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High-usability designing method and evaluation for boiler of power plant station

A power plant boiler and design method technology, applied to steam boiler components, steam boilers, steam boiler accessories, etc.

Inactive Publication Date: 2008-04-02
SHANGHAI POWER EQUIP RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no suitable method for the quantitative evaluation and improvement of the usability design of utility boilers

Method used

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  • High-usability designing method and evaluation for boiler of power plant station
  • High-usability designing method and evaluation for boiler of power plant station
  • High-usability designing method and evaluation for boiler of power plant station

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Experimental program
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Effect test

Embodiment

[0050] As shown in Figure 1, the outlet temperature of superheated steam and reheated steam of a certain type of ultra-supercritical 600MW utility boiler is 603°C. The control and protection subsystem, soot blowing and sewage discharge and hydrophobic subsystem are composed, and its usability block diagram is shown in Figure 2.

[0051] As shown in Figure 3, it is a flow chart of the method adopted in the present invention, and the design method and evaluation method thereof for the high availability of the utility boiler are:

[0052] Firstly, according to the outlet temperature of the superheated steam and reheated steam of the power plant boiler is 603°C, the pipes of the high-temperature superheater and high-temperature reheater are made of 12% Cr steel, and the headers and pipes of the high-temperature superheater and high-temperature reheater are made of 9% Cr steel. Cr steel, calculated from Table 1, k 1=0.002+0.001+0.001+0.002+0.001+0.001=0.008; the strength design is...

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Abstract

The invention includes the following steps of determining design synthetic ratio; determining the availabilities of a power station boiler; the power station boiler fuel and a combustion subsystem, the rotary air preheater of the power station boiler and a motor, a power station boiler control and protection subsystem and a soot-blowing, pollution-discharging and trapping subsystem of the power station boiler; determining the planned off-the-line factor of the power station boiler and counting the available factor of the power station boiler.

Description

technical field [0001] The invention relates to a high-availability design method of a power station boiler and an evaluation method thereof, which are applied to the design calculation and improvement of the availability of the power station boiler, and belong to the technical field of the power station boiler. Background technique [0002] A utility boiler is composed of a boiler body, a fuel and combustion subsystem, a rotary air preheater and an electric motor, a control and protection subsystem, a soot blowing and blowdown, and a drainage subsystem. The index for evaluating the availability of a utility boiler is the availability coefficient. In the use stage of the power plant boiler, the statistical results of the available coefficient of the power plant boiler can be determined through the statistical analysis of the operating data of the power plant boiler, but the available coefficient of the power plant boiler design cannot be determined in the design stage. The e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F22B37/02G06F17/50
CPCY02T10/82
Inventor 史进渊杨宇邓志成陈明强
Owner SHANGHAI POWER EQUIP RES INST
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