KR200420158Y1 - Automatic Precision Filtration Device - Google Patents

Abstract

The present invention relates to an automatic precision filtration device which naturally filters raw water downward without the internal power source inside the filtration tank and can automatically repeat the filtration process and the back washing process through a timer. A filtration tank having a filter material laminated to have a filtration material, and a raw water inlet pipe which is penetrated by the lower sidewall of the filtration tank and interlocked with an inner center and is bent upward to have a predetermined length, and is spaced a predetermined distance from the end of the sidewall of the raw water inlet pipe. It is penetrated upward spaced, and interlocked inward to form a double pipe surrounding the predetermined length bent upward of the raw water inlet pipe, and has a purified water outlet pipe opening the lower side of the double pipe, the raw water inlet pipe and the purified water outlet A pump provided at one end of the pipe to control the flow of raw water and purified water, and the raw water inlet pipe Contaminated water discharge pipe provided between the pump and the double pipe of the purified water discharge pipe is provided with a strainer to prevent the separation of the filter medium, and the raw water inlet and outlet through the raw water inlet pipe and the purified water outlet pipe It is provided with a backwashing device for removing the foreign matter inside the filtration tank by controlling the direction of the, characterized in that consisting of a control box for automatically and semi-automatically operating the backwashing device.

 Water treatment, cooling water, industrial water, filter, filtration equipment, backwash, sand filter

Description

Automatic Precision Filtration Device

1 is a configuration diagram showing an example of a conventional filtration device,

Figure 2 is a configuration diagram showing an example of the automatic precision filtration device of the present invention,

3 is a block diagram showing a three-way valve of the automatic precision filtration device of the present invention,

Figure 4 is a configuration diagram showing an example of the filtration operation of the automatic microfiltration device of the present invention,

Figure 5 is a block diagram showing an example of the backwash operation of the automatic microfiltration apparatus of the present invention.

[Explanation of symbols on the main parts of the drawings]

10: filtration tank 11: filter medium

12: pressure indicator 13: drain valve

20: raw water inlet pipe 20A: contaminated water discharge pipe

21: pressure switch 30: purified water outlet pipe

31: double pipe 40: pump

50: strainer 60: backwash device

61A, 61B: 3-way valve 62: actuator

70: control box 71A, 71B, 71C: status display lamp

72: power switch 73: manual switch

74: timer T: separation tube

The present invention relates to a filtration apparatus for filtering and reusing industrial wastewater, and more specifically, the filtration tank is provided with a stack of filter media on the inside, a raw water supply pipe for supplying raw water to the filter media and purified water filtered through the filter media It is composed of a purified water discharge pipe that discharges the raw water, without a separate internal power source inside the filtration tank, and naturally relates to an automatic microfiltration device capable of automatically repeating the filtration process and backwashing process through a timer.

At present, various industrial wastewater used as industrial water and cooling water is purified and reused to prevent deterioration of water pollution and at the same time install a filtration device to reduce the overall maintenance cost by reducing waste of industrial water and cooling water. It is running.

In a general filtration apparatus, a sand filter for purifying wastewater using fine sand as a filter medium is widely used. As an example, a filtration tank 110 filled with a filtration sand 100 as shown in FIG. 1 and the filtration Raw water inlet pipe 120 connected to the lower portion of the tank 110, the purified water outlet pipe 130 connected to the upper portion of the filtration tank 110, the upper and lower centers of the filtration tank 110 is installed to connect the The rising pipe 150 equipped with a compressed air discharger 140 in the lower portion, the separation tank 160 installed on the upper portion of the rising pipe 150, the discharge pipe 170 connected to the upper side of the separation tank 160 and the It is connected to the lower portion of the separation tank 160 is installed to surround the riser pipe 150, the inner pipe is composed of the separation pipe 180 is curved.

The conventional sand filter as described above is sufficient to separate the pollutants deposited on the filter yarn 100 by crossing the separated filtered water rising in the curved inner passage of the separation pipe 180 to separate the pollutants sufficiently. In addition, because the contaminants are spontaneously injured in the separation tank 160 to discharge the contaminants to the discharge pipe 170, the floating contaminants of the separated contaminants are not sufficiently removed, and the filtration When the yarn 100 is returned to the upper side of the filtration tank 110 again, further separation and injury occur at the upper side of the filtration tank 110, so that the contaminant is returned to the purified water flowing out to the purified water outlet pipe 130. There was a problem that the water purification treatment of raw water is not made enough to be included.

On the other hand, the sand filter takes a lot of time for filtration by introducing a large amount of contaminated water into the filtration tank 110 at a time, thereby increasing the size of the filtration tank 110, thereby cooling water storage tank or industrial water Due to the nature of the installation depending on the number of storage tanks, there was a problem that a lot of space constraints and equipment costs.

In addition, to remove the foreign matter deposited on the filter sand 100 of the sand filter is provided with a backwashing device for washing the filter sand 100 by backwashing the purified water in order to maintain a constant filtration efficiency, A plurality of pipes are installed on the inlet pipe 120 and the purified water outlet pipe 130, and valves are provided at each end thereof, so that foreign materials deposited on the upper surface of the filter sand 100 by flowing the raw water in the reverse direction during backwashing. This flotation is discharged to clean the filter sand 100, but the installation cost increases due to complicated piping equipment, and the valve must be manually operated for backwashing due to the backwashing process that must be frequently performed according to the filtration efficiency. It was troublesome.

Therefore, the present invention was devised in view of the above-described conventional problems, and a first object of the present invention is to minimize waste of raw water by maximizing filtration efficiency in filtration of industrial water and cooling water.

The second object of the present invention is to achieve a spatial and cost reduction by filtering the industrial water and cooling water, which is composed of relatively small scale and simple equipment.

The third object of the present invention is to increase the work efficiency and the need for fixed manpower for filtration and backwashing by automatically repeating the backwashing and filtration work according to the set time.

An object of the present invention as described above, in the water treatment apparatus provided to filter and reuse the industrial water and cooling water, the filter tank is formed with a predetermined size is provided with a filter material laminated to have a predetermined width inside;

A raw water inlet pipe which is penetrated through the lower sidewall of the filtration tank and interlocked with the inner center and is bent upward to have a predetermined length;

A purified water outlet pipe which is penetrated spaced upward from the end of the side wall of the raw water inlet pipe and is interlocked inward and is formed into a double pipe that wraps up a predetermined length of the raw water inlet pipe and opens at a lower side of the double pipe;

A pump provided at one end of the raw water inlet pipe and the purified water outlet pipe to control the flow of raw water and purified water;

A contaminated water discharge pipe provided between the raw water inlet pipe and the pump;

A strainer provided at a predetermined height of the double pipe of the purified water outlet pipe to prevent separation of the filter medium;

A backwashing device for removing foreign matter inside the filtration tank by controlling the direction of inflow and outflow of raw water through the raw water inlet pipe and the purified water outlet pipe;

This is achieved by the construction of a control box which automatically and semi-automatically operates the backwashing device.

On the other hand, in the present invention, the raw water inlet pipe, the raw water flowing from the storage tank side to maintain a constant pressure, may be provided with a pressure switch to automatically backwash operation when the pressure is exceeded.

In addition, in the present invention, the filter medium may be filled as produced in the specification of 0.45 to 0.55mm as spherical silica crystals.

On the other hand, in the present invention, the backwashing device is equipped with a three-way valve at each end of the raw water inlet pipe and the purified water outlet pipe, respectively, provided with a separation pipe for interlocking one side of the three-way valve, It can be configured as an actuator for rotating the directional valve 90 °.

In addition, in the present invention, the control box is provided with at least one status display lamp for displaying the operating state, the power switch for supplying power to the pump, the manual switch for controlling the actuator and the actuator automatically It can be configured as a backwash timer to activate.

On the other hand, in the present invention, the backwash timer may be configured to control the backwash operation cycle and the operation duration.

Other objects, advantages and features of the present invention and the subject innovation will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

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

In the accompanying drawings of the present invention, Figure 2 is a block diagram showing an example of the automatic microfiltration device of the present invention, Figure 3 is a block diagram showing a three-way valve of the automatic microfiltration device of the present invention, Figure 4 is a block diagram showing an example of the filtration operation of the automatic microfiltration apparatus of the present invention, Figure 5 is a block diagram showing an example of the backwash operation of the automatic microfiltration device of the present invention.

In the water treatment apparatus provided to filter and reuse the industrial water and cooling water of the present invention, the filtration tank 10 is provided with a filter material (11) formed to have a predetermined size and laminated to have a predetermined width, and the It is provided with a raw water inlet pipe 20 which is penetrated through the lower side wall of the filtration tank 10 and interlocked to the inner center and is bent upward to have a predetermined length, and spaced upwardly from the end of the side wall of the raw water inlet pipe 20. It is penetrated and interlocked inward to form a double pipe 31 surrounding the predetermined length bent upward of the raw water inlet pipe 20, the purified water outlet pipe 30 and the lower side of the double pipe 31 is opened Raw water inlet pipe 20 and the purified water outlet pipe 30 is provided at one end of the pump 40 for controlling the flow of raw water and purified water.

In addition, the raw water inlet pipe 20 is provided with a pressure switch 21 for measuring the pressure of the raw water flowing into the filtration tank 10 from the storage tank (1) to automatically reverse when the pressure of the raw water increases It is equipped to operate washing.

On the other hand, the filter tank 10 in more detail, having a pressure indicator 12 for measuring the pressure of the raw water flowing into the upper one side, the drain valve is discharged to the lower side to discharge the inner raw water and purified water (13), a strainer (50) for preventing the separation of the filter medium (11) filled in the inner side is provided at a predetermined height of the double pipe (31) side of the purified water outlet pipe (30).

It is preferable that the filter medium 11 is filled with spherical silica crystals produced in a 0.45-0.55 mm standard for water purification efficiency.

In addition, by controlling the direction of the inflow and outflow of the raw water through the raw water inlet pipe 20 and the purified water outlet pipe 30 to be provided with a backwashing device 60 for removing foreign matter inside the filtration tank (10) If this is explained in more detail as follows.

Separation pipes having three-way valves 61A and 61B mounted at both ends of the raw water inlet pipe 20 and the purified water outlet pipe 30, respectively, and interlocking one side of the three-way valves 61A and 61B ( T) and an actuator 62 for changing the directions of the raw water inlet and outlet channels by rotating the three-way valves 61A and 61B by 90 degrees.

On the other hand, it includes a control box 70 for automatically and semi-automatically operating the backwashing device 60, the control box 70 is at least one or more status display lamps (71A, 71B, 71C) to display the operating state And a power switch 72 for supplying power to the pump 40, a manual switch 73 for controlling the actuator 62, and a backwash timer 74 for automatically operating the actuator 62. It consists of.

The backwash timer 74 may be provided to control the backwash operation cycle and the operation duration.

Reference numeral "1" is a storage tank for storing cooling water or industrial water.

Reference numerals "2" and "3" are connection pipes provided above and below the storage tank 1.

The backwashable precision filtration device of the present invention configured as described above is provided in conjunction with upper and lower connecting pipes 2 and 3 of the storage tank 1 for storing industrial water or cooling water, as shown in FIG. One end of the pump 40 is connected to an end of the lower connection pipe 3, and the other side of the pump 40 is connected to a T-shaped separation pipe T having a predetermined length but the end of which is separated to both sides.

Meanwhile, three-way valves 61A and 61B are coupled to both ends of the separation pipe T, respectively, and the three-way valves 61A and 61B are respectively the raw water inlet pipe 20 and the purified water outlet pipe 30. In combination with the), the three-way valve (61A, 61B) by the 90 ° rotation of the flow of the internal fluid is switched to control the filtration and backwashing of the raw water.

Referring to the back washing operation through the three-way valve (61A, 61B) in more detail according to Figure 3, one side of the upper three-way valve (61A) coupled through the separation pipe (T) is the purified water outlet pipe ( 30), the other side is interlocked with the upper connection pipe (2) of the storage tank (1), one side of the upper three-way valve (61B) is interlocked with the raw water inlet pipe (20), the other side Is provided to interlock with the contaminated water discharge pipe (20A), the raw water inside the storage tank (1) is supplied to the separation pipe (T) side through the pump 40, the three-way valve (61A, 61B) In the future, career paths may be alternatively chosen.

Hereinafter will be described in more detail through a preferred embodiment according to the filtration and backwashing process of the raw water.

Example according to the filtration process

In the backwashing device 60 as shown in FIG. 4, one side of the upper three-way valve 61B is interlocked with the purified water outlet pipe 20, and the other side is interlocked with the connecting pipe 2 and the lower side 3. One side of the directional valve 61B is interlocked with the separation pipe T, and the other side is interlocked with the raw water inlet pipe 20 so that raw water introduced through the pump 40 is lower three-way valve 61B. It flows through the raw water inlet pipe 20 through the lower side to be introduced into the filtration tank (10).

In addition, the raw water inlet pipe 20 having a length toward the inner center side of the filtration tank 10 is bent upward from the center side to have a length above the filtration tank 10, the raw water is the filtration tank 10 In order to be ejected to the upper side of the filter medium 11 is placed on the upper surface of the filter medium 11 is laminated to a predetermined width to pass through the filter medium 11 naturally by gravity to be filtered to the lower side of the filtration tank 10.

On the other hand, a predetermined amount of filtered purified water stored in the lower side of the filtration tank 10 is discharged to the outside by the pressure, the double pipe 31 of a predetermined length on the bent upward side of the raw water inlet pipe 20 And the other side of the double pipe 31 is interlocked with the purified water outlet pipe 30 so that the purified water is discharged through the lower opening of the double pipe 31 along the opened double pipe 31. ) And let it out.

The filter material 11 is filled with spherical silica crystals produced in the specification of 0.45 to 0.55 mm to maximize the filtration efficiency of raw water, but can be filled with various filter materials 11 for those skilled in the art to easily implement. It is.

In addition, the strainer 50 is provided on the lower side of the filter medium 11 to prevent the filter medium 11 from flowing out along the raw water and the purified water through a filtration process. At the same time, it can be provided with various types of strainers to effectively prevent the separation of the filter medium (11).

On the other hand, the filtered purified water flowing toward the purified water outlet pipe 30 flows to the connecting pipe (2) interlocked through the upper three-way valve (61A) is introduced into the storage tank (1) and reused, the filtration By repeating the process arbitrarily, the raw water inside the storage tank 1 is continuously filtered and managed.

Example according to backwash process

As shown in FIG. 5, the upper three-way valve 61A is rotated 90 ° so that one side is interlocked with the separation pipe T and the other side is connected to the purified water outlet pipe 30, and the lower three-way valve 61B is rotated by 90 °. It is also rotated 90 ° one side is linked to the raw water inlet pipe 20, the other side is to be linked to the polluted water discharge pipe (20A).

Therefore, the raw water flows out of the storage tank 1 through the pump 40 toward the separation pipe T and flows the purified water along the upper three-way valve 61A interlocked with the separation pipe T. It is introduced into the filtration tank 10 through the pipe (30).

The raw water flowing into the filtration tank 10 has a pressure from the lower side to the upper side of the filtration tank 10 due to the inflow through the double pipe 31, and the raw water continuously flows through the purified water outlet pipe 30. As a result, the amount of raw water under the filtration tank 10 is increased, and thus, the water level is naturally increased to penetrate the strainer 50 so that the raw water beyond the upper layer of the filter medium 11 is upper surface of the filter medium 11 during the filtration process. This removes foreign matter deposited on the surface.

On the other hand, foreign matter removed through the process is suspended with the raw water is discharged to the outside of the filtration tank 10 through the inner upper end of the win water inlet pipe 20 of a certain height, the lower three-way valve (61B) Due to the flow to the polluted water discharge pipe (20A), the foreign matter inside is discharged with a small amount of raw water.

The three-way valve (61A, 61B) for determining the raw water path of the filtration process and the back washing process is automatically rotated in accordance with the electrical signal, the actuator 62 is provided on one side of the three-way valve ( 61A and 61B are rotated in pairs.

On the other hand, the filtration tank 10 measures the efficiency of the filtration of the filter medium 11 through the pressure indicator 12 to display the internal pressure on the upper side, accordingly backwashing to remove foreign substances from the raw water from time to time By removing it, the pollution concentration of raw water can be maintained.

In addition, the control box 70 is provided on one side in order to automatically repeat the filtration process and the back washing process, and to the pump 40 and the actuator 62 through the power supply switch 72. The power is supplied and set to repeat the filtration process and the backwashing process according to the time input to the timer 74.

The timer 74 may be provided to additionally set not only the repetition cycle of the filtration process and the back washing process but also the duration of the back washing, etc. It may be provided with a modification.

In addition, by providing at least one of the status display lamps 71A, 71B, 71C in the control box 70, it is possible to easily distinguish the power supply, the filtration process and the backwashing process of the filtration device, and the manual switch 73 ) Allows the user to perform the filtration or backwashing process at any time.

On the other hand, the pressure switch 21 is the concentration of the suspended solids or contamination of the raw water inside the storage tank (1) is rapidly turbid, so that the raw water inflow into the filtration tank 10 through the raw water inlet pipe 20 It is used when it is not smooth or when the timer and manual backwashing are not possible due to the unexpected time and situation. When the pressure of the raw water flowing into the raw water inlet pipe 20 is exceeded, the pressure is automatically set. In this way, the back washing process is operated to maintain the state of the filtration tank 10 in an optimized state at a predetermined value.

On the other hand, in the present invention, the raw water inlet pipe 20 and the purified water outlet pipe 30 and the filtration tank 10 freezes by discharging raw water or purified water inside the filtration tank 10 when not in winter use It is preferable to include the drain valve 13 below the filtration tank 10 in order to prevent that.

That is, the present invention is provided with three-way valve (61A, 61B) at each of the outer ends of the raw water inlet pipe 20 and the purified water outlet pipe 30 are separated up and down, the three-way valve (61A, 61B) Rotate 90 ° through the automatic operation of the raw water to change the direction of inflow and outflow, and during the filtration the raw water is ejected to the upper side to naturally penetrate the filter medium 11 by gravity, the filtered purified water is the double pipe (31) Re-introduced into the storage tank (1) through the purified water discharge pipe 30 that is interlocked with), and the raw water introduced into the lower portion of the filtration tank 10 through the purified water discharge pipe (30) when backwashing is accumulated The water level is increased, so that the foreign matter deposited naturally on the filter medium 11 is suspended together with the water level of the raw water to be discharged through the contaminated water discharge pipe (20A) linked to the raw water inlet pipe (20) There is a characteristic.

With the use of the backwashable precision filtration device of the present invention, which is constructed and functioned as described above, in the filtering of industrial water and cooling water, there is little space constraint for installation due to relatively simple equipment, and thus installation cost This has the effect of being reduced.

In addition, it is possible to automatically repeat the backwashing and filtration work according to the preset time, thereby increasing the need for fixed manpower for filtration and backwashing and increasing the working efficiency. As a result, since the amount of industrial water discharged is significantly reduced, there is a great effect to suppress the spread of water pollution.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be readily apparent to those skilled in the art that various other modifications and variations are possible without departing from the spirit and scope of the present invention. It is obvious that it belongs to the scope of the attached utility model registration request.

Claims (6)

A water treatment apparatus provided to filter and reuse industrial water and cooling water, the water treatment device comprising: a filtration tank 10 having a filter material 11 formed to have a predetermined size and stacked to have a predetermined width therein; A raw water inlet pipe 20 penetrating through the lower sidewall of the filtration tank 10 and interlocking with the inner center and bent upward to have a predetermined length; It is formed by a double pipe 31 which is spaced apart from the end of the side wall of the raw water inlet pipe 20 by a predetermined interval and interlocked inward to surround a predetermined length bent upward of the raw water inlet pipe 20, and the double pipe 31 And a purified water outlet pipe 30 in which a lower surface of the bottom surface is opened; A pump 40 provided at one end of the raw water inlet pipe 20 and the purified water outlet pipe 30 to control the flow of raw water and purified water; A contaminated water discharge pipe 20A provided between the raw water inlet pipe 20 and the pump 40; A strainer (50) provided at a predetermined height of the double pipe (31) side of the purified water outlet pipe (30) to prevent separation of the filter medium (11); A backwashing device (60) for removing foreign substances inside the filtration tank (10) by controlling the direction of inflow and outflow of raw water through the raw water inlet pipe (20) and the purified water outlet pipe (30); Automatic precision filtration device, characterized in that consisting of a control box 70 for automatically and semi-automatically operating the backwashing device (60). According to claim 1, wherein the raw water inlet pipe 20, the raw water flowing from the storage tank 1 side to maintain a constant pressure, when the pressure is provided with a pressure switch 21 for automatically backwash operation Automatic precision filtration device characterized in that. 2. The automatic microfiltration device as claimed in claim 1, wherein the filter medium (11) is filled with spherical silica crystals produced to a size of 0.45 to 0.55 mm. According to claim 1, wherein the backwashing device (60) is equipped with three-way valve (61A, 61B) on both ends of the raw water inlet pipe 20 and the purified water outlet pipe 30, respectively, the three-way valve ( An automatic precision filtration device including a separation pipe (T) for interlocking one side of the 61A, 61B, and an actuator (62) for rotating the three-way valve (61A, 61B) by 90 °. The power supply switch 72 of claim 1, wherein the control box 70 includes at least one status indicator lamp 71A, 71B, 71C indicating an operating state, and supplies power to the pump 40. And a manual switch (73) for controlling the actuator (62) and a backwash timer (74) for automatically operating the actuator (62). 5. The automatic microfiltration apparatus as claimed in claim 4, wherein the backwash timer (74) is configured to control the backwash operation cycle and the operation duration.

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