CN207675722U - One kind being used for bushing oil and gas composite on-Line Monitor Device - Google Patents
One kind being used for bushing oil and gas composite on-Line Monitor Device Download PDFInfo
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- CN207675722U CN207675722U CN201721458226.1U CN201721458226U CN207675722U CN 207675722 U CN207675722 U CN 207675722U CN 201721458226 U CN201721458226 U CN 201721458226U CN 207675722 U CN207675722 U CN 207675722U
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Abstract
The utility model discloses one kind being used for bushing oil and gas composite on-Line Monitor Device, belong to technical field of electric power, including power panel, liquid crystal display, host CPU plate, several sampling plates and several sensor assemblies, solves the technical issues of on-line monitoring of hydrogen content in the maximum seven road bushing oil of monitoring, the utility model is simple in structure, compact, integrated level is high, temperature oily in bushing and the content of hydrogen can be acquired in real time, have many advantages, such as that easy for installation, stability is good, accuracy is high, reaction is fast.
Description
Technical field
The utility model belongs to technical field of electric power, more particularly to a kind of for bushing oil and gas composite on-line monitoring dress
It sets.
Background technology
Oil-filled bushing is in longtime running and after breaking down, under heat, electro ultrafiltration, insulating oil and organic insulation
Material can decomposite some to the valuable gas of breakdown judge, including hydrogen, methane, acetylene, ethylene, carbon monoxide, dioxy
Change carbon etc., these gases dissolved in analysis oil are to judge oil-filled bushing early stage Hidden fault most convenient, most effective
One of measure.
The gas sensor of many practicalities has been developed at present, these gas sensors have been also employed in online prison
It surveys in device, such as metal oxide semiconductor sensor, electrochemical sensor, solid electrolyte sensor, hot-wire transducer.
But due to the cross-sensitivity of these gas sensor generally existings, and device response is by temperature, humidity and environment item
The influence of the factors such as part, stability and selectivity are poor so that its application is restricted, for monitoring accuracy and resolution ratio
Occasion of less demanding or relatively simple gas componant can also use.But in the accurate qualitative, quantitative of complicated gas, really
It is difficult to detect the content of specific gas.
Utility model content
The purpose of this utility model is to provide one kind and being used for bushing oil and gas composite on-Line Monitor Device, solves monitoring
In maximum seven road bushing oil the technical issues of the on-line monitoring of hydrogen content.
To achieve the above object, the utility model uses following technical scheme：
One kind being used for bushing oil and gas composite on-Line Monitor Device, including power panel, liquid crystal display, host CPU plate, number
A sampling plate and several sensor assemblies, all sampling plates connect host CPU plate by conducting wire, each sensor assembly is logical
It crosses conducting wire and connects a sampling plate；Liquid crystal display connects host CPU plate by conducting wire；
Sampling plate is equipped with output interface, analog power interface, sensor interface, A/D module, reference voltage circuit, amplification
Circuit and filter circuit, analog power interface connect the power panel by conducting wire, sensor interface include the ends SENSOR_CE,
The ends SENSOR_RE and the ends SENSOR_SE；
Reference voltage circuit includes field-effect tube Q1, resistance R1, resistance R2, resistance R3, capacitance C9, capacitance C7 and amplifier
1 foot of U2A, amplifier U2A connects the ends SENSOR_CE, and 2 feet of amplifier U2A pass through the resistance R1 and electricity that are connected in series with
Hindering R2 connections ends SENSOR_RE, 3 feet of amplifier U2A are by resistance R3 connection analog power interfaces, and the 3 of amplifier U2A
Foot also connects ground wire with capacitance C9 by the resistance R3 being connected in series with, the capacitance C7 of 1 foot of amplifier U2A also by being connected in series with
2 feet of amplifier U2A are connected with resistance R2；
The poles D of the ends the SENSOR_RE connection field-effect tube Q1, the S of the ends the SENSOR_SE connection field-effect tube Q1
The poles G of pole, field-effect tube Q1 connect the analog power interface；
Amplifying circuit includes resistance R15, resistance R14, capacitance C10, capacitance C11, resistance R17 and amplifier U2B, amplifier
For 6 feet of U2B by the resistance R15 connections ends SENSOR_SE, 6 feet of amplifier U2B pass through the capacitance C10, the electricity that are connected in parallel
Hold 7 feet that C11 connects amplifier U2B with resistance R14,5 feet of amplifier U2B pass through resistance R17 connection analog power interfaces；
The filter circuit includes amplifier OPB1A, amplifier OPB1B, resistance R21, resistance RN1, resistance R18, resistance
2 feet of R31, resistance R32, resistance R20 and resistance R19, amplifier OPB1A are put by 7 feet of resistance R21 connection amplifiers U2B
2 feet of big device OPB1A also connect 1 foot of amplifier OPB1A, amplifier by the resistance RN1 that is connected in series with resistance R18
3 feet of OPB1A connect analog power interface, and 1 foot of amplifier OPB1A is also connected by the resistance R31 and resistance R32 that are connected in series with
7 feet of amplifier OPB1B are connect, 6 feet of amplifier OPB1B also pass through 1 foot of resistance R20 connection amplifiers OPB1A, amplifier
Resistance R19 is connected between 6 feet and 7 feet of OPB1B, 7 feet of amplifier OPB1B connect the A/D module；
The A/D module connects the output interface, and the output interface connects host CPU plate by conducting wire.
The host CPU plate is equipped with CPU, and the CPU is ARM9 controllers.
The sensor interface connects sensor assembly by conducting wire.
The sensor assembly is gas sensor or temperature sensor, the model H2-BF of the gas sensor.
The model AD7606 of the A/D module.
The number of the sensor assembly is 7, and the number of the sampling plate is 7.
Indicating lamp module is additionally provided on the sampling plate, indicating lamp module connects the A/D module, the indicating lamp module
Including several LED light.
It is described in the utility model a kind of for bushing oil and gas composite on-Line Monitor Device, solve monitoring maximum seven
In the bushing oil of road the technical issues of the on-line monitoring of hydrogen content, the utility model is simple in structure, compact, and integrated level is high,
Temperature oily in bushing and the content of hydrogen can be acquired in real time, have it is easy for installation, stability is good, accuracy is high,
React the advantages that fast.
Description of the drawings
Fig. 1 is the principles of the present invention figure block diagram；
Fig. 2 is the circuit diagram of the sampling plate of the utility model.
Specific implementation mode
One kind as depicted in figs. 1 and 2 is used for bushing oil and gas composite on-Line Monitor Device, including power panel, liquid crystal
Display, host CPU plate, several sampling plates and several sensor assemblies, all sampling plates connect host CPU plate by conducting wire, often
One sensor assembly connects a sampling plate by conducting wire；Liquid crystal display connects host CPU plate by conducting wire；
Sampling plate is equipped with output interface, analog power interface, sensor interface, A/D module, reference voltage circuit, amplification
Circuit and filter circuit, analog power interface connect the power panel by conducting wire, sensor interface include the ends SENSOR_CE,
The ends SENSOR_RE and
The ends SENSOR_SE；
Reference voltage circuit includes field-effect tube Q1, resistance R1, resistance R2, resistance R3, capacitance C9, capacitance C7 and amplifier
1 foot of U2A, amplifier U2A connects the ends SENSOR_CE, and 2 feet of amplifier U2A pass through the resistance R1 and electricity that are connected in series with
Hindering R2 connections ends SENSOR_RE, 3 feet of amplifier U2A are by resistance R3 connection analog power interfaces, and the 3 of amplifier U2A
Foot also connects ground wire with capacitance C9 by the resistance R3 being connected in series with, the capacitance C7 of 1 foot of amplifier U2A also by being connected in series with
2 feet of amplifier U2A are connected with resistance R2；
The poles D of the ends the SENSOR_RE connection field-effect tube Q1, the S of the ends the SENSOR_SE connection field-effect tube Q1
The poles G of pole, field-effect tube Q1 connect the analog power interface；
Amplifying circuit includes resistance R15, resistance R14, capacitance C10, capacitance C11, resistance R17 and amplifier U2B, amplifier
For 6 feet of U2B by the resistance R15 connections ends SENSOR_SE, 6 feet of amplifier U2B pass through the capacitance C10, the electricity that are connected in parallel
Hold 7 feet that C11 connects amplifier U2B with resistance R14,5 feet of amplifier U2B pass through resistance R17 connection analog power interfaces；
The filter circuit includes amplifier OPB1A, amplifier OPB1B, resistance R21, resistance RN1, resistance R18, resistance
2 feet of R31, resistance R32, resistance R20 and resistance R19, amplifier OPB1A are put by 7 feet of resistance R21 connection amplifiers U2B
2 feet of big device OPB1A also connect 1 foot of amplifier OPB1A, amplifier by the resistance RN1 that is connected in series with resistance R18
3 feet of OPB1A connect analog power interface, and 1 foot of amplifier OPB1A is also connected by the resistance R31 and resistance R32 that are connected in series with
7 feet of amplifier OPB1B are connect, 6 feet of amplifier OPB1B also pass through 1 foot of resistance R20 connection amplifiers OPB1A, amplifier
Resistance R19 is connected between 6 feet and 7 feet of OPB1B, 7 feet of amplifier OPB1B connect the A/D module；
The A/D module connects the output interface, and the output interface connects host CPU plate by conducting wire.
The host CPU plate is equipped with CPU, and the CPU is ARM9 controllers.
The sensor interface connects sensor assembly by conducting wire.
The sensor assembly is gas sensor or temperature sensor, the model H2-BF of the gas sensor.
The model AD7606 of the A/D module.
The number of the sensor assembly is 7, and the number of the sampling plate is 7.
Indicating lamp module is additionally provided on the sampling plate, indicating lamp module connects the A/D module, the indicating lamp module
Including several LED light.
In use, sensor assembly is directly protruding into the oiling valve pipeline of bushing, sensor assembly acquires hydrogen
Concentration value, reference voltage circuit provides necessary reference voltage and operating voltage for sensor assembly, and amplifying circuit amplification passes
The signal of sensor module output, after filter circuit is filtered the output signal of amplifier circuit, is transmitting the signal to
A/D module carries out analog-to-digital conversion, delivers it to host CPU plate finally by output interface and is handled, host CPU plate passes through
Liquid crystal display shows the concentration value of hydrogen.
The power panel is equipped with Voltage stabilizing module, for liquid crystal display, host CPU plate, all sampling plates and all biographies
Sensor module is powered.
The sensor assembly can also be temperature sensor, for detecting oil temperature information.
Indicating lamp module includes red LED lamp, blue LED lamp and green LED lamp, the alarm content that indicating lamp module is shown
As shown in table 1：
Table 1
In table 1, DGA is density of hydrogen.
It is described in the utility model a kind of for bushing oil and gas composite on-Line Monitor Device, solve monitoring maximum seven
In the bushing oil of road the technical issues of the on-line monitoring of hydrogen content, the utility model is simple in structure, compact, and integrated level is high,
Temperature oily in bushing and the content of hydrogen can be acquired in real time, have it is easy for installation, stability is good, accuracy is high,
React the advantages that fast.
Claims (7)
1. one kind being used for bushing oil and gas composite on-Line Monitor Device, it is characterised in that：Including power panel, liquid crystal display,
Host CPU plate, several sampling plates and several sensor assemblies, all sampling plates connect host CPU plate by conducting wire, each sensing
Device module connects a sampling plate by conducting wire；Liquid crystal display connects host CPU plate by conducting wire；
Sampling plate is equipped with output interface, analog power interface, sensor interface, A/D module, reference voltage circuit, amplifying circuit
And filter circuit, analog power interface connect the power panel by conducting wire, sensor interface include the ends SENSOR_CE,
The ends SENSOR_RE and the ends SENSOR_SE；
Reference voltage circuit includes field-effect tube Q1, resistance R1, resistance R2, resistance R3, capacitance C9, capacitance C7 and amplifier U2A,
1 foot of amplifier U2A connects the ends SENSOR_CE, and 2 feet of amplifier U2A pass through the resistance R1 and resistance R2 that are connected in series with
The ends SENSOR_RE are connected, 3 feet of amplifier U2A are by resistance R3 connection analog power interfaces, and 3 feet of amplifier U2A are also
Ground wire is connected with capacitance C9 by the resistance R3 being connected in series with, the capacitance C7 and electricity of 1 foot of amplifier U2A also by being connected in series with
Hinder 2 feet of R2 connection amplifiers U2A；
The poles D of the ends the SENSOR_RE connection field-effect tube Q1, the poles S of the ends the SENSOR_SE connection field-effect tube Q1, field
The poles G of effect pipe Q1 connect the analog power interface；
Amplifying circuit includes resistance R15, resistance R14, capacitance C10, capacitance C11, resistance R17 and amplifier U2B, amplifier U2B
6 feet by the resistance R15 connections ends SENSOR_SE, 6 feet of amplifier U2B pass through the capacitance C10, the capacitance that are connected in parallel
C11 connects 7 feet of amplifier U2B with resistance R14, and 5 feet of amplifier U2B pass through resistance R17 connection analog power interfaces；
The filter circuit include amplifier OPB1A, amplifier OPB1B, resistance R21, resistance RN1, resistance R18, resistance R31,
2 feet of resistance R32, resistance R20 and resistance R19, amplifier OPB1A pass through 7 feet of resistance R21 connection amplifiers U2B, amplifier
2 feet of OPB1A also connect 1 foot of amplifier OPB1A by the resistance RN1 that is connected in series with resistance R18, and the 3 of amplifier OPB1A
Foot connects analog power interface, and 1 foot of amplifier OPB1A also connects amplifier by the resistance R31 being connected in series with resistance R32
6 feet of 7 feet of OPB1B, amplifier OPB1B also pass through 1 foot of resistance R20 connection amplifiers OPB1A, 6 feet of amplifier OPB1B
And 7 be connected with resistance R19 between foot, 7 feet of amplifier OPB1B connect the A/D module；
The A/D module connects the output interface, and the output interface connects host CPU plate by conducting wire.
2. as described in claim 1 a kind of for bushing oil and gas composite on-Line Monitor Device, it is characterised in that:The master
CPU board is equipped with CPU, and the CPU is ARM9 controllers.
3. as described in claim 1 a kind of for bushing oil and gas composite on-Line Monitor Device, it is characterised in that:The biography
Sensor interface connects sensor assembly by conducting wire.
4. as described in claim 1 a kind of for bushing oil and gas composite on-Line Monitor Device, it is characterised in that:The biography
Sensor module is gas sensor or temperature sensor, the model H2-BF of the gas sensor.
5. as described in claim 1 a kind of for bushing oil and gas composite on-Line Monitor Device, it is characterised in that:The AD
The model AD7606 of module.
6. as described in claim 1 a kind of for bushing oil and gas composite on-Line Monitor Device, it is characterised in that:The biography
The number of sensor module is 7, and the number of the sampling plate is 7.
7. as described in claim 1 a kind of for bushing oil and gas composite on-Line Monitor Device, it is characterised in that:It is described to adopt
Indicating lamp module is additionally provided on model, indicating lamp module connects the A/D module, and the indicating lamp module includes several LED light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721458226.1U CN207675722U (en) | 2017-11-06 | 2017-11-06 | One kind being used for bushing oil and gas composite on-Line Monitor Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721458226.1U CN207675722U (en) | 2017-11-06 | 2017-11-06 | One kind being used for bushing oil and gas composite on-Line Monitor Device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207675722U true CN207675722U (en) | 2018-07-31 |
Family
ID=62963741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721458226.1U Active CN207675722U (en) | 2017-11-06 | 2017-11-06 | One kind being used for bushing oil and gas composite on-Line Monitor Device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207675722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831274A (en) * | 2017-11-06 | 2018-03-23 | 南京力通达电气技术有限公司 | One kind is used for bushing oil and gas composite on-Line Monitor Device |
-
2017
- 2017-11-06 CN CN201721458226.1U patent/CN207675722U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831274A (en) * | 2017-11-06 | 2018-03-23 | 南京力通达电气技术有限公司 | One kind is used for bushing oil and gas composite on-Line Monitor Device |
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