JP2015059692A - Air conditioning system - Google Patents

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JP2015059692A
JP2015059692A JP2013193388A JP2013193388A JP2015059692A JP 2015059692 A JP2015059692 A JP 2015059692A JP 2013193388 A JP2013193388 A JP 2013193388A JP 2013193388 A JP2013193388 A JP 2013193388A JP 2015059692 A JP2015059692 A JP 2015059692A
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air
coil
passage
cold water
air passage
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JP2015059692A5 (en
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洋介 水谷
Yosuke Mizutani
洋介 水谷
和成 上田
Kazunari Ueda
和成 上田
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Shinko Electric Industries Co Ltd
Sinko Industries Ltd
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Shinko Electric Industries Co Ltd
Sinko Industries Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide an air conditioning system in which control of temperature and humidity is easy with a simple configuration.SOLUTION: In an air conditioning system: a first air passage and a second air passage for taking in outside air or return air and supplying air are provided; a first coil is arranged in the first air passage and a second coil is arranged in the second air passage respectively; low temperature cold water is supplied in the first coil so that the water amount can be controlled by a control device, and air in the first air passage is cooled; medium temperature cold water discharged from the first coil is supplied to the second coil to cool the air and drain the water; in the medium temperature cold water supplied to the second coil, the low temperature cold water is mixed so that the water amount can be controlled by the control device, and the air in the second air passage is cooled; and further more, the cooled air in the first air passage and the second air passage is mixed and supplied.

Description

本発明は、空気を調和する空調システムに関し、特に、主に温度や湿度の制御が容易な空調システムに関する。   The present invention relates to an air conditioning system that harmonizes air, and in particular, relates to an air conditioning system that mainly allows easy control of temperature and humidity.

従来の単１コイルによる減湿冷却の空調システムでは、湿分を満足させる場合は冷えすぎ、顕熱のみ満足させた場合は、湿分処理が行えず不快であるのが普通であり、これを図１の空気線図で説明すると、設計絶対湿度（一点鎖線）まで湿分を除去しようとすると空調機の吹出し空気ＳＡを１４℃程度まで冷やさなければならない。このため１６℃程度の吹出空冷温度に調整しようとすると、再熱しなければならす、省エネにはならない。
また、単１コイルの空調システムで省エネで湿度と温度を調整しようとすると、例えば、特許文献１に示すように、複雑なシステムを必要する問題点があった。 In the conventional air conditioning system with dehumidification cooling by a single coil, when the moisture is satisfied, it is too cold, and when only the sensible heat is satisfied, the moisture treatment cannot be performed and it is usually uncomfortable. Referring to the air diagram of FIG. 1, if the moisture is to be removed up to the designed absolute humidity (one-dot chain line), the blown air SA of the air conditioner must be cooled to about 14 ° C. For this reason, if it is going to adjust to the blowing air cooling temperature of about 16 degreeC, it must reheat and it does not save energy.
Moreover, when trying to adjust humidity and temperature with an energy saving system with a single coil air conditioning system, for example, as shown in Patent Document 1, there is a problem that a complicated system is required.

特開２０１３−１３９９２２号公報JP 2013-139922 A

本願発明は、上記の問題点に鑑みてなされたもので、簡単な構成で温度や湿度の制御が容易な空調システムを提供することにある。   The present invention has been made in view of the above problems, and it is an object of the present invention to provide an air conditioning system that can easily control temperature and humidity with a simple configuration.

上記課題を解決するために、請求項１の発明は、外気又は還気を取込で給気する第１空気通路と第２空気通路とを設け、第１空気通路に第１コイルを第２空気通路に第２コイルをそれぞれ配置し、該第１コイルには制御装置によって低温冷水の水量を制御可能に供給して第１空気通路の空気を冷房し、該第１コイルから排出された中温冷水を第２コイルに供給して空気を冷房して排水するとともに、第２コイルに供給する前記中温冷水には制御装置によって前記低温冷水の水量を制御可能に混合して第２空気通路の空気を冷房し、更に、冷房された第１空気通路と第２空調通路との空気を混合して給気したことを特徴とする空調システムである。   In order to solve the above problems, the invention of claim 1 is provided with a first air passage and a second air passage for taking in outside air or return air and supplying the first air passage, and a second coil is provided in the first air passage. A second coil is disposed in each of the air passages, and the control unit supplies a controllable amount of low-temperature cold water to the first coil to cool the air in the first air passage, and the medium temperature discharged from the first coil. The cold air is supplied to the second coil to cool and drain the air, and the medium temperature cold water supplied to the second coil is mixed with the control device so that the amount of the low-temperature cold water can be controlled by the control device. The air conditioning system is characterized in that the air in the cooled first air passage and the second air conditioning passage is mixed and supplied.

請求項２の発明は、請求項１に記載の空調システムにおいて、前記第２空気通路の導入される外気又は還気の１部をバイパス通路及び調整装置によって調整可能に前記第１空気通路の導入される外気又は還気に混合することを特徴とする。
請求項３の発明は、請求項１又は請求項２に記載の空調システムにおいて、少なくとも、前記第１コイルの制御装置又は第２コイルの制御装置は、二方弁であることを特徴とする。
請求項４の発明は、請求項１に記載の空調システムにおいて、前記第１コイルの制御装置と第２コイルの制御装置と１つの三方弁としたことを特徴とする。 According to a second aspect of the present invention, in the air conditioning system according to the first aspect, the introduction of the first air passage is such that a part of the outside air or the return air introduced into the second air passage can be adjusted by a bypass passage and an adjustment device. It mixes with the outside air or return air which is made.
According to a third aspect of the present invention, in the air conditioning system according to the first or second aspect, at least the control device for the first coil or the control device for the second coil is a two-way valve.
According to a fourth aspect of the present invention, in the air conditioning system according to the first aspect, the control device for the first coil, the control device for the second coil, and one three-way valve are used.

本発明の空調システムによれば、低温冷水によって第１コイルと第２コイル(本空調システム)で冷房し、この多少暖まった中温冷水によって、第２コイルで再利用するので、第１コイルでは定格負荷時はもとより低負荷時においても熱媒である水の出入口温度差（温度差10℃程度）を確保でき、冷房のエネルギー効率が向上する。
また、第１コイルが低温冷水によって冷房するので、第１コイルでは主に結露等で除湿して潜熱処理が行え、第２コイルでは中温冷水での冷房であるので顕熱処理が行え、潜熱と顕熱を分離して熱処理が行えるので、第１コイルで冷房とともに湿度制御が容易に行え、第２コイルで温度制御を行うことで、全体として湿度と温度の調整が再熱を行うことなく行え、省エネの空調が可能となる。
さらに、第２コイルは、再利用した中高温の熱媒で空気を冷やすので凝縮水の発生がなくコイルの通過風速を3〜10m/sと高速にすることが出来る（通常は3m/s程度まで）。
また、第２空気通路の導入される外気又は還気の１部をバイパス通路及び調整装置によって調整可能に前記第１空気通路の導入される外気又は還気に混合すれば、制御範囲は広がるとともに、より省エネ運転が可能になる。 According to the air conditioning system of the present invention, the first coil and the second coil (the present air conditioning system) are cooled by low-temperature cold water, and the second coil is reused by the slightly warmed medium-temperature cold water. The temperature difference between the inlet and outlet of water, which is a heating medium (temperature difference of about 10 ° C), can be secured not only when the load is low but also when the load is low, improving the energy efficiency of cooling.
In addition, since the first coil is cooled by low-temperature cold water, the first coil can be subjected to latent heat treatment by dehumidification mainly due to condensation, and the second coil can be subjected to sensible heat treatment because it is cooled by medium-temperature cold water. Since heat can be separated and heat treated, humidity control can be easily performed together with cooling with the first coil, and temperature control with the second coil allows adjustment of humidity and temperature as a whole without reheating, Energy-saving air conditioning is possible.
In addition, the second coil cools the air with a reused medium and high temperature heat medium, so there is no generation of condensed water, and the passing wind speed of the coil can be increased to 3-10 m / s (usually about 3 m / s). Until).
If a part of the outside air or return air introduced into the second air passage is mixed with the outside air or return air introduced into the first air passage so as to be adjustable by the bypass passage and the adjusting device, the control range is expanded. More energy-saving operation is possible.

従来の水コイル使用の空気の状態変化を説明する空気線図、Air line diagram explaining air state change using conventional water coil, 実施例１の空調システムのブロック図、図２(ａ)は外気ＯＡと還気ＲＡを別々に入力したブロック図、図２(ｂ)は図２(ａ)の空気入力部分を還気ＲＡをバイパス通路から外気ＯＡに混合するブロック図、2 is a block diagram of the air conditioning system of the first embodiment, FIG. 2 (a) is a block diagram in which the outside air OA and the return air RA are separately input, and FIG. 2 (b) is the air input portion of FIG. Block diagram of mixing from the bypass passage to the outside air OA, 実施例１の空気の状態変化を説明する空気線図、Air line diagram illustrating air state change of Example 1, 図２の空気システムのブロック図の装置の構成略図、FIG. 2 is a schematic diagram of the apparatus configuration of the air system block diagram of FIG. 実施例２の空調システムのブロック図、図５(ａ)は外気ＯＡと還気ＲＡを別々に入力したブロック図、図５(ｂ)は図５(ａ)の空気入力部分を還気ＲＡをバイパス通路から外気ＯＡに混合するブロック図である。5 is a block diagram of the air conditioning system of the second embodiment, FIG. 5 (a) is a block diagram in which the outside air OA and the return air RA are separately input, and FIG. 5 (b) is the air input portion of FIG. It is a block diagram mixed with outside air OA from a bypass passage.

本発明の空調システムを図面に沿って説明する。
［実施例１］
先ず、本発明の実施例１の空調システムをブロック図で説明すると、図２(ａ)は、外気ＯＡと還気ＲＡを別々に処理するシステムで、外気(ＯＡ)１１を第１空気通路２１から第１コイル３１に導入し、還気ＲＡ１２を第２空気通路２２から第２コイル３２に導入し、それぞれコイルを通過した空気をファン４で混合して給気ＳＡする。
このように、第１空気通路２１に第１コイル３１を第２空気通路２２に第２コイル３２をそれぞれ配置するが、低温冷水を第１コイル３１へ水量を制御装置である第１二方弁６１で制御して供給し外気ＯＡ１１を処理し、この第１コイル３１から排出された冷水が多少温められた中温冷水を第２コイル３２に供給するが、この際、第２コイル３２に供給される中温冷水には、低温冷水を制御装置である第２二方弁６２を介して直接供給して混合し、混合された中温冷水によって、第２コイル３２によって還気ＲＡ１２を処理して出口から排水する。 The air conditioning system of this invention is demonstrated along drawing.
[Example 1]
First, the air conditioning system according to the first embodiment of the present invention will be described with reference to a block diagram. FIG. 2A is a system for separately processing the outside air OA and the return air RA, and the outside air (OA) 11 is treated as the first air passage 21. Then, the return air RA12 is introduced from the second air passage 22 into the second coil 32, and the air that has passed through the coils is mixed by the fan 4 to supply air SA.
As described above, the first coil 31 is arranged in the first air passage 21 and the second coil 32 is arranged in the second air passage 22, respectively. The first two-way valve is a control device for controlling the amount of low-temperature cold water to the first coil 31. The outside air OA11 is processed by being controlled by 61, and the medium temperature cold water in which the cold water discharged from the first coil 31 is warmed to some extent is supplied to the second coil 32. At this time, the second temperature is supplied to the second coil 32. The medium temperature cold water is directly supplied and mixed with the low temperature cold water via the second two-way valve 62 which is a control device, and the return air RA12 is processed by the second coil 32 with the mixed medium temperature cold water and is discharged from the outlet. Drain.

ここで、外気ＯＡ１１を低温冷水によって第１コイル３１で冷房し、この多少暖まった中温冷水によって第２コイル３２で再利用するので、第１コイル３１では定格負荷時はもとより低負荷時においても熱媒である水の出入口温度差（温度差10℃程度）を確保でき、冷房効率が向上する。
同時に、第１コイル３１が低温冷水によって冷房するので、第１コイル３１では主に結露等で除湿して潜熱交換が行え、第２コイル３２では中温冷水での冷房であるので顕熱交換が行え、潜熱と顕熱を分離して熱処理が行えるので、第１コイル３１で冷房とともに湿度制御が容易に行え、第２コイル３２で温度制御を行うことで、全体として湿度と温度の調整が再熱を行うことなく行え、省エネの空調が可能となる。 Here, since the outside air OA11 is cooled by the first coil 31 with low-temperature cold water and reused by the second coil 32 with this somewhat warm medium-temperature cold water, the first coil 31 is heated not only at the rated load but also at the low load. The temperature difference between the water inlet and outlet (temperature difference of about 10 ° C) can be secured and the cooling efficiency is improved.
At the same time, since the first coil 31 is cooled by low-temperature cold water, the first coil 31 can be dehumidified mainly by condensation to exchange latent heat, and the second coil 32 can be sensible heat exchange because it is cooled by medium-temperature cold water. Since the latent heat and the sensible heat can be separated and heat treatment can be performed, the humidity control can be easily performed together with the cooling by the first coil 31, and the temperature and the temperature can be controlled by the second coil 32, so that the humidity and temperature can be reheated as a whole. This makes it possible to perform energy-saving air conditioning.

これを、図３の空気線図で説明すると、設計絶対湿度（一点鎖線）まで湿分を除去しようとすると外気ＯＡ１１を第１コイル３１で外気ＯＡを冷やし、第２コイル３２で室内空気ＲＡ１２を冷や（湿分除去は無い）し。その後、第１コイル３１と第２コイル３２をファン４の直前に混合するので、空調機の供給空気ＳＡは16℃程度となり、再熱の必要は少なくなる。   This will be explained with reference to the air diagram of FIG. 3. When the moisture is to be removed up to the designed absolute humidity (one-dot chain line), the outside air OA 11 is cooled by the first coil 31 and the room air RA 12 is cooled by the second coil 32. Cool (no moisture removal). Then, since the 1st coil 31 and the 2nd coil 32 are mixed just before the fan 4, the supply air SA of an air conditioner will be about 16 degreeC, and the necessity for reheating reduces.

次に、これを定格負荷時と低負荷時での第１コイル３１の入口ｘ１、出口ｘ２と、第２コイルの入口ｘ３、出口ｘ４での水温温度ので第１二方弁(ＭＶ１)６１、第２二方弁(ＭＶ２)６２の開度との関係を表１に例示する。
[表１]

Figure 2015059692
Next, the first two-way valve (MV1) 61 at the rated load and the low load at the inlet temperature x1 and outlet x2 of the first coil 31 and the water temperature at the inlet x3 and outlet x4 of the second coil, Table 1 shows the relationship with the opening degree of the second two-way valve (MV2) 62.
[Table 1]
Figure 2015059692

図２(ｂ)は、図２(ａ)の空気入力部分を還気ＲＡ１２をバイパス通路２３から外気ＯＡ１１に混合するブロック図であるが、第２空気通路２２の導入されるは還気ＲＡ１２(又は外気ＯＡ１１)の１部をバイパス通路２３と調整装置である混合調整ダンパ(ＶＤ２)１３１によって、調整可能に第１空気通路２の導入される外気ＯＡ１１（還気ＲＡ１２）に混合すれば、制御範囲は広がるとともに、より省エネ運転が可能になる   FIG. 2B is a block diagram of mixing the air input portion of FIG. 2A with the return air RA12 from the bypass passage 23 to the outside air OA11. The second air passage 22 is introduced with the return air RA12 ( Alternatively, if a part of the outside air OA11) is mixed with the outside air OA11 (return air RA12) introduced into the first air passage 2 by the bypass passage 23 and the mixing adjustment damper (VD2) 131 which is an adjustment device, the control is performed. As the range expands, more energy-saving operation becomes possible

次に、図２の実施例１の空気システムのブロック図の装置の構成略図を図４で説明する。
図４において、空調機枠体７には、外気ＯＡ１１の流入調整する外気調整ダンパ(ＭＤ１)１１１を介した第１空気通路２１と、還気ＲＡ１２の流入調整する還気調整ダンパ(ＶＤ１)１２１を介した第２空気通路２２とが接続され、流入直前に両空気通路をつなぐバイパス通路２３が設けられ、必要に応じて、この混合調整ダンパ(ＶＤ２)１３１でバイパス風量の混合量を制御し、外気ＯＡ１１へ還気ＲＡ１２の一部を混合させている。
なお、図４では、外気調整ダンパ(ＭＤ１)１１１、還気調整ダンパ(ＶＤ１)１２１、混合調整ダンパ(ＶＤ２)１３１を空調機枠体７外に配置しているが、これらの外気調整ダンパ(ＭＤ１)１１１、還気調整ダンパ(ＶＤ１)１２１、混合調整ダンパ(ＶＤ２)１３１を空調機枠体７'内に配置してもよい。 Next, a schematic configuration diagram of the apparatus of the block diagram of the air system of the first embodiment shown in FIG.
In FIG. 4, the air conditioner frame 7 includes a first air passage 21 through an outside air adjustment damper (MD1) 111 that adjusts the inflow of outside air OA11, and a return air adjustment damper (VD1) 121 that adjusts the inflow of return air RA12. And a bypass passage 23 that connects the two air passages immediately before the inflow is provided, and the mixing adjustment damper (VD2) 131 controls the amount of bypass air flow as necessary. A part of the return air RA12 is mixed with the outside air OA11.
In FIG. 4, the outside air adjustment damper (MD1) 111, the return air adjustment damper (VD1) 121, and the mixing adjustment damper (VD2) 131 are disposed outside the air conditioner frame 7, but these outside air adjustment dampers ( MD1) 111, return air adjustment damper (VD1) 121, and mixture adjustment damper (VD2) 131 may be arranged in the air conditioner frame 7 ′.

空調機枠体７内は、第１空気通路２１が第２空気通路２２に連なるように隔壁７１が設けられ、隔壁７１は下流のファン４が設けられた給気ファン室４２まで設けられ、ファン４の下流には給気口７２が設けられている。もっとも、上冷房される空気は第１コイル３１と第２コイル３２の下流では混合されるので、上記隔壁７１は図４のように給気ファン４まで長く延びなくても、第１コイル３１と第２コイル３２の直後まででもよい。
ここで、空調機枠体７内の第１空気通路２１に連なる第１チャンバー７３には、上流側から第１フィルター７３１、熱交換器である第１コイル３１、加湿器８が配置され、第１コイル３１には第１二方弁(ＭＶ１)６１を介して低温冷水の入口配管３１１が接続され、加湿器８には加湿電磁弁８２を介して配管８１が接続されている。なお、外気通路側の第１フィルター７３１には差圧計(ＰＳ）７３２が設けられ目づまり状態を監視している。
空調機枠体７内の第２空気通路２２に連なる第２チャンバー７４には、上流側からフィルター７４１、熱交換器である第２コイル３２が配置され、第２コイル３２には第１コイル３１からの出口配管３１２が接続されるとともに、低温冷水からの中間配管３１３が第２二方弁(ＭＶ２)６２を介して接続されている。第２コイル３２で熱交換が終了した水は排出配管３１４から排出される。 In the air conditioner frame 7, a partition wall 71 is provided so that the first air passage 21 is connected to the second air passage 22, and the partition wall 71 is provided up to the supply air fan chamber 42 in which the downstream fan 4 is provided. An air supply port 72 is provided downstream of 4. However, since the air to be cooled is mixed downstream of the first coil 31 and the second coil 32, the partition wall 71 does not extend to the air supply fan 4 as shown in FIG. It may be up to immediately after the second coil 32.
Here, the first filter 731, the first coil 31, which is a heat exchanger, and the humidifier 8 are arranged in the first chamber 73 connected to the first air passage 21 in the air conditioner frame 7 from the upstream side. An inlet pipe 311 for low-temperature cold water is connected to the one coil 31 via a first two-way valve (MV1) 61, and a pipe 81 is connected to the humidifier 8 via a humidifying electromagnetic valve 82. The first filter 731 on the outside air passage side is provided with a differential pressure gauge (PS) 732 to monitor the clogged state.
In the second chamber 74 connected to the second air passage 22 in the air conditioner frame 7, a filter 741 and a second coil 32 that is a heat exchanger are arranged from the upstream side, and the second coil 32 has a first coil 31. And an intermediate pipe 313 from low-temperature cold water is connected via a second two-way valve (MV2) 62. The water whose heat exchange has been completed in the second coil 32 is discharged from the discharge pipe 314.

これら外気ダンパ１１１、第１二方弁(ＭＶ１)６１、第２二方弁(ＭＶ２)６２、ファン４等は空調制御装置９によって制御されるが、空調制御装置９には第２チャンバー７４の還気ＲＡ２２の流入口７４２の近傍に温湿度検出器９１及びファ４の給気口４３の近傍に設けられ温湿度検出器９２が配置され、これらの検出値によって適切な温度と湿度の空気調整された空気が供給される。
以上、夏場の冷房時を説明したが、冬場の暖房時には、第１コイル３１と第２コイル３２とに高温暖水を入口配管３１１及び中間配管３１２に導入し、冬場は湿度が足りなくなる場合も生じるので、冷房時とは逆に加湿器８の加湿電磁弁８２で制御しながら、第２チャンバー７４側で加湿した適度の温度及び湿度に調整する。 The outside air damper 111, the first two-way valve (MV1) 61, the second two-way valve (MV2) 62, the fan 4 and the like are controlled by the air conditioning control device 9, but the air conditioning control device 9 includes the second chamber 74. A temperature / humidity detector 91 and a temperature / humidity detector 92 are provided in the vicinity of the inlet 742 of the return air RA22 and in the vicinity of the air supply port 43 of the fa 4. Supplied air is supplied.
As described above, the cooling in summer has been described. However, during heating in winter, high warm water is introduced into the inlet pipe 311 and the intermediate pipe 312 in the first coil 31 and the second coil 32, and the humidity may be insufficient in the winter. As a result, the temperature and humidity are adjusted to be moderately humidified on the second chamber 74 side while being controlled by the humidifying electromagnetic valve 82 of the humidifier 8 contrary to the cooling.

以上の構成であるので、前述したように、低温冷水を入口配管３１１から第１コイル３１へ第１二方弁６１で制御して供給して導入される外気ＯＡ１１を処理し、この第１コイル３１で多少温められた中温冷水を中間配管３１２を介して第２コイル３２に供給する。また、第２コイル３２に供給される中温冷水に、低温冷水を中間配管３１３と第２二方弁６２とのによって直接供給して混合するラインも設けられ、第２二方弁６２が閉の時は、単純に第１コイル３１と第２コイル３２が直列に繋がれるが、第２二方弁６２の開度と第１二方弁６１の開度を調整すれば、例えば、[表１]に示されるように、各コイルでの冷房度合いを調整できる。
したがって、第１コイル３１では主に結露等で除湿して潜熱交換が行え、第２コイル３２では中温冷水での冷房であるので顕熱処理が行え、潜熱と顕熱を分離して熱処理が行えるので、第１コイル３１で冷房とともに湿度制御が容易に行え、第２コイル３２で温度制御を行うことで、全体として湿度と温度の調整が再熱を行うことなく行え、省エネの空調が可能となる。 As described above, as described above, the low temperature cold water is supplied from the inlet pipe 311 to the first coil 31 by being controlled and supplied by the first two-way valve 61 to process the outside air OA11, and this first coil is processed. The medium-temperature cold water that has been slightly warmed at 31 is supplied to the second coil 32 via the intermediate pipe 312. In addition, a line for directly supplying low-temperature cold water to the intermediate-temperature cold water supplied to the second coil 32 through the intermediate pipe 313 and the second two-way valve 62 is also provided, and the second two-way valve 62 is closed. When the first coil 31 and the second coil 32 are simply connected in series, if the opening degree of the second two-way valve 62 and the opening degree of the first two-way valve 61 are adjusted, for example, [Table 1 As shown in the above, the degree of cooling in each coil can be adjusted.
Therefore, the first coil 31 can be dehumidified mainly by dew condensation to exchange latent heat, and the second coil 32 can be sensible heat-treated because it is cooled with medium-temperature cold water, and the latent heat and sensible heat can be separated and heat-treated. The first coil 31 can easily control the humidity as well as the cooling, and the second coil 32 can control the temperature without adjusting the humidity and temperature as a whole, thereby enabling energy-saving air conditioning. .

[実施例２]
ここで、実施例１では２つのコイルへの冷水の供給に、２つの第１二方弁６１、第２二方弁６２を用いているが、図５の実施例２に示すように、冷温冷水を三方弁(ＭＶ３)６３を用いれば、１この制御弁ですみ構成が簡単になる。
なお、本発明の特徴を損うものでなければ、上記の各実施例に限定されるものでないことは勿論であり、実施例では第１空気通路を外気とし、第２空気通路を還気としたが、これに限定されることはない。 [Example 2]
Here, in the first embodiment, the two first two-way valves 61 and the second two-way valve 62 are used to supply the cold water to the two coils. However, as shown in the second embodiment in FIG. If a three-way valve (MV3) 63 is used for cold water, the configuration can be simplified with only one control valve.
Of course, the present invention is not limited to the above-described embodiments as long as the characteristics of the present invention are not impaired. In the embodiments, the first air passage is used as outside air, and the second air passage is used as return air. However, it is not limited to this.

１１・・外気ＯＡ、１１１・・外気調整ダンパ(ＭＤ１)、
１２・・還気ＲＡ、１２１・・還気調整ダンパ(ＶＤ１)、
１３・・バイパス通路、１３１・・混合調整ダンパ(ＶＤ２)
２１・・第１空気通路、２２・・第２空気通路、２３・・バイパス通路、
３１・・第１コイル(第１熱交換器)、３１１・・入口配管、３１２・・出口配管、
３１３・・中間配管、３１４・・排水配管、
３２・・第２コイル(第２熱交換器)、
４・・ファン、４２・・給気ファン室、４３・・給気口
５・・給気ＳＡ
６１・・第１二方弁、６２・・第２二方弁、６３・・三方弁、
７,７'・・空調機枠体、７１・・隔壁、７２・・給気口、
７３・・第１チャンバー、７３１・・第１フィルター、７３２・・差圧計
７４・・第２チャンバー、７４１・・第２フィルター、７４２・・流入口
８・・加湿器、８１・・配管、８２・・加湿電磁弁、
９・・空調制御装置、９１・・温湿度検出器、９２・・温湿度検出器、 11..Outside air OA, 111..Outside air adjustment damper (MD1),
12. ・ Return air RA, 121 ・ ・ Return air adjustment damper (VD1),
13. ・ Bypass passage, 131 ・ ・ Mixing adjustment damper (VD2)
21 .. First air passage, 22 .. Second air passage, 23 .. Bypass passage,
31 .. First coil (first heat exchanger), 311 .. Inlet piping, 312 .. Outlet piping,
313 ... Intermediate piping, 314 ... Drain piping,
32 .. Second coil (second heat exchanger),
4 .... Fan 42 ... Air supply fan room 43 ... Air supply port 5 ... Air supply SA
61 .. First two-way valve, 62 .. Second two-way valve, 63 .. Three-way valve,
7,7 '... Air conditioner frame, 71 ... Bulk, 72 ... Air supply port,
73 .. First chamber, 731 .. First filter, 732 .. Differential pressure gauge 74 .. Second chamber, 741 .. Second filter, 742 .. Inlet 8 .. Humidifier, 81. ..Humidifying solenoid valve,
9 .... Air conditioning control device, 91 ... Temperature / humidity detector, 92 ... Temperature / humidity detector,

Claims (4)

外気又は還気を取込で給気する第１空気通路と第２空気通路とを設け、
第１空気通路に第１コイルを第２空気通路に第２コイルをそれぞれ配置し、
該第１コイルには制御装置によって低温冷水の水量を制御可能に供給して第１空気通路の空気を冷房し、
該第１コイルから排出された中温冷水を第２コイルに供給して空気を冷房して排水するとともに、第２コイルに供給する前記中温冷水には制御装置によって前記低温冷水の水量を制御可能に混合して第２空気通路の空気を冷房し、
更に、冷房された第１空気通路と第２空調通路との空気を混合して給気したことを特徴とする空調システム。 Providing a first air passage and a second air passage for taking in outside air or return air and supplying them;
A first coil in the first air passage and a second coil in the second air passage,
The first coil is supplied with controllable amount of low-temperature cold water by a control device to cool the air in the first air passage,
The medium-temperature cold water discharged from the first coil is supplied to the second coil to cool and drain the air, and the amount of the low-temperature cold water can be controlled by the controller in the medium-temperature cold water supplied to the second coil. Mix and cool the air in the second air passage,
Further, the air conditioning system is characterized in that the air in the cooled first air passage and the second air conditioning passage is mixed and supplied. 前記第２空気通路の導入される外気又は還気の１部をバイパス通路及び調整装置によって調整可能に前記第１空気通路の導入される外気又は還気に混合することを特徴とする請求項１に記載の空調システム。   2. A part of outside air or return air introduced into the second air passage is mixed with outside air or return air introduced into the first air passage so as to be adjustable by a bypass passage and an adjusting device. The air conditioning system described in. 少なくとも、前記第１コイルの制御装置又は第２コイルの制御装置は、二方弁であることを特徴とする請求項１又は請求項２に記載の空調システム。   The air conditioning system according to claim 1 or 2, wherein at least the control device for the first coil or the control device for the second coil is a two-way valve. 前記第１コイルの制御装置と第２コイルの制御装置と１つの三方弁としたことを特徴とする請求項１又は請求項２に記載の空調システム。   The air conditioning system according to claim 1 or 2, wherein the first coil control device, the second coil control device, and one three-way valve are used.
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