CN219297602U - Internal heat preservation tool for heat treatment of pipeline welded joint - Google Patents

Internal heat preservation tool for heat treatment of pipeline welded joint Download PDF

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Publication number
CN219297602U
CN219297602U CN202223436105.0U CN202223436105U CN219297602U CN 219297602 U CN219297602 U CN 219297602U CN 202223436105 U CN202223436105 U CN 202223436105U CN 219297602 U CN219297602 U CN 219297602U
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China
Prior art keywords
heat preservation
support
heat treatment
heat
pipeline
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CN202223436105.0U
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Chinese (zh)
Inventor
车向迎
窦明伟
董涛
李志伟
陈瑞
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Sinopec Fourth Construction Co Ltd
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Sinopec Fourth Construction Co Ltd
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Abstract

The utility model discloses an inner heat preservation tool for heat treatment of a pipeline welded joint, which comprises a heat preservation ring arranged on the inner side of a pipeline welded joint in a lining manner, wherein two annular support keels fixedly connected with the heat preservation ring are arranged on the inner side of a Wen Huanna, a plurality of pairs of support battens fixedly connected with the two annular support keels are arranged on the inner side of the two annular support keels, each pair of support battens are arranged on the same radial direction of the heat preservation ring, the plurality of pairs of support battens are uniformly distributed, the length of each support batten is the same as the width of the heat preservation ring, at least one inner support is arranged between each pair of support battens, the main body of the inner support is made of a steel pipe, bolts are inserted at two ends of the main body of the inner support, nuts are connected on the bolts, the nuts are pressed on the end faces of the main body of the inner support, and the upper ends of the bolts are pressed on the support battens. The utility model can greatly improve the heat preservation effect during the heat treatment of the pipeline, thereby facilitating the control of the heat treatment temperature, improving the heat treatment effect and being particularly suitable for large-caliber pipelines.

Description

Internal heat preservation tool for heat treatment of pipeline welded joint
Technical Field
The utility model relates to a heat preservation tool, in particular to an inner heat preservation tool for heat treatment of a pipeline welding joint.
Background
At present, the heat treatment of the pipeline welded joint is generally carried out by wrapping the crawler-type electric heating belt on the outer side of the pipeline for heating, and the heat preservation material is wrapped on the outer side of the electric heating belt for heat preservation, so that the optimal heat treatment effect is achieved. In order to avoid adverse effects of the cross-hall wind on the heat treatment process and quality problems, the pipe orifice needs to be plugged. When the large-caliber pipeline is subjected to heat treatment by adopting the method, the pipeline is large in diameter, long in circumference, thin in wall, poor in heat preservation effect, fast in heat dissipation, difficult in temperature control, and high in process control difficulty, so that uneven heating temperature, large in deformation and uneven in performance after heat treatment are easily caused, an ideal heat treatment effect is hardly achieved, the quality cannot be guaranteed, and the construction requirements are hardly met.
Disclosure of Invention
The utility model provides an inner heat preservation tool for heat treatment of a pipeline welding joint, which aims to solve the technical problems in the prior art, has good heat preservation effect during heat treatment of a pipeline, is convenient for temperature control, can improve the heat treatment effect, and is particularly suitable for large-caliber pipelines.
The utility model adopts the technical proposal for solving the technical problems in the prior art that: the utility model provides an interior heat preservation frock for heavy-calibre pipeline welded joint thermal treatment, includes the lining and establishes the heat preservation ring at pipeline welding seam inboard be equipped with in the heat preservation ring rather than the rigid coupling twice annular support fossil fragments, twice annular support fossil fragments inboard be equipped with the support lath of many pairs rather than rigid coupling, every pair the support lath sets up in the same radial direction of heat preservation ring, many pairs the support lath evenly lays, the length of support lath with the width of heat preservation ring is the same, is equipped with at least one internal stay between every pair of support lath, the main part of internal stay is made by the steel pipe the main part both ends of internal stay all insert and be equipped with the bolt be connected with the screw on the bolt, the screw crimping is in on the main part terminal surface of internal stay, the upper end roof pressure of bolt is in on the support lath.
The annular supporting keels are made of elastic flat steel.
The heat preservation ring adopts iron wire ligature to be in twice annular support fossil fragments.
The heat-insulating ring is formed by splicing aluminum silicate heat-insulating cotton.
The utility model has the advantages and positive effects that: through the adoption of the inner heat preservation ring with the inner support, the inner heat preservation ring can be well attached to the inner side of the welding seam, the heat preservation effect of the heat treatment inside the pipeline is improved, and the heat preservation effect of the heat treatment of the pipeline can be greatly improved on the basis of the outer heat preservation structure, so that the heat treatment temperature is convenient to control, the heat treatment effect can be improved, and the heat preservation device is particularly suitable for large-caliber pipelines. The inner support length of the tool is adjustable, the fit degree of the inner heat-insulating ring and the inner wall of the pipeline is controllable, and the use effect is good; the assembly and disassembly are convenient, the occupied space is small, the device can be repeatedly used, and the manufacturing cost is low.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a side view of the present utility model;
fig. 3 is a schematic structural diagram of the application of the present utility model.
In the figure: 1. welding seams; 2. a heat-insulating ring; 3. annular support keels; 4. a support slat; 5. an inner support; 5-1, a main body; 5-2, bolts; 5-3, screw.
Detailed Description
For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings in which:
referring to fig. 1-3, an inner heat preservation tool for heat treatment of a large-caliber pipeline welded joint comprises a heat preservation ring 2 lined on the inner side of a pipeline welded joint 1, two annular support keels 3 fixedly connected with the heat preservation ring 2 are arranged in the heat preservation ring 2, a plurality of pairs of support battens 4 fixedly connected with the annular support keels 3 are arranged on the inner side of the annular support keels 3, each pair of support battens 4 are arranged on the same radial direction of the heat preservation ring, the plurality of pairs of support battens 4 are uniformly distributed, the length of each support batten 4 is the same as the width of the heat preservation ring 2, at least one inner support 5 is arranged between each pair of support battens 4, a main body 5-1 of the inner support 5 is made of steel pipes, bolts 5-2 are inserted at two ends of the main body 5-1 of the inner support, nuts 5-3 are connected to the bolts 5-2, and the nuts 5-3 are pressed on the end faces of the main body 5-1 of the inner support, and the upper ends of the bolts 5-2 are pressed on the support battens 4.
The inner heat-insulating ring with the inner support is adopted, the inner support length is adjustable, the fit degree of the inner heat-insulating ring and the inner wall of the pipeline is controllable, the inner heat-insulating ring can be well fit inside the welding seam, and the heat-treatment heat-insulating effect inside the pipeline is improved. On the basis of the outer side heat preservation structure, the heat preservation effect during heat treatment of the pipeline can be greatly improved, so that the heat treatment temperature is convenient to control, the heat treatment effect can be improved, and the heat preservation device is particularly suitable for large-caliber pipelines.
In this embodiment, the annular supporting keel 3 is made of elastic flat steel, and the elastic supporting keel can tightly compress the heat-insulating ring 2 on the inner side of the pipeline, so that the heat-insulating ring 2 is tightly combined with the inner side of the pipeline, and the heat-insulating effect of heat treatment in the pipeline is further improved. The heat preservation ring 2 adopts the iron wire ligature twice on the annular support fossil fragments 3, simple structure, construction convenience. The heat preservation ring 2 is formed by splicing aluminum silicate heat preservation cotton, and has good heat preservation effect and low cost.
The application of the utility model:
wrapping the crawler-type electric heating belt outside the pipeline, wrapping an external heat-insulating structure outside the electric heating belt, additionally installing the tool on the inner side of the pipeline, not plugging a pipe orifice, and being good in heat-insulating effect of heat treatment inside the pipeline, and capable of greatly improving the heat-insulating effect of the pipeline during heat treatment on the basis of the external heat-insulating structure, so that the heat treatment temperature is convenient to control, the heat treatment effect can be improved, and the crawler-type electric heating belt is particularly suitable for large-caliber pipelines. And the internal support of this frock adopts screw drive structure, and length adjustable, and interior heat preservation ring is controllable with the laminating degree of pipeline inner wall, excellent in use effect.
Although the preferred embodiments of the present utility model have been described above with reference to the accompanying drawings, the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the appended claims, which are within the scope of the present utility model.

Claims (4)

1. The utility model provides an interior heat preservation frock for heavy-calibre pipeline welded joint thermal treatment, its characterized in that includes lining establishes the heat preservation ring at pipeline welding seam inboard be equipped with in the heat preservation ring rather than the rigid coupling twice annular support fossil fragments, twice annular support fossil fragments inboard be equipped with the support lath of many pairs rather than rigid couplings, every pair the support lath sets up in the same radial direction of heat preservation ring, many pairs the support lath evenly lays, the length of support lath with the width of heat preservation ring is the same, every pair be equipped with at least one internal stay between the support lath, the main part of internal stay is made by the steel pipe the bolt has all been inserted at the main part both ends of internal stay be connected with the screw on the bolt, the screw crimping is in on the main part terminal surface of internal stay, the upper end roof pressure of bolt is in on the support lath.
2. The internal heat preservation tooling for heat treatment of a welded joint of a large diameter pipe according to claim 1, wherein the annular support keel is made of elastic flat steel.
3. The internal heat preservation tooling for heat treatment of a welded joint of a large-caliber pipeline according to claim 1, wherein the heat preservation rings are bound on the two annular support keels by iron wires.
4. The internal heat preservation tool for heat treatment of a welded joint of a large-caliber pipeline according to claim 1, wherein the heat preservation ring is formed by splicing aluminum silicate heat preservation cotton.
CN202223436105.0U 2022-12-21 2022-12-21 Internal heat preservation tool for heat treatment of pipeline welded joint Active CN219297602U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223436105.0U CN219297602U (en) 2022-12-21 2022-12-21 Internal heat preservation tool for heat treatment of pipeline welded joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223436105.0U CN219297602U (en) 2022-12-21 2022-12-21 Internal heat preservation tool for heat treatment of pipeline welded joint

Publications (1)

Publication Number Publication Date
CN219297602U true CN219297602U (en) 2023-07-04

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ID=86955229

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223436105.0U Active CN219297602U (en) 2022-12-21 2022-12-21 Internal heat preservation tool for heat treatment of pipeline welded joint

Country Status (1)

Country Link
CN (1) CN219297602U (en)

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