CN107642159A - A kind of filter screen with fault detection system, sewage treatment well and detecting method - Google Patents
A kind of filter screen with fault detection system, sewage treatment well and detecting method Download PDFInfo
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- CN107642159A CN107642159A CN201711026021.0A CN201711026021A CN107642159A CN 107642159 A CN107642159 A CN 107642159A CN 201711026021 A CN201711026021 A CN 201711026021A CN 107642159 A CN107642159 A CN 107642159A
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- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000010865 sewage Substances 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 184
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 144
- 238000012544 monitoring process Methods 0.000 claims abstract description 38
- 238000010276 construction Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 240000006909 Tilia x europaea Species 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The invention discloses a kind of filter screen with fault detection system, and it includes filter screen body, water inlet liquid level sensor, water outlet liquid level sensor, control device and warning device；Water inlet liquid level sensor and water outlet liquid level sensor are respectively arranged at filter screen body rear and front end, and water inlet liquid level sensor is used for the liquid level for monitoring filter screen body front end, and water outlet liquid level sensor is used for the liquid level for monitoring filter screen body rear end；Control device is connected with water inlet liquid level sensor and water outlet liquid level sensor, and whether the liquid level difference between the liquid level that control device is monitored for the liquid level that is monitored by liquid level sensor of intaking and water outlet liquid level sensor more than default liquid level difference judges that filter screen body whether there is failure；Warning device is connected with control device.The invention also discloses a kind of sewage treatment well and detecting method.The present invention is simple in construction, can detect whether filter screen breaks down.
Description
Technical field
The present invention relates to filter screen field of fault detection, and in particular to a kind of filter screen with fault detection system, at sewage
Manage well and detecting method.
Background technology
Sewage treatment well is generally referred to as shunting well, abandoned stream well or Vatch basin etc., in the well body of existing sewage treatment well
Filter screen is typically provided with, to entering floating object, suspension or precipitum in the sewage in well body intercepted by filter screen
Filter, prevents well body from blocking.The filter screen that existing sewage treatment well is set does not possess to be occurred to be alarmed under stopping state in filter screen
Function, this kind of filter screen has following drawback：
(1) filter net jam phenomenon inconvenience is found, it is necessary to spend a large amount of manpower, material resources and financial resources, and maintenance cost is high.
(2) when filter net jam is serious, cleaning is difficult.
(3) it is reduced after filter net jam and intercepts filtering function, at rainy day especially heavy rain day, causes rainwater to be difficult to arrange
Go out, cause serious waterlogging.
The content of the invention
For defect present in prior art, it is an object of the invention to provide a kind of filter with fault detection system
Net, the filter structure is simple, can detect whether filter screen breaks down.
To achieve the above objectives, the present invention adopts the technical scheme that：A kind of filter screen with fault detection system, it is wrapped
Include：
Filter screen body；
Water inlet liquid level sensor, it is arranged at the filter screen body front end, and the water inlet liquid level sensor is used to monitor institute
State the liquid level of filter screen body front end；
Water outlet liquid level sensor, it is arranged at the filter screen body rear end, and the water outlet liquid level sensor is used to monitor institute
State the liquid level of filter screen body rear end；
Control device, it is connected with the water inlet liquid level sensor and the water outlet liquid level sensor, the control dress
Put between the liquid level for being monitored by the liquid level that is monitored of water inlet liquid level sensor and the water outlet liquid level sensor
Liquid level difference whether more than default liquid level difference judge that the filter screen body whether there is failure；
Warning device, it is connected with the control device, when failure be present in the filter screen, the warning device alarm.
Further, the water inlet level monitoring scope of the water inlet liquid level sensor is preset with, the control device is used for
Whether the liquid level monitored by the water inlet liquid level sensor, which exceedes default water inlet level monitoring scope, judges the water inlet
Liquid level sensor whether there is failure.
Further, the water outlet level monitoring scope of the water outlet liquid level sensor is preset with, the control device is used for
Whether the liquid level monitored by the water outlet liquid level sensor more than default water outlet level monitoring scope judges the water outlet
Liquid level sensor whether there is failure.
Further, the warning device is one in indicator lamp, electronic curtain, voice guard and vibration alarm
Kind.
Further, the control device is PLC.
Present invention also offers a kind of sewage treatment well, and it includes：
Well body, water inlet and delivery port are offered in the well body side wall；
Just like upper any described filter screen with fault detection system；The filter screen body be placed in the well body and
Between the water inlet and the delivery port；The water inlet liquid level sensor is arranged on the filter screen body and the water inlet
Between mouthful, the water outlet liquid level sensor is arranged between the filter screen body and the delivery port.
Present invention also offers a kind of detecting method of the filter screen as described above with fault detection system, it is included such as
Lower step：
A1：The water inlet liquid level sensor monitors the liquid level of the filter screen body front end；The water outlet liquid level sensor prison
The liquid level of the filter screen body rear end is surveyed, into A2；
A2：The control device judges the liquid level that is monitored of water inlet liquid level sensor and the water outlet liquid level sensor
Whether the liquid level difference between the liquid level monitored is more than default liquid level difference, if it is not, then the filter screen is normal, if so, then
There is failure in the filter screen, into A3.
A3：When failure be present in the filter screen, the warning device alarm.
Further, it is preset with the control device into water level monitoring scope and water outlet level monitoring scope；
The detecting method also comprises the following steps：
A0：The control device judges the liquid level that is monitored of water inlet liquid level sensor and the water outlet liquid level sensor
The liquid level monitored whether respectively it is default water inlet level monitoring in the range of and default water outlet level monitoring in the range of, if
It is no, then it can determine whether out the water inlet liquid level sensor and the water outlet liquid level sensor be any or whole failures, into A3；If
It is, then into A1.
Compared with prior art, the advantage of the invention is that：
(1) present invention is simple in construction, can send alarm signal in time in filter net jam, allow maintenance personal to tie up in time
Repair；Especially in the case where stopping state occurs for filter screen, can timely it be cleared up, cleaning work is timely and workload is small, saves big
Manpower, material resources and financial resources are measured, are easy to safeguard.
(2) for filter screen provided by the invention when breaking down, malfunction elimination is simple and convenient.
Brief description of the drawings
Fig. 1 is the filter structure schematic diagram provided in an embodiment of the present invention with fault detection system；
Fig. 2 is the detecting method flow chart of the filter screen provided in an embodiment of the present invention with fault detection system.
In figure, 1, water outlet liquid level sensor；2nd, filter screen body；3rd, water inlet liquid level sensor.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Shown in Figure 1, the embodiment of the present invention provides a kind of filter screen with fault detection system, and it includes filter screen body
2nd, water inlet liquid level sensor 3, water outlet liquid level sensor 1, control device and warning device.
Wherein, water inlet liquid level sensor 3 is arranged at the front end of filter screen body 2, and water inlet liquid level sensor 3 is used to monitor filter screen sheet
The liquid level of the front end of body 2；
Water outlet liquid level sensor 1 is arranged at the rear end of filter screen body 2, and water outlet liquid level sensor 1 is used for after monitoring filter screen body 2
The liquid level at end；
Control device is connected with water inlet liquid level sensor 3 and water outlet liquid level sensor 1, and control device is used to pass through water inlet
It is pre- whether the liquid level difference between the liquid level that the liquid level and water outlet liquid level sensor 1 that liquid level sensor 3 is monitored are monitored is more than
If liquid level difference judge that filter screen body 2 whether there is failure；Control device is PLC.
Warning device is connected with control device, when failure be present in filter screen, warning device alarm.In the present invention, alarm dress
The one kind being set in indicator lamp, electronic curtain, voice guard and vibration alarm.
In the present invention, the water inlet level monitoring scope into water liquid level sensor 3 is preset with, that is, is preset with into water level monitoring
Limes superiors H5With water inlet level monitoring limit inferior H6, under normal circumstances, the liquid level H that water inlet liquid level sensor 3 is monitored2Positioned at H6
And H5Between, whether the liquid level that control device is used to be monitored by liquid level sensor 3 of intaking exceedes default water inlet liquid level prison
Survey scope and judge that water inlet liquid level sensor 3 whether there is failure..
The water outlet level monitoring scope of water outlet liquid level sensor 1 is preset with, that is, is preset with water outlet level monitoring limes superiors H3
With water outlet level monitoring limit inferior H4, under normal circumstances, the liquid level H that water outlet liquid level sensor 1 is monitored1Positioned at H4And H3Between,
Whether the liquid level that control device is used to be monitored by water outlet liquid level sensor 1, which exceedes default water outlet level monitoring scope, judges
Water outlet liquid level sensor 1 whether there is failure.
Liquid level of intaking and water outlet liquid level have the liquid level difference of a reasonable benefit/risk, and the liquid level difference is default liquid level difference
Value N, under normal circumstances, the actual liquid level difference of water inlet liquid level and water outlet liquid level are not more than the default liquid level difference；Control dress
Put the liquid level for judging the liquid level that is monitored of water inlet liquid level sensor 3 between liquid level that water outlet liquid level sensor 1 is monitored
Whether difference is more than the default liquid level difference.
The present invention is simple in construction, can be sent in time when sensor broken string or short circuit and filter net jam occur for filter screen
Alarm signal, allows maintenance personal's on-call maintenance；It especially in the case where stopping state occurs for filter screen, can timely be cleared up, be cleared up
Work is in time and workload is small, saves a large amount of manpower, material resources and financial resources, is easy to safeguard.
For filter screen provided by the invention when breaking down, malfunction elimination is simple and convenient.
Present invention also offers a kind of sewage treatment well, and it includes well body and the above-mentioned filter screen with fault detection system；
Water inlet and delivery port are offered in well body side wall；Filter screen body 2 is placed in well body and between water inlet and delivery port；
Water inlet liquid level sensor 3 is arranged between filter screen body 2 and water inlet, and water outlet liquid level sensor 1 is arranged on filter screen body 2 with going out
Between the mouth of a river.
Shown in Figure 2, present invention also offers a kind of detecting method of the above-mentioned filter screen with fault detection system, control
It is preset with device processed into water level monitoring scope and water outlet level monitoring scope；It comprises the following steps：
A0：The liquid that the liquid level and water outlet liquid level sensor 1 that control device judgement water inlet liquid level sensor 3 is monitored are monitored
Whether position is respectively in the range of default water inlet level monitoring and in the range of default water outlet level monitoring, if it is not, then can determine whether
It has into water liquid level sensor 3 and water outlet liquid level sensor 1 be any or whole failures, into A3；If so, then enter A1.
A1：Liquid level sensor 3 of intaking monitors the liquid level of the front end of filter screen body 2；Water outlet liquid level sensor 1 monitors filter screen body
The liquid level of 2 rear ends, into A2；
A2：Control device judges that the liquid level that water inlet liquid level sensor 3 is monitored is monitored with the water outlet liquid level sensor 1
Liquid level between liquid level difference whether be more than default liquid level difference, if it is not, then filter screen is normal, if so, then filter screen exist therefore
Barrier, into A3.
A3：When failure be present in filter screen, warning device alarm.
Typically, filter screen, which has failure, includes that water inlet liquid level sensor 3 breaks or short circuit, water outlet liquid level sensor 1 are disconnected
Line or short circuit and filter screen block, specifically,
Control device judges the liquid level H that water inlet liquid level sensor 3 is monitored2The liquid monitored with water outlet liquid level sensor 1
Position H1Whether respectively in the range of default water inlet level monitoring and in the range of default water outlet level monitoring, if H6≤H2≤H5
And H4≤H1≤H3, then water inlet liquid level sensor 3 and water outlet liquid level sensor 1 are normal, if H2＞ H5Or H2＜ H6, then aqueous is entered
Level sensor 3 breaks or short circuit, if H1＞ H3Or H1＜ H4, then water outlet liquid level sensor 1 break or short circuit.
In A0, liquid level sensor carry out self-test when, though water inlet liquid level sensor 3 and water outlet liquid level sensor 1 which
Individual first self-test, as long as the liquid level of the Sensor monitoring of first self-test does not alert in default monitoring range, i.e. warning device, such as
The sensor of first self-test of fruit is normal after testing, then self-test is carried out to second sensor, if the sensing of second self-test
The liquid level of device monitoring does not alert in default monitoring range, i.e. warning device, if normally, into A2.
When the liquid level that is monitored of water inlet liquid level sensor 3 is in the range of default water inlet level monitoring, and water outlet liquid level passes
When the liquid level that sensor 1 is monitored is in the range of default water outlet level monitoring, i.e. H6≤H2≤H5And H4≤H1≤H3, control device
Determine whether the liquid level between the liquid level that is monitored into water liquid level sensor 3 and the liquid level that water outlet liquid level sensor 1 is monitored
Whether difference is more than default liquid level difference, if H2-H1＞ N, then filter screen blocks, if H2-H1≤ N, then filter screen is normal.
When any of the above-described failure occurs, warning device can send alarm immediately, inform that staff enters to said circumstances
Row excludes, you can finds specific failure cause.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
On the premise of the principle of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (8)
1. a kind of filter screen with fault detection system, it is characterised in that it includes：
Filter screen body (2)；
Water inlet liquid level sensor (3), it is arranged at filter screen body (2) front end, and the water inlet liquid level sensor (3) is used to supervise
Survey the liquid level of filter screen body (2) front end；
Water outlet liquid level sensor (1), it is arranged at filter screen body (2) rear end, and the water outlet liquid level sensor (1) is used to supervise
Survey the liquid level of filter screen body (2) rear end；
Control device, it is connected with the water inlet liquid level sensor (3) and the water outlet liquid level sensor (1), the control
Device is used for what is monitored by the liquid level that the water inlet liquid level sensor (3) is monitored with the water outlet liquid level sensor (1)
Whether liquid level difference between liquid level more than default liquid level difference judges that the filter screen body (2) whether there is failure；
Warning device, it is connected with the control device, when failure be present in the filter screen, the warning device alarm.
2. there is the filter screen of fault detection system as claimed in claim 1, it is characterised in that：The water inlet liquid level is preset with to pass
The water inlet level monitoring scope of sensor (3), the control device are used for the liquid monitored by the water inlet liquid level sensor (3)
Whether position, which exceedes default water inlet level monitoring scope, judges that the water inlet liquid level sensor (3) whether there is failure.
3. there is the filter screen of fault detection system as claimed in claim 1, it is characterised in that：The water outlet liquid level is preset with to pass
The water outlet level monitoring scope of sensor (1), the control device are used for the liquid monitored by the water outlet liquid level sensor (1)
Whether position more than default water outlet level monitoring scope judges that the water outlet liquid level sensor (1) whether there is failure.
4. there is the filter screen of fault detection system as claimed in claim 1, it is characterised in that：The warning device is instruction
One kind in lamp, electronic curtain, voice guard and vibration alarm.
5. there is the filter screen of fault detection system as claimed in claim 1, it is characterised in that：The control device is PLC.
6. a kind of sewage treatment well, it is characterised in that it includes：
Well body, water inlet and delivery port are offered in the well body side wall；
Just like any described filter screens with fault detection system of claim 1-5；The filter screen body (2) is placed in described
In well body and between the water inlet and the delivery port；The water inlet liquid level sensor (3) is arranged on the filter screen sheet
Between body (2) and the water inlet, the water outlet liquid level sensor (1) is arranged on the filter screen body (2) and the delivery port
Between.
7. a kind of detecting method of the filter screen as claimed in claim 1 with fault detection system, it is characterised in that it includes
Following steps：
A1：The water inlet liquid level sensor (3) monitors the liquid level of filter screen body (2) front end；The water outlet liquid level sensor
(1) liquid level of filter screen body (2) rear end is monitored, into A2；
A2：The control device judges water inlet liquid level sensor (3) liquid level that is monitored and the water outlet liquid level sensor
(1) whether the liquid level difference between the liquid level monitored is more than default liquid level difference, if it is not, then the filter screen is normal, if so,
Then there is failure in the filter screen, into A3.
A3：When failure be present in the filter screen, the warning device alarm.
8. detecting method as claimed in claim 7, it is characterised in that：
It is preset with the control device into water level monitoring scope and water outlet level monitoring scope；
The detecting method also comprises the following steps：
A0：The control device judges water inlet liquid level sensor (3) liquid level that is monitored and the water outlet liquid level sensor
(1) liquid level monitored whether respectively it is default water inlet level monitoring in the range of and default water outlet level monitoring in the range of,
If it is not, then can determine whether out the water inlet liquid level sensor (3) and the water outlet liquid level sensor (1) is any or whole failures, enter
Enter A3；If so, then enter A1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711026021.0A CN107642159A (en) | 2017-10-27 | 2017-10-27 | A kind of filter screen with fault detection system, sewage treatment well and detecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711026021.0A CN107642159A (en) | 2017-10-27 | 2017-10-27 | A kind of filter screen with fault detection system, sewage treatment well and detecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107642159A true CN107642159A (en) | 2018-01-30 |
Family
ID=61123377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711026021.0A Pending CN107642159A (en) | 2017-10-27 | 2017-10-27 | A kind of filter screen with fault detection system, sewage treatment well and detecting method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107642159A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029305A (en) * | 2021-03-25 | 2021-06-25 | 中国长江电力股份有限公司 | Self-adaptive fault diagnosis and correction system and method for hydropower station water level measurement |
| CN114484252A (en) * | 2021-12-28 | 2022-05-13 | 华能上海燃机发电有限责任公司 | Oil return filter screen state detection equipment for lubricating oil system of single-shaft combined cycle unit |
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2017
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| US20030136173A1 (en) * | 2002-01-23 | 2003-07-24 | Siemens Vdo Automotive Corporation | System and method for detecting faulty fuel tank level sensor |
| FR2962919A1 (en) * | 2010-07-26 | 2012-01-27 | Serge Gilbert Andrieu | Method for starting cleaning of filter with large volume of e.g. waste water to avoid clogging of filter in pumping station, involves emitting warning signal warning detection of fault cleaning of filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114484252A (en) * | 2021-12-28 | 2022-05-13 | 华能上海燃机发电有限责任公司 | Oil return filter screen state detection equipment for lubricating oil system of single-shaft combined cycle unit |
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| PB01 | Publication | ||
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Application publication date: 20180130 |