WO2020235739A1 - Concentrating apparatus - Google Patents

Abstract

The present invention relates to a concentrating apparatus comprising: a chamber having an inlet and an outlet for receiving and discharging sample water; and a UV lamp for irradiating ultraviolet rays on the inner side of the chamber, wherein the UV lamp is configured so as to irradiate ultraviolet rays on a portion of the total area of the inner side of the chamber so that the inner side of the chamber is divided into a UV irradiation area on which ultraviolet rays are irradiated, and a non-UV irradiation area on which ultraviolet rays are not irradiated.

Description

Thickening device

The present invention relates to a concentrating device, and more particularly, to a concentrating device capable of rapidly and accurately concentrating aquatic organisms contained in sample water.

In general, ballast water or ballast water is used in ballast tanks installed on the ship to maintain balance when the ship is operated with cargo unloaded from the ship or when the amount of cargo loaded on the ship is very small. It refers to the seawater to be filled.

Since various aquatic organisms inhabit these ballast waters, there is a high concern that serious marine pollution and ecosystem destruction are caused if they are discharged from other areas without any treatment.

Accordingly, the International Maritime Organization (IMO) concluded an international agreement to equip ships with devices necessary for sterilization and purification of ballast water.

The ballast water treatment system mounted on a ship must be operated after receiving a certificate after undergoing a land test and a ship test in accordance with the standards of the International Maritime Organization (IMO), so the ballast water treated by the ballast water treatment system There is a need for a system to monitor compliance with the emission standards specified by the organization.

However, in order to monitor the concentration of organisms contained in the treated ballast water, the concentration of the sample is required. Conventionally, the concentration of sample water flowing from the sample water inlet pipe was manually performed, and aquatic organisms were added to the mesh during the concentration operation. If it is stuck or caught, there is a problem that it takes a very long time because it is necessary to collect the living thing while brushing it off.

The present invention was conceived to solve the above problems, and in particular, it is an object of the present invention to provide a concentrating device capable of rapidly, accurately and automatically concentrating aquatic organisms.

The concentrating device according to an embodiment of the present invention devised to achieve the above object includes: a chamber provided with an inlet and an outlet to receive and discharge sample water; And a UV lamp that irradiates ultraviolet rays into the chamber; including, the UV lamp is configured to irradiate ultraviolet rays to a partial area of the entire area inside the chamber, so that the inside of the chamber is a UV irradiation area where ultraviolet rays are irradiated, and the ultraviolet rays are not irradiated. It can be divided into non-UV irradiation areas.

In one embodiment of the present invention, the chamber is provided with a blocking member that blocks ultraviolet rays between the UV irradiation region and the non-UV irradiation region, and the UV lamp may be installed in the UV irradiation region.

Here, the blocking member includes at least first and second perforated sheets facing each other and spaced apart from each other, and the holes of the first perforated sheet and the holes of the second perforated sheet may be disposed so as not to overlap each other along the through direction. .

Further, the blocking member may be made of an opaque material.

In one embodiment of the present invention, the chamber may be provided with a discharge part in the UV irradiation area and an inlet part in the non-UV irradiation area.

In addition, in the chamber, the UV irradiation area may be located at the top, and the non-UV irradiation area may be located at the bottom of the UV irradiation area.

Here, the holes of the first and second perforated sheets are formed in a circular shape, and the separation distance of the first and second perforated sheets and/or the position of the holes of the second perforated sheet are the hole diameter of the first perforated sheet and the UV lamp. It can be determined in consideration of the diffraction angle θ based on the wavelength.

Here, the wavelength of the UV lamp may range from 100 nm to 400 nm.

The concentrating device according to an embodiment of the present invention includes an inlet pipe and a discharge pipe respectively connected to the inlet and discharge portions, an inlet valve and a discharge valve respectively installed in the inlet pipe and the discharge pipe, and a flow meter installed in the inlet pipe. And, it may further include a control unit for opening and closing the inlet valve and the discharge valve to control the inlet and discharge of the sample water.

Here, the controller may control the inlet valve to close when a certain amount is introduced based on the sample water inlet flow rate measured by the flow meter.

In addition, the controller may calculate the flow rate based on the sample water inflow flow rate measured by the flow meter, and control the flow rate to decrease by controlling the inlet valve when the calculated flow rate is higher than a threshold value.

On the other hand, the chamber according to an embodiment of the present invention may be further provided with a drain pipe and a drain valve connected to the lower side of the UV non-irradiation area to collect aquatic organisms.

According to the present invention, by installing a UV lamp in the chamber, there is an effect that aquatic organisms can be conveniently concentrated without a mesh that filters aquatic organisms.

In addition, according to the present invention, by removing the configuration of the mesh, there is an effect of improving the manual concentration process in which aquatic organisms are trapped in the conventional mesh and collected organisms while dusting them, thereby enabling the concentration operation to be performed more quickly and automatically.

1 is a block diagram of a concentration device according to an embodiment of the present invention,

2 is a plan view of a perforated sheet provided in the thickening device according to an embodiment of the present invention,

Figure 3 is a cross-sectional view in the direction A-A' of the perforated sheet of Figure 2 according to an embodiment of the present invention,

Figure 4 is a cross-sectional view in the direction A-A' of the perforated sheet of Figure 2 according to another embodiment of the present invention,

5 is a configuration diagram of a concentrating device according to another embodiment of the present invention,

6 shows the diffraction effect in the perforated sheet provided in the concentrator according to the present invention.

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 have the same numerals as possible, even if they are indicated on different drawings. In addition, in describing the present invention, if 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 thereto or is not limited thereto, and may be modified and variously implemented by a person skilled in the art.

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

As shown in FIG. 1, the concentrating device 100 according to the embodiment of the present invention irradiates ultraviolet rays to the inside of the chamber 110 and the chamber 110 so that a partial area of the entire area inside the chamber 110 is It includes a UV lamp 110 irradiated with ultraviolet rays and not irradiated with ultraviolet rays in other areas.

The chamber 110 is provided with an inlet 111 through which sample water is introduced and a discharge unit 113 through which sample water is discharged. In addition, the inlet 111 and the outlet 113 of the chamber 110 are connected to the inlet pipe 141 and the outlet pipe 151, respectively.

An inlet valve 143 for adjusting the sample water inflow flow rate may be installed in the inlet pipe 141, and a flow meter 145 for measuring the sample water inflow flow rate may be installed. In addition, a discharge valve 153 is installed in the discharge pipe 151 to adjust the discharge flow rate of sample water discharged after flowing into the chamber 110.

In addition, the lower end of the chamber 110 may be formed to be tapered so that the concentrated aquatic organisms may be collected at the lowermost end by gravity. Here, a drain pipe 161 is connected to the lower end of the tapered chamber 110, and a drain valve 163 is installed in the drain pipe 161 to collect concentrated aquatic organisms and discharge them to the outside of the chamber 110 by a predetermined amount. You can do it.

In one embodiment of the present invention, by receiving the measurement signal from the flow meter 145 described above and controlling the degree of opening of the inlet valve 143, the discharge valve 153, and the drain valve 163, sample water is automatically introduced and discharged. It further includes a control unit 170 to be controlled.

Here, the control unit 170 controls the inlet valve 143 to close when a certain amount is introduced based on the sample water inlet flow rate measured by the flow meter 145, so that a certain amount (for example, based on IMD D-2, Organisms of 50 μm or more can concentrate 1 ton for analysis) to concentrate the number of samples meeting a predetermined standard.

In addition, the control unit 170 may calculate a flow rate based on the sample water inflow flow rate measured by the flow meter 145, and control the inflow valve 143 to lower the flow rate when the calculated flow rate is higher than a threshold value. have. For example, the threshold may be set in consideration of the moving speed of aquatic organisms. That is, by controlling the inlet valve 143 to be sufficiently slower than the moving speed of the aquatic organisms, the inlet flow rate is collected in the UV-non-irradiation area located at the inlet part 111 of the chamber 110 in the embodiment of FIG. It is possible to minimize the impact on aquatic organisms.

The UV lamp 110 may be installed on the upper part of the chamber 110 so as to irradiate ultraviolet rays downward from the inside of the chamber 110, and may be configured as a surface light emitting body to evenly irradiate ultraviolet rays over a large area. In addition, the wavelength of the UV lamp 110 is preferably in the range of 100nm to 400nm in consideration of the inactivation effect of aquatic organisms.

On the other hand, in the chamber 110 of the concentrating device 100 according to an embodiment of the present invention, the interior of the chamber 110 is separated from the UV lamp 110 to more clearly distinguish the area irradiated with ultraviolet rays and the area non-irradiated. A blocking member may be further included.

In the present invention, as an embodiment of the blocking member, it is possible to apply a perforated sheet 120 in which a plurality of through holes 121 are formed, preventing ultraviolet rays from leaking through the holes 121 of the perforated sheet 120 It is preferable that a plurality of them are spaced apart and overlapped to be installed. For example, in the embodiment of FIG. 1, it consists of two of a first perforated sheet 120a and a second perforated sheet 120b that are installed facing each other and spaced apart.

Here, it is preferable that the holes 121 of the first perforated sheet 120a and the holes 121 of the second perforated sheet 120b are disposed not to overlap each other along the penetrating direction, and as an embodiment, they are arranged in a zigzag shape. By doing so, it is possible to prevent the ultraviolet rays from leaking through the hole 121.

In addition, the first perforated sheet 120a and the second perforated sheet 120b used as blocking members to effectively block ultraviolet rays irradiated from the UV lamp 110 are preferably made of an opaque material.

FIG. 2 is a plan view of a perforated sheet provided in a concentrating device according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view in A-A' direction of the perforated sheet of FIG. 2 according to an embodiment of the present invention.

2 and 3, the perforated sheets 120 are spaced at regular intervals in the horizontal and vertical directions, and circular holes 121 are arranged in a rectangular shape as a whole along the shape of the perforated sheet 120. Here, the hole 121 may be formed so that the diameters of the upper and lower ends thereof are constant. In this case, there is an advantage in that the processing process of forming the hole 121 is simplified.

As another embodiment, in the cross-sectional view in A-A' direction of the perforated sheet 120 of FIG. 1 according to FIG. 4, the hole 123 may be formed in a shape tapering so that the diameter gradually decreases from the top to the bottom of the through. . By being formed in this way, the movement of aquatic organisms from the upper side of the perforated sheet 120 in the direction of the UV irradiation area (not shown) to the lower side of the UV non-irradiation area (not shown) is smooth, while the movement in the opposite direction is prevented. By suppressing it, it is possible to more effectively collect aquatic organisms that have moved to the non-UV irradiation area (not shown).

In particular, in the embodiment of Figure 4, by adding a protrusion 125 extending along the hole 123 at the lower end of the hole 123, it may be configured to further restrict the movement from the UV non-irradiated area to the UV irradiated area. have.

The holes 121 and 123 formed in the perforated sheet 120 shown in FIGS. 2 to 4 are configured to have a circular through shape, but the present invention is not limited thereto and is formed in various shapes as needed, such as an oval, a triangle, and a square. Of course it can be. Also, if necessary, not only one shape but also several shapes may be combined to form a combination. For example, the holes 121 and 123 in portions (edge portions) such as corners or corners of the perforated sheet 120 may be formed in a shape different from the shape of the holes 121 and 123 in the middle portion.

In one embodiment of the present invention, the discharge part 113 is provided in the UV irradiation area, the inlet part 111 is provided in the non-UV irradiation area, the inlet pipe 141 is connected to the lower part of the chamber 110, and the chamber ( Although the discharge pipe 151 is configured to be connected to the upper part of 110), the present invention is not limited thereto and may be installed vice versa. However, when the inlet pipe 141 and the discharge pipe 151 are installed at the lower and upper portions, respectively, as in the chamber 110 shown in FIG. 1, and the UV lamp 130 is configured to be installed on the upper side of the chamber 110 In the UV irradiation zone to which ultraviolet rays are irradiated, the aquatic organisms included in the sample water can be placed in the non-UV irradiated area immediately after the inflow of the aquatic organisms. You will be able to.

On the other hand, Figure 5 is a configuration diagram of a thickening device 200 according to another embodiment of the present invention. Referring to this, the perforated sheet 220 includes a first perforated sheet 220a, a second perforated sheet 220b, and a third It consists of a total of three perforated sheet (220c). The holes 221 formed in each of the three perforated sheets 220 may be arranged in a zigzag shape so as not to overlap each other. In this embodiment, since the number of perforated sheets 220 is increased compared to the embodiment of FIG. 1, it is possible to more effectively block ultraviolet rays irradiated from the UV lamp located in the UV irradiation area.

6 shows the diffraction effect in the perforated sheet provided in the concentrating device according to the present invention. Referring to FIG. 6, the ultraviolet rays 131 irradiated from a UV lamp (not shown) are holes in the perforated sheet 120. It breaks while passing through (121). The diffraction angle θ due to this diffraction effect can be defined by the following equation.

Here, d is the diameter of the hole, and λ is the wavelength of ultraviolet rays.

The concentrating device 100 according to the present invention is separated from the rear of the perforated sheet 120 in consideration of the diffraction effect that the ultraviolet rays 131 passing through the hole 121 are bent at a diffraction angle θ and enlarged in a substantially fan shape. A separation distance of another perforated sheet (not shown) and/or a hole position of another perforated sheet (not shown) so that the hole (not shown) of another perforated sheet (not shown) to be installed is located outside the area of the diffused ultraviolet ray 131 Can be set.

That is, when the hole of the perforated sheet 120 is formed in a circular shape, the distance between the perforated sheets and/or the position of the hole of the rear perforated sheet is the hole diameter (d) of the front perforated sheet 120 and the wavelength of the UV lamp (λ In consideration of the diffraction angle θ calculated based on Equation 1 for ), it may be determined that the ultraviolet rays 131 passing through the front perforated sheet 120 are blocked by the rear perforated sheet (not shown).

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 belongs 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 to explain, 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 interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

Claims (12)

A chamber provided with an inlet and an outlet to receive and discharge sample water; And Including; a UV lamp that irradiates ultraviolet rays into the chamber The UV lamp is configured to irradiate ultraviolet rays to a portion of the entire area inside the chamber, and the inside of the chamber is divided into a UV irradiation area where ultraviolet rays are irradiated and a UV non-irradiation area where ultraviolet rays are not irradiated. The method according to claim 1, Chamber, A blocking member that blocks ultraviolet rays is installed between the UV irradiation area and the UV non-irradiation area, UV lamp, A concentration device installed in the UV irradiation area. The method according to claim 2, The blocking member, Including at least first and second perforated sheets facing each other and installed spaced apart, The hole of the first perforated sheet and the hole of the second perforated sheet are arranged so as not to overlap each other along the through direction. The method of claim 3, The blocking member, Consisting of an opaque material, a thickening device. The method of claim 4, Chamber, A concentration device in which a discharge part is provided in the UV irradiation area and an inlet part is provided in the non-UV irradiation area. The method of claim 5, In the chamber, the UV irradiation area is located at the top, and the non-UV irradiation area is located at the bottom of the UV irradiation area. The method of claim 6, The holes of the first and second perforated sheets are formed in a circular shape, The separation distance of the first and second perforated sheets and/or the position of the holes in the second perforated sheet is determined by considering the diffraction angle (θ) based on the hole diameter of the first perforated sheet and the wavelength of the UV lamp. Device. The method of claim 7, The wavelength of the UV lamp is in the range of 100nm to 400nm. The method according to claim 1, An inlet pipe and an outlet pipe connected to the inlet and outlet, respectively, An inlet valve and a discharge valve respectively installed in the inlet pipe and the discharge pipe, A flow meter installed in the inlet pipe, Further comprising a control unit for opening and closing the inlet valve and the discharge valve to control the inlet and discharge of the sample water, the concentrating device. The method of claim 9, The control unit, If a certain amount is introduced based on the sample water inflow flow rate measured by the flow meter, A thickening device that controls the inlet valve to close. The method of claim 9, The control unit, Calculate the flow rate based on the sample water inflow flow rate measured by the flow meter, When the calculated flow rate is higher than the threshold value, the inlet valve is controlled to lower the flow rate. The method of claim 6, Chamber, It is connected to the lower side of the UV non-irradiation area, a drain pipe and a drain valve are further provided to collect aquatic organisms, a concentration device.

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