A self-filling gas extraction device

A self-filling and self-filling technology, which is applied in the direction of variable-capacity pump components, liquid variable-capacity machinery, pump components, etc., can solve the problems of ear washing balls, small double balls, easy to lose, easy to leak, etc.

Active Publication Date: 2019-10-11
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there are many instruments to be carried during on-site sampling, the ear washing ball and the double ball are small and easy to lose. The air inlet of the gas collection bag, if the interface is not suitable, it is easy to leak or it is difficult to connect

Method used

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  • A self-filling gas extraction device
  • A self-filling gas extraction device
  • A self-filling gas extraction device

Examples

Experimental program
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Embodiment Construction

[0031] Such as Figure 1 to Figure 5 As shown, a self-inflating gas extraction device includes an inflatable bag 1, and the inflatable bag includes a bag body 14 and an inflation mechanism 12 connected by a hose 13,

[0032] The bag body 14 is made of aluminum foil, and the back side of the bag body 14 is provided with an air outlet pipe 15 . An air intake pipe 11 is connected to the inflatable mechanism, and a front check valve 16 is arranged in the air intake pipe. It can flow out of the bag from the outlet pipe. The air inlet pipe and the air outlet pipe can be closed with clips to ensure that the gas collected inside does not leak.

[0033] The inflation mechanism can spring up by itself, and the inflation mechanism can be a hollow rubber ball.

[0034] The working method is to bring the self-filling gas collection bag to the sampling site, use the clip to clamp the air bag outlet pipe, and press the inflation mechanism repeatedly. The field gas enters the inflation mec...

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Abstract

The invention relates to a self-gas-filling type gas collection device. The self-gas-filling type gas collection device comprises a gas filling bag. The gas filling bag comprises a bag body and a gasfilling mechanism which are connected through a hose. The bag body is made of an aluminum foil material. A gas outlet pipe is arranged at the rear side of the bag body. A gas inlet pipe is connected to the gas filling mechanism and provided with a front one-way valve. Gases can enter the bag body only through the gas inlet pipe. A rear one-way valve is arranged in the gas outlet pipe. The self-gas-filling type gas collection device achieves gas filling through repeated extrusion conveniently and quickly. The design of the front and rear one-way valves allows the gases to be squeezed only fromone side to the other, thereby bringing convenience to replacing the gases in the bag body.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a self-filling gas extraction device. Background technique [0002] When testing toxicants in the workplace, phosphine, sulfur hexafluoride, liquefied petroleum gas, and methyl chloride need to be collected with a syringe or a gas sampling bag and brought to the laboratory for testing. Because the syringe is bulky and not easy to carry, gas sampling bags are generally used for gas sampling. [0003] When in use, it is necessary to inflate the gas collection bag with an ear washing ball, a double ball, etc. Since there are many instruments to be carried during on-site sampling, the ear washing ball and the double ball are small and easy to lose, and it is not easy to find them during on-site operations, which affects gas sampling. If the air inlet of the gas collection bag is not suitable, it is easy to leak or difficult to connect. Contents of the invention [0004] The invention prov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B45/06F04B39/10F04B39/12F04B39/00
Inventor 巩泉泉王坤窦丹丹王胜锋江红谢连科马新刚刘辉臧玉魏张国英尹建光张永张兆波陈超崔相宇
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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