JPH07233558A - Vent pipe connection structure of vacuum type sewerage facilities - Google Patents

Abstract

PURPOSE:To eliminate the need for projection of a vent pipe above the ground and remove the limitation of installation site and enhance workability by opening the tip of a vent pipe to be mounted to a house inlet provided with a vacuum valve inside a rising pipe of a catch basin. CONSTITUTION:Wastewater sewage from sewage emission sites, such as a toilet 11, a washroom 12, a sink 13 and a bathtub 14 drops spontaneously and flows into a house inlet from a catch basin 2 by way of a sewage flow-in pipe 7. Then, the sewage is primarily stored in the house inlet and exposed to the open air by way of a vent pipe 31. Since an atmospheric pressure prevails inside the house inlet, the sewage flows in spontaneously from the sewage emission sites. Then, the amount of sewage in the house inlet increased and when the sewage exceeds a definite water level, a detection pipe detects that water level so that a vacuum valve is opened, thereby communicating the inside of a sewage suction pipe with a vacuum sewage pipe 10 so that a water pipe may be vacuumed. Then, the sewage flows in a vacuum sewage main pipe from the vacuum sewage pipe 10. After the suction of the sewage, the vacuum valve is kept open for a definite time. After that, under the control of a vacuum valve controller, the open air is sucked up from a vent pipe 31 temporarily and then the vacuum valve is closed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation pipe connecting structure for a vacuum type sewerage facility.

[0002]

2. Description of the Related Art A vacuum type sewerage facility temporarily stores wastewater discharged from wastewater discharge points such as toilets, washrooms, sinks, and bathtubs at home through a drainage basin in a sewage basin with a vacuum valve. The sewage flowing into the masu is collected at the vacuum pump station via the vacuum sewage pipe and the vacuum sewage main pipe, and sent from here to the sewage treatment plant. The sewage basin with a vacuum valve used at this time is, as described in JP-A-3-247828, temporarily stores the sewage that naturally flows down from the sewage discharge point through the drainage basin in the sewage basin. When the amount of dirty water exceeds a certain amount, the detector pipe detects and the vacuum valve opens based on the instruction of the detector pipe. Then, since it is connected to the vacuum sewage pipe having a vacuum inside, the sewage is automatically sucked from the sewage suction pipe, and flows into the vacuum sewage pipe and the vacuum sewage main pipe. After a certain amount of sewage in the sewage box is sucked in, a certain amount of air introduced from the ventilation pipe is sucked in, and then the vacuum valve automatically closes, so that the sewage collects in the sewage box again. Has become.

In order to allow sewage to naturally flow from the sewage discharge point into the sewage basin with a vacuum valve, it is necessary to maintain the inside of the sewage basin at atmospheric pressure. Therefore, normally
A ventilation pipe is attached to the wall of the dirty water basin, and the tip of the ventilation pipe is projected and opened to the ground.

[0004]

However, if the tip of this ventilation pipe is projected above the ground, it is not preferable in terms of appearance, and the installation location is limited. In addition, a vehicle, a pedestrian, or the like may collide with the protruding portion of the ventilation pipe protruding above the ground and be damaged, or a pedestrian or the like may be tampered with by opening the opening or the like. Therefore, an object of the present invention is to provide a ventilation pipe connection structure for a vacuum sewer facility in which the tip of the ventilation pipe does not project above the ground.

[0005]

The present invention has been made to achieve the above object. In the vacuum sewer facility of the present invention, the wastewater discharged from the wastewater discharge point is temporarily stored in the wastewater box with a vacuum valve through the drainage box, and the wastewater that has flowed into the wastewater box with the vacuum valve is a vacuum wastewater pipe and a vacuum sewer main pipe. It is a vacuum type sewerage system that collects in a vacuum pumping station via this and sends it to a sewage treatment plant. A detection pipe for detecting, a sewage suction pipe for sucking sewage from the sewage basin, and a vacuum valve provided between the sewage suction pipe and a vacuum sewage pipe leading to the vacuum sewer main. A ventilation pipe is attached to a wall of the drainage pipe, a tip of the ventilation pipe is opened into the rising pipe of the drainage basin, and a ventilation lid is attached to an upper portion of the rising pipe of the drainage basin. It is characterized by.

In the structure for connecting the ventilation pipe of the vacuum sewer system of the present invention, the number of the ventilation pipe is one, and the tip of this ventilation pipe may be opened in the rising pipe of the drainage basin, but two drainage basins are provided. The ventilation pipe installed above and attached to the sewage box is branched into two or more branch pipes, and the ends of the branched two or more branch pipes are placed in a rising pipe of two or more drainage boxes. You may make it open each. In this way, even if the drainage basin is flooded, if there is at least one drainage basin that is not flooded, the inside of the sewage basin will be at atmospheric pressure through the branch pipe that opens to this drainage basin, and the sewage basin will be flooded. It is convenient because there is no hindrance to the inflow.

The drainage basin used in the ventilation pipe connection structure of the vacuum sewer system of the present invention may have a structure in which the ventilation pipe can be attached in advance, or a conventional drainage basin can be connected to the ventilation pipe. May be improved. There are various methods for improving the conventional drainage basin, but the drainage basin connecting pipe, that is,
It is a cylindrical body that is open at the top and bottom, and the lower opening is a drainage basin connecting port of a shape that can be connected to the upper opening of a conventional drainage basin, and a ventilation pipe or branch pipe (hereinafter referred to as ventilation pipe) A drainage basin connecting pipe having a trachea connection port provided on a side wall of a tubular body may be manufactured, and the drainage basin connecting pipe may be connected to an upper opening of a conventional drainage basin to form a drainage basin.

Further, if this drainage pipe connecting pipe has a circular cross section and can be rotatably connected to the upper opening of a conventional drainage drainage pipe around the axis of the cylinder, this drainage drainage connection pipe will be drained. This is convenient because after connecting to the box, the ventilation pipe connection port provided on the side wall can be rotated in the direction easy to connect to connect with the ventilation pipe.

There are various methods of manufacturing a drainage basin having a structure in which a ventilation pipe is attached. However, a drainage basin body having a drainage inlet and a drainage outlet on the side surface and a connection port provided above is provided. And a tubular body that is open at the top and bottom, consisting of a rising pipe provided with a ventilation pipe connection port for connecting the ventilation pipe on the side surface,
If the lower opening of this riser pipe is attached to the upper connection port of the drainage basin body so as to be rotatable around the axis of the cylinder, the ventilation pipe connection port can be rotated in a direction that is easy to construct. It is convenient because a ventilation pipe can be connected to the trachea connection port.

[0010]

In the vacuum pipe sewerage facility connecting structure of the present invention, since the wastewater discharged from the wastewater discharge point is temporarily stored in the wastewater tank with the vacuum valve through the drainage tank, there is always a drainage tank. The tip of the ventilation pipe of the waste water container with a vacuum valve is opened in the rising pipe of this drainage container. In this way, the tip of the ventilation pipe is opened not in the ground but in the rising pipe of the drainage basin, and since the ventilation lid is attached to the upper part of the rising pipe of the drainage basin, it is not limited to the installation place, Atmosphere can be introduced into a sewage box with a vacuum valve.

Further, two or more drainage basins are provided, and the ventilation pipe attached to the wall of the wastewater basin is branched into two or more branch pipes, and the two or more branched pipes have two tips. Even if the drainage basins are flooded and the tip of the branch pipe is blocked, if there is at least one drainage basin that is not flooded, this drainage basin There is no obstacle to the inflow of sewage, because the inside of the sewage basin is at atmospheric pressure through the branch pipe that opens at.

[0012] Further, it is a cylindrical body having an opening at the top and bottom, and a lower opening is a drainage basin connecting port having a shape that can be connected to an upper opening of a conventional drainage basin, and is a ventilation pipe or a branch pipe (hereinafter referred to as a ventilation pipe). ) Is a drainage pipe connection pipe provided with a ventilation pipe connection port on the side wall of the cylindrical body, the lower opening of this drainage pipe connection pipe is connected to the upper opening of the conventional drainage pipe, By connecting the ventilation pipe to the ventilation pipe connection port of the pipe, the conventional drainage basin can be used for the ventilation pipe connection structure of this vacuum type sewerage facility. If the drainage box connection pipe used at this time has a circular cross-section and can be connected to the upper opening of the conventional drainage box so as to be rotatable around the axis of the cylinder, the drainage box connected to the main body of the drainage box Since the connection port can be rotated around the axis of the cylinder, the ventilation pipe connection port attached to the side surface can be oriented in an appropriate direction. Therefore, no matter which direction the ventilation pipe is located in, the drain pipe connecting pipe can be rotated to easily connect the ventilation pipe connecting port to the ventilation pipe.

[0013]

EXAMPLES Next, examples of the ventilation pipe connecting structure of the vacuum sewer facility of the present invention will be described. 1 to 3 show one embodiment of the ventilation pipe connection structure of the vacuum sewer facility of the present invention,
1 is an explanatory view showing the entire vacuum sewer facility, and FIG. 2 is FIG.
Is a cross-sectional view of a waste water basin with a vacuum valve used in the vacuum type sewerage facility, and FIG. 3 is a cross-sectional view showing the drainage basin used in the vacuum type sewerage facility of FIG.

4 to 6 show another embodiment of the present invention. FIG. 4 is an explanatory view of a drainage basin, FIG. 5 is a front view of a drainage basin connecting pipe, and FIG. 6 is VI-VI of FIG. It is sectional drawing cut | disconnected by the line. FIG. 7 shows another embodiment of the present invention and is a sectional view of a drainage pipe connecting pipe. 8 to 9 show still another embodiment of the present invention. FIG. 8 is a perspective view of the drainage basin and FIG. 9 is a sectional view of the drainage basin.

1-3, 11 to 14 are sewage discharge points, and the sewage discharge points 11 to 14 have various facilities. For example, there are toilets, washrooms, sink tubs, and the like. Reference numeral 2 denotes a drainage basin, into which the sewage discharged from the sewage discharge points 11 to 14 flows from the drainage inlet 21, and the sewage flows from the drainage outlet 22 to the drainage basin 3 with a vacuum valve. Is. Two drainage boxes 2 are provided. A breathable lid 23 is attached to the upper part of the rising pipe of the drainage basin 2.

Reference numeral 3 denotes a sewage basin with a vacuum valve. The structure of the sewage basin 3 with a vacuum valve is partitioned by a partition plate 31 into upper and lower parts, and an upper part serves as a vacuum valve chamber 5 in which a vacuum valve 4 is installed, and a lower part. Is a sewage box 6 for temporarily collecting sewage. In the sewage box section 6, a toilet 11, a toilet 12, a home,
The sewage discharged from sewage discharge points such as the sink 13 and the bathtub 14 naturally flows down from the sewage inflow pipe 7 through the drainage basin 2 and flows in.

Reference numeral 8 is a detection pipe, and this detection pipe 8 hangs down in the wastewater container 6, and when the wastewater is collected, this detection pipe 8
The atmospheric pressure inside rises, the height of the sewage is detected by the change in the atmospheric pressure, and when the water level reaches a certain level or higher, the vacuum valve 4 opens. Next, after sucking a certain amount of dirty water, the ventilation pipe 31
The vacuum valve 4 is adapted to be closed after more air is introduced to suck a certain amount of air. The above-described series of operations is controlled by the vacuum valve controller 41 above the vacuum valve 4.

Reference numeral 9 denotes a sewage suction pipe, and this sewage suction pipe 9
One end 95 hangs down to near the bottom of the sewage box,
The other end is connected to the vacuum valve 4.

The end of the vacuum valve 4 to which the sewage suction pipe 9 is connected is a vacuum sewage pipe 10. Therefore, when the vacuum valve 4 is opened, the inside of the sewage suction pipe 9 is connected to the vacuum sewage pipe 10 and the inside of the sewage suction pipe is evacuated, so that the sewage basin 6 sucks sewage. And this vacuum sewage pipe 1
The tip of 0 is connected to the vacuum main sewer. The sewage is collected from the sewage suction pipe 9 through the vacuum sewage main pipe, collected in a vacuum pump station provided in the downstream, and sent from here to the sewage treatment plant.

Reference numeral 32 denotes a breather pipe, which is connected to a vacuum valve controller 41 above the vacuum valve 4 and has its tip open to the atmosphere, while the vacuum valve controller 41 has a vacuum wastewater pipe 10 and A vacuum is supplied in communication. The vacuum valve controller 41 controls the opening / closing operation of the vacuum valve 4 using the principle of differential pressure between the atmosphere and vacuum. Reference numeral 31 is a ventilation pipe attached to the side wall of the dirty water container portion 6, and this ventilation pipe 31 is branched into two branch pipes 33 and 33 on the way, and the ends of the two branch pipes 33 and 33 are two. Each of the drainage basins 2 and 2 is opened in the rising pipe, and the breathable lid 23 communicates with the wastewater basin 6 to the atmosphere.

Next, the operation of the ventilation pipe connecting structure of the vacuum sewer facility of the present invention will be described. Normally, the vacuum valve 4 is closed. Household toilet 11, washroom 12, sink 13,
The sewage discharged from the sewage discharge point such as the bathtub 14 naturally flows down, flows from the drainage basin 2 into the sewage basin 6 through the sewage inflow pipe 7, and is temporarily stored in the sewage basin 6. At this time, since the dirty water container 6 is communicated with the atmosphere through the ventilation pipe 31, the inside of the dirty water container 6 is at atmospheric pressure. Therefore, the sewage naturally flows from the sewage discharge point.

When the amount of sewage in the sewage box 6 increases and reaches a certain level or more, the detection pipe 8 detects it and the vacuum valve 4 opens. Then, the sewage suction pipe 9 is connected to the vacuum vacuum sewage pipe 10, so that the sewage suction pipe 9 is evacuated and the sewage in the sewage box 6 is sucked, so that the sewage is automatically evacuated from the vacuum sewage pipe 10 to the vacuum sewage pipe. It flows to the main pipe. The vacuum valve controller 41 controls the vacuum valve controller 41 so that the vacuum valve remains open for a certain period of time even after the dirty water in the dirty water container 6 is sucked, and after sucking the atmosphere from the ventilation pipe 31 for a while, the vacuum valve 4 Closes.

As described above, in this embodiment, since the ventilation pipe 31 and the branch pipe 33 do not project above the ground, there is no problem in the installation place. Also, the two branch pipes 3 branched from the ventilation pipe 31.
Since the tips of 3 and 33 are respectively opened in the rising pipes of the two drainage basins 2, even if one of them is submerged, the other drainage basin 2 is not submerged and is opened in this drainage basin 2. Through the branch pipe 33 and the ventilation pipe 31 that are running, the drainage basin 6
Atmosphere will be supplied inside.

Next, the embodiment shown in FIGS. 4 to 6 will be described. Since the structure of the drainage basin 2a is different when the embodiment shown in FIGS. 4 to 6 is compared with the embodiment shown in FIGS. 1 to 3, the structure of the drainage basin 2a will be described. This drainage box 2a
A drainage basin connecting pipe 202 is rotatably attached to an upper opening 201 of a conventional drainage basin 20.

The drainage basin connecting pipe 202 is a tubular body whose upper and lower sides are opened, and the lower opening is connected to the upper opening 201 of the drainage basin 20 which is to come next.
Has become. The drainage basin connection port 203 has a circular cross section, and when the drainage basin connection port 203 is connected to the upper opening 201 of the conventional drainage basin 20, the drainage basin connection port 203 can rotate about the axis of the tubular body. ing. Further, a ventilation pipe connection port 25a is provided slightly above the side wall of the cylindrical body. A cap 33 is attached to the tip opening.

Since the drainage basin 2a has such a structure,
Regardless of the direction of the ventilation pipe or the branch pipe attached to the wall of the drainage basin, the drainage pipe connection pipe can be rotated to easily connect the ventilation pipe connection port 25a toward the direction of the ventilation pipe.

Next, the embodiment shown in FIG. 7 will be described. The embodiment shown in FIG. 7 is different in that the tip of the ventilation pipe connection port 25b faces downward. Since the others are the same, the description is omitted.

Next, the embodiment shown in FIGS. 8 to 9 will be described. In the embodiment shown in FIGS. 8 to 9, the structure of the drainage basin 2c is different, so the drainage basin 2c will be described. The drainage basin 2c includes a drainage basin body 26c and a rising pipe 27c. The drainage basin body 26c includes a wastewater inlet 21c and a wastewater outlet 22c. The rising pipe 27c is a tubular body that is open in the vertical direction, and a ventilation pipe connecting pipe 25c to which a ventilation pipe or a branch pipe can be connected is provided on the side surface.

The drain box main body 26c is provided with a connection port that opens upward, and the rising pipe 27c is connected to the connection port so as to be rotatable about the axis of the cylinder. . In this drainage basin 2c, the sewage inlet 2
Connect a pipe from the sewage discharge point to 1c, and sewage outlet 2
2c is connected to the sewage inflow pipe of the sewage box with a vacuum valve. Then, the rising pipe 27c is rotated, and the ventilation pipe or the branch pipe of the waste water box with a vacuum valve is connected to the ventilation connection pipe 25c for use. The other points are the same as those of the embodiment shown in FIGS.

[0030]

As described above, according to the ventilation pipe connecting structure of the vacuum sewer system of the present invention, since the tip of the ventilation pipe is open in the rising pipe of the drainage basin, it is not limited to the installation place. It is convenient. In the present invention, two or more drainage boxes are provided, and the ventilation pipe is branched into two or more branch pipes.
If the two or more branch pipes are opened in the two or more drainage basins, respectively, even if the drainage basin is submerged, even one of the two or more drainage basins is not submerged. If there is a masu, the sewage basin will be at atmospheric pressure through the tip of the ventilation pipe that opens into the drainage basin, so there is no hindrance to the inflow of sewage.

If a drainage basin connecting pipe is used, it is convenient because the drainage basin connecting pipe can be used in the present invention only by connecting the drainage basin connecting pipe to the upper opening of the conventional drainage basin. Further, if the connection between the drainage basin connecting pipe and the conventional drainage basin is made rotatable, the ventilation pipe and the ventilation pipe connecting port can be connected by rotating in the direction of the ventilation pipe, which is extremely convenient for construction. .

[Brief description of drawings]

FIG. 1 shows an embodiment of the vacuum sewer system of the present invention, and is an explanatory diagram showing the vacuum sewer system.

FIG. 2 is a cross-sectional view of a waste water container with a vacuum valve used in the vacuum sewer system of FIG.

FIG. 3 is a cross-sectional view showing a drainage basin used in the vacuum sewer system of FIG.

FIG. 4 shows another embodiment of the vacuum sewer system of the present invention, and is an explanatory view of a drainage basin.

FIG. 5 is a front view of a drainage pipe connecting pipe.

6 is a cross-sectional view taken along line VI-VI of FIG.

FIG. 7 shows another embodiment of the present invention and is a cross-sectional view of a drainage pipe connecting pipe.

FIG. 8 is a perspective view of a drainage basin, showing still another embodiment of the present invention.

9 is a cross-sectional view of the drainage basin shown in FIG.

[Explanation of symbols]

 1 Sewage discharge point 2, 2a, 2c Drainage box 20 Conventional drainage box 201 Upper opening 202 Drainage box connection pipe 203 Drainage box connection port 21, 21c Drainage inflow port 22, 22c Drainage outflow port 25 Vent pipe connection port 3 Vacuum valve With sewage box 31 Ventilation tube 32 Breather tube 4 Vacuum valve 6 Sewage box section 7 Sewage inflow tube 8 Detection tube 9 Sewage suction tube 10 Vacuum sewage tube

Claims (1)

[Claims] 1. A sewage discharged from a sewage discharge point is temporarily stored in a sewage box with a vacuum valve via a drainage basin, and the sewage flowing into the sewage basin with a vacuum valve is vacuum pumped via a vacuum sewage pipe and a vacuum sewage main. In a vacuum type sewer facility that collects at the site and sends it to the sewage treatment plant from here, the sewage box with the vacuum valve,
A sewage basin for temporarily collecting sewage, a detection pipe for detecting the amount of sewage collected in the sewage basin, a sewage suction pipe for sucking sewage from the sewage basin, and a vacuum leading to the sewage suction pipe and the vacuum sewer main. A vacuum valve provided between the waste water pipe and a ventilation pipe is attached to the wall of the waste water drainage box part, and the tip of the ventilation pipe is opened into the rising pipe of the drainage water drainage pipe, and A ventilation pipe connection structure for a vacuum sewer facility, wherein a breathable lid is attached to an upper portion of the rising pipe of the drainage basin.