KR101949715B1 - Inspecting installation for screen quality of ion exchanger - Google Patents

Abstract

The present invention is based on the discovery that a particle detecting portion provided in a path where a fluid containing particles of a predetermined size flows and a fluid is used to determine whether or not the fine interval set between the profile wires of the water treatment screen is proper, A screen quality inspection apparatus of an ion exchanger capable of more easily detecting the presence or absence of the presence or absence of the ion exchanger.
The above screen quality inspecting apparatus includes a water storage tank 10 for storing a fluid containing particles, a cradle 12 accommodated in the water storage tank 10, a water treatment screen 30 fixed to the cradle 12, A fluid circulating unit 20 for supplying the fluid into the reservoir 10 and recovering the supplied fluid via the flow connection unit 14 and the screen 30, And a particle detector 40 for detecting the presence or absence of particles in the fluid passing through the screen 30.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen quality inspection apparatus for ion-

The present invention relates to a screen quality inspection apparatus for an ion exchanger, and more particularly, to a screen quality inspection apparatus for a screen quality inspection apparatus using an ion exchanger, And more particularly, to an apparatus for screen quality inspection of an ion exchanger capable of more easily discriminating whether or not the accuracy of a minute interval is appropriate.

A water treatment screen is a type of physical filter used for filtering particulate matter mixed in a fluid such as water. As an example of a water treatment screen, a can-type screen is manufactured by winding a profile wire in a spiral shape with minute intervals on a circular support plate, and then joining the upper plate and the lower plate to the upper and lower ends of the helical profile wire respectively.

In this case, the lower plate is provided with a threaded outer peripheral surface, which facilitates fastening between the screen and the fluid machine. As a result, the fluid flows into the interior of the screen through the minute gap formed between the profile wires, and foreign matter larger than the minute gap between the profile wires is filtered out. Thereafter, the filtered foreign matter is naturally discharged to the outside through the nozzle located on the lower plate.

The can-type screen having such a structure adopts a method in which, at the time of manufacture, each contact portion between the profile wire and the support is fixed by heat fusion and the screen is coupled by spot welding between the upper plate and the lower plate.

As a result, the can-type screen has a merit that a uniform minute interval can be set between the profile wires and a minute interval can be adjusted as desired according to the size of particles to be filtered. Also, the filtration area of the fluid device can be maximized, and it can be used under high-temperature and high-pressure environments, and has a semi-permanent life.

In general, an ion exchanger used for water treatment is filled with an ion exchange resin in the form of particles, and performs the function of purifying ionic impurities contained in the fluid through an ion exchange action. To this end, a plate having a plurality of can-type screens is provided in the ion exchanger, so that the ion exchange resin in the ion exchanger can be prevented from flowing out together with the fluid. If defects occur on the screen, the ion exchange resin may flow out of the ion exchanger and cause various problems in the process. In order to prevent such problems, It is necessary to check the quality of the screen to check whether the screen is defective.

However, in the past, there is no equipment that can inspect objective quality of the screen for water treatment as described above, so that it relies only on visual inspection. Therefore, it is very difficult to grasp the screen manufacturing defects in advance. Actually, in the ion exchanger mentioned above, after the completion of all the construction of the plant, it is inevitably necessary to check the leakage of the ion exchange resin while operating the actual fluid device in the test run phase.

However, if there is a manufacturing defect on the screen in this process, a series of additional work such as recovering the leaked ion exchange resin and disassembling the ion exchanger and replacing the screen is required, and accordingly the cost is increased and the construction period is delayed The problem is triggered.

Japanese Patent No. 6027323 Japanese Patent No. 4698853

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a particle detection unit provided in a path through which a fluid containing particles of a certain size flows, The present invention provides a screen quality inspection apparatus for an ion exchanger capable of more easily detecting the presence or absence of defects in filtration performance of a screen.

That is, the technical problem of the present invention is to adjust the installation height of the water treatment screen to be variable according to the liquid level of the fluid stored in the water tank, and to allow the flow of the fluid including particles of a predetermined size to be continuously circulated via the screen, The present invention provides a screen quality inspection apparatus for an ion exchanger which improves discrimination reliability with respect to filtration performance of a screen using a detection unit and thereby makes it possible to more easily discriminate fabrication defects on a water treatment screen.

According to an aspect of the present invention, there is provided an apparatus for controlling a flow of a fluid, comprising: a reservoir for storing a fluid containing particles; a holder accommodated in the reservoir; a flow connection portion fixed to the holder and equipped with a water- A fluid circulating part for supplying fluid into the reservoir and recovering the supplied fluid via the flow connection part and the screen, and a fluid circulation part for circulating the fluid through the screen And a particle detector for detecting whether the particles remain in the fluid.

The screen quality inspection apparatus of an ion exchanger according to an embodiment of the present invention directly and efficiently verifies the filtration performance of a screen for water treatment through a particle detection section installed in a path where a fluid containing particles of a predetermined size flows and a fluid flows Thereby making it possible to accurately determine the manufacturing defects of the screen.

In addition, since the apparatus for screen quality inspection of an ion exchanger according to the embodiment of the present invention can be implemented by using a series of facilities configured in a relatively simple form, quality inspection related to the production of a screen for water treatment applied to an ion exchanger, Time and cost can be greatly reduced.

The apparatus for inspecting screen quality of an ion exchanger according to an embodiment of the present invention includes a plurality of screens simultaneously mounted on a single facility for quality inspection of a water treatment screen, It is possible to perform the quality inspection related to the filtration performance of a plurality of screens in a short time and increase the reliability of the inspection.

In addition, since the screen quality inspection apparatus of the ion exchanger according to the embodiment of the present invention is capable of verifying the filtration performance of the screen before installing the screen on various fluid equipments provided with the water treatment screen, It is possible to solve the problem of the delay in the construction time due to the failure of the screen.

1 is a schematic view showing a configuration of an apparatus for screen quality inspection of an ion exchanger according to an embodiment of the present invention.
FIG. 2 is an enlarged view of only the configuration of the lifting operation part in the apparatus for inspecting screen quality of an ion exchanger according to the embodiment of the present invention.
3 is a photograph of a water treatment screen applied to an embodiment of the present invention.

The accompanying drawings in the present invention may be exaggerated for clarity, clarity, and descriptive convenience. In addition, since the following terms are defined in consideration of the functions of the present invention, they may vary depending on the intention or custom of the user or the operator, and therefore the definition of these terms should be based on the technical contents throughout this specification will be. On the contrary, the embodiments are merely illustrative of the constituent elements set forth in the claims of the present invention and do not limit the scope of the present invention, and the scope of the rights should be interpreted on the basis of technical ideas throughout the specification of the present invention .

The screen quality inspection apparatus of an ion exchanger according to an embodiment of the present invention is a screen quality inspection apparatus for a screen quality inspection apparatus using a particle detection unit installed in a path through which a fluid containing particles of a predetermined size flows, It is possible to more easily determine in advance whether or not there is an adequacy for the determined filtration performance.

1 and 2, the configuration of the inspection apparatus is schematically shown for the sake of a general description of the present invention. However, the configuration of the water treatment screen or the modification of other components Accordingly, the present invention can be modified in various forms.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, the present invention includes a water storage tank 10 for storing therein a predetermined amount of fluid including particles, a fluid circulating unit 20 for continuously repeating supply and recovery of fluid toward the water storage tank 10, ), A water treatment screen (30) installed in the fluid flow path inside the water storage tank (10), and a particle detection part (40) for determining whether particles remain in the fluid passed through the water treatment screen .

The water storage tank (10) has a cradle (12) arranged substantially horizontally inside. The cradle 12 has a plurality of flow connection portions 14 for individually detachably mounting a plurality of water treatment screens 30 over the entire area. In this case, each of the flow connection portions 14 is configured in the form of a hollow body so as to allow movement of the fluid in a state in which it can communicate with the interior of the water treatment screen 30 independently.

The flow connection portion 14 is configured to have a female thread on the inner circumferential surface of the screen 30 to be engaged with a male thread formed on the outer circumferential surface of the nozzle 30 for detachable engagement with the water treatment screen 30. [ In this case, the detachable coupling between the flow connection portion 14 and the water treatment screen 30 may be applied to various types of assembly structures other than the tooth coupling.

The fluid stored in the reservoir 10 is composed of a solvent having a specific gravity in consideration of the specific gravity of the particles together with particles of a certain size for quality inspection of the filtration performance of the screen 30. That is, the solvent constituting the fluid is preferably selected so as to have an appropriate specific gravity in consideration of the specific gravity of the particles so that the particles dissolve well and the particles do not sink into the fluid. For this purpose, in order to prevent the particles in the fluid from sinking, the water storage tank 10 may be provided with a separate facility such as a stirring facility.

The fluid circulation unit 20 includes a supply pipe 21 disposed in the supply pipe 21 so as to be communicably connected to the water storage tank 10, A plurality of branch conduits 23 disposed to be connected to the flow connection section 14 so as to be individually communicable with each other, a plurality of branch conduits 23 connected to the branch conduits 23 in a communicable manner And a tank 25 provided between the inlet side of the pump 22 and the return pipe 24 for storing a predetermined amount of fluid supplied to the water storage tank 10, .

The supply pipe 21 and the return pipe 24 are respectively provided with a control valve 26 for controlling the flow rate of the fluid flowing through the supply pipe 21 and the return pipe 24. In this case, the control valve 26 may be a manual valve that adjusts the flow cross-sectional area by manual operation of the user, or a control valve whose flow cross-sectional area is automatically adjusted according to application of a control signal, will be.

The flow connection unit 14 further includes a drain line 27 for directly connecting the reservoir 10 and the tank 25 in a communicable manner and the drain line 27 is provided with an open / And an open / close valve 28 for variably controlling the opening / closing valve 28 is provided. In this case, the on-off valve 28 may be a manual valve that adjusts the flow cross-sectional area manually by the user, or a control valve whose flow cross-sectional area is automatically adjusted according to application of a control signal, will be. In addition, a strainer 29 is provided in the pipeline between the pump 22 and the tank 25 for removing foreign substances in the piping.

Referring to FIG. 3, the water treatment screen 30 is manufactured by a profile wire wound roundly at a very small interval, and has a nozzle communicable with the flow connection portion 14. As shown in FIG. In addition, the water treatment screen 30 can be individually tested for filtration performance by being mounted in a one-to-one correspondence with a plurality of flow connection portions 14 with respect to a single cradle 12. [

The particle detector 40 is configured to detect the presence and the extent of particles in the fluid flowing through the screen 30. For example, the particle detector 40 may be an optical particle detector that detects scattering of light from an image secured based on irradiation of a light source and analyzes the scattering of the light, Various kinds of particle detectors can be applied such as a current induction type particle detector which forms an induction magnetic field by applying a power source and a current induction type particle discriminator which discriminates the existence and the degree of particles based on the change of electric power accompanying the particle adherence to the electrode .

The particle detector 40 is configured to detect the presence or the presence of particles in the fluid flowing into each branch pipe 23 independently of the plurality of branch pipes 23.

Particularly, the screen quality inspection apparatus of the ion exchanger according to the present invention includes a transmitter (not shown) installed in the particle detector 40, and a detector And a control unit 50 for controlling the operation of the apparatus. In this case, the transmitting unit transmits the information detected by the particle detector 40 to the outside through a wired or wireless transmission system.

In addition to the function of detecting presence or absence of particles in the fluid, the controller 50 also plays a role of taking charge of a series of controls for the overall operation of the screen quality inspection apparatus of the ion exchanger according to the present invention . For this purpose, the present invention includes a control panel 52 for inputting general operation control of the inspection apparatus by the user, a water level sensor for detecting the level of the fluid in the water tank 10 and outputting the detected level to the controller 50, (54).

In addition, the particle detector 40 individually includes a warning unit 42 that operates based on an operation signal applied from the controller 50. In this case, the warning part 42 may be configured to provide the discrimination due to light emission toward the outside, or may be configured to provide discrimination due to the divergence of audible sound.

The screen quality inspecting apparatus of an ion exchanger according to the present invention adjustably adjusts the vertical position of the mount table 12 with respect to the water storage tank 10 so that the screen 30 is immersed in the fluid stored in the water storage tank 10 And a lifting operation portion (60) for allowing the lifting operation portion (60) to be completely immersed.

The lifting and lowering operation unit 60 includes a sliding bar 61 installed vertically to one side wall of the water storage tank 10 and a sliding bar 61 extending from one side wall of the water storage tank 10 to the sliding bar 61. [ And a guide bar 63 installed vertically with respect to the other inner side wall of the water storage tank 10 and guiding the vertical movement of the cradle 12. The gear unit 62 is provided to provide a rotational driving force for the cradle 12, . In this case, the slide bar 61 is engaged with a female screw 12a provided on the mount table 12, and the guide bar 63 is installed to penetrate the mount table 12 in the vertical direction .

In particular, the sliding bar 61 and the guide bar 63 are provided at a plurality of numbers in the edge portions of the edge of the cradle 12 in consideration of the area and shape of the cradle 12 It is preferable to guide the vertical movement of the cradle 12 in the vertical direction.

Accordingly, the slide bar 61 can guide the movement of the mount table 12 in the vertical direction by the rotational force provided through the gear unit 62, and the guide bar 63 is movable in the vertical direction It is possible to stably guide the movement of the cradle 12 in the vertical direction caused by the rotation of the cradle 61.

2, the gear unit 62 includes a driven gear 62a mounted on the free end of the slide bar 61, a drive gear 62b coupled to the driven gear 62a, And a rotating shaft 62c horizontally installed through one side wall of the water storage tank 10 to mount the driving gear 62b. In this case, a free end of the rotating shaft 62c located outside the water storage tank 10 is provided with a rotating lever 62d for manually applying a rotational driving force to the rotating shaft 62c. In addition, the rotational driving force provided to the rotating shaft 62c may be provided through a rotary actuator including an electric motor (not shown) in addition to the passive external force by the rotating lever 62d.

The slide bar 61 is supported via a first support bracket 64 which is fixedly disposed at both ends of the upper and lower portions in a horizontal direction with respect to one side wall portion of the inside of the water storage tank 10 , And a bearing 65 is separately mounted on the free end of the first support bracket 64 for supporting the sliding bar 61.

Also, the guide bar 63 is also fixedly supported by the second support bracket 66, which is disposed so as to extend in the horizontal direction with respect to the other side wall portion of the inside of the water storage tank 10, .

Hereinafter, the operation of the apparatus for screen quality inspection of the ion exchanger according to the present invention will be described.

First, a screen 30 for inspecting filtration performance is mounted on the holder 12. In this process, the screen (30) is installed separately for the plurality of flow connection parts (14) provided in the holder (12). At this time, the mounting method can be variously applied, including the threaded connection between the nozzle of the screen 30 and the flow connecting portion 14 as described above.

Then, when a signal for starting inspection is input to the operation panel 52, the elevating operation portion 60 is operated in accordance with the fluid remaining amount in the water storage tank 10 detected by the water level sensor 54, So that the screen 30 is completely immersed into the inside of the fluid. In this process, the control unit 50 receives the fluid remaining amount in the water storage tank 10 via the water level sensor 54, and outputs an appropriate operation signal to the elevation operation unit 60. In addition, the lowering of the cradle 12 by the elevating operation portion 60 may be performed by a manual operation.

The operation of the control valve 26 is controlled so as to set the supply path of the fluid from the pump 22 to the inside of the water storage tank 10 via the supply pipe 21 and the return pipe 24 and the tank The pump 22 starts operating in a state in which the setting of the recovery path of the fluid to the pump 22 via the control valve 25 is set.

Next, in the course of the fluid stored in the reservoir 10 flowing through the screen 30, the flow connection portion 14 and the branch conduit 23, the particle detector 40 determines whether or not the particles are present in the fluid, And inputs a detection signal to the control unit 50.

Then, the controller 50 determines whether or not the particles are present in the fluid based on the signal input from the particle detector 40, and if there are particles larger than the set value, the controller 50 outputs an operation signal to the alarm unit 42 So that the filtering performance of the corresponding screen 30 is notified to the outside. In this process, the control unit 50 may be configured to variably output an operation signal to the warning unit 42 to notify the outside of the filtering performance of the screen 30 different from normal and defective.

The control unit 50 controls the opening and closing valve 28 when an abnormal situation such as fluid overflows from the water storage tank 10 or leakage of fluid due to breakage in the pipeline in the process of performing quality inspection on the screen 30 And the internal fluid of the water storage tank 10 is recovered to the tank 25 through the drain pipe 27.

When the series of quality tests are completed, the control unit 50 stops the operation of the pump 22 and then drives the lift operation unit 60 in reverse to raise the holder 12 to its original position. Then, the screen 30 is removed from the flow connecting portion 14 of the holder 12, and then the screen 30 is determined to be normal and the screen 30 is determined to be defective.

The description above is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but are intended to illustrate and not limit the scope of the technical spirit of the present invention. Therefore, the scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of the same should be interpreted as being included in the scope of the present invention.

The present invention is applicable to industrial fields related to the verification of fabrication defects on a water treatment screen applied to an ion exchanger for purifying ionic impurities contained in a fluid filled with a particle type ion exchange resin.

10- Water tank 12- Cradle
14-
20-fluid circulation part 21-supply pipe
22 - Pump 23 - Branch line
24-return line 25-tank
26 - Control valve 27 - With drain pipe
28 - Opening and Closing Valve 29 - Strainer
30-screen
40-particle detecting section 42-warning section
50-Control section 52-Operation panel
54-Level sensor
60-Lift operation part 61-Slide bar
62-Gear unit 63-Guide bar
64-first support bracket 65-bearing
66- Second support bracket

Claims (11)

A reservoir for storing a fluid containing particles;
A cradle accommodated in the water tank;
A flow connection fixed to the cradle and mounting a water treatment screen;
A fluid circulating unit for supplying a fluid into the reservoir and recovering the supplied fluid via the flow connection unit and the screen; And
And a particle detector for detecting the presence or absence of particles in the fluid passing through the screen,
Wherein the fluid circulation unit comprises:
A supply pipe connected to the water storage tank;
A pump installed in the supply pipe;
A branch conduit separately connected to the flow connection;
A return pipe connected in parallel with the branch pipe; And
And a tank disposed between the pump and the return pipe for storing the fluid,
Wherein the supply pipe and the return pipe are provided with a control valve for controlling the flow rate.
The method according to claim 1,
Wherein the flow connecting portion is mounted in a large number of numbers with respect to the cradle, and is configured to be detachably coupled in a state in which the flow connecting portion can communicate with a nozzle of the screen.
The method according to claim 1,
Further comprising a lifting operation unit for adjusting the fixing position of the cradle with respect to the water storage tank in the vertical direction.
The method of claim 3,
The lifting /
A slider bar installed vertically with respect to one side wall of the water reservoir;
A gear unit for providing a rotational driving force to the slide bar; And
And a guide bar installed vertically with respect to the other side wall part of the water reservoir to guide movement of the cradle,
Wherein the slide bar is meshed with a female screw provided on the mount table, and the guide bar is installed through the mount table.
The method of claim 4,
The gear unit includes:
A driven gear mounted on the slide bar;
A driving gear meshed with the driven gear; And
And a rotating shaft mounted on the driving gear and passing through the water storage tank.
The method of claim 4,
Wherein the slide bar is rotatably supported via a bearing to one side wall of the water reservoir to guide the movement of the mount vertically and the guide bar is fixed to the other side wall of the water reservoir, Wherein the guide member guides the movement of the ion-exchanger in the up-and-down direction.
delete The method according to claim 1,
Further comprising a drain pipe directly connecting the reservoir and the tank, wherein the drain pipe is provided with an on-off valve for controlling the opening and closing of the pipe.
The method according to claim 1,
Wherein the particle detector is installed in the branch pipe.
The method according to claim 1,
Further comprising a transmitter installed in the particle detector, and a controller receiving a signal output from the transmitter and determining whether the particle is detected.
The method of claim 10,
Further comprising a warning unit provided in the particle detection unit, wherein the control unit is configured to output an operation signal to the warning unit based on a signal provided from the transmission unit.

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