JPH0652133B2 - Gallery - Google Patents

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Publication number
JPH0652133B2
JPH0652133B2 JP63096761A JP9676188A JPH0652133B2 JP H0652133 B2 JPH0652133 B2 JP H0652133B2 JP 63096761 A JP63096761 A JP 63096761A JP 9676188 A JP9676188 A JP 9676188A JP H0652133 B2 JPH0652133 B2 JP H0652133B2
Authority
JP
Japan
Prior art keywords
plate
gallery
sound
ventilation
air
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 - Fee Related
Application number
JP63096761A
Other languages
Japanese (ja)
Other versions
JPH01269852A (en
Inventor
俊憲 青木
清剛 里見
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.)
NGK Insulators Ltd
Obayashi Corp
Original Assignee
NGK Insulators Ltd
Obayashi 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 NGK Insulators Ltd, Obayashi Corp filed Critical NGK Insulators Ltd
Priority to JP63096761A priority Critical patent/JPH0652133B2/en
Publication of JPH01269852A publication Critical patent/JPH01269852A/en
Publication of JPH0652133B2 publication Critical patent/JPH0652133B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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  • Ventilation (AREA)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)

Description

【発明の詳細な説明】 《産業上の利用分野》 本発明は空気調和装置および換気装置の還気,吸気ガラ
リ等が居室空間へ及ぼす騒音ならびにスペースを効率的
に低減したガラリの防音装置に関する。
Description: TECHNICAL FIELD The present invention relates to a soundproofing device for a gallery that efficiently reduces noise and space that return air of an air conditioner and a ventilation device, intake louver, and the like exert on a living room space.

《従来の技術》 例えば事務所ビルの空調換気装置において代表的な各階
別空調方式では、機械室を還気チャンバーとして利用す
る場合が多い。
<< Prior Art >> For example, in an air conditioning system for each floor, which is a typical air conditioning ventilation system for office buildings, the machine room is often used as a return air chamber.

即ち、機械室の壁面に通気ガラリを取り付けてレタン空
気を吸い込むようにしているのであるが、このガラリが
機械室の騒音および吸込み音を素通しにすることを避
け、機械室側に消音装置や消音壁を設けたチャンバーを
構成しているのである。その例を第3図に示す。図にお
いて、上下のスラブ1,2および外壁3と仕切壁4に囲
まれる機械室5がある。
In other words, the ventilation gallery is attached to the wall of the machine room to suck in the retin air.However, this gallery avoids the noise and suction noise of the machine room from passing through, and the silencer or sound absorber on the machine room side. It constitutes a chamber with walls. An example thereof is shown in FIG. In the figure, there is a machine room 5 surrounded by upper and lower slabs 1, 2 and an outer wall 3 and a partition wall 4.

機械室5には集塵機6とパッケージ型空調機7が収めら
れている。外壁3の一部には外気取入口8が設けられ、
パッケージ型空調機7から居室9への空調ダクト10は
仕切壁4の上部を通り、居室9の天井裏へ延びている。
The machine room 5 contains a dust collector 6 and a package type air conditioner 7. An outside air intake 8 is provided in a part of the outer wall 3,
An air conditioning duct 10 from the package type air conditioner 7 to the living room 9 passes through the upper part of the partition wall 4 and extends to the back of the ceiling of the living room 9.

そして、仕切壁4の一部には居室9と機械室5との出入
口を兼ね得るドア型のガラリが設けられている。このガ
ラリは居室9内から機械室5内の集塵機6へ還気するた
めの還気ガラリになっている。即ち、レタンドアガラリ
11を形成している。
A door-type louver that can also serve as a doorway between the living room 9 and the machine room 5 is provided in a part of the partition wall 4. This gallery is a return air gallery for returning air from the living room 9 to the dust collector 6 in the machine room 5. That is, the red gallery 11 is formed.

更に、レタンドアガラリ11の内面(機械室5側)から
内側へ更に少し隔てた所において床スラブ2から天井近
くまで垂直に立ち上げた消音壁12が設けられている。
Further, a muffling wall 12 which is vertically erected from the floor slab 2 to near the ceiling is provided at a position slightly further inward from the inner surface (machine room 5 side) of the red paper gallery 11.

居室9から機械室5へ吸い込まれた空気はレタンドアガ
ラリ11を抜けて消音壁12に当り、或いは消音壁12
表面に沿ってその頂部の方へ上昇し、集塵機6に吸引さ
れる。
The air sucked from the living room 9 into the machine room 5 passes through the redundant gallery 11 and hits the sound deadening wall 12, or the sound deadening wall 12
It rises along its surface towards its top and is sucked into the dust collector 6.

《発明が解決しようとする課題》 従来の換気装置は叙述例の場合、消音壁12を使用して
いるが、消音壁の垂直方向長さを短くしてこれを上下か
ら交互に垂下し、又は立設した消音トラップとすること
もある。しかし、何れの場合にもレタンドアガラリ11
から集塵機迄の間に所要のスペースを必要としていた。
<Problem to be Solved by the Invention> In the case of the conventional example, the conventional ventilation device uses the sound deadening wall 12, but the length in the vertical direction of the sound deadening wall is shortened and the sound deadening wall is hung from the upper and lower sides alternately, or It may be a mute trap installed upright. However, in any case
It required a certain space from the dust collector to the dust collector.

消音壁12や消音トラップの大きさはレタンガラリの通
過風速を低減するために一定のガラリ面積を確保して通
風騒音を下げるので、小さくするにも限界があり、かな
りのスペースを費しているものである。居室9側の有効
スペースを少しでも多く確保したいとの要請に対応する
ため、本発明の目的は消音効果を減殺することなく消音
用のスペースが小さくて足りる機能を具備したガラリを
提供するにある。
The size of the sound deadening wall 12 and the sound deadening trap secures a certain louver area in order to reduce the passing wind speed of the retangular louver and lowers the ventilation noise, so there is a limit to how small it can be and it consumes a considerable amount of space. Is. In order to meet the demand to secure as much effective space as possible on the side of the living room 9, the object of the present invention is to provide a gallery having a function that the space for silencing is small without compromising the silencing effect. .

《課題を解決するための手段》 上記目的を達成するために、本発明に係るガラリは、外
面を金属板,プラスチック板等の遮音板で被覆し、通風
路面は金属繊維を圧縮成形した板状の金属繊維吸音板で
構成し、該遮音板と該吸音板との間にグラスウール等の
吸音材を充填して成る通気ダクトがガラリの通気経路延
長上に一体的に設けてなるのである。
<< Means for Solving the Problems >> In order to achieve the above object, the gallery according to the present invention has an outer surface covered with a sound insulating plate such as a metal plate or a plastic plate, and the ventilation path surface is a plate-shaped member formed by compression molding metal fibers The metal fiber sound-absorbing plate of No. 1 and a ventilation duct formed by filling a sound-absorbing material such as glass wool between the sound-insulating plate and the sound-absorbing plate are integrally provided on the extension of the ventilation path of the glass.

《作用》 グラスウール繊維などの吸音材を板状に圧縮形成した金
属繊維吸音板で通風路面を形成するため、グラスウール
繊維等の減音効果を充分に維持したままの通風ダクト等
を備えたガラリを構成することが可能になり、ガラリ内
側の突出長をかなり小さくすることを可能にする。
<Function> Since the ventilation path surface is formed by the metal fiber sound absorbing plate that is formed by compressing the sound absorbing material such as glass wool fiber into a plate shape, a gallery with a ventilation duct while maintaining the sound reduction effect of the glass wool fiber etc. It is possible to configure, and it is possible to significantly reduce the protruding length inside the gallery.

《実施例》 以下、本発明の好適な実施例について図面を参照にして
詳細に説明する。なお、同一符号は同一物又は相当物で
ある。
<Example> Hereinafter, a preferred example of the present invention will be described in detail with reference to the drawings. The same reference numerals are the same or equivalent.

第1図は第1の実施例で、この還気ガラリ13はドア位
の大きさの板体中央部分が通風ガラリになっており、こ
のガラリに連通する縦長な長方形状通風開口14を裏面
に添設している。
FIG. 1 is a first embodiment, and this return air louver 13 has a ventilation louver at the central portion of the plate body having the size of a door, and a vertically long rectangular ventilation opening 14 communicating with this louver is provided on the back surface. It is attached.

この通風開口14は厚さ50mmのグラスウール15の表
面を板状に圧縮成形したアルミ繊維吸音板16(例えば
商品名NGKポアル)で通気路面を覆着構成した奥行き
30cmのダクト状であって、ガラリの上下方向中央位置
に対応する通風開口14背面から水平に正面方向へ延設
した整風翼17を具える。整風翼17の先端は断面半円
形に形成して通気抵抗を小さくしている。
The ventilation opening 14 is a duct shape with a depth of 30 cm in which the air passage surface is covered with an aluminum fiber sound absorbing plate 16 (for example, NGK PAL brand name) obtained by compression-molding the surface of glass wool 15 having a thickness of 50 mm. The air conditioning blade 17 is provided so as to extend horizontally from the back surface of the ventilation opening 14 corresponding to the center position in the vertical direction to the front direction. The tips of the air conditioning blades 17 are formed in a semicircular cross section to reduce ventilation resistance.

上記アルミ繊維吸音板16としては例示すれば、日本ガ
イシ株式会社で製品化している商品名「NGKポアル」
がある。これによれば、不織布面密度1100g/m2
板厚1.2mmのものがあるので、これらよって通風路面
を構成してグラスウール15を函体状に形成保持した通
風開口14を得ることができる。
The aluminum fiber sound absorbing plate 16 is, for example, a product name "NGK PAL" manufactured by NGK Insulators.
There is. According to this, the non-woven fabric surface density is 1100 g / m 2 ,
Since there is a plate having a plate thickness of 1.2 mm, it is possible to obtain the ventilation opening 14 in which the ventilation path surface is formed and the glass wool 15 is formed and held in the shape of a box.

居室側の空気は還気ガラリ13の中央から整風翼17で
上下方向に振り分けて通気路を長くし、還気ガラリ13
の上下方向へ流れる過程で吸音板16,グラスウール1
5で通気騒音が吸音,減音されながら還気ガラリ13の
各上下端へ抜け、機械室の還気取入口へ至る。この通気
路面に取り込まれ、グラスウール15中から外部へ通気
や騒音が漏れることのないように、通風開口14の外表
面は鉄板による遮音板18で構成しており、この遮音板
18の一部は整風翼17の芯材を兼ねている。機械室か
ら居室側へ抜ける騒音も通風開口14内で減音される。
その居室側の減音効果は概ね以下の表(1)の通りであ
る。
The air on the living room side is vertically distributed from the center of the return air louver 13 by the air conditioning blades 17 to lengthen the air passage, and the return air louver 13 is returned.
Sound absorbing board 16, glass wool 1 in the process of flowing vertically
At 5, the ventilation noise is absorbed and reduced while passing through the upper and lower ends of the return air louver 13 to reach the return air intake of the machine room. The outer surface of the ventilation opening 14 is formed of a sound insulating plate 18 made of an iron plate so that the air and noise are not leaked from the inside of the glass wool 15 to the outside, and a part of the sound insulating plate 18 is formed. It also serves as the core material of the rectifying blade 17. Noise that escapes from the machine room to the room side is also reduced in the ventilation opening 14.
The sound reduction effect on the room side is generally as shown in Table (1) below.

還気を居室の垂直方向において幅広く行うには、ガラリ
を縦長にするとよいので、第2の実施例を示す第2図の
ようになる。この還気ガラリ13aは正面左側に寄せて
縦長なガラリを設け、また裏面において縦方向にほぼ等
間隔で三段、開口内を右端縁からガラリ手前まで横に区
画した整風翼19を設け、ガラリから吸い込んだ還気を
ガラリ裏面の右の方へ案内排気する通風開口20を構成
具備する。
In order to carry out the return air widely in the vertical direction of the living room, it is advisable to make the louver vertically long, and therefore, it becomes as shown in FIG. 2 showing the second embodiment. This return air louver 13a is provided with a vertically elongated louver on the left side of the front face, and three levels of vertical louvers are provided on the back face at approximately equal intervals in the longitudinal direction, and the air conditioning blades 19 are horizontally divided from the right edge to the front of the louver. A ventilation opening 20 is provided to guide the return air sucked in from the back to the right of the back surface of the glass.

還気ガラリ13aの構造は、前記還気ガラリ13と同様
にアルミ繊維吸音板16で形成した通風路面下にグラス
ウール15による吸音材を充填した構造になっている。
そして、最外側は遮音板18で包む。
Similar to the return air gallery 13, the return air gallery 13a has a structure in which a sound absorbing material made of glass wool 15 is filled under the ventilation path surface formed by the aluminum fiber sound absorbing plate 16.
Then, the outermost side is wrapped with the sound insulation plate 18.

前出「NGKポアル」は曲げ加工が容易でグラスウール
のような繊維飛散がないため、グラスウール15の表面
を有効に押え、しかもグラスウールの吸音効果を損わ
ず、消音チャンバー式の通風開口20を簡易有効に得
る。
Since the above-mentioned "NGK Pour" is easy to bend and does not scatter fibers like glass wool, it effectively holds down the surface of glass wool 15 and does not impair the sound absorbing effect of glass wool, and simplifies the sound absorbing chamber type ventilation opening 20. Get effective.

その減音効果は下記の表(2)の通りである。The sound reduction effect is as shown in Table (2) below.

還気ガラリ13,13aの何れの場合も表(1)(2)
中で予想減音量(dB)としているのは、通気速度や実
際の建物の残響時間が異なるためである。
Table (1) (2) for both cases of return air galleries 13 and 13a
The reason why the estimated volume reduction (dB) is given is that the ventilation speed and the reverberation time of the actual building are different.

なお、整風翼19をガラリの裏面まで延ばしてもよい
が、その手前で先端面(第3図(c)中符号21)を曲
面に曲成して止めてあるのは、圧力損失を少なくするた
めである。
The air conditioning blade 19 may be extended to the back surface of the galleries, but the front end surface (reference numeral 21 in FIG. 3 (c)) is curved and stopped in front of it to reduce pressure loss. This is because.

《発明の効果》 以上詳しく説明したように、本発明に係るガラリによれ
ば、還気ガラリの機械室側(内面側)に金属繊維吸音板
で通気路面を得、その内側にグラスウール繊維等を遮音
板とともに包み込んで構成した筒状の通風開口を設ける
ので、機械室のスペースを消音チャンバー等のために費
することがなく、機械室自体を小さくできる。したがっ
て居室スペースが広くなる。
<Effects of the Invention> As described in detail above, according to the gallery according to the present invention, the ventilation path surface is obtained by the metal fiber sound absorbing plate on the machine room side (inner surface side) of the return air gallery, and the glass wool fiber or the like is provided inside thereof. Since the cylindrical ventilation opening is formed so as to be wrapped with the sound insulation plate, the space for the machine room is not wasted for the sound deadening chamber, and the machine room itself can be made small. Therefore, the living space becomes large.

金属繊維吸音材は圧縮して板状になったものを使用する
ので、繊維飛散がなく、通風路面として直に使用でき
る。また、金属繊維吸音材の表面にダストが付着しにく
く、万一付着しても吸音率の低下が少なく、簡単に除去
できる。それ故に減音効果を損わず、グラスウール等の
吸音効果も生きる。
Since the metal fiber sound absorbing material is used in the form of a plate by compression, it does not scatter the fibers and can be directly used as a ventilation road surface. Further, dust is unlikely to adhere to the surface of the metal fiber sound absorbing material, and even if it adheres, the sound absorbing coefficient is less likely to decrease and can be easily removed. Therefore, the sound-reducing effect is not impaired, and the sound-absorbing effect of glass wool, etc. is also alive.

また、整風翼の配置によって通風経路を長くし通風との
接触面積を調整する等して騒音源の周波数特性や減音
量,処理風量に合せ、最適な消音ボックスとなる通風開
口を構成できる。更に、金属繊維を板状に圧縮した吸音
板で通風開口の外殻ないし整風翼の外殻を形成できるの
で、軽量かつ施工性がよく、簡易な構成で効果のある還
気ガラリを提供できる効果がある。
Further, the ventilation passage can be lengthened by the arrangement of the air conditioning blades and the contact area with the ventilation can be adjusted to match the frequency characteristics of the noise source, the volume reduction, and the volume of air to be processed, so that an optimal ventilation opening can be configured as a silencing box. Furthermore, since the outer shell of the ventilation opening or the outer shell of the rectifying blade can be formed by the sound absorbing plate obtained by compressing the metal fiber into a plate shape, it is lightweight and has good workability, and it is possible to provide an effective return air gallery with a simple structure. There is.

【図面の簡単な説明】[Brief description of drawings]

第1図(a)は本発明の第1の実施例を示す還気ガラリ
の正面図、同図(b)はその側面図、第2図(a)は第
2の実施例を示す還気ガラリの正面図、第2図(b)は
同図(a)の側面図、第2図(c)は同図(a)のc−
c矢視線で示す端面図、第3図は機械室と居室との間に
設けられる従来の還気ガラリを示す斜視図である。 1……スラブ、2……スラブ 3……外壁、4……仕切壁 5……機械室、6……集塵機 7……空調機、8……外気取入口 9……居室、10……空調ダクト 11……ガラリ、12……消音壁 13……還気ガラリ、14……通風開口 15……グラスウール 16……アルミ繊維吸音板、17……整風翼 18……遮音板、19……整風翼 20……通風開口、21……整風翼の先端面
FIG. 1 (a) is a front view of a return air gallery showing a first embodiment of the present invention, FIG. 1 (b) is a side view thereof, and FIG. 2 (a) is a return air showing a second embodiment. Fig. 2 (b) is a side view of Fig. 2 (a) and Fig. 2 (c) is c- of Fig. 2 (a).
FIG. 3 is an end view taken along the line of arrow c, and FIG. 3 is a perspective view showing a conventional return air gallery provided between the machine room and the living room. 1 ... Slab 2 ... Slab 3 ... Outer wall 4 ... Partition wall 5 ... Machine room, 6 ... Dust collector 7 ... Air conditioner, 8 ... Outside air intake 9 ... Room 10 ... Air conditioning Duct 11 …… Gallery, 12 …… Muffling wall 13 …… Return air glare, 14 …… Ventilation opening 15 …… Glass wool 16 …… Aluminum fiber sound absorbing plate, 17 …… Wind regulating blade 18 …… Sound insulation plate, 19 …… Slimming Wing 20 ... Ventilation opening, 21 ... Tip surface of rectifying blade

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】外面を金属板,プラスチック板等の遮音板
で被覆し、通風路面は金属繊維を圧縮成形した板状の金
属繊維吸音板で構成し、該遮音板と該吸音板との間にグ
ラスウール等の吸音材を充填して成る通気ダクトがガラ
リの通気経路延長上に一体的に設けてあることを特徴と
するガラリ。
1. An outer surface is covered with a sound insulating plate such as a metal plate or a plastic plate, and a ventilation path surface is constituted by a plate-shaped metal fiber sound absorbing plate formed by compression molding of metal fibers, and between the sound insulating plate and the sound absorbing plate. A gallery characterized in that a ventilation duct formed by filling a sound absorbing material such as glass wool is integrally provided on the extension of the ventilation path of the gallery.
JP63096761A 1988-04-21 1988-04-21 Gallery Expired - Fee Related JPH0652133B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63096761A JPH0652133B2 (en) 1988-04-21 1988-04-21 Gallery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63096761A JPH0652133B2 (en) 1988-04-21 1988-04-21 Gallery

Publications (2)

Publication Number Publication Date
JPH01269852A JPH01269852A (en) 1989-10-27
JPH0652133B2 true JPH0652133B2 (en) 1994-07-06

Family

ID=14173629

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63096761A Expired - Fee Related JPH0652133B2 (en) 1988-04-21 1988-04-21 Gallery

Country Status (1)

Country Link
JP (1) JPH0652133B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008121964A (en) * 2006-11-10 2008-05-29 Mitsubishi Electric Corp House structure and house construction method
JP6448264B2 (en) * 2014-09-10 2019-01-09 株式会社ササクラ Blowing device and suction device for air conditioning equipment
JP6574663B2 (en) * 2015-09-30 2019-09-11 三機工業株式会社 Silent ventilation louver in the ceiling
JP7029787B2 (en) * 2017-12-01 2022-03-04 フルタ電機株式会社 Dustproof device
JP7025072B1 (en) * 2021-06-14 2022-02-24 株式会社Fhアライアンス Duct type air conditioning ventilation system

Also Published As

Publication number Publication date
JPH01269852A (en) 1989-10-27

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