KR100768080B1 - A filter apparatus having a screen brush therein - Google Patents

Abstract

A filter apparatus having a screen brush therein, which performs cleaning, repairing and maintaining operations easily by attaching an impurity removing brush to a screen, allows influent to be filtered smoothly and promptly while forming a vortex flow by installing the screen and the brush aslant within the filter apparatus, and improves filtration efficiency prominently by arranging an inflow port and a discharge port in a row, is provided. A filter apparatus(1) having a screen brush therein comprises: a casing(10) in which a hollow space is formed, which has an inflow port(5) and a discharge port(7) formed on an upper part thereof such that the inflow port and the discharge port are respectively connected to a fluid supply pipe(100), and which has a drain exit(12) formed on a lower part thereof; a strainer(15) which is mounted on an inner part of the casing to filter impurities from a fluid flown in from the inflow port and discharge a filtered fluid through the discharge port; a brush(20) disposed within the strainer and rotated by a motor(45) to clean the strainer by scraping impurities of the strainer; and a control part(80) that is electrically connected to the motor to turn on or off the operation of the motor, and is electrically connected to automatic valves(70a-70d) to open or close the automatic valves, thereby automatically controlling the cleaning operation.

Description

A filter apparatus having a screen brush therein}

1 is a block diagram generally showing a filter device having a screen brush according to the present invention;

2 is an exploded perspective view showing the filter device with the screen brush according to the present invention as a whole;

Figure 3 is an exploded perspective view showing a coupling structure of the support shaft and the brush rotating shaft provided in the filter device having a screen brush according to the present invention;

4 is an operation explanatory diagram of a filter device having a screen brush according to the present invention;

FIG. 5 is a flowchart illustrating a stepwise cleaning operation of the strainer by pressure detection of the front and rear ends of the strainer in the filter device having the screen brush according to the present invention.

<Explanation of symbols for main parts of the drawings>

1 ..... Filter apparatus with screen brush according to the invention

5 .... Inlet 7 .... Outlet

10 .... casing 10a, 10b .... upper and lower body

12 ... drain drain 15 ... strainer

15a ... stainless mens 15b .... frame

20 .... Brush 22 .... Spindle

30 .... support plate 32 .... spiral hole

34 .... through hole 36 .... pin

45 ... motor 50 ... reducer

52a ... warm gear 52b ... warm

60 ... pipe fitting 70 .... bypass piping

70a, 70b, 70c, 70d ... Automatic valve 80 .... control part

82a .... Selection switch 84 .... Timer

86 .... start button 90a, 90b ... pressure detection port

92 .... Pressure sensor 100 ... Fluid supply piping

110 ... Start step 120 ... Pressure detection step of inlet and outlet

130 ... differential pressure detection step 140 ... differential pressure detection comparison step

150 ... Drain outlet opening step 160 ... Cleaning end determination step

170 ... End stage P1, P2 ... Pressure

△ P ... differential pressure S .... impurity

The present invention relates to a filter device for filtering impurities from a fluid, and more particularly, a brush for removing impurities attached to the screen during the filtration of the fluid to facilitate cleaning and maintenance, and the screen and the brush inside Since the water flowing inwardly is inclined to form a vortex and can be smoothly filtered at high speed, the filter device is provided with a screen brush that has an excellent filtering effect by arranging the inlet and the outlet in a row.

Generally, Filtration is one of the water treatment methods for supplying water suitable for the purpose of use, and it is a method of removing impure solids in a liquid. Impurity solids are largely divided into suspended and dissolved states. Suspended solids can be removed by filtration, and dissolved solids can be removed by precipitation or precipitation by ion exchange apparatus or chemicals.

It is important to select the appropriate type according to the type of fluid and the size, shape and concentration of the solid particles, and also according to the process requirements, such as the minimum allowable particle size, filtration efficiency, continuous operation, etc. The optimum driving performance and economic efficiency can be secured only by selecting the type of filter media, filtration area and back-wash method.

On the other hand, a pipe strainer device is known as a device which is attached to a pipe and filters impurity solids from a fluid flowing inside the pipe.

The conventional pipe strainer device includes a strainer having a cylindrical perforated network in a casing formed between an inlet and an outlet of a pipe element, and fastens a hexagon bolt to an end of the casing to allow fluid flowing in the pipe to the outside. It is to be filtered by the strainer without leaking.

Such a conventional strainer device has a lot of impurities in the strainer over time, in this case, it is cumbersome because the hexagon bolts must be dismantled and reassembled for cleaning the strainer.

Therefore, in order to solve this problem, a cleaning drain valve is coupled to the end of the drain portion in which the strainer is built, and the cleaning work is performed by opening the valve so that impurities accumulated in the strainer can be cleaned as the discharge pressure of the fluid. A strainer device has been developed to make the operation very simple.

Since the strainer device can clean the impurities accumulated in the strainer relatively easily, the pipe line can be maintained normally by eliminating the vacuum cleaner of the user, and the leakage of fluid during the operation for cleaning can be prevented. This prevents soiling of the floor and makes cleaning easier.

However, the conventional strainer device as described above has a problem in that it must be disassembled and reassembled in order to remove impurities stuck in the strainer with a brush or the like instead of the discharge pressure of the fluid. That is, since the brush does not touch the strainer in the casing, it still had a problem of disassembling and reassembling to clean it.

In addition, in such a conventional structure, when disassembling and reassembling the strainer from the casing, the fluid supply is cut off or supplied without filtration through the bypass pipe, or the fluid is supplied through another separate strainer line. There are many problems in the supply of the filtered fluid, such as bypass supply.

The present invention is to solve the conventional problems as described above, the purpose is to clean the strainer with a brush at all times smoothly without disassembling and reassembling the casing, so that the cleaning and maintenance work is easy even during the supply of fluid It is, therefore, to provide a filter device having a screen brush with an excellent filtration efficiency.

In another aspect, the present invention is to supply the fluid through the strainer and at the same time the brush cleaning operation of the strainer can be made, so that the filtration supply of the fluid is not interrupted, so that a large amount of water per unit time even at a small capacity The present invention provides a filter device having a screen brush.

In another aspect, the present invention can detect the differential pressure in the pipe or set the time to a timer to automatically clean the strainer at a predetermined time interval to perform an unattended automated cleaning process, accordingly very efficient work It is to provide a filter device having an excellent screen brush.

In order to achieve the above object, the present invention provides a hollow space therein, the upper side is formed with an inlet and outlet are respectively connected to the fluid supply pipe, the lower side casing is formed with a drain outlet;
A strainer mounted inside the casing to filter impurities from the fluid flowing from the inlet, and to allow the filtered fluid to be discharged through the outlet;
A brush disposed inside the strainer and rotated by a motor to scrape and clean the impurities of the strainer; And
And a control unit electrically connected to turn on / off the operation of the motor and electrically controlled to open and close automatic valves, the control unit configured to automatically control the cleaning operation. In the strainer device for filtering impurities to form a brush cleaning of the strainer,
The casing is mounted in an inclined state with respect to the fluid supply pipe, and the inlet and the outlet are coaxially mounted to the pipe, and the strainer is rotatably supporting the front end of the rotating shaft of the brush at the front end toward the inlet. Provided is a filter device having a screen brush, characterized in that the vortex is formed in the strainer of the casing by mounting a support plate for imparting rotational force to the fluid passing through the spiral hole of the casing.

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In another aspect, the present invention preferably provides a filter device having a screen brush, characterized in that the brush is connected to the shaft of the motor through a reduction gear having a worm gear and a worm wheel.

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In another aspect, the present invention preferably provides a filter device with a screen brush, characterized in that the control unit is provided with a selection switch for selecting any one of the operation off (off), differential pressure operation, timer operation, manual operation. .

And the present invention preferably the control unit comprises a pressure detection port at each of the inlet and outlet, the pressure detection port is connected to a pressure sensor for detecting the pressure, respectively, the pressure sensor detects the differential pressure and transmits to the control unit And the control unit starts the operation of the motor when the detected differential pressure is greater than the set differential pressure, and automatically controls the cleaning operation by opening the automatic valve mounted at the drain outlet. to provide.

In another aspect, the present invention preferably the control unit has a built-in timer to start the operation of the motor at a set time, the screen brush, characterized in that to automatically control the cleaning operation by opening the automatic valve mounted to the drain outlet Provided is a filter device provided.

And the present invention preferably provides a filter device having a screen brush, characterized in that the casing is mounted side by side with the bypass pipe on the pipe, the bypass pipe is provided with an automatic valve.

In another aspect, the present invention preferably provides a filter device having a screen brush, characterized in that the casing is equipped with automatic valves respectively in the front and rear piping of the inlet and outlet.

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

As shown in FIG. 1, the filter device 1 having the screen brush according to the present invention is mounted on the fluid supply pipe 100 and filters and removes impurities S from the fluid flowing therein.

The filter device 1 according to the present invention forms a hollow space therein, and an inlet 5 and an outlet 7 are formed at the upper side thereof, respectively, and are connected to the fluid supply pipe 100, and at the lower side, a drain outlet. 12 includes a casing 10 formed therein.

As shown in FIG. 2, the casing 10 has upper and lower two divided bodies 10a and 10b, which are upper and lower bodies 10a and 10b integrally with each other through a plurality of bolts 10c. The strainer 15 is mounted in its inner space.

The casing 10 has an inlet 5 and an outlet 7 formed in its upper body 10a, and these inlets 5 and outlet 7 are flanges 5a in the fluid supply pipe 100. 7a and bolts 5b and 7b are coupled, and the lower body 10b is formed with a drain outlet 12 described later.

And the present invention is mounted to the inside of the casing 10 to filter the impurities (S) from the fluid flowing from the inlet (5), the strainer 15 to discharge the filtered fluid through the outlet (7) It is provided.

The strainer 15 is made of a stainless steel net 15a having high durability and corrosion resistance to particles of impurities (S), and includes a frame 15b that firmly supports these nets.

The strainer 15 has a brush 20 described later, rotatably supporting the front end of the rotating shaft 22 of the brush 20 on its front face, i.e., in front of the inlet 5. It is a structure equipped with the support plate 30 which provides rotational force to the fluid to make. As shown in FIG. 3, the support plate 30 has a plurality of spiral holes 32 formed therethrough, and when the fluid flows through the support plate 30, the support plate 30 may flow into the vortex by applying rotational force to the fluid.

In addition, in the present invention, the casing 10 is mounted in an inclined state with respect to the fluid supply pipe 100, and the inlet 5 and the outlet 7 are coaxial with respect to the fluid supply pipe 100. Since the fluid is introduced into the strainer 15 of the casing 10, the vortices are formed, and the rapid flow is made, so that the strainer 15 can be quickly filtered.

In addition, the support plate 30 has a through hole 34 formed in the center thereof, and the through hole 34 is inserted into the rotating shaft 22 of the brush 20 so as to be rotatable and fixed with a pin 36. As a result, the front end of the brush 20 is rotatably supported.

In the filter device 1 according to the present invention, the brush 20 disposed in the strainer 15 is rotated by the motor 45 to scrape off the impurities S of the strainer 15. As shown in FIG. 2, the brush 20 is inserted into the strainer 15, and the front end of the rotating shaft 22 is rotatably inserted into the central through hole 34 of the support plate 30. The rear end is mounted to the shaft 45a of the drive motor 45 through the reduction gear 50.

In addition, the brush 20 is the hair portion 20a is in contact with the inner side of the strainer 15, when the brush 20 is rotated inside the strainer 15, the hair portion 20a is the strainer 15 By scraping the inner surface of the impurities (S) will be removed.

On the other hand, the reducer 50 is a structure having a worm gear 52a and a worm wheel 52b, the shaft 45a of the motor 45 is connected to the worm gear 52a, the worm gear 52a The worm wheel 52b engaged in the structure is connected to the rotating shaft 22 of the brush 20. Therefore, the rotation operation of the motor 45 may be transmitted to the rotation shaft 22 of the brush 20 through a predetermined deceleration ratio. However, reverse rotation from the brush 20 to the drive motor 45 is not made due to the structure of the worm gear 52a and the worm wheel 52b.

Therefore, the brush 20 may be stably rotated in a desired direction through the operation of the drive motor 45, and scrape off impurities S attached to the inner surface of the strainer 15.

As such, the drive motor 45 and the speed reducer 50 for rotating the brush 20 are fixedly connected to the rear end of the casing 10 through appropriate pipe connectors 60 and are integrally connected.

In this way, the casing 10 equipped with the drive motor 45 and the reduction gear 50 is mounted in parallel with the bypass pipe 70 on the fluid supply pipe 100, and the bypass pipe 70 is The automatic valve 70a is provided in the middle. In addition, the casing 10 is equipped with automatic valves 70b and 70c, respectively, in the front and rear fluid supply pipes 100 of the inlet 5 and the outlet 7, which are described later. Electrically connected to the operation can be made by a predetermined operating sequence.

The control unit 80 is electrically connected to turn on / off the operation of the motor 45, and electrically connected to open and close the automatic valves 70a, 70b, and 70c to automatically control the cleaning operation. will be.

The control unit 80 is provided with a selector switch 82a for selecting any one of the operation off, the differential pressure operation, the timer 84 operation, and the manual operation, for example. It can be chosen to achieve the operation of the present invention. The differential pressure operation in the above is to set the cleaning operation of the strainer 15 using the brush 20 by using the differential pressure by the pressure detection on the inlet 5 and outlet 7 side, the timer 84 operation is the user Starts the cleaning at a predetermined time by setting the operation time of the timer 84, and manual operation performs the cleaning operation using the brush 20 as soon as the user presses the start button 86 at any time. Done.

When the control unit 80 starts the cleaning of the strainer 15 using the differential pressure operation, the control unit 80 includes pressure detection ports 90a and 90b at the inlet 5 and the outlet 7, respectively. The pressure detection ports 90a and 90b are each connected to a pressure sensor 92 that detects pressures, and the pressure sensor 92 is configured to detect and transmit the differential pressure to the control unit 80. Accordingly, the controller 80 starts operation of the motor 45 when the detected differential pressure ΔP is greater than a preset differential pressure using a built-in microprocessor (not shown), and the drain outlet 12 By opening the automatic valve (70d) attached to the automatic cleaning of the strainer 15 is to control.

In addition, when the control unit 80 starts the cleaning operation of the strainer 15 by using the timer 84 operation, the user adjusts the set time using the timer 84 built in the control unit 80. The operation of the motor 45 is started, and the automatic valve 70d mounted at the drain outlet 12 is opened to automatically control the cleaning operation.

Reference numeral 94 is a step of the casing 10 to which the strainer 15 is mounted, and 96 is a bracket for supporting the motor 45.

In the filter device 1 having the screen brush according to the present invention configured as described above, the inlet port 5 and the outlet port 7 mounted on the casing 10 have flanges 5a and 7a on the fluid supply pipe 100. It is mounted in combination and mounted side by side parallel to the bypass piping 70 and arranged as shown in FIG. 1.

In this state, the automatic valve 70a of the bypass pipe 70 is closed, and the automatic valves 70b and 70c on the inlet 5 and outlet 7 sides are opened, and the drain outlet 12 is opened. In the closed state, the automatic valve (70d) is provided in the fluid flow through the inlet (5), usually water.

Water introduced in this way is introduced while forming a vortex into the inner space of the strainer 15, as shown in Figure 4, while the impurity (S) is caught on the inner surface of the strainer 15 through the outlet 7 Exit

When impurities S are accumulated in the strainer 15 through this operation, they are collected at the drain outlet 12 connected to the lower side of the strainer 15, because the casing 10 and the strainer 15 are collected. ) Is mounted on the fluid supply pipe 100 in an inclined state, and the impurity (S) condensed more heavily than water is lowered to the lower side of the casing 10 and collected at the drain outlet 12 side.

In addition, the deposition of such impurities (S) causes a pressure change at the inlet 5 side and the outlet 7 side centering on the strainer 15, and this pressure change is performed in real time in the pressure detection port 90a ( 90b) and the pressure detection sensor 92 are transmitted to the control unit 80, and the control unit 80 detects the differential pressure ΔP based on the detected pressure, and the detected differential pressure ΔP is pre-set. When greater than the differential pressure set at, the electric motor is provided to the drive motor 45 to rotate the brush 20 and open the automatic valve on the drain outlet 12 side.

This sequence of operations is shown step by step in FIG. 5.

If water begins to be filtered through the strainer 15 after the start step 110, the pressure detection port 90a on the inlet 5 side and the outlet 7 side centered on the strainer 15 in step 120. 90b and the pressure detection sensor 92 detect pressures P1 and P2 and transmit them to the control unit 80, respectively.

In the next step 130, the controller 80 detects the differential pressure ΔP based on the detected pressures P1 and P2. In addition, in the next step 140, the control unit 80 compares and determines whether the differential pressure? P detected in the step 130 is greater than a preset differential pressure through a built-in microprocessor and a control program.

If the result of the determination is not large, the flow returns to step 120 if "no", and again detects the pressure P1 and P2, and if the determination result is "yes," proceed to the next step 150. Thereby providing an electrical signal to the drive motor 45 to rotate the brush 20 and open the automatic valve 70d on the drain outlet 12 side.

Therefore, the operation of the drive motor 45 makes the rotation of the brush 20 through the reducer 50, and the brush 20 scrapes and cleans the inner surface of the strainer 15 to separate impurities S. In addition, such an impurity (S) is discharged through the drain outlet 12 side through the automatic valve 70d of the drain outlet 12 through which the strainer 15 is cleaned.

When the cleaning of the impurities (S) is made, the pressure at the inlet 5 and the outlet 7 is restored again, and the pressure detection sensor 92 detects this to stop the operation of the drive motor 45. The automatic valve 70d on the drain outlet 12 side is closed.

In the next step 160, it is determined whether the worker has set whether or not the cleaning of the strainer 15 has been finished. If "No", the process returns to step 120 and the pressure detection is performed again, and the determination result is " If yes, the process proceeds to the next step 170 to end the cleaning process of the strainer 15.

In the cleaning process of the strainer 15, the operation of the driving motor 45 and the opening and closing of the automatic valve 70d of the drain outlet 12 are caused by the accumulation of impurities (S) in the strainer 15. Since the differential pressure ΔP is generated at the outlet 7 and the detected differential pressure ΔP exceeds the set differential pressure, the strainer 15 can be cleaned by unmanned automation.

On the other hand, when the worker wants to use the built-in timer 84, when the operation start of the driving motor 45 and the opening time of the automatic valve 70d on the drain outlet 12 side are set in the timer 84, the corresponding time is set. In accordance with this, the operation of the drive motor 45 is automatically started, and the automatic valve 70d on the drain outlet 12 side is opened to clean the strainer 15 by unmanned automation. After the set time has elapsed, the operation of the drive motor 45 is stopped, and the automatic valve 70d on the drain outlet 12 side is closed.

In addition, when the operator manually selects the switch in the control unit 80, the mounted start button 86 is pressed to operate the drive motor 45, and the brush 20 is immediately cleaned and the drain outlet ( The cleaning of the strainer 15 can be achieved by opening the automatic valve 70d on the 12) side. In addition, after the desired work time, the operation of the drive motor 45 is stopped by releasing the pressed state of the start button 86, and the automatic valve 70d on the drain outlet 12 side can be closed.

As such, the present invention can achieve cleaning of the strainer 15 through various operating methods, which is very effective. Further, the cleaning operation of the strainer 15 can be performed while fluid filtration is performed without stopping the water supply. The reason is that since the casing 10 and the strainer 15 are mounted in an inclined state, most of the impurities S are concentrated on the drain outlet 12 side, and thus, the automatic valve on the drain outlet 12 side ( When the 70d) is opened, the impurities S can be easily discharged. In addition, it is possible to minimize the amount of water lost through the drain outlet 12 in this process.

On the other hand, the bypass pipe 70 may be useful when the strainer 15 is to be replaced or repaired. That is, when water is supplied through the strainer 15, the water supply is achieved while filtration is performed while the valve 70a on the bypass pipe 70 is blocked, and when the strainer 15 is to be replaced or repaired, Close the automatic valves 70b and 70c on the inlet 5 and outlet 7 sides, open the automatic valve 70d on the bypass pipe 70 side to bypass the water, disassemble the casing 10 and disassemble the strainer. (15) may be replaced or repaired.

Although the present invention has been described in detail with reference to the accompanying drawings, the present invention is not limited to such a specific structure. Those skilled in the art may variously modify or change the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. For example, in the above, the strainer is a structure using a frame and a stainless steel network, but the present invention is not limited to such a structure, but may be a strainer having a porous plate structure or a plurality of layers. In addition, although the rotational force of the driving motor is transmitted to the brush through the reducer equipped with the worm gear and the worm wheel, the present invention may be replaced with another reducer having an equivalent function. Nevertheless, it is intended that it be clear in advance that all such simple structural changes or modifications of equivalent functionality fall within the scope of the present invention.

As described above, according to the present invention, it is possible to clean the strainer with a brush at all times without disassembling and reassembling the casing, so that the cleaning and maintenance work is easy even during the supply of the fluid, and thus the filtration efficiency is excellently improved. Has

In addition, according to the present invention, by supplying the fluid through the strainer and at the same time, the brush cleaning operation of the strainer can be performed so that the filtration supply of the fluid is not interrupted, so that a large amount of water can be filtered per unit time with a small capacity. Has an excellent effect.

In addition, according to the present invention can detect the differential pressure in the pipe or set the time as a timer to automatically clean the strainer at a predetermined time interval to perform an unattended automated cleaning process, thereby greatly improving the work efficiency That has a very excellent effect.

Claims (9)

A casing having a hollow space therein, an upper inlet and an outlet being formed to be connected to the fluid supply pipe, and a lower outlet having a drain outlet; A strainer mounted inside the casing to filter impurities from the fluid flowing from the inlet, and to allow the filtered fluid to be discharged through the outlet; A brush disposed inside the strainer and rotated by a motor to scrape and clean the impurities of the strainer; And And a control unit electrically connected to turn on / off the operation of the motor and electrically controlled to open and close automatic valves, the control unit configured to automatically control the cleaning operation. In the strainer device for filtering impurities to form a brush cleaning of the strainer, The casing is mounted in an inclined state with respect to the fluid supply pipe, and the inlet and the outlet are coaxially mounted to the pipe, and the strainer is rotatably supporting the front end of the rotating shaft of the brush at the front end toward the inlet. And a support plate for imparting rotational force to the fluid passing through the helical hole of the filter, wherein a vortex is formed in the strainer of the casing to allow rapid filtration of the fluid. delete 2. The filter device according to claim 1, wherein the brush is connected to a shaft of the motor through a reducer having a worm gear and a worm wheel. delete The filter device as claimed in claim 1, wherein the control unit includes a selector switch for selecting one of an off operation, a differential pressure operation, a timer operation, and a manual operation. 6. The control unit according to claim 5, wherein the control unit includes a pressure detecting port at each of the inlet and the outlet, and the pressure detecting ports are respectively connected to a pressure sensor that detects pressures, and the pressure sensor detects the differential pressure and transmits it to the control unit. And the control unit starts operation of the motor when the detected differential pressure is greater than the set differential pressure, and automatically controls the cleaning operation by opening the automatic valve mounted at the drain outlet. According to claim 5, wherein the control unit has a built-in timer to start the operation of the motor at a set time, and the screen brush, characterized in that to automatically control the cleaning operation by opening the automatic valve mounted to the drain outlet One filter device. The filter device according to claim 1, wherein the casing is mounted in parallel with the bypass pipe on the pipe, and the bypass pipe includes an automatic valve. The filter device as claimed in claim 1, wherein the casing is provided with automatic valves respectively installed at the front and rear pipes of the inlet and the outlet.

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