JPH09144122A - Drainage pipe, sideditch, and drainage ditch having structure for speeding up wastewater flow - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the stagnation of wastewater due to reduction in the flow velocity even when the flow rate of wastewater is small, and sufficiently cope with a large amount of the wastewater by forming a drainage ditch into a V-shaped section, which is made of a concrete, backed clay and synthetic resin. SOLUTION: A drainage ditch body 1 made of concrete, burned clay, synthetic resin is formed of a channel having a V-shaped 2 cross-section (from the cross-section view) for increasing the speed of wastewater, and a square substructure having recessed part 3 for reducing the weight on both faces to be used to construct drainage pipes, sideditches, and drainage ditches. Since the cross-section of the V-shaped 2 channel is small in the lower part, the flow velocity of wastewater is not decreased even when the flow rate is small, and the wastewater can flow downward to a cesspool without causing the stagnation of sludge, refuse, sewage. Thus, the V-shaped channel can be applied to small type ditches, medium type drainage ditches such as road sideditches, and upper part-opened waterways for roads, underground closed type large waterways. As a result, the cost of cleaning is reduced, and sanitary municipal environment can be realized.

Description

Detailed Description of the Invention

[0001]

[Industrial application] This relates to a structure for increasing the drainage flow velocity, a drainage pipe having a shape, a gutter, and a drainage channel (hereinafter simply referred to as a drainage channel).

[0002]

[Conventional branch surgery] Conventionally, there is a U-shaped or square drainage channel as shown in the figure for the structure and bottom, and there was no problem when the amount of water was large, but when the amount of water was small, sludge and dust were collected at the bottom of the drainage channel. However, it was unsanitary due to the accumulation of organic substances, etc., and it also caused foul odors and methane gas generation due to decay. Also, due to mud and dust accumulated at the bottom, sewage was also accumulated in the middle of the drainage channel, which was a cause of mosquitoes and flies. As is well known, the increase in cleaning costs for public bodies in large canals and road gutters has become a social problem.
Also, in factories and stores that have cooking facilities, garbage and vegetable debris enter the drainage channel, and when cleaning a small amount of water, the garbage and the like could not flow down to the basin, which was a source of concern for hygiene.

[0003]

In order to solve this drawback, a large amount of water can be handled without much difference from the conventional drainage channel, and when the amount of water is small, the cross-sectional area is larger than that of the conventional U-shaped or square drainage channel. By decreasing, the water level rises when the same amount of sewage flows, and it works as if the slope of the water channel had become large.
As a result, the running water velocity increases and the purpose can be achieved.

[0004]

[Means for solving the problem] In order to achieve the above purpose,
The lower structure and shape were devised to have a smaller cross-sectional area so that the water level could be raised appropriately. However, if the cross-sectional area is extremely small, the flow velocity will increase or the drainage capacity will decrease, which is not a practical solution. With an effective cross-sectional shape, the flow velocity increased and the above sludge, dust, and sewage could be made to flow down to the basin, and many problems could be solved.

[0005]

According to the present invention, in order to increase the flow velocity of the drainage channel while using the existing technology, the measuring groove, the substructure of the drainage channel,
It is a device with a devised shape. Due to the idea of increasing the water flow rate, small can be applied to small drainage channels of 200 mm or less to medium-sized drainage channels such as road gutters, and large can be applied to open large waterholes for roads and closed large underground channels. It can be widely applied without limitation in use and scale.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in the drawings show only one aspect, and are not limited thereto. As shown in FIG. 3, it is a drainage channel having a V-shaped substructure according to the present invention. As shown in FIG. 4, the drainage channel of the present invention has a polygonal shape (in the case of a quadrangular shape in this figure). As shown in FIG. 5, this is a drainage channel having a semi-circular lower structure of the present invention. As shown in FIG. 6, this is a drainage channel having a semi-elliptical shape as the lower structure of the present invention.

[0007]

When this drainage channel is used, the small drainage channel drainage pipe, which is easy to be clogged, has a great effect because dirt and sewage easily flow. Also, in the case of open road gutters or underground gutters, sludge dust easily flows and sewage does not stagnant. Furthermore, in the case of large open canals and underground buried canals, this principle can quickly allow dust, sewage, sludge, and organic substances to flow down, reducing cleaning costs and achieving a sanitary urban environment. Economical and practically effective.

[Brief description of the drawings]

FIG. 1 is a conventional U-shaped drainage channel.

FIG. 2 is a perspective view of a V-shaped drainage channel of the present invention.

FIG. 3 is a sectional view of the drainage channel of FIG. 2 of the present invention.

FIG. 4 is a cross-sectional view of a polygonal drainage channel of the present invention.

FIG. 5 is a sectional view of a semi-circular drainage channel of the present invention.

FIG. 6 is a sectional view of a semi-elliptical drainage channel according to the present invention.

FIG. 7 is an example of the V-shaped drainage channel of FIG. 3 applied to the underground buried type drainage channel of the present invention, but the shapes of FIGS. 4 to 6 are also applicable.

[Explanation of symbols] Scarlet waterway body Shows a shape that enhances drainage speed Dent on both sides to reduce material and reduce product weight Upper lid in the case of a closed type Buried earth

Claims (1)

[Claims] 1. A drainage pipe, a gutter, and a drainage channel (hereinafter referred to as drainage channel) made of concrete, calcined clay, synthetic resin, or the like, characterized in that the structure and shape thereof accelerate the drainage speed.