A sprinkler accelerator system includes an accelerator and at least one orifice. The accelerator is coupled with at least one pipe coupled with at least one sprinkler, and vents gas from the at least one pipe when the at least one sprinkler opens. The at least one orifice controls a rate of change of pressure in the at least one pipe to control operation of a flow control valve coupled with the accelerator.

The present application provides a fire-fighting apparatus, a box assembly, battery, a power consumption apparatus, and a method for preparing a battery. The fire-fighting apparatus includes: a pipe, a gas release mechanism, and a blocking structure. The pipe has an air inlet end and an air outlet end, and the air inlet end is configured to be connected to the battery, so that a combustible gas generated in the battery during thermal runaway events is capable of entering the pipe from the box via the air inlet end and being discharged from the pipe via the air outlet end; and the gas release mechanism is configured to be connected to the pipe and release a fire-fighting gas into the pipe when thermal runaway occurs in the battery; and the blocking structure is configured to block the combustible gas and the fire-fighting gas and change a flow direction.

The present application provides a fire-fighting apparatus, a box assembly, battery, a power consumption apparatus, and a method for preparing a battery. The fire-fighting apparatus includes: a pipe, a gas release mechanism, and a blocking structure. The pipe has an air inlet end and an air outlet end, and the air inlet end is configured to be connected to the battery, so that a combustible gas generated in the battery during thermal runaway events is capable of entering the pipe from the box via the air inlet end and being discharged from the pipe via the air outlet end; and the gas release mechanism is configured to be connected to the pipe and release a fire-fighting gas into the pipe when thermal runaway occurs in the battery; and the blocking structure is configured to block the combustible gas and the fire-fighting gas and change a flow direction.

An alarm system includes a first pressure sensor, a second pressure sensor, and one or more processors. The first pressure sensor can detect a first pressure of a fluid supply of a dry pipe sprinkler system. The second pressure sensor can detect a second pressure of gas in at least one pipe of the dry pipe sprinkler system. The one or more processors can receive the first pressure from the first pressure sensor and the second pressure from the second pressure sensor, determine a target minimum pressure based on the first pressure, compare the target minimum pressure to the second pressure, and output an indication of an alarm condition based on the comparison.

An alarm system includes a first pressure sensor, a second pressure sensor, and one or more processors. The first pressure sensor can detect a first pressure of a fluid supply of a dry pipe sprinkler system. The second pressure sensor can detect a second pressure of gas in at least one pipe of the dry pipe sprinkler system. The one or more processors can receive the first pressure from the first pressure sensor and the second pressure from the second pressure sensor, determine a target minimum pressure based on the first pressure, compare the target minimum pressure to the second pressure, and output an indication of an alarm condition based on the comparison.

A dry sprinkler assembly for fire suppression uses a tube within a pipe element to maintain a spring loaded valve in a closed position at the end of the pipe element connected to a piping network. The tube is held against the biasing force of the valve's spring by a plug acted on by the temperature sensitive trigger of the sprinkler mounted on the opposite end of the pipe element.

A dry sprinkler assembly for fire suppression uses a tube within a pipe element to maintain a spring loaded valve in a closed position at the end of the pipe element connected to a piping network. The tube is held against the biasing force of the valve's spring by a plug acted on by the temperature sensitive trigger of the sprinkler mounted on the opposite end of the pipe element.

A fire extinguishing equipment including an extinguishing-launching part-unit and a pressure-resistant storage body with an internal space housing a fire extinguishing material. A transport pipe is connected to the internal space to transport the fire extinguishing material to a use location. An extinguishing part-unit is connected to the external end of the transport pipe and includes one or more event-detecting part-units, which are connected to the extinguishing-launching part-unit. The extinguishing-launching part-unit is supplemented with a separation fitting disposed within the transport pipe, separated from a transport regulation fitting also disposed within the transport pipe. A reference pressure supply part-unit is within the transport pipe between the separation fitting and the transport regulation fitting. Each of the transport regulation fitting and the separation fitting includes a clamping housing and a rupture disc fixed therein, which rupture upon detection of a fire to dispense the fire extinguishing material.

A fire extinguishing equipment including an extinguishing-launching part-unit and a pressure-resistant storage body with an internal space housing a fire extinguishing material. A transport pipe is connected to the internal space to transport the fire extinguishing material to a use location. An extinguishing part-unit is connected to the external end of the transport pipe and includes one or more event-detecting part-units, which are connected to the extinguishing-launching part-unit. The extinguishing-launching part-unit is supplemented with a separation fitting disposed within the transport pipe, separated from a transport regulation fitting also disposed within the transport pipe. A reference pressure supply part-unit is within the transport pipe between the separation fitting and the transport regulation fitting. Each of the transport regulation fitting and the separation fitting includes a clamping housing and a rupture disc fixed therein, which rupture upon detection of a fire to dispense the fire extinguishing material.

A fire suppressing device including a torus container with a main body defining an interior chamber and a discharge port, the interior chamber configured to receive and retain metal organic framework materials. The fire suppressing device also includes an inductor coil extending through the interior chamber of the torus container and surrounding the metal organic framework materials. The inductor coil is configured to heat the metal organic framework materials to form a fire suppressing substance that is conveyed through the discharge port.