Centrifugal radial flow turbine

Abstract

The invention provides a centrifugal radial flow turbine, compared with a traditional centripetal radial flow turbine, the rotation rate does not need to be increased under the same flow, the output power can be increased and the requirement of the output power of a turbine can be met as long as the level number of the turbine is added; a high speed bearing, a motor and a speed change mechanism do not need to be assembled, the equipment cost can be effectively reduced, the equipment operation safety can be improved, which is conducive to the reliability and stability of equipment; compared with an axial-flow turbine, the centrifugal radial flow turbine is compact in structure, small in size, can well adapt the small flow work condition, and expand the working condition range of the turbine.

Description

technical field [0001] The invention relates to the field of small distributed power cycle, such as organic Rankine cycle, in particular to a centrifugal radial flow turbine. Background technique [0002] Today, when the problem of energy shortage is becoming more and more prominent, various thermodynamic cycle systems using industrial waste heat and new energy sources will be widely used. In these systems, turbines, as a kind of expanders, are indispensable components. A turbine is a rotary power machine that converts the thermal energy of a working medium (steam, gas, air, organic working medium, etc.) leaves) and rotating blades (moving blades). During operation, the energy of the airflow is converted into kinetic energy when flowing through the stationary blades. When the fluid flows through the moving blades, the fluid impacts the blades and pushes the moving blades to rotate, thereby driving the turbine shaft to rotate. output mechanical power. The basic unit that co...

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Problems solved by technology

However, traditional centripetal flow turbines are mostly single-stage structures. In order to meet the requirements of output power, their speeds are often tens of thousands of revolutions. The speed requirements are very high, which affects the reliability and stability of equipment operation. The current domestic level is very high. Difficult to realize, the price of corresponding foreign products is high, and the supply situation is restricted by others; when the traditional radial flow turbine works, it must be matched with high-speed bearings, motors or transmission mechanisms, which increases the cost

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