Responsibility division method for turbine island and boiler island in performance acceptance of single-shaft combined cycle generating unit

Abstract

The invention discloses a responsibility division method for a turbine island and a boiler island in performance acceptance of a single-shaft combined cycle generating unit. By building performance models of triple-pressure, reheat and un-fired waste heat boilers and a performance model of a steam turbine free of a middle steam extraction function, the influence of boundary conditions of the waste heat boilers on outputs of the waste heat boilers is simulated, the influence of the boundary conditions on the power and heat consumption rate of the steam turbine is simulated, and correction curves of the waste heat boilers and a correction curve of the steam turbine are provided, so that the outputs of the waste heat boilers can be corrected and the power and heat consumption rate of the steam turbine also can be corrected; and in combination with a correction curve of a gas turbine provided by a manufacturer, all sub-devices of combined cycle and external characteristics of the whole combined cycle can be obtained. By utilizing the obtained correction curves, the performance deviation responsibilities of the turbine island and the boiler island are scientifically divided.

Description

technical field [0001] The invention belongs to the field of electric power, relates to the performance of waste heat boilers and steam turbines, and in particular relates to the division of responsibilities between machine islands and furnace islands in the performance acceptance of single-shaft combined cycle generator sets. Background technique [0002] Combined cycle power generation technology has the characteristics of high power generation efficiency, fast start and stop speed, and less pollution emission, and is more and more favored by my country's power industry, especially in my country's power grid. The characteristics of good performance can just make up for the lack of development of my country's power grid. Most of the large-scale combined cycle generators built in my country in recent years have a single-shaft structure. In order to reduce investment costs and absorb foreign advanced technology, in the purchase contract of combined cycle generators, the island...

AI Technical Summary

Problems solved by technology

[0003] Based on the problem that it is difficult to divide the responsibilities of the machine island and the furnace island in the performance acceptance of the single-shaft combined cycle generator set, the present invention provides a method for dividing the responsibilities of the machine island and the furnace island in the performance acceptance of the single-shaft combined cycle generator set. Divide the responsibility for the performance deviation of the generator island and the furnace island. If the performance of the combined cycle unit cannot meet the contract value, according to the research of this method, the relevant supplier can be held accountable for compensation

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