JPH03144261A - Absorption refrigerator - Google Patents
Absorption refrigeratorInfo
- Publication number
- JPH03144261A JPH03144261A JP28331989A JP28331989A JPH03144261A JP H03144261 A JPH03144261 A JP H03144261A JP 28331989 A JP28331989 A JP 28331989A JP 28331989 A JP28331989 A JP 28331989A JP H03144261 A JPH03144261 A JP H03144261A
- Authority
- JP
- Japan
- Prior art keywords
- absorption liquid
- regenerator
- absorber
- heat recovery
- absorption
- 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
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 171
- 239000007788 liquid Substances 0.000 claims abstract description 161
- 238000011084 recovery Methods 0.000 claims abstract description 56
- 239000006096 absorbing agent Substances 0.000 claims abstract description 40
- 230000002745 absorbent Effects 0.000 claims description 8
- 239000002250 absorbent Substances 0.000 claims description 8
- 239000003507 refrigerant Substances 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
Description
【発明の詳細な説明】
くイ）産業上の利用分野
本発明は吸収冷凍機に関し、再生器からの排熱源と吸収
器からの稀吸収液とを熱交換させる熱回収器を備えた吸
収冷凍機に関する。[Detailed Description of the Invention] B) Industrial Application Field The present invention relates to an absorption refrigerator, which is equipped with a heat recovery device for exchanging heat between an exhaust heat source from a regenerator and a diluted absorption liquid from an absorber. Regarding machines.
（ロ）従来の技術
例えば特公昭６２−４８１４６号公報には、低温熱交換
器（１３）と高温熱交換器（１４）との間の稀吸収液流
路に熱回収器（１６）を設けた吸収冷凍機が開示されて
いる。そして、低温熱交換器（１３）から流れて来た稀
吸収液と再生器（１１）から流れて来た熱源とが熱回収
器（１６）にて熱交換され、温度上昇した稀吸収液が高
温熱交換器（１４）へ流れる。(b) Conventional technology For example, in Japanese Patent Publication No. 62-48146, a heat recovery device (16) is provided in the dilute absorption liquid flow path between the low temperature heat exchanger (13) and the high temperature heat exchanger (14). An absorption refrigerator is disclosed. Then, the dilute absorption liquid flowing from the low temperature heat exchanger (13) and the heat source flowing from the regenerator (11) are heat exchanged in the heat recovery device (16), and the dilute absorption liquid whose temperature has increased is Flows to high temperature heat exchanger (14).
又、特公昭６３−３７８６７号公報には、高温熱交換器
（７）と並列に中温ドレンクーラ（熱回収器）（９）を
設け、低温熱交換器（６）と並列に低温ドレンクーラ（
熱回収器）（８）を設け、さらに、高温熱交換器（７）
と高温再生器（４）との間に高温ドレンクーラ（熱回収
器） （１０）を設けた吸収冷凍機が開示きれている。Moreover, in Japanese Patent Publication No. 63-37867, a medium temperature drain cooler (heat recovery device) (9) is provided in parallel with the high temperature heat exchanger (7), and a low temperature drain cooler (heat recovery device) (9) is provided in parallel with the low temperature heat exchanger (6).
A heat recovery device) (8) is installed, and a high temperature heat exchanger (7) is installed.
An absorption refrigerator is disclosed in which a high-temperature drain cooler (heat recovery device) (10) is provided between a high-temperature regenerator (4) and a high-temperature regenerator (4).
そして、吸収液ポンプ（１１）から流出した稀吸収液の
一部は低温熱交換器（６〉の入口側で分流して低温ドレ
ンクーラ（８）へ流れ、この低温ドレンクーラ（８）か
ら流出した稀吸収液は低温熱交換器（６）から流出した
稀吸収液と合流する。又、高温熱交換器（７）の入口側
で分流した稀吸収液は中温ドレンクーラ（９）へ流れ、
この中温ドレンクーラ（９）から流出した稀吸収液は高
温熱交換器（７）からの稀吸収液と合流し、高温ドレン
クーラ（１０）を経て高温再生器（４）へ流れる。A part of the rare absorption liquid flowing out from the absorption liquid pump (11) is divided at the inlet side of the low-temperature heat exchanger (6>) and flows to the low-temperature drain cooler (8). The absorption liquid merges with the dilute absorption liquid flowing out from the low temperature heat exchanger (6).Also, the dilute absorption liquid separated at the inlet side of the high temperature heat exchanger (7) flows to the medium temperature drain cooler (9).
The diluted absorption liquid flowing out from the medium temperature drain cooler (9) joins with the diluted absorption liquid from the high temperature heat exchanger (7), and flows through the high temperature drain cooler (10) to the high temperature regenerator (4).
（ハ）発明が解決しようとする課題
上記特公昭６２−４８１４６号公報に開示された吸収冷
凍機において、熱回収器（１６）が低温熱交換器（１３
）と高温熱交換器（１４）との間に設けられ、熱回収器
（１６）では低温熱交換器（１３）にて温度上昇した稀
吸収液と再生器（１１）からの熱源とが熱交換されるた
め、熱回収器（１６）での熱回収量が少なくなるという
問題が発生した。又、熱回収量を増やすために、熱回収
器（１６）を低温熱交換器（１３）の入口側に設けた場
合には、低温熱交換器（１３）に流入する稀吸収液温度
が上昇して低温熱交換器（１３）から吸収器へ流れる吸
収液の温度が高くなる。(c) Problems to be Solved by the Invention In the absorption refrigerator disclosed in the above-mentioned Japanese Patent Publication No. 62-48146, the heat recovery device (16) is connected to the low temperature heat exchanger (13).
) and the high-temperature heat exchanger (14), and in the heat recovery device (16), the dilute absorption liquid whose temperature has been raised in the low-temperature heat exchanger (13) and the heat source from the regenerator (11) are heated. Because of this, a problem occurred in that the amount of heat recovered by the heat recovery device (16) decreased. In addition, in order to increase the amount of heat recovery, when the heat recovery device (16) is installed on the inlet side of the low temperature heat exchanger (13), the temperature of the dilute absorption liquid flowing into the low temperature heat exchanger (13) increases. As a result, the temperature of the absorption liquid flowing from the low-temperature heat exchanger (13) to the absorber increases.
又、上記特公昭６３−３７８６７号公報に開示きれた吸
収冷凍機において、稀吸収液の低温熱交換器（６）と低
温ドレンクーラ＜８）とへの配分、及び高温熱交換器（
７）と中温ドレンクーラ（９）とへの配分がむずかしく
、又、稀吸収液の合流部では合流部が発生する虞れがあ
った。きらに、低温熱交換器（６）、又は高温熱交換器
（７）の稀吸収液の出口側の合流部で各熱交換器（６）
、（７）からの稀吸収液の圧力が各ドレンクーラ（８）
、 （９）からの稀吸収液の圧力より高い場合には、
合流がスムーズに行われない虞れがあった。In addition, in the absorption refrigerator disclosed in the above-mentioned Japanese Patent Publication No. 63-37867, the dilute absorption liquid is distributed to the low temperature heat exchanger (6) and the low temperature drain cooler (<8), and the high temperature heat exchanger (
7) and the medium-temperature drain cooler (9) is difficult, and there is a risk that a merging portion may occur at the merging portion of the diluted absorbent liquid. In addition, each heat exchanger (6) is connected at the confluence section on the outlet side of the diluted absorption liquid of the low temperature heat exchanger (6) or the high temperature heat exchanger (7).
The pressure of the dilute absorbent from , (7) is applied to each drain cooler (8).
, if higher than the pressure of the dilute absorbent from (9),
There was a risk that the merging would not proceed smoothly.
本発明は、熱源からの熱回収量を増加させると共に、稀
吸収液を容易に配分して吸収器から熱回収器を介して再
生器へスムーズに送ることを目的とする。The present invention aims to increase the amount of heat recovered from a heat source, and to easily distribute the dilute absorption liquid and smoothly send it from the absorber to the regenerator via the heat recovery device.
（ニ）課題を解決するための手段
本発明は上記課題を解決するために、吸収器（５）と、
高温再生器（１）と、この高温再生器（１）と吸収器（
５）との間に接続された第１稀吸収液配管（８）と、こ
の第１稀吸収液配管（８）に設けられた第１吸収液ポン
プ（１５）とを備えた吸収冷凍機において、吸収器（５
）と高温再生器（１）との間に第２稀吸収液配管（３２
）を接続し、この第２稀吸収液配管（３２）に設けられ
た高温再生器（１）から流出した熱源と吸収器（５）か
ら送られて来た稀吸収液とを熱交換させる熱回収器（３
０）と、第２稀吸収液配管（３２）に設けられた第２吸
収液ポンプ（３３）とを備えた吸収冷凍機を提供するも
のである。(d) Means for solving the problems In order to solve the above problems, the present invention provides an absorber (5),
A high temperature regenerator (1), this high temperature regenerator (1) and an absorber (
5), and a first absorption liquid pump (15) provided in the first dilute absorption liquid piping (8). , absorber (5
) and the high temperature regenerator (1), there is a second dilute absorption liquid pipe (32
) to exchange heat between the heat source flowing out from the high temperature regenerator (1) installed in this second dilute absorption liquid pipe (32) and the dilute absorption liquid sent from the absorber (5). Collection device (3
0) and a second absorption liquid pump (33) provided in a second dilute absorption liquid pipe (32).
又、再生器（１）と吸収器（５）との間に接続された第
１吸収液配管（８）と、この第１吸収液配管（８）に設
けられた第１吸収液ポンプ（１５）とを備えた吸収冷凍
機において、吸収器（５）と再生器（１）との間に第１
吸収液配管と並列に接続された第２稀吸収液配管（８）
と、この第２稀吸収液配管（８）に設けられた第２吸収
液ポンプ（３３）、及び熱回収器とを備え、第２吸収液
ポンプ＜３３）の吐出液量、及び揚程を第１吸収液ポン
プ（１５）より小さくした吸収冷凍機を提供するもので
ある。In addition, a first absorption liquid pipe (8) connected between the regenerator (1) and the absorber (5), and a first absorption liquid pump (15) provided in this first absorption liquid pipe (8) ), in which a first
Second dilute absorption liquid pipe (8) connected in parallel with the absorption liquid pipe
, a second absorption liquid pump (33) provided on the second dilute absorption liquid pipe (8), and a heat recovery device, and the discharge liquid amount and lift of the second absorption liquid pump <33) are adjusted to a second level. This invention provides an absorption refrigerator that is smaller than one absorption liquid pump (15).
（ネ）作用
上記吸収冷凍機の運転時、第２吸収液ポンプ（３３）が
運転され、稀吸収液が第２稀吸収液配管（３２）を介し
て熱回収器（３０）へ送られ、稀吸収液上蒸気ドレンと
の温度差が大きくなり、又、第２吸収液ポンプ（３３）
の運転により熱回収器（３０）へ送られる稀吸収液の量
が略一定に保たれ、熱回収器（３０）での熱回収量を増
加させることが可能になる。又、第２吸収液ポンプ（３
３）の運転により稀吸収液が第２稀吸収液配管（３２）
へ流れ、稀吸収液の第１．第２稀吸収液配管（８） 、
（３２）への配分を容易に行うことが可能になる。(f) Function When the absorption refrigerator is operated, the second absorption liquid pump (33) is operated, and the diluted absorption liquid is sent to the heat recovery device (30) via the second diluted absorption liquid piping (32), The temperature difference between the diluted absorption liquid and the upper steam drain becomes large, and the second absorption liquid pump (33)
By this operation, the amount of dilute absorption liquid sent to the heat recovery device (30) is kept substantially constant, making it possible to increase the amount of heat recovered in the heat recovery device (30). In addition, the second absorption liquid pump (3
Due to the operation of 3), the diluted absorption liquid flows into the second diluted absorption liquid pipe (32).
The dilute absorption liquid flows into the first column. 2nd dilute absorption liquid piping (8),
(32) can be easily allocated.
又、第２吸収液ポンプ（３３）の吐出液量、及び揚程が
第１吸収液ポンプ（１５）より小さいため、熱回収器（
３０）へ送られる稀吸収液量が少なく、熱回収器（３０
）での稀吸収液温度の上昇を大きくすることができ、高
温の稀吸収液を高温再生器（１）へ供給することが可能
になる。In addition, since the discharge amount and lift of the second absorption liquid pump (33) are smaller than those of the first absorption liquid pump (15), the heat recovery device (
The amount of dilute absorption liquid sent to the heat recovery device (30) is small.
), it is possible to increase the temperature of the diluted absorption liquid, and it becomes possible to supply the high-temperature diluted absorption liquid to the high-temperature regenerator (1).
（へ）実施例
以下、本発明の一実施例を図面に基づいて詳細に説明す
る。(F) Example Hereinafter, an example of the present invention will be described in detail based on the drawings.
図面に示したものは二重効用吸収冷凍機であり、冷媒に
水（Ｈ，０）、吸収剤（吸収液）に臭化リチウム（Ｌｉ
Ｂｒ）水溶液を使用したものである。The one shown in the drawing is a dual-effect absorption refrigerator, which uses water (H,0) as the refrigerant and lithium bromide (Li) as the absorbent (absorbing liquid).
Br) using an aqueous solution.
図面において、（１）は高温再生器、（２）は低温再生
器、〈３）は凝縮器、（４）は蒸発器、（５）は吸収器
、（６）は低温熱交換器、（７）は高温熱交換器、（８
）は第１稀吸収液配管、（９）ないしく１２）は吸収液
配管、（１５）は第１吸収液ポンプ、（１６）ないしく
１８）は冷媒配管、（１９）は冷媒ポンプ、（２２）は
冷水配管であり、それぞれは図面に示したように配管接
続きれている。又、（２３）は濃液ポンプ、（２４）は
濃液ポンプ（２３）と低温熱交換器（６）を側路するバ
イパス配管である。（２５）は冷却水配管であり、この
冷却水配管（２５）の途中には吸収器熱交換器（２６）
、及び凝縮器熱交換器〈２７）が設けられている。In the drawings, (1) is a high-temperature regenerator, (2) is a low-temperature regenerator, (3) is a condenser, (4) is an evaporator, (5) is an absorber, (6) is a low-temperature heat exchanger, ( 7) is a high temperature heat exchanger, (8)
) is the first dilute absorption liquid pipe, (9) or 12) is the absorption liquid pipe, (15) is the first absorption liquid pump, (16) or 18) is the refrigerant pipe, (19) is the refrigerant pump, ( 22) are cold water pipes, and each pipe is connected as shown in the drawing. Further, (23) is a concentrated liquid pump, and (24) is a bypass pipe that bypasses the concentrated liquid pump (23) and the low temperature heat exchanger (6). (25) is a cooling water pipe, and an absorber heat exchanger (26) is located in the middle of this cooling water pipe (25).
, and a condenser heat exchanger (27).
又、（３０）は熱回収器、（３１）は例えばボイラ（図
示せず）から高温蒸気が流れて来る熱源配管であり、こ
の熱源配管（３１）の途中には高温再生器熱交換器（３
１Ａ）、及び熱回収器熱交換器（３０Ａ）がそれぞれ設
けられている。（３２）は吸収器（５）出口側の第１稀
吸収液配管（８）と吸収器（５）との間に接続きれた第
２稀吸収液配管であり、第２稀吸収液配管（３２）の途
中に第２吸収液ポンプ〈３３）、及び熱回収器（３０）
が設けられている。ここで、第２吸収液ポンプ（３３）
の吐出液量、及び揚程は第１吸収液ポンプ（１５）より
小さく、例えば第１吸収液ポンプ（１５）の略２０％で
ある。Further, (30) is a heat recovery device, (31) is a heat source pipe through which high-temperature steam flows from, for example, a boiler (not shown), and a high-temperature regenerator heat exchanger ( 3
1A) and a heat recovery device heat exchanger (30A), respectively. (32) is a second dilute absorption liquid piping that is connected between the first dilute absorption liquid piping (8) on the outlet side of the absorber (5) and the absorber (5), and the second dilute absorption liquid piping ( 32), there is a second absorption liquid pump (33) and a heat recovery device (30).
is provided. Here, the second absorption liquid pump (33)
The discharge amount and lift of the pump are smaller than those of the first absorption liquid pump (15), for example, approximately 20% of those of the first absorption liquid pump (15).
上記吸収冷凍機の運転時、従来の吸収冷凍機と同様に高
温再生器（１）で蒸発した冷媒は低温再生器（２）を経
て凝縮器（３）へ流れ、凝縮器熱交換器（２７）を流れ
る水と熱交換して凝縮液化した後冷媒配管（１７）を介
して蒸発器（４）へ流れる。そして、冷媒が冷水配管（
２２〉内の水と熱交換して蒸発し、気化熱によって冷水
配管（２２）内の水が冷却される。During operation of the absorption chiller, the refrigerant evaporated in the high temperature regenerator (1) flows through the low temperature regenerator (2) to the condenser (3), similar to the conventional absorption chiller, and flows into the condenser heat exchanger (27). ), the refrigerant is condensed and liquefied by exchanging heat with the water flowing through the refrigerant pipe (17), and then flows to the evaporator (4) via the refrigerant pipe (17). Then, the refrigerant is transferred to the cold water pipe (
It evaporates by exchanging heat with the water in the cold water pipe (22), and the water in the cold water pipe (22) is cooled by the heat of vaporization.
そして、冷水が負荷に循環して冷房運転が行われる。又
、蒸発器（４）で蒸発した冷媒は吸収器（５）で吸収液
に吸収される。そして、冷媒を吸収して濃度が薄くなっ
た吸収液が第１吸収液ポンプ（１５）の運転により吸収
器（５）から低温熱交換器（６）、及び高温熱交換器（
７）を経て高温再生器〈１）へ送られる。高温再生器（
１）に入った吸収液は高温再生器熱交換器（３１Ａ）に
よって加熱され、冷媒が蒸発し、中濃度の吸収液が高温
熱交換器（７）を経て低温再生器（２）へ入る。又、高
温再生器熱交換器（３１Ａ）から流出した蒸気ドレン（
熱源）は熱回収器（３０）へ流れる。そして、低温再生
器（２〉の吸収液は高温再生器（１）から冷媒配管（１
６）を流れて来た冷媒蒸気によって加熱され、さらに冷
媒が蒸発分離きれ濃度が高くなる６高濃度になった吸収
液（以下濃度という）は低温熱交換器（６）を経て温度
低下して吸収器（５）へ送られ、散布される。Then, the cold water is circulated to the load to perform cooling operation. Further, the refrigerant evaporated in the evaporator (4) is absorbed into an absorption liquid in the absorber (5). Then, the absorption liquid whose concentration has become diluted by absorbing the refrigerant is transferred from the absorber (5) to the low-temperature heat exchanger (6) and the high-temperature heat exchanger (
7) and then sent to the high temperature regenerator <1). High temperature regenerator (
The absorption liquid entering 1) is heated by the high temperature regenerator heat exchanger (31A), the refrigerant is evaporated, and the medium concentration absorption liquid enters the low temperature regenerator (2) via the high temperature heat exchanger (7). In addition, steam drain (31A) flowing out from the high temperature regenerator heat exchanger (31A)
heat source) flows to a heat recovery device (30). The absorption liquid of the low-temperature regenerator (2) is transferred from the high-temperature regenerator (1) to the refrigerant pipe (1).
6) is heated by the refrigerant vapor flowing through the refrigerant, and the refrigerant is further evaporated and separated, increasing its concentration. 6 The highly concentrated absorption liquid (hereinafter referred to as concentration) passes through the low-temperature heat exchanger (6) and its temperature is lowered. It is sent to the absorber (5) and dispersed.
又、稀吸収液が第２吸収液ポンプ（３３〉の運転により
吸収器（５〉から熱回収器（３０）へ送られる。そして
、例えば３８°Ｃの稀吸収液が熱回収器熱交換器（３０
Ａ）にて蒸気ドレン（例えば１６５℃）と熱交換して温
度は上昇し、蒸気ドレンから熱が回収される。温度が例
えば１３０°Ｃに上昇した稀吸収液が高温再生器（１）
へ送られ、第１吸収液ポンプ（１５）により送られて来
た稀吸収液と一緒になり加熱きれる。又、熱回収器（３
０）から例えば７０″Ｃに温度が下がったドレン凝縮水
が流出する。Also, the diluted absorption liquid is sent from the absorber (5> to the heat recovery device (30) by the operation of the second absorption liquid pump (33). Then, the diluted absorption liquid at, for example, 38°C is sent to the heat recovery device heat exchanger. (30
In A), the temperature increases by exchanging heat with the steam drain (for example, 165° C.), and the heat is recovered from the steam drain. The dilute absorption liquid whose temperature has increased to, for example, 130°C is transferred to the high-temperature regenerator (1).
The diluted absorption liquid is heated together with the diluted absorption liquid sent by the first absorption liquid pump (15). In addition, a heat recovery device (3
The condensed water whose temperature has dropped from 0) to, for example, 70"C flows out.
以下、同様に、吸収器（５）から第１吸収液ポンプ（１
５）により低温熱交換器（６）、及び高温熱交換器（７
〉を経て送られて来た稀吸収液と、第２吸収液ポンプ（
３３）により熱回収器（３０〉を経て送られて来た稀吸
収液とが高温再生器（１）にて加熱される。又、熱回収
器（３０）へは第２吸収液ポンプ（３３）により略一定
量の温度の低い稀吸収液が送られ、この稀吸収液と高温
再生器（１）からの蒸気ドレンとが熱交換する。Hereinafter, similarly, from the absorber (5) to the first absorption liquid pump (1
5), the low temperature heat exchanger (6) and the high temperature heat exchanger (7
〉 and the second absorption liquid pump (
The dilute absorption liquid sent via the heat recovery device (30>) is heated by the high temperature regenerator (1). Also, the second absorption liquid pump (33) is sent to the heat recovery device (30). ) sends a substantially constant amount of low-temperature dilute absorption liquid, and this dilute absorption liquid and the steam drain from the high temperature regenerator (1) exchange heat.
上記実施例によれば、吸収冷凍機の運転時、吸収器（５
）に溜った稀吸収液が第２吸収液ポンプく３３）の運転
により第２稀吸収液配管（３２）を経て熱回収器（３０
）へ送られ、温度の低い稀吸収液が高温再生器（１）か
ら流れて来た蒸気ドレンにより熱回収器（３０）にて加
熱され温度上昇するため、熱回収器（３０）での稀吸収
液と蒸気ドレンとの温度差を大きくすることができ、又
、熱回収器（３０）へ送られる稀吸収液の量を略一定に
保つことができ、この結果、熱回収器（３０）での熱回
収量を増加させることができる。又、熱回収器（３０）
で温度上昇した稀吸収液は高温再生器（１）へ送られ、
低温熱交換器（６）へ流れないため、低温熱交換器（６
〉から吸収器（５）へ流れる濃液の温度を低く保つこと
ができる。According to the above embodiment, when the absorption refrigerator is operated, the absorber (5
) The dilute absorbent liquid accumulated in
), the low-temperature diluted absorption liquid is heated in the heat recovery device (30) by the steam drain flowing from the high-temperature regenerator (1), and its temperature rises. The temperature difference between the absorption liquid and the steam drain can be increased, and the amount of dilute absorption liquid sent to the heat recovery device (30) can be kept approximately constant. The amount of heat recovered can be increased. Also, heat recovery device (30)
The diluted absorption liquid whose temperature has increased is sent to the high temperature regenerator (1),
Because it does not flow to the low temperature heat exchanger (6), the low temperature heat exchanger (6
) The temperature of the concentrated liquid flowing from the absorber (5) to the absorber (5) can be kept low.
さらに、第２稀吸収液配管（３２）は第１稀吸収液配管
（８）と並列に設けられ、それぞれの吸収液配管（３２
） 、 （８）の合流部はないため、合流部の発生を防
止することができる。又、熱回収用の第２稀吸収液配管
（３２）、及び第２吸収液ポンプ（３３）をそれぞれ設
けているため、稀吸収液を第１稀吸収液配管（８）と第
２稀吸収液配管（３２）とへ各ポンプ（１５） 、 （
３３）の能力に応じて容易に配分することができ、又、
稀吸収液を熱回収器（３０）へ第２吸収液ポンプ〈３３
）により確実に送ることができ、この結果、熱回収を効
率良く行うことができる。Further, the second dilute absorption liquid pipe (32) is provided in parallel with the first dilute absorption liquid pipe (8), and the second dilute absorption liquid pipe (32) is provided in parallel with the first dilute absorption liquid pipe (8).
) and (8), there is no merging portion, so the occurrence of merging portions can be prevented. In addition, since a second dilute absorption liquid pipe (32) and a second absorption liquid pump (33) are provided for heat recovery, the dilute absorption liquid is transferred between the first dilute absorption liquid piping (8) and the second dilute absorption liquid pipe (8). Liquid piping (32) and each pump (15), (
33) can be easily allocated according to the ability of
The second absorption liquid pump <33
), the heat can be reliably sent, and as a result, heat can be recovered efficiently.
又、第２吸収液ポンプ（３３）の吐出液量、及び揚程が
第１吸収液ポンプ（１５）より小さいため、吸収器（５
）から熱回収器（３０）へ流れる稀吸収液の量を少なく
して、熱回収器（３０）での上昇温度を大きくすること
ができ、熱回収により高温になった稀吸収液を高温再生
器（１）へ送ることができる。In addition, since the discharge amount and lift of the second absorption liquid pump (33) are smaller than those of the first absorption liquid pump (15), the absorber (5
) to the heat recovery device (30), the temperature rise in the heat recovery device (30) can be increased, and the dilute absorption liquid that has become high temperature due to heat recovery can be regenerated at high temperature. It can be sent to the container (1).
尚、本発明は上記実施例に限定されるものではなく、例
えば第２稀吸収液配管（３２）を吸収器（５）の吸収液
溜（５Ａ）と高温再生器〈１）との間、又は図面に一点
鎖線で示したように吸収器（５）と低温再生器（２）と
の間に接続した場合にも同様の作用効果を得ることがで
きる。又、高温再生器（１）を例えばガスバーナを備え
た高温再生器として、熱回収器（３０）で燃焼塵ガス（
熱？ＩＸ）から熱回収するように構成した吸収冷凍機に
おいても同様の作用効果を得ることができる。It should be noted that the present invention is not limited to the above embodiments, and for example, the second dilute absorption liquid pipe (32) may be connected between the absorption liquid reservoir (5A) of the absorber (5) and the high temperature regenerator (1), Alternatively, similar effects can be obtained when connected between the absorber (5) and the low-temperature regenerator (2) as shown by the dashed line in the drawing. Further, the high temperature regenerator (1) may be a high temperature regenerator equipped with a gas burner, for example, and the heat recovery device (30) may be used to collect combustion dust gas (
heat? Similar effects can be obtained with an absorption refrigerator configured to recover heat from the heat source (IX).
（ト）発明の効果
本発明は以上のように構成された吸収冷凍機であり、吸
収器と再生器との間に第１吸収液配管と並列に第２吸収
液配管を接続し、この第２吸収液配管に再生器からの排
熱源と吸収器からの稀吸収液とを熱交換させる熱回収器
と第２吸収液ポンプとを設けることにより、稀吸収液を
第１吸収液配管と第２吸収液配管とに容易に分配するこ
とができる。又、熱回収器に流入する稀吸収液と排熱源
との温度差を大きくすることができ、又、第２吸収液ポ
ンプから熱回収器へ送られる稀吸収液の量を略一定に保
つことができ、この結果、熱回収量を大きくして熱回収
効率を向上させることができる。又、熱回収用の第２吸
収液ポンプにより第１稀吸収液配管に設けられた第１吸
収液ポンプの運転に関係なく稀吸収液を吸収器から熱回
収器を介して再生器へスムーズに送ることができる。(G) Effects of the Invention The present invention is an absorption refrigerating machine configured as described above, in which a second absorption liquid pipe is connected in parallel with the first absorption liquid pipe between the absorber and the regenerator, and the second absorption liquid pipe is connected between the absorber and the regenerator. By providing the second absorption liquid pipe with a heat recovery device and a second absorption liquid pump that exchange heat between the waste heat source from the regenerator and the diluted absorption liquid from the absorber, the diluted absorption liquid can be transferred between the first absorption liquid pipe and the second absorption liquid pipe. It can be easily distributed to two absorption liquid pipes. Furthermore, the temperature difference between the dilute absorption liquid flowing into the heat recovery device and the exhaust heat source can be increased, and the amount of dilute absorption liquid sent from the second absorption liquid pump to the heat recovery device can be kept approximately constant. As a result, the amount of heat recovery can be increased and the heat recovery efficiency can be improved. In addition, the second absorption liquid pump for heat recovery smoothly transfers the diluted absorption liquid from the absorber to the regenerator via the heat recovery device, regardless of the operation of the first absorption liquid pump installed in the first diluted absorption liquid piping. Can be sent.
ひらに、熱回収用の第２吸収液ポンプの吐出液量及び揚
程は第１１ｆｉ収液ポンプより小さいため、熱回収器へ
送られる稀吸収液の量が抑えられ、熱回収器で大幅に温
度上昇して高温になった稀吸収液を高温再生器へ送るこ
とができる。Furthermore, since the discharge volume and head of the second absorption liquid pump for heat recovery are smaller than those of the 11th fi liquid absorption pump, the amount of dilute absorption liquid sent to the heat recovery device is suppressed, and the temperature in the heat recovery device is significantly reduced. The dilute absorption liquid that has risen to a high temperature can be sent to a high temperature regenerator.
図面は本発明の一実施例を示す吸収冷凍機の回路構成図
である。
（１）・・・高温再生器、 （５）・・・吸収器、 （
６）・・・低温熱交換器、 〈７）・・・高温熱交換器
、 （８）・・・第１稀吸収液配管、 （１５）・・・
第１吸収液ポンプ、 （３０）・・・熱回収器、 （３
２）・・・第２稀吸収液配管、 （３３）・・・第２吸
収液ポンプ。The drawing is a circuit diagram of an absorption refrigerator showing an embodiment of the present invention. (1)...High temperature regenerator, (5)...Absorber, (
6)...Low temperature heat exchanger, <7)...High temperature heat exchanger, (8)...First dilute absorption liquid piping, (15)...
First absorption liquid pump, (30) ... heat recovery device, (3
2)...Second dilute absorption liquid piping, (33)...Second absorption liquid pump.
Claims (1)
接続された第１吸収液配管と、この第１吸収液配管に設
けられた第１吸収液ポンプとを備えた吸収冷凍機におい
て、吸収器と再生器との間に第１吸収液配管と並列に接
続された第２吸収液配管と、この第２吸収液配管に設け
られて再生器から流出した熱源と吸収器から流出した稀
吸収液とを熱交換させる熱回収器と、第２吸収液配管に
設けられた第２吸収液ポンプとを備えたことを特徴とす
る吸収冷凍機。 ２、吸収器と、再生器と、この再生器と吸収器との間に
接続された第１吸収液配管と、この第１吸収液配管に設
けられた第１吸収液ポンプとを備えた吸収冷凍機におい
て、吸収器と再生器との間に第１吸収液配管と並列に接
続された第２稀吸収液配管と、この第２稀吸収液配管に
設けられた第２吸収液ポンプ、及び再生器からの排熱源
と吸収器からの稀吸収液とを熱交換させる熱回収器とを
備え、上記第２吸収液ポンプの吐出液量、及び揚程を第
１吸収液ポンプより小さくしたことを特徴とする吸収冷
凍機。[Claims] 1. An absorber, a regenerator, a first absorption liquid pipe connected between the regenerator and the absorber, and a first absorption liquid provided in the first absorption liquid pipe. In an absorption refrigerator equipped with a pump, a second absorption liquid piping is connected in parallel with the first absorption liquid piping between the absorber and the regenerator, and a second absorption liquid piping is provided in the second absorption liquid piping and is connected from the regenerator to the second absorption liquid piping. An absorption refrigerator comprising: a heat recovery device for exchanging heat between an outflowing heat source and a dilute absorption liquid outflowing from an absorber; and a second absorption liquid pump provided in a second absorption liquid piping. 2. An absorption system comprising an absorber, a regenerator, a first absorbent pipe connected between the regenerator and the absorber, and a first absorbent pump provided on the first absorbent pipe. In the refrigerator, a second diluted absorption liquid piping connected in parallel with the first absorption liquid piping between the absorber and the regenerator, a second absorption liquid pump provided on the second diluted absorption liquid piping, and It is equipped with a heat recovery device that exchanges heat between the exhaust heat source from the regenerator and the diluted absorption liquid from the absorber, and the discharge amount and head of the second absorption liquid pump are made smaller than those of the first absorption liquid pump. Features of absorption refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28331989A JP2777427B2 (en) | 1989-10-30 | 1989-10-30 | Absorption refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28331989A JP2777427B2 (en) | 1989-10-30 | 1989-10-30 | Absorption refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03144261A true JPH03144261A (en) | 1991-06-19 |
| JP2777427B2 JP2777427B2 (en) | 1998-07-16 |
Family
ID=17663926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28331989A Expired - Lifetime JP2777427B2 (en) | 1989-10-30 | 1989-10-30 | Absorption refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2777427B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100402950C (en) * | 2003-05-14 | 2008-07-16 | 荏原冷热系统株式会社 | Absorption refrigerating machine |
-
1989
- 1989-10-30 JP JP28331989A patent/JP2777427B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100402950C (en) * | 2003-05-14 | 2008-07-16 | 荏原冷热系统株式会社 | Absorption refrigerating machine |
| CN101240950B (en) | 2003-05-14 | 2011-02-09 | 荏原冷热系统株式会社 | absorption freezer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2777427B2 (en) | 1998-07-16 |
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