RU2267422C2 - Passenger car water filling system - Google Patents

Abstract

FIELD: railway transport; passenger cars.

SUBSTANCE: proposed water filling system of passenger car has service tank 1 filled with water through supply pipeline, coarse devices 11 and 12 filling columns, system of pipelines providing water feeding to hot-water heater 4 vacuum toilets and replenishment of heating system, and water level regulators in service tank and in hot-water heater 4. Device for coarse cleaning of water is provided with pipe holes in side wall and with stopper, and heated casing inside detachable coarse filtering element is installed, being part of said pipe, with holes of small diameter in side wall. Summary area of holes is either equal to or greater than area of pipe cross section.

EFFECT: increased efficiency.

2 cl, 2 dwg

Description

The invention relates to life support systems for passenger cars, in particular providing them with water, and can be used in water purification systems from mechanical impurities.

The well-known "Water-filling system for a passenger car", protected by patent RU No. 2250170, IPC 7 В 61 К 11/00, published on 04/20/2005. Bull. No. 11. It contains a receiving tank mounted in the upper part of the body, with a float valve fixed inside in a fixed casing, a water spill line for household needs of passengers and fire fighting. In this technical solution there is no device for purifying water from mechanical impurities, which should be attributed to a significant drawback, especially in cases where water enters the tank through the station's water supply system equipped with water towers.

The prototype is the water supply system for passenger cars according to the book by L. Shadur Wagons. M .: Transport, 1973, pp. 404-406. The system contains a supply tank filled with water through a filling pipe, a coarse cleaning device, a system of pipelines that deliver water to the boiler, vacuum toilets and replenishment of the heating system, water level regulators in the supply tank and boiler. The disadvantages of the prototype include the lack of a rough cleaning device removable filter element, as well as a fine filter. This leads to an increase in the time for maintenance of the filter elements and does not allow to achieve a high degree of purification, which prematurely destroys the components of the system (boiler, vacuum toilet, etc.).

The aim of the invention is: ensuring the uninterrupted operation of the water supply system of a passenger car, increasing the service life of the system nodes, as well as reducing the time for its maintenance.

This goal is achieved by the fact that at each inlet pipe in the heated zone of the system, a coarse water purification device is installed with a removable filter element, followed by a fine filter.

The essence of the invention lies in the fact that the device for rough water treatment, located in the heated zone, does not freeze, and its filter elements are removable and accessible for dismantling and cleaning.

The technical result achieved by using the invention is that the uninterrupted operation of the water supply systems of the passenger car is ensured, and the maintenance periods of the filter elements and the time for their cleaning are reduced.

The invention is illustrated by drawings, where:

figure 1 shows a diagram of a system for refueling a water passenger car;

figure 2 shows a device for rough water treatment.

The passenger car’s refueling system includes a supply tank 1 (Fig. 1), which contains the main water supply, a float valve 2, a shut-off valve 3, a boiler 4 with a filter settler 5 and a regulator 6 for the water level in the boiler, non-return valves 7 alternately one of the filling pipelines 8 during the refueling period, the connecting heads 9 and 10, the device 11 and 12 for rough water purification, the filter 13 for fine water purification, the filling pipe 14, the overflow pipe 15 and the vacuum toilet 16.

The coarse water purification device includes a pipe 17 (figure 2), in the lower part of which a connecting head 9 or 10 is installed, and in the upper part of the pipe 17 there are openings, the total area of which must be equal to or greater than the cross-sectional area of this pipe 17, and a plug 18 is installed at its end; a removable filter element 20 for coarse water treatment is installed inside the heated housing 19. The filter element is a part of the pipe 17 with holes in the side wall of small diameter, the total area of which is equal to or greater than the cross-sectional area of the pipe 17.

The water supply system for passenger cars works this way. Water from the pumping station (filling stations) enters the supply tank 1 of the car through the connecting heads 9 or 10, the radial holes of the pipe 17, the cavity of the housing 19, the holes of the element 20, the check valve 7, the fine filter 13, the shut-off valve 3, the filling pipe 14 Upon reaching the maximum water level in the supply tank 1, the float valve 2 gives a command pulse to the shut-off valve 3, which shuts off the water supply to the system. In case of breakage of the shutoff and float valves 2 and 3, an overflow pipe 15 is installed in the supply tank 1.

During the operation of the passenger car, the stock of purified water in the supply tank 1 is used to replenish the boiler 4, drain the vacuum toilet 16, provide cold water to the washbasin and the sink, as well as replenish the heating system.

The technical result achieved by using the invention lies in the fact that between scheduled maintenance of coarse water treatment devices with valves and fine filters, the water intake and consumption systems work uninterruptedly.

Claims (2)

1. The passenger car’s water refueling system, comprising a consumable tank filled with water through a filling pipe, a coarse cleaning device and refueling columns, a piping system for delivering water to the boiler, vacuum toilets and replenishment of the heating system, water level regulators in the supply tank and boiler, characterized in that the device for rough water treatment includes a water supply pipe with holes in the side wall and with a plug and a heated housing, inside of which is installed Removable prefilter element representing a portion of said tube with small diameter holes in the side wall, the total area of which is equal to or greater than the cross sectional area of the tube. 2. The passenger carriage water filling system, characterized in that a fine filter is sequentially installed behind the coarse cleaning device.

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