JPH079324B2 - Direct-fired generator - Google Patents
Direct-fired generatorInfo
- Publication number
- JPH079324B2 JPH079324B2 JP15607687A JP15607687A JPH079324B2 JP H079324 B2 JPH079324 B2 JP H079324B2 JP 15607687 A JP15607687 A JP 15607687A JP 15607687 A JP15607687 A JP 15607687A JP H079324 B2 JPH079324 B2 JP H079324B2
- Authority
- JP
- Japan
- Prior art keywords
- passage
- combustion gas
- solution
- direct
- generator
- 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
Landscapes
- Sorption Type Refrigeration Machines (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
【発明の詳細な説明】 （イ） 産業上の利用分野 本発明は、器内に燃焼ガス用通路を水平に配置し、か
つ、この通路内に溶液管群を垂直に配列した型式の吸収
冷凍機用（吸収ヒートポンプ装置用、吸収冷温水機用）
の直焚発生器の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an absorption refrigeration system of a type in which a combustion gas passage is horizontally arranged in a vessel and a solution pipe group is vertically arranged in the passage. Machine (for absorption heat pump device, absorption chiller / heater)
The present invention relates to an improvement in a direct-fired generator.
（ロ） 従来の技術 上記型式の直焚発生器においては、燃焼ガス用通路の中
央部側に配列されている溶液管内の液と燃焼ガスとの熱
交換が良好である反面、通路の両側内壁近傍および下流
部に配列されている溶液管内の液と燃焼ガスとの熱交換
は悪い傾向にある。その理由として、燃焼ガス用通路の
両側近傍を流れる高温のガスは、通路の両側内壁に沿っ
て移動しやすく、その近傍に配列されている溶液管群内
の液と十分に熱交換せずに高温のまま器外へ排出されて
しまうことが挙げられる。また、下流部での燃焼ガスの
温度は上流部でのそれよりも当然に低くなるため、液に
対する加熱力も弱いことが挙げられる。(B) Conventional technology In the above-mentioned direct-fired generator, the heat exchange between the liquid in the solution pipe arranged on the central side of the combustion gas passage and the combustion gas is good, but the inner walls on both sides of the passage are good. The heat exchange between the liquid in the solution pipes arranged in the vicinity and the downstream portion and the combustion gas tends to be bad. The reason is that the high-temperature gas flowing near both sides of the combustion gas passage tends to move along the inner walls on both sides of the passage and does not sufficiently exchange heat with the liquid in the solution tube group arranged in the vicinity thereof. It can be mentioned that it is discharged outside the container at a high temperature. Further, since the temperature of the combustion gas in the downstream portion is naturally lower than that in the upstream portion, the heating power for the liquid is weak.
そこで、上記型式の直焚発生器の前述のような傾向を小
さくするための従来の技術として、例えば実開昭58-246
49号公報にみられるように、炉筒〔燃焼ガス用通路〕の
両側面内壁にバッフルを設け、このバッフルの上流側の
面を燃焼ガスの下流方向に傾斜させたものがある。Therefore, as a conventional technique for reducing the above-mentioned tendency of the above-mentioned type of the direct-fired generator, for example, in Japanese Utility Model Laid-Open No. 58-246
As can be seen in Japanese Patent Publication No. 49, there is one in which baffles are provided on the inner walls on both side surfaces of a furnace tube [combustion gas passage], and the upstream surface of this baffle is inclined in the downstream direction of the combustion gas.
（ハ） 発明が解決しよとする問題点 上記の従来の直焚発生器においては、炉筒の両側内壁に
沿って高温のままで流れやすい燃焼ガスをバッフルが炉
筒両側内壁近傍の溶液管群へ導いてこれら管群内の液と
ガスとの熱交換の促進機能を果たすものの、バッフル自
体は液とガスとの熱交換機能をもち得ず、かつ、液とガ
スとの熱交換面積までも増大させ得ない上に、バッフル
を設けるためのスペースも必要となるなどの問題点があ
る。また、下流部での液とガスとの熱交換量の増大を十
分に果し得ない問題点もある。(C) Problems to be Solved by the Invention In the above-described conventional direct-fired generator, the baffle causes the solution gas near the inner walls of both sides of the furnace tube to flow combustion gas that easily flows at high temperatures along the inner walls of both sides of the furnace tube. The baffle itself does not have the function of exchanging heat between liquid and gas, and leads to the area of heat exchange between liquid and gas. However, there is a problem that the space for installing the baffle is also required. There is also a problem that the amount of heat exchange between the liquid and the gas in the downstream portion cannot be sufficiently increased.
本発明は、これらの問題点に鑑み、従来のものよりも発
生器全体としての液と燃焼ガスとの交換熱量を増大させ
ることの可能な直焚発生器の提供を目的としたものであ
る。The present invention has been made in view of these problems, and an object thereof is to provide a direct-fired generator capable of increasing the amount of heat exchanged between the liquid and the combustion gas in the generator as a whole as compared with the conventional one.
（ニ） 問題点を解決するための手段 本発明は、上記の問題点を解決する手段として、前述の
型式の直焚発生器における燃焼ガス用通路の両側内壁近
傍および下流部に備えた溶液管群を、例えば管群の配列
間隔を狭めるなどの手段により、燃焼ガス用通路の他の
部分に備えた溶液管群よりも密集させて配列する構成と
したものである。(D) Means for Solving Problems As a means for solving the above problems, the present invention provides a solution pipe provided in the vicinity of both inner walls of a combustion gas passage in a direct-fired generator of the type described above and in a downstream portion. The groups are arranged so as to be closer to each other than the solution tube group provided in the other part of the combustion gas passage by means such as narrowing the arrangement interval of the tube groups.
（ホ） 作用 本発明の直焚発生器においては、その燃焼ガス用通路の
両側内壁近傍および下流部の溶液管群の熱交換面積が燃
焼ガス用通路のその他の部分のそれよりも拡大されるの
で、通路のいずれの部分にもほぼ同じ密度で溶液管群の
配列されている従来のものにくらべ、通路の両側部近傍
と下流部での液とガスとの交換熱量の増大機能を発揮さ
せることができる。かつまた、通路の両側内壁近傍の管
群の配列を密集させることにより、管群自体がバッフル
としての機能も発揮する。このため、通路の両側部近傍
での液とガスとの熱交換の促進効果ももたらされ、発生
器全体としての交換熱量が増大する。(E) Action In the direct-fired generator of the present invention, the heat exchange area of the solution pipe group in the vicinity of both inner walls of the combustion gas passage and in the downstream portion is larger than that of the other portions of the combustion gas passage. Therefore, as compared with the conventional one in which the solution tube groups are arranged at almost the same density in any part of the passage, the function of increasing the amount of heat exchanged between the liquid and the gas in the vicinity of both sides of the passage and in the downstream portion is exerted. be able to. Moreover, the tube group itself also exerts a function as a baffle by densely arranging the tube group in the vicinity of both inner walls of the passage. Therefore, the effect of promoting heat exchange between the liquid and the gas in the vicinity of both sides of the passage is also brought about, and the amount of heat exchanged in the generator as a whole is increased.
（ヘ） 実施例 第１図は本発明による吸収冷凍機用直焚発生器の一実施
例の縦断面図であり、第２図，第３図は、それぞれ、第
１図に示した実施例のＩ−Ｉ線矢視の横断面図、II-II
線矢視の平面断面図である。これらの図において、
（１）は、吸収冷凍機用直焚発生器の器胴であり、この
内壁と外壁とで囲まれた溶液貯留部（２）および蒸気分
離部（３）を有している。（４）は器胴（１）内壁の一
部で形成された炉筒であり、その下流側には燃焼ガス反
転用の煙室（５）が同様に形成されている。（６）は炉
筒（４）の上方に位置するよう器内に水平に配備した燃
焼ガス用通路であり、この上流端は前記煙室（５）と連
通する一方で下流端は排ガス用煙室（７）と連通してい
る。（８）は排ガス用煙室（７）の上壁に接続した煙突
である。(F) Embodiment FIG. 1 is a vertical cross-sectional view of an embodiment of a direct heating generator for an absorption refrigerator according to the present invention, and FIGS. 2 and 3 show the embodiment shown in FIG. 1, respectively. II-II, a cross-sectional view taken along the line II of FIG.
It is a plane sectional view of a line arrow. In these figures,
(1) is a body of a direct-fired generator for an absorption refrigerator, which has a solution storage section (2) and a vapor separation section (3) surrounded by an inner wall and an outer wall. Reference numeral (4) is a furnace tube formed by a part of the inner wall of the case body (1), and a smoke chamber (5) for reversing combustion gas is similarly formed on the downstream side thereof. Reference numeral (6) is a combustion gas passage horizontally arranged in the vessel so as to be located above the furnace tube (4). The upstream end of the passage is connected to the smoke chamber (5) while the downstream end is exhaust gas smoke. It communicates with the room (7). (8) is a chimney connected to the upper wall of the exhaust gas smoke chamber (7).
（9a），（9b）…は燃焼ガス用通路（６）内に垂直に配
列した溶液管である。そして、通路（６）の両側内壁近
傍および下流部に配列されている溶液管（9a），（9a）
…群の配列ピッチは通路（６）の上流部や中央部などに
配列されている溶液管（9b），（9b）…群のそれよりも
狭く構成してある。(9a), (9b) ... are solution tubes vertically arranged in the combustion gas passage (6). The solution pipes (9a), (9a) arranged in the vicinity of both inner walls of the passage (6) and in the downstream portion.
The arrangement pitch of the group is configured to be narrower than that of the group of solution tubes (9b), (9b) arranged in the upstream portion or the central portion of the passage (6).
なお、（10）は吸収冷凍機の吸収器〔図示せず〕側から
送られてくる吸収液の導入管、（11）は吸収冷凍機の凝
縮器〔図示せず〕へ冷媒蒸気を導く蒸気導出管、（12）
は蒸気ヘッダー、（13）はガンタイプバーナー〔図示せ
ず〕の挿入口、（14）は器胴（１）の架台である。なお
また、図示していないが、発生器にはここで加熱濃縮さ
れた吸収液の導出管が備えられていることは勿論であ
る。In addition, (10) is a pipe for introducing the absorption liquid sent from the absorber (not shown) side of the absorption refrigerator, and (11) is steam for introducing the refrigerant vapor to the condenser (not shown) of the absorption refrigerator. Outlet pipe, (12)
Is a steam header, (13) is an insertion port of a gun type burner (not shown), and (14) is a mount for the body (1). Although not shown in the figure, the generator is of course provided with a lead-out pipe for the absorption liquid heated and concentrated here.
このように構成された吸収冷凍機用直焚発生器（以下、
本発生器という）において、炉筒（４）から煙室（５）
経由で反転して燃焼ガス用通路（６）に流入した燃焼ガ
スはこの通路の上流側から下流側へ移動する途中で、そ
の一部が通路（６）の両側内壁に沿って流れるものの、
大部分は通路（６）に配備されている溶液管（9a），
（9b）内の吸収液と熱交換しつつ流れる。そして、通路
（６）の両側近傍の溶液管（9a），（9a）…の配列ピッ
チは溶液管（9b），（9b）…のそれよりも小さく構成さ
れていることにより、溶液管（9a），（9a）…群間を通
過する燃焼ガスの乱流の度合が溶液管（9b），（9b）…
群間を通過する燃焼ガスのそれよりも高められるので、
通路（６）のいずれの部分にも溶液管（9b），（9b）…
の配列ピッチと同じ間隔で溶液管を配列している従来の
ものにくらべ、本発生器においては、通路（６）の両側
近傍でのガスと吸収液との熱交換が促進され、また、通
路（６）の両側内壁に沿って高温のまま流れるガスの量
も減る。しかも、本発生器においては、上記した従来の
発生器にくらべ、通路（６）の両側近傍および下流部で
の燃焼ガスと吸収液との熱交換面積も拡大されるので、
熱交換量も増える。A direct-fired generator for an absorption refrigerator configured as described above (hereinafter,
In this generator), from the tube (4) to the smoke chamber (5)
Although the combustion gas that has been inverted and flowed into the combustion gas passage (6) via the passage flows along the inner walls on both sides of the passage (6) while moving from the upstream side to the downstream side of this passage,
Mostly the solution pipe (9a), which is located in the passage (6),
It flows while exchanging heat with the absorbing liquid in (9b). The arrangement pitch of the solution pipes (9a), (9a) ... Near both sides of the passage (6) is smaller than that of the solution pipes (9b), (9b). ), (9a) ... The degree of turbulent flow of the combustion gas passing between the groups depends on the solution tubes (9b), (9b) ...
Since it is higher than that of the combustion gas passing between the groups,
Solution pipes (9b), (9b) in any part of the passage (6) ...
In this generator, the heat exchange between the gas and the absorbing liquid in the vicinity of both sides of the passage (6) is promoted, as compared with the conventional arrangement in which the solution pipes are arranged at the same interval as the arrangement pitch of The amount of gas flowing at high temperature along both inner walls of (6) also decreases. Moreover, in this generator, the heat exchange area between the combustion gas and the absorbing liquid in the vicinity of both sides of the passage (6) and in the downstream portion is also expanded, as compared with the above-described conventional generator,
The amount of heat exchange also increases.
したがって、本発生器によれば、燃焼ガス用通路を水平
に配置してこの通路内に溶液管を垂直に配列した型式の
直焚発生器における燃焼ガス用通路の両側近傍および下
流部でのガスと溶液管内の吸収液との熱交換を向上させ
ることができる。このため、発生器全体の交換熱量を増
大させることができると共に、燃焼ガス用通路の両側内
壁近傍および下流部での交換熱量とその他の部分での交
換熱量とを従来のものよりもバランスさせて吸収液の加
熱濃縮の全体的な不均一さを緩和させることができる。Therefore, according to the present generator, the gas in the vicinity of both sides of the combustion gas passage and in the downstream portion in the direct-fired generator of the type in which the combustion gas passage is arranged horizontally and the solution pipes are vertically arranged in this passage. It is possible to improve heat exchange between the absorbing solution in the solution tube and the absorbing solution. Therefore, it is possible to increase the amount of heat exchanged in the entire generator and to balance the amount of heat exchanged in the vicinity of both inner walls of the combustion gas passage and in the downstream portion with the amount of heat exchanged in other portions as compared with the conventional one. It is possible to mitigate the general non-uniformity of the heat concentration of the absorption liquid.
第４図は本発明による吸収冷凍機用直焚発生器の別の実
施例の平面断面図で、この図において、第３図に示した
構成機器と同様のものには同一の符号を付している。第
４図の実施例では、燃焼ガス用通路（６）の両側内壁近
傍および下流部に配列した溶液管（9c），（9c）…の管
径が溶液管（9b）のそれよりも小さくなっている。この
ように管径を小さくすることによって、溶液管を通路
（６）の両側内壁近傍および下流部により一層密集させ
て配列することが可能となる。FIG. 4 is a plan sectional view of another embodiment of the direct heating generator for an absorption refrigerator according to the present invention, in which the same components as those shown in FIG. 3 are designated by the same reference numerals. ing. In the embodiment of FIG. 4, the diameters of the solution pipes (9c), (9c) ... Arranged near the inner walls on both sides of the combustion gas passage (6) and in the downstream portion are smaller than that of the solution pipe (9b). ing. By making the tube diameter small in this way, it becomes possible to arrange the solution tubes more closely on the inner walls on both sides of the passageway (6) and on the downstream side.
なお、図に示した実施例では通路（６）の両側内壁近傍
の下流側後半部の溶液管群を密集させて配備している
が、これを通路（６）の両側内壁近傍の最上流側から最
下流側までの全部にわたり密集させて配備しても良いこ
とは勿論である。In the embodiment shown in the drawing, the solution tube groups in the downstream half of the inner wall on both sides of the passage (6) are densely arranged, but this is arranged on the most upstream side near both inner walls of the passage (6). It is needless to say that they may be densely arranged over the entire area from the downstream side to the most downstream side.
（ト） 発明の効果 以上のとおり、本発明によれば、器内に燃焼ガス用通路
が水平に配置されてこの通路内に溶液管群が垂直に配備
された型式の直焚発生器において、その燃焼ガス用通路
の下流部および両側内壁近傍に備えた溶液管群の燃焼ガ
スとの熱交換面積を増やすと共に燃焼ガス用通路の両側
内壁近傍の管群内の吸収液と燃焼ガスとの熱交換を促進
させて発生器全体としての交換熱量の増大効果をもたら
し、発生器の小型化も可能となる。そして、燃焼ガス用
通路のいずれの部分にも溶液管を同じ間隔で配列した従
来の直焚発生器にくらべ、燃焼ガス用通路の両側近傍や
下流部での溶液管群内の吸収液に対する燃焼ガスの加熱
量とその他の部分での加熱量とをより一層バランスさせ
る効果がもたらされ、これら管群における吸収液の加熱
濃縮の不均一さをより少なくすることができる。(G) Effects of the Invention As described above, according to the present invention, in the direct-fired generator of the type in which the combustion gas passage is horizontally arranged in the vessel and the solution pipe group is vertically arranged in the passage, The heat exchange area with the combustion gas of the solution tube group provided in the downstream portion of the combustion gas passage and in the vicinity of both inner walls of the combustion gas passage is increased, and the heat of the absorbing liquid and the combustion gas in the pipe group near both inner walls of the combustion gas passage is increased. The exchange is promoted to bring about an effect of increasing the exchange heat amount of the generator as a whole, and the generator can be downsized. And, compared with the conventional direct-fired generator in which solution pipes are arranged at the same intervals in any part of the combustion gas passage, combustion of the absorbing liquid in the solution pipe group near both sides of the combustion gas passage or in the downstream portion The effect of further balancing the heating amount of the gas and the heating amount of the other portion is brought about, and the nonuniformity of the heating and concentration of the absorbing liquid in these tube groups can be further reduced.
第１図は本発明による吸収冷凍機用直焚発生器の一実施
例の縦断面図、第２図，第３図はそれぞれ第１図に示し
た実施例のＩ−Ｉ線矢視の横断面図、II-II線矢視の平
面断面図であり、第４図は本発明による吸収冷凍機用直
焚発生器の他の実施例の平面断面図である。 （１）……器胴、（２）……溶液貯留部、（３）……蒸
気分離部、（４）……炉筒、（５）……煙室、（６）…
…燃焼ガス用通路、（７）……排ガス用煙室、（9a），
（9b）……溶液管。FIG. 1 is a longitudinal sectional view of an embodiment of a direct-fired generator for an absorption refrigerator according to the present invention, and FIGS. 2 and 3 are cross-sectional views taken along the line I--I of the embodiment shown in FIG. 1, respectively. FIG. 4 is a plan view of a plane view taken along the line II-II in FIG. 4, and FIG. 4 is a plan view of another embodiment of the direct heating generator for an absorption refrigerator according to the present invention. (1) ... Body, (2) ... Solution storage part, (3) ... Steam separation part, (4) ... Furnace tube, (5) ... Smoke chamber, (6) ...
… Combustion gas passage, (7) …… Exhaust gas smoke chamber, (9a),
(9b) …… Solution tube.
Claims (1)
かつ、この通路内に溶液管群が垂直に配備されて管内の
吸収液を加熱濃縮する直焚発生器において、その燃焼ガ
ス用通路の両側内壁近傍および下流部に備えた溶液管群
を通路のその他の部分に備えた溶液管群よりも密集させ
て配備したことを特徴とする直焚発生器。1. A combustion gas passage is horizontally arranged in the container,
Further, in the direct-fired generator in which the solution pipe group is vertically arranged in this passage to heat and concentrate the absorption liquid in the pipe, the solution pipe group provided in the vicinity of both inner walls of the combustion gas passage and in the downstream portion of the passage is provided. A direct-fired generator characterized by being arranged more densely than the solution tube group provided in other parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15607687A JPH079324B2 (en) | 1987-06-23 | 1987-06-23 | Direct-fired generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15607687A JPH079324B2 (en) | 1987-06-23 | 1987-06-23 | Direct-fired generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS643472A JPS643472A (en) | 1989-01-09 |
| JPH079324B2 true JPH079324B2 (en) | 1995-02-01 |
Family
ID=15619780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15607687A Expired - Fee Related JPH079324B2 (en) | 1987-06-23 | 1987-06-23 | Direct-fired generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH079324B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3422826B2 (en) * | 1993-11-09 | 2003-06-30 | 理想科学工業株式会社 | Stencil printing machine |
-
1987
- 1987-06-23 JP JP15607687A patent/JPH079324B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS643472A (en) | 1989-01-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |