Automatic vacuum sewerage solids cleaning systems and methods
First Claim
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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, anda 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.
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Abstract
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.
6 Citations
20 Claims
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1. A vacuum break device for automatic vacuum flushing systems, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A vacuum break device for automatic vacuum flushing systems, comprising:
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a mechanical part fixed on the top of the flush water chamber encompassing the air release valve, and a floatable part connected to the mechanical part through a lever system, a shooting part fixed on a lever arm of said lever system and capable of moving up and down along a positioning rod, the shooting part connected to the top of the flush water chamber through a spring wrapping around the positioning rod, both the spring and positioning rod fixed on the top of the flush water chamber, optionally through a positioning plate, and a handle fixed on the shooting part, the handle connected to the air release valve through a string or chain, wherein the shooting part is capable of opening and closing the air release valve through the string or chain connecting the handle and the valve; and 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. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification