I would like to ask fellow sailors about the issue of turbine impeller stages.
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I would like to ask fellow sailors how to calculate the number of turbine stages. How to determine the stage of the impeller. Is the method for counting impellers the same for turbines, pumps, and compressors?
The number of impellers corresponds to the number of stages; the same principle applies to turbines, pumps, and compressors.
Are there any with two rows of impellers placed together? During maintenance, it was observed that the final stage of the turbine in the boiler feed pump consisted of two rows of impellers fixed together. Should that be considered level one?
A few impellers or blade sets correspond to several stages! Several stages or impellers can make up one section
The turbine carries out energy conversion through a set of stationary blades (nozzles) mounted within the partitions inside the cylinder, known as stationary blades, and a set of rotating blades mounted on the rotor, known as working blades. These stationary and rotating blades work together to form a functional unit; such a unit is referred to as a stage of the turbine. A turbine that consists of only one stage is called a single-stage turbine, while a turbine that comprises multiple pressure stages is called a multi-stage turbine.
I would like to ask what it looks like when two rows of impellers are placed together I’ve never seen it, nor have I figured it out!
Upload a picture to take a look; I’m not sure what you mean
As long as there is a pressure difference between the two impellers, it is a two-stage system regardless of how they are arranged