Recently, a new type of energy-saving matrix frequency conversion environmental protection elevator was successfully developed in Shandong Best Air Elevator Company. This product is a mechatronics product combining matrix variable frequency drag and permanent magnet synchronous gearless traction system. It is equipped with a “matrix inverter†(speed governor) with feedback function (with inverter), with power feedback function. (The input power factor can be controlled); the input power supply has less harmonics, which can reduce electric pollution; the main circuit has no electrolytic capacitor; it has the characteristics of AC-DC direct conversion. The large-distance, low-speed permanent magnet synchronous traction machine has the characteristics of high mechanical efficiency, low noise and no need to refuel. The test data shows that the energy saving effect of the elevator using this technology can reach 77.2% compared with the traditional elevator.
With the development of China's economy, energy and environmental issues have become an urgent problem to be solved. The development of elevator technology must also meet the actual situation in China. At present, the main way to save energy in elevators is to improve the operating efficiency of the motor. For example, the permanent magnet synchronous gearless traction machine has made a breakthrough in solving the mechanical loss and improving the load operation efficiency. At the same time, through the frequency conversion speed regulation technology and its optimized control scheme, the speed and the torque in the elevator running process are satisfied. "On-demand energy supply" can be achieved on the premise of requirements.
If through the integration of these two mature technologies, and further extension, using the inherent characteristics of the elevator operation - the potential energy load, the potential energy that the motor has switched to the load can be converted into electrical energy, and the feedback can be recycled, which will greatly reduce the elevator. The power consumption of the operation. The Best Energy-saving Matrix Frequency Conversion Environmental Elevator is developed based on such innovative ideas. This provides consumers with more valuable creative products.
Round Steel Bar
Round steel refers to a solid long strip of steel with a circular cross-section. Round steel is divided into three types: hot rolled, forged and cold drawn. The size of hot rolled round bar is 5.5-250 mm. Among them: small round bars of 5.5-25 mm are mostly supplied in bundles of straight strips, which are often used as steel bars, bolts and various mechanical parts; round bars larger than 25 mm are mainly used for the manufacture of mechanical parts and billets of seamless steel pipes Wait.
Round Steel Bar,Stainless Steel Round Bar,Round Bars,Mild Steel Round Bar
Shandong Rizhaoxin Metal Products Co., Ltd. , https://www.sdrizhaoxinsteel.com