CN104076127B - A kind of sulfur hexafluoride humidity sensor accuracy pick-up unit - Google Patents
A kind of sulfur hexafluoride humidity sensor accuracy pick-up unit Download PDFInfo
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- CN104076127B CN104076127B CN201410335042.0A CN201410335042A CN104076127B CN 104076127 B CN104076127 B CN 104076127B CN 201410335042 A CN201410335042 A CN 201410335042A CN 104076127 B CN104076127 B CN 104076127B
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- 229910018503 SF6 Inorganic materials 0.000 title claims abstract description 39
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 39
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000004458 analytical method Methods 0.000 abstract description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
本发明提供一种六氟化硫湿度传感器准确度检测装置，其特征在于：包括罐体、镜面式六氟化硫湿度传感器、阻容式六氟化硫湿度密度传感器、电机、磁性联轴器和设置在罐体内的风扇，其中罐体上设有安全阀、压力表、真空计、进气口、出气口和用于安装待检测六氟化硫湿度传感器的转接头，镜面式六氟化硫湿度传感器和阻容式六氟化硫湿度密度传感器安装在罐体内壁上，出气口经阀门接露点仪，磁性联轴器嵌装在罐体上，磁性联轴器的外转子与电机的输出轴连接，内转子与风扇固定连接。本发明由于同时采用镜面式六氟化硫湿度传感器和阻容式六氟化硫湿度密度传感器对被校验传感器的测量准确度进行分析，具有检测精度高、分析速度快等优点。
The invention provides an accuracy detection device for a sulfur hexafluoride humidity sensor, which is characterized in that it includes a tank body, a mirror-surface sulfur hexafluoride humidity sensor, a resistance-capacity sulfur hexafluoride humidity density sensor, a motor, and a magnetic coupling And the fan arranged in the tank, wherein the tank is equipped with a safety valve, pressure gauge, vacuum gauge, air inlet, air outlet and an adapter for installing the sulfur hexafluoride humidity sensor to be detected, mirror-type hexafluoride The sulfur humidity sensor and the resistance-capacitance sulfur hexafluoride humidity density sensor are installed on the inner wall of the tank, the gas outlet is connected to the dew point meter through the valve, and the magnetic coupling is embedded in the tank. The outer rotor of the magnetic coupling is connected to the motor. The output shaft is connected, and the inner rotor is fixedly connected with the fan. The present invention has the advantages of high detection precision, fast analysis speed and the like because the mirror surface type sulfur hexafluoride humidity sensor and the resistive capacity type sulfur hexafluoride humidity density sensor are used to analyze the measurement accuracy of the calibrated sensor at the same time.
Description
技术领域technical field
本发明提供一种六氟化硫湿度传感器准确度检测装置，属于六氟化硫气体湿度检测仪器技术。The invention provides an accuracy detection device for a sulfur hexafluoride humidity sensor, which belongs to the technology of sulfur hexafluoride gas humidity detection instruments.
背景技术Background technique
SF6气体由于具有良好的绝缘特性和灭弧特性，已在高压电气设备中得到广泛应用。由于SF6气体制造环节、电气设备制造和安装过程、设备泄露、吸附剂等因素，导致SF6气体中水分含量增加，从而使绝缘物内表面发生闪络故障几率增加；断路器由于受潮或产生凝露，使其绝缘性能下降；SF6气体中水分会参与SF6气体的分解反应，生成腐蚀性极强的分解产物，进而腐蚀电气设备内金属原件和密封绝缘材料，缩短电气设备的使用寿命。SF 6 gas has been widely used in high-voltage electrical equipment due to its good insulating properties and arc-extinguishing properties. Due to factors such as the SF 6 gas manufacturing process, electrical equipment manufacturing and installation process, equipment leakage, and adsorbents, the moisture content in the SF 6 gas increases, which increases the probability of flashover failures on the inner surface of the insulation; Condensation will reduce its insulation performance; moisture in SF 6 gas will participate in the decomposition reaction of SF 6 gas to generate highly corrosive decomposition products, which will corrode the metal components and sealing insulation materials in electrical equipment, and shorten the service life of electrical equipment .
目前随着国内智能电网的不断发展，大量的电气设备中安装了SF6气体湿度密度检测装置，此类监测装置大部分为外置式的监测装置，测量精度相对要低，且易受到压力的影响导致测量准确性降低。At present, with the continuous development of domestic smart grids, SF 6 gas humidity density detection devices are installed in a large number of electrical equipment. Most of these monitoring devices are external monitoring devices with relatively low measurement accuracy and are easily affected by pressure. resulting in reduced measurement accuracy.
发明内容Contents of the invention
本发明的目的是提供一种测量精度高、工作性能优良的一种六氟化硫湿度传感器准确度检测装置。其技术方案为：The object of the present invention is to provide an accuracy detection device for a sulfur hexafluoride humidity sensor with high measurement precision and excellent work performance. Its technical solution is:
一种六氟化硫湿度传感器准确度检测装置，其特征在于：包括罐体、镜面式六氟化硫湿度传感器、阻容式六氟化硫湿度密度传感器、电机、磁性联轴器和设置在罐体内的风扇，其中罐体上设有安全阀、压力表、真空计、进气口、出气口和用于安装待检测六氟化硫湿度传感器的转接头，镜面式六氟化硫湿度传感器和阻容式六氟化硫湿度密度传感器安装在罐体内壁上，出气口经阀门接露点仪，磁性联轴器嵌装在罐体上，磁性联轴器的外转子与电机的输出轴连接，内转子与风扇固定连接。A device for detecting the accuracy of a sulfur hexafluoride humidity sensor, characterized in that it includes a tank body, a mirror-surface sulfur hexafluoride humidity sensor, a resistance-capacity sulfur hexafluoride humidity density sensor, a motor, a magnetic coupling and a The fan in the tank, wherein the tank is equipped with a safety valve, a pressure gauge, a vacuum gauge, an air inlet, an air outlet, and an adapter for installing the sulfur hexafluoride humidity sensor to be detected, and the mirror surface sulfur hexafluoride humidity sensor The resistance-capacitance sulfur hexafluoride humidity and density sensor is installed on the inner wall of the tank, the gas outlet is connected to the dew point meter through the valve, the magnetic coupling is embedded in the tank, and the outer rotor of the magnetic coupling is connected to the output shaft of the motor , the inner rotor is fixedly connected with the fan.
所述的一种六氟化硫湿度传感器准确度检测装置，安装待检测六氟化硫湿度传感器的接口为2-4个。In the device for detecting the accuracy of the sulfur hexafluoride humidity sensor, there are 2-4 interfaces for installing the sulfur hexafluoride humidity sensor to be detected.
其工作原理为：先将待检测六氟化硫湿度传感器经转接头安装到罐体上。检测时，先将罐体内充入一定湿度的氮气至设定压力，开启电机风扇转动，使罐体内氮气湿度均衡，由镜面式六氟化硫湿度传感器和阻容式六氟化硫湿度密度传感器读出罐体内氮气的湿度和密度，然后分析待检测六氟化硫湿度传感器的输出值，并与读出的湿度和密度进行对比，以判断待检测六氟化硫湿度传感器的准确度。Its working principle is: first install the sulfur hexafluoride humidity sensor to be detected on the tank body through the adapter. When testing, first fill the tank with nitrogen with a certain humidity to the set pressure, and turn on the motor fan to make the nitrogen humidity in the tank equal. Read the humidity and density of nitrogen in the tank, then analyze the output value of the sulfur hexafluoride humidity sensor to be detected, and compare it with the read humidity and density to judge the accuracy of the sulfur hexafluoride humidity sensor to be detected.
本发明与现有技术相比，其优点在于：由于同时采用镜面式六氟化硫湿度传感器、阻容式六氟化硫湿度密度传感器对被校验传感器的测量准确度进行分析，检测精度高，分析速度快。Compared with the prior art, the present invention has the advantages of high detection accuracy due to the simultaneous use of the mirror-surface sulfur hexafluoride humidity sensor and the resistance-capacity sulfur hexafluoride humidity density sensor to analyze the measurement accuracy of the calibrated sensor , the analysis speed is fast.
附图说明Description of drawings
图1是本发明实施例的结构示意图。Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
图中：1、罐体 2、镜面式六氟化硫湿度传感器 3、电机 4、磁性联轴器 5、风扇 6、安全阀 7、压力表 8、真空计 9、进气口 10、出气口 11、转接头 12、阀门 13、露点仪 14、阻容式六氟化硫湿度密度传感器In the figure: 1. Tank body 2. Mirror surface sulfur hexafluoride humidity sensor 3. Motor 4. Magnetic coupling 5. Fan 6. Safety valve 7. Pressure gauge 8. Vacuum gauge 9. Air inlet 10. Air outlet 11. Adapter 12. Valve 13. Dew point meter 14. Resistance-capacitance sulfur hexafluoride humidity density sensor
具体实施方式Detailed ways
在图1所示的实施例中：包括罐体1、镜面式六氟化硫湿度传感器2、和阻容式六氟化硫湿度密度传感器14、电机3、磁性联轴器4和设置在罐体1内的风扇5，其中罐体1上设有安全阀6、压力表7、真空计8、进气口9、出气口10和4个用于安装待检测六氟化硫湿度传感器的转接头11，镜面式六氟化硫湿度传感器2和和阻容式六氟化硫湿度密度传感器14安装在罐体1内壁上，出气口10经阀门12接露点仪13，磁性联轴器4嵌装在罐体1上，磁性联轴器4的外转子与电机3的输出轴连接，内转子与风扇5固定连接。In the embodiment shown in Fig. 1: comprise tank body 1, mirror type sulfur hexafluoride humidity sensor 2, and resistive capacity type sulfur hexafluoride humidity density sensor 14, motor 3, magnetic coupling 4 and be arranged on the tank The fan 5 in the body 1, wherein the tank body 1 is provided with a safety valve 6, a pressure gauge 7, a vacuum gauge 8, an air inlet 9, an air outlet 10 and 4 rotating shafts for installing the sulfur hexafluoride humidity sensor to be detected. The joint 11, the mirror surface type sulfur hexafluoride humidity sensor 2 and the resistance capacity type sulfur hexafluoride humidity density sensor 14 are installed on the inner wall of the tank body 1, the gas outlet 10 is connected to the dew point meter 13 through the valve 12, and the magnetic coupling 4 is embedded Installed on the tank body 1, the outer rotor of the magnetic coupling 4 is connected with the output shaft of the motor 3, and the inner rotor is fixedly connected with the fan 5.
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| CN104459043B (en) * | 2014-11-28 | 2016-02-03 | 苏州热工研究院有限公司 | The calibration steps of generator of nuclear power station hydrogen supply system moisture probe |
| CN105353091B (en) * | 2015-11-30 | 2017-05-10 | 无锡拓能自动化科技有限公司 | Multifunctional gas sensor calibration container |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1725015A (en) * | 2004-10-10 | 2006-01-25 | 陈书欣 | High-tension switch electrical equipment SF6 gas water content on-line monitoring device |
| CN102042899A (en) * | 2009-10-21 | 2011-05-04 | 浙江华仪电器科技股份有限公司 | Device and method for detecting gas leakage of sulfur hexafluoride high pressure vacuum switch |
| CN102169113A (en) * | 2011-01-19 | 2011-08-31 | 四川电力科学研究院 | Verifying device and method for online sulfur hexafluoride hygrometer |
| CN204008607U (en) * | 2014-07-15 | 2014-12-10 | 国家电网公司 | A kind of sulfur hexafluoride humidity sensor accuracy pick-up unit |
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| CN202033344U (en) * | 2011-01-19 | 2011-11-09 | 四川电力科学研究院 | Device for verifying sulfur hexafluoride on-line hygrometer |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1725015A (en) * | 2004-10-10 | 2006-01-25 | 陈书欣 | High-tension switch electrical equipment SF6 gas water content on-line monitoring device |
| CN102042899A (en) * | 2009-10-21 | 2011-05-04 | 浙江华仪电器科技股份有限公司 | Device and method for detecting gas leakage of sulfur hexafluoride high pressure vacuum switch |
| CN102169113A (en) * | 2011-01-19 | 2011-08-31 | 四川电力科学研究院 | Verifying device and method for online sulfur hexafluoride hygrometer |
| CN204008607U (en) * | 2014-07-15 | 2014-12-10 | 国家电网公司 | A kind of sulfur hexafluoride humidity sensor accuracy pick-up unit |
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