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A Multi-Load Accurate Consumption Differential Analysis Method for Double-Reheat Steam Turbine

A technology for secondary reheating and differential consumption analysis, applied in data processing applications, energy industry, sustainable manufacturing/processing, etc., can solve the problem of low model accuracy, rare consumption differential models, and rare consumption differential analysis methods and other issues, to achieve the effect of enhancing the energy-saving management level, improving the operation economy, and the steps are simple and easy.

Active Publication Date: 2021-11-12
GUODIAN NANJING ELECTRIC POWER TEST RES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been found in practice that there are not many analysis methods for the consumption difference of double reheat units, especially the consumption difference model under different loads is relatively rare
At the same time, the general consumption difference analysis is mostly calculated based on theoretical methods such as equivalent enthalpy drop, which has a certain deviation from the actual result, and has the disadvantage of low accuracy of the model
At present, there is no consumption difference calculation system that can accurately guide the energy-saving management and economical operation of the double reheat unit under different loads

Method used

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  • A Multi-Load Accurate Consumption Differential Analysis Method for Double-Reheat Steam Turbine
  • A Multi-Load Accurate Consumption Differential Analysis Method for Double-Reheat Steam Turbine
  • A Multi-Load Accurate Consumption Differential Analysis Method for Double-Reheat Steam Turbine

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Embodiment 1

[0044] In this embodiment, a double-reheat steam turbine multi-load accurate differential analysis method provided by the present invention is used to perform multiple-load accurate differential analysis on a 600MW ultra-supercritical double-reheat unit, as shown in figure 1 As shown, its analysis method includes the following specific steps:

[0045] 1) Establish a corresponding load-by-load differential consumption model for the steam turbine operating data, and save it in the differential consumption model library; among them, the operating data include: main steam temperature, main steam pressure, primary reheat temperature, secondary reheat temperature, unit Back pressure, ultra-high pressure cylinder efficiency, high pressure cylinder efficiency, medium pressure cylinder efficiency and low pressure cylinder efficiency; the consumption difference model is the impact model of the difference between the operating data and its target value on the coal consumption rate of the ...

Embodiment 2

[0103] In this embodiment, a double-reheat steam turbine multi-load accurate consumption difference analysis method provided by the present invention is used to perform multi-load accurate consumption difference analysis on a 1000MW class ultra-supercritical double-reheat unit, as shown in figure 1 As shown, its analysis method includes the following specific steps:

[0104] 1) Establish a corresponding load-by-load differential consumption model for the steam turbine operating data, and save it in the differential consumption model library; among them, the operating data include: main steam temperature, main steam pressure, primary reheat temperature, secondary reheat temperature, unit Back pressure, ultra-high pressure cylinder efficiency, high pressure cylinder efficiency, medium pressure cylinder efficiency and low pressure cylinder efficiency; the consumption difference model is the impact model of the difference between the operating data and its target value on the coal ...

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Abstract

The invention discloses a double reheat steam turbine multi-load accurate consumption difference analysis method. The invention obtains the operating data under the current load from the SIS system of the double reheat unit, and calculates the current load under the current unit according to the current unit operating state. The change value of unit power supply coal consumption rate caused by the deviation of operating data from the target value is of great significance for improving the operating economy of the double reheat unit, the level of energy conservation management, and enhancing the economic benefits of power generation enterprises. Compared with the prior art, the calculation result of the consumption difference obtained by the consumption difference analysis method provided by the invention is more accurate, and effectively improves the energy-saving management level of the steam turbine generator set.

Description

Technical field: [0001] The invention relates to a method for analyzing the multi-load accurate consumption difference of a twice-reheated steam turbine, belonging to the technical field of steam turbine generator sets. Background technique: [0002] The clean and efficient utilization of coal is of great significance to my country's energy strategy. Power generation is one of the main directions for clean and efficient utilization of coal. At present, domestic double reheat units have been put into operation one after another, and the development of a consumption difference analysis system for double reheat units is of great significance for improving the operating economy of double reheat units, energy-saving management level and enhancing the economic benefits of power generation enterprises. [0003] The consumption difference analysis is an important aspect to improve the energy-saving management level of the turbo-generator unit. However, it has been found in practic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/067G06Q50/06Y02P80/15
Inventor 谭锐徐星
Owner GUODIAN NANJING ELECTRIC POWER TEST RES CO LTD