RU3424U1 - FIRE SIGNALING OF ELECTRIC TRAIN - Google Patents

Abstract

Fire alarm of an electric train containing sensors installed in the cars, a driver-passenger communication line and a signaling element, characterized in that it is equipped with a threshold device with a level adjuster for the magnitude of the signals from the sensors to its inputs, a programmable processor, a converting output device, and key, while the outputs of the threshold device are connected to the inputs of the processor, the output of which is connected to the input of the converting output device, and the output of the converting output device is connected It is not connected to the driver-passenger communication line, the key input being connected to the driver-passenger communication line and its output connected to the processor input, and smoke detectors are used as sensors, and the signaling element is the driver-passenger communication line loudspeaker installed in the driver’s cab .

Description

Cl. B 60 Q 9/00

FIRE COMBINED ELECTRIC TRAIN.

The occurrence of fires on electric trains is a rather serious danger, especially during the movement of an electric train, since oncoming air flows lead to an intensification of the combustion process. The situation is complicated by the fact that a large number of people are crowded into the carriage of electric trains, like a pravrio, and when there is a fire and smoke, people try to open the windows for ventilation, which only aggravates the situation. At the same time, people succumb to a panic state and are not able to immediately notify the driver of a fire in the car.

In connection with the foregoing, the safety and health of the pazayazhazhirs largely depends on the timely receipt by the driver of information about the very occurrence of a fire in the car, and about in which car and the specific place of the fire occurred and what is the nature of this fire.

The fire alarm of the ER2T electric train is known, which contains thermal sensors installed in the electrical cabinet or in the attic of one of the cars and alarm relays that turn on when there is a dangerous temperature increase and sends a FIRE DANGER signal to the driver’s cabin and a signal lamp lights up on the remote control. In addition, the driver-passenger communication line is included in the alarm system (see Operation of an electric train, Dukano P.V., Prosvirin B.K., Moscow, Transport, 1994, pp. 96-98, 142).

However, this fire alarm has a number of serious drawbacks. Firstly, the sensors react only to temperature increases in ventilation ducts and in electric shocks, and when a fire occurs in the passenger compartment of an electric train car, the alarm is triggered when it is too late and the fire is intense.

Bo-BTopfaix, there is no information in which car the fire occurred. Therefore, upon receipt of a signal of a WARNING, the locomotive team should stop the train and go on the car and determine the place where the fire occurred and PE) ИС1to extinguish. In addition, when a FIRE signal is received, it is impossible to determine what really happened. Ili ignition is a simple excess of the maximum permissible air temperature during operation of air heaters, etc. (om. train and its maintenance.

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Given the fact that the time it takes for the car to burn out completely on the go is only a few minutes, it becomes clear that the creation of a fire engine with the freezing of all of the above drawbacks is of prime importance. In addition, the deliberate arson of wagons during terrorist acts should not be ruled out.

In connection with the foregoing, the task was to create a fire alarm, which allows for informational overload of the driver and the impossibility of laying any additional wiring in electric trains in accordance with the Safety Requirements for electric trains to receive information about the occurrence of a fire at the stage of its occurrence, indicating a specific electric train car in which a fire has arisen.

The fire alarm of the electric train shown in Fig. 1 contains fire alarm sensors 1 installed in the carriage in the amount of five pieces (one in each vestibule and three in the passenger compartment of the car), which are used for fire detectors y 12-5 (Dyp -5), designed to detect fires in wagons and vestibules of an electric train, accompanied by an increase in smoke concentration, as well as a threshold device 2, which is a standard logical comparison element, with a value level adjuster with p n catch 3 coming from sensors 1, when exceeded: at the output of the threshold device, a signal arrives at one of the inputs (depending on the carriage number) of the programmable processor 4. The signal from the output of processor 4 is digitally fed to the input of the converting output device 5 , which is a converter of a digital signal into an analog one and from the output of which a signal is supplied via a driver-passenger 6 communication line to a loudspeaker 7 installed in the driver's cab. A message about a fire is given out by the phrase Fire in 112 wagons repeated three times.

At the same time, the signal at the output of processor 4 appears only if there is an allowable 11 signal at the input of processor 4, indicating that the driver-passenger 6 communication line is free from the output of key 8, the input of which is connected to the driver-passenger 6 communication line. y (- s M.A. Kutyukovoky. Office of electric power. Transport. 1987. p. 115 FIRE

Claims (1)

Fire alarm of an electric train containing sensors installed in the cars, a driver-passenger communication line and a signaling element, characterized in that it is equipped with a threshold device with a level adjuster for the magnitude of the signals from the sensors to its inputs, a programmable processor, a converting output device, and key, while the outputs of the threshold device are connected to the inputs of the processor, the output of which is connected to the input of the converting output device, and the output of the converting output device is connected It is not connected to the driver-passenger communication line, the key input being connected to the driver-passenger communication line and its output connected to the processor input, and smoke detectors are used as sensors, and the signaling element is the driver-passenger communication line loudspeaker installed in the driver’s cab .