JP3357959B2 - Foam fire extinguishing equipment and its foam mixing device - Google Patents
Foam fire extinguishing equipment and its foam mixing deviceInfo
- Publication number
- JP3357959B2 JP3357959B2 JP07485993A JP7485993A JP3357959B2 JP 3357959 B2 JP3357959 B2 JP 3357959B2 JP 07485993 A JP07485993 A JP 07485993A JP 7485993 A JP7485993 A JP 7485993A JP 3357959 B2 JP3357959 B2 JP 3357959B2
- Authority
- JP
- Japan
- Prior art keywords
- foam
- flange
- fire extinguishing
- venturi tube
- pipe
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/235—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、泡消火設備及びその
泡混合装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foam fire extinguishing system and a foam mixing apparatus therefor.
【０００２】[0002]
【従来の技術】ベンチュリー管を用いる泡混合装置は、
従来、ベンチュリー管の入口側及び出口側の双方に夫々
フランジ部を有し、該ベンチュリー管のスロート部に泡
原液供給口を有してなる。この泡混合装置を泡消火設備
の配管系に設ける場合、前記ベンチュリー管の両側に設
けられたフランジ部の双方に、配管側のフランジ部を夫
々ボルトで連結する。2. Description of the Related Art A foam mixing apparatus using a venturi tube is:
Conventionally, the venturi tube has a flange portion on each of the inlet side and the outlet side, and a throat portion of the venturi tube has a foam concentrate supply port. When this foam mixing device is provided in the piping system of the foam fire extinguishing equipment, the flange portions on the piping side are respectively connected to the flange portions provided on both sides of the venturi pipe with bolts.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記構成によ
れば、泡消火設備の配管系に何等かの外力による曲げ荷
重が加えられたときに、前記ベンチュリー管のスロート
部はその外寸も細く形成されているので、その小径さ故
に機械的強度が低く、集中的に曲げ荷重による影響を受
けてしまう。そのため、該スロート部に破損が生じてし
まう事故がしばしばある。この発明は、上記事情に鑑
み、泡消火設備において、泡消火設備の配管系に曲げ荷
重がかっても、その影響がベンチュリー管のスロート部
に及び難い、泡消火設備及びその泡混合装置を得ること
を目的とする。However, according to the above configuration, when a bending load is applied to the piping system of the foam fire extinguishing equipment by any external force, the throat portion of the venturi tube has a small outer dimension. Since it is formed, its mechanical strength is low due to its small diameter, and it is intensively affected by bending loads. Therefore, there are often accidents in which the throat is damaged. In view of the above circumstances, the present invention provides a foam fire extinguishing apparatus and a foam mixing apparatus for the foam fire extinguishing apparatus, in which even if a bending load is applied to the piping system of the foam fire extinguishing apparatus, the effect is hard to reach the throat portion of the venturi tube. With the goal.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するこの
発明について述べれば、それは、ベンチュリー管と該ベ
ンチュリー管のスロート部に連通する泡原液供給口を備
えた泡混合装置において、前記ベンチュリー管のスロー
ト部の外周に鍔部を設け、該鍔部に前記スロート部に連
通する泡原液供給口を設けてなる泡混合装置であり、
又、一次側配管と二次側配管との間に泡混合装置を設け
た泡消火設備において、前記泡混合装置がベンチュリー
管のスロート部の外周に鍔部を有し、該鍔部に前記スロ
ート部に連通する泡原液供給口を有してなり、又、該鍔
部が前記両配管のフランジ部により挟持されている泡消
火設備である。According to the present invention which achieves the above object, the present invention relates to a foam mixing apparatus having a venturi tube and a foam raw liquid supply port communicating with a throat portion of the venturi tube. A foam mixing device provided with a flange portion on the outer periphery of the throat portion, and provided with a raw foam solution supply port communicating with the throat portion on the flange portion.
Further, in the foam fire extinguishing equipment provided with a foam mixing device between the primary side pipe and the secondary side pipe, the foam mixing apparatus has a flange on an outer periphery of a throat part of the venturi pipe, and the throat is provided on the flange. A foam fire extinguishing facility comprising a foam raw liquid supply port communicating with the pipe section, and the flange section being sandwiched between flange sections of the two pipes.
【０００５】[0005]
【作用】上記構成による本願発明においては、泡混合装
置は、そのスロート部の外周に鍔部を有しており、該鍔
部が配管側のフランジにより挟持されることで泡消火設
備の配管系に接続される。従って、泡消火設備の配管系
に曲げ荷重がかかっても、その影響は前記スロート部に
及び難い。In the present invention according to the present invention, the foam mixing apparatus has a flange on the outer periphery of the throat portion, and the flange is sandwiched by the flange on the pipe side, so that the piping system of the foam fire extinguishing equipment is provided. Connected to. Therefore, even if a bending load is applied to the piping system of the foam fire extinguishing equipment, the effect is hard to reach the throat portion.
【０００６】[0006]
【実施例】本願発明の実施例を添付図面に基づき説明す
る。図１は本願発明に係る泡混合装置を示したもので、
２はベンチュリー管であり、そのスロート部３の外周に
はその全周に亘って鍔部４が装着して設けられている。
該鍔部４には泡原液供給口５が設けられており、この泡
原液供給口５は、オリフィス６、環状室７及び複数の泡
原液注入孔８を順次介してスロート部３に連通してい
る。これらにより泡混合装置１が構成されている。尚、
寸法について述べると、前記ベンチュリー管２は、その
長さｌ1 が１６８ｍｍで形成され、鍔部４は、その長さ
ｌ2 が５０ｍｍで形成される。An embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows a foam mixing apparatus according to the present invention,
Reference numeral 2 denotes a venturi tube, and a flange portion 4 is provided around the entire periphery of the throat portion 3.
The collar portion 4 is provided with a foam concentrate supply port 5, which communicates with the throat portion 3 through an orifice 6, an annular chamber 7 and a plurality of foam concentrate injection holes 8 in order. I have. These constitute a foam mixing device 1. still,
In terms of dimensions, the venturi tube 2 has a length l1 of 168 mm, and the flange 4 has a length l2 of 50 mm.
【０００７】図２は本願発明に係る泡消火設備の要部を
示したものである。一次側配管２０及び二次側配管２１
の間に設けられた泡混合装置１は、その鍔部４が前記両
配管２０、２１に夫々設けられた一対のフランジ部２
２、２３により挟着面Ｔで挟持されており、又、ベンチ
ュリー管２の入口側２ａが一次側配管２０内に、出口側
２ｂが二次側配管２１内に夫々挿入されている。そし
て、一次側配管２０及び二次側配管２１は上述の如く泡
混合装置１を位置せしめて前記一対のフランジ部２２、
２３でボルト２５、２６により共締めされている。ここ
で鍔部４のフランジ部２２、２３との当接面にはシール
用のＯリング９が設けられている。又、３０は泡原液漕
に連通する泡原液供給管であり、泡原液供給口５に接続
されている。FIG. 2 shows a main part of the foam fire extinguishing equipment according to the present invention. Primary side pipe 20 and secondary side pipe 21
The foam mixing device 1 provided between the two pipes 20 and 21 has a pair of flange portions 2 provided with the flange portions 4 respectively.
2 and 23, the inlet side 2 a of the venturi tube 2 is inserted into the primary side pipe 20, and the outlet side 2 b is inserted into the secondary side pipe 21. Then, the primary side pipe 20 and the secondary side pipe 21 position the foam mixing device 1 as described above, and the pair of flange portions 22,
At 23, they are fastened together by bolts 25 and 26. Here, an O-ring 9 for sealing is provided on a contact surface of the flange portion 4 with the flange portions 22 and 23. Reference numeral 30 denotes a foam concentrate supply pipe that communicates with the foam concentrate tank, and is connected to the foam concentrate supply port 5.
【０００８】尚、図示はしないが、鍔部４は、その径を
配管２０、２１側のフランジ部２２、２３と同じか又は
それ以上として形成してもよい。Although not shown, the flange 4 may be formed to have a diameter equal to or larger than the diameter of the flanges 22, 23 on the pipes 20, 21 side.
【０００９】又、鍔部４とベンチュリー管２は一体成形
してもよい。The flange 4 and the venturi tube 2 may be formed integrally.
【００１０】次に、本発明の作動につき説明する。火災
発生時泡消火設備が作動すると、水圧により、水Ａ1は
一次側配管２０よりベンチュリー管２の入口側２ａを通
りスロート部３に流入し、 泡原液Ａ2は泡原液供給管３
０より泡原液供給口５を通ってスロート部３に流入す
る。ここで泡原液Ａ2は適当濃度の水溶液Ａ3となり、ベ
ンチュリー管２の出口側２ｂを通って二次側配管２１に
送出される。この二次側配管は泡ヘッドに連通してお
り、送出された水溶液Ａ3は泡ヘッドから泡状となって
放出される。Next, the operation of the present invention will be described. When the foam fire extinguishing system is activated when a fire occurs, the water A1 flows from the primary pipe 20 through the inlet side 2a of the venturi pipe 2 into the throat section 3 due to the water pressure, and the raw foam liquid A2 flows into the raw foam supply pipe 3
From 0, it flows into the throat section 3 through the foam liquid supply port 5. Here, the foam concentrate A2 becomes an aqueous solution A3 having an appropriate concentration, and is sent out to the secondary pipe 21 through the outlet side 2b of the venturi tube 2. The secondary pipe communicates with the foam head, and the discharged aqueous solution A3 is discharged from the foam head in the form of foam.
【００１１】[0011]
【発明の効果】上記構成による本願発明にあっては、泡
混合装置が、そのスロート部の外周に設けた鍔部が配管
側のフランジ部により挟持されることで、泡消火設備の
配管に接続されているので、配管系に何等かの原因によ
り曲げ荷重がかかっても、泡混合装置のスロート部へは
曲げ荷重による影響が及び難く、そのためスロート部に
破損が生じることがない。According to the present invention having the above structure, the foam mixing apparatus is connected to the piping of the foam fire extinguishing equipment by the flange provided on the outer periphery of the throat portion being sandwiched by the flange on the piping side. Therefore, even if a bending load is applied to the piping system for some reason, the throat portion of the foam mixing device is hardly affected by the bending load, so that the throat portion is not damaged.
【００１２】又、従来の様に泡混合装置を構成するベン
チュリー管の入口側及び出口側の双方にフランジ部を設
ける必要がなく、小径の鍔部をスロート部の外周に設け
ればよいので、従来型に比して小型になり、かつ加工が
容易で、低コストである。In addition, it is not necessary to provide flanges on both the inlet side and the outlet side of the venturi tube constituting the foam mixing apparatus as in the prior art, and a small-diameter flange may be provided on the outer periphery of the throat. It is smaller, easier to process, and lower in cost than the conventional type.
【００１３】更に、従来はベンチュリー管の両側に夫々
設けられたフランジ部の双方に配管側のフランジ部をボ
ルトにより接続していたが、その必要がなくなり、配管
側のフランジ部どうしをボルトにより連結するので、ボ
ルト止めの箇所が減り接続が容易である。Further, conventionally, the flanges on the pipe side are connected to both flanges provided on both sides of the venturi pipe by bolts, but this is no longer necessary, and the flanges on the pipe side are connected by bolts. Therefore, the number of bolted portions is reduced and connection is easy.
【００１４】更に又 、泡混合装置の通水部即ちベンチ
ュリー管が一体物よりなり配管内に収容されるので、外
部からの損傷を免れる。[0014] Furthermore, since the water passage section of the foam mixing apparatus, that is, the Venturi tube is made of a single piece and housed in the pipe, damage from the outside is avoided.
【図１】本願発明の泡混合装置の実施例の縦断面図であ
る。FIG. 1 is a longitudinal sectional view of an embodiment of a foam mixing device of the present invention.
【図２】本願発明の泡消火設備の要部の断面図である。FIG. 2 is a sectional view of a main part of the foam fire extinguishing equipment of the present invention.
１ 泡混合装置 ２ ベンチュリー管 ２ａ 入口側 ２ｂ 出口側 ３ スロート部 ４ 鍔部 ５ 泡原液供給口 ２０ 一次側配管 ２１ 二次側配管 ２２ フランジ部 ２３ フランジ部 DESCRIPTION OF SYMBOLS 1 Foam mixing apparatus 2 Venturi pipe 2a Inlet side 2b Outlet side 3 Throat part 4 Flange part 5 Foam stock solution supply port 20 Primary side piping 21 Secondary side piping 22 Flange part 23 Flange part
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) A62C 31/12 B01F 1/00 - 5/26 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) A62C 31/12 B01F 1/00-5/26
Claims (3)
ロート部に連通する泡原液供給口を備えた泡混合装置に
おいて、前記ベンチュリー管のスロート部の外周に鍔部
を設け、該鍔部に泡原液供給口を設けたことを特徴とす
る泡混合装置。1. A foam mixing apparatus having a venturi tube and a foam concentrate supply port communicating with a throat portion of the venturi tube, wherein a flange portion is provided on an outer periphery of the throat portion of the venturi tube, and the foam concentrate solution is supplied to the flange portion. A foam mixing device having a mouth.
装置を設けた泡消火設備において、前記泡混合装置が、
ベンチュリー管のスロート部の外周に鍔部を有し、該鍔
部に前記スロート部に連通する泡原液供給口を有してな
り、又、該鍔部が前記両配管のフランジ部により挟持さ
れていることを特徴とする泡消火設備。2. In a foam fire extinguishing facility provided with a foam mixing device between a primary side pipe and a secondary side pipe, the foam mixing apparatus comprises:
The venturi tube has a flange on the outer periphery of the throat portion, the flange portion has a foam concentrate supply port communicating with the throat portion, and the flange portion is sandwiched by the flange portions of the two pipes. Foam fire extinguishing equipment, characterized in that:
側及び出口側を夫々一次側配管及び二次側配管に挿入せ
しめたことを特徴とする請求項２記載の泡消火設備。3. The foam fire extinguishing equipment according to claim 2, wherein the inlet side and the outlet side of the venturi tube of the foam mixing apparatus are inserted into a primary side pipe and a secondary side pipe, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07485993A JP3357959B2 (en) | 1993-03-31 | 1993-03-31 | Foam fire extinguishing equipment and its foam mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07485993A JP3357959B2 (en) | 1993-03-31 | 1993-03-31 | Foam fire extinguishing equipment and its foam mixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06285180A JPH06285180A (en) | 1994-10-11 |
| JP3357959B2 true JP3357959B2 (en) | 2002-12-16 |
Family
ID=13559475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07485993A Expired - Lifetime JP3357959B2 (en) | 1993-03-31 | 1993-03-31 | Foam fire extinguishing equipment and its foam mixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3357959B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5795517A (en) * | 1996-05-03 | 1998-08-18 | Owens-Corning Canada | Collection and deposition of chopped fibrous strands for formation into non-woven webs of bonded chopped fibers |
| WO2006065077A1 (en) * | 2004-12-15 | 2006-06-22 | Kil-Soo Joo | Fire protection foam proportioner with constant mixing ratio |
| JP7221103B2 (en) * | 2019-03-25 | 2023-02-13 | 能美防災株式会社 | line proportioner |
-
1993
- 1993-03-31 JP JP07485993A patent/JP3357959B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06285180A (en) | 1994-10-11 |
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