subject: High Voltage Inverter Energy [print this page] Through the development of recent years, high frequency control technology has matured, has been widely applied in various fields began, the original iron and steel enterprises in a large number of fans, pumps and other equipment have been under-frequency operation are required to gate control air flow, flow, thus a great loss of energy, instead of after the frequency control by changing the motor speed (that is to change the motor's output power) to regulate air flow, flow, reducing drag consumption, in order to achieve energy conservation purpose.
Development in recent years, High pressure Frequency control technology has matured, has been widely applied in various fields began, Steel A lot of fans in the original company, water Pump And other equipment have been under-frequency operation, need to use the valve to control air flow, flow, thus a great loss of energy, instead of after the frequency control by changing the Motor Speed (that is to change the motor's output power) to regulate air flow, flow, reducing drag consumption to achieve the conservation of energy.
Take Xingtai Iron and Steel Co., 2 sets of 75T Power Plant Gas Boiler Fan of frequency rebuilding project specific analysis of high-voltage energy saving inverter technology.
Power plant owned two 75T existing gas-fired boiler power plant, the auxiliary high-pressure induced draft fan motor is 400kw, the original operation mode for the operating frequency, in order to maintain nearly constant negative pressure inside the boiler furnace, be controlled by regulating the import of throttle. Import actual throttle opening degree in the 36% -40%, and the action frequently, so a considerable portion of power consumption on the throttle wasted. To change this state, the development of recycling economy, achieve energy Environmental protection To ensure sustainable development of enterprises. Frequency implementation of high voltage electrical
transformation through Inverter Output of different frequency, to change the motor speed (that is, to change the motor's output power) to adjust the fan flow to the boiler furnace negative pressure remained constant; import damper is fully open state, reducing resistance to consumption is far lower motor rated power of the state in running order to achieve conservation of energy. Increase the bypass cabinet as a backup, when the inverter fails, you can switch to the frequency the motor running, then it will play a converter of energy-saving advantages, but also ensure the safe production. Throttle control of the import role of regulation is limited to running frequency.
Selection of the project through technical and economic applicability of comparison, the selected co-Beijing Hong Sheng Technology Co., Ltd. General Contracting billion to implement, through the implementation only to satisfy the technical requirements, and Energy-saving effect is very obvious Saving Rate of over 50%
Actively promote the transformation of high-voltage electrical frequency, the frequency often do not need to run under full load can meet the technological requirements of the fan and pump motor frequency transformation of class, lack of own funds can take advantage of energy rebate fat contract model , so that owners of units without direct investment, but also saves energy and reduces Energy Consumption. New projects should also be designed to take full account of the role of energy-saving frequency converter, operating conditions change frequently, sometimes at full load conditions without running the motor to install converter as much as possible, has to achieve energy saving. Only in this way companies can meet the requirements of modern society, energy conservation, saving enterprise beneficial to promote the sustainable development of enterprises.
