The function of rotating screen of fire cyclone separator is to produce

The function of the rotating screen of the fire cyclone separator is to generate mechanical means to induce the formation of vortex. The formation of fire cyclone needs three key factors: the generation of vortex, the sinking of fluid and the friction acting on the horizontal plane. According to the induction mode of vortex generation, devices for simulating fire cyclones under laboratory conditions can be divided into two categories:

The characteristic of thermal-driven fire cyclone simulator 1 is that the vortex generated is naturally induced by Quillfire flow.

2. It is a mechanical-driven fire cyclone simulator, which induces vortex generation by mechanical means such as fan or rotating gauze curtain.

3. For the thermal-driven fire cyclone simulation method, byram and martin induced the fire cyclone by using a hollow cylindrical shell device with tangential slits. They found that the burning speed of alcohol fire cyclone is about three times that of ordinary alcohol pool fire. Hassan et al. carried out fire cyclone experiments with two vertically staggered semi-cylindrical shells. The results show that the tangential velocity and radial velocity of the fire cyclone increase with the increase of radial direction.