CN105806091B - Gas power station open cooling water system and its start-up and shut-down control method - Google Patents
Gas power station open cooling water system and its start-up and shut-down control method Download PDFInfo
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- CN105806091B CN105806091B CN201410853300.4A CN201410853300A CN105806091B CN 105806091 B CN105806091 B CN 105806091B CN 201410853300 A CN201410853300 A CN 201410853300A CN 105806091 B CN105806091 B CN 105806091B
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- 239000000498 cooling water Substances 0.000 title claims abstract description 273
- 238000000034 method Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 254
- 238000001816 cooling Methods 0.000 claims description 22
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 3
- 238000004134 energy conservation Methods 0.000 claims description 2
- 235000013399 edible fruits Nutrition 0.000 claims 2
- 239000007789 gas Substances 0.000 description 18
- 238000010586 diagram Methods 0.000 description 8
- 238000004590 computer program Methods 0.000 description 7
- 235000019628 coolness Nutrition 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000012790 confirmation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011835 investigation Methods 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
- 238000002360 preparation method Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Abstract
The invention provides a kind of gas power station open cooling water system and its start-up and shut-down control method, described start-up and shut-down control method includes：Initialize starting step, unit optimum selection step, the starting step that puts into operation and system and stop step；, it is necessary to which any water circulating pump is run and circulating water outlet main-piping pressure whether is less than predetermined value and whether open type cooling water pump has preselected before starting step is initialized., it is necessary to judge whether open type cooling water pump stops and whether water ring vacuum pump stops before system stops step.By the present invention, the automatic start of open cooling water system under open cooling water system full cut-off state or under the starting state of part, can be realized, original running status when interference sections do not start；Being automatically stopped for open cooling water system is realized under operation.
Description
Technical field
The present invention is on gas power station cooling water technology, especially with regard to a kind of gas power station open type cooling water system
System (open cooling water system) and its start-up and shut-down control method.
Background technology
Gas power station open type cooling water is derived from condenser recirculating cooling water system, suitable for water consumption it is larger, circulation
Cooling water quality can meet that the equipment of requirement and closed-type circulating cooling water heat exchanger provide cooling water source.
Existing open cooling water system can not be realized automatic under gas power station open cooling water system full cut-off state
Change to start and stop with the automation under running status.Gas power station open cooling water system can not be realized in part starting state
Under automation start, and original running status can be disturbed.
The content of the invention
The embodiment of the present invention provides a kind of gas power station open cooling water system and its start-up and shut-down control method, with open type
Under cooling water system full cut-off state or under the starting state of part, the automatic start of open cooling water system is realized；In running status
It is lower to realize being automatically stopped for open cooling water system.
To achieve these goals, the present invention provides a kind of gas power station open cooling water system, described combustion gas heat
Power plant's open cooling water system includes：Two drag an open type cooling water unit, one-to-one open type cooling water unit, three opening/closings
Water plate type heat exchanger, three open type cooling water pumps, two drag an open type automatic water filter, one-to-one open type automatic water filter, two to drag
One open type automatic water filter bypasses and the bypass of one-to-one open type automatic water filter and electrically operated valve；
Described two drag the entrance of an open type automatic water filter entrance and one-to-one open type automatic water filter to connect circulating cooling
Water water supply line, the entrance of three open type cooling water pumps of outlet connection；The outlet of three open type cooling water pumps passes through
Branch feed pipe connection two drags the entrance of an open type cooling water unit, described in the entrance of one-to-one open type cooling water unit and three
The entrance of opening/closing water plate type heat exchanger；Two drag the outlet of an open type cooling water unit, one-to-one open type cooling water unit to go out
The outlet of mouth and three opening/closing water plate type heat exchangers is connected to open circulating water backwater mother by branch's boiled water pipe respectively
Pipe, the open circulating water backwater main pipe are connected to two and drag a recirculated water unit, one-to-one recirculated water unit and tower basin；Two drag one
The bypass of open type automatic water filter is connected to described two and drags an open type automatic water filter, the bypass connection of one-to-one open type automatic water filter
To one-to-one open type automatic water filter；
Described two drag an open type cooling water unit to include three vavuum pump heat exchangers, the one-to-one open type cooling water unit
Including two vavuum pump heat exchangers.
In one embodiment, described gas power station open cooling water system also includes：Open cooling water system program
ACK button, energy saver mode select button are completed in control logic operation button, water filling, and system starts select button, open type cooling
Standby button is thrown in water pump operation quantity select button, the interlocking of open type cooling water pump, and two drag a program control input of opened water automatic water filter
Button and the program control input button of one-to-one opened water automatic water filter.
To achieve these goals, the present invention provides a kind of start and stop control of described gas power station open cooling water system
Method processed, described start-up and shut-down control method include：Initialize starting step, unit optimum selection step and the starting step that puts into operation；Wherein
The initialization starting step includes：
Judge in three open type cooling water pumps whether at least one operation；
If three equal off-duties of open type cooling water pump, receive the inlet and outlet of the opening/closing water plate type heat exchanger
The unlatching feedback information of door, the gateway door of the open type cooling water pump and the unlatching feedback information of bypass door, described two drag one
The outlet portal of open type automatic water filter and the outlet portal of one-to-one open type automatic water filter, judge three opening/closing water plates
Whether the inlet and outlet door of formula heat exchanger has turned on, and whether the gateway door and bypass door of three open type cooling water pumps have been opened
Open, and described two drag whether the outlet portal of outlet portal and one-to-one open type automatic water filter of an open type automatic water filter has been opened
Open；
If not, send open three opening/closing water plate type heat exchangers enter to set out the instruction of door, it is cold to open open type
But water pump gateway door and bypass door, and open described two outlet portals for dragging an open type automatic water filter and one-to-one open type certainly
The instruction of the outlet portal of dynamic water filter；
If it is, into the unit optimum selection step；
The unit optimum selection step includes：
The unit optimum selection inputted according to user starts information and judges the unit starting mode that user selects；
If described unit starting mode is to drag to start under a mode two, judge that described two drag the cooling water unit to be
No water filling is completed, if described two drag a cooling water unit water filling not complete, is sent unlatching described two and is dragged an open type automatic water-filtering
The instruction of 10 seconds of device entrance door；
If described two drag a cooling water unit water filling complete, judge described two drag an open type automatic water filter entrance door and
Whether the one-to-one open type automatic water filter entrance door has been opened, and two drag open type cooling water to the recirculated water of a cooling water unit to return
Whether waterpipe electrically operated gate has been opened, and whether three open type cooling water pump outlet portals have closed, if not, sending described in unlatching
Two drag the instruction of an open type automatic water filter entrance door and the one-to-one open type automatic water filter entrance door, open two drag it is one cold
But the open type cooling water of water dispenser group to recirculated water water return pipeline electrically operated gate instruction, and close three open type cooling water pumps
The instruction of outlet portal；If it is, the starting step that put into operation described in carrying out；
If described unit starting mode judges that the one-to-one cooling water unit opens to start under one-to-one mode
Dynamic whether water filling is completed, if the one-to-one cooling water unit starting water filling does not complete, is sent and is opened the one-to-one open type
The instruction of automatic water filter entrance door predetermined time interval；
If the one-to-one cooling water unit starting water filling is completed, judge that described two drag an open type automatic water filter entrance
Whether door has been opened with the one-to-one open type automatic water filter entrance door, and the open type cooling water of one-to-one cooling water unit extremely circulates
Whether water water return pipeline electrically operated gate has been opened, and whether three open type cooling water pump outlet portals have closed, if not, sending unlatching
Described two drag the instruction of an open type automatic water filter entrance door and the one-to-one open type automatic water filter entrance door, open one and drag
The open type cooling water of one cooling water unit and closes three open types coolings to the instruction of recirculated water water return pipeline electrically operated gate
The instruction of exit of pump door；If it is, the starting step that put into operation described in carrying out；
The described starting step that puts into operation includes：
Judge that described two drag program control and the program control of one-to-one open type automatic water filter of an open type automatic water filter to be
It is no to have put into, if not, sending input described two drags the program control automatic with the one-to-one open type of an open type automatic water filter
The program control instruction of water filter；
If it is, judge whether to have selected energy saver mode；
If non-selected energy saver mode, judge whether to select whether the open type cooling water pump of energy saver mode or pre-selection has been transported
OK, if not, sending the instruction for starting pre-selection open type cooling water pump；
If it is, judge whether to have selected energy saver mode, or the open type cooling water pump of pre-selection outlet electrically operated gate whether
Open, and whether open type cooling water pump outlet main-piping pressure is more than predetermined pressure, whether delay exceedes preset time delay；If not, hair
Go out to open the instruction of the outlet electrically operated gate of the open type cooling water pump of pre-selection；
If it is, judge whether to have selected whether energy saver mode or the interlocking of open type cooling water pump have put into, if not, sending
Put into the instruction of open type cooling water pump interlocking.
In one embodiment, described start-up and shut-down control method also includes：System stops step, and described system stops step
Including：
Judge whether the interlocking of open type cooling pump has dropped out, if not, sending the instruction for exiting the interlocking of open type cooling pump；
If it is, judging whether three open type cooling water pumps have stopped, stopping three open types if not, sending
The instruction of cooling water pump；
If it is, judge whether three open type cooling water pump outlet electrically operated gates have closed, if not, sending closing three
The instruction of open type cooling water pump outlet electrically operated gate.
In one embodiment, the enabled condition of the initialization starting step is：Any water circulating pump operation and recirculated water
Outlet main-piping pressure is less than predetermined value and open type cooling water pump has preselected.
In one embodiment, the predetermined value is 0.1MPa.
In one embodiment, the predetermined time interval is 10 seconds.
In one embodiment, the predetermined pressure is 0.18MPa.
In one embodiment, the preset time delay is 10 seconds.
By the present invention, it can realize that open type cools down under open cooling water system full cut-off state or under the starting state of part
The automatic start of water system, original running status when interference sections do not start；Open type cooling water is realized under operation
System is automatically stopped.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation of the gas power station open cooling water system of the embodiment of the present invention；
Fig. 2 is the start-up and shut-down control method flow diagram of the embodiment of the present invention；
Fig. 3 is the initialization starting step S201 of embodiment of the present invention flow chart；
Fig. 4 is the unit optimum selection step S202 of embodiment of the present invention flow chart；
Fig. 5 is the starting step S203 that puts into operation of embodiment of the present invention flow chart；
Fig. 6 is that the system of the embodiment of the present invention stops the flow chart of step.
Embodiment
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
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
As shown in figure 1, the embodiment of the present invention provides a kind of gas power station open cooling water system, described combustion gas thermoelectricity
Factory's open cooling water system includes：Two drag an open type cooling water unit, one-to-one open type cooling water unit, three opening/closing water
3, three open type cooling water pumps 4, two of plate type heat exchanger drag an open type automatic water filter 5, one-to-one open type automatic water filter 6, two
Drag open type automatic water filter bypass 7 and one-to-one open type automatic water filter bypass 8 and electrically operated valve
In gas power station open cooling water system, the annexation between each several part is as follows：Two drag an open type to filter automatically
The entrance of the entrance of hydrophone 5 and one-to-one open type automatic water filter 6 connection recirculated cooling water water supply line 9, outlet connection three is opened
The entrance of formula cooling water pump 4.The outlet of three open type cooling water pumps 4 one open type cooling water is dragged by the connection of branch's feed pipe 10 two
Entrance, the entrance of one-to-one open type cooling water unit and the entrance of three opening/closing water plate type heat exchangers 3 of unit；Two drag one
The outlet of open type cooling water unit, the outlet of one-to-one open type cooling water unit and three opening/closing water plate type heat exchangers 3 go out
Mouth is connected to open circulating water backwater main pipe 12 by branch's boiled water pipe 11 respectively, and open circulating water backwater main pipe 12 is connected to two
Dragging a recirculated water unit, one-to-one recirculated water unit and tower basin, (two drag a recirculated water unit, one-to-one circulation not shown in Fig. 1
The schematic diagram of water dispenser group and tower basin, only shows).Two, which drag open type automatic water filter bypass 7 to be connected to described two, drags an open type certainly
Dynamic water filter 5, one-to-one open type automatic water filter bypass 8 are connected to one-to-one open type automatic water filter 6.
Two drag an open type cooling water unit to include three vavuum pump heat exchangers 1, and one-to-one open type cooling water unit includes two
Platform vavuum pump heat exchanger 2.
The open cooling water system of the present invention is cooled down by open type cooling water pump, open type cooling water automatic water filter, opening/closing
Water- to-water heat exchanger, water ring vacuum pump heat exchanger and pipeline, valve and related thermal technology's measuring point composition, section of tubing and valve therein
Door is conventional equipment, be will not be repeated here.The effect of open type cooling water pump is to provide pressure head for open type cooling water, and driving open type is cold
But water flows through the cooling water heat exchanger of each subsidiary engine equipment of gas power station.Open type automatic water filter is to prevent larger impurity
Grain enters open type cooling water pump, causes the phenomenon of open type cooling water pump shaft bite or locking.Cooling water heat exchanger, including cooling are closed
The opening/closing cooling water heat exchanger of formula water and the cooling water heat exchanger of cooling vacuum pump.The effluent of opening/closing cooling water heat exchanger one
Enclosed cooling water is crossed, open type cooling water is flowed through in side, and enclosed cooling water cools down water cooling by the heat exchanger by open type；Water ring is true
Open type cooling water is flowed through in the cooling water heat exchanger of empty pump, side, and the working water that water ring vacuum pump includes high heat is flowed through in side, this
A little working waters cool down water cooling by the heat exchanger by open type.Open type cooling water is driven by open type cooling water pump, cold by open type
But waterpipe reaches each cooling water heat exchanger, controls open type cooling water to flow through by controlling the aperture of each user's valve each
The flow of cooling water heat exchanger, so as to reach the purpose of the cooled Temperature of Working of control.
In gas power station open cooling water system shown in Fig. 1,Represent electrically operated valve.
Multiple buttons are also provided with the gas power station open cooling water system, including：Open cooling water system program
ACK button 14, energy saver mode select button 15 are completed in control logic operation button 13, water filling, and system starts select button 16,
Standby button 18 is thrown in open type cooling water pump operation quantity select button 17, the interlocking of open type cooling water pump, and two drag an opened water to filter automatically
The program control input button 19 of hydrophone and the program control input button 20 of one-to-one opened water automatic water filter.
As shown in Fig. 2 the embodiment of the present invention provides a kind of start-up and shut-down control method, the gas power station shown in application drawing 1 is opened
Formula cooling water system, described start-up and shut-down control method include：
S201：Initialize starting step；
S202：Unit optimum selection step；And
S203：Put into operation starting step.
As shown in figure 3, initialization starting step S201 includes：
S301：Judge in three open type cooling water pumps whether at least one operation.
If three equal off-duties of open type cooling water pump, S302 is carried out.Whether run in open type cooling water pump, can be according to being
It is no to receive the operation information of closed cycle water pump feedback, if receiving the operation information of a certain closed cycle water pump feedback,
Then judge that the closed cycle water pump has put into operation.The interference original running status of closed cooling water system is avoided, is also avoided
The repeated priming work of enclosed cooling water pump.
S302：Judge the inlet and outlet door of three opening/closing water- to-water heat exchangers, the gateway door of three open type cooling water pumps and side
Whether road door has turned on, and two drag the outlet portal of outlet portal and one-to-one open type automatic water filter of an open type automatic water filter to be
It is no to have turned on.
When it is implemented, need to receive the unlatching feedback information of the inlet and outlet door of the opening/closing water plate type heat exchanger, institute
The gateway door of open type cooling water pump and the unlatching feedback information of bypass door are stated, described two drag the outlet of an open type automatic water filter
The outlet portal of door and one-to-one open type automatic water filter, the inlet and outlet of three opening/closing water plate type heat exchangers are judged according to this
Whether door (6 doors) has turned on, and whether the gateway door and bypass door (7 doors) of three open type cooling water pumps have turned on,
And whether described two drag the outlet portal (2 doors) of the outlet portal of an open type automatic water filter and one-to-one open type automatic water filter
Open, if having one or more in above-mentioned 15 doors to open, it is necessary into S303, it is described opening/closing to send unlatching three
Formula water plate type heat exchanger enters to set out the instruction of door, opens open type cooling water pump gateway door and bypass door, and described in unlatching
Two drag the instruction of the outlet portal of an open type automatic water filter and the outlet portal of one-to-one open type automatic water filter, to open above-mentioned 15
Individual door.
If the inlet and outlet door of three opening/closing water plate type heat exchangers has turned on, three open type cooling water pumps
Gateway door and bypass door have turned on, and described two drag the outlet portal of an open type automatic water filter and one-to-one open type to filter automatically
The outlet portal of hydrophone has turned on, into the unit optimum selection step.
As shown in figure 4, the unit optimum selection step S202 includes：
S401：The unit optimum selection for receiving user's input starts information.
S402：The unit optimum selection inputted according to user starts information and judges the unit starting mode that user selects.
If described unit starting mode is to drag to start under a mode two, S403 is carried out；If described unit opens
Flowing mode carries out S407 to start under one-to-one mode.
S403：Judge described two drag a cooling water unit whether water filling complete.
If dragging a cooling water unit water filling to complete confirmation when it is implemented, receiving the two of feedback, represent that two drag
One cooling water unit water filling is completed, and is dragged a cooling water unit water filling to complete confirmation if not receiving the two of feedback, is represented
Two drag a cooling water unit water filling not complete.If described two drag a cooling water unit water filling not complete, into S404, send out
Described two instructions for dragging an open type automatic water filter entrance door predetermined time interval are opened, to complete two notes for dragging a cooling water unit
Water.If described two drag a cooling water unit water filling to complete, S405 is carried out.The predetermined time interval can be 10 seconds, the present invention
It is not limited.
S405：Judge that described two drag an open type automatic water filter entrance door and the one-to-one open type automatic water filter entrance
Whether door has been opened, and two drag whether open type cooling water to the recirculated water water return pipeline electrically operated gate of a cooling water unit has been opened, and three
Whether the open type cooling water pump outlet portal has closed.
When it is implemented, can be by judging whether that receiving two drags a feedback information, this two drags a feedback information to include
Two drag the feedback that the feedback that an open type automatic water filter entrance door opened, one-to-one open type automatic water filter entrance door opened, two
Drag the feedback and three open type coolings that the open type cooling water of a cooling water unit has been opened to recirculated water water return pipeline electrically operated gate
The feedback that exit of pump door has closed, if not receiving above-mentioned all feedbacks, S406 is carried out, send unlatching two and drag a control
Instruction, for dragging an open type automatic water filter entrance door, unlatching one-to-one open type automatic water filter entrance door, unlatching to open two
Two drag the open type cooling water of a cooling water unit to recirculated water water return pipeline electrically operated gate and close three open type cooling water pumps
Outlet portal.The unlatching two drags a control instruction to include：Described two drag an open type automatic water filter entrance door to be opened with the one-to-one
The instruction of formula automatic water filter entrance door, open two and drag the open type cooling water of a cooling water unit electronic to recirculated water water return pipeline
The instruction of door, and close the instruction of three open type cooling water pump outlet portals.
If described two have dragged an open type automatic water filter entrance door and the one-to-one open type automatic water filter entrance door
Open, two drag open type cooling water to the recirculated water water return pipeline electrically operated gate of a cooling water unit to open, and three open type coolings
Exit of pump door has closed, the starting step that put into operation described in progress S203.
S407：Judge the one-to-one cooling water unit whether complete by water filling.
When it is implemented, if confirmation is completed in the one-to-one cooling water unit water filling for receiving feedback, represent that one drags
One cooling water unit water filling is completed, if confirmation is completed in the one-to-one cooling water unit water filling for not receiving feedback, is represented
One-to-one cooling water unit water filling does not complete.If the one-to-one cooling water unit water filling does not complete, into S408, send out
The instruction of the one-to-one open type automatic water filter entrance door predetermined time interval is opened, to complete the note of one-to-one cooling water unit
Water.If the one-to-one cooling water unit water filling is completed, S409 is carried out.The predetermined time interval can be 10 seconds, the present invention
It is not limited.
S409：Judge that described two drag an open type automatic water filter entrance door and the one-to-one open type automatic water filter entrance
Whether door has been opened, and whether open type cooling water to the recirculated water water return pipeline electrically operated gate of one-to-one cooling water unit has been opened, and three
Whether the open type cooling water pump outlet portal has closed.
When it is implemented, can be by judging whether to receive one-to-one feedback information, the one-to-one feedback information includes
Two drag the feedback that the feedback that an open type automatic water filter entrance door opened, one-to-one open type automatic water filter entrance door opened, one
Drag the feedback and three open type coolings that the open type cooling water of a cooling water unit has been opened to recirculated water water return pipeline electrically operated gate
The feedback that exit of pump door has closed, if not receiving above-mentioned all feedbacks, S410 is carried out, send and open one-to-one control
Instruction, for dragging an open type automatic water filter entrance door, unlatching one-to-one open type automatic water filter entrance door, unlatching to open two
The open type cooling water of one-to-one cooling water unit is to recirculated water water return pipeline electrically operated gate and closes three open type cooling water pumps
Outlet portal.The unlatching one-to-one control instruction includes：Described two drag an open type automatic water filter entrance door to be opened with the one-to-one
The instruction of formula automatic water filter entrance door, the open type cooling water for opening one-to-one cooling water unit are electronic to recirculated water water return pipeline
The instruction of door, and close the instruction of three open type cooling water pump outlet portals.
If described two have dragged an open type automatic water filter entrance door and the one-to-one open type automatic water filter entrance door
Open, open type cooling water to the recirculated water water return pipeline electrically operated gate of one-to-one cooling water unit has been opened, and three open type coolings
Exit of pump door has closed, the starting step that put into operation described in progress S203.
As shown in figure 5, the described starting step S203 that puts into operation includes：
S501：Judge the described two program control and journeys of the one-to-one open type automatic water filter for dragging an open type automatic water filter
Whether control has put into.
When it is implemented, can with according to whether receive that two automatic water filters send it is program control thrown feedback, judge that two drag
Whether the program control of the program control and one-to-one open type automatic water filter of one open type automatic water filter has put into, if only received
Two drag the program control of an open type automatic water filter to throw feedback or only received the program control of one-to-one open type automatic water filter and thrown
Feedback, into S502, send the program control and one-to-one open type automatic water-filtering that input described two drags an open type automatic water filter
The program control instruction of device, the program control and one-to-one open type of an open type automatic water filter is dragged to filter automatically with control input described two
Hydrophone it is program control.
If two drag the program control whether equal of the program control and one-to-one open type automatic water filter of an open type automatic water filter
It has been put into that, into S503.
S503：Judge whether to have selected energy saver mode.
If having selected energy saver mode, the starting step that puts into operation terminates.If non-selected energy saver mode, into S504.
S504：Judge whether to select whether the open type cooling water pump of energy saver mode or pre-selection has run.
If non-selected energy saver mode and the open type cooling water pump off-duty preselected, into S505, it is pre- to send startup
Select the instruction of open type cooling water pump.If selection energy saver mode or the open type cooling water pump of pre-selection have been run, into S506.
If it should be noted that judge to have in three closed cycle water pumps any one or any two in S301
It has been run that, then into S504.
S506：Judge whether to have selected whether energy saver mode, or the outlet electrically operated gate of the open type cooling water pump of pre-selection have been opened,
And whether open type cooling water pump outlet main-piping pressure is more than predetermined pressure, whether delay exceedes preset time delay.The predetermined pressure
Can be 0.18MPa, the preset time delay can be 10 seconds, and the present invention is not limited.
In particular it is required that judge whether (1) has selected energy saver mode, or judge the open type cooling water pump of (2) pre-selection
Whether outlet electrically operated gate has been opened, and whether open type cooling water pump outlet main-piping pressure is more than predetermined pressure, and it is pre- whether delay exceedes
Fixed response time, if above-mentioned (1) or (2) are unsatisfactory for (being no), into S507, send the open type cooling water pump of unlatching pre-selection
Export the instruction of electrically operated gate.If above-mentioned (1) or (2) are not, S508 is carried out.
S508：Judge whether to have selected whether energy saver mode or the interlocking of open type cooling water pump have put into.
If having selected energy saver mode or open type cooling water pump to interlock and put into, the starting step that puts into operation terminates.If not, enter
Enter S509, send the instruction of input open type cooling water pump interlocking.
In one embodiment, as shown in fig. 6, the start-up and shut-down control method of the embodiment of the present invention also includes：System stops step,
Described system, which stops step, to be included：
S601：Judge whether the interlocking of open type cooling pump has dropped out.
If the interlocking of open type cooling pump is not exited, S602 is carried out, sends the instruction for exiting the interlocking of open type cooling pump；If open
The interlocking of formula cooling pump has dropped out, and carries out S603.
S603：Judge whether three open type cooling water pumps have stopped.
If the open type cooling water pump not stopped in three open type cooling water pumps be present, into S604, send and stop
The only instruction of three open type cooling water pumps.If stop in three open type cooling water pumps, into S605.
S605：Judge whether three open type cooling water pump outlet electrically operated gates have closed.If three open type coolings
Exit of pump electrically operated gate has been closed, and system stops step and terminated.If three open type cooling water pump outlet electrically operated gates are present
The open type cooling water pump being not turned off, into S606, send the instruction for closing three open type cooling water pump outlet electrically operated gates.
In one embodiment, initialization starting step 201 allows the condition of beginning to be：Any water circulating pump operation and circulation
Water out main-piping pressure is less than predetermined value and open type cooling water pump has preselected, and the predetermined value can be set to 0.1MPa, and the present invention is not
As limit.
In one embodiment, the enabled condition of system stopping step 203 is：Enclosed cooling water pump stops and water ring vacuum pump
Stop.
Each step of the start-up and shut-down control method (programed logic programed control logic) of the present invention, need
First to judge whether feedback receives, continue in next step if receiving；If do not received, instruction is sent, waits to be feedback receive.
Specifically should be noted it is following some：1) two water fillings completion ACK buttons are not put into；2) after selecting the selection of energy saver mode button,
Mean not start open type cooling water pump, but supplied water by opening open type cooling water pump bypass door to heat exchanger；3) journey is put into
Before controlling logic, it is that " two drag one " or " one-to-one " to select activation system；4) before putting into programmed logic, selection will run the number of pump
Amount；5) before putting into programmed logic, standby button selection pre-selection pump is thrown by interlocking.
, can be pre- by the open type cooling water pump block push button on the gas power station open cooling water system shown in Fig. 1
Select No. 3 No. 1 pump, No. 2 pumps of pre-selection and pre-selection pumps.The button is applied particularly to S504 to S506, in S504, instructs and is preselected to start
Pump；In S506, instruct to open the outlet electrically operated gate of pre-selection pump.
Quantity select button is run by clicking open type cooling water pump, selects the method for operation of open type cooling water pump, including
" single pump operation ", " double pump operation " and " three pump operations " these three modes.The button is applied particularly to S504 to S506, S504
In, to start the pre-selection pump of respective numbers；In S506, the outlet electrically operated gate of the pre-selection pump of respective numbers is opened.
When the present invention start-up and shut-down control method proceed to a certain step, when not receiving due feedback signal, programme-control
Logic can rest on the step, wait manual operation.Power plant operations staff can find the unreceived feedback letter of current operating procedure
Number, artificially judge whether unreceived feedback signal influences continuing executing with for programed logic.If the feedback signal does not influence
Present procedure control logic continues, and operations staff can operate the execution that leapfrog action continues programed logic；If
The feedback signal influences continuing for present procedure control logic, then operations staff can not meet according to each found
Feedback signal, targetedly go investigation problem, until receive the feedback signal, continue executing with programed logic.
The start-up and shut-down control method of the present invention can automatically engage the interlocking of open type cooling water pump, after interlocking input, when there is open type
When cooling water pump is run and open cooling water system pressure is less than certain definite value；Or when having any open type cooling water pump tripping operation,
With another open type cooling water pump of interlocked startup, so as to ensure that open cooling water system main-piping pressure is normal.
The start-up and shut-down control method of the present invention can realize four big functions：Firstth, under open cooling water system full cut-off state,
Realize the automatic start of open cooling water system；And under operation, realize being automatically stopped for open cooling water system.The
2nd, in the state of starting in open cooling water system part, the automatic start of open cooling water system is realized, and do not disturb original
Running status.3rd, when programed logic is run to a certain step, condition is unsatisfactory for, if artificially judging, the condition can
Ignore, the operation that leapfrog action continues programed logic can be carried out manually, until step sequence finishes.4th, combustion gas is realized
The energy saver mode selection of steam power plant's open cooling water system.When cooling user's thermic load is larger, energy saver mode is not selected, the journey
Control starts logic and starts open type cooling water pump, and each cooling user is supplied to by open type cooling water pump driving open type cooling water；When cold
But when user's thermic load is smaller, energy saver mode is selected, the program control startup logic does not start open type cooling water pump, is cooled down by open type
Water pump bypasses, and each cooling user is supplied to by circulating cooling water pump driving open type cooling water, so as to realize energy-conservation purpose.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more
The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed 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 individual square frame or multiple square frames.
Apply specific embodiment in the present invention to be set forth the principle and embodiment of the present invention, above example
Explanation be only intended 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 specific embodiments and applications, in summary, in this specification
Appearance should not be construed as limiting the invention.
Claims (9)
- A kind of 1. gas power station open cooling water system, it is characterised in that described gas power station open cooling water system Including：Two drag an open type cooling water unit, one-to-one open type cooling water unit, three opening/closing water plate type heat exchangers, three open Formula cooling water pump, two drag an opened water automatic water filter, one-to-one opened water automatic water filter, two to drag an opened water automatic water-filtering Device bypasses and the bypass of one-to-one opened water automatic water filter and electrically operated valve；Described two drag the entrance of an opened water automatic water filter entrance and one-to-one opened water automatic water filter to connect circulating cooling Water water supply line, the entrance of three open type cooling water pumps of outlet connection；The outlet of three open type cooling water pumps passes through Branch feed pipe connection two drags the entrance of an open type cooling water unit, described in the entrance of one-to-one open type cooling water unit and three The entrance of opening/closing water plate type heat exchanger；Two drag the outlet of an open type cooling water unit, one-to-one open type cooling water unit to go out The outlet of mouth and three opening/closing water plate type heat exchangers is connected to open circulating water backwater mother by branch's boiled water pipe respectively Pipe, the open circulating water backwater main pipe are connected to two and drag a recirculated water unit, one-to-one recirculated water unit and tower basin；Two drag one The bypass of opened water automatic water filter is connected to described two and drags an opened water automatic water filter, by one-to-one opened water automatic water filter Road is connected to one-to-one opened water automatic water filter；Described two drag an open type cooling water unit to include three vavuum pump heat exchangers, and the one-to-one open type cooling water unit includes Two vavuum pump heat exchangers.
- 2. gas power station open cooling water system according to claim 1, it is characterised in that described gas power station Open cooling water system also includes：ACK button, energy-conservation are completed in open cooling water system programed logic operation button, water filling Mode selecting button, system start select button, and open type cooling water pump operation quantity select button, the interlocking of open type cooling water pump are thrown Standby button, two drag the program control input button of an opened water automatic water filter and the program control input of one-to-one opened water automatic water filter to press Button.
- 3. a kind of start-up and shut-down control method of gas power station open cooling water system applied to described in claim 1, its feature It is, described start-up and shut-down control method includes：Initialize starting step, unit optimum selection step and the starting step that puts into operation；WhereinThe initialization starting step includes：Judge in three open type cooling water pumps whether at least one operation；If three equal off-duties of open type cooling water pump, the inlet and outlet door of the opening/closing water plate type heat exchanger is received Feedback information, the gateway electrically operated gate of the open type cooling water pump and the unlatching feedback information of bypass door are opened, described two drag one The outlet portal of opened water automatic water filter and the outlet portal of one-to-one opened water automatic water filter, judge three opening/closings Whether the inlet and outlet door of water plate type heat exchanger has turned on, and the gateway electrically operated gate and bypass door of three open type cooling water pumps are It is no to have turned on, and described two drag the outlet portal of an opened water automatic water filter and the outlet portal of one-to-one opened water automatic water filter Whether have turned on；If not, sending the instruction for the inlet and outlet door for opening three opening/closing water plate type heat exchangers, open type cooling water is opened Entrance electrically operated gate and bypass door are pumped out, and opens described two outlet portals and one-to-one open type for dragging an opened water automatic water filter The instruction of the outlet portal of water automatic water filter；If it is, into the unit optimum selection step；The unit optimum selection step includes：The unit optimum selection inputted according to user starts information and judges the unit starting mode that user selects；If described unit starting mode is to drag to start under a mode two, judge that described two drag the open type cooling water unit to be No water filling is completed, if described two drag an open type cooling water unit water filling not complete, is sent unlatching described two and is dragged an opened water certainly The instruction of dynamic water filter entrance door predetermined time interval；If described two drag an open type cooling water unit water filling to complete, judge that described two drag an opened water automatic water filter entrance door Whether opened with the one-to-one opened water automatic water filter entrance door, two drag the open type cooling water of an open type cooling water unit extremely Whether recirculated water water return pipeline electrically operated gate has been opened, and whether three open type cooling water pump outlet electrically operated gates have closed, if not, Send unlatching described two and drag an opened water automatic water filter entrance door and the one-to-one opened water automatic water filter entrance door Instruction, open two and drag the open type cooling water of an open type cooling water unit to the instruction of recirculated water water return pipeline electrically operated gate, Yi Jiguan Close the instruction of three open type cooling water pump outlet electrically operated gates；If it is, the starting step that put into operation described in carrying out；If described unit starting mode judges that the one-to-one open type cooling water unit opens to start under one-to-one mode Dynamic whether water filling is completed, if the one-to-one open type cooling water unit starting water filling does not complete, is sent and is opened the one-to-one The instruction of opened water automatic water filter entrance door predetermined time interval；If the one-to-one open type cooling water unit starting water filling is completed, judge that described two drag an opened water automatic water filter to enter Whether mouth door has been opened with the one-to-one opened water automatic water filter entrance door, the open type cooling of one-to-one open type cooling water unit Whether water to recirculated water water return pipeline electrically operated gate has been opened, and whether three open type cooling water pump outlet electrically operated gates have closed, such as Fruit is no, sends unlatching described two and drags an opened water automatic water filter entrance door and the one-to-one opened water automatic water filter entrance Door instruction, open one-to-one open type cooling water unit open type cooling water to recirculated water water return pipeline electrically operated gate instruction, with And close the instruction of three open type cooling water pump outlet electrically operated gates；If it is, the starting step that put into operation described in carrying out；The described starting step that puts into operation includes：Judge that described two drag program control and the program control of one-to-one opened water automatic water filter of an opened water automatic water filter to be It is no to have put into, if not, sending the program control and one-to-one opened water that input described two drags an opened water automatic water filter The program control instruction of automatic water filter；If it is, judge whether to have selected energy saver mode；If non-selected energy saver mode, judge whether to select whether the open type cooling water pump of energy saver mode or pre-selection has run, such as Fruit is no, sends the instruction for starting pre-selection open type cooling water pump；If it is, judge whether to have selected whether energy saver mode, or the outlet electrically operated gate of the open type cooling water pump of pre-selection have been opened, and Whether open type cooling water pump outlet main-piping pressure is more than predetermined pressure, and whether delay exceedes preset time delay；If not, send unlatching The instruction of the outlet electrically operated gate of the open type cooling water pump of pre-selection；If it is, judge whether to have selected whether energy saver mode or the interlocking of open type cooling water pump have put into, if not, sending input The instruction of open type cooling water pump interlocking.
- 4. start-up and shut-down control method according to claim 3, it is characterised in that described start-up and shut-down control method also includes：System System stops step, and described system, which stops step, to be included：Judge whether the interlocking of open type cooling water pump has dropped out, if not, sending the instruction for exiting the interlocking of open type cooling water pump；If it is, judge whether three open type cooling water pumps have stopped, if not, sending the open type cooling of stopping three The instruction of water pump；If it is, judge whether three open type cooling water pump outlet electrically operated gates have closed, if not, sending described in closing three Open type cooling water pump exports the instruction of electrically operated gate.
- 5. start-up and shut-down control method according to claim 4, it is characterised in that the enabled condition of the initialization starting step It is：Any water circulating pump is run and circulating water outlet main-piping pressure is less than predetermined value and open type cooling water pump has preselected.
- 6. start-up and shut-down control method according to claim 5, it is characterised in that the predetermined value is 0.1MPa.
- 7. the start-up and shut-down control method according to any one of claim 3-5, it is characterised in that the predetermined time interval is 10 seconds.
- 8. the start-up and shut-down control method according to any one of claim 3-5, it is characterised in that the predetermined pressure is 0.18MPa。
- 9. the start-up and shut-down control method according to any one of claim 3-5, it is characterised in that the preset time delay is 10 Second.
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| CN201410853300.4A CN105806091B (en) | 2014-12-31 | 2014-12-31 | Gas power station open cooling water system and its start-up and shut-down control method |
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| JP2012158663A (en) * | 2011-01-31 | 2012-08-23 | Japan Oil Gas & Metals National Corp | Temperature control system |
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| CN103282734A (en) * | 2010-05-27 | 2013-09-04 | 江森自控科技公司 | Thermosyphon coolers for cooling systems with cooling towers |
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| CN204373441U (en) * | 2014-12-31 | 2015-06-03 | 国家电网公司 | Gas power station open cooling water system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2442743A (en) * | 2006-10-12 | 2008-04-16 | Energetix Group Ltd | A Closed Cycle Heat Transfer Device |
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|---|---|---|---|---|
| CN103282734A (en) * | 2010-05-27 | 2013-09-04 | 江森自控科技公司 | Thermosyphon coolers for cooling systems with cooling towers |
| JP2012158663A (en) * | 2011-01-31 | 2012-08-23 | Japan Oil Gas & Metals National Corp | Temperature control system |
| CN202581269U (en) * | 2012-04-26 | 2012-12-05 | 沈阳德英众华科技有限公司 | Superconducting heat-exchange system of waste heat of boiler |
| CN104048535A (en) * | 2014-06-18 | 2014-09-17 | 黄翔 | Industrial wastewater heat energy exchange device |
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