KR102259409B1 - Apparatus for concentrating sampling water - Google Patents

Abstract

The present invention relates to a concentrating device, comprising: a housing having an inlet and an outlet to receive and discharge sample water; a mesh part installed inside the housing to collect aquatic organisms of a predetermined size or more included in the sample water introduced from the inlet part; a sample collection unit located at the lower side of the mesh unit and storing the aquatic organisms collected in the mesh unit; a first nozzle unit installed inside the mesh unit to spray washing water to the mesh unit; and a second nozzle unit installed between the outer side of the mesh unit and the inner wall of the housing and spraying washing water to the mesh unit; thereby automating the biological concentration operation and providing a concentrating device capable of concentrating more quickly and accurately. .

Description

Apparatus for concentrating sampling water

The present invention relates to a concentrator. More particularly, it relates to a concentrating device that allows the aquatic organisms contained in the sample water to be concentrated easily and quickly.

In general, ballast water or ballast water is stored in the ballast tank installed on the ship so that the ship can maintain balance when the ship is operated in a state where cargo is unloaded from the ship or the amount of cargo loaded on the ship is very small. It means filling seawater.

Since various kinds of aquatic organisms inhabit this ballast water, if it is discharged from other areas without any treatment, there is a high risk of causing serious marine pollution and destruction of the ecosystem.

Accordingly, the International Maritime Organization (IMO) concluded an international agreement to have the equipment necessary for the sterilization and purification of ballast water be mounted on the ship.

Since the ballast water treatment system mounted on a ship must go through an onshore test and onboard test in accordance with the standards of the International Maritime Organization (IMO), and receive a certificate before operating, the ballast water treated by the ballast water treatment system must be operated by the International Maritime Organization. A system to monitor whether the emission standards specified in the

However, in order to monitor the concentration of living organisms contained in the treated ballast water, a sample concentration operation is required. Conventionally, the concentration operation was performed manually, and if aquatic organisms are caught or caught in the mesh, the organisms are collected by shaking them. There was a problem that it took a lot of time to do it.

Korean Patent Publication No. 10-2017-0012612

The present invention has been devised to solve the above problems, and in particular, it is an object of the present invention to provide a concentrating device capable of concentrating aquatic organisms quickly, accurately and automatically.

A concentrating device according to one aspect of the present invention devised to achieve the above object includes: a housing provided with an inlet and an outlet to receive and discharge sample water; a mesh part installed inside the housing to collect aquatic organisms of a predetermined size or more included in the sample water introduced from the inlet part; a sample collection unit located at the lower side of the mesh unit and storing the aquatic organisms collected in the mesh unit; a first nozzle unit installed inside the mesh unit to spray washing water to the mesh unit; and a second nozzle unit installed between the outer side of the mesh unit and the inner wall of the housing to spray washing water into the mesh unit.

In an embodiment of the present invention, the first nozzle unit may include an injection nozzle located at the lower end, and a driving unit for moving the injection nozzle in the vertical direction.

Here, the driving unit is installed through the upper side of the housing, the cylinder is provided with an inner space; a rod member that penetrates the lower part of the cylinder and is installed movably in the vertical direction, the lower end of which is installed with an injection nozzle; a sliding member extending from one side of the outer circumferential surface of the rod member to the inner wall of the cylinder in the circumferential direction to divide the inner space into an upper space and a lower space; and an air injection unit for injecting air into the upper space and the lower space, respectively.

In addition, the rod member may be formed hollow inside to receive the washing water from the upper end and supply it to the spray nozzle at the lower end.

In an embodiment of the present invention, the second nozzle unit is formed of a hollow pipe, and a plurality of through-holes may be provided along the longitudinal direction.

In the concentrating apparatus according to an embodiment of the present invention, the connection portion between the lower end of the mesh unit and the upper end of the sample collecting unit may be formed to be tapered so that the cross-sectional area decreases toward the lower side.

In addition, the inlet of the housing may be connected to the sample water inlet pipe, and a flow meter may be installed in the inlet pipe.

In addition, the concentrating device according to an embodiment of the present invention further includes a washing water collecting unit for collecting at least a portion of the sample water filtered from the mesh unit, and the washing water collecting unit and the first nozzle to supply the sample water of the washing water collecting unit as washing water. A washing water supply pipe connecting the unit or the second nozzle unit may be provided, and a pump may be installed in the washing water supply pipe.

On the other hand, the concentrator according to another aspect of the present invention, a housing provided with an inlet and an outlet to receive and discharge sample water; a mesh part installed inside the housing to collect aquatic organisms of a predetermined size or more included in the sample water introduced from the inlet part; a sample collection unit located at the lower side of the mesh unit and storing the aquatic organisms collected in the mesh unit; a first nozzle unit installed inside the mesh unit to spray washing water to the mesh unit; and a driving unit for driving the first nozzle unit in the vertical direction.

According to the present invention, it is possible to concentrate the sample more quickly and accurately by spraying the washing water from the inside of the mesh part by the first nozzle part moving up and down so that the sample caught in the mesh part (for example, aquatic life) is separated.

In addition, according to the present invention, there is an effect that the sample can be concentrated without clogging by spraying the washing water from the outside of the mesh part by the second nozzle part to separate the sample caught in the mesh part and performing backflushing of the mesh part.

In addition, according to the present invention, it is not necessary to add a separate washing water supply line by recycling a part of the sample water that has passed through the mesh unit as washing water.

1 is a block diagram showing a concentrating apparatus according to an embodiment of the present invention,
Figure 2 is a block diagram showing a concentrating device according to an embodiment of the present invention in the step of concentrating the sample water,
3 is a block diagram showing a concentrating device according to an embodiment of the present invention in the backwashing step.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to elements of each drawing, it should be noted that the same elements are assigned the same numerals as possible, even if they are indicated on different drawings. In addition, in describing the present invention, when it is determined that a detailed description of a related known configuration or function may obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, a preferred embodiment of the present invention will be described below, but the technical idea of the present invention is not limited or limited thereto, and may be modified and variously implemented by a person skilled in the art.

1 is a block diagram showing a concentrating device according to an embodiment of the present invention.

As shown in FIG. 1 , the concentrating device 100 according to an embodiment of the present invention includes a housing 101 for receiving and discharging sample water to sample aquatic organisms included in ballast water, and a housing 101 ) is installed on the inside and includes a mesh portion 103 for filtering aquatic organisms.

The ballast water treatment device is a device that sterilizes ballast water flowing into a ship, and uses various methods such as electrolysis or chemical injection of ballast water flowing in during ballasting to introduce ballast water into a ship. will be processed with

The ballast water treated in this way flows into a ballast tank (not shown), is stored, and is discharged out of the ship during deballasting.

It should be judged whether the discharged ballast water meets the emission standards (IMO D-2 standard) prescribed by the International Maritime Organization. For this purpose, the discharged ballast water is sampled and concentrated to determine whether aquatic life meets the emission standards. will measure

The concentrating device 100 according to an embodiment of the present invention includes a housing 101 provided with an inlet 101a and an outlet 101b so as to receive and discharge sample water sampled from some of the discharged ballast water. And, a mesh portion (mesh, 103) for filtering out aquatic organisms of a predetermined size or more included in the sample water is provided.

Here, the inlet portion 101a of the housing 101 is connected to an inlet pipe 111 through which the sample water is introduced, and the inlet pipe 111 is a flow meter to measure the flow rate of the sample water flowing in through the inlet pipe 111 . A 112 is installed, and an inflow pump 113 is installed to control the inflow flow rate of the sample water.

On the lower side of the housing 101, for example, at the lower edge, a discharge unit 101b is formed to discharge the sample water that has passed through the mesh unit 103, and the discharge unit 101b is a sample water discharge pipe 114. This is connected, and a discharge valve 115 is installed in the sample water discharge pipe 114 . In the state in which the discharge valve 115 is opened, the sample water is discharged to a drain tank (not shown) through the sample water discharge pipe 114 .

The mesh unit 103 is installed inside the housing and is composed of a filter or a sieve having fine eyes of a predetermined size to filter and collect aquatic organisms of a predetermined size or more included in the sample water introduced from the inflow pipe 111. It can be, and its shape can also be configured in various ways.

For example, the mesh unit 103 may be configured to be installed in a funnel shape that becomes narrower toward the lower side so that the concentrated aquatic organisms are gathered toward the outlet by gravity. As another embodiment, in FIG. 1, the mesh part 103 is formed in a hollow cylindrical shape and is located in the center of the housing 101, the first area 141 where the aquatic organisms that are primarily filtered and collected from the mesh part 103 are located. , may be configured to distinguish the second region 142 in which the number of samples passing through the mesh unit 103 is located.

Here, the mesh portion 103 may be formed of a nylon or stainless material that has excellent durability and corrosion resistance, and can be processed to have flexibility.

A sample collection unit 104 in which the aquatic organisms collected in the mesh unit 103 are concentrated and stored is located below the first region 141 , that is, below the mesh unit 103 .

In the concentrating apparatus 100 according to an embodiment of the present invention, the connection portion 101c between the lower end of the mesh portion 103 and the upper end of the sample collecting portion 104 is formed to be tapered so that the cross-sectional area decreases toward the bottom, thereby the mesh portion The aquatic organisms collected in step 103 may be gathered downward by gravity and collected in the sample collection unit 104 .

At the lower end of the sample collection unit 104, a sample discharge pipe 116 is connected to discharge concentrated and stored aquatic organisms, and a sample discharge valve 117 is installed in the sample discharge pipe 116 to complete the concentration of aquatic organisms. The concentrated sample water is configured to be discharged.

Meanwhile, a water level sensor (not shown) may be installed on the side of the housing 101 to measure the level of the sample water flowing into the housing 101 .

The concentrating device 100 according to an embodiment of the present invention has a first nozzle part 120 and a second nozzle part (120) on the inside and outside of the mesh part 103, respectively, to prevent clogging of the mesh part 103 described above. 130) is provided.

The first nozzle part 120 is installed inside the mesh part to spray the washing water into the mesh part 103 . In particular, in one embodiment of the present invention, the injection nozzle 121 located at the bottom moves up and down and has a cylindrical shape. The mesh portion 103 is configured to evenly wash the entire inside.

Looking at the configuration of the first nozzle unit 120 in more detail, it may include an injection nozzle 121 located at the lower end, and a driving unit for moving the injection nozzle 121 in the vertical direction.

The driving unit of the present invention may be implemented by various means for moving the injection nozzle 121 in the vertical direction, for example, an electric motor and a gear unit.

In one embodiment of the present invention, the driving unit is installed through the upper side of the housing 101 so as to be driven by the pressure of compressed air, and the cylinder 123 having an interior space is provided through the lower part of the cylinder 123 . A rod member 125 installed movably in the vertical direction and having a spray nozzle 121 installed at the lower end thereof, and one side of the outer circumferential surface of the rod member 125 are installed to extend from one side to the inner wall of the cylinder 123 in the circumferential direction. It may include a sliding member 127 dividing the space into an upper space and a lower space, and an air injection unit 129 for injecting air into the upper space and the lower space, respectively.

Here, the rod 125, it is preferable that the inside is hollow to receive the washing water from the upper end and supply it to the spray nozzle at the lower end.

The air injection unit 129 selectively injects compressed air into the upper space and the lower space partitioned by the sliding member 127, respectively, to generate a pressure difference between the upper space and the lower space to move the sliding member 127. and, accordingly, is configured to move the rod member 125 coupled to the sliding member 127 . In addition, an air valve 128 is installed on the flow path to block or introduce air injected from the air injection unit 129 .

The concentrating device 100 according to an embodiment of the present invention is located inside the cylindrical mesh part 103 as described above and moves up and down in addition to the first nozzle part 120 for washing the mesh part 103 . A second nozzle unit 130 positioned outside the cylindrical mesh unit 103 to wash the mesh unit 103 may be further included.

At least one second nozzle unit 130 is installed between the outer side of the cylindrical mesh unit 103 and the inner wall of the housing 101 to spray washing water into the mesh unit 103 , and the first nozzle unit 120 and It may be implemented with the same configuration, or may be implemented with an electric motor and a gear unit.

In an embodiment of the present invention, the second nozzle unit 130 is formed of a hollow pipe having a simple structure without a separate driving means, a plurality of through holes 131 are provided along the longitudinal direction, and the length is approximately mesh. By extending to correspond to the portion 103 is configured to be able to backflushing the mesh portion (103).

On the other hand, the concentrating device 100 according to an embodiment of the present invention may be configured to recycle a portion of the sample water passing through the mesh unit 103 as washing water so that there is no need to add a separate washing water supply line. That is, the concentrating device 100 further includes a washing water collecting unit 151 for collecting at least a portion of the sample water filtered by the mesh unit 103 , and washing water to supply the sample water of the washing water collecting unit 151 as washing water. A washing water supply pipe 152 connecting the collecting unit 151 and the first nozzle unit 120 or the second nozzle unit 130 may be provided.

Here, a pump 153 is installed in the washing water supply pipe 152 so that the washing water is pressurized and supplied to the first nozzle unit 120 and/or the second nozzle unit 130 .

In addition, a three-way selection valve 154 is installed in the washing water supply pipe 152 to selectively supply washing water to the first nozzle unit 120 and/or the second nozzle unit 130 .

As described above, the concentrating device 100 according to an embodiment of the present invention is a manual operation of periodically shaking or shaking aquatic organisms or foreign substances caught in the mesh portion 103 in the conventional sample water concentration operation. However, in the embodiment of the present invention, the mesh part 103 is provided with the first nozzle part 120 and/or the second nozzle part 130 to generate water flow inside and/or outside the cylindrical mesh part 103 . ), it is possible to automate the bioconcentration operation by allowing aquatic organisms or foreign substances caught in the mesh to be automatically separated from the mesh unit 103 .

In the present invention, a control unit (not shown) is provided to control the inflow pump 113 and the discharge valve 115 based on the flow rate of the inflow sample water measured through the flowmeter 112 in the concentrator 100 of the present invention. It becomes possible to automatically concentrate the sample number of the target volume. This makes it possible to calculate the distribution and concentration of aquatic organisms.

On the other hand, the concentrating apparatus 100 according to an embodiment of the present invention may be installed alone, but may be installed inside the outer case 10 .

2 is a block diagram showing a concentrating apparatus according to an embodiment of the present invention in the step of concentrating the sample water, and FIG. 3 is a block diagram showing the concentrating apparatus according to an embodiment of the present invention in the washing step.

A concentration operation and a washing operation using the concentration apparatus 100 according to an embodiment of the present invention will be described with reference to FIGS. 2 and 3 .

First, the sample water concentration step is started by operating the inlet pump 113 to transfer the water (sample water) to be collected aquatic organisms, as shown in FIG. 2 . At this time, the flow rate of the incoming sample water is integrated by the flow meter 112 .

The sample water containing a large amount of aquatic organisms introduced into the housing 100 is filtered through the mesh unit 103 . As described above, aquatic organisms larger than the eyes of the mesh unit 103 do not pass through the mesh unit 103 and are present in the first area 141, and only the number of samples that have passed through the mesh unit 103 can pass through the second area ( 142) through which it is discharged. A portion of the sample water is not discharged and is stored in the washing water collection unit 151 .

Thereafter, the aquatic organisms existing in the first region 141 descend by gravity and are deposited in the sample collection unit 104 .

This series of processes is repeated while the inlet pump 113 is operated, and the concentration of the sample water is performed to the target capacity. As the amount of fluid transferred by the inlet pump 113 increases, the amount of aquatic organisms concentrated or collected in the sample collection unit 104 increases. The flow rate of the sample water transferred through the inlet pump 113 is accumulated through the flow meter 112, and based on this, the distribution and concentration of aquatic organisms can be grasped.

Here, the target capacity may vary depending on the type of the number of samples to be collected. For example, the number of samples sampled from the ballast water discharged from the ballast tank (not shown) is converted to the concentrating device 100 according to the embodiment of the present invention. In the case of ballast water concentration, the concentration target capacity is 1 ton because, according to the IMO D-2 standard, aquatic organisms with a size of 50 μm or larger must be concentrated and analyzed from 1 ton of sample water.

Next, the washing step is performed as shown in FIG. 3 . In the sample water concentration process (or aquatic life collection process) of FIG. 2 , a clogging phenomenon occurs due to some of the aquatic organisms being caught in the mesh part 103, so at a certain period (or non-periodically, when a predetermined differential pressure or more occurs, etc.) The cleaning process must be performed.

The water stored in the washing water collection unit 151 is transferred to the first nozzle unit 120 and the second nozzle unit 130 using a pump 153, respectively, and the washing water is sprayed with a strong pressure.

Looking at the operation of the first nozzle part 120, compressed air is introduced into the first nozzle part 120 by adjusting the air pressure in the air injection part 129, and the first nozzle part 120 is moved up and down by the compressed air. to make a reciprocating motion. Accordingly, the injection nozzle 121 provided at the lower end of the first nozzle unit 120 is moved up and down, and the mesh unit 103 is uniformly sprayed all over the top and bottom from the inside to the outside, so that a high cleaning effect can be obtained.

In the second nozzle unit 130 , the washing water is strongly sprayed from the outside to the inside of the mesh unit 103 by the injection pressure of the washing water and backwashed, so that the aquatic organisms caught in the mesh unit 103 are removed from the mesh unit 103 . will be separated In the embodiment of the present invention, a plurality of second nozzle units 130 are provided in the form of nozzle tubes, so that the sprayed washing water can wash not only the mesh unit 103 but also the inside of the housing 101 . The aquatic organisms separated from the mesh unit 103 or the housing 101 are moved downward by gravity and pass through the sample collection unit 104 or are immediately discharged.

As described above, the concentrating apparatus 100 according to an embodiment of the present invention is provided with the first nozzle part 120 and the second nozzle part 130 at the same time to the inner and outer directions of the mesh part 130 . Simultaneously/or selectively spraying washing water has an effect of effectively separating and separating aquatic organisms or foreign substances caught in the mesh unit 103 from the mesh unit 103 .

In addition, since it is impossible to backwash the entire mesh part 103 at once with one fixed water flow generator included in the conventional backwashing device, it is configured to arrange a plurality of them, but the first in the concentrating device 100 of the present invention The nozzle unit 120 is configured to move up and down, so that the entire mesh unit 103 can be backwashed while sufficiently securing the flow space inside the concentrating device 100 .

Concentrator 100 according to an embodiment of the present invention, as described above, not only can be applied to the IMO D-2 standard biological death test, but is also automated by variously applied to an apparatus for measuring the concentration of aquatic organisms. , can be used as a more accurate means of concentration.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the technical field to which the present invention pertains can make various modifications, changes, and substitutions within the scope not departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but are for illustration, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

100: concentrator
101: housing
103: mesh part
104: sample collection unit
120: first nozzle unit
121: spray nozzle
123: cylinder
125: rod member
127: sliding member
129: air inlet
130: second nozzle unit
151: washing water collection unit

Claims (9)

a housing having an inlet and an outlet to receive and discharge the sample water;
a mesh part installed inside the housing to collect aquatic organisms of a predetermined size or more included in the sample water introduced from the inlet part;
a sample collection unit located at the lower side of the mesh unit and storing the aquatic organisms collected in the mesh unit;
a first nozzle unit installed inside the mesh unit to spray washing water to the mesh unit; and
A second nozzle part installed between the outer side of the mesh part and the inner wall of the housing to spray the washing water into the mesh part; including,
The first nozzle unit,
It includes an injection nozzle located at the lower end, and a driving unit for moving the injection nozzle in the vertical direction,
drive unit,
a cylinder installed through the upper side of the housing and having an internal space;
a rod member that penetrates the lower part of the cylinder and is installed movably in the vertical direction, the lower end of which is installed with an injection nozzle;
a sliding member extending from one side of the outer circumferential surface of the rod member to the inner wall of the cylinder in the circumferential direction to divide the inner space into an upper space and a lower space; and
Concentrating device, including; air injection unit for injecting air into the upper space and the lower space, respectively.
delete delete The method according to claim 1,
rod member,
Concentrating device, which is hollow inside to receive washing water from the top and supply it to the spray nozzle at the bottom.
The method according to claim 1,
The second nozzle unit,
A concentrating device formed of a hollow pipe and provided with a plurality of through-holes along the longitudinal direction.
The method according to claim 1,
The connection part between the lower end of the mesh unit and the upper end of the sample collection unit,
Concentrating device, which is formed to be tapered so that the cross-sectional area decreases as it goes downward.
The method according to claim 1,
The inlet of the housing is connected to the sample water inlet pipe,
Concentrator, in which a flow meter is installed in the inlet pipe.
The method of claim 7,
Further comprising a collection unit for collecting at least a portion of the number of samples filtered from the mesh unit,
A concentrating device comprising: a washing water supply pipe connecting the collecting unit and the first nozzle unit or the second nozzle unit to supply the sample water of the collecting unit as washing water; and a pump installed in the washing water supply pipe.
delete

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