An energy-saving transformation method of a hot-rolled high-pressure water descaling system based on an accumulator and a high-voltage frequency converter
A high-voltage inverter and high-pressure water descaling technology, which is applied in metal rolling, manufacturing tools, metal rolling, etc., can solve problems such as difficulty in meeting process requirements, inability to achieve descaling effects, and inability to achieve energy-saving effects. To achieve the effect of reducing energy consumption
Active Publication Date: 2018-04-20
北京金自能源科技发展有限公司
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Problems solved by technology
In the actual use process, the expected energy-saving effect is often not achieved, or it is difficult to meet the process requirements after transformation, and the expected descaling effect cannot be achieved.
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Embodiment
[0111] Take the descaling transformation of a project combined with the accumulator system of Chongqing Water Pump Plant and Beijing Jinzi Energy High Voltage Frequency Converter (AriVert series) as an example:
[0112] The overall energy-saving transformation system of high-voltage frequency converter and accumulator is constructed, including automation system, high-voltage frequency converter, high-voltage motor, descaling pump station, accumulator system and various descaling points. Among them, the high-voltage frequency converter and accumulator-related signals all enter the PLC system.
[0113] The first step is to select the accumulator according to the descaling water consumption in one rolling cycle;
[0114] Such as Figure 5 As shown, the rolling cycle is determined to be 134S; the descaling time required for the descaling point HSB is 13s, and the descaling interval between the descaling point HSB and the descaling point E1-1 is 17 seconds; the descaling time of t...
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The invention discloses an energy-saving modification method for a hot rolling high-pressure water scale removing system based on an energy accumulator and a high-voltage inverter. The method includes the following specific steps that firstly, the energy accumulator is selected according to the scale removing water consumption in a rolling period; secondly, the high-voltage inverter is selected according to the speed increase and decrease time of a scale removing pump and the rotational inertia of a motor; thirdly, the energy accumulator, the high-voltage inverter, the scale removing pump and the motor are connected and matched; and fourthly, the scale removing pump provided with the energy accumulator and the high-voltage inverter is put into production and use, and energy is saved. The method has the beneficial effects that the high-voltage inverter combined with an energy accumulator system is adopted as an energy-saving modification main device, the high-voltage inverter can use the scale removing interval for speed reduction to achieve energy-saving modification, the purposes of energy consumption reduction, energy conservation and emission reduction can be better achieved on the premise that the requirements of the production technology are met, and a whole energy-saving modification system with the high-voltage inverter and the energy accumulator is formed.
Description
technical field [0001] The invention belongs to the technical field of energy-saving transformation of a hot-rolling high-pressure water descaling system, and in particular relates to an energy-saving transformation method of a hot-rolling high-pressure water descaling system based on an accumulator and a high-voltage frequency converter. Background technique [0002] In the modern hot-rolled strip steel production line, high-pressure water descaling technology, as an important means to improve the surface quality of steel plate, is widely used. The motors of the high-pressure water descaling system are the main consumers of electric energy in steel mills. At present, the high-pressure water descaling motors in many domestic steel mills run for a long time at a constant speed at power frequency, which wastes a lot of electric energy. With the passage of time and the development of the times, the competition in the steel market has become increasingly intensified, the market ...
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IPC IPC(8): B21B45/08
CPCB21B45/08
Inventor 高健王勇李锋凯赵季王敏张景霖
Owner 北京金自能源科技发展有限公司