RU97317U1 - VENTILATION SYSTEM OF THE COUPE OF A PASSENGER CAR - Google Patents

Abstract

The objective of the utility model is the ventilation system of a passenger car compartment, which is part of a two-channel ventilation and air conditioning system, containing air supply channels (2), air intake channels (3) into the recirculation channel (4), which creates a single increased level of comfort for each passenger compartment with using horizontal air supply in the compartment in the direction natural for the passenger, deep mixing of the air and equalizing its temperature throughout the compartment without the formation of stagnant zones. Due to the location of the outlets of the supply and intake air channels on the compartment walls in the space between the end surfaces of the berths and, accordingly, the window and the door, there is no discomfort for passengers during the operation of the ventilation system, and an increased level of sound insulation and passenger safety is achieved due to the absence of ventilation openings in compartment doors. 2 ill.

Description

The utility model relates to railway transport and more specifically to ventilation devices for passenger cars.

A known ventilation system of passenger cars that are not equipped with an air cooling system, the air exchange in which occurs as a result of natural ventilation or forced mechanical. Natural ventilation is via ceiling deflectors. The action of the deflector is based on the rarefaction created inside it under the influence of the incoming air flow when the train moves or when the wind is stationary while the car is stationary, which causes air draft from the car. This deflector is installed on all passenger cars currently under construction.

Passenger cars of all types are equipped with a system of supply and exhaust ventilation, forcibly supplying air to the car. The supply and exhaust ventilation system is located between the roof and the ceiling of the car and consists of ventilation grilles for intake of outdoor air, filters, a ventilation unit, a diffuser, an air heater (plate water or electric), a confuser and an air duct. The air from the duct enters the compartment through the adjustable ventilation grilles in the ceiling, which are factory-set so as to ensure uniform distribution of ventilation air along the length of the car.

The ventilation systems of other passenger cars of domestic production are made similar to the above. (WAGONS. Edited by L.D. KUZMICH, M., "MECHANICAL ENGINEERING", 1978, pp. 274-277 - prototype).

A drawback of the passenger car air ventilation systems used is the impossibility of creating uniform comfort conditions (microclimate) in a separate compartment of a passenger car for each passenger. This is due to the fact that air is supplied through the ceiling deflectors vertically downwards in an uncomfortable (unnatural) direction for a person. This significantly increases the risk of colds or exacerbation of chronic diseases (primarily rhinitis, pharyngitis, laryngitis, bronchitis, cystitis, herpes, etc.), especially for passengers on the upper shelves of the compartment, where air mobility is high and the temperature is 2- 3 ° C lower than in the rest of the room.

In this case, excess air is discharged from the compartment through the ventilation openings in the front door, which impairs sound insulation and reduces the level of passenger safety.

The problem solved by the claimed utility model is the creation of uniform climatic conditions of increased comfort for each passenger compartment of a passenger car.

The solution to this problem is achieved by the fact that in the claimed ventilation system of a compartment of a passenger carriage, which is part of a two-channel ventilation and air conditioning system containing air supply channels, air intake channels to the recirculation channel, unlike the prototype, the output of the air supply and intake channels is located on the walls compartment in the space between the end surfaces of the berths and, accordingly, the window and the door.

Air through the air supply channels in the horizontal direction parallel to the sleeping places at two levels moves from the window to the door to the air intake channels, and the excess air from the air intake channels located in the compartment walls is fed back through the recirculation channel to the recirculation system.

A possible constructive implementation of the utility model is schematically presented in the accompanying drawings.

Figure 1 - presents a ventilation scheme of a passenger car.

Figure 2 is a diagram of the movement of air in a compartment in a top view.

The ventilation system of a compartment of a passenger carriage, which is part of a two-channel ventilation and air conditioning system (1), consists of air supply channels (2), air intake channels (3) to the recirculation channel (4).

The ventilation system of a compartment of a passenger car operates as follows. Air from a two-channel ventilation and air conditioning system is supplied to the air supply channels, the outlet of which is located on the walls of the compartment in the space between the end surfaces of the berths and the window on the upper and lower tiers on each side of the compartment. Then the air in the horizontal direction parallel to the berths (5) at two levels moves from the window to the door to the air intake channels, the outlet of which is located on the walls of the compartment in the space between the end surfaces of the berths and the door. After that, the excess air through the recirculation channel is fed back to the recirculation system.

Thus, the task is achieved thanks to the horizontal air supply system in the direction natural for the passenger, which provides deep mixing of the air and equalization of its temperature throughout the compartment without the formation of stagnant zones. At the same time, the outlets of the air supply and intake channels are located on the walls of the compartment in the space between the end surfaces of the berths and, accordingly, the window and the door, which ensures that passengers are not discomfort during the operation of the ventilation system, and an increased level of sound insulation and passenger safety is achieved due to the absence of ventilation openings at the door of the compartment.

The well-known ventilation system can be used both independently and in combination with the air conditioning and heating system of the car.

Claims (1)

Passenger car compartment ventilation system, which is part of a two-channel ventilation and air conditioning system, containing air supply channels, air intake channels to the recirculation channel, characterized in that the outlet and air intake channels are located on the walls of the compartment in the space between the end surfaces of the berths and window and door respectively.