Frequency converter application
Frequency converter in the water tank wire drawing machine application:
The water tank wire drawing machine, the principle is to larger specifications of the wire diameter of the cable, through the mold pulling into the smaller specifications of the wire diameter of the cable, and then in accordance with the axial rewinding motor will be lined up, the requirements of Danfoss frequency converter through the control of the rewinding motor, to the tension of the tension dynamic pulley (dancing wheel) to provide tension feedback The signal is PID-adjusted to the speed to ensure constant tension. The main motor of the water tank wire drawing machine is responsible for completing the fine wire stretching process, which is open-loop control; the winding machine is responsible for the winding function, and the line speed must be kept constant. Therefore, it is required to ensure constant tension through PID regulation of speed. Danfoss FC360 frequency converter fully meets the requirements of the water tank wire drawing machine on the frequency converter.
Conveyor pump applications:
Replaces slippery motor speed control systems with high failure rates due to the environment, as well as various types of valve control methods with poor control accuracy. Energy saving 20~40%, reduce equipment wear and tear, reduce investment in spare parts, improve control accuracy, and extend equipment life.
Fan applications:
Replace the more serious waste of energy baffle plate to adjust the airflow, reduce fan vibration, eliminate the current impact of large motor starting, avoid mechanical oscillation, greatly reduce the equipment failure rate, reduce equipment maintenance workload, easy to realize the microprocessor or closed-loop automatic adjustment of the air volume and pressure.
Reactor mixing application:
Improve the utilization rate of the equipment to meet the production of different products when the mixing speed adjustment, the use of frequency converter soft start characteristics, to achieve the reaction of the mixing of smooth, slow and uniform process requirements.
Powder feeding transmission drive application:
Replacing the slip motor which is difficult to adapt to this kind of environment, it is more convenient to realize the microcomputer automatic control mode, according to the process requirements of the production equipment, we can choose the Danfoss 2.2KW~22KW different power products, and use the control mode of VVC+. Applied in Kunming Iron and Steel Company mixed iron furnace, Yuxi Tobacco Factory and Qujing Tobacco Factory boiler coal feeder and silk production line equipment, Kunming Iron and Steel Company cement plant under the machine, Yunnan Nitrogen Fertilizer Plant feeder, Yunnan Phosphate Fertilizer Plant sulfuric acid boiling furnace feeder, Sichuan Deyang Oriental Electric Machinery Factory grate machine and other equipment, have achieved a saving of electricity and raw materials, protection of the dragging motor of the effect of a variety of.
Industrial boiler applications:
Keeping the boiler working stably for a long time, saving 30~50% of electricity, saving 5~15% of coal, reducing dust pollution, reducing noise, easy to realize the microcomputer control, reduce the failure rate, reduce the maintenance workload of the equipment, the frequency converter of Danfoss and the Japanese Fuji 160KW~200KW products used in Yuxi, Qujing, Chuxiong and other cigarette factories, such as the 10 tons of boiler and Yunnan Kaiyuan Liberation Army. boilers and 65-ton boilers of Yunnan Kaiyuan PLA Fertilizer Plant, 10-ton boilers of Sichuan Dongfang Electric Machinery Plant, 4-ton boilers of Zhejiang Lin'an Chemical Plant, 20-ton boilers of Changshu Fertilizer Plant, etc., which have been operated stably and reliably for a long time, and have achieved remarkable economic benefits.
Air compressor and air conditioning system applications:
Electricity savings of 30~40%, reduce noise, reduce vibration, to ensure long-term stable operation of the equipment, to extend the service life of the equipment, and to facilitate the realization of closed-loop automatic adjustment.
Constant water level, water pressure control:
Used in circulating water system, sewage treatment, water supply to high-rise buildings, etc., water level, water pressure control system, to achieve closed-loop control, no need for on-duty personnel to operate, stable and reliable for a long period of time, to eliminate the phenomenon of contamination or waste of water, energy savings of 30 ~ 50%, energy-saving infrastructure investment of more than 70%. Danfoss provides 15KW~55KW and 75KW~160KW products with constant water level, constant pressure control system, in Guangxi Baise oil extraction plant water supply station, Yangzi petrochemical water plant sewage pumps, Kunming cable plant circulating water pumps, pumping pumps in Hunan Pharmaceutical Plant and other equipment to apply continuous operation without failure, and achieve better economic benefits.
Light spinning equipment on the application:
Improve productivity, reduce equipment damage rate, the realization of the process requirements of smooth stepless speed adjustment, reduce noise, and achieve centralized control. In Kunhu Knitting General Factory's big garden knitting machine, Changshu Double Cat Sheet Factory's printing machine, Kunming Kunyang Paper Factory's paper rolling machine, Yunnan Shiping Sugar Factory's transportation machine, Yunnan Baiyao Pharmaceutical Factory's pill machine, Yunnan Dianxi Textile Factory's dyeing and printing machine, Dali Knitting Factory's sizing machine and other types of equipment on the application of all the corresponding requirements of the process, and work for a long time without failures.
Application in machine tools:
Reduce the number of pairs of variable-speed transmission gears, reduce noise, improve spindle accuracy, strong adaptability to various types of products and a variety of different materials required for the processing of the spindle speed rationing characteristics. Can be easily realized numerical control, and its cost is much lower than similar by DC speed control system composed of numerical control, Kunming milling machine factory audio quenching machine body drag system, power company's numerical control milling machine, Kunming Iron and Steel Company, Liangting Steel Rolling Mill 450 Vertical Rolling Mill main drag system, Yunnan Bearing Factory grinding machine, Beijing aerospace department factory of the missile casing grinding machine and so on have achieved better results. At present, VLT frequency converter has been used for a long time in engraving machine, extruder, wire drawing machine, CNC lathe and other professional manufacturers of products.
Cigarette machine applications:
Eliminate the original old cigarette machine, such as (MK8R) gear speed phenomenon caused by the high failure rate, improve the utilization rate of the equipment to extend the life of the equipment, power savings of 20%, the main motor to achieve localization and standardization. It saves foreign exchange, expands the source of spare parts and improves the working environment.