Unlock instant, AI-driven research and patent intelligence for your innovation.

The invention discloses a mMulti-load accurate consumption difference analysis method for a secondary reheating steam turbine

A technology for secondary reheating and differential consumption analysis, which is applied in the fields of instruments, sustainable manufacturing/processing, and data processing applications. Manage problems such as the consumption difference calculation system to achieve the effect of simple steps

Active Publication Date: 2019-04-12
GUODIAN NANJING ELECTRIC POWER TEST RES CO LTD
View PDF11 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • The invention discloses a mMulti-load accurate consumption difference analysis method for a secondary reheating steam turbine
  • The invention discloses a mMulti-load accurate consumption difference analysis method for a secondary reheating steam turbine
  • The invention discloses a mMulti-load accurate consumption difference analysis method for a secondary reheating steam turbine

Examples

Experimental program
Comparison scheme
Effect test

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 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a multi-load accurate consumption difference analysis method for a secondary reheating steam turbine. According to the invention, t, the operation data under the current load is obtained from the SIS system of the secondary reheating unit; a; and according to the current unit operation state, t, the unit power supply coal consumption rate change value caused by the fact that the operation data deviates from the target value under the current load is calculated, and the method has important significance for improving the operation economy and the energy-saving managementlevel of the secondary reheating unit and enhancing the economic benefits of power generation enterprises. Compared with the prior art, t, the consumption difference calculation result obtained by the consumption difference analysis method provided by the invention is more accurate, and the energy-saving management level of the steam turbine generator unit is effectively improved.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(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