CN106533089A - Insulating drying apparatus and method for generator - Google Patents
Insulating drying apparatus and method for generator Download PDFInfo
- Publication number
- CN106533089A CN106533089A CN201611159122.0A CN201611159122A CN106533089A CN 106533089 A CN106533089 A CN 106533089A CN 201611159122 A CN201611159122 A CN 201611159122A CN 106533089 A CN106533089 A CN 106533089A
- Authority
- CN
- China
- Prior art keywords
- cold water
- stator
- generator
- storage cistern
- water storage
- 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
- 238000001035 drying Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 238000009413 insulation Methods 0.000 claims abstract description 21
- 239000000498 cooling water Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 92
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
Abstract
The invention relates to auxiliary equipment, and discloses an insulating drying apparatus and method for a generator. The insulating drying apparatus comprises a main heater (1), a stator cooling water tank (2) and a pipeline (3), wherein the stator cooling water tank (2) is used for storing stator cooling water; the main heater (1) is positioned in the stator cooling water tank (2) and used for heating the stator cooling water in the stator cooling water tank (2); the pipeline (3) is connected with the stator cooling water tank (2) and a stator bar; the stator bar is positioned in a generator stator cavity; and the heated stator cooling water passes through the stator bar to perform heat exchange with the generator stator cavity so as to maintain the temperature in the generator stator cavity. By adoption of the insulating drying apparatus and method for the generator, the required curing temperature for stator bar insulation is obtained, and the temperature can be maintained stably and uniformly, so that technological processing requirement can be fully satisfied.
Description
Technical field
The present invention relates to equipment is supplementally taken, in particular it relates to a kind of generator insulating drying device and method.
Background technology
After electromotor changes bar or electromotor bar insulation Local treatment, need to keep certain hour at a certain temperature
Afterwards, generator insulating can just be fully cured and ensure the mechanical strength for insulating, so as to just can guarantee that the long cycle life of insulation.
In prior art, electromotor changes bar or minor insulation processes drying meanss and combines blower fan using large-scale heater
Heated, because some Generator Stator hall internal volumes are larger, such as million grades of electromotors, heater add with reference to blower fan method
Hot temperature is limited, it is difficult to be heated to required ideal temperature, and can not adjust, and heats not uniform etc. enough.
The content of the invention
It is an object of the invention to provide a kind of generator insulating drying device and method, the generator insulating drying device and
Method causes stator bar insulation to obtain required solidification temperature, and stable and uniform ground keeps the temperature, fully meets at technique
Reason is required.
To achieve these goals, the present invention provides a kind of generator insulating drying device, and the generator insulating is dried dress
Put including：Primary heater, determine cold water storage cistern and pipeline, wherein, it is described to determine cold water storage cistern and determine cold water for storing；The primary heater
Positioned at determining in cold water storage cistern, determine to determine cold water in cold water storage cistern for heating；And the pipeline be used for connect it is described determine cold water storage cistern and
Stator bar, the stator bar are located in generator unit stator hall, and described after heating determine cold water and passes through the stator bar, with
The generator unit stator hall carries out heat exchange, to maintain the temperature in the generator unit stator hall.
Preferably, the generator insulating drying device also includes：Stator cooling water pump, is connected to and described determines cold water storage cistern and described fixed
On pipeline between sub-line rod, for determining described cold water and determining cold water storage cistern and be delivered to the stator line from described by the pipeline
Rod.
Preferably, the generator insulating drying device also includes：Auxiliary heater, is arranged on the stator cooling water pump and described
On pipeline between stator bar, cool water heating is determined for flowing through pipe.
Preferably, the primary heater is steam heater.
Preferably, described to determine cold water after the stator bar, described in Jing, pipeline return is described determines cold water storage cistern, to complete
Determine the circulation of cold water.
Preferably, the auxiliary heater is electric heater.
The present invention also provides a kind of insulation torrefaction method to be included：Heating is determined to determine cold water in cold water storage cistern；And make heating
Afterwards described determines cold water by the stator bar in generator unit stator hall, completes heat exchange with the generator unit stator hall,
To maintain the temperature in the generator unit stator hall.
Preferably, the insulation torrefaction method also includes：Cold water is determined into before the stator bar, to flowing through pipe described
Cool water heating is determined in road.
Preferably, the insulation torrefaction method also includes：Described to determine cold water after the stator bar, Jing pipelines return institute
State and determine cold water storage cistern, to complete to determine the circulation of cold water.
By above-mentioned technical proposal, the generator insulating drying device provided using the present invention and method, the electromotor is exhausted
Edge drying device includes primary heater, determines cold water storage cistern and pipeline, wherein, it is described to determine cold water storage cistern and determine cold water for storing；It is described
Primary heater is located to be determined in cold water storage cistern, determines to determine cold water in cold water storage cistern for heating；The pipeline is used to connect described to determine cold water
Case and stator bar, the stator bar are located in generator unit stator hall, and described after heating determine cold water and passes through the stator line
Rod, carries out heat exchange with the generator unit stator hall, to maintain the temperature in the generator unit stator hall.The electromotor of the present invention
Insulation torrefaction apparatus and method cause stator bar insulation to obtain required solidification temperature, and stable and uniform ground keeps the temperature,
Fully meet PROCESS FOR TREATMENT requirement.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of description, with following tool
Body embodiment is used for explaining the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structural representation of the generator insulating drying device that an embodiment of the present invention is provided；
Fig. 2 is the structural representation of the generator insulating drying device that another embodiment of the invention is provided；
Fig. 3 is the flow chart of the generator insulating drying meanss that an embodiment of the present invention is provided.
Description of reference numerals
1 primary heater 2 determines cold water storage cistern
3 pipeline, 4 stator cooling water pump
5 auxiliary heaters.
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explains the present invention, is not limited to the present invention.
Fig. 1 is the structural representation of the generator insulating drying device that an embodiment of the present invention is provided.As shown in figure 1,
The present invention provides a kind of generator insulating drying device, and the generator insulating drying device includes：Primary heater 1, determine cold water storage cistern 2
And pipeline 3, wherein, it is described to determine cold water storage cistern 2 and determine cold water for storing；The primary heater 1 is located to be determined, in cold water storage cistern 2, to be used for
Heating is determined to determine cold water in cold water storage cistern 2；And the pipeline 3 is used to connect described to determine cold water storage cistern 2 and stator bar, the stator
Bar is located in generator unit stator hall, and described after heating determine cold water and passes through the stator bar, with the generator unit stator hall
Heat exchange is carried out, to maintain the temperature in the generator unit stator hall.The primary heater 1 can be steam heater.
After electromotor changes stator bar or generator stator bar insulation Local treatment, when insulation is dried, it is desirable to absolutely
Edge ambient temperature is at least 80 DEG C or so, splendid to control temperature range for 82～88 DEG C, and is kept for 24 hours, soak
Between, temperature must not have beyond ± 5 DEG C of large changes, so just can guarantee that the handling process level of insulation.Due to electromotor unit
Capacity becomes larger, and generator unit stator hall internal volume is bigger than normal, directly needs larger capacity equipment and power supply using electrical heating method
System, produced temperature and cannot reach the problems such as 85 DEG C or so and uneven insulation, make insulating treatment process be deteriorated, to equipment length week
Phase operation brings hidden danger.
Stator bar is directly heated using chilled water system is determined, kept substantially not by the cold water water temperature of determining of stator bar
Become, Jing carries out heat exchange with extraneous (i.e. generator unit stator hall), temperature in generator unit stator hall can be brought up to requirement directly
85 DEG C, and ensure the temperature all-the-time stable in generator unit stator hall, large change will not be produced.
Fig. 2 is the structural representation of the generator insulating drying device that another embodiment of the invention is provided.Such as Fig. 2 institutes
Show, it is preferable that the generator insulating drying device also includes：Stator cooling water pump 4, is connected to and described determines cold water storage cistern 2 and the stator
On pipeline 3 between bar, for determining described cold water and determining cold water storage cistern and be delivered to the stator line from described by the pipeline 3
Rod.
When determining cool water heating to 92 DEG C or so, due to 4 high temperature resistant reason of water vapor and stator cooling water pump, it is impossible to which coolant-temperature gage is carried
Get Geng Gao, along with pipeline 3 loses, in generator unit stator, general about 88 DEG C or so of temperature is peak.It is preferred that
The generator insulating drying device also includes：Auxiliary heater 5, is arranged between the stator cooling water pump 4 and the stator bar
Pipeline 3 on, described for flowing through pipe 3 determines cool water heating.
Improved into stator bar by auxiliary heater 5 and determine cold water temperature, make the temperature can bring up to 94 DEG C or so, increased
Plus this flexible control device, other special insulation processing requirements can be met, in generator unit stator hall temperature can improve 9 DEG C it is left
The right side, greatly ensure that the reliability of insulating process.In addition, when primary heater 1 is damaged, auxiliary heater 5 can also be carried out
Heating, it is ensured that system is normally run.
Auxiliary heater 5 can be electric heater, or other heaters, or even be to provide other heating means
Heater, here of the present invention are not limited.
Determine cold water after the stator bar as shown in Fig. 2 described, pipeline 3 described in Jing return it is described determine cold water storage cistern 2,
To complete to determine the circulation of cold water.Return determine cold water storage cistern 2 determine cold water due to generator unit stator hall inside complete heat exchange and
Loss in transmitting procedure, temperature are decreased, reheat through primary heater 1 in cold water storage cistern 2 is determined, so as to again by
Stator cooling water pump 4 carries out conveying utilization.
Fig. 3 is the flow chart of the generator insulating drying meanss that an embodiment of the present invention is provided.As shown in figure 3, this
It is bright that a kind of insulation torrefaction method is also provided, including：Heating is determined to determine cold water in cold water storage cistern；And make described fixed cold after heating
Water carries out heat exchange with the generator unit stator hall by the stator bar in generator unit stator hall, is sent out with remaining described
Temperature in motor stator hall.
Preferably, cold water is determined into before the stator bar described, what pipeline was flow through in heating determines cold water.It is described fixed cold
After the stator bar, the return of Jing pipelines is described to determine cold water storage cistern to water, to complete to determine the circulation of cold water.
By above-mentioned technical proposal, the generator insulating drying device provided using the present invention and method, the electromotor is exhausted
Edge drying device includes primary heater, determines cold water storage cistern and pipeline, wherein, it is described to determine cold water storage cistern and determine cold water for storing；It is described
Primary heater is located to be determined in cold water storage cistern, determines to determine cold water in cold water storage cistern for heating；The pipeline is used to connect described to determine cold water
Case and stator bar, the stator bar are located in generator unit stator hall, and described after heating determine cold water and passes through the stator line
Rod, carries out heat exchange with the generator unit stator hall, to maintain the temperature in the generator unit stator hall.The electromotor of the present invention
Insulation torrefaction apparatus and method cause stator bar insulation to obtain required solidification temperature, and stable and uniform ground keeps the temperature,
Fully meet PROCESS FOR TREATMENT requirement.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, various letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The compound mode of energy is no longer separately illustrated.
Additionally, combination in any between a variety of embodiments of the present invention, can also be carried out, as long as which is without prejudice to this
The thought of invention, which should equally be considered as content disclosed in this invention.
Claims (9)
1. a kind of generator insulating drying device, it is characterised in that the generator insulating drying device includes：
Primary heater (1), determine cold water storage cistern (2) and pipeline (3), wherein,
It is described to determine cold water storage cistern (2) and determine cold water for storing；
The primary heater (1) determines to determine cold water in cold water storage cistern (2) for heating positioned at determining in cold water storage cistern (2)；And
The pipeline (3) for connect it is described determine cold water storage cistern (2) and stator bar, the stator bar is located at generator unit stator hall
Interior, described after heating determines cold water by the stator bar, carries out heat exchange with the generator unit stator hall, to remain described
Temperature in generator unit stator hall.
2. generator insulating drying device according to claim 1, it is characterised in that the generator insulating drying device is also
Including：
Stator cooling water pump (4), is connected on the pipeline (3) determined between cold water storage cistern (2) and the stator bar, for by institute
State pipeline (3) to determine described cold water and determine cold water storage cistern and be delivered to the stator bar from described.
3. generator insulating drying device according to claim 2, it is characterised in that the generator insulating drying device is also
Including：
Auxiliary heater (5), is arranged on the pipeline (3) between the stator cooling water pump (4) and the stator bar, for convection current
Piping (3) determines cool water heating.
4. generator insulating drying device according to claim 1, it is characterised in that the primary heater (1) is steam
Heater.
5. generator insulating drying device according to claim 1, it is characterised in that described to determine cold water by the stator
After bar, pipeline described in Jing (3) return is described to determine cold water storage cistern (2), to complete to determine the circulation of cold water.
6. generator insulating drying device according to claim 3, it is characterised in that the auxiliary heater is electrical heating
Device.
7. a kind of generator insulating drying meanss, it is characterised in that the insulation torrefaction method includes：
Heating is determined to determine cold water in cold water storage cistern；And
Make after heating it is described determine cold water by the stator bar in generator unit stator hall, enter with the generator unit stator hall
Row heat exchange, to maintain the temperature in the generator unit stator hall.
8. generator insulating drying meanss according to claim 7, it is characterised in that the insulation torrefaction method also includes：
Cold water is determined into before the stator bar described, flowing through pipe determines cool water heating.
9. generator insulating drying meanss according to claim 7, it is characterised in that the insulation torrefaction method also includes：
Described to determine cold water after the stator bar, the return of Jing pipelines is described to determine cold water storage cistern, to complete to determine the circulation of cold water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611159122.0A CN106533089A (en) | 2016-12-15 | 2016-12-15 | Insulating drying apparatus and method for generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611159122.0A CN106533089A (en) | 2016-12-15 | 2016-12-15 | Insulating drying apparatus and method for generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106533089A true CN106533089A (en) | 2017-03-22 |
Family
ID=58339552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611159122.0A Pending CN106533089A (en) | 2016-12-15 | 2016-12-15 | Insulating drying apparatus and method for generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106533089A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769496A (en) * | 2017-12-04 | 2018-03-06 | 马鞍山马钢电气修造有限公司 | A kind of large-size machine winding field drying method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5692314A (en) * | 1995-07-12 | 1997-12-02 | Asea Brown Boveri Ag | Process for drying the insulation of stator winding rods of electrical machines with direct liquid cooling |
| CN202978580U (en) * | 2012-12-19 | 2013-06-05 | 武汉钢铁(集团)公司 | Air cooling device with heating and drying functions |
-
2016
- 2016-12-15 CN CN201611159122.0A patent/CN106533089A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5692314A (en) * | 1995-07-12 | 1997-12-02 | Asea Brown Boveri Ag | Process for drying the insulation of stator winding rods of electrical machines with direct liquid cooling |
| CN202978580U (en) * | 2012-12-19 | 2013-06-05 | 武汉钢铁(集团)公司 | Air cooling device with heating and drying functions |
Non-Patent Citations (1)
| Title |
|---|
| 王学 等: "国产600MW发电机电晕现场处理方法" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769496A (en) * | 2017-12-04 | 2018-03-06 | 马鞍山马钢电气修造有限公司 | A kind of large-size machine winding field drying method |
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170322 |
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| RJ01 | Rejection of invention patent application after publication |