热真空除气试验装置
By designing a liftable liquid nitrogen adsorption tank and a cold trap structure with a shielding insulation layer in the thermal vacuum degassing test device, the problem of the cold trap obstructing gas flow was solved, achieving a more efficient pumping process and improved vacuum level, thus extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGSHU YUHUA VACUUM EQUIP TECH CO LTD
- Filing Date
- 2023-12-22
- Publication Date
- 2026-07-17
AI Technical Summary
In existing thermal vacuum degassing test equipment, the cold trap obstructs gas flow, resulting in the vacuum level not reaching the required speed and affecting test efficiency.
A cold trap structure was designed, comprising a four-way cavity, a liquid nitrogen adsorption tank, and a lifting drive mechanism. The liquid nitrogen adsorption tank is lifted and lowered to capture gas at different stages. Combined with a shielding insulation layer and an insulating support column, the low temperature is maintained to improve the gas extraction efficiency.
The pumping rate was increased and the pumping time was reduced during the roughing stage. In the high vacuum stage, contaminants were effectively captured, preventing them from adhering to the pump impeller, thus improving the vacuum level and equipment life.
Smart Images
Figure CN117799869B_ABST