Fully sealed gas taking device for gas relay

A gas relay, fully sealed technology, applied in the direction of sampling devices, measuring devices, instruments, etc., can solve the problems of three-way valve easy to escape gas sample, syringe head is fragile, affecting data analysis, etc., to achieve good sealing , wide application range and high data accuracy

Inactive Publication Date: 2015-03-25
STATE GRID CORP OF CHINA +1
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AI Technical Summary

Problems solved by technology

Problems existing in the prior art: because the syringe head is directly connected to the three-way valve, the syringe head is fragile and broken, and may even cause personnel skin injuries; the second is that when the staff unplugs the three-way valve, it is easy to escape the gas sample or inhalation of air; the third is to affect data analysis and even cause misjudgment

Method used

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  • Fully sealed gas taking device for gas relay

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Embodiment Construction

[0011] Such as figure 1 As shown, the fully-sealed gas extraction device of the gas relay includes a syringe 1, a three-way valve 3, a hose 4, and a gas outlet 5 of the gas relay. One end of the hose 4 is connected to the gas outlet 5 of the gas relay, and the other end is connected to the three-way valve. 3. One end of the two opposite ends of the outlet is connected. The diameter of the outlet 6 in the middle of the three-way valve is consistent with the diameter of the outlet of the syringe 1. It is characterized in that it also includes a two-way joint 2. The opposite end is connected to the other end of the outlet, and the other end is connected to the outlet of the syringe 1.

[0012] The two-way joint 2 is made of metal material.

[0013] Specific usage method: Turn the three-way valve 3 direction, first flush the connecting pipeline and syringe 1 with the gas in the gas relay, then turn the three-way valve 3 to empty the syringe 1, then turn the three-way valve 3 to t...

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Abstract

The invention provides a fully sealed gas taking device for a gas relay and belongs to the technical field of free gas chromatographic analysis in the gas relay. The problems that the head of an injector is easy to break and a gas sample easily escapes from a three-way valve or atmosphere is sucked are mainly solved. The device comprises an injector, a three-way valve, a hose and a gas relay gas outlet, wherein one end of the hose is connected with the gas relay gas outlet, and the other end of the hose is connected with one end of the outlet of two opposite ends of the three-way valve; the diameter of the middle outlet of the three-way valve is consistent with the diameter of the outlet of the injector; the device is characterized by also comprising a two-way joint; and one end of the two-way joint is connected with the other end of the outlet of two opposite ends of the three-way valve, and the other end of the two-way joint is connected with the outlet of the injector. The gas taking efficiency is high, and the utilization of gas samples and oil is increased; and moreover, the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of free gas chromatographic analysis in gas relays, and in particular relates to a gas relay fully-sealed gas-taking device. Background technique [0002] Chromatographic analysis is an effective means of equipment condition maintenance. After the transformer gas protection is activated, not only the chromatographic analysis of the transformer body oil, but also the chromatographic analysis of the free gas in the gas relay is required to determine whether there is a fault inside the transformer. At present, all-glass syringes are used in China, and the head is directly connected to the three-way valve. Problems existing in the prior art: because the syringe head is directly connected to the three-way valve, the syringe head is fragile and broken, and may even cause personnel skin injuries; the second is that when the staff unplugs the three-way valve, it is easy to escape the gas sample or Inhalation of ai...

Claims

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Application Information

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IPC IPC(8): G01N1/24G01N1/14G01N30/02
Inventor 张登宇高建国赵鹏里张劭嘉王少峰王新花
Owner STATE GRID CORP OF CHINA
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