Study on the overpressure of gas explosion in the pipeline affected by charged water mist

In order to study the effect and mechanism of gas explosion overpressure affected by charged water mist, small pipeline was used to simulate gas explosion. And the gas explosion overpressure and average overpressure rise rate were studied under the action of different charged voltages. The gas explosion overpressure was obtained under the action of different fluxes. The results show that gas explosion propagation overpressure and average overpressure rise rate are inhibited obviously with the increase of charged voltages, and gas explosion overpressure decreases obviously with the increase of fluxes. Compared with ordinary water mist under experimental conditions, when the mist flux is 4 L and the charged voltage is 8 kV, gas explosion propagation overpressure reduces 10.798 kPa, with a drop of 49.78%; average overpressure rise rate reduces 180.468 kPa/s, with a drop of 49.90%. ©, 2015, China University of Mining and Technology. All right reserved.