CN208350956U - On-Line Monitor Device based on F grades of gas-steam combined unit generation machine rotors - Google Patents
On-Line Monitor Device based on F grades of gas-steam combined unit generation machine rotors Download PDFInfo
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- CN208350956U CN208350956U CN201820777633.7U CN201820777633U CN208350956U CN 208350956 U CN208350956 U CN 208350956U CN 201820777633 U CN201820777633 U CN 201820777633U CN 208350956 U CN208350956 U CN 208350956U
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- position sensor
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Abstract
The utility model relates to the on-Line Monitor Devices based on F grades of gas-steam combined unit generation machine rotors, including the position sensor being electrically connected with generator amature, it is characterized by: the signal output end of the position sensor is connected with voltage transmitter, the real-time monitoring structure of generator amature is formed；The voltage transmitter is equipped with a signal input part, two signal output ends, the connection of the signal output end of the signal input part and position sensor, control signal input, the control signal input of two connecting fault oscillographs of signal output end of one of signal output end connection DCS system；The fault wave recording device is used for the data information of position recording sensor in the process of running；The DCS system draws the waveform picture and text of position sensor signal for monitoring screen；Form figure, literary formula monitors structure on-line.Have the characteristics that real-time monitoring position sensor, prevent startup separator.
Description
Technical field
The utility model relates to a kind of on-Line Monitor Devices based on F grades of gas-steam combined unit generation machine rotors, fit
Start for F grades of gas-steam combined unit static frequency changes.Belong to power generation industries and ancillary equipment technology.
Background technique
F grades of gas-steam combined units need to be dragged to unit centainly using static frequency change device in unit starting
After revolving speed, combustion engine can independent raising speed, static frequency change device needs generator rotor position signal as quiet in the process of running
The important control signal of state converter plant, once position sensor signal permanent fault or instantaneous loss, will result in starting and lose
It loses.
Currently, F grades of gas-steam combined unit static frequency change devices cannot supervise in real time position sensor signal
It surveys, when position sensor signal failure, difficulty and discovery and positioning, are unfavorable for finding defect and promptly and accurately handling failure in advance.
Therefore existing F grades of gas-steam combined unit static frequency change device has the following disadvantages: 1, does not have position sensor signal
The function of monitoring, operation monitoring personnel can not in the distance and whether be monitored in situ position sensor signal normal.When position passes
Starting unit when sensor signal failure will cause starting failure；2, in start-up course, position sensor signal failure causes to start
After failure, the case where can not obtaining abort situation sensor signal, is not easy to the failure of analysis unit starting and eliminates failure in time.
Utility model content
The purpose of this utility model is the F grade gas-steam combined unit static frequency change device in order to solve the prior art
There is technical issues that position sensor signal cannot be carried out, provides a kind of based on F grades of gas-steam combineds
The on-Line Monitor Device of unit generation machine rotor.With real-time monitoring position sensor signal, position sensor work is grasped in real time
Make state, prevent because position sensor failure cause startup separator, convenient for analysis unit starting failure cause and in time eliminate therefore
Substantive distinguishing features outstanding and the significant technological progresses such as barrier.
The purpose of this utility model can be achieved through the following technical solutions:
It is electrically connected based on the on-Line Monitor Device of F grades of gas-steam combined unit generation machine rotors, including with generator amature
The position sensor connect, design feature are: the signal output end of the position sensor is connected with voltage transmitter, to incite somebody to action
The real time position of generator amature is sent to voltage transmitter, forms the real-time monitoring structure of generator amature；The voltage becomes
Device is sent to be equipped with a signal input part, two signal output ends, the signal output end company of the signal input part and position sensor
It connects, one of the signal output end connects two connecting fault oscillographs of the control signal input of DCS system, signal output end
Control signal input；The fault oscillograph is used for the data information of position recording sensor in the process of running；Described
DCS system draws the waveform picture and text of position sensor signal for monitoring screen；Form F grades of figure, literary formula gas-steam combined machines
The on-line monitoring structure of group generator amature.
The purpose of this utility model can also be achieved through the following technical solutions:
Further, the power supply includes 6kV working power, transformer, rectifier and inverter, 6kV working power
Output voltage connects the input terminal of rectifier after transformer is changed into 3.8kV voltage, and the output end of rectifier passes through reactance
Device connects the input terminal of inverter, forms AC-DC converting circuit structure.The power supply is passed through external power supply by 6kV working power
The voltage that transformer is changed into 3.8kV enters rectifier, enters inverter by reactor correction waveform after rectifier rectification,
Constant three-phase alternating voltage is become into variable DC-voltage supply to voltage transmitter.
Further, the power input of the voltage transmitter is connected by the power circuit of air switch with power supply.
Further, it is equipped in the signal input part connection of the signal output end of position sensor and voltage transmitter
Signal-controlled switch, the Signal-controlled switch are air switch.
Further, the voltage transmitter is made of the high resistant voltage transmitter of quick response.
Further, the rectifier is controlled controllable silicon rectifying bridge by six pulse wave of three-phase entirely and is constituted.
Further, the inverter is controlled controllable silicon rectifying bridge by six pulse wave of three-phase entirely and is constituted.
Further, the position sensor be F grades of gas-steam combined unit static frequency change devices in the process of running
Motor rotor position signal transducer, have three-phase i.e. A phase, B phase and C phase, spatially mutual deviation hexagonal angle.
The utility model has following substantive distinguishing features outstanding and significant technological progress:
1, the utility model includes the position sensor being electrically connected with generator amature, and the signal of the position sensor is defeated
Outlet is connected with voltage transmitter, the real time position of generator amature is sent to voltage transmitter, forms generator amature
Real-time monitoring structure；The voltage transmitter be equipped with a signal input part, two signal output ends, the signal input part with
The signal output end of position sensor connects, and one of the signal output end connects the control signal input of DCS system, signal
The control signal input of two connecting fault oscillographs of output end；The fault oscillograph is being transported for position recording sensor
Data information during row；The DCS system draws the waveform picture and text of position sensor signal for monitoring screen；It is formed
The on-line monitoring structure of F grades of figure, literary formula gas-steam combined unit generation machine rotors；Therefore, it is able to solve the F of the prior art
The technical issues of grade gas-steam combined unit static frequency change device cannot carry out real-time monitoring to position sensor signal, tool
Caused by having real-time monitoring position sensor signal, grasping position sensor working condition in real time, prevent because of position sensor failure
Startup separator, eliminate convenient for analysis unit starting failure cause and in time the substantive distinguishing features outstanding such as failure and significant technology into
Step.
2, the position sensor signal of the utility model carry out on-line monitoring and recording, therefore can before unit starting and
Shi Faxian signal fault, avoids unit starting from failing；And can in starting, when position sensor signal failure, quickly positioning therefore
Barrier eliminates defect.
Detailed description of the invention
Fig. 1 is the structural block diagram of the utility model.
The structural block diagram of Fig. 2 the utility model specific embodiment.
Specific embodiment
Below in conjunction with attached drawing, the utility model is described in further detail.
Specific embodiment 1:
Referring to Fig.1, this specific embodiment 1 includes the position sensor 6 being electrically connected with generator amature, the position sensing
The signal output end of device 6 is connected with voltage transmitter 3, the real time position of generator amature is sent to voltage transmitter 3, shape
At the real-time monitoring structure of generator amature；The voltage transmitter 3 is equipped with a signal input part, two signal output ends,
The signal input part is connect with the signal output end of position sensor 6, and one of the signal output end connects the control of DCS system 4
Signal input part, signal output end two connecting fault oscillographs 5 control signal input；The fault oscillograph 5 is used for
The data information of position recording sensor 6 in the process of running；The DCS system 4 draws position sensing for monitoring screen
The waveform picture and text of 6 signal of device；Form the on-line monitoring structure of F grades of figure, literary formula gas-steam combined unit generation machine rotors.
In the present embodiment:
The position sensor 6 turns for the motor of F grades of gas-steam combined unit static frequency change devices in the process of running
Sub- position signal sensor has three-phase i.e. A phase, B phase and C phase, spatially mutual deviation hexagonal angle.
The power input of the voltage transmitter 3 is connected by the power circuit of air switch 1 with power supply 7.
Signal control is equipped in the signal output end of position sensor 6 and the signal input part connection of voltage transmitter 3
Switch 2 is made, which is air switch.
The voltage transmitter 3 is made of the high resistant voltage transmitter of quick response.
The power supply 7 includes 6kV working power, transformer, rectifier and inverter, the output voltage of 6kV working power
The input terminal of rectifier is connected after transformer is changed into 3.8kV voltage, the output end of rectifier connects inverse by reactor
Become the input terminal of device, forms AC-DC converting circuit structure.External power supply is passed through transformer by 6kV working power by the power supply 7
The voltage for being changed into 3.8kV enters rectifier, enters inverter by reactor correction waveform after rectifier rectification, will be constant
Three-phase alternating voltage become variable DC-voltage supply to voltage transmitter 3.
The rectifier is controlled controllable silicon rectifying bridge by six pulse wave of three-phase entirely and is constituted.The inverter is controlled entirely by six pulse wave of three-phase
Controllable silicon rectifying bridge is constituted.
The fault oscillograph 5 is for automatically, accurately the data of position recording sensor 6 in the process of running to be believed
Breath；The DCS system 4 draws the waveform picture and text of 6 signal of position sensor for monitoring screen, facilitates operator's starter motor
Whether monitoring signal is normal before group.
Air switch 1 can use the air switch of routine techniques, and Signal-controlled switch 2 can use the sky of routine techniques
Air cock, voltage transmitter 3 can use the high resistant voltage transmitter of the quick response with several input/output end ports, DCS
System 4 can use the DCS system of routine techniques, and fault oscillograph 5 can use the fault oscillograph of routine techniques, and position passes
Sensor 6 can use the pressure signal sensor of routine techniques.
The utility model is in application, by increasing single input, dual output (i.e. a signal input part, two signal outputs
End) quick response voltage signal transmitter, by 0V-12V jump position sensor signal be converted into 4-20mA electric current believe
Number, output is sent to DCS system all the way, by converting intuitive display position sensor signal waveform, operation monitoring personnel is facilitated to exist
Check whether position sensor signal is normal before starting unit；The another output of 4-20mA is sent to fault oscillograph, is utilized
Sample rate high characteristic when fault oscillograph failure, the waveform of accurate recording position sensor signal in failure, to carry out
It accident analysis and is further processed.
In order to improve the application performance of this specific embodiment, increase logic judgment in DCS system, when in position sensor 6
When abnormal signal, alarm is issued, prompts operation monitoring personnel note that the sample frequency due to DCS system 4 limits, this function is only
It works when starting revolving speed is lower.
The working principle of this specific embodiment is as follows:
As shown in Fig. 2, the working power of on-Line Monitor Device is derived from 6kV auxiliary bus bar, 6kV working power becomes by input
The voltage that depressor becomes 3.8kV enters rectifier, and rectifier controls controllable silicon rectifying bridge using six pulse wave of three-phase entirely, by constant three
Phase alternating current buckling is at variable DC voltage, by reactor correction waveform after rectifier rectification, into inverter, inverter
And controllable silicon rectifying bridge is controlled using six pulse wave of three-phase entirely, constant three-phase alternating voltage is become into variable DC voltage, is led to
Adjustment trigger delay angle is crossed, one value appropriate of DC current is made.Inverter is according to the position being mounted on alternator shaft
The trigger signal that the generator rotor position that sensor 6 detects provides successively realizes commutation.Position sensor 6 directly with power generation
Machine rotor axis is connected, and inverter constantly repeats to convert and export three-phase alternating current, the three-phase alternation AC power source of this Frequency Adjustable
It is applied on the stator of generator, after the three-phase alternating-current supply of this Variable Amplitude and Frequency is supplied to generator, it can be made
Gradually accelerate to egulation rotating speed.
Since position sensor 6 is electric by F grades of gas-steam combined unit rotors with F grades of gas-steam combined unit rotors
Connection makes the signal of position sensor 6 pass through Signal-controlled switch 2 (i.e. air switch) and is connected to the high resistant voltage of quick response
The input terminal of transmitter 3；When the present embodiment selects the voltage transmitter 3 of quick response mainly to consider generator high revolving speed, together
The signal of the position sensor 6 of sample frequency variation distortionless can obtain, and high resistant voltage transmitter 3 mainly considers rotor position
Set sensor device carrying load ability.The two-way output branch of the voltage transmitter 3 send to DCS system 4 and fault oscillograph
5, using output 3 signal of DCS system, the waveform of the signal of position sensor is drawn in DCS monitoring screen, operator is facilitated to open
Monitor whether signal is normal before motivation group.Increase following decision logic in DCS simultaneously: when high level is between 11.5V-12.5V
When be judged as normal, be when low level is between 6.5V-7.5V it is normal, level issues alarm, level not in above-mentioned period
Alarm is not issued when low and high level jumps.Utilize the signal of output fault oscillograph 5, when failure chaser, failure wave-recording
6 signal condition of position sensor when device 5 searches chaser automatically, greatly facilitates quick fault point, so that processing lacks in time
It falls into, is again started up unit as early as possible.
The present embodiment by increase single input, dual output quick response voltage signal transmitter, all the way output send to
DCS system facilitates operation monitoring personnel to check position before starting unit by converting intuitive display position sensor signal waveform
Whether normal set sensor signal；Another output is sent to fault oscillograph, high using sample rate when fault oscillograph failure
Characteristic, the waveform of accurate recording position sensor signal in failure, to carry out accident analysis, realization is effectively and rapidly handled
Failure.
The present embodiment prepares 6 signal of real time on-line monitoring position sensor in starting and start-up course in unit, passes through prison
6 signal of position sensor is surveyed, finds its exception and failure in time, and can quick fault point in failure；The DCS system
4 realize 6 abnormal signal alarm function of position sensor by logic judgment；It is sent to by the way that 6 signal of position sensor will be monitored
Fault oscillograph 5, when unit starting failure occurs, 6 signal of position sensor recorded by fault oscillograph 5 judges position
6 signal of sensor whether failure and which phase position sensor signal failure.
The utility model is that applicant sums up next technological achievement by the production practices of many years.Applicant has practical life
Produce practice have shown that, with F grade gas-steam combined unit static frequency change devices generator position sensor probe (including spy
Head arrives signal adapter coaxial cable) performance change or damage the appearance of problem, before due to position sensor inaction interval and
Phenomenon of the failure there are problems that causing unnecessary chaser feelings due to position sensor signal in addition to regularly replacing related component
Condition has used the position sensor described in the utility model based on F grades of gas-steam combined unit static frequency change devices online
, can be whether carry out observing after selection generator corresponding 6 signal of generator position sensor every time normal, just after monitoring device
Chang Houfa opens machine order, carries out inspection processing at once if abnormal,.Periodically to F grades of gas-steam combined unit static frequency change devices
The position sensor signal of each unit of position sensor signal on-line monitoring system is detected, and with former detection parameters into
Row comparison, the timely analysis reason and adjustment that discovery deviation increases.Therefore, it is able to solve the F grade fuel gas-steam connection of the prior art
The technical issues of cannot carrying out real-time monitoring to position sensor signal of unit static frequency change device is closed, there is real-time monitoring position
Set sensor signal, in real time grasp position sensor, prevent because of position sensor failure caused by startup separator, convenient for analysis unit
Starting failure and in time substantive distinguishing features outstanding and the significant technological progress such as elimination failure.
Claims (8)
1. being electrically connected based on the on-Line Monitor Device of F grades of gas-steam combined unit generation machine rotors, including with generator amature
Position sensor (6), it is characterised in that: the signal output end of the position sensor (6) be connected with voltage transmitter (3),
The real time position of generator amature is sent to voltage transmitter (3), the real-time monitoring structure of generator amature is formed；It is described
Voltage transmitter (3) is equipped with a signal input part, two signal output ends, the signal input part and position sensor (6)
Signal output end connection, one of the signal output end connect the control signal input of DCS system (4), signal output end two
The control signal input of connecting fault oscillograph (5)；The fault oscillograph (5) is being transported for position recording sensor (6)
Data information during row；The DCS system (4) draws the waveform diagram of position sensor (6) signal for monitoring screen
Text；Form the on-line monitoring structure of F grades of figure, literary formula gas-steam combined unit generation machine rotors.
2. the on-Line Monitor Device according to claim 1 based on F grades of gas-steam combined unit generation machine rotors,
Be characterized in that: the power input of the voltage transmitter (3) is connected by the power circuit of air switch (1) with power supply (7).
3. the on-Line Monitor Device according to claim 2 based on F grades of gas-steam combined unit generation machine rotors,
Be characterized in that: the power supply (7) includes 6kV working power, transformer, rectifier and inverter, the output electricity of 6kV working power
The input terminal that rectifier is connected after transformer is changed into 3.8kV voltage is pressed, the output end of rectifier is connected by reactor
The input terminal of inverter forms AC-DC converting circuit structure；External power supply is passed through transformation by 6kV working power by the power supply (7)
The voltage that device is changed into 3.8kV enters rectifier, enters inverter by reactor correction waveform after rectifier rectification, will be permanent
The DC-voltage supply that fixed three-phase alternating voltage becomes variable gives voltage transmitter (3).
4. the on-Line Monitor Device according to claim 1 or 2 based on F grades of gas-steam combined unit generation machine rotors,
It is characterized by: being equipped in the signal input part connection of the signal output end and voltage transmitter (3) of position sensor (6)
Signal-controlled switch (2), the Signal-controlled switch (2) are air switch.
5. the on-Line Monitor Device according to claim 1 or 2 based on F grades of gas-steam combined unit generation machine rotors,
It is characterized by: the voltage transmitter (3) is made of the high resistant voltage transmitter of quick response.
6. the on-Line Monitor Device according to claim 3 based on F grades of gas-steam combined unit generation machine rotors,
Be characterized in that: the rectifier is controlled controllable silicon rectifying bridge by six pulse wave of three-phase entirely and is constituted.
7. the on-Line Monitor Device according to claim 3 based on F grades of gas-steam combined unit generation machine rotors,
Be characterized in that: the inverter is controlled controllable silicon rectifying bridge by six pulse wave of three-phase entirely and is constituted.
8. the on-Line Monitor Device according to claim 1 or 2 based on F grades of gas-steam combined unit generation machine rotors,
It is characterized by: the position sensor (6) be F grades of gas-steam combined unit static frequency change devices in the process of running
Motor rotor position signal transducer has three-phase i.e. A phase, B phase and C phase, spatially mutual deviation hexagonal angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820777633.7U CN208350956U (en) | 2018-05-24 | 2018-05-24 | On-Line Monitor Device based on F grades of gas-steam combined unit generation machine rotors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820777633.7U CN208350956U (en) | 2018-05-24 | 2018-05-24 | On-Line Monitor Device based on F grades of gas-steam combined unit generation machine rotors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208350956U true CN208350956U (en) | 2019-01-08 |
Family
ID=64890564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820777633.7U Expired - Fee Related CN208350956U (en) | 2018-05-24 | 2018-05-24 | On-Line Monitor Device based on F grades of gas-steam combined unit generation machine rotors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208350956U (en) |
-
2018
- 2018-05-24 CN CN201820777633.7U patent/CN208350956U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190108 Termination date: 20190524 |