JPH0136016B2 - - Google Patents
Info
- Publication number
- JPH0136016B2 JPH0136016B2 JP58168920A JP16892083A JPH0136016B2 JP H0136016 B2 JPH0136016 B2 JP H0136016B2 JP 58168920 A JP58168920 A JP 58168920A JP 16892083 A JP16892083 A JP 16892083A JP H0136016 B2 JPH0136016 B2 JP H0136016B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- air
- vav
- room temperature
- cooling
- 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
Links
- 238000001816 cooling Methods 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000007664 blowing Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 102100032191 Guanine nucleotide exchange factor VAV3 Human genes 0.000 description 12
- 101000775742 Homo sapiens Guanine nucleotide exchange factor VAV3 Proteins 0.000 description 12
- 238000004378 air conditioning Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Air Conditioning Control Device (AREA)
Description
【発明の詳細な説明】
本発明はビル内の冷暖房などを行う空調機で、
可変風量ユニツト（以下VAVと称す）を使用す
るものの送風温度制御方法に関する。[Detailed Description of the Invention] The present invention is an air conditioner that performs heating and cooling in a building.
This invention relates to a method for controlling the air temperature of a device that uses a variable air volume unit (hereinafter referred to as VAV).
まず、かかるVAV使用の空調設備の一般例を
説明し、よつて本発明の目的を明らかにする。 First, a general example of air conditioning equipment using such a VAV will be explained, thereby clarifying the purpose of the present invention.
第１図はVAV使用の空調設備の説明図で、図
中１は温水コイル１ａ、冷水コイル１ｂ及び送風
機１ｃを備えた冷暖房兼用の空調機、２は該空調
機１からの送風ダクト、３，３′………はダクト
末端に設けたVAVを示す。４は空調機１への外
気の取り入れダクト、５は室内空気の戻りダク
ト、６は温水コイル１ａへの温水配管、７は冷水
コイル１ｂへの冷水配管で、ダクト５と２とに温
度センサー８，９を設け、配管６，７に設けたバ
ルブ１０，１１を開閉するコントローラ１２を切
換えスイツチ１３を介して制御するようにしてい
る。 FIG. 1 is an explanatory diagram of an air conditioning system using a VAV. In the figure, 1 is an air conditioner for heating and cooling equipped with a hot water coil 1a, a cold water coil 1b, and a blower 1c; 2 is a blower duct from the air conditioner 1; 3; 3'...... indicates the VAV provided at the end of the duct. 4 is an intake duct for outside air to the air conditioner 1, 5 is a return duct for indoor air, 6 is a hot water pipe to the hot water coil 1a, 7 is a cold water pipe to the cold water coil 1b, and a temperature sensor 8 is installed between the ducts 5 and 2. , 9 are provided, and a controller 12 that opens and closes valves 10 and 11 provided in the pipes 6 and 7 is controlled via a changeover switch 13.
一方、VAV３，３′………は各々温度センサー
１４に接続されたコントローラ１５により制御さ
れ、また前記温度センサー９，１４にはもう一つ
の温度センサー９′，１４′を並べて設けてこれら
の温度検知出力信号をコンピユータのCPU（図示
せず）に導入し、該CPUからの出力信号を前記
コントローラ１２及び１５に導入して制御のため
のセツトポイント（S.P.）を定めるようにした。 On the other hand, VAV3, 3'...... are each controlled by a controller 15 connected to a temperature sensor 14, and the temperature sensors 9, 14 are provided with another temperature sensor 9', 14' in parallel to control their temperature. The detection output signal was introduced into a CPU (not shown) of a computer, and the output signal from the CPU was introduced into the controllers 12 and 15 to determine a set point (SP) for control.
このようにして、暖房を行うか冷房を行うかの
切換えはセンサー８や９で室内温度やダクト２内
の温度を考慮して決定し、スイツチ１３が切換わ
るとコントローラ１２を介してバルブ１０，１１
の開閉により冷暖房が行われる。また、VAV３，
３′………は温度センサー１４，１４′で比較され
た各室又はブロツク毎の設定温度と実際温度の差
によりコントローラ１５で開閉制御される。 In this way, the switching between heating and cooling is determined by the sensors 8 and 9 taking into account the indoor temperature and the temperature inside the duct 2, and when the switch 13 is switched, the valve 10, 11
Heating and cooling is performed by opening and closing. Also, VAV3,
3'... are controlled to open and close by the controller 15 based on the difference between the set temperature for each room or block and the actual temperature compared by the temperature sensors 14, 14'.
ところで、冷房の場合、冷水コイル１ｂで冷却
された冷気はダクト２を介してVAV３，３′……
…から吹き出され、冷却の程度は該VAV３，
３′………の開度が50％〜100％の間を変化するこ
とにより定められる。 By the way, in the case of air conditioning, the cold air cooled by the cold water coil 1b passes through the duct 2 to VAV3, 3'...
..., and the degree of cooling is the corresponding VAV3,
It is determined by changing the opening degree of 3' between 50% and 100%.
なお、図示は省略するがダクト２内には圧力セ
ンサーが設けられ、VAV３，３′………の開度が
変化してダクト２内に圧力が変化するとこれを該
センサーが検知して送風機１ｃの回転数を制御す
るようにした。 Although not shown, a pressure sensor is provided in the duct 2, and when the opening degree of VAV3, 3'... changes and the pressure in the duct 2 changes, this sensor detects this and the blower 1c is activated. The number of rotations is now controlled.
本発明の目的は以上説明したような可変風量ユ
ニツト〔VAV〕使用の空調設備において、最適
な居住性を確保しつつ従来よりも省エネルギー化
を図ることができる空調機の送風温度制御方法を
提供することにある。 The purpose of the present invention is to provide a method for controlling the temperature of air blowing from an air conditioner, which is capable of achieving greater energy savings than conventional methods while ensuring optimal livability in air conditioning equipment using a variable air volume unit (VAV) as described above. There is a particular thing.
しかしてこの目的は本発明によれば、温水コイ
ル、冷水コイル及び送風機を備えた冷暖房兼用の
空調機からの送風ダクト末端に、温度センサーに
接続されたコントローラにより制御される可変風
量ユニツト〔VAV〕を設けた空調設備において、
冷房時VAVが適正開度で制御されて室温が適正
範囲内にある状態が一定時間継続した場合に、設
定送風温度を下げ、この温度を得るように冷水コ
イルを制御して室温を下げ、かつVAVを少し閉
じるとともに、ダクト内の圧力センサーの出力を
もとにフアン動力を軽減して省エネルギー化を図
ることにより達成される。 However, according to the present invention, the purpose of this lever is to install a variable air volume unit [VAV] controlled by a controller connected to a temperature sensor at the end of the air duct from the air conditioner for heating and cooling, which is equipped with a hot water coil, a cold water coil, and a blower. In air conditioning equipment equipped with
When cooling VAV is controlled at the appropriate opening degree and the room temperature remains within the appropriate range for a certain period of time, the set air blowing temperature is lowered and the chilled water coil is controlled to obtain this temperature to lower the room temperature, and This is achieved by closing the VAV slightly and reducing fan power based on the output of the pressure sensor inside the duct to save energy.
以下、図面について本発明の実施例を詳細に説
明する。 Embodiments of the present invention will be described in detail below with reference to the drawings.
第２図は本発明方法の実施例を示すフローチヤ
ートで、空調機１を最適起動するためのプログラ
ムは、マイクロコンピユータ又はミニコンピユー
タ等に入力されていて、これにより各種コントロ
ーラを制御して空調システムを実行させる。 FIG. 2 is a flowchart showing an embodiment of the method of the present invention, in which a program for optimally starting the air conditioner 1 is input into a microcomputer or minicomputer, etc., which controls various controllers to create an air conditioning system. Execute.
まず、プログラムを作動させるに際し、当然の
ことながら空調機〔AC〕１が運転中であること
を条件とし（ステツプイ）、該空調機１が運転中
であつても予冷、予熱中でないことを条件とする
（ステツプロ）。この予冷、予熱中とは、別のプロ
グラムで実行するもので、人間が活動し始める朝
の所定時間までに室温を適正温度にするため予め
ある算出された時間冷房したり、暖房したりする
最適起動動作であるが、例えば何時間前に空調機
をかけたらよいかの判断を省略し、必ず定まつた
時間だけ余分に空調機を作動させる場合などはこ
のプログラムには従わず予冷、予熱中の動作に該
当しないことになる。 First, when running the program, the condition is that the air conditioner [AC] 1 is in operation (step), and even if the air conditioner 1 is in operation, it is not in the precooling or preheating condition. (Stetsupuro). This pre-cooling and pre-heating is executed by a separate program, and is the optimum time to cool or heat the room for a pre-calculated period of time in order to bring the room temperature to the appropriate temperature by a predetermined time in the morning when people begin to be active. This is a start-up operation, but if, for example, you want to omit the judgment of how many hours in advance the air conditioner should be turned on and always operate the air conditioner for a predetermined amount of time, this program will not be followed and the system will start precooling or preheating. This does not apply to the operation of
制御は１日を単位として行われるので、本日第
１回目のものであるか否かが調べられ、第１回目
のものであれば後述の各カウンタ（コンピユータ
のCPU内に機能的に形造られるもの）はすべて
零クリアされての動作準備を完了する（ステツプ
ハ、ニ）。 Since control is performed in units of one day, it is checked whether or not it is the first time today, and if it is the first time, each counter (described later) is All items) have been cleared to zero and are ready for operation (Step 2).
次に、暖房−冷房間の切替えモードが必要であ
るか否かを判断するが、この判断は月日テーブル
により行われ、例えば夏場は一度冷房を行えば暖
房に切替わることはなく、一方、中間期や冬など
は暖房→冷房への切替えモードが必要となる（ス
テツプホ）。 Next, it is determined whether a switching mode between heating and cooling is necessary, but this determination is made based on the month/day table; for example, in summer, once cooling is performed, it will not switch to heating; During the mid-season and winter, switching mode from heating to cooling is required (step-ho).
先に切替えの必要のない夏場について説明する
と、空調機１は冷房モードで作動し、VAV３，
３′………が活用されこれにより室温制御が行わ
れる。 First, let me explain about summer when there is no need to switch. Air conditioner 1 operates in cooling mode, and VAV3, VAV3,
3'... is used to control the room temperature.
以後、第１図の温度センサー１４により実際の
室温を計測しながらこの計測室温〔TR〕を月毎
又は季節毎に定められた目標設定温度〔TRV〕
に見合うように制御していく。かかる制御に際
し、計測室温〔TR〕が目標設定温度〔TRV〕−
補正数値〔α2〕（約１℃程度）よりも小さい場合、
すなわち、VAV３，３′………の開度が最少開度
（50％）を保ちながらそれでも室温が下がるとき
は、VAV３，３′………ではコントロール不可能
として下がり過ぎる室温を適正温度にするために
現在の設定送風温度〔TC〕を少し上げてやる
（ステツプル）。その結果、冷水コイル１ｂが絞ら
れて送風温度が上昇し、冷えすぎは解消される。
なお、かかる制御がなされる前段階では、後述の
カウンタは帰零される（ステツプヌ）。 Thereafter, while measuring the actual room temperature using the temperature sensor 14 shown in Fig. 1, this measured room temperature [TR] is set as the target temperature set for each month or season [TRV].
We will control it accordingly. During such control, the measured room temperature [TR] is equal to the target set temperature [TRV] -
If it is smaller than the correction value [α 2 ] (approximately 1℃),
In other words, if the opening degree of VAV3, 3'...... maintains the minimum opening degree (50%) and the room temperature still falls, it is assumed that VAV3, 3'...... cannot be controlled and the room temperature that is too low is set to the appropriate temperature. To do this, I will slightly raise the current set air temperature [TC] (step). As a result, the cold water coil 1b is throttled, the temperature of the air being blown increases, and the problem of excessive cooling is eliminated.
Note that before such control is performed, a counter described below is reset to zero (step).
一方、計測室温〔TR〕が目標設定温度
〔TRV〕±補正数値〔α2〕内に納まつている場合、
すなわちこの場合はVAV３，３′………は開度50
％〜100％までの間で適正に働き、最適なコント
ローラがなされた状態であるが、このような適正
温度制御の状態が一定時間継続した場合は設定送
風温度〔TC〕を下げてやる（ステツプカ）。一定
時間継続するか否かはカウンタを使用し、このカ
ウンタが所定回数起動したか否かをもつて判断
し、前記のごとく途中で条件を満たさなくなつた
場合は初めからカウントし直すことになる（ステ
ツプオ、ワ）。設定送風温度〔TC〕が下がれば、
室温も下がりVAV３，３′………も少し閉じる。
その結果、ダクト２内の圧力が上昇し、圧力セン
サーがこれを検知して送風機１ｃの回転数をダウ
ンさせるので省エネルギー化が図れる。 On the other hand, if the measured room temperature [TR] is within the target set temperature [TRV] ± correction value [α 2 ],
In other words, in this case, VAV3, 3'...... is the opening degree of 50
% to 100%, and the optimal controller is in place. However, if this state of proper temperature control continues for a certain period of time, lower the set air temperature [TC] (step controller). ). Whether or not it continues for a certain period of time is determined by using a counter and determining whether or not this counter has been activated a predetermined number of times.As mentioned above, if the condition is no longer met midway through, the count will be restarted from the beginning. (Steppuo, wa). If the set air temperature [TC] decreases,
The room temperature drops and VAV3, 3'... closes a little.
As a result, the pressure inside the duct 2 increases, and the pressure sensor detects this and reduces the rotation speed of the blower 1c, thereby saving energy.
さらに、計測室温〔TR〕目標設定温度
〔TRV〕±補正数値〔α2〕よりも大きい場合、同
じくカウンタを帰零し、次いで設定送風温度
〔TC〕を下げ、室内をより一層冷却して適正環境
を作り出す。 Furthermore, if the measured room temperature [TR] is larger than the target set temperature [TRV] ± correction value [α 2 ], the counter is reset to zero as well, and then the set air temperature [TC] is lowered to further cool the room to the appropriate temperature. Create an environment.
ところで、第３図は経時的要素をもとに室温と
ダクト２内の送風温度との関係例を示す図である
が、本図からも知見できるように、送風温度をも
とにして制御を行つた場合、実際室温にこの結果
が反映するには多少時間的ずれが生じるが、前記
制御はこのずれを調整するのに特に役立つ。 By the way, Fig. 3 is a diagram showing an example of the relationship between the room temperature and the air temperature inside the duct 2 based on elements over time. If this is done, there will be some time lag before this result is reflected in the actual room temperature, but the control described above is particularly useful for adjusting this lag.
次に、暖房−冷房の切替えモードが必要な場
合、モードがVAV３，３′………は全開に固定し
て行う制御か（CAVと称す）否かにより分け
（ステツプレ）、CAVは主として暖房モードの度
合となる。該CAVモードの場合、目標室温
〔TRC〕とCAVモードでの送風温度〔TD〕とを
対比し、TDがTRC−α3（補正数値約１℃程度）
より等しいか小さい場合、CAV切替え用カウン
タでの計数を開始し、所定回数に達した場合に冷
房（VAV）のモードに切替える（ステツプツ、
ネ、ナ）。これは、送風温度よりも室温が常に高
く暖房よりも冷房が必要であることによる。切替
え時にいきなりかなりの低温送風にするのは不可
能であるので、冷房のための送風温度はまず最大
にし、それから目標室温に従つて制御を続行する
（ステツプラ、ン）。 Next, when a switching mode between heating and cooling is required, the mode is VAV3, 3', etc. It is divided depending on whether the control is fixed at full open (referred to as CAV) or not, and CAV is mainly the heating mode. The degree of In the case of the CAV mode, compare the target room temperature [TRC] and the blowing temperature [TD] in CAV mode, and find that TD is TRC - α 3 (corrected value of about 1℃)
If the count is equal to or smaller than the above, the CAV switching counter starts counting, and when the predetermined number of times is reached, the mode is switched to air conditioning (VAV) (steps,
Ne, na). This is because the room temperature is always higher than the air temperature, and cooling is more necessary than heating. Since it is impossible to suddenly blow air at a considerably low temperature at the time of switching, the air temperature for cooling is first maximized, and then control is continued according to the target room temperature (Step Plan).
一方、送風温度〔TD〕が目標室温〔TRC〕−
補正数値〔α1〕よりも大きい場合には、暖房をそ
のまま続行することが適切なので、カウンタを帰
零し、月毎の目標温度にしたがつてレタン温度
（暖房用温度）を設定する（ステツプケ、フ）。 On the other hand, the blowing temperature [TD] is the target room temperature [TRC] -
If it is larger than the correction value [α 1 ], it is appropriate to continue heating as is, so the counter is reset to zero and the retan temperature (heating temperature) is set according to the monthly target temperature (step ,centre).
ステツプレにおいて切替えモードを選択する際
に、冷房モードでスタートする場合、計測室温
〔TR〕が目標室温〔TRV〕−補正数値〔α1〕より
も小さいか等しい場合（ステツプノ）、設定送風
温度〔TC〕は最大値であるか否かを判断し（ス
テツプク）、最大である場合すなわち送風温度が
高いにもかかわらず室温が下がつている場合には
VAV切替え用のカウンタで計測し、これが所定
回に達し、しかも未だ一回も暖房に切替えていな
い場合は暖房〔CAV〕モードが切替えを行う。
以後月毎の目標室温〔TRC〕に従つてレタン温
度（暖房用温度）を設定する（ステツプク、マ、
コ、ア、サ）。 When selecting the switching mode in step-up mode, if the measured room temperature [TR] is smaller than or equal to the target room temperature [TRV] - correction value [α 1 ] (step), the set air temperature [TC ) is the maximum value (step), and if it is the maximum value, that is, if the room temperature is decreasing even though the air temperature is high,
This is measured by a VAV switching counter, and if the number reaches a predetermined number of times and the mode has not been switched to heating even once, the mode is switched to heating [CAV] mode.
From then on, set the heating temperature (temperature for heating) according to the monthly target room temperature [TRC].
Ko, a, sa).
前記ステツプノで計測室温〔TR〕が目標室温
〔TRV〕−補正数値〔α1〕よりも大きい場合、若
しくは前記ステツプで送風温度〔TD〕が最大で
ない場合、これらはいずれも冷房モードを続行す
べき状態であり、前記VAV切替え用のカウンタ
を帰零し、ステツプリで行われる冷房時における
本発明の制御システムに進んでいく。 If the measured room temperature [TR] in the above step is larger than the target room temperature [TRV] - correction value [α 1 ], or if the air blowing temperature [TD] is not the maximum in the above step, the cooling mode should be continued in both cases. In this state, the counter for VAV switching is reset to zero, and the control system of the present invention is performed during cooling performed in a step-by-step manner.
以上述べたように、本発明の空調機の送風温度
制御方法は、可変風量ユニツト〔VAV〕使用の
空調設備において、冷房時VAVが適正開度で制
御が行われている場合に、この状態が一定期間継
続することを条件に送風設定温度を下げ、送風機
の回転数を減少させて省エネルギー化を図るもの
である。しかもこの省エネルギー制御を行うに際
し、適宜居住性を充分確保できるものである。 As described above, the air temperature control method for an air conditioner according to the present invention is applicable to air conditioning equipment that uses a variable air volume unit (VAV), and when the VAV is controlled at an appropriate opening during cooling, this condition can be The purpose is to lower the set temperature of the air blower and reduce the number of rotations of the blower under the condition that the blower continues for a certain period of time, thereby saving energy. Furthermore, when carrying out this energy saving control, it is possible to ensure sufficient livability as appropriate.
第１図はVAV使用の空調設備の一般例を示す
説明図、第２図は本発明方法の実施例を示すフロ
ーチヤート、第３図は室温と送風温度の関係を示
す図である。
１……空調機、１ａ……温水コイル、１ｂ……
冷水コイル、１ｃ……送風機、２……送風ダク
ト、３，３′……VAV、４……外気の取入れダク
ト、５……室内空気の取入れダクト、６……温水
配管、７……冷水配管、８，９，９′，１４，１
４′……温度センサー、１０，１１……バルブ、
１２，１５……コントローラ、１３……切換えス
イツチ。
FIG. 1 is an explanatory diagram showing a general example of air conditioning equipment using VAV, FIG. 2 is a flowchart showing an embodiment of the method of the present invention, and FIG. 3 is a diagram showing the relationship between room temperature and air blowing temperature. 1... Air conditioner, 1a... Hot water coil, 1b...
Cold water coil, 1c...Blower, 2...Blower duct, 3, 3'...VAV, 4...Outside air intake duct, 5...Indoor air intake duct, 6...Hot water piping, 7...Cold water piping , 8, 9, 9', 14, 1
4'...Temperature sensor, 10,11...Valve,
12, 15... Controller, 13... Changeover switch.
Claims (1)
冷暖房兼用の空調機からの送風ダクト末端に、温
度センサーに接続されたコントローラにより制御
される可変風量ユニツト〔VAV〕を設けた空調
設備において、冷房時VAVが適正開度で制御さ
れて室温が適正範囲内にある状態が一定時間継続
した場合に、設定送風温度を下げ、この温度を得
るように冷水コイルを制御して室温を下げ、かつ
VAVを少し閉じるとともに、ダクト内の圧力セ
ンサーの出力をもとにフアン動力を軽減して省エ
ネルギー化を図ることを特徴とした空調機の送風
温度制御方法。[Scope of Claims] 1. An air conditioner in which a variable air volume unit (VAV) controlled by a controller connected to a temperature sensor is installed at the end of the air duct from an air conditioner for heating and cooling that is equipped with a hot water coil, a cold water coil, and a blower. In equipment, if the VAV during cooling is controlled at the appropriate opening degree and the room temperature remains within the appropriate range for a certain period of time, the set air blowing temperature is lowered and the chilled water coil is controlled to obtain this temperature to lower the room temperature. lower, and
A method for controlling the air temperature of an air conditioner, which is characterized by closing the VAV slightly and reducing fan power based on the output of a pressure sensor inside the duct to save energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58168920A JPS6060446A (en) | 1983-09-13 | 1983-09-13 | Blast temperature controlling system of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58168920A JPS6060446A (en) | 1983-09-13 | 1983-09-13 | Blast temperature controlling system of air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6060446A JPS6060446A (en) | 1985-04-08 |
| JPH0136016B2 true JPH0136016B2 (en) | 1989-07-28 |
Family
ID=15877002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58168920A Granted JPS6060446A (en) | 1983-09-13 | 1983-09-13 | Blast temperature controlling system of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6060446A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR900006505B1 (en) * | 1985-08-22 | 1990-09-03 | 미쓰비시전기 주식회사 | Air-conditioner |
| JPS62194159A (en) * | 1986-02-20 | 1987-08-26 | Mitsubishi Electric Corp | Duct type air-conditioning machine |
| JP6239983B2 (en) * | 2014-01-10 | 2017-11-29 | アズビル株式会社 | Air conditioning system and air conditioning control method |
-
1983
- 1983-09-13 JP JP58168920A patent/JPS6060446A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6060446A (en) | 1985-04-08 |
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