Rapid detection and alarm device based on LNG (Liquefied Natural Gas) storage

Abstract

The invention relates to the technical field of natural gas storage, in particular to a rapid detection and alarm device based on LNG storage, which comprises a storage chamber and a storage tank arranged in the storage chamber; the top of the storage tank is provided with a sealing top end, and one end, close to the storage tank, of the inner wall of the top of the storage chamber is provided with an emergency sealing mechanism; and the emergency sealing mechanism is internally provided with a detection assembly, the emergency sealing mechanism is connected with an air draft mechanism, the emergency sealing mechanism comprises three electric telescopic rods which are fixedly mounted in the storage chamber at equal intervals, and detection end barrels are fixedly mounted at the end parts of extension rods of the electric telescopic rods. According to the rapid detection and alarm device, when natural gas leakage occurs at the sealed top end, the natural gas can be extracted at the first time, and whether the natural gas leaks or not is detected through a plurality of natural gas sensors; and by means of a plurality of spiral detection channels, the extracted air can generate cyclone in the bucket-shaped end, so that whether natural gas exists or not can be detected, and the detection effect is improved.

Description

technical field [0001] The invention relates to the technical field of natural gas storage, in particular to a rapid detection and alarm device based on LNG natural gas storage. Background technique [0002] Natural gas refers to all gases that exist naturally in nature, including gases formed by various natural processes in the atmosphere, hydrosphere, and lithosphere. The definition of "natural gas" that people have used for a long time is a narrow definition from the perspective of energy, which refers to the mixture of hydrocarbon and non-hydrocarbon gases naturally stored in the formation. In petroleum geology, it usually refers to oil field gas and gas field gas. Its composition is dominated by hydrocarbons and contains non-hydrocarbon gases. Liquefied natural gas means that the natural gas produced in the gas field is purified first, and then transported by liquefied natural gas ships after a series of ultra-low temperature liquefaction. The burning of liquefied na...

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Problems solved by technology

[0004] (1) The existing natural gas detection and alarm devices are generally fixedly installed on the top of the storage room. When the storage tank leaks, the sensor cannot directly contact the leaked natural gas in the first place. Carry out alarm processing;

[0005] (2) The existing natural gas detection and alarm device only has an alarm function. When personnel cannot rush to the scene for maintenance at the first time, they cannot perform emergency remedial work for natural gas leakage, so there are certain limitations in actual use

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