The development history of dishwashers
The development history of dishwashers. In life, there are more and more household appliances because people’s needs continue to increase, including dishwashing. The dishwasher is an electrical appliance that many families choose because it makes it easier for people to wash dishes. Let’s share the development history of the dishwasher. The development history of dishwashers 1
Dishwasher is a device that automatically cleans bowls, chopsticks, plates, dishes, knives, forks and other tableware. According to the structure, it can be divided into two categories: box type and conveyor type. . It reduces labor intensity, improves work efficiency, and improves cleanliness and hygiene for cooking staff in restaurants, hotels, and canteens of government agencies. Dishwasher has entered ordinary households.
Josephine Cochrane, the granddaughter of steamboat inventor John Fitch, can be regarded as the mother of modern dishwashers. She exhibited her invention at the 1893 World's Fair. At that time, dishwashers were still manual. In the 1920s, dishwashers with water pipes appeared.
The first patent for machine dishwashing appeared in 1850, owned by Joel Houghton, who invented a manual dishwasher.
In 1929, the German Miele company manufactured Europe's first electric household dishwasher. However, its appearance was still a relatively simple "machine" and was not closely related to the overall environment of the home.
In 1954, the American GE Company produced the first electric desktop dishwasher. Not only did the washing performance improve, but the overall volume and appearance of the machine also improved.
In Asia, Japan was the first to engage in dishwasher research. By the mid-to-late 1990s, Japan had developed microcomputer fully automatic desktop dishwashers. The companies represented include Panasonic (National, SANY), Mitsubishi (MITSUB ISHI), Toshiba (TOSHIBA), etc.
At the same time, Europe and the United States have developed household dishwashers into kitchens with a unified image Home appliances. Companies represented in Europe and the United States include Miele, Siemens, Whirlpool and other companies. The development history of dishwashers 2
How to choose a dishwasher
1. When purchasing a dishwasher, you must first consider safety. Secondly, consider the type and specifications of the dishwasher. There are four washing methods of dishwashers: impeller type, spray type, rinse type and ultrasonic type. , the more common ones are impeller and jet models, which have simple structure, good washing effect, low price, simple maintenance, and are suitable for general household use. In terms of specifications (usually expressed in terms of power consumption), It is more suitable for a family of 3 to 4 people to choose a dishwasher with a power of 700 to 900 watts.
2. The dishwasher has many functions, and the average family only needs to have washing, rinsing, drying and automatic programs. At the same time, you can also choose a dishwasher with functions such as fast washing, rinsing, rinsing and rotating spray. The advantages of this type of model are clean washing, safety and reliability, and self-circulation, but the price is relatively high. It is more expensive.
3. There are two types of dishwasher cabinet doors, namely front-opening type and cover-type dishwasher. The space above cannot be fully utilized. When the cabinet door is opened, the bowl basket can be easily pulled out, and it is very convenient to take and place the tableware. Therefore, from the perspective of convenience, if there are no special requirements, it is generally suitable. It is advisable to choose a front-door dishwasher. When purchasing, you should also pay attention to choosing a rack that is mainly used for placing dishes and supplemented by placing dishes.
4. Check the washing machine. Check whether the door buckle of the bowl machine is tight, firm and reliable. Check whether the welding of the bowl basket is firm. There are no sharp edges around the machine and the door handle. The rollers at the bottom are flexible. The bowl basket can be easily pulled out without sticking by hand. The program controller requires the dishwasher's selector switch to be flexible and reliable during operation.
5. When the AC power is turned on to start the dishwasher, its insulation performance is particularly important. It must ensure that there is no leakage of electricity or water, the water pump and motor run smoothly, the vibration is small, and the noise is low. Various function buttons can be switched on and off freely, with good contact, and the water jet is even and powerful. The dishes should be clean after washing, and the power supply can be automatically cut off after the operation is completed.
6. When choosing a commercial dishwasher, you need to carefully compare prices, performance, and practicality according to different uses. In view of the fact that the technology is more mature, the most advanced flat-top dishwasher is a good choice if it is not due to investment budget restrictions.