JPH0835734A - Method and apparatus for melting crystal of absorption refrigerant and hot and chilled water generator - Google Patents
Method and apparatus for melting crystal of absorption refrigerant and hot and chilled water generatorInfo
- Publication number
- JPH0835734A JPH0835734A JP6189967A JP18996794A JPH0835734A JP H0835734 A JPH0835734 A JP H0835734A JP 6189967 A JP6189967 A JP 6189967A JP 18996794 A JP18996794 A JP 18996794A JP H0835734 A JPH0835734 A JP H0835734A
- Authority
- JP
- Japan
- Prior art keywords
- hot air
- absorption
- heater
- cooler
- chiller
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、臭化リチウム水溶液そ
の他の塩類溶液を吸収液として用いる吸収冷凍機、吸収
冷凍水機、吸収ヒートポンプ等（以下、吸収冷凍機・冷
温水機という）における結晶融解方法及びこの方法を実
施する装置に関するものである。BACKGROUND OF THE INVENTION The present invention relates to crystals in absorption refrigerators, absorption refrigerators, absorption heat pumps, etc. (hereinafter referred to as absorption refrigerators / coolers / heaters) which use an aqueous solution of lithium bromide or other salt solution as an absorption liquid. It relates to a melting method and an apparatus for carrying out this method.
【０００２】[0002]
【従来の技術】この種の吸収冷凍機・冷温水機において
は、効率の良い運転を行なうために臭化リチウム水溶液
の吸収液の濃度を高めるようにしている。そのため、運
転を休止させる際に直ちに吸収液の循環を止めると濃度
の高い吸収液が溶液熱交換器や発生器などに残留し、こ
れが外気で冷却されて結晶化し、翌日の運転再開の阻害
要因となる。それ故、この種の吸収冷凍機においては、
この阻害要因を早急に取り去るため、結晶化した部分の
保温を取り外し、直接外部からトーチバーナにて極部加
熱をするという、長時間を要し、効率の悪い方法が採ら
れていた。2. Description of the Related Art In this type of absorption refrigerator / cooler / heater, the concentration of the absorption solution of the lithium bromide aqueous solution is increased in order to operate efficiently. Therefore, if the circulation of the absorption liquid is stopped immediately when the operation is stopped, a high concentration of the absorption liquid remains in the solution heat exchanger, generator, etc., which is cooled by the outside air and crystallizes, which is an obstacle to restarting the operation the next day. Becomes Therefore, in this type of absorption refrigerator,
In order to remove this impeding factor as soon as possible, the heat-retaining of the crystallized portion is removed, and the pole portion is directly heated from the outside by a torch burner, which requires a long time and is inefficient.
【０００３】[0003]
【発明が解決しようとする課題】上記のように、従来の
吸収冷凍機・冷温水機においては、通常、その制御装置
により発生器や溶液熱交換器内の吸収液の濃度を低くし
た後、運転を休止することになるので、翌日の運転を安
全に開始できるものの、停電や吸収液ポンプの異常によ
って運転が停止した場合には、停止と同時に吸収液用ポ
ンプの作動も止まるとともに、制御装置の機能も停止し
て吸収液の稀釈運転が行なわれない。その結果、濃度の
高い吸収液が発生器や溶液熱交換器などに残留すること
になる。そして停電や吸収液ポンプの異常の後、再起動
せず外気で冷却されて発生器や溶液熱交換器内の吸収液
が結晶化してしまうという問題点があった。そして、こ
の点に対処するために、前述のような繁雑で、長時間を
要する結晶融解方法が行われていた。As described above, in the conventional absorption refrigerator / cooler / cooler / heater, the controller usually reduces the concentration of the absorbing liquid in the generator or the solution heat exchanger, Since the operation will be stopped, the operation of the next day can be safely started, but if the operation is stopped due to a power failure or an abnormality of the absorbent pump, the operation of the absorbent pump will stop at the same time as the stop, and the controller The function of is also stopped and the absorbent is not diluted. As a result, the high-concentration absorption liquid remains in the generator or the solution heat exchanger. Then, after a power failure or abnormality of the absorption liquid pump, there is a problem that the absorption liquid in the generator or the solution heat exchanger is crystallized by being cooled by the outside air without restarting. In order to deal with this point, the complicated and time-consuming crystal melting method as described above has been performed.
【０００４】本発明は、このような問題点に鑑みなされ
たもので、停電や吸収液ポンプの異常の後における吸収
液の結晶化の復旧作業を容易にすることができる、吸収
冷凍機・冷温水機における結晶融解方法及び装置を提供
することを目的とするものである。すなわち、運転が停
電や吸収液ポンプの異常により停止し、長時間放置され
ると、吸収液の管路、溶液熱交換器、再生器、吸収液ポ
ンプ等で結晶が発生するが、本発明の目的は、この結晶
を容易に、安全かつ、確実に融解する方法及び装置を提
供することにある。The present invention has been made in view of the above problems, and it is possible to facilitate the recovery work of the crystallization of the absorption liquid after a power failure or an abnormality of the absorption liquid pump. It is an object of the present invention to provide a crystal melting method and apparatus in a water machine. That is, when the operation is stopped due to a power failure or an abnormality of the absorption liquid pump and left for a long time, crystals are generated in the absorption liquid pipeline, the solution heat exchanger, the regenerator, the absorption liquid pump, etc. An object is to provide a method and an apparatus for melting this crystal easily, safely and surely.
【０００５】[0005]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明は、停電や吸収液ポンプの異常の後に結晶
が発生し、再運転ができなくなった場合、結晶部分又は
機械の全部を結晶開始温度（融解温度と同じ）以上に昇
温させて結晶を融解させる構成としたものである。In order to achieve the above object, the present invention provides a crystal part or an entire machine in the case where a crystal is generated after a power failure or an abnormality of the absorption liquid pump and the operation cannot be restarted. Is heated above the crystal starting temperature (the same as the melting temperature) to melt the crystals.
【０００６】本発明の結晶融解方法は、再生器、凝縮
器、蒸発器、吸収器、溶液熱交換器、冷媒液用ポンプ、
吸収液用ポンプなどの機器を配管接続して冷媒流路及び
吸収液流路を形成した吸収冷凍機・冷温水機において、
結晶を起こした部分に熱風を導入して、結晶融解温度以
上に昇温することを特徴としている。この場合、熱風を
機械の外部から耐熱ダクトにて導入し、結晶を起こした
部分を加熱し、結晶融解温度以上に昇温して融解する。
また、吸収冷凍機又は冷温水機で結晶を起こし易い部分
に温度センサを設け、結晶を自動的に判断するようにす
ることが好ましい。また、機械の運転状況を監視し、結
晶を起こし易い部分の温度と濃度により、結晶を自動的
に判断することが好ましい。さらに、機械の運転状況を
監視し、停電等による突然又は異常時の停止後、放熱時
間でもって結晶を自動的に判断することが好ましい。The crystal melting method of the present invention includes a regenerator, condenser, evaporator, absorber, solution heat exchanger, refrigerant liquid pump,
In an absorption refrigerator / cooler / hot water machine in which a refrigerant flow path and an absorption liquid flow path are formed by connecting equipment such as an absorption liquid pump in a pipe,
It is characterized in that hot air is introduced into the portion where the crystal is generated to raise the temperature to the crystal melting temperature or higher. In this case, hot air is introduced from the outside of the machine through a heat-resistant duct to heat the portion where the crystal has been generated, and the temperature is raised above the crystal melting temperature to melt.
Further, it is preferable that a temperature sensor is provided at a portion where crystals easily occur in the absorption refrigerator or the cold / hot water machine so that the crystals are automatically judged. In addition, it is preferable to monitor the operating condition of the machine and automatically determine the crystal based on the temperature and concentration of the portion where the crystal is likely to occur. Furthermore, it is preferable to monitor the operation status of the machine and automatically determine the crystal based on the heat radiation time after a sudden or abnormal stop due to a power failure or the like.
【０００７】また、本発明の他の結晶融解方法は、再生
器、凝縮器、蒸発器、吸収器、溶液熱交換器、冷媒液用
ポンプ、吸収液用ポンプなどの機器を配管接続して冷媒
流路及び吸収液流路を形成した吸収冷凍機・冷温水機に
おいて、その運転が停電や吸収液ポンプの異常により停
止した際に、この吸収冷凍機・冷温水機全体又は一部を
被覆した放熱防止カバー内に熱風を導入して、溶液が結
晶化する温度以上に昇温することを特徴としている。こ
の場合、熱風を循環させることが好ましい。また、熱風
を導入してカバー内の温度を６８℃以上、好ましくは７
０℃以上に保持することが好ましい。熱風を循環させる
場合は、熱風が結晶部分にあたるように導入することが
好ましい。Another method of melting crystals according to the present invention is to use a regenerator, a condenser, an evaporator, an absorber, a solution heat exchanger, a pump for a refrigerant liquid, a pump for an absorbent liquid, etc. in a pipe connection to form a refrigerant. In an absorption refrigerator / cooler / heater having a flow path and an absorption liquid flow path, when the operation of the absorption refrigerator / cooler / heater stopped due to a power failure or an abnormality in the absorption pump, the absorption refrigerator / cooler / heater was covered in whole or in part. It is characterized in that hot air is introduced into the heat radiation prevention cover to raise the temperature above the temperature at which the solution crystallizes. In this case, it is preferable to circulate hot air. Also, hot air is introduced to keep the temperature inside the cover at 68 ° C. or higher, preferably 7
It is preferable to keep at 0 ° C. or higher. When circulating hot air, it is preferable to introduce hot air so that the hot air hits the crystal part.
【０００８】さらに、本発明の他の結晶融解方法は、再
生器、凝縮器、蒸発器、吸収器、溶液熱交換器、冷媒液
用ポンプ、吸収液用ポンプなどの機器を配管接続して冷
媒流路及び吸収液流路を形成した吸収冷凍機・冷温水機
において、結晶を起こしやすい部分に予めヒータを設置
しておき、結晶を起こすと、このヒータで結晶融解温度
以上に昇温することを特徴としている。このように、結
晶を起こし易い部位が判かっているため、予め加熱融解
に必要なヒータを設けておく。この場合、予め結晶を起
こし易い部位に結晶を判断するセンサを設けておき、そ
の判断にて、上記の加熱融解用のヒータを作動させて融
解するように構成することが好ましい。また、予め、結
晶融解を判断する機器又はセンサを設けておき、前記の
ヒータを作動させてた結果、自動的に濃度又は温度にて
融解を判断するように構成することが好ましい。また、
前記の結晶判断方法、融解方法及び融解判断方法を組み
合わせることで、事前に結晶を防止するように構成する
場合もある。また前記の結晶防止手段にかかわらず結晶
を起こした場合、自動的に判断して融解及び融解完了の
判断をするように構成する場合もある。Furthermore, another crystal melting method according to the present invention is a method in which a regenerator, a condenser, an evaporator, an absorber, a solution heat exchanger, a refrigerant liquid pump, an absorption liquid pump and the like are connected by piping to connect the refrigerant. In an absorption refrigerator / cooler / heater having a flow path and an absorption liquid flow path, a heater is installed in advance in a portion where crystallization is likely to occur, and when crystallization is caused, the temperature is raised to above the crystal melting temperature with this heater. Is characterized by. As described above, since the portion where crystals are likely to occur is known, a heater necessary for heating and melting is provided in advance. In this case, it is preferable that a sensor for judging the crystal is provided in advance at a site where the crystal is likely to occur and the heater for heating and melting is operated to melt the crystal according to the judgment. Further, it is preferable that a device or a sensor for judging the crystal melting is provided in advance and the melting is automatically judged based on the concentration or the temperature as a result of operating the heater. Also,
In some cases, the crystallization may be prevented in advance by combining the above-described crystal determination method, melting method, and melting determination method. In some cases, regardless of the above-mentioned crystallization preventing means, when crystallization occurs, it may be automatically judged to determine melting and completion of melting.
【０００９】また、本発明の結晶融解装置は、再生器、
凝縮器、蒸発器、吸収器、溶液熱交換器、冷媒液用ポン
プ、吸収液用ポンプなどの機器を配管接続して冷媒流路
及び吸収液流路を形成した吸収冷凍機・冷温水機におい
て、この吸収冷凍機・冷温水機全体又は一部を放熱防止
カバーで被覆し、このカバーの一端に熱風入口を設ける
とともに、このカバーの他端に熱風出口を設け、この熱
風入口に熱風発生機を備えた熱風供給ダクトを接続した
ことを特徴としている。前記の放熱防止カバーは、化粧
ケーシングで代用することも可能である。Further, the crystal melting apparatus of the present invention comprises a regenerator,
In an absorption chiller / cooler / heater in which equipment such as a condenser, evaporator, absorber, solution heat exchanger, refrigerant liquid pump, and absorption liquid pump are connected by piping to form a refrigerant flow path and an absorption liquid flow path. The absorption chiller / chiller / heater is wholly or partly covered with a heat radiation prevention cover, a hot air inlet is provided at one end of the cover, and a hot air outlet is provided at the other end of the cover, and a hot air generator is provided at the hot air inlet. It is characterized in that a hot air supply duct equipped with is connected. The heat dissipation cover can be replaced with a decorative casing.
【００１０】また、本発明の他の結晶融解装置は、再生
器、凝縮器、蒸発器、吸収器、溶液熱交換器、冷媒液用
ポンプ、吸収液用ポンプなどの機器を配管接続して冷媒
流路及び吸収液流路を形成した吸収冷凍機・冷温水機に
おいて、この吸収冷凍機・冷温水機全体又は一部を放熱
防止カバーで被覆し、このカバーの一端に熱風入口を設
けるとともに、このカバーの他端に熱風出口を設け、こ
の熱風出口とこの熱風入口とを、熱風発生機を備えた熱
風循環ラインで接続したことを特徴としている。In another crystal melting apparatus of the present invention, a regenerator, a condenser, an evaporator, an absorber, a solution heat exchanger, a refrigerant liquid pump, an absorption liquid pump, and other devices are connected by piping to connect the refrigerant. In an absorption refrigerator / cooler / heater having a flow passage and an absorbent liquid flow passage, the absorption refrigerator / cooler / heater is wholly or partially covered with a heat radiation prevention cover, and a hot air inlet is provided at one end of the cover. A hot air outlet is provided at the other end of the cover, and the hot air outlet and the hot air inlet are connected by a hot air circulation line equipped with a hot air generator.
【００１１】[0011]
【作用】つぎに、本発明の作用を、放熱防止カバーを設
ける場合について説明する。上記のように構成された吸
収冷凍機・冷温水機における結晶融解装置において、吸
収液が結晶化すると、放熱防止カバー内に熱風を導入し
て、結晶部分又は機械の全体を結晶開始温度（融解温
度）以上に昇温させて結晶を融解させる。Next, the operation of the present invention will be described in the case where the heat radiation prevention cover is provided. In the crystal melting device in the absorption refrigerator / cooler / heater configured as described above, when the absorbing liquid crystallizes, hot air is introduced into the heat radiation prevention cover to cause the crystal part or the entire machine to start at the crystal start temperature (melting temperature). (Temperature) to raise the temperature to melt the crystal.
【００１２】[0012]
【実施例】以下、図面を参照して本発明の好適な実施例
を詳細に説明する。ただし、この実施例に記載されてい
る構成機器の形状、その相対配置などは、とくに特定的
な記載がない限りは、本発明の範囲をそれらのみに限定
する趣旨のものではなく、単なる説明例にすぎない。図
１は本発明の吸収冷凍機・冷温水機における結晶融解装
置の一実施例であって、放熱防止カバーを設ける場合を
示し、図２は図１における吸収冷凍機・冷温水機の一例
である吸収冷温水機を示している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings. However, the shape of the constituent devices described in this embodiment, the relative arrangement thereof, and the like, unless otherwise specified, are not intended to limit the scope of the present invention only to them, but merely illustrative examples. Nothing more. 1 shows an embodiment of a crystal melting device in an absorption refrigerator / cooler / heater of the present invention, in which a heat radiation prevention cover is provided, and FIG. 2 shows an example of the absorption refrigerator / cooler / heater in FIG. 1 illustrates an absorption chiller / heater.
【００１３】図１及び図２において、１は高温再生器、
２は低温再生器、３は凝縮器、４は蒸発器、５は吸収
器、６は低温溶液熱交換器、７は高温溶液熱交換器、Ｐ
ｒは冷媒液用ポンプ、Ｐａは低温吸収液ポンプ、Ｐｂは
高温吸収液ポンプで、これらの機器は冷媒蒸気の流れる
管８、９、冷媒液の流下する管１０、冷媒液の還流する
管１１、１２、稀液の送られる管１３、１４、中間液の
流れる管１５、１６、及び濃液の流れる管１７、１８に
より接続されて、従来のこの種の吸収冷温水機と同様の
冷媒〔水〕及び吸収液〔臭化リチウム水溶液〕の循環路
を構成している。１９は高温再生器１の燃焼室、２０は
燃焼ガスの流れる管、２１は低温発生器２の加熱器、２
２は凝縮器３に内蔵された冷却器、２３は蒸発器４に内
蔵された冷水器、２４は吸収器５に内蔵された冷却器で
ある。また、Ｂはバーナ、２５はバーナＢへの燃料供給
管、２６は低温胴である。1 and 2, 1 is a high temperature regenerator,
2 is a low temperature regenerator, 3 is a condenser, 4 is an evaporator, 5 is an absorber, 6 is a low temperature solution heat exchanger, 7 is a high temperature solution heat exchanger, P
r is a refrigerant liquid pump, Pa is a low temperature absorption liquid pump, Pb is a high temperature absorption liquid pump, and these devices are pipes 8 and 9 through which the refrigerant vapor flows, pipes 10 through which the refrigerant liquid flows down, and pipes 11 through which the refrigerant liquid flows back. , 12, the pipes 13 and 14 to which the dilute liquid is sent, the pipes 15 and 16 to which the intermediate liquid flows, and the pipes 17 and 18 to which the concentrated liquid flows, so that the same refrigerant as that of the conventional absorption chiller-heater of this kind [ It constitutes a circulation path for water] and an absorbing liquid [lithium bromide aqueous solution]. Reference numeral 19 is a combustion chamber of the high temperature regenerator 1, 20 is a pipe through which combustion gas flows, 21 is a heater of the low temperature generator 2, 2
Reference numeral 2 is a cooler built in the condenser 3, 23 is a chiller built in the evaporator 4, and 24 is a cooler built in the absorber 5. Further, B is a burner, 25 is a fuel supply pipe to the burner B, and 26 is a low temperature cylinder.
【００１４】上記のように構成された吸収冷温水機にお
いて、運転中の停電や吸収液ポンプＰａ、Ｐｂの異常に
より、機械が長時間放置されると、吸収液の濃度の高い
高温再生器１及び高温溶液熱交換器７やその連絡配管１
７、１８が、放熱にて結晶温度に降下し、溶液が結晶し
た場合、従来は、作業性が悪いにも拘らず、結晶部分の
保温材を外し、長時間にわたりトーチバーナ等で局部的
に直接加熱していた。In the absorption chiller-heater configured as described above, when the machine is left for a long time due to a power failure during operation or an abnormality of the absorption liquid pumps Pa and Pb, the high temperature regenerator 1 having a high absorption liquid concentration 1 And high temperature solution heat exchanger 7 and its connecting pipe 1
When the temperature of 7 and 18 drops to the crystal temperature due to heat radiation and the solution crystallizes, conventionally, despite the poor workability, the heat insulating material of the crystal part was removed and the torch burner or the like was used to locally directly It was heating.
【００１５】これに対処するために、図１に示すよう
に、冷温水機全体又は一部を放熱防止カバー３０で被覆
し（図１では、一例として、機械全体を被覆する場合を
示している）、このカバー３０の一端に熱風入口３２
ａ、３２ｂを設けるとともに、このカバー３０の他端に
熱風出口３４を設け、この熱風出口３４と熱風入口３２
ａ、３２ｂとを、熱風発生機３６ａ、３６ｂを備えた熱
風循環ライン３８ａ、３８ｂで接続する。３３ａ、３３
ｂは熱風供給ダクトである。図１では、一例として１０
KWの熱風発生機３６ａと２０KWの熱風発生機３６ｂを備
えた２系統の熱風循環ライン３８ａ、３８ｂを設ける場
合を示しているが、１系統の熱風循環ラインとすること
も、勿論可能である。なお、放熱防止カバー３０は、機
械の全体又は一部を予め被覆するように設置しても良
く、又は熱風を導入する直前に機械の全体又は一部を被
覆するようにしてもよい。In order to deal with this, as shown in FIG. 1, the whole or a part of the chiller / heater is covered with a heat radiation prevention cover 30 (in FIG. 1, the case where the entire machine is covered is shown as an example. ), The hot air inlet 32 is provided at one end of the cover 30.
a and 32b are provided, and a hot air outlet 34 is provided at the other end of the cover 30, and the hot air outlet 34 and the hot air inlet 32 are provided.
a and 32b are connected by hot air circulation lines 38a and 38b equipped with hot air generators 36a and 36b. 33a, 33
b is a hot air supply duct. In FIG. 1, as an example, 10
Although the case where two systems of hot air circulation lines 38a and 38b equipped with the KW hot air generator 36a and the 20 KW hot air generator 36b are provided is shown, one system of hot air circulation line is of course possible. The heat radiation prevention cover 30 may be installed so as to cover all or part of the machine in advance, or may cover all or part of the machine immediately before introducing hot air.
【００１６】溶液が結晶化した場合、放熱防止カバー３
０内に熱風を送気して、溶液の結晶温度（融解温度と同
じ）以上に昇温することで簡単に融解することができ
る。また、機械全体が化粧ケーシング等で覆れているも
のでは、放熱防止カバーをせず、直接に熱風を送気する
ことで融解することができる。例えば、冷房定格運転で
長時間停止すると、最高濃度の高温再生器においては濃
度が６７％となる。この場合、放熱により６５℃まで降
下すると結晶域となり、再運転が不可能となるが、図１
に示すように、機械全体をカバー３０にて覆い、熱風を
送気して６８℃以上、好ましくは７０℃以上に保持すれ
ば、結晶が融解し、吸収液ポンプを廻して稀釈運転して
やれば、正常な状態に戻る。When the solution crystallizes, the heat dissipation cover 3
It can be melted easily by sending hot air to the inside of 0 and raising the temperature above the crystallization temperature of the solution (the same as the melting temperature). If the entire machine is covered with a decorative casing or the like, it can be melted by directly sending hot air without a heat radiation prevention cover. For example, if the cooling rated operation is stopped for a long time, the concentration becomes 67% in the high temperature regenerator having the highest concentration. In this case, when the temperature drops to 65 ° C due to heat dissipation, it becomes a crystalline region and restarting becomes impossible.
As shown in, if the entire machine is covered with a cover 30 and hot air is blown to maintain the temperature at 68 ° C. or higher, preferably 70 ° C. or higher, the crystals are melted and the absorption pump is rotated to perform a dilution operation. Return to normal.
【００１７】[0017]
【発明の効果】本発明は上記のように構成されているの
で、つぎのような効果を奏する。 （１） 従来は吸収液が結晶化すると、作業性が悪いに
も拘らず、結晶部分の保温材を取り外し、長時間にわた
りトーチバーナ等で局部的に直接加熱していたので、作
業が繁雑な上に保温材への延焼の危険性もあったが、本
発明の方法及び装置では、従来の結晶融解方法に比べ、
短時間で容易、かつ、安全、確実に結晶を融解させるこ
とができる。Since the present invention is configured as described above, it has the following effects. (1) Conventionally, when the absorbing liquid crystallized, the heat insulating material on the crystal part was removed and the torch burner was locally heated directly for a long time despite the poor workability. Although there was a risk of fire spread to the heat insulating material, in the method and apparatus of the present invention, compared to the conventional crystal melting method,
Crystals can be melted easily, safely, and reliably in a short time.
【図１】本発明の吸収冷凍機・冷温水機における結晶融
解装置の一実施例を示す概略構成図である。FIG. 1 is a schematic configuration diagram showing an embodiment of a crystal melting device in an absorption refrigerator / cooler / heater of the present invention.
【図２】図１における吸収冷凍機・冷温水機の一例であ
る吸収冷温水機を示す系統図である。FIG. 2 is a system diagram showing an absorption chiller-heater which is an example of the absorption chiller / chiller-heater in FIG.
１ 高温再生器 ２ 低温再生器 ３ 凝縮器 ４ 蒸発器 ５ 吸収器 ６ 低温溶液熱交換器 ７ 高温溶液熱交換器 ２６ 低温胴 ３０ 放熱防止カバー ３２ａ 熱風入口 ３２ｂ 熱風入口 ３３ａ 熱風供給ダクト ３３ｂ 熱風供給ダクト ３４ 熱風出口 ３６ａ 熱風発生機 ３６ｂ 熱風発生機 ３８ａ 熱風循環ライン ３８ｂ 熱風循環ライン Ｐｒ 冷媒液用ポンプ Ｐａ 低温吸収液ポンプ Ｐｂ 高温吸収液ポンプ 1 High Temperature Regenerator 2 Low Temperature Regenerator 3 Condenser 4 Evaporator 5 Absorber 6 Low Temperature Solution Heat Exchanger 7 High Temperature Solution Heat Exchanger 26 Low Temperature Body 30 Heat Dissipation Prevention Cover 32a Hot Air Inlet 32b Hot Air Inlet 33a Hot Air Supply Duct 33b Hot Air Supply Duct 34 Hot Air Outlet 36a Hot Air Generator 36b Hot Air Generator 38a Hot Air Circulation Line 38b Hot Air Circulation Line Pr Refrigerant Liquid Pump Pa Low Temperature Absorption Liquid Pump Pb High Temperature Absorption Liquid Pump
───────────────────────────────────────────────────── フロントページの続き (72)発明者 上岡 晋 滋賀県草津市青地町1000番地 川重冷熱工 業株式会社本社工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shin Ueoka 1000 Aochi-cho, Kusatsu-shi, Shiga Kawashige Thermal Engineering Co., Ltd.
Claims (8)
熱交換器、冷媒液用ポンプ、吸収液用ポンプなどの機器
を配管接続して冷媒流路及び吸収液流路を形成した吸収
冷凍機・冷温水機において、結晶を起こした部分に熱風
を導入して、結晶融解温度以上に昇温することを特徴と
する吸収冷凍機・冷温水機における結晶融解方法。1. A refrigerant flow path and an absorbent flow path are formed by connecting devices such as a regenerator, a condenser, an evaporator, an absorber, a solution heat exchanger, a refrigerant liquid pump, an absorbent liquid pump, etc. In the absorption refrigerator / cooler / heater, a method of melting crystals in the absorption refrigerator / cooler / heater is characterized in that hot air is introduced into a portion where crystals are caused to raise the temperature to a temperature higher than the crystal melting temperature.
熱交換器、冷媒液用ポンプ、吸収液用ポンプなどの機器
を配管接続して冷媒流路及び吸収液流路を形成した吸収
冷凍機・冷温水機において、その運転が停電や吸収液ポ
ンプの異常により停止した際に、この吸収冷凍機・冷温
水機全体又は一部を被覆した放熱防止カバー内に熱風を
導入して、溶液が結晶化する温度以上に昇温することを
特徴とする吸収冷凍機・冷温水機における結晶融解方
法。2. A regenerator, a condenser, an evaporator, an absorber, a solution heat exchanger, a refrigerant liquid pump, an absorbent liquid pump, and other devices are connected by piping to form a refrigerant channel and an absorbent channel. When the operation of the absorption chiller / cooler / heater stops due to a power outage or an abnormality of the absorbent pump, hot air is introduced into the heat radiation prevention cover that covers all or part of the absorption chiller / cooler / heater. A method for melting crystals in an absorption refrigerator / cooler, comprising heating the solution to a temperature at which the solution crystallizes or higher.
項２記載の吸収冷凍機・冷温水機における結晶融解方
法。3. The crystal melting method in an absorption refrigerator / cooler / cooler according to claim 2, wherein hot air is circulated.
以上に保持することを特徴とする請求項２又は３記載の
吸収冷凍機・冷温水機における結晶融解方法。4. The temperature inside the cover is set to 68 ° C. by introducing hot air.
The above method holds the crystal melting method in the absorption refrigerator / cooler / cooler / heater according to claim 2 or 3.
熱交換器、冷媒液用ポンプ、吸収液用ポンプなどの機器
を配管接続して冷媒流路及び吸収液流路を形成した吸収
冷凍機・冷温水機において、結晶を起こしやすい部分に
予めヒータを設置しておき、結晶を起こすと、このヒー
タで結晶融解温度以上に昇温することを特徴とする吸収
冷凍機・冷温水機における結晶融解方法。5. A refrigerant flow path and an absorption liquid flow path are formed by connecting devices such as a regenerator, a condenser, an evaporator, an absorber, a solution heat exchanger, a refrigerant liquid pump, an absorption liquid pump, etc. In an absorption refrigerator / cooler / heater, a heater is installed in advance in a portion where crystals are likely to occur, and when crystals are generated, the temperature of the absorption refrigerator / cooler / heater rises above the crystal melting temperature. Method for melting crystals in a machine.
熱交換器、冷媒液用ポンプ、吸収液用ポンプなどの機器
を配管接続して冷媒流路及び吸収液流路を形成した吸収
冷凍機・冷温水機において、この吸収冷凍機・冷温水機
全体又は一部を放熱防止カバーで被覆し、このカバーの
一端に熱風入口を設けるとともに、このカバーの他端に
熱風出口を設け、この熱風入口に熱風発生機を備えた熱
風供給ダクトを接続したことを特徴とする吸収冷凍機・
冷温水機における結晶融解装置。6. A refrigerant flow path and an absorption liquid flow path are formed by connecting devices such as a regenerator, a condenser, an evaporator, an absorber, a solution heat exchanger, a refrigerant liquid pump, an absorption liquid pump, etc. In an absorption chiller / chiller / heater, the absorption chiller / chiller / heater is covered in whole or in part with a heat radiation prevention cover, and a hot air inlet is provided at one end of this cover and a hot air outlet is provided at the other end of this cover. , An absorption chiller characterized in that a hot air supply duct equipped with a hot air generator is connected to this hot air inlet.
Crystal melting equipment for hot and cold water machines.
熱交換器、冷媒液用ポンプ、吸収液用ポンプなどの機器
を配管接続して冷媒流路及び吸収液流路を形成した吸収
冷凍機・冷温水機において、この吸収冷凍機・冷温水機
全体又は一部を放熱防止カバーで被覆し、このカバーの
一端に熱風入口を設けるとともに、このカバーの他端に
熱風出口を設け、この熱風出口とこの熱風入口とを、熱
風発生機を備えた熱風循環ラインで接続したことを特徴
とする吸収冷凍機・冷温水機における結晶融解装置。7. A refrigerant passage and an absorption liquid passage are formed by connecting devices such as a regenerator, a condenser, an evaporator, an absorber, a solution heat exchanger, a refrigerant liquid pump, and an absorption liquid pump by piping. In an absorption chiller / chiller / heater, the absorption chiller / chiller / heater is covered in whole or in part with a heat radiation prevention cover, and a hot air inlet is provided at one end of this cover and a hot air outlet is provided at the other end of this cover. A crystal melting apparatus in an absorption chiller / cooler / heater, wherein the hot air outlet and the hot air inlet are connected by a hot air circulation line equipped with a hot air generator.
ことを特徴とする請求項６又は７記載の吸収冷凍機・冷
温水機における結晶融解装置。8. The crystal melting device in an absorption refrigerator / cooler / heater according to claim 6, wherein the heat dissipation cover is a decorative casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18996794A JP3281189B2 (en) | 1994-07-20 | 1994-07-20 | Crystal melting method and apparatus in absorption refrigerator / chiller / heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18996794A JP3281189B2 (en) | 1994-07-20 | 1994-07-20 | Crystal melting method and apparatus in absorption refrigerator / chiller / heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0835734A true JPH0835734A (en) | 1996-02-06 |
| JP3281189B2 JP3281189B2 (en) | 2002-05-13 |
Family
ID=16250187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18996794A Expired - Lifetime JP3281189B2 (en) | 1994-07-20 | 1994-07-20 | Crystal melting method and apparatus in absorption refrigerator / chiller / heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3281189B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005059453A2 (en) * | 2003-12-15 | 2005-06-30 | Utc Power, Llc. | Control logic for maintaining proper solution concentration in an absorption chiller in co-generation applications |
| CN111780452A (en) * | 2019-04-04 | 2020-10-16 | 李启飞 | Absorption type wind energy refrigerator |
-
1994
- 1994-07-20 JP JP18996794A patent/JP3281189B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005059453A2 (en) * | 2003-12-15 | 2005-06-30 | Utc Power, Llc. | Control logic for maintaining proper solution concentration in an absorption chiller in co-generation applications |
| WO2005059453A3 (en) * | 2003-12-15 | 2005-10-06 | Utc Power Llc | Control logic for maintaining proper solution concentration in an absorption chiller in co-generation applications |
| US6983616B2 (en) | 2003-12-15 | 2006-01-10 | Utc Power, Llc | Control logic for maintaining proper solution concentration in an absorption chiller in co-generation applications |
| CN111780452A (en) * | 2019-04-04 | 2020-10-16 | 李启飞 | Absorption type wind energy refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3281189B2 (en) | 2002-05-13 |
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