KR20150126489A - Vane jig of gas turbine for LVPS coating - Google Patents

Vane jig of gas turbine for LVPS coating Download PDF

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Publication number
KR20150126489A
KR20150126489A KR1020140053428A KR20140053428A KR20150126489A KR 20150126489 A KR20150126489 A KR 20150126489A KR 1020140053428 A KR1020140053428 A KR 1020140053428A KR 20140053428 A KR20140053428 A KR 20140053428A KR 20150126489 A KR20150126489 A KR 20150126489A
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KR
South Korea
Prior art keywords
vane
base block
coating
fixing
gas turbine
Prior art date
Application number
KR1020140053428A
Other languages
Korean (ko)
Inventor
이상림
김승환
장문수
Original Assignee
한전케이피에스 주식회사
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Application filed by 한전케이피에스 주식회사 filed Critical 한전케이피에스 주식회사
Priority to KR1020140053428A priority Critical patent/KR20150126489A/en
Publication of KR20150126489A publication Critical patent/KR20150126489A/en

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

The present invention relates to a vane jig of a gas turbine for LVPS coating which fixes a vane and connects the vane to a rotating device so that the vane of a gas turbine exposed to high-temperature and high-pressure combustion gas to have coating removed therefrom can be coated again inside an LVPS coating device. The vane jig of a gas turbine for VPS coating according to an embodiment of the present invention comprises: a base block molded and manufactured to correspond to the shape and angle of a shroud outside the vane of a gas turbine and sliding and inserting a vane to be coated; a fixing bolt for fixing the vane, which has been slid and inserted into the base block, onto the base block; a connection axis installed and fixed to the base block via welding to connect the vane, which has been fixed to the base block by the fixing bolt, to the rotating device; a guide plate installed and fixed to both side surfaces, where the vane is slid and inserted into the base block, and a side surface, to which the fixing nut is coupled, to be able to be attached and detached; a masking cover combined with the guide plate to prevent coating powder from being adsorbed to a part except for the gas path of the vane to be coated inside the LVPS coating device; and a fixing pin for fixing the masking cover to prevent the separation of the masking cover combined with the guide plate.

Description

Vane jig of gas turbine for LVPS coating < RTI ID = 0.0 >

The present invention relates to a vane jig for a gas turbine for LVPS coating, and more particularly, to a vane jig for a gas turbine in which a coating is removed for a long time by exposure to high temperature, high pressure combustion gas, To a vane jig for a gas turbine for LVPS coating in which a vane is fixed and connected to a rotating device.

Generally, a gas turbine is mainly used for a generator, a locomotive, a ship, an airplane, etc., and mixes fuel injected through a fuel nozzle and compressed air generated from a compressor in a combustion chamber to generate high- The combustion gas is introduced to obtain the power.

Such a gas turbine receives a combustion gas from a vane and rotates a blade at a high speed. A vane is a superalloy material having high durability at a high temperature. The gas turbine passes through a gas passage through which a combustion gas passes, Barrier Coating prevents heat damage, but due to the operating characteristics of the gas turbine, the coating is damaged by fatigue and thermal difference due to repeated start and stop.

In order to restore the vane having a damaged coating to a circular shape, the coating is sprayed on the vane while the vane is rotated in the coating equipment after removing the existing coating.

However, since the coating powder is sprayed while rotating the vane in the coating equipment, there is a problem that the coating powder is adsorbed on the portion other than the gas passage of the vane, and the coating thickness and structure are not uniform. Therefore, It is necessary to use a coated paper that can be operated as a paper.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an LVPS coating system in which a vane of a gas turbine in which a coating is removed by exposure to a high temperature and high pressure combustion gas for a long time, And to provide a vane jig for a coating gas turbine.

It is an object of the present invention to provide a vane jig for a gas turbine for LVPS coating that fixes a vane to a rotating device so that a gas passage of a vane can be coated while rotating a vane of a gas turbine inside an LVPS coating equipment, A fixing bolt for fixing the vane slidably inserted into the base block on the base block, and a fixing bolt for fixing the vane to the base by the fixing bolt, A connecting shaft fixedly welded to the base block so as to be connected to the rotating device, and a guide member fixedly installed on both sides of the base block on which the vane is slidably inserted and the side where the fixing nut is fastened, Plate, a gas passage of the vane to be coated inside the LVPS coating equipment And a fixing pin for fixing the masking cover so as to prevent the masking cover from being separated from the guide plate. The masking cover according to claim 1, This is achieved by providing a vane jig of a gas turbine for LVPS coating.

According to a preferred aspect of the present invention, the base block has a through hole formed therethrough so that the fixing bolt can be inserted into a portion where the hook hole of the vane to be slidably engaged is inserted, and both side surfaces, in which the vane is slidably inserted, And a plurality of fastening holes are formed on the side surface of the guide plate so that the guide plate can be engaged.

According to a preferred aspect of the present invention, the guide plate is formed with a coupling groove through which bolts can be coupled to the respective side surfaces of the base block, and a rivet is provided so as to be spaced apart from the coupling groove, And is protruded.

According to a preferred feature of the present invention, the rivet is formed with a fixing groove through which the fixing pin is inserted so that the masking cover can be fixed.

According to the vane jig of the gas turbine for LVPS coating according to the present invention as described above, the vane of the gas turbine, from which the coating is removed by the high-temperature, high-pressure combustion gas, is slidably inserted and fixed, As a result of the structure, it is possible to smoothly re-coat the vanes in the LVPS coating equipment and to coat only the parts where coating is required.

1 is a perspective view of a vane jig of a gas turbine for LVPS coating according to an embodiment of the present invention;
2 is an exploded perspective view of a vane jig of a gas turbine for LVPS coating according to one embodiment of the present invention.
3 is a use state view of a vane jig of a gas turbine for LVPS coating according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be described in detail so that those skilled in the art can easily carry out the present invention , And this does not mean that the technical idea and scope of the present invention are limited.

A vane jig (1) of a gas turbine for LVPS coating according to a preferred embodiment of the present invention rotates a vane of a gas turbine inside a LVPS coating equipment while rotating a vane of a gas turbine, A vane jig for a gas turbine for LVPS coating that fixes a vane to an apparatus, comprising: a base block (10) formed to be slidably inserted into a vane to be coated and formed so as to conform to the shape and angle of a vane outer shroud of a gas turbine; A fixing bolt 20 for fixing the vane slidably inserted into the base block 10 and a fixing bolt 20 fixed to the side of the base block 10 opposite to where the vane is slidably inserted and welded to rotate the base block 10 A connecting shaft 30 connecting the base block 10 to the apparatus and detachably fixed to both sides of the base block 10 on which the vane is slidably inserted and the side where the fixing nut 20 is fastened, A guide plate 40 and a masking cover 50 coupled to the guide plate 40 to prevent the coating powder from being adsorbed to portions other than the gas passages of the vanes to be coated in the LVPS coating equipment, And a fixing pin 60 for fixing the masking cover 50 so as to prevent the separation of the masking cover 50 coupled to the masking cover 50.

Hereinafter, the constituent members of the vane jig 1 of the gas turbine for LVPS coating according to one preferred embodiment of the present invention and the connection relationship thereof will be described with reference to FIGS. 1 and 2. FIG.

Here, the base block 10 is operatively installed with constituent members including a fixing bolt 20 to be described later, and serves to slidably insert the vane to be coated with the gas passage by the LVPS coating equipment. The LVPS It is preferable that the vane to be coated by the coating equipment is molded and manufactured in accordance with the shape and angle of the outer shroud of the vane so that the vane can be slidably inserted.

In the above-described base block 10, a through hole 11 is formed in a portion where the hook hole of the vane to be slidably engaged is inserted so that a fixing bolt 20 to be described later can be inserted and fastened, A plurality of fastening holes 12 are formed on both side surfaces of the slidably inserted side and side surfaces of fastening bolts to be described later so that the guide plates 40 to be described later can be coupled.

At this time, it is preferable that the engaging groove 12 is formed with a thread on the inner side so that the guide plate 40 to be explained later can be fastened by a bolt.

A fixing bolt 20 is inserted into the through hole 11 of the base block 10 so that the fixing bolt 20 is fastened to the hook hole of the vane slidably inserted into the base block 10, 10). ≪ / RTI >

That is, the fixing bolts 20 described above are fixed inside the LVPS coating equipment so that the vanes are not separated from the base block 10 rotated by the rotating device during coating.

The connection shaft 30 is integrally fixed to the side surface of the base block 10 on the side opposite to where the vane is slidably inserted by welding. The connection shaft 11 connects the base block 10 to the rotating device .

More specifically, the above-described connecting shaft 30 can be formed in such a manner that the vane jig 1 of the gas turbine according to the present invention rotates in such a manner that the end of the vane jig 1 can be uniformly rotated while the gas passage of the vane is rotated, And is connected to the chuck of the device.

The guide plate 40 is fixed to the coupling grooves 12 formed on the respective side surfaces of the base block 10 by bolts. And is fixed to both side surfaces of the base block 10 to which the vane is slidably inserted and side surfaces on which the above-described fixing bolts 20 fastened to the hook holes of the vanes are positioned.

At this time, the guide plates 40 coupled to the respective side surfaces of the above-described base block 10 are preferably formed and shaped so as to conform to the respective side shapes.

The guide plate 40 is formed with an engaging groove 41 through which the bolt can be engaged at a position to be engaged with the engaging groove 12 of the base block 10, A rivet 42 is integrally formed to protrude so that the masking cover 50 to be described can be fixed. At this time, the fixing groove 42a is formed in the rivet 42 so that the fixing pin 60 to be described later can be inserted.

The masking cover 50 is attached to the rivet 42 of the guide plate 40. The masking cover 50 covers the outer side of the base block 10 to cover the inside of the LVPS coating equipment, And a support groove 51 is formed on the masking cover 50. The support groove 51 is engaged with the rivet 42 of the guide plate 40 to support the coating powder on the masking cover 50 .

The fixing pin 60 is inserted into the fixing groove 42a formed in the rivet 42 of the guide plate 40. The fixing pin 60 is supported by the rivet 42 of the guide plate 40 And serves to fix the masking cover 50.

The fixing pin 60 is formed in the shape of a conventional hair pin and is supported by an elastic force in a fixing groove 42a formed in the rivet 42 of the guide plate 40 described above.

Hereinafter, an overall installation method of the vane jig 1 for a gas turbine for LVPS coating according to a preferred embodiment of the present invention will be described with reference to FIG.

First, the vane to be coated is slidably inserted into the base block 10, and at this time, the through hole of the base block 10 and the hook hole of the vane are positioned to communicate with each other.

Then, the fixing bolt 20 is passed through the through hole 11 of the base block 10, which is positioned to communicate with the hook hole of the vane, and is fastened to the hook hole of the vane. At this time, the vane slidingly inserted in the base block 10 is fixed to the base block 10 by the fixing bolts 20.

The bolts are fastened to the fastening grooves 12 after the engaging grooves 41 of the guide plate 40 are brought into communication with the fastening grooves 12 formed on the side surfaces of the respective base blocks 10.

When the guide plate 40 is fixed to each side of the base block 10, the support groove 51 of the masking cover 50 is inserted into the rivet 42 protruding from the guide plate 40, The fixing pin 60 is inserted into the fixing groove 42a formed in the outer circumference of the guide plate 40 to fix the masking cover 50 to the outside of the guide plate 40. [

Then, the connecting shaft 20 fixed by welding to the base block 10 is connected to the rotating device so that the coating operation can be performed inside the LVPS coating equipment.

1: jig
10: base block
11: Through hole
12: fastening hole
20: Fixing bolt
30: Connection axis
40: guide plate
41: Coupling groove
42: Rivet
42a: Fixing groove
50: Masking cover
52: Support groove
60: Fixing pin

Claims (4)

A vane jig for a gas turbine for LVPS coating in which a vane is fixed to a rotating device so that a gas passage of a vane can be coated while a vane of a gas turbine is rotated inside an LVPS coating equipment,
A base block formed to be shaped and angled with an outer shroud shape and angle of the vane of the gas turbine to slidely insert a vane to be coated;
A fixing bolt for fixing the vane slidingly inserted into the base block on the base block;
A connecting shaft fixedly welded to the base block so as to be coupled to the rotating device, the vane being fixed to the base block by the fixing bolt;
A guide plate detachably fixed to both sides of the base block through which the vane is slidably inserted and to a side where the fixing nut is fastened;
A masking cover coupled to the guide plate to prevent the coating powder from being adsorbed to a portion other than the gas passage of the vane to be coated in the LVPS coating equipment; And
And a fixing pin for fixing the masking cover to prevent the masking cover from being separated from the guide plate, the masking cover being coupled to the guide plate.
The method according to claim 1,
The base block has a through hole formed therethrough so that the fixing bolt can be inserted into a portion where the hook hole of the vane is to be slidably engaged. The guide block is coupled to both sides of the vane slidably inserted, Wherein a plurality of fastening holes are formed in the vane jig for LVPS coating.
The method according to claim 1,
Wherein the guide plate is formed with an engaging groove through which bolts can be coupled to the respective side surfaces of the base block and a rivet is protruded so as to be spaced apart from the engaging groove and to fix the masking cover. Vane jig for coating gas turbines.
The method of claim 3,
Wherein the rivet has a fixing groove formed therethrough for inserting the fixing pin so that the masking cover can be fixed to the bending jig of the gas turbine.
KR1020140053428A 2014-05-02 2014-05-02 Vane jig of gas turbine for LVPS coating KR20150126489A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140053428A KR20150126489A (en) 2014-05-02 2014-05-02 Vane jig of gas turbine for LVPS coating

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Application Number Priority Date Filing Date Title
KR1020140053428A KR20150126489A (en) 2014-05-02 2014-05-02 Vane jig of gas turbine for LVPS coating

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108060944A (en) * 2017-12-11 2018-05-22 大连通亚重工有限公司 Automobile-used radial-flow turbine
CN108087040A (en) * 2017-12-11 2018-05-29 大连通亚重工有限公司 Radial-flow turbine
KR102252487B1 (en) 2020-12-07 2021-05-14 한전케이피에스 주식회사 Jig for gas turbine blade coating
CN113171946A (en) * 2020-01-27 2021-07-27 维斯塔斯风力***有限公司 Coater tool and method for repairing leading edge damage on wind turbine blades
KR102507407B1 (en) 2022-12-09 2023-03-08 터보파워텍(주) Fixture for thermal barrier coating of hot gas path parts by 3D printing laser cladding
KR102586698B1 (en) * 2022-12-28 2023-10-11 한전케이피에스 주식회사 LVPS(Low Vacuum Plasma Spray System) COATING SYSTEM OF GAS TURBINE HIGH-TEMPERATURE COMPONENTS AND METHOD FOR CONTOLLING THE SAME

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108060944A (en) * 2017-12-11 2018-05-22 大连通亚重工有限公司 Automobile-used radial-flow turbine
CN108087040A (en) * 2017-12-11 2018-05-29 大连通亚重工有限公司 Radial-flow turbine
CN108087040B (en) * 2017-12-11 2019-10-01 大连理创科技有限公司 Radial-flow turbine
CN113171946A (en) * 2020-01-27 2021-07-27 维斯塔斯风力***有限公司 Coater tool and method for repairing leading edge damage on wind turbine blades
KR102252487B1 (en) 2020-12-07 2021-05-14 한전케이피에스 주식회사 Jig for gas turbine blade coating
KR102507407B1 (en) 2022-12-09 2023-03-08 터보파워텍(주) Fixture for thermal barrier coating of hot gas path parts by 3D printing laser cladding
KR102586698B1 (en) * 2022-12-28 2023-10-11 한전케이피에스 주식회사 LVPS(Low Vacuum Plasma Spray System) COATING SYSTEM OF GAS TURBINE HIGH-TEMPERATURE COMPONENTS AND METHOD FOR CONTOLLING THE SAME

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