After the flat cover of the flat cover reactor is processed, it is found that the flat cover is not strong enough. What should I do?
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Our company has just made a 500L flat cover reactor. After the completion, the pressure was tested, but the designer recalculated and found that the thickness of the flat cover was not enough, with a difference of 10mm. Now we all have a headache, and the customer is urging us to deliver the goods all day long. Now, do you have any way to remedy it? (The design pressure of this reactor is as high as 7.4Mpa, the design temperature is 200 degrees, and the material is a highly hazardous medium)
The error in strength calculation is a serious design liability issue. If there is an accident, no one will run away. You can't leave it to chance. My suggestion is to rework it immediately.
I wonder if I can add profiled steel to strengthen it?
A pressure reactor of more than 70 kilograms is designed with a flat cover? It's also ten millimeters thinner. Just to be safe, replace it quickly. This is no joke.
It is highly recommended to replace the flat cover! If there is a design problem, the consequences will be very serious! ! However, if it must be used, it is recommended to overlay the poor thickness and re-finish it, but to be honest, this is more troublesome, involving flaw detection, heat treatment and re-testing of pressure, etc., and it is best not to leave any foundation!
There is a problem with the strength calculation. This is not a trivial matter. What are you busy with reviewing? Surfacing composite reinforcement is not a good way to solve the problem, and it will have future consequences. If the material is not very expensive and difficult to buy, it is better to replace it.
It is best to replace it. The pressure is high and the medium is highly hazardous, which is very dangerous. Unless the design unit makes changes, the boiler supervision office will not and will not issue a supervisory inspection report.
Analytical design may be sought because the allowable stresses of analytical design are high but the computational cost increases. Recommended to reorder.
Now the company has decided to make a new cauldron cover... 20mnmo four-stage parts... it's so expensive
See if you can change the structure of the flat cover, such as bolting to welding, etc., to reduce the calculated thickness.