JP5085977B2 - Piping maintenance method - Google Patents

Description

  The present invention relates to a piping maintenance method used in a non-gradient drainage system, such as siphon drainage, forced drainage (pressure feeding), vacuum (vacuum) drainage, and the like, which has a non-gradient part disposed along a floor slab. .

  In recent years, non-gradient drainage systems such as siphon drainage, forced drainage (pressure feed), and vacuum (vacuum) drainage have been proposed in place of conventional gradient drainage systems. This non-gradient drainage system has a non-gradient part arranged non-gradient along the floor slab, and drainage that promotes drainage by applying a downstream force to the drainage in the non-gradient part. System. Among these, for example, as described in Patent Document 1, a siphon drainage system is composed of a watering device and a siphon drainage pipe, and a siphon force generated by a soot pipe that forms a hanging part of the siphon drainage pipe. (Negative pressure) is a system that improves drainage efficiency from watering devices.

  In such a non-gradient drainage system, since a drain pipe having a relatively small diameter is used in the non-gradient part, there is a problem that the drain pipe is easily blocked when only the pipe diameter is considered. On the other hand, the non-gradient drainage system has a merit that the inner wall is cleaned by the self-cleaning action because a force toward the downstream side acts on the drainage in the non-gradient part.

  In such a non-gradient drainage system, drainage from a plurality of watering devices is usually connected to a drainage stack through separate routes. There are various types of watering equipment, such as bathrooms, washstands, kitchen sinks, etc., but depending on the type, the frequency of use, the type of drained water, the amount of drainage, etc. differ, and the inner wall of the non-gradient drain pipe It is considered that there is a variation in the degree of adhesion of dirt to the surface.

In addition, the siphon drainage system in the non-gradient drainage system uses the siphon force (negative pressure) generated in the soot pipe that forms the hanging part of the siphon drainage pipe, as described in Patent Document 1, Although it is a system that improves the efficiency of drainage from watering devices, when the amount of drainage is small, drainage is performed without generating siphon force. Siphon drain pipes that often drain without generating siphon force are less likely to be cleaned by self-cleaning than siphon drain pipes that often drain by generating siphon force It will be. Therefore, it is considered that the variation in dirt between the siphon drain pipe that often drains without generating siphon force and the siphon drain pipe that often drains with siphon force generated increases. .
JP-A-6-42019

  This invention is made | formed in view of the said fact, and it aims at providing the piping maintenance method which can perform maintenance of piping easily.

The pipe maintenance method according to claim 1 of the present invention has a non-gradient portion arranged with no gradient, and promotes drainage by applying siphon force to the drainage in the non-gradient portion as a downstream force. a pipe maintenance method applied isocratic drainage system comprising a plurality of siphon drainage pipes, and at least the isocratic portion of the plurality of siphon drainage pipes, of the siphon drain pipe, mainly sump flow wastewater A siphon drain pipe for main drainage corresponding to a watering device, and a siphon drain pipe for main continuous drainage that is less frequently drained by siphon force than the main siphon drain pipe. It is interchanged between, characterized by.

  Here, the non-gradient does not necessarily need to be in the horizontal direction, and includes those having a slight step or gradient along the floor slab or ceiling.

  According to the present invention, since at least the non-gradient portions of the plurality of non-gradient drain pipes are interchanged, it is possible to reduce the variation in the degree of dirt for each of the plurality of non-gradient drain pipes.

In addition, piping maintenance includes a spare drain pipe disposed along the non-gradient drain pipe without connecting to a drainage path having a pipe portion corresponding to at least the non-gradient section, and performing the mutual exchange, Can do.

  Thus, when a spare drain pipe is arranged, the unused drain pipe can be replaced for each maintenance by exchanging the spare drain pipe including the spare drain pipe.

Moreover, you may perform piping maintenance by obstruct | occluding the opening of the non-gradient drain pipe disconnected from the said drainage channel by the said mutual replacement | exchange with a closure lid .

  Thus, odor can be prevented by closing the non-gradient drain pipe opening after replacement.

The piping maintenance method according to claim 1 of the present invention is characterized in that the non-gradient drain pipe is a siphon drain pipe, and siphon force is applied to promote drainage of the non-gradient section.

  Especially this invention can be used suitably for a siphon drainage system.

Here, the watering devices mainly used for sinking and draining are tub room drainage, washing machine drainage, etc., and the main siphon drainage pipes corresponding to these watering devices are affected by siphon force. The frequency of drainage is high. On the other hand, the siphon drain pipe for main continuous drainage, which is less frequently drained by siphon force than the main siphon drain pipe, is a non-gradient drain pipe connected to a watering device such as a sink or sink. Therefore, the frequency of the sinking is low.

As described above, by the siphon force is performed drainage acts, since the cleaning of the inner wall of the tube due to self-cleaning action is performed, siphon for sink frequent main sump siphon force is performed drainage acts drained By exchanging between the pipe and the low siphon drain pipe for main continuous drainage, the drain pipe can be cleaned on average.

The pipe maintenance method according to claim 2 of the present invention includes a storage tank that temporarily stores drainage from a plurality of watering devices, and the siphon drain pipe is disposed downstream of the storage tank. It is characterized by.

  Among siphon drainage systems, those equipped with storage tanks can be easily replaced because each siphon drain pipe is connected to the storage tank, and the present invention can be suitably used.

In the pipe maintenance method according to claim 3 of the present invention, the storage space for storing the waste water inside the storage tank is partitioned into a plurality of individual storage portions by a partition member, and the storage space corresponding to each of the plurality of individual storage portions. A drain pipe from a watering device and the siphon drain pipe are connected.

  According to the said structure, since each siphon drain pipe respond | corresponds to a different watering device, since the variation of the dirt for every siphon drain pipe tends to come out, this invention can be used suitably.

  As described above, the present invention can easily perform maintenance of piping by exchanging at least the non-gradient portions of the plurality of non-gradient drain pipes.

  Embodiments according to the present invention will be described below with reference to the drawings.

  In this embodiment, a temporary storage type siphon drainage system will be described as an example of a non-gradient drainage system. The non-gradient drainage system and the pipe maintenance method of the present invention can be applied to other non-gradient drainage systems, and can be applied to siphon drainage systems other than the temporary storage system. First, the overall configuration of the siphon drainage system according to the present embodiment will be described. FIG. 1 is a schematic view showing the overall configuration of the siphon drainage system according to the present embodiment.

  A siphon drainage system 10 according to the present embodiment is a drainage system that efficiently drains drainage from a watering device using siphon force.

  The siphon drainage system 10 of this embodiment is mainly used in an apartment house composed of a plurality of floors. In this embodiment, an example in which the siphon drainage system is used for an apartment house composed of a plurality of floors will be described. The siphon drainage system is preferably used for an apartment house, but can also be used for a detached house or a factory other than the apartment house.

  As shown in FIG. 1, the siphon drainage system 10 includes a drainage stack 12 that allows drainage to flow downward. The drainage stack 12 extends in the vertical direction (longitudinal direction) of the apartment house, and penetrates the floor slab 14 on each floor of the apartment house.

  A plurality of watering devices 16 are provided in each door of each floor of the apartment house, and one end of a drain introduction pipe 18 through which drainage discharged from the watering device 16 flows is connected to each watering device 16. ing. The other end of the drainage introduction pipe 18 is connected to the storage tank 50. The drainage introduction pipe 18 is disposed with a gradient so that the storage tank 50 side is lowered.

  The storage tank 50 is for temporarily storing drainage from the watering device 16. As shown in FIG. 2, a storage space 52 is configured inside the storage tank 50. The storage space 52 is partitioned into three individual storage portions 52A, 52B, and 52C by a partition member 54. The plurality of drainage introduction pipes 18A to 18C from the watering device 16 described above are respectively connected to the individual reservoirs 52A, 52B, and 52C.

  The individual storage parts 52A, 52B, 52C of the storage tank 50 are provided with connecting parts 51A, 51B, 51C, and siphon drain pipes 22A, 22B, 22C (collectively referred to as “siphon drain pipe 22”). It is connected. The connection portions 51A, 51B, 51C have the same connection shape, and any of the siphon drain pipes 22A, 22B, 22C can be connected.

  As shown in FIG. 1, the siphon drain pipe 22 includes a horizontal pulling pipe 24 disposed along the floor slab 14, and a soot pipe 26 communicating with the horizontal pulling pipe 24. The horizontal pipe 24 communicates with the storage tank 50 and is disposed on the floor slab 14 with no gradient in the horizontal direction. The soot pipe 26 communicating with the horizontal pulling pipe 24 is disposed in the vertical direction (vertical direction) along the drainage stack 12. The soot pipe 26 is connected to the drainage stack 12 through a junction joint 40. The junction joint 40 joins the drainage from the soot pipe 26 to the drainage stack 12.

  The horizontal pulling pipe 24 and the vertical pipe 26 are constituted by continuous drainage pipes without joining with other drainage pipes up to the junction part joint 40, and lead the drainage to the drainage stack 12. Further, the inner diameter of the horizontal pulling pipe 24 and the dredging pipe 26 is set so that the drainage flows in a full flow. A siphon force in the direction of drainage is applied to the drainage in the horizontal pipe 24 by the energy of the siphon head Hs.

  As shown in FIG. 1, a vent pipe 30 is further connected to the storage tank 50. The vent pipe 30 is connected to the drainage stack 12 via the junction joint 40.

  The siphon drainage system 10 is provided with a spare pipe 62. The spare pipe 62 includes a horizontal pulling spare pipe 64 disposed along the horizontal pulling pipe 24 and a soot spare pipe 66 disposed along the soot pipe 26. The spare pipe 62 is closed at the upstream end by the closing lid 65, and is connected to the junction joint 40 at the downstream end. The closing lid 65 is attached so as to cover the outer peripheral surface of the upstream end of the spare pipe 62. In this way, by closing the lid with the closing lid 65, it is possible to prevent foreign matter from entering the spare pipe 62. Further, since the outer peripheral end portion of the spare pipe 62 is covered with the closing lid 65, the outer peripheral end portion can be protected, and damage or the like can be prevented. The spare pipe 62 is the same pipe as the siphon drain pipe 22, and can be connected to the connection portions 51 </ b> A to 51 </ b> C of the storage tank 50 instead of the siphon drain pipe 22.

  In the siphon drainage system 10 having the above-described configuration, when the siphon drainage pipe 22 is maintained, the flooring near the upper portion of the storage tank 50 is removed, and the connections of the siphon drainage pipes 22A to 22B and the spare pipe 62 are exchanged. Rotate piping. For example, as shown in FIG. 3, the siphon drain pipe 22A is connected to the connection part 51B, the siphon drain pipe 22B is connected to the connection part 51C, the spare pipe 62 is connected to the connection part 51A, and the siphon drain pipe 22C is not connected. Use pipes. At this time, the closing lid 65 that has closed the spare pipe 62 is removed from the spare pipe 62, and the opening of the siphon drain pipe 22 </ b> C that is disconnected is closed with the closing lid 65. Thus, odor can be prevented by closing the opening of the drain pipe after replacement.

  Thus, by rotating the siphon drain pipes 22A and the spare pipes 62 during maintenance, the degree of contamination in each drain pipe can be made uniform.

  The siphon drain pipe 22 can be replaced in this way because the siphon drain pipe 22 is constituted by a continuous drain pipe, and the junction joint 40 is not joined with other drain pipes. . In a conventional gradient drainage system, since a plurality of drainage pipes are usually joined before reaching the drainage standpipe, replacement work is also required for the connection part with other drainage pipes. Thus, it is difficult to easily replace the drain pipe.

  Another reason why the siphon drain pipe 22 can be replaced is a non-gradient pipe. In the conventional gradient drainage system, a predetermined gradient is necessary for the spare pipe after replacement, and the pipe becomes difficult.

  In addition, the siphon drain pipe 22 can be exchanged for siphon drain pipes (main sloped non-gradient drain pipes) that are compatible with water-retaining devices such as bathtub room drains and washing machine drains, and sinks such as washstands. It is preferable to replace the siphon drainage pipe (a non-gradient drain pipe for main continuous drainage) corresponding to a watering device having a low frequency of sinking and a small amount of drainage per unit time. In the siphon drainage system, the inner wall of the pipe can be cleaned by draining by applying siphon force. However, the siphon drainage pipe corresponding to the water drainage device with a small amount of drainage per unit time is affected by the siphon effect. It is difficult to drain water, and it is difficult to clean the inner wall of the pipe. Therefore, in order to uniformly clean the inner wall of the pipe, it is preferable to replace the siphon drain pipe with a large drainage amount and the siphon drain pipe with a small drainage amount during maintenance.

  In the present embodiment, the example in which the spare pipe 62 is disposed along the siphon drain pipe 22 has been described. However, the spare pipe 62 is not necessarily required. Mutual exchange may be performed between the siphon drain pipes 22A to 22C without the spare pipe 62. In particular, by arranging the spare pipe 62, even if a problem arises in one siphon drain pipe 22 and it is necessary to replace it, the spare pipe 62 is connected instead, so that the replacement is easily performed. be able to.

  Further, in the present embodiment, the entire siphon drain pipe 22 including both the horizontal pulling pipe 24 and the dredging pipe 26 is exchanged. However, only the horizontal pulling pipe 24 may be exchanged. In this case, as shown in FIG. 4, the connection part 25 with the dredging pipe 26 is provided at the downstream end of the horizontal pulling pipe 24, and the connection of the connection part 25 and the connection with the storage tank 50 are changed. I do. The spare pipe 61 is also a spare pipe 61 corresponding only to the horizontal pulling pipe 24. Note that the spare pipe 61 is not necessarily required as described above.

  Moreover, although the siphon drainage system provided with the storage tank 50 was demonstrated in this embodiment, this invention is not provided with the storage tank 50, and the siphon drainage in which the siphon drain pipe 22 is directly connected to the drain pipe of the watering device 16. It can also be applied to the system.

It is the schematic which shows the whole structure of the siphon drainage system which concerns on this embodiment. It is a perspective view which shows the connection part with the inside of the storage tank which concerns on this embodiment, and a siphon drain pipe. It is a figure which shows an example of rotation of the siphon drain pipe which concerns on this embodiment. It is a figure which shows the modification of the spare piping which concerns on this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Siphon drainage system 14 Floor slab 22 Siphon drainage pipe 24 Horizontal pulling pipe 26 Saddle pipe 50 Storage tank 51 Connection part 52 Storage space 52A Individual storage part 52B Individual storage part 52C Individual storage part 61 Spare piping 62 Spare pipe 64 Horizontal pulling spare pipe 65 Closing lid 66 Spare piping

Claims (3)

A non-gradient drainage system comprising a plurality of siphon drainage pipes that have a non-gradient part disposed in a non-gradient manner and that promote drainage by applying siphon force to the drainage in the non-gradient part toward the downstream side. Applicable pipe maintenance method,
At least the isocratic portion of the plurality of siphon drainage pipes, wherein one of the siphon drain tube, a main reservoir flow Shutamari flow for siphon drainage pipes corresponding to plumbing fixtures performed drainage, siphon for flowing said main reservoir A piping maintenance method characterized by exchanging with a siphon drain pipe for main continuous drainage which is less frequently discharged due to siphon force acting than the drain pipe . The piping maintenance method according to claim 1 , further comprising a storage tank that temporarily stores drainage from a plurality of watering devices, wherein the siphon drain pipe is disposed downstream of the storage tank. A storage space for storing the waste water inside the storage tank is partitioned into a plurality of individual storage parts by a partition member, and a drain pipe and the siphon drain pipe from the watering device corresponding to each of the plurality of individual storage parts are connected. The piping maintenance method according to claim 2 , wherein the piping maintenance method is performed.

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