CN115751196B - Real-time monitoring method for RTM municipal pipeline - Google Patents
Real-time monitoring method for RTM municipal pipeline Download PDFInfo
- Publication number
- CN115751196B CN115751196B CN202211194493.8A CN202211194493A CN115751196B CN 115751196 B CN115751196 B CN 115751196B CN 202211194493 A CN202211194493 A CN 202211194493A CN 115751196 B CN115751196 B CN 115751196B
- Authority
- CN
- China
- Prior art keywords
- circuit
- switch circuit
- pipeline
- resistor
- real
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention relates to the field of pipeline monitoring, and provides a real-time monitoring method for an RTM municipal pipeline. The technical problem to be solved is to finish the blockage measurement of a plurality of pipelines through one IO port. The main scheme includes that the resistance values of different sampling resistor circuits under different time are obtained according to the conduction conditions of the switch circuits K by arranging the switch circuits K on different pipelines, the conduction conditions of the switch circuits K in the switch circuit sets { K1, K2, …, kx, … Kn } under different time are obtained according to the magnitude of the resistance values, and the blocking position of the pipeline is determined according to the conduction conditions of the switch circuits K under different time.
Description
Technical Field
The invention relates to the field of pipeline monitoring, and provides a RTM (Real Time Monitoring) municipal pipeline real-time monitoring method.
Background
1. Current situation of blockage, leakage and maintenance of municipal pipelines
For maintenance of municipal pipelines, most of the current methods are in passive detection, namely detection and maintenance are performed by related personnel when the pipeline is observable and perceptible on the ground due to pipe explosion or leakage blockage, so that a great deal of manpower, resources and property waste is caused.
2. The technical proposal and means adopted at present
The current method for detecting the water leakage point comprises the following steps:
1. the method of detecting leakage by listening is to use a listening device (or listening stick) to listen at a contact point on the ground along the direction of the pipeline at intervals to judge whether a leakage point exists on the pipeline;
2. the leakage detection is carried out by a correlation analysis method, and whether leakage points exist is judged by analyzing the leakage sounds received by different measuring points on the same pipe section by means of a correlation instrument (such as ultrasonic waves);
3. leakage detection is carried out by a flow method, and the abnormal water leakage area is judged by the change of the flow of a pipeline and is generally divided into an area meter-loading method and an area flow measuring method;
4. detecting leakage by a noise method, and judging leakage points by detecting the intensity and frequency of leakage sound by means of related equipment;
5. detecting leakage by a ground penetrating radar method, and detecting a wetted area formed around the leakage point to judge the leakage point.
In the prior art, by arranging the positive and negative electrodes in the pipeline, when the pipeline is blocked, the liquid level rises, the positive and negative electrodes are conducted through the liquid, and the positive and negative electrodes are measured by the measuring circuit to be conducted, namely, the pipeline is judged to be blocked.
Disclosure of Invention
The invention aims to solve the technical problem that blockage measurement of a plurality of pipelines can be completed through one IO port.
In order to solve the technical problems, the invention adopts the following technical scheme:
a real-time monitoring method for RTM municipal pipelines comprises the following steps:
sampling resistor circuit, sampling resistor circuit passes through current-limiting resistor R Limiting the limit Connecting Vcc, the sampling resistor circuit comprises n isolation positioning resistors Rg, and each pipeline is positioned with the corresponding isolationThe resistors Rg are mapped to obtain isolation positioning resistor sets { Rg1, rg1, …, rgx, …, rgn }, wherein n corresponds to the serial number of each pipeline, a fixed resistor Rw is arranged between every two isolation positioning resistors Rg, all the isolation positioning resistors and the fixed resistor Rw are connected with a common ground line through a switch circuit K, namely the isolation positioning resistor sets { K1, K2, …, kx, … }
Kn, mapping each pipeline with a corresponding fixed resistor Rw to obtain a resistor set { Rw1, rw2, …, rwx, …, rwn }, wherein n is the serial number of the pipeline;
the switch circuit comprises a blockage detection electrode arranged in the pipeline, the blockage detection electrode comprises a positive plate and a negative plate, when the positive plate and the negative plate are conducted through liquid in the pipeline, the switch circuit is triggered to be conducted, and the switch circuit conducts a fixed resistor Rw with a public ground wire;
according to the conduction conditions of the switch circuits K in the switch circuit sets { K1, K2, …, kx, … Kn }, the resistance values of different sampling resistor circuits at different times are obtained, the conduction conditions of the switch circuits K in the switch circuit sets { K1, K2, …, kx, … Kn } at different times are obtained according to the resistance values, and the blocking position of the pipeline is determined according to the conduction conditions of the switch circuits K at different times.
In the technical scheme, the switching circuit can adopt a switching tube and a relay.
In the above technical scheme, the circuit further comprises a truth table for sampling the resistance value of the resistance circuit, wherein the resistance value in the truth table corresponds to the conduction condition of the switch circuit K.
In the above technical scheme, the sampling resistor circuit is connected to a power supply through a current-limiting series resistor R, the power supply voltage is Vcc, the voltage of the sampling resistor circuit is Vout, and the resistance calculation formula of the sampling resistor circuit is as follows:
Vcc/(R collecting +R Limiting the limit )*R Collecting ＝Vout
The method comprises the following steps: r is R Collecting ＝Vout*R Limiting the limit /(Vcc-Vout)。
The invention also discloses a real-time monitoring method of the RTM municipal pipeline, which comprises the pipelines, wherein every two pipelines are connected through socket joints, each socket joint comprises a socket head and a plug, the plugs are inserted into the socket heads, the socket heads and the plugs are sealed through sealing rings, at least 2 sealing rings are arranged, a leakage detection electrode is arranged between the two sealing rings, and the leakage detection electrode is connected with a sampling resistor circuit;
sampling resistor circuit, sampling resistor circuit passes through current-limiting resistor R Limiting the limit The sampling resistor circuit comprises n isolation positioning resistors Rg, each pipeline is mapped with the corresponding isolation positioning resistor Rg to obtain isolation positioning resistor sets { Rg1, rg1, …, rgx, … and Rgn }, wherein n corresponds to the serial number of each pipeline, fixed resistors Rw are arranged between every two isolation positioning resistors Rg, all the sampling resistor circuits and the fixed resistors Rw are connected with a common ground wire through a switch circuit K, namely the switching circuit sets { K1, K2, …, kx and … Kn }, each pipeline is mapped with the corresponding fixed resistor Rw to obtain resistor sets { Rw1, rw2, …, rwx, … and Rwn }, and n is the serial number of the pipeline;
the trigger end of the switch circuit is connected with the leakage detection electrode, when liquid enters between the two sealing rings of the socket joint, the positive electrode and the negative electrode of the leakage detection electrode are conducted, the switch circuit is triggered to conduct, and the switch circuit conducts the fixed resistor Rw with the public ground wire;
according to the conduction condition of the switch circuit K in the switch circuit sets { K1, K2, …, kx, … Kn }, the resistance values of different sampling resistor circuits are obtained, the conduction condition of the switch circuit K in the switch circuit sets { K1, K2, …, kx, … Kn } is obtained according to the resistance values, and the water leakage position of the socket joint of the pipeline is determined according to the conduction condition of the switch circuit K.
In the technical scheme, the switching circuit can adopt a switching tube and a relay.
In the above technical scheme, the circuit further comprises a truth table for sampling the resistance value of the resistance circuit, wherein the resistance value in the truth table corresponds to the conduction condition of the switch circuit K.
In the technical scheme, the sampling resistor circuit passes through the current-limiting series resistor R Limiting the limit The power supply is connected, the power supply voltage is Vcc, the voltage of the sampling resistor circuit is Vout, and the resistance calculation formula of the sampling resistor circuit is as follows:
Vcc/(R collecting +R Limiting the limit )*R Collecting ＝Vout
The method comprises the following steps: r is R Collecting ＝Vout*R Limiting the limit /(Vcc-Vout)。
Because the invention adopts the technical scheme, the invention has the following beneficial effects:
1. according to the invention, for a plurality of pipelines, the blocking detection and monitoring can be realized in a centralized manner through one port of the chip, the leakage detection and monitoring can be realized in a centralized manner through the other port of the chip, and the problem that one pipeline needs one chip I0 interface is avoided, so that the use of the chip can be greatly reduced.
2. According to the invention, the position of the blockage of the pipeline is determined by referring to the time characteristic and by the change of the resistance value of the sampling resistance circuit caused by the conduction condition of the switch circuit K at different times.
3. When the leakage is detected, the position of the leakage of the pipeline can be directly determined according to the change of the resistance value of the sampling resistance circuit caused by the conduction condition of the switch circuit K at different times without referring to the time characteristics, and the leakage is detected.
Drawings
FIG. 1 is a circuit diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a leakage detection electrode and a blockage detection electrode according to the embodiment of the present invention;
1-switching circuit, 2-leakage detection electrode, 3-blockage detection electrode, 4-sealing ring, 5-pipe body, 6-plug and 7-socket.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail. While the invention will be described and illustrated in conjunction with certain specific embodiments, it will be understood that it is not intended to limit the invention to these embodiments alone. On the contrary, the invention is intended to cover modifications and equivalent arrangements included within the scope of the appended claims.
In addition, numerous specific details are set forth in the following description in order to provide a better illustration of the invention. It will be understood by those skilled in the art that the present invention may be practiced without these specific details.
A real-time monitoring method for RTM municipal pipelines comprises the following steps:
the sampling resistor circuit is limited by Vcc through a current limiting resistor R, comprises n isolation positioning resistors Rg, maps each pipeline with the corresponding isolation positioning resistor Rg to obtain isolation positioning resistor sets { Rg1, rg1, …, rgx, … and Rgn }, wherein n corresponds to the serial number of each pipeline, fixed resistors Rw are arranged between every two isolation positioning resistors Rg, all the sampling resistor sets and the fixed resistors Rw are connected with a common ground wire through a switch circuit K, namely switch circuit sets { K1, K2, …, kx and … Kn }, and maps each pipeline with the corresponding fixed resistor Rw to obtain resistor sets { Rw1, rw2, …, rwx, … and Rwn }, wherein n is the serial number of the pipeline;
the switch circuit comprises a positive plate and a negative plate which are arranged in the pipeline, and when the positive plate and the negative plate are conducted through liquid in the pipeline, the switch circuit is triggered to conduct, and the switch circuit conducts the fixed resistor Rw with a public ground wire;
according to the conduction conditions of the switch circuits K in the switch circuit sets { K1, K2, …, kx, … Kn }, the resistance values of different sampling resistor circuits at different times are obtained, the conduction conditions of the switch circuits K in the switch circuit sets { K1, K2, …, kx, … Kn } at different times are obtained according to the resistance values, and the blocking position of the pipeline is determined according to the conduction conditions of the switch circuits K at different times.
In the technical scheme, the switching circuit can adopt a switching tube and a relay.
In the above technical scheme, the method further comprises sampling the real value attenuation of the resistance value of the resistance circuit, wherein the resistance value in the real ratio table corresponds to the conduction condition of the switch circuit K.
In the technical scheme, the sampling resistor circuit passes through the current-limiting series resistor R Limiting the limit The power supply is connected, the power supply voltage is Vcc, the voltage of the sampling resistor circuit is Vout, and the resistance calculation formula of the sampling resistor circuit is as follows:
Vcc/(R collecting +R Limiting the limit )*R Collecting ＝Vout
The method comprises the following steps: r is R Collecting ＝Vout*R Limiting the limit /(Vcc-Vout)。
The invention also discloses a real-time monitoring method of the RTM municipal pipeline, which comprises the pipelines, wherein every two pipelines are connected through socket joints, each socket joint comprises a socket head and a plug, the plugs are inserted into the socket heads, the socket heads and the plugs are sealed through sealing rings, at least 2 sealing rings are arranged, a leakage detection electrode is arranged between the two sealing rings, and the leakage detection electrode is connected with a sampling resistor circuit;
the sampling resistor circuit is limited by Vcc through a current limiting resistor R, comprises n isolation positioning resistors Rg, maps each pipeline with the corresponding isolation positioning resistor Rg to obtain isolation positioning resistor sets { Rg1, rg1, …, rgx, … and Rgn }, wherein n corresponds to the serial number of each pipeline, fixed resistors Rw are arranged between every two isolation positioning resistors Rg, all the sampling resistor sets and the fixed resistors Rw are connected with a common ground wire through a switch circuit K, namely switch circuit sets { K1, K2, …, kx and … Kn }, and maps each pipeline with the corresponding fixed resistor Rw to obtain resistor sets { Rw1, rw2, …, rwx, … and Rwn }, wherein n is the serial number of the pipeline;
the trigger end of the switch circuit is connected with the leakage detection electrode, when liquid enters between the two sealing rings of the socket joint, the positive electrode and the negative electrode of the leakage detection electrode are conducted, the switch circuit is triggered to conduct, and the switch circuit conducts the fixed resistor Rw with the public ground wire;
according to the conduction condition of the switch circuit K in the switch circuit sets { K1, K2, …, kx, … Kn }, the resistance values of different sampling resistor circuits are obtained, the conduction condition of the switch circuit K in the switch circuit sets { K1, K2, …, kx, … Kn } is obtained according to the resistance values, and the water leakage position of the socket joint of the pipeline is determined according to the conduction condition of the switch circuit K.
In the technical scheme, the switching circuit can adopt a switching tube and a relay.
In the above technical scheme, the circuit further comprises a truth table for sampling the resistance value of the resistance circuit, wherein the resistance value in the truth table corresponds to the conduction condition of the switch circuit K.
In the technical scheme, the sampling resistor circuit passes through the current-limiting series resistor R Limiting the limit The power supply is connected, the power supply voltage is Vcc, the voltage of the sampling resistor circuit is Vout, and the resistance calculation formula of the sampling resistor circuit is as follows:
Vcc/(R collecting +R Limiting the limit )*R Collecting ＝Vout
The method comprises the following steps: r is R Collecting ＝Vout*R Limiting the limit /(Vcc-Vout)。
As the optimal collection of 8 pipelines, each collector can collect 8 pipelines, the resistance of the sampling resistance circuit is changed from 1/2R to 1/16R, and if the change value of the resistance circuit calculated by too many collection pipelines is too small, the position of a specific pipeline is not easy to judge.
For the truth table of the resistance values of the sampling resistor circuit, the resistance values in the true ratio table correspond to the conduction condition of the switch circuit K, and refer to the following:
for the conduction condition of the switch circuit K corresponding to the resistance value in the true ratio table, the following table can be calculated by adopting a calculation method.
Therefore, the resistance characteristic Rt (x) =k×r of the detection circuit, K is a constant, and R is a set value. The state in the pipeline is thus related to K as:
for the conduction condition of the switch circuit K corresponding to the resistance value in the true ratio table, a measurement method can be adopted to obtain the conduction condition of the switch circuit K corresponding to the resistance value. If one pipe is blocked, the corresponding resistance value is measured.
Transmission, storage and processing of data
And the data transmission adopts the fusion transmission of Nb-IoT, loRa and 4G network, so that the signal transmission is more stable and reliable. The self-grinding software is stored and processed.
Claims (8)
1. The real-time monitoring method for the RTM municipal pipelines comprises the following steps:
sampling resistor circuit, sampling resistor circuit passes through current-limiting resistor R Limiting the limit The sampling resistor circuit comprises n isolation positioning resistors Rg, each pipeline is mapped with the corresponding isolation positioning resistor Rg to obtain isolation positioning resistor sets { Rg1, rg1, …, rgx, … and Rgn }, wherein n corresponds to the serial number of each pipeline, fixed resistors Rw are arranged between every two isolation positioning resistors Rg, all the fixed resistors Rw are connected with a common ground wire through a switch circuit K, namely switch circuit sets { K1, K2, …, kx and … Kn }, each pipeline is mapped with the corresponding fixed resistor Rw to obtain resistor sets { Rw1, rw2, …, rwx, … and Rwn }, and n is the serial number of the pipeline;
the switch circuit comprises a blockage detection electrode arranged in the pipeline, the blockage detection electrode comprises a positive plate and a negative plate, when the positive plate and the negative plate are conducted through liquid in the pipeline, the switch circuit is triggered to be conducted, and the switch circuit conducts a fixed resistor Rw with a public ground wire;
according to the conduction conditions of the switch circuits K in the switch circuit sets { K1, K2, …, kx, … Kn }, the resistance values of different sampling resistor circuits at different times are obtained, the conduction conditions of the switch circuits K in the switch circuit sets { K1, K2, …, kx, … Kn } at different times are obtained according to the resistance values, and the blocking position of the pipeline is determined according to the conduction conditions of the switch circuits K at different times.
2. The real-time monitoring method for RTM municipal pipelines according to claim 1, wherein the switching circuit can adopt a switching tube and a relay.
3. The real-time monitoring method of the RTM municipal pipeline according to claim 1, further comprising sampling a resistance value truth table of the resistance circuit, wherein the resistance value in the truth table corresponds to the conduction condition of the switch circuit K.
4. The real-time monitoring method for RTM municipal pipelines according to claim 1, wherein the sampling resistor circuit is connected with the resistor R in series through current limiting Limiting the limit The power supply is connected, the power supply voltage is Vcc, the voltage of the sampling resistor circuit is Vout, and the resistance calculation formula of the sampling resistor circuit is as follows:
Vcc/（R collecting +R Limiting the limit ）*R Collecting = Vout
The method comprises the following steps: r is R Adopt = Vout* R Limiting the limit /( Vcc- Vout) 。
5. The real-time monitoring method for the RTM municipal pipelines according to claim 1, wherein the real-time monitoring method comprises the steps that the pipelines are connected in pairs through socket joints, each socket joint comprises a socket head and a plug, the plug is inserted into the socket head, and the socket head and the plug are sealed through sealing rings, and the real-time monitoring method is characterized in that at least 2 sealing rings are arranged, a leakage detection electrode is arranged between the two sealing rings, and the leakage detection electrode is connected with a sampling resistor circuit;
the trigger end of the switch circuit is connected with the leakage detection electrode, when liquid enters between the two sealing rings of the socket joint, the positive electrode and the negative electrode of the leakage detection electrode are conducted, the switch circuit is triggered to conduct, and the switch circuit conducts the fixed resistor Rw with the public ground wire;
according to the conduction condition of the switch circuit K in the switch circuit sets { K1, K2, …, kx, … Kn }, the resistance values of different sampling resistor circuits are obtained, the conduction condition of the switch circuit K in the switch circuit sets { K1, K2, …, kx, … Kn } is obtained according to the resistance values, and the water leakage position of the socket joint is determined according to the conduction condition of the switch circuit K.
6. The real-time monitoring method for RTM municipal pipelines according to claim 5, wherein the switching circuit adopts a switching tube and a relay.
7. The real-time monitoring method of RTM municipal pipeline according to claim 5, further comprising sampling a resistance value truth table of the resistance circuit, wherein the resistance value in the truth table corresponds to the conduction condition of the switch circuit K.
8. The real-time monitoring method for RTM municipal pipelines according to claim 5, wherein the sampling resistor circuit is connected with the resistor R in series through current limiting Limiting the limit The power supply is connected, the power supply voltage is Vcc, the voltage of the sampling resistor circuit is Vout, and the resistance calculation formula of the sampling resistor circuit is as follows:
Vcc/（R collecting +R Limiting the limit ）*R Collecting = Vout
The method comprises the following steps: r is R Adopt = Vout* R Limiting the limit /( Vcc-Vout) 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211194493.8A CN115751196B (en) | 2022-09-28 | 2022-09-28 | Real-time monitoring method for RTM municipal pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211194493.8A CN115751196B (en) | 2022-09-28 | 2022-09-28 | Real-time monitoring method for RTM municipal pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115751196A CN115751196A (en) | 2023-03-07 |
| CN115751196B true CN115751196B (en) | 2023-06-20 |
Family
ID=85350534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211194493.8A Active CN115751196B (en) | 2022-09-28 | 2022-09-28 | Real-time monitoring method for RTM municipal pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115751196B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0120479A2 (en) * | 1983-03-23 | 1984-10-03 | Nippon Steel Corporation | Structure fastening cable |
| CA2213459A1 (en) * | 1997-08-20 | 1999-02-20 | Michael Lee Roberts | Leak monitoring system |
| CN1261955A (en) * | 1997-05-07 | 2000-08-02 | 马丁·莱曼 | Leak test for closed receptacles, testing chamber testing device and installation therefor |
| CN1936413A (en) * | 2006-09-29 | 2007-03-28 | 淄博思科光电科技有限公司 | Underground pipeline leak-detection method and apparatus |
| CN101246206A (en) * | 2008-03-13 | 2008-08-20 | 谭国强 | Bleeder current measurer checking device |
| CN101598263A (en) * | 2009-07-10 | 2009-12-09 | 东北大学 | Portable pipeline leakage detection method and device |
| CN202937947U (en) * | 2012-11-23 | 2013-05-15 | 徐冶锋 | Adapting-form rubber ring electric-smelting double-seal joint pipe fitting and tubular product |
| CN106093131A (en) * | 2016-06-16 | 2016-11-09 | 太原理工大学 | A kind of paste filling pipe plugging monitoring device and method |
| CN111610773A (en) * | 2019-02-26 | 2020-09-01 | 霍尼韦尔国际公司 | Detecting loop resistance and leakage current in an input/output (I/O) loop |
| CN112879807A (en) * | 2015-11-02 | 2021-06-01 | 柔性钢管道技术公司 | Method for monitoring a pipeline |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3639476A1 (en) * | 1986-11-18 | 1988-05-19 | Willi Fischer | Safety device at pressure lines |
| ATE102347T1 (en) * | 1989-09-05 | 1994-03-15 | Brandes Bernd | METHOD AND DEVICE FOR LOCATING THE TRUE LOCATION OF A LEAK IN A PIPE CONTAINING A WET MEDIUM. |
| AT501758B1 (en) * | 2005-07-13 | 2006-11-15 | Bier Guenther Ing | METHOD OF LOCATING LEAKAGE IN TUBE |
| CN105889680A (en) * | 2014-11-14 | 2016-08-24 | 鹤岗市安通实业有限公司 | Rapid bell and spigot pipe joint which is used for combination pipes and is provided with pressure valves |
| CN205155583U (en) * | 2015-11-20 | 2016-04-13 | 武汉大学 | City network of rivers pipeline leakage loss monitoring system |
| CN208474953U (en) * | 2018-05-03 | 2019-02-05 | 国网安徽省电力有限公司培训中心 | Water supply network leaks automatic positioning equipment |
| CN108870092B (en) * | 2018-08-01 | 2020-12-01 | 北京中彤节能技术有限公司 | Wiring formula pipeline monitoring system |
| CN114413079B (en) * | 2021-11-02 | 2024-04-02 | 安徽省生宸源材料科技实业发展股份有限公司 | Plastic double-wall corrugated pipeline anti-drop self-sealing connection socket joint |
-
2022
- 2022-09-28 CN CN202211194493.8A patent/CN115751196B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0120479A2 (en) * | 1983-03-23 | 1984-10-03 | Nippon Steel Corporation | Structure fastening cable |
| CN1261955A (en) * | 1997-05-07 | 2000-08-02 | 马丁·莱曼 | Leak test for closed receptacles, testing chamber testing device and installation therefor |
| CA2213459A1 (en) * | 1997-08-20 | 1999-02-20 | Michael Lee Roberts | Leak monitoring system |
| CN1936413A (en) * | 2006-09-29 | 2007-03-28 | 淄博思科光电科技有限公司 | Underground pipeline leak-detection method and apparatus |
| CN101246206A (en) * | 2008-03-13 | 2008-08-20 | 谭国强 | Bleeder current measurer checking device |
| CN101598263A (en) * | 2009-07-10 | 2009-12-09 | 东北大学 | Portable pipeline leakage detection method and device |
| CN202937947U (en) * | 2012-11-23 | 2013-05-15 | 徐冶锋 | Adapting-form rubber ring electric-smelting double-seal joint pipe fitting and tubular product |
| CN112879807A (en) * | 2015-11-02 | 2021-06-01 | 柔性钢管道技术公司 | Method for monitoring a pipeline |
| CN106093131A (en) * | 2016-06-16 | 2016-11-09 | 太原理工大学 | A kind of paste filling pipe plugging monitoring device and method |
| CN111610773A (en) * | 2019-02-26 | 2020-09-01 | 霍尼韦尔国际公司 | Detecting loop resistance and leakage current in an input/output (I/O) loop |
Non-Patent Citations (1)
| Title |
|---|
| 离子加速器中水泄漏监测定位控制器的设计;曹丽蓉;杨光;;自动化与仪器仪表(02);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115751196A (en) | 2023-03-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101684894B (en) | Method and device for monitoring pipeline leakage | |
| CN101598263B (en) | Portable pipeline leakage detection method and device | |
| CN102287620B (en) | System and method for automatic in-situ monitoring on leakage of underground sewage pipeline | |
| CN105806429A (en) | Pipeline leak and pipe burst detection method of ultrasonic water meter | |
| CN207316488U (en) | A kind of long distance wireless routine for pipe-line transportation system leakage or gas leakage | |
| CN205720093U (en) | Metal pipeline corrosion data acquisition unit | |
| CN210800732U (en) | Water supply network leakage detection equipment and system | |
| CN110195824A (en) | A kind of network-based underground pipeline water leakage detection method and leakage water tester | |
| CN115751196B (en) | Real-time monitoring method for RTM municipal pipeline | |
| CN111486345B (en) | Grain depot underground pipe network liquid leakage on-line monitoring and early warning method and device | |
| CN106932682A (en) | A kind of earth-return circuit detection method of voltage whole station one point earth | |
| CN207145984U (en) | Water supply network actively reports leakage system | |
| CN202735036U (en) | Condenser leak detection device | |
| CN105953081A (en) | Early warning device and early warning method for recognizing disrepair and leakage of oil pipelines | |
| CN202442856U (en) | Sensing-cable oil-leakage detection apparatus | |
| CN204922520U (en) | Pipeline inspection device | |
| CN106093717A (en) | A kind of distribution network cable insulating properties detecting system | |
| CN103423599B (en) | A kind of small leak detection ball for liquid pipeline | |
| CN213653620U (en) | Real-time intelligent monitoring system for water pressure of outdoor fire hydrant | |
| CN209230889U (en) | Platform with pipeline node leak detection | |
| CN210860681U (en) | System for be used for monitoring nonmetal pipeline and leak | |
| CN212107901U (en) | Underground water supply and drainage pipeline leakage detection system | |
| CN109140246A (en) | A kind of pipeline leakage detection system based on wireless network | |
| CN205579020U (en) | Audio frequency detection device | |
| CN201233357Y (en) | On site on-line erosion rate monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |