Vacuum-type sewage collecting apparatus

Details Vacuum-type sewage collecting apparatus Vacuum-type sewage collecting apparatus

1990-08-29

1991-12-24

Cherry, Johnny D.

Conveyors: fluid current

Intake to fluid current conveyor

Upstream of suction source

406191, 1372361, 4321, B65G 5324

Patent

active

050747185

ABSTRACT:
A vacuum-type sewage collecting apparatus is arranged in such a manner that sewage discharged from the houses or facilities is once accumulated in a cesspool, and the sewage accumulated in the cesspool is then collected through a vacuum valve and a vacuum sewage pipe, the interior of which is under a negative pressure. The vacuum valve is operated by negative pressure taken from a vacuum source and supplied to the vacuum valve via a connecting pipe. The negative pressure for operating the vacuum valve is taken from a portion of a vacuum sewage pipe which is elevated at a level higher than that of the vacuum valve and is disposed downstream of the vacuum valve. Alternatively, the negative pressure may be directly taken from an accumulating tank, the inner pressure of which has been evacuated by a vacuum pump, from a pipe which establishes a connection between the accumulating tank and the vacuum pump, or from a tank connected to the pipe connecting the accumulating tank and the vacuum pump. In this way, a high negative pressure can be supplied to the vacuum valve to effectively and completely open the vacuum valve to thereby perform an efficient discharge of the sewage through the same valve.

REFERENCES:
patent: 4171853 (1979-10-01), Cleaver et al.

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