Indoor SF6 gas alarm device

Abstract

The embodiment of the invention discloses an indoor SF6 gas alarm device. The device includes a detection probe, a gas alarm controller, an audible and visual alarm, a wireless communication module and a strong exhaust mechanism; the strong air exhaust mechanism comprises a pair of adjustable air exhaust areas arranged in a room; negative pressure cavities are formed in the outer sides of the adjustable air exhaust areas respectively; a low-pressure air exhaust area is formed in the area, corresponding to the adjustable air exhaust areas, in the room; a high-pressure filling area used for filling the air exhaust low-pressure area with outside air is arranged above the low-pressure air exhaust area; the detection probe can longitudinally slide through a linear motor and is installed at thebottom end of the room in a locked mode; SF6 gas is monitored through the detection probe; a short message alarm mode and a sound-light alarm mode are provided; and a solution for rapidly extracting out the SF6 gas is provided. The device has strong pertinence to the extraction of the SF6 gas; and the air in the room comprehensively flows in the process, so that an air renewal speed is higher.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of alarm devices, in particular to an indoor SF6 gas alarm device. Background technique [0002] Sulfur hexafluoride is a colorless, odorless, non-toxic, non-flammable stable gas with the chemical formula SF 6 Its molecular weight is 146.07, and its density is 6.1kg / m3 at 20°C and 0.1MPa, which is about 5 times the density of air. Sulfur hexafluoride is gaseous at normal temperature and pressure, with a critical temperature of 45.6°C, a triple point temperature of -50.8°C, and a sublimation point temperature of -63.8°C under normal pressure. The molecular structure of sulfur hexafluoride is arranged in an octahedron, the bonding distance is small, and the bonding energy is high, so its stability is high. When the temperature does not exceed 180 ° C, its compatibility with electrical structural materials is similar to that of nitrogen. [0003] SF6 gas is often contained in various...

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Problems solved by technology

[0005] For this reason, the embodiment of the present invention provides an indoor SF6 gas alarm device to solve the problems in the prior art that human nose discrimination threatens the safety of the operator, and the use of an exhaust fan cannot directly extract the toxic gas.

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