JP5618780B2 - Sprinkler piping - Google Patents
Sprinkler piping Download PDFInfo
- Publication number
- JP5618780B2 JP5618780B2 JP2010261443A JP2010261443A JP5618780B2 JP 5618780 B2 JP5618780 B2 JP 5618780B2 JP 2010261443 A JP2010261443 A JP 2010261443A JP 2010261443 A JP2010261443 A JP 2010261443A JP 5618780 B2 JP5618780 B2 JP 5618780B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- unwinding
- sprinkler
- head
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229920003020 cross-linked polyethylene Polymers 0.000 description 9
- 239000004703 cross-linked polyethylene Substances 0.000 description 9
- 239000002184 metal Substances 0.000 description 5
- 210000002310 elbow joint Anatomy 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 208000021760 high fever Diseases 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/68—Details, e.g. of pipes or valve systems
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
Description
本発明は、天井裏に配管されるスプリンクラー用配管に関する。 The present invention relates to a sprinkler pipe to be piped on the back of a ceiling.
スプリンクラー用配管は一般に給水用主管と、該主管に補助管又はヘッダー等を介して接続される巻出し管と、天井に設置されるスプリンクラーヘッドを備え、前記巻出し管の管端部に連結されるヘッド取付管とからなり、消防法の改正により近年、巻出し管に架橋ポリエチレン管等の樹脂管が多用されるようになって来ている。 Sprinkler piping generally includes a water supply main pipe, an unwind pipe connected to the main pipe via an auxiliary pipe or a header, and a sprinkler head installed on the ceiling, and is connected to the pipe end of the unwind pipe. In recent years, resin pipes such as cross-linked polyethylene pipes have been frequently used for unwinding pipes due to revisions to the Fire Service Act.
図１は、特許文献１に開示されるスプリンクラー用配管の一例を示すもので、給水用主管１と、該主管１に接続されるヘッダー２と、天井８（図２）に設置されるスプリンクラーヘッド３を備えたヘッド取付管４と、前記ヘッダー２とヘッド取付管４とを接続する、架橋ポリエチレン管よりなる巻出し管５とよりなり、ヘッド取付管４は図２に示すように、金属部分４ａをインサート成形したエルボ継手状をなし、金属部分４ａでスラブ６に取付金具７により支持されている。 FIG. 1 shows an example of a sprinkler pipe disclosed in Patent Document 1, a water supply main pipe 1, a header 2 connected to the main pipe 1, and a sprinkler head installed on a ceiling 8 (FIG. 2). 2 and a unwinding pipe 5 made of a cross-linked polyethylene pipe for connecting the header 2 and the head mounting pipe 4, and the head mounting pipe 4 has a metal part as shown in FIG. An elbow joint shape is formed by insert molding 4a, and is supported by a metal fitting 4 on the slab 6 by a metal portion 4a.
巻出し管に樹脂管を用いた場合、巻出し管は天井裏にそのまま置いて這わせておけばよく、金属管のように建物の躯体等に吊り金具で支持する必要がないこと、金属管の場合、天井裏への他の配管、例えば給水・給湯管、雑配水管、汚水管、空調ダクト、電気ケーブルのラック配管などを迂回し、或いは天井に取付けた前記ヘッド取付管に接続できるようにするためエルボ継手を用いて方向転換し、エルボ継手による接続作業のために寸法計測、管の切断、ネジ切り、捩じ込み作業等が必要であるのに対し、樹脂管は概して金属管に比べ可撓性を有するため、エルボ継手を用いなくても方向転換が可能であり、したがってエルボ継手を用いた場合のような前記作業が不要であること等により、施工が容易である利点があるが、火災が発生したとき、スプリンクラーヘッドから散水できるようにするため、巻出し管には、高熱で中までは容易に溶融しないような耐熱性が要求される。 If a resin pipe is used for the unwinding pipe, the unwinding pipe should be placed on the back of the ceiling as it is, and it is not necessary to support it with a hanging bracket on the building frame like a metal pipe. In this case, other pipes on the back of the ceiling, such as water supply / hot water supply pipes, miscellaneous water distribution pipes, sewage pipes, air conditioning ducts, rack pipes for electric cables, etc. can be bypassed or connected to the head mounting pipes mounted on the ceiling. However, resin pipes are generally used as metal pipes, while dimensional measurement, pipe cutting, threading, and screwing work are necessary for the connection work using elbow joints. Compared with flexibility, it is possible to change the direction without using an elbow joint. Therefore, there is an advantage that construction is easy due to the fact that the above-described operation is not necessary as in the case of using an elbow joint. But there was a fire It can, in order to be able watering sprinkler head, the unwinding tube, to medium high fever is easily melted No such heat resistance is required.
そこで従来は、巻出し管に中まで容易には溶融しない肉厚を有する口径の大きなものが用いられているが、肉厚が大で、口径の大きなものは剛性も大きく、曲げ難くなってヘッド取付管への取付作業が容易でない嫌いがあった。 Therefore, in the past, a large-diameter tube having a thickness that does not melt easily to the inside has been used for the unwinding tube. However, a large-wall tube having a large diameter has high rigidity and is difficult to bend. There was a dislike that the mounting work to the mounting pipe was not easy.
本発明は、火災時の送水機能を損なうことなく、ヘッド取付管への取付作業を容易にする巻出し管を備えたスプリンクラー用配管を提供することを目的とする。 An object of this invention is to provide the sprinkler piping provided with the unwinding pipe | tube which makes easy the attachment operation | work to a head attachment pipe | tube, without impairing the water supply function at the time of a fire.
給水用主管と、該主管に補助管又はヘッダー等を介して接続される、可撓性のある樹脂製の巻出し管と、天井に設置されるスプリンクラーヘッドを備え、前記巻出し管の管端部に連結されるヘッド取付管よりなり、天井裏に配管されるスプリンクラー用配管において、前記巻出し管は全長のうち、ヘッド取付管側のヘッド取付管に接続される一部が他の部分に比べ、小径であるか、或いは硬度の低い材質で、剛性が小さく形成されることにより撓みやすくし、しかも前記ヘッド取付管側の一部は、スプリンクラーヘッドからの散水距離以下の長さにされることを特徴とする。
A main pipe for water supply; a flexible resin unwinding pipe connected to the main pipe via an auxiliary pipe or a header; and a sprinkler head installed on the ceiling, the pipe end of the unwinding pipe In the sprinkler piping that is connected to the head and is piped to the back of the ceiling, the unwinding tube is part of the total length that is connected to the head mounting tube on the side of the head mounting tube. compared either a small or a low material hardness, rigidity is easily bent by Rukoto formed small and a part of said head mounting tube side is watering distance less in length from the sprinkler head It is characterized by that.
請求項１に係わる発明によると、巻出し管はスプリンクラーヘッド側の一部が他の部分に比べ、剛性が小さいため、可撓性に富み、ヘッド取付管への取付作業が容易に行えること、剛性が小さくても規定の散水量を確保できること、巻出し管の前記一部はスプリンクラーヘッドからの散水範囲内にあるため、火災時には散水で保護されて中まで溶融しにくく、送水機能を維持できること等の効果を有し、また巻き出し管の一部について、その剛性を低くすることができる。
According to the invention relating to claim 1, since the unwinding pipe has a part of the sprinkler head side which is less rigid than the other part, it is rich in flexibility and can be easily attached to the head mounting pipe. Even if the rigidity is small, the specified amount of water can be secured, and since the part of the unwinding pipe is within the watering range from the sprinkler head, it is protected by watering in the event of a fire and is difficult to melt to the inside, and the water supply function can be maintained have a effect etc., and for part of the unwinding tube, it is possible to lower the rigidity thereof.
以下、本発明の実施形態のスプリンクラー用配管について図面により説明する。図中、図１及び図２に示すものと同一構造部分には同一符号を付した。 Hereinafter, piping for sprinklers according to an embodiment of the present invention will be described with reference to the drawings. In the figure, the same structural parts as those shown in FIGS. 1 and 2 are denoted by the same reference numerals.
図１は、本発明が適用されるスプリンクラー用配管の一例であり、図３は、別の例を示すもので、この例のスプリンクラー用配管は、給水用主管１１と、該主管１１より分岐する複数の補助管１２と、天井に設置されるスプリンクラーヘッド１３を備えたヘッド取付管１４と、前記各補助管１２にそれぞれ１ないし複数設けられる多口継手１５（ヘッダーでもよい）と前記ヘッド取付管１４を連結する、架橋ポリエチレン管よりなる巻出し管１６とよりなっている。 FIG. 1 is an example of a sprinkler pipe to which the present invention is applied, and FIG. 3 shows another example. The sprinkler pipe of this example branches from a water supply main pipe 11 and the main pipe 11. A plurality of auxiliary pipes 12, a head mounting pipe 14 provided with a sprinkler head 13 installed on the ceiling, one or more multi-joints 15 (may be headers) provided in each of the auxiliary pipes 12, and the head mounting pipe 14 and an unwinding pipe 16 made of a crosslinked polyethylene pipe.
本発明が適用されるスプリンクラー用配管は、図１及び図３に例示されるものに限らず、給水用主管と該主管に補助管又はヘッダーを介して接続される、可撓性のある樹脂製の巻出し管と、天井に設置されるスプリンクラーヘッドを備え、前記巻出し管の管端部に連結されるヘッド取付管よりなるスプリンクラー用配管を備えたものであればどのような構造のものでもよい。 The sprinkler pipe to which the present invention is applied is not limited to those illustrated in FIGS. 1 and 3, and is made of a flexible resin connected to the main water supply pipe and the main pipe via an auxiliary pipe or a header. Any structure of the unwinding pipe and the sprinkler head installed on the ceiling and having a sprinkler pipe comprising a head mounting pipe connected to the pipe end of the unwinding pipe Good.
巻出し管についても前記した架橋ポリエチレン製のものに限らず、例えば内層が架橋ポリエチレン、外層が非架橋ポリエチレンよりなる２層架橋ポリエチレン管、単なるポリエチレン管或いはポリブテン管等を用いることができる。 The unwinding tube is not limited to the one made of the above-described crosslinked polyethylene, and for example, a two-layer crosslinked polyethylene tube whose inner layer is made of crosslinked polyethylene and an outer layer made of non-crosslinked polyethylene, a simple polyethylene tube or a polybutene tube can be used.
図４は、図１及び図３に示すスプリンクラー用配管における、図２に対応するヘッド取付管４、１４に接続される巻出し管２１について示すもので、該巻出し管２１は、ヘッド取付管側のヘッド取付管４、１４に接続される一部２１ａが小径にされ、他の部分２１より剛性が小さくされ、撓み易くなっている。 FIG. 4 shows the unwinding tube 21 connected to the head mounting tubes 4 and 14 corresponding to FIG. 2 in the sprinkler piping shown in FIGS. 1 and 3, and the unwinding tube 21 is a head mounting tube. A part 21a connected to the head mounting pipes 4 and 14 on the side is made smaller in diameter, has a smaller rigidity than the other parts 21, and is easily bent.
前記一部２１ａの長さはスプリンクラーヘッド１３より散布される散水範囲に収まる長さ、すなわち散水距離以下にされ、火災時には散水で保護されて、温度上昇が制限され、これにより中まで溶融し難くなって、送水機能が維持できるようにしてある。 The length of the part 21a is set to be within a watering range sprayed from the sprinkler head 13, that is, a watering distance or less, and is protected by watering in the event of a fire, so that the temperature rise is limited and it is difficult to melt to the inside. Thus, the water supply function can be maintained.
本発明者らは、２０mmφの２層架橋ポリエチレン管において、端からの一部の長さ２００ｃｍを１６mmφとして放水実験を行ったところ、規定放水量の８０ｌ/minを確保することができ、２０mmφの２層架橋ポリエチレン管とほぼ同等の放水量を確保することができた。 The present inventors conducted a water discharge experiment on a 20-mmφ double-layer cross-linked polyethylene pipe with a part length of 200 cm from the end being 16 mmφ. As a result, the specified water discharge amount of 80 l / min could be secured, and 20 mmφ The amount of water discharged was almost the same as that of the two-layer crosslinked polyethylene pipe.
図５に示す別の実施形態の巻出し管２３は端からの一部２３ａの長さを他部より硬度の低い材質（同材質であっても異種の材質であってもよい）で形成し、剛性を小さくしたものである。 In the unwinding tube 23 of another embodiment shown in FIG. 5, the length of the part 23a from the end is made of a material having a lower hardness than the other part (which may be the same material or a different material). The rigidity is reduced.
巻出し管の一部の剛性を他部より小さくするには、以上の手段のほか、一部の肉厚を他部より薄くしてもよいし、以上の複数の手段のうち、二以上の手段を組合わせてもよい。 In order to make the rigidity of a part of the unwinding tube smaller than the other part, in addition to the above means, a part of the wall thickness may be made thinner than the other part. You may combine a means.
１、１１・・給水用配管
２・・ヘッダー
３、１３・・スプリンクラーヘッド
４、１４・・ヘッド取付管
５、１６、２１、２３・・巻出し管
６・・スラブ
７・・取付金具
１２・・補助管
１５・・多口継手
1, 11 .. Water supply pipe 2.. Header 3, 13.. Sprinkler head 4, 14... Head mounting pipe 5, 16, 21, 23.・ Auxiliary pipe 15
Claims (1)
A main pipe for water supply; a flexible resin unwinding pipe connected to the main pipe via an auxiliary pipe or a header; and a sprinkler head installed on the ceiling, the pipe end of the unwinding pipe In the sprinkler piping that is connected to the head and is piped to the back of the ceiling, the unwinding tube is part of the total length that is connected to the head mounting tube on the side of the head mounting tube. compared either a small or a low material hardness, rigidity is easily bent by Rukoto formed small and a part of said head mounting tube side is watering distance less in length from the sprinkler head Sprinkler piping characterized by that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010261443A JP5618780B2 (en) | 2010-11-24 | 2010-11-24 | Sprinkler piping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010261443A JP5618780B2 (en) | 2010-11-24 | 2010-11-24 | Sprinkler piping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2012110487A JP2012110487A (en) | 2012-06-14 |
| JP5618780B2 true JP5618780B2 (en) | 2014-11-05 |
Family
ID=46495390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010261443A Active JP5618780B2 (en) | 2010-11-24 | 2010-11-24 | Sprinkler piping |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5618780B2 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5521746U (en) * | 1978-07-29 | 1980-02-12 | ||
| JPH0994306A (en) * | 1995-09-29 | 1997-04-08 | Bosai Kikaku:Kk | Fire fighting sprinkler piping |
| JPH10118219A (en) * | 1996-08-28 | 1998-05-12 | Mitsui Chem Inc | Piping for sprinkler and method for laying pipings |
| JPH11313903A (en) * | 1998-05-07 | 1999-11-16 | Bosai Kikaku:Kk | Unwinding piping for sprinkler |
| JP2001061983A (en) * | 1999-08-26 | 2001-03-13 | Matsushita Electric Works Ltd | Piping structure for sprinkler |
| JP2009089767A (en) * | 2007-10-04 | 2009-04-30 | Nohmi Bosai Ltd | Sprinkler piping |
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2010
- 2010-11-24 JP JP2010261443A patent/JP5618780B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012110487A (en) | 2012-06-14 |
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