CN201498973U - Power failure protective device for emergency stop electromagnetic valve of governor of hydraulic turbine - Google Patents
Power failure protective device for emergency stop electromagnetic valve of governor of hydraulic turbine Download PDFInfo
- Publication number
- CN201498973U CN201498973U CN2009201982986U CN200920198298U CN201498973U CN 201498973 U CN201498973 U CN 201498973U CN 2009201982986 U CN2009201982986 U CN 2009201982986U CN 200920198298 U CN200920198298 U CN 200920198298U CN 201498973 U CN201498973 U CN 201498973U
- Authority
- CN
- China
- Prior art keywords
- power failure
- power supply
- electromagnetic valve
- normally closed
- charging capacitor
- 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 - Lifetime
Links
Landscapes
- Hydraulic Turbines (AREA)
Abstract
The utility model relates to a power failure protective device for emergency stop electromagnetic valve of hydraulic governor of hydraulic turbine. The power failure protective device for emergency stop electromagnetic valve of governor of hydraulic turbine comprises a power supply monitoring relay, an emergency stop electromagnetic valve, a charging capacitor, a rectifying diode and a current limiting resistor. The input end of the emergency stop electromagnetic valve is connected with the normally closed contact of the power supply monitoring relay in series, the charging capacitor is arranged on the peripheries of the emergency stop electromagnetic valve and the normally closed contact in parallel, the rectifying diode and the current limiting resistor are arranged between the public end of the normally closed contact and the charging capacitor and the live wire of a system power supply is series, the power supply monitoring relay and the circuit are connected with a power supply in parallel, the charging capacitor uses an electrolytic capacitor, the capacity of electrolytic capacitor is 660uf, the voltage resistance is 450V, and the current limiting resistor is 3.75 kilo ohm. The utility model has the advantages of simple and effective structure and convenient implementation.
Description
Technical field
The utility model relates to tightly the have a power failure loss protecting device of magnet valve of hydraulic turbine hydrodynamic governor.
Background technology
Present hydraulic turbine hydrodynamic governor (be as application number 200620109169.1 utility model patent) normally allows the charged action of tight power failure magnet valve when accident and emergency shutdown; utilize the hydraulic drive servomotor that stores in the nitrogen pot with the guide vanes of water turbine complete shut-down, to avoid hydraulic generator unit driving.But the also outage thereupon of speed regulator control power supply can't start tight power failure magnet valve under power network line has an accident situation about tripping, and causes closing the hydraulic turbine, and runaway accident takes place.The tight power failure magnet valve that also has is designed to normal charged, tight power failure magnet valve outage action during accident, but shortcoming be normal charged electromagnetically operated valve because charged for a long time, solenoid is easy to burn, and has reduced the useful life of electromagnetically operated valve, has reduced dependability.
Summary of the invention
Tight power failure magnet valve needs the problem of charged action when solving in the factory outage, and the purpose of this utility model is tightly the have a power failure loss protecting device of magnet valve of a kind of hydraulic turbine hydrodynamic governor, this device have simple in structure effectively, implement characteristics easily.
In order to realize above-mentioned purpose, the utility model has adopted following technical scheme:
Tightly the have a power failure loss protecting device of magnet valve of hydrogovernor, this device are by the power monitoring relay, tightly have a power failure magnet valve, charging capacitor, rectifier diode and current-limiting resistance constitutes; The normally closed contact of described tight power failure magnet valve input series connection power supply supervisory relay, described charging capacitor is arranged in parallel the periphery at tight power failure magnet valve and normally closed contact, described rectifier diode and current-limiting resistance series connection are arranged between the common port and system power supply live wire of normally closed contact and charging capacitor described power monitoring relay and above-mentioned circuit access in parallel power supply; Described charging capacitor is selected electrolytic capacitor for use, and the electrochemical capacitor capacity is 660uf, and withstand voltage is 450V, and current-limiting resistance is 3.75K Ω.
Under the situation of control power supply operate as normal, the charged action of described power monitoring relay, its normally closed output contact is disconnected, AC power is charged to described electric capacity through rectifier diode, when station service has a power failure, described power monitoring relay electric-loss, described electromagnetic relay normally closed contact closure, electric capacity is through the power input discharge of described power monitoring relay normally closed contact to tight power failure magnet valve, make the charged action of tight power failure magnet valve, so just can be by hydraulic means quick closedown guide vanes of water turbine under the situation of accident outage.The utlity model has simple in structure effectively, implement characteristics easily.
Description of drawings
Fig. 1 is an electrical block diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is made a detailed explanation.
Tightly the have a power failure loss protecting device of magnet valve T of hydrogovernor as shown in Figure 1, this device are by the power monitoring relay K, tightly have a power failure magnet valve T, charging capacitor C, rectifier diode D and current-limiting resistance R constitutes; The normally closed contact K ' of described tight power failure magnet valve T input series connection power supply supervisory relay K, described charging capacitor C is arranged in parallel the periphery at tight power failure magnet valve T and normally closed contact K ', described rectifier diode D and current-limiting resistance R series connection are arranged between the common port and the 220V of system power firestreak of normally closed contact K ' and charging capacitor C described power monitoring relay K and above-mentioned circuit access in parallel 220V power supply; Described charging capacitor C selects electrolytic capacitor for use, and the electrochemical capacitor capacity is 660uf, and withstand voltage is 450V, and current-limiting resistance R is 3.75K Ω.
Under the situation of control power supply operate as normal, the charged action of described power monitoring relay K, its normally closed output contact is disconnected, AC power is charged to described electric capacity through rectifier diode D, when station service has a power failure, described power monitoring relay K dead electricity, normally closed contact K ' closure of described power monitoring relay K D, electric capacity is through the power input discharge of described power monitoring relay K normally closed contact K ' to tight power failure magnet valve T, make the charged action of tight power failure magnet valve T, so just can be by hydraulic means quick closedown guide vanes of water turbine under the situation of accident outage.
Claims (1)
1. the hydrogovernor loss protecting device of magnet valve that tightly has a power failure is characterized in that: this device is by the power monitoring relay, tightly have a power failure magnet valve, charging capacitor, rectifier diode and current-limiting resistance constitutes; The normally closed contact of described tight power failure magnet valve input series connection power supply supervisory relay, described charging capacitor is arranged in parallel the periphery at tight power failure magnet valve and normally closed contact, described rectifier diode and current-limiting resistance series connection are arranged between the common port and system power supply live wire of normally closed contact and charging capacitor described power monitoring relay and above-mentioned circuit access in parallel power supply; Described charging capacitor is selected electrolytic capacitor for use, and the electrochemical capacitor capacity is 660uf, and withstand voltage is 450V, and current-limiting resistance is 3.75K Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201982986U CN201498973U (en) | 2009-10-01 | 2009-10-01 | Power failure protective device for emergency stop electromagnetic valve of governor of hydraulic turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201982986U CN201498973U (en) | 2009-10-01 | 2009-10-01 | Power failure protective device for emergency stop electromagnetic valve of governor of hydraulic turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201498973U true CN201498973U (en) | 2010-06-02 |
Family
ID=42442169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201982986U Expired - Lifetime CN201498973U (en) | 2009-10-01 | 2009-10-01 | Power failure protective device for emergency stop electromagnetic valve of governor of hydraulic turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201498973U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672244B (en) * | 2009-10-01 | 2011-08-03 | 王晓罡 | Power loss protecting device of fast-stopping electromagnetic valve of hydraulic turbine governor |
-
2009
- 2009-10-01 CN CN2009201982986U patent/CN201498973U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672244B (en) * | 2009-10-01 | 2011-08-03 | 王晓罡 | Power loss protecting device of fast-stopping electromagnetic valve of hydraulic turbine governor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105914868B (en) | Super capacitor energy-storage uninterruptible power supply and its method of supplying power to based on current transformer | |
| CN103227491B (en) | For the data acquisition of electric vehicle lithium battery group and energy balance control device and method | |
| CN204031043U (en) | There is the photovoltaic system of intelligent turn-off function | |
| CN104167980A (en) | Photovoltaic system with intelligent shut-off function | |
| CN101834464A (en) | Charging pile for electric vehicle | |
| CN203504285U (en) | UPS integrated power supply | |
| CN101764426A (en) | Protective device for on-line discharge capacity test of storage battery and testing method thereof | |
| CN101672244B (en) | Power loss protecting device of fast-stopping electromagnetic valve of hydraulic turbine governor | |
| CN203071637U (en) | DC power supply connection control apparatus | |
| CN104124751A (en) | Automatic power supply system circuit for emergency security safeguard power generation | |
| CN204758746U (en) | Do benefit to and judge that electricity adds circuit of electrothermal relay adhesion | |
| CN201498973U (en) | Power failure protective device for emergency stop electromagnetic valve of governor of hydraulic turbine | |
| CN103872754B (en) | Photovoltaic solar method for controlling power supply and system | |
| CN203206170U (en) | Medium-and-small sized hydroelectric generating set intelligent control system | |
| CN201639353U (en) | Safety device for testing discharge capacity of accumulator battery without off line | |
| CN208874350U (en) | A kind of standby power supply device and its marine tidal-current energy generator group of marine tidal-current energy generator group | |
| CN204179731U (en) | Support the distribution line on-line monitoring acquisition terminal of circuit automatic electricity getting | |
| CN105673289A (en) | Diesel generating set fast in starting, automatic in parallel operation or quit operation and stable in performance | |
| CN202957583U (en) | Switching power device with alternating current input over-voltage protection function | |
| CN204967410U (en) | Zero -power direct current UPS switched systems | |
| CN201893598U (en) | Automatic detection and control charging power supply equipment | |
| CN204481544U (en) | A kind of wireless charging device for transmission line on-line monitoring equipment | |
| CN204046263U (en) | A kind of emergency guarantee generating automatic power circuit system | |
| CN202840677U (en) | Excitation device for improving reliability of excitation system of pumped storage unit | |
| CN202455118U (en) | Monitoring device of storage battery group |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100602 Effective date of abandoning: 20091001 |