CN107953064A - A kind of restorative procedure of half-opened impeller - Google Patents
A kind of restorative procedure of half-opened impeller Download PDFInfo
- Publication number
- CN107953064A CN107953064A CN201711093015.7A CN201711093015A CN107953064A CN 107953064 A CN107953064 A CN 107953064A CN 201711093015 A CN201711093015 A CN 201711093015A CN 107953064 A CN107953064 A CN 107953064A
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- China
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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 procedure of half-opened impeller, it is desirable to provide one kind overhauls quickly and easily restorative procedure.It comprises the following steps：The first step：Impeller is removed from pump, blade is considered as arc plate shape, measures blade dimensions respectively：Chord length S, arc length L, high H1, the H2 at blade both ends；Second step：The chord length S obtained according to measurement blade, arc length L dimension, maps on AutoCAD, passes through three strokes and dots arcs；Draw by chord length S two-end-points and by certain point on chord length S perpendicular bisectors, and arc length is equal to the circular arc of L；3rd step：Measure arc diameter φ；According to surveyed diameter phi, the seamless steel pipe of a diameter of φ ± 5mm is selected as blade mother metal；4th step：Line of cut is drawn according to chord length S, arc length L, high H1, the H2 at blade both ends in the steel tube surface selected, is new blade after being polished smooth from the part that steel pipe is cut；5th step：After the blade of damage is removed from impeller, new blade is welded on impeller, that is, completes the reparation of impeller.
Description
Technical field
The present invention relates to water pump service technique field, more particularly, to a kind of restorative procedure of half-opened impeller.
Background technology
There are substantial amounts of waste water and waste liquid pond, supporting self priming pump in industrial enterprise to carry out the conveying and processing of waste liquid, due to useless
Liquid impurity content is high, and corrosivity is stronger, produces serious abrasion and corrosion to the impeller of water pump, the water pump service life is drastically shortened,
It is frequent to replace impeller, adds production cost and labor intensity.
The damage of water pump vane is mainly the abrasion and corrosion of blade, and blade is thinned, perforates, deforms and leads to not reach water
Suction, lift and the flow of pump.Under normal circumstances, all it is to carry out repair and maintenance to replace the method for brand-new impeller, but need to be from water
Pump genuine man purchase impeller could meet matching requirements or send old impeller outside tailor-made.Such maintenance mode cause it is of high cost with
And time between overhauls(TBO) length, it is unfavorable for the stabilization produced.
The content of the invention
The purpose of the present invention is intended to overcome the shortcomings of the prior art, there is provided 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, it comprises the following steps：
The first step：Impeller is removed from pump, blade is considered as arc plate shape, measures blade dimensions respectively：Chord length S, arc length L,
High H1, the H2 at blade both ends；
Second step：The chord length S obtained according to measurement blade, arc length L dimension, maps on AutoCAD, passes through three strokes and dots arcs；Draw
Go out by chord length S two-end-points and by certain point on chord length S perpendicular bisectors, and arc length is equal to the circular arc of L；
3rd step：Measure arc diameter φ；According to surveyed diameter phi, the seamless steel pipe of a diameter of φ ± 5mm is selected as blade
Mother metal；
4th step：In the steel tube surface selected according to chord length S, arc length L, high H1, the H2 at blade both ends draw line of cut, from steel pipe
The part cut is new blade after polishing smooth；
5th step：After the blade of damage is removed from impeller, new blade is welded on impeller, that is, completes repairing for impeller
It is multiple.
Preferably, arc length error≤0.1mm in the mapping.
Compared with prior art, the invention has the advantages that：
The present invention the new blade of several piece of quality such as is cut to size using common pipe materials as mother metal, replaces blade all on impeller.
Have the advantages that cost is low, the cycle is short, maintenance is convenient, impeller static balance, dynamic balance running need not be done, there is instant recovery water pump
The effect of function.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are 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 structure 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 the schematic diagram that line of cut is drawn in steel tube surface.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment 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 the premise of not making the creative labor
Embodiment, belongs to the scope of protection of the invention.
A kind of restorative procedure of half-opened impeller, it comprises the following steps：
The first step：Impeller is removed from pump, blade is considered as arc plate shape, measures blade dimensions respectively：Chord length S, arc length L,
High H1, the H2 at blade both ends；
Second step：The chord length S obtained according to measurement blade, arc length L dimension, maps on AutoCAD, passes through three strokes and dots arcs；Draw
Go out by chord length S two-end-points and by certain point on chord length S perpendicular bisectors, and arc length is equal to the circular arc of L, arc length L errors≤
0.1mm；As shown in Figure 2；
3rd step：Measure arc diameter φ；As shown in Figure 3；According to surveyed diameter phi, the seamless steel of a diameter of φ ± 5mm is selected
Pipe is as blade mother metal；
4th step：In the steel tube surface selected according to chord length S, arc length L, high H1, the H2 at blade both ends draw line of cut, from steel pipe
The part cut is new blade after polishing smooth；As shown in Figure 4；
5th step：After the blade of damage is removed from impeller, new blade is welded on impeller, that is, completes repairing for impeller
It is multiple.
It is of the invention to have the advantages that cost is low, the cycle is short, maintenance is convenient, impeller static balance, dynamic balance running be done, its
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 essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (2)
1. a kind of restorative procedure of half-opened impeller, it is characterised in that comprise the following steps：
The first step：Impeller is removed from pump, blade is considered as arc plate shape, measures blade dimensions respectively：Chord length S, arc length L,
High H1, the H2 at blade both ends；
Second step：The chord length S obtained according to measurement blade, arc length L dimension, maps on AutoCAD, passes through three strokes and dots arcs；Draw
Go out by chord length S two-end-points and by certain point on chord length S perpendicular bisectors, and arc length is equal to the circular arc of L；
3rd step：Measure arc diameter φ；According to surveyed diameter phi, the seamless steel pipe of a diameter of φ ± 5mm is selected as blade
Mother metal；
4th step：In the steel tube surface selected according to chord length S, arc length L, high H1, the H2 at blade both ends draw line of cut, from steel pipe
The part cut is new blade after polishing smooth；
5th step：After the blade of damage is removed from impeller, new blade is welded on impeller, that is, completes 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 true CN107953064A (en) | 2018-04-24 |
| CN107953064B CN107953064B (en) | 2019-07-05 |
Family
ID=61963417
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN107953064B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112846248A (en) * | 2021-01-07 | 2021-05-28 | 安徽莱恩电泵有限公司 | Semi-open impeller cutting method of self-priming pump |
| CN114851047A (en) * | 2022-05-10 | 2022-08-05 | 岳阳大陆激光技术有限公司 | Fan impeller repairing method and replica detection tool |
| CN115447800A (en) * | 2022-09-29 | 2022-12-09 | 中国航发动力股份有限公司 | Positioning marking tool and method for controlling chord width of thin-wall exhaust edge turbine blade |
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| CN1354066A (en) * | 2000-11-16 | 2002-06-19 | 通用电气公司 | Method for repairing curved section of nozzle guide device |
| CN102773655A (en) * | 2012-07-20 | 2012-11-14 | 哈尔滨汽轮机厂有限责任公司 | Repairing method of steam turbine rotor fir type wheel groove |
| CN103958121A (en) * | 2011-12-07 | 2014-07-30 | 斯奈克玛 | Method for reshaping a turbomachine blade that has at least one zone that has become deformed using peening |
| CN105057969A (en) * | 2015-05-29 | 2015-11-18 | 西安交通大学 | Blisk repairing method based on micro-ray plasma arc welding and electric spark finishing |
| EP2949418A1 (en) * | 2014-05-30 | 2015-12-02 | Alstom Technology Ltd. | Method for repairing a turbine blade tip |
| 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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2017
- 2017-11-08 CN CN201711093015.7A patent/CN107953064B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354066A (en) * | 2000-11-16 | 2002-06-19 | 通用电气公司 | Method for repairing curved section of nozzle guide device |
| CN103958121A (en) * | 2011-12-07 | 2014-07-30 | 斯奈克玛 | Method for reshaping a turbomachine blade that has at least one zone that has become deformed using peening |
| CN102773655A (en) * | 2012-07-20 | 2012-11-14 | 哈尔滨汽轮机厂有限责任公司 | Repairing method of steam turbine rotor fir type wheel groove |
| EP2949418A1 (en) * | 2014-05-30 | 2015-12-02 | Alstom Technology Ltd. | Method for repairing a turbine blade tip |
| CN105057969A (en) * | 2015-05-29 | 2015-11-18 | 西安交通大学 | Blisk repairing method based on micro-ray plasma arc 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112846248A (en) * | 2021-01-07 | 2021-05-28 | 安徽莱恩电泵有限公司 | Semi-open impeller cutting method of self-priming pump |
| 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 |
| CN114851047A (en) * | 2022-05-10 | 2022-08-05 | 岳阳大陆激光技术有限公司 | Fan impeller repairing method and replica detection tool |
| 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 |
| CN115447800A (en) * | 2022-09-29 | 2022-12-09 | 中国航发动力股份有限公司 | Positioning marking tool and method for controlling chord width of thin-wall exhaust edge turbine blade |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107953064B (en) | 2019-07-05 |
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