Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Liquid supplied at valve interface
Patent
1974-01-23
1976-03-30
Weakley, Harold W.
Fluid handling
With cleaner, lubrication added to fluid or liquid sealing...
Liquid supplied at valve interface
137240, 251305, F16K 336
Patent
active
039467520
ABSTRACT:
To prevent explosions in oil tankers, flue gases from a furnace or boiler are used to fill the oil tanks or gas tanks to reduce the oxygen content below the burning point and below where explosions would occur and it has been the practice to use the flue gases from the boilers for this purpose. However, the flue gases must be cleaned and scrubbed to remove soot and particularly sulphur dioxide to prevent corrosion in the oil receiving tanks of the tanker. However, in prior practice there has been no satisfactory way to prevent flue gases from getting into the scrubber and pump for delivering the scrubbed flue gases to the tanker tanks and the present invention includes a valve structure for preventing the passage of flue gases beyond the valve. The conventional valve is not entirely fluid tight and therefor some flue gases have entered into the scrubber and the pump and the piping to the tanks resulting in corrosion of the scrubber, pump, pipes and tanks which resulted in great loss. The present invention includes a butterfly valve having a first disc with its periphery substantially fluid tight in the valve body and second disc spaced from the first disc in the direction of the boiler and having its periphery appreciably smaller than the adjacent portions of the valve body so that flue gases and air can pass through the space between the periphery of the auxillary disc and the valve body. When the valve is closed and it is not desired to have flue gases get to the tanks, air under pressure is introduced through the valve body into the space between the main and auxillary valve discs and such air is furnished by the draft fan for the boiler and forces any flue gases back toward the boiler rather than permit such flue gasses to pass to the scrubber, the pump, the water sealing tank, the pipes and the tanks of the tanker thereby preventing corrosion without requiring expensive noncorroding materials.
REFERENCES:
patent: 965999 (1910-08-01), Faget
patent: 3045692 (1962-07-01), Reynolds
patent: 3547140 (1970-12-01), Hastings
Dowell Jr. A. Yates
Weakley Harold W.
LandOfFree
Flue gas valve for the refining process in the inert gas system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flue gas valve for the refining process in the inert gas system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flue gas valve for the refining process in the inert gas system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-514928