The raw material and products of petroleum and petrochemicals industry are mainly flammable and explosive, and the complicated production technology and various production equipment easily give rise to explosion and fire accident. The fire accident in petroleum and petrochemicals industry usually along with explosion, which is very harmful for environment and public with the features of high tridimensional character and easy reignition and re-explosion. So it will be necessary to set fixed and mobile fire fighting equipment to reduce the fire disaster for the features of this type protected target.