Guide bracket for low-temperature fuel exhaust pipeline of rocket

Abstract

The utility model provides a guide bracket for a low-temperature rocket exhaust pipeline of a rocket, belongs to the technical field of aviation, and aims to solve the problem that equipment connected to the upper part of a low-temperature fuel discharge pipeline is easily pulled and damaged when the low-temperature fuel discharge pipeline integrally descends after being shrunk in cold. According to the guide bracket for the low-temperature fuel exhaust pipeline of the rocket, provided by the utility model, a through hole is formed in a support; and the guide baffle is cylindrical. The guide baffle is arranged in the through hole in a sliding mode. The guide baffle is arranged on the periphery of the low-temperature exhaust pipeline in a sleeving mode and fixedly connected with the low-temperature exhaust pipeline. A limiting structure is arranged on the outer wall of the guide baffle and located above the support so as to limit the guide baffle to slide towards the position below the support. The heat insulation plate is arranged on the support and arranged between the inner wall of the through hole and the outer wall of the guide baffle in a spaced mode. According to the scheme, the low-temperature fuel exhaust pipeline can be prevented from moving downwards, and friction between the low-temperature fuel exhaust pipeline and the tower in the moving process is prevented.

Description

Technical Field

[0001] The utility model belongs to the field of aviation technology, and in particular relates to a guide bracket used for a rocket cryogenic fuel exhaust pipeline. Background Art

[0002] Aviation equipment generally uses cryogenic hydrogen and cryogenic oxygen as fuel. Hydrogen or oxygen in a low-temperature state is in liquid state. During the discharge process, it generally needs to pass through a cryogenic fuel exhaust pipeline. The vertical section of the cryogenic fuel exhaust pipeline mostly uses hard pipes, which are prone to overall upward or downward movement after shrinking when exposed to cold. When the cryogenic fuel exhaust pipeline descends, it will cause pulling damage to the equipment connected to the upper part of the cryogenic fuel exhaust pipeline, causing it to lose its function. In addition, the cryogenic fuel exhaust pipeline is prone to friction with the tower during the process of moving up or down, causing damage to the cryogenic fuel exhaust pipeline, which in turn creates a safety hazard. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to provide a guide bracket for a rocket cryogenic fuel exhaust pipeline, which can prevent the cryogenic fuel exhaust pipeline from moving downward and prevent the cryogenic fuel exhaust pipeline from rubbing against the tower during movement.

[0004] In order to solve the above problems, the utility model provides a guide bracket for a rocket cryogenic fuel exhaust pipeline, comprising: a support, a guide baffle and a heat insulation board. A through hole is provided on the support. The guide baffle is cylindrical. The guide baffle is slidably arranged in the through hole. The guide baffle is sleeved on the outer periphery of the cryogenic exhaust pipeline and is fixedly connected to the cryogenic exhaust pipeline. A limiting structure is provided on the outer wall of the guide baffle, and the limiting structure is located above the support to limit the guide baffle from sliding downward to the support. The heat insulation board is arranged on the support, and the heat insulation board is spaced between the inner wall of the through hole and the outer wall of the guide baffle.

[0005] Optionally, the limiting structure includes a mounting hole and a limiting cylinder. The mounting hole is arranged on the side wall of the guide baffle. The limiting cylinder is arranged in the mounting hole and extends to the outside of the guide baffle. The limiting cylinder abuts against the top of the heat insulation board.

[0006] Optionally, the guide baffle includes a pair of arc-shaped baffles, which are arranged opposite to each other and form a cylindrical shape.

[0007] Optionally, there are two limiting structures, and the two limiting structures are symmetrically arranged on a pair of arc-shaped baffles.

[0008] Optionally, the heat insulation board includes a first arc segment and a second arc segment, and the first arc segment and the second arc segment are arranged on the support at intervals along the circumference of the through hole.

[0009] Optionally, the support includes a square frame, and the through hole penetrates from the top surface of the square frame to the bottom surface of the square frame.

[0010] Optionally, the square frame is welded from galvanized angle steel.

[0011] Optionally, there is a gap between the outer wall of the guide baffle and the inner wall of the through hole, and the heat insulation board is embedded in the gap.

[0012] Optionally, the heat insulation board is made of resin.

[0013] Optionally, the outer wall of the guide baffle is wrapped with a heat insulating foam layer.

[0014] Beneficial Effects

[0015] The guide bracket for rocket cryogenic fuel exhaust pipeline provided in the embodiment of the utility model comprises a support, a guide baffle and a heat insulation board. The guide baffle is slidably arranged in the through hole of the support, and a limiting structure is arranged on the outer wall of the guide baffle, and the limiting structure is located above the support to prevent the guide baffle from moving downward in the through hole to the support. The heat insulation board is arranged on the support and is spaced between the inner wall of the through hole and the outer wall of the guide baffle. When in use, the support is welded on the ground of the tower layer, and the vertical section of the cryogenic fuel exhaust pipeline passes through the guide baffle and is fixedly connected to the guide baffle. When the vertical section of the cryogenic fuel exhaust pipeline moves downward due to the cold, since the vertical section of the cryogenic fuel exhaust pipeline is fixedly connected to the guide baffle, a limiting structure is arranged on the outer wall of the guide baffle, and the limiting structure abuts against the support, it can limit the vertical section of the cryogenic fuel exhaust pipeline from moving downward due to the cold, and prevent the equipment connected to the upper part of the cryogenic fuel exhaust pipeline from being pulled and damaged, so that it loses its function. When the vertical section of the cryogenic fuel exhaust pipeline moves upward due to the cold, since the guide baffle is slidably arranged in the through hole of the support and the vertical section of the cryogenic fuel exhaust pipeline is fixedly connected to the guide baffle, the guide baffle can move upward synchronously with the vertical section of the cryogenic fuel exhaust pipeline, thereby protecting the cryogenic fuel exhaust pipeline, preventing friction between the cryogenic fuel exhaust pipeline and the external supporting structure, avoiding damage to the pipeline, and preventing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a guide bracket for a rocket cryogenic fuel exhaust pipeline according to an embodiment of the utility model;

[0017] Figure 2 A front view of a guide bracket for a rocket cryogenic fuel exhaust pipeline according to an embodiment of the utility model;

[0018] Figure 3 A side view of a guide bracket for a rocket cryogenic fuel exhaust pipeline according to an embodiment of the utility model;

[0019] Figure 4A top view of a guide bracket for a rocket cryogenic fuel exhaust pipeline according to an embodiment of the utility model.

[0020] The reference numerals are as follows:

[0021] 1. Support; 2. Guide baffle; 3. Limiting structure; 4. Heat insulation board. DETAILED DESCRIPTION

[0022] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, in the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a guide bracket for a rocket cryogenic fuel exhaust pipeline provided in this embodiment. Figure 2 A front view of a guide bracket for a rocket cryogenic fuel exhaust pipeline provided in this embodiment. Figure 3 A side view of a guide bracket for a rocket cryogenic fuel exhaust pipeline provided in this embodiment. Figure 4 A top view of a guide bracket for a rocket cryogenic fuel exhaust pipeline provided in this embodiment.

[0026] like Figures 1 to 4As shown, the guide bracket for the rocket cryogenic fuel exhaust pipeline of this embodiment includes a support 1, a guide baffle 2 and a heat insulation plate 4. A through hole is provided on the support 1. The guide baffle 2 is cylindrical. The guide baffle 2 is slidably arranged in the through hole. The guide baffle 2 is sleeved on the outer periphery of the cryogenic exhaust pipeline and is fixedly connected to the cryogenic exhaust pipeline. A limiting structure 3 is provided on the outer wall of the guide baffle 2, and the limiting structure 3 is located above the support 1 to limit the guide baffle 2 from sliding downward from the support 1. The heat insulation plate 4 is arranged on the support 1, and the heat insulation plate 4 is spaced between the inner wall of the through hole and the outer wall of the guide baffle 2.

[0027] The guide bracket for rocket cryogenic fuel exhaust pipeline of this embodiment includes a support 1, a guide baffle 2 and a heat insulation board 3. The guide baffle 2 is slidably arranged in the through hole of the support 1, and a limiting structure 3 is arranged on the outer wall of the guide baffle 2. The limiting structure 3 is located above the support 1 to prevent the guide baffle 2 from moving downward in the through hole to the bottom of the support 1. The heat insulation board 4 is arranged on the support 1 and is spaced between the inner wall of the through hole and the outer wall of the guide baffle 2. When in use, the support 1 is welded to the ground of the tower layer, and the vertical section of the cryogenic fuel exhaust pipeline passes through the guide baffle 2 and is fixedly connected to the guide baffle 2. When the vertical section of the cryogenic fuel exhaust pipeline moves downward due to the cold, since the vertical section of the cryogenic fuel exhaust pipeline is fixedly connected to the guide baffle 2, the limiting structure 3 is arranged on the outer wall of the guide baffle 2, and the limiting structure 3 abuts against the support 1, it can limit the vertical section of the cryogenic fuel exhaust pipeline from moving downward due to the cold, and prevent the equipment connected to the upper part of the cryogenic fuel exhaust pipeline from being pulled and damaged, so that it loses its function. When the vertical section of the cryogenic fuel exhaust pipeline moves upward due to the cold, since the guide baffle 2 is slidably arranged in the through hole of the support 1 and the vertical section of the cryogenic fuel exhaust pipeline is fixedly connected to the guide baffle 2, the guide baffle 2 can move upward synchronously with the vertical section of the cryogenic fuel exhaust pipeline, thereby protecting the cryogenic fuel exhaust pipeline, preventing friction between the cryogenic fuel exhaust pipeline and the external supporting structure, avoiding damage to the pipeline, and preventing safety hazards.

[0028] In some embodiments, Figures 1 to 4 As shown, the limiting structure 3 includes a mounting hole and a limiting cylinder. The mounting hole is arranged on the side wall of the guide baffle 2. The limiting cylinder is arranged in the mounting hole and extends to the outside of the guide baffle 2. The limiting cylinder abuts against the top of the heat insulation board 4. The limiting structure 3 of this embodiment includes a mounting hole and a limiting cylinder. The mounting hole is arranged on the side wall of the guide baffle 2, which is beneficial to reducing the contact area between the guide baffle 2 and the low-temperature exhaust pipeline, and can reduce the stress on the guide baffle 2 when it is deformed by cold. The limiting cylinder is arranged in the mounting hole. On the one hand, it can play a supporting and limiting role. On the other hand, the use of the limiting cylinder will not block the mounting hole, and the interior of the guide baffle 2 can be connected to the outside through the mounting hole and the limiting cylinder, which is convenient for the installation and use of the guide baffle 2.

[0029] In some embodiments, Figures 1 to 4 As shown, the guide baffle 2 includes a pair of arc-shaped baffles, which are arranged opposite to each other and form a cylindrical shape. The guide baffle 2 of this embodiment is surrounded by a pair of arc-shaped baffles. When installing, the two arc-shaped baffles can be first buckled on the low-temperature exhaust pipeline, and then the two arc-shaped baffles are connected by welding to form a cylindrical guide baffle 2. There is no need to disassemble one end of the low-temperature exhaust pipeline and then install the guide baffle 2. The guide baffle 2 is surrounded by a pair of arc-shaped baffles, which is convenient for installing the guide baffle 2 on the low-temperature exhaust pipeline.

[0030] In some embodiments, Figures 1 to 4 As shown, there are two limiting structures 3, and the two limiting structures 3 are symmetrically arranged on a pair of arc-shaped baffles. In this embodiment, there are two limiting structures 3, each of which is arranged on an arc-shaped baffle and is symmetrical to each other, which can provide more stable support and limiting for the guide baffle 2. However, it should be noted that in other embodiments, the number of limiting structures 3 can also be more than two.

[0031] In some embodiments, Figures 1 to 4 As shown, the heat insulation board 4 includes a first arc segment and a second arc segment, and the first arc segment and the second arc segment are arranged on the support 1 at intervals along the circumference of the through hole. The heat insulation board 4 of this embodiment is designed as a segmented structure, including a first arc segment and a second arc segment, and the first arc segment and the second arc segment are arranged at intervals in the circumference of the through hole, which can not only block the contact between the guide baffle 2 and the through hole, but also reduce the contact area between the guide baffle 2 and the heat insulation board 4, thereby reducing the friction between the guide baffle 2 and the heat insulation board 4.

[0032] In some embodiments, Figures 1 to 4 As shown, the support 1 includes a square frame, and the through hole runs from the top surface of the square frame to the bottom surface of the square frame. The support 1 of this embodiment adopts a square frame, which has a better fit with the tower layer ground (iron plate), and the square frame can have good firmness and is easy to process and manufacture. However, it can be understood that in other embodiments, the support 1 can also adopt other polygonal frames, and this embodiment does not impose too many restrictions on this.

[0033] In some embodiments, see Figures 1 to 4 The square frame is welded by galvanized angle steel. The square frame of this embodiment is welded by galvanized angle steel, which has good structural strength and good corrosion resistance, and is easy to obtain, which is conducive to controlling material costs.

[0034] In some embodiments, Figures 1 to 4As shown, there is a gap between the outer wall of the guide baffle 2 and the inner wall of the through hole. The heat insulation board 4 is embedded in the gap. In this embodiment, the heat insulation board 4 is embedded in the gap between the outer wall of the guide baffle 2 and the inner wall of the through hole, which can block the heat transfer between the guide baffle 2 and the support 1, thereby reducing the heat transfer between the low-temperature hydrogen and the environment, and can also reduce the impact of the low temperature on the support 1, preventing the support 1 from being deformed by cold.

[0035] In some embodiments, see Figures 1 to 4 , the heat insulation board 4 is made of resin. The partition board 4 of this embodiment is made of resin, which can have good low temperature resistance and heat insulation.

[0036] In some embodiments, see Figures 1 to 4 , the outer wall of the guide baffle 2 is wrapped with a heat insulating foam layer. In this embodiment, the outer wall of the guide baffle 2 is wrapped with a heat insulating foam layer, which can reduce the heat exchange between the low-temperature pipeline and the environment and ensure the quality of the liquid hydrogen fuel in the low-temperature pipeline.

[0037] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. The above are only preferred implementations of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention, and these improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A guide bracket for a rocket cryogenic fuel exhaust pipeline, characterized in that: include: A support, wherein the support is provided with a through hole; A guide baffle, the guide baffle is cylindrical; the guide baffle is slidably arranged in the through hole; the guide baffle is sleeved on the outer periphery of the low-temperature exhaust pipeline and is fixedly connected to the low-temperature exhaust pipeline; a limiting structure is arranged on the outer wall of the guide baffle, and the limiting structure is located above the support to limit the guide baffle from sliding below the support; A heat insulation board is arranged on the support; and the heat insulation board is spaced between the inner wall of the through hole and the outer wall of the guide baffle.

2. The guide bracket for rocket cryogenic fuel exhaust pipeline according to claim 1, characterized in that: The limiting structure comprises: A mounting hole is provided on the side wall of the guide baffle; A limiting cylinder is arranged in the mounting hole and extends toward the outside of the guide baffle; the limiting cylinder abuts against the top of the heat insulation board.

3. The guide bracket for rocket cryogenic fuel exhaust pipeline according to claim 1, characterized in that: The guide baffle includes a pair of arc-shaped baffles, which are arranged facing each other and form a cylindrical shape.

4. The guide bracket for rocket cryogenic fuel exhaust pipeline according to claim 3, characterized in that: There are two limiting structures, and the two limiting structures are symmetrically arranged on the pair of arc-shaped baffles.

5. The guide bracket for rocket cryogenic fuel exhaust pipeline according to claim 1, characterized in that: The heat insulation board comprises a first arc segment and a second arc segment, and the first arc segment and the second arc segment are arranged on the support at intervals along the circumference of the through hole.

6. The guide bracket for rocket cryogenic fuel exhaust pipeline according to claim 1, characterized in that: The support comprises a square frame, and the through hole penetrates from the top surface of the square frame to the bottom surface of the square frame.

7. The guide bracket for rocket cryogenic fuel exhaust pipeline according to claim 6, characterized in that: The square frame is welded from galvanized angle steels.

8. The guide bracket for rocket cryogenic fuel exhaust pipeline according to claim 1, characterized in that: There is a gap between the outer wall of the guide baffle and the inner wall of the through hole; the heat insulation board is embedded in the gap.

9. The guide bracket for rocket cryogenic fuel exhaust pipeline according to claim 1, characterized in that: The heat insulation board is made of resin.

10. The guide bracket for rocket cryogenic fuel exhaust pipeline according to claim 1, characterized in that: The outer wall of the guide baffle is wrapped with a heat insulating foam layer.

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