Rocket delivery pipe structure and supporting device
By adopting a curved reinforcing rib design in the rocket delivery pipe structure, the leakage problem caused by stress concentration in the bent pipe was solved, thereby improving the reliability of the pipe and the safety of the rocket.
Patent Information
- Application Number
- CN202520189131.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-02-07
AI Technical Summary
The bends in existing rocket propulsion pipelines are prone to being punctured by reinforcing ribs due to stress concentration, leading to media leakage and affecting rocket safety.
Design a rocket delivery tube structure, which adopts a bent tube and a reinforcing rib with an arc. The arc is located in the middle of the reinforcing rib, with an angle of 100° to 160°. The reinforcing rib bends in the same direction as the bent tube. The shape is a long strip plate with a thickness of 2mm to 10mm and a quantity of 1 to 4. They are connected by integral molding to avoid stress concentration.
This effectively avoids stress concentration at the connection between the reinforcing ribs and the pipeline, reduces maximum stress, improves pipeline reliability, and ensures safe rocket flight.
Smart Images
Figure CN223609635U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to rocket storage tank technical field especially relates to a rocket conveying pipe structure and supporting device. BACKGROUND
[0002] With the rapid development of space industry, all kinds of technologies related to rockets have also made great progress. The power pipeline system is one of the most important subsystems of the launch vehicle, and its basic function is to transport specified media, such as liquid propellants, pressurized gases, etc. to the use location.
[0003] At present, due to the various forms and types of power pipelines on rockets, they usually need to be installed on the outer wall of the rocket body and span multiple cabin sections. In order to facilitate installation, the power pipelines are mostly folded pipelines. The folded pipelines are prone to deformation under pressure when in use, causing pipeline damage.
[0004] At present, in order to prevent the deformation of the folded pipeline, a common straight plate type reinforcing rib is usually added at both ends of the folded part of the pipeline, but the root of the straight plate type reinforcing rib is prone to stress concentration, while the stress of other parts of the reinforcing rib is very small, causing the overall stress distribution to be extremely uneven. In addition, the root of the straight plate type reinforcing rib is very easy to pierce the pipeline, causing the internal medium of the pipeline to leak, thereby affecting the safety of the entire rocket.
[0005] There is an urgent need to provide a rocket conveying pipe structure to prevent the folded pipeline from being pierced by the reinforcing rib and improve the reliability of the folded pipeline. SUMMARY
[0006] The utility model aims at overcoming the defects of prior art, provides a kind of rocket conveying pipe structure, can avoid the folded pipeline to be pierced by reinforcing rib, improve the reliability of the folded pipeline.
[0007] The utility model provides a kind of rocket conveying pipe structure, including elbow, flange and at least one reinforcing rib with bend, wherein the flange is located at one end of the elbow and is fixedly connected with the elbow, one end of the reinforcing rib is connected with the end face of the flange close to the side of the elbow, the other end of the reinforcing rib is fixedly connected with the outer surface of the elbow and the middle part is spaced apart from the folded part of the elbow, and the reinforcing rib is arranged on the same side of the elbow.
[0008] Further, the bend on the reinforcing rib is located at the middle part of the reinforcing rib, the bend is curved in the same direction as the elbow, and the angle A of the bend satisfies 100 ° ≤ A ≤ 160 °.
[0009] Further, the reinforcing rib is substantially in the shape of a long strip, and the thickness of the long strip is D, wherein 2 mm ≤ D ≤ 10 mm.
[0010] Further, the number of the reinforcing ribs is C, 1≤C≤4.
[0011] Further, the number of the reinforcing ribs is C, 1≤C≤2.
[0012] Further, the reinforcing rib is tightly connected with the outer surface of the elbow pipe away from the outer surface of the one end of the flange.
[0013] Further, the elbow pipe, the flange and the reinforcing rib are integrally formed.
[0014] Further, the elbow pipe is L-shaped or S-shaped elbow pipe.
[0015] Further, the elbow pipe, the flange and the reinforcing rib are made of stainless steel.
[0016] The utility model also provides a supporting device which contains an elbow pipe, at least one reinforcing rib with a bending arc and a set of locking sleeves, the locking sleeves are detachably arranged at both ends of the elbow pipe, and the two ends of the reinforcing rib are fixedly connected with the locking sleeves which are close to each other.
[0017] Compared with the prior art, the utility model has at least one of the following beneficial effects:
[0018] The utility model discloses an embodiment provides a kind of rocket conveying pipe structure, one end of its reinforcing rib is connected with the end face of flange close to the side of elbow pipe, the other end of reinforcing rib is fixedly connected with the outer surface of elbow pipe and the middle part is spaced apart from the bending part of elbow pipe, reinforcing rib is arranged on the same side of elbow pipe. The whole reinforcing rib can weaken the rigidity of reinforcing rib end, make reinforcing rib and pipeline more matched, avoid stress concentration at the connecting place of reinforcing rib and pipeline, reduce maximum stress, simultaneously make maximum stress from pipe wall \ flange transfer to the bending part of reinforcing rib, to avoid pipeline being poked, improve the reliability of pipeline after being loaded, be favorable to the safe flight of rocket.
[0019] It should be appreciated that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the range of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0020] The following drawings are part of the specification of the utility model, which illustrates the example embodiment of the utility model, and the attached drawings and the description of the specification are used to illustrate the principle of the utility model.
[0021] Figure 1 It is the structure schematic view of rocket conveying pipe structure in the utility model embodiment;
[0022] Figure 2 It is the force comparison drawing of rocket conveying pipe structure and reinforcing rib in the utility model embodiment;
[0023] Figure 3 Figure 1 is a structural schematic diagram of a support device in the embodiments of the present application.
[0024] Reference signs:
[0025] 1 elbow 2 flange
[0026] 3 reinforcing rib 4 locking sleeve DETAILED DESCRIPTION
[0027] The various exemplary embodiments of the present application will now be described in detail, which should not be considered as limiting the present application, but should be understood as a more detailed description of certain aspects, features and embodiments of the present application.
[0028] Various modifications and changes can be made to the specific implementation of the present application described in the specification without departing from the scope or spirit of the present application, which will be apparent to those skilled in the art. Other implementations of the present application will be apparent to those skilled in the art from the specification. The specification and examples of the present application are merely exemplary.
[0029] As shown in Figure 1 and Figure 2 The present application provides a rocket conveying pipe structure, which comprises an elbow 1, a flange 2 and at least one reinforcing rib 3 with a curved arc. The flange 2 is located at one end of the elbow 1 and is fixedly connected with the elbow 1. One end of the reinforcing rib 3 is connected with the end face of the flange 2 close to one side of the elbow 1, and the other end of the reinforcing rib 3 is fixedly connected with the outer surface of the elbow 1 and the middle part is spaced apart from the bent part of the elbow 1. The reinforcing rib 3 is arranged on the same side of the elbow 1.
[0030] Specifically, the rocket conveying pipe structure provided by the embodiments of the present application can weaken the rigidity of the end of the reinforcing rib 3 by arranging the reinforcing rib 3 on the same side of the elbow 1 and spacing the middle part of the reinforcing rib 3 from the bent part of the elbow 1, so that the reinforcing rib 3 is more matched with the pipe 1. In addition, the reinforcing rib 3 and the pipe 1 connection can also avoid stress concentration by the structure and arrangement of the reinforcing rib, reduce the maximum stress, and transfer the maximum stress from the pipe wall\flange to the bent part of the reinforcing rib 3, so as to avoid the pipe being poked and broken, improve the reliability of the pipe 1 after being loaded, and facilitate the safe flight of the rocket.
[0031] In the same embodiment, in order to reduce the stress between the reinforcing rib 3 and the elbow pipe 1 and the flange 2, for example, the bending arc on the reinforcing rib 3 is located at the middle part of the reinforcing rib 3, and the bending arc is bent in the same direction as the elbow pipe. Through a large number of experiments and simulations, when the angle A of the bending arc satisfies 100°≤A≤160°, not only the stress between the reinforcing rib 3 and the elbow pipe 1 and the flange 2 can be reduced, but also the maximum stress of the pipeline can be quickly concentrated on the bending arc part of the reinforcing rib 3, that is, the middle part of the reinforcing rib 3, so that the pipeline 1 is prevented from being punctured, and the reliability of the pipeline 1 after being overloaded is improved.
[0032] In the same embodiment, in order to meet the hardness of the reinforcing rib 3, for example, the outer shape of the reinforcing rib 3 is approximately a long strip plate, and the thickness D of the long strip plate satisfies 2mm≤D≤10mm, so that the hardness and weight reduction requirements of the reinforcing rib 3 can be considered at the same time, and the fixed connection of the reinforcing rib 3 and the pipeline 1 is also facilitated.
[0033] In the same embodiment, in order to further improve the deformation resistance of the bending part of the pipeline 1, for example, the number C of the reinforcing ribs 3 satisfies 1≤C≤4. In actual application, in order to ensure that the bending part of the pipeline does not deform and reduce the weight of the entire pipeline system, for example, the number C of the reinforcing ribs 3 further satisfies 1≤C≤2, and fewer reinforcing ribs can also increase the operation space and facilitate the installation and disassembly of subsequent parts.
[0034] In the same embodiment, in order to further avoid that the reinforcing rib 3 punctures the pipeline and improve the flexibility and strength of the entire system, for example, the outer side surface of the end of the reinforcing rib 3 away from the flange is tightly attached to and fixedly connected with the outer surface of the elbow pipe 1.
[0035] In the same embodiment, in order to make the connection of the elbow pipe 1, the flange 2 and the reinforcing rib 3 more closely and the fixation more firmly, for example, the elbow pipe 1, the flange 2 and the reinforcing rib 3 are integrally formed.
[0036] In the embodiment, the elbow pipe 1 is an L-shaped or S-shaped elbow pipe.
[0037] In the same embodiment, in order to improve the pressure resistance and high-temperature resistance of the elbow pipe 1, the flange 2 and the reinforcing rib 3, for example, the materials of the elbow pipe 1, the flange 2 and the reinforcing rib 3 are stainless steel materials. The stainless steel materials in the application include but are not limited to stainless steel 301, 304, 316, 316L, 321 and the like.
[0038] The utility model also provides a supporting device. Figure 1 and Figure 3As shown, the support device comprises a bent pipe, at least one reinforcing rib 3 with a bent arc, and a set of locking sleeves 4. The locking sleeves 4 are detachably arranged at the two ends of the bent pipe 1, and the two ends of the reinforcing rib 3 are fixedly connected with the locking sleeves 4 close to each other. In the support device of the application, the connection of the reinforcing rib and the bent pipe is realized through the cooperation of the reinforcing rib 3 and the locking sleeve (the locking sleeve is locked on the bent pipe, and the locking sleeve has a structure such as a clamp), and the size (diameter) of the locking sleeve 4 is adjusted to adapt to bent pipes of different diameters. The whole support device has the advantages of convenient installation and disassembly, wide application, etc.
[0039] The above merely illustrates the specific implementation of the present application, and any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present application shall belong to the protection scope of the present application.
Claims
1. A rocket delivery tube structure, characterized by, The elbow pipe, the flange and the at least one reinforcing rib with a bending arc are provided, wherein the flange is located at one end of the elbow pipe and fixedly connected with the elbow pipe, one end of the reinforcing rib is connected with the end face of the flange close to the elbow pipe, the other end of the reinforcing rib is fixedly connected with the outer surface of the elbow pipe and the middle part is spaced apart from the bending part of the elbow pipe, and the reinforcing rib is arranged on the same side of the elbow pipe.
2. The rocket delivery tube structure according to claim 1, characterized by The bending arc on the reinforcing rib is located at the middle part of the reinforcing rib, the bending arc is bent in the same direction as the elbow pipe, and the angle A of the bending arc satisfies 100°≤A≤160°.
3. The rocket delivery tube structure of claim 1, wherein The reinforcing rib is substantially in the shape of a long strip plate, and the thickness of the long strip plate is D, wherein 2mm≤D≤10mm.
4. The rocket delivery tube structure of claim 1, wherein The number of the reinforcing ribs is C, and 1≤C≤4.
5. The rocket conveyor tube structure according to claim 4, wherein The number of the reinforcing ribs is C, and 1≤C≤2.
6. The rocket delivery tube structure of claim 1, wherein The outer side surface of the end of the reinforcing rib away from the flange is tightly attached to and fixedly connected with the outer surface of the elbow pipe.
7. The rocket delivery tube structure according to claim 1, wherein The elbow pipe, the flange and the reinforcing rib are integrally formed.
8. The rocket delivery tube structure of claim 1, wherein, The elbow pipe is an L-shaped or S-shaped elbow pipe.
9. The rocket delivery tube structure of claim 1, wherein, The elbow pipe, the flange and the reinforcing rib are made of stainless steel.
10. A support device characterized by, The elbow pipe, the at least one reinforcing rib with a bending arc and a set of locking sleeves are provided, the locking sleeves are detachably arranged at two ends of the elbow pipe, and the two ends of the reinforcing rib are fixedly connected with the locking sleeves close to each other.