CN107355336A - A kind of intelligent oil pressure control system - Google Patents
A kind of intelligent oil pressure control system Download PDFInfo
- Publication number
- CN107355336A CN107355336A CN201710771176.0A CN201710771176A CN107355336A CN 107355336 A CN107355336 A CN 107355336A CN 201710771176 A CN201710771176 A CN 201710771176A CN 107355336 A CN107355336 A CN 107355336A
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- CN
- China
- Prior art keywords
- pressure
- oil
- plc
- pressure transmitter
- control module
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/008—Measuring or testing arrangements
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention discloses a kind of intelligent oil pressure control system, including switch board, pressure transmitter, differential pressure transmitter, pressure-oil tank and Oil pump electrical machinery group, switch board peripheral hardware confidence signal lamp, touch display screen, conventional operating selection switch, air-break is equiped with switch board, A.C. contactor, relay, PLC, pressure transmitter, differential pressure transmitter and soft initiator, wherein, the touch display screen is established with PLC and is bi-directionally connected, pressure transmitter, the input of differential pressure transmitter is connected on pressure oil tank, pressure transmitter, the output end of differential pressure transmitter is connected with the input of PLC, the output end of PLC and the input of soft initiator connect, the output end of soft initiator is connected with Oil pump electrical machinery group.Pressure transmitter and pressure difference transmitter realize the continuous measurement to pressure and oil level, precision is high, reliability is high as oil pressure and the measuring cell of liquid level.
Description
Technical field
The present invention relates to technical field of electric control, is specifically related to a kind of intelligent oil pressure control system.
Background technology
The effect of Water-turbine Generator Velocity Modulation System oil gear is in order to which governing system provides safe and reliable, stable pressure
Power oil sources, to realize the startup-shutdown of turbine-generator units, frequency and Load Regulation, the operation of water wheels regulating system oil gear
Reliability, stability are directly connected to the safety of main equipment and the quality of generating, and traditional oil pressure unit control generally use connects
Point mode manometer or mechanical relay and float signalling means, the continuous measurement to pressure and oil level is realized, adjustment is difficult, Er Qierong
Fatigue is also easy to produce, the control for Oil pump electrical machinery, using traditional A.C. contactor, it is dirty easily to produce arcing, spark and noise
The drawbacks such as dye, shorten the service life of motor, be unfavorable for saving maintenance cost.
The content of the invention
Goal of the invention：For above-mentioned existing problem and shortage of the prior art, it is an object of the invention to provide one kind
Intelligent oil pressure control system, be to aim at the control of governing system oil gear and design, be able to maintain that in pressure oil tank oil pressure and
Oil is in prescribed limit, ensures the pressure oil supply needed for the normal operation of Oil pump electrical machinery, has reliable, function peace
Entirely, the features such as protection is improved.
Technical scheme：To reach above-mentioned purpose, a kind of intelligent oil pressure control system of the present invention, including switch board,
Pressure transmitter, differential pressure transmitter, pressure-oil tank and Oil pump electrical machinery group, the switch board peripheral hardware confidence signal lamp, touch display screen, often
With operating selection switch, air-break, A.C. contactor, relay, PLC, pressure inverting are equiped with switch board
Device, differential pressure transmitter and soft initiator, wherein, the touch display screen is established with PLC and is bi-directionally connected, and the pressure becomes
Send the input of device, differential pressure transmitter to be connected on pressure oil tank, pressure transmitter, differential pressure transmitter output end and PLC
The input connection of controller, the output end of PLC and the input of soft initiator connect, the output of the soft initiator
End is connected with Oil pump electrical machinery group.Using high accuracy, the pressure transmitter of high reliability and pressure difference transmitter as oil pressure and liquid level
Measuring cell, substitute traditional adjustment difficult, hold fatigable contact type pressure gauge or mechanical relay and float signalling means,
Realize the continuous measurement to pressure and oil level.Oil pump electrical machinery is started by respective soft initiator respectively, and oil pump motor can be achieved
Soft start and soft stop.
Further, automatic air supply device is also connected with the pressure-oil tank, PLC
Output end is connected with automatic air supply device.The tonifying Qi of pressure-oil tank can realize manually or automatically tonifying Qi by tonifying Qi magnetic valve.
Further, pressure switch group, the pressure switch group are additionally provided with the switch board
One end is connected with pressure-oil tank, and the other end is connected with PLC.Pressure switch group is used for the detection of oil pressure map value.
Further, inserting valve group is additionally provided with the switch board, described inserting valve group one end is connected with PLC,
The other end connects Oil pump electrical machinery group.
Further, the PLC includes processor module, pressure transmitter control module, differential pressure transmitter control
Molding block, automatic inflating device control module, pressure switch group control module, inserting valve group control module, soft start control module, institute
State pressure transmitter control module, differential pressure transmitter control module, automatic inflating device control module, pressure switch group control module,
Inserting valve group control module electrically connects with processor module.
Further, the pressure oil tank is provided with 2 liquid-level switches, the liquid-level switch
It is connected with PLC.
Further, the touch display screen shows oil pressure, oil level, oil return fuel level in tank and the fault message of oil pressure tank, institute
State the operating condition that indicator lamp is used to indicate working barrel and stand-by pump.
Above-mentioned technical proposal can be seen that beneficial effects of the present invention：
（1）A kind of intelligent oil pressure control system of the present invention, it is reasonable in design, using high accuracy, the pressure of high reliability
Power transmitter and pressure difference transmitter substitute traditional adjustment difficult, hold fatigable connect as oil pressure and the measuring cell of liquid level
Point mode manometer or mechanical relay and float signalling means, realize the continuous measurement to pressure and oil level.
（2）A kind of intelligent oil pressure control system of the present invention, using soft initiator control oil pump group of motors, realizes nothing
Contact, muting motor start stop operation, increase service life of equipment, alleviate maintenance workload.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of the switch board of the present invention；
Fig. 3 is the internal structure schematic diagram of switch board of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated.
Embodiment
A kind of intelligent oil pressure control system as Figure 1-3, including switch board 1, the peripheral hardware confidence signal lamp of switch board 1
2nd, touch display screen 3, conventional operating selection switch 4, air-break 5, A.C. contactor 6, relay are equiped with switch board 1
7th, PLC 8, pressure transmitter 9, differential pressure transmitter 10 and soft initiator 11, wherein, the touch display screen 3 is controlled with PLC
Device 8 processed is established and is bi-directionally connected, and the pressure transmitter 9, the input of differential pressure transmitter 10 are connected on pressure oil tank 12, pressure
The input of transmitter 9, the output end of differential pressure transmitter 10 with PLC 8 is connected, the output end of PLC 8 with it is soft
The input connection of starter 11, the output end of the soft initiator 11 are connected with Oil pump electrical machinery group 13.On the pressure-oil tank 12
Automatic air supply device 14 is also connected with, the output end of PLC 8 is connected with automatic air supply device 14.
Pressure switch group 15, described one end of pressure switch group 15 and oil pressure are additionally provided with switch board 1 described in the present embodiment
Case 12 is connected, and the other end is connected with PLC 8.Inserting valve group 16, the inserting valve group 16 are additionally provided with the switch board 1
One end is connected with PLC 8, other end connection Oil pump electrical machinery group 13.
PLC 8 described in the present embodiment includes processor module, pressure transmitter control module, differential pressure transmitter
Control module, automatic inflating device control module, pressure switch group control module, inserting valve group control module, soft start control module,
The pressure transmitter control module, differential pressure transmitter control module, automatic inflating device control module, pressure switch group control mould
Block, inserting valve group control module electrically connect with processor module.
Pressure oil tank 12 described in the present embodiment is provided with 2 liquid-level switches, and the liquid-level switch connects with PLC 8
Connect.
Touch display screen 3 described in the present embodiment shows oil pressure, oil level, oil return fuel level in tank and the failure letter of oil pressure tank 12
Breath, the indicator lamp are used for the operating condition for indicating working barrel and stand-by pump.
Specific works method is as follows：
（1）The electric connecting relation of above-mentioned each part is connected；
（2）Operating selection switch 4 will be commonly used on switch board 1 to be placed in " automatic catch " and realize automatic running；
（3）Pressure transmitter 9 carries out oil pressure detection to pressure-oil tank 12 in real time, and differential pressure pick-up 10 carries out oil to pressure-oil tank 12 in real time
Position detection；
（4）PLC 8 gathers the related data of pressure transmitter 9 and differential pressure pick-up 10 at any time；
（5）Then PLC 8 carries out logic analysis according to the data collected according to different operating modes；
（6）When the oil pressure of pressure-oil tank 12 is down to work pump startup setting value, PLC 8 controls working barrel to pass through soft start
Device 11 starts, and buys oil to rated oil pressure, then stops, and works after pump startup, if oil pressure continues to decline, PLC 8 controls standby
Oil pressure is down to rated oil pressure together with pump startup, and working barrel, then two pumps stop；
（7）When the oil level in pressure-oil tank 12 reaches high oil level, PLC 8 starts tonifying Qi order, and automatic air supply device 14 is opened
Beginning tonifying Qi, when the oil pressure in pressure-oil tank 12 rises to rated oil pressure, tonifying Qi stops.
Embodiment is only illustrative of the invention and is not intended to limit the scope of the invention, after the present invention has been read, this
Art personnel fall within the application appended claims limited range to the various equivalences of the present invention.
Claims (7)
- A kind of 1. intelligent oil pressure control system, it is characterised in that：Including switch board（1）, pressure transmitter（9）, differential pressure transmitter (10), pressure-oil tank（12）With Oil pump electrical machinery group（13）, the switch board（1）Peripheral hardware confidence signal lamp（2）, touch display screen（3）, often Use operating selection switch（4）, switch board（1）Inside it is equiped with air-break（5）, A.C. contactor（6）, relay（7）、PLC Controller（8）, wherein, the touch display screen（3）With PLC（8）Foundation is bi-directionally connected, pressure transmitter（9）, differential pressure The input of transmitter (10) is connected on pressure oil tank (12), pressure transmitter（9）, differential pressure transmitter (10) output end it is equal With PLC（8）Input connection, PLC（8）Output end and soft initiator（11）Input connection, institute State soft initiator（11）Output end and Oil pump electrical machinery group（13）Connection, the Oil pump electrical machinery group（13）Including working barrel and standby Pump.
- A kind of 2. intelligent oil pressure control system according to claim 1, it is characterised in that：Also connect on the pressure-oil tank (12) Connect automatic air supply device (14), PLC（8）Output end be connected with automatic air supply device (14).
- A kind of 3. intelligent oil pressure control system according to claim 1, it is characterised in that：The switch board（1）Inside also set There is pressure switch group（15）, the pressure switch group（15）One end is connected with pressure-oil tank (12), the other end and PLC（8） Connection.
- A kind of 4. intelligent oil pressure control system according to claim 2, it is characterised in that：The switch board（1）Inside also set There is inserting valve group（16）, the inserting valve group（16）One end and PLC（8）Connection, other end connection Oil pump electrical machinery group （13）.
- A kind of 5. intelligent oil pressure control system according to claim 4, it is characterised in that：The PLC（8）Including Processor module, pressure transmitter control module, differential pressure transmitter control module, automatic inflating device control module, pressure switch group Control module, inserting valve group control module, soft start control module, the pressure transmitter control module, differential pressure transmitter control Molding block, automatic inflating device control module, pressure switch group control module, inserting valve group control module are electrically connected with processor module Connect.
- A kind of 6. intelligent oil pressure control system according to claim 1, it is characterised in that：Set on the pressure oil tank (12) There are 2 liquid-level switches, the liquid-level switch and PLC（8）Connection.
- A kind of 7. intelligent oil pressure control system according to claim 1, it is characterised in that：The touch display screen（3）It is aobvious Show oil pressure tank（12）Oil pressure, oil level, oil return fuel level in tank and fault message, the indicator lamp be used for indicate working barrel and stand-by pump Operating condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710771176.0A CN107355336A (en) | 2017-08-31 | 2017-08-31 | A kind of intelligent oil pressure control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710771176.0A CN107355336A (en) | 2017-08-31 | 2017-08-31 | A kind of intelligent oil pressure control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107355336A true CN107355336A (en) | 2017-11-17 |
Family
ID=60290416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710771176.0A Pending CN107355336A (en) | 2017-08-31 | 2017-08-31 | A kind of intelligent oil pressure control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107355336A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5983801A (en) * | 1982-11-04 | 1984-05-15 | Hitachi Ltd | Oil surface control method for pressurized oil tank |
| CN202926516U (en) * | 2012-11-28 | 2013-05-08 | 湖南沄辉科技股份有限公司 | Oil pressure control system of hydropower station oil supply device |
| CN103195644A (en) * | 2013-03-26 | 2013-07-10 | 四川中鼎自动控制有限公司 | Automatic air supplement system and air supplement method for oil pressure device of hydropower station |
-
2017
- 2017-08-31 CN CN201710771176.0A patent/CN107355336A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5983801A (en) * | 1982-11-04 | 1984-05-15 | Hitachi Ltd | Oil surface control method for pressurized oil tank |
| CN202926516U (en) * | 2012-11-28 | 2013-05-08 | 湖南沄辉科技股份有限公司 | Oil pressure control system of hydropower station oil supply device |
| CN103195644A (en) * | 2013-03-26 | 2013-07-10 | 四川中鼎自动控制有限公司 | Automatic air supplement system and air supplement method for oil pressure device of hydropower station |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171117 |
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| RJ01 | Rejection of invention patent application after publication |