Straight welding type recoverable storage tank energy dissipation equipment based on stainless steel

Abstract

The utility model discloses stainless steel-based directly-welded recoverable storage tank energy dissipation equipment, and relates to the technical field of energy dissipation equipment, the stainless steel-based directly-welded recoverable storage tank energy dissipation equipment comprises an energy dissipation pipe and an outer-layer welding plate, the energy dissipation pipe penetrates through the outer-layer welding plate, and the outer-layer welding plate is fixedly welded on the surface of the energy dissipation pipe; the area, extending to the bottom of the outer-layer welding plate, of the energy dissipation pipe is provided with a speed reduction hole. The bottom of the outer-layer welding plate is fixedly connected with a speed-reducing drainage structure, the air outlet end of the energy dissipation pipe extends into the speed-reducing drainage structure, and the speed-reducing drainage structure is of a mesh structure and has the advantages of being simple in structure, free of flange and sealing ring connection, integrated in structure and low in cost. The problems that an existing energy dissipater structure is complex in structural design and high in manufacturing cost are solved.

Description

Technical Field

[0001] This utility model relates to the field of energy dissipation equipment technology, specifically to an energy dissipation equipment based on a stainless steel direct-weldable recyclable storage tank. Background Technology

[0002] During rocket operation, as propellant is consumed, the fuel level in the rocket fuel tank gradually decreases, and the pressure in the gas cushion above the fuel level decreases. This phenomenon can affect the stability of propellant delivery. To ensure a continuous fuel supply, high-pressure gas needs to be injected into the gas cushion through a pressurization system to maintain stable pressure on the fuel level in the tank. However, if the pressurization gas from the liquid fuel tank is directly introduced into the gas cushion, it may cause the pressurization gas to break down the propellant, resulting in air trapping in the delivery system and adversely affecting the reliability of engine operation. Therefore, an energy dissipator is needed to consume the kinetic energy of the pressurization gas to achieve a uniform and gradual pressurization effect.

[0003] In response to the fuel delivery requirements and structural space characteristics of the Centaur AC-8 rocket, NASA proposed a multi-layer perforated plate, enlarged cross-section, and central honeycomb barrel energy dissipator design. However, existing energy dissipator structures require flange connections to external docking flanges, and the connection between the flanges and the external parts requires embedded sealing rings to ensure a seal. These sealing rings are expensive and consumables, resulting in complex structural design and high manufacturing costs. Utility Model Content

[0004] This utility model provides an energy dissipation device based on a stainless steel direct-weldable recyclable storage tank, which has the advantages of simple structure, no need for flange and sealing ring connection, integrated structure, and low cost, so as to solve the problems of complex structural design and high manufacturing cost of existing energy dissipators.

[0005] To achieve a simple structure, no need for flange and sealing ring connection, integrated structure, and low cost, this utility model provides the following technical solution: a stainless steel direct-weldable recyclable storage tank energy dissipation device, including an energy dissipation pipe and an outer welding plate, wherein the energy dissipation pipe penetrates the outer welding plate and the outer welding plate is fixedly welded to the surface of the energy dissipation pipe.

[0006] The energy dissipation tube extends to the bottom of the outer welding plate and has a speed reduction hole.

[0007] The bottom of the outer welding plate is fixedly connected to a deceleration and venting structure, the outlet end of the energy dissipation pipe extends into the interior of the deceleration and venting structure, and the deceleration and venting structure is a mesh structure.

[0008] As a preferred technical solution of this utility model, the energy dissipation tube includes a pressure boosting tube section, a high-energy deceleration section and a flow guiding section. The high-energy deceleration section is fixedly connected to one end of the pressure boosting tube section, and the flow guiding section is fixed to the inner side of the end of the high-energy deceleration section away from the pressure boosting tube section.

[0009] The outer welding plate is fixedly welded to the high-energy deceleration part;

[0010] The high-energy deceleration section extends into the interior of the deceleration and venting structure, and the deceleration hole is opened on the high-energy deceleration section.

[0011] As a preferred embodiment of this utility model, the flow guide is conical, and the tip of the cone faces the booster pipe.

[0012] As a preferred technical solution of this utility model, the deceleration and discharge structure includes a screen deceleration layer and a screen discharge layer. The screen deceleration layer is disposed inside the screen discharge layer. The top of both the screen deceleration layer and the screen discharge layer are open and the bottom is closed.

[0013] Both the screen deceleration layer and the screen discharge layer are coaxially connected to the outer welding plate and are welded to the bottom of the outer welding plate.

[0014] The high-energy deceleration section extends into the interior of the screen deceleration layer.

[0015] As a preferred embodiment of this utility model, the screen deceleration layer and the screen discharge layer have the same shape, both being frustum-shaped.

[0016] Compared with the prior art, this utility model provides an energy dissipation device based on a stainless steel direct-weldable recyclable storage tank, which has the following beneficial effects:

[0017] This energy dissipation device based on a stainless steel directly weldable recyclable storage tank, through the direct insertion of a pressurized pipeline into the energy dissipation structure, integrates the pressurized pipeline with a high-energy deceleration layer structure, ensuring structural strength, reducing the connection and use of seals and standard parts between flanges, and also reducing the overall assembly procedures of the storage tank.

[0018] This energy dissipation device, based on a stainless steel, directly weldable, recyclable storage tank, has three internal layers: a high-energy deceleration section, a screen deceleration layer, and a screen discharge layer, which together form the main structure of the energy dissipation device. Under the action of a large flow of pressurized gas, the energy dissipation device can quickly homogenize and distribute the gas through the three layers of flow obstruction to meet the pressurization requirements inside the storage tank, while also preventing the pressurized gas from directly impacting the propellant in the storage tank.

[0019] This energy dissipation device, based on a stainless steel directly weldable recyclable storage tank, has an overall structure that is a shower-style external discharge structure with a conical circular structure. It effectively utilizes space, while ensuring that the flow velocity and direction of the outflow are evenly distributed internally. The increased energy dissipation space allows the flow velocity to be rapidly reduced over a short distance.

[0020] This energy dissipation device, based on a stainless steel directly weldable recyclable storage tank, is entirely made of 304 stainless steel. 304 stainless steel is a low-cost material with a large market demand. The overall structure is fixed by welding, and the materials and welding process are mature, making the cost controllable. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a cross-sectional view of the present invention.

[0023] In the diagram: 1. Energy dissipation pipe; 101. Pressure boosting pipe section; 102. High-energy deceleration section; 103. Flow guiding section; 2. Outer welding plate; 3. Deceleration hole; 4. Screen deceleration layer; 5. Screen discharge layer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-2 This utility model discloses an energy dissipation device based on a stainless steel direct-weldable recyclable storage tank, including an energy dissipation pipe 1 and an outer welding plate 2. The energy dissipation pipe 1 penetrates the outer welding plate 2, and the outer welding plate 2 is fixedly welded to the surface of the energy dissipation pipe 1.

[0026] A deceleration hole 3 is provided in the area where the energy dissipation pipe 1 extends to the bottom of the outer welding plate 2;

[0027] The bottom of the outer welding plate 2 is fixedly connected to a deceleration and venting structure. The outlet end of the energy dissipation pipe 1 extends into the interior of the deceleration and venting structure, and the deceleration and venting structure is a mesh structure.

[0028] Specifically, the energy dissipation pipe 1 includes a pressure boosting pipe section 101, a high-energy deceleration section 102, and a flow guiding section 103. The high-energy deceleration section 102 is fixedly connected to one end of the pressure boosting pipe section 101, and the flow guiding section 103 is fixedly located on the inner side of the end of the high-energy deceleration section 102 away from the pressure boosting pipe section 101. The outer welding plate 2 is fixedly welded to the high-energy deceleration section 102. The high-energy deceleration section 102 extends into the interior of the deceleration and venting structure, and the deceleration hole 3 is opened on the high-energy deceleration section 102.

[0029] In this embodiment, the pressurization pipe section 101 and the high-energy deceleration section 102 are connected by welding to form a sealed structure for conveying high-pressure gas. This structure does not require sealing rings or bolts and nuts for fixing, which can reduce the assembly process and reduce the risk of leakage. The outer welding plate 2 is welded to the front bottom or side wall of the storage tank. This plate can bear the pressure of the gas inside the storage tank and at the same time act as the bending moment load of the energy dissipation equipment, realizing that the storage tank and the energy dissipation equipment are an integrated structure.

[0030] Specifically, the guide section 103 is conical, and the tip of the cone faces the booster pipe section 101.

[0031] In this embodiment, the high-energy deceleration section 102 and the flow guiding section 103 are connected by welding. The flow guiding section 103 is located at the bottom of the high-energy deceleration section 102 and is welded flush with the bottom. The high-energy deceleration section 102 passes through the outer welding plate 2, and the two are connected by welding, forming a coaxial connection.

[0032] Specifically, the deceleration and discharge structure includes a screen deceleration layer 4 and a screen discharge layer 5. The screen deceleration layer 4 is disposed inside the screen discharge layer 5. Both the screen deceleration layer 4 and the screen discharge layer 5 have open tops and closed bottoms. Both the screen deceleration layer 4 and the screen discharge layer 5 are coaxially connected to the outer welding plate 2 and are welded to the bottom of the outer welding plate 2. The high-energy deceleration part 102 extends into the interior of the screen deceleration layer 4.

[0033] The screen deceleration layer 4 and the screen discharge layer 5 have the same shape, both being frustum-shaped. Based on the gas flow rate at the inlet, the outlet flow rate can be calculated, and the tilt angle of the sides of the screen deceleration layer 4 and the screen discharge layer 5 can be adjusted. Different screen deceleration layers 4 and 5 can be used; the angle adjustment range is 30-60°.

[0034] In this embodiment, the openings on the screen deceleration layer 4 and the screen discharge layer 5, as well as the deceleration holes 3, are all through holes with a diameter of 4. The deceleration holes 3 on the high-energy deceleration section 102 and the holes on the screen deceleration layer 4 are staggered and misaligned; the holes on the screen discharge layer 5 and the screen discharge layer 5 are staggered and misaligned to ensure staggered deceleration of the gas; the diameter of the energy dissipation pipe 1 is variable, and different pressure boosting pipes can be designed according to different pressure boosting pipe diameters, which can be compatible with different models or storage tanks, achieving universality.

[0035] All components are made of 304 stainless steel, consistent with the material of the arrow body's front bottom or side wall, ensuring the consistency of materials between the arrow body and the energy dissipation equipment, and enabling quick installation or replacement.

[0036] The pressurized gas enters the high-energy deceleration section 102 through the pressurization pipe 101. Guided by the flow guide 103 inside the high-energy deceleration section 102, the high-speed flowing gas undergoes uniform circumferential distribution within the section. Simultaneously, after repeated collisions and deceleration within the section, the gas enters the second deceleration space through the deceleration holes 3. In this space, the gas is diffused from the compression space within the high-energy deceleration section 102 into the large space of the screen deceleration layer 4, where the gas velocity decreases. The screen deceleration layer 4 is equipped with angled deceleration cones, preventing the pressurized gas from directly exiting this space. Instead, it undergoes repeated radial velocity reduction within the layer until the velocity is low enough to guide the gas to the screen discharge layer 5. A secondary pressure drop occurs within the screen discharge layer 5, and finally, the gas flows into the storage tank.

[0037] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy dissipation device based on a stainless steel direct-weldable recyclable storage tank, characterized in that: It includes an energy dissipation tube (1) and an outer welding plate (2), wherein the energy dissipation tube (1) penetrates the outer welding plate (2), and the outer welding plate (2) is fixedly welded to the surface of the energy dissipation tube (1); The energy dissipation pipe (1) extends to the bottom of the outer welding plate (2) and has a deceleration hole (3); The bottom of the outer welding plate (2) is fixedly connected to a deceleration and venting structure, the outlet end of the energy dissipation pipe (1) extends into the interior of the deceleration and venting structure, and the deceleration and venting structure is a mesh structure.

2. The energy dissipation device based on a stainless steel direct-weldable recyclable storage tank according to claim 1, characterized in that: The energy dissipation pipe (1) includes a pressure boosting pipe section (101), a high-energy deceleration section (102), and a flow guiding section (103). The high-energy deceleration section (102) is fixedly connected to one end of the pressure boosting pipe section (101), and the flow guiding section (103) is fixed on the inner side of the end of the high-energy deceleration section (102) away from the pressure boosting pipe section (101). The outer welding plate (2) is fixedly welded to the high-energy deceleration part (102); The high-energy deceleration section (102) extends into the interior of the deceleration and discharge structure, and the deceleration hole (3) is opened on the high-energy deceleration section (102).

3. The energy dissipation device based on a stainless steel direct-weldable recyclable storage tank according to claim 2, characterized in that: The flow guide (103) is conical, and the tip of the cone faces the booster pipe (101).

4. The energy dissipation device based on a stainless steel direct-weldable recyclable storage tank according to claim 2, characterized in that: The deceleration and drainage structure includes a screen deceleration layer (4) and a screen drainage layer (5). The screen deceleration layer (4) is disposed inside the screen drainage layer (5). The top of both the screen deceleration layer (4) and the screen drainage layer (5) are open and the bottom is closed. The screen deceleration layer (4) and the screen discharge layer (5) are both coaxially connected to the outer welding plate (2) and are both welded to the bottom of the outer welding plate (2); The high-energy deceleration section (102) extends into the interior of the screen deceleration layer (4).

5. The energy dissipation device based on a stainless steel direct-weldable recyclable storage tank according to claim 4, characterized in that: The screen deceleration layer (4) and the screen discharge layer (5) have the same shape, both being frustum-shaped.

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