Why is the steam pressure at 1.0 MPa unstable?
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In the factory, after passing through the temperature and pressure reducers, the steam coming from the thermal power plant has unstable pressure. What is the reason for this? Please give some advice!
Water carried in the steam after temperature reduction can cause unstable steam pressure; raising the steam temperature appropriately can eliminate this issue of water in the steam after temperature reduction.
Could we add a STEAM TRAP? If the steam contains moisture, the pressure will naturally fluctuate.
A buffer tank can be added after temperature reduction, along with hydrophobic treatment at the bottom, to ensure the quality of the steam and stable pressure
First, it is necessary to consider whether there are significant fluctuations in the steam consumption of downstream users. Second, the control method of the pressure control valve should be taken into account, as well as whether the PID settings are appropriate!
Could it be that the water in the steam pipe hasn’t been drained properly?
The main reasons are as follows: 1. The steam pressure and flow rate from the thermal power plant are unstable； 2. Unstable water volume, temperature, or level in the desuperheater ； 3. Steam contains water. Appropriate measures can be taken depending on the situation, such as adding buffers or vapor-liquid separation devices.
The steam load changes too much, and the pressure reducing valve is unable to maintain stability
If the pipeline is equipped with a disc-type trap, its sudden discharge can also cause instability in the pipeline pressure.