CN201514143U

CN201514143U - Fin of H-shaped fin heat exchange tube

Info

Publication number: CN201514143U
Application number: CN2009200421113U
Authority: CN
Inventors: 黄达其
Original assignee: ZHANGJIAGANG EAST CHINA POWER STATION BOILER PARTS MANUFACTURING Co Ltd
Current assignee: ZHANGJIAGANG EAST CHINA POWER STATION BOILER PARTS MANUFACTURING Co Ltd
Priority date: 2009-03-23
Filing date: 2009-03-23
Publication date: 2010-06-23
Anticipated expiration: 2019-03-23

Abstract

The utility model discloses a fin of an H-shaped fin heat exchange tube which can improve the rate of the welding area of the fin on the heat exchange tube, which comprises a fin main body, wherein one side of the fin main body is provided with an arc groove which is matched with a heat exchange tube, and the surface of the arc groove is provided with a waveform tooth. Since the surface of the arc groove is provided with the waveform tooth, the fuse length of the fin on the outer surface of the heat exchange tube is increased, the rate of the welding area of the fin on the heat exchange tube can be greatly improved, the fuse between the fin and the heat exchange tube can be effectively ensured, the heat resistance can be reduced, and the heat exchange efficiency can be improved; in addition, the fin is free from the accumulation phenomenon of the welding slag, and the surface of the fin is very beautiful.

Description

Fin on the H type fin heat exchanger tube

Technical field

The utility model relates to H type fin heat exchanger tube, refers more particularly to the fin on the H type fin heat exchanger tube.

Background technology

As shown in Figure 1, H type fin heat exchanger tube, its structure comprises: heat exchanger tube 2 and be arranged on many to fin 1 on the heat exchanger tube 2.This heat exchanger tube is extended surface well, adopts that the various heat exchangers of this heat exchanger tube assembling have that heat exchange efficiency is higher, flow resistance is less, dust stratification is few, wearing and tearing are little, in light weight, advantage such as volume is little.But present this H type fin heat exchanger tube because the solder side of fin 1 and heat exchanger tube 2 is smooth curved surfaces, makes that the rate of deposition between fin 1 and the heat exchanger tube 2 is poor, thermal resistance is bigger, influences heat exchange efficiency; And the poor quality of welding, welding slag is deposited on the fin 1, directly influences presentation quality.

The utility model content

Technical problem to be solved in the utility model is: the fin on a kind of H type fin heat exchanger tube that improves with the rate of deposition of heat exchanger tube is provided.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the fin on the H type fin heat exchanger tube comprises: the fin body, and a side of fin body offers the deep-slotted chip breaker that matches with heat exchanger tube, and the surface of deep-slotted chip breaker is provided with wave tooth.

The profile of tooth indentation of described wave tooth, and tooth pitch all equates.

The beneficial effects of the utility model are: this fin described in the utility model, owing to be provided with wave tooth on the surface of deep-slotted chip breaker, increased the fusion length of fin and heat exchange pipe external surface, improved the rate of deposition of itself and heat exchanger tube greatly, guaranteed the fusion of fin and heat exchanger tube effectively, reduce thermal resistance, improved heat exchange efficiency; In addition, the phenomenon that has not also had welding slag to pile up on the fin, the surface is very attractive in appearance.

Description of drawings

Fig. 1 is the structural representation of the H type fin heat exchanger tube described in the background technology;

Among the figure: 1, fin, 2, heat exchanger tube.

Fig. 2 is the structural representation of the fin on the H type fin heat exchanger tube described in the utility model;

Fig. 3 is a pair of fin shown in Figure 2 and the fit structure schematic diagram of heat exchanger tube;

Fig. 4 is the structural representation that is welded with many H type fin heat exchanger tubes to the described fin of Fig. 2;

Among Fig. 2 to Fig. 4: 1, fin, 11, the fin body, 12, deep-slotted chip breaker, 13, wave tooth, 2, heat exchanger tube.

The specific embodiment

Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.

As shown in Figure 2, fin on the H type fin heat exchanger tube described in the utility model, comprise: fin body 11, a side of fin body 11 offers the deep-slotted chip breaker 12 that matches with heat exchanger tube 2---and referring to shown in Figure 3, the surface of deep-slotted chip breaker 12 is provided with the jagged wave tooth 13 that tooth pitch equates.

During actual welding, can adopt the method for flash of light electric resistance welding, many fins 1 to as shown in Figure 2 are welded on the heat exchanger tube 2---referring to shown in Figure 3, and impose thrust simultaneously by the outside and guarantee that fin 1 fuses together with the outer surface of pipe 2 well, forms H type fin heat exchanger tube as shown in Figure 4 at every pair of fin 1.The thermal resistance of this heat exchanger tube is little, the heat transfer efficiency height.

Claims

1.H the fin on the type fin heat exchanger tube comprises: the fin body, a side of fin body offers the deep-slotted chip breaker that matches with heat exchanger tube, it is characterized in that: the surface of described deep-slotted chip breaker is provided with wave tooth.

2. the fin on the H type fin heat exchanger tube as claimed in claim 1 is characterized in that: the profile of tooth indentation of described wave tooth, and also tooth pitch all equates.