Abstract:
A firefighting monitor system includes a monitor, a controller selectively generating signals to the monitor for controlling the monitor, and a computer. The computer is configured to receive input from a user relative to the monitor or the controller. The computer generates an output based on the input, and the output is transmitted to the controller for controlling the monitor or the controller in accordance with the output.
Abstract:
A method and apparatus to simulate a flow of products from a real fire without reproducing a thermal environment associated with the real fire includes the release of a gas or a mixture of gases with an appropriate density less than air to simulate smoke movement from real fire sources. The buoyant inert gas may be helium. In some embodiments, the buoyant gas is combined with artificial smoke, such as a tracer gas or an inert dye (e.g., a particulate) to provide a visual representation of the location and flow characteristics of the surrogate smoke that is released from a release apparatus. In another embodiment, optical techniques that show differences in gas density are used to visualize the movement of the buoyant gas. The release apparatus includes a control system that follows a prescribed time-dependent flow rate to simulate different fire source configurations and growth rates.
Abstract:
An automatic flow restrictor (12, 112) includes a movement sensor (24, 124) that detects undesired movement of a firefighting apparatus (10) relative to a support surface (26) and automatically reduces the flow of fluid through the apparatus (10) to thereby reduce reaction forces acting upon the apparatus. The sensor may be a slidable member (124) or an actuatable lever (24), for example, that detects movement of the apparatus (10) along or away from a support surface (26), and actuates an adjuster (32, 132) to restrict the flow of fluid until the forces are balanced and the apparatus (10) stops moving relative to the support surface (26).
Abstract:
A personal or spot area environmental management system has a low pressure air supply in fluid communication with an air nozzle and a water supply in fluid communication with a water nozzle. The air nozzle and water nozzle are arranged that the water nozzle includes a vortex in the air stream from the air nozzle reducing the pressure. The low pressure facilitates drawing water from the water supply through the water nozzle. The water exiting the water nozzle has an average diameter of 60 microns or less, which facilitates complete evaporation and effectively produces a cool, dry air stream.
Abstract:
Automatic earlier alarm and extinguishing fire device depend an the control unit which is connected between the alarm and extinguishing device. Automatic earlier alarm and extinguishing fire device comprises: fire sensitive unit, control unit, alarm device, and extinguishing fire device.
Abstract:
Method for extinguishing a fire in a space, especially in a tunnel or equivalent, in which method an extinguishing medium is sprayed in the space by means of spraying heads. In a first stage of the method, the flow and temperature of the hot gases produced by the fire are influenced by spraying an extinguishing medium into the space, especially by creating in the space at least one curtain (7) of extinguishing medium, and at least some spraying heads (11, 12) in the space are pre-activated into a state of readiness, and in a second stage at least one spraying head is activated to produce a spray of extinguishing medium. The invention also concerns an apparatus.
Abstract:
This invention relates to a district management system for a district. The district management system comprising: a central utility plant (CUP) comprising a thermal energy storage (TES), a chiller plant, an electricity supply system, and a control system; and a utility infrastructure adapted to interconnect the CUP to facilities within the district.
Abstract:
Fire extinguishing system (1) comprising a fire extinguisher (2) provided with a handle (5) configured such that upon activation thereof fire extinguishing substance is discharged through an outlet (4) of the fire extinguisher (2). A safety mechanism (6), which when in a first state, is arranged to prevent manual activation of the handle and when in a second state is arranged to allow manual activation of the handle. A control module (7) comprising a communication unit (8) and an actuator (9), wherein the actuator (9) is connected to the safety mechanism (6), and when the communication unit (8) receives a an activation signal the communication unit (8) is arranged to activate the actuator (9), wherein the actuator (9) causes the safety mechanism (6) to change from its first state into its second state and further causes fire extinguishing substance to discharge through the outlet (4) of the fire extinguisher (2).