JPH0718616B2 - Direct-fired generator - Google Patents
Direct-fired generatorInfo
- Publication number
- JPH0718616B2 JPH0718616B2 JP62095572A JP9557287A JPH0718616B2 JP H0718616 B2 JPH0718616 B2 JP H0718616B2 JP 62095572 A JP62095572 A JP 62095572A JP 9557287 A JP9557287 A JP 9557287A JP H0718616 B2 JPH0718616 B2 JP H0718616B2
- Authority
- JP
- Japan
- Prior art keywords
- solution
- generator
- flue
- concentration
- absorbing
- 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
Links
- 239000000243 solution Substances 0.000 description 45
- 239000007788 liquid Substances 0.000 description 33
- 238000010521 absorption reaction Methods 0.000 description 20
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 18
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 239000013078 crystal Substances 0.000 description 7
- 239000000567 combustion gas Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- NMHMDUCCVHOJQI-UHFFFAOYSA-N lithium molybdate Chemical compound [Li+].[Li+].[O-][Mo]([O-])(=O)=O NMHMDUCCVHOJQI-UHFFFAOYSA-N 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- JQVALDCWTQRVQE-UHFFFAOYSA-N dilithium;dioxido(dioxo)chromium Chemical compound [Li+].[Li+].[O-][Cr]([O-])(=O)=O JQVALDCWTQRVQE-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- IPLONMMJNGTUAI-UHFFFAOYSA-M lithium;bromide;hydrate Chemical compound [Li+].O.[Br-] IPLONMMJNGTUAI-UHFFFAOYSA-M 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Landscapes
- Sorption Type Refrigeration Machines (AREA)
- Inorganic Insulating Materials (AREA)
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は直焚発生器に係、特に吸収冷凍機に使用される
直焚発生器（以下、発生器という）に関する （ロ）従来の技術 臭化リチウム−水系の吸収冷凍機に使用される発生器の
従来の技術として、例えば実公昭45−15729号公報にみ
られるように、吸収液の出入する角型容器の両端部にお
いて相互に連通する複数本の平行な矩形状中空分路〔吸
収液通路〕を形成し、かつ、これら分路間に形成された
加熱筒〔炉筒および煙道〕内に加熱器〔バーナー〕より
の炎と燃焼ガスを下から上へ送る一方で分路内の吸収液
をその蒸気の気泡と共に後方から前方の吸収液出口へほ
ぼ水平に流すものが知られている。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a direct-fired generator, and more particularly to a direct-fired generator (hereinafter referred to as a generator) used in an absorption refrigerator. As a conventional technique of a generator used in a lithium bromide-water absorption refrigerator, for example, as seen in Japanese Utility Model Publication No. 45-15729, the two sides of the rectangular container into and out of which the absorbing liquid enters and exits each other. Flames from a heater (burner) are formed in a heating cylinder (furnace cylinder and flue) that forms a plurality of parallel rectangular hollow shunts (absorption liquid passage) that communicate with each other. It is known that the combustion gas is sent from the bottom to the top while the absorption liquid in the shunt is caused to flow almost horizontally from the rear to the front absorption liquid outlet together with the bubbles of the vapor.
また、分路〔吸収液通路あるいは溶液管群〕内の吸収液
をほぼ水平方向に流す発生器は、例えば実公昭55−4824
4号公報や実公昭57−54531号公報などにも開示されてい
る。Further, a generator for flowing the absorbing liquid in the shunt (absorption liquid passage or solution pipe group) in a substantially horizontal direction is disclosed in, for example, Jikho Sho 55-4824.
It is also disclosed in Japanese Patent Publication No. 4 and Japanese Utility Model Publication No. 57-54531.
（ハ）発明が解決しようとする問題点 分路〔吸収液通路あるいは溶液管群〕内の吸収液を水平
方向に流す従来の発生器においては、その分路内の上部
を軽い吸収液すなわち臭化リチウム濃度の低い吸収液が
流れやすくなる一方で重い吸収液すなわち臭化リチウム
濃度の高い吸収液が流れやすくなるため、分路内での吸
収液の濃度分布が不均一になりやすい。このことは、発
生器の構造部材の防錆剤として吸収液に充填するモリブ
デン酸リチウムやクロム酸リチウムなどのインヒビター
の濃度分布においても、同様である。そのため、従来の
発生器では、その加熱の停止後に多数の分路内において
その下部に臭化リチウムの晶析を生じやすい問題点があ
り、また、濃度差によって生じる微弱電流の作用で発生
器の構造部材の腐食を早める問題点があった。(C) Problems to be solved by the invention In a conventional generator in which the absorption liquid in the shunt (absorption liquid passage or solution pipe group) is caused to flow in the horizontal direction, a light absorption liquid, that is, an odor, is generated in the upper part of the shunt. The absorption liquid having a low concentration of lithium bromide easily flows, while the absorption liquid having a high concentration of lithium bromide, that is, the absorption liquid having a high concentration of lithium bromide, easily flows, so that the concentration distribution of the absorption liquid in the shunt tends to be uneven. This also applies to the concentration distribution of inhibitors such as lithium molybdate and lithium chromate that are filled in the absorbing solution as rust preventives for the structural members of the generator. Therefore, in the conventional generator, there is a problem that after the heating is stopped, crystallization of lithium bromide is likely to occur in the lower part in a large number of shunts, and the action of the weak current caused by the difference in concentration causes There is a problem of accelerating the corrosion of structural members.
本発明は、これらの問題点に鑑み、吸収液の結晶の軽減
と構造部材の腐食の緩和との可能な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 generator capable of reducing crystals of the absorbing liquid and reducing corrosion of structural members.
（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、発生器
の煙道を炉の後方と連通させて炉筒の上方に形成し、か
つ、煙道を囲む溶液貯留部としての溶液流通部に連通す
る溶液管群〔分路〕を煙道内に垂直に備える構成とした
ものである。(D) Means for Solving the Problems As a means for solving the above problems, the present invention forms a flue of a generator in the upper part of a furnace by communicating with the rear of the furnace, and a flue. The configuration is such that a solution pipe group [shunt] that communicates with a solution flow portion as a solution storage portion that surrounds the is vertically provided in the flue.
（ホ）作用 本発明の発生器においては、その加熱時、溶液管群内の
吸収液は蒸気の気泡と共に下から上へ移動しつつ溶液流
通部内を対流して攪拌されるため、これら管群内での吸
収液濃度の均一化の促進作用が発揮される。この作用に
より、溶液管群での吸収液濃度〔臭化リチウム濃度、イ
ンヒビター濃度〕の偏りが軽減されて微弱電流の発生も
抑制されるので、発生器の構造部材の腐食が緩和され
る。(E) Action In the generator of the present invention, when heated, the absorbing liquid in the solution tube group is convected and agitated in the solution flow section while moving from the bottom to the top together with the bubbles of vapor, so that these tube groups are agitated. The effect of promoting the homogenization of the concentration of the absorbing solution inside is exhibited. Due to this action, the deviation of the concentration of the absorbing solution [the concentration of lithium bromide, the concentration of the inhibitor] in the solution tube group is reduced and the generation of the weak current is suppressed, so that the corrosion of the structural members of the generator is reduced.
かつまた、溶液管群の配備されている煙道が炉の上方に
配備されていて溶液貯留部の上方に溶液管群が位置する
ことになるので、発生器の加熱休止中に、重い吸収液す
なわち臭化リチウム濃度の高い吸収液が溶液管群内に滞
留することも殆んどない。このため、溶液管群内で吸収
液の結晶を生じることも殆んどない。Also, since the flue where the solution tube group is installed is located above the furnace and the solution tube group is located above the solution storage part, the heavy absorption liquid is not supplied during the heating suspension of the generator. That is, the absorbing solution having a high concentration of lithium bromide hardly stays in the solution tube group. Therefore, crystals of the absorbing liquid are hardly generated in the solution tube group.
（ヘ）実施例 第１図は本発明による吸収冷凍機用発生器の一実施例を
示した要部切欠斜視図であり、第２図は第１図に示した
発生器の側面から見た横断面図である。また、第３図は
第２図に示した発生器のＸ−Ｘ矢視の縦断面図であり、
第４図は第２図に示した発生器のＹ−Ｙ矢視の断面図で
ある。なお、これらの図において、同一の構成要素には
同じ符号を付している。(F) Embodiment FIG. 1 is a cutaway perspective view showing an embodiment of a generator for an absorption refrigerator according to the present invention, and FIG. 2 is a side view of the generator shown in FIG. FIG. Further, FIG. 3 is a vertical cross-sectional view of the generator shown in FIG.
FIG. 4 is a sectional view of the generator shown in FIG. In addition, in these drawings, the same components are denoted by the same reference numerals.
第１図において、（１）は発生器の器胴であり、この器
胴内には炉（２）が形成され、この炉に臨ませてバーナ
ー（Ｂ）が器胴（１）に装備されている。（３）は炉
（２）の後方と連通し、かつ、その上方に形成されてい
る煙道で、この煙道には溶液管（４），（４）…群が垂
直に配備されている。（５）は煙道（３）と連通する煙
室であり、この煙室には煙突（６）が備えてある。In FIG. 1, (1) is a barrel of a generator, a furnace (2) is formed in the barrel, and a burner (B) is installed in the barrel (1) facing the furnace. ing. (3) is a flue that communicates with the rear of the furnace (2) and is formed above it. Solution pipes (4), (4) ... Group are vertically arranged in this flue. . (5) is a smoke chamber communicating with the flue (3), and the smoke chamber is provided with a chimney (6).
（７）は吸収液の導入口であり、（８）は吸収液の流出
口である。また、（９）は蒸気の流出口である。そし
て、器胴（１）内壁と炉（２）外壁および煙道（３）外
壁ならびに溶液管（４）内壁とで囲まれたスペースには
吸収液〔臭化リチウム水溶液〕の液相部とその蒸気の気
相部とが形成されている。(7) is an inlet for the absorbent, and (8) is an outlet for the absorbent. Further, (9) is a steam outlet. Then, in the space surrounded by the inner wall of the vessel (1), the outer wall of the furnace (2), the outer wall of the flue (3) and the inner wall of the solution tube (4), the liquid phase part of the absorbing liquid [lithium bromide aqueous solution] and its A vapor phase portion of steam is formed.
なお、（10），（10）は器胴（１）載置用の架台であ
り、（Ｒ）は器胴（１）上部に形成した蒸気室である。In addition, (10) and (10) are mounts for mounting the body barrel (1), and (R) is a steam chamber formed on the upper part of the body barrel (1).
また、第２図ないし第４図において、（11），（12），
（13），（14），（15），（16），（17）は、それぞ
れ、上記液相部としての溶液流通部である。そして、溶
液管（４），（４）…内は前記溶液流通部（16），（1
7）と連通していて吸収液の通路（18），（18）…を形
成し、かつ、煙道（３）には燃焼ガスの通路（19），
（19）…および（20），（20）…が形成されている。2 to 4, (11), (12),
(13), (14), (15), (16), and (17) are solution flow sections as the liquid phase section, respectively. The inside of the solution pipes (4), (4) ...
7) to form passages (18), (18) for absorbing liquid, and for the flue (3), passages (19) for combustion gas,
(19) ... and (20), (20) ... are formed.
なお、第２図に示した（０）はバーナー（Ｂ）の取付け
口であり、第２図および第３図に示した（P1），（P2）
は、それぞれ、蒸気流出用の管、吸収液導入用の管であ
る。また、第２図および第４図に示した（Ｆ）は煙室
（５）の蓋で、この蓋は取り外しの可能なものである。Incidentally, (0) shown in FIG. 2 is a mounting port of the burner (B), and (P 1 ) and (P 2 ) shown in FIGS. 2 and 3 are shown.
Are pipes for vapor outflow and pipes for introducing absorption liquid, respectively. Further, (F) shown in FIGS. 2 and 4 is a lid of the smoke chamber (5), and this lid is removable.
上述のような構成の発生器（以下、本発生器という）に
おいては、その加熱時、煙道（３）を流れる燃焼ガスの
熱により、溶液管（４），（４）…すなわち通路（1
8），（18）…内で吸収液〔臭化リチウム水溶液〕が沸
騰して蒸気が発生する。また、溶液流通部（16）におい
ても、バーナー（Ｂ）の火炎および燃焼ガスの熱で吸収
液が激しく沸騰して蒸気が発生する。そして、発生した
蒸気の気泡と共に吸収液は通路（18），（18）…内の下
部から上部へ移動し、これら通路と溶液流通部（16），
（17）とで形成された溶液貯留部内を吸収液は対流しつ
つ攪拌される。その結果、上記溶液貯留部内における吸
収液の臭化リチウム濃度の均一化が促進される。また、
このことは防錆剤として吸収液に充填されているモリブ
デン酸リチウムの濃度においても同様である。このた
め、上記溶液貯留部内における濃度の偏りが軽減されて
この偏りによるイオンの移動、換言すれば、微弱電流の
発生が抑制され、微弱電流の作用による溶液管（４）な
どの構造部材の腐食が緩和される。特に、溶液管（４）
の開口周縁と煙道（３）外壁との溶接部が腐食すると応
力腐食割れを生じやすいので、この溶接部の腐食が緩和
されることによって本発生器の寿命が大幅に延びる。In the generator configured as described above (hereinafter referred to as the present generator), the solution pipes (4), (4), that is, the passage (1) are heated by the heat of the combustion gas flowing through the flue (3).
The absorbing liquid [lithium bromide aqueous solution] boils inside 8), (18), and vapor is generated. Also in the solution flow section (16), the absorbing liquid vigorously boils due to the flame of the burner (B) and the heat of the combustion gas to generate steam. Then, the absorption liquid moves from the lower part to the upper part in the passages (18), (18) ... With the bubbles of the generated vapor, and these passages and the solution circulation portion (16),
(17) The absorption liquid is agitated while convection in the solution storage portion formed by (1) and (2). As a result, the homogenization of the lithium bromide concentration of the absorbing liquid in the solution storage section is promoted. Also,
This also applies to the concentration of lithium molybdate filled in the absorbing solution as a rust preventive. Therefore, the bias of the concentration in the solution storage portion is reduced, the movement of ions due to the bias is suppressed, that is, the generation of the weak current is suppressed, and the corrosion of the structural members such as the solution pipe (4) due to the action of the weak current is suppressed. Is alleviated. In particular, solution tubes (4)
Corrosion of the welded portion between the opening peripheral edge and the outer wall of the flue (3) easily causes stress corrosion cracking. Therefore, the corrosion of this welded portion is mitigated, and the life of the generator is greatly extended.
また、本発生器の加熱時、溶液流通部（11），（12），
（13），（14），（15），（17）においても、上述の溶
液貯留部と同様に、吸収液は対流しつつ攪拌されるの
で、その濃度はほぼ均一になる。Also, when the generator is heated, the solution flow sections (11), (12),
Also in (13), (14), (15), and (17), as in the case of the solution storage section described above, the absorbing solution is agitated while convection, so that its concentration becomes substantially uniform.
そして、本発生器においては、その加熱時、吸収液は攪
拌されつつ円滑に流動するので、その停滞による局部過
熱や局部濃縮が防止され、吸収液の結晶も防止される。In this generator, during heating, the absorbing liquid smoothly flows while being agitated, so that local overheating and local concentration due to the stagnation are prevented, and crystallization of the absorbing liquid is also prevented.
また、通路（18），（18）…すなわち溶液管（４），
（４）…内の吸収液の濃度は本発生器の加熱時にほぼ均
一化されており、かつ、溶液管（４），（４）…内の吸
収液は器胴（１）内の液相部の上部に位置するので、本
発生器の加熱休止中に溶液管（４），（４）…で吸収液
の結晶を生じる確率は小さい。このため、本発生器の再
加熱時における吸収液の濃縮に著しい支障を来すおそれ
も少ない。尤も、液相部の最下部に位置する溶液流通部
（15）においては、本発生器の加熱休止中に冷えて重く
なった吸収液すなわち上層部よりやゝ濃度の高い吸収液
が存在しやすく、その結晶の確率が高いものの、この結
晶は加熱再開時のバーナー（Ｂ）の高温の火炎の熱で溶
解されやすいため、溶液管（４），（４）…内での加熱
休止中の結晶にくらべ、加熱再開時の支障は小さい。Further, the passages (18), (18), that is, the solution pipes (4),
The concentration of the absorbing liquid in (4) ... Is almost uniform when the generator is heated, and the absorbing liquid in the solution tubes (4), (4) ... is the liquid phase in the body (1). Since it is located at the upper part of the section, the probability that crystal of the absorbing solution will be generated in the solution pipes (4), (4), etc. during the heating suspension of the generator is small. Therefore, it is unlikely that the concentration of the absorbing solution will be significantly hindered when the generator is reheated. However, in the solution flow section (15) located at the bottom of the liquid phase part, the absorption liquid that became cold and heavy during the rest of heating of the generator, that is, the absorption liquid with a slightly higher concentration than the upper layer, is likely to exist. Although the probability of the crystal is high, this crystal is easily melted by the heat of the high-temperature flame of the burner (B) when the heating is restarted, so the crystal in the solution tube (4), (4) ... Compared to the above, there is less trouble when resuming heating.
第５図は本発明による発生器の他の実施例の断面図であ
る。第５図において、第１図ないし第４図に示した構造
要素と同じものには同一の符号を付している。第５図に
おいて、（40），（40）…は円筒形の溶液管で、これら
は煙道（３）内に千鳥状に配列されている。なお、
（FH）は把手（Ｈ）有する煙室（５）用蓋である。FIG. 5 is a cross-sectional view of another embodiment of the generator according to the present invention. In FIG. 5, the same components as those shown in FIGS. 1 to 4 are designated by the same reference numerals. In FIG. 5, (40), (40) ... Are cylindrical solution tubes, which are arranged in a staggered manner in the flue (3). In addition,
(F H ) is a lid for the smoke chamber (5) having a handle (H).
（ト）発明の効果 以上のとおり、本発明は、発生器の溶液管群およびこれ
らと連通する溶液流通部内の吸収液濃度の均一化の促進
効果をもたらし、これにより、濃度の偏りに伴う微弱電
流の発生を抑えて発生器の構造部材の腐食を緩和する効
果と吸収液の結晶を軽減する効果とをもたらし、耐久性
のある発生器を提供し得るものとして実用的価値の高い
ものである。(G) Effect of the Invention As described above, the present invention brings about an effect of promoting the homogenization of the concentration of the absorbing liquid in the solution tube group of the generator and the solution flow section communicating with these, and thereby the weakness due to the bias of the concentration. It has a high practical value as a material that can provide a durable generator by suppressing the generation of an electric current and mitigating the corrosion of the structural members of the generator and the effect of reducing the crystals of the absorbing liquid. .
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
例を示した要部切欠斜視図、第２図は第１図に示した発
生器を側面から見た横断面図、第３図は第２図に示した
発生器のＸ−Ｘ矢視の縦断面図、第４図は第２図に示し
た発生器のＹ−Ｙ矢視の断面図であり、第５図は本発明
による発生器の他の実施例の断面図である。 （１）……器胴、（２）……炉、（３）……煙道、
（４）……溶液管、（Ｒ）……蒸気室、（11），（1
2），（13），（14），（15），（16），（17）……溶
液流通部。FIG. 1 is a cutaway perspective view of an essential part showing an embodiment of a direct-fired generator for an absorption refrigerator according to the present invention, and FIG. 2 is a lateral cross-sectional view of the generator shown in FIG. FIG. 3 is a vertical sectional view of the generator shown in FIG. 2 as seen from the arrow XX, FIG. 4 is a sectional view of the generator shown in FIG. 2 as seen from the arrow YY, and FIG. FIG. 6 is a cross-sectional view of another embodiment of a generator according to the present invention. (1) …… Body, (2) …… Furnace, (3) …… Flue,
(4) …… Solution tube, (R) …… Steam chamber, (11), (1
2), (13), (14), (15), (16), (17) ... Solution flow section.
Claims (1)
この溶液流通部と連通する溶液管群および蒸気流通部よ
り成る直焚発生器において、その煙道が炉の後方と連通
して炉の上方に形成され、かつ、煙道を囲繞した溶液流
通部と連通する溶液管群が煙道内に垂直に配備されてい
ることを特徴とした直焚発生器。1. A furnace, a flue, a solution flow section surrounding these,
In a direct-fired generator consisting of a solution tube group and a vapor flow section communicating with the solution flow section, a flue is formed above the furnace in communication with the rear of the furnace, and a solution flow section surrounding the flue is provided. A direct-fired generator characterized in that a solution tube group that communicates with is arranged vertically in the flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62095572A JPH0718616B2 (en) | 1987-04-17 | 1987-04-17 | Direct-fired generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62095572A JPH0718616B2 (en) | 1987-04-17 | 1987-04-17 | Direct-fired generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63259362A JPS63259362A (en) | 1988-10-26 |
| JPH0718616B2 true JPH0718616B2 (en) | 1995-03-06 |
Family
ID=14141307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62095572A Expired - Lifetime JPH0718616B2 (en) | 1987-04-17 | 1987-04-17 | Direct-fired generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718616B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH031001A (en) * | 1989-05-26 | 1991-01-07 | Hirakawa Tekkosho:Kk | Generator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5097703A (en) * | 1974-01-08 | 1975-08-04 | ||
| JPS5257401A (en) * | 1975-11-07 | 1977-05-11 | Mitsubishi Heavy Ind Ltd | Water tube type vertical boiler |
-
1987
- 1987-04-17 JP JP62095572A patent/JPH0718616B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63259362A (en) | 1988-10-26 |
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