CN200946714Y - Water inlet ball valve servomotor of water turbine - Google Patents
Water inlet ball valve servomotor of water turbine Download PDFInfo
- Publication number
- CN200946714Y CN200946714Y CN 200620035590 CN200620035590U CN200946714Y CN 200946714 Y CN200946714 Y CN 200946714Y CN 200620035590 CN200620035590 CN 200620035590 CN 200620035590 U CN200620035590 U CN 200620035590U CN 200946714 Y CN200946714 Y CN 200946714Y
- Authority
- CN
- China
- Prior art keywords
- servomotor
- ball valve
- water turbine
- piston
- intake ball
- 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.)
- Expired - Fee Related
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- Details Of Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a water turbine intake ball valve servomotor, a vertical cylinder rocking servomotor adopting the rubber high pressure soft pipe oil distributing structure. A cushioning device is arranged on the journey end of the servomotor. The oil seal device adopts a combined seal ring. The contact between the piston and the cylinder roller is a non-noumenon contact. The piston rod adopts sealed multi-layer rubber. A guide bush is arranged on the upper end cover of the servomotor rod. The servomotor can be controlled remotely through the central control room. The utility model has the advantages of good rigidity, excellent craftwork, being adjustable and repairable alone, simple oil pipe system, good oil sealing ability, simple structure and light weight, which guarantee the reliable performance of the water turbine unit.
Description
Technical field
The utility model belongs to hydroturbine water intake ball valve, particularly the servomotor of hydroturbine water intake ball valve.
Background technique
Water intake ball valve is one of the important electromechanical equipment in water power plant, because the specific (special) requirements of hydraulic turbine operation, there is certain problem in the operation of universal serial ball valve in the power station of domestic manufacturer's production at present, the phenomenon that causes unit to use happens occasionally, wherein one of major reason is that the employing of annular servomotor makes the ball valve spindle nose poorly sealed the most, the serious leakage of oil of servomotor, water causes profit to mix mutually after entering cylinder body, emulsification oil, pollute oil sources, have a strong impact on the performance of water intake ball valve, even cause the oil gear of hundreds thousand of units to be scrapped, and also there is installation in servomotor, the problem of maintenance difficulty also has a strong impact on hydraulic turbine generator and runs well.
Summary of the invention
The purpose of this utility model is to provide a kind of water turbine water intake ball valve servomotor, adopt the swing servomotor of straight-cylinder, and by optimizing and improving, it is poorly sealed to solve existing servomotor, the shortcoming that install, maintenance is difficult, guarantee the water intake ball valve quality, guarantee the reliable operation of hydraulic turbine generator unit.
The technological scheme that the utility model adopted is: a kind of water turbine water intake ball valve servomotor, be the swing servomotor of straight-cylinder, adopt the rubber high pressure hose to join oily structure, the end of travel of servomotor is provided with damping device, and oil sealer adopts combined seal ring, and piston is non-body contact with contacting of cylinder barrel, piston rod adopts multilayer rubber sealing, relay bar upper end cap is established guide sleeve, and servomotor connects central control chamber by circuit, and servomotor is by the central control chamber telecontrol.
For simplifying tubing system, simplify the servomotor structure, reduce the servomotor overall weight, adopt the rubber high pressure hose to join oily structure.
The damping device of servomotor stroke terminal setting can effectively prevent the impact that piston produces cylinder body in the stroke end.
For preventing that inner wall of cylinder from damaging because of the frequent friction of piston bore, piston is non-body contact with contacting of cylinder barrel, adopts the structure of main supporting ring+aiding support ring, is provided with "T"-shaped main supporting ring and " one " font aiding support ring.
Servomotor piston rod shank portion hard plating makes piston be unlikely the corrosion combined seal ring.
Piston rod adopts the rubber seal of multilayer V-type, and dust guard is set.
The guide sleeve that relay bar upper end cap is provided with guarantees that in order to the motion that guarantees piston disalignment line not the sealing of piston and piston rod can proper functioning.
Because the position of seal ring opens and closes most important for valve, for accurately reflecting seal ring or sealing cover position, with servomotor supporting spherical valve upstream and downstream seal ring position limit switch is set, position limit switch is connected to central control chamber by circuit, central control chamber operation servomotor is finished the control to ball valve.Under the ball valve normal operating state, can select to open or the shut-in time in 60～90s scope, regulated by the throttling arrangement on the servomotor oil circuit switching time,
Advantage of the present utility model is, the swing servomotor good rigidly of straight-cylinder, technology are good, can adjust separately, overhaul, join non-body contact structure of oily structure, end of travel damping device, piston and cylinder barrel by the rubber high pressure hose is set, the relay rod guidance adopts piston rod hard plating, V-type combined seal ring to nested structure, the central control chamber telecontrol, realize effective sealing of water intake ball valve, prolong its working life, guaranteed the reliably working of water turbine units.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is a cut-away view of the present utility model
Among the figure: 1, maintenance sealing, 2, working seal, 3, valve body, 4, valve, 5, servomotor.
Embodiment
As shown in Figure 1 and Figure 2, a kind of water turbine water intake ball valve servomotor 5, be the swing servomotor of straight-cylinder, adopt the rubber high pressure hose to join oily structure, the end of travel of servomotor is provided with damping device, oil sealer adopts combined seal ring, piston is non-body contact with contacting of cylinder barrel, and piston rod adopts multilayer rubber sealing, and relay bar upper end cap is established guide sleeve, servomotor connects central control chamber by circuit, and servomotor is by the central control chamber telecontrol.
Piston contacts the structure that has adopted main supporting ring+aiding support ring with the non-body that contacts of cylinder barrel, is provided with "T"-shaped main supporting ring and " one " font aiding support ring.
Piston rod shank portion hard plating, piston rod adopt the rubber seal of multilayer V-type, and dust guard is set.
With servomotor maintenance sealing 1 on the supporting spherical valve valve body 3 and the seal ring of working seal 2 position limit switch is set, position limit switch is connected to central control chamber by circuit, central control chamber operation servomotor is finished the control to ball valve.
The keying of valve 4 is subjected to servomotor 5 controls.
When valve will be opened, working seal ring 2 is adjusted to fully open position, rotate valve 4 then, when servomotor 5 makes valve 4 forward fully open position to, current when valve will be closed, at first forward valve to the complete shut-down position by the ball valve proper flow, and the working seal ring is transferred to the complete shut-down position, current will be blocked by ball valve.
Under the normal operating state of ball valve, can in 60～90s scope, select one to open or the shut-in time arbitrarily.
Claims (4)
1, a kind of water turbine water intake ball valve servomotor, be the swing servomotor of straight-cylinder, it is characterized in that adopting the rubber high pressure hose to join oily structure, the end of travel of servomotor is provided with damping device, oil sealer adopts combined seal ring, and piston is non-body contact with contacting of cylinder barrel, and piston rod adopts multilayer rubber sealing, relay bar upper end cap is established guide sleeve, and servomotor connects central control chamber by circuit.
2, water turbine water intake ball valve servomotor according to claim 1 is characterized in that the non-body that contacts of piston and cylinder barrel contacts the structure that has adopted main supporting ring+aiding support ring, is provided with "T"-shaped main supporting ring and " one " font aiding support ring.
3, water turbine water intake ball valve servomotor according to claim 1 is characterized in that piston rod adopts the rubber seal of multilayer V-type, and dust guard is set.
4, water turbine water intake ball valve servomotor according to claim 1, it is characterized in that with servomotor maintenance sealing on the supporting spherical valve valve body and the seal ring of working seal position limit switch is set, position limit switch is connected to central control chamber by circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620035590 CN200946714Y (en) | 2006-09-15 | 2006-09-15 | Water inlet ball valve servomotor of water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620035590 CN200946714Y (en) | 2006-09-15 | 2006-09-15 | Water inlet ball valve servomotor of water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200946714Y true CN200946714Y (en) | 2007-09-12 |
Family
ID=38733777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620035590 Expired - Fee Related CN200946714Y (en) | 2006-09-15 | 2006-09-15 | Water inlet ball valve servomotor of water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200946714Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865069A (en) * | 2010-06-09 | 2010-10-20 | 常州液压成套设备厂有限公司 | Locking device for servomotor |
| CN103388552A (en) * | 2013-05-23 | 2013-11-13 | 国家电网公司 | Ball valve control device for hydroelectric generating set and control method thereof |
| CN110959070A (en) * | 2017-07-27 | 2020-04-03 | 福伊特专利有限公司 | Hydroelectric power plant comprising an electric drive for actuating a flow control valve |
-
2006
- 2006-09-15 CN CN 200620035590 patent/CN200946714Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865069A (en) * | 2010-06-09 | 2010-10-20 | 常州液压成套设备厂有限公司 | Locking device for servomotor |
| CN103388552A (en) * | 2013-05-23 | 2013-11-13 | 国家电网公司 | Ball valve control device for hydroelectric generating set and control method thereof |
| CN103388552B (en) * | 2013-05-23 | 2015-12-02 | 国家电网公司 | Hydropower Unit valve control device and controlling method thereof |
| CN110959070A (en) * | 2017-07-27 | 2020-04-03 | 福伊特专利有限公司 | Hydroelectric power plant comprising an electric drive for actuating a flow control valve |
| US10859060B2 (en) | 2017-07-27 | 2020-12-08 | Voith Patent Gmbh | Hydroelectric power plant having an electrical drive for actuating the inlet valve |
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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: DEC DONGFENG ELECTRIC MACHINERY CO., LTD. Free format text: FORMER NAME: DONGFENG MOTOR FACTORY CO., LTD., SICHUAN |
|
| CP03 | Change of name, title or address |
Address after: 614802 Sichuan city of Leshan province Wutongqiao Dec Dongfeng Motor Co. Ltd. Patentee after: DEC Dongfeng Electric Machinery Co., Ltd. Address before: 614802 Sichuan city of Leshan province Wutongqiao Sichuan Dongfeng Motor Factory Co Ltd Patentee before: Dongfeng Motor Factory Co., Ltd., Sichuan |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070912 Termination date: 20130915 |