Corrosion-resistant rubber pipe with good heat preservation property
By setting up an electric heating wire layer, insulation mesh layer and glass fiber mesh layer in the rubber pipe, combined with the raised point/bar design, the shortcomings of the rubber pipe in corrosion resistance and insulation performance are solved, and effective insulation in chemical and other fields are achieved Improved durability.
Patent Information
- Application Number
- CN202420090105.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-15
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-15
AI Technical Summary
In modern chemical industry, medicine, petroleum and other fields, rubber pipes need to have bendable, corrosion-resistant and thermal insulation properties to ensure that the temperature of the conveying medium meets the needs. However, existing rubber pipes cannot effectively solve the problem of temperature failure when there is too much heat loss. .
The rubber tube design adopts a three-layer structure, including the inner rubber layer, the middle rubber layer and the outer rubber layer, the electric heating wire layer and the insulation mesh layer are set in the middle, the fiberglass mesh layer and the raised point/bar are set on the outer layer, and the electric heating wire layer is passed low Current provides thermal insulation, glass fiber mesh layer reduces heat transfer, and raised points/bars reduce contact area of the outer wall, improving insulation performance.
It realizes effective insulation in a corrosion-resistant environment, reduces heat loss, is suitable for use in an external corrosive environment, and improves the insulation performance and durability of the pipeline.
Smart Images
Figure CN222142268U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipes, in particular to a corrosion-resistant rubber pipe with good heat preservation performance. Background Art
[0002] In modern chemical industry, medicine, petroleum, food and other fields, a large number of rubber tubes are needed to transport various media. In some cases, rubber tubes are required to have the characteristics of bendability and corrosion resistance, as well as thermal insulation performance to ensure that the temperature of the transported material in the tube meets the requirements. If too much heat is lost during the transportation process in the pipeline, the medium temperature at the output end cannot meet the standard, which will have an adverse effect on product quality. Summary of the invention
[0003] The utility model aims to provide a corrosion-resistant rubber tube with good heat preservation performance, which is suitable for the use environment of flexible pipelines requiring heat preservation and corrosion resistance.
[0004] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:
[0005] A corrosion-resistant rubber tube with good heat preservation performance, comprising an inner rubber layer, a middle rubber layer and an outer rubber layer, wherein an electric heating wire layer and a heat preservation mesh layer are arranged between the inner rubber layer and the middle rubber layer, and the electric heating wire layer is located inside the heat preservation mesh layer;
[0006] A glass fiber mesh layer is arranged between the middle rubber layer and the outer rubber layer. The outer wall of the outer rubber layer is provided with raised points and raised strips. The raised strips are arranged in a spiral shape, and a raised point is arranged between every two adjacent raised strips.
[0007] Furthermore, the heating wire layer includes a heating wire wound around the outer wall of the inner rubber layer, the two ends of the heating wire are located at the same end of the inner rubber layer, and the rated current passing through the heating wire does not exceed 1 ampere.
[0008] Furthermore, the thermal insulation mesh layer is made of a high-molecular flexible material with a thermal conductivity value lower than that of rubber, and has lattice-like gaps evenly distributed in the middle.
[0009] Furthermore, the glass fiber mesh layer is formed by twisting and weaving glass fiber filaments.
[0010] Furthermore, the distances between any two adjacent raised strips are equal, the distances from the raised point to the raised strips on both sides are equal, and the thicknesses of the two raised from the outer wall of the outer rubber layer are equal.
[0011] Furthermore, the sum of the thickness of the middle rubber layer and the outer rubber layer is ≥ 2.5 times the thickness of the inner rubber layer.
[0012] The beneficial effects of the technical solution of the utility model are:
[0013] 1. The utility model is a corrosion-resistant rubber tube with good thermal insulation. It is arranged by stacking three rubber layers: inner, middle and outer. The sum of the thickness of the middle rubber layer and the outer rubber layer is ≥ 2.5 times the thickness of the inner rubber layer. The outer half layer of rubber accounts for a large proportion. It is suitable for use in an environment where the external corrosion is stronger than the material transported in the pipeline.
[0014] 2. The utility model is a corrosion-resistant rubber tube with good thermal insulation performance. A heating wire layer and a thermal insulation mesh layer are arranged between the inner rubber layer and the middle rubber layer, and a glass fiber mesh layer with low thermal conductivity is arranged between the middle rubber layer and the outer rubber layer. The contact area between the outer wall of the outer rubber layer and the external objects is small, which effectively improves the thermal insulation performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the description of the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;
[0018] Figure 3 for Figure 2 A magnified schematic diagram of center A.
[0019] In the figure: 1: inner rubber layer; 101: heating wire layer; 2: middle rubber layer; 201: thermal insulation mesh layer; 202: glass fiber mesh layer; 3: outer rubber layer; 301: raised point; 302: raised strip. DETAILED DESCRIPTION
[0020] The utility model is now further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model. The utility model is described in detail using structural schematic diagrams, etc. The schematic diagrams are only embodiments, and they should not limit the scope of protection of the utility model.
[0021] Please refer to Figures 1 to 3A corrosion-resistant rubber tube with good thermal insulation, comprising an inner rubber layer 1, a middle rubber layer 2 and an outer rubber layer 3. Since the double bond structure on the rubber molecular chain is active, it can react chemically with some chemical substances to form stable chemical bonds. It has good chemical stability and can withstand the erosion of many chemical substances. In addition, adding some additives to the rubber can further improve the corrosion resistance of the rubber; the sum of the thickness of the middle rubber layer 2 and the outer rubber layer 3 is ≥ 2.5 times the thickness of the inner rubber layer 1, and the outer half layer of rubber accounts for a large proportion, which is suitable for use in an environment where the external corrosiveness is stronger than that of the material transported in the pipeline.
[0022] In order to enhance the thermal insulation performance of the pipeline, a heating wire layer 101 and a thermal insulation mesh layer 201 are provided between the inner rubber layer 1 and the middle rubber layer 2. The heating wire layer 101 is located inside the thermal insulation mesh layer 201. The heating wire layer 101 includes a heating wire wound around the outer wall of the inner rubber layer 1, which utilizes the thermal effect of electric current to convert electrical energy into thermal energy. In order to improve its corrosion resistance, its surface is nickel-plated. Nickel plating is a commonly used anti-corrosion treatment method. Nickel solution is electrochemically deposited on the metal surface to form a uniform nickel layer. When the thickness of the nickel plating layer is above 0.01 mm, it can play a good anti-corrosion role. The positive and negative terminals of the heating wire are located at the same end of the inner rubber layer 1, and the wiring is convenient; because it only provides insulation function for the pipeline rather than heating function, the rated current passing through the heating wire does not exceed 1 ampere, so the heating wire does not need to be too thick, and the heating wire layer 101 can be made ultra-thin, minimizing the impact on the bending deformation of the soft rubber tube; the insulation mesh layer 201 is a polymer flexible material with a thermal conductivity value lower than that of rubber, which can effectively reduce the heat loss of the pipeline from the inside to the outside, and the grid-shaped sealed gaps are evenly distributed in the middle. The gaps in the mesh structure reduce the weight of the layer and facilitate the bending of the hose.
[0023] A glass fiber mesh layer 202 with low thermal conductivity is arranged between the middle rubber layer 2 and the outer rubber layer 3. The glass fiber mesh layer 202 is woven by twisting glass fiber filaments. The glass fiber mesh layer 202 is resistant to weathering and corrosion. In addition, it can strengthen the rubber layers on both sides thereof and improve the crack resistance. The outer wall of the outer rubber layer 3 is provided with raised points 301 and raised strips 302. The raised strips 302 are arranged in a spiral shape. A raised point 301 is arranged between every two adjacent raised strips 302. The distance between each adjacent raised strips 302 is equal, and the distance from the raised point 301 to the raised strips 302 on both sides is equal. The thickness of the two raised from the outer wall of the outer rubber layer 3 is equal. By setting the raised points 301 and the raised strips 302, the contact area between the outer wall 3 of the outer rubber layer and the external objects in contact can be effectively reduced, thereby reducing heat transfer and improving thermal insulation performance.
[0024] The above is only a preferred specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, implementing changes, modifications or additions should all fall within the protection scope of the present invention.
Claims
1. A corrosion-resistant rubber tube with good heat preservation, characterized in that: It comprises an inner rubber layer (1), a middle rubber layer (2) and an outer rubber layer (3), wherein an electric heating wire layer (101) and a heat-insulating mesh layer (201) are arranged between the inner rubber layer (1) and the middle rubber layer (2), and the electric heating wire layer (101) is located inside the heat-insulating mesh layer (201); A glass fiber mesh layer (202) is arranged between the middle rubber layer (2) and the outer rubber layer (3); the outer wall of the outer rubber layer (3) is provided with raised points (301) and raised strips (302); the raised strips (302) are arranged in a spiral shape, and a raised point (301) is arranged between every two adjacent raised strips (302).
2. A corrosion-resistant rubber tube with good heat preservation according to claim 1, characterized in that: The heating wire layer (101) comprises a heating wire wound around the outer wall of the inner rubber layer (1), the two ends of the heating wire being connected to electricity are located at the same end of the inner rubber layer (1), and the rated current passing through the heating wire does not exceed 1 ampere.
3. The corrosion-resistant rubber tube with good heat preservation performance according to claim 1, characterized in that: The thermal insulation mesh layer (201) is made of a high-molecular flexible material with a thermal conductivity value lower than that of rubber, and has lattice-shaped gaps evenly distributed in the middle.
4. The corrosion-resistant rubber tube with good heat preservation performance according to claim 1, characterized in that: The glass fiber mesh layer (202) is formed by twisting and weaving glass fiber filaments.
5. The corrosion-resistant rubber tube with good heat preservation performance according to claim 1, characterized in that: The distances between any two adjacent raised strips (302) are equal, the distances from the raised point (301) to the raised strips (302) on both sides thereof are equal, and the thicknesses of the two raised from the outer wall of the outer rubber layer (3) are equal.
6. The corrosion-resistant rubber tube with good heat preservation performance according to claim 1, characterized in that: The sum of the thicknesses of the middle rubber layer (2) and the outer rubber layer (3) is ≥ 2.5 times the thickness of the inner rubber layer (1).