CN107422078A - A kind of SF6The micro- water on-line monitoring system of density - Google Patents
A kind of SF6The micro- water on-line monitoring system of density Download PDFInfo
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- CN107422078A CN107422078A CN201710703205.XA CN201710703205A CN107422078A CN 107422078 A CN107422078 A CN 107422078A CN 201710703205 A CN201710703205 A CN 201710703205A CN 107422078 A CN107422078 A CN 107422078A
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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
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
- G01N33/0032—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array using two or more different physical functioning modes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- 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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- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
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- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a kind of SF6The micro- water on-line monitoring system of density, solves SF6The problem of micro- water on-line monitoring.It includes monitoring modular, measuring circuit, power supply module, main control device, wireless transport module and remote monitoring backstage, the advantage is that, can monitor SF in real time6Micro-water content state, state of temperature and density (pressure) state of electrical equipment, so as to realize to electrical equipment gas leakage and the monitoring of micro-water content, monitoring, meet the needs of electrical power distribution grid automation and equipment state overhauling, safe operation and operation and management level to improving system, carry out expected diagnosis and trend analysis, reducing no scheduled outage maintenance has realistic meaning.
Description
Technical field
The present invention relates to a kind of gas-detecting device, more particularly to a kind of SF6The micro- water on-line monitoring system of density.
Background technology
SF6Gas is as a kind of important dielectric, because it has good insulating properties and arc extinction performance to obtain people
Accreditation, its electric strength is 2.5 times of nitrogen under same pressure, and breakdown voltage is 2.5 times of air, and arc extinguishing ability is empty
100 times of gas, it is a kind of super-pressure insulating dielectric materials of new generation better than between air and oil, and is widely used in height and presses off
Close gas-insulated.SF6The relevant parameter (density, micro-water content) of gas can influence the normal operation of many electrical equipments.SF6Gas
The connecting-disconnecting function of body, insulating properties and gas pressure are closely related, hereby it is ensured that good electric property just needs gas pressure
In a rational scope.SF6In moisture not only have an impact to insulation of electrical installation performance, break performance, more can be to electricity
The parts of power equipment have an impact.Therefore, by SF in high voltage electric equipment6Gas density, micro-water content carry out online
Monitoring, SF in electrical equipment is grasped accurately and in time6The density and humidity of gas, to the safe and reliable operation of power equipment extremely
Close it is important, in existing electrical equipment lack to SF6The system that gas density, micro-water content are monitored on-line is, it is necessary to a large amount of people
Power material resources are put into the maintenance of power equipment, can not reflect the inside of electrical equipment in time, major safety risks be present.
The content of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to SF6Interior micro- water is monitored on-line.
The purpose of the present invention adopts the following technical scheme that realization：
A kind of SF6The micro- water on-line monitoring system of density, including：
Monitoring modular, including gas sampling mechanical splice, the gas sampling mechanical splice are three-way connection, are connected respectively
In high voltage electric equipment body, sensor sensing unit and tonifying Qi interface；The sensor sensing unit senses including micro- water
Device, density sensor and temperature sensor, multiple micro- water sensors are connected with data acquisition module；The density passes
Sensor, the data acquisition module and the temperature sensor are connected by the way that universal serial bus and measuring circuit are standby respectively；
Measuring circuit, it is connected with the monitoring modular, enters for collecting the signal come to the sensor sensing unit
Row sampling analysis, and main control device is sent to, in addition to display unit, for being shown to collection analysis result；
Power supply module, including wired power supply unit and solar powered unit, enter to monitoring modular and measuring circuit respectively
Row power supply；
Main control device, it is interior to be provided with flush bonding module, it is connected with the measuring circuit, for being carried to each measuring circuit
The data value of confession is collected, recorded, showing tendency chart, record alert event and offer latch contact signal, flush bonding module
It is interior have data acquisition unit, data analysis unit, data monitoring unit, alarm unit, self-test unit, self-starting unit and
Print module, the self-starting unit recover automatically after being used for Failure elimination；
Wireless transport module, including wireless host transceiver module and wireless host transmitting-receiving submodule, the wireless host are received
Hair module is arranged in main control device, and the wireless host transmitting-receiving submodule is arranged in monitoring modular, with the wireless host
Transceiver module is connected by radio communication；
Remote monitoring backstage, is connected with the main control device radio communication, and high voltage electric equipment is monitored for remote online
Micro-water content state, state of temperature and density state.
Further, the solar powered unit includes using the polycrystalline silicon solar plate of photovoltaic power generation technology and is used for
Store the electric power storage module of electric energy.
Further, the monitoring modular quantity is up to 224.
Further, the tonifying Qi interface is provided with the gas sampling mechanical splice junction is used to limit gas flow
Non-return valve, the tonifying Qi interface is provided with double self-styled HTHP snap joints, and the tonifying Qi interface is provided with insertion pipe, institute
State double self-styled HTHP snap joints and be provided with the inserting groove being adapted with the insertion pipe, the insertion pipe straight cutting enters described
The tonifying Qi interface and the connection of double self-styled HTHP snap joints, double self-styled HTHPs are realized in inserting groove
Control valve element and rubber sealant are provided with snap joint.
Further, automatic heating unit, the automatic heating unit and the sensor are provided with the monitoring modular
Sensing unit is connected.
Further, the wireless transport module is Zigbee wireless communication modules.
Further, micro- water sensor is the micro- water sensor of Vailsla OY.
Further, the data acquisition module is the series modules of ADVANTECH 4000.
Further, the measuring circuit includes sample circuit, amplifying circuit, analog-digital converter and controls CPU, described to adopt
Sample circuit includes multigroup different sample resistance, and the amplifying circuit includes multigroup different multiplication factor, and the control CPU is used
In judging whether output signal full scale and selects appropriate sample resistance and multiplication factor.
Compared with prior art, the beneficial effects of the present invention are：Gathered data is distinguished using multigroup monitoring modular, realized big
Scale monitoring, the state-of-the -art supervision system of high-performance operation, carries solar powered unit, prevents wired power supply unit failure from leading
Monitoring modular and measuring circuit is caused not to work；Monitoring modular and main control device are directly connected to by wireless transport module, it is convenient
Data transfer, reduce wiring；Can be monitored in real time by distal end monitoring modular the micro-water content state of electrical equipment, state of temperature and
Density (pressure) state, so as to realize to electrical equipment gas leakage and the monitoring of micro-water content, monitoring, meet electrical power distribution power network certainly
The needs of dynamicization and equipment state overhauling.
Brief description of the drawings
Fig. 1 is the SF of the present invention6The embodiment block diagram of the micro- water on-line monitoring system of density；
Fig. 2 is the SF of the present invention6The structural representation of the gas sampling mechanical splice of the micro- water on-line monitoring system of density；
Fig. 3 is the SF of the present invention6The internal structure signal of the gas sampling mechanical splice of the micro- water on-line monitoring system of density
Figure；
Fig. 4 is the SF of the present invention6The schematic flow sheet of the measuring circuit of the micro- water on-line monitoring system of density.
In figure：10th, monitoring modular；11st, gas sampling mechanical splice；12nd, sensor sensing unit；121st, micro- water sensing
Device；122nd, density sensor；123rd, data acquisition module；124th, temperature sensor；125th, automatic heating unit；13rd, tonifying Qi connects
Mouthful；131st, non-return valve；132nd, double self-styled HTHP snap joints；133rd, insertion pipe；134th, inserting groove；20th, measuring circuit；
21st, sample circuit；22nd, amplifying circuit；23rd, analog-digital converter；24th, CPU is controlled；30th, power supply module；31st, wired power supply unit；
32nd, solar powered unit；40th, main control device；50th, wireless transport module；51st, wireless host transceiver module；52nd, wireless host
Receive and dispatch submodule；60th, remote monitoring backstage.
Embodiment
Below, with reference to accompanying drawing and embodiment, the present invention is described further, it is necessary to which explanation is, not
Under the premise of afoul, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
A kind of SF6The micro- water on-line monitoring system of density, including：
Monitoring modular 10, including gas sampling mechanical splice 11, the gas sampling mechanical splice 11 are three-way connection, point
High voltage electric equipment body, sensor sensing unit 12 and tonifying Qi interface 13 are not connected to；The sensor sensing unit 12
Including micro- water sensor 121, density sensor 122 and temperature sensor 124, multiple micro- water sensors 121 and data
Acquisition module 123 is connected；The density sensor 122, the data acquisition module 123 and the temperature sensor 124 divide
It is not connected by universal serial bus with upper level equipment；Universal serial bus is RS485 buses；
Measuring circuit 20, it is connected with the monitoring modular 10, for collecting what is come to the sensor sensing unit 12
Signal carries out sampling analysis, and is sent to upper level equipment, in addition to display unit, for showing to collection analysis result
Show；
Power supply module 30, including wired power supply unit 31 and solar powered unit 32, respectively to monitoring modular 10 and survey
Amount circuit 20 is powered；
Main control device 40, it is interior to be provided with flush bonding module, it is connected with the measuring circuit 20, for each measurement electricity
The data value that road 20 provides is collected, recorded, showing tendency chart, record alert event and offer latch contact signal, embedded
There is data acquisition unit, data analysis unit, data monitoring unit, alarm unit, self-test unit, self-starting list in formula module
Member and print module, the self-starting unit recover automatically after being used for Failure elimination；
Wireless transport module 50, including wireless host transceiver module 51 and wireless host transmitting-receiving submodule 52, it is described wireless
Main frame transceiver module 51 is arranged in main control device 40, and the wireless host transmitting-receiving submodule 52 is arranged in monitoring modular 10,
It is connected with the wireless host transceiver module 51 by radio communication；
Remote monitoring backstage 60, is connected with the radio communication of main control device 40, and high-voltage electrical apparatus is monitored for remote online
Micro-water content state, state of temperature and the density state of equipment.
Gathered data is distinguished using multigroup monitoring modular 10, realizes extensive monitoring, the state-of-the -art supervision of high-performance operation
System, solar powered unit 32 is carried, prevent wired failure of power supply unit 31 from causing monitoring modular 10 and the nothing of measuring circuit 20
Method works；Monitoring modular 10 and main control device 40 are directly connected to by wireless transport module 50, facilitate data transfer, reduces cloth
Line；Micro-water content state, state of temperature and density (pressure) shape of electrical equipment can be monitored in real time by distal end monitoring modular 10
State, so as to realize to electrical equipment gas leakage and the monitoring of micro-water content, monitoring, meet electrical power distribution grid automation and equipment shape
The needs of state maintenance.
The solar powered unit 32 includes using the polycrystalline silicon solar plate of photovoltaic power generation technology and for storing electricity
The electric power storage module of energy, electric energy is stored, voltage stabilizing output.The super low-power consumption of system ensure that solar electric power supply system can answer
To different weather conditions, ensure the sustainability of system operation.Also make the installment work at scene more convenient simultaneously.
The quantity of monitoring modular 10 is up to 224, is distributed in each position as desired, and monitoring is more accurate.
The tonifying Qi interface 13 is provided with the junction of gas sampling mechanical splice 11 to be used to limit the inverse of gas flow
Only valve 131, the tonifying Qi interface 13 are provided with double self-styled HTHP snap joints 132, and the tonifying Qi interface 13, which is provided with, to be inserted
Adapter 133, double self-styled HTHP snap joints 132 are provided with the inserting groove 134 being adapted with the insertion pipe 133,
The straight cutting of insertion pipe 133 enters to realize that the tonifying Qi interface 13 and double self-styled HTHPs are quick in the inserting groove 134
The connection of joint 132, double self-styled HTHP snap joints 132 are interior to be provided with control valve element and rubber sealant.Need to mend
During gas, directly double self-styled HTHP snap joints 132 can be inserted on tonifying Qi interface 13, realize fast aeration, use is more square
Just.
Automatic heating unit 125, the automatic heating unit 125 and the sensor sense are provided with the monitoring modular 10
Unit 12 is answered to be connected.When automatic heating unit 125 monitors that dew point is too high, start automatic heating function, to sensor sensing
The place space of unit 12 carries out heating and dehumidification, ensures the normal work of sensor sensing unit 12.The optional electricity consumption of automatic heating part
Heated filament.
The wireless transport module 50 is Zigbee wireless communication modules.Zigbee is configured with master control IED wirelessly to lead
Machine transceiver module 51, using serial communication, support 1 pair of multi-mode.The wireless slaves of each collection monitoring unit configuration Zigbee are received
Send out module.Main control device gathers monitoring modular by wireless module and lower end and carries out data interaction, avoids the big rule of transformer station
Mould lays cable, very big convenient installation and maintenance work.
Micro- water sensor 121 is the micro- water sensor 121 of Vailsla OY, and sampling precision is high.
The data acquisition module 123 is the series modules of ADVANTECH 4000, and the module has a good autgmentability, one
Block ADVANTECHADAM 4017+ modules can connect 8 micro- water sensors 121, and stable performance is excellent.
Measuring circuit 20 includes sample circuit 21, amplifying circuit 22, analog-digital converter 23 and control CPU24, sample circuit
21 include multigroup different sample resistance, and amplifying circuit 22 includes multigroup different multiplication factor, and control CPU24 is defeated for judging
Go out whether signal full scale and selects appropriate sample resistance and multiplication factor., will after measuring circuit receives sensor signal
Electric signal sends sample circuit to, and sample circuit is sampled from initial resistance and sends electric signal to amplifying circuit, put
Big circuit filters out interference, amplifies electric signal and sends analog-digital converter to, converts the electrical signal to data signal, data signal quilt
Send control CPU to, control CPU judge data signal whether full scale or numerical value it is too small, as full scale or numerical value are too small, then control
Sample circuit processed changes suitable sample resistance, and new electric signal enters again control CPU, control after above-mentioned flow
CPU judge again new data signal whether full scale or numerical value it is too small, as full scale or numerical value are too small, then control amplifying circuit
Change multiplication factor；Final digital signal value is moderate, then by data signal in display unit real-time display, and is sent to master
Control equipment.Measuring circuit realizes the system design of multrirange Self Matching, and for different value of electrical signals, Auto-matching switching is relative
The sample circuit answered, to ensure sampling precision, detect tiny signal.Analog-digital converter is 16,100kSPS successive approximations
Analog-digital converter (ADC) system, amplifying circuit include Differential Input integrated driving amplifier, interference can be filtered out, for highest
1kHz input signals and 100k SPS sampling rates, power consumption as little as 7.35mW system and optimize.The design of the measuring circuit is protected
High-precision, the anti-interference, low-power consumption demonstrate,proved, reliability.Measuring circuit is analyzed gathered data by Fourier algorithm, will
Main control device is sent in result, display unit scene is shown to the collection result of the monitoring modular in real time.
Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to the scope of protection of the invention is limited with this,
The change and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed scope.
Claims (9)
- A kind of 1. SF6The micro- water on-line monitoring system of density, it is characterised in that including：Monitoring modular, including gas sampling mechanical splice, the gas sampling mechanical splice are three-way connection, are connected to height Voltage electrical apparatus body, sensor sensing unit and tonifying Qi interface；The sensor sensing unit includes micro- water sensor, close Degree sensor and temperature sensor, multiple micro- water sensors are connected with data acquisition module；The density sensor, The data acquisition module and the temperature sensor are connected by universal serial bus with measuring circuit respectively；Measuring circuit, it is connected with the monitoring modular, is adopted for collecting the signal come to the sensor sensing unit Sample is analyzed, and is sent to main control device, in addition to display unit, for being shown to collection analysis result；Power supply module, including wired power supply unit and solar powered unit, are supplied monitoring modular and measuring circuit respectively Electricity；Main control device, it is interior to be provided with flush bonding module, it is connected with the measuring circuit, for what is provided each measuring circuit Data value is collected, recorded, showing tendency chart, record alert event and offer latch contact signal, is had in flush bonding module There are data acquisition unit, data analysis unit, data monitoring unit, alarm unit, self-test unit, self-starting unit and printing Module, the self-starting unit recover automatically after being used for Failure elimination；Wireless transport module, including wireless host transceiver module and wireless host transmitting-receiving submodule, the wireless host receive and dispatch mould Block is arranged in main control device, and the wireless host transmitting-receiving submodule is arranged in monitoring modular, is received and dispatched with the wireless host Module is connected by radio communication；Remote monitoring backstage, is connected with the main control device radio communication, for the micro- of remote online monitoring high voltage electric equipment Water content state, state of temperature and density state.
- 2. SF as claimed in claim 16The micro- water on-line monitoring system of density, it is characterised in that the solar powered unit bag Include using the polycrystalline silicon solar plate of photovoltaic power generation technology and the electric power storage module for storing electric energy.
- 3. SF as claimed in claim 16The micro- water on-line monitoring system of density, it is characterised in that the monitoring modular quantity highest For 224.
- 4. SF as claimed in claim 16The micro- water on-line monitoring system of density, it is characterised in that the tonifying Qi interface and the gas Sampler body mechanical splice junction is provided with the non-return valve for being used for limiting gas flow, and the tonifying Qi interface is provided with double self-styled high temperature High-voltage quick joint, the tonifying Qi interface are provided with insertion pipe, double self-styled HTHP snap joints be provided with it is described The inserting groove that insertion pipe is adapted, the insertion pipe straight cutting enter to realize the tonifying Qi interface and described double self-styled in the inserting groove The connection of HTHP snap joint, double self-styled HTHP snap joints are interior to be provided with control valve element and rubber sealant.
- 5. SF as claimed in claim 16The micro- water on-line monitoring system of density, it is characterised in that be provided with certainly in the monitoring modular Dynamic heating unit, the automatic heating unit are connected with the sensor sensing unit.
- 6. SF as claimed in claim 16The micro- water on-line monitoring system of density, it is characterised in that the wireless transport module is Zigbee wireless communication modules.
- 7. SF as claimed in claim 16The micro- water on-line monitoring system of density, it is characterised in that micro- water sensor is Finland Draw micro- water sensor in Visa.
- 8. SF as claimed in claim 16The micro- water on-line monitoring system of density, it is characterised in that the data acquisition module is The series modules of ADVANTECH 4000.
- 9. SF as claimed in claim 16The micro- water on-line monitoring system of density, it is characterised in that the measuring circuit includes sampling Circuit, amplifying circuit, analog-digital converter and control CPU, the sample circuit include multigroup different sample resistance, the amplification Circuit includes multigroup different multiplication factor, the control CPU be used to judging output signal whether full scale and select it is appropriate Sample resistance and multiplication factor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710703205.XA CN107422078A (en) | 2017-08-16 | 2017-08-16 | A kind of SF6The micro- water on-line monitoring system of density |
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| CN201710703205.XA CN107422078A (en) | 2017-08-16 | 2017-08-16 | A kind of SF6The micro- water on-line monitoring system of density |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060020A (en) * | 2018-08-03 | 2018-12-21 | 南方电网科学研究院有限责任公司 | A kind of information centralized processor |
| CN110426313A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | A kind of gas density relay and monitoring system with line diagnosis function |
| CN113175953A (en) * | 2021-04-28 | 2021-07-27 | 国网河南省电力公司检修公司 | Integrated SF6 gas online sensing device based on Internet of things |
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| CN110426313A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | A kind of gas density relay and monitoring system with line diagnosis function |
| CN113175953A (en) * | 2021-04-28 | 2021-07-27 | 国网河南省电力公司检修公司 | Integrated SF6 gas online sensing device based on Internet of things |
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