CN108018934B - Integrated intelligent dirt intercepting well - Google Patents
Integrated intelligent dirt intercepting well Download PDFInfo
- Publication number
- CN108018934B CN108018934B CN201711209915.3A CN201711209915A CN108018934B CN 108018934 B CN108018934 B CN 108018934B CN 201711209915 A CN201711209915 A CN 201711209915A CN 108018934 B CN108018934 B CN 108018934B
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- sewage
- water
- well
- interception
- cavity
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 161
- 239000010865 sewage Substances 0.000 claims abstract description 99
- 238000003756 stirring Methods 0.000 claims abstract description 30
- 238000012544 monitoring process Methods 0.000 claims abstract description 21
- 238000011010 flushing procedure Methods 0.000 claims abstract description 20
- 230000001680 brushing effect Effects 0.000 claims abstract description 11
- 230000008054 signal transmission Effects 0.000 claims abstract description 11
- 239000010813 municipal solid waste Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 210000004209 hair Anatomy 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses an integrated intelligent sewage interception well, which comprises a well body, a water inlet, a water outlet, a lower sewage outlet and an overhaul port; the well body is internally divided into an upper layer and a lower layer, wherein the upper layer comprises a sewage interception cavity communicated with the water inlet and a hydraulic cavity close to one side of the water outlet; the sewage interception cavity is internally provided with water flow control equipment, a sewage blocking device positioned at the inner side of the water inlet, and a drainage mechanism for directly introducing water flow of the water inlet to the water outlet; the hydraulic cavity is internally provided with a hydraulic integrated module for controlling the on-off of related hydraulic equipment; the well body is also internally provided with monitoring equipment and a stirring mechanism for brushing the bottom of the sewage interception cavity and stirring sewage; the outside of the well body is provided with a flushing mechanism for introducing water flow of the water outlet into the sewage interception cavity; the sewage interception well further comprises a monitoring center, a cloud server, a mobile terminal, a signal transmission module and a control host. The invention realizes the intelligent control of the sewage interception well.
Description
Technical Field
The invention relates to the field of sewage interception wells, in particular to an integrated intelligent sewage interception well.
Background
The sewage interception well is used for intercepting and diverting sewage.
The sewage interception well in the prior art has the following defects: firstly, the sewage cannot be split accurately; secondly, along with the use, the pollutants at the bottom of the sewage interception well can be gradually accumulated, and the pollutants need to be cleaned manually and regularly; thirdly, intelligent control of the sewage interception well cannot be achieved.
Disclosure of Invention
The invention aims to provide an integrated intelligent sewage interception well so as to realize intelligent control of the sewage interception well.
The purpose of the invention is realized in the following way: the integrated intelligent sewage interception well comprises a well body, a water inlet and a water outlet which are arranged on two sides of the well body, and a lower sewage outlet which is positioned at the lower end of the side surface of the well body; the well body also comprises an overhaul port positioned at the upper end of the well body; wherein the access hole is provided with an access cover plate and a gas spring for supporting the access cover plate; the inner part of the well body is divided into an upper layer and a lower layer, wherein the upper layer comprises a sewage interception cavity communicated with the water inlet and a hydraulic cavity close to one side of the water outlet; the sewage interception cavity is internally provided with water flow control equipment for controlling water flow, a sewage blocking device which is positioned at the inner side of the water inlet and used for intercepting sewage, and a drainage mechanism which is positioned between the water inlet and the water outlet and used for directly introducing the water flow of the water inlet to the water outlet; the hydraulic cavity is internally provided with a hydraulic integrated module which is positioned above the water outlet and used for controlling the on-off of related hydraulic equipment; the well body is also internally provided with monitoring equipment for monitoring conditions in the well and a stirring mechanism for brushing the bottom of the sewage interception cavity and stirring sewage; the outside of the well body is provided with a flushing mechanism which is communicated with the water outlet and the sewage interception cavity and is used for introducing water flow of the water outlet into the sewage interception cavity; the sewage interception well further comprises a monitoring center, a cloud server, a mobile terminal, a signal transmission module and a control host; the cloud server is respectively in communication connection with the monitoring center, the mobile terminal and the signal transmission module; the signal transmission module is electrically connected with the control host; the control host is electrically connected with the hydraulic integrated module, the stirring mechanism and the flushing mechanism respectively.
The water flow control device comprises a drainage gate arranged on the inner side of the water outlet, a sewage interception gate arranged on the inner side of the lower sewage outlet, and a water pump arranged at the bottom of the sewage interception cavity and used for discharging sewage; the well body is also provided with an upper drain outlet communicated with the water pump; the control host is electrically connected with the water pump; the hydraulic integrated module is respectively connected with the drainage gate, the dirt-intercepting gate and the drainage mechanism in a hydraulic transmission way.
The trash rack comprises a trash interception grille arranged on the inner side of the water inlet, and a trash interception basket which can be installed inside the trash interception grille in an up-down sliding mode.
The monitoring equipment comprises a first water level meter, a second water level meter and a water quality monitor, wherein the first water level meter is arranged in the hydraulic cavity and positioned above the water outlet and used for monitoring the water level in the water outlet pipe, the second water level meter is arranged on two sides of the drainage gate and used for monitoring the water level in the well, and the water quality monitor is further arranged at the overhaul port and used for recording and monitoring the conditions in the well.
Compared with the prior art, the invention has the beneficial effects that: the invention is additionally provided with a plurality of sensing devices which are in communication connection with the outside, thereby being convenient for the outside to monitor the condition in the well; meanwhile, water flow control equipment is additionally arranged, the water flow control equipment is used as an executing mechanism to control water flow, and then the water flow control equipment is matched with the processing analysis of a control host, so that the automatic control of the sewage interception well is realized; the drainage mechanism is also arranged in the well body and directly introduces water flow at the water inlet to the water outlet, so that the water flow is prevented from being polluted by sewage in the well; the well body is internally additionally provided with a stirring mechanism for brushing the bottom of the sewage interception cavity, and is also provided with a flushing mechanism matched with the stirring mechanism for use, and corresponding sewage discharging equipment is additionally arranged, so that the bottom of the sewage interception cavity is ensured to be clean, and the cleaning period is reduced; the stirring mechanism is operated to fully mix dirt in the dirt interception well with water, so that the dirt is discharged at the moment, the discharge is more thorough, and the accumulation of the dirt in the dirt interception cavity is reduced; in conclusion, the intelligent control of the sewage interception well is realized, meanwhile, the sanitation condition in the well is improved, and the service cycle of equipment is prolonged.
As a preferred embodiment of the present invention; the drainage mechanism comprises a drainage plate hinged on the drainage gate and used for directly leading water flow of the water inlet into the water outlet, a connecting plate fixedly arranged on the sewage interception grating and used for being matched with the drainage plate to guide water flow, and a hydraulic cylinder with two ends respectively hinged on the drainage gate and the drainage plate and used for controlling the opening and closing of the drainage plate.
As a preferred embodiment of the present invention; the stirring mechanism comprises two groups of stirring motors which are arranged at the lower layer of the well body and have opposite rotation directions of the rotor, and further comprises two groups of impellers which are respectively connected with the two groups of stirring motors in a transmission way and are used for brushing the bottom of the sewage interception cavity and stirring sewage.
Further; the lower ends of the blades of the impeller are also provided with brush hair for brushing.
As a preferred embodiment of the present invention; the flushing mechanism comprises a flushing pipe communicated with the water outlet and the sewage interception cavity, and further comprises an electromagnetic valve which is arranged on the flushing pipe and used for controlling the on-off of water flow in the pipe.
Further; the outer sides of the water inlet, the water outlet and the lower sewage outlet are all provided with flexible rubber joints for pipeline connection.
Further; and a cover plate lock is arranged on the overhaul cover plate.
Further; the dirt intercepting basket is internally provided with a handle which is convenient for drawing the dirt intercepting basket.
Further; the camera is provided with a light supplementing lamp for providing auxiliary light.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a schematic structural view of the present invention.
Fig. 3 is a front view of the impeller of the present invention.
Fig. 4 is a control relationship diagram of the present invention.
The device comprises a 1 well body, a 2 water inlet, a 3 water outlet, a 4 lower drain outlet, a 5 upper drain outlet, a 6 flexible rubber joint, a 7 overhaul port, a 71 overhaul cover plate, a 71a cover plate lock, a 72 gas spring, an 8 monitoring center, a 9 cloud server, a 10 mobile terminal, an 11 control host, a 12 signal transmission module, a 13 hydraulic integrated module, a 14 sewage interception gate, a 15 drainage gate, a 16 water pump, a 17 first water level gauge, a 18 second water level gauge, a 19 water quality monitor, a 20 camera, a 21 sewage interception grille, a 211 sewage interception basket, a 211a handle, a 22 stirring motor, a 23 impeller, 23a brush hair, a 24 hydraulic cylinder, a 25 drainage plate, a 26 connecting plate, a 27 flushing pipe and a 28 electromagnetic valve.
Detailed Description
As shown in fig. 1-4, the integrated intelligent sewage interception well comprises a well body 1, a water inlet 2 and a water outlet 3 which are arranged on two sides of the well body 1, and a lower sewage outlet 4 which is positioned on the lower end of the side surface of the well body 1; the well body 1 also comprises an overhaul port 7 positioned at the upper end of the well body; wherein the access opening 7 is provided with an access cover plate 71 and a gas spring 72 for supporting the access cover plate 71; the interior of the well body 1 is divided into an upper layer and a lower layer, wherein the upper layer comprises a sewage interception cavity communicated with the water inlet 2 and a hydraulic cavity near one side of the water outlet 3; the sewage interception cavity is internally provided with water flow control equipment for controlling water flow, a sewage blocking device which is positioned at the inner side of the water inlet 2 and used for intercepting sewage, and a drainage mechanism which is positioned between the water inlet 2 and the water outlet 3 and used for directly introducing the water flow of the water inlet 2 to the water outlet 3; a hydraulic integrated module 13 which is positioned above the water outlet 3 and used for controlling the on-off of related hydraulic equipment is arranged in the hydraulic cavity; the well body 1 is also internally provided with monitoring equipment for monitoring conditions in the well and a stirring mechanism for brushing the bottom of the sewage interception cavity and stirring sewage; the outside of the well body 1 is provided with a flushing mechanism which is communicated with the water outlet 3 and the sewage interception cavity and is used for introducing water flow of the water outlet 3 into the sewage interception cavity; the sewage interception well further comprises a monitoring center 8, a cloud server 9, a mobile terminal 10, a signal transmission module 12 and a control host 11; the cloud server 9 is respectively in communication connection with the monitoring center 8, the mobile terminal 10 and the signal transmission module 12; the signal transmission module 12 is electrically connected with the control host 11; the control host 11 is electrically connected with the hydraulic integrated module 13, the stirring mechanism and the flushing mechanism respectively.
The water flow control device comprises a drainage gate 15 arranged on the inner side of the water outlet 3, a sewage interception gate 14 arranged on the inner side of the lower sewage outlet 4, and a water pump 16 arranged at the bottom of the sewage interception cavity and used for discharging sewage; the well body 1 is also provided with an upper sewage outlet 5 communicated with a water pump 16; the control host 11 is electrically connected with the water pump 16; the hydraulic integrated module 13 is respectively connected with the drainage gate 15, the dirt-intercepting gate 14 and the drainage mechanism in a hydraulic transmission way.
The trash rack device comprises a trash interception grille 21 arranged on the inner side of the water inlet 2, and a trash interception basket 211 which is arranged inside the trash interception grille 21 in a vertical sliding mode.
The monitoring equipment comprises a first water level meter 17 which is arranged in the hydraulic cavity and is positioned above the water outlet 3 and used for monitoring the water level in the water outlet pipe, a second water level meter 18 which is arranged on two sides of the drainage gate 15 and used for monitoring the water level in the well, a water quality monitor 19 which is used for monitoring the water quality in the well, and a camera 20 which is arranged at the overhaul port 7 and used for recording and monitoring the condition in the well.
The drainage mechanism comprises a drainage plate 25 hinged on the drainage gate 15 and used for directly leading water flow of the water inlet 2 into the water outlet 3, a connecting plate 26 fixedly arranged on the sewage interception grating 21 and used for being matched with the drainage plate 25 to guide the water flow, and a hydraulic cylinder 24 with two ends respectively hinged on the drainage gate 15 and the drainage plate 25 and used for controlling the opening and closing of the drainage plate 25.
The stirring mechanism comprises two groups of stirring motors 22 which are arranged at the lower layer of the well body 1 and have opposite rotation directions of rotors, and two groups of impellers 23 which are respectively connected with the two groups of stirring motors 22 in a transmission way and are used for brushing the bottom of the sewage interception cavity and stirring sewage.
The lower ends of the blades of the impeller 23 are also provided with bristles 23a for brushing.
The flushing mechanism comprises a flushing pipe 27 communicated with the water outlet 3 and the dirt intercepting cavity, and further comprises an electromagnetic valve 28 which is arranged on the flushing pipe 27 and used for controlling the on-off of water flow in the pipe.
The outer sides of the water inlet 2, the water outlet 3 and the lower sewage outlet 4 are all provided with flexible rubber joints 6 for pipeline connection.
The upper access panel 71 is provided with a panel lock 71a.
The dirt intercepting basket 211 is provided with a handle 211a which is convenient for drawing the dirt intercepting basket 211.
The camera 20 is provided with a light supplement lamp for providing auxiliary light.
When the system works, all sensing devices work normally, and the condition in the well is monitored in real time.
In the early stage of rain, the water quality does not reach the standard, the drainage gate 15 and the drainage mechanism are closed, the sewage interception gate 14 is opened, and sewage flows out from the sewage interception gate 14; if the water level in the well is continuously high, the water pump 16 is started and pollution is discharged at the same time; in the middle and later period of rain, the water quality reaches the standard, the drainage gate 15 is opened, the drainage mechanism is opened, and the water flow of the water inlet 2 is directly introduced into the water outlet 3.
When the sensing equipment monitors that the water quality in the well reaches the standard when the sensing equipment does not rain, a drainage valve 15 and a drainage mechanism are opened for drainage; otherwise, the sewage interception gate 14 or the water pump 16 is opened to carry out sewage disposal;
when the sensing equipment monitors that the water level in the well exceeds the warning line, the drainage gate 15, the drainage mechanism, the sewage interception gate 14 and the water pump 16 are all opened to cooperatively drain water.
When cleaning, the dirt-intercepting gate 14, the water pump 16 and the drainage gate 15 are closed, and water is stored in the well; then starting a stirring mechanism to stir; then the sewage interception gate 14 or the water pump 16 is timely started to carry out sewage disposal; then, a drainage valve 15, a drainage mechanism and a flushing mechanism are started, and water flow with the water quality reaching the standard is introduced into the sewage interception cavity and is scrubbed and stirred by a stirring mechanism; finally, the dirt stop 14 or the water pump 16 is opened at the right time for discharging the flushing water.
The invention is not limited to the above embodiments, and based on the technical solution disclosed in the invention, a person skilled in the art may make some substitutions and modifications to some technical features thereof without creative effort according to the technical content disclosed, and all the substitutions and modifications are within the protection scope of the invention.
Claims (8)
1. The integrated intelligent sewage interception well comprises a well body (1), a water inlet (2) and a water outlet (3) which are arranged on two sides of the well body (1), and a lower sewage outlet (4) which is positioned at the lower end of the side surface of the well body (1); the well body also comprises an overhaul port (7) positioned at the upper end of the well body (1); the method is characterized in that: an access cover plate (71) is arranged at the access opening (7), and a gas spring (72) for supporting the access cover plate (71) is also arranged; the inner part of the well body (1) is divided into an upper layer and a lower layer, wherein the upper layer comprises a sewage interception cavity communicated with the water inlet (2) and a hydraulic cavity close to one side of the water outlet (3); the sewage interception cavity is internally provided with water flow control equipment for controlling water flow, a sewage interception device which is positioned at the inner side of the water inlet (2) and used for intercepting sewage, and a drainage mechanism which is positioned between the water inlet (2) and the water outlet (3) and used for directly introducing the water flow of the water inlet (2) to the water outlet (3); the hydraulic cavity is internally provided with a hydraulic integrated module (13) which is positioned above the water outlet (3) and used for controlling the on-off of related hydraulic equipment; the well body (1) is internally provided with monitoring equipment for monitoring conditions in the well and a stirring mechanism for brushing the bottom of the sewage interception cavity and stirring sewage; the outside of the well body (1) is provided with a flushing mechanism which is communicated with the water outlet (3) and the sewage interception cavity and is used for introducing water flow of the water outlet (3) into the sewage interception cavity; the sewage interception well further comprises a monitoring center (8), a cloud server (9), a mobile terminal (10), a signal transmission module (12) and a control host (11); the cloud server (9) is respectively in communication connection with the monitoring center (8), the mobile terminal (10) and the signal transmission module (12); the signal transmission module (12) is electrically connected with the control host (11); the control host (11) is respectively and electrically connected with the hydraulic integrated module (13), the stirring mechanism and the flushing mechanism;
the water flow control device comprises a drainage gate (15) arranged at the inner side of the water outlet (3), a sewage interception gate (14) arranged at the inner side of the lower sewage outlet (4), and a water pump (16) arranged at the bottom of the sewage interception cavity and used for discharging sewage; an upper drain outlet (5) communicated with the water pump (16) is also arranged on the well body (1); the control host (11) is electrically connected with the water pump (16); the hydraulic integrated module (13) is respectively connected with the drainage gate (15), the dirt interception gate (14) and the drainage mechanism in a hydraulic transmission manner;
the drainage mechanism comprises a drainage plate (25) hinged on the drainage gate (15) and used for directly introducing water flow of the water inlet (2) into the water outlet (3), a connecting plate (26) fixedly arranged on the dirt interception grid (21) and used for guiding water flow by being matched with the drainage plate (25), and a hydraulic cylinder (24) with two ends respectively hinged on the drainage gate (15) and the drainage plate (25) and used for controlling the opening and closing of the drainage plate (25);
the trash rack device comprises a trash interception grille (21) arranged at the inner side of the water inlet (2), and a trash interception basket (211) which is arranged in the trash interception grille (21) in a vertically sliding manner;
the monitoring equipment comprises a first water level meter (17) which is arranged in the hydraulic cavity and is positioned above the water outlet (3) and used for monitoring the water level in the water outlet pipe, a second water level meter (18) which is arranged on two sides of the drainage gate (15) and used for monitoring the water level in the well, a water quality monitor (19) which is used for monitoring the water quality in the well, and a camera (20) which is arranged at the overhaul port (7) and used for recording and monitoring the condition in the well.
2. The integrated intelligent abatement well of claim 1, wherein: the stirring mechanism comprises two groups of stirring motors (22) which are arranged on the lower layer of the well body (1) and have opposite rotation directions of the rotor, and further comprises two groups of impellers (23) which are respectively connected with the two groups of stirring motors (22) in a transmission manner and are used for brushing the bottom of the sewage interception cavity and stirring sewage.
3. The integrated intelligent abatement well of claim 2, wherein: the lower ends of the blades of the impeller (23) are also provided with brush hairs (23 a) for brushing.
4. The integrated intelligent abatement well of claim 1, wherein: the flushing mechanism comprises a flushing pipe (27) communicated with the water outlet (3) and the sewage interception cavity, and further comprises an electromagnetic valve (28) which is arranged on the flushing pipe (27) and used for controlling the on-off of water flow in the pipe.
5. The integrated intelligent abatement well of claim 1, wherein: the outer sides of the water inlet (2), the water outlet (3) and the lower sewage outlet (4) are provided with flexible rubber joints (6) for pipeline connection.
6. The integrated intelligent abatement well of claim 1, wherein: and a cover plate lock (71 a) is arranged on the access cover plate (71).
7. The integrated intelligent abatement well of claim 1, wherein: a handle (211 a) which is convenient for drawing the sewage intercepting basket (211) is arranged in the sewage intercepting basket (211).
8. The integrated intelligent abatement well of claim 1, wherein: the camera (20) is provided with a light supplementing lamp for providing auxiliary light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711209915.3A CN108018934B (en) | 2017-11-28 | 2017-11-28 | Integrated intelligent dirt intercepting well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711209915.3A CN108018934B (en) | 2017-11-28 | 2017-11-28 | Integrated intelligent dirt intercepting well |
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| Publication Number | Publication Date |
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| CN108018934A CN108018934A (en) | 2018-05-11 |
| CN108018934B true CN108018934B (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711209915.3A Active CN108018934B (en) | 2017-11-28 | 2017-11-28 | Integrated intelligent dirt intercepting well |
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| Country | Link |
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| CN (1) | CN108018934B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412011A (en) * | 2018-05-17 | 2018-08-17 | 中国建筑设计院有限公司 | A kind of combined system of reverse-filling shuts off exhaust system |
| CN112982625A (en) * | 2021-02-05 | 2021-06-18 | 上海华臻环保工程技术服务中心 | Automatic sewage intercepting system with intelligent monitoring system |
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| CN107190842A (en) * | 2017-05-27 | 2017-09-22 | 武汉圣禹排水系统有限公司 | A kind of control method for shunting of accurately being removed contamination for rainwater |
| CN207512882U (en) * | 2017-11-28 | 2018-06-19 | 扬州蓝翔机电工程有限公司 | Integral intelligent cuts dirty well |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120128423A1 (en) * | 2010-11-22 | 2012-05-24 | Grant Michael Hardgrave | Method and apparatus for a drywell retrofit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201362869Y (en) * | 2008-11-25 | 2009-12-16 | 北京科净源科技股份有限公司 | Rainwater safety abandoning distributing control device |
| CN202065160U (en) * | 2011-01-06 | 2011-12-07 | 上海市城市建设设计研究院 | Monitoring system for rainwater pumping station |
| CN104532947A (en) * | 2015-01-04 | 2015-04-22 | 上海市城市建设设计研究总院 | Underground open-type storage pond |
| CN105672465A (en) * | 2016-03-07 | 2016-06-15 | 济创环保工程（苏州）有限公司 | Unpowered current-limiting intelligent intercepting well with overflow grating |
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| CN108018934A (en) | 2018-05-11 |
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