ballast water treatment system in accordance with the present invention.

Hereinafter, preferred embodiments of a physical treatment apparatus of a marine ballast water treatment system according to the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the technical scope of the present invention. Will be.

1, a physical treatment apparatus 100 of a marine ballast water treatment system according to the present invention is an apparatus installed inside a ship 10 to physically treat plankton and aquatic microorganisms contained in marine equilibrium water . The ship 10 is provided with an inflow pipe 12 for inflowing ballast water to the ballast tank 11 and a ballast pump 13 and a main processing apparatus 200 are provided for the inflow pipe, The apparatus 200 may be an electrolytic apparatus for electrolyzing seawater to produce an oxidant or a chemical injector for directly injecting an oxidant. The physical processing apparatus 100 according to the present invention is installed in the ballast water inflow pipe 12 and is preferably disposed at the front end of the main processing apparatus 200 so that the physical processing apparatus 100 It acts to physically treat ship equilibrium water.

2 to 4, a physical processing apparatus 100 according to the present invention includes a housing 110, a stator 120, and a rotor 130. The housing 110 is connected to the inflow pipe 12, and a flow path through which the ballast water flows is formed. The stator 120 is housed in the housing 110 and has grinding means 121 on one side. Like the stator 120, the rotor 130 is housed in the housing 110 and has a crushing unit 131 on one side. A motor 140 for rotating the rotor 130 is installed on the upper portion of the rotor 130 and the rotor 130 is connected to the motor 140 through the shaft 150. Here, the crushing means 121 of the stator 120 and the crushing means 131 of the rotor 130 are arranged to face each other and have a shape rotated and engaged with each other.

When the rotor 130 is rotated by the driving of the motor 140, an external pressure such as a shearing force and a pressure difference generated between the crushing means 121 of the stator 120 and the crushing means 131 of the rotor 130 is generated This external pressure can kill or damage plankton and microorganisms of relatively large size contained in the ship ballast water.

Preferably, the physical treatment apparatus 100 according to the present invention further comprises grinding means 131 and 121 of the rotor 130 and the stator 120 by a hard foreign substance such as metal, gravel, nails, etc. contained in the ballast water, So that it is prevented from being damaged.

5 to 8, a stator 120 has a flexible member 122 on one surface thereof and the smoothing means 121 of the stator 120 is coupled to the end of the flexible member 122. Here, the flexible member 122 is made of a material having greater elasticity than the crushing means 121 of the stator 120. That is, the flexible member 122 may be made of a soft material having a smaller strength and hardness than the crushing means 121 of the stator 120.

Further, the flexible member may be provided on one side of the rotor 130, not on the stator 120. The grinding means 131 of the rotor 130 is coupled to the end of the flexible member 132. Likewise, the flexible member 132 is made of a material having greater elasticity than the grinding means 131 of the rotor 130. That is, the flexible member 132 may be made of a soft material having a smaller strength and hardness than the grinding means 131 of the rotor 130.

Alternatively, the flexible member may be provided on both the stator 120 and the rotor 130.

Since the crushing means 121 and 131 are coupled to the rotor 130 and / or the stator 120 through the flexible members 122 and 132 as described above, the inside of the housing 110 is filled with a hard material such as metal, When foreign substances are introduced, the rotor 130 and the crushing means of the stator 120 are separated from each other so that solid foreign matter can pass through. Therefore, it is possible to prevent the rotor 130 and the crushing means 131 and 121 of the stator 120 from being damaged.

Preferably, the above-mentioned grinding means 121 and 131 have a plurality of blades 121a and 131a. The blades 121a and 131a are arranged in the rotor 130 and the stator 120 in a radial pattern. That is, the blades 121a and 131a are radially spaced from the center of the rotor 130 and the stator 120 and have an arrangement spaced apart in the circumferential direction. Therefore, the radial flow passages are formed between the rotor 130 and the stator 120, and the ballast water passing through these radial flow passages can obtain a smooth fluid flow and receive a considerable external pressure during the flow, so that the plankton and the microbial killing efficiency Can be increased.

In addition, the flexible members 122 and 132 are made of a plurality of flexible elements that are individually coupled to the respective blades 121a and 131a. The flexible element is configured to be coupled to and detachable from the stator 120 or the rotor 130 through the fastening means 20. [ Therefore, replacement and maintenance of the crushing means 121, 131 of the stator 120 and the rotor 130 are easy.

2, the stator 120 is disposed at a lower portion of the housing 110, the rotor 130 is disposed at an upper portion of the stator 120, and the motor 140, which drives the rotor 130, (110). That is, the physical processing apparatus 100 according to the present invention is a vertical type apparatus in which components are arranged in a vertical direction. Accordingly, when installing the recycling processing apparatus 100 according to the present invention on a ship, the constraint of the installation space can be minimized.

Preferably, the housing 110 can be simply installed in the inlet pipe 12 through the flange pipe. Referring to FIG. 2, the housing 110 is provided with an inlet flange 111 through which the ballast water is introduced into one side, and a discharge flange 112 through which the ballast water is discharged from the other side. The inlet flange 111 and the outlet flange 112 are connected to the inlet pipe 12. The ballast water flowing into the housing 110 through the inflow flange 111 is crushed while passing through the radial flow path between the rotor 130 and the stator 120 and then discharged through the discharge flange 112 to the housing 110, And is discharged to the outside.

9a to 9f, a physical treatment apparatus 100 of a marine ballast water treatment system according to the present invention may be arranged in various positions within a ship to provide in-ballasting ) Step, a de-ballasting or in-ballasting step of discharging ship ballast water out of the vessel and the vessel ballast water in both the de-ballasting step and the de-ballasting step.

Referring to FIG. 9A, the physical processing apparatus 100 may be installed in front of the main processing apparatus 200. FIG. In this configuration, the ballast water is pretreated in the phosphorus-ballasting step, and the pretreated ballast water is introduced into the main processing unit 200, is killed by the oxidant, and then stored in the ballast tank 11.

Referring to FIG. 9B, the physical processing apparatus 100 may be installed between the main processing apparatus 200 and the ballast tank 11. In this configuration, the ballast water is killed through the main processing unit 200 in the in-ballasting step and then stored in the ballast tank 11 after being post-processed in the physical processing unit 100.

Referring to FIG. 9C, the physical processing apparatus 100 may be installed at the rear end of the ballast tank 11. In this configuration, the ballast water is discharged to the outside of the ship after being post-treated by the physical treatment apparatus 100 in the de-ballasting step.

Referring to FIG. 9D, the physical processing apparatus 100 may be installed at the rear end of the ballast tank 11. The UV apparatus 300 may be installed between the physical processing apparatus 100 and the ballast tank 11. [ In this configuration, the ship ballast water is discharged to the outside of the ship after being post-treated in the UV apparatus 300 and the physical treatment apparatus 100 in the de-ballasting step.

9E and 9F, the physical processing apparatus 100 is installed at a position where the inflow pipe 12 and the discharge pipe 14 connected to the ballast tank 11 cross each other, and the front end of the main processing apparatus 200 and the front end It can be installed at the rear end. In these arrangements, the marine equilibrium number can be processed by the physical processing apparatus 100 in both the in-ballasting step and the de-ballasting step.

Referring to FIGS. 10A and 10B, the physical treatment apparatus of the present invention may further include a cyclone apparatus 400 for filtering foreign matter contained in the ballast water using centrifugal force. The cyclone device 400 is a hollow member in the form of a supersonic wave with an inlet pipe 410 at an upper portion thereof and an outlet 420 at an upper end thereof and a drain 430 at a lower end thereof, 12 to filter foreign matter contained in the ship ballast water before the ballast water is introduced into the physical treatment apparatus 100. [ Of course, the cyclone device 400 may be installed on the rear end side of the inflow pipe 12. [

The embodiments of the present invention described above are merely illustrative of the technical idea of the present invention, and the scope of protection of the present invention should be interpreted according to the claims. 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 and scope of the invention as defined by the appended claims. It should be interpreted that it is included in the scope of right.

Claims (10)

A physical treatment apparatus of a ship ballast water treatment system installed in a ship ballast water inflow pipe for treating plankton and microorganisms contained in the ballast water,
A housing connected to the inflow pipe and having a flow passage for allowing the ballast water to pass therethrough;
A stator housed in the housing and having grinding means at one side;
And a rotor provided in the housing so as to face the stator and having a crushing means corresponding to the crushing means of the stator,
Characterized in that the crushing means of the stator and the crushing means of the rotor have a shape that rotates in conjunction with each other and that the plankton and the microorganisms of the ship equilibrium water are killed by the shear force and the pressure difference during rotation. Processing device.
The method according to claim 1,
Wherein the stator has a flexible member having a greater elasticity than the grinding means of the stator and the grinding means of the stator is coupled to the end of the flexible member.
The method according to claim 1,
Wherein the rotor has a flexible member having a greater elasticity than the crushing means of the rotor, and the end of the flexible member is coupled to the crushing means of the rotor.
4. The method according to any one of claims 1 to 3,
Wherein the grinding means comprises a plurality of blades, the blades having a radial pattern radially and circumferentially spaced apart.
The method of claim 3,
Wherein the flexible member comprises a plurality of flexible elements that are individually coupled to each of the blades. ≪ RTI ID = 0.0 >< / RTI >
6. The method of claim 5,
Wherein the blades and the flexible elements are coupled to and detachable from the stator or the rotor via fastening means.
The method according to claim 1,
Wherein the stator is disposed at a lower portion of the housing, the rotor is disposed at an upper portion of the stator, and a motor for driving the rotor is disposed at an upper portion of the housing.
The method according to claim 1,
Wherein the housing has an inlet flange on one side and a discharge flange on the other side and the inlet flange and the outlet flange are connected to the ship ballast water inflow pipe.
The method according to claim 1,
The vessel ballast water treatment system is installed at the front end or the rear end of the main processing apparatus for treating ship ballast water using the oxidizing agent and processes the ballast water in both the in-ballasting step, the de-ballusting step or the in-ballasting step and the de- Wherein the apparatus for treating the ballast water of the marine vessel is provided.
The method according to claim 1,
And a cyclone device for filtering out foreign substances contained in the ballast water using centrifugal force, wherein the cyclone device is installed on the front end side of the inflow pipe for treating the ballast water before entering the housing. An apparatus for physical treatment of a ballast water treatment system.

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