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Gas burner tips clogging?

Gas burner tips clogging?

Gas burner tips clogging?

Am new maintanance engineer in refining industry
being in charge of refubishing of fuel gas burners of the refinery, I need help to find procedures to uncork the gas lines, It may new installation...
is it necessary to have gas strainers on feed pipes..
any information would be helpful


RE: Gas burner tips clogging?


You first need to check why the gas tips are clogging.
This means breaking one (or more) down for inspection.
The typical causes are

A - pipe scale from corroded piping
  A1 - clean the pipe internally by either steaming or pickling
  A2 - install strainers ahead of the gas nozzles no bigger that 2/3 of the smallest jet size

B - oil or tar from the gas (condensate)
  B1 - change the gas
  B2 - put knock out pots in the line(s)
  B3 - heat trace the piping

C - high sulphur content in the gas, when the gas expands as it leaves the jet, it drops out some solid sulphur which plugs the hole
  C1 - change the composition
  C2 - clean the nozzle frequently

D - corrosion of the jet by flame contact, if there is inufficient chrome in the nozzle it will scale from flame contact
  D1 - change the material

I'm sure others may have some thoughts but this should get your ideas flowing.
In any event, you should probably have a program of regularly inspecting the burners for progressive damage, both to the jets and the refractory blocks.


RE: Gas burner tips clogging?

If I have to install stainers on fuel gas pipes, can you recommend a specific type of strainers

RE: Gas burner tips clogging?

You should check with your local piping and fittings supplier to see which manufacturers he carries.
Generally, a "Y" type strainer with a drain connection and a removable basket would be sufficient.  If the service is critical and cannot be interrupted, you may need a dual basket with change-over/diverter valve.

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