CN105807803B - Gas power station closed cooling water system and its start-up and shut-down control method - Google Patents
Gas power station closed cooling water system and its start-up and shut-down control method Download PDFInfo
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- CN105807803B CN105807803B CN201410853319.9A CN201410853319A CN105807803B CN 105807803 B CN105807803 B CN 105807803B CN 201410853319 A CN201410853319 A CN 201410853319A CN 105807803 B CN105807803 B CN 105807803B
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- 239000000498 cooling water Substances 0.000 title claims abstract description 272
- 238000000034 method Methods 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 398
- 230000009182 swimming Effects 0.000 claims abstract description 23
- 230000002195 synergetic effect Effects 0.000 claims abstract description 21
- 239000012267 brine Substances 0.000 claims abstract description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000002955 isolation Methods 0.000 claims description 6
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 23
- 239000002918 waste heat Substances 0.000 description 17
- 230000003020 moisturizing effect Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 11
- 238000004590 computer program Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 7
- 239000003245 coal Substances 0.000 description 6
- 230000008676 import Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 241000242583 Scyphozoa Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Abstract
The present invention provides a kind of gas power station closed cooling water system and its start-up and shut-down control method, the start-up and shut-down control method includes：It closes ability of swimming synergic system starting step, unit optimum selection step, the starting step that puts into operation and system and stops step；Before closing ability of swimming synergic system starting step, need to judge whether demineralized water main-piping pressure is more than that 0.2MPa, closed cycle water pump whether has preselected and described two drag whether a closed cooling water system or the one-to-one closed cooling water system have preselected, if brine main-piping pressure is more than, 0.2MPa, closed cycle water pump has preselected and described two drag a closed cooling water system or the one-to-one closed cooling water system to preselect, and ability of swimming synergic system starting step is closed described in progress.Through the invention, the automatic startup of closed cooling water system can be realized under closed cooling water system full cut-off state or under the starting state of part, original operating status when interference sections do not start；Being automatically stopped for closed cooling water system is realized under operation.
Description
Technical field
The present invention relates to gas power station enclosed cooling water technologies, are cooled down especially with regard to a kind of gas power station enclosed
Water system and its start-up and shut-down control method.
Background technology
The effect of gas power station closed cooling water system be for gas power station subsidiary engine equipment provide water quality requirement compared with
The high and smaller cooling water source of water consumption generally uses demineralized water or condensed water.Existing closed cooling water system cannot achieve
Automation under gas power station closed cooling water system full cut-off state starts and runs the stopping of the automation under state.It can not be real
Automation of the existing gas power station closed cooling water system under the starting state of part starts, and can interfere original operation shape
State.
Invention content
A kind of gas power station closed cooling water system of offer of the embodiment of the present invention and its start-up and shut-down control method, in enclosed
Under cooling water system full cut-off state or under the starting state of part, the automatic startup of closed cooling water system is realized；In operating status
It is lower to realize being automatically stopped for closed cooling water system.
To achieve the goals above, the present invention provides a kind of gas power station closed cooling water system, combustion gas heat
Power plant's closed cooling water system includes：Two drag a closed cooling water system, one-to-one closed cooling water system and to close ability of swimming public
System；The ability of swimming synergic system of closing includes：
Enclosed cooling water main pipe, enclosed cooling water return water main pipe, three closed cycle water pumps, expansion tank, three
Open and close type water- to-water heat exchanger, two raw water heaters, two unboiled water heating recirculation pumps, air compressor cooling water pipeline pump, two increasings
Press cooling water pump, supercharger cooling water pump bypass electrically operated gate, enclosed cooling water programed logic operation button, enclosed cooling
Water system starts select button, closed cycle water pump opens pump quantity select button, standby button is thrown in the interlocking of closed cycle water pump；
The enclosed cooling water main pipe is connected to the entrance of heat supply network station water main pipe；The enclosed cooling water return water is female
Pipe is connected to the outlet of heat supply network station water main pipe；It is cold that the closed cycle water pump by water inlet pipe connects the enclosed
But water water main pipe, and the enclosed cooling water return water main pipe is connected by outlet conduit；The open and close type water- to-water heat exchanger connection
The enclosed cooling water main pipe；The supercharger cooling water pump is connected to the enclosed cooling water by inlet duct
On pipeline between main pipe and heat supply network station water main pipe, gas compressor set cooling water is connected to by outlet conduit and is supplied
Jellyfish pipe；It is female that one end of the supercharger cooling water pump bypass electrically operated gate connects the gas compressor set cooling water
Pipe, the other end are connected on the pipeline between the enclosed cooling water main pipe and heat supply network station water main pipe；Air compressor machine
Cooling water pipeline pump is connected on the pipeline between air compressor machine and the enclosed cooling water return water main pipe；The raw water heater
It is connected with unboiled water heating recirculation pump, and is respectively connected to the enclosed cooling water return water main pipe；The expansion tank
It is connected to the enclosed cooling water return water main pipe, and demineralized water main pipe is connected to by closed-up water expansion tank water pipe；
The enclosed cooling water main pipe is connected to the water supply pipe that described two drag a closed cooling water system and described
The water supply pipe of one-to-one closed cooling water system；The enclosed cooling water return water main pipe is connected to described two and an enclosed is dragged to cool down
The water return pipeline of the water return pipeline of water system and the one-to-one closed cooling water system；The enclosed cooling water return water main pipe connects
It is connected to air compressor machine return water main pipe and gas compressor set cooling water return water main pipe.
To achieve the goals above, an embodiment of the present invention provides a kind of start and stop of gas power station closed cooling water system
Control method, the start-up and shut-down control method include：Close ability of swimming synergic system starting step, unit optimum selection step and the startup that puts into operation
Step；Wherein
Closing ability of swimming synergic system starting step includes：
Judge in three closed cycle water pumps whether at least one operation；
If three equal not running of closed cycle water pump, receive the conducting feedback information and water level of the expansion tank
Information judges whether closed-up water expansion tank water pipe is connected and whether the water level in the expansion tank meets default water
Position；If not, sending out the instruction of conducting closed-up water expansion tank water pipe；
If closed-up water expansion tank water pipe has been connected and the water level in the expansion tank meets preset water level, connect
The enabling feedback information of closed cycle water pump, the enabling feedback information of the open and close type water- to-water heat exchanger and expansion tank tune valve is received to throw
Automatic feedback information judges the inlet and outlet of three closed cycle water pumps and the inlet and outlet of three open and close type water- to-water heat exchangers
Whether be connected and whether the expansion tank tune valve is thrown automatically；If not, send out three closed cycle water pumps of conducting into
The instruction of the inlet and outlet of outlet and three open and close type water- to-water heat exchangers and expansion tank tune valve throw automatic command；
If the inlet and outlet of three closed cycle water pumps and the conducting of the inlet and outlet of three open and close type water- to-water heat exchangers
And the expansion tank tune valve has thrown the pass of the shutdown feedback information for receiving raw water heater automatically, unboiled water heating recirculation pump
The shutdown feedback information of door feedback information and air compressor cooling water pipeline pump judges the raw water heater, unboiled water heating
Whether recirculation pump and the air compressor cooling water pipeline pump have been isolated；If not, sending out the isolation raw water heater, described
Unboiled water heats the instruction of recirculation pump and the air compressor cooling water pipeline pump；
If the raw water heater, the unboiled water heat recirculation pump and the air compressor cooling water pipeline pump every
From reception heat supply network is closed for the shutdown feedback information of return water, the shutdown feedback information of supercharger cooling water pump and supercharger cooling water
The conducting feedback information for pumping bypass, judges whether heat supply network closed-up water and the supercharger cooling water pump have been isolated and have been judged described
Whether the bypass of supercharger cooling water pump has been connected；If not, sending out isolation heat supply network closed-up water and the supercharger cooling water pump
Instruct and be connected the instruction of the supercharger cooling water pump bypass；
If heat supply network closed-up water and the supercharger cooling water pump have been isolated and the supercharger cooling water pump bypasses
Conducting, carries out the unit optimum selection step；
The unit optimum selection step includes：
It receives unit valve state information and Starting mode input by user selects information, judge the unit valve state
Whether information meets the Starting mode in the Starting mode selection information；If so, the starting step that puts into operation described in carrying out；
The starting step that puts into operation includes：
Enclosed cooling water main-piping pressure information and expansion tank water level information are received, is supplied according to the enclosed cooling water
It is default that jellyfish pipe pressure information and expansion tank water level information judge whether the pressure of enclosed cooling water main pipe is more than first
Pressure and whether expansion tank water level meets preset condition；
If the pressure of enclosed cooling water main pipe is more than the first preset pressure and expansion tank water level meets default item
Part receives the closed cycle exit of pump electrically operated gate shutdown feedback information of pre-selection, judges that the closed cycle water of the pre-selection pumps out
Whether mouth electrically operated gate is turned off；If not, sending out the instruction for closing pre-selection closed cycle exit of pump electrically operated gate；
If the closed cycle exit of pump electrically operated gate of the pre-selection is turned off, the fortune of the closed cycle water pump of pre-selection is received
Row feedback information, judges whether the closed cycle water pump of the pre-selection has run；If not, sending out startup pre-selection closed cycle water
The instruction of pump；
If the closed cycle water pump of the pre-selection has been run, the closed cycle exit of pump electrically operated gate for receiving operation is opened the door
Feedback information, judges whether the closed cycle exit of pump electrically operated gate of the operation has turned on；If not, sending out open and close type cycle
The instruction of exit of pump electrically operated gate；
If the closed cycle exit of pump electrically operated gate of the operation has turned on, the enclosed cooling water main pipe is received
Pressure value, judge the enclosed cooling water main pipe pressure whether be more than the second preset pressure；
If the pressure of the enclosed cooling water main pipe is more than the second preset pressure, the interlocking of closed cycle water pump is received
Feedback information is put into, judges whether the closed cycle water pump puts into interlocking；
If the closed cycle water pump does not put into interlocking, the instruction of closed-up water interlocking input is sent out by the closed cycle
Water pump input interlocking.
In one embodiment, the method further includes：System stops step, and the system stops step and includes：
Judge whether the interlocking of closed cycle water pump has dropped out, if not, sending out interlocking exit instruction to exit the enclosed
Water circulating pump interlocks；
If so, judging whether three closed cycle water pumps stop, if there is the closed cycle water not stopped
Pump, sends out the halt instruction of closed cycle water pump to stop the closed cycle water pump not yet stopped；
If three closed cycle water pumps stop, whether three closed cycle exit of pump electrically operated gates are judged
It is turned off, if there is the closed cycle water pump for being not turned off outlet electrically operated gate, sends out the closing of closed cycle water pump electrically operated gate and refer to
It enables to close the outlet electrically operated gate for the closed cycle water pump not yet closed.
In one embodiment, before closing ability of swimming synergic system starting step, the method further includes：
Judge demineralized water main-piping pressure whether be more than 0.2MPa, whether closed cycle water pump has preselected and described two drag one to close
Whether formula cooling water system or the one-to-one closed cooling water system have preselected, if brine main-piping pressure be more than 0.2MPa,
Closed cycle water pump has preselected and described two drag a closed cooling water system or the one-to-one closed cooling water system to preselect,
Ability of swimming synergic system starting step is closed described in progress.
In one embodiment, if thering is one or more to run in three closed cycle water pumps, described in progress
The starting step that puts into operation.
In one embodiment, the Starting mode includes：Start described in the one-to-one closed cooling water system or startup
Two drag a closed cooling water system；
Judge whether the unit valve state information meets the Starting mode in the Starting mode selection information, packet
It includes：
When starting the one-to-one closed cooling water system, judge the unit valve state information whether be：Two drag
The valve of one closed cooling water system is closed and the valve opening of one-to-one closed cooling water system；
When start described two drag a closed cooling water system when, judge the unit valve state information whether be：Two drag
The valve closing of the valve opening and one-to-one closed cooling water system of one closed cooling water system.
In one embodiment, judge whether the water level in the expansion tank meets preset water level, including：Judge described swollen
Whether the water level in swollen water tank is more than 1000mm.
In one embodiment, judge whether the pressure of enclosed cooling water main pipe is more than the first preset pressure and expands
Whether cistern water level meets preset condition, including：Judge enclosed cooling water main pipe pressure whether be more than 0.15MPa and
Whether expansion tank water level is more than 1200mm.
In one embodiment, judge whether the pressure of the enclosed cooling water main pipe is more than the second preset pressure, packet
It includes：Judge whether the pressure of the enclosed cooling water main pipe is more than 0.45MPa.
In one embodiment, sentence according to the enclosed cooling water main-piping pressure information and expansion tank water level information
The pressure of disconnected enclosed cooling water main pipe whether is more than the first preset pressure and whether expansion tank water level meets default item
Before part, the method further includes：Wait for 10s.
Through the invention, enclosed cooling can be realized under closed cooling water system full cut-off state or under the starting state of part
The automatic startup of water system, original operating status when interference sections do not start；Enclosed cooling water is realized under operation
System is automatically stopped.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram for closing ability of swimming synergic system of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the one-to-one closed cooling water system of the embodiment of the present invention；
Fig. 3 is the two of the embodiment of the present invention structural schematic diagram for dragging a closed cooling water system；
Fig. 4 is the start-up and shut-down control method flow diagram of one embodiment of the invention；
Fig. 5 closes ability of swimming synergic system starting step flow chart for the embodiment of the present invention；
Fig. 6 is the starting step flow chart that puts into operation of the embodiment of the present invention；
Fig. 7 is the start-up and shut-down control method flow diagram of another embodiment of the present invention；
Fig. 8 is that the system of the embodiment of the present invention stops flow chart of steps.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of gas power station closed cooling water system, the gas power station enclosed cooling water system
System includes：Two drag a closed cooling water system, one-to-one closed cooling water system and close ability of swimming synergic system.
As shown in Figure 1, this closes ability of swimming synergic system includes：Enclosed cooling water main pipe 1, enclosed cooling water return water main pipe
2, three closed cycle water pumps 3,6, two unboiled water of raw water heater of open and close type water- to-water heat exchanger 5, two of expansion tank 4, three add
Hot recirculation pump 7,8, two supercharger cooling water pumps 9 of air compressor cooling water pipeline pump, supercharger cooling water pump bypass electrically operated gate
10, enclosed cooling water programed logic operation button 11, closed cooling water system start select button 12, closed cycle water pump
It opens pump quantity select button 13 and standby button 14 is thrown in the interlocking of closed cycle water pump.
Standby button 14 is thrown by clicking the interlocking of the closed cycle water pump on closed cooling water system picture, three can be preselected
Closed cycle water pump.
Pump quantity select button 13 is opened by clicking the closed cycle water pump, the operation side of closed cycle water pump can be selected
Formula, including " single pump operation ", " double pump operation " and " three pump operations " these three modes.
Enclosed cooling water main pipe 1 is connected to the entrance of heat supply network station water main pipe (not shown)；Enclosed cooling water
Return water main pipe 2 is connected to the outlet of heat supply network station water main pipe.Closed cycle water pump 3 connects enclosed cooling water by water inlet pipe 31
Water main pipe 1, and enclosed cooling water return water main pipe 2 is connected by outlet conduit 32.Open and close type water- to-water heat exchanger 5 connects enclosed cooling
Water water main pipe 1.Two supercharger cooling water pumps 9 respectively by inlet duct 91 be connected to enclosed cooling water main pipe 1 with
On pipeline 21 between the water main pipe of heat supply network station, gas compressor set cooling water main pipe is connected to by outlet conduit 92
(not shown)；One end connection gas compressor set cooling water that supercharger cooling water pump bypasses electrically operated gate 10 is female
Pipe, the other end are connected on the pipeline 21 between enclosed cooling water main pipe 1 and heat supply network station water main pipe.Air compressor cooling water
Pipeline pump 8 is connected on the pipeline 81 between air compressor machine (not shown) and enclosed cooling water return water main pipe.Two unboiled water add
The common end 71 that one common end 61 of hot device 6 heats recirculation pumps 7 with two unboiled water is connected, two raw water heaters 6
Another common end 62 and another common end 72 of two unboiled water heating recirculation pumps 7 are respectively connected to enclosed cooling water return water main pipe
2.Expansion tank 4 is connected to enclosed cooling water return water main pipe 2, and is connected to desalination by closed-up water expansion tank water pipe 41
The outlet of jellyfish pipe (not shown).In one embodiment, expansion tank 4 is additionally coupled to exhaust pipe 42.
Enclosed cooling water main pipe 1 is connected to the water supply pipe that two drag a closed cooling water system and one-to-one enclosed is cold
But the water supply pipe of water system；Enclosed cooling water return water main pipe 2 be connected to the water return pipeline that two drag a closed cooling water system and
The water return pipeline of one-to-one closed cooling water system.Enclosed cooling water return water main pipe 2 is additionally coupled to air compressor machine return water main pipe, natural
The water outlet of air compressor group cooling water return water main pipe and heat supply network station return pipe.
In one-to-one closed cooling water system (also known as one-to-one unit), a combustion engine steam turbine in tow, one-to-one
The concrete outcome of closed cooling water system is as shown in Figure 2.1001 be No. 2 high pressure water pumps of one-to-one unit waste heat boiler, 1002
It is that feed pump is pressed in one-to-one unit waste heat boiler 2 for No. 1 high pressure water pump of one-to-one unit waste heat boiler, 1003,1004
To press feed pump in one-to-one unit waste heat boiler 1,1005 be No. 2 low-pressure coal savers recycling of one-to-one unit waste heat boiler
Pump, 1006 be No. 1 low-pressure coal saver recirculation pump of one-to-one unit waste heat boiler.2001 cool down equipment for one-to-one unit.
3001 be pump bearing cooler before one-to-one power generator turbine 1 is solidifying, and 3002 be No. 2 solidifying preceding pump bearings of one-to-one power generator turbine
Cooler, 3003 be the solidifying pump motor cooler of one-to-one power generator turbine 1, and 3004 be No. 2 solidifying pumps of one-to-one power generator turbine
Cooler of electric motor.4001 and 4002 be one-to-one power generator turbine lube oil cooler.It is cold that one-to-one enclosed is further comprised in Fig. 2
But water system user needs the valve operated, repeats no more.
Two drag in a closed cooling water system, two combustion engine steam turbine in tow, the tool of one-to-one closed cooling water system
The results are shown in Figure 3 for body.102 drag the high pressure water pump of waste heat boiler 2 of a unit 1 for two, and 103 drag a unit more than No. 1 for two
No. 1 high pressure water pump of heat boiler, 104 drag for two and press feed pump in the waste heat boiler 2 of a unit 1, and 105 drag a unit 1 for two
Feed pump is pressed in number waste heat boiler 1,106 drag the low-pressure coal saver recirculation pump of waste heat boiler 2 of a unit 1 for two, and 107 are
Two drag the low-pressure coal saver recirculation pump of waste heat boiler 1 of a unit 1.201 drag the high pressure of waste heat boiler 2 of a unit 2 for two
Feed pump, 202 drag the high pressure water pump of waste heat boiler 1 of a unit 2 for two, and 203 drag the waste heat boiler 2 of a unit 2 for two
Middle pressure feed pump, 204 drag for two and press feed pump in the waste heat boiler 1 of a unit 2, and 205 drag No. 2 waste heat boilers of a unit for two
No. 2 low-pressure coal saver recirculation pumps, 206 drag the low-pressure coal saver recirculation pump of waste heat boiler 1 of a unit 2 for two.301 be two
The cooling equipment of a unit 1 is dragged, 302 drag the cooling equipment of a unit 2 for two.401 drag a power generator turbine generator empty for two
Side seal oil cooler, 402 drag a power generator turbine generator hydrogen-side seal oil cooler for two, and 403 drag a unit vapour for two
Turbine generator stator cooler, 404 drag a power generator turbine hydrogen cooler of generator for two, and 407 drag a unit vapour for two
Turbine lube oil cooler.501 drag a power generator turbine generator hydrogen desiccation agent cooler for two, and 502 drag a unit for two
Steam turbine condensate cooler.Two are further comprised in Fig. 3 drags a closed cooling water system user to need the valve operated, no longer superfluous
It states.
The effect of closed cycle water pump 3 is to provide pressure head for enclosed cooling water, and driving enclosed cooling water flows through gas power station
The cooling water heat exchanger of each subsidiary engine equipment.The strainer of closed cycle pump entrance is closed to prevent larger impurity particle from entering
Formula water circulating pump, the phenomenon that leading to closed cycle pump shaft bite or locking.Flow through open type cooling in open and close type water- to-water heat exchanger side
Enclosed cooling water is flowed through in water, side, and enclosed cooling water cools down water cooling by the open and close type water- to-water heat exchanger by open type.Expansion tank
Effect be to provide inlet head for closed cycle water pump, additionally as one adjust and buffer container, with meet enclosed cooling
The needs of water fluctuation.Enclosed cooling water is driven by closed cycle water pump, and reaching each subsidiary engine by enclosed cooling water pipeline sets
Standby cooling water heat exchanger controls the stream that enclosed cooling water flows through each subsidiary engine equipment by controlling the aperture of each user's valve
Amount, to achieve the purpose that the cooled Temperature of Working of control.
In Fig. 1 to system shown in Fig. 3,Indicate electrically operated valve.
As shown in figure 4, the present invention provides a kind of start-up and shut-down control method, for cold to gas power station enclosed shown in FIG. 1
But water system carries out start-up and shut-down control.The start-up and shut-down control method includes：
S401：Close ability of swimming synergic system starting step；
S402：Unit optimum selection step；And
S403：Put into operation starting step.
As shown in figure 5, closing ability of swimming synergic system starting step and including：
S501：Judge in three closed cycle water pumps whether at least one operation.
If there is any one or arbitrary two to have been turned in three closed cycle water pumps, the S403 in Fig. 4 is carried out, it is no
Then, S502 is carried out.The interference original operating status of closed cooling water system is avoided, the repetition of closed cycle water pump is also avoided
Start work.
S502：Judge closed-up water expansion tank water pipe whether be connected and the water level in expansion tank whether meet it is default
Water level.
When it is implemented, the conducting feedback information and water level information of reception expansion tank are needed, if the conducting feedback information
Including：Electrically operated gate has been opened in front of the door, expansion tank moisturizing bypass door has been closed and expansion tank moisturizing is adjusted for expansion tank moisturizing adjusting
Door standard-sized sheet, and the water level (i.e. expansion tank liquid level) in water level information in expansion tank is more than preset water level, then it represents that it closes
Formula water expansion tank water pipe has been connected and the water level in expansion tank is more than preset water level, can carry out S503.
Preset water level can be 1000mm in one embodiment, and invention is not limited thereto.
If not meeting expansion tank moisturizing adjusting, electrically operated gate has been opened in front of the door, expansion tank moisturizing bypass door has been closed, swelling water
Case moisturizing adjusts door, and the water level in standard-sized sheet and expansion tank is needed no more than one or more in tetra- information of 1000mm
Into S504, the instruction of conducting closed-up water expansion tank water pipe is sent out, which includes：It opens expansion tank moisturizing and adjusts door
Preceding electrically operated gate closes expansion tank moisturizing bypass door and opens expansion tank moisturizing adjusting door, and door is adjusted to open expansion tank moisturizing
Preceding electrically operated gate closes expansion tank moisturizing bypass door and opens expansion tank moisturizing adjusting door.
S503：Whether the inlet and outlet of the inlet and outlet and three open and close type water- to-water heat exchangers that judge three closed cycle water pumps are connected
And judge whether expansion tank tune valve is thrown automatically.
When it is implemented, needing to receive the enabling feedback information of closed cycle water pump, the open and close type water- to-water heat exchanger is opened
Door feedback information and expansion tank tune valve throw automatic feedback information, if the enabling feedback information of closed cycle water pump is closed including three
Formula water circulating pump inlet and outlet electrically operated gate has been opened, the enabling feedback information of open and close type water- to-water heat exchanger include three enclosed water- to-water heat exchangers into
Outlet electrically operated gate has been opened, and it includes throwing expansion tank moisturizing adjusting door to have thrown automatically that expansion tank tune valve, which throws automatic feedback information,
Enter, then carries out S505.
If three closed cycle water pump inlet and outlet electrically operated gates have been opened, three closed-up water heat exchanger inlet and outlet electrically operated gates are
It opens, throwing expansion tank moisturizing and adjusting door and put into automatically in these three conditions has one or more to be unsatisfactory for, then carries out
S506 sends out the inlet and outlet of three closed cycle water pumps of conducting and the inlet and outlet and expansion tank tune of three open and close type water- to-water heat exchangers
Valve throws automatically instruction.For example, if there are a closed-up waters to exchange heat in three closed-up water heat exchanger inlet and outlet electrically operated gates
Device inlet and outlet electrically operated gate is not opened, then progress S506 is needed to send out above-metioned instruction.The instruction includes：Open three closed cycle water pumps into
Electrically operated gate is exported, three closed-up water heat exchanger inlet and outlet electrically operated gates is opened and throwing expansion tank moisturizing adjusting door is automatic, to complete three
Platform closed cycle water pump imports and exports the unlatching of electrically operated gate, the unlatching of three closed-up water heat exchanger inlet and outlet electrically operated gates and expansion tank
Moisturizing adjusts automatically engaging for door.
S505：Judge whether raw water heater, unboiled water heating recirculation pump and air compressor cooling water pipeline pump have been isolated.
When it is implemented, needing the shutdown that the shutdown feedback information, the unboiled water that receive raw water heater heat recirculation pump anti-
The shutdown feedback information of feedforward information and air compressor cooling water pipeline pump, if the shutdown feedback information of raw water heater includes #1
And #2 unboiled water heat exchanger inlet and outlet electrically operated gates have been closed, the shutdown feedback information that unboiled water heats recirculation pump includes that #1 and #2 unboiled water adds
Hot device recirculation pump inlet and outlet electrically operated gate has been closed, and the shutdown feedback information of air compressor cooling water pipeline pump cools down for air compressor machine
Waterpipe pump inlet and outlet door has closed, then carries out S507.
If #1 and #2 unboiled water heat exchanger inlet and outlet electrically operated gates have been closed, #1 and #2 raw water heater recirculation pumps inlet and outlet electricity
Dynamic door has closed, air compressor cooling water pipeline pump inlet and outlet door closed these conditions there are one or it is multiple be unsatisfactory for, then carry out
S508 sends out the instruction of isolation raw water heater, unboiled water heating recirculation pump and air compressor cooling water pipeline pump, to close #1 unboiled water
Heater recirculation pump imports and exports electrically operated gate, closes #2 raw water heater recirculation pumps and imports and exports electrically operated gate, closes #1 unboiled water heat exchangers
Electrically operated gate is imported and exported, #2 unboiled water heat exchanger inlet and outlet electrically operated gates are closed, air compressor cooling water pipeline pump is closed and imports and exports door.
S507：Judge whether heat supply network closed-up water and supercharger cooling water pump have been isolated and have been judged by supercharger cooling water pump
Whether road has been connected.
When it is implemented, needing to receive heat supply network, to close the shutdown feedback information for return water, the shutdown of supercharger cooling water pump anti-
Feedforward information and supercharger cooling water pump bypass conducting feedback information, if heat supply network close for return water shutdown feedback information be to heat
Net has been closed for return water electrically operated gate, and the shutdown feedback information of supercharger cooling water pump includes the disengaging of #1 and #2 supercharger cooling water pumps
Mouth electrically operated gate has been closed, and the conducting feedback information of supercharger cooling water pump bypass is that supercharger cooling water pump has bypassed electrically operated gate
It opens, then heat supply network closed-up water and supercharger cooling water pump have been isolated and the bypass of supercharger cooling water pump has been connected, and are carried out S402, are held
Row unit optimum selection step.
If closed to heat supply network for return water electrically operated gate, #1 and #2 supercharger cooling water pumps inlet and outlet electrically operated gate has been closed, and is pressurized
Machine cooling water pump bypass electrically operated gate has opened in these conditions that there are one or more to be unsatisfactory for, then executes S509, sends out isolation heat
The instruction of instruction and conducting the supercharger cooling water pump bypass of net closed-up water and the supercharger cooling water pump, is closed with controlling
It to heat supply network for return water electrically operated gate, closes #1 supercharger cooling water pumps and imports and exports electrically operated gate, close #2 supercharger cooling water pumps inlet and outlet electricity
It moves door and opens supercharger cooling water pump bypass electrically operated gate.
S402 is a branching step, starts select button by the closed circle water system of Fig. 1, user can select to open
Dynamic two drag a closed circle water system or start one-to-one closed circle water system.When it is implemented, needing to receive unit valve
Status information and Starting mode input by user select information, judge whether unit valve state information meets Starting mode selection
Starting mode in information.
If Starting mode input by user selects information to start two for selection and drags a closed circle water system, unit valve is judged
Door state information whether be：Two drag the valve of the valve opening of a closed cooling water system and one-to-one closed cooling water system to close
It closes.If so, carrying out S403, the starting step that puts into operation is executed；If not, opening two drags the corresponding valve of a closed circle water system,
Close the corresponding valve of one-to-one closed circle water system.
If Starting mode input by user selects information to start one-to-one closed circle water system for selection, unit valve is judged
Door state information whether be：The valve opening of one-to-one closed cooling water system and two the valve of a closed cooling water system is dragged to close
It closes.If so, carrying out S403, the starting step that puts into operation is executed；If not, the corresponding valve of one-to-one closed circle water system is opened,
It closes two and drags the corresponding valve of a closed circle water system.
As shown in fig. 6, the starting step S403 that puts into operation includes：
S601：Judge whether the pressure of enclosed cooling water main pipe is more than the first preset pressure and expansion tank water level
Whether preset condition is met.
When it is implemented, needing to receive enclosed cooling water main-piping pressure information and expansion tank water level information, judge
Whether the pressure in enclosed cooling water main-piping pressure information is more than the first preset pressure, while judging that expansion tank water level is believed
Whether expansion tank water level meets preset condition in breath, if the pressure of enclosed cooling water main pipe is more than the first preset pressure
And expansion tank water level meets preset condition, then carries out S602.In one embodiment, the first preset pressure is 0.15MPa, in advance
If condition, which is expansion tank water level, is more than 1200mm, invention is not limited thereto.
If the pressure of enclosed cooling water main pipe is unsatisfactory for no more than the first preset pressure and/or expansion tank water level
Preset condition then needs equal certain times to rejudge, until the pressure of enclosed cooling water main pipe is more than the first default pressure
Power and expansion tank water level meets preset condition, then carries out S602.
S602：Judge whether the closed cycle exit of pump electrically operated gate of pre-selection is turned off.
When it is implemented, needing to receive the closed cycle exit of pump electrically operated gate shutdown feedback information preselected, judge according to this
Whether the closed cycle exit of pump electrically operated gate of pre-selection is turned off；If not, carrying out S603, closing pre-selection closed cycle water is sent out
The instruction of pump discharge electrically operated gate closes pre-selection closed cycle exit of pump electrically operated gate with control.
If the closed cycle exit of pump electrically operated gate of pre-selection is turned off, S604 is carried out.
S604：Judge whether the closed cycle water pump of pre-selection has run.
When it is implemented, needing the operation feedback information of the closed cycle water pump of reception pre-selection, closing for pre-selection is judged according to this
Whether formula water circulating pump has run；If the closed cycle water pump not running of pre-selection carries out S605, sends out startup pre-selection enclosed and follow
The instruction of ring water pump has been run with the closed cycle water pump of control pre-selection.
If by judging to know that the closed cycle water pump of pre-selection has been run, S606 is carried out.
S606：Judge whether the closed cycle exit of pump electrically operated gate of operation has turned on.
When it is implemented, needing to receive the closed cycle exit of pump electrically operated gate enabling feedback information run, judge to run
Closed cycle exit of pump electrically operated gate whether have turned on；If not, carrying out S607, sends out and open closed cycle exit of pump electricity
The instruction of dynamic door, to open closed cycle exit of pump electrically operated gate.
Startup pump pre-selection button is provided on gas power station closed cooling water system of the present invention, by clicking enclosed cooling
Closed cycle water pump block push button on water system picture, can preselect three closed cycle water pumps.It is embodied in S602 extremely
The instruction of S607, S603 are to close the outlet electrically operated gate of pre-selection pump, can start pre-selection pump in S605, pre-selection is opened in S607
The outlet electrically operated gate of pump.
Pump quantity select button 13 is opened by clicking the closed cycle water pump, all pre-selection pumps can be closed in S603
Electrically operated gate is exported, the pre-selection pump of respective numbers can be started in S605, the pre-selection pump of respective numbers can be opened in S607
Outlet electrically operated gate.
S608：Judge whether the pressure of the enclosed cooling water main pipe is more than the second preset pressure.
When it is implemented, needing the pressure value of reception enclosed cooling water main pipe, judge that enclosed is cold according to the pressure value
But whether the pressure of water water main pipe is more than the second preset pressure, if the pressure of enclosed cooling water main pipe is not more than second
Preset pressure judges whether the pressure of enclosed cooling water main pipe is more than the second default pressure again after waiting for intervals
Power carries out S609 when the pressure of enclosed cooling water main pipe is more than the second preset pressure.
S609：Judge whether closed cycle water pump puts into interlocking.
When it is implemented, needing to receive closed cycle water pump interlocking input feedback information, closed cycle water pump is judged according to this
Whether input interlocks；If the input interlocking of closed cycle water pump, startup program terminate.
If the closed cycle water pump does not put into interlocking, into S610, the instruction of closed-up water interlocking input is sent out, by institute
State the input interlocking of closed cycle water pump.
The main body of the start-up and shut-down control method of the embodiment of the present invention can be computer control system, DCS control systems etc., connect
Connect and control each pump, heat exchanger, heater, electrically operated gate and the valve of gas power station closed cooling water system shown in FIG. 1
Deng.
In one embodiment, as shown in fig. 7, the start-up and shut-down control method of the present invention further includes：
S701：System stops step.
When it is implemented, as shown in figure 8, system stopping step includes：
S801：Judge whether the interlocking of closed cycle water pump has dropped out.
When it is implemented, indicating that closed-up water interlocks the feedback having dropped out if received, the interlocking of closed cycle water pump is indicated
It has dropped out, carries out S8023；It indicates that closed-up water interlocks the feedback having dropped out if do not received, indicates the interlocking of closed cycle water pump
It does not exit, carries out S802, send out the instruction for exiting closed-up water interlocking, interlocking is exited to control closed cycle water pump.
S803：Judge whether three closed cycle water pumps stop.
When it is implemented, if receiving the feedback that three closed cycle water pumps stop, three closed cycle water are indicated
Pump stops, and carries out S804；If only receiving the feedback of one or the stopping of two closed cycle water pumps, indicate what presence did not stopped
Closed cycle water pump carries out S805, sends out the halt instruction of closed cycle water pump and (sends out the finger for stopping three closed cycle water pumps
Enable) to stop the closed cycle water pump not yet stopped.
S805：Judge whether three closed cycle exit of pump electrically operated gates are turned off.
When it is implemented, if receiving the feedback that three closed cycle exit of pump electrically operated gates are turned off, indicate
Three closed cycle exit of pump electrically operated gates are turned off, and system stops step and terminates.If only receiving one or two
The feedback that closed cycle exit of pump electrically operated gate is turned off indicates there is the closed cycle exit of pump electrically operated gate being not turned off, into
Row S806 sends out the instruction for closing three closed cycle water pump electrically operated gates, to close going out for the closed cycle water pump not yet closed
Mouth electrically operated gate.
According to foregoing description it is found that in the start-up and shut-down control method of the present invention, each step will first judge whether feedback receives,
Continue if receiving in next step；If do not received, instruction is sent out, waits to be feedback receive.
In one embodiment, before closing ability of swimming synergic system starting step, start-up and shut-down control method of the invention further includes：
Judge demineralized water main-piping pressure whether be more than 0.2MPa, whether closed cycle water pump has preselected and described two drag one to close
Whether formula cooling water system or the one-to-one closed cooling water system have preselected, if brine main-piping pressure be more than 0.2MPa,
Closed cycle water pump has preselected and described two drag a closed cooling water system or the one-to-one closed cooling water system to preselect,
Ability of swimming synergic system starting step is closed described in progress.After meeting above three condition, the start and stop control of closed cooling water system
System can execute down.
In one embodiment, before the starting step that puts into operation for carrying out S403, more specifically, being cooled down according to the enclosed
Water water main pipe pressure information and expansion tank water level information judge whether the pressure of enclosed cooling water main pipe is more than first
Before whether preset pressure and expansion tank water level meet preset condition, the start-up and shut-down control method further includes：It waits for
10s so that the pressure of enclosed cooling water main pipe can be more than the first preset pressure and expansion tank water level disclosure satisfy that
Preset condition.
It should be noted that the start-up and shut-down control method of shutting down of the present invention is not provided with allowing the condition stopped, thus it is any when
Wait operations staff can operation sequence control stop logic closed cooling water system is stopped.
It should be noted that programed logic (the start-up and shut-down control side of gas power station closed cooling water system of the present invention
Method) proceed to a certain step, when not receiving due feedback signal, programed logic can rest on the step, wait for manual operation.
Power plant operations staff can find the unreceived feedback signal of current operating procedure, whether artificially judge unreceived feedback signal
Influence continuing to execute for programed logic.If the feedback signal does not influence continuing for present procedure control logic, operation
Personnel can operate the execution that leapfrog action continues programed logic；If the feedback signal influences present procedure control logic
Continuing, then operations staff can targetedly go investigation problem according to the unsatisfied feedback signal of each found,
Until receiving the feedback signal, programed logic is continued to execute.
The programed logic of the gas power station closed cooling water system, which starts step sequence, can automatically engage closed cycle
Water pump interlocks, this is embodied in S609 and S610 in the Fig. 6 for starting step sequence.After interlocking input, when there is closed cycle water pump operation
And closed cooling water system pressure be less than certain definite value when；It, can be another with interlocked startup or when thering is any closed cycle water pump to trip
One closed cycle water pump, to ensure that closed cooling water system main-piping pressure is normal.
Three zones may be implemented in the present invention：
The first, under closed cooling water system full cut-off state, the automatic startup of closed cooling water system is realized；And it is transporting
Under row state, being automatically stopped for closed cooling water system is realized.
The second, in the state that closed cooling water system part starts, the automatic startup of closed cooling water system is realized, and
Original operating status is not interfered.
Third, when startup program is run to a certain step, condition is unsatisfactory for, if artificially judging, the condition can ignore that, can
To carry out the operation that leapfrog action continues startup program manually, until closed cooling water system startup finishes.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, the present invention can be used in one or more wherein include computer usable program code computer
The computer program production implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Specific embodiment is applied in the present invention, and principle and implementation of the present invention are described, above example
Explanation be merely used to help understand the present invention method and its core concept；Meanwhile for those of ordinary skill in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (10)
1. a kind of gas power station closed cooling water system, which is characterized in that the gas power station closed cooling water system
Including：Two drag a closed cooling water system, one-to-one closed cooling water system and close ability of swimming synergic system；It is described that close ability of swimming public
System includes：
Enclosed cooling water main pipe, enclosed cooling water return water main pipe, three closed cycle water pumps, expansion tank, three opening and closings
Formula water- to-water heat exchanger, two raw water heaters, two unboiled water heating recirculation pumps, air compressor cooling water pipeline pump, two superchargers
Cooling water pump, supercharger cooling water pump bypass electrically operated gate, enclosed cooling water programed logic operation button, enclosed cooling water system
System starts select button, closed cycle water pump opens pump quantity select button, standby button is thrown in the interlocking of closed cycle water pump；
The enclosed cooling water main pipe is connected to the entrance of heat supply network station water main pipe；The enclosed cooling water return water main pipe connects
It is connected to the outlet of heat supply network station water main pipe；The closed cycle water pump connects the enclosed cooling water by water inlet pipe
Water main pipe, and the enclosed cooling water return water main pipe is connected by outlet conduit；Described in the open and close type water- to-water heat exchanger connection
Enclosed cooling water main pipe；The supercharger cooling water pump is connected to the enclosed cooling water main pipe by inlet duct
On pipeline between the water main pipe of the heat supply network station, it is female that gas compressor set cooling water is connected to by outlet conduit
Pipe；One end of the supercharger cooling water pump bypass electrically operated gate connects the gas compressor set cooling water main pipe, separately
One end is connected on the pipeline between the enclosed cooling water main pipe and heat supply network station water main pipe；Air compressor cooling water
Pipeline pump is connected on the pipeline between air compressor machine and the enclosed cooling water return water main pipe；The raw water heater with it is described
Unboiled water heating recirculation pump is connected, and is respectively connected to the enclosed cooling water return water main pipe；Wherein, two unboiled water add
The common end that one common end of hot device heats recirculation pumps with two unboiled water is connected, two raw water heaters
Another common end and another common end of two unboiled water heating recirculation pumps are respectively connected to the enclosed cooling water return water
Main pipe；The expansion tank is connected to the enclosed cooling water return water main pipe, and is connected by closed-up water expansion tank water pipe
It is connected to demineralized water main pipe；
The enclosed cooling water main pipe is connected to the water supply pipe that described two drag a closed cooling water system and described one drags
The water supply pipe of one closed cooling water system；The enclosed cooling water return water main pipe is connected to described two and drags an enclosed cooling water system
The water return pipeline of the water return pipeline of system and the one-to-one closed cooling water system；The enclosed cooling water return water main pipe is connected to
Air compressor machine return water main pipe and gas compressor set cooling water return water main pipe.
2. a kind of start-up and shut-down control method applied to gas power station closed cooling water system described in claim 1, feature
It is, the start-up and shut-down control method includes：Close ability of swimming synergic system starting step, unit optimum selection step and the startup step that puts into operation
Suddenly；Wherein
Closing ability of swimming synergic system starting step includes：
Judge in three closed cycle water pumps whether at least one operation；
If three equal not running of closed cycle water pump, the conducting feedback information and water level letter of the expansion tank are received
Breath, judges whether closed-up water expansion tank water pipe is connected and whether the water level in the expansion tank meets preset water level；
If not, sending out the instruction of conducting closed-up water expansion tank water pipe；
If closed-up water expansion tank water pipe has been connected and the water level in the expansion tank meets preset water level, reception is closed
The enabling feedback information of formula water circulating pump, the enabling feedback information of the open and close type water- to-water heat exchanger and expansion tank tune valve are thrown automatic
Feedback information, judge three closed cycle water pumps inlet and outlet and three open and close type water- to-water heat exchangers inlet and outlet whether
It is connected and whether the expansion tank tune valve is thrown automatically；If not, sending out the inlet and outlet of three closed cycle water pumps of conducting
And instruction and the expansion tank tune valve throwing automatic command of the inlet and outlet of three open and close type water- to-water heat exchangers；
If the inlet and outlet of three closed cycle water pumps and the conducting of the inlet and outlet of three open and close type water- to-water heat exchangers and institute
State expansion tank tune valve thrown the shutdown feedback information for receiving raw water heater automatically, unboiled water heating recirculation pump shutdown it is anti-
The shutdown feedback information of feedforward information and air compressor cooling water pipeline pump judges that the raw water heater, unboiled water heating follow again
Ring pumps and whether the air compressor cooling water pipeline pump has been isolated；If not, sending out the isolation raw water heater, the unboiled water
Heat the instruction of recirculation pump and the air compressor cooling water pipeline pump；
If the raw water heater, the unboiled water heat recirculation pump and the air compressor cooling water pipeline pump has been isolated, connect
Heat supply network is received to close for the bypass of the shutdown feedback information of return water, the shutdown feedback information of supercharger cooling water pump and supercharger cooling water pump
Conducting feedback information, judge whether heat supply network closed-up water and the supercharger cooling water pump have been isolated and have judged the supercharger
Whether cooling water pump bypass has been connected；If not, send out isolation heat supply network closed-up water and the supercharger cooling water pump instruction and
The instruction of the supercharger cooling water pump bypass is connected；
If heat supply network closed-up water and the supercharger cooling water pump have been isolated and supercharger cooling water pump bypass has been connected,
Carry out the unit optimum selection step；
The unit optimum selection step includes：
It receives unit valve state information and Starting mode input by user selects information, judge the unit valve state information
Whether Starting mode in the Starting mode selection information is met；If so, the starting step that puts into operation described in carrying out；
The starting step that puts into operation includes：
Enclosed cooling water main-piping pressure information and expansion tank water level information are received, according to enclosed cooling water mother
Pipe pressure information and expansion tank water level information judge whether the pressure of enclosed cooling water main pipe is more than the first preset pressure
And whether expansion tank water level meets preset condition；
If the pressure of enclosed cooling water main pipe is more than the first preset pressure and expansion tank water level meets preset condition, connect
The closed cycle exit of pump electrically operated gate shutdown feedback information for receiving pre-selection, judges that the closed cycle exit of pump of the pre-selection is electronic
Whether door is turned off；If not, sending out the instruction for closing pre-selection closed cycle exit of pump electrically operated gate；
If the closed cycle exit of pump electrically operated gate of the pre-selection is turned off, the operation for receiving the closed cycle water pump of pre-selection is anti-
Feedforward information, judges whether the closed cycle water pump of the pre-selection has run；Start pre-selection closed cycle water pump if not, sending out
Instruction；
If the closed cycle water pump of the pre-selection has been run, the closed cycle exit of pump electrically operated gate enabling feedback of operation is received
Information, judges whether the closed cycle exit of pump electrically operated gate of the operation has turned on；If not, sending out the enclosed for opening operation
Water circulating pump exports the instruction of electrically operated gate；
If the closed cycle exit of pump electrically operated gate of the operation has turned on, the pressure of the enclosed cooling water main pipe is received
Force value, judges whether the pressure of the enclosed cooling water main pipe is more than the second preset pressure；
If the pressure of the enclosed cooling water main pipe is more than the second preset pressure, closed cycle water pump interlocking input is received
Feedback information, judges whether the closed cycle water pump puts into interlocking；
If the closed cycle water pump does not put into interlocking, the instruction for sending out closed cycle water pump interlocking input follows the enclosed
The input interlocking of ring water pump.
3. start-up and shut-down control method according to claim 2, which is characterized in that the method further includes：System stops step
Suddenly, system stopping step includes：
Judge whether the interlocking of closed cycle water pump has dropped out, if not, sending out interlocking exit instruction to exit the closed cycle
Water pump interlocks；
If so, judging whether three closed cycle water pumps stop, if there is the closed cycle water pump not stopped, hair
Go out the halt instruction of closed cycle water pump to stop the closed cycle water pump not yet stopped；
If three closed cycle water pumps stop, whether three closed cycle exit of pump electrically operated gates are judged
It closes, if there is the closed cycle water pump for being not turned off outlet electrically operated gate, sends out the closing of closed cycle exit of pump electrically operated gate and refer to
It enables to close the outlet electrically operated gate for the closed cycle water pump not yet closed.
4. start-up and shut-down control method according to claim 2, which is characterized in that close ability of swimming synergic system starting step it
Before, the method further includes：
Judge demineralized water main-piping pressure whether be more than 0.2MPa, whether closed cycle water pump has preselected and described two drag an enclosed cold
But whether water system or the one-to-one closed cooling water system have preselected, if brine main-piping pressure is more than 0.2MPa, enclosed
Water circulating pump has preselected and described two drag a closed cooling water system or the one-to-one closed cooling water system to preselect, and carries out
It is described to close ability of swimming synergic system starting step.
5. the start-up and shut-down control method according to any one of claim 2-4, which is characterized in that if three encloseds are followed
There is one or more to run in ring water pump, carries out the starting step that puts into operation.
6. the start-up and shut-down control method according to any one of claim 2-4, which is characterized in that the Starting mode includes：
Start the one-to-one closed cooling water system or start described two and drags a closed cooling water system；
Judge whether the unit valve state information meets the Starting mode in the Starting mode selection information, including：
When starting the one-to-one closed cooling water system, judge the unit valve state information whether be：Two drag one to close
The valve of formula cooling water system is closed and the valve opening of one-to-one closed cooling water system；
When start described two drag a closed cooling water system when, judge the unit valve state information whether be：Two drag one to close
The valve closing of the valve opening and one-to-one closed cooling water system of formula cooling water system.
7. the start-up and shut-down control method according to any one of claim 2-4, which is characterized in that judge in the expansion tank
Water level whether meet preset water level, including：Judge whether the water level in the expansion tank is more than 1000mm.
8. the start-up and shut-down control method according to any one of claim 2-4, which is characterized in that judge enclosed cooling water
The pressure of main pipe whether is more than the first preset pressure and whether expansion tank water level meets preset condition, including：Judge enclosed
Whether the pressure of cooling water main pipe is more than 0.15MPa and whether expansion tank water level is more than 1200mm.
9. the start-up and shut-down control method according to any one of claim 2-4, which is characterized in that judge the enclosed cooling water
Whether the pressure of water main pipe is more than the second preset pressure, including：Judge the enclosed cooling water main pipe pressure whether
More than 0.45MPa.
10. the start-up and shut-down control method according to any one of claim 2-4, which is characterized in that cold according to the enclosed
But water water main pipe pressure information and expansion tank water level information judge whether the pressure of enclosed cooling water main pipe is more than the
Before whether one preset pressure and expansion tank water level meet preset condition, the method further includes：Wait for 10s.
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| CN106247739B (en) * | 2016-09-28 | 2019-01-29 | 华北电力科学研究院有限责任公司 | A kind of thermal power plant's industrial cooling circulating water system and its start-up and shut-down control method |
| CN111947384B (en) * | 2020-09-18 | 2023-12-01 | 中国能源建设集团浙江省电力设计院有限公司 | Combined closed-cycle cooling water system for gas-steam combined cycle power plant |
| CN112879890B (en) * | 2021-02-22 | 2022-08-19 | 西安热工研究院有限公司 | Automatic starting control method for whole process of coal-fired unit based on electric water feeding pump |
| CN114233477B (en) * | 2021-12-13 | 2024-02-20 | 中国船舶重工集团公司第七0三研究所 | Variable flow and variable temperature double-loop closed circulation inter-cooling system of gas turbine |
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| EP2051031A1 (en) * | 2007-10-19 | 2009-04-22 | Envi Con & Plant Engineering GmbH | Cooling water system for power plants and industrial assemblies |
| CN201218558Y (en) * | 2008-05-05 | 2009-04-08 | 洛阳九暖热力设备科技有限公司 | Thermal energy utilization apparatus for cooling circulating water of thermoelectric plant condenser |
| CN103017563A (en) * | 2012-12-09 | 2013-04-03 | 河北建投国融能源服务股份有限公司 | Circulating water running system and running method thereof |
| CN103713607A (en) * | 2013-12-30 | 2014-04-09 | 中国大唐集团科学技术研究院有限公司 | Circulating water system for thermal power plant and operation method thereof |
| CN204007206U (en) * | 2014-08-26 | 2014-12-10 | 淄博百时得能源环保科技有限公司 | Energy-conservation scale protective type steam power plant enclosed cooling recirculation system |
| CN204360229U (en) * | 2014-12-31 | 2015-05-27 | 国家电网公司 | Gas power station closed cooling water system |
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| CN105807803A (en) | 2016-07-27 |
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