JP2008280784A - Drainage system and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a draining method and a drain horizontal pipe in which the restriction of a kitchen layout is minimized, and the clogging of a pipe is hardly caused. <P>SOLUTION: The system for discharging living drain water generated in a building having a disposer 16 provided in a kitchen to a drain vertical pipe through a drain horizontal pipe comprises a first drain horizontal pipe 11 for discharging drain water generated in the kitchen to a kitchen drain vertical pipe 100 by siphon draining, and second drain horizontal pipes 21 and 31 for discharging drain water generated out of the kitchen to a general drain vertical pipe 110 by gravitational draining. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a drainage system and method used in a building having a plurality of floors.

  Among apartments sold in recent years, SI (Skeleton Infill) houses with a high degree of freedom in partitioning have become the mainstream in high-rise buildings. In addition, it is common to install a disposer (garbage crusher) in the kitchen of each dwelling unit. In this case, the wastewater from the kitchen is drained by a horizontal drainage pipe and a drainage pipe for the kitchen. Drainage from other than the kitchen is drained by a horizontal drainage pipe and drainage stack for draining from outside the kitchen. The horizontal drain pipe is generally provided inside the double floor and drained by gravity drainage.

  However, in the horizontal drainage pipe using gravity drainage that has been generally used in the past, the arrangement of the kitchen is restricted by the position of the drainage stack and the length of the drainage horizontal pipe even in an SI house. There was a problem. In other words, gravity drainage requires a height difference to ensure a sufficient gradient (generally 1/50 to 1/75), but the general floor height is limited by the double floor height (general From about 300 mm), the length of the drainage horizontal pipe is also limited (generally about 10 m). That is, the arrangement of the kitchen is restricted to a predetermined range (within about 7 m) from the position of the drainage stack.

  In addition, in the kitchen drain pipe, there is a problem that the crushed garbage generated by using the disposer adheres as a scale in the drain pipe and the drain pipe is easily clogged. For this reason, it is necessary to clean the inside of the drain pipe regularly (about once a year), which requires maintenance work and costs.

On the other hand, Patent Document 1 discloses siphon drainage that drains with a small diameter using a siphon phenomenon. In the initial stage of drainage, the drainage is performed by gravity drainage, and when the drainage horizontal pipe becomes full and siphon phenomenon occurs, the drainage is drained all at once. However, it is difficult to drain a large amount of drainage by gravity drainage at the initial stage of drainage with a small-diameter pipe for appliances having a low drainage outlet, such as bathroom washroom and toilet drainage. Therefore, siphon drainage has not been generally used.
JP 2006-241707 A

  An object of this invention is to provide the drainage system and method with few restrictions of arrangement | positioning of a kitchen with respect to such a subject, and it is hard to clog piping.

1st invention is the system which drains the domestic wastewater which arises in the building where the disposer was provided in the kitchen to the drainage stack through the drainage horizontal drawpipe,
A first drainage horizontal pipe that drains the wastewater generated in the kitchen to a kitchen drainage stack by siphon drainage;
A second drainage horizontal pipe that drains wastewater generated outside the kitchen to a drainage stack different from the drainage stack for kitchen drainage by gravity drainage;
A drainage system characterized by comprising:

A second invention is the drainage system according to the first invention,
The first drainage horizontal pipe is a flexible pipe, and is a drainage system.

A third invention is the drainage system according to the first or second invention,
The diameter of the first drainage horizontal pipe is 15 mm or more and 25 mm or less.

A fourth invention is the drainage system according to any one of the first to third inventions,
It is a drainage system characterized by connecting a plurality of said 1st drainage horizontal pipes provided in the same floor to the same kitchen drainage drainage stack.

A fifth invention is the drainage system according to any one of the first to fourth inventions,
The building is a drainage system characterized by being a housing complex.

  ADVANTAGE OF THE INVENTION According to this invention, the drainage system and method which have few restrictions of arrangement | positioning of a kitchen and are hard to clog piping can be provided.

  Although the present invention can be used for a building having a plurality of floors, in the following examples, an embodiment in which the present invention is applied to an apartment will be described.

  FIG. 1 is a diagram illustrating a floor plan of a dwelling unit according to the present embodiment. As shown in the figure, in this dwelling unit, a watering device is installed in a kitchen 10, a bathroom 20, and a toilet 30. Moreover, FIG. 2 is a figure which shows the cross section of the dwelling unit which is one Embodiment of this invention.

  The kitchen 10 is provided with a disposer 16 for crushing garbage. Kitchen wastewater generated in the kitchen 10 is drained to a kitchen drainage standpipe 100 provided outside the dwelling unit via a kitchen drainage horizontal pipe 11 (“first drainage horizontal pipe” in the claims). .

  The kitchen drainage horizontal draw pipe 11 is a drainage horizontal draw pipe having a smaller diameter than a drainage horizontal draw pipe that has been generally used in the past in order to achieve full drainage. The aperture is 25 mm. The kitchen drainage horizontal pipe 11 may be a straight pipe or a flexible pipe. Further, the horizontal section 12 of the kitchen drainage horizontal pipe 11 is a double-floor internal space (generally, a living room portion) composed of an interior floor 41 (flooring, etc.) of a house and a concrete floor 42 which is a building frame. It is not necessary to provide a gradient down toward the kitchen drainage standpipe 100 for performing siphon drainage as will be described later.

  The kitchen drainage standpipe 100 is a drainage standpipe that collects kitchen drainage from each floor. When the disposer 16 is used, the kitchen wastewater is a mixture of finely pulverized garbage mixed with water, and the degree of organic contamination is generally extremely high. Therefore, in view of the processing capacity of sewage treatment plants, many local governments say that this wastewater must not be discharged into public sewer pipes unless it is once treated in a septic tank installed in an apartment house. Yes. Therefore, the kitchen wastewater is collected by the kitchen drainage drainage stand 100 separately from the drainage standpipe for collecting other domestic wastewater.

  The kitchen drainage horizontal pipe 11 led from the kitchen 10 has a predetermined drop (for example, 2 m) downward from a rising section 13 that rises by a predetermined height in the vicinity of the kitchen drainage vertical pipe 100 inside the double floor. It is connected to the kitchen drainage standpipe 100 at a connection point 15 through a head section 14 that falls in the vertical direction. The rising section 13 and the head section 14 can generate a siphon phenomenon in the kitchen drainage horizontal pipe 11.

  The bathroom drainage generated in the bathroom 20 passes through a bathroom drainage horizontal pipe 21 (“second drainage horizontal pipe” in the claims) and a general drainage stack 110 (“kitchen drainage” in the claims). The wastewater is drained into a different drainage standpipe)). Further, the bathroom wash drainage generated in the bathroom wash basin 22 is drained to the general drainage standpipe 110 through the bathroom wash drainage horizontal draw pipe 23 (“second drainage horizontal draw pipe” in the claims). .

  The bathroom drainage horizontal draw pipe 21 and the bathroom flush drainage horizontal draw pipe 23 are drainage horizontal draw pipes that have been generally used conventionally, and are straight pipes having a diameter of, for example, about 65 mm. The bathroom drainage horizontal pipe 21 is provided with a predetermined downward slope (for example, 1/50 to / 75) toward the general drainage stack 110 in order to drain by half-flow gravity drainage.

  Toilet drainage generated in the toilet 30 is drained to a general drainage stack 110 through a toilet drainage horizontal pipe 31 (“second drainage horizontal pipe” in the claims). Further, the toilet wash drainage generated in the toilet washstand 32 is drained to the general drainage standpipe 110 through the toilet wash drainage horizontal draw pipe 33 (“second drain horizontal draw pipe” in the claims). .

  The toilet drainage horizontal draw pipe 31 and the toilet flush drainage horizontal draw pipe 33 are also drainage horizontal draw pipes that have been generally used in the same manner as the bathroom drainage horizontal draw pipe 21 and the bathroom wash drainage horizontal draw pipe 23, A predetermined downward slope is provided.

Next, how kitchen drainage, bathroom drainage, and toilet drainage are drained in the drainage horizontal pipes 1, 21, and 31 will be described.
From the kitchen 10, kitchen wastewater mixed with garbage and water crushed by the disposer 16 flows into the horizontal section 12 of the kitchen drainage horizontal pipe 11. The kitchen drainage horizontal draw pipe 11 which is a small-diameter pipe becomes full and flows slowly toward the connection point 15 by the water flow generated by the level difference between the kitchen 10 and the horizontal section 12. When the kitchen drainage reaches the head section 14 beyond the rising section 13, a siphon phenomenon occurs due to the weight of the kitchen drainage in the head section 14, and the kitchen drainage rapidly increases to the kitchen drainage standpipe 100 at an increased flow rate. Drained. And once a siphon phenomenon arises, the siphon drainage by this siphon phenomenon will continue until all the kitchen drainage in the kitchen drainage horizontal drawing pipe 11 is discharged | emitted.

  The bathroom drainage of the bathroom 20 flows into the bathroom drainage horizontal pipe 21 and is drained to the second vertical pipe 110 by gravity drainage due to the gradient. Similarly, the toilet drainage of the toilet 30 flows into the toilet drainage horizontal draw pipe 31 and is drained to the second vertical pipe 110 by gravity drainage due to the gradient.

  As described above, the kitchen drainage horizontal pipe 11 of the drainage system 1 may be non-gradient because it uses the siphon phenomenon, and the drainage horizontal pipe of the drainage horizontal pipe due to the restriction of the double floor height for securing the conventional gradient is used. The length restriction (previously about 10 m or less) can be eliminated by using siphon drainage, and the degree of freedom in the arrangement of the kitchen can be increased. Therefore, even in SI houses that feature free floor plans, there has been a restriction on the arrangement of the kitchen due to the length of the drainage horizontal pipes in the past, but by applying the drainage system 1 to the SI house, the arrangement of the kitchen Can also increase the degree of freedom. Thereby, for example, a kitchen beside a veranda which is a popular floor plan is also possible.

  In this embodiment, kitchen wastewater is a mixture of garbage and water crushed by the disposer 16 and contains a large amount of fiber and oil that cause scale adhesion. By quickly draining the horizontal draw pipe 11 using the siphon phenomenon, it is possible to prevent the scale from adhering to the inside of the pipe. In addition, the scale easily adheres to the vicinity of the water surface in the drain pipe, but the kitchen drainage horizontal drawing pipe 11 has a small diameter, so it becomes full drainage, and the scale is difficult to adhere in the pipe. Therefore, the regular pipe cleaning that has been necessary up to now is not required, or the frequency thereof can be suppressed.

  On the other hand, bathroom drainage and toilet drainage generate a large amount of drainage instantaneously due to their usage characteristics, and can be reliably drained by the half-full gravity drainage that has been used conventionally.

  Further, if the drainage system 1 is used, there is no restriction on the length of the kitchen drainage horizontal pipe, so that several dwelling units on the same floor can share one kitchen drainage standpipe. That is, the space where the kitchen drainage standpipe has been disposed can be omitted, and this space can be used as a residential space. That is, according to the drainage system 1, since the occupation area which can be sold can be increased, the developer can improve the business profit.

According to the drainage system 1, since the gradient is unnecessary for the kitchen drainage horizontal pipe 11, it can be easily installed without considering the gradient. Moreover, since a flexible pipe | tube can be used for the kitchen drainage horizontal drawing pipe | tube 11, construction is simple. Furthermore, since the kitchen drainage horizontal pipe 11 is a non-gradient and small-diameter flexible pipe, it can be easily crossed with the bathroom drainage horizontal pipe 21 and the toilet drainage horizontal pipe 31 that use gravity drainage. .

  In addition, since a non-gradient flexible pipe is used for the kitchen drainage horizontal pipe 11, a simple connection is possible without using a costly collective joint at the connection portion with the kitchen drainage vertical pipe 100.

  In addition, the description of the above embodiment is for making an understanding of this invention easy, and does not limit this invention. Although the present invention has been described based on an example in which the present invention is used in an apartment house, the present invention can also be used in a building having a kitchen such as a hotel or an office building as in the present embodiment. It goes without saying that the present invention can be changed and improved without departing from the gist thereof, and that the present invention includes equivalents thereof.

It is a design drawing which shows the floor plan of the dwelling unit which is one Embodiment of this invention. It is a design figure showing the section of the perpendicular direction of the dwelling unit which is one embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drainage system 10 Kitchen 11 Kitchen drainage horizontal pipe 12 Horizontal section 13 Rising section 14 Head section 15 Connection point 16 Disposer 20 Bathroom 21 Bathroom drain horizontal pipe 22 Bathroom washstand 23 Bathroom wash drain horizontal pipe 30 Toilet 31 Horizontal toilet drain Pull pipe 32 Toilet sink 33 Toilet wash drain horizontal pipe 41 Interior floor 42 Concrete floor 100 Kitchen drain stand 110 General drain stand

Claims (6)

It is a system that drains domestic wastewater generated in a building with a disposer in the kitchen into a drainage stack through a drainage horizontal drawpipe,
A first drainage horizontal pipe that drains the wastewater generated in the kitchen to a kitchen drainage stack by siphon drainage;
A second horizontal drainage pipe that drains wastewater generated outside the kitchen to a drainage stack different from the kitchen drainage stack by gravity drainage,
A drainage system characterized by comprising: The drainage system according to claim 1,
The drainage system, wherein the first drainage horizontal draw pipe is a flexible pipe. The drainage system according to claim 1 or 2,
The drainage system according to claim 1, wherein a diameter of the first drainage horizontal pipe is 15 mm or more and 25 mm or less. The drainage system according to any one of claims 1 to 3,
A drainage system, wherein a plurality of the first drainage horizontal pipes provided on the same floor are connected to the same drainage stack for kitchen drainage. A drainage system according to any one of claims 1 to 4,
The said building is a collective housing, The drainage system characterized by the above-mentioned. A method of draining domestic wastewater generated in a building with a disposer in a kitchen to a drainage stack through a horizontal drainage pipe,
Drain the wastewater generated in the kitchen to the kitchen drainage stack by the first drainage horizontal pipe using siphon drainage,
A drainage method characterized in that drainage generated outside the kitchen is drained into a drainage stack different from the drainage stack for kitchen drainage by a second drainage horizontal draw pipe using gravity drainage.

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