Core technology of drum dryer

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Every rainy season, the balcony of the home has become a problem area. The wet sheets clung to the clothesline, the children's school uniforms smelled of mildew, and their favorite shirts were hard and uncomfortable from repeated exposure. However, since the advent of the drum dryer, the situation has changed. It can precisely control the drying process, the wet clothes into a fluffy soft state, the operation at the touch of a button. So how does the dryer achieve this effect? Here are five of its core technologies.

1.Anti-overload structure technology

Many people stuff loads of wet clothes, such as wet sheets and linens, into the dryer at the weekend. With a traditional dryer, the machine will jump and make a loud noise. The anti-overload structure of modern dryer solves this problem. It has a high-strength alloy steel frame and is made of an excellent material that keeps the machine stable even when it is stuffed with wet clothes that are far heavier than normal. The magnetorheological damper installed in the machine can adjust the damping coefficient in real time through the electromagnetic field and reduce the vibration energy. The special silica gel pad at the bottom of the machine has high rebound rate, which can transform the residual vibration into tiny deformation and greatly reduce the noise. At this point the dryer is quieter and turning the pages more loudly.

2.Intelligent Control Technology

Silk pajamas, denim jackets, and wool scarves are often washed together and thrown into a traditional dryer. The results are often poor: silk may shrink in the heat; denim jackets may not be completely dry The woolen scarf will harden into a lump. Intelligent control technology makes dryers have a variety of practical functions. It is equipped with high precision humidity sensor, can be measured in a very short time clothing moisture content. The temperature probe has fast sampling frequency and can accurately control the drying temperature, and different fabrics correspond to different suitable temperatures. AI fabric recognition module has a wealth of fabric database, can be customized for each garment care program. Put the mixed laundry into the dryer, choose the mixing mode, take it out after a period of time, silk down, denim coat dry and neat, wool scarf soft and fluffy.

3.Heat exchange system

Direct discharge dryer drying clothes each time the power consumption is larger, according to the electricity standard cost is higher. It also vents hot, humid air directly into the house, which is muggy in summer and humid in winter. Heat pump technology makes dryers more energy efficient. It adopts the principle of“Inverse Carnot cycle” to realize the efficient utilization of heat. The compressor compresses the refrigerant of low temperature and low pressure gas into high temperature and high pressure gas, releasing heat to heat the air, the condenser condenses the water vapor in the hot and humid air into liquid water and discharges, and the expansion valve depresses the refrigerant to cool down The evaporator absorbs the ambient heat to complete the cycle. The power consumption of single drying in this process is greatly reduced, and the energy consumption is much lower than that of the direct discharge type. And indoor humidity almost unchanged when running, cool in summer and dry in winter.

4.Composite heat preservation and waste heat recovery technology

Traditional dryer insulation difference, heat loss through the wall and door cracks, resulting in low drying efficiency, high energy consumption. Modern dryer adopts composite insulation technology, “Multi-layer insulation structure”: inner ceramic fiber cotton, middle vacuum insulation plate, outer galvanized steel plate, can effectively reduce heat loss. The dryer is also equipped with waste heat recovery device, through the“Gas-gas heat exchanger”, the waste heat in the hot and humid air is transferred to the new cold air, so that the cold air is preheated and then enters the cylinder. The experimental data show that the composite insulation technology can reduce the heat loss rate significantly, and the waste heat recovery technology can improve the drying efficiency significantly.

5.Design technology of roller

Traditional cylindrical drum drying clothes, clothes piled up, the central part of the dry quickly, the edge of the dry slowly. Modern dryers optimize the design of the drum, through the“Shape optimization + rib innovation” to achieve uniform drying. Regular polygon drum than traditional cylindrical more edges, can let clothes in the drum constantly turn, increase the contact area with the hot air. The spiral lifting rib in the roller adopts asymmetric design, which can exert multi-dimensional force on the clothes and promote hot air to penetrate the clothes fiber. Experiments show that the combination of the roller and the lifting rib can make the moisture content difference of each part of the clothing very small, and realize a drying without turning over.

Conclusion

From the anti-overload structure to make the machine stable, to intelligent control to achieve precision care; from the heat pump technology to save electricity, to composite insulation and waste heat recovery to reduce heat waste; to the drum design to ensure uniform drying clothes, drum dryer each of the core technology is the combination of science and technology and life needs. It solves many problems and redefines the standard of modern clothing care with intelligent, energy-saving and humanized design. When Science and technology serve life, the problem of airing the clothes that once troubled us can be easily solved. In the future, the dryer will be more intelligent, energy saving, humanization, become a family right-hand man.