CN205957301U - Pipeline monitoring system - Google Patents
Pipeline monitoring system Download PDFInfo
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- CN205957301U CN205957301U CN201620854389.0U CN201620854389U CN205957301U CN 205957301 U CN205957301 U CN 205957301U CN 201620854389 U CN201620854389 U CN 201620854389U CN 205957301 U CN205957301 U CN 205957301U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000009413 insulation Methods 0.000 claims description 16
- 230000004888 barrier function Effects 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910001120 nichrome Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 27
- 239000010959 steel Substances 0.000 description 27
- 238000001514 detection method Methods 0.000 description 22
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
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Abstract
The utility model provides a pipeline monitoring system, including sensing line, feedback line and monitor, when liquid was leaked to the optional position of being said by monitoring pipe, the leakage liquid in the pipe insulating layer makes was looped in by monitoring pipe way, sensing line and monitor switch -on, and the magnitude of voltage sureness between the monitor is used for saying according to the sensing line with by monitoring pipe is said whether leak liquid by monitoring pipe. This system not only can in time find the leakage of heat supply pipeline to can pinpoint the pipeline leakage point through the hole of the rule that distributes on the sensing line insulating layer, improve positioning accuracy, effectively the monitoring pipe way leakage condition.
Description
Technical field
This utility model is related to electronic technology field and in particular to a kind of pepe monitoring system.
Background technology
With the propulsion of urbanization process, city is increasing to the demand of central heating, the laying of Direct-Buried Heating Pipeline
Network is also gradually expanding.With the long-play of heat supply pipeline, because pipeline is aging, geology changes, it is bad etc. former to construct
Cause, easily leads to the leakage of directly buried pipeline.Therefore, each bar pipe leakage situation be accurately positioned pipe in real-time monitoring pipeline network
Road leakage point is most important.
At present, the Aulomatizeted Detect application of Monitoring Pinpelines is relatively fewer, and most of heat supply pipeline still adopts backward in technique
Manual inspection mode, is difficult to find in time for early stage more hidden pipe leakage, reports to the police not in time, once leakage occurs, will
Lead to large-area confession heat leak.Therefore, with heating demand more and more higher, the promptness of pipe leakage monitoring and accuracy have
Wait to improve.
Utility model content
The technical problems to be solved in the utility model is to overcome the real-time in prior art, pipe leakage being monitored relatively
Difference and the relatively low defect of positional accuracy.
This utility model provides a kind of pepe monitoring system, including：
Sensing line, described sensing line is embedded in the heat-insulation layer of monitored pipeline, and described sensing line is enclosed with insulating barrier, institute
State insulating barrier and the through hole that make described sensing line exposed on along its length, is distributed with, when monitored pipe leakage liquid, described
Insulation in the layer leakage liquid contacts described sensing line by described through hole；
Feedback line, described feedback line is embedded in the heat-insulation layer of monitored pipeline, described feedback line and described sensing line
One end connects；
Monitor, described monitor is connected with the other end of described sensing line and described feedback line respectively, described monitor
Also it is connected with monitored pipeline；
When the optional position leakage liquid of monitored pipeline, described insulation in the layer leakage liquid makes described monitored pipe
Formation loop connected by road, described sensing line with described monitor, and described monitor is used for according to described sensing line and described is supervised
Magnitude of voltage between test tube road determines described monitored pipeline whether leakage liquid.
Preferably, it is provided with described monitor for described monitored pipeline, described sensing line and described feedback
Line provides the power supply of voltage, and described power supply is constant pressure source.
Preferably, described sensing line is nichrome wire.
Preferably, described feedback line is the copper cash being enclosed with insulating barrier.
Correspondingly, this utility model also provides a kind of piping network monitoring system, including：
Multiple above-mentioned pepe monitoring systems, are separately positioned at each bar pipeline in described piping network, for monitoring
State the leak condition of each bar pipeline；
Multiple positioners, are separately positioned at each described pepe monitoring system, for determining described Monitoring Pinpelines system
The position of system；
Remote monitoring terminal, connects each described pepe monitoring system and the plurality of positioner, described for receiving
The leak condition of each bar pipeline and the position of described pepe monitoring system.
Technical solutions of the utility model, have the advantage that：
The pepe monitoring system that this utility model provides, including sensing line, feedback line and monitor, when monitored pipeline
During the leakage liquid of optional position, pipe insulation in the layer leakage liquid makes monitored pipeline, sensing line connect formation with monitor
Loop, monitor is used for determining monitored pipeline whether leakage liquid according to the magnitude of voltage between sensing line and monitored pipeline.
This system can not only find the leakage of heat supply pipeline in time, and can be by sensing the Kong Zhun of distribution rule on line insulating layer
Determine position pipe leakage point, improve positioning precision, effectively monitor pipe leakage situation.
Brief description
In order to be illustrated more clearly that this utility model specific embodiment or technical scheme of the prior art, below will be right
In specific embodiment or description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, below describe
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of pepe monitoring system；
Fig. 2 is a kind of circuit theory diagrams of pepe monitoring system leakage monitoring；
Fig. 3 is a kind of structural representation of piping network monitoring system；
Fig. 4 is a kind of flow chart of pipeline leakage detection method；
Fig. 5 is the circuit theory diagrams that a kind of pepe monitoring system is calibrated automatically；
Fig. 6 is the circuit theory diagrams that a kind of pepe monitoring system is calibrated automatically；
Fig. 7 is a kind of circuit theory diagrams of pepe monitoring system leakage positioning.
Wherein, 1- sensing line, 2- feedback line, 3- pipeline steel pipe, 4- conduit enclosure, 5- pipe insulating layer, 6- monitor, 7-
Constant pressure source.
Specific embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described it is clear that described
Embodiment is a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, this
The every other embodiment that field those of ordinary skill is obtained under the premise of not making creative work, broadly falls into this practicality
Novel protected scope.
In description of the present utility model, " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that term
Directly ", the orientation of instruction such as " level ", " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, are only
For the ease of description this utility model with simplify description, rather than instruction or the hint device of indication or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or hint relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly
Connect；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary,
Can also be the connection of two element internals, can be wireless connection or wired connection.Common skill for this area
For art personnel, concrete meaning in this utility model for the above-mentioned term can be understood with concrete condition.
As long as additionally, involved technical characteristic in this utility model different embodiments disclosed below is each other
The conflict of not constituting just can be combined with each other.
Embodiment 1
The present embodiment provides a kind of pepe monitoring system, as shown in Figure 1.Monitored pipeline is metallic conduit, in pipe line steel
The outer layer of pipe 3 has pipe insulating layer 5 and conduit enclosure 4.It is monitored pipe section between the ends A of pipeline steel pipe 3 and B.Pipe
Road heat-insulation layer 5 adopts insulant, it is possible to use foam.In the heat-insulation layer 5 of monitored pipeline, along the pre-buried biography of axial direction of pipeline
Sense line 1 and feedback line 2, one end of sensing line 1 and feedback line 2 connects outside the B end of pipeline steel pipe 3.
This pepe monitoring system includes sensing line 1, feedback line 2 and monitor 6.Sensing line 1 is enclosed with insulating barrier, described exhausted
Edge layer is distributed with the through hole making sensing line 1 exposed on along its length, when monitored pipe leakage liquid, in heat-insulation layer 5
Leakage liquid passes through described through hole sensing contact line 1.Sensing line insulating layer adopts the hole of regular distribution, with exposed tinsel phase
Ratio accuracy of leak point positioning when effectively increasing leakage on a large scale.Monitor 6 respectively with sensing line 1 and feedback line 2 another
One end connects outside the A end of pipeline steel pipe 3, and monitor 6 is also connected with the A end of pipeline steel pipe 3.
When the optional position leakage liquid of monitored pipeline, the leakage liquid in pipe insulating layer 5 make pipeline steel pipe 3,
Formation loop connected by sensing line 1 with monitor 6.Monitor 6 is used for true according to the magnitude of voltage between sensing line 1 and pipeline steel pipe 3
Fixed monitored pipeline whether leakage liquid.
This system can not only find the leakage of heat supply pipeline in time, and can be by sensing distribution rule on line insulating layer
Hole then is accurately positioned pipe leakage point, improves positioning precision, effectively monitors pipe leakage situation.
As a preferred embodiment, it is provided with monitor 6 for pipeline steel pipe 3, sensing line 1 and feedback
Line 2 provides the power supply of voltage, and described power supply adopts constant pressure source 7, as shown in Figure 2.From constant pressure source, there is the electricity better than constant-current source
Pressure stability.
Specifically, reference voltage U, this reference voltage U quilt are applied between one end and the A end of pipeline steel pipe 3 of sensing line 1
The resistance RF segmentation of the internal resistance R1 of monitor 6 and pipe insulating layer 5.If pipeline leaks, heat-insulation layer 5 is in drying
State, then resistance RF very high so that the voltage U1 on internal resistance R1 is very low.If pipeline leaks at C point, leakage fluid
Body enters pipe insulating layer 5 by C point, makes the short circuit at pipe leakage point C of sensing line 1 and pipeline steel pipe 3, and resistance RF can reduce,
The voltage U1 on internal resistance R1 is led to increase.When voltage U1 exceedes predetermined value, system determines monitored pipe leakage liquid.
As a specific embodiment, sense line 1 and adopt nichrome wire, feedback line 2 is to be enclosed with insulating barrier
Copper cash.Sensing line 1 is the different wire of two root architectures with feedback line 2, all has certain resistance value, and sensing line 1 is used for measuring
Voltage, feedback line 2 is used for transmission signal.
Embodiment 2
The present embodiment provides a kind of piping network monitoring system, structural representation such as Fig. 3 of this piping network monitoring system
Shown, including multiple pepe monitoring systems 31 as described in Example 1, multiple positioner 32 and remote monitoring terminal 33.
This piping network monitoring system includes N bar pipeline 30, is correspondingly arranged on N number of pepe monitoring system in every pipeline
31, for monitoring the leak condition of each bar pipeline.At N number of pepe monitoring system, it is correspondingly arranged N number of positioner 32, is used for
Determine the position of each pepe monitoring system.
Remote monitoring terminal 33, is connected with N number of pepe monitoring system 31 and N number of positioner 32 respectively, each for receiving
The leak condition of bar pipeline and the position of corresponding pepe monitoring system.As a concrete implementation mode, each pipeline is supervised
Pipe leakage information and the positional information of corresponding positioner that examining system 31 monitors, wirelessly can be passed by mobile network
Transport to remote monitoring terminal 33.Further, remote monitoring terminal 33 can also represent piping network by patterned mode
Real time status information.
This piping network monitoring system can monitor the leakage situation of the every pipeline in piping network, and will manage in time
The situation of road leakage and positional information send to remote monitoring terminal, only effectively do not monitor the leakage situation of piping network, and
And be easy to engineering and layout installation.
Embodiment 3
The present embodiment provides a kind of pipeline leakage detection method, and the flow chart of the method is as shown in figure 4, specifically include following
Step：
S1：The leakage point obtaining in detection line in detected pipe insulating layer is electric to the first voltage of pipe ends and second
Pressure.As a concrete implementation mode, as shown in figure 5, obtaining detection line in detected pipe insulating layer 5 first sense line
Leakage point C on 1 to pipeline steel pipe A end first voltage U2；As shown in fig. 6, obtaining detection in detected pipe insulating layer 5 again
Line senses the leakage point C on line 1 to second voltage U3 of pipe line steel pipe B end.
S2：According to described first voltage and described second voltage, the physical length of described detected pipeline is calibrated,
Determine the calibration length of the described detected pipeline after calibration.Specifically, first voltage U2 is the voltage of L2 part on sensing line,
Correspond to from leakage point C to the distance at pipeline steel pipe A end；Second voltage U3 is the voltage of (L-L2) part on sensing line, corresponding from
Leakage point C to pipe line steel pipe B end distance, reality that therefore can be according to first voltage U2 and second voltage U3 to detected pipeline
Length L is that the distance at pipeline steel pipe A end to B end is calibrated, so that it is determined that the calibration length of the detected pipeline after calibration.
Because directly buried pipeline is in underground, the real time temperature of pipeline local environment and humidity can become with surrounding
Change, the accuracy thus leading to the real-time voltage of line leakage and resistance to change therewith, to pipeline leakage testing and positioning
Impact.Therefore, in locating leaks in pipes point, the physical length using detected pipeline will affect the standard of leak point positioning
Really property.According to real-time voltage, the physical length of detected pipeline is calibrated, using the detected duct length meter after calibration
Calculate the position of pipe leakage point, it is possible to increase the accuracy of pipe leakage positioning.
S3：Obtain the leakage point in detection line in detected pipe insulating layer to the tertiary voltage of pipeline one end.As one
Individual concrete implementation mode, as shown in fig. 7, obtain detection line in detected pipe insulating layer 5 sense the leakage point C on line 1
Tertiary voltage U4 to pipeline steel pipe A end.
S4：Described detected pipe leakage point is determined according to the calibration length of described tertiary voltage and described detected pipeline
Position.Specifically, tertiary voltage U4 corresponds to from leakage point C to the distance at pipeline steel pipe A end.Therefore, according to tertiary voltage U4
With the calibration length of described detected pipeline, can determine the position of described detected pipe leakage point, that is, from leakage point C to pipe
The distance at road steel pipe A end.
This pipeline leakage detection method passes through to obtain the leakage point being detected in detection line in pipe insulating layer to pipeline two
The first voltage at end and second voltage, so that it is determined that the calibration length of detected pipeline, then obtain in detected pipe insulating layer
Leakage point in detection line to pipeline one end tertiary voltage, long according to the calibration of described tertiary voltage and described detected pipeline
Degree determines the position of detected pipe leakage point.This pipeline leakage detection method is according to the magnitude of voltage recording in real time to duct length
Calibrated, improve positioning precision, pipe leakage point can be accurately positioned, effectively monitored pipe leakage situation.
As one preferred embodiment, first voltage or second voltage are additionally operable to determine leakage of detected pipeline etc.
Level.Specifically, as shown in Fig. 2 the leakage class of pipeline can be detected according to first voltage.First, in one end of sensing line 1
Apply reference voltage U, the internal resistance R1 of the monitored device of this reference voltage U 6 and pipe insulating layer 5 and the A end of pipeline steel pipe 3 between
Resistance RF segmentation.If pipeline leaks, heat-insulation layer 5 is in drying regime, then resistance RF very high so that internal resistance
Voltage U1 on R1 is very low.If pipeline leaks at C point, leakage liquid enters pipe insulating layer 5 by C point, makes sensing
The short circuit at pipe leakage point C of line 1 and pipeline steel pipe 3, resistance RF can reduce, and leads to the voltage U1 on internal resistance R1 to increase.When
When voltage U1 exceedes predetermined value, determine monitored pipe leakage liquid.
Further, by changing the resistance of internal resistance R1, according to the voltage U1 on internal resistance R1 it is possible to according to formula
(1) calculate the resistance RF of pipe insulating layer 5.
Wherein, U is the reference voltage of input, and R1 is the internal resistance of monitored device 6, and U1 is the voltage on internal resistance R1, RF
Resistance for pipe insulating layer 5.
According to the resistance RF of pipe insulating layer 5, set different resistance value scopes, thus the different leakage class of correspondence.
Specifically, grade can be will leak out and be divided into 15 grades, be represented with L0 to L14 respectively.Represent leak grade more and more higher from L14 to L1,
Wherein L0 represents does not have pipe leakage.When monitoring that pipeline occurs leakage and described leakage class is higher than L10, monitor is carried out
The detection of leakage point position.
Before locating leaks in pipes point, first the length of pipeline is calibrated, to ensure the standard of pipe leakage point location
Really property.Specifically, physical length L of detected pipeline is calibrated, need to obtain detection line in detected pipe insulating layer
On leakage point to the first voltage of pipe ends and second voltage.Therefore, above-mentioned steps S1 also include following sub-step：
S11：Add positive first reference voltage in detection line in detected pipe insulating layer, obtain detected pipe insulation
In layer the leakage point in detection line to pipeline one end first voltage.As shown in figure 5, in the termination of sensing line 1 and feedback line 2
Termination applies positive first reference voltage U, and now the positive of reference voltage U connects sensing line 1.Using the measurement of digital-to-analogue conversion device
Go out to sense first voltage U2 between line 1 and pipeline steel pipe 3, first voltage U2 is the voltage of L2 part on sensing line, corresponding from
Leakage point C to pipeline steel pipe A end distance.
S12：Add reverse first reference voltage in detection line in detected pipe insulating layer, obtain detected pipe insulation
In layer the leakage point in detection line to the pipeline other end second voltage.As shown in fig. 6, in the termination of sensing line 1 and feedback line 2
Termination apply reverse first reference voltage U, now the positive of reference voltage U connects feedback line 2.Surveyed using digital-to-analogue conversion device
Measure second voltage U3 between sensing line 1 and pipeline steel pipe 3, second voltage U3 is the voltage of (L-L2) part on sensing line,
Correspond to from leakage point C to the distance of pipe line steel pipe B end.
According to first voltage U2 and second voltage U3, physical length L of detected pipeline is calibrated.Calibration length L1
It is calculated by formula (2)：
Wherein, L1 is the calibration length of detected pipeline, and L is the physical length of detected pipeline, and U is the first benchmark electricity
Pressure, U2 and U3 is respectively first voltage and second voltage.
The duct length calibration of this pipeline leakage detection method combines the magnitude of voltage under real time temperature and humidity residing for pipeline,
By calculating the calibration length obtaining pipeline, replace pipeline physical length with the calibration length of pipeline, improve leakage positioning
Accuracy.
After the completion of duct length calibration, need to calibrate length according to pipeline, determine pipe leakage position.Therefore, above-mentioned step
Rapid S3 also includes following sub-step：
S31：Add the second reference voltage in detection line in detected pipe insulating layer, obtain in detected pipe insulating layer
Leakage point in detection line to pipeline one end tertiary voltage.Specifically, as shown in fig. 7, in the sensing termination of line 1 and feedback line
2 termination applies the second reference voltage U0.Measure leakage point C and the pipeline steel pipe 3 on sensing line 1 using digital-to-analogue conversion device
A end between tertiary voltage U4, tertiary voltage U4 is the voltage of L2 part on sensing line, corresponding from leakage point C to pipe line steel
The distance at pipe A end.
Determine the position of described detected pipe leakage point according to the calibration length of tertiary voltage and described detected pipeline,
Determine the leakage point in detection line in described detected pipe insulating layer to the distance of pipeline one end.Partial pressure using resistance is former
Manage and to determine the position of pipe leakage point C.The position determining pipe leakage point C is calculated by formula (3) it is known that pipe leakage
Point C should be in the position from sensing end L2 rice.
Wherein, L2 be leakage point C to pipeline one end A that in detected pipe insulating layer, detection line senses on line 1 away from
From L1 is the calibration length of detected pipeline, and U0 is the second reference voltage, and U4 is tertiary voltage.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.Right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And the obvious change thus extended out or
Change among the protection domain created still in this utility model.
Claims (5)
1. a kind of pepe monitoring system is it is characterised in that include：
Sensing line, described sensing line is embedded in the heat-insulation layer of monitored pipeline, and described sensing line is enclosed with insulating barrier, described exhausted
Edge layer is distributed with the through hole making described sensing line exposed, when monitored pipe leakage liquid, described insulation on along its length
In the layer leakage liquid contacts described sensing line by described through hole；
Feedback line, described feedback line is embedded in the heat-insulation layer of monitored pipeline, one end of described feedback line and described sensing line
Connect；
Monitor, described monitor is connected with described sensing line and the other end of described feedback line respectively, described monitor also with
Monitored pipeline connects；
When the optional position leakage liquid of monitored pipeline, described insulation in the layer leakage liquid make described monitored pipeline,
Formation loop connected by described sensing line with described monitor, and described monitor is used for according to described sensing line and described monitored pipe
Magnitude of voltage between road determines described monitored pipeline whether leakage liquid.
2. system according to claim 1 is it is characterised in that be provided with for described monitored in described monitor
Pipeline, described sensing line and described feedback line provide the power supply of voltage, and described power supply is constant pressure source.
3. system according to claim 1 and 2 is it is characterised in that described sensing line is nichrome wire.
4. system according to claim 1 and 2 is it is characterised in that described feedback line is the copper cash being enclosed with insulating barrier.
5. a kind of piping network monitoring system is it is characterised in that include：
Pepe monitoring system any one of multiple claim 1-4, is separately positioned on each bar in described piping network
At pipeline, for monitoring the leak condition of described each bar pipeline；
Multiple positioners, are separately positioned at each described pepe monitoring system, for determining described pepe monitoring system
Position；
Remote monitoring terminal, connects each described pepe monitoring system and the plurality of positioner, for receiving described each bar
The leak condition of pipeline and the position of described pepe monitoring system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620854389.0U CN205957301U (en) | 2016-08-05 | 2016-08-05 | Pipeline monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620854389.0U CN205957301U (en) | 2016-08-05 | 2016-08-05 | Pipeline monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205957301U true CN205957301U (en) | 2017-02-15 |
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ID=57974234
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620854389.0U Expired - Fee Related CN205957301U (en) | 2016-08-05 | 2016-08-05 | Pipeline monitoring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123109A (en) * | 2016-08-05 | 2016-11-16 | 倪晨钧 | A kind of pepe monitoring system |
| CN107219043A (en) * | 2017-05-15 | 2017-09-29 | 安凯 | A kind of water-sensitive sensor and its application method in underground piping leak water detdction |
| WO2019169869A1 (en) * | 2018-03-09 | 2019-09-12 | 深圳光峰科技股份有限公司 | Liquid leakage prevention system and heat dissipation system |
-
2016
- 2016-08-05 CN CN201620854389.0U patent/CN205957301U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123109A (en) * | 2016-08-05 | 2016-11-16 | 倪晨钧 | A kind of pepe monitoring system |
| CN106123109B (en) * | 2016-08-05 | 2022-02-15 | 倪晨钧 | Pipeline monitoring system |
| CN107219043A (en) * | 2017-05-15 | 2017-09-29 | 安凯 | A kind of water-sensitive sensor and its application method in underground piping leak water detdction |
| WO2019169869A1 (en) * | 2018-03-09 | 2019-09-12 | 深圳光峰科技股份有限公司 | Liquid leakage prevention system and heat dissipation system |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 |