CN202545105U - Pneumatic control device for unit of hydropower station - Google Patents
Pneumatic control device for unit of hydropower station Download PDFInfo
- Publication number
- CN202545105U CN202545105U CN2012202088827U CN201220208882U CN202545105U CN 202545105 U CN202545105 U CN 202545105U CN 2012202088827 U CN2012202088827 U CN 2012202088827U CN 201220208882 U CN201220208882 U CN 201220208882U CN 202545105 U CN202545105 U CN 202545105U
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- CN
- China
- Prior art keywords
- unit
- solenoid valve
- control device
- turn
- rotating speed
- 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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- 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
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a pneumatic control device for a unit of a hydropower station. The pneumatic control device comprises a rotating speed signal acquisition device and an electromagnetic valve, wherein the rotating speed signal acquisition device is connected with the unit; the electromagnetic valve is arranged on a unit air supply main pipe; the rotating speed signal acquisition device is connected with a programmable logic controller (PLC) control system; the PLC control system is connected to two ends of the electromagnetic valve and used for controlling the turn-on and turn-off of the electromagnetic valve to control the turn-on and turn-off of the unit air supply main pipe. The pneumatic control device has the advantages that the actual state of the unit is judged according to the rotating speed of the unit, the turn-on and turn-off of a unit air source are controlled by using a rotating speed signal, and miscarrying of the braking equipment of the unit during operation of the unit is prevented.
Description
Technical field
The utility model relates to a kind of Hydropower Plant and uses the gas control device.
Background technique
At present water power plant water wheels unit air supply header is only installed the hand valve, the no matter whether operation of unit, and the hand valve keeps often opening.When unit only relies on during at run mode solenoid valve in the unit braking device to switch air lock device, vermiculator, shroud device are prevented to drop into protection; Because the solenoid valve switch function in the unit braking device is complicated, electric loop is complicated, is prone to cause the electrical control fault; The solenoid valve action is not in place; Cause that pipeline collaborates, air lock jack-up or vermiculator input or shroud input cause air lock and wriggling, shroud device to damage.
The model utility content
The technical problem that the utility model will solve is in order to provide a kind of Hydropower Plant to use the gas control device; It judges the virtual condition of unit through generating unit speed; Use tach signal to control opening and closing of unit source of the gas, prevent during the unit operation, miscarrying unit braking equipment.
The purpose of the utility model is achieved in that
A kind of Hydropower Plant is used the gas control device; It comprises the tach signal collecting device that is connected with unit and is arranged on the solenoid valve on the unit air supply header; The tach signal collecting device connects the PLC control system; The PLC control system is connected the solenoid valve two ends, and PLC control system is used for the control electromagnetic valve break-make, thus the break-make of control unit air supply header.
Above-mentioned solenoid valve is provided with baffler, the volume when baffler is used to reduce solenoid valve conduction.
The make-and-break signal of above-mentioned solenoid valve can send out that pulse makes through remote monitoring, the manual pulse order of terrain or PLC send out the pulse order.
Technique effect below the utility model has been obtained:
1, the utility model is judged the virtual condition of unit through generating unit speed, uses tach signal to control opening and closing of unit source of the gas, prevents during the unit operation miscarrying unit braking equipment;
2, far control, closely control the input excision that button reaches control unit source of the gas through adjustment speed setting value and installation, satisfy the daily needs of safeguarding.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the implementation schematic representation of solenoid valve conduction;
The implementation schematic representation that Fig. 3 breaks off for closed electromagnetic valve.
Embodiment
Like Fig. 1; A kind of Hydropower Plant is used the gas control device; It comprises the tach signal collecting device 1 that is connected with unit and is arranged on the solenoid valve 2 on the unit air supply header 5, tach signal collecting device connection PLC control system 4, and the PLC control system is connected the solenoid valve two ends; PLC control system is used for the control electromagnetic valve break-make, thus the break-make of control unit air supply header.Described solenoid valve is provided with baffler 3, the volume when baffler is used to reduce solenoid valve conduction.
Like Fig. 2-3, compare by tach signal actual value and setting value, if the tach signal actual value setting value, PLC sends out the pulse order to an end of solenoid valve, makes the solenoid valve action cut off air supply header.If < setting value, PLC sends out the pulse order to the other end of solenoid valve, makes solenoid valve action conducting air supply header the tach signal actual value.The conducting of solenoid valve or close disconnection and can send out all that a pulse make, the manual pulse of terrain makes, PLC sends out pulse makes three kinds of modes realize through monitoring.
The utility model prevents that through thorough cut-out unit air feed source of the gas pipeline from collaborating, and causes air lock and wriggling, shroud device to damage; The running state of unit is represented through rotating speed, and can be connected, turn-off unit air feed source of the gas arbitrarily in this setting value through the different rotating speed setting value is set; According to the needs of safeguarding, can manually control the switch of source of the gas.
Claims (3)
1. a Hydropower Plant is used the gas control device; It is characterized in that: it comprises the tach signal collecting device (1) that is connected with unit and is arranged on the solenoid valve (2) on the unit air supply header (5); The tach signal collecting device connects PLC control system (4); The PLC control system is connected the solenoid valve two ends, and PLC control system is used for the control electromagnetic valve break-make, thus the break-make of control unit air supply header.
2. Hydropower Plant according to claim 1 is used the gas control device, it is characterized in that: described solenoid valve is provided with baffler (3), the volume when baffler is used to reduce solenoid valve conduction.
3. Hydropower Plant according to claim 1 and 2 is used the gas control device, it is characterized in that: the make-and-break signal of described solenoid valve can send out that pulse makes through remote monitoring, the manual pulse order of terrain or PLC send out the pulse order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202088827U CN202545105U (en) | 2012-05-11 | 2012-05-11 | Pneumatic control device for unit of hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202088827U CN202545105U (en) | 2012-05-11 | 2012-05-11 | Pneumatic control device for unit of hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545105U true CN202545105U (en) | 2012-11-21 |
Family
ID=47165749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202088827U Expired - Fee Related CN202545105U (en) | 2012-05-11 | 2012-05-11 | Pneumatic control device for unit of hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976044A (en) * | 2015-07-03 | 2015-10-14 | 李俊杰 | Air pressure full-automatic control small hydro-electric generating set system |
-
2012
- 2012-05-11 CN CN2012202088827U patent/CN202545105U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976044A (en) * | 2015-07-03 | 2015-10-14 | 李俊杰 | Air pressure full-automatic control small hydro-electric generating set 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: 20121121 Termination date: 20180511 |