CN107953064B - A kind of restorative procedure of half-opened impeller - Google Patents
A kind of restorative procedure of half-opened impeller Download PDFInfo
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- CN107953064B CN107953064B CN201711093015.7A CN201711093015A CN107953064B CN 107953064 B CN107953064 B CN 107953064B CN 201711093015 A CN201711093015 A CN 201711093015A CN 107953064 B CN107953064 B CN 107953064B
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- blade
- impeller
- arc
- length
- chord length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
- B23P6/002—Repairing turbine components, e.g. moving or stationary blades, rotors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of restorative procedures of half-opened impeller, it is desirable to provide a kind of to overhaul quickly and easily restorative procedure.The following steps are included: it is step 1: impeller is removed from pump, and blade is considered as arc plate shape, measures blade dimensions respectively: chord length S, arc length L, high H1, H2 of both ends of the blade；Step 2: arc length L dimension is mapped on AutoCAD according to the chord length S that measurement blade obtains, pass through three strokes and dots arcs；It draws by chord length S two-end-point and by certain point on chord length S perpendicular bisector, and arc length is equal to the circular arc of L；Step 3: measurement arc diameter φ；According to surveyed diameter phi, selecting diameter is the seamless steel pipe of φ ± 5mm as blade base material；Step 4: cutting line is drawn according to chord length S, arc length L, high H1, H2 of both ends of the blade in the steel tube surface selected, the part cut from steel pipe blade as new after polishing smooth；Step 5: new blade is welded on impeller after the blade of damage is removed from impeller, that is, complete the reparation of impeller.
Description
Technical field
The present invention relates to water pump service technique fields, more particularly, to a kind of restorative procedure of half-opened impeller.
Background technique
There are a large amount of waste water and waste liquid pond in industrial enterprise, mating self priming pump carries out the conveying and processing of waste liquid, due to useless
Liquid impurity content is high, and corrosivity is stronger, generates serious abrasion and corrosion to the impeller of water pump, shortens the water pump service life sharply,
It is frequent to replace impeller, increases production cost and labor intensity.
The damage of water pump vane is mainly the abrasion and corrosion of blade, and blade is thinned, perforates, deformation leads to not reach water
Suction, lift and the flow of pump.Under normal circumstances, be all to replace the method for completely new impeller and carry out repair and maintenance, but need to be from water
Pump genuine man purchase impeller is just able to satisfy matching requirements or sends old impeller outside tailor-made.Such maintenance mode cause it is at high cost with
And the time between overhauls(TBO) is long, is unfavorable for the stabilization of production.
Summary of the invention
The purpose of the present invention is intended to overcome the shortcomings of the prior art, provides that a kind of time between overhauls(TBO) is short, the cost of overhaul
Low, the convenient half-opened impeller of maintenance restorative procedure.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions:
A kind of restorative procedure of half-opened impeller comprising following steps:
Step 1: impeller is removed from pump, blade is considered as arc plate shape, measures blade dimensions respectively: chord length S, arc
Long L, high H1, H2 of both ends of the blade；
Step 2: arc length L dimension is mapped on AutoCAD according to the chord length S that measurement blade obtains, pass through three strokes and dots
Arc；It draws by chord length S two-end-point and by certain point on chord length S perpendicular bisector, and arc length is equal to the circular arc of L；
Step 3: measurement arc diameter φ；According to surveyed diameter phi, select diameter for the seamless steel pipe conduct of φ ± 5mm
Blade base material；
Step 4: cutting line is drawn according to chord length S, arc length L, high H1, H2 of both ends of the blade in the steel tube surface selected, from
The part that steel pipe is cut is new blade after polishing smooth；
Step 5: new blade is welded on impeller after the blade of damage is removed from impeller, that is, complete impeller
It repairs.
Preferably, arc length error≤0.1mm in the mapping.
Compared with prior art, the present invention has the advantage that
The present invention the new blade of several piece of quality such as is cut to size using common pipe materials as base material, replaces all on impeller
Blade.Have the advantages that at low cost, the period is short, maintenance is convenient, without doing impeller static balance, dynamic balance running, have immediately extensive
The effect of rehydration pumping function.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of impeller.
Fig. 2 is the schematic diagram for making leaf chord length S and arc length L on AutoCAD.
Fig. 3 is the schematic diagram that blade arc diameter phi is measured on AutoCAD.
Fig. 4 is to draw the schematic diagram of cutting line in steel tube surface.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor
Embodiment shall fall within the protection scope of the present invention.
A kind of restorative procedure of half-opened impeller comprising following steps:
Step 1: impeller is removed from pump, blade is considered as arc plate shape, measures blade dimensions respectively: chord length S, arc
Long L, high H1, H2 of both ends of the blade；
Step 2: arc length L dimension is mapped on AutoCAD according to the chord length S that measurement blade obtains, pass through three strokes and dots
Arc；It draws through chord length S two-end-point and passes through certain point on chord length S perpendicular bisector, and circular arc of the arc length equal to L, arc length L error≤
0.1mm；As shown in Figure 2；
Step 3: measurement arc diameter φ；As shown in Figure 3；According to surveyed diameter phi, select diameter for the nothing of φ ± 5mm
Steel pipe is stitched as blade base material；
Step 4: cutting line is drawn according to chord length S, arc length L, high H1, H2 of both ends of the blade in the steel tube surface selected, from
The part that steel pipe is cut is new blade after polishing smooth；As shown in Figure 4；
Step 5: new blade is welded on impeller after the blade of damage is removed from impeller, that is, complete impeller
It repairs.
The present invention have the advantages that at low cost, the period is short, maintenance is convenient, without doing impeller static balance, dynamic balance running,
Impaired impeller can quickly be repaired, it is ensured that the stability of production.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (2)
1. a kind of restorative procedure of half-opened impeller, it is characterised in that the following steps are included:
Step 1: impeller is removed from pump, blade is considered as arc plate shape, measures blade dimensions respectively: chord length S, arc length L,
High H1, H2 of both ends of the blade；
Step 2: arc length L dimension is mapped on AutoCAD according to the chord length S that measurement blade obtains, pass through three strokes and dots arcs；It draws
Out by chord length S two-end-point and by certain point on chord length S perpendicular bisector, and arc length is equal to the circular arc of L；
Step 3: measurement arc diameter φ；According to surveyed diameter phi, selecting diameter is the seamless steel pipe of φ ± 5mm as blade
Base material；
Step 4: arc length L, high H1, H2 of both ends of the blade draw cutting line, from steel pipe in the steel tube surface selected according to chord length S
The part cut is new blade after polishing smooth；
Step 5: new blade is welded on impeller after the blade of damage is removed from impeller, that is, complete repairing for impeller
It is multiple.
2. the restorative procedure of half-opened impeller according to claim 1, it is characterised in that: arc length error in the mapping≤
0.1mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711093015.7A CN107953064B (en) | 2017-11-08 | 2017-11-08 | A kind of restorative procedure of half-opened impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711093015.7A CN107953064B (en) | 2017-11-08 | 2017-11-08 | A kind of restorative procedure of half-opened impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107953064A CN107953064A (en) | 2018-04-24 |
| CN107953064B true CN107953064B (en) | 2019-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711093015.7A Active CN107953064B (en) | 2017-11-08 | 2017-11-08 | A kind of restorative procedure of half-opened impeller |
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| CN (1) | CN107953064B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112846248B (en) * | 2021-01-07 | 2021-11-09 | 安徽莱恩电泵有限公司 | Semi-open impeller cutting method of self-priming pump |
| CN114851047B (en) * | 2022-05-10 | 2024-03-26 | 岳阳大陆激光技术有限公司 | Fan impeller repairing method and duplicating type detection tool |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6416278B1 (en) * | 2000-11-16 | 2002-07-09 | General Electric Company | Turbine nozzle segment and method of repairing same |
| FR2983757B1 (en) * | 2011-12-07 | 2014-09-12 | Snecma | PROCESS FOR REFORMING A TURBOMACHINE BLADE COMPRISING AT LEAST ONE ZONE DEFORMEE BY GRASPING |
| CN102773655B (en) * | 2012-07-20 | 2014-09-03 | 哈尔滨汽轮机厂有限责任公司 | Repairing method of steam turbine rotor fir type wheel groove |
| EP2949418B1 (en) * | 2014-05-30 | 2017-02-01 | General Electric Technology GmbH | Method for repairing a turbine blade tip |
| CN105057969B (en) * | 2015-05-29 | 2017-12-08 | 西安交通大学 | Repairing method of solid impeller disc based on MICROBEAM PLASMA WELDING and electric spark finishing |
| CN105414877A (en) * | 2015-11-04 | 2016-03-23 | 鲁一军 | Die core repairing process |
| CN106925943A (en) * | 2017-04-06 | 2017-07-07 | 中交天津航道局有限公司 | A kind of restorative procedure of rich chromium cast iron material dredging pump impeller |
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| CN107953064A (en) | 2018-04-24 |
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