Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Operation back pressure continuous optimized control method and system for wet cooling steam turbine

An optimized control and steam turbine technology, applied in mechanical equipment, engine components, machines/engines, etc., can solve the problems of time-varying factors that are easy to change and difficult to measure directly, achieve ideal practical results, accurately predict changes in energy consumption, Highly Accurate Effects

Active Publication Date: 2016-05-11
BEIJING CYNERTEC CO LTD
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] Time-varying factors are prone to change and are often difficult to measure directly

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
  • Operation back pressure continuous optimized control method and system for wet cooling steam turbine
  • Operation back pressure continuous optimized control method and system for wet cooling steam turbine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0119] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0120] Such as figure 1 As shown, it is a method for continuously optimizing the operation back pressure of a wet-cooled steam turbine described in Embodiment 1 of the present invention, which specifically includes the following steps:

[0121] Primary model building steps: building a hydraulic model of the cold source system;

[0122] Establish the pressure head model and power model of the circulating water pump group with the operating mode parameters of the circulating water pump group as independent variables;

[0123] Establish a condenser model for determining the relationship between the cooling medium flow rate, the cooling medium inlet and outlet temperature and the condenser saturation temperature;

[0...

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 relates to an operation back pressure continuous optimized control method and system for a wet cooling steam turbine. The method includes the steps that a primary model is built; a hydraulic model of a cold source system is built; a pressing head model and a power model are built; a condenser model is built; a time-varying factor model is built; a secondary model is built; a back pressure model is built; a steam turbine heat rate model used for determining the relation between the steam turbine cycling heat rate and generator unit back pressure is built; control is optimized, under the condition of current power generation power, according to the power model, a back pressure module and the heat rate model, cold source power consumption and fuel consumption of different cold source operation modes are calculated, and an optimal solution of cold source optimized control is obtained. The method and system completely break through substantive technical barriers of the background technology, key technologies of vacuum continuous optimized control of a large power plant steam turbine set are completely achieved for the first time, the historical subject is solved, and an ideal application effect is achieved in practice.

Description

technical field [0001] The invention relates to a continuous optimization control method and system for wet-cooled steam turbine operation back pressure, which belongs to the field of optimal control of condensing steam turbine cycles in large-scale thermal power generation processes such as coal-fired, gas-fired and nuclear energy, especially the operation back pressure of wet-cooled steam turbines or Optimal control of the vacuum field. Background technique [0002] The cooling system of the steam turbine circulating condenser of a large wet-cooled generating set is the cold source system. The cooling medium, that is, the circulating water, is delivered through a parallel water pump system driven by multiple motors and equipped with a frequency converter for speed regulation. Therefore, a large amount of water is consumed electrical energy. When equipped with a frequency converter, or the water pump itself has the ability to adjust the flow, the cold source system can con...

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
IPC IPC(8): F01D21/00G06F17/50F28B11/00
CPCY02E60/00
Inventor 王砧
Owner BEIJING CYNERTEC CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com