JPH08296917A - Absorption refrigerating machine - Google Patents
Absorption refrigerating machineInfo
- Publication number
- JPH08296917A JPH08296917A JP7124579A JP12457995A JPH08296917A JP H08296917 A JPH08296917 A JP H08296917A JP 7124579 A JP7124579 A JP 7124579A JP 12457995 A JP12457995 A JP 12457995A JP H08296917 A JPH08296917 A JP H08296917A
- Authority
- JP
- Japan
- Prior art keywords
- absorber
- temperature generator
- evaporator
- liquid
- low 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.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、吸収式冷凍機に関する
ものであり、特に詳しくは２種類の作動媒体系からなる
熱効率の高い吸収式冷凍機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorption refrigerating machine, and more particularly to an absorption refrigerating machine having two types of working medium systems and having high thermal efficiency.
【０００２】[0002]
【従来の技術】従来、この種の吸収式冷凍機としては、
例えば図２に示した構成の装置が知られている。2. Description of the Related Art Conventionally, as this type of absorption refrigerator,
For example, an apparatus having the configuration shown in FIG. 2 is known.
【０００３】図２において、１は高温発生器、２は低温
発生器３と精留塔４とを備えた低温発生器胴、５は蒸発
器６と吸収器７とからなる第１の蒸発器・吸収器胴、８
は蒸発器９と吸収器１０とからなる第２の蒸発器・吸収
器胴、１１は分縮器１２と凝縮器１３とからなる分縮器
・凝縮器胴、１４・１５・１６・１７・１８はポンプ、
２１・２２・２３は熱交換器であり、吸収液配管３１・
３２・３３・３４と冷媒配管４１・４２・４３・４４・
４５とを介して配管接続され、高温発生器１と低温発生
器３と第１の蒸発器・吸収器胴５とによる、例えば水を
冷媒、臭化リチウム水溶液を吸収液とする第１の冷凍サ
イクルと、低温発生器胴２と分縮器・凝縮器胴１１と第
２の蒸発器・吸収器胴８とによる、例えばトリフルオロ
エタノールを冷媒、ｎ−メチルピロリドンを吸収液とす
る第２の冷凍サイクルとを構成し、蒸発器６・９の内部
を経由して配管した冷水配管５１により図示しない室内
機などに、冷水を循環供給して冷房運転ができるように
構成されている。In FIG. 2, 1 is a high temperature generator, 2 is a low temperature generator cylinder having a low temperature generator 3 and a rectification column 4, and 5 is a first evaporator comprising an evaporator 6 and an absorber 7.・ Absorber cylinder, 8
Is a second evaporator / absorber cylinder composed of an evaporator 9 and an absorber 10, 11 is a partial condenser / condenser cylinder composed of a partial condenser 12 and a condenser 13, and 14 ・ 15 ・ 16 ・ 17 ・18 is a pump,
21, 22 and 23 are heat exchangers, and the absorption liquid pipe 31.
32, 33, 34 and refrigerant pipes 41, 42, 43, 44
First refrigeration, which is connected by piping through 45, and which uses the high-temperature generator 1, the low-temperature generator 3, and the first evaporator / absorber barrel 5, for example, water as a refrigerant and lithium bromide aqueous solution as an absorption liquid. The second cycle of the cycle and the low-temperature generator cylinder 2, the dephlegmator / condenser cylinder 11 and the second evaporator / absorber cylinder 8 uses, for example, trifluoroethanol as a refrigerant and n-methylpyrrolidone as an absorption liquid. A refrigerating cycle is configured, and cold water is circulated and supplied to an indoor unit (not shown) or the like by a cold water pipe 51 that is routed through the inside of the evaporators 6 and 9 so that cooling operation can be performed.
【０００４】なお、５２は高温高圧の水蒸気を高温発生
器１に供給する熱源配管、５３は吸収器７・１０の内部
と分縮器・凝縮器胴１１の内部を順次経由するように設
けられた冷却水配管である。Reference numeral 52 is a heat source pipe for supplying high-temperature and high-pressure steam to the high-temperature generator 1, and 53 is provided so as to sequentially pass through the inside of the absorbers 7 and 10 and the inside of the dephlegmator / condenser barrel 11. It is a cooling water pipe.
【０００５】すなわち、図２に例示した吸収式冷凍機に
おける冷房運転では、吸収器７の稀液が熱交換器２１・
２２を経由して高温発生器１に流入し、高温発生器１で
熱源配管５２を流れる蒸気の加熱作用によって冷媒を蒸
発分離して濃縮された濃液が熱交換器２２を経由して吸
収器９に流入し、高温発生器１において発生分離した冷
媒蒸気が低温発生器３・熱交換器２１を経由して凝縮し
て蒸発器６に流入し、蒸発時の吸熱作用によって冷水配
管５１の内部を流れる水が冷却される。That is, in the cooling operation of the absorption refrigerating machine illustrated in FIG. 2, the dilute liquid of the absorber 7 becomes the heat exchanger 21.
The concentrated liquid, which has been concentrated by evaporating and separating the refrigerant by the heating action of the steam flowing through the heat source pipe 52 in the high temperature generator 1 via the heat exchanger 22, passes through the heat exchanger 22. 9, the refrigerant vapor generated and separated in the high temperature generator 1 is condensed via the low temperature generator 3 and the heat exchanger 21 and flows into the evaporator 6, and the inside of the cold water pipe 51 is absorbed by the endothermic action during evaporation. The water flowing through is cooled.
【０００６】また、吸収器１０の稀液が熱交換器２３を
経由して低温発生器胴２に流入し、低温発生器胴２で冷
媒を蒸発分離して濃縮された濃液が熱交換器２３を経由
して吸収器１０に流入し、低温発生器３において発生分
離した冷媒蒸気が精留塔４で精留された後、分縮器１２
に流入する。Further, the dilute liquid of the absorber 10 flows into the low temperature generator barrel 2 via the heat exchanger 23, and the concentrated liquid concentrated by evaporating and separating the refrigerant in the low temperature generator barrel 2 is the heat exchanger. After the refrigerant vapor flowing into the absorber 10 via 23 and generated and separated in the low temperature generator 3 is rectified in the rectification tower 4, the partial condenser 12
Flows into.
【０００７】分縮器１２で凝縮した液は冷媒配管４４を
通って精留塔４に戻り、分縮器１２では凝縮せず、凝縮
器１３に入って凝縮した液状冷媒が蒸発器９に流入し、
蒸発時の吸熱作用によって冷水配管５１の内部を流れる
水がさらに冷却され、図示しない室内機に循環供給され
て冷房作用を行う。The liquid condensed in the dephlegmator 12 returns to the rectification column 4 through the refrigerant pipe 44, and is not condensed in the dephlegmator 12 but enters the condenser 13 and the condensed liquid refrigerant flows into the evaporator 9. Then
The water that flows inside the cold water pipe 51 is further cooled by the endothermic action during evaporation, and is circulated and supplied to an indoor unit (not shown) to perform the cooling action.
【０００８】なお、熱源配管５２には、例えば電磁式の
開閉弁６１・６２が気液分離器５２ａと共に図のように
設置されていて、これらの開閉弁を開閉することによ
り、熱源である高温高圧の水蒸気の高温発生器１への供
給／停止を制御し、冷媒の発生分離が制御できるように
なっている。In the heat source pipe 52, for example, electromagnetic type on-off valves 61 and 62 are installed together with the gas-liquid separator 52a as shown in the figure, and by opening and closing these on-off valves, a high temperature which is a heat source. The supply / stop of high-pressure steam to the high-temperature generator 1 is controlled, and the generation / separation of the refrigerant can be controlled.
【０００９】また、吸収器７・１０で冷媒が吸収液に吸
収される際に発生する熱は、冷却水配管５３を流れる冷
却水によって図示しない室外機や冷却塔に運ばれ、外気
に放熱される。Further, the heat generated when the refrigerant is absorbed by the absorbing liquid in the absorbers 7 and 10 is carried by the cooling water flowing through the cooling water pipe 53 to an outdoor unit (not shown) or a cooling tower and radiated to the outside air. It
【００１０】上記構成の吸収式冷凍機の場合、冷水配管
５１から蒸発器６・９に河川水などを供給し、冷却水配
管５３を室内機に接続して暖房運転を行うことも可能で
あるが、河川水の温度が７℃程度と低い場合に、低温発
生器３でも冷媒を蒸発分離させようとすると、高温発生
器１の温度と圧力を極めて高く保つ必要がある。In the case of the absorption refrigerator having the above structure, it is also possible to supply river water or the like from the cold water pipe 51 to the evaporators 6 and 9 and connect the cooling water pipe 53 to the indoor unit for heating operation. However, when the temperature of the river water is as low as about 7 ° C. and the low temperature generator 3 tries to evaporate and separate the refrigerant, it is necessary to keep the temperature and pressure of the high temperature generator 1 extremely high.
【００１１】このため、例えば図３に示したように、蒸
発器９における冷媒の蒸発熱源として、低温の河川水な
どを冷水配管５１ａを介して蒸発器９に供給すると共
に、吸収器７と分縮器・凝縮器胴１１との内部を経由し
て冷却水配管５３ａを配管し、蒸発器６と吸収器１０と
をポンプ１９を備えた熱交換配管５５により熱的に関係
させ、吸収器１０の発熱を蒸発器６の入熱として運転す
るように構成した吸収式冷凍機が、暖房運転時の機内の
圧力上昇が抑制できるとして提案されている。Therefore, as shown in FIG. 3, for example, low-temperature river water or the like is supplied to the evaporator 9 via the cold water pipe 51a as an evaporation heat source of the refrigerant in the evaporator 9, and is separated from the absorber 7. A cooling water pipe 53a is piped through the inside of the compressor / condenser body 11, and the evaporator 6 and the absorber 10 are thermally related to each other by a heat exchange pipe 55 equipped with a pump 19. An absorption chiller configured to operate with the heat generation of 1 as the heat input to the evaporator 6 has been proposed as being capable of suppressing an increase in internal pressure during heating operation.
【００１２】[0012]
【発明が解決しようとする課題】しかし、図２に示した
構成の吸収式冷凍機においては、第１の冷凍サイクルに
おける蒸発器への入熱が低温熱源からの熱回収に利用で
きないだけでなく、第２の冷凍サイクルにおける吸収器
の冷却に用いられるので、第１の冷凍サイクルにおける
高温発生器からの冷媒蒸気を第２の冷凍サイクルにおけ
る低温発生器の加熱に用いる二重効用運転をしても、全
体のＣＯＰが低い値となると云った問題点があり、低温
熱源として使用する河川水などの温度が低い場合にＣＯ
Ｐを高めてヒートポンプ運転することのできる吸収式冷
凍機の提案が期待されていた。However, in the absorption refrigerator having the configuration shown in FIG. 2, not only the heat input to the evaporator in the first refrigeration cycle cannot be used for heat recovery from the low temperature heat source, but also , Because it is used to cool the absorber in the second refrigeration cycle, the refrigerant vapor from the high temperature generator in the first refrigeration cycle is used for heating the low temperature generator in the second refrigeration cycle to perform a double-effect operation. However, there is a problem that the overall COP becomes a low value, and when the temperature of river water used as a low temperature heat source is low, CO
The proposal of an absorption chiller capable of increasing the P and operating the heat pump was expected.
【００１３】[0013]
【課題を解決するための手段】本発明は上記従来技術の
課題を解決するためになされたもので、高温発生器と、
低温発生器と、第１の蒸発器と第１の吸収器とからなる
第１の蒸発器・吸収器胴とを配管接続して第１の冷凍サ
イクルを構成すると共に、前記低温発生器と、分縮器と
凝縮器とからなる分縮器・凝縮器胴と、第２の蒸発器と
第２の吸収器とからなる第２の蒸発器・吸収器胴とを配
管接続して第２の冷凍サイクルを構成する、２種類の作
動媒体系からなる吸収式冷凍機において、The present invention has been made to solve the above-mentioned problems of the prior art, and includes a high temperature generator and
A low-temperature generator and a first evaporator / absorber cylinder consisting of a first evaporator and a first absorber are connected by piping to form a first refrigeration cycle, and the low-temperature generator is provided. The second condenser is formed by connecting the condenser / condenser cylinder including the condenser and the condenser and the second evaporator / absorber cylinder including the second evaporator and the second absorber by pipe connection. In an absorption chiller consisting of two types of working medium system that constitutes a refrigeration cycle,
【００１４】前記低温発生器と連通して吸収液の加熱容
器を設けた第１の構成と、A first structure in which a heating container for absorbing liquid is provided in communication with the low temperature generator;
【００１５】前記第１の構成において、低温発生器また
は加熱容器の上方に精留塔が設けられると共に、第２の
吸収器から前記精留塔を備える側の機器・前記精留塔を
備えない側の機器の順に吸収液が循環可能に配管接続さ
れた第２の構成と、In the first construction, the rectification column is provided above the low temperature generator or the heating container, and the equipment on the side including the rectification column from the second absorber and the rectification column are not provided. A second configuration in which the absorbing liquid is circulated in a pipe arrangement in the order of the equipment on the side,
【００１６】前記第２の構成において、低温発生器と加
熱容器の気相部とが、精留塔の下方で連通するように構
成された第３の構成と、In the second configuration, the low temperature generator and the gas phase section of the heating vessel are connected to each other below the rectification column.
【００１７】前記第２の構成において、精留塔を備えな
い側の機器から第２の吸収器にポンプを備えた吸収液配
管によって吸収液が循環可能に配管接続されると共に、
前記精留塔を備える側の機器から前記精留塔を備えない
側の機器へは液面レベル差による圧力差によって吸収液
が循環可能に配管接続された第４の構成と、In the above-mentioned second construction, the absorbent is circulated so that it can be circulated from the equipment not equipped with the rectification column to the second absorber by means of an absorbent piping provided with a pump.
A fourth configuration in which the absorbing liquid is circulatoryly piped from the device on the side including the rectification column to the device on the side not including the rectification column by a pressure difference due to a liquid level difference,
【００１８】前記第４の構成において、精留塔を備えな
い側の機器内における吸収液の液面レベルを計測し、そ
の液面レベルが所定レベルより低下したとき、前記精留
塔を備えない側の機器と第２の吸収器とを配管接続する
吸収液配管に設けたポンプの運転を停止する保護装置を
有するように構成された第５の構成と、を提供するもの
である。In the fourth construction, the liquid level of the absorbing liquid in the equipment not equipped with the rectification column is measured, and when the liquid level falls below a predetermined level, the rectification column is not provided. A fifth configuration configured to have a protection device that stops the operation of a pump provided in the absorbent liquid pipe that connects the device on the side and the second absorber by pipe connection.
【００１９】[0019]
【作用】蒸発器における冷媒の蒸発熱源として河川水な
どを蒸発器に供給すると共に、吸収器と分縮器・凝縮器
胴との内部を経由して配管した冷却水配管を流れる温水
を室内機に循環供給して行う暖房運転時に、蒸発器に供
給する低温熱源の温度が７℃程度に低下し、高温発生器
で生成した冷媒蒸気を低温発生器に熱源として供給し、
低温発生器でも冷媒を蒸発させようとすると、高温発生
器の機内圧力が異常に高くなるが、低温発生器と連通す
る加熱容器を備えているので、第１の冷凍サイクルを停
止し、第２の冷凍サイクルのみの単効用運転を行ないな
がら、加熱容器で冷媒を加熱して蒸発分離することで、
機内を大気圧以下に保ってＣＯＰに優れた暖房運転が行
える。[Operation] While supplying river water etc. to the evaporator as a heat source for evaporating the refrigerant in the evaporator, the warm water flowing through the cooling water pipe that has been routed through the inside of the absorber and the condenser / condenser body is used as an indoor unit. The temperature of the low-temperature heat source supplied to the evaporator is reduced to about 7 ° C during the heating operation in which the refrigerant is circulated and supplied to the evaporator, and the refrigerant vapor generated by the high-temperature generator is supplied to the low-temperature generator as a heat source.
When trying to evaporate the refrigerant even in the low temperature generator, the internal pressure of the high temperature generator becomes abnormally high, but since the heating container communicating with the low temperature generator is provided, the first refrigeration cycle is stopped and the second refrigeration cycle is stopped. By performing the single-effect operation of only the refrigeration cycle of, by heating the refrigerant in the heating container to evaporate and separate,
A heating operation excellent in COP can be performed by keeping the inside of the machine at atmospheric pressure or less.
【００２０】[0020]
【実施例】以下、本発明の実施例を図１に基づいて説明
する。なお、図１において前記図２・図３の符号と同一
符号で示した部分は、図２・図３で説明したものと同様
の機能を持つ部分であり、本発明の理解を妨げない範囲
で説明は省略した。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. Note that, in FIG. 1, the portions denoted by the same reference numerals as those in FIG. 2 and FIG. 3 have the same functions as those described in FIG. 2 and FIG. 3, so long as they do not hinder the understanding of the present invention. The description is omitted.
【００２１】図中３Ａは、低温発生器３と連通して設け
た吸収液の加熱容器であり、低温発生器３と略同レベル
に設置され、吸収液と蒸気とがそれぞれ出入可能となっ
ている。そして電磁式の、開閉弁６３・６４を開閉する
ことにより、熱源配管５４を介して加熱容器３Ａに供給
する熱量が制御できるようになっている。Reference numeral 3A in the figure is a heating container for the absorbing liquid which is provided in communication with the low temperature generator 3 and is installed at substantially the same level as the low temperature generator 3 so that the absorbing liquid and the vapor can flow in and out respectively. There is. The amount of heat supplied to the heating container 3A via the heat source pipe 54 can be controlled by opening and closing the electromagnetic on-off valves 63 and 64.
【００２２】また、途中に熱交換器２３を有して加熱容
器３Ａの底部と吸収器１０の気相部とを接続している吸
収液配管３５に、ポンプ２０を設けてある。Further, the pump 20 is provided in the absorbing liquid pipe 35 which has a heat exchanger 23 in the middle thereof and connects the bottom portion of the heating container 3A and the vapor phase portion of the absorber 10.
【００２３】また、７１は加熱容器３Ａの内部にある吸
収液の液面レベル（図示せず）を検出する液面計であ
り、この液面計が作動して吸収液の液面が所定レベルよ
り低下したとき、ポンプ２０の運転が停止するように構
成してある。Reference numeral 71 is a liquid level gauge inside the heating container 3A for detecting the liquid level (not shown) of the absorbing liquid. The liquid level gauge operates to set the liquid level of the absorbing liquid to a predetermined level. When it is further lowered, the operation of the pump 20 is stopped.
【００２４】したがって、上記構成の本発明になる吸収
式冷凍機においては、冷水配管５１を室内機に接続する
と共に、冷却水配管５３を室外機や冷却塔に接続し、開
閉弁６１・６２を開け、開閉弁６３・６４を閉じ、ポン
プ１４・１５・１６・１７・２０を起動させると、図１
で説明した冷房運転時と同様に吸収液と冷媒が循環する
ので、図１と同様の二重効用吸収冷凍機として動作す
る。Therefore, in the absorption chiller according to the present invention having the above-mentioned structure, the cold water pipe 51 is connected to the indoor unit, the cooling water pipe 53 is connected to the outdoor unit and the cooling tower, and the opening / closing valves 61 and 62 are connected. Opening, closing the on-off valves 63 and 64, and activating the pumps 14, 15, 16, 17, and 20,
Since the absorbing liquid and the refrigerant circulate in the same manner as during the cooling operation described in 1., it operates as a dual-effect absorption refrigerator similar to that in FIG.
【００２５】そして、冷却水配管５３を室内機に接続
し、冷水配管５１を介して蒸発器に供給する低温熱源水
の温度が、例えば７℃程度と低いときの暖房運転では、
開閉弁６１・６２を閉じ、開閉弁６３・６４を開け、ポ
ンプ１４・１５を停止し、ポンプ１６・１７・２０を運
転する単効用の暖房運転を行う。In the heating operation when the temperature of the low temperature heat source water supplied to the evaporator through the cold water pipe 51 is low, for example, about 7 ° C., the cooling water pipe 53 is connected to the indoor unit.
The on-off valves 61 and 62 are closed, the on-off valves 63 and 64 are opened, the pumps 14 and 15 are stopped, and the single-effect heating operation in which the pumps 16, 17, and 20 are operated is performed.
【００２６】したがって、この場合は吸収器１０の稀液
が熱交換器２３・低温発生器胴２・加熱容器３Ａ・熱交
換器２３を経由して吸収器１０に還流する循環を行い、
加熱容器３Ａにおいて、熱源配管５４を流れる高温高圧
の蒸気により加熱されて、冷媒蒸気を発生させる。Therefore, in this case, the dilute liquid of the absorber 10 is circulated to the absorber 10 via the heat exchanger 23, the low-temperature generator barrel 2, the heating container 3A, and the heat exchanger 23 to circulate,
In the heating container 3A, the refrigerant is heated by the high-temperature and high-pressure steam flowing through the heat source pipe 54 to generate the refrigerant steam.
【００２７】加熱容器３Ａで発生した冷媒蒸気は、低温
発生器３の気相部と精留塔４とを経由して分縮器・凝縮
器胴１１に流入し、冷却水配管５３を流れる温水を加熱
し、自身は冷却されて凝縮する。そして、分縮器１２で
生じた吸収液濃度の比較的高い凝縮液は冷媒配管４４を
通って精留塔４に戻り、分縮器１２では凝縮せず、凝縮
器１３に入って凝縮した液状冷媒が蒸発器９に流入し、
冷水配管５１の内部を流れる熱源水により加熱されて蒸
発し、低温の熱源水から熱を汲み上げる。The refrigerant vapor generated in the heating container 3A flows into the dephlegmator / condenser barrel 11 via the vapor phase portion of the low temperature generator 3 and the rectification tower 4, and warm water flowing through the cooling water pipe 53. To heat and cool itself to condense. Then, the condensed liquid having a relatively high concentration of the absorbing liquid generated in the partial condenser 12 returns to the rectification column 4 through the refrigerant pipe 44, is not condensed in the partial condenser 12, and enters the condenser 13 and is condensed. The refrigerant flows into the evaporator 9,
It is heated and evaporated by the heat source water flowing inside the cold water pipe 51, and heat is pumped up from the low temperature heat source water.
【００２８】蒸発器９で低温熱源水から熱を汲み上げた
冷媒は、吸収器１０に流入して吸収液に吸収され、低温
熱源から汲み上げた熱と、吸収液に吸収されるときに出
る熱で冷却水配管５３を流れる温水を加熱する。The refrigerant whose heat has been pumped up from the low-temperature heat source water in the evaporator 9 flows into the absorber 10 and is absorbed by the absorbing liquid. The heat pumped from the low-temperature heat source and the heat emitted when absorbed by the absorbing liquid. The hot water flowing through the cooling water pipe 53 is heated.
【００２９】なお。精留塔４は低温発生器３の上方では
なく、加熱容器３Ａの上方に設置しても、図１と同様の
作用効果を奏することができる。この場合、ポンプ１６
が吸収器１０から送液する稀液は先ず加熱容器３Ａ（精
留塔４）に流入し、その後低温発生器３を経てポンプ１
８によって吸収器１０に戻るように配管接続する。[0029] Incidentally. Even if the rectification column 4 is installed not above the low temperature generator 3 but above the heating container 3A, the same effects as those in FIG. 1 can be obtained. In this case, the pump 16
The dilute liquid sent from the absorber 10 first flows into the heating container 3A (rectification column 4), and then passes through the low temperature generator 3 and the pump 1
Pipe connection to return to absorber 10 by 8.
【００３０】ところで、本発明は上記実施例に限定され
るものではないので、特許請求の範囲に記載の趣旨から
逸脱しない範囲で各種の変形実施が可能である。By the way, since the present invention is not limited to the above-mentioned embodiments, various modifications can be made without departing from the scope of the claims.
【００３１】[0031]
【発明の効果】以上説明したように本発明の吸収式冷凍
機によれば、蒸発器における冷媒の蒸発用熱源として河
川水などを蒸発器に供給すると共に、吸収器と分縮器・
凝縮器胴との内部を経由して配管した冷却水配管を流れ
る温水を室内機に循環供給して行う暖房運転時に、蒸発
器に供給する低温熱源の温度が７℃程度に低下し、高温
発生器で生成した冷媒蒸気を低温発生器に熱源として供
給し、低温発生器でも冷媒を蒸発させようとすると、高
温発生器の機内圧力が異常に高くなるが、低温発生器と
連通する加熱容器を備えているので、第１の冷凍サイク
ルを停止し、第２の冷凍サイクルのみの単効用運転を行
ないながら、加熱容器で冷媒を加熱して蒸発分離するこ
とで、機内を大気圧以下に保ってＣＯＰに優れた暖房運
転が行える。As described above, according to the absorption chiller of the present invention, river water or the like is supplied to the evaporator as a heat source for evaporating the refrigerant in the evaporator, and at the same time, the absorber and the dephlegmator.
During heating operation in which hot water that flows through the cooling water pipe that passes through the inside of the condenser barrel is circulated and supplied to the indoor unit, the temperature of the low-temperature heat source that is supplied to the evaporator drops to approximately 7 ° C, and high temperature occurs. If the refrigerant vapor generated in the reactor is supplied to the low-temperature generator as a heat source and the refrigerant is also attempted to evaporate in the low-temperature generator, the internal pressure of the high-temperature generator will become abnormally high, but the heating container communicating with the low-temperature generator will be Since it is provided, the first refrigeration cycle is stopped, and the refrigerant is heated in the heating container to evaporate and separate to keep the inside of the machine at atmospheric pressure or less while performing the single-effect operation of only the second refrigeration cycle. A heating operation excellent in COP can be performed.
【図１】実施例１の説明図である。FIG. 1 is an explanatory diagram of a first embodiment.
【図２】従来技術の説明図である。FIG. 2 is an explanatory diagram of a conventional technique.
【図３】従来技術の説明図である。FIG. 3 is an explanatory diagram of a conventional technique.
１ 高温発生器 ２ 低温発生器胴 ３ 低温発生器 ３Ａ 加熱容器 ４ 精留塔 ５ 第１の蒸発器・吸収器胴 ６ 蒸発器 ７ 吸収器 ８ 第２の蒸発器・吸収器胴 ９ 蒸発器 １０ 吸収器 １１ 分縮器・凝縮器胴 １２ 分縮器 １３ 凝縮器 １４・１５・１６・１７・１８・１９・２０ ポンプ ２１・２２・２３ 熱交換器 ３１・３２・３３・３４・３５ 吸収液配管 ４１・４２・４３・４４・４５ 冷媒配管 ５１・５１ａ 冷水配管 ５２ 熱源配管 ５２ａ 気液分離器 ５３・５３ａ 冷却水配管 ５４ 熱源配管 ５５ 熱交換配管 ６１・６２・６３・６４ 開閉弁 ７１ 液面計 1 High Temperature Generator 2 Low Temperature Generator Cylinder 3 Low Temperature Generator 3A Heating Vessel 4 Fractionation Tower 5 First Evaporator / Absorber Cylinder 6 Evaporator 7 Absorber 8 Second Evaporator / Absorber Cylinder 9 Evaporator 10 Absorber 11 Decompressor / condenser cylinder 12 Decompressor 13 Condenser 14 ・ 15 ・ 16 ・ 17 ・ 18 ・ 19 ・ 20 Pump 21 ・ 22 ・ 23 Heat exchanger 31 ・ 32 ・ 33 ・ 34 ・ 35 Absorbing liquid Piping 41 ・ 42 ・ 43 ・ 44 ・ 45 Refrigerant piping 51 ・ 51a Cold water piping 52 Heat source piping 52a Gas-liquid separator 53 ・ 53a Cooling water piping 54 Heat source piping 55 Heat exchange piping 61 ・ 62 ・ 63 ・ 64 Open / close valve 71 Liquid level Total
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田中 貴雄 大阪府守口市京阪本通２丁目５番５号 三 洋電機株式会社内 (72)発明者 小林 唯人 大阪府守口市京阪本通２丁目５番５号 三 洋電機株式会社内 (72)発明者 広瀬 和也 大阪府守口市京阪本通２丁目５番５号 三 洋電機株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takao Tanaka 2-5-5 Keihan Hondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Yuito Kobayashi 2-chome, Keihan Hondori, Moriguchi-shi, Osaka 5-5 Sanyo Electric Co., Ltd. (72) Inventor Kazuya Hirose 2-5-5 Keihan Hondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.
Claims (5)
発器と第１の吸収器とからなる第１の蒸発器・吸収器胴
とを配管接続して第１の冷凍サイクルを構成すると共
に、前記低温発生器と、分縮器と凝縮器とからなる分縮
器・凝縮器胴と、第２の蒸発器と第２の吸収器とからな
る第２の蒸発器・吸収器胴とを配管接続して第２の冷凍
サイクルを構成する、２種類の作動媒体系からなる吸収
式冷凍機において、前記低温発生器と連通して吸収液の
加熱容器を設けたことを特徴とする吸収式冷凍機。1. A first refrigeration cycle is provided by connecting a high temperature generator, a low temperature generator, and a first evaporator / absorber cylinder composed of a first evaporator and a first absorber by piping. A low-temperature generator, a partial condenser / condenser cylinder including a partial condenser and a condenser, and a second evaporator / absorber including a second evaporator and a second absorber. An absorption refrigerator comprising two types of working medium systems in which a pipe is connected to a body to form a second refrigeration cycle, and a heating container for absorbing liquid is provided in communication with the low temperature generator. Absorption refrigerator.
塔が設けられると共に、第２の吸収器から前記精留塔を
備える側の機器・前記精留塔を備えない側の機器の順に
吸収液が循環可能に配管接続された請求項１記載の吸収
式冷凍機。2. A rectification column is provided above a low-temperature generator or a heating vessel, and a device from the second absorber to a device provided with the rectification column and a device not provided with the rectification column are sequentially provided. The absorption refrigerator according to claim 1, wherein the absorption liquid is circulatoryly connected by piping.
留塔の下方で連通した請求項２記載の吸収式冷凍機。3. The absorption refrigerator according to claim 2, wherein the low temperature generator and the gas phase portion of the heating container are communicated with each other below the rectification column.
収器にポンプを備えた吸収液配管によって吸収液が循環
可能に配管接続されると共に、前記精留塔を備える側の
機器から前記精留塔を備えない側の機器へは液面レベル
差による圧力差によって吸収液が循環可能に配管接続さ
れた請求項２記載の吸収式冷凍機。4. An apparatus on the side not equipped with a rectification column and connected to the second absorber by an absorbent solution pipe equipped with a pump so that the absorbent can be circulated through the apparatus and a side equipped with the rectification tower. The absorption refrigerating machine according to claim 2, wherein an absorption liquid is circulated by a pressure difference due to a liquid level difference from the device to a device not provided with the rectification tower.
収液の液面レベルを計測し、その液面レベルが所定レベ
ルより低下したとき、前記精留塔を備えない側の機器と
第２の吸収器とを配管接続する吸収液配管に設けたポン
プの運転を停止する保護装置を有する請求項４記載の吸
収式冷凍機。5. The level of the absorbing liquid in the device without the rectification tower is measured, and when the liquid level falls below a predetermined level, the device without the rectification tower and the The absorption chiller according to claim 4, further comprising a protective device that stops the operation of a pump provided in the absorbent liquid pipe that connects the second absorber with the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12457995A JP3429906B2 (en) | 1995-04-26 | 1995-04-26 | Absorption refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12457995A JP3429906B2 (en) | 1995-04-26 | 1995-04-26 | Absorption refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08296917A true JPH08296917A (en) | 1996-11-12 |
| JP3429906B2 JP3429906B2 (en) | 2003-07-28 |
Family
ID=14888970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12457995A Expired - Fee Related JP3429906B2 (en) | 1995-04-26 | 1995-04-26 | Absorption refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3429906B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959115A (en) * | 2021-09-29 | 2022-01-21 | 山东建筑大学 | R134a-DMF absorption heat pump unit control system and method |
-
1995
- 1995-04-26 JP JP12457995A patent/JP3429906B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959115A (en) * | 2021-09-29 | 2022-01-21 | 山东建筑大学 | R134a-DMF absorption heat pump unit control system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3429906B2 (en) | 2003-07-28 |
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