Bulkhead fireproof structure of energy storage tank

By installing side and top fire-resistant components on the walls of the energy storage container, the A60 fire resistance rating issue of the lithium battery containerized energy storage system is resolved, ensuring that fire does not spread and improving the fire resistance and fire protection reliability of the container.

CN116099139BActive Publication Date: 2026-03-17WUHAN INSTITUTE OF MARINE ELECTRIC PROPULSION (THE 712TH RESEARCH INSTITUTE OF CHINA STATE SHIPBUILDING CORP LTD)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-01-13
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing technologies are insufficient to meet the A60 fire resistance rating requirements of lithium battery containerized energy storage systems, as fires can easily spread to other parts and the fire resistance of the container is inadequate.

Method used

Fire-resistant components, including side panels, wall bracing, and fire-resistant lining, are installed on the bulkhead of the energy storage tank. The wall bracing increases the strength of the bulkhead and top panel and compresses the fire-resistant lining to improve adhesion and form a fire barrier.

Benefits of technology

It achieves the goal of preventing thermal instability of the bulkhead under thermal runaway conditions, improves fire protection reliability and fire resistance, meets the A60 fire rating requirements, and is low in cost and easy to implement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of bulkhead fireproof structure of energy storage tank, including several side fireproof components, each side fireproof component includes side bulkhead, several side walling ribs and first side fireproof dressing;Each side walling rib is uniformly arranged on the inner surface of corresponding side bulkhead, each side walling rib includes side connecting part and side pressing part;The first side fireproof dressing is laid on the surface of the side bulkhead, and the surface of the first side fireproof dressing away from the side bulkhead is in contact with the side pressing part.The beneficial effects of the present application are: by setting side walling rib on side bulkhead, the strength of side bulkhead is increased, and the side walling rib can also be used to press the first side fireproof dressing, improve the adhesion between the first side fireproof dressing and the side bulkhead, ensure that the bulkhead does not occur thermal instability within the fire endurance range after thermal runaway, improve the reliability of fire prevention.
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Description

Technical Field

[0001] This invention relates to the field of energy storage box power technology, and in particular to a fireproof structure for the bulkhead of an energy storage box. Background Technology

[0002] With the continuous development of new energy technologies, clean energy has become a trend of the times. Under the background of carbon peaking and carbon neutrality, green ships are emerging. In order to solve the problem of clean energy supply, containerized energy storage systems have emerged (such as Chinese invention patent application number CN202011369177.0).

[0003] Due to inherent safety concerns with lithium batteries, fires caused by thermal runaway are not uncommon. Containerized power supplies for new energy vessels have even stricter safety requirements, needing to meet the A60 fire rating according to the China Classification Society. Even in the event of thermal runaway within the container, the fire should be contained within the container and prevented from spreading to other areas. However, there is a lack of industry standards for A60 fire-resistant design of containers. Therefore, ensuring the A60 fire-resistant rating of containerized power supplies and further improving the fire resistance of the container itself is a significant technical challenge for the entire industry. Summary of the Invention

[0004] In view of this, it is necessary to provide a fireproof structure for the bulkhead of an energy storage container to improve the fire resistance and fire protection requirements of container power supplies.

[0005] To achieve the above objectives, the present invention provides a fireproof structure for the bulkhead of an energy storage tank, comprising a plurality of side fireproof components, each of which includes a side partition, a plurality of side bracing bars and a first side fireproof covering.

[0006] Each of the side partitions encloses the energy storage box;

[0007] Each of the side wall bracing bars is evenly arranged on the inner surface of the corresponding side partition. Each of the side wall bracing bars includes a side connecting part and a side pressing part. One end of the side connecting part is fixedly connected to the side partition, and the other end of the side connecting part is perpendicularly fixedly connected to the side pressing part. The side pressing part is parallel to the corresponding side partition.

[0008] The first side fireproof dressing is applied to the surface of the side partition, and the surface of the first side fireproof dressing away from the side partition abuts against the side pressing part.

[0009] In some embodiments, the fireproof structure of the energy storage box further includes several side vertical beams, and each side partition is fixed between two adjacent side vertical beams.

[0010] In some embodiments, the side fireproofing component further includes a plurality of second side fireproofing materials, which are applied to the corresponding side wall reinforcement bars.

[0011] In some embodiments, the distance between two adjacent side wall bracing bars is no more than 600mm.

[0012] In some embodiments, the length of the side clamping portion is not less than 65 mm.

[0013] In some embodiments, the side fireproof assembly further includes a top fireproof assembly, which includes a top plate, a plurality of top wall bracing members, and a first top fireproof covering. The top plate is fixed to the upper end of each of the side partitions. Each of the top wall bracing members is evenly arranged on the inner surface of the top plate, and each of the top wall bracing members includes a top connecting portion and a top pressing portion. One end of the top connecting portion is fixedly connected to the top plate, and the other end of the top connecting portion is perpendicularly fixedly connected to the top pressing portion. The top pressing portion is parallel to the top plate. The first top fireproof covering is applied to the surface of the top plate, and the surface of the first top fireproof covering away from the top plate abuts against the top pressing portion.

[0014] In some embodiments, the top surface fireproof assembly further includes two top crossbeams and a top middle crossbeam, the two ends of the top crossbeams being fixedly connected to the corresponding two side vertical beams, and the top plate being fixedly connected to the two top crossbeams and the top middle crossbeam.

[0015] In some embodiments, the top crossbeam and the corresponding side vertical beam are fixedly connected via corner brackets.

[0016] In some embodiments, the surface of the top central crossbeam is covered with a second top surface fireproof dressing.

[0017] In some embodiments, the surface of each of the top wall bracing bars is covered with a third top fireproof dressing.

[0018] Compared with the prior art, the beneficial effects of the technical solution proposed in this invention are as follows: by setting side wall reinforcement bars on the side bulkhead, the strength of the side bulkhead is increased. At the same time, the side wall reinforcement bars can also be used to compress the first side fireproofing material, improving the adhesion between the first side fireproofing material and the side bulkhead, ensuring that the bulkhead does not experience thermal instability within the fire resistance limit range after thermal runaway, and improving the reliability of fire protection; using this invention for A60 fireproof design is not only low in cost but also highly feasible, and better guarantees the fire resistance of the container. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the energy storage box provided by the present invention;

[0020] Figure 2 yes Figure 1 The main view;

[0021] Figure 3 yes Figure 2 Sectional view of section AA;

[0022] Figure 4 yes Figure 3 A magnified view of a portion of region C in the middle;

[0023] Figure 5 yes Figure 1 A three-dimensional structural diagram of a side fireproof component;

[0024] Figure 6 yes Figure 5 A magnified view of a portion of region D in the middle;

[0025] Figure 7 yes Figure 3 Sectional view of the middle section BB;

[0026] Figure 8 yes Figure 7 A magnified view of a portion of region E in the middle;

[0027] Figure 9 yes Figure 1 A three-dimensional structural diagram of the top surface fireproof component;

[0028] Figure 10 yes Figure 9 A magnified view of a portion of region F in the middle;

[0029] In the diagram: 1-Side fireproof component, 11-Side partition, 12-Side wall bracing, 121-Side connection, 122-Side clamping part, 13-First side fireproof covering, 14-Side vertical beam, 15-Second side fireproof covering, 2-Top surface fireproof component, 21-Top plate, 22-Top surface wall bracing, 221-Top surface connection, 222-Top surface clamping part, 23-First top surface fireproof covering, 24-Top horizontal beam, 25-Top middle horizontal beam, 26-Corner fitting, 27-Second top surface fireproof covering, 28-Third top surface fireproof covering. Detailed Implementation

[0030] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0031] Please refer to Figures 1-6The present invention provides a fireproof structure for the bulkhead of an energy storage box, including a plurality of side fireproof components 1, each of the side fireproof components 1 including a side partition 11, a plurality of side wall reinforcements 12 and a first side fireproof covering 13.

[0032] Each of the side partitions 11 encloses the energy storage box.

[0033] Each of the side wall bracing ribs 12 is evenly arranged on the inner surface of the corresponding side partition 11. Each of the side wall bracing ribs 12 includes a side connecting part 121 and a side pressing part 122. One end of the side connecting part 121 is fixedly connected to the side partition 11, and the other end of the side connecting part 121 is perpendicularly fixedly connected to the side pressing part 122. The side pressing part 122 is parallel to the corresponding side partition 11.

[0034] The first side fireproof dressing 13 is applied to the surface of the side partition 11, and the surface of the first side fireproof dressing 13 away from the side partition 11 abuts against the side pressing part 122.

[0035] In this invention, by setting side wall bracing 12 on the side partition 11, the strength of the side partition 11 is increased. At the same time, the side wall bracing 12 can also be used to compress the first side fireproof dressing 13, improving the adhesion between the first side fireproof dressing 13 and the side partition 11, ensuring that the bulkhead does not experience thermal instability within the fire resistance limit after thermal runaway, thus improving the reliability of fire protection. Using this invention for A60 fireproof design is not only low in cost but also highly feasible, and it better guarantees the fire resistance of the container.

[0036] To specifically implement the fixing of the side partition 11, please refer to... Figures 1-6 In a preferred embodiment, the fireproof structure of the energy storage box further includes several side vertical beams 14, and each side partition 11 is fixed between two adjacent side vertical beams 14.

[0037] To further improve fire prevention, please refer to Figures 2-6 In a preferred embodiment, the side fireproof component 1 further includes a plurality of second side fireproof dressings 15, which are applied to the corresponding side wall reinforcements 12.

[0038] To improve the compressive effect of the side wall reinforcement 12 on the first side fireproof covering 13, please refer to... Figure 5 In a preferred embodiment, the distance between two adjacent side wall reinforcement bars 12 is no more than 600mm.

[0039] To ensure the effective compression of the side wall bracing 12 onto the first side fireproof covering 13, please refer to... Figure 5 In a preferred embodiment, the length of the side pressing portion 122 is not less than 65 mm.

[0040] For fire-resistant design of the top surface of the container bulkhead, please refer to... Figures 7-10 In a preferred embodiment, the fireproof structure of the energy storage tank's bulkhead further includes a top surface fireproof component 2, which includes a top plate 21, a plurality of top surface support ribs 22, and a first top surface fireproof covering 23. The top plate 21 is fixed to the upper end of each of the side partitions 11; each of the top surface support ribs 22 is evenly arranged on the inner surface of the top plate 21, and each of the top surface support ribs 22 includes a top surface connecting portion 221 and a top surface pressing portion 222. One end of the top surface connecting portion 221 is fixedly connected to the top plate 21, and the other end of the top surface connecting portion 221 is perpendicularly fixedly connected to the top surface pressing portion 222. The top surface pressing portion 222 is parallel to the top plate 21; the first top surface fireproof covering 23 is applied to the surface of the top plate 21, and the surface of the first top surface fireproof covering 23 away from the top plate 21 abuts against the top surface pressing portion 222. By setting top surface wall reinforcement 22 on the top plate 21, the strength of the top plate 21 is increased. At the same time, the top surface wall reinforcement 22 can also be used to compress the first top surface fireproof dressing 23, improving the adhesion between the first top surface fireproof dressing 23 and the top plate 21, ensuring that the bulkhead does not experience thermal instability within the fire resistance limit after thermal runaway, thus improving the reliability of fire protection. The A60 fireproof design using this invention is not only low in cost but also highly feasible, and it effectively guarantees the fire resistance of the container.

[0041] To specifically fix the top plate 21, please refer to... Figures 1-10 In a preferred embodiment, the top fireproof component 2 further includes two top crossbeams 24 and a top middle crossbeam 25. The two ends of the top crossbeams 24 are respectively fixedly connected to the two corresponding side vertical beams 14. The top plate 21 is fixedly connected to the two top crossbeams 24 and the top middle crossbeam 25.

[0042] To specifically achieve the fixed connection between the top horizontal beam 24 and the corresponding side vertical beam 14, please refer to... Figures 1-10 In a preferred embodiment, the top crossbeam 24 and the corresponding side vertical beam 14 are fixedly connected via corner brackets 26.

[0043] To improve fire resistance, please refer to Figures 7-10 In a preferred embodiment, the surface of the top intermediate crossbeam 25 is covered with a second top surface fireproof dressing 27.

[0044] To further improve fire prevention, please refer to Figures 6-10In a preferred embodiment, each of the top wall support ribs 22 is covered with a third top fireproof covering 28. Meanwhile, the first top fireproof covering 23, the second top fireproof covering 27 and the third top fireproof covering 28 are connected to each other to form a whole piece, forming a fireproof barrier on the inner surface of the top plate of the box.

[0045] To better understand this invention, the following is combined with... Figures 1-10 The working process of the fireproof structure of the energy storage tank provided by the present invention will be described in detail below: By setting side wall reinforcement 12 on the side partition 11, the strength of the side partition 11 is increased. At the same time, the side wall reinforcement 12 can also be used to compress the first side fireproof dressing 13, improving the adhesion between the first side fireproof dressing 13 and the side partition 11, ensuring that the tank wall does not experience thermal instability within the fire resistance limit after thermal runaway, thus improving the reliability of fire protection. By setting top wall reinforcement 22 on the top plate 21, the strength of the top plate 21 is increased. At the same time, the top wall reinforcement 22 can also be used to compress the first top surface fireproof dressing 23, improving the adhesion between the first top surface fireproof dressing 23 and the top plate 21, ensuring that the tank wall does not experience thermal instability within the fire resistance limit after thermal runaway, thus improving the reliability of fire protection. The A60 fireproof design using the present invention is not only low in cost but also highly feasible, and effectively guarantees the fire resistance of the tank.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A bulkhead fireproof structure of an energy storage tank, characterized by, The side fireproof assembly comprises a side partition plate, a plurality of side wall ribs and a first side fireproof material. Each side partition plate is enclosed in the energy storage box. Each side wall rib is arranged on the inner surface of the corresponding side partition plate, and each side wall rib comprises a side connecting part and a side pressing part. The first side fireproof material is arranged on the surface of the side partition plate, and the surface of the first side fireproof material away from the side partition plate abuts against the side pressing part. The side fireproof assembly further comprises a plurality of second side fireproof materials, and the second side fireproof materials are arranged on the corresponding side wall ribs. The top fireproof assembly comprises a top plate, a plurality of top wall ribs and a first top fireproof material. The top plate is fixed to the upper end of each side partition plate. Each top wall rib is arranged on the inner surface of the top plate, and each top wall rib comprises a top connecting part and a top pressing part. The first top fireproof material is arranged on the surface of the top plate, and the surface of the first top fireproof material away from the top plate abuts against the top pressing part.

2. The bulkhead fire protection structure of an energy storage tank according to claim 1, characterized by, Each side partition plate is fixed between two adjacent side vertical beams.

3. The bulkhead fire protection structure of an energy storage tank according to claim 1, characterized by, The distance between two adjacent side wall ribs is not greater than 600 mm.

4. The bulkhead fire protection structure of an energy storage tank according to claim 1, characterized by, The length of the side pressing part is not less than 65 mm.

5. The bulkhead fire protection structure of an energy storage tank according to claim 2, wherein The top fireproof assembly further comprises two top horizontal beams and a top middle horizontal beam.

6. The bulkhead fire protection structure of the energy storage tank according to claim 5, characterized by, The two ends of the top horizontal beam are fixedly connected with two corresponding side vertical beams.

7. The bulkhead fire protection structure of an energy storage tank according to claim 5, wherein The surface of the top middle horizontal beam is provided with a second top fireproof material.

8. The bulkhead fire protection structure of an energy storage tank according to claim 5, wherein The surface of each top wall rib is provided with a third top fireproof material.

Citation Information

Patent Citations

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    CN112510780A

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