JP5173887B2 - Sealing material - Google Patents

Sealing material Download PDF

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JP5173887B2
JP5173887B2 JP2009042496A JP2009042496A JP5173887B2 JP 5173887 B2 JP5173887 B2 JP 5173887B2 JP 2009042496 A JP2009042496 A JP 2009042496A JP 2009042496 A JP2009042496 A JP 2009042496A JP 5173887 B2 JP5173887 B2 JP 5173887B2
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plate
slit
sealing material
plate member
blade
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JP2010196797A (en
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正樹 種池
郁生 岡田
泰治 鳥越
修 上田
嘉夫 福井
大助 吉田
泰弘 小代
信広 國武
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Mitsubishi Heavy Industries Ltd
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  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Description

本発明は、動翼の先端部と分割環との間や、静翼の内側シュラウドと動翼のプラットフォームとの間などのガスタービン用高温ハニカムシールに適用されるシール材の構造に関する。   The present invention relates to a structure of a sealing material applied to a high-temperature honeycomb seal for a gas turbine, such as between a tip portion of a moving blade and a split ring or between an inner shroud of a stationary blade and a platform of the moving blade.

従来より、ガスタービンにおいては、動翼の先端部と分割環との間や、静翼の内側シュラウドと動翼のプラットフォームとの間などに、もれ空気に対して抵抗を与えるガスタービン用高温ハニカムシールが配置されており、このようなハニカムシールを分割環や，静翼に貼りつけ，動翼の先端部等からガスが漏れないようにしている。
このハニカムシールとしては、特許文献１に示されるようなセル状構造物が採用されている。例えば、図９（Ａ）及び（Ｂ）に符号１で示されるハニカムシール材は、基材２の上面に熱処理したろう材３により固定されるハニカム構造体であって、このようなハニカム構造体によって、動翼の先端部等が接触したとしても、ハニカムシール材１が削れることで，分割環や静翼の損傷を防ぐようにしている。 Conventionally, in a gas turbine, a high temperature for a gas turbine that provides resistance to leakage air between the tip of the rotor blade and the split ring, or between the inner shroud of the stationary blade and the platform of the rotor blade. A honeycomb seal is disposed, and such a honeycomb seal is attached to a split ring or a stationary blade so that gas does not leak from the tip of the moving blade.
As this honeycomb seal, a cellular structure as shown in Patent Document 1 is adopted. For example, a honeycomb sealing material denoted by reference numeral 1 in FIGS. 9A and 9B is a honeycomb structure fixed to the upper surface of the base material 2 by a heat-treated brazing material 3, and such a honeycomb structure Thus, even if the tip of the moving blade comes into contact, the honeycomb sealing material 1 is scraped to prevent damage to the split ring and the stationary blade.

具体的には、ハニカムシール材１は、図１０の平面図に示されるように構成されている。該ハニカムシール材１は、プレス加工により凹凸が交互に形成された薄板材料（板材）４を、凸部同士が密着するようにスポット溶接で仮付けすることで六角形ハニカム形状を形成し、該ハニカムシール材１を、上述した図９に示されるように、ろう材３を介して基材２上に貼り付けることで、シール構造体を構成するものである。
このとき、該ハニカムシール材１と基材２との間のろう材３が、薄板材料４が合わさった隙間（符号５）部分にも毛細管現象により侵入することで，全体の剛性が確保されるようになっている。
なお、図１１に示される平面図は、動翼Ｆがハニカムシール材１上を矢印Ａ方向に横断する様子が示されたものであり、動翼Ｆの先端部等が該ハニカムシール材１に接触したとしても、ハニカムシール材１側が削れることで，該静翼Ｆの損傷を防ぐものである。 Specifically, the honeycomb sealing material 1 is configured as shown in the plan view of FIG. The honeycomb sealing material 1 forms a hexagonal honeycomb shape by spot-welding the thin plate material (plate material) 4 in which irregularities are alternately formed by pressing so that the convex portions are in close contact with each other, As shown in FIG. 9 described above, the honeycomb sealing material 1 is pasted onto the base material 2 via the brazing material 3 to constitute a sealing structure.
At this time, the brazing material 3 between the honeycomb sealing material 1 and the base material 2 penetrates into the gap (reference numeral 5) where the thin plate material 4 is joined by capillarity, thereby ensuring the overall rigidity. It is like that.
Note that the plan view shown in FIG. 11 shows a state in which the moving blade F crosses the honeycomb sealing material 1 in the direction of arrow A, and the tip of the moving blade F and the like are attached to the honeycomb sealing material 1. Even if they come into contact, the honeycomb sealing material 1 side is scraped to prevent damage to the stationary blade F.

特許第４０８３００９号公報Japanese Patent No. 4083009

ところで、上記のようなハニカムシール材１では、多数の薄板材料４を貼り合わせた六角形状のハニカム構造であり、六角形の辺が二重に重なった箇所は、二重であるが故に固いのみならず、基材２上にろう付けする際に、二重の薄板材料４の隙間５に沿うように、毛細管現象でろう材３が吸い上げられることで、全体の剛性が確保されるという効果がある。しかしながら、このような高い剛性ために、薄板材料４の被切削性が低下し，動翼Ｆと接触した際に，動翼Ｆの方が削れてしまうという問題があった。   By the way, the honeycomb sealing material 1 as described above has a hexagonal honeycomb structure in which a large number of thin plate materials 4 are bonded together, and the portion where the hexagonal sides overlap doubly is only hard because it is double. Instead, when brazing on the base material 2, the brazing material 3 is sucked up by the capillary phenomenon so as to follow the gap 5 of the double thin plate material 4, thereby ensuring the overall rigidity. is there. However, due to such high rigidity, the machinability of the thin plate material 4 is reduced, and when the blade F comes into contact with the blade F, there is a problem that the blade F is scraped off.

この発明は、上述した事情に鑑みてなされたものであって、多数の薄板材料（板材）４を貼り合わせる際に使用されるろう材３を、該薄板材料４の接触部分全体に至らせず、部分的な配置とすることで、動翼Ｆと接触する箇所の薄板材料４の被切削性を確保し、動翼Ｆと接触した際に、該動翼Ｆが損傷することを防止できるシール材の提供を目的とするものである。   The present invention has been made in view of the above-described circumstances, and the brazing material 3 used when a large number of thin plate materials (plate materials) 4 are bonded together does not reach the entire contact portion of the thin plate material 4. By providing a partial arrangement, a seal capable of ensuring the machinability of the thin plate material 4 at the portion in contact with the blade F and preventing the blade F from being damaged when in contact with the blade F. The purpose is to provide materials.

上記課題を解決するために、この発明は以下の手段を提案している。すなわち、本発明では、複数の板材を互いに厚さ方向に交差するように配置して構成されたシール材であって、互いに交差する板材の少なくとも一方に、他方の板材が嵌め込まれるスリットが設けられ、このスリットは、他方の板材が密に嵌め込まれる狭小部と、この狭小部より幅広く形成されて、他方の板材との間に隙間を有する拡大部とを形成し、前記互いに交差する板材は、全体として複数方向に同一形状を連続させた平面形をなし、前記一方側の板材に形成されるスリットを、上部に拡大部を有しかつ下部に狭小部を有するテーパー形状に形成したことを特徴とする。 In order to solve the above problems, the present invention proposes the following means. That is, in the present invention, a sealing material is configured by arranging a plurality of plate members so as to cross each other in the thickness direction, and at least one of the plate members crossing each other is provided with a slit into which the other plate member is fitted. The slit is formed with a narrow portion into which the other plate material is closely fitted, and an enlarged portion formed wider than the narrow portion and having a gap between the other plate material, it overall name a planform which is continuous with the same shape in a plurality of directions, in that a slit formed in the plate material of the one side, and formed in a tapered shape having a narrow portion at the bottom and having an enlarged portion at the top Features.

また、本発明のシール材では、前記シール材を前記狭小部の側で基材にろう付けしたことを特徴とする。   In the sealing material of the present invention, the sealing material is brazed to the base material on the narrow portion side.

本発明によれば、互いに交差する板材の少なくとも一方に、他方の板材が嵌め込まれるスリットを設け、該スリットを、他方の板材が密に嵌め込まれる狭小部と、該狭小部より幅広に形成されて他方の板材が嵌め込まれた場合に該他方の板材との間に隙間を形成する拡大部と、を有する構成としたので、前記板材を基材に固定する場合に、毛細管現象により、他方の板材が密に嵌め込まれるスリットの狭小部にろう材が浸透し、該狭小部にて、一方と他方の双方の板材が固定されることになる。
これにより、他方の板材との間に隙間を有する拡大部においては、双方の板材の動きが規制されず、その結果、例えば、動翼の先端部と分割環との間に、本発明のシール材を設置した場合において、動翼と接触する箇所の該板材の被切削性を確保することができ、動翼と接触した場合であっても、該動翼が損傷することを防止できる効果が得られる。 According to the present invention, a slit into which the other plate member is fitted is provided in at least one of the plate members that intersect with each other, and the slit is formed to be narrower than the other plate member, and to be wider than the narrow portion. When the other plate member is fitted, an enlarged portion that forms a gap with the other plate member is provided. Therefore, when the plate member is fixed to the base material, the other plate member is caused by capillary action. The brazing material penetrates into the narrow portion of the slit in which is tightly fitted, and one and the other plate materials are fixed in the narrow portion.
As a result, in the enlarged portion having a gap with the other plate material, the movement of both plate materials is not restricted. As a result, for example, the seal of the present invention is provided between the tip of the moving blade and the split ring. In the case where the material is installed, the machinability of the plate material at the location where the blade comes into contact with the blade can be ensured, and even when the blade is in contact with the blade, the blade can be prevented from being damaged. can get.

本発明の実施例を示すシール材の斜視図。The perspective view of the sealing material which shows the Example of this invention. 実施例のシール材と動翼との位置関係を示す平面図。The top view which shows the positional relationship of the sealing material of an Example, and a moving blade. 本発明の参考例を示すシール材の斜視図。The perspective view of the sealing material which shows the reference example of this invention. 本発明が適用されたシール材の具体例１。Specific example 1 of the sealing material to which this invention was applied. 本発明が適用されたシール材の具体例２。Specific example 2 of the sealing material to which this invention was applied. 本発明が適用されたシール材の具体例３。Specific Example 3 of the sealing material to which the present invention is applied. 本発明が適用されたシール材の具体例４。Specific example 4 of the sealing material to which this invention was applied. 図４〜図７のシール材に本発明を適用する場合の実例を示す斜視図。The perspective view which shows the example in the case of applying this invention to the sealing material of FIGS. （Ａ）シール材と基材との位置関係を示す斜視図、（Ｂ）上記（Ａ）の正面図。(A) The perspective view which shows the positional relationship of a sealing material and a base material, (B) The front view of said (A). 従来のシール材を示す平面図。The top view which shows the conventional sealing material. シール材上を移動する動翼を示す平面図。The top view which shows the moving blade which moves on a sealing material.

本発明の実施例について図１及び図２を参照して説明する。図１に符号１０で示すものは実施例に係わるシール材であって、互いに厚さ方向に交差するように配置された複数の板材１１・１２によって、全体として平面形に構成されている。 About the embodiment of the present invention will be described with reference to FIGS. Those indicated by reference numeral 10 in FIG. 1 is a sealing material according to the exemplary embodiment, a plurality of plate members 11, 12 which are arranged to intersect in the thickness direction to each other, are configured in a planar shape as a whole.

図１中、下側に位置する板材１１は、その下部がろう付けによって基材（図９に示される基材２）に固定される一方側の板部材である。
この板材１１は、板材本体１３の上部であり、かつ該板材本体１３の長さ方向に沿って一定の間隔をおいて、下部に向けて漸次幅が縮小されるテーパー状の間隙を有するスリット１４が複数配置され形成されたものである。そして、このような構成により、各スリット１４の上部は幅広の拡大部１４Ａが形成され、かつ該スリット１４の下部は、他方の板材１２が密に嵌め込まれる幅狭の狭小部１４Ｂが形成されている。また、このスリット１４は板材本体１３の上側途中まで形成され、その下方は、もう他方の板材１２が嵌め込まれる嵌合面１５（後述する）となっている。 In FIG. 1, a lower plate member 11 is a plate member on one side whose lower part is fixed to a base material (base material 2 shown in FIG. 9) by brazing.
The plate member 11 is an upper portion of the plate member main body 13 and has a slit 14 having a tapered gap in which the width is gradually reduced toward the lower portion at a constant interval along the length direction of the plate member main body 13. Are arranged and formed. With such a configuration, a wide enlarged portion 14A is formed at the upper portion of each slit 14, and a narrow narrow portion 14B into which the other plate member 12 is closely fitted is formed at the lower portion of the slit 14. Yes. Further, the slit 14 is formed up to the middle of the upper side of the plate body 13, and the lower side thereof is a fitting surface 15 (described later) into which the other plate member 12 is fitted.

図１中、上側に位置する板材１２は、板材本体１６の下部に、全体として四角形状となる幅狭のスリット１７が形成された他方側の板部材であって、該スリット１７は、前記板材１１のスリット１４と同一のピッチで複数配置されている。また、これらスリット１７は、板材本体１６の下側に凹状に形成され、一方側の板材１１に嵌め込まれた場合に、スリット１４の狭小部１４Ｂ、及び該スリット１４の下方に位置する嵌合面１５に嵌合されるようになっている。   In FIG. 1, the plate member 12 located on the upper side is a plate member on the other side in which a narrow slit 17 having a rectangular shape as a whole is formed in the lower portion of the plate member main body 16, and the slit 17 is formed of the plate member. The plurality of slits 14 are arranged at the same pitch. The slits 17 are formed in a concave shape on the lower side of the plate body 16, and when fitted into the plate 11 on one side, the narrow portion 14 </ b> B of the slit 14 and the fitting surface located below the slit 14. 15 is fitted.

そして、このように構成されたシール材１０では、板材１１・１２のそれぞれに形成されたスリット１４とスリット１７とを互いに嵌め込むことで、他方側の板材１２のスリット１７が、板材１１のスリット１４の狭小部１４Ｂに嵌め合わされるとともに、該スリット１７の下方の嵌合面１５に密着される。一方、該板材１１のスリット１４の拡大部１４Ａ内においては、該板材１１と、該板材１２の上部（符号１２Ａで示す）との間で、隙間１８が形成されることになる。
その結果、シール材１０の板材１１を基材（図９に示される基材２）に固定する場合に、毛細管現象により、他方の板材１２と、板材１１のスリット１４の狭小部１４Ｂ及び該板材１１の嵌合面１５との間の微小な隙間内にろう材が浸透し、当該隙間のろう材によって、一方と他方の双方の板材１１・１２が固定されることになる。
これにより、他方の板材１２との間に隙間１８を有する板材１１のスリット１４の拡大部１４Ａにおいては、板材１１・１２の動きは規制されず、その結果、例えば、動翼の先端部と分割環との間に、当該シール材１０を設置した場合に、動翼と接触する箇所の該板材１１・１２の被切削性を確保することができる。 And in the sealing material 10 comprised in this way, the slit 17 of the board | plate material 12 of the other side is made into the slit of the board | plate material 11 by inserting the slit 14 and slit 17 which were formed in each of the board | plate materials 11 * 12 mutually. 14 is fitted into the narrow portion 14 </ b> B, and is in close contact with the fitting surface 15 below the slit 17. On the other hand, in the enlarged portion 14A of the slit 14 of the plate material 11, a gap 18 is formed between the plate material 11 and the upper portion of the plate material 12 (indicated by reference numeral 12A).
As a result, when the plate material 11 of the sealing material 10 is fixed to the base material (base material 2 shown in FIG. 9), the other plate material 12 and the narrow portion 14B of the slit 14 of the plate material 11 and the plate material due to capillary action. The brazing material permeates into a minute gap between the 11 fitting surfaces 15 and the brazing material in the gap fixes both the one and the other plate materials 11 and 12.
Thereby, in the enlarged portion 14A of the slit 14 of the plate member 11 having the gap 18 between the other plate member 12, the movement of the plate members 11 and 12 is not regulated. When the sealing material 10 is installed between the rings, it is possible to ensure the machinability of the plate materials 11 and 12 at the portions that come into contact with the moving blades.

なお、上述した板材１１及び板材１２では、例えば、図２に示すように、板材１１及び１２を格子状に配置することによって、全体として複数方向に同一形状を連続させたハニカム構造のシール材１０を構成することができる。そして、このとき、シール材１０を、動翼Ｆの移動方向（矢印Ａで示す）に対し，板材１１・１２を斜めとする配置とすることで、該板材１１・１２に対する動翼Ｆの接触を漸次行うようにし、これによって動翼Ｆと板材１１・１２とが同時に接触する面積を小さくして、該動翼Ｆが減耗を最小限に防止することができる。なお、図２では、板材１１・１２の交差角度が直角となるようにしているが、交差角度は直角に限定されず、板材１１・１２が傾斜するように配置しても良い。   In the plate member 11 and the plate member 12 described above, for example, as shown in FIG. 2, by arranging the plate members 11 and 12 in a lattice shape, the sealing member 10 having a honeycomb structure in which the same shape is continued in a plurality of directions as a whole. Can be configured. At this time, the sealing material 10 is arranged so that the plate materials 11 and 12 are inclined with respect to the moving direction of the moving blade F (indicated by the arrow A), so that the moving blade F contacts the plate materials 11 and 12. Thus, the area where the moving blade F and the plate members 11 and 12 are in contact with each other at the same time can be reduced, and wear of the moving blade F can be prevented to a minimum. In FIG. 2, the crossing angle of the plate members 11 and 12 is set to be a right angle, but the crossing angle is not limited to a right angle, and the plate members 11 and 12 may be arranged to be inclined.

以上詳細に説明したように本発明の実施例に示されるシール材１０では、互いに交差する板材１１・１２の少なくとも一方の板材１１に、他方の板材１２が嵌め込まれるスリット１４を設け、該スリット１４を、他方の板材１２が密に嵌め込まれる狭小部１４Ｂと、該狭小部１４Ｂより幅広に形成されて他方の板材１２が嵌め込まれた場合に該他方の板材１２との間に隙間１８を形成する拡大部１４Ａと、を有する構成としたので、該シール材１０を基材に固定する場合に、毛細管現象により、一方の板材１１に他方の板材１２が密に嵌め込まれるスリット１４の狭小部１４Ｂにろう材が浸透し、該狭小部１４Ｂにて、一方と他方の双方の板材１１・１２が固定されることになる。これにより、他方の板材１２との間に隙間１８を有する一方の板材１１の拡大部１４Ａにおいては、双方の板材１１・１２の動きは規制されず、その結果、例えば、動翼Fの先端部と分割環との間に、本発明のシール材を設置した場合において、動翼Ｆと接触する箇所の該板材の被切削性を確保することができ、動翼Ｆと接触した場合であっても、該動翼Ｆが損傷することを防止できる効果が得られる。 Above the sealing member 10 shown in the embodiment of the present invention as described in detail, at least one of the plate members 11 of the plate 11, 12 which cross each other, the slit 14 provided the other plate member 12 is fitted, the slit 14 A narrow portion 14B into which the other plate member 12 is closely fitted, and a gap 18 is formed between the narrow plate portion 12B and the other plate member 12 when the other plate member 12 is fitted into the narrow portion 14B. 14A, when the sealing material 10 is fixed to a base material, the narrow plate portion 14B of the slit 14 into which the other plate material 12 is closely fitted into one plate material 11 due to capillary action. The brazing material permeates, and one and the other plate materials 11 and 12 are fixed at the narrow portion 14B. Thereby, in the enlarged portion 14A of the one plate member 11 having the gap 18 between the other plate member 12, the movement of both the plate members 11 and 12 is not regulated. When the sealing material of the present invention is installed between the ring and the split ring, it is possible to ensure the machinability of the plate material at the location in contact with the moving blade F, and the contact with the moving blade F. Moreover, the effect which can prevent that this moving blade F is damaged is acquired.

（参考例）
本発明の参考例について図３を参照して説明する。参考例は、実施例と構成を同じくする箇所に同一符号を付し、重複した説明を省略する。
参考例のシール材２０において、実施例と構成を異にするのは、一方側の板材１１に形成されたスリット２１の形状である。すなわち、実施例のスリット１４では、下部に向けて漸次幅が縮小されるテーパー状の間隙を有する形状とし、各スリット１４の上部を幅広の拡大部１４Ａ、該スリット１４の下部を幅狭の狭小部１４Ｂとしたが、参考例のスリット２１では、このようなテーパー形状とせず段部を有する形状としている。 (Reference example)
A reference example of the present invention will be described with reference to FIG. Reference example, the same reference numerals to portions which have the same configuration as in Example, and a redundant description is omitted.
In the sealing material 20 of the reference example, the configuration different from that of the example is the shape of the slit 21 formed in the plate material 11 on one side. That is, the slit 14 of the embodiment has a shape having a tapered gap whose width is gradually reduced toward the lower portion, the upper portion of each slit 14 being a widened portion 14A, and the lower portion of the slit 14 being a narrow narrow portion. Although it was set as the part 14B, the slit 21 of the reference example does not have such a tapered shape but has a stepped shape.

すなわち、参考例のスリット２１では、上部に、他方の板材１２が嵌め込まれた場合に該板材１２との間に隙間２２を形成する幅広の拡大部２１Ａが形成され、下部に、他方の板材１２のスリット１７に丁度嵌合される幅狭の狭小部２１Ｂが形成されている。これらスリット２１の拡大部２１Ａ及び狭小部２１Ｂは、それぞれ傾斜せず同一の幅を有するように形成され、これら拡大部２１Ａと狭小部２１Ｂとの間は、段部２１Ｃが形成されている。 That is, in the slit 21 of the reference example , when the other plate member 12 is fitted, a widened enlarged portion 21A that forms a gap 22 between the plate member 12 is formed at the upper portion, and the other plate member 12 is formed at the lower portion. A narrow narrow portion 21 </ b> B that is just fitted into the slit 17 is formed. The enlarged portion 21A and the narrow portion 21B of the slit 21 are formed so as not to be inclined and have the same width, and a step portion 21C is formed between the enlarged portion 21A and the narrow portion 21B.

そして、このように構成されたシール材２０では、板材１１・１２のそれぞれに形成されたスリット２１とスリット１７とを互いに嵌め込むことで、他方側の板材１２のスリット１７が、板材１１のスリット２１の狭小部２１Ｂに嵌め合わさるとともに、該板材１１のスリット２１の下方に位置する嵌合面１５に密着される。一方、該板材１１のスリット２１の拡大部２１Ａ内においては、該板材１１と、前記板材１２の上部（符号１２Ａで示す）との間で、隙間２２が形成されることになる。
その結果、シール材２０の板材１１を基材（図９に示される基材２）に固定する場合に、毛細管現象により、他方の板材１２と、板材１１のスリット２１の狭小部２１Ｂ及び嵌合面１５との間の微小な隙間にろう材が浸透し、当該隙間のろう材によって、双方の板材１１・１２が固定されることになる。
これにより、他方の板材１２との間に隙間２２を有する板材１１のスリット２１の拡大部２１Ａにおいては、板材１１・１２の動きは規制されず、その結果、例えば、動翼の先端部と分割環との間に、当該シール材２０を設置した場合において、動翼と接触する箇所の該板材の被切削性を確保することができる。 And in the sealing material 20 comprised in this way, the slit 17 of the board | plate material 12 of the other side is made into the slit of the board | plate material 11 by inserting the slit 21 and slit 17 which were formed in each of the board | plate materials 11 * 12 mutually. It fits in the narrow part 21B of 21, and is closely_contact | adhered to the fitting surface 15 located under the slit 21 of this board | plate material 11. FIG. On the other hand, in the enlarged portion 21A of the slit 21 of the plate member 11, a gap 22 is formed between the plate member 11 and the upper portion of the plate member 12 (indicated by reference numeral 12A).
As a result, when the plate material 11 of the sealing material 20 is fixed to the base material (the base material 2 shown in FIG. 9), the narrow plate portion 21B and the fitting of the other plate material 12 and the slit 21 of the plate material 11 due to capillary action. The brazing material permeates into a minute gap between the surface 15 and both the plate materials 11 and 12 are fixed by the brazing material in the gap.
Thereby, in the enlarged portion 21A of the slit 21 of the plate member 11 having the gap 22 between the other plate member 12, the movement of the plate members 11 and 12 is not regulated. When the sealing material 20 is installed between the ring, it is possible to ensure the machinability of the plate material at a location in contact with the moving blade.

なお、上記実施例及び参考例のシール材１０・２０は、図２に示すような、板材１１及び１２を格子状に設置したハニカムシール材に適用できる他、図４〜図７に示すような、板材１１・１２の交差重なり部（符号Ｃで示す）を有するハニカムシール材にも適用しても良い。そして、この場合、板材１１・１２の交差重なり部Ｃにおいて、例えば、他方側の板材１２を図８に示すように曲折させ、その曲折部３０にて、板材１１のスリット１４又は２１に嵌合されるスリット１７を形成しても良いが、その嵌合方式は特に限定されるものではない。 The illustrated Rei及 beauty Reference Example sealant 10, 20, such as shown in FIG. 2, except that the sheet material 11 and 12 can be applied to honeycomb seal material installed in a grid pattern, as shown in FIGS. 4 to 7 In addition, the present invention may be applied to a honeycomb sealing material having a cross-overlapping portion (indicated by symbol C) of the plate materials 11 and 12. In this case, at the intersection C of the plate members 11 and 12, for example, the plate member 12 on the other side is bent as shown in FIG. 8, and the bent portion 30 is fitted to the slit 14 or 21 of the plate member 11. Although the slit 17 to be formed may be formed, the fitting method is not particularly limited.

なお、図４〜図７において、図４に示すハニカムシール材は、板材１１・１２により構成されるシール材１０又は２０のセルが。平面視、菱形に形成され、その頂部を面取りすることで、交差重なり部Ｃを形成したものである。また、図４に示すハニカムシール材では、菱形の短辺の対角線に沿う矢印Ａ方向に、動翼が移動するように設置されている。
図５に示すハニカムシール材は、図４と同様の交差重なり部Ｃを有し、板材１１・１２により構成されるシール材１０又は２０のセルが、平面視、ほぼ正方形に形成され、かつその対角線に沿う矢印Ａ方向に、動翼が移動するようにした例である。
図６に示すハニカムシール材は、図４と同様の交差重なり部Ｃを有し、板材１１・１２により構成されるシール材１０又は２０のセルが、平面視、菱形に形成され、かつ菱形の長辺の対角線に沿うに沿う矢印Ａ方向に、動翼が移動するようにした例である。
図７は、板材１１・１２を波型にし、波の頂部が合わさる箇所に、図４と同様の交差重なり部Ｃを形成したものである。 4 to 7, the honeycomb sealing material shown in FIG. 4 is a cell of the sealing material 10 or 20 composed of the plate materials 11 and 12. It is formed in a rhombus shape in plan view, and a crest portion thereof is chamfered to form an intersecting overlap portion C. Further, in the honeycomb sealing material shown in FIG. 4, the moving blade is installed so as to move in the arrow A direction along the diagonal line of the short side of the rhombus.
The honeycomb sealing material shown in FIG. 5 has a crossing overlap portion C similar to that in FIG. 4, and the cells of the sealing material 10 or 20 constituted by the plate materials 11 and 12 are formed in a substantially square shape in plan view, and This is an example in which the moving blade moves in the direction of arrow A along the diagonal line.
The honeycomb sealing material shown in FIG. 6 has a crossing overlapping portion C similar to that in FIG. 4, and the cells of the sealing material 10 or 20 constituted by the plate materials 11 and 12 are formed in a rhombus in plan view, and This is an example in which the moving blade moves in the direction of arrow A along the diagonal of the long side.
In FIG. 7, the plate members 11 and 12 are corrugated, and a crossover portion C similar to that in FIG. 4 is formed at a place where the tops of the waves meet.

なお、上記実施例では、板材１１・１２のスリット１４・１７・２１の嵌合長さをどの程度とするかは適宜設定可能である。例えば、板材１１のスリット１４・２１の長さを、板材本体１３の幅方向半分程度とし、かつこれに合わせて板材１２のスリット１７の長さを調整しても良い。   In addition, in the said Example, it can set suitably how much the fitting length of the slits 14 * 17 * 21 of the board | plate materials 11 * 12 is made. For example, the lengths of the slits 14 and 21 of the plate material 11 may be about half of the width direction of the plate material main body 13, and the length of the slits 17 of the plate material 12 may be adjusted according to this.

以上、本発明の実施形態について図面を参照して詳述したが、具体的な構成はこの実施形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計変更等も含まれる。   As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

本発明は、動翼の先端部と分割環との間や、静翼の内側シュラウドと動翼のプラットフォームとの間などのガスタービン用高温ハニカムシールに適用されるシール材に関する。   The present invention relates to a sealing material applied to a high-temperature honeycomb seal for a gas turbine, such as between a blade tip and a split ring, or between a stationary blade inner shroud and a blade platform.

１０ シール材
１１ 板材
１２ 板材
１４ スリット
１４Ａ 拡大部
１４Ｂ 狭小部
１７ スリット
１８ 隙間
２０ シール材
２１ スリット
２１Ａ 拡大部
２１Ｂ 狭小部 DESCRIPTION OF SYMBOLS 10 Sealing material 11 Board | plate material 12 Board | plate material 14 Slit 14A Enlarged part 14B Narrow part 17 Slit 18 Crevice 20 Sealing material 21 Slit 21A Enlarged part 21B Narrow part

Claims (2)

複数の板材を互いに厚さ方向に交差するように配置して構成されたシール材であって、
互いに交差する板材の少なくとも一方に、他方の板材が嵌め込まれるスリットが設けられ、
このスリットは、他方の板材が密に嵌め込まれる狭小部と、この狭小部より幅広く形成されて、他方の板材との間に隙間を有する拡大部とを形成し、
前記互いに交差する板材は、全体として複数方向に同一形状を連続させた平面形をなし、
前記一方側の板材に形成されるスリットを、上部に拡大部を有しかつ下部に狭小部を有するテーパー形状に形成したことを特徴とするシール材。 A sealing material configured by arranging a plurality of plate materials so as to cross each other in the thickness direction,
A slit into which the other plate material is fitted is provided in at least one of the plate materials crossing each other,
This slit forms a narrow portion into which the other plate material is closely fitted, and an enlarged portion that is formed wider than this narrow portion and has a gap between the other plate material,
Plate said cross one another, to name a planform which is continuously the same shape in a plurality of directions as a whole,
A sealing material characterized in that the slit formed in the plate material on one side is formed in a tapered shape having an enlarged portion at the upper portion and a narrow portion at the lower portion . 前記シール材を前記狭小部の側で基材にろう付けしたことを特徴とする請求項１のシール材。   The sealing material according to claim 1, wherein the sealing material is brazed to a base material on the narrow portion side.
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