JPH08277555A - Vacuum type sewage discharger - Google Patents

Abstract

PURPOSE: To continue the usage of a sanitary equipment even when air leakage, etc., are generated in a vacuum piping in the ceiling by utilizing an underfloor vacuum piping and discharging sanitary sewage from the sanitary equipment when the negative pressure of the vacuum piping in the ceiling is insufficient. CONSTITUTION: A first vacuum piping 11 is disposed into a space 5 in the ceiling of a first floor 1, and a second vacuum piping 12 is arranged into a space 6 in the ceiling of a second floor 2. When negative pressure detected by a negative-pressure sensor 25 is higher than a fixed value and negative pressure in the second vacuum piping 12 is sufficiently high, a first drain valve 23 is brought to a closed state at all times. When a flush switch 17 is operated when negative pressure in the second vacuum piping 12 detected by the negative- pressure sensor 25 is lower than the fixed value and negative pressure in the vacuum piping 12 is insufficient, a second drain valve 24 is left as it is closed, and the first drain valve 23 is opened. An electric flush valve 18 is opened and operated normally. Accordingly, sanitary sewage in a toilet stool 14 is sucked and discharged into the first vacuum piping 11 through pipings 20, 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum type sewage discharge device for discharging sewage using vacuum (negative pressure), and more particularly to a device for discharging sewage from sanitary equipment in a building with two or more stories. Regarding

[0002]

2. Description of the Related Art A vacuum drainage system for evacuating a sewer pipe and collecting sewage by using a pressure difference is becoming popular. This vacuum drainage system does not require gravity draining, so no drainage gradient is required, and there is no need to bury the sewer pipe deeply, which minimizes construction work.
It has many advantages such as being able to deal with areas where excavation work is difficult, such as narrow alleys and winding alleys.

Further, an indoor vacuum drainage system has been developed for draining domestic wastewater and miscellaneous drainage from kitchen, toilet, bathroom, etc. through a vacuum type indoor pipe.

By arranging this indoor piping behind the ceiling, there is no need for piping between the skeleton floor of the building and the indoor floor (flooring), and the vacuum height of the indoor ceiling is large Ejection devices have been developed. In this vacuum type sewage discharge device, sewage from sanitary equipment such as a toilet or sink is sucked by the negative pressure of the vacuum pipe, rises in the sewage pipe, and flows into the vacuum pipe in the ceiling.

[0005]

In the vacuum type sewage discharge device in which the vacuum piping is arranged above the ceiling, in the unlikely event that the negative pressure of the vacuum piping above the ceiling becomes insufficient. , It becomes impossible to discharge sewage from sanitary equipment.

[0006] The present invention provides a vacuum type sewage discharge device capable of discharging the sewage from the sanitary equipment to the vacuum piping below the floor even when such a situation is encountered.

[0007]

A vacuum type waste water discharge device according to claim 1 is a vacuum type waste water discharge device installed in a building having a first floor and a second floor above the first floor. There is a first vacuum pipe installed in the ceiling above the first floor and the second vacuum pipe.
Second vacuum pipe arranged on the ceiling above the floor, sanitary equipment arranged on the second floor, and first wastewater for guiding wastewater from the sanitary equipment to the first vacuum pipe. A first drain valve provided on the pipe and the first wastewater pipe, a second wastewater pipe that guides the wastewater from the sanitary equipment to the second vacuum pipe, and the second wastewater pipe. And a second drain valve.

According to a second aspect of the present invention, in the vacuum type waste water drainage device, only the second drain valve is operated when the negative pressure in the second vacuum pipe is a predetermined value or more. The first drain valve is closed, and when the negative pressure in the second vacuum pipe is weaker than the predetermined value, only the first drain valve is actuated to operate the second drain valve. Is provided with a valve control device that keeps the valve closed.

[0009]

[Operation] Even if the negative pressure in the vacuum piping on the ceiling of a certain floor is insufficient, by opening the first drain valve, dirty water from the sanitary equipment can be discharged to the vacuum piping on the ceiling of the lower floor. .

[0010]

EXAMPLE FIG. 1 is a sectional view of a building equipped with a vacuum type waste water discharge device according to an example. On the first floor (for example, the first floor) 1 and the second floor (the second floor) 2, ceiling panels 3 and 4 are provided with ceiling ceiling spaces 5 and 6, respectively, and wall panels 7 and 8 are used to pipe space 9, 10 are provided. The first vacuum pipe 11 is provided in the space 5 above the ceiling on the first floor 1.
And a second vacuum pipe 12 is provided in the space 6 behind the ceiling on the second floor 2.

A Western-style toilet 14 is installed on the building frame floor 13 on the second floor. A low tank 15 is installed at the rear of the Western-style toilet 14, and a water supply pipe 16 is provided in the low tank 15.
It is connected to the. This low tank 15 is an electric flash valve 1 that is opened by a flash switch 17.
8 is provided. The operation signal of the flash switch 17 is input to the controller 19 provided on the wall panel 8.

A common sewage pipe 20 is provided at the drain of the Western-style toilet 14.
One end of is connected. The other end of the common waste water pipe 20 is drawn into the pipe space 10. At the other end of the common waste water pipe 20, a first waste water pipe 21 and a second waste water pipe 21 are provided.
Is connected to the dirty water pipe 22.

The first waste water pipe 21 is the first vacuum pipe 11
And a first drainage valve 23 is provided in the middle thereof. The second waste water pipe 22 is connected to the second vacuum pipe 12, and a second drain valve 24 and a negative pressure sensor 25 are provided in the middle thereof. These drain valves 23 and 24 are electrically driven valves such as solenoid valves, and are operated by a signal from the controller 19. The detection signal of the negative pressure sensor 25 is input to the controller 19.

As shown, the negative pressure sensor 25 has a second
It is installed closer to the second vacuum pipe 12 than the drain valve 24. Further, the upper portion of the second waste water pipe 22 is raised to a higher position than the second vacuum pipe 12, and the second drain valve 24 and the negative pressure sensor 25 are higher than the second vacuum pipe 12. It is arranged in a place.

In the vacuum type sewage discharge device constructed as described above, when the negative pressure detected by the negative pressure sensor 25 is higher than a predetermined value and the negative pressure in the second vacuum pipe 12 is sufficiently high. The first drain valve 23 is always closed.

When the flash switch 17 is operated,
The electric flush valve 18 is opened, and the wash water is supplied from the low tank 15 to the Western style toilet 14. Further, almost simultaneously with this, the second drain valve 24 is opened, and the dirty water in the Western-style toilet 1 is sucked and discharged into the second vacuum pipe 12 through the pipes 20 and 22. After a lapse of a predetermined time, the electric flush valve 18 and the drain valve 24 are opened.

When the negative pressure in the second vacuum pipe 12 detected by the negative pressure sensor 25 is weaker than a predetermined value and the negative pressure in the vacuum pipe 12 is insufficient, the flash switch 17 is operated. Then, the second drain valve 24 remains closed and the first drain valve 23 is opened. The electric flash valve 18 is opened normally. As a result, the dirty water in the Western-style toilet 14 is sucked and discharged to the first vacuum pipe 11 through the pipes 20 and 21.

As described above, according to this embodiment, when the negative pressure of the vacuum pipe 12 above the ceiling is weak, the vacuum pipe 1 downstairs is used.
1 can be used to discharge sewage. In this embodiment, the pipes 20 and 21 extending from the Western-style toilet 14 to the first vacuum pipe 11 have a substantially downward slope,
Not only the vacuum pipe 12 but also the negative pressure in the first vacuum pipe 11 is weak, the sewage in the Western-style toilet 14 can be discharged to the first vacuum pipe 11 by gravity flow.

In the above embodiment, the electrically driven drain valve 23,
Although 24 is used, a vacuum drive valve driven by the negative pressure of the vacuum pipe may be used.

Although a Western-style toilet is used as the sanitary device in the above-mentioned embodiment, the present invention can discharge sewage from various sanitary devices such as a urinal, a washbasin, a bathtub and a sink.

[0021]

As described above, according to the vacuum type sewage discharging apparatus of the present invention, when the negative pressure of the vacuum piping in the ceiling is insufficient, the sewage from the sanitary equipment can be discharged using the vacuum piping downstairs. Even if the air leaks in the vacuum piping or the vacuum pump malfunctions, the sanitary equipment can be used continuously.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a building equipped with a vacuum type waste water discharge device according to an embodiment.

[Explanation of symbols]

 1 1st floor 1 2nd floor 11 1st vacuum piping 12 2nd vacuum piping 14 Western-style toilet 15 Low tank 18 Electric flush valve 21 1st dirty water piping 22 2nd dirty water piping 23 1st drainage valve 24 Second drain valve 25 Negative pressure sensor

Claims (2)

[Claims] 1. A vacuum type sewage discharger installed in a building having a first floor and a second floor above the first floor, the vacuum sewage draining apparatus being disposed above the ceiling of the first floor. A first vacuum pipe, a second vacuum pipe disposed on the ceiling above the second floor, a sanitary device disposed on the second floor, and wastewater from the sanitary device First leading to the first vacuum pipe
Second sewage pipe and a first drain valve provided on the first sewage pipe, and a second drain pipe for guiding sewage from the sanitary equipment to the second vacuum pipe.
And a second drain valve provided on the second waste water pipe, and a vacuum type waste water discharge device comprising: 2. The method according to claim 1, wherein when the negative pressure in the second vacuum pipe is strong at a predetermined value or more, only the second drain valve is operated and the first drain valve is closed. In addition, when the negative pressure in the second vacuum pipe is weaker than the predetermined value, only the first drain valve is operated and the second drain valve is closed. A vacuum type sewage discharge device characterized by being provided with.