JPH07122529B2 - Absorption refrigerator abnormality diagnosis device - Google Patents
Absorption refrigerator abnormality diagnosis deviceInfo
- Publication number
- JPH07122529B2 JPH07122529B2 JP19488787A JP19488787A JPH07122529B2 JP H07122529 B2 JPH07122529 B2 JP H07122529B2 JP 19488787 A JP19488787 A JP 19488787A JP 19488787 A JP19488787 A JP 19488787A JP H07122529 B2 JPH07122529 B2 JP H07122529B2
- Authority
- JP
- Japan
- Prior art keywords
- detecting
- set value
- result
- cooling water
- temperature
- 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.)
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- 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など（以下、
吸収冷凍機と記す）の異常診断装置に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an absorption refrigerator, an absorption heat pump, etc.
Abnormality diagnosis device).
（ロ）従来の技術 従来此種の吸収冷凍機においては、再生器内に圧力検知
器および吸収液温度検知器を設け、該検知器が設定範囲
外の検知量を検知すると、安全装置が報知装置を鳴動さ
せ、且つ、吸収冷凍機の運転を停止させるものが公知と
なっている。(B) Conventional technology In the conventional absorption refrigerator of this type, a pressure detector and an absorption liquid temperature detector are provided in the regenerator, and when the detector detects a detected amount outside the set range, the safety device gives an alarm. It is known to ring the device and stop the operation of the absorption refrigerator.
更に、従来の此種の異常診断装置においては、この装置
の設けられている機器内に検知器を設け、該検知器が異
常に検知すると前記異常診断装置はこの異常を表示する
もの（例えば、特開昭57−98742号公報参照）も公知と
なっている。Further, in the conventional abnormality diagnosing device of this type, a detector is provided in the device in which the device is provided, and when the detector detects an abnormality, the abnormality diagnosing device displays the abnormality (for example, Japanese Patent Laid-Open No. 57-98742) is also known.
（ハ）発明が解決しようとする問題点 しかし、従来の吸収冷凍機においては、検知器が異常と
検知した場合に異常箇所を特定できないという問題点を
生じていた。(C) Problems to be Solved by the Invention However, in the conventional absorption refrigerator, there is a problem that the abnormal portion cannot be specified when the detector detects the abnormality.
更に、従来の異常診断装置においては、検知器が異常と
検知した場合に異常箇所を特定することはできるが、こ
の異常の原因が複数考えられる場合は原因を特定するこ
とができなかった。Further, in the conventional abnormality diagnosis device, the abnormal portion can be specified when the detector detects the abnormality, but the cause cannot be specified when there are a plurality of possible causes of this abnormality.
本発明は前述した従来技術の問題に鑑みてなされたもの
であり、吸収冷凍機の異常の原因を特定できる異常診断
装置の提供を技術的課題とする。The present invention has been made in view of the above-described problems of the related art, and an object thereof is to provide an abnormality diagnosis device that can identify the cause of an abnormality of an absorption refrigerator.
（ニ）問題点を解決するための手段 本発明は前記問題点を解決する手段として、冷凍サイク
ルからの異常信号によって運転を停止させる安全装置を
備えている吸収冷凍機において、冷却水流量を検知する
第１の検知手段と、冷却水入口温度を検知する第２の検
知手段と、燃料流量を検知する第３の検知手段と、蒸発
器内の圧力あるいは冷媒液温度を検知する第４の検知手
段と、凝縮器内冷媒温度と冷却水出口温度との差を検知
する第５の検知手段と、冷却水流量の第１の設定値、冷
却水温度の第２の設定値、燃料流量の第３の設定値、蒸
発器内の圧力あるいは冷媒液温度の第４の設定値、凝縮
器内冷媒温度と冷却水出口温度との差の第５の設定値、
第１の検知手段の検知結果と第１の設定値とを比較した
第１の診断結果、第２の検知手段の検知結果と第２の設
定値とを比較した第２の診断結果、第３の検知手段の検
知結果と第３の設定値とを比較した第３の診断結果、第
４の検知手段の検知結果と第４の設定値とを比較した第
４の診断結果及び第５の検知手段の検知結果と第５の設
定値とを比較した第５、第６の診断結果を記憶する記憶
手段と、これらの診断結果のいずれかを表示する表示手
段とを供え、予め前記記憶手段に記憶された第１乃至第
５の設定値と前記第１乃至第５の検知結果とを第１の設
定値と第１の検知結果との比較乃至第５の設定値と第５
の検知結果との比較の順で比較し、異常があるときは、
前記表示手段に信号を出力し診断結果を前記表示手段に
表示させる演算手段を設けたものである。(D) Means for Solving Problems As a means for solving the above problems, the present invention detects a cooling water flow rate in an absorption refrigerator having a safety device that stops operation due to an abnormal signal from a refrigeration cycle. First detecting means, second detecting means for detecting the cooling water inlet temperature, third detecting means for detecting the fuel flow rate, and fourth detecting means for detecting the pressure in the evaporator or the refrigerant liquid temperature. Means, fifth detecting means for detecting a difference between the refrigerant temperature in the condenser and the cooling water outlet temperature, a first set value of the cooling water flow rate, a second set value of the cooling water temperature, a fifth set value of the fuel flow rate. 3, the fourth set value of the pressure in the evaporator or the refrigerant liquid temperature, the fifth set value of the difference between the refrigerant temperature in the condenser and the cooling water outlet temperature,
A first diagnosis result obtained by comparing the detection result of the first detection means with a first set value, a second diagnosis result obtained by comparing the detection result of the second detection means with a second set value, and a third Third diagnostic result obtained by comparing the detection result of the second detection means with the third set value, fourth diagnostic result obtained by comparing the detection result of the fourth detection means with the fourth set value, and fifth detection result The storage means is provided with a storage means for storing fifth and sixth diagnostic results obtained by comparing the detection result of the means with the fifth set value, and a display means for displaying either of these diagnostic results. The stored first to fifth set values and the stored first to fifth detection results are compared with the first set values and the first detection results to the fifth set values and the fifth set values.
Compare in the order of comparison with the detection result of, and if there is an abnormality,
An arithmetic means is provided for outputting a signal to the display means and displaying the diagnosis result on the display means.
（ホ）作用 再生器内の圧力上昇あるいは吸収液温度上昇の原因とし
て考えられるのは「冷却水系統の異常」「クーリングタ
ワー系の異常」「バーナーの異常」「抽気不足」「冷却
水系の伝熱管の汚れ」の５つで、前記再生器内の圧力上
昇あるいは吸収液温度上昇の原因はほぼ100％この５つ
の中にある。(E) Action Possible causes of the pressure rise in the regenerator or the temperature rise of the absorption liquid are "abnormal cooling water system""abnormal cooling tower system""abnormalburner""insufficient extraction of air""heat transfer tube of cooling water system" The cause of the increase in pressure in the regenerator or the increase in the temperature of the absorbing liquid in the five "fouling of" is almost 100% among these five.
そして、前記５つの中のどの原因かを探るために本発明
における吸収冷凍機の診断装置は、前記５つの原因を究
明するための第１乃至第５の検知手段を備えており、以
下の順で異常の原因を特定する。In order to find out which of the five causes, the diagnostic apparatus for an absorption refrigerating machine according to the present invention includes first to fifth detecting means for investigating the five causes, and the following order is given. Identify the cause of the abnormality.
冷凍サイクルからの異常信号を入力すると演算手段は第
１乃至第５の検知手段からの第１乃至第５の検知結果と
第１乃至第５の設定値とをこの順序で比較し、更に、こ
の比較結果に基づいて信号を表示手段に出力する。該信
号を入力すると記憶装置に記憶されている診断結果を表
示装置が表示する。When the abnormal signal from the refrigeration cycle is input, the calculation means compares the first to fifth detection results from the first to fifth detection means with the first to fifth set values in this order, and further, A signal is output to the display means based on the comparison result. When the signal is input, the display device displays the diagnostic result stored in the storage device.
（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図は本発明異常診断装置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
有した高温再生器、（４）は低温再生器、（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液熱交換器で、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いる。（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）で冷却管（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
（24）付き燃料供給路である。FIG. 1 is a schematic configuration explanatory view of an absorption chiller of the abnormality diagnosis device of the present invention. (1) is a high temperature regenerator having a combustion heating chamber (2) and an exhaust heat pipe (3), (4) is a low temperature regenerator, (5) is a condenser, (6) is an evaporator, and (7) is an absorber. And (8) and (9) are low-temperature and high-temperature solution heat exchangers, which include a refrigerant conduit (10), a refrigerant liquid pipe (11), a refrigerant liquid return pipe (13) having a refrigerant pump (12), and a solution. A dilute liquid pipe (15) having a pump (14), an intermediate liquid pipe (16), and a concentrated liquid pipe (17) 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 a chilled water pipe (19) having a chilled water pump (not shown) and a load heat exchanger (not shown).
And (21) and (21) are a cooler for the absorber (7) and a cooler for the condenser (5), which are connected to a cooling water pump (not shown). It has a cooling water pipe (22) connected to a cooling pipe (not shown).
(23) is a fuel supply passage with a fuel control valve (24) for supplying fuel to the combustion heating chamber (2).
（25）は前記高温再生器（１）内の圧力を検知する圧力
検知器、（26）は高温再生器（１）内の吸収液温度を検
知する吸収液温度検知器である。更に、（27）は冷却水
入口に設けられ且つ冷却水流量を検知する第１の検知
器、（28）は前記冷却水入口に設けられ且つ冷却水入口
温度を検知する第２の検知器、（29）は前記燃料供給路
（23）に設けられ且つ燃料流量を検知する第３の検知
器、（30）は前記蒸発器（６）に設けられ且つ蒸発器
（６）内圧力を検出する第４の検知器、（31）は前記凝
縮器（５）内に設けられ且つ冷媒液温度を検知する冷媒
液温度検知器、（32）は前記冷却水管（22）出口に設け
られ且つ冷却水出口温度を検知する冷却水出口温度検知
器、（33）は前記検知器（25），（26），（27），（2
8），（29），（30），（31），（32）からの信号に基
づいて異常の原因究明と制御とを行う異常診断装置であ
る。(25) is a pressure detector for detecting the pressure in the high temperature regenerator (1), and (26) is an absorbing liquid temperature detector for detecting the absorbing liquid temperature in the high temperature regenerator (1). Further, (27) is a first detector provided at the cooling water inlet and detecting the cooling water flow rate, (28) is a second detector provided at the cooling water inlet and detecting the cooling water inlet temperature, (29) is a third detector that is provided in the fuel supply path (23) and detects the fuel flow rate, and (30) is provided in the evaporator (6) and detects the internal pressure of the evaporator (6) A fourth detector, (31) is provided in the condenser (5) and is a refrigerant liquid temperature detector for detecting the refrigerant liquid temperature, and (32) is provided at the outlet of the cooling water pipe (22) and is cooling water. Cooling water outlet temperature detector for detecting outlet temperature, (33) is the detector (25), (26), (27), (2
This is an abnormality diagnosis device that investigates the cause of an abnormality and controls it based on the signals from 8), (29), (30), (31), and (32).
第２図は異常診断装置（33）のブロック説明図である。
（34）はプログラムが記憶されているROM、（35）は第
１から第５の設定値及び第１から第６の診断結果（原因
と対策）を記憶しているRAMである。前記５つ設定値は
使用者のキーボード（36）操作により自由に設定でき
る。（37）はROM（34）のプログラムに従って演算処理
を行うCPU、（38），（39），（40），（41）はインタ
ーフェイス、（42）は液晶の表示装置、（43）はプリン
ターである。尚、前記インターフェイス（40）は各種の
弁やポンプ（12），（14）やバーナーと接続されてい
る。FIG. 2 is a block diagram of the abnormality diagnosis device (33).
Reference numeral (34) is a ROM in which a program is stored, and reference numeral (35) is a RAM in which first to fifth set values and first to sixth diagnostic results (causes and countermeasures) are stored. The five setting values can be freely set by the user operating the keyboard (36). (37) is a CPU that performs arithmetic processing according to the program of the ROM (34), (38), (39), (40) and (41) are interfaces, (42) is a liquid crystal display device, and (43) is a printer. is there. The interface (40) is connected to various valves, pumps (12), (14) and burners.
第３図はフローチャート図、第４図は第１の診断結果を
表示した説明図、第５図は第２の診断結果を表示した説
明図、第６図は第３の診断結果を表示した説明図、第７
図は第４の診断結果を表示した説明図、第８図は第５の
診断結果を表示した説明図、第９図は第６の診断結果を
表示した説明図である。FIG. 3 is a flow chart, FIG. 4 is an explanatory view showing the first diagnostic result, FIG. 5 is an explanatory view showing the second diagnostic result, and FIG. 6 is an explanatory view showing the third diagnostic result. Figure, 7th
FIG. 8 is an explanatory diagram showing the fourth diagnostic result, FIG. 8 is an explanatory diagram showing the fifth diagnostic result, and FIG. 9 is an explanatory diagram showing the sixth diagnostic result.
次に、本発明異常診断装置の動作について説明する。
尚、RAM（35）内には使用者のキーボード（36）操作に
より第１の設定値から第５の設定値がそれぞれ100m3/
h、32℃、28.4Nm3/h（天然ガス11,000Kcal/Nm3使用時の
場合）、6.1mmHg、2.8℃（この５つの設定値は100USRT
の直火式を使用した場合の値である）と入力されてい
る。ただし、前記第４の検知器（30）の代わりに蒸発器
内の冷媒温度検知器を使用してもよい。この場合、第４
の設定値は4.1℃である。Next, the operation of the abnormality diagnosis device of the present invention will be described.
In the RAM (35), the first to fifth setting values are 100 m 3 /
h, 32 ℃, 28.4Nm 3 / h (when using natural gas 11,000Kcal / Nm 3 ), 6.1mmHg, 2.8 ℃ (These five setting values are 100USRT.
Is the value when using the direct fire formula) is entered. However, a refrigerant temperature detector in the evaporator may be used instead of the fourth detector (30). In this case, the fourth
The set value for is 4.1 ° C.
圧力検知器（25）あるいは吸収液温度検知器（26）から
の異常信号をインターフェイス（38）を介して入力する
とCPU（37）はROM（34）のプログラムに従って以下の演
算処理（第３図参照）を行う。When an abnormal signal from the pressure detector (25) or the absorbing liquid temperature detector (26) is input via the interface (38), the CPU (37) performs the following arithmetic processing according to the program in the ROM (34) (see FIG. 3). )I do.
まず最初に、第１の検知器（27）からの第１の検知結果
をインターフェイス（38）を介して入力するとCPU（3
7）はRAM（35）内に記憶されている第１の設定値と前記
第１の検知結果とを比較し、第１の設定値（100m3/h）
＞第１の検知結果ならばCPU（37）はインターフェイス
（39）を介して表示装置（42）およびプリンター（43）
に信号を出力し、第１の診断結果を表示（第４図参照）
および印刷させる。第１の設定値≦第１の検知結果なら
ばCPU（37）は次の比較を行う。First, when the first detection result from the first detector (27) is input via the interface (38), the CPU (3
7) compares the first set value stored in the RAM (35) with the first detection result, and the first set value (100 m 3 / h)
> If it is the first detection result, the CPU (37) causes the display device (42) and the printer (43) via the interface (39).
Outputs a signal to and displays the first diagnostic result (see Fig. 4)
And let it print. If the first set value ≦ the first detection result, the CPU (37) performs the following comparison.
第２の検知器（28）からの第２の検知結果を入力すると
CPU（37）は第２の設定値と前記第２の検知結果とを比
較し、第２の設定値（32℃）＜第２の検知結果ならばCP
U（37）は信号を出力し、第２の診断結果を表示（第５
図参照）および印刷させる。第２の設定値≧第２の検知
結果ならばCPU（37）は次の比較を行う。When the second detection result from the second detector (28) is input
The CPU (37) compares the second set value with the second detection result, and if the second set value (32 ° C.) <The second detection result, then CP
U (37) outputs a signal and displays the second diagnostic result (fifth
(See the figure) and print. If the second set value ≧ the second detection result, the CPU (37) performs the following comparison.
第３の検知器（29）からの第２の検知結果を入力すると
CPU（37）は第３の設定値と前記第３の検知結果とを比
較し、第３の設定値（28.4Nm3/h）＜第３の検知結果な
らばCPU（37）は信号を出力し、第３の診断結果を表示
（第６図参照）および印刷させる。第３の設定値≧第３
の検知結果ならばCPU（37）は次の比較を行う。When the second detection result from the third detector (29) is input
The CPU (37) compares the third set value with the third detection result, and if the third set value (28.4Nm 3 / h) <the third detection result, the CPU (37) outputs a signal. Then, the third diagnosis result is displayed (see FIG. 6) and printed. Third set value ≧ third
If the detection result is, the CPU (37) makes the following comparison.
第４の検知器（30）からの第４の検知結果を入力すると
CPU（37）は第４の設定値と前記第４の検知結果とを比
較し、第４の設定値（6.1mmHg）＜第４の検知結果なら
ばCPU（37）は信号を出力し、第４の診断結果を表示
（第７図参照）および印刷させる。第４の設定値≧第４
の検知結果ならばCPU（37）は次の比較を行う。ここ
で、第４の検知器（30）として冷媒温度検知器を使用し
た場合は設定値を4.1℃とし、第４の検知結果がこの値
を越えた場合には、CPU（37）が信号を出力し表示装置
（42）第４の診断結果を表示および印刷させる。When the fourth detection result from the fourth detector (30) is input
The CPU (37) compares the fourth set value with the fourth detection result, and if the fourth set value (6.1 mmHg) <the fourth detection result, the CPU (37) outputs a signal, The diagnostic result of No. 4 is displayed (see FIG. 7) and printed. Fourth set value ≧ fourth
If the detection result is, the CPU (37) makes the following comparison. Here, when a refrigerant temperature detector is used as the fourth detector (30), the set value is set to 4.1 ° C, and when the fourth detection result exceeds this value, the CPU (37) sends a signal. The output and display device (42) displays and prints the fourth diagnosis result.
冷媒液温度検知器（31）と冷却水出口温度検知器（32）
とからの検知結果を入力するとCPU（37）はまず両検知
結果の温度差（これを第５の検知結果とする）を計算す
る。次にCPU（37）は第５の設定値と前記第５の検知結
果とを比較し、第５の設定値（2.8℃）＜第５の検知結
果ならばCPU（37）は信号を出力し、第５の診断結果を
表示（第８図参照）および印刷させる。第５の設定値≧
第５の検知結果ならばCPU（37）は信号を出力し、第６
の診断結果を表示（第９図参照）および印刷させる。Refrigerant liquid temperature detector (31) and cooling water outlet temperature detector (32)
When the detection results from and are input, the CPU (37) first calculates the temperature difference between these detection results (this is the fifth detection result). Next, the CPU (37) compares the fifth set value with the fifth detection result, and if the fifth set value (2.8 ° C) <the fifth detection result, the CPU (37) outputs a signal. , The fifth diagnostic result is displayed (see FIG. 8) and printed. Fifth set value ≧
If it is the fifth detection result, the CPU (37) outputs a signal and the sixth
The diagnostic result of is displayed (see FIG. 9) and printed.
尚、本発明異常診断装置において、前記第１から第５の
検知結果と第１から第５の設定値とをCPU（37）がこの
順番で比較するので効率良く異常原因を特定できる。こ
の理由は以下の通りである。例えば、蒸発器内圧力が設
定値範囲外の高圧力だと検知されたとする。しかし、こ
の原因は必ずしも抽気不足によるものとは限らない。な
ぜならばこの他に、冷却水系統異常（冷却水流量不足）
クーリングタワー系統異常（冷却水入口温度上昇）、バ
ーナー異常（燃料供給過剰）の原因が考えられる。この
ため、前記３つの原因を再び検討し始めなければ異常の
原因を特定できないこともあった。本発明は、上記のよ
うなことがないように検知の順序も考慮して、異常の原
因を特定できるようにしたものである。In the abnormality diagnosing device of the present invention, the CPU (37) compares the first to fifth detection results with the first to fifth set values in this order, so that the cause of the abnormality can be efficiently specified. The reason for this is as follows. For example, assume that it is detected that the pressure inside the evaporator is a high pressure outside the set value range. However, this is not always due to lack of extraction air. In addition to this, there is an abnormality in the cooling water system (insufficient cooling water flow rate)
Possible causes include cooling tower system abnormality (cooling water inlet temperature rise) and burner abnormality (excessive fuel supply). For this reason, the cause of the abnormality may not be identified unless the above three causes are considered again. The present invention is capable of identifying the cause of an abnormality in consideration of the order of detection so as not to occur as described above.
（ト）発明の効果 本発明は以上の如くであり、本発明異常診断装置を有し
ている吸収冷凍機の異常発生時において、本発明吸収冷
凍機の異常診断装置は異常の原因を特定できる。(G) Effect of the Invention The present invention is as described above, and when an abnormality occurs in the absorption refrigerator having the abnormality diagnosis device of the present invention, the abnormality diagnosis device of the absorption refrigerator of the present invention can specify the cause of the abnormality. .
第１図は本発明の異常診断装置を有した吸収冷凍機の概
略構成説明図、第２図は本発明による吸収冷凍機の異常
診断装置のブロック説明図、第３図は本発明吸収冷凍機
の異常診断装置のフローチャート図、第４図は表示装置
の表示の一例を示す説明図、第５図は表示装置の他の例
を示す説明図、第６図は同じく他の説明図、第７図は同
じく他の説明図、第８図は同じく他の説明図、第９図は
同じく他の説明図である。 （25）……圧力検知器、（26）……吸収液温度検知器、
（27）……第１の検知器、（28）……第２の検知器、
（29）……第３の検知器、（30）……第４の検知器、
（31）……冷媒液温度検知器、（32）……冷却水出口温
度検知器、（33）……異常診断装置、（34）……ROM、
（35）……RAM、（37）……CPU、（42）……表示装置、
（43）……プリンター。FIG. 1 is a schematic configuration explanatory view of an absorption refrigerator having an abnormality diagnosis device of the present invention, FIG. 2 is a block explanatory diagram of an abnormality diagnosis device of an absorption refrigerator according to the present invention, and FIG. 3 is an absorption refrigerator of the present invention. FIG. 4 is a flowchart of the abnormality diagnosing device, FIG. 4 is an explanatory view showing an example of display on the display device, FIG. 5 is an explanatory view showing another example of the display device, FIG. FIG. 8 is another explanatory diagram, FIG. 8 is another explanatory diagram, and FIG. 9 is another explanatory diagram. (25) …… Pressure detector, (26) …… Absorbing liquid temperature detector,
(27) …… First detector, (28) …… Second detector,
(29) …… Third detector, (30) …… Fourth detector,
(31) …… Refrigerant temperature detector, (32) …… Cooling water outlet temperature detector, (33) …… Abnormality diagnostic device, (34) …… ROM,
(35) …… RAM, (37) …… CPU, (42) …… Display device,
(43) …… Printer.
Claims (1)
器及びこれらを配管接続して冷凍サイクルを構成し、更
にこのサイクルからの異常信号によって運転を停止させ
る安全装置を備えている吸収冷凍機において、冷却水流
量を検知する第１の検知手段と、冷却水入口温度を検知
する第２の検知手段と、燃料流量を検知する第３の検知
手段と、蒸発器内の圧力あるいは冷媒液温度を検知する
第４の検知手段と、凝縮器内冷媒温度と冷却水出口温度
との差を検知する第５の検知手段と、冷却水流量の第１
の設定値、冷却水温度の第２の設定値、燃料流量の第３
の設定値、蒸発器内の圧力あるいは冷媒液温度の第４の
設定値、凝縮器内冷媒温度と冷却水出口温度との差の第
５の設定値、第１の検知手段の検知結果と第１の設定値
とを比較した第１の診断結果、第２の検知手段の検知結
果と第２の設定値とを比較した第２の診断結果、第３の
検知手段の検知結果と第３の設定値とを比較した第３の
診断結果、第４の検知手段の検知結果と第４の設定値と
を比較した第４の診断結果及び第５の検知手段の検知結
果と第５の設定値とを比較した第５、第６の診断結果を
記憶する記憶手段と、これらの診断結果のいずれかを表
示する表示手段とを供え、予め前記記憶手段に記憶され
た第１乃至第５の設定値と前記第１乃至第５の検知結果
とを第１の設定値と第１の検知結果との比較乃至第５の
設定値と第５の検知結果との比較の順で比較し、異常が
あるときは、前記表示手段に信号を出力し前記診断結果
を前記表示手段に表示させる演算手段とを設けたことを
特徴とする吸収冷凍機の異常診断装置。1. A regenerator, a condenser, an evaporator, an absorber, a heat exchanger, and a refrigeration cycle configured by connecting these together to form a refrigeration cycle, and further provided with a safety device for stopping the operation by an abnormal signal from the cycle. In the absorption refrigerating machine, the first detecting means for detecting the cooling water flow rate, the second detecting means for detecting the cooling water inlet temperature, the third detecting means for detecting the fuel flow rate, and the pressure in the evaporator Alternatively, fourth detecting means for detecting the refrigerant liquid temperature, fifth detecting means for detecting the difference between the refrigerant temperature in the condenser and the cooling water outlet temperature, and the first cooling water flow rate
Setting value, cooling water temperature second setting value, fuel flow rate third setting value
Set value, a fourth set value of the pressure or refrigerant liquid temperature in the evaporator, a fifth set value of the difference between the refrigerant temperature in the condenser and the cooling water outlet temperature, the detection result of the first detection means and the The first diagnostic result obtained by comparing the set value of 1 with the second diagnostic result obtained by comparing the detected result of the second detecting means with the second set value, the obtained result of the third detecting means with the third Third diagnostic result comparing set value, fourth diagnostic result comparing fourth detecting value and fourth detecting value, and fifth detecting means detecting result and fifth setting value The first to fifth settings stored in advance in the storage means are provided with storage means for storing the fifth and sixth diagnosis results obtained by comparing with each other and display means for displaying any one of these diagnosis results. The value and the first to fifth detection results are compared with the first set value and the first detection result to the fifth set value and the fifth detection result. Comparison in the order of comparison with the results, and if there is an abnormality, an arithmetic means for outputting a signal to the display means and displaying the diagnosis result on the display means is provided. Diagnostic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19488787A JPH07122529B2 (en) | 1987-08-04 | 1987-08-04 | Absorption refrigerator abnormality diagnosis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19488787A JPH07122529B2 (en) | 1987-08-04 | 1987-08-04 | Absorption refrigerator abnormality diagnosis device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6438574A JPS6438574A (en) | 1989-02-08 |
| JPH07122529B2 true JPH07122529B2 (en) | 1995-12-25 |
Family
ID=16331977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19488787A Expired - Fee Related JPH07122529B2 (en) | 1987-08-04 | 1987-08-04 | Absorption refrigerator abnormality diagnosis device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07122529B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04106381A (en) * | 1990-08-28 | 1992-04-08 | Tokyo Electric Co Ltd | Cooling device |
| EP0621497B1 (en) * | 1993-04-21 | 1998-12-02 | Nitto Seiko Co., Ltd. | Self-locking nut for eye glasses, nut tightener, and nut supplier |
-
1987
- 1987-08-04 JP JP19488787A patent/JPH07122529B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6438574A (en) | 1989-02-08 |
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| LAPS | Cancellation because of no payment of annual fees |