Patent attributes
The vapor exhaust assembly, for anhydrous ammonia, includes a closed filter tower and a closed exhaust tower with vertical tubes. The filter tower is connected to the vapor tower by a vapor upper pipe and a liquid lower pipe. A filter tube is mounted in the filter tower. Ammonia enters the filter tower above an open end of the filter. Ammonia vapor moves from the filter tower through the vapor upper pipe to a vapor chamber in the vapor tower. Liquid moves from the filter tower through the liquid pipe to the vapor tower. Liquid received in the vapor tower is moved upward by a dam. Vapor in the liquid moves upward to the vapor chamber. Liquid moves downward from the dam top to a liquid discharge exit. A vapor discharge valve in the top of the vapor tower is opened to discharge vapor and increase liquid in both towers.
