CZ2012615A3 - Mixing device, particularly shower mixing device - Google Patents

Abstract

Mixing devices, in particular for showers, with sources of fluids of different temperatures interconnected by a supply line through a mixer with a fluid draw-off point, which is characterized in that a controlled supply line (7) is arranged between the mixer (3) and the sampling point (4). a valve (5) and a temperature sensor (9), one of the outlets of the controlled valve (5) being connected to the bypass line (13) leading to the container (6), the outlet of which is fed back into the supply line (7) or mixer (3) ).

Description

(57)

Mixing devices, especially for showers, with various temperature sources connected by a supply line via a mixer with a fluid take-off point, characterized in that a controlled connection between the mixer (3) and the take-off point (4) is included in the supply line (7). a valve (5) and a temperature sensor (9), one of the outlets of the controlled valve (5) being connected to a bypass line (13) leading to a reservoir (6), the outlet of which is routed back to the supply line (7) or mixer (3) ).

Mixing equipment, especially for showers

Technical field

The invention relates to a mixing device, in particular for showers, with fluid sources of different temperatures interconnected by a supply line via a mixer with a fluid collection point.

State of the art

Mixing of two or more fluids of different temperature together with pressure regulation handles the lever operated batteries, which offer us the possibility to adjust the pressure of the flowing fluid and the ratio of flowing hot and cold water. The thermoregulation battery allows to set the temperature and to regulate the temperature of the outgoing water by means of thermo-mechanical properties of the material. The domain of state-of-the-art bathrooms is digitally operated faucets with a choice of temperature and flow.

The long-term current trend of reducing the energy consumption of households has led to a massive expansion of shower enclosures, as we are talking about a demonstrably more economical variant of everyday hygiene compared to baths. The control interface of the human shower is reduced to two parameters. It is the regulation of outlet water temperature and outlet water flow control. These parameters are regulated in several ways in households.

Currently, lever-operated batteries are the most widely used for this application. This type of control comes with the possibility of simultaneously adjusting the flow and temperature in one lever position, but only if we guarantee constant temperature values of hot and cold water entering the shower.

Not only for applications where the constant temperature requirement is not met, there is a second variant in the form of a thermostatic faucet. Here the temperature is set using the thermo-mechanical properties of the material. Thus, the thermostatic faucet is able to cope with fluctuations in the temperature of the water entering the system and thus, among other things, the lack of the previous variant is solved.

Another minority variant is digitally operated batteries with a choice of temperature and flow. These faucets are the domain of the most modern bathrooms.

What none of the above batteries can solve is the lossless initialization of the shower process. Neither of the previous variants ensures the required leaving water temperature immediately after start-up and the water of inadequate temperature is thus drained into the waste without any benefit. There are technical solutions to address the issue of waste water recovery during showering. These are devices installed in the drainage system of shower enclosures, which can be purchased separately.

It is an object of the present invention to provide a mixer for mixing two or more fluids at different temperatures while guaranteeing the initial conditions of the desired water temperature. At the same time, water at an unsatisfactory temperature is not lost

SUMMARY OF THE INVENTION

The principle of a mixing device, in particular for showers, with different temperature fluid sources connected by a supply line through a mixer with a fluid take-off point according to the invention is that a controlled valve is provided between the water mixer of different temperatures and the water take-off point. a temperature sensor, one of the outlets of the controlled valve being connected to a bypass line leading to a reservoir, the outlet of which is led back to the supply line or mixer. A pump is inserted downstream of the reservoir in the bypass pipe, or the reservoir is provided with a pressure chamber separated from the inner space of the reservoir by a movable or flexible wall. The tank is equipped with an overflow or overflow valve. The temperature sensor is represented by a two-state sensor.

Description of the drawings

The accompanying drawings show schematically a mixing device according to the invention, wherein the giant and 2 show two alternatives of the mixing device and Figures B to 5 show an alternative bypass line guide.

DETAILED DESCRIPTION OF THE INVENTION

As can be seen in Fig. 1, hot and cold water is supplied from line 7 from the hot water source 1 - labeled T, and from the cold water source 2, labeled S, by means of line 7. via a temperature sensor 9 and a controlled valve 5 to a sampling point 4, for example a shower. If the water supplied to the draw-off point 4 does not have the desired temperature monitored by the temperature sensor 9, the controlled valve 5 closes the water inlet to the draw-off point 4 based on the signal 14 from the temperature sensor 9 and opens its flow through the bypass line 13 to the tank. water, the controlled valve 5, based on the signal 14 from the temperature sensor 9, opens the water flow at the desired temperature to the tapping point 4 and closes the water flow to the reservoir 6.

The water accumulated in the reservoir 6 until then is withdrawn from the reservoir 6 by means of a pump 8 and transported back to the pipeline 7 or mixer 3 to gradually mix with the water from the hot and cold water source. Thus, the tank 6 is gradually emptied. The amount of water flow from the tank 6 is determined with a view to avoiding a strong influence on the temperature of the water supplied from the mixer 3 to the abstraction point 4. In the case of large amounts of water introduced into the tank 6 overflow 11 from the system.

In the embodiment of FIG. 2, the water circuit from the controlled valve 5 to the reservoir 6 and back to the conduit 7 or mixer 3 is arranged such that a pressure chamber 10 is provided in the reservoir part 6. The reservoir part 6 where water is supplied from the guided valve 5 is separated from the pressure chamber 10 by a movable or flexible wall. By inflowing water into the reservoir 6, the pressure in the pressure is increased

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chamber 10 and consequently the water is subsequently pushed back into the conduit 7 or mixer 3. In the case of a large amount of water which is fed to the reservoir 6, a part of it is discharged from the system by the overflow valve 12 which is switched on by the pressure in the reservoir 6 .

Figures 3 to 5 show various variants of water drainage from the reservoir 6. In Fig. 3, water is supplied from the reservoir 6 to the mixer 3, similar to Fig. 1. The embodiment of Fig. 3 differs from the embodiment of Fig. 1 in FIG. in that instead of conveying water through the pump 8, the ejection effect of the water stream in the mixer 3 is used.

Fig. 4 shows an embodiment where water is supplied from the reservoir 6 upstream of the mixer 3 by means of a pump 8. The use of the pump 8 could be replaced by using the pressure vessel 10 of Fig. 2.

FIG. 5 shows an embodiment where water is supplied from the reservoir 6 behind the agitator 3 by means of a pump 8. Again, the use of the pump could be replaced by the use of the pressure vessel 10 of FIG. 2.

It is also possible within the scope of the invention to provide an embodiment in which a pump 8 and a reservoir 6 with a pressure chamber 10 are used simultaneously.

The temperature sensor 9 may be a sensor with a continuous temperature signal or preferably only a two-state sensor providing information whether the temperature is below or above a given limit.

The device according to the invention can advantageously be controlled by a computer.

But it can also work without a computer and external power source. This is possible, for example, in the embodiment of FIG. 2, where a controlled temperature-controlled expansion valve 5 would be used from the temperature sensor 9 and the reservoir 6 with the pressure chamber 10.

The invention can be used to achieve comfort and savings benefits not only in the case of mixing two fluids, but also in the case of multiple fluids.

Claims (5)

Patent claims Mixing device, in particular for showers, with fluid sources of different temperatures interconnected by a supply line through a mixer with a fluid take-off point, characterized in that a controlled valve is provided between the mixer (3) and the take-off point (4) (5) and a temperature sensor (9), one of the outlets of the controlled valve (5) being connected to a bypass line (13) leading to a reservoir (6), the outlet of which is routed back to the supply line (7) or mixer (3) . Mixing device of two or more fluids according to claim 1, characterized in that a pump (8) is inserted downstream of the reservoir (6) in the bypass line (13). Mixing device of two or more fluids according to one of the preceding claims, characterized in that the container (6) is provided with a pressure chamber (10) separated from the interior of the container (6) by a movable or flexible wall. Mixing device for two or more fluids according to one of the preceding claims, characterized in that the reservoir (6) is provided with an overflow (11) or an overflow valve (12). Mixing device of two or more fluids according to one of the preceding claims, characterized in that the temperature sensor (9) is a two-state sensor.