CN216206885U - Sewage flow calibration system - Google Patents
Sewage flow calibration system Download PDFInfo
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- CN216206885U CN216206885U CN202122717889.3U CN202122717889U CN216206885U CN 216206885 U CN216206885 U CN 216206885U CN 202122717889 U CN202122717889 U CN 202122717889U CN 216206885 U CN216206885 U CN 216206885U
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Abstract
A sewage flow calibration system; the water tank comprises a first water tank and a second water tank, wherein a first water pipe is arranged at the bottom of a tank body of the first water tank, a second water pipe is arranged at the water outlet end of the first water pipe, a first gate valve and a first pipeline pump are arranged in the middle of the first water pipe, a second gate valve is arranged at the joint of the first water pipe and the second water pipe, a pressure relief groove is arranged at the water outlet end of the second water pipe, a third gate valve and an electromagnetic flow meter are arranged in the middle of the second water pipe, a third water pipe is arranged at the upper part of the other side of a groove body of the pressure relief groove, a fourth water pipe is arranged at the water outlet end of the third water pipe, a first stainless steel groove is arranged at the water outlet end of the fourth water pipe, a Parshall groove is arranged at the water outlet end of the first stainless steel groove, a second stainless steel groove is arranged at the other end of the Parshall groove, the water outlet end of the second stainless steel groove is connected with the second water tank, a fifth water pipe is arranged at the bottom of a tank body of the second water tank, and a water outlet end of the fifth water pipe is arranged at the top of the tank body of the first water tank; the problem of real-time check of various sewage flowmeters under various sewage conditions is solved.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment systems, and particularly relates to a sewage flow calibration system.
Background
At present, urban sewage discharge has many problems, most of which still adopt a combined drainage system, and the water environment pollution is caused by combined rain and sewage in flood season. Meanwhile, urban inland inundation which continuously occurs in recent years proves that most cities commonly have the problems of relatively laggard sewage pipe network, non-standard sewage pipe network design and the like, so that the phenomena of overflow, damage and the like of the sewage pipe network occur, the environment is polluted, and the pollution risk of underground water is increased. Meanwhile, the sewage pipe network has low informatization degree, so that phenomena such as running, overflowing, dripping and leaking of the pipe network cannot be found and repaired in time, and serious threat is brought to underground water.
The existing flow measurement is more used on water supply, and sewage flow monitoring is mostly concentrated on the arrangement of a water inlet and a water outlet of a sewage treatment plant. The water supply is a pressure pipe, the flow state is full pipe, and the monitoring is more accurate. However, most of the sewage is non-pressure pipes, and the sewage flows in gravity non-full pipes. Meanwhile, the sewage environment is complex, the water quantity and the water quality of the sewage can change greatly along with the drainage time, the flow velocity is closely related to the pipe diameter of the pipeline and the gradient of the pipeline, meanwhile, the situations of blockage, rubbish blocking, overflow and overflow of a well and the like also exist in the pipeline, and the monitoring error of the flow meter is large. Because the accuracy of the flow meter cannot be guaranteed, serious property loss can be caused to sewage treatment plants, enterprises or governments, and even disputes can be generated.
Along with the increasingly deepening of energy conservation and emission reduction and environmental protection work in China, the demand for monitoring the flow of sewage is increasing. How to ensure the accuracy of the sewage pipe network flow monitoring accuracy and determine the monitoring error range values of different flowmeters under different scenes is a difficult problem at the present stage.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a sewage flow calibration system which can monitor errors of a sewage flow meter under different scenes in real time by simulating variables such as pipe diameters, sewage quality, sewage flow rate and the like of different sewage pipe networks. The problem of real-time verification of various sewage flowmeters under various sewage scenes is solved.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a sewage flow calibration system comprises a first water tank and a second water tank, wherein a first water pipe is arranged at the bottom of a tank body of the first water tank, a second water pipe is arranged at the water outlet end of the first water pipe, a first gate valve and a first pipeline pump are arranged in the middle of the first water pipe, a second gate valve is arranged at the joint of the first water pipe and the second water pipe, a pressure relief groove is arranged at the water outlet end of the second water pipe, a third gate valve and an electromagnetic flow meter are arranged in the middle of the second water pipe, a third water pipe is arranged at the upper part of the other side of a groove body of the pressure relief groove, a fourth water pipe is arranged at the water outlet end of the third water pipe, a first stainless steel groove is arranged at the water outlet end of the fourth water pipe, a Bashall groove is arranged at the water outlet end of the first stainless steel groove, a second stainless steel groove is arranged at the other end of the Bashall groove, the water outlet end of the second stainless steel groove is connected with the second water tank, a fifth water pipe is arranged at the bottom of the tank body of the second water tank, and the water outlet end of the fifth water pipe is arranged at the top of the tank body of the first water tank, and a fourth gate valve, a second pipeline pump and a fifth gate valve are arranged on the fifth water pipe.
Further, the second water pipe is arranged at the lower part of the pressure relief groove body.
Further, the fourth water pipe is connected with the third water pipe through switching.
Further, the fourth water pipe is connected with the first stainless steel groove through transfer.
Furthermore, the water outlet end of the second stainless steel groove is connected above the box body of the second water tank.
Further, a probe bracket is arranged on the first Parshall tank.
Further, the first water tank function specification: the device is a high-level reservoir which stores the sewage to be monitored and ensures that the sewage flows automatically and non-pressure; the box structure: cylindrical box body, upper cover movable grid and water storage volume of 4m3。
Further, the second water tank function description: the sewage circulating monitoring device is a low-level reservoir which stores monitored sewage, and the sewage is pumped to the first water tank through the pump, so that the sewage is circularly monitored, and sewage circulation is carried out; the box structure: the upper part of the cylindrical box body is covered with a movable grid; water storage volume, 3m 3.
Further, the pressure relief groove, functional description: the water pressure is reduced, so that the water flow is more stable; simulating a real sewage flow state; the box structure: the water quality condition can be conveniently observed by using a square box body made of stainless steel, the length of the box body is 1m, the width of the box body is 0.5m, the height of the box body is 0.5m, and the upper part of the box body, which is 3mm thick, is not provided with a cover plate; water storage depth: 0.5 m.
Furthermore, all pipelines, flow meters and water pumps used in the utility model are replaceable devices. The flow corresponding to the flow meters under different pipe diameters can be measured.
Further, the throat width of the Parshall tank in the present invention can also be changed according to the corresponding flow meter to be verified.
Further, the integral gradient of the sewage treatment device can be adjusted, and the sewage flow rate is adjusted by adjusting the gradient.
Furthermore, the utility model can add impurities into the pipeline to simulate different sewage qualities.
Furthermore, the utility model can automatically control the water pump through the electric cabinet and simultaneously acquire data to the background for real-time display.
Furthermore, the utility model can collect the real-time data of each flowmeter in the background, calculate the error with the real value, and check the error in real time to make the error more approximate to the real value.
Compared with the prior art, the utility model has at least one of the following beneficial effects:
1. the utility model provides a sewage calibration system which is simpler, more convenient and more practical. The electromagnetic flowmeter is arranged between the first water tank and the pressure relief groove, and can be used as a standard value for measurement of the system due to the full pipe flow state, the ultrasonic Doppler flowmeter is arranged on the round pipe (the pipe diameter of which can be adjusted), the open channel flowmeter is arranged on the Parshall channel (the pipe diameter of which can be adjusted), sewage flow measurement and verification are carried out on different flowmeters in the pipe through the electromagnetic flowmeter, and the water pipe can be replaced and the pipe diameter and the throat width of the Parshall channel can be adjusted according to the subsequent different pipe diameter requirements.
2. The utility model can install the flow meter to be checked in the pipelines with different properties and different pipe diameters of the same water flow according to the industry standard, ensure the same sewage flow in the pipelines, eliminate the influence of other factors on the flow meter measurement, and provide guarantee for the accuracy of the check of various flow meters.
3. The utility model can change the sewage quality, simulate the sewage with different suspended matter contents and particle sizes and make a check on the measurement accuracy of the sewage flow meter under different conditions.
4. The utility model can replace the flowmeter to carry out error check. The subsequent verification result can be used as the data support of municipal, environmental and other industry governing departments or enterprises such as sewage treatment plants and the like for the health condition of the regional sewage pipe network or the sewage collection amount.
Drawings
FIG. 1 is a top view of a sewage flow calibration system;
figure 2 is a side view of the sewage flow correction system.
In the figure, the arrows indicate the direction of water flow.
In the figure, 1-first water tank; 2-a first water pipe; 3-a first gate valve; 4-a first tubing pump; 5-a second gate valve; 6-a second water pipe; 7-a third gate valve; 8-an electromagnetic flow meter; 9-a pressure relief groove; 10-a third water pipe; 11-a fourth water pipe; 12-a first stainless steel tank; 13-probe holder; 14-a Parshall cell; 15-a second stainless steel tank; 16-a second water tank; 17-a fourth gate valve; 18-a second tubing pump; 19-a fifth gate valve; 20-fifth water pipe.
Detailed Description
As shown in fig. 1-2, in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Example 1
A sewage flow calibration system comprises a first water tank 1 and a second water tank 16, wherein a first water pipe 2 is arranged at the bottom of a tank body of the first water tank 1, a second water pipe 6 is arranged at the water outlet end of the first water pipe 2, a first gate valve 3 and a first pipeline pump 4 are arranged in the middle of the first water pipe 6, a second gate valve 5 is arranged at the joint of the first water pipe 2 and the second water pipe 6, a pressure relief groove 9 is arranged at the water outlet end of the second water pipe 6, a third gate valve 7 and an electromagnetic flow meter 8 are arranged in the middle of the second water pipe 6, a third water pipe 10 is arranged at the upper part of the other side of a groove body 9 of the pressure relief groove, a fourth water pipe 11 is arranged at the water outlet end of the third water pipe 10, a first stainless steel groove 12 is arranged at the water outlet end of the fourth water pipe 11, a second stainless steel groove 14 is arranged at the water outlet end of the first stainless steel groove 12, a second stainless steel groove 15 is arranged at the other end of the Baal steel groove 14, the water outlet end of the second stainless steel groove 15 is connected with the second water tank 16, a fifth water pipe 20 is arranged at the bottom of the box body of the second water tank 16, the water outlet end of the fifth water pipe 20 is arranged at the top of the box body of the first water tank 1, and a fourth gate valve 17, a second pipeline pump 18 and a fifth gate valve 19 are arranged on the fifth water pipe 20; the utility model provides a sewage calibration system which is simpler, more convenient and more practical. The utility model installs an electromagnetic flowmeter at the front end of the pipeline, as a standard value for the system to measure, installs ultrasonic Doppler flowmeters on DN400 and DN500 pipelines, installs open channel flowmeters on a Barchel groove with a throat width of 25mm, and measures and verifies the sewage flow by different flowmeters in the pipeline through the electromagnetic flowmeter.
The second water pipe 6 is arranged at the lower part of the pressure relief groove 9;
the fourth water pipe 11 is connected with the third water pipe 10 through switching, the fourth water pipe 11 is connected with the first stainless steel groove 12 through switching, the water pipe can be replaced corresponding to different pipe diameter requirements subsequently, and the pipe diameter size and the throat width of the Parshall groove can be adjusted.
The water outlet end of the second stainless steel groove 15 is connected above the box body of the second water tank 16;
the Parshall tank 14 is provided with a probe bracket 13;
the utility model can install the flow meter to be checked in the pipelines with different pipe diameters of the same water flow according to the industry standard, ensure the same sewage flow passing through the pipelines, eliminate the influence of other factors on the flow meter measurement, and provide guarantee for the accuracy of the check of various flow meters; the utility model can change the sewage condition, simulate the sewage with different suspended matter contents and particle sizes, and can make a check for the measurement accuracy of the sewage flow meters under different conditions; the utility model can replace the flowmeter to carry out error check; the subsequent verification result can be used as the data support of municipal, environmental and other industry governing departments or enterprises such as sewage treatment plants and the like for the health condition of the regional sewage pipe network or the sewage collection amount. Example 2
The first water tank 1 is a stainless steel water tank having a capacity of 4m3 as a system water supply tank. The first water pipe 2 is a PE pipe with the pipe diameter of 80mm, the first gate valve 3 and the first pipeline pump 4 are connected through a rubber soft joint, and the third pipeline pump 4 is connected with the second water pipe 6 behind the first water pipe 2. The second water pipe is a PE pipe with the pipe diameter of 65mm, and an electromagnetic flowmeter 8 and a third gate valve 7 are installed in the middle of the second water pipe. The pressure relief groove 9 is a stainless steel water tank with the length of 1m, the width of 0.5m and the height of 0.5m, the front end of the pressure relief groove is connected with the second water pipe 6, and the pressure relief groove is used for stabilizing the flow rate of sewage and reducing water pressure. The front end of the third water pipe 10 is connected with the pressure relief groove 9 and is a steel pipe with the radius of 500mm and the length of 2.5 m. The front end of the fourth water pipe 11 is connected with the third water pipe 10, and is a steel pipe with the radius of 400mm and the length of 2.5 m. The first stainless steel tank 12 is connected to the fourth water pipe 11, and is a water tank having a length of 2m, a width of 0.3m and a height of 0.25m, and serves as a water passing tank of the Parshall tank 14. The Parshall slot throat width is 25 mm. The first stainless steel tank 12 is connected in front of the Parshall tank 14, the second stainless steel tank 15 is connected in back, a probe bracket 13 is arranged above the tanks, and an open channel flowmeter is arranged. The second stainless steel tank 12 is a stainless steel tank 2.5m long, 0.3m wide and 0.25m high, followed by a second water tank 16 of 3m3 capacity as a water tank for storing sewage.
The fifth water pipe 20 is a PE pipe with a pipe diameter of 80mm, and is connected to the second water tank 16, and a fourth gate valve 17, a second pipe pump 18, and a fifth gate valve 19 are connected in the middle.
The working process of the utility model is as follows:
the sewage flows out through the first water tank 1, flows through the first water pipe 2 and the second water pipe 7 and flows to the pressure relief groove 9. On the way, sewage flows through the electromagnetic flowmeter and flows in the water pipe in a full pipe mode, and the flow is recorded by the electromagnetic flowmeter and serves as the basis of sewage flow verification. The pressure relief groove 9 can relieve the water pressure, so that the water flow enters the third water pipe 10 more stably. The sewage flows through the third water pipe 10, the fourth water pipe 11, the first stainless steel 12, the Parshall tank 14, the second stainless steel tank 15, and then flows into the second water tank 16. The second water tank 16 is used as a water storage tank, a liquid level meter is arranged in the water tank, when the water level reaches a set range, the second pipeline pump 19 is started, sewage is pumped to the first water tank 1 through the fifth water pipe 20, water circulation is completed, recycling of the sewage is achieved, and water resources are saved to the maximum extent. Meanwhile, data collected by each flowmeter can be collected to a background in real time, and error analysis and verification are carried out on the data.
The water level inside the pipe network can be adjusted through the first gate valve 3, the second gate valve 5 and the third gate valve 7.
Can open first tubing pump 4, increase the inside water pressure of pipeline, increase the inside sewage velocity of flow of pipeline, ensure simultaneously that the second water pipe is full pipe pressure pipe, guarantee the accuracy of the electromagnetic flowmeter as the benchmark.
Full-pipe flowmeters, such as vortex shedding flowmeters and the like, can be added in the middle sections of the first water pipe 2 and the second water pipe 7 to check the full-pipe flowmeters.
The error of a non-full pipe flowmeter such as an ultrasonic doppler flowmeter can be installed in the third water pipe 10 and the fourth water pipe 11 for verification.
An open channel flow meter can be mounted on the probe bracket 13 to verify the open channel flow meter.
The marshall tank can be replaced by a different weir tank such as a triangular weir, a rectangular weir, etc. and the open channel flowmeter can be verified.
The integral gradient of the sewage treatment device can be adjusted, and the sewage flow rate is adjusted by adjusting the gradient.
The pipelines in the utility model can be detached and replaced, so that the pipelines can be cleaned and the pipe diameters can be replaced for verification.
The utility model is externally provided with a first electric cabinet which can supply power for a pipeline pump and various flowmeters, and the function specification is as follows: the various flow meters and the pipeline pumps provide power supplies and can automatically control the sewage flow correction system. The box structure: the box body is supported by a stand column at the bottom and is provided with a movable door which can be locked at the front.
It can be controlled in conjunction with the level gauge in the second tank 16, when the liquid level in the second tank 16 is too high, the second pipe pump 19 is turned on to pump water to the first tank 1, until the liquid level in the second tank 16 is pumped to the lowest level set by the level gauge, and the pumping is stopped.
The meter head and the RTU are arranged in the second electric control box, so that data such as sewage flow can be collected in real time and transmitted to the background through the RTU for display, and the box body structure is as follows: the box body is supported by a stand column at the bottom and is provided with a movable door which can be locked at the front.
The background can summarize the data collected by each flowmeter and summarize the data, and compare the actual measured flow of each flowmeter with the real flow data, because the error of the electromagnetic flowmeter 8 is very small under the condition of full pipe, the flow data measured by the electromagnetic flowmeter can be used as the check reference to compare with the actual measured flow, and the error coefficient between the two is calculated. And the error is subjected to self-adaptive check by using an algorithm, so that the error is eliminated as much as possible and is closer to real flow data.
Although the utility model has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (8)
1. The utility model provides a sewage flow check-up system which characterized in that: comprises a first water tank (1) and a second water tank (16), wherein a first water pipe (2) is arranged at the bottom of the tank body of the first water tank (1), a second water pipe (6) is arranged at the water outlet end of the first water pipe (2), a first gate valve (3) and a first pipeline pump (4) are arranged in the middle of the first water pipe (2), a second gate valve (5) is arranged at the joint of the first water pipe (2) and the second water pipe (6), a pressure relief groove (9) is arranged at the water outlet end of the second water pipe (6), a third gate valve (7) and an electromagnetic flow meter (8) are arranged in the middle of the second water pipe (6), a third water pipe (10) is arranged at the upper part of the other side of the groove body of the pressure relief groove (9), a fourth water pipe (11) is arranged at the water outlet end of the third water pipe (10), a first stainless steel groove (12) is arranged at the water outlet end of the fourth water pipe (11), a Barschel groove (14) is arranged at the water outlet end of the first stainless steel groove (12), the other end of the Bashall groove (14) is provided with a second stainless steel groove (15), the water outlet end of the second stainless steel groove (15) is connected with a second water tank (16), the bottom of the second water tank (16) is provided with a fifth water pipe (20), the water outlet end of the fifth water pipe (20) is arranged at the top of the first water tank (1), and the fifth water pipe (20) is provided with a fourth gate valve (17), a second pipeline pump (18) and a fifth gate valve (19).
2. The sewage flow verification system of claim 1, wherein: the second water pipe (6) is arranged at the lower part of the pressure relief groove (9).
3. The sewage flow verification system of claim 1, wherein: the fourth water pipe (11) is connected with the third water pipe (10) through switching.
4. The sewage flow verification system of claim 1, wherein: the fourth water pipe (11) is connected with the first stainless steel groove (12) through switching.
5. The sewage flow verification system of claim 1, wherein: the water outlet end of the second stainless steel groove (15) is connected above the box body of the second water tank (16).
6. The sewage flow verification system of claim 1, wherein: the Parshall tank (14) is provided with a probe bracket (13).
7. The sewage flow verification system of claim 1, wherein: the first water tank (1) is 4m3。
8. The sewage flow verification system of claim 1, wherein: the second water tank (16) is 3m3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122717889.3U CN216206885U (en) | 2021-11-08 | 2021-11-08 | Sewage flow calibration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122717889.3U CN216206885U (en) | 2021-11-08 | 2021-11-08 | Sewage flow calibration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216206885U true CN216206885U (en) | 2022-04-05 |
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ID=80905326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122717889.3U Active CN216206885U (en) | 2021-11-08 | 2021-11-08 | Sewage flow calibration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216206885U (en) |
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2021
- 2021-11-08 CN CN202122717889.3U patent/CN216206885U/en active Active
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