JPH0473058B2 - - Google Patents
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- Publication number
- JPH0473058B2 JPH0473058B2 JP59125107A JP12510784A JPH0473058B2 JP H0473058 B2 JPH0473058 B2 JP H0473058B2 JP 59125107 A JP59125107 A JP 59125107A JP 12510784 A JP12510784 A JP 12510784A JP H0473058 B2 JPH0473058 B2 JP H0473058B2
- Authority
- JP
- Japan
- Prior art keywords
- absorber
- air
- solution
- refrigerant vapor
- evaporator
- 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 - Lifetime
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- Sorption Type Refrigeration Machines (AREA)
Description
【発明の詳細な説明】 〔発明の利用分野〕 本発明は空冷吸収式冷水機に関する。[Detailed description of the invention] [Field of application of the invention] The present invention relates to an air-cooled absorption water chiller.
従来の空冷吸収式冷水機は、特開昭58−208559
号に記載のように、蒸発器で蒸発した冷媒蒸気
は、蒸発器上部から蒸気管を通つて吸収器へ流入
する。この場合、冷媒蒸気の体積流量は極めて大
きい。したがつて、特に蒸気管において管内の小
通路面積に低圧の冷媒蒸気を流すことは非常にむ
ずかしいという問題があつた。
The conventional air-cooled absorption water chiller was published in Japanese Patent Application Laid-open No. 58-208559.
As described in the above, the refrigerant vapor evaporated in the evaporator flows from the top of the evaporator through the steam pipe into the absorber. In this case, the volumetric flow rate of the refrigerant vapor is extremely large. Therefore, particularly in steam pipes, there has been a problem in that it is very difficult to flow low-pressure refrigerant vapor through a small passage area within the pipe.
また、水冷式と同程度の蒸発温度を得ようとす
ると、空冷吸収器出口と臭化リチウム溶液の濃度
を上げる必要があるが、これは、臭化リチウムの
晶出の原因となる。したがつて、空冷吸収器の溶
液出口温度を下げることは不可欠であつた。 Furthermore, in order to obtain an evaporation temperature comparable to that of the water-cooled type, it is necessary to increase the concentration of the lithium bromide solution at the outlet of the air-cooled absorber, but this causes crystallization of lithium bromide. Therefore, it was essential to lower the solution outlet temperature of the air-cooled absorber.
本発明の目的は、小形化した空冷吸収水機を提
供することにある。
An object of the present invention is to provide a compact air-cooled water absorption machine.
本発明は、高温再生器、低温再生器、空冷の凝
縮器、蒸発器、空冷の吸収器よりなる吸収式冷水
機において、前記吸収器を出た希溶液又は冷媒蒸
気が混在する希溶液と、前記蒸発器で蒸発した冷
媒蒸気とを熱交換する手段を備えたものである。
The present invention provides an absorption water chiller comprising a high-temperature regenerator, a low-temperature regenerator, an air-cooled condenser, an evaporator, and an air-cooled absorber. It is provided with means for exchanging heat with the refrigerant vapor evaporated in the evaporator.
以下本発明の一実施例を第１図により説明す
る。吸収式冷水機１は、高温再生器２、低温再生
器３、凝縮器４、蒸発器５、吸収器６、高温熱交
換器７、低温熱交換器８、バーナ９、希溶液ポン
プ１０、濃溶液ポンプ１１、冷媒ポンプ１２によ
り構成される。高温再生器２内の臭化リチウム水
溶液はバーナ９により加熱され、冷媒蒸気を発生
し溶液は濃縮される。発生された冷媒蒸気は、冷
媒ライン１３を通つて低温再生器３内の加熱管１
４に流入する。低温再生器３内の臭化リチウム水
溶液は、加熱管１４内の冷媒蒸気により加熱さ
れ、ここでも冷媒蒸気を発生する。ここで、加熱
管１４内の冷媒蒸気は液化し、臭化リチウム水溶
液は濃縮する。
An embodiment of the present invention will be described below with reference to FIG. The absorption type water chiller 1 includes a high temperature regenerator 2, a low temperature regenerator 3, a condenser 4, an evaporator 5, an absorber 6, a high temperature heat exchanger 7, a low temperature heat exchanger 8, a burner 9, a dilute solution pump 10, and a concentrated solution pump 10. It is composed of a solution pump 11 and a refrigerant pump 12. The aqueous lithium bromide solution in the high-temperature regenerator 2 is heated by the burner 9 to generate refrigerant vapor and concentrate the solution. The generated refrigerant vapor passes through the refrigerant line 13 to the heating pipe 1 in the low temperature regenerator 3.
4. The lithium bromide aqueous solution in the low-temperature regenerator 3 is heated by the refrigerant vapor in the heating tube 14, and refrigerant vapor is also generated here. Here, the refrigerant vapor in the heating tube 14 is liquefied, and the lithium bromide aqueous solution is concentrated.
低温再生器３で発生した冷媒蒸気は、冷媒ライ
ン１５から凝縮器４に入り、一方、液化した冷媒
は、冷媒ライン１６を通つて冷媒ライン１７の冷
媒と合流する。凝縮器４には管外にフイン１８が
あり、フアン１９により室外空気がこのフイン１
８を通して流れるため、凝縮器４内の冷媒蒸気は
冷却され、液化する。液冷媒は冷媒ライン１７か
ら、冷媒ライン１６からの液冷媒と合流し、さら
に冷媒ポンプ１２から吐出された液冷媒とを合流
して、冷媒ライン２１から蒸発器５に流入する。 The refrigerant vapor generated in the low temperature regenerator 3 enters the condenser 4 through the refrigerant line 15, while the liquefied refrigerant passes through the refrigerant line 16 and joins the refrigerant in the refrigerant line 17. The condenser 4 has fins 18 outside the tube, and a fan 19 blows outdoor air through the fins 1.
8, the refrigerant vapor in the condenser 4 is cooled and liquefied. The liquid refrigerant flows from the refrigerant line 17 into the evaporator 5 through the refrigerant line 21 after merging with the liquid refrigerant from the refrigerant line 16 and further merging with the liquid refrigerant discharged from the refrigerant pump 12 .
蒸発器５内には冷水パイプ２２があり、液冷媒
は散布器２３から冷水パイプ２２上に散布され
る。蒸発器５内は減圧下に保たれているので、液
冷媒は蒸発し、その潜熱は冷水パイプ内の冷水か
らうばう。蒸発し切れなかつた液冷媒は、冷媒だ
め２４にたまり、冷媒ライン２５、冷媒ポンプ１
２、冷媒ライン２６を通つて、再び冷媒ライン２
１に戻る。ここで蒸発した冷媒蒸気は、冷媒流路
４８を上昇して吸収器６に流入する。 There is a cold water pipe 22 in the evaporator 5, and liquid refrigerant is sprayed onto the cold water pipe 22 from a sprayer 23. Since the inside of the evaporator 5 is maintained under reduced pressure, the liquid refrigerant evaporates and its latent heat is taken away from the cold water in the cold water pipe. The liquid refrigerant that has not completely evaporated accumulates in the refrigerant reservoir 24 and is transferred to the refrigerant line 25 and the refrigerant pump 1.
2. Pass through the refrigerant line 26 and reconnect to the refrigerant line 2.
Return to 1. The refrigerant vapor evaporated here ascends the refrigerant flow path 48 and flows into the absorber 6.
吸収器６は垂直管２８及び管外にあるフイン２
９で構成されている。 The absorber 6 includes a vertical pipe 28 and fins 2 outside the pipe.
It consists of 9.
また、垂直管２８の上部には散布器３０があ
り、濃溶液ポンプ１１から濃溶液ラインを通つて
きた濃溶液が、その散布器３０から散布される。
散布された濃溶液は、垂直管２８の管壁にそつて
流下しながら管外を流れる室外空気により冷却さ
れ、水蒸気圧は下がる。そこで、蒸発器５からの
冷媒蒸気を吸収して希溶液になる。 Further, there is a sprayer 30 in the upper part of the vertical pipe 28, and the concentrated solution coming from the concentrated solution pump 11 through the concentrated solution line is sprayed from the sprayer 30.
The sprayed concentrated solution is cooled by outdoor air flowing outside the tube while flowing down along the wall of the vertical tube 28, and its water vapor pressure decreases. There, it absorbs the refrigerant vapor from the evaporator 5 and becomes a dilute solution.
吸収器６のまわりにはダクト３２があり、その
ダクトは、吸収器６を包み、フアン２０の吸収ダ
クトになる。吸収器垂直管２８とダクト３２との
間に風路３４が形成され、フアン２０の回転によ
り風路３４では上向きの風が生じ、この風によつ
て吸収器フイン２９及び垂直管２８が冷却され
る。また、風路３４を流れる空気は、吸気口３３
を通して室外空気が吸引される。 There is a duct 32 around the absorber 6, which wraps around the absorber 6 and becomes the absorption duct of the fan 20. An air passage 34 is formed between the absorber vertical pipe 28 and the duct 32, and the rotation of the fan 20 generates an upward wind in the air passage 34, and the absorber fin 29 and the vertical pipe 28 are cooled by this wind. Ru. Moreover, the air flowing through the air passage 34 is
Outdoor air is sucked through.
このように、吸収器６において、溶液及び冷媒
蒸気流と冷却空気流とは向流になり、吸収器６の
効率が向上し、したがつて、空冷吸収器が実現す
る。また、フイン２８での熱伝達を向上させるた
めに、スリツト３５を設ける。さらに、垂直管２
８内には、らせん板又は詰めもの（図示せず）を
入れ、濃溶液と管壁との接触及び濃溶液と冷媒と
の接触を向上させる。さらに、垂直管２８の内面
には、フイン又は溝（図示せず）を設けて、管内
熱伝達を向上させる。 Thus, in the absorber 6, the solution and refrigerant vapor flow and the cooling air flow are countercurrent, increasing the efficiency of the absorber 6 and thus realizing an air-cooled absorber. Additionally, slits 35 are provided to improve heat transfer in the fins 28. Furthermore, vertical pipe 2
A spiral plate or padding (not shown) is placed within 8 to improve contact between the concentrated solution and the tube wall and between the concentrated solution and the refrigerant. Additionally, the inner surface of the vertical tube 28 may be provided with fins or grooves (not shown) to improve intra-tube heat transfer.
吸収器６を出た希溶液は、さらに第二吸収器６
２に入る。第二吸収器６２は冷媒流路４８内に設
置され、伝熱管６３とフイン６４とから構成され
ている。第二吸収器６２では、伝熱管６３内の希
溶液又は一部冷媒蒸気とともに流れている希溶液
と、冷媒流路４８内を上昇する冷媒蒸気とが熱交
換し、希溶液はさらに冷却されて臭化リチウム濃
度がさらに低い溶液ができ、同時に吸収作用を促
進させる。ここでできた希溶液の臭化リチウム濃
度は、十分に薄いため、空冷吸収器をもつた冷水
機が実現する。溶液ポンプ１０に吸引された希溶
液は、希溶液ライン３６から溶液熱交換器７で予
熱され、分流して希溶液ライン３８から低温再生
器３に入る。さらに残りの希溶液は、溶液熱交換
器７で予熱され、希溶液ライン３９から高温再生
器２に流入する。 The dilute solution leaving the absorber 6 is further transferred to the second absorber 6.
Enter 2. The second absorber 62 is installed within the refrigerant flow path 48 and includes heat transfer tubes 63 and fins 64. In the second absorber 62, the dilute solution in the heat transfer tube 63 or the dilute solution partially flowing together with the refrigerant vapor and the refrigerant vapor rising in the refrigerant flow path 48 exchange heat, and the dilute solution is further cooled. A solution with even lower lithium bromide concentration is created, which at the same time promotes the absorption action. The dilute solution produced here has a sufficiently low lithium bromide concentration, making it possible to create a water cooler with an air-cooled absorber. The dilute solution sucked into the solution pump 10 is preheated by the solution heat exchanger 7 from the dilute solution line 36, and is divided into streams and enters the low temperature regenerator 3 from the dilute solution line 38. Further, the remaining dilute solution is preheated by the solution heat exchanger 7 and flows into the high temperature regenerator 2 from the dilute solution line 39.
一方、高温再生器２の濃溶液は、濃溶液ライン
４０から溶液熱交換器７に入り、希溶液を加熱し
ながら自らは冷却し、低温再生器３から濃溶液ラ
イン４２を通つて溶液熱交換器７の中間部に流入
した濃溶液と合流し、さらに希溶液を加熱し、濃
溶液ライン３１から吸収器６に流入する。 On the other hand, the concentrated solution from the high-temperature regenerator 2 enters the solution heat exchanger 7 from the concentrated solution line 40, cools itself while heating the dilute solution, and passes from the low-temperature regenerator 3 through the concentrated solution line 42 for solution heat exchange. It merges with the concentrated solution that has flowed into the middle part of the vessel 7, further heats the dilute solution, and then flows into the absorber 6 from the concentrated solution line 31.
次に、第２図により本発明の他の実施例を説明
する。第１図の実施例との相違する発明部分のみ
について述べる。 Next, another embodiment of the present invention will be explained with reference to FIG. Only the parts of the invention that are different from the embodiment shown in FIG. 1 will be described.
第二吸収器６２は、蒸発器シエル２７及び冷媒
流路４８の外側に設けたジヤケツト６５よりなつ
ている。第二吸収器６２では、ジヤケツト６５内
に希溶液又は一部冷媒蒸気とともに流れている希
溶液と、蒸発器６及び冷媒流路４８内の冷媒蒸気
とが熱交換し、希溶液はさらに冷却されて臭化リ
チウム濃度がさらに薄い溶液になり、溶液ポンプ
１０に吸引される。 The second absorber 62 consists of a jacket 65 located outside the evaporator shell 27 and the refrigerant flow path 48. In the second absorber 62, heat is exchanged between the dilute solution or a portion of the dilute solution flowing together with the refrigerant vapor in the jacket 65 and the refrigerant vapor in the evaporator 6 and the refrigerant flow path 48, and the dilute solution is further cooled. As a result, the lithium bromide concentration is further reduced to a solution, which is sucked into the solution pump 10.
さらに、第３図により本発明の他の実施例を説
明する。ここでも、第１図、第２図の実施例との
相違する部分のみ述べる。 Further, another embodiment of the present invention will be explained with reference to FIG. Here, too, only the parts that are different from the embodiments shown in FIGS. 1 and 2 will be described.
第二吸収器６２は、蒸発器６内に設置され、伝
熱管６６とフイン６７とから構成されている。第
二吸収器６２では、伝熱管６６内の希溶液又は一
部冷媒蒸気とともに流れている希溶液と、蒸発器
６内の冷媒蒸気とが熱交換し、希溶液はさらに冷
却されて臭化リチウム濃度がさらに薄い溶液にな
り、溶液ポンプ１０に吸引される。 The second absorber 62 is installed within the evaporator 6 and includes a heat transfer tube 66 and fins 67. In the second absorber 62, the dilute solution in the heat transfer tube 66 or the dilute solution partially flowing together with the refrigerant vapor and the refrigerant vapor in the evaporator 6 exchange heat, and the dilute solution is further cooled and lithium bromide. The solution becomes even more dilute and is sucked into the solution pump 10.
次に、第４図で、第１，２，３図のＡ−Ａ断面
について説明する。 Next, referring to FIG. 4, the AA cross section in FIGS. 1, 2, and 3 will be explained.
垂直管２８の管外にはフイン２９を複数枚星状
に設置されている。このフイン２９は垂直管２８
の軸に平行に伸びている。この場合、軸に対して
傾斜させてもよい。フイン２９の先端よりわずか
に離れてダクト３２が、全垂直管を囲んである。
一方、垂直管２８及びフイン２９などで囲まれた
風路３４を、冷却空気が、垂直管２８内を流れる
溶液及び冷媒蒸気と対向流に、流れ吸収器６を冷
却する。 A plurality of fins 29 are installed outside the vertical tube 28 in a star shape. This fin 29 is the vertical pipe 28
extends parallel to the axis of In this case, it may be inclined with respect to the axis. A duct 32, slightly away from the tip of the fin 29, surrounds the entire vertical tube.
On the other hand, the cooling air cools the flow absorber 6 through the air passage 34 surrounded by the vertical pipe 28 and the fins 29 in a counterflow to the solution and refrigerant vapor flowing inside the vertical pipe 28 .
このように、風路３４に囲いを設けたので、冷
却空気と垂直管２８及びフイン２９との接触がよ
くなり、吸収器６の熱効率が向上して空冷吸収器
が実現する。 In this way, since the air passage 34 is surrounded, the contact between the cooling air and the vertical pipe 28 and the fins 29 is improved, and the thermal efficiency of the absorber 6 is improved, thereby realizing an air-cooled absorber.
本発明によれば吸収器を出た希溶液又は冷媒蒸
気が混在する希溶液を蒸発器で蒸発した冷媒蒸気
で冷却するようにしたので、冷水機を小形化でき
る。
According to the present invention, the dilute solution exiting the absorber or the dilute solution containing refrigerant vapor is cooled by the refrigerant vapor evaporated in the evaporator, so that the water cooler can be made smaller.
第１図は本発明の実施例の系統図、第２図は本
発明の他の実施例の系統図、第３図は他の実施例
の系統図、第４図は第３図におけるＡ−Ａ断面図
である。
１……吸収式冷温水機本体、２……高温再生
器、３……低温再生器、４……凝縮器、５……蒸
発器、６……吸収器、７……溶液熱交換器、９…
…バーナ、１０……溶液ポンプ、１２……冷媒ポ
ンプ、１３……冷媒ライン、１４……加熱管、１
５，１６，１７……冷媒ライン、１８……フイ
ン、１９，２０……フアン、２１……冷媒ライ
ン、２２……冷水管、２３……散布器、２４……
冷媒だめ、２５，２６……冷媒ライン、２７……
蒸発器シエル、２８……垂直管、２９……フイ
ン、３０……散布器、３１……濃溶液ライン、３
２……ダクト、３３……吸気口、３４……風路、
３５……スリツト、３６，３８，３９……希溶液
ライン、４０，４２……濃溶液ライン、４８……
冷媒流路、４９……吹出口、６２……第二吸収
器、６３……伝熱管、６４……フイン、６５……
ジヤケツト、６６……伝熱管、６７……フイン。
FIG. 1 is a system diagram of an embodiment of the present invention, FIG. 2 is a system diagram of another embodiment of the invention, FIG. 3 is a system diagram of another embodiment, and FIG. It is an A sectional view. 1... absorption type water chiller/heater body, 2... high temperature regenerator, 3... low temperature regenerator, 4... condenser, 5... evaporator, 6... absorber, 7... solution heat exchanger, 9...
... Burner, 10 ... Solution pump, 12 ... Refrigerant pump, 13 ... Refrigerant line, 14 ... Heating tube, 1
5, 16, 17... Refrigerant line, 18... Fan, 19, 20... Fan, 21... Refrigerant line, 22... Cold water pipe, 23... Spreader, 24...
Refrigerant reservoir, 25, 26... Refrigerant line, 27...
Evaporator shell, 28...Vertical pipe, 29...Fin, 30...Scatterer, 31...Concentrated solution line, 3
2...Duct, 33...Intake port, 34...Air path,
35...Slit, 36,38,39...Dilute solution line, 40,42...Concentrated solution line, 48...
Refrigerant flow path, 49...Blowout port, 62...Second absorber, 63...Heat transfer tube, 64...Fin, 65...
Jacket, 66...heat exchanger tube, 67...fin.
Claims (1)
発器、空冷の吸収器よりなる吸収式冷水機におい
て、前記吸収器を出た希溶液又は冷媒蒸気が混在
する希溶液と前記蒸発器で蒸発した冷媒蒸気とを
熱交換する手段を備えたことを特徴とする空冷吸
収式冷水機。 ２ 特許請求の範囲第１項の吸収式冷水機におい
て、熱交換手段として熱交換器を蒸発器から吸収
器への冷媒蒸気通路内に設置したことを特徴とす
る空冷吸収式冷水機。 ３ 特許請求の範囲第２項の吸収式冷水機におい
て、熱交換手段として熱交換機を蒸発器内に設置
したことを特徴とする吸収式冷水機。 ４ 特許請求の範囲第１項の吸収式冷水機におい
て、熱交換手段として熱交換器を蒸発器の外側に
ジヤケツトとして設置したことを特徴とする空気
吸収式冷水機。 ５ 特許請求の範囲第１項の吸収式冷水機におい
て、吸収器を流れる溶液及び冷媒蒸気と、冷却空
気とを対向流で流したことを特徴とする空冷吸収
式冷水機。 ６ 特許請求の範囲第５項の吸収式冷水機におい
て、吸収器をフイン付管とし、管内に溶液及び冷
媒蒸気を、管外のフイン部に冷却空気を流したこ
とを特徴とする吸収式冷水機。 ７ 特許請求の範囲第１項の吸収式冷水機におい
て、蒸発器の上部に冷媒蒸気通路を設け、該通路
の上部の横から吸収器に連結したことを特徴とす
る空冷吸収式冷水機。[Scope of Claims] 1. In an absorption water chiller comprising a high-temperature regenerator, a low-temperature regenerator, an air-cooled condenser, an evaporator, and an air-cooled absorber, a dilute solution or refrigerant vapor mixed with the dilute solution or refrigerant vapor exiting the absorber is used. An air-cooled absorption water chiller characterized by comprising means for exchanging heat between a solution and refrigerant vapor evaporated in the evaporator. 2. An air-cooled absorption water chiller according to claim 1, characterized in that a heat exchanger is installed as a heat exchanger in the refrigerant vapor passage from the evaporator to the absorber. 3. An absorption type water chiller according to claim 2, characterized in that a heat exchanger is installed within the evaporator as a heat exchange means. 4. An air absorption water chiller according to claim 1, characterized in that a heat exchanger is installed as a jacket on the outside of the evaporator as a heat exchange means. 5. An air-cooled absorption water chiller according to claim 1, characterized in that the solution and refrigerant vapor flowing through the absorber and the cooling air flow in countercurrents. 6. An absorption type chilled water machine according to claim 5, characterized in that the absorber is a finned tube, and a solution and refrigerant vapor are flowed inside the tube, and cooling air is flowed through the fins outside the tube. Machine. 7. The air-cooled absorption water chiller according to claim 1, characterized in that a refrigerant vapor passage is provided above the evaporator, and the passage is connected from the side of the upper part to the absorber.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59125107A JPS616555A (en) | 1984-06-20 | 1984-06-20 | Air-cooling absorption type water chiller |
| KR1019850004313A KR890004393B1 (en) | 1984-06-20 | 1985-06-18 | Air-cooled absorption chiller |
| US06/746,666 US4563882A (en) | 1984-06-20 | 1985-06-20 | Air cooling type absorption cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59125107A JPS616555A (en) | 1984-06-20 | 1984-06-20 | Air-cooling absorption type water chiller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS616555A JPS616555A (en) | 1986-01-13 |
| JPH0473058B2 true JPH0473058B2 (en) | 1992-11-19 |
Family
ID=14902018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59125107A Granted JPS616555A (en) | 1984-06-20 | 1984-06-20 | Air-cooling absorption type water chiller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS616555A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4903743B2 (en) * | 2008-04-03 | 2012-03-28 | 日立アプライアンス株式会社 | Absorption refrigerator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5036901A (en) * | 1973-08-08 | 1975-04-07 | ||
| JPS58208559A (en) * | 1982-05-27 | 1983-12-05 | 三洋電機株式会社 | Air cooling type absorption refrigerator |
| JPS60135584U (en) * | 1984-02-22 | 1985-09-09 | ダイキン工業株式会社 | Absorption solution cycle system absorber heat exchanger |
-
1984
- 1984-06-20 JP JP59125107A patent/JPS616555A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS616555A (en) | 1986-01-13 |
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