JPS582564A - Composite absorption type refrigerator - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明はフロンｂるいはアノモニアを冷媒とする高圧形
の吸収式冷凍機に採用される複合式の吸収式冷凍装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composite type absorption refrigerating device used in a high-pressure type absorption refrigerating machine using Freon B or anomonia as a refrigerant.

従来の吸収式冷凍機について第１図を参照して説明する
。１は発生器、２は凝縮器、３は膨張弁、４は蒸発器、
５は吸収器、６社減圧弁、７は液ポンプ、８は液熱交換
器、９は混合器で上記各機器は図示の如く配管接続され
吸収式冷凍サイクルが形成されている。図中矢印は冷媒
および溶液の流通方向を示す。A conventional absorption refrigerator will be explained with reference to FIG. 1 is a generator, 2 is a condenser, 3 is an expansion valve, 4 is an evaporator,
5 is an absorber, 6 is a pressure reducing valve, 7 is a liquid pump, 8 is a liquid heat exchanger, and 9 is a mixer. The above-mentioned devices are connected with piping as shown in the figure to form an absorption refrigeration cycle. Arrows in the figure indicate the flow direction of the refrigerant and solution.

発生器１では、冷媒リッチの鎖溶液が熱源によシ加熱さ
れ冷媒ガスを発生する。この冷媒ガスは凝縮器２で凝縮
液化し、膨張弁３で減圧され、次いで蒸発器４で蒸発し
、この時の気化潜熱で水や空気を冷やす。蒸発を終つた
ガス冷媒は混合器９で希液と混合される。この時のム紘
発生器で冷媒ガスを発生し終った冷媒外の薄い液で、液
熱交換器８で放熱しく冷媒リッチの異液を予熱する）、
減圧弁６で減圧されたものである０さて混合液９の混合
液は吸収器５で冷却されて吸収を完了し、濃い液となシ
、再び液ポンプ１で発生器１へ送られる１ 上記傅造の冷凍サイクルにてなる従来の水／ＬｉＢｒ系
の吸収式冷凍機は冷凍サイクル全体の作動圧力範囲が狭
く、また冷媒が水であるため冷凍サイクルの高圧、低圧
とも、その設定圧をあｔｂ変動させることはでき表い。In the generator 1, a refrigerant-rich chain solution is heated by a heat source to generate refrigerant gas. This refrigerant gas is condensed and liquefied in the condenser 2, reduced in pressure by the expansion valve 3, and then evaporated in the evaporator 4, and the latent heat of vaporization at this time cools water and air. The gas refrigerant that has finished evaporating is mixed with a dilute liquid in a mixer 9. At this time, with the thin liquid outside the refrigerant that has finished generating refrigerant gas in the muko generator, the liquid heat exchanger 8 dissipates heat and preheats a different refrigerant-rich liquid.
The mixed liquid 9, whose pressure has been reduced by the pressure reducing valve 6, is then cooled in the absorber 5 to complete absorption, and the concentrated liquid is again sent to the generator 1 by the liquid pump 11. The conventional water/LiBr-based absorption refrigerator that uses Fuzo's refrigeration cycle has a narrow operating pressure range for the entire refrigeration cycle, and since the refrigerant is water, both the high and low pressures of the refrigeration cycle cannot exceed the set pressure. It is possible to vary tb.

従つて７０〜１５℃の比較的高温で単一温度の冷水しか
得ることができなかった。Therefore, only single-temperature cold water could be obtained at a relatively high temperature of 70 to 15°C.

本発明は上記Ｋｉｌ！みて頼切され九もので、単一の高
圧に対し、値数の低圧（蒸発圧力または蒸発温度）を選
択的に得ることができ、従って、冷凍、冷蔵、冷水、空
調等の用途に適した冷水を一台の吸収式冷凍機で得るこ
とを目的とする◇上記目的を達成するため本発明は、凝
縮器出口から発生器に至る経路を複数本に分岐し、各分
岐経路に夫々膨張弁、蒸発器、溶液減圧弁、吸収器およ
び液ポンプを備え、各蒸発器の蒸発温度を所望温度に設
定してなる特徴を有する。The present invention is directed to the above-mentioned Kill! It is highly reliable and can selectively obtain a number of low pressures (evaporation pressure or evaporation temperature) for a single high pressure, so it is suitable for applications such as refrigeration, refrigeration, cold water, air conditioning, etc. The purpose of the present invention is to obtain cold water with a single absorption refrigerator.◇To achieve the above purpose, the present invention branches the path from the condenser outlet to the generator into multiple paths, and installs an expansion valve in each branch path. , an evaporator, a solution pressure reducing valve, an absorber, and a liquid pump, and the evaporation temperature of each evaporator is set to a desired temperature.

本発明の一実施例を第２図を参照して説明する。１１は
発生器、１２は凝縮器で、出口側経路２０を三経路に分
岐し、夫々の経路２０＆、２０ｂ、２０Ｃは膨張弁１３
１Ｌ％　　１３ｔ）％　　１３０と蒸発器ｔｅａ、１４
ｂ％１４０を直列に介在し、混合器１９＆、１９ｂ、１
９０に至る。また発生器１１底部に接続された希液経路
２１も液熱交換器１８を経て三経路２１今、２１１）、
２１０に分岐し、夫々の経路は減圧弁１６＆、１６ｂ％
１６０を介在して上記混合部１９＆、１９ｔｌ、１９０
に至シ、上記経路２（１％　２０ｂ１２００と合流し、
次いで夫々吸収器１５＆、１５１）％　　１５０に接続
される。吸収器の出口側の夫々の経路２１，２２１）％
２？には各々液ポンプ１７＆、１７ｂ。An embodiment of the present invention will be described with reference to FIG. 11 is a generator, 12 is a condenser, and the outlet side path 20 is branched into three paths, and each path 20&, 20b, 20C is an expansion valve 13.
1L% 13t)% 130 and evaporator tea, 14
b% 140 in series, mixers 19&, 19b, 1
It reaches 90. In addition, the diluted liquid path 21 connected to the bottom of the generator 11 also passes through the liquid heat exchanger 18 to three paths 21, 211),
210, and each route is connected to pressure reducing valve 16&, 16b%
The mixing section 19&, 19tl, 190 through 160
Finally, the route 2 (1%) merges with 20b1200,
They are then connected to absorbers 15&, 151)% 150, respectively. 21,221)% of the respective paths on the outlet side of the absorber
2? have liquid pumps 17&, 17b, respectively.

１　’７０を介在し、次いで経路２２に集電され前述の
液熱交換器１８を経て発生器１１に接続されるる。矢印
は冷媒および溶液の流通方向を示す。1 '70, and then collected in the path 22 and connected to the generator 11 via the liquid heat exchanger 18 mentioned above. Arrows indicate the flow direction of the refrigerant and solution.

上記構造の複合吸収式冷凍サイクルの作用について以下
説明する。The operation of the composite absorption refrigeration cycle having the above structure will be explained below.

発生器１１で発生した冷媒ガスは、凝縮器１２で凝縮液
化し、液の一部は膨張弁１１で減圧膨張し、蒸発器１・
４ａで蒸発圧力ｐＬ１のもとで蒸発する。蒸発を終つた
冷媒ガスは減圧弁１６ａで減圧された希液と混合され、
吸収、器１５１で同じ圧力ｐＬ１のもとて吸収を終え濃
液となってポンプ１７ａで発生器１１に圧送される。っ
ぎに凝縮器１２で凝縮液化し九冷媒の他の一部は膨張弁
１３ｂで減圧膨張し、蒸発器１４ｂで前とは異なる蒸発
圧力ｐＬ！のもとで蒸発する。蒸発器ｔｕｂで蒸発を終
わった冷媒はガスになシ、減圧弁１６ｍ）で減圧され九
希液と混合され、吸収器」５１１で吸収を終る。この濃
液は液ポンプ１７ｍ）Ｋよシ発生器１１に圧送される。The refrigerant gas generated in the generator 11 is condensed and liquefied in the condenser 12, and a portion of the liquid is depressurized and expanded in the expansion valve 11, and then transferred to the evaporator 1.
4a under an evaporation pressure pL1. The refrigerant gas that has finished evaporating is mixed with the dilute liquid whose pressure has been reduced by the pressure reducing valve 16a,
Absorption is completed in the vessel 151 under the same pressure pL1, and the concentrated liquid is pumped to the generator 11 by the pump 17a. Then, the other part of the refrigerant is condensed and liquefied in the condenser 12, and the other part is expanded under reduced pressure in the expansion valve 13b, and then in the evaporator 14b, the evaporation pressure pL is different from that before! evaporates under The refrigerant that has finished evaporating in the evaporator tub becomes a gas, is depressurized by a pressure reducing valve 16m), is mixed with a dilute liquid, and is absorbed in an absorber 511. This concentrated liquid is pumped to the generator 11 through a liquid pump 17m)K.

凝縮器１２を出た冷媒液の＊ａの一部も蒸発器１４６に
て別の低圧ｐｂｉのもとで同様の過程をたどり、液ポン
プ１７０で圧送される。とれら液ポンプ１７１．１７１
１％　　１７０の吐出液は合流して、液熱交換器１８を
経て予熱されたのち発生器′１１に入シ、再び冷媒ガス
発生に使われる。A portion of the refrigerant liquid *a that has exited the condenser 12 also undergoes a similar process in the evaporator 146 under another low pressure pbi, and is pumped by the liquid pump 170. Torera liquid pump 171.171
The 1% 170 discharged liquid is combined and preheated through the liquid heat exchanger 18 before entering the generator '11 and being used again to generate refrigerant gas.

以上説明したように本発明によれば、複数の蒸発器では
各々異なる蒸発圧力で蒸発が起る。したがって各蒸発器
を別の目的、即ち冷房、冷凍、冷蔵等と使い分け、それ
に適した蒸発圧力に瞭定する事が可能である。ま九と一
トボングサイクルとして使う場合は熱源温度に応じて、
例えば太陽熱コレクタを熱源とする蒸発器は作動圧力を
高く、温度の低い空気熱源とする蒸発器は作動圧力を低
く設定する。このようにして冷凍サイクル全体−として
の効率を高め、多目的とする事が出来る０As explained above, according to the present invention, evaporation occurs at different evaporation pressures in the plurality of evaporators. Therefore, each evaporator can be used for different purposes, such as cooling, freezing, and refrigeration, and it is possible to clearly determine the evaporation pressure suitable for that purpose. When using it as a maku to itto bong cycle, depending on the heat source temperature,
For example, an evaporator that uses a solar collector as a heat source has a high operating pressure, and an evaporator that uses a low-temperature air heat source has a low operating pressure. In this way, the efficiency of the entire refrigeration cycle can be increased and it can be used for multiple purposes.

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

第１図は従来の吸収式冷凍ｔイクル図、第２図は本発明
の一実施例を示す複合式吸収式冷凍ナイクル図を示す。 １１−・・発生器　１２−・・凝縮器　１３’−１３ｂ
４１３０−・・膨張弁　１４＆、１４ｔｌ、１４０−・
・蒸発器　１５＆、１５ｂ、１５＠−ａ収４６　１６＆
、１６ｍ）、１６０−・・−圧伸　１７１Ｌ％　　１７
ｔ）、１７０・・・液ボンプFIG. 1 shows a conventional absorption refrigeration t-cycle diagram, and FIG. 2 shows a composite absorption refrigeration cycle diagram showing an embodiment of the present invention. 11-... Generator 12-... Condenser 13'-13b
4130-・Expansion valve 14&, 14tl, 140-・
・Evaporator 15&, 15b, 15@-a 46 16&
, 16m), 160--Companding 171L% 17
t), 170...Liquid pump

Claims (1)

【特許請求の範囲】[Claims] 発生器、凝縮器、膨張弁、蒸発器、溶液減圧弁、吸収器
および液ポンプを備えてなる吸収式冷凍装置において、
凝縮器出口°経路を複数本に分岐し、各経路に夫々３１
脹弁、蒸発□器を設け、発生器底部の溶液経路も複数本
に分岐し夫々減圧弁を経て上記分岐経路と合流し、合流
分岐経路に夫々吸収器、液ポンプを設けて発生器に接続
してなシ、各蒸発器の蒸発温度を所望温度に設定してな
ることを％徴とする複合吸収式冷凍装置。In an absorption refrigeration system comprising a generator, a condenser, an expansion valve, an evaporator, a solution pressure reducing valve, an absorber and a liquid pump,
The condenser exit ° route is branched into multiple routes, and each route has 31
An expansion valve and an evaporator are installed, and the solution path at the bottom of the generator is also branched into multiple lines, each of which passes through a pressure reducing valve and merges with the above branch path, and an absorber and a liquid pump are installed in each of the merged and branch paths to connect to the generator. This is a composite absorption refrigeration system in which the evaporation temperature of each evaporator is set to a desired temperature.