Method for energy-saving optimization of operation of fan of direct air-cooling system of power plant

Abstract

The invention discloses a method for energy-saving optimization of operation of a fan of a direct air-cooling system of a power plant. Data collection is realized by the aid of multiple steam turbine steam discharging pressure sensors and a direct air-cooling system fan total power sensor which are arranged on a power plant unit, and data are transmitted to a data collection unit and a calculation and display unit bidirectionally connected with the data collection unit. An optimal operation scheme is determined by a formula shown in the description. By the method, the problem of determining of the optimal operation scheme of the fan of the direct air-cooling unit air-cooling system is solved, the method is simple and convenient in measuring, and a guide can be provided for determining the optimal operation scheme of the direct air-cooling system on an operation site.

Description

technical field [0001] The invention relates to an energy-saving optimization method for the operation of a fan in a direct air cooling system of a power plant. Background technique [0002] With the increasing pressure of national energy saving and emission reduction, improving the operating economy of existing operating units, especially direct air cooling units, especially the operation optimization of direct air cooling system fans, has received more and more attention from power plants. This is mainly because: (1) Compared with the wet-cooled unit, the economy of the air-cooled unit is poor due to the high exhaust pressure of the steam turbine; (2) Compared with the wet-cooled unit, the operation of the air-cooled unit is affected by the environmental conditions Obviously, for example, the exhaust pressure of a general air-cooled steam turbine ranges from 8kPa to 30kPa; (3) The fan speed control of the direct air-cooling system is generally adjusted by variable frequenc...

AI Technical Summary

Problems solved by technology

This is mainly because: (1) Compared with the wet-cooled unit, the economy of the air-cooled unit is poor due to the high exhaust pressure of the steam turbine; (2) Compared with the wet-cooled unit, the operation of the air-cooled unit is affected by the environmental conditions Obviously, for example, the exhaust pressure of a general air-cooled steam turbine ranges from 8kPa to 30kPa; (3) The fan speed control of the direct air-cooling system is generally adjusted by variable frequency, and there are many operation schemes for the fan speed. energy saving potential

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