Integrally vulcanized nonmetal expansion joint structure

Abstract

The utility model discloses an integrally vulcanized nonmetal expansion joint structure which comprises a skin body. The skin body comprises two inner fluorine rubber layers which are arranged in a laminated mode, and a stainless steel mesh layer is arranged between the two inner fluorine rubber layers. Outer fluorine rubber layers are compounded on the outer sides, deviating from each other, of the two fluorine rubber layers respectively, and aramid fiber cloth layers are arranged between the outer fluorine rubber layers and the inner fluorine rubber layers. The skin body of the expansion joint is of a multi-layer composite structure, the skin structure is provided with the two inner fluorine rubber layers, the two outer fluorine rubber layers, the stainless steel mesh and the aramid fiber cloth layer, the skin body is formed after the two inner fluorine rubber layers, the two outer fluorine rubber layers, the stainless steel mesh and the aramid fiber cloth layer are composited, the structural strength, the corrosion resistance and the high-temperature resistance of the expansion joint are remarkably improved under the condition that the structures of all the layers are composited, and the service life of the expansion joint is longer; and meanwhile, the mounting mode is simplified, and the mounting is convenient and stable.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion joints, in particular to an integral vulcanized non-metal expansion joint structure. Background Art

[0002] In various circulating fluidized bed boilers, gas turbine waste heat boilers, and chemical, power generation, cement, papermaking, high-rise building and other industries, equipment and equipment, equipment and pipelines, pipelines and pipelines deform due to thermal expansion and contraction. Usually, non-metallic compensators with corrosion resistance, that is, non-metallic expansion joints are used to compensate for displacement and absorb vibration and reduce noise. They are mainly made of fiber fabrics, rubber, and other high-temperature resistant materials to compensate for the vibration of fans and air ducts and pipeline deformation.

[0003] Existing non-metallic expansion joints are made of silicone rubber fiberglass cloth, which have poor resistance to strong corrosion from sulfides, cyanides, acids, alkalis, nitrates and other chemicals in the flue gas and dust discharged from the above-mentioned system, are easily damaged, have poor sealing, and are easy to break due to poor structural strength and poor temperature resistance, resulting in a short service life and a low removal rate of harmful substances, which can cause environmental pollution. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide an integral vulcanized non-metallic expansion joint structure, which has the characteristics of being simple and reliable, high in strength, corrosion-resistant, and high-temperature-resistant.

[0005] The technical solution adopted by the utility model is: an integral vulcanized non-metallic expansion joint structure, including a skin body, and the skin body is provided with fixing holes arranged at intervals on both sides of the length; the skin body includes two inner fluororubber layers arranged in a laminated manner, and a stainless steel mesh layer is provided between the two inner fluororubber layers; the outer sides of the two inner fluororubber layers that are separated from each other are also compounded with outer fluororubber layers respectively, and an aramid cloth layer is provided between the outer fluororubber layer and the inner fluororubber layer.

[0006] In the technical solution, the skin body of the expansion joint adopts a multi-layer composite structure. The skin structure has two inner fluororubber layers and two outer fluororubber layers, as well as a stainless steel mesh and an aramid cloth layer. After being compounded, the skin body is formed. The structural strength, corrosion resistance and high temperature capability of the expansion joint are significantly improved under the composite structure of each layer, and its service life is longer; the installation and fixation adopts a fixed ring structure, which saves costs, simplifies the installation method, and has the characteristics of easy installation and stability.

[0007] Preferably, a fire retardant paint layer is sprayed on the outer surface of the skin body.

[0008] Preferably, the skin body is vulcanized as a whole.

[0009] Preferably, the outer surface of the upper end of the skin body is provided with spaced-apart limiting ridges, and the fixing ring is located between the two limiting ridges.

[0010] Preferably, limiting plates arranged along the longitudinal direction of the skin body are provided at both edges of the skin body in the longitudinal direction. The limiting plates are attached to the surface of the skin body, and through holes opposite to the fixing holes are provided on the limiting plates.

[0011] Preferably, the stainless steel mesh layer is a 304 stainless steel wire mesh structure.

[0012] The beneficial effects of the present utility model are as follows: In the present utility model, the skin body of the expansion joint body adopts a multi-layer composite structure. The skin structure has two inner fluororubber layers, two outer fluororubber layers, a stainless steel mesh and an aramid cloth layer. After being compounded, a skin body is formed. Under the compounding of each layer structure, the structural strength, corrosion resistance and high-temperature resistance of the expansion joint are significantly improved, and its service life is longer; the installation and fixation adopt a fixing ring structure, which saves costs and simplifies the installation method, and has the characteristics of convenient and stable installation, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 It is a structural diagram of the integral vulcanized non-metallic expansion joint structure provided in the embodiment of the present utility model.

[0015] Figure 2 It is a structural diagram of the skin body of the integral vulcanized non-metallic expansion joint structure provided in the embodiment of the present utility model.

[0016] Reference numerals: skin body 100, inner fluororubber layer 110, stainless steel mesh layer 120, outer fluororubber layer 130, aramid cloth layer 140, limiting rib 150, limiting plate 200, fixing bolt 300, heat insulation cotton 400. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will describe in detail the embodiments of the technical solutions of the present utility model with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, and thus are only examples and cannot be used to limit the protection scope of the present utility model.

[0018] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present utility model belongs.

[0019] Such as Figure 1 and Figure 2As shown in the figure, a specific embodiment of the utility model provides an integral vulcanized non-metal expansion joint structure, which has the advantages of high structural strength, corrosion resistance, etc. Specifically, it includes a skin body 100, and fixed holes arranged at intervals are provided on both long sides of the skin body 100. The skin body 100 includes two inner fluororubber layers 110 arranged in a laminated manner, and a stainless steel mesh layer 120 is provided between the two inner fluororubber layers 110. Outer fluororubber layers 130 are respectively compounded on the outer sides of the two inner fluororubber layers 110 facing away from each other, and an aramid fabric layer 140 is provided between the outer fluororubber layer 130 and the inner fluororubber layer 110.

[0020] As Figure 1 and Figure 2 As shown in the figure, through the above settings, the skin body 100 of the expansion joint in this embodiment adopts a multi-layer composite structure. The skin structure has two inner fluororubber layers 110 and two outer fluororubber layers 130, as well as a stainless steel mesh layer 120 and an aramid fabric layer 140. After being compounded, the skin body 100 is formed. Under the compounding of each layer structure, the structural strength, corrosion resistance and high-temperature resistance of the expansion joint are significantly improved, and its service life is longer. The installation and fixation adopt the fixed ring 200 structure, which has the characteristics of convenient installation and stability.

[0021] As Figure 1 and Figure 2 As shown in the figure, in order to improve the fire resistance effect of the expansion joint, a fireproof paint layer is sprayed on the outer surface of the skin body 100 in this embodiment. And the skin body 100 is subjected to integral vulcanization treatment. The skin adopts a non-metal composite integral vulcanized material, making this solution have characteristics such as high airtightness, high flexibility, high temperature resistance and long service life.

[0022] As Figure 1 and Figure 2 As shown in the figure, in order to improve the fixing firmness, in this embodiment, limiting convex ribs 150 arranged along the long direction of the skin body 100 are provided on both long sides of the skin body 100, and the fixed holes are located inside the limiting convex ribs 150. At the same time, in this embodiment, limiting plates 200 arranged along the long direction of the skin body are also provided on both long sides of the skin body 100 of the skin body 100. The limiting plates 200 are attached to the surface of the skin body. Through holes opposite to the fixed holes are provided on the limiting plates 200. During installation, the limiting plates 200 are attached to the surface of the skin body 100, and the fixed bolts 300 pass through the fixed holes and the through holes to be connected to the equipment installation position, preventing the installation from shifting and improving the fixing firmness.

[0023] As Figure 1 and Figure 2As shown in the figure, in this embodiment during installation, the skin body 100 includes at least two layers, and heat insulation cotton 400 is provided between adjacent skin bodies 100. The double-layer structure is adopted to improve the structural strength of the skin, and the heat insulation function is achieved through the structure of the heat insulation cotton 400. In production applications, the stainless steel mesh layer 120 is a 304 stainless steel wire mesh structure. A wire mesh is provided on the inner wall of the skin, significantly improving the rigidity and strength of the skin structure, and thus significantly improving the pressure resistance performance of the present invention.

[0024] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. An integral vulcanized non-metal expansion joint structure, characterized in that; It comprises a skin body (100), wherein the skin body (100) is provided with fixing holes arranged at intervals on both sides along the length; The skin body (100) comprises two inner fluororubber layers (110) arranged in a laminated manner, and a stainless steel mesh layer (120) is provided between the two inner fluororubber layers (110); the outer sides of the two inner fluororubber layers (110) facing away from each other are also compounded with outer fluororubber layers (130), and an aramid cloth layer (140) is provided between the outer fluororubber layer (130) and the inner fluororubber layer (110); the edges of both sides in the long direction of the skin body (100) are provided with limiting ridges (150) arranged along the long direction of the skin body (100), and the fixing holes are located on the inner sides of the limiting ridges (150); the edges of both sides in the long direction of the skin body (100) are provided with limiting plates (200) arranged along the long direction of the skin body (100), the limiting plates (200) are in contact with the surface of the skin body (100), and the limiting plates (200) are provided with through holes that are directly opposite to the fixing holes.

2. The integral vulcanized non-metal expansion joint structure according to claim 1, characterized in that: The outer surface of the skin body (100) is sprayed with a fireproof paint layer.

3. The integral vulcanized non-metal expansion joint structure according to claim 1, characterized in that: The skin body (100) is subjected to overall vulcanization treatment.

4. The integral vulcanized non-metal expansion joint structure according to claim 1, characterized in that: The stainless steel mesh layer (120) is a 304 stainless steel wire mesh structure.

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