Fire simulated experiment device for moving object in tunnel
A technology for simulating experimental devices and experimental devices, which is applied in the field of fire and combustion experimental devices, and can solve problems such as the inability to solve the problem of moving fire source detection
Inactive Publication Date: 2013-03-13
BEIJING JIAOTONG UNIV
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Problems solved by technology
[0004] It can be seen that the current tunnel fire simulation experiment device can only carry out simulation experiments under the condition of static fire source, and cannot solve the detection problem of moving fire source
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[0034] The present invention will be further described below with reference to the drawings.
[0035] A fire simulation experimental device for moving bodies in a tunnel, such as figure 1 , the experimental device includes: simulated tunnel casing 1, burner 17, first and second rectifier valves 31-1, 31-2, ventilation system and data acquisition system.
[0036] The simulated tunnel shell 1 adopts two layers of 0Cr18Ni9Ti stainless steel plates with a thickness of 2 mm, and a 50 mm thick aluminum silicate silk fiber blanket is used as a thermal insulation layer in the middle. The body of the tunnel 1 is a cavity with a rectangular cross section, and the inner cavity is 20m×0.95m×1.1m (length×width×height).
[0037] The simulated tunnel casing 1 is fixed on a bracket on the ground; the front and rear doors 47-1 and 47-2 are respectively installed on the front and rear surfaces of the simulated tunnel casing 1, and sealed with the simulated tunnel casing 1; The front and rear ...
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Abstract
The invention discloses a fire simulated experiment device for a moving object in a tunnel, relates to a fire combustion experiment device and aims to provide an experiment device for testing the combustion characteristic and smoke distribution of a moving fire source and researching the rule of a moving fire in a tunnel. A smoke temperature sensor, a component sensor, a visibility sensor, a pressure sensor and an air velocity sensor are distributed on a simulated tunnel shell (1). The bottom surface of the simulated tunnel shell is provided with a first track (44-1) and a second track (44-2), and four wheels fixed on a base (42) are placed on the tracks. The moving object (45) is arranged in the base and internally provided with a combustor (17), a mass sensor (26) and a mass data receiver (34); and the moving object is connected with an electric motor with a winding drum through ropes arranged at two ends of the moving object, and the movement speed of the moving object is adjusted through the rotating speed of the electric motor. Experiments are carried out respectively under the condition of mechanical ventilation and no mechanical ventilation; and fuel is filled in the combustor and then ignited, a data acquisition system is started up to drive the moving object, and a travel switch (20) is touched and pressed to completely cut off the electric motor, so that one experiment is finished.
Description
technical field [0001] The invention relates to a fire combustion experiment device, which is suitable for the research on the relevant mechanisms such as fuel combustion characteristics, fire smoke diffusion law, movement fire control and impact on personnel evacuation when a train continues to move after it catches fire in a railway or subway tunnel. Background technique [0002] After the train catches fire in the tunnel, it is more difficult to force the train to stop in the tunnel to carry out evacuation and rescue. At present, it is generally stipulated that the train should travel as far as possible outside the tunnel or to the railway rescue station or the station in front of the subway for emergency rescue. When the train runs with a fire source, a certain amount of piston wind and reverse air flow will be formed, and a windward air flow will be generated near the fire source, which will have an impact on the combustion process of the fire source. There are two poss...
Claims
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IPC IPC(8): G01D21/00G01N13/00
Inventor 毛军白光郗艳红汪彤顾丛汇李卫军
Owner BEIJING JIAOTONG UNIV