JPH0642019A - Drainage piping system - Google Patents

Abstract

PURPOSE:To draw waste water and drainage in waste pipes positioned behind those which are made to dangle by a method wherein the waste pipes are made to dangle by a specified length or more along the inside or outside of a waste stack and after that the waste pipes are opened to the inside of the waste stack. CONSTITUTION:In piping system of drain pipes, waste pipes 31, 35 and 36 in 15-40mm bore are made to dangle by 20cm or more along the inside and outside of a waste stack 4 and after that, the waste pipes are opened to the inside of the waste stack 4. Waste water running inside the waste pipes 31, 35 and 36 comes down along the waste stack 4 and flows into the waste stack 4. As the waste water comes down through the waste pipes 31, 35 and 36 under the state of full-pipe-flowing, the gravity of the said waste water draws succeeding water when flowing into the waste stack 4, and thereby the waste water and drainage in the waste pipes positioned danglingly behind the waste stack 4 are drawn and are let flow without stagnation even though the bores of the pipes are small.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to drainage piping systems. In particular, it relates to a drainage piping system suitable for drainage of sewage and the like.

[0002]

2. Description of the Related Art Conventionally, wastewater such as sewage is collected by connecting sewage discharged from a toilet bowl or miscellaneous wastewater discharged from a kitchen, washroom, bath, etc. directly or in a drainage box to a sewer main. Is. In order to allow drainage to flow down naturally, drainage pipes such as sewage must be piped with a pipe with a diameter of 30 mm or more always maintaining a gradient of 1/100 or more so that dirt and foreign substances do not get blocked in the middle of the drainage pipe. There is.

This will be described with reference to FIG.
Figure 4 shows an example of a conventional drainage piping system.
The drainage pipe is connected from a kitchen sink 101 to a vertical pipe 120 via a horizontal pipe 110, and the vertical pipe 120 is connected to a main sewer pipe. Also, the basin 102 is an equipment trap 133.
After passing through the horizontal pipe 111, the bath 103 is a trap 131
After passing through the horizontal pipe 111, the washing pan 104 is trap 1
Each of the horizontal pipes 111 is connected to the horizontal pipe 111 via 32, and the horizontal pipe 111 is connected to the vertical pipe 121. Further, the toilet 105 is directly connected to the vertical pipe 121 via the horizontal pipe 112. Then, the horizontal pipes 110, 111, 1
All 12 are piped so as to have a gradient of 1/100 or more.

[0004]

In the conventional drainage piping system, since a pipe body having a relatively large diameter of 30 to 100 mm is used, resources are wasted and it is expensive. Further, in an apartment house such as a condominium in order to pipe with a gradient of 1/100 or more, it is necessary to widen the piping space above and below the slab, and there is a problem that the construction is troublesome. In order to solve this problem, a pump system is installed in or near the drainage part to pump the drainage, and a pipe system with a small diameter of about 20 mm and no gradient is being studied. .

However, this method of using a pump requires energy in order to use power, that is, electricity, as well as measures against power failure and measures against failure of equipment such as pumps. There is a problem that it is difficult to apply to general houses and buildings. Therefore, an object of the present invention is to provide a drainage piping system which can pipe a pipe having a diameter of 40 mm or less, for example, 15 to 25 mm even if the gradient is 1/100 or less, and does not require power such as a pump. .

[0006]

The present invention has been made to solve the above problems and achieve the above objects.
In a piping system in which a drainage pipe is connected from a drainage part to a main pipe via a vertical pipe, the drainage pipe reaches the vertical pipe without branching from the drainage part, and the inside of the vertical pipe or the outside of the vertical pipe extends along the vertical pipe.
It hangs downward by 0 cm or more and is opened in the vertical pipe,
The height of this opening is 20 cm or more below the drainage part.

[0007] In the present invention, the drainage section means a place where a pipe body reaching a vertical pipe is finally opened in the air, and a kitchen kitchen stand, a wash basin, in which a toilet bowl such as sewage or miscellaneous waste water is drained, When a pipe is directly piped from a bath or the like, this toilet, kitchen stand, washbasin, bath, etc. is the drainage part, and once these dirty water and miscellaneous wastewater are poured into a drainage basin or collection tank, the vertical When connected to a pipe, this drainage basin or collection tank becomes the drainage part. Also, if there is a trap with air bleed in the middle, this trap becomes the drainage part.

As the drainage pipe used in the present invention, all pipes which have been conventionally used for piping can be used. For example, a steel pipe, an inner surface resin lining steel pipe, a cast iron pipe, a concrete pipe, a synthetic resin pipe, etc. can be used. Particularly, in the present invention, a flexible pipe such as a polyethylene pipe, a cross-linked polyethylene pipe, a polypropylene pipe, a polybutene pipe, a soft polyvinyl chloride pipe or a soft synthetic resin pipe or a composite pipe of polyethylene resin, metal foil and polyethylene resin. However, it is preferable because the piping work and the exchange of the pipe body can be easily performed.

The diameter of the pipe body may be appropriately selected according to the amount of drainage, but a diameter of 15 to 25 mm is optimal for a drainage pipe used in a normal household. The drainage pipe used in the present invention hangs inside the vertical pipe or outside the vertical pipe along the vertical pipe, and the hanging distance is 20 cm or more, preferably 20 cm to 3 m. Further, in the method of hanging the inside of the vertical pipe or the outside of the vertical pipe along the vertical pipe in this way, the drainage pipe may be hung down by 20 cm or more at the time of piping, or in advance,
A pipe joint in which a pipe is hung down by 20 cm or more from the pipe joint to the vertical pipe may be connected to the vertical pipe, and a drain pipe piped from the drainage section may be connected to this pipe joint.

[0010]

The drainage used in the drainage piping system of the present invention is usually discharged in a large amount at one time. Therefore, normally
The drainage pipe flows in a state where the inside of the pipe is full (a state where the entire cross section of the pipe body is filled). And in the drainage piping system of the present invention,
The drainage pipe hangs inside or outside the vertical pipe downward by 20 cm or more along the vertical pipe, and then opens into the vertical pipe, so sewage is drained along the vertical pipe with a height of 20 cm or more. It flows in full flow. Then, the water in the full flow state falls downward due to gravity, and due to the principle of siphon, the dirty water and drainage in the drain pipe before the hanging drain pipe are sucked.

As described above, in the drainage piping system of the present invention, since the head pressure is suctioned at 20 cm or more, the drainage pipe can be made small unlike the natural flow, and even if there is no gradient, for example, in the middle Even if there is some rising slope,
The drainage flows through the drainage pipe without any delay.
Therefore, the drainage in the drainage pipe can be flowed without using the power of the motor or the like.

According to the experiments conducted by the present inventor, it has been found that a head pressure of 20 cm or more is required in this drainage piping system in order to flow sewage and drainage due to the siphon principle. Therefore, when there is an ascending slope, it is necessary to hang it down along the vertical pipe so that the height of the opening of the drain pipe opening in the vertical pipe is below the drainage portion by 20 cm or more. Further, it has been found that the diameter of the drainage pipe is 15 to 25 mm for a normal household.

[0013]

EXAMPLES Next, examples of the present invention will be described. FIG. 1 is an explanatory view showing the drainage piping system of the present invention. FIG. 2 shows another embodiment of the present invention and is an explanatory view showing a connecting portion between a drainage pipe and a vertical pipe. FIG. 3 shows another embodiment of the present invention and is an explanatory view showing a connecting portion between a drainage pipe and a vertical pipe.

In FIG. 1, 11 is a kitchen sink, 12 is a washbasin, 13 is a bath, 14 is a wash pan, and 15 is a toilet bowl. Reference numeral 2 denotes a water collecting tank, and the water collecting tank 2 is provided with an air vent (not shown). 4 is 100
It is a vertical pipe made of a rigid polyvinyl chloride lining steel pipe of mm. Reference numeral 5 is a connection portion provided in the middle portion of the vertical pipe 4, and a special pipe joint is used.

Numeral 31 indicates a kitchen sink 11 through an appliance trap 5
20m diameter piped to the connecting part 5 of the vertical pipe 4 via 1
It is a drainage pipe consisting of m polyethylene pipe. As the trap 51, a bowl trap having a large leg cross-sectional area ratio is used. Reference numeral 32 denotes a drain pipe made of a polyethylene pipe having a diameter of 20 mm, which is piped from the washbasin 12 to the water collection tank 2 through the P-shaped trap 52.

Reference numeral 33 is a drainage pipe made of a polyethylene pipe having a diameter of 20 mm, which is piped from the bath 13 through the trap 53 to the water collection tank 2. The reference numeral 34 designates a caliber 2 which is piped from the washing pan 14 through the trap 54 to the water collecting tank 2.
It is a drainage pipe consisting of a 0 mm polyethylene pipe.

Reference numeral 35 is a drain pipe made of a polyethylene pipe having a diameter of 25 mm, which is piped from the toilet bowl 15 to the connecting portion 5 of the vertical pipe 4. 36 is a connecting portion 5 between the water collecting tank 2 and the vertical pipe 4.
It is a drainage pipe made of a polyethylene pipe having a diameter of 20 mm, which is piped in. Therefore, in this embodiment, the kitchen sink 11, the water collecting tank 2, and the toilet bowl 15 serve as the drainage section.

As the trap used in the drainage piping system, a water-sealed trap of 25 mm to 50 mm is usually used. However, the trap used in the present invention can be used even after the drainage from the device is completed. Air is sucked in until the drainage in the pipe from the drainage section to the vertical pipe is replaced with air, and since the negative pressure in the pipe is large, traps with high sealing strength (traps with a large leg cross-sectional area ratio, bottle traps, etc.) It is desirable to use.

The drain pipes 31, 35 and 36 do not necessarily have to have a downward slope (for example, 1/50 to 1/100), and may be horizontally piped, or may have some irregularities. You may pipe to. Also, drain pipes 31, 35, 36
20 cm or more of the pipe end of the vertical pipe 4 is inserted from the connection part 5 so that the height of the opening of the drainage pipe is 20 cm or more below the connection part 5, and the sink 11 of the kitchen, the toilet bowl 15, the water collection tank The drainage pipes 31, 35, 36 are fixed so that the pipe wall of the drainage pipes 31, 35, 36 and the vertical pipe 4 are water-tight at this connecting portion 5 so as to be 20 cm or more below 2. There is.

Next, a method of using this drainage piping system will be described. Normal drainage pipes 31, 35, 36 when appliances such as the kitchen sink 11 are not used are such that some drainage remains in the part of the pipe where the gradient is reversed, and the rest are filled with air. Has become. Next, the kitchen sink 1
1. When using equipment such as 1, washbasin 12, bath 13, washing pan 14, toilet bowl 15, the drainage pipes 31, 32, 33, 34, 35 connected to the equipment being used are fully drained. It flows.

The drainage flowing through the drainage pipes 32, 33 and 34 is temporarily collected in the water collecting tank 2 and from there, the drainage pipe 36.
Flowing through. Then, the drainage flowing in the drain pipes 31, 35, 36 hangs down in the vertical pipe 4 and then flows into the vertical pipe 4. In this way, when the drainage comes to hang down in the vertical pipe 4 in a state where the drainage pipes 31, 35 and 36 are fully flowed, the drainage pipe 3
The gravity of the drainage in 1, 35, 36 flows while drawing in the water in front of it, so that the flow rapidly increases and flows into the vertical pipe 4.

In this way, since the drainage in the drainage pipes 31, 35, 36 is pulled and flows, the drainage pipes 31, 3
Even if there is some unevenness in 5, 36, it will flow, and even if the pipe diameter is smaller than the conventional one, it will flow without clogging on the way. When the use of the device is stopped, the air flows while sucking air from the drainage portion, and when the drainage in the drainage pipes 31, 35, 36 is exhausted, it stops.

Next, the embodiment shown in FIG. 2 will be described. In the embodiment shown in FIG. 2, the vertical tube 4a has a width of 20 cm in advance.
The pipe joint 5a, to which the above-mentioned hanging auxiliary pipe 6 is attached, is connected to the vertical pipe 4a, and the drain pipes 31a, 35a, 36a piped from equipment such as a kitchen sink are connected to the pipe joint 5a. The difference from the embodiment shown in FIG. Others are the same as the embodiment shown in FIG.

Next, the embodiment shown in FIG. 3 will be described. In the embodiment shown in FIG. 3, the drain pipes 31b, 35b, 3
It differs from the embodiment shown in FIG. 1 in that 6b is connected to the pipe joint 5b after the outside of the vertical pipe 4b is hung down along the vertical pipe 4b by 20 cm or more. Others are the same as the embodiment shown in FIG.

[0025]

According to the drainage pipe system of the present invention, the drainage pipe reaches the vertical pipe without branching from the drainage part, is hung down by 20 cm or more along the vertical pipe, and the height of the opening of the drainage pipe is high. Is 20 cm or more below the drainage part, so when drainage flows through this drainage pipe, it flows while being sucked by the siphon principle. Therefore, unlike the prior art, it is not necessary to keep piping with a gradient of 1/100 or more, and it is not necessary to use a tubular body having a relatively large diameter of 30 to 100 mm.

As described above, since the tubular body having the diameter of 30 to 100 mm is not used, the cost is lower than the conventional one. Also, the slope is 1 /
Since it is not necessary to make piping to 100 or more, it is not necessary to widen the piping space under the slab above and below the slab in an apartment house or the like, and the construction is simple.

Furthermore, since no pump or the like is used, energy is saved, and there is no need to take measures against breakdown, power failure, etc. Further, when a flexible pipe is used, piping work and pipe replacement can be easily performed. As described above, the drainage piping system of the present invention has various effects and is a valuable invention.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention and is an explanatory view of a drainage piping system.

FIG. 2 shows another embodiment of the present invention and is an explanatory view showing a connecting portion between a drainage pipe and a vertical pipe.

FIG. 3 shows another embodiment of the present invention and is an explanatory view showing a connecting portion between a drainage pipe and a vertical pipe.

FIG. 4 is an explanatory diagram of a conventional drainage piping system.

[Explanation of symbols]

11 Kitchen sink 15 Toilet bowl 2 Water collection tank The above is the water collection section 12 Washbasin 13 Bath 14 Washing pan 31, 31a, 31b, 32, 33, 34, 35, 35
a, 35b 36, 36a, 36b Drain pipe 4, 4a, 4b Vertical pipe 5, 5a, 5b Connection part 51, 52, 53, 54 Trap 6 Auxiliary pipe

Claims (2)

[Claims] 1. In a drainage piping system in which a drainage pipe is connected from a drainage part to a main pipe through a vertical pipe, the drainage pipe reaches the vertical pipe without branching from the drainage part, and It hangs down more than 20 cm along the vertical pipe and opens in the vertical pipe, and the height of this opening is 20c from the drainage part.
A drainage piping system characterized by being placed below m. 2. The drainage piping system according to claim 1, wherein a drainage pipe of 15 to 40 mm is used.