In which industries do Frequency Inverters have more significant energy-saving effects?

Frequency Inverters have shown significant energy-saving effects in applications in many industries. The following are some industries where the energy-saving effects of Frequency Inverters are more significant.

Power industry: In power plants, the operating conditions of many auxiliary equipment such as blowers, induced draft fans, water supply pumps, circulating water pumps, etc. will change according to changes in power generation load. Using Frequency Inverters to control the speed of these devices can accurately adjust the motor speed according to actual load requirements, thereby significantly reducing energy consumption. For example, in thermal power plants, by installing Frequency Inverters on the blowers and induced draft fans, the speed of the fans can be automatically adjusted according to the combustion conditions and load requirements of the boiler, so that the air volume accurately matches the combustion requirements. Generally, energy savings of 20%-30% can be achieved. about.

Metallurgical industry: Various types of fans, water pumps, compressors and other equipment in the metallurgical production process have obvious energy-saving effects after using Frequency Inverters to adjust their speed. For example, after the blast furnace blower in an ironmaking plant is controlled by a Frequency Inverter, the speed of the blower can be flexibly adjusted according to the furnace conditions and production needs of the blast furnace, significantly reducing energy consumption while ensuring normal production of the blast furnace. In addition, the application of Frequency Inverters on equipment such as dust removal fans in steelmaking workshops and various water pumps in steel rolling workshops can also achieve good energy-saving effects. Usually the energy-saving rate is between 20% and 50%.

Petrochemical industry: There are a large number of pump and compressor equipment in this industry, such as crude oil transfer pumps, water injection pumps, circulating water pumps, refrigeration compressors, air compressors, etc. The flow and pressure requirements of these equipment will change with the changes in the production process. Using Frequency Inverters for speed control can enable the equipment to operate efficiently under different working conditions and reduce energy consumption. Taking a crude oil transfer pump as an example, after using a Frequency Inverter to adjust the speed, the pump speed can be automatically adjusted according to the pressure and flow requirements of the oil pipeline, avoiding the energy loss caused by traditional valve adjustment methods, and the energy saving rate can reach 25%-40%. .

Mining industry: During the mining and processing of mines, ventilators, elevators, belt conveyors, crushers and other equipment are the main energy-consuming equipment. The application of Frequency Inverters on these equipment can realize soft start and soft stop of the equipment, reduce the mechanical impact and wear of the equipment, and at the same time adjust the operating speed of the equipment according to changes in production load to achieve energy saving. For example, in a mine ventilation system, adjusting the speed of the ventilator through a Frequency Inverter according to the underground ventilation requirements can effectively reduce energy consumption. The general energy saving rate is about 30%-50%.

Building materials industry: Rotary kilns, ball mills, unloaders, disc feeders and other equipment in cement plants need to frequently adjust their rotational speeds during the production process to meet process requirements. After using the Frequency Inverter, not only can the speed of the equipment be accurately controlled and product quality improved, but energy consumption can also be significantly reduced. For example, after a cement plant retrofitted its ball mill with a Frequency Inverter, the energy saving effect reached about 30%-40%, and the maintenance cost of the equipment was also significantly reduced.

HVAC industry: In the central air-conditioning system, equipment such as chilled water pumps, cooling water pumps and air-conditioning fans account for a large proportion of energy consumption. By installing a Frequency Inverter, the speed of these devices can be automatically adjusted according to changes in indoor and outdoor ambient temperatures and air conditioning load, thereby achieving energy-saving operation of the air conditioning system. Under normal circumstances, a central air conditioning system controlled by an inverter can save about 20%-40% of energy.

Injection molding industry: Injection molding machines have different requirements for flow and pressure at different working stages. Traditional metering pump injection molding machines have a large waste of energy. After using a special Frequency Inverter for injection molding machines, it can accurately control the speed of the oil pump motor and provide corresponding pressure and flow according to various stages of injection molding, such as opening and closing the mold, injection, pressure holding, cooling, etc., thus greatly improving energy utilization. Generally, the power saving rate can reach 25%-60%.

Logistics and warehousing industry: The operating speed of automatic sorting equipment, conveyor belts, etc. in logistics warehouses usually needs to be adjusted according to the flow and processing requirements of the goods. The application of Frequency Inverters can enable these equipment to run at optimal speeds under different working conditions, avoid idling and excessive operation of equipment, improve energy utilization efficiency, and reduce operating costs.
Wind power generation: The Frequency Inverter can adjust the speed of the wind turbine blades in real time according to changes in wind speed, so that the wind turbine always works at the maximum power point, improves power generation efficiency, and realizes soft start and fault protection at the same time, reducing the impact on the power grid and extending the wind power Generator life.

Photovoltaic power generation: In the photovoltaic power generation system, the inverter drive system can realize maximum power point tracking, control the output frequency and voltage of the inverter, so that the photovoltaic modules always work in the best power generation state, improve photovoltaic power generation efficiency, and ensure power quality. Comply with power grid requirements and achieve stable grid connection

Generally speaking, the Frequency Inverter reduces energy consumption by controlling the speed of the motor so that the motor only runs at the appropriate speed when needed. This energy-saving method is more effective when the load variation range is large. Therefore, in industries that require frequent adjustments to motor speed and load changes, the energy-saving effect of Frequency Inverters is more prominent.