JP2008063763A - Siphon-type reform drainage system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reform drainage system which is suitable for the reform of an existing building, which adapts to the arrangement change, addition and upsizing of water section equipment, and which is best suited to the reform of an apartment house. <P>SOLUTION: This siphon-type reform drainage system for use in the reform of the apartment house comprises: a step of installing a double floor on a slab; a step of newly installing a drain standpipe in a common use section; a step of connecting a siphon drain pipe to the new water section equipment; a step of laying the siphon drain pipe with no inclination on the slab; and a step of merging a leading end of the siphon drain pipe into the drain standpipe with a difference between water heads. In Fig., the pieces of newly installed water section equipment are numbered 11a, 11b and 11c, respectively; the newly installed drain standpipe is numbered 12; a newly installed chamber is numbered 13; the newly installed siphon drain pipe is numbered 14; a newly installed vent pipe is numbered 15; and represents a pipe shaft space PS. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  In recent years, the renovation of existing apartment houses has been widely carried out, and of course, there are problems with rooms and partitions, but with this, it is necessary to solve the watering relationship. That is, not only the replacement of the watering device but also the enlargement of the watering device itself is required. Furthermore, it is often required to greatly change the installation position of the watering device from the existing position, and development of a construction method corresponding to this is required.

  However, the problem of drainage from watering equipment is the biggest bottleneck in the renovation of apartment houses. That is, as far as the drain pipe is concerned, there was no good reform construction method due to the problem of drainage gradient, pipe diameter, and slab step. Therefore, even if it is called a reform, it is quite difficult to significantly change the arrangement of the watering equipment, and the drainage pipe is generally renewed from the viewpoint of cost. Even in such a water pipe, it is often difficult to make a drainage system corresponding to the increase in the size of watering equipment.

  In addition, in existing properties, there are places where the pipe diameter is thin among the various pipes to be laid, but there are many harmful effects due to this. On the lower floor, there was a phenomenon that the trap part was smashed or a blowout occurred. In order to improve this, it is necessary to increase the diameter of the drainage stack. However, there is a problem in this case as well, because the sleeve where the drainage stack is installed is small and the pipe shaft space is small. Since (PS) itself is small, it is a problem that a drainage stand having a large diameter cannot be laid.

  In addition, when installing a new device by reform, the new device can only be placed at the slab step where the watering device was installed, so the installation area is limited. In fact, it was actually possible to install only a watering device of the same size as before the reform.

  In this way, there is a problem in terms of wastewater treatment, so that the reform of existing buildings cannot be promoted. In RC, the housing will be 60 years, in some cases 100 years, the drainage will be the bottleneck. However, it was difficult to reform, and the utility value of the building was low, and it was often demolished in about 30 years.

  In the housing complex, there was not a sufficient system for the reform including the drainage system from the watering equipment, and the reform by the free design was not performed. The main object of the present invention is to provide a drainage system that is particularly suitable for the reform of existing apartment houses.

  The gist of the present invention is a drainage system for reforming an apartment house as claimed in claim 1, wherein a process of installing a double floor on a slab, a siphon drain pipe for a new watering device A siphon-type drainage drainage system characterized by comprising: a step of laying the siphon drainage pipe on the slab without any gradient, and a step of laying the tip of the siphon drainage pipe with a head difference. It is.

  More specifically, as described in claim 6, a drainage system for reforming an apartment house, the step of filling a slab step in an existing watering device and flattening the entire slab. , The process of installing a double floor on the slab, the process of newly installing a drainage stack in a common area, connecting a drainage pipe to a new watering device, and connecting the drainage pipe to a storage tank (hereinafter referred to as a chamber) A step of connecting the siphon drain pipe to the chamber, a step of laying the siphon drain pipe on the slab with no gradient, a step of joining the tip of the siphon drain pipe to the drain stack with a head difference, and passing through the chamber. The present invention relates to a siphon type reformer drainage system characterized by comprising the step of laying a trachea.

  The present invention is a drainage system suitable for the reform of an apartment house, and the invention according to claim 1 and claim 6 can be reformed by freely designing the arrangement of watering devices. Thus, the system is fully compatible even when the capacity of the watering equipment is increased.

  The problems in reforming the conventional drainage system are as described above, but it is also true that there is a further problem, one of which is about changing the installation location of watering equipment. is there. The drainage system that has been widely used so far is basically drainage by gravity. In other words, a narrow gap between the floor and the concrete slab is provided with a gradient, but the drainage pipe is laid, but when a watering device is placed at a position far from the drainage stack, the drainage pipe is laid with a certain slope. Therefore, it is necessary to increase the space between the floor and the concrete slab by an amount corresponding to the gradient, and conversely, this has the major drawback of narrowing the vertical living space. is there.

  The present invention provides a drainage system that solves all the problems in the existing apartment housing reform as described above, and has a double floor on the slab as described in claim 1. A process comprising the steps of installing, connecting the siphon drain pipe to a new watering device, laying the siphon drain pipe on the slab without any gradient, and laying the tip of the siphon drain pipe with a water head difference. More specifically, a step of filling the system with a slab step in an existing watering device and flattening the entire slab as described in claim 6 (claim 2). , A step of newly installing a drainage stand pipe in a common part (Claim 5), a step of connecting a drainage conduit to a new watering device, a step of connecting the drainage conduit to the chamber, and a siphon drainage to the chamber A step (Claim 3), a step of joining the tip of the siphon drainage pipe to the drainage stack with a water head difference (Claim 5), and a process of laying a vent pipe in the storage tank (Claim 4). It proposes a drainage system.

  The drainage system employed in the present invention basically employs a siphon drainage system, and details thereof are proposed in Patent Documents 1 and 2.

JP 2000-297447 A

JP 2003-201727 A

  The outline of such a siphon drainage system will be described with reference to FIG. 1. The siphon drainage pipe 22 comprises a drainage stack 20 installed in the PS and a siphon drainage pipe 22 connected to a watering device 21, and the siphon drainage pipe 22 has a head difference Hs. A drainage system connected to the drainage stack 20, in which the water in the siphon drainage pipe 22 is drained by a negative pressure suction force due to the water head difference Hs, and the siphon drainage pipe 22 has no gradient on the slab S It is to be laid.

  Now, if it demonstrates with the specific example (Claim 6) of the siphon type | formula drainage system of this invention, when reforming a housing complex, the drainage system used as the neck is slab in the existing watering apparatus. The step portion is filled with mortar, concrete, or the like, or a box-shaped object is laid, the entire slab is flattened, and the slab surface is processed so as to be suitable for subsequent siphon drainage pipes. On the other hand, a laying space for the siphon drainage pipe is secured as a double floor that maintains a predetermined height with respect to the slab surface.

  Then, a separate drainage stand pipe separate from the conventional drainage standpipe is newly installed, and preferably this is newly installed in a common part of the apartment house. Preferably, a drainage standpipe is newly installed in a shared part outside the building, and a siphon drainage pipe from each house is connected with a water head difference. For this reason, the siphon drain pipe can be laid without passing through another person's exclusive part. Of course, it is possible to comfortably provide a drainage standpipe that is larger than the conventional drainage standpipe, and it is possible to cope with an increase in the number of watering equipment and the number of watering equipment larger than the existing watering equipment. It has become possible. In addition, when indoor PS is excluded, there exists an advantage that a room becomes large correspondingly.

  The size of the drainage standpipe is often small in existing buildings. Therefore, it is necessary to calculate the size of the drainage standpipe again after calculating it again. As described above, it is difficult to re-install the drainage stack that has been increased in size at the position of the tube, and it can be installed outside.

  However, when draining with gradient drainage in the same manner, it may not be laid because the drainage does not reach the outside of the building due to the distance of the siphon drainage pipe. Moreover, even when draining with a normal siphon drainage system, there is a limitation on the length of the horizontal pulling tube, and it may not be laid in the same manner as described above. A chamber-type siphon drainage system remedies this drawback. That is, it is preferable to provide a chamber for temporarily storing drainage between the watering device and the siphon drainage pipe, thereby eliminating the conventional problems even if there is a large amount of drainage at one time. It is. When the chamber is provided, it is preferable to install a vent pipe, which can reduce noise during drainage. The vent pipe is generally connected to a drainage stack.

The present invention will be further described below with reference to examples.
FIG. 2 shows a drainage system constituted by the steps of claim 6 of the present invention, and comprises the first to eighth steps. Note that this step is not necessarily performed in this order, and the order may be reversed. Of course, in actual construction, unnecessary steps may be omitted. For example, this step may be omitted when it is not necessary to flatten the slab surface to install a new siphon drain pipe. . As described in claim 1, the second, third, fourth to fifth, sixth, and seventh steps are essential steps.

  FIG. 3 is a plan view showing an example of an existing drainage system before reforming. Reference numerals 1a, 1b and 1c denote watering devices, and 2 denotes a drainage stand arranged in the PS. Such PS is arranged in a space in the dwelling unit. The drainage from each of the water-circulating devices 1a, 1b, and 1c merges into one by drainage conduits from the respective devices, and the drainage pipe 3 is laid with a predetermined slope under the floor, and the drainage stack 2 Are connected and connected. Normally, among watering devices, for example, in a bathtub, toilet, washing machine, etc., a recess is formed in the concrete slab, and each watering device is arranged in this recess. This is a depression formed from the relationship of traps attached to each watering device, the relationship of giving a gradient to the drain pipe, and the like. Therefore, in the reform that inherits the conventional type, there has been a big problem that the arrangement of the watering device is basically hardly changed.

  FIG. 4 is a plan view showing the siphon reforming drainage system of the present invention. In this figure, 11a, 11b and 11c are watering devices, which are the same kind of watering devices as 1a, 1b and 1c in FIG. Reference numeral 12 denotes a drainage stack newly disposed not in the dwelling unit but in a common part of the building.

  As described above, in the system of the present invention, the conventional drainage stack 2 is not required, and basically the PS portion can be removed. Although not shown in the figure, the dent formed on the conventional slab is not necessary, so it is desirable to fill it with mortar or concrete.

  In this example, the drainage from each of the water-circulating devices 11a, 11b, and 11c is temporarily stored in the chamber 13 by the drainage conduit, and the siphon drainage pipe 14 is laid on the slab from the chamber 13 without any gradient. The drainage standpipe 12 newly installed in the common part is connected with a water head difference.

  The siphon drain pipe 14 does not need to be laid in a straight line and can be bent freely. Therefore, even if there is an obstacle, it can be easily avoided. The chamber 13 is preferably provided with a vent pipe 15 in order to eliminate the ejection of traps during drainage and the lack of sealing water. In general, the tip of the vent pipe 15 is connected to the drainage stack 12. is there. Of course, drainage from a plurality of dwelling units can be performed on the drainage stack 12 newly provided in the common part.

FIG. 5 is a sectional view showing an example of a conventional gradient drainage system and the siphon drainage system of the present invention. FIG. 5 (a) is the former and FIG. 5 (b) is the latter sectional view.
In FIG. 5 (a), a recess SA is formed in the concrete slab S, PS is provided at this site, and the drainage stack 2 is erected here. Then, a drain pipe (drain pipe) 3 is laid on the trap 1aa of the watering device 1a typified by a washing machine, and this joins 2a provided in the drain stack 2 in the recess SA. It is connected to the.

  On the other hand, FIG. 5B is a cross-sectional view of the present invention, and FIG. 5A is a view in which the dent SA formed in the concrete slab S is backfilled with mortar Sa to flatten the slab S surface. It is a thing. And the watering device 11a represented by the washing machine is installed in a part different from the conventional part, the drainage conduit 14a is connected to the trap 11aa of the watering equipment 11a, and the chamber 13 is connected. This is an example in which the connected siphon drain pipe 14 is placed on the slab S.

  The present invention is as described above. Distinctively speaking, the drainage stack 12 is newly installed in the common part, and the siphon drainpipe 14 is laid from each watering device through the chamber 13. This is a reform drainage system using a siphon drainage system consisting of, and can be freely arranged with watering equipment, and the change (increase) in the capacity of the drainage can be easily dealt with by installing the chamber 13 It has become. As described above, according to the present invention, drainage is laid in a chamber system, and the whole is laid as a double floor F. The height of the double floor F depends on the height of the trap in the unit bath. However, depending on the function, it may be about 150 mm. Furthermore, by making a double floor and changing the entire surface, it has been possible to reduce the space behind the ceiling by reducing the ceiling space from what was previously piped to the ceiling. It can be constructed without reducing the overall vertical living space.

  The present invention was able to provide a drainage system suitable for the reform of existing buildings, and became a reform drainage system corresponding to the change, expansion, and enlargement of the arrangement of watering equipment. An optimal system could be provided for housing renovation.

FIG. 1 is a diagram showing an outline of a siphon drainage system. FIG. 2 is a drainage system diagram constituted by the process of claim 5 of the present invention. FIG. 3 is a plan view showing an example of an existing drainage system before reforming. FIG. 4 is a plan view showing the siphon reforming drainage system of the present invention. FIG. 5 is a sectional view of the drainage system.

Explanation of symbols

1a, 1b, 1c ...
1aa: Trap for water-borne equipment 1a,
2. Drainage stack,
2a ... The confluence of the drainage stack 2
3. Siphon drain pipe,
11a, 11b, 11c ... new watering equipment,
11aa: Trap for the new watering device 11a,
12. New drainage stack,
13. New chamber,
14. New siphon drain pipe,
15. New ventilation pipe,
20 ... drainage stack,
21. Watering equipment,
22. Siphon drain pipe,
F ... Double floor,
Hs: water head difference,
PS Pipe pipe space,
S ... Slab,
Sa: Mortar that fills the dent SA,
SA ... Slab dent.

Claims (6)

  This is a drainage system for renovating apartment buildings, the process of installing a double floor on the slab, the process of connecting the siphon drain pipe to a new watering device, and the siphon drain pipe on the slab with no gradient A siphon-type reform drainage system comprising: a step of laying, and a step of laying the tip of the siphon drainage pipe with a water head difference.   2. The siphon-type reform drainage system according to claim 1, wherein a step of filling a slab step in an existing watering device and flattening the entire slab is added.   The siphon-type reform drainage system according to claim 1 or 2, further comprising a step of connecting a storage tank by a drainage conduit between a new watering device and a siphon drainage pipe.   The siphon type reformer drainage system according to claim 3, wherein a step of laying a vent pipe in the storage tank is added.   The siphon-type reformer according to any one of claims 1 to 4, further comprising a step of newly installing a drainage stack in a common part, and further adding a step of joining the tip of the siphon drainage tube to the drainage stack with a head difference. System drainage system.   This is a drainage system for renovating apartment buildings. The process of filling the slab level in existing watering equipment and flattening the slab as a whole, the process of installing a double floor on the slab, and the drainage standpipe are shared. The process of newly installing in the part, connecting the drainage conduit to the new watering equipment, connecting the drainage conduit to the storage tank, connecting the siphon drainage pipe to the storage tank, and the siphon drainage pipe on the slab with no gradient A siphon-type drainage drainage system comprising: a step of laying, a step of joining a tip of a siphon drainage pipe to the drainage stack with a water head difference, and a step of laying a vent pipe in a storage tank.

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