JPH02233933A - Variable air volume type air conditioner - Google Patents
Variable air volume type air conditionerInfo
- Publication number
- JPH02233933A JPH02233933A JP1054326A JP5432689A JPH02233933A JP H02233933 A JPH02233933 A JP H02233933A JP 1054326 A JP1054326 A JP 1054326A JP 5432689 A JP5432689 A JP 5432689A JP H02233933 A JPH02233933 A JP H02233933A
- Authority
- JP
- Japan
- Prior art keywords
- air
- room
- air volume
- concentration
- control valve
- 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.)
- Pending
Links
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はビルの室内空気調和装置に関し、特に可変風量
式の空気調和装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an indoor air conditioner for a building, and particularly to a variable air volume type air conditioner.
従来、この種の可変風量式空気調和装置は第４図に示す
ように、空調機１３内の冷温水コイル１５で冷却又は加
熱され、一定温度となった空気を給気ファン１４で加圧
し、給気ダクト１６を通して、可変風量ユニット（以下
、ＶＡＮユニットという）１７に送り、ＶＡＮユニット
１７で室内へ吹き出す空気量を調節する方式となってお
り、ＶＡＮユニット１７で室内へ吹き出す空気量を調節
する方式については以下のようになっていた，
室内温度の計測値により、ＶＡＮユニット１７内の風量
調節弁ｌ８の開度を制御することにより、室内へ吹き出
す空気量を変化させて室内温度の調節を行う。ただし、
室内のＧｏ， ＄度が高まることを避けるために風量調
節弁ｌ８の開度は，予め設定されている最小開度（通常
３０％）以下とすることができないようになっていた。Conventionally, this type of variable air volume type air conditioner, as shown in FIG. The air is sent to a variable air volume unit (hereinafter referred to as a VAN unit) 17 through an air supply duct 16, and the VAN unit 17 adjusts the amount of air blown into the room.The VAN unit 17 adjusts the amount of air blown into the room. The method was as follows. By controlling the opening degree of the air volume control valve l8 in the VAN unit 17 based on the measured value of the indoor temperature, the amount of air blown into the room was changed to adjust the indoor temperature. conduct. however,
In order to prevent the Go, $ degree in the room from increasing, the opening degree of the air volume control valve l8 cannot be lower than a preset minimum opening degree (usually 30%).
１９は室内温度調節器、２０は温度計、２１は排気ファ
ン、２２は排気ダクトである。19 is an indoor temperature controller, 20 is a thermometer, 21 is an exhaust fan, and 22 is an exhaust duct.
上述した従来の可変風量式空気調和装置は、室内のＣＯ
， ａ度が高くなることを避けるために、風？調節弁１
８の最小開度を大きめに設定しており、冷房時での室内
温度が過度に低い場合、また暖房時での室内温度が過度
に高い場合、風量調節弁１８の開度を小さくしようとし
ても、予め設定されている最小開度より小さくすること
ができず、室内環境が悪化するという欠点がある。The conventional variable air volume air conditioner described above reduces indoor CO
, In order to avoid high a degree, wind? Control valve 1
8 is set to a large value, and if the indoor temperature during cooling is excessively low, or when the indoor temperature is excessively high during heating, even if you try to reduce the opening of the air volume control valve 18. However, the opening degree cannot be made smaller than a preset minimum opening degree, which has the disadvantage that the indoor environment deteriorates.
また、上記の欠点をなくすために風量調節弁ｌ８の最小
開度を小さく設定すると、室内のＣＯ■濃度が高まると
いう欠点をもつことになる。Furthermore, if the minimum opening degree of the air volume control valve 18 is set small in order to eliminate the above-mentioned drawback, there will be a drawback that the indoor CO2 concentration will increase.
本発明の目的は前記課題を解決した可変風量式空気調和
装置を提供することにある。An object of the present invention is to provide a variable air volume type air conditioner that solves the above problems.
前記目的を達成するため、本発明は室内の温度・湿度・
ＣＯ２濃度の制御を行う空気調和装置のうち，可変風量
ユニット内の風量調節弁の開度を室内温度により制御す
ることにより、室内への送風量を変化させて室内温度の
制御を行う可変風量式空気調和装置において、室内より
排気される空気のＣＯ■濃度の計測を行うＣＯ■濃度計
と、該ＣＯ２濃度計によるＣ０２濃度計測値により前記
可変風量ユニット内の風量調節弁の最小開度の値を補正
する最小開度調節器を装備したものである。In order to achieve the above object, the present invention improves indoor temperature, humidity,
Among air conditioners that control CO2 concentration, variable air volume type controls the indoor temperature by changing the amount of air blown into the room by controlling the opening degree of the air volume control valve in the variable air volume unit depending on the indoor temperature. In an air conditioner, a CO concentration meter measures the CO concentration of air exhausted from the room, and a value of the minimum opening degree of the air volume control valve in the variable air volume unit based on the CO concentration measured by the CO concentration meter. It is equipped with a minimum opening adjuster that corrects the
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例を示す構成図である。FIG. 1 is a block diagram showing an embodiment of the present invention.
図において、空調機１は冷温水コイル１２と給気ファン
１１とにより構成され、冷温水コイル１２を通った空気
は給気ファン１１で加圧されて給気ダクト２を通り、室
内側の可変風量ユニット３へ送られ、可変風量ユニット
３より室内へ吹き出される。室内の空気は排気ダクト１
０を通り、排気ファン９で加圧されて、一部は外気へ排
気され、一部は空調機１へ戻される。４は可変風量ユニ
ット（ＶＡＮユニット）３の風量調節弁、５は室内温度
調節器、６は温度計、７はＣ０２濃度計、８は最小開度
調節器である。In the figure, an air conditioner 1 is composed of a cold/hot water coil 12 and an air supply fan 11. Air that has passed through the cold/hot water coil 12 is pressurized by the air supply fan 11, passes through a supply air duct 2, and is then passed through the air supply duct 2. The air is sent to the air volume unit 3 and blown into the room by the variable air volume unit 3. Indoor air is supplied through exhaust duct 1
0, is pressurized by the exhaust fan 9, part of it is exhausted to the outside air, and part of it is returned to the air conditioner 1. 4 is an air volume control valve of a variable air volume unit (VAN unit) 3, 5 is an indoor temperature controller, 6 is a thermometer, 7 is a C02 concentration meter, and 8 is a minimum opening controller.
本装置の暖房時の動作を説明する。室内の温度計６によ
り計測された室内温度によって室内温度調節器５にてＶ
ＡＮユニット３内の風量調節弁４の開度を制御すること
により，空調機１より暖められ給気ダクト２を通して送
風されてきた空気のＶＡＮユニット３から室内へ吹き出
す量を制御する。The operation of this device during heating will be explained. The indoor temperature controller 5 adjusts V according to the indoor temperature measured by the indoor thermometer 6.
By controlling the opening degree of the air volume control valve 4 in the AN unit 3, the amount of air warmed by the air conditioner 1 and blown through the air supply duct 2 blown into the room from the VAN unit 3 is controlled.
暖かい空気の室内へ吹き出す量により、室内温度は調節
される。風量調節弁４の開度は第２図に示すように最小
開度から最大開度１００％までの間で決められ、式で表
わすと以下のようになる。The indoor temperature is regulated by the amount of warm air blown into the room. The opening degree of the air volume control valve 4 is determined between the minimum opening degree and the maximum opening degree of 100% as shown in FIG. 2, and is expressed by the following equation.
ＤＰＡ：（ＤＰＡｍＡＸ−１）ＰＡｍｔｎ）Ｔ／（ＴＡ
ＴＢ）＋（ＤＰＡｍ．ｎＸＴ＾ＤＰＡＩＩＩＡＸＸＴＢ
）／（ＴＡ Ｔｔｉ）但し、 ＤＰＡ ：風量調
節弁４の設定開度ＤＰＡＩ．ｌＡｘ：風量調節弁４の設
定開度の最大値ＤＰＡＩｌｌｉイ：風量調節弁４の設定
開度の最小値Ｔ＾ ：制御可能室内温度最大値
ＴＢ二制御可能室内温度最小値
Ｔ 二室内温度計測値
また、風量調節弁４の設定開度の最小値（上記のＤＰＡ
ｍｉｎ ）については第３図に示すようにＣＯ２濃度計
７で計測されたＣ０２濃度により、最小開度調節器８に
て決められる。式で表わすと次のようになる。DPA: (DPAmAX-1)PAmtn)T/(TA
TB)+(DPAm.nXT^DPAIIIAXXTB
)/(TA Tti) However, DPA: Set opening degree of the air volume control valve 4 DPAI. lAx: Maximum value of the set opening of the air volume control valve 4 DPAIlli: Minimum value of the set opening of the air volume control valve 4 T^: Maximum controllable indoor temperature TB2 Minimum controllable indoor temperature T2 Measured indoor temperature value In addition, the minimum value of the set opening degree of the air volume control valve 4 (the above DPA
min ) is determined by the minimum opening adjuster 8 based on the CO2 concentration measured by the CO2 concentration meter 7, as shown in FIG. Expressed as a formula, it is as follows.
ＤＰＡ．ｎ＝（ＤＰＡ’ａｕｕ ＤＰＡ’ｍｉｎ）Ｃｏ
ｘ／（ＣＪ）ｚ ＭＸ ＣＱｚ ｍＪ＋ （ＤＰＡＱ＋
１１１ＸＣＯ２ ｍＡｘ ｏｐＡ．ｘｘｃ０２ｍＪ／
（ＣＯｚ ｙｘ−ω２１。）？し、ＤＰＡｌｎＡｘ＝風
量調節弁４の設定最小開度の最大値ＤＰＡｍｉ。：風量
調節弁４の設定最小開度の最小値ＣＯｚ ＩＩＩＡＸ：
ＣＯ２濃度最大値ＣＯｚ Ｉｆｌｉｎ：Ｃｏ■濃度最小
値ＣＯ■ ： ＣＯ．濃度計測値
〔発明の効果〕
，以上説明したように本発明は室内より排気する空気の
ＣＯ■濃度計測値により、ＶＡＮユニット内の風量調節
弁の最小開度値を補正することにより、室内換気量、室
内温度による室内環境を維持することができる効果があ
る。D.P.A. n=(DPA'auu DPA'min)Co
x/(CJ)z MX CQz mJ+ (DPAQ+
111XCO2 mAx opA. xxc02mJ/
(COz yx-ω21.)? DPAlnAx=maximum value DPami of the set minimum opening degree of the air volume control valve 4. : Minimum value COz of the minimum opening degree of air volume control valve 4 IIIAX:
Maximum CO2 concentration COz Iflin: Co■ Minimum concentration CO■: CO. Concentration Measurement Value [Effect of the Invention] As explained above, the present invention improves indoor ventilation by correcting the minimum opening value of the air volume control valve in the VAN unit based on the CO concentration measurement value of the air exhausted from the room. It has the effect of maintaining the indoor environment depending on the amount and indoor temperature.
第１図は本発明の可変風量式空気調和装置を示す構成図
，第２図は室内温度と風量調節弁の設定開度の関係を示
す図、第３図は排気のＣＯ２濃度と風量調節弁の最小開
度との関係を示す図、第４図は従来の可変風量式空気調
和装置を示す構成図である。
１・・・空調機 ２・・・給気ダクト３・
・・可変風量ユニット（ＶＡＮユニット）４・・・風量
調節弁
６・・・温度計
８・・・最小開度調節器
１０・・・排気ダクト
１２・冷温水コイル
５・・・室内温度調節器
７・・・ＣＯ２濃度計
９・・・排気ファン
１１・・・給気ファンFig. 1 is a configuration diagram showing the variable air volume air conditioner of the present invention, Fig. 2 is a diagram showing the relationship between indoor temperature and the set opening of the air volume control valve, and Fig. 3 is a diagram showing the relationship between the CO2 concentration of exhaust gas and the air volume control valve. FIG. 4 is a block diagram showing a conventional variable air volume type air conditioner. 1... Air conditioner 2... Air supply duct 3.
・・Variable air volume unit (VAN unit) 4 ・Air volume control valve 6 ・Thermometer 8 ・Minimum opening controller 10 ・Exhaust duct 12 ・Cold/hot water coil 5 ・Indoor temperature controller 7... CO2 concentration meter 9... Exhaust fan 11... Air supply fan
Claims (1)
気調和装置のうち、可変風量ユニット内の風量調節弁の
開度を室内温度により制御することにより、室内への送
風量を変化させて室内温度の制御を行う可変風量式空気
調和装置において、室内より排気される空気のＣＯ＿２
濃度の計測を行うＣＯ＿２濃度計と、該ＣＯ＿２濃度計
によるＣＯ＿２濃度計測値により前記可変風量ユニット
内の風量調節弁の最小開度の値を補正する最小開度調節
器を装備したことを特徴とする可変風量式空気調和装置
。(1) Among air conditioners that control indoor temperature, humidity, and CO_2 concentration, the amount of air blown into the room is changed by controlling the opening degree of the air volume control valve in the variable air volume unit depending on the indoor temperature. In a variable air volume air conditioner that controls indoor temperature, CO_2 of air exhausted from the room
It is characterized by being equipped with a CO_2 concentration meter that measures the concentration, and a minimum opening degree adjuster that corrects the minimum opening value of the air volume control valve in the variable air volume unit based on the CO_2 concentration value measured by the CO_2 concentration meter. Variable air volume air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1054326A JPH02233933A (en) | 1989-03-07 | 1989-03-07 | Variable air volume type air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1054326A JPH02233933A (en) | 1989-03-07 | 1989-03-07 | Variable air volume type air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02233933A true JPH02233933A (en) | 1990-09-17 |
Family
ID=12967468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1054326A Pending JPH02233933A (en) | 1989-03-07 | 1989-03-07 | Variable air volume type air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02233933A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0464853A (en) * | 1990-07-04 | 1992-02-28 | Matsushita Seiko Co Ltd | Air conditioner |
| JPH04131655A (en) * | 1990-09-20 | 1992-05-06 | Kyodo Kogyo Kk | Centralized type air conditioning apparatus |
| JPH04143543A (en) * | 1990-10-04 | 1992-05-18 | Mitsubishi Electric Corp | Wind volume controller for air conditioner |
| CN101650066B (en) | 2009-09-16 | 2011-03-23 | 湖南大学 | Fresh air flow control device for central air-conditioning system |
| JP2012063104A (en) * | 2010-09-17 | 2012-03-29 | Mitsubishi Jisho Sekkei Inc | Air conditioning control device, air conditioning control system, and air conditioning control method |
| CN103604458A (en) * | 2013-10-17 | 2014-02-26 | 中国石油化工股份有限公司 | Industrial ventilation frequency measurement apparatus |
| JP2015190670A (en) * | 2014-03-28 | 2015-11-02 | 三機工業株式会社 | control method of VAV air conditioning system |
| CN111578463A (en) * | 2019-02-18 | 2020-08-25 | 新奥数能科技有限公司 | Method and device for adjusting fresh air valve of variable air volume air conditioning system |
| CN117419417A (en) * | 2023-12-04 | 2024-01-19 | 中国农业银行股份有限公司 | A control method and device for a variable air volume air conditioning system |
-
1989
- 1989-03-07 JP JP1054326A patent/JPH02233933A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0464853A (en) * | 1990-07-04 | 1992-02-28 | Matsushita Seiko Co Ltd | Air conditioner |
| JPH04131655A (en) * | 1990-09-20 | 1992-05-06 | Kyodo Kogyo Kk | Centralized type air conditioning apparatus |
| JPH04143543A (en) * | 1990-10-04 | 1992-05-18 | Mitsubishi Electric Corp | Wind volume controller for air conditioner |
| CN101650066B (en) | 2009-09-16 | 2011-03-23 | 湖南大学 | Fresh air flow control device for central air-conditioning system |
| JP2012063104A (en) * | 2010-09-17 | 2012-03-29 | Mitsubishi Jisho Sekkei Inc | Air conditioning control device, air conditioning control system, and air conditioning control method |
| CN103604458A (en) * | 2013-10-17 | 2014-02-26 | 中国石油化工股份有限公司 | Industrial ventilation frequency measurement apparatus |
| JP2015190670A (en) * | 2014-03-28 | 2015-11-02 | 三機工業株式会社 | control method of VAV air conditioning system |
| CN111578463A (en) * | 2019-02-18 | 2020-08-25 | 新奥数能科技有限公司 | Method and device for adjusting fresh air valve of variable air volume air conditioning system |
| CN117419417A (en) * | 2023-12-04 | 2024-01-19 | 中国农业银行股份有限公司 | A control method and device for a variable air volume air conditioning system |
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