I’m seeking advice on the relationship between pressure and steam temperature; I can’t figure it out
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Our unit is equipped with a high-pressure steam drum. Currently, the temperature of the water in this drum is 250 degrees, and the pressure is 4.1 megapascals; these values match those listed in the saturation steam temperature-pressure chart. However, the steam generated by this drum has a pressure of 2.0 megapascals and is fed into a pipeline system with a capacity of 20 kilograms per unit time. The steam produced is saturated, not supersaturated. Please provide an explanation for this.
Let’s think about it again tomorrow then 111111
With so many experts, isn’t there anyone whose device is like this?
Is there a control valve that regulates the pressure when the steam in the drum is fed into the pipeline network?
It wasn’t consumed by the control valve, plus there’s a 20-kilogram difference
Hasn’t there been overheating? One possibility is to install a temperature and pressure reduction device
The question is confusing; let’s try to answer it: The drum operates at a pressure of 4.1 MPa, and the temperature of the saturated steam produced is around 252 degrees Celsius. Your question is why the drum produces steam at 2.0 MPa – this is because it is connected to a pipeline system operating at 2.0 MPa, and the working pressure of the drum is also 2.0 MPA; therefore, steam at 2.0 MPa is produced. The saturation temperature corresponding to this working pressure is around 213 degrees. The pressure is not determined by a single drum; you can pressurize the drum to the operating pressure and then use valves to reduce the steam pressure to 2.0 MPa. At this point, the steam is superheated – does this meet your requirements?
Your air tank must have a pressure regulator before it enters the pipeline network.
The pressure is not necessarily constant; the steam generated in the drum must pass through a temperature and pressure reducer before being introduced into the pipeline network
There is a relevant article; please check it out at: http://wenku.baidu.com/view/6815296cb84ae45c3b358c03.html?from=related&hasrec=1. What you are dealing with is likely superheated steam rather than saturated steam. http://bbs.hcbbs.com/thread-116894-1-1.html has the answer to this solution question
It should be superheated steam, but due to poor insulation of the pipes, it has turned into saturated steam!