The principle of operation of the dishwasher. How the device works from the inside: video


Dish­wash­ers, like wash­ing machines, make life eas­i­er for many women, as wash­ing dish­es takes a huge amount of time. The tech­nique with­out any extra effort will be able to do all the work quick­ly, wash­ing the dish­es to a shine. Con­sid­er the prin­ci­ple of oper­a­tion of the dish­wash­er and its device.

Dishwasher control buttons

Dishwasher operation

How does a dishwasher work?

To under­stand how a dish­wash­er works inside, you need to know how it works. The fig­ures first show all the vis­i­ble com­po­nents of the dish­wash­er, then its inter­nal struc­ture.

  1. Water sup­ply hose.
  2. Hose with con­trol of water sup­ply.
  3. Sole­noid valve.
  4. Built-in mag­net.
  5. Air out­let.
  6. Capac­i­tor.
  7. Salt regen­er­a­tor.
  8. Salt con­tain­er.
  9. Resin con­tain­er.
  10. Pres­sure switch.
  11. Over­fill pro­tec­tion for relays.
  12. Pal­let.
  13. Cir­cu­la­tion pump.
  14. TEN.
  15. Drainage pump.
  16. Reverse valve.
  17. Water out­let hose.
  18. Fan.

How does a dish­wash­er work from the inside? The whole process from start to fin­ish is con­trolled by an elec­tron­ic board, thanks to built-in sen­sors that con­trol the lev­el and tem­per­a­ture of water and air, the degree of clean­li­ness of dish­es. The machine per­forms the entire process accu­rate­ly and very high qual­i­ty. When you select a spe­cif­ic pro­gram using the con­trol but­tons, the water sup­ply valve opens and the desired vol­ume is col­lect­ed. After that, the water becomes soft­er, pass­ing through the resin con­tain­er, and with the help of a heat­ing ele­ment, it is heat­ed to the desired tem­per­a­ture. The cir­cu­la­tion pump cre­ates pres­sure and sprays water onto the plates. Drainage is car­ried out using a drainage pump.

Of course, in mod­els from dif­fer­ent man­u­fac­tur­ers (Bosh, Siemens), the device itself may dif­fer slight­ly, but basi­cal­ly the prin­ci­ple of oper­a­tion of dish­wash­ers is the same for every­one.

All mod­ern machines have an ion exchang­er to soft­en the water, which absorbs all the salts, which ensures a more thor­ough clean­ing of dirty dish­es.

The video shows a dish­wash­er while wash­ing dish­es.

The algo­rithm of work is very sim­ple:

  1. After all the dirty dish­es are placed in a spe­cial com­part­ment, the deter­gent is poured in and the pro­gram is select­ed, the process starts.
  2. The required vol­ume of water is col­lect­ed through a hose and a sole­noid valve.
  3. Water is heat­ed with a heat­ing ele­ment to the desired tem­per­a­ture.
  4. The right amount of deter­gent is col­lect­ed at dif­fer­ent times at the time of wash­ing. After that, soapy water is sprayed from above and below onto the plates, thanks to the oper­a­tion of the pump, a strong jet is cre­at­ed, which sim­ply knocks all the dirt off the plates and cut­lery.
  5. Dirty water drains. With the help of a drainage pump, water is pumped out and through a hose enters the sew­er.
  6. The wash­ing and drain­ing process is repeat­ed.
  7. Cold water is pumped in and the already washed dish­es are rinsed, the water is sprayed in a large jet in dif­fer­ent direc­tions.
  8. Dish­es are dried with hot air using a fan or by con­den­sa­tion dry­ing, when water evap­o­rates from the sur­face of the dish­es and flows down the walls of the machine into the drain.

Programs and duration of the dishwasher

Above, we exam­ined the device and the prin­ci­ple of oper­a­tion of dish­wash­ers, but most buy­ers are more inter­est­ed not in this infor­ma­tion, but in the oper­at­ing time of the dish­wash­er.

Many peo­ple won­der how long the machine will cope with wash­ing dish­es. Wash­ing time direct­ly depends on the select­ed pro­gram. In most cas­es, a nor­mal wash cycle takes about an hour. Con­sid­er, using the exam­ple of a Bosch machine, the wash cycle time, so:

  • at 35–45 degrees, the cycle takes 90 min­utes;
  • at 45–65 degrees — 165 min­utes;
  • at 65–75 degrees — 145 min­utes;
  • quick wash 45 degrees — 35 min­utes;
  • the pre-rinse will take 15 min­utes.

For wash­ing greasy or heav­i­ly soiled dish­es, only a full wash­ing cycle at a tem­per­a­ture of at least 60 degrees is suit­able. If you choose the wrong mode, you will get not com­plete­ly washed dish­es, and as a result, wast­ed time.

For the time allot­ted by the select­ed pro­gram, the machine per­forms the entire wash­ing process from water col­lec­tion to dry­ing clean dish­es.

In any dish­wash­er, there are three main pro­grams depend­ing on the degree of soil­ing of dish­es: pre-rinse, eco­nom­i­cal wash and inten­sive wash for heav­i­ly soiled dish­es.

If you have start­ed the dish­wash­er and sud­den­ly find that you have not loaded all the dirty dish­es, you can stop wash­ing at any time. The oper­a­tion of dish­wash­ers is based in such a way that when the door is opened dur­ing wash­ing, the entire process auto­mat­i­cal­ly stops, and after clos­ing the door, you can either con­tin­ue wash­ing in the select­ed mode or inter­rupt it alto­geth­er (see also how to load the dish­wash­er).

Half load dishwasher

Dish­wash­er man­u­fac­tur­ers have made sure that every house­wife choos­es for her dish­es the type of wash­ing that best suits the degree of soil­ing, the type of dish­es and their quan­ti­ty.

In mod­ern dish­wash­ers, for exam­ple, the Siemens brand, you can not only select the mode accord­ing to the tem­per­a­ture of the water for wash­ing, but also based on the degree of load of the machine with dish­es. An inte­gral fea­ture of dish­wash­ers is the half load mode. The nor­mal dish­wash­ing pro­gram is designed for a full load of the dish draw­er and dif­fer­ent tem­per­a­tures are adapt­ed to the degree of soil­ing.

Half load is designed for the case when instead of 12 sets of dish­es you need to wash only 6, respec­tive­ly, with this pro­gram, the amount of water, deter­gent and elec­tric­i­ty will be con­sumed half as much as in the nor­mal wash­ing mode.

Accord­ing to offi­cial fig­ures, thanks to the half load mode, you can save up to 25% of water con­sump­tion, and up to 15% of elec­tric­i­ty con­sump­tion.

At half load, dish­es can be placed in any com­part­ments, regard­less of this, they will be washed. This mode is great for fam­i­lies with a small num­ber of peo­ple.

There is noth­ing dif­fi­cult in the oper­a­tion of the dish­wash­er, but this tech­nique saves a lot of time for oth­er house­hold chores. The main thing when wash­ing dish­es is to choose the right mode and choose only high-qual­i­ty deter­gents.





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