2013

What are the technical difficulties in manufacturing large conveyors?

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　　For the conveyor products on the current market, the main ones are still small and medium-sized conveyor machinery. Large conveyor products have certain technical difficulties. Anhui Yongsheng Machinery Co., Ltd.'s technical summary of current large conveyor products shows that the main technical difficulties are as follows.

　　一、The selection of power devices. Currently, universal frequency converters are already very mature products both domestically and internationally. We do not need to do more research and development work on their internal structure and principles. What we should do is to select power components and host drive parts.

　　二、The heat dissipation of power devices is the biggest challenge encountered by explosion-proof frequency converters. Inside the frequency converter: the inverter module is the component that generates the most heat. According to expert estimates, it accounts for about half of the total heat dissipation of the entire frequency converter; The rectifier module also generates a considerable amount of heat, accounting for about 45% of the total heat emitted by the inverter; The remaining 5% is the heat emitted by electrolytic capacitors, charging resistors, voltage equalization resistors, and heating elements on printed boards. It is understood that the thermal power consumption of a frequency converter is approximately 2% to 3% of its rated power, which means that if the rated power of the motor is 400 kW, its heat generation is approximately 8 to 12 kW. So how to timely and quickly transfer and dissipate this heat in a sealed explosion-proof chamber is the key to the long-term normal operation of explosion-proof frequency converters.

　　三、Electromagnetic compatibility (EMC), a frequency converter consists of two main parts: the main circuit and the control circuit. However, due to the nonlinearity of the main circuit (which performs switching actions), the frequency converter itself is a harmonic interference source, which can affect the equipment on the power supply and output sides. Anhui Yongsheng Machinery Co., Ltd. believes that the technical difficulties of conveyors will be well solved in the era of highly developed technology in the future. Anhui Yongsheng Machinery Co., Ltd. will continue to work hard and strive to contribute to the development of conveyors.

　　If you need high-quality conveyors, you can call 0556-6203328 or visit our company website "Anhui Yongsheng Machinery Co., Ltd." www.ys-machine.com for detailed information.

What are the technical difficulties in manufacturing large conveyors?

永生机械