JPS6353368B2 - - Google Patents
Info
- Publication number
- JPS6353368B2 JPS6353368B2 JP56212468A JP21246881A JPS6353368B2 JP S6353368 B2 JPS6353368 B2 JP S6353368B2 JP 56212468 A JP56212468 A JP 56212468A JP 21246881 A JP21246881 A JP 21246881A JP S6353368 B2 JPS6353368 B2 JP S6353368B2
- Authority
- JP
- Japan
- Prior art keywords
- heater pipe
- heater
- stirling engine
- pipe
- heat
- 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
Links
- 239000007789 gas Substances 0.000 claims description 17
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000000567 combustion gas Substances 0.000 description 14
- 238000005452 bending Methods 0.000 description 5
- 238000005338 heat storage Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
- F02G1/053—Component parts or details
- F02G1/055—Heaters or coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2243/00—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2255/00—Heater tubes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Description
【発明の詳細な説明】
この発明は、スターリング機関用ヒータパイプ
に関し、特に詳述すれば、断面細長形状をなした
ヒータパイプに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heater pipe for a Stirling engine, and more particularly to a heater pipe having an elongated cross section.
外燃機関であるスターリング機関では、ヒータ
パイプ、蓄熱器およびクーラを介して、シリンダ
内の膨脹室と圧縮室とを連通させており、ヒータ
パイプは燃焼器内に配列される。ヒータパイプ内
を通る作動ガス（ヘリウム、水素ガス等）は燃焼
器内の熱を受けて一般には、約600〜700℃に昇温
させて、スターリング機関の出力安定を図つてい
る。このように機関の出力に影響するヒータパイ
プは、従来、ステンレス鋼のチユーブを用いてい
るが、この断面円形のチユーブは、燃焼ガスの流
れ抵抗が大きく、燃焼ガスとパイプ内の作動ガス
との間の熱交換効率が必ずしも良好と云えない。
このため、燃焼ガス温度を高くすることおよびパ
イプ本数を多くすることにより必要最低限の作動
ガス温度を得るようにしている。しかし、この方
法は、排熱温度が高くなりエネルギー損失が大で
あり、又、パイプ間寸法が小さく燃焼ガスの流れ
抵抗が一層大きくなり得策とは云えない。 In a Stirling engine, which is an external combustion engine, an expansion chamber and a compression chamber in a cylinder are communicated through a heater pipe, a heat storage device, and a cooler, and the heater pipe is arranged in a combustor. The working gas (helium, hydrogen gas, etc.) passing through the heater pipe receives heat in the combustor and is generally heated to about 600 to 700°C to stabilize the output of the Stirling engine. Conventionally, stainless steel tubes have been used for heater pipes that affect engine output, but these circular cross-section tubes have a large resistance to the flow of combustion gas, and this reduces the interaction between combustion gas and the working gas in the pipe. It cannot be said that the heat exchange efficiency between the two is necessarily good.
Therefore, the minimum necessary working gas temperature is obtained by increasing the combustion gas temperature and increasing the number of pipes. However, this method cannot be said to be a good idea because the exhaust heat temperature becomes high and the energy loss is large, and the pipe-to-pipe dimensions are small, which increases the flow resistance of the combustion gas.
それ故、この発明は、従来とは別の観点から、
即ち、燃焼ガスと作動ガスとのヒータパイプを介
しての熱交換効率を向上させることで、燃焼ガス
温度を最低限に抑え、総合的に熱効率を向上させ
るようにしたスターリング機関用ヒータパイプを
提供することを目的とする。 Therefore, this invention, from a different perspective than the conventional one,
In other words, we provide a heater pipe for a Stirling engine that minimizes combustion gas temperature and improves overall thermal efficiency by improving heat exchange efficiency between combustion gas and working gas through the heater pipe. The purpose is to
この発明の実施例を添付図面を参照して説明す
る。 Embodiments of the invention will be described with reference to the accompanying drawings.
第１図にダブルアクテイングタイプのスターリ
ング機関１の上部構造を示す。シリンダ２内には
膨脹室３と圧縮室４とが、往復動可能な作動ピス
トン５により区画される。膨脹室３は、隣り合う
シリンダ内の圧縮室４と、ヒータパイプ６、蓄熱
器７およびクーラ８を介して連通し、これら閉回
路中に作動ガス（ヘリウム、或いは水素ガス等）
が封入される。ヒータパイプ６は、燃焼室９内に
配される。これら構成の詳細およびその作用は公
知であるので、その説明を省略する。 FIG. 1 shows the upper structure of a double-acting type Stirling engine 1. An expansion chamber 3 and a compression chamber 4 are defined within the cylinder 2 by an actuating piston 5 that is capable of reciprocating movement. The expansion chamber 3 communicates with the compression chamber 4 in the adjacent cylinder via a heater pipe 6, a heat storage device 7, and a cooler 8, and a working gas (helium, hydrogen gas, etc.) is supplied to the expansion chamber 3 during these closed circuits.
is included. Heater pipe 6 is arranged within combustion chamber 9. Since the details of these structures and their functions are well known, their explanation will be omitted.
このようなスターリング機関１において、この
発明では、第２図に示すようなヒータパイプ６が
用いられる。ヒータパイプ６は、断面細長形状の
本体１０を有し、該本体１０内にその長手方向の
中央部に沿い複数個の作動ガスの通路１１が形成
される。このヒータパイプ６は、引抜き或いは鋳
造等により耐熱鋼で形成される。ヒータパイプ６
は、たとえば、その長手方向が約20−30mm、短長
部を約10mm、作動ガス通路を６〜8φとさせ、作
動ガス通路１１まわりの中実部が耐圧作用をなす
ようにする。このヒータパイプ６の本体１０の外
表面にフイン状のものを付設し、集熱面積を大と
させてもよい。 In such a Stirling engine 1, a heater pipe 6 as shown in FIG. 2 is used in the present invention. The heater pipe 6 has a main body 10 with an elongated cross section, and a plurality of working gas passages 11 are formed in the main body 10 along the longitudinal center thereof. This heater pipe 6 is formed of heat-resistant steel by drawing or casting. Heater pipe 6
For example, the length is about 20-30 mm, the short length is about 10 mm, and the working gas passage is 6 to 8 φ, so that the solid part around the working gas passage 11 has a pressure-resistant effect. Fin-shaped elements may be attached to the outer surface of the main body 10 of the heater pipe 6 to increase the heat collection area.
ヒータパイプ６は、シリンダ２のヘツド側マニ
ホールド１２と蓄熱器７側のマニホールド１３と
の間に配設される。両マニホールド１２，１３
は、その取付高さおよび位相を異にしているの
で、ヒータパイプ６の適所を曲げる必要がある
が、この曲げは、ヒータパイプ本体１０の長手方
向部が曲げのための折れ部となるようにする。こ
れは、曲げ作業を容易にする。さらに、このヒー
タパイプ６の曲げは、取付時、燃焼室９内の燃焼
ガスの流れ方向に、ヒータパイプ本体１０の長手
方向部が沿うようにする。このようなヒータパイ
プ６の曲げは、ヒータパイプ６と燃焼ガスとの接
触部を多くさせ、且つガスの流れ抵抗を減少させ
熱交換率の向上に寄与し、燃焼ガス熱を有効に利
用し得る。 The heater pipe 6 is arranged between the head side manifold 12 of the cylinder 2 and the manifold 13 on the heat storage device 7 side. Both manifolds 12, 13
Since the mounting heights and phases of the heater pipes 6 are different, it is necessary to bend the heater pipe 6 at an appropriate place, but this bending is done so that the longitudinal part of the heater pipe body 10 becomes the bending part. do. This facilitates bending operations. Furthermore, the heater pipe 6 is bent so that the longitudinal portion of the heater pipe main body 10 is along the flow direction of the combustion gas in the combustion chamber 9 when installed. Such bending of the heater pipe 6 increases the contact area between the heater pipe 6 and the combustion gas, reduces the gas flow resistance, contributes to improving the heat exchange rate, and makes it possible to effectively utilize the heat of the combustion gas. .
又、第３図に示すように火炎１４からの輻射熱
を有効に利用するため、火炎１４からの輻射熱の
強い部分では、矢印Ａで示す輻射熱がヒータパイ
プ６の長手方向外表面のほぼ全域に当り且つ輻射
熱の逃げのないように隣り合うヒータパイプ６間
に輻射熱の方向に対する隙間を作らないようにす
る。尚、燃焼ガスは矢印Ｂのように隣り合うヒー
タパイプ６間を通りヒータパイプ６を加熱させ
る。第３図から明らかなように、ヒータパイプ６
は火炎１４からの輻射熱および燃焼ガスの熱をそ
の全表面で受けることになり、作動ガスへの伝熱
を効果的に成すことができる。 Furthermore, in order to effectively utilize the radiant heat from the flame 14 as shown in FIG. Moreover, in order to prevent radiant heat from escaping, no gap is created between adjacent heater pipes 6 in the direction of radiant heat. Incidentally, the combustion gas passes between adjacent heater pipes 6 as shown by arrow B and heats the heater pipes 6. As is clear from Fig. 3, the heater pipe 6
receives the radiant heat from the flame 14 and the heat of the combustion gas on its entire surface, and can effectively transfer heat to the working gas.
ヒータパイプ本体１０内に複数のガス通路１１
を設けているので、該通路１１が耐圧に優れてい
るが、この効果以上に、本体１０が均一に加熱さ
れることから、その内部の通路１１内の作動ガス
に温度ムラがなく均一に昇温させ得るのでスター
リング機関の出力を安定させ得る効果を生じる。 A plurality of gas passages 11 within the heater pipe body 10
Since the passage 11 is provided with a Since it can be heated, it has the effect of stabilizing the output of the Stirling engine.
以上から明らかなように、この発明によれば、
スターリング機関のヒータパイプを断面細長状の
本体内に複数の作動ガス通路を設ける構成である
ので、本体をその長手方向部を折れ部とする曲げ
により、燃焼ガスに対するヒータパイプの濡れ面
積を大とさせ、熱交換率を向上できる。さらに、
ヒータパイプを耐圧特性に優れ、作動ガス通路内
の作動ガスを均一に昇温させ、スターリング機関
の出力を安定させる。又、燃焼ガスと作動ガスの
熱交換率の向上は、燃焼ガス温度を低くさせ得る
ので、総合的なエネルギー損失を最小限に抑える
ことができる。 As is clear from the above, according to this invention,
Since the heater pipe of a Stirling engine has a structure in which multiple working gas passages are provided in the main body, which has an elongated cross section, the wetted area of the heater pipe against the combustion gas can be increased by bending the main body with the longitudinal part as the bent part. can improve the heat exchange rate. moreover,
The heater pipe has excellent pressure resistance characteristics, uniformly raises the temperature of the working gas in the working gas passage, and stabilizes the output of the Stirling engine. Also, improving the heat exchange rate between the combustion gas and the working gas can lower the combustion gas temperature, thereby minimizing the overall energy loss.
第１図はスターリング機関の上部構造を示す部
分断面図、第２図はヒータパイプの断面図、第３
図は火炎中心に対するヒータパイプの取付位置を
示す説明図である。
図中、１……スターリング機関、２……シリン
ダ、３……膨脹室、４……圧縮室、６……ヒータ
パイプ、９……燃焼室、１０……本体、１１……
作動ガス通路。
Figure 1 is a partial sectional view showing the upper structure of the Stirling engine, Figure 2 is a sectional view of the heater pipe, and Figure 3 is a sectional view of the upper structure of the Stirling engine.
The figure is an explanatory diagram showing the mounting position of the heater pipe with respect to the flame center. In the figure, 1... Stirling engine, 2... Cylinder, 3... Expansion chamber, 4... Compression chamber, 6... Heater pipe, 9... Combustion chamber, 10... Main body, 11...
Working gas passage.
Claims (1)
させ且つ燃焼室内に配されるヒータパイプであつ
て、前記ヒータパイプが断面細長形状をなし且つ
その内部に該細長形状に沿つて複数個の作動ガス
通路が設けられ、その本体の長手方向外表面で火
炎の輻射熱を受けるように且つ輻射熱の方向に隙
間を作らないよう並設されていることを特徴とす
るスターリング機関用ヒータパイプ。1 A heater pipe that connects an expansion chamber and a compression chamber of a Stirling engine and is arranged in a combustion chamber, wherein the heater pipe has an elongated cross section and a plurality of working gases are arranged inside the heater pipe along the elongated shape. A heater pipe for a Stirling engine, characterized in that passages are provided and the heater pipes are arranged side by side so as to receive the radiant heat of the flame on the outer surface in the longitudinal direction of the main body, and so as not to create a gap in the direction of the radiant heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21246881A JPS58117336A (en) | 1981-12-30 | 1981-12-30 | Heater pipe for stirling engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21246881A JPS58117336A (en) | 1981-12-30 | 1981-12-30 | Heater pipe for stirling engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58117336A JPS58117336A (en) | 1983-07-12 |
| JPS6353368B2 true JPS6353368B2 (en) | 1988-10-24 |
Family
ID=16623138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21246881A Granted JPS58117336A (en) | 1981-12-30 | 1981-12-30 | Heater pipe for stirling engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58117336A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6146451A (en) * | 1984-08-11 | 1986-03-06 | Toshiba Corp | Stirling engine |
| KR101937551B1 (en) * | 2014-06-20 | 2019-01-10 | 얀마 가부시키가이샤 | Radiant heat recovery heater, and stirling engine and combustion furnace using radiant heat recovery heater |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS477975U (en) * | 1971-02-17 | 1972-09-29 | ||
| JPS5311898U (en) * | 1976-07-13 | 1978-01-31 |
-
1981
- 1981-12-30 JP JP21246881A patent/JPS58117336A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS477975U (en) * | 1971-02-17 | 1972-09-29 | ||
| JPS5311898U (en) * | 1976-07-13 | 1978-01-31 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58117336A (en) | 1983-07-12 |
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