Movable fire source device for tunnel fire test

Abstract

The embodiment of the invention provides a movable fire source device for a tunnel fire test, which comprises a trolley carrying a fire source, and further comprises a tunnel body with a changeable shape, a ground track paved on the ground surface of the tunnel body, and a conductor rail arranged on the side surface of the tunnel body; the trolley is provided with a power system, and the power system is connected with the conductor rail through a trolley conductor; any one of the ground rails is provided with a brake point. According to the movable fire source device provided by the embodimentof the invention, the movement track of the movable fire source is flexibly controlled by changing the shape of the tunnel body; power is supplied to a power system of the trolley in the tunnel bodythrough a conductor rail and a sliding contact line on the side face of the tunnel body. By arranging the brake point on any one of the ground rails, timely braking is achieved, and potential safety hazards are avoided.

Description

technical field [0001] The invention relates to the technical field of tunnel fire tests, in particular to a mobile fire source device for tunnel fire tests. Background technique [0002] With the development of my country's economy and the continuous advancement of infrastructure construction, more and more tunnels have been put into construction and use, including road tunnels, railway tunnels, and urban rail transit tunnels. Because the tunnel is located in the underground space, vehicle fire is an important hidden danger of tunnel safety. According to statistics, a fire occurs every 50 million kilometers traveled by a car, and various cables on the train and luggage carried by passengers are also important impacts of fires. factor. [0003] Carrying out fire research in tunnels, especially automobile / train fires, is an important way to reduce the occurrence of tunnel fires and reduce the impact of fires. The research methods include fire test research, theoretical rese...

AI Technical Summary

Problems solved by technology

This technology preliminarily realizes the movement of the mobile trolley, but there are still the following problems: (1) The traction motor and gearbox are located outside the tunnel, and the traction motor and the trolley are connected by ropes, which can only realize the linear motion of the trolley or a nearly straight-line trajectory. At the same time, the test cannot be carried out for tunnels with large slopes.

(2) Pulling the trolley to move by the rope can only realize one-way movement of the trolley

(3) The trolley is pulled forward by the rope and cannot be braked. When an emergency occurs, the motor will stop running in time. Due to the inertia, the trolley will continue to move forward, and because the fire source system is generally placed on the trolley, the above-mentioned Existing technology has security risks

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