JP2856237B2 - Air conditioning system - Google Patents
Air conditioning systemInfo
- Publication number
- JP2856237B2 JP2856237B2 JP4356918A JP35691892A JP2856237B2 JP 2856237 B2 JP2856237 B2 JP 2856237B2 JP 4356918 A JP4356918 A JP 4356918A JP 35691892 A JP35691892 A JP 35691892A JP 2856237 B2 JP2856237 B2 JP 2856237B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- low
- temperature
- conditioning system
- blown
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Other Air-Conditioning Systems (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建物の室内を空調する
ための空調システムに関し、特に低温冷熱源から送られ
る低温冷水によって空気を冷却し、この冷却された空気
を建物の室内に直接吹き出すようになされた空調システ
ムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning system for air-conditioning the interior of a building, and more particularly to cooling air with low-temperature cold water sent from a low-temperature cold heat source, and blowing the cooled air directly into the room of the building. To an air conditioning system made as such.
【０００２】[0002]
【従来の技術】一般の空調システムにおいては、冷凍機
などの冷熱源から７℃前後の冷水を空調機に供給し、こ
の冷水によって空気を１５〜１６℃程度に冷却し、この
１５〜１６℃程度の空気を室内に吹き出している。この
空調システムの場合、吹出し空気温度と室内温度との差
（以下、吹出し空気温度差と称する）は、室内温度を２
６℃前後とすると約１０ｄｅｇである。2. Description of the Related Art In a general air conditioning system, cold water of about 7 ° C. is supplied from a cold heat source such as a refrigerator to an air conditioner, and the air is cooled to about 15 to 16 ° C. by the cold water. A certain amount of air is blown into the room. In the case of this air conditioning system, the difference between the blown air temperature and the room temperature (hereinafter, referred to as the blown air temperature difference) is obtained by subtracting the room temperature by 2
If it is about 6 ° C., it is about 10 deg.
【０００３】また、氷蓄熱などの低温冷熱源を用いた氷
蓄熱空調システムでは、低温冷熱源から送られる０〜４
℃の低温冷水を空調機に供給し、空気を１５〜１６℃程
度に冷却して室内に吹き出している。このように、従
来、いずれのシステムでも、室内に吹き出す空気の温度
は、室内環境の低下や吹出口での表面結露等の問題を生
じない１５〜１６℃程度に設定されていた。[0003] In an ice storage air conditioning system using a low-temperature cold heat source such as ice heat storage, 0 to 4 sent from the low-temperature cold heat source is used.
The low-temperature cold water of ℃ is supplied to the air conditioner, and the air is cooled to about 15 to 16 ℃ and blown into the room. As described above, in any of the conventional systems, the temperature of the air blown into the room is set to about 15 to 16 ° C., which does not cause a problem such as deterioration of the indoor environment and surface condensation at the outlet.
【０００４】[0004]
【発明が解決しようとする課題】ところで、近年、イン
テリジェントビルなどの高度情報化ビルでは、ＯＡ化の
進展が目覚ましく、これに伴いＯＡ機器などによる内部
発熱が増加している。しかしながら、従来の空調システ
ムでは、内部発熱の増大には送風量を増加させることで
対処せざるを得なかったため、送風量の増加により、フ
ァン・ダクトサイズが拡大し、設備費が増大するととも
に、ファン動力が増大するという問題があった。In recent years, in advanced information-oriented buildings such as intelligent buildings, OA has been remarkably progressing, and accompanying this, internal heat generated by OA equipment and the like has increased. However, in conventional air-conditioning systems, the increase in internal heat generation had to be dealt with by increasing the amount of air blow, so the increase in the amount of air blow increased the size of the fan duct and increased equipment costs. There was a problem that fan power increased.
【０００５】また、氷蓄熱空調システムにあっては、水
蓄熱方式のものに比較して冷熱蓄熱量が大きいため、蓄
熱槽容積の縮小化およびユニット化が可能であるなどの
メリットがある反面、設備費、動力費とも不利なのが現
状である。すなわち、これまで氷蓄熱空調システムは、
０〜４℃の低温冷水を供給できるという特長を持ちなが
ら、室内に吹き出す空気温度は従来空調レベルと同じ１
５〜１６℃程度であるため、その特長が有効活用されて
いなかったのが現状である。[0005] In addition, the ice storage air conditioning system has a large amount of cold heat storage as compared with the water heat storage system, and thus has the advantage that the heat storage tank volume can be reduced and the unit can be unitized. Currently, both equipment costs and power costs are disadvantageous. In other words, ice storage air conditioning systems
While having the feature of being able to supply low-temperature cold water of 0 to 4 ° C, the air temperature blown into the room is the same as the conventional air-conditioning level
Since the temperature is about 5 to 16 ° C., its features have not been effectively utilized at present.
【０００６】本発明は、上記課題に鑑みてなされたもの
であり、その目的とするところは、設備費や動力費など
を増大させることなく、特に高度情報化ビルにおける内
部発熱の増加の問題に対処できる空調システムを提供す
ることにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to solve the problem of an increase in internal heat generation in an advanced information-oriented building without increasing equipment costs and power costs. An object of the present invention is to provide an air-conditioning system that can cope with the situation.
【０００７】[0007]
【課題を解決するための手段】本発明の空調システム
は、低温冷水を４℃程度にして供給する低温冷熱源と、
この低温冷熱源から送られた低温冷水によって空気を１
２℃程度に冷却する空調機とからなるもので、斯かる空
調機では、空気を冷却する際に除湿を同時に行い、そし
てこの冷却除湿された空気を建物の天井吹出口から室内
へ直接吹き出すことで室内の空調を可能にしている。An air conditioning system according to the present invention comprises: a low-temperature chilled heat source for supplying low-temperature chilled water at about 4 ° C .;
The low-temperature chilled water sent from this low-temperature chilled heat source causes
It consists of an air conditioner that cools to about 2 ° C. In such an air conditioner, dehumidification is performed at the same time as air is cooled, and this cooled and dehumidified air is directly blown into the room from a ceiling outlet of a building. This enables indoor air conditioning.
【０００８】[0008]
【作用】上記構成の空調機において、低温冷熱源から送
られる４℃程度の低温冷水によって空気を１２℃程度に
冷却し同時に除湿することで効率よく冷温除湿風がつく
られ、しかも、この冷温除湿風は天井吹出口を介して室
内に直接吹き出される。このとき、空気が予め除湿され
ていることから、１２℃程度の低温の冷風にも拘らず、
天井内はもとより吹出口での表面結露等の問題を生じる
ことがない。したがって、除湿された低温の冷風を天井
から直接吹き出すようにしたことにより、室内天井から
床方向へ冷風が流下しその為送風量を増加させなくて空
調効率は高まり、設備費や動力費などを増大させること
なく、高度情報化ビルにおける内部発熱の増加の問題に
対処できる。In the air conditioner having the above structure, air is cooled to about 12 ° C. by low-temperature cold water of about 4 ° C. sent from a low-temperature cold heat source and dehumidified at the same time, so that cold-temperature dehumidified air is efficiently produced. The wind blows directly into the room through the ceiling outlet. At this time, since the air has been dehumidified in advance, despite the low temperature of about 12 ° C,
There is no problem such as condensation on the surface at the outlet as well as inside the ceiling. Therefore, by blowing the dehumidified low-temperature cold air directly from the ceiling, the cool air flows down from the indoor ceiling to the floor, thereby increasing the air-conditioning efficiency without increasing the amount of air blow, and reducing equipment and power costs. It is possible to address the problem of increased internal heat generation in advanced information-oriented buildings without increasing the size.
【０００９】[0009]
【実施例】以下、本発明の実施例を図面に基づいて詳細
に説明する。図１は、本発明による空調システムの一実
施例を示す構成図である。図１において、氷蓄熱槽など
の低温冷熱源１から供給される０〜４℃程度の低温冷水
は、冷水配管２を通して冷水循環ポンプ３によって空調
機４に直接送られる。空調機４は、その入口に空調機コ
イル５を、またこの空調機コイル５の後方に空調機ファ
ン６を装備している。なお、空調機ファン６を空調機コ
イル５の手前に配置する構成であっても良い。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram showing one embodiment of an air conditioning system according to the present invention. In FIG. 1, low-temperature chilled water of about 0 to 4 ° C. supplied from a low-temperature chilled heat source 1 such as an ice heat storage tank is directly sent to an air conditioner 4 by a chilled water circulation pump 3 through a chilled water pipe 2. The air conditioner 4 is provided with an air conditioner coil 5 at an entrance thereof and an air conditioner fan 6 behind the air conditioner coil 5. The air conditioner fan 6 may be arranged in front of the air conditioner coil 5.
【００１０】この空調機コイル５においては、４℃程度
の低温冷水との熱交換により、コイル入口の空気を１２
℃程度まで冷却する。この冷却の際には、除湿も同時に
行われる。空調機コイル５で冷却され、除湿された低温
冷風は、空調機ファン６によりダクト７を経由して送風
され、吹出口８より室内９に直接吹き出す。吹出口８と
しては、従来から一般的に用いられているアネモスタッ
ト・パン型などの拡散型吹出口やブリーズラインなどの
天井吹出口が用いられる。In the air conditioner coil 5, the air at the coil inlet is cooled by heat exchange with cold water of about 4 ° C.
Cool to about ° C. During this cooling, dehumidification is performed at the same time. The low-temperature cold air cooled and dehumidified by the air conditioner coil 5 is blown by the air conditioner fan 6 through the duct 7, and blows out directly from the outlet 8 into the room 9. As the outlet 8, a diffused outlet such as an anemostat pan type or a ceiling outlet such as a breathe line which is generally used conventionally is used.
【００１１】このように、低温冷熱源１からの０〜４℃
程度の低温冷水を空調機コイル５に直接供給し、この低
温冷水との熱交換によって空気冷却しつつ除湿すること
により５〜１２℃程度の低温冷風をつくりだし、この低
温冷風を直接室内９に吹き出すようにしたことにより、
吹出し空気温度差が、従来の空調システムの場合の１０
ｄｅｇから１５〜２０ｄｅｇに拡大する。ここで、室内
熱負荷が同じであるとすれば、吹出し空気温度差が従来
空調時の１．５〜２．０倍に拡大したことで、送風量を
５０〜７０％に低減できる。As described above, 0 to 4 ° C.
The low-temperature cold water of about 5 to 12 ° C. is directly supplied to the air conditioner coil 5 by heat exchange with the low-temperature cold water to perform dehumidification while cooling the air, and the low-temperature cold air is directly blown into the room 9. By doing so,
The difference in the temperature of the blown air is 10 in the case of the conventional air conditioning system.
Enlarge from deg to 15 to 20 deg. Here, assuming that the indoor heat load is the same, the blown air amount difference can be reduced to 50 to 70% by expanding the temperature difference of the blown air to 1.5 to 2.0 times that of the conventional air conditioning.
【００１２】すなわち、送風量Ｖ〔ｍ3 ／ｈ〕は、室内
顕熱負荷をＱROOM〔ｋｃａｌ／ｈ〕、吹出し空気温度差
をΔｔ〔ｄｅｇ〕とすると、次式で表される。That is, the blown air amount V [m 3 / h] is represented by the following equation, where Q ROOM [kcal / h] is the indoor sensible heat load, and Δt [deg] is the blown air temperature difference.
【数１】Ｖ＝ＱROOM／０．２４×１．２×Δｔ ここで、０．２４は空気の比熱〔ｋｃａｌ／ｋｇ℃〕、
１．２は空気の比重〔ｋｇ／ｍ3 〕である。この式から
求められるように、送風量Ｖは、従来空調時の５０〜７
０％で済むことになる。V = Q ROOM /0.24×1.2×Δt where 0.24 is the specific heat of air [kcal / kg ° C.],
1.2 is the specific gravity of air [kg / m 3 ]. As calculated from this equation, the air flow V is 50 to 7 in the conventional air conditioning.
It will be 0%.
【００１３】換言すれば、高度情報化ビルなど内部発熱
が大きい場合、同じ空調効果を得るためには従来よりも
送風量を増加させなければならなく、これに伴い設備費
や動力費などの増大が強いられていたのに対し、本発明
による空調システムによれば、除湿された低温の冷風を
吹き出すようにしたことにより、送風量を増加させなく
ても良いので、設備費や動力費などを増大させることな
く、高度情報化ビルにおける内部発熱の増加の問題に対
処できるのである。In other words, when the internal heat generation is large such as in an advanced information building, the amount of air to be blown must be increased in order to obtain the same air conditioning effect, which leads to an increase in equipment costs and power costs. In contrast, according to the air conditioning system of the present invention, since the dehumidified low-temperature cold air is blown out, it is not necessary to increase the amount of blown air, so that equipment costs and power costs are reduced. It is possible to address the problem of increased internal heat generation in advanced information-oriented buildings without increasing it.
【００１４】なお、上記実施例では、０〜４℃程度の低
温冷水によって空気を５〜１２℃程度に冷却するとした
が、この数値に限定されるものではなく、従来１５〜１
６℃程度に冷却していたのに対し、１４℃程度以下に冷
却することでそれ相応の効果を得ることができる。In the above embodiment, the air is cooled to about 5 to 12 ° C. by low-temperature cold water of about 0 to 4 ° C. However, the present invention is not limited to this value.
While cooling to about 6 ° C., cooling to about 14 ° C. or less can provide a corresponding effect.
【００１５】[0015]
【発明の効果】以上説明したように、本発明によれば、
４℃程度の低温冷水を用いて空調機において空気を１２
℃程度に冷却し同時に除湿するので空調機の作動効率が
高まるとともに、天井吹出口を介して低温除湿冷風を室
内に直接吹き出すのにもかかわらず天井内はもとより吹
出口周辺に結露を生じさせない。その上室内での空調効
率が向上する。従って、送風量を増加させなくても所望
の空調効果を得ることができるので、設備費や動力費な
どを増大させることなく、特に高度情報化ビルにおける
内部発熱の増加の問題に対処できるという効果がある。As described above, according to the present invention,
Using low-temperature cold water of about 4 ° C, air is
Since the air conditioner is cooled to about ° C. and dehumidified at the same time, the operation efficiency of the air conditioner is increased, and even though the low-temperature dehumidified cold air is directly blown into the room through the ceiling outlet, dew condensation does not occur in the ceiling and around the outlet. In addition, the air conditioning efficiency in the room is improved. Therefore, a desired air-conditioning effect can be obtained without increasing the amount of air to be blown, so that the problem of increased internal heat generation, particularly in an advanced information-oriented building, can be dealt with without increasing equipment costs and power costs. There is.
【図１】本発明による空調システムの一実施例を示す構
成図である。FIG. 1 is a configuration diagram showing an embodiment of an air conditioning system according to the present invention.
１ 低温冷熱源 ３ 冷却循環ポンプ ４ 空調機 ５ 空調機コイル ６ 空調機ファン ７ ダクト ８ 吹出口 DESCRIPTION OF SYMBOLS 1 Low-temperature cold-heat source 3 Cooling circulation pump 4 Air conditioner 5 Air conditioner coil 6 Air conditioner fan 7 Duct 8 Air outlet
───────────────────────────────────────────────────── フロントページの続き (72)発明者 相楽 典泰 東京都調布市飛田給二丁目19番１号 鹿 島建設株式会社 技術研究所内 (72)発明者 三浦 克弘 東京都調布市飛田給二丁目19番１号 鹿 島建設株式会社 技術研究所内 (72)発明者 坪田 祐二 東京都調布市西つつじヶ丘二丁目４番１ 号 東京電力株式会社 技術研究所内 (72)発明者 高草 智 東京都調布市西つつじヶ丘二丁目４番１ 号 東京電力株式会社 技術研究所内 (56)参考文献 特開 平５−141721（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) F24F 5/00 102 K F25C 1/00 D──────────────────────────────────────────────────続 き Continuing from the front page (72) Noriyasu Soraku, Inventor No. 2-19-1, Tobita-Ki, Chofu-shi, Tokyo Kashima Construction Co., Ltd. (72) Katsuhiro Miura, 2-9-19-1 Tobita-Shibu, Chofu, Tokyo No. 1 Kashima Construction Co., Ltd. Technical Research Institute (72) Inventor Yuji Tsubota 2-4-1 Nishi-Atsujigaoka, Chofu City, Tokyo Tokyo Electric Power Company Technical Research Institute (72) Inventor Satoshi Takagusa Chofu City, Tokyo 2-4-1, Nishi-Atsujigaoka Tokyo Electric Power Company R & D Laboratory (56) References JP-A-5-141721 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) F24F 5/00 102 K F25C 1/00 D
Claims (1)
冷熱源と、該低温冷熱源から送られた低温冷水によって
空気を１２℃程度に冷却する空調機とからなり、 前記空調機においては、空気を冷却する際に除湿が同時
に行なわれるとともに、 冷却除湿された空気は建物の天井吹出口を介して室内に
直接吹き出されることを特徴とする空調システム。1. A low-temperature cold heat source for supplying low-temperature cold water at about 4 ° C., and an air conditioner for cooling air to about 12 ° C. with low-temperature cold water sent from the low-temperature cold heat source. An air conditioning system characterized in that dehumidification is performed simultaneously when cooling air, and the cooled and dehumidified air is directly blown into a room through a ceiling outlet of a building.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4356918A JP2856237B2 (en) | 1992-12-21 | 1992-12-21 | Air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4356918A JP2856237B2 (en) | 1992-12-21 | 1992-12-21 | Air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06193916A JPH06193916A (en) | 1994-07-15 |
| JP2856237B2 true JP2856237B2 (en) | 1999-02-10 |
Family
ID=18451426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4356918A Expired - Lifetime JP2856237B2 (en) | 1992-12-21 | 1992-12-21 | Air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2856237B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05141721A (en) * | 1991-11-21 | 1993-06-08 | Taikisha Ltd | Ice storage system air conditioner |
-
1992
- 1992-12-21 JP JP4356918A patent/JP2856237B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06193916A (en) | 1994-07-15 |
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