JP2523042B2 - Absorption cold water heater - Google Patents
Absorption cold water heaterInfo
- Publication number
- JP2523042B2 JP2523042B2 JP2113135A JP11313590A JP2523042B2 JP 2523042 B2 JP2523042 B2 JP 2523042B2 JP 2113135 A JP2113135 A JP 2113135A JP 11313590 A JP11313590 A JP 11313590A JP 2523042 B2 JP2523042 B2 JP 2523042B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- cold water
- hot water
- water outlet
- outlet 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
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は、冷水と温水とを同時に供給する吸収冷温水
機に関する。TECHNICAL FIELD The present invention relates to an absorption chiller-heater that simultaneously supplies cold water and hot water.
（ロ）従来の技術 例えば特公昭55−9620号公報には、発生器に温水器を
付設し、蒸気器と温水器とから冷水と温水とを同時に取
出すようにすると共に、低温発生器と吸収器との間の濃
溶液配管（28）に冷媒液配管（31）或いは（37）を接続
し、これらの冷媒液配管（31），（37）にそれぞれ流量
制御弁（32）、或いは（36）を設け、暖房負荷が冷房負
荷より大きいときには、蒸発器の冷水出口温度に応じて
流量制御弁（32）、或いは（36）を制御する吸収冷暖房
装置が開示されている。そして、流量制御弁（32）、或
いは（36）を制御することによって、冷媒液配管（3
1）、或いは（37）を経て濃溶液配管（28）の濃溶液に
混入する冷媒液の量が変化し、混入量の変化に伴い吸収
器に散布される濃溶液の濃度が変化し、吸収機能が調節
されて冷房能力が変化する。(B) Conventional technology For example, in Japanese Examined Patent Publication No. Sho 55-9620, a water heater is attached to a generator so that cold water and hot water can be taken out simultaneously from a steamer and a water heater, and a low temperature generator and absorption A refrigerant liquid pipe (31) or (37) is connected to a concentrated solution pipe (28) between the container and the flow control valve (32) or (36). ) Is provided to control the flow rate control valve (32) or (36) in accordance with the cold water outlet temperature of the evaporator when the heating load is larger than the cooling load. Then, by controlling the flow control valve (32) or (36), the refrigerant liquid pipe (3
The amount of the refrigerant liquid mixed in the concentrated solution in the concentrated solution pipe (28) via 1) or (37) changes, and the concentration of the concentrated solution sprayed to the absorber changes with the change in the mixed amount. The function is adjusted and the cooling capacity is changed.
又、特開昭63−129262号公報には蒸発器の下部に溜っ
ている冷媒液を蒸発器に循環散布する冷媒ポンプと、こ
の冷媒ポンプの制御装置とを備え、この冷媒ポンプの制
御装置は冷水出口温度が低下しているとき、冷媒ポンプ
の運転を断続運転する機構を有している吸収冷凍機が開
示されている。Further, Japanese Patent Application Laid-Open No. 63-129262 includes a refrigerant pump that circulates the refrigerant liquid accumulated in the lower portion of the evaporator to the evaporator, and a controller for this refrigerant pump. An absorption refrigerator having a mechanism for intermittently operating the refrigerant pump when the cold water outlet temperature is lowered is disclosed.
（ハ）発明が解決しようとする課題 上記特公昭55−9620号公報に開示されている吸収冷暖
房装置において、暖房負荷が冷房負荷より大きく、冷水
出口温度、即ち冷水負荷に応じて流量制御弁（32）、或
いは（36）を制御しているとき、冷媒液（例えば４〜５
℃）と濃溶液（例えば40〜50℃）との温度差によって冷
媒液の濃溶液への混入部でフラッシュが発生するおそれ
がある。そして、フラッシュが発生した場合、フラッシ
ュが冷媒液の濃溶液への混入の抵抗になり、冷房負荷が
大幅に低下した場合などに、冷媒液の濃溶液への混入が
不十分で、冷水出口温度の過低下以下、冷媒液の氷結が
発生するおそれがある。(C) Problems to be Solved by the Invention In the absorption cooling and heating apparatus disclosed in Japanese Patent Publication No. 55-9620, the heating load is larger than the cooling load, and the flow control valve (according to the cold water outlet temperature, that is, the cold water load, 32) or (36) is being controlled, a refrigerant liquid (for example, 4 to 5)
C.) and a concentrated solution (for example, 40 to 50.degree. C.) may cause a flash at a portion where the refrigerant liquid is mixed with the concentrated solution. When a flash occurs, the flash becomes a resistance to the mixture of the refrigerant liquid in the concentrated solution, and when the cooling load is significantly reduced, the mixture of the refrigerant liquid in the concentrated solution is insufficient and the cold water outlet temperature Below the excessive decrease, the freezing of the refrigerant liquid may occur.
又、吸収冷温水機において、暖房負荷が大、冷房負荷
が微小の場合、冷却水が流れているため、低温発生器で
の溶液の自己フラッシュによって、発生した冷媒蒸気が
凝縮器で凝縮し、冷媒液が蒸発器で流下する。そして、
冷房負荷が微小の状態が長時間続いた場合、しだいに溶
液の濃度が上昇する。ここで、上記特開昭63−129262号
に開示されているように、冷媒ポンプの運転を断続運転
した場合、冷媒ポンプの停止時に冷媒液が氷結するおそ
れがある。特に吸収冷温水機の運転開始直後の冷却水温
度が低い場合には、氷結が発生する可能性が高くなる。
又、吸収冷温水機の運転開始後の冷却水温度が低い場
合、冷房負荷が小さいときには、冷却水の加熱源は、溶
液の顕熱のみとなる。ここで、冷媒液が蒸発器に溜って
くると、冷水出口温度の過低下などが発生するおそれが
ある。そこで、冷水出口温度の過低下を防止するため
に、凝縮器の冷媒液を吸収器へ流した場合には、冷水負
荷が僅かな場合などに冷水出口温度が大幅に上昇するお
それがある。Also, in the absorption chiller-heater, when the heating load is large and the cooling load is small, the cooling water is flowing, so the self-flushing of the solution in the low-temperature generator causes the generated refrigerant vapor to condense in the condenser, Refrigerant liquid flows down in the evaporator. And
When the cooling load is extremely low for a long time, the concentration of the solution gradually increases. Here, as disclosed in JP-A-63-129262, when the operation of the refrigerant pump is intermittently operated, the refrigerant liquid may freeze when the refrigerant pump is stopped. Especially when the cooling water temperature immediately after the operation of the absorption chiller-heater is low, there is a high possibility that icing will occur.
When the cooling water temperature after the operation of the absorption chiller-heater is low and the cooling load is small, the heating source of the cooling water is only the sensible heat of the solution. Here, if the refrigerant liquid accumulates in the evaporator, the cold water outlet temperature may be excessively lowered. Therefore, when the refrigerant liquid in the condenser is caused to flow to the absorber in order to prevent the cold water outlet temperature from excessively decreasing, there is a possibility that the cold water outlet temperature will rise significantly when the cold water load is small.
本発明は、冷房負荷が微小なときの冷水出口温度の過
低下、冷媒液の氷結、或いは、冷水出口温度の大幅な変
動などを防止して、吸収冷温水機の運転を安定させるこ
とを目的とする。The present invention aims to stabilize the operation of the absorption chiller-heater by preventing excessive lowering of the cold water outlet temperature when the cooling load is minute, freezing of the refrigerant liquid, or drastic fluctuation of the cold water outlet temperature. And
（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）と、凝縮器（３）と、蒸発器（４）と、吸収器
（５）とを接続して冷凍サイクルを形成すると共に、こ
の冷凍サイクルの高温側に温水器（35）を付設し、かつ
吸収器（５）及び凝縮器（３）に冷却水配管を接続し、
蒸発器（４）から冷水を供給すると共に、温水器（36）
から温水を供給する吸収冷温水機において、凝縮器
（３）と吸収器（５）とを接続し途中に開閉弁（42）を
有した冷媒液ブロー管（41）と、蒸発器（４）からの冷
水出口温度を検出する冷水出口温度検出器（46）と、温
水器（35）からの温水出口温度を検出する温水出口温度
検出器（48）と、冷却水の温度を検出する冷却水温度検
出器（51）と、冷水出口温度検出器（46）の検出温度に
応じて発生器（１）の加熱量を制御する冷水主制御運転
と温水出口温度検出器（48）の検出温度に応じて発生器
（１）の加熱量を制御する温水主制御運転とを切換え、
かつ、温水主制御運転時には、冷却水温度検出器（）51
の検出温度に応じて開閉弁（42）の開閉を制御する制御
盤（45）とを備えた吸収冷温水機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 comprises a high temperature generator (1), a condenser (3), an evaporator (4), and an absorber (5). While connecting to form a refrigeration cycle, a water heater (35) is attached to the high temperature side of this refrigeration cycle, and a cooling water pipe is connected to the absorber (5) and the condenser (3).
Cold water is supplied from the evaporator (4) and a water heater (36)
In an absorption chiller-heater for supplying hot water from a refrigerant liquid blow pipe (41), which connects a condenser (3) and an absorber (5) and has an opening / closing valve (42) on the way, and an evaporator (4). Cold water outlet temperature detector (46) for detecting the cold water outlet temperature from the water, hot water outlet temperature detector (48) for detecting the hot water outlet temperature from the water heater (35), and cooling water for detecting the temperature of the cooling water For the cold water main control operation that controls the heating amount of the generator (1) according to the temperature detected by the temperature detector (51) and the cold water outlet temperature detector (46) and the temperature detected by the hot water outlet temperature detector (48). According to the hot water main control operation for controlling the heating amount of the generator (1),
In addition, during the hot water main control operation, the cooling water temperature detector () 51
The control chiller (45) for controlling opening and closing of the on-off valve (42) according to the detected temperature of the absorption chiller-heater.
また、凝縮器（３）と吸収器（５）とを接続し途中に
開閉弁（42）を有した冷媒液ブロー管（41）と、蒸発器
（４）からの冷水出口温度を検出する冷水出口温度検出
器（46）と、温水器（35）からの温水出口温度を検出す
る温水出口温度検出器（48）と、冷却水の温度を検出す
る冷却水温度検出器（51）と、冷水出口温度検出器（4
6）の検出温度に応じて発生器（１）の加熱量を制御す
る冷水主制御運転と温水出口温度検出器（48）の検出温
度に応じて発生器（１）の加熱量を制御する温水主制御
運転とを切換え、かつ、温水主制御運転時で冷却水温度
検出器（46）の検出温度が低いときには、この検出温度
が所定温度以上になるまで開閉弁（42）に所定時間毎に
開信号と閉信号とを交互に出力する制御盤（45）とを備
えた吸収冷温水機を提供するものである。Further, a refrigerant liquid blow pipe (41) having a condenser (3) and an absorber (5) connected to each other and having an opening / closing valve (42) in the middle thereof, and cold water for detecting a cold water outlet temperature from the evaporator (4). Outlet temperature detector (46), hot water outlet temperature detector (48) that detects the hot water outlet temperature from the water heater (35), cooling water temperature detector (51) that detects the temperature of cooling water, and cold water Outlet temperature detector (4
Cold water main control operation that controls the heating amount of the generator (1) according to the detected temperature of 6) and hot water that controls the heating amount of the generator (1) according to the detected temperature of the hot water outlet temperature detector (48) When the control temperature is switched to the main control operation and the temperature detected by the cooling water temperature detector (46) is low during the hot water main control operation, the open / close valve (42) is turned on every predetermined time until the detected temperature becomes equal to or higher than the predetermined temperature. An absorption chiller-heater provided with a control panel (45) that alternately outputs an open signal and a closed signal.
（ホ）作 用 吸収冷温水機の例えば起動時に、冷却水の温度が低
く、温水主制御の運転が行われている場合には、制御盤
（45）からの信号によって開閉弁（42）が所定時間ごと
に開閉し、吸収液が吸収器（５）へ間欠的に流れ、吸収
液が稀釈され、冷水出口温度の急激な低下を回避し、
又、冷水負荷が僅かな場合でも吸収液の稀釈による冷水
出口温度の大幅な上昇を回避し、冷水出口温度の変動を
抑えることが可能になる。又、冷媒液を吸収器へ間欠的
に流すことによって、冷媒液ブロー管（41）内での冷媒
液の氷結を防止することが可能になる。(E) Operation When the temperature of the cooling water is low and the hot water main control is operating, for example, when the absorption chiller-heater is started, the on-off valve (42) is turned on by a signal from the control panel (45). It opens and closes every predetermined time, the absorbent flows intermittently to the absorber (5), the absorbent is diluted, and a sharp drop in the cold water outlet temperature is avoided,
Further, even when the load of cold water is small, it is possible to avoid a large rise in the temperature of the cold water outlet due to the dilution of the absorbing liquid, and to suppress fluctuations in the temperature of the cold water outlet. Further, by intermittently flowing the refrigerant liquid to the absorber, it becomes possible to prevent the refrigerant liquid from being frozen in the refrigerant liquid blow pipe (41).
又、温水主制御時、冷水負荷が僅かで冷却水温度が低
い場合に、冷却水温度が所定の温度になるまで、開閉弁
（42）を開閉し、冷媒液を凝縮器（３）から吸収器
（５）へ流し、吸収液を僅かづつ稀釈し、冷水出口温度
の大幅な低下を回避し、かつ、冷水出口温度が稀釈によ
って大幅に上昇することを防止し、吸収冷温水機の運転
を安定させることが可能になり、又、吸収冷温水機の運
転開始のときには、大幅な温度変動を抑え、吸収冷温水
機の運転をスムーズに開始することが可能になる。Further, in the hot water main control, when the cold water load is small and the cooling water temperature is low, the on-off valve (42) is opened and closed until the cooling water temperature reaches a predetermined temperature, and the refrigerant liquid is absorbed from the condenser (3). Pour into the vessel (5), dilute the absorbing liquid little by little, avoid a large decrease in the cold water outlet temperature, and prevent the cold water outlet temperature from significantly increasing by the dilution, and operate the absorption cold / hot water machine. It becomes possible to stabilize, and when the operation of the absorption chiller-heater is started, it is possible to suppress a large temperature fluctuation and to smoothly start the operation of the absorption chiller-heater.
（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）は冷媒液流下管、（19）は冷媒
液循環管、（19P）は冷媒ポンプ、（2A）はオーバーフ
ロー管、（20）はバーナ（1B）に接続された燃料供給
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）は上胴、（Ｂ）は
下胴である。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。又、（30）は
冷媒管（17）に設けられた冷媒ドレン制御弁である。In FIG. 1, (1) is a high temperature generator equipped with a burner (1B), (2) is a low temperature generator, (3) is a condenser, (3A) is a refrigerant liquid 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, and (18) is Refrigerant liquid flow down pipe, (19) Refrigerant liquid circulation pipe, (19P) Refrigerant pump, (2A) Overflow pipe, (20) Fuel supply pipe connected to burner (1B), (21) Heating amount Control valve, (22) cold water piping, (23)
Is an evaporator heat exchanger, each of which is connected by piping as shown in FIG. Further, (A) is an upper body and (B) is a lower body. 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 this cooling water pipe (25). Further, (30) is a refrigerant drain control valve provided in the refrigerant pipe (17).
（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
接続された温水ドレン管であり、この温水ドレン管（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 hot water drain pipe connected between the lower part of the water heater (35) and the high temperature generator (1).
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.
（41）は凝縮器（３）と吸収器（５）の気相部とを接
続する第１冷媒ドレン管であり、この第１冷媒ドレン管
（41）の一端は凝縮器（３）に形成された冷媒液溜め
（3A）に接続され、他端は吸収器（５）の気相部に開口
している。又、第１冷媒ドレン管（41）の途中には電磁
弁などの第１開閉弁（42）が設けられている。さらに、
（43）は第２冷媒ドレン管であり、この第２冷媒ドレン
管（43）の一端は冷媒液循環管（19）の冷媒ポンプ（1
9）の吐出側に接続され、他端は吸収器（５）の気相部
に開口している。そして、第２冷媒ドレン管（43）の途
中には電磁弁などの第２開閉弁（44）が設けられてい
る。Reference numeral (41) is a first refrigerant drain pipe that connects the condenser (3) and the gas phase portion of the absorber (5), and one end of the first refrigerant drain pipe (41) is formed in the condenser (3). It is connected to the stored refrigerant liquid reservoir (3A), and the other end is open to the gas phase portion of the absorber (5). A first opening / closing valve (42) such as a solenoid valve is provided in the middle of the first refrigerant drain pipe (41). further,
(43) is a second refrigerant drain pipe, and one end of the second refrigerant drain pipe (43) has a refrigerant pump (1) of the refrigerant liquid circulation pipe (19).
It is connected to the discharge side of 9) and the other end is open to the gas phase part of the absorber (5). A second opening / closing valve (44) such as a solenoid valve is provided in the middle of the second refrigerant drain pipe (43).
（45）は吸収冷温水機のマイコン制御盤（制御装
置）、（46）は冷水出口温度検出器、（47）は冷水入口
温度検出器、（48）は温水出口温度検出器、（49）は温
水入口温度検出器であり、これらの温度検出器（46），
（47），｛48），（49）はそれぞれ制御盤（45）に接続
されている。又、（51）は冷却水配管（25）の吸収器
（５）入口側に取付けられた冷却水温度検出器であり、
この冷却水温度検出器（51）は制御盤（45）に接続され
ている。さらに、加熱量制御弁（21）、冷媒ドレン制御
弁（30）、温水ドレン制御弁（37）、及び第1,第２開閉
弁（42），（44）が制御盤（45）に接続されている。
（52）は制御盤（45）の冷主温度切換回路であり、この
切換回路（52）の各接片（53），（54）は冷水入口温度
と温水入口温度とに応じて冷主側接点と温主側接点とに
切換わる。ここで、第２図は冷水入口温度と温水入口温
度とによる冷水主制御の領域と温水主制御の領域との関
係図である。そして、各接片（53），（54）が冷主側接
点に閉じているとき、即ち、冷水主制御の運転時には、
冷水出口温度検出器（46）の温度（以下冷水出口温度と
いう）に応じて加熱量制御弁（21）の開度が例えばPID
制御（比例動作＋積分動作＋微分動作による制御）によ
り調節される。又、温水出口温度検出器（48）の温度
（以下温水出口温度という）に応じて温水ドレン制御弁
（37）の開度が例えばＰ制御で調節される。又、各接片
（53），（54）が温主側接点に閉じているとき、即ち温
水制御の運転時には、温水出口温度に応じて加熱量制御
弁（21）の開度が例えばPID制御で調節される。又、冷
水出口温度に応じて冷媒ドレン制御弁（30）の開度が例
えばＰ制御で調節される。(45) is a microcomputer control panel (control device) for the absorption chiller-heater, (46) is a cold water outlet temperature detector, (47) is a cold water inlet temperature detector, (48) is a hot water outlet temperature detector, (49) Is a hot water inlet temperature detector. These temperature detectors (46),
(47), {48), (49) are connected to the control panel (45), respectively. Further, (51) is a cooling water temperature detector mounted on the inlet side of the absorber (5) of the cooling water pipe (25),
The cooling water temperature detector (51) is connected to the control panel (45). Further, the heating amount control valve (21), the refrigerant drain control valve (30), the hot water drain control valve (37), and the first and second opening / closing valves (42), (44) are connected to the control panel (45). ing.
Reference numeral (52) is a cold main temperature switching circuit of the control panel (45), and each contact piece (53), (54) of this switching circuit (52) has a cold main side depending on the cold water inlet temperature and the hot water inlet temperature. Switches between the contact and the hot main contact. Here, FIG. 2 is a relationship diagram between the cold water main control area and the hot water main control area based on the cold water inlet temperature and the hot water inlet temperature. And, when each contact piece (53), (54) is closed to the cold main side contact, that is, during the operation of the cold water main control,
Depending on the temperature of the cold water outlet temperature detector (46) (hereinafter referred to as the cold water outlet temperature), the opening degree of the heating amount control valve (21) is, for example, PID.
It is adjusted by control (control by proportional action + integral action + derivative action). Further, the opening degree of the hot water drain control valve (37) is adjusted by P control, for example, according to the temperature of the hot water outlet temperature detector (48) (hereinafter referred to as hot water outlet temperature). Further, when each contact piece (53), (54) is closed to the hot main side contact, that is, during the operation of hot water control, the opening degree of the heating amount control valve (21) is, for example, PID control according to the hot water outlet temperature. Is adjusted by. Further, the opening degree of the refrigerant drain control valve (30) is adjusted by P control, for example, according to the cold water outlet temperature.
以下、上記のように構成された吸収冷温水機の運転に
ついて説明する。冷水入口温度、及び温水入口温度がそ
れぞれ例えば10℃,57℃のときには各接片（53），（5
4）は冷主側接点に閉じている。このため、上記のよう
に吸収冷温水機が冷水主制御の運転を行い、従来の吸収
冷温水機と同様に吸収液及び冷媒が循環し、高温発生器
（１）の加熱量が冷水出口温度に応じて調節され、蒸発
器（４）からほぼ設定温度の冷水が負荷へ供給される。
又、温水ドレン制御弁（37）の開度が温水出口温度に応
じて調節され、温水器（35）からほぼ設定温度の温水が
負荷へ供給される。ここで、制御盤（45）は第1,第２開
閉弁（42），（44）へ開信号を出力しており、各開閉弁
（42），（44）は閉じている。The operation of the absorption chiller-heater configured as above will be described below. When the cold water inlet temperature and the hot water inlet temperature are, for example, 10 ° C and 57 ° C, respectively, the contact pieces (53), (5
4) is closed on the cold side contact. Therefore, the absorption chiller-heater performs the operation of the chilled water main control as described above, the absorption liquid and the refrigerant circulate as in the conventional absorption chiller-heater, and the heating amount of the high temperature generator (1) changes the chilled water outlet temperature. The cold water of about the preset temperature is supplied to the load from the evaporator (4).
Further, the opening degree of the hot water drain control valve (37) is adjusted according to the hot water outlet temperature, and the hot water of the substantially set temperature is supplied from the hot water heater (35) to the load. Here, the control panel (45) outputs an open signal to the first and second on-off valves (42) and (44), and the on-off valves (42) and (44) are closed.
又、上記吸収冷温水機の運転開始後の動作について、
第３図に基づいて説明する。吸収冷温水機の運転開始
時、冷水入口温度が例えば13.5℃、温水入口温度が例え
ば30.0℃であり、冷水主制御の運転が行われる。そし
て、高温発生器（１）は運転を始めると共に、吸収液ポ
ンプ（15）及び冷媒ポンプ（19P）は運転を開始して吸
収液及び冷媒が循環する。又、制御盤（45）から第1,第
２開閉弁（42），（44）へ閉信号が出力されており、各
開閉弁（42），（44）は閉じている。又、冷水出口温度
に応じて開度信号が加熱量制御弁（21）へ出力され、温
水出口温度に応じて開度信号が温水ドレン制御弁（37）
へ出力され、高温発生器（１）及び温水器（35）での加
熱量が冷水出口温度及び温水出口温度に応じて変化す
る。上記のように、吸収液及び冷媒が循環して冷媒液が
蒸発器熱交換器（23）に散布されると、冷水出口温度及
び冷水入口温度が低下する。そして、時刻（T1）にて冷
水入口温度が10.5℃より低くなり、そのときの温水入口
温度が例えば16.0℃のときには、冷主温主切換回路（5
2）の各接片（53），（54）は温主側接点に切換わり、
温水主制御の運転が始まる。このとき、冷却水入口温度
が第１の所定温度（例えば22℃）より低い例えば5.5℃
であり、かつ、冷水出口温度が第２の所定温度（例えば
6.3℃）より高い例えば9.8℃である場合には、制御盤
（45）が動作し、所定時間ごとに第１開閉弁（42）へ開
信号と閉信号とを出力する。そして、第１開閉弁（42）
は例えば、60秒の閉と30秒の開とを交互に繰り返し、第
１開閉弁（42）が閉ときには冷媒液溜め（3A）の冷媒液
が蒸発器（４）へ流れ、第１開閉弁（42）が開のときに
は冷媒液溜め（3A）の冷媒液が第１冷媒ドレン管（41）
を経て吸収器（５）へ流れる。このため、蒸発器（４）
の冷媒液が大幅に減少することはなく、冷媒ポンプ（19
P）の運転によって、冷媒液が蒸発器熱交換器（23）に
散布される。又、吸収器（５）の吸収液が稀釈され、吸
収器（５）での冷媒吸収能力が低下する。又、冷却水温
度が低いため、吸収器（５）の温度も低いが第１冷媒ド
レン管（41）を所定時間ごとに冷媒液が流れ、第１冷媒
ドレン管（41）で冷媒液が氷結することはない。Also, regarding the operation after the start of operation of the absorption chiller-heater,
Description will be made with reference to FIG. At the start of operation of the absorption chiller-heater, the cold water inlet temperature is, for example, 13.5 ° C., the hot water inlet temperature is, for example, 30.0 ° C., and the cold water main control operation is performed. Then, the high temperature generator (1) starts operating, and the absorbent pump (15) and the refrigerant pump (19P) start operating to circulate the absorbent and the refrigerant. Further, a close signal is output from the control panel (45) to the first and second on-off valves (42) and (44), and the on-off valves (42) and (44) are closed. An opening signal is output to the heating amount control valve (21) according to the cold water outlet temperature, and an opening signal is output according to the hot water outlet temperature to the hot water drain control valve (37).
Is output to the high temperature generator (1) and the hot water heater (35), and the heating amount changes according to the cold water outlet temperature and the hot water outlet temperature. As described above, when the absorbing liquid and the refrigerant circulate and the refrigerant liquid is sprayed to the evaporator heat exchanger (23), the cold water outlet temperature and the cold water inlet temperature decrease. When the cold water inlet temperature becomes lower than 10.5 ° C at time (T 1 ) and the hot water inlet temperature at that time is, for example, 16.0 ° C, the cold main temperature main switching circuit (5
Each contact piece (53), (54) in 2) is switched to the hot main side contact,
Hot water main control operation starts. At this time, the cooling water inlet temperature is lower than the first predetermined temperature (for example, 22 ° C.), for example, 5.5 ° C.
And the cold water outlet temperature is the second predetermined temperature (for example,
If the temperature is higher than 6.3 ° C., for example, 9.8 ° C., the control panel (45) operates and outputs an open signal and a close signal to the first opening / closing valve (42) at predetermined time intervals. And the first on-off valve (42)
For example, the closing of 60 seconds and the opening of 30 seconds are alternately repeated, and when the first opening / closing valve (42) is closed, the refrigerant liquid in the refrigerant liquid reservoir (3A) flows to the evaporator (4), and the first opening / closing valve is opened. When (42) is open, the refrigerant liquid in the refrigerant liquid reservoir (3A) is the first refrigerant drain pipe (41).
Through to the absorber (5). Therefore, the evaporator (4)
The refrigerant liquid in the refrigerant pump (19
By the operation of P), the refrigerant liquid is sprinkled on the evaporator heat exchanger (23). Further, the absorbing liquid in the absorber (5) is diluted, and the refrigerant absorbing ability in the absorber (5) is reduced. Further, since the temperature of the cooling water is low, the temperature of the absorber (5) is also low, but the refrigerant liquid flows through the first refrigerant drain pipe (41) at every predetermined time, and the refrigerant liquid freezes in the first refrigerant drain pipe (41). There is nothing to do.
その後、例えば冷水負荷がさらに低下して冷水出口温
度が低下した場合には冷媒ドレン制御弁（30）の開度が
小さくなり、高温発生器（１）から凝縮器（３）へ流れ
る冷媒の量は減少する。冷媒ドレン制御弁（30）の開度
が小さくなるにもかかわらず、冷水負荷の減少のために
冷水出口温度が低下して時刻（T2）にて第２の所定温度
以下になったときには制御盤（45）が動作する。そし
て、開信号が制御盤（45）から第１開閉弁（42）へ継続
して出力され、第１開閉弁（42）が継続して開き、凝縮
器（３）の冷媒液溜め（3A）に溜っている冷媒液が総て
第１冷媒ドレン管（41）を経て吸収器（５）へ流れる。
このため、さらに、吸収液が稀釈される。その後も冷水
出口温度が低下して例えば6.0℃になると制御盤（45）
が第２開閉弁（44）へ開信号を出力し、第２開閉弁（4
4）が所定時間開く。After that, for example, when the cold water load further decreases and the cold water outlet temperature decreases, the opening degree of the refrigerant drain control valve (30) decreases, and the amount of refrigerant flowing from the high temperature generator (1) to the condenser (3). Decreases. Despite the opening of the refrigerant drain control valve (30) becoming smaller, the chilled water outlet temperature decreases due to the reduction of the chilled water load, and when the temperature falls below the second predetermined temperature at time (T 2 ), control is performed. The board (45) operates. Then, the open signal is continuously output from the control panel (45) to the first opening / closing valve (42), the first opening / closing valve (42) is continuously opened, and the refrigerant liquid reservoir (3A) of the condenser (3) is opened. All the refrigerant liquid accumulated in the refrigerant flows through the first refrigerant drain pipe (41) to the absorber (5).
Therefore, the absorption liquid is further diluted. After that, if the cold water outlet temperature drops to 6.0 ° C, for example, the control panel (45)
Outputs an open signal to the second on-off valve (44), and the second on-off valve (4
4) Open for a predetermined time.
その後、冷水出口温度が、さらに低下して、時刻
（T3）にて第３の所定温度（例えば5.4℃）になったと
きには、制御盤（45）が動作して冷媒ポンプ（19P）へ
停止信号を出力し、冷媒ポンプ（19P）は停止する。そ
して、蒸発器（４）のトレー（4A）に残っていた冷媒液
が総て散布された後は冷水出口温度が次第に上昇する。
そして、時刻（T4）にて冷水出口温度が第４の所定温度
（例えば6.5℃）になったとき、冷媒ポンプ（19P）が運
転を始める。又、制御盤（45）が第１開閉弁（42）へ閉
信号を出力して、第１開閉弁（42）は閉じる。After that, when the chilled water outlet temperature further decreases and reaches the third predetermined temperature (for example, 5.4 ° C) at time (T 3 ), the control panel (45) operates and stops to the refrigerant pump (19P). A signal is output and the refrigerant pump (19P) stops. Then, after all the refrigerant liquid remaining on the tray (4A) of the evaporator (4) has been sprayed, the cold water outlet temperature gradually rises.
Then, at time (T 4 ), when the cold water outlet temperature reaches the fourth predetermined temperature (for example, 6.5 ° C.), the refrigerant pump (19P) starts operating. Further, the control panel (45) outputs a close signal to the first opening / closing valve (42) to close the first opening / closing valve (42).
以後、冷水入口温度と温水入口温度とに応じて冷水主
制御と温水主制御とが切換えられる。又、温水主制御の
運転時、冷水負荷が減少して冷水出口温度が低下した場
合には、第1,第２開閉弁（42），（44）が開き、又、冷
却水温度が低い場合には、冷水出口温度が第２の所定温
度より高いときにも、第１開閉弁（42）が所定時間ごと
に開閉し、凝縮器（３）の冷媒液が蒸発器（４）と吸収
器（５）との双方へ流れ、蒸発器（４）の冷媒液が確保
され、又、吸収液が稀釈される。After that, the cold water main control and the hot water main control are switched according to the cold water inlet temperature and the hot water inlet temperature. When the cold water load decreases and the cold water outlet temperature decreases during the operation of the hot water main control, the first and second on-off valves (42) and (44) open, and the cooling water temperature is low. Even when the chilled water outlet temperature is higher than the second predetermined temperature, the first opening / closing valve (42) opens and closes every predetermined time so that the refrigerant liquid in the condenser (3) and the evaporator (4) and the absorber. (5), the refrigerant liquid in the evaporator (4) is secured, and the absorbing liquid is diluted.
その後、第２開閉弁（44）が閉じ、さらに冷水負荷が
増加して冷水出口温度が上昇したときには第１開閉弁
（42）が閉じる。又、冷水出口温度が上昇して第２の所
定温度より高くなったときに冷却水温度が第１の所定温
度より低い場合には、制御盤（45）が第１開閉弁（42）
へ開信号と閉信号とを所定時間ごとに出力し、上記と同
様に冷媒液溜め（3A）に溜っている冷媒液が所定時間ご
とに吸収器（５）へ流れる。Thereafter, the second on-off valve (44) is closed, and when the cold water load further increases and the cold water outlet temperature rises, the first on-off valve (42) closes. Further, when the temperature of the cooling water is lower than the first predetermined temperature when the temperature of the cold water outlet rises and becomes higher than the second predetermined temperature, the control panel (45) causes the first opening / closing valve (42).
The open signal and the close signal are output at predetermined time intervals, and the refrigerant liquid accumulated in the refrigerant liquid reservoir (3A) flows to the absorber (5) at predetermined time intervals in the same manner as described above.
上記実施例によれば、吸収冷温水機の運転開始時、温
水主制御の運転が行われているときに、冷却水入口温度
が低い場合には、冷水出口温度が第２の所定温度より高
い場合には、制御盤（45）が動作して第１開閉弁（42）
を所定時間ごとに開閉するので、吸収器（５）へ吸収液
が所定時間ごとに流れ、吸収液が稀釈され、吸収器
（５）での冷媒吸収能力が少しづつ低下して、冷水出口
温度の急激な低下を回避することができ、又、冷水負荷
が僅かな場合でも稀釈による冷水出口温度の大幅な上昇
を回避することができる。又、第１開閉弁（42）の開閉
によって凝縮器（３）の冷媒液が第１冷媒ドレン管（4
1）を経て吸収器（５）へ流れ、第１冷媒ドレン管（4
1）の吸収器（５）側での氷結を回避することができ
る。さらに、第１開閉弁（42）の開閉によって冷媒液が
蒸発器（４）と吸収器（５）とに交互に流れ、蒸発器
（４）の冷媒液の大幅な減少を回避して冷媒ポンプ（19
P）のキャビテーションを防止することができる。According to the above-described embodiment, at the start of the operation of the absorption chiller-heater, when the cooling water inlet temperature is low when the operation of the hot water main control is performed, the cooling water outlet temperature is higher than the second predetermined temperature. In this case, the control panel (45) operates and the first on-off valve (42)
Since the absorber is opened and closed every predetermined time, the absorption liquid flows into the absorber (5) every predetermined time, the absorption liquid is diluted, the refrigerant absorption capacity of the absorber (5) is gradually decreased, and the cold water outlet temperature is decreased. It is possible to avoid a sharp decrease in the temperature of the cold water, and it is possible to avoid a large increase in the temperature of the cold water outlet due to dilution even when the cold water load is small. Further, the opening and closing of the first opening / closing valve (42) causes the refrigerant liquid in the condenser (3) to move to the first refrigerant drain pipe (4
1) through the absorber (5), the first refrigerant drain pipe (4
It is possible to avoid freezing on the absorber (5) side of 1). Further, the refrigerant liquid alternately flows to the evaporator (4) and the absorber (5) due to the opening and closing of the first opening / closing valve (42), thereby avoiding a large decrease in the refrigerant liquid in the evaporator (4) and refrigerating pump. (19
P) cavitation can be prevented.
又、冷水出口温度が低下した場合には、制御盤（45）
が動作して第１開閉弁（42）へ開信号を出力して、凝縮
器（３）の冷媒液が吸収器（５）へ流れ、冷媒液によっ
て吸収液が急速に稀釈されるので、冷水出口温度の大幅
な低下、蒸発器（４）での冷媒液の氷結を防止すること
ができる。If the cold water outlet temperature drops, the control panel (45)
Operates to output an open signal to the first on-off valve (42), the refrigerant liquid in the condenser (3) flows to the absorber (5), and the absorption liquid is rapidly diluted by the refrigerant liquid, so that the cold water is cooled. It is possible to prevent a large decrease in the outlet temperature and freezing of the refrigerant liquid in the evaporator (4).
又、上記実施例において、温水主制御の運転時、冷却
水温度が低いときには、第１開閉弁（42）を所定時間ご
とに開閉し、冷水出口温度が低下して第２の所定温度以
下になった場合には第１開閉弁（42）を全開にしたが、
第１開閉弁（42）の代わりに、制御弁を第１冷媒ドレン
管（41）に設ける。そして、冷水出口温度が第２の所定
温度より高いときには、例えば第４図に示したように制
御弁の開度を冷却水温度に応じて変化させ、冷却水温度
の低下に伴い開度を大きくすることにより、吸収冷温水
機の運転開始時などに、冷却水温度が低い場合にも、吸
収液濃度の大幅な上昇、冷水出口温度の大幅な低下を回
避して、吸収冷温水機の運転を安定することができる。In the above embodiment, when the temperature of the cooling water is low during the operation of the hot water main control, the first opening / closing valve (42) is opened / closed at predetermined intervals to lower the cold water outlet temperature to the second predetermined temperature or lower. In that case, the first on-off valve (42) was fully opened.
A control valve is provided in the first refrigerant drain pipe (41) instead of the first on-off valve (42). When the chilled water outlet temperature is higher than the second predetermined temperature, the opening degree of the control valve is changed according to the cooling water temperature as shown in FIG. 4, and the opening degree is increased as the cooling water temperature decreases. By doing so, even when the cooling water temperature is low, such as when starting the operation of the absorption chiller-heater, avoiding a large increase in the concentration of the absorbing liquid and a large decrease in the chilled water outlet temperature, Can be stable.
又、上記と同様に第１開閉弁（42）の代わりに制御弁
を第１冷媒ドレン管（41）に設ける。そして、冷水出口
温度が第２の所定温度より高く、かつ、冷却水温度が所
定温度（例えば22℃）より低い場合に制御弁の開度を50
％に、冷水出口温度が第２の所定温度以下の場合に制御
弁の開度を100％にすることにより、冷媒液の氷結、冷
水出口温度の大幅な変動を回避できる。Further, similarly to the above, a control valve is provided in the first refrigerant drain pipe (41) instead of the first opening / closing valve (42). Then, when the cold water outlet temperature is higher than the second predetermined temperature and the cooling water temperature is lower than the predetermined temperature (for example, 22 ° C.), the opening degree of the control valve is set to 50.
%, And when the cold water outlet temperature is equal to or lower than the second predetermined temperature, by setting the opening degree of the control valve to 100%, it is possible to avoid freezing of the refrigerant liquid and large fluctuations of the cold water outlet temperature.
（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であ
り、凝縮器と吸収器とを弁を有した冷媒液ブロー管で接
続し、温水出口温度検出器の検出温度に応じて発生器の
加熱量を制御する温水主制御時、上記弁の開閉或いは開
度を冷却水温度検出器が検出する冷却水温度に応じて制
御装置で制御するので、吸収冷温水機の運転開始時、温
水制御の運転が行われ、かつ、冷却水温度が低い場合
に、上記弁の開閉或いは開度を制御することによって凝
縮器の冷媒液が少しづ吸収器へ流れ、吸収器が稀釈さ
れ、冷水出口温度の大幅な低下を防止でき、又、冷水負
荷が僅かな場合などに稀釈により冷水出口温度が大幅に
上昇することを防止することができる。又、冷媒液ブロ
ー管に冷媒液を流すことによって、冷媒液ブロー管内で
冷媒液が氷結することを防止でき、冷媒液を冷媒液ブロ
ー管を経て確実に蒸発器へ流すことができる。(G) Effect of the Invention The present invention is an absorption chiller-heater configured as described above, in which the condenser and the absorber are connected by a refrigerant liquid blow pipe having a valve, and the temperature detected by the hot water outlet temperature detector is detected. At the time of hot water main control for controlling the heating amount of the generator in accordance with, the control device controls the opening / closing or opening of the valve according to the cooling water temperature detected by the cooling water temperature detector. When the hot water control operation is performed at the start of operation and the cooling water temperature is low, the refrigerant liquid in the condenser gradually flows to the absorber by controlling the opening / closing or opening of the valve, and the absorber is It is possible to prevent the temperature of the cold water outlet from being significantly lowered by being diluted, and to prevent the temperature of the cold water outlet from being greatly increased due to the dilution when the load of the cold water is small. Further, by causing the refrigerant liquid to flow through the refrigerant liquid blow pipe, it is possible to prevent the refrigerant liquid from being frozen in the refrigerant liquid blow pipe, and it is possible to reliably flow the refrigerant liquid through the refrigerant liquid blow pipe to the evaporator.
又、凝縮器と吸収器とを開閉弁を有した冷媒液ブロー
管で接続し、温水出口温度検出器の検出温度に応じて発
生器の加熱量を制御する温水主制御時、冷却水温度検出
器の検出温度が低いときには、この検出温度が所定温度
以上になるまで制御装置は開閉弁に所定時間毎に開信号
と閉信号とを交互に出力し、開閉弁を所定時間毎に開閉
することによって、吸収冷温水機の運転開始などの冷却
水温度が低いときなどに、温水主制御が行われた場合
に、冷水出口温度の大幅な低下を防止でき、又、冷水負
荷が僅かな場合などに吸収液の稀釈によって冷水出口温
度が大幅に上昇することを回避することができ、大幅な
温度変動を抑えて吸収冷温水機の運転をスムーズに開始
させることができる。In addition, the cooling water temperature is detected during hot water main control, in which the condenser and the absorber are connected by a refrigerant liquid blow pipe having an on-off valve, and the heating amount of the generator is controlled according to the temperature detected by the hot water outlet temperature detector. When the detected temperature of the container is low, the control device alternately outputs an open signal and a closed signal to the open / close valve at predetermined time intervals until the detected temperature becomes equal to or higher than the predetermined temperature, and opens / closes the open / close valve at predetermined time intervals. This prevents a large drop in the cold water outlet temperature when the hot water main control is performed when the cooling water temperature is low, such as when the absorption chiller-heater is started, and when the cold water load is small. In addition, it is possible to prevent the temperature of the cold water outlet from significantly increasing due to the dilution of the absorbing liquid, and it is possible to suppress a large temperature fluctuation and to smoothly start the operation of the absorption chiller / hot water generator.
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図は温水入口温度と冷水入口温度とによる冷
水主制御の領域と温水主制御の領域との関係図、第３図
は吸収冷温水機の運転開始時の冷水出口温度、温水出口
温度、冷却水温度などの変化、及び冷媒ポンプ、第1,第
２開閉弁の動作の説明図、第４図は冷却水温度と制御弁
の開度との関係図である。 （１）……高温発生器、（３）……凝縮器、（４）……
蒸発器、（５）……吸収器、（25）……冷却水配管、
（35）……温水器、（41）……第１冷媒液ブロー管、
（42）……第１開閉弁、（45）……制御盤。FIG. 1 is a circuit configuration diagram of an absorption chiller-heater showing an embodiment of the present invention, and FIG. 2 is a relational diagram between a chilled water main control region and a chilled water main control region depending on a hot water inlet temperature and a cold water inlet temperature Fig. 3 is an explanatory diagram of changes in cold water outlet temperature, hot water outlet temperature, cooling water temperature, etc. at the start of operation of the absorption chiller-heater, and operations of the refrigerant pump, the first and second opening / closing valves, and Fig. 4 is cooling It is a relationship diagram of water temperature and the opening degree of a control valve. (1) …… High temperature generator, (3) …… Condenser, (4) ……
Evaporator, (5) …… Absorber, (25) …… Cooling water piping,
(35) …… Water heater, (41) …… First refrigerant liquid blow pipe,
(42) …… First open / close valve, (45) …… Control panel.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−271663（ＪＰ，Ａ) 特開 昭61−240064（ＪＰ，Ａ) 特開 昭62−155478（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-3-271663 (JP, A) JP-A-61-240064 (JP, A) JP-A-62-155478 (JP, A)
Claims (2)
を接続して冷凍サイクルを形成すると共に、この冷凍サ
イクルの高温側に温水器を付設し、かつ、吸収器或いは
凝縮器に冷却水管を接続し、蒸発器から冷水を供給する
と共に、温水器から温水を供給する吸収冷温水機におい
て、凝縮器と吸収器とを接続し途中に弁を有した冷媒液
ブロー管と、蒸発器からの冷水出口温度を検出する冷水
出口温度検出器と、温水器からの温水出口温度を検出す
る温水出口温度検出器と、冷却水の温度を検出する冷却
水温度検出器と、冷水出口温度検出器の検出温度に応じ
て発生器の加熱量を制御する冷水主制御運転と温水出口
温度検出器の検出温度に応じて発生器の加熱量を制御す
る温水主制御運転とを切換え、かつ、温水主制御運転時
には、冷却水温度検出器の検出温度に応じて弁の開閉或
いは開度を制御する制御装置とを備えたことを特徴とす
る吸収冷温水機。1. A generator, a condenser, an evaporator, and an absorber are connected to form a refrigeration cycle, and a water heater is attached to the high temperature side of this refrigeration cycle, and the absorber or the condenser is condensed. A cooling water pipe is connected to the container, and cold water is supplied from the evaporator, and in an absorption chiller-heater that supplies hot water from the water heater, a refrigerant liquid blow pipe having a valve in the middle of connecting the condenser and the absorber. , A cold water outlet temperature detector that detects the cold water outlet temperature from the evaporator, a hot water outlet temperature detector that detects the hot water outlet temperature from the water heater, a cooling water temperature detector that detects the temperature of the cooling water, and a cold water Switch between cold water main control operation that controls the heating amount of the generator according to the detection temperature of the outlet temperature detector and hot water main control operation that controls the heating amount of the generator according to the detection temperature of the hot water outlet temperature detector, In addition, during the hot water main control operation, the cooling water temperature Out instrument detected temperature absorption chiller which is characterized in that a control device for controlling the opening and closing or opening of the valve in accordance with the.
を接続して冷凍サイクルを形成すると共に、この冷凍サ
イクルの高温側に温水器を付設し、かつ、吸収器或いは
凝縮器に冷却水管を接続し、蒸発器から冷水を供給する
と共に、温水器から温水を供給する吸収冷温水機におい
て、凝縮器と吸収器とを接続し途中に開閉弁を有した冷
媒液ブロー管と、蒸発器からの冷水出口温度を検出する
冷水出口温度検出器と、温水器からの温水出口温度を検
出する温水出口温度検出器と、冷却水の温度を検出する
冷却水温度検出器と、冷水出口温度検出器の検出温度に
応じて発生器の加熱量を制御する冷水主制御運転と温水
出口温度検出器の検出温度に応じて発生器の加熱量を制
御する温水主制御運転とを切換え、かつ、温水主制御運
転時で冷却水温度検出器の検出温度が低いときには、こ
の検出温度が所定温度以上になるまで開閉弁に所定時間
毎に開信号と閉信号とを交互に出力する制御装置とを備
えたことを特徴とする吸収冷温水機。2. A generator, a condenser, an evaporator, and an absorber are connected to form a refrigeration cycle, and a water heater is attached to the high temperature side of this refrigeration cycle, and the absorber or the condenser is condensed. In the absorption chiller-heater that connects the cooling water pipe to the container and supplies the cold water from the evaporator and the hot water from the water heater, a refrigerant liquid blow pipe that connects the condenser and the absorber and has an opening / closing valve in the middle A cold water outlet temperature detector that detects the cold water outlet temperature from the evaporator, a hot water outlet temperature detector that detects the hot water outlet temperature from the water heater, and a cooling water temperature detector that detects the temperature of the cooling water, Switch between cold water main control operation that controls the heating amount of the generator according to the detected temperature of the cold water outlet temperature detector and hot water main control operation that controls the heating amount of the generator according to the detected temperature of the hot water outlet temperature detector And, the temperature of the cooling water during hot water main control operation When the detected temperature of the output device is low, the absorption cold temperature is characterized by including a control device that alternately outputs an open signal and a closed signal to the open / close valve at predetermined intervals until the detected temperature becomes equal to or higher than a predetermined temperature. Water machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2113135A JP2523042B2 (en) | 1990-04-27 | 1990-04-27 | Absorption cold water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2113135A JP2523042B2 (en) | 1990-04-27 | 1990-04-27 | Absorption cold water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH049555A JPH049555A (en) | 1992-01-14 |
| JP2523042B2 true JP2523042B2 (en) | 1996-08-07 |
Family
ID=14604441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2113135A Expired - Lifetime JP2523042B2 (en) | 1990-04-27 | 1990-04-27 | Absorption cold water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2523042B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020050928A (en) * | 2000-12-22 | 2002-06-28 | 김형벽ㅂ | Control Method and Structure of Condensate of an Absorption Chiller with Hot Water Supply Function |
| KR100434903B1 (en) * | 2001-10-11 | 2004-06-09 | 디와이 주식회사 | Three-dimensional mathematical interpretation method for preparing ccs tube |
| CN1617665A (en) | 2001-12-14 | 2005-05-18 | 财团法人大阪产业振兴机构 | Animal breeding system and utilization of the system |
| US20070169715A1 (en) | 2004-12-13 | 2007-07-26 | Innovive Inc. | Containment systems and components for animal husbandry |
| US7954455B2 (en) | 2005-06-14 | 2011-06-07 | Innovive, Inc. | Cage cover with filter, shield and nozzle receptacle |
| CA2814085C (en) | 2010-10-11 | 2019-11-26 | Innovive, Inc. | Rodent containment cage monitoring apparatus and methods |
| CA2916310C (en) | 2013-07-01 | 2022-04-19 | Innovive, Inc. | Cage rack monitoring apparatus and methods |
| EP3177134B1 (en) | 2014-07-25 | 2022-08-17 | Innovive, Inc. | Animal containment enrichment compositions and methods |
-
1990
- 1990-04-27 JP JP2113135A patent/JP2523042B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH049555A (en) | 1992-01-14 |
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