JPH1047806A - Absorption refrigerating machine - Google Patents
Absorption refrigerating machineInfo
- Publication number
- JPH1047806A JPH1047806A JP8215038A JP21503896A JPH1047806A JP H1047806 A JPH1047806 A JP H1047806A JP 8215038 A JP8215038 A JP 8215038A JP 21503896 A JP21503896 A JP 21503896A JP H1047806 A JPH1047806 A JP H1047806A
- Authority
- JP
- Japan
- Prior art keywords
- solution
- hot water
- temperature regenerator
- refrigerant
- heat
- 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]
【発明の属する技術分野】本発明は太陽熱、工業排熱、
ゴミ焼却処理場、ビルの空調用の中低温熱水等を最大限
に利用する吸収冷凍機に関するものである。The present invention relates to solar heat, industrial waste heat,
The present invention relates to an absorption chiller that makes full use of medium- and low-temperature hot water for air conditioning of a garbage incineration plant and a building.
【0002】[0002]
【従来の技術】従来、中低温排熱の利用には、図3に示
す単効用吸収冷凍機を用いたものが一般的である。温水
利用の吸収冷凍機を図3を用いて説明すれば、凝縮器
1、低温再生器2、蒸発器3、吸収器4、溶液熱交換器
7Aが備えられ、これらの機器を接続して、溶液流路及
び冷媒流路が配備されている。2. Description of the Related Art Conventionally, a medium-temperature exhaust heat is generally used by using a single-effect absorption refrigerator shown in FIG. The absorption refrigerator using hot water will be described with reference to FIG. 3. The condenser 1, the low-temperature regenerator 2, the evaporator 3, the absorber 4, and the solution heat exchanger 7A are provided. A solution channel and a coolant channel are provided.
【0003】冷媒はポンプP1より冷媒液配管13に送
られ、蒸発器3内の熱交換チューブ18A上に散布さ
れ、冷水配管9内に流れる冷水によって加熱され蒸発す
る。冷水は冷媒の蒸発によって熱を奪われ冷却される。
この冷媒蒸発による冷水冷却が本吸収冷凍機の冷凍能力
である。蒸発した冷媒は濃溶液配管20より散布された
濃い溶液(以下、「濃溶液」と称する)に吸収器4内で
吸収され希釈され希溶液となる。The refrigerant is sent from the pump P 1 to the refrigerant liquid pipe 13, is sprayed on the heat exchange tube 18 A in the evaporator 3, and is heated and evaporated by the cold water flowing in the cold water pipe 9. Chilled water is deprived of heat by evaporation of the refrigerant and cooled.
The cooling of the cold water by the evaporation of the refrigerant is the refrigeration capacity of the absorption refrigerator. The evaporated refrigerant is absorbed and diluted in the absorber 4 by the concentrated solution (hereinafter, referred to as “concentrated solution”) sprayed from the concentrated solution pipe 20 to become a dilute solution.
【0004】希溶液は、溶液ポンプP2より希溶液配管
19を通り低温再生器2に送られ、熱交換器用チューブ
18C内に流れる中低温水によって加熱、濃縮される。
濃縮された希溶液が濃溶液となる。該濃溶液は濃溶液配
管20を通り吸収器4に送られ、蒸発器3内で蒸発した
冷媒の吸収に使用される。また、低温再生器2内の希溶
液の濃縮により発生した冷媒蒸気は、凝縮器1に送られ
熱交換用チューブ18B内を流れる冷却水によって冷却
され凝縮する。凝縮した冷媒は、冷媒ドレン配管12を
通り蒸発器3に送られ、冷水配管9を通る冷水を冷却す
るために使用される。[0004] The dilute solution is sent from the solution pump P2 to the low temperature regenerator 2 through the dilute solution pipe 19, and is heated and concentrated by the low temperature water flowing in the heat exchanger tube 18C.
The concentrated dilute solution becomes a concentrated solution. The concentrated solution is sent to the absorber 4 through the concentrated solution pipe 20, and is used for absorbing the refrigerant evaporated in the evaporator 3. Further, the refrigerant vapor generated by the concentration of the dilute solution in the low-temperature regenerator 2 is cooled by the cooling water flowing to the condenser 1 and flowing through the heat exchange tube 18B and condensed. The condensed refrigerant is sent to the evaporator 3 through the refrigerant drain pipe 12 and is used to cool the chilled water flowing through the chilled water pipe 9.
【0005】なお、図3において、溶液熱交換器7Aは
希溶液配管19を通る希溶液と濃溶液配管20を通る濃
溶液の間で熱交換を行なう熱交換器である。また、17
は容量制御弁である。In FIG. 3, a solution heat exchanger 7A is a heat exchanger for exchanging heat between a dilute solution passing through a dilute solution pipe 19 and a concentrated solution passing through a concentrated solution pipe 20. Also, 17
Is a capacity control valve.
【0006】また、図4のごとく2重効用吸収冷凍機の
低温再生器に温水を利用するシステムが提案されてい
る。図4のシステムでは希釈された溶液を濃縮する再生
器が高温再生器5および低温再生器2からなり、低温再
生器2には中低温熱用熱交換用チューブ18Fを付加し
ている。吸収器4から溶液ポンプP2より希溶液配管1
9を通り高温再生器5に送られ、熱交換用チューブ18
Eを流れる加熱媒体(主に蒸気)によって加熱され、中
間濃度の溶液(以下、「中間濃度溶液」とする)に濃縮
される。Further, as shown in FIG. 4, there has been proposed a system utilizing hot water in a low-temperature regenerator of a double effect absorption refrigerator. In the system shown in FIG. 4, a regenerator for concentrating the diluted solution includes a high-temperature regenerator 5 and a low-temperature regenerator 2, and the low-temperature regenerator 2 is provided with a heat exchange tube 18F for medium-low temperature heat. Dilute solution piping 1 from absorber 4 to solution pump P2
9 and sent to the high temperature regenerator 5 where the heat exchange tubes 18
It is heated by a heating medium (mainly steam) flowing through E, and is concentrated to an intermediate concentration solution (hereinafter, referred to as “intermediate concentration solution”).
【0007】中間濃度溶液は中間濃度溶液配管14を通
り低温再生器2に送られる。高温再生器5内で発生した
冷媒蒸気は低温再生器2に送られ、低温再生器2内の中
間濃度溶液を加熱・濃縮する。この際、中低温熱を熱交
換用チューブ18F内に流し低温再生器2内の中間濃度
溶液を加熱することによって排熱回収を行う。中間濃度
溶液は、低温再生器2内にて濃縮され濃溶液となり、該
濃溶液は吸収器4に送られ冷水を作成する際に生じる冷
媒蒸気を吸収することに使用される。The intermediate concentration solution is sent to the low temperature regenerator 2 through the intermediate concentration solution pipe 14. The refrigerant vapor generated in the high-temperature regenerator 5 is sent to the low-temperature regenerator 2, and heats and concentrates the intermediate-concentration solution in the low-temperature regenerator 2. At this time, the exhaust heat recovery is performed by flowing the medium / low temperature heat into the heat exchange tube 18F and heating the intermediate concentration solution in the low temperature regenerator 2. The intermediate-concentration solution is concentrated in the low-temperature regenerator 2 to become a concentrated solution. The concentrated solution is sent to the absorber 4 and used to absorb refrigerant vapor generated when producing cold water.
【0008】なお、図4において、図3と同一符号を付
した部分は同一又は相当部分を示す。また、溶液熱交換
器7Bは希溶液配管19を通る希溶液と濃溶液配管20
を通る濃溶液の間で熱交換を行なう熱交換器、溶液熱交
換器7Aは中間濃度溶液配管14を通る中間濃度溶液と
希溶液配管19を通る希溶液の間で熱交換を行なう熱交
換器である。In FIG. 4, portions denoted by the same reference numerals as those in FIG. 3 indicate the same or corresponding portions. The solution heat exchanger 7B is connected to the dilute solution passing through the dilute solution pipe 19 and the concentrated solution pipe 20.
A heat exchanger for performing heat exchange between the concentrated solution passing through the heat exchanger, and a solution heat exchanger 7A for performing heat exchange between the intermediate concentration solution passing through the intermediate concentration solution pipe and the dilute solution passing through the dilute solution pipe 19 It is.
【0009】[0009]
【発明が解決しようとする課題】上記従来のような吸収
冷凍機では、冷凍負荷とそれに見合った前記中低温排熱
の熱量及び温度のバランスを取ることは稀であり、中低
温排熱量に見合った吸収冷凍機を用意したが、不足分は
別の熱源を追加したり、補助熱源付きの冷凍機にする
と、別の熱源及び補助熱源の熱を使用してしまい中低温
排熱を有効に利用できないという問題があった。In the above-mentioned conventional absorption chiller, it is rare to balance the refrigeration load with the amount of heat and the temperature of the medium- and low-temperature exhaust heat corresponding to the refrigeration load. The absorption chiller was prepared, but if a shortage was added by adding another heat source or using a refrigerator with an auxiliary heat source, the heat of another heat source and the auxiliary heat source would be used, and the medium and low temperature exhaust heat would be used effectively. There was a problem that it was not possible.
【0010】本発明は上記の点に鑑みてなされたもの
で、温水専用熱交換器を設けることにより、中低温水を
100%利用することができる吸収冷凍機を提供するこ
とを目的とする。[0010] The present invention has been made in view of the above points, and an object of the present invention is to provide an absorption refrigerator capable of using 100% of medium-low temperature water by providing a heat exchanger exclusively for hot water.
【0011】[0011]
【課題を解決するための手段】上記課題を解決するため
請求項1に記載の発明は、吸収器、蒸発器、凝縮器、低
温再生器、溶液熱交換器、溶液ポンプ、冷媒ポンプおよ
びそれらを結ぶ配管からなり、再生器の熱源に温水を用
いる吸収冷凍機において、再生器の熱源である温水を加
熱する温水熱交換器と、ガス、油又は蒸気等の高ポテン
シャルエネルギーを熱源とし前記再生器からの冷媒溶液
を濃縮するとともに、発生した冷媒蒸気を前記温水熱交
換器に供給する高温再生器とを設けたことを特徴とす
る。In order to solve the above-mentioned problems, the invention according to claim 1 is directed to an absorber, an evaporator, a condenser, a low-temperature regenerator, a solution heat exchanger, a solution pump, a refrigerant pump and the like. In an absorption refrigerator using hot water as a heat source of a regenerator, a hot water heat exchanger for heating hot water that is a heat source of the regenerator, and the regenerator using high potential energy such as gas, oil, or steam as a heat source. And a high-temperature regenerator for supplying the generated refrigerant vapor to the hot water heat exchanger while concentrating the refrigerant solution from the heat exchanger.
【0012】また、請求項2に記載の発明は請求項1に
記載の吸収冷凍機において、高温再生器を熱源として用
いない温水単独で運転するモードと、高温再生器を熱源
として用い温水を加熱しながら運転するモードを持つこ
とを特徴とする。According to a second aspect of the present invention, in the absorption refrigerator of the first aspect, a mode in which the high-temperature regenerator is used as a heat source and the high-temperature regenerator is used as a heat source is used for heating the hot water. It is characterized by having a mode of driving while driving.
【0013】[0013]
【発明の実施の形態】以下、本発明の実施の形態例を図
面に基づいて説明する。図1は本発明に係る吸収冷凍機
の構成例を示す図である。図1において、図3及び図4
と同一符号を付した部分は同一又は相当部分を示す。6
は温水専用熱交換器である。蒸発器3内で蒸発した冷媒
は吸収器4内で濃溶液に吸収され、該濃溶液は冷媒蒸気
により希釈され希溶液となる。該希溶液はポンプP2に
より希溶液配管19を通り低温再生器2に送られ、熱交
換用チューブ18C内を流れる中低温水によって加熱・
濃縮され中間濃溶液となる。そのとき発生した冷媒蒸気
は凝縮器1に移動し、熱交換用チューブ18B内を流れ
る冷水によって冷却・凝縮され、冷媒ドレンとなる。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration example of an absorption refrigerator according to the present invention. In FIG. 1, FIG. 3 and FIG.
The same reference numerals denote the same or corresponding parts. 6
Is a heat exchanger exclusively for hot water. The refrigerant evaporated in the evaporator 3 is absorbed by the concentrated solution in the absorber 4, and the concentrated solution is diluted with the refrigerant vapor to become a dilute solution. The dilute solution is sent to the low-temperature regenerator 2 through the dilute solution pipe 19 by the pump P2, and is heated and cooled by the low-temperature water flowing through the heat exchange tube 18C.
It is concentrated to an intermediately concentrated solution. The refrigerant vapor generated at that time moves to the condenser 1 and is cooled and condensed by the cold water flowing in the heat exchange tube 18B to become a refrigerant drain.
【0014】低温再生器2内の中間濃溶液の一部は、中
間濃溶液配管14B内を通りポンプ3により高温再生器
5に送られる。中低温水配管10内の中低温水の熱量や
温度が低い場合には、高温再生器5内でガス、油又は蒸
気等の高ポテンシャルエネルギーを熱源とし、中間濃溶
液は加熱・濃縮される。A part of the intermediate concentrated solution in the low temperature regenerator 2 is sent to the high temperature regenerator 5 by the pump 3 through the intermediate concentrated solution pipe 14B. When the amount of heat and the temperature of the low-temperature water in the low-temperature water pipe 10 are low, the high-concentration solution is heated and concentrated in the high-temperature regenerator 5 using high potential energy such as gas, oil, or steam as a heat source.
【0015】該中間濃溶液の濃縮の際に発生した冷媒蒸
気は、冷媒蒸気配管15を通り温水専用熱交換器6に入
り熱交換用チューブ18E上で凝縮し、該熱交換用チュ
ーブ18内を流れる中低温水に熱を与える。凝縮した冷
媒は、冷媒ドレン配管11を通り凝縮器1に送られ、該
凝縮器1内で生じた冷媒と共に冷媒ドレン配管12を通
り蒸発器3に送られる。中間温水の熱量や温度が冷凍負
荷をまかなえる場合には、高温再生器5を運転しない。The refrigerant vapor generated during the concentration of the intermediate concentrated solution passes through the refrigerant vapor pipe 15 and enters the heat exchanger 6 exclusively for hot water, and condenses on the heat exchange tube 18E. Gives heat to flowing low-temperature water. The condensed refrigerant is sent to the condenser 1 through the refrigerant drain pipe 11, and is sent to the evaporator 3 through the refrigerant drain pipe 12 together with the refrigerant generated in the condenser 1. When the calorific value and temperature of the intermediate hot water can cover the refrigeration load, the high temperature regenerator 5 is not operated.
【0016】高温再生器5内で濃縮された濃溶液または
中間濃溶液は濃溶液配管20を通り、低温再生器2内で
生じた中間濃溶液と中間濃溶液配管14Aにて混合され
吸収器4に入り、冷媒蒸気の吸収に使用される。The concentrated solution or the intermediate concentrated solution concentrated in the high-temperature regenerator 5 passes through the concentrated solution pipe 20, and is mixed with the intermediate concentrated solution generated in the low-temperature regenerator 2 in the intermediate concentrated solution pipe 14A. And is used to absorb refrigerant vapor.
【0017】また、図2に示す実施の形態例は、上記図
1において温水専用熱交換器6内で凝縮された冷媒を低
温再生器2内に設置した熱交換用チューブ18F内に導
き、希溶液の加熱・濃縮に使用する温水発生器付き吸収
冷凍機の構成である。熱交換用チューブ18F内で希溶
液の加熱・濃縮に使用した冷媒は、冷媒ドレン配管11
を通り凝縮器1に送られ、熱交換用チューブ18B内を
流れる冷水によって冷却・凝縮され、冷媒ドレンとな
る。In the embodiment shown in FIG. 2, the refrigerant condensed in the heat exchanger 6 dedicated to hot water in FIG. 1 is introduced into the heat exchange tube 18F installed in the low-temperature regenerator 2, and the refrigerant is diluted. It is a configuration of an absorption refrigerator with a hot water generator used for heating and concentrating a solution. The refrigerant used for heating and concentrating the dilute solution in the heat exchange tube 18F is the refrigerant drain pipe 11
To the condenser 1 and cooled and condensed by cold water flowing in the heat exchange tube 18B to become a refrigerant drain.
【0018】[0018]
【発明の効果】以上説明したように本発明よれば下記の
如く優れた効果を有する吸収冷凍機を提供できる。As described above, according to the present invention, an absorption refrigerator having the following excellent effects can be provided.
【0019】(1)温水専用熱交換器を有した高温再生
器を使用することにより、低中温水利用吸収冷凍機に適
用した場合、基本となる単効用吸収冷凍機の内部サイク
ル条件をほとんど変更することなく中低温水を100%
使用することができる。(1) By using a high-temperature regenerator having a heat exchanger exclusively for hot water, when applied to an absorption refrigerator using low-medium-temperature water, the basic internal cycle conditions of the single-effect absorption refrigerator are basically changed. 100% medium and low temperature water without
Can be used.
【0020】(2)また、上記(1)より単効用吸収冷
凍機を基本とするため、設計が容易である。(2) Further, the design is easy because the single-effect absorption refrigerating machine is based on the above (1).
【0021】(3)また、上記(1)より伝熱面積をほ
とんど増加することなく安定した冷凍能力を発揮するこ
とができるため、小型化が容易である。(3) In addition, since a stable refrigerating capacity can be exhibited with almost no increase in the heat transfer area as compared with the above (1), miniaturization is easy.
【図1】本発明に係る吸収冷凍機の構成例を示す図であ
る。FIG. 1 is a diagram showing a configuration example of an absorption refrigerator according to the present invention.
【図2】本発明に係る吸収冷凍機の構成例を示す図であ
る。FIG. 2 is a diagram showing a configuration example of an absorption refrigerator according to the present invention.
【図3】従来の単効用吸収冷凍機の構成例を示す図であ
る。FIG. 3 is a diagram showing a configuration example of a conventional single-effect absorption refrigerator.
【図4】従来の2重効用吸収冷凍機の構成例を示す図で
ある。FIG. 4 is a diagram showing a configuration example of a conventional double effect absorption refrigerator.
1 凝縮器 2 低温再生器 3 蒸発器 4 吸収器 5 高温発生器 6 温水専用熱交換器 7A,7B 溶液熱交換器 8 冷却水配管 9 冷水配管 10 中低温水配管 11 冷媒ドレン配管 12 冷媒ドレン配管 13 冷媒液配管 14 中間濃溶液配管 15 冷媒蒸気配管 16 冷媒調節弁 17 加熱媒体調節弁 18A,18B、18C、18D、18E、18F
熱交換用チューブ 19 希溶液配管 20 濃溶液配管 P1、P2、P3 ポンプDESCRIPTION OF SYMBOLS 1 Condenser 2 Low temperature regenerator 3 Evaporator 4 Absorber 5 High temperature generator 6 Heat exchanger only for hot water 7A, 7B Solution heat exchanger 8 Cooling water pipe 9 Cold water pipe 10 Medium / low temperature water pipe 11 Refrigerant drain pipe 12 Refrigerant drain pipe 13 Refrigerant liquid piping 14 Intermediate concentrated solution piping 15 Refrigerant vapor piping 16 Refrigerant control valve 17 Heating medium control valve 18A, 18B, 18C, 18D, 18E, 18F
Heat exchange tube 19 Dilute solution pipe 20 Concentrated solution pipe P1, P2, P3 Pump
Claims (2)
溶液熱交換器、溶液ポンプ、冷媒ポンプおよびそれらを
結ぶ配管からなり、再生器の熱源に温水を用いる吸収冷
凍機において、 前記再生器の熱源である温水を加熱する温水熱交換器
と、高ポテンシャルエネルギーを熱源とし前記再生器か
らの冷媒溶液を濃縮するとともに、発生した冷媒蒸気を
前記温水熱交換器に供給する高温再生器とを設けたこと
を特徴とする吸収冷凍機。1. An absorber, an evaporator, a condenser, a low-temperature regenerator,
An absorption refrigerator comprising a solution heat exchanger, a solution pump, a refrigerant pump and piping connecting them, and using hot water as a heat source of the regenerator, wherein a hot water heat exchanger for heating hot water as a heat source of the regenerator, An absorption refrigerator comprising: a high-temperature regenerator for concentrating a refrigerant solution from the regenerator using energy as a heat source and supplying generated refrigerant vapor to the hot water heat exchanger.
水単独で運転するモードと、高温再生器を熱源として用
い温水を加熱しながら運転するモードを持つことを特徴
とする請求項1に記載の吸収冷凍機2. The apparatus according to claim 1, wherein the apparatus has a mode in which the high-temperature regenerator is operated alone without using the hot water as a heat source and a mode in which the high-temperature regenerator is used as a heat source while heating the hot water. Absorption refrigerator
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21503896A JP3404225B2 (en) | 1996-07-26 | 1996-07-26 | Absorption refrigerator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21503896A JP3404225B2 (en) | 1996-07-26 | 1996-07-26 | Absorption refrigerator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1047806A true JPH1047806A (en) | 1998-02-20 |
JP3404225B2 JP3404225B2 (en) | 2003-05-06 |
Family
ID=16665735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21503896A Expired - Lifetime JP3404225B2 (en) | 1996-07-26 | 1996-07-26 | Absorption refrigerator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3404225B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016023826A (en) * | 2014-07-17 | 2016-02-08 | 荏原冷熱システム株式会社 | Absorption type heat source device |
-
1996
- 1996-07-26 JP JP21503896A patent/JP3404225B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016023826A (en) * | 2014-07-17 | 2016-02-08 | 荏原冷熱システム株式会社 | Absorption type heat source device |
Also Published As
Publication number | Publication date |
---|---|
JP3404225B2 (en) | 2003-05-06 |
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