Low Speed CFB (Low speed CFB boiler) Boiler

The advantage of low speed CFB boiler
1.Increase the separation of spiral diffuser inlet and offset center tube
Increase the spiral separator diffuser can extend the entrance of accelerating section, to rnsure of large particles can be pre-separated particles to improve the separation efficiency separator to make up for the burning of coal particles in the chamber enough to improve combustion efficiency. Offset center tube can tend to flow cross-sectional area smaller, the location of the gas flow after the first speed reducer, so that more of the solid particles left behind to the wall to be separated to improve separation efficiency.
2.The layout improvement of heating surface.
Optimize the layout of the horizontal pipe laying, reduce the wear of pipe laying, and extend running time.
Enhance the position of pipe laying, reduce the wear of pipe laying, additional maintenance space, easy maintenance.
Sewer put in operation layer, easy layout of sewage pipes.
3.Improvement of burning equipment
By improving the shape of the head of the hood and the circumferential direction of arrangement of the holes optimal design, on the one hand to extend the life of hood, meanwhile it can improve the situation of the flow hood area, avoid cloth Wind board dead, improve the flow quality of layer.Moreover, there are two advantages by using this type of hood.  One is to avoid the ash flowing back to wind box. And second, to avoid the use of Bell shi hood O'clock slag particles into the Dao hat head and the area between the inner tube can not clean up the problem. Thereby enhancing the overall performance of combustion equipment.
4.Optimization of the slag drop tube
For the boiler, the slag drop tube which in the furnace-side is easy to heat and deformation, leading to the boiler can not operate normally disadvantages. If we improve the slag drop tube into nested structure, it can effectively prevent the deformation of pipe ends of the residue, even if problems are only partial replacement, easy maintenance. Java tube wear while off the air box office with flexible connection, to resolve residue management are inconsistent with the bellows expansion bellows tear caused by air leakage problems. Residue management structure tends to perfect.
5.Auxiliary feed back unit
As the boiler in operation, if the back feeding entrance blocked and the original structure can not be handled in time, the trouble of blocking will affect the normal operation of circulatory system. Now increase Dredging equipment at the back feeding entrance. The advantage is that we can observe whether the entrance is block or not at any time, and can plug in time eliminate failure to ensure normal operation of the circulatory system.
6.Optimal design of water system
By new design, water-cooled beam system and boiler water, cooling water system into a single pressure system to solve the water-cooled beam burn, leakage and other troubles.
7.Water-cooled furnace top
Adding water-cooled furnace top and decreasing leakage, it will avoid collapse of the furnace top and increasing heating area at the same time, which could decrease its temperature with rising heating efficiency about 1%-2%.