A multimodal platform is provided for a railcar. The multimodal platform includes a first underframe, a second underframe, a loading platform, and rail wheels. The first underframe carries a first container and the second underframe carries a second container. The second underframe is coupled to the first underframe and coupling the first underframe and the second underframe provides an articulation point. The loading platform is disposed above the articulation point and between a first end of the first container proximate the second container and a second end of the second container proximate the first container. The rail wheels are disposed under the loading platform and coupled to the first underframe and the second underframe. The rail wheels are configured to transport the multimodal platform on rails of a railway.

A safety system for an automobile includes a safety device with containing areas in which two premixed liquids are stored during an initial state and which are in fluid communication with a fuel tank. Two valves are mounted internally in the safety device and are closed in the initial state to separate the premixed liquids. The valves are spaced apart at an initial distance, in the initial state, that is greater than a triggered distance, in a triggered state. A cylindrical ring is mounted in the safety device near the valves and has evacuation holes around its periphery that are adjacent to a respective pair of flow-mix channels. The flow-mix channels form a flow-path between the containing areas and a respective evacuation hole via which, in the triggered state, the premixed liquids are combined into a mixed liquid that is subsequently expelled for neutralizing fuel flammability in the fuel tank.

A safety system for an automobile includes a safety device with containing areas in which two premixed liquids are stored during an initial state and which are in fluid communication with a fuel tank. Two valves are mounted internally in the safety device and are closed in the initial state to separate the premixed liquids. The valves are spaced apart at an initial distance, in the initial state, that is greater than a triggered distance, in a triggered state. A cylindrical ring is mounted in the safety device near the valves and has evacuation holes around its periphery that are adjacent to a respective pair of flow-mix channels. The flow-mix channels form a flow-path between the containing areas and a respective evacuation hole via which, in the triggered state, the premixed liquids are combined into a mixed liquid that is subsequently expelled for neutralizing fuel flammability in the fuel tank.

A fire engine including a vehicle frame, a liquid nitrogen storage tank, a liquid nitrogen conveying pipeline, a gasification device, a plurality of electric valves, a water pipe adapter, a liquid nitrogen spray gun, and a mixed spray gun. The liquid nitrogen conveying pipeline includes a first pipeline and a second pipeline. The first pipeline connects the lower part of the liquid nitrogen storage tank, the gasification device, and the upper part of the liquid nitrogen storage tank sequentially in that order. The second pipeline connects the liquid nitrogen storage tank, an input end of the liquid nitrogen spray gun, and a first input end of the mixed spray gun. The mixed spray gun includes a first input end, a second input end, a liquid nitrogen nozzle, and a spray pipe. The spray pipe includes a contraction section, an expansion section, and an acceleration section.

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 turbine assembly is for driving a pump of a fire extinguishing system, the pump being configured for injection of a chemical into a fire water column. The turbine assembly includes a housing provided with a flow channel extending therethrough for guiding at least a portion of the fire water column through the turbine assembly and a turbine wheel for being arranged in the flow channel. The turbine wheel includes turbine blades and two opposite side portions connected to and separated by the turbine blades. The turbine wheel is provided with openings between the turbine blades in order to provide at least one flow channel through the turbine wheel even when it does not rotate. The at least one flow channel through the turbine wheel starts between two turbine blades, runs through the turbine wheel, and ends between two other turbine blades.

The present invention discloses a gas-powder separation three-phase jet flow fire monitor system, including a gas-powder separation three-phase fire monitor head, a filter, a nitrogen pressurization apparatus and a dry powder tank. The dry powder tank is connected to a powder feeding pipe of the gas-powder separation three-phase fire monitor head through a pipeline. A nitrogen outlet pipe of the gas-powder separation three-phase fire monitor head is connected with one end of the nitrogen pressurization apparatus through the filter. The other end of the nitrogen pressurization apparatus is connected with the dry powder tank. The present invention is simple in structure and convenient to use. A cyclone separation apparatus of a dry powder pipeline of the fire monitor may separate nitrogen from conveyed ultrafine dry powder to enable the ultrafine dry powder to be fully mixed with a water-based fire extinguishing agent, thereby reducing an atomization degree of jet flow and enlarging a range of the fire monitor. In addition, the separated nitrogen enters the dry powder tank for recycling after being pressurized by the pressurization apparatus, thereby reducing the fire extinguishing cost.

A fire suppression agent includes a potassium salt solution and vermiculite particles stored in isolation from the potassium salt solution. The vermiculite particles remain isolated from the potassium salt solution until triggered to mix with the potassium salt solution upon a discharge event.

An integrated fire suppression system receives inert gas from onboard gas generators and water effluent from onboard water generators. The inert gas and water effluent are mixed in a gas-water mixer to generate an inert aerosol. The inert aerosol is provided to a fire suppressant distribution network and sprayed into areas of the aircraft requiring fire suppression to provide cooling and to prevent reignition.

A device, composition, and a process for a hybrid blend of inert gas and mist produced for fire protection by local or total flooding. The method mixes ultrafine water mist, preferably less than 20 microns diameter produced by atomization and an inert gas such as nitrogen. A homogeneous hybrid composition discharges from a swirling flow mixer-injector device. The hybrid composition extinguishes a fire source in reduced time by simultaneous and synergistic cooling with the mist and inerting with the inert gas. After extinction oxygen remains at a safe level of 12.5-15% (V). The high-velocity inert gas flow of 35-75 mph velocity in the mixing-injector column formed by an exit in the mixer-injector device entrains the low-velocity mist flowing out of atomizer. The device creates a swirling, high-speed, and expanding flow of the hybrid composition inside the fire protection volume at ambient pressure.