CN211262372U - Graded measurement type flow monitoring well - Google Patents
Graded measurement type flow monitoring well Download PDFInfo
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- CN211262372U CN211262372U CN202020213091.8U CN202020213091U CN211262372U CN 211262372 U CN211262372 U CN 211262372U CN 202020213091 U CN202020213091 U CN 202020213091U CN 211262372 U CN211262372 U CN 211262372U
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Abstract
The utility model relates to a hierarchical measurement formula flow monitoring well belongs to pipeline flow measurement technical field, its include with the inlet tube intercommunication intake the district and with the water drainage district of outlet pipe intercommunication, in the downstream side of intake the district reaches water drainage district's upper reaches side sets up two first partition walls and the second partition wall that are parallel to each other along the facade respectively, be formed with hierarchical flow measurement district between first partition wall and the second partition wall, along the many internal diameters of horizontal direction parallel arrangement inequality flow measurement pipe in it, the both ends of every flow measurement pipe respectively with intake district, water drainage district intercommunication, be equipped with valve and flowmeter on the every flow measurement pipe, intake the district including bed hedgehopping district, be equipped with ultrasonic wave level gauge, current meter and water quality monitoring instrument in the bed hedgehopping district. The utility model relates to a rationally, compact structure, convenient operation. The problem of among the prior art rain volume when too little pipeline is inside can't the full flow, lead to the unable accurate measurement of flowmeter is solved.
Description
Technical Field
The utility model relates to a hierarchical measurement formula flow monitoring well belongs to pipeline flow measurement technical field.
Background
At present, the measuring pipeline flow of the electromagnetic flowmeter is a simple, accurate and effective pipeline measuring mode. The premise of effective flow measurement is that the pipeline is in a full flow state, and is generally suitable for the measurement of a pressure pipeline. Because the flow of the gravity type pipeline is not constant, a stable full-flow state cannot be created for the flowmeter, and therefore the accuracy of metering the gravity type pipeline such as rainwater, sewage and the like by using the electromagnetic flowmeter is not high.
Rainwater in cities is usually collected through the ground, and the rainwater is collected by the gravity pipeline and finally flows into a river channel, so that the data of the quality and the quantity of the rainwater is difficult to be recorded in detail, and the data are basically in a blank state. Along with the trend of more and more refined management of cities, a plurality of city management departments require that a flow meter is arranged at a river inlet of a rainwater pipeline to monitor data such as river rainwater flow and the like. However, the rainfall amount is changed in a parabolic manner along with the duration of rainfall, and the rainfall amount is changed in seasons in a large or small manner, which brings great difficulty to measurement. At present, an effective, accurate and flexible measuring device and a measuring method are still lacked.
Disclosure of Invention
The utility model aims at providing a hierarchical measurement formula flowmeter well can effectual solution present gravity-type pipeline flow such as rainwater pipeline be difficult to the problem of accurate measurement.
In order to solve the above problems, the present invention provides a graded measurement type flow monitoring well, which comprises a water inlet area communicated with a water inlet pipe and a water outlet area communicated with a water outlet pipe, wherein two parallel first partition walls and second partition walls are respectively arranged along a vertical surface on the downstream side of the water inlet area and the upstream side of the water outlet area, a graded flow measurement area is formed between the first partition wall and the second partition wall, a plurality of flow measurement pipes with different inner diameters are arranged in parallel along a horizontal direction in the graded flow measurement area, two ends of each flow measurement pipe are respectively communicated with the water inlet area and the water outlet area, each flow measurement pipe is provided with a valve and a flowmeter, the water inlet area comprises a block-up area, and an ultrasonic liquid level meter, a flow velocity meter and a water quality monitoring instrument are arranged in the block-up area.
Furthermore, the flow measuring pipes are provided with a plurality of pipes, the pipe diameters of the plurality of flow measuring pipes are reduced in sequence, and the pipe diameter of the water inlet pipe is larger than or equal to the largest pipe diameter of the plurality of flow measuring pipes.
Furthermore, the bottom of the first heightening area is provided with a first heightening part which is heightened upwards, and the top surface of the first heightening part is flush with the bottom surface of the water inlet pipe.
Furthermore, the width of the first heightening area in the direction perpendicular to the water flow is the same as the pipe diameter of the water inlet pipe, a second heightening area extends towards the graded flow measuring area from the first heightening area, a second heightening part is arranged at the bottom of the second heightening area, and the top surface of the second heightening part is flush with the bottom surface of the flow measuring pipe.
Furthermore, the first block-up area and the second block-up area are divided by a third partition wall arranged at intervals along the width direction, and the top of the third partition wall extends to the position of the top plate of the monitoring well.
Furthermore, a bypass area is arranged between the grading flow measurement area and the top plate, one side of the bypass area is communicated with the drainage area through an overflowing hole formed in the second partition wall, and a bypass gate is arranged between the other side of the bypass area and the heightening area.
Compared with the prior art, the utility model has the advantages that:
the utility model relates to a rationally, compact structure, convenient operation. The problem of among the prior art rain volume when too little pipeline is inside can't the full flow, lead to the unable accurate measurement of flowmeter is solved. According to the rainfall, the flow Q of the incoming water can be roughly calculated by the ultrasonic liquid level meter and the flow velocity meter which are arranged at the front section and used as a judgment basis for rear-end graded measurement and monitoring, and the flow meters on the flow measuring tubes corresponding to Q are opened in a graded mode, so that the flow measuring tubes are in a full-flow state, and the measurement accuracy is guaranteed; meanwhile, the invention is provided with the water quality detector, so that pollutants in rainwater can be continuously monitored. By matching with accurately measured flow data, the river entering amount of each pollutant in each rainfall process can be accurately calculated, a basis is provided for the treatment of pollutants in the rainwater in the subsequent initial stage, and powerful data support is provided for the fine management of the urban water environment.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a sectional view taken along line I-I in fig. 1.
Description of reference numerals:
1-water inlet pipe, 2-ultrasonic liquid level meter, 3-flow rate meter, 4-water quality monitoring instrument, 5-bypass gate, 6-flow measuring pipe, 7-first partition wall, 8-first filling-up part, 9-water inlet area, 10-bypass area, 11-water discharge area, 12-water outlet pipe, 13-second filling-up part, 14-second partition wall, 15-grading flow measuring area, 16-top plate, 17-third partition wall, 101-overflowing hole, 131-cover plate, 61-valve, 62-flowmeter, 91-filling-up first area and 92-filling-up second area.
Detailed Description
The invention will be further described with reference to the embodiments shown in the drawings to which:
as shown in fig. 1 to 2, a graded measurement type flow monitoring well comprises a water inlet area 9 communicated with a water inlet pipe 1 and a water discharge area 11 communicated with a water outlet pipe 12, wherein two parallel first partition walls 7 and second partition walls 14 are respectively arranged along the vertical surface at the downstream side of the water inlet area 9 and the upstream side of the water discharge area 11, a graded flow measurement area 15 is formed between the first partition wall 7 and the second partition wall 14, a plurality of flow measuring tubes 6 with different inner diameters are arranged in parallel along the horizontal direction in the water inlet area, the two ends of each flow measuring tube 6 are respectively communicated with the water inlet area 9 and the water discharge area 11, each flow measuring tube 6 is provided with a valve 61 and a flowmeter 62, the top of the graded current measuring area 15 is provided with a cover plate 131 for convenient maintenance, the water inlet area 9 comprises a padding first area 91, an ultrasonic liquid level meter 2, a flow velocity meter 3 and a water quality monitoring instrument 4 are arranged in the heightening first area 91.
Furthermore, the flow measuring pipes 6 are provided with a plurality of pipes, the pipe diameters of the plurality of flow measuring pipes 6 are reduced in sequence, and the pipe diameter of the water inlet pipe 1 is larger than or equal to the largest pipe diameter of the plurality of flow measuring pipes 6.
Furthermore, the bottom of the first bed-up area 91 is provided with a first bed-up portion 8 which is upward bed-up, and the top surface of the first bed-up portion is flush with the bottom surface of the water inlet pipe 1, so that the measurement liquid level of the ultrasonic liquid level meter 2 is consistent with the liquid level in the water inlet pipe 1, and the accuracy of estimating the flow Q is improved.
Furthermore, the width of the first heightening area 91 in the direction perpendicular to the water flow is the same as the pipe diameter of the water inlet pipe 1, the second heightening area 92 extends from the first heightening area 91 to the grading flow measurement area 15, and the second heightening part 13 is arranged at the bottom of the second heightening area 92, and the top surface of the second heightening part is flush with the bottom surface of the flow measurement pipe 6, so that the water flow is ensured to enter the flow measurement pipe 6 in a direct connection manner, and the water congestion is avoided.
Further, the first raised area 91 and the second raised area 92 are divided by third partition walls 17 arranged at intervals in the width direction, and the tops of the third partition walls 17 extend to the position of the top plate 16 of the monitoring well.
Further, a bypass area 10 is arranged between the graded current measuring area 15 and the top plate 16, one side of the bypass area 10 is communicated with the drainage area 11 through an overflowing hole 101 arranged on the second partition wall 14, and a bypass gate 5 is arranged between the other side of the bypass area 10 and the second raised area 92.
A flow measurement method of a graded measurement type flow monitoring well comprises the following steps:
s1: monitoring well and raw data preparation
At first utilize hierarchical measurement formula flow monitoring well, its include with inlet tube 1 intercommunication intake district 9 and with the water drainage zone 11 of outlet pipe 12 intercommunication, in the downstream side of intake district 9 reaches water drainage zone 11's upstream side sets up two first partition walls 7 and the second partition wall 14 that are parallel to each other along the facade respectively, be formed with hierarchical survey district 15 between first partition wall 7 and the second partition wall 14, along the many different survey flow tubes 6 of internal diameter of horizontal direction parallel arrangement in it, every both ends of surveying flow tube 6 respectively with intake district 9, water drainage zone 11 intercommunication, be equipped with valve 61 and flowmeter 62 on every survey flow tube 6, intake district 9 is including bed hedgehopping district 91, be equipped with ultrasonic wave level gauge 2, velocity of flow meter 3 and water quality monitoring instrument 4 in bed hedgehopping district 91.
Three flow measuring pipes 6 with different inner diameters are arranged in the grading flow measuring area 15 in parallel along the horizontal direction;
the pipe diameter of the water inlet pipe 1 is D, the pipe diameters of the three flow measuring pipes 6 are D3, D2 and D1 from large to small,
the maximum flow measurement rates of the three flow measurement tubes are Q3, Q2 and Q1 respectively, wherein the flow measurement range of the flow measurement tube with the tube diameter of D3 is Q3-Q2, the flow measurement range of the flow measurement tube with the tube diameter of D2 is Q2-Q1, the flow measurement range of the flow measurement tube with the tube diameter of D1 is Q1-Q0, Q3 is more than Q2 is more than Q1 is more than Q0, and Q0 represents that the flow is zero;
s2: water inflow estimation
The ultrasonic level meter 2 and the flow rate meter 3 are used to read the liquid level h and the flow rate v of the first raising area 91, and the water inlet flow Q can be roughly calculated by using Q ═ h × v × d, where h is the water passing section liquid level, v ═ flow rate, and d ═ water passing section width.
S3: valve control and water flow detection and recording
If Q belongs to Q3-Q2, the flow measuring pipe valve 61 with the pipe diameter of D3 is opened, the valves of the other two flow measuring pipes are in a closed state, and the flow is continuously monitored and recorded by using the flow meter 62.
If Q belongs to Q2-Q1, the flow measuring pipe valve 61 with the pipe diameter of D2 is opened, the valves of the other two flow measuring pipes are in a closed state, and the flow is continuously monitored and recorded by using the flow meter 62.
If Q belongs to Q1-Q0, the flow measuring pipe valve 61 with the pipe diameter of D1 is opened, the valves of the other two flow measuring pipes are in a closed state, and the flow is continuously monitored and recorded by using the flow meter 62.
S4: emergency treatment procedure
If the valve 61 and the flowmeter 62 of the flow measuring pipe 6 are out of order, the bypass gate 5 is opened for maintenance and replacement.
The working process of the utility model is as follows:
when the rainfall is small, the estimated flow Q reaches the flow measuring range of the flow measuring pipe 6 with the pipe diameter of D1, the flow measuring pipe can be full flow, at the moment, the PLC control circuit opens the valve 61 on the flow measuring pipe 6 with the pipe diameter of D1, and then the flow measurement is started continuously.
When the rainfall is gradually increased and the estimated flow Q reaches the flow measuring range of the flow measuring pipe with the pipe diameter of D2, the flow measuring pipe can be full flow, at the moment, the PLC control circuit closes the valve 61 of the flow measuring pipe 6 with the pipe diameter of D1, simultaneously opens the valve 61 on the flow measuring pipe 6 with the pipe diameter of D2, and then the flow metering is continuously started.
When the rainfall is larger, the upstream water inlet pipe 1 is even full, and the flow rate reaches the measuring range of the flow measuring pipe with the pipe diameter of D3, the PLC control circuit closes the valve 61 of the flow measuring pipe 6 with the pipe diameter of D2, and simultaneously opens the valve 61 on the flow measuring pipe 6 with the pipe diameter of D3, and the maximum flow meter is used for measuring the rainfall.
When the rainfall is reduced at the end of the rainfall, the control process can be carried out reversely through the PLC control circuit until the rainfall stops, and the flow of the water inlet pipe 1 is 0.
Through simple PLC control circuit programming, can calculate and gather the flow that the inlet tube passed through in the rainfall time, combine quality of water data, can analyze out rainwater flow variation curve, pollutant concentration and pollutant total amount change curve with time, calculate important data such as total pollutant income river volume.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. The utility model provides a hierarchical measurement formula flow monitoring well which characterized in that: comprises a water inlet area (9) communicated with a water inlet pipe (1) and a water drainage area (11) communicated with a water outlet pipe (12), wherein two first partition walls (7) and two second partition walls (14) which are parallel to each other are respectively arranged on the downstream side of the water inlet area (9) and the upstream side of the water drainage area (11) along the vertical surface, a graded flow measuring area (15) is formed between the first partition wall (7) and the second partition wall (14), a plurality of flow measuring tubes (6) with different inner diameters are arranged in parallel along the horizontal direction in the water inlet pipe, both ends of each flow measuring tube (6) are respectively communicated with the water inlet area (9) and the water discharge area (11), a valve (61) and a flowmeter (62) are arranged on each flow measuring tube (6), the water inlet area (9) comprises a block-up area (91), and an ultrasonic liquid level meter (2), a flow velocity meter (3) and a water quality monitoring instrument (4) are arranged in the block-up area (91).
2. The graded measurement flow monitoring well of claim 1, wherein: the pipe diameters of the plurality of flow measuring pipes (6) are reduced in sequence, wherein the pipe diameter of the water inlet pipe (1) is larger than or equal to the largest pipe diameter of the plurality of flow measuring pipes (6).
3. The graded measurement flow monitoring well of claim 1, wherein: the bottom of the first heightening area (91) is provided with a first heightening part (8) which is heightened upwards, and the top surface of the first heightening part is flush with the bottom surface of the water inlet pipe (1).
4. The graded measurement flow monitoring well of claim 1, wherein: the width of the first heightening area (91) in the direction perpendicular to the water flow is the same as the pipe diameter of the water inlet pipe (1), a second heightening area (92) extends towards the grading flow measuring area (15) from the first heightening area (91), a second heightening part (13) is arranged at the bottom of the second heightening area (92), and the top surface of the second heightening part is flush with the bottom surface of the flow measuring pipe (6).
5. The graded measurement flow monitoring well according to claim 4, characterized in that: the first heightening area (91) and the second heightening area (92) are divided by third partition walls (17) arranged at intervals along the width direction, and the tops of the third partition walls (17) extend to the positions of the top plates (16) of the monitoring wells.
6. The graded measurement flow monitoring well of claim 1, wherein: be provided with bypass district (10) between hierarchical survey district (15) and roof (16), one side of bypass district (10) is through setting up discharge orifice (101) and the water drainage district (11) intercommunication on second partition wall (14), is equipped with a bypass gate (5) between the opposite side of bypass district (10) and bed hedgehopping two districts (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020213091.8U CN211262372U (en) | 2020-02-26 | 2020-02-26 | Graded measurement type flow monitoring well |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020213091.8U CN211262372U (en) | 2020-02-26 | 2020-02-26 | Graded measurement type flow monitoring well |
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| CN211262372U true CN211262372U (en) | 2020-08-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857506A (en) * | 2022-04-19 | 2022-08-05 | 武汉新烽光电股份有限公司 | A standard monitoring well for pipe network current surveying |
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2020
- 2020-02-26 CN CN202020213091.8U patent/CN211262372U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857506A (en) * | 2022-04-19 | 2022-08-05 | 武汉新烽光电股份有限公司 | A standard monitoring well for pipe network current surveying |
| CN114857506B (en) * | 2022-04-19 | 2023-03-03 | 武汉新烽光电股份有限公司 | A standard monitoring well for pipe network current surveying |
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Address after: 214072 West floor, Lianchuang building, 901-2 yinxiu Road, Binhu District, Wuxi City, Jiangsu Province Patentee after: Huaxin Design Group Co.,Ltd. Address before: 214072 West floor, Lianchuang building, 901-2 yinxiu Road, Binhu District, Wuxi City, Jiangsu Province Patentee before: WUXI MUNICIPAL DESIGN INSTITUTE Co.,Ltd. |