CN208749603U - A kind of device of draining pump control top cover of hydraulic turbine set water level - Google Patents
A kind of device of draining pump control top cover of hydraulic turbine set water level Download PDFInfo
- Publication number
- CN208749603U CN208749603U CN201821214532.5U CN201821214532U CN208749603U CN 208749603 U CN208749603 U CN 208749603U CN 201821214532 U CN201821214532 U CN 201821214532U CN 208749603 U CN208749603 U CN 208749603U
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- China
- Prior art keywords
- water level
- draining pump
- top cover
- contactor
- hydraulic turbine
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 238000001514 detection method Methods 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010723 turbine oil Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Control Of Positive-Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of devices of draining pump control top cover of hydraulic turbine set water level, including the draining pump at top cover water level is arranged in；The water level sensor for sensed water level is additionally provided at top cover water level；Draining pump and water level sensor are all connected to control device；Control device connects display device；The signal that control device is detected according to water level sensor controls the start and stop of draining pump；The utility model structure is simple, avoids substantial contribution investment, reduces resource waste, under the premise of guaranteeing safe mass, can reach and give warning in advance, the purpose prevented in advance avoids property loss.
Description
Technical field
The utility model relates to a kind of devices for controlling top cover of hydraulic turbine set water level, and in particular to a kind of draining pump control water
Take turns the device of unit top cover water level.
Background technique
According to the design feature of the hydraulic turbine, in compressor emergency shutdown state, guide vane is all closed, and is only had in spiral case at this time
Water；Due to abrasion of mechanical structure etc., leak at guide vane sleeve, top seal leak etc. causes top cover water level to rise；When
When unit is kept in motion, guide vane is opened, and has been completely filled with water in spiral case and runner envelope at this time, due to main shaft seal leak or
The reasons such as person's air admission valve leak, it is excessively high to also result in top cover water level；After top cover water level is excessively high, water pilot bearing, water can be flooded
It will affect oil film and oil after the water inlet of guide bearing turbine oil, in turn result in serious consequence；To avoid such accident from occurring, generally adopt
Personnel's timing is taken to manually boot pumping drainage, timed patrol inspection has thereby resulted in a large amount of personnel, wasted effort, or even due to
Work carelessness, will cause economic loss.
Utility model content
The utility model provides a kind of reduction personnel, the wasting of resources, improves the draining pump control hydraulic turbine of security reliability
The device of group top cover water level.
The technical solution adopted in the utility model is: a kind of device of draining pump control top cover of hydraulic turbine set water level, including
Draining pump at top cover water level is set；The water level sensor for sensed water level is additionally provided at top cover water level；Draining pump and
Water level sensor is all connected to control device；Control device connects display device；Control device is detected according to water level sensor
Signal controls the start and stop of draining pump.
Further, the control device includes contactor KM and switch；The float of switch is arranged in top cover
At water level；The normally opened contact of contactor KM is connected between three-phase alternating-current supply and the motor of draining pump；The coil one of contactor KM
L3 in end connection three-phase alternating-current supply, the other end connect N；Manual stop button is also in series between contactor KM coil and L3
SB1 and manual actuation of button SB2；The normally closed contact S1 of switch is connected between contactor KM coil and N；SB2 is upper in parallel
The normally opened contact of contactor KM is also parallel with the normal opened contact S2 of switch.
Further, the manual actuation of button SB2 band self-locking device.
Further, enabling signal lamp RD1 is provided on the draining pump；After the normally opened contact of RD1 series contactor KM
It is connected between the L2 and N in three-phase alternating-current supply.
Further, stop light RD2 is provided on the draining pump；After the normally-closed contact of RD2 series contactor KM
It is connected between the L2 and N in three-phase alternating-current supply.
The beneficial effects of the utility model are:
(1) the utility model can be automatically controled the start and stop of draining pump, guarantees turbine-generator units top cover water level, prevents water level
It is excessively high to lead to serious consequence；
(2) the utility model structure is simple, avoids substantial contribution investment, reduces resource waste, and is guaranteeing safe matter
Under the premise of amount, it can reach and give warning in advance, the purpose prevented in advance avoids property loss.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the utility model circuit connecting relation schematic diagram.
In figure: 1- draining pump, 2- top cover, 3- switch, 4- control device, 5- display device, 6- water level sensor.
Specific embodiment
The utility model is described further in the following with reference to the drawings and specific embodiments.
As shown in Figs. 1-2, a kind of device of draining pump control top cover of hydraulic turbine set water level, including be arranged in 2 water level of top cover
The draining pump 1 at place；The water level sensor 6 for sensed water level is additionally provided at 2 water level of top cover；Draining pump 2 and water level sensor 6
It is all connected to control device 4；Control device 4 connects display device 5；The signal that control device 4 is detected according to water level sensor 6,
Control the start and stop of draining pump 2.
Control device 4 includes contactor KM and switch 3；The float of switch 3 is arranged at 2 water level of top cover；Three
The normally opened contact of contactor KM is connected between phase AC power source and the motor of draining pump 2；Coil one end connection three of contactor KM
L3 in phase AC power source, the other end connect N；Manual stop button SB1 and hand are also in series between contactor KM coil and L3
Dynamic start button SB2；The normally closed contact S1 of switch 3 is connected between contactor KM coil and N；The upper parallel contactor of SB2
The normally opened contact of KM is also parallel with the normal opened contact S2 of switch 3；Manual actuation of button SB2 band self-locking device；Draining pump 2
On be provided with enabling signal lamp RD1；The L2 and N being connected to after the normally opened contact of RD1 series contactor KM in three-phase alternating-current supply
Between；Stop light RD2 is provided on draining pump 2；Three-phase alternating current is connected to after the normally-closed contact of RD2 series contactor KM
Between L2 and N in source.
In use, water level sensor 6 and switch 3 are accessed control loop as depicted in figs. 1 and 2；Wherein draining pump 1
In motor be three-phase alternating current 380V asynchronous machine, L1, L2 and L3 respectively represent AC power source A, B, C three-phase；380V will be exchanged
Contactor KM major loop is accessed first, is then respectively connected to asynchronous motor three-phase；When the electrification of contactor KM coil, main touching
Exchange 380V alternating current is sent to motor, makes electric motor starting by head closure；When contactor KM deactivation coil point, main contact is disconnected, electricity
It is out of service that machine M loses AC power source.
Manual stop button SB1 band self-locking function, state is kept after pressing, and power supply L3 is accessed in normally-closed contact one end
Place, the other end are connected serially to the normal opened contact of manual actuation of button SB2；Wherein SB2 connects circuit after pressing without self-locking function
Logical, release button back contact restores normally open position again；The coil of contactor KM is accessed, then is formed into a loop by switch S1；
In order to guarantee contactor KM coil self-sustaining, the normally opened contact of parallel contactor KM on the circuit button SB2, when pressing SB2
Charge contactor KM coil；The contactor KM normally opened contact closure in parallel with SB2, so that the circuit L3, SB1, KM, S1 is logical；Together
When in order to guarantee high water level when water pump can automatically turn on, the switch S2 normal opened contact in parallel on button SB2；S2 is that float is opened
High water level normal opened contact is closed, when pump position is opened in water level arrival, normally opened contact is closed automatically；This circuit is due to only accessing
L3, so being alternating current 220V control loop.
It is connected between the L2 and N in three-phase alternating-current supply after the normally opened contact of RD1 series contactor KM；RD2 series connection
It is connected between the L2 and N in three-phase alternating-current supply after the normally-closed contact of tentaculum KM；When motor is in halted state, L2, KM,
The circuit RD2 is logical, and water pump stop light RD2 is bright；When the motor is energized, the normally-closed contact of contactor KM disconnects, and normally opened contact closes
It closes, connects the circuit L2, KM, RD1, to keep water pump enabling signal lamp RD1 bright, RD2 goes out.
In use, there are two types of control mode, first is that the manual method of operation, second is that automatic running mode；Manually when operation, press
Lower manual actuation of button SB2, contactor KM coil charging operation, contactor KM coil self-sustaining；Normally opened contact becomes normally closed, motor
Major loop L1/L2/L3, KM connection, motor operation；The circuit L3, SB1, KM, S1 is logical simultaneously, guarantees that contactor KM coil is located always
In electriferous state；It presses manual stop button SB1, SB1 normally-closed contact to disconnect, contactor KM coil losing electricity, major loop disconnects, electricity
Machine stops.
When automatic running side: when 2 water level of top cover reaches high limit, 3 contact S2 normally opened contact of switch closure, contactor KM
Coil voltage charging operation；Contactor KM coil self-sustaining, motor main circuit L1/L2/L3, KM connection, motor operation；Simultaneously
The circuit L3, SB1, KM, S1 also leads to, and guarantees that contactor KM coil is constantly in electriferous state；When water level decreasing to water level lower limit, float
3 contact S1 normally-closed contact of sub switch disconnects, contactor KM coil losing electricity, and major loop disconnects, and motor stops.
When contactor KM electrification or power loss, corresponding normally-open normally-close contact starts corresponding indicator light, visual representation water
Pump operation situation；The utility model is met by simple structure automatically controls 1 start and stop of draining pump, guarantees turbine-generator units top
Lid water level；Prevent water level is excessively high from leading to serious consequence, structure is simple, avoids substantial contribution investment, reduces resource waste；?
Under the premise of guaranteeing safe mass, it can achieve the purpose that give warning in advance, prevent in advance, avoid property loss.
Claims (5)
1. a kind of device of draining pump control top cover of hydraulic turbine set water level, which is characterized in that including being arranged at top cover (2) water level
Draining pump (1)；The water level sensor (6) for sensed water level is additionally provided at top cover (2) water level；Draining pump (1) and water level
Sensor (6) is all connected to control device (4)；Control device (4) connects display device (5)；Control device (4) is passed according to water level
The signal of sensor (6) detection, controls the start and stop of draining pump (1).
2. a kind of device of draining pump control top cover of hydraulic turbine set water level according to claim 1, which is characterized in that described
Control device (4) includes contactor KM and switch (3)；The float of switch (3) is arranged at top cover (2) water level；Three
The normally opened contact of contactor KM is connected between phase AC power source and the motor of draining pump (1)；Coil one end of contactor KM connects
L3 in three-phase alternating-current supply, the other end connect N；Also be in series between contactor KM coil and L3 manual stop button SB1 and
Manual actuation of button SB2；The normally closed contact S1 of switch (3) is connected between contactor KM coil and N；SB2 is upper and couples
The normally opened contact of tentaculum KM is also parallel with the normal opened contact S2 of switch (3).
3. a kind of device of draining pump control top cover of hydraulic turbine set water level according to claim 2, which is characterized in that described
Manual actuation of button SB2 band self-locking device.
4. a kind of device of draining pump control top cover of hydraulic turbine set water level according to claim 2, which is characterized in that described
Enabling signal lamp RD1 is provided on draining pump (1)；Three-phase alternating-current supply is connected to after the normally opened contact of RD1 series contactor KM
In L2 and N between.
5. a kind of device of draining pump control top cover of hydraulic turbine set water level according to claim 2, which is characterized in that described
Draining pump is provided with stop light RD2 on (1)；Three-phase alternating-current supply is connected to after the normally-closed contact of RD2 series contactor KM
In L2 and N between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821214532.5U CN208749603U (en) | 2018-07-30 | 2018-07-30 | A kind of device of draining pump control top cover of hydraulic turbine set water level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821214532.5U CN208749603U (en) | 2018-07-30 | 2018-07-30 | A kind of device of draining pump control top cover of hydraulic turbine set water level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208749603U true CN208749603U (en) | 2019-04-16 |
Family
ID=66059349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821214532.5U Expired - Fee Related CN208749603U (en) | 2018-07-30 | 2018-07-30 | A kind of device of draining pump control top cover of hydraulic turbine set water level |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208749603U (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 |
-
2018
- 2018-07-30 CN CN201821214532.5U patent/CN208749603U/en not_active Expired - Fee Related
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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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: 20190416 |