Device for Sampling Dust or Solid Particles in Particular for the Detection of Explosives

摘要

It comprises a handle (1), an air flow amplifier (8) leading to a retention means (2) such as a cyclone via a passage (3), and a compressed air inlet device (7, 9) in the amplifier (8) that creates a strong suction of outside air, through the nozzle (4) capable of capturing even fine particles of low content up to a measurable quantity. Being completely devoid of electricity, this device is useful in hazardous atmospheres, in particular for detecting the presence of explosives after analysis of the particles collected by this device. It makes it possible to sample particles in extreme conditions of high or low temperatures.

主权项

1. Device for sampling particles, comprising a handle (1) for grasping established on a cyclone (2) for retaining sampled particles, a compressed air duct (7) responsible for the suction, and a mechanical valve (5) for closing the compressed air duct (7), controlled by an actuator (6), characterised in that it comprises an air amplifier (18), connected to the cyclone (2), via a passage (3), the compressed air duct (7) opens into the air amplifier (8) by being directed towards the passage (3), and the air amplifier (8) comprises a circular slot (10) wherein the compressed air duct (7) opens, and a tapered groove (12) with a top directed towards the passage (3), extending the circular slot (9) and opening into a bore (13) of the amplifier (8), as such creating the amplification of the suction, and the amplifier is located between the cyclone and a nozzle (4) through which the particles enter into the device.