JP2518796B2 - Sewage measurement structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewage amount measuring structure for measuring the amount of sewage discharged from each sewage discharger such as a household.

[0002]

2. Description of the Related Art When adopting a sewage treatment system that collects sewage discharged from sewage dischargers into a sewage pipe and treats it, it is necessary to charge each sewage discharger a sewerage usage fee according to the amount of discharge. There is.

The sewerage usage fee is generally calculated based on the amount of water supply used, and the usage fee is levied on the assumption that only the used water is discharged to the sewer pipe.

[0004]

By the way, the water supply is also used for car washing and water spraying in the garden in each household, and the amount of water supply used is not discharged to the sewer pipe. On the other hand, rainwater, groundwater, etc. may enter the sewer pipe by infiltrating from the connection part or the damaged part of the individual sewer discharge pipe,
Some households use well water in the kitchen, and in these cases, it is necessary to include rainwater and groundwater that have flowed into the sewer pipe, and well water into the sewer usage charge to impose a usage fee.

Therefore, an object of the present invention is to make it possible to accurately measure the amount of sewer used by each sewage discharger.

[0006]

In order to achieve this object, the sewage amount measuring structure of the present invention comprises a downward sewage discharge pipe connected to a sewage discharge place of each household or the like.
Form a water reservoir and attach an electromagnetic flow meter to this sewage reservoir.
It is attached.

[0007]

[Operation] The flow rate in the individual drainage pipe is measured by the flow meter. An electromagnetic flow meter is used as the flow meter.
However, the electromagnetic flowmeter uses the electromotive force generated by electromagnetic induction as the flow velocity.
The signal is detected as a signal to accurately measure the sewage flow rate, and
It is very easy to set up. And then, to the individual sewer drain
If you form a sewage reservoir that bends to the side,
Since the sewage is full, an electromagnetic flow meter is installed in this sewage reservoir.
Accurately measure the amount of sewage passing through by installing
be able to.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a view showing a sewage amount measuring structure according to the present invention.

An inflow pipe 5 is connected to the tap water use point 3 of each household 1, and the inflow pipe 5 is an individual sewage for each household 1 which is piped so as to descend downward toward the front (right side in the figure). It is connected to the discharge pipe 7. The individual sewage discharge pipe 7 is connected to the sewage mass 9, and the vegetable waste, rice, etc. contained in the discharged sewage are separated in the sewage mass 9. A connection pipe 11 extends from the dirty water mass 9 so as to descend and incline toward the front (right side in the figure), and the connection pipe 11 is connected to the sewer pipe 13. Therefore, the sewage flowing into the sewage mass 9 will flow into the sewage pipe 13 through the connection pipe 11.

The individual sewage discharge pipe 7 is formed with a sewage reservoir portion 17 that bends downward just before the connection portion 15 with the wastewater mass 9. The bottom portion 19 of the sewage reservoir portion 17 has a full pipe type electromagnetic flow meter 21. Is attached. Here, as the electromagnetic flow meter, a full pipe type with high measurement accuracy is used, but it is also possible to adopt a non full pipe type.

FIG. 2 is a diagram showing details of the electromagnetic flow meter 21 portion.

A magnet body 23 is arranged outside the bottom portion 19 of the sewage sump portion 17, and a magnetic field is applied at right angles to the axial direction of the sewage sump portion 17. An electrode 27 is attached to the outer circumference of the sewage reservoir portion 17 in a direction perpendicular to the magnetic field via an insulator 25, and the flow velocity when the sewage flows is taken out from this electrode 27 as a potential difference e.

FIG. 3 is a view showing the installation position of the display device for displaying the measurement result of the electromagnetic flow meter 21.

The display device 31 connected to the electromagnetic flowmeter 21 by the cable 29 is installed in the meter reading box 35 in which the water supply meter 33 is arranged, but the display device 31 may be installed in any place. It is also possible to directly send the measurement result by the electromagnetic flow meter 21 to the terminal of the meter-reader.

Reference numeral 37 in the figure denotes a water supply pipe.

[0017]

As described above, by using the measurement structure of the present invention, it is possible to accurately measure the amount of sewage actually flowing into the sewer pipe from each sewage discharge place, and to use the sewerage fairly for each sewage discharger. Fees can be charged. Also with a flow meter
Since it uses an electromagnetic flow meter, the sewage flow rate can be accurately measured.
It is measurable and extremely easy to install. That
And in what place should the display device for the amount used be installed?
It is also possible to perform measurement results without installing a special display device.
The result can also be sent to the meter reader. In addition, individual sewage
The drain pipe has a sewage reservoir that bends downward.
In, it becomes that the sewage is filled to the sewage reservoir minutes, proof
Not only can you get the effect of odor and insect repellent,
With an electromagnetic flow meter attached to the water reservoir,
It is possible to accurately measure the amount of water.

[Brief description of drawings]

FIG. 1 is a diagram showing a sewage amount measurement structure according to the present invention.

FIG. 2 is a diagram showing details of an electromagnetic flow meter portion.

FIG. 3 is a diagram showing an installation position of a display device that displays a measurement result of an electromagnetic flow meter.

[Explanation of symbols]

 7 Individual sewage discharge pipe 17 Sewage reservoir 21 Electromagnetic flow meter

Claims (1)

(57) [Claims] 1. Individual sewage connected to a sewage discharge location
Form a sewage reservoir that bends downward in the discharge pipe, and
An electromagnetic flow meter is attached to the reservoir part below
Water measurement structure.