JP4084264B2 - Heat exchange partition - Google Patents

Heat exchange partition Download PDF

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JP4084264B2
JP4084264B2 JP2003293490A JP2003293490A JP4084264B2 JP 4084264 B2 JP4084264 B2 JP 4084264B2 JP 2003293490 A JP2003293490 A JP 2003293490A JP 2003293490 A JP2003293490 A JP 2003293490A JP 4084264 B2 JP4084264 B2 JP 4084264B2
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coordinate axis
substrate
rib
parallel
heat exchange
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JP2005061333A (en
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友美 中江
賢一郎 武石
正昭 松浦
剛 北村
敦 森脇
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Mitsubishi Heavy Industries Ltd
Society of Japanese Aerospace Companies
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Mitsubishi Heavy Industries Ltd
Society of Japanese Aerospace Companies
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Priority to JP2003293490A priority Critical patent/JP4084264B2/en
Priority to CA2476803A priority patent/CA2476803C/en
Priority to US10/912,565 priority patent/US7694522B2/en
Priority to EP04103820A priority patent/EP1508746B1/en
Publication of JP2005061333A publication Critical patent/JP2005061333A/en
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Description

本発明は、熱交換用の隔壁の構造に関する。   The present invention relates to a structure of a partition wall for heat exchange.

ガスタービンは、空気を圧縮する圧縮機と、その圧縮機によって圧縮された空気と燃料とを燃焼して高温の燃焼ガスを作る燃焼器と、その燃焼器から取り込まれた燃焼ガスの膨張により駆動力を得るタービンとを備えている。燃焼器は高温となるため、冷却を施される。効率の良い冷却手段が望まれている。   A gas turbine is driven by a compressor that compresses air, a combustor that burns air and fuel compressed by the compressor to produce a high-temperature combustion gas, and expansion of the combustion gas taken from the combustor. And a turbine for obtaining power. Since the combustor is hot, it is cooled. An efficient cooling means is desired.

自身の内側に燃焼室を形成するライナと、ライナの外周側に位置する外壁と、ライナと外壁との間の間隙に形成され、圧縮機で昇圧された空気を燃焼室に導く空気流路と、を有するガスタービンにおいて、ライナの外周側面には、周方向に伸びる凸部を形成するリブと、長手方向に伸び、リブより高い凸部を形成するフィンとを備えたことを特徴とするガスタービンが知られている(特許文献1参照)。   A liner that forms a combustion chamber inside itself, an outer wall that is positioned on the outer periphery of the liner, and an air flow path that is formed in a gap between the liner and the outer wall and that guides the air pressurized by the compressor to the combustion chamber In the gas turbine, the gas is characterized in that the outer peripheral side surface of the liner includes a rib that forms a convex portion extending in the circumferential direction and a fin that extends in the longitudinal direction and forms a convex portion higher than the rib. A turbine is known (see Patent Document 1).

特開2000−88252号公報JP 2000-88252 A

本発明の目的は、熱交換の効率が高く、かつ製造が容易な熱交換隔壁を提供することである。   An object of the present invention is to provide a heat exchange partition that has high heat exchange efficiency and is easy to manufacture.

以下に、[発明を実施するための最良の形態]で使用される番号を括弧付きで用いて、課題を解決するための手段を説明する。これらの番号は、[特許請求の範囲]における記載と、[発明を実施するための最良の形態]における記載との対応関係を明らかにするために付加されたものである。それらの番号を、[特許請求の範囲]に記載されている発明の技術的範囲の解釈に用いてはならない。   In the following, means for solving the problem will be described using the numbers used in [Best Mode for Carrying Out the Invention] in parentheses. These numbers are added to clarify the correspondence between the description in [Claims] and the description in [Best Mode for Carrying Out the Invention]. Those numbers should not be used to interpret the technical scope of the invention described in [Claims].

本発明による熱交換隔壁(1)は、基板(24)と、基板(24)の表面に設けられた複数の丸ピン(22)と、表面に設けられた複数の第1リブ(23−1)と、表面に設けられた複数の第2リブ(23−2)とを具備している。
丸ピン(22)は、基板(24)の表面に平行な第1座標軸(U)の方向と、基板(24)の表面に平行であり第1座標軸(U)に対して斜交する第2座標軸(V)の方向とに周期的に配置されている。
第1リブ(23−1)は第1座標軸(U)の方向に隣りあう2本の丸ピン(22)の中間に配置されている。
第1リブ(23−1)の表面に水平な断面は、第1座標軸(U)に平行な第1辺と、第1座標軸(U)と第2座標軸(V)との等分線に平行な第2辺とを有する平行四辺形である。
第2リブ(23−2)は第2座標軸(V)の方向に隣りあう2本の丸ピン(22)の中間に配置されている。
第2リブ(23−2)の表面に水平な断面は、第2座標軸(V)に平行な第1辺と、第1座標軸(U)と第2座標軸(V)との等分線に平行な第2辺とを有する平行四辺形である。
The heat exchange partition wall (1) according to the present invention includes a substrate (24), a plurality of round pins (22) provided on the surface of the substrate (24), and a plurality of first ribs (23-1) provided on the surface. ) And a plurality of second ribs (23-2) provided on the surface.
The round pin (22) is in the direction of the first coordinate axis (U) parallel to the surface of the substrate (24) and the second parallel to the surface of the substrate (24) and oblique to the first coordinate axis (U). They are periodically arranged in the direction of the coordinate axis (V).
The 1st rib (23-1) is arrange | positioned in the middle of the two round pins (22) adjacent to the direction of a 1st coordinate axis (U).
The cross section horizontal to the surface of the first rib (23-1) is parallel to the first side parallel to the first coordinate axis (U) and the bisector of the first coordinate axis (U) and the second coordinate axis (V). A parallelogram having a second side.
The second rib (23-2) is arranged in the middle of two round pins (22) adjacent in the direction of the second coordinate axis (V).
The cross section horizontal to the surface of the second rib (23-2) is parallel to the first side parallel to the second coordinate axis (V), and the equal line between the first coordinate axis (U) and the second coordinate axis (V). A parallelogram having a second side.

本発明によれば、熱交換の効率が高く、かつ製造が容易な熱交換隔壁が提供される。   ADVANTAGE OF THE INVENTION According to this invention, the efficiency of heat exchange is high and the heat exchange partition which manufacture is easy is provided.

以下、図面を参照しながら、本発明を実施するための最良の形態について説明する。本発明における熱交換隔壁は、航空機用ガスタービンの燃焼器の内筒を冷却するために好適に使用される。   The best mode for carrying out the present invention will be described below with reference to the drawings. The heat exchange partition in the present invention is suitably used for cooling the inner cylinder of the combustor of the aircraft gas turbine.

図1を参照して、燃焼器2は、外筒4と内筒6とを具備している。外筒4には、図示しない圧縮機が吐出する圧縮空気11を取り入れる空気入口9が設けられている。   With reference to FIG. 1, the combustor 2 includes an outer cylinder 4 and an inner cylinder 6. The outer cylinder 4 is provided with an air inlet 9 for taking in compressed air 11 discharged from a compressor (not shown).

内筒6の外壁はシェル12によって形成されている。内筒6には、内筒6の内部に燃料を噴射する燃料ノズル8が設置され、内筒6の内部に空気を導入する空気入口10が設けられている。   The outer wall of the inner cylinder 6 is formed by a shell 12. The inner cylinder 6 is provided with a fuel nozzle 8 that injects fuel into the inner cylinder 6 and an air inlet 10 that introduces air into the inner cylinder 6.

シェル12の内側は、複数のパネル14によって覆われている。パネル14によって囲まれた空間は、燃料ガスと空気とが混合され燃焼する燃焼室16である。パネル14はシェル12との間に隙間が空くようにシェル12に設置されている。その隙間は、圧縮空気11が流入する冷却空気入口17に連続している。又は、その隙間は、シェル12にあけられた冷却空気用穴に連続している。燃焼室18の下流側は、タービンの入口に接続されている。パネル14は、本発明による熱交換隔壁1によって形成されている。   The inside of the shell 12 is covered with a plurality of panels 14. A space surrounded by the panel 14 is a combustion chamber 16 in which fuel gas and air are mixed and burned. The panel 14 is installed in the shell 12 such that a gap is left between the panel 14 and the shell 12. The gap is continuous with the cooling air inlet 17 into which the compressed air 11 flows. Alternatively, the gap is continuous with a cooling air hole formed in the shell 12. The downstream side of the combustion chamber 18 is connected to the turbine inlet. The panel 14 is formed by the heat exchange partition 1 according to the present invention.

図2Aを参照すると、熱交換隔壁1が備える基板24の表面をxy平面として、熱交換隔壁1をz軸の正方向から見た形状が示されている。熱交換隔壁1は、冷却空気入口17がx軸の負方向になる向きで配置される。すなわち、冷却空気18の流れは、平均してx軸の負方向から正方向に向う。   Referring to FIG. 2A, the shape of the heat exchange partition wall 1 as viewed from the positive direction of the z-axis is shown with the surface of the substrate 24 included in the heat exchange partition wall 1 as the xy plane. The heat exchange partition 1 is arranged in such a direction that the cooling air inlet 17 is in the negative direction of the x axis. That is, the flow of the cooling air 18 on the average goes from the negative direction of the x axis to the positive direction.

基板24には、複数の丸ピン22が設けられている。複数の丸ピン22は、基板24の表面を底面とする同一の円筒形状をしている。丸ピン22は、基板24の表面に平行な第1座標軸Uの方向にピッチPで周期的に配列され、基板24の表面に平行であり第1座標軸Uに対して斜交する第2座標軸Vの方向にピッチPで周期的に配列されている。 A plurality of round pins 22 are provided on the substrate 24. The plurality of round pins 22 have the same cylindrical shape with the surface of the substrate 24 as the bottom surface. Round pins 22 are periodically arranged at a pitch P 1 in the direction of the first coordinate axis U parallel to the surface of the substrate 24, a second coordinate axis that obliquely intersects the first axis U and parallel to the surface of the substrate 24 They are periodically arranged at a pitch P2 in the V direction.

熱交換隔壁1は、第1座標軸Uと第2座標軸Vとが交わる角を2等分する線が冷却空気18の流れの平均方向と直交する方向に設置されることが好ましい。   The heat exchange partition 1 is preferably installed in a direction in which a line that bisects the angle at which the first coordinate axis U and the second coordinate axis V intersect is perpendicular to the average direction of the flow of the cooling air 18.

第1座標軸Uの方向に隣接する2本の丸ピンの中間には、第1リブ23−1が設けられている。基板24の表面に水平な第1リブ23−1の断面は、第1座標軸Uに平行な辺と、第1座標軸Uと第2座標軸とに対して同じ角度で交わる等分線(図2Aにおけるy軸に平行な線)に平行な辺とを有する平行四辺形である。   A first rib 23-1 is provided between two round pins adjacent to each other in the direction of the first coordinate axis U. The cross section of the first rib 23-1 that is horizontal to the surface of the substrate 24 has a side parallel to the first coordinate axis U and an equipartition line that intersects the first coordinate axis U and the second coordinate axis at the same angle (in FIG. 2A). a parallelogram having sides parallel to the y-axis).

第2座標軸Vの方向に隣接する2本の丸ピンの中間には、第2リブ23−2が設けられている。基板24の表面に水平な第2リブ23−2の断面は、第2座標軸Vに平行な辺と、第1座標軸Uと第2座標軸とに対して同じ角度で交わる等分線(図2Aにおけるy軸に平行な線)に平行な辺とを有する平行四辺形である。   A second rib 23-2 is provided in the middle of two round pins adjacent in the direction of the second coordinate axis V. The cross section of the second rib 23-2 that is horizontal to the surface of the substrate 24 has a side parallel to the second coordinate axis V and an equipartition line that intersects the first coordinate axis U and the second coordinate axis at the same angle (in FIG. 2A). a parallelogram having sides parallel to the y-axis).

図2Aに示された熱交換隔壁1をA−A´面で切断してx軸の負方向から見た断面図が図2Bに示されている。基板24の丸ピン22が配置されている側と反対側の面は、燃焼室16に面している。基板24に垂直方向の丸ピン22の高さH1は、基板24の丸ピン22が配置されている側の表面とシェル12との間の距離と比較して同一か、わずかに短い。   FIG. 2B shows a cross-sectional view of the heat exchange partition wall 1 shown in FIG. 2A cut along the AA ′ plane and viewed from the negative direction of the x-axis. The surface of the substrate 24 opposite to the side on which the round pins 22 are disposed faces the combustion chamber 16. The height H1 of the round pins 22 perpendicular to the substrate 24 is the same as or slightly shorter than the distance between the surface of the substrate 24 on the side where the round pins 22 are arranged and the shell 12.

図3は、基板24に垂直な方向から見たときの第1リブ23−1と第2リブ23−2との断面形状を示している。第1リブ23−1と第2リブ23−2との断面形状を形成するすべての辺は、第1座標軸Uに平行な複数の第1削り線31、第2座標軸Vに平行な複数の第2削り線32、または第1座標軸Uと第2座標軸Vとに等しい角度で交わる第3削り線33のいずれかの一部である。   FIG. 3 shows the cross-sectional shapes of the first rib 23-1 and the second rib 23-2 when viewed from the direction perpendicular to the substrate 24. All sides forming the cross-sectional shape of the first rib 23-1 and the second rib 23-2 are a plurality of first shaving lines 31 parallel to the first coordinate axis U and a plurality of first parallels to the second coordinate axis V. It is a part of either the second shaving line 32 or the third shaving line 33 that intersects the first coordinate axis U and the second coordinate axis V at an equal angle.

こうした形状のリブを備えた熱交換隔壁1において、設計するための性能試験に使用するための試験体は、次のように製造される。
まず、基板24にフライス削りを施して、第1リブ23−1と第2リブ23−2を削り出す。
次に、丸ピン22を半田づけなどの方法により基板24に付ける。
In the heat exchange partition wall 1 having the ribs having such a shape, a test body for use in a performance test for designing is manufactured as follows.
First, the substrate 24 is milled to cut out the first rib 23-1 and the second rib 23-2.
Next, the round pins 22 are attached to the substrate 24 by a method such as soldering.

第1リブ23−1と第2リブ23−2が図3に示される配置をしていることにより、フライス削りは第1削り線31と第2削り線32と第3削り線33を端部として行えばよい。こうした配置のリブを備えた試験体は製造が容易である。そのため、ガスタービンに適用する熱交換隔壁1の設計を最適なものにするための試験を行うことが容易となる。   Since the first rib 23-1 and the second rib 23-2 are arranged as shown in FIG. 3, milling is performed at the end of the first shaving line 31, the second shaving line 32, and the third shaving line 33. It can be done as A specimen having such an arrangement of ribs is easy to manufacture. Therefore, it becomes easy to perform a test for optimizing the design of the heat exchange partition wall 1 applied to the gas turbine.

燃焼器2を備えるタービンが運転されるとき、燃焼室16には燃料ノズル8により燃料が供給され、空気入口10から圧縮空気11が供給される。燃料と圧縮空気11とは燃焼室16の内部で混合され、図示しない点火装置によって点火されて燃焼する。圧縮空気11は冷却空気入口17からシェル12とパネル14との隙間に入り、冷却空気18としてその隙間を流れる。   When the turbine including the combustor 2 is operated, fuel is supplied to the combustion chamber 16 by the fuel nozzle 8, and compressed air 11 is supplied from the air inlet 10. The fuel and the compressed air 11 are mixed inside the combustion chamber 16 and are ignited and burned by an ignition device (not shown). The compressed air 11 enters the gap between the shell 12 and the panel 14 from the cooling air inlet 17 and flows through the gap as the cooling air 18.

燃焼室16における燃焼によって発生した熱の一部は、基板24に伝達する。基板24に伝達した熱の一部は、丸ピン22に伝達する。冷却空気18は、シェル12と基板24の間の空間を流れる。冷却空気18は、丸ピン22の表面及び基板24の丸ピンを有する側の面から熱を奪う。   Part of the heat generated by the combustion in the combustion chamber 16 is transmitted to the substrate 24. Part of the heat transferred to the substrate 24 is transferred to the round pins 22. The cooling air 18 flows through the space between the shell 12 and the substrate 24. The cooling air 18 removes heat from the surface of the round pin 22 and the surface of the substrate 24 on the side having the round pin.

リブ23は、冷却空気18の流れを攪乱して乱流31を発生する。乱流31が発生することにより、冷却空気18は丸ピン22の表面及び基板24の丸ピンを有する側の面からより効率的に熱を奪う。   The rib 23 disturbs the flow of the cooling air 18 and generates a turbulent flow 31. By generating the turbulent flow 31, the cooling air 18 more efficiently removes heat from the surface of the round pin 22 and the surface of the substrate 24 on the side having the round pin.

こうした熱交換隔壁1により、熱交換隔壁1の構造を有するパネル14の温度上昇が抑制され、燃焼室16からシェル12に伝わる熱が効果的に抑制される。そのため、パネル14及びシェル12の耐久性が向上する。   With such a heat exchange partition wall 1, the temperature rise of the panel 14 having the structure of the heat exchange partition wall 1 is suppressed, and the heat transmitted from the combustion chamber 16 to the shell 12 is effectively suppressed. Therefore, the durability of the panel 14 and the shell 12 is improved.

ガスタービンの燃焼器の構成を示す。The structure of the combustor of a gas turbine is shown. 熱交換隔壁の実施方法を示す。The implementation method of a heat exchange partition is shown. 熱交換隔壁の実施方法を示す。The implementation method of a heat exchange partition is shown. リブの形状を説明するための図である。It is a figure for demonstrating the shape of a rib.

符号の説明Explanation of symbols

1…熱交換隔壁
2…燃焼器
4…外筒
6…内筒
8…燃料ノズル
9…空気入口
10…空気入口
11…圧縮空気
12…シェル
14…パネル
16…燃焼室
17…冷却空気入口
18…冷却空気
22…丸ピン
23−1…第1リブ
23−2…第2リブ
24…基板
31…第1削り線
32…第2削り線
33…第3削り線
DESCRIPTION OF SYMBOLS 1 ... Heat exchange partition 2 ... Combustor 4 ... Outer cylinder 6 ... Inner cylinder 8 ... Fuel nozzle 9 ... Air inlet 10 ... Air inlet 11 ... Compressed air 12 ... Shell 14 ... Panel 16 ... Combustion chamber 17 ... Cooling air inlet 18 ... Cooling air 22 ... round pin 23-1 ... first rib 23-2 ... second rib 24 ... substrate 31 ... first scraping line 32 ... second scraping line 33 ... third scraping line

Claims (1)

基板を削ることにより前記基板の表面に複数の第1リブを削り出す第1ステップと、前記第1リブの前記表面に水平な断面は、前記基板の表面に平行な第1座標軸に平行な第1辺と、前記第1座標軸と前記基板の表面に平行であり前記第1座標軸に対して斜交する第2座標軸との等分線に平行な第2辺とを有する平行四辺形であり、
前記基板を削ることにより前記基板の表面に複数の第2リブを削り出す第2ステップと、前記第2リブの前記表面に水平な断面は、前記第2座標軸に平行な第1辺と、前記第1座標軸と前記第2座標軸との前記等分線に平行な第2辺とを有する平行四辺形であり、
前記第1ステップにおいて前記第1リブの前記第2辺は削り線に沿って削り出され、
前記第2ステップにおいて前記第2リブの前記第2辺は前記削り線に沿って削り出され、
更に、前記基板の表面に、複数の丸ピンを、前記基板の表面に平行な第1座標軸の方向に周期的で、且つ、前記基板の表面に平行であり前記第1座標軸に対して斜交する第2座標軸の方向にも周期的な位置に配置されるように取り付けるステップ
とを具備し、
前記第1リブは前記第1座標軸の方向に隣りあう2本の前記丸ピンの中間に配置され、
前記第2リブは前記第2座標軸の方向に隣りあう2本の前記丸ピンの中間に配置される
熱交換隔壁の製造方法。
A first step of shaving a plurality of first ribs on the surface of the substrate by shaving the substrate; and a cross section parallel to the surface of the first rib parallel to a first coordinate axis parallel to the surface of the substrate. A parallelogram having one side and a second side parallel to the first coordinate axis and a second coordinate axis parallel to the surface of the substrate and oblique to the first coordinate axis;
A second step of shaving a plurality of second ribs on the surface of the substrate by shaving the substrate; a cross section horizontal to the surface of the second ribs; a first side parallel to the second coordinate axis; A parallelogram having a second side parallel to the bisector of the first coordinate axis and the second coordinate axis;
In the first step, the second side of the first rib is cut out along a cutting line;
In the second step, the second side of the second rib is cut out along the cutting line,
Further, a plurality of round pins are provided on the surface of the substrate periodically in a direction of a first coordinate axis parallel to the surface of the substrate, and parallel to the surface of the substrate and oblique to the first coordinate axis. And attaching to be arranged at a periodic position in the direction of the second coordinate axis.
The first rib is arranged between two round pins adjacent to each other in the direction of the first coordinate axis,
The method of manufacturing a heat exchange partition, wherein the second rib is arranged between two round pins adjacent to each other in the direction of the second coordinate axis.
JP2003293490A 2003-08-14 2003-08-14 Heat exchange partition Expired - Lifetime JP4084264B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2003293490A JP4084264B2 (en) 2003-08-14 2003-08-14 Heat exchange partition
CA2476803A CA2476803C (en) 2003-08-14 2004-08-06 Heat exchanging wall, gas turbine using the same, and flying body with gas turbine engine
US10/912,565 US7694522B2 (en) 2003-08-14 2004-08-06 Heat exchanging wall, gas turbine using the same, and flying body with gas turbine engine
EP04103820A EP1508746B1 (en) 2003-08-14 2004-08-09 Heat exchanging wall, gas turbine using the same, and flying body with such a wall

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010021358A1 (en) 2008-08-22 2010-02-25 三菱重工業株式会社 Heat exchanging partition wall

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JP5455962B2 (en) * 2011-04-06 2014-03-26 三菱重工業株式会社 Manufacturing method of cooling structure
JP6041299B2 (en) * 2012-11-15 2016-12-07 三菱日立パワーシステムズ株式会社 Gas turbine combustor and gas turbine equipped with the combustor
CN106164444A (en) 2014-04-25 2016-11-23 三菱日立电力系统株式会社 Gas turbine combustor and the combustion gas turbine possessing this burner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010021358A1 (en) 2008-08-22 2010-02-25 三菱重工業株式会社 Heat exchanging partition wall
US8955333B2 (en) 2008-08-22 2015-02-17 Mitsubishi Heavy Industries, Ltd. Heat exchange bulkhead

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