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Reaction Steam Turbine

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Classification of SteamTurbine QNP
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Double Extraction Steam Turbine The QNP steam turbines capacity mainly covers 200MW and below QNP provides a wide range of products include all types of steam turbines condensing steam turbine back pressure steam turbine extraction condensing steam...
Axial Flow Reaction Turbine QNP
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Vapor Turbine from QNP The QNP steam turbines capacity mainly covers 200MW and below QNP provides a wide range of products include all types of steam turbines condensing steam turbine back pressure steam turbine extraction condensing steam turbine...
Vapor Turbine from QNP
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Vapor Turbine from QNP The QNP steam turbines capacity mainly covers 200MW and below QNP provides a wide range of products include all types of steam turbines condensing steam turbine back pressure steam turbine extraction condensing steam turbine...
Turbine Uesd in Power Plant QNP
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Turbine Uesd in Power Plant The QNP steam turbines capacity mainly covers 200MW and below QNP provides a wide range of products include all types of steam turbines condensing steam turbine back pressure steam turbine extraction condensing steam...
Turbine in Thermal Power Plant QNP
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Turbine in Thermal Power Plant The QNP steam turbines capacity mainly covers 200MW and below QNP provides a wide range of products include all types of steam turbines condensing steam turbine back pressure steam turbine extraction condensing steam...
Thermal Efficiency of Steam Turbine QNP
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Thermal Efficiency of Steam Turbine The QNP steam turbines capacity mainly covers 200MW and below QNP provides a wide range of products include all types of steam turbines condensing steam turbine back pressure steam turbine extraction condensing...
Steam Turbine Generator Set
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Steam Turbine Generator Set from QNP The QNP steam turbines capacity mainly covers 200MW and below include NI series Normal Impulse Turbines and HE series High Efficiency Turbines Our steam turbines are flexible and diverse in structure and layout...
Steam Turbine Electric Generator
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Steam Turbine Electric Generator from QNP The QNP steam turbines capacity mainly covers 200MW and below include NI series Normal Impulse Turbines and HE series High Efficiency Turbines Our steam turbines are flexible and diverse in structure and...
Steam Powered Turbine from QNP
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Steam Powered Turbine from QNP The QNP steam turbines capacity mainly covers 200MW and below include NI series Normal Impulse Turbines and HE series High Efficiency Turbines Our steam turbines are flexible and diverse in structure and layout so as...
Single Stage Impulse Turbine
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Saturated Steam Turbine from QNP The QNP steam turbines capacity mainly covers 200MW and below include NI series Normal Impulse Turbines and HE series High Efficiency Turbines Our steam turbines are flexible and diverse in structure and layout so as...
Saturated Steam Turbine from QNP
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Saturated Steam Turbine from QNP The QNP steam turbines capacity mainly covers 200MW and below include NI series Normal Impulse Turbines and HE series High Efficiency Turbines Our steam turbines are flexible and diverse in structure and layout so as...
Reaction Type Steam Turbine
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Reaction Type Steam Turbine from QNP The QNP steam turbines capacity mainly covers 200MW and below include NI series Normal Impulse Turbines and HE series High Efficiency Turbines Our steam turbines are flexible and diverse in structure and layout...
Reaction Stage Steam Turbine
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Reaction Stage Steam Turbine from QNP The QNP steam turbines capacity mainly covers 200MW and below include NI series Normal Impulse Turbines and HE series High Efficiency Turbines Our steam turbines are flexible and diverse in structure and layout...
Power Plant Steam Turbine from QNP
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Power Plant Steam Turbine from QNP The QNP steam turbines capacity mainly covers 200MW and below include NI series Normal Impulse Turbines and HE series High Efficiency Turbines Our steam turbines are flexible and diverse in structure and layout so...
Low Pressure Steam Turbine Manufacturers
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Low Pressure Steam Turbine from QNP The QNP steam turbines capacity mainly covers 200MW and below include NI series Normal Impulse Turbines and HE series High Efficiency Turbines Our steam turbines are flexible and diverse in structure and layout so...
Industrial Steam Turbine from QNP
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Industrial Steam Turbine from QNP The QNP steam turbines capacity mainly covers 200MW and below include NI series Normal Impulse Turbines and HE series High Efficiency Turbines Our steam turbines are flexible and diverse in structure and layout so...
Impulse and Reaction Steam Turbine QNP
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Impulse and Reaction Steam Turbine from QNP The QNP steam turbines capacity mainly covers 200MW and below include NI series Normal Impulse Turbines and HE series High Efficiency Turbines Our steam turbines are flexible and diverse in structure and...
High Pressure Steam Turbine from QNP
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High Pressure Steam Turbine from QNP The QNP steam turbines capacity mainly covers 200MW and below include NI series Normal Impulse Turbines and HE series High Efficiency Turbines Our steam turbines are flexible and diverse in structure and layout...
Geared Reaction Steam Turbine
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Geared Reaction Steam Turbine from QNP The QNP steam turbines capacity mainly covers 200MW and below include NI series Normal Impulse Turbines and HE series High Efficiency Turbines Our steam turbines are flexible and diverse in structure and layout...
Extraction Type Steam Turbine
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Extraction Type Steam Turbine from QNP The QNP steam turbines capacity mainly covers 200MW and below include NI series Normal Impulse Turbines and HE series High Efficiency Turbines Our steam turbines are flexible and diverse in structure and layout...
Extraction Condensing Steam Turbine
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Double Extraction Steam Turbine from QNP The QNP steam turbines capacity mainly covers 200MW and below include NI series Normal Impulse Turbines and HE series High Efficiency Turbines Our steam turbines are flexible and diverse in structure and...
China Reaction Steam Turbine Suppliers

A reaction turbine is a type of Steam Turbine that works on the principle that the rotor spins, as the name suggests, from a reaction force rather than an impact or impulse force.

In a reaction turbine there are no nozzles to direct the steam like in the impulse turbine.

Instead, the blades that project radially from the outer edge of the rotor are shaped and mounted so that the shape between the blades, created by the cross-section, create the shape of a nozzle. These blades are mounted on the revolving part of the rotor and are called the moving blades.


The fixed blades, which are the same shape as the moving blades, are mounted to the outer casing where the rotor revolves and are set to guide the steam into the moving blades. Below is a simple diagram of reaction turbine blades:


Reaction Turbine Principle:

In the case of reaction turbine, the moving blades of a turbine are shaped in such a way that the steam expands and drops in pressure as it passes through them. As a result of pressure decrease in the moving blade, a reaction force will be produced. This force will make the blades to rotate.

Turbines_impulse_v_reaction



Reaction Turbine Working:

A reaction turbine has rows of fixed blades alternating with rows of moving blades. The steam expands first in the stationary or fixed blades where it gains some velocity as it drops in pressure. Then enters the moving blades where its direction of flow is changed thus producing an impulse force on the moving blades. In addition, however, the steam upon passing through the moving blades, again expands and further drops in pressure giving a reaction force to the blades.

This sequence is repeated as the steam passes through additional rows of fixed and moving blades.

Note that the steam pressure drops across both the fixed and the moving blades while the absolute velocity rises in the fixed blades and drops in the moving blades.

The distinguishing feature of the reaction turbine is the fact that the pressure does drop across the moving blades. In other words, there is a pressure difference between the inlet to the moving blades and the outlet from the moving blades.

Special Aspects of Reaction Turbines

  • There is a difference in pressure across the moving blades. The steam will, therefore, tend to leak around the periphery of the blades instead of passing through them. Hence the blade clearances as to maintain as minimum as possible.
  • Also, due to the pressure drop across the moving blades, an unbalanced thrust will be developed upon the rotor and some arrangement must be made to balance this.