JPH0791767A - Air conditioner using absorption refrigerator - Google Patents
Air conditioner using absorption refrigeratorInfo
- Publication number
- JPH0791767A JPH0791767A JP25485293A JP25485293A JPH0791767A JP H0791767 A JPH0791767 A JP H0791767A JP 25485293 A JP25485293 A JP 25485293A JP 25485293 A JP25485293 A JP 25485293A JP H0791767 A JPH0791767 A JP H0791767A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- refrigerant
- evaporator
- dilute solution
- regenerator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は一般の住宅や小規模な建
物などを対象とした吸収式冷凍機を用いた空調装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner using an absorption refrigerating machine for general houses and small buildings.
【０００２】[0002]
【従来の技術】吸収式冷凍機を用いた空調装置は、現
在、ビルあるいは大型店舗などのような産業用、業務用
の設備に主として用いられている。2. Description of the Related Art At present, an air conditioner using an absorption chiller is mainly used for industrial or commercial facilities such as a building or a large store.
【０００３】吸収式冷凍機を用いた空調装置の冷房方式
は、再生器で蒸発させた冷媒蒸気を水冷方式の凝縮器で
凝縮させ、この凝縮した冷媒を蒸発器に導いて蒸発させ
るが、その際の蒸発潜熱で冷房すべき室内に設けられた
ファンコイルユニットと冷凍機との間を循環する冷熱媒
（通常は水）を冷却する。一方、蒸発した冷媒蒸気は水
冷方式の吸収器で濃溶液（吸収液）に吸収させ、再び再
生器に戻すというサイクルで運転される。In a cooling system of an air conditioner using an absorption refrigerator, a refrigerant vapor evaporated in a regenerator is condensed in a water-cooled condenser, and the condensed refrigerant is guided to an evaporator for evaporation. The cooling heat medium (usually water) that circulates between the fan coil unit provided in the room to be cooled and the refrigerator is cooled by the latent heat of vaporization at that time. On the other hand, the evaporated refrigerant vapor is operated in a cycle in which a water-cooled absorber absorbs the concentrated solution (absorption liquid) and returns it to the regenerator.
【０００４】この種の吸収式冷凍機を用いた空調装置で
は、室内側ファンコイルユニット内に循環させる冷熱媒
の温度を蒸発器において７℃前後まで冷却し、この冷熱
媒を室内のファンコイル内に循環させて室内空気を冷却
して１２℃前後で蒸発器に戻すようにしている。吸収液
としてリチウムブロマイド水溶液を使用する場合は、吸
収器内の吸収液の温度を４０℃前後に保つことが必要と
なり、この温度を維持するためには冷却塔を屋上などに
設置して水冷回路で冷却する方法が取られている。In an air conditioner using this type of absorption refrigerator, the temperature of the cold heat medium circulated in the indoor fan coil unit is cooled to around 7 ° C. in the evaporator, and the cold heat medium is circulated in the indoor fan coil. It is circulated to cool the indoor air and return it to the evaporator at around 12 ° C. When using an aqueous lithium bromide solution as the absorbing liquid, it is necessary to maintain the temperature of the absorbing liquid in the absorber at around 40 ° C. To maintain this temperature, a cooling tower is installed on the rooftop or the like, and the water cooling circuit is installed. The method of cooling is adopted.
【０００５】ところがこのような水冷方式を採用した従
来の吸収式冷凍機を用いた空調装置には次のような問題
がある。However, the conventional air conditioner using the absorption type refrigerating machine adopting such a water cooling system has the following problems.
【０００６】（１）吸収器を水冷方式で温度管理してい
るために、設備が大型になるとともに配管が必要にな
り、そのために多くの工事費がかかり、一般の住宅や小
規模の建物の冷房用には不向きである。(1) Since the temperature of the absorber is controlled by a water cooling system, the equipment becomes large and piping is required. Therefore, a lot of construction cost is required, which is a problem for general houses and small buildings. Not suitable for cooling.
【０００７】（２）冷房すべき室内のファンコイルユニ
ットと冷凍機とを冷熱媒循環用の配管で結ぶ必要がある
ために、工事費や設備費が高額になる。これは、吸収液
と冷媒にアンモニア水を使用するアンモニア吸収式冷凍
機についても同じである。(2) Since it is necessary to connect the fan coil unit and the refrigerator in the room to be cooled by the pipe for circulating the heating / cooling medium, the construction cost and equipment cost are high. The same applies to an ammonia absorption refrigerator that uses ammonia water as the absorbing liquid and the refrigerant.
【０００８】そこで本発明者らは、凝縮器と吸収器とを
水冷方式でなく空冷方式で冷却し、冷熱媒を用いる代わ
りに冷房したい空気を直接蒸発器に通して冷却する冷房
サイクル運転を行う空調装置についてすでに特許出願を
している（特願平５−２２３５１号）。Therefore, the present inventors carry out a cooling cycle operation in which the condenser and the absorber are cooled by an air cooling method instead of a water cooling method, and the air to be cooled is directly passed through an evaporator instead of using a cooling / heating medium. A patent application has already been filed for the air conditioner (Japanese Patent Application No. 5-22351).
【０００９】[0009]
【発明が解決しようとする課題】ところでこの空冷方式
の空調装置において、凝縮器から冷媒タンクに至る配管
部分を２系統に分岐し、一方は凝縮器から冷媒タンクに
通じ、他方は凝縮器から蒸発器に直接通じている。この
凝縮器から冷媒タンクに直接通じている配管に弁が設け
られている。この弁は空調装置の立ち上がりのときな
ど、溶液を濃縮して溶液濃度を上げるときに開いて、冷
媒タンクに冷媒を溜める制御を行う。しかし、冷媒タン
クの反対側に在る弁、すなわち冷媒タンクと希溶液タン
クの間に在る弁、が閉じている状態では冷媒タンクは密
閉状態に近づき、温度と圧力が平衡状態を保つため、凝
縮器からの冷媒温度が高くなると、冷媒タンク内の圧力
も上昇し、凝縮器との圧力差がとれにくくなる。結果と
して、凝縮器から冷媒が冷媒タンクに送り出されなくな
り、凝縮器に冷媒が溜り、最終的には再生器の液面が上
限に達して空調装置が停止するという問題がある。By the way, in this air-cooling type air conditioner, the pipe portion from the condenser to the refrigerant tank is branched into two systems, one of which leads from the condenser to the refrigerant tank and the other of which evaporates from the condenser. It is directly connected to the vessel. A valve is provided in the pipe that directly leads from this condenser to the refrigerant tank. This valve is opened when the solution is concentrated and the solution concentration is increased, such as when the air conditioner is started up, and controls to store the refrigerant in the refrigerant tank. However, when the valve on the opposite side of the refrigerant tank, that is, the valve between the refrigerant tank and the dilute solution tank, is closed, the refrigerant tank approaches a closed state, and the temperature and pressure maintain an equilibrium state. When the temperature of the refrigerant from the condenser rises, the pressure in the refrigerant tank also rises, making it difficult to obtain a pressure difference with the condenser. As a result, there is a problem that the refrigerant is no longer sent out from the condenser to the refrigerant tank, the refrigerant accumulates in the condenser, and finally the liquid level of the regenerator reaches the upper limit and the air conditioner stops.
【００１０】本発明は上記の点にかんがみてなされたも
ので、溶液の濃縮過程で冷媒タンク内部の圧力が蒸発器
の圧力と平衡状態を保ち、且つ希溶液タンクから冷媒タ
ンクへの逆流を防止でき、冷媒の温度に関係なく冷媒タ
ンクに所定量の冷媒を溜めることができるようにした吸
収式冷凍機を用いた空調装置を提供することを目的とす
る。The present invention has been made in view of the above points. During the solution concentration process, the pressure inside the refrigerant tank is kept in equilibrium with the pressure in the evaporator, and the backflow from the dilute solution tank to the refrigerant tank is prevented. It is an object of the present invention to provide an air conditioner using an absorption refrigerating machine capable of accumulating a predetermined amount of refrigerant in a refrigerant tank regardless of the temperature of the refrigerant.
【００１１】[0011]
【課題を解決するための手段】本発明は上記の目的を達
成するために、リチウムブロマイド水溶液を主成分とし
た吸収液に冷媒としての水を吸収させた希溶液を加熱し
て冷媒蒸気を発生させる再生器と、前記再生器で発生し
た冷媒蒸気を空冷により凝縮する凝縮器と、空調対象室
内空気の流通するダクト内に配置され且つ前記凝縮器に
キャピラリー等の圧損部材を介して連通された蒸発器
と、前記蒸発器で蒸発した冷媒を吸収する吸収液とが反
応する空冷式吸収器と、前記凝縮器に弁を介して連通さ
れた冷媒タンクと、前記吸収器と前記再生器との間に連
結された希溶液タンクとを備え、前記希溶液タンクから
前記冷媒タンクへの逆流を防止するため前記冷媒タンク
と前記希溶液タンクとの間に逆止弁を備えた直結管を接
続した吸収式冷凍機を用いた空調装置において、溶液の
濃縮過程で前記冷媒タンク内部の圧力を前記蒸発器の圧
力と平衡させるため前記冷媒タンクと前記希溶液タンク
とを直結した通路部を設けたことを特徴とする。In order to achieve the above object, the present invention generates a refrigerant vapor by heating a dilute solution obtained by absorbing water as a refrigerant in an absorbing solution containing an aqueous solution of lithium bromide as a main component. A regenerator to be made, a condenser that condenses the refrigerant vapor generated in the regenerator by air cooling, is arranged in a duct through which the air to be air-conditioned is circulated, and is connected to the condenser through a pressure loss member such as a capillary. An evaporator, an air-cooled absorber that reacts with an absorbing liquid that absorbs the refrigerant evaporated in the evaporator, a refrigerant tank that is in communication with the condenser via a valve, and the absorber and the regenerator A dilute solution tank connected in between, and a direct connection pipe having a check valve is connected between the refrigerant tank and the dilute solution tank to prevent backflow from the dilute solution tank to the refrigerant tank. Absorption refrigerator In the air conditioning apparatus using, characterized in that a passage directly connected with said dilute solution tank and the refrigerant tank for the pressure inside the refrigerant tank in the concentration process of the solution to equilibrate with the pressure of the evaporator.
【００１２】[0012]
【作用】本発明は以上の構成によって、冷媒タンクと希
溶液タンクの圧力が同じとなるので、冷媒の濃縮過程に
おいて、冷媒タンク内の圧力が蒸発器の圧力と平衡し、
凝縮器から冷媒を冷媒タンクへ送り出すことができる。According to the present invention, since the pressure in the refrigerant tank and the pressure in the dilute solution tank are the same, the pressure in the refrigerant tank is balanced with the pressure in the evaporator during the refrigerant concentration process.
The refrigerant can be sent from the condenser to the refrigerant tank.
【００１３】[0013]
【実施例】以下本発明を図面に基づいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.
【００１４】図１は本発明を実施した単効用吸収式冷凍
機を用いた空調装置の一実施例の要部を示し、図２は本
発明による空調装置の設置状態を示す。FIG. 1 shows an essential part of an embodiment of an air conditioner using a single-effect absorption refrigerator according to the present invention, and FIG. 2 shows an installed state of the air conditioner according to the present invention.
【００１５】本発明による空調装置は、図２に示すよう
に、室外機１と室内機２とから成り、室外機１は図１に
示すような構成で空調しようとする住宅の室５の外に配
置され、室内機２は冷風の吹出し口と室内空気の吸込み
口のみを有し、室５の内部に配置される。室外機１と室
内機２は冷風の送風ダクト３と室内空気の吸気ダクト４
とで接続されている。６は、装置の運転をスタートまた
はストップしたり、室内の温度を希望温度に設定した
り、冷風の吹出し風量を調整するためのリモコンであ
る。As shown in FIG. 2, the air conditioner according to the present invention comprises an outdoor unit 1 and an indoor unit 2, and the outdoor unit 1 has the structure as shown in FIG. The indoor unit 2 has only an outlet for cool air and an inlet for indoor air, and is disposed inside the chamber 5. The outdoor unit 1 and the indoor unit 2 are provided with a cool air blowing duct 3 and an indoor air intake duct 4
Connected with. Reference numeral 6 is a remote controller for starting or stopping the operation of the apparatus, setting the room temperature to a desired temperature, and adjusting the amount of cold air blown out.
【００１６】室外機１の内部は図１に示すような構成に
なっており、吸収液としてリチウムブロマイド水溶液が
用いられ、冷媒として水が用いられる。The inside of the outdoor unit 1 is constructed as shown in FIG. 1, in which an aqueous lithium bromide solution is used as an absorbing liquid and water is used as a refrigerant.
【００１７】蒸発器１０は室内器２に連通した送風ダク
ト３と吸気ダクト４との接合部の空調対象室内空気の流
通する部分に配置され、冷媒を蒸発させ、その蒸発潜熱
によりそこを通過する空気を冷却する機能を有し、かつ
凝縮器１６にキャピラリー２４等の圧損部材を介して連
通されている。吸気ダクト４内には送風ファン１１が設
けられている。The evaporator 10 is arranged in a portion of the joint between the air duct 3 and the intake duct 4 communicating with the indoor unit 2 in which the room air to be air conditioned flows, evaporates the refrigerant, and passes through it by the latent heat of vaporization. It has a function of cooling air and is communicated with the condenser 16 through a pressure loss member such as a capillary 24. A blower fan 11 is provided in the intake duct 4.
【００１８】再生器１２は、冷媒を吸収して濃度の薄く
なった吸収液をバーナ１３により加熱することによって
冷媒蒸気を発生させるとともに吸収液の濃度を濃縮する
機能を有する。バーナ１３へは燃料供給管１４から燃料
ガスが供給され、その燃焼程度は燃焼制御弁１５により
調節される。The regenerator 12 has a function of generating refrigerant vapor by absorbing the refrigerant and heating the absorbent having a reduced concentration by the burner 13 and concentrating the concentration of the absorbent. Fuel gas is supplied to the burner 13 from a fuel supply pipe 14, and the degree of combustion is adjusted by a combustion control valve 15.
【００１９】凝縮器１６は、再生器１２から送られてく
る冷媒蒸気を空冷ファン１７により冷却して液化する機
能を有し、溶液の濃度を調節するために冷媒の一部を冷
媒タンク１８に蓄える。冷媒タンク１８は凝縮器１６に
弁Ｖ５を介して連通されている。The condenser 16 has a function of cooling and liquefying the refrigerant vapor sent from the regenerator 12 by the air cooling fan 17, and a part of the refrigerant is stored in the refrigerant tank 18 in order to adjust the concentration of the solution. store. The refrigerant tank 18 is connected to the condenser 16 via a valve V5.
【００２０】希溶液タンク２１から冷媒タンク１８への
逆流を防止するため冷媒タンク１８と希溶液タンク２１
との間に逆止弁Ｖ４を備えた直結管２６を接続し且つ冷
媒タンクと希溶液タンクの圧力を同一にし、冷媒の濃縮
過程で冷媒タンク１８内部の圧力を蒸発器１０の圧力と
平衡させて冷媒が冷媒タンク１８に流れるよう冷媒タン
ク１８と希溶液タンク２１とを直結した通路部２５を設
けている。The refrigerant tank 18 and the dilute solution tank 21 are provided in order to prevent backflow from the dilute solution tank 21 to the refrigerant tank 18.
A direct connection pipe 26 equipped with a check valve V4 is connected between and, and the pressures of the refrigerant tank and the dilute solution tank are made equal, and the pressure inside the refrigerant tank 18 is balanced with the pressure of the evaporator 10 in the refrigerant concentration process. A passage portion 25 that directly connects the refrigerant tank 18 and the dilute solution tank 21 is provided so that the refrigerant flows to the refrigerant tank 18.
【００２１】吸収器２０は吸収液を蓄えており、蒸発器
１０で蒸発した冷媒をその吸収液に吸収させる機能を有
しており、凝縮器１６と同じ空冷ファン１７により空冷
される。冷媒を吸収して濃度の薄くなった吸収液は一旦
希溶液タンク２１に蓄えられる。The absorber 20 stores the absorbing liquid, has a function of absorbing the refrigerant evaporated in the evaporator 10 into the absorbing liquid, and is cooled by the same air cooling fan 17 as the condenser 16. The absorbing liquid whose concentration has been reduced by absorbing the refrigerant is temporarily stored in the dilute solution tank 21.
【００２２】２２は、希溶液タンク２１から再生器１２
に向かう濃度の小さい低温の吸収液と再生器１２から吸
収器２０に向かう濃度の大きい高温の吸収液との間で熱
交換を行なう熱交換器、２３は、冷媒を吸収して濃度の
小さくなった吸収液を希溶液タンク２１から再生器１２
に送出するポンプ、２４は、蒸発器１０の上流側と凝縮
器１６の下流側との間に設けられたキャピラリ等の圧損
部材である。Reference numeral 22 denotes the regenerator 12 from the dilute solution tank 21.
The heat exchanger 23, which performs heat exchange between the low-temperature absorption liquid having a low concentration toward the absorber and the high-temperature absorption liquid having a high concentration toward the absorber 20 from the regenerator 12, absorbs the refrigerant to reduce the concentration. Replenished liquid from the dilute solution tank 21 to the regenerator 12
The pump 24 for delivering to the evaporator is a pressure loss member such as a capillary provided between the upstream side of the evaporator 10 and the downstream side of the condenser 16.
【００２３】Ｖ１、Ｖ２、Ｖ３、Ｖ４、Ｖ５は弁であ
り、特にＶ４は逆止機能つきの弁である。V1, V2, V3, V4 and V5 are valves, and particularly V4 is a valve having a check function.
【００２４】以上の構成部品が図示したように配管され
ている。The above components are piped as shown.
【００２５】次に、空調装置の動作を制御する電気回路
について説明する。Next, an electric circuit for controlling the operation of the air conditioner will be described.
【００２６】Ｔ１は蒸発器１０の上流側に設けられた室
内温度検出用のセンサ、Ｔ２は送風温度検出用のセン
サ、、Ｔ３は再生器の液面レベル検出用のセンサ、Ｔ４
は凝縮器温度検出用のセンサである。T1 is a sensor for detecting the room temperature provided on the upstream side of the evaporator 10, T2 is a sensor for detecting the temperature of the blown air, T3 is a sensor for detecting the liquid level of the regenerator, and T4.
Is a sensor for detecting the condenser temperature.
【００２７】ＣＰＵ、メモリ、駆動回路からなるコント
ローラ３０と、リモコン６（図２参照）からの設定信号
を室内機２の受信部２ａで受け、受信部２ａからの信号
を受ける通信制御器３１とが設けられており、コントロ
ラ３０はセンサＴ１、Ｔ２、Ｔ３、Ｔ４からの信号と、
通信制御器３１からの信号とを受け、送風ファン１１、
空冷ファン１７、ポンプ２３、燃料供給管１４の燃料制
御弁１５の動作を制御するようになっている。A controller 30 including a CPU, a memory, and a drive circuit, and a communication controller 31 that receives a setting signal from the remote controller 6 (see FIG. 2) at the receiving section 2a of the indoor unit 2 and receives a signal from the receiving section 2a. Is provided, and the controller 30 receives signals from the sensors T1, T2, T3, and T4,
Upon receiving a signal from the communication controller 31, the blower fan 11,
The operations of the air cooling fan 17, the pump 23, and the fuel control valve 15 of the fuel supply pipe 14 are controlled.
【００２８】次に図３を参照して冷房サイクルの動作の
１例を説明する。Next, an example of the operation of the cooling cycle will be described with reference to FIG.
【００２９】運転開始前は、弁Ｖ１、Ｖ３，Ｖ５は閉じ
ており、弁Ｖ２は開いている。再生器１２は空の状態に
なっている。Before the start of operation, the valves V1, V3 and V5 are closed and the valve V2 is open. The regenerator 12 is empty.
【００３０】リモコン６の運転ボタンをオンすると、弁
Ｖ３が開き（Ｆ−１）、モータＭ2が駆動されてポンプ
２３により希溶液タンク２１から吸収液が再生器１２に
送出される（Ｆ−２）。その他の弁はそのままの状態で
ある。このときコントローラ３０のＣＰＵはセンサＴ４
からの信号を見て再生器１２の液面が規定のレベルに達
しているか否かを判断する（Ｆ−３）。液面が規定のレ
ベルに達しているときは、燃料制御弁１５を開いて燃料
供給管１４から燃料ガスを供給しバーナ１３に点火する
（Ｆ−４）。再生器１２で冷媒蒸気が発生し凝縮器１６
に流れ、凝縮器１６の温度が次第に上昇する。コントロ
ーラ３０のＣＰＵはセンサＴ４からの信号から凝縮器１
６の温度が所定値に達したか否かを判断し（Ｆ−５）、
所定値に達したときは弁Ｖ１とＶ５を開いて弁Ｖ２を閉
じ（Ｆ−６）、送風ファン１１と空冷ファン１７を回転
する（Ｆ−７）。その結果、凝縮器１６では再生器１２
から送られてくる冷媒蒸気が液化し、Ｖ５が開のときは
冷媒タンク１８（このとき空冷ファン１７により空冷さ
れている）に流れ込むがＶ５が閉のときキャピラリ２４
を通って蒸発器１０に流れ込み、蒸発器１０では冷媒が
蒸発して蒸発潜熱を奪い、それによって送風ファン１１
により吸気ダクト４を通って室内から送られてくる空気
を冷却する。冷却された空気は送風ダクト３を通って室
内機２に送られ、室５内に冷風として吹き出され、室５
が冷房される（Ｆ−８）。When the operation button of the remote controller 6 is turned on, the valve V3 is opened (F-1), the motor M2 is driven and the pump 23 sends the absorbing solution from the dilute solution tank 21 to the regenerator 12 (F-2). ). The other valves remain as they are. At this time, the CPU of the controller 30 uses the sensor T4
It is determined whether the liquid level of the regenerator 12 has reached the specified level by observing the signal from (F-3). When the liquid level has reached the specified level, the fuel control valve 15 is opened to supply the fuel gas from the fuel supply pipe 14 to ignite the burner 13 (F-4). Refrigerant vapor is generated in the regenerator 12 and the condenser 16
The temperature of the condenser 16 gradually rises. The CPU of the controller 30 uses the signal from the sensor T4 to determine the condenser 1
It is judged whether the temperature of 6 has reached a predetermined value (F-5),
When the predetermined value is reached, the valves V1 and V5 are opened, the valve V2 is closed (F-6), and the blower fan 11 and the air cooling fan 17 are rotated (F-7). As a result, in the condenser 16, the regenerator 12
The refrigerant vapor sent from is liquefied and flows into the refrigerant tank 18 (air-cooled by the air-cooling fan 17 at this time) when V5 is open, but the capillary 24 when V5 is closed.
Flow into the evaporator 10 and the refrigerant evaporates in the evaporator 10 to remove the latent heat of evaporation, whereby the blower fan 11
Thereby cools the air sent from the room through the intake duct 4. The cooled air is sent to the indoor unit 2 through the air duct 3 and blown into the room 5 as cold air.
Is cooled (F-8).
【００３１】この冷房動作においては、蒸発器１０で蒸
発して蒸気となった冷媒は吸収器２０に流れ込み、そこ
で吸収液に吸収される。冷媒を吸収して濃度が小さくな
った吸収液は一旦希溶液タンク２１に入った後ポンプ２
３により弁Ｖ３を通って熱交換器２２で再生器１２から
送り出される濃度の大きい高温の吸収液と熱交換され、
再生器１２に送り込まれる。この状態が運転の定常モー
ドである。この間、溶液の濃縮が必要であるならば弁Ｖ
５は開、閉を繰り返す。In this cooling operation, the refrigerant evaporated in the evaporator 10 to become vapor flows into the absorber 20 where it is absorbed by the absorbing liquid. The absorbing liquid, which has absorbed the refrigerant and becomes low in concentration, once enters the dilute solution tank 21 and then the pump 2
3 heat-exchanges with the concentrated high-temperature absorption liquid sent from the regenerator 12 in the heat exchanger 22 through the valve V3,
It is sent to the regenerator 12. This state is the steady mode of operation. During this time, if it is necessary to concentrate the solution, valve V
5 repeats opening and closing.
【００３２】ここで冷房運転中における系の各部におけ
る容器および吸収液、冷媒の温度および圧力を例示する
と次のようになる。Here, the temperatures and pressures of the container, the absorbing liquid and the refrigerant in each part of the system during the cooling operation will be exemplified as follows.
【００３３】 温 度（℃） 圧 力（Ｔｏｒｒ） 蒸発器１０： １０〜２０ １０〜２０ 再生器１２： ６０〜９０ ９０〜１１０ 凝縮器１６： ５０〜８０ ９０〜１１０ 吸収器２０： ４５〜５０ １１ 冷媒タンク１８： ３０〜５０ ４０〜５０ 希溶液タンク２１：４０〜６０ １１ 熱交換器２２： ３５〜４０ ― 吸気ダクト４： ２６ ― 送風ダクト３： １３〜２０ ― 希溶液： ３５〜４０ 濃度：６１％ 濃溶液： ９０ 濃度：６４．８％ リモコン６の運転ボタンをオフすると（Ｆ−９）、送風
ファン１１、空冷ファン１７が停止するが（Ｆ−１
０）、その間冷媒タンク１８内の冷媒および再生器１２
内の吸収液が通常は希溶液タンク２１にすべて流れ込
む。これは装置が停止している間に吸収液により冷媒タ
ンク１８や再生器１２が腐食するのを防止するためであ
る。わずかな時間遅れてポンプ２３が停止し（Ｆ−１
１）、系全体のすべての液の流れが停止する。Temperature (° C.) Pressure (Torr) Evaporator 10:10 to 20 10 to 20 Regenerator 12: 60 to 90 90 to 110 Condenser 16: 50 to 80 90 to 110 Absorber 20: 45 to 50 11 Refrigerant tank 18: 30-50 50-40 50 Dilute solution tank 21: 40-60 11 Heat exchanger 22: 35-40- Intake duct 4: 26- Blower duct 3: 13-20- Dilute solution: 35-40 Concentration : 61% concentrated solution: 90 concentration: 64.8% When the operation button of the remote controller 6 is turned off (F-9), the blower fan 11 and the air cooling fan 17 are stopped (F-1).
0), meanwhile, the refrigerant in the refrigerant tank 18 and the regenerator 12
Normally, all of the absorbing liquid inside flows into the dilute solution tank 21. This is to prevent the refrigerant tank 18 and the regenerator 12 from being corroded by the absorbing liquid while the apparatus is stopped. The pump 23 stops with a slight delay (F-1
1), the flow of all liquids in the entire system stops.
【００３４】[0034]
【発明の効果】以上説明したように、本発明によれば、
希溶液タンクから前記冷媒タンクへの逆流を防止するた
め前記冷媒タンクと前記希溶液タンクとの間に逆止弁を
備えた直結管を接続し且つ溶液の濃縮過程で前記冷媒タ
ンク内部の圧力を前記蒸発器の圧力と平衡させるため前
記冷媒タンクと前記希溶液タンクとを直結した通路部を
設けたので、溶液の濃縮過程で冷媒タンク内部の圧力が
蒸発器の圧力と平衡を保ちながら冷媒タンクに冷媒が蓄
積されていくので、冷媒の温度によらず凝縮器から冷媒
タンクに所定量の冷媒を溜めることができ、また更に冷
媒タンクのオーバフローを防いで結晶化を防止できると
いう優れた効果が得られる。As described above, according to the present invention,
In order to prevent the reverse flow from the dilute solution tank to the refrigerant tank, a direct connection pipe having a check valve is connected between the refrigerant tank and the dilute solution tank, and the pressure inside the refrigerant tank is increased during the concentration process of the solution. In order to equilibrate with the pressure of the evaporator, since the passage portion directly connecting the refrigerant tank and the dilute solution tank is provided, the refrigerant tank while the pressure inside the refrigerant tank is in equilibrium with the pressure of the evaporator during the concentration process of the solution. Since the refrigerant accumulates in the refrigerant, it is possible to accumulate a predetermined amount of refrigerant from the condenser in the refrigerant tank regardless of the temperature of the refrigerant, and to prevent the overflow of the refrigerant tank and prevent crystallization. can get.
【図１】本発明による空調装置の一実施例の要部のブロ
ック図である。FIG. 1 is a block diagram of a main part of an embodiment of an air conditioner according to the present invention.
【図２】本発明による空調装置の設置状態を示す。FIG. 2 shows an installed state of an air conditioner according to the present invention.
【図３】本発明による空調装置の運転の定常モードのフ
ローチャートを示す。FIG. 3 shows a flow chart of a steady mode of operation of an air conditioner according to the present invention.
１ 室外機 ２ 室内機 ３ 送風ダクト ４ 吸気ダクト ５ 室 ６ リモコン １０ 蒸発器 １１ 送風ファン １２ 再生器 １３ バーナ １６ 凝縮器 １７ 空冷ファン １８ 冷媒タンク ２０ 吸収器 ２１ 希溶液タンク ２５ 通路部 ２６ 直結管 ３０ コントローラ ３１ 通信制御器 Ｔ１、Ｔ２、Ｔ３、Ｔ４ センサ Ｖ１、Ｖ２、Ｖ３、Ｖ４、Ｖ５ 弁 1 Outdoor unit 2 Indoor unit 3 Blower duct 4 Intake duct 5 Room 6 Remote control 10 Evaporator 11 Blower fan 12 Regenerator 13 Burner 16 Condenser 17 Air-cooling fan 18 Refrigerant tank 20 Absorber 21 Dilute solution tank 25 Passage part 26 Direct connection pipe 30 Controller 31 Communication controller T1, T2, T3, T4 Sensor V1, V2, V3, V4, V5 valve
Claims (1)
た吸収液に冷媒としての水を吸収させた希溶液を加熱し
て冷媒蒸気を発生させる再生器と、前記再生器で発生し
た冷媒蒸気を空冷により凝縮する凝縮器と、空調対象室
内空気の流通するダクト内に配置され且つ前記凝縮器に
キャピラリー等の圧損部材を介して連通された蒸発器
と、前記蒸発器で蒸発した冷媒を吸収する吸収液を投入
する空冷式吸収器と、前記凝縮器に弁を介して連通され
た冷媒タンクと、前記吸収器と前記再生器との間に連結
された希溶液タンクとを備え前記希溶液タンクから前記
冷媒タンクへの逆流を防止するため前記冷媒タンクと前
記希溶液タンクとの間に逆止弁を備えた直結管を接続し
吸収式冷凍機を用いた空調装置において、溶液の濃縮過
程で前記冷媒タンク内部の圧力を前記蒸発器の圧力と平
衡させるため前記冷媒タンクと前記希溶液タンクとを直
結した通路部を設けたことを特徴とする吸収式冷凍機を
用いた空調装置。1. A regenerator for generating a refrigerant vapor by heating a dilute solution in which water as a refrigerant is absorbed in an absorption liquid containing an aqueous lithium bromide solution as a main component, and a refrigerant vapor generated in the regenerator by air cooling. A condenser that condenses, an evaporator that is arranged in a duct through which air to be conditioned in the room flows, and that is in communication with the condenser via a pressure loss member such as a capillary, and an absorbing liquid that absorbs the refrigerant evaporated in the evaporator. An air-cooled absorber for charging, a refrigerant tank communicated with the condenser via a valve, and a dilute solution tank connected between the absorber and the regenerator. In an air conditioner using a direct connection pipe equipped with a check valve between the refrigerant tank and the dilute solution tank to prevent backflow to the refrigerant tank, the refrigerant in the process of concentrating the solution In the tank An air conditioner using an absorption refrigerating machine, characterized in that a passage part is provided which directly connects the refrigerant tank and the dilute solution tank in order to equilibrate the pressure of the part with the pressure of the evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05254852A JP3142997B2 (en) | 1993-09-17 | 1993-09-17 | Air conditioner using absorption refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05254852A JP3142997B2 (en) | 1993-09-17 | 1993-09-17 | Air conditioner using absorption refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0791767A true JPH0791767A (en) | 1995-04-04 |
| JP3142997B2 JP3142997B2 (en) | 2001-03-07 |
Family
ID=17270747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05254852A Expired - Fee Related JP3142997B2 (en) | 1993-09-17 | 1993-09-17 | Air conditioner using absorption refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3142997B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185413A (en) * | 2013-04-28 | 2013-07-03 | 郭旭光 | Core of diffusion absorption refrigerator |
-
1993
- 1993-09-17 JP JP05254852A patent/JP3142997B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185413A (en) * | 2013-04-28 | 2013-07-03 | 郭旭光 | Core of diffusion absorption refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3142997B2 (en) | 2001-03-07 |
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