Encyclopedias help you improve your knowledge. What is a An Chuan frequency converter?

Frequency converter is an electric energy control device which uses the switching function of power semiconductor devices to convert power frequency power supply to another frequency. Today, Bian Xiao wants to introduce a kind of frequency converter to friends, which is An Chuan frequency converter. The following is the specific content.

Brief introduction of An Chuan frequency converter

An Chuan frequency converter is called "An Chuan AC variable frequency governor", which is mainly used to control and adjust the motor speed of three-phase asynchronous AC motor. When the working current frequency of the motor is lower than 50Hz, it will save electricity, so the inverter is one of the energy-saving products called by the state. With the popularization of energy saving and industrial automation, frequency converters are used more and more, with tens of billions of sales in China every year. An Chuan frequency converter is one of the world famous frequency converters, which is produced by Yaskawa Electric Company and has a high share in the world. At present, Yaskawa Electric has a factory in Shanghai, China, specializing in the production of series of inverters such as CIMR-G/CIMR-F/CIMR-E/CIMR-L.

Application of An Chuan frequency converter

1, air conditioning load level

Office buildings, shopping malls, some supermarkets and factories all have central air conditioning, which consumes a lot of electricity during the summer peak period. In hot weather, the electricity consumption of air conditioners in Shanghai, Shanghai and Shenzhen accounts for more than 40% of the peak electricity consumption. Therefore, it is a very good energy-saving technology to drive the refrigeration pump, cold water pump and fan of air conditioning system with frequency conversion device. Frequency converters in An Chuan are widely used, and the maintenance of frequency converters in An Chuan should also be paid attention to.

2, crusher load

There are many crushers and ball mills used in metallurgical mines, building materials and other industries, and the effect of this kind of load after frequency conversion is remarkable.

3, large kiln calciner load

In the past, large industrial rotary kilns (converters) such as metallurgy, building materials and caustic soda mostly used DC, commutator motor, slip motor, cascade speed regulation or intermediate frequency unit speed regulation. In recent years, many units have adopted frequency conversion control because these speed regulation methods have slip rings or low efficiency, and the effect is excellent.

4. Compressor load

Compressors are also widely used loads. Low-pressure compressors are widely used in various industrial sectors, and high-pressure large-capacity compressors are widely used in steel (such as oxygen generators), mines, fertilizers, ethylene and other industries. Adopting frequency conversion speed regulation has the advantages of small starting current, energy saving and optimization of equipment service life. Also pay attention to the maintenance of An Chuan frequency converter.

5. Rolling mill load

In the metallurgical industry, in the past, AC-AC converters were mostly used in large rolling mills, but in recent years, AC -DC- AC converters have become a trend, especially for light-load rolling mills, such as the multi-stand aluminum rolling mill in Ningxia Minzu Aluminum Products Factory, which meets the requirements of low-frequency on-load start, synchronous operation between stands, constant tension control and simple and reliable operation.

6, lifting load

Winch load adopts frequency conversion speed regulation, which is stable and reliable. Blast furnace hoisting equipment in ironmaking plant is the main conveying equipment of ironmaking raw materials. It is required that the starting brake should be stable, the acceleration and deceleration should be uniform and the reliability should be high. In the past, cascade, DC or rotor series resistance speed regulation was used, which was inefficient and unreliable. It should be noted that in the maintenance of An Chuan frequency converter, replacing the above speed regulation mode with AC frequency converter can achieve ideal results.

7. Converter load

For inverter load, it is simple and reliable to replace DC unit with AC frequency conversion, and the operation is stable.

8. Roller load

Mainly in the iron and steel metallurgical industry, the roll load is controlled by AC motor frequency conversion. It should be noted that the maintenance of An Chuan inverter can improve the reliability and stability of the equipment.

9. Pump load

The load of pumps is large and wide, including water pumps, oil pumps, chemical pumps, mud pumps and sand pumps. , including low-pressure small and medium-capacity pumps and high-pressure large-capacity pumps.

Many pumps in water supply companies, chemical pumps in chemical fertilizer industry, reciprocating pumps, mud pumps in non-ferrous metals and other industries all adopt frequency conversion speed regulation, which has produced very good results.

10, crane, dump truck loading

Load torque of cranes, dump trucks, etc. Is big, requires stability, frequent positive and negative and reliable. Using frequency conversion device to control cranes and dump trucks can meet these requirements.

1 1, wire drawing machine load

The wire drawing machine for producing steel wire requires high-speed continuous production. The steel wire strength is 200Kg/mm, and the speed control system requires high precision, high stability and synchronization.

12, transport vehicle load

It is very effective to use frequency conversion technology in coal mine raw coal loading or steel plant molten steel transporter. Quick start and stop, strong overload capacity, flexible forward and reverse rotation, smooth coal surface, correct weight (less loading or less loading), basically no manual operation. It should be noted that the maintenance of An Chuan frequency converter improves the production efficiency of raw coal and saves electric energy.

13, lift overhead tour bus load

Because the elevator is a manned tool, it requires high reliability of the traction system and frequent acceleration, deceleration and forward and reverse rotation. With the improvement of elevator dynamic characteristics and reliability, the safety, comfort and efficiency of elevator operation have been improved. In the past, most elevators used DC speed regulation, but in recent years, it has gradually changed to AC motor frequency conversion speed regulation, regardless of Japan and Germany. Many elevator factories in China are scrambling to equip elevators with variable frequency speed regulation. Such as Shanghai Mitsubishi, Guangzhou Hitachi, Qingdao Fuji, Tianjin Otis, etc. All adopt AC frequency conversion speed regulation. Many elevators originally produced have also undergone frequency conversion transformation.

14, feeder load

There are many feeders in metallurgical, electric power, coal, chemical and other industries, and the effect of variable frequency speed regulation is very obvious whether it is a disc feeder or a vibrating feeder. The disc feeder of sulfuric acid production line in dye factory of Jihua Company used to be slip speed regulation, with low frequency torque, many faults and frequent jamming. After adopting frequency conversion speed regulation, it is an asynchronous motor with high reliability and power saving. More importantly, it is closed-loop with temperature transmitter to ensure the accuracy of conveying materials. It should be noted that the maintenance of An Chuan frequency converter will not cause accidents due to excessive delivery and over-temperature of oxidant, thus ensuring the orderly production.

15, stacker-reclaimer load

The stacker-reclaimer is the main equipment for stacking materials in coal yards, docks and mines, and its main function is to stack materials. Automatic palletizing and semi-automatic material taking are realized, which improves the reliability of the equipment, and the equipment runs smoothly without impact and shaking. The feeding process is rotated and adjusted according to the law of 1/cosφ, which improves the bucket rotation efficiency and the uniformity of belt coal transportation, and is very popular with workers.

16, fan load

Fan load is a large-scale and wide-ranging equipment, which is widely used in steel mills, power plants, nonferrous metals, mines, chemicals, textiles, chemical fibers, cement, paper making and other industries. Most of them adjust the air volume by adjusting the opening of the baffle, which wastes a lot of electricity. Adopting frequency conversion speed regulation can save electric energy, reduce mechanical wear and prolong the service life of equipment.

17, mixer load

There are many mixers in chemical and pharmaceutical industries, so it is very beneficial to replace other speed regulation methods with frequency conversion speed regulation.

18, spinning machine load

The spinning process is very complicated, there are many stations, which need tension control, and some also need position control. The frequency conversion speed regulation effect is good.