Fire dike applied to aviation oil tank area

By setting up shock absorbing mechanisms and zigzag fire sludge in the fire dam, the problem of lack of shock absorbing in the existing fire dam under explosion impact is solved, and the safety protection of the navigation tank area and the structural impact resistance are improved.

CN223082132UActive Publication Date: 2025-07-11CHINA AVIATION FUEL CO LTD JIANGXI BRANCH
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Patent Information

Application Number
CN202421760839.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-24
Publication Date
2025-07-11
Estimated Expiration
2034-07-24

AI Technical Summary

Technical Problem

The existing fire dam lacks shock absorption effect under the impact of explosions, and cannot effectively reduce the impact of fire and explosion on the air tank area.

Method used

A shock absorbing mechanism is set up in the fire dam built with fireproof bricks, including annular firmware, sleeves, connecting rods, threaded springs and broken soil cones. Combined with serrated fireproof mud, the buffering shock absorbing and oil splash control are achieved through the design of hydraulic telescopic rods and internal cables.

Benefits of technology

It achieves effective shock absorption under the impact of explosion, reduces oil splash, protects the safety of the aviation oil tank area, and reduces the risk of fire spread. It has a simple structure and is easy to inspect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223082132U_ABST
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Abstract

The utility model discloses a fire dike applied to an aviation oil tank area, which belongs to the technical field of fire dikes and comprises a fire dike main body, fireproof bricks, a damping mechanism, a foundation base, a support pile, a monitoring damping mechanism, a flame detector and an audible and visual alarm. The fireproof bricks are built in the fireproof dike body, a damping cavity is formed in the fireproof dike body, the damping mechanism is arranged in the damping cavity, one side of the damping mechanism abuts against the inner wall of the fireproof dike body, the other end of the damping mechanism abuts against the fireproof bricks, and the bottom of the fireproof dike body is connected with the upper surface of the foundation base. A plurality of supporting piles are vertically installed on the lower surface of the foundation base, the monitoring and damping mechanism is installed on the top of the fire dike body, and a flame detector and an audible and visual alarm are installed on the monitoring and damping mechanism. The fireproof dike cable is placed in the cable frame, space is saved, damage caused by external construction is not prone to occurring, the whole fireproof dike is high in impact resistance, and oil splashing in the explosion process can be effectively reduced through the zigzag fireproof mud.
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Description

Technical Field

[0001] The utility model belongs to the technical field of fire dikes, and more specifically relates to a fire dike applied to an aviation oil tank area. Background Technique

[0002] Aviation fuel refers to some fuel varieties specifically designed for aircraft. Its quality is higher than that of the fuel used in heating systems and automobiles. It usually contains different additives to reduce the risk of icing and explosion due to high temperature. Aviation fuel is divided into two categories: aviation gasoline is used in aircraft with reciprocating engines. Aviation kerosene is used in aviation gas turbine engines and ramjet engines. The storage of aviation fuel mainly relies on specialized storage facilities, which include oil tanks, mobile refueling equipment, mobile oil receiving and dispensing devices, etc. The oil tank is usually designed as a vertical arch-top conical-bottom tank, and its bottom is in the shape of a conical-bottom funnel structure. This design helps water and impurities flow along the oil tank to the bottom. In addition, to ensure the quality and safety of aviation fuel, the storage environment needs to be strictly monitored and managed, including the control of temperature and humidity. This is because aviation fuel has special requirements for the storage environment and needs to avoid overheating or overcooling conditions, as well as excessive humidity, which may affect the quality and safety of aviation fuel. With the rapid development of the global aviation industry, as an indispensable energy source for air transportation, the safety issues in the storage, transportation, and filling processes of aviation fuel are becoming increasingly prominent. In the links such as oil depot expansion, pipeline laying, and refueling operations, there are potential fire risks. Once a fire occurs, it will not only cause serious environmental pollution but also endanger the safety of personnel and lead to huge economic losses. In the case of oil overflow and leakage in the storage tank area, combustible gas diffusion will occur. Once a fire or explosion accident occurs, a chain of disaster accidents will be formed. To reduce the impact of fires and explosions in the storage tank area, a fire dike is generally set in the storage tank area to reduce the impact. The Chinese patent (CN109603032A) in the prior art discloses a fire dike for a tank area. In its technical solution, an anti-seismic frame is arranged in the firebrick structure to achieve the anti-seismic effect during an explosion, but it cannot play a shock-absorbing effect on the impact generated by the explosion, but only improves the strength of the fire dike.

[0003] Therefore, how to provide a fire dike with a shock-absorbing effect is an urgent problem to be solved by those skilled in the art. Content of the Utility Model

[0004] In view of this, the utility model provides a fire dike applied to an aviation oil tank area. The fire dike cables are placed in the cable frame, which saves space and is not easily damaged due to external construction. The entire fire dike has strong impact resistance, and the serrated fire clay can effectively reduce the splashing of oil during the explosion.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A firebreak used in an aviation fuel tank area, comprising: a firebreak body, fire bricks, a shock absorbing mechanism, a foundation, supporting piles, a monitoring shock absorbing mechanism, a flame detector and an audible and visual alarm; the fire bricks are built inside the firebreak body, a shock absorbing cavity is provided inside the firebreak body, the shock absorbing cavity is located on one side of the fire bricks, the shock absorbing mechanism is provided inside the shock absorbing cavity, one end of the shock absorbing mechanism abuts against the inner wall of the firebreak body, and the other end abuts against the fire bricks, the bottom of the firebreak body is connected to the upper surface of the foundation, a plurality of supporting piles are vertically installed on the lower surface of the foundation, the monitoring shock absorbing mechanism is installed on the top of the firebreak body, and a flame detector and an audible and visual alarm are installed on the monitoring shock absorbing mechanism.

[0007] Furthermore, the shock absorbing mechanism includes: an annular fastener, a sleeve, a connecting rod, a threaded spring and a ground-breaking cone; the sleeve is centered on the annular fastener and is evenly arranged in three groups in the circumferential direction, and one end of the connecting rod is slidably connected to the interior of each group of the sleeves, and the other end of the connecting rod extends out of the sleeve and is connected to the ground-breaking cone. Among the three groups of ground-breaking cones, one group abuts against the inner wall of the firebreak body, and two groups abut against fireproof bricks. The threaded spring is located inside the sleeve, and one end of the threaded spring abuts against the connecting rod, and the other end abuts against the inner bottom of the sleeve. The bottom end of the connecting rod is also connected to the output end of the hydraulic telescopic rod, and the bottom end of the hydraulic telescopic rod is connected to the annular fastener.

[0008] Furthermore, the monitoring shock absorption mechanism includes: a protective pier, a roller, a cable frame, a hydraulic telescopic rod and a cover plate; the protective pier is installed on the top of the firebreak body, a plurality of rollers are provided, and all are placed on the inner bottom of the protective pier, the cable frame is placed on the roller, the base of the hydraulic telescopic rod is installed on the inner side wall of the protective pier, the output end of the hydraulic telescopic rod is connected to the cable frame, and the cover plate is connected to the top of the cable frame by bolts.

[0009] Furthermore, L-shaped fixing plates are installed on both sides of the foundation, and diagonal braces are arranged on the L-shaped fixing plates.

[0010] Furthermore, support piles are also installed at the bottom of the L-shaped fixing plate.

[0011] Furthermore, a plurality of barbs are installed on the support pile along the axial direction and the circumferential direction.

[0012] Furthermore, the outer surface of the firebreak body is coated with a layer of fireproof mud.

[0013] Furthermore, the fireproof mud is in a sawtooth shape.

[0014] The beneficial effects of the utility model are:

[0015] The utility model has a simple structure and is convenient to use. In the fire dike of the utility model, it is monitored by a flame detector and alarms through an audible and visual alarm. The cables are placed in a cable frame in an internal wiring manner. The cable frame is connected to a hydraulic telescopic rod. When an explosion occurs, the hydraulic telescopic rod can play a certain role in buffering and shock absorption. When the cables need to be repaired, only the bolts need to be removed and the cover plate can be taken off. When the impact of an explosion occurs, the connecting rod in the shock absorption mechanism compresses the screw spring to achieve the shock absorption effect. The cables of the fire dike of the utility model are placed in the cable frame, which saves space and is not easily damaged due to external construction. The whole fire dike has strong impact resistance, and the serrated fire clay can effectively reduce the splashing of oil during the explosion process. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0017] Figure 1 It is a schematic structural diagram of the present utility model.

[0018] Figure 2 It is a schematic structural diagram of the shock absorption mechanism of the present utility model.

[0019] Figure 3 It is a schematic structural diagram of the monitoring and shock absorption mechanism of the present utility model.

[0020] Among them, in the figure:

[0021] 1 - Fire dike main body; 2 - Fire brick; 3 - Shock absorption cavity; 4 - Shock absorption mechanism; 41 - Ring-shaped fastener; 42 - Sleeve; 43 - Connecting rod; 44 - Screw spring; 45 - Earth-breaking cone; 5 - Foundation base; 6 - Support pile; 7 - Monitoring and shock absorption mechanism; 71 - Protection pier; 72 - Roller; 73 - Cable frame; 74 - Hydraulic telescopic rod; 75 - Cover plate; 8 - Flame detector; 9 - Audible and visual alarm; 10 - L-shaped fixing plate; 11 - Diagonal brace; 12 - Barbs; 13 - Fire clay. Detailed Embodiment

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0023] Please refer to the appendix Figures 1 - 3 The present utility model provides a fire dike applied to an aviation oil tank area, comprising: a fire dike main body 1, fire bricks 2, a shock absorption mechanism 4, a foundation base 5, support piles 6, a monitoring shock absorption mechanism 7, a flame detector 8 and an audible and visual alarm 9; the fire bricks 2 are built inside the fire dike main body 1, a shock absorption cavity 3 is arranged inside the fire dike main body 1, the shock absorption cavity 3 is located on one side of the fire bricks 2, the shock absorption mechanism 4 is arranged inside the shock absorption cavity 3, and one side thereof abuts against the inner wall of the fire dike main body 1, and the other end abuts against the fire bricks 2. The bottom of the fire dike main body 1 is connected to the upper surface of the foundation base 5, and a plurality of support piles 6 are vertically installed on the lower surface of the foundation base 5. The monitoring shock absorption mechanism 7 is installed on the top of the fire dike main body 1, and the flame detector 8 and the audible and visual alarm 9 are installed on the monitoring shock absorption mechanism 7. The flame detector 8 and the audible and visual alarm 9 play the roles of monitoring and alarming. The foundation base 5 is buried deep below the ground, making the whole fire dike more solid.

[0024] The shock absorption mechanism 4 comprises: an annular fastener 41, a sleeve 42, a connecting rod 43, a threaded spring 44 and a soil-breaking cone 45; three groups of the sleeves 42 are circumferentially and evenly arranged with the annular fastener 41 as the center. One end of the connecting rod 43 is slidably connected inside each group of the sleeves 42, and the other end of the connecting rod 43 extends out of the sleeve 42 and is connected to the soil-breaking cone 45. Among the three groups of the soil-breaking cones 45, one group abuts against the inner wall of the fire dike main body 1, and two groups abut against the fire bricks 2. The threaded spring 44 is located inside the sleeve 42, and one end of the threaded spring 44 abuts against the connecting rod 43, and the other end abuts against the inner bottom of the sleeve 42. The bottom end of the connecting rod 43 is also connected to the output end of a hydraulic telescopic member, and the bottom end of the hydraulic telescopic member is connected to the annular fastener 41. A plurality of groups of the shock absorption mechanisms 4 are provided, and each group of the shock absorption mechanisms 4 is firmly abutted between the inner wall of the fire dike main body 1 and the fire bricks 2, playing a role in shock absorption when bearing an explosion impact.

[0025] The monitoring shock absorption mechanism 7 comprises: a protective pier 71, rollers 72, a cable frame 73, a hydraulic telescopic rod 74 and a cover plate 75; the protective pier 71 is installed on the top of the fire dike main body 1, a plurality of the rollers 72 are provided and are all placed on the inner bottom of the protective pier 71, the cable frame 73 is placed on the rollers 72, the base of the hydraulic telescopic rod 74 is installed on the inner side wall of the protective pier 71, the output end of the hydraulic telescopic rod 74 is connected to the cable frame 73, and the cover plate 75 is connected to the top of the cable frame 73 by bolts. The cables for supplying power and transmitting signals to the flame detector 8 and the audible and visual alarm 9 are all placed in the cable frame 73. By removing the bolts and taking off the cover plate 75, maintenance can be carried out. When bearing an explosion impact, the hydraulic telescopic rod 74 can also play a certain buffering role. A partition can also be arranged inside the cable frame 73 to store different cables separately, facilitating subsequent maintenance.

[0026] On both sides of the foundation base 5, L-shaped fixing plates 10 are installed. An inclined strut 11 is provided on the L-shaped fixing plate 10, which expands the force-bearing area of the bottom surface of the fire dike, prevents sinking, and enables the fire dike of the present utility model to have better impact resistance.

[0027] At the bottom of the L-shaped fixing plate 10, a support pile 6 is also installed.

[0028] A plurality of barbs 12 are installed on the support pile 6 along the axial and circumferential directions, making the installation of the fire dike of the present utility model more firm.

[0029] The outer surface of the fire dike main body 1 is coated with a layer of fire clay 13 to prevent the fire dike from being damaged by high-temperature burning.

[0030] The fire clay 13 is in a serrated shape. The serrated fire clay can effectively reduce the splashing of oil during an explosion and reduce damage.

[0031] The structure of the present utility model is simple and convenient to use. In the fire dike of the present utility model, it is monitored by a flame detector 8 and alarmed by an audible and visual alarm 9. The cable is placed in a cable frame 73 in an internal wiring manner. The cable frame 73 is connected to a hydraulic telescopic rod 74. During an explosion, the hydraulic telescopic rod 74 can play a certain role in buffering and shock absorption. When the cable needs to be repaired, only the bolts need to be removed and the cover plate 75 can be taken off. When the impact of an explosion occurs, the connecting rod 43 in the shock absorption mechanism 4 compresses the threaded spring 44 to achieve the shock absorption effect; the cable of the fire dike of the present utility model is placed in the cable frame 73, which saves space and is not easily damaged due to external construction. The entire fire dike has strong impact resistance, and the serrated fire clay 13 can effectively reduce the splashing of oil during the explosion.

[0032] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fire dike applied to an aviation oil tank area, characterized in that, Including: A fire dike main body (1), fire bricks (2), a shock absorption mechanism (4), a foundation base (5), support piles (6), a monitoring shock absorption mechanism (7), a flame detector (8), and an audible and visual alarm (9); the fire bricks (2) are built inside the fire dike main body (1), a shock absorption cavity (3) is arranged inside the fire dike main body (1), the shock absorption cavity (3) is located on one side of the fire bricks (2), the shock absorption mechanism (4) is arranged inside the shock absorption cavity (3), and one side abuts against the inner wall of the fire dike main body (1), and the other end abuts against the fire bricks (2). The bottom of the fire dike main body (1) is connected to the upper surface of the foundation base (5), and a plurality of support piles (6) are vertically installed on the lower surface of the foundation base (5). The monitoring shock absorption mechanism (7) is installed on the top of the fire dike main body (1), and a flame detector (8) and an audible and visual alarm (9) are installed on the monitoring shock absorption mechanism (7).

2. The fire dike applied to the aviation oil tank area according to claim 1 is characterized in that, The shock absorption mechanism (4) includes: an annular fastener (41), a sleeve (42), a connecting rod (43), a threaded spring (44), and a ground-breaking cone (45); three groups of the sleeves (42) are circumferentially and uniformly arranged with the annular fastener (41) as the center. One end of the connecting rod (43) is slidably connected inside each group of the sleeves (42), the other end of the connecting rod (43) extends out of the sleeve (42) and is connected to the ground-breaking cone (45). Among the three groups of the ground-breaking cones (45), one group abuts against the inner wall of the fire dike main body (1), and two groups abut against the fire bricks (2). The threaded spring (44) is located inside the sleeve (42), and one end of the threaded spring (44) abuts against the connecting rod (43), and the other end abuts against the inner bottom of the sleeve (42). The bottom end of the connecting rod (43) is also connected to the output end of a hydraulic telescopic member, and the bottom end of the hydraulic telescopic member is connected to the annular fastener (41).

3. A fire dike applied to an aviation oil tank area according to claim 1, characterized in that, The monitoring shock absorption mechanism (7) includes: a protective pier (71), rollers (72), a cable frame (73), a hydraulic telescopic rod (74), and a cover plate (75); the protective pier (71) is installed on the top of the fire dike main body (1), a plurality of the rollers (72) are provided and are all placed on the inner bottom of the protective pier (71), the cable frame (73) is placed on the rollers (72), the base of the hydraulic telescopic rod (74) is installed on the inner side wall of the protective pier (71), the output end of the hydraulic telescopic rod (74) is connected to the cable frame (73), and the cover plate (75) is connected to the top of the cable frame (73) by bolts.

4. A fire dike applied to an aviation oil tank area according to claim 1, characterized in that, L-shaped fixing plates (10) are installed on both sides of the foundation base (5), and diagonal braces (11) are arranged on the L-shaped fixing plates (10).

5. A fire dike applied to an aviation oil tank area according to claim 4, characterized in that, Support piles (6) are also installed at the bottom of the L-shaped fixing plates (10).

6. A fire dike applied to an aviation oil tank area according to claim 5, characterized in that, A plurality of barbs (12) are installed on the support piles (6) along the axial and circumferential directions.

7. A fire dike applied to an aviation oil tank area according to claim 1, characterized in that, A layer of fire clay (13) is coated on the outer surface of the fire dike main body (1).

8. A fire dike applied to an aviation oil tank area according to claim 7, characterized in that, The shape of the fire clay (13) is serrated.

Citation Information

Patent Citations

  • Fire dike of tank region

    CN109603032A