CN202109809U

CN202109809U - Heat exchanger fin

Info

Publication number: CN202109809U
Application number: CN2011201002275U
Authority: CN
Inventors: 王汉斌; 林崐; 王赛
Original assignee: Guangdong Chigo Air Conditioning Co Ltd
Current assignee: Guangdong Chigo Air Conditioning Co Ltd
Priority date: 2011-04-08
Filing date: 2011-04-08
Publication date: 2012-01-11
Anticipated expiration: 2021-04-08

Abstract

The utility model discloses a heat exchanger fin which comprises a fin body and a plurality of pipe through holes arranged on the fin body; and the side edge of the fin body is a wave-shaped cutting edge. By adopting the wave-shaped cutting edge, the heat exchanger fin can be better matched with the annular edge of a temperature field, so that the temperature on the fin body has less difference and is more uniform, thereby improving the temperature difference of a heat exchanger and improving the heat exchange efficiency. Meanwhile, as the heat exchange efficiency of the single fin is improved, the refrigeration effect of the entire machine is effectively improved, the energy is saved, the consumption is reduced, the consumption of fin materials is reduced, and the cost is reduced.

Description

A kind of heat exchanger fin

Technical field

The utility model relates to the refrigeration technology field of air-conditioning system, particularly a kind of heat exchanger fin.

Background technology

In air-conditioning system, condenser, evaporimeter, compressor and throttling arrangement are four main big parts, if adopt compact, heat exchanger efficiently, the volume and weight of whole device is reduced, and its Energy Efficiency Ratio is greatly improved in the system.

The whole casing fin tube heat exchanger of idle call, its structure is as shown in Figure 1, and cold-producing medium circulates in copper pipe 8, and the air cross-current is crossed fin 1.Copper pipe 8 is arranged with the triangle mode, and fin 1 shape is as shown in Figure 2, and the profile of fin 1 is the rectangle thin slice, is arranged with the poling hole 2 of a plurality of circles on it, and each side of fin 1 is linear and cuts edge 3.As shown in Figure 3, for the disturbance of strengthening air, the heat exchange that strengthens air side, on fin, also have slit 6 sometimes.

The effect of heat exchanger is exactly to be delivered to the air that flows through the pipe outside and fin to the cold of tube refrigerant or heat, and heat exchange both sides mean temperature difference is big more, and its heat exchange effect is good more.The heating surface of air side comprises tube outer surface and fin surface.With the condenser in the refrigeration system is example; The fin surface temperature constantly reduces along the high direction of wing from wing root (poling hole) in the diabatic process; The Temperature Distribution of single pore is as shown in Figure 4 on the fin, and shown in Figure 5 be that the temperature field of single fin in the diabatic process distributes, temperature field 4 distributes ringwise.

Hence one can see that, is usually used in the fin of air-condition heat exchanger at present, and it is cut edge and is straight flange; But the fin temperature field is along the pipe annular spread; This must cause the temperature distributing disproportionation of fin even, as shown in Figure 5, and the some a on the fin limit is very big with the temperature contrast of some b; The heat exchange efficiency of fins at some b place is poor, influences the heat exchange effect of heat exchanger and the Energy Efficiency Ratio of complete machine.

The utility model content

The purpose of the utility model is to overcome the deficiency of prior art, and the heat exchanger fin that a kind of average heat transfer temperature difference is big, heat exchange efficiency is high is provided.

The technical scheme of the utility model is: a kind of heat exchanger fin, comprise fin body and a plurality of poling hole of being located on the fin body, and the side of fin body is that waveform is cut edge.

As a kind of preferred version, said fin body has 4 sides, and two relative long limits are that waveform is cut edge, and two relative minor faces are that linear is cut edge.

As another kind of preferred version, said fin body has 4 sides, and 4 sides are waveform and cut edge.

In order to make fin reach better heat exchange effect, on the said fin body, be arranged in a plurality of polings hole on the same vertical line direction, be provided with a plurality of slits between two adjacent arbitrarily poling holes, a plurality of slits are the venetian blind type combination.

In said a plurality of slit, each slit is the arc shaped structure.

This heat exchanger fin can effectively improve heat exchange efficiency; Its principle is: cut edge because the side of fin body is a waveform, the temperature field on the fin body distributes along the poling hole ringwise, and the annular edge in temperature field and waveform are cut edge and matched; Make that the temperature contrast on the fin body is less; Temperature is comparatively even, thereby improves the temperature difference of heat exchanger, improves heat exchange efficiency.

The utility model has following beneficial effect with respect to prior art:

This heat exchanger fin adopts waveform to cut edge, and can be preferably matches with the annular edge in temperature field, makes that the temperature contrast on the fin body is less, and temperature is comparatively even, thereby improves the temperature difference of heat exchanger, improves heat exchange efficiency.Simultaneously,, therefore also can improve complete machine refrigeration and energy-saving and cost-reducing more effectively, reduce the fin material consumption, reduce cost because the heat exchange efficiency of single fin is improved.

When on this heat exchanger fin, setting up the slit of venetian blind type, can strengthen the disturbance of air better, strengthen the heat exchange of air side, make the heat exchange efficiency of heat exchanger higher.

Description of drawings

Fig. 1 is the structural representation of existing heat exchanger.

Fig. 2 is the structural representation of single fin in the existing heat exchanger.

Fig. 3 is for having the fin structure sketch map in slit in the existing heat exchanger.

Fig. 4 is the Temperature Distribution sketch map in single poling hole on the fin in the existing heat exchanger.

Fig. 5 is the temperature field distribution schematic diagram on the single fin in the existing heat exchanger.

Fig. 6 is the structural representation of this heat exchanger fin.

Fig. 7 is the temperature field distribution schematic diagram on this heat exchanger fin.

Structural representation when Fig. 8 has the slit for this heat exchanger fin.

The specific embodiment

Below in conjunction with embodiment and accompanying drawing, the utility model is done further to specify, but the embodiment of the utility model is not limited thereto.

Embodiment 1

A kind of heat exchanger fin of present embodiment, its structure is as shown in Figure 6, comprises fin body 9 and a plurality of poling holes of being located on the fin body 92, and the side of fin body 9 is that waveform cuts edge 5.

As a kind of preferred version, fin body 9 has 4 sides, and wherein, two relative long limits are that waveform is cut edge, and two relative minor faces are that linear is cut edge.

As another kind of preferred version, fin body 9 has 4 sides, and 4 sides are waveform and cut edge.

This heat exchanger fin can effectively improve heat exchange efficiency, and its principle is: as shown in Figure 7, because being waveform, the side of fin body 9 cuts edge 5; Temperature field 4 on the fin body 9 distributes along the poling hole ringwise, and the annular edge in temperature field 4 and waveform are cut edge and matched, and the temperature difference that therefore c point and d are ordered among the figure is less; Make that the temperature contrast on the fin body 9 is less; Temperature is comparatively even, thereby improves the temperature difference of heat exchanger, improves heat exchange efficiency.

Embodiment 2

A kind of heat exchanger fin of present embodiment, its structure is as shown in Figure 8, compares with embodiment 1; Its difference is; In order to make fin reach better heat exchange effect, on fin body 9, be arranged in a plurality of polings hole 2 on the same vertical line direction; Be provided with a plurality of slits 7 between two adjacent arbitrarily poling holes 2, a plurality of slits are the venetian blind type combination; Wherein, in a plurality of slits, each slit 7 is the arc shaped structure.

As stated, can realize preferably that just the utility model, the foregoing description are merely the preferred embodiment of the utility model, be not the practical range that is used for limiting the utility model; Be that all equalizations of being done according to the utility model content change and modification, all contained by the utility model claim scope required for protection.

Claims

1. a heat exchanger fin comprises fin body and a plurality of poling hole of being located on the fin body, it is characterized in that, the side of fin body is that waveform is cut edge.

2. according to the said a kind of heat exchanger fin of claim 1, it is characterized in that said fin body has 4 sides, two relative long limits are that waveform is cut edge, and two relative minor faces are that linear is cut edge.

3. according to the said a kind of heat exchanger fin of claim 1, it is characterized in that said fin body has 4 sides, 4 sides are waveform and cut edge.

4. according to the said a kind of heat exchanger fin of claim 1, it is characterized in that, on the said fin body, be arranged in a plurality of polings hole on the same vertical line direction, be provided with a plurality of slits between two adjacent arbitrarily poling holes, a plurality of slits are the venetian blind type combination.

5. according to the said a kind of heat exchanger fin of claim 4, it is characterized in that in said a plurality of slits, each slit is the arc shaped structure.