Intelligent soot blowing system of air pre-heater

Abstract

The invention provides an intelligent soot blowing system for an air pre-heater, and relates to the field of air pre-heaters, the intelligent soot blowing system comprises a heat transfer element blockage detection module, a soot blowing module and a visual monitoring module, the heat transfer element blockage detection module is used for detecting the specific blockage position of a heat transfer element of the air pre-heater, and the soot blowing module is used for purging and cleaning blockage in the heat transfer element. The visual monitoring module is used for monitoring the blockage and loss conditions of the heat transfer element of the air pre-heater and the surface temperature of the heat transfer element in real time; the modules achieve automatic interlocking control through the main control cabinet, when the heat transfer element blocking detection module detects that a certain area of the air pre-heater is blocked, the intelligent soot blowing system can control the soot blower to directly move to the blocked area in time, a corresponding blowing mode is adopted for processing, and therefore the air pre-heater is prevented from being blocked. Compared with a manual integral purging mode at present, the method is faster in time efficiency, more intelligent and more accurate in judgment, further reduces the consumption of a purging medium, and provides reliable guarantee for energy-saving, emission-reducing and green operation of the boiler.

Description

technical field [0001] The invention belongs to the field of air preheaters, in particular to an intelligent soot blowing system for air preheaters. Background technique [0002] At present, the problem of air preheater blockage has become a common and stubborn problem. Air preheater congestion has always been a pain point in the operation of the unit, and the reasons for the blockage are also various. The ammonium hydrogen sulfate produced by the reaction with sulfur trioxide will have a serious negative impact on the rotary preheater. It has a significant impact on the normal operation of the boiler and boiler. [0003] At present, the treatment plan for the blockage of the heat transfer element of the air preheater mainly adopts measures such as increasing the height of the cold end element and flushing with high-pressure water. Ammonium is deposited in a certain area of ​​the cold end element of the air preheater. With the continuous adsorption of ash, the entire eleme...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to accurately locate and detect the specific position where the heat transfer element of the air preheater is blocked, to control the soot blower to move to the blocked area in time, and to adopt the corresponding blowing method to clean up

Images