JPH01247966A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH01247966A JPH01247966A JP7401388A JP7401388A JPH01247966A JP H01247966 A JPH01247966 A JP H01247966A JP 7401388 A JP7401388 A JP 7401388A JP 7401388 A JP7401388 A JP 7401388A JP H01247966 A JPH01247966 A JP H01247966A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- air
- unit
- water
- room
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000003507 refrigerant Substances 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 238000010276 construction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
Landscapes
- Steam Or Hot-Water Central Heating Systems (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は複数の室を同時に冷暖房する空気調和装置に関
する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an air conditioner that simultaneously cools and heats a plurality of rooms.
（ロ）従来の技術
複数の室を同時に冷暖房する空気調和装置として、例え
ば特公昭５１−１１４２７号公報で示されるように各室
に設置される利用側熱交換器を室内空気と熱交換する空
気熱交換器とした直膨方式と、例えば実公昭５２−４７
８７７号公報で示されるように利用側熱交換器を水熱交
換器とし、この水熱交換器で冷却又は加熱された冷温水
を各室のファンコイルユニットに循環させて冷暖房する
チラ一方式とがある。(B) Conventional technology As an air conditioner that cools and heats multiple rooms simultaneously, for example, as shown in Japanese Patent Publication No. 11427/1982, the user side heat exchanger installed in each room exchanges heat with indoor air. A direct expansion method using a heat exchanger and, for example,
As shown in Publication No. 877, the user-side heat exchanger is a water heat exchanger, and cold and hot water cooled or heated by this water heat exchanger is circulated to fan coil units in each room to perform air conditioning and heating. There is.
（ハ）発明が解決しようとする課題
上述の直膨方式は冷媒流量の調整により冷暖房負荷に見
合ったきめの細かい冷暖房効果が得られる反面、利用側
空気熱交換器の数だけユニット間冷媒配管の数が必要で
あり配管接続作業が面倒である不具合きを有していた。(c) Problems to be Solved by the Invention While the above-mentioned direct expansion method can obtain a fine-grained heating and cooling effect commensurate with the cooling and heating load by adjusting the refrigerant flow rate, on the other hand, the number of refrigerant piping between units is limited by the number of air heat exchangers on the user side. However, the problem was that a large number of pipes were required and the piping connection work was troublesome.
一方、チラ一方式は室外ユニットから導出されるユニッ
ト間水配管にファンコイルユニットを並列接続するため
にユニット間水配管はファンコイルユニットの数に関係
なく一組の往復管のみで良いが、各ファンコイルユニッ
トは循環水との熱交換であるため直膨方式はどにきめの
細かい冷暖房効果が得られない不具合さを有していた。On the other hand, in the flicker one-way type, fan coil units are connected in parallel to the inter-unit water piping led out from the outdoor unit, so the inter-unit water piping only requires one set of reciprocating pipes regardless of the number of fan coil units. Since the fan coil unit exchanges heat with circulating water, the direct expansion method has the disadvantage that it cannot provide fine-grained heating and cooling effects.
本発明は上述の課題に鑑み、直膨方式とチラー方式の夫
々の利点を組み合わせた空気調和装置を提供するもので
ある。In view of the above problems, the present invention provides an air conditioner that combines the advantages of the direct expansion method and the chiller method.
（ニ）課題を解決するための手段
上記目的を達成するために、本発明は室外ユニットとユ
ニット間冷媒配管で接続される利用側熱交換器を、室内
空気と熱交換する空気熱交換器と、冷房及び／又は暖房
用の循環水と熱交換する水熱交換器とで構成するように
したものである。(d) Means for Solving the Problems In order to achieve the above objects, the present invention replaces the user-side heat exchanger connected to the outdoor unit with inter-unit refrigerant piping to an air heat exchanger that exchanges heat with indoor air. , a water heat exchanger that exchanges heat with circulating water for cooling and/or heating.
更には空気熱交換器と水熱交換器とを同一の室内ユニッ
トに内蔵したものである。Furthermore, an air heat exchanger and a water heat exchanger are built into the same indoor unit.
（＊）作用
冷房時は室内ユニット内の空気熱交換器及び水熱交換器
が夫々蒸発器として作用し、この室内ユニットが設置さ
れた室内は空気熱交換器により冷房きれると共に、他の
室内は水熱交換器で冷却きれた循環水がファンフィルユ
ニットを流れることにより冷房される。(*) During active cooling, the air heat exchanger and water heat exchanger in the indoor unit each act as an evaporator, and the room where this indoor unit is installed is cooled by the air heat exchanger, while other rooms are cooled. The air conditioner is cooled by circulating water that has been completely cooled by the water heat exchanger and flowing through the fan fill unit.
又、暖房時は室内ユニット内の空気熱交換器及び水熱交
換器が夫々凝縮器として作用し、この室内ユニットが設
置された室内は空気熱交換器により暖房されると共に、
他の室内は水熱交換器で加熱された循環水がファンコイ
ルユニットを流れることにより暖房される。Also, during heating, the air heat exchanger and water heat exchanger in the indoor unit each act as a condenser, and the room in which this indoor unit is installed is heated by the air heat exchanger, and
Other rooms are heated by circulating water heated by a water heat exchanger flowing through a fan coil unit.
（へ）実施例
本発明の実施例を図面に基づいて説明すると、（１）は
圧縮機（２）、四方弁（３〉、熱源側熱交換器（４）、
減圧器（５）を内蔵し、室外に設置される室外ユニット
、（６）は上半部に利用側の空気熱交換器（７）を、下
半部に利用側の水熱交換器（８）を内蔵し、電算機室等
の特定の室内に設置される室内ユニットで、これら機器
は一対のユニット間冷媒配管（９）（１０）を介して図
示の如く接続されている。(f) Example An example of the present invention will be explained based on the drawings. (1) consists of a compressor (2), a four-way valve (3), a heat source side heat exchanger (4),
The outdoor unit (6), which has a built-in pressure reducer (5) and is installed outdoors, has an air heat exchanger (7) on the user side in the upper half and a water heat exchanger (8) on the user side in the lower half. ) and is installed in a specific room such as a computer room, and these devices are connected as shown in the figure via a pair of inter-unit refrigerant pipes (9) and (10).
（１１）は熱源側熱交換器（４）と外気とを熱交換きせ
るための室外ファン、（１２）は利用側の空気熱交換器
（７〉と室内空気とを熱交換させるための室内ファン、
（１３）はドレンパンである。(11) is an outdoor fan for exchanging heat between the heat source side heat exchanger (4) and outside air, and (12) is an indoor fan for exchanging heat between the user side air heat exchanger (7) and indoor air. ,
(13) is a drain pan.
（１４ａ）（１４ｂ）は室内ブアン（１５）と通水用熱
交換器（１６）とを内蔵し、事務所等の不特定の室内に
設置される複数台のファンコイルユニットで、各通水用
熱交換器（１６）は利用側の水熱交換器（８）と接続さ
れた水配管（１７）に分岐接続されている。 （１８）
は循環ポンプである。(14a) and (14b) are multiple fan coil units that incorporate an indoor fan (15) and a water flow heat exchanger (16), and are installed in an unspecified room such as an office. The heat exchanger (16) is branch-connected to a water pipe (17) connected to the water heat exchanger (8) on the user side. (18)
is a circulation pump.
本発明装置は以上の如く構成されており、冷房時は四方
弁（３）を実線状態に設定することにより、圧縮機（２
）から吐出された冷媒は四方弁（３）−熱源側熱交換器
（４）−減圧器（５）−ユニット間冷媒配管（９）を順
次径た後、空気熱交換器（７）と水熱交換器（８）とに
分配きれ、然る後、再び合流してユニット間冷媒配管（
１０）−四方弁（３）を経て圧縮機（２）に帰還される
。かかる冷房サイクルの繰り返しにより、蒸発器として
作用する空気熱交換器（７）と、運転される室内ファン
（１２）とにより室内ユニット（６）が設置された室内
が冷房される。同時に水熱交換器（８）で冷却された循
環水が循環ポンプ（１８）の運転により各ファンコイル
ユニット（１４ａ）（１４ｂ）の通水用熱交換器（１６
）へ流れると共に、室内ファン（１５）が運転されて各
室内が冷房される。The device of the present invention is constructed as described above, and by setting the four-way valve (3) to the solid line state during cooling, the compressor (2
) The refrigerant discharged from the four-way valve (3) - the heat source side heat exchanger (4) - the pressure reducer (5) - the inter-unit refrigerant pipe (9) is passed through the air heat exchanger (7) and the water The refrigerant is distributed to the heat exchanger (8), and then joins again to the inter-unit refrigerant piping (
10) - Returned to the compressor (2) via the four-way valve (3). By repeating this cooling cycle, the room in which the indoor unit (6) is installed is cooled by the air heat exchanger (7) functioning as an evaporator and the indoor fan (12) being operated. At the same time, circulating water cooled by the water heat exchanger (8) is circulated through the water heat exchanger (16) of each fan coil unit (14a) (14b) by operation of the circulation pump (18).
), and the indoor fan (15) is operated to cool each room.
又、暖房時は四方弁（３）を破線状態に設定することに
より、圧縮機（２）から吐出された冷媒は四方弁（３）
−ユニット間冷媒配管（１０）を経た後、空気熱交換器
（７）と水熱交換器（８）とに分配され、然る後、再び
合流してユニット間冷媒配管（９）−減圧器（５）−熱
源側熱交換器（４〉−四方弁（３）を経て圧縮機（２）
に帰還される。かかる暖房サイクルの繰り返しにより、
凝縮器として作用する空気熱交換器（７）と、運転され
る室内ファン（１２）とにより室内ユニット（６〉が設
置された室内が暖房される。同時に水熱交換器（８）で
加熱された循環水が循環ポンプ（１８）の運転により各
ファンコイルユニット（１４ａ）（１４ｂ）の通水用熱
交換器（１６）へ流れると共に、室内ファン（１５）が
運転されて各室内が暖房きれる。Also, during heating, by setting the four-way valve (3) to the broken line state, the refrigerant discharged from the compressor (2) will flow through the four-way valve (3).
- After passing through the inter-unit refrigerant piping (10), it is distributed to the air heat exchanger (7) and the water heat exchanger (8), and then joins again to join the inter-unit refrigerant piping (9) - the pressure reducer (5) - Heat source side heat exchanger (4> - Compressor (2) via four-way valve (3)
will be returned to. By repeating this heating cycle,
The room in which the indoor unit (6) is installed is heated by the air heat exchanger (7) that acts as a condenser and the operated indoor fan (12).At the same time, the room where the indoor unit (6) is installed is heated. The circulating water flows to the water flow heat exchanger (16) of each fan coil unit (14a) (14b) by operation of the circulation pump (18), and the indoor fan (15) is operated to completely heat each room. .
尚、上記実施例で説明したように空気熱交換器（７）と
水熱交換器（８）とを同一の室内ユニット（６）に内蔵
すると室内の設置面積が小さくて済むと共に室内ユニッ
ト（６）内で空気熱交換器（７）と水熱交換器（８）と
を分岐接続できるためユニット間冷媒配管（９）（１０
）を２本に抑えることができるが、必らずしも画然交換
器（７）（８）を同一の室内ユニット（６）に内蔵しな
くても良い。As explained in the above embodiment, if the air heat exchanger (7) and the water heat exchanger (8) are built into the same indoor unit (6), the indoor installation area can be reduced, and the indoor unit (6) ), the air heat exchanger (7) and water heat exchanger (8) can be branched and connected, so inter-unit refrigerant piping (9) (10
) can be kept to two, but it is not necessarily necessary to incorporate the two-way exchangers (7) and (8) in the same indoor unit (6).
又、室内ユニット（６）にダクトを接続して室内（ト）
発明の効果
本発明によれば、室外ユニットとユニット間冷媒配管で
接続される利用側熱交換器を、室内空気と熱交換する空
気熱交換器と、冷房及び／又は暖房用の循環水と熱交換
する水熱交換器とで構成したので、電算機室等の特定の
室内は冷暖房負荷に見合ったきめの細かい冷暖房が空気
熱交換器の蒸発、凝縮作用により行なえると共に、それ
ほどきめの細かい冷暖房を必要としない事務所等の不特
定の室内は水熱交換器で冷却又は加熱された循環水で冷
暖房することができ、直膨方式とチラ一方式の利点を充
分活用することができる。Also, connect the duct to the indoor unit (6) to
Effects of the Invention According to the present invention, a user-side heat exchanger connected to an outdoor unit by an inter-unit refrigerant pipe is connected to an air heat exchanger that exchanges heat with indoor air, and circulating water and heat for cooling and/or heating. Since it is configured with a water heat exchanger that exchanges air heat, it is possible to perform fine-grained heating and cooling in a specific room such as a computer room using the evaporation and condensation effects of the air heat exchanger to match the heating and cooling load. Unspecified rooms such as offices that do not require air conditioning can be heated and cooled using circulating water cooled or heated by a water heat exchanger, making full use of the advantages of the direct expansion system and the chiller system.
しかも、空気熱交換器と水熱交換器とを同一の室内ユニ
ットに内蔵すれば設置面積を小さくできると共に、ユニ
ット間冷媒配管を２本に抑えることができる。Furthermore, by incorporating the air heat exchanger and the water heat exchanger in the same indoor unit, the installation area can be reduced and the number of inter-unit refrigerant pipes can be reduced to two.
図面は本発明の実施例を示す空気調和装置の配管系統図
である。
（１）・・・室外ユニット、 （２）・・・圧縮機、
（４）・・・熱源側熱交換器、 （６）・・・室内ユニ
ット、 （７）・・・利用側空気熱交換器、 （８）・
・・利用側水熱交換器、 （９）（１ｏ）・・・ユニッ
ト間冷媒配管。The drawing is a piping system diagram of an air conditioner showing an embodiment of the present invention. (1)...Outdoor unit, (2)...Compressor,
(4)... Heat source side heat exchanger, (6)... Indoor unit, (7)... User side air heat exchanger, (8)...
... User-side water heat exchanger, (9) (1o) ... Inter-unit refrigerant piping.
Claims (1)
と利用側熱交換器を内蔵した室内ユニットとをユニット
間冷媒配管で接続した空気調和装置において、前記利用
側熱交換器を室内空気と熱交換する空気熱交換器と、冷
房及び／又は暖房用の循環水と熱交換する水熱交換器と
で構成したことを特徴とする空気調和装置。 ２、空気熱交換器と水熱交換器とを同一の室内ユニット
に内蔵した請求項１記載の空気調和装置。[Claims] 1. In an air conditioner in which an outdoor unit incorporating a compressor and a heat source side heat exchanger and an indoor unit incorporating a user side heat exchanger are connected by inter-unit refrigerant piping, the user side An air conditioner comprising an air heat exchanger that exchanges heat with indoor air and a water heat exchanger that exchanges heat with circulating water for cooling and/or heating. 2. The air conditioner according to claim 1, wherein the air heat exchanger and the water heat exchanger are built into the same indoor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63074013A JP2622984B2 (en) | 1988-03-28 | 1988-03-28 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63074013A JP2622984B2 (en) | 1988-03-28 | 1988-03-28 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01247966A true JPH01247966A (en) | 1989-10-03 |
| JP2622984B2 JP2622984B2 (en) | 1997-06-25 |
Family
ID=13534788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63074013A Expired - Lifetime JP2622984B2 (en) | 1988-03-28 | 1988-03-28 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2622984B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998055809A1 (en) * | 1997-06-03 | 1998-12-10 | Daikin Industries, Ltd. | Refrigerating plant |
| EP2278237A1 (en) * | 2008-04-30 | 2011-01-26 | Mitsubishi Electric Corporation | Air-conditioning apparatus |
| WO2011064827A1 (en) * | 2009-11-30 | 2011-06-03 | 三菱電機株式会社 | Air-conditioning device |
| WO2011064830A1 (en) * | 2009-11-30 | 2011-06-03 | 三菱電機株式会社 | Air-conditioning device |
| JP2014228194A (en) * | 2013-05-22 | 2014-12-08 | 株式会社Ｎｔｔファシリティーズ | Apparatus cooling system |
| JPWO2017006775A1 (en) * | 2015-07-08 | 2017-11-30 | 株式会社デンソー | Refrigeration system and in-vehicle refrigeration system |
| JP2019174105A (en) * | 2015-10-28 | 2019-10-10 | 株式会社神戸製鋼所 | heat pump |
| US11079143B2 (en) | 2015-10-28 | 2021-08-03 | Kobe Steel, Ltd. | Heat pump |
| WO2023223373A1 (en) * | 2022-05-16 | 2023-11-23 | 三菱電機株式会社 | Heat pump device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6166748U (en) * | 1984-10-09 | 1986-05-08 |
-
1988
- 1988-03-28 JP JP63074013A patent/JP2622984B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6166748U (en) * | 1984-10-09 | 1986-05-08 |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998055809A1 (en) * | 1997-06-03 | 1998-12-10 | Daikin Industries, Ltd. | Refrigerating plant |
| AU730288B2 (en) * | 1997-06-03 | 2001-03-01 | Daikin Industries, Ltd. | Refrigeration system |
| US6212898B1 (en) | 1997-06-03 | 2001-04-10 | Daikin Industries, Ltd. | Refrigeration system |
| EP2278237A1 (en) * | 2008-04-30 | 2011-01-26 | Mitsubishi Electric Corporation | Air-conditioning apparatus |
| EP2278237A4 (en) * | 2008-04-30 | 2015-03-11 | Mitsubishi Electric Corp | Air-conditioning apparatus |
| US8733120B2 (en) | 2009-11-30 | 2014-05-27 | Mitsubishi Electric Corporation | Air-conditioning apparatus |
| JPWO2011064827A1 (en) * | 2009-11-30 | 2013-04-11 | 三菱電機株式会社 | Air conditioner |
| JP5436575B2 (en) * | 2009-11-30 | 2014-03-05 | 三菱電機株式会社 | Air conditioner |
| WO2011064830A1 (en) * | 2009-11-30 | 2011-06-03 | 三菱電機株式会社 | Air-conditioning device |
| WO2011064827A1 (en) * | 2009-11-30 | 2011-06-03 | 三菱電機株式会社 | Air-conditioning device |
| EP2508819A4 (en) * | 2009-11-30 | 2018-10-17 | Mitsubishi Electric Corporation | Air-conditioning device |
| JP2014228194A (en) * | 2013-05-22 | 2014-12-08 | 株式会社Ｎｔｔファシリティーズ | Apparatus cooling system |
| JPWO2017006775A1 (en) * | 2015-07-08 | 2017-11-30 | 株式会社デンソー | Refrigeration system and in-vehicle refrigeration system |
| US10414244B2 (en) | 2015-07-08 | 2019-09-17 | Denso Corporation | Refrigeration system, and in-vehicle refrigeration system |
| JP2019174105A (en) * | 2015-10-28 | 2019-10-10 | 株式会社神戸製鋼所 | heat pump |
| US11079143B2 (en) | 2015-10-28 | 2021-08-03 | Kobe Steel, Ltd. | Heat pump |
| WO2023223373A1 (en) * | 2022-05-16 | 2023-11-23 | 三菱電機株式会社 | Heat pump device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2622984B2 (en) | 1997-06-25 |
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