CN208763700U - A kind of Emergency Trip System of Steam Turbines - Google Patents
A kind of Emergency Trip System of Steam Turbines Download PDFInfo
- Publication number
- CN208763700U CN208763700U CN201821492708.3U CN201821492708U CN208763700U CN 208763700 U CN208763700 U CN 208763700U CN 201821492708 U CN201821492708 U CN 201821492708U CN 208763700 U CN208763700 U CN 208763700U
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- China
- Prior art keywords
- plc
- unit
- control cabinet
- steam turbines
- wireless transceiver
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- 230000000007 visual effect Effects 0.000 claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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- Control Of Turbines (AREA)
Abstract
The utility model belongs to thermal technics technical field, and in particular to a kind of Emergency Trip System of Steam Turbines.Including PLC control cabinet, ups power, data acquisition unit, executing agency, wireless remote control unit, combined aural and visual alarm and host computer unit, the ups power, data acquisition unit, executing agency, the alert device of acousto-optic and host computer unit are connect with PLC control cabinet, and double PLC are configured in the PLC control cabinet.This system can be switched to another and worked on using double PLC Redundant Controls when a PLC breaks down; it is powered using uninterruptible power supply; ensure that power supply power supply is not interrupted, host computer can remotely monitor this system operation data, and wireless remote control unit manual control can be shut down when urgent.
Description
Technical field
The utility model belongs to thermal technics technical field, and in particular to a kind of Emergency Trip System of Steam Turbines.
Background technique
Due to the continuous development of science and technology, the increasingly increase of electrical energy demands, the originals such as continuous expansion of single-machine capacity
Cause, Generator Set require have higher reliability and automatization level, and otherwise its accident will cause huge to power grid
Loss, therefore, in Large-scale machine set, steam turbine emergency trip protection system is very important.Turbine emergency trip system
The most important ring of steam turbine protection, it is the outlet of steam turbine electric tripping, operational safety, reliable in action whether direct shadow
Ring the safe operation for arriving steam turbine.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of Emergency Trip System of Steam Turbines, there is accident note
Recording function has long-range monitoring simultaneously using double PCL controller Redundant Controls, and the operation of steam turbine can be made safer.
The technical solution of the utility model is as follows:
A kind of Emergency Trip System of Steam Turbines, including PLC control cabinet, ups power, data acquisition unit, executing agency, sound
Light crossing-signal and host computer unit, the ups power, data acquisition unit, executing agency, combined aural and visual alarm and host computer unit
It is connect with PLC control cabinet, double PLC is configured in the PLC control cabinet.
Further, further include wireless remote control unit, the wireless remote control unit include remote controler, the first wireless transceiver and
Second wireless transceiver, the remote controler are connected with the first wireless transceiver, first wireless transceiver and the second wireless receipts
Device communication connection is sent out, second wireless transceiver is connect by CAN bus with double plc communications, the described second wireless receipts
Hair device is mounted in PLC control cabinet.
Double PLC are the PLC controller of dual processors, or are two sets of identical PLC controllers, the UPS electricity
Source, data acquisition unit, executing agency, combined aural and visual alarm, Turbine Safety monitoring unit and host computer unit respectively with two sets
The identical PLC controller connection.
The data acquisition unit includes current vortex sensor, velocity sensor, LVDT displacement sensor and temperature sensing
Device, the current vortex sensor are installed at turbine shaft axial thrust bearing, and the velocity sensor is mounted on turbine rotor
Place, the LVDT displacement sensor are installed at cylinder and valve, and temperature sensor is installed on engine bearing, generator unit stator
At winding and high pressure cylinder.
The executing agency includes tripping electromagnetic valve.
The host computer unit is located at office, control centre, including industrial personal computer, display and operation keyboard, the industry control
Machine is connect with display, operation keyboard respectively, is connect by network with PLC control cabinet.
Double PLC are serial using the S7 of Siemens.
The utility model has the following beneficial effects:
This system is worked at the same time using double PLC Redundant Controls, two-shipper, when a PLC breaks down, can be switched to another
One works on, and is powered using uninterruptible power supply, it is ensured that power supply power supply is not interrupted, positioned at the upper of office, control centre
Machine, can remotely monitor this system operation data, and wireless remote control unit manual control can be shut down when urgent.This system is realized
For the safe and economical operation of Large-scale machine set provide reliable guarantee.
Detailed description of the invention
The structural schematic diagram of Fig. 1 the utility model
Specific embodiment
Be described further below the technical solution of the utility model, but claimed range be not limited to it is described.
As shown in Figure 1, a kind of Emergency Trip System of Steam Turbines, including PLC control cabinet, ups power, data acquisition unit,
Executing agency, combined aural and visual alarm and host computer unit, ups power, data acquisition unit, executing agency, combined aural and visual alarm and on
Position machine unit is connect with PLC control cabinet, and double PLC are configured in PLC control cabinet.Double PLC Redundancy Designs are configured in PLC control cabinet can
To ensure the reliability of this system, all input and output of double PLC are binary channels, when a PLC breaks down, can be cut
It changes to another to work on, does not influence the operation of system.Ups power be can PLC control cabinet power supply may insure system power supply
Uninterruptedly.
This system further includes wireless remote control unit, and wireless remote control unit includes remote controler, the first wireless transceiver and second
Wireless transceiver, remote controler are connected with the first wireless transceiver, and the first wireless transceiver and the second wireless transceiver communicate to connect,
Second wireless transceiver is connect by CAN bus with double plc communications, and second wireless transceiver is mounted in PLC control cabinet.
Wireless remote control unit sends control command for PLC controller of the staff into cabinet and receives the fortune that PLC controller uploads
Row status data and warning message.
Data acquisition unit includes current vortex sensor, velocity sensor, LVDT displacement sensor, current vortex sensor peace
At turbine shaft axial thrust bearing, whether the horizontal clearance for detecting quiet dynamic part is kept in the reasonable scope；Speed
Sensor is mounted at turbine rotor, and whether the revolving speed for detecting steam turbine exceeds the speed limit；LVDT displacement sensor is installed on gas
At cylinder and valve, for detecting the degrees of expansion of cylinder and the aperture of valve；Temperature sensor is installed on engine bearing, power generation
At machine stator winding and high pressure cylinder, temperature, the temperature of generator unit stator winding and high pressure cylinder for detecting engine bearing are arranged
Temperature degree.When the collected a certain data of data acquisition unit are more than the alarming value of the setting of PLC control cabinet, PLC control cabinet control
Combined aural and visual alarm processed issues alarm, when the collected a certain data of data acquisition unit are more than the limit of the setting of PLC control cabinet
Value, PLC control cabinet control tripping electromagnetic valve tripping, and halt turbines avoid that serious consequence occurs.
Host computer unit includes industrial personal computer, display and operation keyboard, and industrial personal computer connects with display, operation keyboard respectively
It connects, is connect by network with PLC control cabinet.Host computer is located at office, control centre, can show, to store PLC control cabinet defeated
Data out.
Double PLC of the utility model can be the PLC controller of dual processors, or be two sets of identical PLC controllers,
When for two sets of identical PLC controllers, ups power, data acquisition unit, executing agency, combined aural and visual alarm and upper
Machine unit is connect with two sets of identical PLC controllers respectively.Double PLC can be used when for the PLC controller of dual processors
The S7 series of Siemens.
The above is only the preferred embodiment of this patent, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the art of this patent principle, several improvement and replacement can also be made, these are improved and replacement
Also it should be regarded as the protection scope of this patent.
Claims (7)
1. a kind of Emergency Trip System of Steam Turbines, which is characterized in that including PLC control cabinet, ups power, data acquisition unit, hold
Row mechanism, combined aural and visual alarm and host computer unit, the ups power, data acquisition unit, executing agency, combined aural and visual alarm and
Host computer unit is connect with PLC control cabinet, and double PLC are configured in the PLC control cabinet.
2. Emergency Trip System of Steam Turbines as described in claim 1, which is characterized in that it further include wireless remote control unit, it is described
Wireless remote control unit includes remote controler, the first wireless transceiver and the second wireless transceiver, is connected with first in the remote controler
Wireless transceiver, first wireless transceiver and the second wireless transceiver communicate to connect, and second wireless transceiver passes through
CAN bus is connect with double plc communications, and second wireless transceiver is mounted in PLC control cabinet.
3. Emergency Trip System of Steam Turbines as described in claim 1, which is characterized in that double PLC are that the PLC of dual processors is controlled
Device processed, or be two sets of identical PLC controllers, the ups power, data acquisition unit, executing agency, sound-light alarm
Device, Turbine Safety monitoring unit and host computer unit are connect with two sets of identical PLC controllers respectively.
4. Emergency Trip System of Steam Turbines as described in claim 1, which is characterized in that the data acquisition unit includes electric whirlpool
Flow sensor, velocity sensor, LVDT displacement sensor and temperature sensor, the current vortex sensor are installed on turbine shaft
At axial thrust bearing, the velocity sensor is mounted at turbine rotor, the LVDT displacement sensor be installed on cylinder and
At valve, temperature sensor is installed at engine bearing, generator unit stator winding and high pressure cylinder.
5. Emergency Trip System of Steam Turbines as described in claim 1, which is characterized in that the executing agency includes tripping electromagnetism
Valve.
6. Emergency Trip System of Steam Turbines as described in claim 1, which is characterized in that the host computer unit is located in control
Heart office, including industrial personal computer, display and operation keyboard, the industrial personal computer is connect with display, operation keyboard respectively, described
Industrial personal computer is connect by network with PLC control cabinet.
7. Emergency Trip System of Steam Turbines as described in claim 1, which is characterized in that double PLC use the S7 of Siemens
Series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821492708.3U CN208763700U (en) | 2018-09-12 | 2018-09-12 | A kind of Emergency Trip System of Steam Turbines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821492708.3U CN208763700U (en) | 2018-09-12 | 2018-09-12 | A kind of Emergency Trip System of Steam Turbines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208763700U true CN208763700U (en) | 2019-04-19 |
Family
ID=66134738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821492708.3U Expired - Fee Related CN208763700U (en) | 2018-09-12 | 2018-09-12 | A kind of Emergency Trip System of Steam Turbines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208763700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111708316A (en) * | 2020-06-17 | 2020-09-25 | 浙江省机电设计研究院有限公司 | PLC industrial automation control system |
-
2018
- 2018-09-12 CN CN201821492708.3U patent/CN208763700U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111708316A (en) * | 2020-06-17 | 2020-09-25 | 浙江省机电设计研究院有限公司 | PLC industrial automation control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190419 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |