Dust explosion limit test device and test method thereof

Abstract

The embodiment provides a dust explosion limit test device and a test method thereof. The test device comprises a spherical explosion tank, a heating device, a cooling device and a temperature control device, wherein the outer wall of the explosion tank adopts a double-layer structure with a cavity; the cavity is filled with heat transfer oil; the outer wall of the explosion tank is covered with a thermal insulation layer; a temperature sensor is arranged inside the cavity and used for measuring the temperature of the heat transfer oil; the temperature control device controls the heating device or the cooling device to heat or cool the heat transfer oil according to the temperature measured by the temperature sensor. The test device can not only achieve the dust explosion limit test in a standard condition, but also realize the dust explosion limit test in an abnormal temperature condition, thereby ensuring the carrying out of the research work of the dust explosion limit test under a non-standard condition, so as to guide the chemical powder practical production, and to provide a technical support for safety production.

Description

technical field [0001] The invention relates to the field of safety testing, in particular to a dust explosion limit testing device and a testing method thereof. Background technique [0002] At present, most of the testing and research on the dust explosion limit of various enterprises and research institutions at home and abroad are carried out by using standard experimental devices and under standard test conditions. For example, the national standard GB / T 16425-1996 named "Determination of Lower Limit Concentration of Dust Cloud Explosion Limit" provides a 20L spherical standard explosion test device for the lower limit concentration of combustible dust explosion. However, compared with the actual working conditions of complex powder production, these parameters only provide data under a standard test condition, and have little or no specific guiding significance for complex production working conditions. This is because in the specific production process, changes in du...

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Problems solved by technology

However, compared with the actual working conditions of complex powder production, these parameters only provide data under a standard test condition, and have little or no specific guiding significance for complex production conditions

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