CN222687680U

CN222687680U - A soft and hard combined prefabricated steam overhead insulation pipe

Info

Publication number: CN222687680U
Application number: CN202420735851.XU
Authority: CN
Inventors: 韩建新; 许锐
Original assignee: Hebei Yuanfeng Pipeline Engineering Co ltd
Current assignee: Hebei Yuanfeng Pipeline Engineering Co ltd
Priority date: 2024-04-11
Filing date: 2024-04-11
Publication date: 2025-03-28
Anticipated expiration: 2034-04-11

Abstract

The utility model discloses a prefabricated steam overhead insulation pipe combining soft and hard, including an inner steel pipe, an intermediate layer and an outer protective pipe, wherein the intermediate layer is an insulation layer, a first reinforcement layer, a buffer layer and a second reinforcement layer from the inside to the outside, wherein the first reinforcement layer and the second reinforcement layer are both buried with a plurality of evenly distributed annular reinforcement plates, and the plurality of annular reinforcement plates are both provided with circular holes distributed in an annular array, and the corresponding plurality of circular holes are penetrated with fine steel wires. The utility model has reasonable design and good practicality, and can utilize the first reinforcement layer, the second reinforcement layer and the buffer layer to effectively protect the inner steel pipe, greatly improve the compressive performance of the insulation pipe, and improve the tensile performance of the insulation pipe by utilizing a plurality of fine steel wires, and can also utilize the combined effect of the buffer layer, the first reinforcement layer and the second reinforcement layer to greatly improve the insulation performance of the insulation pipe.

Description

Soft and hard combined prefabricated steam overhead heat insulation pipe

Technical Field

The utility model relates to the technical field of heat-insulating pipelines, in particular to a soft and hard combined prefabricated steam overhead heat-insulating pipe.

Background

The steam pipeline is installed and then needs to be subjected to heat preservation construction on site, the adopted heat preservation structure is mainly made of multi-layer soft heat preservation materials, such as aluminum silicate cotton, glass cotton and the like, and galvanized iron sheets, color steel plates, aluminum sheets and the like are used for wrapping and protecting the outer surface of the pipeline after the heat preservation construction is completed. The existing steam pipeline after heat preservation construction has the problems of poor pressure resistance, easy trampling damage in construction or after finishing, uncontrollable heat preservation quality, long construction period, large engineering construction difficulty, unfavorable environmental protection and the like in site construction. The steam pipeline after heat preservation construction needs to be installed and erect on the pipe pier, and the support ring outside the steam pipeline needs to be installed on the pipe pier during erection, and the half ring support structure is up and down, because the outer protective tube is mostly made of galvanized iron sheets, aluminum sheets and other thinner materials, the inner side contact surface material is a soft heat preservation material with insufficient compressive strength, and therefore, the conventional support ring cannot meet the actual erection requirement and is unstable in erection support.

The soft and hard combined prefabricated steam overhead heat-insulating pipe for the Chinese patent publication with the publication number of CN112431966A is technically characterized by comprising a heat-insulating pipe body and a bracket body, wherein the heat-insulating pipe body comprises an inner pipe body, a soft cushion layer, a heat-insulating supporting layer and an outer protecting pipe, the outer side of the inner pipe body is sequentially provided with the soft cushion layer, the heat-insulating supporting layer and the outer protecting pipe from inside to outside, and the heat-insulating supporting layer comprises the soft heat-insulating layer and the hard supporting layer. The invention has reasonable and compact structure and convenient use, and the embodiment has both heat-insulating performance and supporting performance by arranging the soft heat-insulating layer and the hard supporting layer.

In the scheme, at least the following defects are found in actual operation that the heat-insulating pipe has certain structural strength, but a plurality of weak strength parts exist between the inner pipe body and the outer protective pipe in order to ensure that the inner pipe body is not directly contacted with the hard supporting layers when being heated and expanded between the two adjacent hard supporting layers, so that the compressive strength of the heat-insulating pipe is poor, and therefore, the soft and hard combined prefabricated steam overhead heat-insulating pipe is provided for solving the problems.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a soft and hard combined prefabricated steam overhead heat-insulating pipe, which solves the problems that the heat-insulating pipe has certain structural strength, but is not in direct contact with a hard supporting layer when an inner pipe body is heated and expanded between two adjacent hard supporting layers, and a plurality of weak strength parts exist between the inner pipe body and an outer protective pipe, so that the compression strength of the heat-insulating pipe is poor.

The soft and hard combined prefabricated steam overhead heat insulation pipe comprises an inner layer steel pipe, an intermediate layer and an outer protection pipe, wherein the intermediate layer is sequentially provided with a heat insulation layer, a first reinforcing layer, a buffer layer and a second reinforcing layer from inside to outside.

Preferably, a plurality of annular reinforcing plates which are uniformly distributed are buried in the first reinforcing layer and the second reinforcing layer, circular holes which are distributed in an annular array are formed in the annular reinforcing plates, and thin steel wires penetrate through the corresponding circular holes.

Preferably, the distance between two adjacent annular reinforcing plates in the first reinforcing layer is the same as the distance between two adjacent annular reinforcing plates in the second reinforcing layer.

Preferably, the annular reinforcing plates in the first reinforcing layer are located at intermediate positions of the two annular reinforcing plates in the corresponding second reinforcing layer.

Preferably, the heat preservation is polyurethane heat preservation material, and the buffer layer is aerogel material, and outer pillar is polyethylene material, and first reinforcement layer and second reinforcement layer are rubber material.

The utility model provides a soft and hard combined prefabricated steam overhead heat-insulating pipe. The beneficial effects are as follows:

(1) This soft or hard combines prefabricated steam overhead insulation pipe through utilizing the combined action by first enhancement layer, second enhancement layer and buffer layer, can effectively protect the inlayer steel pipe, promotes the compressive property of insulation pipe greatly to through utilizing a plurality of thin steel wires to promote the tensile property of insulation pipe.

(2) This soft or hard combines prefabricated steam overhead insulation pipe through utilizing the combined action by buffer layer, first reinforcement layer and second reinforcement layer, can promote the thermal insulation performance of insulation pipe greatly.

Drawings

FIG. 1 is a schematic perspective view of the first embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of the front view of the present utility model;

FIG. 3 is a schematic top view of the present utility model;

Fig. 4 is a schematic perspective view of a second embodiment of the present utility model.

In the figure, 1, an inner layer steel pipe, 2, a heat preservation layer, 3, a first reinforcing layer, 4, a buffer layer, 5, a second reinforcing layer, 6, an outer protective pipe, 7, an annular reinforcing plate and 8, a thin steel wire.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in figures 1-4, the utility model provides a technical scheme that the soft and hard combined prefabricated steam overhead heat-insulating pipe comprises an inner layer steel pipe 1, an intermediate layer and an outer protection pipe 6, wherein the intermediate layer is sequentially provided with a heat-insulating layer 2, a first reinforcing layer 3, a buffer layer 4 and a second reinforcing layer 5 from inside to outside, the heat-insulating layer 2 is made of polyurethane heat-insulating materials, the buffer layer 4 is made of aerogel materials, and the outer protection pipe 6 is made of polyethylene materials.

In this embodiment, the first reinforcing layer 3 and the second reinforcing layer 5 are made of rubber, the first reinforcing layer 3 and the second reinforcing layer 5 are embedded with a plurality of annular reinforcing plates 7 which are uniformly distributed, circular holes which are distributed in an annular array are formed in the annular reinforcing plates 7, thin steel wires 8 penetrate through the corresponding circular holes, the distance between two adjacent annular reinforcing plates 7 in the first reinforcing layer 3 is the same as the distance between two adjacent annular reinforcing plates 7 in the second reinforcing layer 5, and the annular reinforcing plates 7 in the first reinforcing layer 3 are located at the middle positions of the two annular reinforcing plates 7 in the corresponding second reinforcing layer 5.

Through the structure, the soft and hard combined prefabricated steam overhead heat-insulating pipe provided by the utility model can effectively protect the inner layer steel pipe by utilizing the first reinforcing layer, the second reinforcing layer and the buffer layer, greatly improve the compression resistance of the heat-insulating pipe, and can greatly improve the heat-insulating performance of the heat-insulating pipe by utilizing the combined action of the buffer layer, the first reinforcing layer and the second reinforcing layer by utilizing the tensile resistance of the heat-insulating pipe.

The above description is merely an embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present utility model, and it is intended to cover the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The soft and hard combined prefabricated steam overhead heat-insulating pipe is characterized by comprising an inner layer steel pipe (1), an intermediate layer and an outer protective pipe (6), wherein the intermediate layer comprises a heat-insulating layer (2), a first reinforcing layer (3), a buffer layer (4) and a second reinforcing layer (5) from inside to outside in sequence;

A plurality of annular reinforcing plates (7) which are uniformly distributed are buried in the first reinforcing layer (3) and the second reinforcing layer (5), circular holes which are distributed in an annular array are formed in the annular reinforcing plates (7), and thin steel wires (8) penetrate through the corresponding circular holes.

2. The soft and hard combined prefabricated steam overhead heat insulation pipe according to claim 1, wherein the distance between two adjacent annular reinforcing plates (7) in the first reinforcing layer (3) is the same as the distance between two adjacent annular reinforcing plates (7) in the second reinforcing layer (5).

3. The soft and hard combined prefabricated steam overhead heat insulation pipe according to claim 1, wherein the annular reinforcing plates (7) in the first reinforcing layer (3) are located at the middle positions of the two annular reinforcing plates (7) in the second reinforcing layer (5).

4. The soft and hard combined prefabricated steam overhead heat-insulating pipe according to claim 1, wherein the heat-insulating layer (2) is made of polyurethane heat-insulating materials.

5. The soft and hard combined prefabricated steam overhead heat insulation pipe according to claim 1, wherein the buffer layer (4) is made of aerogel.

6. The soft and hard combined prefabricated steam overhead heat insulation pipe according to claim 1, wherein the outer protection pipe (6) is made of polyethylene.

7. The soft and hard combined prefabricated steam overhead heat insulation pipe according to claim 1, wherein the first reinforcing layer (3) and the second reinforcing layer (5) are made of rubber.