CN204389458U - A kind of gas chromatographicanalyzer for analyzing sulfur hexafluoride decomposition product - Google Patents
A kind of gas chromatographicanalyzer for analyzing sulfur hexafluoride decomposition product Download PDFInfo
- Publication number
- CN204389458U CN204389458U CN201420789251.8U CN201420789251U CN204389458U CN 204389458 U CN204389458 U CN 204389458U CN 201420789251 U CN201420789251 U CN 201420789251U CN 204389458 U CN204389458 U CN 204389458U
- Authority
- CN
- China
- Prior art keywords
- gas
- port
- way
- sulfur hexafluoride
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910018503 SF6 Inorganic materials 0.000 title claims abstract description 30
- 238000000354 decomposition reaction Methods 0.000 title claims abstract description 30
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 93
- 238000005070 sampling Methods 0.000 claims abstract description 82
- 238000001514 detection method Methods 0.000 claims abstract description 32
- 239000012159 carrier gas Substances 0.000 claims abstract description 30
- 239000001307 helium Substances 0.000 claims description 13
- 229910052734 helium Inorganic materials 0.000 claims description 13
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 7
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004817 gas chromatography Methods 0.000 description 3
- 238000002848 electrochemical method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
本实用新型公开了一种用于分析六氟化硫分解产物的气相色谱分析仪，包括进样装置、色谱柱和检测装置，所述进样装置包括定量管和六通进样阀，所述六通进样阀的通口5为进样口，定量管的进样端与六通进样阀的通口6连通，其出样端与六通进样阀的通口3连接，所述六通进样阀的通口1为载气进口，用于通入载气气源连接，所述六通进样阀的通口2与色谱柱的进样端连接，所述色谱柱通过六通切换阀与检测装置连接。本实用新型结构简单、紧凑、可靠性好，操作人性化、灵敏度高、自动化程度高、可在线连续使用。
The utility model discloses a gas chromatographic analyzer for analyzing decomposition products of sulfur hexafluoride, which comprises a sampling device, a chromatographic column and a detection device. The sampling device includes a quantitative tube and a six-way sampling valve. The port 5 of the six-way sampling valve is the sample inlet, the sampling end of the quantitative tube is connected with the port 6 of the six-way sampling valve, and its sample outlet is connected with the port 3 of the six-way sampling valve. The port 1 of the six-way sampling valve is the carrier gas inlet, which is used to connect the carrier gas source. The port 2 of the six-way sampling valve is connected to the sampling end of the chromatographic column. Connect with the detection device through the switching valve. The utility model has the advantages of simple structure, compactness, good reliability, humanized operation, high sensitivity, high degree of automation, and can be continuously used on-line.
Description
技术领域 technical field
本实用新型涉及气体检测设备，特指一种用于分析六氟化硫分解产物的气相色谱分析仪。 The utility model relates to gas detection equipment, in particular to a gas chromatography analyzer for analyzing decomposition products of sulfur hexafluoride.
背景技术 Background technique
随着电力工业的迅速发展，SF6电气设备数量不断增多。对SF6气体的质量监督日益重要。纯净的SF6气体是一种理想的绝缘介质。但是，在电弧、火花放电、高温等因素作用下，SF6气体易电离分解，其分解产物与电气设备中的水分、氧气发生反应，主要生成SO2、H2S、HF等酸性物质，以及CF4、CS2、SO2F2等毒性和腐蚀性极强的物质。我们可以通过检测SF6气体的这些分解物质来分析SF6气体质量，进而判断电气设备的潜在故障类型，避免故障的扩大化，进而避免停电事故的发生。 With the rapid development of the power industry, the number of SF 6 electrical equipment is increasing. The quality supervision of SF 6 gas is becoming more and more important. Pure SF 6 gas is an ideal insulating medium. However, under the action of electric arc, spark discharge, high temperature and other factors, SF 6 gas is easy to ionize and decompose, and its decomposition products react with moisture and oxygen in electrical equipment, mainly producing acidic substances such as SO 2 , H 2 S and HF, and CF 4 , CS 2 , SO 2 F 2 and other highly toxic and corrosive substances. We can analyze the quality of SF 6 gas by detecting these decomposition substances of SF 6 gas, and then judge the potential fault type of electrical equipment, avoid the expansion of faults, and then avoid the occurrence of power outages.
在SF6中分解产物中，典型的特征组分为SO2、SO2F2、CO、CF4、H2S和CS2等几种，且这几种成分的含量一般位于ppm级别。目前对SF6气体组分检测的主要方法主要有以下：一是使用取样瓶现场取气返回实验室再进行检测分析，但在运输过程中SF6气体分解产物中的不稳定组分会发生分解反应，同时取样设备本身及取样瓶表面残存的水分会加速SF6分解产物的分解，导致该方法的定量精确性难以保证；二是采用便携式仪器对带电设备进行现场采样，带电检测设备的现场采样可以缓解现场取气返回实验室过程中造成的SF6气体组分分解，但目前采用的便携式仪器主要是采用电化学法，各组分间会存在相互干扰，定性的准确性难以保证，导致电化学传感器检测技术很难达到组分的准确区分以及定量。而气相色谱检测技术是较为精准的检测方法，无论是定性的准确度还是定量的精准度方面，能实现对SF6分解气体中特征组分的准确定量和定性。但目前，大多数气相色谱检测器均为实验室用检测器、且其体积大、结构、操作复杂、对部门气体组分（如CS2、H2S等）的检测精度较低，且仪器均采用压力进样方式，由于进样管路中气体死体积的存在导致气体的检测代表性不足。因此，为适应SF6气体成分的检测需要，急需研发一套适用于GIS设备中六氟化硫气体组分检测用的气相色谱分析仪，以便有效检测电气设备的运行状态，为设备的检修和状态分析提供有力科学依据。 Among the decomposition products in SF 6 , the typical characteristic components are SO 2 , SO 2 F 2 , CO, CF 4 , H 2 S and CS 2 , and the contents of these components are generally at the ppm level. At present, the main methods for detection of SF 6 gas components are as follows: First, use the sampling bottle to take gas on site and return it to the laboratory for detection and analysis, but the unstable components in the decomposition products of SF 6 gas will undergo decomposition reactions during transportation At the same time, the residual moisture on the sampling equipment itself and the surface of the sampling bottle will accelerate the decomposition of SF 6 decomposition products, which makes it difficult to ensure the quantitative accuracy of the method; the second is to use portable instruments to carry out on-site sampling of live equipment, and the on-site sampling of live detection equipment can be To alleviate the decomposition of SF 6 gas components caused by on-site gas collection and returning to the laboratory, but the portable instruments currently used mainly use electrochemical methods, and there will be mutual interference between components, and the qualitative accuracy is difficult to guarantee, resulting in electrochemical methods. It is difficult for sensor detection technology to achieve accurate distinction and quantification of components. The gas chromatography detection technology is a more accurate detection method, whether in terms of qualitative accuracy or quantitative accuracy, it can accurately quantify and characterize the characteristic components in the SF 6 decomposition gas. But at present, most gas chromatographic detectors are laboratory detectors with large volume, complex structure and operation, low detection accuracy for some gas components (such as CS 2 , H 2 S, etc.), and the instrument All adopt the pressure sampling method, and the detection of gas is underrepresented due to the existence of gas dead volume in the sampling pipeline. Therefore, in order to meet the detection needs of SF 6 gas components, it is urgent to develop a set of gas chromatographic analyzers suitable for the detection of sulfur hexafluoride gas components in GIS equipment, so as to effectively detect the operating status of electrical equipment and provide equipment for maintenance and maintenance. State analysis provides a strong scientific basis.
实用新型内容 Utility model content
本实用新型目的在于提供一种用于分析六氟化硫分解产物的气相色谱分析仪。该气相色谱分析仪可以准确对六氟化硫气体中的CS2、空气、H2S、CO、SO2、SO2F2和CF4共6种典型气体组分进行定性定量检测。 The purpose of the utility model is to provide a gas chromatography analyzer for analyzing the decomposition products of sulfur hexafluoride. The gas chromatograph can accurately detect six typical gas components, namely CS 2 , air, H 2 S, CO, SO 2 , SO 2 F 2 and CF 4 in sulfur hexafluoride gas.
本实用新型的目的是通过以下技术方案来实现：一种用于分析六氟化硫分解产物的气相色谱分析仪，包括进样装置、色谱柱和检测装置，所述进样装置包括定量管和六通进样阀，所述六通进样阀的通口5为进样口，定量管的进样端与六通进样阀的通口6连通，其出样端与六通进样阀的通口3连接，所述六通进样阀的通口1为载气进口，用于通入载气气源连接，所述六通进样阀的通口2与色谱柱的进样端连接，所述色谱柱通过六通切换阀与检测装置连接。 The purpose of this utility model is achieved through the following technical proposals: a gas chromatographic analyzer for analyzing sulfur hexafluoride decomposition products, including a sampling device, a chromatographic column and a detection device, and the sampling device includes a quantitative tube and a Six-way sampling valve, the port 5 of the six-way sampling valve is a sample inlet, the sampling end of the quantitative tube is connected with the port 6 of the six-way sampling valve, and its sample outlet is connected to the six-way sampling valve The port 3 of the six-way sampling valve is connected to the carrier gas inlet, which is used to connect the carrier gas source. The port 2 of the six-way sampling valve is connected to the injection port of the chromatographic column. The chromatographic column is connected with the detection device through a six-way switching valve.
进一步地，所述进样装置还包括电子流量控制阀，该电子流量控制阀设置在六通进样阀的通口6与定量管进气端之间的管路上，采用气体电子流量控制技术，大大提升了进样气体的代表性。 Further, the sampling device also includes an electronic flow control valve, which is arranged on the pipeline between the port 6 of the six-way sampling valve and the inlet end of the quantitative tube, and adopts gas electronic flow control technology, The representativeness of the sample gas is greatly improved.
本实用新型还包括载气供给装置，该载气供给装置包括载气气源和气体纯化器，所述载气气源的出口端连接气体纯化器的进口端，所述气体纯化器的出口端则与六通进样阀的通口1连接。 The utility model also includes a carrier gas supply device, the carrier gas supply device includes a carrier gas source and a gas purifier, the outlet end of the carrier gas source is connected to the inlet end of the gas purifier, and the outlet end of the gas purifier Then connect to port 1 of the six-port injection valve.
本实用新型所述色谱柱放置在程序升温箱内。该色谱柱为填充色谱柱，具体地为Porpork Q填充柱，可有效分离六氟化硫气体中的多种气体组分，且大大简化了仪器的结构及操作过程。 The chromatographic column described in the utility model is placed in a programmed heating box. The chromatographic column is a packed chromatographic column, specifically a Porpork Q packed column, which can effectively separate various gas components in sulfur hexafluoride gas, and greatly simplifies the structure and operation process of the instrument.
本实用新型所述检测装置包括氦离子脉冲检测器。作为本实用新型的一个实施例，所述氦离子脉冲检测器为脉冲放电氦离子化检测器，用以提高对被检气体的检测灵敏度；经实验证明只要采样0.5ml标样气，就能检测到ppm级别的气样。 The detection device of the utility model includes a helium ion pulse detector. As an embodiment of the present invention, the helium ion pulse detector is a pulse discharge helium ionization detector, which is used to improve the detection sensitivity of the gas to be detected; it has been proved by experiments that as long as 0.5ml of standard sample gas is sampled, it can detect Gas samples down to the ppm level.
本实用新型所述的六通进样阀为具有保护装置及自动在线控制的VICI 进口气体六通进样阀。 The six-way sampling valve described in the utility model is a VICI inlet gas six-way sampling valve with protection device and automatic online control.
本实用新型还包括控制装置，该控制装置为微型计算机或带有液晶显示器的仪器面板，可以对色谱仪中各装置进行网络远程管理，有利于仪器和数据的远程监测管理。 The utility model also includes a control device, which is a microcomputer or an instrument panel with a liquid crystal display, which can perform network remote management on each device in the chromatograph, which is beneficial to remote monitoring and management of instruments and data.
本实用新型具有以下优点：The utility model has the following advantages:
(1) 本实用新型提供的六氟化硫分解产物的气相色谱分析仪具有结构简单、紧凑、可靠性好，操作人性化、灵敏度高、自动化程度高、可在线连续使用等优点。 (1) The gas chromatographic analyzer of sulfur hexafluoride decomposition products provided by the utility model has the advantages of simple structure, compactness, good reliability, humanized operation, high sensitivity, high degree of automation, and continuous use online.
(2) 本实用新型对电气设备中六氟化硫气体的多种分解产物的定性定量分析准确，灵敏度高、检测限低，CS2、SO2、SO2F2、H2S、CO和CF4的气体检测下限均小于0.05 ppm。 (2) The utility model has the advantages of accurate qualitative and quantitative analysis of various decomposition products of sulfur hexafluoride gas in electrical equipment, high sensitivity, low detection limit, CS 2 , SO 2 , SO 2 F 2 , H 2 S, CO and The gas detection limit of CF 4 is less than 0.05 ppm.
(3) 本实用新型所述的六通进样阀为具有保护装置及自动在线控制的VICI 进口气体六通进样阀，而且进样装置中设电子流量控制阀，使得本实用新型的进样方式主要采用气体电子流量控制进样技术，有利于解决气体进样管路中死体积问题导致的采样代表性问题，使仪器的采样代表性方面具有很强的优势。 (3) The six-way sampling valve described in the utility model is a VICI inlet gas six-way sampling valve with protection device and automatic online control, and an electronic flow control valve is set in the sampling device, so that the sampling device of the present utility model The method mainly adopts gas electronic flow control sampling technology, which is beneficial to solve the sampling representativeness problem caused by the dead volume problem in the gas sampling pipeline, so that the instrument has a strong advantage in sampling representativeness.
附图说明 Description of drawings
下面结合附图对本实用新型的分析六氟化硫分解产物的气相色谱分析仪做出进一步说明： Below in conjunction with accompanying drawing, the gas chromatographic analyzer of the analysis sulfur hexafluoride decomposition product of the present utility model is further explained:
图1 本实用新型结构原理示意图。 Figure 1 is a schematic diagram of the structure and principle of the utility model.
图2 气相色谱气体进样状态示意图。 Fig. 2 Schematic diagram of gas chromatographic gas sampling state.
图3 气相色谱气体切换状态示意图。 Fig. 3 Schematic diagram of gas chromatographic gas switching state.
11：载气气源；12：气体纯化器；13：六通进样阀；14：色谱柱；15：六通切换阀； 11: carrier gas source; 12: gas purifier; 13: six-way sampling valve; 14: chromatographic column; 15: six-way switching valve;
16：检测器；17：定量管；18：样品气。 16: detector; 17: quantitative tube; 18: sample gas.
具体实施方式 Detailed ways
如图1~3所示的用于分析六氟化硫分解产物的气相色谱分析仪为本实用新型的一个实施例，包括控制装置(图中未示出)、进样装置、载气供给装置、色谱柱14和检测装置16。进样装置由定量管17、电子流量控制阀(图中未示出)和六通进样阀13构成。六通进样阀13的通口5为进样口，定量管17的进样端与六通进样阀13的通口6连通，其出样端与六通进样阀13的通口3连接。电子流量控制阀设置在六通进样阀13的通口6与定量管17进气端之间的管路上，采用气体电子流量控制技术，大大提升了进样气体的代表性。 The gas chromatographic analyzer for analyzing the decomposition products of sulfur hexafluoride as shown in Figures 1 to 3 is an embodiment of the present invention, including a control device (not shown in the figure), a sampling device, and a carrier gas supply device , chromatographic column 14 and detection device 16. The sampling device is composed of a quantitative tube 17 , an electronic flow control valve (not shown in the figure) and a six-way sampling valve 13 . The port 5 of the six-way sampling valve 13 is the sampling port, the sampling end of the quantitative tube 17 is connected with the port 6 of the six-way sampling valve 13, and the sample outlet is connected with the port 3 of the six-way sampling valve 13. connect. The electronic flow control valve is set on the pipeline between the port 6 of the six-way sampling valve 13 and the inlet end of the quantitative tube 17, and adopts the gas electronic flow control technology, which greatly improves the representativeness of the sampling gas.
六通进样阀13的通口1为载气进口，与载气供给装置的出气端连接，用于通入载气连接。六通进样阀13的通口2与色谱柱14的进样端连接。色谱柱14通过六通切换阀15与检测装置16连接。其中，六通切换阀15的通口1为进样口，与色谱柱14的出样端连接。六通切换阀15的通口2为出样口与检测装置16的进样口连接。 The port 1 of the six-way sampling valve 13 is the carrier gas inlet, which is connected with the gas outlet end of the carrier gas supply device, and is used for connecting the carrier gas. The port 2 of the six-way sampling valve 13 is connected with the sampling end of the chromatographic column 14 . The chromatographic column 14 is connected with a detection device 16 through a six-way switching valve 15 . Wherein, the port 1 of the six-way switching valve 15 is a sample inlet, which is connected with the sample outlet of the chromatographic column 14 . The port 2 of the six-way switching valve 15 is a sample outlet connected to the sample inlet of the detection device 16 .
载气供给装置由载气气源11和气体纯化器12构成。载气气源11的出口端连接气体纯化器12。气体纯化器12的出口端则与六通进样阀13的通口1连接，以提供检测时所需的载气。 The carrier gas supply device is composed of a carrier gas source 11 and a gas purifier 12 . The outlet end of the carrier gas source 11 is connected to a gas purifier 12 . The outlet port of the gas purifier 12 is connected to the port 1 of the six-port sampling valve 13 to provide the carrier gas required for detection.
在本实施例中，色谱柱14放置在程序升温箱(图中未示出)内。色谱柱14为填充色谱柱，具体地为Porpork Q填充柱，可有效分离六氟化硫气体中的多种气体组分，且大大简化了仪器的结构及操作过程。 In this embodiment, the chromatographic column 14 is placed in a temperature-programmed oven (not shown in the figure). The chromatographic column 14 is a packed chromatographic column, specifically a Porpork Q packed column, which can effectively separate various gas components in sulfur hexafluoride gas, and greatly simplifies the structure and operation process of the instrument.
检测装置16为脉冲放电氦离子化检测器，用以提高对被检气体的检测灵敏度；经实验证明只要采样0.5ml标样气，就能检测到ppm级别的气样。 The detection device 16 is a pulse discharge helium ionization detector, which is used to improve the detection sensitivity of the gas to be detected; experiments have proved that as long as 0.5ml of standard sample gas is sampled, the gas sample at the ppm level can be detected.
六通进样阀13为具有保护装置及自动在线控制的VICI 进口气体六通进样阀。 The six-way sampling valve 13 is a VICI inlet gas six-way sampling valve with protection device and automatic online control.
控制装置为微型计算机或带有液晶显示器的仪器面板，可以对各装置进行网络远程管理，有利于仪器和数据的远程监测管理。 The control device is a microcomputer or an instrument panel with a liquid crystal display, which can carry out network remote management of each device, which is beneficial to the remote monitoring and management of instruments and data.
采用本实施例进行六氟化硫分解产物的过程为： The process of adopting the present embodiment to carry out the decomposition product of sulfur hexafluoride is:
1.分析流程 1. Analysis process
(1) 仪器等待分析前，连通六通进样阀13的通口1和通口2，先通入载气氦气，并经由气体纯化器12进入六通进样阀13，让氦气进入色谱柱14里，以保护色谱柱的清洁。载气氦气通过气体纯化器12，使载气纯度提高2个数量级，一般可达99.99999%。 (1) Before the instrument waits for analysis, connect the port 1 and port 2 of the six-port sampling valve 13, first pass the carrier gas helium, and enter the six-port sampling valve 13 through the gas purifier 12, allowing the helium to enter Chromatographic column 14, to protect the cleanliness of the chromatographic column. The carrier gas helium passes through the gas purifier 12 to increase the purity of the carrier gas by 2 orders of magnitude, generally up to 99.99999%.
(2) 在仪器准备阶段（图1），样品气18经通口5进入六通进样阀13后经电子流量控制技术后进入定量管17，再由六通进样阀13的通口3和通口4排空，定量管控制的气体量＜ 0.5 mL，由于进样气体对定量管17中气体的连续置换，使定量管17内的气体具有良好的代表性。 (2) In the preparation stage of the instrument (Figure 1), the sample gas 18 enters the six-way sampling valve 13 through the port 5, and then enters the quantitative tube 17 through the electronic flow control technology, and then passes through the port 3 of the six-way sampling valve 13. And the port 4 is emptied, the gas volume controlled by the quantitative tube is less than 0.5 mL, and the gas in the quantitative tube 17 has a good representation due to the continuous replacement of the gas in the quantitative tube 17 by the sample gas.
(3) 待气相色谱仪基线稳定后，仪器进入进样状态，如图2所示，六通进样阀13的通口1和通口6连通，通口3和通口2连通，六通切换阀15的通口1和通口2连通。载气氦气经气体纯化器12后进入六通进样阀13，携带定量管17中的样品气进入色谱柱14，由色谱柱14分离后经六通切换阀15进入检测器16，进行检测。此时，六通进样阀13的通口5和通口4连通，样品气18排空。 (3) After the baseline of the gas chromatograph is stable, the instrument enters the sampling state, as shown in Figure 2, the port 1 of the six-port sampling valve 13 is connected to the port 6, the port 3 is connected to the port 2, and the six-port The port 1 and the port 2 of the switching valve 15 communicate. The carrier gas helium enters the six-way sampling valve 13 after passing through the gas purifier 12, carries the sample gas in the quantitative tube 17 into the chromatographic column 14, is separated by the chromatographic column 14, and enters the detector 16 through the six-way switching valve 15 for detection . At this time, the port 5 of the six-way sampling valve 13 communicates with the port 4, and the sample gas 18 is emptied.
(4) 分析实际样品时，由于SF6背景气会产生较大的峰值，会对其他分解产物的检测产生干扰，因此为控制SF6气体不进入检测器16，在分析时间达到SF6气体的保留时间时，仪器进入切换状态，如图3所示，六通进样阀13的通口1和通口2连通，只有氦气进入色谱柱14，而六通进样阀13的通口5和通口6连通以及通口3和通口4连通，SF6气体依次进入六通进样阀13和定量管17后从六通进样阀13的通口4排出。六通切换阀15的通口1和通口6连通，载气氦气经六通进样阀13后进入色谱柱14，携带的待检测气体经六通切换阀15排空，待所有SF6气体排空后，系统重新切换到分析检测状态，如图1所示，直至六氟化硫气体中的CS2、空气、H2S、CO、SO2、SO2F2和CF4共6种典型气体组分检测完成。 (4) When analyzing the actual sample, because the SF6 background gas will produce larger peaks, it will interfere with the detection of other decomposition products, so for controlling the SF6 gas does not enter the detector 16, when the analysis time reaches the retention time of the SF6 gas , the instrument enters the switching state, as shown in Figure 3, port 1 and port 2 of the six-way sampling valve 13 are connected, and only helium enters the chromatographic column 14, while port 5 and port 2 of the six-way sampling valve 13 6 is connected and port 3 is connected with port 4, SF6 gas enters the six-way sampling valve 13 and quantitative tube 17 in turn, and then is discharged from port 4 of the six-way sampling valve 13. Port 1 of the six-way switching valve 15 is connected to port 6, and the carrier gas helium enters the chromatographic column 14 after passing through the six-way sampling valve 13, and the carried gas to be detected is evacuated through the six-way switching valve 15, and all the SF6 gas After emptying, the system switches back to the analysis and detection state, as shown in Figure 1, until there are six kinds of CS 2 , air, H 2 S, CO, SO 2 , SO 2 F 2 and CF 4 in sulfur hexafluoride gas The detection of typical gas components is completed.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420789251.8U CN204389458U (en) | 2014-12-15 | 2014-12-15 | A kind of gas chromatographicanalyzer for analyzing sulfur hexafluoride decomposition product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420789251.8U CN204389458U (en) | 2014-12-15 | 2014-12-15 | A kind of gas chromatographicanalyzer for analyzing sulfur hexafluoride decomposition product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204389458U true CN204389458U (en) | 2015-06-10 |
Family
ID=53362166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420789251.8U Expired - Lifetime CN204389458U (en) | 2014-12-15 | 2014-12-15 | A kind of gas chromatographicanalyzer for analyzing sulfur hexafluoride decomposition product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204389458U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370764A (en) * | 2016-10-31 | 2017-02-01 | 广东电网有限责任公司电力科学研究院 | Refilling type sulfur hexafluoride decomposition product chromatography online detector |
| WO2018076694A1 (en) * | 2016-10-31 | 2018-05-03 | 广东电网有限责任公司电力科学研究院 | Refilling-type online chromatographic detector for sulphur hexafluoride decomposition products |
| CN109633423A (en) * | 2018-11-14 | 2019-04-16 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of nozzle of circuit breaker ablation status assessing system |
| CN109781868A (en) * | 2017-11-10 | 2019-05-21 | 中国科学院大连化学物理研究所 | A gas chromatography-mass spectrometry device for detection of sulfur hexafluoride decomposition products |
| CN109781867A (en) * | 2017-11-10 | 2019-05-21 | 中国科学院大连化学物理研究所 | A gas chromatography-ion mobility spectrometry combined device for the detection of sulfur hexafluoride decomposition products |
| CN110514755A (en) * | 2019-08-16 | 2019-11-29 | 国家能源集团宁夏煤业有限责任公司 | Chromatographic detection device and method for detecting organic sulfur |
| CN111386461A (en) * | 2017-12-26 | 2020-07-07 | 陶氏技术投资有限责任公司 | System and method for providing on-line measurement of impurities in liquid ethylene oxide streams |
| CN112763634A (en) * | 2021-01-12 | 2021-05-07 | 国网安徽省电力有限公司电力科学研究院 | Sample introduction device for sulfur hexafluoride gas field analysis |
-
2014
- 2014-12-15 CN CN201420789251.8U patent/CN204389458U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10900940B2 (en) | 2016-10-31 | 2021-01-26 | Electric Power Research Institute Of Guangdong Power Gird Co., Ltd. | Refilling-type online chromatographic detector for sulphur hexafluoride decomposition products |
| WO2018076694A1 (en) * | 2016-10-31 | 2018-05-03 | 广东电网有限责任公司电力科学研究院 | Refilling-type online chromatographic detector for sulphur hexafluoride decomposition products |
| CN106370764B (en) * | 2016-10-31 | 2018-08-07 | 广东电网有限责任公司电力科学研究院 | A kind of recharging type sulfur hexafluoride decomposition product chromatography on-line detector |
| CN106370764A (en) * | 2016-10-31 | 2017-02-01 | 广东电网有限责任公司电力科学研究院 | Refilling type sulfur hexafluoride decomposition product chromatography online detector |
| CN109781868A (en) * | 2017-11-10 | 2019-05-21 | 中国科学院大连化学物理研究所 | A gas chromatography-mass spectrometry device for detection of sulfur hexafluoride decomposition products |
| CN109781867A (en) * | 2017-11-10 | 2019-05-21 | 中国科学院大连化学物理研究所 | A gas chromatography-ion mobility spectrometry combined device for the detection of sulfur hexafluoride decomposition products |
| US11698362B2 (en) | 2017-12-26 | 2023-07-11 | Dow Technology Investments Llc | System and method for providing on-line measurement of impurities in liquid ethylene oxide streams |
| CN111386461A (en) * | 2017-12-26 | 2020-07-07 | 陶氏技术投资有限责任公司 | System and method for providing on-line measurement of impurities in liquid ethylene oxide streams |
| CN109633423A (en) * | 2018-11-14 | 2019-04-16 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of nozzle of circuit breaker ablation status assessing system |
| CN109633423B (en) * | 2018-11-14 | 2020-09-08 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Circuit breaker spout ablation state evaluation system |
| CN110514755B (en) * | 2019-08-16 | 2022-03-22 | 国家能源集团宁夏煤业有限责任公司 | Chromatographic detection device and method for detecting organic sulfur |
| CN110514755A (en) * | 2019-08-16 | 2019-11-29 | 国家能源集团宁夏煤业有限责任公司 | Chromatographic detection device and method for detecting organic sulfur |
| CN112763634A (en) * | 2021-01-12 | 2021-05-07 | 国网安徽省电力有限公司电力科学研究院 | Sample introduction device for sulfur hexafluoride gas field analysis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204389458U (en) | A kind of gas chromatographicanalyzer for analyzing sulfur hexafluoride decomposition product | |
| US11467135B2 (en) | Online measuring system, method and application for semi-volatile organic compound in gas phase | |
| CN202486111U (en) | Gas chromatography system for analyzing sulfur hexafluoride decomposed product | |
| US10900940B2 (en) | Refilling-type online chromatographic detector for sulphur hexafluoride decomposition products | |
| CN201319028Y (en) | Portable sulfur hexafluoride gas chromatograph | |
| CN102928499B (en) | Rapid analysis device and method for ambient air volatile organic compounds | |
| CN201796017U (en) | Comprehensive analyzer for sulphur hexafluoride gas purity and decomposition products | |
| CN206450641U (en) | A kind of detector of sulfur hexafluoride decomposition product | |
| CN207300999U (en) | A kind of volatile organic compounds analytical equipment | |
| CN101609072A (en) | Volatile organic matter continuous monitor | |
| WO2022089630A1 (en) | Cold trap preconcentration system and method | |
| CN104764848A (en) | Gas chromatograph for gas analysis in production field | |
| CN101762655A (en) | Method for detecting internal fault of SF6 electrical equipment by using gas chromatograph | |
| CN106370764A (en) | Refilling type sulfur hexafluoride decomposition product chromatography online detector | |
| CN209387601U (en) | A gas detection device for benzene series | |
| CN201945580U (en) | Online analysis chromatograph for gas in insulating oil | |
| CN202305489U (en) | Chromatographic instrument for detecting failure of SF6 electric equipment | |
| CN205981803U (en) | Gaseous accurate sampling device who detects of sulfur hexafluoride | |
| CN221326431U (en) | Continuous automatic monitoring system for non-methane total hydrocarbons in ambient air | |
| CN102419327A (en) | A detection device for SF6 gas decomposition products | |
| CN210199047U (en) | On-line monitoring system for extracting polluted gas in soil remediation process | |
| CN210347556U (en) | Extremely rare sample direct determination enrichment sampling system | |
| CN203405450U (en) | Detection device for quantitatively detecting sulfur-containing fault gas components in sulphur hexafluoride electrical equipment | |
| CN201477082U (en) | Volatile Organic Compound Continuous Monitor | |
| CN218917297U (en) | On-line Monitoring System of Isoprene Secondary Organic Aerosol Organic Molecular Tracer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150610 |
|
| CX01 | Expiry of patent term |