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

Pending Publication Date: 2019-11-05
XIAN SHAANGU POWER
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Problems solved by technology

[0005] The airfoil in the prior art cannot further improve the waste heat utilization rate of the high-coal furnace, and cannot improve the heat conversion efficiency of the whole machine

Method used

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

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Embodiment Construction

[0085] In order to make the object, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some embodiments of the invention, not the complete embodiments. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0086] Such as figure 1 A two-stage axial-flow turbine blade is shown, which is used to transmit blast furnace gas. The section parameters of the rotor blade and stator blade corresponding to the two-stage turbine vary with the height of the blade, satisfying the load factor 1.6~1.9, reaction degree 0.3~0.35, in order to improve the isentropic efficiency of the turbine.

[0087] As an optional implementation, the first turbine stage includes a first moving blade type...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D5/06F01D5/14
CPCF01D5/06F01D5/141
Inventor 杨星李宏安陈余平杨刚袁志才张小龙郑秀萍周根标白璐奚忠申振苏瑞青汪传美陈红梅丁如义杨岐平孟鑫魏妮严伟博
Owner XIAN SHAANGU POWER
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