CN103712070A - Water supply network pressure monitoring method - Google Patents
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Abstract
本发明涉及一种给水管网压力监测方法，包括如下步骤：（1）设定压力波动差值的最大值ΔPmax，ΔPmax为0.01-0.02MPa；（2）设定运算周期T，T取值为1-3秒；（3）压力监测远传装置记录当前管网压力值P01；（4）数据定时上发周期定时器T0开始计时；（5）经周期T后再次记录当前管网压力值P02；（6）利用公式|P02-P01|计算两次的压力值差并取绝对值；（7）将压力差值的绝对值与压力波动差值的最大值ΔPmax比较；（8）判断定制器T0是否计满；（9）重复步骤（1）-步骤（8）实现循环。由于水泄漏因此紧接着距离爆裂点中心由近及远的压力监测远传装置依次向中心控制室发送报警数据，通过这一串有时间先后顺序的报警信息，运行值班人员就会判断出爆裂点的准确位置。
The present invention relates to a method for monitoring the pressure of a water supply pipe network, comprising the following steps: (1) setting the maximum value of the pressure fluctuation difference ΔPmax, ΔPmax is 0.01-0.02MPa; (2) setting the calculation period T, and the value of T is 1-3 seconds; (3) The pressure monitoring remote transmission device records the current pipe network pressure value P01; (4) The data is regularly uploaded and the cycle timer T0 starts timing; (5) After the cycle T, the current pipe network pressure value P02 is recorded again ;(6) Use the formula |P02-P01| to calculate the pressure difference between two times and take the absolute value; (7) Compare the absolute value of the pressure difference with the maximum value ΔPmax of the pressure fluctuation difference; (8) Judge the customizer Whether T0 is full; (9) Repeat steps (1)-step (8) to realize the cycle. Due to the water leakage, the pressure monitoring remote transmission devices from near to far from the center of the burst point will send alarm data to the central control room in turn. Through this series of alarm information in chronological order, the operating personnel on duty will judge the burst point exact location.
Description
技术领域 technical field
本发明涉及城市给水技术领域，具体涉及给水管网压力动态监测方法。 The invention relates to the technical field of urban water supply, in particular to a method for dynamic monitoring of water supply pipe network pressure. the
背景技术 Background technique
随着生活水平的不断提高，人们的生产和生活对自来水供水的稳定性和可靠性要求也越来越高。对于城市供水公司来说，保质保量可靠稳定地供水是工作的重中之重。据调查，目前影响城市供水稳定的主要因素是管网破裂，一旦在主管网上出现破裂，就会对整体管网压力造成影响，进而影响供水稳定。然而，对于供水管网来说，基本上采用的都是环形和星形结合的布局，没有备用管网可言，而且均深埋于地下，无法对其定期检查和维护，也就无法对管网破裂做出有效的预防。这种情况对于老城区的老旧管网尤为严重。因此，尽早的发现管网破裂点，就能尽早修复故障点，从而最大程度地降低影响范围，减少漏水损失。 With the continuous improvement of living standards, people's production and life have higher and higher requirements for the stability and reliability of tap water supply. For urban water supply companies, reliable and stable water supply with quality and quantity is the top priority. According to the survey, the main factor affecting the stability of urban water supply is the rupture of the pipe network. Once a rupture occurs in the main network, it will affect the pressure of the overall pipe network, and then affect the stability of water supply. However, for the water supply pipe network, the layout is basically a combination of ring and star. There is no backup pipe network at all, and all of them are buried deep underground. Effective prevention of mesh breakage. This situation is especially serious for the old pipeline network in the old city. Therefore, if the rupture point of the pipe network is found as early as possible, the fault point can be repaired as soon as possible, thereby minimizing the scope of influence and reducing the loss of water leakage.
为了保证管网正常供水，尽早发现管网破裂故障，大多数供水公司都选择了在供水管网上安装基于手机无线通信的压力监测远传装置。各压力监测远传装置将数据适时传送到供水公司的中心控制室，运行值班人员就会对整体管网压力有所掌控。但该系统目前存在如下问题： In order to ensure the normal water supply of the pipe network and detect the rupture of the pipe network as soon as possible, most water supply companies have chosen to install a pressure monitoring remote transmission device based on mobile phone wireless communication on the water supply pipe network. Each pressure monitoring remote transmission device transmits the data to the central control room of the water supply company in a timely manner, and the operation personnel on duty will have control over the overall pipe network pressure. But the system currently has the following problems:
受通信条件的限制，各个压力监测远传装置的数据无法做到实时动态传送。一般都采用定时传送的方式，即压力监测远传装置每隔周期T0（T0称为数据上发周期，一般取5—10分钟）向中心控制室发送一次压力数据。中心控制室的组态软件根据预设值的参数处理后判断压力是否越限，并相应的做出报警提示。采用这种模式，当管网发生爆裂后，各个压力监测远传装置会在一个数据上发周期T0内将异常的压力数据上送到中心控制室。这种情况下中心控制室的值班人员只能看出受管网爆裂影响到的区域，无法判断出大概是哪个点发生爆裂。另外，当分支管网（管径较小的供水管道）发生破裂时，对整体管网影响小，压力往往只会在局部下降，下降后的值也不一定能够达到设定的压力下限，因此中心控制室很难及时的发现问题，从而造成大量水资源浪费。 Limited by communication conditions, the data of each pressure monitoring remote transmission device cannot be transmitted dynamically in real time. Generally, the method of timing transmission is adopted, that is, the pressure monitoring remote transmission device sends pressure data to the central control room every cycle T0 (T0 is called the data upload cycle, generally 5-10 minutes). The configuration software in the central control room judges whether the pressure exceeds the limit after processing according to the parameters of the preset value, and makes an alarm prompt accordingly. With this mode, when the pipe network bursts, each pressure monitoring remote transmission device will send abnormal pressure data to the central control room within a data upload cycle T0. In this case, the duty personnel in the central control room can only see the area affected by the burst of the pipe network, and cannot judge which point the burst occurred. In addition, when the branch pipe network (water supply pipe with small diameter) breaks, it will have little impact on the overall pipe network, and the pressure will often only drop locally, and the dropped value may not necessarily reach the set lower pressure limit, so It is difficult for the central control room to find problems in time, resulting in a lot of waste of water resources. the
发明内容 Contents of the invention
本发明为了克服以上技术的不足，提供了一种不仅能够及时监测到主管网爆裂准确地点，而且能够及时监测到支管网爆裂地点的给水管网压力监测方法。 In order to overcome the deficiencies of the above technologies, the present invention provides a water supply pipe network pressure monitoring method that can not only monitor the exact location of the main pipe network burst in time, but also can timely monitor the burst location of the branch pipe network.
本发明克服其技术问题所采用的技术方案是： The technical scheme that the present invention overcomes its technical problem adopts is:
本给水管网压力监测方法，包括如下步骤： The water supply pipe network pressure monitoring method includes the following steps:
a)设定压力波动差值的最大值ΔPmax，ΔPmax为0.01-0.02MPa； a) Set the maximum value of the pressure fluctuation difference ΔPmax, ΔPmax is 0.01-0.02MPa;
b)设定运算周期T，T取值为1-3秒； b) Set the operation cycle T, and the value of T is 1-3 seconds;
c)压力监测远传装置记录当前管网压力值P01； c) The pressure monitoring remote transmission device records the current pipe network pressure value P01;
d)数据定时上发周期定时器T0开始计时； d) The timer T0 of the periodic data sending period starts timing;
e)经周期T后再次记录当前管网压力值P02； e) After the period T, record the current pipe network pressure value P02 again;
f)利用公式|P02-P01|计算两次的压力值差并取绝对值； f) Use the formula |P02-P01| to calculate the pressure difference between two times and take the absolute value;
g)将压力差值的绝对值与压力波动差值的最大值ΔPmax比较，如果|P02-P01|＞ΔPmax，压力监测远传装置将|P02-P01|的值上报供水公司的中心控制室，通过中心控制室组态软件发出报警，并清除定时器T0，如果|P02-P01|＜ΔPmax，压力监测远传装置不做处理； g) Compare the absolute value of the pressure difference with the maximum value of the pressure fluctuation difference ΔPmax, if |P02-P01|>ΔPmax, the remote pressure monitoring device will report the value of |P02-P01| to the central control room of the water supply company, Send an alarm through the configuration software of the central control room, and clear the timer T0. If |P02-P01|<ΔPmax, the pressure monitoring remote transmission device will not handle it;
h)判断定制器T0是否计满，若计满则上发本次周期T0内测得的管网压力值，并清除上发周期定时器T0，将本次周期最后一次测得的P02的压力值转存到P01，等待下一个周期重新采集P02； h) Determine whether the customizer T0 is full, if it is full, send the pipe network pressure value measured in this cycle T0, and clear the upload cycle timer T0, and send the pressure of P02 last measured in this cycle Transfer the value to P01, and wait for the next cycle to collect P02 again;
i)重复步骤a)-步骤h)，实现循环。 i) Steps a)-step h) are repeated to realize a cycle.
为了判断P02压力值是否大于管网最大压力值，按照国家建设部管网供水压力服务规范要求根据压力监测远传装置具体安装位置设定该位置管网压力的最大值Pmax以及保证供水所需的最小压力值Pmin，在完成步骤a）-e)后判断P02的压力值是否大于Pmax，如果P02＞Pmax则将P02压力值上传供水公司的中心控制室，通过中心控制室组态软件发出报警，同时清除上发周期定时器T0，如果P02＜Pmax，压力监测远传装置不做处理。 In order to judge whether the P02 pressure value is greater than the maximum pressure value of the pipe network, according to the requirements of the Ministry of Construction pipe network water supply pressure service specification, the maximum value Pmax of the pipe network pressure at this position and the required water supply are set according to the specific installation location of the pressure monitoring remote transmission device. The minimum pressure value Pmin, after completing steps a)-e), judge whether the pressure value of P02 is greater than Pmax. If P02>Pmax, upload the pressure value of P02 to the central control room of the water supply company, and send an alarm through the configuration software of the central control room. At the same time, the sending cycle timer T0 is cleared. If P02<Pmax, the pressure monitoring remote transmission device does not process.
为了判断P02压力值是否小于管网最大压力值，按照国家建设部管网供水压力服务规范要求根据压力监测远传装置具体安装位置设定该位置管网压力的最大值Pmax以及保证供水所需的最小压力值Pmin，在完成步骤a）-e)后判断P02的压力值是否小于Pmin，如果P02＜Pmin，则将P02压力值上传供水公司的中心控制室，通过中心控制室组态软件发出报警，同时清除上发周期定时器T0，如果P02＞Pmin，压力监测远传装置不做处理。 In order to judge whether the P02 pressure value is less than the maximum pressure value of the pipe network, according to the requirements of the Ministry of Construction pipe network water supply pressure service specification, the maximum value Pmax of the pipe network pressure at this position and the required water supply are set according to the specific installation location of the pressure monitoring remote transmission device. The minimum pressure value Pmin, after completing steps a)-e), judge whether the pressure value of P02 is less than Pmin, if P02<Pmin, upload the pressure value of P02 to the central control room of the water supply company, and send an alarm through the configuration software of the central control room , and at the same time clear the sending period timer T0, if P02>Pmin, the pressure monitoring remote transmission device will not process.
本发明的有益效果是：当在管网发生爆裂时，距离发生爆裂点最近的压力监测远传装置首先监测到管网压力波动差值越限即此时|P02-P01|＞ΔPmax，然后压力监测远传装置立即将|P02-P01|压力值差的数据发送到供水公司的中心控制室。由于水泄漏因此紧接着距离爆裂点中心由近及远的压力监测远传装置依次向中心控制室发送报警数据，通过这一串有时间先后顺序的报警信息，运行值班人员就会判断出爆裂点的准确位置。由于检测的是压力波动差值，即使支管网爆裂，也能迅速准确的判断出支管网爆裂点位置，克服了传统检测方法因分支管网破损对整体管网影响小、压力不足以下降至设定压力下限导致无法报警的现象。 The beneficial effects of the present invention are: when a burst occurs in the pipe network, the pressure monitoring remote transmission device closest to the burst point first monitors that the pressure fluctuation difference of the pipe network exceeds the limit, that is, |P02-P01|>ΔPmax at this time, and then the pressure The monitoring remote transmission device immediately sends the data of |P02-P01| pressure value difference to the central control room of the water supply company. Due to the water leakage, the pressure monitoring remote transmission devices from near to far from the center of the burst point will send alarm data to the central control room in turn. Through this series of alarm information in chronological order, the operating personnel on duty will judge the burst point exact location. Because the detection is the pressure fluctuation difference, even if the branch pipe network bursts, it can quickly and accurately judge the burst point position of the branch pipe network, which overcomes the traditional detection method because the damage of the branch pipe network has little impact on the overall pipe network and the pressure is insufficient. The lower limit of the fixed pressure leads to the phenomenon that the alarm cannot be issued.
附图说明 Description of drawings
图1为本发明的压力计算检测步骤流程图。 Fig. 1 is a flowchart of pressure calculation and detection steps in the present invention.
具体实施方式 Detailed ways
下面结合附图1对本发明做进一步说明。 The present invention will be further described below in conjunction with accompanying drawing 1.
本给水管网压力监测方法，包括如下步骤： The water supply pipe network pressure monitoring method includes the following steps:
（1）设定压力波动差值的最大值ΔPmax，ΔPmax经多次试验后确定取值范围为0.01-0.02MPa，如果取值小于0.01MPa会导致报警灵敏度过高，当用水户开启或者关闭较大的阀门时就会导致误报的情况发生。如果取值大于0.02MPa，会造成漏报的情况发生，或者在较小的分支管网破裂时由于波动差值ΔPmax取值过大导致不会报警。 (1) Set the maximum value of the pressure fluctuation difference ΔPmax. After many tests, the value range of ΔPmax is determined to be 0.01-0.02MPa. If the value is less than 0.01MPa, the alarm sensitivity will be too high. When the valve is large, it will lead to false positives. If the value is greater than 0.02MPa, it will cause false alarms, or when the smaller branch pipe network ruptures, the value of the fluctuation difference ΔPmax is too large, resulting in no alarm.
（2）设定运算周期T，T取值为1-3秒，压力监测远传装置每隔周期T后，运算一次数据。该值一般选取1—3秒为宜。这是因为，选取运算周期T取值小于1秒会造成抖动，管网压力发生一次有效波动后，会产生多次报警数据，浪费通信流量，对中心控制室值班人员对报警判断造成干扰。而选取运算周期T时间过长，会导致报警的延迟，当有多个压力监测远传装置对同一个管网故障点发出报警时，中心控制室无法判断出各点报警时间的先后，进而也就无法判断出管网故障点距离哪个压力监测远传装置最近。 (2) Set the calculation period T, and the value of T is 1-3 seconds. The pressure monitoring remote transmission device calculates the data once every period T. The value is generally selected 1-3 seconds is appropriate. This is because choosing a calculation cycle T value of less than 1 second will cause jitter, and after an effective fluctuation of the pipe network pressure, multiple alarm data will be generated, which wastes communication traffic and interferes with the alarm judgment of the personnel on duty in the central control room. However, if the calculation period T is too long, the alarm will be delayed. When multiple pressure monitoring remote transmission devices send alarms to the same fault point in the pipeline network, the central control room cannot judge the alarm time of each point. It is impossible to judge which pressure monitoring remote transmission device is closest to the fault point of the pipe network.
（3）压力监测远传装置记录当前管网压力值P01。 (3) The pressure monitoring remote transmission device records the current pipe network pressure value P01.
（4）数据定时上发周期定时器T0开始计时。 (4) The timer T0 of the data timing upload period starts timing.
（5）经周期T后再次记录当前管网压力值P02。 (5) After the period T, record the current pipe network pressure value P02 again.
（6）利用公式|P02-P01|计算两次的压力值差并取绝对值。 (6) Use the formula |P02-P01| to calculate the difference between the two pressure values and take the absolute value.
（7）将压力差值的绝对值与压力波动差值的最大值ΔPmax比较，如果|P02-P01|＞ΔPmax，压力监测远传装置将|P02-P01|的值上报供水公司的中心控制室，通过中心控制室组态软件发出报警，并清除定时器T0，如果|P02-P01|＜ΔPmax，压力监测远传装置不做处理。 (7) Compare the absolute value of the pressure difference with the maximum value of the pressure fluctuation difference ΔPmax, if |P02-P01|>ΔPmax, the pressure monitoring remote transmission device will report the value of |P02-P01| to the central control room of the water supply company , send an alarm through the configuration software of the central control room, and clear the timer T0, if |P02-P01|<ΔPmax, the pressure monitoring remote transmission device will not handle it.
（8）判断定制器T0是否计满，若计满则上发本次周期T0内测得的管网压力值，并清除上发周期定时器T0，将本次周期最后一次测得的P02的压力值转存到P01，等待下一个周期重新采集P02。 (8) Determine whether the customizer T0 is full. If it is full, it will upload the pipe network pressure value measured in this cycle T0, and clear the upload cycle timer T0. The last measured P02 pressure value of this cycle Transfer the pressure value to P01, and wait for the next cycle to collect P02 again.
（9）重复步骤（1）-步骤（8），实现循环。 (9) Repeat steps (1)-step (8) to realize the cycle.
当在管网发生爆裂时，距离发生爆裂点最近的压力监测远传装置首先监测到管网压力波动差值越限即此时|P02-P01|＞ΔPmax，然后压力监测远传装置立即将|P02-P01|压力值差的数据发送到供水公司的中心控制室。由于有水泄漏,因此紧接着距离爆裂点中心由近及远的压力监测远传装置依次向中心控制室发送报警数据。通过这一串有时间先后顺序的报警信息，运行值班人员就会判断出爆裂点的准确位置。由于检测的是压力波动差值，即使支管网爆裂，也能迅速准确的判断出支管网爆裂点位置，克服了传统检测方法由于分支管网发生破损对整体管网影响小压力不足以下降至设定压力下限导致无法报警的情况发生。 When a burst occurs in the pipe network, the pressure monitoring remote transmission device closest to the burst point first detects that the pressure fluctuation difference of the pipe network exceeds the limit, that is, |P02-P01|>ΔPmax, and then the pressure monitoring remote transmission device immediately sets | P02-P01|The data of pressure difference is sent to the central control room of the water supply company. Due to water leakage, the pressure monitoring remote transmission devices that are near and far from the center of the burst point send alarm data to the central control room in turn. Through this series of alarm information in chronological order, the operator on duty will determine the exact location of the burst point. Because the detection is the pressure fluctuation difference, even if the branch pipe network bursts, it can quickly and accurately judge the burst point position of the branch pipe network, which overcomes the traditional detection method due to the damage of the branch pipe network to the overall pipe network. Setting the lower limit of the pressure leads to the failure of the alarm.
按照国家建设部管网供水压力服务规范要求根据压力监测远传装置具体安装位置设定该位置管网压力的最大值Pmax以及保证供水所需的最小压力值Pmin，国家建设部管网供水压力服务规范要求CJ／T316-2009《城镇供水服务》6.2节规定：供水水压应符合CJJ 58-2007中第 3.1.3 条的要求，供水管网末梢压力不应低于0.14Mpa，管网压力合格率不应小于97%。因此各压力监测远传装置的Pmin一般根据0.14Mpa上下调整。而Pmax一般是根据能把自来水供到七楼顶部的太阳能热水器上的压力来确定,通常以0.28Mpa上下调整。可以增加在完成步骤（1）-（6）后判断P02的压力值是否大于Pmax以及判断P02的压力值是否小于Pmin的步骤，如果P02＞Pmax则将P02压力值上传供水公司的中心控制室，通过中心控制室组态软件发出报警，同时清除上发周期定时器T0，如果P02＜Pmax，压力监测远传装置不做处理。如果P02＜Pmin，则将P02压力值上传供水公司的中心控制室，通过中心控制室组态软件发出报警，同时清除上发周期定时器T0，如果P02＞Pmin，压力监测远传装置不做处理。当压力监测远传装置记录的P02压力超过设定的管网压力最大值Pmax或者低于管网压力最小值压力最小值Pmin时，压力监测远传装置就会主动将当前越限的P02压力值传送到中心控制室，及时提醒值班人员发生了故障，从而采取措施进行压力调控。 According to the requirements of the Ministry of Construction's pipe network water supply pressure service specification, according to the specific installation location of the pressure monitoring remote transmission device, the maximum value of the pipe network pressure Pmax and the minimum pressure value Pmin required to ensure water supply are set. The Ministry of Construction's pipe network water supply pressure service Specification requirements CJ/T316-2009 "Urban Water Supply Service" Section 6.2 stipulates that the water supply pressure should meet the requirements of Article 3.1.3 of CJJ 58-2007, the pressure at the end of the water supply pipe network should not be lower than 0.14Mpa, and the pressure of the pipe network is qualified rate should not be less than 97%. Therefore, the Pmin of each pressure monitoring remote transmission device is generally adjusted up and down according to 0.14Mpa. Pmax is generally determined according to the pressure that can supply tap water to the solar water heater on the top of the seventh floor, and is usually adjusted up and down by 0.28Mpa. After completing steps (1)-(6), it is possible to add the steps of judging whether the pressure value of P02 is greater than Pmax and whether the pressure value of P02 is less than Pmin. If P02>Pmax, upload the pressure value of P02 to the central control room of the water supply company. Send an alarm through the configuration software in the central control room, and clear the sending cycle timer T0 at the same time. If P02<Pmax, the pressure monitoring remote transmission device will not handle it. If P02<Pmin, upload the pressure value of P02 to the central control room of the water supply company, send an alarm through the configuration software of the central control room, and clear the upload cycle timer T0 at the same time, if P02>Pmin, the pressure monitoring remote transmission device will not process . When the P02 pressure recorded by the pressure monitoring remote transmission device exceeds the set maximum value of the pipe network pressure Pmax or is lower than the minimum value of the minimum pressure of the pipe network pressure Pmin, the pressure monitoring remote transmission device will actively update the current P02 pressure value that exceeds the limit. Send it to the central control room to remind the on-duty personnel that a failure has occurred in time, so as to take measures to regulate the pressure. the
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