CN203881713U - Online ultrasonic wave monitoring system for SF6 gas in transformer substation - Google Patents
Online ultrasonic wave monitoring system for SF6 gas in transformer substation Download PDFInfo
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- CN203881713U CN203881713U CN201420293998.4U CN201420293998U CN203881713U CN 203881713 U CN203881713 U CN 203881713U CN 201420293998 U CN201420293998 U CN 201420293998U CN 203881713 U CN203881713 U CN 203881713U
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Abstract
The utility model relates to the field of monitoring and discloses an online ultrasonic wave monitoring system for SF6 gas in a transformer substation. The online ultrasonic wave monitoring system comprises a plurality of terminal ultrasonic wave gas detection acquirers which are connected with an ultrasonic wave monitoring main machine, and the ultrasonic wave monitoring main machine is also connected with a standard point acquirer and a fan and is connected with a monitoring system or is connected with a relay protection system by virtue of a switching value port. The online ultrasonic wave monitoring system has the advantages that the concentration of SF6 gas and the concentration of oxygen in ambient air are detected by virtue of the terminal ultrasonic wave gas detection acquirers, and when the concentration of the SF6 gas in the ambient air is too high or the oxygen in the ambient air is deficient, alarming can be carried out in real time, and meanwhile, the fan is automatically started for ventilation; the online ultrasonic wave monitoring system has complete functions such as temperature and humidity detection, voice prompt, manual air exhaust, fire fighting linkage, uploading of data to a PC (personal computer) and query of historical data, and can be widely applied to various equipment environments of an SF6 opening and closing room, an SF6 switch house, an SF6 main transformer room, a gas insulated switchgear (GIS) room and the like at different voltage classes.
Description
Technical field
The utility model relates to transformer station's gas monitoring device, relates in particular to a kind of SF of transformer station
6gas ultrasound wave on-line monitoring system.
Background technology
While containing the sulfur hexafluoride gas of variable concentrations in transformer station's air, its monitoring mode generally includes: effluve ionization method, electrochemical process, infrared imaging method and infra-red sepectrometry (NDIR), wherein:
Effluve ionization method: the electric current of effluve just changes to some extent, determines the size of the concentration of the sulfur hexafluoride leaking in air by measuring the size of discharge current.This type of device sensor life-span is short, can not long-term work, and drift is large, easily wrong report.
Electrochemical process: the principle of electrochemical techniques is catalyst surfaces that detected gas touches 200 ℃ of left and right high temperature, and there is with it corresponding chemical reaction, thus produce the change of electric signal, with this, find detected gas.But because its sensor participates in reaction, may produce secondary pollution, sensor life-time is short, regularly replace.
Infrared imaging method: utilize SF
6gas has the characteristic of strong absorption effect, and this principle is commonly used in handheld instrument, and cost is high, be not suitable for building network, cannot realize SF
6gas detects in real time.
Infra-red sepectrometry (NDIR): utilize SF
6gas has the characteristic of strong absorption effect, can quantitatively detect SF
6gas concentration, but sensor price is about 10 times of ultrasonic sensor, for workout cost problem, centralized (bleeder) frameworks of the many employings of manufacturer at present, with vacuum pump, on-the-spot air is extracted in sample analysis instrument and is measured, sample analysis instrument comprises SF
6sensor and multi-path solenoid valve, carry out switching channel by controlling solenoid valve, realizes multimetering, and this scheme has successfully reduced cost.But service life of vacuum pump is not long, also need the dust of periodic cleaning sensing point, otherwise wrong report, regular cleaning has increased the input in later stage, SF in an other cover system
6sensor only has one, and sensor damages also just paralysis of whole system.
Utility model content
The problem existing for solving prior art, the utility model object is to provide a kind of SF of transformer station
6gas ultrasound wave on-line monitoring system, uses Ultrasonic Detection and Dual channel detection technology, has overcome short, bulky, poor stability in serviceable life, high in cost of production shortcoming, can be quantitative, real-time to SF
6gas concentration is carried out high-precision detection, because its cost is low, can realize large-area popularization, application in addition.
A kind of SF of transformer station that the utility model embodiment provides
6gas ultrasound wave on-line monitoring system; comprise that several terminal ultrasonic gas detect collector; described terminal ultrasonic gas detects collector and is connected with monitoring ultrasonic main frame; monitoring ultrasonic main frame is also connected with standard point collector and blower fan, and described monitoring ultrasonic main frame is connected or is connected with relay protection system by switching value port with supervisory system.
Preferably, described blower fan is connected with monitoring ultrasonic main frame by controller of fan.
Preferably, described monitoring ultrasonic main frame comprises host CPU, and host CPU detects collector by 485 communication interfaces and terminal gas and is connected, and by TCP/IP port, is connected with the PC main frame of controller of fan.
Preferably, described host CPU is connected with respectively voice module, human body induction module, keyboard input, real-time clock module, data memory module, LCD MODULE, alarm output module and control output module.
Preferably, described terminal ultrasonic gas detects collector and comprises detector C PU, and detector C PU connects respectively local warning indicating circuit, SF
6gas concentration measurement module, measurement of oxygen content module, temperature-measuring module and moisture measurement module, and be connected with monitoring ultrasonic main frame by 485 communication modules.
Therefore application the utility model embodiment utilizes the technical scheme of ultrasonic detecting technology, utilizes sound wave at SF
6the slow-footed feature that the velocity ratio of propagating in gas is propagated in atmosphere, realizes high-precision measurement, uses Dual channel detection technology to solve the interference of environmental factor, is not subject to humiture variable effect.This detection method has that precision is high, cost is low, stability advantages of higher, because its cost is low, can realize decentralized architecture, easily realizes the online of system and measures in real time and monitoring automation, is adapted at using in industrial environment.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, does not form to improper restriction of the present utility model, in the accompanying drawings:
Fig. 1 is system architecture schematic diagram.
Fig. 2 is monitoring ultrasonic host function block scheme.
Fig. 3 is ultrasonic gas detector functions block scheme.
In figure: 1-supervisory system; 2-monitoring ultrasonic main frame; 3-standard point collector; 4-controller of fan; 5-blower fan; 6-terminal ultrasonic gas detects collector.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, describe the utility model in detail, in this illustrative examples of the present utility model and explanation, be used for explaining the utility model, but not as to restriction of the present utility model.
As shown in Figure 1, the SF of transformer station of the present utility model
6gas ultrasound wave on-line monitoring system, comprises that several terminal ultrasonic gas detect collector 6, and terminal ultrasonic gas detects collector 6 and is connected with monitoring ultrasonic main frame 2, and monitoring ultrasonic main frame 2 is also connected with standard point collector 3 and blower fan 5; Described monitoring ultrasonic main frame 2 is connected or is connected with relay protection system by switching value port with supervisory system 1.Wherein, blower fan 5 is connected with monitoring ultrasonic main frame 2 by controller of fan 4.
As shown in Figure 2, monitoring ultrasonic main frame 2 comprises host CPU, and host CPU detects collector 6 by 485 communication interfaces and terminal ultrasonic gas and is connected, and by TCP/IP port, is connected with the PC main frame of controller of fan 4.Host CPU is connected with respectively voice module, human body induction module, keyboard input, real-time clock module, data memory module, LCD MODULE, alarm output module and control output module.
As shown in Figure 3, terminal ultrasonic gas detects collector 6 and comprises detector C PU, and detector C PU connects respectively local warning indicating circuit, SF
6gas concentration measurement module, measurement of oxygen content module, temperature-measuring module and moisture measurement module, and be connected with monitoring ultrasonic main frame 2 by 485 communication modules.
This SF
6leakage Gas online monitoring alarm system is according to current power system, to emphasize the situation of safety in production, and in conjunction with the development of current intelligent grid, the advanced technology of utilizing Ultrasonic Detection to combine with Dual channel detection, merges software and hardware and can reduce technology, for SF is being installed
6the staff of the electrical room of equipment provides health of human body safeguard protection and measures the intelligent on-line monitoring system of body design, exploitation.
Its major function general introduction:
SF in testing environment air
6gas concentration and oxygen concentration, SF in environment
6gas concentration exceeds standard or anoxic, can report to the police in real time; Start blower fan simultaneously automatically and ventilates, and there is humiture detection, voice message, mobile phone air draft, fire-fighting link, upload data to the perfect functions such as PC, the inquiry of historical data, can be widely used in the SF of various electric pressures
6open and close chamber, SF
6switch gear room, SF
6transformer chamber, combined electrical apparatus chamber (GIS chamber) etc.
Its principal feature:
During 1 high-precision real, detect
System ultrasonic velocity is measured and to be combined with time difference principle, can be quantitatively, real-time online measuring SF
6gas concentration.
2 Multiple detection functions
Mainly for SF
6leakage Gas and anoxic conditions detect, and have the auxiliary detection function of the environmental datas such as temperature, humidity concurrently, meet < < electrical safe working order > > requirement completely.
3 ultralow rate of false alarms
For the high shortcoming of traditional product rate of false alarm, adopt binary channels measuring principle, stopped the impact that air turbulence, humiture variation etc. bring, fundamentally solved the unsettled problem of system.
4 rational system architectures
Adopt decentralized architecture, can to detector function, carry out software and hardware flexibly by outer setting easily and reduce, to adapt to the demand of different occasions, try one's best and save cost for client.
5 long-life type designs
For life-extending, SF
6sensor adopts service intermittent, job stability and the serviceable life of greatly having improved sensor.
6 low-cost designs
Select performance to be stable into this low ultrasonic sensor, adapt to spread, application.
7 antijamming capabilities are strong
Interference problem has been done to sufficient consideration, on hardware circuit and Software for Design, adopted respectively multiple effective anti-interference processing method, guaranteed the steady operation of system, and the accuracy of measurement data.
The principle of work of native system:
This SF
6leakage Gas online monitoring alarm system mainly comprises detector and monitoring ultrasonic main frame.Detector is the core component of native system, and Main Function is to detect the SF that respectively isolates air chamber leakage in air insulation switch (GIS) switchgear building
6gas concentration, indoor scene temperature, humidity, oxygen content, and by communication bus, send the data value detecting to monitoring ultrasonic main frame.Its function as shown in Figure 1.
The measurement data that the accurate receiver gases detecting device of monitoring ultrasonic main frame sends, and concentrate arrangement, analysis, judging whether transfinites, and exceeds and reports to the police, starts blower fan; There is voice broadcast function, when having personnel near reporting on-site parameters; There is fire-fighting link function, when having fire alarm, the on-the-spot blower fan of No starting; There is data upload function, detecting data upload to PC, to facilitate remote inquiry.Its function as shown in Figure 2.
The technical scheme above the utility model embodiment being provided is described in detail, applied specific case herein the principle of the utility model embodiment and embodiment are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the utility model embodiment; , for one of ordinary skill in the art, according to the utility model embodiment, in embodiment and range of application, all will change, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (5)
- The SF of 1.Yi Zhong transformer station 6gas ultrasound wave on-line monitoring system; comprise that several terminal ultrasonic gas detect collector; it is characterized in that: described terminal ultrasonic gas detects collector and is connected with monitoring ultrasonic main frame; monitoring ultrasonic main frame is also connected with standard point collector and blower fan, and described monitoring ultrasonic main frame is connected or is connected with relay protection system by switching value port with supervisory system.
- 2. a kind of SF of transformer station according to claim 1 6gas ultrasound wave on-line monitoring system, is characterized in that: described blower fan is connected with monitoring ultrasonic main frame by controller of fan.
- 3. a kind of SF of transformer station according to claim 1 6gas ultrasound wave on-line monitoring system, is characterized in that: described monitoring ultrasonic main frame comprises host CPU, and host CPU detects collector by 485 communication interfaces and terminal ultrasonic gas and is connected, and by TCP/IP port, is connected with the PC main frame of controller of fan.
- 4. a kind of SF of transformer station according to claim 3 6gas ultrasound wave on-line monitoring system, is characterized in that: described host CPU is connected with respectively voice module, human body induction module, keyboard input, real-time clock module, data memory module, LCD MODULE, alarm output module and control output module.
- 5. a kind of SF of transformer station according to claim 1 6gas ultrasound wave on-line monitoring system, is characterized in that: described terminal ultrasonic gas detects collector and comprises detector C PU, and detector C PU connects respectively local warning indicating circuit, SF 6gas concentration measurement module, measurement of oxygen content module, temperature-measuring module and moisture measurement module, and be connected with monitoring ultrasonic main frame by 485 communication modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420293998.4U CN203881713U (en) | 2014-06-04 | 2014-06-04 | Online ultrasonic wave monitoring system for SF6 gas in transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420293998.4U CN203881713U (en) | 2014-06-04 | 2014-06-04 | Online ultrasonic wave monitoring system for SF6 gas in transformer substation |
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| Publication Number | Publication Date |
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| CN203881713U true CN203881713U (en) | 2014-10-15 |
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| CN201420293998.4U Expired - Fee Related CN203881713U (en) | 2014-06-04 | 2014-06-04 | Online ultrasonic wave monitoring system for SF6 gas in transformer substation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833390A (en) * | 2015-03-27 | 2015-08-12 | 国网上海市电力公司 | SF6 gas monitoring device |
| CN105181021A (en) * | 2015-09-18 | 2015-12-23 | 四川菲博斯科技有限责任公司 | High-voltage electrical equipment operation environment monitoring system |
| CN106248787A (en) * | 2016-10-18 | 2016-12-21 | 国网山东省电力公司烟台供电公司 | A kind of transformer station SF6 gas ultrasound monitoring device |
| CN106556125A (en) * | 2016-12-08 | 2017-04-05 | 华北电力大学（保定） | A kind of GIS room ventilations illumination intelligence control system |
| CN107422077A (en) * | 2017-08-16 | 2017-12-01 | 杭州柯林电气股份有限公司 | A kind of transformer station SF6Gas on-line monitoring system |
-
2014
- 2014-06-04 CN CN201420293998.4U patent/CN203881713U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833390A (en) * | 2015-03-27 | 2015-08-12 | 国网上海市电力公司 | SF6 gas monitoring device |
| CN105181021A (en) * | 2015-09-18 | 2015-12-23 | 四川菲博斯科技有限责任公司 | High-voltage electrical equipment operation environment monitoring system |
| CN106248787A (en) * | 2016-10-18 | 2016-12-21 | 国网山东省电力公司烟台供电公司 | A kind of transformer station SF6 gas ultrasound monitoring device |
| CN106556125A (en) * | 2016-12-08 | 2017-04-05 | 华北电力大学（保定） | A kind of GIS room ventilations illumination intelligence control system |
| CN107422077A (en) * | 2017-08-16 | 2017-12-01 | 杭州柯林电气股份有限公司 | A kind of transformer station SF6Gas on-line monitoring system |
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Granted publication date: 20141015 Termination date: 20190604 |
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