CN106329829B - A kind of cooling air duct device suitable for air-cooled steam turbine generator - Google Patents
A kind of cooling air duct device suitable for air-cooled steam turbine generator Download PDFInfo
- Publication number
- CN106329829B CN106329829B CN201610801805.5A CN201610801805A CN106329829B CN 106329829 B CN106329829 B CN 106329829B CN 201610801805 A CN201610801805 A CN 201610801805A CN 106329829 B CN106329829 B CN 106329829B
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- CN
- China
- Prior art keywords
- shell
- cooling air
- steam turbine
- turbine generator
- air duct
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
- H02K9/18—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
Abstract
The present invention relates to a kind of cooling air duct devices suitable for air-cooled steam turbine generator.It includes shell and siding, and cooling air duct is mainly made of shell and siding, and the first sealing mechanism is equipped at the fit-up gap of shell and siding, and shell both ends are equipped with the second sealing mechanism with shaft junction.Structure of the invention reasonable design, the sealing inside motor is tight, avoids the occurrence of hot and cold wind area and mixes wind phenomenon, and can effectively stop that impurity enters inside motor outside motor both ends.
Description
Technical field
The present invention relates to a kind of cooling air duct devices suitable for air-cooled steam turbine generator.
Background technology
Air-cooled steam turbine generator takes away the heat inside motor and reaches cooling using sealing and circulating air as cooling medium
Purpose, cooling air duct system directly affects the cooling effect of motor, especially compact-sized ready-package steam turbine generator, choosing
It is very necessary to select a cooling air duct system reasonable for structure.The cooling air duct of existing quick mounting type air-cooled steam turbine generator is main
It being made of the siding inside shell and motor, shell and siding are had a common boundary place and are blocked using steel plate, operating difficulties and poorly sealed close,
Easily there is hot and cold wind area and mixes wind phenomenon；Since the air pressure of motor both ends wind path low-pressure area is far below air pressure outside motor, pole when operation
The easily impurity such as sucking greasy dirt, dust, cause to damage to motor.
Invention content
The present invention provides a kind of cooling air duct devices suitable for air-cooled steam turbine generator, it is reasonable in design, electricity
Sealing inside machine is tight, avoids the occurrence of hot and cold wind area and mixes wind phenomenon, and can effectively stop that impurity enters outside motor both ends
Inside motor, solve problems of the prior art.
Used technical solution is the present invention to solve above-mentioned technical problem：It includes shell and siding, cooling air duct
It is mainly made of shell and siding, the first sealing mechanism is equipped at the fit-up gap of shell and siding, the first sealing mechanism includes
Weatherstrip body, weatherstrip body are made of interconnecting piece and adjustment portion, and interconnecting piece has a U-lag, siding stretch into U-lag and with
It is clamped, and adjustment portion is a lath, and one end of lath is connected with U-lag bottom side, has between lath and U-lag bottom and adjusts
Internode gap, lath are abutted with shell；Shell both ends are equipped with the second sealing mechanism with shaft junction, and the second sealing mechanism includes
The chuck being set on the madial wall of shell both ends, one end of guide duct are stretched into chuck, the other end and cooling wind of guide duct
The higher-pressure region on road is connected, and separate cavities are equipped on the inside of chuck, and separate cavities are right against the outs open setting of shaft, chuck and shaft
Between, between separate cavities and shaft be equipped with sealing gland gap.
The lath of first sealing mechanism is horizontally disposed.
The lath of first sealing mechanism is to be obliquely installed.
The guide duct of second sealing mechanism is hose.
It is equipped with split-flow baffles in the wind outlet of air-cooled steam turbine generator cooler.
The split-flow baffles are Z-shaped.
The shell is made of removable upper shell and lower housing.
The present invention using the above scheme, has the following advantages：
1, the first sealing mechanism can make the sealing at the fit-up gap of shell and siding tight, avoid the occurrence of hot and cold wind
Mix wind phenomenon in area.Specifically, siding is stretched into U-lag and is clamped with it, lath is abutted with shell, lath and U-lag bottom
Between adjusting gap decrement it is big, good airproof performance can be adapted to the clearance fit of different dimensional tolerances in a certain range,
Even if when due to generating vibration in operational process, still can guarantee that sealing is tight afterwards, and it can be suitable for being dismounted for multiple times
Situation.Lath is horizontally disposed or is obliquely installed.
2, the second sealing mechanism can effectively stop that impurity enters inside motor outside motor both ends.Specifically, by leading
The air of cooling air duct higher-pressure region is introduced the sealing gland gap between chuck and shaft by air hose, forms high pressure sealing gland area, to anti-
The impurity such as greasy dirt, dust are only sucked when motor operation；Separate cavities are equipped on the inside of chuck, as far as possible by the high pressure sealing gland area of formation
It is separated with the low-pressure air on the inside of shell both ends at shaft from reduction draught head prevents from sucking greasy dirt, ash when motor operation
The impurity such as dirt.
3, split-flow baffles are equipped in the wind outlet of air-cooled steam turbine generator cooler, split-flow baffles are Z-shaped, to cool down
The wind outlet area of device（The wind outlet area is cold wind area）It is divided into the left and right areas Liang Gefeng, it is ensured that cooling air is equal in two wind paths in left and right
Even distribution avoids local location temperature due to cooling is bad excessively high, influences the output of motor.
4, shell is made of removable upper shell and lower housing, can be easy to open, convenient for excluding in cooling air duct in time
Blocking, damage failure.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 be in Fig. 1 A-A to schematic cross-sectional view.
Fig. 3 be in Fig. 1 B to structural schematic diagram.
Fig. 4 is the structural schematic diagram of the first sealing mechanism.
Fig. 5 is the structural schematic diagram of the second sealing mechanism.
In figure, 1, upper shell, 2, lower housing, 3, siding, the 4, first sealing mechanism, the 5, second sealing mechanism, 6, shunting every
Plate, 7, shaft, 401, U-lag, 402, lath, 403, adjust gap, 501, chuck, 502, guide duct, 503, separate cavities, 504,
Sealing gland gap.
Specific implementation mode
In order to clarify the technical characteristics of the invention, below by specific implementation mode, and its attached drawing is combined, to this hair
It is bright to be described in detail.
As shown in fig. 1~fig. 5, the present invention includes shell and siding 3, and cooling air duct is mainly made of shell and siding 3.Shell
Body is made of removable upper shell 1 and lower housing 2.It is equipped with the first sealing mechanism 4 at shell and the fit-up gap of siding 3.The
One sealing mechanism 4 includes weatherstrip body, and weatherstrip body is made of interconnecting piece and adjustment portion, and interconnecting piece has U-lag 401,
Siding 5 is stretched into U-lag 401 and is clamped with it, and adjustment portion is a lath 402, one end and 401 bottom one of U-lag of lath 402
Side is connected, and has between 401 bottom of lath 402 and U-lag and adjusts gap 403, lath 402 is abutted with shell.First sealer
The lath 402 of structure 4 is horizontally disposed or is obliquely installed.Shell both ends are equipped with the second sealing mechanism 5 with 7 junction of shaft.The
Two sealing mechanisms 5 include the chuck 501 being set on the madial wall of shell both ends, and chuck 501 is stretched into one end of guide duct 502
Interior, the other end of guide duct 502 is connected with the higher-pressure region of cooling air duct, and separate cavities 503, separate cavities are equipped in 501 inside of chuck
503 are right against the outs open setting of shaft 7, and gas is equipped between chuck 501 and shaft 7, between separate cavities 503 and shaft 7
Seal gap 504.The guide duct 502 of second sealing mechanism 5 is hose.It is equipped with and divides in the wind outlet of air-cooled steam turbine generator cooler
Flow partition board 6.Split-flow baffles 6 are Z-shaped.
The present invention using the above scheme, has the following advantages：
1, the first sealing mechanism 4 can make shell and the sealing at the fit-up gap of siding 3 tight, avoid the occurrence of hot and cold
Mix wind phenomenon in wind area.Specifically, siding 3 is stretched into U-lag 401 and is clamped with it, lath 402 is abutted with shell, lath 402
403 decrement of adjusting gap between 401 bottom of U-lag is big, and good airproof performance can be adapted to different rulers in a certain range
The clearance fit of very little tolerance, even if when due to generating vibration in operational process, still can guarantee that sealing is tight afterwards, and it can
The case where suitable for being dismounted for multiple times.Lath 402 is horizontally disposed or is obliquely installed.
2, the second sealing mechanism 5 can effectively stop that impurity enters inside motor outside motor both ends.Specifically, by leading
The air of cooling air duct higher-pressure region is introduced the sealing gland gap 504 between chuck 501 and shaft 7 by air hose 502, forms high pressure sealing gland
Area sucks the impurity such as greasy dirt, dust when to prevent motor operation；Separate cavities 503 are equipped in 501 inside of chuck, as far as possible will
The high pressure sealing gland area of formation is separated with the low-pressure air on the inside of shell both ends at shaft 7 from reduction draught head prevents motor
The impurity such as greasy dirt, dust are sucked when operation.
3, split-flow baffles 6 are equipped in the wind outlet of air-cooled steam turbine generator cooler, split-flow baffles 6 are Z-shaped, thus will be cold
But the wind outlet area of device（The wind outlet area is cold wind area）It is divided into the left and right areas Liang Gefeng, it is ensured that cooling air is in two wind paths in left and right
It evenly distributes, avoids local location temperature due to cooling is bad excessively high, influence the output of motor.
4, shell is made of removable upper shell 1 and lower housing 2, can be easy to open, convenient for excluding cooling air duct in time
Interior blocking, damage failure.
Above-mentioned specific implementation mode cannot function as limiting the scope of the invention, for the technology people of the art
For member, any alternate modification or transformation made to embodiment of the present invention are all fallen in protection scope of the present invention.
Place is not described in detail by the present invention, is the known technology of those skilled in the art of the present technique.
Claims (7)
1. a kind of cooling air duct device suitable for air-cooled steam turbine generator, including shell and siding, cooling air duct include shell
And siding, it is characterised in that：The first sealing mechanism is equipped at the fit-up gap of shell and siding, the first sealing mechanism includes sealing
Ontology, weatherstrip body are made of interconnecting piece and adjustment portion, and there is interconnecting piece U-lag, siding to stretch into U-lag and block with it
It connects, adjustment portion is a lath, and one end of lath is connected with U-lag bottom side, is had between lath and U-lag bottom between adjusting
Gap, lath are abutted with shell；Shell both ends are equipped with the second sealing mechanism with shaft junction, and the second sealing mechanism includes setting
Chuck on the madial wall of shell both ends, one end of guide duct are stretched into chuck, the other end of guide duct and cooling air duct
Higher-pressure region is connected, and is equipped with separate cavities on the inside of chuck, and separate cavities are right against the outs open setting of shaft, chuck and shaft it
Between, between separate cavities and shaft be equipped with sealing gland gap.
2. a kind of cooling air duct device suitable for air-cooled steam turbine generator according to claim 1, it is characterised in that：Institute
The lath for stating the first sealing mechanism is horizontally disposed.
3. a kind of cooling air duct device suitable for air-cooled steam turbine generator according to claim 1, it is characterised in that：Institute
The lath for stating the first sealing mechanism is to be obliquely installed.
4. a kind of cooling air duct device suitable for air-cooled steam turbine generator according to claim 1, it is characterised in that：Institute
The guide duct for stating the second sealing mechanism is hose.
5. a kind of cooling air duct device suitable for air-cooled steam turbine generator according to claim 1, it is characterised in that：
The wind outlet of air-cooled steam turbine generator cooler is equipped with split-flow baffles.
6. a kind of cooling air duct device suitable for air-cooled steam turbine generator according to claim 5, it is characterised in that：Institute
It is Z-shaped to state split-flow baffles.
7. a kind of cooling air duct device suitable for air-cooled steam turbine generator according to claim 1, it is characterised in that：Institute
Shell is stated to be made of removable upper shell and lower housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610801805.5A CN106329829B (en) | 2016-09-05 | 2016-09-05 | A kind of cooling air duct device suitable for air-cooled steam turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610801805.5A CN106329829B (en) | 2016-09-05 | 2016-09-05 | A kind of cooling air duct device suitable for air-cooled steam turbine generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106329829A CN106329829A (en) | 2017-01-11 |
| CN106329829B true CN106329829B (en) | 2018-09-11 |
Family
ID=57788106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610801805.5A Active CN106329829B (en) | 2016-09-05 | 2016-09-05 | A kind of cooling air duct device suitable for air-cooled steam turbine generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN106329829B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163886A (en) * | 2011-03-29 | 2011-08-24 | 山西太钢不锈钢股份有限公司 | Method for preventing water from entering motor |
| CN102251590A (en) * | 2011-04-26 | 2011-11-23 | 镇江康飞机器制造有限公司 | Sealing device between vertical wallboards of shelter |
| CN202879389U (en) * | 2012-10-29 | 2013-04-17 | 北汽福田汽车股份有限公司 | Sealing strip |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1118368A (en) * | 1997-06-23 | 1999-01-22 | Calsonic Corp | Cooling air flow channel structure |
-
2016
- 2016-09-05 CN CN201610801805.5A patent/CN106329829B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163886A (en) * | 2011-03-29 | 2011-08-24 | 山西太钢不锈钢股份有限公司 | Method for preventing water from entering motor |
| CN102251590A (en) * | 2011-04-26 | 2011-11-23 | 镇江康飞机器制造有限公司 | Sealing device between vertical wallboards of shelter |
| CN202879389U (en) * | 2012-10-29 | 2013-04-17 | 北汽福田汽车股份有限公司 | Sealing strip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106329829A (en) | 2017-01-11 |
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| CB03 | Change of inventor or designer information |
Inventor after: Cai Hengchuan Inventor after: Huang Lubin Inventor after: Wang Qingbo Inventor after: Gao Su Inventor after: Gu Dongsheng Inventor before: Cai Hengchuan Inventor before: Wang Qingbo Inventor before: Gao Su Inventor before: Gu Dongsheng |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210120 Address after: 250012 Qilu motor building, No.18 Huaxin Road, Lixia District, Jinan City, Shandong Province Patentee after: SHANDONG QILU ELECTRIC MOTOR MANUFACTURING Co.,Ltd. Address before: No.18, Huaxin Road, Lixia District, Jinan City, Shandong Province, 250012 Patentee before: SHANDONG QILU ELECTRIC MOTOR MANUFACTURING Co.,Ltd. Patentee before: SHANDONG JINAN POWER EQUIPMENT FACTORY Co.,Ltd. |