JPH0833259B2 - Absorption chiller / heater control method - Google Patents
Absorption chiller / heater control methodInfo
- Publication number
- JPH0833259B2 JPH0833259B2 JP2071657A JP7165790A JPH0833259B2 JP H0833259 B2 JPH0833259 B2 JP H0833259B2 JP 2071657 A JP2071657 A JP 2071657A JP 7165790 A JP7165790 A JP 7165790A JP H0833259 B2 JPH0833259 B2 JP H0833259B2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- refrigerant liquid
- evaporator
- cold water
- temperature
- 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.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/006—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the sorption type system
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は冷凍サイクルの高音側に温水器を付設した吸
収冷温水機の制御方法に関する。TECHNICAL FIELD The present invention relates to a control method for an absorption chiller-heater in which a water heater is attached to the high-pitched side of a refrigeration cycle.
（ロ）従来の技術 例えば、特公昭58−34730号公報には高温発生器に温
水器を付設し、蒸発器に設けられた冷水器と温水器とか
ら冷水と温水とを同時に供給する吸収冷温水機が開示さ
れている。この吸収冷温水機では冷房負荷が暖房負荷よ
りも大きい領域、即ち冷房主制御時では、冷水出口温度
を検出し、高温発生器の熱源供給路に設けられた燃料制
御弁の開度、及び吸収器と吸収液ポンプの出口側の稀液
管との間の側路管に設けられた吸収液制御弁の開度を調
節し、冷水器から冷房負荷に供給される冷水の温度を制
御する。又、温水出口温度を検出し、温水器の冷媒液面
を変化させて熱交換面積を変化させ、温水器から暖房負
荷に供給される温水の温度を制御する。(B) Conventional technology For example, in Japanese Patent Publication No. 58-34730, a hot water generator is attached to a high temperature generator, and an absorption cold temperature is provided to simultaneously supply cold water and hot water from a cold water heater and a hot water heater provided in an evaporator. A water machine is disclosed. In this absorption chiller-heater, the cooling water outlet temperature is detected in a region where the cooling load is larger than the heating load, that is, during the cooling main control, the opening of the fuel control valve provided in the heat source supply path of the high temperature generator, and the absorption The temperature of the cold water supplied from the water cooler to the cooling load is controlled by adjusting the opening degree of the absorption liquid control valve provided in the bypass pipe between the cooling device and the dilute liquid pipe on the outlet side of the absorption liquid pump. Further, the hot water outlet temperature is detected, the liquid level of the refrigerant in the water heater is changed to change the heat exchange area, and the temperature of the hot water supplied from the water heater to the heating load is controlled.
又、暖房負荷が冷房負荷よりも大きい領域、即ち暖房
主制御時では、温水出口温度を検出して、燃料制御弁の
開度を調節し、暖房負荷に供給される温水の温度を制御
する。又、冷水出口温度を検出し、吸収液制御弁の開度
を調節すると共に、低温発生器と凝縮器との間の冷媒蒸
気管に設けられた第２冷媒制御弁の開度を調節し、さら
に、冷房負荷が０〜50％の場合には上記第２冷媒制御弁
が全閉状態に保持される。In a region where the heating load is larger than the cooling load, that is, in the heating main control, the hot water outlet temperature is detected, the opening of the fuel control valve is adjusted, and the temperature of the hot water supplied to the heating load is controlled. In addition, the cold water outlet temperature is detected, the opening degree of the absorption liquid control valve is adjusted, and the opening degree of the second refrigerant control valve provided in the refrigerant vapor pipe between the low temperature generator and the condenser is adjusted, Further, when the cooling load is 0 to 50%, the second refrigerant control valve is held in the fully closed state.
さらに、特公昭55−9620号公報には、冷暖房同時運転
時に暖房負荷が冷房負荷より大きいときに、冷媒液の一
部を吸収器に入る濃溶液の系路に流し、吸収器又は濃溶
液の系路に流れる冷媒液の量を調節して冷房能力を制御
するようにした吸収式冷暖房装置が開示されている。Further, in Japanese Examined Patent Publication No. 55-9620, when the heating load is larger than the cooling load during the simultaneous heating and cooling operation, a part of the refrigerant liquid is caused to flow through the path of the concentrated solution that enters the absorber, An absorption type cooling and heating apparatus is disclosed in which the cooling capacity is controlled by adjusting the amount of refrigerant liquid flowing in a system path.
（ハ）発明が解決しようとする課題 上記特公昭58−34730号公報に示された吸収冷温水機
において、暖房主制御時、冷房負荷が僅かな場合には、
第２冷媒制御弁を全閉状態にするが、低温発生器にて冷
媒蒸気が発生して、この冷媒蒸気が凝縮器に溜り、凝縮
器から蒸発器へ流れる。このため、蒸発器で冷水が冷却
され、冷水の温度が過低下するおそれがあった。又、上
記特公昭55−9620号公報に示された吸収式冷暖房装置に
おいて、冷媒液を濃溶液の系路に流し、吸収器の吸収能
力を調整した場合、凝縮器に溜っている冷媒の一部は継
続して蒸発器にて散布され、蒸発器にて冷水が冷却さ
れ、冷水の温度が過低下するおそれがあった。(C) Problem to be Solved by the Invention In the absorption chiller-heater disclosed in Japanese Patent Publication No. 58-34730, when the heating main control is performed and the cooling load is small,
Although the second refrigerant control valve is fully closed, refrigerant vapor is generated in the low-temperature generator, the refrigerant vapor accumulates in the condenser, and flows from the condenser to the evaporator. Therefore, the cold water may be cooled by the evaporator, and the temperature of the cold water may be excessively lowered. Further, in the absorption type cooling and heating device disclosed in the above Japanese Patent Publication No. 55-9620, when the refrigerant liquid is caused to flow through the concentrated solution passage to adjust the absorption capacity of the absorber, one of the refrigerant accumulated in the condenser is The parts were continuously sprayed by the evaporator, the cold water was cooled by the evaporator, and the temperature of the cold water might be excessively lowered.
本発明は、暖房主制御時（温水主制御時）の冷水温度
の過低下、及び、溶液の濃縮を防止することを目的とす
る。An object of the present invention is to prevent an excessive decrease in cold water temperature during heating main control (during hot water main control) and to prevent solution concentration.
（ニ）課題を解決するための手段 本発明は上記課題を解決するために、高温発生器
（１）、凝縮器（３）、蒸発器（４）、吸収器（５）な
どを接続して蒸発器（４）から冷水を取り出すようにし
た冷凍サイクルと、この冷凍サイクルの高温側に配設し
た温水器（35）とから冷水と温水とを同時に取り出すよ
うに構成し、高温発生器（１）と凝縮器（３）との間の
冷媒管（17）に設けられた冷媒制御弁（30）の開度を蒸
発器（４）の冷水出口側の温度に応じて調節し、かつ、
高温発生器（１）の加熱量を温水器（35）の温水出口側
の温度に応じて調節する吸収冷温水器の制御方法におい
て、凝縮器（３）と吸収器（４）との間に冷媒液戻し管
（51）を接続し、この冷媒液戻し管（51）に電磁弁（3
3）を設け、この電磁弁（33）を蒸発器（４）の冷水出
口側の温度に応じて開閉制御する吸収冷温水機の制御方
法を提供するものである。(D) Means for Solving the Problems In order to solve the above problems, the present invention connects a high temperature generator (1), a condenser (3), an evaporator (4), an absorber (5) and the like. The refrigeration cycle in which cold water is taken out from the evaporator (4) and the water heater (35) arranged on the high temperature side of this refrigeration cycle are configured to take out cold water and hot water at the same time, and the high temperature generator (1 ) And the condenser (3), the opening of a refrigerant control valve (30) provided in the refrigerant pipe (17) is adjusted according to the temperature of the cold water outlet side of the evaporator (4), and
In a method of controlling an absorption chiller-heater that adjusts the heating amount of the high temperature generator (1) according to the temperature of the hot water outlet side of the water heater (35), between the condenser (3) and the absorber (4). The refrigerant liquid return pipe (51) is connected, and the solenoid valve (3
A method for controlling an absorption chiller-hot water machine is provided, in which the electromagnetic valve (33) is provided and the opening and closing of the electromagnetic valve (33) is controlled according to the temperature of the cold water outlet side of the evaporator (4).
又、凝縮器（３）に設けられた冷媒液溜め（3A）と蒸
発器（４）との間に冷媒液流下管（50）を接続すると共
に、冷媒液溜め（3A）と吸収器（５）との間に冷媒液戻
し管（51）を接続し、この冷媒液戻し管（51）の冷媒液
溜め（3A）側の開口（51A）を冷媒液流下管（50）の開
口（50A）より下方に設け、かつ、冷媒液戻し管（51）
に電磁弁（33）を設け、この電磁弁（33）を蒸発器
（４）の冷水出口側の温度に応じて開閉制御する吸収冷
温水機の制御方法を提供するものである。A refrigerant liquid flow-down pipe (50) is connected between the refrigerant liquid reservoir (3A) provided in the condenser (3) and the evaporator (4), and the refrigerant liquid reservoir (3A) and the absorber (5) are connected. ) Is connected to the refrigerant liquid return pipe (51), and the opening (51A) on the refrigerant liquid reservoir (3A) side of the refrigerant liquid return pipe (51) is connected to the opening (50A) of the refrigerant liquid downflow pipe (50). The refrigerant liquid return pipe (51) provided below
The present invention provides a method for controlling an absorption chiller-hot water machine, in which a solenoid valve (33) is provided, and the solenoid valve (33) is controlled to open and close according to the temperature of the cold water outlet side of the evaporator (4).
さらに、凝縮器（３）と蒸発器（４）との間に接続さ
れた冷媒液流下管（18）と吸収器（５）との間に冷媒液
戻し管（31）を接続し、この冷媒液戻し管（31）に電磁
弁（33）を設け、この電磁弁（33）を蒸発器（４）の冷
水出口側の温度に応じて開閉制御する吸収冷温水機の制
御方法を提供するものである。Further, a refrigerant liquid return pipe (31) is connected between the refrigerant liquid flow-down pipe (18) connected between the condenser (3) and the evaporator (4) and the absorber (5). Provided is a liquid return pipe (31) provided with an electromagnetic valve (33), and a method for controlling an absorption chiller-heater in which the electromagnetic valve (33) is controlled to open and close according to the temperature of the cold water outlet side of the evaporator (4). Is.
（ホ）作 用 冷水出口側の温度が低下して設定温度になった場合に
は、冷媒制御弁（30）が全閉すると共に、さらに冷水温
度が低下した場合には、冷媒液戻し管（31）、或いは
（51）に設けられた電磁弁（33）が開き、凝縮器（３）
の冷媒液が冷媒液戻し管（31）或いは（51）を経て吸収
器（５）へ流れ、蒸発器（４）への冷媒液の供給が停止
するとともに吸収器（５）の吸収液が稀釈され、蒸発器
（４）の冷媒液の凍結、或いは冷水温度の過低下を回避
することが可能になる。(E) Operation When the temperature of the chilled water outlet side drops to the set temperature, the refrigerant control valve (30) is fully closed, and when the chilled water temperature further drops, the refrigerant liquid return pipe ( 31) or the solenoid valve (33) provided in (51) opens and the condenser (3)
Of the refrigerant liquid flows to the absorber (5) through the refrigerant liquid return pipe (31) or (51), the supply of the refrigerant liquid to the evaporator (4) is stopped, and the absorption liquid of the absorber (5) is diluted. This makes it possible to avoid freezing of the refrigerant liquid in the evaporator (4) or avoiding an excessive drop in the cold water temperature.
又、冷水出口側の温度が低下して設定温度になった場
合には、冷媒制御弁（30）が全閉すると共に冷媒液戻し
管（51）に設けられた電磁弁（33）が開き、冷媒液流下
管（50）の開口（50A）より下方に設けられた開口（51
A）から冷媒液が冷媒液戻し管（51）へ流入し、冷媒液
が開口（50A）から冷媒液流下管（50）へ流入しなくな
り、冷媒液溜め（3A）の冷媒液が総て吸収器（５）へ流
れ、蒸発器（４）への冷媒液の供給が確実に停止され、
かつ、吸収器（５）の吸収液が短時間で稀釈され、蒸発
器（４）の冷媒液の凍結、或いは冷水温度の低下を回避
することが可能になる。Also, when the temperature on the cold water outlet side drops to the set temperature, the refrigerant control valve (30) is fully closed and the solenoid valve (33) provided in the refrigerant liquid return pipe (51) is opened, The opening (51) provided below the opening (50A) of the refrigerant liquid flow down pipe (50).
The refrigerant liquid flows into the refrigerant liquid return pipe (51) from A), the refrigerant liquid does not flow into the refrigerant liquid downflow pipe (50) from the opening (50A), and all the refrigerant liquid in the refrigerant liquid reservoir (3A) is absorbed. Flowing to the evaporator (5), the supply of the refrigerant liquid to the evaporator (4) is surely stopped,
In addition, the absorbing liquid in the absorber (5) is diluted in a short time, and it becomes possible to avoid freezing of the refrigerant liquid in the evaporator (4) or reduction of the cold water temperature.
（ヘ）実施例 以下、本発明の一実施例を図面に基づいて詳細に説明
する。(F) Embodiment Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.
第１図に示したものは吸収冷温水機であり、冷媒に水
（H2O）、吸収剤（吸収液）に臭化リチウム（LiBr）水
溶液を使用したものである。What is shown in FIG. 1 is an absorption chiller-heater, which uses water (H 2 O) as a refrigerant and an aqueous lithium bromide (LiBr) solution as an absorbent (absorption liquid).
第１図において、（１）はガスバーナ（1B）を備えた
高温発生器、（２）は低温発生器、（３）は凝縮器、
（3A）は冷媒液溜め、（４）は蒸発器、（５）は吸収
器、（６）は低温熱交換器、（７）は高温熱交換器、
（８）ないし（14）は吸収液管、（15）は吸収液ポン
プ、（16）及び（17）は冷媒管、（18）冷媒液流下管、
（19）は冷媒液循環管、（19P）は冷媒ポンプ、（20）
はバーナ（1B）に接続されたガス配管、（21）は加熱量
制御弁、（22）は冷水配管、（23）は蒸発器熱交換器で
あり、それぞれは第１図に示したように配管接続されて
いる。又、（Ａ）は蒸発吸収器胴、（Ｂ）は発生凝縮器
胴である。さらに、（25）は冷却水配管であり、この冷
却水配管（25）の途中には吸収器熱交換器（26）、及び
凝縮器熱交換器（27）が設けられている。In FIG. 1, (1) is a high temperature generator equipped with a gas burner (1B), (2) is a low temperature generator, (3) is a condenser,
(3A) is a refrigerant reservoir, (4) is an evaporator, (5) is an absorber, (6) is a low temperature heat exchanger, (7) is a high temperature heat exchanger,
(8) to (14) are absorption liquid pipes, (15) is an absorption liquid pump, (16) and (17) are refrigerant pipes, (18) refrigerant liquid flow-down pipe,
(19) is a refrigerant liquid circulation pipe, (19P) is a refrigerant pump, (20)
Is a gas pipe connected to the burner (1B), (21) is a heating amount control valve, (22) is cold water pipe, and (23) is an evaporator heat exchanger, each as shown in FIG. Piping is connected. Further, (A) is an evaporative absorber cylinder, and (B) is a generating condenser cylinder. Further, (25) is a cooling water pipe, and an absorber heat exchanger (26) and a condenser heat exchanger (27) are provided in the middle of the cooling water pipe (25).
又、（30）は冷媒管（17）に設けられた冷媒ドレン制
御弁（冷媒制御弁）、（31）は第１冷媒液戻し管、（3
2）は第２冷媒液戻し管であり、第１冷媒液戻し管（3
1）の一端は冷媒液流下管（18）に接続され、他端は吸
収器（５）内の気相部に開口している。そして、第１冷
媒液戻し管（31）の途中に第１電磁弁（33）が設けられ
ている。又、第２冷媒液戻し管（32）の一端は冷媒ポン
プ（19P）の出口側の冷媒液循環管（19）に接続され、
他端は吸収器（５）内の気相部に開口している。そし
て、この第２冷媒液戻し管（32）の途中に第２電磁弁
（34）が設けられている。Further, (30) is a refrigerant drain control valve (refrigerant control valve) provided in the refrigerant pipe (17), (31) is a first refrigerant liquid return pipe, and (3)
2) is the second refrigerant liquid return pipe, and the first refrigerant liquid return pipe (3
One end of 1) is connected to the refrigerant liquid flow-down pipe (18), and the other end is open to the gas phase part in the absorber (5). A first solenoid valve (33) is provided in the middle of the first refrigerant liquid return pipe (31). Further, one end of the second refrigerant liquid return pipe (32) is connected to the refrigerant liquid circulation pipe (19) on the outlet side of the refrigerant pump (19P),
The other end is open to the gas phase inside the absorber (5). A second electromagnetic valve (34) is provided in the middle of the second refrigerant liquid return pipe (32).
（35）は高温発生器（１）に付設された温水器、（3
6）は温水器（35）の下部と高温発生器（１）との間に
接続された冷媒ドレン管であり、この冷媒ドレン管（3
6）の途中に温水ドレン制御弁（37）が設けられてい
る。又、（38）は温水配管であり、この温水配管（38）
の途中に温水器熱交換器（40）が設けられている。(35) is a water heater attached to the high temperature generator (1), (3
6) is a refrigerant drain pipe connected between the lower part of the water heater (35) and the high temperature generator (1), and this refrigerant drain pipe (3
A hot water drain control valve (37) is provided in the middle of 6). Also, (38) is a hot water pipe, and this hot water pipe (38)
A water heater heat exchanger (40) is provided on the way.
さらに、（41）は上記吸収冷温水機の制御装置、（4
2）は冷水配管（22）に取り付けられた冷水出口温度検
出器、（43）は温水配管（38）に取り付けられた温水出
口温度検出器であり、これらの温度検出器（42），（4
3）、冷媒ドレン制御弁（30）、第1,第２電磁弁（3
3），（34）、温水ドレン制御弁（37）、及び加熱量制
御弁（21）は制御装置（41）に接続されている。そし
て、制御装置（41）には冷水出口温度と温水出口温度と
に応じて冷水主制御と温水主制御とを切換える冷主温主
切換装置（41A）が設けられている。又、制御装置（4
1）は各温度検出器（42），（43）の検出温度に応じて
各電磁弁（33），（34）へ開閉信号を出力し、各制御弁
（30），（37），（21）へ開度信号を出力する。Further, (41) is the control device for the absorption chiller-heater, and (4)
2) is a cold water outlet temperature detector attached to the cold water pipe (22), (43) is a hot water outlet temperature detector attached to the hot water pipe (38), and these temperature detectors (42), (4
3), refrigerant drain control valve (30), first and second solenoid valve (3
3), (34), the hot water drain control valve (37), and the heating amount control valve (21) are connected to the control device (41). The control device (41) is provided with a cold main temperature main switching device (41A) that switches between cold water main control and hot water main control according to the cold water outlet temperature and the hot water outlet temperature. In addition, the control device (4
1) outputs an opening / closing signal to each solenoid valve (33), (34) according to the detected temperature of each temperature detector (42), (43), and each control valve (30), (37), (21). ) To an opening signal.
上記のように構成された吸収冷温水機の運転時、例え
ば冷水出口温度が例えば７℃、温水出口温度が例えば60
℃のときには、冷主温主切換装置（41A）が冷水主制御
に切換っており、制御装置（41）にて、冷水主制御の制
御が行われる。ここで、冷水主制御と温水主制御とは第
２図に示したように冷水出口温度と温水出口温度とによ
り決まる。ここで、実線（L1），（L2），（L3）上は冷
水主制御である。冷水主制御の運転が行われているとき
には、制御装置（41）は冷媒ドレン制御弁（30）へ全開
の信号を出力し、第1,第２電磁弁（33），（34）へ閉信
号を出力する。又、制御装置（41）は冷水出口温度検出
器（42）が検出した温度に応じて加熱量制御弁（21）へ
開度信号を出力し、冷水出口温度が上昇したときには加
熱量制御弁（21）の開度は大きくなり、冷水出口温度が
低下したときには加熱量制御弁（21）の開度は小さくな
る。又、吸収液ポンプ（15）、及び冷媒ポンプ（19P）
はそれぞれ運転され、従来の吸収冷温水機と同様に吸収
液、及び冷媒が循環し、蒸発器熱交換器（23）で温度低
下した冷水が負荷へ供給される。During operation of the absorption chiller-heater configured as described above, for example, the cold water outlet temperature is, for example, 7 ° C., and the hot water outlet temperature is, for example, 60 degrees.
When the temperature is ℃, the cold main temperature main switching device (41A) is switched to the cold water main control, and the control device (41) controls the cold water main control. Here, the cold water main control and the hot water main control are determined by the cold water outlet temperature and the hot water outlet temperature as shown in FIG. Here, the solid lines (L 1 ), (L 2 ), and (L 3 ) are the cold water main control. When the chilled water main control operation is being performed, the control device (41) outputs a fully open signal to the refrigerant drain control valve (30) and a close signal to the first and second solenoid valves (33) and (34). Is output. Further, the control device (41) outputs an opening signal to the heating amount control valve (21) according to the temperature detected by the cold water outlet temperature detector (42), and when the cooling water outlet temperature rises, the heating amount control valve (21 The opening of 21) becomes large and the opening of the heating amount control valve (21) becomes small when the cold water outlet temperature decreases. Also, the absorption liquid pump (15) and the refrigerant pump (19P)
Are operated, the absorption liquid and the refrigerant circulate as in the conventional absorption chiller-heater, and the cold water whose temperature has been lowered in the evaporator heat exchanger (23) is supplied to the load.
又、高温発生器（１）で吸収液から分離した冷媒蒸気
の一部は温水器（35）へ流れ、温水器熱交換器（40）を
流れる温水と熱交換して凝縮する。そして、温水器（3
5）にて凝縮した冷媒液は冷媒ドレン管（36）及び温水
ドレン制御弁（37）を経て高温発生器（１）へ戻る。
又、温水器熱交換器（40）にて温度上昇した温水が負荷
へ供給される。ここで、制御装置（41）は温水出口温度
検出器（43）が検出した温度に応じて温水ドレン制御弁
（37）へ開度信号を出力する。そして、温水出口温度が
上昇したときには、温水ドレン制御弁（37）の開度は小
さくなり、温水器（35）を冷媒液面が上昇する。このた
め、温水器熱交換器（40）の熱交換面積が減少し、熱交
換量が減少して温水出口温度は低下する。又、温水出口
温度が低下したときには、温水ドレン制御弁（37）の開
度は大きくなり、温水器（35）の冷媒液面が低下する。
このため、温水器熱交換器（40）の熱交換面積が増大
し、熱交換量が増加して温水出口温度は上昇する。上記
のように冷水主制御が行われているとき、冷水出口温度
に応じて加熱量制御弁（21）の開度が変化し、高温発生
器（１）の冷媒蒸気の発生量が変化して冷水出口温度が
ほぼ設定温度に保たれる。又、温水出口温度に応じて温
水ドレン制御弁（37）の開度が変化し、温水器（35）の
熱交換量が変化して温水出口温度がほぼ設定温度に保た
れる。Further, a part of the refrigerant vapor separated from the absorbing liquid in the high temperature generator (1) flows into the water heater (35) and exchanges heat with the hot water flowing in the water heater heat exchanger (40) to be condensed. And the water heater (3
The refrigerant liquid condensed in 5) returns to the high temperature generator (1) through the refrigerant drain pipe (36) and the hot water drain control valve (37).
Further, hot water whose temperature has risen in the water heater heat exchanger (40) is supplied to the load. Here, the control device (41) outputs an opening degree signal to the hot water drain control valve (37) according to the temperature detected by the hot water outlet temperature detector (43). Then, when the hot water outlet temperature rises, the opening degree of the hot water drain control valve (37) becomes smaller, and the liquid level of the refrigerant in the water heater (35) rises. Therefore, the heat exchange area of the water heater heat exchanger (40) decreases, the heat exchange amount decreases, and the hot water outlet temperature decreases. Further, when the temperature of the hot water outlet decreases, the opening degree of the hot water drain control valve (37) increases, and the liquid level of the refrigerant in the water heater (35) decreases.
Therefore, the heat exchange area of the hot water heat exchanger (40) increases, the amount of heat exchange increases, and the hot water outlet temperature rises. When the chilled water main control is performed as described above, the opening degree of the heating amount control valve (21) changes according to the chilled water outlet temperature, and the generation amount of the refrigerant vapor of the high temperature generator (1) changes. The cold water outlet temperature is maintained at about the set temperature. Further, the opening degree of the hot water drain control valve (37) changes according to the hot water outlet temperature, the heat exchange amount of the water heater (35) changes, and the hot water outlet temperature is maintained at a substantially set temperature.
又、冷水負荷が減少し、冷水出口温度が例えば６℃よ
り低くなり、温水出口温度が例えば60℃のときには、冷
主温主切換装置（41A）が温水主制御に切換っており、
制御装置（41）にて温水主制御の制御が行われる。この
とき、制御装置（41）は第1,第２電磁弁（33），（34）
へ閉信号を出力するとともに、温水ドレン制御弁（37）
へ全開の信号を出力する。そして、温水ドレン制御弁
（37）は全開する。又、制御装置（41）は冷水出口温度
検出器（42）が検出した温度に応じて冷媒ドレン制御弁
（30）へ開度信号を出力し、冷水出口温度が上昇したと
きには、冷媒ドレン制御弁（30）の開度が大きくなる。
そして、高温発生器（１）から冷媒管（16）、低温発生
器（２）、及び冷媒管（17）を経て凝縮器（３）へ流れ
る冷媒の量が増加し、又、低温発生器（２）での冷媒蒸
気の発生量が増える。このため、凝縮器（３）から蒸発
器（４）へ流れる冷媒液の量が増え、冷水出口温度が低
下する。又、冷水出口温度が低下したときには、冷媒ド
レン制御弁（30）の開度が小さくなる。そして、高温発
生器（１）から凝縮器（３）へ流れる冷媒の量が減少
し、又、低温発生器（２）での冷媒蒸気の発生量が減少
する。このため、凝縮器（３）から蒸発器（４）へ流れ
る冷媒液の量が減少し、冷水出口温度が上昇する。上記
のように温水主制御が行われているとき、冷水出口温度
に応じて加熱量制御弁（21）の開度が変化し、温水出口
温度がほぼ設定温度に保たれる。又、冷水出口温度に応
じて冷媒ドレン制御弁（30）の開度が変化し、冷水出口
温度がほぼ設定温度に保たれる。Further, when the cold water load decreases, the cold water outlet temperature becomes lower than 6 ° C., and the hot water outlet temperature becomes 60 ° C., for example, the cold main temperature main switching device (41A) is switched to the hot water main control,
The control device (41) controls the hot water main control. At this time, the control device (41) controls the first and second solenoid valves (33), (34).
Output a close signal to the hot water drain control valve (37)
Output a fully open signal to. Then, the hot water drain control valve (37) is fully opened. Further, the control device (41) outputs an opening signal to the refrigerant drain control valve (30) according to the temperature detected by the cold water outlet temperature detector (42), and when the cold water outlet temperature rises, the refrigerant drain control valve The opening of (30) becomes large.
Then, the amount of the refrigerant flowing from the high temperature generator (1) to the condenser (3) via the refrigerant pipe (16), the low temperature generator (2), and the refrigerant pipe (17) increases, and the low temperature generator ( The amount of refrigerant vapor generated in 2) increases. Therefore, the amount of the refrigerant liquid flowing from the condenser (3) to the evaporator (4) increases, and the cold water outlet temperature decreases. Further, when the cold water outlet temperature decreases, the opening degree of the refrigerant drain control valve (30) decreases. Then, the amount of refrigerant flowing from the high temperature generator (1) to the condenser (3) decreases, and the amount of refrigerant vapor generated in the low temperature generator (2) decreases. Therefore, the amount of the refrigerant liquid flowing from the condenser (3) to the evaporator (4) is reduced, and the cold water outlet temperature rises. When the hot water main control is performed as described above, the opening degree of the heating amount control valve (21) changes according to the cold water outlet temperature, and the hot water outlet temperature is maintained at substantially the set temperature. Further, the opening degree of the refrigerant drain control valve (30) changes according to the cold water outlet temperature, and the cold water outlet temperature is maintained at a substantially set temperature.
又、温水主制御が行われているとき、冷水負荷が大幅
に減少し僅かになり、冷水出口温度が低下した場合に
は、上記と同様に制御装置（41）から冷媒ドレン制御弁
（30）へ出力される開度信号が変化し、冷媒ドレン制御
弁（30）の開度が小さくなる。そして、さらに、冷水負
荷が減少して例えば零になり、冷水出口温度が低下して
設定温度（例えば６℃）になった場合には冷媒ドレン制
御弁（30）が全閉になる。そして、冷媒は高温発生器
（１）から凝縮器（３）へ流れなくなる。このとき、温
水負荷がある場合は、高温発生器（１）、及び吸収液ポ
ンプ（15）が継続して運転され、吸収液が循環している
ため、高温発生器（１）から中間吸収液が低温発生器
（２）へ流入する。そして、冷却水が凝縮器熱交換器
（27）を流れているため、凝縮器（３）の蒸気圧力が低
く、低温発生器（２）の中間吸収液から冷媒が自己蒸発
し凝縮器（３）で凝縮する。又、上記のように冷水出口
温度が６℃になると制御装置（41）が動作し、第１電磁
弁（33）へ開信号を出力し、第１電磁弁（33）が全開す
る。このため、凝縮器（３）の冷媒溜り（3A）に溜って
いた冷媒液は冷媒液流下管（18）、及び第１冷媒液戻し
管（31）を経て吸収器（５）へ流れる。そして、冷媒ド
レン制御弁（30）が閉じられた凝縮器（３）で凝縮した
冷媒液も冷媒溜り（3A）から吸収器（５）へ流れる。そ
して、蒸発器（４）へ冷媒液が流入しなくなるととも
に、冷媒液が凝縮器（３）から吸収器（５）へ流れ、吸
収器（５）の吸収液が稀釈される。Also, when the hot water main control is being performed and the cold water load is greatly reduced and becomes slight, and the cold water outlet temperature is lowered, the refrigerant drain control valve (30) is removed from the control device (41) in the same manner as above. The opening signal output to the refrigerant changes, and the opening of the refrigerant drain control valve (30) decreases. Then, when the cold water load is further reduced to, for example, zero and the cold water outlet temperature is lowered to the set temperature (for example, 6 ° C.), the refrigerant drain control valve (30) is fully closed. Then, the refrigerant stops flowing from the high temperature generator (1) to the condenser (3). At this time, when there is a hot water load, the high temperature generator (1) and the absorbent liquid pump (15) are continuously operated, and the absorbent liquid is circulated. Flows into the low temperature generator (2). And since the cooling water is flowing through the condenser heat exchanger (27), the vapor pressure of the condenser (3) is low, the refrigerant self-evaporates from the intermediate absorption liquid of the low temperature generator (2), and the condenser (3 ) To condense. Further, as described above, when the cold water outlet temperature reaches 6 ° C., the control device (41) operates, outputs an open signal to the first solenoid valve (33), and the first solenoid valve (33) is fully opened. Therefore, the refrigerant liquid accumulated in the refrigerant reservoir (3A) of the condenser (3) flows to the absorber (5) via the refrigerant liquid flow-down pipe (18) and the first refrigerant liquid return pipe (31). The refrigerant liquid condensed in the condenser (3) with the refrigerant drain control valve (30) closed also flows from the refrigerant pool (3A) to the absorber (5). Then, the refrigerant liquid does not flow into the evaporator (4), the refrigerant liquid flows from the condenser (3) to the absorber (5), and the absorption liquid of the absorber (5) is diluted.
その後、冷水負荷が増加し、冷水出口温度が上昇した
場合には、制御装置（41）が動作し、第１電磁弁（33）
へ閉信号を出力し、第１電磁弁（33）は閉じる。又、制
御装置（41）が冷媒ドレン制御弁（30）へ開度信号を出
力し、冷媒ドレン制御弁（30）が開き、冷媒が冷媒管
（16），（17）を経て凝縮器（３）へ流れる。そして、
冷媒液が凝縮器（３）から蒸発器（４）へ流れる。その
後、冷水負荷がさらに増加して冷水出口温度が上昇した
場合には温水主制御から冷水主制御に切換わる。After that, when the cold water load increases and the cold water outlet temperature rises, the control device (41) operates and the first solenoid valve (33)
A close signal is output to the first solenoid valve (33) to close it. Further, the control device (41) outputs an opening signal to the refrigerant drain control valve (30), the refrigerant drain control valve (30) is opened, and the refrigerant passes through the refrigerant pipes (16) and (17) to the condenser (3). ) Flow to. And
Refrigerant liquid flows from the condenser (3) to the evaporator (4). After that, when the cold water load further increases and the cold water outlet temperature rises, the hot water main control is switched to the cold water main control.
さらに時間が経過して、吸収冷温水機の運転を停止す
るときには、吸収液ポンプ（15）及び冷媒ポンプ（19
P）が所定時間運転を継続するとともに、制御装置（4
1）が第２電磁弁（34）へ開信号を出力し、第２電磁弁
（34）が開く。このため、冷媒ポンプ（19P）から流出
した冷媒が吸収器（５）へ流れ、吸収液の稀釈が短時間
で行われる。When the operation of the absorption chiller-heater is stopped after a further lapse of time, the absorption liquid pump (15) and the refrigerant pump (19
P) continues operation for a predetermined time, and the control device (4
1) outputs an open signal to the second solenoid valve (34), and the second solenoid valve (34) opens. Therefore, the refrigerant flowing out of the refrigerant pump (19P) flows to the absorber (5), and the absorbing liquid is diluted in a short time.
上記実施例によれば、温水主制御が行われているとき
に、冷水負荷が例えば零になり、冷水出口温度が低下し
た場合には冷媒ドレン制御弁（30）が全閉するととも
に、第１電磁弁（33）が制御装置（41）からの開信号に
よって開く。このため、凝縮器（３）に残っていた冷媒
液、及び冷媒ドレン制御弁（30）が閉じた後に凝縮器
（３）で凝縮した冷媒液が第１冷媒液戻し管（31）を経
て吸収器（５）へ流れ、冷水出口温度の過低下を回避
し、冷媒溜り（3A）の冷媒の氷結を防止することができ
る。According to the above-described embodiment, when the cold water load is, for example, zero and the cold water outlet temperature is reduced while the hot water main control is performed, the refrigerant drain control valve (30) is fully closed and the first The solenoid valve (33) is opened by an open signal from the control device (41). Therefore, the refrigerant liquid remaining in the condenser (3) and the refrigerant liquid condensed in the condenser (3) after the refrigerant drain control valve (30) are closed are absorbed through the first refrigerant liquid return pipe (31). It is possible to avoid excessive lowering of the cold water outlet temperature by flowing into the vessel (5) and prevent the freezing of the refrigerant in the refrigerant pool (3A).
又、凝縮器（３）で生じた冷媒液を吸収器（５）へ流
すことができ、吸収液を稀釈して濃度の上昇を防止する
ことができる。Further, the refrigerant liquid generated in the condenser (3) can be made to flow to the absorber (5), and the absorption liquid can be diluted to prevent an increase in concentration.
第２図は本発明の他の実施例を示したものであり、第
１図と同じ構成のものには同じ符号を付し、その詳細な
説明は省略する。第２図に示した吸収冷温水器におい
て、冷媒液流下管（50）の一端は冷媒液溜め（3A）の低
壁より上方に開口し、他端は蒸発器（４）に開口してい
る。又、第１冷媒液戻し管（51）の一端は冷媒液溜め
（3A）の低壁に開口し、他端は吸収器（５）の気相部に
開口している。そして、冷媒液流下管（50）と第１冷媒
液戻し管（51）との冷媒液溜め（3A）側の開口（50
A），（51A）には高さ（Ｈ）の差がある。又、第１冷媒
液戻し管（51）の途中には第１電磁弁（33）が設けら
れ、かつ、Ｕシール（52）が形成されている。FIG. 2 shows another embodiment of the present invention. The same components as those in FIG. 1 are designated by the same reference numerals, and detailed description thereof will be omitted. In the absorption chiller-heater shown in FIG. 2, one end of the refrigerant liquid downflow pipe (50) is opened above the lower wall of the refrigerant liquid reservoir (3A), and the other end is opened to the evaporator (4). . Further, one end of the first refrigerant liquid return pipe (51) is opened to the lower wall of the refrigerant liquid reservoir (3A), and the other end is opened to the gas phase portion of the absorber (5). Then, the opening (50) of the refrigerant liquid flow-down pipe (50) and the first refrigerant liquid return pipe (51) on the refrigerant liquid reservoir (3A) side.
There is a difference in height (H) between A) and (51A). A first solenoid valve (33) is provided in the middle of the first refrigerant liquid return pipe (51) and a U seal (52) is formed.
上記吸収冷温水機において、吸収冷温水機が運転して
いるとき、冷媒液溜め（3A）の開口（50A）を越えた冷
媒液が凝縮器（３）から蒸発器（４）へ流れる。そし
て、温水主制御を行っているとき、冷水出口の温度が低
下すると、冷媒ドレイン制御弁（30）が閉じ、上記実施
例と同様に制御装置（41）が第１電磁弁（33）へ開信号
を出力する。そして、第１電磁弁（33）が開くと、第１
冷媒液戻し管（51）の冷媒液溜め（3A）側の開口（51
A）から冷媒液が流入して吸収器（５）へ流れる。この
とき、冷媒液流下管（50）の開口（50A）は開口（51A）
より上方にあるので、冷媒液溜め（3A）の冷媒液は冷媒
液流下管（50）へ流入せず、冷媒液は蒸発器（４）へ供
給されない。このため、冷媒液溜め（3A）の冷媒液を全
量第１冷媒液戻し管（51）を経て吸収器（３）へ流すこ
とができ、冷水温度の過低下を一層確実に防止すること
ができる。In the above absorption chiller-heater, when the absorption chiller-heater is in operation, the refrigerant liquid having passed through the opening (50A) of the refrigerant liquid reservoir (3A) flows from the condenser (3) to the evaporator (4). When the temperature of the cold water outlet is lowered during the hot water main control, the refrigerant drain control valve (30) is closed and the control device (41) is opened to the first solenoid valve (33) as in the above embodiment. Output a signal. Then, when the first solenoid valve (33) is opened, the first solenoid valve (33) is opened.
Opening (51) of the refrigerant liquid return pipe (51) on the refrigerant liquid reservoir (3A) side
The refrigerant liquid flows in from A) and flows to the absorber (5). At this time, the opening (50A) of the refrigerant liquid flow down pipe (50) is the opening (51A).
Since it is located higher, the refrigerant liquid in the refrigerant liquid reservoir (3A) does not flow into the refrigerant liquid flow-down pipe (50), and the refrigerant liquid is not supplied to the evaporator (4). Therefore, the entire amount of the refrigerant liquid in the refrigerant liquid reservoir (3A) can be flowed to the absorber (3) through the first refrigerant liquid return pipe (51), and the excessive decrease in the cold water temperature can be prevented more reliably. .
又、第２図に破線にて示したように、第１冷媒液戻し
管（51）の途中にＵシール（52）を形成しない場合に
は、上記のように第１電磁弁（33）が開き、冷媒液溜め
（3A）の冷媒液が総て吸収器（３）へ流れた後、凝縮器
（３）の気相部と吸収器（５）の気相部とが第１冷媒液
戻し管（51）を介して連通し、蒸発吸収器胴（Ａ）内の
圧力は上昇する。このため、吸収器（５）の冷媒吸収能
力は低下し、冷水温度の低下を一層確実に防止すること
ができる。Further, as shown by the broken line in FIG. 2, when the U seal (52) is not formed in the middle of the first refrigerant liquid return pipe (51), the first solenoid valve (33) operates as described above. After opening and all the refrigerant liquid in the refrigerant liquid reservoir (3A) flows to the absorber (3), the gas phase portion of the condenser (3) and the gas phase portion of the absorber (5) return to the first refrigerant liquid. The pressure in the evaporation absorber cylinder (A) rises by communicating through the pipe (51). For this reason, the refrigerant absorption capacity of the absorber (5) is reduced, and the decrease in cold water temperature can be prevented more reliably.
又、上記各実施例において、温水主制御が行われてい
るとき、冷水の出口温度が低下し、冷媒ドレン制御弁
（30）が閉じた場合に第１電磁弁（33）が開くように制
御したが、例えば冷媒ドレン制御弁（30）が閉じる前で
も、冷水温度が大幅に低下した場合に第１電磁弁（33）
が開くように制御した場合にも、同様の作用効果を得る
ことができる。Further, in each of the above embodiments, when the hot water main control is performed, the outlet temperature of the cold water is lowered, and the first solenoid valve (33) is controlled to open when the refrigerant drain control valve (30) is closed. However, for example, even before the refrigerant drain control valve (30) is closed, if the chilled water temperature drops significantly, the first solenoid valve (33)
Even when it is controlled to open, the same effect can be obtained.
又、上記各実施例において、温水主制御時、冷水出口
温度が設定温度まで低下した場合には、冷媒ドレン制御
弁（30）を閉じると共に、第１電磁弁（33）を開いた
が、例えば冷媒ドレン制御弁（30）を閉じた後、さら
に、冷水出口温度が低下して例えば5.8℃になったとき
に第１電磁弁（33）を開くようにしても良い。In each of the above embodiments, when the cold water outlet temperature drops to the set temperature during the hot water main control, the refrigerant drain control valve (30) is closed and the first solenoid valve (33) is opened. After the refrigerant drain control valve (30) is closed, the first solenoid valve (33) may be opened when the temperature of the cold water outlet further decreases and reaches, for example, 5.8 ° C.
（ト）発明の効果 本発明は以上のように構成された吸収冷温水機の制御
方法であり、凝縮器と吸収器との間、或いは冷媒液流下
管と吸収器との間に冷媒液戻し管を接続し、この冷媒液
戻し管に設けた弁の開閉を冷水の温度に応じて制御する
ので、冷媒制御弁の開度を冷水の温度に応じて調節して
いるとき、冷水の温度が大幅に低下した場合には、冷媒
液戻し管のの弁が開き、凝縮器の冷媒液を冷媒液戻し管
を経て吸収器へ流すことができ、この結果、蒸発器への
冷媒液の供給を停止し冷水温度の過低下を回避し、蒸発
器での冷媒液の連結を防止することができる。又、冷媒
液が吸収器へ流れ、吸収液が稀釈され、吸収液濃度の上
昇を防止することができる。(G) Effect of the Invention The present invention is a method for controlling an absorption chiller-heater configured as described above, in which a refrigerant liquid is returned between a condenser and an absorber or between a refrigerant liquid flow-down pipe and an absorber. Since the pipe is connected and the opening and closing of the valve provided in this refrigerant liquid return pipe is controlled according to the temperature of the cold water, when the opening degree of the refrigerant control valve is adjusted according to the temperature of the cold water, the temperature of the cold water is In the case of a significant decrease, the valve of the refrigerant liquid return pipe opens, and the refrigerant liquid of the condenser can flow through the refrigerant liquid return pipe to the absorber, and as a result, the supply of the refrigerant liquid to the evaporator can be prevented. It is possible to prevent the cold water temperature from being excessively lowered by stopping the operation and prevent the refrigerant liquid from being connected in the evaporator. Further, the refrigerant liquid flows to the absorber, the absorption liquid is diluted, and the concentration of the absorption liquid can be prevented from increasing.
又、凝縮器に設けられた冷媒溜りと蒸発器との間に冷
媒液流下管を接続し、冷媒溜りと吸収器との間に冷媒液
戻し管を接続し、この冷媒液戻し管の冷媒溜め側の開口
を冷媒液流下管の冷媒溜め側の開口より下方に設けると
共に、冷媒液戻し管に弁を設け、この弁を蒸発器から流
出する冷水の温度に応じて開閉するので、冷水の温度が
大幅に低下した場合には上記弁が開き、冷媒溜りの冷媒
液が冷媒液戻し管を経て吸収器へ流れ、蒸発器への冷媒
液の流下を直ちに停止することができ、この結果、冷水
温度の過低下を確実に回避することができ、蒸発器での
冷媒液の連結を防止することができる。又、冷媒溜りの
冷媒液が吸収器へ流れ、吸収液濃度の上昇を防止するこ
とができ、吸収冷温水機の運転を安定させることができ
る。Further, a refrigerant liquid flow-down pipe is connected between the refrigerant reservoir and the evaporator provided in the condenser, a refrigerant liquid return pipe is connected between the refrigerant reservoir and the absorber, and the refrigerant reservoir of this refrigerant liquid return pipe is connected. Side opening is provided below the refrigerant reservoir side opening of the refrigerant liquid flow-down pipe, a valve is provided in the refrigerant liquid return pipe, and this valve is opened / closed according to the temperature of the cold water flowing out from the evaporator. In the case of a significant decrease, the valve is opened, the refrigerant liquid in the refrigerant reservoir flows through the refrigerant liquid return pipe to the absorber, and it is possible to immediately stop the flow of the refrigerant liquid to the evaporator. It is possible to surely avoid an excessive decrease in temperature, and it is possible to prevent the refrigerant liquid from being connected in the evaporator. In addition, the refrigerant liquid in the refrigerant reservoir can be prevented from flowing to the absorber and the concentration of the absorbing liquid can be prevented from increasing, so that the operation of the absorption chiller-heater can be stabilized.
又、冷媒溜りの冷媒が総て吸収器へ流れた後は、凝縮
器と吸収器とが冷媒液戻し管によって連通し、吸収器の
冷媒蒸気の吸収能力が低下して冷水温度の過低下を一層
確実に防止することができる。Further, after all the refrigerant in the refrigerant pool has flown to the absorber, the condenser and the absorber are connected by the refrigerant liquid return pipe, the absorption capacity of the refrigerant vapor of the absorber is reduced, and the cold water temperature is excessively lowered. It can be prevented more reliably.
第１図は本発明の一実施例を示す吸収冷温水機の回路構
成図、第２図は冷水主制御と温水主制御との切換えの説
明図、第３図は本発明の他の実施例を示す吸収冷温水機
の回路構成図である。 （１）……高温発生器、（３）……凝縮器、（４）……
蒸発器、（５）……吸収器、（17）……冷媒管、（18）
……冷媒液流下管、（31），（51）……冷媒液戻し管、
（30）……冷媒ドレン制御弁、（33）……第１電磁弁、
（35）……温水器。FIG. 1 is a circuit configuration diagram of an absorption chiller-heater showing one embodiment of the present invention, FIG. 2 is an explanatory view of switching between cold water main control and hot water main control, and FIG. 3 is another embodiment of the present invention. It is a circuit block diagram of the absorption chiller-heater which shows. (1) …… High temperature generator, (3) …… Condenser, (4) ……
Evaporator, (5) ... Absorber, (17) ... Refrigerant tube, (18)
…… Refrigerant liquid flow down pipe, (31), (51) …… Refrigerant liquid return pipe,
(30) …… Refrigerant drain control valve, (33) …… First solenoid valve,
(35) …… Water heater.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 舘下 繁則 大阪府守口市京阪本通２丁目18番地 三洋 電機株式会社内 (56)参考文献 特開 昭62−155478（ＪＰ，Ａ) 特開 平３−156261（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigenori Tateshita 2-18, Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (56) Reference JP-A-62-155478 (JP, A) JP-A-3 -156261 (JP, A)
Claims (3)
続して蒸発器から冷水を取り出すようにした冷凍サイク
ルと、この冷凍サイクルの高温側に配設した温水器とか
ら冷水と温水とを同時に取り出すように構成し、発生器
と凝縮器との間の冷媒配管に設けられた冷媒制御弁を蒸
発器の冷水出口側の温度に応じて調節し、かつ発生器の
加熱量を温水器の温水出口側の温度に応じて調節する吸
収冷温水機の制御方法において、凝縮器と吸収器との間
に冷媒液戻し管を接続し、この冷媒液戻し管に弁を設
け、この弁を蒸発器の冷水出口側の温度に応じて開閉制
御することを特徴とする吸収冷温水機の制御方法。1. A refrigeration cycle in which a generator, a condenser, an evaporator, an absorber and the like are connected to take out cold water from the evaporator, and a water heater arranged on the high temperature side of the refrigeration cycle provides cold water. It is configured to take out hot water at the same time, and the refrigerant control valve provided in the refrigerant pipe between the generator and the condenser is adjusted according to the temperature of the cold water outlet side of the evaporator, and the heating amount of the generator is adjusted. In the control method of the absorption chiller-heater which adjusts according to the temperature of the hot water outlet side of the water heater, a refrigerant liquid return pipe is connected between the condenser and the absorber, and a valve is provided in this refrigerant liquid return pipe, A method for controlling an absorption chiller-hot water machine, characterized in that the valve is controlled to be opened and closed according to the temperature of the cold water outlet side of the evaporator.
続して蒸発器から冷水を取り出すようにした冷凍サイク
ルと、この冷凍サイクルの高温側に配設した温水器とか
ら冷水と温水とを同時に取り出すように構成し、発生器
と凝縮器との間の冷媒配管に設けられた冷媒制御弁の開
度を蒸発器の冷水出口側の温度に応じて調節し、かつ発
生器の加熱量を温水器の温水出口側の温度に応じて調節
する吸収冷温水機の制御方法において、上記凝縮器に設
けられた冷媒液溜めと蒸発器との間に冷媒液流下管を接
続すると共に、上記冷媒液溜めと吸収器との間に冷媒液
戻し管を接続し、この冷媒液戻し管の冷媒液溜め側の開
口を冷媒液流下管の冷媒液溜め側の開口より下方に設
け、かつ冷媒液戻し管に弁を設け、この弁を蒸発器の冷
水出口側の温度に応じて開閉制御することを特徴とする
吸収冷温水機の制御方法。2. A refrigeration cycle in which a generator, a condenser, an evaporator, an absorber and the like are connected to take out cold water from the evaporator, and a water heater arranged on the high temperature side of the refrigeration cycle provides cold water. It is configured to take out hot water at the same time, adjust the opening degree of the refrigerant control valve provided in the refrigerant pipe between the generator and the condenser according to the temperature of the cold water outlet side of the evaporator, and In the control method of the absorption chiller-heater that adjusts the heating amount according to the temperature of the hot water outlet side of the water heater, while connecting the refrigerant liquid downflow pipe between the refrigerant liquid reservoir and the evaporator provided in the condenser, , A refrigerant liquid return pipe is connected between the refrigerant liquid reservoir and the absorber, the refrigerant liquid reservoir side opening of this refrigerant liquid return pipe is provided below the refrigerant liquid reservoir side opening of the refrigerant liquid downflow pipe, and A valve is installed on the refrigerant liquid return pipe, and this valve responds to the temperature of the cold water outlet side of the evaporator. The method of the absorption chiller, characterized by switching control Te.
続して蒸発器から冷水を取り出すようにした冷凍サイク
ルと、この冷凍サイクルの高温側に配設した温水器とか
ら冷水と温水とを同時に取り出すように構成した吸収冷
温水機の制御方法において、凝縮器と蒸発器との間に冷
媒液流下管を接続し、この冷媒液流下管と吸収器との間
に冷媒液戻し管を接続し、この冷媒液戻し管に弁を設け
この弁を蒸発器の冷水出口側の温度に応じて開閉制御す
ることを特徴とする吸収冷温水機の制御方法。3. A refrigeration cycle in which a generator, a condenser, an evaporator, an absorber, etc. are connected to take out cold water from the evaporator, and a water heater provided on the high temperature side of this refrigeration cycle provides cold water. In a method for controlling an absorption chiller-heater configured to take out hot water at the same time, a refrigerant liquid downflow pipe is connected between a condenser and an evaporator, and a refrigerant liquid return is provided between the refrigerant liquid downflow pipe and the absorber. A method for controlling an absorption chiller-hot water machine, characterized in that a pipe is connected and a valve is provided in the refrigerant liquid return pipe to control opening / closing of the valve according to the temperature of the cold water outlet side of the evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2071657A JPH0833259B2 (en) | 1990-03-20 | 1990-03-20 | Absorption chiller / heater control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2071657A JPH0833259B2 (en) | 1990-03-20 | 1990-03-20 | Absorption chiller / heater control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03271663A JPH03271663A (en) | 1991-12-03 |
| JPH0833259B2 true JPH0833259B2 (en) | 1996-03-29 |
Family
ID=13466900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2071657A Expired - Lifetime JPH0833259B2 (en) | 1990-03-20 | 1990-03-20 | Absorption chiller / heater control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0833259B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06137706A (en) * | 1992-10-28 | 1994-05-20 | Hitachi Zosen Corp | Control method for absorption type cooling and hot water equipment |
-
1990
- 1990-03-20 JP JP2071657A patent/JPH0833259B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03271663A (en) | 1991-12-03 |
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