CN216922232U

CN216922232U - Low-pressure steam exhaust volute steel casting for aviation

Info

Publication number: CN216922232U
Application number: CN202220693223.0U
Authority: CN
Inventors: 黄晓贵; 叶星策; 瞿建银
Original assignee: Wenzhou Kaicheng Machinery Co ltd
Current assignee: Wenzhou Kaicheng Machinery Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-07-08
Anticipated expiration: 2032-03-28

Abstract

The utility model discloses a low-pressure steam exhaust volute steel casting for aviation, which comprises a volute, a support and an exhaust pipe, wherein the volute and the exhaust pipe are integrally arranged, and the volute is sequentially provided with a first heat dissipation aluminum layer, a first cast steel inner layer, a first hard alloy reinforcing layer and a first cast steel outer layer from inside to outside; the exhaust pipe is sequentially provided with a second heat dissipation aluminum layer, a second cast steel inner layer, a second hard alloy reinforcing layer and a second cast steel outer layer from inside to outside, the inner end of the second heat dissipation aluminum layer is integrally arranged with the first heat dissipation aluminum layer, the inner end of the second cast steel inner layer is integrally arranged with the first cast steel inner layer, the inner end of the second hard alloy reinforcing layer is integrally arranged with the first hard alloy reinforcing layer, and the inner end of the second cast steel outer layer is integrally arranged with the first cast steel outer layer. Above-mentioned technical scheme, structural design is reasonable, spiral case and blast pipe integrated into one piece are made, heat dispersion is good, non-deformable and the practicality is good.

Description

Low-pressure steam exhaust volute steel casting for aviation

Technical Field

The utility model relates to the technical field of aviation exhaust volutes, in particular to a low-pressure exhaust volute steel casting for aviation.

Background

At present, an aviation exhaust volute is integrally connected with an exhaust pipe, the outer end of the exhaust pipe is an exhaust port of the volute, and the outer end of the exhaust pipe is directly welded with one end of a pipe body. When the exhaust pipe is installed, the pipe body and the volute are fixedly installed, and then the outer end of the exhaust pipe is welded with one end of the pipe body. However, due to manufacturing and installation errors, after the pipe body and the volute are fixed, a large gap exists between the outer end of the exhaust pipe and the welding end of the pipe body, so that direct welding is difficult, a gasket needs to be additionally installed, the installation process is complex, welding is serious or even impossible, and the pipe body needs to be replaced;

in addition, the existing aviation exhaust volute is unreasonable in structural design, poor in heat dissipation performance, prone to deformation due to overheating of the volute and poor in practicability.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide the low-pressure exhaust volute steel casting for aviation, which has the advantages of reasonable structural design, integrated manufacture of the volute and the exhaust pipe, good heat dissipation performance, difficult deformation and good practicability.

In order to achieve the purpose, the utility model provides the following technical scheme: a low-pressure steam exhaust volute steel casting for aviation comprises a volute, a support and an exhaust pipe, wherein the volute and the exhaust pipe are integrally arranged, the volute is sequentially provided with a first heat dissipation aluminum layer, a first cast steel inner layer, a first hard alloy reinforcing layer and a second cast steel outer layer from inside to outside, the outer surface of the first heat dissipation aluminum layer is fixedly connected with the inner surface of the first cast steel inner layer, the outer surface of the first cast steel inner layer is fixedly connected with the inner surface of the first hard alloy reinforcing layer, and the outer surface of the first hard alloy reinforcing layer is fixedly connected with the inner surface of the first cast steel outer layer; the exhaust pipe is sequentially provided with a second heat dissipation aluminum layer, a second cast steel inner layer, a second hard alloy reinforcing layer and a second cast steel outer layer from inside to outside, the inner end of the second heat dissipation aluminum layer is integrally arranged with the first heat dissipation aluminum layer, the inner end of the second cast steel inner layer is integrally arranged with the first cast steel inner layer, the inner end of the second hard alloy reinforcing layer is integrally arranged with the first hard alloy reinforcing layer, and the inner end of the second cast steel outer layer is integrally arranged with the first cast steel outer layer.

The utility model is further configured to: the outer surface of the second heat dissipation aluminum layer is fixedly connected with the inner surface of the second cast steel inner layer, the outer surface of the second cast steel inner layer is fixedly connected with the inner surface of the second hard alloy reinforced layer, and the outer surface of the second hard alloy reinforced layer is fixedly connected with the inner surface of the second cast steel outer layer.

The utility model is further configured to: the thickness of the first heat dissipation aluminum layer and the thickness of the second heat dissipation aluminum layer are both 0.1-1 mm.

The utility model is further configured to: the thickness of the first hard alloy reinforced layer and the thickness of the second hard alloy reinforced layer are both 0.2-3 mm.

The utility model is further configured to: the support is of an annular structure, a plurality of reinforcing ribs are integrally arranged on the support, and the reinforcing ribs are uniformly distributed in an annular shape; the volute and the bracket are integrally arranged or fixedly connected through bolts.

The utility model is further configured to: the bracket and the reinforcing ribs are both made of hard alloy materials or both made of stainless steel materials.

The utility model has the advantages that: compared with the prior art, the structure of the utility model is more reasonable, the volute and the exhaust pipe are integrally manufactured during manufacturing, the volute and the exhaust pipe are not required to be welded subsequently, no gap exists between the volute and the exhaust pipe, the connection is reliable, the subsequent installation of the volute is simple, and the service life is long; the first heat dissipation aluminum layer and the second heat dissipation aluminum layer are reasonably arranged, so that the heat dissipation performance of the volute and the exhaust pipe is good; the first hard alloy reinforcing layer and the second hard alloy reinforcing layer are good in reinforcing effect, so that the volute and the exhaust pipe are firm and durable, and are not easy to deform and good in practicability.

The utility model is further described with reference to the drawings and the specific embodiments in the following description.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of section I of FIG. 1;

FIG. 3 is an enlarged view of section II of FIG. 1;

fig. 4 is a perspective view of an embodiment of the present invention.

Detailed Description

In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, the indicated orientations or positional relationships thereof are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and "third" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.

Referring to fig. 1, 2, 3 and 4, the low-pressure steam exhaust volute steel casting for aviation disclosed by the utility model comprises a volute 1, a bracket 2 and an exhaust pipe 3, wherein the volute 1 and the exhaust pipe 3 are integrally arranged, the volute 1 is sequentially provided with a first heat dissipation aluminum layer 11, a first cast steel inner layer 12, a first hard alloy reinforcing layer 13 and a first cast steel outer layer 14 from inside to outside, the outer surface of the first heat dissipation aluminum layer 11 is fixedly connected with the inner surface of the first cast steel inner layer 12, the outer surface of the first cast steel inner layer 12 is fixedly connected with the inner surface of the first hard alloy reinforcing layer 13, and the outer surface of the first hard alloy reinforcing layer 13 is fixedly connected with the inner surface of the first cast steel outer layer 14; the exhaust pipe 3 is provided with a second heat dissipation aluminum layer 31, a second cast steel inner layer 32, a second hard alloy reinforcing layer 33 and a second cast steel outer layer 34 in sequence from inside to outside, the inner end of the second heat dissipation aluminum layer 31 is integrally provided with the first heat dissipation aluminum layer 11, the inner end of the second cast steel inner layer 32 is integrally provided with the first cast steel inner layer 12, the inner end of the second hard alloy reinforcing layer 33 is integrally provided with the first hard alloy reinforcing layer 13, and the inner end of the second cast steel outer layer 34 is integrally provided with the first cast steel outer layer 14.

Preferably, the first cast steel inner layer 12, the first hard alloy reinforced layer 13 and the second cast steel outer layer 14 are integrally formed by casting, the first heat dissipation aluminum layer 11 is welded and fixed to the inner surface of the first cast steel inner layer 12, or the first heat dissipation aluminum layer 11 is electroplated on the inner surface of the first cast steel inner layer 12 by an electroplating process; the second cast steel inner layer 32, the second hard alloy reinforced layer 33 and the second cast steel outer layer 34 are integrally formed by casting, and the second heat dissipation aluminum layer 31 is welded and fixed to the inner surface of the second cast steel inner layer 32 or the second heat dissipation aluminum layer 31 is electroplated on the inner surface of the second cast steel inner layer 32 by an electroplating process.

In order to make the structure of the present invention more reasonable, it is preferable that the outer surface of the second heat dissipating aluminum layer 31 of the present embodiment is fixedly connected to the inner surface of the second cast steel inner layer 32, the outer surface of the second cast steel inner layer 32 is fixedly connected to the inner surface of the second hard alloy reinforcing layer 33, and the outer surface of the second hard alloy reinforcing layer 33 is fixedly connected to the inner surface of the second cast steel outer layer 34.

The thickness of the first heat dissipation aluminum layer 11 and the second heat dissipation aluminum layer 31 is 0.1-1 mm.

The thickness of the first hard alloy reinforced layer 13 and the second hard alloy reinforced layer 33 is 0.2-3 mm.

The support 2 is of an annular structure, a plurality of reinforcing ribs 21 are integrally arranged on the support 2, and the reinforcing ribs 21 are uniformly distributed in an annular shape; the volute 1 and the bracket 2 are integrally arranged or fixedly connected through bolts. Preferably, the number of the reinforcing ribs 2 is 3 or more.

The bracket 2 and the reinforcing ribs 21 are both made of hard alloy materials or both made of stainless steel materials.

In practical application, the volute and the exhaust pipe are integrally manufactured during manufacturing, the volute and the exhaust pipe are not required to be welded subsequently, no gap exists between the volute and the exhaust pipe, and the connection is reliable, so that the subsequent installation of the volute is simple, and the service life is long; the first heat dissipation aluminum layer and the second heat dissipation aluminum layer are reasonably arranged, so that the heat dissipation performance of the volute and the exhaust pipe is good; the first hard alloy reinforcing layer and the second hard alloy reinforcing layer are good in reinforcing effect, so that the volute and the exhaust pipe are firm and durable, and are not easy to deform and good in practicability.

The above embodiments are only for further illustration of the present invention, and should not be construed as limiting the scope of the present invention, and the technical engineers in the art can make insubstantial modifications and adaptations of the present invention based on the above disclosure and disclosure of the utility model.

Claims

1. The utility model provides an aviation is with low pressure exhaust spiral case steel casting, includes spiral case (1), support (2) and blast pipe (3), its characterized in that: the volute (1) and the exhaust pipe (3) are integrally arranged, the volute (1) is sequentially provided with a first heat dissipation aluminum layer (11), a first cast steel inner layer (12), a first hard alloy reinforcing layer (13) and a first cast steel outer layer (14) from inside to outside, the outer surface of the first heat dissipation aluminum layer (11) is fixedly connected with the inner surface of the first cast steel inner layer (12), the outer surface of the first cast steel inner layer (12) is fixedly connected with the inner surface of the first hard alloy reinforcing layer (13), and the outer surface of the first hard alloy reinforcing layer (13) is fixedly connected with the inner surface of the first cast steel outer layer (14); the exhaust pipe (3) is sequentially provided with a second heat dissipation aluminum layer (31), a second cast steel inner layer (32), a second hard alloy reinforcing layer (33) and a second cast steel outer layer (34) from inside to outside, the inner end of the second heat dissipation aluminum layer (31) is integrally arranged with the first heat dissipation aluminum layer (11), the inner end of the second cast steel inner layer (32) is integrally arranged with the first cast steel inner layer (12), the inner end of the second hard alloy reinforcing layer (33) is integrally arranged with the first hard alloy reinforcing layer (13), and the inner end of the second cast steel outer layer (34) is integrally arranged with the first cast steel outer layer (14).

2. The aviation low-pressure steam exhaust volute steel casting according to claim 1, wherein: the outer surface of the second heat dissipation aluminum layer (31) is fixedly connected with the inner surface of the second cast steel inner layer (32), the outer surface of the second cast steel inner layer (32) is fixedly connected with the inner surface of the second hard alloy reinforced layer (33), and the outer surface of the second hard alloy reinforced layer (33) is fixedly connected with the inner surface of the second cast steel outer layer (34).

3. The aviation low-pressure steam exhaust volute steel casting according to claim 2, wherein: the thickness of the first heat dissipation aluminum layer (11) and the second heat dissipation aluminum layer (31) is 0.1-1 mm.

4. The aviation low-pressure steam exhaust volute steel casting according to claim 3, wherein: the thickness of the first hard alloy reinforced layer (13) and the thickness of the second hard alloy reinforced layer (33) are both 0.2-3 mm.

5. The aviation low-pressure steam exhaust volute steel casting according to claim 1, wherein: the support (2) is of an annular structure, a plurality of reinforcing ribs (21) are integrally arranged on the support (2), and the reinforcing ribs (21) are uniformly distributed in an annular shape; the volute (1) and the bracket (2) are integrally arranged or fixedly connected through bolts.

6. The aviation low-pressure steam exhaust volute steel casting according to claim 1, wherein: the bracket (2) and the reinforcing ribs (21) are both made of hard alloy materials or both made of stainless steel materials.