Device for detecting and preventing excessive entrainment in gases of liquid

Abstract

Abstract 697,328. Separating liquid particles from air. HALL & CO., Ltd., M. Aug. 14, 1951 [Sept. 20, 1950], No. 23108/50. Class 123 (iii) [Also in Group XVIII] In an apparatus comprising means for separating liquid which may contain solid particles from suction air, e.g., a frustroconical screen 10 for arresting solid particles and a baffle tube 4 for precipitating drops of liquid and having a chamber 1 for collecting said drops, an automatic signal warns the operator when the separated liquid reaches a predetermined low level in the collector and means is provided for stopping automatically the gas suction when the separated liquid reaches a predetermined high level in said chamber 1. The warning signal comprises electrodes 15 adapted to be bridged by water in a downward extension 3 of the chamber 1, and the suction fan motor is stopped when a float 25 abuts a tappet 38 of a plunger 36 to open a normally closed mercury switch 33 mounted on pivoted lever 32. In operation, air entering at a suction inlet 2 after passing the screen 10 enters the tube 4 through a screened opening 12 and passes out through a duct 17, water being collected in the chamber 3 which has a drain cock 14 and an inspection window 13. In the event of failure of the switch 33 being actuated, continued rise of water level in the tube 4 forces the float 25 against a seating 22 and prevents access of water into the outlet duct 17 leading to the fan inlet. The switch 33 and arm 32 are housed in a sealed cap 26, and a tube 37 guiding the plunger 36 has pressure equalizing ports 40, 41, the former being closed by a sleeve 42 when the plunger is engaged by the float 25.

Inventors

• 👤 Amos Frederick William Moon

Bibliographic Details