Finned tube of gasifier on air temperature type carbon dioxide gasification pry

Abstract

The utility model relates to the technical field of a carbon dioxide gasification pry, and discloses a finned tube of a gasifier on an air temperature type carbon dioxide gasification pry, which comprises a central tube and heat exchange fins. The heat exchange fins are fixedly arranged on the outer edge of the central pipe in a circumferential array mode, extend outwards and are connected with the central pipe through laser welding or electron beam welding, so that the gasification efficiency is improved. An inner side channel of the central pipe is divided into an inner channel and an outer channel by an inner pipe, an inner shaftless spiral spoiler is arranged in the inner channel, and an outer shaftless spiral spoiler is arranged in the outer channel, so that the turbulence degree and the heat exchange effect are improved. Grooves are evenly distributed in the two faces of each heat exchange fin to increase the heat exchange area and the heat conduction rate. The two ends of the inner pipe are connected with the central pipe through connecting rods which are annularly arranged at equal intervals, firm connection is ensured, and leakage is reduced. And the external thread interface ensures the sealing performance of the end cover. The design of the finned tube can improve the gasification efficiency of carbon dioxide, reduce energy consumption and improve the reliability and stability of equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbon dioxide gasification skids, and particularly relates to a finned tube of a vaporizer on an air-cooled carbon dioxide gasification skid. Background Art

[0002] The star-shaped finned tube plays an important role in the vaporizer of the air-cooled carbon dioxide gasification skid, because its design directly affects the heat exchange efficiency of the vaporizer and the stability of the gasification process.

[0003] Traditional finned tubes usually adopt flat fins and hollow tubes. The heat exchange efficiency of traditional flat finned tubes is relatively low. The contact area between the finned tube with a hollow tube structure and the fluid is limited, and the fluid is prone to form laminar flow when flowing in the tube. The heat transfer coefficient of laminar flow is low, resulting in poor overall heat exchange effect.

[0004] In order to solve the problem of poor heat exchange effect of traditional finned tubes, a finned tube of a vaporizer on an air-cooled carbon dioxide gasification skid is proposed, which adopts turbulator fins to increase the turbulence degree of the fluid and improve the heat transfer coefficient. Content of the Utility Model

[0005] The present invention aims to solve the technical problem of poor heat exchange effect of the finned tube in the above-mentioned prior art.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] A finned tube of a vaporizer on an air-cooled carbon dioxide gasification skid includes a central tube and heat exchange fins. The channel inside the central tube is divided into an inner channel and an outer channel by an inner tube. An inner shaftless spiral turbulator is arranged in the inner channel, and an outer shaftless spiral turbulator is arranged in the outer channel; the heat exchange fins are circumferentially and arrayedly arranged and fixed on the outer edge of the central tube and extend outward. Grooves for increasing the heat exchange area and heat conduction rate are evenly distributed on both sides of the heat exchange fins.

[0008] By arranging heat exchange fins on the outer edge of the central tube and making grooves evenly distributed on both sides thereof, the heat exchange area can be significantly increased and the heat exchange efficiency can be improved. The groove design evenly distributed on both sides of the heat exchange fins can improve the heat conduction rate, enabling heat to be transferred from the fins to the fluid more quickly.

[0009] Since there are turbulators in both the inner channel and the outer channel, the frosting and condensation phenomena on the fin surface can be effectively reduced, and the stable operation of the equipment can be improved. Through these design improvements, the finned tube of the vaporizer on the air-cooled carbon dioxide gasification skid can significantly improve the gasification efficiency of carbon dioxide, reduce energy consumption, and improve the reliability and stability of the equipment.

[0010] Preferably, the heat exchange fins and the central tube are connected by laser welding or electron beam welding.

[0011] Preferably, both ends of the inner tube are connected to the central tube through a number of connecting rods arranged in an annular and equidistant manner.

[0012] Preferably, both ends of the connecting rod are welded to the outer wall of the inner tube and the inner wall of the central tube respectively.

[0013] Preferably, an asymmetrically arranged spiral groove is formed on the outer surface of the inner tube.

[0014] The spiral groove formed on the outer surface of the inner tube can further improve the heat exchange effect of the inner tube, increase the contact area between the fluid and the inner tube wall, and improve the heat conduction efficiency.

[0015] Preferably, both ends of the inner shaftless spiral spoiler are welded to the inner wall surfaces at both ends of the inner tube.

[0016] Preferably, both ends of the outer shaftless spiral spoiler are welded to the connecting rods at both ends of the outer channel.

[0017] Preferably, the groove is a straight groove or a corrugated groove to increase the heat exchange area and the heat conduction rate.

[0018] Preferably, external thread interfaces for threaded docking with the end covers are provided at both ends of the central tube.

[0019] Compared with the prior art, the technical effects and advantages of the present utility model are as follows:

[0020] For the finned tube of the vaporizer on the air-temperature type carbon dioxide gasification skid, the high energy density of laser or electron beam is used to precisely weld the heat exchange fins to the central tube, achieving gapless connection and reducing heat loss. The inner tube divides the inner channel of the central tube into two areas, and different types of spiral spoilers are installed respectively to improve the heat exchange efficiency. An asymmetric spiral groove is formed on the outer surface of the inner tube to change the fluid flow direction, increase the contact area between the fluid and the tube wall, and improve the heat conduction efficiency. Grooves are formed on the heat exchange fins to increase the heat exchange area and the heat conduction rate, accelerating heat transfer. External thread interfaces are provided at both ends of the central tube for threaded docking with the end covers to ensure the sealing of the end covers and prevent dust and sundries from entering.

[0021] Through precise welding and the design of spiral spoilers, the heat exchange area is increased, the heat conduction rate is improved, and thus the heat exchange efficiency is enhanced. By improving the heat exchange efficiency, energy consumption can be reduced and operating costs can be decreased. Precise welding and stable spoiler design reduce the possibility of leakage and improve the reliability of the equipment. The spiral spoilers increase the fluid turbulence degree, improve the fluid flow, and enhance the heat exchange effect. Due to the spoiler design, frosting and condensation on the fin surface are reduced, improving the stable operation of the equipment. The equidistant arrangement and welding design of the connecting rods simplify the manufacturing process and also facilitate on-site installation.

[0022] Through these design improvements, the finned tubes on the air-cooled carbon dioxide gasification skid have achieved remarkable technical effects in improving gasification efficiency, reducing energy consumption, and enhancing the reliability and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present utility model;

[0024] Figure 2 for the present utility model Figure 1 front view;

[0025] Figure 3 is an exploded view of the present utility model.

[0026] Figure 4 is a schematic structural diagram of the heat exchange fins of the present utility model;

[0027] Figure 5 is a schematic structural diagram of the inner tube of the present utility model.

[0028] In the figure: 1, central tube; 2, inner tube; 3, inner channel; 4, outer channel; 5, inner shaftless spiral turbulator; 6, outer shaftless spiral turbulator; 7, heat exchange fins; 8, groove; 9, connecting rod; 10, spiral groove; 11, external thread interface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] The following is a further detailed description of the present application in conjunction with the attached Figures 1-5 drawings,

[0031] The embodiments of the present application disclose a finned tube of a vaporizer on an air-cooled carbon dioxide gasification skid, which includes a central tube 1 and heat exchange fins 7. The heat exchange fins 7 are arranged in a circumferential array and fixed on the outer edge of the central tube 1 and extend outward. The heat exchange fins 7 are connected to the central tube 1 by laser welding or electron beam welding; adopting these high-precision welding technologies can ensure high connection strength, good sealing performance, reduce heat loss, and improve gasification efficiency between the heat exchange fins 7 and the central tube 1.

[0032] The channel inside the central pipe 1 is divided into an inner channel 3 and an outer channel 4 by the inner pipe 2. An inner shaftless spiral spoiler 5 is arranged in the inner channel 3, and an outer shaftless spiral spoiler 6 is arranged in the outer channel 4. The two ends of the inner pipe 2 are respectively connected to the central pipe 1 through a number of connecting rods 9 arranged in an annular and equally spaced manner. The connecting rods 9 can evenly distribute the pressure between the inner pipe 2 and the central pipe 1, maintaining the stability of the structure. At the same time, it is convenient for manufacturing and installation. The two ends of the connecting rods 9 are respectively welded to the outer wall of the inner pipe 2 and the inner wall of the central pipe 1. The design of welding the two ends of the connecting rods 9 to the outer wall of the inner pipe 2 and the inner wall of the central pipe 1 respectively can ensure the firmness of the connection, reduce the possibility of leakage, and improve the reliability of the equipment;

[0033] Asymmetrically arranged spiral grooves 10 are provided on the outer surface of the inner pipe 2. The spiral grooves 10 provided on the outer surface of the inner pipe 2 can further improve the heat exchange effect of the inner pipe 2, increase the contact area between the fluid and the wall of the inner pipe 2, and improve the heat conduction efficiency; By welding the two ends of the inner shaftless spiral spoiler 5 to the inner wall surfaces at both ends of the inner pipe 2, it can ensure the stable operation of the spoiler during the gasification process and prevent it from falling off due to vibration. Welding the two ends of the outer shaftless spiral spoiler 6 to the connecting rods 9 at both ends of the outer channel 4 can ensure the stability of the spoiler during long-term operation and reduce the structural damage caused by wear.

[0034] Grooves 8 for increasing the heat exchange area and heat conduction rate are evenly distributed on both sides of the heat exchange fins 7. The grooves 8 are straight grooves or corrugated grooves. To increase the heat exchange area and heat conduction rate, external thread interfaces 11 for threaded docking with the end covers are provided at both ends of the central pipe 1. The external thread interfaces 11 can ensure the sealing performance of the end covers, prevent dust and other sundries in the external environment from entering the inside of the vaporizer, and affect the gasification efficiency and the service life of the equipment.

[0035] The inner shaftless spiral spoiler 5 arranged in the inner channel 3 of the finned tube of the vaporizer on the air-cooled carbon dioxide gasification skid can increase the turbulence degree of the fluid and improve the heat exchange effect between the fluid and the wall of the inner pipe 2. The outer shaftless spiral spoiler 6 arranged in the outer channel 4 can also increase the turbulence degree of the fluid and improve the heat exchange effect between the fluid and the heat exchange fins 7. The design of the inner shaftless spiral spoiler 5 and the outer shaftless spiral spoiler 6 can improve the fluid flow, enhance the turbulent flow of the fluid in the channel, and thus improve the heat exchange efficiency.

[0036] By arranging the heat exchange fins 7 on the outer edge of the central pipe 1 and making grooves 8 evenly distributed on both sides thereof, the heat exchange area can be significantly increased and the heat exchange efficiency can be improved. The design of the grooves 8 evenly distributed on both sides of the heat exchange fins 7 can improve the heat conduction rate, enabling the heat to be transferred from the fins to the fluid faster.

[0037] Since there are turbulators in both the inner channel 3 and the outer channel 4, the frosting and condensation phenomena on the fin surface can be effectively reduced, improving the stable operation of the equipment. Through these design improvements, the finned tubes of the vaporizer on this air-temperature type carbon dioxide gasification skid can significantly improve the gasification efficiency of carbon dioxide, reduce energy consumption, and improve the reliability and stability of the equipment.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A finned tube of a vaporizer on an air-temperature type carbon dioxide vaporization skid, characterized in that, Comprising: A central tube (1), the channel inside the central tube (1) is separated into an inner channel (3) and an outer channel (4) by an inner tube (2), an inner shaftless spiral spoiler (5) is arranged in the inner channel (3), and an outer shaftless spiral spoiler (6) is arranged in the outer channel (4); Heat exchange fins (7), the heat exchange fins (7) are arranged in a circumferential array and fixed on the outer edge of the central tube (1) and extend outward, and grooves (8) for increasing the heat exchange area and heat conduction rate are evenly distributed on both sides of the heat exchange fins (7).

2. The finned tube of the vaporizer on the air-cooled carbon dioxide gasification skid according to claim 1, characterized in that: The heat exchange fins (7) are connected to the central tube (1) by laser welding or electron beam welding.

3. The finned tube of the vaporizer on the air-cooled carbon dioxide gasification skid according to claim 1, wherein: Both ends of the inner tube (2) are connected to the central tube (1) through a number of connecting rods (9) arranged in an annular and equidistant manner.

4. The finned tube of the vaporizer on an air-cooled carbon dioxide vaporization skid according to claim 3, characterized in that: Both ends of the connecting rod (9) are welded to the outer wall of the inner tube (2) and the inner wall of the central tube (1).

5. The finned tube of the vaporizer on the air-cooled carbon dioxide gasification skid according to claim 1, characterized in that: An asymmetrically arranged spiral groove (10) is provided on the outer surface of the inner tube (2).

6. The finned tube of the vaporizer on the air-cooled carbon dioxide gasification skid according to claim 1, characterized in that: Both ends of the inner shaftless spiral spoiler (5) are welded to the inner wall surfaces at both ends of the inner tube (2).

7. The finned tube of the vaporizer on the air-cooled carbon dioxide vaporization skid according to claim 1, characterized in that: Both ends of the outer shaftless spiral spoiler (6) are welded to the connecting rods (9) at both ends of the outer channel (4).

8. The finned tube of the vaporizer on the air-cooled carbon dioxide gasification skid according to claim 1, wherein: The groove (8) is a straight groove or a corrugated groove.

9. The finned tube of the vaporizer on the air-cooled carbon dioxide gasification skid according to claim 1, characterized in that: Both ends of the central tube (1) are provided with external thread interfaces (11) for threaded docking with end caps.

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