CN102251904A - Cavitation-resistant and energy-saving modification method of water turbine - Google Patents

Cavitation-resistant and energy-saving modification method of water turbine Download PDF

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CN102251904A
CN102251904A CN2011101568988A CN201110156898A CN102251904A CN 102251904 A CN102251904 A CN 102251904A CN 2011101568988 A CN2011101568988 A CN 2011101568988A CN 201110156898 A CN201110156898 A CN 201110156898A CN 102251904 A CN102251904 A CN 102251904A
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cavitation erosion
cavitation
steel
coating
plastic
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CN102251904B (en
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鲁毅
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Shenzhen Bright Electron Technology Co., Ltd.
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Hydraulic Turbines (AREA)

Abstract

The invention provides a cavitation-resistant and energy-saving modification method of a water turbine. The method provided by the invention comprises the following steps: (1) carrying out sand blasting on the whole rotating wheel, blades and the lining of a draft tube and requiring to reach an Sa2.5 level; (2) repairing cavitation pits on the rotating wheel of the water turbine, the blades and the draft tube by adopting a titaniferous stainless steel inlaying method or a polyurethane elastomer scraping method after nails are planted; and (3) coating a nano plastic steel 8103 wear-resistant and cavitation-resistant coating and a nano plastic steel 8102 ultra-smooth coating. The cavitation-resistant and energy-saving modification method provided by the invention is used for repairing the abrasion-resistant and cavitation-resistant components of the water turbine and coating the whole flow passage component, thereby improving the cavitation-resistant and abrasion-resistant capabilities of the water turbine, increasing the power execution and prolonging the overhaul period.

Description

The anti-cavitation erosion of a kind of water turbine energy-conserving reconstruction method
Technical field:
The present invention relates to turbine technology field, be specially the method for the anti-cavitation erosion of a kind of water turbine reducing energy consumption.
Background technique:
Water turbine overflowing component is owing to work long hours and be subjected to silt underwashing, and exists abrasion and cavitation erosion situation the time and mutually promote, and is especially more serious in turbine blade root and the abrasion of draft tube position and cavitation erosion situation.Abrasion and cavitation erosion can reduce exerting oneself of water turbine and efficient, and serious meeting causes blade perforation, and unit produces strong vibration, noise and fluctuation of load, cause the unit can not safe and stable operation.
Existing is when the water turbine units overhaul at the handling that water turbine is denuded and the parts that cavitate are general, adopts built-up welding or metal thermal spraying method to be repaired to lighter cavitation erosion and abrasion position, and bigger cavitation erosion hole does not have too many way.Because water turbine is the core of equipment for hydroelectric station, shutdown maintenance cost height is badly in need of a kind of water turbine that can increase and is resisted cavitation erosion or abrasion ability, the technological scheme of prolonging overhaul period in the industry.
Summary of the invention:
The technical problem to be solved in the present invention provides the anti-cavitation erosion of a kind of water turbine energy-conserving reconstruction method, is used to repair the water turbine parts of being denuded and cavitate, and then improves anti-cavitation erosion of water turbine and abrasion ability, prolonging overhaul period.
For solving the problems of the technologies described above, the anti-cavitation erosion of a kind of water turbine that the present invention adopts energy-conserving reconstruction method comprises the steps:
Step 1, whole runner, blade and draft tube liner are done sand blast, require to reach the Sa2.5 level;
Step 2, employing titaniferous stainless steel inlay method or plant the cavitation erosion hole that nail back blade coating polyurethane elastomer method is repaired rotary wheel of water turbine, blade and draft tube liner;
The stainless steel of titaniferous described in this step inlays method and comprises the steps:
A. clean big cavitation erosion hole through sand blast;
B. get a piece of paper and be attached on the cavitation erosion hole, draw cavitation erosion hole profile with pen;
C. make 321 titanium stainless steel spare parts by paper drawing case, the spare part size should be less than pattern, so that install;
D. implant several screw rods with tapping method or the method for fastening in the hole, the screw rod spacing is no more than 30mm, bores good corresponding hole simultaneously on the titaniferous stainless steel spare part of correspondence;
E. fill whole cavitation erosion hole with receiving plastic-steel 8201 epoxy moulding repair materials;
F., titaniferous stainless steel spare part is installed, is amputated unnecessary screw rod and the welding of its termination and titaniferous stainless steel spare part;
G. titaniferous stainless steel edge is repaired with receiving plastic-steel 8201 epoxy moulding repair materials;
Blade coating described in this step is planted nail polyurethane elastomer method and is comprised the steps:
A. clean cavitation range;
B. with the mode of butt-joint the tack welding of bumping of given shape is connected on cavitation range, it is every square meter 600-1000 that nail density is bumped in welding;
C. spray the primary coat of solvent-borne type epoxy polyamide in cavitation erosion or abrasion zone;
D. be coated with to scrape and receive plastic-steel polyurethane elastomer repair materials;
E. after treating the polyurethane elastomer drying, prune excess stock, finish reparation;
Step 3, be coated with and accommodate the plastic-steel 8103 wear-resisting anti-cavitation erosion coatings and the plastic-steel 8102 superslide coatings of receiving;
Receive the plastic-steel polyurethane elastomer described in this method, each constituent mass percentage is:
Figure BSA00000515534200021
Figure BSA00000515534200031
Each constituent mass percentage of plastic-steel that this method is received 8201 moulding repair materials is:
Figure BSA00000515534200032
Plastic-steel 8103 wear-resisting each the constituent mass percentage of anti-cavitation erosion coating of receiving of the described application of this method are:
Figure BSA00000515534200033
Described each the constituent mass percentage of plastic-steel 8102 superslide coatings of receiving of this method is:
Figure BSA00000515534200034
Plastic-steel 8102 products of receiving of the present invention meet the water hygiene requirement.
In above-mentioned modification scheme, the application zone of anti-cavitation erosion coating and superslide coating comprises runner, blade and draft tube liner, but does not comprise the zone that polyurethane elastomer is repaired.
In above-mentioned modification scheme, the first road coating is wear-resisting anti-cavitation erosion coating, and second road is the superslide coating, and total thickness is the 400-600 micron.
Good effect of the present invention is: the invention provides two kinds of safer reliable cavitation erosions and repair means, these two kinds of means have adopted high performance titaniferous stainless steel and polyurethane elastomeric materials respectively, the base material of itself and water turbine is compared has bigger strength and toughness, and the ability of opposing cavitation erosion and abrasion far surpasses the water turbine base material.
Water turbine after repairing by above-mentioned two kinds of means can change the problem of cavitation erosion abrasion into and change titaniferous stainless steel spare part or blade coating polyurethane elastomer again, and can not damage turbine proper.Owing to all in normal-temperature operation, can as metal thermal spraying and built-up welding, not cause thermal stress in the whole construction course, influence repairing effect.
What repair employing in the most serious zone of cavitation erosion abrasion all is safe means of fixation (screw rod welds, plants nail), guarantees that titaniferous corrosion resistant plate and polyurethane elastomer can not come off, and have guaranteed repairing effect.
The plastic-steel macromolecule of receiving after repair in the district by water turbine is cavitated resists the application of cavitation erosion coating and superslide coating, and dried coating not only can prevent the burn into cavitation erosion, denude by protection equipment, can also improve the efficient of equipment simultaneously, energy saving.
Because the symbiosis of cavitation erosion and abrasion and mutually promoting, the plastic-steel 8102 superslide coatings of receiving can make the smoothness of water turbine flow-passing surface increase, and have also just reduced the local cavitation erosion of the separation of flow that causes because of wetted surfaces is uneven.Because the minimizing of bubble has increased the inflow-rate of water turbine of water turbine, thereby has improved efficient.
Can reduce the border turbulent flow of fluid in course of conveying owing to receive plastic-steel 8102 superslide coatings in addition, be equivalent to reduce the friction of fluid at the water turbine flow-passing surface, the frictional loss of head diminishes, and turbine efficiency is improved.
The plastic-steel 8102 superslide coatings of receiving are made up of liquid epoxies, organic polyamine curing agent, nano lubricating friction-reducing additive, other color stuffing.Nano lubricating friction-reducing additive in the prescription belongs to the core of superslide cladding technique, and nano particle not only has humidification, also has high hydrophobic and slit self-repair function, and the energy-conservation effect of lasting superslide of coating is provided.
The special island two-phase MOLECULE DESIGN of plastic-steel 8103 anti-cavitation erosion coatings of receiving make it that stronger wear-resistant anti-cavitation erosion ability be arranged, and this coating is formulated by low molecular weight liquid epoxy, organic polyamine curing agent, active wear-resisting color stuffing, endurable active toughener.Filming that at first low molecular weight liquid epoxy, organic polyamine are cross-linked to form has high crosslink density, and coating does not contain any solvent, has guaranteed the mechanical strength of coating; Active color stuffing is because energy and curing agent carry out chemical crosslinking, and it is particularly remarkable to strengthen effect; Endurable active toughener makes dried coating form island structure, can to high pressure bubble and rigid particles wash away the formation cushioning effect, increased the anti-cavitation erosion and the erosion resistance of coating.The plastic-steel 8103 of receiving resists the cavitation erosion coatings and receives plastic-steel 8102 superslide coatings can be according to actual conditions stack use or subregion use.
Below be the typical performance of the material that arrives involved in the present invention, it is as follows to use prescription:
Receive the plastic-steel polyurethane elastomer described in this method, each constituent mass percentage is:
Prescription 1.1
Figure BSA00000515534200061
Performance parameter:
Figure BSA00000515534200062
Prescription 1.2
Figure BSA00000515534200063
Performance parameter:
Figure BSA00000515534200071
Prescription 1.3
Figure BSA00000515534200072
Performance parameter:
Figure BSA00000515534200073
Described each the constituent mass percentage of plastic-steel 8201 moulding repair materials of receiving of this method is:
Prescription 2.1
Figure BSA00000515534200074
Figure BSA00000515534200081
Performance parameter:
Test event test data test method
Shear strength 150kg/cm 2ASTM D 1002
Compressive strength 900kg/cm 2ASTM D 695
Abrasion resistance 50mg/1000r ASTM D 4060
Prescription 2.2
Performance parameter:
Test event test data test method
Shear strength 130kg/cm 2ASTM D 1002
Compressive strength 802kg/cm 2ASTM D 695
Abrasion resistance 75mg/1000r ASTM D 4060
Prescription 2.3
Figure BSA00000515534200091
Performance parameter:
Test event test data test method
Shear strength 141kg/cm 2ASTM D 1002
Compressive strength 850kg/cm 2ASTM D 695
Abrasion resistance 59mg/1000r ASTM D 4060
Plastic-steel 8103 wear-resisting each the constituent mass percentage of anti-cavitation erosion coating of receiving of the described application of this method are:
Prescription 3.1
Figure BSA00000515534200092
Figure BSA00000515534200101
Test event test data test method
Shear strength 160kg/cm 2ASTM D 1002
Compressive strength 950kg/cm 2ASTM D 695
Abrasion resistance 47mg/1000r ASTM D 4060
Prescription 3.2
Figure BSA00000515534200102
Test event test data test method
Shear strength 135kg/cm 2ASTM D 1002
Compressive strength 875kg/cm 2ASTM D 695
Abrasion resistance 55mg/1000r ASTM D 4060
Prescription 3.3
Figure BSA00000515534200103
Figure BSA00000515534200111
Test event test data test method
Shear strength 181kg/cm 2ASTM D 1002
Compressive strength 1020kg/cm 2ASTM D 695
Abrasion resistance 37mg/1000r ASTM D 4060
Described plastic-steel 8102 each the constituent mass percentage of receiving of this method are:
Prescription 4.1
Figure BSA00000515534200112
Test event test data test method
Shear strength 179kg/cm 2ASTM D 1002
Compressive strength 970kg/cm 2ASTM D 695
Abrasion resistance 38mg/1000r ASTM D 4060
Prescription 4.2
Figure BSA00000515534200121
Test event test data test method
Shear strength 170kg/cm 2ASTM D 1002
Compressive strength 900kg/cm 2ASTM D 695
Abrasion resistance 42mg/1000r ASTM D 4060
Prescription 4.3
Test event test data test method
Shear strength 205kg/cm 2ASTM D 1002
Compressive strength 1305kg/cm 2ASTM D 695
Abrasion resistance 31mg/1000r ASTM D 4060
Embodiment:
The anti-cavitation erosion of a kind of water turbine provided by the invention energy-conserving reconstruction method comprises the steps:
Step 1, whole runner and blade are done sand blast, require to reach the Sa2.5 level;
Step 2, employing titaniferous stainless steel inlay method or blade coating is planted the cavitation erosion hole that nail polyurethane elastomer method is repaired rotary wheel of water turbine, blade and draft tube liner;
The stainless steel of titaniferous described in this step inlays method and comprises the steps:
A. clean big cavitation erosion hole through sand blast;
B. get a piece of paper and be attached on the cavitation erosion hole, draw cavitation erosion hole profile with pen;
C. make 321 titanium stainless steel spare parts by paper drawing case, the spare part size should be less than pattern, so that install;
D. implant several screw rods with tapping method or the method for fastening in the hole, the screw rod spacing is no more than 30mm, simultaneously
On the titaniferous stainless steel spare part of correspondence, bore good corresponding hole;
E. fill whole cavitation erosion hole with receiving plastic-steel 8201 epoxy moulding repair materials;
F., titaniferous stainless steel spare part is installed, is amputated unnecessary screw rod and the welding of its termination and titaniferous stainless steel spare part;
G. titaniferous stainless steel edge is repaired with receiving plastic-steel 8201 epoxy moulding repair materials;
Blade coating described in this step is planted nail polyurethane elastomer method and is comprised the steps:
A. clean cavitation range;
B. with the mode of butt-joint the tack welding of bumping of given shape is connected on cavitation range, it is every square meter 600-1000 that nail density is bumped in welding;
C. spray the primary coat of solvent-borne type epoxy polyamide in cavitation erosion or abrasion zone;
D. be coated with to scrape and receive plastic-steel polyurethane elastomer repair materials;
E. after treating the polyurethane elastomer drying, prune excess stock, finish reparation;
Step 3, be coated with and accommodate the plastic-steel 8103 wear-resisting anti-cavitation erosion coatings and the plastic-steel 8102 superslide coatings of receiving;
Receive the plastic-steel polyurethane elastomer described in this method, each constituent mass percentage is:
Figure BSA00000515534200141
Described each the constituent mass percentage of plastic-steel 8201 moulding repair materials of receiving of this method is:
Figure BSA00000515534200142
Plastic-steel 8103 wear-resisting each the constituent mass percentage of anti-cavitation erosion coating of receiving of the described application of this method are:
Described plastic-steel 8102 each the constituent mass percentage of receiving of this method are:
Figure BSA00000515534200152
The application zone of anti-cavitation erosion coating and superslide coating comprises runner, blade and draft tube liner, but does not comprise the zone that polyurethane elastomer is repaired.
The first road coating is wear-resisting anti-cavitation erosion coating, and second road is the superslide coating, and total thickness is 400 microns.
This embodiment for a concrete manifestation of technological scheme, is not the qualification to protection domain, and any have the steps characteristic in the patented technology scheme and a scheme of scope feature, all among protection scope of the present invention.

Claims (3)

1. the anti-cavitation erosion of a water turbine energy-conserving reconstruction method is characterized in that: comprise the steps:
Step 1, whole runner, blade and draft tube liner are done sand blast, require to reach the Sa2.5 level;
Step 2, employing titaniferous stainless steel inlay method or plant the cavitation erosion hole that nail back blade coating polyurethane elastomer method is repaired rotary wheel of water turbine, blade and draft tube;
The stainless steel of titaniferous described in this step inlays method and comprises the steps:
A. clean big cavitation erosion hole through sand blast;
B. get a piece of paper and be attached on the cavitation erosion hole, draw cavitation erosion hole profile with pen;
C. make 321 titanium stainless steel spare parts by paper drawing case, the spare part size should be less than pattern, so that install;
D. implant several screw rods with tapping method or the method for fastening in the hole, the screw rod spacing is no more than 30mm, bores good corresponding hole simultaneously on the titanium stainless steel spare part of correspondence;
E. fill whole cavitation erosion hole with receiving plastic-steel 8201 epoxy moulding repair materials;
F., titanium stainless steel spare part is installed, is amputated unnecessary screw rod and the welding of its termination and titanium stainless steel spare part;
G. titanium stainless steel edge is repaired with receiving plastic-steel 8201 epoxy moulding repair materials;
The nail back blade coating polyurethane elastomer method of planting described in this step comprises the steps:
A. clean cavitation range;
B. with the mode of butt-joint the tack welding of bumping of given shape is connected on cavitation range, it is every square meter 600-1000 that nail density is bumped in welding;
C. spray the primary coat of solvent-borne type epoxy polyamide in cavitation erosion or abrasion zone;
D. be coated with to scrape and receive plastic-steel polyurethane elastomer repair materials;
E. after treating the polyurethane elastomer drying, prune excess stock, finish reparation;
Step 3, be coated with and accommodate the plastic-steel 8103 wear-resisting anti-cavitation erosion coatings and the plastic-steel 8102 superslide coatings of receiving;
Receive the plastic-steel polyurethane elastomer described in this method, each constituent mass percentage is:
Figure FSA00000515534100021
Each constituent mass percentage of plastic-steel that this method is received 8201 moulding repair materials is:
Figure FSA00000515534100022
Plastic-steel 8103 wear-resisting each the constituent mass percentage of anti-cavitation erosion coating of receiving of the described application of this method are:
Figure FSA00000515534100023
Figure FSA00000515534100031
Described each the constituent mass percentage of plastic-steel 8102 superslide coatings of receiving of this method is:
Figure FSA00000515534100032
2. the anti-cavitation erosion of a kind of water turbine according to claim 1 energy-conserving reconstruction method is characterized in that: the application zone of anti-cavitation erosion coating and superslide coating comprises runner, blade and draft tube liner, but does not comprise the zone that polyurethane elastomer is repaired.
3. the anti-cavitation erosion of a kind of water turbine according to claim 1 and 2 energy-conserving reconstruction method, it is characterized in that: the first road coating is wear-resisting anti-cavitation erosion coating, and second road is the superslide coating, and total thickness is the 400-600 micron.
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103506801A (en) * 2013-09-24 2014-01-15 四川蜀港水电工程技术有限责任公司 Process for cavitation repair welding of through-flow turbine set runner chamber
CN106497333A (en) * 2016-11-17 2017-03-15 无锡明盛纺织机械有限公司 A kind of turbine blade modified epoxy coating antiseptic loses abrasionproof etching method
CN106519903A (en) * 2016-11-17 2017-03-22 无锡明盛纺织机械有限公司 Anti-corrosion and anti-abrasion method for organic coating of hydraulic turbine blade
CN111229566A (en) * 2020-03-31 2020-06-05 国家电网有限公司 Cavitation defect repairing coating for flow passage component of water turbine and preparation method thereof
CN111457164A (en) * 2020-04-26 2020-07-28 中船黄埔文冲船舶有限公司 Desulfurization system arranges outboard tube
CN111843373A (en) * 2020-07-27 2020-10-30 云南联合电力开发有限公司 Method for improving abrasion damage rapid cold repair strength of flow passage component of water turbine
CN113305500A (en) * 2021-04-23 2021-08-27 杨斌 Repair device for repair points with different sizes of flow passage components of self-adaptive water turbine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52155141A (en) * 1976-06-07 1977-12-23 Cretella Salvatore Regeneration working method of turbine components* etc*
US20020066770A1 (en) * 2000-12-05 2002-06-06 Siemens Westinghouse Power Corporation Cold spray repair process
CN1576574A (en) * 2003-07-28 2005-02-09 上海康达化工有限公司 Anti-abrasion method for hydrotarbine capable of operating under normal atmospheric temperature
CN101418706A (en) * 2008-11-20 2009-04-29 浙江工业大学 Anti-cavitation vane for steam turbine and method of forming same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52155141A (en) * 1976-06-07 1977-12-23 Cretella Salvatore Regeneration working method of turbine components* etc*
US20020066770A1 (en) * 2000-12-05 2002-06-06 Siemens Westinghouse Power Corporation Cold spray repair process
CN1576574A (en) * 2003-07-28 2005-02-09 上海康达化工有限公司 Anti-abrasion method for hydrotarbine capable of operating under normal atmospheric temperature
CN101418706A (en) * 2008-11-20 2009-04-29 浙江工业大学 Anti-cavitation vane for steam turbine and method of forming same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103506801A (en) * 2013-09-24 2014-01-15 四川蜀港水电工程技术有限责任公司 Process for cavitation repair welding of through-flow turbine set runner chamber
CN106497333A (en) * 2016-11-17 2017-03-15 无锡明盛纺织机械有限公司 A kind of turbine blade modified epoxy coating antiseptic loses abrasionproof etching method
CN106519903A (en) * 2016-11-17 2017-03-22 无锡明盛纺织机械有限公司 Anti-corrosion and anti-abrasion method for organic coating of hydraulic turbine blade
CN111229566A (en) * 2020-03-31 2020-06-05 国家电网有限公司 Cavitation defect repairing coating for flow passage component of water turbine and preparation method thereof
CN111457164A (en) * 2020-04-26 2020-07-28 中船黄埔文冲船舶有限公司 Desulfurization system arranges outboard tube
CN111843373A (en) * 2020-07-27 2020-10-30 云南联合电力开发有限公司 Method for improving abrasion damage rapid cold repair strength of flow passage component of water turbine
CN111843373B (en) * 2020-07-27 2022-06-03 云南联合电力开发有限公司 Method for improving abrasion damage rapid cold repair strength of flow passage component of water turbine
CN113305500A (en) * 2021-04-23 2021-08-27 杨斌 Repair device for repair points with different sizes of flow passage components of self-adaptive water turbine

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