SF6 gas decomposition product analysis equipment

Abstract

The utility model discloses SF6 gas decomposition product analysis equipment which comprises a first gas chamber, a second gas chamber, a first flow dividing device and a vacuum gas pump, a vacuum pump is used for vacuumizing to prevent foreign gas from interfering test data, and a first concentration sensor used for detecting gas concentration is arranged in the first gas chamber; a first concentration sensor used for detecting gas concentration is arranged in the first gas chamber, a second concentration sensor used for detecting gas concentration is arranged in the second gas chamber, the first flow dividing device is arranged between the first gas chamber and the second gas chamber, the first flow dividing device comprises a first flow sensor and a first flow divider, and the first flow sensor is used for monitoring flow of flowing gas; the first flow divider is used for adjusting the flow of flowing gas; the SF6 gas decomposition product analysis equipment is provided with a gas inlet and a gas outlet, the gas inlet, the vacuum gas pump and the first gas chamber are connected through a three-way valve, the three-way valve is used for controlling and switching the first gas chamber to be communicated with the vacuum gas pump or the gas inlet, and the second gas chamber is communicated with the gas outlet.

Description

Technical Field

[0001] The utility model relates to the field of gas analysis equipment, in particular to an SF6 gas decomposition product analysis equipment. Background Art

[0002] SF6 gas decomposition product analysis equipment is a device that determines the latent faults of SF6 electrical equipment, the location of the faulty gas chamber, and the nature of the fault by detecting the sulfur dioxide and hydrogen sulfide content of SF6 gas decomposed in SF6 electrical equipment.

[0003] The current SF6 gas decomposition product analysis equipment needs to go through corresponding detection steps to detect the content of various gases in the detection gas. The operation steps are cumbersome and the detection is time-consuming and laborious. There is a need for an SF6 gas decomposition product analysis equipment that can improve the detection efficiency. Utility Model Content

[0004] The main purpose of the present application is to provide an SF6 gas decomposition product analysis device, aiming to solve the problems mentioned in the background technology.

[0005] The present application provides an SF6 gas decomposition product analysis device, comprising a first gas chamber, a second gas chamber, a first flow dividing device and a vacuum air pump, wherein the vacuum air pump is used to evacuate to prevent impurity gas from interfering with test data, a first concentration sensor for detecting gas concentration is provided in the first gas chamber, a second concentration sensor for detecting gas concentration is provided in the second gas chamber, the first flow dividing device is provided between the first gas chamber and the second gas chamber, the first flow dividing device comprises a first flow sensor and a first flow divider, the first flow sensor is used to monitor the flow rate of gas flowing through, and the first flow divider is used to adjust the flow rate of gas flowing through;

[0006] The SF6 gas decomposition product analysis equipment is provided with an air inlet and an air outlet. The air inlet, the vacuum air pump and the first air chamber are connected via a three-way valve. The three-way valve is used to control switching of the first air chamber to be connected to the vacuum air pump or the air inlet respectively, and the second air chamber to be connected to the air outlet.

[0007] Furthermore, it also includes a dew point detector and a second diverter device, the air inlet is connected to the first branch and the second branch respectively, the air inlet is connected to the three-way valve through the first branch, the air inlet is connected to the dew point detector through the second branch, the dew point detector is connected to the air outlet, the second diverter device is arranged between the first air chamber and the dew point detector, the second diverter device includes a second flow sensor and a second diverter, the second flow sensor is used to monitor the flow rate of the gas flowing through, and the second diverter is used to adjust the flow rate of the gas flowing through.

[0008] Furthermore, the three-way valve is controlled by a solenoid valve.

[0009] Furthermore, the first concentration sensor and the second concentration sensor can detect the concentrations of at least four gases respectively.

[0010] The utility model provides an SF6 gas decomposition product analysis device. By arranging multiple gas chambers and a first diversion device, two test environments can be created simultaneously for simultaneous testing. The content of each gas can be obtained through analysis, the test is convenient, the detection steps are simplified, and the structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0013] Figure 1 It is a modular schematic diagram of an SF6 gas decomposition product analysis device provided by the utility model in one embodiment.

[0014] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0015] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0016] See also Figure 1The present application provides an SF6 gas decomposition product analysis device 100, comprising a first gas chamber 10, a second gas chamber 20, a first flow dividing device 30 and a vacuum air pump 40, wherein the vacuum air pump is used for vacuuming to prevent impurity gases from interfering with test data, a first concentration sensor for detecting gas concentration is provided in the first gas chamber 10, a second concentration sensor for detecting gas concentration is provided in the second gas chamber 20, the first flow dividing device 30 is provided between the first gas chamber 10 and the second gas chamber 20, the first flow dividing device 30 comprises a first flow sensor and a first flow divider, the first flow sensor is used for monitoring the flow rate of gas flowing through, and the first flow divider is used for adjusting the flow rate of gas flowing through;

[0017] The SF6 gas decomposition product analysis equipment 100 is provided with an air inlet 101 and an air outlet 102. The air inlet 101, the vacuum air pump 40 and the first air chamber 10 are connected via a three-way valve 50. The three-way valve 50 is used to control the switching of the first air chamber 10 to be connected to the vacuum air pump 40 or the air inlet 101 respectively, and the second air chamber 20 to be connected to the air outlet 102.

[0018] This product first controls the vacuum air pump 40 through the three-way valve 50 to connect the vacuum air pump 40 to the pipeline of the first air chamber 10, starts the vacuum air pump 40 to scavenging the pipeline and then turns off the air pump; adjusts the solenoid valve to connect the pipeline from the air inlet 101 to the first air chamber 10, and the gas flows to the first air chamber 10. At this time, the first concentration sensor of the cavity of the first air chamber 10 detects the concentration of the pre-detected gas, and then the gas will pass through the first flow sensor, which can be adjusted to the required gas flow rate again through the first diverter for detection. At this time, the gas passes through the second air chamber 20 to repeat the same operation as the first air chamber 10, and the test data is synchronously transmitted to the screen. The gas that has been tested is finally discharged from the outlet 102 through the pipeline.

[0019] The utility model provides an SF6 gas decomposition product analysis device 100. By setting multiple gas chambers and a first diversion device 30, two test environments can be created simultaneously for simultaneous testing. The content of each gas can be obtained through analysis, the test is convenient, the detection steps are simplified, and the structure is simple.

[0020] In one embodiment of the utility model, the SF6 gas decomposition product analysis device 100 further includes a dew point detector 60 and a second flow divider 70, the air inlet 101 is respectively connected to the first branch and the second branch, the air inlet 101 is connected to the three-way valve 50 through the first branch, the air inlet 101 is connected to the dew point detector 60 through the second branch, the dew point detector 60 is connected to the air outlet 102, the second flow divider 70 is arranged between the first air chamber 10 and the dew point detector 60, and the second flow divider 70 is arranged between the first air chamber 10 and the dew point detector 60. It includes a second flow sensor and a second flow divider, wherein the second flow sensor is used to monitor the flow of the gas flowing through, and the second flow divider is used to adjust the flow of the gas flowing through; in this embodiment, the gas to be detected will be divided into two parts for detection after entering from the gas inlet 101, the gas flowing through the first branch to the first gas chamber 10 is for detecting the decomposition product of SF6, and the gas flowing through the first branch to the dew point detector 60 is for detecting the dew point, and the gas flowing to the second branch will pass through the second flow sensor, and the required gas flow can be adjusted by the second flow sensor, and finally flow to the dew point detector 60 for detection. The gas after detection will be discharged from the gas outlet 102 through the pipeline, and the final result will be displayed on the external display screen.

[0021] In one embodiment of the present invention, the three-way valve 50 is controlled by a solenoid valve.

[0022] In one embodiment of the present invention, the first concentration sensor and the second concentration sensor can respectively detect the concentrations of at least four gases.

[0023] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent processing scope of the present application.

Claims

1. An SF6 gas decomposition product analysis device, characterized in that: The invention comprises a first air chamber, a second air chamber, a first flow dividing device and a vacuum air pump, wherein the vacuum air pump is used for vacuuming to prevent impurity gas from interfering with test data, a first concentration sensor for detecting gas concentration is arranged in the first air chamber, a second concentration sensor for detecting gas concentration is arranged in the second air chamber, the first flow dividing device is arranged between the first air chamber and the second air chamber, the first flow dividing device comprises a first flow sensor and a first flow divider, the first flow sensor is used for monitoring the flow rate of gas flowing through, and the first flow divider is used for adjusting the flow rate of gas flowing through; The SF6 gas decomposition product analysis equipment is provided with an air inlet and an air outlet. The air inlet, the vacuum air pump and the first air chamber are connected via a three-way valve. The three-way valve is used to control switching of the first air chamber to be connected to the vacuum air pump or the air inlet respectively, and the second air chamber to be connected to the air outlet.

2. The SF6 gas decomposition product analysis equipment according to claim 1, characterized in that: It also includes a dew point detector and a second diverter device, the air inlet is connected to the first branch and the second branch respectively, the air inlet is connected to the three-way valve through the first branch, the air inlet is connected to the dew point detector through the second branch, the dew point detector is connected to the air outlet, the second diverter device is arranged between the first air chamber and the dew point detector, the second diverter device includes a second flow sensor and a second diverter, the second flow sensor is used to monitor the flow rate of the gas flowing through, and the second diverter is used to adjust the flow rate of the gas flowing through.

3. The SF6 gas decomposition product analysis equipment according to claim 1, characterized in that: The three-way valve is controlled by a solenoid valve.

4. The SF6 gas decomposition product analysis equipment according to claim 1, characterized in that: The first concentration sensor and the second concentration sensor can detect concentrations of at least four gases respectively.

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