CN103472193B - Quick tester for transmitter laboratory - Google Patents
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Abstract
变送器实验室快速校验仪器，包括标准气体发生装置、二位三通电磁阀、第一三通管、待评价仪表校验箱和差压传感器，标准气体发生装置的出气口与二位三通电磁阀的进气口连接，二位三通电磁阀的一个出气口和待评价仪表校验箱的进气口分别与第一三通管的两个端口连接，第一三通管的另一个端口与差压传感连接。本发明能评价变送器的工作是否可靠，可广泛应用于电力系统的各类电力试验研究研所和实验室及六氟化硫泄露监测仪表的生产厂家，对保障六氟化硫电气设备的运行安全，预防六氟化硫高压开关的泄漏对环境造成的污染和破坏、维护检修人员生命安全有重要意义。
Transmitter laboratory quick calibration instrument, including standard gas generating device, two-position three-way solenoid valve, first three-way pipe, calibration box of the instrument to be evaluated and differential pressure sensor, gas outlet of standard gas generating device and two-position The air inlet of the three-way solenoid valve is connected, one air outlet of the two-position three-way solenoid valve and the air inlet of the calibration box of the instrument to be evaluated are respectively connected with the two ports of the first three-way pipe, and the air inlet of the first three-way pipe The other port is connected to differential pressure sensing. The invention can evaluate whether the work of the transmitter is reliable, and can be widely used in various electric power test research institutes and laboratories of electric power systems and manufacturers of sulfur hexafluoride leakage monitoring instruments, and is useful for ensuring the safety of sulfur hexafluoride electrical equipment. It is of great significance to prevent the pollution and damage caused by the leakage of sulfur hexafluoride high pressure switch to the environment and the life safety of maintenance personnel for safe operation.
Description
技术领域 technical field
本发明属于仪表仪器技术领域，特别涉及一种适用于六氟化硫气体监测报警变送器校验的变送器实验室快速校验仪器。 The invention belongs to the technical field of instruments and instruments, and in particular relates to a transmitter laboratory rapid calibration instrument suitable for calibration of sulfur hexafluoride gas monitoring and alarm transmitters.
背景技术 Background technique
六氟化硫气体以其优异的绝缘和灭弧性能，被广泛应用于城市电网变电站的GIS 设备上。但是，由于受制造、安装等质量的差异以及材料老化等因素影响，六氟化硫电气设备发生泄漏是个普遍的现象，而泄漏出来的 六氟化硫气体及其分解物会往室内低层空间积聚，造成局部缺氧和带毒，对进入室内的工作人员的生命安全构成了严重的危险。 Sulfur hexafluoride gas is widely used in GIS equipment in urban power grid substations due to its excellent insulation and arc extinguishing properties. However, due to the quality differences in manufacturing and installation and the aging of materials, it is a common phenomenon that sulfur hexafluoride electrical equipment leaks, and the leaked sulfur hexafluoride gas and its decomposition products will accumulate in the lower indoor space , causing local hypoxia and poisoning, which poses a serious danger to the life safety of the staff entering the room.
我国的相关标准和行为规程明确提出六氟化硫气体的泄露监测。根据《电业安全规程》、DL/T 639-1997 《六氟化硫电气设备运行、试验及检修人员安全防护细则》和GB12358-2006《作业场所环境气体检测报警仪通用技术要求》等相关规定，在室内六氟化硫电气设备工作场所，必须安装在线六氟化硫-氧气泄漏监控报警仪，实时监测环境中六氟化硫气体和氧气的含量，当环境中六氟化硫气体含量超标（六氟化硫气体浓度＞1000μL/L）或缺氧（氧浓度＜18%）时，监测报警仪能立即进行声光报警，以提醒工作人员采取安全措施，同时，系统自动启动排风设施来降低环境空气中六氟化硫气体含量，保证进入室内工作人员的人身安全。 my country's relevant standards and codes of conduct clearly propose the leakage monitoring of sulfur hexafluoride gas. According to "Electrical Industry Safety Regulations", DL/T 639-1997 "Safety Protection Rules for Sulfur Hexafluoride Electrical Equipment Operation, Test and Maintenance Personnel" and GB12358-2006 "General Technical Requirements for Environmental Gas Detection and Alarm Instruments in Workplaces" and other relevant regulations , in indoor workplaces of sulfur hexafluoride electrical equipment, online sulfur hexafluoride-oxygen leakage monitoring and alarm devices must be installed to monitor the contents of sulfur hexafluoride gas and oxygen in the environment in real time. (Sulfur hexafluoride gas concentration > 1000μL/L) or hypoxia (oxygen concentration < 18%), the monitoring and alarm device can immediately sound and light alarm to remind the staff to take safety measures, and at the same time, the system automatically activates the exhaust facilities To reduce the sulfur hexafluoride gas content in the ambient air and ensure the personal safety of the workers entering the room.
一方面，六氟化硫电气设备发生泄漏是普遍现象，另一方面，我国的相关标准和行为规程明确提出六氟化硫气体的泄露监测；那么，在电网建设中，如何对投标产品进行权威性能测试，对传感器性能进行评估，对送检传感单元完成检定呢？目前，市场上和行业内缺少对六氟化硫气体监测报警变送器实用的校验工具。 On the one hand, leakage of sulfur hexafluoride electrical equipment is a common phenomenon. On the other hand, relevant standards and codes of conduct in my country clearly propose the leakage monitoring of sulfur hexafluoride gas; then, in the construction of the power grid, how to authoritatively monitor the bidding products? Performance test, evaluate the performance of the sensor, and complete the verification of the sensing unit sent for inspection? At present, there is a lack of practical calibration tools for sulfur hexafluoride gas monitoring and alarm transmitters on the market and in the industry.
发明内容 Contents of the invention
本发明为解决上述技术问题，提供一种专门针对六氟化硫气体监测报警变送器进行快速校验的变送器实验室快速校验仪器。 In order to solve the above-mentioned technical problems, the present invention provides a transmitter laboratory rapid calibration instrument for rapid calibration of sulfur hexafluoride gas monitoring and alarm transmitters.
为实现上述目的，本发明采用以下技术方案：变送器实验室快速校验仪器，包括标准气体发生装置、二位三通电磁阀、第一三通管、待评价仪表校验箱和差压传感器，标准气体发生装置的出气口与二位三通电磁阀的进气口连接，二位三通电磁阀的一个出气口和待评价仪表校验箱的进气口分别与第一三通管的两个端口连接，第一三通管的另一个端口与差压传感连接。 In order to achieve the above object, the present invention adopts the following technical scheme: the rapid calibration instrument of the transmitter laboratory, including a standard gas generating device, a two-position three-way solenoid valve, a first three-way pipe, a calibration box for an instrument to be evaluated and a differential pressure The sensor, the gas outlet of the standard gas generating device are connected to the inlet of the two-position three-way solenoid valve, and one gas outlet of the two-position three-way solenoid valve and the inlet of the calibration box of the instrument to be evaluated are respectively connected to the first three-way pipe The two ports of the first three-way pipe are connected, and the other port of the first three-way pipe is connected with the differential pressure sensor.
还包括第一二位二通电磁阀、空气泵和第二三通管，所述待评价仪表校验箱的出气口与第一二位二通电磁阀的进气口连接，第一二位二通电磁阀的出气口与空气泵的进气口连接，空气泵的出气口与第二三通管的一个端口连接。 It also includes a first two-position two-way solenoid valve, an air pump and a second three-way pipe, the air outlet of the calibration box of the instrument to be evaluated is connected to the air inlet of the first two-position two-way solenoid valve, and the first two-position The air outlet of the two-way electromagnetic valve is connected with the air inlet of the air pump, and the air outlet of the air pump is connected with a port of the second three-way pipe.
还包括第二二位二通电磁阀，所述待评价仪表校验箱上开设有排空进气口，排空进气口与第二二位二通电磁阀的出气口连接。 It also includes a second 2-position, 2-way solenoid valve, and the calibration box of the instrument to be evaluated is provided with an exhaust air inlet, which is connected to the air outlet of the second 2-position, 2-way electromagnetic valve.
所述二位三通电磁阀另一个出气口与第二三通管的另一个端口连接。 The other air outlet of the two-position three-way solenoid valve is connected to the other port of the second three-way pipe.
采用上述技术方案，本发明采用内置式标准气体发生装置，集六氟化硫和氧气含量和环境温湿度等众多参数测量值检测和校准与一体，当变送器与监测主机连接时，还能验证监测主机的报警模块是否正常启动。总之，标准气体发生装置能评价变送器的工作是否可靠，包含测量值是否准确，反应速度是否符合要求，以及测量值的准确度是否符合预期，还能检验监测主机的报警模块是否正常。 Adopting the above technical scheme, the present invention adopts a built-in standard gas generating device, which integrates the detection and calibration of many parameter measurement values such as sulfur hexafluoride, oxygen content, and ambient temperature and humidity. When the transmitter is connected to the monitoring host, it can also Verify whether the alarm module of the monitoring host starts normally. In short, the standard gas generator can evaluate whether the transmitter is reliable, including whether the measured value is accurate, whether the response speed meets the requirements, and whether the accuracy of the measured value meets expectations. It can also check whether the alarm module of the monitoring host is normal.
标准气体发生装置用来生成评价或者说校验六氟化硫在线监测变送器的标准气体。其气源入口输入购置的标准气源，其输出口输出校验变送器用的各种浓度的标准气体。本发明内置校验气体发生装置， 用户在进行仪表校验时不用购买专门的配气设备 ，只需准备两瓶标气即可，校验方便，成本降低。 The standard gas generating device is used to generate the standard gas for evaluating or verifying the sulfur hexafluoride online monitoring transmitter. Its gas source inlet inputs the purchased standard gas source, and its output port outputs standard gases of various concentrations for calibrating the transmitter. The invention has a built-in calibration gas generating device, and the user does not need to purchase special gas distribution equipment when performing instrument calibration, and only needs to prepare two bottles of calibration gas, which is convenient for calibration and reduces costs.
标准气体发生装置的出气口通过气体管路依次串接一个二位三通电磁阀和第一三通管后连接到待评价仪表校验箱，第一三通管剩下的一个端口连接有压差传感器。压差传感器用来实时监测待评价仪表校验箱内气体压力的变化，以便对系统运行环境和安全性作出判断，并通过相应控制单元作出动作，保障系统平稳运行。当室内六氟化硫气体在线泄露监测报警的变送器需要校验评价时，将其放入待评价仪表校验箱，这些变送器将在标准气体发生装置生成的标准气体环境下完成仪表的评价，包含测量值是否准确，反应速度是否符合要求，以及测量值的准确度是否符合预期；当变送器与监测主机连接时还能检验监测主机的报警模块是否正常。 The gas outlet of the standard gas generating device is connected in series with a two-position three-way solenoid valve and the first three-way pipe through the gas pipeline, and then connected to the calibration box of the instrument to be evaluated. The remaining port of the first three-way pipe is connected to a pressure gauge. bad sensor. The differential pressure sensor is used to monitor the change of the gas pressure in the calibration box of the instrument to be evaluated in real time, so as to make a judgment on the operating environment and safety of the system, and take actions through the corresponding control unit to ensure the smooth operation of the system. When the indoor sulfur hexafluoride gas online leakage monitoring and alarm transmitters need to be verified and evaluated, they should be put into the meter calibration box to be evaluated. These transmitters will complete the meter under the standard gas environment generated by the standard gas generating device. The evaluation includes whether the measured value is accurate, whether the response speed meets the requirements, and whether the accuracy of the measured value meets expectations; when the transmitter is connected to the monitoring host, it can also check whether the alarm module of the monitoring host is normal.
在校验过程中，当待评价仪表校验箱内的标准气体需要变化浓度时，或者实验完成时，需要将待评价仪表校验箱内的气体排空。本发明也设计了快速排空气路，以满足较短的校验间歇的时间要求，即在完成一次仪表校验后，可快速置换校验气体，以备下次校验。本发明的排空气路如下：待评价仪表校验箱的排空进气口连接第二二位二通电磁阀，在待检仪表校验箱的底部有一个出气口，该出气口通过气体管路依次连接有第一二位二通电磁阀、空气泵和第二三通管。当待评价仪表校验箱需要排空时，待评价仪表校验箱内的气体在空气泵的作用下依次通过第一二位二通电磁阀、空气泵和第二三通管从出气口排出。为了减弱待评价仪表校验箱内残余气体的影响，本发明还设计了排空进气管路，在空气泵的作用下，外界空气经第二二位二通电磁阀后进入待评价仪表校验箱、然后再经由第一二位二通电磁阀、空气泵和第二三通管从其出气口排出。 During the calibration process, when the concentration of the standard gas in the calibration box of the instrument to be evaluated needs to be changed, or when the experiment is completed, the gas in the calibration box of the instrument to be evaluated needs to be emptied. The present invention also designs a quick air exhaust circuit to meet the short interval time requirement for calibration, that is, after completing an instrument calibration, the calibration gas can be quickly replaced for the next calibration. The exhaust air path of the present invention is as follows: the evacuation air inlet of the instrument calibration box to be evaluated is connected to the second two-position two-way solenoid valve, and there is an air outlet at the bottom of the instrument calibration box to be tested, and the air outlet passes through the gas pipe The road is sequentially connected with a first two-position two-way solenoid valve, an air pump and a second three-way pipe. When the calibration box of the instrument to be evaluated needs to be emptied, the gas in the calibration box of the instrument to be evaluated is discharged from the air outlet through the first two-position two-way solenoid valve, the air pump and the second three-way pipe in sequence under the action of the air pump . In order to weaken the influence of residual gas in the calibration box of the instrument to be evaluated, the present invention also designs an air intake pipeline. Under the action of the air pump, the outside air enters the calibration of the instrument to be evaluated after passing through the second two-position two-way solenoid valve. box, and then through the first two-position two-way solenoid valve, the air pump and the second three-way pipe to be discharged from its air outlet.
当标准气体发生装置生成的标准气体流量大于校验箱使用的气体流量时，多余的气体流量从二位三通电磁阀的另一通道被分流，即产生溢流，该溢流气体再经气体管路、第二三通管并入其出气口被排空。 When the standard gas flow generated by the standard gas generating device is greater than the gas flow used by the calibration box, the excess gas flow is shunted from the other channel of the two-position three-way solenoid valve, that is, overflow is generated, and the overflow gas passes through the gas The pipeline and the second three-way pipe merge into its air outlet to be emptied.
本发明采用内置式标准气体发生装置，集六氟化硫和氧气含量和环境温湿度等众多参数测量值检测和校准与一体，当变送器与监测主机连接时，还能验证监测主机的报警模块是否正常启动。总之，本发明能评价变送器的工作是否可靠，包含测量值是否准确，反应速度是否符合要求，以及测量值的准确度是否符合预期，还能检验监测主机的报警模块是否正常。 The invention adopts a built-in standard gas generating device, which integrates the detection and calibration of many parameter measurement values such as sulfur hexafluoride, oxygen content, and ambient temperature and humidity. When the transmitter is connected to the monitoring host, it can also verify the alarm of the monitoring host Whether the module starts normally. In a word, the present invention can evaluate whether the operation of the transmitter is reliable, including whether the measured value is accurate, whether the response speed meets the requirements, and whether the accuracy of the measured value meets expectations, and can also check whether the alarm module of the monitoring host is normal.
本发明能评价变送器的工作是否可靠，包含六氟化硫和氧气含量和环境温湿度等众多参数测量值是否准确，反应速度是否符合要求，以及测量值的准确度是否符合预期，当变送器与监测主机连接时，还能检验监测主机的报警模块是否正常。该装置可广泛应用于电力系统的各类电力试验研究研所和实验室及六氟化硫泄露监测仪表的生产厂家，对保障六氟化硫电气设备的运行安全，预防六氟化硫高压开关的泄漏对环境造成的污染和破坏、维护检修人员生命安全有重要意义。 The invention can evaluate whether the work of the transmitter is reliable, whether the measurement values of many parameters including sulfur hexafluoride, oxygen content and ambient temperature and humidity are accurate, whether the response speed meets the requirements, and whether the accuracy of the measurement values meets expectations. When the transmitter is connected to the monitoring host, it can also check whether the alarm module of the monitoring host is normal. The device can be widely used in various electric power test research institutes and laboratories of power systems and manufacturers of sulfur hexafluoride leakage monitoring instruments. The leakage is of great significance to the pollution and damage caused by the environment and the life safety of maintenance personnel.
此外，本发明内置标准气体发生装置，用户在进行仪表校验时不用购买专门的配气设备 ，只需准备两瓶标气即可，具有校验方便、成本降低的特点。本发明设计了快速排空气路，具有较短的校验间歇时间，即要求在完成一次仪表校验后，可快速置换校验气体，以备下次校验；具有校验速度快、工作效率高的特点。 In addition, the present invention has a built-in standard gas generating device, so users do not need to purchase special gas distribution equipment when performing instrument calibration, and only need to prepare two bottles of standard gas, which has the characteristics of convenient calibration and low cost. The present invention designs a quick exhaust air circuit, which has a shorter interval of calibration, that is, it is required to quickly replace the calibration gas after one instrument calibration is completed, so as to prepare for the next calibration; it has fast calibration speed and high work efficiency. high feature.
附图说明 Description of drawings
图1是本发明的结构示意图。 Fig. 1 is a schematic structural view of the present invention.
具体实施方式 Detailed ways
如图1所示，本发明的变送器实验室快速校验仪器，包括标准气体发生装置1、二位三通电磁阀2、第一三通管3、待评价仪表校验箱4和差压传感器5，标准气体发生装置1的出气口与二位三通电磁阀2的进气口连接，二位三通电磁阀2的一个出气口和待评价仪表校验箱4的进气口分别与第一三通管3的两个端口连接，第一三通管3的另一个端口与差压传感连接。 As shown in Figure 1, the transmitter laboratory rapid calibration instrument of the present invention includes a standard gas generating device 1, a two-position three-way solenoid valve 2, a first three-way pipe 3, an instrument calibration box 4 to be evaluated and a differential Pressure sensor 5, the gas outlet of standard gas generating device 1 is connected to the inlet of two-position three-way solenoid valve 2, and one gas outlet of two-position three-way solenoid valve 2 is connected to the inlet of calibration box 4 of the instrument to be evaluated. It is connected with two ports of the first three-way pipe 3, and the other port of the first three-way pipe 3 is connected with a differential pressure sensor.
本发明还包括第一二位二通电磁阀6、空气泵7和第二三通管8，所述待评价仪表校验箱4的出气口与第一二位二通电磁阀6的进气口连接，第一二位二通电磁阀6的出气口与空气泵7的进气口连接，空气泵7的出气口与第二三通管8的一个端口连接。 The present invention also includes a first two-position two-way solenoid valve 6, an air pump 7 and a second three-way pipe 8. The air outlet of the first two-position two-way solenoid valve 6 is connected with the air inlet of the air pump 7, and the air outlet of the air pump 7 is connected with a port of the second three-way pipe 8.
本发明还包括第二二位二通电磁阀9，所述待评价仪表校验箱4上开设有排空进气口，排空进气口与第二二位二通电磁阀9的出气口连接。 The present invention also includes a second two-position two-way solenoid valve 9, and the calibration box 4 of the instrument to be evaluated is provided with an emptying air inlet, which is connected with the air outlet of the second two-position two-way electromagnetic valve 9 connect.
二位三通电磁阀2另一个出气口与第二三通管8的另一个端口连接。 The other air outlet of the two-position three-way solenoid valve 2 is connected with the other port of the second three-way pipe 8 .
本发明当中的标准气体发生装置1为现有成熟技术，具体构造不再赘述。 The standard gas generating device 1 among the present invention is an existing mature technology, and the specific structure will not be repeated.
标准气体发生装置1的出气口通过气体管路依次串接一个二位三通电磁阀2和第一三通管3后连接到待评价仪表校验箱4，第一三通管3剩下的一个端口连接有压差传感器。压差传感器用来实时监测待评价仪表校验箱4内气体压力的变化，以便对系统运行环境和安全性作出判断，并通过相应控制单元作出动作，保障系统平稳运行。当室内六氟化硫气体在线泄露监测报警的变送器需要校验评价时，将其放入待评价仪表校验箱4，这些变送器将在标准气体发生装置1生成的标准气体环境下完成仪表的评价，包含测量值是否准确，反应速度是否符合要求，以及测量值的准确度是否符合预期；当变送器与监测主机连接时还能检验监测主机的报警模块是否正常。 The gas outlet of the standard gas generating device 1 is connected in series with a two-position three-way solenoid valve 2 and the first three-way pipe 3 through the gas pipeline, and then connected to the calibration box 4 of the instrument to be evaluated, and the rest of the first three-way pipe 3 One port is connected to a differential pressure sensor. The differential pressure sensor is used to monitor the change of the gas pressure in the calibration box 4 of the instrument to be evaluated in real time, so as to make a judgment on the operating environment and safety of the system, and take actions through the corresponding control unit to ensure the smooth operation of the system. When the indoor sulfur hexafluoride gas online leakage monitoring and alarming transmitters need to be verified and evaluated, they are placed in the instrument calibration box 4 to be evaluated, and these transmitters will be in the standard gas environment generated by the standard gas generating device 1 Complete the evaluation of the instrument, including whether the measured value is accurate, whether the response speed meets the requirements, and whether the accuracy of the measured value meets expectations; when the transmitter is connected to the monitoring host, it can also check whether the alarm module of the monitoring host is normal.
在校验过程中，当待评价仪表校验箱4内的标准气体需要变化浓度时，或者实验完成时，需要将待评价仪表校验箱4内的气体排空。本发明也设计了快速排空气路，以满足较短的校验间歇的时间要求，即在完成一次仪表校验后，可快速置换校验气体，以备下次校验。本发明的排空气路如下：待评价仪表校验箱4的排空进气口连接第二二位二通电磁阀9，在待检仪表校验箱的底部有一个出气口，该出气口通过气体管路依次连接有第一二位二通电磁阀6、空气泵7和第二三通管8。当待评价仪表校验箱4需要排空时，待评价仪表校验箱4内的气体在空气泵7的作用下依次通过第一二位二通电磁阀6、空气泵7和第二三通管8从出气口排出。为了减弱待评价仪表校验箱4内残余气体的影响，本发明还设计了排空进气管路，在空气泵7的作用下，外界空气经第二二位二通电磁阀9后进入待评价仪表校验箱4、然后再经由第一二位二通电磁阀6、空气泵7和第二三通管8从其出气口排出。 During the verification process, when the concentration of the standard gas in the calibration box 4 of the instrument to be evaluated needs to be changed, or when the experiment is completed, the gas in the calibration box 4 of the instrument to be evaluated needs to be emptied. The present invention also designs a quick air exhaust circuit to meet the short interval time requirement for calibration, that is, after completing an instrument calibration, the calibration gas can be quickly replaced for the next calibration. The exhaust air path of the present invention is as follows: the evacuation air inlet of the instrument calibration box 4 to be evaluated is connected to the second two-position two-way solenoid valve 9, and there is an air outlet at the bottom of the instrument calibration box to be evaluated, and the air outlet passes through The gas pipeline is sequentially connected with a first two-position two-way solenoid valve 6 , an air pump 7 and a second three-way pipe 8 . When the calibration box 4 of the instrument to be evaluated needs to be emptied, the gas in the calibration box 4 of the instrument to be evaluated passes through the first two-position two-way solenoid valve 6, the air pump 7 and the second three-way in sequence under the action of the air pump 7 Tube 8 exits the air outlet. In order to weaken the influence of the residual gas in the calibration box 4 of the instrument to be evaluated, the present invention also designs an air intake pipeline, and under the action of the air pump 7, the outside air enters to be evaluated after passing through the second two-position two-way solenoid valve 9 The meter calibration box 4 is then discharged from its air outlet through the first two-position two-way solenoid valve 6, the air pump 7 and the second three-way pipe 8.
当标准气体发生装置1生成的标准气体流量大于校验箱使用的气体流量时，多余的气体流量从二位三通电磁阀2的另一通道被分流，即产生溢流，该溢流气体再经气体管路、第二三通管8并入其出气口被排空。 When the standard gas flow generated by the standard gas generating device 1 is greater than the gas flow used by the calibration box, the excess gas flow is shunted from the other channel of the two-position three-way solenoid valve 2, that is, overflow is generated, and the overflow gas is then Through the gas pipeline, the second three-way pipe 8 is merged into its gas outlet to be emptied.
本发明采用内置式标准气体发生装置1，集六氟化硫和氧气含量和环境温湿度等众多参数测量值检测和校准与一体，当变送器与监测主机连接时，还能验证监测主机的报警模块是否正常启动。总之，标准气体发生装置1能评价变送器的工作是否可靠，包含测量值是否准确，反应速度是否符合要求，以及测量值的准确度是否符合预期，还能检验监测主机的报警模块是否正常。 The present invention adopts a built-in standard gas generating device 1, which integrates the detection and calibration of many parameter measurement values such as sulfur hexafluoride, oxygen content, and ambient temperature and humidity. When the transmitter is connected to the monitoring host, it can also verify the monitoring host. Whether the alarm module starts normally. In short, the standard gas generating device 1 can evaluate whether the transmitter is reliable, including whether the measured value is accurate, whether the response speed meets the requirements, and whether the accuracy of the measured value meets expectations, and can also check whether the alarm module of the monitoring host is normal.
标准气体发生装置1用来生成评价或者说校验六氟化硫在线监测变送器的标准气体。其气源入口输入购置的标准气源，其输出口输出校验变送器用的各种浓度的标准气体。本发明内置校验气体发生装置， 用户在进行仪表校验时不用购买专门的配气设备 ，只需准备两瓶标气即可，校验方便，成本降低。 The standard gas generating device 1 is used to generate standard gas for evaluating or calibrating the sulfur hexafluoride online monitoring transmitter. Its gas source inlet inputs the purchased standard gas source, and its output port outputs standard gases of various concentrations for calibrating the transmitter. The invention has a built-in calibration gas generating device, and the user does not need to purchase special gas distribution equipment when performing instrument calibration, and only needs to prepare two bottles of calibration gas, which is convenient for calibration and reduces costs.
以上实施例仅用以说明而非限制本发明的技术方案，尽管参照上述实施例对本发明进行了详细说明，本领域的普通技术人员应当理解：依然可以对本发明进行修改或者等同替换，而不脱离本发明的精神和范围的任何修改或局部替换，其均应涵盖在本发明的权利要求范围当中。 The above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that the present invention can still be modified or equivalently replaced without departing from it. Any modifications or partial replacements within the spirit and scope of the present invention shall fall within the scope of the claims of the present invention.
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| CN105334299A (en) * | 2015-12-15 | 2016-02-17 | 北京雪迪龙科技股份有限公司 | Standard gas generation system and method for dynamically monitoring standard gas |
| CN106092440B (en) * | 2016-08-09 | 2019-03-05 | 江苏方天电力技术有限公司 | A detection device for differential pressure transmitter |
| CN108362827A (en) * | 2018-01-09 | 2018-08-03 | 国网山东省电力公司滨州供电公司 | A kind of detection device for testing substation SF6 working sensor states |
| CN109141782A (en) * | 2018-09-18 | 2019-01-04 | 昆明北方红外技术股份有限公司 | The airtight test of ultralow pressure and gas substitution detector |
| CN110865152A (en) * | 2019-11-28 | 2020-03-06 | 天地（常州）自动化股份有限公司 | Gas sensor aging device for coal mine and detection method |
| CN113933467B (en) * | 2021-10-26 | 2024-02-13 | 国网浙江省电力有限公司电力科学研究院 | Gas pressure monitoring device for sulfur hexafluoride decomposition products based on gas in-situ detection |
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