JP2605869B2 - Heat exchange equipment - Google Patents

Description

【発明の詳細な説明】 産業上の利用分野 本発明は高温ガスにより冷媒を加熱し冷暖房装置に利
用する熱交換器に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger that heats a refrigerant with a high-temperature gas and uses the refrigerant in a cooling and heating device.

従来の技術 被加熱側流体に冷媒を用いて、燃焼ガスにより加熱し
て液状冷媒を蒸発気化させて潜熱により熱を運び暖房を
行うものに第５図に示すような冷媒加熱暖房機がある。
これは高温の燃焼排気ガスと冷媒との熱交換器１と放熱
器２を密閉管路３で連結すると共に密閉管路３中に設け
た冷媒ポンプや圧縮機等の冷媒搬送機４により冷媒を強
制循環するものである。第６図は、熱交換器１の従来例
を示したもので（特開昭59−107167号公報）、水平方向
に延びるアルミニューム製の円筒状内周面に複数のフィ
ン５を設け、外周面軸方向にはパイプ保持部６及び冷媒
が内部を流れる銅材質からなるパイプ７を設けたもの
で、バーナー８からの高温の燃焼排気ガスを円筒状内面
９に水平横方向に流して、冷媒搬送機４により送られて
きた水平横方向のパイプ７内を流れる冷媒を加熱するも
のである。2. Description of the Related Art There is a refrigerant heating / heating machine as shown in FIG. 5 in which a refrigerant is used as a fluid to be heated and heated by a combustion gas to evaporate and evaporate a liquid refrigerant to carry heat by latent heat and heat.
This is achieved by connecting a heat exchanger 1 between a high-temperature combustion exhaust gas and a refrigerant and a radiator 2 by a closed conduit 3 and by using a refrigerant transfer device 4 such as a refrigerant pump or a compressor provided in the closed conduit 3 to transfer the refrigerant. It is a forced circulation. FIG. 6 shows a conventional example of the heat exchanger 1 (Japanese Patent Application Laid-Open No. Sho 59-107167), in which a plurality of fins 5 are provided on a cylindrical inner peripheral surface of aluminum extending in the horizontal direction. A pipe holding portion 6 and a pipe 7 made of a copper material through which a refrigerant flows are provided in the plane axis direction. The high-temperature combustion exhaust gas from the burner 8 flows horizontally and horizontally to the cylindrical inner surface 9, and the refrigerant This is for heating the refrigerant flowing through the pipe 7 in the horizontal and horizontal direction sent by the transporter 4.

しかし、この暖房システムでは冷媒搬送に外部動力が
必要であり、さらに熱交換効率の向上も含めた暖房運転
時のランニングコストを低減することが望まれている。However, in this heating system, an external power is required for transporting the refrigerant, and it is desired that the running cost during the heating operation including the improvement of the heat exchange efficiency be reduced.

また、この種の熱交換装置の従来公知技術として、特
開昭63−105395号公報および実開昭63−179464号公報に
示されたものがある。Japanese Patent Application Laid-Open No. Sho 63-105395 and Japanese Utility Model Application Laid-Open No. Sho 63-177944 disclose conventional heat exchangers of this type.

これらには縦方向の多数の冷媒通路を形成した２つの
冷媒通路部材が用いられているが、さらに、冷媒の流れ
抵抗の低減、２つの冷媒通路部材への均等な分流、バー
ナーの燃焼排気ガスから冷媒への熱交換効率のアップ、
伝熱フィンから冷媒通路部材への熱のスムーズな伝熱と
温度の均一化、熱交換装置の構成の簡略化と小型化等の
課題を有しているものである。In these, two refrigerant passage members each having a large number of refrigerant passages in the vertical direction are used. Further, the flow resistance of the refrigerant is reduced, the flow is divided equally into the two refrigerant passage members, and the combustion exhaust gas of the burner is reduced. The efficiency of heat exchange from water to refrigerant,
It has problems such as smooth heat transfer from the heat transfer fins to the refrigerant passage member and uniform temperature, and simplification and downsizing of the configuration of the heat exchange device.

発明が解決しようとする課題 暖房運転時のランニングコスト低減には冷媒搬送用の
外部動力を無くして無動力で熱搬送することが有効であ
る。無動力熱搬送により、冷媒加熱暖房を行う場合、液
状冷媒が加熱されて発生する気体冷媒の自然潤滑力が重
要となる。Problems to be Solved by the Invention To reduce the running cost during the heating operation, it is effective to eliminate the external power for transporting the refrigerant and carry out the heat transport without power. When heating and heating the refrigerant by non-powered heat transfer, the natural lubricating power of the gas refrigerant generated by heating the liquid refrigerant is important.

この種の暖房装置は、従来は第５図、第６図に示すよ
うに冷媒加熱用熱交換器１のような構成であり、冷媒は
水平方向で、且つ連続した一通路としてパイプ７内を流
れるので、加熱されて気液二相混合状態の冷媒の気体成
分がスムーズに出口に向かって流れないため冷媒の淀み
を生じ、局部的な異常過熱を発生したり、冷媒の流れ抵
抗が大きく、熱交換率も低い。また燃焼室と熱交換部が
一体であるため熱交換量が燃焼状態により不均一である
ため局部過熱を生じ冷媒の熱分解あるいは機器の異常温
度上昇など、機器の信頼性能上の課題があった。Conventionally, this type of heating device has a configuration like a heat exchanger 1 for heating a refrigerant as shown in FIGS. 5 and 6, in which a refrigerant flows in a pipe 7 in a horizontal direction and as a continuous passage. As it flows, the gas component of the refrigerant in the gas-liquid two-phase mixed state does not flow smoothly toward the outlet due to heating, causing refrigerant stagnation, causing local abnormal overheating, or having a large flow resistance of the refrigerant, The heat exchange rate is also low. In addition, since the combustion chamber and the heat exchange section are integrated, the heat exchange amount is not uniform depending on the combustion state, causing local overheating, causing thermal decomposition of the refrigerant or an abnormal temperature rise of the apparatus, thereby causing problems in the reliability performance of the apparatus. .

また従来の公知技術である特開昭63−105395号公報お
よび実開昭63−179464号公報に示されたものは、多数の
通路を形成した冷媒通路部材が燃焼室の両サイドに設け
られ、この各々の冷媒通路部材に伝熱フィンからの熱を
伝えると共に、冷媒通路部材に連通した入口及び出口ヘ
ッダー管とこれら左右のヘッダー管を連通させる管を有
している。Further, in the prior art disclosed in JP-A-63-105395 and JP-A-63-179464, refrigerant passage members having a large number of passages are provided on both sides of a combustion chamber. In addition to transmitting heat from the heat transfer fins to each of the refrigerant passage members, the refrigerant passage members have inlet and outlet header tubes communicating with the refrigerant passage members and tubes connecting these left and right header tubes.

この場合、液冷媒が１本の冷媒入口管から分岐して左
右の２本の入口ヘッダー管に入り、各々の冷媒通路部材
の通路を上昇する過程で加熱され気液２相流となって出
口ヘッダー管に吹き上げる。この２本の出口ヘッダーか
ら１本の冷媒出口管に集合して放熱器に吐出する。In this case, the liquid refrigerant branches from one refrigerant inlet pipe, enters the two left and right inlet header pipes, and is heated in the process of ascending the passages of the respective refrigerant passage members to form a gas-liquid two-phase flow and exit. Blow up into the header tube. From these two outlet headers, they are collected into one refrigerant outlet tube and discharged to the radiator.

このように液冷媒の流れに対する分岐抵抗、冷媒通路
部材の通路抵抗、ガスと液の２相状態の冷媒の集合する
ところでの衝突による合流抵抗など、各々の冷媒の流れ
に対する抵抗変動が大きい。このため燃焼室を挟んで位
置する左右両サイドの冷媒部材の通路への冷媒流量に差
を生じる。As described above, there are large fluctuations in the resistance to the flow of each refrigerant, such as the branch resistance to the flow of the liquid refrigerant, the path resistance of the refrigerant passage member, and the merge resistance due to collision at the point where the refrigerant in the two-phase state of gas and liquid gathers. For this reason, a difference occurs in the flow rate of the refrigerant to the passages of the refrigerant members on both the left and right sides located across the combustion chamber.

また、熱交換器が傾斜して設置された場合、前記冷媒
流量差がさらに大きくなる。さらに燃焼室内での燃焼火
災、燃焼排気ガスの流れも変動しやすく、左右両サイド
の冷媒通路部材を均等に加熱することが困難である。こ
のため左右両サイドの冷媒通路部材に温度差を生じ、冷
媒の過熱による熱分解を生じやすく、熱交換もばらつき
が大きく高効率を維持できないと共に、温度の不均一に
よる熱応力で変形、破損しやすいなど耐久性にも課題が
ある。In addition, when the heat exchanger is installed at an angle, the difference in the refrigerant flow rate is further increased. Furthermore, the combustion fire in the combustion chamber and the flow of the combustion exhaust gas are also likely to fluctuate, and it is difficult to uniformly heat the refrigerant passage members on both the left and right sides. For this reason, a temperature difference occurs between the refrigerant passage members on both the left and right sides, and thermal decomposition due to overheating of the refrigerant is likely to occur, heat exchange also varies widely, and high efficiency cannot be maintained, and deformation and breakage due to thermal stress due to uneven temperature. There is also a problem in durability, such as ease of use.

また、左右両サイドの冷媒通路部材の片方に過熱検知
センサーを配設しても熱交換器全体の代表温度とならず
安全に制御することができない。Further, even if the overheat detection sensors are disposed on one of the left and right sides of the refrigerant passage member, the temperature does not reach the representative temperature of the entire heat exchanger, so that it cannot be safely controlled.

さらに構成が複雑であり、製造時の加工ばらつきも大
きく、コストも非常に高いなど実用上の課題を有してい
る。Furthermore, there are practical problems such as a complicated configuration, large processing variations during manufacturing, and extremely high cost.

本発明は上記従来例の課題を解決するもので、冷媒の
均一な加熱と熱交換効率の向上、冷媒の円滑な流れと熱
交換装置の均一な温度分布と安全性、耐久性の向上、構
成の簡略化と小型化、低コスト化をはかることを目的と
する。The present invention solves the above-mentioned problems of the conventional example, and improves the uniform heating of the refrigerant and the heat exchange efficiency, the smooth flow of the refrigerant and the uniform temperature distribution and safety of the heat exchange device, and the improvement of the durability. It is intended to simplify, reduce the size, and reduce the cost.

課題を解決するための手段 上記課題を解決するために本発明の熱交換装置は、板
状の伝熱隔壁部材と、この一方の面に密着固定した上下
縦方向に伝熱隔壁部材に平行な複数列の通路群を有する
冷媒通路部材と、前記通路群に連通した下側に設けた入
口ヘッダー管および上側に設けた出口ヘッダー管と、前
記伝熱隔壁部材の他方の面に密着固定し間隔を有し上下
に分割した伝熱フィンと、この伝熱フィンを覆い前記伝
熱隔壁部材に固定した高温ガス通路部材と、この高温ガ
ス通路部材に連設した燃焼室と、この燃焼室に連通する
バーナと、このバーナからの燃焼排気ガスを前記上下に
分割し間隔を有した各々の伝熱フィンに導く高温ガス通
路部材に形成した高温の排気ガス入口と、前記伝熱フィ
ンを通った排気ガスを排出する排気部を備えた構成であ
る。Means for Solving the Problems In order to solve the above-mentioned problems, the heat exchange device of the present invention has a plate-shaped heat transfer partition member, and a vertically parallel heat transfer partition member vertically fixed to and fixed to one surface thereof. A refrigerant passage member having a plurality of rows of passage groups, an inlet header tube provided on the lower side and an outlet header tube provided on the upper side communicating with the passage group, and a space tightly fixed to the other surface of the heat transfer partition member. A heat transfer fin divided into upper and lower portions, a high-temperature gas passage member covering the heat transfer fin and fixed to the heat transfer partition member, a combustion chamber connected to the high-temperature gas passage member, and communicating with the combustion chamber A high-temperature exhaust gas inlet formed in a high-temperature gas passage member that guides the combustion exhaust gas from the burner to the upper and lower heat transfer fins and an exhaust gas that passes through the heat transfer fin. Structure with an exhaust part for discharging gas It is good.

作用 本発明は上記した構成によって、冷媒が入口ヘッダー
管より一つの冷媒通路部材に伝熱隔壁部材に平行に複数
列設けた通路群を縦方向に流れることによって各々の通
路に均一に分流すると共に、高温の燃焼排気ガスが排気
ガス入口より上下に分割された伝熱フィンに分流して流
れ、この熱で伝熱フィンを介して冷媒通路部材を均一に
加熱する。また冷媒通路部材が片側のみの簡略化された
基本構成となる。The present invention has the configuration described above, and the refrigerant flows from the inlet header pipe to one refrigerant passage member in a vertical direction through a passage group provided in a plurality of rows in parallel with the heat transfer partition member, whereby the refrigerant is uniformly divided into each passage. Then, the high-temperature combustion exhaust gas is diverted and flows to the heat transfer fins divided vertically from the exhaust gas inlet, and the heat uniformly heats the refrigerant passage member through the heat transfer fins. In addition, the refrigerant passage member has a simplified basic configuration with only one side.

実施例 以下、本発明の実施例を添付図面にもとづいて説明す
る。第１図〜第４図において、10は燃料供給装置に接続
したバーナー８に連通して設けた燃焼室、11は板状の伝
熱隔壁部材であり、12は高温ガス通路部材でその外周は
伝熱隔壁部材11と密着し燃焼室10に連通して設けた排気
ガス入口13と排気部14を有している。15は伝熱隔壁部材
11の一方面に密着固定した冷媒通路部材であり縦方向の
通路16群を形成し、この通路群16は伝熱隔壁部材11に平
行に２列の通路群16a、16bを有している。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 4, reference numeral 10 denotes a combustion chamber provided in communication with a burner 8 connected to a fuel supply device, 11 denotes a plate-shaped heat transfer partition member, 12 denotes a high-temperature gas passage member, and an outer periphery thereof is provided. An exhaust gas inlet 13 and an exhaust portion 14 are provided in close contact with the heat transfer partition member 11 and communicate with the combustion chamber 10. 15 is a heat transfer partition member
A refrigerant passage member closely adhered and fixed to one surface of 11 forms a group of vertical passages 16, and this passage group 16 has two rows of passage groups 16 a and 16 b parallel to the heat transfer partition member 11.

なお、この通路群16a、16bは必要に応じて列数を増し
てもよい。17は冷媒通路部材15の下端に固着した入口ヘ
ッダー管、18は冷媒通路部材15の上端に固着した出口ヘ
ッダー管でありそれぞれ入口管19、出口管20を接続し、
この各々が冷媒回路（図示無し）と接続している。入口
ヘッダー管17の他端には下方に曲折したオイル抜き管21
を設けてある。入口ヘッダー管17と出口ヘッダー管18は
それぞれ縦方向の通路群16a、16bと連通している。22
A、22Bは伝熱隔壁部材11の他方の面に上下に分割し間隔
を有して密着固定した伝熱フィンであり波形状に形成さ
せてある。燃焼室10の高温ガス通路部材12と接しない残
りの外面は、全面を覆う断熱材23が設けてある。The number of rows of the passage groups 16a and 16b may be increased as necessary. 17 is an inlet header pipe fixed to the lower end of the refrigerant passage member 15, 18 is an outlet header pipe fixed to the upper end of the refrigerant passage member 15, and connects the inlet pipe 19 and the outlet pipe 20, respectively.
Each of them is connected to a refrigerant circuit (not shown). The other end of the inlet header pipe 17 has an oil drain pipe 21 bent downward.
Is provided. The inlet header pipe 17 and the outlet header pipe 18 communicate with the vertical passage groups 16a and 16b, respectively. twenty two
Reference numerals A and 22B denote heat transfer fins which are vertically divided on the other surface of the heat transfer partition member 11 and are closely fixed with a space therebetween, and are formed in a wave shape. The remaining outer surface of the combustion chamber 10 that is not in contact with the hot gas passage member 12 is provided with a heat insulating material 23 that covers the entire surface.

24及び25は伝熱フィン22A、22Bに形成され燃焼排気ガ
スの通路、26、27は伝熱フィン22A、22Bの両サイドに形
成した排気通路で排気部14に連通している。Reference numerals 24 and 25 denote passages formed in the heat transfer fins 22A and 22B for combustion exhaust gas, and reference numerals 26 and 27 denote exhaust passages formed on both sides of the heat transfer fins 22A and 22B and communicate with the exhaust portion 14.

上記構成に於て、燃料の供給装置により供給した燃料
をバーナー８で燃焼し、燃焼室10に発生した高温の排気
ガスは排気ガス入口13を通り上下に分割された伝熱フィ
ン22A、22Bの通路24、25を通り、排気通路26、27から排
気部14より排気する。冷媒入口管19を通って入口ヘッダ
ー管17に入った液冷媒は冷媒通路部材15の下部より縦方
向の通路群16a、16bに分流し上昇する。伝熱フィン22
A、22Bから伝熱隔壁部材11を介して冷媒通路部材15に伝
熱し、この冷媒通路部材15の縦方向の通路群16a、16b内
の冷媒を十分に加熱する。そこで加熱された液状冷媒は
気化蒸発を開始し液の中に気泡を生じる気液二相状態と
なる。発生した気泡は浮力効果で縦方向に設けた通路群
16a、16b内を下方から上方に上昇し、気泡ポンプ作用が
発生する。特に排気ガスは燃焼室10から排気ガス入口13
を出たのち上下に分割された伝熱フィン22A、22B、に分
流する。一つの排気ガス入口から排気ガスが噴出するこ
とにより排気ガスの温度と流れを均一にして上下に分割
された伝熱フィン22A、22Bを加熱するので冷媒通路部材
の各部も均一加熱でき冷媒を局部過熱させることなく無
動力熱搬送を確実におこなわせ冷媒の熱分解を生じな
い。均一加熱と共に冷媒通路部材15には伝熱隔壁部材11
に平行に複数列の通路群16a、16bを有しているので、こ
の通路群16a、16bの冷媒通過の断面積が増加する。さら
に液冷媒への熱伝達面積も増加する。従って通路群16
a、16b内の流れの抵抗を低減させること及び冷媒への熱
伝達量が増すことによって気泡発生が増大し、この気泡
上昇力により自然循環力を強くすることができる。さら
に通路16a、16bの上部、下部に設けた伝熱フィン22A、2
2Bと共に伝熱隔壁11全面も伝熱面積となり排気ガスより
効率よく吸熱し通路群16a、16b内の気液二相状態の冷媒
をさらに加熱して自然循環力をさらに増大させる。通路
群16a,16bの上端に達した冷媒は出口ヘッダー管18に流
入し冷媒出口管20より放熱器（図示せず）に向かって流
出する。In the above configuration, the fuel supplied by the fuel supply device is burned by the burner 8, and the high-temperature exhaust gas generated in the combustion chamber 10 passes through the exhaust gas inlet 13 into the upper and lower divided heat transfer fins 22A and 22B. The air passes through the passages 24 and 25 and is exhausted from the exhaust passages 26 and 27 from the exhaust part 14. The liquid refrigerant that has entered the inlet header pipe 17 through the refrigerant inlet pipe 19 flows from the lower part of the refrigerant passage member 15 into the vertical passage groups 16a and 16b and rises. Heat transfer fins 22
Heat is transferred from A, 22B to the refrigerant passage member 15 via the heat transfer partition member 11, and the refrigerant in the vertical passage groups 16a, 16b of the refrigerant passage member 15 is sufficiently heated. Then, the heated liquid refrigerant starts vaporizing and evaporating, and enters a gas-liquid two-phase state in which bubbles are generated in the liquid. The generated bubbles are a group of passages provided in the vertical direction due to the buoyancy effect
The inside of 16a and 16b rises upward from below, and a bubble pump action occurs. In particular, the exhaust gas flows from the combustion chamber 10 to the exhaust gas inlet 13
And then split into heat transfer fins 22A and 22B, which are divided into upper and lower parts. Since the exhaust gas is blown out from one exhaust gas inlet, the temperature and flow of the exhaust gas are made uniform and the upper and lower divided heat transfer fins 22A and 22B are heated, so that each part of the refrigerant passage member can be uniformly heated and the refrigerant is locally heated. Powerless heat transfer is reliably performed without overheating, and thermal decomposition of the refrigerant does not occur. With uniform heating, the heat transfer partition member 11 is
And a plurality of rows of passage groups 16a and 16b in parallel with each other, the cross-sectional area of passage of the refrigerant in the passage groups 16a and 16b increases. Further, the heat transfer area to the liquid refrigerant also increases. Therefore, passage group 16
By reducing the resistance of the flow in a and 16b and increasing the amount of heat transfer to the refrigerant, the generation of bubbles increases, and the natural circulation force can be strengthened by the bubble rising force. Further, the heat transfer fins 22A, 22 provided at the upper and lower portions of the passages 16a, 16b
The entire surface of the heat transfer partition 11 along with 2B also becomes a heat transfer area, absorbs heat more efficiently than exhaust gas, further heats the gas-liquid two-phase refrigerant in the passage groups 16a and 16b, and further increases the natural circulation force. The refrigerant that has reached the upper ends of the passage groups 16a and 16b flows into the outlet header tube 18 and flows out of the refrigerant outlet tube 20 toward a radiator (not shown).

このように縦方向の通路群16a、16bの下部から上部に
至るまで加熱することにより自然循環を高めるだけでな
く、下部において伝熱フィン22Bにより強く加熱するこ
とで自然循環力をさらに増加させる。As described above, not only the natural circulation is enhanced by heating from the lower part to the upper part of the vertical passage groups 16a, 16b, but also the natural circulation force is further increased by heating the lower part by the heat transfer fins 22B.

発明の効果 以上のように本発明の熱交換装置は、板状の伝熱隔壁
部材と、この一方の面に密着固定した上下縦方向に伝熱
隔壁部材に平行な複数列の通路群を有する冷媒通路部材
と、前記通路群に連通した下側に設け入口ヘッダー管お
よび上側に設けた出口ヘッダー管と、前記伝熱隔壁部材
の他方の面に密着固定し間隔を有し上下に分割した伝熱
フィンと、この伝熱フィンを覆い前記伝熱隔壁部材に固
定した高温ガス通路部材と、この高温ガス通路部材に連
設した燃焼室と、この燃焼室に連通するバーナと、この
バーナからの燃焼排気ガスを前記上下に分割し間隔を有
した各々の伝熱フィンに導く高温ガス通路部材に形成し
た高温の排気ガス入口と、前記伝熱フィンを通った排気
ガスを排出する排気部を備えたもので次のような効果を
有する。Effect of the Invention As described above, the heat exchange device of the present invention has a plate-like heat transfer partition member and a plurality of rows of passage groups parallel to the heat transfer partition member in the vertical and vertical directions fixed to one surface thereof in close contact. A refrigerant passage member, an inlet header tube provided on the lower side and an outlet header tube provided on the upper side communicating with the passage group, and a vertically divided and vertically divided transmission line fixed to the other surface of the heat transfer partition member. A heat fin, a hot gas passage member covering the heat transfer fin and fixed to the heat transfer partition member, a combustion chamber connected to the hot gas passage member, a burner communicating with the combustion chamber, A high-temperature exhaust gas inlet formed in a high-temperature gas passage member for leading the combustion exhaust gas to the upper and lower divided heat transfer fins, and an exhaust portion for discharging the exhaust gas passing through the heat transfer fins; It has the following effects.

（１）従来公知技術のように燃焼室の左右両サイドに冷
媒通路部材を有し、それらの各々に出口ヘッダー管を設
けさらにこれら出入口ヘッダー管を集合させる管を有す
る構成に対して本発明は、伝熱隔壁に平行に複数列の通
路群を設けた一つの冷媒通路部材をその一方の側面から
伝熱フィンを介して加熱するので、熱交換装置が傾斜し
たとしても一つの入口ヘッダー管から各通路に均一に分
流されるので冷媒の過熱を生じることがない。また各々
の通路で均一な気泡ポンプ効果が発揮される。(1) The present invention is directed to a configuration in which a refrigerant passage member is provided on both left and right sides of a combustion chamber, an outlet header tube is provided in each of them, and a tube for assembling the entrance header tube is provided. Since one refrigerant passage member provided with a plurality of rows of passage groups parallel to the heat transfer partition is heated from one side thereof through the heat transfer fins, even if the heat exchange device is inclined, the heat can be transferred from one inlet header tube. Since the flow is uniformly distributed to each passage, the refrigerant does not overheat. In addition, a uniform bubble pump effect is exhibited in each passage.

さらに一つの冷媒通路部材が排気ガスによって均一に
過熱されるので熱応力が抑制され変形、破損を生じるこ
とがなく、例えば１つの過熱検知センサーによる安全な
検知も可能となる。Further, since one refrigerant passage member is uniformly overheated by the exhaust gas, thermal stress is suppressed, so that deformation and breakage do not occur. For example, safe detection by one overheat detection sensor becomes possible.

（２）冷媒通路部材は、板状の伝熱隔壁部材に平行に複
数列の通路群を有することによって冷媒通路の断面積が
増加し、さらに液冷媒への熱伝達面積も増加するので液
状冷媒を均一に加熱し、且つ体積膨張し上昇する冷媒の
流れ抵抗を減少させ気泡ポンプ作用を強くすることがで
き、さらに発生した気泡の強い上昇流により流れに撹拌
乱流効果が発揮され冷媒の局部加熱の防止および熱交換
装置の異常温度上昇防止が図られ信頼性を向上できる。(2) Since the refrigerant passage member has a plurality of passage groups parallel to the plate-like heat transfer partition member, the cross-sectional area of the refrigerant passage increases, and the heat transfer area to the liquid refrigerant also increases, so that the liquid refrigerant To uniformly heat, and reduce the flow resistance of the rising refrigerant due to volume expansion to enhance the bubble pumping action. Further, the strong rising flow of the generated bubbles exerts the stirring turbulence effect on the flow, and the local part of the refrigerant It is possible to prevent the heating and the abnormal temperature rise of the heat exchange device, thereby improving the reliability.

（３）上昇気泡流による気泡ポンプ作用により無動力熱
搬送が可能となり、低ランニングコストの暖房ができ
る。(3) Unpowered heat transfer becomes possible by the bubble pump action by the rising bubble flow, and heating with low running cost can be performed.

（５）出口ヘッダー管も一つとなり流れ抵抗が減少し円
滑な冷媒の流れが可能となる。(5) The number of outlet header tubes is also one, and the flow resistance is reduced, so that a smooth refrigerant flow is possible.

（６）伝熱隔壁部材を介して冷媒通路部材に対向する位
置に、上下に分割した伝熱フィンを設け、この各々の伝
熱フィンに排気ガスを分流して通過させることによって
冷媒通路部材の下部から上部まで巾広く均一に加熱する
ことができる。(6) Heat transfer fins divided into upper and lower portions are provided at positions opposed to the refrigerant passage members via the heat transfer partition members, and the exhaust gas is divided and passed through each of the heat transfer fins to thereby allow the refrigerant passage members to pass through. It can be heated uniformly from the bottom to the top.

（７）冷媒通路部材が片側のみで構成が大幅に簡略化さ
れ、小型化と共に製造時の加工、組立バラツキが小さく
品質の向上、コストの低減が図れる。(7) The configuration is greatly simplified because only one side of the refrigerant passage member is used, the size is reduced, processing and assembly variations during manufacturing are small, quality is improved, and cost is reduced.

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

第１図は本発明の一実施例を示す熱交換装置の断面図、
第２図は同冷媒通路部材の断面図、第３図は第１図の熱
交換装置の分解斜視図、第４図は第１図の熱交換装置の
排気ガス通路部の断面図、第５図は従来の冷媒通路暖房
器の回路構成図、第６図は従来の熱交換器の外観斜視図
である。 ８……バーナー、10……燃焼室、11……伝熱隔壁部材、
12……高温ガス通路部材、13……排気ガス入口、14……
排気部、15……冷媒通路部材、16a、16b……通路群、22
A、22B……伝熱フィン。FIG. 1 is a cross-sectional view of a heat exchange device showing one embodiment of the present invention,
FIG. 2 is a sectional view of the refrigerant passage member, FIG. 3 is an exploded perspective view of the heat exchange device of FIG. 1, FIG. 4 is a sectional view of an exhaust gas passage portion of the heat exchange device of FIG. The figure is a circuit configuration diagram of a conventional refrigerant passage heater, and FIG. 6 is an external perspective view of a conventional heat exchanger. 8 burner, 10 combustion chamber, 11 heat transfer partition member,
12 ... High temperature gas passage member, 13 ... Exhaust gas inlet, 14 ...
Exhaust portion, 15: refrigerant passage member, 16a, 16b: passage group, 22
A, 22B ... heat transfer fins.

フロントページの続き (72)発明者 桜武 達規 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (72)発明者 山口 紘一郎 大阪府門真市大字門真1006番地 松下電 器産業株式会社内Continued on the front page (72) Inventor Tatsunori Sakuratake 1006 Kadoma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】板状の伝熱隔壁部材と、この一方の面に密
着固定した上下縦方向に伝熱隔壁部材に平行な複数列の
通路群を有する冷媒通路部材と、前記通路群に連通した
下側に設けた入口ヘッダー管および上側に設けた出口ヘ
ッダー管と、前記伝熱隔壁部材の他方の面に密着固定し
間隔を有し上下に分割した伝熱フィンと、この伝熱フィ
ンを覆い前記伝熱隔壁部材に固定した高温ガス通路部材
と、この高温ガス通路部材に連設した燃焼室と、この燃
焼室に連通するバーナと、このバーナからの燃焼排気ガ
スを前記上下に分割し間隔を有した各々の伝熱フィンに
導く高温ガス通路部材に形成した高温の排気ガス入口
と、前記伝熱フィンを通った排気ガスを排出する排気部
を備えた熱交換装置。1. A refrigerant passage member having a plate-like heat transfer partition member, a plurality of passage groups parallel to the heat transfer partition member in the vertical and vertical directions which are fixedly attached to one surface thereof, and communicating with the passage group. An inlet header pipe provided on the lower side and an outlet header pipe provided on the upper side, a heat transfer fin which is closely fixed to the other surface of the heat transfer partition member and divided into upper and lower parts with an interval, and A high-temperature gas passage member fixed to the heat transfer partition member; a combustion chamber connected to the high-temperature gas passage member; a burner communicating with the combustion chamber; and a combustion exhaust gas from the burner divided into upper and lower parts. A heat exchange apparatus comprising: a high-temperature exhaust gas inlet formed in a high-temperature gas passage member that leads to each of the heat transfer fins having an interval; and an exhaust unit that discharges exhaust gas passing through the heat transfer fin.