safety valve location
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I am looking at the drawing of the sulfur acid water device stripping tower solvent regeneration tower. Is it okay if the safety valves are placed at the bottom of the tower? I have been exposed to them before and they were placed at the top of the tower.
What I see is usually at the top of the tower, not very common below, and it doesn't feel very convenient and safe.
This is from a security perspective.
The safety valve is placed at the bottom of the tower and is followed by a vent at the top of the tower for safety. A lot of acid gas will definitely come out when the regeneration tower is vented.
It should be placed in the middle and lower part of the tower for safety, so that too much acid gas will not come out when the safety valve takes off.
It is okay for the safety valves of the solvent regeneration tower of the stripping tower of the sulfur acid water device to be placed at the bottom of the tower. They are safety valves for liquid venting. When the pressure in the tower is high, the liquid is released first, and the toxic and harmful acidic gas is not released immediately. It is designed with safety and environmental protection concepts in mind.
I have a question. High pressure in the tower is usually caused by compressible fluid (usually gas stripping). If a safety valve is installed at the bottom, the time to release the liquid may be too long, which is detrimental to the safety of the device.
Even if it is toxic gas, it will not cause harm to personnel if it is discharged in a closed manner. We have a safety valve on the top of the tower. Are there any other benefits of setting it up at the bottom of the tower?
Mainly from a safety perspective, the safety valve of the amine liquid regeneration tower here is also placed at the lower part of the tower.
Hydrogen sulfide can cause corrosion to equipment. In the tower, hydrogen sulfide is removed from the top of the tower. If the safety valve is set at the top of the tower, it will inevitably corrode the internal parts of the safety valve, damage the safety valve, and fail to achieve the corresponding performance (that is, it cannot be opened in time, or the sealing is reduced). Therefore, the safety valve is set at the bottom of the tower.
I personally think that it is best to place the safety valve on the top of the tower, because this way it is generally less likely to produce a liquid seal, which also improves the reliability of the safety valve.