JPH093994A - Piping method - Google Patents

Abstract

(57) [Summary] [Purpose] It is an object of the present invention to provide a piping method capable of facilitating on-site work around a header and improving the quality of piping. [Structure] In a factory, a header 1 and a plurality of branch pipes 2 are assembled or integrally formed into a unit U, and
A water pressure test or the like is performed on the unit U, and it is confirmed that there is no problem such as water leakage in the connection portion or the like. next,
The unit U is transported to the site, and the end of the main pipe 3 is connected to the inlet of the header 1 of the unit U. Next, fix the header 1 of the unit U on the slab 6 or in the ceiling,
Subsequently, each branch pipe 2 is laid on the slab 6 or along the pipe path in the ceiling. The above-mentioned laying is performed up to the supply position of the kitchen or bathroom, and is connected to the end fitting 4 provided in the kitchen or the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping method for sending a fluid such as hot water to a large number of systems by using a header and a branch pipe, and particularly to a piping effective for water supply / hot water supply in an apartment or the like. It is about the method.

[0002]

2. Description of the Related Art In recent years, a sheath pipe header construction method using a resin flexible pipe or a header, which has advantages such as easy construction and renewal of pipes, has been widely used for water supply and hot water supply pipes of condominiums. As shown in FIG. 2, for example, as shown in FIG. 2, the pipe method by the sheath pipe header construction method attaches the header fixing metal fitting 20 to a wall portion such as a pipe shaft located near a fluid source such as a water heater, The header 21 is fixed to the attached fixing metal fitting 20 with a bolt or the like. Furthermore, one end of each of the plurality of branch pipes 22 is connected to the header 21. After that, the header 21
If there is no water leakage at the connection between the branch pipe 22 and the branch pipe 22, a water pressure test is performed to confirm that there is no abnormality such as water leakage. Next, each of the branch pipes 22 is laid on the slab or in the ceiling to a desired position in a bathroom, a kitchen or the like by slab rolling pipes or ceiling pipes.

In FIG. 2, reference numeral 24 is a main pipe for connecting the header 21 to a fluid source such as a water heater. The branch pipe 22 is composed of a sheath pipe and a flexible resin pipe that passes through the sheath pipe.

[0004]

However, in the piping method as described above, it is required to attach the header 21 and to connect the branch pipe 22 to the header 21 on site. At this time, the connection work is complicated, and the types and numbers of components and accessory parts are large, so that there is a problem in that piping work around the header on the site is troublesome.

Further, since it is necessary to carry out a water leakage test on site, there is a possibility that the quality of the laid pipe may vary. Furthermore, since excessive pressure is applied during the water leakage test, the pipe may be deformed and water may leak from the connecting portion. Therefore, particular care is required in connecting the pipe to the header 21. The present invention has been made in view of the above problems, and an object of the present invention is to provide a piping method capable of facilitating on-site work around a header and improving the quality of piping. .

[0006]

In order to achieve the above object, the piping method of the present invention is a piping method for sending a fluid to a plurality of systems using a header, in which a header and a plurality of branch pipes are provided in advance. Assembled or integrated into a unit,
After inspecting the unit for abnormalities such as water leaks,
It is characterized in that the header and the branch pipe of the unit are arranged along a predetermined pipe path.

According to the invention described in claim 2, in addition to the structure described in claim 1, the header of the unit is
It is characterized in that it is fixed on the slab on which the branch pipe is arranged or in the ceiling.

[0008]

In the invention described in claim 1, since the header and the branch pipe are unitized in advance, the complicated work of connecting the header and the branch pipe on site is not necessary.
Also, before attaching the header etc. to the slab or ceiling,
Since the water leak test of the unit is performed in advance, the unit consisting of the header and the branch pipe with stable quality regarding water leak can be used, and the risk of water leak at the site is greatly reduced.

Further, in the invention described in claim 2, since the header constituting the unit is arranged on the slab or in the ceiling, compared to the case where the header is attached to the wall of the pipe shaft or the like through the header fixing metal fitting, Not only is the mounting work easier, but the fixing metal fittings and the like are not required, so that the header can be stored more easily.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to the drawing of FIG. First, in a factory, a header 1 and a plurality of branch pipes 2 are assembled or integrally molded to form a unit U. The branch pipe 2 is configured such that a flexible resin pipe is passed through the sheath pipe.

Next, in the factory, a water pressure test or the like is performed on the unit U to confirm that there is no problem such as water leakage at the connecting portion or the like. Next, the unit U that has passed the above inspection is transported to the site, and the end of the main pipe 3 is connected to the inlet of the header 1 of the unit U. The other end of the main pipe 3 is connected to a fluid source 5 such as a water heater.

Next, the header 1 of the unit U is fixed on the slab 6 or in the ceiling, and then each branch pipe 2 is slab 6 by slab rolling pipe or ceiling pipe.
Lay along the piping route above or in the ceiling. The above-mentioned laying is performed up to the supply position of the kitchen or bathroom, and is connected to the end fitting 4 provided in the kitchen or the like. The branch pipe 2 unitized with the header 1 does not necessarily have a length that allows piping to a target position such as a kitchen, and another pipe material may be added to the branch pipe 2 to the target position.

As described above, in the piping method of the present embodiment, complicated piping work around the header is not required on the site, and piping can be performed easily and in a short construction period even if not a skilled plumber. Further, regarding the leakage of the branch pipe 2 and the connection between the branch pipe 2 and the header 1 and the like, it is possible to sufficiently inspect in advance in the factory, so that the leakage resistance performance is better than the leakage test on site. Can provide good piping.

As described above, the on-site construction such as the attachment of the header 1 and the branch pipe 2 on the spot is facilitated, and the construction period on the spot is shortened. Further, as described above, since the header 1 is horizontally mounted inside the ceiling or on the slab 6, the header 1 can be mounted more easily than the conventional case where the header 1 is fixed to the wall through the fixing metal fittings. And the delivery is also improving.

Although the header 1 and the plurality of branch pipes 2 are unitized in the above embodiment, the header 1
The main pipe 3 for supplying hot water and the like and the header 1 may be assembled in advance to form a unit. In addition, the mutual positional relationship between the main pipe 3 and the branch pipe 2 with respect to the header 1 and the main pipe 3
The size and the number of the branch pipes 2, the shape of the header 1, and the like are determined to be the optimum shape and the number of pipes depending on the use and the pipe position.

In the above embodiment, the unit U is described as being fixed in the ceiling or on the slab. However, as in the conventional case, the unit U is fixed to a predetermined wall portion via a fixing member. Good. Further, the fluid supplied by the pipe laid by the above piping method is not limited to hot water,
It may be cold water, steam, or gas such as city gas, and such a fluid may be sent to another system by using the header as described above.

[0017]

As described above, the piping method of the present invention eliminates the need for piping connection work around the header in the field, and thus has the effect of shortening the construction period. In addition, since a water leak test or the like is sufficiently performed in advance and then piping work is performed on site, a water leak accident can be significantly reduced. That is, there is an effect that the quality of the laid pipe is improved.

Further, in the piping method described in claim 2,
Since the header is fixed on the slab or in the ceiling, there is an effect that the fitting of the header is improved.

[Brief description of drawings]

FIG. 1 is a diagram showing a piping configuration around a unit and a header according to an embodiment of the present invention.

FIG. 2 is a diagram showing a conventional piping configuration around a header.

[Explanation of symbols]

 U unit 1 Header 2 Branch pipe 3 Main pipe 5 Water heater 6 Slab

Claims (2)

[Claims] 1. In a piping method for sending a fluid to a plurality of systems using a header, a header and a plurality of branch pipes are assembled or integrated into a unit in advance, and the unit is inspected for abnormality such as water leakage. After that, the header and the branch pipe of the unit are arranged along a predetermined pipe path. 2. The piping method according to claim 1, wherein the header of the unit is fixed on a slab in which a branch pipe is arranged or in a ceiling.