CN206321621U - Sulfur hexafluoride decomposer on-line monitoring system - Google Patents

Sulfur hexafluoride decomposer on-line monitoring system Download PDF

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Publication number
CN206321621U
CN206321621U CN201621349926.2U CN201621349926U CN206321621U CN 206321621 U CN206321621 U CN 206321621U CN 201621349926 U CN201621349926 U CN 201621349926U CN 206321621 U CN206321621 U CN 206321621U
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valve
interface
gas
line monitoring
sulfur hexafluoride
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CN201621349926.2U
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徐宽
高存玉
邓科平
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SHANGHAI OUMIAO ELECTRIC POWER MONITORING EQUIPMENT CO Ltd
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SHANGHAI OUMIAO ELECTRIC POWER MONITORING EQUIPMENT CO Ltd
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Abstract

The utility model is related to a kind of sulfur hexafluoride decomposer on-line monitoring system, by one group of gas piping by the SF of equipment under test6Air chamber, the first valve, sensing chamber, aspiration pump, first interface to second interface, the 3rd valve of many logical parts are sequentially connected, and the 3rd valve also takes back the SF of equipment under test6Air chamber formation gas return path;By another group of gas piping, the 3rd interface, the second valve, exhaust outlet of many logical parts are sequentially connected;The sensing chamber is provided with to the SF from air chamber6The detection means that gas analyte is detected, and detect the pressure sensor that intraventricular pressure force value is acquired to described.The utility model can shorten detection cycle, lift detection efficiency, and tested gas is realized and recycles reduction loss.

Description

Sulfur hexafluoride decomposer on-line monitoring system
Technical field
The utility model is related to the monitoring field of electric insulation equipment, and more particularly to a kind of sulfur hexafluoride decomposer is supervised online Examining system.
Background technology
Sulfur hexafluoride SF6Gas, it is extensive with good chemical stability, superior insulating properties and arc extinction performance Applied to gas insulated combined electrical equipment(GIS), be used as dielectric in high-voltage switch equal-height voltage electrical equipment.And due to GIS Device interior defect such as electrode surface burr, free conducting particle, suspended conductor are caused when shelf depreciation or overheat During generation insulation fault, the high-temperature electric arc that electric discharge is produced makes SF6Gas is decomposed reaction, and office caused by different insulative defect Portion's electric discharge can produce different decomposition chemical combination gases, and corresponding chemical combination gas ingredients, content and generation speed etc. of decomposing also has Difference.So make it possible by analyzing the component of catabolite come failure judgement type.However, pure SF6Gas Catabolite is few under normal operation, and when being coexisted with metal material, micro decomposition is likely to occur at 200 DEG C, But the product newly decomposed in equipment under test is difficult to be diffused into a short time in the device gas of on-line monitoring, causes detection cycle It is long, it is difficult to find internal hidden danger in time;Also, SF is continuously extracted from equipment under test6Gas, which carries out detection, will cause gas The decline of concentration, influences the effect of its insulation and arc extinguishing.
Utility model content
The purpose of this utility model is to provide a kind of sulfur hexafluoride decomposer on-line monitoring system, can lift detection effect Rate, can recycle reduction loss after gas sampling.
In order to achieve the above object, the technical solution of the utility model is to provide a kind of sulfur hexafluoride decomposer on-line monitoring System, by one group of gas piping by the SF of equipment under test6Air chamber, the first valve, sensing chamber, aspiration pump, the of many logical parts One, which is interfaced to second interface, the 3rd valve, is sequentially connected, and the 3rd valve also takes back the SF of equipment under test6Air chamber formation gas Body loop;By another group of gas piping, the 3rd interface, the second valve, exhaust outlet of many logical parts are sequentially connected;Institute Sensing chamber is stated to be provided with to the SF from air chamber6The detection means that gas analyte is detected, and it is indoor to the detection The pressure sensor that pressure value is acquired.
Preferably, when any one valve is in opening among first valve, the second valve, the 3rd valve, Other two valves are closed.
Preferably, first connect from the output end of the first valve of closing, sensing chamber, the aspiration pump opened, many logical parts Mouth is to the 3rd interface, the second valve opened until exhaust outlet, and connection one gas discharge channel of formation makes the detection interior For vacuum state.
Preferably, from the first valve of unlatching, sensing chamber, aspiration pump, the first interface for leading to part to second interface, directly more To the input of the 3rd valve of closing, connection forms a gas delivery passage, makes the indoor pressure for setting of detection Value.
Preferably, first connect from the output end of the first valve of closing, sensing chamber, the aspiration pump opened, many logical parts Mouth is to second interface, and until the output end of the 3rd valve of unlatching, connection forms a vapor return passage, makes the sensing chamber Interior is vacuum state.
Preferably, the detection intraventricular pressure force value that the pressure sensor and a controller signals linkup transmit are collected, leads to Cross the controller and the control letter for making it each be turned on and off is sent to the first valve, the second valve, the 3rd valve, aspiration pump Number.
Preferably, many logical parts are that have first interface, second interface, the threeway part of the 3rd interface.
Preferably, many logical parts have first interface, second interface, the 3rd interface and other one or more connect Mouthful, and accordingly connected in other one or more interfaces to SF6Gas decomposes other detection means of analyte detection.
Preferably, the equipment under test is to use SF6Gas as dielectric GIS device or high-voltage switch gear.
Sulfur hexafluoride decomposer on-line monitoring system described in the utility model, can make tested gas quickly be filled with sensing chamber Detected;Many set detecting devices of on-line monitoring simultaneously can also be set in addition, and the utility model can shorten detection cycle, Detection efficiency is lifted, tested gas is circulated and utilizes reduction loss.
Brief description of the drawings
Fig. 1 is the schematic diagram of sulfur hexafluoride decomposer on-line monitoring system described in the utility model.
Embodiment
As shown in figure 1, the utility model provides a kind of sulfur hexafluoride decomposer on-line monitoring system.The SF of equipment under test 16 Air chamber, through the first valve 2 being sequentially connected in system by pipeline, sensing chamber 3, aspiration pump 7, more logical part 8, the 3rd valve 11, take back the SF of the equipment under test 16Air chamber, forms closed gas return path;Many logical parts 8 also pass through another pipe Road is connected after connecting the second valve 9 with exhaust outlet 10.Equipment under test 1 can be GIS device, high-voltage switch gear etc. with SF6Gas is The high voltage electric equipment of dielectric.All gas pipeline in system can use steel pipe.
The sensing chamber 3 is configured with SF6The detection means 4 of analyte, the pressure sensing being acquired to the pressure of sensing chamber 3 Device 5, the pressure sensor 5 is connected with the signal of a controller 6, by the controller 6 to the first valve 2, the second valve 9, Three valves 11, aspiration pump 7, which are sent, makes the control signal that it is each turned on and off.
On the basis of the closing of whole valves, the second valve 9 of control is opened, the input of communication with detection room 3 to exhaust outlet 10 Pipeline, pumping discharge is carried out to the residual gas in sensing chamber 3 and this section of pipeline by the aspiration pump 7 of unlatching, when pressure is passed The numerical value that sensor 5 is measured closes the second valve 9 and aspiration pump 7 when representing in sensing chamber 3 as vacuum state, stopping vacuumizes behaviour Make, to ensure the accuracy subsequently monitored.
During on-line monitoring, the first valve 2 of control is opened, and makes the SF of equipment under test 16The tested gas of air chamber can be diffused into In sensing chamber 3.If shortening diffusion time, of short duration aspiration pump 7 can be opened, tested gas is quickly filled with sensing chamber 3, work as pressure The numerical value that sensor 5 is measured is represented in sensing chamber 3 as setting pressure(Such as atmospheric condition)When, close the first valve 2 and aspiration pump 7, the tested gas being filled with sensing chamber 3 is detected by detection means 4.
After detection is finished, open the 3rd valve 11 and close the first valve 2, open aspiration pump 7, enable the gas that survey is complete Return the SF of equipment under test 16Air chamber, to recycle reduction air-loss.When the numerical value that pressure sensor 5 is measured represents inspection The 3rd valve 11 and aspiration pump 7 are closed when surveying in room 3 as vacuum state.
The detection means 4 can be equipped with corresponding equipment, to be monitored on-line based on any one sulfur hexafluoride decomposer Technology detected, such as gas detecting tube method, gas chromatography (GC), Fourier transformation infrared spectrometer (FTIR), solid Electrolyte sensor, ion degree of excursion meter (IMS), chromatography mass spectrometry(GC-MS)Deng.For example, the detection means 4 is provided with red Outer detection device or SF6A certain or a variety of decomposition chemical combination gas concentration detection device, etc..
How logical part 8 in this example is a threeway part, and can also set in other examples such as four-way part, Five logical parts etc., the device of another group of sulfur hexafluoride decomposer on-line monitoring, root are connected with unnecessary how logical unit interface simultaneously According to needing to open these devices to lift detection efficiency.
Although content of the present utility model is discussed in detail by above preferred embodiment, but it should be appreciated that on The description stated is not considered as to limitation of the present utility model.After those skilled in the art have read the above, for A variety of modifications and substitutions of the present utility model all will be apparent.Therefore, protection domain of the present utility model should be by appended Claim limit.

Claims (9)

1. a kind of sulfur hexafluoride decomposer on-line monitoring system, it is characterised in that by one group of gas piping by equipment under test SF6Air chamber, the first valve, sensing chamber, aspiration pump, first interface to second interface, the 3rd valve of many logical parts are sequentially connected, 3rd valve also takes back the SF of equipment under test6Air chamber formation gas return path;, will be described many by another group of gas piping 3rd interface of logical part, the second valve, exhaust outlet are sequentially connected;The sensing chamber is provided with to the SF from air chamber6Gas The detection means that analyte is detected, and detect the pressure sensor that intraventricular pressure force value is acquired to described.
2. sulfur hexafluoride decomposer on-line monitoring system as claimed in claim 1, it is characterised in that first valve, second When any one valve is in opening among valve, the 3rd valve, other two valves are closed.
3. sulfur hexafluoride decomposer on-line monitoring system as claimed in claim 1, it is characterised in that from the first valve of closing Output end, sensing chamber, the aspiration pump opened, the first interface of many logical parts are to the 3rd interface, the second valve opened until row Gas port, connection forms a gas discharge channel, and it is vacuum state to make the detection indoor.
4. sulfur hexafluoride decomposer on-line monitoring system as claimed in claim 1, it is characterised in that the first valve from unlatching, Sensing chamber, aspiration pump, the first interface of many logical parts, until the input of the 3rd valve of closing, connect shape to second interface Into a gas delivery passage, make the indoor pressure value for setting of detection.
5. sulfur hexafluoride decomposer on-line monitoring system as claimed in claim 1, it is characterised in that from the first valve of closing Output end, sensing chamber, the aspiration pump opened, the first interface of many logical parts are to second interface, until the 3rd valve of unlatching Output end, connection forms a vapor return passage, and it is vacuum state to make the detection indoor.
6. sulfur hexafluoride decomposer on-line monitoring system as claimed in claim 1, it is characterised in that the pressure sensor and one The detection intraventricular pressure force value that controller signals linkup transmit is collected, by the controller to the first valve, the second valve, Three valves, aspiration pump, which are sent, makes the control signal that it is each turned on and off.
7. sulfur hexafluoride decomposer on-line monitoring system as claimed in claim 1, it is characterised in that many logical parts are that have First interface, second interface, the threeway part of the 3rd interface.
8. sulfur hexafluoride decomposer on-line monitoring system as claimed in claim 1, it is characterised in that many logical parts have the One interface, second interface, the 3rd interface and other one or more interfaces, and it is corresponding in other one or more interfaces Connection is to SF6Gas decomposes other detection means of analyte detection.
9. sulfur hexafluoride decomposer on-line monitoring system as claimed in claim 1, it is characterised in that the equipment under test is to use SF6Gas as dielectric GIS device or high-voltage switch gear.
CN201621349926.2U 2016-12-09 2016-12-09 Sulfur hexafluoride decomposer on-line monitoring system Active CN206321621U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621349926.2U CN206321621U (en) 2016-12-09 2016-12-09 Sulfur hexafluoride decomposer on-line monitoring system

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Application Number Priority Date Filing Date Title
CN201621349926.2U CN206321621U (en) 2016-12-09 2016-12-09 Sulfur hexafluoride decomposer on-line monitoring system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109061418A (en) * 2018-08-24 2018-12-21 国网冀北电力有限公司检修分公司 A kind of GIS discharging detection device
CN109781867A (en) * 2017-11-10 2019-05-21 中国科学院大连化学物理研究所 A kind of gas-chromatography-ion mobility spectrometry combination device for sulfur hexafluoride decomposer detection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109781867A (en) * 2017-11-10 2019-05-21 中国科学院大连化学物理研究所 A kind of gas-chromatography-ion mobility spectrometry combination device for sulfur hexafluoride decomposer detection
CN109061418A (en) * 2018-08-24 2018-12-21 国网冀北电力有限公司检修分公司 A kind of GIS discharging detection device

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