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Test method of safe critical partial pressure of vinyl acetylene gas

A vinyl acetylene and gas technology, applied in the direction of material explosiveness, etc., can solve the problems of lack of data on the decomposition critical pressure of unstable gas, inability to accurately measure and observe the decomposition of unstable gas, etc., and achieve the effect of saving test time and accurate testing.

Inactive Publication Date: 2015-09-23
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

In the existing test methods, it is impossible to accurately measure and observe whether the unstable gas is decomposed, so there is a lack of data on the critical pressure of unstable gas decomposition

Method used

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  • Test method of safe critical partial pressure of vinyl acetylene gas

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Embodiment Construction

[0024] Such as figure 1 As shown, the pressure sensitivity explosion testing device of the present invention includes a camera, a vacuum gauge, a pressure detection device, a thermometer, an ignition device, a steel cylinder, a gas preheating device, a vacuum pump and a detonation tube, wherein:

[0025] Gas preheating device and detonation tube are used to preheat pressure-sensitive gas to obtain the required temperature under high temperature and high pressure working conditions;

[0026] Pressure detection equipment and pressure detection equipment are installed on the detonation tube, and the measured temperature and pressure are fed back to the computer control device;

[0027] The heating system of the detonation tube is electric heating.

[0028] According to the temperature and pressure of vinyl acetylene gas under butadiene extraction process conditions, different ignition energies are used to study the safety critical pressure of vinyl acetylene gas under different ...

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Abstract

The invention relates to a test method of safe critical partial pressure of vinyl acetylene gas by using an explosive decomposition testing device. The test method comprises the following steps: (1) vacuumizing; (2) preheating vinyl acetylene gas; (3) testing ignition. The test method is capable of accurately and quickly testing the critical pressure of explosive decomposition of the vinyl acetylene gas in the absence of oxygen; the tested critical pressure range is wide; the temperature in the test process can be accurately controlled; meanwhile, the stability of the vinyl acetylene gas under the high-temperature and high-pressure condition can be observed.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, in particular to a method for testing the safety critical decomposition pressure of unstable vinyl acetylene gas. Background technique [0002] During the production and transportation of petrochemical products, flammable gases are usually stored or transported in closed containers or pipelines. Due to the confinement, the gas explosion will produce high pressure and pressure rise rate, so as to cause casualties and property damage. However, in the device system where the container is connected to the pipeline, due to the pressure accumulation effect and the secondary explosion, the consequences of the gas explosion accident in the container piping system are more serious, and often lead to catastrophic consequences. Obtaining the characteristic parameters of gas explosion and predicting the intensity of gas explosion is of great significance for the safety design of explosion sup...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/54
Inventor 张铁赵磊
Owner CHINA PETROLEUM & CHEM CORP
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