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The principle of household dishwasher

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The principle of household dishwasher

Basically, the dishwasher is a robot that cleans and washes dirty dishes. The dishwasher only needs to be put in the dishwasher, the detergent is added, the proper dish washing cycle is set, and then the dishwasher is opened, and the dishwasher will automatically complete a complete set of functions. A chance to wash the dishes:

Water yourself

Heat the water to the proper temperature

Automatically turn on the detergent adding device at the right time.

Wash the dishes by shooting water through a sprinkler

Discharge sewage

Spray more water on the dishes to scour

Discharge the sewage again

In addition, self monitoring of washing up opportunities ensures that all functions are functioning normally. A timer (or minicomputer) controls the duration of each operation. A sensor monitors the temperature of water and air to prevent the dishwasher from overheating or damaging the dishes. Another sensor monitors the water level. Once the water level is found too high, it will activate the drainage function to prevent water from overflowing in the dishwasher. Some dishwashers even have sensors to monitor the level of water after washing dishes. If the water is clean enough, the dishwasher will know that the dishes are clean.

Dishwasher inside

Although the dishwasher is not leaky, it does not contain water, but only water is poured into a small basin at the bottom. There, the heating device heated the water temperature to about 54 degrees Celsius to 60 degrees Celsius. Then a pump is used to push the water to the sprinkler, where water is sprayed to the dirty dishes. Imagine a water pipe without a nozzle in the garden. If you hold the end of the pipe with your thumb and reduce the flow of water, the water will be sprayed very strongly. The dishwasher sprinkler works the same way as it does. The impact of water will also rotate the nozzle connected to the sprinkler, just like the grass sprinkler.

When the cleaning and scouring are finished, the water will be rearranged into the small basin, where the pump will pull the water out of the dishwasher. Depending on the type of dishwasher, sewage may flow directly into the pipe under the sink, or it may flow into the sink itself through a section of pipe.

The last step in the washing process is drying, which is optional. The heating device at the bottom of the dishwasher helps to dry the dishes by heating the internal air. In order to save energy, some people dry their dishes without heating them.

Dishwasher is not a very complex machine. The main parts of the dishwasher include:

control device

The control device is installed in the dishwasher door, behind the control panel. Most of the components use a simple motor system: a timer, which determines the duration of each stage of the operation and the proper function to start at the right time (for example, adding detergent, water spray cleaning and drainage). More expensive dishwashers may contain computer control systems. The modern dishwasher also has a door lock which must be locked with a dishwasher. Some even have a child safety lock.

Inlet valve

This is where water enters the dishwasher from the home's water supply system. Water is not pumped into the basin by the dishwasher pump, but when the inlet valve opens, the water pressure itself causes the water to enter the dishwasher.


The pump is driven by the motor. In the process of pressurized water, the pump advances the water into the nozzle. In the process of drainage, the pump leads the water to the drain pipe. The motor pump accessories are installed below the basin and the center of the dishwasher. There are two main types of pumps:

Reversible type
By changing the direction of the motor, the pumps decide whether to press the water to the nozzle or to drain the water into the drain. A reversible pump is usually installed vertically.

Direct drive type
The motor can only run in one direction, so the switching of the flow direction from the nozzle to the drain is controlled by a solenoid valve, which opens and closes the corresponding valves, or converts the pipe path. Irreversible pumps are usually installed horizontally.
The dishwasher can be assembled into a portable or permanent type. The portable dishwasher has beautiful sides and can serve as the top of the kitchen worktable. When you don't use it, you can put the machine on the wall. When you need to use it, push it over the sink through the rollers and connect it to the faucet and the nearby outlet. In permanent installation, the dishwasher is installed under the existing table and bolted. The pipes below the kitchen sink are directly connected to the hot water pipes and drain pipes, and the dishwasher is usually placed underneath the sink. The two way of installation requires a 120 volt grounding wire.
Even if the dishwasher takes up most of the work, the whole process needs people's participation. Here are some guides that can help you operate the dishwasher safely and efficiently.

Do not use ordinary detergent. Foam will overflow the dishwasher.

Don't put too many dishwasher in the dishwasher. You need to leave some space for the sprinkler so that it can spray water into the dishes.

Turn the dirtiest part of the dish toward the sprinkler, usually in the middle.

Don't mix steel utensils and silverware. Putting two different types of metals in the same humid environment is the easiest way to rust them.

Try to place bowls, spoons and other dishes of the same shape separately. Otherwise, they will be nested together, and the water will not be able to reach all parts of the dish.

Do not put wood, cast iron, porcelain, crystal or hand painted dishes in the dishwasher. Wash them with hands.

Use dishwasher during a day of high water pressure (such as late at night). If you don't spend a lot of water on other places (for example, washing clothes), wash dishes and wash dishes more cleanly.

If your home is using hard water, add a little detergent.

Use the scouring function to clean spots and help your dishes dry faster.

Do not put plastic products on the bottom shelf, especially when you use the drying function. The heating device melts some plastic.

Don't clean the dishes in advance. In fact, washing dishes rely on food stuck to dirty dishes to maintain proper acid-base balance in the dishwasher. But a lot of dirty things should be thrown into the trash cans in advance.

Most people encounter problems when using dishwashers. They can't wash dishes. It may be the remains of sticky food or detergent on the dishes. The culprit may be the water pressure. You may need to change a water inlet valve. Another common problem is the accumulation of minerals. If your home uses hard water, the buildup of minerals will clog the water sprinkler. You can clean each sprinkler with a wire or a pin, and add a little vinegar to the detergent and run the empty dishwasher once a month.

Pub Time : 2018-04-19 15:56:14 >> News list
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