TurboClaw® multi-stage machine and its CAD model
The TurboClaw® innovation is uniquely applicable for multi-stage compressors when the shaft speed is chosen by other considerations. This occurs commonly in multiple-stage industrial compressors where the volumetric flow rate (mass flow/density) reduces as the gas is compressed, and therefore the later stages have a lower specific speed than the early stages. Applications include: Oil & Gas, Hydrocarbon Processing, Pulp & Paper, Power Generation, Water & Wastewater and Food, Metals & Fertilizer markets. Low specific speed stages are particularly favoured for the later stages of multi-stage compressors because of low axial length (no inducer), so that the rotating assembly can remain short and stiff. High diameter rotors are generally avoided when the specific speed of the stage is low because this would lead to excessively low flow coefficients causing high wall friction, and therefore the rotors are generally light. This is desirable as adding mass to the shaft would reduce its natural frequency. TurboClaw® operates at relatively low speeds and thus avoids high excitation frequencies that are likely to coincide with shaft modes.
TurboClaw® multi-stage machine and its CAD model |
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