Heat-insulation and corrosion-resistant composite steel pipe

Abstract

The utility model relates to the field of composite steel pipes, and discloses a heat-insulation corrosion-resistant composite steel pipe which comprises a composite steel pipe body, a heat preservation assembly is arranged in the composite steel pipe body, a heat insulation assembly is fixedly connected to the surface of the composite steel pipe body, and a corrosion-resistant assembly is fixedly connected to the outer side of the heat insulation assembly. According to the utility model, through the arrangement of the heat preservation assembly, heat preservation can be carried out on the interior of the pipeline, through the rock wool pipe shell heat preservation layer, the effects of heat insulation, pipeline frost crack prevention and the like can be achieved, through the arrangement of the aluminum silicate pipe shell layer, high-temperature steam and chemical high-temperature steam can be resisted, and the excellent upper limit is improved; the composite steel pipe has excellent cold resistance, heat insulation can be conducted on the outer side of the pipeline through the heat insulation assembly, the phenomenon of frostbite of the pipeline can be avoided, the effect that the composite steel pipe has the excellent corrosion resistance is achieved, and meanwhile the composite steel pipe has the excellent heat insulation effect.

Description

Technical Field

[0001] The utility model relates to the field of composite steel pipes, in particular to a heat-insulating and corrosion-resistant composite steel pipe. Background Art

[0002] Steel pipe is a kind of steel with a hollow section, whose length is much larger than its diameter or circumference. According to the cross-sectional shape, it can be divided into round, square, rectangular and special-shaped steel pipes; according to the material, it can be divided into carbon structural steel pipe, alloy structural steel pipe, seamless steel pipe and welded steel pipe;

[0003] Composite steel pipes currently in use are usually made of composite metals. However, there are certain deficiencies in the use of composite steel pipes. During long-term use, they are prone to rust. Rust can lead to insufficient strength of the steel pipe, which poses certain risks. At the same time, the steel pipe does not have thermal insulation properties. During long-distance transportation, the liquid cools down, and the thermal insulation performance is poor, which reduces the safety of the steel pipe.

[0004] At present, a heat-insulating and corrosion-resistant composite steel pipe is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a heat-insulating and corrosion-resistant composite steel pipe, which aims to improve certain deficiencies in the use of the current composite steel pipe in the prior art. After long-term use, it is easy to cause rust. The rust will cause the strength of the steel pipe to be insufficient, and there is a certain danger. At the same time, the steel pipe does not have the performance of thermal insulation. During long-distance transportation, there is a phenomenon of liquid cooling, and the thermal insulation performance is poor.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A heat-insulating and corrosion-resistant composite steel pipe comprises a composite steel pipe, wherein a heat-insulating component is arranged inside the composite steel pipe, a heat-insulating component is fixedly connected to the surface of the composite steel pipe, a corrosion-resistant component is fixedly connected to the outside of the heat-insulating component, and a wear-resistant component is arranged on the outside of the corrosion-resistant component.

[0008] As a further description of the above technical solution:

[0009] The insulation component includes a rock wool tube shell insulation layer, which is fixedly connected to the inside of the composite steel pipe, and the inside of the rock wool tube shell insulation layer is fixedly connected to an aluminum silicate tube shell layer, and the inside of the aluminum silicate tube shell layer is fixedly connected to a polyurethane insulation pipe.

[0010] As a further description of the above technical solution:

[0011] The heat insulation component comprises a glass wool heat insulation tube shell, the glass wool heat insulation tube shell is fixedly connected to the surface of the composite steel tube, and the surface of the glass wool heat insulation tube shell is fixedly connected to a silicate tube heat insulation shell.

[0012] As a further description of the above technical solution:

[0013] The corrosion-resistant component comprises perchloroethylene anticorrosion coating, the perchloroethylene anticorrosion coating is fixedly connected to the surface of the silicate pipe insulation shell, and the surface of the perchloroethylene anticorrosion coating is fixedly connected to polyurethane anticorrosion coating.

[0014] As a further description of the above technical solution:

[0015] The wear-resistant component includes an asphalt anti-corrosion and wear-resistant coating, the surface of the asphalt anti-corrosion and wear-resistant coating is fixedly connected to the surface of the polyurethane anti-corrosion coating, and the surface of the asphalt anti-corrosion and wear-resistant coating is fixedly connected to the epoxy anti-corrosion and wear-resistant coating.

[0016] As a further description of the above technical solution:

[0017] The outer side of the rock wool tube shell insulation layer is fixedly connected to the inner side of the composite steel pipe by glue, and the rock wool tube shell insulation layer is used in conjunction with the composite steel pipe.

[0018] As a further description of the above technical solution:

[0019] The outer side of the aluminum silicate tube shell layer is fixedly connected to the inner side of the rock wool tube shell insulation layer by glue, and the aluminum silicate tube shell layer is used in conjunction with the rock wool tube shell insulation layer.

[0020] As a further description of the above technical solution:

[0021] The outer side of the polyurethane thermal insulation pipe is fixedly connected to the inner side of the aluminum silicate tube shell layer by inorganic glue, and the polyurethane thermal insulation pipe is used in combination with the aluminum silicate tube shell layer.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the interior of the pipeline can be insulated by the setting of the insulation component, and the rock wool tube shell insulation layer can achieve the effects of heat insulation and preventing the pipeline from freezing and cracking. The aluminum silicate tube shell layer can resist high-temperature steam and chemical high-temperature steam, and the upper limit of excellence is improved. The polyurethane insulation pipe has excellent cold resistance. The insulation component can be used to insulate the outside of the pipeline to avoid frostbite. The corrosion-resistant component and the perchloroethylene anti-corrosion coating have excellent weather resistance and high safety. At the same time, the polyurethane anti-corrosion coating has excellent acid resistance, alkali resistance, oil resistance, water resistance, wear resistance and other properties. The wear-resistant component can protect the surface of the composite steel pipe, effectively improve the safety of the composite steel pipe, and realize that the composite steel pipe has excellent corrosion resistance and excellent insulation effect.

[0024] 2. In the utility model, the interior of the pipeline can be insulated by the setting of the insulation component. The rock wool tube shell insulation layer can achieve the effects of heat insulation and preventing the pipeline from freezing and cracking. The aluminum silicate tube shell layer can resist high-temperature steam and chemical high-temperature steam, and the upper limit of the excellent performance is improved. The polyurethane insulation pipe has excellent cold resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a heat-insulating and corrosion-resistant composite steel pipe proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a heat-insulating and corrosion-resistant composite steel pipe from a top view proposed by the utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. Composite steel pipe; 2. Rock wool pipe shell insulation layer; 3. Aluminum silicate pipe shell layer; 4. Polyurethane insulation pipe; 5. Glass wool insulation pipe shell; 6. Silicate pipe insulation shell; 7. Perchlorethylene anti-corrosion coating; 8. Polyurethane anti-corrosion coating; 9. Asphalt anti-corrosion and wear-resistant coating; 10. Epoxy anti-corrosion and wear-resistant coating. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1-3 The utility model provides an embodiment: a heat-insulating and corrosion-resistant composite steel pipe, comprising a composite steel pipe 1, a heat-insulating component is arranged inside the composite steel pipe 1, a heat-insulating component is fixedly connected to the surface of the composite steel pipe 1, a corrosion-resistant component is fixedly connected to the outside of the heat-insulating component, and a wear-resistant component is arranged on the outside of the corrosion-resistant component; through the arrangement of the heat-insulating component, the inside of the pipeline can be insulated, and through the rock wool pipe shell insulation layer 2, the effects of heat insulation and preventing the pipeline from freezing and cracking can be achieved.

[0032] Reference Figure 1-3 The insulation component includes a rock wool tube shell insulation layer 2, which is fixedly connected to the inside of the composite steel pipe 1, and the inside of the rock wool tube shell insulation layer 2 is fixedly connected with an aluminum silicate tube shell layer 3, and the inside of the aluminum silicate tube shell layer 3 is fixedly connected with a polyurethane insulation pipe 4. Through the setting of the aluminum silicate tube shell layer 3, it can withstand high-temperature steam and chemical high-temperature steam. Through the polyurethane insulation pipe 4, it has excellent cold resistance. The insulation component includes a glass wool insulation tube shell 5, and the glass wool insulation tube shell 5 is fixedly connected to the surface of the composite steel pipe 1. The surface of the glass wool insulation tube shell 5 is fixedly connected with a silicate tube insulation shell 6. Through the setting of the insulation component, the outside of the pipeline can be insulated to avoid frostbite of the pipeline.

[0033] Reference Figure 1-3 The corrosion-resistant component includes perchloroethylene anti-corrosion coating 7, which is fixedly connected to the surface of silicate pipe insulation shell 6, and the surface of perchloroethylene anti-corrosion coating 7 is fixedly connected with polyurethane anti-corrosion coating 8. Through the setting of the corrosion-resistant component, the perchloroethylene anti-corrosion coating 7 has excellent weather resistance and high safety. At the same time, the polyurethane anti-corrosion coating 8 has excellent acid resistance, alkali resistance, oil resistance, water resistance, wear resistance and other properties. The wear-resistant component includes asphalt anti-corrosion and wear-resistant coating 9, and the surface of asphalt anti-corrosion and wear-resistant coating 9 is fixedly connected to the surface of polyurethane anti-corrosion coating 8. The surface of asphalt anti-corrosion and wear-resistant coating 9 is fixedly connected with epoxy anti-corrosion and wear-resistant The coating 10, through the setting of wear-resistant components, can protect the surface of the composite steel pipe 1, effectively improve the safety of the composite steel pipe 1, so as to achieve the effect of heat insulation and corrosion resistance, the outer side of the rock wool tube shell insulation layer 2 is fixedly connected to the inside of the composite steel pipe 1 by glue, the rock wool tube shell insulation layer 2 is used in conjunction with the composite steel pipe 1, the outer side of the aluminum silicate tube shell layer 3 is fixedly connected to the inside of the rock wool tube shell insulation layer 2 by glue, the aluminum silicate tube shell layer 3 is used in conjunction with the rock wool tube shell insulation layer 2, the outer side of the polyurethane insulation pipe 4 is fixedly connected to the inside of the aluminum silicate tube shell layer 3 by inorganic glue, the polyurethane insulation pipe 4 is used in conjunction with the aluminum silicate tube shell layer 3.

[0034] Working principle: Through the setting of the insulation component, the inside of the pipeline can be insulated, and through the rock wool pipe shell insulation layer 2, the effects of heat insulation and preventing the pipeline from freezing and cracking can be achieved. Through the setting of the aluminum silicate pipe shell layer 3, it can withstand high-temperature steam and chemical high-temperature steam, and the excellent upper limit is improved. Through the polyurethane insulation pipe 4, it has excellent cold resistance. Through the setting of the insulation component, the outside of the pipeline can be insulated to avoid frostbite of the pipeline. Through the setting of the corrosion-resistant component, through the perchlorethylene anti-corrosion coating 7, it has excellent weather resistance and high safety. At the same time, through the polyurethane anti-corrosion coating 8, it has excellent acid resistance, alkali resistance, oil resistance, water resistance, wear resistance and other properties. Through the setting of the wear-resistant component, the surface of the composite steel pipe 1 can be protected, and the safety of the composite steel pipe 1 is effectively improved, thereby achieving the effect of heat insulation and corrosion resistance.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat-insulating and corrosion-resistant composite steel pipe, comprising a composite steel pipe (1), characterized in that: The composite steel pipe (1) is provided with a heat-insulating component inside, the surface of the composite steel pipe (1) is fixedly connected with a heat-insulating component, the outer side of the heat-insulating component is fixedly connected with a corrosion-resistant component, and the outer side of the corrosion-resistant component is provided with a wear-resistant component.

2. The heat-insulating and corrosion-resistant composite steel pipe according to claim 1, characterized in that: The thermal insulation component comprises a rock wool tube shell thermal insulation layer (2), the rock wool tube shell thermal insulation layer (2) is fixedly connected to the inside of the composite steel tube (1), the inside of the rock wool tube shell thermal insulation layer (2) is fixedly connected to an aluminum silicate tube shell layer (3), and the inside of the aluminum silicate tube shell layer (3) is fixedly connected to a polyurethane thermal insulation pipe (4).

3. The heat-insulating and corrosion-resistant composite steel pipe according to claim 1, characterized in that: The heat insulation component comprises a glass wool heat insulation tube shell (5), wherein the glass wool heat insulation tube shell (5) is fixedly connected to the surface of the composite steel tube (1), and a silicate tube heat insulation shell (6) is fixedly connected to the surface of the glass wool heat insulation tube shell (5).

4. The heat-insulating and corrosion-resistant composite steel pipe according to claim 3, characterized in that: The corrosion-resistant component comprises a perchloroethylene anticorrosion coating (7), wherein the perchloroethylene anticorrosion coating (7) is fixedly connected to the surface of a silicate pipe insulation shell (6), and a polyurethane anticorrosion coating (8) is fixedly connected to the surface of the perchloroethylene anticorrosion coating (7).

5. The heat-insulating and corrosion-resistant composite steel pipe according to claim 4, characterized in that: The wear-resistant component comprises an asphalt anti-corrosion and wear-resistant coating (9), the surface of which is fixedly connected to the surface of a polyurethane anti-corrosion coating (8), and the surface of which is fixedly connected to an epoxy anti-corrosion and wear-resistant coating (10).

6. The heat-insulating and corrosion-resistant composite steel pipe according to claim 2, characterized in that: The outer side of the rock wool tube shell insulation layer (2) is fixedly connected to the inside of the composite steel pipe (1) by glue, and the rock wool tube shell insulation layer (2) is used in conjunction with the composite steel pipe (1).

7. The heat-insulating and corrosion-resistant composite steel pipe according to claim 2, characterized in that: The outer side of the aluminum silicate tube shell layer (3) is fixedly connected to the inside of the rock wool tube shell thermal insulation layer (2) by glue, and the aluminum silicate tube shell layer (3) is used in conjunction with the rock wool tube shell thermal insulation layer (2).

8. The heat-insulating and corrosion-resistant composite steel pipe according to claim 2, characterized in that: The outer side of the polyurethane thermal insulation pipe (4) is fixedly connected to the inside of the aluminum silicate tube shell layer (3) via inorganic glue, and the polyurethane thermal insulation pipe (4) is used in conjunction with the aluminum silicate tube shell layer (3).

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