YASKAWA INVERTER INTRODUCTION
YASKAWA INVERTER is known as "YASKAWA AC Frequency Regulator", which is mainly used for three-phase asynchronous AC motors for controlling and regulating the speed of the motor. When the motor's operating current frequency is lower than 50Hz, it will save electricity, so the frequency converter is one of the energy-saving products promoted by the state. With the popularization of energy saving and the promotion of industrial automation, the use of inverters is increasing, and there are tens of billions of sales in China every year. YASKAWA inverter is one of the world-famous inverters, produced by YASKAWA ELECTRIC CORPORATION, which has a relatively high share in the world. Now Yaskawa Electric Corporation has a production plant in Shanghai, China, specializing in the production of CIMR-G/CIMR-F/CIMR-E/CIMR-L series of inverters.
Yaskawa inverter applications
1, air conditioning load class
Office buildings, shopping malls and some supermarkets, factories have central air conditioning, in the summer peak of electricity consumption, air conditioning power consumption is very large. In the hot weather, Shanghai, Shanghai, Shenzhen, air conditioning power consumption are accounted for more than 40% of the peak power. Therefore, it is a very good power-saving technology to use frequency conversion device to drag the refrigerating pump, chilled water pump and fan of air-conditioning system. Yaskawa frequency converter is very wide range of applications, the same Yaskawa frequency converter repair and maintenance should also pay attention to.
2, crusher load
Metallurgy, mining, building materials, a lot of crusher, ball mill applications, this type of load using inverter after the effect is significant.
3, large-scale kiln calciner class load
Metallurgy, building materials, caustic soda and other large-scale industrial kilns (converter) before most of the use of DC, rectifier motors, slip motor, cascade speed control or intermediate-frequency unit speed control. Due to these speed control or slip ring or low efficiency, in recent years, many units using frequency control, the effect is excellent.
4, compressor load
Compressor also belongs to a wide range of applications class load. Low-pressure compressor in various industrial sectors are commonly used, high-pressure large-capacity compressor in the steel (such as oxygen generator), mining, fertilizer, ethylene have more applications. The use of frequency conversion speed control, are brought to start the current is small, power saving, optimize the service life of the equipment and other advantages. It is also important to pay attention to Yaskawa frequency converter repair and maintenance.
5, mill load
In the metallurgical industry, in the past, large mills with AC-AC frequency converter, in recent years the use of AC-DC-AC frequency converter, mill AC has been a trend, especially in the light-loaded mills, such as Ningxia National Aluminum Products Factory, the multi-stand aluminum rolling unit using a general-purpose frequency converter to meet the low-frequency loaded start-up, synchronous operation between the racks, constant-tension control, easy to operate and reliable. Reliable.
6, winch load
The winch load adopts frequency conversion speed control, which is stable and reliable. Blast furnace winch equipment of iron plant is the main ironmaking raw material transportation equipment. It requires smooth starting and braking, uniform acceleration and deceleration, and high reliability. The original mostly used series, DC or rotor string resistance speed regulation, low efficiency, poor reliability. To pay attention to Yaskawa frequency converter maintenance with AC frequency converter instead of the above speed regulation, you can achieve the desired results.
7, converter class load
Converter class load, AC frequency conversion instead of DC unit is simple and reliable, stable operation.
8, roller conveyor load
Roller conveyor load, mostly in the iron and steel metallurgy industry, the use of AC motor frequency control, pay attention to the YASKAWA frequency converter maintenance can improve the reliability and stability of the equipment.
9, pump loads
Pump loads, a wide range of large quantities, including water pumps, oil pumps, chemical pumps, mud pumps, sand pumps, etc., there are low-voltage small and medium-capacity pumps, high-pressure large-capacity pumps.
Many water pumps, chemical pumps in the chemical and fertilizer industries, reciprocating pumps, non-ferrous metals and other industries, such as slurry pumps using frequency conversion speed control, have produced very good results.
10, cranes, dump trucks load
Cranes, dump trucks and other loads with large torque and require smooth, frequent and reliable forward and reverse. Frequency conversion device control cranes, dumpers can meet these requirements.
11, wire drawing machine load
The production of steel wire drawing machine, high-speed, continuous production. Steel wire strength of 200Kg/mm, speed control system requires high precision, high stability and synchronization.
12, delivery vehicle load
Coal mine coal loading trucks or steel mill steel delivery trucks, etc. The use of frequency conversion technology is very effective. Starting and stopping fast, strong overload capacity, forward and reverse rotation flexibility, to achieve a smooth coal surface, the correct weight (not more or less loaded), basically do not need to be manually operated, to pay attention to the Yaskawa frequency converter maintenance to improve the efficiency of the raw coal production, saving electrical energy.
13, elevator elevated tour car class load
Because the elevator is a manned tool, the requirement of a highly reliable drag system, but also frequent acceleration and deceleration and forward and reverse, the elevator dynamic characteristics and reliability of the elevator to improve the side of the elevator ride the sense of security, comfort and efficiency. In the past, the elevator speed control DC mostly, and in recent years, it has gradually turned to AC motor frequency control, no matter it is Japan or Germany. Many elevator factories in China are scrambling to equip elevators with frequency conversion speed control. For example, Shanghai Mitsubishi, Guangzhou Hitachi, Qingdao Fuji, Tianjin Otis, etc. all adopt AC frequency conversion speed regulation. Many of the original production of the elevator also carried out frequency conversion.
14, feeder load
Metallurgy, electric power, coal, chemical and other industries, there are many feeders, regardless of the disc feeder or vibrating feeder, the use of frequency conversion speed control is very significant. The disc feeder of sulfuric acid production line in dye plant of Jihua Company is originally a slip speed regulation, with small torque at low frequency, many failures and frequent jamming. After the use of frequency conversion speed control, because it is an asynchronous machine, high reliability, power saving, more importantly, and temperature transmitter closed loop to ensure the accuracy of the conveyed material, to pay attention to the Yaskawa frequency converter maintenance does not make the oxidizer conveyance excessive over-temperature and cause accidents, to ensure that the production of the orderly nature.
15, stacking and reclaiming machine class load
Stacking and reclaiming machine is the coal yard, dock, mine material stacking and taking of the main equipment, the main function is to stacking and reclaiming. Realization of automatic stacking and semi-automatic reclaiming, improve the reliability of the equipment, equipment running smoothly, no impact and shaking phenomenon, the reclaiming process according to the 1/cosφ law of rotary speed regulation, improve the efficiency of the bucket wheel rotary reclaiming and the uniformity of the belt coal transport, very popular with workers.
16, fan load
Fan load, is a large amount of wide range of equipment, steel mills, power plants, non-ferrous metals, mines, chemicals, textiles, chemical fibers, cement, paper and other industries apply more. Most of the use of adjustable baffle open to adjust the air volume, a waste of large amounts of electricity, the use of frequency conversion speed control, which can save electricity and reduce mechanical wear and tear, to extend the life of the equipment.
17, mixer load
Chemical and pharmaceutical industries, mixers are very much, the use of frequency control instead of other speed control, the benefits of many.
18, spinning machine class load
The spinning process is complex, many workstations, the requirements of tension control, some require position control. The use of frequency conversion speed control is good.