RU38318U1 - HEATING AND VENTILATION SYSTEM FOR RAIL VEHICLES - Google Patents

Description

Rail heating and ventilation system

Vehicle

The utility model relates to the equipment of rail vehicles that provide comfortable travel conditions in the passenger cabins of ground metro cars.

The heating and ventilation system of the electric trains of the 481/482 series for the Berlin city railroad is known, which contains air intakes connected through reversible fans to ceiling air ducts and through air heaters with air ducts located on both sides of the doorways and connected to floor air ducts (see “Electric train of the 481 series / 482 journal “World Railways, 1998, No. 5, p. 12).

This system does not provide the necessary performance of the ventilation mode, since the intake of external air is carried out due to rarefaction of air inside the cabin.

The closest to the proposed utility model for the combination of essential features is a heating and ventilation system for interiors of rail vehicles, containing ceiling and vertical ducts located on both sides of the doorways and connected to floor ducts, filters and fan heaters (see patent DE No. 19654633, 6 B61D 27/00, 1996).

This system, due to the location of the intake device and the mixing chamber of outdoor air on the roof of the car, does not fit into the dimensions of the subway tunnels, in addition, the placement of horizontal air ducts on the cabin ceiling reduces its height.

7 V6ID 27/00

The technical result in the implementation of the utility model is to reduce the external dimensions of the car and increase the internal dimensions of the salons.

The specified technical result is achieved in that the heating and ventilation system of interiors of rail vehicles, comprising ceiling ducts and vertical ducts located on both sides of the doorways and connected to floor ducts, filters and fan heaters, is equipped with devices for changing the direction of air movement located above the doorways of the side walls of the salons, used to pump air into the ceiling and floor ducts and containing a drive for emescheniya dampers located in one plane and pairwise interconnected, wherein the device for changing the direction of air flow, fans and filters installed at the connection points of the ceiling and the side walls of the carriage.

In addition, the heating and ventilation system of the salons is equipped with guides for uniform air supply, made in the form of a curved profile plate located in the air supply zones.

The invention is illustrated by drawings.

In FIG. 1 shows a system for heating and ventilation, a general view; in FIG. 2 - also, a top view; in FIG. 3 - section aa in figure 2; in FIG. 4 - section BB in figure 2; in FIG. 5 is a view B in FIG. 3; in FIG. 6 - remote element G in FIG. 3.

S.

each section at the junction of the ceiling and the side walls of the car, filters 3, to which fan heaters 4 and devices 5 for changing the direction of air movement, used to pump cold air into the central ceiling ducts 6 and heated air into the floor ducts 7 are successively connected through vertical ducts 8 and controlled remotely from the driver’s cab.

Devices 5 for switching the direction of air movement, mounted above the doorways, are made in the form of an air duct 9 with dispensing nozzles 10 for directing the movement of air into the air ducts 6 and distributing nozzles 11 for directing the movement of air into the air ducts 7, two shutters 12 and two shutters 13 located inside each pipe 10, 11 and installed on the lower shaft 14 and upper shaft 15, respectively, which are interconnected by a chain gear 16, an electromechanical actuator 17 for moving the shutters, rigidly connected connected with the lower shaft 14, and the sensor block 18 with two positions of the dampers corresponding to the operating modes: Ventilation and Heating. All shutters 12, 13, regardless of the operating mode, are always located in the same plane. The duct 9 is equipped with a throttling washer 19 for equalizing the air speeds of the vertical ducts 8.

Filters 3, including recirculation grilles, are connected to the grilles 20 of the external air intake located above the central side windows of the carriage sections 1, 2.

Inside the ceiling duct 6 in the air supply zones, guides 21 are installed for uniform air supply through the perforated surface of the duct 6 along the entire length of the cabin, made in the form of a curved profile plate, rigidly attached to the duct 6.

Each floor air duct 7 is located under the seats for passengers and is connected to a vertical duct 8, and for the supply of air along the entire length of the duct 7, a slotted hole 22 is made, the width of which is regulated by the shutter 23.

Vertical ducts 8 are located on both sides of the doorways of the side surfaces of the salons of the car.

To regulate the air temperature in the salons, the heating and ventilation system contains a control device consisting of a heating and ventilation control unit 24, a heating contactor unit 25 and air temperature sensors 26, while the unit 24 and unit 25 are installed under the wagon section 2, and the sensors 26 are located in the salons of sections 1, 2 cars.

The heating and ventilation system operates as follows.

When transporting passengers, depending on the outdoor temperature, the driver switches the system into Ventilation or Heating mode.

In the Ventilation mode, the control unit 24 includes devices 5 for changing the direction of air movement, opening the dampers 12 and closing the dampers 13, while the fan heaters 4 supply outside air without heating through the filters 3, the distributing nozzles 10 into the ceiling ducts 6, which enters through the perforations Salon of the car.

In the Heating mode, the control unit 24 includes devices 5 for changing the direction of air movement and a block of heating contactors 25, as a result of which the outside air passing through the fan heaters is heated. In this case, the flaps 12 are closed, the flaps 13 are open and the heated air comes from devices 5 for changing the direction of air movement through the vertical ducts 8

floor ducts 7 and rises through slotted holes 22 into the salons of the car.

In the Heating mode, the temperature in the range of 15-20 ° C is automatically maintained.

Claims (2)

1. The heating and ventilation system of interiors of rail vehicles, containing ceiling ducts and vertical ducts located on both sides of the doorways and connected to the floor ducts, filters and fan heaters, characterized in that it is equipped with devices for changing the direction of air movement located above the door openings of the side walls of the salons involved for forcing air into the ceiling and floor ducts and containing an actuator for moving the shutters, located married in the same plane and pairwise interconnected, while devices for changing the direction of air movement, fans and filters are installed at the junction of the ceiling and side walls of the car. 2. The heating and ventilation system of the salons according to claim 1, characterized in that it is provided with guides for uniform air supply made in the form of a curved profile plate located in the air supply zones.