CN113063901A - Device for monitoring hydrogen concentration inside oil-immersed bushing on line - Google Patents
Device for monitoring hydrogen concentration inside oil-immersed bushing on line Download PDFInfo
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- CN113063901A CN113063901A CN202110365320.7A CN202110365320A CN113063901A CN 113063901 A CN113063901 A CN 113063901A CN 202110365320 A CN202110365320 A CN 202110365320A CN 113063901 A CN113063901 A CN 113063901A
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- circuit board
- hydrogen concentration
- monitoring
- battery compartment
- annular metal
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 35
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 35
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000013500 data storage Methods 0.000 claims abstract description 7
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 7
- 239000002033 PVDF binder Substances 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 2
- 238000012806 monitoring device Methods 0.000 abstract description 2
- 230000005684 electric field Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/005—H2
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0067—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display by measuring the rate of variation of the concentration
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Computer Networks & Wireless Communication (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
And the device is used for monitoring the hydrogen concentration inside the oil-immersed bushing on line. The sleeve pipe on-line monitoring device who exists in the existing market needs to be uploaded to monitoring system through the cable and calculates and respond, and not only the practicality is not high with the lead wire of external intercommunication, can cause the influence to sheathed tube leakproofness and dielectric strength moreover, reduces the stability of transformer operation. The invention comprises the following components: annular metal mesh casing (1), annular metal mesh casing inside be provided with battery compartment (3) and circuit board storehouse (4), the battery compartment with circuit board storehouse evenly arrange for 120 contained angles each other and separate through baffle (8), the battery compartment in install battery (5), circuit board storehouse in install main control board (6), main control board on the integration have hydrogen sensor (9), microprocessor module (10), AD conversion module (11), data storage module (12) and wireless communication module (13). The invention is used for monitoring the hydrogen concentration in the oil-immersed bushing on line.
Description
Technical Field
The invention relates to the technical field of transformer bushing monitoring, in particular to a device for monitoring hydrogen concentration in an oil-immersed bushing on line.
Background
The oil paper insulating sleeve is an important part of a power transformer, insulating oil can generate characteristic gas mainly containing hydrogen under the combined action of electric heat, and explosion accidents can be caused if the internal discharge fault occurs when the concentration of the characteristic gas exceeds a critical value. In addition to damage to the bushing itself, explosion accidents can also cause damage to the transformer and adjacent equipment, thereby causing a power outage. The traditional transformer bushing monitoring needs offline operation, the working condition of the bushing in the running state cannot be accurately reflected, and the transformer bushing online monitoring technology is gradually promoted. The sensor is arranged in the transformer bushing, so that the original electric field and magnetic field in the bushing can be damaged, the bushing is distorted, and the potential hazard is caused to the stable operation of the transformer. The sleeve pipe on-line monitoring device who exists in the existing market needs to be uploaded to monitoring system through the cable and calculates and respond, and not only the practicality is not high with the lead wire of external intercommunication, can cause the influence to sheathed tube leakproofness and dielectric strength moreover, reduces the stability of transformer operation.
Therefore, the device for monitoring the hydrogen concentration inside the oil-immersed bushing on line is provided to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a device for monitoring the hydrogen concentration in an oil-immersed bushing on line, which solves the problem that the hydrogen concentration cannot be accurately monitored due to the distortion of an electric field and a magnetic field in the bushing after a sensor is added, maintains the original structure of the bushing and keeps the operation stability of the bushing.
The above object is achieved by the following means.
The invention provides a device for monitoring hydrogen concentration in an oil-immersed bushing on line, which comprises the following components: annular metal mesh casing, annular metal mesh casing inside be provided with battery compartment and circuit board storehouse, the battery compartment with circuit board storehouse evenly arrange for 120 contained angles each other and separate through the baffle, the battery compartment in install the battery, circuit board storehouse in install the main control board, the main control board on integrated hydrogen sensor, microprocessor module, AD conversion module, data storage module and the wireless communication module, the battery with the main control board between the electricity connect.
The device for monitoring the hydrogen concentration inside the oil immersed sleeve on line comprises a polyurethane/polyvinylidene fluoride waterproof breathable film wrapped outside an annular metal mesh shell, a wireless communication module and a battery bin, wherein the battery bin and a circuit board bin are fixed on the inner wall of the annular metal mesh shell through insulating glue.
Advantageous effects
The invention relates to a device for monitoring the hydrogen concentration in an oil-immersed sleeve on line, which adopts a metal annular shell, and the electric field and the magnetic field in the sleeve behind a sensor can not be distorted through electromagnetic shielding, thereby improving the anti-interference capability and the operation stability of the sensor, wireless communication modules and the like in a main control board of an internal circuit.
The hydrogen sensitive sensors are uniformly distributed at 120 degrees, the sensor group is stable in structure and effectively collects multiple data of different positions and the variation of hydrogen concentration, and the condition that the local hydrogen concentration is too high due to faults on one side and the sensor cannot monitor on the other side is effectively avoided.
The micro-processing module can process the measured hydrogen concentration in real time, alarms the outside through the wireless communication module, does not need to lead wires to the outside of the sleeve, maintains the original structure of the sleeve, effectively sends out early warning when the hydrogen concentration in the sleeve is too high on the premise of keeping the running stability of the sleeve, and can periodically provide data backtracking of the hydrogen concentration of the sleeve for the outside by the concentration change data recorded by the internal storage module, thereby being beneficial to analyzing the law of the hydrogen concentration.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic structural diagram of the main control board.
In the figure: 1. an annular metal mesh housing; 2. a polyurethane/polyvinylidene fluoride waterproof breathable film; 3. a battery compartment; 4. a circuit board compartment; 5. a battery; 6. a main control board; 7. an antenna; 8. a partition plate; 9. a hydrogen sensitive sensor; 10. a microprocessor module; 11. an A/D conversion module; 12. a data storage module; 13. a wireless communication module.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1:
the utility model provides an inside hydrogen concentration device of oily formula sleeve pipe of on-line monitoring, its constitution includes: annular metal mesh casing 1, annular metal mesh casing inside be provided with battery compartment 3 and circuit board storehouse 4, the battery compartment with circuit board storehouse evenly arrange and separate through baffle 8 for 120 contained angles each other, the battery compartment in install battery 5, circuit board storehouse in install main control board 6, main control board on the integration have hydrogen sensor 9, micro-processing module 10, AD conversion module 11, data storage module 12 and wireless communication module 13, the battery with the main control board between the electricity connect.
Example 2:
according to embodiment 1, the device for online monitoring of hydrogen concentration inside an oil-immersed bushing is characterized in that a polyurethane/polyvinylidene fluoride waterproof breathable film 2 is wrapped outside an annular metal mesh shell, the wireless communication module comprises an antenna 7, and the battery compartment and the circuit board compartment are fixed on the inner wall of the annular metal mesh shell through insulating glue.
The working principle is as follows: the outer side of the annular metal mesh shell of the device for monitoring the hydrogen concentration in the oil-immersed sleeve on line is wrapped with a polyurethane/polyvinylidene fluoride waterproof breathable film, the polyurethane/polyvinylidene fluoride waterproof breathable film is a plastic blending film with improved hydrophobicity and breathability, water and oil can be prevented, gas can enter and exit the sleeve without being hindered, the inside of the metal mesh can be protected from being invaded by insulating oil of a transformer by the design, faults such as short circuit are caused, and the measurement of the hydrogen concentration is not influenced. The battery sets up three groups altogether with the main control board, totally six batteries and main control board, be contained angle 60 evenly arranged in annular metal mesh casing each other, fix in the casing with the insulating cement, it is even to make annular metal mesh casing load, sensor group stable in structure, the change of hydrogen concentration in the multi-angle monitoring sleeve pipe simultaneously, effectively avoid one side trouble to lead to local hydrogen concentration too high the condition emergence that the sensor can't be monitored at the opposite side when, electromagnetic interference between each other has also been reduced simultaneously, the stability of sensor operation has been increased. The sensor module uses a hydrogen sensitive sensor with the model number of MQ135, the hydrogen concentration can be converted into an electric signal to be sent to the micro-processing module, and the micro-processing module sends the processed signal to the A/D conversion module and the data storage module. The data storage module stores hydrogen concentration data, and data are extracted for analysis during periodic maintenance, so that the communication between the inside and the outside of the sleeve is avoided, and the running reliability of the sleeve is improved. The A/D conversion module sends signals to the wireless communication module, when the received value is larger than the set early warning value, the wireless communication module sends alarm information to an external receiver through the antennas in a radio mode, the external receiver starts alarming, the three antennas are evenly distributed along with the main control board, and the strength and the stability of transmitted radio signals are guaranteed.
Claims (2)
1. The utility model provides an inside hydrogen concentration device of oily formula sleeve pipe of on-line monitoring, its constitution includes: annular metal mesh casing, characterized by: annular metal net casing inside be provided with battery compartment and circuit board storehouse, the battery compartment with circuit board storehouse evenly arrange and separate through the baffle for 120 contained angles each other, the battery compartment in install the battery, circuit board storehouse in install the main control board, the main control board on integrated hydrogen sensor, little processing module, AD conversion module, data storage module and wireless communication module, the battery with the main control board between the electricity connect.
2. The device for monitoring the hydrogen concentration inside the oil-immersed bushing on line according to claim 1, wherein: the waterproof ventilated membrane of polyurethane/polyvinylidene fluoride has been wrapped to annular metal mesh casing outside, wireless communication module include the antenna, the battery compartment with circuit board storehouse fix with insulating cement the inner wall of annular metal mesh casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110365320.7A CN113063901A (en) | 2021-04-06 | 2021-04-06 | Device for monitoring hydrogen concentration inside oil-immersed bushing on line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110365320.7A CN113063901A (en) | 2021-04-06 | 2021-04-06 | Device for monitoring hydrogen concentration inside oil-immersed bushing on line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113063901A true CN113063901A (en) | 2021-07-02 |
Family
ID=76565697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110365320.7A Pending CN113063901A (en) | 2021-04-06 | 2021-04-06 | Device for monitoring hydrogen concentration inside oil-immersed bushing on line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113063901A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100011853A1 (en) * | 2006-09-20 | 2010-01-21 | Veneruso Anthony | Contact-less sensor cartridge |
| CN203719686U (en) * | 2013-10-31 | 2014-07-16 | 北京双维金叶科技有限责任公司 | Multifunctional wireless monitor for dangerous gas environment |
| CN204479506U (en) * | 2015-04-15 | 2015-07-15 | 海卓赛思（苏州）传感技术有限公司 | A kind of hydrogen gas sensor for oil-filled transformer density of hydrogen on-line monitoring |
| CN105116024A (en) * | 2015-08-31 | 2015-12-02 | 中国电子科技集团公司第四十八研究所 | Online monitoring system for hydrogen in power transformer oil based on thin film technology |
| CN107966217A (en) * | 2017-11-24 | 2018-04-27 | 中国工程物理研究院化工材料研究所 | Immersion transformer oil temperature and dissolving density of hydrogen sense measuring device |
| CN110859596A (en) * | 2019-11-14 | 2020-03-06 | 大连理工大学 | Miniature gas-sensitive electronic capsule for detecting gas in human gastrointestinal tract |
| CN111007366A (en) * | 2019-12-17 | 2020-04-14 | 武汉拓清科技有限公司 | Oil type casing hidden danger monitoring system and method |
| CN111487497A (en) * | 2020-05-20 | 2020-08-04 | 国网吉林省电力有限公司电力科学研究院 | Self-diagnosis oil-immersed capacitive bushing with online monitoring device |
| CN111579942A (en) * | 2020-05-12 | 2020-08-25 | 上海创知电气科技有限公司 | Intelligent sensor integrating oil gas, partial discharge and micro-water detection of transformer |
| CN112484787A (en) * | 2020-12-21 | 2021-03-12 | 国网福建省电力有限公司福州供电公司 | Multifunctional passive intelligent plug |
| CN214427335U (en) * | 2020-12-19 | 2021-10-19 | 哈尔滨理工大学 | Device for monitoring hydrogen concentration inside oil-immersed bushing on line |
-
2021
- 2021-04-06 CN CN202110365320.7A patent/CN113063901A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100011853A1 (en) * | 2006-09-20 | 2010-01-21 | Veneruso Anthony | Contact-less sensor cartridge |
| CN203719686U (en) * | 2013-10-31 | 2014-07-16 | 北京双维金叶科技有限责任公司 | Multifunctional wireless monitor for dangerous gas environment |
| CN204479506U (en) * | 2015-04-15 | 2015-07-15 | 海卓赛思（苏州）传感技术有限公司 | A kind of hydrogen gas sensor for oil-filled transformer density of hydrogen on-line monitoring |
| CN105116024A (en) * | 2015-08-31 | 2015-12-02 | 中国电子科技集团公司第四十八研究所 | Online monitoring system for hydrogen in power transformer oil based on thin film technology |
| CN107966217A (en) * | 2017-11-24 | 2018-04-27 | 中国工程物理研究院化工材料研究所 | Immersion transformer oil temperature and dissolving density of hydrogen sense measuring device |
| CN110859596A (en) * | 2019-11-14 | 2020-03-06 | 大连理工大学 | Miniature gas-sensitive electronic capsule for detecting gas in human gastrointestinal tract |
| CN111007366A (en) * | 2019-12-17 | 2020-04-14 | 武汉拓清科技有限公司 | Oil type casing hidden danger monitoring system and method |
| CN111579942A (en) * | 2020-05-12 | 2020-08-25 | 上海创知电气科技有限公司 | Intelligent sensor integrating oil gas, partial discharge and micro-water detection of transformer |
| CN111487497A (en) * | 2020-05-20 | 2020-08-04 | 国网吉林省电力有限公司电力科学研究院 | Self-diagnosis oil-immersed capacitive bushing with online monitoring device |
| CN214427335U (en) * | 2020-12-19 | 2021-10-19 | 哈尔滨理工大学 | Device for monitoring hydrogen concentration inside oil-immersed bushing on line |
| CN112484787A (en) * | 2020-12-21 | 2021-03-12 | 国网福建省电力有限公司福州供电公司 | Multifunctional passive intelligent plug |
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Application publication date: 20210702 |