Two-stage axial flow turbine blade profile and high coal stove heat recovery device thereof

A blade type and turbine technology, which is applied in the direction of blade support components, engine components, machines/engines, etc., can solve the problems of not being able to improve the heat conversion efficiency of the whole machine, achieve strong energy saving and economy, and improve the conversion rate Effect
CN110410155APending Publication Date: 2019-11-05XIAN SHAANGU POWER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN SHAANGU POWER
Publication Date
2019-11-05

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Abstract

The invention discloses a two-stage axial flow turbine blade profile, belongs to the technical field of heat energy recovery of a high coal stove, and solves the technical problem of low heat conversion rate of the blade profile in the field of high coal stoves in the prior art. The various section parameters of a movable blade profile and a static blade profile corresponding to a two turbine stages of the blade profile change along with the height of the blade profile, the load coefficient is 1.6-1.9, and the reaction degree is 0.3-0.35, so that the isentropic efficiency of a turbine as wellas the movable blade and the high coal stove heat recovery device of the turbine is improved. Requirements of people on waste heat recycling, energy conservation and environmental protection are met by improving the efficiency of heat recovery in the high coal stove.
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Description

technical field

[0001] The invention belongs to the technical field of high-coal furnace blades, and in particular relates to a two-stage axial-flow turbine blade and a heat recovery device for high-coal furnaces. Background technique

[0002] Blast furnace gas residual pressure turbine power generation device, referred to as TRT, is to use the by-products of blast furnace smelting - the pressure energy and heat energy of blast furnace top gas, to make the gas work through the turbo expander, convert it into mechanical energy, and then convert the mechanical energy for electrical energy. A turbine is a machine that converts the energy contained in a fluid medium into mechanical energy. Includes compressors, steam turbines, gas turbines, flue gas turbines and expanders. The most important part of the turbine is a rotating part, namely the rotor, or impeller, which is installed on the turbine shaft and has uniformly arranged blades. The energy of the fluid is converted into ...

Claims

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