CN110404702A - A kind of turbine blade erosion spraying protective device - Google Patents
A kind of turbine blade erosion spraying protective device Download PDFInfo
- Publication number
- CN110404702A CN110404702A CN201910813970.6A CN201910813970A CN110404702A CN 110404702 A CN110404702 A CN 110404702A CN 201910813970 A CN201910813970 A CN 201910813970A CN 110404702 A CN110404702 A CN 110404702A
- Authority
- CN
- China
- Prior art keywords
- soft metal
- type bracket
- bolt
- protective device
- masking
- 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.)
- Pending
Links
- 238000005507 spraying Methods 0.000 title claims abstract description 21
- 230000003628 erosive effect Effects 0.000 title claims abstract description 19
- 230000001681 protective effect Effects 0.000 title claims abstract description 16
- 230000000873 masking effect Effects 0.000 claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 27
- 239000007921 spray Substances 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract description 9
- 238000000576 coating method Methods 0.000 abstract description 9
- 230000003068 static effect Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000010285 flame spraying Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001347 Stellite Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
- B05B12/20—Masking elements, i.e. elements defining uncoated areas on an object to be coated
- B05B12/29—Masking elements, i.e. elements defining uncoated areas on an object to be coated with adjustable size
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F15/00—Other methods of preventing corrosion or incrustation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
A kind of turbine blade erosion spraying protective device, including G type bracket and soft metal masking；Soft metal masking is bonded along the turbine blade molded line that need to protect before spraying, adjust to the torsion structure of itself and blade it is sturdy after, with G type bracket fastening soft metal masking, masking is completed；Protective device structure of the present invention is simple, and compact is not limited by construction location, space, easy for installation, improves coating quality and efficiency；Soft metal masking can be adjusted according to protective position molded line to be sprayed, guaranteed that coating uniform is distributed in and formulated in region, meet the static and dynamic equilibrium requirement of turbine rotor.
Description
Technical field
The invention belongs to turbine blade erosion protection technology fields, and in particular to a kind of turbine blade erosion spraying is anti-
Shield uses device.
Background technique
With the continuous development of power industry, the major grid power load peak-valley difference in China increases year by year, and each power grid is both needed to
Increase the fm capacity of Large-scale machine set, this just forces unit to run under off-design behaviour, so as to cause exhaust stage blade operating condition
More and more severe, water erosion region also extends to back edge, water erosion range further expansion, degree of water erosion from blade inlet edge
Aggravation deteriorates.With the aggravation of degree of water erosion, the length for being brazed stellite alloy sheet also increases, the heat input in repair process
Amount becomes larger, and caused contraction distortion is difficult to ensure the installation accuracy of blade during REPAIR WELDING, is brazed stellite alloy sheet
Method be not suitable for the exhaust stage blade water erosion under depth peak regulation operating condition protection.
For supersonic flame spraying technology as metal part surface preventive means, construction is flexible, scene can be achieved, factory's spirit
Operation living.Last stage vane of steam turbine surface strengthen using supersonic flame spraying, service life can be improved, and can be right
Blade is repeatedly sprayed, and since base material temperature is low, does not damage original performance of base material.In addition, coating is relatively thin, blade is constant
Shape, the turbine rotor after spraying do not influence static and dynamic equilibrium.Therefore, continually developing with sprayed on material, supersonic speed fire
Flame spraying technology is more and more used for last stage vane of steam turbine water erosion casing pipe protection.
The melted powder line formed when supersonic flame spraying is radial, and last stage vane of steam turbine is mostly twist-tie
Structure, molded line is complicated and random, and for the static and dynamic equilibrium requirement for guaranteeing turbine rotor after spraying, coating must be evenly distributed in
It formulates in region, therefore, it is necessary to cover to non-spraying region and adjacent blades, spraying line is avoided to be deposited on unnecessary area
In domain.
To sum up, it is the static and dynamic equilibrium requirement for guaranteeing turbine rotor after spraying, needs to develop a kind of spraying shielding device, protect
Card coating uniform, which is distributed in, to be formulated in region.
Summary of the invention
To solve the above-mentioned problems of the prior art, the purpose of the present invention is to provide a kind of sprays of turbine blade erosion
Protective device is applied, which can guarantee that coating uniform is distributed in formulation region when spraying, to guarantee steamer after spraying
The static and dynamic equilibrium requirement of machine rotor.
In order to achieve the above object, the present invention adopts the following technical scheme:
A kind of turbine blade erosion spraying protective device, including G type bracket 1 and soft metal masking 2；
The G type bracket 1 includes nut 1-1, bolt 1-2, rocking bar 1-3 and disk 1-4；
The nut 1-1 is welded in the top of G type bracket 1；
The disk 1-4 is welded in the bottom end of G type bracket 1；
The nut 1-1 for being placed in 1 top of the G type bracket and disk 1-4 for being placed in 1 bottom end of G type bracket is concentric position up and down
It sets；
The bolt 1-2 passes through nut 1-1；
The screw tip of the bolt 1-2 opens aperture 1-5；
The rocking bar 1-3 is connected by aperture 1-5 with bolt 1-2；
Soft metal masking 2, which is placed in blade to be sprayed, needs hidden position, according to needing hidden position molded line to adjust soft metal
Masking 2 guarantees that the torsion structure of itself and blade is sturdy；Soft metal masking 2 is connected between the head of bolt 1-2 and disk 1-4.
The head of the bolt 1-2 is provided with disk 1-4 shape adaptation for being clamped the snap-gauge of soft metal masking 2.
The soft metal masking 2 is aluminum alloy flake, waits for that hidden position adjusts when size is according to spraying.
The present invention has the advantage that
1) apparatus of the present invention structure is simple, compact, is not limited by construction location, space, easy for installation, improves spraying
Quality and efficiency.
2) apparatus of the present invention are soft metal masking, can be adjusted shape and size according to protective position molded line to be sprayed,
Guarantee that coating uniform is distributed in formulate in region, meets the static and dynamic equilibrium requirement of turbine rotor.
Detailed description of the invention
Fig. 1 is that a kind of turbine blade erosion of the present invention sprays protective device schematic diagram.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, a kind of turbine blade erosion of the present invention sprays protective device, including G type bracket 1 and soft gold
Belong to masking 2；The G type bracket 1 includes nut 1-1, bolt 1-2, rocking bar 1-3 and disk 1-4；The nut 1-1 is welded in G
The top of type bracket 1；The disk 1-4 is welded in the bottom end of G type bracket 1；The nut 1-1 for being placed in 1 top of G type bracket and
The disk 1-4 for being placed in 1 bottom end of G type bracket is upper and lower concentric position；The bolt 1-2 passes through nut 1-1；The bolt 1-2's
Screw tip opens aperture 1-5；The rocking bar 1-3 is connected by aperture 1-5 with bolt 1-2；The soft metal masking 2 is placed in be painted
Applying blade needs hidden position, according to hidden position molded line adjustment soft metal masking 2 is needed, guarantees that the torsion structure of itself and blade pastes
It is real；Soft metal masking 2 is connected between the head of bolt 1-2 and disk 1-4.
As the preferred embodiment of the present invention, the head of the bolt 1-2 is provided with the use with disk 1-4 shape adaptation
In the snap-gauge of clamping soft metal masking 2, convenient for clamping soft metal masking 2.
As the preferred embodiment of the present invention, the soft metal masking 2 is aluminum alloy flake, is waited for when size is according to spraying
Hidden position adjustment.
The installation and use process of apparatus of the present invention are as follows: by soft metal masking 2 along the turbine blade molded line for needing to protect
It is bonded, the torsion structure adjusted to itself and blade is sturdy, G type bracket 1 is stuck in soft metal masking 2, the head of bolt 1-2
Portion and disk 1-4 are contacted with soft masking metal 2 respectively, are rotated bolt 1-2 by rocking bar 1-3, are adjusted tightly solid to G type bracket 1
Surely soft metal masking 2 is lived.Multiple G type brackets can be used until reaching screening effect in one hidden position.Protective device installation
After the completion, only exposed area to be sprayed.When spraying application, spraying line is deposited to exposed locations and protective device to be sprayed
On, after spraying, protective device is removed, only leaves specific zone of protection inner coating, the partial coating steam turbine last stage leaf
Water erosion resistent effect is played in piece operation, and does not influence the static and dynamic equilibrium of turbine rotor.
Claims (3)
1. a kind of turbine blade erosion sprays protective device, it is characterised in that: hidden including G type bracket (1) and soft metal
Cover (2)；
The G type bracket (1) includes nut (1-1), bolt (1-2), rocking bar (1-3) and disk (1-4)；
The nut (1-1) is welded in the top of G type bracket (1)；
The disk (1-4) is welded in the bottom end of G type bracket (1)；
The nut (1-1) for being placed in G type bracket (1) top and be placed in G type bracket (1) bottom end disk (1-4) be it is upper similarly hereinafter
Heart position；
The bolt (1-2) passes through nut (1-1)；
The screw tip of the bolt (1-2) opens aperture (1-5)；
The rocking bar (1-3) is connected by aperture (1-5) with bolt (1-2)；
The soft metal masking (2), which is placed in blade to be sprayed, needs hidden position, hides according to needing hidden position molded line to adjust soft metal
(2) are covered, guarantee that the torsion structure of itself and blade is sturdy；2) soft metal masking is connected to head and disk (1-4) of bolt (1-2)
Between.
2. a kind of turbine blade erosion according to claim 1 sprays protective device, it is characterised in that: the bolt
The head of (1-2) is provided with disk (1-4) shape adaptation for being clamped the snap-gauge of soft metal masking (2).
3. a kind of turbine blade erosion according to claim 1 sprays protective device, it is characterised in that: the soft gold
Belonging to masking (2) is aluminum alloy flake, waits for that hidden position adjusts when size is according to spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910813970.6A CN110404702A (en) | 2019-08-30 | 2019-08-30 | A kind of turbine blade erosion spraying protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910813970.6A CN110404702A (en) | 2019-08-30 | 2019-08-30 | A kind of turbine blade erosion spraying protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110404702A true CN110404702A (en) | 2019-11-05 |
Family
ID=68369453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910813970.6A Pending CN110404702A (en) | 2019-08-30 | 2019-08-30 | A kind of turbine blade erosion spraying protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110404702A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100075051A1 (en) * | 2008-09-24 | 2010-03-25 | Curtis William Darling | Method and apparatus for a shield blade |
| CN203540859U (en) * | 2013-09-18 | 2014-04-16 | 福建省马尾造船股份有限公司 | Stainless steel sand-cut/coating protection tool |
| CN207839244U (en) * | 2017-12-26 | 2018-09-11 | 山东美晨工业集团有限公司 | A kind of gluing positioning protective device |
| CN210496898U (en) * | 2019-08-30 | 2020-05-12 | 西安热工研究院有限公司 | Tool for protecting turbine blade from water erosion spraying |
-
2019
- 2019-08-30 CN CN201910813970.6A patent/CN110404702A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100075051A1 (en) * | 2008-09-24 | 2010-03-25 | Curtis William Darling | Method and apparatus for a shield blade |
| CN203540859U (en) * | 2013-09-18 | 2014-04-16 | 福建省马尾造船股份有限公司 | Stainless steel sand-cut/coating protection tool |
| CN207839244U (en) * | 2017-12-26 | 2018-09-11 | 山东美晨工业集团有限公司 | A kind of gluing positioning protective device |
| CN210496898U (en) * | 2019-08-30 | 2020-05-12 | 西安热工研究院有限公司 | Tool for protecting turbine blade from water erosion spraying |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |