CN204647525U - The ball valve of water turbine of double locking - Google Patents
The ball valve of water turbine of double locking Download PDFInfo
- Publication number
- CN204647525U CN204647525U CN201520247301.4U CN201520247301U CN204647525U CN 204647525 U CN204647525 U CN 204647525U CN 201520247301 U CN201520247301 U CN 201520247301U CN 204647525 U CN204647525 U CN 204647525U
- Authority
- CN
- China
- Prior art keywords
- valve
- ball valve
- surges
- connecting tube
- water turbine
- 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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Abstract
The utility model relates to a kind of ball valve of water turbine of double locking, there is the ball valve that surges, the described ball valve that surges is provided with upstream connecting tube and downstream connecting tube, upstream connecting tube is provided with bypass tube and is connected with the ball valve that surges, bypass tube and surge between ball valve and be provided with hand sluice valve, surge between ball valve and downstream connecting tube and be provided with expansion bend, described downstream connecting tube is provided with gate valve and the needle type valve that surges, gate valve is provided with outlet valve, surge needle type valve be located at the bypass expansion bend surged on ball valve and be connected, the described ball valve that surges is connected with oil cylinder.Structure of the present utility model is simple, is convenient to block upland water, reduces stator and leaks, prevent unit from wriggling, can manual and motor-driven opening/shutting valve, raising safety coefficient, while easy access, using scope is wide.
Description
Technical field
The utility model relates to a kind of ball valve of water turbine of double locking.
Background technique
Water turbine is one of the important electromechanical equipment in water power plant, that in water power plant, pipeline system blocks or is communicated with the ideal equipment of medium, in order to ensure the safe and reliable operation of water turbine, the water inlet of water turbine is all equiped with water intake ball valve, upstream and liaison of penstock, downstream is connected with hydroturbine water intake spiral case, the current in this valve cut-out pressure steel pipe are passed through on the one hand when water turbine and maintenance for generation companies, ensure the safety of maintenance, effectively current can be cut off on the other hand when water turbine and generator occur abnormal, the generation of Accident prevention, due to the particular/special requirement of hydraulic turbine operation, general ball valve can not meet the usage requirement of working condition system in the operation in water power plant, the phenomenon causing unit to run also happens occasionally, when unit Long-time Shut-down, block upland water, stator can produce and leak, unit also can produce wriggling, set speed adjustment systematic failures occurs more, and dynamic water cannot emergency cut-off, fault spread, when a water delivery house steward supplies water to several units, when wherein a unit needs to overhaul, in order to block current, affect the normal operation of other unit.
Model utility content
The technical problems to be solved in the utility model is: overcome the deficiency in prior art, provides one to be convenient to block upland water, reduces stator and leaks, prevent unit from wriggling, can the ball valve of water turbine of double locking of manual and motor-driven opening/shutting valve.
The utility model solves the technological scheme that its technical problem adopts: a kind of ball valve of water turbine of double locking, there is the ball valve that surges, the described ball valve that surges is provided with upstream connecting tube and downstream connecting tube, upstream connecting tube is provided with bypass tube and is connected with the ball valve that surges, bypass tube and surge between ball valve and be provided with hand sluice valve, surge between ball valve and downstream connecting tube and be provided with expansion bend, described downstream connecting tube is provided with gate valve and the needle type valve that surges, gate valve is provided with outlet valve, surge needle type valve be located at the bypass expansion bend surged on ball valve and be connected, the described ball valve that surges is connected with oil cylinder.
Further, the top of the described ball valve that surges is provided with differential pressure controller, is convenient to the pressure reduction detecting upstream and downstream connecting tube, improves the safety coefficient of ball valve.
Further, described bypass tube is provided with service valve, valve opening and closing forward horizontal stand upstream and downstream pressure reduction, avoids opening/shutting valve under total head difference to occur water hammer and effectively reduces the operation torque of valve.
Further, described upstream connecting tube adopts and detects sealing and downstream connecting tube employing working seal, and manual locking device is established in maintenance sealing, overhaul sealing during normal work and be in normally open, only dropping into when unit maintenance, for ensureing the Security of downstream maintenance, should manually locking be dropped into; Working seal drops into when valve closing, exits before spheroid action.For ensureing that valve can in case of emergency be closed rapidly, after valve reaches standard-sized sheet, working seal is still in exit status.
The beneficial effects of the utility model are: structure of the present utility model is simple, is convenient to block upland water, reduce stator and leak, prevent unit from wriggling, can manual and motor-driven opening/shutting valve, raising safety coefficient, while easy access, using scope is wide.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
In figure, 1. surge ball valve, 2. upstream connecting tube, 3. downstream connecting tube, 4. bypass tube, 5. hand sluice valve, 6. gate valve, 7. outlet valve, 8. expansion bend, and 9. surge needle type valve, 10. bypass expansion bend, 11. oil cylinders, 12. differential pressure controllers, 13. service valves.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, and therefore it only shows the formation relevant with the utility model.
The ball valve of water turbine of a kind of double locking as shown in Figure 1, there is the ball valve 1 that surges, the described ball valve 1 that surges is provided with upstream connecting tube 2 and downstream connecting tube 3, upstream connecting tube 2 is provided with bypass tube 4 and is connected with the ball valve 1 that surges, bypass tube 4 and surge between ball valve 1 and be provided with hand sluice valve 5, surge between ball valve 1 and downstream connecting tube 3 and be provided with expansion bend 8, described downstream connecting tube 3 is provided with gate valve 6 and the needle type valve 9 that surges, gate valve 6 is provided with outlet valve 7, surge needle type valve 9 be located at the bypass expansion bend 10 surged on ball valve 1 and be connected, the described ball valve 1 that surges is connected with oil cylinder 11, the surge top of ball valve 1 is provided with differential pressure controller 12, bypass tube 4 is provided with service valve 13, trip connecting tube 2 adopts detection sealing and downstream connecting tube 3 to adopt working seal.
Concrete when startup Oil pump electrical machinery group, oil pump stops after pressure oil is inputted energy storage tank to rated pressure, open bypass tube 4, medium enters and surges in the housing of ball valve 1, outlet valve 7 automatic vent, when before and after valve, pressure difference reaches setting value, latch-release, working seal is removed, when the spheroid of the ball valve 1 that surges rotates within the scope of 90 ° thereupon, ball valve is opened into standard-sized sheet, closes bypass tube 4.
Above-mentioned mode of execution is only for illustrating technical conceive of the present utility model and feature; its object is to person skilled in the art can be understood content of the present utility model and be implemented; protection domain of the present utility model can not be limited with this; all equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (4)
1. the ball valve of water turbine of a double locking, there is the ball valve that surges (1), it is characterized in that: the described ball valve that surges (1) is provided with upstream connecting tube (2) and downstream connecting tube (3), upstream connecting tube (2) is provided with bypass tube (4) and is connected with the ball valve that surges (1), hand sluice valve (5) is provided with between bypass tube (4) and the ball valve that surges (1), surge between ball valve (1) and downstream connecting tube (3) and be provided with expansion bend (8), described downstream connecting tube (3) is provided with gate valve (6) and the needle type valve that surges (9), gate valve (6) is provided with outlet valve (7), the needle type valve (9) that surges is connected with the bypass expansion bend (10) be located on the ball valve that surges (1), the described ball valve that surges (1) is connected with oil cylinder (11).
2. the ball valve of water turbine of double locking according to claim 1, is characterized in that: the top of the described ball valve that surges (1) is provided with differential pressure controller (12).
3. the ball valve of water turbine of double locking according to claim 1, is characterized in that: described bypass tube (4) is provided with service valve (13).
4. the ball valve of water turbine of double locking according to claim 1, is characterized in that: described upstream connecting tube (2) adopts and detects sealing and downstream connecting tube (3) employing working seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520247301.4U CN204647525U (en) | 2015-04-22 | 2015-04-22 | The ball valve of water turbine of double locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520247301.4U CN204647525U (en) | 2015-04-22 | 2015-04-22 | The ball valve of water turbine of double locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204647525U true CN204647525U (en) | 2015-09-16 |
Family
ID=54100276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520247301.4U Expired - Fee Related CN204647525U (en) | 2015-04-22 | 2015-04-22 | The ball valve of water turbine of double locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204647525U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368886A (en) * | 2016-11-15 | 2017-02-01 | 国家电网公司 | Ball valve upstream and downstream seal control method and control system |
-
2015
- 2015-04-22 CN CN201520247301.4U patent/CN204647525U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368886A (en) * | 2016-11-15 | 2017-02-01 | 国家电网公司 | Ball valve upstream and downstream seal control method and control system |
| CN106368886B (en) * | 2016-11-15 | 2019-08-27 | 国家电网公司 | A kind of ball valve upstream and downstream sealing control method and control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160422 |