Fireproof gas clamp

Abstract

A fireproof gas clamp relates to the technical field of bridge cable facilities, is cylindrical and comprises an upper gas clamp and a lower gas clamp, fireproof layers are arranged on the outer surface of the upper gas clamp and the outer surface of the lower gas clamp, and each fireproof layer sequentially comprises a first epoxy fireproof coating layer, a reinforced high-temperature fiber net, a second epoxy fireproof coating layer and a fluorocarbon coating layer from inside to outside. The inner surface of the upper gas clamp and the inner surface of the lower gas clamp are provided with fireproof layers, and each fireproof layer sequentially comprises a silicone structural adhesive layer and an aerogel layer from inside to outside. According to the utility model, the gas clamp protects the main cable bearing a detonation high-temperature environment, so that the whole protection system is perfected, and finally, the bearing structure is effectively protected under the condition that the main cable is damaged by high-temperature combustion.

Description

Technical Field

[0001] This utility model relates to the field of bridge cable facilities technology, and in particular to a fireproof gas clamp. Background Technology

[0002] The main cable is the main load-bearing component of a suspension bridge. It mainly bears tensile force and is generally made of steel with high tensile strength (steel wire, steel cable, etc.).

[0003] With the increase in vehicles and traffic volume, fires caused by traffic accidents are frequent in cable-stayed bridges. Currently, the protection of the dehumidifying air clips on the main cables of bridges only uses relatively simple paint anti-corrosion coatings, which is a weak link in the entire main cable fire protection system. There are no relevant case studies on the protection of the air clips in complex environments (such as high-temperature combustion). Although the cables, as key load-bearing components, have good mechanical properties and weather resistance, their fire resistance is poor. The high-temperature radiation from combustion can directly damage the load-bearing structure of the main cables through the air clips, potentially leading to the destruction of the entire bridge's load-bearing system and seriously threatening bridge safety. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a fireproof gas clamp to protect the main cable from the high temperature environment of deflagration, thereby improving the entire protection system and ultimately achieving effective protection of the load-bearing structure when the main cable is damaged by high temperature combustion.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A fireproof air clip, cylindrical in shape, includes an upper air clip and a lower air clip. The outer surfaces of both the upper and lower air clips are coated with a fireproof layer, comprising, from the inside out, a first epoxy fireproof coating layer, a reinforcing high-temperature fiber mesh, a second epoxy fireproof coating layer, and a fluorocarbon coating layer. The inner surfaces of both air clips are coated with a fireproof layer, comprising, from the inside out, a silicone structural adhesive layer and an aerogel layer. The upper and lower air clips are semi-cylindrical, made of stainless steel, and are assembled into a cylindrical air clip by bolts, nuts, or other fixing structures. The first and second epoxy fireproof coating layers are applied by coating scraping, each approximately 3mm thick, serving to insulate against high-temperature conduction. The reinforcing high-temperature fiber mesh is bonded and fixed by the coating layers, reinforcing the fireproof coating. The fluorocarbon coating layer is a topcoat layer, applied by roller coating, brushing, or spraying, with a thickness of approximately 80μm, used for corrosion protection and coloring at room temperature. The silicone structural adhesive layer is applied by a scraping process and is used to fix the aerogel. The aerogel layer, applied by a scraping process, is about 1 cm thick and serves to insulate against high-temperature conduction.

[0007] Preferably, the material of the reinforced high-temperature fiber mesh is ceramic fiber or high-silica fiber.

[0008] Preferably, the aerogel layer is made of quartz nano-aerogel, i.e., silica nano-aerogel or silicon-based nano-aerogel.

[0009] Preferably, the aerogel layer surface of the upper air clip is provided with a structural reinforcing mesh. This is used to strengthen the structural strength of the fireproof layer on the inner surface of the upper air clip and prevent the fireproof layer from peeling off.

[0010] Preferably, the surface of the aerogel layer of the lower air clip is also provided with a structural reinforcing mesh to enhance the structural strength of the fireproof layer on the inner surface of the lower air clip.

[0011] Preferably, the reinforcing mesh of the upper and lower air clamps is made of stainless steel wire.

[0012] The advantages of this utility model are: the air clamp protects the main cable from the high temperature environment of deflagration, thus perfecting the entire protection system and ultimately achieving effective protection of the load-bearing structure when the main cable is damaged by high temperature combustion. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the base of this utility model;

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 for Figure 1 Enlarged diagram of point B in the middle.

[0016] Explanation of key component symbols in the diagram:

[0017] Air clips: 11. Upper air clip; 12. Lower air clip;

[0018] Fireproof layers: 21. First epoxy fireproof coating layer; 22. Reinforcing high-temperature fiber mesh; 23. Second epoxy fireproof coating layer; 24. Fluorocarbon coating layer; 25. Silicone structural adhesive layer; 26. Aerogel layer; 27. Structural reinforcing mesh. Detailed Implementation

[0019] To more clearly illustrate this utility model, the following description, in conjunction with the accompanying drawings, will provide further details.

[0020] Example 1: As Figure 1 As shown, a fireproof gas clamp is cylindrical and includes an upper gas clamp 11 and a lower gas clamp 12.

[0021] Combination Figure 2-3As shown, the outer surfaces of the upper air clip 11 and the lower air clip 12 are provided with fireproof layers, which, from the inside out, include a first epoxy fireproof coating layer 21, a reinforcing high-temperature fiber mesh 22, a second epoxy fireproof coating layer 23, and a fluorocarbon coating layer 24. The inner surfaces of the upper air clip 11 and the lower air clip 12 are provided with fireproof layers, which, from the inside out, include a silicone structural adhesive layer 25 and an aerogel layer 26.

[0022] The reinforced high-temperature fiber mesh 22 can be made of ceramic fiber or high-silica fiber, and the aerogel layer 26 can be made of quartz nano-aerogel.

[0023] Example 2: Combination Figure 2 As shown, based on Embodiment 1, the surface of the aerogel layer 26 of the upper air clip 11 is provided with a structural reinforcing mesh 27.

[0024] Example 3: Combination Figure 3 As shown, based on Embodiment 2, the surface of the aerogel layer 26 of the lower air clip 12 is also provided with a structural reinforcing mesh 27.

[0025] The structural reinforcing mesh 27 of the upper air clamp 11 and the lower air clamp 12 is made of stainless steel wire.

[0026] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. The present utility model can be used in similar products. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A fireproof gas clip, characterized in that: The air clamp is cylindrical and includes an upper air clamp (11) and a lower air clamp (12). The outer surfaces of the upper air clip (11) and the lower air clip (12) are provided with fireproof layers, which include, from the inside out, a first epoxy fireproof coating layer (21), a reinforced high-temperature fiber mesh (22), a second epoxy fireproof coating layer (23), and a fluorocarbon coating layer (24). The inner surfaces of the upper air clip (11) and the lower air clip (12) are provided with fireproof layers, which include a silicone structural adhesive layer (25) and an aerogel layer (26) from the inside to the outside.

2. The fireproof gas clip according to claim 1, characterized in that: The reinforced high-temperature fiber mesh (22) is made of ceramic fiber or high-silica fiber.

3. A fireproof gas clip according to claim 1, characterized in that: The aerogel layer (26) is made of quartz nano-aerogel.

4. A fireproof gas clip according to any one of claims 1-3, characterized in that: The aerogel layer (26) of the upper air clip (11) is provided with a structural reinforcing mesh (27).

5. A fireproof gas clip according to claim 4, characterized in that: The aerogel layer (26) of the lower air clip (12) is provided with a structural reinforcing mesh (27).

6. A fireproof gas clip according to claim 5, characterized in that: The structural reinforcing mesh (27) of the upper air clamp (11) and the lower air clamp (12) is made of stainless steel wire.

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