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Test method for safety critical partial pressure of methyl acetylene gas

A technology of methyl acetylene and gas, which is applied in the field of testing the safe critical decomposition pressure of methyl acetylene gas, can solve problems such as the inability to accurately measure and observe the decomposition of unstable gases, and the lack of data on the critical pressure of unstable gas decomposition, so as to save Test time, effect of accurate test

Active Publication Date: 2017-08-29
CHINA PETROLEUM & CHEM CORP QINGDAO RES INST OF SAFETY ENG +1
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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 for safety critical partial pressure of methyl acetylene gas

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Embodiment Construction

[0024] Such as figure 1 As shown, the pressure sensitivity explosion test device of the present invention includes a camera, a vacuum gauge, a pressure detection device, a temperature detection device, 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] Temperature 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 methyl acetylene gas under the process conditions of butadiene extraction, different ignition energies are used to study the safety critical pressure of methyl acet...

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Abstract

The invention relates to a test method of safe critical partial pressure of methylacetylene gas by adopting a decomposition explosion testing device. The test method comprises following steps of: (1) vacuumizing; (2), preheating the methylacetylene gas; (3) performing ignition testing. The test method can accurately fast test critical pressure of decomposition explosion of the methylacetylene gas under the condition of no oxygen, a tested critical pressure range is wide, temperature of a test process can be precisely controlled, and stability of the methylacetylene gas under high temperature and high pressure conditions can be observed.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, and in particular relates to a method for testing the safety critical decomposition pressure of unstable methyl 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/22
Inventor 张铁赵磊姜杰文松
Owner CHINA PETROLEUM & CHEM CORP QINGDAO RES INST OF SAFETY ENG
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