CN103438619A

CN103438619A - Composite fin type evaporator

Info

Publication number: CN103438619A
Application number: CN2013103229234A
Authority: CN
Inventors: 范宏伟
Original assignee: CHANGZHOU WANKANG ELECTRON Co Ltd
Current assignee: CHANGZHOU WANKANG ELECTRON Co Ltd
Priority date: 2013-07-29
Filing date: 2013-07-29
Publication date: 2013-12-11

Abstract

The invention relates to a composite fin type evaporator. The composite fin type evaporator comprises a coiled pipe and fins, wherein the fins are tightly expanded on the coiled pipe, a flared copper connection tube is welded at the end part of the coiled pipe, and the coiled pipe is made of copper tubes and aluminum tubes coating on the copper tubes. The composite fin type evaporator disclosed by the invention has the characteristics of good heat exchange performance and low cost.

Description

The combined type evaporator fin

Technical field

The present invention relates to the combined type evaporator fin.

Background technology

Finned evaporator is the most widely used a kind of heat transmission equipment in gas and liquid heat exchanger.Existing aluminum tube fin plate heat interchanger is general all to be welded direct to the copper pipeline fitting in the input, delivery outlet of aluminum pipe heat exchanger, perhaps from aluminum pipe heat exchanger input, delivery outlet, weld one section aluminum pipe, then be connected to the parts such as compressor, high pressure valve assembly by the copper pipeline fitting.Because the heat exchange efficiency of aluminum pipe pipeline is poor, and if all adopt its cost of copper pipeline high, therefore, just existing heat exchange efficiency height has again the evaporimeter that cost is low to become current problem.

In addition, existing evaporimeter product, in process of refrigerastion, can form the globule on fin, makes fin form between any two the water bridge, has affected contacting of fin and surrounding air, thereby has reduced refrigeration.When evaporimeter makes to use the light paper tinsel, temperature during evaporator surface is lower, and when the dew point lower than surrounding air, airborne moisture will be at its surface condensation Cheng Shui by evaporator surface the time, thus dewfall, thereby the heat exchange of evaporator surface is alternation of wetting and drying.When the height of the condensation globule surpasses a half of spacing of fin, probably between two fins, form on " water bridge ", increased thus air flow resistance, reduced ventilation, affected the evaporimeter heat-exchange capacity, make originally with regard to inadequate automobile air-conditioning refrigeration quantitative change, to obtain more not enough, simultaneously, this dry wet swap status, make airborne oxide, chloride, salt and various polluter can not dissolve and be deposited on fin surface, aluminium is corroded, and generating the compounds such as white powder aluminium, phosphorus, calcium, lead and mould is main component.This white powder has not only increased heat transfer resistance at fin surface, affects heat exchange,

Also can bring car into air-flow indoor, contaminated environment, the life-span of evaporimeter itself is also reduced because corroding.

Summary of the invention

The purpose of this invention is to provide the combined type evaporator fin that a kind of heat exchange property is good and cost is low.

The technical scheme solved the problems of the technologies described above is as follows:

The combined type evaporator fin, comprise coil pipe, fin, and the fin swelling is on coil pipe, and the end of coil pipe is welded with an enlarging copper connecting tube, and described coil pipe is made by copper pipe and the aluminum pipe be coated on copper pipe.

Adopted such scheme, described coil pipe is made by copper pipe and the aluminum pipe be coated on copper pipe.Copper pipe has heat exchange property preferably, and the relative copper pipe of aluminum pipe has the advantages that cost is low, and therefore, coil pipe adopts aluminum pipe and copper pipe to make, and has both met heat exchange property, has met again the low requirement of cost.

The weld of the end of coil pipe and enlarging copper connecting tube is provided with anticorrosive coat, and heat-shrink tube is coated on the weld of the end of coil pipe and enlarging copper connecting tube and anticorrosive coat is coated comprehensively.By anticorrosive coat and heat-shrink tube, the junction of coil pipe and enlarging copper connecting tube is protected, avoided junction to be corroded.

Further, on each fin, be equipped with opening, a transverse fin snaps onto in the opening of each fin.To a sheet, can increase the heat exchange area of a sheet by mould, be conducive to increase the heat exchange efficiency of evaporimeter.

Further, on the surface of described fin, parcel one deck hydrophilic film, reduce the height of the condensation globule by hydrophilicity, and water droplet one can spread rapidly to surface, form very thin moisture film, thereby can avoid forming the water bridge, reduce windage, fan energy consumption also is reduced.

The accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

The sectional view that Fig. 2 is the coil pipe in the present invention;

In figure, 1 is coil pipe, and 2 is fin, and 3 is the enlarging copper connecting tube, and 4 is heat-shrink tube, and 5 is transverse fin, and 10 is copper pipe, and 11 is aluminum pipe.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.

With reference to Fig. 1, the combined type evaporator fin in the present invention, comprise coil pipe 1, fin 2, and fin 1 swelling is on coil pipe 2.Described coil pipe is made by copper pipe 10 and the aluminum pipe 11 be coated on copper pipe.The surface of coil pipe 1 and fin is equipped with the acrylic paint protective layer, and the thickness of acrylic paint protective layer is 1-5mm, and preferably, the thickness of acrylic paint protective layer is 3mm.Be equipped with opening on each fin 2, a transverse fin 5 snaps onto in the opening of each fin, the height of transverse fin and the deep equality of opening, at least two fins 2 welding on transverse fin and coil pipe.The end of coil pipe 1 is welded with an enlarging copper connecting tube 3, and the weld of the end of coil pipe and enlarging copper connecting tube 3 is provided with anticorrosive coat, and this anticorrosive coat is for one deck of applying or which floor is pitch-dark.Heat-shrink tube 4 is coated on the weld of the end of coil pipe and enlarging copper connecting tube 3 and anticorrosive coat is coated comprehensively.Parcel one deck hydrophilic film on the surface of fin 2, the thickness of hydrophilic film is 1 to 3mm, preferably, the thickness of hydrophilic film is 2mm.

Claims

1. a combined type evaporator fin, comprise coil pipe, fin, and the fin swelling is on coil pipe, and the end of coil pipe is welded with an enlarging copper connecting tube, it is characterized in that, described coil pipe is made by copper pipe and the aluminum pipe be coated on copper pipe.

2. combined type evaporator fin according to claim 1, it is characterized in that: the weld of the end of coil pipe and enlarging copper connecting tube is provided with anticorrosive coat, and heat-shrink tube is coated on the weld of the end of coil pipe and enlarging copper connecting tube and anticorrosive coat is coated comprehensively.

3. combined type evaporator fin according to claim 1, it is characterized in that: be equipped with opening on each fin, a transverse fin snaps onto in the opening of each fin.

4. combined type evaporator fin according to claim 1, is characterized in that: parcel one deck hydrophilic film on the surface of described fin.

5. combined type evaporator fin according to claim 1 is characterized in that: the thickness of described hydrophilic film is 1 to 3mm.