Propellant storage shelter waste fluid collection device

By designing an integrated waste liquid collection device for propellant storage containers, and utilizing inclined covers and confluence channels to achieve two-stage collection of waste liquid, the problem of incomplete waste liquid collection in existing technologies is solved, and the operational difficulty and cost are reduced.

CN116750212BActive Publication Date: 2026-04-17BEIJING INST OF AEROSPACE TESTING TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF AEROSPACE TESTING TECH
Filing Date
2023-07-05
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The waste liquid collection devices of existing propellant storage containers are mostly external equipment, which are not sufficiently integrated, resulting in inconvenience in on-site operation and increased operating costs.

Method used

Design an integrated propellant storage container waste liquid collection device, including a collection tank, a cover plate, a T-beam, and a collection trough. The cover plate is inclined and covers the top opening of the collection tank. The cover plate is provided with a drainage hole. The bottom of the collection tank is inclined. The T-beam supports the cover plate. The collection trough is used to collect the waste liquid that has not seeped down, realizing two-stage collection.

Benefits of technology

It achieves complete collection of waste liquid, prevents waste liquid from accumulating on the cover plate, reduces the difficulty of on-site operation and reduces the cost of use, and is easy to operate through its integrated design with the container.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a waste liquid collection device for a propellant storage container, comprising a collection tank, a cover plate, T-beams, and a manifold. The cover plate is inclined and covers the top opening of the collection tank, and has multiple rows of drainage holes. A manifold is located at the lower end of the cover plate, near the top, and communicates with one row of drainage holes at the lower end of the cover plate. This allows the waste liquid to flow on the cover plate and seep down through the drainage holes into the collection tank, achieving complete collection of the waste liquid. Multiple T-beams are spaced apart along the inclined direction of the cover plate inside the collection tank and support the cover plate. The inclined bottom of the collection tank facilitates more thorough extraction of the waste liquid. The waste liquid collection device is embedded in the bottom of the propellant storage container. The cover plate serves as the direct load-bearing component for the ground load inside the container, the T-beams support and transfer the load borne by the cover plate, and the collection tank collects the waste liquid. The integration of the propellant storage container waste liquid collection device with the container facilitates on-site operation and reduces operating costs.
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Description

Technical Field

[0001] This invention belongs to the field of propellant waste liquid collection devices, and more specifically, relates to a propellant storage container waste liquid collection device. Background Technology

[0002] To better meet the needs of aerospace and defense, propellant storage containers are developing towards modularization and integration. However, due to the risk of propellant leakage, the collection of leaked propellant liquid must be considered in the structural design of the container. Currently, most propellant liquid collection devices are external, lacking integration, which makes on-site operation inconvenient and increases operating costs.

[0003] In view of this, the present invention is proposed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a propellant storage container waste liquid collection device that is integrated with the container and is easy to operate.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0006] A waste liquid collection device for a propellant storage container includes a collection box, a cover plate, T-beams, and a confluence channel. The cover plate covers the top opening of the collection box and has multiple rows of drainage holes. The cover plate is inclined. A confluence channel is provided at the lower end of the cover plate and at the top of the cover plate, and it communicates with a row of drainage holes at the lower end of the cover plate. The bottom of the collection box is inclined. Multiple T-beams are arranged at intervals along the inclined direction of the cover plate inside the collection box and support the cover plate.

[0007] Furthermore, the angle of inclination between the cover plate and the horizontal plane is 1°.

[0008] Furthermore, the cover plate is welded and fixed to the upper part of the collection box around its perimeter.

[0009] Furthermore, the inclination angle between the bottom of the collection box and the horizontal plane is 1°.

[0010] Furthermore, the drainage holes are located between adjacent T-beams and between the T-beams and the sidewalls of adjacent collection boxes.

[0011] Furthermore, the drainage holes include a first drainage hole and a second drainage hole. A row of drainage holes located at the lower end of the cover plate and inside the side wall of the collection box is the second drainage hole. The second drainage hole is connected to the confluence channel, and the diameter of the second drainage hole is larger than that of the first drainage hole.

[0012] Furthermore, the second drainage hole includes multiple holes spaced apart, the confluence channel is wavy, and a second drainage hole is provided at each trough of the confluence channel. The confluence channel is located outside the spray coverage area inside the container.

[0013] Furthermore, there is a gap between the bottom of the T-beam and the inner bottom of the collection box.

[0014] Furthermore, the two ends of the T-beam are welded and fixed to the side wall of the collection box, and the top of the T-beam is spot-welded to the cover plate for reinforcement.

[0015] Furthermore, the collection box is made of stainless steel plate that is bent and welded as a whole, and the top of the side wall is provided with an outward flange.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0017] This invention discloses a waste liquid collection device for a propellant storage container, comprising a collection tank, a cover plate, T-beams, and a collection channel. The cover plate covers the top opening of the collection tank and has multiple rows of drainage holes. The cover plate is inclined. A collection channel is located at the lower end of the cover plate, adjacent to the top of the cover plate, and communicates with one row of drainage holes at the lower end of the cover plate. The bottom of the collection tank is inclined. Multiple T-beams are spaced apart along the inclined direction of the cover plate inside the collection tank and support the cover plate. By covering the top of the collection tank with an inclined cover plate and having drainage holes on the cover plate, waste liquid falling on the cover plate can flow along the inclined direction of the cover plate and seep into the collection tank through the drainage holes during the flow. The collection channel at the lower end of the cover plate can collect waste liquid that has not seeped into the collection tank through one row of drainage holes at the lower end of the cover plate. Through these two stages of collection—seepage during the flow of waste liquid along the cover plate and final collection and seepage through the collection channel—all waste liquid is collected, preventing waste liquid from accumulating on the cover plate. The inclined design of the collection tank's inner bottom causes waste liquid to accumulate on the right side of the tank, ensuring more thorough collection when the waste liquid is removed and resolving the issue of liquid accumulation. The propellant storage container waste liquid collection device is embedded in the bottom of the container, with the cover plate serving as the direct load-bearing component for the internal ground load. A T-beam supports and transfers the load borne by the cover plate. The collection tank collects the waste liquid. Integrating the propellant storage container waste liquid collection device with the container facilitates on-site operation and reduces operating costs.

[0018] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0020] Figure 1 This is a schematic diagram of the installation of a propellant storage container waste liquid collection device inside the container according to the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a propellant storage container waste liquid collection device according to the present invention;

[0022] Figure 3 yes Figure 2 A left-view diagram;

[0023] Figure 4 This is a top view schematic diagram of a propellant storage container waste liquid collection device according to the present invention;

[0024] Figure 5 This is a schematic diagram of the inclined angle between the cover plate and the horizontal plane and the inclined angle between the bottom of the collection box and the horizontal plane of the waste liquid collection device for propellant storage container according to the present invention.

[0025] Figure 6 This is a schematic diagram of the spray range on the waste liquid collection device of the propellant storage container inside the container.

[0026] In the diagram: 1. Collection box; 2. Cover plate; 3. T-beam; 4. First drainage hole; 5. Second drainage hole; 6. Convergence channel; 7. Bottom edge beam.

[0027] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] Combination Figures 1 to 6 As shown, the present invention provides a propellant storage container waste liquid collection device, including a collection box 1, a cover plate 2, a T-shaped beam 3 and a confluence channel 6. The cover plate 2 covers the top opening of the collection box 1, and multiple rows of drainage holes are provided on the cover plate 2. The cover plate 2 is inclined.

[0032] Considering the airtightness of the waste liquid collection device for the propellant storage container, the collection tank 1 is made of stainless steel plate bent and welded as a whole. To facilitate the seepage of waste liquid from above the cover plate 2 into the collection tank 1, drainage holes are opened on the cover plate 2, and the cover plate 2 is tilted to form an angle with the horizontal plane.

[0033] If the inclination angle α between the cover plate 2 and the horizontal plane is too small, the drainage effect will be unsatisfactory; if the inclination angle α is too large, objects on the cover plate 2 will slip, affecting normal use. The slope of the drainage surface should be controlled between 1% and 3%. After calculation, an inclination angle of 1° is found to be most suitable. Therefore, in this embodiment, the inclination angle α between the cover plate 2 and the horizontal plane is 1°. The cover plate 2 gradually slopes downwards from one end of the container to the other end. Along the inclination direction of the cover plate 2, the higher end of the cover plate 2 is the high end of the cover plate, and the lower end of the cover plate 2 is the low end of the cover plate.

[0034] The cover plate 2 is welded and fixed to the upper part of the collection box 1 around its perimeter.

[0035] Considering that cover plate 2 is the direct load-bearing component of the cabin floor, in order to meet the structural load-bearing requirements, combined with Figure 1 , 2 As shown in Figures 4 and 5, multiple T-shaped beams 3 are spaced apart inside the collection box 1 along the inclined direction of the cover plate 2 to support the cover plate 2 and support and transmit the load borne by the cover plate 2.

[0036] To make full use of the collection space, there is a gap between the bottom of the T-beam 3 and the inner bottom of the collection box 1, which makes the entire interior of the collection box a continuous whole; the two ends of the T-beam 3 are welded to the side wall of the collection box 1, and the top of the T-beam 3 is spot welded to the cover plate 2 for reinforcement.

[0037] Combination Figure 1 , 2 As shown in Figure 5, the top of all four side walls of the collection box 1 are provided with outward-curved edges, such as... Figure 1 As shown, the outer flange at the top of the side wall of the collection box 1 is hooked onto the bottom beam 7 of the container, so that the propellant storage container waste liquid collection device is connected to the container as a whole.

[0038] Combination Figure 1 , 4 As shown, the drainage holes on the cover plate 2 are located between adjacent T-beams 3 and between the T-beams 3 and the side wall of the adjacent collection box 1.

[0039] The drainage holes include a first drainage hole 4 and a second drainage hole 5. A row of drainage holes located at the lower end of the cover plate and inside the side wall of the collection tank 1 constitutes the second drainage hole 5, while the remaining drainage holes constitute the first drainage hole 4. The diameter of the second drainage hole 5 is larger than that of the first drainage hole 4. The second drainage hole 5 comprises multiple drainage holes spaced apart.

[0040] A confluence channel 6 is provided at the lower end of the cover plate and located at the top of the cover plate. The confluence channel 6 is wavy, with the crests of the channel facing the upper end of the cover plate and the troughs facing the lower end of the cover plate. A second drain hole 5 is provided at each trough of the confluence channel 6, and the second drain hole 5 is connected to the confluence channel 6. In this embodiment, the confluence channel is a 2mm thick stainless steel plate welded to the cover plate 2. The position of the confluence channel is determined according to the waste liquid spray coverage area inside the container. Figure 6 As shown, the manifold 6 is located outside the spray coverage area A of the waste liquid on the cover plate 2 inside the container, to prevent the waste liquid from spraying onto the top of the manifold 6 when spraying onto the cover plate 2, thus preventing the waste liquid from seeping into the collection box 1.

[0041] When the waste liquid is sprayed onto the cover plate 2, the waste liquid flows along the cover plate 2 due to the inclined setting of the cover plate 2. During the flow, part of the waste liquid seeps into the collection tank 1 through the first drain hole 4, and the waste liquid that does not seep into the cover plate flows to the lower end of the cover plate, is collected by the confluence channel 6, and then seeps into the collection tank 1 through the second drain hole 5, so that all the waste liquid is collected into the collection tank 1.

[0042] Because the second drain hole 5 on the cover plate 2 is relatively large, when the waste liquid in the collection tank 1 needs to be discharged, the drain pipe is inserted into the second drain hole 5 and then into the collection tank 1 to draw the waste liquid out of the collection tank 1. Since the inclination angle α between the inner bottom of the collection tank 1 and the horizontal plane is also set at 1°, the waste liquid in the collection tank can flow and accumulate to a lower position. Moreover, the inclination direction of the inner bottom of the collection tank 1 is consistent with the inclination direction of the cover plate 2. The second drain hole 5 is located at the lower end of the cover plate, which is exactly above the lower part of the inner bottom of the collection tank 1. Inserting the pipe through the second drain hole 5 to drain the liquid makes it easier to discharge the waste liquid collected in the collection tank 1 more thoroughly.

[0043] This invention discloses a waste liquid collection device for a propellant storage container, comprising a collection tank, a cover plate, T-beams, and a collection channel. The cover plate covers the top opening of the collection tank and has multiple rows of drainage holes. The cover plate is inclined. A collection channel is located at the lower end of the cover plate, adjacent to the top of the cover plate, and communicates with one row of drainage holes at the lower end of the cover plate. The bottom of the collection tank is inclined. Multiple T-beams are spaced apart along the inclined direction of the cover plate inside the collection tank and support the cover plate. By covering the top of the collection tank with an inclined cover plate and having drainage holes on the cover plate, waste liquid falling on the cover plate can flow along the inclined direction of the cover plate and seep into the collection tank through the drainage holes during the flow. The collection channel at the lower end of the cover plate can collect waste liquid that has not seeped into the collection tank through one row of drainage holes at the lower end of the cover plate. Through these two stages of collection—seepage during the flow of waste liquid along the cover plate and final collection and seepage through the collection channel—all waste liquid is collected, preventing waste liquid from accumulating on the cover plate. The inclined design of the collection tank's inner bottom causes waste liquid to accumulate on the right side of the tank, ensuring more thorough collection when the waste liquid is removed and resolving the issue of liquid accumulation. The propellant storage container waste liquid collection device is embedded in the bottom of the container, with the cover plate serving as the direct load-bearing component for the internal ground load. A T-beam supports and transfers the load borne by the cover plate. The collection tank collects the waste liquid. Integrating the propellant storage container waste liquid collection device with the container facilitates on-site operation and reduces operating costs.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A propellant storage container waste liquid collection device, characterized in that: Includes collection box, cover plate, T-beam and manifold, The cover plate covers the top opening of the collection box, and multiple rows of drainage holes are provided on the cover plate. The cover plate is set at an angle, and the area of ​​the cover plate is larger than and encompasses the propellant waste liquid spray coverage area. The drainage holes include a first drainage hole and a second drainage hole. A row of drainage holes located at the lower end of the cover plate and inside the side wall of the collection tank constitutes the second drainage hole, while the remaining drainage holes constitute the first drainage hole. The diameter of the second drainage hole is larger than that of the first drainage hole. Multiple second drainage holes are spaced apart. A confluence channel is provided at the lower end of the cover plate and at the top of the cover plate. The confluence channel is wavy, with the crests of the confluence channel facing the upper end of the cover plate and the troughs facing the lower end of the cover plate. A second drainage hole is provided at each trough of the confluence channel. The confluence channel is connected to a row of second drainage holes at the lower end of the cover plate. The confluence channel is located outside the waste liquid spray coverage area inside the container. The second drainage holes also serve as insertion holes for the drain pipes for the external discharge of propellant waste liquid. The bottom of the collection box is inclined; the inclination direction of the bottom of the collection box is the same as that of the cover plate, and the second drain hole is located above the lowest point of the bottom of the collection box. The collection box contains multiple T-shaped beams spaced at intervals along the inclined direction of the cover plate to support the cover plate.

2. The propellant storage container waste liquid collection device according to claim 1, characterized in that: The angle of inclination between the cover plate and the horizontal plane is 1°.

3. A propellant storage container waste liquid collection device according to claim 1 or 2, characterized in that: The cover plate is welded and fixed to the top of the collection box around its perimeter.

4. The propellant storage container waste liquid collection device according to claim 1, characterized in that: The inclination angle between the bottom of the collection box and the horizontal plane is 1°.

5. The propellant storage container waste liquid collection device according to claim 1, characterized in that: The drainage holes are located between adjacent T-beams and between the T-beams and the sidewalls of adjacent collection boxes.

6. A propellant storage container waste liquid collection device according to claim 1 or 5, characterized in that: There is a gap between the bottom of the T-beam and the bottom of the collection box.

7. The propellant storage container waste liquid collection device according to claim 6, characterized in that: The two ends of the T-shaped beam are welded and fixed to the side wall of the collection box, and the top of the T-shaped beam is spot-welded to the cover plate for reinforcement.

8. The propellant storage container waste liquid collection device according to claim 1, characterized in that: The collection box is made of stainless steel plate that is bent and welded as a whole, and the top of the side wall is provided with an outward flange.

Citation Information

Patent Citations

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