TEST BENCH FOR FIRE DETECTORS AND GAS-ANALYTICAL SENSORS Russian patent published in 2025 - IPC G08B17/00 

FIELD: fire-fighting means.

SUBSTANCE: invention relates to firefighting equipment. Stand for testing fire detectors and gas-analytical sensors comprises a control panel, a rectangular measuring chamber, gas-analytical sensor of oxygen, carbon oxide and carbon dioxide and a socket for arrangement of various fire detectors, an electric heater with a sample of combustible material, which are located in it. Measuring chamber is divided by grate into top and bottom parts. In the upper part there are sockets for detectors and detectors, a plenum ventilation damper with a plenum fan. Water feed nozzles are secured at chamber ceiling. Sockets for arrangement of smoke, heat and flame detectors are connected to reception-control fire-protection control device which is connected to personal computer through analogue and discrete input module and interface converter. Sockets for arrangement of gas-analytical sensors of oxygen, carbon oxide and carbon dioxide are connected to module of analogue and discrete input, to which the first power supply unit is connected. Second power supply unit is connected to the fire safety and control room. Steel sheet is arranged atop said grate , its width being equal to measuring chamber top part depth while steel sheet height makes 2/3 of measuring chamber top part height. On the side walls of the upper part of the measuring chamber, metal sheets are attached to the brackets. Length of the first and second metal sheets is 1/2 of the width of the upper part of the measuring chamber, and their width is proportional to the depth of the upper part of the chamber. In the lower part of the measuring chamber under the grid there is a funnel-shaped drain which is connected by a pipe to an opening in the side wall.

EFFECT: possibility of determining the response time of heat, smoke and flame fire detectors, as well as gas-analytical sensors in conditions close to a real fire in premises, as well as during fire extinguishing.

1 cl, 3 dwg