Heat exchangers in modern dishwashers

When buying a dishwashing machine, sometimes there are questions regarding some of its options or design features. In particular, why do you need a heat exchanger in a dishwasher, is it important and what is it? We will try to give detailed answers in this article.

What is it for

The main purpose of this unit in any modern “dishwasher” is to prevent a sharp temperature drop in the washing chamber. Such conditions are necessary so that a network of microcracks does not form on the surface of the outer layer of dishes, which accelerates the aging of kitchen utensils and leads to an early loss of its presentable appearance.

The heat exchanger in the dishwasher is also a necessary structural element,Another important component of the equipment that protects against negative thermal effects is the ion-exchange unit.

How it works

Consider the whole process of the machine in more detail:

1. The machine turns on. Water, passing through the cleaning filters, begins to fill the main tank.
2. After the water level reaches a certain point, the flow stops and the heating element comes into effect. Depending on the values ​​that were set by the program, the water is heated to the set temperature.
3. The main process of dishwashing begins. Under pressure, which creates a circulation pump, hot water from the tank begins to spray in the washing chamber of the machine. When this occurs, the primary removal of dirt from dishes.
4. All the water from the washing chamber gets into a special pan to accumulate there to warm up the cold water in the heat exchanger. At this time, fresh hot water is sprayed onto the dishes, finally washing away all the dirt from it.
5. The water accumulated in the pan, is filtered and fed back into the main tank. Thus, the process is repeated, carrying out a complete closed-loop washing.
6. In conclusion, the machine rinsing and drying dishes. At this last stage, the heat exchanger maintains a constant temperature in the chamber until the dishes are completely dry.

Pros during operation

Modern household equipment is being improved every year. And today, almost every new dishwashing machine is equipped with a heat exchanger. What other advantages does this technique have?

1. Throughout the process, the heat exchanger heats the cold water from the tank, thereby eliminating the constant operation of the main heating element in the maximum mode. Such a limitation extends the service life of the heater and significantly reduces energy costs.
2. Machines with heat exchangers provide not only high-quality dishwashing, but also its high-quality drying. As a rule, dishes in such machines dries twice as fast.
3. Heat exchanger provides uniform cooling of waste water. Therefore, it’s not boiling water that can damage plastic pipes, but hot water of normal temperature does not drain into the sewage system.

Conclusion

Dishwashers with heat exchangers, with a noticeable difference in cost, differ from ordinary ones with greater durability and cost effectiveness. So, when buying this type of equipment, you need to consider what is more important for you when using it - quality, reliability or money?