A fire suppression nozzle can include a first fluid channel configured to be in fluid communication with a first fluid having a first flow velocity and a second fluid channel configured to be in fluid communication with a second fluid having a second flow velocity. A mixer can be disposed between the first fluid channel and the second fluid channel such that the mixer is configured to induce streamwise vorticity in at least the first fluid exiting first fluid channel to cause mixing of the first fluid and the second fluid to reduce a flow speed of a mixture of the first fluid and the second fluid.

A fire suppression nozzle can include a first fluid channel configured to be in fluid communication with a first fluid having a first flow velocity and a second fluid channel configured to be in fluid communication with a second fluid having a second flow velocity. A mixer can be disposed between the first fluid channel and the second fluid channel such that the mixer is configured to induce streamwise vorticity in at least the first fluid exiting first fluid channel to cause mixing of the first fluid and the second fluid to reduce a flow speed of a mixture of the first fluid and the second fluid.

Fixed systems and method for extinguishing large scale industrial tank fires, with and without fixed roofs, and featuring aerated foam projecting nozzles and including fixed center directed nozzles.

Fixed systems and method for extinguishing large scale industrial tank fires, with and without fixed roofs, and featuring aerated foam projecting nozzles and including fixed center directed nozzles.

The invention includes components and methodology for fixed and semi-fixed systems for extinguishing fire in large industrial flammable liquid storage tanks, including aerated foam projecting nozzles discharging substantially focused streams together with aeration chambers and risers.

The invention includes components and methodology for fixed and semi-fixed systems for extinguishing fire in large industrial flammable liquid storage tanks, including aerated foam projecting nozzles discharging substantially focused streams together with aeration chambers and risers.

An injection head for liquid fire extinguishing agent that has an injection head including an injection head body connecting with a pipe providing the liquid fire extinguishing agent, an orifice plate arranged in the injection head body and formed with an orifice through which flowing the liquid fire extinguishing agent and, a porous member having a block shape arranged in an exiting part of the orifice and, a baffle plate arranged contacting with an end surface of the porous member opposite side of the exiting part of the orifice; and the baffle plate covers at least a projected area of a circumscribed circle of the orifice of the end surface of the porous member and, the liquid fire extinguishing agent is released via a gap formed between the injection head body and the baffle plate.

A fire suppression system according to an embodiment of the present invention comprises: a detection unit for detecting a particular change due to a fire and transmitting a particular change value as a measurement value; a fire extinguishing unit for spraying a fire extinguishing substance; a control unit for receiving the measurement signal and transmitting an execution signal to the fire extinguishing unit; and a management unit enabling a user or a manager to confirm whether or not there is a fire, and for remotely operating the fire extinguishing unit, wherein the control unit transmits a notification signal to the management unit only when a measured measurement data value exceeds a threshold value, and transmits the execution signal only when an operation command is received from the management unit, thereby enhancing convenience and safety and reducing the initial cost.

A fire suppression system according to an embodiment of the present invention comprises: a detection unit for detecting a particular change due to a fire and transmitting a particular change value as a measurement value; a fire extinguishing unit for spraying a fire extinguishing substance; a control unit for receiving the measurement signal and transmitting an execution signal to the fire extinguishing unit; and a management unit enabling a user or a manager to confirm whether or not there is a fire, and for remotely operating the fire extinguishing unit, wherein the control unit transmits a notification signal to the management unit only when a measured measurement data value exceeds a threshold value, and transmits the execution signal only when an operation command is received from the management unit, thereby enhancing convenience and safety and reducing the initial cost.

A nozzle assembly includes a nozzle body, a first flow straightener coupled to the nozzle body, and a second flow straightener coupled to the nozzle body. The nozzle body defines an inlet, an outlet, and a nozzle body passage extending between the inlet and the outlet. The first flow straightener extends at least partially across the nozzle body passage and defines a first passage and a second passage each fluidly coupling the inlet and the outlet. The second flow straightener extends at least partially across the nozzle body passage and defines a third passage and a fourth passage each fluidly coupling the inlet and the outlet.