What are the hazards of excessive conductivity of steam from power generation boilers?
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What are the hazards of excessive conductivity in the steam from power generation boilers? If the conductivity of the steam from a power generation boiler is too high, for example, in the case of superheated steam at 3.82 MPa where the conductivity exceeds 0.3, what are the potential hazards?
Excessive conductivity affects the quality of steam; if it is used to drive a turbine, it can cause salt deposition inside the turbine, leading to production accidents.
An increase in vapor conductivity indicates that the vapor contains water, which can easily cause scaling in pipes and turbines as well as pipe blockages.
Why does an increase in conductivity indicate the presence of water? Ours is superheated steam; how can there be water? But the conductivity has increased
Conductivity is an indicator of the salt content in a boiler; when the conductivity exceeds the specified limit, it means the salt content in the boiler is high, which results in an increased amount of ions being carried away by the steam. This leads to salt accumulation in the steam turbine. Silicon, steam, and sodium ions can be used for detection
It can detect the levels of silicon and sodium in steam, to determine whether the salt content in the steam exceeds the allowable limits
In studies, learn about the conductivity parameter.
The boiler superheater can become fouled, as can the flow passages of the turbine. When the fouling is severe, the tubes in the superheater may burst, resulting in a decrease in the turbine’s efficiency!
High conductivity is generally due to excessive salt content or high COD levels, which can lead to structural damage and pitting corrosion in the turbine blades.
Excessive conductivity, high salt content, boiler scaling, and scaling on the turbine blades due to impacts.