JPH0435655B2 - - Google Patents
Info
- Publication number
- JPH0435655B2 JPH0435655B2 JP59144451A JP14445184A JPH0435655B2 JP H0435655 B2 JPH0435655 B2 JP H0435655B2 JP 59144451 A JP59144451 A JP 59144451A JP 14445184 A JP14445184 A JP 14445184A JP H0435655 B2 JPH0435655 B2 JP H0435655B2
- Authority
- JP
- Japan
- Prior art keywords
- air volume
- gas concentration
- fan
- concentration
- jet flow
- 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
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- Ventilation (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は地下駐車場等のガス濃度分布の不均一
な室内に適用して該室内全体を均一且つ適正なガ
ス濃度分布にする空気調和装置に関する。Detailed Description of the Invention (Industrial Application Field) The present invention is an air conditioner that can be applied to a room where the gas concentration distribution is uneven, such as an underground parking lot, to make the entire room have a uniform and appropriate gas concentration distribution. Regarding.
（従来の技術）
従来のこの種装置として、ガス濃度分布の不均
一な地下駐車場内にて、該ガス濃度の大きさに応
じて風量が増大する換気装置のみを設けたもの
と、該駐車場内に一定風量の換気装置及びジエツ
ト流噴出装置を設けたものとが知られる。(Prior art) Conventional devices of this type include one that is installed only in an underground parking lot where the gas concentration distribution is uneven, and one that is equipped with only a ventilation device that increases the air volume according to the magnitude of the gas concentration; It is known to be equipped with a ventilation device with a constant air volume and a jet flow blowout device.
（発明が解決しようとする問題点）
前者の場合は、吹出口及び吹込口を駐車場内に
等分に配置しなければならないため、風道の数が
多くなると共にそれら風道の設置スペースを確保
することが困難であり、また、換気風量を少なく
したときに該駐車場内のガス濃度分布が吹均一に
なることがあるため、ガス濃度が常時高くなると
予想される箇所にガスセンサを配置し、その箇所
のガス濃度に合わせて換気風量を、該駐車場内全
体のガス濃度の平均値に対応した換気風量より多
くなるように制御して該駐車場内のガス濃度が均
一になるようにしており、これによれば、送・排
風機が必要最小動力で駆動されなくなり、無駄な
動力を費やす結果となつて好ましくなく、しかも
ガス濃度が常時高くなる箇所を発見するにも特殊
な技術が必要である等の不都合を伴う。(Problem to be solved by the invention) In the former case, the air outlets and air inlets must be arranged evenly within the parking lot, which increases the number of air ducts and requires a sufficient space for the installation of these air ducts. In addition, when the ventilation air volume is reduced, the gas concentration distribution in the parking lot may become uniform. Therefore, gas sensors are placed in locations where the gas concentration is expected to be constantly high. The ventilation air volume is controlled according to the gas concentration in the area so that it is higher than the ventilation air volume that corresponds to the average value of the gas concentration in the entire parking lot, so that the gas concentration in the parking lot is uniform. According to the report, the blower/exhaust fan is no longer driven at the minimum required power, resulting in wasted power, which is undesirable, and special technology is required to discover locations where the gas concentration is constantly high. accompanied by the inconvenience of
後者の場合には、駐車場内にジエツト流を噴出
させるので、ガス濃度分布が不均一になることは
ないが、風量が一定であるため、ガス濃度が低い
ときには風量が過剰となるため、その過剰分に対
応した換気装置及びジエツト流噴出装置の過剰動
力が費やされることとなり好ましくなく、また、
その過剰動力分だけ換気装置の給・排気風道から
発生される騒音及びジエツト流噴出装置のノズル
から発生される騒音が大きくなり、駐車場内の環
境を極めて悪くする不都合を伴う。 In the latter case, the jet flow is ejected into the parking lot, so the gas concentration distribution will not become uneven, but since the air volume is constant, when the gas concentration is low, the air volume will be excessive. It is undesirable that excessive power of the ventilation system and jet flow jetting device corresponding to the amount of time will be used.
The excess power increases the noise generated from the supply/exhaust air ducts of the ventilation system and the noise generated from the nozzles of the jet flow jetting device, resulting in the inconvenience of extremely worsening the environment in the parking lot.
（問題点が解決しようとする手段）
本発明は上記従来装置の不都合を解消する装置
を提供しようとするものであつて、CO2等のガス
のガス濃度分布の不均一な室内に、該ガス濃度の
許容値以上で駆動し、その濃度の大きさに応じて
風量が増大する換気装置と、前記ガス濃度の許容
値以下の時には該ガス濃度の大きさに応じて風量
が増大し、該換気装置の駆動時にはその風量の増
加分だけ風量が減少するジエツト流噴出装置とを
設けたことを特徴とする。(Means for Solving the Problems) The present invention aims to provide an apparatus that eliminates the disadvantages of the conventional apparatuses described above, and is intended to provide an apparatus that eliminates the inconveniences of the above - mentioned conventional apparatus. A ventilation system that operates when the gas concentration exceeds a permissible value and increases the air volume according to the concentration, and a ventilation system that operates when the gas concentration exceeds the permissible value and increases the air volume according to the gas concentration. The present invention is characterized in that it is provided with a jet flow jetting device whose air volume decreases by an amount corresponding to an increase in air volume when the device is driven.
（実施例）
次に本発明を図示の実施例について説明する。
第１図は、本発明を地下駐車場に適用した場合の
実施例を示すもので、ガス濃度分布の不均一な室
内たる駐車場１内には、その天井壁面の中央部
に、ジエツト流噴出装置を構成する４台のノズル
型吹込出口を有する第１フアン２，２，２，２が
並設され、その側壁面の上部に、換気装置を構成
する２台の例えばルーバ型吹出口を有する第２フ
アン３，４と１台の例えばルーバ型吸込口を有す
る第３フアン５とが設置される。(Embodiments) Next, the present invention will be described with reference to illustrated embodiments.
FIG. 1 shows an embodiment in which the present invention is applied to an underground parking lot. First fans 2, 2, 2, 2 having four nozzle-type blow-off ports constituting the device are arranged in parallel, and two, for example, louver-type blow-off ports constituting the ventilation device are provided in the upper part of the side wall surface thereof. Second fans 3, 4 and a third fan 5 having, for example, a louver-shaped suction port are installed.
第１図において６はCO2濃度の大きさに応じて
出力電流が増大するCO2濃度形７のセンサー部を
示す。 In FIG. 1, reference numeral 6 indicates a sensor section 7 of the CO 2 concentration type whose output current increases according to the magnitude of the CO 2 concentration.
上記７台のフアン２，２，２，２，３，４，５
はCO2濃度計７の出力電流の大きさに応じて外部
のマイクロコンピユータ８により制御されるもの
で、これを第２図のブロツク図及び第３図のCO2
濃度計から発生される出力電流と各フアンの運転
状況との関連説明図に基づいて説明する。 The above 7 fans 2, 2, 2, 2, 3, 4, 5
is controlled by an external microcomputer 8 according to the magnitude of the output current of the CO 2 concentration meter 7.
The explanation will be based on an explanatory diagram of the relationship between the output current generated from the concentration meter and the operating status of each fan.
(イ) 車等から発生される排ガス中のCO2により駐
車場１内に増加されるCO2濃度が350ppm以下
（CO2濃度計７の出力電流が6mA以下）である
場合
この場合には、マイクロコンピユーター８か
らの指令により、４台の第１フアン２，２，
２，２だけが実際のCO2濃度の大きさに応じた
回転数〔rpm〕・風量〔CMH〕で駆動され、第
１図点線に示すようなジエツト流が形成され
て、駐車場１内のCO2濃度が均一且つ適正にさ
れる。(b) When the CO 2 concentration increased in the parking lot 1 due to CO 2 in the exhaust gas generated from cars, etc. is 350 ppm or less (the output current of the CO 2 concentration meter 7 is 6 mA or less) In this case, Based on instructions from the microcomputer 8, the four first fans 2, 2,
Only 2 and 2 are driven at the rotation speed [rpm] and air volume [CMH] according to the actual CO 2 concentration, and a jet flow as shown in the dotted line in Figure 1 is formed, and the jet flow in the parking lot 1 is CO 2 concentration is made uniform and appropriate.
(ロ) 駐車場１内に増加されるCO2濃度が350ppm
乃至635ppm（CO2濃度計７の出力電流が6mA
乃至17.5mA）である場合
この場合には、マイクロコンピユータ８から
の指令により、４台の第１フアン２，２，２，
２と１台の第２フアン３と１台の第３フアン５
とが駆動される。このとき、第２フアン３及び
第３フアン５は実際のCO2濃度の大きさに応じ
て回転数・風量が増大するように駆動され、４
台の第１フアン２，２，２，２は、第２フアン
３及び第３フアン５の風量の増加だけ風量が減
少するように駆動されて、第１図点線示のよう
なジエツト流が形成されると共に換気が行なわ
れて、駐車場１内のCO2濃度が均一且つ適正に
される。(b) Increased CO 2 concentration in parking lot 1 to 350ppm
to 635ppm (the output current of CO 2 concentration meter 7 is 6mA)
In this case, the command from the microcomputer 8 causes the four first fans 2, 2, 2,
2 and one second fan 3 and one third fan 5
is driven. At this time, the second fan 3 and the third fan 5 are driven to increase the rotation speed and air volume according to the actual CO 2 concentration.
The first fans 2, 2, 2, 2 of the stand are driven so that the air volume decreases by the increase in the air volume of the second fan 3 and third fan 5, and a jet flow as shown by the dotted line in Figure 1 is formed. At the same time, ventilation is performed to make the CO 2 concentration in the parking lot 1 uniform and appropriate.
(ハ) 駐車場１内に増加されるCO2濃度が635ppm
以上（CO2濃度計７の出力電流が17.5mA以上）
の極めて稀な場合
この場合には、マイクロコンピユータ８から
の指令により、４台の第１フアン２，２，２，
２と２台の第２フアン３，４と１台の第３フア
ン５とが駆動される。このとき、実際のCO2濃
度とは関係なく、４台の第１フアン２，２，
２，２は、最小回転数（200rpm）・最小風量で
駆動され、１台の第２フアン３は設定した最大
回転数（1500rpm）・最大風量（145000CMH）
で駆動され、もう１台の第２フアン４は所定の
回転数（1500rpm）・風量（48000CMH）で駆
動され、第３フアン５は設定した最大回転数
（1500rpm）・最大風量（193000CMH）で駆動
されて、第１図点線に示すようなジエツト流が
形成されると共に換気が行なわれて、駐車場１
内のCO2濃度が均一且つ適正にされる。(c) Increased CO 2 concentration in parking lot 1 to 635ppm
or more (output current of CO 2 concentration meter 7 is 17.5mA or more)
In this case, the command from the microcomputer 8 causes the four first fans 2, 2, 2,
2, two second fans 3 and 4, and one third fan 5 are driven. At this time, regardless of the actual CO 2 concentration, the four first fans 2, 2,
2 and 2 are driven at the minimum rotation speed (200 rpm) and minimum air volume, and one second fan 3 is driven at the set maximum rotation speed (1500 rpm) and maximum air volume (145000 CMH).
The other second fan 4 is driven at a predetermined rotation speed (1500 rpm) and air volume (48000 CMH), and the third fan 5 is driven at the set maximum rotation speed (1500 rpm) and maximum air volume (193000 CMH). As a result, a jet flow as shown by the dotted line in Figure 1 is formed, and ventilation is carried out, and the parking lot 1
The CO 2 concentration inside is made uniform and appropriate.
尚、前記第１フアン２の回転数制御は例えば従
来公知のPAM方式のインバータを利用して行な
う。 Note that the rotation speed of the first fan 2 is controlled using, for example, a conventionally known PAM type inverter.
上記実施例においては、可変風量の１台の第２
フアン３及び１台の第３フアン５と、一定風量の
１台の第２フアン４とで換気装置を構成したが、
これを１組としてその複数組を用意し、各組毎に
マイクロコンピユーターにより駆動制御するよう
にしても良い。 In the above embodiment, one second unit with variable air volume
A ventilation system was configured with a fan 3, one third fan 5, and one second fan 4 with a constant air volume.
This may be considered as one set, and a plurality of sets thereof may be prepared, and each set may be driven and controlled by a microcomputer.
また、駐車場１内に増加されるCO2濃度が
635ppm以上の場合、上記実施例では一定風量の
第２フアン４を駆動させて、駐車場１内のCO2濃
度を均一にしたが、この第２フアン４を省略し、
可変風量の第２フアン３の最大風量を上記実施例
の場合より大きくすることによつても、CO2濃度
を均一にすることが可能である。 In addition, the CO 2 concentration increased in parking lot 1
In the case of 635 ppm or more, in the above embodiment, the second fan 4 with a constant air volume is driven to make the CO 2 concentration in the parking lot 1 uniform, but this second fan 4 is omitted,
It is also possible to make the CO 2 concentration uniform by making the maximum air volume of the variable air volume second fan 3 larger than in the above embodiment.
さらに、第１図に示すものでは、第１フアン２
のノズルを水平に設けたが、これに限るものでは
なく、例えば垂直に設けることもでき、この場合
には、第１フアン２のみの駆動中は、第４図に示
すようなジエツト流が形成され、第１・第２・第
３フアン２，３，４の駆動中は、第５図に示すよ
うなジエツト流及び換気流が形成される。 Furthermore, in the one shown in FIG. 1, the first fan 2
Although the nozzle is installed horizontally, the nozzle is not limited to this. For example, it can be installed vertically. In this case, while only the first fan 2 is being driven, a jet flow as shown in FIG. 4 is formed. While the first, second, and third fans 2, 3, and 4 are being driven, a jet flow and a ventilation flow as shown in FIG. 5 are formed.
（発明の効果）
このように本発明によるときは、ガス濃度分布
の不均一な室内にジエツト流噴出装置と換気装置
とを設け、ガス濃度が許容値以下の場合は、ジエ
ツト流噴出装置のみを駆動させ、そのガス濃度の
大きさに応じた比較的少ない風量のジエツト流を
噴出させて、該室内のガス濃度分布を均一になる
ようにし、また、ガス濃度が許容値以上の場合
は、ジエツト流噴出装置と換気装置とを共に駆動
させ、該換気装置による換気風量をそのガス濃度
の大きさに応じて増大させると共に、該ジエツト
流噴出装置によるジエツト流の風量を該換気装置
の風量の増加分だけ減少させて、該室内のガス濃
度分布を均一にするようにしたので、可変風量の
換気装置のみにより室内のガス濃度分布を均一に
する前記従来装置に比して風道の数が少なくな
り、風道の設置スペースが容易に確保できて有利
であり、また、該換気装置とジエツト流噴出装置
を常に適正な最小動力で駆動させることができる
ので、省エネルギー対策上有利となると共に騒音
を最小限に抑えることができて室内の環境を良好
に保つことができる効果を有する。(Effects of the Invention) As described above, according to the present invention, a jet flow jetting device and a ventilation device are installed in a room where the gas concentration distribution is uneven, and when the gas concentration is below a permissible value, only the jet flow jetting device is installed. The jet is driven to blow out a relatively small amount of jet flow according to the size of the gas concentration, so as to make the gas concentration distribution in the room uniform. A flow jetting device and a ventilation device are both driven, and the ventilation air volume by the ventilation device is increased in accordance with the magnitude of the gas concentration, and the jet flow volume by the jet flow jetting device is increased by the air volume of the ventilation device. The number of air ducts is reduced compared to the conventional system that uses only a variable air volume ventilation system to uniformize the gas concentration distribution in the room. This is advantageous in that the installation space for the wind duct can be easily secured, and the ventilation system and jet flow jetting system can always be driven with an appropriate minimum power, which is advantageous in terms of energy conservation and reduces noise. It has the effect of being able to keep the indoor environment in a good condition by minimizing it.
第１図は本案装置の１例を示す説明図、第２図
はそのブロツク図、第３図はガス濃度と、換気装
置及びジエツト流噴出装置を構成するフアンの運
転状態との関係を示す説明図、第４図及び第５図
は本案装置の変形例を示す説明図である。
１……駐車場（ガス濃度分布の不均一な室）、
２……第１フアン（ジエツト流噴出装置）、３，
４，５……第２・第３フアン（換気装置）。
Fig. 1 is an explanatory diagram showing one example of the proposed device, Fig. 2 is a block diagram thereof, and Fig. 3 is an explanatory diagram showing the relationship between gas concentration and the operating state of the fan constituting the ventilation device and the jet flow jetting device. 4 and 5 are explanatory diagrams showing modified examples of the present device. 1... Parking lot (room with uneven gas concentration distribution),
2...first fan (jet flow jetting device), 3,
4, 5...Second and third fans (ventilation system).
Claims (1)
に、該ガス濃度の許容値以上で駆動し、その濃度
の大きさに応じて風量が増大する換気装置と、前
記ガス濃度の許容値以下の時には該ガス濃度の大
きさに応じて風量が増大し、該換気装置の駆動時
にはその風量の増加分だけ風量が減少するジエツ
ト流噴出装置とを設けたことを特徴とする空気調
和装置。1. In a room where the gas concentration distribution of a gas such as CO 2 is uneven, a ventilation device that is operated at a gas concentration higher than the permissible value and whose air volume increases according to the magnitude of the concentration, and a ventilation device that is operated at a gas concentration higher than the permissible value, and the permissible value of the gas concentration. An air conditioner characterized by being provided with a jet flow blowing device which increases the air volume according to the magnitude of the gas concentration in the following cases, and reduces the air volume by the increased air volume when the ventilation device is activated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14445184A JPS6124931A (en) | 1984-07-13 | 1984-07-13 | Air-conditioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14445184A JPS6124931A (en) | 1984-07-13 | 1984-07-13 | Air-conditioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6124931A JPS6124931A (en) | 1986-02-03 |
| JPH0435655B2 true JPH0435655B2 (en) | 1992-06-11 |
Family
ID=15362542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14445184A Granted JPS6124931A (en) | 1984-07-13 | 1984-07-13 | Air-conditioning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6124931A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5215498A (en) * | 1991-03-04 | 1993-06-01 | Gaztech International Corporation | Ventilation controller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59107127A (en) * | 1982-12-09 | 1984-06-21 | Nippon Furekuto Kk | Method for ventilating parking lot |
-
1984
- 1984-07-13 JP JP14445184A patent/JPS6124931A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6124931A (en) | 1986-02-03 |
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