JPH05280088A - House inlet with vacuum valve - Google Patents

Abstract

PURPOSE:To possibly discharge accumulated sewage water to the last drop from a sewage water suction pipe, execute installation of the device stably and relatively easy, and reduce execution cost. CONSTITUTION:In a house inlet 1a with a vacuum valve in which sewage water is temporarily accumulated, and when a certain quantity is accumulated, the vacuum valve 4 is opened so as to suck and discharge the sewage water from a sewage water suction pipe 9 inserted into a house inlet 6 to a vacuum sewage water pipe 10 of negative pressure therein, the external form and size of a house inlet main body 2 are nearly equal to those at the center part and the lower part, and the interior of the house inlet main body 2 is divided with a partition plate 3 into an upper vacuum valve chamber 5 provided with the vacuum valve 4, and the lower catch basin part 6 for temporarily accumulating sewage water. The house inlet part 6, is formed in a house inlet 18 with its lower sectional area contracted in a funnel-shape by a water non-permeable house inlet inner wall 17 provided inside the outer wall 16 of the house inlet main body 2. An opening 19 to pentrate the outer wall 16 is provided on the outer wall 16 of the house inlet 18 part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wastewater discharge facility for households, etc. The present invention relates to a wastewater tank with a vacuum valve provided between the vacuum wastewater pipe and the

[0002]

2. Description of the Related Art The above-mentioned vacuum-type sewerage facility has characteristics different from the conventional natural-flow-type sewerage facility, attracting the interest of local governments, and the recognition of the vacuum-type sewerage facility is spreading.

In a vacuum type sewerage facility, sewage discharged from a home or the like naturally flows down a sewage inflow pipe via a meeting place and flows into a sewage masu with a vacuum valve. Sewage with a vacuum valve When a certain amount of sewage is accumulated in the sewage masu, the vacuum valve opens and the sewage suction pipe inserted in the sewage mist sucks and discharges sewage into the vacuum sewage pipe with a negative pressure inside, and the sewage is vacuumed from the vacuum sewage pipe. It is collected at the vacuum sewage pump station established in the area via the main sewer system.

The above-mentioned sewage tank with a vacuum valve is buried in the ground, and the structure thereof is, for example, JP-A-3-247.
It is also disclosed in Japanese Patent No. 828.

FIG. 3 is a sectional view of a conventional sewage tank with a vacuum valve. The main body 2 of the sewage masu 1 with a vacuum valve is
It is made of glass fiber reinforced plastic and has a light weight in the shape of a bulge in the central part and the upper and lower parts are narrow, and the inside of the sewage body 2 is partitioned by a partition plate 3 and the upper part is a vacuum valve with a vacuum valve 4 installed. The lower part of the chamber 5 is a sewage trap section 6 for temporarily collecting sewage.

A sewage inflow pipe 7 for taking in sewage generated at home is attached to the sewage masu portion 6, and when the sewage flowing in from the sewage inflow pipe 7 is accumulated in the sewage water masu portion 6 to a certain amount, that is, to a certain level. The water level detection pipe 8 sends a signal to the vacuum valve 4, the vacuum valve 4 opens the closed valve, and the sewage suction pipe 9 inserted into the sewage drainage part 6 to the vacuum sewage pipe 10 with a negative pressure inside.
Inhale and discharge sewage. The vacuum wastewater pipe 10 is connected to the vacuum sewer main pipe 11, and the wastewater is collected at a vacuum wastewater pumping station (not shown).

[0007] 12 is a lid of the sewage masu with a vacuum valve, and 1
A breather pipe 3 is a pipe for introducing atmospheric pressure necessary for operating the vacuum valve 4.

Reference numeral 14 is a weight material for preventing levitation, which is a weight material attached to the outer wall of the main body 2 of the sewage filter to prevent the sewage tank 1 with a vacuum valve from floating due to liquefaction of groundwater or soil. Yes, concrete annulus is common.

[0009]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The conventional sewage basin 1 with a vacuum valve described above is designed so that the sewage collected in the sewage basin 6 can be discharged from the sewage intake pipe 9 as much as possible, and the weight of the main body 2 of the sewage masu is reduced. In order to minimize the inner volume of the main body 2 of sewage water and prevent it from rising due to groundwater, etc., the main body 2 of sewage water swells in the central portion by the required space as described above, and has a shape with a narrowed upper and lower part. It is made of glass fiber reinforced plastic and is lightweight.

However, since the lower part is thin and the bottom area is small, the stability of the main body 2 of the dirty water is poor at the time of installation work, and there is a problem that a lot of labor is required for installation work. Also, even if the inner volume of the sewage body 2 is reduced, there is a risk of levitation, and it is necessary to attach a weight material 14 for preventing floating, such as a ring of concrete, to the outer wall of the sewage body 2. Therefore, the sewage body 2 There is also a problem that the drilling hole for installing the slab becomes large and the number of man-hours is large.

Further, a straight pipe is used as the sewage suction pipe 9 which is inserted into the sewage drainage part 6 and sucks and discharges the sewage, and the suction port 15 at the end of the pipe is simply cut. The sewage flowing into the sewage masu portion 6 contains long solids such as disposable chopsticks, and is caught on the suction port 15 of the sewage suction pipe 9,
Further, there is a problem that paper or the like adheres to this and clogs the dirty water suction pipe 9.

The present invention has been made in order to solve the above-mentioned problems of the prior art, and it is possible to suck and discharge the accumulated sewage from the sewage suction pipe 9 as much as possible, and to improve the stability during installation. It is an object of the present invention to provide a sewage tank with a vacuum valve that is relatively easy to construct and that can reduce construction costs.

Furthermore, it is not necessary to increase the size of the excavation hole for installing the main body 2 of the sewage water for the weight material 14 for preventing the levitation, and the anti-floating measure can be taken. It is an object of the present invention to provide a sewage tank with a vacuum valve that does not cause any trouble such as clogging of the sewage suction pipe even if the sewage is included.

[0014]

[Means for Solving the Problems] Therefore, the sewage muffler with a vacuum valve according to the present invention temporarily collects sewage discharged from homes, etc., and when a certain amount of sewage is accumulated, the vacuum valve is opened and inserted into the sewage masu. A sewage mist with a vacuum valve that discharges sewage from a sewage suction pipe to a vacuum sewage pipe with a negative pressure inside, and the sewage mist body has the same outer shape and size in the central part and the bottom part. The upper part is divided into the vacuum valve chamber where the above-mentioned vacuum valve is installed, and the lower part is divided into the sewage mist part for temporarily collecting sewage, and the sewage mist part is sewage mist. The lower cross-sectional area is reduced to form a sewage masu, and the sewage masu of the sewage masu is surrounded by the outer wall of the body and the outer wall of the body and the sewage masu inner wall. Weight to prevent floating in the space The possible and the structure filled with, is intended to achieve the above object.

Further, the present invention is intended to achieve the above-mentioned object by a construction characterized in that a sewage suction pipe having a suction end at the end of the pipe widened into a trapezoidal shape is inserted into the sewage drainage part.

[0016]

[Operation] As described above, the outer shape and size of the main body of the sewage masu is approximately equal in the central part and the lower part, and the sewage masu is substantially funnel-shaped due to the inner wall of the impermeable sewage masu located inside the outer wall of the main body By forming a sewage masu with a reduced cross-sectional area in the lower part, the sewage collected in the sewage masu can be sucked and discharged from the sewage suction pipe as much as possible, and the stability during installation and construction is good It is relatively easy and the construction cost can be reduced.

The sewage masu body has an opening penetrating the outer wall of the sewage masu body, and the space surrounded by the outer wall of the sewage masu body and the inner wall of the sewage masu body can be filled with a weight material for preventing the levitation. It is not necessary to make the excavation hole for installing the slab to be large because of the weight material for preventing levitation, and it is possible to take measures to prevent levitation.

Moreover, even if the inflowing wastewater contains long solids such as disposable chopsticks, the wastewater suction pipe with the suction port at the end of the pipe spreading like a tail is inserted into the wastewater mist portion for temporarily storing the wastewater. It can be sucked together with sewage, and does not cause problems such as clogging of the sewage suction pipe.

[0019]

[Embodiment] The sewage tank with a vacuum valve according to the present invention will be described below with reference to an embodiment. FIG. 1 is a cross-sectional view of one embodiment, in which the same or corresponding portions as those of the conventional sewage tank with a vacuum valve are indicated by the same symbols.

The main body 2 of the sewage basin 1a with a vacuum valve according to the present embodiment is made of glass fiber reinforced plastic or the like in a shape that the central portion and the lower portion are substantially the same in outer shape and size, and is made lightweight. The inside of 2 is partitioned by a partition plate 3, the upper part is a vacuum valve chamber 5 in which a vacuum valve 4 is installed, and the lower part is a sewage treatment part 6 for temporarily collecting sewage.

The sewage masu portion 6 is an outer wall 16 of the sewage masu body 2.
An impermeable sewage muffle inner wall 17 provided on the inner side forms a sewage maze 18 having a lower cross-sectional area reduced in a substantially funnel shape.

Further, an impermeable sewage sewage inner wall 17 has a substantially funnel-shaped reduced cross-sectional area at the lower portion of the sewage sewage 18 part of the sewage sewage body. The outer wall 16 of the main body 2 has an opening 19 penetrating the outer wall 16. In addition, the space 20 surrounded by the outer wall 16 and the dirty water inner wall 17 can be filled with concrete, earth or sand, groundwater or the like as a weight material for preventing floating.

A sewage inflow pipe 7 for taking in sewage generated at home or the like is attached to the sewage masu part 6, and a certain amount of the sewage from the sewage inflow pipe 7, that is, a water level detection pipe when the sewage is accumulated to a certain level. 8 sends a signal to the vacuum valve 4, the vacuum valve 4 opens the closed valve, and the sewage suction pipe 9 inserted in the sewage drainage part 6 sucks the sewage into the vacuum sewage pipe 10 having a negative pressure inside and discharges it. . The vacuum sewage pipe 10 is a vacuum sewer main 11.
The waste water is collected in a vacuum type waste water pump station (not shown).

Reference numeral 12 is a lid for a waste water tank with a vacuum valve, 13 is a breather pipe, and is a pipe for introducing atmospheric pressure to operate the vacuum valve 4.

As described above, the outer shape and size of the main body 2 for sewage treatment is substantially the same in both the central portion and the lower part, and the sewage treatment portion 6
Is an impermeable sewage muffler inner wall 17 provided inside the outer wall 16 of the main body 2. By forming a sewage masu 18 having a substantially funnel-shaped lower cross-sectional area, the sewage mist 18 is collected. As much as possible can be sucked in and discharged from the sewage suction pipe 9, the stability at the time of installation work is good, and the construction is relatively easy, and the construction cost can be reduced.

A structure is provided which has an opening 19 penetrating the outer wall 16 of the main body 2 of the sewage muffler, and a space 20 surrounded by the outer wall 16 of the main body of the sewage sac and the inner wall 17 of the sewage mist can be filled with a weight material for preventing floating. As a result, ascending prevention measures can be taken without increasing the size of the excavation hole for installing the sewage muddy body 2 due to the weight material for preventing levitation.

When no floating prevention measures are required, the opening 19 penetrating the outer wall 16 of the main body 2 for sewage treatment.
The above-mentioned formation may be made unnecessary.

(Other Embodiments) FIG. 2 is a cross-sectional view of another embodiment, in which the same or corresponding parts as those of the above-mentioned embodiment or the conventional sewage tank with a vacuum valve are designated by the same reference numerals, and the duplicate description will be omitted. Omit it.

This embodiment is the same as or similar to the above-mentioned embodiment or the conventional sewage tank with a vacuum valve, but is inserted into the sewage tank portion 6 for temporarily storing sewage and sucks and discharges the sewage collected. The feature is that the shape of the suction port 15 at the pipe end of the sewage suction pipe 9 that spreads out is wide.

That is, in this embodiment, the sewage suction pipe 9 has an inner diameter of 75.
Use a pipe of mm or more, and install the suction port 15 at the end of the pipe within 50 mm from the bottom of the part 6 for sewage.
The opening diameter of No. 5 is broadly expanded to about 200 mm to 300 mm. The radius of curvature of the flared side surface is preferably about 200 mm to 400 mm.

Depending on the shape of the bottom of the dirty water muddy portion 6, the tube end opening of the suction port 15 is not limited to a circular shape, but may be an elliptical shape.

The sewage suction pipe 9 having a suction port 15 at the end of the pipe is inserted into the sewage masu portion 6 for temporarily storing sewage, so that the inflowing sewage contains long solids such as disposable chopsticks. Can also be sucked in together with sewage, and there is no problem such as clogging of the sewage suction pipe.

[0033]

[Effects of the Invention] As described above, in the sewage masu with the vacuum valve according to the present invention, the outer shape and size of the main body of the sewage masquerade are substantially the same in the central part and the lower part, and the sewage masquerade part is inside the outer wall of the main body. Since the inner wall of the impermeable sewage masu provided on the inside of the sewage mast reduces the cross-sectional area of the lower part in a funnel shape, the sewage mist accumulated in the sewage masu can be sucked and discharged from the sewage suction pipe as little as possible. In addition, the installation is stable and the construction is relatively easy, and the construction cost can be reduced.

The sewage masu body has an opening that penetrates the outer wall of the sewage masu body, and the structure surrounded by the outer wall of the sewage masu body and the inner wall of the sewage masquette can be filled with a weight material for preventing floating. It is not necessary to increase the size of the excavation hole for lifting because of the weight material for floating prevention, and it is possible to take measures to prevent floating.

Furthermore, the construction is such that a sewage suction pipe whose suction port at the end of the pipe is widened in a trapezoidal shape is inserted into the sewage muddy portion, so that even if the inflowing sewage contains long solids such as disposable chopsticks, It can be inhaled and does not cause any trouble such as clogging of the sewage suction pipe.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment.

FIG. 2 is a cross-sectional view of another embodiment.

FIG. 3 is a sectional view of a conventional sewage basin with a vacuum valve.

[Explanation of symbols]

 1 Conventional sewage with a vacuum valve 1a Sewage with a vacuum valve of one embodiment 1b Sewage with a vacuum valve of another embodiment 2 Sewage body 3 Partition plate 4 Vacuum valve 5 Vacuum valve chamber 6 Sewage masu 7 Inflow of sewage Pipe 8 Water level detection pipe 9 Sewage suction pipe 10 Vacuum sewage pipe 11 Vacuum type sewer main 14 Floating prevention weight material 15 Suction port 16 Outer wall 17 Sewage water inner wall 18 Sewage water 19 Opening 20 Space

Claims (2)

[Claims] 1. The sewage discharged from homes is temporarily stored,
It is a sewage system with a vacuum valve that discharges sewage from a sewage suction pipe inserted into the sewage basin into a vacuum sewage pipe with a negative pressure inside when the sewage has accumulated a certain amount. The central part and the lower part are almost equal, and the inside of the main body is divided by the partition plate into the upper part of the vacuum valve chamber where the vacuum valve is installed, and the lower part is divided into the sewage mist part for temporarily storing the sewage.
The sewage masquette part is a sewage masquerade. An impermeable sewage masquette inner wall provided inside the main body reduces the cross-sectional area of the lower part in a funnel shape to form a sewage masu, and the sewage masquerade part of the main body outer wall 2. A weight material for floating prevention can be filled in a space surrounded by the outer wall of the main body of the dirty water and the inner wall of the dirty water tank, the opening having an opening penetrating the outer wall.
Sewage with a vacuum valve as described. 2. The sewage discharged from homes is temporarily stored,
A sewage with a vacuum valve that discharges sewage from a sewage suction pipe inserted into the sewage mist part to a vacuum sewage pipe with negative pressure when a certain amount of sewage is accumulated. A sewage system with a vacuum valve, characterized in that a sewage suction pipe spread over the inside is inserted into the sewage chamber section.