Heat exchanger in a dishwasher: what is it and what is it for?

creativecommons.org

When buying a dishwasher, many often ask the question: what options should a good device have? Without a doubt, one of the most important design features in a dishwasher is the heat exchanger. Heat exchangers have recently appeared in dishwashers. After the introduction of this function into the production of washing machines, the productivity of the equipment and the efficiency of washing dishes increased significantly. The heat exchanger allows you to not only reduce water consumption, but also electricity, which will provide significant budget savings. What is a heat exchanger?

A heat exchanger is a container that has flat and wide dimensions and resembles a flask in appearance. The heat exchanger is built inside the dishwasher. The device is adjacent to the washing unit. The heat exchanger bowl contains cold water, which enters there as soon as the washing process starts. The water is pre-heated by a heating element. Then, during the washing process, water enters the heat exchanger bowl along the inner walls. Thus, the water in the bowl is heated from the incoming heat without the consumption of electricity.

The heat exchanger performs an accumulating function, as it uses the already accumulated heat, with the help of which the water for washing is heated. We can say that the savings are almost doubled, since thanks to the heat exchanger you can use the accumulated heat twice.

At the end of washing the dishes, water from the heat exchanger is supplied for rinsing.If, as a result of one cycle, the sensors determine that the dishes should be washed again, then the accumulated water is supplied to a new washing cycle. One can only dream of such savings! Fortunately, this is a reality that almost every dishwasher model is equipped with.

creativecommons.org

What functions does the heat exchanger perform in a dishwasher: principle of operation, overview and characteristics, advantages

In this section, we will consider in more detail the principle of operation of the heat exchanger and its functions, as well as the advantages of use.

As already mentioned, the heat exchanger is a special part that improves the energy efficiency of the device. This is its main function.

In addition, the heat exchanger allows you to reduce the temperature of the water, preventing the dishwasher from overheating.

Another important function that the heat exchanger performs is protecting pipes from excessively hot water. Let us consider step by step how the mechanism of operation of the heat exchanger works:

1. Water is poured into a special container of the machine.
2. The heating element heats the water.
3. The dishwashing process is in progress.
4. Already heated water falls to the bottom, providing heat exchange.
5. Next, the water enters a special reservoir, and then, under the action of a pump, back into the container. This happens several times depending on the washing mode.
6. Thus, the heat exchanger manages to accumulate a decent amount of heat in just one washing cycle.

Advantages of the heat exchanger:

1. During the washing process, the water cools quite slowly, which allows you to wash dishes made of fragile materials.
2. Thanks to this mechanism, a more careful attitude towards the elements of the dishwasher during operation occurs due to smooth temperature changes.
3. The heat exchanger perfectly “supports” the drying function. The condensation accumulated at the bottom ensures that the dishes are dry and streak-free. Thus, the dishes dry twice as fast.

In conclusion, we can say that dishwashers with a heat exchanger are much more durable and economical to use than conventional models. These criteria are decisive when purchasing household appliances.