CN217330859U

CN217330859U - Inner petal fin heat exchange tube for efficiently enhancing heat transfer

Info

Publication number: CN217330859U
Application number: CN202220050263.3U
Authority: CN
Inventors: 张平; 卢于亮; 林元加; 王维; 刘满心
Original assignee: Hubei Defeng Heat Exchanger Co ltd
Current assignee: Hubei Defeng Heat Exchanger Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-08-30
Anticipated expiration: 2032-01-10

Abstract

The utility model provides a high-efficient interior petal fin heat exchange tube of intensive heat transfer relates to heat exchange tube technical field, the female joint comprises an outer tube, the inner wall and the first petal fin of outer tube support tightly, a plurality of first petal fin is the annular setting with the center of outer tube, a plurality of first petal fin passes through second petal fin end to end, first petal fin is the U-shaped setting. The utility model discloses an interior petal fin heat exchange tube is good with screwed pipe, the heat transfer performance is compared to the horizontal channel-section steel, need not process the outer tube, manufacturing process is easy, and is with low costs, it has mainly increased intraductal side heat transfer, inboard fin is higher, the heat transfer area of intensity is big, heat transfer area after increasing the inner fin is than not having the big of fin, the petal fin pulls out through special mould, but standardized production manufacturing is easy, long service life, inboard petal fin stretches into intraductal back, it is inseparable with the fin laminating through a special technology messenger pipe, heat transfer effect is high.

Description

Inner petal fin heat exchange tube for efficiently enhancing heat transfer

Technical Field

The utility model relates to a heat exchange tube technical field particularly, relates to a high-efficient interior petal fin heat exchange tube of reinforceing heat transfer.

Background

In some heat exchangers, a heat exchange tube is commonly used, which is one of the elements of the heat exchanger, placed inside the cylinder, for the exchange of heat between the two media. Has high thermal conductivity and good isothermal property. It is a device that can rapidly transfer heat energy from one point to another, and there is almost no heat loss, so it is called a heat-transfer superconductor, whose thermal conductivity is thousands times that of copper, and commonly used materials are carbon steel, low alloy steel, stainless steel, copper-nickel alloy, aluminum alloy, titanium, etc. There are also some non-metallic materials such as graphite, ceramics, teflon, etc. The design should be based on working pressure, temperature and medium corrosivity. The heat exchanger is mainly applied to the fields of heat exchangers in industries such as electric power, ships, petrochemical industry, metallurgy, engineering machinery, electronics, communication, motors, generators and the like, and can also be applied to other products.

Most of the existing heat exchangers adopt light pipes or threaded pipes, corrugated pipes or transverse grooved pipes as heat transfer enhancement heat exchange pipes, and mainly enhance the heat exchange of media outside the pipes. The light pipe and the threaded pipe are used as heat exchange pipes, and the outer side surface of the light pipe is usually rolled into a threaded shape, which is the most commonly used heat exchanger and has no strengthening effect on heat transfer.

There are a number of problems and disadvantages with this construction: the light pipe is adopted as the heat exchange pipe, so that the heat transfer effect is poor. The cold medium and the hot medium exchange heat on two sides of the heat exchange tube, the heat transfer surface is smooth, no turbulent flow is generated to the fluid, and the heat transfer effect is poor. Meanwhile, the light pipe does not enhance and increase the heat exchange area, and the heat transfer efficiency is low. The threaded pipe is used as a heat exchange pipe, and the heat exchange area after the fins are increased is 2-3 times larger than that of a light pipe. Although the heat exchange area is increased, the heat exchange area on the outer surface of the tube is only increased, and the heat exchange area in the tube is not increased. Therefore, the threaded pipe strengthens the heat exchange of the medium outside the pipe, and does not strengthen the heat exchange of the medium inside the pipe. The corrugated pipe or the transverse groove pipe is used as a heat exchange pipe, the heat exchange area inside and outside the pipe is increased, but after the pipe is processed, the damage to the pipe wall is large, the processing technology is difficult, and particularly, the processing of a material with high strength is more difficult. And is costly. Therefore, an inner petal fin heat exchange tube with high heat transfer enhancement efficiency is provided to solve the problems encountered in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a high-efficient interior petal fin heat exchange tube of reinforceing heat transfer can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a high-efficient internal petal fin heat exchange tube of reinforceing heat transfer, includes the outer tube, the inner wall and the first petal fin of outer tube support tightly, a plurality of first petal fin is annular setting with the center of outer tube, a plurality of first petal fin passes through second petal fin end to end, first petal fin is the U-shaped setting.

Preferably, a second through hole is formed in the middle of the outer pipe, and a third through hole is formed in the second through hole.

Preferably, the second through hole is communicated with a third through hole, and the third through hole is arranged in a U shape.

Preferably, a first through hole is further formed in the outer tube, and the first through hole is located between two adjacent first petal fins.

Preferably, the second petal fins are arranged in a semi-ring shape, and the plurality of second petal fins are annularly arranged around the center of the outer tube.

Compared with the prior art, the utility model discloses following beneficial effect has:

compared with a threaded pipe and a transverse channel steel, the heat exchange pipe with the inner petal fins has good heat transfer performance, does not need to process the outer pipe, and has easy manufacturing process and low cost. The utility model discloses beneficial effect has:

(1) the heat transfer effect is good, and the heat transfer at the inner side of the pipe is mainly increased. The inner side fins are higher, the heat exchange area of the strength is large, the heat exchange area after the inner fins are increased is larger than that without the fins, and the heat exchange of the inner side medium is mainly enhanced.

(2) The manufacturing process is simple and does not need machining. The inner petal fin is pulled out through a special die, standard serial production can be carried out, the manufacturing is easy, and the service life is long.

(3) After the inner petal fins extend into the tube, the tube and the fins are tightly jointed through a special process, the reinforced area is large, and the heat transfer effect is high. Material can be saved.

Drawings

Fig. 1 is a schematic view of the overall structure of an inner petal fin heat exchange tube for high-efficiency heat transfer enhancement of the present invention;

FIG. 2 is a schematic view of a cross-sectional partial structure of an efficient heat transfer enhanced inner petal fin heat exchange tube A-A;

fig. 3 is the utility model relates to a first petal fin and second petal fin connection structure sketch of high-efficient interior petal fin heat exchange tube of intensive heat transfer.

In the figure: 1. an outer tube; 2. a first petal fin; 3. a second petal fin; 4. a first through hole; 5. a second through hole; 501. and a third through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Examples

As shown in figures 1 to 3, an efficient heat transfer enhancement type inner petal fin heat exchange tube comprises an outer tube 1, wherein the inner wall of the outer tube 1 is tightly abutted to first petal fins 2, the first petal fins 2 of a plurality of are annularly arranged with the center of the outer tube 1, the first petal fins 2 of a plurality of are connected end to end through second petal fins 3, and the first petal fins 2 are in U-shaped arrangement.

More specifically, the middle portion of the outer tube 1 is provided with a second through hole 5, and the inside of the second through hole 5 includes a third through hole 501. The second through hole 5 is communicated with the third through hole 501, and the third through hole 501 is arranged in a U shape. It should be noted that the second through hole 5 is formed by annularly combining a plurality of second petal fins 3, and a third through hole 501 is formed between the second petal fins 3 and the first petal fins 2, wherein the radius of the inner ring of the second petal fins 3 is 0.6mm, and the diameter of the first petal fins 2 is 1.6 mm.

More specifically, the inner part of the outer tube 1 is further provided with a first through hole 4, and the first through hole 4 is located between two adjacent first petal fins 2. The second petal fin 3 is semi-ring set, and a plurality of second petal fin 3 is ring set with the center of outer tube 1.

It should be noted that the product mainly comprises an outer tube 1, first petal fins 2 and second petal fins 3, an outer surface is a light pipe with a circular cross section, and the first petal fins 2 and the second petal fins 3 of the outer tube 1 form petal-shaped fins. The first petal-shaped fins 2 and the second petal-shaped fins 3 form petal-shaped fins which are pulled out through a special die. After the petal-shaped fins formed by the first petal fins 2 and the second petal fins 3 extend into the tube, the inner wall of the outer tube 1 is tightly attached to the fins through a special process. The number of the petals of the fin is 5-12, and the scheme only shows 7 petals. The outer tube material can be copper, carbon steel, stainless steel. The petal-shaped fin materials formed by the first petal fins 2 and the second petal fins 3 are aluminum and copper.

The working principle of the inner petal fin heat exchange tube for efficiently enhancing heat transfer is as follows:

compared with a threaded pipe and a transverse channel steel, the heat exchange pipe with the inner petal fins has good heat transfer performance, does not need to process the outer pipe, and has easy manufacturing process and low cost. The technical problem that this patent was solved has: the heat transfer effect is good, and the heat transfer at the inner side of the pipe is mainly increased. The inner side fins are higher, the heat exchange area of the strength is large, the heat exchange area after the inner fins are increased is larger than that without the fins, and the heat exchange of the inner side medium is mainly enhanced.

The manufacturing process is simple and does not need machining. The inner petal fin is pulled out through a special die, standard serial production can be carried out, the manufacturing is easy, and the service life is long. After the inner petal fins extend into the tube, the tube and the fins are tightly attached through a special process, the strengthening area is large, and the heat transfer effect is high. Material can be saved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high-efficient interior petal fin heat exchange tube of reinforceing heat transfer, includes outer tube (1), its characterized in that: the inner wall of the outer tube (1) is tightly abutted to the first petal fins (2), the first petal fins (2) are annularly arranged at the center of the outer tube (1), the first petal fins (2) are connected end to end through the second petal fins (3), and the first petal fins (2) are arranged in a U shape.

2. The heat exchange tube with the inner petal fin for high-efficiency heat transfer enhancement as claimed in claim 1, wherein: the middle part of outer tube (1) is provided with second through-hole (5), the inside of second through-hole (5) includes third through-hole (501).

3. The heat exchange tube with the inner petal fin for high-efficiency heat transfer enhancement as claimed in claim 2, wherein: the second through hole (5) is communicated with the third through hole (501), and the third through hole (501) is arranged in a U shape.

4. The heat exchange tube with the inner petal fin for high-efficiency heat transfer enhancement as claimed in claim 1, wherein: the inner part of the outer tube (1) is further provided with a first through hole (4), and the first through hole (4) is located between two adjacent first petal fins (2).

5. The heat exchange tube with the inner petal fin for high-efficiency heat transfer enhancement as claimed in claim 1, wherein: the second petal fins (3) are arranged in a semi-ring mode, and the second petal fins (3) are arranged in a ring mode by using the center of the outer pipe (1).