Classification problem for horizontal tanks operating with a full liquid level
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It is a horizontal tank operated with a full liquid level; the operating temperature is at room temperature and the operating pressure is 1 MPa. There is only a gas space reserved, consisting of two manholes with an area of approximately 0.1 cubic meters. However, considering the operating pressure of 1 MPa, the gas space gets compressed, and it is calculated that the gas space under these operating conditions does not meet the requirements for classification. Does such equipment still need to be classified? Note: The temperature is low, below the standard boiling point of the medium
According to your own words: “The aperture of each of the two is about 0.1 cubic meters”; if it’s a gas-phase space, then 0.1 cubic meters is sufficient for classification.
When the gas volume reaches 30L, classification is required, and it is calculated based on the total volume. See Notes 1-4 on page 1 of the main regulations.
Install a vent valve on the manhole; by releasing the air, it will no longer fall into that category.
However, during normal operation, the gas phase space no longer meets the requirements of the solid volume rule
If operated with a full liquid level, no gas phase space will remain； If the remaining gas space is 0.1 cubic meters, and considering that the operating pressure of this equipment is 1 Mpa, it must be classified in accordance with TSG21-2016. There are still some parts here that are not clear: “It is a horizontal tank operated with a full liquid level; the operating temperature is at room temperature, and the operating pressure is 1 MPa. There is only a gas space reserved, consisting of two manholes with an area of approximately 0.1 cubic meters. However, considering the operating pressure of 1 MPa, the gas space gets compressed, and it turns out that the gas space under operating conditions does not meet the requirements for classification.” Is “0.1 cubic meters” the amount of gas space reserved before operation?
There is a manhole on the top of the tank; the tank is equipped with vents or discharge openings. When the tank is full, air remains in the manhole pipe. You’re really stupid
First, figure out what full-liquid operation is, and then comment on others.
This can take advantage of loopholes; it’s not necessary to classify it, as it involves full-liquid operation. The gas space of the manhole can be evacuated by other methods. But if examined closely, if the exhaust measures cannot be properly explained to ensure that there is no gas phase space, responsibility still has to be assumed!
In accordance with Article 1.3 of the Solid Waste Regulations, classification is mandatory.