JPH04174263A - Absorption heat pump - Google Patents

Absorption heat pump

Info

Publication number
JPH04174263A
JPH04174263A JP30033690A JP30033690A JPH04174263A JP H04174263 A JPH04174263 A JP H04174263A JP 30033690 A JP30033690 A JP 30033690A JP 30033690 A JP30033690 A JP 30033690A JP H04174263 A JPH04174263 A JP H04174263A
Authority
JP
Japan
Prior art keywords
pump
absorption
refrigerant liquid
refrigerant
liquid
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
Application number
JP30033690A
Other languages
Japanese (ja)
Other versions
JP2854121B2 (en
Inventor
Masahiro Furukawa
雅裕 古川
Hidetoshi Arima
秀俊 有馬
Masashi Izumi
泉 雅士
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP30033690A priority Critical patent/JP2854121B2/en
Publication of JPH04174263A publication Critical patent/JPH04174263A/en
Application granted granted Critical
Publication of JP2854121B2 publication Critical patent/JP2854121B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Sorption Type Refrigeration Machines (AREA)

Abstract

PURPOSE:To prevent crystallization in a dense liquid tube and to stabilize an operation by connecting a plurality of absorption liquid pumps in parallel on the way of an absorption liquid tube from a generator to an absorber, and providing heat insulators at the pumps and the liquid tube connected to the pump. CONSTITUTION:A plurality of absorption liquid pumps 8, 31 connected in parallel on the way of an absorption liquid tube 13 from a generator 2 to an absorber 5, and heat insulators 29, 34 provided at the pumps 8, 31 and the absorption liquid tubes 13, 30 connected to the pumps 8, 31, are provided. The pumps 8, 31 are switched in operations to stably supply hot water. A plurality of refrigerant liquid pumps 9, 39 connected in parallel on the way of a refrigerant liquid tube 11 from a condenser 3 to an evaporator 6, and heat insulators 37, 42 provided at the pumps 9, 39 and the tubes 11, 38 are provided. The operation of the pumps 9, 39 are switched to stably supply hot water.

Description

【発明の詳細な説明】 (イ)産業上の利用分野 本発明は蒸発器及び発生器に熱源流体を供給し、凝縮器
から熱源流体の温度より高い温度の被加熱流体を供給す
る吸収ヒートポンプに関する。
DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to an absorption heat pump that supplies a heat source fluid to an evaporator and a generator, and supplies a heated fluid at a temperature higher than the temperature of the heat source fluid from a condenser. .

(ロ)従来の技術 例えは、特開昭64−67571号公報には凝縮器の冷
却器に冷却水を流し、蒸発器及び発生器の加熱器に熱源
流体を流し、吸収器から熱m流体の温度以上の被加熱流
体を取出す吸収ヒートポンプが開示されている。そして
、この吸収ヒートポンプの発生器から吸収器に至る吸収
液配管に吸収液ポンプが設けられている。又、凝縮器か
ら蒸発器に至る冷媒液配管に冷媒液ポンプが設けられ、
蒸発器に接続された冷媒液循環配管に冷媒循環ポンプが
設けられている。
(b) An example of conventional technology is that in JP-A-64-67571, cooling water is passed through the cooler of the condenser, heat source fluid is passed through the heaters of the evaporator and the generator, and the heat source fluid is passed from the absorber to the heater. An absorption heat pump is disclosed that draws a heated fluid at a temperature above . An absorption liquid pump is provided in the absorption liquid piping from the generator of the absorption heat pump to the absorber. In addition, a refrigerant liquid pump is installed in the refrigerant liquid piping from the condenser to the evaporator.
A refrigerant circulation pump is provided in the refrigerant liquid circulation pipe connected to the evaporator.

(ハ)発明が解決しようとする課題 上記従来の技術の吸収ヒートポンプにおいて、吸収液ポ
ンプ、冷媒液ポンプ及び冷媒循環ポンプはそれぞれ1個
である。このため、ポンプに過電流が流れトリップが発
生したり、ポンプの長期間の使用によって、ポンプの軸
受けが摩耗し、交換が必要になる場合があった。又、ポ
ンプの異物のかみ込みによるポンプのロックが発生して
ポンプが停止するおそれがあった。
(c) Problems to be Solved by the Invention In the conventional absorption heat pump described above, there is one absorption liquid pump, one refrigerant liquid pump, and one refrigerant circulation pump. As a result, an overcurrent may flow through the pump, causing it to trip, or when the pump is used for a long period of time, the bearings of the pump may wear out and require replacement. Furthermore, there is a risk that the pump may become locked due to foreign matter getting caught in the pump, causing the pump to stop.

上記のように吸収液ポンプ、冷媒液ポンプ或いは冷媒循
環ポンプが停止した場合には、吸収ヒートポンプ装置を
停止する必要がある。ところか、吸収ヒートポンプ装置
の場合、一般の空調機と異なり、例えば工場の生産過程
に使用されている場合が多く、吸収ヒートポンプを停止
することができない環境にあった。
When the absorption liquid pump, refrigerant liquid pump, or refrigerant circulation pump stops as described above, it is necessary to stop the absorption heat pump device. However, in the case of absorption heat pump devices, unlike general air conditioners, they are often used, for example, in the production process of factories, and are in environments where it is impossible to stop the absorption heat pump.

本発明は上記の問題に鑑み、1個のポンプが停止した場
合にも吸収ヒートポンプの運転継続させることを目的と
する。
In view of the above-mentioned problems, the present invention aims to continue operation of an absorption heat pump even when one pump stops.

(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、蒸発器(6)、吸
収器(5)、発生器(2)及び凝縮器(3〉を配管接続
して冷媒と吸収液との循環路を形成し、蒸発器(6)及
び発生器(2)に熱112iX流体を供給し、凝縮器(
3)に冷却水を流し、吸収器(5〉から熱源流体より高
い温度の被加熱流体を取出す吸収ヒートポンプにおいて
、発生器(2)から吸収器(5)に至る吸収液配管(1
3)の途中に複数個並列に配管接続された吸収液ポンプ
(8) 、 (31)と、吸収液ポンプ(8) 、 (
31)と吸収液ポンプ(8) 、 (31)に接続され
た吸収液配管(13) 、 (30)とに設けられた保
温装置(29) 、 (34)とを備え、吸収液ポンプ
(8) 、 (31)の運転を切換え、安定して温水を
供給すると共に、保温装置く29) 、 (34)によ
って吸収液の結晶を防止して運転を安定させることがで
きる吸収ヒートポンプ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 a system for connecting an evaporator (6), an absorber (5), a generator (2), and a condenser (3) with piping to and absorbing liquid, supplying heat 112iX fluid to the evaporator (6) and generator (2), and supplying the heat 112iX fluid to the condenser (6) and the generator (2).
In absorption heat pumps, cooling water flows through the absorber (5) and the heated fluid at a higher temperature than the heat source fluid is extracted from the absorber (5).
3), absorption liquid pumps (8), (31), which are connected in parallel with the pipes, and absorption liquid pumps (8), (3).
31) and absorption liquid pipes (13), (30) connected to the absorption liquid pumps (8), (31), and heat retention devices (29), (34) provided in the absorption liquid pumps (8), (31). To provide an absorption heat pump capable of stably supplying hot water by switching the operations of ) and (31), and preventing crystallization of the absorption liquid by using a heat-retaining device (29) and (34) to stabilize the operation. It is.

又、凝縮器(3)から蒸発器(6)に至る冷媒液配管(
11〉の途中に複数個並列に配管接続された冷媒液ポン
プ(9) 、 (39)と、冷媒液ポンプ(9) 、 
(39)及び冷媒液配管(11) 、 (3s>に設け
られた保温装置(37) 、 (42)とを備え、冷媒
液ポンプ(9) 、 (39)の運転を切換え、安定し
て温水を供給すると共に、保温装置(37) 、 (4
2)によって冷媒液の凍結を防止して運転を安定させる
ことができる吸収ヒートポンプを提供するものである。
In addition, the refrigerant liquid piping from the condenser (3) to the evaporator (6)
A plurality of refrigerant liquid pumps (9), (39) connected in parallel in the middle of the refrigerant liquid pump (9),
(39) and refrigerant liquid pipes (11), (3s>), the operation of the refrigerant liquid pumps (9), (39) can be switched to ensure stable hot water supply. In addition to supplying heat retention devices (37), (4
2) provides an absorption heat pump that can prevent refrigerant liquid from freezing and stabilize its operation.

さらに、蒸発器(6)に接続された冷媒液循環配管(1
2〉の途中に並列に配管接続された冷媒液循環ポンプ(
10) 、 (47)と、冷媒液循環ポンプ(10) 
、 (47)及び冷媒液循環配管(12) 、 (46
)に設けられた保温装置(45) 、 (50)とを備
え、冷媒液循環ポンプ(10) 、 (47)の運転を
切換え、安定して温水を供給すると共に、保温装置(4
,5) 、 (50)によって冷媒液の凍結を防止して
運転を安定させることができる吸収ヒートポンプを提供
するものである。
Furthermore, the refrigerant liquid circulation pipe (1) connected to the evaporator (6)
2) A refrigerant liquid circulation pump (
10), (47), and refrigerant liquid circulation pump (10)
, (47) and refrigerant liquid circulation piping (12), (46
), the operation of the refrigerant liquid circulation pumps (10) and (47) is switched to stably supply hot water, and the heat retention device (4
, 5) and (50) provide an absorption heat pump that can prevent freezing of the refrigerant liquid and stabilize its operation.

(木)作用 吸収液ポンプ(8)、冷媒液ポンプ(9〉及び冷媒液循
環ポンプ(10)が運転され、吸収ヒートポンプから温
水が供給きれているとき、吸収液ポンプ(8)、冷媒液
ポンプ(9)又は冷媒液循環ポンプ(10)が故障した
場合には、他の吸収液ポンプ(31)、冷媒液ポンプ(
39)又は冷媒液循環ポンプ(47)に運転が切換えら
れ、継続して温水を供給することができ、又、保温装置
(29) 、 (37)又は(45〉で、停止した吸収
液ポンプ(8)、冷媒液ポンプ(9)又は冷媒液循環ポ
ンプ(10)と、吸収液配管(13)、冷媒液配管(1
1)又は冷媒液循環管(12)を加熱し吸収液の結晶及
び冷媒液の凍結を防止することが可能になる。
(Thu) Function When the absorption liquid pump (8), refrigerant liquid pump (9) and refrigerant liquid circulation pump (10) are operated and hot water is completely supplied from the absorption heat pump, the absorption liquid pump (8), the refrigerant liquid pump (9) or refrigerant liquid circulation pump (10) fails, other absorption liquid pump (31), refrigerant liquid pump (
39) or the refrigerant liquid circulation pump (47) to continue supplying hot water, or the stopped absorption liquid pump (29), (37) or (45>) 8), refrigerant liquid pump (9) or refrigerant liquid circulation pump (10), absorption liquid piping (13), refrigerant liquid piping (1)
1) Alternatively, it is possible to prevent crystallization of the absorption liquid and freezing of the refrigerant liquid by heating the refrigerant liquid circulation pipe (12).

(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.

図面は本発明の第1の実施例を示し、吸収液に臭化リチ
ウム(LiBr)の水溶液を用い、冷媒に水を用いた吸
収冷凍機の回路構成図である。
The drawing shows a first embodiment of the present invention, and is a circuit diagram of an absorption refrigerator using an aqueous solution of lithium bromide (LiBr) as an absorption liquid and water as a refrigerant.

図面において、(1)は発生器(2)及び凝縮器(3)
を収納した下胴、(4)は吸収器(5)及び蒸発器(6
)を収納した上胴である。又、(7)は溶液熱交換器、
(8)は第1吸収液ポンプ、(9)は第1冷媒ポンプ、
(10)は第2冷媒循環ポンプである。そして、これら
の機器は冷媒液配管(11)、冷媒液循環配管(12)
、冷媒が分離して濃度が高くなった吸収液(以下濃液と
いう)が流れる濃液配管(13〉、冷媒を吸収して濃度
が低くなった吸収液(以下補液という)が流れる補液配
管(14)により気密に接続されている。そして、従来
のこの種の吸収ヒートポンプ(例えば特開昭58−13
8961号公報に説明されている吸収ヒートポンプ装置
を参照)と同様の冷媒と吸収液との循環路を構成してい
る。
In the drawing, (1) is a generator (2) and a condenser (3)
(4) houses the absorber (5) and evaporator (6).
) is the upper torso that houses it. In addition, (7) is a solution heat exchanger,
(8) is the first absorption liquid pump, (9) is the first refrigerant pump,
(10) is a second refrigerant circulation pump. These devices are refrigerant liquid piping (11) and refrigerant liquid circulation piping (12).
, Concentrated liquid piping (13) through which the absorption liquid (hereinafter referred to as concentrated liquid) whose concentration has become high due to the separation of the refrigerant flows, Replacement liquid piping (hereinafter referred to as replacement liquid) through which the absorption liquid whose concentration has become low after absorbing the refrigerant (hereinafter referred to as replacement liquid) flows. 14), and the conventional absorption heat pump of this type (for example, Japanese Patent Laid-Open No. 58-13
A refrigerant and absorption liquid circulation path similar to that of the absorption heat pump device described in Japanese Patent No. 8961 is configured.

(15)は発生器(2)の加熱器、(16)は凝縮器(
3)の冷却器、(17)は吸収器(5〉の被加熱器、(
18)は蒸発器(6)の加熱器である。(19)は加熱
器(15)に接続した熱源供給配管、(20)は冷却器
(16)に接続した冷却水配管、(21)は被加熱器<
17〉に接続し、温水や水蒸気なとの被加熱流体を流す
被加熱流体配管(以下温水配管という)、り22)は加
熱器(18)に接続した熱源供給配管である。そして、
熱源供給配管(19) 、 (22)には排温水又は排
蒸気なとの熱源流体が矢印で示したように流れる。(2
2A)は蒸発器(6)の出口側の熱源供給配管(22)
の途中に設けられた冷媒熱交換器であり、この熱交換器
(22A )によって凝縮器(3〉からの冷媒と蒸発器
(6)からの熱源流体とが熱交換し、冷媒液の温度は上
昇する。
(15) is the heater of the generator (2), (16) is the condenser (
3) cooler, (17) absorber (5> heated device, (17)
18) is a heater for the evaporator (6). (19) is the heat source supply pipe connected to the heater (15), (20) is the cooling water pipe connected to the cooler (16), and (21) is the heated device
A heated fluid pipe (hereinafter referred to as hot water pipe) connected to the heater (17) and flowing a heated fluid such as hot water or steam (hereinafter referred to as hot water pipe) is a heat source supply pipe connected to the heater (18). and,
A heat source fluid such as waste hot water or waste steam flows through the heat source supply pipes (19) and (22) as shown by the arrows. (2
2A) is the heat source supply pipe (22) on the outlet side of the evaporator (6)
This heat exchanger (22A) exchanges heat between the refrigerant from the condenser (3) and the heat source fluid from the evaporator (6), and the temperature of the refrigerant liquid is Rise.

(23)は抽気管(24)によって凝縮器(3)の気相
部に接続された油気装置、(23P)は抽気ポンプであ
る。そして、(25)は抽気用の濃液配管、(26)は
冷媒液と吸収液との熱交換器である。
(23) is an oil and gas device connected to the gas phase part of the condenser (3) by an air bleed pipe (24), and (23P) is an air bleed pump. Further, (25) is a concentrated liquid pipe for extracting air, and (26) is a heat exchanger between the refrigerant liquid and the absorption liquid.

(27) 、 (28)は第1吸収液ポンプ〈8)の吸
込側の吸収液管(13A)及び吐出側の吸収液管(13
B>に設けられた常開の止弁である。又、(29)は保
護装置であり、この保護装置(29)は止弁(27)と
止弁(28)との間の吸収液管(13A) 、 (13
B>及び第1吸収液ポンプ(8)を例えば蒸気によって
加熱する。そして、(29A)は蒸気入口、(29B)
は蒸気出口である。(30)は第1吸収液ポンプ(8)
の吸込側の吸収液管(13A)から吐出側の吸収液管(
13B>に至る吸収液配管である。(31)は吸収液配
管(30)の途中に設けられた第2吸収液ポンプであり
、この第2吸収液ポンプ(31〉と第1吸収液ポンプ(
8)とが並列に配管接続きれている。又、(32) 、
 (33)はそれぞれ第2吸収液ポンプ(31)の吸込
側の吸収液管(30A>及び吐出側の吸収液管(30B
)に設けられた止弁であり、止弁(32) 、 (33
)は通常の運転時に閉じられている。
(27) and (28) are the absorption liquid pipe (13A) on the suction side and the absorption liquid pipe (13A) on the discharge side of the first absorption liquid pump (8).
This is a normally open stop valve provided at B>. Moreover, (29) is a protection device, and this protection device (29) is an absorption liquid pipe (13A) between the stop valve (27) and the stop valve (28).
B> and the first absorption liquid pump (8) are heated, for example, with steam. And (29A) is the steam inlet, (29B)
is the steam outlet. (30) is the first absorption liquid pump (8)
From the absorption liquid pipe (13A) on the suction side to the absorption liquid pipe (13A) on the discharge side
13B> is the absorption liquid piping. (31) is a second absorption liquid pump installed in the middle of the absorption liquid piping (30), and this second absorption liquid pump (31>) and the first absorption liquid pump (
8) and are connected in parallel. Also, (32),
(33) are the absorption liquid pipe (30A) on the suction side and the absorption liquid pipe (30B) on the discharge side of the second absorption liquid pump (31), respectively.
) is a stop valve provided in the stop valve (32), (33
) are closed during normal operation.

(34)は例えば止弁(32)と止弁(33)との間の
吸収液配管(30A) 、 (30B)及び第2吸収液
ポンプ(31)を例えば蒸気によって加熱する保護装置
であり、(34A)は蒸気入口、(34B>は蒸気出口
である。
(34) is a protection device that heats the absorption liquid piping (30A), (30B) and the second absorption liquid pump (31) between the stop valve (32) and the stop valve (33) with, for example, steam; (34A) is a steam inlet, and (34B> is a steam outlet).

(35) 、 (36)は第1冷媒ポンプ(9)の吸込
側の冷媒液管(IIA)及び吐出側の冷媒液管(IIB
)に設けられた常開の止弁である。(37〉は止弁(3
5)と止弁(36)との間の冷媒液配管(11)及び第
1冷媒液ポンプ(9)を例えは蒸気によって加熱する保
護装置である。(38)は冷媒液管(IIA)から冷媒
液管(IIB)に至る冷媒液配管であり、(39)は冷
媒液配管(38)の途中に設けられた第2冷媒液ポンプ
である。そして、この第2冷媒液ポンプ(39)と第1
冷媒液ポンプ(9)とが並列に配管接続されている。(
40) 、 (41)はそれぞれ第2冷媒液ポンプ(3
9)の吸込側の冷媒液管(38A)及び吐出側の冷媒液
管(38B)に設けられた常閉の止弁である。(42)
は止弁(40)と止弁(41)との間の冷媒液配管(3
8)及び第2冷媒液ポンプ(39)を例えば蒸気によっ
て加熱する保護装置である。
(35) and (36) are the refrigerant liquid pipe (IIA) on the suction side and the refrigerant liquid pipe (IIB) on the discharge side of the first refrigerant pump (9).
) is a normally open stop valve. (37> is a stop valve (3
This is a protection device that heats the refrigerant liquid pipe (11) and the first refrigerant liquid pump (9) between the refrigerant liquid pipe (11) and the stop valve (36) using, for example, steam. (38) is a refrigerant liquid pipe extending from the refrigerant liquid pipe (IIA) to the refrigerant liquid pipe (IIB), and (39) is a second refrigerant liquid pump provided in the middle of the refrigerant liquid pipe (38). This second refrigerant liquid pump (39) and the first
A refrigerant liquid pump (9) is connected via piping in parallel. (
40) and (41) are the second refrigerant liquid pump (3
9) is a normally closed stop valve provided in the refrigerant liquid pipe (38A) on the suction side and the refrigerant liquid pipe (38B) on the discharge side. (42)
is the refrigerant liquid pipe (3) between the stop valve (40) and the stop valve (41).
8) and the second refrigerant liquid pump (39), for example, by steam.

(43) 、 (44)は第1冷媒液循環ポンプ(10
)の吸込側の冷媒液循環管(12A)及び吐出側の冷媒
液循環管(12B)に設けられた常開の止弁である。又
、(45)は止弁(43)と止弁(44)との間の冷媒
液循環管(12A) 、 (12B)及び第1冷媒液循
環ポンプ(10)を例えば蒸気によって加熱する保護装
置である。(46〉は第1冷媒液循環ポンプ(10)の
吸込側の冷媒液循環管(12A>から吐出側の冷媒液循
環管(12B)に至る冷媒液循環配管である。そして、
冷媒液循環配管(46〉の途中に第2冷媒液循環ポンプ
(47)が設けられている。又、(48) 、 (49
)は第2冷媒液循環ポンプ(47)の吸込側の冷媒液循
環管(46A)及び吐出側の冷媒液循環管(46B>に
設けられた常閉の止弁である。(50)は止弁(48)
と止弁(49)との間の冷媒液循環配管(46)と第2
冷媒液循環ポンプ(47)とを例えば蒸気によって加熱
する保護装置である。
(43) and (44) are the first refrigerant liquid circulation pump (10
) is a normally open stop valve provided in the refrigerant liquid circulation pipe (12A) on the suction side and the refrigerant liquid circulation pipe (12B) on the discharge side. Further, (45) is a protection device that heats the refrigerant liquid circulation pipes (12A), (12B) and the first refrigerant liquid circulation pump (10) between the stop valve (43) and the stop valve (44) with, for example, steam. It is. (46> is a refrigerant liquid circulation pipe that extends from the refrigerant liquid circulation pipe (12A) on the suction side of the first refrigerant liquid circulation pump (10) to the refrigerant liquid circulation pipe (12B) on the discharge side.
A second refrigerant liquid circulation pump (47) is provided in the middle of the refrigerant liquid circulation pipe (46>. Also, (48), (49)
) is a normally closed stop valve provided in the suction side refrigerant liquid circulation pipe (46A) and the discharge side refrigerant liquid circulation pipe (46B>) of the second refrigerant liquid circulation pump (47). (50) is a stop valve. Valve (48)
and the refrigerant liquid circulation pipe (46) between the stop valve (49) and the second
This is a protection device that heats the refrigerant liquid circulation pump (47) using, for example, steam.

上記のように構成された吸収ヒートポンプが運転されて
いるとき、例えば化学プラント、工場などの設備から蒸
発器(6)の加熱器(18)へ例えば98°Cの高温水
(熱源流体)が流れ、加熱器(18)で放熱する。そし
て、加熱器(18〉で温度が低下した例えば88°Cの
高温水が加熱器(18)から冷媒熱交換器(22A)へ
流れる。冷媒熱交換器(22A)では凝縮器(3)から
送られて来た例えば35℃の冷媒液が冷媒熱交換器(2
2A)にて加熱され温度が上昇し、例えば65°Cの冷
媒液が冷媒熱交換器(22A)から流出する。又、冷媒
熱交換器(22A)にて放熱し、例えば80°Cに温度
が低下した高温水が冷媒熱交換器(22A)から流出す
る。そして、吸収液ポンプ(8)から流れて来た濃液が
熱交換器(26)で冷媒液によって加熱きれて抽気装置
(23)へ送られる。そして、抽気装置(23)で濃液
によって不凝縮ガスの油気が行われる。又、第2吸収液
ポンプ(31)は運転を停止しているとともに、止弁(
32) 、 (33)は閉じている。そして、発生器(
2)から流出した濃液は実線矢印にて示したように吸収
器(5)へ流れる。又、第2冷媒液ポンプ(39)及び
第2冷媒液循環ポンプ(47)は運転を停止している。
When the absorption heat pump configured as described above is operated, high-temperature water (heat source fluid) of, for example, 98°C flows from equipment such as a chemical plant or factory to the heater (18) of the evaporator (6). , heat is radiated by a heater (18). Then, high-temperature water, for example, 88°C, whose temperature has been lowered in the heater (18), flows from the heater (18) to the refrigerant heat exchanger (22A). For example, the sent refrigerant liquid at 35°C is passed through the refrigerant heat exchanger (2
2A), the temperature rises, and the refrigerant liquid at, for example, 65°C flows out from the refrigerant heat exchanger (22A). Further, heat is radiated in the refrigerant heat exchanger (22A), and high-temperature water whose temperature has decreased to, for example, 80°C flows out from the refrigerant heat exchanger (22A). Then, the concentrated liquid flowing from the absorption liquid pump (8) is heated by the refrigerant liquid in the heat exchanger (26) and sent to the extraction device (23). Then, the non-condensable gas is removed by the concentrated liquid in an air extraction device (23). In addition, the second absorption liquid pump (31) has stopped operation, and the stop valve (
32) and (33) are closed. And the generator (
The concentrated liquid flowing out from 2) flows to the absorber (5) as shown by the solid arrow. Further, the second refrigerant liquid pump (39) and the second refrigerant liquid circulation pump (47) have stopped operating.

又、止弁(40) 、 (41)及び止弁(48) 、
 (49)は閉じている。さらに、吸収ヒートポンプの
運転時、廃熱である例えば98°Cの蒸気が各保護装置
(34) 、 (42)及び(45)に供給され、第2
吸収液ポンプ(31)、吸収液配管(30)、第2冷媒
液ポンプ(39)、冷媒液配管(38)、第2冷媒液循
環ポンプ(47)及び冷媒液循環配管(46)が蒸気に
よって加熱きれる。
Also, stop valves (40), (41) and stop valves (48),
(49) is closed. Furthermore, when the absorption heat pump is in operation, waste heat, such as steam at 98°C, is supplied to each of the protection devices (34), (42), and (45), and the second
The absorption liquid pump (31), the absorption liquid piping (30), the second refrigerant liquid pump (39), the refrigerant liquid piping (38), the second refrigerant liquid circulation pump (47), and the refrigerant liquid circulation piping (46) are It can be heated up.

上記のように吸収ヒートポンプが運転されているとき、
第1吸収液ポンプ(8)の例えば軸受け(図示せず)が
摩耗して故障した場合、例えば吸収ヒートポンプの管理
者が、第1吸収液ポンプ(8)の吸込側及び吐出側の止
弁(27) 、 (28)を閉とし、第1吸収液ポンプ
(8)を停止する。さらに、管理者は第1吸収液ポンプ
(8)と並列に配管接続された第2吸収液ポンプ(31
)の吸込側及び吐出側の止弁(32) 、 (33)を
開き、第2吸収液ポンプ(34)を運転きせる。ここで
、第1吸収液ポンプ(8)の軸受けの摩耗は例えばステ
ータ鉄心中に検出コイルを埋込み、検出フィルを直列に
接続し、検出フィルの出力を例えば指示計に出力し、管
理者が指示計を例えば定期的に検査して行う。又、止弁
(27) 、 (2g) 、 (32) 、 (33)
、第1吸収液ポンプ(8)及び第2吸収液ポンプ(31
)の制御装置(51)を設け、例えば軸受は摩耗が例え
ばo、smn以上で検出フィルの出力が例えばO,SV
以上になると、制御装置(51)が動作し、自動的に止
弁(27) 、 (28)を閉じ、第1吸収液ポンプ(
8〉を停止し、止弁(32) 。
When the absorption heat pump is operated as described above,
If, for example, the bearing (not shown) of the first absorption liquid pump (8) is worn out and breaks down, the administrator of the absorption heat pump, for example, may 27) and (28) are closed and the first absorption liquid pump (8) is stopped. Furthermore, the administrator also has a second absorption liquid pump (31) which is connected via piping in parallel with the first absorption liquid pump (8).
), the stop valves (32) and (33) on the suction side and discharge side are opened, and the second absorption liquid pump (34) is operated. Here, wear of the bearing of the first absorption liquid pump (8) can be detected by, for example, embedding a detection coil in the stator core, connecting detection filters in series, and outputting the output of the detection filter to, for example, an indicator. This is done, for example, by periodically inspecting the meter. Also, stop valve (27), (2g), (32), (33)
, the first absorption liquid pump (8) and the second absorption liquid pump (31
) control device (51) is provided, for example, when the wear of the bearing is more than o, smn, the output of the detection filter is e.g.
When this happens, the control device (51) operates to automatically close the stop valves (27) and (28), and the first absorption liquid pump (
8> and turn off the stop valve (32).

(33)を開き、第2吸収液ポンプ(31)を運転する
ようにしても良い。又、保護装置(29)に蒸気が供給
きれ第1吸収液ポンプ(8)及び吸収液管(13A) 
、 (13B)を加熱し、濃液の温度を結晶が発生する
温度より高い温度に維持する。又、第2吸収液ポンプ(
31〉に運転が切換った後に、第1吸収液ポンプ(8)
の交換、又は故障の修理が行われる。
(33) may be opened and the second absorption liquid pump (31) may be operated. In addition, when the steam is completely supplied to the protection device (29), the first absorption liquid pump (8) and the absorption liquid pipe (13A)
, (13B) and maintain the temperature of the concentrate above the temperature at which crystals form. In addition, the second absorption liquid pump (
After the operation is switched to 31>, the first absorption liquid pump (8)
will be replaced or malfunctions will be repaired.

又、吸収ヒートポンプの運転に伴い、第1冷媒液ポンプ
(9)、或いは第1冷媒液循環ポンプ(1o)が故障し
た場合にも、第1吸収液ポンプ(8)の故障のときと同
様に、止弁(35) 、 (36)或いは止弁(43)
 、 (44)を閉じ、第1冷媒液ポンプ(9)或いは
第1冷媒液循環ポンプ(10)を停止する。そして、止
弁(40) 、 (41)或いは止弁(4g) 、 (
49)を開き、第2冷媒液ポンプ(39)或いは第2冷
媒液循環ポンプ(47)を運転する。このため、冷媒液
が故障前と同様に循環し、吸収ヒートポンプが運転を継
続する。
Also, in the case that the first refrigerant liquid pump (9) or the first refrigerant liquid circulation pump (1o) breaks down during operation of the absorption heat pump, the same applies as in the case of a failure of the first absorption liquid pump (8). , stop valve (35), (36) or stop valve (43)
, (44) and stop the first refrigerant liquid pump (9) or the first refrigerant liquid circulation pump (10). And stop valve (40), (41) or stop valve (4g), (
49) and operate the second refrigerant liquid pump (39) or the second refrigerant liquid circulation pump (47). Therefore, the refrigerant liquid circulates as before the failure, and the absorption heat pump continues to operate.

又、保護装置(37) 、 (45)に蒸気が供給され
、第1冷媒ポンプ(9)或いは第1冷媒液循環ポンプ(
10)、冷媒液配管(11)或いは冷媒液循環配管(1
2)が加熱され、保温され外気温度が例えば0℃以下に
なった場合にも冷媒液の凍結が回避される。ここで、保
護装置(29) 、 (37)及び(45)は蒸気によ
って加熱されたが、保護装置(29) 、 (37)及
び(45)が例えばヒータであり、ヒータへ通電して加
熱した場合にも、吸収液の結晶及び冷媒液の凍結は回避
きれる。
In addition, steam is supplied to the protection devices (37) and (45), and the first refrigerant pump (9) or the first refrigerant liquid circulation pump (
10), refrigerant liquid piping (11) or refrigerant liquid circulation piping (1)
2) is heated and kept warm, and freezing of the refrigerant liquid is avoided even when the outside air temperature drops to, for example, 0° C. or lower. Here, the protective devices (29), (37), and (45) were heated by steam, but the protective devices (29), (37), and (45) were, for example, heaters, and were heated by supplying electricity to the heaters. In this case, crystals of the absorption liquid and freezing of the refrigerant liquid can be avoided.

上記本発明の実施例によれば、吸収ヒートポンプの第1
吸収液ポンプ(8)、第1冷媒液ポンプ(9)、或いは
第1冷媒液循環ポンプ(10)が故障した場合には、故
障したポンプの吸込側及び吐出側の止弁を閉じるととも
に、ポンプを停止する。そして、故障したポンプと並列
に配管接続された第2吸収液ポンプ(31)の吸込側及
び吐出側の止弁(32) 、 (33)を開き、第2吸
収液ポンプ(31)を運転すルコとによって、吸収ヒー
トポンプの運転を短時間で復帰させることができ、この
結果、生産プロセスへの影響を最小限に抑えることがで
きる。
According to the above embodiment of the present invention, the first
If the absorption liquid pump (8), the first refrigerant liquid pump (9), or the first refrigerant liquid circulation pump (10) fails, close the stop valves on the suction side and discharge side of the failed pump, and close the stop valves on the suction side and discharge side of the failed pump. stop. Then, open the stop valves (32) and (33) on the suction side and discharge side of the second absorption liquid pump (31), which is connected via piping in parallel with the failed pump, to operate the second absorption liquid pump (31). This allows the absorption heat pump to resume operation in a short period of time, and as a result, the impact on the production process can be minimized.

又、第1吸収液ポンプ(8)及び吸収液管(13A) 
In addition, the first absorption liquid pump (8) and absorption liquid pipe (13A)
.

(13B)は保護装置(29〉によって加熱され、第1
吸収液ポンプ(8)及び吸収液管(13A) 、 (1
3B)に残っている濃液の結晶を回避することができ、
この結果、吸収ヒートポンプの運転を安定させることが
できる。
(13B) is heated by the protection device (29>) and the first
Absorption liquid pump (8) and absorption liquid pipe (13A), (1
It is possible to avoid the crystals of the concentrated liquid remaining in 3B),
As a result, the operation of the absorption heat pump can be stabilized.

又、第1冷媒液ポンプ(9〉が故障したときには、第1
冷媒液ポンプ(9)の代わりに第2冷媒液ポンプ(39
)を運転し、第1冷媒液循環ポンプ(10)が故障した
ときには、第2冷媒液循環ポンプ(47)を運転するこ
とによって、吸収ヒートポンプの運転を短時間で復帰き
せることができ、この結果、ポンプの故障による温水供
給への影響、例えば生産プロセスへの影響を最小限に抑
えることかできる。又、停止した第1冷媒液ポンプ(9
)或いは第1冷媒液循環ポンプ(10)を保護装置(3
7) 、 (45>によって加熱するとともに、冷媒液
管(IIA) 、 (ttB)或いは冷媒液循環管(1
2A) 、 (12B>を保護装置(37) 、 (4
5)によって加熱することによって外気温度の低下時な
どに冷媒液が凍結することを防止でき、この結果、凍結
による各ポンプ、冷媒液管、或いは冷媒液循環管の破損
を回避することができる。
In addition, when the first refrigerant liquid pump (9) fails, the first refrigerant pump (9)
A second refrigerant liquid pump (39) is used instead of the refrigerant liquid pump (9).
), and when the first refrigerant liquid circulation pump (10) fails, by operating the second refrigerant liquid circulation pump (47), the operation of the absorption heat pump can be restored in a short time. , the impact on hot water supply due to pump failure, such as the impact on production processes, can be minimized. In addition, the first refrigerant liquid pump (9
) or the first refrigerant liquid circulation pump (10) with a protection device (3
7), (45>) and the refrigerant liquid pipe (IIA), (ttB) or refrigerant liquid circulation pipe (1
2A), (12B>, protective device (37), (4
By heating according to 5), the refrigerant liquid can be prevented from freezing when the outside temperature drops, and as a result, damage to each pump, refrigerant liquid pipe, or refrigerant liquid circulation pipe due to freezing can be avoided.

尚、上記実施例において、第2吸収液ポンプ(31)、
第2冷媒液ポンプ(39)、及び第2冷媒液循環ポンプ
(47)を配管接続した吸収ヒートポンプについて説明
したが、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1吸収液ポンプ(8)と第2吸収液ポンプ(
31)とを並列に配管接続した吸収ヒートポンプ、又は
第1冷媒液ポンプ(9)と第2冷媒液ポンプ(39)と
を並列に配管接続した吸収ヒートポンプ、又は第1冷媒
液循環ポンプ(10)と第2冷媒液循環ポンプ(47)
とを並列に配管接続した吸収ヒートポンプ、第1吸収液
ポンプ(8)と第2吸収液ポンプ(31)とを並列に配
管接続するとともに、第1冷媒液ポンプ(9)と第2冷
媒液ポンプ(39)とを並列に配管接続した吸収ヒート
ポンプ、第1吸収液ポンプ(8)と第2吸収液ボンブク
31)とを並列に配管接続するとともに、第1冷媒液循
環ポンプ(10)と第2冷媒液循環ポンプ(47)とを
並列に配管接続した吸収ヒートポンプ、或いは、第1冷
媒液ポンプ(9)と第2冷媒液ポンプ(39)とを並列
に配管接続するとともに、第1冷媒液循環ポンプ(10
)と第1冷媒液循環ポンプ(47)とを並列に配管接続
した吸収ヒートポンプにおいても、第1吸収液ポンプ(
8〉、第1冷媒液ポンプ(9)、或いは第1冷媒液循環
ポンプ(10)が故障した場合に、第2吸収液ポンプ(
31)、第2冷媒液ポンプ(39)、或いは第2冷媒液
循環ポンプ(47)に運転を切換えるとともに、故障し
たポンプに設けられた保護装置によってポンプ及び配管
を加熱することによって上記実施例と同様の作用効果を
得ることができる。
In addition, in the above embodiment, the second absorption liquid pump (31),
Although an absorption heat pump in which the second refrigerant liquid pump (39) and the second refrigerant liquid circulation pump (47) are connected via piping has been described, the present invention is not limited to the above embodiments, and for example, the first absorption liquid pump (8) and the second absorption liquid pump (
31), or an absorption heat pump in which a first refrigerant liquid pump (9) and a second refrigerant liquid pump (39) are connected in parallel through piping, or a first refrigerant liquid circulation pump (10). and second refrigerant liquid circulation pump (47)
An absorption heat pump in which a first absorption liquid pump (8) and a second absorption liquid pump (31) are connected in parallel through piping, and a first refrigerant liquid pump (9) and a second refrigerant liquid pump (39) are connected in parallel by piping, a first absorption liquid pump (8) and a second absorption liquid pump (31) are connected in parallel by piping, and a first refrigerant liquid circulation pump (10) and a second An absorption heat pump in which a refrigerant liquid circulation pump (47) is connected in parallel with the piping, or a first refrigerant liquid pump (9) and a second refrigerant liquid pump (39) are connected in parallel with the piping, and the first refrigerant liquid circulation pump Pump (10
) and the first refrigerant liquid circulation pump (47) are connected in parallel via piping.
8> If the first refrigerant liquid pump (9) or the first refrigerant liquid circulation pump (10) fails, the second absorption liquid pump (
31), by switching the operation to the second refrigerant liquid pump (39) or the second refrigerant liquid circulation pump (47) and heating the pump and piping by the protection device installed in the failed pump. Similar effects can be obtained.

(ト)発明の効果 本発明は以上のように構成された吸収ヒートポンプであ
り、発生器から吸収器に至る吸収液配管の途中に複数個
並列に吸収液ポンプを配管接続し、これらの吸収液ポン
プと吸収液ポンプに配管接続された吸収液配管とに保温
装置を設けたので、運転中の吸収液ポンプが故障した場
合などに、他の吸収液ポンプに運転を切換え吸収ヒート
ポンプの運転を継続することができ、安定して温水を供
給することができ、又、保護装置による加熱により濃液
が配管内又は吸収液ポンプ内で結晶することを防止でき
、吸収ヒートポンプの運転を一層安定きせることができ
る。
(G) Effects of the Invention The present invention is an absorption heat pump configured as described above, in which a plurality of absorption liquid pumps are connected in parallel in the middle of the absorption liquid piping from the generator to the absorber, and these absorption liquid pumps are connected in parallel. A heat insulating device is installed between the pump and the absorption liquid piping connected to the absorption liquid pump, so if the absorption liquid pump in operation breaks down, operation can be switched to another absorption liquid pump and the absorption heat pump can continue operating. It is possible to stably supply hot water, and it is also possible to prevent the concentrated liquid from crystallizing in the piping or the absorption liquid pump due to heating by the protection device, thereby making the operation of the absorption heat pump more stable. I can do it.

又、凝縮器から蒸発器に至る冷媒液配管に複数個の冷媒
液ポンプを並列に配管接続し、冷媒液ポンプと冷媒液配
管とに保護装置を設けた場合、或いは蒸発器に配管接続
された冷媒液循環配管に複数個の冷媒液循環ポンプを並
列に配管接続し、冷媒液循環ポンプと冷媒液循環配管と
に保護装置を設けた場合にも、運転中の冷媒液ポンプ或
いは冷媒液循環ポンプが故障した場合などに、他の冷媒
液ポンプ或いは冷媒液循環ポンプに運転を切換え、吸収
ヒートポンプの運転を継続することができ、安定して温
水を供給することができ、又、保護装置による加熱によ
り、冷媒液が凍結することを回避でき、吸収ヒートポン
プの運転を一層安定させることができる。
In addition, if multiple refrigerant liquid pumps are connected in parallel to the refrigerant liquid piping from the condenser to the evaporator, and a protection device is installed on the refrigerant liquid pumps and the refrigerant liquid piping, or if the piping is connected to the evaporator. Even if multiple refrigerant liquid circulation pumps are connected in parallel to the refrigerant liquid circulation piping and a protection device is installed on the refrigerant liquid circulation pump and the refrigerant liquid circulation piping, the refrigerant liquid pump or refrigerant liquid circulation pump during operation If the refrigerant pump or refrigerant circulation pump breaks down, the operation can be switched to another refrigerant liquid pump or refrigerant liquid circulation pump, and the operation of the absorption heat pump can be continued, making it possible to stably supply hot water. Therefore, freezing of the refrigerant liquid can be avoided, and the operation of the absorption heat pump can be further stabilized.

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

図面は本発明の一実施例を示す吸収ヒートポンプの回路
構成図である。 (2)・・・発生器、 (3)・・・凝縮器、 (5)
・・・吸収器、 (6)・・・蒸発器、 (8) 、 
(31)・・・吸収液ポンプ、 (9) 、 (39)
・・・冷媒液ポンプ、 <10) 、 (47)・・・
冷媒液循環ポンプ、 (11) 、 (38)・・・冷
媒液配管、 (12) 、 (46>・・・冷媒液循環
配管、 (13) 、 (30)・・・吸収液配管、 
(29) 、 <34) 、 (37) 、 (42)
 、 (45) 、 (50)・・・保温装置。
The drawing is a circuit configuration diagram of an absorption heat pump showing an embodiment of the present invention. (2)...generator, (3)...condenser, (5)
...absorber, (6) ...evaporator, (8),
(31)...absorption liquid pump, (9), (39)
...refrigerant liquid pump, <10), (47)...
Refrigerant liquid circulation pump, (11), (38)... Refrigerant liquid piping, (12), (46>... Refrigerant liquid circulation piping, (13), (30)... Absorption liquid piping,
(29) , <34) , (37) , (42)
, (45), (50)...heat retention device.

Claims (1)

【特許請求の範囲】 1、蒸発器、吸収器、発生器及び凝縮器を配管接続して
冷媒と吸収液との循環路を形成し、蒸発器及び発生器に
熱源流体を供給し、凝縮器に冷却水を流し、吸収器から
熱源流体より高い温度の被加熱流体を取出す吸収ヒート
ポンプにおいて、発生器から吸収器に至る吸収液配管の
途中に複数個並列に配管接続された吸収液ポンプと、こ
れらの吸収液ポンプと吸収液ポンプに接続された吸収液
配管とに設けられた保温装置とを備えたことを特徴とす
る吸収ヒートポンプ。 2、蒸発器、吸収器、発生器及び凝縮器を配管接続して
冷媒と吸収液との循環路を形成し、蒸発器及び発生器に
熱源流体を供給し、凝縮器に冷却水を流し、吸収器から
熱源流体より高い温度の被加熱流体を取出す吸収ヒート
ポンプにおいて、凝縮器から蒸発器に至る冷媒液配管の
途中に複数個並列に配管接続された冷媒液ポンプと、こ
れらの冷媒液ポンプと冷媒液ポンプに接続された冷媒液
配管とに設けられた保温装置とを備えたことを特徴とす
る吸収ヒートポンプ。 3、蒸発器、吸収器、発生器及び凝縮器を配管接続して
冷媒と吸収液との循環路を形成し、蒸発器及び発生器に
熱源流体を供給し、凝縮器に冷却水を流し、吸収器から
熱源流体より高い温度の被加熱流体を取出す吸収ヒート
ポンプにおいて、蒸発器に接続された冷媒液循環配管の
途中に複数個並列に配管接続された冷媒液循環ポンプと
、これらの冷媒液循環ポンプと冷媒液循環ポンプに接続
された冷媒液循環配管とに設けられた保温装置とを備え
たことを特徴とする吸収ヒートポンプ。
[Claims] 1. The evaporator, absorber, generator, and condenser are connected via piping to form a circulation path for refrigerant and absorption liquid, supplying heat source fluid to the evaporator and generator, and connecting the condenser to the condenser. In an absorption heat pump that supplies a heated fluid with a temperature higher than that of the heat source fluid from the absorber by flowing cooling water through the absorber, a plurality of absorption liquid pumps are connected in parallel in the middle of the absorption liquid piping from the generator to the absorber; An absorption heat pump characterized by comprising the above absorption liquid pump and a heat retention device provided in the absorption liquid piping connected to the absorption liquid pump. 2. Connect the evaporator, absorber, generator, and condenser with piping to form a circulation path for refrigerant and absorption liquid, supply heat source fluid to the evaporator and generator, and flow cooling water to the condenser. In an absorption heat pump that extracts a heated fluid at a higher temperature than the heat source fluid from an absorber, there are multiple refrigerant liquid pumps connected in parallel in the middle of the refrigerant liquid piping from the condenser to the evaporator, and these refrigerant liquid pumps. An absorption heat pump characterized by comprising: a refrigerant liquid pipe connected to a refrigerant liquid pump; and a heat retention device provided in the refrigerant liquid pump. 3. Connect the evaporator, absorber, generator, and condenser with piping to form a circulation path for refrigerant and absorption liquid, supply heat source fluid to the evaporator and generator, and flow cooling water to the condenser. In an absorption heat pump that extracts a heated fluid at a higher temperature than the heat source fluid from an absorber, there are multiple refrigerant liquid circulation pumps connected in parallel in the middle of the refrigerant liquid circulation piping connected to the evaporator, and these refrigerant liquid circulation pumps. An absorption heat pump characterized by comprising a heat retention device provided in a pump and a refrigerant liquid circulation pipe connected to a refrigerant liquid circulation pump.
JP30033690A 1990-11-05 1990-11-05 Absorption heat pump Expired - Fee Related JP2854121B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30033690A JP2854121B2 (en) 1990-11-05 1990-11-05 Absorption heat pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30033690A JP2854121B2 (en) 1990-11-05 1990-11-05 Absorption heat pump

Publications (2)

Publication Number Publication Date
JPH04174263A true JPH04174263A (en) 1992-06-22
JP2854121B2 JP2854121B2 (en) 1999-02-03

Family

ID=17883547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30033690A Expired - Fee Related JP2854121B2 (en) 1990-11-05 1990-11-05 Absorption heat pump

Country Status (1)

Country Link
JP (1) JP2854121B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007127342A (en) * 2005-11-04 2007-05-24 Ebara Corp Absorption heat pump and steam supply system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102346787B1 (en) * 2021-05-10 2022-01-04 (주)씨엔에이치엔지니어링 Absorption chiller with integrated pulse control inverter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007127342A (en) * 2005-11-04 2007-05-24 Ebara Corp Absorption heat pump and steam supply system

Also Published As

Publication number Publication date
JP2854121B2 (en) 1999-02-03

Similar Documents

Publication Publication Date Title
US4633676A (en) Cooling and heating apparatus
US3137144A (en) Level control and fail safe arrangement for absorption refrigeration systems
US4445340A (en) Dilution cycle control for an absorption refrigeration system
US7065976B2 (en) Control logic for maintaining proper solution concentration in an absorption chiller in co-generation applications
JPH04174263A (en) Absorption heat pump
SE464667B (en) HEAT PUMP INSTALLATION FOR HEATING OR COOLING THE SPACES AND HEATING OF THE TAPP HEAT WATER
JP3056987B2 (en) Absorption cooling system
JP2002156493A (en) Site heat supply equipment of nuclear power station
KR20030078703A (en) Absorption type refrigerator
JPS6341789A (en) Separate type waste heat recovering system
KR101559728B1 (en) Cogeneration Plant Cooling System
JPH03194368A (en) Method and apparatus for controlling operation of absorption type water cooling and heating machine
JPS60144569A (en) Controller for operation of air conditioner
CN107044730A (en) Low-temperature air source heat pump preparing high-temp hot water facility
JPH0222311B2 (en)
JP3280085B2 (en) Operation control method in absorption refrigerator
JPS63176965A (en) Double effect air-cooling type water chiller and heater
JP3056990B2 (en) Absorption air conditioner
JP2994250B2 (en) Absorption air conditioner
TWI554735B (en) Heat exchange system with automatic defrost function
JPS6144262A (en) Absorption heat pump device
JPH0658651A (en) Automatic cooling or heating changing-over operating method for gas absorption type cold water/hot water feeding equipment
JPH04169764A (en) Absorption heat pump
JPH07218024A (en) Absorption type chilled and warm water generator
JPH0621742B2 (en) Absorption heat pump device

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees