CN106930958A - The dynamic balance test method of mass of medium in a kind of simulation pump impeller channel - Google Patents
The dynamic balance test method of mass of medium in a kind of simulation pump impeller channel Download PDFInfo
- Publication number
- CN106930958A CN106930958A CN201511028278.0A CN201511028278A CN106930958A CN 106930958 A CN106930958 A CN 106930958A CN 201511028278 A CN201511028278 A CN 201511028278A CN 106930958 A CN106930958 A CN 106930958A
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- CN
- China
- Prior art keywords
- impeller
- medium
- simulation
- pump
- mass
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to blade pump technical field, and in particular to the dynamic balance method of mass of medium in a kind of simulation pump impeller channel.The dynamic balance test method of mass of medium, comprises the following steps in simulation pump impeller channel of the invention：Step one, medium attachment；Step 2, cooled and solidified；Step 3, excess stock take out；Step 4, uneven amendment；Step 5, simulation medium removal.Present invention solution can still produce Impeller Mass uneven using the corrected impeller of dynamic balancing measurement is carried out in atmosphere when actually used, aggravate the technical problem of pump vibration, the method of the present invention, the approximate actual condition of measurement condition, it is remarkably improved the dynamic balance accuracy of impeller, so as to reduce vibration when pump is operated, it is adaptable to the occasion high to pump vibration requirement under particular service requirement.
Description
Technical field
The invention belongs to blade pump technical field, and in particular to mass of medium in a kind of simulation pump impeller channel
Dynamic balance method.
Background technology
After the completion of the impeller manufacture of vane pump, in order to eliminate machining deviation, it is necessary to it on dynamic balancing machine
Dynamic balancing measurement is carried out, is overlapped with its geometric center with the center of gravity for ensuring blade.At present, blade wheel is dynamic
Balance test is carried out in atmosphere, but in actual condition, flows through the thing of the medium of fluid passage between impeller
Difference is larger compared with air for property, dynamic balancing measurement was carried out in atmosphere and corrected impeller is again in reality
When being used in border, the inconsistent of impeller channel causes the quality full of medium in each runner to differ, and leads
Cause Impeller Mass uneven, and then aggravate the vibration of pump, and supporting member and import and export pipeline by pump
Transmit further out.
The content of the invention
The technical problem to be solved in the invention is：It is corrected using dynamic balancing measurement is carried out in atmosphere
Impeller can still produce Impeller Mass uneven when actually used, aggravate the vibration of pump.
Technical scheme is as described below：
The dynamic balance test method of mass of medium in a kind of simulation pump impeller channel, it is characterised in that：Including
Following steps：
Step one, medium attachment
Under high temperature, the simulation medium material melts of simulation actual fed medium are used in, and impeller is complete
It is immersed in the simulation medium marking liquid of thawing so that the simulation medium marking liquid of thawing is full of impeller
In interlobate runner；
Step 2, cooled and solidified
The thawing simulation medium marking liquid that will submerge has impeller is cooled to normal temperature, melts liquid and is changed into solid,
So that simulation medium material is attached to inside and outside impeller；
Step 3, excess stock take out
Impeller is taken out from the simulation medium material for being changed into solid, front shroud of impeller, bonnet is then removed
In plate surface, and solid simulation medium material unnecessary beyond space between forward and backward cover plate；
Step 4, uneven amendment
The impeller obtained through step 3 is connected on pump shaft, is then installed on dynamic balancing machine and is tested uneven
Weigh；According to the amount of unbalance for obtaining of test, the quality of appropriate section is removed on impeller, repeat to survey
Examination and quality are removed up to impeller center of gravity overlaps with geometric center, terminate uneven amendment；
Step 5, simulation medium removal
The fusing point of simulation medium will be heated to through uneven revised impeller, with leaf after simulation medium thawing
Wheel is separated, and completes the removal of simulation medium in impeller.
Preferably, the simulation medium is paraffin.
Preferably, in the step 4, according to the amount of unbalance for obtaining of test, the position of quality is removed
It is the front shroud or back shroud of impeller.
Beneficial effects of the present invention are：
The present invention proposes a kind of dynamic balance test method of mass of medium in simulation pump impeller channel, tests work
The approximate actual condition of condition, is remarkably improved the dynamic balance accuracy of impeller, so that vibration when pump is operated is reduced,
Suitable for occasion high to pump vibration requirement under particular service requirement.
Brief description of the drawings
Fig. 1 is impeller packing material schematic diagram；
Wherein, 1- impellers, 2- axles, 3- simulation mediums.
Specific embodiment
Mass of medium in a kind of simulation pump impeller channel of the invention is moved with reference to the accompanying drawings and examples
Equilibrium testing method is described in detail.
It is mass of medium in the runner between the two neighboring blade of simulated impeller, chooses conveyed with pump first
The same or like dielectric material of Media density is solid-state under affiliated dielectric material normal temperature and can adhere to leaf
For liquid and can be filled into impeller channel or from impeller stream on wheel component and in impeller channel, under high temperature
Removed in road.
Above-mentioned material is filled in impeller channel under the high temperature conditions, the medium matter in simulated impeller runner
Amount, is subsequently cooled to normal temperature, the material is attached on wheel member and is not fallen off in impeller channel,
Then on removal front shroud of impeller, back shroud, and material unnecessary between forward and backward cover plate.
Impeller is connected with axle, as shown in figure 1, and be fixed on dynamic balancing machine, make under specific rotation speeds
Impeller is rotated, and tests the amount of unbalance of impeller, and quality removal drop is further completed on blade wheel structure part
The amount of unbalance of low impeller, so as to realize simulated impeller runner between mass of medium dynamic balancing, to reach height
The dynamically balanced target of precision.
After the completion of dynamic balance of impeller, the solid material being filled in impeller channel is set to melt and clear by heating
Remove.
As a example by conveying 200 DEG C, the water pump vane dynamic balancing of the high-temperature high pressure water of 15MPa.Under the conditions of being somebody's turn to do
The density of water is 872.2kg/m3, and the density of paraffin wax is 880kg/m under the conditions of being somebody's turn to do3, both similar densities,
The quality of water between paraffin simulated impeller runner can be used.
After by paraffin wax heating and melting, impeller is completely submerged in thawing vasoliniment, makes thawing paraffin liquid
Body is filled into the runner between impeller blade.
The thawing vasoliniment that will submerge afterwards has impeller is cooled to air-setting, paraffin wax is attached to impeller
It is inside and outside and do not fall off.
Then, impeller is taken out from the paraffin for being changed into solid, and removes front shroud of impeller, back shroud table
On face, and solid paraffin unnecessary beyond space between forward and backward cover plate.
Then connect the impeller to test amount of unbalance on pump shaft on dynamic balancing machine, and in the bonnet of impeller
Plate or protecgulum Board position machine away part mass, amount of unbalance are reduced, until impeller center of gravity and geometric center
Overlap, complete dynamic balancing measurement amendment.
Finally, impeller is heated to more than paraffin wax melting point, paraffin wax is melted and is removed from impeller.
Claims (3)
1. in a kind of simulation pump impeller channel mass of medium dynamic balance test method, it is characterised in that：Bag
Include following steps：
Step one, medium attachment
Under high temperature, the simulation medium material melts of simulation actual fed medium are used in, and impeller is complete
It is immersed in the simulation medium marking liquid of melting so that the simulation medium marking liquid of melting is full of impeller
In interlobate runner；
Step 2, cooled and solidified
The melting simulation medium marking liquid that will submerge has impeller is cooled to normal temperature, and melt liquid is changed into solid,
So that simulation medium material is attached to inside and outside impeller；
Step 3, excess stock take out
Impeller is taken out from the simulation medium material for being changed into solid, front shroud of impeller, bonnet is then removed
In plate surface, and solid simulation medium material unnecessary beyond space between forward and backward cover plate；
Step 4, uneven amendment
The impeller obtained through step 3 is connected on pump shaft, is then installed on dynamic balancing machine and is tested uneven
Weigh；According to the amount of unbalance for obtaining of test, the quality of appropriate section is removed on impeller, repeat to survey
Examination and quality are removed up to impeller center of gravity overlaps with geometric center, terminate uneven amendment；
Step 5, simulation medium removal
The fusing point of simulation medium will be heated to through uneven revised impeller, with leaf after simulation medium fusing
Wheel is separated, and completes the removal of simulation medium in impeller.
2. in simulation pump impeller channel as claimed in claim 1 mass of medium dynamic balance test method,
It is characterized in that：The simulation medium is paraffin.
3. in simulation pump impeller channel as claimed in claim 1 mass of medium dynamic balance test method,
It is characterized in that：In the step 4, according to the amount of unbalance for obtaining of test, the position of quality is removed
It is the front shroud or back shroud of impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511028278.0A CN106930958B (en) | 2015-12-31 | 2015-12-31 | The dynamic balance test method of mass of medium in a kind of simulation pump impeller channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511028278.0A CN106930958B (en) | 2015-12-31 | 2015-12-31 | The dynamic balance test method of mass of medium in a kind of simulation pump impeller channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106930958A true CN106930958A (en) | 2017-07-07 |
| CN106930958B CN106930958B (en) | 2018-07-27 |
Family
ID=59442667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511028278.0A Active CN106930958B (en) | 2015-12-31 | 2015-12-31 | The dynamic balance test method of mass of medium in a kind of simulation pump impeller channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106930958B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61281933A (en) * | 1985-06-07 | 1986-12-12 | Mitsubishi Heavy Ind Ltd | Balance testing instrument for high-speed centrifugal compressor |
| US20130199292A1 (en) * | 2009-10-08 | 2013-08-08 | Moscow Mills, Inc. | Balance Test Indexing Tool for Balance-Testing a Rotor |
| CN203337322U (en) * | 2013-05-30 | 2013-12-11 | 沈阳三科水力机械制造有限公司 | Dynamic balancing test tool for water pump impeller |
| CN104165730A (en) * | 2014-08-08 | 2014-11-26 | 江苏海狮泵业制造有限公司 | Dynamic balance testing method for rotor of nuclear-power chemical and volumetric make-up pump |
| CN104198119A (en) * | 2014-08-22 | 2014-12-10 | 中广核核电运营有限公司 | Nuclear power station main pump dynamic balance test method |
-
2015
- 2015-12-31 CN CN201511028278.0A patent/CN106930958B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61281933A (en) * | 1985-06-07 | 1986-12-12 | Mitsubishi Heavy Ind Ltd | Balance testing instrument for high-speed centrifugal compressor |
| US20130199292A1 (en) * | 2009-10-08 | 2013-08-08 | Moscow Mills, Inc. | Balance Test Indexing Tool for Balance-Testing a Rotor |
| CN203337322U (en) * | 2013-05-30 | 2013-12-11 | 沈阳三科水力机械制造有限公司 | Dynamic balancing test tool for water pump impeller |
| CN104165730A (en) * | 2014-08-08 | 2014-11-26 | 江苏海狮泵业制造有限公司 | Dynamic balance testing method for rotor of nuclear-power chemical and volumetric make-up pump |
| CN104198119A (en) * | 2014-08-22 | 2014-12-10 | 中广核核电运营有限公司 | Nuclear power station main pump dynamic balance test method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106930958B (en) | 2018-07-27 |
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