JP2016042769A - Bus duct device - Google Patents

Bus duct device Download PDF

Info

Publication number
JP2016042769A
JP2016042769A JP2014166279A JP2014166279A JP2016042769A JP 2016042769 A JP2016042769 A JP 2016042769A JP 2014166279 A JP2014166279 A JP 2014166279A JP 2014166279 A JP2014166279 A JP 2014166279A JP 2016042769 A JP2016042769 A JP 2016042769A
Authority
JP
Japan
Prior art keywords
bus duct
inspection
cover
flame
inspection cover
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.)
Granted
Application number
JP2014166279A
Other languages
Japanese (ja)
Other versions
JP6376893B2 (en
Inventor
正行 中島
Masayuki Nakajima
正行 中島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2014166279A priority Critical patent/JP6376893B2/en
Publication of JP2016042769A publication Critical patent/JP2016042769A/en
Application granted granted Critical
Publication of JP6376893B2 publication Critical patent/JP6376893B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Installation Of Bus-Bars (AREA)

Abstract

PROBLEM TO BE SOLVED: To solve such a problem that, when a flame enters inside a bus duct or the flame is generated from the inside of the bus duct, it is difficult to prevent the flame from being ejected from the inside of the bus duct.SOLUTION: A bus duct device includes: a bus duct 1 in which an inspection port 11 is provided in a predetermined part; an inspection cover 2 for blocking the inspection port 11; a flame outflow prevention member which is provided in an inspection cover installation part and prevents a flame generated from the inside of the bus duct from being discharged from the inspection port to the outside, for example, a cover reinforcement member 3 which prevents the inspection cover 2 from being deformed due to heat.SELECTED DRAWING: Figure 2

Description

本発明はバスダクト装置に関し、特に耐火性を向上したバスダクト装置に関するものである。   The present invention relates to a bus duct device, and more particularly to a bus duct device with improved fire resistance.

従来のビルやマンション、工場・発電所等の大きな建物における壁や床等の開口部を貫通するバスダクトの防火構造として、「床面や壁面の端部から固定具（３）を設置した上に耐火仕切材（４）をバスダクト（１）を囲むように充填し、更にこれらの隙間に耐熱シール材を充填するだけで耐熱性や防火性に優れた防火構造を得ることができ、従来品のように耐火仕切材を複数段必要としないため安価に製造可能なものである」ものが開示されている（特許文献１参照）。   As a fire prevention structure for bus ducts that penetrate the openings of walls and floors in large buildings such as conventional buildings, condominiums, factories, and power plants, “Fixing fixture (3) is installed from the end of the floor or wall. A fire-proof structure excellent in heat resistance and fire-proof property can be obtained simply by filling the fire-resistant partition material (4) so as to surround the bus duct (1), and further filling a heat-resistant sealing material in these gaps. Thus, it is possible to manufacture at low cost because a plurality of fireproof partition materials are not required (see Patent Document 1).

特開２００５−１３７１９４号公報（第６〜７頁、図１〜図２）JP-A-2005-137194 (pages 6-7, FIGS. 1-2)

上記のような従来のものはバスダクト貫通部における防火性などが向上されるものの、炎がバスダクト内部に侵入し、もしくは炎がバスダクト内部から発生した場合、内部からの炎がバスダクトの点検口部分から噴出するのを防ぐことが困難であるという問題があった。   Although the conventional type as described above improves the fire resistance in the bus duct penetration part, etc., if a flame penetrates the inside of the bus duct or a flame is generated from inside the bus duct, the flame from the inside is emitted from the inspection port portion of the bus duct. There was a problem that it was difficult to prevent ejection.

本発明は上記のような問題を解決するためになされたもので、バスダクト内部から発生した炎の噴出を防ぐことができる耐火性の向上されたバスダクト装置を得ることを目的としている。   The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a bus duct device with improved fire resistance that can prevent the ejection of a flame generated from the inside of the bus duct.

本発明に係るバスダクト装置は、所定部に点検口が設けられたバスダクトと、前記点検口を塞ぐ点検カバーと、前記点検カバーの設置部に設けられ前記バスダクトの内部から発生した炎が前記点検口から外部に放出するのを防止する炎流出防止部材と、を備えるようにしたものである。   The bus duct device according to the present invention includes a bus duct provided with an inspection port at a predetermined portion, an inspection cover that closes the inspection port, and a flame generated from the inside of the bus duct provided at an installation portion of the inspection cover. And a flame outflow prevention member for preventing discharge from the outside.

本発明によれば、バスダクトの点検口を塞ぐ点検カバーの設置部に、前記炎流出防止部材を備えるようにしたことにより、バスダクトの内部から発生した炎の点検口からの放出が防止されバスダクトの耐火性が向上される。また、既設のバスダクトに対して適用することが容易であるため、バスダクトの取替が不要で、作業時間や費用も低減しつつ耐火性能を向上できる。   According to the present invention, the flame outflow prevention member is provided in the installation portion of the inspection cover that closes the inspection opening of the bus duct, thereby preventing the flame generated from the inside of the bus duct from being released from the inspection opening. Fire resistance is improved. Moreover, since it is easy to apply to the existing bus duct, the replacement of the bus duct is unnecessary, and the fire resistance can be improved while reducing the working time and cost.

本発明の実施の形態１によるバスダクト装置の要部を示す斜視図である。It is a perspective view which shows the principal part of the bus duct apparatus by Embodiment 1 of this invention. 図１の断面位置Ｂにおける構成を矢印Ａ方向から見た要部断面図である。It is principal part sectional drawing which looked at the structure in the cross-sectional position B of FIG. 1 from the arrow A direction. 本発明の実施の形態２によるバスダクト装置を示す要部断面図である。It is principal part sectional drawing which shows the bus duct apparatus by Embodiment 2 of this invention. 本発明の実施の形態３によるバスダクト装置を示す要部断面図である。It is principal part sectional drawing which shows the bus duct apparatus by Embodiment 3 of this invention. 本発明の実施の形態４によるバスダクト装置の要部を示す斜視図である。It is a perspective view which shows the principal part of the bus duct apparatus by Embodiment 4 of this invention. 図５の断面位置Ｂにおける構成を矢印Ａ方向から見た要部断面図である。It is principal part sectional drawing which looked at the structure in the cross-sectional position B of FIG. 5 from the arrow A direction. 本発明の実施の形態５によるバスダクト装置の要部を示す斜視図である。It is a perspective view which shows the principal part of the bus duct apparatus by Embodiment 5 of this invention. 図７の断面位置Ｂにおける構成を矢印Ａ方向から見た要部断面図である。It is principal part sectional drawing which looked at the structure in the cross-sectional position B of FIG. 7 from the arrow A direction. 本発明の実施の形態２、３、５における耐火材の変形例としての耐火パッキンを示す図である。It is a figure which shows the fireproof packing as a modification of the fireproof material in Embodiment 2, 3, and 5 of this invention.

実施の形態１．
図１は本発明の実施の形態１によるバスダクト装置の要部を示す斜視図、図２は図１に示された断面位置Ｂを矢印Ａ方向から見た要部断面図である。図において、バスダクト装置は、筒状のバスダクト１と、バスダクト１の適宜の箇所に設けられたここでは四角形の点検口１１を塞ぐ点検カバー２と、点検カバー２の背面側に溶接またはボルト止め（図示省略）で固定され該点検カバー２が熱によって変形するのを防止するカバー補強部材３からなっている。カバー補強部材３は断面Ｌ字状で、バスダクト１に形成された点検口１１の内周部に沿うように一体物または複数の部材を組み合わせて四角形の額縁状ないしは環または枠状に形成され、断面Ｌ字状の一片が点検カバー２の背面側に密着するように固定されている。なお、この例では、バスダクト１は壁Ｗを貫通するように設置されている。また、点検カバー２の外周部は点検口１１の上面から蓋をするように取り付けられ複数のボルト１２で点検口１１の周縁部に密着して固定されている。 Embodiment 1 FIG.
FIG. 1 is a perspective view showing a main part of a bus duct device according to Embodiment 1 of the present invention, and FIG. 2 is a main part cross-sectional view of the cross-sectional position B shown in FIG. In the figure, the bus duct device includes a cylindrical bus duct 1, an inspection cover 2 provided at an appropriate location of the bus duct 1, which covers a rectangular inspection port 11, and welding or bolting to the back side of the inspection cover 2 ( The inspection cover 2 is fixed by a cover reinforcement member 3 that is prevented from being deformed by heat. The cover reinforcing member 3 has an L-shaped cross section and is formed in a rectangular frame shape or a ring or a frame shape by combining a single member or a plurality of members along the inner peripheral portion of the inspection port 11 formed in the bus duct 1. A piece of L-shaped cross section is fixed so as to be in close contact with the back side of the inspection cover 2. In this example, the bus duct 1 is installed so as to penetrate the wall W. Further, the outer peripheral portion of the inspection cover 2 is attached so as to cover the upper surface of the inspection port 11 and is fixed in close contact with the peripheral portion of the inspection port 11 with a plurality of bolts 12.

上記のように構成された実施の形態１においては、点検カバー２にカバー補強部材３を溶接またはボルト止めで固定することにより強度を持たせており、該カバー補強部材３がバスダクト１の内部から発生した炎が点検口１１から外部に放出するのを防止する炎流出防止部材を構成している。これにより火災によってバスダクト１が熱の影響を受けても、強固な点検カバー２とバスダクト１とが接続されていることにより、熱膨張によるバスダクト１や点検カバー２の曲げを抑制することが可能となる。これによりバスダクト１と点検カバー２が変形しないため、バスダクト１と点検カバー２との間に隙間ができず、バスダクト内部からの炎が外部に噴出しない。   In the first embodiment configured as described above, the strength is provided by fixing the cover reinforcing member 3 to the inspection cover 2 by welding or bolting, and the cover reinforcing member 3 is provided from the inside of the bus duct 1. A flame outflow prevention member is configured to prevent the generated flame from being discharged from the inspection port 11 to the outside. As a result, even if the bus duct 1 is affected by heat due to a fire, it is possible to suppress bending of the bus duct 1 and the inspection cover 2 due to thermal expansion by connecting the strong inspection cover 2 and the bus duct 1. Become. Thereby, since the bus duct 1 and the inspection cover 2 are not deformed, a gap is not formed between the bus duct 1 and the inspection cover 2, and flame from the inside of the bus duct is not ejected to the outside.

このように実施の形態１によれば、バスダクト１の内部から発生した炎が点検口１１からバスダクト１の外部に放出するのを防止する炎流出防止部材としての、断面Ｌ字状で、バスダクト１に形成された点検口１１の内周部に沿うように一体物または複数の部材を組み合わせて四角形の額縁状ないしは環または枠状に形成され、断面Ｌ字状の一片が点検カバー２の背面側に密着するように固定されたカバー補強部材３を備えるようにしたことにより、熱膨張によるバスダクト１や点検カバー２の曲げ変形を抑制することが可能となり、バスダクト１の内部からバスダクト外部への炎の噴出を防止することができる。また、既設のバスダクトに対して同様に構成することも容易であり、既設のバスダクトの耐火性能を付加することが可能であるため、バスダクトの取替が不要となり、作業時間や費用の低減を図ることもできる。   Thus, according to the first embodiment, the bus duct 1 has an L-shaped cross section as a flame outflow prevention member that prevents the flame generated from the inside of the bus duct 1 from being released from the inspection port 11 to the outside of the bus duct 1. A single-piece or a plurality of members are combined so as to be along the inner periphery of the inspection port 11 formed in the shape of a square frame or ring or frame, and a piece of L-shaped cross section is the back side of the inspection cover 2 By providing the cover reinforcing member 3 fixed so as to be in close contact with the gas, it becomes possible to suppress bending deformation of the bus duct 1 and the inspection cover 2 due to thermal expansion, and a flame from the inside of the bus duct 1 to the outside of the bus duct. Can be prevented. In addition, it is easy to configure the existing bus duct in the same way, and it is possible to add the fire resistance performance of the existing bus duct, so that it is not necessary to replace the bus duct, thereby reducing work time and cost. You can also.

実施の形態２．
図３は本発明の実施の形態２によるバスダクト装置を示す要部断面図であり、図１の断面位置Ｂにおける矢印Ａ方向から見た要部断面図に相当する。また、図９は本発明の実施の形態２（実施の形態３、５）における耐火材の変形例としての耐火パッキンを示す図であり、（ａ）は上面図、（ｂ）は側面断面図である。図において、点検カバー２に固定されたカバー補強部材３の設置位置よりも外側の外周縁部における点検口１１の上面との対向面には、ここでは板状で四角形のリング状に形成された耐火材４が介装され、点検カバー２の外周縁部はその耐火材４をバスダクト１の点検口１１の周縁部との間に挟み込むように複数のボルト１２によって点検口１１の周縁部に固定されている。なお、耐火材４としては例えば市販されている各種の耐火性材料からなるものなどを適宜選択して用いることができる。その他の構成は実施の形態１と同様である。 Embodiment 2. FIG.
3 is a cross-sectional view of a main part showing a bus duct device according to Embodiment 2 of the present invention, and corresponds to a cross-sectional view of the main part when viewed from the direction of arrow A at the cross-sectional position B in FIG. Moreover, FIG. 9 is a figure which shows the fireproof packing as a modification of the fireproof material in Embodiment 2 (Embodiment 3, 5) of this invention, (a) is a top view, (b) is side surface sectional drawing. It is. In the figure, on the surface facing the upper surface of the inspection port 11 at the outer peripheral edge outside the installation position of the cover reinforcing member 3 fixed to the inspection cover 2, a plate-like and rectangular ring shape is formed here. The refractory material 4 is interposed, and the outer peripheral edge portion of the inspection cover 2 is fixed to the peripheral portion of the inspection port 11 by a plurality of bolts 12 so that the refractory material 4 is sandwiched between the peripheral portion of the inspection port 11 of the bus duct 1. Has been. In addition, as the refractory material 4, for example, those made of various refractory materials that are commercially available can be appropriately selected and used. Other configurations are the same as those of the first embodiment.

上記のように構成された実施の形態２においては、カバー補強部材３が点検カバー２に溶接（またはボルト止め）で固定されていることにより点検カバー２の強度が向上され、これにより火災によってバスダクト１が熱の影響を受けても、強固な点検カバー２とバスダクト１とが複数のボルト１２によって接続されていることにより、熱膨張によるバスダクト１の曲げ変形を抑制することが可能となると共に、バスダクト１と点検カバー２との間に耐火材４が挿入されていることで、バスダクト１と点検カバー２との結合部分に熱による変形が生じたとしても、バスダクト１と点検カバー２の間の隙間の発生が抑制されるため、バスダクト１の内部からの炎が外部に噴出しない。   In the second embodiment configured as described above, the strength of the inspection cover 2 is improved by fixing the cover reinforcing member 3 to the inspection cover 2 by welding (or bolting). Even if 1 is affected by heat, the rigid inspection cover 2 and the bus duct 1 are connected by a plurality of bolts 12, thereby making it possible to suppress bending deformation of the bus duct 1 due to thermal expansion. Since the fireproof material 4 is inserted between the bus duct 1 and the inspection cover 2, even if the joint portion between the bus duct 1 and the inspection cover 2 is deformed by heat, the space between the bus duct 1 and the inspection cover 2. Since generation | occurrence | production of a clearance gap is suppressed, the flame from the inside of the bus duct 1 does not spout outside.

なお、耐火材４は図９の変形例に示すように、耐火材４０を芯材として、その周囲を耐火シート４１で覆い、ハトメなどの締結具４２を使って複数個所で固定した耐火パッキン４Ａに変更しても良い。この場合、耐火材４を単独で用いる場合よりも耐火性能の向上を図ることが可能となる。
上記実施の形態２によれば、実施の形態１よりも耐火性能が向上され、バスダクト１の点検口１１から外部への炎の噴出をより効果的に防止することができる。また、本発明を既設バスダクトに適用することで新たにバスダクトを設置することなく、耐火性能を持たせることが可能となる。また、耐火性能を上げるための耐火材４の代わりに、図９のような耐火パッキン４Ａを使用することで耐火性能の向上を図ることが可能となる。 As shown in the modification of FIG. 9, the refractory material 4 has a refractory material 40 as a core, the periphery thereof is covered with a refractory sheet 41, and the refractory packing 4 </ b> A is fixed at a plurality of locations using fasteners 42 such as eyelets. You may change to In this case, it is possible to improve the fireproof performance as compared with the case where the fireproof material 4 is used alone.
According to the second embodiment, the fire resistance performance is improved as compared with the first embodiment, and it is possible to more effectively prevent the flame from being ejected from the inspection port 11 of the bus duct 1 to the outside. Further, by applying the present invention to an existing bus duct, it is possible to provide fire resistance without newly installing a bus duct. Further, it is possible to improve the fire resistance by using the fireproof packing 4A as shown in FIG. 9 instead of the fireproof material 4 for improving the fire resistance.

実施の形態３．
図４は本発明の実施の形態３によるバスダクト装置を示す要部断面図であり、図１の断面位置Ｂにおける矢印Ａ方向から見た要部断面図に相当する。図において、バスダクト１の点検口１１は、図における下端にフランジ部１３ａを有する筒状で、その筒状部分の上端に点検用開口部１３ｂが設けられ、下端のフランジ部１３ａがバスダクト１の点検用の開口部にボルト１４で固定されたベース１３と、皿状の点検カバー２を点検用開口部１３ｂとの間に通気用の隙間ができるように取付けるための柱状の複数のカバー保持部材１５とを用いて構成されている。この実施の形態３における、バスダクト１の内部から発生した炎が点検口１１から外部に放出するのを防止する炎流出防止部材は、前記通気用の隙間に沿うように四角形のリング状に形成され、前記通気用の隙間を埋めるように挿入された耐火材４Ｂと、耐火材４Ｂを点検カバー２の背面側に保持する耐火材保持部材４３からなっている。耐火材保持部材４３は点検カバー２に対して溶接またはボルト止め（図示省略）されており、耐火材４Ｂがバスダクト１内に落下することを防止している。 Embodiment 3 FIG.
4 is a cross-sectional view of a main part showing a bus duct apparatus according to Embodiment 3 of the present invention, and corresponds to a cross-sectional view of the main part when viewed from the direction of arrow A at the cross-sectional position B in FIG. In the figure, the inspection port 11 of the bus duct 1 has a cylindrical shape having a flange portion 13a at the lower end in the figure, an inspection opening 13b is provided at the upper end of the cylindrical portion, and the flange portion 13a at the lower end is inspected for the bus duct 1. A plurality of columnar cover holding members 15 for attaching the base 13 fixed to the opening for the bolts with the bolts 14 and the dish-shaped inspection cover 2 so as to create a ventilation gap between the inspection opening 13b. It is comprised using. In this third embodiment, the flame outflow prevention member for preventing the flame generated from the inside of the bus duct 1 from being released from the inspection port 11 to the outside is formed in a rectangular ring shape along the ventilation gap. The refractory material 4B is inserted so as to fill the gap for ventilation, and the refractory material holding member 43 for holding the refractory material 4B on the back side of the inspection cover 2. The refractory material holding member 43 is welded or bolted (not shown) to the inspection cover 2 to prevent the refractory material 4B from falling into the bus duct 1.

上記のように構成された実施の形態３においては、バスダクト１と点検カバー２との間の隙間が無くなるため、バスダクト１の内部からの炎が外部に噴出しない。尚、本発明では換気口を塞いでしまうこととなるが、壁から遠い場所に換気口が設けられていれば、ダクト内での換気量は確保できるため問題ない。なお、耐火材４Ｂは図９の変形例に示す耐火パッキン４Ａに変更しても良い。
上記実施の形態３によれば、バスダクト１の点検口１１から外部への炎の噴出を効果的に防止することができる。また、既設のバスダクトに適用することで新たにバスダクトを設置することなく、耐火性能を持たせることが可能となる。 In the third embodiment configured as described above, since there is no gap between the bus duct 1 and the inspection cover 2, flame from the inside of the bus duct 1 does not jet out. In the present invention, the ventilation port is blocked, but if the ventilation port is provided in a place far from the wall, there is no problem because the ventilation amount in the duct can be secured. In addition, you may change the refractory material 4B to the refractory packing 4A shown in the modification of FIG.
According to the third embodiment, it is possible to effectively prevent the flame from being ejected from the inspection port 11 of the bus duct 1 to the outside. Further, by applying to an existing bus duct, it is possible to provide fire resistance without newly installing a bus duct.

実施の形態４．
図５は本発明の実施の形態４によるバスダクト装置の要部を示す斜視図、図６は図５の断面位置Ｂにおける構成を矢印Ａ方向から見た要部断面図である。図において、バスダクト１の点検口１１を塞いで複数のボルト１２で点検口１１の周縁部に密着固定された点検カバー２の周囲には、点検カバー２の全体を幅広く覆うと共に、バスダクト１の周囲に巻き付けられた耐火シート５と、耐火シート５をバスダクト１の周囲に密着するように固定する金属製の固定バンド５１からなる炎流出防止部材が設けられている。耐火シート５は特に限定されるものではないが、例えば市販されている防炎シート、不燃シート、耐熱シートなど、耐火性を有するシート状で可撓性を有するものを適宜選択して用いることができる。 Embodiment 4 FIG.
FIG. 5 is a perspective view showing a main part of a bus duct device according to Embodiment 4 of the present invention, and FIG. 6 is a main part cross-sectional view of the configuration at the cross-sectional position B of FIG. In the figure, the entire inspection cover 2 is covered widely around the inspection cover 2 which is closed and fixed to the peripheral portion of the inspection opening 11 with a plurality of bolts 12 by closing the inspection opening 11 of the bus duct 1. A flame outflow prevention member comprising a fireproof sheet 5 wound around the metal and a metal fixing band 51 for fixing the fireproof sheet 5 so as to be in close contact with the periphery of the bus duct 1 is provided. The fireproof sheet 5 is not particularly limited. For example, a fireproof sheet, such as a commercially available flameproof sheet, non-combustible sheet, heat resistant sheet, or the like, which is flexible and suitably used may be used. it can.

上記のように構成された実施の形態４においては、バスダクト１の点検カバー２の外側が固定バンド５１で固定された耐火シート５で完全に包囲されていることにより、熱によってバスダクト１が変形した場合でもバスダクト１の内部からの炎が耐火シート５によって遮断され、バスダクト１の外部へ噴出することが無くなる。
そのため、実施の形態４によれば、バスダクト１の点検口１１から外部への炎の噴出を効果的に防止することができる。また、既設のバスダクトに適用することで新たにバスダクトを設置することなく、既設バスダクトの耐火性能を改善することが可能となる。 In the fourth embodiment configured as described above, the outside of the inspection cover 2 of the bus duct 1 is completely surrounded by the fireproof sheet 5 fixed by the fixing band 51, so that the bus duct 1 is deformed by heat. Even in this case, the flame from the inside of the bus duct 1 is blocked by the fireproof sheet 5 and is not ejected to the outside of the bus duct 1.
Therefore, according to the fourth embodiment, it is possible to effectively prevent the flame from being ejected from the inspection port 11 of the bus duct 1 to the outside. Moreover, it becomes possible to improve the fireproof performance of the existing bus duct without installing a new bus duct by applying to the existing bus duct.

実施の形態５．
図７は本発明の実施の形態５によるバスダクト装置の要部を示す斜視図、図８は図７の断面位置Ｂにおける構成を矢印Ａ方向から見た要部断面図である。図において、バスダクト１の点検口１１を塞いでいる平板状の点検カバー２の外周囲部分には、四角形のリング状で、厚さが点検カバー２とほぼ同一の板状で内周面が点検カバー２の外周面と接するように形成された第１の耐火材４Ｃがバスダクト１の上面に設置されている。また、その点検カバー２と第１の耐火材４Ｃとの図における上面には四角形のリング状で、点検カバー２と第１の耐火材４Ｃの双方に跨るように形成された第２の耐火材４Ｄが載置され、ボルト１２によって点検カバー２と共にバスダクト１の点検口１１に固定されている。そして、点検カバー２、第１の耐火材４Ｃ、及び第２の耐火材４Ｄの全体を幅広く覆うと共に、バスダクト１の周囲に巻き付けられた耐火シート５が、バスダクト１の周囲に密着するように金属製の複数（ここでは４本）の固定バンド５１で固定されている。なお、この例では第１の耐火材４Ｃ、及び第２の耐火材４Ｄ、耐火シート５、及び固定バンド５１によって炎流出防止部材が構成されている。 Embodiment 5 FIG.
7 is a perspective view showing a main part of a bus duct device according to Embodiment 5 of the present invention, and FIG. 8 is a main part cross-sectional view of the configuration at the cross-sectional position B of FIG. In the figure, the outer peripheral portion of the flat inspection cover 2 that closes the inspection port 11 of the bus duct 1 is in the shape of a quadrangular ring and has the same thickness as the inspection cover 2 and the inner peripheral surface is inspected. A first refractory material 4 </ b> C formed so as to be in contact with the outer peripheral surface of the cover 2 is installed on the upper surface of the bus duct 1. Further, the upper surface of the inspection cover 2 and the first refractory material 4C in the figure is a quadrangular ring shape and is formed so as to straddle both the inspection cover 2 and the first refractory material 4C. 4D is mounted and fixed to the inspection port 11 of the bus duct 1 together with the inspection cover 2 by bolts 12. The inspection cover 2, the first refractory material 4 </ b> C, and the second refractory material 4 </ b> D are covered with a wide area, and the refractory sheet 5 wound around the bus duct 1 is attached to the metal around the bus duct 1. It is fixed with a plurality of (four in this case) fixing bands 51 made of the metal. In this example, the first refractory material 4C, the second refractory material 4D, the refractory sheet 5, and the fixed band 51 constitute a flame outflow prevention member.

上記のように構成された実施の形態５においては、バスダクト１と点検カバー２の隙間を隠すように第１、第２の耐火材４Ｃ、４Ｄを配置し、バスダクト１の周囲に耐火シート５を巻き付け、固定バンド５１で固定することにより、熱によってバスダクト１や点検カバー２が変形した場合でもバスダクト１の内部からの炎が第１、第２の耐火材４Ｃ、４Ｄと耐火シート５によって遮断され、バスダクト１の外部へ噴出することが無くなる。
そのため、実施の形態５によれば、バスダクト１の点検口１１から外部への炎の噴出を効果的に防止することができる。また、既設のバスダクトに適用することで新たにバスダクトを設置することなく、耐火性能を持たせることが可能となる。
尚、耐火性能を上げるため第１の耐火材４Ｃ、または第２の耐火材４Ｄの代わりに、図９のような耐火パッキン４Ａを使用することで耐火性能の向上を図ることが可能となる。 In the fifth embodiment configured as described above, the first and second refractory materials 4C and 4D are arranged so as to hide the gap between the bus duct 1 and the inspection cover 2, and the refractory sheet 5 is disposed around the bus duct 1. By winding and fixing with the fixing band 51, even when the bus duct 1 and the inspection cover 2 are deformed by heat, the flame from the inside of the bus duct 1 is blocked by the first and second refractory materials 4C and 4D and the refractory sheet 5. , It will not be ejected outside the bus duct 1.
Therefore, according to the fifth embodiment, it is possible to effectively prevent the flame from being ejected from the inspection port 11 of the bus duct 1 to the outside. Further, by applying to an existing bus duct, it is possible to provide fire resistance without newly installing a bus duct.
Note that it is possible to improve the fire resistance by using a fireproof packing 4A as shown in FIG. 9 instead of the first fireproof material 4C or the second fireproof material 4D in order to improve the fireproof performance.

なお、本発明は、その発明の範囲内において、各実施の形態の一部または全部を自由に組み合わせたり、各実施の形態を適宜、変形、省略することが可能である。例えば、点検口１１や点検カバー２の形状は四角形に限定されるものではない。   It should be noted that within the scope of the present invention, a part or all of each embodiment can be freely combined, or each embodiment can be appropriately modified or omitted. For example, the shape of the inspection port 11 and the inspection cover 2 is not limited to a quadrangle.

１ バスダクト、２ 点検カバー、３ カバー補強部材、４ 耐火材、
４Ａ 耐火パッキン、４Ｂ 耐火材、４Ｃ 第１の耐火材、４Ｄ 第２の耐火材、
５ 耐火シート、１１ 点検口、１２ ボルト、１３ ベース、１３ａ フランジ部、
１３ｂ 点検用開口部、１４ ボルト、１５ カバー保持部材、４０ 耐火材、
４１ 耐火シート、４２ 締結具、４３ 耐火材保持部材、５１ 固定バンド、Ｗ 壁。 1 Bus duct, 2 Inspection cover, 3 Cover reinforcement member, 4 Refractory material,
4A fireproof packing, 4B fireproof material, 4C first fireproof material, 4D second fireproof material,
5 fireproof sheet, 11 inspection port, 12 bolt, 13 base, 13a flange,
13b Inspection opening, 14 bolt, 15 cover holding member, 40 refractory material,
41 fireproof sheet, 42 fastener, 43 fireproof material holding member, 51 fixing band, W wall.

Claims (7)

所定部に点検口が設けられたバスダクトと、前記点検口を塞ぐ点検カバーと、前記点検カバーの設置部に設けられ前記バスダクトの内部から発生した炎が前記点検口から外部に放出するのを防止する炎流出防止部材と、を備えたことを特徴とするバスダクト装置。   A bus duct provided with an inspection port at a predetermined portion, an inspection cover that closes the inspection port, and a flame generated from the inside of the bus duct that is provided at an installation portion of the inspection cover is prevented from being released from the inspection port to the outside. And a flame outflow prevention member. 前記炎流出防止部材は、前記バスダクトに形成された前記点検口の内周面に沿うように形成されて前記点検カバーに固定され該点検カバーの熱による変形を防止するカバー補強部材からなることを特徴とする請求項１記載のバスダクト装置。   The flame outflow prevention member is formed of a cover reinforcing member that is formed along the inner peripheral surface of the inspection port formed in the bus duct, is fixed to the inspection cover, and prevents deformation of the inspection cover due to heat. The bus duct apparatus according to claim 1, wherein 前記カバー補強部材は、断面Ｌ字状で、全形が額縁状または環状に形成されていることを特徴とする請求項２記載のバスダクト装置。   3. The bus duct device according to claim 2, wherein the cover reinforcing member has an L-shaped cross section, and is entirely formed in a frame shape or an annular shape. 前記点検カバーの外周縁部と前記点検口の周縁部との間に耐火材が介装されていることを特徴とする請求項２または請求項３記載のバスダクト装置。   The bus duct device according to claim 2 or 3, wherein a refractory material is interposed between an outer peripheral edge portion of the inspection cover and a peripheral edge portion of the inspection opening. 前記炎流出防止部材は、前記点検口と前記点検カバーとの隙間に該隙間に沿って介装され該点検カバーの熱による変形に関わらず該隙間を閉塞する耐火材からなることを特徴とする請求項１記載のバスダクト装置。   The flame outflow prevention member is formed of a refractory material that is interposed along the gap between the inspection port and the inspection cover and closes the gap regardless of heat deformation of the inspection cover. The bus duct apparatus according to claim 1. 前記炎流出防止部材は、前記点検カバーの設置部の外面全体を覆うと共に前記バスダクトの外側周囲に密着するように巻き付けられた耐火シートからなることを特徴とする請求項１記載のバスダクト装置。   2. The bus duct apparatus according to claim 1, wherein the flame outflow prevention member is formed of a fireproof sheet that is wound so as to cover the entire outer surface of the installation portion of the inspection cover and to be in close contact with the outer periphery of the bus duct. 前記点検カバーの外周端面に沿う枠状に形成され、前記点検カバーと前記バスダクトの外面との間の隙間を塞ぐように配設された耐火材を備えたことを特徴とする請求項６記載のバスダクト装置。   The refractory material which is formed in the shape of a frame along the outer peripheral end surface of the inspection cover and is disposed so as to close the gap between the inspection cover and the outer surface of the bus duct is provided. Bus duct device.
JP2014166279A 2014-08-19 2014-08-19 Bus duct device Active JP6376893B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014166279A JP6376893B2 (en) 2014-08-19 2014-08-19 Bus duct device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014166279A JP6376893B2 (en) 2014-08-19 2014-08-19 Bus duct device

Publications (2)

Publication Number Publication Date
JP2016042769A true JP2016042769A (en) 2016-03-31
JP6376893B2 JP6376893B2 (en) 2018-08-22

Family

ID=55592278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014166279A Active JP6376893B2 (en) 2014-08-19 2014-08-19 Bus duct device

Country Status (1)

Country Link
JP (1) JP6376893B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018201630A (en) * 2017-05-31 2018-12-27 三菱電機株式会社 Fireproof structure of compartment penetration part

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4615556Y1 (en) * 1968-07-18 1971-05-31
JPS50150800U (en) * 1974-05-30 1975-12-15
JPS5264396U (en) * 1975-11-07 1977-05-12
JPS53123175U (en) * 1977-03-09 1978-09-30
JPS5457694A (en) * 1977-10-18 1979-05-09 Furukawa Electric Co Ltd:The Cable line
JP2008031800A (en) * 2006-07-31 2008-02-14 Sekisui Chem Co Ltd Duct

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4615556Y1 (en) * 1968-07-18 1971-05-31
JPS50150800U (en) * 1974-05-30 1975-12-15
JPS5264396U (en) * 1975-11-07 1977-05-12
JPS53123175U (en) * 1977-03-09 1978-09-30
JPS5457694A (en) * 1977-10-18 1979-05-09 Furukawa Electric Co Ltd:The Cable line
JP2008031800A (en) * 2006-07-31 2008-02-14 Sekisui Chem Co Ltd Duct

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018201630A (en) * 2017-05-31 2018-12-27 三菱電機株式会社 Fireproof structure of compartment penetration part

Also Published As

Publication number Publication date
JP6376893B2 (en) 2018-08-22

Similar Documents

Publication Publication Date Title
JP6830804B2 (en) Fireseal construction for aircraft and aircraft
KR101466271B1 (en) Connecting Structure of Vertical Exhaust Pipe in Dry-type Air duct System
US11441810B2 (en) Pre-fabricated modular fire-rated conduit assembly
JP2014148998A (en) Seal structure
GB2515649A (en) Fire resistant downlight
JP2010536005A (en) Ventilation duct insulation for wall / ceiling through-holes
JP6376893B2 (en) Bus duct device
EP1960058B1 (en) Fire damper barrier flange
JP4827621B2 (en) Fireproof coating structure for seismic isolation devices
JP6348320B2 (en) Refractory material and fire barrier wall structure
US20180259095A1 (en) Line feedthrough for feeding lines through a component
JP2011058257A (en) Protective apparatus for building
WO2019219579A1 (en) Firestop penetration device and sealing system
JP2008510943A (en) Fire protection structure for bulkhead installation structure
JP6394106B2 (en) Fire spread prevention device for bus duct penetration
JP6895805B2 (en) Fireproof structure of compartment penetration
JP5848048B2 (en) Fireproof smokeproof box and fireproof smokeproof structure
JP2018201630A5 (en)
US10294660B2 (en) Line leadthrough for the leadthrough of lines through a component
JP2019019832A (en) Corner piece for duct
ITMI20102143A1 (en) MUFFLER DEVICE, PARTICULARLY FOR FANS OF AERO-EXCHANGER AND SIMILAR.
JP2011184940A (en) Airtight duct structure of hollow wall and through duct member used for the structure
KR20170003564U (en) Fireproofing apparatus and connection tube therefor
JP2017089290A (en) Fire resistive covering structure and fire resistive covering method
JP2016056855A (en) Piping module and penetration part structure

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20170720

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20180411

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20180417

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180524

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20180626

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20180724

R150 Certificate of patent or registration of utility model

Ref document number: 6376893

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250