Preparation system and use method of high-pressure mixed gas

A mixed gas and high-pressure mixing technology, which is applied in the direction of mixing methods, mixers, chemical instruments and methods, etc., can solve the problems of inability to obtain experimental data, low gas density, and small sample content, so as to ensure purity and improve high-pressure safety factor , the effect of preventing waste

Active Publication Date: 2020-02-18
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Under normal pressure or low pressure, due to the low density of the gas, the volume will shrink severely when it reaches high pressure, and the sample content is small, and effective experimental data cannot be obtained, which cannot meet the needs

Method used

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  • Preparation system and use method of high-pressure mixed gas
  • Preparation system and use method of high-pressure mixed gas
  • Preparation system and use method of high-pressure mixed gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A high-pressure mixed gas preparation system, such as Figure 1a As shown, the preparation system includes a gas source control part 1, a buffer tank 2, a first supercharger 3, a mixed gas container 4, a second supercharger 6, and a sampling chamber 7. The gas source control part 1 is used to provide the preparation and mixing Various gases required for gas. The quality of the mixed gas stored in the sampling chamber 7 is less than that of the mixed gas container 4, that is, the capacity for storing the high-pressure mixed gas inside the sampling chamber 7 is smaller than the capacity for storing the high-pressure mixed gas inside the mixed gas container 4.

[0050] The air source control unit 1 includes multiple air source branches. In this embodiment, there are three types of air source branches, and each air source branch includes an air source 10, an air source valve 11, and a flow meter connected in sequence. 12. The one-way valve 13 is connected with the air inlet...

Embodiment 2

[0059] On the basis of Example 1, such as figure 2 As shown, in the present embodiment, each air source branch includes an air source 10 and an air source valve 11 connected in sequence. It communicates with the air inlet of buffer tank 2. The rest is the same as in Example 1. When preparing the mixed gas, open the gas source valve 11 of one of the gas source branches separately, and when the gas flow reaches the set value, close the gas source valve 11 of the gas source branch. Open the gas source valves 11 of other gas source branches in turn.

Embodiment 3

[0061] On the basis of embodiment 1, 2, as image 3 As shown, the number of mixed gas containers 4 is three groups, and the gas inlet and outlet of each mixed gas container 4 is provided with a corresponding third valve V3. When a mixed gas needs to be configured, the corresponding third valve V3 is opened. After sampling, the remaining gas is recycled to the mixed gas container 4 .

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Abstract

The invention relates to the field of preparation of a high-pressure gas, in particular to a preparation system and a use method of a high-pressure mixed gas. The preparation system comprises a gas source control part, a first pressurizer, a mixed gas container, a second pressurizer and a sampling bin, wherein the gas source control part is used for providing various gases required for preparing the mixed gas, wherein a gas outlet of the gas source control part is communicated with a gas inlet of the first pressurizer, a gas outlet of the first pressurizer is communicated with a mixed gas container, and the first pressurizer and the mixed gas container are matched with each other and are used for carrying out primary supercharging on a gas exhausted by the gas source control part. A gas conveying pipeline is communicated between the mixed gas container and the gas inlet of the first pressurizer; the gas outlet of the first pressurizer is further communicated with the gas inlet of the second pressurizer, the gas outlet of the second pressurizer is communicated with the sampling bin, and the first pressurizer, the second pressurizer and the sampling bin are matched with one another and used for carrying out secondary supercharging on a gas exhausted from the mixed gas container.

Description

technical field [0001] The invention relates to the field of preparing high-pressure gas, in particular to a preparation system and a use method of high-pressure mixed gas. Background technique [0002] In the field of high-pressure science, gas is a very important research object. By changing its parameters such as temperature, pressure, and magnetic field, new physics and chemistry that do not exist under ordinary conditions can be induced, which is an important way to explore new materials. At the same time, the gas is also an excellent pressure transmission medium in a high-pressure environment, which can transmit the pressure to the solid sample more uniformly, forming an approximate hydrostatic pressure condition. [0003] Under normal pressure or low pressure, due to the low density of the gas, the volume will shrink severely when it reaches high pressure, and the sample content is small, and effective experimental data cannot be obtained, which cannot meet the needs....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F13/06B01F15/00B01F15/02B01F3/02B01F23/10
CPCB01F23/191B01F23/19B01F33/71B01F35/20B01F35/712
Inventor 蒋华超苏付海周浩曾雉
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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