JP2021148362A - Air supply chamber - Google Patents

Air supply chamber Download PDF

Info

Publication number
JP2021148362A
JP2021148362A JP2020048467A JP2020048467A JP2021148362A JP 2021148362 A JP2021148362 A JP 2021148362A JP 2020048467 A JP2020048467 A JP 2020048467A JP 2020048467 A JP2020048467 A JP 2020048467A JP 2021148362 A JP2021148362 A JP 2021148362A
Authority
JP
Japan
Prior art keywords
air
blowout
air supply
chamber
resistance
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
JP2020048467A
Other languages
Japanese (ja)
Other versions
JP7426865B2 (en
Inventor
隆司 磯村
Takashi Isomura
隆司 磯村
慎介 鈴木
Shinsuke Suzuki
慎介 鈴木
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.)
Sanki Engineering Co Ltd
Original Assignee
Sanki Engineering Co Ltd
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 Sanki Engineering Co Ltd filed Critical Sanki Engineering Co Ltd
Priority to JP2020048467A priority Critical patent/JP7426865B2/en
Publication of JP2021148362A publication Critical patent/JP2021148362A/en
Application granted granted Critical
Publication of JP7426865B2 publication Critical patent/JP7426865B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Duct Arrangements (AREA)

Abstract

To provide an air supply chamber that can control air from unnecessarily being supplied from an unintended part.SOLUTION: An air supply chamber includes: a chamber body 10 including a supply-air introduction port 11a and an air supply port 121a; and a bag-like filter 20 disposed inside the chamber body 10 and fitted to the supply-air introduction port 11a. The air supply port 121a is provided at a surface which is substantially in parallel with a supply-air introduction direction and opened laterally to vary air-supply resistance of the air supply port 121a depending on the region thereof.SELECTED DRAWING: Figure 1

Description

この発明は、チャンバ本体内に袋状フィルタを備えた壁設置の吹き出しチャンバに関し、特に温度成層空調用の壁設置の吹き出しチャンバに関する。 The present invention relates to a wall-mounted blowout chamber provided with a bag-shaped filter in the chamber body, and more particularly to a wall-mounted blowout chamber for temperature stratification air conditioning.

天井高の高い建物で空調を行う場合、空調された空気（以下、空調空気）を室内全体に拡散する混合希釈空調方式ではなく、高温になった空気の浮力を利用して、空間上部の高温領域と、下部の低温領域との空気密度差に基づき成層をなし、例えば夏期などにおいて、人が多く存在する範囲（例えば床面から上に２ｍ程度の範囲の下部の低温領域）を空調空気で満たす温度成層空調方式を採用する場合がある。空間上部の高温領域に滞留する空気を積極的に排気し、中間や下部の空気を還気として循環することで、高温領域の高温空気を冷却しなくてよいので、混合希釈空調方式と比べても温度成層空調の方が省エネルギー化を図りやすい。 When air-conditioning in a building with a high ceiling, the high temperature in the upper part of the space is used instead of the mixed dilution air-conditioning method that diffuses the conditioned air (hereinafter referred to as conditioned air) throughout the room. It is stratified based on the difference in air density between the region and the lower low temperature region. Satisfying temperature stratification air conditioning system may be adopted. Compared to the mixed dilution air conditioning method, it is not necessary to cool the high temperature air in the high temperature region by actively exhausting the air staying in the high temperature region in the upper part of the space and circulating the air in the middle and lower parts as return air. However, temperature stratified air conditioning is easier to save energy.

温度成層空調では、空調空気の層を形成するために、また形成された層を乱さないために空調空気を緩やかに供給する必要がある。そこで特許文献１、２では、ダクトから送られてくる空調空気をそのまま吹き出すのではなく、空調空気量に対して十分大きな容量および吹き出し口を有するチャンバを介して吹き出すことで吹き出し風速を弱めている。特に特許文献１、２ではダクトにソックダクトやバグフィルタを接続するとともに、チャンバの正面や側面に設けられた吹き出し口に対して通風パネル（ガラリチャンバー、デイフューザー板）を取り付けているため、吹き出し口全体から滲み出すような給気が可能となっている。 In temperature stratified air conditioning, it is necessary to supply conditioned air gently in order to form a layer of conditioned air and not to disturb the formed layer. Therefore, in Patent Documents 1 and 2, the air-conditioned air sent from the duct is not blown out as it is, but is blown out through a chamber having a sufficiently large capacity and an outlet for the amount of air-conditioned air to weaken the blowing air speed. .. In particular, in Patent Documents 1 and 2, a sock duct and a bag filter are connected to the duct, and a ventilation panel (louver chamber, diffuser plate) is attached to the air outlet provided on the front or side surface of the chamber. It is possible to supply air that exudes from the whole.

特許第５０８７６８８号公報Japanese Patent No. 50876888 特許第２８６２１４９号公報Japanese Patent No. 2862149

ところで特許文献１、２では、通風パネル（側パネルやデイフューザー板）に設けられた通風用の孔（開口）が全面に亘って均一であり、吹き出し抵抗は全面に亘って均一である。ただ、同構造の吹出しユニットを試作し、吹き出し口の通風パネルを格子状に区画して各区画の吹き出し風速を測ってみると、区画によって吹き出し速度にばらつきがあり、意図しない部分から不必要に空調空気が吹き出していることが分かった。 By the way, in Patent Documents 1 and 2, the holes (openings) for ventilation provided in the ventilation panel (side panel and diffuser plate) are uniform over the entire surface, and the blowout resistance is uniform over the entire surface. However, when we made a prototype of a blowout unit with the same structure, divided the ventilation panels of the blowout ports in a grid pattern, and measured the blowout air velocity in each section, the blowout speed varied depending on the section, and it was unnecessary from the unintended part. It turned out that the conditioned air was blowing out.

そこで本発明は、意図しない部分からの不必要な吹き出しを抑制することができる吹き出しチャンバの提供を目的とする。 Therefore, an object of the present invention is to provide a blowout chamber capable of suppressing unnecessary blowout from an unintended portion.

本発明の吹き出しチャンバは、給気導入口１１ａと、吹き出し口１２１ａとを有するチャンバ本体１０と、前記チャンバ本体１０内に配置され、前記給気導入口１１ａに取り付けられる袋状フィルタ２０とを備え、前記吹き出し口１２１ａが、給気の導入方向と略平行な面に設けられ、且つ側方に開口しており、吹き出し口１２１ａの吹き出し抵抗を部位によって異ならせていることを特徴としている。 The blowout chamber of the present invention includes a chamber main body 10 having an air supply inlet 11a and a blowout port 121a, and a bag-shaped filter 20 arranged in the chamber main body 10 and attached to the air supply inlet 11a. The blowout port 121a is provided on a surface substantially parallel to the introduction direction of the air supply and is open to the side, so that the blowout resistance of the blowout port 121a differs depending on the portion.

上記吹き出しチャンバでは、前記給気導入口１１ａから給気の導入方向に離れている離間部位１２１ａ１の吹き出し抵抗が、前記給気導入口１１ａに近い近傍部位１２１ａ２の吹き出し抵抗より大とされていることが好ましい。 In the blowout chamber, the blowout resistance of the separation portion 121a1 away from the air supply introduction port 11a in the air supply introduction direction is set to be larger than the blowout resistance of the nearby portion 121a2 near the air supply introduction port 11a. Is preferable.

また、前記離間部位１２１ａ１に空気抵抗材１６が取り付けられていることが好ましい。さらに、給気の導入方向における、離間部位１２１ａ１と近傍部位１２１ａ２の長さ比がおよそ２：１とされていることが好ましい。さらにまた、袋状フィルタ２０の流路面積が先端に向かうにつれて小さくなっていることが好ましい。 Further, it is preferable that the air resistance material 16 is attached to the separation portion 121a1. Further, it is preferable that the length ratio of the separated portion 121a1 and the neighboring portion 121a2 in the introduction direction of the air supply is about 2: 1. Furthermore, it is preferable that the flow path area of the bag-shaped filter 20 becomes smaller toward the tip.

本発明の吹き出しチャンバでは、吹き出し口の吹き出し抵抗を部位によって異ならせることで、過度な吹き出しが生じている部位の吹き出し抵抗を他の部位よりも相対的に大きくすることができ、不必要な吹き出しを抑制することができる。 In the blowout chamber of the present invention, by making the blowout resistance of the blowout port different depending on the part, the blowout resistance of the part where excessive blowout occurs can be made relatively larger than that of other parts, and unnecessary blowout can be made. Can be suppressed.

空気抵抗材が取り付けられるなどして、給気導入口から給気の導入方向に離れている離間部位の吹き出し抵抗が、給気導入口に近い近傍部位の吹き出し抵抗より大とされている場合、離間部位での不要な吹き出しを抑制することができる。すなわち、例えばソックダクトやバグフィルタに代表される袋状フィルタは末端からの排出量が他の部分に比べて多くなる傾向にあるため、吹き出し抵抗が吹き出し口全面に亘って均一であると離間部位からの吹き出し量が多くなってしまうが、離間部位の吹き出し抵抗を相対的に大とすることでその影響を軽減することができる。 When the blowout resistance of the separated part away from the air supply introduction port in the air supply introduction direction is set to be larger than the blowout resistance of the vicinity part near the air supply introduction port due to the installation of an air resistance material, etc. Unnecessary blowout at the separated part can be suppressed. That is, for example, a bag-shaped filter represented by a sock duct or a bag filter tends to discharge a large amount from the end as compared with other parts. However, the effect can be mitigated by making the blowout resistance of the separated portion relatively large.

給気の導入方向における、離間部位と近傍部位の長さ比がおよそ２：１とされている場合、吹き出し口全体でバランスの取れた吹き出し風速とすることができる。 When the length ratio of the separated portion and the neighboring portion in the introduction direction of the air supply is set to about 2: 1, the blowing air velocity can be balanced over the entire blowing port.

袋状フィルタの流路面積が先端に向かうにつれて小さくなっている場合、末端からの排出量が多くなるといった傾向を抑えることができる。 When the flow path area of the bag-shaped filter becomes smaller toward the tip, it is possible to suppress the tendency that the amount of discharge from the end increases.

この発明の一実施形態に係る吹き出しチャンバの分解斜視図である。It is an exploded perspective view of the blowing chamber which concerns on one Embodiment of this invention. 図１の吹き出しチャンバの斜視図である。It is a perspective view of the blowout chamber of FIG. 図２の吹き出しチャンバの断面図である。It is sectional drawing of the blowing chamber of FIG. 他の実施形態に係る吹き出しチャンバの断面図である。It is sectional drawing of the blowing chamber which concerns on other embodiment. 実験結果を示す図であって、図５Ａが実施例を、図５Ｂが比較例を示している。It is a figure which shows the experimental result, FIG. 5A shows an Example, and FIG. 5B shows a comparative example.

次に、この発明の吹き出しチャンバの一実施形態を図面に基づいて詳細に説明する。この発明の吹き出しチャンバ１は温度成層空調向け冷暖房用の壁設置のチャンバであって、図１及び図３に示すように、チャンバ本体１０と、チャンバ本体１０内に配置される袋状フィルタ２０とを備えている。 Next, an embodiment of the blowout chamber of the present invention will be described in detail with reference to the drawings. The blowout chamber 1 of the present invention is a wall-mounted chamber for heating and cooling for temperature stratification air conditioning, and as shown in FIGS. 1 and 3, the chamber body 10 and the bag-shaped filter 20 arranged in the chamber body 10 It has.

チャンバ本体１０は中空直方体状であって、平面視長方形状の底部１１と、底部１１の４辺から立ち上がる側壁部１２と、側壁部１２の上端を塞ぐ上部１３とを有している。側壁部１２は、底部１１の長辺から立ち上がる正面部１２１、背面部１２２と、底部１１の短辺から立ち上がる２つの側面部１２３とからなる。そして、正面部１２１と２つの側面部１２３にはそれぞれ空調空気を吹き出すための側方に開口する吹き出し口１２１ａが設けられている。吹き出し口１２１ａは正面部１２１と側面部１２３のほぼ全面に亘って設けられている。従って、チャンバ本体１０は、底部１１と、背面部１２２と、上部１３とから構成されており、正面と両側面に吹き出し口１２１ａを備えているともいえる。 The chamber body 10 has a hollow rectangular parallelepiped shape, and has a bottom portion 11 having a rectangular shape in a plan view, a side wall portion 12 rising from four sides of the bottom portion 11, and an upper portion 13 that closes the upper end of the side wall portion 12. The side wall portion 12 includes a front portion 121 and a back surface portion 122 that rise from the long side of the bottom portion 11, and two side surface portions 123 that rise from the short side of the bottom portion 11. The front portion 121 and the two side surface portions 123 are each provided with outlets 121a that open laterally to blow out conditioned air. The outlet 121a is provided over substantially the entire surface of the front surface portion 121 and the side surface portion 123. Therefore, it can be said that the chamber main body 10 is composed of a bottom portion 11, a back surface portion 122, and an upper portion 13, and is provided with outlets 121a on the front surface and both side surfaces.

図１に示すように、吹き出し口１２１ａは桟材１４によって区画されている。具体的には、正面部１２１には縦桟１４１と横桟１４２が１本ずつ、側面部１２３にはそれぞれ横桟１４２が１本ずつ設けられている。縦桟１４１は正面部１２１の略中央に位置し、横桟１４２は吹き出し口１２１ａを高さ方向に三分割したときの下から１つ目の高さに位置している。そして桟材１４によって区画された各区画にはそれぞれ通風材１５が取り付けられている（図３参照）。通風材１５は例えば樹脂製のネットである。例えば平均捕集効率（質量法）は１５〜２５％程度で、初期圧力損失は風速１．５ｍ／ｓで２．０〜９．０Ｐａである。また、各区画のうち、上側の区画には空気抵抗材１６が取り付けられている。空気抵抗材１６は通風材１５よりも上流側に位置している。空気抵抗材１６は例えば不織布である。例えば平均捕集効率（質量法）は５０〜７０％程度で、初期圧力損失は風速２．５ｍ／ｓで２０〜９０Ｐａである。このように上側の区画に空気抵抗材１６を取り付けることで、上側の区画の吹き出し抵抗は下側の区画に比べて大となっている。吹き出し抵抗が大となっている部位と、吹き出し抵抗が小となっている部位の上下方向の長さ比はおよそ２：１である。なお、チャンバ本体１０を正面から見たときの左上の区画は、通風材１５及び空気抵抗材１６が桟材１４に対して着脱可能に取り付けられている。具体的には、区画と同形状の枠材１７を介して通風材１５及び空気抵抗材１６が桟材１４に取り付けられている。 As shown in FIG. 1, the outlet 121a is partitioned by the crosspiece 14. Specifically, the front portion 121 is provided with one vertical rail 141 and one horizontal rail 142, and the side surface portion 123 is provided with one horizontal rail 142, respectively. The vertical rail 141 is located substantially in the center of the front portion 121, and the horizontal rail 142 is located at the first height from the bottom when the outlet 121a is divided into three in the height direction. A ventilation material 15 is attached to each section partitioned by the crosspiece 14 (see FIG. 3). The ventilation material 15 is, for example, a resin net. For example, the average collection efficiency (mass method) is about 15 to 25%, and the initial pressure loss is 2.0 to 9.0 Pa at a wind speed of 1.5 m / s. Further, an air resistance material 16 is attached to the upper section of each section. The air resistance material 16 is located on the upstream side of the ventilation material 15. The air resistance material 16 is, for example, a non-woven fabric. For example, the average collection efficiency (mass method) is about 50 to 70%, and the initial pressure loss is 20 to 90 Pa at a wind speed of 2.5 m / s. By attaching the air resistance material 16 to the upper section in this way, the blowout resistance of the upper section is larger than that of the lower section. The vertical length ratio between the portion where the blowout resistance is large and the portion where the blowout resistance is low is approximately 2: 1. The ventilation material 15 and the air resistance material 16 are detachably attached to the crosspiece 14 in the upper left section when the chamber body 10 is viewed from the front. Specifically, the ventilation material 15 and the air resistance material 16 are attached to the crosspiece 14 via a frame material 17 having the same shape as the section.

ところで底部１１の略中央には、給気ダクト３０からの空調空気をチャンバ本体１０内に導入するための給気導入口１１ａが設けられている。また給気導入口１１ａを縁取るようにしてフランジが設けられている（図３参照）。チャンバ本体１０の外側に延びるフランジ１１ｂは、給気ダクト３０を接続するためのものであり、チャンバ本体１０内に延びるフランジ１１ｃは、袋状フィルタ２０を接続するためのものである。 By the way, at substantially the center of the bottom portion 11, an air supply introduction port 11a for introducing the conditioned air from the air supply duct 30 into the chamber main body 10 is provided. Further, a flange is provided so as to border the air supply introduction port 11a (see FIG. 3). The flange 11b extending to the outside of the chamber body 10 is for connecting the air supply duct 30, and the flange 11c extending to the inside of the chamber body 10 is for connecting the bag-shaped filter 20.

袋状フィルタ２０は中空三角柱状であって、三角形とされた面（側マチ）をチャンバ本体１０の側面部１２３の内面に向けるようにしてチャンバ本体１０内に配置されている。袋状フィルタ２０の下端は開口しており、上記フランジ１１ｃに接続されている。上端は閉じられており、チャンバ本体１０の上部１３に固定されている。従ってこの袋状フィルタ２０は下から上に向かって延出されているといえ、吹き出し口１２１ａは袋状フィルタ２０の延出方向と略平行な面に設けられているといえる。なお、給気は下から上に向かって行われるため、吹き出し口１２１ａは給気の導入方向（図２、図３の白抜き矢印）と略平行な面に設けられているともいえる。袋状フィルタ２０の側面視形状が略三角形であることから分かるように、袋状フィルタ２０の流路面積は末端（先端）に向かうにつれて小さくなっている。減少率はほぼ一律である。袋状フィルタ２０の上下方向の長さは吹き出し口１２１ａの高さとほぼ同じである。上記袋状フィルタ２０は不織布からなる。従って、袋状フィルタ２０は、側面マチ付平袋状の不織布袋ともいえる。不織布は、例えば平均捕集効率（質量法）は５０〜７０％、初期圧力損失は風速２．５ｍ／ｓで２０〜９０Ｐａのものであって、空気抵抗材１６と同一であるが異ならせてもよい。 The bag-shaped filter 20 has a hollow triangular columnar shape, and is arranged in the chamber body 10 so that the triangular surface (side gusset) faces the inner surface of the side surface portion 123 of the chamber body 10. The lower end of the bag-shaped filter 20 is open and is connected to the flange 11c. The upper end is closed and fixed to the upper portion 13 of the chamber body 10. Therefore, it can be said that the bag-shaped filter 20 extends from the bottom to the top, and it can be said that the outlet 121a is provided on a surface substantially parallel to the extending direction of the bag-shaped filter 20. Since the air supply is performed from the bottom to the top, it can be said that the outlet 121a is provided on a surface substantially parallel to the air supply introduction direction (white arrows in FIGS. 2 and 3). As can be seen from the fact that the side view shape of the bag-shaped filter 20 is substantially triangular, the flow path area of the bag-shaped filter 20 becomes smaller toward the end (tip). The rate of decrease is almost uniform. The vertical length of the bag-shaped filter 20 is substantially the same as the height of the outlet 121a. The bag-shaped filter 20 is made of a non-woven fabric. Therefore, the bag-shaped filter 20 can be said to be a flat bag-shaped non-woven fabric bag with a side gusset. The non-woven fabric has, for example, an average collection efficiency (mass method) of 50 to 70% and an initial pressure loss of 20 to 90 Pa at a wind speed of 2.5 m / s, which is the same as but different from that of the air resistance material 16. May be good.

上記構成の吹き出しチャンバ１は、フランジ１１ｂに給気ダクト３０を接続することで使用される。使用にあたって給気ダクト３０から空調空気を供給すると、空調空気は袋状フィルタ２０を通ってチャンバ本体１０内に緩やかに排出されるが、袋状フィルタ２０は末端からの排出量が他の部位に比べて多い傾向にあるため、何ら対策を採らなければ、吹き出し口１２１ａのうち、上側の部位（給気導入口１１ａから給気の導入方向に離れている離間部位１２１ａ１）から多くの空調空気を吹き出してしまう。フランジ１１ｂに接続される給気ダクト３０内部を図示しない空調機のファンなどによって動圧を与えられた給気は、給気ダクト３０の先の袋状フィルタ２０によって静圧変換されて不織布から方向変換されるものの動圧が末端で残って吹き抜け気味となるからである。この点、上記構成の吹き出しチャンバ１では、離間部位１２１ａ１である上側の区画に空気抵抗材１６を取り付けることで、上側の区画の吹き出し抵抗を下側の区画（給気導入口１１ａに近い近傍部位１２１ａ２）の吹き出し抵抗よりも大としているため、袋状フィルタ２０の末端から多くの空調空気が排出されても、上側の区画からの不必要な吹き出しを抑制することができ、給気の導入方向における吹き出し風速のムラを小さくすることができる。よって温度成層空調用の吹き出しチャンバとして好適に用いることができる。 The blowout chamber 1 having the above configuration is used by connecting the air supply duct 30 to the flange 11b. When conditioned air is supplied from the air supply duct 30 during use, the conditioned air is gently discharged into the chamber body 10 through the bag-shaped filter 20, but the amount of the conditioned air discharged from the end of the bag-shaped filter 20 is discharged to other parts. If no measures are taken, a large amount of conditioned air will be taken from the upper part of the outlet 121a (the separated part 121a1 away from the air supply introduction port 11a in the air supply introduction direction). It blows out. The air supply to which the dynamic pressure is applied by an air conditioner fan or the like (not shown) inside the air supply duct 30 connected to the flange 11b is statically converted by the bag-shaped filter 20 at the tip of the air supply duct 30 and directed from the non-woven fabric. This is because the dynamic pressure of what is converted remains at the end and tends to be a stairwell. In this regard, in the blowout chamber 1 having the above configuration, by attaching the air resistance material 16 to the upper section which is the separation portion 121a1, the blowout resistance of the upper section is reduced to the lower section (near portion near the air supply introduction port 11a). Since it is made larger than the blowout resistance of 121a2), even if a large amount of conditioned air is discharged from the end of the bag-shaped filter 20, unnecessary blowout from the upper section can be suppressed, and the air supply introduction direction. It is possible to reduce the unevenness of the blown wind speed in. Therefore, it can be suitably used as a blowout chamber for temperature stratification air conditioning.

吹き出しチャンバ１の設置場所としては、図３に示すように、建屋の壁面３１に設けられた窪みが挙げられる。この場合、壁面３１内に吹き出しチャンバ１が収まるため、吹き出しチャンバ１が室内の利用者にとって邪魔にならない。また、吹き出しチャンバ１の前にルーバー３３を設置すれば、吹き出しチャンバ１を隠しつつ空調することができる。ただ、壁面３１に背面部１２２を沿わせるようにして設置してもよい。この場合、壁面３１に窪みを設ける必要が無い。給気ダクト３０は床面３２に設けた竪穴から引き込むことが好ましい。 As a place where the blowout chamber 1 is installed, as shown in FIG. 3, a recess provided in the wall surface 31 of the building can be mentioned. In this case, since the blowout chamber 1 fits in the wall surface 31, the blowout chamber 1 does not interfere with the users in the room. Further, if the louver 33 is installed in front of the blowout chamber 1, air conditioning can be performed while hiding the blowout chamber 1. However, the back surface portion 122 may be installed along the wall surface 31. In this case, it is not necessary to provide a recess in the wall surface 31. The air supply duct 30 is preferably drawn through a vertical hole provided in the floor surface 32.

図４は、異なる実施形態に係る吹き出しチャンバ１Ａを示している。この吹き出しチャンバ１Ａは、チャンバ本体１０の上部１３に給気導入口１１ａが設けられており、袋状フィルタ２０は上から下に延出されている。そして横桟１４２は吹き出し口１２１ａを高さ方向に三分割したときの下から２つ目の高さに位置している。空気抵抗材１６は下側の区画に取り付けられている。すなわち、図３の吹き出しチャンバ１と上下が反転した状態である。この吹き出しチャンバ１Ａについても、給気導入口１１ａから給気の導入方向に離れている下側の区画（離間部位１２１ａ１）の吹き出し抵抗が、給気導入口１１ａに近い上側の区画（近傍部位１２１ａ２）の吹き出し抵抗よりも大とされているため、袋状フィルタ２０の末端から多くの空調空気が排出されても、下側の区画からの不必要な吹き出しを抑制することができ、給気の導入方向における吹き出し風速のムラを小さくすることができる。 FIG. 4 shows a blowout chamber 1A according to a different embodiment. The blowout chamber 1A is provided with an air supply introduction port 11a at the upper portion 13 of the chamber body 10, and the bag-shaped filter 20 extends from the top to the bottom. The cross rail 142 is located at the second height from the bottom when the outlet 121a is divided into three in the height direction. The air resistance material 16 is attached to the lower compartment. That is, it is in a state of being upside down with the blowout chamber 1 of FIG. Also in this blowout chamber 1A, the blowout resistance of the lower section (separation portion 121a1) away from the supply air introduction port 11a in the air supply introduction direction is the upper section (neighboring portion 121a2) close to the supply air introduction port 11a. ) Is larger than the blowout resistance, so even if a large amount of conditioned air is discharged from the end of the bag-shaped filter 20, unnecessary blowout from the lower section can be suppressed, and the air supply It is possible to reduce the unevenness of the blown wind speed in the introduction direction.

（実施例）
図５Ａは、上から給気するタイプ（図４）の吹き出しチャンバにおいて、チャンバ本体１０の幅を２４８０ｍｍ、高さを１８００ｍｍ、奥行きを６２０ｍｍ（容量約２．７７ｍ３）とし、桟材１４の幅を８０ｍｍとし、吹き出し口１２１ａの総面積を約５．４９ｍ２とし、給気導入口１１ａの幅を１３０４ｍｍ、奥行き方向の長さを３０４ｍｍとし、通風材１５として株式会社アクシー製の粗塵用樹脂製フィルタ ＰＨ３８００−１（平均捕集効率（質量法） １８％、初期圧力損失は風速１．５ｍ／ｓで５．６Ｐａ）を、空気抵抗材１６として日本バイリーン株式会社製の粗塵用不織布フィルタ ＰＳ／１５０Ｎ（平均捕集効率（質量法） ６３％、初期圧力損失は風速２．５ｍ／ｓで３０Ｐａ）を、袋状フィルタ２０の材料として空気抵抗材１６と同材料を使用し、給気量を６０００ｍ３／ｈとしたときの吹き出し風速を表した図である。なお、空気抵抗材１６がある部分の通風抵抗は、空気抵抗材１６が無い部分に比べて６５．８％増加している。図中に記載の数字の単位はｍ／ｓである。また、吹き出し風速は、正面部１２１を１２分割し、１２点それぞれで測定を行った。 (Example)
FIG. 5A shows a blowout chamber of a type (FIG. 4) in which air is supplied from above, the width of the chamber body 10 is 2480 mm, the height is 1800 mm, the depth is 620 mm (capacity: about 2.77 m 3 ), and the width of the cross-woven fabric 14 is set. 80 mm, the total area of the outlet 121a is about 5.49 m 2 , the width of the air supply inlet 11a is 1304 mm, the length in the depth direction is 304 mm, and the ventilation material 15 is a coarse dust resin manufactured by Axie Co., Ltd. Filter PH380-1 (average collection efficiency (mass method) 18%, initial pressure loss 5.6 Pa at wind speed 1.5 m / s) as air resistance material 16 Non-woven fabric filter for coarse dust manufactured by Nippon Baileen Co., Ltd. PS / 150N (average collection efficiency (mass method) 63%, initial pressure loss is 30 Pa at a wind speed of 2.5 m / s), and the same material as the air resistance material 16 is used as the material for the bag-shaped filter 20, and air is supplied. It is the figure which showed the blowing wind speed when the amount was 6000 m 3 / h. The ventilation resistance of the portion with the air resistance material 16 is increased by 65.8% as compared with the portion without the air resistance material 16. The unit of the numbers shown in the figure is m / s. Further, the blown wind speed was measured at each of the 12 points by dividing the front portion 121 into twelve.

（比較例）
また、空気抵抗材１６を設けない他は上記実施例と同一条件としたものを比較例として用意した。図５Ｂが比較例の吹き出し風速を表した図である。 (Comparison example)
Further, a comparative example was prepared under the same conditions as in the above embodiment except that the air resistance material 16 was not provided. FIG. 5B is a diagram showing the blown wind speed of the comparative example.

図５Ｂに示す比較例では、給気導入口１１ａから給気の導入方向に離れている下側（離間部位１２１ａ１）の吹き出し風速が大きい一方で、給気導入口１１ａに近い上側（近傍部位１２１ａ２）の吹き出し風速が小さく、上下方向における吹き出し風速のばらつきが大きくなっている。それに対して、給気導入口１１ａから給気の導入方向に離れている下側（離間部位１２１ａ１）に空気抵抗材１６を設けている実施例（図５Ａ）では、上下方向における吹き出し風速のばらつきが抑えられていることが分かる。 In the comparative example shown in FIG. 5B, the blown wind speed on the lower side (separated portion 121a1) away from the air supply introduction port 11a in the air supply introduction direction is large, while the upper side (neighboring portion 121a2) close to the air supply introduction port 11a. ) The blown wind speed is small, and the variation of the blown wind speed in the vertical direction is large. On the other hand, in the embodiment (FIG. 5A) in which the air resistance material 16 is provided on the lower side (separation portion 121a1) away from the air supply introduction port 11a in the air supply introduction direction, the blowout wind speed varies in the vertical direction. Can be seen to be suppressed.

以上に、この発明の実施形態について説明したが、この発明は上記実施形態に限定されるものではなく、この発明の範囲内で種々変更して実施することが可能である。例えば上記実施形態では、通風材１５として樹脂製のネットを用いていたが、金属製のネットでも良い。またネットに限らず、板材に多数の孔を設けた有孔パネルやガラリを用いてもよい。また、空気抵抗材１６としては不織布に限らず、織布を用いてもよい。また、空気抵抗材１６を用いず、通風材１５（ネット、有孔パネル、ガラリ）の開口率や圧力損失、平均捕集効率等を部位によって異ならせることで、離間部位１２１ａ１の吹き出し抵抗を近傍部位１２１ａ２の吹き出し抵抗より大としてもよい。さらに、吹き出し抵抗を段階的、または連続的に変えることで、給気導入口１１ａから給気の導入方向に離れるほど吹き出し抵抗が増していくという構成にしてもよい。また、吹き出し抵抗が大となっている部位と、吹き出し抵抗が小となっている部位の長さ比は２：１に限らず、適宜変更してもよい。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention. For example, in the above embodiment, a resin net is used as the ventilation material 15, but a metal net may also be used. Further, not limited to the net, a perforated panel or a louver having a large number of holes in the plate material may be used. Further, the air resistance material 16 is not limited to the non-woven fabric, and a woven fabric may be used. Further, by making the opening ratio, pressure loss, average collection efficiency, etc. of the ventilation material 15 (net, perforated panel, louver) different depending on the part without using the air resistance material 16, the blowout resistance of the separation part 121a1 is brought close to the vicinity. It may be larger than the blowout resistance of the portion 121a2. Further, by changing the blowout resistance stepwise or continuously, the blowout resistance may increase as the distance from the supply air introduction port 11a in the supply air introduction direction increases. Further, the length ratio between the portion where the blowing resistance is large and the portion where the blowing resistance is small is not limited to 2: 1 and may be changed as appropriate.

また、上記実施形態では、給気導入口１１ａから給気の導入方向に離れている離間部位１２１ａ１の吹き出し抵抗を大としていたが、吹き出し口１２１ａ周辺の状況に合わせて吹き出し抵抗を大とする部位を調整してもよい。例えば、吹き出し口１２１ａの前方に、給気の障害物となる観客席等が設けられている場合、障害物と対向する部位の吹き出し抵抗を大として、障害物に当たる風量を小さくすることも可能である。給気が座席や観客にぶつかって様々な方向へ気流が向かって温度成層を乱す観客席への給気風量を小さくすることで、その直上の風量が大きくても対象室内の下部の空気密度差による温度成層は逆に乱されず良好となる。 Further, in the above embodiment, the blowout resistance of the separated portion 121a1 separated from the supply air introduction port 11a in the supply air introduction direction is increased, but the portion where the blowout resistance is increased according to the situation around the outlet 121a. May be adjusted. For example, when a spectator seat or the like that becomes an obstacle to air supply is provided in front of the air outlet 121a, it is possible to increase the air blow resistance of the portion facing the obstacle and reduce the air volume that hits the obstacle. be. The air supply hits the seats and the spectators, and the airflow moves in various directions to disturb the temperature stratification. On the contrary, the temperature stratification is not disturbed and becomes good.

また、別な実施形態としては、給気導入口１１ａを、２つの側面部１２３のうちの一方の側面部１２３に設けてもよい。この場合、側面部１２３には吹き出し口１２１ａを設けない。また、離間部位１２１ａ１は他方の側面部１２３側となり、近傍部位１２１ａ２は一方の側面部１２３側となる。 Further, as another embodiment, the air supply introduction port 11a may be provided on one side surface portion 123 of the two side surface portions 123. In this case, the side surface portion 123 is not provided with the outlet 121a. Further, the separated portion 121a1 is on the other side surface portion 123 side, and the neighboring portion 121a2 is on the one side surface portion 123 side.

１、１Ａ 吹き出しチャンバ
１０ チャンバ本体
１１ 底部
１１ａ 給気導入口
１１ｂ フランジ（給気ダクト接続用）
１１ｃ フランジ（袋状フィルタ接続用）
１２ 側壁部
１２１ 正面部
１２１ａ 吹き出し口
１２１ａ１ 離間部位
１２１ａ２ 近傍部位
１２２ 背面部
１２３ 側面部
１３ 上部
１４ 桟材
１４１ 縦桟
１４２ 横桟
１５ 通風材
１６ 空気抵抗材
１７ 枠材
２０ 袋状フィルタ
３０ 給気ダクト
３１ 建屋の壁面
３２ 建屋の床面
３３ ルーバー 1, 1A Blow-out chamber 10 Chamber body 11 Bottom 11a Air supply inlet 11b Flange (for connecting air supply duct)
11c flange (for connecting bag-shaped filter)
12 Side wall 121 Front side 121a Outlet 121a1 Separation part 121a2 Near part 122 Back part 123 Side part 13 Upper part 14 Crosspiece 141 Vertical rail 142 Horizontal rail 15 Ventilation material 16 Air resistance material 17 Frame material 20 Bag-shaped filter 30 Air supply duct 31 Building wall surface 32 Building floor surface 33 Louver

Claims (5)

給気導入口と、吹き出し口とを有するチャンバ本体と、
前記チャンバ本体内に配置され、前記給気導入口に取り付けられる袋状フィルタとを備え、
前記吹き出し口が、給気の導入方向と略平行な面に設けられ、且つ側方に開口しており、
吹き出し口の吹き出し抵抗を部位によって異ならせている、吹き出しチャンバ。 A chamber body having an air supply inlet and an outlet,
It is provided with a bag-shaped filter arranged in the chamber body and attached to the air supply inlet.
The outlet is provided on a surface substantially parallel to the air supply introduction direction and is open to the side.
A blowout chamber in which the blowout resistance of the blowout port differs depending on the part. 前記給気導入口から給気の導入方向に離れている離間部位の吹き出し抵抗が、前記給気導入口に近い近傍部位の吹き出し抵抗より大とされている、
請求項１記載の吹き出しチャンバ。 The blowout resistance of the separated portion away from the air supply inlet in the air supply introduction direction is set to be larger than the blowout resistance of the vicinity portion near the air supply inlet.
The blowout chamber according to claim 1. 前記離間部位に空気抵抗材が取り付けられている、
請求項２記載の吹き出しチャンバ。 An air resistance material is attached to the separated portion,
The blowout chamber according to claim 2. 給気の導入方向における、離間部位と近傍部位の長さ比がおよそ２：１とされている、
請求項２または３記載の吹き出しチャンバ。 The length ratio of the separated part and the neighboring part in the introduction direction of the air supply is about 2: 1.
The blowout chamber according to claim 2 or 3. 袋状フィルタの流路面積が先端に向かうにつれて小さくなっている、
請求項１から４のいずれかに記載の吹き出しチャンバ。
The flow path area of the bag-shaped filter becomes smaller toward the tip,
The blowout chamber according to any one of claims 1 to 4.
JP2020048467A 2020-03-18 2020-03-18 blowout chamber Active JP7426865B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2020048467A JP7426865B2 (en) 2020-03-18 2020-03-18 blowout chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2020048467A JP7426865B2 (en) 2020-03-18 2020-03-18 blowout chamber

Publications (2)

Publication Number Publication Date
JP2021148362A true JP2021148362A (en) 2021-09-27
JP7426865B2 JP7426865B2 (en) 2024-02-02

Family

ID=77848279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2020048467A Active JP7426865B2 (en) 2020-03-18 2020-03-18 blowout chamber

Country Status (1)

Country Link
JP (1) JP7426865B2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805521A (en) * 1987-01-28 1989-02-21 Ab Bahco Ventilation Supply air device
JP2862149B2 (en) * 1990-10-02 1999-02-24 日本フレクト 株式会社 Ventilation method
JP2005061700A (en) * 2003-08-11 2005-03-10 Soltec Kogyo:Kk Air cleaner
JP2007127366A (en) * 2005-11-07 2007-05-24 East Japan Railway Co Air conditioner for half-open space and its air conditioning method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5490485B2 (en) 2009-10-16 2014-05-14 高砂熱学工業株式会社 Replacement ventilation equipment for large space rooms

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805521A (en) * 1987-01-28 1989-02-21 Ab Bahco Ventilation Supply air device
JP2862149B2 (en) * 1990-10-02 1999-02-24 日本フレクト 株式会社 Ventilation method
JP2005061700A (en) * 2003-08-11 2005-03-10 Soltec Kogyo:Kk Air cleaner
JP2007127366A (en) * 2005-11-07 2007-05-24 East Japan Railway Co Air conditioner for half-open space and its air conditioning method

Also Published As

Publication number Publication date
JP7426865B2 (en) 2024-02-02

Similar Documents

Publication Publication Date Title
JP2002022198A (en) Air conditioner
CN110160149A (en) A kind of air conditioner indoor unit, air conditioner and air-conditioner control method
CN209991595U (en) Air conditioner air deflector air outlet structure capable of avoiding condensation and air conditioner air deflector
JP2019105383A (en) Air conditioning unit
JP6493997B2 (en) Air conditioner
JP6767616B2 (en) Blower
CN107238189A (en) Air outlet structure, wall hanging machine and air conditioner
KR100854760B1 (en) Underfloor for swirl diffuser
JP6414891B2 (en) Desk with air conditioner
JP2021148362A (en) Air supply chamber
JP2000234796A (en) Air conditioner
CN216790369U (en) Distributed air supply duct machine and distributed air supply device
JP2007113806A (en) Wind direction control device for air outlet and indoor unit of air conditioner
CN210861385U (en) Air conditioner indoor unit and air conditioner
JP6536970B2 (en) Air conditioner
KR200453512Y1 (en) Variable discharge type underfloor swirl diffuser
WO2020020166A1 (en) Air conditioner hanging unit
CN112283803A (en) Machine and air conditioner in air conditioning
KR100611881B1 (en) Blowing vane of diffuser for interior air-conditioning
CN219868145U (en) Wall-mounted air conditioner indoor unit
JPH06159783A (en) Blowoff chamber
CN212869981U (en) Indoor machine of air conditioner
JP3082181B2 (en) Underfloor air conditioning system
WO2020020167A1 (en) Hanging air conditioner
WO2016208009A1 (en) Indoor unit for air conditioner

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20221019

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20230823

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20230829

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20231006

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: 20240116

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20240123

R150 Certificate of patent or registration of utility model

Ref document number: 7426865

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150