CN2187763Y

CN2187763Y - Corrosion-resistant combined tube refrigerating evaporator

Info

Publication number: CN2187763Y
Application number: CN 94200433
Authority: CN
Inventors: 丁宏伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-01-14
Filing date: 1994-01-14
Publication date: 1995-01-18
Anticipated expiration: 2004-01-14

Abstract

The utility model relates to a corrosion-resistant combined tube refrigerating evaporator which is a discoid or spiral metal tube. The metal tube is a combined tube that is compounded by more than two materials to be a multilayer structure, the inner part of the metal tube is a copper pipe, and the outer face comprises in turn a chromium layer, a nickel layer and a titanium layer, or the inner part a copper pipe, and the outer face is a titanium layer. The utility model has the advantages of simple structure, convenient processing, low cost, good heat-conducting property, corrosion resistance, etc., suitable for refrigerating corrosive media such as sea water or saline.

Description

Corrosion-resistant combined tube refrigerating evaporator

The utility model relates to Refrigeration Technique, especially a kind of anti-corrosion multiple tube refrigerating evaporator.

Evaporimeter is one of chief component of refrigeration plant, generally is copper or aluminum pipe coiling moulding with good heat conductivity, according to different occasions, and can coiled plate-like or helical form.When entering, compressed cold-producing medium just is in the heat absorption state after evaporimeter expands, draw heat from evaporimeter medium on every side, and the medium cooling around making reaches the refrigeration purpose.Up to the present, evaporimeter is all made of single copper pipe or aluminum pipe.Aluminum pipe or copper pipe thermal conductivity are good, but resistance to corrosion is poor, can only be used for water or air cooling.If be used for the medium refrigeration of seawater or salt solution or seriously corroded.The very fast corrosion and damage of evaporimeter then.Though the good metal material of corrosion stability is arranged, because poor thermal conductivity or cost costliness can't be used for evaporimeter and make.

Task of the present utility model provides a kind of corrosion-resistant multiple tube refrigerating evaporator, can be immersed in the strong medium of corrosivity such as seawater or salt solution and freeze.

The utility model is achieved in that anti-corrosion multiple tube refrigerating evaporator is a kind of plate-like or spiral helicine metal tube.Said metal tube is the sandwich construction multiple tube that is composited by two or more materials.

The multiple tube of this sandwich construction, internal layer are heat conduction good metal pipes, and skin is a kind of etch resistant properties good metal rete.This corrosion resistant metal rete can make with the method for electroplating, applying or cladding.

Anti-corrosion multiple tube refrigerating evaporator has simple structure, and easy to process, production cost is low, good heat conductivity, and advantage such as corrosion-resistant is particularly suited for the refrigeration of Korrosionsmediums such as seawater or salt solution.

Fig. 1 is the embodiment that anti-corrosion multiple tube refrigerating evaporator is used for seawater or salt-ice refrigeration;

Fig. 2 is the profile of anti-corrosion multiple tube refrigerating evaporator.

As shown in Figure 1, salt solution to be freezed or seawater are pressed into evaporation tank 2 by water inlet pipe 8 through water pump 7, water pipe 9, through managing 10 evaporimeter 1 swelling heat absorptions that enter in the evaporation tank, make salt solution or seawater cooling in the evaporation tank 2 after compressed machine 3 compressions of cold-producing medium in the refrigerating plant.Salt solution or seawater after the cooling are discharged from outlet pipe, enter the container that needs hypothermic saline or seawater, in crawl or fish jar.Cold-producing medium in the evaporimeter 1 behind the swelling heat absorption enters condenser 4 through pipeline 5, and enters compressor compresses once more through pipeline 6, carries out repeatedly successively, just can salt solution or the seawater that enter evaporation tank 2 constantly be freezed.

Anti-corrosion multiple tube refrigerating evaporator inside shown in the accompanying drawing 2 is copper pipe 12, and the copper pipe outside is chromium layer 13, nickel dam 14 and titanium layer 15 successively, makes of electric plating method.Anti-corrosion multiple tube refrigerating evaporator also can be used in the method making that copper pipe 13 outsides directly applied or cladded titanium layer.

Claims

1, a kind of anti-corrosion multiple tube refrigerating evaporator is characterized in that it is a kind of plate-like or spiral helicine metal tube, and this metal tube is the multiple tube of the sandwich construction that is composited by two or more materials.

2, by the described anti-corrosion multiple tube refrigerating evaporator of claim 1, it is characterized in that said sandwich construction multiple tube, inside is copper pipe, and the copper pipe outside is chromium layer, nickel dam and titanium layer successively.

3, by the described anti-corrosion multiple tube refrigerating evaporator of claim 1, it is characterized in that said sandwich construction multiple tube, inside is copper pipe, and the copper pipe outside is a titanium layer.