Drain for condensate from flue gas

Patent · Tue Sep 16 04:00:00 EDT 1986

OSTI ID:5373500

Ahn, H

This patent describes the maintenance of a desired sub-atmospheric pressure in a flue gas at a selected point in a system burning hydrocarbon fuel from which water vapor condenses, a trap and drain comprising a standpipe in communication with and below a flue, means to establish an overflow level of the standpipe and to drain condensate therefrom, dip tube connected to the overflow outlet means and extending downward within the standpipe to a trap level above the base of the standpipe, and downward-leading means, entering the standpipe at a level between the trap level and the overflow level, to conduct to the standpipe condensate from such selected point in the system at which such sub-atmospheric pressure is to be maintained, whereby after the standpipe is filled with water to such overflow level, such negative pressure is maintained by the rise of water from the standpipe into the downward-leading means.

• Assignee: Intertherm, Inc., St. Louis, MO
• Patent Number(s): US 4611622
• OSTI ID: 5373500
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020800 -- Petroleum-- Waste Management
025000* -- Petroleum-- Combustion
ATMOSPHERIC PRESSURE
CHEMICAL REACTIONS
COMBUSTION
CONDENSATES
CONTROL
DRAINAGE
FLUE GAS
FLUIDS
GASEOUS WASTES
GASES
HYDROCARBONS
ORGANIC COMPOUNDS
OXIDATION
PIPES
PRESSURE CONTROL
THERMOCHEMICAL PROCESSES
VAPOR CONDENSATION
VAPORS
WASTES
WATER VAPOR