CN209672914U - A kind of finned tube exchanger - Google Patents

Abstract

The utility model discloses a kind of finned tube exchanger, the finned tube includes round tube, and the soldering of round tube outer surface has high-efficiency fin, and the high-efficiency fin is plain fin, serrated fin, fin with apertures or corrugated fin.High-efficiency fin is perpendicular to round tube axis and in spiral distribution as axis along round tube outer surface equidistantly distributed, or using round tube axis.The utility model is higher compared to traditional fin-tube heat exchanger heat exchange efficiency, and structure type diversification, the processing is simple for fin and round tube.

Description

A kind of finned tube exchanger

Technical field

The utility model relates to Aluminium Radiator technical field, specifically a kind of Novel fin tubular type heat exchanger.

Background technique

Fin-tube heat exchanger is widely used in power, chemical industry, Air-conditioning Engineering and Refrigeration Engineering.Fin-tube heat exchanger Be people during improving pipe type heat transfer face earliest be also most successful discovery.Fin-tube heat exchanger is applicable not only to list Phase fluid, and also have very big value to phase-change heat-exchange.Since structure is limited, the hot edge channel of plate-fin cannot be excessively high, internal It needs fin to support, guarantees internal pressure drops in design, need thicker core, and fin-tube heat exchanger circular tube structure, Internal flow resistance is small, and Core thickness does not have to as plate-fin is so thick.

Finned tube is divided into integrally finned tubes, welding finned tube, high frequency welded fin-tube and machinery by manufacturing process by finned tube Connect finned tube.

Application No. is 201410679033.3, the Chinese invention patent of entitled aluminum finned tube discloses a kind of aluminium wing Piece pipe can be improved heat transfer efficiency by fin machining at S type.But fin needs special mold processing, and fin and pipe are whole Body formed, structure is unique, and heat exchange efficiency is certain.

Application No. is 95207769.8, the Chinese utility model patent of entitled heat exchanging fin tube discloses one kind Heat exchanging fin tube, fin section are U-shaped, and surface is continuous, and the heat transfer efficiency of fin is low.

Summary of the invention

Technical problem to be solved by the utility model is: a kind of finned tube exchanger is provided, and it is easy to process, it is various informative, The heat exchange area and heat exchange efficiency of heat exchanger can be increased simultaneously.

Technical solution of the present invention is accomplished by

A kind of finned tube exchanger, including finned tube, the finned tube include round tube, and the soldering of round tube outer surface has efficient wing Piece, the high-efficiency fin are plain fin, serrated fin, fin with apertures or corrugated fin.

The high-efficiency fin in the shape of a spiral, using the axis of round tube as the continuously distributed outer surface in round tube of axis.

The high-efficiency fin is in long strip, high-efficiency fin described in multi-disc along round tube outer surface circumferential direction equidistantly distributed, and High-efficiency fin is parallel to the axis of round tube.

The high-efficiency fin is annular in shape, and high-efficiency fin described in multi-disc is perpendicular to round tube axis equidistantly distributed outside round tube Surface.

The high-efficiency fin is wrapped in round tube outer surface in cylinder planar.

The finned tube exchanger includes two rows of finned tubes being parallel to each other, and two one group of the finned tube is spaced apart.

The utility model is combined using the high-efficiency fin of different cross section shape from different distribution forms, and round tube is formd The high-efficiency fin heat exchange structure of outer surface.On the other hand, round tube outer surface and high-efficiency fin are connected using soldering in the utility model Mode is connect, connection is simple and reliable, and the mode compared to whole machining round tube fin is more flexible.

Compared with prior art, the high-efficiency fin of different structure can be mechanically wrapped in the utility model On round tube, solder is then placed between high-efficiency fin and round tube, is connected as one the two by way of vacuum brazing.Circle The radiating efficiency that pipe surface increases heat transfer area because of high-efficiency fin to improve.And the specification of fin and round tube can be according to need Designed, designed is wanted, specification is changeable.Multiple rows of mode can be used in finned tube, and outsourcing high-efficiency fin is to meet performance requirement.

Detailed description of the invention

Fig. 1 is plain fin schematic diagram；

Fig. 2 is serrated fin schematic diagram；

Fig. 3 is fin with apertures schematic diagram；

Fig. 4 is corrugated fin schematic diagram；

Fig. 5 is the arrangement schematic diagram that fin is parallel to round tube axis

Fig. 6 is arrangement schematic diagram of the fin perpendicular to round tube axis；

Fig. 7 is the fin schematic diagram in spiral distribution as axis using round tube axis；

Fig. 8 is using the section of Spiral distribution form arrangement as the finned tube schematic diagram of plain fin；

Fig. 9 is that the section arranged in the form of Spiral distribution is Wavelike finned finned tube schematic diagram；

Figure 10 is using the section of Spiral distribution form arrangement as the finned tube schematic diagram of serrated fin；

Figure 11 is single tube radiator schematic diagram；

Figure 12 is double tube radiator schematic diagram；

Figure 13 is to be wrapped in round tube outer surface in cylindrical surface form and fin is the finned tube schematic diagram of saw tooth fin；

Figure 14 is to be wrapped in round tube outer surface in cylindrical surface form and fin is the finned tube schematic diagram of fin with apertures；

Figure 15 fin is parallel to the finned tube cross-sectional view of round tube axis.

Specific embodiment

The invention will be further described with specific embodiment with reference to the accompanying drawing:

The equipment that finned tube processing needs profession, it is convenient to process no plate-fin heat exchanger.But finned tube can pass through Various forms of fins 1 combine the finned tube to form various heat exchange efficiency with round tube 3.Such as fin 1 is processed into interruption, aperture Or waveform, to increase heat exchange area or heat exchange efficiency, wave height, the pitch of waves and the fin type of fin 1 can according to need free choosing It selects, then high-efficiency fin 1 is welded on round tube 3 and improves radiating efficiency by soldering in 3 outer wall of round tube.Round tube 3 can drop Low-heat side resistance, when hot air flowrate is larger in order to guarantee that suitable resistance hot side fin 1 needs are set in air to air heat exchanger It counts higher (for example 6.5mm, water cooling are generally 2mm), the round tube 3 of different-diameter at this moment can be designed, by single or double Row's combination is to meet the requirements.

It as shown in Figure 1 to 4, is the fin section form of 4 kinds of forms, i.e. plain fin, serrated fin, punching respectively Fin or corrugated fin.

The fin distribution form of 3 kinds of forms respectively as shown in Fig. 5~Fig. 7, i.e., fin 1 be parallel to 3 axis of round tube and Along round tube outer surface equidistantly distributed, fin 1 is perpendicular to 3 axis of round tube and equidistantly distributed, and fin 1 is using 3 axis of round tube as axis Line is in spiral distribution.

As shown in figure 8, the combining form used is round tube 3+ plain fin+Spiral distribution, i.e., high-efficiency fin is using straight Fin (section of the plane and high-efficiency fin of crossing round tube axis is plain fin form), and entire high-efficiency fin is in a spiral form Soldering is in 3 outer surface of round tube.

As shown in Figure 9 and Figure 10, be respectively in the form of Spiral distribution arrange section be Wavelike finned finned tube with And using the section of Spiral distribution form arrangement as the finned tube of serrated fin, wherein D indicates round tube diameter；P indicates the pitch of waves；H Indicate fin height；This 3 parameters can change, multiple combinations, flexibly be used for various occasions.Fin 1 passes through solder in figure Piece 2 is connected with round tube 3.

It as is illustrated by figs. 11 and 12, is that the finned tubular radiator of single distribution and the finned tube of double distribution radiate respectively Device, when double distribution finned tube in pairs, parallel interval arrangement.

As shown in figure 13, saw tooth fin is wrapped in round tube outer surface in the form of cylindrical surface.

As shown in figure 14, compared to the fin in Figure 13, this finned tube is punched on fin.

As shown in figure 15, straight formula fin is used, straight formula fin is distributed in the table of round tube 3 in the way of Fig. 5 Face.

Claims (1)

1. a kind of finned tube exchanger, it is characterised in that: including the finned tube that two rows are parallel to each other, two one group of the finned tube It is spaced apart；

The finned tube includes round tube, and the soldering of round tube outer surface has high-efficiency fin, and the high-efficiency fin is plain fin, zigzag Fin, fin with apertures or corrugated fin；

The high-efficiency fin is in long strip, high-efficiency fin described in multi-disc along round tube outer surface circumferential direction equidistantly distributed, and efficiently Fin is parallel to the axis of round tube；Or the high-efficiency fin is annular in shape, high-efficiency fin described in multi-disc is perpendicular to round tube axis etc. Spacing is distributed in round tube outer surface；Or the high-efficiency fin is wrapped in round tube outer surface in cylinder planar.