Education - Mosquito Control
Know Your Machine
The “Suraksha” Fogging Machine operates on the principle of valved pulse jet engine. It has one-sided open (fog outlet) jet-tube (resonator) with a valve at the air inlet side (carburetor). The pulse jet system operates without any moving parts, consisting of carburetor, Inlet Tube, Combustion Chamber and Resonator.
Close to the end of the resonator, fogging solution is injected in the hot air stream emerging at high velocity, and is dispersed into the finest aerosol droplets and distributed into the atmosphere as suspended fog.
The temperature of the solution at the point where the fogging solution is fed is in the range of 40º- 60º C. The solution is exposed to heat for not more than 4-5 milliseconds. Therefore, there is almost no rise in the temperature of the solution & there could be a substantial reduction in its temperature as the solution comes in contact with atmosphere if the ambient temperature is less. Therefore, heat sensitive substances can also be used for thermal fogging.
The machine runs on fuel like gasoline and does not need any external trigger to ignite during regular running. It is only during starting of the machine that an external spark is provided using a spark plug. The vacuum created during each cycle (about 100 cycles per second) pulls the air and petrol continuously to keep the machine running on its own.