RU60463U1 - TOILET SYSTEM OF THE PASSENGER CAR - Google Patents

Abstract

The toilet system of a passenger carriage containing a water tank located under the roof of the carriage, toilets installed in toilet cabins and having devices for flushing, while at the outlet of the toilets there are devices for removing fecal waste into the storage tank with heat insulation located under the carriage, as well as a high-pressure pump and a hydraulic accumulator with an air pressure sensor in its upper part, while the input of the high-pressure pump is connected through a non-return valve to the outlet of the water tank, and its output to the entrance of the hydraulic accumulator, the output of which is connected through a controlled valve to the inlet of the toilet flush device, as well as an automatic control unit, while a high-pressure pump and a hydraulic accumulator are installed individually for each toilet bowl, and the hydraulic accumulator is made in the form of a closed cylindrical vessel with a check valve in its upper part installed vertically, the inlet and outlet of which are located in the lower part of the vessel, while inside the accumulator the inlet ends with a vertically installed tube, the end of which is located under its upper part and bent downward by an angle of more than 90 ° and the automatic control unit is connected to high-pressure pumps, controlled valves and air pressure sensors of all toilets.

Description

Technical field

The utility model relates to the sanitary equipment of vehicles and specifically to the toilet systems of passenger cars.

State of the art

Known toilet system of a passenger car [1], consisting of a water tank located under the roof of the car, toilets installed in toilet cabins, and having devices for flushing, while at the exit of the toilets there are devices for removing fecal waste into the storage tank with thermal insulation, located under the car, as well as a high-pressure pump and a hydraulic accumulator common to all toilets and a hydraulic accumulator with an air pressure sensor in its upper part, while the inlet of the high-pressure pump is connected through a non-return valve to the outlet of the water bar a, and the output is connected to the input of the accumulator, the output of which is connected to the inputs of the toilet flushing devices through a controlled valve, while the accumulator is made in the form of a vessel divided by a rubber membrane into two parts, closed air with a pressure sensor and water with an input and output in its lower parts, as well as an automatic control unit connected to a high-pressure pump, controlled valves and an accumulator air pressure sensor.

The disadvantage of this device is the lack of reliability of the entire toilet flush system, because when a high-pressure pump or hydraulic accumulator fails, the entire toilet system ceases to function, as well as different toilet flushing efficiency due to different water pressure in the hydraulic accumulator at different times, when this occurs and the difficulty of repairing the hydraulic accumulator when its rubber membrane fails.

In addition, the drawback is the direct contact of water in the water tank of the car with the entrances of the toilet flushing devices, which can lead to biological contamination of water in the water tank of the car.

Utility Model Essence

The utility model is based on the task of increasing the reliability of the toilet system and the independence of the toilet flushing efficiency from the point in time of this action, as well as eliminating water contamination in the car’s water tank from the toilet flushing devices.

The solution to this problem is achieved by the fact that in the toilet system of a passenger carriage containing a water tank located under the roof of the carriage, toilets are installed in toilet cabins and have devices for flushing, while there are devices for removing faecal waste into the storage tank at the toilet outlet with heat insulation, located under the car, as well as a high-pressure pump and a hydraulic accumulator with an air pressure sensor in its upper part, while the inlet of the high-pressure pump is connected through a non-return valve to the outlet a single tank, and its output is connected to the input of the accumulator, the output of which is connected via a controlled valve to the input of the toilet flush device, also the automatic control unit, according to the utility model, a high-pressure pump and a hydraulic accumulator are installed individually for each toilet bowl, and the hydraulic accumulator is made in the form of a closed cylindrical vessel with check valve in his

the upper part, installed vertically, the inlet and outlet of which are located in the lower part of the vessel, while inside the accumulator the input ends with a vertically installed tube, the end of which is located under its upper part and bent downward by an angle of more than 90 ° and the automatic control unit is connected to high-pressure pumps, controlled valves and air pressure sensors of all toilets.

Brief Description of the Drawing

Figure 1 presents a functional diagram of the toilet system of a passenger car.

The positions indicated:

1 - water tank;

2 - toilet bowl;

3 - device flushing the toilet 2;

4 - a device for removing fecal waste from the toilet 2 into the storage tank 5;

5 - storage tank with thermal insulation for fecal waste;

6 - high pressure pump;

7 - accumulator;

8 - check water valve;

9 - check air valve;

10 - controlled valve at the inlet of the flushing device 3 of the toilet 2;

11 - air pressure sensor in the upper part of the accumulator 9;

12 - automatic control unit.

The best option for implementation.

The toilet system of a passenger carriage comprises, a water tank 1, located under the roof of the carriage, a toilet bowl 2 installed in each toilet booth and having a flushing device 3, with an outlet

toilet 2 there are devices for removing fecal waste 4 into the storage tank 5 with heat insulation, located under the carriage, as well as individually for each toilet 2 high-pressure pump 6 and hydraulic accumulator 7, the inlet of the high-pressure pump 6 is connected through the check valve 8 to the output of the water tank 1 .

Each accumulator 7 is made in the form of a closed cylindrical vessel with a non-return air valve 9 in its upper part, mounted vertically, the inlet and outlet of which is located in the lower part of the vessel, while inside the accumulator the input ends with a vertically installed tube, the end of which is located under its upper part and bent down to an angle of more than 90 °. The accumulator 7 input is connected to the output of the high-pressure pump 6, and the output through the controlled valve 10 to the input of the toilet flushing device 3. The air pressure sensor 11 installed in the upper part of the accumulator 7, the high-pressure pump 6 and the controlled valve 10 of each toilet are connected to the automatic control unit 12.

The work of the toilet system.

At the visitor's command, the automatic control unit 12 includes a high-pressure pump 6 of the toilet bowl 2, which through the check valve 8 supplies water under pressure from the water tank 1 to the accumulator 7, compressing the air contained in it. When the specified air pressure in the accumulator 7 is reached, at the signal of its air pressure sensor 11, the automatic control unit 12 turns on the controlled valve 10 and the toilet 2 is flushed with water coming under pressure from the hydraulic accumulator 7, which ensures its intensive flushing, with fecal waste using devices for removing fecal waste 4, send the latter to the storage tank 5. After the flush is completed, the automatic control unit 12 first turns off the high-pressure pump 6, and after a certain time, until sufficient to completely drain the water from the accumulator 7 into the toilet 2 and fill the accumulator 7 with a fresh portion of atmospheric air through the air check valve 9, closes the controlled valve 10, while between the water in the water tank 1

the car and the toilet flushing device 3 an air gap is formed, while the bent end of the pipe in the accumulator 7 is always in the air.

From the above it is seen that the introduction of a set of distinctive features of the utility model improves the reliability of the toilet system of the car, while ensuring the same efficiency of flushing the toilet, regardless of the time of their use, because flushing occurs at the same water pressure at the outlet of the toilet flushing devices, and the air gap between the water in the water tank and the toilet flushing devices prevents biological contamination of water in the car’s water supply system.

In addition, the design of the accumulator is simplified, because it does not have a rubber membrane.

Industrial applicability.

Tested system layout. Working documentation is being developed.

Information sources.

"The complex of vacuum environmentally friendly toilet" EVAK-2000 R ". Operation manual TU-32-13849381-03 RE, 2004, LLC" PILLOR-EVAK ", p. 15, 16, 17, 18 fig. 5.1, 5.2 (prototype).

Claims (1)

The toilet system of a passenger carriage, containing a water tank located under the roof of the carriage, toilets installed in toilet cabins and having devices for flushing, while at the outlet of the toilets there are devices for removing fecal waste into the tank - a storage tank with heat insulation, located under the carriage, and a high-pressure pump and a hydraulic accumulator with an air pressure sensor in its upper part, while the input of the high-pressure pump is connected through a non-return valve to the outlet of the water tank, and its output to the entrance of the hydraulic accumulator, the output of which is connected through a controlled valve to the input of the toilet flush device, as well as an automatic control unit, characterized in that the high-pressure pump and hydraulic accumulator are installed individually for each toilet bowl, and the hydraulic accumulator is made in the form of a closed cylindrical vessel with a check valve in its upper part, installed vertically, the inlet and outlet of which are located in the lower part of the vessel, while inside the accumulator the inlet ends with a vertically installed tube, the end of which the second one is located under its upper part and is bent downward by an angle of more than 90 ° and the automatic control unit is connected to high-pressure pumps controlled by a valve and an air pressure sensor of all toilets.