Efficient fire retardant device

Through the design of a multi-layered structure and adjustment mechanism, the problems of insufficient flame spread and installation adaptability of existing flame arrestors have been solved, achieving efficient flame arrest and flexible installation, and ensuring the effective application of the device in various environments.

CN223988080UActive Publication Date: 2026-03-13HUNAN TIANCHENG HYDROGEN ENERGY TECHNOLOGY IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing flame arrestors cannot guarantee flame arrest effectiveness during use. The spread of flames and high-temperature gases may damage equipment and facilities, leading to production interruptions and increased maintenance costs. At the same time, they lack adjustment functions and cannot adapt to different environments and installation locations, limiting their application scenarios.

Method used

It adopts a multi-layer structure design, including a fire-arresting element composed of metal mesh, gravel layer, ceramic material and porous material, combined with elastic fire-arresting component and adjustment mechanism. The length and angle of the jet pipe can be adjusted by rotating the double-headed screw to adapt to different installation requirements.

Benefits of technology

It improves the reliability and adaptability of flame arresters, enabling them to maintain functionality under various conditions, prevent flame spread, reduce equipment damage and maintenance costs, and adapt to the needs of different installation positions and angles.

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Abstract

The utility model discloses an efficient fire-retardant device, which relates to the technical field of fireproof and flame-retardant devices and comprises a bottom plate. A second connecting plate is connected to the bottom plate, a first connecting plate is connected to the end, away from the bottom plate, of the second connecting plate, mounting rings are connected to the first connecting plate and the second connecting plate, and two adjusting mechanisms are connected between the two mounting rings. The elastic fire-retardant piece is located between the two fire-retardant elements, provides an additional fire-retardant effect and is used for preventing gas leakage, when flame or high-temperature gas passes through the device, the flame or the high-temperature gas firstly encounters the metal net, the metal net can block part of heat and flame, the flame continues to move forwards and encounters a gravel layer, a ceramic material and a porous material, and the flame or the high-temperature gas is prevented from leaking. The materials further prevent flame from spreading through heat absorption and physical blocking, the reliability of the fire-retardant device is improved through the multi-layer structure and the elastic design, the functions of the fire-retardant device can be kept under various conditions, and the fire-retardant device can adapt to different working environments and conditions such as high-temperature, high-pressure or corrosive environments.
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Description

Technical Field

[0001] This utility model relates to the field of fire prevention and flame retardant devices, specifically to a high-efficiency flame retardant device. Background Technology

[0002] The main purpose of this high-efficiency flame arrestor is to prevent the spread of flames and high-temperature gases, thereby protecting the safety of personnel and equipment. In flammable and explosive environments, such as petrochemical, natural gas processing, and coal mines, flame arrestors can be installed on pipelines, equipment, or containers to prevent flames from spreading from one place to another and reduce the risk of fire. In industrial production processes, flame arrestors can protect equipment such as pipelines, storage tanks, and reactors from damage or explosions caused by the spread of flames. In gas emission systems, flame arrestors can be installed at the end of emission pipelines to prevent flames in the emitted gas from flowing back into the equipment or pipelines and causing accidents. They are widely used in various industrial and civil environments where fires or explosions may occur to ensure the safety of life and property.

[0003] Chinese Patent Publication No. CN213527239U, entitled "A Pipe-End Flame Arrestor Device," includes a shell, a flame arrestor core, and multiple fixing mechanisms. Both ends of the shell are fixedly connected to a first barrier ring, and multiple through holes are provided on the front and rear sides of the shell. This invention employs a hexagonal honeycomb structure, composed of a flame arrestor core and a shell. This structure features uniform units, making it less susceptible to icing due to high humidity. Because each unit is interconnected, it possesses superior strength and rigidity. Furthermore, the diameter and length of the corresponding flame arrestor core cell can be calculated using calculations and the finite element difference method, based on the type of combustible gas, the flame arrestor core material, and the burn-through time. The device can be installed in various shell configurations, facilitating installation and disassembly, significantly reducing costs and lowering product development risks.

[0004] The shortcomings of the above solution are as follows: although the solution can save costs, it cannot guarantee the fire-retardant effect during use. The spread of flames and high-temperature gases may damage nearby equipment and facilities, leading to production interruption and increased maintenance costs. It will also cause environmental damage. Furthermore, the device cannot be adjusted, and the lack of adjustment function means that the device may not be able to adapt to changes in different environments or conditions, and cannot adapt to various installation positions and angles, thus limiting its application in different scenarios. Utility Model Content

[0005] The purpose of this utility model is to provide a high-efficiency flame arrestor to solve the technical problems in the prior art where the flame arrestor effect cannot be guaranteed during use, the spread of flames and high-temperature gases may damage nearby equipment and facilities, leading to production interruption and increased maintenance costs, as well as environmental damage. Furthermore, the device cannot be adjusted, and the lack of adjustment function means that the device may not be able to adapt to changes in different environments or conditions, and cannot adapt to various installation positions and angles, thus limiting its application in different scenarios.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A high-efficiency fire arrestor includes a base plate;

[0008] A second connecting plate is connected to the base plate. A first connecting plate is connected to the end of the second connecting plate away from the base plate. Mounting rings are connected to both the first and second connecting plates. Two sets of adjustment mechanisms are connected between the two mounting rings. Connecting members are connected to the ends of the two mounting rings away from the first and second connecting plates. A telescopic plate is connected between the two connecting members. A fire-arresting element is connected to both mounting rings. The fire-arresting element includes a metal mesh. A gravel layer is connected to one side of the metal mesh. Ceramic material is connected to the side of the gravel layer away from the metal mesh.

[0009] As a further embodiment of this utility model: both the first connecting plate and the second connecting plate are provided with semi-circular through holes.

[0010] As a further embodiment of this invention, multiple jet pipes are connected to the mounting ring.

[0011] As a further embodiment of this utility model: each set of adjustment mechanisms includes a double-headed screw and two fixing plates, with the two fixing plates respectively connected to two mounting rings.

[0012] As a further embodiment of this utility model: both ends of the double-ended screw are connected to connectors, and the double-ended screw is connected between the two fixed plates through the connectors.

[0013] As a further embodiment of this utility model, the connector is an arc-shaped structure.

[0014] As a further embodiment of this invention, a porous material is connected to the side of the ceramic material away from the gravel layer.

[0015] As a further embodiment of this invention, the flame-retardant element has a semi-circular structure.

[0016] As a further embodiment of this invention: an elastic fire-arresting element is connected between the two fire-arresting elements.

[0017] As a further embodiment of this utility model: the connecting plate one and the connecting plate two are connected to a sealing element on the side away from the mounting ring.

[0018] The beneficial effects of this utility model are:

[0019] 1. The elastic flame arrestor of this utility model is located between two flame arrestor elements, providing additional flame arresting effect and allowing a certain degree of deformation. The sealing element is connected to the side of the connecting plate one and the connecting plate two away from the mounting ring to prevent gas leakage. When the flame or high-temperature gas passes through the device, it first encounters the metal mesh, which blocks some of the heat and flame. The flame continues to advance and encounters the gravel layer, ceramic material and porous material. These materials further prevent the spread of the flame by absorbing heat and physical barrier. The multi-layer structure and elastic design improve the reliability of the flame arrestor, enabling it to maintain its function under various conditions and adapt to different working environments and conditions, such as high temperature, high pressure or corrosive environment.

[0020] 2. The first and second connecting plates of this utility model are provided with semi-circular through holes for gas flow. The mounting ring is connected to the first and second connecting plates to support the jet pipe. The jet pipe is connected to the mounting ring for conveying gas or liquid. Two sets of adjustment mechanisms (each set includes a double-headed screw and two fixing plates) are connected between the two mounting rings. By rotating the double-headed screw, the position of the fixing plate can be adjusted, thereby changing the length or angle of the jet pipe and adjusting the gas flow. The connecting piece is connected to the far end of the two mounting rings, and the telescopic plate is connected between the two connecting pieces, allowing the device to extend and retract to a certain extent to adapt to different installation requirements. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a front view structural diagram of the present invention;

[0024] Figure 3 This is a side view structural diagram of the present invention.

[0025] In the diagram: 1. Connecting plate one; 2. Mounting ring; 3. Air jet pipe; 4. Fixing plate; 5. Double-ended screw; 6. Connector; 7. Connecting plate two; 8. Base plate; 9. Connector; 10. Telescopic plate; 11. Flame arrestor element; 12. Elastic flame arrestor element; 13. Sealing element. Detailed Implementation

[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1-3 As shown, a high-efficiency fire arrestor includes a base plate 8, on which a second connecting plate 7 is connected. A first connecting plate 1 is connected to the end of the second connecting plate 7 furthest from the base plate 8. Both the first connecting plate 1 and the second connecting plate 7 have semi-circular through holes. Mounting rings 2 are connected to both the first connecting plate 1 and the second connecting plate 7. Multiple air jet pipes 3 are connected to the mounting rings 2. Two sets of adjusting mechanisms are connected between two mounting rings 2. Each set of adjusting mechanisms includes a double-ended screw 5 and two fixing plates 4. The two fixing plates 4 are respectively connected to the two mounting rings 2. Connecting heads 6 are connected to both ends of the double-ended screw 5. A connector 6 is connected between the two fixed plates 4. A connector 9 is connected to one end of each of the two mounting rings 2 away from the first and second mounting plates 7. The connector 9 has an arc-shaped structure. A telescopic plate 10 is connected between the two connectors 9. A fire-arresting element 11 is connected to each of the two mounting rings 2. The fire-arresting element 11 includes a metal mesh, a gravel layer connected to one side of the metal mesh, a ceramic material connected to the side of the gravel layer away from the metal mesh, and a porous material connected to the side of the ceramic material away from the gravel layer. The fire-arresting element 11 has a semi-circular structure, and an elastic fire-arresting element 12 is connected between the two fire-arresting elements 11.

[0028] The connecting plate 1 and the connecting plate 7 are connected to a sealing element 13 on the side away from the mounting ring 2.

[0029] The working principle of this utility model is as follows: The base plate 8 serves as the bottom support of the device. The connecting plate 2 7 is connected to the base plate 8, and its end away from the base plate 8 is connected to the connecting plate 1. The connecting plate 1 1 and the connecting plate 2 7 are provided with semi-circular through holes for gas flow. The mounting ring 2 is connected to the connecting plate 1 1 and the connecting plate 2 7 to support the jet pipe 3. The jet pipe 3 is connected to the mounting ring 2 for conveying gas or liquid. Two sets of adjustment mechanisms (each set includes a double-headed screw 5 and two fixing plates 4) are connected between the two mounting rings 2. By rotating the double-headed screw 5, the position of the fixing plate 4 can be adjusted, thereby changing the length or angle of the jet pipe 3 and adjusting the gas flow. The connecting piece 9 (arc-shaped structure) is connected to the far end of the two mounting rings 2. The telescopic plate 10 is connected between the two connecting pieces 9, allowing the device to extend and retract to a certain extent to adapt to different installation requirements. The flame-arresting element 11 is composed of metal mesh, gravel layer, ceramic material and porous material. The device is composed of materials forming a semi-circular structure. One side of the metal mesh is connected to a gravel layer, the other side to a ceramic material, and the third side to a porous material. These materials work together to prevent the spread of flames through physical barriers and heat absorption. An elastic flame arrestor 12 is located between two flame arrestor elements 11, providing additional flame arresting effect and allowing for a certain degree of deformation. A seal 13 is connected to the side of connecting plate 1 and connecting plate 7 away from the mounting ring 2 to prevent gas leakage. When a flame or high-temperature gas passes through the device, it first encounters the metal mesh, which blocks some of the heat and flame. As the flame continues to advance, it encounters the gravel layer, ceramic material, and porous material. These materials further prevent the spread of flames through heat absorption and physical barriers. The seal 13 ensures the airtightness of the device, preventing the spread of flames and heat through the connections of the device. The multi-layered physical barriers and heat absorption effectively prevent the spread of flames.

[0030] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A high-efficiency fire stopping device comprising a bottom plate (8), characterized in that: a connecting plate II (7) is connected to the bottom plate (8), one end of the connecting plate II (7) away from the bottom plate (8) is connected with a connecting plate I (1), the connecting plate I (1) and the connecting plate II (7) are both connected with mounting rings (2), two groups of adjusting mechanisms are connected between the two mounting rings (2), two connecting pieces (9) are connected to one end of the two mounting rings (2) away from the connecting plate I (1) and the connecting plate II (7), a telescopic plate (10) is connected between the two connecting pieces (9), fire stopping elements (11) are connected to the two mounting rings (2), the fire stopping element (11) comprises a metal mesh, one side of the metal mesh is connected with a gravel layer, and one side of the gravel layer away from the metal mesh is connected with a ceramic material.

2. A high efficiency flame arrestor according to claim 1, wherein The connecting plate I (1) and the connecting plate II (7) are both provided with semicircular through holes.

3. A high efficiency flame arrestor according to claim 1, wherein A plurality of air injection pipes (3) are connected to the mounting ring (2).

4. A high efficiency flame arrestor according to claim 1 wherein, Each group of adjusting mechanisms comprises a double-headed screw rod (5) and two fixed plates (4), and the two fixed plates (4) are connected to the two mounting rings (2) respectively.

5. A high efficiency flame arrestor according to claim 4 wherein, The double-headed screw rod (5) is connected between the two fixed plates (4) through the connecting heads (6) at both ends of the double-headed screw rod (5).

6. A high efficiency flame arrestor according to claim 1 wherein, The connecting piece (9) is in a circular arc structure.

7. A high efficiency flame arrestor according to claim 1 wherein, The ceramic material is connected with a porous material on one side away from the gravel layer.

8. A high efficiency flame arrestor according to claim 1 wherein, The fire stopping element (11) is in a semicircular structure.

9. A high efficiency flame arrestor according to claim 1 wherein, An elastic fire stopping piece (12) is connected between the two fire stopping elements (11).

10. A high efficiency flame arrestor according to claim 1 wherein, The connecting plate I (1) and the connecting plate II (7) are connected with sealing pieces (13) on one side away from the mounting ring (2).

Citation Information

Patent Citations

  • Pipe end fire retardant device

    CN213527239U