US 11,939,760 B2 · Vacuum sewage system with monitoring system and variable speed pump and methods of use

Abstract

A vacuum sewage system includes a collection station, a variable speed vacuum pump, a variable speed drive, a control system, a sewage pump, a collection tank, a valve pit, a first conduit extending from the collection station to the valve pit, a second conduit extending from the valve pit and terminating in a closed end, a sensor located adjacent the closed end of the second conduit, and a valve located in the valve pit for selectively permitting sewage and waste water to flow from the valve pit toward the collection station upon activation of the valve. The control system, variable speed drive and sensor may be utilized to adjust the vacuum level and vacuum level range at the collection station so as to reduce the speed and operation time of the variable speed vacuum pump while maintaining the desired vacuum level in the vacuum sewage system.

Claims17

Dependent claims

A method of operating a vacuum sewage system including the steps of:

specifying a vacuum level operating range at a collection station, the vacuum level operating range at the collection station having a lower end;
specifying a vacuum level at a location in the system;
detecting the vacuum level at the collection station;
utilizing a sensor to detect the vacuum level at the location in the system;
comparing the vacuum level detected at the location in the system with the specified vacuum level for the location;
and
if the vacuum level detected at the location in the system is equal to or greater than the specified vacuum level for the location and the vacuum level detected at the collection station is within the specified vacuum level operating range for the collection station, reducing the vacuum level operating range for the collection station.

4 more elements

A method of operating a vacuum sewage system including the steps of:

specifying a vacuum level operating range at a collection station;
specifying a vacuum level at a location in the system;
detecting the vacuum level at the collection station;
utilizing a sensor to detect the vacuum level at the location in the system;
comparing the vacuum level detected at the location in the system with the previously specified vacuum level for the location;
and
if the vacuum level detected at the location in the system is equal to or greater than the specified vacuum level for the location and the vacuum level detected at the collection station is within the specified vacuum level operating range for the collection station, specifying a first new vacuum level operating range for the collection station equal in magnitude to the specified vacuum level operating range for the collection station and having a lower upper limit.

4 more elements

Dependencies are inferred from the claim text.

Vacuum sewage system with monitoring system and variable speed pump and methods of use

Life of this patent

Vacuum sewage system with monitoring system and variable speed pump and methods of use

Life of this patent

Abstract

Claims17