JPH0124229Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a sewer pipe through which sewage and rainwater flows.

(Prior Art) Conventionally, there are two types of sewage systems: one in which sewage and rainwater are drained together through a single sewage pipe, and the other in which sewage and rainwater are drained separately in dedicated sewage pipes.

(Problem that the invention aims to solve) However, according to the former sewage system, rainwater that does not require sewage treatment flows together with sewage, so the amount of water to be treated at the sewage treatment plant increases by the amount of rainwater. The burden required to treat sewage increases. In addition, according to the latter sewage system, sewer pipes for sewage and rainwater must be buried separately, which lengthens the construction period, increases the piping area, and increases construction and maintenance costs. There are problems such as higher prices.

The present invention solves the above-mentioned problems and aims to provide a sewage pipe that reduces the burden of sewage treatment, shortens the construction period, reduces the piping area, and reduces costs.

(Means for solving the problem) For this reason, the technical means of the present invention is to provide a vertical wall on the lower side of the inner surface of the sewage pipe body, and divide the inside of the sewage pipe body into a sewage passage and a rainwater passage. However, this is an overflow type multi-chamber sewer pipe in which a gap is formed between the upper surface of the vertical wall and the upper part of the inner surface of the sewer pipe main body. One or more standing walls can be provided, and the area ratio between the wastewater passage and the rainwater passage is determined by the installation position thereof. Note that the cross-sectional shape of the sewer pipe main body may be circular or square.

(Function) By dividing the passage in the main body of the sewage pipe into sewage and rainwater using vertical walls in this way, it is possible to drain sewage and rainwater separately through one sewage pipe. Therefore, rainwater that does not require sewage treatment can form a separate flow path from wastewater that requires sewage treatment, and only rainwater can be diverted from the sewer pipe and discharged into a river or the like as appropriate.

The multi-room sewer pipe of this invention has a predetermined gap formed between the upper part of the vertical wall and the inner surface of the sewer pipe, so even during heavy rain, a large amount of rainwater flows through the rainwater passageway per unit time. Even in this case, rainwater exceeding a predetermined amount depending on the rainwater passageway overflows from the vertical wall to the wastewater passageway side and flows smoothly. This means that
The same applies when the amount of wastewater flowing through the wastewater passage per unit time is large.

(Example) An embodiment of the present invention will be explained below with the help of drawings. Fig. 1 shows an example in which the present invention is applied to a sewage fume pipe (sewage pipe main body) 1, and the inner surface of the fume pipe 1. As shown in FIG. 2, a vertical wall 2 of an appropriate thickness is integrally formed in the center of the lower part, so that the passage inside the humid pipe 1 is divided equally into a sewage passage 3 and a rainwater passage 4. Separated. The height dimension of the standing wall 2 is smaller than the inner diameter of the hume tube 1 by a required dimension, and a gap is provided between the upper surface of the standing wall 2 and the upper inner surface of the hume tube 1. One end of the sewage introduction pipe 5 and one end of the rainwater introduction pipe 6 are attached to the sewage passage 5 side and the rainwater passage 6 side of the upper part of the humid pipe 1, respectively. Connected to sewage basin and rainwater basin.

With this structure, sewage and rainwater flow separately through the sewage passage 3 and rainwater passage 4, respectively, and rainwater that does not require sewage treatment is drained to rivers or lakes at appropriate locations, regardless of the sewage flow path. , and can be released directly into the ocean.

Here, assuming an abnormal situation in which the amount of rainwater per unit time is greater than a predetermined limit amount, the excess rainwater at this time will flow over the vertical wall 2 and enter the sewage passage 4 side. Become. Therefore, even if the amount of rainwater increases abnormally, it can be adequately coped with. On the other hand, when the amount of sewage and rainwater is small, the capacity of the bottom side of the sewage passage 3 and rainwater passage 4 is small, so the water depth becomes deeper than before for a certain amount of sewage and rainwater, and the sewage and ensure smooth flow of rainwater even when there is little rainwater.

3 and 4 respectively show other embodiments, in which the vertical wall 2 is arranged slightly shifted toward the sewage passage 3 side from the center of the inner lower part of the fume pipe 1. This makes it suitable for burial in areas where the amount of rainwater is greater than sewage. On the contrary, the structure shown in FIG. 4 has the standing wall 2 slightly shifted toward the rainwater passageway 4 side, and is suitable for burial in an area where the amount of sewage is larger than that of rainwater.

FIG. 5 is a diagram showing still another embodiment, in which two vertical walls 2, 2' are provided at the lower part of the inner surface of the hume tube 1,
A sewage passage 3 or a rainwater passage 4 is formed between the vertical walls 2 and 2' and the side wall of the humid pipe 1, and a rainwater passage 4 or a sewage passage 3 is formed between the vertical walls 2 and 2'.
was formed. With such a structure, when the fume pipe 1 is sandwiched and buried in a place where sewage or rainwater flows in from both sides, piping such as an attachment pipe can be easily constructed.

In the embodiment, the present invention was applied to a fume pipe, but the present invention can also be applied to a box culvert (sewage pipe main body) 1', as shown in FIGS. 6 to 9, respectively. In addition,
In FIGS. 3 to 9, the same components as in FIG. 1 are designated by the same reference numerals.

(Effects of the invention) As described above, according to the invention, since wastewater and rainwater are configured to flow separately in one sewer pipe, only rainwater can be discharged from an appropriate point into a river, etc. The processing burden on sewage treatment plants will be reduced accordingly. In addition, in the past, two sewer pipes had to be buried in order to drain sewage and rainwater independently, but with this invention, only one sewer pipe is required, which can significantly shorten the construction period. Along with this, the piping space is reduced and construction and maintenance costs are reduced.

Furthermore, if the amount of rainwater per unit time increases and the water depth becomes greater than a certain value, the excess rainwater will
Since it overflows from the vertical wall and flows through the sewage passage, even if the amount of sewage or rainwater increases abnormally, it can be dealt with quickly enough. In addition, when the amount of sewage and rainwater is small, the capacity of the sewage passage and rainwater passage is divided and smaller, so the water depth becomes deeper than before for a certain amount of sewage and rainwater, and the sewage and rainwater is Even if it is small, smooth flow can be ensured.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figures are cross-sectional views taken along the - line, Figures 3 and 4.
The figures are cross-sectional views showing other embodiments of the present invention, Fig. 5 is a cross-sectional view showing still other embodiments of the present invention, and Figs. 6 to 9 respectively show the application of the present invention to a box culvert. FIG. 1...huum pipe, 1'...box culvert, 2...standing wall, 3...sewage passage, 4...rainwater passage.

Claims (1)

[Scope of utility model registration request] A vertical wall is provided on the lower part of the inner surface of the sewer pipe body to divide the passage of the sewer pipe body into a sewage passage and a rainwater passage, and a gap is provided between the upper surface of the vertical wall and the upper inner surface of the sewer pipe body. This is an overflow type multi-chamber sewer pipe.