JPH02192553A - Air-cooled assorptive type refrigerator - Google Patents

Air-cooled assorptive type refrigerator

Info

Publication number
JPH02192553A
JPH02192553A JP1104689A JP1104689A JPH02192553A JP H02192553 A JPH02192553 A JP H02192553A JP 1104689 A JP1104689 A JP 1104689A JP 1104689 A JP1104689 A JP 1104689A JP H02192553 A JPH02192553 A JP H02192553A
Authority
JP
Japan
Prior art keywords
absorber
heat exchanger
cooled
concentration liquid
air
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.)
Pending
Application number
JP1104689A
Other languages
Japanese (ja)
Inventor
Mokichi Kurosawa
黒沢 茂吉
Seiichiro Fujimaki
藤巻 誠一郎
Atsushi Sekikawa
関川 敦司
Yonezo Ikumi
米造 井汲
Tadahito Kobayashi
唯人 小林
Takao Tanaka
貴雄 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Tokyo Gas Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Tokyo Gas Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd, Tokyo Gas Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP1104689A priority Critical patent/JPH02192553A/en
Publication of JPH02192553A publication Critical patent/JPH02192553A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent a flash of a high concentration liquid in an absorber to sufficiently absorb refrigerant vapor from an evaporator by providing a heat exchanger cooled by cooling air and cooling the high concentration liquid down to a saturation temperature or lower of pressure of the absorber after the high concentration liquid from a low temperature heat exchanger is cooled by the use of the absorber. CONSTITUTION:After high concentration liquid produced in a high temperature generator 15 heated by means of a burner 10 is sprayed by using a low tempera ture generator 7 through a high temperature heat exchanger 11 to introduce an intermediate concentration liquid accumulated in a low temperature generator 7 on the upper part of a heat exchanger 14 of a side part of a flowing-down pipe 4 of an absorber 1 through a low temperature heat exchanger 12 so as to cool the absorber 1 of forced cooling air caused by the rotation of a fan 8 during flowing-down in the heat exchanger 14, it is cooled down to saturation temperature or lower of the pressure of the absorber 1 by cooling air. In this case, the high concentration liquid allowed to flow in the heat exchanger 14 is allowed to flow from the upper part thereof to take out from the lower part thereof by natural flowing-down.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は空冷吸収式冷凍機の改良に関するものである。[Detailed description of the invention] <Industrial application field> The present invention relates to improvements in air-cooled absorption refrigerators.

〈従来の技術〉 従来の空冷吸収式冷凍機の技術としては、例えば特開昭
58−208559号公報が知られている。この場合の
吸収式冷凍機は、低温熱交換器を出た濃液を直接、或い
は吸収器から高温再生器へ送られる稀酸の一部を再循環
して、濃液と混合して吸収器に散布する構成となってい
る。
<Prior Art> As a technology of a conventional air-cooled absorption refrigerator, for example, Japanese Patent Laid-Open No. 58-208559 is known. In this case, the absorption chiller recirculates the concentrated liquid directly from the low-temperature heat exchanger, or recirculates a portion of the dilute acid sent from the absorber to the high-temperature regenerator, mixes it with the concentrated liquid, and supplies it to the absorber. The structure is such that it is distributed to

〈発明が解決しようとする課題〉 しかし、従来この種の空冷吸収式冷凍機においては、低
温熱交換器を出た濃液の温度が、吸収器内圧力の飽和温
度よりも高いため、濃液が吸収器に散布されたとき、フ
ラッシュするため、蒸発器からの冷媒蒸気に、フラッシ
ュして発生した冷媒蒸気も加わるので、縦型流下液模式
吸収器内の冷媒蒸気の抵抗が大きくなり、吸収器の性能
が十分に活かされないと云う問題があった。
<Problem to be solved by the invention> However, in conventional air-cooled absorption refrigerators of this type, the temperature of the concentrated liquid leaving the low-temperature heat exchanger is higher than the saturation temperature of the pressure inside the absorber. When it is sprayed into the absorber, it flashes, so the refrigerant vapor generated by the flash is added to the refrigerant vapor from the evaporator, so the resistance of the refrigerant vapor in the vertical falling liquid model absorber increases, and the absorption There was a problem that the performance of the equipment was not fully utilized.

本発明は上記実情に鑑み、吸収器内での7濃液のフラッ
シュを防止し、吸収器本来の性能が十分に活かされ、蒸
発器からの冷媒蒸気を十分に吸収することができるよう
にした空冷吸収式冷凍機を提供することを目的としたも
のである。
In view of the above circumstances, the present invention prevents the flashing of concentrated liquid in the absorber, makes full use of the absorber's original performance, and makes it possible to sufficiently absorb refrigerant vapor from the evaporator. The purpose is to provide an air-cooled absorption refrigerator.

く課題を解決するための手段〉 本発明は、パラレルフローの空冷吸収式冷凍機において
、低温熱交換器出口から流出の濃液を、吸収器を冷却し
た後の冷却空気で冷却するよう熱交換器を吸収器の下流
側に設け、該熱交換器で濃液を冷却した後、吸収器で散
布するようにしたものであり、また、この場合の熱交換
器は、濃液を上部より送液し下部より取出して吸収器で
散布するようにしたものである。
Means for Solving the Problems> The present invention provides a parallel flow air-cooled absorption refrigerator that performs heat exchange so that the concentrated liquid flowing out from the outlet of the low-temperature heat exchanger is cooled with cooling air after cooling the absorber. A heat exchanger is installed on the downstream side of the absorber, and the concentrated liquid is cooled by the heat exchanger and then sprayed by the absorber. The liquid is taken out from the bottom of the drain and sprayed using an absorber.

く作用〉 上記のような構成のため、高温再生器を出た濃液を、吸
収器の下流側の冷却空気で、吸収器内圧力の飽和温度以
下まで冷却するため、吸収器内の冷媒蒸気通路は、蒸発
器で発生した冷媒蒸気のみであるので、吸収器内の冷媒
蒸気の圧力損失も少なく吸収器の性能が向上すると共に
、濃吸収液の顕熱を吸収器の下流側の冷却空気で冷却す
るため、この分冷却空気の量を減らすことができる。
Due to the above configuration, the concentrated liquid exiting the high-temperature regenerator is cooled down to below the saturation temperature of the absorber internal pressure using the cooling air downstream of the absorber. Since the passage only carries the refrigerant vapor generated in the evaporator, the pressure loss of the refrigerant vapor in the absorber is small, improving the performance of the absorber, and the sensible heat of the concentrated absorption liquid is transferred to the cooling air downstream of the absorber. The amount of cooling air can be reduced by this amount.

〈実施例〉 以下、本発明を実施例の図面に基づいて説明すれば、次
の通りである。
<Example> The present invention will be described below based on the drawings of the example.

図面はパラレルフローの空冷吸収式冷凍機を示し、1は
フィン3付の流下管4を上部に鉛直配設してなる吸収器
で、該吸収器1の上端に蒸発器2を設けると共に、該吸
収器1に溜まった種族を吸収液ポンプ13を介し低温熱
交換器12から高温熱交換器11を経てバーナ10を備
えた高温再生器9に導き、該高温再生器9にて発生する
濃液を低温再生器3に導くようにし、該低温再生器7の
下部に凝縮器5の上部に配設のフィン3付の流下管6を
設け、且つ前記対向せる流下管4.6の中間上方にファ
ン8を設置し、また、この吸収器1の下流側となる流下
管4の内側(ファン8側)に濃液冷却器となる熱交換器
14を併設し、該熱交換器14は前記低温熱交換器12
を経る濃液管15を上端に接続し、上部より下部に送液
し、この冷却された濃液を吸収器1の上部より散布する
構成としてなる。
The drawing shows a parallel flow air-cooled absorption refrigerator, in which 1 is an absorber in which a downflow pipe 4 with fins 3 is arranged vertically at the top, an evaporator 2 is provided at the upper end of the absorber 1, and an evaporator 2 is provided at the upper end of the absorber 1. The waste accumulated in the absorber 1 is guided through an absorption liquid pump 13 from a low temperature heat exchanger 12 to a high temperature heat exchanger 11 to a high temperature regenerator 9 equipped with a burner 10, and the concentrated liquid generated in the high temperature regenerator 9 is A downflow pipe 6 with fins 3 disposed above the condenser 5 is provided at the lower part of the low temperature regenerator 7, and a downflow pipe 6 with fins 3 disposed above the condenser 5 is provided at the lower part of the low temperature regenerator 7, and at the upper middle of the opposing downflow pipes 4.6. A fan 8 is installed, and a heat exchanger 14 serving as a concentrated liquid cooler is also installed inside the downflow pipe 4 (on the fan 8 side) which is the downstream side of the absorber 1. heat exchanger 12
A concentrated liquid pipe 15 is connected to the upper end, and the liquid is sent from the upper part to the lower part, and the cooled concentrated liquid is sprayed from the upper part of the absorber 1.

次に、この作用を説明すると、このような空冷吸収式冷
凍機の運転にあっては、バーナ10で熱せられる高温再
生器15にて発生の濃液を、高温熱交換器11を介して
低温再生器7で散布し、該低温再生器7で溜まった中間
濃液を、低温熱交換器12を通過して吸収器lの流下管
4の側部の熱交換器14の上部に導き、該熱交換器14
内を流下中に、ファン8の回転に起因する強制冷却空気
の吸収器1を冷却した後の冷却空気で、前記吸収器1内
圧力の飽和温度以下まで冷却する。この場合、熱交換器
14を流れる濃液を上部より送液し自然流下を持って下
部より取出すようにしてなるため、無理なく確実に所定
の温度に冷却しえる。
Next, to explain this effect, when operating such an air-cooled absorption refrigerator, the concentrated liquid generated in the high temperature regenerator 15 heated by the burner 10 is transferred to a low temperature via the high temperature heat exchanger 11. The intermediate concentrated liquid dispersed in the regenerator 7 and collected in the low temperature regenerator 7 is guided to the upper part of the heat exchanger 14 on the side of the downstream pipe 4 of the absorber 1 through the low temperature heat exchanger 12. Heat exchanger 14
The forced cooling air generated by the rotation of the fan 8 cools the absorber 1 while flowing down, and the cooling air cools the absorber 1 to a temperature below the saturation temperature of the pressure inside the absorber 1. In this case, the concentrated liquid flowing through the heat exchanger 14 is sent from the upper part and taken out from the lower part with natural flow, so that it can be easily and reliably cooled to a predetermined temperature.

このように、冷却された濃液を熱交換器14の下端より
吸収器1の上端に導いて散布する。
In this way, the cooled concentrated liquid is introduced from the lower end of the heat exchanger 14 to the upper end of the absorber 1 and dispersed.

この濃液は前記の如く吸収器内圧力の飽和温度以下のた
めフラッシュすることがなく、従って吸収器1内の冷媒
蒸気通路は蒸発器2で発生した冷媒蒸気のみであるので
、吸収器1内の冷媒蒸気の圧力損失を小さく該吸収器1
の性能が向上すると共に、濃吸収液の顕熱を吸収器1の
下流側の冷却空気で冷却するので、この分冷却空気の量
を減らすことができる。
As mentioned above, this concentrated liquid does not flash because it is below the saturation temperature of the pressure inside the absorber. Therefore, the refrigerant vapor passage inside the absorber 1 is only the refrigerant vapor generated in the evaporator 2, so the inside of the absorber 1 is The absorber 1 reduces the pressure loss of the refrigerant vapor in the absorber 1.
In addition, since the sensible heat of the concentrated absorption liquid is cooled by the cooling air on the downstream side of the absorber 1, the amount of cooling air can be reduced accordingly.

〈発明の効果〉 上述のように本発明の空冷吸収式冷凍機は、低温熱交換
器からの濃液を吸収器を冷却した後の冷却空気で冷却す
る熱交換器を設け、濃液を吸収器内圧力の飽和温度以下
まで冷却するよう1ピしたため、吸収器内の冷媒蒸気の
圧力損失を小さくし吸収器の性能が向上し、濃吸収液の
顕熱を吸収器の下流側の冷却空気で冷却するため、この
分冷却空気の量を減らすことができ、延いてはファンモ
ータ動力を小さくすることができる等の効果を奏する。
<Effects of the Invention> As described above, the air-cooled absorption refrigerator of the present invention is provided with a heat exchanger that cools the concentrated liquid from the low-temperature heat exchanger with the cooling air after cooling the absorber, and absorbs the concentrated liquid. Since the single pipe is cooled to below the saturation temperature of the internal pressure, the pressure loss of the refrigerant vapor in the absorber is reduced and the performance of the absorber is improved, and the sensible heat of the concentrated absorption liquid is transferred to the cooling air downstream of the absorber. Since the cooling is carried out by the cooling method, the amount of cooling air can be reduced by that amount, and the power of the fan motor can be reduced.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の使用実施例を示す概略図である。 1・・・吸収器、2・・・蒸発器、3・・・フィン、4
・・・流下管、5・・・凝縮器、6・・・流下管、7・
・・低温再生器、8・・・ファン、9・・・高温再生器
、1o・・・バーナ、11・・・高温熱交換器、12・
・・低温熱交換器、13・・・吸収液ポンプ、14・・
・熱交換器。
The drawings are schematic illustrations of embodiments of use of the invention. 1...Absorber, 2...Evaporator, 3...Fin, 4
... Downstream pipe, 5... Condenser, 6... Downstream pipe, 7.
...Low temperature regenerator, 8...Fan, 9...High temperature regenerator, 1o...Burner, 11...High temperature heat exchanger, 12.
...Low temperature heat exchanger, 13...Absorption liquid pump, 14...
·Heat exchanger.

Claims (1)

【特許請求の範囲】 1、パラレルフローの空冷吸収式冷凍機において、低温
熱交換器出口から流出の濃液を、吸収器を冷却した後の
冷却空気で冷却するよう熱交換器を吸収器の下流側に設
け、該熱交換器で濃液を冷却した後、吸収器で散布する
ことを特徴とした空冷吸収式冷凍機。 2、熱交換器が、濃液を上部より送液し下部より取出し
て吸収器で散布する熱交換器である請求項1記載の空冷
吸収式冷凍機。
[Claims] 1. In a parallel flow air-cooled absorption refrigerator, the heat exchanger is connected to the absorber so that the concentrated liquid flowing out from the outlet of the low-temperature heat exchanger is cooled by the cooling air after cooling the absorber. An air-cooled absorption refrigerating machine, which is installed on the downstream side and is characterized in that the concentrated liquid is cooled by the heat exchanger and then dispersed by the absorber. 2. The air-cooled absorption refrigerator according to claim 1, wherein the heat exchanger is a heat exchanger that sends the concentrated liquid from the upper part, takes it out from the lower part, and distributes it in an absorber.
JP1104689A 1989-01-20 1989-01-20 Air-cooled assorptive type refrigerator Pending JPH02192553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1104689A JPH02192553A (en) 1989-01-20 1989-01-20 Air-cooled assorptive type refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1104689A JPH02192553A (en) 1989-01-20 1989-01-20 Air-cooled assorptive type refrigerator

Publications (1)

Publication Number Publication Date
JPH02192553A true JPH02192553A (en) 1990-07-30

Family

ID=11767094

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1104689A Pending JPH02192553A (en) 1989-01-20 1989-01-20 Air-cooled assorptive type refrigerator

Country Status (1)

Country Link
JP (1) JPH02192553A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0485071U (en) * 1990-11-30 1992-07-23

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0485071U (en) * 1990-11-30 1992-07-23

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