Method for quantitatively evaluating safety of boiler parts

A technology for safety evaluation and boiler parts, which is applied in the field of boilers and can solve the problems of inability to determine the quantitative evaluation results of the safety of boiler parts, and the lack of suitability.

Inactive Publication Date: 2009-04-15
SHANGHAI POWER EQUIP RES INST +1
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  • Abstract
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Problems solved by technology

[0002] In the use stage of the boiler, the efficiency of the boiler can be determined through the test, and the statistical results of the reliability of the boiler operation can be determined through the statistical analysis of the operating data, but the quantitative evaluation results of the safety of the boiler components cannot be determined.
The "Safety Evaluation of Thermal Power Plants" adopted by the power industry uses a qualitative evaluation method. The total score for a given boiler and its auxiliary systems is 1200 points, of which the operating condition is 470 points, and the te

Method used

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  • Method for quantitatively evaluating safety of boiler parts
  • Method for quantitatively evaluating safety of boiler parts
  • Method for quantitatively evaluating safety of boiler parts

Examples

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Embodiment

[0068] For the economizer tube of a certain type of 300MW utility boiler, adopt figure 1 The flow chart of the quantitative evaluation method for the safety of boiler components and the program written in C language are shown and installed in the computer of the production safety supervision department of the power station. figure 2 The computer software for the quantitative evaluation of the safety of the boiler components is shown, and the calculated results of the quantitative evaluation of the safety of the economizer tubes of this type of boiler are listed in image 3 .

[0069] Step 1: Select the economizer pipe of this type of boiler as the safety evaluation object;

[0070] The second step: in the 8th year when the boiler of this type is put into operation, conduct the second quantitative safety evaluation;

[0071] Step 3: Referring to the existing boiler reliability statistics method, the damage locations of the economizer pipes of this type of boiler are: pipes (...

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Abstract

The invention relates to a method for quantitatively evaluating the safety of a boiler component. The method is characterized in that a mean interval years between boiler shutdown, a mean boiler shutdown time, the boiler shutdown failure consequences and cumulative service life loss of the boiler component are used to quantitatively compute a failure criticality of the boiler component, quantitatively evaluate the safety of the boiler component in use and guide safety supervision and equipment overhaul of the boiler component. The method has the advantages that the safety of the boiler component is quantitatively described by the failure criticality and the proposed overhaul is arranged according to the failure criticality of the boiler component even if the safety of the boiler component is in a supervision and controlled state, which realizes the technical effect of avoiding a fault mode of the boiler component with severe criticality while improving the safety of the boiler component.

Description

technical field [0001] The invention relates to a quantitative evaluation method for the safety of boiler parts, which is applied to the quantitative evaluation of the safety status of boiler parts and belongs to the technical field of boilers. Background technique [0002] In the use stage of the boiler, the efficiency of the boiler can be determined through the test, and the statistical results of the reliability of the boiler operation can be determined through the statistical analysis of the operating data, but the quantitative evaluation results of the safety of the boiler components cannot be determined. The "Safety Evaluation of Thermal Power Plants" adopted by the power industry uses a qualitative evaluation method. The total score for a given boiler and its auxiliary systems is 1200 points, of which the operating condition is 470 points, and the technical status of the main equipment and auxiliary equipment is 410 points, 120 points for ash removal and slag removal ...

Claims

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Application Information

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IPC IPC(8): G06F19/00F22B7/02
Inventor 史进渊杨宇邓志成
Owner SHANGHAI POWER EQUIP RES INST
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