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A test device and test method for accurate gas-liquid proportioning under normal temperature and negative pressure

A test method and test device technology, applied in the direction of measuring device, multiple fluid ratio control, ratio control, etc., can solve the problems of liquid phase boiling point reduction, liquid phase content reduction, gas and liquid content ratio imbalance, etc., to achieve liquid The effect of accurate control of phase content, convenient operation and simple structure

Active Publication Date: 2022-08-02
HEFEI UNIV OF TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the difficulties in the coexistence of gas and liquid under normal temperature and negative pressure is that the boiling point of the liquid phase will decrease under negative pressure. Gas and liquid content ratio imbalance

Method used

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  • A test device and test method for accurate gas-liquid proportioning under normal temperature and negative pressure
  • A test device and test method for accurate gas-liquid proportioning under normal temperature and negative pressure

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0021] like figure 1 As shown, a gas-liquid precise proportioning test device under negative pressure includes a gas cylinder 1, a vacuum manufacturing assembly 10, a container 15, and a cooling assembly 16, and the container 15 is respectively connected with the gas cylinder 1 and the vacuum manufacturing assembly 10. A control valve and a flow monitoring component are respectively arranged on the pipeline, and the container 15 is placed in the cooling assembly 16 . The container 15 is a glass container 15 .

[0022] The connecting pipeline includes the main pipeline 14 connected with the container 15, and the end of the main pipeline 14 is connected with the first branch pipeline connected with the gas cylinder 1 and the second branch pipeline connected with the vacuum manufacturing assembly 10 through the three-way valve 7 respectively; The main pipeline 14 is provided with a shut-off valve 12, and both ends of the shut-off valve 12 are connected to the pipeline through ho...

Embodiment 2

[0027] A test method based on a test device for accurate gas-liquid proportioning under negative pressure described in Example 1, comprising the following steps:

[0028] S1. The weighing container 15, the mass is M1, the measuring container 15, the volume is V; for the accuracy of the test, this scheme takes 3 pieces of test materials, and measures the mass and volume respectively. In this scheme, distilled water is poured into the container 15, the volume V of the container 15 is measured, and the value of the mass M1 is calculated; According to the material ratio requirements and the pressure requirements in the test process, the consumption of nitric acid A grams and the consumption of propane B milliliters were calculated respectively.

[0029] S2, inject the liquid phase into the prefabricated container 15, and call its mass M2, that is, the injected liquid phase mass is M2-M1;

[0030] S3, the container 15 containing the liquid phase is put into the cooling assembly 16...

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Abstract

The invention relates to the technical field of tests under given working conditions, in particular to a test device and a test method for accurate gas-liquid proportioning under normal temperature and negative pressure. The device includes a gas cylinder, a vacuum manufacturing component, a container, and a cooling component. It is connected with the gas cylinder and the vacuum manufacturing assembly, the connecting pipeline is respectively provided with a control valve and a flow monitoring part, and the container is placed in the cooling assembly. The invention has the advantages that the structure is simple, the operation is convenient, and by controlling the loss of liquid phase in the process of pumping negative pressure, accurate control of the contents of gas and liquid phase under negative pressure is realized.

Description

technical field [0001] The invention relates to the technical field of tests under given working conditions, in particular to a test device and a test method for accurate gas-liquid proportioning under normal temperature and negative pressure. Background technique [0002] The chemical process is a process industry, and many fine chemical synthesis processes are carried out in high temperature and corrosive environments. Especially with the new synthesis process, the compatibility of materials must be considered when selecting materials. At this time, if you want to obtain the corrosion adaptability of the material, you need to carry out a corrosion test under simulated working conditions, but the chemical process is a continuous process, and it is difficult for the laboratory to simulate a completely consistent process. Generally, by controlling the amount of the main corrosive medium, So as to achieve the purpose of detecting corrosion. [0003] The common synthesis proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/02G05D11/13
CPCG01N17/02G05D11/139
Inventor 孔韦海张强陈炜胡盼万章刘燕
Owner HEFEI UNIV OF TECH