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US 11,939,759 B2Granted
Sewage system
OwnerShuhei Odainventor
Life of this patent
Estimating the term…
Abstract
Sewage flowing into a second water branching device is accurately controlled to separate into the following: sewage with a maximum sewage volume that can be discharged into a public water body W, the sewage sequentially passing through a first regulating tank, a first orifice, a second regulating tank, a second orifice, a third regulating tank and a third orifice to flow into a second discharge pipe; and sewage with an excess sewage volume, the sewage overflowing first to third overflow weirs to flow into an inflow pipe for a regulating reservoir.
Claims16
A sewage system comprising:
- a first water branching device to which are connected a confluence pipe that introduces sewage, an intercepting pipe that drains sewage into a sewage treatment plant and a first discharge pipe, the first water branching device separating sewage coming from the confluence pipe into sewage to be drained into the intercepting pipe and sewage to be drained into the first discharge pipe;
- and
- a second water branching device to which are connected the first discharge pipe, a second discharge pipe that discharges sewage into a public water body and an inflow pipe for a regulating reservoir, the inflow pipe being connected to the regulating reservoir that stores sewage, the second water branching device separating sewage coming from the first discharge pipe into sewage to be drained into the second discharge pipe and sewage to be drained into the inflow pipe for the regulating reservoir, wherein
- the second water branching device includes a channel in which sewage coming from the first discharge pipe is drained into the second discharge pipe, a plurality of overflow weirs erected on at least one of both sides of the channel, a plurality of partitions each provided between each of the plurality of overflow weirs and between the overflow weir arranged downstream and the second discharge pipe, the plurality of partitions each including an orifice formed therein, and a plurality of regulating tanks demarcated by the plurality of overflow weirs and the plurality of partitions, and
- the inflow pipe for a regulating reservoir introducing sewage overflowing the plurality of overflow weirs is connected below the plurality of regulating tanks.
2 more elements
A sewage system comprising:
- a first water branching device to which are connected a rainwater pipe that introduces rainwater, an intercepting pipe that drains rainwater into a sewage treatment plant into which wastewater is drained from a wastewater pipe and a first discharge pipe, the first water branching device separating rainwater coming from the rainwater pipe into rainwater to be drained into the intercepting pipe and rainwater to be drained into the first discharge pipe;
- and
- a second water branching device to which are connected the first discharge pipe, a second discharge pipe that discharges rainwater into a public water body and an inflow pipe for a regulating reservoir, the inflow pipe being connected to the regulating reservoir that stores rainwater, the second water branching device separating rainwater coming from the first discharge pipe into rainwater to be drained into the second discharge pipe and rainwater to be drained into the inflow pipe for the regulating reservoir, wherein
- the first water branching device includes a channel in which rainwater coming from the rainwater pipe is drained into the intercepting pipe, a plurality of overflow weirs erected on at least one of both sides of the channel, a plurality of partitions each provided between each of the plurality of overflow weirs and between the overflow weir arranged downstream and the intercepting pipe, the plurality of partitions each including an orifice formed therein, and a plurality of regulating tanks demarcated by the plurality of overflow weirs and the plurality of partitions, wherein the first discharge pipe introducing rainwater overflowing the plurality of overflow weirs is connected below the plurality of regulating tanks, and
- the second water branching device includes a channel in which rainwater coming from the first discharge pipe is drained into the second discharge pipe, a plurality of overflow weirs erected on at least one of both sides of the channel, a plurality of partitions each provided between each of the plurality of overflow weirs and between the overflow weir arranged downstream and the second discharge pipe, the plurality of partitions each including an orifice formed therein, and a plurality of regulating tanks demarcated by the plurality of overflow weirs and the plurality of partitions, wherein the inflow pipe for the regulating reservoir introducing rainwater overflowing the plurality of overflow weirs is connected below the plurality of regulating tanks.
2 more elements
Dependencies are inferred from the claim text.