JP4905826B2 - Optimal operation control system for air conditioner combined with dehumidifier - Google Patents
Optimal operation control system for air conditioner combined with dehumidifier Download PDFInfo
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Description
除湿機を併用した空調装置の運転制御システムであって、特に外気の温湿度値や空調対象空間の室内温湿度値に基づいて、該空調対象空間の使用想定人数及び設定温湿度値に対応した空調環境条件を、自動制御によって省エネルギーで実現するのに最適な運転機能を備えた除湿機併用型空調装置の最適運転制御システムに関する。 It is an operation control system for an air conditioner that also uses a dehumidifier, and in particular, based on the temperature / humidity value of the outside air and the room temperature / humidity value of the air-conditioning target space, it corresponds to the assumed number of people and the set temperature / humidity value of the air-conditioning target space The present invention relates to an optimum operation control system for a dehumidifier combined type air conditioner having an optimum operation function for realizing air-conditioning environmental conditions with energy saving by automatic control.
従来、収容可能人員の多い空調対象空間に大勢の人が入場し、その人員密度が２．５人／ｍ2に達するというような混雑した状態にある場合でも、その大きな空調対象空間に対する空調システムとしては、一般の空調と同様、図３の従来の空調システムの一実施例を示す概念図に示すような冷水コイル８３、８４と温水コイル８１、８２を利用して過冷却と再熱により温湿度制御を行う空調システムが用いられてきた。
すなわち、外気（新鮮空気）を取り入れ、空調対象空間Ｓ内空気の一部を外部に排出する機能を有する外調機１と、空調対象空間Ｓに温湿度を調節した処理空気を供給する空調機２と、前記外調機１、空調機２、空調対象空間Ｓを結ぶダクト５３、５４、５５、５６、５７とで構成された空調システムであって、前記外調機１のハウジング内は、外気を取り入れるための給気室６と、空調対象空間Ｓ内空気の一部を外部に排出するための排気室７とに分離され、かつ給気室６と排気室７に跨って全熱交換ロータ７１が設けられており、この全熱交換ロータ７１によって外気と排気の持つ顕熱と潜熱を同時に交換するとともに、前記給気室６にはファン６１によって生じる外気の流れの上流から下流に向けて、外気を加熱する温水コイル８１と外気を一次冷却する冷水コイル８３が、また、必要に応じて外気を加湿する加湿器９１が配置され、外気の温湿度の一次調節を行ってダクト５７により空調機２に送られる。
そして空調機２のハウジング内には、空気の流れの上流から下流に向けて順次、外調機１からの外気と空調対象空間Ｓからの還気が混じった空気を過冷却する冷水コイル８４、冷水コイル８４で過冷却された空気を加熱する温水コイル８２を備えて、ファン６５によって空調対象空間Ｓへ送り込む処理空気の温湿度調整を行っている。
Conventionally, even when a large number of people enter an air-conditioned space with a large capacity, and the personnel density reaches 2.5 people / m 2 , the air-conditioning system for the large air-conditioned space As in general air conditioning, the chilled water coils 83 and 84 and the hot water coils 81 and 82 as shown in the conceptual diagram of an embodiment of the conventional air conditioning system in FIG. Air conditioning systems that perform humidity control have been used.
That is, an external air conditioner 1 having a function of taking outside air (fresh air) and discharging a part of the air in the air-conditioning target space S to the outside, and an air-conditioning unit that supplies processing air with adjusted temperature and humidity to the air-conditioning target space S 2 and ducts 53, 54, 55, 56, 57 connecting the external air conditioner 1, the air conditioner 2, and the air conditioning target space S, and the inside of the housing of the external air conditioner 1 is Separated into an air supply chamber 6 for taking in outside air and an exhaust chamber 7 for exhausting a part of the air in the air-conditioning target space S to the outside, and total heat exchange across the air supply chamber 6 and the exhaust chamber 7 A rotor 71 is provided. The total heat exchange rotor 71 simultaneously exchanges sensible heat and latent heat of the outside air and the exhaust, and the air supply chamber 6 is directed from the upstream to the downstream of the flow of the outside air generated by the fan 61. And a hot water coil 81 for heating the outside air Cold water coil 83 to the primary cooling gas is also disposed humidifier 91 for humidifying the outside air if necessary, sent to the air conditioner 2 by a duct 57 by performing primary modulation of the outside air temperature and humidity.
In the housing of the air conditioner 2, a chilled water coil 84 that supercools the air mixed with the outside air from the external air conditioner 1 and the return air from the air conditioning target space S sequentially from the upstream to the downstream of the air flow, A hot water coil 82 for heating the air supercooled by the cold water coil 84 is provided, and the temperature and humidity of the processing air sent to the air-conditioning target space S by the fan 65 are adjusted.
上記のような従来の空調システムでは、空調機２の冷水コイル８４に供給される水の温度によりその除湿能力に限界があり、空調対象空間Ｓの温湿度条件は温度２５℃、相対湿度６０％、あるいは、温度２６℃、相対湿度５０％で運用されることが多かった。 In the conventional air conditioning system as described above, the dehumidifying capacity is limited by the temperature of the water supplied to the cold water coil 84 of the air conditioner 2, and the temperature and humidity conditions of the air conditioning target space S are a temperature of 25 ° C. and a relative humidity of 60%. Or, it was often operated at a temperature of 26 ° C. and a relative humidity of 50%.
一方、人体に優しい室内温度条件としては、外気温度と空調対象空間Ｓの温度との差を少なくするとともに、空調対象空間Ｓの温度を上げるかわりに湿度を下げるのが好ましく、一般には温度２７℃、相対湿度４０％が好適とされている。
しかし、収容可能人員の多い空調対象空間Ｓに大勢の人が入場し、その人員密度が２．５人／ｍ2に達するというような混雑した状態において、上記のような好適な温湿度条件で空調を行う場合には、空調機２の冷水コイル８４の除湿能力の限界により、空調対象空間Ｓに送給する風量は膨大なものとなる。
また、冷水コイル８４へ供給する水の温度を低下させて冷水コイル８４の除湿効果の限界を高めれば空調対象空間Ｓへの送給風量の削減は可能だが、冷凍機等の熱源機器で水温をより一層低下させなければならず、使用できる熱源機器が限られたり、熱源機器の外形寸法が増大したり、熱源機器の効率が低下したりする等の問題が生じる。
On the other hand, as indoor temperature conditions that are gentle to the human body, it is preferable to reduce the difference between the outside air temperature and the temperature of the air-conditioning target space S, and lower the humidity instead of increasing the temperature of the air-conditioning target space S. A relative humidity of 40% is preferred.
However, in a crowded state where a large number of people enter the air-conditioning target space S with a large number of people that can be accommodated and the personnel density reaches 2.5 people / m 2 , When air conditioning is performed, the amount of air supplied to the air conditioning target space S becomes enormous due to the limit of the dehumidifying capacity of the cold water coil 84 of the air conditioner 2.
Moreover, if the temperature of the water supplied to the cold water coil 84 is lowered to increase the limit of the dehumidifying effect of the cold water coil 84, the amount of air supplied to the air-conditioning target space S can be reduced, but the water temperature can be reduced with a heat source device such as a refrigerator. There is a problem that the heat source equipment that can be used is limited, the external dimensions of the heat source equipment are increased, and the efficiency of the heat source equipment is reduced.
そこで本発明者は、先に特願２００５−１２５９１によって、図４の従来の空調システムの他の実施例の概念図に示すような空調システムを発明した。
すなわち、ハウジング内の仕切壁によって、外気（新鮮空気）を導入するための給気室６と空調対象空間Ｓからの還気の一部である排気を外部に排出するための排気室７に２分され、かつ給気室６と排気室７に跨って全熱交換ロータ７１が設けられ、この全熱交換ロータ７１によって外気と排気の持つ顕熱と潜熱を同時に交換する全熱交換機４と、
ハウジング内の仕切壁によって前記全熱交換機４から送給された外気の除湿を行う除湿室８と別途外部から取り入れた空気を加熱して除湿剤を乾燥させる乾燥室９とに２分され、かつ除湿室８と乾燥室９に跨って除湿剤使用の除湿ロータ７２が設けられ、また除湿室８には全熱交換機４から送給された外気を冷却又は加熱する冷温コイル８５が前記除湿ロータ７２の上流に配置されてなる除湿機３と、
前記除湿ロータ７２により除湿されてダクト５２から送給された空気と空調対象空間Ｓからの還気とが混じった処理空気を冷却又は加熱する冷温コイル８６、及び必要に応じて空調対象空間Ｓへ送り込む処理空気に加湿する加湿器９２を有する空調機２と、
前記全熱交換機４、除湿機３、空調機２及び空調対象空間Ｓを結ぶダクト５１、５２、５３、５４、５５、５６からなる空調システムである。
Therefore, the present inventor previously invented an air conditioning system as shown in a conceptual diagram of another embodiment of the conventional air conditioning system of FIG. 4 according to Japanese Patent Application No. 2005-12591.
That is, the partition wall in the housing has two air supply chambers 6 for introducing outside air (fresh air) and two exhaust chambers 7 for exhausting exhaust gas that is part of the return air from the air-conditioning target space S to the outside. A total heat exchange rotor 71 provided across the air supply chamber 6 and the exhaust chamber 7, and the total heat exchanger 4 for simultaneously exchanging sensible heat and latent heat of the outside air and exhaust by the total heat exchange rotor 71;
The chamber is divided into a dehumidifying chamber 8 for dehumidifying the outside air supplied from the total heat exchanger 4 by a partition wall in the housing and a drying chamber 9 for heating the air taken from outside and drying the dehumidifying agent, and A dehumidifying rotor 72 using a dehumidifying agent is provided across the dehumidifying chamber 8 and the drying chamber 9, and a cooling coil 85 for cooling or heating the outside air supplied from the total heat exchanger 4 is provided in the dehumidifying rotor 72. A dehumidifier 3 arranged upstream of the
A cooling / heating coil 86 that cools or heats the processing air mixed with the air dehumidified by the dehumidifying rotor 72 and fed from the duct 52 and the return air from the air-conditioning target space S, and to the air-conditioning target space S as necessary. An air conditioner 2 having a humidifier 92 for humidifying the processing air to be fed;
The air conditioning system includes ducts 51, 52, 53, 54, 55, and 56 that connect the total heat exchanger 4, the dehumidifier 3, the air conditioner 2, and the air conditioning target space S.
上記発明によって、空調機２の冷温コイル８６へ送給される水の温度を図３に示した従来の空調システムと同じ値にして空調を行っても、空調対象空間Ｓを人体に優しい環境条件である温度２７℃、相対湿度４０％程度に保持でき、従来の空調システムに比較して空調対象空間Ｓへ送り込む処理空気量を少なくすることもできる。したがって、空調機２の小型化、空調騒音の低減、ダクト５１、５２、５３、５４、５５、５６の小径化が可能となり、さらには従来の空調システムに比べてエネルギー消費量、及び冷凍機等の熱源機器の容量を減少させることができ、空調システムの省エネルギー化、コストダウンが図れることとなったが、前記発明も、外調機１のファン６１の制御ができず常に一定の外気（新鮮空気）が導入されており、また導入された外気はすべて除湿機３に送給されるため、空調対象空間Ｓへの入場人員数が少ない場合でも導入する外気を減らすことができず、また外気が乾燥していて全熱交換機４での除湿で十分事足りる場合や除湿機３での除湿量が極めて少ない場合でも除湿機３を停止できず、除湿機３のガスバーナーＢは常に点火された状態にあり、不要なエネルギーを消費してしまうという問題点が残されていた。 According to the above-described invention, even if the temperature of the water supplied to the cooling coil 86 of the air conditioner 2 is the same value as the conventional air conditioning system shown in FIG. The temperature can be maintained at 27 ° C. and the relative humidity is about 40%, and the amount of processing air fed into the air-conditioning target space S can be reduced as compared with the conventional air conditioning system. Therefore, it is possible to reduce the size of the air conditioner 2, reduce the air conditioning noise, and reduce the diameter of the ducts 51, 52, 53, 54, 55, and 56. Furthermore, the energy consumption, the refrigerator, and the like compared to the conventional air conditioning system The capacity of the heat source equipment can be reduced, and the energy saving and cost reduction of the air conditioning system can be achieved. However, in the above invention, the fan 61 of the external air conditioner 1 cannot be controlled and the outside air is always constant (fresh). Air) is introduced, and all the introduced outside air is sent to the dehumidifier 3, so that even when the number of people entering the air-conditioning target space S is small, the introduced outside air cannot be reduced. If the dehumidifier is dry and the dehumidification in the total heat exchanger 4 is sufficient or the dehumidifier 3 has a very small amount of dehumidification, the dehumidifier 3 cannot be stopped, and the gas burner B of the dehumidifier 3 is always lit. Yes, a problem that would consume unnecessary energy had been left.
そこで本発明者は、さらに特願２００６−０５５３６５号の発明によって、前記除湿機３を作動しなくても事足りる場合に、除湿機の運転が停止できるよう、前記外気を除湿機３を経ることなく外調機１から空調機２に直接送給できるバイパスダクト５０を前記外調機１と空調機２との間に備え、また、外調機１のファンにインバータを備え、外気の導入風量及び排気の排出風量を制御可能とした空調システムを発明した（図５参照）。
しかし、上記特願２００６−５５３６５号の空調システムも、除湿機の作動・停止は手動によって行われており、除湿機の運転停止による省エネルギーの効果を完全には活用し得ないという問題があった。
本発明は、上記課題に鑑み、上記特願２００６−５５３６５号の空調システムの完全自動制御化を実現しようとするものである。
However, the air conditioning system of the above Japanese Patent Application No. 2006-55365 also has a problem in that the dehumidifier is operated and stopped manually, and the energy saving effect due to the deactivation of the dehumidifier cannot be fully utilized. .
In view of the above problems, the present invention intends to realize fully automatic control of the air conditioning system of the above Japanese Patent Application No. 2006-55365.
本発明者は上記課題を下記の手段で解決した。
〔１〕導入された外気と、空調対象空間からの還気の一部である排気とを全熱交換して前記外気の冷却、除湿、又は加熱、加湿する、全熱交換ロータ７１及び冷却機能である冷水コイルを備える外調機１と、
前記外調機１から送給された外気を除湿する除湿機３と、
前記除湿機３で除湿された外気と外調機１から直接送給された外気と空調対象空間Ｓからの還気との３者の混合空気、あるいは外調機１から直接送給された外気と空調対象空間Ｓからの還気との混合空気を冷却、除湿又は加熱、加湿して前記空調対象空間Ｓに処理空気として送給する空調機２とからなり、
かつ前記導入された外気、又は外調機１で冷却、除湿された外気の湿度が空調に適した湿度以下であって、前記除湿機３を作動しなくても事足りる場合に、前記外気を除湿機３を経ることなく外調機１から空調機２に直接送給するために、前記外調機１と空調機２との間にバイパスダクト５０を備えてなる除湿機併用型空調装置に係る空調システムにおいて、
外気温湿度及び、使用想定人数から空調対象空間Ｓでの除湿負荷を算出し、かつ、前記除湿負荷と外調機１及び空調機２の除湿能力の比較を行って、設定された空調対象空間Ｓの室内温湿度を、省エネルギーで達成するよう、計測された空調対象空間Ｓの温湿度値及び外気の温湿度値に基づいて、外調機１、空調機２及び除湿機３の運転の作動・停止を自動制御するものであって、
（１）除湿負荷が、外調機１及び空調機２の冷却機能によって除湿可能な量を超えた場合には、「除湿器運転必要」と判断して外調機１、空調機２、除湿機３を作動させる「制御１」を行い、
（２）除湿負荷が、外調機１及び空調機２の冷却機能によって除湿可能な量より少なく、かつ外気の温度と絶対湿度が前記空調環境条件として入力された室内設定温湿度値の絶対湿度より小さい場合には、「除湿機運転不要」「外調機の全熱交換ロータでの熱交換不要」と判断して、外気を外調機１で熱交換することなくバイパスダクト５０を介して空調機２へ直接送給し、外気による空調を優先させるよう外調機１と空調機２を作動させる「制御２」を行い、
（３）除湿負荷が、外調機１及び空調機２の冷却機能によって除湿可能な量より少なく、かつ外気の温度と絶対湿度が前記空調環境条件として入力された室内設定温湿度値の絶対湿度を超えている場合には、「除湿機運転不要」「外調機による熱交換必要」と判断して外調機１の全熱交換ロータ７１及び冷水コイル８３とを運転し、冷却された外気を、バイパスダクト５０を介して外調機１から空調機２に直接送給する「制御３」を行うよう
自動制御することを特徴とする除湿機併用型空調装置の最適運転制御システム。
The present inventor has solved the above problems by the following means.
[ 1 ] Total heat exchanging rotor 71 and cooling function for total heat exchange between the introduced outside air and the exhaust gas that is a part of the return air from the air-conditioning target space to cool, dehumidify, or heat and humidify the outside air An external air conditioner 1 including a cold water coil,
A dehumidifier 3 for dehumidifying the outside air supplied from the external air conditioner 1;
Three-way mixed air of outside air dehumidified by the dehumidifier 3 and outside air directly supplied from the outside air conditioner 1 and return air from the air conditioning target space S, or outside air directly supplied from the outside air conditioner 1 And an air conditioner 2 that cools, dehumidifies, heats, or humidifies the mixed air of the return air from the air-conditioning target space S and supplies the air to the air-conditioning target space S as processing air.
And when the humidity of the introduced outside air or the outside air cooled and dehumidified by the air conditioner 1 is not more than the humidity suitable for air conditioning, and it is not necessary to operate the dehumidifier 3, the outside air is dehumidified. A dehumidifier combined type air conditioner comprising a bypass duct 50 between the external air conditioner 1 and the air conditioner 2 in order to directly feed the air conditioner 1 to the air conditioner 2 without passing through the air conditioner 3. In the air conditioning system,
The dehumidifying load in the air-conditioning target space S is calculated from the outside air temperature humidity and the assumed number of users, and the dehumidifying load is compared with the dehumidifying capacity of the external air conditioner 1 and the air conditioner 2 to set the air-conditioning target space. Operation of the external air conditioner 1, the air conditioner 2 and the dehumidifier 3 based on the measured temperature and humidity value of the air-conditioning target space S and the temperature and humidity value of the outside air so that the indoor temperature and humidity of S can be achieved with energy saving・ Automatically controls stop,
(1) When the dehumidifying load exceeds the amount that can be dehumidified by the cooling function of the external air conditioner 1 and the air conditioner 2, it is determined that “dehumidifier operation is necessary” and the external air conditioner 1, air conditioner 2, dehumidifier Perform “Control 1” to operate machine 3,
(2) The absolute humidity of the indoor set temperature / humidity value in which the dehumidifying load is less than the amount that can be dehumidified by the cooling function of the external air conditioner 1 and the air conditioner 2 and the temperature and absolute humidity of the outside air are input as the air conditioning environment conditions. In the case of being smaller, it is judged that “dehumidifier operation is not required” and “heat exchange is not required in the total heat exchange rotor of the external conditioner”, and the outside air is not exchanged in the external conditioner 1 via the bypass duct 50. Performs “Control 2” to operate the external air conditioner 1 and the air conditioner 2 so as to give priority to the air-conditioning by the outside air.
(3) The absolute humidity of the indoor set temperature / humidity value in which the dehumidifying load is less than the amount that can be dehumidified by the cooling function of the external air conditioner 1 and the air conditioner 2 and the temperature and absolute humidity of the outside air are input as the air conditioning environment conditions Is exceeded, it is determined that “dehumidifier operation is not necessary” and “heat exchange by the external air conditioner is necessary”, and the total heat exchanging rotor 71 and the cold water coil 83 of the external air conditioner 1 are operated to cool the outside air. The optimum operation control system of the dehumidifier combined type air conditioner, wherein the control is automatically performed so as to perform “control 3” in which the air conditioner 1 is directly supplied from the external air conditioner 1 to the air conditioner 2 through the bypass duct 50.
〔２〕前記除湿負荷が、外調機１及び空調機２の冷却機能に除湿可能な量より少ない場合に、前記外調機１の全熱交換ロータ７１の動作を選択する制御演算として、
外気温湿度から算出された外気エンタルピと、室内設定温湿度から算出された室内設定エンタルピとを比較して外気エンタルピが室内設定エンタルピより大きい場合に「制御３」へ進み、
外気温湿度から算出された外気露点温度と、室内設定温湿度から算出された室内設定露点温度とを比較して外気露点温度が室内設定露点温度より大きい場合に「制御３」に進み、外気温湿度から算出される寒冷な外気による除湿量と、使用想定人数から算出した空調対象空間Ｓでの除湿負荷とを比較して除湿負荷が寒冷な外気による除湿量より大きい場合に「制御３」に進み、
それ以外の場合は「制御２」に進む
ことを特徴とする前項〔１〕に記載の除湿機併用型空調装置の最適運転制御システム。
[ 2 ] When the dehumidifying load is less than the amount that can be dehumidified by the cooling function of the external air conditioner 1 and the air conditioner 2, as a control calculation for selecting the operation of the total heat exchange rotor 71 of the external air conditioner 1,
Comparing the outside air enthalpy calculated from the outside temperature and humidity with the inside setting enthalpy calculated from the indoor set temperature and humidity, if the outside air enthalpy is larger than the indoor set enthalpy, proceed to “Control 3”.
The outside dew point temperature calculated from the outside air temperature humidity is compared with the indoor set dew point temperature calculated from the indoor set temperature and humidity, and if the outside air dew point temperature is higher than the indoor set dew point temperature, the process proceeds to “Control 3”. When the dehumidification amount by the cold outside air calculated from the humidity and the dehumidification load in the air-conditioning target space S calculated from the assumed number of users are compared, and the dehumidification load is larger than the dehumidification amount by the cold outside air, “Control 3” is set. Proceed,
In other cases, the optimum operation control system for the dehumidifier combined type air conditioner described in the preceding item [ 1 ], which proceeds to “control 2”.
〔３〕前記除湿機併用型空調装置の外調機１の全熱交換ロータ７１が、導入された外気と空調対象空間からの還気の一部である排気との間での熱交換を必要としない場合に、全熱交換ロータ７１をバイパスして外気を導入し排気を排出するバイパス手段５ａ、５ｂを備えてなることを特徴とする前項〔１〕又は〔２〕に記載の除湿機併用型空調装置の最適運転制御システム。
[ 3 ] The total heat exchange rotor 71 of the external air conditioner 1 of the dehumidifier combined type air conditioner needs to exchange heat between the introduced outside air and the exhaust that is a part of the return air from the air-conditioning target space. The dehumidifier combined use according to [ 1 ] or [ 2 ] above, comprising bypass means 5a, 5b for bypassing the total heat exchanging rotor 71 to introduce outside air and discharge exhaust Type air conditioner optimum operation control system.
〔４〕前記除湿機併用型空調装置の外調機１のファン６１、６２がインバータを備え、外気の導入風量、及び排気の排出風量を制御可能にしてなることを特徴とする前項〔１〕〜〔３〕のいずれか１項に記載の除湿機併用型空調装置の最適運転制御システム。 [ 4 ] The preceding item [ 1 ], wherein the fans 61 and 62 of the external air conditioner 1 of the dehumidifier combined type air conditioner are provided with an inverter, and can control the amount of air introduced and the amount of exhaust discharged. The optimal operation control system of a dehumidifier combined use type air conditioner given in any 1 paragraph of [ 3 ].
本発明の除湿機併用型空調装置の最適運転制御システムにより下記の効果が発揮される。
（ア）本発明の除湿機併用型空調装置が、計測された空調対象空間の室内温湿度値及び外気の温湿度値に基づいて外調機、空調機、除湿機の運転を制御する運転制御装置を備え、該運転制御装置が、空調対象空間の使用想定人数や室内設定温湿度値等あらかじめ入力された空調環境条件と計測された前記室内温湿度値及び外気温湿度値から、より少ない消費エネルギーで先に設定された空調環境条件を維持するよう外調機、空調機、除湿機の運転を制御するので、省エネを考慮した最適運転が可能になる。
（イ）前記運転制御装置が、空調対象空間の使用想定人数から該空調対象空間での除湿負荷を算出し、該除湿負荷と外調機及び空調機の冷却機能によって除湿可能な量とを比較し除湿負荷が除湿可能な量より少ない場合には、除湿機の運転を停止するよう制御し、かつ除湿機が停止したときに外調機から空調機に除湿機を経ることなく外気を直接送給するバイパスダクトを備えているので、除湿機のガスバーナーとファンを停止でき、省エネルギー効果が増大する。
（ウ）外調機のファンにインバータを備え、外気の導入風量、及び排気の排出風量を制御できるので、空調対象空間の使用想定人数に対応しての外気導入が可能になり、また外気の温湿度が低い場合、外調機での冷却、除湿を行うことなく外気のみでの冷却、除湿ができ、空調装置の省エネルギー化が図れる。
The following effects are exhibited by the optimum operation control system of the dehumidifier combined type air conditioner of the present invention.
(A) Operation control in which the dehumidifier combined type air conditioner of the present invention controls the operation of the external air conditioner, the air conditioner, and the dehumidifier based on the measured indoor temperature and humidity value of the air-conditioning target space and the temperature and humidity value of the outside air The apparatus is equipped with a device, and the operation control device consumes less from the air conditioning environment conditions preliminarily input, such as the assumed number of people in the air-conditioning target space and the indoor set temperature / humidity value, and the measured indoor temperature / humidity value and outside temperature / humidity value. Since the operation of the external air conditioner, air conditioner, and dehumidifier is controlled so as to maintain the previously set air conditioning environment condition with energy, optimum operation considering energy saving becomes possible.
(B) The operation control device calculates the dehumidification load in the air-conditioning target space from the estimated number of people using the air-conditioning target space, and compares the dehumidifying load with the amount that can be dehumidified by the cooling function of the external air conditioner and air conditioner If the dehumidifying load is less than the amount that can be dehumidified, control is performed to stop the operation of the dehumidifier, and when the dehumidifier stops, the outside air is sent directly from the air conditioner to the air conditioner without passing through the dehumidifier. Since the bypass duct to supply is provided, the gas burner and fan of the dehumidifier can be stopped, and the energy saving effect is increased.
(C) Since the external air conditioner fan is equipped with an inverter and can control the amount of outside air introduced and the amount of exhaust discharged, it is possible to introduce outside air according to the expected number of people in the air-conditioned space. When the temperature and humidity are low, cooling and dehumidification can be performed only with outside air without performing cooling and dehumidification in the external air conditioner, and energy saving of the air conditioner can be achieved.
本発明の実施の形態を、図に基づいて説明する。
図１は、本発明の除湿機併用型空調装置の最適運転制御システムの作用を説明するフローチャート、図２は本発明の除湿機併用型空調装置の最適運転制御システムを採用した除湿機併用型空調装置の概念図である。
図において１は外調機、２は空調機、３は除湿機、４は運転制御装置、６は給気室、７は排気室、８は除湿室、９は乾燥室、４１は外気温湿度センサ、４２は室内温湿度センサ、５０はバイパスダクト、５１、５２、５３、５４、５５、５６はダクト、５ａ、５ｂはバイパス手段、６１、６２、６３、６４、６５はファン、７１は全熱交換ロータ、７２は除湿ロータ、８１、８２は温水コイル、８３、８４は冷水コイル、９１は加湿器、Ｂはガスバーナー、Ｓは空調対象空間である。
Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a flowchart for explaining the operation of an optimum operation control system of a dehumidifier combined type air conditioner according to the present invention, and FIG. 2 is a dehumidifier combined type air conditioner employing the optimum operation control system of the dehumidifier combined type air conditioner according to the present invention. It is a conceptual diagram of an apparatus.
In the figure, 1 is an external air conditioner, 2 is an air conditioner, 3 is a dehumidifier, 4 is an operation control device, 6 is an air supply chamber, 7 is an exhaust chamber, 8 is a dehumidification chamber, 9 is a drying chamber, and 41 is ambient temperature humidity. Sensor, 42: Indoor temperature / humidity sensor, 50: Bypass duct, 51, 52, 53, 54, 55, 56: Duct, 5a, 5b: Bypass means, 61, 62, 63, 64, 65: Fan, 71: All A heat exchange rotor, 72 is a dehumidification rotor, 81 and 82 are hot water coils, 83 and 84 are cold water coils, 91 is a humidifier, B is a gas burner, and S is a space to be air-conditioned.
まず初めに、本発明の除湿機併用型空調装置の最適運転制御システムを採用した除湿機併用型空調装置について説明する。
本発明における除湿機併用型空調装置は、外調機１、空調機２、除湿機３とで構成される空調装置であり、除湿機３の運転の作動・停止の制御が可能なものであれば採用できる運転制御システムである。
本発明における除湿機併用型空調装置の一例としては、図２に示すように、
導入された外気と、空調対象空間Ｓからの還気の一部である排気とを全熱交換して前記外気の冷却、除湿、又は加熱、加湿を行う外調機１と、前記外調機１から送給された外気を除湿する除湿機３と、前記除湿機３で除湿された外気と外調機１から直接送給された外気と空調対象空間Ｓからの還気との３者の混合空気、あるいは外調機１から直接送給された外気と空調対象空間Ｓからの還気との混合空気を冷却、又は加熱、加湿して前記空調対象空間Ｓに処理空気として送給する空調機２とからなる除湿機併用型空調装置にあって、前記導入された外気、又は外調機１で冷却、除湿された外気の湿度が空調に適した湿度以下であって、前記除湿機３を作動しなくても事足りる場合に、前記外気を除湿機３を経ることなく外調機１から空調機２に直接送給するために、前記外調機１と空調機２との間にバイパスダクト５０を備えている。
そして、前記外調機１は、そのハウジング内の仕切壁によって外気を導入する給気室６と空調対象空間Ｓからの還気の一部である排気を導入する排気室７とに２分されており、その給気室６と排気室７とに跨って前記外気と排気間の全熱交換を行う全熱交換ロータ７１が配設され、前記給気室６には外気を導入し給気室６内に気流を起こすファン６１と、前記全熱交換ロータ７１によって熱交換された外気を加熱する温水コイル８１、及び冷却する冷水コイル８３が、また前記排気室７には前記全熱交換ロータ７１で熱交換された排気を外部に排出するファン６２が備えられている。
さらに、前記外調機１の全熱交換ロータ７１には導入された外気と空調対象空間Ｓからの還気の一部である排気との間での熱交換を必要としない場合に、全熱交換ロータ７１をバイパスして外気を導入し排気を排出するバイパス手段５ａ、５ｂが備えられ、また、前記外調機１のファン６１、６２にはインバータが備えられ、外気の導入風量、及び排気の排出風量を制御可能にしている。
First, a dehumidifier combined type air conditioner adopting the optimum operation control system of the dehumidifier combined type air conditioner of the present invention will be described.
The dehumidifier combined type air conditioner in the present invention is an air conditioner composed of the external air conditioner 1, the air conditioner 2, and the dehumidifier 3, and can control the operation / stop of the operation of the dehumidifier 3. This is an operation control system that can be used.
As an example of the dehumidifier combined type air conditioner in the present invention, as shown in FIG.
The external air conditioner 1 that performs total heat exchange between the introduced outside air and the exhaust gas that is part of the return air from the air conditioning target space S to cool, dehumidify, heat, or humidify the outside air, and the external air conditioner A dehumidifier 3 that dehumidifies the outside air supplied from 1, the outside air dehumidified by the dehumidifier 3, the outside air directly supplied from the external conditioner 1, and the return air from the air-conditioning target space S. Air conditioning that mixes the mixed air or the mixed air of the outside air directly supplied from the external air conditioner 1 and the return air from the air-conditioning target space S, and supplies the air-conditioning target space S as processing air by cooling, heating, or humidification A dehumidifier combined type air conditioner comprising the air conditioner 2, wherein the humidity of the introduced outside air or the outside air cooled and dehumidified by the air conditioner 1 is equal to or less than a humidity suitable for air conditioning, and the dehumidifier 3 When it is sufficient even if it does not operate, the outside air is not passed through the dehumidifier 3 from the external air conditioner 1 to the air conditioner 2. To direct feeding, and a bypass duct 50 between the outer conditioner 1 and the air conditioner 2.
The external air conditioner 1 is divided into an air supply chamber 6 that introduces outside air and an exhaust chamber 7 that introduces exhaust gas that is part of the return air from the air conditioning target space S by a partition wall in the housing. A total heat exchanging rotor 71 for exchanging total heat between the outside air and the exhaust gas is disposed across the air supply chamber 6 and the exhaust chamber 7, and external air is introduced into the air supply chamber 6 to supply air. A fan 61 that generates an air flow in the chamber 6, a hot water coil 81 that heats the outside air heat-exchanged by the total heat exchange rotor 71, and a cold water coil 83 that cools the exhaust chamber 7, and the total heat exchange rotor A fan 62 is provided for exhausting the exhaust heat exchanged at 71 to the outside.
Further, the total heat exchange rotor 71 of the external air conditioner 1 does not require heat exchange between the introduced outside air and the exhaust gas that is part of the return air from the air-conditioning target space S. Bypass means 5a and 5b for bypassing the replacement rotor 71 to introduce outside air and exhaust the exhaust gas are provided, and the fans 61 and 62 of the external air conditioner 1 are provided with an inverter to introduce the outside air flow rate and exhaust gas. The amount of air discharged can be controlled.
また、前記除湿機３は、そのハウジング内の仕切壁によって、外調機１から送給された外気の除湿を行う除湿室８と別途外部から取り入れた空気を加熱して除湿剤を乾燥させる乾燥室９とに２分されており、前記除湿室８と乾燥室９とに跨って除湿剤使用の除湿ロータ７２が配設され、前記乾燥室９には別途取り入れた空気を加熱するガスバーナーＢ等の加熱手段が、また除湿室８、乾燥室９にはそれぞれ室内に気流を生じさせるファン６３、６４が備えられている。
そして、前記空調機２は、前記除湿機３から送給された処理外気、又は前記バイパスダクト５０を介して外調機１から直接送給された外気と、前記空調対象空間Ｓからの還気との混合空気を冷却する冷水コイル８４及び加熱する温水コイル８２を備えている。
In addition, the dehumidifier 3 is a drying chamber that dries the dehumidifier by heating the dehumidification chamber 8 that performs dehumidification of the outside air supplied from the external air conditioner 1 and air taken from outside by the partition wall in the housing. A dehumidifying rotor 72 using a dehumidifying agent is disposed across the dehumidifying chamber 8 and the drying chamber 9, and the drying chamber 9 is a gas burner B that heats separately introduced air. In addition, the dehumidifying chamber 8 and the drying chamber 9 are provided with fans 63 and 64 for generating an air flow in the chamber, respectively.
And the said air conditioner 2 returns the process outside air sent from the said dehumidifier 3, or the outside air sent directly from the external air conditioner 1 via the said bypass duct 50, and the return air from the said air-conditioning object space S A cold water coil 84 for cooling the mixed air and a hot water coil 82 for heating.
前記外調機１は、そのハウジング内が外気を取り入れるための給気室６と空調対象空間Ｓからの還気の一部を外部に排出するための排気室７とに２分されており、かつ給気室６と排気室７に跨って全熱交換ロータ７１が設けられ、外気と排気の持つ顕熱と潜熱を同時に交換している。そして給気室６にはファン６１によって生じる外気の流れの上流から下流に向けて、外気を加熱する温水コイル８１と外気を一次冷却する冷水コイル８３が、また必要に応じて外気を加湿する加湿器９１が配置され、外気の温湿度の一次調節を行ってダクト５１により除湿機３に送られる。
なお、取り入れられた外気が乾燥していて除湿の必要がなかったり、前記外調機１での除湿によって空調に必要な湿度前後の空気が得られたりして除湿機３を作動しなくても事足りる場合には、それまで前記除湿機３に送給していた外気を外調機１から空調機２に直接送給するためのバイパスダクト５０に送給するよう切り替えられる構成となっている。
そしてまた、前記給気室６と排気室７にはインバーターを付加したファン６１、６２を設け、前記ファン６１、６２の回転数を制御することによって導入する外気量及び外部に排出する排気量の制御を可能としており、少ない入場人員数の場合には外気の導入を抑制して空調対象空間Ｓからの還気の循環利用量を増やし、効率のよい空調が行えるようにしている。
さらに、空調対象空間Ｓにおいて冷却や除湿が必要で、かつ外気の温湿度が室内設定温湿度よりも低く全熱交換ロータ７１での熱交換の必要がない場合には、全熱交換ロータ７１の動作を停止して外気を送給できるようバイパス手段５ａ、５ｂが備えられている。
The external air conditioner 1 is divided into an air supply chamber 6 for taking in outside air and an exhaust chamber 7 for discharging a part of the return air from the air-conditioning target space S to the outside. In addition, a total heat exchange rotor 71 is provided across the air supply chamber 6 and the exhaust chamber 7 to simultaneously exchange sensible heat and latent heat of the outside air and exhaust. A hot water coil 81 that heats the outside air and a cold water coil 83 that primarily cools the outside air from the upstream to the downstream of the flow of the outside air generated by the fan 61 are provided in the air supply chamber 6, and humidification that humidifies the outside air as necessary. A device 91 is disposed, and the temperature and humidity of the outside air are primarily adjusted and sent to the dehumidifier 3 by the duct 51.
In addition, even if the taken-in outside air is dry and there is no need for dehumidification, or air before and after the humidity required for air conditioning is obtained by dehumidification by the external air conditioner 1, the dehumidifier 3 is not operated. In the case where it is sufficient, the outside air that has been supplied to the dehumidifier 3 is switched so as to be supplied to the bypass duct 50 for directly supplying the air conditioner 2 to the air conditioner 2.
Also, the air supply chamber 6 and the exhaust chamber 7 are provided with fans 61 and 62 with inverters added thereto, and the amount of outside air introduced and the amount of exhaust exhausted to the outside are controlled by controlling the rotational speed of the fans 61 and 62. In the case of a small number of visitors, the introduction of outside air is suppressed to increase the circulation usage of the return air from the air conditioning target space S so that efficient air conditioning can be performed.
Furthermore, when cooling or dehumidification is required in the air-conditioning target space S, and the temperature and humidity of the outside air is lower than the indoor set temperature and humidity, there is no need for heat exchange in the total heat exchange rotor 71, the total heat exchange rotor 71 Bypass means 5a and 5b are provided so that the operation can be stopped and the outside air can be supplied.
前記除湿機３は、そのハウジング内の仕切壁によって、外気からダクト５１を介して送給された外気の除湿を行う除湿室８と、別途取り入れた空気を加熱して除湿剤を乾燥させる乾燥室９とに２分されており、前記除湿室８と乾燥室９とに跨ってシリカゲル等の除湿剤を回転させて除湿する除湿ロータ７２が設けられている。 The dehumidifier 3 includes a dehumidifying chamber 8 that dehumidifies the outside air supplied from outside air through the duct 51 by a partition wall in the housing, and a drying chamber that heats separately introduced air to dry the dehumidifying agent. A dehumidifying rotor 72 is provided across the dehumidifying chamber 8 and the drying chamber 9 to rotate the dehumidifying agent such as silica gel to dehumidify it.
本発明の除湿機併用型空調装置の最適運転制御システムは、上記除湿機併用型空調装置の最適運転制御システムである。
なお、本発明における最適運転とは、省エネルギーを達成するのに最適な状態で除湿機併用型空調装置が運転されることであり、本発明は、外気の状況や空調対象空間の状況に合わせて空調装置の運転が無駄なくなされるよう自動的に制御される制御システムである。
The optimum operation control system of the dehumidifier combined type air conditioner of the present invention is the optimum operation control system of the dehumidifier combined type air conditioner.
The optimum operation in the present invention is that the dehumidifier combined type air conditioner is operated in an optimum state to achieve energy saving, and the present invention is adapted to the situation of the outside air and the condition of the air conditioning target space. It is a control system that is automatically controlled so that the operation of the air conditioner is not wasted.
本発明の除湿機併用型空調装置の最適運転制御システムは、空調対象空間Ｓ内に設置され空調対象空間Ｓの室内温湿度を計測する室内温湿度センサ４２と、外気の温湿度を計測する外気温湿度センサ４１によって計測された空調対象空間Ｓの温湿度値及び外気の温湿度値に基づいて、外調機１、空調機２、除湿機３の運転の作動・停止が自動制御される運転制御装置４を備えている。
そして、運転制御装置４は、空調対象空間Ｓの使用想定人数、空調対象空間Ｓの室内設定温湿度値及び前記外気温湿度センサ４１及び空調対象空間Ｓ内の室内温湿度センサ４２の計測値に基づいて、省エネルギーを達成するのに最適な状態となるよう外調機１、空調機２及び除湿機３の運転の作動・停止を自動制御する。
自動制御の一例としては、前記運転制御装置４が、まず最初に空調対象空間Ｓの使用想定人数、室内設定温湿度値から前記空調対象空間Ｓでの除湿負荷を算出する。そして、次に算出された除湿負荷と、外気温湿度センサ４１及び空調対象空間Ｓ内の室内温湿度センサ４２の計測値に基づいて、省エネルギーを達成するのに最適な状態となるよう外調機１、空調機２及び除湿機３の運転の作動・停止を以下のように自動制御する。
制御１．前記除湿負荷が、外調機１及び空調機２の冷却機能によって除湿可能な量を超えた場合、「除湿機運転必要」と判断し、外調機１、空調機２、除湿機３を作動させる。
制御２．前記除湿負荷が、外調機１及び空調機２の冷却機能によって除湿可能な量より少なく、かつ外気の温度と絶対湿度が室内の設定温湿度値の絶対湿度より小さい場合、「除湿機運転不要」「外調機の全熱ロータによる熱交換不要」と判断し、外気を外調機１で熱交換処理することなく空調機２へ直接送給し、外気による空調を優先させるよう外調機１と空調機２を作動させる。
この際、外気の導入風量を変更できるように制御することもできる。
制御３．前記除湿負荷が、外調機１及び空調機２の冷却機能によって除湿可能な量より少なく、かつ外気の温度と絶対湿度が室内の設定温湿度値の絶対湿度を超えている場合、「除湿機運転不要」、「外調機による熱交換必要」と判断し、外調機１を通常運転するように外調機１と空調機２を作動させる。
外調機１の通常運転とは、外気と排気の持つ顕熱と潜熱の交換のために外調機１内の全熱交換ロータ７１の作動や、外気を加熱する温水コイル８１や外気を一次冷却する冷水コイル８３の作動、あるいは必要に応じて外気を加湿する加湿器９１の作動が行われる運転である。
The optimum operation control system of the dehumidifier combined type air conditioner according to the present invention includes an indoor temperature / humidity sensor 42 installed in the air-conditioning target space S and measuring the indoor temperature / humidity of the air-conditioning target space S, and an external temperature / humidity sensor. Operation in which operation / stop of the operation of the external air conditioner 1, the air conditioner 2, and the dehumidifier 3 is automatically controlled based on the temperature / humidity value of the air-conditioning target space S measured by the temperature / humidity sensor 41 and the temperature / humidity value of the outside air. A control device 4 is provided.
Then, the operation control device 4 uses the assumed number of people in the air-conditioning target space S, the indoor set temperature / humidity value of the air-conditioning target space S, and the measured values of the outside air temperature / humidity sensor 41 and the indoor temperature / humidity sensor 42 in the air-conditioning target space S. Based on this, the operation / stop of the operation of the external air conditioner 1, the air conditioner 2, and the dehumidifier 3 is automatically controlled so as to be in an optimum state for achieving energy saving.
As an example of automatic control, the operation control device 4 first calculates the dehumidification load in the air-conditioning target space S from the assumed number of people in the air-conditioning target space S and the indoor set temperature and humidity values. Then, based on the calculated dehumidification load and the measured values of the outside air temperature / humidity sensor 41 and the indoor temperature / humidity sensor 42 in the air conditioning target space S, the external air conditioner is brought into an optimum state for achieving energy saving. 1. The operation / stop of the operation of the air conditioner 2 and the dehumidifier 3 is automatically controlled as follows.
Control 1. When the dehumidifying load exceeds the amount that can be dehumidified by the cooling function of the external air conditioner 1 and the air conditioner 2, it is determined that “dehumidifier operation is necessary” and the external air conditioner 1, the air conditioner 2, and the dehumidifier 3 are activated. Let
Control 2. When the dehumidifying load is less than the amount that can be dehumidified by the cooling function of the external air conditioner 1 and the air conditioner 2, and the temperature and absolute humidity of the outside air are smaller than the absolute humidity of the set temperature and humidity value in the room, “dehumidifier operation not required ”Determine that heat exchange is not required by the full-heat rotor of the external air conditioner”, and supply the outside air directly to the air conditioner 2 without heat exchange treatment by the external air conditioner 1 to prioritize the air conditioning by the external air. 1 and the air conditioner 2 are operated.
At this time, it is also possible to control so that the amount of outside air introduced can be changed.
Control 3. When the dehumidifying load is less than the amount that can be dehumidified by the cooling function of the external air conditioner 1 and the air conditioner 2 and the temperature and absolute humidity of the outside air exceed the absolute humidity of the set temperature and humidity value in the room, It is determined that “operation is not necessary” and “heat exchange by the external air conditioner is necessary”, and the external air conditioner 1 and the air conditioner 2 are operated so that the external air conditioner 1 is normally operated.
The normal operation of the external air conditioner 1 is the operation of the total heat exchanging rotor 71 in the external air conditioner 1 for exchanging sensible heat and latent heat of the external air and exhaust, the hot water coil 81 for heating the external air, and the external air as primary. This is an operation in which the operation of the cooling water coil 83 for cooling or the operation of the humidifier 91 for humidifying the outside air as necessary is performed.
上記、各制御１、２、３は、それぞれ運転制御装置４が、空調対象空間Ｓの使用想定人数から算出された除湿負荷と、前記外気温湿度センサ４１及び空調対象空間Ｓ内の室内温湿度センサ４２の計測値に基づいて、前記空調対象空間Ｓの設定温湿度値の快適な空調環境条件を、より少ない消費エネルギーで維持するのに最適な運転制御である。
なお、上記制御１、２、３は本発明の除湿機併用型空調装置の最適運転制御システムにおける一実施例として挙げたものに過ぎず、除湿機併用型空調装置の設置場所や空調対象空間Ｓの大きさ、使用状況、使用目的、使用している人の平均年齢、あるいは季節等、環境や状況を考慮して、様々な制御パターンを設けることができる。
例えば、制御２において、空調対象空間Ｓの入場人員数が少ない場合には、外気の取り入れ風量を制御し、外気の導入風量を減らすとともに排気量を減らし、空調対象空間Ｓからの還気の再利用率を高め、入場人員数の変動が大きい場合に、効率的な空調ができるようにする制御パターンを別に設定することもできる。
In each of the above controls 1, 2, and 3, the operation control device 4 determines the dehumidification load calculated from the estimated number of people in the air-conditioning target space S, the indoor air temperature and humidity sensor 41, and the indoor temperature and humidity in the air-conditioning target space S. Based on the measurement value of the sensor 42, the operation control is optimal for maintaining the comfortable air conditioning environment condition of the set temperature and humidity value of the air conditioning target space S with less energy consumption.
The above-mentioned controls 1, 2, and 3 are only given as an example in the optimum operation control system of the dehumidifier combined type air conditioner according to the present invention. Various control patterns can be provided in consideration of the environment and conditions, such as the size, usage status, usage purpose, average age of the user, or season.
For example, in Control 2, when the number of persons entering the air-conditioning target space S is small, the intake air volume of outside air is controlled to reduce the introduction air volume of the outside air and the exhaust air volume so that the return air from the air-conditioning target space S can be restored. A control pattern that enables efficient air conditioning when the utilization rate is increased and the number of admissions varies greatly can be set separately.
本発明の除湿機併用空調の最適運転制御システムは、上記のように、外気温湿度センサ４１及び空調対象空間内の室内温湿度センサ４２で計測された計測値である温湿度値に基づいて、省エネルギーを達成するのに最適な運転状態となるよう外調機１、空調機２、除湿機３を自動制御する運転制御装置４が備えられている。
前記外気温湿度センサ４１は、外気の温度、相対湿度等、室内温湿度センサ４２は、室内の温度、相対湿度等、空調に必要な情報を計測し、運転制御装置４に計測値を送る。
前記外気温湿度センサ４１、室内温湿度センサ４２は、いずれも１個又は複数個設置してもよく、また室内温湿度センサ４２は、空調対象空間Ｓ内に設置しても、空調対象空間Ｓに配置される空調機２の還気ダクト５４に備えてもよい。
また、前記運転制御装置４は、除湿機併用型空調装置を構成する外調機１、空調機２、除湿機３との間に、これら構成機器の作動・停止を制御するための制御回線を備えている。
As described above, the optimum operation control system of the dehumidifier combined air-conditioning system of the present invention is based on the temperature and humidity value which is a measurement value measured by the outside temperature and humidity sensor 41 and the indoor temperature and humidity sensor 42 in the air conditioning target space. An operation control device 4 that automatically controls the external air conditioner 1, the air conditioner 2, and the dehumidifier 3 is provided so as to be in an optimum operation state for achieving energy saving.
The outside air temperature / humidity sensor 41 measures information necessary for air conditioning, such as the temperature and relative humidity of the outside air, and the indoor temperature / humidity sensor 42 sends the measurement value to the operation control device 4.
One or a plurality of the outside temperature / humidity sensor 41 and the indoor temperature / humidity sensor 42 may be installed, and the indoor temperature / humidity sensor 42 may be installed in the air conditioning target space S or the air conditioning target space S. You may provide in the return air duct 54 of the air conditioner 2 arrange | positioned.
The operation control device 4 has a control line for controlling the operation / stop of these components between the external air conditioner 1, the air conditioner 2, and the dehumidifier 3 constituting the dehumidifier combined type air conditioner. I have.
以下、図１のフローチャートに基づいて、本発明の除湿機併用型空調装置の最適運転制御システムの制御作用を説明する。なお、図１では外調機１、及び空調機２での除湿可能な量を除湿量と記す。
まずステップ１（Ｓ１）では、運転制御装置４に空調対象空間Ｓの使用想定人員、空調対象空間Ｓの室内設定温湿度値及び、外気温湿度センサ４１の計測値である外気温度、相対湿度が入力される。この際外気温湿度センサ４１と運転制御装置４との間に外気温湿度センサ４１の計測値を伝送する信号回線を設けて、外気温湿度センサ４１の計測値を随時運転制御装置４に自動入力されるようにしておくことにより、外気の温湿度の変化に素早く対応でき、無駄のない運転制御が可能となる。
ステップ２（Ｓ２）では、前記入力された空調対象空間Ｓの使用想定人員、空調対象空間Ｓの室内設定温湿度値、及び外気温湿度センサ４１の計測値に基づいて、空調対象空間Ｓでの除湿負荷、外調機１及び空調機２での除湿可能な量（除湿量）、温湿度値の低い導入外気による外冷除湿量が運転制御装置４において算出される。この際、外気のエンタルピと露点温度、空調対象空間Ｓの室内設定エンタルピと露点温度など、空調に関する情報を算出しておくことが望ましい。
ステップ３（Ｓ３）では、ステップ２で算出された空調対象空間Ｓでの除湿負荷と、外調機１及び空調機２での除湿量とを比較し、前記除湿負荷が前記外調機１及び空調機２での除湿量より多い場合（図においてはＮＯの場合）には、運転制御装置４が「除湿機運転必要」と判断して外調機１、空調機２、除湿機３を作動させる「制御１」を選択し、各装置を作動させる。
すなわち、外気の湿度が空調に適した湿度（設定湿度）より高く、外調機１や空調機２による除湿量では空調に適した湿度にならない場合に除湿機３を作動させて空調に適した湿度まで除湿させる前記「制御１」を選択し、運転制御装置が外調機１、空調機２、除湿機３のすべてを作動するように制御する。
Hereinafter, based on the flowchart of FIG. 1, the control action of the optimum operation control system of the dehumidifier combined type air conditioner of the present invention will be described. In FIG. 1, the amount that can be dehumidified by the external air conditioner 1 and the air conditioner 2 is referred to as a dehumidification amount.
First, in step 1 (S1), the operation control device 4 includes the assumed use personnel of the air-conditioning target space S, the indoor set temperature / humidity value of the air-conditioning target space S, and the outside air temperature and relative humidity which are measured values of the outside air temperature / humidity sensor 41. Entered. At this time, a signal line for transmitting the measurement value of the outside air temperature / humidity sensor 41 is provided between the outside air temperature / humidity sensor 41 and the operation control device 4, and the measurement value of the outside air temperature / humidity sensor 41 is automatically input to the operation control device 4 as needed. By doing so, it is possible to respond quickly to changes in the temperature and humidity of the outside air, and it is possible to perform operation control without waste.
In step 2 (S2), based on the input assumed personnel of the air-conditioning target space S, the indoor temperature and humidity values of the air-conditioning target space S, and the measured value of the outside air temperature / humidity sensor 41, The operation control device 4 calculates the dehumidification load, the amount of dehumidification (dehumidification amount) in the external air conditioner 1 and the air conditioner 2, and the external cooling dehumidification amount due to the introduced outside air having a low temperature and humidity value. At this time, it is desirable to calculate information related to air conditioning such as the enthalpy and dew point temperature of the outside air and the indoor setting enthalpy and dew point temperature of the air conditioning target space S.
In step 3 (S3), the dehumidification load in the air-conditioning target space S calculated in step 2 is compared with the dehumidification amounts in the external air conditioner 1 and the air conditioner 2, and the dehumidification load is determined in the external air conditioner 1 and When the amount of dehumidification is greater than that of the air conditioner 2 (in the case of NO in the figure), the operation control device 4 judges that “dehumidifier operation is necessary” and activates the external air conditioner 1, the air conditioner 2, and the dehumidifier 3 Select “Control 1” to activate each device.
That is, when the humidity of the outside air is higher than the humidity suitable for air conditioning (set humidity) and the dehumidification amount by the external air conditioner 1 or the air conditioner 2 does not provide the humidity suitable for air conditioning, the dehumidifier 3 is operated to be suitable for air conditioning. The “control 1” for dehumidifying the humidity is selected, and the operation control device controls the external air conditioner 1, the air conditioner 2, and the dehumidifier 3 to operate.
また、ステップ３（Ｓ３）で前記除湿負荷と外調機１及び空調機２での除湿量とを比較し、前記除湿負荷が前記外調機１及び空調機２での除湿量より少ない場合（図においてはＹＥＳの場合）には、「除湿機運転不要」と判断し、除湿機３の作動を停止する。
これは、例えば、外気湿度が空調に適した湿度より低く、外調機１や空調機２による除湿によって空調に適した湿度（設定湿度）が得られる場合には、除湿機３を停止し、導入外気を外調機１と空調機２の間に配設されたバイパスダクト５０に送給するように切り替えて、除湿機３を経ることなく外調機１から空調機２に直接送給するように制御する。
これによって、除湿機３のファン６３、６４の運転とガスバーナーへのガスの供給が不要となり省エネルギー化が図られることになる。
Further, in step 3 (S3), the dehumidifying load is compared with the dehumidifying amount in the external air conditioner 1 and the air conditioner 2, and the dehumidifying load is smaller than the dehumidifying amount in the external air conditioner 1 and the air conditioner 2 ( In the case of YES in the figure, it is determined that “dehumidifier operation is not required” and the operation of the dehumidifier 3 is stopped.
For example, when the outside air humidity is lower than the humidity suitable for air conditioning, and the humidity (set humidity) suitable for air conditioning is obtained by dehumidification by the external air conditioner 1 or the air conditioner 2, the dehumidifier 3 is stopped, The introduced outside air is switched to be fed to the bypass duct 50 disposed between the external air conditioner 1 and the air conditioner 2, and directly fed from the external air conditioner 1 to the air conditioner 2 without passing through the dehumidifier 3. To control.
As a result, the operation of the fans 63 and 64 of the dehumidifier 3 and the supply of gas to the gas burner are not required, thereby saving energy.
ステップ４（Ｓ４）、ステップ５（Ｓ５）、ステップ６（Ｓ６）は、ステップ３で、「除湿機運転不要」と判断された場合に、外気の温湿度値が室内設定温湿度値より低いか高いかによって外調機１の動作を選択する制御ステップであって、ステップ４はステップ２で算出された外気エンタルピと室内設定エンタルピとを比較して外気エンタルピが室内エンタルピより大きいかどうか、ステップ５では外気の露点の温度が空調対象空間Ｓ内の露点温度より大きいかどうか、ステップ６では空調対象空間Ｓでの除湿負荷が導入した寒冷な外気による除湿量より多いかどうかを判断し、そのいずれかで外気の方が大きい又は多いとされた場合に、外調機１の冷却除湿機能を作動する「制御３」を、また、いずれもが小さい又は少ないとされた場合には、外調機の全熱交換ロータを停止する「制御２」を選択する。
例えば、空調対象空間Ｓにおいて冷却や除湿が必要な場合で、外気の温湿度が室内設定温湿度より低いときには、「制御２」により外調機の全熱交換ロータを停止し、外気を直接空調機２を介して空調対象空間Ｓに送給するよう制御される。
In step 4 (S4), step 5 (S5), and step 6 (S6), if it is determined in step 3 that "dehumidifier operation is not required", is the temperature and humidity value of the outside air lower than the indoor set temperature and humidity value? Step 4 is a control step for selecting the operation of the external air conditioner 1 depending on whether it is high. Step 4 compares the outside air enthalpy calculated in Step 2 with the room setting enthalpy to determine whether the outside air enthalpy is larger than the room enthalpy. In step 6, it is determined whether or not the dew point temperature of the outside air is higher than the dew point temperature in the air conditioned space S. In step 6, it is determined whether or not the dehumidifying load in the air conditioned space S is greater than the dehumidifying amount by the cold outside air introduced. However, when the outside air is larger or larger, “Control 3” that activates the cooling and dehumidifying function of the external air conditioner 1 is activated. Selects "Control 2" for stopping the total heat exchange rotor outer conditioner.
For example, when cooling or dehumidification is required in the air conditioning target space S, and the temperature and humidity of the outside air is lower than the indoor set temperature and humidity, the total heat exchange rotor of the external air conditioner is stopped by “control 2” and the outside air is directly air-conditioned. It is controlled so as to be fed to the air conditioning target space S via the machine 2.
本発明の除湿機併用型空調装置の最適運転制御システムは、運転制御装置４を備えることによって、空調装置を構成する外調機１、空調機２、除湿機３を、空調対象空間Ｓの使用想定人数、空調対象空間Ｓの設定温湿度値、外気温湿度センサ４１及び室内温湿度センサ４２の計測値に基づいて、上記「制御１」、「制御２」、「制御３」の各運転状態を選択して、より少ないエネルギーで、前記設定温湿度値の空調環境を維持することを可能にしている。 The optimum operation control system of the dehumidifier combined type air conditioner of the present invention is provided with the operation control device 4 so that the external air conditioner 1, the air conditioner 2, and the dehumidifier 3 constituting the air conditioner are used in the air conditioning target space S. Based on the assumed number of persons, the set temperature / humidity value of the air-conditioning target space S, and the measured values of the outside air temperature / humidity sensor 41 and the indoor temperature / humidity sensor 42, each of the operation states of "Control 1", "Control 2", and "Control 3" This makes it possible to maintain the air conditioning environment of the set temperature and humidity value with less energy.
１： 外調機
２： 空調機
３： 除湿機
４： 運転制御装置
６： 給気室
７： 排気室
８： 除湿室
９： 乾燥室
４１：外気温湿度センサ
４２：室内温湿度センサ
５０：バイパスダクト
５１、５２、５３、５４、５５、５６：ダクト
５ａ、５ｂ：バイパス手段
６１、６２、６３、６４、６５：ファン
７１：全熱交換ロータ
７２：除湿ロータ
８１、８２：温水コイル
８３、８４：冷水コイル
９１：加湿器
Ｂ： ガスバーナー
Ｓ： 空調対象空間
1: External air conditioner 2: Air conditioner 3: Dehumidifier 4: Operation control device 6: Air supply chamber 7: Exhaust chamber 8: Dehumidification chamber 9: Drying chamber 41: Outside temperature / humidity sensor 42: Indoor temperature / humidity sensor 50: Bypass Duct 51, 52, 53, 54, 55, 56: Duct 5a, 5b: Bypass means 61, 62, 63, 64, 65: Fan 71: Total heat exchange rotor 72: Dehumidification rotor 81, 82: Hot water coil 83, 84 : Cold water coil 91: Humidifier B: Gas burner S: Space to be air-conditioned
Claims (4)
前記外調機１から送給された外気を除湿する除湿機３と、
前記除湿機３で除湿された外気と外調機１から直接送給された外気と空調対象空間Ｓからの還気との３者の混合空気、あるいは外調機１から直接送給された外気と空調対象空間Ｓからの還気との混合空気を冷却、除湿又は加熱、加湿して前記空調対象空間Ｓに処理空気として送給する空調機２とからなり、
かつ前記導入された外気、又は外調機１で冷却、除湿された外気の湿度が空調に適した湿度以下であって、前記除湿機３を作動しなくても事足りる場合に、前記外気を除湿機３を経ることなく外調機１から空調機２に直接送給するために、前記外調機１と空調機２との間にバイパスダクト５０を備えてなる除湿機併用型空調装置に係る空調システムにおいて、
外気温湿度及び、使用想定人数から空調対象空間Ｓでの除湿負荷を算出し、かつ、前記除湿負荷と外調機１及び空調機２の除湿能力の比較を行って、設定された空調対象空間Ｓの室内温湿度を、省エネルギーで達成するよう、計測された空調対象空間Ｓの温湿度値及び外気の温湿度値に基づいて、外調機１、空調機２及び除湿機３の運転の作動・停止を自動制御するものであって、
（１）除湿負荷が、外調機１及び空調機２の冷却機能によって除湿可能な量を超えた場合には、「除湿器運転必要」と判断して外調機１、空調機２、除湿機３を作動させる「制御１」を行い、
（２）除湿負荷が、外調機１及び空調機２の冷却機能によって除湿可能な量より少なく、かつ外気の温度と絶対湿度が前記空調環境条件として入力された室内設定温湿度値の絶対湿度より小さい場合には、「除湿機運転不要」「外調機の全熱交換ロータでの熱交換不要」と判断して、外気を外調機１で熱交換することなくバイパスダクト５０を介して空調機２へ直接送給し、外気による空調を優先させるよう外調機１と空調機２を作動させる「制御２」を行い、
（３）除湿負荷が、外調機１及び空調機２の冷却機能によって除湿可能な量より少なく、かつ外気の温度と絶対湿度が前記空調環境条件として入力された室内設定温湿度値の絶対湿度を超えている場合には、「除湿機運転不要」「外調機による熱交換必要」と判断して外調機１の全熱交換ロータ７１及び冷水コイル８３とを運転し、冷却された外気を、バイパスダクト５０を介して外調機１から空調機２に直接送給する「制御３」を行う
よう自動制御するよう構成されてなることを特徴とする除湿機併用型空調装置の最適運転制御システム。 Total heat exchange rotor 71 that cools, dehumidifies, or heats and humidifies the outside air by totally exchanging the introduced outside air and the exhaust gas that is part of the return air from the air-conditioning target space, and cold water that is a cooling function An external air conditioner 1 including a coil;
A dehumidifier 3 for dehumidifying the outside air supplied from the external air conditioner 1;
Three-way mixed air of outside air dehumidified by the dehumidifier 3 and outside air directly supplied from the outside air conditioner 1 and return air from the air conditioning target space S, or outside air directly supplied from the outside air conditioner 1 And an air conditioner 2 that cools, dehumidifies, heats, or humidifies the mixed air of the return air from the air-conditioning target space S and supplies the air to the air-conditioning target space S as processing air.
And when the humidity of the introduced outside air or the outside air cooled and dehumidified by the air conditioner 1 is not more than the humidity suitable for air conditioning, and it is not necessary to operate the dehumidifier 3, the outside air is dehumidified. A dehumidifier combined type air conditioner comprising a bypass duct 50 between the external air conditioner 1 and the air conditioner 2 in order to directly feed the air conditioner 1 to the air conditioner 2 without passing through the air conditioner 3. In the air conditioning system,
The dehumidifying load in the air-conditioning target space S is calculated from the outside air temperature humidity and the assumed number of users, and the dehumidifying load is compared with the dehumidifying capacity of the external air conditioner 1 and the air conditioner 2 to set the air-conditioning target space. Operation of the external air conditioner 1, the air conditioner 2 and the dehumidifier 3 based on the measured temperature and humidity value of the air-conditioning target space S and the temperature and humidity value of the outside air so that the indoor temperature and humidity of S can be achieved with energy saving・ Automatically controls stop,
(1) When the dehumidifying load exceeds the amount that can be dehumidified by the cooling function of the external air conditioner 1 and the air conditioner 2, it is determined that “dehumidifier operation is necessary” and the external air conditioner 1, air conditioner 2, dehumidifier Perform “Control 1” to operate machine 3,
(2) The absolute humidity of the indoor set temperature / humidity value in which the dehumidifying load is less than the amount that can be dehumidified by the cooling function of the external air conditioner 1 and the air conditioner 2 and the temperature and absolute humidity of the outside air are input as the air conditioning environment conditions. In the case of being smaller, it is judged that “dehumidifier operation is not required” and “heat exchange is not required in the total heat exchange rotor of the external conditioner”, and the outside air is not exchanged in the external conditioner 1 via the bypass duct 50. Performs “Control 2” to operate the external air conditioner 1 and the air conditioner 2 so as to give priority to the air-conditioning by the outside air.
(3) The absolute humidity of the indoor set temperature / humidity value in which the dehumidifying load is less than the amount that can be dehumidified by the cooling function of the external air conditioner 1 and the air conditioner 2 and the temperature and absolute humidity of the outside air are input as the air conditioning environment conditions Is exceeded, it is determined that “dehumidifier operation is not necessary” and “heat exchange by the external air conditioner is necessary”, and the total heat exchanging rotor 71 and the cold water coil 83 of the external air conditioner 1 are operated to cool the outside air. Is automatically controlled so as to perform “control 3” in which air is directly supplied from the external air conditioner 1 to the air conditioner 2 through the bypass duct 50. Control system.
外気温湿度から算出された外気エンタルピと、室内設定温湿度から算出された室内設定エンタルピとを比較して外気エンタルピが室内設定エンタルピより大きい場合に「制御３」へ進み、
外気温湿度から算出された外気露点温度と、室内設定温湿度から算出された室内設定露点温度とを比較して外気露点温度が室内設定露点温度より大きい場合に「制御３」に進み、外気温湿度から算出される寒冷な外気による除湿量と、使用想定人数から算出した空調対象空間Ｓでの除湿負荷とを比較して除湿負荷が寒冷な外気による除湿量より大きい場合に「制御３」に進み、
それ以外の場合は「制御２」に進む
ことを特徴とする請求項１に記載の除湿機併用型空調装置の最適運転制御システム。 When the dehumidifying load is less than the amount that can be dehumidified by the cooling function of the external air conditioner 1 and the air conditioner 2, as a control calculation for selecting the operation of the total heat exchange rotor 71 of the external air conditioner 1,
Comparing the outside air enthalpy calculated from the outside temperature and humidity with the inside setting enthalpy calculated from the indoor set temperature and humidity, if the outside air enthalpy is larger than the indoor set enthalpy, proceed to “Control 3”.
The outside dew point temperature calculated from the outside air temperature humidity is compared with the indoor set dew point temperature calculated from the indoor set temperature and humidity, and if the outside air dew point temperature is higher than the indoor set dew point temperature, the process proceeds to “Control 3”. When the dehumidification amount by the cold outside air calculated from the humidity and the dehumidification load in the air-conditioning target space S calculated from the assumed number of users are compared, and the dehumidification load is larger than the dehumidification amount by the cold outside air, “Control 3” is set. Proceed,
In other cases, the control proceeds to "Control 2". The optimum operation control system for the dehumidifier combined use air conditioner according to claim 1 , wherein
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| CN105823147B (en) * | 2016-05-20 | 2019-01-15 | 际高贝卡科技有限公司 | A kind of step combined type dehumidification system |
| CN107702239B (en) * | 2017-11-10 | 2023-08-01 | 际高科技有限公司 | Energy-storage dehumidifying air conditioning system capable of independently adjusting temperature and humidity and control method thereof |
| JP7469025B2 (en) * | 2019-11-12 | 2024-04-16 | 荏原実業株式会社 | Air conditioners and air conditioning systems |
| JP7445855B1 (en) | 2022-08-22 | 2024-03-08 | 三菱重工冷熱株式会社 | Air conditioning unit, control device for air conditioning unit, and control method for air conditioning equipment |
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