CN212931089U

CN212931089U - Double-pipe heat exchanger for alumina production

Info

Publication number: CN212931089U
Application number: CN202021778854.XU
Authority: CN
Inventors: 谢小强; 李志国; 王剑; 唐时健
Original assignee: SHENYANG BOYU TECHNOLOGY CO LTD
Current assignee: SHENYANG BOYU TECHNOLOGY CO LTD
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-04-09
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a double-pipe heat exchanger used in alumina production, which comprises an outer pipe, wherein the outer pipe is internally provided with an inner pipe and a pipeline bracket, the inner pipe is arrayed in the inner circle of the outer pipe by the circle center circumference of the outer pipe, the number of the inner pipes is set according to the size of the outer pipe, the pipeline bracket is L-shaped angle steel, and the pipeline bracket is also arrayed in the inner circle of the outer pipe by the circle center circumference of the outer pipe; a pipeline bracket is arranged between every two inner pipes at intervals, and two sides of the pipeline bracket are respectively welded with the outer walls of the inner pipes; in the vertical direction, the inner tube upper portion and the lower part of setting semicircle department on the outer tube all with pipeline scaffold weldment, the utility model has the advantages that: the welding points arranged in the vertical direction bear the weight of the inner pipe on one hand, the displacement and the play of the inner pipe on the other hand are prevented, meanwhile, the difference of the internal temperature is large, the welding mode can effectively conduct heat, and the arrangement mode of the circumferential array can enable the cold and hot deformation in the pipe to be consistent and the stress condition to be consistent.

Description

Double-pipe heat exchanger for alumina production

Technical Field

The utility model relates to an aluminium industry production field, a heat transfer device for aluminium industry production specifically says so.

Background

The existing double-pipe heat exchanger has the defects of complex manufacture of a pipe bracket, large cutting and welding workload, large later-stage overhauling and maintenance workload and the like, and internal double-pipe heat exchangers in different quantities are needed according to actual use conditions.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model discloses a double-pipe heat exchanger used in the production of alumina.

The specific technical scheme is as follows:

a double-pipe heat exchanger used in the production of alumina comprises an outer pipe, wherein an inner pipe and a pipe bracket are arranged inside the outer pipe, the inner pipe is arrayed in the inner circle of the outer pipe by the circle center circumference of the outer pipe, the number of the inner pipes is set according to the size of the outer pipe, the pipe bracket is an L-shaped angle steel, and the pipe bracket is also arrayed in the inner circle of the outer pipe by the circle center circumference of the outer pipe; a pipeline bracket is arranged between every two inner pipes at intervals, and two sides of the pipeline bracket are respectively welded with the outer walls of the inner pipes; in the vertical direction, the upper part and the lower part of the inner pipe arranged at the upper semicircle of the outer pipe are welded with the pipeline bracket.

The pipeline support is arranged in an equilateral mode.

The end part of the pipeline bracket is arranged along with the inner circle contact part of the outer pipe.

The utility model has the advantages that: set up many solder joints in the vertical direction and undertake inner tube weight on the one hand, on the other hand prevents that the inner tube displacement from drunkenness, and inside temperature difference is big simultaneously, and the welded mode can heat conduction effectively, and the arrangement of circumference array can be so that when intraductal cold and hot deflection is unanimous, the atress condition is also unanimous, and the structure that pipeline bracket and inner tube welding are in the same place can use the inner tube of appropriate quantity as required, with the inside modularization of radiator, increases the functionality.

Drawings

FIG. 1 is a schematic view of a three-tube structure of the present invention;

fig. 2 is a schematic view of the structure of four inner tubes of the present invention.

Detailed Description

The present invention is specifically described below with reference to the accompanying drawings, and as shown in fig. 1 and fig. 2, a double-pipe heat exchanger for use in alumina production includes an outer pipe 1, an inner pipe 2 and a pipe support 3 are arranged inside the outer pipe 1, the inner pipe 2 is arrayed in the inner circle of the outer pipe 1 by the circle center circumference of the outer pipe, the number of the inner pipes is set according to the size of the outer pipe, the pipe support 3 is an L-shaped angle steel, and the pipe support is also arrayed in the inner circle of the outer pipe by the circle center circumference of the outer pipe; a pipeline bracket is arranged between every two inner pipes at intervals, and two sides of the pipeline bracket are respectively welded with the outer walls of the inner pipes; in the vertical direction, the upper part and the lower part of the inner pipe arranged at the upper semicircle of the outer pipe are both welded with the pipeline bracket, the welding spot position arranged at the upper semicircle of the inner pipe is A, and the welding spot position arranged at the lower semicircle of the inner pipe is B.

The pipeline support is arranged in an equilateral mode.

The end part of the pipeline bracket is arranged along the shape of the contact part C of the inner circle of the outer pipe.

The utility model discloses a quantity of inner tube can change as required at any time, and concrete embodiment only discloses the trisection, the arrangement of quartering to the circumference array mode that the outer tube is the centre of a circle all should belong to at the inside structure of outer tube the utility model discloses an in the protection scope.

Claims

1. A double-pipe heat exchanger for use in alumina production, comprising an outer pipe, characterized in that: the inner pipe and the pipeline support are arranged in the outer pipe, the inner pipes are arrayed in the inner circle of the outer pipe in the circle center circumference of the outer pipe, the number of the inner pipes is set according to the size of the outer pipe, the pipeline support is L-shaped angle steel, and the pipeline support is arrayed in the inner circle of the outer pipe in the circle center circumference of the outer pipe; a pipeline bracket is arranged between every two inner pipes at intervals, and two sides of the pipeline bracket are respectively welded with the outer walls of the inner pipes; in the vertical direction, the upper part and the lower part of the inner pipe arranged at the upper semicircle of the outer pipe are welded with the pipeline bracket.

2. The double-tube heat exchanger for use in alumina production according to claim 1, wherein: the pipeline support is arranged in an equilateral mode.

3. The double-tube heat exchanger for use in alumina production according to claim 1, wherein: the end part of the pipeline bracket is arranged along with the inner circle contact part of the outer pipe.