CN206707771U - A kind of marine turbing erosion resistance movable vane piece - Google Patents

A kind of marine turbing erosion resistance movable vane piece Download PDF

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Publication number
CN206707771U
CN206707771U CN201720509145.3U CN201720509145U CN206707771U CN 206707771 U CN206707771 U CN 206707771U CN 201720509145 U CN201720509145 U CN 201720509145U CN 206707771 U CN206707771 U CN 206707771U
Authority
CN
China
Prior art keywords
blade body
movable vane
vane piece
section
erosion resistance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201720509145.3U
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Chinese (zh)
Inventor
来国炎
来君
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Genyuan Steam Turbine Blade Co Ltd
Original Assignee
Hangzhou Genyuan Steam Turbine Blade Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Genyuan Steam Turbine Blade Co Ltd filed Critical Hangzhou Genyuan Steam Turbine Blade Co Ltd
Priority to CN201720509145.3U priority Critical patent/CN206707771U/en
Application granted granted Critical
Publication of CN206707771U publication Critical patent/CN206707771U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of turbine blade is the utility model is related to, more particularly, to a kind of marine turbing erosion resistance movable vane piece.Its movable vane piece mainly present in solution prior art is when in use because the angle of rotation is larger, and stress is larger, and so as to which the erosion being subject to is also larger, therefore service life is shorter, when can not use in first pressure level, the technical problem of the higher grade of production cost.The utility model includes blade body(1), described blade body(1)On both sides of the middle be provided with groove(2), the bottom of blade body is provided with breach(3), the section on the top of blade body is crescent, and the line at crescent moon both ends and the angle α of plane are 10 14 °, and the section of blade body indentation, there is the quadrangle being obliquely installed.

Description

A kind of marine turbing erosion resistance movable vane piece
Technical field
A kind of turbine blade is the utility model is related to, more particularly, to a kind of marine turbing erosion resistance movable vane piece.
Background technology
Steam turbine blade is mounted on turbine rotor, and produces moment of torsion under the vapor action of HTHP, is made The important component of turbine rotor high-speed rotation.Chinese patent discloses a kind of final stage moving blade of feed pump industrial steam turbine (Publication number:CN106256993A), a kind of final stage moving blade of feed pump industrial steam turbine, including be sequentially connected blade root, Blade and for making blade form the shroud of whole circle self-locking, blade is provided with lacing wire boss, and the molded line of blade is variable cross-section distortion type Line, have relative torsion between the two neighboring section of blade, along blade root to shroud short transverse, with blade with respect to the high H of leaf by 0% monotonicallys increase up to 100%, and the pitch to chord length in tea residue section to leaf top section is than T/b changing rule:0.2≤T/b≤ 1.0, the pitch from tea residue section to leaf top section is than T/B changing rule with blade profile section axial width:0.2≤T/B≤ 4.0;Pitch from tea residue section to leaf top section is than T/Dmax changing rule with blade profile section maximum gauge:2.4≤T/ Dmax≤17.6;Pitch from tea residue section to leaf top section is than T/A changing rule with blade profile area of section:0.02≤T/A ≤0.3;Blade profile leading-edge radius R0 changing rules from tea residue section to leaf top section are:1.6mm≤R0≤2.2mm;From tea residue The blade profile trailing edge radius R1 changing rules of section to leaf top section are:0.7mm≤R1≤1.1mm.But this movable vane piece makes Used time, stress was larger because the angle of rotation is larger, and so as to which the erosion being subject to is also larger, therefore service life is shorter, can not make In used time first pressure level, production cost is higher.
Utility model content
The utility model is to provide a kind of marine turbing erosion resistance movable vane piece, and it is mainly solved present in prior art Movable vane piece when in use because the angle of rotation is larger, stress is larger, so as to which the erosion being subject to is also larger, therefore service life It is shorter, when can not use in first pressure level, the technical problem of the higher grade of production cost.
Above-mentioned technical problem of the present utility model is mainly what is be addressed by following technical proposals:
A kind of marine turbing erosion resistance movable vane piece of the present utility model, including blade body, described blade body On both sides of the middle is provided with groove, and the bottom of blade body is provided with breach, and the section on the top of blade body is crescent, and crescent moon The line at both ends and the angle α of plane are 10-14 °, and the section of blade body indentation, there is the quadrangle being obliquely installed.Angle α It can be 12 °, after setting this angle, when rotated, the steam erosion area that it is subject to is smaller, therefore resistance to punching for whole movable vane piece The effect of erosion is preferable, and service life lengthens significantly.
Preferably, the bottom surface of described blade body is provided with guiding gutter, the width of the bottom surface of guiding gutter is open less than it Width.By guiding gutter, blade body when rotated, can carry out water conservancy diversion, such steam will not be in large area to some vapor Blade body is contacted, so that movable vane piece can increase the service life.
Preferably, the upper end of described groove is provided with protuberance, the outer surface of protuberance is provided with cutting groove, and cutting groove is Triangle, fin is provided with it.By cutting groove the air-flow of steam can be cut open come, so that a part of steam will not Directly impinge in movable vane piece so that the erosion resistant effect of movable vane piece is preferable.
Therefore, the blade angle that the utility model is set is best angle so that the erosion that movable vane piece is subject to when rotated It is smaller, therefore service life is longer, when can use in first pressure level, production cost is relatively low, simple and reasonable for structure.
Brief description of the drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is Fig. 1 A-A cross-sectional views;
Accompanying drawing 3 is Fig. 1 B-B cross-sectional views;
Accompanying drawing 4 is Fig. 1 C-C cross-sectional views;
Accompanying drawing 5 is a kind of structural representation of the utility model guiding gutter;
Accompanying drawing 6 is a kind of structural representation of the utility model protuberance.
Parts, position and numbering in figure:Blade body 1, groove 2, breach 3, guiding gutter 4, protuberance 5, cutting groove 6, Fin 7.
Embodiment
Below by embodiment, and with reference to accompanying drawing, the technical solution of the utility model is described in further detail.
Embodiment:A kind of marine turbing erosion resistance movable vane piece of this example, as shown in Figure 1, Figure 2, including blade body 1, blade The on both sides of the middle of body is provided with groove 2, and the bottom of blade body is provided with breach 3, and such as Fig. 3, the section on the top of blade body is Crescent, and the line at crescent moon both ends and the angle α of plane are 12 °, and such as Fig. 4, the section of blade body indentation, there is inclination The quadrangle of setting.Such as Fig. 5, the bottom surface of blade body is provided with guiding gutter 4, and the width of the bottom surface of guiding gutter is less than its opening width Degree.Such as Fig. 6, the upper end of groove is provided with protuberance 5, and the outer surface of protuberance is provided with cutting groove 6, and cutting groove is triangle, in it Provided with fin 7.
In use, the utility model is encased in the rotor of steam turbine.
Specific embodiment of the utility model is the foregoing is only, but architectural feature of the present utility model is not limited to This, any those skilled in the art in field of the present utility model, all cover in this practicality newly by the change or modification made Among the scope of the claims of type.

Claims (3)

1. a kind of marine turbing erosion resistance movable vane piece, including blade body(1), it is characterised in that described blade body(1) On both sides of the middle be provided with groove(2), the bottom of blade body is provided with breach(3), the section on the top of blade body is crescent, And the line at crescent moon both ends and the angle α of plane are 10-14 °, and the section of blade body indentation, there is four sides being obliquely installed Shape.
A kind of 2. marine turbing erosion resistance movable vane piece according to claim 1, it is characterised in that described blade body (1)Bottom surface be provided with guiding gutter(4), the width of the bottom surface of guiding gutter is less than its A/F.
A kind of 3. marine turbing erosion resistance movable vane piece according to claim 1 or 2, it is characterised in that described groove (2)Upper end be provided with protuberance(5), the outer surface of protuberance is provided with cutting groove(6), cutting groove is triangle, and it is interior provided with convex Rib(7).
CN201720509145.3U 2017-05-09 2017-05-09 A kind of marine turbing erosion resistance movable vane piece Expired - Fee Related CN206707771U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720509145.3U CN206707771U (en) 2017-05-09 2017-05-09 A kind of marine turbing erosion resistance movable vane piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720509145.3U CN206707771U (en) 2017-05-09 2017-05-09 A kind of marine turbing erosion resistance movable vane piece

Publications (1)

Publication Number Publication Date
CN206707771U true CN206707771U (en) 2017-12-05

Family

ID=60465744

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720509145.3U Expired - Fee Related CN206707771U (en) 2017-05-09 2017-05-09 A kind of marine turbing erosion resistance movable vane piece

Country Status (1)

Country Link
CN (1) CN206707771U (en)

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20171205

Termination date: 20200509