Method for detecting heat economic life of industrial boiler

A technology of industrial boilers and detection methods, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of not considering the economic benefits of industrial boilers, being unable to adapt, wasting energy maintenance funds, etc.

Inactive Publication Date: 2015-01-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The update basis of existing industrial boilers is mainly based on the service life of the above-mentioned system. This update basis for industrial boilers has the following shortcomings or deficiencies: ① The economic benefits of indu

Method used

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  • Method for detecting heat economic life of industrial boiler
  • Method for detecting heat economic life of industrial boiler
  • Method for detecting heat economic life of industrial boiler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0152] The following is an example of the detection process of the thermal economic life of industrial boilers in actual operation:

[0153] 1. Now take a 20t / h oil-fired saturated steam boiler (with a rated pressure of 2.5Mpa) as an example to determine its thermal economic life. The operating characteristics of this steam boiler are that the load change law of operation in one day is: X=0.308+ 0.121·t-0.00504·t 2 ;[t is time, the value range is (0~24h)]. The relationship between the change of the steam boiler load and the change of the available energy efficiency is:

[0154] n ex (X)=0.115+0.750·X-0.406·X 2 +0.003·X 3 .

[0155] Table 1 Test data of available energy efficiency of 20t / h oil-fired saturated steam boiler changing with heat load

[0156]

[0157] Table 2 Historical data of available energy efficiency of 20t / h oil-fired saturated steam boiler over time

[0158]

[0159]

[0160] Table 2 continued

[0161]

[0162] The relationship of the availa...

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Abstract

The invention provides a method for detecting the heat economic life of an industrial boiler. The method comprises the steps that an industrial boiler available energy balance physical model is established, an industrial boiler available energy economic balance physical model is established, and an industrial boiler heat economic life mathematic model is established; the changing relationship between industrial boiler available energy efficiency and heating loads is determined, the changing relationship between industrial boiler heat loads and time is determined, and the changing relationship between industrial boiler available energy efficiency and time is determined; the heat economic life of the industrial boiler is solved. According to the method for detecting the heat economic life of the industrial boiler, an effective processing method of the changing relationship between the industrial boiler available energy efficiency and the heat loads and the relationship between the industrial boiler available energy efficiency and the operation time is provided, and the method has the advantages of being simple, practical, easy to be programmed, capable of accurately determining the heat economic life of the industrial boiler, and capable of effectively supporting site production activities.

Description

technical field [0001] The invention relates to a detection method for a boiler, in particular to a detection method for the thermal economic life of an industrial boiler. Background technique [0002] Industrial boilers are important energy-consuming equipment in production and life. After industrial boilers are put into operation, as time goes by, due to wear and tear of components, corrosion and scaling of heating surfaces, changes in the characteristics of insulation materials, and aging of materials, etc., As a result, the efficiency of the available energy of the industrial boiler system (exergy, the available energy of the working fluid in the thermal system, which is used to determine the part of the given energy that may make useful work in a specified state) decreases, the maintenance cost increases, and the system brings economic benefits to decline. When the industrial boiler system is put into operation at a certain moment, the system can no longer be operated ...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 邓寿禄王强王贵生赵志宝冯国栋杨国芳周亮许涛杨秀丽郑炜博胡晓峰
Owner CHINA PETROLEUM & CHEM CORP
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