CN111271605A - Pipe network leakage detection system - Google Patents
Pipe network leakage detection system Download PDFInfo
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- CN111271605A CN111271605A CN202010259592.4A CN202010259592A CN111271605A CN 111271605 A CN111271605 A CN 111271605A CN 202010259592 A CN202010259592 A CN 202010259592A CN 111271605 A CN111271605 A CN 111271605A
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- pipe network
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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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
Abstract
The invention relates to a pipe network leakage detection system, which comprises a computer and a plurality of flowmeters, wherein the flowmeters are arranged on a main pipe and each branch pipe of a pipe network and are connected with the computer; the flow meter is used for detecting the flow of a backbone network and each branch pipe in a pipe network and transmitting the detected data to the computer; and the computer judges the leakage condition of the pipe network by utilizing a flow analysis calculation model according to the data detected by the flow meter. The invention can improve the accuracy and the detection efficiency of pipe network leakage point detection.
Description
Technical Field
The invention relates to the technical field of pipe network detection, in particular to a pipe network leakage detection system.
Background
The water supply pipe network system in China has serious leakage of the water supply pipe network due to various reasons such as construction age, pipes, design and the like, the leakage rate of partial local tap water supply pipe networks is up to 40 percent, and even pipe explosion happens occasionally. Because the water supply network is complicated, the detection of the leakage point of the pipe network is a time-consuming and labor-consuming work. The method mainly adopts a leakage detector to manually detect the leakage of the pipe network at present, is generally carried out at night under the condition of low environmental noise, but wastes time and labor, and the accuracy rate is not guaranteed.
Disclosure of Invention
The invention aims to provide a pipe network leakage detection system, which improves the accuracy and the detection efficiency of pipe network leakage point detection.
The technical scheme adopted by the invention for solving the technical problems is as follows: providing a pipe network leakage detection system, which comprises a computer and a plurality of flowmeters, wherein the flowmeters are arranged on a main pipe and each branch pipe of a pipe network and are connected with the computer; the flow meter is used for detecting the flow of a backbone network and each branch pipe in a pipe network and transmitting the detected data to the computer; and the computer judges the leakage condition of the pipe network by utilizing a flow analysis calculation model according to the data detected by the flow meter.
When the computer judges the leakage condition of the pipe network by using the flow analysis calculation model, firstly, the flow measured by the flow meter on the backbone network is compared with the sum of the flows measured by the flow meters on all the branches at the lowest level, and if the flow measured by the flow meter on the backbone network is larger than the sum of the flows measured by the flow meters on all the branches at the lowest level, the leakage condition in the pipe network is judged.
When the computer judges that the leakage condition exists in the pipe network, each branch is judged, the flow meters on the kth branch pipe on the branch are compared with the sum of all the flow meters on the kth +1 th branch pipe, if the flow meters on the kth branch pipe on the branch are equal, the kth +1 th branch pipe of the branch is indicated to have no leakage condition, and if the flow meters on the kth branch pipe on the branch are not equal, the kth +1 th branch pipe of the branch is indicated to have the leakage condition, wherein k is a positive integer.
The flowmeter is an external clamp type ultrasonic flowmeter.
The flowmeter is connected with the computer through the data transmission unit.
The wireless transmission module of the flowmeter is connected with the data transmission unit by scanning the identification code.
Advantageous effects
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: according to the invention, the leak source detection is realized through the portable ultrasonic flowmeter, the existing pipe network is not influenced, the detection is convenient and fast, and the leak source detection efficiency is improved. The invention accurately judges the position of the leakage point through the flow calculation model, and improves the accuracy of the leakage point detection. The invention realizes the detection of the leakage point of the pipe network by the wireless communication technology and the terminal application program, and improves the working environment of the detection personnel of the leakage point of the pipe network.
Drawings
Fig. 1 is a schematic diagram of the principle of the present invention.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The embodiment of the invention relates to a pipe network leakage detection system, which comprises a computer and a plurality of flowmeters, wherein the flowmeters are arranged on a main pipe and each branch pipe of a pipe network and are connected with the computer; the flow meter is used for detecting the flow of a backbone network and each branch pipe in a pipe network and transmitting the detected data to the computer; and the computer judges the leakage condition of the pipe network by utilizing a flow analysis calculation model according to the data detected by the flow meter. The flow meter is an outer-clamping type ultrasonic flow meter, is provided with a battery for supplying power, and is integrated with a wireless transmission module GPRS. Each flowmeter is also provided with a two-dimensional code for identifying the identity of the flowmeter, and the connection between the GPRS and the data transmission unit can be realized by scanning the two-dimensional code, so that the detected data is automatically transmitted to the data transmission unit. The data transmission unit is in communication connection with a computer through a message queue telemetry transport protocol (MQTT), so that data transmitted by the flow meter are forwarded to the computer, and the computer calls a flow analysis calculation model to judge the leakage condition of the pipe network.
When the computer judges, firstly, the flow measured by the flow meter on the backbone network is compared with the sum of the flows measured by the flow meters on all the branch pipes at the lowest level, and if the flow measured by the flow meter on the backbone network is larger than the sum of the flows measured by the flow meters on all the branch pipes at the lowest level, the leakage condition in the pipe network is judged. When the leakage condition exists in the pipe network, each branch is judged, the flow meters on the k-level branch pipes on the branch are compared with the sum of all the flow meters on the k + 1-level branch pipes, if the flow meters on the k-level branch pipes on the branch are equal to the sum of all the flow meters on the k + 1-level branch pipes on the branch, the leakage condition of the k + 1-level branch pipes of the branch is indicated, and if the flow meters on the k-level branch pipes on the branch are not equal to the sum of all the flow meters.
A pipe network leakage detection system as shown in fig. 1 comprises an ultrasonic flowmeter 1, an ultrasonic flowmeter 2, an ultrasonic flowmeter 3, an ultrasonic flowmeter 4, an ultrasonic flowmeter 5, a data transmission unit 6, a computer 7, a trunk pipe 8, a first branch first primary branch pipe 9, a second branch second primary branch pipe 10, a second branch first secondary branch pipe 11 and a second branch second secondary branch pipe 12.
The specific process of leak detection is described in detail below. After the pipe network is divided, the area of a leakage point is preliminarily judged, then an ultrasonic flowmeter 1 is arranged on a main pipe 8, an ultrasonic flowmeter 2 is arranged on a first primary branch pipe 9 of a first branch, an ultrasonic flowmeter 3 is arranged on a second primary branch pipe 10 of a second branch, an ultrasonic flowmeter 4 is arranged on a second secondary branch pipe 12 of the second branch, and an ultrasonic flowmeter 5 is arranged on a first secondary branch pipe 11 of the second branch. The two-dimensional codes on the ultrasonic flow meters are scanned separately, so that each ultrasonic flow meter establishes a connection with the data transmission unit 6. And the data transmission unit 6 receives synchronous flow signals uploaded by each ultrasonic flowmeter through the wireless transmission module GPRS. And comparing the numerical value of the ultrasonic flowmeter 1 with the sum of the numerical values of the ultrasonic flowmeter 2, the ultrasonic flowmeter 4 and the ultrasonic flowmeter 5, and if the numerical value of the ultrasonic flowmeter 1 is greater than that of the ultrasonic flowmeter 2, the sum of the numerical values of the ultrasonic flowmeter 4 and the ultrasonic flowmeter 5 indicates that at least one of the first primary branch pipe 9, the second branch second primary branch pipe 10, the second branch first secondary branch pipe 11 and the second branch second secondary branch pipe 12 has a leak point. At this time, the value of the ultrasonic flowmeter 1 is compared with the sum of the ultrasonic flowmeters 2 and 3, and the value of the ultrasonic flowmeter 3 is compared with the sum of the ultrasonic flowmeters 4 and 5. If the value of the ultrasonic flow meter 3 is equal to the sum of the values of the ultrasonic flow meter 4 and the ultrasonic flow meter 5, it indicates that there is no leak point on the second branch first secondary branch pipe 11 and the second branch second secondary branch pipe 12, and the leak point is on the first branch first primary branch pipe 9 or the second branch second primary branch pipe 10. And the position of the pipe network leakage point is reduced, and the accurate pipe network leakage point is further determined by adopting the same method, so that the accurate leakage detection of the water supply pipe network is realized.
The invention can realize the leak source detection through the portable ultrasonic flowmeter, can not influence the existing pipe network, is convenient and quick, and improves the leak source detection efficiency. The invention accurately judges the position of the leakage point through the flow calculation model, and improves the accuracy of the leakage point detection. The invention realizes the detection of the leakage point of the pipe network by the wireless communication technology and the terminal application program, and improves the working environment of the detection personnel of the leakage point of the pipe network.
Claims (6)
1. A pipe network leakage detection system is characterized by comprising a computer and a plurality of flowmeters, wherein the flowmeters are arranged on a main pipe and each branch pipe of a pipe network and are connected with the computer; the flow meter is used for detecting the flow of a backbone network and each branch pipe in a pipe network and transmitting the detected data to the computer; and the computer judges the leakage condition of the pipe network by utilizing a flow analysis calculation model according to the data detected by the flow meter.
2. The pipe network leakage detection system according to claim 1, wherein when the computer determines that the pipe network has a leakage by using the flow analysis calculation model, the computer first compares the flow measured by the flow meter on the backbone network with the sum of the flows measured by the flow meters on all the branches at the lowest level, and determines that the pipe network has a leakage if the flow measured by the flow meter on the backbone network is greater than the sum of the flows measured by the flow meters on all the branches at the lowest level.
3. The pipe network leakage detection system according to claim 2, wherein when the computer determines that a leakage condition exists in the pipe network, the computer determines each branch, compares the flow meters on the k-stage branch pipes on the branch with the sum of all the flow meters on the k + 1-stage branch pipes, and if the flow meters on the k-stage branch pipes on the branch are equal to each other, the computer indicates that the k + 1-stage branch pipe of the branch has no leakage condition, and if the flow meters on the k-stage branch pipe on the branch are not equal to each other, the computer indicates that the k + 1-stage branch pipe of the branch has a leakage condition.
4. The pipe network leak hunting system of claim 1, wherein said flow meters are clip-on ultrasonic flow meters.
5. The pipe network leak hunting system of claim 1, wherein said flow meters are connected to a computer via a data transmission unit.
6. The pipe network leak detection system according to claim 5, wherein a wireless transmission module is integrated on the flowmeter and configured with an identification code, and the wireless transmission module of the flowmeter is connected with the data transmission unit by scanning the identification code.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010259592.4A CN111271605A (en) | 2020-04-03 | 2020-04-03 | Pipe network leakage detection system |
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| CN202010259592.4A CN111271605A (en) | 2020-04-03 | 2020-04-03 | Pipe network leakage detection system |
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| CN111271605A true CN111271605A (en) | 2020-06-12 |
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| CN202010259592.4A Pending CN111271605A (en) | 2020-04-03 | 2020-04-03 | Pipe network leakage detection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029472A (en) * | 2021-03-09 | 2021-06-25 | 西安交通大学 | Pipe network leakage detection system and detection method |
| CN113701061A (en) * | 2021-09-15 | 2021-11-26 | 石家庄西岭供热有限公司 | Pipeline leakage detection method, detection system and construction method |
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| CN113029472B (en) * | 2021-03-09 | 2022-04-05 | 西安交通大学 | Pipe network leakage detection system and detection method |
| CN113701061A (en) * | 2021-09-15 | 2021-11-26 | 石家庄西岭供热有限公司 | Pipeline leakage detection method, detection system and construction method |
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Application publication date: 20200612 |
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