CN100380063C

CN100380063C - Superfine pipeline heat exchanger with different radiating fin spacings

Info

Publication number: CN100380063C
Application number: CNB2003101068499A
Authority: CN
Inventors: 吴世基; 吴世允; 高喆洙; 史容澈; 长东延
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2003-10-30
Filing date: 2003-10-30
Publication date: 2008-04-09
Anticipated expiration: 2023-10-30
Also published as: CN1611861A

Abstract

The present invention provides a heat exchanger of a superfine pipeline, of which the gaps of radiating fins are different. The present invention is characterized in that the heat exchanger is composed of the following components: a hollow level collection pipe, a plurality of vertical refrigeration agent pipes and radiating fins, wherein refrigeration agents can flow through the hollow level collection pipe; the vertical refrigeration agent pipes are inserted in the level collection pipe, so that the refrigeration agents which flow in the level collection pipe can be distributed; the radiating fins are arranged among the refrigeration agent pipes; installation intervals among the radiating fins are different. The present invention can achieve the following the effects that condensed water flows from the upper parts of the refrigeration agent pipes can be drained swimmingly, the loss of air pressure of air which flows under the action of a fan is reduced, and heat conduction quantity can be avoided from reducing.

Description

The interval of fin do the ultra-fine pipeline thermal interchanger that has nothing in common with each other

Technical field

The present invention relates to the mounting structure of the fin that the condensed water that condenses in the surface of fin can be discharged smoothly in a kind of ultra-fine pipeline thermal interchanger (Micro Channel Heat Exchanger).

Background technology

Fig. 1 is the side view of the outward appearance of heat exchanger, and Fig. 2 is the exploded view of respectively forming structure of heat exchanger, and Fig. 3 is the profile of the arm among Fig. 2.

Can learn that existing heat exchanger is by constituting with the lower part with reference to above-mentioned accompanying drawing, that is: be positioned at upper header 2 corresponding to the top of lower header 1; Several arms 3 between above-mentioned upper header 2 and lower header 1; Be formed on the fin 6 between above-mentioned each arm 3.In general, in order to improve heat exchanger effectiveness, the fin of sheet material shape is housed on the outer surface that the arm that refrigeration machine flows through is arranged of heat exchanger, can realizes heat exchange to greatest extent by this structure.Above-mentioned lower header 1 cylindrical shape, its inside is hollow, a side that has constituted the outer peripheral portion of its outward appearance has formed several and has been used for inserting and the fixing header aperture 4 of arm 3, and these header aperture 4 along the length direction of lower header 1 at a distance of identical distance.

Have the shape identical with upper header 2 that above-mentioned lower header 1 is positioned at its top accordingly here, with above-mentioned lower header 1.Above-mentioned each arm 3 is separately fixed in above-mentioned each header aperture 4 along the two ends of its length direction, thereby above-mentioned each arm 3 is arranged side by side along the length direction of collector 1,2.

The face that moving air couples together the axis on the length direction of two collectors 1,2 relatively keeps certain ground, angle of inclination to flow, thereby air can flow through the gap of each arm 3 and two collectors 1,2.Above-mentioned arm 3 has certain length, thickness and width, wherein length is meant its distance between the two ends on two collectors 1,2 of being fixed on, thickness be meant its with the flow direction of moving air keep distance on the vertical direction, width be meant it with the direction of the flow direction keeping parallelism of moving air on distance.Above-mentioned arm 3 is at right angles tetragonal tabular, and it has the width and the very thin thickness that can be inserted in two collectors 1,2, and its inside has formed the pipeline (channel) 5 of several hollows.

In addition, above-mentioned each arm 3 is being fixed on two collectors 1,2 with the mode of the flow direction keeping parallelism of moving air on the width with each arm 3.Several pipelines 5 that form on above-mentioned each arm 3 have small sectional area on the direction vertical with the length direction of arm 3, length direction along arm 3 then has certain length, and they are arranged in proper order along the flow direction of moving air.

Be fixed on two collectors 1,2 owing to have the both-side ends of the arm 3 of said structure, thereby above-mentioned arm 3 is connected with the hollow spaces that form in collector 1,2 inside.And, can make the space that moving air flows through and a plurality of fin 6 have been installed in order to form in the gap of above-mentioned each arm 3.Be above-mentioned a plurality of fin 6 owing to be the tabular of very thin thickness, so be installed between each arm 3 with can being bent into several " it " fonts.Though above-mentioned fin 6 can fixedly mount with multiple shape, in general preferably its formed space can make the flow impedance of moving air reach minimum.

Fig. 4 is the side view of the ordered state of the fin of same intervals apart of the prior art.

As shown in Figure 4, in the ultra-fine pipeline thermal interchanger of prior art, the fin 6 that is installed between each arm 3 begins till the lower header 1 from upper header 2, it is certain at interval, the condensed water 7 that forms on each fin 6 can compile downwards, and particularly all condensed waters 7 can assemble and be stuck in fin 6 places of below at last.

The moving air in gap that flows through fin 6 this moment is when the fin 6 that flows through near upper header 2, owing to can not produce special flow impedance, so the heat exchange meeting between moving air and the fin 6 realizes smoothly.But, the moving air that flows through the fin 6 of close lower header 1 can be subjected to the effect of king-sized flow impedance, this is to be stuck in this because the periphery of the fin 6 of close lower header 1 has condensed water to flow down and assemble from top, therefore can produce bigger flow impedance.Can there be following problem in this case, that is: because the increase of flow impedance can make that the heat exchange between moving air and the fin 6 can not effectively be carried out, therefore can makes the heat exchange performance variation.

Summary of the invention

The present invention designs in order to solve aforesaid problem, and purpose is to provide the arrangement architecture of the fin in a kind of ultra-fine pipeline thermal exchange, thereby the condensed water on the surface that condenses in fin is discharged smoothly.

The invention provides a kind of interval fin do the ultra-fine pipeline thermal interchanger that has nothing in common with each other, it is characterized in that above-mentioned heat exchanger is by constituting with lower member: the level header of hollow can make cold-producing medium flow through; Several vertical refrigerant pipes are inserted in the above-mentioned level header, can make the cold-producing medium that flows in above-mentioned level header obtain distributing; Fin is installed between the above-mentioned vertical refrigerant pipe; In above-mentioned heat exchanger, the installation interval between the above-mentioned fin has nothing in common with each other, and it is big that the interval of this fin from top to bottom becomes gradually.

Interval fin of the present invention is done to such an extent that the ultra-fine pipeline thermal interchanger that has nothing in common with each other can reach following effect: the condensed water that the top from refrigerant pipe can be flow down is more successfully discharged.

The present invention another effect that can reach be: can reduce under the effect of fan and the atmospheric pressure lost of flow air, and can prevent that heat conduction amount from reducing.

Description of drawings

Fig. 1 is the side view of the outward appearance of heat exchanger;

Fig. 2 is the exploded view of respectively forming structure of heat exchanger;

Fig. 3 is the profile of the arm among Fig. 2;

Fig. 4 is the side view of the ordered state of the fin of same intervals apart of the prior art;

Fig. 5 is the side view of the ordered state of the fin of different interval apart among the present invention.

The critical piece description of reference numerals

1: lower header (header) 2: upper header 3: arm (tube)

4: header aperture 5: pipeline (channel) 6: fin (pin)

7: condensed water

The specific embodiment

Do to such an extent that the embodiment of the ultra-fine pipeline thermal interchanger that has nothing in common with each other is described in detail to the interval fin of the present invention with reference to the accompanying drawings.

As shown in Figure 5, the fin 6 that is installed between each arm 3 is different from upper header 2 beginnings until lower header 1 its installation interval, being provided with like this is to compile downwards at the condensed water 7 that the surface of each fin 6 generates in order to prevent, particularly in order to prevent that all condensed waters 7 from concentrating at fin 6 places of below all.Here, preferably do greatly near the installation interval of the fin 6 of lower header 1 than the installation interval of the fin 6 of close upper header 2.

Like this, even the condensed water 7 that generates on the surface of each fin 6 flows downward, below fin 6 places because its installation interval is bigger, so condensation meeting 7 can not be trapped in here but directly discharges downwards.

Therefore during at the fin 6 that flows through near upper header 2, can not produce special flow impedance at the moving air of the Clearance Flow of fin 6, thus moving air can and fin 6 between realize effective heat exchange.Moreover, the moving air that flows through the fin 6 of close lower header 1 also can not be subjected to the influence of special flow impedance, therefore can solve the moving air that the increase because of flow impedance causes and the problem of the heat exchange effect difference between the fin 6 by the present invention, thereby improve the low problem of performance of heat exchanger.

Claims

Interval fin do the ultra-fine pipeline thermal interchanger that has nothing in common with each other, it is characterized in that, comprising:

The level header of hollow can make cold-producing medium flow through;

Several vertical refrigerant pipes are inserted in the above-mentioned level header, can make the cold-producing medium that flows in above-mentioned level header obtain distributing;

Fin is installed between the above-mentioned vertical refrigerant pipe;

In above-mentioned heat exchanger, the installation interval between the above-mentioned fin has nothing in common with each other, and it is big that the interval of this fin from top to bottom becomes gradually.