Aero-engine external space special-shaped pipeline based on saddle type inclined tee joint

Abstract

The invention discloses an aero-engine external space special-shaped pipeline based on a saddle-shaped inclined three-way connector. The aero-engine external space special-shaped pipeline comprises an original pipeline, the saddle-shaped inclined three-way connector and the saddle-shaped inclined three-way connector, wherein the saddle-shaped inclined three-way connector and the saddle-shaped inclined three-way connector are installed on the side wall of the original pipeline. The measuring point hole is marked and formed in the original pipeline, the saddle part of the saddle-shaped inclined three-way joint is welded and fixed with the original pipeline at the measuring point hole, and the measuring element is mounted on the pipe body part through the communicating guide pipe, so that the measuring element obliquely extends into the inclined space of the external space area of the aero-engine, and the problems that the original pipeline needs to be cut off, and the measuring precision is high are solved. And an original pipeline needs to be changed, and modification can be completed only by obtaining an operation space by changing an original related pipeline.

Description

Technical Field

[0001] The present invention relates to a special-shaped pipeline in the external space of an aero-engine based on a saddle-shaped inclined tee joint, belonging to the technical field of aero-engines. Background Art

[0002] The external pipeline system of an aero-engine refers to a system that connects various components of the engine, accessories, between components and accessories, and between the engine and the aircraft through ducts, conveys their respective specified fluids, and completes functions such as engine operation, control, and operation. The pipeline layout design is one of the important design steps in aero-engine design, and its quality directly affects the performance, reliability, life cycle, and economic cost of the aero-engine.

[0003] During the pipeline design process, to meet the parameter measurement requirements during engine test runs, pipeline test modification work is often involved. To measure the required parameters on the engine, measurement components such as sensors need to be added to the measurement system.

[0004] For conventional pipelines to add branches, a right-angle tee joint is used for modification (see Chinese Patent Publication No. CN206468443U). When using a right-angle tee joint, the original pipeline needs to be cut and then butt-jointed and fixed at both ends for connection. The operation space can only be obtained by changing the original pipeline and making changes to the original relevant pipelines. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a special-shaped pipeline in the external space of an aero-engine based on a saddle-shaped inclined tee joint.

[0006] The present invention is achieved through the following technical solutions.

[0007] A special-shaped pipeline in the external space of an aero-engine based on a saddle-shaped inclined tee joint provided by the present invention includes:

[0008] The original pipeline and a saddle-shaped inclined tee joint installed on the side wall of the pipeline, the saddle-shaped inclined tee joint.

[0009] A measuring point hole is opened on the side wall of the original pipeline; the saddle-shaped inclined tee joint is installed at the measuring point hole on the side wall of the original pipeline;

[0010] The saddle-shaped inclined tee joint is divided into a saddle part and a pipe body part, and a through hole is provided on the saddle part to communicate with the pipe body part.

[0011] The end of the pipe body part far from the measuring point hole is a step; it further includes a measuring element communicated with the pipe body part through a connecting conduit.

[0012] The depth of insertion of the connecting conduit into the pipe body part is 7 mm ± 1 mm.

[0013] The pipe body part is inclined and distributed on the original pipeline, so that the axis of the pipe body part makes an inclined angle α with the axis of the original pipeline, and the angle α is 30°.

[0014] It also includes the external space area of the aero-engine. There is an inclined space in the external space area of the aero-engine, and the measuring element is inclined and extends into the inclined space in the external space area of the aero-engine.

[0015] The saddle part has a grinding layer, and the grinding layer is fixedly welded to the side wall of the original pipeline at the measuring point hole by brazing; the original pipeline and the saddle part are fixedly connected through a solder layer of welding.

[0016] The saddle part is in the shape of a semi-open arc, and the opening angle β of the saddle part is 150° ± 5°.

[0017] The beneficial effect of the present invention is that by marking and opening a measuring point hole in the original pipeline, the saddle part of the saddle-shaped inclined three-way joint is fixedly welded to the original pipeline at the measuring point hole, and the measuring element is installed through a connecting conduit with the pipe body part, so that the measuring element is inclined and extends into the inclined space in the external space area of the aero-engine, solving the problems that the original pipeline needs to be cut off, and the original pipeline and the original related pipelines need to be changed to obtain an operating space to complete the modification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is a side view schematic diagram of the saddle-shaped inclined three-way joint of the present invention;

[0020] Figure 3 is a front view sectional view of the saddle-shaped inclined three-way joint of the present invention;

[0021] Figure 4 is a side view schematic of the saddle-shaped inclined three-way joint and the original pipeline of the present invention Figure 1 ;

[0022] Figure 5 is a side view schematic of the saddle-shaped inclined three-way joint and the original pipeline of the present invention Figure 2 ;

[0023] In the figure: 1 - original pipeline; 11 - measuring point hole; 2 - saddle-shaped inclined three-way joint; 21 - saddle part; 22 - pipe body part; 23 - connecting conduit; 24 - measuring element; 3 - external space area of the aero-engine; 31 - inclined space. DETAILED DESCRIPTION OF THE INVENTION

[0024] The technical solution of the present invention will be further described below, but the scope of protection is not limited thereto.

[0025] AsFigures 1 to 5 as shown

[0026] A special-shaped pipeline in the external space of an aero-engine based on a saddle-shaped inclined tee joint of the present application includes:

[0027] An original pipeline 1 for conveying fluid, and a measuring point hole 11 is opened on the side wall of the original pipeline 1.

[0028] It also includes a saddle-shaped inclined tee joint 2 installed at the measuring point hole 11 on the side wall of the original pipeline 1; the saddle-shaped inclined tee joint 2 is divided into a saddle part 21 and a pipe body part 22, the saddle part 21 and the pipe body part 22 are integrally formed and fixedly connected, and a through hole is provided on the saddle part 21 to communicate with the pipe body part 22; the end of the pipe body part 22 away from the measuring point hole 11 is a step, which is convenient for the connecting conduit 23 to tilt the measuring element 24 such as a temperature sensor into the inclined space 31 in the external space area 3 of the aero-engine. The insertion depth of the connecting conduit 23 into the pipe body part 22 is 7mm ± 1mm.

[0029] When it is necessary to increase the measuring element 24 to tilt into the inclined space 31 in the external space area 3 of the aero-engine. By marking and opening the measuring point hole 11 on the original pipeline 1, the saddle part 21 of the saddle-shaped inclined tee joint 2 is fixedly welded to the original pipeline 1 at the measuring point hole 11, and the measuring element 24 is installed with the pipe body part 22 through the connecting conduit 23, so that the measuring element 24 tilts into the inclined space 31 in the external space area 3 of the aero-engine, solving the problems that the original pipeline needs to be cut off, and the original pipeline and the original related pipelines need to be changed to obtain the operation space to complete the modification.

[0030] The pipe body part 22 is inclined and distributed on the original pipeline 1, so that the axis of the pipe body part 22 presents an inclined α angle with the axis of the original pipeline 1, and the α angle is 30°; it also includes the external space area 3 of the aero-engine, and there is an inclined space 31 in the external space area 3 of the aero-engine.

[0031] The saddle part 21 has a polishing layer 41, and the polishing layer is fixedly welded to the side wall of the original pipeline 1 at the measuring point hole 11 by brazing. The original pipeline 1 and the saddle part 21 are fixedly connected through a solder layer 42 for welding.

[0032] The saddle part 21 is in a semi-open arc shape, and the opening angle β of the saddle part 21 is 150° ± 5°.

Claims

1. A special-shaped pipeline in the external space of an aircraft engine based on a saddle-shaped oblique tee joint, characterized in that: include: An existing pipeline (1) and a saddle-shaped oblique tee joint (2) installed on the side wall of the pipeline (1), the saddle-shaped oblique tee joint (2).

2. The special-shaped pipeline in the external space of an aircraft engine based on a saddle-shaped oblique tee joint according to claim 1, characterized in that: A measuring point hole (11) is provided on the side wall of the original pipeline (1); the saddle-shaped oblique three-way joint (2) is installed at the measuring point hole (11) on the side wall of the original pipeline (1); The saddle-shaped oblique three-way joint (2) is divided into a saddle portion (21) and a pipe body portion (22). The saddle portion (21) is provided with a through hole communicating with the pipe body portion (22).

3. The special-shaped pipeline in the external space of an aircraft engine based on a saddle-shaped oblique tee joint according to claim 2, characterized in that: The end of the tube body (22) away from the measuring point hole (11) is a step; and the measuring element (24) is also included which is connected to the tube body (22) through a connecting conduit (23).

4. The aircraft engine external space special-shaped pipeline based on the saddle-shaped oblique tee joint according to claim 3, characterized in that: The connecting conduit (23) is inserted into the tube body (22) to a depth of 7 mm±1 mm.

5. The special-shaped pipeline in the external space of an aircraft engine based on a saddle-shaped oblique tee joint according to claim 2, characterized in that: The tube body (22) is distributed obliquely on the original pipeline (1), so that the axis of the tube body (22) and the axis of the original pipeline (1) are inclined at an angle α, and the angle α is 30°.

6. The special-shaped pipeline in the external space of an aircraft engine based on a saddle-shaped oblique tee joint according to claim 2, characterized in that: It also includes an aircraft engine external space region (3), wherein an inclined space (31) is provided in the aircraft engine external space region (3), and the measuring element (24) extends obliquely into the inclined space (31) located in the aircraft engine external space region (3).

7. The aircraft engine external space special-shaped pipeline based on the saddle-shaped oblique tee joint according to claim 2, characterized in that: The saddle portion (21) has a polished layer (41), and the polished layer is fixed to the side wall of the original pipeline (1) at the measuring point hole (11) by brazing; the original pipeline (1) and the saddle portion (21) are fixedly connected by a welded solder layer (42).

8. The aircraft engine external space special-shaped pipeline based on the saddle-shaped oblique three-way joint according to claim 2, characterized in that: The saddle portion (21) is in a semi-open arc shape, and the opening angle β of the saddle portion (21) is 150°±5°.

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