On-line Monitoring Method of Boiling Degree of Blast Furnace Gas Boiler Economizer

Abstract

The invention discloses a blast-furnace gas boiler economizer boiling degree on-line monitoring device and method. The monitoring device comprises a data acquisition unit and a data processing unit. Operating data of a gas boiler are collected through a unit distributed control system, the collected operating data are stored in a real-time database server and a mirror database server, a calculation server reads the operating data from the mirror database server and processes the operating data to obtain economizer boiling degree calculation results, the calculation results are stored in the mirror database server, a WEB publishing server publishes the calculation results to a user display terminal, and a user can look up the calculation results in real time through the user display terminal and master the operating conditions of an economizer in time. If the economizer boiling degree excesses a set upper limit value, the user can lower the economizer boiling degree in time through the boiler operation adjustment, so that the economizer is in the safety state, the safety operation of the blast-furnace gas boiler is accordingly guaranteed, and the service life of the blast-furnace gas boiler economizer is accordingly prolonged.

Description

technical field [0001] The invention relates to the technical field of boilers in thermal energy engineering, in particular to an online monitoring method for the boiling degree of an economizer of a blast furnace gas boiler. Background technique [0002] Iron and steel enterprises produce a large amount of by-product gas during the smelting process, including blast furnace gas, converter gas and coke oven gas. Among them, blast furnace gas is produced in the ironmaking process, and its quantity is the largest among the three types of gas. However, due to the high nitrogen content of blast furnace gas, low calorific value and poor combustion stability, many iron and steel plants do not fully utilize blast furnace gas, and a large amount of blast furnace gas is directly released, resulting in a huge waste of energy. How to make good use of the precious blast furnace gas resources has always been a common concern of relevant technical personnel in iron and steel plants. [0...

AI Technical Summary

Problems solved by technology

This mode can meet the operating requirements of blast furnace gas boilers to a certain extent, but this artificial experience mode cannot guarantee that the judgment results are completely accurate, and the reliability of this mode depends entirely on the experience level of the operating personnel, and each operation The levels of personnel are uneven, high and low, which will cause great hidden dangers to the safe operation of the economizer

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