CN107632622B - Anti-backflow sewage treatment well and anti-backflow control method - Google Patents
Anti-backflow sewage treatment well and anti-backflow control method Download PDFInfo
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- CN107632622B CN107632622B CN201711020238.0A CN201711020238A CN107632622B CN 107632622 B CN107632622 B CN 107632622B CN 201711020238 A CN201711020238 A CN 201711020238A CN 107632622 B CN107632622 B CN 107632622B
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 239000010865 sewage Substances 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 105
- 239000007788 liquid Substances 0.000 claims abstract description 98
- 230000002265 prevention Effects 0.000 claims abstract description 45
- 238000006073 displacement reaction Methods 0.000 claims abstract description 24
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 230000001276 controlling effect Effects 0.000 abstract description 13
- 230000000875 corresponding effect Effects 0.000 abstract description 5
- 239000008239 natural water Substances 0.000 description 3
- 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
- 238000012806 monitoring device Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
Abstract
The invention discloses a backflow-preventing sewage treatment well which comprises a well body, a downward opening type weir gate, a driving device, a displacement sensor, a liquid level meter and a control device. The two side walls of the well body are respectively provided with a water inlet and a water outlet; the lower opening type weir gate is arranged at the water outlet; the driving device is connected with the lower opening type weir gate and drives the lower opening type weir gate to ascend or descend; the displacement sensor is used for monitoring the top height of the downward opening type weir gate; the liquid level meter is positioned at the downstream side of the lower open type weir gate and is used for monitoring the liquid level outside the well body and close to the water outlet; the control device is connected with the driving device, the displacement sensor and the liquid level meter, and is used for judging whether the lower open type weir gate executes a backflow prevention program or not through the height difference between the top height of the lower open type weir gate monitored by the displacement sensor and the liquid level, close to the water outlet, outside the well body monitored by the liquid level meter, and controlling the driving device to execute corresponding actions. The invention also discloses a backflow prevention control method. The invention has simple structure and high efficiency and rapidness in control process.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to a backflow-preventing sewage treatment well and a backflow-preventing control method.
Background
The sewage treatment well in the current market comprises a diversion well, a drainage well and a intercepting well, and rainwater from a community and other areas is collected into the sewage treatment well for treatment and then discharged into a natural water body through a water outlet. In the existing sewage treatment well pipeline system, the water quantity control of the weir gate is not perfect, and when the liquid level of the natural water body is higher than the liquid level in the sewage treatment well, the water of the natural water body easily flows backwards into the sewage treatment well, so that urban waterlogging is aggravated.
In the prior art, when the sewage treatment well executes the anti-backflow program, it is often necessary to judge whether the liquid level in the well is greater than the liquid level outside the well, when the liquid level in the well is greater than the liquid level outside the well, the anti-backflow program is not executed, when the liquid level in the well is less than the liquid level outside the well, whether the height difference between the weir gate height and the liquid level outside the well is less than the safety height difference is further judged, if the height difference is less than the safety height difference, the anti-backflow program is executed, otherwise, the anti-backflow program is not executed. In this way, three conditions of the liquid level in the well, the liquid level outside the well and the height of the downward opening type weir gate need to be considered simultaneously, the factors are more, the required monitoring devices are more, the cost is more, and if the monitoring devices are damaged, the reasons for investigation are increased.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide the backflow-preventing sewage treatment well which can prevent backflow and discharge flood safely, and has the advantages of simple structure and high efficiency and rapidness in control process.
In order to achieve the above purpose, the invention adopts the following technical scheme: a backflow prevention sewage treatment well, comprising:
the well body is provided with a water inlet and a water outlet on two side walls respectively;
the lower open type weir gate is arranged at the water outlet;
the driving device is connected with the lower opening type weir gate and drives the lower opening type weir gate to ascend or descend;
the displacement sensor is used for monitoring the top height of the downward opening type weir gate;
the liquid level meter is positioned on the downstream side of the downward opening type weir gate and is used for monitoring the liquid level outside the well body and close to the water outlet;
the control device is connected with the driving device, the displacement sensor and the liquid level meter, and is used for judging whether the downward opening type weir gate executes a backflow prevention program or not through the height difference between the top height of the downward opening type weir gate monitored by the displacement sensor and the liquid level, which is close to the water outlet, of the well body monitored by the liquid level meter, and controlling the driving device to execute corresponding actions.
Further, a space exists between the downward opening type weir gate and a well wall at the side where the water outlet is located; or the lower opening type weir gate is contacted with the well wall at the side where the water outlet is positioned, and the lower opening type weir gate can open and close the water outlet.
Further, the sewage treatment well further comprises an alarm device, and the alarm device is connected with the control device; and presetting a safety height difference between the height of the top of the lower opening type weir gate and the liquid level of the outside of the well body, which is close to the water outlet, and alarming by the alarm device when the height difference between the height of the top of the lower opening type weir gate and the liquid level of the outside of the well body, which is close to the water outlet, is not equal to the safety height difference.
Further, the alarm device is one of an indicator light, an electronic screen, an audible alarm and a vibration alarm.
Further, the driving device is an electric lifter or a hydraulic cylinder.
Further, the control device is a PLC.
The invention also provides a backflow prevention control method of the backflow prevention sewage treatment well, which comprises the following steps:
setting: the safety height difference between the height of the top of the downward opening type weir gate and the liquid level outside the well body close to the water outlet is h;
the displacement sensor monitors the height H of the top of the downward opening type weir gate in real time 1 The liquid level meter monitors the liquid level H outside the well body near the water outlet in real time 2 ；
The control device calculates the height difference between the top height of the downward opening type weir gate and the liquid level outside the well body and close to the water outlet according to the height monitored by the displacement sensor and the liquid level monitored by the liquid level meter at the same moment, judges whether the downward opening type weir gate executes a backflow prevention program according to the relation between the height difference and the safety height difference, and controls the driving device to execute corresponding actions;
when H is 1 -H 2 When the pressure is less than h, controlling the downward opening type weir gate to execute a backflow prevention program;
when H is 1 -H 2 And when the height is not less than h, controlling the downward opening type weir gate to execute a flood discharging procedure.
Further, a space exists between the downward opening type weir gate and a well wall at the side where the water outlet is located;
setting: the maximum anti-backflow height of the downward opening type weir gate is the maximum top of the downward opening type weir gate when the downward opening type weir gate is closedHeight H max ；
The backflow prevention program comprises the following steps: the downward opening type weir gate rises to H 1 -H 2 =h; when the liquid level outside the well body near the water outlet rises, the lower open type weir gate continues to rise until the top height of the lower open type weir gate is H max The method comprises the steps of carrying out a first treatment on the surface of the When the liquid level outside the well body near the water outlet descends, the downward opening weir gate descends along with until H 1 -H 2 ＝h。
Further, the lower opening type weir gate contacts with a well wall at the side where the water outlet is positioned, and the lower opening type weir gate can open and close the water outlet;
setting: the maximum anti-backflow height is the height H of the top of the downward opening type weir gate when the top of the anti-backflow height is positioned on the same horizontal line with the top of the water outlet max ；
The backflow prevention program comprises the following steps: the downward opening type weir gate rises to H 1 -H 2 =h; when the liquid level outside the well body near the water outlet rises, the lower open type weir gate continues to rise until the top height of the lower open type weir gate is H max The method comprises the steps of carrying out a first treatment on the surface of the When the liquid level outside the well body near the water outlet descends, the downward opening weir gate descends along with until H 1 -H 2 ＝h。
Further, setting: the flood discharge height difference between the top height of the downward opening type weir gate and the liquid level outside the well body and close to the water outlet is H 3 And H is 3 ＞h；
The flood discharge procedure is as follows:
when H is less than or equal to H 1 -H 2 ≤H 3 When the downward opening type weir gate keeps the current position;
when H is 1 -H 2 ＞H 3 And when the flood discharge process is performed, controlling the lower opening type weir gate to descend until H 1 -H 2 ＝h。
Compared with the prior art, the invention has the advantages that:
(1) According to the invention, whether the liquid level in the well is larger than the liquid level outside the well is not required to be considered, so that the consideration factors of the backflow prevention program are reduced, and the backflow prevention can be effectively realized, so that the judgment process is simpler and more efficient.
(2) The liquid level meter only needs one liquid level meter and is arranged at the water outlet, and the liquid level meter does not need to be arranged in the well, so that the cost is reduced.
(3) The invention has simple structure, is quick and effective in the actual control process, and feeds back the height difference between the top height of the lower open type weir gate and the liquid level outside the well body and close to the water outlet to the control device to control the anti-backflow program, and the lower open type weir gate is lifted along with the lifting of the liquid level outside the well body and close to the water outlet, so that a follow-up state is formed, and the sewage backflow is effectively prevented.
Drawings
FIG. 1 is a schematic diagram of a backflow prevention sewage treatment well according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for controlling the backflow prevention of a backflow prevention sewage treatment well, which is provided by the embodiment of the invention.
In the figure: 1. a well body; 10. a water inlet; 11. a water outlet; 2. a down-opening weir gate; 3. a displacement sensor; 4. a liquid level gauge; 5. and a control device.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, an embodiment of the present invention provides a backflow prevention sewage treatment well, which includes a well body 1, a down-opening weir gate 2, a driving device, a displacement sensor 3, a level gauge 4 and a control device 5.
Wherein, the two side walls of the well body 1 are respectively provided with a water inlet 10 and a water outlet 11;
the lower opening weir gate 2 is positioned in the well body 1 and is arranged at the water outlet 11;
in the present invention, the specific position of the lower start slice gate 2 has two modes, the first: the lower opening type weir gate 2 is spaced from the water inlet 10 and the water outlet 11; second kind: the lower opening type weir gate 2 is contacted with the well wall on the side where the water outlet 11 is positioned, and the lower opening type weir gate 2 can open and close the water outlet 11.
The driving device is connected with the lower opening type weir gate 2 and drives the lower opening type weir gate 2 to ascend or descend; the driving device in the invention can select an electric lifter or a hydraulic oil cylinder.
The displacement sensor 3 is used for monitoring the top height of the downward opening type weir gate 2;
the liquid level meter 4 is positioned at the downstream side of the lower opening type weir gate 2 and is used for monitoring the liquid level outside the well body 1 and close to the water outlet 11;
the control device 5 is connected with the driving device, the displacement sensor 3 and the liquid level meter 4, and the control device 5 is used for judging whether the lower open type weir gate 2 executes a backflow prevention program or not through the height difference between the top height of the lower open type weir gate 2 monitored by the displacement sensor 3 and the liquid level, which is close to the water outlet 11, outside the well body 1 monitored by the liquid level meter 4, and controlling the driving device to execute corresponding actions. The control device 5 in the present invention selects the PLC.
The invention can also be provided with an alarm device which is connected with the control device 5; the safety height difference between the top height of the lower opening type weir gate 2 and the liquid level outside the well body 1 and close to the water outlet 11 is preset, and when the height difference between the top height of the lower opening type weir gate 2 and the liquid level outside the well body 1 and close to the water outlet 11 is not equal to the safety height difference, the alarm device alarms.
Of course, the alarm device may select one of an indicator light, an electronic screen, an audible alarm, and a vibration alarm.
Specifically, in the invention, a safety height difference, which is marked as h, can be a value or a range, is preset between the top height of the lower opening type weir gate 2 and the liquid level outside the well body 1 and close to the water outlet 11; the displacement sensor 3 monitors the height of the top of the downward opening type weir gate 2 in real time and is marked as H 1 The liquid level meter 4 monitors the liquid level near the water outlet 11 outside the well body 1 in real time and is marked as H 2 When H 1 -H 2 When the pressure is less than H, the downward opening type weir gate 2 executes the anti-backflow procedure until H 1 -H 2 =h, preventing the backflow of off-well sewage into the well. While executing the anti-backflow procedure, other procedures cannot interrupt the anti-backflow procedure.
Meanwhile, a flood discharge height difference is preset between the top height of the downward opening type weir gate 2 and the liquid level outside the well body 1 and close to the water outlet 11, and is marked as H 3 Can be a value or a range, and H 3 > h; when H is 1 -H 2 At > hThe displacement sensor 3 and the liquid level meter 4 can feed back the real-time monitoring data to the control device 5, the control device 5 continues to judge if H is less than or equal to H 1 -H 2 ≤H 3 When the lower opening type weir gate 2 keeps the current position; if H 1 -H 2 ＞H 3 And when the flood discharge process is performed by controlling the lower opening type weir gate 2, the lower opening type weir gate 2 descends until H 1 -H 2 ＝h。
Referring to fig. 2, the invention also provides a method for controlling the backflow prevention of the backflow prevention sewage treatment well, which comprises the following steps:
s1: setting the safety height difference between the top height of the lower opening type weir gate 2 and the liquid level outside the well body 1 and close to the water outlet 11 as h;
s2: the displacement sensor 3 monitors the height H of the top of the downward opening type weir gate 2 in real time 1 The liquid level meter 4 monitors the liquid level H outside the well body 1 and near the water outlet 11 in real time 2 ；
S3: the control device 5 calculates the height difference between the top height of the lower open type weir gate 2 and the liquid level outside the well body 1 and close to the water outlet 11 according to the height monitored by the displacement sensor 3 and the liquid level monitored by the liquid level meter 4 at the same moment, judges whether the lower open type weir gate 2 executes a backflow prevention program according to the relation between the height difference and the safety height difference, and controls the driving device to execute corresponding actions;
s4: when H is 1 -H 2 When the pressure is less than h, controlling the downward opening type weir gate 2 to execute a backflow prevention program;
s5: when H is 1 -H 2 And when the height is not less than h, controlling the lower opening type weir gate 2 to execute a flood discharging procedure.
Specifically, the anti-backflow procedure is performed as follows:
(1) If a gap exists between the lower opening type weir gate 2 and the well wall on the side of the water outlet 11;
setting: the maximum anti-backflow height of the downward opening type weir gate 2 is the maximum height H of the top of the downward opening type weir gate when the downward opening type weir gate is closed max ；
The backflow prevention program comprises the following steps: the lower opening type weir gate 2 rises to H 1 -H 2 =h; when the liquid level outside the well body 1 near the water outlet 11 rises, the lower open type weir gate 2 continues to rise until the top height of the lower open type weir gate 2 isH max The method comprises the steps of carrying out a first treatment on the surface of the When the liquid level outside the well body 1 near the water outlet 11 descends, the downward opening weir gate 2 descends along with the liquid level until H 1 -H 2 ＝h。
(2) If the lower opening type weir gate 2 contacts with the well wall on the side where the water outlet 11 is positioned, the lower opening type weir gate 2 can open and close the water outlet 11;
setting: the maximum anti-backflow height is the height H of the top of the downward opening type weir gate 2, the top of which is positioned on the same horizontal line with the top of the water outlet 11 max ；
The backflow prevention program comprises the following steps: the lower opening type weir gate 2 rises to H 1 -H 2 =h; when the liquid level outside the well body 1 near the water outlet 11 rises, the lower open type weir gate 2 continues to rise until the height of the top of the lower open type weir gate 2 is H max The method comprises the steps of carrying out a first treatment on the surface of the When the liquid level outside the well body 1 near the water outlet 11 descends, the downward opening weir gate 2 descends along with the liquid level until H 1 -H 2 ＝h。
The flood discharge procedure is performed as follows:
setting: the flood discharge height difference between the top height of the lower opening type weir gate 2 and the liquid level outside the well body 1 near the water outlet 11 is H 3 And H is 3 ＞h；
When H is 1 -H 2 When H is greater than the preset value, the displacement sensor 3 and the liquid level meter 4 feed back the real-time monitoring data to the control device 5, the control device 5 continues to judge, and when H is less than or equal to H 1 -H 2 ≤H 3 When the lower opening type weir gate 2 keeps the current position; when H is 1 -H 2 ＞H 3 And when the flood discharge process is performed by controlling the lower opening type weir gate 2, the lower opening type weir gate 2 descends until H 1 -H 2 ＝h。
In summary, in the invention, the in-well level gauge is not needed, i.e. the factor of the level of the liquid upstream of the down-opening weir gate is not needed to be considered, only H is needed to be considered 1 And H is 2 Can be used for executing the anti-backflow program by H 1 -H 2 As principle, i.e. the height of the top of the down-opening weir gate is higher than the liquid level outside the well body near the water outlet and within the safety height difference, therefore, no matter how the liquid level inside and outside the well changes, the water outside the well will not flow backward, the principle is:
(1) When H is 1 -H 2 And when the pressure is less than h, executing a backflow prevention program:
if a gap exists between the downward opening type weir gate and the well wall at the side where the water outlet is positioned;
the downward opening type weir gate is lifted along with the lifting of the liquid level outside the well body and close to the water outlet, and the final target of the height difference of the downward opening type weir gate and the water outlet is ensured to be H 1 -H 2 If the limit condition occurs, the liquid level outside the well body near the water outlet is always increased, the lower open type weir gate is always increased until the height of the top of the lower open type weir gate is H max ；
If the lower opening type weir gate contacts with the well wall at the side where the water outlet is positioned, the lower opening type weir gate 2 can open and close the water outlet;
the downward opening type weir gate is lifted along with the lifting of the liquid level outside the well body and close to the water outlet, and the final target of the height difference of the downward opening type weir gate and the water outlet is ensured to be H 1 -H 2 If the limit condition occurs, the liquid level outside the well body near the water outlet is always raised, and the lower open type weir gate is always raised until the lower open type weir gate just blocks the water outlet, namely the height of the top of the lower open type weir gate is H max ；
Because the anti-backflow procedure is preferential, whether the liquid level of the upper stream of the lower open type weir gate is larger than the liquid level of the lower open type weir gate, which is close to the water outlet, is not required to be considered in the anti-backflow procedure, if the liquid level of the upper stream of the lower open type weir gate is smaller than the liquid level of the lower open type weir gate, which is close to the water outlet, the water can flow over the top of the lower open type weir gate and directly flow to the water outlet, which is equivalent to self-flood discharge if the liquid level of the upper stream of the lower open type weir gate is larger than the liquid level of the lower open type weir gate, which is close to the water outlet.
(2) When H is 1 -H 2 At > h, a flood discharge procedure is performed:
when H is less than or equal to H 1 -H 2 ≤H 3 When the lower opening type weir gate 2 keeps the current position; if the water level upstream of the lower open type weir gate is higher than the height of the top of the lower open type weir gate, water can flow over the top of the lower open type weir gate and directly to the water outlet, which is equivalent to self-flood discharge of water.
When H is 1 -H 2 ＞H 3 And when the flood discharge process is performed by controlling the lower opening type weir gate 2, the lower opening type weir gate 2 descends until H 1 -H 2 =h. This time is in the process of programmed flood discharge.
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 (9)
1. A backflow prevention control method for a backflow prevention sewage treatment well is characterized in that,
the anti-backflow sewage treatment well comprises:
the well body (1), water inlets (10) and water outlets (11) are respectively formed in two side walls of the well body (1);
the lower opening type weir gate (2), the lower opening type weir gate (2) is arranged at the water outlet (11);
the driving device is connected with the lower opening type weir gate (2) and drives the lower opening type weir gate (2) to ascend or descend;
a displacement sensor (3), wherein the displacement sensor (3) is used for monitoring the top height of the downward opening type weir gate (2);
a liquid level meter (4) which is positioned at the downstream side of the downward opening type weir gate (2) and is used for monitoring the liquid level outside the well body (1) and close to the water outlet (11);
the control device (5) is connected with the driving device, the displacement sensor (3) and the liquid level meter (4);
the method comprises the following steps:
setting: the safety height difference between the top height of the downward opening type weir gate (2) and the liquid level outside the well body (1) and close to the water outlet (11) is h;
the displacement sensor (3) monitors the height H of the top of the downward opening type weir gate (2) in real time 1 The liquid level meter (4) monitors the liquid level H outside the well body (1) and close to the water outlet (11) in real time 2 ；
The control device (5) calculates the height difference between the top height of the downward opening type weir gate (2) and the liquid level outside the well body (1) and close to the water outlet (11) according to the height monitored by the displacement sensor (3) and the liquid level monitored by the liquid level meter (4) at the same moment;
when H is 1 -H 2 When the pressure is less than h, controlling the downward opening type weir gate (2) to execute a backflow prevention program;
when H is 1 -H 2 And when the height is not less than h, controlling the downward opening type weir gate (2) to execute a flood discharging program.
2. A method of controlling backflow prevention in a backflow prevention sewage treatment well as claimed in claim 1, wherein: an interval exists between the lower opening type weir gate (2) and the well wall at the side where the water outlet (11) is positioned; or the lower opening type weir gate (2) is contacted with the well wall at the side where the water outlet (11) is positioned, and the lower opening type weir gate (2) can open and close the water outlet (11).
3. A method of controlling backflow prevention in a backflow prevention sewage treatment well as claimed in claim 1, wherein: the sewage treatment well further comprises an alarm device, wherein the alarm device is connected with the control device (5); the safety height difference between the height of the top of the downward opening type weir gate (2) and the liquid level outside the well body (1) and close to the water outlet (11) is preset, and when the height difference between the height of the top of the downward opening type weir gate and the liquid level outside the well body (1) and close to the water outlet (11) is not equal to the safety height difference, the alarm device alarms.
4. A method of controlling backflow prevention in a backflow prevention sewage treatment well as claimed in claim 3, wherein: the alarm device is one of an indicator light, an electronic screen, a sound alarm and a vibration alarm.
5. A method of controlling backflow prevention in a backflow prevention sewage treatment well as claimed in claim 1, wherein: the driving device is an electric lifter or a hydraulic cylinder.
6. A method of controlling backflow prevention in a backflow prevention sewage treatment well as claimed in claim 1, wherein: the control device (5) is a PLC.
7. A method of controlling backflow prevention in a backflow prevention sewage treatment well as claimed in claim 1, wherein:
an interval exists between the lower opening type weir gate (2) and the well wall at the side where the water outlet (11) is positioned;
setting: the maximum anti-backflow height of the downward opening type weir gate (2) is the maximum height H of the top of the downward opening type weir gate when the downward opening type weir gate is closed max ；
The backflow prevention program comprises the following steps: the downward opening type weir gate (2) rises to H 1 -H 2 =h; when the liquid level outside the well body (1) and close to the water outlet (11) rises, the lower open type weir gate (2) continues to rise until the top height of the lower open type weir gate (2) is H max The method comprises the steps of carrying out a first treatment on the surface of the When the liquid level outside the well body (1) and close to the water outlet (11) is lowered, the downward opening type weir gate (2) is lowered along with the water level until H 1 -H 2 ＝h。
8. A method of controlling backflow prevention in a backflow prevention sewage treatment well as claimed in claim 1, wherein:
the lower opening type weir gate (2) is contacted with a well wall at the side where the water outlet (11) is positioned, and the lower opening type weir gate (2) can open and close the water outlet (11);
setting: the maximum anti-backflow height is the height H of the top of the downward opening type weir gate (2) when the top of the anti-backflow height is positioned on the same horizontal line with the top of the water outlet (11) max ；
The backflow prevention program comprises the following steps: the downward opening type weir gate (2) rises to H 1 -H 2 =h; when the liquid level outside the well body (1) and close to the water outlet (11) rises, the lower open type weir gate (2) continues to rise until the top height of the lower open type weir gate (2) is H max The method comprises the steps of carrying out a first treatment on the surface of the When the liquid level outside the well body (1) and close to the water outlet (11) is lowered, the downward opening type weir gate (2) is lowered along with the water level until H 1 -H 2 ＝h。
9. A method of controlling backflow prevention in a backflow prevention sewage treatment well as claimed in claim 1, wherein:
setting: the flood discharge height difference between the top height of the downward opening type weir gate (2) and the liquid level outside the well body (1) and close to the water outlet (11) is H 3 And H is 3 ＞h；
The flood discharge procedure is as follows:
when H is less than or equal to H 1 -H 2 ≤H 3 When the lower opening type weir gate (2) keeps the current position;
when H is 1 -H 2 ＞H 3 When the flood discharge process is performed, the lower opening type weir gate (2) is controlled to descend until H 1 -H 2 ＝h。
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| CN111979987A (en) * | 2020-09-03 | 2020-11-24 | 北京清源华建环境科技有限公司 | Lower-opening weir gate |
| CN113293740A (en) * | 2020-10-16 | 2021-08-24 | 湖南清源华建环境科技有限公司 | Lower open weir gate with self-adaptive control system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204098204U (en) * | 2014-09-17 | 2015-01-14 | 安徽清环水工科技有限公司 | Early-stage rainwater is regulated and stored device |
| JP2015039396A (en) * | 2013-08-20 | 2015-03-02 | 株式会社ヤエス | Foot bathtub |
| CN105804223A (en) * | 2016-03-07 | 2016-07-27 | 济创环保工程（苏州）有限公司 | Intelligent anti-backward-flowing intercepting well with slag blocking function and electric-control flow-limiting function |
| CN205475656U (en) * | 2016-02-04 | 2016-08-17 | 武汉圣禹排水系统有限公司 | Hydraulic control vatch basin |
| 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 |
| CN106759828A (en) * | 2016-12-30 | 2017-05-31 | 武汉圣禹排水系统有限公司 | A kind of combined system of online treatment storage pond and energy-conservation drainage pumping plant |
-
2017
- 2017-10-27 CN CN201711020238.0A patent/CN107632622B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015039396A (en) * | 2013-08-20 | 2015-03-02 | 株式会社ヤエス | Foot bathtub |
| CN204098204U (en) * | 2014-09-17 | 2015-01-14 | 安徽清环水工科技有限公司 | Early-stage rainwater is regulated and stored device |
| CN205475656U (en) * | 2016-02-04 | 2016-08-17 | 武汉圣禹排水系统有限公司 | Hydraulic control vatch basin |
| CN105804223A (en) * | 2016-03-07 | 2016-07-27 | 济创环保工程（苏州）有限公司 | Intelligent anti-backward-flowing intercepting well with slag blocking function and electric-control flow-limiting function |
| 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 |
| CN106759828A (en) * | 2016-12-30 | 2017-05-31 | 武汉圣禹排水系统有限公司 | A kind of combined system of online treatment storage pond and energy-conservation drainage pumping plant |
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| CN107632622A (en) | 2018-01-26 |
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