CN217843003U

CN217843003U - Novel anticorrosive polyurethane heat preservation steel pipe

Info

Publication number: CN217843003U
Application number: CN202221135983.6U
Authority: CN
Inventors: 曾广生
Original assignee: Taishan Xianguang Building Materials Co ltd
Current assignee: Taishan Xianguang Building Materials Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-11-18
Anticipated expiration: 2032-05-12

Abstract

The application provides there is novel anticorrosive polyurethane insulation steel pipe, include: the steel pipe main part, steel pipe main part outer wall cover is equipped with first elastic layer, first elastic layer outer wall cover is equipped with the heat preservation, heat preservation outer wall cover is equipped with outer insulating layer, outer insulating layer outer wall cover is equipped with the outer pillar, outer pillar outer wall parcel has anticorrosive coating, protects the inside and outside of heat preservation mechanism through the first elastic layer and the second elastic layer that set up in the device, and the pressure that heat preservation mechanism received when making steel pipe main part inflation or heat preservation steel pipe receive external extrusion reduces, protects heat preservation mechanism, guarantees heat preservation steel pipe's result of use and life-span.

Description

Novel anticorrosive polyurethane heat preservation steel pipe

Technical Field

The application specifically discloses insulation steel pipe technical field, concretely relates to novel anticorrosive polyurethane insulation steel pipe.

Background

The heat preservation steel pipe is a steel pipe subjected to heat preservation treatment, and is widely applied to the fields of liquid and gas conveying pipe networks, chemical pipelines, heat preservation engineering and the like.

In the use process of the existing heat-insulating steel pipe, a polyurethane heat-insulating layer is arranged on the steel pipe to improve the heat-insulating property of the heat-insulating steel pipe;

however, the steel pipe can be heated to expand in a high-temperature environment, the heat-insulating layer and the steel pipe are tightly attached, the expansion of the steel pipe can damage the heat-insulating layer, and therefore a novel anti-corrosion polyurethane heat-insulating steel pipe is provided.

Disclosure of Invention

In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a novel corrosion-resistant polyurethane thermal insulation steel pipe with protection function, comprising: a steel pipe body;

the outer wall of the steel pipe main body is sleeved with a first elastic layer;

the outer wall of the first elastic layer is sleeved with a heat insulation layer, the outer wall of the heat insulation layer is sleeved with an outer heat insulation layer, and the outer wall of the outer heat insulation layer is sleeved with an outer protective pipe;

the outer wall of the outer protecting pipe is wrapped with an anti-corrosion coating.

According to the technical scheme provided by the embodiment of the application, the annular groove is formed in the first elastic layer, and the inner cavity of the annular groove is filled with air.

According to the technical scheme provided by the embodiment of the application, the outer wall of the outer heat insulation layer is sleeved with the second elastic layer positioned inside the outer protective pipe, and the annular gas storage groove is formed in the second elastic layer.

According to the technical scheme provided by the embodiment of the application, the inner heat insulation layer is arranged on the inner wall of the steel pipe main body.

According to the technical scheme provided by the embodiment of the application, the inner heat insulation layer is provided with an inner anti-corrosion layer on the inner wall.

Compared with the prior art, the beneficial effect of this application is: the device is characterized in that the first elastic layer and the second elastic layer are arranged to protect the inner side and the outer side of the heat insulation layer mechanism, so that the pressure of the heat insulation layer mechanism is reduced when the steel pipe main body expands or the heat insulation steel pipe is extruded from the outside, the heat insulation layer mechanism is protected, and the using effect and the service life of the heat insulation steel pipe are guaranteed.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural diagram of the present application;

FIG. 2 is a schematic view of a first elastomeric layer construction of the present application.

In the figure: 1. a steel pipe body; 2. an inner insulating layer; 3. an inner corrosion resistant layer; 4. a first elastic layer; 41. an annular groove; 5. a heat-insulating layer; 6. an outer insulating layer; 7. a second elastic layer; 8. an outer protecting pipe; 9. and (4) an anticorrosive coating.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As mentioned in the background art, the application discloses a novel anti-corrosion polyurethane heat-preservation steel pipe with a protection function, aiming at the problems that the steel pipe in the prior art can expand under the high-temperature environment and the heat-preservation layer is tightly attached to the steel pipe, and the heat-preservation layer can be damaged by the expansion of the steel pipe,

example 1:

referring to fig. 1 and 2, the method includes: the heat insulation protection device comprises a steel pipe main body 1, wherein a first elastic layer 4 made of rubber is sleeved on the outer wall of the steel pipe main body 1, the first elastic layer 4 can deform, an annular groove 41 filled with air is formed in the first elastic layer 4, the deformation range of the first elastic layer 4 is increased, when the steel pipe main body 1 expands due to overhigh temperature, the first elastic layer 4 can be extruded, the first elastic layer 4 deforms, and heat insulation layer mechanisms such as a heat insulation layer 5 and an outer heat insulation layer 6 are protected through the deformation of the first elastic layer 4;

referring to fig. 1, in order to ensure the heat insulation capability of the heat insulation steel pipe, a heat insulation layer 5 made of polyurethane is sleeved on the outer wall of the first elastic layer 4, an outer heat insulation layer 6 (made of ceramic) is sleeved on the outer wall of the heat insulation layer 5, an outer protective pipe 8 (a PE pipe) is sleeved on the outer wall of the outer heat insulation layer 6, and an anti-corrosion coating 9 made of epoxy powder is coated on the outer wall of the outer protective pipe 8, so that the anti-corrosion capability of the heat insulation steel pipe is improved;

referring to fig. 1, in order to protect the heat insulation mechanism from the outside, a second elastic layer 7 made of rubber is sleeved on the outer wall of the outer heat insulation layer 6, an annular gas storage groove is formed in the second elastic layer 7, the outer wall of the second elastic layer 7 is connected with the inner wall of the outer protection pipe 8, the second elastic layer 7 and the first elastic layer 4 are consistent in function and material, and damage caused by the structure of the heat insulation layer machine capable of reducing the external pressure can be reduced.

Example 2:

referring to fig. 1, on the basis of embodiment 1, an inner heat insulation layer 2 made of ceramic material is arranged on the inner wall of a steel pipe main body 1, and an inner corrosion protection layer 3 made of epoxy powder is coated on the inner wall of the inner heat insulation layer 2, so that the probability that the steel pipe main body 1 is influenced by the temperature of liquid conveyed inside is reduced, and the steel pipe main body is protected from the inside of a heat insulation steel pipe;

compared with the embodiment 1, the inner heat insulation layer 2 and the inner anticorrosive layer 3 are added, the heat insulation steel pipe is protected from the inside, and the service performance of the heat insulation steel pipe is improved.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention according to the present application is not limited to the specific combination of the above-mentioned features, but also covers other embodiments where any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. Novel anticorrosive polyurethane heat preservation steel pipe, its characterized in that: the method comprises the following steps: a steel pipe body (1);

the outer wall of the steel pipe main body (1) is sleeved with a first elastic layer (4);

the outer wall of the first elastic layer (4) is sleeved with a heat insulation layer (5), the outer wall of the heat insulation layer (5) is sleeved with an outer heat insulation layer (6), and the outer wall of the outer heat insulation layer (6) is sleeved with an outer protective pipe (8);

the outer wall of the outer protecting pipe (8) is wrapped with an anticorrosive coating (9).

2. The novel corrosion-resistant polyurethane heat-insulating steel pipe as claimed in claim 1, wherein:

an annular groove (41) is formed in the first elastic layer (4), and the inner cavity of the annular groove (41) is filled with air.

3. The novel corrosion-resistant polyurethane heat-insulating steel pipe as claimed in claim 1, wherein:

the outer wall of the outer heat insulation layer (6) is sleeved with a second elastic layer (7) located inside the outer protecting pipe (8), and an annular gas storage groove is formed inside the second elastic layer (7).

4. The novel corrosion-resistant polyurethane heat-insulating steel pipe as claimed in claim 1, wherein:

an inner heat insulation layer (2) is arranged on the inner wall of the steel pipe main body (1).

5. The novel corrosion-resistant polyurethane heat-insulating steel pipe as claimed in claim 4, wherein:

the inner wall of the inner heat insulation layer (2) is provided with an inner anticorrosive layer (3).