CN103712070A - Water supply network pressure monitoring method - Google Patents
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Abstract
The invention relates to a water supply network pressure monitoring method. The method includes the following steps of firstly, setting the maximum value delta Pmax of a pressure fluctuation difference value, wherein delta Pmax ranges from 0.01MPa to 0.02MPa; secondly, setting an operation cycle T, wherein T ranges from 1 second to 3 seconds; thirdly, recording the current network pressure values P01 through pressure monitoring remote transmission devices; fourthly, enabling a data timing uploading cycle timer T0 to start timing; fifthly, recording the current network pressure values P02 again after the cycle T; sixthly, calculating the differences of the pressure values according to the formula |P01-P02| and obtaining the absolute values; seventhly, comparing the absolute values of the pressure difference values with the maximum value delta Pmax of the pressure fluctuation difference value; eighthly, judging whether the timer T0 completes timing or not; ninthly, repeatedly executing the first step to the eighth step so that circulation can be achieved. Due to water leakage, the pressure monitoring remote transmission devices which are arranged adjacent to the center of the bursting point and in the direction gradually away from the center of the bursting point sequentially send alarm data to a center control chamber, and an operation operator on duty can judge the accurate position of the busting point according to the series of alarm information with the time sequence.
Description
Technical field
The present invention relates to city water technical field, be specifically related to water supply network pressure dynamic monitoring method.
Background technique
Along with improving constantly of living standard, people's production and life are also more and more higher to the stability of tap water supply and reliability requirement.For town water supply company, guaranteeing both quality and quantity supplies water reliable and stablely is the most important thing of work.According to investigations, affecting at present the stable principal element of town water supply is that pipe network breaks, once occur on the net breaking supervisor, will impact whole ductwork pressure, and then impact is supplied water stable.Yet for water supply network, what substantially adopt is all the layout of annular and star combination, does not have standby pipe network to say, and all buried in underground, cannot it be made regular check on and be safeguarded, also just cannot break and make effective prevention pipe network.This situation is particularly serious for the old pipe network of old town.Therefore, discovery pipe network breakdown point as early as possible, just can repair fault point as early as possible, thereby farthest reduces area of influence, reduces water loss.
In order to guarantee pipe network normal water supply, find as early as possible pipe network cracking, most of water supply company have all selected to install the pressure monitoring remote transmission device based on mobile phone wireless communication on water supply network.Each pressure monitoring remote transmission device is sent to data the Central Control Room of water supply company in good time, and operator will be controlled to some extent to whole ductwork pressure.But there are the following problems at present for this system:
Be subject to the restriction of communication condition, the data of each pressure monitoring remote transmission device cannot accomplish dynamically to transmit in real time.The general mode regularly transmitting that all adopts, pressure monitoring remote transmission device is called in data and sends out the cycle every cycle T 0(T0, generally gets 5-10 minutes) to Central Control Room, send a pressure data.The configuration software of Central Control Room judges that whether pressure is out-of-limit after processing according to the parameter of predefined value, and makes accordingly alarm.Adopt this pattern, after pipe network generation explosion, each pressure monitoring remote transmission device can send out in data that cycle T 0 is interior will deliver to Central Control Room on abnormal pressure data.The operator on duty of Central Control Room can only find out the region that had influence on by pipe network explosion in this case, and explosion occurs which point cannot to judge that the chances are.In addition, when branch's pipe network (water supply line that caliber is less) breaks, little on whole pipe network impact, pressure often only can decline in part, value after decline also not necessarily can reach the low pressure limit of setting, therefore Central Control Room is difficult to pinpoint the problems timely, thereby causes great lot of water resources waste.
Summary of the invention
The present invention, in order to overcome the deficiency of above technology, provides a kind of and not only can monitor in time the supervisor accurate place of net explosion, and can monitor in time the water supply network pressure monitoring method in a pipe network explosion place.
The present invention overcomes the technological scheme that its technical problem adopts:
This water supply network pressure monitoring method, comprises the steps:
A) the maximum value Δ Pmax of setting pressure fluctuation difference, Δ Pmax is 0.01-0.02MPa;
B) set execution cycle T, T value is 1-3 second;
C) pressure monitoring remote transmission device records current ductwork pressure value P01;
D) on data timing, send out cycle timer T0 and start timing;
E) after cycle T, again record current ductwork pressure value P02;
F) utilizing formula | P02-P01| calculates the pressure value difference of twice and takes absolute value;
G) by the maximum value Δ Pmax comparison of the absolute value of pressure difference value and pressure surge difference, if | P02-P01| > Δ Pmax, pressure monitoring remote transmission device by | the value of P02-P01| reports the Central Control Room of water supply company, by Central Control Room configuration software, send warning, and remove timer T0, if | P02-P01| < Δ Pmax, pressure monitoring remote transmission device does not process;
H) judge whether customizer T0 counts full, if the full upper ductwork pressure value recording in this cycle T 0 of sending out of meter, and remove and to send out a cycle timer T0, the force value of the P02 that this cycle is recorded for the last time dumps to P01, waits for next cycle Resurvey P02;
I) repeating step a)-step h), realize circulation.
In order to judge whether P02 force value is greater than pipe network maximum pressure value, according to Minstry of Housing and Urban-Rural Development of People Republic of China's pipe network water supply pressure service code requirement, according to the concrete mounting point of pressure monitoring remote transmission device, set maximum value Pmax and the required minimum pressure values Pmin of assure feed water of this position ductwork pressure, completing steps a)-e) after judge whether the force value of P02 is greater than Pmax, if P02 > is Pmax, P02 force value is uploaded to the Central Control Room of water supply company, by Central Control Room configuration software, send warning, remove the upper cycle timer T0 of sending out simultaneously, if P02 < is Pmax, pressure monitoring remote transmission device does not process.
In order to judge whether P02 force value is less than pipe network maximum pressure value, according to Minstry of Housing and Urban-Rural Development of People Republic of China's pipe network water supply pressure service code requirement, according to the concrete mounting point of pressure monitoring remote transmission device, set maximum value Pmax and the required minimum pressure values Pmin of assure feed water of this position ductwork pressure, completing steps a)-e) after judge whether the force value of P02 is less than Pmin, if P02 < is Pmin, P02 force value is uploaded to the Central Control Room of water supply company, by Central Control Room configuration software, send warning, remove the upper cycle timer T0 of sending out simultaneously, if P02 > is Pmin, pressure monitoring remote transmission device does not process.
The invention has the beneficial effects as follows: when in pipe network generation explosion, the nearest pressure monitoring remote transmission device of point of burst occurs distance, and first to monitor ductwork pressure fluctuation difference out-of-limit now | P02-P01| > Δ Pmax, then pressure monitoring remote transmission device immediately by | the data of P02-P01| pressure value difference send to the Central Control Room of water supply company.Because therefore water leak, and then apart from point of burst center pressure monitoring remote transmission device from the close-by examples to those far off, to Central Control Room, send Alert data successively, by the warning message of this string free sequencing, operator will be judged the accurate location of point of burst.Due to what detect, it is pressure surge difference, an even pipe network explosion, also can judge accurately rapidly a pipe network point of burst position, overcome traditional detection method because branch's pipe network breakage is little on whole pipe network impact, underpressure causes to drop to setting pressure lower limit the phenomenon that cannot report to the police.
Accompanying drawing explanation
Fig. 1 is calculation of pressure detecting step flow chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing 1, the present invention will be further described.
This water supply network pressure monitoring method, comprises the steps:
(1) the maximum value Δ Pmax of setting pressure fluctuation difference, Δ Pmax determines that after test of many times span is 0.01-0.02MPa, if value is less than 0.01MPa, can cause warning sensitivity too high, when water user opens or closes larger valve, will cause the situation of wrong report to occur.If value is greater than 0.02MPa, can cause situation about failing to report to occur, or when less branch's pipe network breaks because fluctuation difference DELTA Pmax excessive causing of value can not report to the police.
(2) set execution cycle T, T value is 1-3 second, pressure monitoring remote transmission device after cycle T, computing one secondary data.This value is generally chosen 1-3 seconds and is advisable.This be because, choose execution cycle T value and be less than 1 second and can cause shake, ductwork pressure occurs once, after effectively fluctuation, can produce repeatedly Alert data, waste communication flows, to Central Control Room, operator on duty causes interference to alarm decision.And choose execution cycle T overlong time, can cause the delay of reporting to the police, when having a plurality of pressure monitoring remote transmission devices to send warning to same accident of pipeline network point, Central Control Room cannot be judged the priority of each point time of fire alarming, and then it is nearest apart from which pressure monitoring remote transmission device also just cannot to judge accident of pipeline network point.
(3) pressure monitoring remote transmission device records current ductwork pressure value P01.
(4) on data timing, send out cycle timer T0 and start timing.
(5) after cycle T, again record current ductwork pressure value P02.
(6) utilizing formula | P02-P01| calculates the pressure value difference of twice and takes absolute value.
(7) by the maximum value Δ Pmax comparison of the absolute value of pressure difference value and pressure surge difference, if | P02-P01| > Δ Pmax, pressure monitoring remote transmission device by | the value of P02-P01| reports the Central Control Room of water supply company, by Central Control Room configuration software, send warning, and remove timer T0, if | P02-P01| < Δ Pmax, pressure monitoring remote transmission device does not process.
(8) judge whether customizer T0 counts full, if the full upper ductwork pressure value recording in this cycle T 0 of sending out of meter, and remove and to send out a cycle timer T0, the force value of the P02 that this cycle is recorded for the last time dumps to P01, waits for next cycle Resurvey P02.
(9) repeating step (1)-step (8), realizes circulation.
When in pipe network generation explosion, the nearest pressure monitoring remote transmission device of point of burst occurs distance, and first to monitor ductwork pressure fluctuation difference out-of-limit now | P02-P01| > Δ Pmax, then pressure monitoring remote transmission device immediately by | the data of P02-P01| pressure value difference send to the Central Control Room of water supply company.Owing to there being water to leak, therefore and then apart from point of burst center pressure monitoring remote transmission device from the close-by examples to those far off, to Central Control Room, send Alert data successively.By the warning message of this string free sequencing, operator will be judged the accurate location of point of burst.Due to what detect, it is pressure surge difference, an even pipe network explosion, also can judge accurately rapidly a pipe network point of burst position, overcome traditional detection method and to drop to setting pressure lower limit, caused situation about cannot report to the police to occur because branch's pipe network generation breakage affects little underpressure to whole pipe network.
According to Minstry of Housing and Urban-Rural Development of People Republic of China's pipe network water supply pressure service code requirement, according to the concrete mounting point of pressure monitoring remote transmission device, set maximum value Pmax and the required minimum pressure values Pmin of assure feed water of this position ductwork pressure, the pipe network water supply pressure service code requirement CJ/T316-2009 < < of Minstry of Housing and Urban-Rural Development of People Republic of China (MOHURD) urban water supply service > > 6.2 joint regulations: water supply pressure should meet the requirement of 3.1.3 bar in CJJ 58-2007, water supply network tip pressure should be lower than 0.14Mpa, ductwork pressure up-to-standard rate should not be less than 97%.Therefore the Pmin of each pressure monitoring remote transmission device generally adjusts up and down according to 0.14Mpa.And Pmax determines according to the pressure that tap water can be fed on the solar water heater of seven roof portions, conventionally with 0.28Mpa, adjust up and down.After can being increased in completing steps (1)-(6), judge whether the force value of P02 is greater than Pmax and judges whether the force value of P02 is less than the step of Pmin, if P02 > is Pmax, P02 force value is uploaded to the Central Control Room of water supply company, by Central Control Room configuration software, send warning, remove the upper cycle timer T0 of sending out simultaneously, if P02 < is Pmax, pressure monitoring remote transmission device does not process.If P02 < is Pmin, P02 force value is uploaded to the Central Control Room of water supply company, by Central Control Room configuration software, sent warning, remove the upper cycle timer T0 of sending out simultaneously, if P02 > is Pmin, pressure monitoring remote transmission device does not process.When the P02 pressure of pressure monitoring remote transmission device record surpasses the ductwork pressure maximum value Pmax that sets or during lower than ductwork pressure minimum value pressure minimum value Pmin, pressure monitoring remote transmission device will initiatively be sent to Central Control Room by current out-of-limit P02 force value, remind in time operator on duty that fault has occurred, thereby take measures to carry out pressure controlling.
Claims (3)
1. a water supply network pressure monitoring method, is characterized in that: comprise the steps:
A) the maximum value Δ Pmax of setting pressure fluctuation difference, Δ Pmax is 0.01-0.02MPa;
B) set execution cycle T, T value is 1-3 second;
C) pressure monitoring remote transmission device records current ductwork pressure value P01;
D) on data timing, send out cycle timer T0 and start timing;
E) after cycle T, again record current ductwork pressure value P02;
F) utilizing formula | P02-P01| calculates the pressure value difference of twice and takes absolute value;
G) by the maximum value Δ Pmax comparison of the absolute value of pressure difference value and pressure surge difference, if | P02-P01| > Δ Pmax, pressure monitoring remote transmission device by | the value of P02-P01| reports the Central Control Room of water supply company, by Central Control Room configuration software, send warning, and remove timer T0, if | P02-P01| < Δ Pmax, pressure monitoring remote transmission device does not process;
H) judge whether customizer T0 counts full, if the full upper ductwork pressure value recording in this cycle T 0 of sending out of meter, and remove and to send out a cycle timer T0, the force value of the P02 that this cycle is recorded for the last time dumps to P01, waits for next cycle Resurvey P02;
I) repeating step a)-step h), realize circulation.
2. water supply network pressure monitoring method according to claim 1, it is characterized in that: according to Minstry of Housing and Urban-Rural Development of People Republic of China's pipe network water supply pressure service code requirement, according to the concrete mounting point of pressure monitoring remote transmission device, set maximum value Pmax and the required minimum pressure values Pmin of assure feed water of this position ductwork pressure, completing steps a)-e) after judge whether the force value of P02 is greater than Pmax, if P02 > is Pmax, P02 force value is uploaded to the Central Control Room of water supply company, by Central Control Room configuration software, send warning, remove the upper cycle timer T0 of sending out simultaneously, if P02 < is Pmax, pressure monitoring remote transmission device does not process.
3. water supply network pressure monitoring method according to claim 1, it is characterized in that: according to Minstry of Housing and Urban-Rural Development of People Republic of China's pipe network water supply pressure service code requirement, according to the concrete mounting point of pressure monitoring remote transmission device, set maximum value Pmax and the required minimum pressure values Pmin of assure feed water of this position ductwork pressure, completing steps a)-e) after judge whether the force value of P02 is less than Pmin, if P02 < is Pmin, P02 force value is uploaded to the Central Control Room of water supply company, by Central Control Room configuration software, send warning, remove the upper cycle timer T0 of sending out simultaneously, if P02 > is Pmin, pressure monitoring remote transmission device does not process.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106641738A (en) * | 2016-12-27 | 2017-05-10 | 上海科勒电子科技有限公司 | Pipeline leakage monitoring method and control unit, device and system |
| CN107560782A (en) * | 2017-07-28 | 2018-01-09 | 福星智慧家生活服务有限公司 | Cracking of waterpipe detection method and system |
| CN108916663A (en) * | 2018-09-08 | 2018-11-30 | 北京逸智联科技有限公司 | A kind of municipal network water supply monitoring system and monitoring method |
| CN108980628A (en) * | 2018-07-27 | 2018-12-11 | 上海航天动力科技工程有限公司 | A kind of water supply network booster alarm method |
| CN109185708A (en) * | 2018-11-05 | 2019-01-11 | 泰华智慧产业集团股份有限公司 | A kind of water supply network monitoring method and system |
| CN110159929A (en) * | 2019-05-31 | 2019-08-23 | 万基泰科工集团西南科技有限公司 | Subdrainage pipe network intelligently manages big data processing method |
| CN111317953A (en) * | 2019-12-29 | 2020-06-23 | 杭州拓深科技有限公司 | Intelligent algorithm-based water pipe network water leakage monitoring method for fire fighting |
| CN111915448A (en) * | 2020-06-05 | 2020-11-10 | 广东泓铖新能源科技有限公司 | Pipe network fault detection method and system based on Internet of things and storage medium |
| CN114906902A (en) * | 2022-05-17 | 2022-08-16 | 中联环股份有限公司 | Distributed CMF membrane system process |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641738A (en) * | 2016-12-27 | 2017-05-10 | 上海科勒电子科技有限公司 | Pipeline leakage monitoring method and control unit, device and system |
| CN107560782A (en) * | 2017-07-28 | 2018-01-09 | 福星智慧家生活服务有限公司 | Cracking of waterpipe detection method and system |
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| CN110159929A (en) * | 2019-05-31 | 2019-08-23 | 万基泰科工集团西南科技有限公司 | Subdrainage pipe network intelligently manages big data processing method |
| CN110159929B (en) * | 2019-05-31 | 2020-11-24 | 万基泰科工集团西南科技有限公司 | Intelligent control big data processing method for underground drainage pipe network |
| CN111317953A (en) * | 2019-12-29 | 2020-06-23 | 杭州拓深科技有限公司 | Intelligent algorithm-based water pipe network water leakage monitoring method for fire fighting |
| CN111317953B (en) * | 2019-12-29 | 2021-06-15 | 杭州拓深科技有限公司 | Intelligent algorithm-based water pipe network water leakage monitoring method for fire fighting |
| CN111915448A (en) * | 2020-06-05 | 2020-11-10 | 广东泓铖新能源科技有限公司 | Pipe network fault detection method and system based on Internet of things and storage medium |
| CN111915448B (en) * | 2020-06-05 | 2023-06-23 | 广东泓铖新能源科技有限公司 | Pipe network fault detection method, system and storage medium based on Internet of things |
| CN114906902A (en) * | 2022-05-17 | 2022-08-16 | 中联环股份有限公司 | Distributed CMF membrane system process |
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