JPH0799294B2 - Absorption refrigerator control method - Google Patents
Absorption refrigerator control methodInfo
- Publication number
- JPH0799294B2 JPH0799294B2 JP62083614A JP8361487A JPH0799294B2 JP H0799294 B2 JPH0799294 B2 JP H0799294B2 JP 62083614 A JP62083614 A JP 62083614A JP 8361487 A JP8361487 A JP 8361487A JP H0799294 B2 JPH0799294 B2 JP H0799294B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- water outlet
- cold water
- outlet temperature
- heating amount
- 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.)
- Expired - Lifetime
Links
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Description
【発明の詳細な説明】 (イ)産業上の利用分野 本発明は、吸収冷凍機や吸収ヒートポンプや吸収冷温水
器など(以下、吸収冷凍機と記す)の再生器内の吸収液
への加熱量を制御する方法の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to heating an absorption liquid in a regenerator of an absorption refrigerator, an absorption heat pump, an absorption chiller water heater (hereinafter referred to as an absorption refrigerator). It relates to an improved method of controlling the quantity.
(ロ)従来の技術 従来此種の吸収冷凍機の制御方法においては、実公昭62
−6449号公報で開示されているように、吸収器への冷却
水入口温度を検出してその検出値が低くなるに従い、冷
水出口温度の設定温度を引上げることにより、同じ冷却
出口温度条件下における溶液の加熱量を制限する方法が
公知となっている。(B) Conventional technology In the conventional control method of this type of absorption refrigerating machine, the method described in J.
As disclosed in Japanese Patent No. 6449, the cooling water inlet temperature to the absorber is detected, and as the detected value becomes lower, the set temperature of the cooling water outlet temperature is increased to meet the same cooling outlet temperature condition. A method for limiting the heating amount of the solution is known.
(ハ)発明が解決しようとする問題点 しかし、従来此種の吸収冷凍機の制御方法では、外気の
湿度が低いとき、つまりそれほど冷房を強くしなくても
暑さを我慢できるようなときでも、冷房用の冷水出口温
度、すなわち負荷の大きさによっては前記冷水出口温度
が設定温度になるまで吸収冷凍機を100%の出力での運
転、つまり溶液への加熱量を最大にして冷房を行うよう
に制御していた。このため、必要以上の燃料は消費する
結果となっていた。(C) Problems to be solved by the invention However, according to the conventional method of controlling the absorption refrigerating machine of this kind, even when the humidity of the outside air is low, that is, when the heat can be endured without increasing the cooling so much. , The cooling water outlet temperature for cooling, that is, depending on the size of the load, the absorption refrigerator is operated at 100% output until the cooling water outlet temperature reaches the set temperature, that is, cooling is performed by maximizing the heating amount to the solution. Was controlled. As a result, more fuel than necessary was consumed.
本発明は前述した従来技術の問題点に鑑みてなされたも
のであり、前記外気の湿度と相関関係にある冷却塔下流
の冷却水入口温度を検出して、この検出値を吸収冷凍機
の制御に用いて、燃料の節約ができる制御方法の提供を
技術的課題とする。The present invention has been made in view of the above-mentioned problems of the conventional art, and detects the cooling water inlet temperature of the cooling tower downstream which is correlated with the humidity of the outside air, and controls the detected value of the absorption refrigerator. It is a technical issue to provide a control method that can be used to save fuel.
(ニ)問題点を解決するための手段 気温が高くても、湿度が低ければ人間は暑さをあまり感
じない。冷却塔によって熱を放出する吸収冷凍機の冷却
水は、湿度が低ければ熱の放出量が大きく温度が下がる
ので、この冷却水の温度を検出して制御に役立てるもの
である。(D) Means for solving the problem Even if the temperature is high, humans do not feel much heat if the humidity is low. The cooling water of the absorption chiller that releases heat by the cooling tower has a large amount of heat release and a low temperature if the humidity is low, so the temperature of this cooling water is detected and used for control.
従って、吸収器、発生器、凝縮器、蒸発器、熱交換器及
びこれらの機器を配管接続して構成した冷凍サイクルを
備え、前記蒸発器からの冷水出口温度を検出してその検
出値により前記発生器における溶液の加熱量を制御して
前記冷水出口温度を調節するようにした吸収冷凍機の制
御方法において、前記吸収器への冷却水入口温度を検出
してその検出値の下限温度と上限温度との間で前記発生
器における溶液の最大加熱量を冷却水入口温度に比例し
て制限し、前記冷水出口温度を検出し、冷水出口温度の
下限温度と上限温度との間で、冷水出口温度の検出値に
より前記発生器における溶液の加熱量を前記最大加熱量
の範囲内で制御し、且つ、冷水出口温度の検出値の上限
温度以上の範囲では前記発生器における溶液の加熱量を
前記最大加熱量に制御するようにしたものである。Therefore, an absorber, a generator, a condenser, an evaporator, a heat exchanger and a refrigerating cycle configured by connecting these devices by piping are provided, and the cold water outlet temperature from the evaporator is detected and the detected value is used to In a method of controlling an absorption refrigerator in which the heating amount of a solution in a generator is controlled to adjust the cold water outlet temperature, the cooling water inlet temperature to the absorber is detected and the lower limit temperature and the upper limit of the detected value are detected. Between the temperature and the maximum amount of heating of the solution in the generator in proportion to the cooling water inlet temperature, detecting the cold water outlet temperature, between the lower limit temperature and the upper limit temperature of the cold water outlet temperature, the cold water outlet The heating amount of the solution in the generator is controlled within the range of the maximum heating amount by the detected value of the temperature, and the heating amount of the solution in the generator is in the range of the upper limit temperature of the detected value of the cold water outlet temperature or more. Maximum heating amount It is obtained by Gosuru way.
(ホ)作用 吸収器への冷却水入口温度を検出してその検出値の下限
温度と上限温度との間で前記発生器における溶液の最大
加熱量を冷却水入口温度に比例して制限し、前記冷水出
口温度を検出し、冷水出口温度の下限温度と上限温度と
の間で、冷水出口温度の検出値により前記発生器におけ
る溶液の加熱量を前記最大加熱量の範囲内で冷水出口温
度に比例して制御し、且つ、冷水出口温度の検出値の上
限温度以上の範囲では前記発生器における溶液の加熱量
を前記最大加熱量に制御する。(E) Action The cooling water inlet temperature to the absorber is detected, and the maximum heating amount of the solution in the generator is limited in proportion to the cooling water inlet temperature between the lower limit temperature and the upper limit temperature of the detected value, Detecting the cold water outlet temperature, between the lower limit temperature and the upper limit temperature of the cold water outlet temperature, the heating amount of the solution in the generator by the detected value of the cold water outlet temperature to the cold water outlet temperature within the range of the maximum heating amount. The heating amount of the solution in the generator is controlled to the maximum heating amount in the range of the upper limit temperature of the detected value of the cold water outlet temperature or more in proportion to the control.
(ヘ)実施例 以下本発明の一実施例を図面と共に説明する。(F) Embodiment One embodiment of the present invention will be described below with reference to the drawings.
第1図は本発明の吸収冷凍機の概略構成説明図である。
(1)は燃焼加熱室(2)と排熱管(3)を有した高温
発生器、(4)は低温発生器、(5)は凝縮器、(6)
は蒸発器、(7)は吸収器、(8)および(9)は低温
および高温溶接熱交換器で、これらは冷媒導管(10)、
冷媒液管(11)、冷媒ポンプ(12)を有する冷媒液還流
管(13)、溶液ポンプ(14)を有する稀液管(15)、中
間液管(16)、濃液管(17)で接続されて冷媒と吸収液
の循環径路を構成してる。(18)は蒸発器(6)用冷水
器で、この冷水器は冷水ポンプ(図示せず)を有する冷
水管(19)で負荷側熱交換器(図示せず)と接続されて
冷水回路を構成しており、(20)および(21)は吸収器
(7)用冷却器および凝縮器(5)用冷却器で、これら
は冷却水ポンプ(図示せず)を有する冷却水管(22)で
冷却塔(図示せず)と接続されている。(23)は燃焼加
熱室(2)に燃料を供給する燃料制御弁(V)付き燃料
供給路である。(32)は冷却水の吸収器(7)用冷却器
(20)入口側の温度(以下、冷却水入口温度という)を
検出する第1の温度検出器、(33)は冷水の冷水器(1
8)出口側温度(以下、冷水出口温度という)を検出す
る第2の温度検出器、(C)は前記検出器(32),(3
3)からの信号により前記燃料制御弁(V)の開度を制
御する信号を出力する制御部である。FIG. 1 is a schematic configuration explanatory view of an absorption refrigerator according to the present invention.
(1) is a high temperature generator having a combustion heating chamber (2) and an exhaust heat pipe (3), (4) is a low temperature generator, (5) is a condenser, (6)
Is an evaporator, (7) is an absorber, (8) and (9) are cold and hot welding heat exchangers, which are refrigerant conduits (10),
A refrigerant liquid pipe (11), a refrigerant liquid reflux pipe (13) having a refrigerant pump (12), a dilute liquid pipe (15) having a solution pump (14), an intermediate liquid pipe (16), and a concentrated liquid pipe (17). They are connected to form a circulation path for the refrigerant and the absorbing liquid. Reference numeral (18) is a chiller for the evaporator (6), which is connected to a load side heat exchanger (not shown) by a chilled water pipe (19) having a chilled water pump (not shown) to form a chilled water circuit. (20) and (21) are a cooler for the absorber (7) and a cooler for the condenser (5), which are cooling water pipes (22) having cooling water pumps (not shown). It is connected to a cooling tower (not shown). (23) is a fuel supply passage with a fuel control valve (V) for supplying fuel to the combustion heating chamber (2). (32) is a first temperature detector for detecting the temperature of the cooling water absorber (7) cooler (20) inlet side (hereinafter referred to as cooling water inlet temperature), and (33) is cold water chiller ( 1
8) A second temperature detector for detecting the outlet side temperature (hereinafter referred to as cold water outlet temperature), (C) is the detector (32), (3)
The control unit outputs a signal for controlling the opening degree of the fuel control valve (V) according to the signal from 3).
次にこの制御部(C)について第2図に沿って説明す
る。前記制御部(C)は、中央処理装置(24)、入力イ
ンターフェイス(25),(26)、出口インターフェイス
(27)、読出し専用記憶装置(28)、記憶装置(29)、
時計(30)から構成され、以下中央処理装置(24)、読
出し専用記憶装置(28)、記憶装置(29)をそれぞれCP
U,ROM,RAMと記す。(31)は吸収冷凍機の設定データ、
つまり主設定Sと比例帯Hとを入力するためのキーボー
ドである。Next, the control section (C) will be described with reference to FIG. The control section (C) includes a central processing unit (24), input interfaces (25) and (26), an exit interface (27), a read-only storage device (28), a storage device (29),
It consists of a clock (30), and a central processing unit (24), a read-only storage device (28), and a storage device (29).
Notated as U, ROM, RAM. (31) is the absorption refrigerator setting data,
That is, it is a keyboard for inputting the main setting S and the proportional band H.
第3図はある冷却水入口温度における本発明を用いた吸
収冷凍機の制御装置での制御スケジュール内容の説明図
であり、この説明図中に用いられる略号の内容及びデー
タの種類を示す表に次に記載する。FIG. 3 is an explanatory diagram of the control schedule contents in the control device for the absorption refrigerator using the present invention at a certain cooling water inlet temperature, and is a table showing the contents of abbreviations and the types of data used in this explanatory diagram. Described below.
第4図は制御部(C)による燃料制御弁(V)の開度調
節のフローチャートである。 FIG. 4 is a flowchart for adjusting the opening degree of the fuel control valve (V) by the control unit (C).
ここで、本発明を用いた吸収冷凍機での一般的動作を第
2図及び第4と共に説明する。使用者はキーボード(3
1)の操作により主設定Sと比例帯Hの値を入力する。
キーボード(31)からのディジタル信号は入力インター
フェイス(26)を介してCPU(24)へ入力され、この後
該CPU(26)はROM(28)内に記憶されているプログラム
に従って比例帯原点HO,比例帯終点HE,比例帯H2を演算す
る。更にCPU(24)は前記検出器(32)からのアナログ
信号、つまり冷却水入口温度TCOに相当する信号を入力
インターフェイス(25)を介しディジタル信号として入
力し、TCO<24(℃)ならば開度制限値L=50(%)、2
4(℃)≦TCO≦32(℃)ならばL={1−(32−TCO)/
16}×100(%)、32(℃)<TCOならばL=100(%)
のように開度制限値Lを演算する。主設定S及び比例帯
Hの値は使用者が任意に設定でき、更に、開度制限値L
の範囲もROM(28)に記憶されているプログラムの数値
変更により0(%)〜100(%)の間で任意に設定でき
るのは勿論である。Here, the general operation of the absorption refrigerator using the present invention will be described with reference to FIGS. 2 and 4. The user can use the keyboard (3
Input the value of main setting S and proportional band H by the operation of 1).
The digital signal from the keyboard (31) is input to the CPU (24) through the input interface (26), and then the CPU (26) is in accordance with the program stored in the ROM (28) and the proportional band origin H O. The proportional band end point H E and the proportional band H 2 are calculated. Further, the CPU (24) inputs an analog signal from the detector (32), that is, a signal corresponding to the cooling water inlet temperature T CO as a digital signal through the input interface (25), and if T CO <24 (° C) Opening limit value L = 50 (%), 2
If 4 (° C) ≤ T CO ≤ 32 (° C), L = {1- (32-T CO ) /
16} x 100 (%), 32 (° C) <T CO , L = 100 (%)
The opening limit value L is calculated as follows. The user can arbitrarily set the values of the main setting S and the proportional band H, and further, the opening limit value L
It is needless to say that the range can be arbitrarily set between 0 (%) and 100 (%) by changing the numerical value of the program stored in the ROM (28).
CPU(24)により開度制御値Lが演算されると、該Lを
用いてK=f(P)の冷水出口温度偏差値Pをパラメー
タとして0≦P≦H2,Pは0.1(℃)間隔で演算し、Pに
対応する燃料制御弁開度Kの表、すなわちデータ・テー
ブルを作成し、かつ、RAM(29)内に記憶させる。CPU
(24)は第2の温度検出器(33)からの信号、つまり冷
水出口温度TCの量に相当する信号を入力インターフェイ
ス(25)を介して入力し、前記冷水出口温度TCを用いて
冷水出口温度偏差値Pを演算する。CPU(24)はこの冷
水出口温度TCに対応する燃料制御弁開度Kをデータ・テ
ーブルを記憶しているRAM(29)から読出し、この燃料
制御弁開度Kの値に相当する信号を出力インターフェイ
ス(27)を介して燃料制御弁(V)へ信号を出力し、該
燃料制御弁(V)の開度は前記燃料制御弁開度Kになる
ように制御される。When the opening control value L is calculated by the CPU (24), 0 ≤ P ≤ H 2 , P is 0.1 (° C) using the L as a parameter with the cold water outlet temperature deviation value P of K = f (P). A table of the fuel control valve opening K corresponding to P, that is, a data table is created and stored in the RAM (29) by calculation at intervals. CPU
(24) inputs a signal from the second temperature detector (33), that is, a signal corresponding to the amount of the cold water outlet temperature T C , through the input interface (25) and uses the cold water outlet temperature T C. The chilled water outlet temperature deviation value P is calculated. The CPU (24) reads the fuel control valve opening K corresponding to the cold water outlet temperature T C from the RAM (29) storing the data table, and outputs a signal corresponding to the value of the fuel control valve opening K. A signal is output to the fuel control valve (V) via the output interface (27), and the opening of the fuel control valve (V) is controlled to the fuel control valve opening K.
前記CPU(24)は時計(30)からの1分毎の信号を入力
すると、第4図のロからハまでの演算、すなわちデータ
・テーブルの作成に新たに行い、更に時計(30))から
の数10ミリ秒毎の信号を入力するとハからニまでの演
算、すなわちTCに対応する燃料制御弁(V)の開度の調
節を行うものであって、イからロまでの演算は使用者が
主設定S及び比例帯Hの値が新たに入力したとき以外は
行わないものである。When the CPU (24) inputs a signal from the clock (30) every one minute, it newly performs calculation from B to C in FIG. 4, that is, creates a data table, and further from the clock (30). When a signal of every several tens of milliseconds is input, the calculation from c to d, that is, the opening of the fuel control valve (V) corresponding to T C is adjusted, and the calculation from a to b is used. It is not performed except when the person newly inputs the values of the main setting S and the proportional band H.
本発明を用いた吸収冷凍機の制御装置では高温再生器
(1)への熱源として蒸気及び高温水等も使用できるの
は勿論である。It goes without saying that steam, high-temperature water and the like can be used as a heat source for the high temperature regenerator (1) in the control apparatus for the absorption refrigerator using the present invention.
主設定S=7(℃),比例帯H=1(℃)のときの本発
明を用いた吸収冷凍機の制御の一例を第5図に示し、前
記吸収冷凍機において、S=7(℃)、H=1(℃)の
ときの具体的動作を第2図及び第5図と共に説明する。FIG. 5 shows an example of control of an absorption refrigerator using the present invention when main setting S = 7 (° C.) and proportional band H = 1 (° C.). In the absorption refrigerator, S = 7 (° C.) ) And H = 1 (° C.), a specific operation will be described with reference to FIGS. 2 and 5.
最初の使用時に使用者はキーボード(31)の操作により
主設定Sと比例帯Hとの値を制御部(C)へ入力する。
今使用者がS=7(℃),H=1(℃)として入力する
と、CPU(24)がROM(28)のプログラムに従つてHO=6
(℃),HE=8(℃),H2=2(℃)と演算し、この値を
RAM(29)に記憶させる。At the time of first use, the user operates the keyboard (31) to input the values of the main setting S and the proportional band H to the control unit (C).
Now, when the user inputs as S = 7 (℃) and H = 1 (℃), the CPU (24) follows the program of ROM (28) and H O = 6
(℃), H E = 8 (℃), H 2 = 2 (℃)
Store in RAM (29).
今、冷却水入口温度TCO=28(℃)であるとすると、こ
れを検出器(32)が検出し、入力インターフェイス(2
5)を介して信号を入力するとCPU(24)はROM(28)内
のプログラムに従って、開度制御値Lを75(%)と演算
する。CPU(24)は前記Lの値を用い、冷水出口温度偏
差値PをパラメータとしてP=0(℃)から0.1(℃)
間隔でP=2(℃)までのそれぞれの値に対応する燃料
制御弁開度Kを演算した結果、すなわちK=f(P)の
データ・テーブルを作成し、これをRAM(29)に記憶さ
せる。Now, assuming that the cooling water inlet temperature T CO = 28 (° C), this is detected by the detector (32) and the input interface (2
When a signal is input via 5), the CPU (24) calculates the opening control value L as 75 (%) according to the program in the ROM (28). The CPU (24) uses the value of L and uses the cold water outlet temperature deviation value P as a parameter from P = 0 (° C) to 0.1 (° C)
The result of calculating the fuel control valve opening K corresponding to each value up to P = 2 (° C) at intervals, that is, the data table of K = f (P) is created and stored in the RAM (29). Let
今、冷水出口温度TC=7.5(℃)であるとすると、これ
を第2の温度検出器(33)が検出し、入力インターフェ
イス(25)を介して信号を入力するとCPU(24)は演算
を行い、冷水出口温度偏差値Pを1.5(℃)と演算す
る。CPU(24)RAM(29)のデータ・テーブルからP=1.
5(℃)に対応するKを56.25(%)と読出し、この値に
相当する信号を出力インターフェイス(27)を介して燃
料制御弁(V)へ出力し、該燃料制御弁(V)の開度は
56.25%になるように制御される。Now, assuming that the chilled water outlet temperature T C is 7.5 (° C), the second temperature detector (33) detects this and the CPU (24) calculates when a signal is input via the input interface (25). And the chilled water outlet temperature deviation value P is calculated as 1.5 (° C.). From the data table of CPU (24) RAM (29), P = 1.
K corresponding to 5 (° C) is read as 56.25 (%), a signal corresponding to this value is output to the fuel control valve (V) through the output interface (27), and the fuel control valve (V) is opened. Degree
It is controlled to be 56.25%.
ここで、冷却水入口温度TCO=28(℃)のデータ・テー
ブル作成から1分以内、つまりCPU(24)が次のTCO値を
入力し新しいデータ・テーブルを作成するまでの間に冷
水出口温度TC=7.6(℃)に変化したとすると、CPU(2
4)は冷水出口温度偏差値Pを1.6(℃)と演算する。CP
U(24)は前記RAM(29)のデータ・テーブルからP=1.
6(℃)に対応する燃料制御弁開度Kを60(%)と読出
し、この値に相当する信号を出力インターフェイス(2
7)を介して燃料制御弁(V)へ出力し、該燃料制御弁
(V)の開度は60(%)になるように制御される。Here, within 1 minute from the creation of the data table with the cooling water inlet temperature T CO = 28 (° C), that is, until the CPU (24) inputs the next T CO value and creates a new data table. If the outlet temperature T C changes to 7.6 (℃), the CPU (2
In 4), the chilled water outlet temperature deviation value P is calculated as 1.6 (° C). CP
U (24) is P = 1. from the data table of the RAM (29).
The fuel control valve opening K corresponding to 6 (℃) is read as 60 (%), and the signal corresponding to this value is output.
It outputs to a fuel control valve (V) via 7), and the opening degree of this fuel control valve (V) is controlled so that it may become 60 (%).
更に、吸収冷凍機の運転が続けられ、数分後に冷却器
(20)への冷却水入口温度TCOが27(℃)に変化したと
き、更に時計(30)からの1分毎の信号を入力すると、
CPU(24)が第1の温度検出器(32)からの信号と入力
インターフェイス(25)を介して入力し、前述と同様に
開度制限値L=68.75(%)と演算し、該Lの値を使用
して新たに燃料制御弁開度K=f(P)のデータ・テー
ブルを作成し、RAM(29)に記憶させる。Furthermore, when the absorption chiller continues to operate and the cooling water inlet temperature T CO to the cooler (20) changes to 27 (° C) after a few minutes, a signal from the clock (30) is output every minute. When you type
The CPU (24) inputs the signal from the first temperature detector (32) through the input interface (25) and calculates the opening limit value L = 68.75 (%) in the same manner as described above. Using the values, a new data table of the fuel control valve opening K = f (P) is created and stored in the RAM (29).
冷却水入口温度TCOは28(℃)から27(℃)へと変化し
たが、冷水出口温度TCは7.6(℃)のままであったとす
ると、前記動作説明と同様にCPU(24)は冷水出口温度
偏差値Pを1.6(℃)と演算し、このPに対応する燃料
制御弁開度Kの値を前記データ・テーブルからK=55
(%)と読出し、この値に相当する信号を出力インター
フェイス(27)を介して前記燃料制御弁(V)へ出力
し、該燃料制御弁(V)の開度は55(%)になるように
制御される。If the cooling water inlet temperature T CO changed from 28 (° C) to 27 (° C), but the cooling water outlet temperature T C remained at 7.6 (° C), the CPU (24) The chilled water outlet temperature deviation value P is calculated as 1.6 (° C.), and the value of the fuel control valve opening K corresponding to this P is calculated from the data table as K = 55.
(%), And outputs a signal corresponding to this value to the fuel control valve (V) via the output interface (27) so that the opening of the fuel control valve (V) becomes 55 (%). Controlled by.
(ト)発明の効果 このように、本発明での吸収冷凍機の制御方法では、外
気の湿度と相関関係にある冷却塔下流の冷却水入口温度
を検出してその検出値の下限温度と上限温度との間で前
記発生器における溶液の最大加熱量を冷却水入口温度に
比例して制限し、前記冷水出口温度を検出し、冷水出口
温度の下限温度と上限温度との間で、冷水出口温度の検
出値により前記発生器における溶液の加熱量を前記最大
加熱量の範囲内で冷水出口温度に比例して制御し、且
つ、冷水出口温度の検出値の上限温度以上の範囲では前
記発生器おける溶液の加熱量を前記最大加熱量に制御す
るので、前記冷却水入口温度が低いとき、換言すればそ
れほど冷房しなくとも我慢できるようなときは冷房用の
冷水出口温度が高い場合でも吸収冷凍機を100%の出力
での運転、つまり溶液への加熱量が100%とならないよ
うに最大加熱量が冷却水入口温度の下限温度と上限温度
との間で冷却水入口温度に比例して制限されている。こ
のため、冷却水入口温度が低いときに溶液への必要以上
の加熱が行われることが回避され、冷却水入口温度が上
限温度以下の時には燃料を冷却水入口温度に応じて確実
に節約することができる。(G) Effect of the Invention As described above, in the control method of the absorption refrigerator according to the present invention, the lower limit temperature and the upper limit of the detected value are detected by detecting the cooling water inlet temperature downstream of the cooling tower that is correlated with the humidity of the outside air. Between the temperature and the maximum amount of heating of the solution in the generator in proportion to the cooling water inlet temperature, detecting the cold water outlet temperature, between the lower limit temperature and the upper limit temperature of the cold water outlet temperature, the cold water outlet The heating amount of the solution in the generator is controlled in proportion to the cold water outlet temperature within the range of the maximum heating amount by the detected value of temperature, and the generator is in the range of the upper limit temperature of the detected value of cold water outlet temperature or more. Since the heating amount of the solution is controlled to the maximum heating amount, absorption refrigeration is performed even when the cooling water outlet temperature is high when the cooling water inlet temperature is low, in other words, when the cooling water can be put up without much cooling. Machine at 100% output In operation, that is, the maximum heating amount is limited between the lower limit temperature and the upper limit temperature of the cooling water inlet temperature in proportion to the cooling water inlet temperature so that the heating amount to the solution does not reach 100%. Therefore, excessive heating of the solution is avoided when the cooling water inlet temperature is low, and when the cooling water inlet temperature is less than or equal to the upper limit temperature, fuel is surely saved according to the cooling water inlet temperature. You can
第1図は本発明を用いた吸収冷凍機の概略構成説明図、
第2図は第1図に示した吸収冷凍機における制御部のブ
ロック・ダイアグラム、第3図は吸収冷凍機の制御スケ
ジュールの内容を説明する図、第4図は中央処理装置に
よる燃料制御弁を開度調節のフローチャート、第5図は
本発明による吸収冷凍機の制御の一例を示す説明図であ
る。 (V)……燃料制御弁、(C)……制御部、(19)……
冷水管、(22)……冷却水管、(24)……中央処理装
置、(25),(26)……入力インターフェイス、(27)
……出力インターフェイス、(28)……読出し専用記憶
装置、(29)……記憶装置、(30)……時計、(32)…
…第1の温度検出器、(33)……第2の温度検出器。FIG. 1 is a schematic configuration explanatory view of an absorption refrigerator using the present invention,
FIG. 2 is a block diagram of the control unit in the absorption refrigerator shown in FIG. 1, FIG. 3 is a diagram for explaining the contents of the control schedule of the absorption refrigerator, and FIG. 4 is a fuel control valve by the central processing unit. FIG. 5 is an explanatory view showing an example of control of the absorption refrigerator according to the present invention, which is a flow chart for adjusting the opening degree. (V) …… Fuel control valve, (C) …… Control unit, (19) ……
Cold water pipe, (22) …… Cooling water pipe, (24) …… Central processing unit, (25), (26) …… Input interface, (27)
...... Output interface, (28) …… Read-only storage device, (29) …… Storage device, (30) …… Clock, (32)…
… First temperature detector, (33) …… Second temperature detector.
Claims (1)
器及びこれらの機器を配管接続して構成した冷凍サイク
ルを備え、前記蒸発器からの冷水出口温度を検出してそ
の検出値により前記発生器における溶液の加熱量を制御
して前記冷水出口温度を調節するようにした吸収冷凍機
の制御方法において、前記吸収器への冷却水入口温度を
検出してその検出値の下限温度と上限温度との間で前記
発生器における溶液の最大加熱量を冷却水入口温度に比
例して制限し、前記冷水出口温度を検出し、冷水出口温
度の下限温度と上限温度との間で、冷水出口温度の検出
値により前記発生器における溶液の加熱量を前記最大加
熱量の範囲内で冷水出口温度に比例して制御し、且つ、
冷水出口温度の検出値の上限温度以上の範囲では前記発
生器における溶液の加熱量を前記最大加熱量に制御する
ことを特徴とする吸収冷凍機の制御方法。1. An absorber, a generator, a condenser, an evaporator, a heat exchanger, and a refrigerating cycle constituted by connecting these devices by piping, and detecting the cold water outlet temperature from the evaporator to detect it. In a method of controlling an absorption refrigerator in which the heating amount of a solution in the generator is controlled by a value to adjust the cold water outlet temperature, the cooling water inlet temperature to the absorber is detected and the lower limit of the detected value is detected. The maximum heating amount of the solution in the generator between the temperature and the upper limit temperature is limited in proportion to the cooling water inlet temperature, the cold water outlet temperature is detected, and between the lower limit temperature and the upper limit temperature of the cold water outlet temperature. Controlling the heating amount of the solution in the generator by the detected value of the cold water outlet temperature in proportion to the cold water outlet temperature within the range of the maximum heating amount, and
A method for controlling an absorption refrigerator, wherein the heating amount of the solution in the generator is controlled to the maximum heating amount in a range equal to or higher than the upper limit temperature of the detected value of the cold water outlet temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62083614A JPH0799294B2 (en) | 1987-04-03 | 1987-04-03 | Absorption refrigerator control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62083614A JPH0799294B2 (en) | 1987-04-03 | 1987-04-03 | Absorption refrigerator control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63251764A JPS63251764A (en) | 1988-10-19 |
| JPH0799294B2 true JPH0799294B2 (en) | 1995-10-25 |
Family
ID=13807363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62083614A Expired - Lifetime JPH0799294B2 (en) | 1987-04-03 | 1987-04-03 | Absorption refrigerator control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0799294B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02136655A (en) * | 1988-11-17 | 1990-05-25 | Sanyo Electric Co Ltd | Control method for absorption refrigerating machine |
| JPH02140564A (en) * | 1988-11-18 | 1990-05-30 | Sanyo Electric Co Ltd | Controlling method for absorption refrigerator |
| WO1991015721A1 (en) * | 1990-04-10 | 1991-10-17 | Kawaju Reinetsu Kogyo Kabushiki Kaisha | Method of controlling absorption refrigerating machine or absorption water cooler-heater |
| JP3306778B2 (en) * | 1990-04-10 | 2002-07-24 | 川重冷熱工業株式会社 | Cycle control method for absorption chiller / chiller / heater |
| JP2557722B2 (en) * | 1990-05-29 | 1996-11-27 | 三洋電機株式会社 | Absorption refrigerator control method |
| US5619859A (en) * | 1993-12-27 | 1997-04-15 | Daikin Industries, Ltd. | Absorption refrigeration unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0236869B2 (en) * | 1982-03-19 | 1990-08-21 | Mitsubishi Heavy Ind Ltd | KYUSHUREITOKISEIGYOSOCHI |
-
1987
- 1987-04-03 JP JP62083614A patent/JPH0799294B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63251764A (en) | 1988-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103994618B (en) | For controlling the method and system of string row's scroll compressor unit | |
| CN105757888A (en) | Method and device for linked control of indoor machine and outdoor machine of precision air conditioner | |
| CN110145906B (en) | Refrigerant circulation system, control method thereof and computer readable storage medium | |
| CN107560207A (en) | Screw type water chilling unit and control method thereof | |
| JPH0799294B2 (en) | Absorption refrigerator control method | |
| US5916251A (en) | Steam flow regulation in an absorption chiller | |
| KR100201645B1 (en) | Fuzzy control of branch flow rate and combustion of a multi-type absorption type air conditioner and its method | |
| JP2807934B2 (en) | Air conditioner | |
| CN109270843B (en) | A Waterway Fuzzy PID Control Method for Transcritical Carbon Dioxide System | |
| CN111854203A (en) | A kind of refrigerator equipment, refrigeration system and control method thereof | |
| CN100529607C (en) | Absorption refrigerator control method and system | |
| JPH0575938B2 (en) | ||
| CN207196987U (en) | Screw type water chilling unit | |
| JPS61235654A (en) | Absorption water chiller and heater | |
| JP3079839U (en) | Temperature control device for chiller | |
| JPH0621736B2 (en) | Absorption refrigerator | |
| JP2708809B2 (en) | Control method of absorption refrigerator | |
| JP3292763B2 (en) | Method and apparatus for controlling absorption refrigerator | |
| CN119665467B (en) | Fixed-frequency water chilling unit and temperature control method thereof | |
| JP3175042B2 (en) | Temperature control method of cold / hot water generator | |
| JPH0670537B2 (en) | Heat source steam flow controller for absorption refrigerator | |
| JP2763178B2 (en) | Feed water heater drain water level control device | |
| JPH0289940A (en) | Space cooling system using naturally circulated refrigerant | |
| JPS63105374A (en) | Method of controlling absorption water heater and chiller | |
| JPS6115340B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071025 Year of fee payment: 12 |