Fire suppression system for a double walled storage tank

A fire suppression system for a double walled storage tank comprising:

• an inner tank for containing a flammable liquid;
• an outer tank having an outer surface and an inner surface separated from said inner tank by a defined space;
• temperature sensing means for detecting combustion of said flammable liquid;
• means controlled by said temperature sensing means for delivering a flow of coolant into said space in the event combustion of said flammable liquid is detected;
• a leakage sensor for detecting the escape of said flammable liquid from said inner tank into said space;
• spray means for spraying said flow of coolant exiting said space on said outer surface of said outer tank if said leakage sensor has not detected flammable liquid escaping from said inner tank;
• and
• a pipe for carrying said flow of coolant exiting said space to a remote location if said leakage sensor has detected flammable liquid escaping from said inner tank.

A fire suppression system for a double walled storage tank comprising:

• an inner tank for containing a flammable liquid having a coating of ceramic paint;
• an outer tank having an outer surface treated with a coating of fire resistant material and an inner surface separated from said inner tank by a defined space;
• temperature sensing means for detecting combustion of said flammable liquid;
• means controlled by said temperature sensing means for delivering a flow of coolant into said space in the event combustion of said flammable liquid is detected;
• a leakage sensor for the escape of said flammable liquid from said inner tank into said space;
• an outlet allowing said flow of coolant to exit said space through said outer tank;
• spray means for spraying said coolant on said outer surface of said outer tank;
• a pipe for directing said flow of coolant to a remote location;
• and
• a valve controlled by said leakage sensor for either directing said flow of coolant exiting said outlet to said spray means if no leakage of flammable liquid has been detected, or directing said flow of coolant to said remote location through said pipe if leakage of said flammable liquid has been detected.