CN109853713B - Intercepting well and intercepting flow control method thereof - Google Patents
Intercepting well and intercepting flow control method thereof Download PDFInfo
- Publication number
- CN109853713B CN109853713B CN201910109098.7A CN201910109098A CN109853713B CN 109853713 B CN109853713 B CN 109853713B CN 201910109098 A CN201910109098 A CN 201910109098A CN 109853713 B CN109853713 B CN 109853713B
- Authority
- CN
- China
- Prior art keywords
- intercepting
- mixed flow
- well
- flow pipe
- half joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000010865 sewage Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000005259 measurement Methods 0.000 claims abstract description 4
- 238000010998 test method Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 9
- 239000002352 surface water Substances 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000020673 hypertrichosis-acromegaloid facial appearance syndrome Diseases 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Sewage (AREA)
Abstract
The invention relates to a intercepting well and a intercepting flow control method thereof. The mixed flow pipe in the intercepting well integrally penetrates through the well body, and the bottom of the middle section of the mixed flow pipe in the well is cut off to form a channel for mixed flow sewage to enter the intercepting main pipe; the half joint is sleeved on the well mixed flow pipe. The control method of the intercepting capacity is to calculate the designed intercepting capacity of a single intercepting well according to the sewage quantity measurement and the total intercepting multiple of the service area of each intercepting well after determining the total intercepting multiple according to the capacity of the urban sewage treatment system required by overflow pollution control, and preliminarily set the axial position of the half joint of the intercepting well; after the intercepting well is put into use, the position of the half joint is axially adjusted according to the actual intercepting condition, so that the intercepting requirement is met. The invention can adjust the actual cut-off amount by adjusting the relative position of the half joint, effectively correct the design error and lead the design error to meet the objective requirement; the flap valve is arranged at the outlet of the mixed flow pipe, can discharge mixed flow water exceeding the interception capacity to the surface water body, and can prevent the surface water body from flowing backwards.
Description
Technical Field
The invention relates to an underflow type intercepting well with controllable intercepting capacity and an intercepting capacity control method thereof, and belongs to the technical field of municipal drainage facilities.
Background
The intercepting well is an important structure in municipal drainage system, can collect direct drainage water in dry days and reduce overflow pollution in rainy days. In dry days, sewage along a river outlet is intercepted and enters a sewage treatment plant; in rainy days, part of the rain and sewage mixed flowing water is intercepted and enters a sewage treatment plant, and the rain and sewage mixed flowing water exceeding the interception capacity is discharged into surface water.
The traditional intercepting well has the following defects of groove type, weir type and groove-weir combination: 1. the design cut-off amount is quite different from the cut-off amount of objective requirements. The design cutoff is determined by a certain investigation, research and theoretical calculation, setting different overflow weir heights and other measures; the interception amount of objective requirements is determined according to the actual condition of the confluence and mixed flow of each drainage port, the overflow pollution control requirement and the capacity of the urban sewage treatment system. The two errors are large, and once the height of the overflow weir is set, the height of the overflow weir is difficult to adjust. 2. Draining water and blocking water. The design rules require that the overflow weir top is higher than the river flood level to prevent the river from flowing backward, which tends to form a poor drainage. 3. The interception efficiency is low. In the drainage system, a plurality of intercepting wells are usually connected in series by an intercepting main pipe, water after intercepting the previous well is mixed with water before intercepting the next well, and then the mixed water is diluted step by step, so that the water concentration entering the sewage system is low. 4. Deposition contamination is severe. Most of the closure is surface water, the deposition pollution of pipes and wells is serious, and finally the water enters the river along with the flushing of storm, so that the urban water environment is influenced.
In recent years, the technology of a intercepting well is developed, and the intercepting well mainly comprises a sluice valve controlled by power to replace a fixed weir so as to realize the adjustable intercepting flow; an automatic system for controlling the opening of the gate valve according to the rainfall, the river water level and other information is provided; there are complex actuators that rely on buoyancy to control the opening of the gate valve, and so on. The new technologies realize the controllability of the cut-off rate, but complicated electromechanical equipment and automatic control equipment are adopted, so that the necessity is low, the failure rate is high, the investment is large, and the operation and maintenance cost is high. In addition, the conditions of low water interception quality concentration, drainage, water blocking and the like still exist.
Disclosure of Invention
Aiming at the problems of difficult control of interception rate, low interception water quality concentration, drainage, water blocking, river backflow, complex structure and the like in the prior art, the invention provides the intercepting well and the interception rate control method thereof, which can effectively improve the interception efficiency, adapt to interception times, smoothly discharge, reversely flow and stop, have no mechanical equipment, have high reliability, save investment and low operation and maintenance cost, and are suitable for the current situation and development requirements of the Chinese urban infrastructure.
In order to achieve the aim of the invention, the invention adopts the technical scheme that the invention provides an underflow type intercepting well with controllable intercepting capacity, which comprises a well body, a well cover and a mixed flow pipe, wherein the intercepting well has the structure that: the mixed flow pipe passes through two sides of the well body, one end is an inlet, and the other end is an outlet; a notch is formed in the bottom of the middle section of the well mixed flow pipe, so that mixed flow sewage enters an outlet of the intercepting main pipe, a half joint is sleeved on the well mixed flow pipe, the inner diameter of the half joint is the same as the outer diameter of the mixed flow pipe, and the length of the half joint is larger than the notch at the bottom of the mixed flow pipe; and the half joint is axially moved, so that the relative position of the half joint and the notch is changed, and the flow of the mixed flow sewage outlet is regulated.
In the technical scheme of the invention, the bottom of the well body is provided with the launder, the upper part of the launder is arc-shaped with high sides and low middle, and the intercepting main pipe is arranged in the middle of the launder. The outlet end of the mixed flow pipe is of an inclined section, and the flap valve is arranged at the outlet end of the mixed flow pipe.
The technical scheme of the invention also provides a intercepting flow control method of the intercepting well, which comprises the following steps:
(1) The mixed flow pipe passes through two sides of the well body, one end is an inlet, and the other end is an outlet; a notch is formed in the bottom of the middle section of the well mixed flow pipe, so that mixed flow sewage enters an outlet of the intercepting main pipe, a half joint is sleeved on the well mixed flow pipe, the inner diameter of the half joint is the same as the outer diameter of the mixed flow pipe, and the length of the half joint is larger than the notch at the bottom of the mixed flow pipe;
(2) Determining total interception factors according to the capacity of the urban sewage treatment system required by overflow pollution control;
(3) Calculating the designed intercepting capacity of a single intercepting well according to the sewage quantity measurement and the total intercepting multiple of the service area of each intercepting well;
(4) Determining the actual cut-off amount of the intercepting well by adopting a hydraulic test method, establishing the relation between the actual cut-off amount and the relative position of the half joint, and preliminarily setting the axial position of the half joint of the intercepting well;
(5) After the intercepting well is put into use, the position of the half joint is axially adjusted according to the actual intercepting condition in operation, the water passing area of the lower notch of the mixed flow pipe is changed, and the intercepting requirement is met.
Compared with the prior art, the invention has the beneficial effects that: the actual cut-off amount can be adjusted by adjusting the relative position of the half joint, so that the design error is effectively corrected, the design error is more in accordance with objective requirements, and overflow pollution is controlled to the greatest extent under the condition of certain sewage treatment capacity; the drainage resistance caused by interception is eliminated; the lower notch of the underflow type mixed flow pipe can reach higher interception concentration; effectively solves the problem of gradual dilution; the flap valve design can realize smooth drainage and prevent the river water from flowing backwards; the non-facility design means higher reliability, less investment and less operating and maintenance costs.
Drawings
Fig. 1 is a schematic structural view of a intercepting well according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a sewage interception principle of a intercepting well in a dry day according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a intercepting principle of the intercepting well in light rain according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a intercepting principle of the intercepting well in heavy rain according to an embodiment of the present invention;
in the figure, 1. A well body; 2. a well cover; 3. a mixing tube; 4. a half joint; 5. a shut-off dry pipe; 6. a launder; 7. a flap valve; 8. a sewage flow; 9. and (5) rain and sewage mixed flow.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
Example 1
The intercepting well provided by the invention is suitable for drainage systems with rainwater and sewage combined flow and incomplete rainwater and sewage split flow, and can also be used for collecting initial rainwater.
Referring to fig. 1, a schematic structural view of a intercepting well according to this embodiment is shown. The intercepting well mainly comprises a well body 1, a well cover 2, a mixed flow pipe 3, a half joint 4 and a flap valve 7. The well lid 2 is arranged at the top of the well body 1, the bottom of the well body is provided with a launder 6, the upper part of the launder is arc-shaped with high sides and low middle parts, so as to reduce accumulation pollution, and the intercepting main pipe 5 is arranged in the middle of the launder. One end of the mixed flow pipe 3 is an inlet, the other end is an outlet, the mixed flow pipe penetrates through two sides of a well body, a notch is formed in the bottom of the middle section of the mixed flow pipe in the well, the mixed flow pipe in the well is sleeved with a half joint 4 for the outlet of the mixed flow sewage entering the intercepting main pipe, the inner diameter of the half joint is the same as the outer diameter of the mixed flow pipe, and the length of the half joint is larger than the notch at the bottom of the mixed flow pipe; the half joint is axially moved, the relative position of the half joint and the notch is changed, and the half joint is used for adjusting the flow of the mixed flow sewage outlet and can be adapted to the cut-off flow. The outlet end of the mixed flow pipe is an inclined section, and the flap valve 7 is arranged at the outlet end of the mixed flow pipe, so that mixed flow water exceeding the interception capacity can be discharged to the surface water body, and the surface water body is prevented from flowing backwards; the water outlet of the mixed flow pipe is made into an inclined plane with a short upper part and a long lower part, which is beneficial to better achieving the sealing water stopping effect by utilizing the dead weight of the flap valve.
By adopting the intercepting well provided by the embodiment, the flow of the mixed flow sewage outlet can be changed by adjusting the relative positions of the half joint and the notch. The cut-off flow regulating and controlling method comprises the following steps:
1. determining total interception factors according to the capacity of the urban sewage treatment system required by overflow pollution control;
2. calculating the designed intercepting capacity of a single intercepting well according to the sewage quantity measurement and the total intercepting multiple of the service area of each intercepting well;
3. determining the actual cut-off amount of the intercepting well by adopting a hydraulic test method, establishing the relation between the actual cut-off amount and the relative position of the half joint, and preliminarily setting the axial position of the half joint of the intercepting well;
4. after the intercepting system is put into use, checking whether the actual intercepting condition of each intercepting well is proper; when the interception condition is not in accordance with the actual requirement, the Haff joint position is axially adjusted according to the actual interception condition in operation, the water passing area of the lower notch of the mixed flow pipe is changed, and the interception requirement is met.
With the improvement of urban sewage treatment capacity, when the water interception quantity is improved under the condition, the half joints of each intercepting well can be adjusted, and the intercepting requirement is further met.
Referring to fig. 2, a schematic diagram of a sewage interception principle of the intercepting well provided by the embodiment in a dry day is shown. In the dry day, only sewage 8 is arranged in the mixed flow pipe 3, all sewage flows into the intercepting main pipe 5 from the notch at the bottom of the mixed flow pipe and flows into the sewage treatment system, and the flap valve 7 at the outlet of the mixed flow pipe is in a closed state.
Referring to fig. 3, a schematic diagram of a intercepting principle of the intercepting well in light rain is shown in the embodiment. And the relative position of the half joint 4 and the notch is adjusted, the intercepting flow is adapted, and during small rain, the rain and sewage mixed flow 9 formed by rainfall does not exceed the intercepting capacity, the flap valve 7 at the outlet of the mixed flow pipe 3 is in a closed state, and the rain and sewage mixed flow completely enters the intercepting main pipe 5.
Referring to fig. 4, a schematic diagram of a intercepting principle of the intercepting well provided by the embodiment in heavy rain is shown. When heavy rain, the rain and sewage mixed flow 9 formed by rainfall exceeds the interception capacity, the rain and sewage mixed flow in the interception capacity enters the interception main pipe 5, the rest part is used for flushing the flap valve 7 at the outlet of the mixed flow pipe 3, and the rain and sewage mixed flow is drained into the river.
Claims (2)
1. The utility model provides a interception rate controllable vatch basin, includes well body (1), well lid (2) and mixed flow pipe (3), its characterized in that: the mixed flow pipe (3) penetrates through two sides of the well body (1), one end of the mixed flow pipe is an inlet, and the other end of the mixed flow pipe is an outlet; a notch is formed in the bottom of the middle section of the well mixed flow pipe, so that mixed flow sewage enters an outlet of the intercepting main pipe, a half joint (4) is sleeved on the well mixed flow pipe, the inner diameter of the half joint is the same as the outer diameter of the mixed flow pipe, and the length of the half joint is larger than the notch at the bottom of the mixed flow pipe; the half joint is axially moved, the relative position of the half joint and the notch is changed, and the half joint is used for adjusting the flow of the mixed flow sewage outlet;
the bottom of the well body is provided with a launder (6), the upper part of the launder is arc-shaped with high sides and low middle, and a interception main pipe (5) is arranged in the middle of the launder;
the outlet end of the mixed flow pipe is of an inclined section, and the flap valve (7) is arranged at the outlet end of the mixed flow pipe.
2. A method of intercepting flow control in a intercepting well according to claim 1, comprising the steps of:
(1) The mixed flow pipe (3) passes through two sides of the well body (1), one end is an inlet, and the other end is an outlet; a notch is formed in the bottom of the middle section of the well mixed flow pipe, so that mixed flow sewage enters an outlet of the intercepting main pipe, a half joint (4) is sleeved on the well mixed flow pipe, the inner diameter of the half joint is the same as the outer diameter of the mixed flow pipe, and the length of the half joint is larger than the notch at the bottom of the mixed flow pipe;
(2) Determining total interception factors according to overflow pollution control requirements and the capacity of the urban sewage treatment system;
(3) Calculating the designed intercepting capacity of a single intercepting well according to the sewage quantity measurement and the total intercepting multiple of the service area of each intercepting well;
(4) Determining the actual cut-off amount of the intercepting well by adopting a hydraulic test method, establishing the relation between the actual cut-off amount and the relative position of the half joint, and preliminarily setting the axial position of the half joint of the intercepting well;
(5) After the intercepting well is put into use, the position of the half joint is axially adjusted according to the actual intercepting condition in operation, the water passing area of the lower notch of the mixed flow pipe is changed, and the intercepting requirement is met.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910109098.7A CN109853713B (en) | 2019-02-03 | 2019-02-03 | Intercepting well and intercepting flow control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910109098.7A CN109853713B (en) | 2019-02-03 | 2019-02-03 | Intercepting well and intercepting flow control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109853713A CN109853713A (en) | 2019-06-07 |
| CN109853713B true CN109853713B (en) | 2024-03-19 |
Family
ID=66897684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910109098.7A Active CN109853713B (en) | 2019-02-03 | 2019-02-03 | Intercepting well and intercepting flow control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109853713B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018018657A1 (en) * | 2016-07-28 | 2018-02-01 | 深圳朝伟达科技有限公司 | Rainwater sewage interception method based on membrane separation technique |
| CN109056982A (en) * | 2018-09-28 | 2018-12-21 | 中铁第四勘察设计院集团有限公司 | A kind of section dirty overflow well of confluence of rainwater and sewage irrigation canals and ditches |
| CN209686556U (en) * | 2019-02-03 | 2019-11-26 | 苏州大学 | A kind of underflow type Vatch basin that combined closure system is controllable |
-
2019
- 2019-02-03 CN CN201910109098.7A patent/CN109853713B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018018657A1 (en) * | 2016-07-28 | 2018-02-01 | 深圳朝伟达科技有限公司 | Rainwater sewage interception method based on membrane separation technique |
| CN109056982A (en) * | 2018-09-28 | 2018-12-21 | 中铁第四勘察设计院集团有限公司 | A kind of section dirty overflow well of confluence of rainwater and sewage irrigation canals and ditches |
| CN209686556U (en) * | 2019-02-03 | 2019-11-26 | 苏州大学 | A kind of underflow type Vatch basin that combined closure system is controllable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109853713A (en) | 2019-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208363235U (en) | A kind of overflow well controlling the pipeline flow that shuts off by floating drum and pulley | |
| CN205917828U (en) | Distribution of rain and sewage auto -change over device | |
| CN107288205B (en) | Rain and sewage terminal split-flow automatic control device | |
| CN209686556U (en) | A kind of underflow type Vatch basin that combined closure system is controllable | |
| CN105544697A (en) | Area partitioned rainwater flow distribution, storage regulation and processing system based on combined-system pipe network | |
| CN105780906B (en) | A kind of dirty exhaust system of fragment abandoned stream section | |
| CN105951689B (en) | A kind of reservoir let out in advance and ecological flow under let out structure | |
| CN105386508B (en) | Novel hydraulic automatic control initial rainwater discarding device | |
| CN219221431U (en) | Novel sewage well drainage structure for negative pressure sewage collection system | |
| CN109853713B (en) | Intercepting well and intercepting flow control method thereof | |
| CN208363234U (en) | A kind of floating drum flashboard controls the overflow well for the pipeline flow that shuts off | |
| CN112067264A (en) | System and method for testing current limiting effect of cut-off device | |
| CN205636892U (en) | Reposition of redundant personnel of regional burst rainwater, regulation and processing system based on mixed flow tubulation net | |
| CN209686557U (en) | A kind of Vatch basin with debris retaining function | |
| CN107152072B (en) | A kind of dirty method of waterpower control combined system channel section | |
| CN205822146U (en) | A kind of reservoir is let out in advance and is let out structure under double ecological flow | |
| CN212641714U (en) | Anti-backflow device | |
| CN205475652U (en) | Liu jing is abandoned to rainwater with over -and -under type rubber lamella check valve that dams | |
| CN205637027U (en) | Reposition of redundant personnel of regional burst rainwater, regulation and processing system based on confluence tubulation net | |
| CN210562502U (en) | Integrated hydraulic intercepting well | |
| CN210263319U (en) | Siphon type rainwater pipe terminal control device | |
| CN100384749C (en) | Self-adjusting dry-wet alternated parallel-operation water tank system | |
| CN210482518U (en) | Prefabricated formula floodgate that dams | |
| CN207436177U (en) | A kind of drainage system with pump row | |
| CN219773144U (en) | Wisdom reposition of redundant personnel well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |