JP7018009B2 - Underfloor air conditioning system - Google Patents

Underfloor air conditioning system Download PDF

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JP7018009B2
JP7018009B2 JP2018202656A JP2018202656A JP7018009B2 JP 7018009 B2 JP7018009 B2 JP 7018009B2 JP 2018202656 A JP2018202656 A JP 2018202656A JP 2018202656 A JP2018202656 A JP 2018202656A JP 7018009 B2 JP7018009 B2 JP 7018009B2
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岩田卓郎
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Takenaka Corp
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Description

本発明は、床下空間を仕切って形成された床下ダクト経路に空調装置で生成された空調空気を供給し、当該床下ダクト経路を通過した空調空気を床面に設けられた床面吹出部から室内空間に吹き出すアンダーフロア型空調システムに関する。 In the present invention, the conditioned air generated by the air-conditioning device is supplied to the underfloor duct path formed by partitioning the underfloor space, and the conditioned air that has passed through the underfloor duct path is supplied to the room from the floor blowout portion provided on the floor. Regarding the underfloor type air conditioning system that blows out into the space.

従来、床下空間を仕切って形成された床下ダクト経路に空調装置で生成された空調空気を供給し、当該床下ダクト経路を通過した空調空気を床面に設けられた床面吹出部から室内空間に吹き出すアンダーフロア型空調システムが知られている(特許文献1を参照)。この特許文献1に記載の空調システムでは、床下ダクト経路が複数設けられていると共に、当該複数の床下ダクト経路が互いに平行に並設されている。 Conventionally, the conditioned air generated by the air-conditioning device is supplied to the underfloor duct path formed by partitioning the underfloor space, and the conditioned air that has passed through the underfloor duct path is sent from the floor blowout portion provided on the floor to the indoor space. An underfloor type air conditioning system that blows out is known (see Patent Document 1). In the air conditioning system described in Patent Document 1, a plurality of underfloor duct paths are provided, and the plurality of underfloor duct paths are arranged side by side in parallel with each other.

特開平10-054576号公報Japanese Unexamined Patent Publication No. 10-054576

しかしながら、特許文献1に記載の空調システムでは、複数の床下ダクト経路の夫々における空調空気の流れ方向は、全ての床下ダクト経路において並行流とされている。よって、床下空間全体において、空調空気の流れ方向に沿って形成される温度勾配が夫々の床下ダクト経路において同じ方向に沿って発生することから、床面全体の温度ムラが生じる。更には、夫々の床下ダクト経路の下流側に位置する床面吹出部が床面の一端側のみに配置されているので、これら床面吹出部から室内空間に対して空調空気が偏った状態で吹出されることになって、室内空間全体を均一に空調できないという問題があった。
この実情に鑑み、本発明の主たる課題は、室内空間全体を均一に空調できるアンダーフロア型空調システムを提供する点にある。
However, in the air-conditioning system described in Patent Document 1, the flow directions of the conditioned air in each of the plurality of underfloor duct paths are parallel flows in all the underfloor duct paths. Therefore, in the entire underfloor space, the temperature gradient formed along the flow direction of the conditioned air is generated along the same direction in each underfloor duct path, so that the temperature unevenness of the entire floor surface occurs. Furthermore, since the floor outlets located on the downstream side of each underfloor duct path are arranged only on one end side of the floor, the conditioned air is biased from these floor outlets to the interior space. There was a problem that the entire interior space could not be uniformly air-conditioned because it was blown out.
In view of this situation, a main object of the present invention is to provide an underfloor type air conditioning system capable of uniformly air-conditioning the entire interior space.

本発明の第1特徴構成は、床下空間を仕切って形成された床下ダクト経路に空調装置で生成された空調空気を供給し、当該床下ダクト経路を通過した空調空気を床面に設けられた床面吹出部から室内空間に吹き出すアンダーフロア型空調システムであって、
前記床下ダクト経路が複数設けられていると共に、当該複数の床下ダクト経路が互いに平行に並設され、
前記複数の床下ダクト経路の夫々における空調空気の流れ方向が互いに隣接する前記床下ダクト経路間において対向流となるように設定されており、
前記複数の床下ダクト経路の長手方向の両端側に当該床下ダクト経路を通過した空調空気が流入するリターンチャンバが配置され、
前記リターンチャンバに前記空調装置が配置されていると共に、当該空調装置が前記リターンチャンバから還気を取り込んで空調空気を生成する点にある。
The first characteristic configuration of the present invention is to supply the conditioned air generated by the air-conditioning device to the underfloor duct path formed by partitioning the underfloor space, and to provide the conditioned air passing through the underfloor duct path on the floor surface. It is an underfloor type air conditioning system that blows out from the surface outlet to the indoor space.
A plurality of the underfloor duct paths are provided, and the plurality of underfloor duct paths are arranged in parallel with each other.
The flow directions of the conditioned air in each of the plurality of underfloor duct paths are set to be countercurrent between the adjacent underfloor duct paths .
Return chambers into which conditioned air that has passed through the underfloor duct paths flow in are arranged on both ends in the longitudinal direction of the plurality of underfloor duct paths.
The air conditioner is arranged in the return chamber, and the air conditioner takes in return air from the return chamber to generate air conditioning air .

本構成によれば、複数の床下ダクト経路の夫々における空調空気の流れ方向が互いに隣接する床下ダクト経路間において対向流とされているので、床下ダクト経路での空調空気の流れ方向に沿って形成される温度勾配が床下空間全体において交互に反転されて配置されることになる。このことで、床面全体の温度ムラが抑制される上に、室内空間全体に亘って比較的均一な温度の空調空気を床面吹出部から吹き出すことができる。
従って、本発明により、室内空間全体を均一に空調できるアンダーフロア型空調システムを提供することができる。
According to this configuration, since the flow directions of the conditioned air in each of the plurality of underfloor duct paths are opposed to each other between the adjacent underfloor duct paths, they are formed along the flow direction of the conditioned air in the underfloor duct paths. The temperature gradients to be generated will be alternately inverted and arranged in the entire underfloor space. As a result, the temperature unevenness of the entire floor surface is suppressed, and the conditioned air having a relatively uniform temperature can be blown out from the floor surface blowing portion over the entire interior space.
Therefore, according to the present invention, it is possible to provide an underfloor type air conditioning system capable of uniformly air-conditioning the entire interior space.

更に、本構成によれば、複数の床下ダクト経路の長手方向の両端側に配置された夫々のリターンチャンバに対して、床面吹出部から室内空間に吹き出されずに夫々の床下ダクト経路を通過した空調空気を流入させることができるので、床面吹出部から室内空間に吹き出す空調空気の量を適切なものに制限しながら、充分な量の空調空気を床下ダクト経路に通過させて床面温度を適温に調整することができる。しかも、リターンチャンバに配置された空調装置では、リターンチャンバから還気を取り込むためのダクト等が不要又は簡略化できることに加えて、リターンチャンバに流入した空調空気を還気として取り込んで比較的低負荷で空調空気を生成することができる。 Further, according to this configuration, the return chambers arranged on both ends in the longitudinal direction of the plurality of underfloor duct paths pass through the respective underfloor duct paths without being blown out from the floor blowout portion into the indoor space. Since the conditioned air can be flowed in, a sufficient amount of conditioned air is allowed to pass through the underfloor duct path while limiting the amount of conditioned air blown from the floor outlet to the indoor space to the floor temperature. Can be adjusted to an appropriate temperature. Moreover, the air conditioner arranged in the return chamber does not require or simplifies a duct or the like for taking in the return air from the return chamber, and also takes in the air conditioning air flowing into the return chamber as the return air to have a relatively low load. Can generate air-conditioned air.

本発明の第特徴構成は、前記複数の床下ダクト経路の夫々に対して個別に前記空調装置が配置されている点にある。 The second characteristic configuration of the present invention is that the air conditioner is individually arranged for each of the plurality of underfloor duct paths.

本構成によれば、複数の床下ダクト経路の長手方向の両端側に配置された夫々のリターンチャンバにおいて、複数の床下ダクト経路の並設方向(床下ダクト経路の幅方向)に沿った全体に亘って夫々の床下ダクト経路を通過した空調空気が略均一に流入することになるので、リターンチャンバ全体の空気温度が略均一に保たれる。よって、このようなリターンチャンバにおいて、複数の床下ダクト経路の夫々に対して個別に空調装置が配置されているので、空調装置から床下ダクト経路に空調空気を供給するためのダクトを不要又は簡略化することができることに加えて、各空調装置において略同等の温度の還気をリターンチャンバから取り込んで略均一な温度の空調空気を生成して夫々の床下ダクト経路に供給することができる。 According to this configuration, in each return chamber arranged on both ends in the longitudinal direction of the plurality of underfloor duct paths, the entire area is along the parallel direction (width direction of the underfloor duct paths) of the plurality of underfloor duct paths. Since the conditioned air that has passed through the underfloor duct paths flows in substantially uniformly, the air temperature of the entire return chamber is maintained substantially uniformly. Therefore, in such a return chamber, since the air conditioning device is individually arranged for each of the plurality of underfloor duct paths, a duct for supplying air-conditioned air from the air conditioning device to the underfloor duct path is unnecessary or simplified. In addition to being able to, in each air conditioner, return air of substantially the same temperature can be taken in from the return chamber to generate air conditioner air having a substantially uniform temperature and supplied to each underfloor duct path.

本発明の第特徴構成は、前記複数の床下ダクト経路の夫々において、一端側に前記空調装置から空調空気が供給される空調空気流入部が設けられていると共に、他端側の床面に前記床面吹出部が設けられている点にある。 In the third characteristic configuration of the present invention, in each of the plurality of underfloor duct paths, an conditioned air inflow portion to which conditioned air is supplied from the air conditioner is provided on one end side, and the floor surface on the other end side is provided. The point is that the floor blowing portion is provided.

本構成によれば、夫々の床下ダクト経路において、空調空気の流れ方向に沿った上流側に位置する一端側の空気流入部から、空調空気の流れ方向の下流側に位置する他端側の床面吹出部に亘る略全長に亘って、空調空気を通過させることができる。よって、床下ダクト経路の長手方向に沿って床面全体を適温に維持することができる。しかも、夫々の床下ダクト経路における空調空気の流れ方向が、互いに隣接する床下ダクト経路間において対向流となるように設定されていることから、夫々の床下ダクト経路の下流側に位置する床面吹出部が床面の両端側において略均一に分散配置されることになる。このことで、当該略均一に分散配置された床面吹出部から室内空間に空調空気を吹き出すことで、室内空間全体を一層均一に空調することができる。 According to this configuration, in each underfloor duct path, the floor on the other end side located on the downstream side in the flow direction of the conditioned air from the air inflow portion on the one end side located on the upstream side along the flow direction of the conditioned air. Air-conditioned air can pass through the entire length of the surface blowout portion. Therefore, the entire floor surface can be maintained at an appropriate temperature along the longitudinal direction of the underfloor duct path. Moreover, since the flow direction of the conditioned air in each underfloor duct path is set to be a countercurrent flow between the adjacent underfloor duct paths, the floor blowout located on the downstream side of each underfloor duct path. The portions are arranged substantially uniformly on both ends of the floor surface. As a result, the entire interior space can be air-conditioned more uniformly by blowing air-conditioned air into the interior space from the floor surface outlets that are substantially uniformly distributed.

本実施形態のアンダーフロア型空調システムの概略構成図Schematic block diagram of the underfloor type air conditioning system of this embodiment 第1床下ダクト経路の空気の流れ方向に沿った縦断面図Longitudinal section along the air flow direction of the first underfloor duct path 第2床下ダクト経路の空気の流れ方向に沿った縦断面図Longitudinal section along the air flow direction of the second underfloor duct path

本発明の実施形態について図面に基づいて説明する。
本実施形態のアンダーフロア型空調システム(以下、「本空調システム」と呼ぶ。)は、図1に示すように、空調装置4で生成された空調空気SAを床下空間2に通流させ、当該通流後の空調空気SAを床面1に設けられた床面吹出口1a(床面吹出部の一例)から室内空間10(図2及び図3参照)に吹き出す空調システムとして構成されている。
An embodiment of the present invention will be described with reference to the drawings.
In the underfloor type air-conditioning system of the present embodiment (hereinafter, referred to as “the main air-conditioning system”), as shown in FIG. 1, the air-conditioned air SA generated by the air-conditioning device 4 is passed through the underfloor space 2 and the air-conditioned air SA is passed through the underfloor space 2. It is configured as an air-conditioning system that blows out the conditioned air SA after the flow from the floor surface outlet 1a (an example of the floor surface outlet portion) provided on the floor surface 1 to the indoor space 10 (see FIGS. 2 and 3).

床下空間2は、図2及び図3に示すように、床スラブ25の上方に離間して敷設された床面1を構成する床パネル20により、室内空間10と区画された空間として形成されている。
空調装置4は、取り込んだ還気RAを所定の設定空調温度に冷却又は加熱し、当該設定空調温度に冷却又は加熱後の冷風又は温風を空調空気SAとして吹き出すパッケージ型の空調装置として構成されている。尚、本実施形態では、空調装置4をパッケージ型の空調装置として構成したが、ファンコイルユニットや他の形式の空調装置を利用することもできる。
As shown in FIGS. 2 and 3, the underfloor space 2 is formed as a space partitioned from the indoor space 10 by the floor panels 20 constituting the floor surface 1 laid apart above the floor slab 25. There is.
The air conditioner 4 is configured as a package type air conditioner that cools or heats the taken-in return air RA to a predetermined set air conditioning temperature and blows out cold air or hot air after cooling or heating to the set air conditioning temperature as air conditioning air SA. ing. In the present embodiment, the air conditioner 4 is configured as a package type air conditioner, but a fan coil unit or another type of air conditioner can also be used.

図1に示すように、床下空間2には、当該床下空間2を縦仕切板などで仕切って形成された複数の床下ダクト経路3が互いに平行に並設されている。そして、これら複数の床下ダクト経路3の夫々における空調空気SAの流れ方向が、互いに隣接する床下ダクト経路3間において対向流となるように設定されている。
即ち、図1中の右向きに空調空気SAが通流する第1床下ダクト経路3Aと、図1中の左向きに空調空気SAが通流する第2床下ダクト経路3Bとの夫々が、図1中の縦方向に沿って交互に並設されている。
As shown in FIG. 1, in the underfloor space 2, a plurality of underfloor duct paths 3 formed by partitioning the underfloor space 2 with a vertical partition plate or the like are arranged side by side in parallel with each other. The flow directions of the conditioned air SA in each of the plurality of underfloor duct paths 3 are set to be countercurrent between the adjacent underfloor duct paths 3.
That is, the first underfloor duct path 3A through which the conditioned air SA flows to the right in FIG. 1 and the second underfloor duct path 3B through which the conditioned air SA flows to the left in FIG. 1 are shown in FIG. They are arranged side by side alternately along the vertical direction of.

図2にも示すように、上記夫々の第1床下ダクト経路3Aの左端側には、設定空調温度に冷却又は加熱された空調空気SAが空調装置4から流入する流入口3a(空調空気流入部の一例)が開口されている。一方、上記夫々の第1床下ダクト経路3Aの右端側には、空調空気SAを外部に流出させる流出口3bが開口されている。
よって、この第1床下ダクト経路3Aでは、右向きに通流する空調空気SAが保有する冷熱又は温熱が徐々に床パネル20等に奪われることによって、左端側が設定空調温度近傍の温度となり右端側が室温近傍の温度となるような温度勾配が形成されることになる。
As shown in FIG. 2, on the left end side of each of the first underfloor duct paths 3A, an inflow port 3a (air-conditioned air inflow section) into which air-conditioned air SA cooled or heated to a set air-conditioning temperature flows in from the air-conditioning device 4 An example) is open. On the other hand, an outlet 3b for letting the conditioned air SA flow out is opened on the right end side of each of the first underfloor duct paths 3A.
Therefore, in the first underfloor duct path 3A, the cold heat or hot heat possessed by the conditioned air SA flowing to the right is gradually taken away by the floor panel 20 or the like, so that the left end side becomes a temperature near the set conditioned air conditioning temperature and the right end side becomes room temperature. A temperature gradient will be formed so that the temperature is close to the temperature.

図3にも示すように、上記夫々の第2床下ダクト経路3Bの右端側には、設定空調温度に冷却又は加熱された空調空気SAが外部から流入する流入口3a(空調空気流入部の一例)が開口されている。一方、上記夫々の第2床下ダクト経路3Bの左端側には、空調空気SAを外部に流出させる流出口3bが開口されている。
よって、この第2床下ダクト経路3Bでは、左向きに通流する空調空気SAが保有する冷熱又は温熱が徐々に床パネル20等に奪われることによって、右端側が設定空調温度近傍の温度となり左端側が室温近傍の温度となるような温度勾配が形成されることになる。
As shown in FIG. 3, on the right end side of each of the second underfloor duct paths 3B, an inflow port 3a (an example of an air-conditioned air inflow section) into which air-conditioned air SA cooled or heated to a set air-conditioned temperature flows in from the outside. ) Is open. On the other hand, an outlet 3b for letting the conditioned air SA flow out is opened on the left end side of each of the second underfloor duct paths 3B.
Therefore, in the second underfloor duct path 3B, the cold heat or hot heat possessed by the conditioned air SA flowing to the left is gradually taken away by the floor panel 20 or the like, so that the right end side becomes a temperature near the set conditioned air conditioning temperature and the left end side becomes room temperature. A temperature gradient will be formed so that the temperature is close to the temperature.

以上のような構成により、本空調システムでは、床下空間2全体において、交互に配置された第1床下ダクト経路3A及び第2床下ダクト経路3Bの夫々で形成される温度勾配が、図1中の縦方向に沿って交互に反転されて配置されることになる。このことで、床面1全体の温度ムラが抑制される上に、室内空間10全体に亘って比較的均一な温度の空調空気SAが床面吹出口1aから吹出されることになる。 With the above configuration, in this air conditioning system, in the entire underfloor space 2, the temperature gradients formed by the alternately arranged first underfloor duct paths 3A and the second underfloor duct paths 3B are shown in FIG. They will be alternately inverted and arranged along the vertical direction. As a result, the temperature unevenness of the entire floor surface 1 is suppressed, and the conditioned air SA having a relatively uniform temperature over the entire interior space 10 is blown out from the floor surface outlet 1a.

図1に示すように、図1中の上下方向に並設された複数の床下ダクト経路3の長手方向(図1中の左右方向)の両端側には、当該床下ダクト経路3を通過した空調空気SAが還気RAとして流入するリターンチャンバ5が夫々配置されている。即ち、図1中の複数の床下ダクト経路3の左端側には、当該複数の床下ダクト経路3の左端全体に隣接する状態で上下方向に延びる第1リターンチャンバ5Aが区画形成されている。一方、図1中の複数の床下ダクト経路3の右端側には、当該複数の床下ダクト経路3の右端全体に隣接する状態で上下方向に延びる第2リターンチャンバ5Bが区画形成されている。 As shown in FIG. 1, air conditioning that has passed through the underfloor duct paths 3 on both ends in the longitudinal direction (left-right direction in FIG. 1) of a plurality of underfloor duct paths 3 juxtaposed in the vertical direction in FIG. Return chambers 5 into which air SA flows in as return air RA are arranged respectively. That is, on the left end side of the plurality of underfloor duct paths 3 in FIG. 1, a first return chamber 5A extending in the vertical direction is formed in a state adjacent to the entire left end of the plurality of underfloor duct paths 3. On the other hand, on the right end side of the plurality of underfloor duct paths 3 in FIG. 1, a second return chamber 5B extending in the vertical direction is formed in a state adjacent to the entire right end of the plurality of underfloor duct paths 3.

更に、夫々のリターンチャンバ5に空調装置4が配置されていると共に、当該空調装置4がリターンチャンバ5から還気RAを取り込んで空調空気SAを生成するように構成されている。
即ち、第1リターンチャンバ5Aには、上記空調装置4として、夫々の第1床下ダクト経路3Aに空調空気SAを供給する複数の第1空調装置4Aが、当該第1床下ダクト経路3A毎に個別に配置されている。そして、この第1空調装置4Aは、それが配置された第1リターンチャンバ5Aから還気RAを取り込むように構成されている。
同様に、第2リターンチャンバ5Bには、上記空調装置4として、夫々の第2床下ダクト経路3Bに空調空気SAを供給する複数の第2空調装置4Bが、当該第2床下ダクト経路3B毎に個別に配置されている。そして、この第2空調装置4Bは、それが配置された第2リターンチャンバ5Bから還気RAを取り込むように構成されている。
また、図2及び図3に示すように、上記夫々のリターンチャンバ5A,5Bは、内部に空調装置4を設置するための空間を確保するために、床面1よりも上方に突出するボックス状に形成されている、また、上記夫々のリターンチャンバ5A,5Bにおいて室内空間10との境界部に設けられた天面等の壁面には、当該室内空間10から還気RAを取り込むための還気取込口5aが設けられている。
Further, an air conditioner 4 is arranged in each return chamber 5, and the air conditioner 4 is configured to take in the return air RA from the return chamber 5 and generate air conditioning air SA.
That is, in the first return chamber 5A, as the air conditioner 4, a plurality of first air conditioners 4A for supplying air conditioning air SA to each first underfloor duct path 3A are individually provided for each of the first underfloor duct paths 3A. Is located in. The first air conditioner 4A is configured to take in the return air RA from the first return chamber 5A in which the first air conditioner 4A is arranged.
Similarly, in the second return chamber 5B, as the air conditioner 4, a plurality of second air conditioners 4B for supplying air conditioning air SA to each of the second underfloor duct paths 3B are provided for each of the second underfloor duct paths 3B. They are arranged individually. The second air conditioner 4B is configured to take in the return air RA from the second return chamber 5B in which the second air conditioner 4B is arranged.
Further, as shown in FIGS. 2 and 3, each of the return chambers 5A and 5B has a box shape protruding above the floor surface 1 in order to secure a space for installing the air conditioner 4 inside. On the wall surface such as the top surface provided at the boundary with the indoor space 10 in each of the return chambers 5A and 5B, the return air for taking in the return air RA from the indoor space 10 is formed. An intake port 5a is provided.

以上のような構成により、第1床下ダクト経路3Aでは、図2に示すように、左端側の第1リターンチャンバ5Aに個別に配置された第1空調装置4Aから流入口3aを介して空調空気SAが供給される。そして、床面吹出口1aから室内空間10に流出することなく第1床下ダクト経路3Aを通過した空調空気SAが流出口3bを介して右端側の第2リターンチャンバ5Bに流出することになる。
同様に、第2床下ダクト経路3Bでは、図3に示すように、右端側の第2リターンチャンバ5Bに個別に配置された第2空調装置4Bから流入口3aを介して空調空気SAが供給される。そして、床面吹出口1aから室内空間10に流出することなく第2床下ダクト経路3Bを通過した空調空気SAが流出口3bを介して左端側の第2リターンチャンバ5Bに流出することになる。
With the above configuration, in the first underfloor duct path 3A, as shown in FIG. 2, conditioned air from the first air conditioner 4A individually arranged in the first return chamber 5A on the left end side via the inflow port 3a. SA is supplied. Then, the conditioned air SA that has passed through the first underfloor duct path 3A without flowing out from the floor surface outlet 1a to the indoor space 10 will flow out to the second return chamber 5B on the right end side via the outlet 3b.
Similarly, in the second underfloor duct path 3B, as shown in FIG. 3, the conditioned air SA is supplied from the second air conditioner 4B individually arranged in the second return chamber 5B on the right end side via the inflow port 3a. To. Then, the conditioned air SA that has passed through the second underfloor duct path 3B without flowing out from the floor surface outlet 1a to the indoor space 10 will flow out to the second return chamber 5B on the left end side via the outlet 3b.

また、上記夫々の床下ダクト経路3A,3Bにおいて、供給された空調空気SAの一部が床面吹出口1aから室内空間10に吹出され、同空調空気SAの残部が夫々のリターンチャンバ5A,5Bに流出することになる。よって、床面吹出口1aから室内空間10に吹き出す空調空気SAの量を適切なものに制限しながら、充分な量の空調空気SAを通過させて、床面1の温度を適温に調整できるようになる。しかも、夫々のリターンチャンバ5A,5Bに配置された夫々の空調装置4A,4Bでは、それが配置されたリターンチャンバ5A,5Bから還気RAを取り込むためのダクト等が不要となる。よって、当該リターンチャンバ5A,5Bに流入した空調空気SAを還気RAとして取り込んで比較的低負荷で空調空気SAを生成できるようになる。 Further, in each of the underfloor duct paths 3A and 3B, a part of the supplied conditioned air SA is blown out from the floor surface outlet 1a into the indoor space 10, and the rest of the conditioned air SA is the return chambers 5A and 5B, respectively. Will be leaked to. Therefore, the temperature of the floor surface 1 can be adjusted to an appropriate temperature by passing a sufficient amount of the conditioned air SA while limiting the amount of the conditioned air SA blown out from the floor surface outlet 1a to the indoor space 10. become. Moreover, the air conditioners 4A and 4B arranged in the return chambers 5A and 5B do not require a duct or the like for taking in the return air RA from the return chambers 5A and 5B in which the air conditioners 4A and 4B are arranged. Therefore, the conditioned air SA flowing into the return chambers 5A and 5B can be taken in as the return air RA to generate the conditioned air SA with a relatively low load.

更に、夫々のリターンチャンバ5A,5Bにおいて、複数の床下ダクト経路3A,3Bの並設方向(図1中の縦方向)に沿った全体に亘って、夫々の床下ダクト経路3A,3Bから空調空気が流出する流出口3bが略均等に配置されており、当該夫々の流出口3bから空調空気SAが略均一に流入することになる。すると、リターンチャンバ5A,5B全体の空気温度が略均一に保たれる。よって、夫々のリターンチャンバ5A,5Bにおいて、夫々の床下ダクト経路3A,3B個別の空調装置4A,4Bが夫々配置されているので、夫々の空調装置4A,4Bから夫々の床下ダクト経路3A,3Bに空調空気SAを供給するためのダクトも不要となる。よって、各空調装置4A,4Bにおいて略同等の温度の還気RAをリターンチャンバ5A,5Bから取り込んで略均一な温度の空調空気SAを生成して夫々の床下ダクト経路3A,3Bに供給できるようになる。 Further, in each of the return chambers 5A and 5B, conditioned air is provided from the respective underfloor duct paths 3A and 3B over the entire area along the parallel direction (vertical direction in FIG. 1) of the plurality of underfloor duct paths 3A and 3B. The outflow outlets 3b are arranged substantially evenly, and the conditioned air SA flows in substantially uniformly from the respective outlets 3b. Then, the air temperature of the entire return chambers 5A and 5B is kept substantially uniform. Therefore, since the individual air conditioners 4A and 4B of the underfloor duct paths 3A and 3B are arranged in the return chambers 5A and 5B, the underfloor duct paths 3A and 3B are arranged from the air conditioners 4A and 4B, respectively. There is no need for a duct for supplying air-conditioned air SA. Therefore, in each of the air-conditioning devices 4A and 4B, the return air RA having substantially the same temperature can be taken in from the return chambers 5A and 5B to generate the air-conditioned air SA having a substantially uniform temperature and can be supplied to the respective underfloor duct paths 3A and 3B. become.

夫々の床下ダクト経路3A,3Bにおいて、図1に示すように、空調空気SAが流入する流入口3aが配置される一端側とは反対の他端側の床面1に床面吹出口1aが設けられている。即ち、左端側に流入口3aが設けられた第1床下ダクト経路3Aでは、図2に示すように、右端側の流出口3b近傍の床面1に床面吹出口1aが設けられている。同様に、右端側に流入口3aが設けられた第2床下ダクト経路3Bでは、図3に示すように、左端側の流出口3b近傍の床面1に床面吹出口1aが設けられている。 In each of the underfloor duct paths 3A and 3B, as shown in FIG. 1, the floor surface outlet 1a is located on the floor surface 1 on the other end side opposite to the one end side where the inflow port 3a into which the conditioned air SA flows is arranged. It is provided. That is, in the first underfloor duct path 3A provided with the inflow port 3a on the left end side, as shown in FIG. 2, the floor surface outlet 1a is provided on the floor surface 1 in the vicinity of the outflow port 3b on the right end side. Similarly, in the second underfloor duct path 3B in which the inflow port 3a is provided on the right end side, the floor surface outlet 1a is provided on the floor surface 1 in the vicinity of the outflow port 3b on the left end side, as shown in FIG. ..

このような構成により、夫々の床下ダクト経路3A,3Bにおいて流入口3aから床面吹出口1aに亘る略全長に亘って、空調空気SAが通過することになる。よって、床下ダクト経路3A,3Bの長手方向に沿って床面1全体が適温に維持される。しかも、夫々の床下ダクト経路3A,3Bにおける空調空気SAの流れ方向が、互いに隣接する床下ダクト経路3A,3B間において対向流となる。このことから、夫々の床下ダクト経路3A,3Bの下流側に位置する床面吹出口1aが床面1の両端側において略均一に分散配置されることになる。よって、室内空間10では、略均一に分散配置された床面吹出口1aから空調空気SAが吹出されて、一層均一に空調されることになる。 With such a configuration, the conditioned air SA passes through the underfloor duct paths 3A and 3B over substantially the entire length from the inflow port 3a to the floor surface outlet 1a. Therefore, the entire floor surface 1 is maintained at an appropriate temperature along the longitudinal direction of the underfloor duct paths 3A and 3B. Moreover, the flow direction of the conditioned air SA in each of the underfloor duct paths 3A and 3B becomes a countercurrent flow between the adjacent underfloor duct paths 3A and 3B. From this, the floor surface outlets 1a located on the downstream side of the underfloor duct paths 3A and 3B are arranged substantially uniformly on both ends of the floor surface 1. Therefore, in the indoor space 10, the conditioned air SA is blown out from the floor surface outlets 1a which are substantially uniformly distributed, and the conditioned air is more uniformly conditioned.

〔別実施形態〕
本発明の他の実施形態について説明する。尚、以下に説明する各実施形態の構成は、それぞれ単独で適用することに限らず、他の実施形態の構成と組み合わせて適用することも可能である。
[Another Embodiment]
Other embodiments of the present invention will be described. It should be noted that the configurations of the respective embodiments described below are not limited to being applied independently, but can also be applied in combination with the configurations of other embodiments.

(1)上記実施形態では、複数の床下ダクト経路3A,3Bの夫々を通過した空調空気SAが流入するリターンチャンバ5A,5Bを、当該複数の床下ダクト経路3A,3Bの両端側に設けた。しかし、このリターンチャンバ5A,5Bの有無や形状については適宜変更することができる。例えば、リターンチャンバ5A,5Bを省略して、夫々床下ダクト経路3A,3Bを通過した空調空気SAを隣接する空調装置4に還気RAとして直接導入するように構成することもできる。 (1) In the above embodiment, return chambers 5A and 5B into which the conditioned air SA that has passed through the plurality of underfloor duct paths 3A and 3B flow in are provided on both ends of the plurality of underfloor duct paths 3A and 3B. However, the presence / absence and shape of the return chambers 5A and 5B can be appropriately changed. For example, the return chambers 5A and 5B may be omitted, and the air-conditioned air SA that has passed through the underfloor duct paths 3A and 3B may be directly introduced into the adjacent air-conditioning device 4 as the return air RA.

(2)上記実施形態では、複数の床下ダクト経路3A,3Bの夫々に対して個別に空調装置4を配置したが、一の空調装置4から2以上の床下ダクト経路3A,3Bに対して空調空気SAを供給するように構成しても構わない。 (2) In the above embodiment, the air conditioner 4 is individually arranged for each of the plurality of underfloor duct paths 3A and 3B, but one air conditioner 4 is used for air conditioning for two or more underfloor duct paths 3A and 3B. It may be configured to supply air SA.

(3)上記実施形態では、複数の床下ダクト経路3A,3Bの夫々において、流入口3aとは反対側の流出口3b近傍の床面1に床面吹出口1aを設けたが、この床面吹出口1aの設置位置や設置個数については適宜変更することができる。例えば、床下ダクト経路3A,3B全体に亘って複数の床面吹出口1aを分散配置することもできる。 (3) In the above embodiment, in each of the plurality of underfloor duct paths 3A and 3B, the floor surface outlet 1a is provided on the floor surface 1 near the outlet 3b on the opposite side of the inlet 3a. The installation position and the number of outlets 1a can be changed as appropriate. For example, a plurality of floor surface outlets 1a can be distributed and arranged over the entire underfloor duct paths 3A and 3B.

1 床面
1a 床面吹出口(床面吹出部)
2 床下空間
3 床下ダクト経路
3A 第1床下ダクト経路(床下ダクト経路)
3B 第2床下ダクト経路(床下ダクト経路)
3a 流入口(空調空気流入部)
4 空調装置
4A 第1空調装置(空調装置)
4B 第2空調装置(空調装置)
5 リターンチャンバ
5A 第1リターンチャンバ(リターンチャンバ)
5B 第2リターンチャンバ(リターンチャンバ)
10 室内空間
RA 還気
SA 空調空気
1 Floor surface 1a Floor surface outlet (floor surface outlet)
2 Underfloor space 3 Underfloor duct route 3A 1st underfloor duct route (underfloor duct route)
3B 2nd underfloor duct route (underfloor duct route)
3a Inflow port (air-conditioned air inflow section)
4 Air conditioner 4A 1st air conditioner (air conditioner)
4B 2nd air conditioner (air conditioner)
5 Return chamber 5A 1st return chamber (return chamber)
5B 2nd return chamber (return chamber)
10 Interior space RA Return air SA Air-conditioned air

Claims (3)

床下空間を仕切って形成された床下ダクト経路に空調装置で生成された空調空気を供給し、当該床下ダクト経路を通過した空調空気を床面に設けられた床面吹出部から室内空間に吹き出すアンダーフロア型空調システムであって、
前記床下ダクト経路が複数設けられていると共に、当該複数の床下ダクト経路が互いに平行に並設され、
前記複数の床下ダクト経路の夫々における空調空気の流れ方向が互いに隣接する前記床下ダクト経路間において対向流となるように設定されており、
前記複数の床下ダクト経路の長手方向の両端側に当該床下ダクト経路を通過した空調空気が流入するリターンチャンバが配置され、
前記リターンチャンバに前記空調装置が配置されていると共に、当該空調装置が前記リターンチャンバから還気を取り込んで空調空気を生成するアンダーフロア型空調システム。
An underfloor that supplies conditioned air generated by an air-conditioning device to the underfloor duct path formed by partitioning the underfloor space and blows the conditioned air that has passed through the underfloor duct path into the indoor space from the floor blowout portion provided on the floor. It ’s a floor-type air conditioning system.
A plurality of the underfloor duct paths are provided, and the plurality of underfloor duct paths are arranged in parallel with each other.
The flow directions of the conditioned air in each of the plurality of underfloor duct paths are set to be countercurrent between the adjacent underfloor duct paths .
Return chambers into which conditioned air that has passed through the underfloor duct paths flow in are arranged on both ends in the longitudinal direction of the plurality of underfloor duct paths.
An underfloor type air-conditioning system in which the air-conditioning device is arranged in the return chamber, and the air-conditioning device takes in return air from the return chamber to generate air-conditioned air .
前記複数の床下ダクト経路の夫々に対して個別に前記空調装置が配置されている請求項に記載のアンダーフロア型空調システム。 The underfloor type air conditioning system according to claim 1 , wherein the air conditioner is individually arranged for each of the plurality of underfloor duct paths. 前記複数の床下ダクト経路の夫々において、一端側に前記空調装置から空調空気が供給される空調空気流入部が設けられていると共に、他端側の床面に前記床面吹出部が設けられている請求項1又は2に記載のアンダーフロア型空調システム。 In each of the plurality of underfloor duct paths, an conditioned air inflow portion to which conditioned air is supplied from the air conditioner is provided on one end side, and the floor blowout portion is provided on the floor surface on the other end side. The underfloor type air conditioning system according to claim 1 or 2 .
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Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2000240957A (en) 1999-02-22 2000-09-08 Sunpot Co Ltd Floor heater for free access floor

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JPH0517541Y2 (en) * 1987-01-31 1993-05-11
JPS63267860A (en) * 1987-04-22 1988-11-04 Matsushita Electric Works Ltd Air conditioning panel
JP3664418B2 (en) * 1996-12-27 2005-06-29 東京瓦斯株式会社 Heating system
JPH11201480A (en) * 1998-01-19 1999-07-30 Toshiba Corp Air type floor heater

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000240957A (en) 1999-02-22 2000-09-08 Sunpot Co Ltd Floor heater for free access floor

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