Storage box structure

Abstract

The utility model discloses a storage tank structure, which relates to the technical field of rocket storage tanks and comprises a storage tank middle cylinder, an upper seal head and a lower seal head. Each of the upper and lower sealing heads comprises a sealing head light plate and a sealing head bracket; the support is arranged in the storage box, so that the structural stability and the bearing capacity of the storage box are enhanced; the support vertical beams are parallel to the axis of the storage box middle cylinder, so that the stress distribution of the storage box under stress is optimized, local stress concentration is reduced, and the durability and reliability of the storage box are improved; due to the uniform division and through seam design of the support ring beam and the hinging mode of the ring beam fixing plates, the manufacturing process is simplified, the manufacturing efficiency is improved, and meanwhile the multiple layers of ring beam positioning blocks which are annularly arranged are beneficial to improving the assembling accuracy and reliability; the design that the detection sensors are fixedly installed on the middle cylinder support and the end socket support enables detection and maintenance of the storage box to be more convenient, the state of the storage box can be monitored in real time, and safe operation of the storage box is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of rocket storage tank technology, specifically a storage tank structure. Background Technology

[0002] The propellant tank is a section of a launch vehicle in the prior art used to store propellant and transfer flight loads. The middle cylinder of the propellant tank has a cylindrical structure and is mainly used to bear internal pressure loads. The propellant tank generally adopts a rigid shell cylindrical structure, but when subjected to coupled loads of axial compression, bending moment and concentrated force, it is necessary to arrange a stiffening reinforcement structure on the propellant tank.

[0003] Traditional storage tanks use a mesh-reinforced structure to withstand axial compression and bending moment loads. This involves mechanically or chemically milling a series of custom-made meshes onto a solid thick plate. However, the mesh-reinforced structure presents the following technical problems:

[0004] (1) Due to the limited speed of the milling cutter, the processing of this mesh takes a long time. Once the mesh parameters are determined, any changes will cause the processing program to be restarted. If there is a mistake in processing the ribs, the entire panel will be scrapped, resulting in high production costs.

[0005] (2) The mesh-reinforced structure is integrally reinforced, so the customized mesh parameters are only applicable to a small range of axial compression and bending moment loads. For concentrated forces, a specially made dense mesh is required. If the load increases, all mesh parameters must be redesigned, and the product has a narrow range of load adaptability.

[0006] (3) Sensors and measuring instruments are usually installed on the inner wall of the tank. For this densely distributed overall grid structure, the accessories inside the tank can only be installed in the center of the grid. Thickened bosses are set in the grid area, and the instruments are welded to the bracket. The size design of the bracket must avoid the interference of the ribs, resulting in poor installation flexibility. Utility Model Content

[0007] The purpose of this utility model is to provide a storage tank structure to solve the problems mentioned in the background art, which is that traditional storage tanks use a mesh-reinforced structure to bear axial compression and bending moment loads. That is, a series of customized meshes are machined or chemically milled on a whole thick plate. However, the mesh-reinforced structure has problems such as high production cost, need to be redesigned according to different loads, and difficulty in installing sensors and other detection instruments.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a storage tank structure, comprising a cylindrical storage tank inner cylinder and an upper storage tank head and a lower storage tank head respectively provided at its upper and lower ends; the storage tank inner cylinder includes a cylindrical storage tank outer cylinder and an inner cylinder support, the inner cylinder support including multiple vertical support beams arranged in a ring, and a ring support beam arranged in a ring on the inner side of the support beams; the upper and lower storage tank heads have the same structure, both including a head plate arranged in a bowl shape on the outer side and a head support arranged in a bowl shape on the inner side; the head support includes multiple head beams arranged in an arc shape and fixed to the inner wall of the head plate, the vertical planes on which the head beams are located are arranged parallel to each other, and multiple head beams are arranged on the multiple head beams.

[0009] Preferably, the support vertical beam is arranged parallel to the axis of the storage tank cylinder, including a vertical beam bottom plate fixed to the inner wall of the storage tank cylinder at the middle, and vertical beam side plates perpendicular to it are provided on both sides of the vertical beam bottom plate, and vertical beam bends extending in opposite directions are provided on the sides of the two vertical beam side plates away from the vertical beam bottom plate.

[0010] Preferably, the support ring beam is evenly divided into multiple parts of the same specification, each part including an arc-shaped ring beam main board, and the side of the ring beam main board near the storage tank light tube is provided with a through slit that matches the support vertical beam.

[0011] Preferably, the ring beam main board has a ring beam fixing plate hinged between the two support vertical beams on the side near the storage tank light cylinder; and multiple layers of ring beam positioning blocks are also provided on the inner wall of the storage tank light cylinder.

[0012] Preferably, the end cap longitudinal beam includes an arc-shaped longitudinal beam plate, and the side of the longitudinal beam plate near the end cap plain plate has a through slit that matches the shape of the longitudinal beam plate at a position corresponding to the end cap cross beam.

[0013] Preferably, the cross section of the end cap beam is the same as the cross section of the support vertical beam.

[0014] Preferably, a storage tank inlet is provided at the top center of the upper end cap of the storage tank, and a storage tank outlet is provided at the bottom center of the lower end cap of the storage tank.

[0015] Preferably, the tank tube and the end cap plate are made of aluminum-magnesium alloy, aluminum-copper alloy, or aluminum-lithium alloy.

[0016] Preferably, the detection sensor can be fixedly installed on both the middle cylinder support and the end cap support.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model adopts a support frame inside the storage tank to enhance the structural stability and load-bearing capacity of the storage tank;

[0019] 2. The vertical beams of the support are set parallel to the axis of the inner cylinder of the storage tank, which helps to optimize the stress distribution of the storage tank under stress, reduce local stress concentration, and improve the durability and reliability of the storage tank.

[0020] 3. The uniform division and through-slot design of the bracket ring beam, as well as the hinged method of the ring beam fixing plate, simplify the manufacturing process and improve manufacturing efficiency. At the same time, the multi-layered ring-shaped ring beam positioning blocks help improve the accuracy and reliability of assembly.

[0021] 4. The design of fixing and installing detection sensors on the middle cylinder support and the end cap support makes the detection and maintenance of the storage tank more convenient, helps to monitor the status of the storage tank in real time, and ensures its safe operation.

[0022] 5. The number of support ring beams can be flexibly adjusted according to different loads, so that they can be used for various load requirements, while minimizing the weight and cost of the rocket body. Attached Figure Description

[0023] Figure 1 This is the front view of the present utility model;

[0024] Figure 2 for Figure 1 Structural diagram;

[0025] Figure 3 for Figure 2 Sectional view of AA;

[0026] Figure 4 for Figure 2 Sectional view of BB;

[0027] Figure 5 This is a schematic diagram of the support ring beam;

[0028] Figure 6 Schematic diagram of the upper and lower end caps of the storage tank;

[0029] Figure 7 This is a schematic diagram of the end cap longitudinal beam;

[0030] Figure 8 This is a schematic diagram of the support frame's vertical beam;

[0031] In the diagram: 1. Tank middle cylinder, 11. Tank smooth cylinder, 12. Middle cylinder support, 121. Support vertical beam, 122. Support ring beam, 123. Vertical beam bottom plate, 124. Vertical beam side plate, 125. Vertical beam bend, 126. Ring beam main plate, 127. Through joint, 128. Ring beam fixing plate, 13. Tank upper end cap, 2. End cap smooth plate, 21. End cap support, 22. End cap cross beam, 221. End cap longitudinal beam, 222. Longitudinal beam flat plate, 223. Tank feed inlet, 23. Tank lower end cap, 31. Tank discharge outlet. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0033] Please refer to Figure 1-8 , Figure 1 This is the front view of the present utility model; Figure 2 for Figure 1 Structural diagram; Figure 3 for Figure 2 Sectional view of AA; Figure 4 for Figure 2 Sectional view of BB; Figure 5 This is a schematic diagram of the support ring beam; Figure 6 Schematic diagram of the upper and lower end caps of the storage tank; Figure 7 This is a schematic diagram of the end cap longitudinal beam; Figure 8 This is a schematic diagram of the support frame's vertical beam.

[0034] This utility model provides a storage tank structure, including a cylindrical storage tank middle cylinder 1, with an upper storage tank end cap 2 and a lower storage tank end cap 3 respectively provided at the upper and lower ends of the storage tank middle cylinder 1.

[0035] The storage tank cylinder 1 includes a cylindrical storage tank tube 11, and a cylindrical cylinder support 12 is provided on the inner side of the storage tank tube 11. The cylinder support 12 includes a plurality of vertical support beams 121 arranged in a ring, and a ring beam 122 arranged in a ring is provided on the inner side of the support beams 121. Multiple layers of ring beam positioning blocks 13 are also provided on the inner wall of the storage tank tube 11.

[0036] The support vertical beam 121 is arranged parallel to the axis of the storage tank cylinder 1, and includes a vertical beam base plate 123 fixed to the inner wall of the storage tank cylinder 11 at the middle. Vertical beam side plates 124 are provided perpendicularly to the two sides of the vertical beam base plate 123, and the sides of the two vertical beam side plates 124 away from the vertical beam base plate 123 have opposing vertical beam bends 125. The support ring beam 122 is evenly divided into multiple identical parts, each part including an arc-shaped ring beam main plate 126. The ring beam main plate 126 is provided with a section near the side of the storage tank cylinder 11. A through slot 127 is provided that matches the support vertical beam 121. The ring beam main plate 126 has a ring beam fixing plate 128 hinged between the two support vertical beams 121 on the side near the storage tank light tube 11. This plate is used to overlap and fix the support ring beam 122 with the ring beam positioning block 13, thereby fixing the support ring beam 122. In addition, a locking joint is provided between two adjacent parts of the support ring beam 122, thereby connecting the segmented support ring beam 122 into a whole. This allows for quick installation of the support ring beam 122 during use.

[0037] The tank head 2 includes a bowl-shaped end plate 21 on the outside, and a bowl-shaped end support 22 on the inside of the end plate 21. A tank inlet 23 is located at the center of the top of the tank head 2 for adding fuel or other substances into the tank. The end support 22 includes multiple arc-shaped end beams 221 fixed to the inner wall of the end plate 21. The vertical planes containing the end beams 221 are parallel to each other. The cross section of the end cap beam 221 is the same as that of the support vertical beam 121. Multiple end cap longitudinal beams 222 are provided on the multiple end cap beams 221. The end cap longitudinal beam 222 includes an arc-shaped longitudinal beam plate 223. The side of the longitudinal beam plate 223 near the end cap plate 21 has a through slit that matches the shape of the longitudinal beam 221 at the corresponding position of the end cap beam 221, so that the end cap beam 221 and the end cap longitudinal beam 222 are engaged and connected.

[0038] The structure of the lower end cap 3 of the storage tank is the same as that of the upper end cap 2 of the storage tank, including a bowl-shaped end cap plate 21 on the outside and a bowl-shaped end cap support 22 on the inside of the end cap plate 21; a storage tank outlet 31 is provided at the bottom center of the lower end cap 3 of the storage tank for discharging the fuel stored in the storage tank.

[0039] The storage tank tube 11 and the end cap plate 21 are both made of aluminum-magnesium alloy, aluminum-copper alloy, or aluminum-lithium alloy. While storing the fuel, they can also effectively transfer the load.

[0040] Detection sensors can be fixedly installed on both the middle cylinder support 12 and the end cap support 22. While fixing the detection instruments, the structure of the storage tank is kept undamaged, thus ensuring the structural stability of the storage tank when it is under load.

[0041] This invention employs a support structure within the storage tank to enhance its structural stability and load-bearing capacity. The vertical beams of the support are parallel to the axis of the tank's inner cylinder, which helps optimize stress distribution under load, reduces localized stress concentration, and improves the tank's durability and reliability. The uniform division and through-slit design of the support ring beams, along with the hinged connection of the ring beam fixing plates, simplifies the manufacturing process and improves manufacturing efficiency. Simultaneously, the multi-layered, ring-shaped ring beam positioning blocks contribute to improved assembly accuracy and reliability. The design of fixedly installing detection sensors on the inner cylinder support and end cap support makes tank inspection and maintenance more convenient, facilitating real-time monitoring of the tank's status and ensuring its safe operation.

[0042] Although embodiments of the present invention have been shown and described, it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, it will be understood by those skilled in the art that all other embodiments obtained by making various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention and without creative effort are within the scope of protection of the present invention.

Claims

1. A storage tank structure, characterized in that: The tank includes a cylindrical inner cylinder (1) and upper and lower end caps (2 and 3) respectively. The inner cylinder (1) includes a cylindrical outer cylinder (11) and an inner cylinder support (12). The inner cylinder support (12) includes multiple vertical support beams (121) arranged in a ring, and a ring beam (122) is arranged in a ring on the inner side of the support beams (121). The upper end cap (2) The structure of the lower end cap (3) of the storage tank is the same, including a bowl-shaped end cap plate (21) on the outside and a bowl-shaped end cap support (22) on the inside; the end cap support (22) includes a plurality of arc-shaped end cap beams (221) fixed to the inner wall of the end cap plate (21), the vertical planes on which the end cap beams (221) are located are arranged parallel to each other, and a plurality of end cap longitudinal beams (222) are arranged on the plurality of end cap beams (221).

2. The tank structure according to claim 1, characterized in that: The support vertical beam (121) is arranged parallel to the axis of the storage tank cylinder (1), including a vertical beam bottom plate (123) fixed to the inner wall of the storage tank cylinder (11) at the middle. The two sides of the vertical beam bottom plate (123) are provided with vertical beam side plates (124) perpendicular to it. The two sides of the vertical beam side plates (124) away from the vertical beam bottom plate (123) are provided with vertical beam bends (125) extending in the opposite direction.

3. The tank structure according to claim 2, characterized in that: The support ring beam (122) is evenly divided into multiple parts of the same specification. Each part includes an arc-shaped ring beam main board (126). The ring beam main board (126) has a through slit (127) that matches the support vertical beam (121) on the side near the storage tank light cylinder (11).

4. The tank structure according to claim 3, characterized in that: The ring beam main board (126) has a ring beam fixing plate (128) hinged between the two support vertical beams (121) on the side near the storage tank tube (11); and multiple layers of ring beam positioning blocks (13) are also provided on the inner wall of the storage tank tube (11).

5. The tank structure according to claim 4, characterized in that: The end cap longitudinal beam (222) includes an arc-shaped longitudinal beam plate (223), and the longitudinal beam plate (223) has a through slit that matches the shape of the longitudinal beam plate (223) on the side near the end cap plate (21) at the corresponding position of the end cap crossbeam (221).

6. The tank structure according to claim 5, characterized in that: The cross section of the end cap beam (221) is the same as the cross section of the support vertical beam (121).

7. The tank structure according to any one of claims 1-6, characterized in that: The upper end cap (2) of the storage tank has a storage tank inlet (23) at the top center, and the lower end cap (3) of the storage tank has a storage tank outlet (31) at the bottom center.

8. The tank structure according to claim 7, characterized in that: The storage tank tube (11) and the end cap plate (21) are both made of aluminum-magnesium alloy, aluminum-copper alloy, or aluminum-lithium alloy.

9. The tank structure according to claim 7, characterized in that: The detection sensor can be fixedly installed on both the middle cylinder support (12) and the end cap support (22).

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