CN2739362Y - Steam feed pump steam turbine high-speed barring gear for variable frequency speed governer - Google Patents
Steam feed pump steam turbine high-speed barring gear for variable frequency speed governer Download PDFInfo
- Publication number
- CN2739362Y CN2739362Y CN 200420090680 CN200420090680U CN2739362Y CN 2739362 Y CN2739362 Y CN 2739362Y CN 200420090680 CN200420090680 CN 200420090680 CN 200420090680 U CN200420090680 U CN 200420090680U CN 2739362 Y CN2739362 Y CN 2739362Y
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- China
- Prior art keywords
- gear
- motor
- barring
- speed
- variable frequency
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- Expired - Lifetime
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Abstract
The utility model relates to a steam feed pump steam turbine high-speed barring gear, specifically a steam feed pump steam turbine high-speed barring gear for a variable frequency speed governor, comprising a barring gear and a motor. The output shaft of the motor is connected with the gear of the barring gear, the motor is connected with the variable frequency speed governor, and the variable frequency speed governor is connected with a programmable controller. The utility model adopts the variable frequency speed governor for barring, simultaneously satisfying the requirements on the engagement of the gear and the minimum rotational speed of a water pump, and preventing the gear bashing when barring. The motor can output large enough starting torque after the barring gear is engaged fully, and finally higher barring rotational speed can be obtained.
Description
(1) technical field
The utility model relates to the steam feed pump steam turbine high speed jigger device.
(2) background technique
Traditional steam feed pump rolling gear of turbine adopts normal asynchronous, makes the jiggering rotating speed reach 10r/min, 40r/min by the cycloidal-pin wheel retarder, but when steam feed pump group low speed jiggering, water pump bite phenomenon in various degree takes place often.According to the makers' requirement of feed water pump, the minimum speed of water pump could be set up oil film at the axle journal place more preferably greater than 100r/min.Adopt normal asynchronous, selecting suitable retarder for use is to reach jiggering rotating speed 100r/min, if but improve the jiggering rotating speed, just must strengthen power of electric motor, the also corresponding increase of its boundary dimension of the raising of motor power (output), yet turning round equipment is arranged in rear bearing block and covers, it is between the volute and feed water pump of exhaust casing, and installing space is very limited, and carries out in the engagement process at gear, because rotating speed improves, gear easily breaks.
(3) summary of the invention
The purpose of this utility model is to provide a kind of steam feed pump steam turbine high speed jigger device of variable-frequency governor, it has overcome prior art gear when jiggering and has easily broken, increase the limited defective in motor power (output) space, adopt frequency control of motor speed to carry out jiggering, can satisfy the minimum speed requirement of steady engagement of jiggering gear low speed and feed water pump simultaneously, prevent from when jiggering, to take place gear and break phenomenon; Mesh this device of back fully at the jiggering gear and can make the enough big starting torque of motor output, and finally reach higher jiggering rotating speed.
The utility model is achieved in that a kind of steam feed pump steam turbine high speed jigger device of variable-frequency governor, comprise barring gear, motor, the output shaft of motor connects the gear of barring gear, and motor connects variable-frequency governor, and variable-frequency governor connects programmable controller.
The utility model has adopted programmable controller PLC and variable-frequency governor that motor is controlled, and has cancelled the cycloidal-pin wheel retarding device in traditional jiggering.By changing motor frequency, in jiggering gear meshing and disconnecting process, adopt lower frequency, thereby make engagement and when throwing off the rotating speed of motor drives gear lower, what prevented to cause because of rotating speed is too fast beats tooth phenomenon, the bite phenomenon when having avoided jiggering simultaneously; Mesh the back fully at the jiggering gear and adopt upper frequency, make the enough big starting torque of motor output, guarantee that the steam feed pump group overcomes starting resistance, thereby reach higher jiggering rotating speed.
(4) description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the steam feed pump steam turbine high speed jigger device structural representation of the utility model variable-frequency governor.
Among the figure: 1 barring gear, 2 gears, 3 output shafts, 4 motor.
(5) embodiment
Referring to Fig. 1, a kind of steam feed pump steam turbine high speed jigger device of variable-frequency governor, comprise the output shaft 3 of barring gear 1, motor 4, motor 4, the gear 2 of connection barring gear 1, motor 4 connects variable-frequency governor, by variable-frequency governor control motor speed, variable-frequency governor connects programmable controller, and variable-frequency governor is subjected to the control of programmable controller.In the gear engagement and disconnecting process of barring gear 1, variable-frequency governor output lower frequency control motor 4, thereby make engagement and when throwing off the rotating speed of motor 4 driven gears lower, what prevented to cause because of rotating speed is too fast beats the tooth phenomenon, the while has also been avoided the bite phenomenon.Mesh back variable-frequency governor output upper frequency fully at barring gear 1 gear, make the enough big starting torque of motor 4 outputs, guarantee that the steam feed pump group overcomes starting resistance, thereby reach higher jiggering rotating speed.
Claims (1)
1. the steam feed pump steam turbine high speed jigger device of a variable-frequency governor comprises barring gear, motor, it is characterized in that the output shaft of motor connects the gear of barring gear, and motor connects variable-frequency governor, and variable-frequency governor connects programmable controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090680 CN2739362Y (en) | 2004-09-29 | 2004-09-29 | Steam feed pump steam turbine high-speed barring gear for variable frequency speed governer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090680 CN2739362Y (en) | 2004-09-29 | 2004-09-29 | Steam feed pump steam turbine high-speed barring gear for variable frequency speed governer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2739362Y true CN2739362Y (en) | 2005-11-09 |
Family
ID=35354428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420090680 Expired - Lifetime CN2739362Y (en) | 2004-09-29 | 2004-09-29 | Steam feed pump steam turbine high-speed barring gear for variable frequency speed governer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2739362Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106536872A (en) * | 2014-11-05 | 2017-03-22 | 三菱重工压缩机有限公司 | Turning apparatus |
| CN106574517A (en) * | 2014-10-30 | 2017-04-19 | 三菱重工压缩机有限公司 | Turning device |
| CN113931708A (en) * | 2021-09-29 | 2022-01-14 | 华能山东石岛湾核电有限公司 | Steam turbine barring drive circuit and device |
-
2004
- 2004-09-29 CN CN 200420090680 patent/CN2739362Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574517A (en) * | 2014-10-30 | 2017-04-19 | 三菱重工压缩机有限公司 | Turning device |
| US10487658B2 (en) | 2014-10-30 | 2019-11-26 | Mitsubishi Heavy Industries Compressor Corporation | Turning device |
| CN106536872A (en) * | 2014-11-05 | 2017-03-22 | 三菱重工压缩机有限公司 | Turning apparatus |
| CN113931708A (en) * | 2021-09-29 | 2022-01-14 | 华能山东石岛湾核电有限公司 | Steam turbine barring drive circuit and device |
| CN113931708B (en) * | 2021-09-29 | 2023-11-21 | 华能山东石岛湾核电有限公司 | Steam turbine jigger driving circuit and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ELECTRIC POWER STATION EQUIPMENT CO. Free format text: FORMER OWNER: SHANGHAI TURBINE CO., LTD. Effective date: 20080509 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080509 Address after: No. 188, Chun Chun Road, Shanghai, Minhang: 201100 Patentee after: Shanghai Electric Station Equipment Co., Ltd. Address before: No. 333, Jiangchuan Road, Shanghai, Minhang District: 200240 Patentee before: Shanghai Steam Turbine Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140929 Granted publication date: 20051109 |