JP2002070130A - Vacuum sewerage system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum sewerage system capable of disposing sewage discharged from a building or the like even when a vacuum sewage pipe between a vacuum valve unit and a relay pump field can not be used. SOLUTION: This vacuum sewerage system has the vacuum valve unit having a sewage tank and the vacuum sewage pipe for transferring the sewage in the sewage tank with vacuum pressure. A connecting part for removably connecting a downstream pipe is provided in the vicinity of the downstream side of a gate valve, and a carrier vehicle is loaded with a collecting tank and a vacuum pump, and the vacuum sewage pipe connected to the collecting tank is connected to the downstream side of the connecting part. The vacuum sewage pipe on the downstream side of the connecting part is laid to be exposed on the ground through a hole for storing the connecting part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum sewer system for transferring sewage using vacuum.

[0002]

2. Description of the Related Art Conventionally, when laying a vacuum sewer pipe constituting a vacuum type sewer system, the burial depth of the pipe is 1.2 m.
To this extent, a trench was cut in the ground, a vacuum drain pipe was buried in the trench, and then the soil was buried and the so-called digging method was used.

[0003]

Therefore, laying of the vacuum sewer pipe requires a certain period of work, so that even if the vacuum valve unit is installed, the vacuum sewer system cannot be used immediately. The applicant has already proposed a method in which a vacuum sewer pipe is inserted into an existing sewer pipe to lay it in order to shorten the construction period and reduce pipeline construction costs. Existing sewage pipes become unusable with the start of laying work, and the treatment of sewage that occurs daily until the laying of vacuum sewer pipes is completed becomes a problem. It is also necessary to take measures when the vacuum sewer becomes unusable in a disaster or the like.

[0004] Therefore, the present invention provides a method for controlling the use of a vacuum drain pipe between a vacuum valve unit and a relay pump station even during a period in which the use of the vacuum drain is not possible.
It is an object of the present invention to provide a vacuum sewer system capable of treating sewage discharged from buildings and the like.

[0005]

According to the first aspect of the present invention, there is provided a vacuum valve unit having a sewage tank for temporarily storing sewage discharged from a building or the like, and the sewage tank. A vacuum sewer system having a vacuum sewer pipe for transferring sewage in the vacuum using vacuum pressure, near the downstream side of a gate valve installed in a pipeline connected to the sewage tank, downstream from it A connection part for detachably connecting the pipes is provided, and a water collecting tank and a vacuum pump for generating vacuum pressure for sucking sewage into the water collecting tank are mounted on a transport vehicle. A vacuum sewer connected to the tank was connected downstream of the connection.

According to the first aspect of the present invention, a connecting portion for detachably connecting a pipe downstream therefrom is provided near the downstream side of the gate valve installed in the pipe line connected to the sewage tank. A water collecting tank and a vacuum pump for generating vacuum pressure for sucking sewage into the water collecting tank are mounted on a truck, and the vacuum sewer pipe connected to the water collecting tank mounted on the truck is connected to the collecting tank. Since it is connected to the downstream side of the unit, if the pipeline from the building etc. to the vacuum valve unit is operable,
It is immediately possible to use a vacuum sewer system.

According to the second aspect of the present invention, there is provided a vacuum valve unit having a sewage tank for temporarily storing sewage discharged from a building or the like, and a vacuum sewer pipe for transferring sewage in the sewage tank using vacuum pressure. Vacuum sewer system having
In the vicinity of the downstream side of the gate valve installed in the pipeline from the sewage tank to the relay pump station, a connection portion for detachably connecting a vacuum sewer pipe downstream therefrom is provided, and a vacuum sewer pipe downstream thereof. However, it is laid out from the hole for accommodating the connection part to the ground.

According to the second aspect of the present invention, a vacuum sewer pipe downstream of the gate valve is detachably connected to the vicinity of the downstream side of the gate valve installed in the pipeline from the sewage tank to the relay pump station. A connecting part is provided, and a vacuum sewer pipe on the downstream side thereof is laid out from the hole accommodating the connecting part to the ground, and when the vacuum sewer pipe is laid on the ground, the construction is completed in a short time, so If the pipeline from the building or the like to the vacuum valve unit and the relay pump station or the hypothetical relay pump station can be operated, the vacuum sewer system can be used immediately.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic explanatory view showing a first embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a building, such as a private house, an apartment house, a facility, and the like. Sewage is discharged to the outside from toilets and washstands installed inside the building 1.
The sewage discharged from the building 1 flows into the sewage tank 14 of the vacuum valve unit 10 through the inflow pipe 2. A vent pipe 3 may be provided in the middle of the inflow pipe 2 in order to introduce sufficient air into the vacuum valve unit. In addition, a measure 4 may be provided for checking or cleaning the inflow pipe 2.

The vacuum valve unit 10 is provided with a water level detecting pipe 11 for detecting the water level in the sewage tank 14. When it is detected that the water level in the sewage tank 14 has risen to a predetermined level, the vacuum valve 12 is opened, and suction of sewage from the suction pipe 16 by vacuum pressure is enabled. A gate valve 13 is attached downstream of the vacuum valve 12. Further, a mounting pipe 15 is connected to the downstream side of the gate valve. In the vicinity of the outside of the vacuum valve unit, a connection hole 20 is provided by digging a small hole in the ground, and the mounting pipe 1 is provided.
5 and a connecting portion 21 between the vacuum sewer 30. The connection hole 20 only needs to be large enough to accommodate the connection portion 21 and perform a connection operation.

[0011] The connecting portion 21 includes a mounting pipe 15 and a vacuum sewer pipe 30.
Are configured to be detachably connected. For example, a structure like a union joint used for water and gas piping may be used. That is, the union screw, the union nut, and the union flange are configured, and the union nut that locks the union flange is screwed into the union screw and detachably connected. A structure that can be easily connected and detached by a screwing method without rotating the pipe is preferable. However, it is necessary to have a strength that can withstand the vacuum pressure.

The connection part 21 is connected to a vacuum sewer pipe 30 from a transportation vehicle 50. The vacuum sewer pipe 30 is connected to a water collecting tank 51 mounted on a transport vehicle 50, and a vacuum pump 52 is connected to the water collecting tank 51. A vacuum pressure is generated by a vacuum pump 52, and sewage is collected in a water collecting tank 51 from the vacuum sewer pipe 30 by using the vacuum pressure. The power source for operating the vacuum pump 52 includes a transport vehicle 50.
Engine available.

The water collecting tank 51 includes a pressure pump 53.
Is connected, and pumps the sewage collected in the water collection tank 51 to a sewage treatment plant or a mains sewer line. The basic function of the relay pump station is provided on a transport vehicle to make it movable. After connecting the mounting pipe 15 and the vacuum sewer pipe 30 by the connecting part 21, the vacuum pump is operated and the gate valve is opened, and thereafter, when viewed from the vacuum valve unit side, there is no difference from a normal vacuum type sewer system. Operable. That is, the sewage in the sewage tank 14 is sucked from the suction pipe 16,
The water is transferred to the water collecting tank 51 through the vacuum drain pipe 30.
When the suction of the wastewater is completed and the wastewater tank 14 becomes empty, the gate valve 13 is closed, and the vacuum drain 30 is removed from the connection part 21. It is desirable that a lid be provided in the connection hole 20.

After the completion of the laying work of the vacuum sewer pipe, or when the vacuum sewer pipe that has become unusable due to a disaster or the like is restored, the pipe end of the vacuum sewer pipe is connected to the connection part 21. This will bring the vacuum sewer system into full operation.

FIG. 2 is a schematic explanatory view showing a second embodiment of the present invention. In FIG. 2, since the pipeline and the configuration from the building 1 to the connection hole 20 are the same as those in the first embodiment, the description is omitted.

In the second embodiment, the end of a vacuum sewer pipe 40 laid on the ground is inserted into the connection hole 20 and connected to the connection part 22 housed therein. It is desirable that a lid be provided in the connection hole 20. The other end is connected to a water collecting tank (not shown) installed in the relay pumping station 60. The relay pump station 60 is provided with facilities corresponding to the water collecting tank 51, the vacuum pump 52, and the pressure pump 53 of the first embodiment (not shown).

In the case of piping on the ground, excavation work is not required, so that the work of laying the vacuum sewer pipe 40 is completed in a short time. In addition, a flexible pipe or a vinyl chloride pipe having strength enough to withstand vacuum is used as the vacuum sewer pipe to be laid on the ground. A junction may be provided in the middle of the vacuum drain pipe to collect sewage from other vacuum valve units together. Further, the relay pumping station 60 may be temporary.

After connecting the attachment pipe 15 and the vacuum sewer pipe 40 by the connection part 22, the vacuum pump is operated and the gate valve 1 is opened.
When the valve 3 is opened, it can be operated in the same manner as a normal vacuum sewer system when viewed from the vacuum valve unit 10 side. That is, the sewage in the sewage tank 14 is
And transferred to the relay pump station 60 through the vacuum sewer pipe 40.

After the installation work of the vacuum sewer pipe is completed, or when the vacuum sewer pipe which has become unusable due to a disaster or the like is restored, the pipe end of the vacuum sewer pipe is connected to the connection part 22. This will bring the vacuum sewer system into full operation.

Although the embodiment of the present invention has been described above, the present invention can be implemented in a modified form as follows. For example, in the above-described embodiment, a connection portion and a connection hole for accommodating the connection portion are provided adjacent to the vacuum valve unit, but a further downstream side of the connection portion has already been buried. Provide a gate valve in the middle of the vacuum sewer pipe,
A connection may be brought near the downstream side. The connection with the vacuum sewer pipes 30 and 40 on the ground is performed using this connection part. In this case, the wastewater in the vacuum valve units installed at several places can be collectively collected instead of being individually collected. Further, the piping portion exposed to the ground can be reduced, and the connection hole can be installed in a place where it is not inconvenient.

[0021]

As described in detail above, according to the first aspect of the present invention, the function of the relay pumping station is provided in the carrier so that it is movable, so that the pipeline from the building or the like to the vacuum valve unit is provided. As long as it is operational, the use of a vacuum sewer system can be enabled immediately. According to the second aspect of the present invention, when laying the vacuum sewer pipe on the ground, the construction is completed in a short time, so the pipeline from the building or the like to the vacuum valve unit and the relay pump station or the temporary relay pump are provided. As long as the site is operational, the use of a vacuum sewer system can be enabled immediately.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing a first embodiment of the present invention.

FIG. 2 is a schematic explanatory view showing a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building 2 Inflow pipe 3 Ventilation pipe 4 Masu 10 Vacuum valve unit 11 Water level detection pipe 12 Vacuum valve 13 Gate valve 14 Sewage tank 15 Mounting pipe 16 Suction pipe 20 Connection hole 21, 22 Connection part 30, 40 Vacuum sewer 50 Car 51 water collecting tank 52 vacuum pump 53 pressure pump 60 relay pump station

Claims (2)

[Claims] 1. A vacuum type sewer system having a vacuum valve unit having a sewage tank for temporarily storing sewage discharged from a building or the like, and a vacuum sewage pipe for transferring sewage in the sewage tank using vacuum pressure. In the vicinity of the downstream side of the gate valve installed in the pipeline from the sewage tank to the relay pump station, a connection portion for detachably connecting a vacuum sewer pipe downstream therefrom is provided, and a downstream vacuum side thereof is provided. A vacuum type sewer system, wherein a sewer pipe is laid out above the ground through a hole accommodating the connection part. 2. A vacuum sewer system having a vacuum valve unit having a sewage tank for temporarily storing sewage discharged from a building or the like, and a vacuum sewer pipe for transferring sewage in the sewage tank using vacuum pressure. Near the downstream side of the gate valve installed in the pipeline connected to the sewage tank, there is provided a connection portion that detachably connects a pipe downstream therefrom, and a water collecting tank and the water collecting tank thereof. A vacuum pump that generates vacuum pressure for sucking sewage is mounted on a transport vehicle, and a vacuum sewer connected to a water collection tank mounted on the transport vehicle is connected to a downstream side of the connection portion. And vacuum type sewer system.