Patent ID: 7094321

Claim:
A device for controlling the gas pressure in a coke oven chamber, comprising an immersion cup ( 4 ), to which water is supplied, and with an immersion pipe ( 6 ) which is connected to the gas space of the coke oven chamber ( 1 ) and terminates in the immersion cup, the immersion cup ( 4 ) having an overflow ( 8 ) and a closeable outflow ( 9 ), and the immersion pipe ( 6 ) being designed with an end portion ( 10 ), the free gas outlet cross section of which is dependent on the liquid level ( 11 ) in the immersion cup ( 4 ), wherein, to control the liquid level ( 11 ), an outflow pipe ( 13 ) for water is provided, the inflow-side end of which projects into the immersion pipe ( 6 ) and contains casing-side inflow orifices ( 14 ) for the inflow of water, in that within the outflow pipe ( 13 ) is arranged a slide ( 15 ) which is open on both end faces and which closes the inflow orifices ( 14 ) of the outflow pipe ( 13 ) in the longitudinal direction according to the position of said slide and forms a vertically adjustable overflow for the water flowing into the outflow pipe ( 13 ), in that the inflow-side end of the outflow pipe ( 13 ) is surrounded by a siphon pipe ( 16 ) which closes the outflow pipe ( 13 ) on the top side and which forms an annular duct for the inflow of water, said annular duct issuing into the immersion cup ( 4 ) below the immersion pipe ( 6 ), and in that the respective position of the top edge of the slide ( 15 ) defines the height of the water level within the immersion cup ( 4 ).