Fan Pump Frequency Conversion Energy Saving Principle and Application
Led Pixel Mapping,Pixel Mapping,Pixel Led Ceiling Light,Led Pixel Mapping Bar EV LIGHT Guangzhou Co., Ltd , https://www.evstagelights.com
December 08 14:04:05, 2024
Fan pump as a general industry, agriculture, life machinery, with a large amount of applications, the characteristics of a wide range of applications, the motor power consumption is huge. Statistics show that the total motor installed capacity in China is 450 million KW, and the total installed capacity of fans and pumps is 150 million KW. The power consumption can be above 20% of the total generating capacity of the country. Due to the capacity and process reasons, more than half of the fans and pumps have different levels of power wastes. As the energy supply is getting tighter today, reducing waste and saving energy has been the most important task, and an effective Power-saving products is particularly important. "National good" GJ fan pump energy saving control cabinet is directed against our fans, pump applications and development of energy-saving products defect. By the inverter plus external control, protection, display and other units and cabinets, using the latest microcomputer and automation technology, the traditional control methods into intelligent automatic control, greatly improving the efficiency of the motor to improve the motor drag system The overall performance, can effectively reduce the fan, pump operating power, extend the service life of the motor, saving rate can be as high as 20% or more, is the ideal energy-saving control equipment for modern fans, pumps. Product Principle The design of traditional environmental protection machine and pump flow are all designed according to the maximum demand. The adjustment method adopts the control method of baffle, damper, backflow, starting and stopping motor, etc., and can not form the closed-loop control nor the idea of ​​power saving However, in actual use, the flow rate varies with various factors (such as season, temperature, process, yield, etc.), often much smaller than the maximum flow rate. To reduce the flow, it is usually only possible to adjust the flap or the opening of the valve by adjusting the opening of the large valve / flap opening and closing. The essence of the valve control method is to change the flow by changing the resistance of the pipe network. However, when the required flow rate is reduced, the pressure increases but the reduction of the shaft power is limited. At this moment, excess fan and pump power As a result of the increased pressure, a great energy loss results. The principle of fluid mechanics shows that the flow rate is proportional to the square of the rotational speed, the pressure is proportional to the square root of the rotational speed, and the power is proportional to the third power of the rotational speed. STB fan pump frequency conversion energy-saving control cabinet can keep the valve, baffle opening unchanged under the premise of changing the fan speed to adjust the flow, in essence, by reducing the fluid power to save electricity. This control method can fundamentally eliminate fan, pump equipment due to the selection or load changes prevailing "big horse car" power waste phenomenon, eliminating the baffle throttling resistance, the fan, the pump is always running at the best Working condition Features 1) easy to install, applicability, saving rate can be as high as 20%. 2) Realize synchronous changes of motor power consumption and load demand, eliminate the phenomenon of "Big Horse car" and reduce the load on power distribution. 3) Has a good soft start soft stop function, to avoid strong current and mechanical impact, effectively extending equipment life. 4) Over-voltage, under-voltage, overload and other automatic protection features to prevent accidental damage to equipment. 5) manual and automatic power / electricity conversion function, to ensure the normal operation of equipment. 6) high power factor output, reduce reactive power loss and compensation capacity, reduce motor heat, additional loss and noise. 7) Improve equipment operating conditions, reduce mechanical wear and tear and maintenance, maintenance personnel expenses. 8) With RS485 communication interface function, you can achieve energy-saving system networking operation, monitoring and other functions. Scope of application Building buildings: blowers, circulating pumps, cooling towers, roof exhaust fan. Metallurgical industry: blower, dust blower, heater blower, cooling pump, water pump, cooling exhaust fan. Petrochemical industry: oil pump, sewage pump, water pump, pressure pump, oil pump, heating boiler blower, induced draft fan and so on. Power industry: boiler blower, induced draft fan, make up pump, circulating pump, hydrophobic pump, mortar pump, blower and so on. Textile fiber: blower, cooling towers, water pumps, boiler fans and so on. Paper mill: boiler fans, pumps, pulp machines and so on.