JP2010060278A

JP2010060278A - Refrigerating cycle apparatus

Info

Publication number: JP2010060278A
Application number: JP2009250392A
Authority: JP
Inventors: Jiro Okajima; 次郎岡島; Hitoshi Iijima; 等飯嶋; Takuya Suganami; 拓也菅波
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2009-10-30
Filing date: 2009-10-30
Publication date: 2010-03-18
Anticipated expiration: 2020-08-08
Also published as: JP4990339B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerating cycle apparatus, attaining compatibility between amenity and energy saving. <P>SOLUTION: This refrigerating cycle apparatus includes: an indoor temperature detecting means 31; an indoor humidity detecting means 32; an evaporating temperature detecting means 33; a spray means 1 for spraying water to a condenser; a water spray quantity computing means 26 for computing a water spray quantity to the condenser 12; and a water spray control means 27 for controlling the water spray quantity of the water spray means 1 to reach the water spray quantity of the water spray quantity computing means 26. The water spray quantity computing means 26 computes the water spray quantity to the condenser 12 based on the indoor temperature of the indoor temperature detecting means 31, the indoor humidity of the indoor humidity detecting means 32 and the evaporating temperature of the evaporating temperature detecting means 33. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

この発明は、空気調和機、冷凍機等の冷媒凝縮器に散水して熱交換効率を向上させる冷凍サイクル装置に関する。 The present invention relates to a refrigeration cycle apparatus that improves heat exchange efficiency by watering a refrigerant condenser such as an air conditioner or a refrigerator.

図１９は、従来の冷凍サイクル装置の構成図であり、車両空調用の散水設備を示す（特許文献１参照）。
図において、冷凍サイクル５１がコンデンサ５２、サブコンデンサ５３、膨張弁５４、エバポレータ５５、コンプレッサ５６で構成されている。エバポレータ５５の下方には、エバポレータ５５に付着した凝縮水を受ける容器５７と、この容器５７内の凝縮水をコンデンサ５２またはサブコンデンサ５３もしくは両方に放出するノズル５８を備えている。 FIG. 19 is a configuration diagram of a conventional refrigeration cycle apparatus and shows a watering facility for vehicle air conditioning (see Patent Document 1).
In the figure, a refrigeration cycle 51 includes a condenser 52, a sub condenser 53, an expansion valve 54, an evaporator 55, and a compressor 56. Below the evaporator 55, a container 57 for receiving condensed water adhering to the evaporator 55 and a nozzle 58 for discharging the condensed water in the container 57 to the condenser 52 or the sub condenser 53 or both are provided.

さらに、冷凍サイクル５１内の圧力を測定する圧力センサ５９と、温度を測定する車室内温度センサ６０を備え、圧力センサ５９の設置場所はサブコンデンサ５３の出口に取り付けてある。そこで、圧力センサ５９にて検出された圧力信号と、車室内温度センサ６０にて検出された温度信号とが、制御装置６１に入力される。そして、この制御装置６１にて、ポンプ６２によりコンデンサ前面の容器６３内に供給する凝縮水の供給量を制御するための供給量の信号を送出する。 Further, a pressure sensor 59 for measuring the pressure in the refrigeration cycle 51 and a vehicle interior temperature sensor 60 for measuring the temperature are provided, and the installation location of the pressure sensor 59 is attached to the outlet of the sub capacitor 53. Therefore, the pressure signal detected by the pressure sensor 59 and the temperature signal detected by the vehicle interior temperature sensor 60 are input to the control device 61. The control device 61 sends a supply amount signal for controlling the supply amount of the condensed water supplied into the container 63 in front of the capacitor by the pump 62.

特開平７−４０７３２号公報Japanese Patent Laid-Open No. 7-40732

上記のような従来の冷凍サイクル装置では、圧力信号や温度信号に基づき凝縮水へ凝縮水を放出するため、圧力や温度に変化が生じた場合は、放出動作の応答遅れが生じてしまうという問題点があった。
また、凝縮水のみでは凝縮器の冷却効果はさほど得られず、また、室内環境の快適性を考慮していないため快適性を阻害することがあるという問題点があった。 In the conventional refrigeration cycle apparatus as described above, the condensed water is discharged to the condensed water based on the pressure signal and the temperature signal, so that when the pressure or temperature changes, a response delay of the discharging operation occurs. There was a point.
In addition, there is a problem that the cooling effect of the condenser cannot be obtained with only the condensed water, and the comfort may be hindered because the comfort of the indoor environment is not taken into consideration.

この発明は、上述のような課題を解決するためになされたもので、応答遅れが生じることなく凝縮器へ散水を行い、空調機の消費電力を削減するとともに、水を無駄にすることなく効率的に散水を行い、被空調域の室内温度、室内湿度の制御も行い、快適性と省エネルギーを両立する冷凍サイクル装置を提供することである。 The present invention has been made to solve the above-described problems. Water is sprayed to the condenser without causing a response delay, reducing the power consumption of the air conditioner and reducing the efficiency without wasting water. It is to provide a refrigeration cycle apparatus that performs both watering and control of the indoor temperature and humidity of the air-conditioned area to achieve both comfort and energy saving.

この発明に係る冷凍サイクル装置は、凝縮器へ散水する散水手段と、外気温度を検出する外気温度検出手段と、外気温度に基づいて凝縮器への散水量を演算する散水量演算手段と、この散水量演算手段による散水量になるように、散水手段による散水量を制御する散水制御手段とを備え、外気温度検出手段により検出された外気温度に基づいて、外気温度の未来値を予測し、この外気温度の予測値に基づいて散水量演算手段により散水量を演算するものである。 The refrigeration cycle apparatus according to the present invention includes a sprinkling means for sprinkling water to the condenser, an outside air temperature detecting means for detecting the outside air temperature, a water sprinkling amount calculating means for calculating a water sprinkling amount to the condenser based on the outside air temperature, A watering control means for controlling the watering amount by the watering means so as to be the watering amount by the watering amount calculating means, and predicting the future value of the outside air temperature based on the outside air temperature detected by the outside air temperature detecting means, The water spray amount is calculated by the water spray amount calculating means based on the predicted value of the outside air temperature.

また、凝縮器へ散水する散水手段と、外気温度を検出する外気温度検出手段と、外気湿度を検出する外気湿度検出手段と、外気温度および外気湿度に基づいて凝縮器への散水量を演算する散水量演算手段と、この散水量演算手段による散水量になるように、散水手段による散水量を制御する散水制御手段とを備え、外気温度検出手段および外気湿度検出手段により検出された外気温度および外気湿度に基づいて、外気温度および外気湿度の未来値を予測し、この外気温度および外気湿度の予測値に基づいて散水量演算手段により散水量を演算するものである。 Further, watering means for watering the condenser, outside air temperature detecting means for detecting the outside air temperature, outside air humidity detecting means for detecting the outside air humidity, and calculating the amount of water sprayed to the condenser based on the outside air temperature and the outside air humidity. A sprinkling amount calculating means and a sprinkling control means for controlling the sprinkling amount by the sprinkling means so as to obtain a sprinkling amount by the sprinkling amount calculating means, and the outside air temperature detected by the outside air temperature detecting means and the outside air humidity detecting means and A future value of the outside air temperature and the outside air humidity is predicted based on the outside air humidity, and a water spray amount is calculated by the water spray amount calculating means based on the predicted value of the outside air temperature and the outside air humidity.

また、圧縮機の運転容量を制御する運転容量制御手段を備え、運転容量制御手段により検出された運転容量に基づいて、運転容量の未来値を予測し、この運転容量の予測値および外気温度または外気湿度の予測値に基づいて、散水量演算手段により散水量を演算するものである。 In addition, an operating capacity control means for controlling the operating capacity of the compressor is provided, and a future value of the operating capacity is predicted based on the operating capacity detected by the operating capacity control means, and the predicted value of the operating capacity and the outside air temperature or Based on the predicted value of the outside air humidity, the sprinkling amount is calculated by the sprinkling amount calculating means.

さらに、冷凍サイクル装置の消費電力を検出する消費電力検出手段を備え、消費電力検出手段により検出された消費電力に基づいて、消費電力の未来値を予測し、この消費電力の予測値および外気温度または外気湿度の予測値に基づいて、散水量演算手段により散水量を演算するものである。 Furthermore, the power consumption detection means for detecting the power consumption of the refrigeration cycle apparatus is provided, the future value of the power consumption is predicted based on the power consumption detected by the power consumption detection means, and the predicted value of the power consumption and the outside air temperature Alternatively, the water spray amount is calculated by the water spray amount calculation means based on the predicted value of the outside air humidity.

また、冷凍サイクル装置の凝縮温度を検出する凝縮温度検出手段を備え、凝縮温度検出手段により検出された凝縮温度に基づいて、凝縮温度の未来値を予測し、この凝縮温度の予測値および外気温度または外気湿度の予測値に基づいて、散水量演算手段により散水量を演算するものである。 In addition, a condensation temperature detection means for detecting the condensation temperature of the refrigeration cycle apparatus is provided, and a future value of the condensation temperature is predicted based on the condensation temperature detected by the condensation temperature detection means. Alternatively, the water spray amount is calculated by the water spray amount calculation means based on the predicted value of the outside air humidity.

また、冷凍サイクル装置の凝縮圧力を検出する凝縮圧力検出手段を備え、凝縮圧力検出手段により検出された凝縮圧力に基づいて凝縮圧力の未来値を予測し、この凝縮圧力の予測値および外気温度または外気湿度の予測値に基づいて、散水量演算手段により散水量を演算するものである。 In addition, a condensing pressure detecting means for detecting the condensing pressure of the refrigeration cycle apparatus is provided, a future value of the condensing pressure is predicted based on the condensing pressure detected by the condensing pressure detecting means, and the predicted value of the condensing pressure and the outside air temperature or Based on the predicted value of the outside air humidity, the sprinkling amount is calculated by the sprinkling amount calculating means.

また、冷却対象の室内空気の乾球温度を検出する室内温度検出手段と、冷却対象の室内空気の湿度を検出する室内湿度検出手段と、蒸発器の蒸発温度を検知する蒸発温度検出手段と、凝縮器へ散水する散水手段と、凝縮器への散水量を演算する散水量演算手段と、この散水量演算手段による散水量になるように、散水手段による散水量を制御する散水制御手段とを備え、散水量演算手段は、室内温度検出手段による室内温度、室内湿度検出手段による室内湿度、蒸発温度検出手段による蒸発温度に基づいて凝縮器への散水量を演算するものである。 Also, an indoor temperature detecting means for detecting the dry bulb temperature of the indoor air to be cooled, an indoor humidity detecting means for detecting the humidity of the indoor air to be cooled, an evaporation temperature detecting means for detecting the evaporation temperature of the evaporator, Watering means for watering the condenser, watering amount calculating means for calculating the watering amount to the condenser, and watering control means for controlling the watering amount by the watering means so as to be the watering amount by the watering amount calculating means. The sprinkling amount calculation means calculates the sprinkling amount to the condenser based on the room temperature by the room temperature detection means, the room humidity by the room humidity detection means, and the evaporation temperature by the evaporation temperature detection means.

また、蒸発器へ送風する送風機の送風量を制御する蒸発器送風量制御手段または／および凝縮器へ送風する送風機の送風量を制御する凝縮器送風量制御手段を備え、散水量演算手段により演算された散水量に応じて、蒸発器送風量制御手段または／および凝縮器送風量制御手段により、蒸発器または／および凝縮器への送風量を制御するものである。 Further, it is provided with an evaporator air flow rate control means for controlling the air flow rate of the blower that blows air to the evaporator and / or a condenser air flow rate control means for controlling the air flow rate of the air blower that is blown to the condenser, and is calculated by the sprinkling amount calculating means. Depending on the amount of water sprayed, the air flow to the evaporator or / and the condenser is controlled by the evaporator air flow control means or / and the condenser air flow control means.

また、凝縮器へ散水する散水手段と、この散水手段による散水量を制御する散水制御手段と、凝縮器の表面下部に設けられ、凝縮器表面上の水分を検出する第１の水分検出手段と、凝縮器の下方に設けられ、凝縮器表面から流れ落ちる水分を検出する第２の水分検出手段とを備え、散水制御手段により、第１の水分検出手段により水分が検出される状態、かつ、第２の水分検出手段により水分が検出されない状態になるように散水手段による散水量を制御するものである。 In addition, watering means for watering the condenser, watering control means for controlling the amount of water sprayed by the watering means, and a first moisture detection means for detecting water on the condenser surface provided at the lower surface of the condenser. A second moisture detecting means provided below the condenser and detecting moisture flowing down from the condenser surface, wherein the water content is detected by the first moisture detecting means by the watering control means, and the first The amount of water sprayed by the watering means is controlled so that the water is not detected by the water detecting means.

この発明は、以上のように構成されているので、以下に示すような効果を奏する。 Since this invention is comprised as mentioned above, there exists an effect as shown below.

凝縮器へ散水する散水手段と、外気温度を検出する外気温度検出手段と、外気温度に基づいて凝縮器への散水量を演算する散水量演算手段と、この散水量演算手段による散水量になるように、散水手段による散水量を制御する散水制御手段とを備え、外気温度検出手段により検出された外気温度に基づいて、外気温度の未来値を予測し、この外気温度の予測値に基づいて散水量演算手段により散水量を演算するので、凝縮温度の低下による消費電力の低減効果に加え、外気温度に対して水を過不足無く使用することができ、さらに散水動作の応答遅れを補償することができる。 Sprinkling means for sprinkling water to the condenser, outside air temperature detecting means for detecting the outside air temperature, water sprinkling amount calculating means for calculating the water sprinkling amount to the condenser based on the outside air temperature, and the water sprinkling amount by the water sprinkling amount calculating means. And a watering control means for controlling the amount of water sprayed by the watering means, predicting a future value of the outside air temperature based on the outside air temperature detected by the outside air temperature detecting means, and based on the predicted value of the outside air temperature. Since the sprinkling amount is calculated by the sprinkling amount calculation means, in addition to the effect of reducing the power consumption due to the decrease in the condensing temperature, water can be used without excess or deficiency with respect to the outside air temperature, and the response delay of the sprinkling operation is compensated. be able to.

また、凝縮器へ散水する散水手段と、外気温度を検出する外気温度検出手段と、外気湿度を検出する外気湿度検出手段と、外気温度および外気湿度に基づいて凝縮器への散水量を演算する散水量演算手段と、この散水量演算手段による散水量になるように、散水手段による散水量を制御する散水制御手段とを備え、外気温度検出手段および外気湿度検出手段により検出された外気温度および外気湿度に基づいて、外気温度および外気湿度の未来値を予測し、この外気温度および外気湿度の予測値に基づいて散水量演算手段により散水量を演算するので、凝縮温度の低下による消費電力の低減効果に加え、外気温度、外気湿度に対して水を過不足無く使用することができ、さらに散水動作の応答遅れを補償することができる。 Further, watering means for watering the condenser, outside air temperature detecting means for detecting the outside air temperature, outside air humidity detecting means for detecting the outside air humidity, and calculating the amount of water sprayed to the condenser based on the outside air temperature and the outside air humidity. A sprinkling amount calculating means and a sprinkling control means for controlling the sprinkling amount by the sprinkling means so as to obtain a sprinkling amount by the sprinkling amount calculating means, and the outside air temperature detected by the outside air temperature detecting means and the outside air humidity detecting means and Based on the outside air humidity, the future value of the outside air temperature and the outside air humidity are predicted, and the water spray amount is calculated by the water spray amount calculating means based on the predicted value of the outside air temperature and the outside air humidity. In addition to the reduction effect, the water can be used without excess or deficiency with respect to the outside air temperature and the outside air humidity, and further, the response delay of the watering operation can be compensated.

さらに、圧縮機の運転容量を制御する運転容量制御手段を備え、運転容量制御手段により検出された運転容量に基づいて、運転容量の未来値を予測し、この運転容量の予測値および外気温度または外気湿度の予測値に基づいて、散水量演算手段により散水量を演算するので、散水による消費電力の低減効果に加え、運転周波数に対して水を過不足無く使用することができ、さらに散水動作の応答遅れを補償することができる。 In addition, an operating capacity control means for controlling the operating capacity of the compressor is provided, and a future value of the operating capacity is predicted based on the operating capacity detected by the operating capacity control means, and the predicted value of the operating capacity and the outside air temperature or Based on the predicted value of the outside air humidity, the sprinkling amount is calculated by the sprinkling amount calculation means. In addition to the effect of reducing the power consumption due to the sprinkling, water can be used without excess or deficiency with respect to the operating frequency. The response delay can be compensated.

また、冷凍サイクル装置の消費電力を検出する消費電力検出手段を備え、消費電力検出手段により検出された消費電力に基づいて、消費電力の未来値を予測し、この消費電力の予測値および外気温度または外気湿度の予測値に基づいて、散水量演算手段により散水量を演算するので、散水による消費電力の低減効果に加え、消費電力に対して水を過不足無く使用することができ、さらに散水動作の応答遅れを補償することができる。 The power consumption detecting means for detecting the power consumption of the refrigeration cycle apparatus is provided, the future value of the power consumption is predicted based on the power consumption detected by the power consumption detecting means, and the predicted value of the power consumption and the outside temperature Or, based on the predicted value of outside air humidity, the sprinkling amount is calculated by the sprinkling amount calculation means, so that in addition to the effect of reducing the power consumption due to the sprinkling, water can be used without excess or deficiency for the power consumption. The response delay of the operation can be compensated.

また、冷凍サイクル装置の凝縮温度を検出する凝縮温度検出手段を備え、凝縮温度検出手段により検出された凝縮温度に基づいて、凝縮温度の未来値を予測し、この凝縮温度の予測値および外気温度または外気湿度の予測値に基づいて、散水量演算手段により散水量を演算するので、散水による消費電力の低減効果に加え、凝縮温度に対して水を過不足無く使用することができ、さらに散水動作の応答遅れを補償することができる。 In addition, a condensation temperature detection means for detecting the condensation temperature of the refrigeration cycle apparatus is provided, and a future value of the condensation temperature is predicted based on the condensation temperature detected by the condensation temperature detection means. Or, based on the predicted value of outside air humidity, the sprinkling amount is calculated by the sprinkling amount calculation means, so in addition to the effect of reducing power consumption by sprinkling, water can be used without excess or deficiency with respect to the condensation temperature. The response delay of the operation can be compensated.

また、冷凍サイクル装置の凝縮圧力を検出する凝縮圧力検出手段を備え、凝縮圧力検出手段により検出された凝縮圧力に基づいて凝縮圧力の未来値を予測し、この凝縮圧力の予測値および外気温度または外気湿度の予測値に基づいて、散水量演算手段により散水量を演算するので、散水による消費電力の低減効果に加え、凝縮圧力に対して水を過不足無く使用することができ、さらに散水動作の応答遅れを補償することができる。 In addition, a condensing pressure detecting means for detecting the condensing pressure of the refrigeration cycle apparatus is provided, a future value of the condensing pressure is predicted based on the condensing pressure detected by the condensing pressure detecting means, and the predicted value of the condensing pressure and the outside air temperature or Based on the predicted value of outside air humidity, the sprinkling amount is calculated by the sprinkling amount calculation means. In addition to the effect of reducing power consumption due to sprinkling, water can be used without excess or deficiency with respect to the condensing pressure. The response delay can be compensated.

また、冷却対象の室内空気の乾球温度を検出する室内温度検出手段と、冷却対象の室内空気の湿度を検出する室内湿度検出手段と、蒸発器の蒸発温度を検知する蒸発温度検出手段と、凝縮器へ散水する散水手段と、凝縮器への散水量を演算する散水量演算手段と、この散水量演算手段による散水量になるように、散水手段による散水量を制御する散水制御手段とを備え、散水量演算手段は、室内温度検出手段による室内温度、室内湿度検出手段による室内湿度、蒸発温度検出手段による蒸発温度に基づいて凝縮器への散水量を演算するので、散水による電気入力の低減効果に加え、室内温度と室内湿度の制御が可能となり省エネと快適性向上を両立できる。 Also, an indoor temperature detecting means for detecting the dry bulb temperature of the indoor air to be cooled, an indoor humidity detecting means for detecting the humidity of the indoor air to be cooled, an evaporation temperature detecting means for detecting the evaporation temperature of the evaporator, Watering means for watering the condenser, watering amount calculating means for calculating the watering amount to the condenser, and watering control means for controlling the watering amount by the watering means so as to be the watering amount by the watering amount calculating means. The water sprinkling amount calculating means calculates the water sprinkling amount to the condenser based on the indoor temperature by the indoor temperature detecting means, the indoor humidity by the indoor humidity detecting means, and the evaporation temperature by the evaporating temperature detecting means. In addition to the reduction effect, it is possible to control the room temperature and the room humidity, thus achieving both energy saving and comfort improvement.

また、蒸発器へ送風する送風機の送風量を制御する蒸発器送風量制御手段または／および凝縮器へ送風する送風機の送風量を制御する凝縮器送風量制御手段を備え、散水量演算手段により演算された散水量に応じて、蒸発器送風量制御手段または／および凝縮器送風量制御手段により、蒸発器または／および凝縮器への送風量を制御するので、散水による電気入力の低減効果に加え、室内温度と室内湿度の制御が広い温度、湿度範囲で可能となり省エネと快適性向上を両立できる。 Further, it is provided with an evaporator air flow rate control means for controlling the air flow rate of the blower that blows air to the evaporator and / or a condenser air flow rate control means for controlling the air flow rate of the air blower that is blown to the condenser, and is calculated by the sprinkling amount calculating means. In accordance with the amount of water sprayed, the air flow to the evaporator or / and the condenser is controlled by the evaporator air flow control means or / and the condenser air flow control means. The room temperature and humidity can be controlled over a wide temperature and humidity range, and both energy saving and comfort can be achieved.

また、凝縮器へ散水する散水手段と、この散水手段による散水量を制御する散水制御手段と、凝縮器の表面下部に設けられ、凝縮器表面上の水分を検出する第１の水分検出手段と、凝縮器の下方に設けられ、凝縮器表面から流れ落ちる水分を検出する第２の水分検出手段とを備え、散水制御手段により、第１の水分検出手段により水分が検出される状態、かつ、第２の水分検出手段により水分が検出されない状態になるように散水手段による散水量を制御するので、散水による電気入力の低減効果に加え、常に凝縮器が濡れた状態に散水し、無駄に散水することがないので水の節約になる。 In addition, watering means for watering the condenser, watering control means for controlling the amount of water sprayed by the watering means, and a first moisture detection means for detecting water on the condenser surface provided at the lower surface of the condenser. A second moisture detecting means provided below the condenser and detecting moisture flowing down from the condenser surface, wherein the water content is detected by the first moisture detecting means by the watering control means, and the first Since the amount of water sprayed by the watering means is controlled so that the water is not detected by the water detecting means 2, in addition to the effect of reducing the electric input by watering, the condenser is always watered in a wet state and water is sprinkled wastefully. It will save water because it never happens.

この発明の実施の形態１を示す冷凍サイクル装置の構成図である。It is a block diagram of the refrigerating cycle apparatus which shows Embodiment 1 of this invention. この発明の実施の形態１を示す冷凍サイクル装置における外気温度と散水の有無による消費電力の関係を示す図である。It is a figure which shows the relationship of the power consumption by the external temperature in the refrigerating-cycle apparatus which shows Embodiment 1 of this invention, and the presence or absence of watering. この発明の実施の形態１を示す冷凍サイクル装置における外気温度に対して全て有効に使える必要散水量を示す図である。It is a figure which shows the required watering amount which can be effectively used altogether with respect to the outside temperature in the refrigeration cycle apparatus which shows Embodiment 1 of this invention. この発明の実施の形態１を示す冷凍サイクル装置における外気温度の未来値の予測演算を示す図である。It is a figure which shows the prediction calculation of the future value of outside temperature in the refrigerating-cycle apparatus which shows Embodiment 1 of this invention. この発明の実施の形態１を示す冷凍サイクル装置における外気温度による散水量制御を示すフローチャートである。It is a flowchart which shows the sprinkling amount control by the outside temperature in the refrigerating-cycle apparatus which shows Embodiment 1 of this invention. この発明の実施の形態２を示す冷凍サイクル装置における圧縮機運転周波数と必要散水量の関係を示す図である。It is a figure which shows the relationship between the compressor operating frequency and the required watering amount in the refrigerating-cycle apparatus which shows Embodiment 2 of this invention. この発明の実施の形態２を示す冷凍サイクル装置における消費電力と必要散水量の関係を示す図である。It is a figure which shows the relationship between the power consumption and the required watering amount in the refrigerating-cycle apparatus which shows Embodiment 2 of this invention. この発明の実施の形態２を示す冷凍サイクル装置における凝縮温度と必要散水量の関係を示す図である。It is a figure which shows the relationship between the condensation temperature in the refrigerating-cycle apparatus which shows Embodiment 2 of this invention, and a required watering amount. この発明の実施の形態２を示す冷凍サイクル装置における凝縮圧力と必要散水量の関係を示す図である。It is a figure which shows the relationship between the condensation pressure in the refrigerating-cycle apparatus which shows Embodiment 2 of this invention, and required watering amount. この発明の実施の形態２を示す冷凍サイクル装置における外気湿度、外気温度と必要散水量の関係を示す図である。It is a figure which shows the relationship between the external air humidity in the refrigerating-cycle apparatus which shows Embodiment 2 of this invention, external air temperature, and required water spray amount. この発明の実施の形態２を示す冷凍サイクル装置における外気温度、消費電力、外気湿度による散水量制御を示すフローチャートである。It is a flowchart which shows the amount of sprinkling control by the outside temperature, power consumption, and outside air humidity in the refrigerating-cycle apparatus which shows Embodiment 2 of this invention. この発明の実施の形態３を示す冷凍サイクル装置における圧縮機の運転周波数に対する蒸発器の蒸発温度を示す図である。It is a figure which shows the evaporation temperature of the evaporator with respect to the operating frequency of the compressor in the refrigerating-cycle apparatus which shows Embodiment 3 of this invention. この発明の実施の形態３を示す冷凍サイクル装置における圧縮機の運転周波数に対する顕熱比を示す図である。It is a figure which shows the sensible heat ratio with respect to the operating frequency of the compressor in the refrigerating-cycle apparatus which shows Embodiment 3 of this invention. この発明の実施の形態３を示す冷凍サイクル装置における圧縮機の運転周波数に対する蒸発器の吹出温度を示す図である。It is a figure which shows the blowing temperature of the evaporator with respect to the operating frequency of the compressor in the refrigerating-cycle apparatus which shows Embodiment 3 of this invention. この発明の実施の形態３を示す冷凍サイクル装置の空気線図における室内空気状態と目標室内空気状態と目標蒸発温度の関係を示す図である。It is a figure which shows the relationship between the indoor air state in the refrigeration cycle apparatus which shows Embodiment 3 of this invention, a target indoor air state, and target evaporation temperature. この発明の実施の形態３を示す冷凍サイクル装置における室内温度、室内湿度の散水量制御のブロック線図である。It is a block diagram of the amount of sprinkling control of room temperature and room humidity in the refrigerating cycle device showing Embodiment 3 of this invention. この発明の実施の形態４を示す冷凍サイクル装置における制御フローチャートである。It is a control flowchart in the refrigerating-cycle apparatus which shows Embodiment 4 of this invention. この発明の実施の形態５を示す冷凍サイクル装置の散水ユニットと凝縮器の構成図である。It is a block diagram of the watering unit and condenser of the refrigerating-cycle apparatus which shows Embodiment 5 of this invention. 従来の冷凍サイクル装置の構成図である。It is a block diagram of the conventional refrigeration cycle apparatus.

実施の形態１．
図１はこの発明の実施の形態１を示す冷凍サイクル装置の構成図、図２はこの冷凍サイクル装置において、外気温度と散水の有無による消費電力の関係を示す図、図３はこの冷凍サイクル装置において、外気温度に対して全て有効に使える必要散水量を示す図、図４はこの冷凍サイクル装置において、外気温度Toの未来値の予測演算を示すグラフ図、図５はこの冷凍サイクル装置において、外気温度による散水量制御を示すフローチャートである。 Embodiment 1 FIG.
1 is a configuration diagram of a refrigeration cycle apparatus showing Embodiment 1 of the present invention, FIG. 2 is a diagram showing the relationship between the outside air temperature and the power consumption depending on the presence or absence of water spray, and FIG. 3 is this refrigeration cycle apparatus. FIG. 4 is a graph showing a predicted calculation of the future value of the outside air temperature To in this refrigeration cycle apparatus, and FIG. 5 is a graph showing this refrigeration cycle apparatus. It is a flowchart which shows the amount of sprinkling control by outside temperature.

図において、冷凍サイクル装置は、被空調域である室内４内に室内機３が設置され、冷媒配管で室外の室外機２と接続される。室内機３と室外機２より冷凍サイクルが構成され、冷媒を圧縮する圧縮機１１と、凝縮器１２、膨張弁を示す絞り機構１３、蒸発器１４、四方弁１５が冷媒管により連結される。凝縮器１２には凝縮温度検出手段３６、凝縮圧力検出手段３７が設置される。また、室内４内に室内温度検出手段３１と、室内湿度検出手段３２が設置されている。 In the figure, in the refrigeration cycle apparatus, an indoor unit 3 is installed in a room 4 which is an air-conditioned area, and is connected to an outdoor unit 2 outside by a refrigerant pipe. The indoor unit 3 and the outdoor unit 2 constitute a refrigeration cycle, and a compressor 11 that compresses refrigerant, a condenser 12, a throttle mechanism 13 that indicates an expansion valve, an evaporator 14, and a four-way valve 15 are connected by a refrigerant pipe. The condenser 12 is provided with a condensation temperature detection means 36 and a condensation pressure detection means 37. An indoor temperature detecting means 31 and an indoor humidity detecting means 32 are installed in the room 4.

この実施の形態１では、冷房を対象として説明するので、四方弁１５により室内機３内に蒸発器１４、室外機２内に凝縮器１２が設定される。凝縮器１２、蒸発器１４にはそれぞれ凝縮器送風機１６、蒸発器送風機１７が近接して設置される。蒸発器１４には、冷媒の蒸発温度を検出する蒸発温度検出手段３３が設置され、冷凍サイクル装置の運転制御を行う制御器１８の入力側には室内温度検出手段３１、室内湿度検出手段３２、蒸発温度検出手段３３が接続され、出力側には圧縮機１１、蒸発器送風機１７、凝縮器送風機１６が接続される。電源には室外機２の消費電力を検出する消費電力検出手段３８が接続される。 Since the first embodiment will be described for cooling, the four-way valve 15 sets the evaporator 14 in the indoor unit 3 and the condenser 12 in the outdoor unit 2. A condenser blower 16 and an evaporator blower 17 are installed close to the condenser 12 and the evaporator 14, respectively. The evaporator 14 is provided with an evaporation temperature detection means 33 for detecting the evaporation temperature of the refrigerant. On the input side of the controller 18 for controlling the operation of the refrigeration cycle apparatus, an indoor temperature detection means 31, an indoor humidity detection means 32, The evaporation temperature detecting means 33 is connected, and the compressor 11, the evaporator blower 17, and the condenser blower 16 are connected to the output side. A power consumption detecting means 38 for detecting the power consumption of the outdoor unit 2 is connected to the power source.

また、室外機２の凝縮器１２に付随して散水ユニット１が設置される。散水ユニット１は、散水手段を示すスプレーノズル２１、流量調整弁２２、ストレーナ２３が給水口２４を有する水道配管により接続されるとともに、散水制御器２５、外気温度検出手段３４、外気湿度検出手段３５から構成される。散水制御器２５の入力側には外気温度検出手段３４、外気湿度検出手段３５、消費電力検出手段３８、制御器１８が接続され、出力側には流量調整弁２２が接続される。また、散水制御器２５は散水量演算手段２６と散水制御手段２７を有する。 In addition, the watering unit 1 is installed along with the condenser 12 of the outdoor unit 2. In the watering unit 1, a spray nozzle 21 indicating a watering means, a flow rate adjusting valve 22, and a strainer 23 are connected by a water pipe having a water supply port 24, and a watering controller 25, an outside air temperature detecting means 34, and an outside air humidity detecting means 35. Consists of An outside air temperature detecting means 34, an outside air humidity detecting means 35, a power consumption detecting means 38, and a controller 18 are connected to the input side of the watering controller 25, and a flow rate adjusting valve 22 is connected to the output side. Further, the watering controller 25 has a watering amount calculating means 26 and a watering control means 27.

次に、動作について説明する。
まず、図２は散水の有無による外気温度と消費電力の関係を示し、散水有は、一定散水量を行った場合である。そこで、散水有無による消費電力の入力差を見てみると、外気温度の低下とともに入力差が小さくなっており、外気温度が低い場合には、散水量の一部が有効に使われていないことがわかる。そこで、図３に外気温度Toに対して全て有効に使える必要散水量Gを示す。外気温度Toの低下とともに必要散水量は小さくなり、たとえば次式(1)のように表される。
Ｇ＝0.1711・To+3.9736 ・・・ (1)
散水量演算手段２６では、外気温度Toから式(1)の演算が成され、必要散水量Ｇを決定する。 Next, the operation will be described.
First, FIG. 2 shows the relationship between the outside air temperature and the power consumption depending on the presence or absence of watering, and the presence of watering is a case where a certain amount of watering is performed. Therefore, looking at the difference in power consumption due to the presence or absence of water spray, the input difference decreases as the outside air temperature decreases. When the outside air temperature is low, part of the water spray is not used effectively. I understand. Therefore, FIG. 3 shows the necessary water spray amount G that can be used effectively with respect to the outside air temperature To. As the outside air temperature To decreases, the required water spray amount decreases, and is expressed, for example, by the following equation (1).
G = 0.1711 ・ To + 3.9736 (1)
In the sprinkling amount calculation means 26, the calculation of the expression (1) is performed from the outside air temperature To, and the necessary sprinkling amount G is determined.

そこで、このまま、外気温度に応じて必要散水量Ｇを散水ユニットから凝縮器１２へ散水してもよいが、外気温度が上昇傾向または下降傾向にあるとき、現在の外気温度に基づいて散水量を調整すると散水量の増減に時間遅れが生ずる場合があり、この時間遅れのため高圧カットにより空調機が停止してしまうこともある。そこで、外気温度Toの未来値を予測して、その予測値により必要散水量Ｇを決定し、時間遅れを補償する。 Therefore, the necessary water spray amount G may be sprinkled from the water spray unit to the condenser 12 according to the outside air temperature. However, when the outside air temperature tends to increase or decrease, the water spray amount is reduced based on the current outside air temperature. If adjusted, there may be a time delay in the increase / decrease in the amount of sprinkling, and the air conditioner may stop due to the high pressure cut due to this time delay. Therefore, the future value of the outside air temperature To is predicted, the necessary water spray amount G is determined based on the predicted value, and the time delay is compensated.

予測値算出の一例を図４に示す。図中の記号ｙが外気温度Toとする。現在時刻がt0、一定時間間隔τで現在から過去へt0、t-1、t-2時刻のときの外気温度検出値をそれぞれy0、y-1、y-2とすると、現在からτ時間後の時刻t1での外気温度予測値y1は次式(2)のように表せる。
y1＝（y0−y-1）²／（y-1−y-2）＋y0 ・・・ (2) An example of predicted value calculation is shown in FIG. The symbol y in the figure is the outside air temperature To. If the current temperature is t0 and the detected outside air temperature is y0, y-1, y-2 at the time t0, t-1, t-2 from the present to the past at a fixed time interval τ, then τ hours later The predicted outside air temperature value y1 at time t1 can be expressed as the following equation (2).
y1 = (y0−y−1) ² / (y−1−y−2) + y0 (2)

そこで、演算式（２）により上記外気温度の時間遅れの補償を行った場合の散水量制御を図５を用いて説明する。
まず、ステップＳ１０では、外気温度Toを検出する。この値は時々刻々３点まで、すなわちt0、t-1、t-2時刻のときの各外気温度検出値y0、y-1、y-2が散水制御器２５に記憶される。ステップＳ１１では、検知し記憶されている３点の外気温度Toから式(2)により外気温度の予測値Toyが演算される。ステップＳ１２では、外気温度予測値Toyと散水を行う基準温度として予め設定された設定外気温度To*を比較して、ToがTo*以上であるかどうか判断する。ここで、例えば設定外気温度To*＝３０℃と設定しておく。 Therefore, the water spray amount control when the time delay of the outside air temperature is compensated by the calculation formula (2) will be described with reference to FIG.
First, in step S10, the outside air temperature To is detected. This value is stored in the watering controller 25 up to three points from time to time, that is, the detected outside air temperatures y0, y-1, y-2 at time t0, t-1, t-2. In step S11, the predicted value Toy of the outside air temperature is calculated from the three detected outside air temperatures To by the equation (2). In step S12, a predicted outside air temperature value Toy is compared with a set outside air temperature To * preset as a reference temperature for watering, and it is determined whether To is equal to or higher than To *. Here, for example, the set outside air temperature To * = 30 ° C. is set.

そこで、外気温度の予測値Toyが設定外気温度To*以上であれば、ステップＳ１３へ進み、上記式(１)を用いて外気温度の予測値Toyから散水量Ｇを演算する。ステップＳ１４では、例えば数十秒間隔等のある一定制御タイミングを経過したかどうかを判断し、経過した場合には、ステップ１０へ戻り、上記動作を繰り返す。 Therefore, if the predicted value Toy of the outside air temperature is equal to or higher than the set outside temperature To *, the process proceeds to step S13, and the water spray amount G is calculated from the predicted value Toy of the outside air temperature using the above formula (1). In step S14, for example, it is determined whether or not a certain control timing such as an interval of several tens of seconds has elapsed. If it has elapsed, the process returns to step 10 to repeat the above operation.

この散水量制御は、図１においては、外気温度検出手段３４にて外気温度を検出して散水制御器２５に記憶し、散水量演算手段２６により、記憶された外気温度検出値から外気温度予測値を演算して、予測値から必要な散水量Ｇを演算する。この必要散水量Ｇになるように散水制御手段２７が流量調整弁２２の開度を調節し、以上の動作をある一定制御タイミングで繰り返し行う。 In FIG. 1, the sprinkling amount control is performed by detecting the outside air temperature by the outside air temperature detecting unit 34 and storing it in the watering controller 25, and the outside water temperature prediction from the stored outside air temperature detection value by the watering amount calculating unit 26. The value is calculated, and the required watering amount G is calculated from the predicted value. The water sprinkling control means 27 adjusts the opening degree of the flow rate adjusting valve 22 so that the required water sprinkling amount G is reached, and the above operation is repeated at a certain constant control timing.

以上のように、この実施の形態１では、散水による消費電力の低減効果に加え、外気温度に対して水を過不足無く使用することができ、さらに散水動作の応答遅れを補償することができる。
なお、上記式(2)は外気温度の予測に用いたものを示したが、空調負荷の増減によって生じる運転周波数、消費電力、凝縮温度、凝縮圧力の予測にも用いることができる。また、式(2)ではなく単純な直線近似による予測でも代用は可能である。 As described above, in the first embodiment, in addition to the effect of reducing the power consumption due to watering, water can be used without excess or deficiency with respect to the outside air temperature, and the response delay of the watering operation can be compensated. .
In addition, although the said Formula (2) showed what was used for prediction of outside temperature, it can be used also for the prediction of the operating frequency, power consumption, condensation temperature, and condensation pressure which arise by increase / decrease in an air-conditioning load. Further, instead of the formula (2), a simple linear approximation can be used as a substitute.

実施の形態２．
実施の形態１では室内負荷を検出する方法として外気温度を検出して必要な散水量を演算し散水したものを示したが、外気温度以外の検出値でも必要な散水量を演算し散水することができる。本実施の形態２では、外気温度以外の検出値による散水について詳述する。なお、冷凍サイクル装置の構成図は、図１と同様である。 Embodiment 2. FIG.
In the first embodiment, as a method for detecting the indoor load, the outside air temperature is detected and the necessary watering amount is calculated and sprinkled. However, the necessary watering amount is calculated and sprinkled even with a detection value other than the outside air temperature. Can do. In this Embodiment 2, the watering by detection values other than external temperature is explained in full detail. The configuration diagram of the refrigeration cycle apparatus is the same as FIG.

図６はこの発明の実施の形態２を示す冷凍サイクル装置の圧縮機の運転容量である運転周波数と必要散水量の関係を示す図である。図において、周波数fzの上昇とともに必要散水量は大きくなり、たとえば次式(3)のように表される。
Ｇ＝0.0613・fz + 6.2149 ・・・ (3)
ここで、周波数が増えていくと冷凍サイクル側では、消費電力、凝縮温度、凝縮圧力が同時に上昇していくのが容易に想像できる。 FIG. 6 is a diagram showing the relationship between the operating frequency, which is the operating capacity of the compressor of the refrigeration cycle apparatus showing Embodiment 2 of the present invention, and the required water spray amount. In the figure, as the frequency fz increases, the required watering amount increases, and is represented by the following equation (3), for example.
G = 0.0613 ・ fz + 6.2149 (3)
Here, it can be easily imagined that on the refrigeration cycle side, the power consumption, the condensing temperature, and the condensing pressure rise simultaneously as the frequency increases.

図７はこの発明の実施の形態２を示す冷凍サイクル装置の消費電力Ｐと必要散水量の関係を示す図である。図において、消費電力Ｐの上昇とともに必要散水量は大きくなり、たとえば次式(4)のように表される。
Ｇ＝0.0084・P + 5.7879 ・・・ (4) FIG. 7 is a diagram showing the relationship between the power consumption P and the required watering amount of the refrigeration cycle apparatus showing Embodiment 2 of the present invention. In the figure, as the power consumption P increases, the required watering amount increases, and is represented, for example, by the following equation (4).
G = 0.0084 ・ P + 5.7879 (4)

図８はこの発明の実施の形態２を示す冷凍サイクル装置の凝縮温度Tcと必要散水量の関係を示す図である。図において、凝縮温度Tcの上昇とともに必要散水量は大きくなり、たとえば次式(5)のように表される。
Ｇ＝1.2223・Tc + 24.24 ・・・ (5) FIG. 8 is a diagram showing the relationship between the condensation temperature Tc and the required watering amount of the refrigeration cycle apparatus showing Embodiment 2 of the present invention. In the figure, as the condensation temperature Tc increases, the required water spray amount increases, and is expressed, for example, by the following equation (5).
G = 1.2223 ・ Tc + 24.24 (5)

図９はこの発明の実施の形態２を示す冷凍サイクル装置の凝縮圧力Ｐcと必要散水量の関係を示す図である。図において、凝縮圧力Ｐcの上昇とともに必要散水量は大きくなり、たとえば次式(6)のように表される。
Ｇ＝3.9832・Pc + 36.303 ・・・ (6)
よって、運転周波数、消費電力、凝縮温度、凝縮圧力のいずれを検知しても必要な散水量を演算することができる。 FIG. 9 is a diagram showing the relationship between the condensation pressure Pc and the required water spray amount of the refrigeration cycle apparatus showing Embodiment 2 of the present invention. In the figure, as the condensing pressure Pc increases, the required water spray amount increases, and is expressed, for example, by the following equation (6).
G = 3.9832 ・ Pc + 36.303 (6)
Therefore, the necessary watering amount can be calculated by detecting any of the operating frequency, power consumption, condensing temperature, and condensing pressure.

また、必要散水量に影響を及ぼすもう一つの要因として、外気湿度がある。図１０はこの発明の実施の形態２を示す冷凍サイクル装置の外気湿度Ro外気温度Toと必要散水量の関係を示す図である。図において、外気湿度Roが低い状態では散水した水が蒸散しやすく蒸発潜熱が有効に使えるので散水量が多くなり、一方、湿度が高い状態では散水した水が蒸散しにくくなり、必要以上の散水は無駄となる。そこで、外気湿度Ro、外気温度Toと必要散水量の関係はたとえば次式(7)のように表される。
Ｇ＝（−0.2598・To + 0.0605）・Ro +（0.265・To + 3.8953）・・・ (7) Another factor affecting the required water spray rate is outside air humidity. FIG. 10 is a diagram showing the relationship between the outside air humidity Ro outside air temperature To and the required water spray amount of the refrigeration cycle apparatus showing Embodiment 2 of the present invention. In the figure, when the outside air humidity Ro is low, the sprinkled water is easy to evaporate and the latent heat of evaporation can be used effectively, so the amount of water sprayed increases. Is wasted. Therefore, the relationship between the outside air humidity Ro, the outside air temperature To, and the required water spray amount is expressed, for example, by the following equation (7).
G = (-0.2598 · To + 0.0605) · Ro + (0.265 · To + 3.8953) (7)

図１１はこの発明の実施の形態２を示す冷凍サイクル装置の外気温度、消費電力、外気湿度による散水量制御を示すフローチャートであり、上記条件を加味した制御フローを示すが、周波数、消費電力、凝縮温度、凝縮圧力のいずれを検出しても必要散水量を演算できるので、ここでは消費電力を例に説明する。 FIG. 11: is a flowchart which shows the amount of sprinkling control by the outside temperature of a refrigeration cycle apparatus which shows Embodiment 2 of this invention, power consumption, and outside air humidity, and shows the control flow which considered the said conditions, but frequency, power consumption, Since the required water spray amount can be calculated by detecting either the condensation temperature or the condensation pressure, the power consumption will be described as an example here.

まず、ステップＳ２０では、外気温度検出手段３４にて外気温度Toを検出する。ステップＳ２１では外気湿度検出手段３５にて外気湿度Roを検出する。ステップＳ２２では消費電力検出手段３８により消費電力Ｐを検知する。これらの値は時々刻々３点まで、すなわちt0、t-1、t-2時刻のときの外気温度／外気湿度／消費電力の各検出値y0、y-1、y-2が散水制御器２５に記憶される。 First, in step S20, the outside air temperature detecting means 34 detects the outside air temperature To. In step S21, the outside air humidity detecting means 35 detects the outside air humidity Ro. In step S22, the power consumption P is detected by the power consumption detection means 38. These values are up to 3 points from time to time, that is, the detected values y0, y-1, and y-2 of the outside air temperature, outside air humidity, and power consumption at time t0, t-1, and t-2 are the watering controller 25. Is remembered.

ステップＳ２３では、図５のステップＳ１２と同様に、たとえば外気温度の設定外気温度と比較し散水するか判断する。そこで、散水する場合にはステップＳ２４へ進み、散水量演算手段２６により、ステップＳ２２で検出し記憶されている３点の消費電力Ｐから式(2)により消費電力Ｐの予測値Pyが演算され、ステップＳ２５では、予測値Pyから式(4)により必要散水量G'を求める。 In step S23, similarly to step S12 of FIG. 5, for example, it is determined whether or not to spray water compared to the set outside air temperature. Therefore, in the case of watering, the process proceeds to step S24, and the sprinkling amount calculating means 26 calculates the predicted value Py of the power consumption P from the three points of power consumption P detected and stored in step S22 by the equation (2). In step S25, the required watering amount G ′ is obtained from the predicted value Py by equation (4).

ステップＳ２６では、散水量演算手段２６により、ステップＳ２１で検出し記憶されている３点の外気温度To／外気湿度Roから式(2)により外気温度To／外気湿度Roの予測値Toy／Royが演算され、この予測値Toy／Royから式(7)により散水量の修正値△Ｇを求める。その後、ステップＳ２７では、散水量Ｇ'と修正散水量△Ｇより必要散水量Ｇを求め、必要散水量Ｇになるように散水制御手段２７が流量調整弁２２の開度を調節する。ステップＳ２８では、例えば数十秒間隔等のある一定制御タイミングを経過したかどうかを判断し、経過した場合には、ステップＳ２０へ戻り、上記動作を繰り返す。 In step S26, the predicted value Toy / Roy of the outside air temperature To / the outside air humidity Ro is calculated by the formula (2) from the three outside air temperatures To / the outside air humidity Ro detected and stored in the step S21. It is calculated, and the corrected value ΔG of the sprinkling amount is obtained from the predicted value Toy / Roy by the equation (7). Thereafter, in step S27, the required watering amount G is obtained from the watering amount G ′ and the corrected watering amount ΔG, and the watering control means 27 adjusts the opening degree of the flow rate adjusting valve 22 so that the required watering amount G is obtained. In step S28, it is determined whether or not a certain control timing such as an interval of several tens of seconds has elapsed. If it has elapsed, the process returns to step S20 to repeat the above operation.

なお、上記説明は、消費電力を検出したものを示したが、周波数、凝縮温度、凝縮圧力を検出しても同様に行われることはいうまでもない。
以上のように、この実施の形態２では、散水による消費電力の低減効果に加え、運転周波数、凝縮温度、凝縮圧力、消費電力、外気温度、外気湿度に対して水を過不足無く使用することができ、さらに散水動作の応答遅れを補償することができる。 In addition, although the said description showed what detected power consumption, it cannot be overemphasized that it is performed similarly even if it detects a frequency, a condensing temperature, and a condensing pressure.
As described above, in the second embodiment, in addition to the effect of reducing power consumption by watering, water should be used without excess or deficiency with respect to operating frequency, condensation temperature, condensation pressure, power consumption, outside air temperature, outside air humidity. In addition, the response delay of the watering operation can be compensated.

実施の形態３．
図１２はこの発明の実施の形態３を示す冷凍サイクル装置における圧縮機の運転周波数に対する蒸発器の蒸発温度を示す図、図１３はこの冷凍サイクル装置における圧縮機の運転周波数に対する顕熱比（以下、ＳＨＦという）を示す図、図１４はこの冷凍サイクル装置の圧縮機の運転周波数に対する蒸発器の吹出温度を示す図である。なお、冷凍サイクル装置の構成図は、図１と同様である。 Embodiment 3 FIG.
FIG. 12 is a diagram showing the evaporation temperature of the evaporator with respect to the operating frequency of the compressor in the refrigeration cycle apparatus showing Embodiment 3 of the present invention, and FIG. 13 is a sensible heat ratio (hereinafter referred to as the operating frequency of the compressor in the refrigeration cycle apparatus). FIG. 14 is a diagram showing the outlet temperature of the evaporator with respect to the operating frequency of the compressor of this refrigeration cycle apparatus. The configuration diagram of the refrigeration cycle apparatus is the same as FIG.

次に、被空調域の快適性について考察する。
まず、被空調域の快適性を向上させるには、室内の温度制御に加えて、室内の湿度制御を行う必要がある。冷房の場合には除湿が重要となる。除湿する方法としては、室内に蒸発器と再熱器を並べて配置するのが理想的であるが、構造が複雑になる上、コスト高になり、実用的ではない。そこで、別の方法として、蒸発器１４による除湿を考えると、除湿するには蒸発温度を低くし、冷凍サイクルのＳＨＦを小さくする必要がある。 Next, the comfort of the air-conditioned area will be considered.
First, in order to improve the comfort of the air-conditioned area, it is necessary to perform indoor humidity control in addition to indoor temperature control. In the case of cooling, dehumidification is important. As a dehumidifying method, it is ideal to arrange the evaporator and the reheater side by side in the room, but the structure becomes complicated and the cost increases, which is not practical. Therefore, as another method, considering dehumidification by the evaporator 14, in order to dehumidify, it is necessary to lower the evaporation temperature and to reduce the SHF of the refrigeration cycle.

蒸発温度を低くするには、圧縮機１１の運転周波数を上げる、蒸発器送風機１７の送風量を小さくする、凝縮器送風機１６の送風量を大きくする、などの方法がある。しかしながら、圧縮機１１の運転周波数を上げると電気入力が大きくなってしまい、蒸発器送風機１７の送風量を小さくすると吹出温度が低くなり被空調域の快適性が阻害される（図１４）、凝縮器送風機１６の送風量を大きくすると蒸発温度低下に差ほど効果がない、などのそれぞれ問題点がある。 In order to lower the evaporation temperature, there are methods such as increasing the operating frequency of the compressor 11, decreasing the air flow rate of the evaporator blower 17, and increasing the air flow rate of the condenser blower 16. However, when the operating frequency of the compressor 11 is increased, the electric input increases, and when the amount of air blown from the evaporator blower 17 is reduced, the blowing temperature is lowered and the comfort of the air-conditioned area is hindered (FIG. 14). Each increase in the amount of air blown from the fan blower 16 has problems such as not being as effective in reducing the evaporation temperature.

そこで、凝縮器１２への散水を行った場合には、図１２に示すように蒸発器１４の蒸発温度が下がり、結果として図１３に示すようにＳＨＦが小さくなり、蒸発器１４の吹出温度も凝縮器送風機１６の風量もそのままであり、下がることがないという利点がある。
以上のことから、凝縮器１２への散水量を制御することにより、上記問題点が生じることなく、被空調域の湿度を制御することが可能となる。 Therefore, when water is sprayed to the condenser 12, the evaporation temperature of the evaporator 14 is lowered as shown in FIG. 12, and as a result, the SHF is reduced as shown in FIG. The air volume of the condenser blower 16 remains the same, and there is an advantage that it does not drop.
From the above, it is possible to control the humidity of the air-conditioned area by controlling the amount of water sprayed to the condenser 12 without causing the above problems.

次に、凝縮器への散水量制御による被空調域の湿度制御について説明する。
図１５はこの発明の実施の形態３を示す冷凍サイクル装置の空気線図における室内空気状態（室内温度Tr、室内湿度Rr）と目標室内空気状態（目標室内温度Tr*、目標室内湿度Rr*）と目標蒸発温度Te*の関係を示す図である。図において、室内空気状態は蒸発器１４の入口空気状態に相当し、室内空気状態と目標室内空気状態を結ぶ直線が飽和線と交差する点が目標蒸発温度Te*となる。すなわち、この勾配の状態が冷凍サイクル装置のＳＨＦと被空調室の空調負荷ＳＨＦが等しい状態に相当する。よって、ここで求めた目標蒸発温度Te*に蒸発温度Teを収束させれば、室内空気状態を目標室内空気状態にすることができ、以下に図を用いて説明する。 Next, humidity control of the air-conditioned area by controlling the amount of water sprayed to the condenser will be described.
FIG. 15 shows the room air condition (room temperature Tr, room humidity Rr) and the target room air condition (target room temperature Tr *, target room humidity Rr *) in the air diagram of the refrigeration cycle apparatus showing Embodiment 3 of the present invention. It is a figure which shows the relationship between target evaporation temperature Te *. In the figure, the indoor air state corresponds to the inlet air state of the evaporator 14, and the point where the straight line connecting the indoor air state and the target indoor air state intersects the saturation line is the target evaporation temperature Te *. That is, this gradient state corresponds to a state where the SHF of the refrigeration cycle apparatus and the air conditioning load SHF of the air-conditioned room are equal. Therefore, if the evaporation temperature Te is converged to the target evaporation temperature Te * obtained here, the indoor air state can be changed to the target indoor air state, which will be described below with reference to the drawings.

図１６はこの発明の実施の形態３を示す冷凍サイクル装置における室内温度、室内湿度の散水量制御ブロック線図である。図において、ステップＳ４０では、室内温度検出手段３１による室内温度Trと目標室内温度Tr*の室内温度差△Trを演算し、ステップＳ４１では、室内温度差△Trにより圧縮機１１の運転周波数fzを設定する。ここまでは周知の技術である。 FIG. 16 is a block diagram for controlling the amount of sprinkling of room temperature and room humidity in the refrigeration cycle apparatus according to Embodiment 3 of the present invention. In step S40, a room temperature difference ΔTr between the room temperature Tr and the target room temperature Tr * by the room temperature detecting means 31 is calculated. In step S41, the operating frequency fz of the compressor 11 is calculated based on the room temperature difference ΔTr. Set. So far, this is a well-known technique.

ステップＳ４２では、室内温度検出手段３１による室内温度Tr、室内湿度検出手段３２による室内湿度Rrと目標室内温度Tr*、目標室内湿度Rr*から図１５の空気線図の関係から目標蒸発温度Te*を演算する。ステップＳ４３では、目標蒸発温度Te*と現在の蒸発温度との温度差△Teを求める。ステップＳ４４では、蒸発温度差△Teから散水量G（G = 0.4・△Te + 0.7）を演算し、必要散水量Ｇになるように散水制御手段２７が流量調整弁２２の開度を調節し、凝縮器１２へ散水する。これにより、室内空気状態を目標室内温度Tr*、目標室内湿度Rr*とする。 In step S42, the target evaporation temperature Te * is calculated from the relationship between the room temperature Tr by the room temperature detection means 31, the room humidity Rr by the room humidity detection means 32, the target room temperature Tr *, and the target room humidity Rr * and the air diagram of FIG. Is calculated. In step S43, a temperature difference ΔTe between the target evaporation temperature Te * and the current evaporation temperature is obtained. In step S44, the watering amount G (G = 0.4 · ΔTe + 0.7) is calculated from the evaporation temperature difference ΔTe, and the watering control means 27 adjusts the opening of the flow rate adjusting valve 22 so that the required watering amount G is obtained. The water is sprinkled into the condenser 12. As a result, the indoor air state is set to the target indoor temperature Tr * and the target indoor humidity Rr *.

以上のように、この実施の形態３では、散水による電気入力の低減効果に加え、室内温度と室内湿度の制御が可能となり、省エネと快適性向上を両立できる。 As described above, in the third embodiment, in addition to the effect of reducing the electric input by watering, the room temperature and the room humidity can be controlled, and both energy saving and comfort improvement can be achieved.

実施の形態４．
実施の形態３では、凝縮器１２への散水により室内温度、室内湿度制御が可能となるが、被空調域の空調負荷ＳＨＦが、さらに小さい場合には散水のみでは室内湿度制御が困難になる場合がある。そこで、実施の形態３の手法に加えて、凝縮器送風機１６の送風量と蒸発器送風機１７の送風量の制御を行い、湿度制御の範囲を広くすることについて、以下に図を用いて説明する。 Embodiment 4 FIG.
In the third embodiment, the indoor temperature and the indoor humidity can be controlled by watering the condenser 12. However, when the air conditioning load SHF in the air-conditioned area is smaller, it is difficult to control the indoor humidity only by watering. There is. Therefore, in addition to the method of the third embodiment, the control of the blast volume of the condenser blower 16 and the blast volume of the evaporator blower 17 to widen the range of humidity control will be described below with reference to the drawings. .

図１７はこの発明の実施の形態４を示す冷凍サイクル装置における室内温度、室内湿度の散水量制御、蒸発器、凝縮器送風量制御の制御フローチャートである。なお、冷凍サイクル装置の構成図は、図１と同様である。なお、蒸発器送風量制御手段、凝縮器送風量制御手段は、制御器１８を示す。 FIG. 17 is a control flowchart of the indoor temperature and indoor humidity sprinkling control, the evaporator and condenser air flow control in the refrigeration cycle apparatus showing Embodiment 4 of the present invention. The configuration diagram of the refrigeration cycle apparatus is the same as FIG. Note that the evaporator airflow control means and the condenser airflow control means indicate the controller 18.

次に、動作について説明する。
図において、ステップＳ５０からＳ５７の動作は、上記実施の形態３の図１６のブロック線図の動作と同一であるため、説明を省略する。ステップＳ５８では、ステップＳ５７で求めた散水量Ｇが散水量最大値Ｇmax（可能最大値）を超えたかどうかを判断し、超えた場合には、散水量GをGmaxと設定し、ステップＳ５９で凝縮器送風機１６の送風量Ｖｃをアップする。ステップＳ６０では、凝縮器送風機１６の送風量Ｖｃが凝縮器送風機１６の送風量最大値Ｖcmaxを超えたかどうかを判断し、超えた場合には、凝縮器送風機１６の送風量ＶｃはＶcmaxに設定し、ステップＳ６１に進み蒸発器送風機１７の送風量Veをダウンする。これら一連の動作により蒸発温度を下げることが可能となる。 Next, the operation will be described.
In the figure, the operation from step S50 to S57 is the same as the operation of the block diagram of FIG. In step S58, it is determined whether or not the sprinkling amount G obtained in step S57 exceeds the maximum sprinkling amount Gmax (maximum possible value). If so, the sprinkling amount G is set to Gmax, and condensing is performed in step S59. The air flow rate Vc of the fan blower 16 is increased. In step S60, it is determined whether or not the air flow rate Vc of the condenser blower 16 exceeds the maximum air flow rate value Vcmax of the condenser blower 16, and if so, the air flow rate Vc of the condenser blower 16 is set to Vcmax. Then, the process proceeds to step S61, and the air flow rate Ve of the evaporator blower 17 is decreased. With this series of operations, the evaporation temperature can be lowered.

また、ステップＳ５８で散水量Ｇが散水量最大値Ｇmax（可能最大値）を超えない場合には、ステップＳ６３で凝縮器送風機１６の送風量Ｖｃをダウンし、ステップＳ６４で蒸発器送風機１７の送風量Ｖｅをアップする。
さらに、ステップＳ６０で凝縮器送風機１６の送風量Ｖｃが凝縮器送風機１６の送風量最大値Ｖcmaxを超えない場合には、ステップＳ６４で蒸発器送風機１７の送風量Ｖｅはアップする。
その後、ステップＳ６２では、例えば数十秒間隔等のある一定制御タイミングを経過したかどうかを判断し、経過した場合には、ステップＳ５１へ戻り、上記動作を繰り返す。 If the water spray amount G does not exceed the maximum water spray amount Gmax (maximum possible value) in step S58, the air flow rate Vc of the condenser blower 16 is reduced in step S63, and the evaporator blower 17 is sent in step S64. Increase air volume Ve.
Furthermore, when the air flow rate Vc of the condenser blower 16 does not exceed the maximum air flow rate value Vcmax of the condenser blower 16 in step S60, the air flow rate Ve of the evaporator blower 17 is increased in step S64.
Thereafter, in step S62, it is determined whether or not a certain control timing such as an interval of several tens of seconds has elapsed. If it has elapsed, the process returns to step S51 to repeat the above operation.

以上のように、この実施の形態４では、散水による電気入力の低減効果に加え、室内温度と室内湿度の制御が広い温度、湿度範囲で可能となり、省エネと快適性向上を両立できる。 As described above, in the fourth embodiment, in addition to the effect of reducing the electric input by watering, the room temperature and the room humidity can be controlled in a wide temperature and humidity range, and both energy saving and comfort improvement can be achieved.

実施の形態５．
図１８はこの発明の実施の形態５を示す冷凍サイクル装置の一部構成図であり、散水ユニットおよび凝縮器のみの構成を示す。なお、散水ユニットおよび凝縮器以外の構成は、図示していないが、図１と同一である。
図において、図１と同一または相当部分には同一符号を付け、説明を省略する。４０は凝縮器１２の下端部表面に取り付けられ、凝縮器１２表面の水分の有無を検出する第１の水分センサ、４１は凝縮器１２近傍の下方に取り付けられ、凝縮器１２から流れ落ちた水分の有無を検出する第２の水分センサである。なお、第１の水分センサ、第２の水分センサは、それぞれ第１の水分検出手段、第２の水分検出手段を示す。 Embodiment 5 FIG.
FIG. 18 is a partial configuration diagram of a refrigeration cycle apparatus showing Embodiment 5 of the present invention, and shows a configuration of only a watering unit and a condenser. In addition, although structures other than a watering unit and a condenser are not shown in figure, they are the same as FIG.
In the figure, the same or corresponding parts as in FIG. Reference numeral 40 denotes a first moisture sensor that is attached to the lower end surface of the condenser 12 and detects the presence or absence of moisture on the condenser 12 surface, and 41 is attached below the vicinity of the condenser 12 to remove moisture that has flowed down from the condenser 12. It is the 2nd moisture sensor which detects presence or absence. The first moisture sensor and the second moisture sensor indicate a first moisture detection unit and a second moisture detection unit, respectively.

次に動作について説明する。
本実施形態では、凝縮器１２への散水動作について説明する。
最も効率的に散水するには、凝縮器１２が満遍なく濡れた状態で、かつ、凝縮器１２の下方へ水が流れ落ちないように散水量を設定することが必要である。そこで、第１の水分センサ４０により凝縮器１２下端表面の水分有りを検出し、かつ、第２の水分センサ４１により凝縮器１２から離れた下方に水分を検出しないように、スプレーノズル２１により散水を行う。 Next, the operation will be described.
In this embodiment, the watering operation to the condenser 12 will be described.
In order to spray water most efficiently, it is necessary to set the watering amount so that the condenser 12 is evenly wet and the water does not flow down to the lower side of the condenser 12. Therefore, the spray nozzle 21 sprays water so that the first moisture sensor 40 detects the presence of moisture on the lower end surface of the condenser 12 and the second moisture sensor 41 does not detect moisture below the condenser 12. I do.

すなわち、第１の水分センサ４０と第２の水分センサ４１ともに水を検出せず、乾いた状態の場合には、散水制御部２５により流量調整弁２２の開度を大にして散水量をアップさせる。また、第１の水分センサ４０と第２の水分センサ４１ともに濡れた状態では、流量調整弁２２の開度を小にして散水量をダウンさせる。さらに、第１の水分センサ４０が濡れた状態、かつ、第２の水分センサ４１が乾いた状態の場合には、効率的に散水されているため、流量調整弁２２の開度は変更せず、現状の散水量を保持する。
なお、この実施形態では、散水動作のみを説明したが、散水以外の動作については上記各実施形態のように行ってもよいことはいうまでもない。 That is, when the first moisture sensor 40 and the second moisture sensor 41 do not detect water and are in a dry state, the watering control unit 25 increases the opening of the flow rate adjustment valve 22 to increase the watering amount. Let Further, when both the first moisture sensor 40 and the second moisture sensor 41 are wet, the opening of the flow rate adjustment valve 22 is reduced to reduce the water spray amount. Furthermore, when the first moisture sensor 40 is wet and the second moisture sensor 41 is dry, water is efficiently sprinkled, so the opening degree of the flow rate adjustment valve 22 is not changed. , Keep the current watering amount.
In addition, although this embodiment demonstrated only watering operation | movement, it cannot be overemphasized that operation | movement other than watering may be performed like said each embodiment.

以上のように、この実施例においては、散水による電気入力の低減効果に加え、常に凝縮器が濡れ、かつ、凝縮器の下方に水が流れ落ちないように散水するので、無駄に散水することがなく、水の節約を行うことができる。 As described above, in this embodiment, in addition to the effect of reducing electric input by watering, the condenser is always wet and water is sprayed so that water does not flow below the condenser. Without saving water.

１散水ユニット、２室外機、３室内機、４室内、１１圧縮機、１２凝縮器、１３絞り機構、１４蒸発器、１５四方弁、１６凝縮器送風機、１７蒸発器送風機、１８制御器、２１スプレーノズル、２２流量調整弁、２３ストレーナ、２４給水口、２５散水制御器、２６散水量演算手段、２７散水制御手段、３１室内温度検出手段、３２室内湿度検出手段、３３蒸発温度検出手段、３４外気温度検出手段、３５外気湿度検出手段、３６凝縮温度検出手段、３７凝縮圧力検出手段、３８消費電力検出手段、４０第１の水分センサ、４１第２の水分センサ。 DESCRIPTION OF SYMBOLS 1 Sprinkling unit, 2 outdoor unit, 3 indoor unit, 4 indoors, 11 compressor, 12 condenser, 13 throttle mechanism, 14 evaporator, 15 four-way valve, 16 condenser blower, 17 evaporator blower, 18 controller, 21 Spray nozzle, 22 Flow rate adjusting valve, 23 Strainer, 24 Water supply port, 25 Sprinkling controller, 26 Sprinkling amount calculation means, 27 Sprinkling control means, 31 Indoor temperature detection means, 32 Indoor humidity detection means, 33 Evaporation temperature detection means, 34 Outside air temperature detecting means, 35 Outside air humidity detecting means, 36 Condensing temperature detecting means, 37 Condensing pressure detecting means, 38 Power consumption detecting means, 40 First moisture sensor, 41 Second moisture sensor.

Claims

圧縮機、凝縮器、蒸発器、膨張手段を有する冷媒回路を形成した冷凍サイクル装置において、
冷却対象の室内空気の乾球温度を検出する室内温度検出手段と、
冷却対象の室内空気の湿度を検出する室内湿度検出手段と、
前記蒸発器の蒸発温度を検知する蒸発温度検出手段と、
前記凝縮器へ散水する散水手段と、
前記凝縮器への散水量を演算する散水量演算手段と、
この散水量演算手段による散水量になるように、前記散水手段による散水量を制御する散水制御手段とを備え、
前記散水量演算手段は、前記室内温度検出手段による室内温度、前記室内湿度検出手段による室内湿度、前記蒸発温度検出手段による蒸発温度に基づいて前記凝縮器への散水量を演算することを特徴とする冷凍サイクル装置。 In the refrigeration cycle apparatus in which a refrigerant circuit having a compressor, a condenser, an evaporator, and an expansion means is formed,
Indoor temperature detection means for detecting the dry bulb temperature of the indoor air to be cooled;
Indoor humidity detection means for detecting the humidity of the indoor air to be cooled;
Evaporating temperature detecting means for detecting the evaporating temperature of the evaporator;
Watering means for watering the condenser;
Watering amount calculating means for calculating the amount of watering to the condenser;
Watering control means for controlling the watering amount by the watering means so as to be the watering amount by the watering amount calculation means,
The sprinkling amount calculating means calculates the sprinkling amount to the condenser based on the indoor temperature by the indoor temperature detecting means, the indoor humidity by the indoor humidity detecting means, and the evaporation temperature by the evaporating temperature detecting means. Refrigeration cycle equipment.

前記蒸発器へ送風する送風機の送風量を制御する蒸発器送風量制御手段または／および前記凝縮器へ送風する送風機の送風量を制御する凝縮器送風量制御手段を備え、前記散水量演算手段により演算された散水量に応じて、蒸発器送風量制御手段または／および凝縮器送風量制御手段により、蒸発器または／および凝縮器への送風量を制御することを特徴とする請求項１項記載の冷凍サイクル装置。 An evaporator air flow control means for controlling the air flow of the blower that blows air to the evaporator and / or a condenser air flow control means that controls the air flow of the air blower sent to the condenser; 2. The air flow to the evaporator or / and the condenser is controlled by the evaporator air flow control means or / and the condenser air flow control means according to the calculated watering amount. Refrigeration cycle equipment.

圧縮機、凝縮器、蒸発器、膨張手段を有する冷媒回路を形成した冷凍サイクル装置において、
前記凝縮器へ散水する散水手段と、
この散水手段による散水量を制御する散水制御手段と、
前記凝縮器の表面下部に設けられ、凝縮器表面上の水分を検出する第１の水分検出手段と、
前記凝縮器の下方に設けられ、凝縮器表面から流れ落ちる水分を検出する第２の水分検出手段とを備え、
前記散水制御手段により、第１の水分検出手段により水分が検出される状態、かつ、第２の水分検出手段により水分が検出されない状態になるように前記散水手段による散水量を制御する特徴とする冷凍サイクル装置。 In the refrigeration cycle apparatus in which a refrigerant circuit having a compressor, a condenser, an evaporator, and an expansion means is formed,
Watering means for watering the condenser;
Watering control means for controlling the amount of watering by the watering means;
A first moisture detecting means provided at the lower surface of the condenser for detecting moisture on the condenser surface;
A second moisture detecting means provided below the condenser and detecting moisture flowing down from the condenser surface;
The watering control means controls the amount of water sprayed by the watering means so that the water content is detected by the first water content detecting means and the water content is not detected by the second water content detecting means. Refrigeration cycle equipment.