Deep cooling treatment device and method

Abstract

The invention provides a deep cooling treatment device and method. The device comprises a box for conducting deep cooling treatment on a to-be-treated workpiece. The box is provided with a gas inlet and a main gas outlet. Hot gas enters the box through the gas inlet, and gas in the box is discharged through the main gas outlet. An annular liquid inlet groove surrounding the side wall of the box isarranged between the gas inlet and the main gas outlet of the box, and is used for conveying low-temperature media into the box. Gas at the gas inlet end in the box penetrates the plane where the annular liquid groove is located and is discharged through the main gas outlet. According to the provided deep cooling treatment device and method, the redundant cooling capacity in the box can be blowntowards the main gas outlet along with flowing of gas to directly conduct pre-cooling on the to-be-treated workpiece, continuous cooling capacity recycling is achieved, the cooling capacity can be sufficiently and completely recycled, energy consumption can be reduced, and the deep cooling treatment efficiency is improved. In addition, temperature returning and tempering treatment can be directlyand continuously conducted on the to-be-treated workpiece, and the treatment process is continuous and efficient.

Description

technical field [0001] The present invention relates to the technical field of cryogenic treatment, and more specifically, to a cryogenic treatment equipment and method. Background technique [0002] Cryogenic treatment refers to the process of placing materials in a certain low temperature environment (below -100°C) and processing them according to a certain process. Cryogenic treatment has a wide range of applications. For metal materials, research and application have shown that cryogenic treatment can effectively improve the mechanical properties of materials such as wear resistance, dimensional stability, strength and toughness, thereby improving product quality, prolonging service life, and ultimately reducing Cost of production. In addition, in the field of food, for food materials, cryogenic treatment can be used to freeze and keep food fresh, prolonging the shelf life of food, etc. In recent years, cryogenic treatment technology has been widely used in the fields ...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a way to overcome the problem that the cold energy cannot be recovered after the workpiece is processed by the traditional cryogenic treatment equipment, and the discharge of low-temperature cold air in the treatment process leads to a large waste of cold energy; and the cryogenic treatment and subsequent processes usually need to be carried out separately, and the production efficiency is low. Or a kind of cryogenic treatment equipment and method that at least partly solve the above-mentioned problems

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