CN214424622U - Impact speed regulator - Google Patents
Impact speed regulator Download PDFInfo
- Publication number
- CN214424622U CN214424622U CN202120267433.9U CN202120267433U CN214424622U CN 214424622 U CN214424622 U CN 214424622U CN 202120267433 U CN202120267433 U CN 202120267433U CN 214424622 U CN214424622 U CN 214424622U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- servomotor
- solenoid valve
- valve
- chamber
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model provides an impact speed regulator relates to the speed regulator field, including the stop valve, the nozzle solenoid valve, the hydraulic pressure lock, the nozzle servomotor, the contact, nozzle feedback potentiometer, roll over to ware action solenoid valve, switching-over valve and roll over to the ware servomotor that surges, the nozzle solenoid valve includes nozzle start solenoid valve and nozzle shutdown solenoid valve, the nozzle servomotor includes start-up chamber A and shut-down chamber B, the contact includes full open contact and full close contact, roll over to the ware servomotor and include the M chamber that meets with pressure oil and with the N chamber that the row of oil meets. The hydraulic lock is adopted for sealing, so that the series of speed regulators have the function of locking a spindle in a fault manner under the conditions of disappearance of frequency measurement signals, power failure and the like; the digital valve hydraulic servo system is adopted, manual operation does not need feedback, a lever is omitted, dead zones caused by the lever are eliminated, the precision of the speed regulating system is improved, and the digital valve hydraulic servo system is free of pipelines, simple in structure and attractive in appearance.
Description
Technical Field
The utility model relates to a speed regulator field especially relates to an impact type speed regulator.
Background
The water turbine speed regulator is used as important equipment of a hydraulic power plant, plays a key role in normal operation of the hydraulic power plant, is inseparable from the work of whether the hydraulic power plant can normally generate electricity, and is directly related to safe and stable operation of a water turbine unit and even an electric power system once the speed regulator fails.
At present, the PLC is widely applied to the water turbine speed regulator, however, most speed regulator manufacturers adopt the conventional PLC, the conventional PLC adopts a ladder diagram, an instruction list and a corresponding flow chart, and the conventional PLC, the instruction list and the corresponding flow chart are oriented to hardware simulation and adopt a program scanning operation mode. The method occupies much time of the CPU and has low operation efficiency. In addition, the speed governor of the water turbine has particularity, and a conventional PLC is adopted, so that a plurality of circuits are added by a speed governor manufacturer, and the reliability of the whole speed governor is limited.
Therefore, designing an impact governor becomes a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide an impact speed regulator.
The utility model discloses a realize through following technical scheme: the utility model provides an impact type speed regulator, its characterized in that includes stop valve, nozzle solenoid valve, hydraulic pressure lock, nozzle servomotor, contact, nozzle feedback potentiometer, folder action solenoid valve, switching-over valve and folder servomotor surges, the nozzle solenoid valve includes nozzle start solenoid valve and nozzle shut-off solenoid valve, the nozzle servomotor is equipped with start-up chamber A and shut-off chamber B, the contact includes full open contact and full close contact, the folder servomotor is equipped with the M chamber that meets with pressure oil and the N chamber that meets with the oil extraction.
According to the technical scheme, preferably, the nozzle electromagnetic valve, the hydraulic lock, the nozzle servomotor, the contact and the nozzle feedback potentiometer are positioned on the same integrated body, and the deflector action electromagnetic valve, the hydraulic reversing valve and the deflector servomotor are sequentially connected.
According to the technical scheme, the hydraulic lock is preferably a superposition type hydraulic control one-way valve.
According to the technical scheme, preferably, a nozzle turn-off adjusting pad and a nozzle turn-on adjusting pad are arranged outside the hydraulic lock.
According to the technical scheme, preferably, the deflector action electromagnetic valve is connected with a pressure gauge.
The utility model has the advantages that: the hydraulic lock is adopted for sealing, so that the series of speed regulators have the function of locking a spindle in a fault manner under the conditions of disappearance of frequency measurement signals, power failure and the like; the digital valve hydraulic servo system is adopted, manual operation does not need feedback, a lever is omitted, dead zones caused by the lever are eliminated, the precision of the speed regulating system is improved, and the digital valve hydraulic servo system is free of pipelines, simple in structure and attractive in appearance.
Drawings
Fig. 1 shows a block diagram of an embodiment of the invention.
In the figure: 1. a stop valve; 2. hydraulic locking; 3. a nozzle servomotor; 4. a nozzle feedback potentiometer; 5. a deflector actuation solenoid valve; 6. a hydraulically operated directional control valve; 7. a deflector servomotor; 8. starting the electromagnetic valve of the nozzle; 9. the nozzle shuts off the electromagnetic valve; 10. starting the machine cavity A; 11. a shutdown cavity B; 12. fully opening the contact; 13. a full-off contact; 14. an M cavity; 15. an N cavity; 16. a nozzle shutdown adjustment pad; 17. starting up the nozzle to adjust the pad; 18. a superposed hydraulic control one-way valve; 19. and a pressure gauge.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
As shown in the figure, the utility model provides an impact speed regulator, a serial communication port, including stop valve 1, nozzle solenoid valve, hydraulic pressure lock 2, nozzle servomotor 3, the contact, nozzle feedback potentiometer 4, deflector action solenoid valve 5, switching-over valve 6 and deflector servomotor 7 that surges, the nozzle solenoid valve includes nozzle start solenoid valve 8 and nozzle shut-off solenoid valve 9, the nozzle servomotor is equipped with start-up chamber A10 and shut-off chamber B11, the contact includes full open contact 12 and full close contact 13, deflector servomotor 7 is equipped with the M chamber 14 that meets with pressure oil and the N chamber 15 that meets with the oil extraction.
According to the above embodiment, preferably, the nozzle solenoid valve, the hydraulic lock 2, the nozzle relay 3, the contact and the nozzle feedback potentiometer 4 are located on the same integrated body, and the deflector actuation solenoid valve 5, the hydraulic directional valve 6 and the deflector relay 7 are connected in sequence.
According to the above embodiment, the hydraulic lock 2 is preferably a superimposed pilot operated check valve 18.
According to the above embodiment, preferably, the exterior of the hydraulic lock 2 is provided with the nozzle-off regulation pad 16 and the nozzle-on regulation pad 17.
According to the above embodiment, it is preferable that the deflector operation solenoid valve 5 is connected to the pressure gauge 19.
Example 1: automatic operation
When the rotation speed of the unit is normal, the electric part of the speed regulator sends a return command to the electromagnetic valve for shutting down the nozzle, namely the electromagnetic valve for shutting down the nozzle is de-energized, namely the electromagnetic valve for shutting down the nozzle is electrified and excited, namely a nozzle servomotor closing cavity B is communicated with pressure oil P, at the moment, a nozzle hydraulic lock is opened, a nozzle servomotor opening cavity A is communicated with oil discharge O through a lower position of the electromagnetic valve for starting up the nozzle, the nozzle servomotor moves downwards, and a potentiometer is fed back through the nozzle (the position signal of the nozzle servomotor is converted into an electric signal to be fed back to the electric part of the speed regulator.
When the rotating speed of the unit is reduced, the electric part of the speed regulator sends a signal to the nozzle starting electromagnetic valve, the signal moves to the starting side, namely the nozzle starting electromagnetic valve is electrified and excited, namely the nozzle servomotor starting cavity A is communicated with pressure oil P, the nozzle hydraulic lock is opened at the moment, the nozzle servomotor closing cavity B is communicated with oil O through the lower part of the nozzle stopping electromagnetic valve, the nozzle servomotor moves upwards, and the nozzle servomotor position signal is converted into an electric signal through the nozzle feedback potentiometer to be fed back to the electric part of the speed regulator. When the rotating speed of the unit is normal, the electric part of the speed regulator sends a return command to the nozzle starting electromagnetic valve, namely the nozzle starting electromagnetic valve is de-energized, namely the nozzle starting electromagnetic valve returns to the state shown in the figure, the nozzle hydraulic lock is closed, the nozzle servomotor stops moving, and the unit stably operates in a new working condition.
Example 2: electric and manual operation
When the rotating speed of the unit rises, the nozzle servomotor is manually clicked, and the electric and manual shutdown button is also manually operated, namely the nozzle shutdown electromagnetic valve is electrified and excited, and the action principle of the nozzle shutdown electromagnetic valve is the same as that of the automatic operation.
When the rotating speed of the unit is reduced, the nozzle servomotor is manually clicked, and the electric and manual starting button is also manually operated, namely the nozzle starting electromagnetic valve is electrified and excited, and the action principle of the nozzle starting electromagnetic valve is the same as that of the automatic operation.
Example 3: operated manually
When the rotation speed of the unit rises, the action principle of the hand button of the nozzle shutdown electromagnetic valve (item 4) is the same as that of the automatic operation.
When the rotation speed of the unit is reduced, the nozzle starting electromagnetic valve (item 3) is pushed by hand, and the action principle is the same as the automatic operation condition.
In addition, when the unit is used for load shedding, the electric part of the speed regulator sends out a signal, the electromagnet of the deflector action electromagnetic valve is electrified and excited, the control cavity of the hydraulic control reversing valve is connected with pressure oil, the hydraulic control reversing valve is communicated with the upper part, the cavity M of the deflector servomotor is connected with the pressure oil, the cavity N of the deflector is connected with oil discharge, and the deflector is rapidly put into the tank to shield jet flow. When the nozzle servomotor is closed in place, the electromagnet of the deflector action electromagnetic valve is de-energized, namely the deflector action electromagnetic valve is restored to the state shown in the figure, the deflector rapidly exits, and the speed regulator is restored to normal regulation.
The utility model has the advantages that: the hydraulic lock is adopted for sealing, so that the series of speed regulators have the function of locking a spindle in a fault manner under the conditions of disappearance of frequency measurement signals, power failure and the like; the digital valve hydraulic servo system is adopted, manual operation does not need feedback, a lever is omitted, dead zones caused by the lever are eliminated, the precision of the speed regulating system is improved, and the digital valve hydraulic servo system is free of pipelines, simple in structure and attractive in appearance.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides an impact type speed regulator, its characterized in that includes stop valve, nozzle solenoid valve, hydraulic pressure lock, nozzle servomotor, contact, nozzle feedback potentiometer, folder action solenoid valve, switching-over valve and folder servomotor surges, the nozzle solenoid valve includes nozzle start solenoid valve and nozzle shut-off solenoid valve, the nozzle servomotor is equipped with start-up chamber A and shut-off chamber B, the contact includes full open contact and full close contact, the folder servomotor is equipped with the M chamber that meets with pressure oil and the N chamber that meets with the oil extraction.
2. The impact governor of claim 1, wherein the nozzle solenoid valve, the hydraulic lock, the nozzle servomotor, the contact and the nozzle feedback potentiometer are located on the same integrated body, and the deflector actuation solenoid valve, the hydraulic directional valve and the deflector servomotor are connected in sequence.
3. The impact governor of claim 1, wherein the hydraulic lock is a stacked pilot operated check valve.
4. An impact governor according to claim 1, wherein the hydraulic lock is externally provided with a nozzle-off adjustment pad and a nozzle-on adjustment pad.
5. The impact governor of claim 1, wherein a pressure gauge is connected to the deflector-actuating solenoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120267433.9U CN214424622U (en) | 2021-02-01 | 2021-02-01 | Impact speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120267433.9U CN214424622U (en) | 2021-02-01 | 2021-02-01 | Impact speed regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214424622U true CN214424622U (en) | 2021-10-19 |
Family
ID=78069941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120267433.9U Active CN214424622U (en) | 2021-02-01 | 2021-02-01 | Impact speed regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214424622U (en) |
-
2021
- 2021-02-01 CN CN202120267433.9U patent/CN214424622U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110080934B (en) | Water turbine speed regulator with start-stop protection function | |
| CN107355263A (en) | A kind of small machine highback pressure control system of water pump | |
| CN214424622U (en) | Impact speed regulator | |
| CN103470441B (en) | The hydraulic pressure installation of a kind of water turbine governing and protective system | |
| CN209444655U (en) | It is a kind of for the hydraulic system with function of redundancy protection | |
| CN212428961U (en) | Emergency trip control mechanism of DEH system | |
| CN210239900U (en) | Hydraulic turbine speed regulator with start-stop protection function | |
| CN113309660B (en) | Intelligent sectional closing control system and method for speed regulator | |
| CN214424806U (en) | Speed regulation control hydraulic system | |
| CN108662245B (en) | Anti-jamming and anti-freezing control device and control method for electric regulating valve | |
| CN204716455U (en) | A kind of turbine-generator units speed regulator loss protecting system | |
| CN209100189U (en) | A kind of governor power down self-sustaining self-closing device | |
| CN214424797U (en) | Speed regulator mechanical hydraulic system | |
| CN212774984U (en) | Steam turbine electrohydraulic regulating system | |
| CN113109041B (en) | Verification mode improvement method for steam turbine side low-point drainage executing mechanism of thermal power plant | |
| CN217080577U (en) | Low-pressure Voith valve system with OPC function | |
| CN217501854U (en) | Hydraulic device with purely manual power-off self-closing speed regulation system | |
| CN109458292A (en) | A kind of governor power down self-sustaining self closing method | |
| CN210661489U (en) | Mechanical hydraulic control device of main distributing valve of super-huge type water turbine speed regulator | |
| CN201344090Y (en) | Special speed governor for impact type valve direct control hydraulic turbine set | |
| CN212867759U (en) | Small-size hydraulic turbine speed regulator shuts down interlocking control system | |
| CN109058036B (en) | S-shaped switching control method for servomotor locking device of hydroelectric generating set | |
| CN214465192U (en) | Hydraulic system for guide vane of water turbine | |
| CN100532831C (en) | Control head | |
| CN109488394A (en) | The control method that million nuclear steam turbine control system machine heaps are coordinated |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |