CN209067445U - A kind of novel medium voltage air compressor intelligent control system of hydropower station based on fault diagnosis - Google Patents
A kind of novel medium voltage air compressor intelligent control system of hydropower station based on fault diagnosis Download PDFInfo
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- CN209067445U CN209067445U CN201821842282.XU CN201821842282U CN209067445U CN 209067445 U CN209067445 U CN 209067445U CN 201821842282 U CN201821842282 U CN 201821842282U CN 209067445 U CN209067445 U CN 209067445U
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Abstract
A kind of novel medium voltage air compressor intelligent control system of hydropower station based on fault diagnosis provided by the utility model, comprising: monitoring center, middle pressure air compressor machine intelligent controlling device, display, fault diagnosis module, air compressor motor group, gas tank blowoff electromagnetic valve, gas tank pressure transmitter and gas tank pressure switch；Fault diagnosis module includes vibrating sensor group, infrared sensor group, current sensor group and voltage sensor group；Practicability is low caused by the utility model solves the problems, such as easy break-down of the existing technology, not convenient for safeguarding and structure is complicated, is unable to monitor failure generation needs a large amount of manpowers to carry out investigation maintenance and is unable to the operation conditions and query history operation data of real-time display system.
Description
Technical field
The utility model belongs to power station technical field, and in particular to presses in a kind of novel power station based on fault diagnosis
Air compressor intelligent control system.
Background technique
Control system for medium-pressure air compressor of hydropower station is the important component of power station ancillary equipment, it is therefore an objective to be power station
Governor oil pressure device provides pressure gas source, guarantees that the pressure of governor pressure oil, normal operation are to guarantee power station governor
Normal operation or even the hydraulic turbine and generator operate normally the precondition of power generation, extremely important in water power station control system.
The prior art has the following problems:
(1) currently, based on traditional conventional relays control, three element electric machines control technology (breaker, contactor, heat
Relay), unity logic processing weak signal testing technology control system, easy break-down, not convenient for safeguarding and structure is complicated,
Cause practicability low；
(2) system of the prior art is unable to monitor the generation of failure, endangers the safety of staff, when an error occurs,
A large amount of manpowers are needed to carry out investigation maintenance；
(3) existing system needs to monitor in real time the operation conditions in patrol power station, and human resources investment is big, is unsatisfactory for current
The few people on duty in power station, unattended development needs, while cannot with full factory's monitoring system realize Large Volume Data hand over
Change, human-computer dialogue it is single, be unable to the operation conditions and query history operation data of real-time display system.
Utility model content
For above-mentioned deficiency in the prior art, a kind of save the cost investment provided by the utility model, practicability are high, real
When property is good and the good novel medium voltage air compressor intelligent control system of hydropower station based on fault diagnosis of timeliness, existing for solving
There is easy break-down existing for technology, practicability is low caused by not convenient for safeguarding and structure is complicated, is unable to monitor failure generation, need
The problem of wanting a large amount of manpowers to carry out investigation maintenance and be unable to the operation conditions and query history operation data of real-time display system.
In order to achieve the above object of the invention, the technical solution adopted in the utility model are as follows:
A kind of novel medium voltage air compressor intelligent control system of hydropower station based on fault diagnosis, comprising:
Monitoring center, middle pressure air compressor machine intelligent controlling device, display, fault diagnosis module, air compressor motor group, gas tank
Blowoff electromagnetic valve, gas tank pressure transmitter and gas tank pressure switch；
Fault diagnosis module includes vibrating sensor group, infrared sensor group, current sensor group and voltage sensor
Device group；Vibrating sensor group and infrared sensor group are correspondingly arranged at pump motor group, and its signal output end and middle pressure
The signal input part of air compressor machine intelligent controlling device communicates to connect；The corresponding outlet with each pump motor group of current sensor group
End is arranged in series, and voltage sensor group correspondence is arranged in parallel with each pump motor group, current sensor group and voltage sensor
The signal input part of the signal output end of group and middle pressure air compressor machine intelligent controlling device communicates to connect；
The signal of display, gas tank pressure transmitter and gas tank pressure switch with middle pressure air compressor machine intelligent controlling device
The signal of input terminal communication connection, air compressor motor group and gas tank blowoff electromagnetic valve with middle pressure air compressor machine intelligent controlling device
Output end communication connection, monitoring center and middle pressure air compressor machine intelligent controlling device communicate to connect.
Further, monitoring center includes monitor terminal and server, monitor terminal respectively with server and middle pressure pneumatics
The communication connection of machine intelligent controlling device.
Further, be provided with programmable logic controller (PLC) in middle pressure air compressor machine intelligent controlling device, respectively with it is programmable
Air compressor motor group major loop, the gas tank blowoff electromagnetic valve circuit, controlling power circuit, PLC analog quantity of logic controller connection
Input circuit module, PLC switching value input circuit module, PLC switching value output circuit module, power transmission road in hard contact switch amount
And display circuit；Power transmission road and display circuit are communicated to connect with monitor terminal in hard contact switch amount；Programmable logic control
The signal input part of device processed respectively with vibrating sensor group, infrared sensor group, current sensor group and voltage sensor
The signal output end communication connection of group.
Further, air compressor motor group major loop includes at least two mutually isostructural air compressor motor branches, each
Air compressor motor branch includes that circuit includes the voltage sensor in voltage sensor group, the current sense in current sensor group
Device, air compressor motor switch, air compressor motor, air-break circuit-breaker, air compressor machine control relay, soft activator and soft activator
Controlling power circuit；The connection of the control terminal of soft activator controlling power circuit and soft activator.
Further, gas tank blowoff electromagnetic valve circuit is provided with gas tank blowoff electromagnetic valve switch.
Further, PLC simulated measurement input circuit module include gas tank pressure transmitter contact, vibrating sensor contact,
Infrared sensor contact, current sensor contact and voltage sensor contact；
PLC switching value input circuit module includes air compressor motor make and break contact, air-break circuit-breaker contact, gas tank blowdown electricity
Magnet valve make and break contact, gas tank pressure switch contact, soft activator contact and control power monitoring relay tip；
PLC switching value output circuit module includes air compressor machine control relay tip, gas tank blowoff electromagnetic valve control relay
Device contact, plant failure relay tip, the low relay tip of gas tank pressure, the high relay tip of gas tank pressure and it is spare after
Electric appliance contact.
Further, power transmission road includes that air compressor motor make and break contact, gas tank blowoff electromagnetic valve are opened in hard contact switch amount
Coila, soft activator contact, control power monitoring relay tip, plant failure relay tip, the low relay of gas tank pressure
Device contact and the high relay tip of gas tank pressure.
Further, the output end of middle pressure air compressor machine intelligent controlling device is provided with intelligent temperature control unit and intelligence is wet
Spend control unit；Intelligent temperature control unit includes the first controller with middle pressure air compressor machine intelligent controlling device communication connection,
The temperature sensor and cooling device communicated to connect respectively with the first controller, intelligent humidity control unit include and middle pressure pneumatics
The second controller of machine intelligent controlling device communication connection, the humidity sensor communicated to connect respectively with the first controller and heating
Device.
Further, cooling device is fan, and heating device is heater.
Further, the model of the first controller and second controller is the single-chip microcontroller of model AT89S51；
The model BMEP581020 of programmable logic controller (PLC)；
The model SE930 of vibrating sensor, the model OS137 of infrared sensor, the model of current sensor
MIK-DJI-C, the model CHVS-EV of voltage sensor.
This programme has the beneficial effect that
(1) the utility model provides the novel medium voltage air compressor intelligent control system of hydropower station based on fault diagnosis, adopts
It is controlled with high-performance PLC, and simplifies internal system structure, component module increases stand-by equipment, not only ensure that accident
Processing in time, and reduces the generation of failure, facilitates maintenance, improves practicability；
(2) pump motor of novel medium voltage air compressor intelligent control system of hydropower station installs vibrating sensor supervision equipment
Vibration Condition, the temperature change of mounting temperature sensor monitoring motor, the operation shape of installation electric current, voltage sensor monitoring motor
State variation carries out repair and maintenance in advance, extends to be the change curve of monitoring amount and the failure of trend anticipation equipment according to this
The service life of equipment；Quickly positioning failure point can occur according to the number of sensor, improve the timeliness of breakdown maintenance；
(3) service life of pump motor can be analyzed according to the collected data simultaneously, improves the peace of system
Quan Xing；
(4) monitoring center provided by the utility model, realizes on line real-time monitoring, reduces human cost investment, should
System structure is simple, perfect in shape and function, the more contents of big picture are shown and in all directions human-computer dialogue the advantages of, monitoring center is shown in real time
Show that the operation conditions of system, server storing data simultaneously provide the inquiry of history data.
Detailed description of the invention
Fig. 1 is the novel medium voltage air compressor intelligent control system of hydropower station structural block diagram based on fault diagnosis；
Fig. 2 is intelligent temperature/humidity controlling unit structural block diagram.
Specific embodiment
The utility model is further described With reference to embodiment.Wherein, being given for example only property of attached drawing
Illustrate, expression is only schematic diagram, rather than pictorial diagram, should not be understood as the limitation to this patent；In order to which this reality is better described
With novel embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To ability
For field technique personnel, the omitting of some known structures and their instructions in the attached drawings are understandable.
As shown in Figure 1, a kind of novel medium voltage air compressor intelligent control system of hydropower station based on fault diagnosis, comprising:
Monitoring center, middle pressure air compressor machine intelligent controlling device, display, fault diagnosis module, air compressor motor group, gas tank
Blowoff electromagnetic valve, gas tank pressure transmitter and gas tank pressure switch；
Fault diagnosis module includes vibrating sensor group, infrared sensor group, current sensor group and voltage sensor
Device group；Vibrating sensor group and infrared sensor group are correspondingly arranged at pump motor group, and its signal output end and middle pressure
The signal input part of air compressor machine intelligent controlling device communicates to connect；The corresponding outlet with each pump motor group of current sensor group
End is arranged in series, and voltage sensor group correspondence is arranged in parallel with each pump motor group, current sensor group and voltage sensor
The signal input part of the signal output end of group and middle pressure air compressor machine intelligent controlling device communicates to connect；
The signal of display, gas tank pressure transmitter and gas tank pressure switch with middle pressure air compressor machine intelligent controlling device
The signal of input terminal communication connection, air compressor motor group and gas tank blowoff electromagnetic valve with middle pressure air compressor machine intelligent controlling device
Output end communication connection, monitoring center and middle pressure air compressor machine intelligent controlling device communicate to connect.
In the present embodiment, monitoring center includes monitor terminal and server, and monitor terminal is empty with server and middle pressure respectively
The communication connection of press intelligent controlling device.
In the present embodiment, as shown in Fig. 2, it is provided with programmable logic controller (PLC) in middle pressure air compressor machine intelligent controlling device,
Air compressor motor group major loop, gas tank blowoff electromagnetic valve circuit, the control power supply electricity being connect respectively with programmable logic controller (PLC)
Road, PLC simulated measurement input circuit module, PLC switching value input circuit module, PLC switching value output circuit module, hard contact are opened
Measure upper power transmission road and display circuit in pass；Power transmission road and display circuit are communicated to connect with monitor terminal in hard contact switch amount；
The signal input part of programmable logic controller (PLC) respectively with vibrating sensor group, infrared sensor group, current sensor group with
And the signal output end communication connection of voltage sensor group.
In the present embodiment, air compressor motor group major loop include at least two mutually isostructural air compressor motor branches, No. 1
Air compressor motor branch and No. 2 air compressor motor branches；No. 1/No. 2 air compressor motor branches include 1 in voltage sensor group
Number/No. 2 voltage sensors, No. 1/No. 2 current sensors in current sensor group, No. 1/No. 2 air compressor motors switch, No. 1/
No. 2 air compressor motors, No. 1/No. 2 air-break circuit-breakers, No. 1/No. 2 air compressor machines control relay, No. 1/No. 2 soft activators and 1
Number/No. 2 soft activator controlling power circuits；The control of No. 1/No. 2 soft activator controlling power circuits and No. 1/No. 2 soft activators
End connection.Each air compressor motor branch includes that circuit includes voltage sensor in voltage sensor group, current sensor group
In current sensor, air compressor motor switch, air compressor motor, air-break circuit-breaker, air compressor machine control relay, soft activator
And soft activator controlling power circuit；The connection of the control terminal of soft activator controlling power circuit and soft activator.
In the present embodiment, gas tank blowoff electromagnetic valve circuit is provided with gas tank blowoff electromagnetic valve switch.
In the present embodiment, PLC simulated measurement input circuit module includes that gas tank pressure transmitter contact, vibrating sensor connect
Point, infrared sensor contact, current sensor contact and voltage sensor contact；
PLC switching value input circuit module includes air compressor motor make and break contact, air-break circuit-breaker contact, gas tank blowdown electricity
Magnet valve make and break contact, gas tank pressure switch contact, soft activator contact and control power monitoring relay tip；
PLC switching value output circuit module includes air compressor machine control relay tip, gas tank blowoff electromagnetic valve control relay
Device contact, plant failure relay tip, the low relay tip of gas tank pressure, the high relay tip of gas tank pressure and it is spare after
Electric appliance contact.
In the present embodiment, power transmission road includes air compressor motor make and break contact, gas tank blowoff electromagnetic valve in hard contact switch amount
Make and break contact, soft activator contact, control power monitoring relay tip, plant failure relay tip, gas tank pressure it is low after
Electric appliance contact and the high relay tip of gas tank pressure.
In the present embodiment, as shown in Fig. 2, the output end of middle pressure air compressor machine intelligent controlling device is provided with intelligent temperature control
Unit and intelligent humidity control unit；Intelligent temperature control unit includes communicating to connect with middle pressure air compressor machine intelligent controlling device
First controller, the temperature sensor and cooling device communicated to connect respectively with the first controller, intelligent humidity control unit packet
Include the second controller with middle pressure air compressor machine intelligent controlling device communication connection, the humidity communicated to connect respectively with the first controller
Sensor and heating device.
In the present embodiment, cooling device is fan, and heating device is heater.
In the present embodiment, the model of the first controller and second controller is the single-chip microcontroller of model AT89S51；Temperature passes
The model CWDZ31 of sensor；The model HTG3500 of humidity sensor；The model HYR4 of heater；
The model BMEP581020 of programmable logic controller (PLC)；
The model SE930 of vibrating sensor, the model OS137 of infrared sensor, the model of current sensor
MIK-DJI-C, the model CHVS-EV of voltage sensor.
Working principle: when gas tank pressure is lower than minimum working pressure, gas tank pressure switch closure, PLC output switch parameter
Circuit module is connected, and open signal starts No. 1 air compressor motor branch, No. 1 air compressor motor through No. 1 air compressor machine control relay
Work, while No. 1 air compressor motor automatic switch-over circuit is cut off, No. 2 air compressor machine automatic switch-over circuits are connected, when in gas tank pressure
When being raised to maximum working pressure, PLC issues halt instruction, and No. 1 air compressor motor stops working；When gas tank pressure is again below work
When making low pressure limit, gas tank pressure switch closure, PLC switching value output circuit module is connected, due to having opened when last time operation
Opening No. 2 air compressor machine automatic switch-over circuits, open signal starts No. 2 air compressor motor branches through No. 2 air compressor machines control relays, and 2
The work of number air compressor motor, while No. 2 air compressor motor automatic switch-over circuits are cut off, No. 1 air compressor machine automatic switch-over circuit is connected,
When gas tank pressure rises to maximum working pressure, PLC issues halt instruction, and No. 2 air compressor motors stop working.It is thus real
Show two air compressor machines to work alternatively.If pressing air compressor machine intelligent controlling device faulty in power station, plant failure indicator light
It is bright；After governor operation stops, gas tank blowoff electromagnetic valve circuit is connected, and the greasy dirt in gas tank is in gas tank under residual compression effect
Gas tank is discharged along gas tank blowoff electromagnetic valve.
A kind of save the cost investment provided by the utility model, practicability is high, real-time is good and timeliness it is good based on
The novel medium voltage air compressor intelligent control system of hydropower station of fault diagnosis solves easy break-down of the existing technology, is not easy
Maintenance and practicability is low caused by structure is complicated, the generation that is unable to monitor failure, need a large amount of manpowers carry out investigation maintenance with
And the problem of being unable to the operation conditions and query history operation data of real-time display system.
The above description is only the embodiments of the present invention, and embodiment is used to understand the structure, function and effect of utility model
Fruit, the protection scope being not intended to limit the utility model.Various modifications and changes may be made to the present invention, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of novel medium voltage air compressor intelligent control system of hydropower station based on fault diagnosis characterized by comprising
Monitoring center, middle pressure air compressor machine intelligent controlling device, display, fault diagnosis module, air compressor motor group, gas tank blowdown
Solenoid valve, gas tank pressure transmitter and gas tank pressure switch；
The fault diagnosis module includes vibrating sensor group, infrared sensor group, current sensor group and voltage sensor
Device group；The vibrating sensor group and infrared sensor group are correspondingly arranged at pump motor group, and its signal output end with
The signal input part communication connection of middle pressure air compressor machine intelligent controlling device；The current sensor group correspondence and each pump motor
The leading-out terminal of group is arranged in series, and the voltage sensor group correspondence is arranged in parallel with each pump motor group, current sensor group
It is communicated to connect with the signal output end of voltage sensor group and the signal input part of middle pressure air compressor machine intelligent controlling device；
The signal of the display, gas tank pressure transmitter and gas tank pressure switch with middle pressure air compressor machine intelligent controlling device
Input terminal communication connection, the air compressor motor group and gas tank blowoff electromagnetic valve with middle pressure air compressor machine intelligent controlling device
Signal output end communication connection, the monitoring center and middle pressure air compressor machine intelligent controlling device communicate to connect.
2. the novel medium voltage air compressor intelligent control system of hydropower station according to claim 1 based on fault diagnosis, special
Sign is, the monitoring center includes monitor terminal and server, the monitor terminal respectively with server and middle pressure air compressor machine
Intelligent controlling device communication connection.
3. the novel medium voltage air compressor intelligent control system of hydropower station according to claim 2 based on fault diagnosis, special
Sign is, is provided with programmable logic controller (PLC) in medium pressure air compressor machine intelligent controlling device, respectively with programmable logic control
Air compressor motor group major loop, gas tank blowoff electromagnetic valve circuit, controlling power circuit, the PLC analog input electricity of device connection processed
Road module, PLC switching value input circuit module, PLC switching value output circuit module, power transmission road and aobvious in hard contact switch amount
Show circuit；Power transmission road and display circuit are communicated to connect with monitor terminal in the hard contact switch amount；The programmable logic
The signal input part of controller respectively with vibrating sensor group, infrared sensor group, current sensor group and voltage sensor
The signal output end of device group communicates to connect.
4. the novel medium voltage air compressor intelligent control system of hydropower station according to claim 3 based on fault diagnosis, special
Sign is that the air compressor motor group major loop includes at least two mutually isostructural air compressor motor branches, each sky
Press motor branch includes that circuit includes the voltage sensor in voltage sensor group, the current sense in current sensor group
Device, air compressor motor switch, air compressor motor, air-break circuit-breaker, air compressor machine control relay, soft activator and soft activator
Controlling power circuit；The connection of the control terminal of the soft activator controlling power circuit and soft activator.
5. the novel medium voltage air compressor intelligent control system of hydropower station according to claim 4 based on fault diagnosis, special
Sign is that the gas tank blowoff electromagnetic valve circuit is provided with gas tank blowoff electromagnetic valve switch.
6. the novel medium voltage air compressor intelligent control system of hydropower station according to claim 5 based on fault diagnosis, special
Sign is that the PLC simulated measurement input circuit module includes gas tank pressure transmitter contact, vibrating sensor contact, infrared ray
Sensor contact, current sensor contact and voltage sensor contact；
The PLC switching value input circuit module includes air compressor motor make and break contact, air-break circuit-breaker contact, gas tank blowdown electricity
Magnet valve make and break contact, gas tank pressure switch contact, soft activator contact and control power monitoring relay tip；
The PLC switching value output circuit module includes air compressor machine control relay tip, gas tank blowoff electromagnetic valve control relay
Device contact, plant failure relay tip, the low relay tip of gas tank pressure, the high relay tip of gas tank pressure and it is spare after
Electric appliance contact.
7. the novel medium voltage air compressor intelligent control system of hydropower station according to claim 6 based on fault diagnosis, special
Sign is, in the hard contact switch amount power transmission road include air compressor motor make and break contact, gas tank blowoff electromagnetic valve make and break contact,
Soft activator contact, control power monitoring relay tip, plant failure relay tip, the low relay tip of gas tank pressure with
And the high relay tip of gas tank pressure.
8. the novel medium voltage air compressor intelligent control system of hydropower station according to claim 7 based on fault diagnosis, special
Sign is that the output end of medium pressure air compressor machine intelligent controlling device is provided with intelligent temperature control unit and intelligent humidity control
Unit；The intelligent temperature control unit includes the first controller with middle pressure air compressor machine intelligent controlling device communication connection, point
Not with the temperature sensor and cooling device of the communication connection of the first controller, the intelligent humidity control unit includes empty with middle pressure
Press intelligent controlling device communication connection second controller, respectively with the first controller communication connection humidity sensor and plus
Thermal.
9. the novel medium voltage air compressor intelligent control system of hydropower station according to claim 8 based on fault diagnosis, special
Sign is that the cooling device is fan, and the heating device is heater.
10. the novel medium voltage air compressor intelligent control system of hydropower station according to claim 9 based on fault diagnosis, special
Sign is that the model of first controller and second controller is the single-chip microcontroller of model AT89S51；
The model BMEP581020 of the programmable logic controller (PLC)；
The model SE930 of the vibrating sensor, the model OS137 of infrared sensor, the model of current sensor
MIK-DJI-C, the model CHVS-EV of voltage sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821842282.XU CN209067445U (en) | 2018-11-09 | 2018-11-09 | A kind of novel medium voltage air compressor intelligent control system of hydropower station based on fault diagnosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821842282.XU CN209067445U (en) | 2018-11-09 | 2018-11-09 | A kind of novel medium voltage air compressor intelligent control system of hydropower station based on fault diagnosis |
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| Publication Number | Publication Date |
|---|---|
| CN209067445U true CN209067445U (en) | 2019-07-05 |
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ID=67098273
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821842282.XU Active CN209067445U (en) | 2018-11-09 | 2018-11-09 | A kind of novel medium voltage air compressor intelligent control system of hydropower station based on fault diagnosis |
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| Country | Link |
|---|---|
| CN (1) | CN209067445U (en) |
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2018
- 2018-11-09 CN CN201821842282.XU patent/CN209067445U/en active Active
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