CN201137053Y - Hydraulic power plant draft-tube maintenance gate turning plate type locking apparatus - Google Patents
Hydraulic power plant draft-tube maintenance gate turning plate type locking apparatus Download PDFInfo
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- CN201137053Y CN201137053Y CNU2007200653662U CN200720065366U CN201137053Y CN 201137053 Y CN201137053 Y CN 201137053Y CN U2007200653662 U CNU2007200653662 U CN U2007200653662U CN 200720065366 U CN200720065366 U CN 200720065366U CN 201137053 Y CN201137053 Y CN 201137053Y
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- turnover panel
- cylinder
- hydraulic control
- locking device
- control system
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Abstract
The utility model relates to an turnover panel type locking device of a bulkhead gate of hydropower station draft tubes, which comprises a turnover panel, a rocker arm, a locking seat, a cylinder stand, a cylinder, a hydraulic control system and a sensed communication system of turnover panel switching positions, wherein one end of the cylinder is hinged on the cylinder stand and the other end is hinged on the rocker arm, the hydraulic control system controls action of the cylinder, signals of the sensed communication system of turnover panel switching positions are input in the hydraulic control system. The turnover panel locking device of a bulkhead gate of hydropower station draft tubes overcomes the weakness of the existing labor servo, which is convenient in operation and safety and high in efficiency.
Description
Technical field
The utility model relates to draft tube of hydropower station Emergency Gate locking device.
Background technology
Usually, draft tube of hydropower station Emergency Gate locking device all is manual.The working condition of manually-operated turnover panel locking device such as Fig. 1.Basic structure comprises turnover panel (1), rocking arm (4) and locking seat (5).Rocking arm and turnover panel are whole by welded connection, are installed on the locking seat (5) by hinge (8) then.The operator makes turnover panel-rocking arm rotate around hinge by the handle of pulling the rocking arm upper end.When turnover panel is in position shown in the solid line among Fig. 1, be duty.During work, the latch ear on the gate door body is sitting on the supporting work plane of turnover panel, and the sportsman is bearing in the parallel bars by both arms just like parallel bars.When gate is upwards mentioned suitable height by opening and closing facility, the operator pulls rocker handle makes turnover panel rotate when arriving certain position around hinge, is turnover panel locking device off working state.Gate can move down at keying facility control lower edge gate slot track and enter the operating position.But for some power station, this mode of operation can have problems.For example, because engineering specifications limits, the position of draft tube Emergency Gate locking device is relatively low, and manually servo have a difficulty of having inconvenient traffic; More there is the surge shaft water level to raise to operator's threat suddenly.
The utility model content
At above-mentioned defective of the prior art, provide a kind of draft tube of hydropower station Emergency Gate turnover plate type locking device with servo control mechanism.
The technical solution of the utility model is: comprise turnover panel, rocking arm, locking seat, also be provided with cylinder support, an end and be hinged on the other end on the cylinder support and be hinged on oil cylinder on the rocking arm, the hydraulic control system and the turnover panel opened and closed positions sensing communication system of control cylinder action; The signal of turnover panel opened and closed positions sensing communication system is input in the hydraulic control system.
The course of work of hydraulically powered turnover panel locking device is: the operator who obtains the turnover panel locking device presses starting button, and the hydraulic power unit starting under no load is pressed out (closing) button then, and hydraulic system is rotated around hinge by hydraulic oil cylinder driving turnover panel rocking arm.Open (closing) position when the turnover panel rocking arm rotates to arrive to design, turnover panel opened and closed positions sensing communication system triggers, and hydraulic power unit stops automatically.
Further, in hydraulic control system, also be provided with overpressure protection apparatus.When the reprint locking device was met unusual jam, the hydraulic system oil pressure raise, and triggered overpressure protection apparatus, and the operation control room has the sound and light alarm signal.These hydraulic control systems with and attached overpressure protection apparatus all be prior art.
The draft tube of hydropower station Emergency Gate turnover plate type locking device that the utility model provides has overcome existing artificial servo shortcoming, and is easy to operate, and safety is efficient.
Description of drawings
Fig. 1 manually-operated turnover plate type locking device schematic diagram;
Fig. 2 is the utility model embodiment lock-out state schematic diagram;
Fig. 3 is the utility model embodiment release conditions schematic diagrames;
Fig. 4 is the utility model embodiment hydraulic work system process.
The specific embodiment
Shown in Fig. 2,3, the draft tube of hydropower station Emergency Gate turnover plate type locking device that the utility model provides comprises turnover panel 1, Rocker arm 4, locking seat 5, also being provided with oil cylinder seat 2, an end is hinged on the other end on the oil cylinder seat 2 and is hinged on oil cylinder 3 on the Rocker arm 4, the hydraulic control system and the turnover panel opened and closed positions sensing communication system of 3 actions of control oil cylinder; The signal of turnover panel opened and closed positions sensing communication system is input in the hydraulic control system.
Hydraulic control system and turnover panel opened and closed positions sensing communication system all are contents of the prior art, and the utility model can be learned and be applied to those of ordinary skill.
The hydraulic work system process is:
When system obtains " locking " instruction:
1. Electric Machine at Pumping Station is low carries starting, hydraulic oil from the oil pump oil-out through automatically controlled three-position four-way valve meta, low pressure return check valve 7 (back pressure 1.5Mpa) oil sump tank.
2. automatically controlled three-position four-way valve DT1 gets electric, and coil promotes spool and moves to left, and hydraulic oil enters oil cylinder 2 rod chambers through three-position four-way valve, makes oil cylinder pulling Rocker arm 4 that turnover panel 1 is rotated to locking bit around hinge from discharging the position.
3. turnover panel 1 arrives the design latched position, touches the recoil simulator that puts in place, system's autostop.
When system obtains " release " instruction:
4. Electric Machine at Pumping Station is low carries starting, hydraulic oil from the oil pump oil-out through automatically controlled three-position four-way valve meta, low pressure return check valve oil sump tank.
5. automatically controlled three-position four-way valve DT2 gets electric, and coil promotes spool and moves to right, and hydraulic oil enters oil cylinder rodless cavity through three-position four-way valve, makes oil cylinder promote rocking arm the turnover panel lock-bit is rotated to discharging the position around hinge.
6. turnover panel arrives the design off-position, touches the recoil simulator that puts in place, system's autostop.
Hydraulic system is provided with overpressure protection apparatus, and when the turnover panel locking device was met unusual jam, the hydraulic system oil pressure raise, and triggered overpressure protection apparatus, and promptly pressure switch 6, and the operation control room has the sound and light alarm signal.
Claims (2)
1, a kind of draft tube of hydropower station Emergency Gate turnover plate type locking device, comprise turnover panel, rocking arm, locking seat, it is characterized in that also being provided with cylinder support, an end is hinged on the other end on the cylinder support and is hinged on oil cylinder on the rocking arm, the hydraulic control system and the turnover panel opened and closed positions sensing communication system of control cylinder action; The signal of turnover panel opened and closed positions sensing communication system is input in the hydraulic control system.
2, according to the described draft tube of hydropower station Emergency Gate of claim turnover plate type locking device, it is characterized in that also being provided with in the hydraulic control system overpressure protection apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200653662U CN201137053Y (en) | 2007-12-10 | 2007-12-10 | Hydraulic power plant draft-tube maintenance gate turning plate type locking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200653662U CN201137053Y (en) | 2007-12-10 | 2007-12-10 | Hydraulic power plant draft-tube maintenance gate turning plate type locking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201137053Y true CN201137053Y (en) | 2008-10-22 |
Family
ID=40037739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200653662U Expired - Lifetime CN201137053Y (en) | 2007-12-10 | 2007-12-10 | Hydraulic power plant draft-tube maintenance gate turning plate type locking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201137053Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619569B (en) * | 2009-07-14 | 2011-01-05 | 扬州楚门机电设备制造有限公司 | Steel gate locking device |
| CN102364170A (en) * | 2011-06-30 | 2012-02-29 | 哈尔滨电机厂有限责任公司 | Draft tube disk-shaped valve for overhauling large and medium-sized water turbine generator unit |
| CN101691746B (en) * | 2009-08-24 | 2012-07-25 | 黄河勘测规划设计有限公司 | Underwater hydraulic axis-penetrating locking device |
| CN104594303A (en) * | 2014-12-05 | 2015-05-06 | 竺珺 | Water conservancy gate device capable of being locked automatically |
-
2007
- 2007-12-10 CN CNU2007200653662U patent/CN201137053Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619569B (en) * | 2009-07-14 | 2011-01-05 | 扬州楚门机电设备制造有限公司 | Steel gate locking device |
| CN101691746B (en) * | 2009-08-24 | 2012-07-25 | 黄河勘测规划设计有限公司 | Underwater hydraulic axis-penetrating locking device |
| CN102364170A (en) * | 2011-06-30 | 2012-02-29 | 哈尔滨电机厂有限责任公司 | Draft tube disk-shaped valve for overhauling large and medium-sized water turbine generator unit |
| CN102364170B (en) * | 2011-06-30 | 2013-07-17 | 哈尔滨电机厂有限责任公司 | Draft tube disk-shaped valve for overhauling large and medium-sized water turbine generator unit |
| CN104594303A (en) * | 2014-12-05 | 2015-05-06 | 竺珺 | Water conservancy gate device capable of being locked automatically |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HYDROCHINA ZHONGNAN ENGINEERING CORPORATION Free format text: FORMER NAME: ZHONGNAN PROSPECTING DESIGN INST. CHINA HYDRAUELECTRIC CONSULTANT GROUP Owner name: CHINA POWER GROUP ZHONGNAN INVESTIGATION DESIGN + Free format text: FORMER NAME: HYDROCHINA ZHONGNAN ENGINEERING CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 410014, 9 camphor Road, Yuhua District, Hunan, Changsha Patentee after: HYDROCHINA ZHONGNAN ENGINEERING Corp. Address before: 410014, 9 camphor Road, Yuhua District, Hunan, Changsha Patentee before: Mid-South Hydroelectric Investigation & Design Institute of China Hydropower Engineering Consulting Group |
|
| CP03 | Change of name, title or address |
Address after: 410014 Hunan province Changsha Yuhua District, camphor Road No. 16 Patentee after: POWERCHINA ZHONGNAN ENGINEERING Corp.,Ltd. Address before: 410014, 9 camphor Road, Yuhua District, Hunan, Changsha Patentee before: HYDROCHINA ZHONGNAN ENGINEERING Corp. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081022 |
|
| CX01 | Expiry of patent term |