Regarding the problem that the saddle support reinforcement ring is located in the saddle plane
Thread Content
This post was last edited by FMSD on 2018-5-9 12:38. Currently, No. 16 channel steel is selected as the reinforcing ring. The width of the saddle pad is 710. In order to reduce local stress, the reinforcing ring needs to be located in the saddle plane (the distance cannot be greater than 338, take 330)； But here comes the problem: Scheme on the left: 1. The backing plate needs to be widened to the outside of the reinforcement ring. This is easy to solve. ； 2. The distance between the reinforcing ring and the saddle is too close, and the reinforcing ring is inconvenient to weld. How to solve the problem? Scheme on the right: I can't find a calculation method. The stress on the backing plate is quite complicated. ； To sum up, it seems that it is more reliable to follow the picture on the left. ； What suggestions do you guys have?
hey-hey! What a coincidence. I was looking at the saddle just now. I wonder what the diameter of the poster's equipment is? Logically speaking, as long as the setting position is smaller than the average diameter of the cylinder, you said the distance is not greater than 338, is the diameter 660mm? Shouldn't it? There is also the "external reinforcing ring" in the standard, which I don't quite understand. Could it be that except for the saddle corner position, other parts are strengthened?
I have already said that the reinforcing ring is in the plane of the saddle, and the diameter you calculated is obviously wrong, haha； tell you: Diameter 3200, wall thickness 8, support reaction force 220 kN, 400 degrees Celsius, Q345 material. Later I changed my mind and did not need a reinforcing ring. I could solve the problem by thickening the cylinder to 12 mm and wrapping angle 120 degrees. ； Or the wrapping angle can be 150 degrees, and the cylinder thickness can be 10 degrees.
With such a large diameter, wouldn't it be nice if the reinforcement ring was placed inside?
There is flue gas inside, and the dust concentration in the flue gas is high. If the reinforcing ring is installed inside, it will cause serious wear and tear, so it is not suitable to install reinforcing components inside.
Partially thickening the cylinder or enlarging the saddle angle
Did you read what I said before? The main reason is that after the reinforcing ring is installed, the distance between the reinforcing ring and the saddle is too close, and the welding space is insufficient. ；
Saw it. I also have your questions now. We are now planning to wrap the corners of the saddle pad and ribs, but not weld the web. Probably the lower 150-degree part is reinforced by the saddle, and the rest is welded with grooved steel rims.