Trace gas pump and exhaust method thereof

Abstract

The invention provides a trace gas pump and an exhaust method thereof. The trace gas pump comprises a pressure resisting bottle (100), a pressure stabilizing and reducing structure (101) and an air filter (102), wherein the pressure stabilizing and reducing structure (101) is provided with a one-way air inlet valve (4) and an air outlet (6); the pressure stabilizing and reducing structure (101) is connected with the opening of the pressure resisting bottle(100) in a sealed manner; the air outlet (6) of the pressure stabilizing and reducing structure (101) is communicated with the air inlet of the air filter (102) through a connecting tube (103); the air outlet of the air filter (102) is communicated with a flow limiting tube (104); the flow limiting tube (104) is provided with a vent hole (105). The trace gas pump has the advantages of stable gas exhaust, high precision and convenience in use, and also has the advantages of simple and smart structure, low cost and convenience in carrying over.

Description

technical field [0001] The invention belongs to the technical field of mechanical equipment, and in particular relates to a trace gas pump and an exhaust method thereof. Background technique [0002] In many fields, it is necessary to continuously supplement some gases in a small amount for a long time, such as oxygen, nitrogen, carbon dioxide, etc., to maintain the enrichment state of a certain gas in the local environment in a semi-sealed state. In the prior art, a large amount of air is usually used to continuously inflate this local environment with a large air bottle. This kind of large air bottle has the following problems: (1) by controlling the size of the pressure exerted by the fingers on the large air bottle, the air output speed and the air output volume are adjusted, and the air output speed and the air output volume are adjusted. The problem of unstable gas volume, especially for some occasions that need to continuously supplement gas in a small amount, when us...

AI Technical Summary

Problems solved by technology

In the prior art, a large amount of air is usually used to continuously inflate this local environment with a large air bottle. This kind of large air bottle has the following problems: (1) by controlling the size of the pressure exerted by the fingers on the large air bottle, the air output speed and the air output volume are adjusted, and the air output speed and the air output volume are adjusted. The problem of unstable gas volume, especially for some occasions that need to continuously supplement gas in a small amount, when using a large cylinder, because the gas output cannot be precisely and micro-controlled, it can only be over-inflated to ensure the local enrichment of a certain gas, resulting in gas Waste, and at the same time, the excessive displacement will take away the moisture in the local environment, causing local drying; (2) the large cylinder has the problem of inconvenient to carry and move

Images