JPH0723677Y2 - Contaminant removal tube - Google Patents

Description

TECHNICAL FIELD The present invention relates to a contaminant removal tube.

2. Description of the Related Art Conventionally, a pipe line using a cast iron pipe or the like is often used when guiding water taken in on the upstream side to a utilization facility on the downstream side.

However, if foreign matter such as mud enters the pipeline, this contaminant will be transferred to the downstream facility along with the water, which will cause obstacles when using water supply at the facility. Becomes

SUMMARY OF THE INVENTION It is therefore an object of the present invention to solve the above problems and to provide a contaminant removal pipe capable of easily removing contaminants in a conduit with a simple structure.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention has a larger diameter than a water distribution pipe and is connected in the middle of the water distribution pipe through a deformed pipe whose diameter gradually increases. A horizontal main body pipe, and an upper portion that is arranged over a certain range from the upstream side to the downstream side inside the main body pipe, and the inside of the main body pipe in this certain range freely communicates with the downstream side, and the downstream end. And a partition member that partitions into the lower portion of the closed structure and that allows water to pass through but prevents permeation of contaminants, and one end side of the lower portion below the partition member that is open and the main body tube And a vertical mixture take-out pipe that penetrates through the top of the main body pipe and has the other end opening outside the main body pipe.

Action In such a structure, since the contaminant such as mud generally has a larger specific gravity than water, it moves along with the water flow along the bottom of the water distribution pipe, and the diameter of the deformed pipe gradually increases toward the main pipe. As a result, the flow velocity reaches the inside of the main body pipe in a state in which the flow velocity becomes slower accordingly, so that the flow enters the lower portion of the main body pipe below the partition member. Then, such a contaminant is prevented from permeating to the downstream side by the partition member, and the contaminant in the lower portion is caused by the energy of the water flow in the pipeline or by applying a negative pressure to the contaminant extraction pipe. The contaminants are introduced into the extraction pipe through the opening on one end side of the extraction pipe.

Then, it is taken out of the water distribution pipe through the other end side opening of the contaminant take-out pipe.

Embodiment In FIGS. 1 to 3, reference numeral 1 denotes a water distribution pipe, which is constituted by a ductile cast iron pipe or the like and is buried horizontally in the ground. This water distribution line 1 has an inner diameter d. A horizontal main body pipe 3 is connected in the middle of the water distribution pipe 1 through a deformed pipe 2 having a gradually increasing diameter. Body tube 3
Has an inner diameter D ₁ .

A partitioning member that partitions the interior of the main body tube 1 into an upper portion 5 and a lower portion 6 at a central position in the vertical direction of the main body tube 1 within a certain range of the main body tube 3 from the upstream side opening 4 toward the downstream side. 7 is provided. The partitioning member 7 is composed of a wire mesh or a perforated plate and is configured to allow water to permeate but prevent permeation of contaminants. The downstream end portion 8 of the partition member 7 is configured so as to be inclined toward the bottom portion of the main body pipe 3, and closes the downstream end of the lower portion 6.

At the position where the downstream end 8 of the partition member 7 is present, a vertical contaminants extraction pipe 9 that penetrates the top of the main body pipe 3 is provided. The contaminants extraction pipe 9 has a lower end opening 10 communicating with the lower portion 6, and the lower end opening 10 is diagonally cut so that its peripheral edge corresponds to the inclination of the downstream end portion 8 so as to be upstream. It is configured to open toward. An upper end opening 11 of the contaminant extraction pipe 9 is opened upward outside the main body pipe 3, and a connection flange 12 is formed around the upper end opening 11. The contaminant withdrawal tube 9 has an outer diameter D ₂ .

In such a configuration, the water flowing through the water distribution line 1 13
Reaches the inside of the main body tube 3 through the deformed tube 2. At this time,
Since the inner diameter of the deformed pipe 2 gradually increases toward the downstream side, the flow velocity becomes slower accordingly, and the contaminants 14 such as mud contained in the water 13 surely reach the lower portion 6 of the main body pipe 3. Get in. The partition member 7 prevents the contaminant 14 that has entered the lower portion 6 from permeating to the downstream side. Contaminant
The water 13 that has entered the lower portion 6 together with 14 permeates the partition member 7, and flows to the downstream side together with the water 13 that originally entered the upper portion 5 from the upstream opening 4. The contaminant 14 that has entered the lower portion 6 is caused by the energy of the water flow in the water distribution conduit 1 or the upper end opening of the contaminant extraction pipe 9.
By applying a negative pressure to the 11 side, the mixture is taken into the contaminant extraction pipe 9 from the lower end opening 6 and taken out of the water distribution pipe 1 from the upper end opening 11.

At this time, the lower portion 6 has its cross-sectional area gradually decreased due to the inclination of the downstream end 8 of the partition member 7, and the lower end opening 10 of the contaminant extraction pipe 9 is located at the portion where this cross-sectional area becomes smaller. Therefore, the contaminants 14 gather in the portion where the cross-sectional area is small, and the contaminants take-out pipe 9 can be efficiently used.
Sent to. Further, since the contaminant extraction pipe 9 is arranged in the vertical direction and the upper end opening 11 is located above the main body pipe 3,
Even when the water distribution pipe 1 is buried in the ground, the contaminants 14 can be easily taken out at or near the surface of the ground.

In addition, in order to secure the water passage cross-sectional area of the water distribution pipeline 1 or more even at the position where the contaminant extraction pipe 9 exists, Ie The dimensions of each inner diameter d, D ₁ and outer diameter D ₂ are determined so that

Effects of the Invention As described above, according to the present invention, it is possible to easily remove the contaminants in the water distribution pipe with only a simple configuration including the main body pipe, the contaminant extraction pipe, and the partition member. In addition, the main body pipe is formed with a diameter larger than that of the water distribution pipe, and the main pipe and the water distribution pipe are connected by a deformed pipe whose diameter gradually increases. Since it can be guided to the bottom and the partition member is provided, the contaminant can be reliably removed by the contaminant take-out pipe while preventing the contaminant from flowing out to the downstream side. Furthermore, since the vertical contaminant extraction pipe is projected upward from the horizontal main body pipe, even if the water distribution pipe is buried in the ground, the contaminant can be easily extracted at or near the surface of the ground.

[Brief description of drawings]

FIG. 1 is a perspective view of a contaminant removal pipe according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view thereof, and FIG. 3 is III-III in FIG.
FIG. 1 ... Water distribution pipe, 3 ... Main pipe, 5 ... Upper part, 6 ...
… Lower part, 7 …… Partitioning member, 9 …… Contaminant removal pipe, 10
…… Bottom opening, 11 …… Top opening, 14 …… Mixed material.

Claims (1)

[Scope of utility model registration request] 1. A horizontal main body pipe having a diameter larger than that of the water distribution pipe and connected in the middle of the water distribution pipe through a deformed pipe whose diameter gradually increases. It is arranged over a certain range from the upstream side to the downstream side of the inside, and the inside of the main body tube in this certain range is divided into an upper part that freely communicates with the downstream side and a lower part of the structure in which the downstream end is closed. And a partition member that allows water to pass therethrough but prevents permeation of contaminants and one end side of the lower part below the partition member that is open and that penetrates the top of the main body pipe And a contaminant removal pipe in the vertical direction with the other end open, and a contaminant removal pipe.