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JP7614065B2 - Hybrid Air Conditioning System - Google Patents
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JP7614065B2 - Hybrid Air Conditioning System - Google Patents

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JP7614065B2
JP7614065B2 JP2021158583A JP2021158583A JP7614065B2 JP 7614065 B2 JP7614065 B2 JP 7614065B2 JP 2021158583 A JP2021158583 A JP 2021158583A JP 2021158583 A JP2021158583 A JP 2021158583A JP 7614065 B2 JP7614065 B2 JP 7614065B2
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博司 迫
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description

本発明は、空冷ヒートポンプ方式の空調機からの対流による冷暖房と、天井面や床面からの輻射冷暖房を併用した所謂ハイブリッド空調システムを利用したハイブリッド空調システムの制御方法に関する。 The present invention relates to a method for controlling a hybrid air conditioning system that uses a so-called hybrid air conditioning system that combines cooling and heating by convection from an air-cooling heat pump type air conditioner with radiant heating and cooling from a ceiling or floor surface.

建物を対象とする空調システムとしては、種々の方式が採用されており、例えば、大規模な冷凍機やボイラ、冷温水発生機等の中央熱源機によって調製した冷水や温水を建物全体に分配供給するセントラル方式によるものがある。また、比較的小規模の空調機を建物内の各所に分散配置し、これらを個々に制御させる方式がある。 Various types of air conditioning systems are used for buildings, including a central system in which cold and hot water prepared by a central heat source such as a large-scale chiller, boiler, or hot and cold water generator is distributed throughout the building. There is also a system in which relatively small air conditioners are distributed throughout the building and controlled individually.

空冷ヒートポンプパッケージ方式の空調機(エアコン)においては、室外機と室内機との間で冷媒を循環させることにより、室内機から室内に冷風または温風を送風する構成となっている。 In an air-cooled heat pump package type air conditioner, the refrigerant is circulated between the outdoor unit and the indoor unit, and the indoor unit blows cold or hot air into the room.

一方、特許文献1に示されるように、天井、床、壁に設置したパネルに対して冷水や温水を供給することによって放射冷暖房を行う装置が提案されている。 On the other hand, as shown in Patent Document 1, a device has been proposed that performs radiant heating and cooling by supplying cold or hot water to panels installed on the ceiling, floor, and walls.

また、特許文献2に示されるように、空冷ヒートポンプ方式と、輻射方式を併用したハイブリッド空調システムが提案されている。 Also, as shown in Patent Document 2, a hybrid air conditioning system has been proposed that combines an air-cooled heat pump system and a radiant system.

特開2014-40951号公報JP 2014-40951 A 特開2014-152971号公報JP 2014-152971 A

しかしながら、ハイブリッド式の空調システムにおいては、放射パネルを用いた放射空調は空調立ち上がり時間(空調開始後、室内温度が設定温度に達する時間)が長くなるとともに、室内の垂直温度分布が暖房時に悪くなる傾向がある。一方、空調屋内機を用いた対流空調は、空調立ち上がり時間が短いメリットや温風が床近傍に届くことで垂直温度分布が比較的良好であるが、放射空調に比べて気流感(ドラフト感)や送風時の騒音などのデメリットがある。このため、放射空調と対流空調を適切に制御することが困難であった。 However, in hybrid air conditioning systems, radiant air conditioning using radiant panels requires a longer air conditioning start-up time (the time it takes for the indoor temperature to reach the set temperature after air conditioning is started) and the vertical temperature distribution in the room tends to be poorer when heating. On the other hand, convection air conditioning using indoor air conditioning units has the advantage of a short air conditioning start-up time and relatively good vertical temperature distribution as warm air reaches the area near the floor, but has disadvantages such as a feeling of air current (draft feeling) and noise when blowing air compared to radiant air conditioning. This has made it difficult to properly control radiant air conditioning and convection air conditioning.

また、特許文献2に開示された発明によると、冷温水ユニット(放射空調)の定格能力を十分に発揮できないという問題がある。 In addition, the invention disclosed in Patent Document 2 has the problem that the rated capacity of the hot and cold water unit (radiant air conditioning) cannot be fully utilized.

本発明は上記のような状況に鑑みてなされたものであり、簡素な構造でありながら冷温水ユニット(放射空調)の定格能力を十分に発揮可能なハイブリッド空調システムを利用したものである。 The present invention has been made in consideration of the above-mentioned circumstances, and utilizes a hybrid air conditioning system that has a simple structure yet is able to fully utilize the rated capacity of a hot and cold water unit (radiant air conditioning).

本発明の目的は、ハイブリッド空調システムによる室温制御を最適化できる制御方法を提供することにある。 An object of the present invention is to provide a control method capable of optimizing room temperature control by a hybrid air conditioning system.

本制御方法が利用されるハイブリッド空調システム)
上記課題を解決する本発明は、冷風又は温風及び、冷水又は温水の両方を利用したハイブリッド空調システムであって、ヒートポンプ屋外機と;前記ヒートポンプ屋外機との間で冷媒を循環させることにより冷風または温風を調製する室内空調機と;前記冷媒を循環させる冷媒配管に連結され、当該冷媒との熱交換により冷水または温水を調製する冷媒熱交換器と;冷温水配管を介して前記冷媒熱交換器により供給される冷水又は温水によって輻射冷暖房を行う冷温水式放射パネルと;1次側が前記冷温水配管を介して前記冷媒熱交換器に連結され、2次側が前記冷温水配管を介して前記冷温水式放射パネルに連結され、前記1次側と2次側の流量を可変とする直接熱交換型密閉タンクと;前記直接熱交換型密閉タンクに連結され、前記冷水または温水の熱膨張を吸収するための膨張タンクと;前記冷温水配管を介して前記直接熱交換型密閉タンクの前記2次側に連結され、前記冷温水式放射パネルへの送水温度を調整可能な比例三方弁と、を備えている。
(Hybrid air conditioning system in which the present control method is used )
The present invention, which solves the above problems, is a hybrid air conditioning system that uses both cold or hot air and cold or hot water, and includes: a heat pump outdoor unit; an indoor air conditioner that prepares cold or hot air by circulating a refrigerant between the heat pump outdoor unit; a refrigerant heat exchanger that is connected to a refrigerant pipe that circulates the refrigerant and prepares cold water or hot water by heat exchange with the refrigerant; a cold/hot water type radiant panel that performs radiant heating and cooling using cold water or hot water supplied by the refrigerant heat exchanger via a cold/hot water pipe; a direct heat exchange type sealed tank whose primary side is connected to the refrigerant heat exchanger via the cold/hot water pipe and whose secondary side is connected to the cold/hot water type radiant panel via the cold/hot water pipe, and which allows the flow rate of the primary side and the secondary side to be variable; an expansion tank that is connected to the direct heat exchange type sealed tank and absorbs thermal expansion of the cold water or hot water; and a proportional three-way valve that is connected to the secondary side of the direct heat exchange type sealed tank via the cold/hot water pipe and can adjust the temperature of the water supplied to the cold/hot water type radiant panel.

ここで、「冷温水式放射パネル」は、例えば、部屋の天井面と床面のいずれか一方又は両方に設置することができる。 Here, the "hot and cold water radiant panel" can be installed, for example, on either or both of the ceiling and floor of a room.

前記冷媒熱交換器側の流量・温度差を、前記冷媒熱交換器側の仕様範囲で自動的に制御し、前記冷温水式放射パネルへの送水温度を前記比例三方弁で制御可能に構成することができる。 The flow rate and temperature difference on the refrigerant heat exchanger side can be automatically controlled within the specification range of the refrigerant heat exchanger side, and the temperature of the water sent to the hot and cold water radiant panel can be controlled by the proportional three-way valve.

前記直接熱交換型密閉タンクは、前記冷媒熱交換器から第1の温度の冷水又は温水を受けるとともに、前記冷温水式放射パネルから第2の温度の冷水又は温水を受け、これらを混合し、
第3の温度の冷水又は温水を前記冷温水式放射パネルに送り出すとともに、第4の温度の冷水又は温水を前記冷媒熱交換器に送り出すように構成することができる。
The direct heat exchange type sealed tank receives cold water or hot water of a first temperature from the refrigerant heat exchanger and cold water or hot water of a second temperature from the cold/hot water radiant panel, and mixes them;
The system may be configured to deliver cold or hot water at a third temperature to the hydronic radiant panel and to deliver cold or hot water at a fourth temperature to the refrigerant heat exchanger.

本発明のハイブリッド空調システムによれば、直接熱交換型密閉タンクを設置することで、同タンクの1次側と2次側の各々の出入口温度差を自由に変えることができるため、冷温水ユニットの能力を定格能力までフルに活用することができる。
また、放射パネル側の冷温水の流量と冷温水ユニット2次側の流量を任意に可変にすることができる。すなわち、冷温水ユニットの流量の制約を受けずに放射パネルに必要な流量を供給することができる。
更に、直接熱交換型密閉タンクの2次側に比例3方弁を設置することで、冷温水式放射パネルへの送水温度を任意に制御することができる。
According to the hybrid air conditioning system of the present invention, by installing a direct heat exchange type sealed tank, the temperature difference between the inlet and outlet of the primary and secondary sides of the tank can be freely changed, thereby making it possible to fully utilize the capacity of the hot and cold water unit up to its rated capacity.
In addition, the flow rate of the hot and cold water on the radiant panel side and the flow rate on the secondary side of the hot and cold water unit can be freely varied. In other words, the required flow rate can be supplied to the radiant panel without being restricted by the flow rate of the hot and cold water unit.
Furthermore, by installing a proportional three-way valve on the secondary side of the direct heat exchange type sealed tank, the temperature of the water sent to the hot and cold water radiant panel can be controlled as desired.

更に、本発明に係るハイブリッド空調システムにおいて、ビル用マルチ屋外機と放射パネルを用いることで省エネルギー性を向上可能となる。すなわち、効率の良いビル用マルチ屋外機を活用することにより、省エネルギーと放射パネルによる室内設定温度の緩和による省エネルギーが実現可能となる。例えば、冷房設定温度としては、通常26℃のところを本発明に係るシステムでは27℃、暖房設定温度としては、通常22℃のところを本発明に係るシステムでは20℃とすることができる。 Furthermore, in the hybrid air conditioning system of the present invention, the use of a multi-outdoor unit for buildings and a radiant panel can improve energy conservation. In other words, by utilizing an efficient multi-outdoor unit for buildings, energy conservation can be achieved by relaxing the indoor temperature setting with the radiant panel. For example, the cooling setting temperature, which is normally 26°C, can be set to 27°C with the system of the present invention, and the heating setting temperature, which is normally 22°C, can be set to 20°C with the system of the present invention.

(ハイブリッド空調システムの制御方法)
本発明の制御方法においては、前記ハイブリッド空調システムにおいて冷房運転をする時には、室内露点温度を計測し、当該室内露点温度が前記冷温水式放射パネルの露点温度より高い場合には、前記室内空調機のみを起動し、
室内露点温度が前記冷温水式放射パネルの露点温度より低くなった時点で、前記冷温水式放射パネルを起動し、前記室内空調機及び前記冷温水式放射パネルを最大出力で運転し、
室内設定温度に到達した後は、前記室内空調機の運転を停止または弱め、前記冷温水式放射パネルを主体に運転する。
(Control method of hybrid air conditioning system)
In the control method of the present invention, when performing cooling operation in the hybrid air conditioning system, an indoor dew point temperature is measured, and when the indoor dew point temperature is higher than the dew point temperature of the hot and cold water radiant panel, only the indoor air conditioner is started,
When the indoor dew point temperature becomes lower than the dew point temperature of the hot and cold water radiant panel, the hot and cold water radiant panel is started and the indoor air conditioner and the hot and cold water radiant panel are operated at maximum output;
After the indoor set temperature is reached, the operation of the indoor air conditioner is stopped or reduced, and the hot and cold water radiant panel is mainly operated.

本発明の制御方法においては、前記ハイブリッド空調システムにおいて暖房運転を開始した直後は、前記室内空調機及び前記冷温水式放射パネルを最大出力で運転し、
室内設定温度に到達した後は、前記室内空調機の運転を停止または弱め、前記冷温水式放射パネルを主体に運転する。
In the control method of the present invention, immediately after starting a heating operation in the hybrid air conditioning system, the indoor air conditioner and the hot and cold water radiant panel are operated at maximum output,
After the indoor set temperature is reached, the operation of the indoor air conditioner is stopped or reduced, and the hot and cold water radiant panel is mainly operated.

本発明の制御方法において、ハイブリッド空調システムの起動時は、冷温水式放射パネルの表面温度を低く(暖房時は高く)し、起動直後は放射感を体感しやすくすると同時に室内空調機で素早く室内温度を設定温度とする。そして、室内温度が安定した後は、冷温水式放射パネルによる放射空調主体で運転をおこない、対流型の室内空調機は必要最少出力で運転する。このため、放射空調と対流空調のメリットを組み合わせた最適な空調方式が実現可能となる。
In the control method of the present invention, when the hybrid air conditioning system is started, the surface temperature of the hot and cold water radiant panel is lowered (higher during heating), making it easier to feel the radiation immediately after start-up, while at the same time quickly setting the indoor temperature to the set temperature with the indoor air conditioner. Then, after the indoor temperature has stabilized, operation is mainly performed with radiant air conditioning using the hot and cold water radiant panel, and the convection type indoor air conditioner is operated at the minimum necessary output. This makes it possible to realize an optimal air conditioning method that combines the advantages of radiant air conditioning and convection air conditioning.

図1は本発明に係るハイブリッド空調システムの構成を示すものであり、(A)がシステム全体の構成図(ブロック図)、(B)が最大負荷時における直接熱交換型密閉タンク周辺の冷温水の流れを示す説明図である。FIG. 1 shows the configuration of a hybrid air conditioning system according to the present invention, where (A) is a configuration diagram (block diagram) of the entire system, and (B) is an explanatory diagram showing the flow of cold and hot water around a direct heat exchange type sealed tank at maximum load.

以下、本発明の実施形態について、添付図面に基づいて説明する。本発明は、冷風又は温風及び、冷水又は温水の両方を利用したハイブリッド空調システムを利用したハイブリッド空調システムの制御方法である。

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a hybrid air-conditioning system that uses both cold air or hot air and cold water or hot water, and a control method thereof.

本発明に係るハイブリッド空調システム10は、ヒートポンプ屋外機12と、ヒートポンプ屋外機12との間で冷媒を循環させることにより冷風または温風を調製する複数の室内空調機14と、冷媒を循環させる冷媒配管15に連結され、冷媒との熱交換により冷水または温水を調製する冷媒熱交換器16とを備える。 The hybrid air conditioning system 10 according to the present invention comprises a heat pump outdoor unit 12, a number of indoor air conditioners 14 that prepare cold or hot air by circulating a refrigerant between the heat pump outdoor unit 12, and a refrigerant heat exchanger 16 that is connected to a refrigerant pipe 15 that circulates the refrigerant and prepares cold or hot water by exchanging heat with the refrigerant.

ハイブリッド空調システム10は、また、冷温水配管17を介して冷媒熱交換器16から供給される冷水又は温水によって輻射冷暖房を行う冷温水式放射パネル18と、直接熱交換型密閉タンク20と、直接熱交換型密閉タンク20に連結され、冷水または温水の熱膨張を吸収するための膨張タンク22と、冷温水式放射パネル18への送水温度を調整可能な比例三方弁24とを備えている。 The hybrid air conditioning system 10 also includes a hot and cold water radiant panel 18 that performs radiant heating and cooling using cold water or hot water supplied from the refrigerant heat exchanger 16 via hot and cold water piping 17, a direct heat exchange type sealed tank 20, an expansion tank 22 connected to the direct heat exchange type sealed tank 20 for absorbing the thermal expansion of the cold water or hot water, and a proportional three-way valve 24 that can adjust the temperature of the water supplied to the hot and cold water radiant panel 18.

直接熱交換型密閉タンク20は、1次側が冷温水配管17を介して冷媒熱交換器16に連結され、2次側が冷温水配管17を介して冷温水式放射パネル18に連結され、1次側と2次側の流量を可変とする。比例三方弁24は、冷温水配管17を介して直接熱交換型密閉タンク20の2次側に連結されている。 The direct heat exchange type sealed tank 20 has a primary side connected to the refrigerant heat exchanger 16 via the cold/hot water piping 17, and a secondary side connected to the cold/hot water radiant panel 18 via the cold/hot water piping 17, making the flow rate of the primary side and secondary side variable. The proportional three-way valve 24 is connected to the secondary side of the direct heat exchange type sealed tank 20 via the cold/hot water piping 17.

ここで、冷温水式放射パネル18は、例えば、部屋の天井と床下のいずれか一方又は両方に設置さすることができる。なお、図1(A)において、符号26はコントローラ、符号28は室温センサを示すものとする。 Here, the hot and cold water radiant panel 18 can be installed, for example, on either the ceiling or under the floor of the room, or both. In FIG. 1(A), the reference numeral 26 denotes a controller, and the reference numeral 28 denotes a room temperature sensor.

冷媒熱交換器16側の流量・温度差を、冷媒熱交換器16側の仕様範囲で自動的に制御し、冷温水式放射パネル18への送水温度を比例三方弁24で制御可能に構成されている。 The flow rate and temperature difference on the refrigerant heat exchanger 16 side are automatically controlled within the specification range of the refrigerant heat exchanger 16 side, and the temperature of the water sent to the hot and cold water radiant panel 18 can be controlled by the proportional three-way valve 24.

直接熱交換型密閉タンク20は、冷媒熱交換器16から第1の温度の冷水又は温水を受けるとともに、冷温水式放射パネル18から第2の温度の冷水又は温水を受け、これらを混合する。そして、第3の温度の冷水又は温水を冷温水式放射パネル18に送り出すとともに、第4の温度の冷水又は温水を冷媒熱交換器16に送り出すように構成されている。 The direct heat exchange type sealed tank 20 receives cold water or hot water of a first temperature from the refrigerant heat exchanger 16, and cold water or hot water of a second temperature from the cold/hot water radiant panel 18, and mixes them. It is then configured to send cold water or hot water of a third temperature to the cold/hot water radiant panel 18, and cold water or hot water of a fourth temperature to the refrigerant heat exchanger 16.

図1(B)に示すように、ハイブリッド空調システム10の最大負荷時には、直接熱交換型密閉タンク20に冷媒熱交換器16から15℃の冷水が入るとともに、比例三方弁24を介して冷温水式放射パネル18から21℃の冷水が入る。そして、これらの冷水が直接熱交換型密閉タンク20内で混合される。
直接熱交換型密閉タンク20からは、19℃の冷水が冷温水式放射パネル18に送られ、同時に、20℃の冷水が冷媒熱交換器16に送られる。なお、冷温水の流れる流量、温度は負荷によって変動する。
1B, when the hybrid air conditioning system 10 is under maximum load, cold water at 15° C. enters the direct heat exchange type sealed tank 20 from the refrigerant heat exchanger 16, and cold water at 21° C. enters from the cold/hot water radiant panel 18 via the proportional three-way valve 24. Then, these cold waters are mixed inside the direct heat exchange type sealed tank 20.
From the direct heat exchange type sealed tank 20, cold water at 19° C. is sent to the cold/hot water radiant panel 18, and at the same time, cold water at 20° C. is sent to the refrigerant heat exchanger 16. The flow rate and temperature of the cold/hot water vary depending on the load.

一方、ハイブリッド空調システム10の最小負荷時には、冷媒熱交換器16から直接熱交換型密閉タンク20に15℃の冷水が入ると同時に、冷温水式放射パネル18から21℃の冷水が直接熱交換型密閉タンク20に入る。そして、これらの冷水が直接熱交換型密閉タンク20内で混合される。
直接熱交換型密閉タンク20からは、19℃の冷水が冷温水式放射パネル18に送られ、同時に、17℃の冷水が冷媒熱交換器16に送られる。
On the other hand, when the hybrid air conditioning system 10 is at minimum load, cold water at 15° C. enters the direct heat exchange type sealed tank 20 from the refrigerant heat exchanger 16, and at the same time, cold water at 21° C. enters the direct heat exchange type sealed tank 20 from the cold/hot water radiant panel 18. Then, these cold waters are mixed inside the direct heat exchange type sealed tank 20.
From the direct heat exchange type sealed tank 20, cold water at 19° C. is sent to the cold/hot water radiant panel 18, and at the same time, cold water at 17° C. is sent to the refrigerant heat exchanger 16.

(ハイブリッド空調システムの制御方法)
次に、コントローラ26を利用した、ハイブリッド空調システム10の室温制御方法について説明する。冷房運転をする時には、室内露点温度を室温センサ28によって計測し、当該室内露点温度が冷温水式放射パネル18の露点温度より高い場合には、室内空調機14のみを起動する。その後、室内露点温度が冷温水式放射パネル18の露点温度より低くなった時点で、冷温水式放射パネル18を起動し、室内空調機14及び冷温水式放射パネル18を最大出力で運転する。そして、室内温度が設定温度に到達した後は、室内空調機14の運転を停止または弱め、冷温水式放射パネル18を主体に空調運転を継続する。
(Control method of hybrid air conditioning system)
Next, a room temperature control method of the hybrid air conditioning system 10 using the controller 26 will be described. When performing cooling operation, the room temperature sensor 28 measures the room dew point temperature, and if the room dew point temperature is higher than the dew point temperature of the chilled/hot water radiant panel 18, only the indoor air conditioner 14 is started. Thereafter, when the room dew point temperature becomes lower than the dew point temperature of the chilled/hot water radiant panel 18, the chilled/hot water radiant panel 18 is started, and the indoor air conditioner 14 and the chilled/hot water radiant panel 18 are operated at maximum output. Then, after the indoor temperature reaches the set temperature, the operation of the indoor air conditioner 14 is stopped or reduced, and air conditioning operation is continued mainly by the chilled/hot water radiant panel 18.

一方、暖房運転を開始した直後は、室内空調機14及び冷温水式放射パネル18を最大出力で運転し、室内設定温度に到達した後は、室内空調機14の運転を停止または弱め、冷温水式放射パネル18を主体に運転する。 On the other hand, immediately after the heating operation starts, the indoor air conditioner 14 and the hot and cold water radiant panel 18 are operated at maximum output, and after the indoor set temperature is reached, the operation of the indoor air conditioner 14 is stopped or reduced, and the hot and cold water radiant panel 18 is mainly operated.

本発明の制御方法において、ハイブリッド空調システム10の起動時は、冷温水式放射パネル18の表面温度を低く(暖房時は高く)し、起動直後は放射感を体感しやすくすると同時に室内空調機14で素早く室内温度を設定温度とする。そして、室内温度が安定した後は、冷温水式放射パネル18による放射空調主体で運転をおこない、対流型の室内空調機14は必要最少出力で運転する。このため、放射空調と対流空調のメリットを組み合わせた最適な空調方式が実現可能となる。 In the control method of the present invention, when the hybrid air conditioning system 10 is started up, the surface temperature of the hot and cold water radiant panel 18 is lowered (higher during heating), making it easier to feel the radiation immediately after start-up, while at the same time the indoor temperature is quickly brought to the set temperature by the indoor air conditioner 14. Then, after the indoor temperature has stabilized, operation is mainly performed using radiant air conditioning by the hot and cold water radiant panel 18, and the convection type indoor air conditioner 14 is operated at the minimum necessary output. This makes it possible to realize an optimal air conditioning method that combines the benefits of radiant air conditioning and convection air conditioning.

以上、本発明について実施例を参照して説明したが、本発明はこれらの実施例に何ら限定されるものではなく、本発明の技術的思想の範囲内において適宜変更可能なものである。 The present invention has been described above with reference to examples, but the present invention is not limited to these examples and can be modified as appropriate within the scope of the technical concept of the present invention.

Claims (2)

冷風又は温風及び、冷水又は温水の両方を利用したハイブリッド空調システムを利用した制御方法であって、
ヒートポンプ屋外機と;
前記ヒートポンプ屋外機との間で冷媒を循環させることにより冷風または温風を調製する室内空調機と;
前記冷媒を循環させる冷媒配管に連結され、当該冷媒との熱交換により冷水または温水を調製する冷媒熱交換器と、
前記冷媒熱交換器により冷温水配管を介して供給される冷水又は温水によって輻射冷暖房を行う冷温水式放射パネルと、
1次側が前記冷温水配管を介して前記冷媒熱交換器に連結され、2次側が前記冷温水配管を介して前記冷温水式放射パネルに連結され、前記1次側と2次側の流量を可変とする直接熱交換型密閉タンクと、
前記直接熱交換型密閉タンクに連結され、前記冷水または温水の熱膨張を吸収するための膨張タンクと、
前記冷温水配管を介して前記直接熱交換型密閉タンクの前記2次側に連結され、前記冷温水式放射パネルへの送水温度を調整可能な比例三方弁と、
を備えたハイブリッド空調システムの制御方法とされ、
該ハイブリッド空調システムにおいて冷房運転をする時には、室内露点温度を計測し、
当該室内露点温度が前記冷温水式放射パネルの露点温度より高い場合には、前記室内空調機のみを起動し、
室内露点温度が前記冷温水式放射パネルの露点温度より低くなった時点で、前記冷温水式放射パネルを起動し、前記室内空調機及び前記冷温水式放射パネルを最大出力で運転し、
室内設定温度に到達した後は、前記室内空調機の運転を停止または弱め、前記冷温水式放射パネルを主体に運転することを特徴とするハイブリッド空調システムの制御方法。
A control method using a hybrid air conditioning system that uses both cold air or hot air and cold water or hot water,
A heat pump outdoor unit;
an indoor air conditioner that prepares cold air or hot air by circulating a refrigerant between the indoor air conditioner and the heat pump outdoor unit;
A refrigerant heat exchanger that is connected to a refrigerant pipe that circulates the refrigerant and prepares cold water or hot water by heat exchange with the refrigerant;
A hot and cold water radiant panel that performs radiant heating and cooling using cold water or hot water supplied through a hot and cold water pipe by the refrigerant heat exchanger;
a direct heat exchange type sealed tank having a primary side connected to the refrigerant heat exchanger via the hot and cold water piping and a secondary side connected to the hot and cold water radiant panel via the hot and cold water piping, the flow rate of the primary side and the secondary side being variable;
an expansion tank connected to the direct heat exchange type sealed tank for absorbing thermal expansion of the cold water or hot water;
a proportional three-way valve connected to the secondary side of the direct heat exchange type sealed tank via the hot and cold water piping and capable of adjusting the temperature of water supplied to the hot and cold water radiant panel;
The present invention relates to a control method for a hybrid air conditioning system comprising:
When the hybrid air conditioning system is in cooling operation, the indoor dew point temperature is measured,
When the indoor dew point temperature is higher than the dew point temperature of the hot and cold water radiant panel, only the indoor air conditioner is started;
When the indoor dew point temperature becomes lower than the dew point temperature of the hot and cold water radiant panel, the hot and cold water radiant panel is started and the indoor air conditioner and the hot and cold water radiant panel are operated at maximum output;
A control method for a hybrid air conditioning system, characterized in that after the indoor set temperature is reached, operation of the indoor air conditioner is stopped or reduced, and the hot and cold water radiant panel is mainly operated.
冷風又は温風及び、冷水又は温水の両方を利用したハイブリッド空調システムを利用した制御方法であって、
ヒートポンプ屋外機と;
前記ヒートポンプ屋外機との間で冷媒を循環させることにより冷風または温風を調製する室内空調機と;
前記冷媒を循環させる冷媒配管に連結され、当該冷媒との熱交換により冷水または温水を調製する冷媒熱交換器と、
前記冷媒熱交換器により冷温水配管を介して供給される冷水又は温水によって輻射冷暖房を行う冷温水式放射パネルと、
1次側が前記冷温水配管を介して前記冷媒熱交換器に連結され、2次側が前記冷温水配管を介して前記冷温水式放射パネルに連結され、前記1次側と2次側の流量を可変とする直接熱交換型密閉タンクと、
前記直接熱交換型密閉タンクに連結され、前記冷水または温水の熱膨張を吸収するための膨張タンクと、
前記冷温水配管を介して前記直接熱交換型密閉タンクの前記2次側に連結され、前記冷温水式放射パネルへの送水温度を調整可能な比例三方弁と、
を備えたハイブリッド空調システムの制御方法とされ、
当該ハイブリッド空調システムにおいて暖房運転を開始した直後は、前記室内空調機及び前記冷温水式放射パネルを最大出力で運転し、
室内設定温度に到達した後は、前記室内空調機の運転を停止または弱め、前記冷温水式放射パネルを主体に運転することを特徴とするハイブリッド空調システムの制御方法。
A control method using a hybrid air conditioning system that uses both cold air or hot air and cold water or hot water,
A heat pump outdoor unit;
an indoor air conditioner that prepares cold air or hot air by circulating a refrigerant between the indoor air conditioner and the heat pump outdoor unit;
A refrigerant heat exchanger that is connected to a refrigerant pipe that circulates the refrigerant and prepares cold water or hot water by heat exchange with the refrigerant;
A hot and cold water radiant panel that performs radiant heating and cooling using cold water or hot water supplied through a hot and cold water pipe by the refrigerant heat exchanger;
a direct heat exchange type sealed tank having a primary side connected to the refrigerant heat exchanger via the hot and cold water piping and a secondary side connected to the hot and cold water radiant panel via the hot and cold water piping, the flow rate of the primary side and the secondary side being variable;
an expansion tank connected to the direct heat exchange type sealed tank for absorbing thermal expansion of the cold water or hot water;
a proportional three-way valve connected to the secondary side of the direct heat exchange type sealed tank via the hot and cold water piping and capable of adjusting the temperature of water supplied to the hot and cold water radiant panel;
The present invention relates to a control method for a hybrid air conditioning system comprising:
Immediately after starting heating operation in the hybrid air conditioning system, the indoor air conditioner and the hot and cold water radiant panel are operated at maximum output,
A control method for a hybrid air conditioning system, characterized in that after the indoor set temperature is reached, operation of the indoor air conditioner is stopped or reduced, and the hot and cold water radiant panel is mainly operated.
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