JP2016151099A - Drainage system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drainage system allowing drain water to converge while restricting the energy reduction of drain water in a horizontal drain pipe.SOLUTION: The drainage system is a drain system 100 disposed at an inclination of 1/5 or less, including a horizontal drain pipe 110 and a rectification part 121 which rectifies the drain water flow. The rectification part 121 is formed at the inside adjacent to the bent joint 140 to be connected to the drain pipe 100.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a drainage system.

  Conventionally, for example, a drainage system is installed in a house such as a detached house or an apartment house. Such a drainage system includes, for example, a drainage pipe such as a toilet pipe connected to a discharge port of a drainage device such as a toilet, a drainage pipe connected to another drainage device, and the like.

In recent years, there has been a problem that due to energy saving movements such as water saving in toilets, the amount of water for transporting filth decreases, filth remains in the pipe, and the pipe is blocked.

  For example, Patent Document 1 (Japanese Patent Laid-Open No. 2013-204363) mainly describes a high-performance drainage system that can be installed in a narrower space and can obtain higher drainage performance (conveyance performance). A drainage system to be obtained is disclosed.

  The drainage system described in Patent Document 1 (Japanese Patent Application Laid-Open No. 2013-204363) is blocked by partially draining the interior between the drainage device and the drainage basin or drainage vertical pipe. A drainage pipe provided with a blocking prevention mechanism capable of preventing the occurrence of negative pressure upstream from the portion is connected.

JP 2013-204363 A

  According to said patent document 1, it discloses about the improvement of the conveyance property of waste_water | drain. However, the drainage horizontal pipe arranged with a gradient of 1/5 or less has not been clarified as a method for improving the transportability.

  The objective of this invention is providing the drainage system which can concentrate waste_water | drain, suppressing the energy fall of the waste_water | drain in a drainage horizontal pipe.

(1)
A drainage system according to one aspect is a drainage system arranged with a gradient of 1/5 or less, and includes a drainage horizontal pipe and a rectifying unit that regulates the flow of drainage in the pipe of the drainage horizontal pipe.

In this case, since the drainage system includes the drainage horizontal pipe and the rectifying unit that regulates the flow of drainage inside the drainage horizontal pipe, it is possible to prevent the energy of the drainage flowing through the drainage horizontal pipe from being lowered.
Note that the gradient of 1/5 means that the distance H in the vertical direction with respect to the predetermined distance L on the horizontal plane is 1/5. That is, when the distance L is 1000 mm, the distance H is 200 mm. In other words, the gradient is 20% or less in terms of a display method such as road railway.

(2)
The drainage system according to a second aspect of the present invention is the drainage system according to one aspect, wherein the rectifying unit has a spiral spring extending so as to constitute at least a part of the spiral along the inner wall of the drainage horizontal pipe. Good.

  In this case, since the rectifying unit has a spiral spring, the drainage can be reliably guided.

(3)
A drainage system according to a third aspect of the present invention is the drainage system according to one aspect or the second aspect of the present invention, wherein the rectifying unit is on the inner side of the drainage horizontal pipe on the side connecting the joint having the bent portion connected to the drainage horizontal pipe. It may be provided.

  In this case, since it is provided inside the drainage horizontal pipe on the side where the joint having the bent portion is connected, the drainage can be smoothly supplied to the joint.

(4)
A drainage system according to a fourth aspect of the present invention is the drainage system according to the third aspect of the present invention from one aspect, wherein the rectification unit may guide the drainage to a side where the bending radius of the joint is large.

  In this case, since the rectifying unit can guide the drainage to the side where the bending radius of the joint is large, the drainage is smoothly supplied to the peripheral surface of the joint having a large bending radius without causing the drainage to collide with the joint. be able to. As a result, it is possible to prevent the drainage energy from being lowered.

It is a schematic diagram which shows the drainage system in a toilet. It is a schematic diagram which shows the see-through | perspective from the upper direction of the drainage system in a toilet. It is a typical sectional view showing an example of a drainage system. It is a typical perspective view for demonstrating the structure of a drainage system. It is a schematic diagram for demonstrating the effect of the drainage system which concerns on this invention. It is a schematic diagram for demonstrating the effect of the conventional drainage horizontal pipe. It is a typical structure figure showing other examples of the structure of a drainage system. It is a figure which shows the result of an Example and a comparative example.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

<Overview>

FIG. 1 and FIG. 2 are schematic diagrams when the drainage system 100 according to the present embodiment is applied to a toilet of a detached house.
FIG. 1 is a schematic diagram showing a drainage system 100 in a toilet, and FIG. 2 is a schematic diagram showing a perspective view of the drainage system 100 in the toilet from above.

  1 and 2 includes a bending joint 130 from the toilet 300, a drainage system 100, a bending joint 140, and a drainage horizontal pipe 150.

One end side of the drainage system 100 is connected to the bending joint 130, and the other end side of the drainage system 100 is connected to the bending joint 140. A drainage horizontal pipe 150 is disposed on the downstream side of the bending joint 140.
In the present embodiment, the drainage system 100 will be described. The drainage system 100 is arranged with a gradient of 1/5 or less.

<Structure of drainage system>
3 is a schematic cross-sectional view showing an example of the drainage system 100, and FIG. 4 is a schematic perspective view for explaining the structure of the drainage system 100. As shown in FIG.

As shown in FIGS. 3 and 4, the drainage system 100 includes a drainage horizontal pipe 110 made of a pipe member having a cylindrical longitudinal direction, and a rectifying unit 121. That is, as shown in FIGS. 3 and 4, the drainage system 100 is provided with a rectification unit 121 inside the pipe near the end of the drainage horizontal pipe 110.
The rectification unit 121 has a function of guiding the drainage flowing through the drainage horizontal pipe 110 to flow spirally. In the present embodiment, the rectifying unit 121 is formed of a spiral spring. Moreover, it is preferable that the length around 1 pitch (circulation) of the spiral of a spiral spring is 1/200 or more of a pipe diameter. When the pitch is less than 1/200 of the pipe diameter, the energy loss of the drainage increases when the drainage contacts the spiral spring.
Furthermore, the height of the spiral spring is preferably in the range of 1/200 to 3/4 of the tube diameter. If the height of the spiral spring is less than 1/200 of the pipe diameter, the rectification of the drainage will be reduced. If the height of the spiral spring is more than 3/4 of the pipe diameter, the pipe will be temporarily removed when the drainage passes. Clogged and sealed water is broken.

<Structure of rectifying unit 121>
For example, as shown in the AA cross section, the BB cross section, and the CC cross section of the spiral spring of FIG. 3, the spiral spring has a predetermined torsion angle, but further, an upstream portion (CC cross section). ) Is formed to be twisted inward from the twist angle, and the downstream side (cross section AA) is preferably formed to be twisted further outward from the twist angle.
More drainage can be rectified by the twist on the upstream side, and the rectification direction of the drainage can be transported without being disturbed by the twist of the downstream part.

Further, the spiral spring in the BB cross section may be formed so as to have a larger amount of protrusion than the spiral spring in the AA cross section and the CC cross section.
Further, it is desirable that the extension line of the spiral pitch hits the peripheral surface of the joint. By hitting the peripheral surface, it is possible to reduce energy loss when drainage collides with the joint.

The helical spring is preferably formed from the start point to the end point through the lowest point of the tube.
The starting point or end point of the spiral spring at this time may be the lowest point.
By having the spiral spring at the lowest point, the effect of rectifying the drainage can be enhanced. In addition, although it is desirable that the spiral spring always exists at the lowest point, the spiral spring may not exist at the lowest point.

<Flow effect of drainage system 100>
FIG. 5 is a schematic diagram for explaining the effect of the drainage system 100 according to the present invention, and FIG. 6 is a schematic diagram for explaining the effect of the conventional drainage horizontal pipe 900.

  As shown in FIG. 6, the liquid FL <b> 1 flowing through the conventional drainage horizontal pipe 900 collides with the peripheral surface of the bending joint 140. As a result, the flow velocity energy of the liquid FL1 is reduced due to the turbulent flow caused by the collision.

  On the other hand, as shown in FIG. 5, the liquid FL flowing through the drainage system 100 is guided spirally in the rectifying unit 121, and the spiral drainage flows smoothly along the peripheral surface of the bending joint 140. As a result, the flow velocity energy of the liquid FL does not collide with the peripheral surface (the side with the larger bending radius) of the bending joint 140 and can be prevented from decreasing.

<Other examples>
FIG. 7 is a schematic structural diagram showing another example of the structure of the drainage system 100.

As shown in FIG. 7, the drainage system 100a includes a drainage horizontal pipe 110a and a piping member 122a.
The drainage horizontal pipe 110a is formed with three projections 115a at the end. The piping member 122a mainly includes a member having the same diameter as the drainage horizontal pipe 110a and a rectifying unit 121a. The pipe member 122a is formed with three recesses 125a that can be fitted to the protrusions 115a.

  Further, as shown in FIG. 7, a pipe having the same shape as the drainage system 100 shown in FIG. 3 can be obtained by fitting the drainage horizontal pipe 110 a and the piping member 122 a with the projection 115 a and the recess 125 a. .

  In this embodiment, the drainage system 100a is composed of the drainage horizontal pipe 110a and the piping member 122a. However, the present invention is not limited to this, and a locking portion is formed on the inner diameter of the drainage horizontal pipe 110a. It is good also as a structure which fixes the rectification part 121a to the said latching | locking part.

<Example>
Subsequently, the drainage system 100 according to the present invention and the conventional drainage horizontal pipe 900 were tested. FIG. 8 is a diagram showing the results of Examples and Comparative Examples.

Example 1
In Example 1, the drainage system 100 of FIG. 5 was used. A drainage horizontal pipe 110 with a gradient 1/50 and a rectifying section 121 and a bending joint 140 were connected to each other. The bending joint 140 is provided downstream of the drainage system 100.

  Specifically, an Slon Clear VP pipe and an Slon DV joint (elbow) of Sekisui Chemical Co., Ltd. were used.

2 liters of water was poured into the long elbow of the drainage system 100, and the distance and water flow of the drained water were measured.
The flight distance was determined by measuring the distance until the pipe end was 0 and the bottom of the drainage horizontal pipe 110 reached 25 cm.

  Moreover, the water force measured the time when a conveyance distance fell to 10 cm, and measured the reciprocal number as a water force.

(Comparative Example 1)
In Comparative Example 1, a conventional drainage horizontal pipe 900 was used. That is, the drainage horizontal pipe 900 without the rectifying unit 121 was used.
The others were tested under the same conditions as in Example 1.

(Comparative Example 2)
In Comparative Example 2, the rectifying unit 121 in Example 1 was provided inside the pipe opposite to the bending joint 140.
The others were tested under the same conditions as in Example 1.

In Example 1, the transport distance was 39 cm, the transport residence 10 cm arrival time (sec) was 2.97, and the water force (1 / sec) was 0.32.
In Comparative Example 1, the transport distance was 29 cm, the transport residence 10 cm arrival time (sec) was 3.08, and the water force (1 / sec) was 0.34.
In Comparative Example 2, the transport distance was 26 cm, the transport residence 10 cm arrival time (sec) was 3.26, and the water force (1 / sec) was 0.31.

As a result of comparing Example 1 and Comparative Example 1, it was confirmed that in Example 1, the transportability was improved by 30%. This is an effect of the drainage system 100 of the drainage horizontal pipe 110 having the rectifying unit 121.
Moreover, as a result of comparing Example 1 and Comparative Example 2, it was confirmed that the transportability was lowered depending on the installation location of the rectifying unit 121.

  Since the drainage system 100 according to the present invention includes the rectifying unit 121, it is possible to prevent the energy of the drainage flowing through the drainage system 100 from being reduced. As a result, high conveyance performance can be obtained in a space-saving manner.

  Moreover, since the rectification | straightening part 121 consists of a spiral spring and can guide a waste_water | drain to the side (outside of an internal peripheral surface) with a large bending radius of the bending joint 140, a bending joint is made without colliding a waste_water | drain to the joint 140. The drainage can be smoothly supplied to the peripheral surface of the joint having a large bending radius of 140. As a result, it is possible to prevent the drainage energy from being lowered.

  The drainage system 100 can be used as long as it is a drainage system (drainage horizontal pipe) on the upstream side of the joint having a bent portion. The drainage system 100 is not limited to a toilet, but includes a wash basin, a bathtub, a kitchen, a washing machine, and the like. The present invention can be applied to a detached house, a condominium, an apartment, an apartment house, a factory, a company building, or any other drainage system.

  In the present invention, the drainage systems 100 and 100a correspond to the “drainage system”, the drainage horizontal pipes 110 and 110a correspond to the “drainage horizontal pipe”, and the rectifying parts 121 and 121a are the “rectifying part, spiral spring”. The bending joint 140 corresponds to “a joint having a bent portion”.

  A preferred embodiment of the present invention is as described above, but the present invention is not limited thereto. It will be understood that various other embodiments may be made without departing from the spirit and scope of the invention. Furthermore, in this embodiment, although the effect | action and effect by the structure of this invention are described, these effect | actions and effects are examples and do not limit this invention.

100, 100a Drainage system 110, 110a Drainage horizontal pipe 121, 121a Rectifier 140 Bend joint

Claims (4)

A drainage system with a slope of 1/5 or less,
Drainage horizontal pipe,
A drainage system including a rectification unit that regulates the flow of drainage inside the drainage horizontal pipe.   The drainage system according to claim 1, wherein the rectifying unit includes a spiral spring extending so as to constitute at least a part of a spiral along an inner wall of the drainage horizontal pipe.   The drainage system according to claim 1 or 2, wherein the rectifying unit is provided on an inner side of the drainage horizontal pipe on a side to which a joint having a bent portion connected to the drainage horizontal pipe is connected.   The drainage system according to any one of claims 1 to 3, wherein the rectifying unit guides drainage to a side where the bending radius of the joint is large.

Images