CN111120011A - Stationary blade ring - Google Patents
Stationary blade ring Download PDFInfo
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- CN111120011A CN111120011A CN201811276891.8A CN201811276891A CN111120011A CN 111120011 A CN111120011 A CN 111120011A CN 201811276891 A CN201811276891 A CN 201811276891A CN 111120011 A CN111120011 A CN 111120011A
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- outer ring
- ring
- groove
- slits
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- 230000002093 peripheral effect Effects 0.000 claims description 25
- 230000004323 axial length Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/003—Preventing or minimising internal leakage of working-fluid, e.g. between stages by packing rings; Mechanical seals
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a stationary blade ring, which comprises an outer ring, an inner ring, stationary blades and a first sealing element, wherein a plurality of first gaps are formed in the outer ring and are arranged at intervals along the circumferential direction of the outer ring; the inner ring is positioned on the inner side of the outer ring along the radial direction of the outer ring; the stationary blades are provided with a plurality of stationary blades, each stationary blade is connected with the outer ring and the inner ring, the plurality of stationary blades are uniformly arranged at intervals along the circumferential direction of the outer ring, and the first sealing element penetrates through the outer ring and the first gap from the outer circumferential surface of the outer ring to the inner circumferential surface of the outer ring so as to prevent gas from leaking out of the first gap along the axial direction of the outer ring. The stationary blade ring can prevent the gas in the main runner of the compressor from leaking from the high-pressure end to the low-pressure end along the axial direction, and eliminates the influence of the first gap on the gas flow in the main runner.
Description
Technical Field
The invention relates to the technical field of gas turbines, in particular to a stationary blade ring.
Background
In the gas turbine, the process of pressurizing gas by the gas compressor is finished by the rotation of movable blades in a flow passage of the gas compressor, the diffusion, and the rectification and the diffusion of a stationary blade. The stationary blade is a stationary member and is fixed to the cylinder through a stationary blade ring. The stator blade ring is generally composed of three parts, namely an outer ring, stator blades and an inner ring. In order to facilitate the assembly of the stationary blade ring and the holding ring or the cylinder, the outer ring and the inner ring of the stationary blade ring are generally cut into a plurality of sections, the outer ring is assembled by the plurality of sections, and gaps are formed between adjacent sections, and similarly, the inner ring is assembled by the plurality of sections, and gaps are formed between adjacent sections.
In the related art, a seal is installed between adjacent sections of the inner ring to block radial and axial gas flows and prevent gas from leaking at a gap of the inner ring, however, no sealing device is installed at the gap between adjacent sections of the outer ring. Therefore, in the related art, gas leakage at the gap of the outer ring cannot be prevented, the sealing effect is poor, the working efficiency of the gas compressor is affected, and meanwhile, the gas flow in the main flow passage is affected.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the invention provides the stationary blade ring which has good sealing effect, improves the working efficiency of the gas compressor and eliminates the influence on the gas flow in the main runner.
The stator blade ring comprises an outer ring, wherein a plurality of first gaps are arranged on the outer ring and are arranged at intervals along the circumferential direction of the outer ring so as to divide the outer ring into a plurality of arc sections extending along the circumferential direction of the outer ring; an inner ring located inside the outer ring in a radial direction of the outer ring; a plurality of stationary blades, each of which connects the outer ring and the inner ring, the plurality of stationary blades being arranged at regular intervals in a circumferential direction of the outer ring; a first seal member that penetrates the outer ring and the first slit from an outer peripheral surface of the outer ring to an inner peripheral surface of the outer ring to prevent gas from leaking from the first slit in an axial direction of the outer ring.
According to the stator blade ring provided by the embodiment of the invention, the first gap on the outer ring is sealed by the first sealing element, so that the gas in the main runner of the compressor is prevented from leaking from the high-pressure end to the low-pressure end at the first gap of the outer ring along the axial direction, the sealing effect of the stator blade ring is good, the working efficiency of the compressor is improved, and meanwhile, the influence of the first gap on the gas flow in the main runner is eliminated due to the sealing of the first gap of the outer ring.
In some embodiments, the first seal is T-shaped.
In some embodiments, the first seal includes a first section extending from the outer circumferential surface of the outer ring toward the inner circumferential surface of the outer ring and a second section extending from the inner end of the first section toward the inner circumferential surface of the outer ring, the second section having a length greater than the length of the first section and a width less than the width of the first section.
In some embodiments, the thickness of the second section is less than the thickness of the first section.
In some embodiments, a mounting groove is formed on the outer ring, the mounting groove is communicated with the first gap, and the first sealing element is fitted in the mounting groove.
In some embodiments, an axial direction of the mounting groove and an extending direction of the first slit from the outer circumferential surface of the outer ring toward the inner circumferential surface of the outer ring coincide.
In some embodiments, the mounting groove includes a first groove and a second groove communicating with each other, the first groove being disposed adjacent to an outer circumferential surface of the outer ring, the second groove being disposed adjacent to an inner circumferential surface of the outer ring, an axial length of the second groove being greater than an axial length of the first groove, and a cross-sectional area of the second groove being smaller than a cross-sectional area of the first groove.
In some embodiments, a plurality of the first slits are evenly spaced along a circumferential direction of the outer ring.
In some embodiments, a plurality of second slits are provided on the inner ring, the plurality of second slits are arranged at intervals along the circumferential direction of the inner ring to divide the inner ring into a plurality of arc sections extending along the circumferential direction of the inner ring, and the second slits are arranged opposite to the first slits along the radial direction of the outer ring.
In some embodiments, the vane ring further comprises a second seal that is cross-shaped and fits within the second gap to prevent gas from escaping from the second gap in both axial and radial directions within the second gap.
Drawings
FIG. 1 is a schematic structural view of a vane ring according to an embodiment of the invention.
FIG. 2 is a schematic structural view of an outer ring of a vane ring according to an embodiment of the invention.
FIG. 3 is a partially enlarged schematic view of an outer ring of a vane ring according to an embodiment of the invention.
FIG. 4 is an exploded view of an outer ring of a vane ring according to an embodiment of the invention.
FIG. 5 is a structural schematic diagram of an inner ring of a vane ring according to an embodiment of the invention.
Reference numerals:
the structure comprises an outer ring 1, a mounting groove 11, a first groove 111, a second groove 112, a first gap 101, a blade root groove 102, an inner ring 2, a static blade 3, a first sealing element 4, a first section 41 and a second section 42.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
As shown in fig. 1 to 5, the stationary blade ring according to the embodiment of the present invention includes an outer ring 1, an inner ring 2, stationary blades 3, and a first seal 4, the outer ring 1 is provided with a plurality of first slits 101, and the plurality of first slits 101 are arranged at intervals in a circumferential direction of the outer ring 1 to divide the outer ring 1 into a plurality of arc segments extending in the circumferential direction of the outer ring 1. Specifically, the plurality of first slits 11 are arranged at regular intervals in the circumferential direction of the outer ring 1, that is, the distances between the adjacent first slits 101 in the circumferential direction of the outer ring 1 are the same. In other words, as shown in fig. 1 and 2, the first slits 101 extend from the outer peripheral surface of the outer ring 1 to the inner peripheral surface of the outer ring 1, i.e., the first slits 101 penetrate the wall thickness of the outer ring 1, and the first slits 101 extend from the first end surface of the outer ring 1 to the second end surface of the outer ring 1, i.e., the first slits 101 penetrate the outer ring 1 in the direction from the first end of the outer ring 1 toward the second end of the outer ring 1.
Specifically, the first slits 101 may be provided in plurality, for example, as shown in fig. 1 and 2, the first slits 101 are provided in 4 numbers, 4 first slits 101 are uniformly spaced along the circumferential direction of the outer ring 1, and the 4 first slits 101 divide the outer ring 1 into 4 arc segments extending along the circumferential direction of the outer ring 1.
The inner ring 2 is located inside the outer ring 1 in the radial direction of the outer ring 1. In other words, as shown in fig. 1, the outer ring 1 is disposed around the inner ring 2, the outer ring 1 and the inner ring 2 are disposed coaxially, and there is a gap between the inner ring 2 and the outer ring 1 in the radial direction of the outer ring 1.
The stationary blades 3 have a plurality, each stationary blade 3 connects the outer ring 1 and the inner ring 2, and the plurality of stationary blades 3 are arranged at regular intervals in the circumferential direction of the outer ring 1. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In other words, as shown in fig. 1, the stationary blades 3 are located between the outer ring 1 and the inner ring 2, and the outer ends of the stationary blades 3 are connected to the inner peripheral surface of the outer ring 1, and the inner ends of the stationary blade rings 3 are connected to the outer peripheral surface of the inner ring 2. A plurality of stationary blades 3 are arranged between the outer ring 1 and the inner ring 2 in the circumferential direction of the outer ring 1, i.e., the circumferential direction of the inner ring 2, and the distances between adjacent stationary blades 3 are the same.
Specifically, the stationary blades 3 include a blade tip, a blade body, and a blade root which are sequentially connected outward in the radial direction of the outer ring 1, the inner circumferential surface of the outer ring 1 is provided with a plurality of blade root grooves 102 arranged at intervals in the circumferential direction of the outer ring 1, as shown in fig. 3, the outer ends of the blade roots of the stationary blades 3 are fitted in the blade root grooves 102, and one stationary blade 3 corresponds to one blade root groove 102, and the inner ends of the blade tips of the stationary blades 3 are connected to the outer circumferential surface of the inner ring 2. Wherein the first slit 101 is spaced apart from the root groove 102, i.e. the first slit 101 is provided at a position on the outer ring 1 where there is no root groove 102.
The first seal 4 penetrates the outer ring 1 and the first slit 101 from the outer circumferential surface of the outer ring 1 to the inner circumferential surface of the outer ring 1 to prevent gas from leaking from the first slit 101 in the axial direction of the outer ring 1. In other words, as shown in fig. 3 and 4, the first seal 4 extends from the outer peripheral surface of the outer ring 1 to the inner peripheral surface of the outer ring 1 at the first slit 101, and the first seal 4 partitions the first slit 101 into two-part slits that are spaced apart and do not communicate in a direction from the first end surface of the outer ring 1 toward the second end surface of the outer ring 1.
According to the stator blade ring provided by the embodiment of the invention, the first gap 101 on the outer ring 1 is sealed by the first sealing element 4, so that the gas in the main runner of the compressor is prevented from leaking from a high-pressure end to a low-pressure end at the first gap 101 of the outer ring 1 along the axial direction, the sealing effect of the stator blade ring is good, the working efficiency of the compressor is improved, and meanwhile, the influence of the first gap 101 on the gas flow in the main runner is eliminated due to the sealing of the first gap 101 of the outer ring 1.
In some embodiments, the first seal 4 is T-shaped. In other words, the T-seal is disposed inside the outer ring 1, and blocks the first slit 101 in a direction from the first end face of the outer ring 1 toward the second end face of the outer ring 1.
In some embodiments, as shown in fig. 4, the first seal 4 includes a first section 41 and a second section 42 connected to each other, the first section 41 extending from the outer circumferential surface of the outer ring 1 toward the inner circumferential surface of the outer ring 1, the second section 42 extending from the inner end of the first section 41 in a direction from the outer circumferential surface of the outer ring 1 toward the inner circumferential surface of the outer ring 1 and extending to the inner circumferential surface of the outer ring 1, wherein the first section 41 has a length smaller than that of the second section 42, and the first section 41 has a width larger than that of the second section 41. In other words, the first section 41 and the second section 42 are substantially T-shaped when connected to each other.
Here, it is to be understood that "the length" in "the length of the first section 41 is smaller than the length of the second section 42" is the length of the first seal 4 in the direction from the outer peripheral surface of the outer ring 1 toward the inner peripheral surface of the outer ring 1, and "the width" in "the width of the first section 41 is larger than the width of the second section 41" is the length of the first seal 4 in the up-down direction shown in fig. 4.
Further, the thickness of the second section 42 is smaller than the thickness of the first section 41. In this embodiment, the sealing effect can be further improved by making the thickness of the first section 41 of the first seal member 4 larger than the thickness of the second section 42. Here, it is to be understood that the "thickness" in the "thickness of the second section 42 is smaller than the thickness of the first section 41" is the length of the first seal 4 in the direction along the first end face of the outer ring 1 toward the second end face of the outer ring 1.
In some embodiments, as shown in fig. 4, the outer ring 1 is provided with a mounting groove 11, the mounting groove 11 is communicated with the first gap 101, and the first sealing element 4 is fitted in the mounting groove 11. Preferably, the axial direction of the mounting groove 11 coincides with the extending direction of the first slit 101 from the outer circumferential surface of the outer ring 1 toward the inner circumferential surface of the outer ring 1. In other words, the mounting groove 11 extends from the outer peripheral surface of the outer ring 1 to the inner peripheral surface of the outer ring 1. It is understood that the mounting groove 11 may or may not be a through groove.
Specifically, the mounting groove 11 includes a first groove 111 and a second groove 112 that communicate with each other, and the first groove 111 is provided adjacent to the outer circumferential surface of the outer ring 1, that is, the first groove 111 extends from the outer circumferential surface of the outer ring 1 in a direction from the outer circumferential surface of the outer ring 1 toward the inner circumferential surface of the outer ring 1. The second groove 112 is provided adjacent to the inner peripheral surface of the outer ring 1, i.e., the second groove 112 extends from the inner end of the first groove 111 in a direction from the outer peripheral surface of the outer ring 1 toward the inner peripheral surface of the outer ring 1. The axial length of the second groove 112 is greater than the axial length of the first groove 111, and the cross-sectional area of the second groove 112 is smaller than the cross-sectional area of the first groove 111. For example, as shown in fig. 4, the length of the second groove 112 is greater than the length of the first groove 111 in a direction from the outer peripheral surface of the outer ring 1 toward the inner peripheral surface of the outer ring 1 (corresponding to the longitudinal direction of the first seal 4); in the up-down direction shown in fig. 4 (corresponding to the width direction of the first seal), the length of the second groove 112 is smaller than the length of the first groove 111; the length of the second groove 112 is smaller than the length of the first groove 111 in a direction from the first end face of the outer ring 1 toward the second end face of the outer ring 1 (corresponding to the thickness direction of the first seal 4).
In other words, the shape and size of the mounting groove 11 is in accordance with the shape and size of the first seal member 4, the first section 41 of the first seal member 4 is fitted in the first groove 111, and the second section 42 of the first seal member 4 is fitted in the second groove 112, so that the first slit 101 is divided by the first seal member 4 into two-part slits spaced apart in a direction from the first end face of the outer ring 1 toward the second end face of the outer ring 1.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In some embodiments, as shown in fig. 5, a plurality of second slits 201 are provided on the inner ring 2, and the plurality of second slits 201 are arranged at intervals along the circumferential direction of the inner ring 2 to divide the inner ring 2 into a plurality of arc segments extending along the circumferential direction of the inner ring 2. Specifically, the plurality of second slits 201 are arranged at regular intervals in the circumferential direction of the inner ring 2, that is, the distances between adjacent second slits 201 in the circumferential direction of the inner ring 2 are the same. Preferably, the second slit 201 is disposed opposite to the first slit 101 in the radial direction of the outer ring 1.
In some embodiments, the vane ring further comprises a second seal (not shown) which is cross-shaped and fits within the second gap 201 to prevent gas from leaking out of the second gap 201 in the axial and radial directions of the inner ring 2.
A stationary blade according to a specific embodiment of the present invention is described below with reference to fig. 1 to 5.
As shown in fig. 1 to 5, the stationary blade according to the embodiment of the present invention includes an outer ring 1, an inner ring 2, a stationary blade 3, and a first seal 4.
The outer ring 1 is provided with a plurality of first slits 101, each first slit 101 extends from the outer circumferential surface of the outer ring 1 to the inner circumferential surface of the outer ring 1, i.e. the first slit 101 penetrates the wall thickness of the outer ring 1, and the first slit 101 extends from the first end surface of the outer ring 1 to the second end surface of the outer ring 1, i.e. the first slit 101 penetrates the outer ring 1 in the direction from the first end of the outer ring 1 to the second end of the outer ring 1. The plurality of first slits 101 are arranged at regular intervals in the circumferential direction of the outer ring 1 to divide the outer ring 1 into a plurality of arc segments extending in the circumferential direction of the outer ring 1.
The inner circumferential surface of the outer ring 1 is further provided with a plurality of root grooves 102 arranged at intervals in the circumferential direction of the outer ring 1, and the root grooves 102 and the first slits 101 are spaced apart from each other.
The outer ring 1 is provided with a mounting groove 11, the mounting groove 11 includes a first groove 111 and a second groove 112 communicating with each other, and the first groove 111 extends from the outer circumferential surface of the outer ring 1 in a direction from the outer circumferential surface of the outer ring 1 toward the inner circumferential surface of the outer ring 1. The second groove 112 extends from the inner end of the first groove 111 in a direction from the outer circumferential surface of the outer ring 1 toward the inner circumferential surface of the outer ring 1 and to the inner circumferential surface of the outer ring 1. The length of the second groove 112 in the direction from the outer peripheral surface of the outer ring 1 toward the inner peripheral surface of the outer ring 1 is greater than the length of the first groove 111 in the direction from the outer peripheral surface of the outer ring 1 toward the inner peripheral surface of the outer ring 1, the length of the second groove 112 in the up-down direction shown in fig. 4 is less than the length of the first groove 111 in the up-down direction shown in fig. 4, and the length of the second groove 112 in the direction from the first end surface of the outer ring 1 toward the second end surface of the outer ring 1 is less than the length of the first groove 111 in the direction from the first end surface of the outer ring 1 toward the second end surface of the.
The first seal member 4 includes a first section 41 and a second section 42 connected to each other, the first section 41 extends from the outer circumferential surface of the outer ring 1 toward the inner circumferential surface of the outer ring 1, the second section 42 extends from the inner end of the first section 41 in a direction from the outer circumferential surface of the outer ring 1 toward the inner circumferential surface of the outer ring 1 and extends to the inner circumferential surface of the outer ring 1, wherein the length of the first section 41 is smaller than the length of the second section 42, and the width of the first section 41 is larger than the width of the second section 41, so that the first seal member 4 is substantially T-shaped. The first seal member 4 has a shape and a size corresponding to those of the mounting groove 11, the first section 41 fits into the first groove 111, and the second section 42 fits into the second groove 112, so that the first slit 101 is divided into two parts by the first seal member 4, the two parts being spaced apart and not communicating in a direction from the first end face of the outer ring 1 toward the second end face of the outer ring 1, to prevent gas from leaking from the first slit 101 in the axial direction of the outer ring 1.
The inner ring 2 is located on the inner side of the outer ring 1 along the radial direction of the outer ring 1, the outer ring 1 and the inner ring 2 are coaxially arranged, and a gap is formed between the inner ring 2 and the outer ring 1 along the radial direction of the outer ring 1. A plurality of second slits 201 are arranged on the inner ring 2, the plurality of second slits 201 are uniformly arranged along the circumferential direction of the inner ring 2 at intervals so as to divide the inner ring 2 into a plurality of arc sections extending along the circumferential direction of the inner ring 2, and the second slits 201 and the first slits 101 are arranged opposite to each other along the radial direction of the outer ring 1.
The vane ring further includes a second seal (not shown) that is cross-shaped and fitted in the second gap 201 to prevent gas from leaking out of the second gap 201 in the axial and radial directions of the inner ring 2.
The fixed blades 3 are provided with a plurality of fixed blades 3 which are uniformly arranged at intervals along the circumferential direction of the outer ring 1, each fixed blade 3 comprises a blade top, a blade body and a blade root which are sequentially connected along the radial direction of the outer ring 1, the outer ends of the blade roots of the fixed blades 3 are matched in the blade root grooves 102, one fixed blade 3 corresponds to one blade root groove 102, and the inner ends of the blade tops of the fixed blades 3 are connected with the outer circumferential surface of the inner ring 2.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A vane ring, comprising:
the outer ring is provided with a plurality of first gaps which are arranged at intervals along the circumferential direction of the outer ring so as to divide the outer ring into a plurality of arc sections extending along the circumferential direction of the outer ring;
an inner ring located inside the outer ring in a radial direction of the outer ring;
a plurality of stationary blades, each of which connects the outer ring and the inner ring, the plurality of stationary blades being arranged at regular intervals in a circumferential direction of the outer ring;
a first seal member that penetrates the outer ring and the first slit from an outer peripheral surface of the outer ring to an inner peripheral surface of the outer ring to prevent gas from leaking from the first slit in an axial direction of the outer ring.
2. The vane ring of claim 1, wherein the first seal is T-shaped.
3. The vane ring of claim 1, wherein the first seal includes a first segment extending from an outer circumferential surface of the outer ring toward an inner circumferential surface of the outer ring and a second segment extending from an inner end of the first segment toward the inner circumferential surface of the outer ring, the second segment having a length greater than the length of the first segment and a width less than the width of the first segment.
4. The vane ring of claim 3, wherein a thickness of the second segment is less than a thickness of the first segment.
5. The stationary blade ring as claimed in claim 1, wherein a mounting groove is provided on said outer ring, said mounting groove communicating with said first slit, said first seal member being fitted in said mounting groove.
6. The vane ring according to claim 5, wherein an axial direction of the mounting groove coincides with an extending direction of the first slit from an outer circumferential surface of the outer ring toward an inner circumferential surface of the outer ring.
7. The vane ring of claim 6, wherein the mounting groove includes a first groove and a second groove communicating with each other, the first groove being provided adjacent to an outer peripheral surface of the outer ring, the second groove being provided adjacent to an inner peripheral surface of the outer ring, an axial length of the second groove being greater than an axial length of the first groove, a cross-sectional area of the second groove being smaller than a cross-sectional area of the first groove.
8. The vane ring according to any one of claims 1 to 7, wherein a plurality of the first slits are arranged at regular intervals in a circumferential direction of the outer ring.
9. The stator blade ring according to any one of claims 1 to 7, wherein a plurality of second slits are provided on the inner ring, the plurality of second slits being arranged at intervals in a circumferential direction of the inner ring to divide the inner ring into a plurality of arc sections extending in the circumferential direction of the inner ring, the second slits being arranged opposite to the first slits in a radial direction of the outer ring.
10. The vane ring of claim 9, further comprising a second seal that is cross-shaped and fits within the second gap to prevent gas from leaking out of the second gap in the axial and radial directions of the inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811276891.8A CN111120011B (en) | 2018-10-30 | Stationary blade ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811276891.8A CN111120011B (en) | 2018-10-30 | Stationary blade ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111120011A true CN111120011A (en) | 2020-05-08 |
| CN111120011B CN111120011B (en) | 2024-06-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623076A (en) * | 2021-09-06 | 2021-11-09 | 中国联合重型燃气轮机技术有限公司 | Heavy gas turbine air inlet cylinder |
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| CN107075963A (en) * | 2014-09-29 | 2017-08-18 | 西门子股份公司 | The device in the gap between two sections for sealing guide vane |
| CN209129681U (en) * | 2018-10-30 | 2019-07-19 | 中国联合重型燃气轮机技术有限公司 | Fixed blade ring |
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| US5707207A (en) * | 1995-03-29 | 1998-01-13 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" | Layout for connecting two angular sectors of a turbomachine, and seal designed for use in this layout |
| US20110299978A1 (en) * | 2010-06-04 | 2011-12-08 | Gennadiy Afanasiev | Gas turbine engine sealing structure |
| CN204060942U (en) * | 2014-08-13 | 2014-12-31 | 三菱日立电力***株式会社 | The sealing section structure of rotating machinery, sealing component and axial flow gas turbine |
| CN107075963A (en) * | 2014-09-29 | 2017-08-18 | 西门子股份公司 | The device in the gap between two sections for sealing guide vane |
| CN209129681U (en) * | 2018-10-30 | 2019-07-19 | 中国联合重型燃气轮机技术有限公司 | Fixed blade ring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623076A (en) * | 2021-09-06 | 2021-11-09 | 中国联合重型燃气轮机技术有限公司 | Heavy gas turbine air inlet cylinder |
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