Quick-release ring suitable for wide-temperature-range fluid pipeline

Abstract

The invention discloses a quick-release ring suitable for a wide-temperature-range fluid pipeline. The quick-release ring comprises a rear section, a strap, a screw A, a nut B, a double-end bolt, a clamping ring, a labyrinth sealing structure and a hoop. When fluid with different temperatures circulates in the pipeline front section and the pipeline rear section, the labyrinth sealing structure provides sealing at the position of the outer diameter face of the rear installation edge and the inner diameter face of the front installation edge, the spacing distance between the shaft end faces of the front installation edge and the rear installation edge provides an axial size changing space, and the problem that in the prior art, the axial size changing sealing performance of the pipeline cannot be achieved is solved.

Description

Technical Field

[0001] The invention relates to a quick-release ring suitable for a fluid pipeline in a wide temperature range, belonging to the technical field of aero-engine fluid pipelines. Background Art

[0002] Pipes are mostly used for the circulation of fluid working media. Depending on the working medium, common pipes can be divided into pipes for liquids and pipes for gases. Generally speaking, a single section of a larger-sized pipe is often not long enough, so it is often installed in sections. In addition to requiring a reliable connection structure, the connection of the pipe also requires ease of operation, excellent sealing performance, and a wide temperature range of the working medium, which are all important design concerns. In particular, higher requirements are placed on the connection of the nozzle of the aircraft engine exhaust system. Usually, high-temperature and high-pressure gas flows through the nozzle, which places extremely high demands on the airtightness of the nozzle connection.

[0003] When fluids of different temperatures flow through the pipe, the sealing performance of the axial dimension change needs to be considered. The existing pipe docking technology, see Chinese patent publication number CN216242795U, although the two pipes are connected by inserting the slot on the axial direction of the docking sleeve, cannot guarantee the sealing performance of the axial dimension change of the pipe. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a quick-release ring suitable for fluid pipelines in a wide temperature range.

[0005] The present invention is achieved through the following technical solutions.

[0006] The present invention provides a quick-release ring suitable for a wide temperature range fluid pipeline, comprising:

[0007] The rear section includes hoop, screw A, nut B, stud bolts, retaining ring, comb teeth sealing structure and clamp.

[0008] The end of the rear section has a pipeline rear section, and the pipeline rear section is fixedly connected with a rear installation edge;

[0009] It also includes a front mounting edge spaced apart from the axial end surface of the rear mounting edge, the front mounting edge being fixedly connected with a front section of the pipeline, the front section of the pipeline being the end of the front section;

[0010] The spacing between the axial end faces of the front mounting edge and the rear mounting edge compensates for the axial variation dimensions of the thermal expansion and contraction of the front and rear sections of the pipeline and reduces vibration transmission.

[0011] The outer periphery of the rear mounting edge is radially provided with a comb tooth groove, and a comb tooth sealing structure is installed in the comb tooth groove; the front mounting edge can be slidably sleeved on the outside of the rear mounting edge, and the inner diameter surface of the front mounting edge contacts the comb tooth sealing structure.

[0012] It also includes a clamping ring, which is buckled on the shaft end faces that are relatively far away from the front mounting edge and the rear mounting edge, and the clamping ring fastens and wraps the front mounting edge and the rear mounting edge.

[0013] The clamp is composed of multiple sections; the outside of the clamp distributed in multiple sections has a corresponding hoop, and the hoop is composed of multiple sections.

[0014] The hoop is passed through by a clamp, and after the hoop passes through the clamp, both ends of the hoop are bent back and fixedly connected.

[0015] Nuts A and B are correspondingly installed at the two ends of the bent and turned back hoop.

[0016] The nut A and the nut B are screwed together by a stud bolt, the screwing directions of the threads at both ends of the stud bolt are opposite, and the screwing directions of the threads of the nut and the nut are opposite.

[0017] The beneficial effect of the present invention is that when fluids of different temperatures flow through the front section and the rear section of the pipeline, the comb tooth sealing structure provides sealing at the outer diameter surface of the rear installation edge and the inner diameter surface of the front installation edge, and the spacing distance between the axial end surfaces of the front installation edge and the rear installation edge provides axial variable size space, thereby solving the problem that the prior art cannot achieve sealing of pipeline axial size changes. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 yes Figure 1 A local enlarged schematic diagram of the middle A;

[0020] Figure 3 It is a front cross-sectional schematic diagram of the present invention;

[0021] Figure 4 yes Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0022] Figure 5 yes Figure 3 A partial enlarged schematic diagram of point C in the middle;

[0023] In the figure: 1-front section; 2-rear section; 3-quick release ring; 4-hoop; 5-nut A; 6-stud bolt; 7-nut B; 8-circlip; 9-rear mounting edge; 10-front mounting edge; 11-front section of the pipe; 12-rear section of the pipe; 13-comb tooth sealing structure. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0025] like Figures 1 to 5 shown.

[0026] The present application discloses a quick-release ring suitable for a wide temperature range fluid pipeline, comprising:

[0027] The front mounting edge 10 is fixedly connected to the front section 11 of the pipeline, and the rear mounting edge 9 is fixedly connected to the rear section 12 of the pipeline. The front mounting edge 10 and the rear mounting edge 9 have a spacing distance between the axial end faces, which can compensate for the axial change size of the thermal expansion and contraction of the front section 11 and the rear section 12 of the pipeline, and can also reduce vibration transmission.

[0028] The outer circumference of the rear mounting edge 9 is radially provided with a comb tooth groove, and a comb tooth sealing structure 13 is installed in the comb tooth groove; the front mounting edge 10 can be slidably sleeved on the outside of the rear mounting edge 9, and the inner diameter surface of the front mounting edge 10 contacts the comb tooth sealing structure 13. The front section 11 of the pipeline is the end of the front section 1; the rear section 12 of the pipeline is the end of the rear section 2.

[0029] When fluids of different temperatures flow through the front section 11 and the rear section 12 of the pipeline, the comb tooth sealing structure 13 provides sealing at the outer diameter surface of the rear mounting edge 9 and the inner diameter surface of the front mounting edge 10, and the spacing distance between the axial end surfaces of the front mounting edge 10 and the rear mounting edge 9 provides axial variable dimension space, thereby solving the problem that the prior art cannot achieve sealing performance for axial dimension variation of the pipeline.

[0030] It also includes a clamping ring 8, which is buckled onto the shaft end faces that are relatively far away from the front mounting edge 10 and the rear mounting edge 9. The clamping ring 8 tightens and wraps the front mounting edge 10 and the rear mounting edge 9, and the clamping ring 8 limits the front mounting edge 10 and the rear mounting edge 9 from expanding axially outward.

[0031] The clamp ring 8 is composed of multiple sections; the outer side of the clamp ring 8 with multiple sections has a corresponding hoop 4, and the hoop 4 is composed of multiple sections; the hoop 14 passes through the hoop 14, and after the hoop 4 passes through the hoop 14, both ends of the hoop 4 are bent back and fixedly connected.

[0032] Nuts A5 and B7 are installed at the two ends of the bent and turned back band 4, and nuts A5 and B7 are screwed together by stud bolts 6. The screwing directions of the two ends of the stud bolts 6 are opposite, and the screwing directions of the threads of the nut 5 and the nut 7 are also opposite. By tightening or loosening the stud bolts 6, the adjacent bands 4 are tightened or loosened.

[0033] The rear section 2, the band 4, the screw A5, the nut B7, the stud bolt 6, the clamping ring 8, the comb teeth sealing structure 13 and the clamping hoop 14 constitute the quick release ring 3.

Claims

1. A quick-release ring suitable for a wide temperature range fluid pipeline, characterized in that: include: The rear section (2) comprises a hoop (4), a screw A (5), a nut B (7), a stud bolt (6), a clamping ring (8), a comb tooth sealing structure (13) and a clamping hoop (14).

2. The quick-release ring suitable for wide temperature range fluid pipeline according to claim 1, characterized in that: The end of the rear section (2) is provided with a pipeline rear section (12), and the pipeline rear section (12) is fixedly connected with a rear installation edge (9); It also includes a front mounting edge (10) spaced apart from the axial end surface of the rear mounting edge (9), the front mounting edge (10) being fixedly connected to a front section of a pipeline (11), the front section of the pipeline (11) being the end of the front section (1); The spacing distance between the axial end faces of the front mounting edge (10) and the rear mounting edge (9) supplements the axial variation dimensions of the pipeline front section (11) and the pipeline rear section (12) due to thermal expansion and contraction, and reduces vibration transmission.

3. The quick-release ring suitable for wide temperature range fluid pipeline according to claim 2, characterized in that: The outer circumference of the rear mounting edge (9) is radially provided with a comb tooth groove, and a comb tooth sealing structure (13) is installed in the comb tooth groove; the front mounting edge (10) can be slidably sleeved on the outside of the rear mounting edge (9), and the inner diameter surface of the front mounting edge (10) contacts the comb tooth sealing structure (13).

4. The quick-release ring suitable for a wide temperature range fluid pipeline according to claim 3, characterized in that: It also includes a clamping ring (8), which is buckled onto the shaft end faces that are relatively far away from the front mounting edge (10) and the rear mounting edge (9), and the clamping ring (8) buckles and wraps the front mounting edge (10) and the rear mounting edge (9).

5. The quick-release ring suitable for a wide temperature range fluid pipeline according to claim 4, characterized in that: The clamp ring (8) is composed of multiple sections; the outside of the clamp ring (8) distributed in multiple sections has a corresponding hoop (4), and the hoop (4) is composed of multiple sections.

6. The quick-release ring suitable for a wide temperature range fluid pipeline according to claim 5, characterized in that: The band (4) is penetrated by a clamp (14), and after the band (4) passes through the clamp (14), both ends of the band (4) are bent back and fixedly connected.

7. The quick-release ring suitable for a wide temperature range fluid pipeline according to claim 6, characterized in that: Nuts A (5) and nut B (7) are correspondingly installed at the two ends of the bent back hoop (4).

8. The quick-release ring suitable for a wide temperature range fluid pipeline according to claim 7, characterized in that: The nut A (5) and the nut B (7) are screwed together by a stud bolt (6), the screwing directions of the threads at both ends of the stud bolt (6) are opposite, and the screwing directions of the threads of the nut (5) and the nut (7) are opposite.

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