JP4187563B2 - Ammonia absorption refrigerator - Google Patents

Ammonia absorption refrigerator Download PDF

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Publication number
JP4187563B2
JP4187563B2 JP2003091094A JP2003091094A JP4187563B2 JP 4187563 B2 JP4187563 B2 JP 4187563B2 JP 2003091094 A JP2003091094 A JP 2003091094A JP 2003091094 A JP2003091094 A JP 2003091094A JP 4187563 B2 JP4187563 B2 JP 4187563B2
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Prior art keywords
ammonia
regenerator
absorber
water mixed
mixed medium
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JP2004301345A (en
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洋 藤本
利雄 西田
幸男 平中
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Osaka Gas Co Ltd
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Osaka Gas Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62—Absorption based systems

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Description

【０００１】
【発明の属する技術分野】
本発明は、吸収冷凍機の蒸発器で蒸発されたアンモニア蒸気を圧縮機で吸収器に供給するように構成したアンモニア吸収冷凍機に関する。
【０００２】
【従来の技術】
この種のアンモニア吸収冷凍機としては、従来、特許文献１に開示されているものがあった。
この従来例によれば、圧縮機を駆動するタービンの作動媒体として、吸収器からのアンモニア−水系混合媒体の溶液を用い、そのアンモニア−水系混合媒体の溶液の供給ラインの途中箇所に排ガスボイラを介装し、アンモニア−水系混合媒体の溶液をガスエンジン排ガスにより蒸発させるように構成している。
【０００３】
タービンおよび圧縮機から排出されるアンモニア−水系混合媒体のガスを吸収器に供給し、その途中において、熱交換器により、吸収器から再生器に供給されるアンモニア−水系混合媒体の溶液と熱交換し、タービンおよび圧縮機から排出されるアンモニア−水系混合媒体のガスの熱を回収して排熱回収効率を高め、蒸発器から冷熱を取り出す上での成績係数を高くできるように構成している。
【０００４】
【特許文献１】
特開２００２−４８４２６号公報（図１）
【０００５】
【発明が解決しようとする課題】
しかしながら、タービンに供給される吸収器からのアンモニア−水系混合媒体の溶液は、アンモニアガスを吸収した溶液であるため、アンモニア濃度が高く、タービンから排出されるガスのアンモニア濃度も高い。
【０００６】
このようなアンモニア濃度の高いガスの凝縮温度は低く、吸収器から再生器に供給されるアンモニア−水系混合媒体の溶液との熱交換によって凝縮されるガス量が少なくなり、アンモニア−水系混合媒体の溶液に回収される熱はほとんどが顕熱での回収となり、熱回収量が少なくなり、蒸発器から冷熱を取り出す上での成績係数を高くする点で改善の余地があった。
【０００７】
本発明は、このような事情に鑑みてなされたものであって、タービンに供給する作動媒体に改良を加え、蒸発器から冷熱を取り出す上での成績係数を高くできるようにすることを目的とする。
【０００８】
【課題を解決するための手段】
本発明は、上述のような目的を達成するために、
アンモニアを冷媒、水を吸収剤とするアンモニア−水系混合媒体を収容するとともにエンジン冷却水の加熱により冷媒を蒸発分離する再生器と、
前記再生器に接続されて前記再生器で蒸発分離させた冷媒を導入して凝縮液化する凝縮器と、
前記再生器に接続されて前記再生器から供給される冷媒蒸発後の吸収剤に冷媒を吸収して前記再生器に戻す吸収器と、
前記凝縮器および前記吸収器に接続されて前記凝縮器からの冷媒液を蒸発する蒸発器と、
前記蒸発器に付設されて前記蒸発器で得られる冷熱を取出す冷熱取り出し手段と、
前記蒸発器内の冷媒を吸引して前記吸収器に加圧供給する圧縮機と、
前記圧縮機に連動連結されるタービンと、
前記タービンに供給するアンモニア−水系混合媒体をガスエンジン排ガスにより蒸発させる排ガスボイラとを備えたアンモニア吸収冷凍機において、
前記再生器から前記吸収器にアンモニア−水系混合媒体の溶液を戻す戻し管と前記排ガスボイラとを接続する配管と、
前記タービンから排出されるアンモニア−水系混合媒体のガスの熱を前記吸収器から前記再生器に供給されるアンモニア−水系混合媒体の溶液に回収する熱交換器を備えて構成する。
【０００９】
（作用・効果）
本発明のアンモニア吸収冷凍機の構成によれば、タービンの作動媒体として、再生器から吸収器に戻すアンモニア−水系混合媒体を用いるように、アンモニア−水系混合媒体の溶液を戻す戻し管と排ガスボイラとを接続する。
したがって、再生器から吸収器に戻すアンモニア濃度の低いアンモニア−水系混合媒体をタービンの作動媒体に用いるから、タービンから排出されるアンモニア−水系混合媒体のガスにおけるアンモニア濃度を低くできる。このため、そのアンモニア−水系混合媒体のガスの凝縮温度を高くでき、吸収器から再生器に供給されるアンモニア−水系混合媒体の溶液に熱交換によって熱を回収させる際に、凝縮されるガス量を増加でき、アンモニア−水系混合媒体の溶液に凝縮潜熱として回収することができ、熱回収量を大幅に増加できて、蒸発器から冷熱を取り出す上での成績係数を高くできる。
【００１０】
【発明の実施の形態】
次に、本発明の実施例を図面に基づいて詳細に説明する。
図１は、本発明に係るアンモニア吸収冷凍機の実施例を示す概略構成図であり、ガスエンジンのエンジン冷却部の出口と入口とにわたってエンジン冷却水（ジャケット冷却水）を循環する循環配管１が、吸収冷凍機を構成する再生器２に接続されている。再生器２には、ガスエンジンからのエンジン冷却後のエンジン冷却水（温度85〜95℃）によって蒸発可能なアンモニアを冷媒とし、かつ、水を吸収剤としたアンモニア−水系混合媒体が収容されている。
【００１１】
再生器２には、水を分離したアンモニア蒸気を供給するように凝縮器３が連通接続され、再生器２に戻し管４を介して吸収器５が接続されるとともに、凝縮器３に第１の配管６を介して蒸発器７が接続され、更に、吸収器５と蒸発器７とが第２の配管８（後述する第４の配管１７をも一部含む）を介して連通接続され、アンモニア吸収冷凍機が構成されている。
【００１２】
凝縮器３では、再生器２で蒸発した冷媒を凝縮液化し、その液化した冷媒を蒸発器７に戻すようになっている。
蒸発器７では、吸収器５における吸収剤による冷媒の吸収に伴い、冷媒が蒸発するようになっている。
【００１３】
吸収器５から再生器２にわたって、第１の溶液ポンプ９を介装した第３の配管１０が接続されている。この第３の配管１０と戻し管４との間に第１の熱交換器１１が設けられ、再生器２に戻す液化したアンモニア−水系混合媒体の溶液を、再生器２から吸収器５に流すアンモニア−水系混合媒体の溶液によって加熱するようになっている。
【００１４】
戻し管４の第１の熱交換器１１と吸収器５との間に、第２の溶液ポンプ１２を介装した分岐配管１３が接続され、この分岐配管１３と、ガスエンジンからの排ガスを流すガス配管１４とにわたって排ガスボイラ１５が設けられている。これにより、再生器２から吸収器５に戻すアンモニア濃度の低い液化したアンモニア−水系混合媒体の溶液の一部をガスエンジンからの排気ガスからの伝熱により加熱し、高温高圧の蒸気を発生させるように構成されている。
【００１５】
分岐配管１３にタービン１６が接続されるとともに、そのタービン１６と吸収器５とが第４の配管１７を介して接続され、吸収冷凍機の作動媒体であるアンモニア−水系混合媒体の高温高圧の蒸気によってタービン１６を駆動するとともに、タービン１６から排出される蒸気を吸収器５に戻すように構成されている。
【００１６】
タービン１６に伝動軸１８を介して圧縮機１９が連動連結されるとともに、この圧縮機１９が第２の配管８に設けられている。第１の配管６の途中箇所に第２の熱交換器２０と第３の熱交換器２１とが設けられ、この第２および第３の熱交換器２０，２１で熱交換可能に、吸収器１２と圧縮機１９とを接続する第２の配管８が設けられ、圧縮機１９によって蒸発器７内の蒸気を吸引して吸収器５に加圧供給するとともに、凝縮器３から蒸発器７に供給されるアンモニア−水系混合媒体の溶液を冷却するようになっている。
【００１７】
タービン１６および圧縮機１９からのアンモニア−水系混合媒体のガスを吸収器５に供給する第４の配管１７と第３の配管１０とにわたって第４の熱交換器２２が設けられ、タービン１６および圧縮機１９から排出されて吸収器５に供給するアンモニア−水系混合媒体のガスの熱を、吸収器５から再生器２に供給されるアンモニア−水系混合媒体の溶液に回収させるように構成されている。
【００１８】
蒸発器７に、冷熱取り出し手段としての、冷凍用媒体（例えば、ブライン）を取り出す冷凍用媒体取り出し管２３が付設され、この冷凍用媒体取り出し管２３が保冷庫や空調用ファンコイルユニットなどの冷却用熱源（図示せず）に導入されるようになっている。
【００１９】
凝縮器３と再生器２とが、第３の溶液ポンプ２４を介装した第５の配管２５を介して接続され、再生器２の上部で整流作用を行えるようになっている。
凝縮器３および吸収器５には、クーリングタワーからの冷却水を供給する冷却管２４が通されている。
【００２０】
上記構成により、タービン１６の作動媒体として、再生器２から吸収器５に戻すアンモニア濃度の低いアンモニア−水系混合媒体の溶液を用い、タービン１６から排出されるアンモニア−水系混合媒体のガスにおけるアンモニア濃度を低くし、そのアンモニア−水系混合媒体のガスの凝縮温度を高くして、吸収器５から再生器２に供給されるアンモニア−水系混合媒体の溶液との熱交換によって凝縮されるガス量を増加し、アンモニア−水系混合媒体の溶液に凝縮潜熱として回収し、熱回収量を大幅に増加できる。
【００２１】
次に、上記実施例と従来例との成績係数についての比較実験結果について説明する。
ガスエンジンからの排ガスによる入熱量とエンジン冷却水による入熱量との合計に対する、冷凍用媒体取り出し管２３から取り出される取り出し熱量による成績係数を、所定の冷凍用媒体の取り出し温度ごと（４℃間隔）に求めてプロットしたところ、図２の冷熱の取り出し温度と成績係数との相関のグラフに示す結果が得られた。
上記結果から、−２０℃に近い温度まで、本発明例のものＡの方が、従来例のものＢよりも高い成績係数を得ることができ、かつ、取り出し温度が高くなる程高い成績係数を得ることができることが明らかであった。
【００２２】
上述実施例の排ガスやエンジン冷却水の排出熱源としてのガスエンジンとしては、汎用のガスエンジンやディーゼルガスエンジンやスターリングガスエンジンなど各種のガスエンジンを用いることができる。
【００２３】
【発明の効果】
以上説明したように、本発明のアンモニア吸収冷凍機によれば、再生器から吸収器に戻すアンモニア濃度の低いアンモニア−水系混合媒体をタービンの作動媒体に用いるから、タービンから排出されるアンモニア−水系混合媒体のガスにおけるアンモニア濃度を低くできる。このため、そのアンモニア−水系混合媒体のガスの凝縮温度を高くでき、吸収器から再生器に供給されるアンモニア−水系混合媒体の溶液に熱交換によって熱を回収させる際に、凝縮されるガス量を増加でき、アンモニア−水系混合媒体の溶液に凝縮潜熱として回収することができ、熱回収量を大幅に増加できて、蒸発器から冷熱を取り出す上での成績係数を高くできる。
【図面の簡単な説明】
【図１】本発明に係るアンモニア吸収冷凍機の実施例を示す概略構成図である。
【図２】冷熱の取り出し温度と成績係数との相関のグラフである。
【符号の説明】
２…再生器
３…凝縮器
４…戻し管
５…吸収器
７…蒸発器
１３…分岐配管（配管）
１５…排ガスボイラ
１６…タービン
１９…圧縮機
２２…第４の熱交換器（熱交換器）
２３…冷凍用媒体取り出し管（冷熱取り出し手段）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ammonia absorption refrigerator configured to supply ammonia vapor evaporated by an evaporator of an absorption refrigerator to the absorber using a compressor.
[0002]
[Prior art]
Conventionally, this type of ammonia absorption refrigerator has been disclosed in Patent Document 1.
According to this conventional example, an ammonia-water mixed medium solution from an absorber is used as a working medium of a turbine that drives a compressor, and an exhaust gas boiler is provided at a midpoint of the ammonia-water mixed medium solution supply line. It is configured so that the ammonia-water mixed medium solution is evaporated by the gas engine exhaust gas.
[0003]
The gas of the ammonia-water mixed medium discharged from the turbine and the compressor is supplied to the absorber, and in the middle of the heat exchange with the solution of the ammonia-water mixed medium supplied from the absorber to the regenerator by the heat exchanger. In addition, the heat of the ammonia-water mixed medium gas discharged from the turbine and the compressor is recovered to improve the exhaust heat recovery efficiency, and the coefficient of performance for extracting the cold heat from the evaporator can be increased. .
[0004]
[Patent Document 1]
Japanese Patent Laying-Open No. 2002-48426 (FIG. 1)
[0005]
[Problems to be solved by the invention]
However, since the ammonia-water mixed medium solution from the absorber supplied to the turbine is a solution that has absorbed ammonia gas, the ammonia concentration is high and the ammonia concentration of the gas discharged from the turbine is also high.
[0006]
The condensation temperature of such a high ammonia concentration gas is low, the amount of gas condensed by heat exchange with the solution of the ammonia-water mixed medium supplied from the absorber to the regenerator is reduced, and the ammonia-water mixed medium Most of the heat recovered in the solution was recovered by sensible heat, the amount of heat recovered was small, and there was room for improvement in terms of increasing the coefficient of performance for extracting cold heat from the evaporator.
[0007]
This invention is made in view of such a situation, Comprising: It aims at making it possible to improve the coefficient of performance in taking out cold heat from an evaporator by improving the working medium supplied to a turbine. To do.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides
A regenerator that contains an ammonia-water mixed medium containing ammonia as a refrigerant and water as an absorbent and evaporates and separates the refrigerant by heating engine cooling water;
A condenser connected to the regenerator to introduce a refrigerant evaporated and separated by the regenerator to condense and liquefy;
An absorber that is connected to the regenerator and absorbs the refrigerant in the absorbent after evaporation of the refrigerant supplied from the regenerator and returns it to the regenerator;
An evaporator connected to the condenser and the absorber to evaporate a refrigerant liquid from the condenser;
A cold heat extracting means attached to the evaporator to extract the cold heat obtained by the evaporator;
A compressor that sucks the refrigerant in the evaporator and pressurizes and supplies it to the absorber;
A turbine coupled to the compressor;
In an ammonia absorption refrigerator having an exhaust gas boiler for evaporating an ammonia-water mixed medium supplied to the turbine by gas engine exhaust gas,
A pipe connecting the return pipe for returning the solution of the ammonia-water mixed medium from the regenerator to the absorber and the exhaust gas boiler;
A heat exchanger is provided that recovers the heat of the ammonia-water mixed medium gas discharged from the turbine into a solution of the ammonia-water mixed medium supplied from the absorber to the regenerator.
[0009]
(Action / Effect)
According to the configuration of the ammonia absorption refrigerator of the present invention, the return pipe and the exhaust gas boiler for returning the solution of the ammonia-water mixed medium so that the ammonia-water mixed medium returned from the regenerator to the absorber is used as the turbine working medium. And connect.
Therefore, since the ammonia-water mixed medium having a low ammonia concentration returned from the regenerator to the absorber is used as the turbine working medium, the ammonia concentration in the gas of the ammonia-water mixed medium discharged from the turbine can be lowered. For this reason, the condensation temperature of the gas of the ammonia-water mixed medium can be increased, and the amount of gas condensed when the heat of the ammonia-water mixed medium solution supplied from the absorber to the regenerator is recovered by heat exchange. Can be recovered as a latent heat of condensation in the ammonia-water mixed medium solution, the amount of heat recovery can be greatly increased, and the coefficient of performance for taking out the cold heat from the evaporator can be increased.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic configuration diagram showing an embodiment of an ammonia absorption refrigerator according to the present invention, in which a circulation pipe 1 for circulating engine cooling water (jacket cooling water) is provided between an outlet and an inlet of an engine cooling unit of a gas engine. The regenerator 2 constituting the absorption refrigerator is connected. The regenerator 2 contains an ammonia-water mixed medium in which ammonia that can be evaporated by engine cooling water (temperature 85 to 95 ° C.) after cooling from the gas engine is used as a refrigerant and water is used as an absorbent. Yes.
[0011]
A condenser 3 is connected to the regenerator 2 so as to supply ammonia vapor from which water has been separated, and an absorber 5 is connected to the regenerator 2 via a return pipe 4. The evaporator 7 is connected via the pipe 6, and the absorber 5 and the evaporator 7 are connected in communication via the second pipe 8 (including a part of the fourth pipe 17 described later), An ammonia absorption refrigerator is configured.
[0012]
In the condenser 3, the refrigerant evaporated in the regenerator 2 is condensed and liquefied, and the liquefied refrigerant is returned to the evaporator 7.
In the evaporator 7, the refrigerant evaporates as the refrigerant is absorbed by the absorbent in the absorber 5.
[0013]
A third pipe 10 including a first solution pump 9 is connected from the absorber 5 to the regenerator 2. A first heat exchanger 11 is provided between the third pipe 10 and the return pipe 4, and the liquefied ammonia-water mixed medium solution returned to the regenerator 2 is caused to flow from the regenerator 2 to the absorber 5. Heating is performed by a solution of an ammonia-water mixed medium.
[0014]
A branch pipe 13 having a second solution pump 12 interposed is connected between the first heat exchanger 11 and the absorber 5 of the return pipe 4, and this branch pipe 13 and the exhaust gas from the gas engine flow. An exhaust gas boiler 15 is provided across the gas pipe 14. Thereby, a part of the solution of the liquefied ammonia-water mixed medium having a low ammonia concentration returned from the regenerator 2 to the absorber 5 is heated by heat transfer from the exhaust gas from the gas engine to generate high-temperature and high-pressure steam. It is configured as follows.
[0015]
A turbine 16 is connected to the branch pipe 13, and the turbine 16 and the absorber 5 are connected via a fourth pipe 17, and high-temperature and high-pressure steam of an ammonia-water mixed medium that is a working medium of the absorption refrigerator. Is configured to drive the turbine 16 and return the steam discharged from the turbine 16 to the absorber 5.
[0016]
A compressor 19 is linked to the turbine 16 via a transmission shaft 18, and the compressor 19 is provided in the second pipe 8. A second heat exchanger 20 and a third heat exchanger 21 are provided in the middle of the first pipe 6, and the second and third heat exchangers 20 and 21 can exchange heat with each other. A second pipe 8 is provided to connect the compressor 12 and the compressor 19, and the vapor in the evaporator 7 is sucked by the compressor 19 and supplied to the absorber 5 under pressure, and from the condenser 3 to the evaporator 7. The supplied ammonia-water mixed medium solution is cooled.
[0017]
A fourth heat exchanger 22 is provided across the fourth pipe 17 and the third pipe 10 for supplying the gas of the ammonia-water mixed medium from the turbine 16 and the compressor 19 to the absorber 5. The heat of the ammonia-water mixed medium gas discharged from the machine 19 and supplied to the absorber 5 is recovered in the ammonia-water mixed medium solution supplied from the absorber 5 to the regenerator 2. .
[0018]
The evaporator 7 is provided with a refrigeration medium take-out pipe 23 for taking out a refrigeration medium (for example, brine) as a cold heat take-out means, and this refrigeration medium take-out pipe 23 is used for cooling a cold storage, an air conditioning fan coil unit, or the like. It is introduced into a heat source (not shown).
[0019]
The condenser 3 and the regenerator 2 are connected via a fifth pipe 25 having a third solution pump 24 interposed therebetween, so that the rectifying action can be performed at the upper part of the regenerator 2.
A cooling pipe 24 that supplies cooling water from the cooling tower is passed through the condenser 3 and the absorber 5.
[0020]
With the above configuration, the ammonia concentration in the gas of the ammonia-water mixed medium discharged from the turbine 16 is obtained by using the ammonia-water mixed medium solution having a low ammonia concentration returned from the regenerator 2 to the absorber 5 as the working medium of the turbine 16. And the condensation temperature of the ammonia-water mixed medium gas is increased, and the amount of gas condensed by heat exchange with the ammonia-water mixed medium solution supplied from the absorber 5 to the regenerator 2 is increased. In addition, it is recovered as a latent heat of condensation in the ammonia-water mixed medium solution, and the amount of heat recovery can be greatly increased.
[0021]
Next, the results of a comparative experiment on the coefficient of performance between the above example and the conventional example will be described.
The coefficient of performance by the amount of heat taken out from the freezing medium take-out pipe 23 with respect to the total amount of heat input by the exhaust gas from the gas engine and the amount of heat inputted by the engine cooling water is determined for each predetermined freezing medium take-out temperature (at intervals of 4 ° C.). As a result, the results shown in the graph of the correlation between the cold heat extraction temperature and the coefficient of performance in FIG. 2 were obtained.
From the above results, up to a temperature close to −20 ° C., the example A of the present invention can obtain a higher coefficient of performance than the example B of the conventional example, and the coefficient of performance increases as the take-out temperature increases. It was clear that it could be obtained.
[0022]
Various gas engines, such as a general-purpose gas engine, a diesel gas engine, and a Stirling gas engine, can be used as a gas engine as an exhaust heat source of exhaust gas and engine cooling water in the above-described embodiments.
[0023]
【The invention's effect】
As described above, according to the ammonia absorption refrigerator of the present invention, the ammonia-water mixed medium having a low ammonia concentration returned from the regenerator to the absorber is used as the turbine working medium. Therefore, the ammonia-water system discharged from the turbine is used. The ammonia concentration in the gas of the mixed medium can be lowered. For this reason, the condensation temperature of the gas of the ammonia-water mixed medium can be increased, and the amount of gas condensed when the heat of the ammonia-water mixed medium solution supplied from the absorber to the regenerator is recovered by heat exchange. Can be recovered as a latent heat of condensation in the ammonia-water mixed medium solution, the amount of heat recovery can be greatly increased, and the coefficient of performance for taking out the cold heat from the evaporator can be increased.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing an embodiment of an ammonia absorption refrigerator according to the present invention.
FIG. 2 is a graph showing a correlation between a cold heat extraction temperature and a coefficient of performance.
[Explanation of symbols]
2 ... regenerator 3 ... condenser 4 ... return pipe 5 ... absorber 7 ... evaporator 13 ... branch pipe (pipe)
15 ... Exhaust gas boiler 16 ... Turbine 19 ... Compressor 22 ... Fourth heat exchanger (heat exchanger)
23 ... Freezing medium take-out pipe (cold heat take-out means)

Claims (1)

アンモニアを冷媒、水を吸収剤とするアンモニア−水系混合媒体を収容するとともにエンジン冷却水の加熱により冷媒を蒸発分離する再生器と、
前記再生器に接続されて前記再生器で蒸発分離させた冷媒を導入して凝縮液化する凝縮器と、
前記再生器に接続されて前記再生器から供給される冷媒蒸発後の吸収剤に冷媒を吸収して前記再生器に戻す吸収器と、
前記凝縮器および前記吸収器に接続されて前記凝縮器からの冷媒液を蒸発する蒸発器と、
前記蒸発器に付設されて前記蒸発器で得られる冷熱を取出す冷熱取り出し手段と、
前記蒸発器内の冷媒を吸引して前記吸収器に加圧供給する圧縮機と、
前記圧縮機に連動連結されるタービンと、
前記タービンに供給するアンモニア−水系混合媒体をガスエンジン排ガスにより蒸発させる排ガスボイラとを備えたアンモニア吸収冷凍機において、
前記再生器から前記吸収器にアンモニア−水系混合媒体の溶液を戻す戻し管と前記排ガスボイラとを接続する配管と、
前記タービンから排出されるアンモニア−水系混合媒体のガスの熱を前記吸収器から前記再生器に供給されるアンモニア−水系混合媒体の溶液に回収する熱交換器を備えたことを特徴とするアンモニア吸収冷凍機。A regenerator that contains an ammonia-water mixed medium containing ammonia as a refrigerant and water as an absorbent and evaporates and separates the refrigerant by heating engine cooling water;
A condenser connected to the regenerator to introduce a refrigerant evaporated and separated by the regenerator to condense and liquefy;
An absorber that is connected to the regenerator and absorbs the refrigerant in the absorbent after evaporation of the refrigerant supplied from the regenerator and returns it to the regenerator;
An evaporator connected to the condenser and the absorber to evaporate a refrigerant liquid from the condenser;
A cold heat extracting means attached to the evaporator to extract the cold heat obtained by the evaporator;
A compressor that sucks the refrigerant in the evaporator and pressurizes and supplies it to the absorber;
A turbine coupled to the compressor;
In an ammonia absorption refrigerator having an exhaust gas boiler for evaporating an ammonia-water mixed medium supplied to the turbine by gas engine exhaust gas,
A pipe connecting the return pipe for returning the solution of the ammonia-water mixed medium from the regenerator to the absorber and the exhaust gas boiler;
Ammonia absorption comprising a heat exchanger for recovering the heat of the ammonia-water mixed medium gas discharged from the turbine into an ammonia-water mixed medium solution supplied from the absorber to the regenerator. refrigerator.
JP2003091094A 2003-03-28 2003-03-28 Ammonia absorption refrigerator Expired - Fee Related JP4187563B2 (en)

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CN104006573A (en) * 2014-05-12 2014-08-27 中国五环工程有限公司 Combined ammonia compression refrigeration technology and system
CN104006570A (en) * 2014-06-05 2014-08-27 中国科学院工程热物理研究所 Direct and reverse cycle coupling based absorption and compression combined type refrigerating system and method

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CN103528264B (en) * 2012-07-03 2015-06-24 中国科学院工程热物理研究所 Combined type refrigeration system and method based on coupling between direct cycle and reverse cycle
CN103161528B (en) * 2013-03-07 2014-12-03 中国科学院工程热物理研究所 Work and coldness co-production system and method of recovering working medium effective ingredient refrigeration
CN107238228B (en) * 2017-06-09 2019-12-13 东南大学 refrigerating cycle system combining ammonia water absorption and injection and operation method

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Publication number Priority date Publication date Assignee Title
CN104006573A (en) * 2014-05-12 2014-08-27 中国五环工程有限公司 Combined ammonia compression refrigeration technology and system
CN104006573B (en) * 2014-05-12 2016-03-02 中国五环工程有限公司 Combined type ammonia compression refrigeration technique and system
CN104006570A (en) * 2014-06-05 2014-08-27 中国科学院工程热物理研究所 Direct and reverse cycle coupling based absorption and compression combined type refrigerating system and method
CN104006570B (en) * 2014-06-05 2016-10-19 中国科学院工程热物理研究所 Absorption based on forward and reverse cycle coupling-compression combined formula refrigeration system and method

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