With the improvement of living standards, people's selection requirements for home appliances are getting higher and higher. Among them, dishwashers are a new kind of objects. Then let's take a look at the working principles of various dishwashers to facilitate us to do. There is a reference when choosing out!
Automatic dishwasher
The automatic dishwasher uses a high-temperature and high-pressure water flow to mechanically wash the surface of the cutlery 360 °, and the detergent decomposes the oil and residue on the surface of the tableware, and the immersion of hot water to the food residue makes the oil and residue quickly decompose and fall off To achieve the dual effect of cleaning and sterilization.
The working method of Midea Dishwasher is based on the combined result of mechanical action and chemical action. The washing mechanism is as follows:
(1) Mechanical action
1. Driven by the washing pump, the washing liquid is directly sprayed to the surface of the tableware in the spraying state. The direct washing effect of the washing liquid on the surface of the tableware is related to the pressure, angle and speed of the jet water sprayed from the spray arm.
2. The washing liquid indirectly flushes the surface of the tableware in the spray state. After the washing liquid is sprayed to the tableware and the inner tank, it rebounds, and after the spray, the backwashing liquid flushes the surface of the tableware.
(2) Chemical action
3. Through the water softener containing ion exchange resin, effectively remove the calcium and magnesium ions that affect the saponification reaction, improve the water quality, and make the detergent fully function.
4. The detergent added in the washing process and the oil in the tableware have a good alkaline saponification reaction, so that the oil stains are separated from the tableware. When the water temperature reaches 45 ℃ ~ 50 ℃, the active substance can play the most role.
In view of the unique washing method and washing environment of the dishwasher, the dishwasher has good sterilization and sterilization functions. Conventional such as E. coli and staphylococcus, etc., can be killed by maintaining it at a temperature of 60 ℃ for 20 minutes. Viruses such as hepatitis B that are not easy to kill under high temperature are completely removed by repeated flushing and drainage. At the same time, the detergent itself has a good inhibitory effect on various bacteria.
Ultrasonic dishwasher
Ultrasonic dishwashers use the principle of ultrasonic cleaning: when ultrasonic waves pass through a liquid medium, they will press the liquid medium to vibrate at a very high frequency, causing the liquid molecules to generate positive and negative alternating shock waves. When the sound intensity reaches a certain value, tiny cavitation bubbles grow rapidly in the liquid and close strongly in an instant, generating strong micro-explosions and shock waves that damage the dirt on the surface of the object to be cleaned and falling off the surface to be cleaned. Although the effect of each cavitation bubble is not great, but there are hundreds of millions of cavitation bubbles in action every second, it has a good cleaning effect. Because ultrasonic waves can penetrate solid substances to vibrate the entire liquid medium and generate cavitation bubbles, this cleaning method has no dead corners that cannot be cleaned, and the industry proves that ultrasonic cleaning has high cleanliness.
The original dishwasher used a vortex washing principle similar to the current pulsator washing machine, which consumes water, electricity and has a poor washing effect. After continuous technological innovation, so far, the dishwasher has achieved a leap from structure, principle to control mode, the dishwasher technology has reached a quite perfect level, basically using the best washing method: the washing liquid It sprays onto the surface of the washed utensils in three-dimensional directions, washing and washing the dishes, and the whole process of washing, disinfection and drying automatically completes a series of procedures.
Jet dishwasher
During the dishwasher washing process, the surface of the tableware is mechanically washed by the high-temperature and high-pressure jet of water, the detergent will saponify and decompose the surface of the tableware, the saponification and decomposition of the residue, and the hot water will soak the food residue, making the tableware oily, The residue and food residue quickly decompose and fall off, and the surface of the tableware is clean and shiny again. Under the dual action of high temperature and high pressure water column washing and strong decontamination of detergent, harmful pathogens can be effectively eluted to achieve the dual effect of cleaning and sterilization.
(3) Mechanical action
1) Under the drive of the washing pump, the washing liquid is directly sprayed to the surface of the dishes in the spray state. The direct washing effect of the washing liquid on the surface of the tableware is related to the pressure, angle and speed of the jet water sprayed from the spray arm.
2) The washing liquid indirectly flushes the tableware surface in the sprayed state. After the washing liquid is sprayed to the tableware and the inner tank, it rebounds, and after the spray, the backwashing liquid flushes the surface of the tableware.
Chemical action
1) The water softener containing ion exchange resin can effectively remove the calcium and magnesium ions that affect the saponification reaction, improve the water quality, and make the detergent fully function.
2) The detergent added in the washing process has a good alkaline saponification reaction with the grease in the tableware, so that the oil stains are separated from the tableware. When the water temperature reaches 45 ℃ ~ 50 ℃, the active substance can play the most role.
In view of the unique washing method and washing environment of the dishwasher, the dishwasher has good sterilization and sterilization functions. Conventional such as E. coli and staphylococcus, etc., can be killed by maintaining it at a temperature of 60 ℃ for 20 minutes. Viruses such as hepatitis B that are not easy to kill under high temperature are completely removed by repeated flushing and drainage. At the same time, the detergent itself has a good inhibitory effect on various bacteria.
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