How much pressure is considered dangerous?
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Recently, I heard a colleague mention something: during one of their meetings, he told the new university graduates who had just started working there that there was a pipeline with a pressure of 25 Mpa, and they should be careful while working. Some of these people were surprised, while others didn’t care. But in our experience, 25 Mpa is already a very high and dangerous pressure. Pressure is not like temperature; 0 degrees is very cold, while 100 degrees is very hot ； It’s not like voltage either; 36V is considered a safe voltage level. I wonder, what level of stress is considered dangerous, and how can we make these young people realize the destructive effects of stress? Thank you all; feel free to give your feedback!~~
Here, we stipulate that any pressure above 300 KPa is considered dangerous
Find some photos of equipment exploding for them to see the effects of a few kilograms of pressure, and then have them think about what 250 kilograms would be like.
There is no such thing as absolutely safe pressure; what matters is the conditions under which the pressure exists. 25 mPa is considered high pressure, but isn’t it safe when the equipment is under negative pressure? As long as the equipment itself can meet the pressure requirements for production, 250 kilograms is no problem! The petrochemical industry is characterized by flammability, explosiveness, high temperatures, and high pressures; it is a high-risk industry even without pressures of 250. Pure numbers alone are not sufficient for training purposes – to be effective in educating people, it is necessary to incorporate real-world scenarios and examples!
The reaction pressure here reaches 40 kilograms, and the pipes are subjected to even higher pressures
I agree with what was said on the 4th floor; to determine whether something is dangerous or not, one cannot consider only pressure but also other factors. Such as flammability, explosiveness, toxicity, corrosivity, asphyxiation, etc.
The pressure is indeed too high; the danger exists objectively. Regardless of the medium, if it is dangerous, things become even more terrifying! ! It already belongs to high-pressure pipelines, a major hazard source – and yet it’s not dangerous!
High-pressure leaks are extremely dangerous; the area where the leak occurs can turn bright red. I heard that you can’t even see the leak point; just try using your hand, and it will create a hole.
High-voltage equipment generally comes with many safety measures, which makes accidents less likely to occur (though they can be very serious once they do happen). In contrast, medium and low-voltage operations often have their dangers overlooked, resulting in a higher probability of accidents. The pressure in high-pressure polyethylene reactors is 300 MPa – isn’t that scary? Check if there have been any accidents in such systems
Well said, I support it. However, for the chemical plant projects we are working on now, rather than using valves, we employ external level gauges for liquid chlorine and liquefied gas storage tanks; this helps to effectively prevent leaks of hazardous gases. It is another highlight in terms of safety.
Reply to 4# Stone Boy: I agree with what was said on the third floor – it’s useful to use some examples, as that helps people remember better. Many people don’t have any concept of what 250 kilograms of pressure means; by presenting a few examples, it’s possible to illustrate the danger associated with this pressure in a clear way, which will leave a deep impression on them and stay with them for life.