CN107605015B - Diversion well system for preventing sewage from flowing backwards and backflow preventing method - Google Patents
Diversion well system for preventing sewage from flowing backwards and backflow preventing method Download PDFInfo
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- CN107605015B CN107605015B CN201711019630.3A CN201711019630A CN107605015B CN 107605015 B CN107605015 B CN 107605015B CN 201711019630 A CN201711019630 A CN 201711019630A CN 107605015 B CN107605015 B CN 107605015B
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- 239000010865 sewage Substances 0.000 title claims abstract description 122
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000003405 preventing effect Effects 0.000 title claims description 18
- 239000007788 liquid Substances 0.000 claims abstract description 93
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000012876 topography Methods 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 5
- 239000013307 optical fiber Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 2
- 101100520231 Caenorhabditis elegans plc-3 gene Proteins 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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Abstract
The utility model provides a prevent that sewage from flowing backward reposition of redundant personnel well system and prevent backward flowing method, relate to the reposition of redundant personnel well field, the lateral wall of reposition of redundant personnel well is equipped with water inlet, delivery port and sewage mouth, the water inlet communicates domestic sewage pipeline, the sewage mouth is connected and is cut dirty pipe, the delivery port is connected and is regulated the pond pipeline, be equipped with the weir gate that is responsible for delivery port break-make and is responsible for sewage mouth break-make in the reposition of redundant personnel well, and the in-well level gauge of the in-well liquid level of real-time measurement, be equipped with the sewage level gauge of real-time measurement liquid level in the section dirty pipe, the weir gate, in-well level gauge and sewage level gauge all are connected and are controlled by the PLC; when h0 is more than or equal to h1, the gate is in an open state; when h0 is less than or equal to h2, the gate is in a closed state; wherein h0 is the liquid level difference of the liquid level of the sewage interception pipe subtracted from the liquid level in the diversion well, h1 is the preset sewage drainage liquid level difference, h2 is the preset sewage interception liquid level difference, and h1> h2. The invention prevents sewage in the sewage interception pipe from flowing back into the diversion well and prevents the sewage from flowing back to pollute the urban environment.
Description
Technical Field
The invention relates to the field of diversion wells, in particular to a diversion well system for preventing sewage from flowing backwards and a backflow preventing method.
Background
In recent years, the construction speed of urban sewage treatment plants and matched pipe networks in China is obviously accelerated, and on the basis of the national conditions and urban drainage current situation in China, most urban sewage interception pipe networks are constructed by using a diversion well and various weir gates.
In the currently known drainage system, a common diversion well side wall is provided with a sewage port connected with a sewage interception pipe, sewage in the diversion well flows into a sewage well through the sewage interception pipe, and is treated in a sewage treatment plant of a sewage well runner. However, sewage treatment plants have limited treatment and acceptance of sewage and the size of the bilge well is limited. When the sewage reaches the upper limit of a sewage treatment plant or the sewage quantity exceeds the standard, the sewage is easy to flow back to the sewage well, so that the sewage in the sewage well is leveled in the sewage highly intercepting pipe; more serious, sewage floods the sewage interception pipe, so that sewage in the sewage well flows back to the diversion well, and possibly flows back from the water inlet pipe in the diversion well, and the water inlet pipe is connected with a district, a street and the like, thereby causing urban environmental pollution.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a diversion well system and a method for preventing sewage from flowing backwards, so that sewage in a sewage interception pipe is prevented from flowing backwards into a diversion well, and the sewage is prevented from flowing backwards to pollute urban environment.
In order to achieve the purpose, the invention adopts a diversion well system for preventing sewage from flowing backwards, which comprises a diversion well and a PLC (programmable logic controller), wherein the side wall of the diversion well is provided with a water inlet, a water outlet and a sewage port, the water inlet is communicated with a domestic sewage pipeline, the sewage port is connected with a sewage interception pipe, the water outlet is connected with a regulating reservoir pipeline, a weir gate responsible for switching on and off of the water outlet and a gate responsible for switching on and off of the sewage port are arranged in the diversion well, an in-well liquid level meter for measuring the in-well liquid level in real time is arranged in the diversion well, a sewage liquid level meter for measuring the in-well liquid level in real time is arranged in the sewage interception pipe, and the weir gate, the in-well liquid level meter and the sewage liquid level meter are all connected and controlled by the PLC; when h0 is more than or equal to h1, the gate is in an open state; when h0 is less than or equal to h2, the gate is in a closed state; wherein h0 is the liquid level difference of the liquid level of the sewage interception pipe subtracted from the liquid level in the diversion well, h1 is the preset sewage drainage liquid level difference, h2 is the preset sewage interception liquid level difference, and h1> h2.
On the basis of the technical scheme, the height of the weir gate is lower than the safety warning liquid level, and the height of the safety warning liquid level is equal to the height of the lowest topography of the area governed by the shunt well pipe.
On the basis of the technical scheme, the weir gate is a downward opening weir gate, and the height of the weir gate is 50mm lower than the safety warning liquid level.
On the basis of the technical scheme, when h2 is less than h0 is less than h1, the gate keeps the existing state unchanged.
On the basis of the technical scheme, the in-well liquid level meter and the sewage liquid level meter are an optical fiber liquid level meter, a pressure type liquid level meter or an acoustic wave type liquid level meter.
On the basis of the technical scheme, the gate is connected with a first driving device, the weir gate is connected with a second driving device, and the first driving device and the second driving device are both connected with the PLC.
The invention also provides a backflow prevention method of the diversion well system, which comprises the following steps: a sewage level difference h1 and a sewage interception level difference h2 are set in the PLC in advance; the method comprises the steps that an in-well liquid level meter measures the liquid level in a diversion well in real time, a sewage liquid level meter measures the liquid level in a sewage interception pipe in real time, and a PLC (programmable logic controller) obtains the liquid level; the PLC judges the sizes among h0, h1 and h2 in real time, and opens the gate when h0 is more than or equal to h 1; when h2< h0< h1, the gate keeps the existing state unchanged; when h0 is less than or equal to h2, the PLC controller closes the gate.
On the basis of the technical scheme, the height of the weir gate is kept lower than the safety warning liquid level, and the height of the safety warning liquid level is equal to the height of the lowest topography of the area governed by the shunt well pipe.
On the basis of the technical scheme, the weir gate is a downward opening weir gate, and the height of the weir gate is 50mm lower than the safety warning liquid level.
On the basis of the technical scheme, the gate is connected with the first driving device, and the PLC controller is used for controlling the first driving device to open or close the gate.
The invention has the beneficial effects that:
1. be equipped with the gate that is responsible for the sewage mouth break-make in the reposition of redundant personnel well, still be equipped with in the reposition of redundant personnel well level gauge and sewage level gauge in the well, subtract the liquid level difference h0 that cuts dirty pipe liquid level through the liquid level in the reposition of redundant personnel well and compare with the blowdown liquid level difference h1 that sets up in advance, when h0 is greater than or equal to h1, indicate that reposition of redundant personnel well and cut dirty pipe have produced the liquid level difference that satisfies blowdown water pressure, open the gate and let sewage in the reposition of redundant personnel well be discharged under the hydraulic effect and cut dirty pipe, through real-time supervision liquid level, guarantee going on smoothly of blowdown.
2. Through h0 and the dirt interception liquid level difference h2 that sets up in advance, when h0 is less than or equal to h2, the liquid level difference that produces between explanation shunting well and the dirt interception pipe is insufficient for discharging the sewage in the shunting well into the dirt interception pipe, closes the gate this moment, prevents to intercept the sewage backward flow in the dirt interception pipe and returns in the shunting well, prevents that sewage backward flow from polluting urban environment.
3. The height of the weir gate in the diversion well is lower than the safety warning liquid level, and the height of the safety warning liquid level is equal to the height of the lowest topography of the district under the jurisdiction of the diversion well pipe, so that when the liquid level in the diversion well is higher than the weir gate, the sewage which is not treated too much can flow to the water outlet through the upper part of the weir gate, the sewage in the diversion well is prevented from flowing back to the water inlet, and the sewage is prevented from flowing back to pollute the urban environment. The height of the weir gate is 50mm lower than the safety warning liquid level, so that the condition of sewage outflow is more accurately limited, and the backflow preventing effect is better.
Drawings
FIG. 1 is a schematic diagram of a diverter well system for preventing backflow of wastewater in accordance with an embodiment of the present invention;
FIG. 2 is a right side view of the de-slice gate of FIG. 1;
FIG. 3 is a flow chart of a method for preventing backflow in a lateral well system in accordance with an embodiment of the present invention.
Reference numerals:
a diversion well 1, a weir gate 11, a gate 12, an in-well liquid level meter 13, a sewage interception pipe 2, a sewage liquid level meter 21, a PLC controller 3, a domestic sewage pipeline 4 and a regulation pool pipeline 5.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, the diversion well system for preventing sewage from flowing backwards comprises a diversion well 1 and a PLC (programmable logic controller) 3, wherein the side wall of the diversion well is provided with a water inlet, a water outlet and a sewage port, the water inlet is communicated with a domestic sewage pipeline 4, the sewage port is connected with a sewage interception pipe 2, and the water outlet is connected with a regulation and storage tank pipeline 5. The diversion well 1 is internally provided with a weir gate 11 which is responsible for switching on and off a water outlet, and the diversion well 1 is internally provided with a gate 12 which is responsible for switching on and off a sewage outlet. An in-well liquid level meter 13 for measuring the in-well liquid level in real time is arranged in the diversion well 1, and a sewage liquid level meter 21 for measuring the in-well liquid level in real time is arranged in the sewage interception pipe 2. The weir gate 11, the gate 12, the well level gauge 13 and the sewage level gauge 21 are all connected with the PLC 3 and are controlled by the PLC 3.
Specifically, the gate 12 is connected with a first driving device, the weir gate 11 is connected with a second driving device, and the PLC controller 3 is respectively connected with the first driving device and the second driving device and is used for controlling the gate 12 and the weir gate 11 to open or close, wherein the driving devices can be electric driving devices or hydraulic driving devices. Specifically, the height of the weir gate 11 is below a safety guard level equal to the height of the lowest topography of the jurisdiction of the diverter well 1. In this embodiment the weir gate 11 is a down-opening weir gate, the height of the weir gate 11 being 50mm below the safety warning level. In the embodiment, the well level gauge 13 and the sewage level gauge 21 are both pressure type level gauges; in other embodiments, the well level gauge 13 and the sewage level gauge 21 may be different, and may also be an optical fiber level gauge or an acoustic wave level gauge.
As shown in fig. 3, the backflow prevention method of the shunt well system of the invention specifically comprises the following steps:
s1, according to actual conditions, a sewage level difference h1 and a sewage interception level difference h2 are preset in the PLC 3, and h1 is greater than h2.
S2, the in-well liquid level meter 13 measures the liquid level in the diversion well 1 in real time, the sewage liquid level meter 21 measures the liquid level in the sewage interception pipe 2 in real time, the PLC 3 obtains the liquid levels measured by the in-well liquid level meter 13 and the sewage liquid level meter 21 and converts the liquid levels into a liquid level difference h0, and the liquid level difference h0 is obtained by subtracting the liquid level in the sewage interception pipe 2 from the liquid level in the diversion well 1.
S3, the PLC 3 judges the sizes among h0, h1 and h2 in real time, and when h0 is more than or equal to h1, S4 is entered; when h2< h0< h1, entering S5; and when h0 is less than or equal to h2, entering S6.
S4, the fact that the liquid level difference exists between the diversion well 1 and the sewage interception pipe 2 is explained, the water pressure generated by the liquid level difference meets the sewage disposal condition, the PLC 3 opens the gate 12, sewage in the diversion well 1 is discharged into the sewage interception pipe 2 under the action of the water pressure, and smooth sewage disposal is guaranteed. Preferably, the PLC controller 3 ends by controlling the first driving device to open the shutter 12.
S5, the fact that the liquid level in the diversion well 1 is normal at the moment is explained, the gate 12 does not need to be opened or closed, the PLC 3 controls the gate 12 to keep the existing state unchanged, and the operation is finished.
S6, the liquid level difference exists between the diversion well 1 and the sewage interception pipe 2, but the water pressure generated by the liquid level difference does not meet the sewage drainage condition, and is insufficient for discharging sewage in the diversion well 1 into the sewage interception pipe 2, and at the moment, the PLC 3 closes the gate 12 to prevent the sewage in the sewage interception pipe 2 from flowing back into the diversion well 1. Preferably, the PLC controller 3 closes the shutter 12 by controlling the first driving device.
In the above steps, when the liquid level in the diversion well 1 is higher than the weir gate 11, too much sewage is not treated, and the sewage can flow to the water outlet through the upper part of the weir gate 11, so that the excessive sewage in the diversion well 1 is prevented from flowing back to the water inlet, and the sewage is prevented from flowing back to pollute the urban environment.
The invention is not limited to the embodiments described above, but a number of modifications and adaptations can be made by a person skilled in the art without departing from the principle of the invention, which modifications and adaptations are also considered to be within the scope of the invention. What is not described in detail in this specification is prior art known to those skilled in the art.
Claims (10)
1. The utility model provides a prevent reposition of redundant personnel well system of sewage backward flowing, includes reposition of redundant personnel well (1) and PLC controller (3), and the lateral wall of reposition of redundant personnel well (1) is equipped with water inlet, delivery port and sewage mouth, water inlet intercommunication domestic sewage pipeline (4), sewage mouth connect and intercept dirty pipe (2), delivery port connection regulation pond pipeline (5), its characterized in that:
a weir gate (11) responsible for water outlet on-off and a gate (12) responsible for sewage port on-off are arranged in the diversion well (1), an in-well liquid level meter (13) for measuring in-well liquid level in real time is arranged in the diversion well (1), a sewage liquid level meter (21) for measuring in-well liquid level in the sewage interception pipe (2) in real time is arranged in the sewage interception pipe (2), and the weir gate (11), the gate (12), the in-well liquid level meter (13) and the sewage liquid level meter (21) are all connected and controlled by the PLC (3);
when h0 is more than or equal to h1, the gate (12) is in an open state;
when h0 is less than or equal to h2, the gate (12) is in a closed state;
wherein h0 is the liquid level difference of the liquid level in the diversion well (1) minus the liquid level of the sewage interception pipe (2), h1 is the preset sewage drainage liquid level difference, h2 is the preset sewage interception liquid level difference, and h1> h2.
2. A diverter well system for preventing backflow of wastewater as defined in claim 1, wherein: the height of the weir gate (11) is lower than the safety guard level, which is equal to the height of the lowest topography of the jurisdiction of the diverter well (1).
3. A diverter well system for preventing backflow of wastewater as defined in claim 2 wherein: the weir gate (11) is a downward opening type weir gate, and the height of the weir gate (11) is 50mm lower than the safety warning liquid level.
4. A diverter well system for preventing backflow of wastewater as defined in claim 1, wherein: when h2< h0< h1, the shutter (12) remains unchanged from the existing state.
5. A diverter well system for preventing backflow of wastewater as defined in claim 1, wherein: the liquid level meter (13) and the sewage liquid level meter (21) in the well are optical fiber liquid level meters, pressure type liquid level meters or sonic type liquid level meters.
6. A diverter well system for preventing backflow of wastewater as defined in claim 1, wherein: the gate (12) is connected with a first driving device, the weir gate (11) is connected with a second driving device, and the first driving device and the second driving device are both connected with the PLC (3).
7. A method of preventing backflow based on the shunt well system of claim 1, comprising:
a sewage level difference h1 and a sewage interception level difference h2 are set in a PLC (3) in advance;
the method comprises the steps that an in-well liquid level meter (13) measures the liquid level in a diversion well (1) in real time, a sewage liquid level meter (21) measures the liquid level in a sewage interception pipe (2) in real time, and a PLC (programmable logic controller) 3) obtains the liquid level;
the PLC (3) judges the sizes among h0, h1 and h2 in real time, and when h0 is more than or equal to h1, the PLC (3) opens the gate; when h2< h0< h1, the shutter (12) remains unchanged in the existing state; when h0 is less than or equal to h2, the PLC (3) closes the gate (12).
8. The method of backflow prevention for a shunt well system of claim 7, wherein: the height of the weir gate (11) remains below a safety guard level equal to the height of the lowest topography of the jurisdiction of the diverter well (1).
9. The method of backflow prevention for a shunt well system of claim 8, wherein: the weir gate (11) is a downward opening type weir gate, and the height of the weir gate (11) is 50mm lower than the safety warning liquid level.
10. The method of backflow prevention for a shunt well system of claim 7, wherein: the gate (12) is connected with a first driving device, and the PLC (3) is used for controlling the first driving device to open or close the gate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711019630.3A CN107605015B (en) | 2017-10-27 | 2017-10-27 | Diversion well system for preventing sewage from flowing backwards and backflow preventing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711019630.3A CN107605015B (en) | 2017-10-27 | 2017-10-27 | Diversion well system for preventing sewage from flowing backwards and backflow preventing method |
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| CN107605015A CN107605015A (en) | 2018-01-19 |
| CN107605015B true CN107605015B (en) | 2023-10-20 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109339189A (en) * | 2018-10-30 | 2019-02-15 | 武汉圣禹排水系统有限公司 | A kind of sewage pipe of shunting well and/or the reverse-filling method and system of first rain pipe |
| CN113216357B (en) * | 2021-04-19 | 2022-07-15 | 长安大学 | Drainage pipeline tail end backflow prevention linkage system and construction method thereof |
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| CN105888046A (en) * | 2016-04-19 | 2016-08-24 | 武汉圣禹排水系统有限公司 | Novel anti-backflow intercepting well control method |
| CN207567895U (en) * | 2017-10-27 | 2018-07-03 | 武汉圣禹排水系统有限公司 | A kind of shunting well system for preventing backing up of sewage |
-
2017
- 2017-10-27 CN CN201711019630.3A patent/CN107605015B/en active Active
Patent Citations (7)
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| JP2009103028A (en) * | 2007-10-23 | 2009-05-14 | Toshiba Corp | Control device and control method of rain water pump |
| CN202144628U (en) * | 2011-07-02 | 2012-02-15 | 安徽汉威智能科技有限公司 | Novel automatic control intercepting well |
| CN105544712A (en) * | 2016-02-04 | 2016-05-04 | 武汉圣禹排水系统有限公司 | Hydraulic control intercepting well and control method thereof |
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Address after: No. 509 Weihu Road, Shamao Street, Hannan District, Wuhan City, Hubei Province, 430000 Patentee after: Wuhan Shengyu Smart Ecological Environmental Protection Co.,Ltd. Address before: 430000, No. 189, Minli North Road, Wuhan Economic and Technological Development Zone, Hubei Province Patentee before: WUHAN SHENGYU DRAINAGE SYSTEM Co.,Ltd. |