The supplier of frequency converter supporting equipment reminds you that usually, the device that converts fixed voltage and frequency AC power into variable voltage or frequency AC power is called a "frequency converter". Among various motor speed control technologies, variable frequency speed control of AC motors has become the main way of electrical transmission due to its advantages such as high precision, large torque, strong functionality, high reliability, and high power.
Due to the function of continuously adjusting the speed of asynchronous motors with constant torque and power, frequency converters have a large range of adjustment speed, high stability, and strong mechanical characteristics. The most critical feature is their obvious energy-saving effect, which helps accelerate the process of industrial production automation and many other characteristics. This has gradually expanded the application range of frequency converters, generally involving all fields, such as production in light and heavy industries and people's daily lives. It is widely used in industries such as steel, non-ferrous metals, petroleum, petrochemical, chemical, synthetic fiber, textile, machinery, electronics, building materials, coal, medicine, papermaking, injection molding, cigarettes, elevators (including escalators), cranes (including port cranes), urban water supply (including sewage treatment), central air conditioning, and household appliances.
·Petroleum: oil pumps, electric submersible pumps, water injection pumps, pumping units, etc
·Chemical industry: extruder, film conveyor, mixer, compressor, blower, spray, pump, etc.
·Steel: rolling mill, roller conveyor, fan, pump, crane, ladle car, converter tilting, etc.
·Metallurgical industry: rolling mills, roller conveyors, blast furnace fans, pumps, lifting machinery, blast furnace feeding, steel mill polishing, etc
·Steel rolling line: wire drawing machine, winding machine, blower, pump, lifting machinery, fixed length shearing, automatic feeding
·Architecture: elevators, conveyors, air conditioning equipment, blowers, pumps, etc
·Electricity: Boiler drum blower, feedwater pump, centrifugal mixer, conveyor belt, water lifting power station, flywheel, etc
·Mining: Mud pumps, conveyors, hoists, cutting machines, excavators, cranes, blowers, pumps, compressors, etc
·Transportation: electric vehicles, electric locomotives, ship propulsion, air compressors, cable cars, etc
·Cement: rotary kiln, lifting machinery, blower, pump, main drive motor, conveyor belt, shaft kiln fan, etc.
·Paper industry: paper machines, pumps, crushers, fans, mixers, blowers, etc
·Electronic manufacturing industry: air compressors, injection molding machines, central air conditioning, fans, pumps, conveyors, etc
Application of frequency converter in industrial machinery and equipment pump loads
The reason why frequency converters can be widely used in industrial machinery and equipment pump loads is because of their powerful speed regulation technology, which uses the frequency of the stator of the motor to change the speed of the motor accordingly, ultimately changing the working conditions of pump loads and making the original equipment more capable of meeting production requirements. If there is a significant change in the load of mechanical equipment and pumps in industrial production, using frequency converter technology to control the output of the frequency converter can enable the pump load to meet the production process conditions, achieve the best energy-saving effect, improve production level, accelerate the process of industrial automation, and prolong the service life of equipment, improve product quality, increase production efficiency, and enable enterprises to obtain higher economic benefits.
Application of frequency converter in industrial production machinery fan load
Fans are basically used in cooling systems, boiler systems, drying systems, and exhaust systems in industrial production. In the production process, we will control factors such as air volume and temperature that affect production in order to achieve good conditions for production technology and working conditions. In the previous control process, the method often used was to adjust the opening and closing degree of the air outlet and baffle. The disadvantage of using this control method is that regardless of the production process and working conditions, the fan always runs at a constant speed, which cannot accurately meet the conditions of the production process and operating conditions, wastes energy and consumes equipment and materials, reduces production profits, and shortens the service life of the equipment. For example, chemical fiber plants, steel plants, cement plants, etc. all use fans. If we use adjusting the air outlet to change the air volume, the motor will always operate at full load, but the opening of the air damper is only between 50% and 80%, which would be a wasteful behavior. The frequency converter technology is used in the load of the fan, and its stepless speed regulation performance can expand the speed range of the fan, make it more reliable, easy to schedule, and achieve high conditions for production processes and working conditions.
The application of frequency converters in energy conservation and consumption reduction
In places where the motor load is generally constant, such as textile mills and steel mills, the motor usually operates at a certain power, and the performance of the frequency converter is difficult to replace by other equipment, such as smooth acceleration and deceleration, precise control torque, and good working stability, so it can be well utilized. In such factories, frequency converters not only fail to save energy, but on the contrary, due to their high cost and energy consumption, the entire system becomes more expensive and consumes more energy. On the contrary, in applications such as fans and pumps, the energy-saving and consumption reducing characteristics become very prominent. In these applications, the current load often changes. If several motors are used in parallel, it will definitely increase equipment costs. If the previous speed regulation method is used, it is also not conducive to achieving the goal of production automation. In this case, some manufacturers have produced specialized frequency converters for this application. This type of frequency converter does not have the characteristics of high-precision speed regulation and torque control, so its production cost is also very low.