KR20130016865A - Back-washable water management filter system and backwash method using the same - Google Patents

Abstract

PURPOSE: A water treatment filtering system capable of a back wash and a back wash method thereof are provided to save the cost and time for a back wash because a separate equipment and fluid for a back wash are not necessary by performing a back wash using a part of the air and filtered water. CONSTITUTION: A water treatment filter system(10) capable of a back wash includes a filtering unit(100), a supply pipe(210), an exhaust pipe(220), a back wash unit, a first valve(300), and a second valve(400). A supply pipe supplies contaminated water to the filtering unit. An exhaust pipe discharges water filtered by the filtering unit. A back wash unit supplies at least once between the air and water as fluid for a back wash to the filtering direction of the contaminated water and a reverse direction, and removes residue accumulated inside the filtering unit. A first valve connects the supply pipe with the filtering unit, and blocks the connection of the supply pipe and the filtering unit when the back wash unit operates. A second valve connects the exhaust pipe with the filtering unit, and blocks the connection of the exhaust pipe and the filtering unit when the back wash unit operates. [Reference numerals] (610) Air supplying unit; (700) Control unit; (AA) Contaminated water; (BB) Residue; (CC) Filtered water; (DD) Water; (EE) Air; (FF) In the process of filtering; (GG) In the process of first backwashing; (HH) In the process of second backwashing

Description

Back-washable water management filter system and backwash method using the same}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water treatment filter system and backwashing method having a filtration function of residues such as bacteria, debris of plants and animals, and a backwashing function of a filter.

Wastewater generated in domestic and foreign industrial sites or ships contains not only water but also various floats, so the treatment of such contaminated water is problematic.

In particular, the water used for ships is isolated from the land, so the problem of purifying contaminated water is important, and various filters for filtration of contaminated water have been developed. In addition, to protect the marine environment, the International Maritime Organization (IMO) recommends the installation of ballast water treatment systems, which require a self-cleaning filter system.

The filter must be cleaned periodically to increase its service life and to increase the filtration efficiency of contaminated water. Therefore, a technique for removing deposits accumulated in the filter is required.

One embodiment of the present invention relates to an automated water treatment filter system having a backwash function of a filter for filtering debris contained in a fluid and a backwashing method using the same.

According to an aspect of the invention, the filter unit for filtering the contaminated water; A supply pipe fluidly connected to the filter part and supplying the contaminated water to the filter part; A discharge pipe fluidly connected to the filter part and discharging the filtered water filtered by the filter part; A backwashing part for supplying a backwashing fluid, which is at least one of air and water, in a direction opposite to the filtration direction of the contaminated water to remove debris accumulated in the filter part; A first valve connecting the supply pipe and the filter part to block connection of the supply pipe and the filter part when the backwash part is operated; And a second valve connecting the discharge pipe and the filter part to block the connection of the discharge pipe and the filter part during the operation of the backwashing part.

According to one aspect of the invention, the backwashing unit, fluidly connected to the filter unit, the first backwashing tube for supplying the backwashing fluid for backwashing to the filter unit; And a second backwash tube fluidly connected to the filter unit and discharging the fluid passing through the filter unit.

According to another feature of the present invention, the first valve and the second valve may be synchronized to drive together during the filtration operation of the filter unit and the backwash operation of the filter unit.

According to another feature of the present invention, the first valve includes opening and closing holes connected to the supply pipe, the filter unit, and the second back washing tube and the first opening and closing plate to selectively open and close the opening and closing holes, The second valve includes opening and closing holes connected to the discharge pipe, the filter part, and the first backwashing pipe, and a second opening and closing plate to selectively open and close the opening and closing holes, wherein the first opening and closing plate and the second opening and closing plate are provided. The opening and closing plate is provided on the coaxial line to selectively open and close the opening and closing hole by moving or rotating in the vertical direction, it can be driven together by the same drive unit.

According to another feature of the present invention, the first backwashing pipe is connected to an air inlet and connected to a pump for supplying a portion of the filtered water flowing in the discharge pipe to the first backwashing pipe, wherein the first backwashing pipe is Air and water, which are backwashing fluid, may be sequentially supplied toward the filter unit.

According to another feature of the present invention, the filtrate storage supply for storing at least a portion of the filtrate, and fluidly connected to the first backwashing tube to supply at least a portion of the stored filtrate to the backwashing fluid Can be.

According to another feature of the invention, the filter unit may be provided with a filter element for filtering the contaminated water and an ultrasonic cleaning unit disposed around the filter element.

According to another feature of the invention, the filter portion may be connected in parallel with the supply pipe, the discharge pipe, and the backwashing portion as a plurality.

According to another feature of the invention, the filter unit, a housing including a housing body and a housing cover which is provided on one side of the housing body to seal the inside, including a confirmation window that looks inside the transparent material; And a filter element provided inside the housing and including an uneven surface.

According to another aspect of the present invention, as a backwashing method of a water treatment filter system having a filter unit for filtering the contaminated water, a supply pipe for supplying the contaminated water to the filter unit and a discharge pipe for discharging the filtered water passing through the filter unit, Driving a second valve connected to the filter unit to block the connection of the discharge pipe and the filter unit; Driving a first valve connected to the filter unit to cut off the connection between the supply pipe and the filter unit; Supplying at least one fluid of air and water in a direction opposite to a filtration direction of the contaminated water through a first backwashing tube fluidly connected to the filter unit; And discharging the fluid passing through the filter unit through a second backwash tube fluidly connected to the filter unit.

According to one feature of the invention, the step of driving the second valve to cut off the connection of the discharge pipe and the filter unit, the step of driving the first valve to cut off the connection of the supply pipe and the filter unit is performed at the same time And blocking the connection of the discharge pipe and the filter part by driving the second valve includes fluidly connecting the first backwashing pipe and the filter part, and driving the first valve to supply the supply pipe and the Blocking the connection of the filter unit may include fluidly connecting the second backwashing tube and the filter unit.

According to another feature of the present invention, driving the second valve to cut off the connection of the discharge pipe and the filter unit, and driving the first valve to cut off the connection of the supply pipe and the filter unit at the same time The method may include: a first opening and closing plate for selectively opening and closing the opening and closing holes of the first valve using the same driving unit, and a second opening and closing provided on the coaxial line with the first opening and closing plate and selectively opening and closing the opening and closing holes of the valve. Driving the plates simultaneously.

According to another feature of the invention, the step of supplying the fluid, the first backwashing step of supplying air to the filter unit through the first backwashing pipe; Supplying a portion of the filtered water flowing through the discharge pipe to the first backwashing pipe by using a pump; And a second backwashing step of supplying a portion of the filtrate to the filter unit through the first backwashing tube.

According to another feature of the invention, before the step of supplying the fluid, by driving the ultrasonic cleaning unit provided in the filter unit may further comprise the step of separating the residue deposited on the filter unit.

According to one embodiment of the present invention as described above, by performing the first and second backwash can effectively remove the residue deposited on the filter unit.

In addition, backwashing is performed using a portion of air or filtrate, so that no separate equipment and backwashing fluid are required, and thus the cost and time for backwashing can be saved.

And, the ultrasonic washing unit can be separated to some extent by the residue deposited on the filter unit can further improve the backwashing efficiency.

1 schematically shows a backwashable water treatment filter system according to one embodiment of the invention.
2A shows a filter portion and first and second valves in a backwashable water treatment filter system according to one embodiment of the invention.
FIG. 2B is a perspective view illustrating a filter element provided in the filter unit of FIG. 2A. FIG.
2C and 2D are perspective views showing yet another embodiment of the filter element.
3 is a state diagram showing an extract of the filter unit in a backwashable water treatment filter system according to an embodiment of the present invention, which shows a time when the contaminated water is filtered.
4 is a state diagram showing an extract of the filter unit in the backwashable water treatment filter system according to the exemplary embodiment of the present invention, which shows the backwashing operation of the filter unit.
5 schematically illustrates the use of air as a backwashable water treatment filter system according to another embodiment of the invention.
FIG. 6 is a backwashable water treatment filter system according to another embodiment of the present invention, yet another embodiment of FIG. 5.
7 is a schematic back view of the case of using filtered water as a backwashable water treatment filter system according to another embodiment of the present invention.
FIG. 8 is a backwashable water treatment filter system according to another embodiment of the present invention, yet another embodiment of FIG. 7.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is noted that the terms "comprises" and / or "comprising" used in the specification are intended to be inclusive in a manner similar to the components, steps, operations, and / Or additions. The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by terms. Terms are used only for the purpose of distinguishing one component from another.

≪ Embodiment 1 >

1 is a schematic view showing a backwashable water treatment filter system (hereinafter, referred to as a water treatment filter system) according to an embodiment of the present invention, showing a state in which a plurality of filter units are connected in parallel, and FIG. 2A illustrates an embodiment of the present invention. In the backwashable water treatment filter system according to the present invention, the filter part and the first and second valves are shown, and FIG. 2B is a perspective view showing a filter element provided in the filter part of FIG. 2A, and FIGS. 2C and 2D show another embodiment of the filter element. It is a perspective view shown.

Referring to FIG. 1, the water treatment filter system 10 may include a filter part 100 for filtering contaminated water, a supply pipe 210 and a discharge pipe 220 fluidly connected to the filter part 100, and a filter part 100. A back detail part for washing the filter part 100 by supplying a fluid in a direction opposite to the filtration direction, and first and second valves 300 and 400, and the back detail part comprises a first reverse fluidly connected to the filter part 100. It may include a customs 510 and a second back customs 520, an air supply 610 and a pump 620.

The filter unit 100 filters the contaminated water, and is used to remove contaminated suspended solids such as bacteria, animals, and the like contained in living water or seawater generated from a vessel. First and second valves 300 and 400 are provided at both ends of the filter unit 100, and the supply pipe 210 and the discharge pipe 220 are connected to the filter unit 100 through the first and second valves 300 and 400. Fluidly connected to the

2A, the filter unit 100 may include a housing 110, a confirmation window 115, a filter element 120, and an ultrasonic cleaning unit 130.

The housing 110 accommodates the filter element 120 therein, and may have a confirmation window 115 at one side so that an operator can easily check the state of the filter element 120. The confirmation window 115 is made of a transparent material including a material such as glass or resin so that the operator can visually check the state of the filter element 120.

The housing 110 includes a housing body 111 open with one side open, and a housing cover 112 covering the housing body 111, and the housing body 111 and the housing cover 112 are fixed members. The interior of the housing 110 is sealed by 113. The other side of the housing main body 111 is provided with connecting pipes (111a, 111b) that can be connected to the first valve 300 and the second valve 400, the confirmation window 115 is disposed on the housing cover 112 Can be.

In FIG. 2A, the top of the housing 110 is shown in an open state, but the present invention is not limited thereto. For example, the lower part or the side of the housing 110 may be opened, and the housing cover 112 may be provided at the open side. Bolts and nuts may be used as the fixing member 113.

The filter element 120 filters the suspended matter contained in the contaminated water introduced into the housing 110. The filter element 120 is replaceable by being detachably configured by the fixing member F provided inside the housing 110. For example, the housing cover 112 may be detached from the housing 110 by releasing the coupling of the fixing member 113, and then the filter element 120 may be replaced by separating the filter element 120 from the fixing member F.

Referring to FIG. 2B, the filter element 120 has a substantially cylindrical shape having an upper portion and an lower portion open, and includes a mesh structure having a predetermined size at a side thereof, and thus, suspended solids from contaminated water introduced into the filter unit 100. Foreign substances such as can be filtered.

Referring to FIG. 2C, the filter element 120 ′ may be manufactured in a mesh shape to filter out suspended water of contaminated water and in a cylindrical shape having an upper and lower portions as a whole. In this case, the side wall of the filter element 120 ′ may be formed as a whole. It may have a corrugated shape. The pleated filter element 120 'increases the filtration area, allowing a lot of contaminated water to be filtered out.

In the present exemplary embodiment, the case in which the sidewalls of the filter element 120 'are formed in the corrugated shape has been described, but the present exemplary embodiment is not limited thereto. For example, as shown in FIG. 2D, the filter element 120 ″ may have an overall groove shape, or may increase the filtration area to have an embossed concave-convex shape.

The ultrasonic cleaner 130 may be disposed around the filter element 120 to increase the discharge efficiency of the residue deposited on the filter during the backwashing of the water treatment filter system. The ultrasonic cleaning unit 130 is primarily driven to separate the adsorbed debris from the filter element 120 from the filter element 120 to some extent, and then the backwashing is secondarily operated to remove the debris from the filter unit 100. Can be removed completely

Referring back to FIG. 1, in order to increase the filtration efficiency of the contaminated water, a plurality of filter units 100 may be connected in parallel. At this time, one end of the plurality of filter units 100 may be connected to the supply pipe 210 and the other end may be It is connected to the discharge pipe 220 can process a lot of contaminated water introduced through one supply pipe 210 at the same time.

The first valve 300 is disposed between the filter unit 100 and the supply pipe 210 to fluidly connect the filter unit 100 and the supply pipe 210, and the second valve 400 is the filter unit 100. ) Is disposed between the discharge pipe 220 and fluidly connects the filter unit 100 and the discharge pipe 220.

For example, the first valve 300 and the second valve 400 may use a three-way valve having opening and closing holes 301, 302, and 303 open in three directions. The opening and closing holes 301, 302, and 303 of the first valve 300 are connected to the supply pipe 210, the filter unit 100, and the second backwashing pipe 520, respectively, and the opening and closing holes of the second valve 400 are provided. The fields 401, 402, and 403 are connected to the discharge pipe 220, the filter part 100, and the first backwashing pipe 510, respectively.

Whether the opening and closing of the opening and closing holes 301, 302, and 303 is changed according to the operation mode of the first valve 300. For example, during the filtration operation of the contaminated water, the opening and closing holes 301 and 302 connected to the supply pipe 210 and the filter unit 100 are opened, and the opening and closing hole 303 connected to the second backwashing pipe 520 is closed. In the backwashing operation, the opening and closing hole 301 connected to the supply pipe 210 is closed and the opening and closing holes 302 and 303 connected to the second backwashing pipe 520 and the filter part 100 are opened. .

Similarly, the opening and closing of the opening and closing holes 401, 402, and 403 also varies according to the operation mode of the second valve 400. For example, during the filtration operation of the contaminated water, the opening and closing holes 401 and 402 connected to the discharge pipe 220 and the filter part 100 are opened, and the opening and closing hole 403 connected to the first backwashing pipe 510 is closed. In the backwashing operation, the opening and closing hole 401 connected to the discharge pipe 220 is closed and the opening and closing holes 402 and 403 connected to the first backwashing pipe 510 and the filter part 100 are opened. .

The backwashing section operates to remove debris accumulated in the filter section 100. The backwashing section includes first and second backwashing tubes 510 and 420, an air supply 610, and a pump 620.

The first backwashing tube 510 supplies backwashing fluid such as air and / or water to the filter unit 100. To this end, an air supply unit 610 may be provided at one side of the first backwashing tube 510, and the first backwashing tube 510 may be fluidly connected to the discharge pipe 220 through the pump 620.

The air supply unit 610 supplies air to the first backwashing pipe 510 as the first backwashing fluid. The air supplied from the air supply 610 is used for the first backwash, and the air supply 610 may improve the efficiency of the first backwashing by supplying compressed air.

The pump 620 supplies a portion of the water flowing through the discharge pipe 220, that is, the filtered water, to the first backwashing pipe 510 as a second backwashing fluid. Water flowing from the discharge pipe 220 to the first backwashing pipe 510 by the pump 620 is used for the second backwashing fluid, where the pump 620 is filtered water flowing to the first backwashing pipe 510. The efficiency of the second backwash can be enhanced by enhancing the fluid pressure of a portion of the backwash.

The first and second backwashing fluid supplied to the filter unit 100 through the first backwashing tube 510 passes through the filter unit 100, and debris accumulated in the filter unit 100 is removed from the filter unit 100. Isolate. The residue separated from the filter unit 100 through the first backwashing fluid and the second backwashing fluid supplied with a time difference is discharged to the outside through the second backwashing pipe 520. The backwashing fluid may be supplied at a pressure sufficient to separate the deposits deposited on the filter part 100, which may be variably adjusted by the user in consideration of the deposition degree of the residue, the backwash cycle, and the like.

Opening and closing of the first and second valves 300 and 400 depends on an operation mode, and the first and second valves 300 and 400 may be synchronized and operate simultaneously. The operation mode can be divided into a filtration operation mode of contaminated water and a backwash operation mode.

In the filtration operation mode of the contaminated water, the opening and closing hole 303 of the second back washing pipe 520 side of the first valve 300 is blocked and the opening and closing holes 301 and 302 of the supply pipe 210 and the filter part 100 side are blocked. And opening and closing the opening and closing holes 401 and 402 of the discharge pipe 220 and the filter part 100 by blocking the opening and closing hole 403 of the first backwashing pipe 510 side of the second valve 400. The operation is done at the same time.

On the other hand, in the backwash operation mode of the filter unit 100, the opening and closing hole 301 of the supply pipe 210 side of the first valve 300 is blocked and the opening and closing hole of the second backwashing tube 520 and the filter unit 100 side is blocked. 302 and 303 to open and close the opening and closing hole 403 of the discharge pipe 220 side of the second valve 400 and opening and closing hole 401 of the first backwashing pipe 510 and the filter part 100 side. The operation of opening 402 is simultaneously performed.

The opening and closing operations of the first and second valves 300 and 400 may be synchronized by a control signal of the control device 700.

As an example of the present invention, the control device 700 may control each of the first and second valves 300 and 400. The control device 700 controls the water treatment filter system by a pressure difference and a timer between the supply pipe 210 and the discharge pipe 220. The control device 700 synchronizes the control signal applied to the first valve 300 and the control signal applied to the second valve 400, thereby opening and closing the first and second valves 300 and 400 as described above. Can be done at the same time.

Hereinafter, a filtration process of contaminated water will be described with reference to FIG. 1. The solid line of FIG. 1 shows the filtration process of contaminated water.

First, by simultaneously driving the first and second valves 300 and 400, the first and second backwashing pipes 510 and 520 are disconnected from the first and second valves 300 and 400. The driving of the first and second valves 300 and 400 may be performed according to the method described with reference to FIG. 2 or the method described with reference to FIG. 3. Thereafter, when the contaminated water is supplied to the supply pipe 210, the contaminated water flows into the filter unit 100 through the first valve 300. The contaminated water passing through the filter unit 100 is filtered while passing through the filter unit 100, and the filtered water is discharged to the outside through the discharge pipe 220 through the second valve 400.

Hereinafter, the backwashing process of the filter unit will be described with reference to FIG. 1. The backwashing process according to the embodiment of the present invention may be made in two steps. The dotted line in FIG. 1 represents the first backwashing process, and the dashed-dotted line represents the second backwashing process.

 First, by simultaneously driving the first and second valves 300 and 400, the connection between the supply pipe 210 and the discharge pipe 220 and the first and second valves 300 and 400 is blocked. The driving of the first and second valves 300 and 400 may be simultaneously performed according to the method described with reference to FIG. 2 or the method described with reference to FIG. 4.

Thereafter, when the air is supplied through the first backwashing pipe 510 using the air supply unit 610, the air is opened and closed 403 and the filter side of the first backwashing pipe 510 of the second valve 400. Passing through the opening and closing hole 402 is introduced into the filter unit 100. Since air has a predetermined pressure, debris deposited on the filter element 120 is separated from the filter element 120 by pneumatic pressure. The separated debris is discharged through the second backwashing pipe 520 through the filter opening and closing hole 302 and the second backwashing pipe 520 side opening and closing hole 303 of the first valve 300 together with air. Car backwash is performed.

In some cases, since water may remain in the first backwashing pipe 510, the air remaining in the first backwashing pipe 510 passes through the filter unit 100 in the first backwashing process. After passing through the backwashing pipe 520, or may move together.

Then, a portion of the filtered water flowing through the discharge pipe 220 is introduced into the first backwashing pipe 510 by the driving of the pump 620. Since the water flowing into the first backwashing pipe 510 also has a predetermined pressure, the residue deposited on the filter element 120 is separated from the filter element 120 by hydraulic pressure. The debris not separated by the first backwashing process passes through the opening and closing hole 302 on the filter part 100 side of the first valve 300 and the opening and closing hole 303 on the second backwashing pipe 520 side together with water. The second backwash is performed by being discharged through the two backwashing pipes 520.

By performing the second backwashing using air and water, it is possible to increase the removal efficiency of the residue deposited on the filter unit 100, and the backwashing of the plurality of filter units 100 can be performed in a relatively simple configuration, thereby cost and time. This can be saved.

Hereinafter, operations of the filter unit 100 and the first and second valves 300 and 400 according to the operation mode will be described in more detail with reference to FIGS. 3 and 4.

3 and 4 is a state diagram showing the filter portion and the first and second valves in the backwashable water treatment filter system according to an embodiment of the present invention, Figure 3 is a state of filtration of contaminated water, Figure 4 The state of the backwashing operation of the filter portion is shown.

First, the first and second valves 300 and 400 will be briefly described as follows.

Referring to the drawings, the first valve 300 is the opening and closing holes 301, 302, 303 and opening and closing holes 301 connected to the supply pipe 210, the filter unit 100, and the second backwashing pipe 520. And a first opening and closing plate 310 to selectively open and close 302 and 303, and the second valve 400 is connected to the discharge pipe 220, the filter part 100, and the first backwashing pipe 510. The opening and closing holes 401, 402 and 403, and the second opening and closing plate 410 selectively opening and closing the opening and closing holes 401, 402 and 403.

In this case, the first and second opening and closing plates 310 and 410 are provided on the coaxial line, and one end of the shaft of the first and second opening and closing plates 310 and 410 is connected to a driving unit A such as an actuator. The driving unit A may be driven according to the signal of the control device.

The first and second opening and closing plates 310 and 410 may move together upward or downward according to the operation of the driving unit A. FIG. In the present specification, for convenience of description, a case in which the first and second opening and closing plates 310 and 410 move along the top and the bottom thereof is described with reference to FIGS. 3 and 4, but it is not limited thereto. . For example, the first and second opening and closing plates 310 and 410 are configured to rotate, and the openings 301, 302, 303, 401, 402 and 403 are rotated in directions of the first and second opening and closing plates 310 and 410. Is provided in, the opening and closing holes (301, 302, 303, 401, 402, 403) can be selectively opened and closed in accordance with the rotation of the first and second opening and closing plates (310, 410).

Referring to Figure 3, look at the mode of filtration of contaminated water as follows.

When the first and second opening and closing plates 310 and 410 are placed downward by the operation of the driving unit A, the first valve 300 includes the filter unit 100, the supply pipe 210, and the filter unit 100. And the discharge pipe 220 fluidly connected.

For example, since the first opening and closing plate 310 blocks the opening and closing hole 303 of the second back washing tube 520 and simultaneously opens and closes the opening and closing holes 301 and 302 of the filter unit 100 and the supply pipe 210. In addition, the contaminated water introduced through the supply pipe 210 may move to the filter unit 100 through the first valve 300. In addition, since the second opening and closing plate 410 blocks the opening and closing hole 403 of the first backwashing pipe 510 side and simultaneously opens and closes the opening and closing holes 401 and 402 of the filter part 100 and the discharge pipe 220 side. The filtered water passing through the filter part 100 may move to the discharge pipe 220 through the second valve 400.

Looking at the backwash operation mode with reference to Figure 4 as follows.

When the first and second opening and closing plates 310 and 410 are placed upward by the operation of the driving unit A, the first valve 300 includes the filter unit 100 and the first and second backwashing pipes 510, 520 is fluidly connected.

For example, the second opening and closing plate 410 in the second valve 400 blocks the opening and closing hole 401 on the discharge pipe 220 side and at the same time opening and closing hole on the filter unit 100 and the first backwashing pipe 510 side. Since the 402 and 403 are opened, the backwashing fluid flowing through the first backwashing tube 510 may move to the filter unit 100 through the second valve 400. In addition, the first opening and closing plate 310 in the first valve 300 blocks the opening and closing hole 301 of the supply pipe 210 side and at the same time opening and closing hole of the filter unit 100 and the second backwashing pipe 520 side Since 302 and 303 are opened, debris separated from the filter element 120 by the backwashing fluid can be discharged to the second backwashing tube 520 along with the backwashing fluid.

In this embodiment, although the air is used as the first backwash and the water is used as the second backwash, the water can be used as the first backwash and the air can be used as the second backwash. .

Second Embodiment

FIG. 5 is a schematic diagram schematically illustrating a backwashable water treatment filter system (hereinafter, referred to as a water treatment filter system) according to another exemplary embodiment of the present invention, in which a plurality of filter units are connected in parallel.

Referring to FIG. 5, the water treatment filter system 20 includes a filter part 100 for filtering contaminated water, a supply pipe 210 and a discharge pipe 220 fluidly connected to the filter part 100, and a filter part 100. A back detail part for washing the filter part 100 by supplying a fluid in a direction opposite to the filtration direction, and first and second valves 300 and 400, and the back detail part comprises a first reverse fluidly connected to the filter part 100. It is the same as the contents described above with reference to Figures 1 to 4 in that the customs 510 and the second back customs 520.

However, according to the present embodiment, the backwashing fluid supplied for backwashing the filter unit 100 is different from the above-described embodiment in that the backwashing fluid is only air. Thus, unlike the water treatment filter system of FIG. 1, no pump 620 is provided. The same configuration of the water treatment filter system 20 will be replaced with the contents described above with reference to FIGS. 1 to 4, and the following description will focus on differences.

According to this embodiment, since only air is used as the backwashing fluid, the pressure of the air should be supplied to a degree sufficient to remove the residue deposited on the filter part 100, and the first backwashing pipe 510 and the discharge pipe 220 may be It is not fluidly connected.

Referring to Figure 5 describes the operation mode of filtration of contaminated water as follows. The solid line in FIG. 5 shows the filtration process of the contaminated water.

First, by simultaneously driving the first and second valves 300 and 400, the first and second backwashing pipes 510 and 520 are disconnected from the first and second valves 300 and 400. The driving of the first and second valves 300 and 400 may be performed according to the method described with reference to FIG. 2 or the method described with reference to FIG. 3. Thereafter, when the contaminated water is supplied to the supply pipe 210, the contaminated water flows into the filter unit 100 through the first valve 300. The contaminated water passing through the filter unit 100 is filtered while passing through the filter unit 100, and the filtered water is discharged to the outside through the discharge pipe 220 through the second valve 400.

The backwash operation mode of the filter unit will be described with reference to FIG. 5. The backwashing process according to the embodiment of the present invention is a backwashing process using air.

First, by simultaneously driving the first and second valves 300 and 400, the connection between the supply pipe 210 and the discharge pipe 220 and the first and second valves 300 and 400 is blocked. The driving of the first and second valves 300 and 400 may be simultaneously performed, and the specific method may be, for example, in accordance with the method described with reference to FIG. 4.

Thereafter, when the air is supplied through the first backwashing pipe 510 using the air supply unit 610, the air is opened and closed 403 and the filter side of the first backwashing pipe 510 of the second valve 400. Passing through the opening and closing hole 402 is introduced into the filter unit 100. Since the air has a predetermined pressure, the residue deposited on the filter part 100 is separated from the filter element 120 by pneumatic pressure. The separated debris passes through the second backwashing pipe 520 through the opening and closing hole 302 of the filter part 100 side and the second backwashing pipe 520 side of the first valve 300 together with the air. Backwashing is performed by discharge.

Third Embodiment

FIG. 6 is a schematic diagram schematically illustrating a backwashable water treatment filter system (hereinafter, referred to as a water treatment filter system) according to another embodiment of the present invention, in which a plurality of filter units are connected in parallel.

Referring to FIG. 6, the water treatment filter system 30 may include a filter part 100 for filtering contaminated water, a supply pipe 210 and a discharge pipe 220 fluidly connected to the filter part 100, and a filter part 100. A back detail part for washing the filter part 100 by supplying a fluid in a direction opposite to the filtration direction, and first and second valves 300 and 400, and the back detail part comprises a first reverse fluidly connected to the filter part 100. It is the same as the contents described above with reference to Figures 1 to 4 in that the customs 510 and the second back customs 520.

However, according to the present embodiment, a part of the filtered water, that is, water is used as the backwashing fluid supplied for backwashing of the filter unit 100, and thus, the difference from the above-described embodiment is different. Thus, unlike the water treatment filter system 10 of FIG. 1, the air supply unit 610 is not provided. The same configuration of the water treatment filter system 30 will be replaced with the contents described above with reference to FIGS. 1 to 4, and the following description will focus on differences.

According to this embodiment, since only water is used as the backwashing fluid, the water pressure should be supplied to a degree sufficient to remove the residue deposited on the filter part 100, and the first backwashing pipe 510 and the discharge pipe 220 are pumps 620. Fluidly connected through) is as described above.

Referring to Figure 6 describes the operation mode of filtration of contaminated water as follows. 6 shows the filtration process of contaminated water.

First, by simultaneously driving the first and second valves 300 and 400, the first and second backwashing pipes 510 and 520 are disconnected from the first and second valves 300 and 400. The driving of the first and second valves 300 and 400 may be performed according to the method described with reference to FIG. 2 or the method described with reference to FIG. 3.

Thereafter, when the contaminated water is supplied to the supply pipe 210, the contaminated water flows into the filter unit 100 through the first valve 300. The contaminated water passing through the filter unit 100 is filtered while passing through the filter unit 100, and the filtered water is discharged to the outside through the discharge pipe 220 through the second valve 400.

Referring to Figure 6 describes the backwash operation mode of contaminated water. The backwashing process according to the embodiment of the present invention is a backwashing process using water.

First, by simultaneously driving the first and second valves 300 and 400, the connection between the supply pipe 210 and the discharge pipe 220 and the first and second valves 300 and 400 is blocked. The driving of the first and second valves 300 and 400 may be simultaneously performed, and the specific method may be, for example, in accordance with the method described with reference to FIG. 4.

Thereafter, a part of the filtrate flowing through the discharge pipe 220 flows into the first backwashing pipe 510 by driving the pump 620. Debris accumulated in the filter part is separated from the filter by the water pressure of the water introduced into the first backwashing pipe 510, and the opening and closing hole 302 and the second backwashing pipe (side) of the filter part 100 of the first valve 300 ( The backwash is performed by passing through the second opening and closing hole 303 through the second opening and closing hole 303.

<Fourth Embodiment>

FIG. 7 is a schematic diagram schematically illustrating a backwashable water treatment filter system (hereinafter, referred to as a water treatment filter system) according to another exemplary embodiment of the present invention, in which a plurality of filter units are connected in parallel.

Referring to FIG. 7, the water treatment filter system 40 includes a filter part 100 for filtering contaminated water, a supply pipe 210 and a discharge pipe 220 fluidly connected to the filter part 100, and a filter part 100. A back detail part for washing the filter part 100 by supplying a fluid in a direction opposite to the filtration direction, and first and second valves 300 and 400, and the back detail part comprises a first reverse fluidly connected to the filter part 100. It includes the customs 510 and the second back washing pipe 520, and the same as the embodiment described above with reference to Figure 6 in that the backwashing fluid supplied for backwashing the filter unit 100 is part of the filtered water.

However, in order to increase the efficiency of backwashing, the filter water storage supply part 800 is further provided in that the difference is seen. Hereinafter, the same configuration and filtration operation mode of the water treatment filter system 40 will be replaced with the contents described above with reference to FIG. 6, and hereinafter, the difference between the backwash operation mode and the configuration thereof will be described.

The discharge pipe 220 and the first backwashing pipe 510 are fluidly connected through the branch pipe 600, and part of the filtered water flowing through the discharge pipe 220 according to the operation of the valve 610 provided in the branch pipe 600. May flow toward the first backwashing tube 510.

The filtered water storage supply unit 800 stores at least a portion of the filtered water, and the stored filtered water may be used for backwashing the filter unit 100. To this end, the filtrate storage supply unit 800 includes a tank 810 in which filtrate is stored, and the tank 810 may be fluidly connected to the first backwashing tube 510 through a connecting pipe 820. One side of the 810 may be provided with an air vent valve 830 and the compressed air supply pipe 840.

Filtrate water may be stored in the tank 810 by manipulation of the valve 610 and the air vent valve 830 provided in the branch pipe 600. For example, when the air vent valve 830 is driven while the valve 610 is open, a pressure difference occurs in the tank 810, so that the filtered water flowing through the discharge pipe 220 rides through the branch pipe 600 and is connected to the pipe 820. May be stored in the tank 810.

The filtered water stored in the tank 810 may be used for backwashing the filter, which will be described below.

First, by simultaneously driving the first and second valves 300 and 400, the connection between the supply pipe 210 and the filter unit 100 of the discharge pipe 220 is cut off. The driving of the first and second valves 300 and 400 may be simultaneously performed, and the specific method may be, for example, in accordance with the method described with reference to FIG. 4.

With the valve 610 closed and the fluid connection between the discharge pipe 220 and the first backwashing pipe 510 through the branch pipe 600 is released and the valve 845 is open, the control device 700 (see FIG. 1) is opened. By driving, a large amount of compressed air may be introduced into the tank 810 through the compressed air supply pipe 840.

The filtered water stored in the tank 810 by the air introduced into the tank 810 flows into the first backwashing pipe 510 and may be used for backwashing the filter unit 100.

The water flowing into the first backwashing pipe 510 separates the debris deposited on the filter part 100 from the filter part 100, and the separated debris is opened and closed on the filter part 100 side of the first valve 300. Backwashing is performed by passing through the second backwashing pipe 520 after passing through the opening and closing hole 303 of 302 and the second backwashing pipe 520.

<Fifth Embodiment>

FIG. 8 is a schematic view schematically illustrating a backwashable water treatment filter system (hereinafter, referred to as a water treatment filter system) according to another embodiment of the present invention, in which a plurality of filter units are connected in parallel.

Referring to FIG. 8, the water treatment filter system 50 includes a filter part 100 for filtering contaminated water, a supply pipe 210 and a discharge pipe 220 fluidly connected to the filter part 100, and a filter part 100. A back detail part for washing the filter part 100 by supplying a fluid in a direction opposite to the filtration direction, and first and second valves 300 and 400, and the back detail part comprises a first reverse fluidly connected to the filter part 100. It includes the customs 510 and the second back washing pipe 520, and the same as the embodiment described above with reference to Figure 6 in that the backwashing fluid supplied for backwashing the filter unit 100 is part of the filtered water.

However, in order to increase the efficiency of backwashing, the difference is shown in that it further includes the filtered water storage supply unit 900. Hereinafter, the same configuration and filtration operation mode of the water treatment filter system 50 will be replaced with the contents described above with reference to FIG. 6, and hereinafter, the difference between the backwash operation mode and the configuration thereof will be described.

The discharge pipe 220 and the first backwashing pipe 510 are fluidly connected through the branch pipe 600, and part of the filtered water flowing through the discharge pipe 220 according to the operation of the valve 610 provided in the branch pipe 600. May flow toward the first backwashing tube 510.

The filtered water storage supply unit 900 stores at least a portion of the filtered water, and the stored filtered water may be used for backwashing the filter unit 100. To this end, it includes a tank 910 for storing the filtered water, and includes a cylinder 915 for supplying the water stored in the tank 910 to the connecting pipe 920 and the first backwashing pipe 510 side, the cylinder 915 One side of the air purge valve 930 and the compressed air supply pipe 940 may be provided.

Filtrate water may be stored in the tank 910 by the operation of the valve 610 and the air purge valve 930 provided in the branch pipe 600. For example, when the air purge valve 930 is driven while the valve 610 is open, a pressure difference occurs in the cylinder 915, so that the filtered water flowing through the discharge pipe 220 rides through the branch pipe 600 and the connection pipe 920. ) May be stored in the tank 910.

The filtered water stored in the tank 910 may be used for backwashing the filter. Hereinafter, the backwashing operation mode of the filter unit will be described.

First, by simultaneously driving the first and second valves 300 and 400, the connection between the supply pipe 210 and the filter unit 100 of the discharge pipe 220 is cut off. The driving of the first and second valves 300 and 400 may be simultaneously performed, and the specific method may be, for example, in accordance with the method described with reference to FIG. 4.

With the valve 610 closed and the valve 945 open, a large amount of compressed air may be introduced into the cylinder 915 through the compressed air supply pipe 940 by driving the control device 700 (see FIG. 1). .

The cylinder unit 915a moves by the air introduced into the cylinder 915, and the filtered water flows into the first backwashing pipe 510.

Water introduced into the first backwashing pipe 510 moves the filter part 100 and separates the accumulated debris from the filter part 100. The separated debris is discharged through the second backwashing pipe 520 through the opening and closing hole 302 of the filter unit 100 side and the second backwashing pipe 520 side of the first valve 300, and then backwashed. Is performed.

7 and 8 may be used in the water treatment filter system described with reference to FIG. 1 to store the filtrate through the filtrate storage supply unit 800 and 900 and to use the stored filtrate and compressed air.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, it is intended that the appended claims cover all such modifications and variations as fall within the true spirit of the invention.

10, 20, 30: water treatment filter system 100: filter part
120: filter element 210: supply pipe
220: discharge pipe 300: first valve
310: first opening and closing plate 400: second valve
410: second opening and closing plate 510: first backseat
520: second backwash tube 610: air supply unit
620: pump 700: control unit
800, 900: filtered water storage supply 810: tank
820: connector 830: air vent valve
840: compressed air supply pipe 910; Tank
915: cylinder 930: air purge valve

Claims (14)

Filter unit for filtering the contaminated water;
A supply pipe fluidly connected to the filter part and supplying the contaminated water to the filter part;
A discharge pipe fluidly connected to the filter part and discharging the filtered water filtered by the filter part;
A backwashing part for supplying a backwashing fluid, which is at least one of air and water, in a direction opposite to the filtration direction of the contaminated water to remove debris accumulated in the filter part;
A first valve connecting the supply pipe and the filter part to block connection of the supply pipe and the filter part when the backwash part is operated; And
And a second valve which connects the discharge pipe and the filter part to block the connection of the discharge pipe and the filter part during operation of the backwashing part. The method of claim 1,
The back detail is,
A first backwashing tube fluidly connected to the filter part and supplying the backwashing fluid for backwashing to the filter part; And
And a second backwash tube fluidly connected to the filter unit and discharging the fluid passing through the filter unit. The method of claim 2,
And the first valve and the second valve are synchronized to drive together during the filtration operation of the filter portion and the backwash operation of the filter portion. The method of claim 2,
The first valve includes opening and closing holes connected to the supply pipe, the filter part, and the second backwashing pipe, and a first opening and closing plate to selectively open and close the opening and closing holes,
The second valve includes opening and closing holes connected to the discharge pipe, the filter unit, and the first backwashing pipe, and a second opening and closing plate to selectively open and close the opening and closing holes,
And the first opening and closing plate and the second opening and closing plate are provided on a coaxial line to selectively open and close the opening and closing hole by moving or rotating in the vertical direction. The method of claim 2,
The first backwashing tube is connected to an air inlet and supplies a portion of the filtered water flowing through the discharge pipe to the first backwashing tube so as to sequentially supply air and water, which is backwashing fluid, to the filter unit. A backwashable water treatment filter system connected to the supplying pump. The method of claim 2,
And a filtrate storage supply for storing at least a portion of the filtrate and being in fluid communication with the first backwashing vessel for supplying at least a portion of the stored filtrate to the backwashing fluid. The method of claim 1,
And a plurality of filter units, the backwashable water treatment filter system being connected in parallel with the supply pipe, the discharge pipe, and the backwashing part. The method of claim 1,
And said filter portion includes a filter element for filtering contaminated water and an ultrasonic cleaner disposed around the filter element. The method of claim 1,
The filter unit includes:
A housing including a housing body and a housing cover provided on one side of the housing body to seal the inside thereof, and including a confirmation window through which the inside of the housing body is viewed; And
And a filter element provided in the housing and including an uneven surface. A backwashing method of a water treatment filter system having a filter portion for filtering contaminated water, a supply pipe for supplying the contaminated water to the filter portion, and a discharge pipe for discharging the filtered water passing through the filter portion,
Driving a second valve connected to the filter unit to block the connection of the discharge pipe and the filter unit;
Driving a first valve connected to the filter unit to cut off the connection between the supply pipe and the filter unit;
Supplying at least one fluid of air and water in a direction opposite to a filtration direction of the contaminated water through a first backwashing tube fluidly connected to the filter unit; And
And discharging the fluid passing through the filter portion through a second backwash tube fluidly connected to the filter portion. The method of claim 10,
Driving the second valve to cut off the connection between the discharge pipe and the filter part, and driving the first valve to cut off the connection between the supply pipe and the filter part are simultaneously performed,
The step of blocking the connection of the discharge pipe and the filter unit by driving the second valve may include fluidly connecting the first backwashing tube and the filter unit, and may drive the first valve to supply the supply pipe and the filter. Blocking the connection of the negative backwashing method comprising the step of fluidly connecting the second backwashing tube and the filter unit. The method of claim 11,
Simultaneously driving the second valve to cut off the connection of the discharge pipe and the filter unit, and driving the first valve to cut off the connection of the supply pipe and the filter unit,
Simultaneously driving a first opening and closing plate for selectively opening and closing the opening and closing holes of the first valve using the same drive unit, and a second opening and closing plate provided on the same coaxial line with the first opening and closing plate and selectively opening and closing the opening and closing holes of the valve Backwashing method of water treatment filter system comprising the step of. The method of claim 10,
Supplying the fluid,
A first backwashing step of supplying air to the filter part through the first backwashing pipe;
Supplying a portion of the filtered water flowing through the discharge pipe to the first backwashing pipe by using a pump; And
And a second backwashing step of supplying a portion of the filtrate to the filter unit through the first backwashing tube. The method of claim 10,
Prior to the step of supplying the fluid,
And driving the ultrasonic cleaning unit provided in the filter unit to separate the debris deposited on the filter unit.

Images