WO2018084416A1

WO2018084416A1 - Residual chlorine-measuring device having washing function

Info

Publication number: WO2018084416A1
Application number: PCT/KR2017/009697
Authority: WO
Inventors: 박규원; 김성태; 이해돈; 김대원; 정일희; 유관현; 류채형
Original assignee: (주) 테크로스
Priority date: 2016-11-03
Filing date: 2017-09-05
Publication date: 2018-05-11

Abstract

The present invention is a residual chlorine-measuring device having a washing function, comprising: a measurement cell provided with a central channel through which a specimen to be measured flows, with a specimen introduction channel allowing the specimen to flow into the central channel, and with a reagent introduction channel allowing a reagent to flow into the central channel; a sensor module which comprises a light-emitting part, installed on one side of the measurement cell, for emitting light to the central channel, a light-receiving part, installed on the other side of the measurement cell so as to be face-to-face with the light-emitting part, for receiving the light of the light-emitting part, and a transmission surface provided on the inside of the central channel such that the light emitted from the light-emitting part is transferred to the light-receiving part, and which measures the absorbency of the specimen in the central channel; and a washing module installed in the measurement cell so as to be reciprocatable in the central channel, and washing the transmission surface of the sensor module.

Description

Residual chlorine measuring device with cleaning function

The present invention relates to a residual chlorine measuring apparatus having a cleaning function capable of cleaning a portion through which light passes through the residual chlorine measuring apparatus.

Generally, cargo ships transported by sea are mostly one-way except for ships reciprocating to exchange similar cargoes. In addition, after returning to the full sail after the one-way operation, the ballast water (ballast water) is introduced into the ship and sailed in the ballast state for improving the balance, safety, and steering performance of the ship.

At this time, the ballast water is ballast water (ballast water) is introduced into the ship for the ballasting operation (in the case of ballast to improve the balance, safety and maneuvering performance of the ship, etc.) and sail in the ballast state. It is filled in one port and transported to another, and discharged in a new port through a deballasting operation. As such, the release of marine organisms and pathogens contained in ballast water carried from remote locations is not only harmful to the new environment, but can also be dangerous to both humans and animals in new ports.

Introducing non-natural marine life into new ecosystems can have destructive effects on natural flora and fauna that may not have natural defenses against new species. In addition, harmful bacterial pathogens such as cholera may be present in the original ports. These pathogens can multiply in the ballast tanks over time, causing disease in the areas where they are released.

In order to eliminate the risk posed by these marine organisms and pathogens, the ballast water is electrolyzed or injected with chemicals to sterilize during ballasting or deballasting. In 2004, the International Maritime Organization (IMO) adopted the Convention on the Regulation and Management of Ballast Water and Sediment Emissions, "allowing international sailing vessels to install a ballast water treatment system for navigation. It is expected that the market demand for residual chlorine measuring devices, one component of the processing equipment, will increase.

Currently, residual chlorine measuring devices are being manufactured and sold by various companies at home and abroad, and have been used for a long time in other fields such as water supply and environmental analysis. However, it is not a development product optimized for seawater, and if there are excessive residual ions such as seawater, and there are many measurement obstacles or poor water quality, there is a problem in that measurement cannot be made due to foreign substances in the measurement unit or the reliability is low.

Prior Art Document 1: Korea Utility Model Publication No. 20-0296425

Prior Art Document 2: Korean Patent Publication No. 10-0759531

The present invention has been invented to solve the above problems, by cleaning the light transmission portion of the residual chlorine measuring device, enabling a precise measurement and maintaining the buffering capacity of the buffer solution to improve the reliability It is an object of the present invention to provide a residual chlorine measuring apparatus having a.

In order to achieve the above object, the present invention provides a measurement cell having a center flow path for the sample to be measured flows, a sample inflow flow path for allowing the sample to flow into the center flow path and a reagent inflow flow path for the reagent to flow into the center flow path. ; A light emitting part installed on one side of the measuring cell and irradiating light toward the center channel, a light receiving part on the other side of the measuring cell facing the genital light emitting part, and receiving a light of the light emitting part; A sensor module including a transmissive surface provided on an inner surface of the center flow channel so as to be transmitted to the light receiving unit, and measuring a absorbance of a sample of the center flow path; And a cleaning module installed in the measurement cell so as to reciprocate in the center channel and cleaning the transmission surface of the sensor module.

Preferably, the cleaning module, the piston extending from the top of the measuring cell toward the center flow path and reciprocating by hydraulic or pneumatic; And a cleaning member installed at a lower end of the piston and cleaning the transmission surface of the sensor module while being in contact with the inner surface of the central flow path by the reciprocating movement of the piston.

In addition, the piston is characterized in that it is movable while rotating in the center passage.

Preferably, the cleaning member is a brush, silicone or rubber.

According to the present invention, the organic or inorganic substances attached to the transmission surface of the sensor module may be removed to maintain the optimal transmittance of light transmitted from the light emitting unit to the light receiving unit. In addition, it is possible to remove other samples included in the central flow path at the time of the previous measurement, that is, oxidant and interference. Therefore, it is possible to accurately measure the residual chlorine concentration by minimizing the error of the measured value of the sensor module, and improve the measurement reliability by increasing the buffer capacity of the buffer solution.

1 is a perspective view showing a residual chlorine measuring apparatus having a cleaning function according to the present invention,

2 is a cross-sectional view showing the configuration of a residual chlorine measuring device having a cleaning function according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the residual chlorine measuring apparatus having a cleaning function according to the present invention. For reference, in the following description of the present invention, terms referring to the components of the present invention are named in consideration of the function of each component, and should not be understood as a meaning of limiting the technical components of the present invention. Will be.

1 is a perspective view showing a residual chlorine measuring apparatus having a cleaning function according to the present invention, Figure 2 is a cross-sectional view showing the configuration of the residual chlorine measuring apparatus having a cleaning function according to the present invention.

1 and 2, the residual chlorine measuring device having a cleaning function according to the present invention is to measure the absorbance of the sample to be measured, for example, the measurement cell 100 into which the ballast water flows, the sample inside the measurement cell 100 It includes a sensor module 200 for measuring the residual chlorine concentration by measuring and the cleaning module 300 for cleaning the light transmission portion of the sensor module 200.

The measurement cell 100 includes a central flow path 110 formed to penetrate in the vertical direction from the center of the upper surface to the center of the lower surface of the measurement cell 100. In addition, the measurement cell 100 includes a sample inflow passage 120 that communicates from the lower side to the center passage 110 so that the sample to be measured flows into the center passage 110. In addition, the measurement cell 100 includes

reagent inflow paths

130 and 140 that communicate from the upper side of the sample inflow path 10 to the center flow path 110 to allow the reagent to flow into the center flow path 110. The

reagent inflow passages

130 and 140 are a colorant reagent inflow passage 130 which induces a color developing reagent that develops a sample when mixed with the sample toward the center passage 110, and a buffer solution inflow passage which buffers a pH change of the sample. 140). In addition, although not shown in the drawing, the sample outlet 150 provided at the lower end of the measurement cell 100 is provided with an on / off valve (not shown), and the sample, color reagent, and buffer with the on / off valve closed. The solution is mixed in the central flow path 110 to develop a sample.

The sensor module 200 includes a light emitting unit 210 and a light receiving unit 220 which are installed to face each other on the left and right sides of the measurement cell 100 with respect to the center channel 110. In addition, the sensor module 200 includes a transmission surface 230 provided on an inner surface of the central flow path 110 between the light emitting unit 210 and the light receiving unit 220. Referring to FIG. 2, the light emitter 210 is installed on the left side of the measurement cell 100 and irradiates light toward the center flow path 110. The light receiver 220 is installed on the right side of the measurement cell 100 to face the light emitter 210 and receives light emitted from the light emitter 210. Here, the light emitting unit 210 and the light receiving unit 220 may be installed in the receiving groove 160 formed on the side of the measuring cell 100 and may not be exposed to the outside of the measuring cell 100. In addition, the transmission surface 230 is provided on the inner surface of the central flow path 110 so that the light emitted from the light emitting unit 210 is transmitted to the light receiving unit 220 side. The sensor module 200 measures the absorbance of the light received by the light receiving unit 220 after the light emitted from the light emitting unit 210 passes through the colored sample of the central flow path 110, and quantifies the absorbance measurement value. To calculate the residual chlorine concentration.

The cleaning module 300 is installed in the measurement cell 100 so as to reciprocate in the center passage 110, that is, in the vertical direction. In addition, the cleaning module 300 cleans the transmission surface 230 of the sensor module 200 while being in contact with the inner surface of the central flow path 110 during movement.

Specifically, the cleaning module 300 is provided at the lower end of the piston 310 and the piston 310 extending into the central flow path 110 from the upper portion of the measurement cell 100, the transmission surface 230 of the sensor module 200 It includes a cleaning member 320 for cleaning.

The piston 310 is installed inside the cylinder 330 of the head 311 is provided on the upper portion of the measuring cell 100, and is reciprocated by hydraulic or pneumatic. In addition, the cleaning member 320 contacts the inner surface of the central flow path 110 while integrally moving with the piston 310 by the reciprocating movement of the piston 310 to clean the transmission surface 230 of the sensor module 200. do.

Here, the cleaning member 320 may be made of a material such as a brush, silicon or rubber, and may include these materials.

By such a configuration, when the piston 310 reciprocates, the cleaning member 320 can clean the transmission surface 230 of the sensor module 200 while reciprocating integrally with the piston 310. Then, the organic or inorganic materials attached to the transmission surface 230 of the sensor module 200 may be removed to maintain the optimum transmittance of light transmitted from the light emitting unit 210 to the light receiving unit 220. In addition, by the cleaning action of the cleaning module 300, it is possible to remove other samples included in the central flow path 110 at the time of the previous measurement, that is, oxidant and interference. Therefore, it is possible to accurately measure the residual chlorine concentration by minimizing the error of the measured value of the sensor module 200, and improve the buffering capacity of the buffer solution to improve the measurement reliability.

Preferably, the cleaning module 300 described above may be configured to rotate while reciprocating in the vertical direction. Although not specifically illustrated in the drawings. For example, the piston 310 may be coupled to the inside of the cylinder 330 through a rotating gear and configured to be rotatable during reciprocating movement.

Therefore, the cleaning member 320 may also effectively clean the transmission surface 230 of the sensor module 200 inside the central flow path 110 while rotating along with the piston 310.

The embodiments of the present invention described above are merely illustrative of the technical idea of the present invention, and the protection scope of the present invention should be interpreted by the following claims. In addition, one of ordinary skill in the art to which the present invention pertains will be capable of various modifications and variations without departing from the essential characteristics of the present invention, all technical ideas within the scope equivalent to the present invention of the present invention It should be interpreted as being included in the scope of rights.

Claims

A measurement cell having a center flow path through which a sample to be measured flows, a sample inflow flow path through which the sample flows into the center flow path, and a reagent inflow flow path through which the reagent flows into the center flow path;

A light emitting part installed on one side of the measuring cell and irradiating light toward the center channel, a light receiving part on the other side of the measuring cell facing the genital light emitting part, and receiving a light of the light emitting part; A sensor module including a transmissive surface provided on an inner surface of the center flow channel so as to be transmitted to the light receiving unit, and measuring a absorbance of a sample of the center flow path; And

And a cleaning module installed in the measurement cell so as to reciprocate within the central flow path, the cleaning module cleaning the transmission surface of the sensor module.
The method of claim 1,

The cleaning module,

A piston extending from the top of the measurement cell toward the center flow path and reciprocating by hydraulic or pneumatic pressure; And

And a cleaning member installed at the lower end of the piston, the cleaning member cleaning the transmission surface of the sensor module while being in contact with the inner surface of the central flow path by the reciprocating movement of the piston.
The method of claim 2,

The chlorine residual device having a cleaning function, characterized in that the piston is movable while rotating in the center passage.
The method according to claim 2 or 3,

The cleaning member is a residual chlorine measuring device having a cleaning function, characterized in that the brush, silicone or rubber.