Mass transfer exchanger

Abstract

The invention discloses a mass transfer exchanger. The mass transfer exchanger comprises a reaction pipe (30), a pipeline, a control valve, a displayer and a circuit control part. The mass transfer exchanger is characterized in that an inlet pipeline of the reaction pipe (30) is communicated with a hydrogen pipeline and a mass transfer gas pipeline, the hydrogen pipeline and the mass transfer gas pipeline are respectively provided with a hydrogen flow control device and a mass transfer gas flow control device, the inlet end of the reaction pipe (30) is provided with a heating device, a molecular sieve (32) is arranged in the reaction pipe (30), and the outlet pipeline of the reaction pipe (30) is connected with a filter (34) and then introduced into an annealing furnace (33) via a mixed gas pipeline. According to the mass transfer exchanger, the mixture is prepared by various low-temperature liquids with inert elements existing on the market according to different elements and different proportions, and the mixture completely substitutes for the effect of the conventional liquid ammonia during bright annealing. Especially, the mass transfer exchange is worthy of being popularized and used during surface bright annealing for the metal materials, such as cold-rolled sheets, belts, tubes and wires of iron and iron-base alloy, and copper and copper-base alloy.

Description

Technical field [0001] The present invention is the field of thermal treatment equipment technology, which is mainly used in cold -rolled plates, bands, tubes, silk and other metal materials such as iron and iron -based alloy, copper and copper alloys, and the protection required for the surface of the metal materials on the surface of the metal materials.Protocol. Background technique [0002] When the surface of the cold -rolled plate, belt, tube, silk and other metal materials such as iron and copper and copper -based alloy, most of them use a cooling gas -liquid ammonia.After the liquid ammonia is decomposed at high temperature, it produces 75-80%hydrogen and 20-25%nitrogen. The atmosphere of ammonia burning is a kind of controllable atmosphere of nitrogen-based.A variety of thermal treatment and protection atmosphere such as fire, welding, and timely effect can be used as the restoration and sintering atmosphere of powder metallurgy, so that the above metal can maintain the ...

AI Technical Summary

Problems solved by technology

The user unit must have a person with a certificate to work. If the storage capacity exceeds the critical amount, it will constitute a major hazard; improper operation or leakage will cause personnel poisoning, explosion and environmental pollution; the hydrogen decomposed from liquid ammonia is a flammable and explosive gas. Or improper use, it is very easy to cause explosion, causing heavy personnel and property losses; when liquid ammonia is decomposed, it needs to consume a lot of energy, so that the cost of annealing heat treatment process remains high

[0003] Because liquid ammonia is used to decompose the surface of traditional metal materials in bright annealing, which is highly dangerous and costly, it is very necessary to find safe and efficient alternatives, especially the control equipment for safe and efficient alternatives

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