DE102022000287A1 - WC pressure flush system - Google Patents

Abstract

The invention relates to a toilet pressure flushing system that can be used anywhere in place of conventional flushing cisterns, regardless of the line cross-sections of the domestic water networks and other network parameters, and can significantly reduce flushing water consumption.

Description

State of the art

Pressure flush valves have a number of advantages over cisterns. You need up to 50% less water to remove excretions from the toilet bowl, with the increased water pressure being an advantage both when removing and removing residues that are stuck.

Other advantages compared to cisterns are their robust, hygienic design, their low risk of leaks, which can lead to very high water consumption, as well as accumulations of lime, dirt particles and bacteria, and lower installation and maintenance costs.

A major disadvantage of flush valves is the required high volume flow in the water inlet, which can lead to harmful pressure drops in the drinking water networks inside the building.

For this reason, some water suppliers only approve flush valves in exceptional cases, and cisterns for toilet flushing that do not overload the drinking water network in the building are mainly installed in areas of single and multi-family houses.

If flush valves are installed, pressure surges can also occur in the domestic water network, which is associated with unpleasant noise.

A high water-saving potential, which statistically amounts to 120 liters per day for a 3-person household just for flushing the toilet with a cistern and could be reduced to 60 liters with a flush valve, is not used.

object of the invention

The object of the invention is to create a toilet pressure flushing system that reliably prevents pressure drops in the domestic water networks and, during its manually triggered activation, is intended to ensure a sufficient amount of flushing water for the safe removal of excretions and removal of buildup under the highest possible water pressure in accordance with the network conditions.
Due to these properties, the toilet pressure flushing system according to the invention should be able to be used anywhere in place of conventional flushing cisterns, regardless of the line cross-sections of the domestic water networks and other network parameters, and significantly reduce flushing water consumption.
In addition to reliably preventing pressure surges in the domestic water network, further tasks should be compliance with the dimensions and costs of the pressure flushing system in the context of conventional flushing cisterns.

The functional principle and the structure of the toilet pressure flushing system are described with the inventive features of the 1st claim. Advantageous extensions and refinements are the subject matter of the dependent claims.

• 1 den Querschnitt des WC- Druckspülsystems mit maximaler Menge Spülwasser 5, angeschlossen an das Hauswassernetz 6 zur Verdeutlichung des Zusammenspiels der Komponenten.
• 2 den Querschnitt des WC- Druckspülsystems mit maximaler Menge Spülwasser 5, angeschlossen an das Hauswassernetz 6, im Moment der Betätigung der Starttaste 9.
• 3 den Querschnitt des WC- Druckspülsystems, angeschlossen an das Hauswassernetz 6, im Moment der maximalen Entleerung des Spülwassers 5 nach erfolgtem Spülvorgang.

Show it:

• 1 the cross-section of the toilet pressure flushing system with the maximum amount of flushing water 5, connected to the domestic water network 6 to illustrate the interaction of the components.
• 2 the cross-section of the toilet pressure flush system with the maximum amount of flushing water 5, connected to the domestic water network 6, at the moment the start button 9 is pressed.
• 3 the cross-section of the toilet pressure flushing system, connected to the domestic water network 6, at the moment of maximum emptying of the flushing water 5 after the flushing process.

In 1 the internal structure of the toilet pressure flushing system in flushing readiness when the start button 9 is not actuated with the maximum stored amount of flushing water 5 can be seen, in which a likewise cuboid pressure vessel 2 is fastened within a cuboid housing 1, which is connected via two pipelines 10 to a water valve 8 mechanically coupled to the start button 9 and to the domestic water network 6 via a non-return valve with flow rate limiter 7 and on the upper inner surface of which is a self-contained with a form acted upon rubber bellows 3, for example a cuboid bellows, is attached by means of fasteners 4, wherein the folded rubber bellows 3 is under the maximum possible pressure of the domestic water network 6 and the flush pipe 11 is unfilled.

In 2 the cross section of the toilet pressure flushing system with the maximum stored amount of flushing water 5, connected to the domestic water network 6, is shown at the moment when the start button 9 is manually actuated, with the open water valve 8 mechanically coupled with the actuated start button 9 directing flushing water 5 under network pressure into the flushing pipe 11, which transports away excretions and buildup in the toilet bowl with a high initial dynamic, this process with decreasing pressure, but sufficient for the flushing process, when the rubber bellows 3 relaxes long enough for the water valve 8 to shut off automatically or manually by releasing the start button 9 is closed again, while the pressure vessel 2 is permanently connected to the domestic water network 6 by means of a pipeline 10 via a non-return valve with flow rate limiter 7, which is set in such a way that only a volume flow into the pressure vessel 2 that is unproblematic for the domestic water network 6 can take place.

In 3 the cross section of the toilet pressure flushing system, connected to the domestic water network 6, is shown at the moment of maximum emptying of the flushing water 5 in the pressure tank 2 after the flushing process has taken place, with the rubber bellows 3, which has been subjected to a preliminary pressure, having reached its maximum expansion, while the water valve 8 is closed and at the same time the refilling of the pressure tank 2 with flushing water via the non-return valve connected to the domestic water network 6 with flow rate limiter 7 with a volume flow that uses the domestic water network 6 not charged.

Reference List

1

enclosure

2

pressure vessel

3

rubber bellows

4

fastener

5

rinse water

6

domestic water network

7

Check valve with flow rate limitation

8th

water valve

9

start button

10

pipeline

11

flush pipe

12

filling valve

Claims (4)

WC pressure flushing systemcharacterizedthat within a cuboid housing (1) a likewise cuboid pressure vessel (2) is fastened, which is connected via two pipes (10) on the one hand to a water valve (8) mechanically coupled to the start button (9) and on the other hand via a non-return valve with flow rate limiter (7) to the domestic water supply system (6) and on its upper inner surface a self-contained rubber bellows (3) which is pressurized, for example a cuboid bellows, by means of fastening elements (4), the rubber bellows (3) being compressed by the flushing water (5) flowing into the pressure vessel (2) via the domestic water network (6) and the non-return valve with flow rate limitation (7) for so long that the air pressure culminating in the rubber bellows (3) is identical to the maximum pressure of the domestic water network (6), whereby the inflow of flushing water (5) is stopped and the toilet pressure flushing system according to the invention is ready for a further flushing process which can be operated manually the start button (9) is triggered, whereby the opened water valve (8), which is mechanically coupled to the activated start button (9), directs flushing water (5) under mains pressure into the flushing pipe (11), which transports away excretions and deposits in the toilet bowl with high initial dynamics, this process continuing with decreasing pressure, but sufficient for the flushing process, with the relaxing rubber bellows (3) until the water valve (8) is closed again automatically or manually by releasing the start button (9), while the pressure tank 2 is permanently connected to the domestic water network (6) by means of a pipeline (10) via a non-return valve with flow rate limiter (7), which is set so that only a volume flow into the pressure tank (2) that is unproblematic for the domestic water network 6 takes place, which lasts until the culminating air pressure in the rubber bellows (3) stops the inflow and the toilet pressure flushing system for the next cycle, in the sequence flushing - filling - flushing - filling and so on , is ready. WC pressure flushing system claim 1 characterized in that the water valve (8), depending on the embodiment, either closes automatically via the coupled start button (9) after a preset time or opens as long as the start button (9) remains manually operated. WC pressure flushing system claims 1 and 2 characterized in that the water valve (8) with the coupled start button (9) can be positioned both inside and outside of the housing (1), with commercial flush valves being able to be used for external positioning. WC pressure flushing system claims 1 characterized in that the rubber bellows (3) is pressurized with a gas, for example nitrogen, which reduces diffusion through the rubber wall with subsequent pressure loss, with a filling valve (12) on the surface of the rubber bellows (3) enabling the initial pressure of the rubber bellows (3) to be adapted to the conditions of the domestic water network (6).

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