Gas quantitative extraction device for transformer sf6 gas density measuring equipment

Abstract

The invention discloses a gas quantitative extraction device used for transformer SF6 gas density measuring equipment. Its structure includes a connecting head, a No. The head communicates with the quantitative extraction mechanism, and the quantitative extraction mechanism is installed in the shell. The beneficial effect of the present invention is that by inputting sulfur hexafluoride gas into the working chamber, the gas in the airbag is filled by extrusion with the help of sulfur hexafluoride gas. Into the balloon, when the air bag is squeezed as shown in Figure 4, the amount of sulfur hexafluoride gas occupying the working chamber can be determined. At this time, the air bag is separated from the output tube, and the sulfur hexafluoride gas is output from the output tube and detected , realize the quantitative extraction of sulfur hexafluoride gas, avoid the inaccurate density of gas extraction and detection due to the difference in space size, and ensure the accuracy of the detection results.

Description

technical field [0001] The invention relates to the field of measuring instruments, in particular to a gas quantitative extraction device used in transformer SF6 gas density measuring equipment. Background technique [0002] Sulfur hexafluoride gas is a colorless and odorless gas with stable chemical properties. Sulfur hexafluoride is used in transformers. Sulfur hexafluoride is used to replace the original insulating oil of transformers. However, in the process of application, six The density of sulfur hexafluoride gas, when the density of sulfur hexafluoride gas is too high, it is easy to burst, so it is necessary to measure the density of sulfur hexafluoride gas. The current transformer SF6 gas density measurement equipment has the following defects: [0003] When measuring the gas density, it is necessary to measure and compare it in the same space size. When the traditional gas density measuring instrument measures the gas density, when the measured amount extracted is ...

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Problems solved by technology

[0002] Sulfur hexafluoride gas is a colorless and odorless gas with stable chemical properties. Sulfur hexafluoride is used in transformers. Sulfur hexafluoride is used to replace the original insulating oil of transformers. However, in the process of application, six The density of sulfur hexafluoride gas, when the density of sulfur hexafluoride gas is too high, it is easy to burst, so it is necessary to measure the density of sulfur hexafluoride gas. The current transformer SF6 gas density measurement equipment has the following defects:

[0003] When measuring the gas density, it is necessary to measure and compare it in the same space size. When the traditional gas density measuring instrument measures the gas density, when the measured amount extracted is not equal, the density of the gas will change accordingly, resulting in inaccurate measurement results.

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