US 12,421,874 B2
Organic rankine cycle with integrated fire extinguishing function
Toshimitsu Tanaka, Tokyo (JP); and Ryo Takata, Tokyo (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Filed by MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Filed on Jan. 30, 2023, as Appl. No. 18/103,001.
Claims priority of application No. 2022-028781 (JP), filed on Feb. 28, 2022.
Prior Publication US 2023/0271043 A1, Aug. 31, 2023
Int. Cl. F01K 25/10 (2006.01); A62C 3/16 (2006.01); A62C 35/60 (2006.01); A62C 35/64 (2006.01); F01K 9/00 (2006.01); F01K 25/08 (2006.01)
CPC F01K 25/10 (2013.01) [A62C 35/60 (2013.01); A62C 35/64 (2013.01); F01K 9/003 (2013.01); F01K 25/08 (2013.01); A62C 3/16 (2013.01)] 18 Claims
OG exemplary drawing
 
1. Fire extinguishing equipment, comprising:
an ORC cycle configured to circulate a fire extinguishing agent as a working medium; and
at least one fire extinguishing agent supply line,
the ORC cycle including:
a condenser provided on the ORC cycle and configured to transfer cold energy from a first heat medium to a gaseous fire extinguishing agent that is the fire extinguishing agent in a gas state to liquefy the gaseous fire extinguishing agent,
a booster pump provided on a downstream side of the condenser on the ORC cycle and configured to pressurize a liquid fire extinguishing agent obtained by liquefying the gaseous fire extinguishing agent in the condenser,
a vaporizer provided on a downstream side of the booster pump on the ORC cycle and configured to transfer heat energy from a second heat medium to the liquid fire extinguishing agent to vaporize the liquid fire extinguishing agent, and
an expansion turbine provided on a downstream side of the vaporizer and on an upstream side of the condenser on the ORC cycle and configured to be driven by the gaseous fire extinguishing agent obtained by vaporizing the liquid fire extinguishing agent,
the at least one fire extinguishing agent supply line being configured to extract at least one of the liquid fire extinguishing agent or the gaseous fire extinguishing agent from the ORC cycle and supply the at least one of the liquid fire extinguishing agent or the gaseous fire extinguishing agent to at least one fire prevention area,
wherein the at least one fire extinguishing agent supply line includes a gaseous fire extinguishing agent supply line configured to feed the gaseous fire extinguishing agent from the ORC cycle to the at least one fire prevention area, and the gaseous fire extinguishing agent supply line has one end connected to a downstream side of the vaporizer and an upstream side of the condenser on the ORC cycle, and
wherein the at least one fire extinguishing agent supply line further includes a diverging line having one end connected to the gaseous fire extinguishing agent supply line and including a fire extinguishing condenser that is provided on the diverging line and configured to liquefy the gaseous fire extinguishing agent,
the other end of the gaseous fire extinguishing agent supply line is connected to a first fire prevention area of the at least one fire prevention area, and
the other end of the diverging line is connected to a second fire prevention area being different from the first fire prevention area of the at least one fire prevention area.