CN211821109U - Stainless steel composite pipe - Google Patents

Abstract

The utility model discloses a stainless steel composite pipe, including compound tubular product body, the surface of compound tubular product body is provided with the inoxidizing coating, the inoxidizing coating includes waterproof layer, corrosion-resistant layer and insulating layer, the bottom of waterproof layer is provided with the corrosion-resistant layer, the bottom on corrosion-resistant layer is provided with the insulating layer. The utility model discloses a design insulating layer, the material that coefficient of heat conductivity is low can completely cut off the heat toward the inside transmission of object, it has the clearance to prevent through the design insulating layer that chromium oxide film and compound tubular product body are compound not in place, form the potential difference between two kinds of metals, and the galvanic corrosion of production, through the design anti oxidation coating, this film prevents the metal to continue the oxidation, so the stainless steel has very strong corrosion resisting property, can not only bear the corruption of water and air, and can bear the corruption of weak acid weak base, thereby improve thermal-insulated effect, the problem that current stainless steel tubular product thermal-insulated effect is poor has been solved.

Description

Stainless steel composite pipe

Technical Field

The utility model relates to a stainless steel technical field specifically is a stainless steel composite pipe.

Background

Stainless steel refers to steel which resists corrosion of weak corrosion media such as air, steam and water and chemical corrosion media such as acid, alkali and salt, and is also called stainless acid-resistant steel, in practical application, the steel which resists corrosion of the weak corrosion media is often called stainless steel, the steel which resists corrosion of the chemical media is called acid-resistant steel, the steel does not necessarily resist corrosion of the chemical media due to the difference of chemical components of the steel and the acid-resistant steel, the steel and the acid-resistant steel generally have stainless property, the corrosion resistance of the stainless steel depends on alloy elements contained in the steel, the existing stainless steel composite pipe has poor heat insulation performance, and the heat is easily accumulated on the surface of the composite pipe under high temperature environment to cause the line in the inner cavity of the composite pipe to be ignited, thereby affecting the safety performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stainless steel composite pipe possesses thermal-insulated effectual advantage, has solved the poor problem of current stainless steel tubular product thermal-insulated effect.

In order to achieve the above object, the utility model provides a following technical scheme: the stainless steel composite pipe comprises a composite pipe body, wherein a protective layer is arranged on the surface of the composite pipe body and comprises a waterproof layer, an anti-corrosion layer and a thermal insulation layer, the anti-corrosion layer is arranged at the bottom of the waterproof layer, the thermal insulation layer is arranged at the bottom of the anti-corrosion layer, an inner protective layer is arranged on the surface of an inner cavity of the composite pipe body and comprises an insulating layer and an anti-oxidation layer, and the anti-oxidation layer is arranged at the bottom of the insulating layer.

Preferably, the waterproof layer is a waterproof coating, and the corrosion-resistant layer is formed by foaming and closely compounding ethylene propylene diene monomer.

Preferably, the heat insulation layer is made of glass fiber materials, and the thickness of the heat insulation layer is zero four millimeters to zero five millimeters.

Preferably, the insulating layer is made of a nano polymer insulating material, and the oxidation preventing layer is a chromium oxide film.

Preferably, the insulating layer and the anti-oxidation layer are bonded through glue, and flame retardant powder is filled between the insulating layer and the anti-oxidation layer.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a design insulating layer, the material that coefficient of heat conductivity is low can completely cut off the heat toward the inside transmission of object, avoid the heat gathering easily under high temperature environment and lead to the circuit in compound inside pipe cavity to catch fire at the inner chamber of compound pipe, it has the clearance to prevent through the design insulating layer that chromium oxide film and compound tubular product body are compound not in place, form the potential difference between two kinds of metals, and the galvanic corrosion of production, through designing the anti oxidation coating, this film prevents the metal and continues the oxidation, so the stainless steel has very strong corrosion resistance, can not only bear the corruption of water and air, and can bear the corruption of weak acid base, thereby improve thermal-insulated effect, the problem that current stainless steel tubular product thermal-insulated effect is poor has been solved.

2. The utility model discloses a cooperation on waterproof layer and corrosion-resistant layer prevents the moisture corrosion insulating layer in the air, improves compound tubular product body life, through the glue bonding between design insulating layer and the anti oxidation coating, prevents that the protective layer from droing.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front sectional view of the protective layer structure of the present invention;

fig. 3 is a front sectional view of the inner protective layer structure of the present invention.

In the figure: 1. a composite pipe body; 2. a protective layer; 21. a waterproof layer; 22. a corrosion-resistant layer; 23. a thermal insulation layer; 3. an inner protective layer; 31. an insulating layer; 32. and an oxidation preventing layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a stainless steel composite pipe comprises a composite pipe body 1, a protective layer 2 is disposed on the surface of the composite pipe body 1, the protective layer 2 comprises a waterproof layer 21, an anti-corrosion layer 22 and a thermal insulation layer 23, the anti-corrosion layer 22 is disposed at the bottom of the waterproof layer 21, the waterproof layer 21 is made of waterproof paint, the anti-corrosion layer 22 is formed by foaming and closely compounding ethylene propylene diene monomer, the thermal insulation layer 23 is made of glass fiber, the thickness of the thermal insulation layer 23 is four or five millimeters, the thermal insulation layer 23 is prevented from being corroded by moisture in the air by the cooperation of the waterproof layer 21 and the anti-corrosion layer 22, the service life of the composite pipe body 1 is prolonged, the protective layer is prevented from falling off by the design of bonding between the insulating layer 31 and the anti-oxidation layer 32 through glue, the thermal insulation layer 23 is disposed at the bottom of, the inner protection layer 3 comprises an insulation layer 31 and an anti-oxidation layer 32, the insulation layer 31 is made of a nano polymer insulation material, the anti-oxidation layer 32 is a chromium oxide film, the bottom of the insulation layer 31 is provided with the anti-oxidation layer 32, the insulation layer 31 and the anti-oxidation layer 32 are bonded through glue, flame retardant powder is filled between the insulation layer 31 and the anti-oxidation layer 32, by designing the heat insulation layer 23, a material with a low heat conductivity coefficient can isolate the heat from being transferred to the inside of an object, the phenomenon that the heat is easily accumulated in an inner cavity of the composite pipe under a high temperature environment to cause the line in the inner cavity of the composite pipe to be ignited is avoided, by designing the insulation layer 31, a gap is prevented between the chromium oxide film and the composite pipe body 1 which are not in place to be compounded, a potential difference is formed between two metals to cause galvanic corrosion, not only can bear the corrosion of water and air, but also can bear the corrosion of weak acid and weak base, thereby improving the heat insulation effect and solving the problem of poor heat insulation effect of the existing stainless steel pipe.

When in use, the heat insulation layer 23 is designed, so that the material with low heat conductivity coefficient can isolate the heat from being transferred to the inside of an object, thereby avoiding the phenomenon that the heat is easily accumulated in the inner cavity of the composite pipe under the high-temperature environment to cause the line in the inner cavity of the composite pipe to be on fire, by designing the insulating layer 31 to prevent a gap between the chromium oxide film and the composite pipe body 1 which are not completely compounded and a potential difference between two metals to generate galvanic corrosion, by designing the anti-oxidation layer 32, the film prevents the metal from being oxidized continuously, so the stainless steel has strong corrosion resistance, can bear the corrosion of water and air, and can bear the corrosion of weak acid and weak base, through the cooperation of waterproof layer 21 and corrosion-resistant layer 22, prevent that moisture in the air from corroding insulating layer 23, improve composite pipe body 1 life to improve thermal-insulated effect, solved the current stainless steel tubular product poor problem of thermal-insulated effect.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent. In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A stainless steel composite pipe comprises a composite pipe body (1), and is characterized in that: the composite pipe is characterized in that a protective layer (2) is arranged on the surface of the composite pipe body (1), the protective layer (2) comprises a waterproof layer (21), an anti-corrosion layer (22) and a heat insulation layer (23), the anti-corrosion layer (22) is arranged at the bottom of the waterproof layer (21), the heat insulation layer (23) is arranged at the bottom of the anti-corrosion layer (22), an inner protective layer (3) is arranged on the surface of an inner cavity of the composite pipe body (1), the inner protective layer (3) comprises an insulating layer (31) and an anti-oxidation layer (32), and the anti-oxidation layer (32) is arranged at the bottom of the insulating.

2. The stainless steel composite pipe according to claim 1, wherein: the waterproof layer (21) is made of waterproof paint, and the corrosion-resistant layer (22) is formed by foaming and closely compounding ethylene propylene diene monomer.

3. The stainless steel composite pipe according to claim 1, wherein: the heat insulation layer (23) is made of glass fiber materials, and the thickness of the heat insulation layer (23) is zero four millimeters to five millimeters.

4. The stainless steel composite pipe according to claim 1, wherein: the insulating layer (31) is made of a nano polymer insulating material, and the anti-oxidation layer (32) is a chromium oxide film.

5. The stainless steel composite pipe according to claim 1, wherein: the insulating layer (31) and the anti-oxidation layer (32) are bonded through glue, and flame retardant powder is filled between the insulating layer (31) and the anti-oxidation layer (32).

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