An integrated heat exchange system for axial fast flow gas laser

Abstract

The invention discloses an all-in-one heat exchange system of a fast-flow axial gas laser. The all-in-one heat exchange system is characterized in that the inner ring of an annular air chamber partition board is installed on the edge of an air inlet air path of a draught fan, the inner ring of an annular bottom plate of an air outlet air chamber is installed on the edge of an air outlet air path of the draught fan, an air inlet heat exchange air chamber is defined by the annular air chamber partition board and an air inlet air chamber, and an air outlet heat exchange air chamber is defined by the annular air chamber partition board and the air outlet air chamber; an air inlet heat exchanger is fixed in the air inlet heat exchange air chamber, an air outlet heat exchanger is fixed in the air outlet heat exchange air chamber, the air inlet heat exchange air chamber is provided with an airflow drawing-in belt, an air inlet heat exchange annular belt and an air inlet buffer annular belt, and the air outlet heat exchange air chamber is provided with an airflow diffusion annular belt, an air outlet heat exchange annular belt and an air outlet buffer annular belt; the outer sidewall of the air inlet air chamber is provided with air inlets communicated with the air inlet buffer annular belt, and the outer sidewall of the air outlet air chamber is provided with air outlets communicated with the air outlet buffer annular belt. The all-in-one heat exchange system can improve heat exchange efficiency and is simple in structure and low in manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of lasers, in particular to an integrated heat exchange system of an axial fast-flow gas laser. Background technique [0002] Axial Fast Flow CO 2 Laser is currently the main light source for high-power laser industrial processing applications. Because the discharge direction, airflow direction and resonant cavity direction are all coaxial, good beam quality can be obtained, so it is widely used in laser cutting, welding and surface treatment. It is the industrial laser with the highest cost performance and the most mature application technology. [0003] Axial fast flow CO2 lasers will generate a lot of heat due to gas discharge during the working process. As the temperature rises, the efficiency of the laser will decrease or even fail to emit light. It is necessary for the gas to generate subsonic high-speed flow in the discharge tube to remove the heat. The discharge area ensures the stability of the di...

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Problems solved by technology

Since the compressed air of the fan will do work during operation, the temperature of the fan will rise and the efficiency will decrease. Therefore, in order to improve the efficiency, the volute of the fan needs to be cooled separately, which increases the manufacturing cost and process complexity of the fan; moreover, the use of Split design, the size of the inlet and outlet of the fan is limited, there will be a certain loss of the pressure head and flow of the fan, and the efficiency of the fan will be reduced; in addition, for the fan and heat exchanger, it is necessary to process multiple shells and heat exchangers Core and other components, especially when there are many inlets and outlets of the heat exchange system, the number of components is more, which increases the cost of manufacturing and the complexity of assembly

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