JPS62777A - Single-double effect absorption refrigerator - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

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) Industrial Application Field The present invention relates to a single-double effect absorption refrigerating machine that operates using hot water (engine cooling water) circulating through an engine jacket and engine exhaust gas as a heat source. (hereinafter referred to as this type of absorption refrigerator).

（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り流路切換
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 chiller, the engine power is controlled according to the load on the engine, so for example, the exhaust gas or jacket hot water supplied to the chiller is The amount of heat is likely to be insufficient or excessive, which can easily cause insufficient capacity or overheating of the generator. Therefore,
As a conventional technology for this type of absorption refrigerator, for example, as seen in Japanese Patent Application Laid-Open No. 58-86359, an auxiliary condenser that also functions as a radiator and a heater is attached to a high-temperature generator. The hot water circuit connecting the condenser, the engine jacket, and the low temperature heat source generator is provided with multiple hot water flow paths for bypassing the auxiliary condenser and the low temperature heat source generator via flow path switching valves, and There is a known system that detects the temperature of outflowing hot water and the temperature of the liquid in a high-temperature generator and switches the opening and closing of a hanging flow path switching valve to alleviate problems such as 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 type as described above, although it is possible to prevent the insufficient capacity of the low-temperature heat source generator and the overheating of the high-temperature generator to some extent, the amount of exhaust gas heat is small. If the temperature is exceeded, it is difficult to prevent the efficiency of the high temperature generator from decreasing, and it is also difficult to maintain the temperature of the hot water returning to the engine jacket within a specified range, and the refrigeration efficiency is also likely to decrease. There are problems.

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 these problems, the present invention reduces the decrease in refrigeration efficiency (operating efficiency). The object of the present invention is to provide an absorption refrigerating machine of this type, which is capable of maintaining the temperature of hot water returned to the engine jacket within a substantially predetermined range.

に）問題点を解決するための手段 本発明は、上記の問題点を解決する手段として、この種
の吸収冷凍機において、低温熱源発生器内の液温や蒸気
圧などこの発生器に関連する物理量を検知しつつ吸収器
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、高温発生器内の液温や蒸気圧などこの発生器
に関連する物理量を検知しつつ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
える構成としたものである。B.) Means for Solving the Problems The present invention, as a means for solving the above-mentioned problems, provides an absorption chiller of this kind, in which the temperature and vapor pressure within the low-temperature heat source generator are reduced. A first control device that adjusts the flow rate of absorption liquid from the absorber to the low-temperature heat source generator while detecting physical quantities; The second control device adjusts the flow rate of the absorption liquid from the heat source generator to the high temperature generator.

（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カスと低温熱源
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
れら発生器内の液温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域の濃縮〔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) Effect In the absorption refrigerator of the present invention, for example, the power of the engine is weakened, and the enthalpy of waste gas supplied to the high temperature generator and the hot water supplied to the low temperature heat source generator are reduced, and the enthalpy of the hot water supplied to the low temperature heat source generator is reduced. If the liquid temperature or vapor pressure begins to drop, the first
By reducing the flow rate of the absorption liquid sent to these generators by the control device and the second control device, the amount of heat consumed to raise the temperature of the absorption liquid to the boiling temperature (sensible heat consumption) is reduced, and the exhaust gas and jacket hot water are reduced. Since most of the heat can be consumed for concentrating the absorption zone (generation of refrigerant vapor), it is possible to prevent the deterioration of the operating efficiency (refrigeration efficiency), and also for concentrating the absorption liquid in these generators. It is also possible to maintain the degree of absorption liquid (concentration of the absorption liquid), its saturated vapor pressure, and its saturated temperature at the same level as before the engine power was weakened. In this way, in the present invention, the flow rate of the absorption liquid sent to these generators is controlled while detecting the liquid temperature and vapor pressure in the low-temperature heat source generator and the high-temperature generator, which change with the magnitude of engine power. This type of absorption chiller has the function (action) of keeping the concentration, saturated vapor pressure, and saturated temperature of the absorbing liquid in the generator approximately within a predetermined range by adjusting the increase/decrease, and the function of maintaining good operating efficiency. This makes it possible to hold it in place. The function of keeping the saturation temperature of the absorption liquid in the low-temperature heat source generator within a predetermined range ensures that the hot water flowing out of the generator, that is, the hot water that returns to the engine jacket, is kept within a predetermined temperature range. It also prevents the engine from overheating or cooling down.

（へ）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、ｔ　１１　Ｌ
、Ｓ　ｌｆ　１日５ａｔ＋肥　ＩＱＩ　＋命１＜　Ｗｄ
　ｈｈ　ｘｓ　ム出Ｑ！Ｌ　Ｉ　ＱＩ　Ｌ　ＩＬ　：ｒ
ｄ　”ＩＬ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）、Ｑｏｌは溶液熱交換器、αＤは冷
媒液ポンプ、圓、Ｇ３は第１、第２溶液ポンプで、これ
らは冷媒の流れる管圓、霞、冷媒液の流下する管１ｂｌ
、冷媒液の還流する管αη、（１阻吸収液の送られる管
＜１１．■、Ｃυ、吸収液の流れる管器、［有］、吸収
液の送られる管ｃ！４１゜（ハ）、（ハ）、吸収液の流
れる前額、（２）、吸収液の流下する管器により構成さ
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) Embodiment The drawing is a schematic structural diagram showing an embodiment of this type of absorption refrigerator according to the present invention. In the figure, t 11 L
, S lf 5 at a day + fertilizer IQI + life 1 < Wd
hh xs mu de Q! L I QI L IL :r
d "Generation condenser consisting of IL generator (4) and condenser (5), (6) evaporator absorber consisting of evaporator (7) and absorber (8), (9), Qol is the solution Heat exchanger, αD is a refrigerant liquid pump, circle, G3 is the first and second solution pump, these are the pipe circle through which the refrigerant flows, Kasumi, the pipe 1bl through which the refrigerant liquid flows.
, the pipe through which the refrigerant liquid flows back αη, (1 the pipe through which the absorption liquid is sent <11.■, Cυ, the pipe through which the absorption liquid flows, [Yes], the pipe through which the absorption liquid is sent c! 41° (c), (c) A front frame through which the absorption liquid flows; (2) Consisting of a tube through which the absorption liquid flows, the refrigerant [water] and absorption liquid [lithium bromide aqueous solution] are similar to those in conventional absorption refrigerators of this type. It constitutes a circulation path.

（至）、（至）・・・は高温発生器（１）の加熱管、Ｃ
（１）は低温発生器（４）の給熱器、Ｇ２は低温熱源発
生器（３）の加熱器、缶、（２）はそれぞれ凝縮器（５
）、吸収器（８）の冷却器であり、（ハ）は蒸発器（７
）に内蔵した冷水器である。そして、（ト）、Ｇ′？）
、關は冷却器（２）、田を直列に結んだ冷却水の流れる
管であり、（３９、（４［）は冷水器（ハ）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。(to), (to)... are heating tubes of high temperature generator (1), C
(1) is the heat feeder of the low temperature generator (4), G2 is the heater and can of the low temperature heat source generator (3), and (2) is the condenser (5), respectively.
) is a cooler for the absorber (8), and (c) is a cooler for the evaporator (7).
) is a built-in water cooler. And (G), G′? )
, is a pipe through which cooling water flows that connects the cooler (2) and the rice field in series, and (39, (4) connects the water cooler (c) and the load-side heat exchange unit [not shown]). It 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（至）、（３０）・・・がダクト（４シ
で結ばれており、エンジン（４υのジャケット〔図示せ
ず〕と低温熱源発生器（３）の加熱器Ｃ３２とがポンプ
（４３付きの管ｔ４４）および管（４四で結ばれて温水
の循環路が構成されている。また、ｆ４６）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 power generation plants, and the combustion exhaust gas outlet of this engine and the heating pipe (to) of the high temperature generator (1), (30)... are connected by a duct (4). The engine (4υ jacket [not shown]) and the heater C32 of the low temperature heat source generator (3) are connected to the pump (tube T44 with 43) and the pipe (44) to form a hot water circulation path. Further, f46) is an exhaust gas duct of the high temperature generator (1), through which the exhaust gas after heating the absorption liquid in the high temperature generator (1) is released into the atmosphere.

（Ｓｔ＋　）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、（Ｓｐ＋　）は発生凝縮器（２）内
の圧力を感知する検出器、（Ｓｌ）は管（４５１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（Ｃ４）を介して第１溶液ポン
プ（１カの吐出量または管（２Ｉ）に備えた流量制御弁
（Ｖ、）の開度が調節されるようになっている。また、
（Ｓｔ＝）は高温発生器（１）内の吸収液の温度を感知
する検出器、Ｃ８，ｔ　）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（４ｅ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（１３１の吐出量または管器に備えた流量制御
弁（ｖ２）の開度が調節されるようになっている。(St+) is a detector that senses the temperature of the absorption liquid in the low-temperature heat source generator (3), (Sp+) is a detector that senses the pressure in the generation condenser (2), and (Sl) is a detector that senses the pressure in the tube (451). A detector that senses the temperature of the hot water, and a signal from one of these detectors is used to control the discharge amount of the first solution pump (or the flow rate of the pipe (2I)) via the first controller (C4). The opening degree of the valve (V,) is adjusted.
(St=) is a detector that senses the temperature of the absorption liquid in the high temperature generator (1), C8,t) is a detector that senses the pressure in the high temperature generator (1), (S2) is the exhaust gas duct (A detector that senses the temperature of the exhaust gas in 4e, and the signal from either of these detectors controls the discharge amount of the second solution pump (131 or the flow rate provided in the pipe) via the second controller (C2). The opening degree of the valve (v2) 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 example of the operation of this type of absorption refrigerating machine (hereinafter referred to as the present machine) configured as described above will be explained.

今、本機の運転中にエンジン＋４１１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（４１１の動
力を弱める制御がなされた場合、エンジン（４ＩＪ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）Ｋ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
が降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（ハ）
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。Now, if the load (for example, electricity demand) on the engine +411 side decreases while the machine is operating, and control is performed to weaken the power of the engine (411) in accordance with this, the heat generation amount of the engine (4IJ will decrease and the power will be removed from its jacket). Low temperature heat source generator (3
) and the enthalpy of the flue gas supplied to the high-temperature generator (1)K decreases, the amount of refrigerant vapor generated in these generators (1) and (3) begins to decrease, and the high-temperature generator As the vapor pressure in (1) and generation condenser (2) begins to fall, the temperature of the absorption liquid in these generators also begins to fall. If this is left as it is, the absorption liquid will not be sufficiently concentrated (refrigerant vapor generation), causing deterioration of the operating efficiency (refrigeration efficiency) of the machine, and at the same time, the pipe (c)
The temperature of the hot water inside the engine (41), that is, the temperature of the hot water returned to the jacket of the engine (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（Ｓｔ＋χ（
ｓｐ＋）、（Ｓｌ）のいずれかの信号で第１制御器（Ｃ
１）を介して第１溶液ポンプ（１４の吐出量または流量
制御弁（Ｖ＋）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（Ｓｔｚ）、（ｓｐ２）、（Ｓｔ）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（１＆の
吐出量または流量制御弁（■２）の開度を減じることに
より高温発生器（１）への吸収液の送り竜が減らされる
。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〔吸収液ヲ）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（４Ｉ）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。In such a case, this device uses a detector (St+χ(
The first controller (C
By reducing the discharge amount of the first solution pump (14) or the opening degree of the flow rate control valve (V+) via the first solution pump (1), the amount of absorption liquid sent to the low temperature heat source generator (3) is reduced, and the amount of absorption liquid sent to the low temperature heat source generator (3) is reduced. By reducing the discharge amount of the second solution pump (1&) or the opening degree of the flow rate control valve (■2) via the second controller (C2) using any of the signals Stz), (sp2), and (St). The flow of absorption liquid to the high temperature generator (1) is reduced.As a result, the high temperature generator (1) and the low temperature heat source generator (
3) The sensible heat consumption of the absorption liquid (the amount of heat required to raise the temperature of the absorption liquid to boiling temperature) decreases, and more of the heat from the combustion exhaust gas and hot water separates the refrigerant from the absorption liquid. It will be consumed (hereinafter referred to as latent heat consumption of the absorption liquid) to [concentrate the absorption liquid]. Therefore, in this machine, refrigerant vapor can be generated well to concentrate the absorption liquid, and a decrease in operating efficiency can be prevented. Moreover, it is also possible to make the degree of concentration, that is, the concentration, of the absorption liquid in the low-temperature heat source generator (3) the same as before the power of the engine (4I) was weakened. In this way, by keeping the concentration of the absorption 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, the temperature of the absorption liquid in the low-temperature heat source generator (3) can be maintained within a substantially constant range, so the temperature of the hot water flowing out from this generator (in other words, the hot water returning to the jacket of the engine +41) can be maintained at approximately a predetermined temperature. can be maintained within the range of

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。Therefore, the engine (41) will 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
吸収液の送り葉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程度にすることが可
能となる。七の結果、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（４
υの過熱を防止することかできる。Conversely, when the power of the engine (41) is increased, the amount of absorption liquid sent to the high temperature generator (1) and low temperature heat source generator (3) is controlled to increase.
It becomes possible to adjust the amount of sensible heat consumption of the absorption liquid to a combustion level in accordance with the increase in the enthalpy of the combustion exhaust gas and hot water. As a result of step 7, the temperature of the absorbent liquid in the low temperature heat source generator (3) can be maintained within a predetermined range, preventing an excessive temperature rise of the hot water flowing out from this generator and increasing the temperature of the engine (4).
It is possible to prevent overheating of υ.

また、本機においては、第１溶液ポンプα２の吐出量と
第２溶液ポンプ（１３１の吐出量〔あるいは流量制御弁
（■１）の開度と流量制御弁（■２）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
ョンなども防止できる。In addition, in this machine, the discharge amount of the first solution pump α2 and the discharge amount of the second solution pump (131 [or the opening degree of the flow control valve (■1) and the opening degree of the flow control valve (■2)]) Since they are adjusted at the same time, the absorber (8) is connected to the low temperature heat source generator (
3) and the amount of absorption liquid sent from the low-temperature heat source generator (3) to the high-temperature generator (1) can be made almost the same, and the absorption liquid can It is possible to prevent the solution from being unevenly distributed in any of the areas, and cavitation of the solution pump can also be prevented.

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、俗液ポンプαカ、（１３１や流量制御弁（
ｖｌ）、（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。In other words, the circulation of the absorption liquid can be continued favorably. In addition, common liquid pump α (131 and flow control valve (
The degree of control of (vl) and (V2) is selected depending on 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。Furthermore, since the physical quantities that change under the influence of changes in the power of the engine (41) include the concentration of the absorbing liquid and the temperature of the refrigerant vapor, the detector used in this device is not limited to the one shown in the figure.

（ト）発明の効果 以上のとおり、本発明によれば、エンジン側の動力が弱
められた場合にこの種め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) Effects of the Invention As described above, the present invention has the effect of reducing the reduction in operating efficiency of this type of absorption chiller when the power on the engine side is weakened, and In response to fluctuations in power, the temperature fluctuations of the hot water flowing out from the low-temperature heat source generator of this type of absorption refrigerator, that is, the hot water returning to the engine jacket, are reduced, and the effect of preventing the engine from becoming too cold or overheating is brought about.

【図面の簡単な説明】[Brief explanation of the drawing]

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
）、α■・・・溶液熱交換器、　α訳α４・・・第１、
第２溶液ポンプ、　Ｃ９、■、Ｃυ・・・管、　１２４
１．（ハ）、■・・・管、（至）・・・加熱管、　３１
）・・・給熱器、　３３・・・加熱器、α（、（２）・
・・冷却器、　（ト）・・・冷水器、　０１）・・・エ
ンジン、（４３・・・ダクト、　（４４）、　（４５１
・・・管、（４０・・・排ガス用ダクト、　　（Ｃυ、
（Ｃ７）・・・第１、第２制御器、（ＳｔＩ）、（Ｓｐ
＋　）、（Ｓ、）、（Ｓｔｔ）、（ＳＰ２）、（Ｓ２）
・・・検出器、（■１）、（Ｖ２）・・・流量制御弁。The drawing is a schematic structural diagram showing an embodiment of this type of absorption refrigerator 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)...Evaporator absorber, (7)...Evaporator, ( 8)...Absorber, (9
), α ■... Solution heat exchanger, α translation α4... 1st,
Second solution pump, C9, ■, Cυ... tube, 124
1. (c),■...tube, (to)...heating tube, 31
)...heater, 33...heater, α(,(2)・
...Cooler, (g)...Water cooler, 01)...Engine, (43...Duct, (44), (451)
...pipe, (40...exhaust gas duct, (Cυ,
(C7)...first and second controllers, (StI), (Sp
+ ), (S, ), (Stt), (SP2), (S2)
...Detector, (■1), (V2)...Flow control valve.

Claims (1)

【特許請求の範囲】[Claims] （１）エンジンのジャケットを循環する温水を熱源とす
る低温熱源発生器、エンジンの排ガスを熱源とする高温
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成る一
重二重効用吸収冷凍機において、低温熱源発生器内の液
温や蒸気圧など低温熱源発生器に関連する物理量を検知
しつつ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、高温発生器内の液温や蒸気圧など高
温発生器に関連する物理量を検知しつつ低温熱源発生器
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 whose heat source is hot water circulating through the engine jacket, a high-temperature generator whose heat source is engine exhaust gas, and a low-temperature generator whose heat source is the refrigerant separated from the absorption liquid in this high-temperature generator. Piping a first solution pump that sends the absorption liquid from the condenser, evaporator, absorber, solution heat exchanger, and absorber to the low temperature heat source generator, and a second solution pump that sends the absorption liquid from the low temperature heat source generator to the high temperature generator. In a single-double effect absorption chiller that is connected to a low-temperature heat source generator, the flow rate of the absorption liquid from the absorber to the low-temperature heat source generator is controlled while detecting physical quantities related to the low-temperature heat source generator, such as liquid temperature and vapor pressure inside the low-temperature heat source generator. and a control device that adjusts the flow rate of absorption liquid from the low-temperature heat source generator to the high-temperature generator while detecting physical quantities related to the high-temperature generator, such as liquid temperature and vapor pressure in the high-temperature generator. A single/double effect absorption refrigerator.