JPH0689964B2 - Single-double-effect absorption refrigerator - Google Patents
Single-double-effect absorption refrigeratorInfo
- Publication number
- JPH0689964B2 JPH0689964B2 JP13970785A JP13970785A JPH0689964B2 JP H0689964 B2 JPH0689964 B2 JP H0689964B2 JP 13970785 A JP13970785 A JP 13970785A JP 13970785 A JP13970785 A JP 13970785A JP H0689964 B2 JPH0689964 B2 JP H0689964B2
- Authority
- JP
- Japan
- Prior art keywords
- generator
- heat source
- temperature
- high temperature
- engine
- 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
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- Sorption Type Refrigeration Machines (AREA)
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明はエンジンのジャケットを循環する温水〔エンジ
ンの冷却水〕とエンジンの排ガスとを熱源に用いて運転
する一重二重効用吸収冷凍機（以下、この種の吸収冷凍
機という）の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a single-double-effect absorption refrigerator that operates by using hot water (engine cooling water) circulating in a jacket of an engine and exhaust gas of the engine as heat sources. (Hereinafter, referred to as "absorption refrigerator of this type")
（ロ）従来の技術 この種の吸収冷凍機においては、エンジン側の負荷に応
じてエンジンの動力が制御されるので、例えば冷凍機側
の負荷に対して冷凍機に供給される排ガスやジャケット
温水の熱量が不足したり過大となったりしやすく、発生
器の能力不足や過熱などを引起こしやすい。そのため、
この種の吸収冷凍機の従来の技術として、例えば特開昭
58−86359号公報にみられるように、高温発生器に放熱
器および加熱器としての機能も兼ねる補助凝縮器を付設
し、この補助凝縮器とエンジンのジャケットと低温熱源
発生器とを結ぶ温水回路に流路切換弁を介して補助凝縮
器や低温熱源発生器のバイパス用の複数の温水流路を備
え、かつ、エンジンのジャケットから流出する温水の温
度や高温発生器の液温などを検知しつつ流路切換弁の開
閉を切換えることにより、発生器の能力不足や過熱など
を軽減するものが知られている。(B) Conventional technology In this type of absorption refrigerator, since engine power is controlled according to the load on the engine side, for example, exhaust gas or jacket hot water supplied to the refrigerator with respect to the load on the refrigerator side. It is easy to cause insufficient or excessive heat quantity, and it is easy to cause insufficient capacity and overheating of the generator. for that reason,
As a conventional technique of this type of absorption refrigerator, for example, Japanese Patent Laid-Open No.
As seen in Japanese Patent Laid-Open No. 58-86359, a high temperature generator is provided with an auxiliary condenser that also functions as a radiator and a heater, and a hot water circuit that connects this auxiliary condenser to the engine jacket and the low temperature heat source generator Is equipped with multiple hot water flow paths for bypassing the auxiliary condenser and low temperature heat source generator via the flow path switching valve, and detects the temperature of hot water flowing out from the engine jacket and the liquid temperature of the high temperature generator. Meanwhile, it is known to open and close the flow path switching valve to reduce the insufficient capacity and overheating of the generator.
（ハ）発明が解決しようとする問題点 上記のような従来のこの種の吸収冷凍機においては、低
温熱源発生器の能力不足や高温発生器の過熱をある程度
防ぎ得るものの、排ガス熱量が少なくなり過ぎた場合に
は高温発生器の効率低下を防ぐことがむずかしい問題点
を有し、また、エンジンのジャケットへ戻る温水の温度
を所定の範囲内に保つこともむずかしい上に冷凍効率も
低下しやすい問題点を有している。(C) Problems to be Solved by the Invention In the conventional absorption refrigerator of this kind as described above, the exhaust gas heat amount is reduced although the insufficient capacity of the low temperature heat source generator and the overheat of the high temperature generator can be prevented to some extent. If it is too high, there is a problem that it is difficult to prevent the efficiency of the high temperature generator from decreasing, and it is difficult to keep the temperature of the hot water returning to the engine jacket within a predetermined range, and the refrigeration efficiency tends to decrease. I have a problem.
本発明は、このような問題点に鑑み、冷凍効率（運転効
率）の低下を軽減することが可能であると共にエンジン
のジャケットへ戻る温水の温度をほぼ所定の範囲内に保
つことも可能であるこの種の吸収冷凍機の提供を目的と
したものである。In view of such a problem, the present invention can alleviate a decrease in refrigeration efficiency (operating efficiency) and can also keep the temperature of hot water returning to the engine jacket within a substantially predetermined range. The purpose is to provide an absorption refrigerator of this type.
（ニ）問題点を解決するための手段 本発明は上記問題点を解決するために、低温熱源発生器
の吸収液の温度や蒸気圧など低温熱源発生器に関連する
物理量を検出し、吸収器から低温熱源発生器への吸収液
の流量を調節する第１制御装置と、高温発生器の吸収液
の温度や蒸気圧など高温発生器に関連する物理量を検知
し、低温熱源発生器から高温発生器への吸収液の流量を
調節する第２制御装置とを備えた一重二重吸収冷凍機を
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 detects a physical quantity related to the low temperature heat source generator, such as the temperature or vapor pressure of the absorbing liquid of the low temperature heat source generator, From the low temperature heat source generator by detecting the physical quantity related to the high temperature generator such as the temperature and vapor pressure of the absorption liquid of the high temperature generator And a second control device for adjusting the flow rate of the absorbing liquid to the container.
（ホ）作用 本発明の吸収冷凍機においては、例えばエンジンの動力
が弱められて高温発生器に供給される排ガスと低温熱源
発生器に供給される温水のエンタルピーが小さくなりこ
れら発生器内の温度や蒸気圧が降下し始めた場合、第１
制御装置と第２制御装置とでこれら発生器へ送る吸収液
の流量を減らすことにより、吸収液が沸騰温度まで昇温
するための熱量消費（顕熱消費）を少なくして排ガスや
ジャケット温水の熱の大部分を吸収液の濃縮〔冷媒蒸気
の発生〕に消費させることができるので、その運転効率
〔冷凍効率〕の悪化を防ぐことが可能であり、かつ、こ
れら発生器における吸収液の濃縮の度合（吸収液の濃
度）、その飽和蒸気圧および飽和温度をエンジンの動力
の弱められる以前と同程度に保つことも可能となる。こ
のように、本発明においては、エンジンの動力の大小に
伴なって変化する低温熱源発生器および高温発生器内の
液温や蒸気圧などを検知しつつこれら発生器へ送る吸収
液の流量を増減調節することにより、これら発生器内の
吸収液の濃度、飽和蒸気圧、飽和温度をほぼ所定の範囲
内に保つ機能（作用）と運転効率を良好に保つ機能とを
この種の吸収冷凍機にもたせることが可能となる。そし
て、低温熱源発生器内の吸収液の飽和温度をほぼ所定の
範囲内に保つ機能により、この発生器から流出する温水
すなわちエンジンのジャケットへ戻る温水がほぼ所定範
囲内の温度に保たれるため、エンジンの過熱や冷え過ぎ
なども防止することができる。(E) Action In the absorption refrigerator of the present invention, the enthalpy of the exhaust gas supplied to the high temperature generator and the enthalpy of the hot water supplied to the low temperature heat source generator are reduced due to the weakened power of the engine, and the temperature inside these generators decreases. Or if the vapor pressure begins to drop
By reducing the flow rate of the absorption liquid sent to these generators by the control device and the second control device, the heat consumption (sensible heat consumption) for raising the absorption liquid to the boiling temperature is reduced to reduce exhaust gas and jacket hot water. Since most of the heat can be consumed for concentrating the absorption liquid [generation of refrigerant vapor], it is possible to prevent deterioration of its operating efficiency [refrigeration efficiency], and to condense the absorption liquid in these generators. It is also possible to keep the degree (concentration of the absorbing liquid), its saturated vapor pressure and the saturated temperature at the same level as before the engine power was weakened. As described above, in the present invention, the flow rate of the absorbing liquid sent to these generators is detected while detecting the liquid temperature and the vapor pressure in the low temperature heat source generator and the high temperature generator that change with the magnitude of the power of the engine. By adjusting the increase and decrease, the function (action) of keeping the concentration, the saturated vapor pressure, and the saturation temperature of the absorbing liquid in these generators within a substantially predetermined range and the function of keeping the operating efficiency good are provided. It becomes possible to give it to. The function of keeping the saturated temperature of the absorbing liquid in the low-temperature heat source generator within a predetermined range keeps the hot water flowing out of this generator, that is, the hot water returning to the engine jacket, at a temperature within a predetermined range. It is also possible to prevent the engine from overheating or becoming too cold.
（ヘ）実施例 図面は本発明によるこの種の吸収冷凍機の一実施例を示
した概略構成説明図である。図において、（１）は高温
発生器、（２）は低温熱源発生器（３）と低温発生器
（４）と凝縮器（５）とより成る発生凝縮器、（６）は
蒸発器（７）と吸収器（８）とより成る蒸発吸収器、
（９）、（10）は溶液熱交換器、（11）は冷媒液ポン
プ、（12）、（13）は第１、第２溶液ポンプで、これら
は冷媒の流れる管（14）、（15）、冷媒液の流下する管
（16）、冷媒液の還流する管（17）、（18）、吸収液の
送られる管（19）、（20）、（21）、吸収液の流れる管
（22）、（23）、吸収液の送られる管（24）、（25）、
（26）、吸収液の流れる管（27）、（28）、吸収液の流
下する管（29）により接続されて従来のこの種の吸収冷
凍機と同様の冷媒〔水〕および吸収液〔臭化リチウム水
溶液〕の循環路を構成している。(F) Embodiments The drawings are schematic configuration diagrams showing an embodiment of an absorption refrigerator of this type according to the present invention. In the figure, (1) is a high temperature generator, (2) is a low temperature heat source generator (3), a low temperature generator (4) and a condenser formed by a condenser (5), and (6) is an evaporator (7). And an absorber (8),
(9) and (10) are solution heat exchangers, (11) is a refrigerant liquid pump, (12) and (13) are first and second solution pumps, and these are refrigerant flow pipes (14) and (15). ), A pipe (16) for flowing down the refrigerant liquid, pipes (17), (18) for returning the refrigerant liquid, pipes (19), (20), (21) for sending the absorbing liquid, and pipes for flowing the absorbing liquid ( 22), (23), pipes (24), (25), through which absorption liquid is sent
(26), the pipes (27) and (28) through which the absorption liquid flows, and the pipe (29) through which the absorption liquid flows down to connect the same refrigerant [water] and absorption liquid [odor] as those of conventional absorption refrigerators of this type. Aqueous solution of lithium chloride].
（30）、（30）…は高温発生器（１）の加熱管、（31）
は低温発生器（４）の給熱器、（32）は低温熱源発生器
（３）の加熱器、（33）、（34）はそれぞれ凝縮器
（５）、吸収器（８）の冷却器であり、（35）は蒸発器
（７）に内蔵した冷水器である。そして、（36）、（3
7）、（38）は冷却器（34）、（33）を直列に結んだ冷
却水の流れる管であり、（39）、（40）は冷水器（35）
と負荷側熱交換ユニット〔図示せず〕を結んだ冷水の流
れる管である。(30), (30) ... are heating tubes of the high temperature generator (1), (31)
Is a heat source of the low temperature generator (4), (32) is a heater of the low temperature heat source generator (3), (33) and (34) are condensers (5) and coolers of the absorber (8), respectively. And (35) is a water cooler built in the evaporator (7). And (36), (3
7) and (38) are cooling water flow pipes in which coolers (34) and (33) are connected in series, and (39) and (40) are chillers (35).
And a load side heat exchange unit (not shown), which is a pipe through which cold water flows.
（41）は発電プラントなどの設備に用いられているエン
ジンで、このエンジンの燃焼排ガス出口と高温発生器
（１）の加熱管（30）、（30）…がダクト（42）で結ば
れており、エンジン（41）のジャケット〔図示せず〕と
低温熱源発生器（３）の加熱器（32）とがポンプ（43）
付きの管（44）および管（45）で結ばれて温水の循環路
が構成されている。また、（46）は高温発生器（１）の
排ガス用ダクトで、このダクトを介して高温発生器
（１）内の吸収液を加熱した後の排ガスが大気中へ放出
される。(41) is an engine used in equipment such as a power plant. The combustion exhaust gas outlet of this engine and the heating pipes (30), (30) of the high temperature generator (1) are connected by a duct (42). The pump (43) is provided between the jacket (not shown) of the engine (41) and the heater (32) of the low temperature heat source generator (3).
The pipe (44) and the pipe (45) attached to each other form a circulation path of hot water. Further, (46) is an exhaust gas duct of the high temperature generator (1) through which the exhaust gas after heating the absorbing liquid in the high temperature generator (1) is released to the atmosphere.
（Ｓt1）は低温熱源発生器（３）内の吸収液の温度を感
知する検出器、（Ｓp1）は発生凝縮器（２）内の圧力を
感知する検出器、（S1）は管（45）内の温水の温度を感
知する検出器で、これら検出器のいずれかの信号により
第１制御器（C1）を介して第１溶液ポンプ（12）の吐出
量または管（21）に備えた流量制御弁（V1）の開度が調
節されるようになっている。また、（Ｓt2）は高温発生
器（１）内の吸収液の温度を感知する検出器、（Ｓp2）
は高温発生器（１）内の圧力を感知する検出器、（S2）
は排ガス用ダクト（46）内の排ガスの温度を感知する検
出器で、これら検出器のいずれかの信号により第２制御
器（C2）を介して第２溶液ポンプ（13）の吐出量または
管（26）に備えた流量制御弁（V2）の開度が調節される
ようになっている。(S t1 ) is a detector for detecting the temperature of the absorbing liquid in the low temperature heat source generator (3), (S p1 ) is a detector for detecting the pressure in the generating condenser (2), and (S 1 ) is a pipe. A detector for detecting the temperature of hot water in (45), and the discharge amount of the first solution pump (12) or the pipe (21) via the first controller (C 1 ) by the signal of any of these detectors. The opening of the flow control valve (V 1 ) provided in the is adjusted. Further, (S t2 ) is a detector for sensing the temperature of the absorbing liquid in the high temperature generator (1), (S p2 )
Is a detector that senses the pressure in the high temperature generator (1), (S 2 )
Is a detector for detecting the temperature of the exhaust gas in the exhaust gas duct (46), and the output of the second solution pump (13) or the discharge amount of the second solution pump (13) via the second controller (C 2 ) according to the signal from any of these detectors. The opening of the flow control valve (V 2 ) provided in the pipe (26) is adjusted.
次に、このように構成されたこの種の吸収冷凍機（以
下、本機という）の動作例を説明する。Next, an operation example of this type of absorption refrigerating machine (hereinafter referred to as this machine) configured as described above will be described.
今、本機の運転中にエンジン（41）側の負荷（例えば電
力需要）が減りこれに合わせてエンジン（41）の動力を
弱める制御がなされた場合、エンジン（41）の発熱量が
減少してそのジャケットから低温熱源発生器（３）へ供
給される温水および高温発生器（１）に供給される燃焼
排ガスのエンタルピーが小さくなるため、これら発生器
（１）、（３）での冷媒蒸気の発生量が減り始め、高温
発生器（１）および発生凝縮器（２）内の蒸気圧が低下
し始めると共にこれら発生器内の吸収液の温度も降下し
始める。そして、これをそのまま放置すると吸収液の濃
縮〔冷媒蒸気の発生〕が十分なされずに本機の運転効率
（冷凍効率）の悪化を引起こすと同時に管（45）内の温
水の温度すなわちエンジン（41）のジャケットへの温水
の戻り温度も低くなってエンジン（41）の冷え過ぎを引
起こす。If the load on the engine (41) side (for example, power demand) is reduced while the machine is operating and control is performed to weaken the power of the engine (41) accordingly, the heat generation amount of the engine (41) will decrease. Since the enthalpy of the hot water supplied from the jacket to the low temperature heat source generator (3) and the combustion exhaust gas supplied to the high temperature generator (1) are small, the refrigerant vapor in these generators (1), (3) Of the generated liquid begins to decrease, the vapor pressure in the high temperature generator (1) and the generation condenser (2) begins to decrease, and the temperature of the absorbing liquid in these generators also starts to decrease. If this is left as it is, the concentration of the absorption liquid [generation of refrigerant vapor] is not sufficient and the operating efficiency (refrigeration efficiency) of the machine is deteriorated, and at the same time, the temperature of the hot water in the pipe (45), that is, the engine ( The return temperature of the hot water to the jacket of 41) also becomes low, causing the engine (41) to become too cold.
このような場合、本機においては、検出器（Ｓt1）、
（Ｓp1）、（S1）のいずれかの信号で第１制御器（C1）
を介して第１溶液ポンプ（12）の吐出量または流量制御
弁（V1）の開度を減じることにより低温熱源発生器
（３）への吸収液の送り量が減らされると共に、検出器
（Ｓt2）（Ｓp2）（S2）のいずれかの信号で第２制御器
（C2）を介して第２溶液ポンプ（13）の吐出量または流
量制御弁（V2）の開度を減じることにより高温発生器
（１）への吸収液の送り量が減らされる。その結果、高
温発生器（１）および低温熱源発生器（３）内の吸収液
の顕熱消費量〔吸収液を沸騰温度まで昇温させるのに必
要な熱量〕が少なくなり、その分、燃焼排ガスおよび温
水の熱の多くが吸収液から冷媒を分離させる〔吸収液を
濃縮する〕のに消費（以下、吸収液の潜熱消費という）
されることになる。このため、本機においては、良好に
冷媒蒸気を発生させて吸収液を濃縮することができ、運
転効率の低下を防ぐことができる。かつまた、低温熱源
発生器（３）での吸収液の濃縮の度合すなわち濃度をエ
ンジン（41）の動力の弱められる以前と同程度にするこ
とも可能となる。このように、低温熱源発生器（３）内
の吸収液の濃度をほぼ一定の範囲内に保つことによっ
て、その飽和蒸気圧および飽和温度〔沸騰温度〕すなわ
ち低温熱源発生器（３）内の吸収液温度をほぼ一定の範
囲内に保ち得るので、この発生器から流出する温水言い
代えればエンジン（41）のジャケットへ戻る温水の温度
をほぼ所定の範囲内に維持できる。したがって、エンジ
ン（41）の冷え過ぎを引起こすようなこともない。In such a case, the detector (S t1 ),
(S p1), (S 1 ) the first controller in either of the signals (C 1)
By reducing the discharge amount of the first solution pump (12) or the opening degree of the flow rate control valve (V 1 ) via the flow rate of the absorption liquid to the low temperature heat source generator (3), the detector ( Either the signal of S t2 ) (S p2 ) (S 2 ) is used to control the discharge amount of the second solution pump (13) or the opening of the flow control valve (V 2 ) via the second controller (C 2 ). By reducing the amount, the feed amount of the absorbing liquid to the high temperature generator (1) is reduced. As a result, the amount of sensible heat consumed by the absorbing liquid in the high-temperature generator (1) and the low-temperature heat source generator (3) [the amount of heat required to raise the absorbing liquid to the boiling temperature] decreases, and the combustion amount increases. Most of the heat of exhaust gas and hot water is consumed to separate the refrigerant from the absorption liquid [concentrate the absorption liquid] (hereinafter referred to as latent heat consumption of the absorption liquid)
Will be done. Therefore, in this machine, it is possible to satisfactorily generate the refrigerant vapor and concentrate the absorbing liquid, and it is possible to prevent a decrease in operating efficiency. Further, it is also possible to make the degree of concentration of the absorption liquid in the low temperature heat source generator (3), that is, the concentration, the same as before the power of the engine (41) was weakened. Thus, by keeping the concentration of the absorbing liquid in the low temperature heat source generator (3) within a substantially constant range, its saturated vapor pressure and saturation temperature [boiling temperature], that is, absorption in the low temperature heat source generator (3). Since the liquid temperature can be maintained within a substantially constant range, the temperature of the hot water flowing out from this generator, in other words, the temperature of the hot water returning to the jacket of the engine (41) can be maintained within a substantially predetermined range. Therefore, the engine (41) does not become too cold.
そして、逆にエンジン（41）の動力が強められた場合に
は高温発生器（１）および低温熱源発生器（３）への吸
収液の送り量が増大するよう制御されることにより、燃
焼排ガスおよび温水のエンタルピーの増大に応じて吸収
液の顕熱消費量を調整しつつ燃焼排ガスおよび温水の熱
量に対する吸収液の潜熱消費量の割合をエンジン（41）
の動力の強められる以前と同程度にすることが可能とな
る。その結果、低温熱源発生器（３）内の吸収液温をほ
ぼ所定の範囲内に保つことができ、この発生器から流出
する温水の過度の温度上昇を防いでエンジン（41）の過
熱を防止することができる。On the contrary, when the power of the engine (41) is strengthened, the feed amount of the absorbing liquid to the high temperature generator (1) and the low temperature heat source generator (3) is controlled to increase, so that the combustion exhaust gas The ratio of the latent heat consumption of the absorbing liquid to the heat quantity of the combustion exhaust gas and the hot water is adjusted while adjusting the sensible heat consumption of the absorbing liquid according to the increase in the enthalpy of hot water and the engine (41).
It is possible to achieve the same level as before the power of was strengthened. As a result, the temperature of the absorbing liquid in the low temperature heat source generator (3) can be maintained within a substantially predetermined range, and the excessive temperature rise of the hot water flowing out of this generator can be prevented to prevent the engine (41) from overheating. can do.
また、本機においては、第１溶液ポンプ（12）の吐出量
と第２溶液ポンプ（13）の吐出量〔あるいは流量制御弁
（V1）の開度と流量制御弁（V2）の開度〕を同時に調節
しているので、吸収器（８）から低温熱源発生器（３）
への吸収液の送り量と低温熱源発生器（３）から高温発
生器（１）への吸収液の送り量とをほぼ同じ量にするこ
とが可能であり、吸収液がこれら発生器のいずれかに偏
在することを防止でき、溶液ポンプのキャビテーション
などを防止できる。言い代えれば吸収液の循環を良好に
継続させることができる。なお、溶液ポンプ（12）、
（13）や流量制御弁（V1）、（V2）の制御度合はこの種
の吸収冷凍機の容量やエンジン（41）の容量などの仕様
に応じて選定される。Also, in this machine, the discharge rate of the first solution pump (12) and the discharge rate of the second solution pump (13) [or the opening degree of the flow rate control valve (V 1 ) and the opening rate of the flow rate control valve (V 2 ). Since the temperature is adjusted simultaneously, the absorber (8) to the low temperature heat source generator (3)
It is possible to make the feed rate of the absorbing liquid to the high temperature generator (1) and the feed rate of the absorbing liquid to the high temperature generator (1) almost equal to each other. It is possible to prevent uneven distribution of the crab and to prevent cavitation of the solution pump. In other words, the circulation of the absorbing liquid can be favorably continued. The solution pump (12),
The degree of control of (13) and the flow control valves (V 1 ) and (V 2 ) is selected according to specifications such as the capacity of this type of absorption refrigerator and the capacity of the engine (41).
なおまた、エンジン（41）の動力変化の影響を受けて変
化する物理量には吸収液の濃度や冷媒蒸気の温度なども
あるので、本機に用いる検出器は図示したものに限定さ
れない。Further, since the physical quantity that changes under the influence of the power change of the engine (41) also includes the concentration of the absorbing liquid and the temperature of the refrigerant vapor, the detector used in this machine is not limited to that shown in the figure.
（ト）発明の効果 本発明は以上のように構成された一重二重効用吸収冷凍
機であり、低温熱源発生器の吸収液の温度や蒸気圧など
低温熱源発生器に関連する物理量を検出し、吸収器から
低温熱源発生器への吸収液の流量を調節する第１制御装
置と、高温発生器の吸収液の温度や蒸気圧など高温発生
器に関連する物理量を検知し、低温熱源発生器から高温
発生器への吸収液の流量を調節する第２制御装置とを備
えているので、エンジン側の動力が弱められた場合にこ
の種の吸収冷凍機の運転効率の低下を軽減できる効果が
もたらされ、かつ、エンジンの動力の変動に対してこの
種の吸収冷凍機の低温熱源発生器から流出する温水すな
わちエンジンのジャケットへ戻る温水の温度変動を小さ
くし、エンジンの冷え過ぎや過熱を防ぐ効果がもたらさ
れる。(G) Effect of the Invention The present invention is a single-effect double-effect absorption refrigerator configured as described above, and detects physical quantities related to the low temperature heat source generator such as the temperature and vapor pressure of the absorbing liquid of the low temperature heat source generator. , A first control device that adjusts the flow rate of the absorbing liquid from the absorber to the low temperature heat source generator, and a physical quantity related to the high temperature generator such as the temperature of the absorbing liquid of the high temperature generator and the vapor pressure is detected to detect the low temperature heat source generator. Since the second control device for adjusting the flow rate of the absorbing liquid from the engine to the high temperature generator is provided, it is possible to reduce the decrease in the operating efficiency of this type of absorption refrigerator when the power on the engine side is weakened. The temperature fluctuation of the hot water that is caused by the fluctuation of the power of the engine and that flows out from the low temperature heat source generator of this type of absorption refrigerator, that is, the temperature of the hot water that returns to the jacket of the engine is reduced to prevent the engine from overcooling or overheating. Has the effect of preventing Be done.
図面は本発明によるこの種の吸収冷凍機の一実施例を示
した概略構成説明図である。 （１）……高温発生器、（２）……発生凝縮器、（３）
……低温熱源発生器、（４）……低温発生器、（５）…
…凝縮器、（６）……蒸発吸収器、（７）……蒸発器、
（８）……吸収器、（９）、（10）……溶液熱交換器、
（12）、（13）……第１、第２溶液ポンプ、（19）、
（20）、（21）……管、（24）、（25）、（26）……
管、（30）……加熱管、（31）……給熱器、（32）……
加熱器、（33）、（34）……冷却器、（35）……冷水
器、（41）……エンジン、（42）……ダクト、（44）、
（45）……管、（46）……排ガス用ダクト、（C1）、
（C2）……第１、第２制御器、（Ｓt1）、（Ｓp1）、
（S1）、（Ｓt2）、（Ｓp2）、（S2）……検出器、
（V1）、（V2）……流量制御弁。The drawings are schematic explanatory views showing an embodiment of an absorption refrigerator of this type according to the present invention. (1) …… High temperature generator, (2) …… Generation condenser, (3)
...... Low temperature heat source generator, (4) ...... Low temperature generator, (5) ...
… Condenser, (6) …… Evaporation absorber, (7) …… Evaporator,
(8) ... Absorber, (9), (10) ... Solution heat exchanger,
(12), (13) ... First and second solution pumps, (19),
(20), (21) …… pipe, (24), (25), (26) ……
Tube, (30) …… heating tube, (31) …… heater, (32) ……
Heater, (33), (34) …… cooler, (35) …… cooler, (41) …… engine, (42) …… duct, (44),
(45) …… pipe, (46) …… exhaust gas duct, (C 1 ),
(C 2 ) ... First and second controllers, (S t1 ), (S p1 ),
(S 1 ), (S t2 ), (S p2 ), (S 2 ) ... Detector,
(V 1 ), (V 2 ) ... Flow control valve.
Claims (1)
源とする低温熱源発生器、高温発生器、この高温発生器
で吸収液より分離された冷媒を熱源とする低温発生器、
凝縮器、蒸発器、吸収器、溶液熱交換器および吸収器か
ら低温熱源発生器へ吸収液を送る第１溶液ポンプならび
に低温熱源発生器から高温発生器へ吸収液を送る第２溶
液ポンプを配管接続してなる一重二重効用吸収冷凍機に
おいて、低温熱源発生器の吸収液の温度や蒸気圧など低
温熱源発生器に関連する物理量を検知し、吸収器から低
温熱源発生器への吸収液の流量を調節する制御装置と、
高温発生器の吸収液の温度や蒸気圧など高温発生器に関
連する物理量を検知し、低温熱源発生器から高温発生器
への吸収液の流量を調節する制御装置とが備えられてい
ることを特徴とした一重二重効用吸収冷凍機。1. A low temperature heat source generator using hot water circulating in an engine jacket as a heat source, a high temperature generator, and a low temperature generator using a refrigerant separated from an absorption liquid by the high temperature generator as a heat source.
Piping the condenser, the evaporator, the absorber, the solution heat exchanger, and the first solution pump that sends the absorbing liquid from the absorber to the low temperature heat source generator, and the second solution pump that sends the absorbing liquid from the low temperature heat source generator to the high temperature generator. In the connected single-double-effect absorption refrigerator, the physical quantity related to the low-temperature heat source generator such as the temperature and vapor pressure of the absorption liquid of the low-temperature heat source generator is detected, and the absorption liquid from the absorber to the low-temperature heat source generator is detected. A controller for adjusting the flow rate,
It is equipped with a control device that detects the physical quantity related to the high temperature generator such as the temperature and vapor pressure of the absorption liquid of the high temperature generator and adjusts the flow rate of the absorption liquid from the low temperature heat source generator to the high temperature generator. Characterized single and double effect absorption refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13970785A JPH0689964B2 (en) | 1985-06-26 | 1985-06-26 | Single-double-effect absorption refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13970785A JPH0689964B2 (en) | 1985-06-26 | 1985-06-26 | Single-double-effect absorption refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62777A JPS62777A (en) | 1987-01-06 |
| JPH0689964B2 true JPH0689964B2 (en) | 1994-11-14 |
Family
ID=15251544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13970785A Expired - Lifetime JPH0689964B2 (en) | 1985-06-26 | 1985-06-26 | Single-double-effect absorption refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0689964B2 (en) |
-
1985
- 1985-06-26 JP JP13970785A patent/JPH0689964B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62777A (en) | 1987-01-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |