Heavy gas leakage diffusion simulation and inhibition control test system

Abstract

The invention discloses a heavy gas leakage diffusion simulation and inhibition control test system. The heavy gas leakage diffusion simulation and inhibition control test system comprises an experiment wind tunnel, a heavy gas filling and recycling mechanism, an inhibition control unit and a data acquisition unit, wherein the heavy gas filling and recycling mechanism is used for injecting heavy gas into the experiment wind tunnel, and recycling low-temperature liquid; a natural environment simulation unit is arranged in the experiment wind tunnel to regulate natural environment parameters in the experiment wind tunnel; after the injected heavy gas is subjected to a water-curtain control test, a high-power foam control test and / or an obstacle test in the experiment wind tunnel through the inhibition control unit, the control effect is obtained by a monitoring point array at the downstream of the experiment wind tunnel. The heavy gas leakage diffusion simulation and inhibition control test system can be used for simulating and analyzing key factors which affect an evaporation rate as well as a leakage diffusion vapor temperature, concentration and distribution and the influence degree, under different leakage dimension shape positions, temperatures, humidity, wind speeds, radiation as well as active and passive control, of heavy gas, observing, extracting and analyzing minute links, tracing matter energy direction, performing mechanism study and establishing numerical simulation.

Description

technical field [0001] The invention belongs to the technical field of safety, in particular to a heavy gas leakage diffusion simulation and suppression control test system. Background technique [0002] Heavy gases such as carbon dioxide and liquefied natural gas (LNG) are widely used for their special purposes and are growing rapidly. However, if this gas leaks, the vapor will spread along the surface, which will cause certain harm and even cause an explosion. It has become one of the key issues to ensure safety to study the characteristics of heavy gas diffusion and how to restrain the scope of leakage and diffusion, reduce the harmful consequences, and control the risk of leakage and diffusion. [0003] According to the investigation of the current heavy gas leakage and diffusion research devices at home and abroad, it is found that the research at home and abroad is far from enough in the research of heavy gas leakage and diffusion. The main domestic and foreign paten...

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Problems solved by technology

[0005] Chinese patent CN104318623A relates to a heavy gas receiving station leakage and explosion accident simulation display method, which mainly solves the problems in the prior art that do not consider the influence of the complex environmental factors of the heavy gas receiving station on the diffusion explosion, and do not perform strict simulation calculations

[0009] (1) The above patents can study the distribution of heavy gas leakage and diffusion gas clouds and the characteristics of explosive combustion, but they cannot effectively control the natural environmental conditions and simulate different natural environments

[0010] (2) The above patents are mainly used to study the leakage and diffusion of heavy gas under a single situation, and there is no general small-scale experimental platform, which can conduct simulation research on the characteristics and mechanism of heavy gas leakage and diffusion under different suppression emergency technologies

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