CN113756394A - Water supply network pressure management system performance testing device and method based on pressure reducing valve - Google Patents
Water supply network pressure management system performance testing device and method based on pressure reducing valve Download PDFInfo
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- CN113756394A CN113756394A CN202111185493.7A CN202111185493A CN113756394A CN 113756394 A CN113756394 A CN 113756394A CN 202111185493 A CN202111185493 A CN 202111185493A CN 113756394 A CN113756394 A CN 113756394A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 148
- 238000012360 testing method Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims description 26
- 230000035945 sensitivity Effects 0.000 claims abstract description 27
- 230000000694 effects Effects 0.000 claims abstract description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 5
- 238000009530 blood pressure measurement Methods 0.000 claims description 3
- 238000011056 performance test Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/003—Arrangement for testing of watertightness of water supply conduits
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons, valves, in the pipe systems
- E03B7/072—Arrangement of flowmeters
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons, valves, in the pipe systems
- E03B7/075—Arrangement of devices for control of pressure or flow rate
Abstract
The invention relates to the field of municipal water supply, and discloses a water supply network pressure management system performance testing device based on a pressure reducing valve, which comprises: the water pool (1) is communicated with a main water inlet pipe (7) through two pipelines, and the main water inlet pipe (7) is communicated with a pipe network (13); the two pipelines are sequentially provided with a manual valve (3), a pool booster pump (2), a check valve (5) and an electric valve (6), and the front and the back of the pool booster pump (2) are respectively provided with a soft joint (4); the main water inlet pipe (7) is provided with a pressure reducing valve (8) and a first electromagnetic flowmeter (91); the pipe network draws forth a return water pipeline (12) and is connected to pond (1), be equipped with electric valve (6) and second electromagnetic flowmeter (92) on return water pipeline (12), test pressure regulation accuracy nature, sensitivity, the stability of the pressure management system based on the relief pressure valve, verify the control effect of system leakage.
Description
Technical Field
The invention relates to the field of municipal water supply, in particular to a device and a method for testing the performance of a water supply network pressure management system based on a pressure reducing valve.
Background
Along with the rapid increase and decrease of urban population and the rapid development of urban construction, water resources are increasingly in short supply, the water supply cost is continuously improved, however, the leakage of a water supply network causes a large amount of waste of the water resources, and the economic loss of the water supply industry is huge. The leakage of the water supply network refers to the phenomenon that water is wasted because a part of water flows out of a pipeline in the process of conveying water in a water supply pipeline due to the breakage of pipeline parts such as a pipe body, an accessory, a connector and the like or the leakage of an adjusting structure. The leakage rate of the pipe network is effectively controlled, and the practical guarantee of the urban water supply efficiency becomes a vital task in the water supply industry. Pressure management is one of important methods for solving the problems of uneven pressure distribution, serious leakage and other hot spots of the urban water supply network. Through the means of pressure management, make regional water supply service pressure balance, realize intelligent fine management, bring comprehensive benefit for water supply network optimization operation. The pressure control has the advantages of balancing the pressure of the pipe network, optimizing the operation of the pipe network, reducing water leakage accidents, improving the comfort level of water consumption, saving water resources and the like. The water supply network management is also a long-term operation and maintenance process, the service life of the water supply network can be prolonged through the optimized operation of pressure, and the economical efficiency of the use of the pipeline network assets is improved.
With the development of pressure management technology, a plurality of pressure management systems (pressure reducing valves and control platforms) based on pressure reducing valves are generated, and due to the fact that water supply is relevant to the civilian, performance evaluation needs to be carried out on the systems before the systems are applied, and water supply safety is guaranteed. Therefore, a performance evaluation device and method based on a pressure management system of a pressure reducing valve are needed to meet the development requirements of the current water supply industry and guarantee the safety of urban water supply.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a device and a method for testing the performance of a pressure management system of a water supply pipe network based on a pressure reducing valve.
In order to achieve the above object, the present invention provides a performance testing apparatus for a pressure management system of a water supply pipe network based on a pressure reducing valve, comprising:
the water tank is communicated with a main water inlet pipe through two pipelines, and the main water inlet pipe is communicated with a pipe network;
the two pipelines are sequentially provided with a manual valve, a pool booster pump, a check valve and an electric valve, and the front and the back of the pool booster pump are respectively provided with a soft joint;
the water tank booster pump is used for supplying water to the whole pipe network in a pressurized mode, the soft joint and the check valve are used for preventing water from flowing backwards, and normal work of the water tank booster pump is guaranteed.
The main water inlet pipe is provided with a pressure reducing valve and a first electromagnetic flowmeter, the first electromagnetic flowmeter is used for metering the total water supply amount, and the pressure reducing valve is used for adjusting the water supply pressure;
a water return pipeline is led out from the pipe network and connected to the water pool to simulate water use of a user;
be equipped with electric valve and second electromagnetic flow meter on the return water pipeline, the second electromagnetic flow meter is used for measuring total water consumption.
Preferably, any position of the pipe network is provided with a plurality of water taps for simulating leakage points of the pipe network.
Preferably, a water meter is arranged in front of the faucet and used for measuring leakage flow and water leakage.
Preferably, the first electromagnetic flowmeter is disposed behind a valve of the pressure reducing valve to meter a total water supply amount.
Preferably, any position of the pipe network is provided with a plurality of manual valves, electric valves and electromagnetic flow meters.
The electric valve is used for controlling water inlet and outlet of the pipe network and water supply independence among the pipelines, and the manual valve is used for ensuring safe water supply.
Preferably, the first electromagnetic flow meter, the second electromagnetic flow meter and the electromagnetic flow meter are all electromagnetic flow meters with pressure measurement functions, and are used for measuring flow and pressure in a pipeline.
In order to achieve the above object, the present invention further provides a method for testing the performance of a pressure management system of a water supply pipe network based on a pressure reducing valve, which comprises the following steps:
selecting the performance to be tested for the pressure management system, wherein the performance comprises the pressure regulation accuracy and sensitivity, the pressure stabilizing effect of the pressure management system and the leakage control effect of the pressure management system on a water supply network;
if the pressure regulation accuracy and sensitivity are tested, selecting the working condition of the performance testing device for performance testing, wherein the working condition comprises a conventional working condition, a working condition for ensuring accuracy and a working condition for pressure change, setting the pressure of the pressure reducing valve, comparing the difference between the actual pressure and the set pressure through data displayed by an electromagnetic flowmeter, and testing the pressure regulation accuracy; testing the sensitivity of pressure adjustment according to the speed of the actual pressure reaching the set pressure;
step three, if the pressure stabilizing effect of the pressure management system is tested, the pressure behind a pressure reducing valve in the performance testing device is kept unchanged, the pressure in front of the valve of the pool booster pump is adjusted for multiple times, and the pressure stabilizing effect is tested through pressure data displayed by the electromagnetic flowmeter;
and step four, if the leakage control effect of the pressure management system on the water supply pipe network is tested, the pressure behind the pressure reducing valve is adjusted by simulating a pipe network leakage point through a water tap in the pipe network, the relation between the pressure and the leakage is determined through flow data displayed by an electromagnetic flowmeter, and the leakage reduction amount before and after the pressure management system is used is tested.
Further, in step two, the testing method of the normal operating condition is as follows: according to the actual water supply pressure condition and the pressure requirement of a city, pressure parameters are controlled after a pressure reducing valve of a pressure management system is arranged, the difference between the actual pressure and the set pressure is compared, and the pressure regulation accuracy and sensitivity are evaluated according to the difference between the actual pressure and the set pressure after the pressure reducing valve and the speed of regulating the actual pressure to the set pressure.
Further, in step two, the test method for ensuring the accuracy working condition includes: under the condition that the pressure management system ensures the accuracy, the minimum range requirement is set on the pressure of adjacent time nodes, and the pressure change of the pressure reducing valve of the adjacent time nodes is controlled by 1mH2And starting to gradually increase the set pressure value, and accurately adjusting the pressure to the set value according to whether the pressure reducing valve is on time or not to evaluate the pressure adjustment sensitivity.
Further, in step two, the method for testing the pressure variation condition includes: the pressure management system sets a plurality of adjusting time points when the high-frequency large-amplitude pressure changes, the adjusting time points are all different pressure values, and the pressure changes of the adjacent time points are larger than 5mH2And O, evaluating the accuracy and sensitivity of pressure regulation according to the difference between the actual pressure after the pressure reducing valve and the set pressure and the speed of regulating the actual pressure to the set pressure.
Compared with the prior art, the performance testing device and method for the water supply network pressure management system based on the pressure reducing valve provide suggestions for selection and application of the pressure management system in urban pressure management for enterprises, achieve energy conservation and leakage reduction, reduce the pipe explosion probability of the water supply network, and guarantee the urban water supply safety.
Drawings
FIG. 1 is a schematic structural diagram of a performance testing device of a pressure management system of a water supply pipe network based on a pressure reducing valve according to the present invention;
FIG. 2 is a flow chart illustrating the steps of a method for testing the performance of a pressure management system of a water supply network based on a pressure reducing valve according to the present invention.
In the figure: 1. a pool; 2. a pool booster pump; 3. a manual valve; 4. a soft joint; 5. a check valve; 6. an electrically operated valve; 7. a main water inlet pipe; 8. a pressure reducing valve; 9. an electromagnetic flow meter; 91. a first electromagnetic flow meter; 92. a second electromagnetic flow meter; 10. a faucet; 11. a water meter; 12. a water return pipe; 13. pipe network.
Detailed Description
Other advantages and capabilities of the present invention will be readily apparent to those skilled in the art from the present disclosure by describing the embodiments of the present invention with specific embodiments thereof in conjunction with the accompanying drawings. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention.
FIG. 1 is a schematic structural diagram of a device for testing the performance of a pressure management system of a water supply network based on a pressure reducing valve according to the present invention. As shown in FIG. 1, the invention relates to a performance testing device for a pressure management system of a water supply pipe network based on a pressure reducing valve, which comprises:
the water pool 1 is communicated with a main water inlet pipe 7 through two pipelines, and the main water inlet pipe 7 is communicated with a pipe network 13;
the two pipelines are sequentially provided with a manual valve 3, a pool booster pump 2, a check valve 5 and an electric valve 6, and the front and the back of the pool booster pump 2 are respectively provided with a soft joint 4;
wherein, pond booster pump 2 is used for supplying water to whole pipe network pressurization, flexible joint 4 and check valve 5 are used for preventing the water refluence, guarantee that pond booster pump 2 normally works.
The total water inlet pipe 7 is provided with a pressure reducing valve 8 and a first electromagnetic flowmeter 91, the first electromagnetic flowmeter is used for metering the total water supply amount, and the pressure reducing valve 8 is used for adjusting the water supply pressure.
A water return pipeline 12 is led out from the pipe network and connected to the water pool 1 so as to simulate water consumption of a user;
the water return pipe 12 is provided with an electric valve 6 and a second electromagnetic flow meter 92, and the second electromagnetic flow meter 92 is used for metering the total water consumption.
Preferably, any position of the pipe network 13 is provided with a plurality of water taps 10 for simulating a pipe network leakage point, and the position is not limited to that shown in fig. 1 and can be adjusted according to different experimental schemes.
Preferably, a water meter 11 is arranged in front of the water tap 10 to measure leakage flow and water leakage.
Preferably, the first electromagnetic flow meter 91 is provided behind the valve of the pressure reducing valve 8 to meter the total water supply.
Preferably, any position of the pipe network 13 is provided with a plurality of manual valves 3, electric valves 6 and electromagnetic flow meters 9, and the positions thereof are not limited to those shown in fig. 1 and can be adjusted according to different experimental schemes.
The electric valve 6 is used for controlling water inlet and outlet of the pipe network and independent water supply among the pipelines, and the manual valve 3 is used for ensuring safe water supply.
Preferably, the first electromagnetic flow meter 91, the second electromagnetic flow meter 92 and the electromagnetic flow meter 9 are all electromagnetic flow meters having a pressure measurement function, and can measure the flow rate and the pressure in the pipeline.
Fig. 2 is a flow chart showing steps of a method for testing the performance of a pressure management system of a water supply network based on a pressure reducing valve according to the present invention, and as shown in fig. 2, the method for testing the performance of a pressure management system of a water supply network based on a pressure reducing valve according to the present invention includes the following steps:
step S1, selecting the performance to be tested for the pressure management system, wherein the performance includes the accuracy and sensitivity of pressure adjustment, the pressure stabilizing effect of the pressure management system, and the leakage control effect of the pressure management system to the water supply network;
step S2, if testing the pressure adjusting accuracy and sensitivity, selecting the performance testing device to test the performance, the working condition includes the normal working condition, the accuracy ensuring working condition and the pressure changing working condition, setting the pressure after the pressure reducing valve, comparing the difference between the actual pressure and the set pressure through the data displayed by the electromagnetic flowmeter, and evaluating the accuracy of the pressure adjustment; evaluating the sensitivity of pressure adjustment according to the speed at which the actual pressure reaches the set pressure;
step S3, if the pressure stabilizing effect of the pressure management system is tested, the pressure behind the pressure reducing valve in the performance testing device is kept unchanged, the pressure in front of the valve of the pool booster pump is adjusted for many times, and the pressure stabilizing effect is tested through the pressure data displayed by the electromagnetic flowmeter;
step S4, if the leakage control effect of the pressure management system on the water supply pipe network is tested, the pressure behind the pressure reducing valve is adjusted by simulating the leakage point of the pipe network through a water tap in the pipe network, the relation between the pressure and the leakage is determined, and the reduction of the leakage before and after the pressure management system is used is tested through the flow data displayed by the electromagnetic flowmeter.
Further, in step two, the testing method of the normal operating condition is as follows: according to the actual water supply pressure condition and the pressure requirement of the city, pressure parameters are controlled after a pressure reducing valve of a pressure management system is arranged, and the pressure regulation accuracy and sensitivity are evaluated.
Further, in step two, the test method for ensuring the accuracy working condition includes: under the condition that the pressure management system ensures the accuracy, the minimum range requirement is set on the pressure of adjacent time nodes, and the pressure change of the pressure reducing valve of the adjacent time nodes is controlled by 1mH2Starting with O, the set pressure values are increased stepwise to evaluate the pressure regulation sensitivity.
Further, in step two, the method for testing the pressure variation condition includes: the pressure management system sets a plurality of adjusting time points when the high-frequency large-amplitude pressure changes, the adjusting time points are all different pressure values, and the pressure changes of the adjacent time points are larger than 5mH2O, evaluating pressure regulation accuracy and sensitivity.
The performance testing device and method for the pressure management system of the water supply network based on the pressure reducing valve can carry out various experimental schemes to meet different research requirements, and are further described based on one of the following embodiments:
firstly, opening a pool booster pump 2, and manual valves 3 and electric valves 6 arranged in front of and behind the pool booster pump, and opening water taps 10 in a pipe network 13, wherein the specific number and the opening degree of the water taps 10 are determined according to the leakage flow simulated as required; the electric valve 6 on the water return pipe 12 is adjusted, the water supply quantity and the water consumption quantity of the pressure management system are required values according to the first electromagnetic flow meter 91 on the main water inlet pipe 7 and the second electromagnetic flow meter 92 on the water return pipe 12, the difference between the water supply quantity and the water consumption quantity is leakage flow, and meanwhile, the leakage quantity can be checked by the water meter 11 in front of the water faucet 10.
Secondly, on the basis of not changing the opening degree of the electric valve 6 on the water return pipeline 12, the opening number and the opening degree of the water tap 10, the pressure behind the pressure reducing valve 8 of the pressure management system or the water supply pressure of the pool booster pump 2 is adjusted to carry out performance test:
the performance testing method comprises the following steps:
step S1, selecting the performance to be tested for the pressure management system, wherein the performance includes the accuracy and sensitivity of pressure adjustment, the pressure stabilizing effect of the pressure management system, and the leakage control effect of the pressure management system to the water supply network;
step S2, if testing the pressure adjusting accuracy and sensitivity, selecting the performance testing device to test the performance, the working condition includes the normal working condition, the accuracy ensuring working condition and the pressure changing working condition, setting the pressure after the pressure reducing valve, comparing the difference between the actual pressure and the set pressure through the data displayed by the electromagnetic flowmeter, and evaluating the accuracy of the pressure adjustment; evaluating the sensitivity of pressure adjustment according to the speed at which the actual pressure reaches the set pressure;
the testing method of the conventional working condition comprises the following steps: according to the actual water supply pressure condition and the pressure requirement of a city, pressure parameters are controlled after a pressure reducing valve of a pressure management system is arranged, the difference between the actual pressure and the set pressure is compared, and the pressure regulation accuracy and sensitivity are evaluated according to the difference between the actual pressure and the set pressure after the pressure reducing valve and the speed of regulating the actual pressure to the set pressure.
The test method for ensuring the accuracy working condition comprises the following steps: under the condition that the pressure management system ensures the accuracy, the minimum range requirement is set on the pressure of adjacent time nodes, and the pressure change of the pressure reducing valve of the adjacent time nodes is controlled by 1mH2And starting to gradually increase the set pressure value, and accurately adjusting the pressure to the set value according to whether the pressure reducing valve is on time or not to evaluate the pressure adjustment sensitivity.
The method for testing the pressure change working condition comprises the following steps: the pressure management system sets a plurality of adjusting time points when the pressure changes with high frequency and large amplitude, and the adjusting time pointsAll are different pressure values, and the pressure change at the adjacent time points is more than 5mH2And O, evaluating the accuracy and sensitivity of pressure regulation according to the difference between the actual pressure after the pressure reducing valve and the set pressure and the speed of regulating the actual pressure to the set pressure.
Further, the closer the actual pressure after the pressure reducing valve is to the set pressure, the higher the pressure regulation precision is;
the shorter the reaction time for the pressure reducing valve to adjust the pressure in accordance with the set pressure value, the higher the sensitivity of the pressure adjustment.
Step S3, if the pressure stabilizing effect of the pressure management system is tested, the pressure behind the pressure reducing valve in the performance testing device is kept unchanged, the pressure in front of the valve of the pool booster pump is adjusted for many times, and the pressure stabilizing effect is tested through the pressure data displayed by the electromagnetic flowmeter;
step S4, if the leakage control effect of the pressure management system on the water supply pipe network is tested, the pressure behind the pressure reducing valve is adjusted by simulating the leakage point of the pipe network through a water tap in the pipe network, the relation between the pressure and the leakage is determined, and the reduction of the leakage before and after the pressure management system is used is tested through the flow data displayed by the electromagnetic flowmeter.
Compared with the prior art, the performance testing device and method for the water supply network pressure management system based on the pressure reducing valve have the following advantages that:
through conventional operating mode, special operating mode (guarantee accuracy operating mode and pressure variation operating mode) and steady voltage effect test, pressure regulation accuracy, sensitivity, the stability to the pressure management system based on relief valve are evaluateed, verify the control effect of system to the leakage, for the selection and the application of the water supply network pressure management system based on the relief valve provide the suggestion in the city pressure management process, realize energy-conservation and fall leaking, reduce water supply network and explode the pipe probability, guarantee city water supply safety.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, the scope of the invention should be determined from the following claims.
Claims (10)
1. The utility model provides a water supply pipe network pressure management system capability test device based on relief pressure valve which characterized in that includes: the water pool (1) is communicated with a main water inlet pipe (7) through two pipelines, and the main water inlet pipe (7) is communicated with a pipe network (13); the two pipelines are sequentially provided with a manual valve (3), a pool booster pump (2), a check valve (5) and an electric valve (6), and the front and the back of the pool booster pump (2) are respectively provided with a soft joint (4); the main water inlet pipe (7) is provided with a pressure reducing valve (8) and a first electromagnetic flowmeter (91); a water return pipeline (12) is led out from the pipe network and connected to the water pool (1), and an electric valve (6) and a second electromagnetic flow meter (92) are arranged on the water return pipeline (12).
2. A performance testing apparatus for a pressure management system of a water supply network based on a pressure reducing valve as claimed in claim 1, wherein: a plurality of water taps (10) are arranged at any position of the pipe network (13).
3. A performance testing apparatus for a pressure management system of a water supply network based on a pressure reducing valve as claimed in claim 2, wherein: a water meter (11) is arranged in front of the water tap (10).
4. A performance testing apparatus for a pressure management system of a water supply network based on a pressure reducing valve as claimed in claim 3, wherein: the first electromagnetic flow meter (91) is arranged behind the pressure reducing valve (8).
5. A performance testing apparatus for a pressure management system of a water supply network based on a pressure reducing valve as claimed in claim 4, wherein: and a plurality of manual valves (3), electric valves (6) and electromagnetic flow meters (9) are arranged at any positions of the pipe network (13).
6. A performance testing apparatus for a pressure management system of a water supply network based on a pressure reducing valve as claimed in claim 5, wherein: the first electromagnetic flow meter (91), the second electromagnetic flow meter (92) and the electromagnetic flow meter (9) are all electromagnetic flow meters with pressure measurement functions.
7. A performance test method for a water supply pipe network pressure management system based on a pressure reducing valve is characterized by comprising the following steps:
selecting the performance to be tested for the pressure management system, wherein the performance comprises the pressure regulation accuracy and sensitivity, the pressure stabilizing effect of the pressure management system and the leakage control effect of the pressure management system on a water supply network;
if the pressure regulation accuracy and sensitivity are tested, selecting the working condition of the performance testing device for performance testing, wherein the working condition comprises a conventional working condition, a working condition for ensuring accuracy and a working condition for pressure change, setting the pressure of the pressure reducing valve, comparing the difference between the actual pressure and the set pressure through data displayed by an electromagnetic flowmeter, and testing the pressure regulation accuracy; testing the sensitivity of pressure adjustment according to the speed of the actual pressure reaching the set pressure;
step three, if the pressure stabilizing effect of the pressure management system is tested, the pressure behind a pressure reducing valve in the performance testing device is kept unchanged, the pressure in front of the valve of the pool booster pump is adjusted for multiple times, and the pressure stabilizing effect is tested through the pressure data of the electromagnetic flowmeter;
and step four, if the leakage control effect of the pressure management system on the water supply pipe network is tested, simulating a pipe network leakage point through a water tap in the pipe network, adjusting the pressure behind the pressure reducing valve, determining the relation between the pressure and the leakage through the flow data of the electromagnetic flowmeter, and testing the leakage reduction amount before and after the pressure management system is used.
8. The method as claimed in claim 7, wherein in step two, the method for testing the normal operation condition comprises: according to the actual water supply pressure condition and the pressure requirement of the city, pressure parameters are controlled after a pressure reducing valve of a pressure management system is arranged, and the pressure regulation accuracy and sensitivity are evaluated.
9. The method as claimed in claim 7, wherein in step two, the method for testing the performance of the pressure management system of the water supply pipe network based on the pressure reducing valve is as follows: under the condition that the pressure management system ensures the accuracy, the minimum range requirement is set on the pressure of adjacent time nodes, and the pressure change of the pressure reducing valve of the adjacent time nodes is controlled by 1mH2Starting with O, the set pressure values are increased stepwise to evaluate the pressure regulation sensitivity.
10. The method for testing the performance of the pressure management system of the water supply pipe network based on the pressure reducing valve as claimed in claim 7, wherein in the step two, the method for testing the pressure variation condition comprises the following steps: the pressure management system sets a plurality of adjusting time points when the high-frequency large-amplitude pressure changes, the adjusting time points are all different pressure values, and the pressure changes of the adjacent time points are larger than 5mH2O, evaluating pressure regulation accuracy and sensitivity.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111185493.7A CN113756394A (en) | 2021-10-12 | 2021-10-12 | Water supply network pressure management system performance testing device and method based on pressure reducing valve |
| PCT/CN2021/126682 WO2023060648A1 (en) | 2021-10-12 | 2021-10-27 | Performance testing device and method for water supply pipe network pressure management system based on pressure reduction valve |
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| CN202111185493.7A CN113756394A (en) | 2021-10-12 | 2021-10-12 | Water supply network pressure management system performance testing device and method based on pressure reducing valve |
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| CN113756394A true CN113756394A (en) | 2021-12-07 |
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| CN117740273A (en) * | 2024-02-19 | 2024-03-22 | 永忠工程管理(集团)有限公司 | Supply and drainage pipe testing device for plateau cold zone |
| CN117740273B (en) * | 2024-02-19 | 2024-05-03 | 永忠工程管理(集团)有限公司 | Supply and drainage pipe testing device for plateau cold zone |
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| US20080251131A1 (en) * | 2007-04-12 | 2008-10-16 | Michael Brent Ford | Method and system for detecting water system leaks |
| GB2553833A (en) * | 2016-09-16 | 2018-03-21 | Univ Cape Town | Pipe condition assessment device and system |
| CN107299657A (en) * | 2017-07-13 | 2017-10-27 | 哈尔滨功达给排水技术有限公司 | Public supply mains pressure controlling movable type system and the ductwork pressure regulation and control method realized using the system |
| CN109376925A (en) * | 2018-10-23 | 2019-02-22 | 青岛理工大学 | Water supply network node flow dynamic self-adapting optimization method |
| CN110851931A (en) * | 2019-10-14 | 2020-02-28 | 天津大学 | Optimal arrangement method for flow monitoring points of urban water supply pipe network |
| CN113093825A (en) * | 2021-04-30 | 2021-07-09 | 福州市自来水有限公司 | District water pressure regulation and leakage control analog system |
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| CN117740273A (en) * | 2024-02-19 | 2024-03-22 | 永忠工程管理(集团)有限公司 | Supply and drainage pipe testing device for plateau cold zone |
| CN117740273B (en) * | 2024-02-19 | 2024-05-03 | 永忠工程管理(集团)有限公司 | Supply and drainage pipe testing device for plateau cold zone |
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| WO2023060648A1 (en) | 2023-04-20 |
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