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A titanium alloy high-efficiency steam turbine blade

A technology of steam turbine blades and titanium alloys, which is applied in the direction of blade support components, mechanical equipment, engine components, etc., can solve the problems of not exerting the maximum working efficiency of blades, high manufacturing cost of steam turbine blades, and easy to be damaged by corrosion. The effect of high speed, enhanced structural strength, and stable operation

Active Publication Date: 2018-02-13
南京赛达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The steam turbine blade is an important part of the steam turbine generator set. The steam turbine blades commonly used in the market generally improve the working efficiency by changing the shape of the blade, but the effect is not obvious, and the maximum working efficiency of the blade has not been exerted. And the existing steam turbine Blades are expensive to manufacture, susceptible to corrosion damage, short service life, and high maintenance costs

Method used

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  • A titanium alloy high-efficiency steam turbine blade
  • A titanium alloy high-efficiency steam turbine blade

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The titanium alloy high-efficiency steam turbine blade of the present embodiment, as figure 1 with 2 As shown, it includes the blade root 6, the blade profile 4 and the blade top 2, the blade root 6, the blade profile 4 and the blade tip 2 are sequentially fixed and made into one body, the mounting seat 7 is fixedly connected to the bottom of the blade root 6, and the mounting seat 7 A positioning piece 8 is fixedly attached to the middle part of the lower surface. The blade root 6 is also provided with a wind-catching device 10, the wind-catching device 10 includes a base plate 10b and a wing plate 10a, the wing plate 10a is connected to the base plate 10b, and the angle between the wing plate 10a and the base plate 10b is less than or equal to 90°, The bottom plate 10b is fixed on the blade root 6; three air guide grooves 5 are opened on the surface of the blade profile 4; an auxiliary blade 1 is fixedly connected to the blade top 2. The middle part of blade top 2 i...

Embodiment 2

[0080] The titanium alloy high-efficiency steam turbine blade of the present embodiment is basically the same as embodiment one, the difference is that in the step (i) of the processing technology of the titanium alloy high-efficiency steam turbine blade, the mass percentage of each component in the titanium alloy high-efficiency steam turbine blade raw material is: C: 0.11 %, Fe: 1.05%, Mn: 0.43%, S: ≤0.020%, P: ≤0.030%, Cr: 0.56%, Ni: 1.53%, Zn: 1.88%, Cu: 1.97%, Mo: 0.03%, Ag : 0.09%, Pd: 0.03%, Pt: 0.03%, Au: 0.02%, W: 0.93%, Ta: 0.62%, Nd: 0.03%, Ce: 0.03%, Eu: 0.02%, Lu:0.03%, oxidation Calcium: 0.14%, Talc: 0.15%, Magnesium Oxide: 0.22%, Copper Oxide: 0.17%, Iron Oxide: 0.26%, Manganese Dioxide: 0.18%, Copper Hydroxide: 0.16%, Iron Hydroxide: 0.07%, Barium hydroxide: 0.06%, potassium nitrate: 0.25%, magnesium chloride: 0.16%, potassium chlorate: 0.28%, barium sulfate: 0.04%, copper sulfate: 0.07%, and the balance is Ti.

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Abstract

The invention relates to an efficient titanium alloy turbine blade. The efficient titanium alloy turbine blade comprises a blade root, a blade profile and a blade top, wherein the blade root, the blade profile and the blade top are fixedly connected sequentially and are manufactured into an integral body; a mounting base is fixedly connected below the blade root; a wind catcher is further arranged on the blade root; the wind catcher comprises a bottom plate and a wing plate; the wing plate and the bottom plate are connected; a 90-degree of below included angle is formed between the wing plate and the bottom plate; the bottom plate is fixed to the blade root; at least one air guide groove is formed in the surface of the blade profile; and at least one auxiliary blade is fixedly connected on the blade top. According to the efficient titanium alloy turbine blade, at least one auxiliary blade is fixedly connected on the blade top, and through the mutual cooperation of the auxiliary blades, the wind catcher and the air guide grooves, the conversion efficiency for converting steam energy to mechanical work can be greatly improved, so that the working efficiency of a turbine is improved.

Description

technical field [0001] The invention relates to a titanium alloy high-efficiency steam turbine blade, which belongs to the technical field of power generation equipment. Background technique [0002] A steam turbine is a rotating power machine that converts the energy of steam into mechanical work. Also known as steam turbine. It is mainly used as a prime mover for power generation, and can also directly drive various pumps, fans, compressors and ship propellers. It is also possible to use the exhaust steam or intermediate steam extraction of the steam turbine to meet the heating needs of production and life. [0003] The steam turbine blade is an important part of the steam turbine generator set. The steam turbine blades commonly used in the market generally improve the working efficiency by changing the shape of the blade, but the effect is not obvious, and the maximum working efficiency of the blade has not been exerted. And the existing steam turbine The blades are ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D5/30F01D5/14C22C14/00C22C1/02B22C9/28
CPCB22C9/28C22C1/02C22C14/00F01D5/14F01D5/30F05D2230/90F05D2240/125F05D2300/133
Inventor 刘达王河平宗国翼
Owner 南京赛达科技有限公司