Rake type soot blower rake pipe wheel supporting and lifting mechanism

Abstract

The invention discloses a rake type soot blower rake pipe wheel supporting and lifting mechanism which comprises a main gun pipe, a transverse rake pipe and supporting pipes. The main gun pipe is connected to the center position of an inner cavity of the transverse rake pipe in an inserted manner, and the supporting pipes are located above the transverse rake pipe. Wheel frames are welded to the two sides of the transverse rake pipe through connecting parts, and the wheel frames are connected to the supporting pipes through wheels in a sleeving manner. The connecting positions of the transverse rake pipe and the wheel frames are fixedly connected with one ends of oblique tension pipes, and the other ends of the oblique tension pipes are fixed to the main gun pipe. The rake type soot blowerpipe wheel supporting and lifting mechanism is simple in structure, rake pipe wheel mechanisms are directly fixed to the two sides of the rake pipe, the oblique tension pipes are adopted between thefixing points and a main soot blowing pipe for strengthening, supporting can be achieved, guiding can also be achieved, the situation that the space above the main gun pipe is small can be effectivelyavoided, the longer the gun pipe is, the farer the gravity center of the transverse rake pipe gets away from the main gun pipe, the wheel supporting and lifting mechanism can be supported and liftedat the gravity center of the transverse rake pipe, and the running stability of the rake pipe in a furnace is improved.

Description

technical field [0001] The invention relates to the technical field of a boiler SCR reactor soot blower, in particular to a rake tube roller support mechanism of a rake type soot blower. Background technique [0002] The rake soot blower is a telescopic soot blower, which is mainly used to purge the flue gas denitrification device of the power station boiler, in the finned tube economizer of the boiler, the tube air preheater and some small boilers. It is also widely used in convection tube bundles and sections where the smoke temperature of some special boilers does not exceed 600 °C. However, the traditional rake soot blower has the following disadvantages: 1. When the rake soot blower is installed, there are clear requirements for the distance between each row of rake tubes and the blowing surface. If it is too close, it will easily blow out the catalyst module, and if it is too far away, the effect will be affected. , the nozzle needs to be vertically downward; 2. The s...

Images