Sulfur hexafluoride sampling system

Abstract

The invention discloses a sulfur hexafluoride sampling system. The system comprises an electronic mass flow controller, a pressure sensor and a voltage monitoring module, which are all connected witha processor CPU through an A/D conversion module; and the system further comprises the processor CPU, a display screen, a keyboard, a solenoid value, a vacuum pump and a power supply circuit, whereinthe processor CPU is further connected with the electronic mass flow controller through a D/A conversion module; the processor CPU is also connected with the display screen for displaying flow data ofsulfur hexafluoride; the keyboard is connected with the processor CPU and used for inputting a control signal for the sulfur hexafluoride flow; the processor CUP controls the solenoid valve and the vacuum pump through a driving circuit; the power supply circuit is connected with the processor CPU and used for providing power for the whole system. The sulfur hexafluoride sampling system provided by the invention is invented to be portable, has own batteries and also can be connected with an external power supply, wherein a fast pipe insertion connection mode is used for a gas path connector, and thus, works can be carried out quickly at site. For the sulfur hexafluoride sampling system, intelligent automatic operations are realized through a system on chip integrated circuit, all switchingon and switching off and flow control can be in timed control through programming, and a status alerting and warning function is provided.

Description

technical field [0001] The invention relates to the technical field of sulfur hexafluoride, in particular to a sulfur hexafluoride sampling system. Background technique [0002] With the development of the power industry, the number of SF6 electrical equipment installed and put into operation is increasing, and the supervision of SF6 gas is becoming increasingly important. The samples taken must be able to represent the characteristics of most gases in the equipment body, and must not be polluted by external gases. At present, there is no mature SF6 gas sampling equipment on the market, and the sampling process is often cumbersome, and it is difficult to ensure that the sampling container is cleaned and completely isolated from the outside world. Contents of the invention [0003] In view of the above-mentioned defects in the prior art, the object of the present invention is to provide a sulfur hexafluoride sampling system, which can meet the sampling requirements of labor...

AI Technical Summary

Problems solved by technology

[0002] With the development of the power industry, the number of SF6 electrical equipment installed and put into operation is increasing, and the supervision of SF6 gas is becoming increasingly important. The samples taken must be able to represent the characteristics of most gases in the equipment body, and must not be polluted by external gases. At present, there is no mature SF6 gas sampling equipment on the market, and the sampling process is often cumbersome, and it is difficult to ensure that the sampling container is cleaned and completely isolated from the outside world.

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