CN103807607A - Novel device and method for detecting leakage of fluids in pipelines - Google Patents
Novel device and method for detecting leakage of fluids in pipelines Download PDFInfo
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Abstract
The invention discloses a novel device for detecting leakage of fluids in pipelines. The device comprises a pipeline transportation system, flow meters and pressure sensors, wherein the pipeline transportation system is formed through series connection of a small-diameter pipeline parallel connection unit and a large-diameter pipeline; the flow meters are used for detecting the flow amounts and the flow speeds at inlets and outlets of small-diameter pipelines; and the pressure sensors are used for detecting pressure at the outlets of the small-diameter pipelines in the parallel connection unit. A controller controls an alarm and electric control valves according to a scheduled strategy, and the scheduled strategy is as follows: when the difference of flow values detected at the inlets and the outlets is larger than a differential flow threshold value or the difference of flow speed values is larger than a threshold value of the difference of the flow speeds, an alarming signal is sent to the alarm, and a closing signal is sent to the electric control valves at the inlets of the pipelines; when the difference of pressure values detected at the outlets is larger than a pressure difference threshold value, an alarming signal is sent to the alarm to show that loss exists in the pipeline with small pressure, and a closing signal is sent to the electric control valves at the inlets of the pipelines; the alarm receives the alarming signal, gives an alarm and reports the loss position; and the electric control valves are closed after receiving the closing signal. The invention further discloses a method for detecting leakage of fluids in the pipelines.
Description
Technical field
The present invention relates to a kind of leakage detection apparatus, particularly relate to a kind of novel pipeline fluid leak detection device.
The present invention relates to a kind of leak hunting method simultaneously, particularly relates to a kind of novel pipeline fluid leak detection method.
Background technique
Pipeline transport have freight volume large, take up an area less, the advantage such as expense is low, safe, continuity is strong, become at present the principal mode of fluid transport, but the test problems that pipeline fluid runs off is but a problem demanding prompt solution, the pipeline fluid leakage detection apparatus of present stage can not well address this problem.The current of for example water supply line lose, water supply line in use for some time, tend to damage because of the impact of various factors, water is leaked, leaking not only to make valuable water resources waste in a large number, affect the safety reliability of water supply network, also can cause damage to pipeline foundation, pipeline and underground communal facility are destroyed, current water supply line leak hunting method mainly contains sound and listens leak detecting, subregion leak detecting etc., but above method exist operating process complexity, cost high, the shortcomings such as little loss can not be detected.For another example the pipeline transport of oil, Buried Oil Pipelines is subject to the impact of many complicated factors such as geographical environment, oil transportation operating mode, ambient condition and drilling hole of oil stolen, along with the increase of service life, can engender the phenomenon such as weld cracking, corrosion failure, cause the leakage of pipeline oil product.Current leak hunting method mainly contains the methods such as negative pressure wave method, ultrasonic method, radioactive tracer method, but above method exists, and cost is high, complicated operation, leak detection error large, can not stop in real time fluid to continue the defects such as losss, can not finely meet the leak detection requirement that present stage transports pipeline oil.
Summary of the invention
The object of the present invention is to provide a kind of novel pipeline fluid leak detection devices and methods therefor.
Novel pipeline fluid leak detection device provided by the invention comprises small-bore pipeline, large diameter pipeline, flowmeter, pressure transducer, controller, alarm, electric control valve, described small-bore pipeline composes in parallel small-bore pipeline unit in parallel, described large diameter pipeline units in series composition in parallel with small-bore pipeline pipeline, described flowmeter is arranged on ingress and the outlet port of each small-bore pipeline, for detection of the flow value in small-bore pipeline ingress and outlet port one-period, and the flow value of detection is transferred to described controller, and flowmeter one-period finishes rear automatic clear, metering again, described flowmeter can detect the rate of flow of fluid in ingress and the outlet port of each small-bore pipeline simultaneously, and the rate of flow of fluid value of detection is transferred to described controller, described pressure transducer is positioned at each small-bore pipeline in parallel outlet port of each small-bore pipeline unit in parallel, be connected with described controller, for detection of the pressure values in each small-bore pipeline in parallel outlet port, and the pressure values of detection is transferred to described controller, described controller is connected with described pressure transducer with described flowmeter, be used for according to the testing signal of described flowmeter, alarm and described electric control valve described in the testing signal of described pressure transducer and predetermined policy control: described predetermined policy comprises: in described controller, be provided with difference in flow threshold value, the flow value of detection is transferred to controller by the flowmeter that is positioned at same small-bore pipeline ingress and outlet port, controller is by the difference of two flow values and the comparison of difference in flow threshold value, if the difference specific discharge difference limen value of two flow values is large, think that this small-bore pipeline exists fluid to run off, give described alarm transmission alarm signal, give the electric control valve transmission shutdown signal that is positioned at this small-bore pipeline ingress, in described controller, be provided with rate of flow of fluid difference limen value, the rate of flow of fluid value of detection is transferred to controller by the flowmeter that is positioned at same small-bore pipeline ingress and outlet port, controller is by the difference of two rate of flow of fluid values and the comparison of rate of flow of fluid difference limen value, if the difference of two rate of flow of fluid values is larger than rate of flow of fluid difference limen value, think that this small-bore pipeline exists fluid to run off, give described alarm transmission alarm signal, give the electric control valve transmission shutdown signal that is positioned at this small-bore pipeline ingress, in described controller, be provided with pressure difference threshold value, the pressure values of detection is transferred to controller by the pressure transducer that is positioned at each small-bore pipeline in parallel outlet port, controller is by poor between two all pressure values that receive, and by difference and the comparison of pressure difference threshold value, if the strong difference limen value of certain pressure difference specific pressure is large, think that these two little small-bore pipelines of small-bore pipeline middle outlet place pressure values exist fluid to run off, give described alarm transmission alarm signal, give the electric control valve transmission shutdown signal that is positioned at this small-bore pipeline ingress, described alarm is connected with described controller, when reporting to the police after the alarm signal of receiving described controller, and shows fluid loss position.
Described electric control valve is connected with described controller, is positioned at each small-bore pipeline ingress, when closing after the shutdown signal of receiving described controller, stops fluid to continue to run off.
The object of the invention is to be achieved through the following technical solutions: pipeline is carried out to series-parallel connection, first the small-bore pipeline of many identical bores (relatively long) is together in parallel as a unit, then by these for unit large diameter pipeline (relatively short) be together in series.Large diameter pipeline is for gathering fluid, then average mark is to small-bore pipeline, guarantee after each unit finishes fluid flow can mean allocation to the small-bore pipeline of next unit, each small-bore pipeline in same unit does not influence each other, between separate unit, do not influence each other simultaneously, guaranteed the accuracy of testing result.Flowmeter is installed in ingress and outlet port at each small-bore pipeline, the flowmeter in ingress and outlet port is connected on controller simultaneously, for detection of the flow value in small-bore pipeline ingress and outlet port one-period, flowmeter one-period finishes rear automatic clear, again metering, cycle time, length was set as the case may be.In the situation that not there is not fluid loss, the flow value in each small-bore pipeline ingress and outlet port equates.In the situation that certain small-bore pipeline generation fluid runs off, the flow value in this entrance place and outlet port just has difference, and the flow value at this entrance place should be larger than the flow value in outlet port.Flowmeter can be transferred to controller by the flow value in one-period, controller is set with difference in flow threshold value (setting as the case may be), when controller compares the poor threshold value than setting of two flow values of input when large, just think fluid loss has occurred, controller is connected with electric control valve with alarm, controller transmits alarm signal to alarm, alarm equipment alarm, and report fluid loss position, controller is to the electric control valve transmission shutdown signal that is positioned at this small-bore pipeline ingress, electric control valve is closed, and stops fluid to continue to run off.Due to large flow average mark is made into small flow, the small flow that is easier to test fluid runs off, and has improved detection level.And can judge roughly that by judging which small-bore pipeline occurs to run off fluid the position of running off occurs and stops fluid to continue to run off.
Also can detect the rate of flow of fluid in small-bore pipeline ingress and outlet port at the ingress of each small-bore pipeline and the flowmeter in outlet port.In the situation that not there is not fluid loss, the rate of flow of fluid in each small-bore pipeline ingress and outlet port equates, in the case of the fluid generation in certain small-bore pipeline is run off, the rate of flow of fluid in this entrance place and outlet port just has difference, and the rate of flow of fluid value at this entrance place should be larger than the rate of flow of fluid value in outlet port.Flowmeter can be transferred to controller by the rate of flow of fluid value of detection, controller is set with rate of flow of fluid difference limen value (setting as the case may be), when controller compares the difference of rate of flow of fluid value of input when larger than rate of flow of fluid difference limen value, just think fluid loss has occurred, controller is connected with electric control valve with alarm, controller transmits alarm signal to alarm, alarm equipment alarm, and report fluid loss position, controller is to the electric control valve transmission shutdown signal that is positioned at this small-bore pipeline ingress, electric control valve is closed, and stops fluid to continue to run off.Can judge roughly that by judging which small-bore pipeline occurs to run off fluid the position of running off occurs and stops fluid to continue to run off.
Pressure transducer is positioned at each small-bore pipeline in parallel outlet port of each small-bore pipeline unit in parallel, be connected with controller, for detection of the pressure values in each small-bore pipeline in parallel outlet port, while not existing fluid to run off in each small-bore pipeline in parallel, each small-bore pipeline in parallel outlet port pressure should equate, be that pressure difference is zero, in the case of the fluid in certain small-bore pipeline occurs to run off, small-bore pipeline in parallel outlet port pressure should have difference, should be less than the pressure values in outlet port that the small-bore pipeline that fluid runs off does not occur in the pressure values that the small-bore pipeline outlet port that fluid runs off occurs.The pressure values of detection is transferred to controller by pressure transducer, controller is set with pressure difference threshold value (setting as the case may be), controller is by poor between two all pressure values of pressure transducer input, by difference and the comparison of pressure difference threshold value, if the strong difference limen value of certain pressure difference specific pressure is large, think that these two small-bore pipeline outlet port little small-bore pipelines of pressure values exist fluid to run off, controller is connected with electric control valve with alarm, controller transmits alarm signal to alarm, alarm equipment alarm, and report fluid loss position, controller is to the electric control valve transmission shutdown signal that is positioned at this small-bore pipeline ingress, electric control valve is closed, stop fluid to continue to run off.Can judge roughly that by judging which small-bore pipeline occurs to run off fluid the position of running off occurs and stops fluid to continue to run off.
Detecting that after fluid loss, system can be passed through alarm initiative alarming, and reporting fluid loss position, reaching the object of pipeline fluid leak detection and coarse localization.
Detecting that after fluid loss, system can be by the break-make of electric control valve control small-bore pipeline, reach and stop pipeline fluid to continue the object running off.
Controller also can comprehensively compare the flow value of the threshold value of setting and input, rate of flow of fluid value and pressure values, according to above-mentioned analysis of strategies judgement, the signal of analyzing after judgement is transferred to alarm and electric control valve, improves and detects and precise control.
Compared with prior art, the invention has the beneficial effects as follows, whether can monitor in real time pipeline fluid runs off, occur can judge roughly fluid loss position in the situation that of loss at pipeline fluid, stop fluid to continue to run off, and designed pipeline fluid leakage detection apparatus has, and simple to operate, applying flexible, reliability are high, testing precision advantages of higher.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of novel fluid leakage detection apparatus of the present invention.(seeing Fig. 1)
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
If fluid flows into from A end, first gather through large diameter pipeline, then on average flow into C, two small-bore pipelines of D, C, D pipeline form an independent small-bore pipeline unit in parallel, between two pipelines, do not influence each other, and between separate unit, do not influence each other, guaranteed the accuracy of testing result.Flowmeter 1 and flowmeter 2 are equipped with respectively in C entrance place and outlet port, and flowmeter 1 is all connected with controller 5 with flowmeter 2, and controller 5 is connected with alarm 6, electric control valve 9.Flowmeter 1 and flowmeter 2 detect respectively the flow value in pipeline C ingress and outlet port one-period, and the flow value of detection is transferred to controller 5, if pipeline C does not exist fluid to run off, the flow value that flowmeter 1 detects so should equate with the flow value that flowmeter 2 detects; If pipeline C exists fluid to run off, the flow value that the flow value that flowmeter 1 detects so detects specific discharge meter 2 is large, namely between two flowmeters, has difference in flow.The flow value of detection is transferred to controller 5 by flowmeter 1 and flowmeter 2, controller 5 is set with difference in flow threshold value, controller 5 can be by the difference of these two flow values and the comparison of difference in flow threshold value, if this difference in flow specific discharge difference limen value is large, illustrate that pipeline C exists fluid to run off, controller 5 transmits alarm signal to alarm 6, and alarm 6 is reported to the police, and display pipes C exists fluid to run off; Controller 5 transmits shutdown signal to electric control valve 9, and electric control valve 9 is closed, and stops fluid to continue to run off.Flowmeter 3 and flowmeter 4 are equipped with respectively in D entrance place and outlet port, and flowmeter 3 is all connected with controller 5 with flowmeter 4, and controller 5 is connected with alarm 6 and electric control valve 10.Its detection and control procedure are identical with C pipe detection and deterministic process.
Flowmeter 1 and flowmeter 2 also can detect the rate of flow of fluid in pipeline C ingress and outlet port, if pipeline C exists fluid to run off, the rate of flow of fluid value that the rate of flow of fluid value that flowmeter 1 detects so answers specific discharge meter 2 to detect is large, namely between two flowmeters, exist rate of flow of fluid poor, if pipeline C does not exist fluid to run off, the rate of flow of fluid value that the rate of flow of fluid value that flowmeter 1 detects so should detect with flowmeter 2 equates; The rate of flow of fluid value of detection is transferred to controller 5 by flowmeter 1 and flowmeter 2, controller 5 is set with rate of flow of fluid difference limen value, controller 5 is by the difference of two rate of flow of fluid values and the comparison of rate of flow of fluid difference limen value, if this rate of flow of fluid is poor larger than rate of flow of fluid difference limen value, illustrate that pipeline C exists fluid to run off, controller 5 transmits alarm signal to alarm 6, and alarm 6 is reported to the police, and display pipes C exists fluid to run off; Controller 5 transmits shutdown signal to electric control valve 9, and electric control valve 9 is closed, and stops fluid to continue to run off.Flowmeter 3 and flowmeter 4 are equipped with respectively in D entrance place and outlet port, and flowmeter 3 is all connected with controller 5 with flowmeter 4, and controller 5 is connected with alarm 6 electric control valves 10.Its detection and control procedure are identical with C pipe detection and deterministic process.
Pressure transducer 7 and pressure transducer 8 lay respectively at pipeline C and pipeline D outlet port, and be connected with controller 5, for monitoring the pressure values in pipeline C and pipeline D outlet port, in the time that pipeline C and pipeline D do not exist fluid to run off, two pipeline exit pressure should equate, pressure difference is zero; If pipeline C exists fluid to run off, when pipeline D does not exist fluid to run off, the pressure in pipeline C outlet port should be less than the pressure in pipeline D outlet port, and pipeline C outlet port and pipeline D outlet port exist pressure difference; The pressure values of detection is transferred to controller 5 by pressure transducer 7 and pressure transducer 8, controller 5 is provided with pressure difference threshold value, controller 5 is by the difference of two pressure values and the comparison of pressure difference threshold value, if this pressure difference exists fluid to run off than the large explanation of pressure difference limen value, and the small-bore pipeline that pressure is little exists fluid to run off, controller 5 transmits alarm signal to alarm 6, and alarm 6 is reported to the police, and report fluid loss position; Controller 5 transmits shutdown signal to electric control valve 9, and electric control valve 9 is closed, and stops fluid to continue to run off.If pipeline C does not exist fluid to run off, pipeline D exists fluid to run off, and its Detection & Controling process is identical with said process.
Controller also can comprehensively compare the flow value of the threshold value of setting and input, rate of flow of fluid value and pressure values, according to above-mentioned analysis of strategies judgement, the signal of analyzing after judgement is transferred to alarm and electric control valve, improves and detects and precise control.
Claims (9)
1. novel pipeline fluid leak detection device, is characterized in that, comprises small-bore pipeline, large diameter pipeline, flowmeter, pressure transducer, controller, alarm, electric control valve; Described small-bore pipeline composes in parallel pipeline unit in parallel; Described large diameter pipeline units in series composition in parallel with pipeline pipeline; Described flowmeter is arranged on ingress and the outlet port of each small-bore pipeline, for detection of the flow value in small-bore pipeline ingress and outlet port one-period, and the flow value of detection is transferred to described controller; Described flowmeter can detect the rate of flow of fluid in ingress and the outlet port of small-bore pipeline simultaneously, and the rate of flow of fluid value of detection is transferred to described controller; Described pressure transducer is positioned at each small-bore pipeline in parallel outlet port of each small-bore unit in parallel, is connected with described controller, for detection of the pressure values in each small-bore pipeline in parallel outlet port, and the pressure values of detection is transferred to described controller;
Described controller is connected with described pressure transducer with described flowmeter, for according to alarm and described electric control valve described in the testing signal of the testing signal of described flowmeter, described pressure transducer and predetermined policy control:
Described predetermined policy comprises: in described controller, be provided with difference in flow threshold value, the flow value of detection is transferred to controller by the flowmeter that is positioned at same small-bore pipeline ingress and outlet port, if the difference specific discharge difference limen value of two flow values is large, think that this small-bore pipeline exists fluid to run off, give described alarm transmission alarm signal, give the electric control valve transmission shutdown signal that is positioned at this small-bore pipeline ingress; In described controller, be provided with rate of flow of fluid difference limen value, the rate of flow of fluid value of detection is transferred to controller by the flowmeter that is positioned at same small-bore pipeline ingress and outlet port, controller is by the difference of two rate of flow of fluid values and the comparison of rate of flow of fluid difference limen value, if the difference of two rate of flow of fluid values is larger than rate of flow of fluid difference limen value, think that this small-bore pipeline exists fluid to run off, give described alarm transmission alarm signal, give the electric control valve transmission shutdown signal that is positioned at this small-bore pipeline ingress; In described controller, be provided with pressure difference threshold value, the pressure values of detection is transferred to controller by the pressure transducer that is positioned at each small-bore pipeline in parallel outlet port, controller is by poor between two all pressure values that receive, and by difference and the comparison of pressure difference threshold value, if the strong difference limen value of certain pressure difference specific pressure is large, think that pressure values little small-bore pipeline in outlet port exists fluid to run off, give described alarm transmission alarm signal, give the electric control valve transmission shutdown signal that is positioned at this small-bore pipeline ingress;
Described alarm is connected with described controller, when reporting to the police after the alarm signal of receiving described controller;
Described electric control valve is connected with described controller, is positioned at each small-bore pipeline ingress, when closing after the shutdown signal of receiving described controller, stops fluid to continue to run off.
2. novel pipeline fluid leak detection device according to claim 1, is characterized in that, difference in flow threshold value, current difference threshold value and pressure difference threshold value that controller is set can be set according to actual conditions.
3. novel pipeline fluid leak detection device according to claim 1, is characterized in that, the metering cycle of described flowmeter can be set according to actual conditions, and flowmeter one-period finishes rear automatic clear, again metering.
4. novel pipeline fluid leak detection device according to claim 1, is characterized in that, leakage detection apparatus can only comprise any in flowmeter and pressure transducer, also can comprise flowmeter and pressure transducer simultaneously.
5. according to claim 1 and novel pipeline fluid leak detection device claimed in claim 4, it is characterized in that, in the time that leakage detection apparatus comprises flowmeter and pressure transducer simultaneously, the difference of the pressure values that the difference of the rate of flow of fluid value that poor, the flowmeter of the flow value that flowmeter detects detects or pressure transducer detect any one while reaching predetermined threshold, alarm equipment alarm, and report fluid loss position, the electric control valve that is positioned at this small-bore pipeline ingress is closed.
6. novel pipeline fluid leak detection device according to claim 1, is characterized in that, also comprises generating electric accumulator, and described generating electric accumulator provides energy for whole leakage detection apparatus.
7. novel pipeline fluid leak detection method, is characterized in that, described large diameter pipeline units in series composition in parallel with small-bore pipeline pipeline, and the method comprises:
In the time that the difference of the flow value in described small-bore pipeline ingress and outlet port is greater than difference in flow threshold value, alarm equipment alarm, the electric control valve that is positioned at this small-bore pipeline ingress is closed;
In the time that the difference of the rate of flow of fluid value in described small-bore pipeline ingress and outlet port is greater than rate of flow of fluid difference limen value, alarm equipment alarm, the electric control valve that is positioned at this small-bore pipeline ingress is closed;
In the time that the difference of the pressure values in each small-bore pipeline in parallel outlet port of each unit in parallel is greater than pressure difference threshold value, the small-bore pipeline that outlet port pressure is little exists fluid to run off, alarm equipment alarm, and the electric control valve that is positioned at this small-bore pipeline ingress is closed.
8. novel pipeline fluid leak detection method according to claim 7, it is characterized in that, can select flow as detected parameters, can select rate of flow of fluid as detected parameters, can select pressure as detected parameters, also can select flow, rate of flow of fluid and pressure simultaneously as detected parameters.
9. novel pipeline fluid leak detection method according to claim 7, it is characterized in that, when selecting flow, rate of flow of fluid and pressure simultaneously as detected parameters, when exceeding the threshold value of setting, the arbitrary parameter in poor, the difference of rate of flow of fluid value and the difference of pressure values of flow value sends alarm signal and shutdown signal.
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| CN201310093727.4A CN103807607A (en) | 2013-03-12 | 2013-03-12 | Novel device and method for detecting leakage of fluids in pipelines |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104456093A (en) * | 2014-11-13 | 2015-03-25 | 宁夏中远天宇科技有限公司 | Flow alarming system for underground heat distribution pipeline leakage |
| CN105628114A (en) * | 2016-01-06 | 2016-06-01 | 朱小菊 | Bernoulli intelligent water meter |
| CN105674058A (en) * | 2016-03-15 | 2016-06-15 | 东华大学 | Intelligent running water pipe |
| CN105782728A (en) * | 2016-04-29 | 2016-07-20 | 刘金玉 | Fluid leakage monitoring device and method |
| CN106369284A (en) * | 2016-08-19 | 2017-02-01 | 中铁隧道勘测设计院有限公司 | Early warning device for boosting of municipal administration water supply pipes in long and large underwater traffic tunnel |
| CN107035974A (en) * | 2017-05-07 | 2017-08-11 | 安凯 | A kind of underground piping leakage inspector and its detection method |
| CN107544409A (en) * | 2017-08-28 | 2018-01-05 | 鑫鹏源智能装备集团有限公司 | Pipe leakage monitoring device and system |
| CN109711236A (en) * | 2018-07-10 | 2019-05-03 | 永康市胜时电机有限公司 | Heating equipment leak state twin-stage verifying bench |
| CN109915734A (en) * | 2019-04-15 | 2019-06-21 | 况敏 | Monitoring pipeline safety instrument and method for early warning |
| CN113090960A (en) * | 2021-04-21 | 2021-07-09 | 北京科技大学 | Filling slurry pipeline leakage monitoring system and method |
| CN114025251A (en) * | 2021-11-03 | 2022-02-08 | 国家石油天然气管网集团有限公司华南分公司 | Method, device and medium for alarming abnormality of instrument |
| CN114383050A (en) * | 2021-12-30 | 2022-04-22 | 普联力量流体控制(上海)有限公司 | Intelligent pressure regulating method for water supply pipe network |
| CN114877263A (en) * | 2022-04-27 | 2022-08-09 | 华中科技大学 | Pipeline micro-leakage characteristic information monitoring method, system, equipment and medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456093A (en) * | 2014-11-13 | 2015-03-25 | 宁夏中远天宇科技有限公司 | Flow alarming system for underground heat distribution pipeline leakage |
| CN105628114A (en) * | 2016-01-06 | 2016-06-01 | 朱小菊 | Bernoulli intelligent water meter |
| CN105674058A (en) * | 2016-03-15 | 2016-06-15 | 东华大学 | Intelligent running water pipe |
| CN105782728B (en) * | 2016-04-29 | 2018-07-13 | 刘金玉 | A kind of fluid leakage monitoring device and monitoring method |
| CN105782728A (en) * | 2016-04-29 | 2016-07-20 | 刘金玉 | Fluid leakage monitoring device and method |
| CN106369284A (en) * | 2016-08-19 | 2017-02-01 | 中铁隧道勘测设计院有限公司 | Early warning device for boosting of municipal administration water supply pipes in long and large underwater traffic tunnel |
| CN107035974B (en) * | 2017-05-07 | 2018-10-16 | 安凯 | A kind of underground piping leakage inspector and its detection method |
| CN107035974A (en) * | 2017-05-07 | 2017-08-11 | 安凯 | A kind of underground piping leakage inspector and its detection method |
| CN107544409A (en) * | 2017-08-28 | 2018-01-05 | 鑫鹏源智能装备集团有限公司 | Pipe leakage monitoring device and system |
| CN109711236A (en) * | 2018-07-10 | 2019-05-03 | 永康市胜时电机有限公司 | Heating equipment leak state twin-stage verifying bench |
| CN109711236B (en) * | 2018-07-10 | 2021-01-01 | 徐州荣华新型建材有限公司 | Heating facility water leakage state two-stage inspection system |
| CN109915734A (en) * | 2019-04-15 | 2019-06-21 | 况敏 | Monitoring pipeline safety instrument and method for early warning |
| CN113090960A (en) * | 2021-04-21 | 2021-07-09 | 北京科技大学 | Filling slurry pipeline leakage monitoring system and method |
| CN114025251A (en) * | 2021-11-03 | 2022-02-08 | 国家石油天然气管网集团有限公司华南分公司 | Method, device and medium for alarming abnormality of instrument |
| CN114383050A (en) * | 2021-12-30 | 2022-04-22 | 普联力量流体控制(上海)有限公司 | Intelligent pressure regulating method for water supply pipe network |
| CN114877263A (en) * | 2022-04-27 | 2022-08-09 | 华中科技大学 | Pipeline micro-leakage characteristic information monitoring method, system, equipment and medium |
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