CN210978986U

CN210978986U - Polyurethane prefabricated direct-buried insulating pipe

Info

Publication number: CN210978986U
Application number: CN201921976260.7U
Authority: CN
Inventors: 曾广生
Original assignee: Taishan Xianguang Building Materials Co Ltd
Current assignee: Taishan Xianguang Building Materials Co Ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-07-10
Anticipated expiration: 2029-11-15

Abstract

The utility model relates to a insulating tube technical field just discloses a prefabricated direct-burried insulating tube of polyurethane, comprising a steel pipe, the inboard fixed mounting of steel pipe has the heat preservation, the inboard fixed mounting of heat preservation has inside anti-corrosion coating, the outside fixed mounting of steel pipe has the insulating layer, the outside fixed mounting of insulating layer has the polyurethane heat preservation, the outside fixed mounting of polyurethane heat preservation has outside anti-corrosion coating, the equal fixed mounting in the steel pipe left and right sides has the connector, the inner chamber of connector is provided with the waterstop. This prefabricated direct-burried insulating tube of polyurethane, through the use of heat preservation, prevent that the inside temperature of pipeline from running off to the outside, simultaneously through the use of insulating layer to utilize the polyurethane heat preservation to wrap up the pipeline, prevent that outside cold air from getting into inside the pipeline, utilize aerogel between heat preservation and the inside anti-corrosion coating simultaneously, improve the heat preservation effect of heat preservation, ensure that this pipeline keeps warm effectually, prevent liquid at transmission process heat loss.

Description

Polyurethane prefabricated direct-buried insulating pipe

Technical Field

The utility model relates to a thermal insulation pipe technical field specifically is a prefabricated direct-burried thermal insulation pipe of polyurethane.

Background

The heat preservation pipe is a short name of a heat insulation pipeline, is used for conveying liquid, gas and other media, and is widely applied to heat insulation engineering of pipelines in petroleum, chemical engineering, aerospace, municipal engineering and the like.

The existing heat-insulating pipe structure is generally simple, only the inner steel pipe, the outer protective pipe and the middle heat-insulating layer are provided, the internal temperature is prevented from being lost outwards during use, but in cold winter, external cold air still cannot be prevented from entering the heat-insulating pipe, the heat-insulating effect of the heat-insulating pipe in winter is poor, meanwhile, the existing heat-insulating pipe is used for conveying liquid, the pipeline joint is easy to leak, the liquid conveying is not ideal enough, and the pipeline is used for a long time, is easy to suffer from double corrosion of internal media and external media, and the service life is shortened. Therefore, a polyurethane prefabricated direct-buried heat insulation pipe is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a prefabricated direct-burried insulating tube of polyurethane possesses to keep warm effectually, prevents medium heat loss and improves pipeline life and sealing performance, prevents the advantage of liquid leakage, and it is poor to have solved the insulating tube and keep warm in winter, and liquid leaks easily, the problem that life reduced.

The utility model provides a following technical scheme: the utility model provides a prefabricated direct-burried insulating tube of polyurethane, includes the steel pipe, the inboard fixed mounting of steel pipe has the heat preservation, the inboard fixed mounting of heat preservation has inside anti-corrosion coating, the outside fixed mounting of steel pipe has the insulating layer, the outside fixed mounting of insulating layer has the polyurethane heat preservation, the outside fixed mounting of polyurethane heat preservation has outside anti-corrosion coating, the equal fixed mounting in steel pipe left and right sides has the connector, the inner chamber of connector is provided with the sealing strip, and the inboard of sealing strip is provided with the sealing member.

Preferably, aerogel is arranged between the heat preservation layer and the internal anti-corrosion layer, and the aerogel is provided with two layers.

Preferably, the sealing element comprises a sealing filler layer fixedly connected with the water stop strip, and a sealing layer is arranged on the inner side of the sealing filler layer.

Preferably, the inner side of the sealing layer is provided with a thread groove.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this prefabricated direct-burried insulating tube of polyurethane, through the use of heat preservation, prevent that the inside temperature of pipeline from running off to the outside, simultaneously through the use of insulating layer to utilize the polyurethane heat preservation to wrap up the pipeline, prevent that outside cold air from getting into inside the pipeline, utilize aerogel between heat preservation and the inside anti-corrosion coating simultaneously, improve the heat preservation effect of heat preservation, ensure that this pipeline keeps warm effectually, prevent liquid at transmission process heat loss.

2. This prefabricated direct-burried insulating tube of polyurethane, through the use of inside anti-corrosion coating, protects pipeline inside, prevents the pipeline inside medium corrosion pipeline, utilizes outside anti-corrosion coating to prevent the outside medium corrosion pipeline of pipeline simultaneously, and the dual protection pipeline does not receive the corruption harm, guarantees that device life improves.

3. This prefabricated direct-burried insulating tube of polyurethane through the use of sealing member, has improved the device's sealing performance, prevents that liquid from leaking in joint department, and through the use of sealing rod, its ability of meeting water inflation utilizes further the leak protection effect that improves the device simultaneously, ensures that liquid normally carries.

Drawings

FIG. 1 is a schematic view of the front side of the structure of the present invention;

fig. 2 is the cross-sectional view of the cross section of the utility model.

In the figure: 1. a steel pipe; 2. a heat-insulating layer; 3. an internal anti-corrosion layer; 4. a thermal insulation layer; 5. a polyurethane heat-insulating layer; 6. an outer anti-corrosion layer; 7. a connecting port; 8. a water stop bar; 9. and a seal.

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. 1-2, a prefabricated polyurethane direct-buried thermal insulation pipe comprises a steel pipe 1, a thermal insulation layer 2 is fixedly installed on the inner side of the steel pipe 1, an internal anti-corrosion layer 3 is fixedly installed on the inner side of the thermal insulation layer 2, a thermal insulation layer 4 is fixedly installed on the outer side of the steel pipe 1, a polyurethane thermal insulation layer 5 is fixedly installed on the outer side of the thermal insulation layer 4, the internal temperature of the pipeline is prevented from being lost to the outside by using the thermal insulation layer 2, the pipeline is wrapped by the polyurethane thermal insulation layer 5 by using the thermal insulation layer 4, external cold air is prevented from entering the pipeline, the thermal insulation effect of the thermal insulation layer is improved, the thermal insulation effect of the pipeline is ensured to be good, the heat loss of liquid in the transmission process is prevented, an external anti-corrosion layer 6 is fixedly installed on the outer side of the polyurethane thermal insulation layer, utilize outside anti-corrosion coating 6 to prevent that the outside medium of pipeline from corroding the pipeline simultaneously, the dual protection pipeline does not receive the corruption harm, guarantees that the device life improves, and the equal fixed mounting in the steel pipe 1 left and right sides has connector 7, and the inner chamber of connector 7 is provided with sealing rod 8, and through the use of sealing rod 8, utilizes its ability of meeting water inflation, further improves the device's leak protection effect, ensures that liquid normally carries, and the inboard of sealing rod 8 is provided with sealing member 9.

Wherein, be provided with the aerogel between heat preservation 2 and the inside anti-corrosion coating 3, the aerogel is provided with two-layerly, sets up the three-layer aerogel between heat preservation 2 and the inside anti-corrosion coating 3, improves the heat preservation effect of heat preservation, ensures that this pipeline keeps warm effectually, prevents that liquid from being at transmission process heat loss.

Wherein, sealing member 9 includes the sealed packing layer with 8 fixed connection of sealing rod, and the inboard of sealed packing layer is provided with the sealing layer, and the use of sealed packing layer has increased the elastic recovery ability of sealing member, avoids sealing member 9 to warp in the use, has improved the sealed effect of sealing member 9, prevents that liquid from leaking in transportation process.

The inner side of the sealing layer is provided with a thread groove, the inner side of the sealing layer is provided with the thread groove, so that the pipeline connection is convenient, the pressing force between the pipelines is improved, the connection between the pipelines is ensured to be tight, the structure is simple, the design is reasonable, and the practicability is high.

The working principle is as follows: through the use of heat preservation 2, prevent that the inside temperature of pipeline from running off to the outside, utilize polyurethane heat preservation 5 to wrap up the pipeline simultaneously, prevent that outside cold air from getting into inside the pipeline, utilize the aerogel between heat preservation 2 and the inside anti-corrosion coating 3 simultaneously, improve the heat preservation effect of heat preservation 2, and through the use of sealing member 9, go on sealed to the pipeline, prevent that liquid from leaking in joint department, utilize 8 ability of meeting water inflation of sealing rod simultaneously, further improve the device's leak protection effect, can.

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

1. The utility model provides a prefabricated direct-burried insulating tube of polyurethane, includes steel pipe (1), its characterized in that: the steel pipe heat preservation system is characterized in that a heat preservation layer (2) is fixedly mounted on the inner side of the steel pipe (1), an inner anti-corrosion layer (3) is fixedly mounted on the inner side of the heat preservation layer (2), a heat insulation layer (4) is fixedly mounted on the outer side of the steel pipe (1), a polyurethane heat preservation layer (5) is fixedly mounted on the outer side of the heat insulation layer (4), an outer anti-corrosion layer (6) is fixedly mounted on the outer side of the polyurethane heat preservation layer (5), a connector (7) is fixedly mounted on the left side and the right side of the steel pipe (1), a water stop strip (8) is arranged in an inner cavity of the connector (7).

2. The prefabricated direct-burial polyurethane thermal insulation pipe as claimed in claim 1, wherein: aerogel is arranged between the heat preservation layer (2) and the internal anti-corrosion layer (3), and the aerogel is provided with two layers.

3. The prefabricated direct-burial polyurethane thermal insulation pipe as claimed in claim 1, wherein: the sealing element (9) comprises a sealing packing layer fixedly connected with the water stop strip (8), and a sealing layer is arranged on the inner side of the sealing packing layer.

4. The prefabricated direct-burial polyurethane thermal insulation pipe as claimed in claim 3, wherein: and a thread groove is formed in the inner side of the sealing layer.