CN204461493U - A kind of SF 6gas monitoring apparatus - Google Patents
A kind of SF 6gas monitoring apparatus Download PDFInfo
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- CN204461493U CN204461493U CN201520180411.3U CN201520180411U CN204461493U CN 204461493 U CN204461493 U CN 204461493U CN 201520180411 U CN201520180411 U CN 201520180411U CN 204461493 U CN204461493 U CN 204461493U
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- oxygen content
- host computer
- gas concentration
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Abstract
The utility model relates to a kind of SF
6gas monitoring apparatus, is arranged in air insulation switch switchgear building, external host computer, SF
6gas monitoring apparatus comprises monitoring host computer and sensor unit, and described monitoring host computer comprises chip, central controller and communication interface, and described sensor unit comprises SF
6concentration ultrasonic detector, moisture detector, temperature detector and oxygen content detecting device, described SF
6concentration ultrasonic detector and moisture detector are all connected with the input end of described chip; The output terminal of described chip is connected with described central controller; Described temperature detector is all connected with the input end of described central controller with oxygen content detecting device, and the output terminal of described central controller is connected with described host computer by described communication interface.SF of the present utility model
6gas monitoring apparatus, can detect the SF that in air insulation switch switchgear building, each isolation air chamber leaks
6gas concentration, indoor scene temperature, humidity, oxygen content, and send the data value detected to host computer.
Description
Technical field
The utility model relates to a kind of SF
6gas monitoring apparatus.
Background technology
Due to SF micro-in air
6the detection of gas is more difficult, and at present, the principle widely applied is many based on effluve ionization method, infrared absorption, electrochemical process, ultrasonic correlation detection technology.
Effluve ionization method is the normal detection method adopted in current hand-held leak locator, when containing the sulfur hexafluoride gas of variable concentrations in air, the electric current of effluve just changes to some extent, determines the size of the concentration of the sulfur hexafluoride leaked in air by measuring the size of this discharge current.This type of equipment volume is little, is convenient to build network, and cost is low, but its high-voltage corona discharge sensor life-time is shorter, work that can not be steady in a long-term, and drift is large, easily produces wrong report situation, is not suitable for SF
6quantitative on-line checkingi.
Infrared absorption divides laser class and ordinary light source type, and it utilizes SF
6gas has the absorption of strong row feature to infrared ray detects, can quantitative SF in testing environment
6gas concentration, but equipment is bulky, and sense cycle is long, be not suitable for building network and detecting in real time, real laser class cost is very high, also has some pseudo-laser classes in the market, actual is common infrared light supply type, although cost is low, its stability is just difficult to ensure.
Electrochemical process also has great breakthrough, SF in the quantitative testing environment of energy
6gas concentration, has good stability, but due to its sensor participation reaction, may produce secondary pollution, sensor life-time is shorter, regularly replace sensor, adds later stage input.
Use ultrasonic correlation detection technology, when the mass difference of the two kinds of gases forming binary mixture is larger, sound propagation velocity changes with the difference of two kinds of gas compositions.This detection method has that precision is high, simple to operate, cost is low, stability advantages of higher, easily realizes the On-line sampling system of system in addition, realizes monitoring automation, be adapted at using in industrial environment, the experiment proved that principle simple possible.
Utility model content
The purpose of this utility model, exactly in order to solve above-mentioned prior art Problems existing, and provides a kind of SF
6gas monitoring apparatus, uses ultrasonic detecting technology, overcomes the shortcomings such as short, bulky, poor stability in serviceable life, can be quantitative, real-time to SF
6gas concentration carries out high-precision detection.
The technical scheme realizing above-mentioned purpose is: a kind of SF
6gas monitoring apparatus, is arranged in air insulation switch switchgear building, external host computer, described SF
6gas monitoring apparatus comprises monitoring host computer and sensor unit, and described monitoring host computer comprises chip, central controller and communication interface, and described sensor unit comprises SF
6concentration ultrasonic detector, moisture detector, temperature detector and oxygen content detecting device, wherein:
Described SF
6concentration ultrasonic detector and moisture detector are all connected with the input end of described chip; The output terminal of described chip is connected with described central controller;
Described temperature detector is all connected with the input end of described central controller with oxygen content detecting device, and the output terminal of described central controller is connected with described host computer by described communication interface.
Above-mentioned a kind of SF
6gas monitoring apparatus, wherein, described SF
6concentration ultrasonic detector detects the SF in described air insulation switch switchgear building
6gas concentration data, and by this SF
6gas concentration data give described chip by 485 transmission;
Described moisture detector detects the humidity data in described air insulation switch switchgear building, and gives described chip by this humidity data by 485 transmission;
Described chip is by SF
6gas concentration data and humidity data are transferred to described central controller;
Described temperature detector detects the temperature data in described air insulation switch switchgear building, and gives described central controller by this temperature data by 485 transmission;
Described oxygen content detecting device detects the oxygen content data in described air insulation switch switchgear building, and gives described central controller by this oxygen content data by 485 transmission;
Described central controller is by operational analysis SF
6whether gas concentration data, humidity data, temperature data and oxygen content data exceed standard, if when exceeding standard, described central controller by exceed standard accordingly data by communications interface transmission give described host computer, for the reference of operator on duty as site disposal.
Above-mentioned a kind of SF
6gas monitoring apparatus, wherein, is set with SF in described central controller
6gas concentration alarm setting value and oxygen content warning setting value, described SF
6gas concentration alarm setting value between 100-2000ppm, described oxygen content warning setting value between 0-30%, as described SF
6gas concentration data are higher than described SF
6when gas concentration alarm setting value or described oxygen content data are lower than described oxygen content warning setting value, described central controller automatic alarm, and record warning message for inquiry later.
SF of the present utility model
6gas monitoring apparatus, can detect the SF that in air insulation switch switchgear building, each isolation air chamber leaks
6gas concentration, indoor scene temperature, humidity, oxygen content, and send by 485 communication buss the data value detected to host computer.
Accompanying drawing explanation
Fig. 1 is SF of the present utility model
6the structural representation of gas monitoring apparatus.
Embodiment
In order to make those skilled in the art can understand the technical solution of the utility model better, below in conjunction with accompanying drawing, the utility model is described in further detail.
Refer to Fig. 1, embodiment of the present utility model, a kind of SF
6gas monitoring apparatus, is arranged in air insulation switch switchgear building, external host computer 30, SF
6gas monitoring apparatus comprises monitoring host computer 1 and sensor unit, and monitoring host computer 1 comprises chip 11, central controller 12 and communication interface 13, and sensor unit comprises SF
6concentration ultrasonic detector 21, moisture detector 22, temperature detector 23 and oxygen content detecting device 24.
SF
6concentration ultrasonic detector 21 is all connected with the input end of chip 11 with moisture detector 22; The output terminal of chip 11 is connected with central controller 12; Temperature detector 23 is all connected with the input end of central controller 12 with oxygen content detecting device 24, and the output terminal of central controller 12 is connected with host computer 30 by communication interface 13.
SF of the present utility model
6the principle of work of gas monitoring apparatus is: SF
6concentration ultrasonic detector 21 detects the SF in air insulation switch switchgear building
6gas concentration data, and by this SF
6gas concentration data pass through 485 transmission to chip 11; Moisture detector 22 detects the humidity data in air insulation switch switchgear building, and this humidity data is passed through 485 transmission to chip 11; Chip 11 is by SF
6gas concentration data and humidity data are transferred to central controller 12; Temperature detector 23 detects the temperature data in air insulation switch switchgear building, and this temperature data is passed through 485 transmission to central controller 12; Oxygen content detecting device 24 detects the oxygen content data in air insulation switch switchgear building, and this oxygen content data is passed through 485 transmission to central controller 12; Central controller 12 is by operational analysis SF
6whether gas concentration data, humidity data, temperature data and oxygen content data exceed standard, if when exceeding standard, the data that exceed standard accordingly are transferred to host computer 30 by communication interface 13 by central controller 12, for the reference of operator on duty as site disposal.
SF is set with in central controller 12
6gas concentration alarm setting value and oxygen content warning setting value, SF
6gas concentration alarm setting value is between 100-2000ppm, and oxygen content warning setting value, between 0-30%, works as SF
6gas concentration data are higher than SF
6when gas concentration alarm setting value or oxygen content data are lower than oxygen content warning setting value, central controller 12 automatic alarm, and record warning message for inquiry later.
The function of monitoring host computer 1 of the present utility model comprises the measurement data receiving each detecting device like clockwork and send, and carries out arranging for future use; Judge whether field data exceeds setting limit, exceeds, carry out reporting to the police, starting the control output actions such as blower fan; Liquid crystal exports on-site parameters, alarm history data, fan starting time last time, and carry out set of time by keyboard, liquid crystal combination process, blower fan work optimum configurations, communications setting, alarm limit arrange, and manually start blower fan function; Communicate with speech aid, the interruption of voice responsive device, and the data requiring voice to quote are passed to voice device; There is data upload function, detection data upload to upper computer software, to facilitate remote inquiry.
As SF in environment
6when gas concentration or oxygen content change, SF
6concentration ultrasonic detector 21 and oxygen content detecting device 24 can capture this change at once, and convert the variable quantity data detected to digital signal, comprehensively monitoring main frame 1 is sent to by RS-485 fieldbus, the detection data that each detecting device transmits by monitoring host computer 1 one aspect show on a display screen, on the other hand, by operational analysis, compare with the various intrinsic parameter be stored in central controller 12, judge---whether every data exceed standard.Initiatively data are sent to host computer 30, for the reference of operator on duty as site disposal when exceeding standard.
Work as SF
6higher than alarm setting value, (regulatory requirements is 1000ppm to concentration, native system can be equipped with within the scope of 100-2000ppm) or oxygen content lower than alarm setting value 18% (can be equipped with within the scope of 0-30%) time, central controller 12 will be reported to the police automatically, start blower fan to ventilate simultaneously, and record warning message for inquiry later.
In sum, the SF that in air insulation switch switchgear building, each isolation air chamber leaks can be detected
6gas concentration, indoor scene temperature, humidity, oxygen content, and send by 485 communication buss the data value detected to host computer, use ultrasonic detecting technology, overcome the shortcomings such as short, bulky, poor stability in serviceable life, can be quantitative, real-time to SF
6gas concentration carries out high-precision detection.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, when not departing from spirit and scope of the present utility model, various conversion or modification can also be made, therefore all equivalent technical schemes also should belong to category of the present utility model, should be limited by each claim.
Claims (3)
1. a SF
6gas monitoring apparatus, be arranged in air insulation switch switchgear building, external host computer, is characterized in that, described SF
6gas monitoring apparatus comprises monitoring host computer and sensor unit, and described monitoring host computer comprises chip, central controller and communication interface, and described sensor unit comprises SF
6concentration ultrasonic detector, moisture detector, temperature detector and oxygen content detecting device, wherein:
Described SF
6concentration ultrasonic detector and moisture detector are all connected with the input end of described chip; The output terminal of described chip is connected with described central controller;
Described temperature detector is all connected with the input end of described central controller with oxygen content detecting device, and the output terminal of described central controller is connected with described host computer by described communication interface.
2. a kind of SF according to claim 1
6gas monitoring apparatus, is characterized in that, described SF
6concentration ultrasonic detector detects the SF in described air insulation switch switchgear building
6gas concentration data, and by this SF
6gas concentration data give described chip by 485 transmission;
Described moisture detector detects the humidity data in described air insulation switch switchgear building, and gives described chip by this humidity data by 485 transmission;
Described chip is by SF
6gas concentration data and humidity data are transferred to described central controller;
Described temperature detector detects the temperature data in described air insulation switch switchgear building, and gives described central controller by this temperature data by 485 transmission;
Described oxygen content detecting device detects the oxygen content data in described air insulation switch switchgear building, and gives described central controller by this oxygen content data by 485 transmission;
Described central controller is by operational analysis SF
6whether gas concentration data, humidity data, temperature data and oxygen content data exceed standard, if when exceeding standard, described central controller by exceed standard accordingly data by communications interface transmission give described host computer, for the reference of operator on duty as site disposal.
3. a kind of SF according to claim 2
6gas monitoring apparatus, is characterized in that, is set with SF in described central controller
6gas concentration alarm setting value and oxygen content warning setting value, described SF
6gas concentration alarm setting value between 100-2000ppm, described oxygen content warning setting value between 0-30%, as described SF
6gas concentration data are higher than described SF
6when gas concentration alarm setting value or described oxygen content data are lower than described oxygen content warning setting value, described central controller automatic alarm, and record warning message for inquiry later.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520180411.3U CN204461493U (en) | 2015-03-27 | 2015-03-27 | A kind of SF 6gas monitoring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520180411.3U CN204461493U (en) | 2015-03-27 | 2015-03-27 | A kind of SF 6gas monitoring apparatus |
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| Publication Number | Publication Date |
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| CN204461493U true CN204461493U (en) | 2015-07-08 |
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| CN201520180411.3U Active CN204461493U (en) | 2015-03-27 | 2015-03-27 | A kind of SF 6gas monitoring apparatus |
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Cited By (3)
| 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 |
| CN108362933A (en) * | 2018-02-02 | 2018-08-03 | 浙江金盾风机股份有限公司 | A kind of universal wind turbine starting condition measuring device |
| CN112394106A (en) * | 2020-11-02 | 2021-02-23 | 珠海华瑞诚科技有限公司 | Distribution room system and SF6 gas concentration detection method |
-
2015
- 2015-03-27 CN CN201520180411.3U patent/CN204461493U/en active Active
Cited By (4)
| 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 |
| CN108362933A (en) * | 2018-02-02 | 2018-08-03 | 浙江金盾风机股份有限公司 | A kind of universal wind turbine starting condition measuring device |
| CN108362933B (en) * | 2018-02-02 | 2021-07-23 | 浙江金盾风机股份有限公司 | General type fan starting situation measuring device |
| CN112394106A (en) * | 2020-11-02 | 2021-02-23 | 珠海华瑞诚科技有限公司 | Distribution room system and SF6 gas concentration detection method |
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