JP2647937B2 - Absorption refrigerator - Google Patents
Absorption refrigeratorInfo
- Publication number
- JP2647937B2 JP2647937B2 JP30635688A JP30635688A JP2647937B2 JP 2647937 B2 JP2647937 B2 JP 2647937B2 JP 30635688 A JP30635688 A JP 30635688A JP 30635688 A JP30635688 A JP 30635688A JP 2647937 B2 JP2647937 B2 JP 2647937B2
- Authority
- JP
- Japan
- Prior art keywords
- regenerator
- temperature
- pump
- absorbent
- absorber
- 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 - Fee Related
Links
- 238000010521 absorption reaction Methods 0.000 title claims description 77
- 239000007788 liquid Substances 0.000 claims description 75
- 230000002745 absorbent Effects 0.000 claims description 64
- 239000002250 absorbent Substances 0.000 claims description 64
- 239000006096 absorbing agent Substances 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 description 17
- 230000000630 rising effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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に関し、特に起動時吸収液ポンプ
の作動が再生器の加熱動作より遅延する吸収冷凍機に関
する。The present invention relates to an absorption chiller, and more particularly to an absorption chiller in which the operation of the absorbent pump at startup is delayed from the heating operation of the regenerator.
（ロ）従来の技術 例えば特公昭58−36264号公報には、吸収冷凍機の起
動時に、吸収器から発生器への吸収液の流れを断って、
発生器を加熱し、発生器内の吸収液を予め昇温した後、
吸収液ポンプをすぐ運転状態にさせて吸収器から発生器
へ吸収液を流す起動装置が開示されいる。(B) Conventional technology For example, Japanese Patent Publication No. 58-36264 discloses that when the absorption refrigerator is started, the flow of the absorption liquid from the absorber to the generator is cut off.
After heating the generator and raising the temperature of the absorbent in the generator in advance,
An actuating device is disclosed in which the absorbent pump is immediately operated to flow the absorbent from the absorber to the generator.
又、特公昭62−52229号公報には吸収器と高温再生器
との間の吸収液配管に流量制御弁を設け、吸収冷凍機の
起動時、高温再生器内の吸収液温度が所定温度に達した
とき吸収液ポンプが起動され、その後、流量制御弁を所
定周期で開閉し、その後、開弁状態に保持される吸収冷
凍機が開示されている。そして、この吸収冷凍機では起
動時、高温再生器へ流れる吸収液の量を制御弁の開閉動
作により減少させ、立上り特性を改善することが可能に
なる。In Japanese Patent Publication No. Sho 62-52229, a flow control valve is provided in the absorbent pipe between the absorber and the high-temperature regenerator, and when the absorption refrigerator is started, the temperature of the absorbent in the high-temperature regenerator reaches a predetermined temperature. There is disclosed an absorption refrigerator in which an absorption pump is started when the temperature reaches the temperature, and thereafter, a flow control valve is opened and closed at a predetermined cycle, and thereafter, the valve is kept in an open state. Then, at the time of startup, the amount of the absorbing liquid flowing to the high-temperature regenerator can be reduced by opening and closing the control valve at the time of startup, and the rising characteristics can be improved.
（ハ）発明が解決しようとする課題 上記特公昭58−36264号公報に開示された吸収冷凍機
では、発生器温度が所定の温度（140℃ぐらい）に上昇
する迄は、吸収液ポンプによる吸収液の分離器への押上
げ量が多いため、この多い分の液がトラップを経由して
低温発生器へバイパスされる。これにより分離器液面が
制御されて、立上り時の吸収液の混入は防止できるが、
冷凍機の立上り特性（冷凍能力を発揮する迄の時間）が
悪くなる欠点がある。またトラップが閉塞故障すると、
この立上り時に吸収液の混入も生ずる虞れがある。(C) Problems to be Solved by the Invention In the absorption refrigerator disclosed in Japanese Patent Publication No. 58-36264, absorption by the absorption liquid pump is performed until the generator temperature rises to a predetermined temperature (about 140 ° C.). Since the amount of the liquid pushed up to the separator is large, the large amount of the liquid is bypassed to the low temperature generator via the trap. As a result, the liquid level of the separator is controlled, and the mixing of the absorbing liquid at the time of rising can be prevented.
There is a disadvantage that the rising characteristics of the refrigerator (time required for exhibiting the refrigerating capacity) are deteriorated. Also, if the trap has a blockage failure,
At the time of the rising, there is a possibility that the absorbing liquid may be mixed.
上記特公昭62−52229号公報に開示された吸収冷凍機
では、立上り特性を改善することができるが、吸収器か
ら高温再生器へ流れる吸収液を制御弁の開閉により制御
し、制御弁の閉時にも、吸収液ポンプが無駄に運転され
ると共に、吸収液ポンプから吸収液が流出しないため、
吸収液ポンプの温度が上昇して、長期間吸収冷凍機を使
用した場合、吸収液ポンプに故障が発生する虞れがあっ
た。In the absorption refrigerator disclosed in Japanese Patent Publication No. Sho 62-52229, the rising characteristics can be improved, but the absorption liquid flowing from the absorber to the high-temperature regenerator is controlled by opening and closing the control valve, and the control valve is closed. Sometimes, the absorbent pump is run wastefully, and the absorbent does not flow out of the absorbent pump.
When the temperature of the absorption liquid pump rises and the absorption refrigerator is used for a long time, there is a possibility that the absorption liquid pump may fail.
本発明は吸収冷凍機の起動時の立上り特性を向上させ
ると共に、吸収液ポンプの故障を防止することを目的と
する。SUMMARY OF THE INVENTION It is an object of the present invention to improve the startup characteristics of an absorption refrigerator at the time of startup and to prevent a failure of an absorption liquid pump.
（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、再生器（１），
（４）、凝縮器（５）、蒸発器（８）、及び吸収器
（９）をそれぞれ配管接続し、起動時吸収液ポンプ
（Ｐ）の動作を再生器の加熱動作より遅延させる遅延装
置（吸収液温度検出器）（26）を有して吸収冷凍機にお
いて、起動時、吸収器（９）から再生器（１）への吸収
液の流れを断って再生器（１）を加熱し、吸収液ポンプ
（Ｐ）の作動後、吸収液ポンプ（Ｐ）を所定時間発停さ
せ、その後連続運転させる制御装置を備えた吸収冷凍機
を提供するものである。(D) Means for solving the problem The present invention provides a regenerator (1),
(4) A delay device that connects the condenser (5), the evaporator (8), and the absorber (9) with respective pipes, and delays the operation of the absorbent pump (P) at the time of startup from the heating operation of the regenerator ( In the absorption refrigerator having the absorption liquid temperature detector (26), at the time of startup, the flow of the absorption liquid from the absorber (9) to the regenerator (1) is cut off to heat the regenerator (1), It is an object of the present invention to provide an absorption refrigerator equipped with a control device that starts and stops the absorption liquid pump (P) for a predetermined time after the operation of the absorption liquid pump (P), and then continuously operates the absorption liquid pump (P).
又、起動時、吸収器（９）から再生器（１）への吸収
液の流れを断って再生器（１）を加熱し、吸収液ポンプ
（Ｐ）の作動後、再生器（１）の吸収液温度が所定温度
になるまで吸収液ポンプ（Ｐ）を発停させ、その後連続
運転させる制御装置を備えた吸収冷凍機を提供するもの
である。Further, at the time of start-up, the flow of the absorbent from the absorber (9) to the regenerator (1) is cut off to heat the regenerator (1). It is an object of the present invention to provide an absorption refrigerator equipped with a control device for starting and stopping the absorption liquid pump (P) until the temperature of the absorption liquid reaches a predetermined temperature, and thereafter performing a continuous operation.
（ホ）作 用 吸収冷凍機の起動時、吸収器（９）から再生器（１）
への吸収液の流れを断って再生器（１）の加熱が行わ
れ、再生器（１）の吸収液温度の上昇が速くなり、さら
に、吸収液ポンプ（Ｐ）の運転が開始されて吸収器
（９）から再生器（１）へ吸収液が流れ始めてからは制
御装置の動作により所定時間吸収液ポンプ（Ｐ）が発停
し、その間、吸収器（９）から再生器（１）へ流れる吸
収液の量を減らすことができ、吸収液が短時間で温度上
昇し、通常運転に移るまでの時間を短縮することが可能
になり、又、再生器（１）から流出する吸収液の量が少
なくなり、吸収液の凝縮器（５）への流入を防止して冷
媒への混入を回避することが可能になる。さらに、起動
時、吸収液ポンプ（Ｐ）が閉切運転されることがなく、
吸収液ポンプ（Ｐ）の無駄な運転を回避すると共に、故
障を防止することが可能になる。(E) Operation When the absorption refrigerator is started, the absorber (9) is switched to the regenerator (1).
The regenerator (1) is heated by cutting off the flow of the absorbent to the regenerator (1), the temperature of the absorbent in the regenerator (1) rises faster, and the operation of the absorbent pump (P) is started to absorb the absorbent. After the absorption liquid starts flowing from the device (9) to the regenerator (1), the operation of the control device causes the absorption liquid pump (P) to start and stop for a predetermined time, during which the absorber (9) transfers to the regenerator (1). The amount of the absorbing liquid flowing can be reduced, the temperature of the absorbing liquid rises in a short time, and the time required to shift to the normal operation can be shortened, and the amount of the absorbing liquid flowing out of the regenerator (1) can be reduced. The amount is reduced, and it is possible to prevent the absorption liquid from flowing into the condenser (5) and to avoid mixing with the refrigerant. Furthermore, at the time of start-up, the absorption pump (P) is not operated in the closing operation,
It is possible to avoid useless operation of the absorption liquid pump (P) and prevent failure.
又、吸収冷凍機の起動時、吸収器（９）から再生器
（１）への吸収液の流れを断って再生器（１）の加熱が
行われ、再生器（１）の吸収液温度の上昇が速くなり、
さらに、吸収液ポンプ（Ｐ）が発停運転を始めてから
は、吸収液温度が所定温度になるまで吸収液ポンプ
（Ｐ）が発停し、その間、吸収器（９）から再生器
（１）へ流れ吸収液の量を減らすことができ、吸収液が
短時間で温度上昇し、通常運転に移るまでの時間を短縮
することが可能になり、又、再生器（１）の吸収液温度
の上昇が速いときには、それに応じて、短時間で通常運
転が開始され、通常運転に移るまでの時間が一層短縮さ
れ、起動時の立上り特性をさらに良くすることが可能に
なる。When the absorption refrigerator is started, the flow of the absorbent from the absorber (9) to the regenerator (1) is cut off to heat the regenerator (1), and the temperature of the absorbent in the regenerator (1) is reduced. Ascend faster,
Further, after the absorption liquid pump (P) starts the start / stop operation, the absorption liquid pump (P) starts / stops until the temperature of the absorption liquid reaches a predetermined temperature, and during that time, the absorber (9) switches to the regenerator (1). The amount of the absorbing liquid flowing into the regenerator (1) can be reduced, the temperature of the absorbing liquid rises in a short time, and the time required to shift to normal operation can be shortened. When the rise is fast, the normal operation is started in a short period of time, and the time required to shift to the normal operation is further shortened, so that the start-up characteristic at startup can be further improved.
（ヘ）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 with reference to the drawings.
第１図は二重効用吸収冷凍機を示し、この吸収冷凍機
は冷媒に水（H2O）、吸収液に臭化リチウム（LiBr）の
水溶液を使用したものである。FIG. 1 shows a double-effect absorption refrigerator in which water (H 2 O) is used as a refrigerant and an aqueous solution of lithium bromide (LiBr) is used as an absorption liquid.
第１図において、（１）はバーナ等の加熱器（２）に
より稀液を沸騰させて冷媒蒸気を発生させる高温再生
器、（３）は前記高温再生器（１）から冷媒蒸気の気泡
と共に揚液された稀液を冷媒と分離する分離器、（４）
は前記分離器（３）から送出された冷媒蒸気を熱源とし
て再熱し中間液の冷媒を更に加熱分離する低温再生器、
（５）は冷却器（６）により前記両再生器（１），
（４）から流入する冷媒を凝縮し且つ冷却する凝縮器、
（７）は前記凝縮器（５）からの液冷媒を散布し気化さ
せる際の潜熱を利用して冷水器（８）から冷房用冷水を
得るようにした蒸発器、（９）は低温再生器（４）で冷
媒が分離された濃液を散布して器内の冷媒蒸気を吸収す
ることにより蒸発器（７）の内部を低圧に維持し連続し
た冷水の供給を行えるようにした吸収器、（10）及び
（11）は低温熱交換器と高温熱交換器、（12）は冷媒ポ
ンプ、（Ｐ）は吸収液ポンプであり、これらは吸収液管
（13）乃至（20）、冷媒管（21）乃至（23）により配管
接続され、冷凍サイクルを構成している。又、（24）は
分離器（３）と低温再生器（４）との間に配管された吸
収液逃し管であり、この逃し管（24）の途中にはトラッ
プ（25）が設けられている。このトラップ（25）は分離
器（３）内の圧力と低温再生器（４）内の圧力差が小さ
いとき開く。In FIG. 1, (1) is a high-temperature regenerator that generates a refrigerant vapor by boiling a dilute liquid by a heater (2) such as a burner, and (3) is a high-temperature regenerator together with bubbles of the refrigerant vapor from the high-temperature regenerator (1). A separator for separating the pumped rare liquid from the refrigerant, (4)
Is a low-temperature regenerator that reheats the refrigerant vapor sent from the separator (3) as a heat source to further heat and separate the intermediate liquid refrigerant;
(5) The two regenerators (1),
A condenser for condensing and cooling the refrigerant flowing from (4);
(7) is an evaporator that uses the latent heat generated when the liquid refrigerant from the condenser (5) is sprayed and vaporized to obtain cooling water for cooling from the water cooler (8), and (9) is a low-temperature regenerator. An absorber in which the concentrated liquid from which the refrigerant has been separated in (4) is sprayed to absorb the refrigerant vapor in the vessel, thereby maintaining the inside of the evaporator (7) at a low pressure and enabling continuous supply of cold water; (10) and (11) are a low-temperature heat exchanger and a high-temperature heat exchanger, (12) is a refrigerant pump, (P) is an absorbent pump, and these are the absorbent pipes (13) to (20) and the refrigerant pipe. Piping is connected by (21) to (23) to form a refrigeration cycle. Reference numeral (24) denotes an absorbing liquid relief pipe provided between the separator (3) and the low-temperature regenerator (4). A trap (25) is provided in the middle of the relief pipe (24). I have. This trap (25) opens when the pressure difference between the separator (3) and the low temperature regenerator (4) is small.
さらに、（26）は高温再生器（１）に設けられ、吸収
液温度に応じて開閉する例えばサーモスタット等の吸収
液温度検出器（遅延装置）であり、この吸収液温度検出
器（以下温度センサという）（26）は制御装置（28）に
接続されている。この制御装置（28）は吸収液ポンプ
（Ｐ）、及びバーナ（２）に接続され、吸収液ポンプ
（Ｐ）、及びバーナ（２）は制御装置（28）からの信号
に基づいて動作する。さらに、第２図は起動時動作する
運転制御回路を示したものであり、第２図において第１
図と同様のものには同じ図番が付してある。（31）は吸
収液ポンプ（Ｐ）の発停運転時間を制御する第１のタイ
マ、（32）、及び（33）はそれぞれ発停運転時の運転時
間と停止時間とを制御する第２タイマ、及び第３タイマ
である。（34），（35），（36）、及び（37）はそれぞ
れ、第1,第2,第３タイマ（31），（32），（33）の第1,
第2,第３、及び第４タイマ接点であり、第１タイマ接点
（34）、第３タイマ接点（36）及び第４タイマ接点（3
7）は常閉接点、第２タイマ接点（35）は常開接点であ
る。又、（38）は吸収液ポンプ（Ｐ）への通電を制御す
る電磁開閉器であり、（40）は電源ラインに設けられた
接点である。Further, (26) is an absorption liquid temperature detector (delay device) such as a thermostat which is provided in the high temperature regenerator (1) and opens and closes according to the absorption liquid temperature. (26) is connected to the control device (28). The control device (28) is connected to the absorbent pump (P) and the burner (2), and the absorbent pump (P) and the burner (2) operate based on a signal from the control device (28). FIG. 2 shows an operation control circuit that operates at the time of startup, and FIG.
The same parts as those in the drawings are denoted by the same reference numerals. (31) is a first timer for controlling the start / stop operation time of the absorbent pump (P), and (32) and (33) are second timers for controlling the start / stop operation time and stop time, respectively. , And a third timer. (34), (35), (36), and (37) are the first, second, and third timers (31), (32), and (33), respectively.
Second, third, and fourth timer contacts; a first timer contact (34), a third timer contact (36), and a fourth timer contact (3
7) is a normally closed contact, and the second timer contact (35) is a normally open contact. Further, (38) is an electromagnetic switch for controlling the energization of the absorbent pump (P), and (40) is a contact provided on the power supply line.
上記吸収冷凍機の起動時、制御装置（28）が動作し、
バーナ（２）へ運転信号を出力し、バーナ（２）の燃焼
が始まる。そして、高温再生器（１）の加熱が始まり吸
収液の温度が次第に上昇する。又、高温再生器（１）の
吸収液の温度が所定温度（例えば90℃）より低い場合に
は、温度センサ（26）がオフで、第1,第2,第３タイマ
（31），（32），（33）に通電されず、電磁開閉器（3
8）も非通電であり、接点（40）はオフで、吸収液ポン
プ（Ｐ）には通電されない。そして、稀吸収液が吸収器
（９）から高温再生器（１）へ流れず、吸収液の循環が
停止しているため、高温再生器（１）の吸収液温度が速
やかに上昇する。When the absorption refrigerator is started, the control device (28) operates,
An operation signal is output to the burner (2), and combustion of the burner (2) starts. Then, the heating of the high-temperature regenerator (1) starts, and the temperature of the absorbent gradually increases. When the temperature of the absorbent in the high-temperature regenerator (1) is lower than a predetermined temperature (for example, 90 ° C.), the temperature sensor (26) is turned off, and the first, second, and third timers (31), ( 32) and (33) are not energized and the electromagnetic switch (3
8) is also not energized, the contact (40) is off, and the absorbent pump (P) is not energized. Then, since the rare absorbing liquid does not flow from the absorber (9) to the high-temperature regenerator (1) and the circulation of the absorbing liquid is stopped, the temperature of the absorbing liquid in the high-temperature regenerator (1) rapidly rises.
高温再生器（１）の吸収液温度が所定温度になると、
温度センサ（26）がオンし、第１タイマ（31）が通電さ
れ動作を開始する。又、第１タイマ接点（34）、及び第
４タイマ接点（37）を介して第２タイマ（32）が通電さ
れカウントを開始する。さらに、第３タイマ接点（36）
を介して電磁開閉器（38）が通電され、接点（40）がオ
ンする。接点（40）がオンすると、吸収液ポンプ（Ｐ）
が通電されて運転を開始する。そして、吸収液が吸収器
（９）から高温再生器（１）へ流れ、高温再生器（１）
にて加熱され、分離器（３）にて冷媒蒸気と分離された
吸収液が低温再生器（４）へ流れる。又、第２タイマ
（32）が通電されてから所定時間（T2）（例えば30秒）
経過すると、第２タイマ（32）がカウントアップし、第
２タイマ接点（35）がオンすると共に、第３タイマ接点
（36）がオフする。そして、電磁開閉器（38）が非通電
になり、接点（40）がオフになり、吸収液ポンプ（Ｐ）
は停止する。又、第２タイマ接点（35）がオンすると、
第３タイマ接点（33）が通電されてカウントを開始す
る。又、吸収液ポンプ（13）が運転を停止すると、吸収
液が吸収器（９）から高温再生器（１）へ流れなくな
り、高温再生器（１）での吸収液温度の上昇が速くな
る。When the temperature of the absorbent in the high-temperature regenerator (1) reaches a predetermined temperature,
The temperature sensor (26) is turned on, the first timer (31) is energized, and starts operation. Also, the second timer (32) is energized via the first timer contact (34) and the fourth timer contact (37), and starts counting. Furthermore, the third timer contact (36)
The electromagnetic switch (38) is energized via, and the contact (40) is turned on. When the contact (40) turns on, the absorbent pump (P)
Is energized and starts operation. Then, the absorbent flows from the absorber (9) to the high-temperature regenerator (1), and the high-temperature regenerator (1)
, And the absorbent separated from the refrigerant vapor in the separator (3) flows to the low-temperature regenerator (4). Also, a predetermined time (T 2 ) after the second timer (32) is energized (for example, 30 seconds)
After elapse, the second timer (32) counts up, the second timer contact (35) turns on, and the third timer contact (36) turns off. Then, the electromagnetic switch (38) is de-energized, the contact (40) is turned off, and the absorbent pump (P) is turned off.
Stops. When the second timer contact (35) turns on,
The third timer contact (33) is energized and starts counting. When the absorption liquid pump (13) stops operating, the absorption liquid does not flow from the absorber (9) to the high-temperature regenerator (1), and the temperature of the absorption liquid in the high-temperature regenerator (1) increases rapidly.
第３タイマ（33）が通電され動作を開始してから所定
時間（T3）（例えば30秒）経過すると、第３タイマ（3
3）がカウントアップし、第４タイマ接点（37）がオフ
する。第４タイマ接点（37）がオフすると、第２タイマ
（32）が非通電になり第３タイマ接点（36）がオンし、
電磁開閉器（38）が通電され、接点（40）が閉じ、吸収
液ポンプ（Ｐ）が通電され、運転を開始する。又、第２
タイマ（32）が非通電になると、第２タイマ接点（35）
がオフして第３タイマ（33）が非通電になり、リセット
され、第４タイマ接点（37）がオンして、第２タイマ
（32）が通電状態になりカウントを開始する。When a predetermined time (T 3 ) (for example, 30 seconds) elapses after the third timer (33) is energized and starts operating, the third timer (3)
3) is counted up, and the fourth timer contact (37) is turned off. When the fourth timer contact (37) turns off, the second timer (32) is de-energized and the third timer contact (36) turns on,
The electromagnetic switch (38) is energized, the contact (40) is closed, and the absorbent pump (P) is energized to start operation. Also, the second
When the timer (32) is de-energized, the second timer contact (35)
Turns off, the third timer (33) is de-energized and reset, the fourth timer contact (37) is turned on, the second timer (32) is energized, and starts counting.
以後、同様に第２タイマ（32）、及び第３タイマ（3
3）の動作に基づいて吸収液ポンプ（Ｐ）が所定時間毎
に所定時間運転される。又、バーナ（２）が継続して燃
焼し、高温再生器（１）内の吸収液の温度が上昇する。
そして、第１タイマ（31）が動作を開始してから、即
ち、吸収液ポンプ（Ｐ）の発停が開始されてから所定時
間（例えば15分）経過すると、第１タイマ（31）が動作
し、第１タイマ接点（34）がオフする。第１タイマ接点
（34）がオフすると、第2,第３タイマ（32），（33）に
は通電されなくなり、第３タイマ接点（36）は継続して
オンし、電磁開閉器（38）へは以後継続して通電され
る。そして、吸収液ポンプ（Ｐ）が運転を継続し、吸収
液が吸収器（９）から高温再生器（１）へ流れる。Thereafter, similarly, the second timer (32) and the third timer (3
Based on the operation of 3), the absorbing liquid pump (P) is operated for every predetermined time for a predetermined time. Further, the burner (2) continuously burns, and the temperature of the absorbent in the high-temperature regenerator (1) rises.
Then, after the first timer (31) starts operating, that is, when a predetermined time (for example, 15 minutes) has elapsed since the start and stop of the absorbent pump (P), the first timer (31) starts operating. Then, the first timer contact (34) turns off. When the first timer contact (34) is turned off, the second and third timers (32) and (33) are not energized, the third timer contact (36) is continuously turned on, and the electromagnetic switch (38) Is continuously supplied thereafter. Then, the absorbent pump (P) continues to operate, and the absorbent flows from the absorber (9) to the high temperature regenerator (1).
上記本発明の実施例によれば、吸収冷凍機の起動時高
温再生器（１）の吸収液温度が上昇して所定温度になる
まで温度センサ（26）がオフしており、吸収液ポンプ
（Ｐ）が運転されず、吸収液が高温再生器（１）へ流れ
ずに高温再生器（１）の加熱が行われ、吸収液温度を所
定温度まで短時間で上昇させることができる。さらに、
上記吸収液温度が所定温度になってからは、第2,第３タ
イマ（32），（33）の動作により、吸収液ポンプ（Ｐ）
が所定時間毎に所定時間運転され、吸収液ポンプ（Ｐ）
が連続運転された場合と比較して、吸収器（９）からの
高温再生器（１）へ流れる吸収液の量を減少し、高温再
生器（１）での吸収液温度の上昇を速くすることがで
き、吸収冷凍機の起動から通常運転に移るまでの時間を
短くすることができる。According to the embodiment of the present invention, the temperature sensor (26) is turned off until the temperature of the absorbent in the high-temperature regenerator (1) at the start of the absorption refrigerator rises to a predetermined temperature, and the absorbent pump ( P) is not operated, and the high-temperature regenerator (1) is heated without the absorbent flowing to the high-temperature regenerator (1), so that the temperature of the absorbent can be raised to a predetermined temperature in a short time. further,
After the temperature of the absorbent reaches the predetermined temperature, the operation of the second and third timers (32) and (33) causes the operation of the absorbent pump (P).
Is operated for a predetermined time at predetermined time intervals, and the absorbent pump (P)
The amount of the absorbent flowing from the absorber (9) to the high-temperature regenerator (1) is reduced, and the temperature of the absorbent in the high-temperature regenerator (1) is increased faster than in the case where is continuously operated. Thus, the time from the start of the absorption refrigerator to the transition to the normal operation can be shortened.
又、起動時、吸収液ポンプ（Ｐ）が所定時間発停運転
されるため、吸収器（９）から高温再生器（１）へ流れ
る吸収液の量が減少し、分離器（３）へ流入する吸収液
の量を減少させることができ、分離器（３）内の吸収液
面を低く抑えることができる。この結果、トラップ（2
5）が故障して起動時閉じていた場合にも、分離器
（３）の吸収液面の上昇により吸収液が分離器（３）か
ら冷媒管（21）を介して凝縮器（５）へ流れることを回
避でき、吸収液の混入を防止できる。In addition, at the time of startup, since the absorbent pump (P) is started and stopped for a predetermined time, the amount of the absorbent flowing from the absorber (9) to the high-temperature regenerator (1) decreases, and flows into the separator (3). The amount of absorbing liquid to be absorbed can be reduced, and the level of absorbing liquid in the separator (3) can be kept low. As a result, the trap (2
Even if 5) fails and is closed at startup, the absorption liquid rises in the separator (3) and the absorption liquid flows from the separator (3) to the condenser (5) via the refrigerant pipe (21). Flowing can be avoided, and mixing of the absorbing liquid can be prevented.
さらに、起動時、吸収液ポンプ（Ｐ）が発停して高温
再生器（１）へ流れる吸収液の量が制御されるため、吸
収液管（13）の途中に従来のように制御弁を設ける必要
がなくなり構成の簡略化を図ることができ、又、吸収液
配管（13）を遮断した状態で吸収液ポンプ（Ｐ）が連続
運転されること、即ち、ポンプの開切運転がなくなり、
吸収液ポンプ（Ｐ）の無駄な運転を防止することがで
き、又、吸収液ポンプ（Ｐ）の故障を回避し、吸収液ポ
ンプ（Ｐ）を長期間にわたり使用することが可能にな
る。Further, at the time of startup, the absorption liquid pump (P) starts and stops, and the amount of the absorption liquid flowing to the high-temperature regenerator (1) is controlled. It is not necessary to provide, and the structure can be simplified. In addition, the absorption liquid pump (P) is continuously operated with the absorption liquid pipe (13) shut off, that is, the pump does not need to be opened and closed.
It is possible to prevent useless operation of the absorption liquid pump (P), to avoid failure of the absorption liquid pump (P), and to use the absorption liquid pump (P) for a long period of time.
又、上記実施例において、吸収冷凍機の起動時、高温
再生器（１）内の吸収液温度が上昇して所定温度になっ
てから、所定時間吸収液ポンプ（Ｐ）を発停させたが、
第１図に鎖線にて示したように、高温再生器（１）に連
続運転開始用の温度検出器（以下第２温度センサとい
う）（42）を設け、吸収冷凍機の起動時、上記実施例と
同様に吸収液ポンプ（Ｐ）の発停が始まってから、吸収
液温度が所定温度（例えば140℃）になったとき、第２
温度センサ（42）からの信号に基づいて制御装置を動作
させ、吸収液ポンプ（Ｐ）を連続運転させることによ
り、起動時の立上り特性を良くすることができると共
に、分離器（３）での吸収液面を低く抑え、吸収液の凝
縮器（５）への混入を防止することができる。又、高温
再生器（１）の吸収液温度の上昇が速いときには、第２
温度センサ（42）からの信号に基づいて、短時間で吸収
液ポンプ（Ｐ）が連続運転に移るため、起動時の立上り
特性を一層良くすることができる。In the above embodiment, when the absorption refrigerator is started, the absorption liquid pump (P) is started and stopped for a predetermined time after the temperature of the absorption liquid in the high-temperature regenerator (1) rises and reaches a predetermined temperature. ,
As shown by a chain line in FIG. 1, a temperature detector (hereinafter referred to as a second temperature sensor) (42) for starting continuous operation is provided in the high-temperature regenerator (1), and when the absorption refrigerator is started, the above-mentioned operation is performed. As in the example, when the temperature of the absorbent reaches a predetermined temperature (for example, 140 ° C.) after the start and stop of the absorbent pump (P), the second
By operating the control device based on the signal from the temperature sensor (42) and continuously operating the absorbing liquid pump (P), it is possible to improve the start-up characteristics at the time of start-up, and to improve the start-up characteristic at the separator (3). The level of the absorbing liquid can be kept low, and the absorption of the absorbing liquid into the condenser (5) can be prevented. When the temperature of the absorbent in the high-temperature regenerator (1) rises rapidly, the second
Since the absorption liquid pump (P) shifts to the continuous operation in a short time based on the signal from the temperature sensor (42), the startup characteristics at the time of startup can be further improved.
（ト）発明の効果 本発明は以上のように構成された吸収冷凍機であり、
起動時、吸収器から再生器への吸収液の流れを断って再
生器を加熱し、さらに、吸収液ポンプの作動後吸収液ポ
ンプを所定時間発停させ、その後連続運転させるため、
起動時、再生器へ流れる吸収液の量が減少し、再生器の
吸収液温度を短時間で上昇させることができ、起動時間
を短縮することができる。又、起動時に再生器から流出
する吸収液の量を少なくすることができ、吸収液の凝縮
器等の冷媒への混入を防止することができ、さらに、吸
収液ポンプの発停により無駄な運転を回避できると共
に、吸収液ポンプを長期間にわたり使用することができ
る。(G) Effects of the Invention The present invention is an absorption refrigerator configured as described above,
At the time of startup, the flow of the absorbent from the absorber to the regenerator is cut off to heat the regenerator, and furthermore, after the operation of the absorbent pump, the absorbent pump is started and stopped for a predetermined time, and then continuously operated,
At startup, the amount of absorbent flowing into the regenerator decreases, the temperature of the absorbent in the regenerator can be raised in a short time, and the startup time can be reduced. In addition, the amount of the absorbing liquid flowing out of the regenerator at the time of starting can be reduced, the absorbing liquid can be prevented from being mixed into the refrigerant of the condenser or the like, and furthermore, the operation of the absorbing liquid pump is wasted and stopped to cause unnecessary operation. Can be avoided, and the absorbent pump can be used for a long period of time.
又、吸収冷凍機の起動時、吸収器から再生器への吸収
液の流れを断って再生器を加熱し、さらに、吸収液ポン
プの作動後、再生器の吸収液温度が所定温度になるまで
吸収液ポンプを発停させ、その後連続運転させることに
より、起動時、再生器へ流れる吸収液の量が減少し、再
生器の吸収液を短時間で上昇させることができると共
に、上昇後、直ちに吸収液ポンプを連続運転させること
ができ、起動時間を短縮することができる。又、吸収液
の冷媒への混入を防止でき、さらに、吸収液ポンプを長
期間にわたり使用することができる。Further, when the absorption refrigerator is started, the flow of the absorption liquid from the absorber to the regenerator is cut off to heat the regenerator, and further, after the operation of the absorption liquid pump, until the absorption liquid temperature of the regenerator reaches a predetermined temperature. By starting and stopping the absorbent pump and then continuously operating, the amount of the absorbent flowing to the regenerator at startup is reduced, and the absorbent in the regenerator can be raised in a short time. The absorbent pump can be operated continuously, and the startup time can be reduced. Further, the absorption liquid can be prevented from being mixed into the refrigerant, and the absorption liquid pump can be used for a long period of time.
第１図は本発明の一実施例を示す吸収冷凍機の回路構成
図、第２図は、第１図に示した吸収冷凍機の制御回路
図、第３図は第１図に示した吸収冷凍機の制御特性図で
ある。 （１）……再生器、（５）……凝縮器、（８）……蒸発
器、（９）……吸収器、（Ｐ）……吸収液ポンプ、（2
6）……吸収液温度検出器（遅延装置）、（28）……制
御装置。1 is a circuit configuration diagram of an absorption refrigerator showing one embodiment of the present invention, FIG. 2 is a control circuit diagram of the absorption refrigerator shown in FIG. 1, and FIG. 3 is an absorption refrigerator shown in FIG. It is a control characteristic figure of a refrigerator. (1) ... regenerator, (5) ... condenser, (8) ... evaporator, (9) ... absorber, (P) ... absorbent pump, (2)
6) Absorbent temperature detector (delay device), (28) Control device.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 阿部 久雄 大阪府守口市京阪本通２丁目18番地 三 洋電機株式会社内 (72)発明者 坂本 直樹 大阪府守口市京阪本通２丁目18番地 三 洋電機株式会社内 (56)参考文献 実開 昭55−116963（ＪＰ，Ｕ) 特公 昭62−52229（ＪＰ，Ｂ２) ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hisao Abe 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Naoki 2-18-18 Keihanhondori, Moriguchi-shi, Osaka (56) References Japanese Utility Model Sho 55-16963 (JP, U) JP-B 62-52229 (JP, B2)
Claims (2)
れぞれ配管接続し、起動時吸収液ポンプの作動を再生器
の加熱動作より遅延させる遅延装置を有して吸収冷凍機
において、起動時、吸収器から再生器への吸収液の流れ
を断って再生器を加熱し、吸収液ポンプの作動後、吸収
液ポンプを所定時間発停させ、その後連続運転させる制
御装置を備えたことを特徴とする吸収冷凍機。A regenerator, a condenser, an evaporator, and an absorber are connected with respective pipes, and an absorption refrigerator having a delay device for delaying the operation of the absorbent pump at the time of starting from the heating operation of the regenerator, At start-up, a control device is provided to shut off the flow of the absorbing liquid from the absorber to the regenerator, heat the regenerator, start and stop the absorbing pump for a predetermined time after the operation of the absorbing pump, and then continuously operate the absorbing pump. An absorption refrigerator.
れぞれ配管接続し、起動時吸収液ポンプの作動を再生器
の加熱動作より遅延させる遅延装置を有して吸収冷凍機
において、起動時、吸収器から再生器への吸収液の流れ
を断って再生器を加熱し、吸収液ポンプの作動後、再生
器の吸収液温度が所定温度になるまで吸収液ポンプを発
停させ、その後、連続運転させる制御装置を備えたこと
を特徴とする吸収冷凍機。2. An absorption refrigerator comprising a delay device for connecting a regenerator, a condenser, an evaporator, and an absorber with respective pipes and delaying the operation of the absorbing liquid pump at the time of starting from the heating operation of the regenerator. At start-up, the flow of the absorbent from the absorber to the regenerator is cut off to heat the regenerator, and after the operation of the absorber pump, the absorber pump is started and stopped until the absorber temperature of the regenerator reaches a predetermined temperature, An absorption refrigerator comprising a control device for continuously operating after that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30635688A JP2647937B2 (en) | 1988-12-02 | 1988-12-02 | Absorption refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30635688A JP2647937B2 (en) | 1988-12-02 | 1988-12-02 | Absorption refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02150674A JPH02150674A (en) | 1990-06-08 |
| JP2647937B2 true JP2647937B2 (en) | 1997-08-27 |
Family
ID=17956087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30635688A Expired - Fee Related JP2647937B2 (en) | 1988-12-02 | 1988-12-02 | Absorption refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2647937B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6252229B2 (en) | 2014-02-19 | 2017-12-27 | 富士ゼロックス株式会社 | Information processing apparatus and information processing program |
-
1988
- 1988-12-02 JP JP30635688A patent/JP2647937B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6252229B2 (en) | 2014-02-19 | 2017-12-27 | 富士ゼロックス株式会社 | Information processing apparatus and information processing program |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02150674A (en) | 1990-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2647937B2 (en) | Absorption refrigerator | |
| JP3030225B2 (en) | How to stop absorption chiller operation | |
| JP2765913B2 (en) | Absorption refrigerator | |
| JP2858938B2 (en) | Absorption chiller / heater | |
| JPH05248726A (en) | Absorption refrigerating machine | |
| JP2010078298A (en) | Absorption refrigerator | |
| JP3128501B2 (en) | Absorption air conditioner | |
| JP3146373B2 (en) | Solution flow control method for absorption chiller / heater | |
| JP3241623B2 (en) | Absorption air conditioner | |
| JP2823266B2 (en) | Regenerator control device | |
| JPS6234206Y2 (en) | ||
| JP2918665B2 (en) | Operation stop method and stop control device for absorption chiller / chiller / heater | |
| JPH0730974B2 (en) | Extraction device for absorption refrigerator | |
| JPS5836264B2 (en) | absorption refrigerator | |
| JPS6118366Y2 (en) | ||
| JP3182233B2 (en) | Operation control method in absorption refrigerator | |
| JPH08320168A (en) | Control method for absorption type cold/hot water machine | |
| JP4115020B2 (en) | Control method of absorption refrigerator | |
| JP3128502B2 (en) | Absorption air conditioner | |
| JPH05113266A (en) | Controller of absorption refrigerating machine | |
| JPH0448454Y2 (en) | ||
| JP2885637B2 (en) | Absorption refrigeration apparatus and control method thereof | |
| JPH0584427B2 (en) | ||
| JPH0357388B2 (en) | ||
| JP2999934B2 (en) | Startup control method of absorption refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |