CN203550749U

CN203550749U - Finned evaporator protecting structure

Info

Publication number: CN203550749U
Application number: CN201320454651.9U
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: 2014-04-16
Anticipated expiration: 2023-07-29

Abstract

The utility model relates to a finned evaporator protecting structure which comprises a coil and fins. The fins expand on the coil, a flaring copper connection pipe is welded at the end of the coil, an anticorrosive layer is arranged at the welding position of the end of the coil and the flaring copper connection pipe, and a heat shrinking pipe wraps the welding position of the end of the coil and the flaring copper connection pipe and completely covers the anticorrosive layer. A hydrophilic film wraps the surfaces of the fins. The finned evaporator protecting structure can avoid water bridge formation and reduce wind resistance.

Description

Finned evaporator protection structure

Technical field

The utility model relates to finned evaporator protection structure.

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 to be all welded direct to copper pipeline fitting in the input, delivery outlet of aluminium heat-exchange device, or from the input of aluminium heat-exchange device, one section of aluminum pipe of delivery outlet welding, then by copper pipeline fitting, be connected to the parts such as compressor, high pressure valve assembly.Between copper-aluminium joint or do not take any safeguard measure; only take simply the protection of spraying paint, practice shows, this class connected mode can not effectively be avoided the corrosion between copper-aluminium joint; along with go over service time, copper-aluminium joint often causes the leakage of cold-producing medium because of corrosion failure.Between copper and aluminium, have potential difference, once contact with water, copper-aluminium joint exists because potential difference causes producing electrochemical corrosion.Therefore, must adopt strong safeguard measure to copper-aluminium joint.

In addition, existing evaporimeter product, in process of refrigerastion, can form the globule on fin, makes fin form between any two water bridge, has affected contacting of fin and surrounding air, thereby has reduced refrigeration.When evaporimeter makes to use light paper tinsel, temperature during evaporator surface is lower, and when dew point lower than surrounding air, airborne moisture will be at its surface condensation Cheng Shui when by evaporator surface, thus dewfall, thereby the heat exchange of evaporator surface is alternation of wetting and drying.When the height of the condensation globule exceedes a half of spacing of fin, probably between two fins, form on " water bridge ", increased thus air flow resistance, reduced ventilation, affected 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, and the life-span of evaporimeter itself is also reduced because corroding.

Summary of the invention

The purpose of this utility model is to provide a kind of finned evaporator protection structure that can avoid forming water bridge, reduce windage.

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

Finned evaporator protection structure, comprise coil pipe, fin, fin swelling is on coil pipe, the end of coil pipe is welded with an enlarging copper connecting tube, the weld of the end of coil pipe and enlarging copper connecting tube is provided with anticorrosive coat, and a heat-shrink tube is coated on the end of coil pipe and the weld of enlarging copper connecting tube anticorrosive coat is comprehensively coated; On the surface of described fin, wrap up one deck hydrophilic membrane.

The thickness of described hydrophilic membrane is 1 to 3mm.

On the surface of coil pipe and fin, be equipped with acrylic paint protective layer.

The thickness of described acrylic paint protective layer is 1-5mm.

Adopted such scheme, on the surface of described fin, wrapped up one deck hydrophilic membrane, by hydrophilicity, the height of the condensation globule has been reduced, and water droplet one is to surface, can spread rapidly, forms very thin moisture film, thereby can avoid forming water bridge, reduce windage, fan energy consumption is also reduced.

In addition; the utility model is all provided with after acrylic paint protective layer on the surface at coil pipe and fin; because acrylic paint protective layer has fast drying; adhesive force is good; heat resistance, weather resistance are good; therefore,, after acrylic paint protective layer is arranged on coil pipe and fin, make heat resistance, the weather resistance of finned evaporator protection structural entity all there is significantly lifting.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

In figure, 1 is coil pipe, and 2 is fin, and 3 is enlarging copper connecting tube, and 4 is heat-shrink tube.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

With reference to Fig. 1, the finned evaporator protection structure in the utility model, comprises coil pipe 1, fin 2, and fin 2 swellings are on coil pipe 1.The surface of coil pipe and fin is equipped with 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.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 one deck applying or which floor is pitch-dark.A heat-shrink tube 4 is coated on the end of coil pipe and the weld of enlarging copper connecting tube 3 anticorrosive coat is comprehensively coated.On the surface of fin 2, wrap up one deck hydrophilic membrane, the thickness of hydrophilic membrane is 1 to 3mm, and preferably, the thickness of hydrophilic membrane is 2mm.

Claims

1. a finned evaporator protection structure, comprise coil pipe, fin, fin swelling is on coil pipe, the end of coil pipe is welded with an enlarging copper connecting tube, the weld of the end of coil pipe and enlarging copper connecting tube is provided with anticorrosive coat, and a heat-shrink tube is coated on the end of coil pipe and the weld of enlarging copper connecting tube anticorrosive coat is comprehensively coated; It is characterized in that, on the surface of described fin, wrap up one deck hydrophilic membrane.

2. finned evaporator according to claim 1 protection structure, is characterized in that: the thickness of described hydrophilic membrane is 1 to 3mm.

3. finned evaporator protection structure according to claim 1, is characterized in that: on the surface of coil pipe and fin, be equipped with acrylic paint protective layer.

4. finned evaporator protection structure according to claim 3, is characterized in that, the thickness of described acrylic paint protective layer is 1-5mm.