JPH0445744B2 - - Google Patents
Info
- Publication number
- JPH0445744B2 JPH0445744B2 JP6998785A JP6998785A JPH0445744B2 JP H0445744 B2 JPH0445744 B2 JP H0445744B2 JP 6998785 A JP6998785 A JP 6998785A JP 6998785 A JP6998785 A JP 6998785A JP H0445744 B2 JPH0445744 B2 JP H0445744B2
- Authority
- JP
- Japan
- Prior art keywords
- solution
- temperature generator
- solution pump
- high temperature
- pump
- 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
Links
- 239000003507 refrigerant Substances 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 description 20
- 238000009413 insulation Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は二重効用吸収冷凍機の制御方法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for controlling a dual-effect absorption refrigerator.
従来の二重効用吸収冷凍機は、例えば第５図に
示す如く、吸収器Ａ、蒸発器Ｅ、高温発生器
GH、低温発生器GL、凝縮器Ｃ、溶液熱交換器
XH、XL、溶液ポンプSP、冷媒ポンプRPが備え
られ、溶液経路として、２１，２２，２３，２
４，２５，２６，２７、冷媒経路として１０，１
１，１２，１３、オーバーフロー管２０が前記各
機器を接続して冷凍サイクルを構成している。な
お１は冷水管、２，３は冷却水管、４は熱源供給
管、５は冷水測温体、６は温度調節器、Ｈは熱源
調節弁、３０，３１は溶液ポンプ発停用レベルス
イツチの電極棒である。
A conventional dual-effect absorption refrigerator, for example, as shown in FIG.
GH, low temperature generator GL, condenser C, solution heat exchanger
XH, XL, solution pump SP, and refrigerant pump RP are provided, and the solution paths are 21, 22, 23, 2.
4, 25, 26, 27, 10, 1 as refrigerant path
1, 12, 13, and an overflow pipe 20 connect the above-mentioned devices to form a refrigeration cycle. Note that 1 is a cold water pipe, 2 and 3 are cooling water pipes, 4 is a heat source supply pipe, 5 is a cold water thermometer, 6 is a temperature controller, H is a heat source control valve, and 30 and 31 are level switches for starting and stopping the solution pump. It is an electrode rod.
このような冷凍サイクルにおいて、運転開始時
には高温発生器GHの圧力が低く、溶液の高温発
生器GHから低温発生器GLへの循環が悪いため、
高温発生器GHに溶液が溜り、吸収器Ａ内の溶液
量が不足して溶液ポンプSPがキヤビテーシヨン
を起こしたり、高温発生器GH内の溶液が冷媒側
に混入するおそれがあつた。従つて高温発生器
GHに溶液ポンプSP発停用のレベルスイツチ例え
ば２本の電極棒３０，３１を取り付け、溶液レベ
ルが一方の上限用の電極棒３０まで上昇して接触
したとき、その導通により溶液ポンプSPを停止
させ、液面が低下し、他方の下限用の電極棒３１
のレベル以下に下がり、電極棒３１との導通がな
くなつたとき溶液ポンプSPを再起動するように
していた。 In such a refrigeration cycle, the pressure in the high temperature generator GH is low at the start of operation, and the circulation of the solution from the high temperature generator GH to the low temperature generator GL is poor.
Solution accumulated in the high temperature generator GH, and there was a risk that the amount of solution in the absorber A would be insufficient, causing cavitation in the solution pump SP, or that the solution in the high temperature generator GH would mix into the refrigerant side. Therefore high temperature generator
A level switch for starting and stopping the solution pump SP, for example, two electrode rods 30 and 31, is attached to the GH, and when the solution level rises to one of the electrode rods 30 for the upper limit and makes contact, the solution pump SP is stopped by the conduction. As the liquid level decreases, the other lower limit electrode rod 31
The solution pump SP is restarted when the voltage drops below the level of , and the electrical connection with the electrode rod 31 is lost.
第６図は高温発生器GHの適所に取り付けられ
た溶液ポンプ発停用のレベルスイツチの一例を示
すものであつて、電極棒３０は、上部液面検出用
（停止用）であり、絶縁気密用のパツキン３２を
介してケーシングに取り付けられている。電極棒
３１は下部液面検出用（再起動用）であつて、絶
縁気密用パツキン３２を介してケーシングに取り
付けられている。 Figure 6 shows an example of a level switch for starting and stopping the solution pump installed at the appropriate location of the high temperature generator GH. It is attached to the casing via a gasket 32. The electrode rod 31 is for detecting the lower liquid level (for restarting) and is attached to the casing via an insulating airtight packing 32.
第７図はシーケンス回路であつて、８８SPは
溶液ポンプ用電磁開閉器、E1は電極棒３０が液
面と導通がある場合にオン、E2は電極棒３１が
液面と導通がある場合にオンとなるスイツチであ
る。 Figure 7 is a sequence circuit, where 88SP is an electromagnetic switch for the solution pump, E 1 is turned on when the electrode rod 30 is electrically connected to the liquid surface, and E 2 is turned on when the electrode rod 31 is electrically conductive to the liquid surface. This is a switch that turns on.
しかし、このような従来の溶液ポンプ発停用レ
ベルスイツチを用いた装置においては、電極棒３
０，３１が絶縁気密用のパツキン３２を介して筐
体に取り付けられていてもしばしば絶縁不良を起
こすことがあつた。そのために例えば冷凍機運転
中に液面が上限に達し、電極棒３０の導通により
溶液ポンプSPが停止し、液面が次第に降下した
とき、電極棒３１が絶縁不良状態であると、液面
が電極棒３１を離れて下降してもスイツチE2が
オンのまま、従つてリレーRY2及びリレーRYも
オンのままであるから溶液ポンプSPは停止状態
のままである。また電極棒３０に絶縁不良があつ
た場合でも溶液ポンプSPは停止したままだから
液面が異常低下し、高温発生器GH内溶液の濃縮
が異常に進行し、結晶を生ずる危険があるという
問題点があつた。
However, in a device using such a conventional level switch for starting and stopping the solution pump, the electrode rod 3
Even if the wires 0 and 31 were attached to the housing via the insulating and airtight packing 32, insulation failures often occurred. Therefore, for example, when the liquid level reaches the upper limit while the refrigerator is operating, the solution pump SP stops due to conduction of the electrode rod 30, and the liquid level gradually falls.If the electrode rod 31 is in a poor insulation state, the liquid level will drop. Even if the electrode rod 31 is left and lowered, the switch E2 remains on, and therefore the relays RY2 and RY also remain on, so the solution pump SP remains in a stopped state. Furthermore, even if there is an insulation failure in the electrode rod 30, the solution pump SP remains stopped, which causes the liquid level to drop abnormally, causing abnormal concentration of the solution in the high-temperature generator GH, which poses the risk of forming crystals. It was hot.
本発明は従来の溶液ポンプ発停用レベルスイツ
チが絶縁不良で短絡状態になつたときにおいても
溶液の結晶化の危険を防ぎ前記問題点を解決した
吸収冷凍機の制御方法を提供しようとすることを
目的とするものである。 An object of the present invention is to provide a control method for an absorption refrigerating machine that prevents the risk of solution crystallization even when a conventional level switch for starting and stopping a solution pump becomes short-circuited due to poor insulation and solves the above-mentioned problems. The purpose is to
すなわち、溶液ポンプが停止した時には、停止
レベルにある液面は所定の時間経過すると通常は
それ以下に下がることに着目し、タイマーを併用
して電極棒の絶縁不良を監視して万一絶縁不良が
発生した場合には警報を発すると共に冷凍機を停
止させるようにしたものである。 In other words, we focused on the fact that when the solution pump stops, the liquid level that is at the stop level usually drops below that level after a predetermined period of time, and we also use a timer to monitor the insulation of the electrode rod and detect any insulation failure. If this occurs, an alarm is issued and the refrigerator is stopped.
本発明は、上記の問題点を解決するための手段
として吸収器、高温発生器、低温発生器、凝縮
器、蒸発器、溶液熱交換器、溶液ボンプ、冷媒ポ
ンプ及びこれらの機器を接続する溶液経路及び冷
媒経路を有し、高温発生器内に溶液ポンプ発停用
レベルスイツチを備えて溶液ポンプの発停を行う
ようにした吸収冷凍機の制御方法において、前記
高温発生器内の溶液レベルが上限に達し、前記溶
液ポンプ停止用レベルスイツチがオンとなつて溶
液ポンプが停止した後、所定の時間経過した後、
前記スイツチがなおもオンの状態であるとき、警
報を発するか、冷凍機の運転を停止させるように
したことを特徴とする吸収冷凍機の制御方法を提
供せんとするものである。
The present invention provides an absorber, a high temperature generator, a low temperature generator, a condenser, an evaporator, a solution heat exchanger, a solution pump, a refrigerant pump, and a solution connecting these devices as a means for solving the above problems. In the method for controlling an absorption refrigerator, the absorption refrigerator has a solution level switch and a refrigerant channel, and a level switch for starting and stopping the solution pump is provided in the high temperature generator to start and stop the solution pump. After a predetermined period of time has passed after the upper limit is reached and the level switch for stopping the solution pump is turned on and the solution pump is stopped,
It is an object of the present invention to provide a method for controlling an absorption refrigerator, characterized in that when the switch is still on, an alarm is issued or the operation of the refrigerator is stopped.
また、高温発生器内の圧力を検出し、この圧力
がある所定値以上のときに所定時間経過後に冷凍
機を停止したものである。さらにまた、溶液ポン
プが停止した時の高温発生器内の圧力に応じてタ
イマーの設定時間を変化させるようにしたもので
ある。 Further, the pressure inside the high temperature generator is detected, and when the pressure exceeds a certain predetermined value, the refrigerator is stopped after a predetermined period of time has elapsed. Furthermore, the set time of the timer is changed depending on the pressure inside the high temperature generator when the solution pump is stopped.
本発明は、溶液ポンプが停止したときは、停止
レベルにある液面は所定の時間経過すれば必ず停
止レベルよりも下降してゆくことに着目してなさ
れたもので、タイマーを併用して電極棒の絶縁不
良を監視し、溶液ポンプが停止した後所定の時間
経つてもなお導通が見られるときは、レベルスイ
ツチが電極棒の場合は絶縁不良と判断し、レベル
スイツチがフロート式の場合はフロートが動作不
良であると判断し、警報を発し或いは冷凍機を停
止させ、安全な運転を確保するようにしたもので
ある。 The present invention was made based on the fact that when a solution pump stops, the liquid level at the stop level will always fall below the stop level after a predetermined period of time has passed. Monitor the rod for poor insulation, and if continuity is still observed after a predetermined period of time has passed after the solution pump has stopped, it is determined that there is poor insulation if the level switch is an electrode rod, or if the level switch is a float type. It determines that the float is malfunctioning and issues an alarm or stops the refrigerator to ensure safe operation.
本発明の実施例を図面を参照して説明する。 Embodiments of the present invention will be described with reference to the drawings.
第１図において、３５は高温発生器GHの内圧
を検出する圧力検出器、３６は高温発生器GHに
おいて発生した冷媒の凝縮温度を検出する温度検
出器である。３７はタイマー３８を備え、電極棒
３０，３１からの導通信号、圧力検出器３５から
の圧力信号或いは温度検出器３６からの温度信号
を受け、警報器３９を作動せしめて警報（光や
音）を発せしめたり、発停指令装置４０に信号を
送つて、適当な時点で高温発生器GHの熱源調節
弁Ｈを閉じ、溶液ポンプSP、冷媒ポンプRPを停
止するなどして冷凍機を停止せしめる作用を有す
る制御装置である。 In FIG. 1, 35 is a pressure detector that detects the internal pressure of the high temperature generator GH, and 36 is a temperature detector that detects the condensation temperature of the refrigerant generated in the high temperature generator GH. 37 is equipped with a timer 38, which activates an alarm 39 and issues an alarm (light or sound) upon receiving the conductive signal from the electrode rods 30, 31, the pressure signal from the pressure detector 35, or the temperature signal from the temperature detector 36. or send a signal to the start/stop command device 40, close the heat source control valve H of the high temperature generator GH at an appropriate time, stop the solution pump SP and the refrigerant pump RP, etc., and stop the refrigerator. It is a control device that has an effect.
第２図はシーケンス例を示す。３Ｘは補助リレ
ー、PB１は停止ボタン、PB２は運転ボタン、Ｔ
はタイマー、Ｌは警報ランプ、Bzは警報ブザー
である。 FIG. 2 shows an example sequence. 3X is auxiliary relay, PB1 is stop button, PB2 is run button, T
is a timer, L is a warning lamp, and B z is a warning buzzer.
高温発生器GH内の液レベルが上限に達し、電
極棒３０に接触するとスイツチE1が入り、溶液
ポンプSPが停止し、同時にタイマー３８(T)が起
動する。溶液ポンプSPが停止すれば液面は下が
るので、電極棒３０から離れスイツチE1はオフ
になる筈であるが、電極棒３０が絶縁不良を起こ
すと、液面との接触はなくなつているにも拘らず
スイツチE1はオンのままである。 When the liquid level in the high temperature generator GH reaches the upper limit and contacts the electrode rod 30, the switch E1 is turned on, the solution pump SP is stopped, and at the same time the timer 38(T) is activated. When the solution pump SP stops, the liquid level will drop, so it should move away from the electrode rod 30 and turn off the switch E1 , but if the electrode rod 30 develops an insulation failure, it will no longer be in contact with the liquid level. Despite this, switch E1 remains on.
この状態で液面がさらに下がつて下限以下とな
り電極棒３１の下端よりも下降して、スイツチ
E2がオフとなつても、スイツチE1がオンの状態
なので溶液ポンプSPは停止したままである。 In this state, the liquid level further drops below the lower limit and drops below the lower end of the electrode rod 31, causing the switch to turn off.
Even if E2 is turned off, the solution pump SP remains stopped because the switch E1 is on.
しかし本実施例においては、タイマー３８(T)
が、所定の時間T1後に作動し、補助リレー３Ｘ
（第１図で発停指令装置４０の中に含まれる）を
オフとし、熱源供給停止、溶液ポンプSP停止、
冷媒ポンプRP停止などを適時行つて冷凍機を異
常状態になる前に停止せしめることができる。 However, in this embodiment, the timer 38(T)
is activated after a predetermined time T1 , and the auxiliary relay 3X
(included in the start/stop command device 40 in Fig. 1) is turned off, the heat source supply is stopped, the solution pump SP is stopped,
By stopping the refrigerant pump RP in a timely manner, the refrigerator can be stopped before it becomes abnormal.
溶液ポンプSP停止後の液面の降下速度は高圧
発生器GH内の圧力Ｐに関係する。或る程度の圧
力p0以下であると低温発生器GLとの圧力差が小
となり溶液の移送が行われず、従つて液面の降下
速度も僅少となる。従つて圧力ｐが低い場合に
は、液面が下限まで十分降下しきれないうちにタ
イマー３８が作用して溶液ポンプSPを必要以上
の頻度で再起動せしめることになる。 The rate of drop in the liquid level after the solution pump SP is stopped is related to the pressure P in the high pressure generator GH. If the pressure is below a certain level p 0 , the pressure difference with the low temperature generator GL will be small, the solution will not be transferred, and the rate of drop of the liquid level will therefore be small. Therefore, when the pressure p is low, the timer 38 operates and the solution pump SP is restarted more frequently than necessary before the liquid level has sufficiently fallen to the lower limit.
これを防ぐために、制御装置３７において、タ
イマー３８の起動後、高温発生器GHの内圧ｐが
ｐ＞p0なる期間のみの時間を集計し、その集計が
所定の時間T2に達したときに、なおスイツチE1
がオンの状態であるならタイマー３８を作動せし
めて警報を発し、冷凍機を停止せしめるようにす
る。 In order to prevent this, in the control device 37, after the timer 38 is started, the time is totaled only during the period when the internal pressure p of the high temperature generator GH is p> p0 , and when the total reaches a predetermined time T2 , , Nao Switch E 1
If it is on, the timer 38 is activated to issue an alarm and stop the refrigerator.
また、この所定の時間T2を例えば第３図に示
す如く溶液ポンプSPが停止した時点における高
圧発生器GHの圧力に応じて設定するようにして
もよい。 Further, the predetermined time T2 may be set depending on the pressure of the high pressure generator GH at the time when the solution pump SP is stopped, as shown in FIG. 3, for example.
また、高圧発生器GHの圧力を圧力検出器３５
により直接検出する代わりに、この圧力に相関性
のある状態量、例えば温度検出器３６による冷媒
凝縮温度を検出することにより間接的に検出して
もよい。 In addition, the pressure of the high pressure generator GH is detected by the pressure detector 35.
Instead of directly detecting this pressure, it may be detected indirectly by detecting a state quantity that is correlated with this pressure, for example, the refrigerant condensation temperature by the temperature sensor 36.
さらに、タイマー３８が起動してから液面が下
限に達するまでの時間は、高圧発生器GHの時々
刻々の圧力に関係することに着目し、第４図に示
す如く、ｐ＞p0なる部分の面積の総和が或る所定
の値Ａに達する時間T3、即ち、
∫T3
（ｐ−p0）dt＝Ａ
ｏ
となるような時間T3が経過したときタイマー３
８を作動せしめるようにしてもよい。 Furthermore, focusing on the fact that the time from when the timer 38 starts until the liquid level reaches the lower limit is related to the momentary pressure of the high pressure generator GH, as shown in FIG . Timer 3 _ _
8 may be activated.
以上の実施例で、T1，T2，T3は液面が降下し
て下限（電極棒３１の下端）からさらに下がつた
ときに、かつ、あまり下がり過ぎないときにタイ
マー３８が作用することを目標に、実験的、経験
的或いは計算により決めておくのが好ましい。 In the above embodiment, the timer 38 operates at T 1 , T 2 , and T 3 when the liquid level falls further below the lower limit (lower end of the electrode rod 31) and when it does not fall too much. It is preferable to decide experimentally, empirically, or by calculation with this goal in mind.
なお、以上の実施例は電極棒３１に絶縁不良が
生じた場合においても同様の効果がある。 Note that the above embodiment has the same effect even when insulation failure occurs in the electrode rod 31.
また、液面レベルスイツチがフロート式の場合
に、フロートの動作の不具合で正常な信号が出な
い場合においても本発明が適用され効果を奏す
る。 The present invention is also applicable and effective even when the liquid level switch is of a float type and a normal signal is not output due to a malfunction in the operation of the float.
本発明により、電極棒の絶縁不良、フロートの
動作不良など、レベルスイツチの動作不良の場合
においても、溶液ポンプの再起動を確実に行い、
溶液量不足による危険を防止することができる吸
収冷凍機の制御方法を提供することができ、実用
上極めて大なる効果を奏する。
According to the present invention, even in the case of malfunction of the level switch such as poor insulation of the electrode rod or malfunction of the float, the solution pump can be reliably restarted.
It is possible to provide a control method for an absorption refrigerator that can prevent dangers due to insufficient solution volume, and has extremely great practical effects.
第１〜４図は本発明の実施例に関するもので、
第１図はフロー図、第２図はそのシーケンス図、
第３図は別の実施例のタイマー設定時間と高温発
生器内圧との関係グラフ、第４図は別の実施例の
タイマー設定時間と高温発生器の内圧との関係グ
ラフ、第５〜７図は従来例に関するもので、第５
図はフロー図、第６図はレベルスイツチ詳細図、
第７図はそのシーケンス図である。
１…冷水管、２，３…冷却水管、４…熱源供給
管、５…冷水測温体、６…温度調節器、１０，１
１，１２，１３…冷媒経路、２０…オーバーフロ
ー管、２１，２２，２３，２４，２５，２６，２
７…溶液経路、３０，３１…電極棒、３２…パツ
キン、３５…圧力検出器、３６…温度検出器、３
７…制御装置、３８…タイマー、３９…警報器、
４０…発停指令装置。
1 to 4 relate to embodiments of the present invention,
Figure 1 is a flow diagram, Figure 2 is a sequence diagram,
Fig. 3 is a graph of the relationship between the timer setting time and the internal pressure of the high temperature generator in another embodiment, Fig. 4 is a graph of the relationship between the timer setting time and the internal pressure of the high temperature generator in another embodiment, and Figs. 5 to 7 is related to the conventional example, and the fifth
The figure is a flow diagram, Figure 6 is a detailed diagram of the level switch,
FIG. 7 is a sequence diagram thereof. 1... Cold water pipe, 2, 3... Cooling water pipe, 4... Heat source supply pipe, 5... Cold water thermometer, 6... Temperature controller, 10, 1
1, 12, 13... Refrigerant path, 20... Overflow pipe, 21, 22, 23, 24, 25, 26, 2
7... Solution path, 30, 31... Electrode rod, 32... Packing, 35... Pressure detector, 36... Temperature detector, 3
7...Control device, 38...Timer, 39...Alarm,
40...Start/stop command device.
Claims (1)
蒸発器、溶液熱交換器、溶液ポンプ、冷媒ポンプ
及びこれらの機器を接続する溶液経路及び冷媒経
路を有し、高温発生器内に溶液ポンプ発停用レベ
ルスイツチを備えて溶液ポンプの発停を行うよう
にした吸収冷凍機の制御方法において、前記高温
発生器内の溶液レベルが上限に達し、前記溶液ポ
ンプ停止用レベルスイツチがオンとなつて溶液ポ
ンプが停止した後、所定の時間T1だけ経過した
後、前記スイツチがなおもオンの状態であると
き、警報を発するか冷凍機の運転を停止させるよ
うにしたことを特徴とする吸収冷凍機の制御方
法。 ２ 吸収器、高温発生器、低温発生器、凝縮器、
蒸発器、溶液熱交換器、溶液ポンプ、冷媒ポンプ
及びこれらの機器を接続する溶液経路及び冷媒経
路を有し、高温発生器内に溶液ポンプ発停用レベ
ルスイツチを備えて溶液ポンプの発停を行うよう
にした吸収冷凍機の制御方法において、前記高温
発生器内の溶液レベルが上限に達し、前記溶液ポ
ンプ停止用レベルスイツチがオンとなつて溶液ポ
ンプが停止した後、高温発生器内の圧力が所定値
以上を示している時間の総和が所定の時間T2に
達しても前記スイツチがなおもオンの状態のと
き、警報を発するか冷凍機の運転を停止させるよ
うにしたことを特徴とする吸収冷凍機の制御方
法。 ３ 前記所定の時間T2を、前記溶液ポンプが停
止した時点における前記高温発生器内の圧力に直
接的又は間接的に対応して設定するようにした特
許請求の範囲第２項記載の方法。 ４ 吸収器、高温発生器、低温発生器、凝縮器、
蒸発器、溶液熱交換器、溶液ポンプ、冷媒ポンプ
及びこれらの機器を接続する溶液経路及び冷媒経
路を有し、高温発生器内に溶液ポンプ発停用レベ
ルスイツチを備えて溶液ポンプの発停を行うよう
にした吸収冷凍機の制御方法において、前記高温
発生器内の溶液レベルが上限に達し、前記溶液ポ
ンプ停止用レベルスイツチがオンとなつて溶液ポ
ンプが停止した後、その停止した時点以後の前記
高温発生器内の圧力ｐが時間ｔの関数であり、 p0を溶液を前記高温発生器から前記低温発生器
に押し出し得る、或る所定の基準圧力とし、Ａを
或る所定の値とするとき、 ∫T3 （ｐ−p0）dt＝Ａ ｏ なる時間T3に達しても前記スイツチがなおもオ
ンの状態のとき、警報を発するか、冷凍機の運転
を停止せしめることを特徴とする吸収冷凍機の制
御方法。[Claims] 1. Absorber, high temperature generator, low temperature generator, condenser,
It has an evaporator, a solution heat exchanger, a solution pump, a refrigerant pump, and a solution path and a refrigerant path that connect these devices, and is equipped with a level switch for starting and stopping the solution pump in the high temperature generator. In the absorption chiller control method, after the solution level in the high temperature generator reaches the upper limit and the solution pump stop level switch is turned on to stop the solution pump, the solution pump is stopped for a predetermined period of time T1 . A method for controlling an absorption refrigerator, characterized in that if the switch is still on after a certain period of time has elapsed, an alarm is issued or the operation of the refrigerator is stopped. 2 Absorber, high temperature generator, low temperature generator, condenser,
It has an evaporator, a solution heat exchanger, a solution pump, a refrigerant pump, and a solution path and a refrigerant path that connect these devices, and is equipped with a level switch for starting and stopping the solution pump in the high temperature generator. In the absorption chiller control method, after the solution level in the high-temperature generator reaches the upper limit and the solution pump stop level switch is turned on to stop the solution pump, the pressure in the high-temperature generator is reduced. If the switch is still in the on state even after the sum of the times during which T is greater than or equal to a predetermined value reaches a predetermined time T2 , an alarm is issued or the operation of the refrigerator is stopped. How to control an absorption refrigerator. 3. The method according to claim 2, wherein the predetermined time T2 is set in direct or indirect correspondence to the pressure within the high temperature generator at the time when the solution pump is stopped. 4 Absorber, high temperature generator, low temperature generator, condenser,
It has an evaporator, a solution heat exchanger, a solution pump, a refrigerant pump, and a solution path and a refrigerant path that connect these devices, and is equipped with a level switch for starting and stopping the solution pump in the high temperature generator. In the absorption chiller control method, after the solution level in the high temperature generator reaches the upper limit and the solution pump stop level switch is turned on to stop the solution pump, The pressure p in the high temperature generator is a function of time t, p 0 is some predetermined reference pressure at which the solution can be forced from the high temperature generator to the low temperature generator, and A is some predetermined value. When the switch is still on even after reaching the time T3 such that ∫T3 (p- p0 )dt=Ao, an alarm is issued or the operation of the refrigerator is stopped. A method of controlling an absorption refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6998785A JPS61231360A (en) | 1985-04-04 | 1985-04-04 | Method of controlling absorption refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6998785A JPS61231360A (en) | 1985-04-04 | 1985-04-04 | Method of controlling absorption refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61231360A JPS61231360A (en) | 1986-10-15 |
| JPH0445744B2 true JPH0445744B2 (en) | 1992-07-27 |
Family
ID=13418527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6998785A Granted JPS61231360A (en) | 1985-04-04 | 1985-04-04 | Method of controlling absorption refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61231360A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2675367B2 (en) * | 1988-11-18 | 1997-11-12 | 三洋電機株式会社 | Absorption refrigerator |
| JP5261118B2 (en) * | 2008-09-30 | 2013-08-14 | 三洋電機株式会社 | Absorption type water heater |
-
1985
- 1985-04-04 JP JP6998785A patent/JPS61231360A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61231360A (en) | 1986-10-15 |
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