CN205955897U - Unit top cap drainage control system - Google Patents
Unit top cap drainage control system Download PDFInfo
- Publication number
- CN205955897U CN205955897U CN201620965641.5U CN201620965641U CN205955897U CN 205955897 U CN205955897 U CN 205955897U CN 201620965641 U CN201620965641 U CN 201620965641U CN 205955897 U CN205955897 U CN 205955897U
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- water level
- pump
- plc
- immersible pump
- standby
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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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- Control Of Positive-Displacement Pumps (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
The utility model discloses an unit top cap drainage control system, including sump pit, main immersible pump, reserve immersible pump and PLC controller, the inside fixed mounting of sump pit has level sensor and water -level switch, level sensor detects the actual height of water level and contrasts and pass comparison results back the PLC controller with water -level switch, the manually operation button is just still installed according to the switch of passing signal control owner's immersible pump and reserve immersible pump back to the PLC controller on main immersible pump and reserve immersible pump, the PLC controller still is connected with communication device, is communication device through passive dead contact with signal transmission to LCU the IO device adopts a plurality of automatic measurement elements, has accomplished that equipment is simple to comprehensive control of water pump, sump pit, and later maintenance is comparatively simple and convenient, has to open the function of stopping automatically, will realize having saved manpower resources to comprehensive control of drainage equipment, has reduced the maintenance cost.
Description
Technical field
This utility model is related to automaton technical field, specially a kind of unit top cover draining control system.
Background technology
Operationally top cover main shaft seal has leak to generating set, and being that anti-water cutting off machine room water level is too high floods water guide oil basin
Deng equipment, top cover drainage system need to be set for this, head cover drainage is the indispensable important auxiliary equipment in power station, traditional top cover
Drainage control system automatization level is relatively low, the stem grafting opening, stopping the electric contact liquid-level switch that control is cheated by the machine that is arranged on of water pump
Point realizing, the working of primary, spare water pump, the water level of sump and periodically complete manually by power plant staff
Become.When unit operation it is necessary to constantly discharge the leak of main shaft seal.The feature of drainage for overhaul is that water discharge time continues not
Can interrupt.Therefore, thus must arrange work at any time personnel's timing start and stop draining pump, considerably increase power plant staff's
Labor intensity, causes certain waste of human resource.And traditional detecting system employs substantial amounts of auxiliary reclay, time
The devices such as relay, enumerator, the easily causing trouble due to reasons such as poor contact of contacts.
Content of the invention
For problem above, this utility model provides a kind of unit top cover draining control system, is capable of automatically examining
Survey, using Quanxing PLC control system, save human resourcess, reduce maintenance cost, can be with effectively solving background technology
Problem.
For achieving the above object, this utility model provides following technical scheme：A kind of unit top cover draining control system, bag
Include sump, main immersible pump, standby immersible pump and PLC, be installed with inside described sump level sensor and
Water level switch, described level sensor detection actual height of water level is simultaneously contrasted with water level switch and is passed back comparing result
PLC, described PLC controls the switch of main immersible pump and standby immersible pump according to passing signal back, and in main diving
It is also equipped with manual operation button, described PLC is also associated with communication device, described communication dress on pump and standby immersible pump
Put and LCU-I/O device is transmitted a signal to by passive idle contact.
As a kind of preferred technical scheme of this utility model, described water level switch is by termination of pumping water level, primary pump startup water
Position and standby pump startup alarm water level composition, and termination of pumping water level, primary pump startup water level and standby pump startup alarm water level are respectively
By bottom of catchmenting to aligned on top.
As a kind of preferred technical scheme of this utility model, described standby pump startup alarm water level is also equipped with report to the police
Device starts sensor, and described alarm is started sensor and is also connected with PLC, and described PLC is connected with alarm.
As a kind of preferred technical scheme of this utility model, described PLC is also equipped with start stored count
Device.
As a kind of preferred technical scheme of this utility model, described manual operation button and PLC are connected in parallel,
And manual operation button and PLC work independently from each other.
Compared with prior art, the beneficial effects of the utility model are：This unit top cover draining control system, using multiple
Automatic measurement element, has accomplished the overall monitor to water pump, sump, and equipment is simple, and later maintenance is relatively simple, has certainly
Dynamic start and stop, the accumulative function such as the number of starts, water level detecting, automatic alarm, will realize the overall monitor to drainage equipment, are power plant
" unattended, few man on duty " provide reliable guarantee, when ensuring that power plant runs without the artificial operation of staff
Working environment, save human resourcess, reduce maintenance cost.
Brief description
Fig. 1 is this utility model structural representation；
In figure：1- sump；The main immersible pump of 2-；The standby immersible pump of 3-；4-PLC controller；5- level sensor；6- water level
Switch；7- manual operation button；8- communication device；The passive idle contact of 9-；10-LCU-I/O device；11- termination of pumping water level；12- master
Use pump startup water level；13- standby pump startup alarm water level；14- alarm starts sensor；15- alarm；16- starts accumulative
Enumerator.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
Embodiment：
Refer to Fig. 1, this utility model provides a kind of technical scheme：A kind of unit top cover draining control system, including collection
Well 1, main immersible pump 2, standby immersible pump 3 and PLC 4, are installed with level sensor 5 inside described sump 1
With water level switch 6, described level sensor 5 detection actual height of water level simultaneously contrasted with water level switch 6 and by comparing result
Pass PLC 4 back, described PLC 4 controls the switch of main immersible pump 2 and standby immersible pump 3 according to passing signal back, and
Manual operation button 7 is also equipped with main immersible pump 2 and standby immersible pump 3, described PLC 4 is also associated with communication dress
Put 8, described communication device 8 transmits a signal to LCU-I/O device 10 by passive idle contact 9.
Preferably, described water level switch 6 is by termination of pumping water level 11, primary pump startup water level 12 and standby pump startup warning water
Position 13 composition, and termination of pumping water level 11, primary pump startup water level 12 and standby pump startup alarm water level 13 are respectively by sump 1 bottom
To aligned on top；Alarm is also equipped with described standby pump startup alarm water level 13 and starts sensor 14, described alarm opens
Dynamic sensor 14 is also connected with PLC 4, and described PLC 4 is connected with alarm 15；In described PLC 4 also
Startup integrating counter 16 is installed；Described manual operation button 7 and PLC 4 are connected in parallel, and manual operation button 7
Work independently from each other with PLC 4.
The utility model has the advantage of：
（1）Unit top cover drainage system arranges two self priming pumps, one work of two water pumps, one standby and standby each other
With.Three water level switches are provided with top cover, every water level switch exports a docking point, monitors top cover water level and control Absorb Water
The opening, stop of pump；
(2) every water pump has " automatic ", the method for operation of " manual ", and under automatic control mode, automatic control pressed by water pump
Flow process processed is controlled, can manual operation in the case that automated manner exits；
(3) under " automatic " operating condition, two water pumps are automatically controlled by the liquid-level switch reflecting water level and open, stop, and control
System is automatically determined by run time or start-stop time, changes primary, stand-by pump.Operation Mode Selection send calculating on the position of the switch
Machine monitoring system；Under " manual " operating condition, independent of PLC, each pump is provided with one group of " open, stop " hands to water pump control loop
Dynamic operation button, is directly controlled the start and stop of water pump by operator in manual work mode；
(4) automatic control flow chart
1st, top cover water level automatically controls using water level switch control, sets three-level water level altogether：Termination of pumping water level, primary pump startup water
Position, standby pump startup alarm water level.
2nd, under automatic control mode, when water level rises to initiation value, start work（Primary）Pump；When water level is down to normal,
Then pump trip.
3rd, when water level continues to raise alarming value, start stand-by pump, be simultaneously emitted by alarm signal；When water level is down to normally
When, then pump trip.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all this
Any modification, equivalent and improvement made within the spirit of utility model and principle etc., should be included in this utility model
Protection domain within.
Claims (5)
1. a kind of unit top cover draining control system it is characterised in that：Including sump（1）, main immersible pump（2）, standby diving
Pump（3）And PLC（4）, described sump（1）Inside is installed with level sensor（5）And water level switch（6）, institute
State level sensor（5）Detection actual height of water level and water level switch（6）Contrasted and passed comparing result back PLC control
Device（4）, described PLC（4）Control main immersible pump according to passing signal back（2）With standby immersible pump（3）Switch, and leading
Immersible pump（2）With standby immersible pump（3）On be also equipped with manual operation button（7）, described PLC（4）It is also associated with leading to
News device（8）, described communication device（8）By passive idle contact（9）Transmit a signal to LCU-I/O device（10）.
2. a kind of unit top cover draining control system according to claim 1 it is characterised in that：Described water level switch（6）
By termination of pumping water level（11）, primary pump startup water level（12）With standby pump startup alarm water level（13）Composition, and termination of pumping water level（11）、
Primary pump startup water level（12）With standby pump startup alarm water level（13）Respectively by sump（1）Bottom is to aligned on top.
3. a kind of unit top cover draining control system according to claim 2 it is characterised in that：Described standby pump startup report
Alert water level（13）On be also equipped with alarm start sensor（14）, described alarm startup sensor（14）Also with PLC control
Device（4）Connect, described PLC（4）It is connected with alarm（15）.
4. a kind of unit top cover draining control system according to claim 1 it is characterised in that：Described PLC（4）
On be also equipped with start integrating counter（16）.
5. a kind of unit top cover draining control system according to claim 1 it is characterised in that：Described manual operation button
（7）And PLC（4）It is connected in parallel, and manual operation button（7）And PLC（4）Work independently from each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620965641.5U CN205955897U (en) | 2016-08-29 | 2016-08-29 | Unit top cap drainage control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620965641.5U CN205955897U (en) | 2016-08-29 | 2016-08-29 | Unit top cap drainage control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205955897U true CN205955897U (en) | 2017-02-15 |
Family
ID=57981213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620965641.5U Active CN205955897U (en) | 2016-08-29 | 2016-08-29 | Unit top cap drainage control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205955897U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983717A (en) * | 2021-03-03 | 2021-06-18 | 广西森格自动化科技股份有限公司 | Intelligent water drainage method for top cover of water turbine |
-
2016
- 2016-08-29 CN CN201620965641.5U patent/CN205955897U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983717A (en) * | 2021-03-03 | 2021-06-18 | 广西森格自动化科技股份有限公司 | Intelligent water drainage method for top cover of water turbine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |