ES2354228T3

ES2354228T3 - LAVAPLATOS WITH HEAT RECOVERY DEVICE.

Info

Publication number: ES2354228T3
Application number: ES07425574T
Authority: ES
Inventors: Andrea Ambrosi; Eros Pinaroli; Andrea Soffiati; Diego Ziviani
Original assignee: Bonferraro SpA
Current assignee: Bonferraro SpA
Priority date: 2007-09-19
Filing date: 2007-09-19
Publication date: 2011-03-11
Anticipated expiration: 2027-09-19
Also published as: PL2039281T3; ATE486516T1; EP2039281B1; EP2039281A1; DE602007010298D1

Abstract

A dishwasher includes a wash tank (T) enclosed inside an external casing (E), as well as a container (C) arranged between the wash tank (T) and the external casing (E) and operatively connected through pipings to the network water feed and the wash tank (T). The container (C), used to store the water to be used in the following wash phase, extends over at least one side of the wash tank (T) but is not in contact therewith so as to capture the heat radiated from the wash tank (T) during the wash phase without directly absorbing heat therefrom by contact.

Description

Lavaplatos con dispositivo recuperador de calor.Dishwasher with recovery device hot.

La presente invención se refiere a lavaplatos, y en particular a un lavaplatos dotado de un dispositivo de recuperación del calor disipado durante la fase de lavado.The present invention relates to dishwashers, and in particular to a dishwasher equipped with a device heat recovery dissipated during the washing phase.

Es sabido que en un lavaplatos, antes de cada fase de lavado, se carga una cantidad adecuada de agua de la red de suministro de agua, que tiene una temperatura promedio de 15ºC, que es obligada a circular a continuación por la bomba de lavado, es calentada por una resistencia eléctrica y rociada sobre las piezas de vajilla por los rociadores. Durante la fase de lavado, el agua y el depósito de lavado se encuentran calientes (hasta 70ºC) y por lo tanto tiene lugar una radiación natural de calor hacia fuera del depósito, lo que conduce al calentamiento de los lados del lavaplatos y del mueble adyacente.It is known that in a dishwasher, before each washing phase, an adequate amount of water is charged from the water network water supply, which has an average temperature of 15ºC, which it is forced to then circulate through the wash pump, it is heated by an electric resistance and sprayed on the parts of crockery by sprinklers. During the washing phase, the water and the wash tank is hot (up to 70ºC) and therefore so much a natural heat radiation takes place out of the deposit, which leads to heating of the sides of the dishwasher and adjacent furniture.

Para recuperar este calor radiado desde las paredes del depósito es conocido el disponer un recipiente sobre la parte externa del depósito a efectos de calentar la carga de agua requerida para la siguiente fase de lavado. No obstante, tampoco esta disposición impide la disipación de calor dado que el recipiente, al encontrarse en contacto directo con el depósito, alcanza rápidamente la misma temperatura que el depósito y a su vez radia calor hacia afuera. Un ejemplo de esta disposición se puede observar en el documento EP 0800785.To recover this radiated heat from the tank walls it is known to arrange a container on the external part of the tank for the purpose of heating the water load required for the next wash phase. However, neither this arrangement prevents heat dissipation since the container, when in direct contact with the deposit, quickly reaches the same temperature as the tank and in turn Radiate heat out. An example of this provision can be observe in EP 0800785.

Además, el contacto directo implica que el agua almacenada en el recipiente externo absorba inmediatamente calor tan pronto como el depósito empieza a calentarse, por lo que en la práctica, la resistencia del lavaplatos tiene que calentar no solamente el agua que se ha cargado en el depósito para la presente fase de lavado, sino también la de la fase siguiente. Esto tiene como resultado una extensión del tiempo requerido para alcanzar la temperatura prevista para el lavado, y una mayor disipación de calor desde el recipiente externo durante la fase de espera antes de utilizar el agua almacenada en su interior.In addition, direct contact implies that water stored in the outer container immediately absorb heat as soon as the deposit begins to heat up, so in the practical, the resistance of the dishwasher has to heat not only the water that has been loaded into the tank for this washing phase, but also that of the next phase. This has as a result an extension of the time required to reach the expected temperature for washing, and greater heat dissipation from the outer vessel during the waiting phase before Use the water stored inside.

Por lo tanto, el objetivo de la presente invención consiste en dar a conocer un lavaplatos que supera los inconvenientes mencionados. Este objetivo es conseguido por medio de un lavaplatos dotado de un recipiente, para el agua utilizar en la fase siguiente de lavado, dispuesto fuera del depósito de lavado y que se extiende, como mínimo, a un lado del depósito pero no en contacto con el mismo. Otras características ventajosas del presente lavaplatos se dan a conocer en las reivindicaciones dependientes.Therefore, the objective of this invention consists in disclosing a dishwasher that exceeds mentioned inconveniences. This goal is achieved through a dishwasher equipped with a container, for water use in the following washing phase, arranged outside the washing tank and which extends at least to the side of the tank but not in contact with it. Other advantageous features of Present dishwashers are disclosed in the claims Dependents

La ventaja principal de este lavaplatos procede del hecho de que el agua almacenada en el recipiente externo no es calentada por contacto con el depósito, sino solamente captando el calor radiado del mismo, de manera que no afecta la duración y consumo de la presente fase de lavado, recuperando no obstante calor que de otro modo se desperdiciaría.The main advantage of this dishwasher comes from the fact that the water stored in the outer container is not heated by contact with the tank, but only by picking up the radiated heat thereof, so that it does not affect the duration and consumption of the present washing phase, recovering however heat that otherwise would be wasted.

Otra ventaja del presente lavaplatos es que la recuperación de calor se consigue por medio de un dispositivo simple y poco oneroso, que puede ser dispuesto en espacios alrededor del depósito que de otra manera quedarían sin utilizar.Another advantage of the present dishwasher is that the heat recovery is achieved by means of a device simple and inexpensive, which can be arranged in spaces around of the deposit that would otherwise be unused.

Estas y otras ventajas y características del lavaplatos, según la presente invención, quedarán evidentes para los técnicos en la materia a partir de la siguiente descripción detallada de una realización de la misma, que hace referencia a los dibujos adjuntos, en los que:These and other advantages and characteristics of dishwasher, according to the present invention, will be apparent to technicians in the field from the following description detailed of an embodiment thereof, which refers to the attached drawings, in which:

La figura 1 es una vista frontal esquemática que muestra la disposición del recipiente externo con respecto al depósito de lavado;Figure 1 is a schematic front view that shows the arrangement of the outer container with respect to the wash tank;

La figura 2 es una vista lateral esquemática que muestra la extensión del recipiente externo con respecto al depósito de lavado; yFigure 2 is a schematic side view that shows the extension of the outer container with respect to the wash tank; Y

La figura 3 es una vista esquemática que muestra la disposición del recipiente externo entre el depósito de lavado y el descalcificador de lavado.Figure 3 is a schematic view showing the arrangement of the outer container between the wash tank and the water softener.

Con referencia a dichas figuras, se observará que un lavaplatos de acuerdo con la presente invención está dotado de un recipiente (C) dispuesto fuera del depósito de lavado (T) entre este último y el cuerpo envolvente externo (E) del aparato.With reference to these figures, it will be observed that a dishwasher according to the present invention is provided of a container (C) disposed outside the washing tank (T) between the latter and the outer shell (E) of the apparatus.

El aspecto nuevo de la presente invención reside en el hecho de que el recipiente externo (C) no está en contacto con el depósito (T), de manera que no absorbe calor del mismo por contacto. Por otra parte, el recipiente (C) se prolonga a partes laterales y de fondo del lavaplatos a efectos de obtener un recipiente de gran capacidad (8-10 litros de forma indicativa, dependiendo del espacio disponible) dentro del que se almacena agua destinada para la fase de lavado siguiente.The new aspect of the present invention resides in the fact that the outer container (C) is not in contact with the tank (T), so that it does not absorb heat from it by Contact. On the other hand, the container (C) is extended to parts side and bottom of the dishwasher to obtain a large capacity container (8-10 liters of shape indicative, depending on the available space) within which stores water destined for the next washing phase.

En la primera puesta en marcha del lavaplatos, el agua es cargada desde la red pasando por una primera conducción (P1) y después de pasar por el desaireador (A) y el descalcificador (S) pasa a través del segundo conducto (P2) para acumularse en el recipiente (C), desde el que pasa al depósito (T) por medio de la tercera conducción (P3). Desde el ciclo siguiente, el agua que entra en el depósito (T) ya no llegará directamente de la red sino que será el agua almacenada en el recipiente (C). Por lo tanto, su temperatura no será de 15ºC sino, como mínimo, de 23ºC, suponiendo dicha temperatura como valor de la temperatura ambiente, no teniendo este incremento de temperatura coste alguno.In the first start-up of the dishwasher, the water is loaded from the network through a first conduction (P1) and after going through the deaerator (A) and the water softener (S) passes through the second conduit (P2) to accumulate in the container (C), from which it passes to the tank (T) by means of the third driving (P3). From the next cycle, the water that enters the warehouse (T) will no longer arrive directly from the network but that will be the water stored in the container (C). Therefore your temperature shall not be 15ºC but at least 23ºC, assuming said temperature as a value of the ambient temperature, not having This temperature increase cost some.

Durante la fase de lavado, el agua es calentada en el depósito (T) y debido al calor de radiación del depósito, la temperatura en los espacios del lavaplatos que rodean el depósito aumenta. Este incremento de temperatura lleva al calentamiento del agua almacenada en el recipiente (C) gracias al calor que ha sido captado, que de otro modo se desperdiciaría. En la carga siguiente, el agua tendrá una temperatura superior a 23ºC, suponiendo ésta como temperatura ambiente, porque se habrá beneficiado del calor procedente del depósito.During the washing phase, the water is heated in the tank (T) and due to the heat of radiation from the tank, the temperature in the dishwasher spaces surrounding the tank increases This increase in temperature leads to heating of the water stored in the container (C) thanks to the heat that has been captured, which would otherwise be wasted. On the next load, the water will have a temperature above 23ºC, assuming this as room temperature, because it will have benefited from the heat from the deposit.

De esta manera, se conseguirá un consumo más bajo con respecto a un aparato convencional al final del ciclo, por el hecho de que en las diferentes fases el agua suministrada al depósito tiene una temperatura superior al agua de la red.In this way, you will get more consumption low with respect to a conventional apparatus at the end of the cycle, by the fact that in the different phases the water supplied to the tank has a temperature higher than the water of the network.

Es evidente que la realización que se ha mostrado y descrito del lavaplatos, según la invención, es solamente un ejemplo susceptible de diferentes modificaciones. En particular, el esquema de circuito del recipiente (C) con el resto de componentes del lavaplatos es puramente indicativo, puesto que es posible, por ejemplo, conectar el recipiente (C) más arriba del descalcificador (S) y/o del desaireador (A) conservando todavía la recuperación de energía y evidentemente las posiciones de entrada y salida del agua del recipiente (C) se pueden cambiar, de acuerdo con la disposición del aparato.It is clear that the realization that has been shown and described of the dishwasher, according to the invention, is only An example susceptible to different modifications. In particular, the circuit diagram of the vessel (C) with the rest of Dishwasher components is purely indicative, since it is it is possible, for example, to connect the container (C) above the water softener (S) and / or deaerator (A) while still maintaining the energy recovery and obviously the entry positions and water outlet from the container (C) can be changed, according with the arrangement of the device.

De manera similar, la forma y disposición precisas del recipiente (C) pueden cambiar de acuerdo con la capacidad requerida y el espacio disponible entre el depósito (T) y el cuerpo envolvente externo (E). Por ejemplo, el recipiente (C) podría incluso extenderse a varios lados del depósito (T) hasta que encerrara sustancialmente y de forma completa el mismo a efectos de hacer máxima la recuperación de calor, estando posiblemente dividido en varios recipientes separados, cada uno de los cuales alimenta el depósito (T).Similarly, the form and arrangement Precise container (C) can change according to the capacity required and the space available between the tank (T) and the outer shell (E). For example, the container (C) it could even extend to several sides of the tank (T) until will substantially and completely enclose it for the purpose of maximize heat recovery, possibly being divided in several separate containers, each of which feeds the deposit (T).

Claims

1. Dishwasher comprising a wash tank (T) enclosed within the outer shell (E), as well as at least one container (C) disposed between said wash tank (T) and said outer shell (E) and operatively connected by conduits between the mains water supply and the washing tank (T), characterized in that said at least one container (C) is not in contact with the washing tank (T) except in what Concerning the connection pipes of the same with the washing tank (T); and because it extends at least on one side of the wash tank (T) with a surface area substantially equal to the surface area of said side of the wash tank (T).

2. Dishwasher according to claim 1, characterized in that the container (C) is extended by the sides of the side and bottom of the dishwasher.

3. Dishwasher according to claim 1 or 2, characterized in that the container (C) has a minimum capacity of 8 liters.

4. Dishwasher according to one of the preceding claims, characterized in that the container (C) extends over multiple sides of the washing tank (T).

5. Dishwasher according to the preceding claim, characterized in that the container (C) substantially envelops the washing tank (T).

6. Dishwasher according to one of the preceding claims, characterized in that it comprises several separate containers (C), each of which feeds the washing tank (T).

7. Dishwasher according to one of the preceding claims, characterized in that the container (C) is disposed between a water softener (S) and the washing tank (T).