There are 5 sight glasses on the negative pressure distillation tower; how can the risk of these sight glasses breaking be addressed?
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Dear teachers, there are 5 observation windows on the distillation tower. The temperature inside the tower is 180°C, and the negative pressure is -70 Kpa. Is there a risk of these windows breaking? If air gets in as a result of a break, the consequences could be severe. How to address such risks?
Based on the vacuum level, select high-silica glass with high pressure resistance
Double-layer mirror; some of Wanhua’s projects have been upgraded, 15026654289
The purpose of looking at a design is to figure out what it’s meant for If it’s not necessary, just block it by making design changes
Our approach is to remove the vacuum and fill it with nitrogen at a slight positive pressure, then replace it immediately within a very short time frame; this glass generally won’t break unless subjected to external force.
It seems like you’re worrying needlessly; this type of glass is very strong and generally doesn’t get damaged due to external forces. If a piece does get damaged, it’s possible to identify its location and temporarily use flanges to seal it, while adjusting the operating conditions based on performance parameters. The purpose of this testing setup is to help you gain a clearer understanding of the situation inside the tower. Experienced workers and inspectors usually don’t look at it, unless there are any abnormalities. Its existence can be considered an added advantage, providing a reference for analyzing problems
1. Remove it if it’s not necessary； 2. Emergency nitrogen supplementation can be set up: once the pressure drops to -50, nitrogen gas should be supplied immediately to bring it back to 5 kPa.
To exist is to be reasonable. It broke early on; tempered borosilicate glass can withstand such pressure. There’s no need to worry too much