Dynamic operation characteristic modeling method for waste heat boiler
A waste heat boiler, dynamic operation technology, applied in special data processing applications, instruments, calculations, etc., can solve problems such as poor versatility, reduced model accuracy, and unfavorable accurate acquisition of boiler dynamic operation characteristics.
Pending Publication Date: 2019-07-05
JIANGSU FRONTIER ELECTRIC TECH +2
View PDF2 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Establish the mathematical model of the waste heat boiler. The traditional modeling method is more suitable for specific waste heat boilers, and the versatility is not strong. The model needs to be re-established for different waste heat boilers, and the modeling efficiency is low. Secondly, for the boiler flue gas side The common modeling method is to simplify the flue gas sweeping single-tube heat transfer model, which reduces the accuracy of the model to a certain extent and is not conducive to the accurate acquisition of the dynamic operating characteristics of the boiler.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0105] In order to further clarify the technical scheme and working principle of the present invention, the following takes the modeling of a natural circulation dual-pressure waste heat boiler as an example to introduce the present invention in detail.
[0106] The boiler is a double-pressure non-reheating, self-deoxygenating, horizontal, non-supplementary combustion, natural circulation waste heat boiler for a newly-built combined cycle power station, and there is no bypass flue. It matches with the SGT5-2000E gas turbine that burns natural gas.
[0107] Such as figure 1 As shown, the natural circulation dual-pressure waste heat boiler includes a first low-pressure economizer, a second low-pressure economizer, a low-pressure evaporator, a low-pressure superheater, a high-pressure economizer, a first high-pressure superheater, and a second high-pressure superheater Components such as the device, high-pressure steam drum, and low-pressure steam drum, etc., where the "low pres...
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
Login to View More Abstract
The invention provides a dynamic operation characteristic modeling method for a waste heat boiler. The method is characterized in that the components such as an evaporation heating surface, a steam pocket, a coal economizer, a superheater and a reheater of the waste heat boiler are divided into three modules such as a phase change heating surface, a non-phase change heating surface and a steam pocket, modeling is conducted on each module from the heat exchange angle, the heat storage angle and the flowing angle, a dynamic model of the waste heat boiler is established through a sequential module method, so that the dynamic operation characteristic of the waste heat boiler is obtained. According to the method, the waste heat boilers with different arrangements and different capacities can beconveniently and rapidly modeled, the dynamic operation characteristics of the waste heat boilers are obtained, the understanding of the characteristics of the waste heat boilers is facilitated, andthe operation adjustment of the waste heat boilers can be guided.
Description
technical field [0001] The invention relates to the technical field of power generation, in particular to a modeling method for dynamic operating characteristics of waste heat boilers. Background technique [0002] Large-scale gas-steam combined cycle units are increasingly being used in power production and heat supply. As the intermediate link connecting the gas turbine and steam turbine in the combined cycle, the performance of the waste heat boiler has an important impact on the safety and economy of the combined cycle. Due to the frequent start and stop of combined cycle units and frequent load changes, when disturbances occur, the operating parameters of the boiler may be greatly affected. Whether it is the simulation of the waste heat boiler, the prediction model in the control of the waste heat boiler, or the adjustment of the operation of the waste heat boiler by the operator, it is necessary to understand the dynamic characteristics of the waste heat boiler, which...
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
Login to View More IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 王亚欧陈波张恩先岳峻峰陈有福肖杰陶谦杨振耿察民蔡亮贾涛许亦然何鹏飞
Owner JIANGSU FRONTIER ELECTRIC TECH