Wear-resistant glass reinforced plastic pipe

Abstract

The utility model relates to the technical field of glass reinforced plastic pipes, and discloses a wear-resistant glass reinforced plastic pipe which comprises a base pipe, a wear-resistant and high-temperature-resistant lining layer is arranged on the inner side of the base pipe, and a glass fiber winding layer is wrapped on the outer side of the base pipe. The lining layer comprises a resin anti-seepage base layer combined with the base pipe and a wear-resistant and high-temperature-resistant layer arranged on the resin anti-seepage base layer. And the wear-resistant and high-temperature-resistant layer is a silicon carbide coating. And the wear-resistant and high-temperature-resistant layer is arranged in the pipeline, so that the wear of solid particles to the pipeline can be effectively reduced, the high-temperature resistance is improved, and the service life of the pipeline is greatly prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to glass steel pipe technical field, especially a kind of wear-resistant glass steel pipe. BACKGROUND

[0002] In the industry of electric power, metallurgy, coal, petroleum, chemical industry, building material, machinery, etc., it is necessary to use pipeline to transport a large amount of liquid medium, and there are many solid particles in these liquid media. The existence of these particles will cause the inner wall of the pipeline to wear very quickly. In a few years or even less than a year, the entire pipeline will be damaged due to the wear of the inner wall of the pipeline, which is not safe and not economical. At the same time, the high temperature of these liquids further accelerates the aging of the pipeline. SUMMARY

[0003] The utility model aims to provide a kind of wear-resistant glass steel pipe, by setting up wear-resistant high temperature layer in the pipeline, it can effectively reduce the wear of solid particles to pipeline, improve the high temperature resistance, greatly improve the service life of pipeline.

[0004] The above technical purpose of the utility model is realized by the following technical scheme:

[0005] A kind of wear-resistant glass steel pipe, including base pipe, the inner side of the base pipe is provided with wear-resistant high temperature inner lining layer, the outer side of base pipe is covered with glass fiber winding layer;

[0006] The inner lining layer includes a resin impermeable base layer combined with the base pipe and a wear-resistant high temperature layer disposed on the resin impermeable base layer.

[0007] The utility model is further provided as follows: the wear-resistant high temperature layer is a silicon carbide coating. Using a mixture of silicon carbide and vinyl resin as the coating can meet the two physical properties of wear resistance and resistance to temperatures around 100 degrees Celsius, and can be widely applied to the transportation of particulate fluid or solid powder particles at belt temperatures.

[0008] The utility model is further provided as follows: the wear-resistant high temperature layer is a tungsten carbide-cobalt coating. This coating combines the high hardness and wear resistance of tungsten carbide with the toughness of cobalt. Tungsten carbide has very high hardness and can effectively resist wear, and cobalt, as a binder phase, makes the coating have good toughness and is not easy to peel off when subjected to impact or large stress, so it can also be widely applied to the transportation of particulate fluid or solid powder particles at belt temperatures.

[0009] The utility model further sets up: the resin anti -infiltration base layer is phenolic aldehyde epoxy ethylene base resin coating. Phenolic aldehyde epoxy ethylene base resin, its high temperature resistance is more outstanding. Its thermal deformation temperature can reach 150 - 200 about ℃. This is because it combines the high temperature resistant characteristic of phenolic aldehyde resin and the good process of ethylene base resin. The phenolic aldehyde structure in phenolic aldehyde epoxy ethylene base resin molecule can form stable carbide under high temperature, prevents the further thermal degradation of resin.

[0010] The utility model further sets up: the thickness of the wear -resisting high temperature resistance layer is not less than 2mm.

[0011] The utility model further sets up: the base pipe is polyurethane concrete pipe. Polyurethane concrete not only has good compressive strength and acid and alkali resistance, but also has the effect of effectively reducing noise due to its certain elasticity, thereby reducing the noise generated by conveying particulate fluid or solid powder particles, and the mass of the polyurethane concrete pipe is small, which can effectively reduce the self weight of the entire glass steel pipe.

[0012] The utility model further sets up: a plurality of protrusions are formed on the outer wall of the base pipe; by arranging the plurality of protrusions, the bonding capacity between the base pipe and the glass fiber winding layer can be increased.

[0013] A plurality of grooves are formed on the inner wall of the base pipe, and the bonding capacity between the base pipe and the resin anti-infiltration base layer can be increased by arranging the plurality of grooves.

[0014] The utility model further sets up: the glass fiber winding layer is provided with a thickened layer at the positions of both ends of the pipe.

[0015] The glass fiber winding layer is adhered to the outer surface of the base pipe by winding yarn of glass fiber with resin.

[0016] The utility model has the following advantages:

[0017] Compared with the prior art, by arranging the wear-resistant high-temperature-resistant layer inside the pipe, the wear of the pipe caused by solid particles can be effectively reduced, the high-temperature-resistant ability can be improved, and the service life of the pipe can be greatly improved.

[0018] The wear-resistant high-temperature-resistant layer can be a silicon carbide coating or a tungsten-cobalt carbide coating, and different coatings can be selected according to requirements and working conditions to improve practicality.

[0019] The base pipe is a polyurethane concrete pipe, which can reduce the overall cost and weight of the pipe and also reduce noise. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure of the utility model embodiment is shown in the figure;

[0021] Figure 2 For Figure 1 Sectional view about A-A

[0022] Figure 3 For Figure 1 Partial enlarged view about B

[0023] Figure 4 For Figure 2 Partial enlarged view about C

[0024] Reference signs: 10, base pipe;

[0025] 20, inner lining layer; 201, resin impervious base layer; 202, wear-resistant and high-temperature-resistant layer;

[0026] 30, glass fiber winding layer; 301, thickened layer. DETAILED DESCRIPTION

[0027] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0028] The following reference Figures 1 to 4 The embodiments of the present application are described as follows: Embodiment

[0029] A wear-resistant glass steel pipe, comprising a base pipe 10, the inner side of the base pipe 10 is provided with a wear-resistant and high-temperature-resistant inner lining layer 20, the outer side of the base pipe 10 is covered with a glass fiber winding layer 30, and the glass fiber winding layer 30 is adhered to the outer surface of the base pipe 10 by resin winding through glass fiber winding yarn.

[0030] The inner lining layer 20 comprises a resin impervious base layer 201 combined with the base pipe 10 and a wear-resistant and high-temperature-resistant layer 202 with a thickness of not less than 2mm arranged on the resin impervious base layer 201. A plurality of protrusions 101 are formed on the outer wall of the base pipe 10; by arranging a plurality of protrusions, the combination ability between the base pipe and the glass fiber winding layer 30 can be increased.

[0031] A plurality of grooves 102 are formed on the inner wall of the base pipe 10, and the combination ability between the base pipe and the resin impervious base layer can be increased by arranging a plurality of grooves.

[0032] The wear-resistant and high-temperature-resistant layer 202 is a silicon carbide coating. Using a mixture of silicon carbide and vinyl resin as a coating can meet the two physical properties of wear resistance and resistance to about 100 degrees high temperature, and can be widely applied to the conveying of granular fluid or solid powder particles at a temperature.

[0033] The resin anti-seepage base layer 201 is a phenolic epoxy vinyl resin coating. The phenolic epoxy vinyl resin has more prominent high temperature resistance. Its thermal deformation temperature can reach about 150-200℃. This is because it combines the high temperature resistance of phenolic resin and the good processability of vinyl resin. The phenolic structure in the molecule of the phenolic epoxy vinyl resin can form stable carbide at high temperature, preventing further thermal degradation of the resin.

[0034] The base pipe 10 is a polyurethane concrete pipe. The polyurethane concrete not only has good compressive strength and acid and alkali resistance, but also has a certain elasticity, which can effectively reduce noise, thereby reducing the noise generated by conveying particulate fluid or solid powder particles. At the same time, the polyurethane concrete pipe has a smaller mass, which can effectively reduce the self-weight of the entire glass steel pipe.

[0035] The glass fiber winding layer 30 is provided with a thickened layer 301 at the positions of both ends of the pipe, which improves the strength of both ends of the pipe. Embodiment

[0036] The wear-resistant and high-temperature-resistant layer 202 of this embodiment is a tungsten carbide-cobalt coating, and other structures are the same as those of embodiment 1. This coating combines the high hardness and wear resistance of tungsten carbide and the toughness of cobalt. Tungsten carbide has very high hardness and can effectively resist wear, and cobalt as a binder phase makes the coating have good toughness and is not easy to peel off when impacted or under greater stress, so it can also be widely used in conveying belt temperature particulate fluid or solid powder particles.

[0037] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and the above-mentioned improvements and modifications should be regarded as the protection scope of the present application.

Claims

1. A wear resistant glass reinforced pipe comprising a base pipe (10) characterised in that: The inner side of the base pipe (10) is provided with a wear-resistant and high-temperature-resistant inner lining layer (20), and the outer side of the base pipe (10) is covered with a glass fiber winding layer (30). The inner lining layer (20) comprises a resin anti-seepage base layer (201) combined with the base pipe (10) and a wear-resistant and high-temperature-resistant layer (202) arranged on the resin anti-seepage base layer (201).

2. A wear resistant glass reinforced pipe as claimed in claim 1, wherein: The wear-resistant and high-temperature-resistant layer (202) is a silicon carbide coating.

3. A wear resistant glass reinforced pipe as claimed in claim 1, wherein: The wear-resistant and high-temperature-resistant layer (202) is a tungsten-cobalt coating.

4. A wear resistant glass reinforced pipe according to any one of claims 1 to 3, characterized in that: The resin anti-seepage base layer (201) is a phenolic epoxy vinyl resin coating.

5. A wear resistant glass reinforced pipe according to any one of claims 1 to 3, characterised in that: The thickness of the wear-resistant and high-temperature-resistant layer (202) is not less than 2mm.

6. A wear resistant glass reinforced pipe as claimed in claim 1, wherein: The base pipe (10) is a polyurethane concrete pipe.

7. A wear resistant glass reinforced pipe as claimed in claim 1, wherein: The outer wall of the base pipe (10) is formed with a plurality of protrusions (101). The inner wall of the base pipe (10) is formed with a plurality of grooves (102).

8. A wear resistant glass reinforced pipe as claimed in claim 1, wherein: The glass fiber winding layer (30) is provided with a thickened layer (301) at the positions of both ends of the pipe.

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