CN217177734U

CN217177734U - Rigid polyurethane spraying polyethylene winding prefabricated direct-buried heat insulation pipe

Info

Publication number: CN217177734U
Application number: CN202221116388.8U
Authority: CN
Inventors: 孙强
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-08-12
Anticipated expiration: 2032-05-11

Abstract

The utility model discloses a rigid polyurethane spraying polyethylene winding prefabricated direct-buried heat preservation pipe, which belongs to the technical field of direct-buried heat preservation pipes, and the technical proposal key points of the utility model comprise an inner pipe body, an outer pipe body which is concentric with the inner pipe body and is not contacted with the inner pipe body is arranged on the outer side of the inner pipe body, polyurethane foam is arranged between the inner pipe body and the outer pipe body, the inner wall of the polyurethane foam is connected with the outer wall of the inner pipe body in a laminating way, the outer wall of the polyurethane foam is connected with a polyurethane coating in a laminating way, the heat preservation pipe is composed of a double-layer structure of the inner pipe body and the outer pipe body, the inner pipe body and the outer pipe body are glass steel pipes, the weight is light, the strength is high, simultaneously, the corrosion resistance, the wear resistance and the ageing resistance are excellent, the integral strength of the heat preservation pipe is effectively improved, the service life is prolonged, the problems that the self heat preservation performance of the existing direct-buried heat preservation pipe is not good and the integral strength of the pipeline is not enough are solved, the pipeline is easy to damage due to external reasons, and meanwhile, the outer layer of the pipeline body is poor in corrosion resistance and easy to rust, so that the service life of the pipeline is shortened.

Description

Rigid polyurethane spraying polyethylene winding prefabricated direct-buried heat insulation pipe

Technical Field

The utility model relates to a direct-burried insulating tube technical field, in particular to prefabricated direct-burried insulating tube of rigid polyurethane spraying polyethylene winding.

Background

The heat preservation pipeline is widely used for liquid and gas conveying pipe networks, chemical pipeline heat preservation engineering petroleum, chemical engineering, central heating and heating networks, central air conditioning ventilation pipelines, municipal engineering and the like. The high-temperature prefabricated direct-buried heat-insulating pipe is a direct-buried prefabricated heat-insulating pipe which has good heat-insulating property, safety, reliability and low engineering cost. The problems of heat preservation, sliding lubrication and water prevention of the exposed pipe end of the prefabricated direct-buried heat preservation pipe for high-temperature heat transmission at 130-600 ℃ in urban centralized heat supply are effectively solved. The high-temperature prefabricated direct-buried heat-insulating pipe not only has advanced technology and practical performance which are difficult to compare with the traditional trench and overhead laying pipeline, but also has remarkable social benefit and economic benefit, and is a powerful measure for heat supply and energy conservation. The high-temperature prefabricated direct-buried heat insulation pipe adopts a direct-buried heat supply pipeline technology, and marks that the development of the heat supply pipeline technology has entered a new starting point.

The existing direct-buried heat-insulating pipe is poor in heat-insulating property, the overall strength of the pipeline is insufficient, the pipe is easy to damage due to external reasons, meanwhile, the outer layer of the pipe body is poor in corrosion resistance and easy to rust, and the service life of the pipeline is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to above problem, provide a prefabricated direct-burried insulating tube of rigid polyurethane spraying polyethylene winding, it is good to have thermal insulation performance, and corrosion resistance is strong, and structural strength is high, long service life's characteristics.

The utility model discloses a realize like this, a prefabricated direct-burried insulating tube of rigid polyurethane spraying polyethylene winding, including interior body, the outside of interior body is provided with interior body concentric and contactless outer body, be provided with polyurethane foam between interior body and the outer body, polyurethane foam's inner wall is connected with the outer wall laminating of interior body, polyurethane foam's outer wall laminating is connected with the polyurethane coating, polyurethane coating's outer wall round-trip has polyethylene sheet, polyethylene sheet's outer wall laminating is connected with the heat preservation, the outer wall of heat preservation is connected with the inner wall laminating of outer body.

In order to improve insulating tube bulk strength, as the utility model discloses a prefabricated direct-burried insulating tube of rigid polyurethane spraying polyethylene winding is preferred, two sets of brace rod of fixedly connected with between interior body and the outer body, it is a set of the quantity of brace rod is six, and is two sets of the brace rod is located the both ends between interior body and the outer body respectively.

In order to ensure the intensity of the insulating pipe, the utility model discloses a prefabricated direct-burried insulating pipe of rigid polyurethane spraying polyethylene winding is preferred, interior body and outer body are glass steel pipe.

In order to improve insulating tube thermal insulation performance, as the utility model discloses a prefabricated direct-burried insulating tube of rigid polyurethane spraying polyethylene winding is preferred, the heat preservation is the rubber and plastic heat preservation cotton.

In order to improve the outer corrosion resistance of insulating tube, conduct the utility model discloses a prefabricated direct-burried insulating tube of rigid polyurethane spraying polyethylene winding is preferred, the outer wall coating of outer body has corrosion-resistant coating.

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

the heat preservation pipe is composed of a double-layer structure of an inner pipe body and an outer pipe body, the inner pipe body and the outer pipe body are glass steel pipes, the weight is light, the strength is high, meanwhile, the corrosion resistance, the wear resistance and the ageing resistance are excellent, the integral strength of the heat preservation pipe is effectively improved, the service life is prolonged, polyurethane foam is arranged between the inner pipe body and the outer pipe body, the outer wall of the polyurethane foam is connected with a polyurethane coating in a laminating mode, the heat preservation performance is good, the heat preservation performance and the heat insulation performance of the heat preservation pipe are greatly improved, polyethylene sheets are wound on the outer wall of the polyurethane coating, the polyurethane foam and the polyurethane coating on the inner side are convenient to protect, the outer wall of the polyethylene sheets is connected with a heat preservation layer in a laminating mode, the heat preservation layer is made of rubber and plastic heat preservation cotton, and the heat conduction coefficient is low, the fireproof and flame retardant properties and the moisture resistance are good;

interior body and outer body set up with one heart, support fixedly through two sets of six for a set of brace rod supports between, and support performance is good, through interior body and outer body bilayer structure design, effectively improves insulating tube bulk strength.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 2 is an overall external structure view of the present invention;

in the figure, 1, an inner tube body; 2. a polyurethane foam; 3. a polyurethane coating; 4. a polyethylene sheet; 5. a heat-insulating layer; 6. an outer tubular body; 7. supporting ribs; 8. a corrosion-resistant coating.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-2, a rigid polyurethane spraying polyethylene winding prefabricated direct-buried heat preservation pipe comprises an inner pipe body 1, an outer pipe body 6 which is concentric with and does not contact with the inner pipe body 1 is arranged on the outer side of the inner pipe body 1, polyurethane foam 2 is arranged between the inner pipe body 1 and the outer pipe body 6, the inner wall of the polyurethane foam 2 is attached to the outer wall of the inner pipe body 1, a polyurethane coating 3 is attached to the outer wall of the polyurethane foam 2, a polyethylene sheet material 4 is wound on the outer wall of the polyurethane coating 3, a heat preservation layer 5 is attached to the outer wall of the polyethylene sheet material 4, and the outer wall of the heat preservation layer 5 is attached to the inner wall of the outer pipe body 6.

In this embodiment: the heat preservation pipe is composed of a double-layer structure of an inner pipe body 1 and an outer pipe body 6, the inner pipe body 1 and the outer pipe body 6 are both made of glass steel pipes, the weight is light, the strength is high, have good corrosion resistance simultaneously, wearability and ageing resistance, effectively improve the holistic intensity of insulating tube, increase of service life, be provided with polyurethane foam 2 between interior body 1 and the outer body 6, polyurethane foam 2's outer wall laminating is connected with polyurethane coating 3, thermal insulation performance is good, improve the heat insulating ability and the heat-proof quality of insulating tube greatly, polyurethane coating 3's outer wall round joint has polyethylene sheet 4, be convenient for protect inboard polyurethane foam 2 and polyurethane coating 3, polyethylene sheet 4's outer wall laminating is connected with heat preservation 5, heat preservation 5 is the rubber and plastic heat preservation cotton, it is low to have the coefficient of heat conductivity, it is fire-retardant to prevent fires, the characteristic of damp-proofing, good heat preservation effect has, further improve thermal insulation performance.

As a technical optimization scheme of the utility model, two sets of brace rod 7 of fixedly connected with between interior body 1 and the outer body 6, the quantity of a set of brace rod 7 is six, and two sets of brace rod 7 are located the both ends between interior body 1 and the outer body 6 respectively.

In this embodiment: interior body 1 and outer body 6 set up with one heart, support fixedly through two sets of six for a set of brace rod 7 between, support performance is good, through interior body 1 and the design of 6 bilayer structure of outer body, effectively improves insulating tube bulk strength.

As a technical optimization scheme of the utility model, interior body 1 and outer body 6 are glass steel pipe.

In this embodiment: the inner pipe body 1 and the outer pipe body 6 are both made of glass steel pipes, are light in weight and high in strength, have excellent corrosion resistance, abrasion resistance and ageing resistance, effectively improve the overall strength of the heat preservation pipe, and prolong the service life.

As a technical optimization scheme of the utility model, the heat preservation 5 is the rubber and plastic heat preservation cotton.

In this embodiment: the heat-insulating layer 5 is made of rubber-plastic heat-insulating cotton, has the characteristics of low heat conductivity coefficient, fire resistance, flame retardance, moisture resistance and good heat-insulating effect, and further improves the heat-insulating property.

As a technical optimization scheme of the utility model, the outer wall coating of outer body 6 has corrosion-resistant coating 8.

In this embodiment: the outer wall coating of outer body 6 has corrosion resistant coating 8, effectively improves the corrosion resistance of outer body 6, increase of service life.

The utility model discloses a theory of operation and use flow: the heat preservation pipe is composed of a double-layer structure of an inner pipe body 1 and an outer pipe body 6, the inner pipe body 1 and the outer pipe body 6 are both made of glass steel pipes, the weight is light, the strength is high, meanwhile, the heat-insulating pipe has excellent corrosion resistance, wear resistance and ageing resistance, the overall strength of the heat-insulating pipe is effectively improved, the service life is prolonged, polyurethane foam 2 is arranged between the inner pipe body 1 and the outer pipe body 6, the outer wall of the polyurethane foam 2 is connected with a polyurethane coating 3 in a laminating manner, the heat-insulating performance is good, the heat-insulating performance and the heat-insulating performance of the heat-insulating pipe are greatly improved, a polyethylene sheet 4 is wound on the outer wall of the polyurethane coating 3, the polyurethane foam 2 and the polyurethane coating 3 on the inner side are conveniently protected, a heat-insulating layer 5 is connected on the outer wall of the polyethylene sheet 4 in a laminating manner, and the heat-insulating layer 5 is made of rubber and plastic heat-insulating cotton and has the characteristics of low heat conductivity coefficient, fire resistance, flame retardance, moisture resistance and good heat-insulating effect, so that the heat-insulating performance is further improved;

interior body 1 and outer body 6 set up with one heart, support fixedly through two sets of six for a set of brace rod 7 between, support performance is good, through interior body 1 and the design of 6 bilayer structure of outer body, effectively improves insulating tube bulk strength.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a prefabricated direct-burried insulating tube of rigid polyurethane spraying polyethylene winding, includes interior body (1), its characterized in that: the outer side of the inner pipe body (1) is provided with an outer pipe body (6) which is concentric with the inner pipe body (1) and does not contact with the inner pipe body, polyurethane foam (2) is arranged between the inner pipe body (1) and the outer pipe body (6), the inner wall of the polyurethane foam (2) is connected with the outer wall of the inner pipe body (1) in a laminating manner, the outer wall of the polyurethane foam (2) is connected with a polyurethane coating (3) in a laminating manner, the outer wall of the polyurethane coating (3) is wound and connected with a polyethylene sheet (4), the outer wall of the polyethylene sheet (4) is connected with a heat-insulating layer (5) in a laminating manner, and the outer wall of the heat-insulating layer (5) is connected with the inner wall of the outer pipe body (6) in a laminating manner.

2. The rigid polyurethane-sprayed polyethylene-wound prefabricated direct-buried thermal insulation pipe as claimed in claim 1, wherein the rigid polyurethane-sprayed polyethylene-wound prefabricated direct-buried thermal insulation pipe comprises: two groups of support ribs (7) are fixedly connected between the inner pipe body (1) and the outer pipe body (6), the number of the support ribs (7) is six, and the two groups of support ribs (7) are respectively arranged at two ends between the inner pipe body (1) and the outer pipe body (6).

3. The rigid polyurethane-sprayed polyethylene-wound prefabricated direct-buried thermal insulation pipe as claimed in claim 1, wherein the rigid polyurethane-sprayed polyethylene-wound prefabricated direct-buried thermal insulation pipe comprises: the inner pipe body (1) and the outer pipe body (6) are both glass steel pipes.

4. The rigid polyurethane-sprayed polyethylene-wound prefabricated direct-buried thermal insulation pipe as claimed in claim 1, wherein the rigid polyurethane-sprayed polyethylene-wound prefabricated direct-buried thermal insulation pipe comprises: the heat-insulating layer (5) is made of rubber and plastic heat-insulating cotton.

5. The rigid polyurethane-sprayed polyethylene-wound prefabricated direct-buried thermal insulation pipe as claimed in claim 1, wherein the rigid polyurethane-sprayed polyethylene-wound prefabricated direct-buried thermal insulation pipe comprises: the outer wall of the outer tube body (6) is coated with a corrosion-resistant coating (8).