CN214794565U - Online monitoring device for dissolved hydrogen in transformer insulating oil - Google Patents
Online monitoring device for dissolved hydrogen in transformer insulating oil Download PDFInfo
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- CN214794565U CN214794565U CN202121347855.3U CN202121347855U CN214794565U CN 214794565 U CN214794565 U CN 214794565U CN 202121347855 U CN202121347855 U CN 202121347855U CN 214794565 U CN214794565 U CN 214794565U
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Abstract
The utility model relates to an on-line monitoring field specifically is a hydrogen dissolved on-line monitoring device in transformer insulating oil. The device comprises a transformer, a palladium metal sensor, a data acquisition unit, a DCS and an upper computer, wherein the palladium metal sensor is arranged at an oil outlet of the transformer and is electrically connected with the data acquisition unit, the data acquisition unit is in signal connection with the DCS, and the DCS is arranged in the upper computer. The hydrogen concentration in the insulating oil can be rapidly and accurately monitored, the performance of the insulating oil is guaranteed, the safe operation level of the transformer is improved, and the operation and maintenance cost is reduced.
Description
Technical Field
The utility model relates to an on-line monitoring field specifically is a hydrogen dissolved on-line monitoring device in transformer insulating oil.
Background
With the development of modern industry, electric power is an indispensable part in industrial production, a power transformer is core equipment of a power system, and insulating oil is used as an insulating medium of the power transformer and plays a role in heat dissipation, so that the performance of the power transformer has important significance on the insulating performance of the transformer, and along with the continuous improvement of the voltage grade of the power system, the improvement of the insulating performance of the insulating medium is more and more paid extensive attention by engineers; however, after the insulating oil is used for a period of time, hydrogen can be decomposed and dissolved in the insulating oil, the use effect of the insulating oil is affected due to the excessive concentration of the hydrogen in the insulating oil, and the transformer can be failed and seriously damaged due to long-term operation; however, the above-mentioned maintenance method is not suitable for the requirements of power system reformation and development and the requirements of power users on power supply reliability, and how to quickly and accurately monitor the hydrogen concentration in the insulating oil is a problem to be solved urgently in various related industries.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above problem to a hydrogen on-line monitoring device dissolves in transformer insulating oil is provided, can monitor the hydrogen concentration in the insulating oil fast accurately, has ensured the performance of insulating oil and then has improved the safe operation level of transformer, prolongs the life of insulating oil and transformer when improving the benefit, has reduced the expense of operation maintenance.
The utility model provides a problem, the technical scheme who adopts is:
the utility model provides a dissolved hydrogen on-line monitoring device in transformer insulating oil, includes transformer, palladium metal sensor, data collection station, DCS and host computer, and palladium metal sensor dress is in the oil-out department of transformer, and palladium metal sensor is connected with the data collection station electricity, and the data collection station is connected with the DCS signal, and the DCS is established in the host computer.
Adopt above-mentioned technical scheme the utility model discloses, compare with prior art, its outstanding characteristics are:
the utility model discloses can accurately monitor the hydrogen concentration in the insulating oil fast, the performance of insulating oil and then improve the safe operation level of transformer has been ensured, can transmit remote analysis and control center with the result of monitoring fast through on-line monitoring, automatic alarm and can follow the change trend early warning trouble of hydrogen concentration when hydrogen concentration exceeds standard in insulating oil, and then take necessary measure, reduce the fault rate of transformer, prolong the life of insulating oil and transformer when the benefit is improved, the expense of operation maintenance has been reduced.
Preferably, the present invention further provides:
still including preventing rain case, data collection station establishes in preventing rain case, is equipped with the antenna of being connected with data collection station on the rain case, antenna and DCS signal connection, and data collection station passes through antenna and DCS and upper computer connection.
The data collector is respectively provided with an LORA interface, an RS485 MODBUS-RTU interface, a GPRS interface and a TCP/IP-MODBUS interface.
Drawings
Fig. 1 is a schematic view of a front view structure of an embodiment of the present invention;
fig. 2 is a schematic view of a side elevation structure of a palladium metal sensor according to an embodiment of the present invention;
in the figure: a transformer 1; an oil outlet 2; a palladium metal sensor 3; an oil immersion end 31; a sensor body 32; a signal interface 33; a housing 4; a display screen 5; a control panel 6; a rain-proof box 7; an antenna 8; a power supply 9.
Detailed Description
The following description of the embodiments will help the public to understand the present invention, but the specific embodiments given by the applicant should not be considered as limiting the technical solution of the present invention, and any changes in the definition of the components or technical features and/or in the form of the overall structure rather than substantial changes should be considered as the protection scope defined by the technical solution of the present invention.
Referring to fig. 1 to 2, the technical solution of the present invention is as follows:
an online monitoring device for dissolved hydrogen in transformer insulating oil comprises a transformer 1, a palladium metal sensor 3, a data acquisition unit, a DCS and an upper computer, wherein an oil immersion end 31 of the palladium metal sensor 3 is installed on an oil outlet 2 of the transformer 1 and is used for acquiring the hydrogen concentration in the insulating oil in the transformer 1, the data acquisition unit adopts a HYGA-5000 data acquisition unit, the data acquisition unit comprises a shell 4, a data acquisition module, a communication module and a power supply module are installed in the shell 4, a display screen 5 and a control panel 6 are also installed on the shell 4, the data acquisition module is in data transmission connection with a signal interface 33 of the palladium metal sensor 3, the data acquisition module is in data transmission connection with the communication module, the DCS is installed in the upper computer and is in signal connection with the communication module, an AC220V interface is installed on the power supply module, and the power supply module is electrically connected with a power supply 9 through an AC220V interface, the power module is also respectively connected with the data acquisition module, the communication module, the display screen 5 and the control panel 6, the communication module is respectively provided with an LORA interface, an RS485 MODBUS-RTU interface, a GPRS interface and a TCP/IP-MODBUS interface, the shell 4 is arranged in the rain-proof box 7, and the rain-proof box 7 is provided with an antenna 8 in signal connection with the communication module.
The working principle is as follows: the palladium metal sensor 3 is composed of an oil immersion end 31, a sensor body 32 and a signal interface 33, the oil immersion end 31 of the palladium metal sensor 3 is arranged at an oil outlet 2 of the transformer 1, a palladium alloy nano film is arranged inside the oil immersion end 31, hydrogen molecules dissolved in insulating oil of the transformer 1 are adsorbed on the surface of the palladium alloy nano film through the palladium alloy nano film, the hydrogen molecules are decomposed into two hydrogen atoms under the catalytic action of the palladium alloy nano film, the hydrogen atoms are diffused into palladium alloy crystal lattices to cause crystal lattice expansion and phase change, the conductivity of the alloy film is changed, and the concentration of the hydrogen dissolved in the insulating oil of the transformer 1 is monitored; contain the analysis unit in the sensor body 32, amplify and handle the signal that palladium alloy nanometer film gathered through the analysis unit, pass through signal interface 33 with hydrogen concentration and transmit to the data acquisition module, the data acquisition module is with hydrogen concentration's data transmission to communication module, communication module is with hydrogen concentration's data remote transmission for DCS and show in the host computer, perhaps select the audio-visual demonstration of hydrogen concentration's data on display screen 5, realize the long-range on-line monitoring of hydrogen concentration in the insulating oil.
The utility model discloses can accurately monitor the hydrogen concentration in the insulating oil fast, the performance of insulating oil and then improve the safe operation level of transformer has been ensured, can transmit remote analysis and control center with the result of monitoring fast through on-line monitoring, automatic alarm and can follow the change trend early warning trouble of hydrogen concentration when hydrogen concentration exceeds standard in insulating oil, and then take necessary measure, reduce the fault rate of transformer, prolong the life of insulating oil and transformer when the benefit is improved, the expense of operation maintenance has been reduced.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent variations made by using the contents of the specification and the drawings are included in the scope of the present invention.
Claims (3)
1. The utility model provides a hydrogen dissolved on-line monitoring device in transformer insulating oil, includes transformer, palladium metal sensor, data collection station, DCS and host computer, its characterized in that: the palladium metal sensor is arranged at an oil outlet of the transformer and is electrically connected with the data collector, the data collector is in signal connection with the DCS, and the DCS is arranged in the upper computer.
2. The on-line monitoring device for the dissolved hydrogen in the transformer insulating oil according to claim 1, characterized in that: still including preventing rain case, data collection station establishes in preventing rain case, is equipped with the antenna of being connected with data collection station on the rain case, antenna and DCS signal connection, and data collection station passes through antenna and DCS and upper computer connection.
3. The on-line monitoring device for the dissolved hydrogen in the transformer insulating oil according to claim 1, characterized in that: the data collector is respectively provided with an LORA interface, an RS485 MODBUS-RTU interface, a GPRS interface and a TCP/IP-MODBUS interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121347855.3U CN214794565U (en) | 2021-06-17 | 2021-06-17 | Online monitoring device for dissolved hydrogen in transformer insulating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121347855.3U CN214794565U (en) | 2021-06-17 | 2021-06-17 | Online monitoring device for dissolved hydrogen in transformer insulating oil |
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| Publication Number | Publication Date |
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| CN214794565U true CN214794565U (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121347855.3U Active CN214794565U (en) | 2021-06-17 | 2021-06-17 | Online monitoring device for dissolved hydrogen in transformer insulating oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709469A (en) * | 2022-03-25 | 2022-07-05 | 宁德新能源科技有限公司 | Electrochemical device and electronic device |
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2021
- 2021-06-17 CN CN202121347855.3U patent/CN214794565U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709469A (en) * | 2022-03-25 | 2022-07-05 | 宁德新能源科技有限公司 | Electrochemical device and electronic device |
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