JPS58158464A - Controller for absorption refrigerator - Google Patents
Controller for absorption refrigeratorInfo
- Publication number
- JPS58158464A JPS58158464A JP4185882A JP4185882A JPS58158464A JP S58158464 A JPS58158464 A JP S58158464A JP 4185882 A JP4185882 A JP 4185882A JP 4185882 A JP4185882 A JP 4185882A JP S58158464 A JPS58158464 A JP S58158464A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- solution
- regenerator
- outlet
- pressure regenerator
- 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.)
- Pending
Links
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
ある。従来の吸収冷凍機制御装置の一例を第1図に基い
て説明する。なお、第1図に示すものは二重効用吸収冷
凍機で冷媒に水.吸収剤(溶液)にリチウムブロマイド
水溶液を使用したものである。[Detailed Description of the Invention] Yes. An example of a conventional absorption refrigerator control device will be explained based on FIG. 1. The one shown in Figure 1 is a double-effect absorption refrigerator that uses water as the refrigerant. A lithium bromide aqueous solution is used as the absorbent (solution).
図において.1は高圧再生器,2は低圧再生器。In the figure. 1 is a high pressure regenerator, 2 is a low pressure regenerator.
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乃至13は溶液配管,14は
再生器ポンプ,15は吸収器ポンプ, 16はエゼク
ター,17乃至19は冷媒配管。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 to 13 are solution pipes, 14 is a regenerator pump, 15 is an absorber pump, 16 is a Ejectors 17 to 19 are refrigerant pipes.
20は冷媒ボ/グ,21は加熱源配管,22は冷却水配
管,23は冷水配管.24は冷却水ポンプであり,図示
のように配管接続され,高圧再生器1で蒸発した冷媒は
,低圧再生器2を経て凝縮器3に入り,冷却水配管22
内の水と熱交換して凝縮液化した後,蒸発器4に入り冷
水配管23内の水と熱交換して蒸発し,この際に奪う熱
によって冷水配管23内の水を冷却する。20 is a refrigerant tank, 21 is a heating source pipe, 22 is a cooling water pipe, and 23 is a cold water pipe. 24 is a cooling water pump, which is connected to the piping as shown in the figure, and the refrigerant evaporated in the high-pressure regenerator 1 passes through the low-pressure regenerator 2, enters the condenser 3, and enters the cooling water piping 22.
After condensing and liquefying by exchanging heat with the water inside, the water enters the evaporator 4 and exchanges heat with the water in the cold water pipe 23 to evaporate, and the heat removed at this time cools the water in the cold water pipe 23.
一方,蒸発器4で蒸発した冷媒は,吸収器5で溶液によ
り吸収され,冷媒を吸収して濃度の薄くなった溶液はポ
ンプl4により低温熱交換器6。On the other hand, the refrigerant evaporated in the evaporator 4 is absorbed by a solution in the absorber 5, and the solution, which has absorbed the refrigerant and has become diluted in concentration, is transferred to a low-temperature heat exchanger 6 by a pump l4.
高温熱交換器7を経て高圧再生器1に入り,ここで、加
熱源配管21を経て供給される加熱源によって加熱され
,冷媒を蒸発分離して中濃度の溶液となり,高温熱交換
器7を経て低圧再生器2に入り冷媒蒸気により加熱され
て,さらに冷媒を蒸発分離して濃度が高くなる。低圧再
生器で高濃度となった溶液は、低温熱交換器6を経てエ
ゼクタ−16で吸収器ポンプ15からの溶液と混合して
吸収器5内に散布されるようになっており、冷凍サイク
ルを行う。It enters the high-pressure regenerator 1 through the high-temperature heat exchanger 7, where it is heated by a heat source supplied through the heat source piping 21, evaporates and separates the refrigerant, and becomes a medium-concentration solution, which passes through the high-temperature heat exchanger 7. The refrigerant then enters the low-pressure regenerator 2 where it is heated by refrigerant vapor, and the refrigerant is further evaporated and separated, increasing its concentration. The solution that has become highly concentrated in the low-pressure regenerator passes through the low-temperature heat exchanger 6, mixes with the solution from the absorber pump 15 in the ejector 16, and is sprayed into the absorber 5. I do.
上記のような二重効用吸収冷凍機においては従来、冷水
出口温度検出器25で、冷水出口温度を検出し、これと
温度設定器26に設定された冷水出口温度目標値とを比
較器27で比較し、流量調節器28を介して流量調節弁
29を制御して加熱源の流量を調節すると共に高圧再生
器lの溶液レベルを液位検出器30で検出し、これと液
位設定器31に設定された液位目標値とを比較器32で
比較し、循環量調節器33を介して循環量調節弁34を
制御して溶液の循環量を制御することによって、負荷に
適応するよう機械の容量を制御している。Conventionally, in the above-described dual-effect absorption refrigerator, a chilled water outlet temperature detector 25 detects the chilled water outlet temperature, and a comparator 27 compares this with a chilled water outlet temperature target value set in a temperature setting device 26. In comparison, the flow rate control valve 29 is controlled via the flow rate regulator 28 to adjust the flow rate of the heating source, and the level of the solution in the high-pressure regenerator 1 is detected by the level detector 30. The comparator 32 compares the liquid level with the liquid level target value set at It controls the capacity of
しかし、上記のような制御装置では溶液循環量は高圧再
生器内の液位レベルの監視に用いているだけで、効率の
制御を行なっていないため。However, in the above-mentioned control device, the amount of solution circulation is only used to monitor the liquid level in the high-pressure regenerator, and the efficiency is not controlled.
部分負荷での効率が悪くなるので問題があった。There was a problem because efficiency at partial loads deteriorated.
本発明は上記した点に鑑み提案されたもので。The present invention has been proposed in view of the above points.
その目的とするところは1部分負荷での効率の向上を計
ることのできる吸収冷凍機制御装置を提供しようとする
ものである。The purpose is to provide an absorption chiller control device that can improve efficiency under one partial load.
本発明は、再生器の加熱源量を再生器出口溶液温度を検
出して制御する制御系と、吸収器から再生器への溶液循
環量を冷水出口温度を検出して制御する制御系とを備え
たことを特徴とするもので負荷に対応して冷水出口温度
が昇降すると、これを検出して溶液循環量が制御され、
溶液循muが増減されると、これに伴って再生器出口溶
液温度が変化するが、加熱源量を制御して溶液温度を一
定に制御することができるため。The present invention includes a control system that controls the amount of heat source in the regenerator by detecting the regenerator outlet solution temperature, and a control system that controls the amount of solution circulating from the absorber to the regenerator by detecting the cold water outlet temperature. When the cold water outlet temperature rises or falls in response to the load, this is detected and the solution circulation amount is controlled.
When the solution circulation mu is increased or decreased, the solution temperature at the outlet of the regenerator changes accordingly, but the solution temperature can be kept constant by controlling the amount of heating source.
溶液温度を高い状態に保持して運転できる。再生器出口
溶液温度は上限値を越えない範囲で。It can be operated while maintaining the solution temperature in a high state. The temperature of the solution at the outlet of the regenerator must not exceed the upper limit.
高い程効率がよく、従って上記の如く再生器出口溶液温
度を高い状態で運転することによって特に部分負荷での
効率の向上を計ることができ。The higher the temperature, the better the efficiency. Therefore, by operating the regenerator at a high outlet solution temperature as described above, efficiency can be improved especially at partial loads.
しかも、溶液温度の過度な上昇を防止して安定した運転
を行なうことができる。In addition, stable operation can be achieved by preventing excessive rise in solution temperature.
以下1本発明を図示実施例に基いて説明する。The present invention will be explained below based on illustrated embodiments.
第2図において、l乃至24は第1図に示した従来のも
のと同様のものであり、同様の作用により冷凍サイクル
を行うようになっている。In FIG. 2, numerals 1 to 24 are the same as the conventional one shown in FIG. 1, and the refrigeration cycle is performed by the same function.
本実施例においては、冷水出口温度検出器101を設け
て冷水出口温度を検出し、これと温度設定器102に設
定された設定値とを比較器103で比較し、コン)o−
ラ104を介して溶液循環量調節弁105を制御し、吸
収器5から高圧再生器lへ循環される溶液の循環量を制
御するようにすると共に高圧再生器1の溶液出口に溶液
温度検出器106を設けて、高圧再生器出口溶液温度を
検出し、これと温度設定器107に設定された設定値と
を比較器10Bで比較し、コントローラ109を介して
加熱源量調節弁110を制御し、高圧再生器1への加熱
源量を制御するように構成している。In this embodiment, a chilled water outlet temperature detector 101 is provided to detect the chilled water outlet temperature, and a comparator 103 compares this with the set value set in the temperature setting device 102.
A solution circulation amount regulating valve 105 is controlled via a valve 104 to control the amount of solution circulated from the absorber 5 to the high pressure regenerator 1, and a solution temperature sensor is installed at the solution outlet of the high pressure regenerator 1. 106 is provided to detect the high pressure regenerator outlet solution temperature, compare this with the set value set in the temperature setting device 107 by the comparator 10B, and control the heating source amount control valve 110 via the controller 109. , the amount of heat source supplied to the high-pressure regenerator 1 is controlled.
上記構成において、負荷が小さくなって検出器101に
て検出した冷水出口温度が設定値より低くなると、コン
トローラ104への入力は負となり、その出力が減少し
て、溶液循環量を減少させ、冷水出口温Itが一定とな
るよう作用する。In the above configuration, when the load decreases and the cold water outlet temperature detected by the detector 101 becomes lower than the set value, the input to the controller 104 becomes negative, its output decreases, and the amount of solution circulated is reduced. It acts to keep the outlet temperature It constant.
一方、浴液循環黛が減少するとこの減少量に対応して高
圧再生器1の出口溶液温度は上昇するが、検出器106
により検出した温度が設定値よす高くなると、コントロ
ーラ109への入力は負となり、その出力は減少し、高
圧再生器1への加熱源tを減少させて高圧再生器1内の
出口溶液@度を一定にするよう制御する。ここで、高圧
再生器lの出口溶液温度は、上限値を越えない範囲で、
高い程効率が良く、上記の如く負荷に対応して、高圧再
生器1の出口溶液温度を高い状6に保持して運転するこ
とができるため。On the other hand, when the bath liquid circulation decreases, the outlet solution temperature of the high-pressure regenerator 1 increases correspondingly to the amount of decrease, but the detector 106
When the detected temperature increases above the set point, the input to the controller 109 becomes negative and its output decreases, reducing the heating source t to the high pressure regenerator 1 and reducing the outlet solution in the high pressure regenerator 1. control to keep it constant. Here, the outlet solution temperature of the high pressure regenerator 1 is within the range of not exceeding the upper limit.
The higher the temperature, the better the efficiency, and as mentioned above, the outlet solution temperature of the high-pressure regenerator 1 can be maintained at a high level 6 in response to the load.
特に部分負荷での効率の向上を計ることができる。In particular, efficiency can be improved under partial loads.
また、高干再生器出口溶液温度の過度な上昇を防止する
ことができるため、安定した運転を行なうことができる
。Furthermore, since it is possible to prevent the temperature of the solution at the outlet of the high-dry regenerator from rising excessively, stable operation can be performed.
第1図は従来のものを示す構成図、第2図は本発明の一
実施例を示す構成図である。
1:高圧再生器、2:低圧再生器、3:凝縮器。
4:蒸発器、5:吸収器、6:低温熱交換器。
7:高温熱交換器、8乃至13:溶液配管、14:再生
器ポンプ、15:吸収器ボ/グ、16:エゼクター、1
7乃至19:冷媒配管、20:冷媒ボ/プ、21:、加
熱源配管、22:冷却水配管、23:冷水配管、24:
冷却水ポンプ、 101 :冷水出口温度検出器、
102 :温度設定器、 103 :比較器。
104;コントローラ、 105 :溶液循環量調節
升。
106:高圧再生器出口溶液温度検出器、 107
:温度設定器、108:比較器、 109 :コノト
ローラ、110:加熱源量調節升FIG. 1 is a configuration diagram showing a conventional one, and FIG. 2 is a configuration diagram showing an embodiment of the present invention. 1: High pressure regenerator, 2: Low pressure regenerator, 3: Condenser. 4: Evaporator, 5: Absorber, 6: Low temperature heat exchanger. 7: High temperature heat exchanger, 8 to 13: Solution piping, 14: Regenerator pump, 15: Absorber box, 16: Ejector, 1
7 to 19: Refrigerant piping, 20: Refrigerant pipe, 21: Heat source piping, 22: Cooling water piping, 23: Chilled water piping, 24:
Cooling water pump, 101: Cold water outlet temperature detector,
102: Temperature setting device, 103: Comparator. 104; Controller; 105: Solution circulation amount adjustment cell. 106: High pressure regenerator outlet solution temperature detector, 107
: Temperature setting device, 108: Comparator, 109: Conotrol, 110: Heat source amount adjustment box
Claims (1)
する制御系と、吸収器から再生器への溶液循環量を冷水
出口温度を検出して制御する制御系とを備えたことを特
徴とする吸収冷凍機制御装置。A control system that controls the amount of heat source of the regenerator by detecting the temperature of the solution at the outlet of the regenerator, and a control system that controls the amount of solution circulating from the absorber to the regenerator by detecting the temperature of the cold water outlet. Characteristic absorption chiller control device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4185882A JPS58158464A (en) | 1982-03-17 | 1982-03-17 | Controller for absorption refrigerator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4185882A JPS58158464A (en) | 1982-03-17 | 1982-03-17 | Controller for absorption refrigerator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58158464A true JPS58158464A (en) | 1983-09-20 |
Family
ID=12619941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4185882A Pending JPS58158464A (en) | 1982-03-17 | 1982-03-17 | Controller for absorption refrigerator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58158464A (en) |
-
1982
- 1982-03-17 JP JP4185882A patent/JPS58158464A/en active Pending
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