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JP4642402B2 - Temperature control system for air conditioning equipment - Google Patents
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JP4642402B2 - Temperature control system for air conditioning equipment - Google Patents

Temperature control system for air conditioning equipment Download PDF

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JP4642402B2
JP4642402B2 JP2004218766A JP2004218766A JP4642402B2 JP 4642402 B2 JP4642402 B2 JP 4642402B2 JP 2004218766 A JP2004218766 A JP 2004218766A JP 2004218766 A JP2004218766 A JP 2004218766A JP 4642402 B2 JP4642402 B2 JP 4642402B2
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晃一 田鍋
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株式会社環境設備計画
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Description

本発明は、ビル等に設置の空調設備の温度制御方式に関する。   The present invention relates to a temperature control method for air conditioning equipment installed in a building or the like.

従来、ビル等に設置の空調設備は、図3に示すように、同じ容量の熱交換器50A〜50Fを複数台、並列接続して、温度制御を行っている。
具体的に説明すると、最大負荷に対応可能に、同じ容量の熱交換器50A〜50Fを複数台設置してある。そして、これらの熱交換器50A〜50Fはフィン付きチューブ形式であり、胴体内を熱源装置1からの熱媒体(暖房時には熱水又は温水、冷房時には冷水)が通って、熱交換器に付設のフィンを介して空気と熱交換をする。
Conventionally, as shown in FIG. 3, an air conditioning facility installed in a building or the like performs temperature control by connecting a plurality of heat exchangers 50 </ b> A to 50 </ b> F having the same capacity in parallel.
More specifically, a plurality of heat exchangers 50A to 50F having the same capacity are installed so as to be able to cope with the maximum load. These heat exchangers 50A to 50F are in the form of tubes with fins, and the heat medium from the heat source device 1 (hot water or hot water at the time of heating, cold water at the time of cooling) passes through the body, and is attached to the heat exchanger. Heat exchange with air through fins.

そのために、各熱交換器50A〜50Fの入口側には、熱源装置1で昇温又は冷却された熱媒体を、入口弁52を介して、同じ流量となるように配管が施工してある一方、各熱交換器の出口には集合配管55が設置してあり、空気と熱交換された熱媒体を熱源装置1に戻す戻り配管55aが施工してある。
そして、その熱媒体はタンク54に貯留された後に熱媒体ポンプ56で熱源装置に送液される。
Therefore, on the inlet side of each of the heat exchangers 50 </ b> A to 50 </ b> F, the heat medium heated or cooled by the heat source device 1 is piped through the inlet valve 52 so as to have the same flow rate. A collecting pipe 55 is installed at the outlet of each heat exchanger, and a return pipe 55a for returning the heat medium exchanged with air to the heat source device 1 is provided.
The heat medium is stored in the tank 54 and then sent to the heat source device by the heat medium pump 56.

一方、前記熱交換器50A〜50Fはカバー58で覆われ、カバー58の前後には戻りダクト60と排出ダクト61が設けてある。
そして、ファン59からの空気は、熱交換器50A〜50Fと熱交換され、排出ダクト61によって各室63に搬送され、各室63からの空気は戻りダクト60を介して、前記ファン59の入口側に戻されて循環路が形成してある。
又、熱交換器の出口の排出ダクト61には温度検出器64が設置してあり、温度制御装置65によって、その空気温度Tが設定温度Tsになるように、入口弁52の開度によって熱媒体の流量制御を行っている。
尚、前記構成の空調設備の温度制御方式は、よく知られたものであるので文献を提示しない。
On the other hand, the heat exchangers 50 </ b> A to 50 </ b> F are covered with a cover 58, and a return duct 60 and a discharge duct 61 are provided before and after the cover 58.
The air from the fan 59 is heat-exchanged with the heat exchangers 50 </ b> A to 50 </ b> F and is conveyed to each chamber 63 by the discharge duct 61, and the air from each chamber 63 enters the inlet of the fan 59 through the return duct 60. Returned to the side, a circulation path is formed.
Further, a temperature detector 64 is installed in the discharge duct 61 at the outlet of the heat exchanger, and the temperature control device 65 heats the air according to the opening degree of the inlet valve 52 so that the air temperature T becomes the set temperature Ts. The flow rate of the medium is controlled.
In addition, since the temperature control system of the air-conditioning equipment of the said structure is a well-known thing, literature is not presented.

前記空調設備の温度制御方式において、熱負荷が減少すると、熱媒体を送水する熱媒体ポンプ56の循環量が減少するので、熱媒体ポンプ56の動力は減少するが、熱交換器50A〜50F内の熱媒体の流速が減少するので、熱交換率が悪化するという課題がある。
そこで、本発明は、かかる不都合である熱交換率が減少せず、且つ、消費電力の減少を図ることができる空調設備の温度制御方式を提供する。
In the temperature control system of the air conditioning equipment, when the heat load is reduced, the circulation amount of the heat medium pump 56 for supplying the heat medium is reduced, so that the power of the heat medium pump 56 is reduced, but the heat exchangers 50A to 50F However, there is a problem that the heat exchange rate is deteriorated.
Therefore, the present invention provides a temperature control method for air conditioning equipment that does not reduce the disadvantageous heat exchange rate and can reduce power consumption.

請求項1の空調設備の温度制御方式は、熱源装置からの熱媒体を熱媒体ポンプを介して、並列に複数台配置の熱交換器に送液し、前記熱交換器と熱交換するファンで送気して各室の温度調整を行う空調設備に適用するものであり、熱交換器に送液する熱媒体を乱流域で流すものである。
そして、熱交換器には、熱媒体を制御する熱媒体制御弁を設置するものと設置しないものがあり、熱媒体制御弁を設置しない熱交換器は、最小負荷熱量Qmのとき、熱媒体制御弁による流量制御をしなくても、熱媒体は乱流域で流れるので、熱効率の向上を図ることができる。
又、請求項2の空調設備の温度制御方式は、2台以上の熱交換器に熱媒体の流量を制御する熱媒体制御弁を設置したときに円滑な制御を可能にする。
The temperature control system of the air conditioning equipment according to claim 1 is a fan that sends a heat medium from a heat source device to a plurality of heat exchangers arranged in parallel via a heat medium pump and exchanges heat with the heat exchanger. It is applied to air conditioning equipment that supplies air and adjusts the temperature of each room, and heat medium that is sent to a heat exchanger is made to flow in a turbulent flow region.
And, there are heat exchangers that do not have a heat medium control valve that controls the heat medium, and heat exchangers that do not have a heat medium control valve. Even if the flow rate is not controlled by the valve, the heat medium flows in the turbulent region, so that the thermal efficiency can be improved.
Further, the temperature control system for the air conditioning equipment according to claim 2 enables smooth control when a heat medium control valve for controlling the flow rate of the heat medium is installed in two or more heat exchangers.

請求項1の空調設備の温度制御方式は、最小負荷熱量Qmのとき、熱媒体制御弁による流量制御をしなくても、乱流域で流れるので熱効率の向上を図ることができる。
又、請求項2の空調設備の温度制御方式は、2台以上の熱交換器に熱媒体の流量を制御する熱媒体制御弁を設置したときに円滑な制御を可能にする。
The temperature control system for the air conditioning equipment according to claim 1 can improve the thermal efficiency because it flows in the turbulent flow region without the flow rate control by the heat medium control valve when the minimum load heat quantity Qm.
Further, the temperature control system for the air conditioning equipment according to claim 2 enables smooth control when a heat medium control valve for controlling the flow rate of the heat medium is installed in two or more heat exchangers.

図1は、本発明の概念図であり、複数の熱交換器10A〜10Fが並列に配置してある。この熱交換器10A〜10Fはフィン付きチューブ形式であり、胴体内を熱源装置1からの熱媒体(暖房時には熱水又は温水、冷房時には冷水)が通り、フィンを介して空気との熱交換をする。
尚、前記熱交換器の台数は、最大負荷熱量QTに対し、熱交換器が設置可能な大きさ及び台数から、1台の熱交換器の伝熱面積S、熱媒体と空気との温度差δt、総括伝熱係数U、熱媒体の流量、熱交換器内を流れる流速等の条件から選定する。
FIG. 1 is a conceptual diagram of the present invention, in which a plurality of heat exchangers 10A to 10F are arranged in parallel. These heat exchangers 10A to 10F are in the form of tubes with fins, and the heat medium from the heat source device 1 (hot water or hot water at the time of heating, cold water at the time of cooling) passes through the fuselage, and exchanges heat with air through the fins. To do.
It should be noted that the number of heat exchangers depends on the heat transfer area S of one heat exchanger, the temperature difference between the heat medium and air, based on the size and number of heat exchangers that can be installed with respect to the maximum load heat quantity QT. It selects from conditions, such as (delta) t, the overall heat transfer coefficient U, the flow volume of a heat medium, and the flow velocity which flows through the inside of a heat exchanger.

尚、本発明では、前記条件を考慮し、更に、最小負荷熱量Qmに対して、熱交換器の胴体を流れる熱媒体が乱流となるように選定すると共に、最小負荷熱量Qm以上のときも、各熱交換器を流れる熱媒体が、原則として乱流となるように選定する。
この乱流域で熱媒体を流すと、熱交換器の胴体と外側の空気との熱伝達効率が上昇するためである。
In the present invention, the above conditions are taken into consideration, and further, the heat medium flowing through the body of the heat exchanger is selected to be turbulent with respect to the minimum load heat quantity Qm. In principle, the heat medium flowing through each heat exchanger is selected to be turbulent.
This is because when the heat medium is flowed in this turbulent flow region, the heat transfer efficiency between the body of the heat exchanger and the outside air increases.

そこで、一例として、図1に示す熱交換器10A〜10Bの2台が、最小熱負荷Qmに対応して乱流で胴体内を流れ、最小熱負荷Qm以上の負荷のときであっても、熱交換器10C〜10D、熱交換器10E〜10Fにおいて、熱媒体は乱流で流れるように選定してある。
前記熱交換器10A〜10Bの入口には、熱媒体入口弁を設置せず、直接、熱媒体ポンプ15から熱媒体を受入れるが、熱交換器10C、10Dは熱媒体制御弁11A、熱交換器10E、10Fは熱媒体制御弁11Bによって、流量制御される。
Therefore, as an example, even when the two heat exchangers 10A to 10B shown in FIG. 1 flow through the fuselage in a turbulent flow corresponding to the minimum heat load Qm, In the heat exchangers 10C to 10D and the heat exchangers 10E to 10F, the heat medium is selected so as to flow in a turbulent flow.
A heat medium inlet valve is not installed at the inlets of the heat exchangers 10A to 10B, and the heat medium is directly received from the heat medium pump 15, but the heat exchangers 10C and 10D are the heat medium control valve 11A and the heat exchanger. The flow rates of 10E and 10F are controlled by the heat medium control valve 11B.

また、前記熱媒体は、タンク8に貯留され、熱媒体ポンプ15を介して熱源装置1に送られて、昇温又は冷却された後に、前記熱交換器10A〜10Bは直接に、前記熱交換器10C、10Dは熱媒体制御弁11Aを介して、熱交換器10E、10Fは熱媒体制御弁11Bを介して胴体に送られ、フィンを介して空気と熱交換される。
そして、前記各熱交換器10A〜10Fの胴体側の出口は、集合配管7に接続してあり、その集合配管7はタンク8に貯留された後に、熱媒体ポンプ15で前記熱源装置1に送られる。
尚、前記熱源装置1は、冷房のときには冷水を作り、暖房のときには温水又は熱水を作り、熱媒体ポンプを介して前記分配管に送水する。
The heat medium is stored in the tank 8, sent to the heat source device 1 via the heat medium pump 15, and after being heated or cooled, the heat exchangers 10 </ b> A to 10 </ b> B directly perform the heat exchange. The chambers 10C and 10D are sent to the body via the heat medium control valve 11A, and the heat exchangers 10E and 10F are sent to the body via the heat medium control valve 11B, and heat exchange with air is performed via the fins.
The body-side outlets of the heat exchangers 10A to 10F are connected to the collective pipe 7, and the collective pipe 7 is stored in the tank 8, and then sent to the heat source device 1 by the heat medium pump 15. It is done.
The heat source device 1 produces cold water during cooling, produces hot water or hot water during heating, and sends the water to the distribution pipe via a heat medium pump.

一方、前記熱交換器10A〜10Fはカバー18で覆われ、カバー18の前後には戻りダクト20と排出ダクト21が設けてある。
そして、ファン19からの空気は、熱交換器10A〜10Fで熱交換され、排出ダクト21によって各室23に搬送され、各室23からの空気は戻りダクト20を介して、前記ファン19の入口側に戻される循環路が形成してある。
又、熱交換器の出口の排出ダクト21には、温度検出器24が設置してあり、温度制御装置25によって、その空気温度Tが設定温度Tsになるように、後記で詳述する制御方式によって、熱媒体制御弁11A、11Bの開度調節によって熱媒体の流量制御を行っている。尚、熱媒体制御弁11A、11Bは、「全開、全閉」の2値制御弁とする。
On the other hand, the heat exchangers 10 </ b> A to 10 </ b> F are covered with a cover 18, and a return duct 20 and a discharge duct 21 are provided before and after the cover 18.
The air from the fan 19 is heat-exchanged by the heat exchangers 10A to 10F, and is conveyed to each chamber 23 by the discharge duct 21, and the air from each chamber 23 is passed through the return duct 20 to the inlet of the fan 19. A circulation path returning to the side is formed.
Further, a temperature detector 24 is installed in the discharge duct 21 at the outlet of the heat exchanger, and a control method described in detail later so that the air temperature T becomes a set temperature Ts by the temperature control device 25. Thus, the flow rate of the heat medium is controlled by adjusting the opening degree of the heat medium control valves 11A and 11B. The heat medium control valves 11A and 11B are “full open, fully closed” binary control valves.

次に、前記構成の空調設備を使用して各室23を暖房する温度制御方式について説明する。
先ず、ファン19を起動して、所定量の風量を流すと、この空気は熱交換器10A〜10Fのフィンと熱交換されて、排出ダクト21を介して各室23に送風され、各室23からの空気は戻りダクト20を介してファン19に戻される。
尚、各室には風量設定器が設置してあり、予め設定値に対する風量は既知である。そこで、ダクトの摩擦損失を考慮して、前記空気量は、各室に設置の前記風量設定器からの設定値を加重平均して、風量を算出し、その値になるようにダンパー30を制御する。
又、熱媒体ポンプ15を起動するが、この熱媒体ポンプ15の流量は、各熱交換器10A〜10Fに流れる熱媒体が、乱流域を確保できるものである。
そして、熱媒体ポンプ15の起動時には、何等、温度制御を行っていないので、熱媒体制御弁11A、11Bは「閉」であり、熱媒体は熱交換器10A、10Bにだけ流れ、それらの熱交換器10A、10Bにおける熱媒体は乱流域で流れる。
Next, a temperature control method for heating each room 23 using the air conditioning equipment having the above configuration will be described.
First, when the fan 19 is started and a predetermined amount of air flows, this air is heat-exchanged with the fins of the heat exchangers 10A to 10F, and is blown into the chambers 23 through the discharge ducts 21. Air is returned to the fan 19 through the return duct 20.
Each room is provided with an air volume setting device, and the air volume with respect to the set value is known in advance. Therefore, considering the friction loss of the duct, the air volume is calculated by averaging the set values from the air volume setting device installed in each room to calculate the air volume, and the damper 30 is controlled to be the value. To do.
The heat medium pump 15 is started, and the flow rate of the heat medium pump 15 is such that the heat medium flowing through the heat exchangers 10A to 10F can secure a turbulent flow region.
Since the temperature control is not performed at the time of starting the heat medium pump 15, the heat medium control valves 11A and 11B are “closed”, and the heat medium flows only to the heat exchangers 10A and 10B. The heat medium in the exchangers 10A and 10B flows in a turbulent region.

次に、温度制御について、図2に示すフローに従って説明する。
先ず、F(フラグ)、G(フタグ)を0の初期化をする。このF、Gは、後記で詳述するが、タイマーが起動しているか否かの判断に使用する。
熱交換器の出口の検出温度Tが、設定温度Tsより低いか否かを判断し(S1)、低い場合には、Gを初期化し(S2)、Fが「1」か否かを判断する(S3)。前記「G」は、前記ステップ1において、「NO」のときのタイマーが起動か否かを示すフラグであり、このGを初期化して、タイマーカウント中でないことを示す。
又、このFが「1」のときには、熱媒体制御弁11Aが「開」になってからの時間を計測するタイマーがカウント中であることを示す。
Next, temperature control will be described according to the flow shown in FIG.
First, F (flag) and G (ftag) are initialized to zero. As will be described in detail later, F and G are used to determine whether or not the timer is activated.
It is determined whether or not the detected temperature T at the outlet of the heat exchanger is lower than the set temperature Ts (S1). If it is lower, G is initialized (S2) and it is determined whether or not F is “1”. (S3). The “G” is a flag indicating whether or not the timer at the time of “NO” in the step 1 is activated. This G is initialized to indicate that the timer is not being counted.
When F is “1”, it indicates that the timer that measures the time from when the heat medium control valve 11A is “open” is counting.

そこで、Fが「0」のときには、熱媒体制御弁11Aが「開」であるか否かを判断し(S4)、熱媒体制御弁11Aが「閉」であるときには、熱媒体制御弁11Aを「開」にすると共に、Fを「1」にセットすると共に、Tiの初期化をする(S5)。
これによって、熱交換器10A、10B、10C〜10Dが使用されるが、熱媒体量は各熱交換器において乱流域で流れ、伝熱面積が増大するので、空気との交換熱量が増加して、空気の昇温を図ることができる。
Therefore, when F is “0”, it is determined whether or not the heat medium control valve 11A is “open” (S4). When the heat medium control valve 11A is “closed”, the heat medium control valve 11A is turned on. “Open” is set, F is set to “1”, and Ti is initialized (S5).
As a result, the heat exchangers 10A, 10B, 10C to 10D are used, but the amount of heat medium flows in the turbulent flow region in each heat exchanger, and the heat transfer area increases, so the amount of heat exchanged with air increases. The temperature of the air can be increased.

前記ステップ4において、熱媒体制御弁11Aが「開」であるときには、昇温するために、熱媒体制御弁11Bを「開」にする(S12)。これによって、熱媒体制御弁11A、11Bが共に開き、昇温される。
前記ステップ3で、F=1のときには、タイマTiに1を加算し(S10)、予め設定戯れた時間Txになったか否かを判断する(S11)。そして、タイマTiが時間Tx以上になったとき、熱媒体制御弁11Bを「開」にする(S12)。
前記この時間Txは、熱媒体制御弁11Aが「開」になった後に、直ぐに、熱媒体制御弁11Bを「開」にすることを防ぐための時間である。即ち、熱媒体制御弁11Aが「開」になっても、直ちに、昇温の効果が表れず、時間Tx、経過後に昇温が安定するので、その時間Txが経過しても、なお、検出温度Tが設定温度Tsより低い場合に、熱媒体制御弁11Bを「開」にする制御方式である。
In step 4, when the heat medium control valve 11A is “open”, the heat medium control valve 11B is “open” in order to raise the temperature (S12). As a result, the heat medium control valves 11A and 11B are both opened to raise the temperature.
In step 3, when F = 1, 1 is added to the timer Ti (S10), and it is determined whether or not a pre-set time Tx is reached (S11). When the timer Ti becomes equal to or greater than the time Tx, the heat medium control valve 11B is opened (S12).
The time Tx is a time for preventing the heat medium control valve 11B from being “open” immediately after the heat medium control valve 11A is “open”. That is, even when the heat medium control valve 11A is “open”, the effect of the temperature rise does not appear immediately, and the temperature rise stabilizes after the time Tx, so that even if the time Tx elapses, the detection still occurs. This is a control method for opening the heat medium control valve 11B when the temperature T is lower than the set temperature Ts.

以上によって、空気量は各室の風量設定器からの値によって設定し、何れの熱交換器を使用するかは、検出温度Tと設定温度Tsを比較して行うが、先ず、熱媒体制御弁11Aが「開」になった後においては、熱媒体制御弁11Aによる昇温効果が発揮する時間Tx、経過後に、熱媒体制御弁11Bを「開」にするものである。
即ち、もし、この時間Txを採用しないと、熱媒体制御弁11Aを「開」にした後に、直ちに、熱媒体制御弁11Bも「開」にする制御となり、熱媒体制御弁11Aと熱媒体制御弁11Bを区別して制御する意味がない。
As described above, the air amount is set according to the value from the air volume setting device in each chamber, and which heat exchanger is used is determined by comparing the detected temperature T with the set temperature Ts. First, the heat medium control valve After 11A is "opened", the heat medium control valve 11B is "opened" after the time Tx when the temperature raising effect by the heat medium control valve 11A is exhibited.
That is, if this time Tx is not adopted, the heat medium control valve 11B is immediately opened after the heat medium control valve 11A is opened, and the heat medium control valve 11A and the heat medium control are controlled. There is no point in distinguishing and controlling the valve 11B.

一方、熱交換器の出口の検出温度Tが設定温度Tsより高い場合には、熱媒体制御弁11A、11Bを「閉」にする必要がある。
そこで、前記ステップS1で、「NO」となっときには、Fを初期化し(S20)、Gが「1」か否かを判断する(S21)。前記「F」は、前記ステップ1において、「YES」のときのタイマーが起動か否かを示すフラグであり、このFを初期化して、タイマーカウント中でないことを示す。
又、このGが「1」のときには、熱媒体制御弁11Bが「閉」になってからの時間を計測するタイマーがカウント中であることを示す。
On the other hand, when the detected temperature T at the outlet of the heat exchanger is higher than the set temperature Ts, it is necessary to close the heat medium control valves 11A and 11B.
Therefore, if “NO” in the step S1, F is initialized (S20), and it is determined whether G is “1” (S21). The “F” is a flag indicating whether or not the timer at the time of “YES” is started in the step 1, and this F is initialized to indicate that the timer is not being counted.
When G is “1”, it indicates that the timer that measures the time since the heat medium control valve 11B is “closed” is counting.

そこで、Gが「0」のときには、熱媒体制御弁11Bが「開」であるか否かを判断し(S22)、熱媒体制御弁11Bが「開」であるときには、熱媒体制御弁11Bを「閉」にすると共に、Gを「1」にセットすると共に、Tiの初期化をする(S23)。
又、前記ステップ22において、熱媒体制御弁11Bが「閉」であるときには、熱媒体制御弁11Aを「閉」にする(S27)。
以上によって、検出温度Tが、設定温度Tsより高いときには、熱媒体制御弁11Bを介して熱交換器10E、10Fを閉にし、更に温度が高いときには熱媒体制御弁11Aが熱交換器10C、10Dを閉にする。
Therefore, when G is “0”, it is determined whether or not the heat medium control valve 11B is “open” (S22). When the heat medium control valve 11B is “open”, the heat medium control valve 11B is turned on. While “closed”, G is set to “1”, and Ti is initialized (S23).
If the heat medium control valve 11B is “closed” in step 22, the heat medium control valve 11A is “closed” (S27).
As described above, when the detected temperature T is higher than the set temperature Ts, the heat exchangers 10E and 10F are closed via the heat medium control valve 11B, and when the temperature is higher, the heat medium control valve 11A is turned into the heat exchangers 10C and 10D. Is closed.

又、前記ステップ21で、G=1のときには、タイマTiに1を加算し(S25)、予め設定戯れた時間TYになったか否かを判断する(S26)。そして、タイマTiが時間TY以上になったとき、熱媒体制御弁11Aを「閉」にする(S27)。
前記この時間TYは、熱媒体制御弁11Bが「閉」になった後に、直ぐに、熱媒体制御弁11Aを「閉」にすることを防ぐための時間である。
以上によって、熱交換器の出口の検出温度Tが、設定温度Tsより高い場合には、熱媒体制御弁11Bを閉にし、更に、温度が高いときには、熱媒体制御弁11Aを「閉」にする制御方式である。
In step 21, when G = 1, 1 is added to the timer Ti (S25), and it is determined whether or not a predetermined time TY has been reached (S26). When the timer Ti reaches the time TY or more, the heat medium control valve 11A is “closed” (S27).
The time TY is a time for preventing the heat medium control valve 11A from being “closed” immediately after the heat medium control valve 11B is “closed”.
As described above, when the detected temperature T at the outlet of the heat exchanger is higher than the set temperature Ts, the heat medium control valve 11B is closed, and when the temperature is higher, the heat medium control valve 11A is closed. Control method.

以上のように、熱負荷量を考慮して、各熱交換器を流れる熱媒体は、原則として乱流域で流れるように台数、伝熱面積等を考慮して選定してあるので、熱伝達効率の向上を図ることができると共に、熱媒体制御弁11A、11Bを制御することによって、動力源の消費電力の減少を図ることができる。
尚、前記熱媒体制御弁11A、11Bは、「ON、OFF」の2値制御であるが、適宜のバルブ開度にできる連続式制御弁で制御してもよいし、2台の熱交換器に対して1台の熱媒体制御弁の構成であるが、1台の熱交換器に対して1台の熱媒体制御弁、或は、1台の熱交換器に対して3台以上の熱媒体制御弁の構成であってもよい。
As described above, considering the heat load, the heat medium flowing through each heat exchanger is selected in consideration of the number of units, heat transfer area, etc. so that it flows in the turbulent flow region in principle. The power consumption of the power source can be reduced by controlling the heat medium control valves 11A and 11B.
The heat medium control valves 11A and 11B are “ON, OFF” binary control, but may be controlled by a continuous control valve that can have an appropriate valve opening, or two heat exchangers. 1 heat medium control valve for one heat exchanger, but one heat medium control valve for one heat exchanger, or three or more heat for one heat exchanger. The configuration may be a medium control valve.

又、前記は暖房制御について記載したが、冷房の場合には、熱源装置1を冷水作成にすると共に、図3のステップ1における不等号を逆となる条件で実施すればよい。   In the above description, the heating control is described. However, in the case of cooling, the heat source device 1 is made of cold water, and the inequality sign in step 1 of FIG.

本願発明の空調設備の概念図である。It is a conceptual diagram of the air-conditioning equipment of this invention. 制御フロー図である。It is a control flowchart. 従来の空調設備の概念図である。It is a conceptual diagram of the conventional air conditioning equipment.

符号の説明Explanation of symbols

1 熱源装置
10A〜10F 熱交換器
11A、11B 熱媒体制御弁
15 熱媒体ポンプ

1 Heat source devices 10A to 10F Heat exchangers 11A and 11B Heat medium control valve 15 Heat medium pump

Claims (2)

熱源装置からの熱媒体を熱媒体ポンプを介して、並列に複数台配置の熱交換器に送液し、前記熱交換器と熱交換するファンで送気して各室の温度調整を行う空調設備の温度制御方式であって、
前記各熱交換器に送液する熱媒体を乱流域で流し、
熱交換器に流れる熱媒体を制御する熱媒体制御弁を設置する熱交換器と設置しない熱交換器の組合せであり、
熱媒体制御弁を設置しない熱交換器は、最小負荷熱量に対応するように選定することを特徴とする空調設備の温度制御方式。
Air conditioning in which the heat medium from the heat source device is sent to a plurality of heat exchangers arranged in parallel via a heat medium pump, and the temperature of each chamber is adjusted by sending air with a fan that exchanges heat with the heat exchanger. A temperature control system for equipment,
Flowing the heat medium sent to each heat exchanger in a turbulent region,
It is a combination of a heat exchanger that installs a heat medium control valve that controls the heat medium that flows in the heat exchanger and a heat exchanger that does not install,
A heat exchanger that does not have a heat medium control valve is selected so as to correspond to the minimum load heat quantity .
2台以上の熱交換器に熱媒体の流量を制御する熱媒体制御弁を設置し、一方の熱媒体制御弁を開又は閉状態にした後において、他方の熱媒体制御弁は予め設定された時間を経過しないと開又は閉状態にしないように制御することを特徴とする請求項1の空調設備の温度制御方式。   After installing a heat medium control valve that controls the flow rate of the heat medium in two or more heat exchangers and opening one heat medium control valve, the other heat medium control valve is set in advance. 2. The temperature control system for an air conditioner according to claim 1, wherein the temperature control system is controlled so as not to be in an open state or a closed state unless a time elapses.
JP2004218766A 2004-07-27 2004-07-27 Temperature control system for air conditioning equipment Expired - Fee Related JP4642402B2 (en)

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