Fluid handling – Diverse fluid containing pressure systems – Main line flow displaces additive from shunt reservoir
Patent
1995-08-21
1997-10-07
Michalsky, Gerald A.
Fluid handling
Diverse fluid containing pressure systems
Main line flow displaces additive from shunt reservoir
1372361, F04F 300
Patent
active
056737238
ABSTRACT:
The present invention concerns a vacuum sewerage system for collecting wastewater from a number of buildings comprising a vacuum sewer which is on one end connectable to a vacuum source and into which wastewater from the buildings can be aspirated via interphase valves. The vacuum sewer has a height profile comprising a sequence of low and high points, whereby wastewater can accumulate at the low points while the system is at rest. If air flows, the wastewater accumulations are pushed from the low points over the subsequent high points. The invention proposes to provide first and a second sections of the vacuum sewer with different height profiles. The height profiles are such that the maximum volume of the wastewater accumulations at the low points of height profile I is by preferably at least 3 times smaller than the maximum volume of the wastewater accumulations in height profile II.
REFERENCES:
patent: 4155851 (1979-05-01), Michael
patent: 4179371 (1979-12-01), Foreman et al.
patent: 5083885 (1992-01-01), Ushitdra et al.
ATV-"Gesondere Entwasserungsverfahren . . . A116", Sep. 1992.
Environmental Protective Agency Manual No. 625/1-91/024-Oct. 1991 (pp. 102-109).
Michalsky Gerald A.
Roediger Anlagenbau-GmbH
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