JPH063330B2 - Absorption chiller / heater generator - Google Patents

Absorption chiller / heater generator

Info

Publication number
JPH063330B2
JPH063330B2 JP22575384A JP22575384A JPH063330B2 JP H063330 B2 JPH063330 B2 JP H063330B2 JP 22575384 A JP22575384 A JP 22575384A JP 22575384 A JP22575384 A JP 22575384A JP H063330 B2 JPH063330 B2 JP H063330B2
Authority
JP
Japan
Prior art keywords
heat transfer
transfer tube
solution
combustion gas
flow
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
Application number
JP22575384A
Other languages
Japanese (ja)
Other versions
JPS61105064A (en
Inventor
章 西口
富久 大内
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP22575384A priority Critical patent/JPH063330B2/en
Publication of JPS61105064A publication Critical patent/JPS61105064A/en
Publication of JPH063330B2 publication Critical patent/JPH063330B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Sorption Type Refrigeration Machines (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は空気調和等に用いられる吸収式冷温水機に係
り、燃焼ガスと溶液の熱交換器に好適な吸収式冷温水機
の発生器に関する。
Description: TECHNICAL FIELD The present invention relates to an absorption chiller-heater used for air conditioning and the like, and relates to a generator of the absorption chiller-heater suitable for a heat exchanger for combustion gas and solution. .

〔従来の技術〕[Conventional technology]

吸収式冷温水機の発生器として、貫流ボイラ形の発生器
は満液式の発生器に比べて溶液保有量が少ないこと、そ
の結果起動特性がよいことなどの長所がある。例えば特
開昭58-150780号公報に示されるように、コイル状に巻
いた加熱管の中央部に下向きに火炎を放出する燃焼器を
配置し熱効率の向上を図っている。
As a generator for an absorption chiller-heater, a once-through boiler type generator has the advantages that it has a smaller amount of solution storage than a full-filling type generator, and as a result has good starting characteristics. For example, as shown in Japanese Patent Laid-Open No. 58-150780, a combustor that emits a downward flame is arranged in the center of a heating tube wound in a coil shape to improve thermal efficiency.

又、実開昭58-196746号公報には、熱交換器本体を板状
部材とこれらの端部間を塞ぐ側板で形成し、内面側に上
下方向に一定間隔で離間したフィンを上方に傾斜して一
体形成するとともに、本体下部に配設したバーナからの
燃焼ガスを上部に配設したファンによって吸引してフィ
ンに吸熱させ、板状部材の外側面に設けた円筒状保持部
内に拡管保持されたパイプ内を流れる冷媒を加熱するよ
うにした熱交換器が開示されている。
Further, in Japanese Utility Model Laid-Open No. Sho 58-196746, the heat exchanger body is formed by a plate member and side plates that close the ends of these members, and fins that are vertically spaced at regular intervals on the inner surface are inclined upward. In addition, the combustion gas from the burner installed in the lower part of the main body is sucked by the fan installed in the upper part and the heat is absorbed by the fins, and the expanded pipe is held in the cylindrical holding part provided on the outer surface of the plate member. There is disclosed a heat exchanger adapted to heat the refrigerant flowing in the formed pipe.

又、特開昭57-87575号公報には、外筒の上部に排気口
を、底部にバッフル板を設け、内部に内筒を内蔵してこ
の内筒の外側にその開口部に連通する空室を形成すると
ともに、内筒の外周壁にはらせん状の銅パイプを取付
け、外筒の外側を冷却筒で包囲して両者間に冷却室を設
け、底部に空気吸入口、頂部に内筒に臨むバーナを有す
る燃焼器を取付け、燃焼器は配管を介して冷却室の上部
に連通した温水ボイラが開示されている。
Further, in Japanese Patent Laid-Open No. 57-87575, an exhaust port is provided in the upper part of the outer cylinder, a baffle plate is provided in the bottom part, an inner cylinder is built in the inner cylinder, and an empty space communicating with the opening is provided outside the inner cylinder. A chamber is formed, a spiral copper pipe is attached to the outer peripheral wall of the inner cylinder, the outside of the outer cylinder is surrounded by a cooling cylinder to provide a cooling chamber between the two, an air intake port at the bottom and an inner cylinder at the top. There is disclosed a hot water boiler in which a combustor having a burner facing the above is attached, and the combustor communicates with an upper part of a cooling chamber through a pipe.

〔発明が解決しようとする課題〕[Problems to be Solved by the Invention]

しかし、特開昭58-150780号公報に記載の従来技術にお
いては加熱管を円形らせん状に巻いてあるために加熱管
中央部の燃焼ガス流路の面積が広くなり、燃焼ガス流速
が遅くなって加熱管への熱伝達効率悪くなること、燃焼
ガスの流路面積に対してそれを囲む伝熱管長さが短いた
めにらせんの段数が多くなり、貫流ボイラの高さが高く
なり、大きさが大きくなることなどの欠点があった。
However, in the conventional technique described in JP-A-58-150780, since the heating pipe is wound in a circular spiral shape, the area of the combustion gas flow passage in the central portion of the heating pipe is widened, and the combustion gas flow velocity becomes slow. The efficiency of heat transfer to the heating tube is poor, and the length of the heat transfer tube that surrounds the flow path of the combustion gas is short, which increases the number of spiral stages, increasing the height of the once-through boiler, and increasing the size. There were some drawbacks such as large size.

また、伝熱管内で沸騰している溶液が円形らせん状の流
路に沿って流れるために遠心力を受けて外側に押しやら
れ、燃焼ガスからの熱が流入する内側で流量が少なくな
りこの部分で局部過熱を起こしやすくなるという欠点が
あった。
Also, since the solution boiling in the heat transfer tube flows along the circular spiral flow path, it is pushed outward due to centrifugal force, and the flow rate decreases at the inside where heat from the combustion gas flows in. However, there is a drawback that local overheating tends to occur.

又、実開昭58-196746号公報に開示の熱交換器は、伝熱
管を比較的長い直線部と曲がり部で形成してはいるが、
伝熱管は外壁の外側面に設けられるものであり、燃焼ガ
スのながれ方向と冷媒の流れ方向は、同一方向であり、
燃焼ガス温度が低下する部分の熱負荷を均一化すること
には配慮されていないものであった。
Further, in the heat exchanger disclosed in Japanese Utility Model Laid-Open No. 58-196746, the heat transfer tube is formed of a relatively long straight line portion and a curved portion,
The heat transfer tube is provided on the outer surface of the outer wall, and the flow direction of the combustion gas and the flow direction of the refrigerant are the same,
No consideration was given to making the heat load uniform in the part where the combustion gas temperature drops.

又、特開昭57-87575号公報に開示の温水ボイラは、燃焼
ガスを上から下、被加熱溶液を下から上に流すように構
成してはいるものの燃焼ガス温度が低下する部分の熱負
荷を均一化することには配慮されていないものであっ
た。
Further, the hot water boiler disclosed in JP-A-57-87575 is configured so that the combustion gas flows from the top to the bottom and the solution to be heated flows from the bottom to the top, but the heat of the portion where the combustion gas temperature decreases No consideration was given to equalizing the load.

本発明の目的は、貫流ボイラ形発生器の小形化を図ると
ともに、伝熱管の局部加熱をなくするとももに熱負荷の
均一化をはかり、小形で熱効率が高く耐久性、信頼性の
高い吸収式冷温水機の再生器を提供することにある。
The object of the present invention is to reduce the size of the once-through boiler type generator, and to even out the local heating of the heat transfer tube to make the heat load uniform, and to achieve a small size with high thermal efficiency, durability, and highly reliable absorption. The purpose is to provide a regenerator for a hot and cold water heater.

〔課題を解決するための手段〕 上記目的を達成するために、本発明の吸収式冷温水機の
再生器は、巻き段数が複数であって内部を溶液が流れる
フィンを有する伝熱管と、該伝熱管を取り囲む外壁と、
該外壁に取り付けられた燃焼器を備え、該燃焼器の燃焼
ガスが前記外壁内を流れるように構成するとともに、前
記燃焼器から遠い位置に前記伝熱管の溶液の流入口が、
近い位置に前記伝熱管の溶液の流出口が設けられている
吸収式冷温水機の発生器において、前記伝熱管を比較的
長い直線部と曲がり部とでら線状に形成して、伝熱管で
囲まれた内側に燃焼ガス通路を形成するとともに、前記
溶液の流入口より溶液の流れる方向で少なくとも巻き段
数が1段下流側に前記燃焼ガスの吹き抜けを防止するた
めのバッフル板を前記伝熱管で囲まれた内側に設け、前
記溶液の流入口側の前記バッフル板前後の伝熱管にフィ
ンを設け、流出口側の伝熱管を裸管としたことを特徴と
するものである。
[Means for Solving the Problems] In order to achieve the above object, the regenerator of the absorption chiller-heater of the present invention has a heat transfer tube having a plurality of winding stages and fins through which a solution flows, An outer wall surrounding the heat transfer tube,
A combustor attached to the outer wall is provided, and combustion gas of the combustor is configured to flow in the outer wall, and a solution inlet of the heat transfer tube is located at a position distant from the combustor.
In a generator of an absorption chiller-heater in which a solution outlet of the heat transfer tube is provided at a close position, the heat transfer tube is formed in a linear shape with a relatively long straight portion and a curved portion, The heat transfer tube has a baffle plate for forming a combustion gas passage on the inner side surrounded by, and for preventing the combustion gas from blowing through at least one winding stage downstream in the solution flowing direction from the solution inlet. It is characterized in that fins are provided on the heat transfer tubes before and after the baffle plate on the inflow side of the solution, and the heat transfer tube on the outflow side is a bare tube.

〔作用〕[Action]

本発明の吸収式冷温水機の再生器は、伝熱管を比較的長
い直線部と曲がり部とからなる細長いら線状に形成し、
これらの伝熱管に囲まれた燃焼ガスの流路を細長い形状
にすることにより、円形らせん状に巻いた伝熱管に比べ
て燃焼ガス流路面積当たりの伝熱管長さを長くできるこ
とから1段当りの伝熱管長さが長くなって全体の高さが
小さくなり小形化を図ることができる。また、燃焼ガス
と溶液を熱交換器としては理想的な対向流として熱交換
効率の向上を図るとともに、伝熱管としてフィンチュー
ブを用い燃焼ガス温度の低くなる下流側において、フィ
ン高さを高く、フィンピッチを小さくし、らせん状伝熱
管の中央部にガスの吹き抜けを防ぐバッフルを設けるこ
とにより、熱負荷分布を均一化し、全体の小形化を図る
ことができる。さらに、らせん状に巻いた伝熱管の直管
部では溶液に遠心力が働かないので、燃焼ガスからの熱
が流入するらせん管内側の伝熱面にも溶液がまわり込み
やすくなり局部過熱を起こさないようにすることができ
る。
In the regenerator of the absorption chiller-heater of the present invention, the heat transfer tube is formed in a long and slender linear shape composed of a relatively long straight portion and a curved portion,
By making the combustion gas flow passage surrounded by these heat transfer pipes elongated, the heat transfer pipe length per combustion gas flow passage area can be made longer than that of the heat transfer pipe wound in a circular spiral shape. The length of the heat transfer tube is increased, the overall height is decreased, and the size can be reduced. Further, the combustion gas and the solution are used as an ideal counterflow for the heat exchanger to improve the heat exchange efficiency, and a fin tube is used as a heat transfer tube to increase the fin height on the downstream side where the combustion gas temperature becomes low, By reducing the fin pitch and providing a baffle for preventing gas blow through at the center of the spiral heat transfer tube, the heat load distribution can be made uniform and the overall size can be reduced. Furthermore, since the centrifugal force does not work on the solution in the straight pipe part of the spirally wound heat transfer tube, the solution easily wraps around the heat transfer surface inside the spiral tube where heat from the combustion gas flows in, causing local overheating. You can avoid it.

〔実施例〕〔Example〕

以下本発明の一実施例を第1図及び第2図により説明す
る。
An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

第1図及び第2図において、1はラインの状火炎を下向
きに放出する燃焼器、2a,2b,2c,2dは燃焼器
1の下部に配置し、長円形のらせん状に巻いた伝熱管
で、2aはベアチューブ、2bはフィン高さが低く密度
が小さいフィンチューブ、2cはフィン高さが高く密度
が小さいフィンチューブ、2dはフィン高さが高く密度
が大きいフィンチューブとなっている。3は長円形らせ
ん状の伝熱管2を取り囲む外壁、4は伝熱管2の内側に
形成された長円柱形状の燃焼室、5は燃焼室の下流側に
設置された燃焼ガスの吹き抜けを防止するためのバッフ
ル、7は入口溶液、8は出口溶液及び発生蒸気、9は下
向きに放出される燃焼ガス、10は排ガスである。
In FIGS. 1 and 2, 1 is a combustor that discharges a line-shaped flame downward, 2a, 2b, 2c, and 2d are arranged in the lower part of the combustor 1, and the heat transfer tubes are wound in an elliptical spiral shape. 2a is a bare tube, 2b is a fin tube having a low fin height and a low density, 2c is a fin tube having a high fin height and a low density, and 2d is a fin tube having a high fin height and a high density. Reference numeral 3 denotes an outer wall surrounding the heat transfer tube 2 having an elliptical spiral shape, 4 a combustion chamber having an elongated columnar shape formed inside the heat transfer tube 2, and 5 a blow-through of a combustion gas installed downstream of the combustion chamber. Is a baffle, 7 is an inlet solution, 8 is an outlet solution and generated steam, 9 is a combustion gas emitted downward, and 10 is an exhaust gas.

本実施例では上記に示すように、伝熱管2を直線部と半
円部からなる長円形らせん形状に巻き、このらせん形状
伝熱管の内側に形成される長円柱の燃焼室4にあうよう
なライン状火炎をもつ燃焼器1を用いたので、円形のら
せん形状伝熱管よりも熱伝達効率を上げて全体を小形化
できる。例えば、燃焼ガス流路面積を同じにした場合、
円形らせん形状の伝熱管の1周の長さは長円形らせん形
状の伝熱管の1周の長さよりも短かくなり、同じ伝熱面
積を確保するためには巻き段数が多くなり全体寸法は大
きくなる。あるいは、1周の伝熱管長さを同じにして円
形らせん状に伝熱管を形成した場合には、燃焼ガス流路
面積が広くなってガス流速が遅くなり燃焼ガス側熱伝達
率が低下するので、伝達面積が多く必要になり、大形化
につながる。これを防ぐために、燃焼室の中央にバッフ
ルを設置して燃焼ガスの流速を上げることにより伝熱管
の段数を同じにした場合でも、バッフルの部分の体積は
大きく、発生器が大形化する。また、1000℃程度高
温にさらされるバッフルの材料としては高価な耐熱材が
必要となる。
In this embodiment, as described above, the heat transfer tube 2 is wound into an elliptical spiral shape consisting of a straight line portion and a semicircular portion, and the heat transfer tube 2 is fitted into the combustion chamber 4 of an elongated cylinder formed inside the spiral heat transfer tube. Since the combustor 1 having a line-shaped flame is used, the heat transfer efficiency can be improved and the overall size can be reduced as compared with the circular spiral heat transfer tube. For example, if the combustion gas passage area is the same,
The circumference of a circular spiral heat transfer tube is shorter than the circumference of an elliptical spiral heat transfer tube. To secure the same heat transfer area, the number of winding steps increases and the overall size increases. Become. Alternatively, when the heat transfer tube is formed in a circular spiral shape with the same length of the heat transfer tube for one round, the combustion gas passage area becomes wide, the gas flow velocity becomes slow, and the heat transfer coefficient on the combustion gas side decreases. However, a large transmission area is required, leading to a larger size. In order to prevent this, even if the baffle is installed in the center of the combustion chamber and the flow rate of the combustion gas is increased to make the number of stages of the heat transfer tubes the same, the volume of the baffle portion is large and the generator becomes large. Further, an expensive heat resistant material is required as a material for the baffle exposed to a high temperature of about 1000 ° C.

また、円形らせん状の伝熱管では図3に示すように内部
を流れる溶液11に遠心力が働いて溶液が外側へ押しや
られるために、燃焼ガス9からの熱が流入するらせん状
伝熱管2の内側の伝熱面で液切れが起こり局所加熱が発
生するが、直線部分の伝熱管内部の溶液は図4に示すよ
うに遠心力を受けず、最も熱負荷の高い燃焼ガス側の伝
熱面にも十分溶液がまわり込み、局所加熱の発生を防止
できる。
Further, in the circular spiral heat transfer tube, as shown in FIG. 3, centrifugal force acts on the solution 11 flowing inside to push the solution outward, so that the heat from the combustion gas 9 flows into the spiral heat transfer tube 2. Although liquid runs out on the inner heat transfer surface and local heating occurs, the solution inside the straight heat transfer tube is not subjected to centrifugal force as shown in Fig. 4, and the heat transfer surface on the combustion gas side with the highest heat load Even so, the solution can sufficiently wrap around and prevent the occurrence of local heating.

また、本実施例において、燃焼ガス上から下へ流し、溶
液を下から上へ流す対向流としたので伝熱効率を向上で
きるとともに、液の密度が小さくなり自然に上昇する対
流効果も利用できる。
Further, in the present embodiment, since the counter flow is such that the combustion gas is flown from the top to the bottom and the solution is flowed from the bottom to the top, the heat transfer efficiency can be improved, and the convection effect that the density of the liquid becomes small and naturally rises can be utilized.

さらに、燃焼ガス温度の低下に従って伝熱管にフィンを
設け、燃焼ガスの下流側ほどフィン高さを高く、フィン
ピッチを細かくするとともに、燃焼ガス温度の低くなっ
た最下流部に燃焼ガスの吹き抜けを防止するバッフルを
設けることにより、伝熱管の熱負荷を均一化して、局部
加熱を防止し全体の小形化を図ることができる。
Further, as the combustion gas temperature decreases, fins are provided on the heat transfer tube, the fin height is increased toward the downstream side of the combustion gas, the fin pitch is made finer, and the combustion gas is blown through to the most downstream part where the combustion gas temperature is low. By providing the baffle for preventing, the heat load of the heat transfer tube can be made uniform, local heating can be prevented, and the overall size can be reduced.

また、本実施例では伝熱管を1本で形成しているので、
燃焼室内部に溶接の継ぎ目がなく、モレや腐食に対する
信頼性が向上するという効果もある。
Further, in this embodiment, since the heat transfer tube is formed by one,
Since there is no welding seam inside the combustion chamber, there is an effect that reliability against leakage and corrosion is improved.

また、外壁がベアチューブと接触して配置されているの
で高温の燃焼ガスの吹き抜けが起こらず、壁の過熱を防
止できるという利点もある。
Further, since the outer wall is arranged in contact with the bare tube, there is an advantage that high temperature combustion gas does not blow through and the wall can be prevented from overheating.

次に本発明の他の実施例を第3図により説明する。Next, another embodiment of the present invention will be described with reference to FIG.

1は円筒状の比較的長い火炎をもつガンタイプの燃焼
器、4は水冷壁6に囲まれて横方向から燃焼器1の火炎
が吹き出す燃焼室、6は燃焼室4をとり囲み伝熱管2か
らの溶液および発生蒸気が流入して蒸発を完了させる水
冷壁であり、他の構成は第1図に示す実施例と同じであ
るので説明を省略する。
Reference numeral 1 denotes a gun-type combustor having a cylindrical relatively long flame, 4 denotes a combustion chamber surrounded by a water cooling wall 6 from which the flame of the combustor 1 blows from the lateral direction, and 6 denotes a heat transfer tube 2 surrounding the combustion chamber 4 It is a water-cooling wall for the solution and the generated vapor to flow in and complete the evaporation. Since the other structure is the same as that of the embodiment shown in FIG. 1, its explanation is omitted.

以上のように構成した本実施例においては、円筒状の火
炎をもつガンタイプバーナ1の火炎を水冷壁6で囲まれ
た燃焼室4に横方向に吹き出し、この燃焼室4の下に配
置されて長円形らせん形状伝熱管の曲げ加工が不要にな
り、製作が簡単になり信頼性が向上するという効果もあ
る。
In the present embodiment configured as described above, the flame of the gun-type burner 1 having a cylindrical flame is blown laterally to the combustion chamber 4 surrounded by the water cooling wall 6 and is arranged under the combustion chamber 4. It also eliminates the need for bending the elliptical spiral heat transfer tube, which simplifies production and improves reliability.

次に本発明の他の実施例を第8図により説明する。Next, another embodiment of the present invention will be described with reference to FIG.

13は径の異なる伝熱管を結合する管継手で、他の構成
は第1図,第2図に示す実施例と同じであるので説明を
省略する。
Reference numeral 13 is a pipe joint for connecting heat transfer pipes having different diameters, and the other structure is the same as that of the embodiment shown in FIGS.

以上のように構成した本実施例においては、第1図及び
第2図と同様の効果が得られるとともに、管継手を用い
て溶液の上流側の管径を細く、沸騰が進行して二相流と
なる下流側の管径を太く構成したので、圧力損失を増加
させずに、管内側熱伝達率を向上させて、全体を小形化
できるという効果もある。
In the present embodiment configured as described above, the same effects as those in FIG. 1 and FIG. 2 are obtained, and the pipe diameter of the upstream side of the solution is reduced by using the pipe joint so that the boiling progresses and the two-phase flow occurs. Since the diameter of the pipe on the downstream side which becomes the flow is made thick, there is also an effect that the heat transfer coefficient inside the pipe can be improved and the overall size can be reduced without increasing the pressure loss.

〔発明の効果〕〔The invention's effect〕

以上説明したように、本発明において、伝熱管を比較的
長い直線部と曲がり部とからなる細長いら線状に形成
し、これらの伝熱管に囲まれた燃焼ガスの流路を細長い
形状にするとともに、燃焼ガスの流れを上から下へ、溶
液の流れを下から上へ流す対向流とし、燃焼ガス温度の
低下に合わせて伝熱管にフィンを設け、燃焼ガス下流側
ほどフィン高さを高く、フインピッチを細かくし、さら
に、らせん状伝熱管に囲まれた燃焼ガス流路の中央部に
燃焼ガスの吹き抜けを防ぐバッフルを設けるように、貫
流ボイラ形の発生器を構成したので、 (1)全体形状がスリムになり高さが低くなって小形化で
きる。
As described above, in the present invention, the heat transfer tube is formed in the shape of a long slender line composed of a relatively long straight portion and a bent portion, and the flow path of the combustion gas surrounded by these heat transfer tubes is formed into a long thin shape. At the same time, the flow of the combustion gas is from top to bottom, and the flow of the solution is from bottom to top, and the fins are installed in the heat transfer tube as the temperature of the combustion gas decreases. Since the fin pitch is made finer and a baffle that prevents blow-through of combustion gas is provided in the center of the combustion gas flow path surrounded by the spiral heat transfer tube, the once-through boiler type generator is configured. The overall shape is slim and the height is low, so it can be miniaturized.

(2)局所加熱を防止して、耐久性、信頼性を向上でき
る。
(2) Local heating can be prevented to improve durability and reliability.

(3)熱負荷の均一化を図って効率が向上する。(3) The efficiency is improved by making the heat load uniform.

【図面の簡単な説明】[Brief description of drawings]

第1図は本発明の一実施例の縦断面図、第2図は第1図
のAA断面図である。第3図は従来の伝熱管内の溶液の
流れを示した図、第4図は本発明の伝熱管内の溶液の流
れを示した図である。第5図は本発明の他の実施例の縦
断面図、第6図は本発明のその他の実施例の縦断面図、
第7図は第6図のAA断面図、第8図は本発明のその他
の実施例の縦断面図である。 1…バーナー,2…伝熱管、3…外壁、4…燃焼室、5
…バッフル、6…水冷壁、7…入口溶液、8…出口溶
液、9…燃焼ガス、10…排ガス、11…溶液、12…
ヘッダ、13…管継手。
1 is a longitudinal sectional view of an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line AA in FIG. FIG. 3 is a diagram showing the flow of the solution in the conventional heat transfer tube, and FIG. 4 is a diagram showing the flow of the solution in the heat transfer tube of the present invention. FIG. 5 is a vertical sectional view of another embodiment of the present invention, and FIG. 6 is a vertical sectional view of another embodiment of the present invention.
FIG. 7 is a sectional view taken along the line AA in FIG. 6, and FIG. 8 is a longitudinal sectional view showing another embodiment of the present invention. 1 ... Burner, 2 ... Heat transfer tube, 3 ... Outer wall, 4 ... Combustion chamber, 5
... baffle, 6 ... water cooling wall, 7 ... inlet solution, 8 ... outlet solution, 9 ... combustion gas, 10 ... exhaust gas, 11 ... solution, 12 ...
Header, 13 ... Pipe fitting.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】巻き段数が複数であって内部を溶液が流れ
るフィンを有する伝熱管と、該伝熱管を取り囲む外壁
と、該外壁に取り付けられた燃焼器を備え、該燃焼器の
燃焼ガスが外壁内を流るように構成するとともに、前記
燃焼器から遠い位置に前記伝熱管の溶液の流入口が、近
い位置に前記伝熱管の溶液の流出口が設けられている吸
収式冷温水機の発生器において、前記伝熱管を比較的長
い直線部と曲がり部とでら線状に形成して、伝熱管で囲
まれた内側に燃焼ガス通路を形成するとともに、前記溶
液の流入口より溶液の流れる方向で少なくとも巻き段数
が1段下流側に前記燃焼ガスの吹き抜けを防止するため
のバッフル板を前記伝熱管で囲まれた内側に設け、前記
溶液の流入口側の前記バッフル板前後の伝熱管にフィン
を設け、流出口側の伝熱管を裸管としたことを特徴とす
る吸収式冷温水機の発生器。
1. A heat transfer tube having a plurality of winding stages and having fins through which a solution flows, an outer wall surrounding the heat transfer tube, and a combustor attached to the outer wall. While being configured to flow inside the outer wall, the solution inlet of the heat transfer tube is located at a position distant from the combustor, and the solution outlet of the heat transfer tube is provided at a position close to the absorption chiller-heater. In the generator, the heat transfer tube is formed in a linear shape with a relatively long straight portion and a bent portion to form a combustion gas passage inside the heat transfer tube, and the solution is introduced from an inlet of the solution. A baffle plate for preventing blow-through of the combustion gas is provided on the downstream side of at least one winding stage in the flowing direction inside the heat transfer tube, and the heat transfer tubes before and after the baffle plate on the inlet side of the solution are provided. A fin is installed on the Generator of an absorption chiller-heater is characterized in that the heat pipe and bare tube.
【請求項2】燃焼ガスを上から下、被加熱溶液を下から
上に流すようにしたことを特徴とする特許請求の範囲第
1項記載の吸収式冷温水機の発生器。
2. The generator for an absorption chiller-heater according to claim 1, wherein the combustion gas is caused to flow from above and the solution to be heated is caused to flow from below to above.
【請求項3】前記伝熱管のフィンを燃焼ガスの下流側ほ
ど高さが高くピッチが密になるようにしたことを特徴と
する特許請求の範囲第1項記載の吸収式冷温水機の発生
器。
3. The absorption type chiller-heater according to claim 1, wherein the fins of the heat transfer tube are higher in height and denser in pitch toward the downstream side of the combustion gas. vessel.
JP22575384A 1984-10-29 1984-10-29 Absorption chiller / heater generator Expired - Lifetime JPH063330B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22575384A JPH063330B2 (en) 1984-10-29 1984-10-29 Absorption chiller / heater generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22575384A JPH063330B2 (en) 1984-10-29 1984-10-29 Absorption chiller / heater generator

Publications (2)

Publication Number Publication Date
JPS61105064A JPS61105064A (en) 1986-05-23
JPH063330B2 true JPH063330B2 (en) 1994-01-12

Family

ID=16834284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22575384A Expired - Lifetime JPH063330B2 (en) 1984-10-29 1984-10-29 Absorption chiller / heater generator

Country Status (1)

Country Link
JP (1) JPH063330B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04344083A (en) * 1991-05-21 1992-11-30 Osaka Gas Co Ltd Once-through regenerator in absorption refrigerator

Also Published As

Publication number Publication date
JPS61105064A (en) 1986-05-23

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