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CN204007679U - A kind of band is depressed the verification platform of sulfur hexafluoride gas humidity sensor - Google Patents

A kind of band is depressed the verification platform of sulfur hexafluoride gas humidity sensor Download PDF

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Publication number
CN204007679U
CN204007679U CN201420388962.4U CN201420388962U CN204007679U CN 204007679 U CN204007679 U CN 204007679U CN 201420388962 U CN201420388962 U CN 201420388962U CN 204007679 U CN204007679 U CN 204007679U
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sulfur hexafluoride
valve
gas
humidity sensor
humidity
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CN201420388962.4U
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祁炯
苏镇西
赵跃
袁小芳
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Anhui Electric Power Co Ltd
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Anhui Electric Power Co Ltd
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Priority to PCT/CN2014/095811 priority patent/WO2016008273A1/en
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Abstract

本实用新型提供一种带压下六氟化硫气体湿度传感器的校验平台,包括饱和蒸汽发生器、气源、具有减压过滤装置,其特征是:增设了真空泵、直线电机带动的气缸和传感器标准度检测装置,其中传感器标准度检测装置包括罐体、高精度传感器、电机、磁性联轴器和设置在罐体内的风扇,其中罐体上设有用于安装待检测六氟化硫湿度传感器的转接头,饱和蒸汽发生器配制出来的一定湿度、压力的饱和六氟化硫水蒸气与干燥气体注入罐体内,开启电机风扇使罐体内气体湿度均衡,由高精度传感器读出其湿度和密度,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,并进行校验,工作性能优良。

The utility model provides a verification platform with a sulfur hexafluoride gas humidity sensor under pressure, which includes a saturated steam generator, a gas source, and a decompression filtering device, and is characterized in that: a vacuum pump, a cylinder driven by a linear motor and A sensor standard degree detection device, wherein the sensor standard degree detection device includes a tank body, a high-precision sensor, a motor, a magnetic coupling and a fan arranged in the tank body, wherein the tank body is provided with a sulfur hexafluoride humidity sensor to be detected The adapter, saturated sulfur hexafluoride water vapor and dry gas with a certain humidity and pressure prepared by the saturated steam generator are injected into the tank, and the motor fan is turned on to balance the humidity of the gas in the tank, and the humidity and density are read by a high-precision sensor , and 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, and perform calibration, and the working performance is excellent.

Description

一种带压下六氟化硫气体湿度传感器的校验平台A calibration platform for sulfur hexafluoride gas humidity sensor under pressure

技术领域technical field

本实用新型提供一种带压下六氟化硫气体湿度传感器的校验平台,属于六氟化硫气体湿度传感器校验技术领域。The utility model provides a verification platform of a sulfur hexafluoride gas humidity sensor under pressure, which belongs to the technical field of verification of the sulfur hexafluoride gas humidity sensor.

背景技术Background technique

为对GIS设备进行状态监控,大部分GIS设备中已安装了六氟化硫气体湿度密度传感器,此类传感器经使用一段时间后,测量精度变差,需定期进行校验;当前国内现有的校验技术和设备多为常压下配置不同湿度密度六氟化硫气体对六氟化硫气体湿度密度传感器进行校验,而在实际使用中,六氟化硫气体湿度密度传感器多数情况下处于非常压下工作,因此国内现有的气体配制方法不能满足六氟化硫气体湿度密度传感器的校验需要。In order to monitor the status of GIS equipment, sulfur hexafluoride gas humidity density sensors have been installed in most of the GIS equipment. After a period of use of such sensors, the measurement accuracy will deteriorate, and regular calibration is required; the existing domestic Calibration technology and equipment are mostly equipped with sulfur hexafluoride gas with different humidity densities under normal pressure to calibrate the sulfur hexafluoride gas humidity density sensor, but in actual use, the sulfur hexafluoride gas humidity density sensor is in most cases It works under very low pressure, so the existing domestic gas preparation methods cannot meet the calibration requirements of the sulfur hexafluoride gas humidity density sensor.

实用新型内容Utility model content

本实用新型的目的是提供一种能克服上述缺陷、能解决非常压下六氟化硫气体湿度密度传感器的校验、工作性能优良的一种带压下六氟化硫气体湿度传感器的校验平台。其技术方案为:The purpose of this utility model is to provide a kind of calibration of sulfur hexafluoride gas humidity sensor under pressure which can overcome the above defects, can solve the calibration of sulfur hexafluoride gas humidity density sensor under very pressure, and has excellent working performance. platform. Its technical solution is:

一种带压下六氟化硫气体湿度传感器的校验平台,包括饱和蒸汽发生器、气源、具有干燥功能的减压过滤装置,气源出口依次经减压过滤装置、第一阀门接饱和蒸汽发生器的第二进气口,其特征在于:增设了真空泵、直线电机带动的气缸和传感器标准度检测装置,其中传感器标准度检测装置包括罐体、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、第一进气口、第一出气口和用于安装待检测六氟化硫湿度传感器的转接头,第一进气口接第一四通的第一端,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均安装在罐体内壁上,第一出气口经第八阀门接露点仪,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 calibration platform for a sulfur hexafluoride gas humidity sensor under pressure, including a saturated steam generator, a gas source, and a decompression filter device with a drying function. The second air inlet of the steam generator is characterized in that a vacuum pump, a cylinder driven by a linear motor and a sensor standard degree detection device are added, wherein the sensor standard degree detection device includes a tank body, a mirror-surface sulfur hexafluoride humidity sensor, a resistance A capacitive sulfur hexafluoride humidity density sensor, a motor, a magnetic coupling, and a fan set in the tank, wherein the tank is equipped with a safety valve, a pressure gauge, a vacuum gauge, a first air inlet, a first air outlet and An adapter for installing the sulfur hexafluoride humidity sensor to be detected, the first air inlet is connected to the first end of the first four-way connection, the mirror surface sulfur hexafluoride humidity sensor and the resistance-capacitance sulfur hexafluoride humidity density sensor Installed on the inner wall of the tank, the first air outlet is connected to the dew point meter through the eighth valve, the magnetic coupling is embedded in the tank, the outer rotor of the magnetic coupling is connected with the output shaft of the motor, and the inner rotor is fixedly connected with the fan ;

饱和蒸汽发生器包括设有电加热管的密闭容器、循环泵、曝气头、水箱和温度传感器,其中密闭容器的底部设有第二进气口和水口,温度传感器安装在密闭容器内的底部,曝气头安装在密闭容器内、并与第二进气口连通,水口设有第二阀门,并与水箱底部连通;第二进气口依次经设有第一阀门和减压过滤装置的管道连通气源、依次经第一阀门和第三阀门接第一四通的第二端,并经循环泵接第二四通的第四端;第二四通的第一端连通密闭容器顶部的第二出气口,第二端经设有第四阀门的排气管道接大气,第三端经第五阀门接三通的第一端,三通的第二端连通气缸,第三端经第六阀门连通第一四通的第三端;第一四通的第四端经第七阀门连通真空泵;气缸的活塞杆与直线电机的输出端固定连接。The saturated steam generator includes a closed container with an electric heating tube, a circulation pump, an aeration head, a water tank and a temperature sensor, wherein the bottom of the closed container is provided with a second air inlet and a water port, and the temperature sensor is installed at the bottom of the closed container , the aeration head is installed in the airtight container and communicates with the second air inlet, the water inlet is provided with the second valve, and communicates with the bottom of the water tank; The pipeline is connected to the gas source, connected to the second end of the first four-way through the first valve and the third valve in turn, and connected to the fourth end of the second four-way through the circulating pump; the first end of the second four-way is connected to the top of the closed container The second air outlet, the second end is connected to the atmosphere through the exhaust pipe with the fourth valve, the third end is connected to the first end of the tee through the fifth valve, the second end of the tee is connected to the cylinder, and the third end is through The sixth valve is connected to the third end of the first four-way; the fourth end of the first four-way is connected to the vacuum pump through the seventh valve; the piston rod of the cylinder is fixedly connected to the output end of the linear motor.

所述的一种带压下六氟化硫气体湿度传感器的校验平台,安装待检测六氟化硫湿度传感器的接口为2-4个,每个转接头与罐体的连接端均设有外螺纹,两者经密封垫螺纹连接,转接头与待检测六氟化硫湿度传感器的连接端设有内螺纹,两者密封管螺纹连接。In the verification platform with a sulfur hexafluoride gas humidity sensor under pressure, there are 2-4 interfaces for installing the sulfur hexafluoride humidity sensor to be detected, and each connection end of the adapter and the tank body is equipped with a External thread, the two are threaded through the gasket, and the connecting end of the adapter and the sulfur hexafluoride humidity sensor to be detected is provided with an internal thread, and the two are connected by the sealing pipe thread.

所述的一种带压下六氟化硫气体湿度传感器的校验平台,电加热管设置在密闭容器的下半部分。In the above-mentioned verification platform with a sulfur hexafluoride gas humidity sensor under pressure, the electric heating tube is arranged in the lower half of the airtight container.

所述的一种带压下六氟化硫气体湿度传感器的校验平台,水箱与密闭容器的高度差为0.5米。In the above-mentioned calibration platform with a sulfur hexafluoride gas humidity sensor under pressure, the height difference between the water tank and the airtight container is 0.5 meters.

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,然后配制六氟化硫气体,再将配制的六氟化硫气体与干燥气体注入罐体内,开启电机风扇使罐体内气体湿度均衡,由压力传感器、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分别读出其密度和湿度,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,并进行校验。Its working principle is: first install the sulfur hexafluoride humidity sensor to be detected on the tank through the adapter, then prepare sulfur hexafluoride gas, then inject the prepared sulfur hexafluoride gas and dry gas into the tank, and turn on the motor The fan balances the humidity of the gas in the tank. The density and humidity are read out by the pressure sensor, the mirror-type sulfur hexafluoride humidity sensor and the resistance-capacity sulfur hexafluoride humidity-density sensor, and then the temperature of the sulfur hexafluoride humidity sensor to be detected is analyzed. The output value is compared with the read humidity and density to judge the accuracy of the sulfur hexafluoride humidity sensor to be detected and to verify it.

配制六氟化硫气体分为定压下不同湿度六氟化硫气体的配制和不同压力不同湿度六氟化硫气体的配制两种:The preparation of sulfur hexafluoride gas is divided into the preparation of sulfur hexafluoride gas with different humidity under constant pressure and the preparation of sulfur hexafluoride gas with different pressure and different humidity:

1、在配制定压下不同湿度六氟化硫气体时,首先将密闭容器内注满水之后关闭第四阀门,开启电源,对密闭容器内液体加热至设定温度50℃;打开第一阀门,气源经减压过滤装置将压力降至定压并过滤后进入密闭容器,在密闭容器上部形成气腔,密闭容器内液面高于曝气头、温度传感器和电加热管,并使水温控制在设定温度;开启循环泵,使气腔内的气体不断从密闭容器内抽出,经循环泵循环后再次从密闭容器底部的第二进气口进入密闭容器内,经多次循环后即在密闭容器上部气腔中得到饱和六氟化硫水蒸气;打开第七阀门和第九阀门,用真空泵对管路、校验腔(第七阀门和第九阀门)抽真空至额定真空度;打开第五阀门、第六阀门,抽取密闭容器中一定体积的饱和六氟化硫水蒸气自第一进气口进入罐体内,而后打开第三阀门,将干燥的气体注入罐体内,达到设定压力时关闭第三阀门;启动风扇将罐体中气体混合均匀,用湿度传感器、压力仪对罐体内配制的气体进行检测,此时完成该压力下一种湿度六氟化硫气体的配制。若在该压力下配置其它湿度六氟化硫气体,再抽取密闭容器中一定体积的饱和六氟化硫水蒸气,注入到罐体中,即配制出不同湿度的饱和六氟化硫水蒸气。1. When preparing sulfur hexafluoride gas with different humidity under constant pressure, firstly fill the airtight container with water, close the fourth valve, turn on the power, heat the liquid in the airtight container to the set temperature of 50°C; open the first valve , the air source is reduced to a constant pressure by a decompression filter device and then filtered into the airtight container, an air cavity is formed on the upper part of the airtight container, the liquid level in the airtight container is higher than the aerator head, temperature sensor and electric heating tube, and the water temperature Control at the set temperature; turn on the circulating pump, so that the gas in the air cavity is continuously drawn out from the closed container, and after being circulated by the circulating pump, it enters the closed container again from the second air inlet at the bottom of the closed container. Obtain saturated sulfur hexafluoride water vapor in the upper air cavity of the airtight container; open the seventh valve and the ninth valve, and use a vacuum pump to evacuate the pipeline and the calibration chamber (the seventh valve and the ninth valve) to the rated vacuum degree; Open the fifth valve and the sixth valve, extract a certain volume of saturated sulfur hexafluoride steam from the airtight container into the tank from the first air inlet, then open the third valve, inject dry gas into the tank to reach the set value When the pressure is high, the third valve is closed; the fan is started to mix the gas in the tank evenly, and the gas prepared in the tank is detected by a humidity sensor and a pressure gauge. At this time, the preparation of a humidity sulfur hexafluoride gas under the pressure is completed. If other humidity sulfur hexafluoride gas is prepared under this pressure, then a certain volume of saturated sulfur hexafluoride water vapor is extracted from the airtight container and injected into the tank to prepare saturated sulfur hexafluoride water vapor with different humidity.

2、在配制不同压力不同湿度的六氟化硫气体时,首先将密闭容器内注满水之后关闭第四阀门,开启电源,对密闭容器内液体加热至设定温度50℃;打开第一阀门,气源经减压过滤装置将压力降低至第一压强并过滤后进入密闭容器,在密闭容器上部形成气腔,密闭容器内液面高于曝气头、温度传感器和电加热管,并使水温控制在设定温度;开启循环泵,使气腔内的气体不断从密闭容器内抽出,经循环泵循环后再次从密闭容器底部的第二进气口进入密闭容器内,经多次循环后即在密闭容器上部气腔中得到饱和六氟化硫水蒸气;打开第七阀门和第九阀门,用真空泵对管路、校验腔(第七阀门和第九阀门)抽真空至额定真空度;打开第五阀门、第六阀门,抽取密闭容器中一定体积的饱和六氟化硫水蒸气自第一进气口进入罐体内,而后打开第三阀门,将干燥的气体注入罐体内,达到设定压力时关闭第三阀门;启动风扇将罐体中气体混合均匀,用湿度传感器、压力仪对罐体内配制的气体进行检测,此时完成该压力下一种湿度六氟化硫气体的配制。若配置其它压力下不同湿度六氟化硫气体,需将气源中六氟化硫气体压力减压为设定压力,再抽取密闭容器中一定体积的饱和六氟化硫水蒸气,注入到罐体中,即配制出不同湿度的饱和六氟化硫水蒸气。2. When preparing sulfur hexafluoride gas with different pressure and different humidity, firstly fill the airtight container with water, close the fourth valve, turn on the power, heat the liquid in the airtight container to the set temperature of 50°C; open the first valve , the air source is reduced to the first pressure by the decompression filter device and then filtered into the airtight container, forming an air cavity on the upper part of the airtight container, the liquid level in the airtight container is higher than the aeration head, temperature sensor and electric heating tube, and makes the The water temperature is controlled at the set temperature; the circulation pump is turned on, so that the gas in the air cavity is continuously drawn out from the closed container, and after being circulated by the circulation pump, it enters the closed container again from the second air inlet at the bottom of the closed container. That is, saturated sulfur hexafluoride water vapor is obtained in the upper air cavity of the airtight container; open the seventh valve and the ninth valve, and use a vacuum pump to evacuate the pipeline and the calibration chamber (the seventh valve and the ninth valve) to the rated vacuum degree ; Open the fifth valve and the sixth valve, extract a certain volume of saturated sulfur hexafluoride water vapor in the airtight container and enter the tank from the first air inlet, then open the third valve, and inject the dry gas into the tank to reach the set point. When the pressure is constant, the third valve is closed; the fan is started to mix the gas in the tank evenly, and the gas prepared in the tank is detected by a humidity sensor and a pressure gauge, and the preparation of a humidity sulfur hexafluoride gas under the pressure is completed at this time. If configuring sulfur hexafluoride gas with different humidity under other pressures, it is necessary to decompress the pressure of sulfur hexafluoride gas in the gas source to the set pressure, and then extract a certain volume of saturated sulfur hexafluoride water vapor from the airtight container and inject it into the tank. In the body, saturated sulfur hexafluoride water vapor with different humidity is prepared.

本实用新型与现有技术相比,其优点在于:Compared with the prior art, the utility model has the advantages that:

1、可以配制多种指标的六氟化硫气体。同压下不同湿度六氟化硫气体配制方法为:取一定体积饱和六氟化硫水蒸气与干燥气体充分混合后得到一定湿度气体,通过多次注入饱和六氟化硫水蒸气,得到不同湿度的六氟化硫气体;不同压力不同湿度六氟化硫气体的配制方法是在定压下不同湿度六氟化硫气体配制方法基础上,通过调整水箱与密闭容器之间的压力差即可调整定压压力,配制不同压力不同湿度的六氟化硫气体。1. Sulfur hexafluoride gas with various indicators can be prepared. The preparation method of sulfur hexafluoride gas with different humidity under the same pressure is: take a certain volume of saturated sulfur hexafluoride water vapor and dry gas to fully mix to obtain a certain humidity gas, and inject saturated sulfur hexafluoride water vapor multiple times to obtain different humidity Sulfur hexafluoride gas; the preparation method of sulfur hexafluoride gas with different pressure and different humidity is based on the preparation method of sulfur hexafluoride gas with different humidity under constant pressure, and can be adjusted by adjusting the pressure difference between the water tank and the airtight container Constant pressure, prepare sulfur hexafluoride gas with different pressure and humidity.

2、通过内置于罐体内的磁性连轴搅拌器进行混合,以保证其它的均匀性,缩短测试时间,同时可保证校验腔的密封性。2. Mixing is carried out through the magnetic shaft stirrer built in the tank to ensure other uniformity, shorten the test time, and ensure the sealing of the calibration chamber.

3、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配制的不同压力不同湿度气体进行湿度压力监测,精度高、重复性好。3. Using mirror-type SF6 humidity sensor and resistive-capacity SF6 humidity-density sensor to monitor the humidity and pressure of prepared gases with different pressures and different humidity, with high precision and good repeatability.

附图说明Description of drawings

图1为本实用新型实施例的结构示意图。Fig. 1 is a schematic structural view of an embodiment of the utility model.

图中:1、气源 2、减压过滤装置 3、第一阀门 4、真空泵 5、直线电机 6、气缸 7、罐体 8、镜面式六氟化硫湿度传感器 9、阻容式六氟化硫湿度密度传感器10、电机 11、磁性联轴器 12、风扇 13、安全阀 14、压力表 15、真空计 16、第一进气口 17、第一出气口 18、转接头 19、第一四通 20、第八阀门 21、露点仪 22、电加热管 23、密闭容器 24、循环泵 25、曝气头 26、水箱 27、温度传感器 28、第二进气口 29、水口 30、第二阀门 31、第二出气口 32、第三阀门33、第二四通 34、第七阀门 35、第四阀门 36、第五阀门 37、三通 38、第六阀门 39、第九阀门In the figure: 1, air source 2, decompression filter device 3, first valve 4, vacuum pump 5, linear motor 6, cylinder 7, tank body 8, mirror surface sulfur hexafluoride humidity sensor 9, resistance-capacitance hexafluoride Sulfur humidity density sensor 10, motor 11, magnetic coupling 12, fan 13, safety valve 14, pressure gauge 15, vacuum gauge 16, first air inlet 17, first air outlet 18, adapter 19, first four Tong 20, eighth valve 21, dew point meter 22, electric heating pipe 23, airtight container 24, circulation pump 25, aeration head 26, water tank 27, temperature sensor 28, second air inlet 29, water outlet 30, second valve 31. Second air outlet 32, third valve 33, second four-way valve 34, seventh valve 35, fourth valve 36, fifth valve 37, three-way valve 38, sixth valve 39, ninth valve

具体实施方式Detailed ways

以下通过实施例和附图1对本实用新型内容作进一步详细说明。Below by embodiment and accompanying drawing 1 the utility model content is described in further detail.

传感器标准度检测装置包括罐体7、镜面式六氟化硫湿度传感器8、阻容式六氟化硫湿度密度传感器9、电机10、磁性联轴器11和设置在罐体7内的风扇12,其中罐体7上设有安全阀13、压力表14、真空计15、第一进气口16、第一出气口17和4个用于安装待检测六氟化硫湿度传感器的转接头18,每个转接头18与罐体7的连接端均设有外螺纹,两者经密封垫34螺纹连接,转接头18与待检测六氟化硫湿度传感器的连接端设有内螺纹,两者密封管螺纹连接。第一进气口16接第一四通19的第一端,镜面式六氟化硫湿度传感器8和阻容式六氟化硫湿度密度传感器9均安装在罐体7内壁上,第一出气口17经第八阀门20接露点仪21,磁性联轴器11嵌装在罐体7上,磁性联轴器11的外转子与电机10的输出轴连接,内转子与风扇12固定连接;The sensor standard degree detection device includes a tank body 7, a mirror surface sulfur hexafluoride humidity sensor 8, a resistance-capacity sulfur hexafluoride humidity density sensor 9, a motor 10, a magnetic coupling 11 and a fan 12 arranged in the tank body 7 , wherein the tank body 7 is provided with a safety valve 13, a pressure gauge 14, a vacuum gauge 15, a first air inlet 16, a first air outlet 17 and 4 adapters 18 for installing the sulfur hexafluoride humidity sensor to be detected , the connecting end of each adapter 18 and the tank body 7 is provided with an external thread, the two are threaded through a gasket 34, the connecting end of the adapter 18 and the sulfur hexafluoride humidity sensor to be detected is provided with an internal thread, both Seal pipe threaded connections. The first air inlet 16 is connected to the first end of the first four-way 19, the mirror surface type sulfur hexafluoride humidity sensor 8 and the resistance capacitance type sulfur hexafluoride humidity density sensor 9 are all installed on the inner wall of the tank body 7, the first outlet The air port 17 is connected to the dew point meter 21 through the eighth valve 20, the magnetic coupling 11 is embedded in the tank body 7, the outer rotor of the magnetic coupling 11 is connected with the output shaft of the motor 10, and the inner rotor is fixedly connected with the fan 12;

饱和蒸汽发生器包括设有电加热管22的密闭容器23、循环泵24、曝气头25、水箱26和温度传感器27,其中电加热管22设置在密闭容器23的下半部分,密闭容器23的底部设有第二进气口28和水口29,温度传感器27安装在密闭容器23内的底部,曝气头25安装在密闭容器23内、并与第二进气口28连通,水口29设有第二阀门30,并与水箱26底部连通;第二进气口28依次经设有第一阀门3和减压过滤装置2的管道连通气源1、依次经第一阀门3和第三阀门32接第一四通19的第二端,并经循环泵24接第二四通33的第四端;第二四通33的第一端连通密闭容器23顶部的第二出气口,第二端经设有第四阀门35的排气管道接大气,第三端经第五阀门36接三通37的第一端,三通37的第二端连通气缸6,第三端经第六阀门38连通第一四通19的第三端;第一四通19的第四端经第七阀门34连通真空泵4;气缸6的活塞杆与直线电机5的输出端固定连接。The saturated steam generator comprises an airtight container 23 provided with an electric heating tube 22, a circulating pump 24, an aeration head 25, a water tank 26 and a temperature sensor 27, wherein the electric heating tube 22 is arranged on the lower half of the airtight container 23, and the airtight container 23 The bottom of the bottom is provided with the second air inlet 28 and water outlet 29, and temperature sensor 27 is installed in the bottom in airtight container 23, and aerator head 25 is installed in airtight container 23, and is communicated with the second air inlet 28, and water outlet 29 is provided with There is a second valve 30, which communicates with the bottom of the water tank 26; the second air inlet 28 is connected to the gas source 1 through the pipeline provided with the first valve 3 and the decompression filter device 2, and through the first valve 3 and the third valve in turn. 32 connects the second end of the first four-way 19, and connects the fourth end of the second four-way 33 through the circulation pump 24; the first end of the second four-way 33 communicates with the second air outlet on the top of the airtight container 23, the second The end is connected to the atmosphere through the exhaust pipe provided with the fourth valve 35, the third end is connected to the first end of the tee 37 through the fifth valve 36, the second end of the tee 37 is connected to the cylinder 6, and the third end is passed through the sixth valve. 38 communicates with the third end of the first four-way 19; the fourth end of the first four-way 19 communicates with the vacuum pump 4 through the seventh valve 34; the piston rod of the cylinder 6 is fixedly connected with the output end of the linear motor 5.

Claims (4)

1. a band is depressed the verification platform of sulfur hexafluoride gas humidity sensor, comprise saturated steam generator, source of the gas (1), the pressure-reducing filter (2) with functions/drying, source of the gas (1) outlet is successively through pressure-reducing filter (2), the first valve (3) connects second air intake opening (28) of saturated steam generator, it is characterized in that: set up vacuum pump (4), cylinder (6) and standard degree pick-up unit that linear electric motors (5) drive, wherein standard degree pick-up unit comprises tank body (7), mirror surface type sulfur hexafluoride humidity sensor (8), RC sulfur hexafluoride humidity and compactibility sensor (9), motor (10), magnetic shaft coupling (11) and be arranged on the fan (12) in tank body (7), wherein tank body (7) is provided with safety valve (13), tensimeter (14), vacuum meter (15), the first air intake opening (16), the first gas outlet (17) and for the adapter (18) of sulfur hexafluoride humidity sensor to be detected is installed, the first air intake opening (16) connects the first end of the first four-way (19), mirror surface type sulfur hexafluoride humidity sensor (8) and RC sulfur hexafluoride humidity and compactibility sensor (9) are installed on tank body (7) inwall, the first gas outlet (17) connects dew point hygrometer (21) through the 8th valve (20), magnetic shaft coupling (11) is inlaid on tank body (7), the outer rotor of magnetic shaft coupling (11) is connected with the output shaft of motor (10), internal rotor is fixedly connected with fan (12),
Saturated steam generator comprises closed container (23), ebullator (24), aeration head (25), water tank (26) and the temperature sensor (27) that is provided with electric heating tube (22), wherein the bottom of closed container (23) is provided with the second air intake opening (28) and the mouth of a river (29), temperature sensor (27) is arranged on the bottom in closed container (23), aeration head (25) is arranged in closed container (23) and is communicated with the second air intake opening (28), the mouth of a river (29) is provided with the second valve (30), and is communicated with water tank (26) bottom; The second air intake opening (28) is successively through being provided with the pipeline communication source of the gas (1) of the first valve (3) and pressure-reducing filter (2), connecing the second end of the first four-way (19) through the first valve (3) and the 3rd valve (32) successively, and through ebullator (24), connects the 4th end of the second four-way (33); The first end of the second four-way (33) is communicated with second gas outlet at closed container (23) top, the second end connects atmosphere through being provided with the gas exhaust duct of the 4th valve (35), the 3rd end connects the first end of threeway (37) through the 5th valve (36), the second end of threeway (37) is communicated with cylinder (6), and the 3rd end is communicated with the 3rd end of the first four-way (19) through the 6th valve (38); The 4th end of the first four-way (19) is communicated with vacuum pump (4) through the 7th valve (34); The piston rod of cylinder (6) is fixedly connected with the output terminal of linear electric motors (5).
2. a kind of band according to claim 1 is depressed the verification platform of sulfur hexafluoride gas humidity sensor, it is characterized in that: the interface that sulfur hexafluoride humidity sensor to be detected is installed is 2-4, each adapter (18) is equipped with external thread with the link of tank body (7), both are threaded through sealing gasket (34), adapter (18) is provided with internal thread with the link of sulfur hexafluoride humidity sensor to be detected, and both are threaded by sealed tube.
3. a kind of band according to claim 1 is depressed the verification platform of sulfur hexafluoride gas humidity sensor, it is characterized in that: electric heating tube (22) is arranged on the latter half of closed container (23).
4. a kind of band according to claim 1 is depressed the verification platform of sulfur hexafluoride gas humidity sensor, it is characterized in that: water tank (26) is 0.5 meter with the difference in height of closed container (23).
CN201420388962.4U 2014-07-15 2014-07-15 A kind of band is depressed the verification platform of sulfur hexafluoride gas humidity sensor Expired - Lifetime CN204007679U (en)

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PCT/CN2014/095811 WO2016008273A1 (en) 2014-07-15 2014-12-31 Checking platform for sulfur hexafluoride gas humidity sensor under pressure

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104061955A (en) * 2014-07-15 2014-09-24 国家电网公司 Verification platform for sulfur hexafluoride gas humidity sensor under pressure
CN104950078A (en) * 2015-06-04 2015-09-30 西安交通大学 Flow wet steam humidity probe calibration device and method
WO2016008273A1 (en) * 2014-07-15 2016-01-21 国家电网公司 Checking platform for sulfur hexafluoride gas humidity sensor under pressure
CN105758990A (en) * 2014-12-17 2016-07-13 国家电网公司 A Calibration System for SF6 Gas Moisture Content Detector in GIS

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104061955A (en) * 2014-07-15 2014-09-24 国家电网公司 Verification platform for sulfur hexafluoride gas humidity sensor under pressure
WO2016008273A1 (en) * 2014-07-15 2016-01-21 国家电网公司 Checking platform for sulfur hexafluoride gas humidity sensor under pressure
CN105758990A (en) * 2014-12-17 2016-07-13 国家电网公司 A Calibration System for SF6 Gas Moisture Content Detector in GIS
CN105758990B (en) * 2014-12-17 2018-01-19 国家电网公司 A kind of calibration system for being used for SF6 gas micro water content detectors in GIS
CN104950078A (en) * 2015-06-04 2015-09-30 西安交通大学 Flow wet steam humidity probe calibration device and method

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