CN114263636B - Double-deck quick-witted casket internal air entraining structure - Google Patents
Double-deck quick-witted casket internal air entraining structure Download PDFInfo
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- CN114263636B CN114263636B CN202111481190.XA CN202111481190A CN114263636B CN 114263636 B CN114263636 B CN 114263636B CN 202111481190 A CN202111481190 A CN 202111481190A CN 114263636 B CN114263636 B CN 114263636B
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- casing
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- layer casing
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- 238000007789 sealing Methods 0.000 claims abstract description 20
- 239000010410 layer Substances 0.000 claims description 73
- 239000002355 dual-layer Substances 0.000 claims description 11
- 230000035485 pulse pressure Effects 0.000 claims description 11
- 238000009530 blood pressure measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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- Measuring Fluid Pressure (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application belongs to the technical field of bleed air design in double-deck receiver, and concretely relates to bleed air structure in double-deck receiver includes: the outer-layer casing is provided with an outer-layer casing air vent; the inner-layer casing is arranged in the outer-layer casing and is provided with an inner-layer casing air inlet hole; the air guide pipe penetrates through the outer-layer casing air guide hole and is in clearance fit with the outer-layer casing air guide hole, the outer wall of the air guide pipe is provided with a limiting bulge, one end, facing the inner-layer casing, of the air guide pipe is connected to the inner-layer casing, and the end is communicated with the inner-layer casing air guide hole; the sealing gasket ring is sleeved on the air guide pipe; the compensation spring is sleeved on the periphery of the air-entraining pipe and positioned between the limiting bulge and the sealing gasket ring, and the sealing gasket ring is pressed on the outer-layer casing by means of elastic force.
Description
Technical Field
The application belongs to the technical field of bleed air design in double-layer casings, and particularly relates to a bleed air structure in a double-layer casing.
Background
When an aeroengine and a gas turbine work or test, air bleed needs to be carried out from the inside of a compressor casing of the aeroengine and the gas turbine, for example, pulse pressure measurement is carried out on the compressor, in the case that the compressor casing is a double-layer casing, an outer-layer casing air bleed hole is formed in the outer-layer casing, an inner-layer casing air bleed hole is formed in the inner-layer casing, an air bleed pipe penetrates through the outer-layer casing air bleed hole and is in threaded connection with the outer-layer casing air bleed hole, one end of the air bleed pipe, facing the inner-layer casing, extends into the inner-layer casing air bleed hole, and the other end of the air bleed pipe is connected with a pulse pressure sensor, so that air bleed can be carried out from the inner-layer casing, and the measurement of the pulse pressure of the compressor is realized.
The outer layer casing and the inner layer casing are made of different materials and have different linear expansion coefficients, and are heated to be deformed in an uncoordinated way, so that the air-entraining pipes bear larger stress to cause damage.
The present application has been made in view of the existence of the above-mentioned technical drawbacks.
It should be noted that the above disclosure of the background art is only for aiding in understanding the inventive concept and technical solution of the present invention, which is not necessarily prior art to the present application, and should not be used for evaluating the novelty and the creativity of the present application in the case where no clear evidence indicates that the above content has been disclosed at the filing date of the present application.
Disclosure of Invention
It is an object of the present application to provide a bleed air structure within a double-deck casing that overcomes or mitigates at least one of the known technical drawbacks.
The technical scheme of the application is as follows:
a dual-layer in-receiver bleed air structure comprising:
the outer-layer casing is provided with an outer-layer casing air vent;
the inner-layer casing is arranged in the outer-layer casing and is provided with an inner-layer casing air inlet hole;
the air guide pipe penetrates through the outer-layer casing air guide hole and is in clearance fit with the outer-layer casing air guide hole, the outer wall of the air guide pipe is provided with a limiting bulge, one end, facing the inner-layer casing, of the air guide pipe is connected to the inner-layer casing, and the end is communicated with the inner-layer casing air guide hole;
the sealing gasket ring is sleeved on the air guide pipe;
the compensation spring is sleeved on the periphery of the air-entraining pipe and positioned between the limiting bulge and the sealing gasket ring, and the sealing gasket ring is pressed on the outer-layer casing by means of elastic force.
According to at least one embodiment of the present application, in the above-mentioned double-layer casing internal air bleed structure, one end of the air bleed pipe, which faces the inner-layer casing, extends into the inner-layer casing air bleed hole, and is screwed into the inner-layer casing.
According to at least one embodiment of the present application, in the above-mentioned double-layer casing internal bleed air structure, the outer casing is provided with a seal groove;
the gasket ring is positioned in the sealing groove and is in clearance fit with the sealing groove.
According to at least one embodiment of the present application, in the above-mentioned double-layer casing internal air entraining structure, the limiting protrusion is provided with a limiting groove;
one end of the compensation spring, which faces the limiting protrusion, is clamped in the limiting groove.
According to at least one embodiment of the present application, in the above-mentioned double-deck in-case bleed air structure, further includes:
and the pulse pressure sensor is connected to one end of the air entraining pipe, which is back to the inner-layer casing.
According to at least one embodiment of the present application, in the above-mentioned dual-layer casing inner bleed air structure, the pulse pressure sensor is screwed to an end of the bleed air pipe facing away from the inner-layer casing.
According to at least one embodiment of the present application, in the above-mentioned double-layer casing internal bleed air structure, there are a plurality of bleed air pipes and their corresponding outer casing bleed air holes, inner casing bleed air holes, seal rings, and compensation springs.
According to at least one embodiment of the present application, in the above-mentioned double-layer casing internal air bleed structure, each air bleed pipe is connected by a lock wire.
Drawings
FIG. 1 is a schematic diagram of a structure for measuring pulsating pressure with a prior art double-deck in-case bleed air structure;
FIG. 2 is a schematic diagram of a dual-layer case bleed air structure for pulsation pressure measurement provided in accordance with an embodiment of the present application;
FIG. 3 is a schematic view of an induced draft tube provided in an embodiment of the present application;
wherein:
1-an outer-layer casing; 2-an inner casing; 3-an air introducing pipe; 4-a gasket ring; 5-compensating springs; 6-a pulsed pressure sensor.
For the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; further, the drawings are for illustrative purposes, wherein the terms describing the positional relationship are limited to the illustrative description only and are not to be construed as limiting the present patent.
Detailed Description
In order to make the technical solution of the present application and the advantages thereof more apparent, the technical solution of the present application will be more fully described in detail below with reference to the accompanying drawings, it being understood that the specific embodiments described herein are only some of the embodiments of the present application, which are for explanation of the present application, not for limitation of the present application. It should be noted that, for convenience of description, only the portion relevant to the present application is shown in the drawings, and other relevant portions may refer to a general design, and without conflict, the embodiments and technical features in the embodiments may be combined with each other to obtain new embodiments.
Furthermore, unless defined otherwise, technical or scientific terms used in the description of this application should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," "outer," and the like as used in this description are merely used to indicate relative directions or positional relationships, and do not imply that a device or element must have a particular orientation, be configured and operated in a particular orientation, and that the relative positional relationships may be changed when the absolute position of the object being described is changed, and thus should not be construed as limiting the present application. The terms "first," "second," "third," and the like, as used in the description herein, are used for descriptive purposes only and are not to be construed as indicating or implying any particular importance to the various components. The use of the terms "a," "an," or "the" and similar referents in the description of the invention are not to be construed as limited in number to the precise location of at least one. As used in this description, the terms "comprises," "comprising," or the like are intended to cover an element or article that appears before the term and that is listed after the term and its equivalents, without excluding other elements or articles.
Furthermore, unless specifically stated and limited otherwise, the terms "mounted," "connected," and the like in the description herein are to be construed broadly and refer to either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements, and the specific meaning of the two elements can be understood by a person skilled in the art according to specific situations.
The present application is described in further detail below in conjunction with fig. 1-3.
A dual-layer in-receiver bleed air structure comprising:
the outer-layer casing 1 is provided with an outer-layer casing air vent;
an inner casing 2 disposed in the outer casing 1 and having an inner casing air vent thereon;
the air guide pipe 3 penetrates through the outer-layer casing air guide hole and is in clearance fit with the outer-layer casing air guide hole, the outer wall of the air guide pipe is provided with a limit bulge, one end, facing the inner-layer casing 2, of the air guide pipe is connected to the inner-layer casing 2, and the end is communicated with the inner-layer casing air guide hole;
the sealing gasket ring 4 is sleeved on the air entraining pipe 3;
the compensation spring 5 is sleeved on the periphery of the air entraining pipe 3 and is positioned between the limiting protrusions and the sealing gasket rings 4, and the sealing gasket rings 4 are pressed on the outer-layer casing 1 by means of elastic force.
For the double-layer casing inner air-entraining structure disclosed in the above embodiment, it can be understood by those skilled in the art that the inner air in the inner casing 2 can enter the air-entraining pipe 3 through the inner casing air-entraining hole, and is led out by the air-entraining pipe 3, the air-entraining pipe 3 is designed to be connected with the inner casing 2 and is in clearance fit with the outer casing air-entraining hole, so that the uncoordinated deformation of the outer casing 1 and the inner casing 2 can be compensated, the air-entraining pipe 3 is prevented from being damaged due to larger stress, and in addition, the outer casing air-entraining hole is sealed by the sealing gasket ring 4 which is adaptively pressed on the outer casing 1 by the compensation spring 5, and a larger gap is designed between the air-entraining pipe 3 and the outer casing air-entraining hole, so as to adapt to the larger uncoordinated deformation of the outer casing 1 and the inner casing 2, and avoid the damage caused by the larger uncoordinated deformation of the outer casing 1 and the inner casing 2.
In some alternative embodiments, in the above-mentioned double-layer casing inner bleed air structure, one end of the bleed air pipe 3 facing the inner casing 2 extends into the inner casing bleed air hole, and the threaded connection in the inner casing can ensure reliable connection with the inner casing 2 and reliable sealing with the inner casing bleed air hole.
In some alternative embodiments, in the double-layer casing inner bleed air structure, the outer casing 1 is provided with a sealing groove;
the gasket ring 4 is located in the seal groove and is in clearance fit with the seal groove so as to be capable of restraining displacement of the gasket ring 4 on the outer casing 1 to a certain extent.
In some optional embodiments, in the above-mentioned double-layer casing internal air bleed structure, the limiting protrusion is provided with a limiting groove;
one end of the compensation spring 5, which faces the limiting protrusion, is clamped in the limiting groove.
In some optional embodiments, in the double-layer casing internal bleed air structure, the method further includes:
and the pulse pressure sensor 6 is connected to one end of the bleed air pipe 3, which is away from the inner-layer casing 2.
For the double-layer casing internal bleed air structure disclosed in the above embodiment, those skilled in the art can understand that the outer casing 1 and the inner casing 2 may be double casings of a compressor, and the pulse pressure measurement of the compressor may be achieved by connecting the pulse pressure sensor 6 to the end of the bleed air pipe 3 facing away from the inner casing 2.
In some alternative embodiments, in the double-layer casing inner bleed air structure, the pulse pressure sensor 6 is screwed on the end of the bleed air pipe 3 facing away from the inner casing 2, so as to facilitate disassembly and assembly.
In some alternative embodiments, in the double-layer casing inner bleed air structure, the bleed air pipe 3 and the corresponding outer casing bleed air holes, inner casing bleed air holes, the sealing gasket ring 4 and the compensating springs 5 are multiple.
In some alternative embodiments, in the double-layer casing inner bleed air structure, the bleed air pipes 3 are connected through locking wires.
In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred.
Having thus described the technical aspects of the present application with reference to the preferred embodiments illustrated in the accompanying drawings, it should be understood by those skilled in the art that the scope of the present application is not limited to the specific embodiments, and those skilled in the art may make equivalent changes or substitutions to the relevant technical features without departing from the principles of the present application, and those changes or substitutions will now fall within the scope of the present application.
Claims (8)
1. The utility model provides a bleed air structure in double-deck receiver which characterized in that includes:
the outer-layer casing (1) is provided with an outer-layer casing air vent;
an inner-layer casing (2) is arranged in the outer-layer casing (1), and is provided with an inner-layer casing air vent;
the air guide pipe (3) penetrates through the outer-layer casing air guide hole and is in clearance fit with the outer-layer casing air guide hole, the outer wall of the air guide pipe is provided with a limit bulge, one end, facing the inner-layer casing (2), of the air guide pipe is connected to the inner-layer casing (2), and the end is communicated with the inner-layer casing air guide hole;
a sealing gasket ring (4) sleeved on the air entraining pipe (3);
the compensation spring (5) is sleeved on the periphery of the air entraining pipe (3), is positioned between the limiting protrusions and the sealing gasket rings (4), and compresses the sealing gasket rings (4) on the outer-layer casing (1) by means of elastic force.
2. The dual-layer intra-casing bleed air structure of claim 1, wherein,
the air entraining pipe (3) extends into the air entraining hole of the inner-layer casing towards one end of the inner-layer casing (2) and is in threaded connection with the inner-layer casing.
3. The dual-layer intra-casing bleed air structure of claim 1, wherein,
the outer-layer casing (1) is provided with a sealing groove;
the seal gasket ring (4) is positioned in the seal groove and is in clearance fit with the seal groove.
4. The dual-layer intra-casing bleed air structure of claim 1, wherein,
the limiting protrusion is provided with a limiting groove;
one end of the compensation spring (5) facing the limiting protrusion is clamped in the limiting groove.
5. The dual-layer intra-casing bleed air structure of claim 1, wherein,
further comprises:
and the pulse pressure sensor (6) is connected to one end of the air guide pipe (3) which is opposite to the inner-layer casing (2).
6. The dual-layer intra-casing bleed air structure of claim 5, wherein,
the pulse pressure sensor (6) is in threaded connection with one end of the air guide pipe (3) which is opposite to the inner-layer casing (2).
7. The dual-layer intra-casing bleed air structure of claim 1, wherein,
the air-entraining pipe (3) and the corresponding outer-layer casing air-entraining hole, inner-layer casing air-entraining hole, sealing gasket ring (4) and compensation spring (5) are multiple.
8. The dual-layer intra-casing bleed air structure of claim 7, wherein,
the bleed air pipes (3) are connected through locking wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111481190.XA CN114263636B (en) | 2021-12-06 | 2021-12-06 | Double-deck quick-witted casket internal air entraining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111481190.XA CN114263636B (en) | 2021-12-06 | 2021-12-06 | Double-deck quick-witted casket internal air entraining structure |
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| Publication Number | Publication Date |
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| CN114263636A CN114263636A (en) | 2022-04-01 |
| CN114263636B true CN114263636B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111481190.XA Active CN114263636B (en) | 2021-12-06 | 2021-12-06 | Double-deck quick-witted casket internal air entraining structure |
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| CN118088792B (en) * | 2024-04-22 | 2024-07-02 | 成都中科翼能科技有限公司 | Bleed air assembly of double-layer runner casing of gas turbine |
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| CN114263636A (en) | 2022-04-01 |
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