CN106253581A - Thermal power plant's Generator Stator Cooling water system and on off control method thereof - Google Patents
Thermal power plant's Generator Stator Cooling water system and on off control method thereof Download PDFInfo
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- CN106253581A CN106253581A CN201610860388.1A CN201610860388A CN106253581A CN 106253581 A CN106253581 A CN 106253581A CN 201610860388 A CN201610860388 A CN 201610860388A CN 106253581 A CN106253581 A CN 106253581A
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- cooling water
- stator cooling
- electrically operated
- operated gate
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
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Abstract
The invention provides a kind of thermal power plant's Generator Stator Cooling water system and on off control method thereof, this system includes: stator cooling water case, first stator cooling water pump, second stator cooling water pump, first cooler, second cooler, stator cooling water temperature-sensing valve, stator cooling water flow control valve, stator cooling water strainer for feed water, strainer for feed water bypass Electrically operated gate, ion exchanger, ion exchanger moisturizing Electrically operated gate, ion exchanger moisturizing filter screen, moisturizing filter screen bypass Electrically operated gate, determine cold water storage cistern moisturizing Electrically operated gate, determine cold water storage cistern moisturizing and adjust valve, determine cold water storage cistern moisturizing bypass Electrically operated gate and anti-siphon Electrically operated gate.The present invention can be under Stator Condense Water System full cut-off state, it is achieved the automatic startup of Stator Condense Water System；Under Stator Condense Water System running status, it is achieved being automatically stopped of Stator Condense Water System；Take into account artificial judgement, it is achieved this system program controls the leapfrog of logic and runs.
Description
Technical field
The present invention is about thermal power plant's Generator Stator Cooling technology, cold especially with regard to a kind of thermal power plant generator unit stator
But water system and on off control method thereof.
Background technology
The major function of thermal power plant's Generator Stator Cooling water system is to ensure that cooling water flows through stator coil incessantly
Inside, thus the heat that electricity generator stator coil causes due to loss is taken away, to ensure that the temperature rise of stator coil meets generating
The relevant requirement that machine runs.But, existing thermal power plant Generator Stator Cooling water system is under full cut-off state, it is impossible to it is fixed to realize
The automatic startup of son cooling water；Also cannot be under Stator Condense Water System running status, it is achieved Stator Condense Water System automatic
Stop；And when Stator Condense Water System startup program is carried out to a certain step, if this step sequence condition is unsatisfactory for, it is impossible to make startup
Program continues to run with.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of thermal power plant's Generator Stator Cooling water system and start and stop thereof
Control method.
One aspect of the present invention provides a kind of thermal power plant Generator Stator Cooling water system, described thermal power plant generator unit stator
Cooling water system includes: stator cooling water case, the first stator cooling water pump, the second stator cooling water pump, the first cooler, second
Cooler, stator cooling water temperature-sensing valve, stator cooling water flow control valve, stator cooling water strainer for feed water, strainer for feed water bypass
Electrically operated gate, ion exchanger, ion exchanger moisturizing Electrically operated gate, ion exchanger moisturizing filter screen, moisturizing filter screen bypass Electrically operated gate,
Determine cold water storage cistern moisturizing Electrically operated gate, determine cold water storage cistern moisturizing and adjust valve, determine cold water storage cistern moisturizing and bypass Electrically operated gate and anti-siphon Electrically operated gate；
Described stator cooling water case is connected with the return pipe of electricity generator stator coil by two-way pipeline, a pipe wherein
Being sequentially provided with anti-siphonage pipe throttle orifice and anti-siphon Electrically operated gate on road, described stator cooling water case is regained by another back of pipeline
Water；
Described first stator cooling water pump, the second stator cooling water parallel connection of pumps are passed through with described stator cooling water case after connecting
Pipeline connects；It is respectively equipped with entrance electronic at the entrance of described first stator cooling water pump and the entrance of the second stator cooling water pump
Door, is respectively equipped with outlet Electrically operated gate at described first stator cooling water delivery side of pump and the second stator cooling water delivery side of pump；
Described first cooler and the second cooler be connected in parallel an entrance of described stator cooling water temperature-sensing valve with
On pipeline between stator cooling water pump discharge mother's pipe；Described stator cooling water pump discharge mother's pipe is also by pipeline and described stator
Another entrance of cooling water temperature control valve connects；It is respectively equipped with at the entrance of described first cooler and the entrance of the second cooler
Entrance Electrically operated gate, is respectively equipped with outlet Electrically operated gate in the outlet of described first cooler and the outlet of the second cooler；
Described stator cooling water flow control valve, stator cooling water strainer for feed water are successively set on described stator cooling water temperature
On pipeline between the collecting pipe being exported to electricity generator stator coil of control valve；Described strainer for feed water bypass Electrically operated gate is cold with stator
But water strainer for feed water is connected in parallel, being respectively arranged at two ends with entrance Electrically operated gate and exporting electricity at described stator cooling water strainer for feed water
Dynamic door；
Described ion exchanger moisturizing Electrically operated gate, ion exchanger are successively set on going out of described stator cooling water temperature-sensing valve
On the pipeline of mouth extremely described stator cooling water case；Described ion exchanger moisturizing filter screen is connected with ion exchanger by pipeline,
Described moisturizing filter screen bypass Electrically operated gate is connected in parallel with ion exchanger moisturizing filter screen, at described ion exchanger moisturizing filter screen
It is respectively arranged at two ends with entrance Electrically operated gate and outlet Electrically operated gate；
It is described that to be connected to described stator cold after to determine cold water storage cistern moisturizing Electrically operated gate in parallel with bypass Electrically operated gate of determining cold water storage cistern moisturizing
But water tank, described determine cold water storage cistern moisturizing adjust valve be arranged on the described exit determining cold water storage cistern moisturizing Electrically operated gate.
In one embodiment, cooling water one tunnel in described stator cooling water case sequentially passes through the first stator cooling water pump
And/or second cooling water pump, the first cooler and/or the second cooler enter one of described stator cooling water temperature-sensing valve and enter
Mouthful, another road is directly entered described stator cooling water temperature-sensing valve through the first stator cooling water pump and/or the second cooling water pump
Another entrance.
In one embodiment, cooling water one tunnel flowed out from the outlet of described stator cooling water temperature-sensing valve sequentially passes through described
Stator cooling water flow control valve, stator cooling water strainer for feed water and/or strainer for feed water bypass Electrically operated gate enter generator unit stator
The collecting pipe of coil；Another road sequentially pass through described ion exchanger moisturizing Electrically operated gate, ion exchanger enter described stator cold
But water tank.
In one embodiment, the described thermal power plant sub-Stator Condense Water System of generating has two-way moisturizing, and a road is through described fixed
Cold water storage cistern moisturizing Electrically operated gate and/or determine cold water storage cistern moisturizing bypass Electrically operated gate directly mend to described stator cooling water case；Another road warp
Cross described ion exchanger moisturizing filter screen and/or moisturizing filter screen bypass Electrically operated gate is mended to described ion exchanger.
In one embodiment, described thermal power plant Generator Stator Cooling water system also includes: determine cold water storage cistern blowdown manually operated door,
For described stator cooling water case is carried out manual blowdown.
In one embodiment, described thermal power plant Generator Stator Cooling water system also includes: ion exchanger blowdown is manual
Door, for carrying out manual blowdown to described ion exchanger.
In one embodiment, described thermal power plant Generator Stator Cooling water system also includes: Stator Condense Water System program
Control logical button and stator cooling water pump block push button.
Another aspect of the present invention additionally provides the on off control method of a kind of thermal power plant Generator Stator Cooling water system, institute
The on off control method stating thermal power plant's Generator Stator Cooling water system includes:
Judge whether to determine cold water storage cistern moisturizing Electrically operated gate and determine cold water storage cistern moisturizing to adjust valve the most to open, and determine cold water storage cistern moisturizing bypass
Electrically operated gate is closed, and ion exchanger moisturizing Electrically operated gate is left, and the entrance Electrically operated gate of ion exchanger moisturizing filter screen and outlet
Electrically operated gate is opened the most, and moisturizing filter screen bypass Electrically operated gate is closed；If it is not, then send, unlatching is described determines cold water storage cistern moisturizing Electrically operated gate
And determine cold water storage cistern moisturizing adjust valve instruction, and close described determine cold water storage cistern moisturizing bypass Electrically operated gate instruction, and open described in from
The instruction of sub-exchanger moisturizing Electrically operated gate, and open entrance Electrically operated gate and the outlet Electrically operated gate of described ion exchanger moisturizing filter screen
Instruction, and close described moisturizing filter screen bypass Electrically operated gate instruction；
If it is, whether the liquid level judged in stator cooling water case is higher than presetting liquid level；If described stator cooling water case
In liquid level less than described default liquid level, send and determine cold water storage cistern moisturizing adjust valve throwing instruct automatically and close described ion by described
The instruction of exchanger moisturizing Electrically operated gate；
If the liquid level in described stator cooling water case is higher than described default liquid level, it may be judged whether the first stator cooling water pump
Entrance Electrically operated gate and the entrance Electrically operated gate of the second stator cooling water pump the most open, and the first stator cooling water delivery side of pump is electronic
Door and the second stator cooling water delivery side of pump Electrically operated gate the most close, and the entrance Electrically operated gate of the first cooler, outlet Electrically operated gate equal
Open, and the entrance Electrically operated gate of the second cooler, outlet Electrically operated gate are closed the most, and the entrance of stator cooling water strainer for feed water is electronic
Door, outlet Electrically operated gate are opened the most, and strainer for feed water bypass Electrically operated gate is closed, and anti-siphon Electrically operated gate is opened, and stator cooling water
Temperature-sensing valve has been thrown automatically, and stator cooling water flow control valve has been thrown automatically；If it does not, send the described first stator cooling of unlatching
Pump entrance Electrically operated gate and the instruction of the second stator cooling water pump intake Electrically operated gate, and close described first stator cooling water and pump out
Mouth Electrically operated gate and the instruction of the second stator cooling water pump discharge Electrically operated gate, and open described first cooler entrance Electrically operated gate and go out
The instruction of mouthful Electrically operated gate, and close described second cooler entrance Electrically operated gate and the instruction of outlet Electrically operated gate, and open described fixed
Sub-cooling water filter screen entrance Electrically operated gate and the instruction of outlet Electrically operated gate, and close the finger of described strainer for feed water bypass Electrically operated gate
Order, and open the instruction of described anti-siphon Electrically operated gate, and described stator cooling water temperature-sensing valve is thrown instruction automatically, and by described
Instruction automatically thrown by stator cooling water flow control valve；
If it is, judge whether described first stator cooling water pump has been turned on；If described first stator cooling water pump is not
Start, send the instruction starting the first stator cooling water pump；
If described first stator cooling water pump has been turned on, it is judged that whether the pressure of stator cooling water pump discharge mother's pipe is more than
Preset pressure value；
If the pressure of described stator cooling water pump discharge mother's pipe is more than described preset pressure value, it is judged that described first stator
The outlet Electrically operated gate of cooling water pump is opened the most；If described first stator cooling water delivery side of pump Electrically operated gate is not opened, send out
Open the instruction of described first stator cooling water pump discharge Electrically operated gate；
If described first stator cooling water delivery side of pump Electrically operated gate is opened, it may be judged whether put into stator cooling water pump connection
Lock；If stator cooling water pump interlocking does not puts into, send the instruction putting into stator cooling water pump interlocking.
In one embodiment, the on off control method of described thermal power plant Generator Stator Cooling water system also includes:
Judge that electromotor off-the-line the most time delay reach to preset delay time；
If described electromotor off-the-line time delay reach described default delay time, it is judged that stator cooling water pump interlocking is
No have dropped out；If stator cooling water pump interlocking does not exits, send and exit the interlocking instruction of stator cooling water pump；
If stator cooling water pump interlocking has dropped out, it may be judged whether described first stator cooling water pump and the cooling of the second stator
Water pump is the most out of service；If described first stator cooling water pump and/or the second stator cooling water pump are the most out of service, send
The instruction of the first stator cooling water pump out of service and the instruction of the second stator cooling water pump out of service；
If described first stator cooling water pump and the second stator cooling water pump are the most out of service, it may be judged whether described fixed
Sub-cooling water temperature control valve, stator cooling water flow control valve and determine cold water storage cistern moisturizing and adjust valve all to have dropped out automatically operation；If institute
State stator cooling water temperature-sensing valve, stator cooling water flow control valve and determine that cold water storage cistern moisturizing tune valve has at least one not exit certainly
Dynamic run, send and exit stator cooling water temperature-sensing valve and instruct automatically, and exit stator cooling water flow control valve and refer to automatically
Order, and exit determine cold water storage cistern moisturizing adjust valve instruct automatically.
In one embodiment, described default liquid level is 800mm.
In one embodiment, described determine cold water storage cistern moisturizing adjust valve throw automatic setting value be 600mm, described stator cooling water
Automatic setting value thrown by temperature-sensing valve is 40 DEG C, and automatic setting value thrown by described stator cooling water flow control valve is 120t/h.
In one embodiment, described preset pressure value is 0.85MPa.
In one embodiment, described default delay time is 30min.
The beneficial effects of the present invention is: the embodiment of the present invention provide thermal power plant's Generator Stator Cooling water system and
On off control method can be under thermal power plant's Generator Stator Cooling water system full cut-off state, it is achieved Stator Condense Water System from
Dynamic startup；Under thermal power plant's Generator Stator Cooling water system running state, it is achieved being automatically stopped of Stator Condense Water System；And
And take into account artificial judgement, it is possible to achieve thermal power plant's Generator Stator Cooling water system system program controls the leapfrog of logic and runs, and works as journey
When the condition not met of the sequence control a certain step of logic causes step sequence cannot be carried out, can whether can ignore by Rule of judgment artificially
And operate leapfrog action, continue the operation of programed logic until starting complete.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of embodiment of the present invention thermal power plant Generator Stator Cooling water system；
Fig. 2 is the on off control method flow diagram of embodiment of the present invention thermal power plant Generator Stator Cooling water system；
Fig. 3 is the on off control method flow diagram of another embodiment of the present invention thermal power plant Generator Stator Cooling water system.
Drawing reference numeral:
1. the first stator cooling water pump intake Electrically operated gate 2. first stator cooling water pump discharge Electrically operated gate
3. the second stator cooling water pump intake Electrically operated gate 4. second stator cooling water pump discharge Electrically operated gate
5. the first cooler entrance Electrically operated gate 6. first cooler outlet Electrically operated gate
7. the second cooler entrance Electrically operated gate 8. second cooler outlet Electrically operated gate
9. stator cooling water temperature-sensing valve 10. stator cooling water flow control valve
11. stator cooling water strainer for feed water entrance Electrically operated gate 12. stator cooling water strainer for feed water outlet Electrically operated gate
13. stator cooling water water supply road network bypass Electrically operated gate 14. ion exchanger moisturizing Electrically operated gate
15. ion exchanger make-up water percentage web portal Electrically operated gate 16. ion exchanger make-up water percentage net outlet Electrically operated gate
17. ion exchanger make-up water percentage net bypass Electrically operated gate 18. determine cold water storage cistern moisturizing Electrically operated gate
19. determine cold water storage cistern moisturizing adjusts valve 20. to determine cold water storage cistern moisturizing bypass Electrically operated gate
21. anti-siphon Electrically operated gate 22. determine cold water storage cistern blowdown manually operated door
23. ion exchanger blowdown manually operated door 24. first stator cooling water pumps
25. second stator cooling water pump 26. first coolers
27. second cooler 28. anti-siphonage pipe throttle orifices
29. ion exchanger moisturizing filter screen 30. stator cooling water strainer for feed water
31. stator cooling water case 32. ion exchangers
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, thermal power plant's Generator Stator Cooling water system of the embodiment of the present invention include stator cooling water case 31,
First stator cooling water pump the 24, second stator cooling water pump the 25, first cooler the 26, second cooler 27, stator cooling water temperature
Control valve 9, stator cooling water flow control valve 10, stator cooling water strainer for feed water 30, strainer for feed water bypass Electrically operated gate 13, ion are handed over
Parallel operation 32, ion exchanger moisturizing Electrically operated gate 14, ion exchanger moisturizing filter screen 29, moisturizing filter screen bypass Electrically operated gate 17, fixed the coldest
Water tank moisturizing Electrically operated gate 18, determine cold water storage cistern moisturizing and adjust valve 19, determine cold water storage cistern moisturizing and bypass Electrically operated gate 20 and anti-siphon Electrically operated gate 21.
Stator cooling water case 31 is connected with electricity generator stator coil return pipe, wherein on a pipeline by two-way pipeline
Being sequentially provided with anti-siphonage pipe throttle orifice 28 and anti-siphon Electrically operated gate 21, stator cooling water case 31 is regained by another back of pipeline
Water.
During electromotor on-load, stator coil produces heat because of loss, and stator cooling water flows through stator coil hollow core conductor,
Take away heat and play cooling effect.Stator cooling water case 31 reclaims the backwater of the heat content discharged from electricity generator stator coil, and
Water source as stator cooling water pump.
First stator cooling water pump the 24, second stator cooling water pump 25 is connected in parallel afterwards and stator cooling water case passes through pipeline
Connect.Entrance at the first stator cooling water pump 24 is provided with entrance Electrically operated gate 1, and the entrance at the second stator cooling water pump 25 is provided with
Entrance Electrically operated gate 3, is respectively equipped with outlet in the outlet of the first stator cooling water pump 24 and the outlet of the second stator cooling water pump 25
Electrically operated gate 2 and outlet Electrically operated gate 4.
First cooler 26 and the second cooler 27 are connected in an entrance and the stator of stator cooling water temperature-sensing valve 9 in parallel
On pipeline between the female pipe of cooling water pump outlet.Stator cooling water pump discharge mother's pipe is also by pipeline and stator cooling water temperature-sensing valve
Another entrance of 9 connects.It is respectively equipped with entrance Electrically operated gate 5 at the entrance of the first cooler 26 and the entrance of the second cooler 27
And entrance Electrically operated gate 7, it is respectively equipped with outlet Electrically operated gate 6 in the outlet of the first cooler 26 and the outlet of the second cooler 27 and goes out
Mouth Electrically operated gate 8.
Stator cooling water flow control valve 10, stator cooling water strainer for feed water 30 are successively set on stator cooling water temperature-sensing valve
On pipeline between the collecting pipe being exported to electricity generator stator coil of 9.Strainer for feed water bypass Electrically operated gate 13 and stator cooling water
Strainer for feed water 30 is connected in parallel, being respectively arranged at two ends with entrance Electrically operated gate 11 and exporting electronic at stator cooling water strainer for feed water 30
Door 12.
Ion exchanger moisturizing Electrically operated gate 14 and ion exchanger 32 are successively set on the outlet of stator cooling water temperature-sensing valve 9
To the pipeline of stator cooling water case 31.Ion exchanger moisturizing filter screen 29 is connected with ion exchanger 32 by pipeline, moisturizing
Filter screen bypass Electrically operated gate 17 is connected in parallel with ion exchanger moisturizing filter screen 29, divides at the two ends of ion exchanger moisturizing filter screen 29
It is not provided with entrance Electrically operated gate 15 and outlet Electrically operated gate 16.
Determine cold water storage cistern moisturizing Electrically operated gate 18 with determine cold water storage cistern moisturizing bypass Electrically operated gate 20 in parallel after be connected to stator cooling water
Case 31, determines cold water storage cistern moisturizing and adjusts valve 20 to be arranged on the exit determining cold water storage cistern moisturizing Electrically operated gate 18.
As it is shown in figure 1, embodiment of the present invention thermal power plant Generator Stator Cooling water system is additionally provided with other necessity
Pipeline, valve and relevant thermal technology's measuring point etc..
Utilizing thermal power plant's Generator Stator Cooling water system that the embodiment of the present invention provides, its major function is to ensure that cooling
Water flows through inside stator coil incessantly, thus is taken away by the heat that electricity generator stator coil causes due to loss, to ensure
The temperature rise of stator coil meets the related request of generator operation.Meanwhile, this Stator Condense Water System also achieves and determines entering
The pressure of the water of subcoil, temperature, flow, the isoparametric control of electric conductivity of water so that it is operating index meets design requirement.Fixed
The cooling water boosting of output in stator cooling water case is got by sub-cooling water pump 24 and/or 25, stator cooling water temperature-sensing valve 9 control
The system part cooling cooled device of current 26 and/or 27 heat exchange cooling.The water sub-fraction warp of stator cooling water temperature-sensing valve 9 output
Cross ion exchanger 32 and be back to stator cooling water case 31, reduce electrical conductivity；Major part is through stator cooling water flow control valve
10, stator cooling water flow control valve 10 filter miscellaneous through stator cooling water strainer for feed water 30 again after controlling cooling water flow
Matter, enters the collecting pipe of electricity generator stator coil, is taken out of by the heat of electricity generator stator coil and return stator cooling water case 31,
Complete a closed cycle.Stator Condense Water System in the embodiment of the present invention has two-way moisturizing, a road directly to mend to stator cold
But water tank 31, are generally used for starting moisturizing and emergency water compensating；An other road is mended to ion exchanger 32, belongs to properly functioning benefit
Water.The anti-siphon Electrically operated gate 21 of Stator Condense Water System for the pressure of balanced water returning pipe with stator cooling water case 31, prevent be
System moment cuts off the water supply the siphonic effect caused, and protects electromotor not overtemperature.
In one embodiment, cooling water one tunnel in stator cooling water case 31 sequentially passes through the first stator cooling water pump 24
(or second cooling water pump 25), the first cooler 26 (or second cooler 27) enter the one of stator cooling water temperature-sensing valve 9
Individual entrance, another road is directly entered stator cooling water temperature control through the first stator cooling water pump 24 (or second cooling water pump 25)
Another entrance of valve 9.First stator cooling water pump 24 is the most standby with the second stator cooling water pump 25, but pledges love one
Under condition, it is also possible to come into operation simultaneously.In like manner, the first cooler 26 and the second cooler 27 can also be the most standby, it is also possible to
Come into operation simultaneously.
The cooling water entering stator cooling water temperature-sensing valve 9 flows out, from the outlet stream of stator cooling water temperature-sensing valve 9 from its outlet
Cooling water one tunnel gone out sequentially passes through stator cooling water flow control valve 10, stator cooling water strainer for feed water 30 (or filter of supplying water
Net bypass Electrically operated gate 13) enter electricity generator stator coil collecting pipe, another road sequentially passes through ion exchanger moisturizing Electrically operated gate
14, ion exchanger 32 enters stator cooling water case 31.
Above-mentioned stator cooling water temperature-sensing valve 9 can be a valve adjustable three-way valve of folding amplitude, can be by regulation
The folding amplitude of valve regulates the temperature of water further.
In one embodiment, the sub-Stator Condense Water System of embodiment of the present invention thermal power plant generating has two-way moisturizing, a road warp
Cross and determine cold water storage cistern moisturizing Electrically operated gate 18 (or determining cold water storage cistern moisturizing bypass Electrically operated gate 20) and directly mend to stator cooling water case 31, separately
One tunnel is mended to ion exchanger 32, through passing through through ion exchanger moisturizing filter screen 29 (or moisturizing filter screen bypass Electrically operated gate 17)
Ion exchanger 32 flows into stator cooling water case 31, reduces the conductivity of water.
Normally, the thermal power plant's Generator Stator Cooling water system in the embodiment of the present invention also includes determining cold water storage cistern blowdown hands
Dynamic door 22, for carrying out manual blowdown when system is out of service to stator cooling water case 31.
Thermal power plant's Generator Stator Cooling water system in the embodiment of the present invention also includes that an ion exchanger blowdown is manual
Door 32, for ion exchanger 32 is carried out manual blowdown, carries out needing example exchanger moisturizing Electrically operated gate during manual blowdown
14 close, or carry out blowdown after system is out of service again.
In one embodiment, above-mentioned thermal power plant's Generator Stator Cooling water system also includes Stator Condense Water System program
Control logical button A1 and stator cooling water pump block push button A2.
Utilize above-mentioned block push button, can automatically the first stator cooling water pump 24 and the second stator cooling water pump 25 be put into
Equipment interlocking.After interlocking puts into, if a wherein unit trip, another equipment can interlocked startup rapidly, maintenance system
Properly functioning.
The embodiment of the present invention additionally provides the on off control method of a kind of thermal power plant Generator Stator Cooling water system, and this opens
The executive agent of stop control method can be computer system etc..As in figure 2 it is shown, this on off control method includes:
Step S1, judge whether 1. to determine cold water storage cistern moisturizing Electrically operated gate 18 and determine cold water storage cistern moisturizing and adjust valve 19 the most to open, 2. and
Determine cold water storage cistern moisturizing bypass Electrically operated gate 20 to close, 3. and ion exchanger moisturizing Electrically operated gate 14 is left, 4. and ion exchanger is mended
5. and moisturizing filter screen bypass Electrically operated gate 17 is closed the entrance Electrically operated gate 15 of water screen 29 and outlet Electrically operated gate 16 are opened the most,.If
In above-mentioned condition, any one condition is unsatisfactory for, then carry out step S2, sends unlatching and determines cold water storage cistern moisturizing Electrically operated gate 18 and determine cold
The instruction of valve 19 is adjusted in water tank moisturizing, and closes the instruction determining cold water storage cistern moisturizing bypass Electrically operated gate 20, and opens ion exchanger benefit
The instruction of water Electrically operated gate 14, and open entrance Electrically operated gate 15 and the finger of outlet Electrically operated gate 16 of ion exchanger moisturizing filter screen 29
Order, and close the instruction of moisturizing filter screen bypass Electrically operated gate 17.If the Electrically operated gate should opened in step S1 is originally opened
, the open command that receives in the most negligible step S2；If the Electrically operated gate should closed in step S1 is originally closed
, the out code that receives in the most negligible step S2, lower with.If above-mentioned 5 conditions meet simultaneously, then carry out step
S3。
Whether step S3, the liquid level judged in stator cooling water case 31 are higher than default liquid level.If stator cooling water case 31
Interior liquid level is less than presets liquid level, sends and adjusts valve 19 to throw automatic instruction and closedown ion exchanger moisturizing by determining cold water storage cistern moisturizing
The instruction (step S4) of Electrically operated gate 14.If the liquid level in stator cooling water case 31 is higher than presetting liquid level, then carry out step S5.
In one embodiment, above-mentioned default liquid level is 800mm, determines cold water storage cistern moisturizing and adjusts valve 19 to throw automatic setting value and be
600mm。
Step S5, the entrance Electrically operated gate 1 judging whether 1. the first stator cooling water pump 24 and the second stator cooling water pump 25
Entrance Electrically operated gate 3 2. and the outlet Electrically operated gate 2 of the first stator cooling water pump 24 and the second stator cooling water pump 25 the most open,
Outlet Electrically operated gate 4 is closed the most, 3. and the entrance Electrically operated gate 5 of the first cooler 26, outlet Electrically operated gate 6 are opened the most, 4. and second cold
But device 27 entrance Electrically operated gate 7, outlet Electrically operated gate 8 the most close, 5. and the entrance Electrically operated gate 11 of stator cooling water strainer for feed water 30,
Outlet Electrically operated gate 12 is opened the most, 6. and strainer for feed water bypass Electrically operated gate 13 is closed, 7. and anti-siphon Electrically operated gate 21 is opened, 8. and fixed
9. and stator cooling water flow control valve 10 has been thrown automatically sub-cooling water temperature control valve 9 has been thrown automatically,.If in above-mentioned 9 conditions
There is a condition to be unsatisfactory for, then send entrance Electrically operated gate 1 and the second stator cooling water pump opening the first stator cooling water pump 24
The instruction of the entrance Electrically operated gate 3 of 25, and close outlet Electrically operated gate 2 and the second stator cooling water pump of the first stator cooling water pump 24
The instruction of the outlet Electrically operated gate 4 of 25, and open entrance Electrically operated gate 5 and the instruction of outlet Electrically operated gate 6 of the first cooler 26, and close
Close entrance Electrically operated gate 7 and the instruction of outlet Electrically operated gate 8 of the second cooler 27, and open entering of stator cooling water strainer for feed water 30
Mouth Electrically operated gate 11 and the instruction of outlet Electrically operated gate 12, and close the instruction of strainer for feed water bypass Electrically operated gate 13, and open anti-siphon
The instruction of Electrically operated gate 21, and stator cooling water temperature-sensing valve 9 is thrown instruction automatically, and stator cooling water flow control valve 10 is thrown
Instruction (step S6) automatically.If above-mentioned 9 conditions meet simultaneously, then carry out step S7.
Before opening stator cooling water pump 24 or 25, it usually needs water delivery side of pump Electrically operated gate is closed, so may be used
The start-up course making cooling water pump is more smooth and easy.
In one embodiment, automatic setting value thrown by stator cooling water temperature-sensing valve 9 is 40 DEG C, stator cooling water flow control valve
The 10 automatic setting values of throwing are 120t/h, and unit t/h represents flow hourly (ton).
Step S7, judge whether the first stator cooling water pump 24 has been turned on.If the first stator cooling water pump 24 is not actuated,
Send the instruction (step S8) starting the first stator cooling water pump 24.If the first stator cooling water pump 24 has been turned on, walk
Rapid S9.The embodiment of the present invention is only with the first cooling water pump 24 for the pump run time properly functioning, and the second cooling water pump 25 is as the
One cooling water pump 24 standby as a example by illustrate, be not intended to limitation of the present invention, when reality is applied, first cooling water
Pump 24 can be the most standby with the second cooling water pump 25.
Step S9, judge that the pressure of stator cooling water pump discharge mother's pipe is whether more than preset pressure value.If stator cools down
The pressure of exit of pump mother's pipe is more than preset pressure value, then carry out step S10.
In one embodiment, above-mentioned preset pressure value generally takes 0.85MPa.
Step S10, judge that the outlet Electrically operated gate 2 of the first stator cooling water pump 24 is opened the most, if the first stator cooling
The outlet Electrically operated gate 2 of water pump 24 is not opened, and sends the instruction (step of the outlet Electrically operated gate 2 opening the first stator cooling water pump 24
S11).If the outlet Electrically operated gate 2 of the first stator cooling water pump 24 is opened, then enter step step S12.
Step 12, judge whether to put into stator cooling water pump interlocking, as fruit cooling water pump interlocking does not puts into, send throwing
Enter the instruction (step 13) of stator cooling water pump interlocking.
On off control method shown in Fig. 2 is for controlling the startup of thermal power plant's Generator Stator Cooling water system, therefore Fig. 2 institute
The on off control method shown is properly termed as the startup step sequence of thermal power plant's Generator Stator Cooling water system.
The purpose of step S1～step S4 is that Stator Condense Water System is carried out moisturizing, leads up to stator cooling water case 31
Directly moisturizing, leads up to ion exchanger 32 moisturizing.Step S5, step S6 purpose are the pipes of conducting Stator Condense Water System
Road, in stator cooling water case 31, water out is after the first stator cooling water pump 24 boosting, sequentially passes through cooler 26, stator
Cooling water temperature control valve 9, a part is back to stator cooling water case 31 via ion exchanger 32, and major part is through stator cooling water
Flow control valve 10 arrives electricity generator stator coil entrance through stator cooling water strainer for feed water 30 again, is finally exported by stator coil
It is back to stator cold water storage cistern 31, completes a closed loop cycle.Step S7～step 13 purpose have been opening of stator cooling water pump
Dynamic and interlocking is devoted oneself to work.
The embodiment of the present invention also provides for the on off control method of a kind of thermal power plant Generator Stator Cooling water system, these start and stop
The executive agent of control method can be computer system etc..As it is shown on figure 3, this on off control method mainly includes following step
Rapid:
Step S20, judge electromotor off-the-line the most time delay reach preset delay time.If electromotor off-the-line is also
Time delay reaches described default delay time, carries out step S21.
Usually, default delay time generally takes 30min.
Step S21, judge stator cooling water pump interlocking whether have dropped out.If stator cooling water pump interlocking does not exits, send out
Go out to exit stator cooling water pump interlocking instruction (step S22).If stator cooling water pump interlocking has dropped out, carry out step S23.
Step S23, judge that the first stator cooling water pump 24 and the second stator cooling water pump 25 are the most out of service.As
Really the first stator cooling water pump 24 or the second stator cooling water pump 25 are the most out of service, or two stator cooling water pumps all do not stop
Only run, then send instruction and the finger of the second stator cooling water pump 25 out of service of the first stator cooling water pump 24 out of service
Make (step S24).If two stator cooling water pumps are the most out of service, carry out step S25.
Step S25, judge stator cooling water temperature-sensing valve 9, stator cooling water flow control valve 10 and determine cold water storage cistern moisturizing adjust
Valve 19 the most all has dropped out operation automatically.If stator cooling water temperature-sensing valve 9, stator cooling water flow control valve 10 and determine cold water
Case moisturizing is adjusted in valve 19 any one or multiple is not exited operation automatically, sends and exits stator cooling water temperature-sensing valve 9 and automatically transport
The instruction of row, and exits the instruction that stator cooling water flow control valve 10 runs automatically, and exits and determine cold water storage cistern moisturizing and adjust valve 19
Automatically the instruction (step S26) run.
On off control method shown in Fig. 3 is for controlling the stopping of thermal power plant's Generator Stator Cooling water system, therefore Fig. 3 institute
The on off control method shown is properly termed as the stopping step of thermal power plant's Generator Stator Cooling water system.
On off control method shown in Fig. 2 and Fig. 3 is embodiment of the present invention moderate heat power generator Stator Condense Water System
Programed logic.Utilize this programed logic can realize following functions: in thermal power plant's Generator Stator Cooling water system
Under system full cut-off state, it is achieved the automatic startup of Stator Condense Water System；Shape is run in thermal power plant's Generator Stator Cooling water system
Under state, it is achieved being automatically stopped of Stator Condense Water System；When the startup program of thermal power plant's Generator Stator Cooling water system is run
During to a certain step, condition is unsatisfactory for, if artificially judging that this condition can be ignored, then can manually carry out leapfrog action and continue to start
The operation of program, until Stator Condense Water System starts complete.
Each step of the on off control method shown in Fig. 2 and Fig. 3, first judges whether feedback receives, if received, continues
Continue and carry out next step；If do not received, then etc. to be feedback receive.When not receiving due feedback signal, programed logic
This step can be rested on, wait manual operation.Power plant operations staff can find current and run the step unreceived feedback signal of sequence, people
For judging whether unreceived feedback signal affects continuing executing with of program programed logic.Work as if this feedback signal does not affect
Proceeding of front programed logic, operations staff can operate leapfrog action and continue the execution of programed logic；If should
Feedback signal affects present procedure and controls proceeding of logic, then operations staff can be unsatisfied according to each found
Feedback signal, goes investigation problem targetedly, until receiving this feedback signal, continues executing with programed logic.
By the on off control method in Fig. 2 and Fig. 3, can be in thermal power plant's Generator Stator Cooling water system full cut-off state
Under, it is achieved the automatic startup of Generator Stator Cooling water system；Under thermal power plant's Generator Stator Cooling water system running state,
Realize being automatically stopped of Generator Stator Cooling water system.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the reality in terms of the present invention can use complete hardware embodiment, complete software implementation or combine software and hardware
Execute the form of example.And, the present invention can use at one or more computers wherein including computer usable program code
The upper computer program product implemented of usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.)
The form of product.
The present invention is with reference to method, equipment (system) and the flow process of computer program according to embodiments of the present invention
Figure and/or block diagram describe.It should be understood that can the most first-class by computer program instructions flowchart and/or block diagram
Flow process in journey and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
Instruction arrives the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce
A raw machine so that the instruction performed by the processor of computer or other programmable data processing device is produced for real
The device of the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame now.
These computer program instructions may be alternatively stored in and computer or other programmable data processing device can be guided with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in this computer-readable memory produces and includes referring to
Make the manufacture of device, this command device realize at one flow process of flow chart or multiple flow process and/or one square frame of block diagram or
The function specified in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing device so that at meter
Perform sequence of operations step on calculation machine or other programmable devices to produce computer implemented process, thus at computer or
The instruction performed on other programmable devices provides for realizing at one flow process of flow chart or multiple flow process and/or block diagram one
The step of the function specified in individual square frame or multiple square frame.
The present invention applies specific embodiment principle and the embodiment of the present invention are set forth, above example
Explanation be only intended to help to understand method and the core concept thereof of the present invention；Simultaneously for one of ordinary skill in the art,
According to the thought of the present invention, the most all will change, in sum, in this specification
Hold and should not be construed as limitation of the present invention.
Claims (13)
1. thermal power plant's Generator Stator Cooling water system, it is characterised in that described thermal power plant Generator Stator Cooling water system
System includes: stator cooling water case, the first stator cooling water pump, the second stator cooling water pump, the first cooler, the second cooler,
Stator cooling water temperature-sensing valve, stator cooling water flow control valve, stator cooling water strainer for feed water, strainer for feed water bypass Electrically operated gate,
Ion exchanger, ion exchanger moisturizing Electrically operated gate, ion exchanger moisturizing filter screen, moisturizing filter screen bypass Electrically operated gate, determine cold water
Case moisturizing Electrically operated gate, determine cold water storage cistern moisturizing and adjust valve, determine cold water storage cistern moisturizing and bypass Electrically operated gate and anti-siphon Electrically operated gate；
Described stator cooling water case is connected with the return pipe of electricity generator stator coil, wherein on a pipeline by two-way pipeline
Being sequentially provided with anti-siphonage pipe throttle orifice and anti-siphon Electrically operated gate, described stator cooling water case regains water by another back of pipeline；
Described first stator cooling water pump, the second stator cooling water parallel connection of pumps pass through pipeline with described stator cooling water case after connecting
Connect；It is respectively equipped with entrance Electrically operated gate at the entrance of described first stator cooling water pump and the entrance of the second stator cooling water pump,
It is respectively equipped with outlet Electrically operated gate at described first stator cooling water delivery side of pump and the second stator cooling water delivery side of pump；
Described first cooler and the second cooler are connected in an entrance and the stator of described stator cooling water temperature-sensing valve in parallel
On pipeline between the female pipe of cooling water pump outlet；Described stator cooling water pump discharge mother's pipe cools down with described stator also by pipeline
Another entrance of water temperature-sensing valve connects；It is respectively equipped with entrance at the entrance of described first cooler and the entrance of the second cooler
Electrically operated gate, is respectively equipped with outlet Electrically operated gate in the outlet of described first cooler and the outlet of the second cooler；
Described stator cooling water flow control valve, stator cooling water strainer for feed water are successively set on described stator cooling water temperature-sensing valve
The collecting pipe being exported to electricity generator stator coil between pipeline on；Described strainer for feed water bypass Electrically operated gate and stator cooling water
Strainer for feed water is connected in parallel, being respectively arranged at two ends with entrance Electrically operated gate and exporting electronic at described stator cooling water strainer for feed water
Door；
Described ion exchanger moisturizing Electrically operated gate, ion exchanger are successively set on being exported to of described stator cooling water temperature-sensing valve
On the pipeline of described stator cooling water case；Described ion exchanger moisturizing filter screen is connected with ion exchanger by pipeline, described
Moisturizing filter screen bypass Electrically operated gate is connected in parallel with ion exchanger moisturizing filter screen, at the two ends of described ion exchanger moisturizing filter screen
It is respectively equipped with entrance Electrically operated gate and outlet Electrically operated gate；
Described determine cold water storage cistern moisturizing Electrically operated gate with determine cold water storage cistern moisturizing bypass Electrically operated gate in parallel after be connected to described stator cooling water
Case, described determine cold water storage cistern moisturizing adjust valve be arranged on the described exit determining cold water storage cistern moisturizing Electrically operated gate.
Thermal power plant the most according to claim 1 Generator Stator Cooling water system, it is characterised in that described stator cooling water
Cooling water one tunnel in case sequentially passes through the first stator cooling water pump and/or the second cooling water pump, the first cooler and/or second
Cooler enters an entrance of described stator cooling water temperature-sensing valve, and another road is through the first stator cooling water pump and/or second
Cooling water pump is directly entered another entrance of described stator cooling water temperature-sensing valve.
Thermal power plant the most according to claim 1 and 2 Generator Stator Cooling water system, it is characterised in that from described stator
Cooling water one tunnel that the outlet of cooling water temperature control valve is flowed out sequentially passes through described stator cooling water flow control valve, stator cooling water
Strainer for feed water and/or strainer for feed water bypass Electrically operated gate enter the collecting pipe of electricity generator stator coil；Another road sequentially passes through described
Ion exchanger moisturizing Electrically operated gate, ion exchanger enter described stator cooling water case.
Thermal power plant the most according to claim 1 Generator Stator Cooling water system, it is characterised in that described thermal power plant generates electricity
Sub-Stator Condense Water System has two-way moisturizing, and a road is determined cold water storage cistern moisturizing Electrically operated gate through described and/or determine by cold water storage cistern moisturizing
Road Electrically operated gate is directly mended to described stator cooling water case；Another road is filtered through described ion exchanger moisturizing filter screen and/or moisturizing
Net bypass Electrically operated gate is mended to described ion exchanger.
Thermal power plant the most according to claim 1 Generator Stator Cooling water system, it is characterised in that described thermal power plant generates electricity
Machine stator cooling water system also includes: determine cold water storage cistern blowdown manually operated door, for described stator cooling water case is carried out manual blowdown.
Thermal power plant the most according to claim 1 Generator Stator Cooling water system, it is characterised in that described thermal power plant generates electricity
Machine stator cooling water system also includes: ion exchanger blowdown manually operated door, for described ion exchanger is carried out manual blowdown.
Thermal power plant the most according to claim 1 Generator Stator Cooling water system, it is characterised in that described thermal power plant generates electricity
Machine stator cooling water system also includes: Stator Condense Water System programed logic button and stator cooling water pump block push button.
8. the on off control method of thermal power plant's Generator Stator Cooling water system, it is characterised in that described thermal power plant generates electricity
The on off control method of machine stator cooling water system includes:
Judge whether to determine cold water storage cistern moisturizing Electrically operated gate and determine cold water storage cistern moisturizing to adjust valve the most to open, and it is electronic to determine cold water storage cistern moisturizing bypass
Door closes, and ion exchanger moisturizing Electrically operated gate is left, and the entrance Electrically operated gate of ion exchanger moisturizing filter screen and export electronic
Men Junyi opens, and moisturizing filter screen bypass Electrically operated gate is closed；If it is not, then send, unlatching is described to be determined cold water storage cistern moisturizing Electrically operated gate and determines
The instruction of valve is adjusted in cold water storage cistern moisturizing, and closes the described instruction determining cold water storage cistern moisturizing bypass Electrically operated gate, and opens the friendship of described ion
The instruction of parallel operation moisturizing Electrically operated gate, and open entrance Electrically operated gate and the finger of outlet Electrically operated gate of described ion exchanger moisturizing filter screen
Order, and close the instruction of described moisturizing filter screen bypass Electrically operated gate；
If it is, whether the liquid level judged in stator cooling water case is higher than presetting liquid level；If in described stator cooling water case
Liquid level be less than described default liquid level, send by described determine cold water storage cistern moisturizing adjust valve throw instruct automatically and close described ion exchange
The instruction of device moisturizing Electrically operated gate；
If the liquid level in described stator cooling water case is higher than described default liquid level, it may be judged whether entering of the first stator cooling water pump
The entrance Electrically operated gate of mouthful Electrically operated gate and the second stator cooling water pump is opened the most, and the first stator cooling water delivery side of pump Electrically operated gate and
Second stator cooling water delivery side of pump Electrically operated gate is closed the most, and the entrance Electrically operated gate of the first cooler, outlet Electrically operated gate are opened the most,
And the second entrance Electrically operated gate of cooler, outlet Electrically operated gate the most close, and the entrance Electrically operated gate of stator cooling water strainer for feed water, go out
Mouth Electrically operated gate is opened the most, and strainer for feed water bypass Electrically operated gate is closed, and anti-siphon Electrically operated gate is opened, and stator cooling water temperature-sensing valve
Throw automatically, and stator cooling water flow control valve has been thrown automatically；Pump into if it does not, send described first stator cooling water of unlatching
Mouth Electrically operated gate and the instruction of the second stator cooling water pump intake Electrically operated gate, and it is electronic to close described first stator cooling water pump discharge
Door and the instruction of the second stator cooling water pump discharge Electrically operated gate, and open described first cooler entrance Electrically operated gate and export electronic
The instruction of door, and close described second cooler entrance Electrically operated gate and the instruction of outlet Electrically operated gate, and open the cooling of described stator
Water strainer for feed water entrance Electrically operated gate and the instruction of outlet Electrically operated gate, and close the instruction of described strainer for feed water bypass Electrically operated gate, and
Open the instruction of described anti-siphon Electrically operated gate, and described stator cooling water temperature-sensing valve is thrown instruction automatically, and by described stator
Instruction automatically thrown by cooling water flow regulation valve；
If it is, judge whether described first stator cooling water pump has been turned on；If described first stator cooling water pump is not actuated,
Send the instruction starting the first stator cooling water pump；
If described first stator cooling water pump has been turned on, it is judged that whether the pressure of stator cooling water pump discharge mother's pipe is more than presetting
Force value；
If the pressure of described stator cooling water pump discharge mother's pipe is more than described preset pressure value, it is judged that described first stator cooling
Water delivery side of pump Electrically operated gate is opened the most；If described first stator cooling water delivery side of pump Electrically operated gate is not opened, send unlatching institute
State the instruction of the first stator cooling water pump discharge Electrically operated gate；
If described first stator cooling water delivery side of pump Electrically operated gate is opened, it may be judged whether put into stator cooling water pump interlocking；
If stator cooling water pump interlocking does not puts into, send the instruction putting into stator cooling water pump interlocking.
The on off control method of thermal power plant the most according to claim 8 Generator Stator Cooling water system, it is characterised in that
The on off control method of described thermal power plant Generator Stator Cooling water system also includes:
Judge that electromotor off-the-line the most time delay reach to preset delay time；
If described electromotor off-the-line time delay reach described default delay time, it is judged that stator cooling water pump has been interlocked the most
Exit；If stator cooling water pump interlocking does not exits, send and exit the interlocking instruction of stator cooling water pump；
If stator cooling water pump interlocking has dropped out, it may be judged whether described first stator cooling water pump and the second stator cooling water pump
The most out of service；If described first stator cooling water pump and/or the second stator cooling water pump are the most out of service, send stopping
Run instruction and the instruction of the second stator cooling water pump out of service of the first stator cooling water pump；
If described first stator cooling water pump and the second stator cooling water pump are the most out of service, it may be judged whether described stator is cold
But water temperature-sensing valve, stator cooling water flow control valve and determine cold water storage cistern moisturizing and adjust valve all to have dropped out automatically operation；If it is described fixed
Sub-cooling water temperature control valve, stator cooling water flow control valve and determine cold water storage cistern moisturizing and adjust in valve and have at least one not exit fortune automatically
OK, send and exit stator cooling water temperature-sensing valve and instruct automatically, and exit stator cooling water flow control valve and instruct automatically, and
Exit determine cold water storage cistern moisturizing adjust valve instruct automatically.
The on off control method of thermal power plant the most according to claim 8 Generator Stator Cooling water system, its feature exists
In, described default liquid level is 800mm.
The on off control method of 11. thermal power plant according to claim 8 Generator Stator Cooling water systems, its feature exists
In, described determine cold water storage cistern moisturizing to adjust valve to throw automatic setting value be 600mm, and described stator cooling water temperature-sensing valve is thrown and set automatically
Value is 40 DEG C, and automatic setting value thrown by described stator cooling water flow control valve is 120t/h.
The on off control method of 12. thermal power plant according to claim 8 Generator Stator Cooling water systems, its feature exists
In, described preset pressure value is 0.85MPa.
The on off control method of 13. thermal power plant according to claim 9 Generator Stator Cooling water systems, its feature exists
In, described default delay time is 30min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610860388.1A CN106253581B (en) | 2016-09-28 | 2016-09-28 | Thermal power plant's Generator Stator Cooling water system and its start-up and shut-down control method |
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|---|---|---|---|
| CN201610860388.1A CN106253581B (en) | 2016-09-28 | 2016-09-28 | Thermal power plant's Generator Stator Cooling water system and its start-up and shut-down control method |
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| CN106253581A true CN106253581A (en) | 2016-12-21 |
| CN106253581B CN106253581B (en) | 2018-09-07 |
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| CN201610860388.1A Active CN106253581B (en) | 2016-09-28 | 2016-09-28 | Thermal power plant's Generator Stator Cooling water system and its start-up and shut-down control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109120105A (en) * | 2018-09-29 | 2019-01-01 | 东方电机控制设备有限公司 | A kind of Generator Stator Cooling water system anti-siphon means |
| CN111431347A (en) * | 2020-02-20 | 2020-07-17 | 华电电力科学研究院有限公司 | Rotor cooling water system and start-stop control method thereof |
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| CN206023498U (en) * | 2016-09-28 | 2017-03-15 | 华北电力科学研究院有限责任公司 | Thermal power plant's Generator Stator Cooling water system |
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| DE3027322A1 (en) * | 1980-07-18 | 1982-02-18 | Siemens AG, 1000 Berlin und 8000 München | COOLING ARRANGEMENT AND METHOD FOR OPERATING THE ARRANGEMENT |
| CN105806012A (en) * | 2014-12-31 | 2016-07-27 | 国家电网公司 | Circulating cooling water system for gas-fired thermal power plant and start and stop control method of circulating cooling water system |
| CN206023498U (en) * | 2016-09-28 | 2017-03-15 | 华北电力科学研究院有限责任公司 | Thermal power plant's Generator Stator Cooling water system |
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| CN109120105A (en) * | 2018-09-29 | 2019-01-01 | 东方电机控制设备有限公司 | A kind of Generator Stator Cooling water system anti-siphon means |
| CN109120105B (en) * | 2018-09-29 | 2024-02-20 | 东方电气自动控制工程有限公司 | Anti-siphon device of generator stator cooling water system |
| CN111431347A (en) * | 2020-02-20 | 2020-07-17 | 华电电力科学研究院有限公司 | Rotor cooling water system and start-stop control method thereof |
| CN111431347B (en) * | 2020-02-20 | 2021-11-16 | 华电电力科学研究院有限公司 | Rotor cooling water system and start-stop control method thereof |
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