Automatic vacuum sewerage solids cleaning systems and methods

摘要

This application discloses novel vacuum break devices useful in automatic vacuum flushing systems. The vacuum break devices are capable of rapidly breaking the vacuum in a storage tank of a sewer line, thus enabling efficient flushing of sediments and cleaning of the sewer system. The invention also provides automatic vacuum flushing systems comprising these novel rapid vacuum break devices and methods thereof for sewer or storage tank sediment cleaning in urban drainage systems.

主权项

1. A vacuum break device for automatic vacuum flushing systems, comprising:
a mechanical part fixed on the top of a flush water chamber enclosing an air release valve, and a floatable part located at the upstream or side of the flush water chamber and connected to the mechanical part through pivot of a lever system, wherein the floatable part, through the lever system, causes the mechanical part to suddenly open the air release valve and break the vacuum in the headspace of the flush water chamber, when water level in the sewer or storage tank falls to a predetermined level; and wherein the vacuum in the headspace of the flush water chamber is self-generated during natural draining of water outside the flush water chamber with no external power or water supply required.