Dean, thanks for your suggestion.
I wrote the the NBIC and I got the following reply from the Staff Engineering, that I am sharing:
"It is my opinion that your questions may be answered as follows:
Question 1: If we have to weld in the field lifting lugs to a stamped pressure vessel, we...
JT,
Thanks for the posting. Today I just came out of a meeting with a doubt about butt weld connection nozzles. Here it goes more questions for further elaboration:
If we have to weld in the field lifting lugs to a stamped pressure vessel, we will loose the stamp if a pressure test is not done...
If you use Submerged Quench Incineration, a deep submergence of the downcomer eliminates the need of quench sprays that are prone to plug.
I have a few articles about this system, one of which at PTQ magazine and also at their site www.eptq.com under Articles section with the title of Submerged...
It depends on the type of incinerator. For waste gas and liquid thermal incinerators, with and without heat and byproduct recovery, I author a few articles and presented a few papers on the suject. I may have something that fits what you are looking for.
Let me know.
assuming large flow rates and if HHV of your liquid waste is less than 4500 BTU/lb, you can use a downfired incinerator, introducing the waste downstream of the burner.
If the HHV is larger than 4500 BTU/Lb and the waste does not contain salts, it can be used as burner fuel, introduced...
gregsippel,
IMHO you are operating an unsafe system!!
The waste gases should be diverted from the incinerator feed to another system designed to accept the stream on a temporally basis. The application of an igniter burner does NOT solve your particular problem.
For further information on safety...
Byrdo,
I am going to make it simple, just replying to your question.
Yes, you are right with your description as long as the downstream backpressure developed by your set flow is less than the critical pressure.
Under choked flow conditions the orifice area is directly proportional to the flow...