KR20130127831A - A filter self-cleaning system for measuring contaminated substance - Google Patents

A filter self-cleaning system for measuring contaminated substance Download PDF

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Publication number
KR20130127831A
KR20130127831A KR1020120051629A KR20120051629A KR20130127831A KR 20130127831 A KR20130127831 A KR 20130127831A KR 1020120051629 A KR1020120051629 A KR 1020120051629A KR 20120051629 A KR20120051629 A KR 20120051629A KR 20130127831 A KR20130127831 A KR 20130127831A
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KR
South Korea
Prior art keywords
sample
water supply
filtration
flow rate
filtering
Prior art date
Application number
KR1020120051629A
Other languages
Korean (ko)
Inventor
김현욱
이재준
함용규
김관수
김재령
권영진
유재준
Original Assignee
서울시립대학교 산학협력단
동일시마즈 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 서울시립대학교 산학협력단, 동일시마즈 주식회사 filed Critical 서울시립대학교 산학협력단
Priority to KR1020120051629A priority Critical patent/KR20130127831A/en
Publication of KR20130127831A publication Critical patent/KR20130127831A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
    • B01D29/603—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by flow measuring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/08—Regeneration of the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/16—Valves
    • B01D2201/165—Multi-way valves

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The present invention relates to a 2-bed type filter which enables automatic back washing according to the change of flow rate. More specifically, the 2-bed type filter improves reliability to contamination measurement value by automatic washing when foreign materials clog a filtering net at a pretreatment step for measuring contaminants contained in domestic sewage or river.

Description

2-filter self-cleaning system for measuring contaminated substance

The present invention relates to a 2-bed type filtration filter capable of automatic backwashing according to a flow rate change, and more particularly, the filtration network is blocked by a foreign matter in a pretreatment filtration step for measuring pollutants contained in domestic sewage or rivers. In addition, the present invention has been invented to improve the reliability of contamination measurements by automatically cleaning them.

In general, domestic sewage and rivers contain various harmful substances as a result of flowing various wastes indiscriminately with industrial development.

Therefore, in order to grasp changes in water quality management and pollution level, a pollutant measuring device is installed in a river to measure the degree of pollution and change.

The pollutant detector is a device that oxidizes organic substances stably by using a low temperature combustion reaction tube and a catalyst, and removes the contamination of inorganic salts that may occur at high temperature, and then accurately measures the total organic carbon content among the pollutants in the detector. .

However, in the conventional pollutant measuring device, various suspended solids and foreign substances are mixed in an irregular size in a sample that is input for measurement, that is, in a pollutant in a river.

Therefore, when the amount of solid suspended solids in the sample is added to the measuring device to measure the degree of contamination, such as total organic carbon (TOC), there was a problem that the reliability of the measured value is lowered.

In order to solve this problem, in Korean Patent No. 10-0720689, the solid suspended solids in the sample introduced for measurement are mixed in a homogenized state in the sample, and then filtered to a certain size by a filtering network to measure the contamination. A pretreatment filtration device has been proposed that allows samples to be supplied.

The degree of contamination of the sample was initially measured more accurately by the apparatus of the above-described Korean Patent No. 10-0720689.

However, because the sample contains a large amount of contaminants in irregular sizes, it is common to be clogged by the filtering network.

Therefore, in the early stages, the reliability of the measurement diagram was high, but if the filter network was clogged due to repeated use, there was a disadvantage in that the measured value change in the continuously changing sample could not be accurately measured.

In order to solve this problem, an object of the present invention is to provide a filter cleaning device for measuring pollutants that can measure the degree of contamination of the sample more accurately by detecting the clogging of the filter network and automatically cleaning.

It is another object of the present invention to provide a filter cleaning device for measuring pollutants, which allows the administrator to have more convenience because the three operations can be automatically performed without a separate worker.

Still another object of the present invention is to provide a filter cleaning device for measuring pollutants, by which automatic cleaning is performed without stopping the pollutant measuring system, thereby improving the efficiency and reliability of the product.

In order to achieve this object, the present invention, the hollow body is divided into the upper body 11 and the lower body 12 in the shape of the body, the lower body 12, the sample introduced through the sample inlet 13 to the filtering network A first filtration body (10) for filtering the sample by (19) and then discharging it through the sample outlet (14) of the upper body (11),

After being divided into the upper body 21 and the lower body 22 in the shape of a hollow container, the sample introduced through the sample inlet 23 into the lower body 22 filters the sample by the filtering network 29. A second filtration body 20 for discharging through the sample outlet 24 of the upper body 21,

Polluted water supply pipe 30 for supplying the contaminated water introduced for the measurement of contamination degree through the branch pipes 31 and 32, respectively, to the first filtration body 10 and the second filtration body 20,

The contamination meter 1 and the water supply pipe with the two water supply pipes 41 and 42 connected to the sample outlets 14 and 24 of the first filtration body 10 and the second filtration body 20, respectively. Fresh water supply pipe 40 for supplying a sample by connecting the (41) (42),

Three-way solenoid valves 51 and 52 installed at the branch pipes 31 and 32 to control whether or not the sample is supplied;

The outlet is opened in accordance with the opening and closing adjustment of the three-way solenoid valves 51 and 52 to remove foreign substances caught by the filtering nets 19 and 29 of the first filtering body 10 and the second filtering body 20. A drain hose 60 connected to discharge,

Installed in the branch pipes 31 and 32 or the sample water supply pipes 41 and 42, flow rate detection sensors 71 and 72 for measuring the flow rate of the liquid moved into the pipe;

By comparing the flow rate detected by each of the flow rate sensor (71) (72), respectively, one of the two three-way solenoid valves (51) (52) is opened and closed and the other is closed to reverse the sample water supply direction It is achieved by the control circuit 80 is configured to switch to the filter network 19, 29, the foreign matter caught in the filter hose 19, 29 is discharged through the drain hose (60).

According to the configuration of the present invention, when the sample flows into the first filtration body 10 and the second filtration body 20, respectively, the branch flows in the pipe when the difference in flow rate is more than the set value is detected by the three-way solenoid valve (51) When the passages of the (52) are switched to each other, a large amount of foreign substances are caught, and the foreign substance caught on the filter nets (19) and (29) is reversed by switching the sample water supply direction to the filtration body at the position where the flow rate in the tube is increased. To be automatically discharged.

Therefore, by automatically washing the filter network, it is possible to measure the contamination level of the sample more accurately.

In addition, since the three operations can be automatically performed semi-permanently without a separate power or operator, to make the manager or operator more convenient, the reliability of the product is improved.

1 is an overall device diagram of the present invention.
2 is an overall device diagram showing another embodiment of the present invention.

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

1 is a device diagram showing an embodiment of a pretreatment filtration device for measuring pollutants according to the present invention.

2 is a device diagram showing another embodiment.

That is, as shown in the drawing, the first filtration body 10 and the second filtration body 20 having the sample filtration function have the same structure and are piped in parallel immediately before the sample inlet of the contaminant measuring instrument, respectively, in a solid state in the sample to be detected. This allows the suspended solids to be detected in the detector in a fluid state with an evenly distributed concentration.

The first filtration body 10 and the second filtration body 20 are usually divided into upper body 11, 21 and lower body 12, 22 in a hollow cylindrical enclosure shape, contained in the sample. Filtering nets 19 and 29 are provided for filtering foreign matter or solid suspended matter.

The filter nets 19 and 29 are positioned inside the upper bodies 11 and 21 and the lower bodies 12 and 22, and after the O-rings are inserted to maintain the airtightness, they are screwed into the sealed state. The first filtration body 10 and the second filtration body 20 are assembled.

The sample inlets 13 and 23 are the sample of the fluid state to measure the contaminants through the pump in the river, etc. are introduced through the branch pipes 31 and 32, the first filtration body 10 and the second filtration After filling the internal space of the body 20, the process of moving to the contamination meter 1 through the sample outlets 14 and 24 is repeated repeatedly.

The filter nets 19 and 29 have a mesh structure with a size of about 50 mesh.

In general, although not shown in the contaminant measuring device, a pump having an appropriate pumping capacity is built in, so that the liquid sample filled inside the first filtration body 10 and the second filtration body 20 when the pollutant measuring device 1 operates. It is designed to inhale.

At this time, the foreign matter or a large solid suspended solids having a predetermined size or more through the filtering network (19, 29) is filtered, the new sample mixed uniformly in size or distribution of the solid suspended solids in the sample sample outlet 14 ( 24 is supplied to the pollution meter (1) through the water supply pipe (41) (42), and the fresh water supply pipe (40).

The pollutant detector is already known and is equipped with a low temperature combustion reaction tube and a high sensitivity detector, and displays the measured value numerically or in letters.

On the other hand, the reliability of the measured value is lost when the filter nets 19 and 29 are blocked by solid suspended matter.

Therefore, in the present invention, it is characterized in that the filter network (19, 29) is clogged to provide a cleaning device for automatic cleaning by detecting that the performance is reduced.

That is, the first filtration body 10 and the second filtration body 20 are disposed between the contaminated water supply pipe 30 and the fresh water supply pipe 40, and the branch pipes 31, 32, and the water supply pipe 41, 42 are disposed. ) Pipes to form a sample flow path in parallel.

Therefore, when the sample is supplied through the contaminated water supply pipe 30, the sample is branched in the same amount to the first filtration body 10 and the second filtration body 20 through two branch pipes 31 and 32, respectively. After being filtered by the filter nets 19 and 29 in a state, it is moved to the fresh water supply pipe 40 connected to the outlet of the water supply pipes 41 and 42.

The fresh water supply pipe 40 supplies the fresh water samples filtered by the two first filtration bodies 10 and the second filtration bodies 20 to the pollution measuring device 1.

When the filtration process is performed for a predetermined time, two of the filtering nets 19 and 29 located inside the first filtration body 10 and the second filtration body 20 are not blocked at the same time at the same time, and either one is fine. Even if the degree of clogging can be different.

The degree of clogging is represented by the difference in flow rate of the fluid flowing inside the branch pipes 31 and 32 or the water supply pipes 41 and 42.

Meanwhile, the branch pipes 31 and 32 are provided with three-way solenoid valves 51 and 52 that control whether or not the sample is supplied.

The three-way solenoid valves 51 and 52 are provided in three directions for supplying a sample to be moved to the first filtration body 10 and the second filtration body 20, or for blocking or draining them to the drain hose 60. The opening and closing direction is switched by the electronic signal.

When the outlet hose 60 is opened in the drain direction in accordance with the opening and closing adjustment of the three-way solenoid valves 51 and 52, the drain hose 60 may filter the first and second filtering bodies 10 and 20. It is connected to the three-way solenoid valve (51) (52) so that the foreign matter caught by the (29) is moved and discharged to the outside.

Therefore, when the flow rate sensor 71 or 72 installed in the branch pipes 31 and 32 or the sample water supply pipes 41 and 42 detects a difference in flow rates in both pipes, a flow rate difference greater than or equal to a set value is generated. 80 actuates the three-way solenoid valves 51 and 52.

That is, the pipes connected to the less clogged side of the two three-way solenoid valves 51 and 52 are opened and closed, and the other pipes are sealed, and the outlet of the sealed pipe is connected to the drain hose 60. Will be connected.

For example, assuming that the filtering net 29 located inside the second filtering body 20 on the right side of the filtering nets 19 and 29 is blocked as follows.

When the filter network 29 of the right second filter body 20 in the drawing is blocked more than the left filter network 19, the flow rate flowing through the branch pipe 32 is reduced, the flow rate sensor 31, 32 Each of these is sensed, and the three-way solenoid valve 52 on the right side is blocked by the control circuit 80 to block the supply of the sample through the branch pipe 32, and the direction of the drain hose 60 is switched to open. .

Therefore, the sample is not supplied to the right second filtration body 20, so that the sample is supplied only to the piping circuit of the left first filtration body 10, wherein the outlet sides of the two water supply pipes 41 and 42 are the fresh water supply pipe 40. Are connected to the outlet of the left water supply pipe 41, and some of them are supplied to the contamination measuring device 1 while being moved to a predetermined discharge flow rate. 2 is moved into the interior of the filtration body (20).

At this time, in the case of the second filtration body 20, since the water supply direction flows from the upper portion toward the branch pipe 32 at the lower side through the water supply pipe 42, foreign substances, etc. blocked at the lower position of the filtering network 29 are forced off. It will break through the blockage.

In addition, when the flow rate of the sample flowing through the right second filtration body 20 is normal, since the flow rate of the left first filtration body 10 is relatively increased, the water supply direction for the above-described washing and The operation of the three-way solenoid valves 51 and 52 is reversed.

By repeating this method, the clogged filter nets 19 and 29 are automatically washed, and the foreign matter caught in the filter nets 19 and 29 is reversed by changing the water supply direction of the sample to the outside through the drain hose 60. It is discharged.

The three-way solenoid valves 51 and 52 are attached to a motor to control the rotation direction, the rotation angle, and the like by the signals of the control circuit 80.

In addition, the flow rate detection sensors 71 and 72 may be installed in the water supply pipes 41 and 42 as shown in FIG. 2 as well as the branch pipes 31 and 32.

When the flow rate detection sensors 71 and 72 are installed in the water supply pipes 41 and 42, the flow rate of the sample flowing through the inside of the water supply pipes 41 and 42, which is further blocked, of the two filter nets 19 and 29. This is lowered, it is the same that the three-way solenoid valve 51, 52 is controlled by the operation of the control circuit 80 by detecting and comparing this flow rate difference.

Here, the case of selecting the flow rate detection sensor for detecting the flow rate in place of the flow rate detection sensors 71 and 72 will also fall within the possible scope of the present invention.

The present invention of this structure is suitable for the measurement of pollutants in a place with a relatively large amount of solid suspended solids.

According to the filtration device of the present invention, when the filter network is clogged, it is possible to measure the contamination level of the sample more accurately by detecting and automatically washing it.

In addition, it is convenient for the manager or worker, and can be controlled semi-permanently.

10-First filtration body 11-Upper body
12-Sample Outlet 14-Sample Outlet
20-second filtration body 21-upper body
22-Sample inlet 24-Sample outlet
30-contaminated water supply pipe 31, 32-branch pipe
40-Fresh Water Supply Pipe 41, 42-Water Supply Pipe
51, 52-3 way solenoid valve 60-drain hose
71, 72-Flow sensor 80-Control circuit

Claims (1)

In the state of being divided into the upper body 11 and the lower body 12 in the shape of a hollow enclosure, the sample introduced through the sample inlet 13 in the lower body 12 is filtered by the filter network 19 The first filtration body 10 to be discharged through the sample outlet 14 of the upper body 11,
After being divided into the upper body 21 and the lower body 22 in the shape of a hollow container, the sample introduced through the sample inlet 23 into the lower body 22 filters the sample by the filtering network 29. A second filtration body 20 for discharging through the sample outlet 24 of the upper body 21,
Polluted water supply pipe 30 for supplying the contaminated water introduced for the measurement of contamination degree through the branch pipes 31 and 32, respectively, to the first filtration body 10 and the second filtration body 20,
The contamination meter 1 and the water supply pipe with the two water supply pipes 41 and 42 connected to the sample outlets 14 and 24 of the first filtration body 10 and the second filtration body 20, respectively. Fresh water supply pipe 40 for supplying a sample by connecting the (41) (42),
Three-way solenoid valves 51 and 52 installed at the branch pipes 31 and 32 to control whether or not the sample is supplied;
The outlet is opened in accordance with the opening and closing adjustment of the three-way solenoid valves 51 and 52 to remove foreign substances caught by the filtering nets 19 and 29 of the first filtering body 10 and the second filtering body 20. A drain hose 60 connected to discharge,
Installed in the branch pipes 31 and 32 or the sample water supply pipes 41 and 42, flow rate detection sensors 71 and 72 for measuring the flow rate of the liquid moved into the pipe;
By comparing the flow rate difference detected by each of the flow rate sensor (71) (72), respectively, one of the two three-way solenoid valves (51) (52) is opened and closed and the other is sealed to change the sample water supply direction. 2-bed capable of automatic backwashing according to the flow rate change, characterized in that the control circuit 80 is configured to switch to the reverse to discharge the foreign matter caught in the filter net (19, 29) through the drain hose (60) type Filtration filter.
KR1020120051629A 2012-05-15 2012-05-15 A filter self-cleaning system for measuring contaminated substance KR20130127831A (en)

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Application Number Priority Date Filing Date Title
KR1020120051629A KR20130127831A (en) 2012-05-15 2012-05-15 A filter self-cleaning system for measuring contaminated substance

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107389421A (en) * 2017-08-11 2017-11-24 苏州卫水环保科技有限公司 One kind combination pretreatment unit
KR20190073662A (en) * 2017-12-19 2019-06-27 농업회사법인 만나씨이에이 주식회사 Automatic Backwash Filter System
EP3743188A4 (en) * 2018-01-25 2021-08-25 Amiad Water Systems Ltd. Filtration system
KR102566337B1 (en) * 2023-05-25 2023-08-14 큰나라찬사회적협동조합 Automatic automatic back-washing fine filtering apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107389421A (en) * 2017-08-11 2017-11-24 苏州卫水环保科技有限公司 One kind combination pretreatment unit
KR20190073662A (en) * 2017-12-19 2019-06-27 농업회사법인 만나씨이에이 주식회사 Automatic Backwash Filter System
EP3743188A4 (en) * 2018-01-25 2021-08-25 Amiad Water Systems Ltd. Filtration system
EP4088804A1 (en) * 2018-01-25 2022-11-16 Amiad Water Systems Ltd. Filtration system
KR102566337B1 (en) * 2023-05-25 2023-08-14 큰나라찬사회적협동조합 Automatic automatic back-washing fine filtering apparatus

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