CN114593375A - Secondary water supply community pipeline leakage monitoring and positioning method based on pump house energy consumption - Google Patents
Secondary water supply community pipeline leakage monitoring and positioning method based on pump house energy consumption Download PDFInfo
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- CN114593375A CN114593375A CN202210323082.8A CN202210323082A CN114593375A CN 114593375 A CN114593375 A CN 114593375A CN 202210323082 A CN202210323082 A CN 202210323082A CN 114593375 A CN114593375 A CN 114593375A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/15—Leakage reduction or detection in water storage or distribution
Abstract
The invention discloses a secondary water supply community pipeline leakage monitoring and positioning method based on pump house energy consumption, and belongs to the field of pipeline leakage monitoring. According to the method for monitoring and positioning the pipeline leakage of the secondary water supply residential quarter, energy consumption monitoring equipment is used for monitoring the pump house electric meter, energy consumption data are collected and stored through a server, the daily energy consumption of the pump house is analyzed through a computer, the daily energy consumption of the pump house is predicted by adopting a trend moving average method of a time series model, a predicted value is compared with an actual monitoring value, the pipeline leakage condition is judged, a minimum leakage point area is rapidly determined by adopting a binary iteration method when leakage occurs, leakage can be found at the first time, the leakage point area is rapidly judged, leakage points are repaired in time, the energy consumption loss of the pump house and water resources can be rapidly reduced, the method has important significance for saving energy of the secondary water supply pump house and saving water of a residential quarter in a whole city, user complaints are reduced, and social benefits are improved.
Description
Technical Field
The invention relates to a pipeline leakage monitoring method, in particular to a secondary water supply community pipeline leakage monitoring and positioning method based on pump house energy consumption.
Background
The urban water supply network is an important infrastructure for urban construction, depends on the material foundation of existence and development, and in the maintenance and management process, the water supply network has the leakage condition, and serious large-area leakage accidents such as pipe explosion and the like frequently occur, so that the water supply leakage loss is large, the water resource is wasted, and the social and economic benefits of resident daily life and water supply enterprises are greatly influenced.
With the continuous development of city construction, more and more high-rise residential districts appear, and the high-rise residential districts all need the secondary water supply of pump house pressurization. In order to ensure the safe water use of residents and reduce the leakage rate of a pipe network, secondary water supply and pipe network leakage management become hot topics of the water supply industry, and related policy requirements are also met by the nation. The secondary water supply pipeline often has water supply pipeline leakage incident to take place because of reasons such as operating pressure height, tubular product, construction quality, ground subside. The leakage of the secondary water supply pipeline is often hidden and is not easy to be found in time, so that the leakage rate of the secondary water supply pipeline network in the community is high. Once pipeline leakage occurs, if the pipeline leakage is hidden, the pipeline leakage is not easy to find, and the pipeline leakage is probably leaked for months, so that the energy consumption of a pump room is continuously increased, the water leakage amount of a cell is higher (due to the fact that the pressure of a secondary water supply pipeline is higher), at present, a common city has hundreds of secondary water supply cells, and in continuous increase, the waste of the whole energy consumption and the loss of the water amount in one year are very large numbers; in addition, when the dark leakage becomes the light leakage, the tap water company has to be passively repaired without timely notifying the user, which often causes complaints and reduces social benefits.
At present, the leakage monitoring of secondary water supply pipeline mainly judges through secondary water supply summary table flow abnormity, and current many conventional pump rooms dispose simply, often do not have the secondary water supply summary table, and even have the secondary water supply summary table, also do not have the function of teletransmission data mostly, lead to judging that the pipeline leakage is more difficult and untimely. In addition, the leakage point inspection of the secondary water supply pipe network is also a heavy task, and especially the blind leakage needs to be inspected one by spending a lot of time.
Based on the above problems in the conventional secondary water supply pipeline leakage monitoring, it is necessary to find a simple and timely method for monitoring and positioning the leakage of the secondary water supply pipeline.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the defects of difficult leakage monitoring, untimely discovery, time and energy consumption for leakage point investigation and positioning and the like of the existing secondary water supply pipeline, and provides a method for monitoring and positioning the leakage of the secondary water supply district pipeline based on the energy consumption of a pump house, which adopts the technical scheme of the invention, utilizes energy consumption monitoring equipment to monitor the electric meter of the secondary water supply pump house, collects and stores data through a server, then utilizes a computer to analyze the daily energy consumption of the pump house, adopts a trend moving average method of a time series model to predict the daily energy consumption of the secondary water supply pump house, compares a predicted value with an actual monitoring value, judges the leakage condition of the pipeline, adopts a binary iteration method to quickly determine the minimum area of the leakage point when leakage occurs, reduces a large amount of leakage investigation time, can find leakage at the first time, quickly judge the leakage point area, timely repair the leakage point, can quickly reduce the energy consumption of the pump house and save water resources, the method has important significance for saving energy of secondary water supply district pump rooms in the whole city and saving water in the district.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention discloses a secondary water supply community pipeline leakage monitoring and positioning method based on pump room energy consumption, which comprises the following steps:
s1, establishing a pump room energy consumption online monitoring system: the pump house electric meter of the secondary water supply pump house is in communication connection with the energy consumption monitoring equipment, the energy consumption data of the pump house electric meter are collected through the energy consumption monitoring equipment, the energy consumption data collected by the energy consumption monitoring equipment are synchronously uploaded to the server, the energy consumption data collected and stored by the server are downloaded and transmitted to the computer, and the daily energy consumption data of the secondary water supply pump house are analyzed and judged through the computer;
s2, analyzing daily energy consumption of the pump room: in the computer, the daily energy consumption of the secondary water supply pump house is predicted by adopting a trend moving average method of a time series model, the predicted value is compared with an actual monitoring value, when the actual monitoring value is abnormally increased relative to the predicted value, the abnormal condition is judged, and the step S3 is executed;
s3, positioning a missing point area: according to the topological structure of a secondary water supply pipeline valve of a community, a binary iteration method is adopted, the valves of the area are closed at night, the area where a leakage point is located is determined through the change of energy consumption data of a real-time pump room at night, the area range of the leakage point is reduced, and the minimum area of the leakage point is determined;
s4, manually positioning a leak point and repairing: in the region of the minimum leakage point determined in step S3, the specific leakage point of the secondary water supply pipeline is manually located and repaired.
Further, the daily energy consumption prediction algorithm of the pump room in step S2 is specifically:
setting the time sequence to Y1、Y2、Y3、...YTWherein Y isTRepresenting the pump room energy consumption monitoring value on the Tth day, wherein the moving average term is N, and N is less than T;
then formula (1) is obtained: m(1) T＝(YT+YT-1+YT-2+...+YT-N+1) N, wherein M(1) TRepresenting the energy consumption value of the once moving average pump room for N days on T days;
and then obtaining the formula (2) by adopting a secondary moving average: m(2) T＝(M(1) T+M(1) T-1+M(1) T-2+...+M(1) T-N+1) N, wherein M(2) TRepresenting the energy consumption value of the secondary moving average pump room in N days in T days;
calculating M according to equation (2)(2) TAs the predicted value of the energy consumption of the pump room on the T day and the actual monitoring value C on the T dayTBy comparison, if (C)T-M(2) T)/CTIf the content is more than 20 percent, the judgment is abnormal.
Further, based on empirical values, the moving average term N takes 7.
Further, the substeps of step S3 are as follows:
s3-1, analyzing a topological structure of a secondary water supply network valve in a community;
s3-2, dividing the secondary water supply network of the community into 2 areas by taking an area valve as a boundary;
s3-3, closing the valve of the partition area at night;
s3-4, monitoring energy consumption data of the pump room at night in real time, wherein if the energy consumption data are obviously reduced, the leakage area is behind a valve of the area, and if the energy consumption data are not obviously changed, the leakage area is in front of the valve of the area; and repeating the steps S3-1 to S3-4 in the leakage area until no area valve can divide the pipe network into 2 areas, so as to obtain the area with the minimum leakage point.
Further, in step S1, the energy consumption monitoring device employs an electric energy efficiency monitoring terminal with a model of DTM 1218.
Furthermore, the energy consumption monitoring equipment is connected with the pump room electric meter through an RS485 communication cable.
Furthermore, the energy consumption monitoring device is connected with the server in a wireless communication mode.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) the invention relates to a secondary water supply district pipeline leakage monitoring and positioning method based on pump room energy consumption, by establishing the pump house energy consumption online monitoring system in the secondary water supply pump house, monitoring the energy consumption of the electric meter of the secondary water supply pump house by using the energy consumption monitoring equipment, collecting and storing energy consumption data by the server, then, the daily energy consumption of the pump house is analyzed by a computer, the daily energy consumption of the secondary water supply pump house is predicted by adopting a trend moving average method of a time series model, the predicted value is compared with an actual monitoring value, the condition of pipeline leakage is judged, when leakage occurs, a binary iteration method is adopted to quickly determine the minimum area of the leakage point, reduce a large amount of leakage detection time, find the leakage at the first time, quickly judge the area of the leakage point, repair the leakage point in time, quickly reduce the energy consumption loss of a pump house and save water resources, and has important significance for saving energy and saving water in the secondary water supply cell pump house of the whole city; moreover, after the leakage point is found in time, the tap water company can arrange planned maintenance and inform users in time, thereby reducing complaints of the users and improving social benefits;
(2) according to the method for monitoring and positioning the pipeline leakage of the secondary water supply community based on the energy consumption of the pump room, the daily energy consumption of the pump room is used as a basis for judging whether the energy consumption is abnormal or not, and the judgment of the pipeline leakage is more accurate; moreover, the daily energy consumption of the pump room fluctuates periodically and has trend increasing changes along with the increase of the residence rate of the cell, so that the prediction value is more accurate by adopting a trend moving average method in a time series model, and the leakage condition of a secondary water supply pipeline can be effectively monitored and found in time;
(3) according to the secondary water supply community pipeline leakage monitoring and positioning method based on pump house energy consumption, after the pipeline leakage is judged to occur, the leakage inspection range can be quickly reduced by using a binary iteration method, the minimum leakage area is obtained, the inspection workload and the inspection time of the leakage point of the pipe network are greatly reduced, and the pipe network leakage repair efficiency is improved;
(4) according to the method for monitoring and positioning the leakage of the pipeline of the secondary water supply community based on the energy consumption of the pump house, the energy consumption monitoring equipment adopts the electric energy efficiency monitoring terminal with the model number of DTM1218, so that the method has the advantages of convenience in installation, high monitoring precision and stability, safety, reliability and the like, has an RS485 communication interface and a wireless communication function, can realize connection with a pump house ammeter through an RS485 communication protocol, can be connected with a server through wireless communication, is convenient for networking installation, and is stable and reliable in operation.
Drawings
FIG. 1 is a flow chart of a method for monitoring and positioning leakage of a pipeline of a secondary water supply community based on energy consumption of a pump room according to the present invention;
fig. 2 is a schematic block diagram of a secondary water supply community pipeline leakage monitoring and positioning method based on pump room energy consumption.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
[ examples ]
Referring to fig. 1 and fig. 2, a method for monitoring and positioning leakage of a pipeline in a secondary water supply cell based on energy consumption of a pump room in this embodiment includes the following steps:
s1, establishing a pump room energy consumption online monitoring system: the pump house electric meter of the secondary water supply pump house is in communication connection with the energy consumption monitoring equipment, the energy consumption data of the pump house electric meter are collected through the energy consumption monitoring equipment, the energy consumption data collected by the energy consumption monitoring equipment are synchronously uploaded to the server, the energy consumption data collected and stored by the server are downloaded and transmitted to the computer, and the daily energy consumption data of the secondary water supply pump house are analyzed and judged through the computer; the energy consumption monitoring equipment preferably adopts an electric energy efficiency monitoring terminal with the model number of DTM1218, for example, DTM1218 type energy efficiency monitoring terminal equipment sold by Jiangsu Senwei electronic Co., Ltd is adopted, and the energy consumption monitoring equipment has the advantages of convenience in installation, high monitoring precision and stability, safety, reliability and the like, and has an RS485 communication interface and a wireless communication function; in this embodiment, energy consumption monitoring facilities and pump house ammeter adopt RS485 communication cable to be connected, and energy consumption monitoring facilities adopts wireless communication to be connected with the server, can realize being connected with the pump house ammeter through RS485 communication protocol, can adopt wireless communication to be connected with the server simultaneously, and the network deployment of being convenient for is installed, and remote monitoring operates reliable and stable. The server has data collection and storage functions, and the internal energy consumption data of the server can be downloaded to the computer manually.
S2, analyzing daily energy consumption of the pump room: the daily energy consumption of the pump room is selected as a basis for judging whether the energy consumption is abnormal, the daily water consumption is relatively stable, the daily operation energy consumption of the pump room is relatively stable, and the accuracy of judging the pipeline leakage is improved; because the daily energy consumption of the pump house fluctuates up and down periodically and has trend increasing changes along with the increase of the residence rate of the cell, the energy consumption prediction is performed by adopting a trend moving average method in a time series model in the embodiment, so that the predicted value of the daily energy consumption of the pump house is more accurate, and the leakage condition of a secondary water supply pipeline can be effectively monitored and found in time; specifically, in the computer, the daily energy consumption of the secondary water supply pump house is predicted by adopting a trend moving average method of a time series model, the predicted value is compared with an actual monitoring value, when the actual monitoring value is abnormally increased relative to the predicted value, the abnormal condition is judged, and step S3 is executed.
The pump house daily energy consumption prediction algorithm is as follows:
setting the time sequence to Y1、Y2、Y3、...YTWherein Y isTRepresenting the pump house energy consumption monitoring value on the Tth day, wherein the moving average term is N, and N is less than T;
then formula (1) is obtained: m(1) T＝(YT+YT-1+YT-2+...+YT-N+1) N, wherein M(1) TRepresenting the energy consumption value of the once moving average pump room for N days on T days;
M(1) Tthe value can predict the recent periodic up-and-down fluctuation value, but the reaction lag is delayed when the daily energy consumption trend of the pump house is increased along with the increase of the residence rate of the cell in the long term, so the formula (2) is obtained by adopting the quadratic moving average:
M(2) T＝(M(1) T+M(1) T-1+M(1) T-2+...+M(1) T-N+1) N, wherein, M(2) TRepresenting the energy consumption value of the secondary moving average pump room in N days in T days;
calculating M according to equation (2)(2) TAs the predicted value of the energy consumption of the pump room on the T day and the actual monitoring value C on the T dayTBy comparison, if (C)T-M(2) T)/CTIf the content is more than 20 percent, judging the content to be abnormal; the moving average term N is preferably 7, based on empirical values.
S3, positioning a missing point area: according to the topological structure of the secondary water supply pipeline valve in the community, a binary iteration method is adopted, the regional valve is closed at night, the region where the leakage point is located is determined through the change of energy consumption data of the pump house at night, the regional range of the leakage point is reduced, the minimum region of the leakage point is determined, the workload and the time for checking the leakage point of the pipe network can be greatly reduced, and the leakage repair efficiency of the pipe network is improved. The method specifically comprises the following steps:
s3-1, analyzing a topological structure of a secondary water supply network valve in a community;
s3-2, dividing the secondary water supply network of the community into 2 areas by taking an area valve as a boundary;
s3-3, closing the valve of the partition area at night;
s3-4, monitoring energy consumption data of the pump room at night in real time, wherein if the energy consumption data are obviously reduced, the leakage area is behind a valve of the area, and if the energy consumption data are not obviously changed, the leakage area is in front of the valve of the area, so that the area where leakage occurs can be determined; and in the leakage area, repeating the steps S3-1 to S3-4 until no area valve can divide the pipe network into 2 areas, and finally obtaining the area with the minimum leakage point.
S4, manually positioning a leak point and repairing: in the minimum leakage point area determined in the step S3, the specific leakage point of the secondary water supply pipeline is manually positioned and repaired, so that the leakage point investigation range is reduced, and the pipe network leakage point investigation and repair efficiency is improved.
According to the method for monitoring and positioning the leakage of the secondary water supply district pipeline based on the energy consumption of the pump room, the leakage of the secondary water supply district pipeline is monitored on line by adopting the energy consumption of the pump room, and the leakage can be judged simply and timely. When the secondary water supply pipeline is leaked, the energy consumption of an electric meter of the secondary water supply pump house is increased certainly, the acquired data are uploaded to the server synchronously through the energy consumption monitoring equipment, the energy consumption data collected and stored by the server are downloaded and transmitted to the computer, the computer judges the pipeline leakage after the daily energy consumption data of the pump house are analyzed by the algorithm, then the leakage area is judged rapidly by the aid of a binary iteration method, and leakage points are repaired by manual accurate positioning. Leakage loss can be found at the first time, leakage point areas can be rapidly judged, leakage points can be repaired in time, energy consumption loss of a pump house and water resource saving can be rapidly reduced, and the method has important significance for energy saving of a secondary water supply cell pump house and cell water saving of the whole city; moreover, after the leakage point is found in time, the tap water company can arrange planned maintenance and inform users in time, thereby reducing complaints of the users and improving social benefits.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (7)
1. A secondary water supply community pipeline leakage monitoring and positioning method based on pump room energy consumption is characterized by comprising the following steps:
s1, establishing an online pump room energy consumption monitoring system: the pump house electric meter of the secondary water supply pump house is in communication connection with the energy consumption monitoring equipment, the energy consumption data of the pump house electric meter are collected through the energy consumption monitoring equipment, the energy consumption data collected by the energy consumption monitoring equipment are synchronously uploaded to the server, the energy consumption data collected and stored by the server are downloaded and transmitted to the computer, and the daily energy consumption data of the secondary water supply pump house are analyzed and judged through the computer;
s2, analyzing daily energy consumption of the pump room: in the computer, the daily energy consumption of the secondary water supply pump house is predicted by adopting a trend moving average method of a time series model, the predicted value is compared with an actual monitoring value, when the actual monitoring value is abnormally increased relative to the predicted value, the abnormal condition is judged, and the step S3 is executed;
s3, positioning a missing point area: according to the topological structure of a secondary water supply pipeline valve of a community, a binary iteration method is adopted, the valves of the area are closed at night, the area where a leakage point is located is determined through the change of energy consumption data of a real-time pump room at night, the area range of the leakage point is reduced, and the minimum area of the leakage point is determined;
s4, manually positioning a leak point and repairing: and in the minimum leakage point area determined in the step S3, manually positioning the specific leakage point of the secondary water supply pipeline and repairing the specific leakage point.
2. The method for monitoring and positioning pipeline leakage of the secondary water supply community based on energy consumption of the pump room as claimed in claim 1, wherein the method comprises the following steps: the pump house daily energy consumption prediction algorithm in the step S2 specifically is as follows:
setting the time sequence to Y1、Y2、Y3、...YTWherein Y isTRepresenting the pump room energy consumption monitoring value on the Tth day, wherein the moving average term is N, and N is less than T;
then formula (1) is obtained: m(1) T＝(YT+YT-1+YT-2+...+YT-N+1) N, wherein M(1) TRepresenting the energy consumption value of the once moving average pump room for N days on T days;
and then obtaining the formula (2) by adopting a secondary moving average: m(2) T＝(M(1) T+M(1) T-1+M(1) T-2+...+M(1) T-N+1) N, wherein, M(2) TRepresenting the energy consumption value of the secondary moving average pump room in N days in T days;
calculating M according to equation (2)(2) TAs the predicted value of the energy consumption of the pump room on the T day and the actual monitoring value C on the T dayTBy comparison, if (C)T-M(2) T)/CTIf the content is more than 20 percent, the judgment is abnormal.
3. The method for monitoring and positioning pipeline leakage of the secondary water supply community based on energy consumption of the pump room as claimed in claim 2, characterized in that: based on empirical values, the moving average term N takes 7.
4. The method for monitoring and positioning pipeline leakage of the secondary water supply community based on energy consumption of the pump room as claimed in claim 1, wherein the method comprises the following steps: the substeps of step S3 are as follows:
s3-1, analyzing a topological structure of a secondary water supply network valve in a community;
s3-2, dividing the secondary water supply network of the community into 2 areas by taking an area valve as a boundary;
s3-3, closing the valve of the partition area at night;
s3-4, monitoring energy consumption data of the pump room at night in real time, wherein if the energy consumption data are obviously reduced, the leakage area is behind a valve of the area, and if the energy consumption data are not obviously changed, the leakage area is in front of the valve of the area; and repeating the steps S3-1 to S3-4 in the leakage area until no area valve can divide the pipe network into 2 areas, so as to obtain the area with the minimum leakage point.
5. The method for monitoring and positioning pipeline leakage of the secondary water supply community based on pump room energy consumption as claimed in any one of claims 1 to 4, wherein: in step S1, the energy consumption monitoring device uses an electric power energy efficiency monitoring terminal with a model of DTM 1218.
6. The method for monitoring and positioning pipeline leakage of the secondary water supply community based on energy consumption of the pump room as claimed in claim 5, wherein the method comprises the following steps: the energy consumption monitoring equipment is connected with the pump room electric meter through an RS485 communication cable.
7. The method for monitoring and positioning leakage of pipelines of the secondary water supply community based on the energy consumption of the pump room as claimed in claim 6, characterized in that: the energy consumption monitoring equipment is connected with the server in a wireless communication mode.
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| CN112180780A (en) * | 2020-09-09 | 2021-01-05 | 四川九门科技股份有限公司 | Intelligent energy consumption monitoring and management system and method |
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