CN211706740U

CN211706740U - Double-layer tube body structure of conversion tube

Info

Publication number: CN211706740U
Application number: CN201921927554.0U
Authority: CN
Inventors: 庄梓栩; 葛佳; 杨恒凤; 杨林青; 余炎
Original assignee: Jiangsu Hengyang Metallurgical Technology Co ltd
Current assignee: Jiangsu Hengyang Metallurgical Technology Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-10-20
Anticipated expiration: 2029-11-08

Abstract

The utility model provides a double-layer tube body structure of a conversion tube, which comprises an outer tube and an inner tube arranged in the inner cavity of the outer tube, the double-layer pipe body structure also comprises a transition connecting section arranged below the outer pipe, the upper end of the outer pipe is connected with the outer wall of the inner pipe through a butt joint structure, the side wall of the upper part of the outer pipe is provided with an air outlet communicated with the inner cavity of the outer pipe, the side wall of the lower part of the outer pipe is provided with an air inlet communicated with the inner cavity of the outer pipe, high-temperature gas enters the outer pipe from the air inlet through the coaxial inner pipe and the outer pipe, then the high-temperature gas is discharged from the gas outlet, thereby achieving the purpose of providing heat energy for the hydrogen production reaction in the inner tube, simultaneously the high-temperature gas discharged from the gas outlet can be recycled, therefore, the purposes of energy conservation and consumption reduction are achieved, and the double-layer structure is simple and reliable, has lower cost and is convenient for workers to install and replace.

Description

Double-layer tube body structure of conversion tube

Technical Field

The utility model relates to a chemical industry field especially relates to a double-deck body structure of converter tube.

Background

In the chemical industry, the production of hydrogen is a well-established technology, and hydrogen and carbon dioxide are generally produced by methane and water vapor under the action of a catalyst, heat energy and pressure, and are separated by a separation device.

Methane and steam generally react in the reformer tube to generate hydrogen, and because the hydrogen production reaction is an endothermic reaction, the reformer tube in the prior art generally has a single-layer structure, and provides the heat energy required for the hydrogen production reaction in the reformer tube by heating outside the reformer tube, and the mode requires continuous heating outside the reformer tube, so that the energy consumption is high, and the economic benefit is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that the converter tube among the prior art generally is single layer construction, provides required heat energy for intraductal hydrogen manufacturing reaction through the mode of heating outside the converter tube, and this kind of mode need constantly heat outside the tubes, and the energy consumption is higher, and economic benefits is relatively poor, the utility model provides a double-deck body structure of converter tube solves above-mentioned problem.

The utility model provides a technical scheme that its technical problem adopted is: the double-layer tube body structure of the conversion tube comprises an outer tube and an inner tube arranged in an inner cavity of the outer tube, wherein the outer tube and the inner tube are coaxially arranged; the lower end of the outer pipe is fixedly connected with the upper end of the transition connection section, the upper end of the outer pipe is connected with the outer wall of the inner pipe through a butt joint structure, an air outlet communicated with the inner cavity of the outer pipe is formed in the side wall of the upper portion of the outer pipe, and an air inlet communicated with the inner cavity of the outer pipe is formed in the side wall of the lower portion of the outer pipe.

Further: the butt joint structure comprises a retaining sleeve, the retaining sleeve is arranged on the outer wall of the inner pipe, sealing gaskets are arranged on the upper side and the lower side of the retaining sleeve, and the inner wall of each sealing gasket is connected with the outer wall of the inner pipe in a sealing mode.

Further: the butt joint structure further comprises an expansion joint arranged on the outer side of the retaining sleeve, the lower end of the expansion joint is movably connected with the upper end of the outer pipe, and the upper end of the expansion joint is fixedly connected with the outer wall of the inner pipe.

The beneficial effects of the utility model are that, the utility model relates to a double-deck body structure of converter tube is through setting up coaxial inner tube and outer tube, and high-temperature gas gets into in the outer tube from the air inlet, then discharges from the gas outlet, and then reaches the purpose that provides the heat energy for the hydrogen manufacturing reaction in the inner tube, and the high-temperature gas of gas outlet exhaust simultaneously can recycle to reach energy saving and consumption reduction's purpose, and this kind of double-deck structure is simple reliable, and the cost is lower, and the staff of being convenient for installs and changes.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic structural view of a double-layer tube structure of a reformer tube according to the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

fig. 3 is an enlarged view of B in fig. 1.

In the figure, the device comprises an outer pipe 1, an inner pipe 2, an inner pipe 3, a transition connecting section 5, a retaining sleeve 6, a sealing gasket 7, an expansion joint 8, an air outlet 9 and an air inlet.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present invention includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

As shown in fig. 1, fig. 2 and fig. 3, the present invention provides a double-layer tube structure of a conversion tube, including an outer tube 1 and an inner tube 2 disposed in an inner cavity of the outer tube 1, wherein the outer tube 1 and the inner tube 2 are coaxially disposed, the double-layer tube structure further includes a transition connection section 3 disposed below the outer tube 1, and a lower end of the inner tube 2 is fixedly connected to an upper end of the transition connection section 3; the lower end of the outer tube 1 is fixedly connected with the upper end of the transition connection section 3, the upper end of the outer tube 1 is connected with the outer wall of the inner tube 2 through a butt joint structure, the side wall of the upper portion of the outer tube 1 is provided with an air outlet 8 communicated with the inner cavity of the outer tube 1, and the side wall of the lower portion of the outer tube 1 is provided with an air inlet 9 communicated with the inner cavity of the outer tube 1.

During operation, hydrogen production reaction is gone on in inner tube 2, because hydrogen production reaction is endothermic reaction, through setting up coaxial inner tube 2 and outer tube 1, high-temperature gas gets into in the outer tube 1 from air inlet 9, then discharges from gas outlet 8, and then reaches the purpose of providing the heat energy for hydrogen production reaction in inner tube 2, and the high-temperature gas of gas outlet 8 exhaust can recycle simultaneously to reach energy saving and consumption reduction's purpose.

The butt joint structure comprises a retaining sleeve 5, the retaining sleeve 5 is arranged on the outer wall of the inner pipe 2, sealing gaskets 6 are arranged on the upper side and the lower side of the retaining sleeve 5, the inner wall of each sealing gasket 6 is in sealing connection with the outer wall of the inner pipe 2, the sealing performance of the conversion pipe can be improved by arranging the sealing gaskets 6, the heat insulation effect of the device is improved, and the conversion efficiency of the device is improved.

The butt joint structure further comprises an expansion joint 7 arranged on the outer side of the retaining sleeve 5, the lower end of the expansion joint 7 is movably connected with the upper end of the outer pipe 1, the upper end of the expansion joint 7 is fixedly connected with the outer wall of the inner pipe 2, the expansion joint is also called a compensator, and the expansion joint is arranged between the outer pipe and the inner pipe, so that pipeline deformation caused by thermal elongation or temperature stress when the temperature of the conversion pipe is increased or reduced can be compensated, and the service life of the conversion pipe is prolonged.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a double-deck body structure of converter tube, includes outer tube (1) and sets up inner tube (2) in outer tube (1) inner chamber, its characterized in that: the outer pipe (1) and the inner pipe (2) are coaxially arranged, the double-layer pipe body structure further comprises a transition connecting section (3) arranged below the outer pipe (1), and the lower end of the inner pipe (2) is fixedly connected with the upper end of the transition connecting section (3); the lower extreme of outer tube (1) with the upper end fixed connection of transitional coupling section (3), outer tube (1) upper end with the outer wall of inner tube (2) is connected through butt joint structure, be equipped with on the upper portion lateral wall of outer tube (1) with gas outlet (8) that the outer tube (1) inner chamber is linked together, be equipped with on the lower part lateral wall of outer tube (1) with air inlet (9) that the outer tube (1) inner chamber is linked together.

2. The double-layered tubular structure of a reformer tube as set forth in claim 1, wherein: the butt joint structure comprises a retaining sleeve (5), wherein the retaining sleeve (5) is arranged on the outer wall of the inner pipe (2), sealing gaskets (6) are arranged on the upper side and the lower side of the retaining sleeve (5), and the inner wall of each sealing gasket (6) is connected with the outer wall of the inner pipe (2) in a sealing mode.

3. A double-layered tubular structure of a reformer tube as set forth in claim 2, wherein: the butt joint structure further comprises an expansion joint (7) arranged on the outer side of the retaining sleeve (5), the lower end of the expansion joint (7) is movably connected with the upper end of the outer pipe (1), and the upper end of the expansion joint (7) is fixedly connected with the outer wall of the inner pipe (2).