CN105806012A - Circulating cooling water system for gas-fired thermal power plant and start and stop control method of circulating cooling water system - Google Patents
Circulating cooling water system for gas-fired thermal power plant and start and stop control method of circulating cooling water system Download PDFInfo
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- CN105806012A CN105806012A CN201410854654.0A CN201410854654A CN105806012A CN 105806012 A CN105806012 A CN 105806012A CN 201410854654 A CN201410854654 A CN 201410854654A CN 105806012 A CN105806012 A CN 105806012A
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Abstract
The invention provides a circulating cooling water system for a gas-fired thermal power plant and a start and stop control method of the circulating cooling water system. The circulating cooling water system for the gas-fired thermal power plant comprises a two-to-one circulating cooling water system, a one-to-one circulating cooling water system, a circulating cooling water system backwater mother pipe, a circulating cooling water system inflow mother pipe, 12 induced draft towers, 4 circulating water pumps, a circulating water common suction front tank and 2 circulating water return interconnection valves. By adoption of the circulating cooling water system and the start and stop control method thereof, the circulating cooling water system for the gas-fired thermal power plant can be automatically started in a full-stop or partial-start state without interfering with the original running state during partial start and can also be automatically stopped in the running state.
Description
Technical field
The present invention cools down water technology about gas power station, especially with regard to a kind of gas power station recirculating cooling water system and on off control method thereof.
Background technology
The effect of gas power station recirculating cooling water system is that recirculated cooling water is delivered to condenser water side, to cool down turbine low pressure cylinder steam discharge, maintains the vacuum of condenser, makes steam/water circulating be continued；It addition, recirculating cooling water system also provides water source to open cooling water system.But, existing recirculating cooling water system cannot under full cut-off state, realize the automatic startup of recirculating cooling water system, also cannot be under operation, realize being automatically stopped of recirculating cooling water system, also cannot when recirculating cooling water system part start, it is achieved the automatic startup of recirculating cooling water system, and original running status can be disturbed.
Summary of the invention
The embodiment of the present invention provides a kind of gas power station recirculating cooling water system and on off control method thereof, with under gas power station recirculating cooling water system full cut-off state or under part starting state, realize the automatic startup of gas power station recirculating cooling water system, original running status when interference sections does not start；Realize being automatically stopped of gas power station recirculating cooling water system under operation.
To achieve these goals, the embodiment of the present invention provides a kind of gas power station recirculating cooling water system, described gas power station recirculating cooling water system includes: two drag a recirculating cooling water system, one-to-one recirculating cooling water system, recirculating cooling water system backwater mother pipe, recirculating cooling water system water inlet mother's pipe, 12 mechanical draft towers, four water circulating pumps, the public water suction forebay of recirculated water and two recirculated water backwater communicating doors；
The female pipe of described recirculating cooling water system water inlet connects one-to-one recirculating cooling water system and two respectively and drags the water inlet of a recirculating cooling water system, and described recirculating cooling water system backwater mother's pipe connects one-to-one recirculating cooling water system and two respectively and drags the outlet of a recirculating cooling water system；Four described water circulating pumps are connected on the pipeline between described recirculating cooling water system water inlet mother's pipe and the public water suction forebay of described recirculated water；6 described mechanical draft towers are arranged on the side of the public water suction forebay of described recirculated water, other 6 described mechanical draft towers are arranged on the opposite side of the public water suction forebay of described recirculated water, and each mechanical draft tower is both connected between described recirculated water public water suction forebay and described recirculating cooling water system backwater mother's pipe.
In one embodiment, described gas power station recirculating cooling water system also includes: system start-up select button, water circulating pump runs quantity select button, subgroup control knob, water filling completes ACK button, two drag a recirculating cooling water system to one-to-one recirculating cooling water system water filling button, and one-to-one recirculating cooling water system drags a recirculating cooling water system water filling button to two, and water circulating pump throws standby button and water circulating pump programed logic operation button #1, #2, #3, #4.
In one embodiment, described gas power station recirculating cooling water system also includes: four low alarm switches of circulation-water pump electric machine cooling water flow, it is respectively connecting to the first water circulating pump, the second water circulating pump, one of them of the 3rd water circulating pump and the 4th water circulating pump.
To achieve these goals, the embodiment of the present invention provides a kind of on off control method, is applied to above-mentioned gas power station recirculating cooling water system, it is characterised in that described on off control method includes:
Judge the water circulating pump that whether there is operation in four described water circulating pumps；
If it does not, the startup receiving user selects request, start, according to described, the Starting mode that selection request judges the selection of user；
If user's Starting mode for starting under " two drag one " mode, it is judged that except " two drag one " condenser cooling water access doors and outlet portal, whether all valves are all turned off；If it does not, valvular instruction outside sending closedown " two drag one " condenser cooling water access doors and outlet portal；
If it is, judge that described two drag whether a recirculating cooling water system inner valve all has turned on；Described two instructions dragging a recirculating cooling water system inner valve are opened if it does not, send；
If user's Starting mode is start under " one-to-one " mode, it is judged that except " one-to-one " condenser cooling water access doors and outlet portal, whether all valves are all turned off；If it does not, valvular instruction outside sending closedown " one-to-one " condenser cooling water access doors and outlet portal；
If it is, judge whether described one-to-one recirculating cooling water system inner valve all has turned on；If it does not, send the instruction opening described one-to-one recirculating cooling water system inner valve；
If described two drag a recirculating cooling water system inner valve all to have turned on or described one-to-one recirculating cooling water system inner valve all has turned under " one-to-one " mode under " two drag one " mode, it is judged that whether preliminary election water circulating pump outlet hydraulic butterfly valve is to predetermined aperture；If it does not, send out the instruction of preliminary election water circulating pump outlet hydraulic butterfly valve；
If it is, judge whether preliminary election water circulating pump outlet hydraulic butterfly valve is not less than described predetermined aperture, and time delay 2 seconds；If it does not, stop the instruction of preliminary election water circulating pump outlet hydraulic butterfly valve in sending；
If it is, judge whether preliminary election water circulating pump runs；If it does not, send the instruction starting preliminary election water circulating pump；
If it is, judge that described two drag a recirculating cooling water system or described one-to-one recirculating cooling water system whether water filling completes；
If it is, judge water circulating pump outlet hydraulic butterfly valve whether standard-sized sheet, and whether described water circulating pump outlet main-piping pressure is more than setting value, and described two drag whether a recirculating cooling water system or described one-to-one recirculating cooling water system condenser water box emptying door all close；If it does not, send open cycle exit of pump hydraulic butterfly valve, close two instructions dragging a recirculating cooling water system or one-to-one recirculating cooling water system condenser water box emptying door；
If it is, judge whether " big the United Nations General Assembly " or " little " puts into, or whether four water circulating pump interlockings put into, or whether all water circulating pumps all run, and water circulating pump subgroup controls whether to put into；If it does not, send as given an order: throw water circulating pump subgroup and control；And throw " big the United Nations General Assembly " or " little ".
In one embodiment, described on off control method also includes:
Judge that water circulating pump subgroup controls whether to have dropped out and whether time delay 10 seconds；If it does not, send water circulating pump to run the instruction that number of units subtracts 1 and exits the control of water circulating pump subgroup；
If it is, judge that whether preliminary election water circulating pump outlet hydraulic butterfly valve aperture is less than predetermined number of degrees with respect；If it does not, send the instruction closing preliminary election water circulating pump outlet hydraulic butterfly valve；
If it is, judge whether preliminary election water circulating pump stops, and whether preliminary election water circulating pump outlet hydraulic butterfly valve closes；If it does not, send stopping preliminary election water circulating pump, and close the instruction of preliminary election water circulating pump outlet hydraulic butterfly valve；
If it is, judge whether all water circulating pumps all stop；
If all water circulating pumps all stop, it is judged that water circulating pump is program control and water circulating pump subgroup controls whether to have dropped out；The instruction that water circulating pump is program control and water circulating pump subgroup controls is exited if it does not, send.
In one embodiment, described on off control method also includes: described two drag a recirculating cooling water system to the step of described one-to-one recirculating cooling water system water filling, including:
Judge that " two drag one " that whether user press in water filling button is to " one-to-one " water filling button；
If it is, judge whether one-to-one recirculating cooling water system condenser intake gate is opened, and whether one-to-one recirculating cooling water system condenser water box steam discharge door is opened；Open one-to-one recirculating cooling water system condenser intake gate, unlatching one-to-one recirculating cooling water system condenser backwater door 20 seconds if it does not, send and open the instruction of one-to-one recirculating cooling water system condenser water box steam discharge door；
If it is, judge that described two drag a recirculating cooling water system to whether described one-to-one recirculating cooling water system water filling completes；
If it is, judge whether one-to-one recirculating cooling water system condenser water box steam discharge door closes, and whether one-to-one recirculating cooling water system condenser backwater door is opened；Close one-to-one recirculating cooling water system condenser water box steam discharge door if it does not, send and open the instruction of one-to-one recirculating cooling water system condenser backwater door.
In one embodiment, described on off control method also includes: described one-to-one recirculating cooling water system to described two steps dragging a recirculating cooling water system water filling, including:
Judge " one-to-one " to " two drag one " the water filling button whether user presses in water filling button；
If it is, judge that two drag whether a recirculating cooling water system condenser intake gate is opened, and two drag whether a recirculating cooling water system condenser water box steam discharge door is opened；A recirculating cooling water system condenser intake gate, unlatching two is dragged to drag a recirculating cooling water system condenser backwater door 20 seconds and open two instructions dragging a recirculating cooling water system condenser water box steam discharge door if it does not, send unlatching two；
If it is, judge to described two, described one-to-one recirculating cooling water system drags whether a recirculating cooling water system water filling completes；
If it is, judge that two drag whether a recirculating cooling water system condenser water box steam discharge door closes, and two drag whether a recirculating cooling water system condenser backwater door is opened；Drag a recirculating cooling water system condenser water box steam discharge door if it does not, send closedown two and open two instructions dragging a recirculating cooling water system condenser backwater door.
In one embodiment, described setting value is 0.2MPa.
In one embodiment, described predetermined number of degrees with respect is 30 degree.
In one embodiment, described predetermined aperture is the aperture of 15%.
By the present invention, can under gas power station recirculating cooling water system full cut-off state or under part starting state, it is achieved the automatic startup of gas power station recirculating cooling water system, original running status when interference sections does not start；Realize being automatically stopped of gas power station recirculating cooling water system under operation.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the gas power station recirculating cooling water system of the embodiment of the present invention；
Fig. 2 is the structural representation that the two of the embodiment of the present invention drags a recirculating cooling water system；
Fig. 3 is the structural representation of the one-to-one recirculating cooling water system of the embodiment of the present invention；
Fig. 4 is the on off control method flow diagram of the embodiment of the present invention one；
Fig. 5 is the on off control method flow diagram of the embodiment of the present invention two；
Fig. 6 is in the embodiment of the present invention, and two drag a recirculating cooling water system to the method flow diagram of one-to-one recirculating cooling water system water filling；
Fig. 7 is in the embodiment of the present invention, and one-to-one recirculating cooling water system is to two method flow diagrams dragging a recirculating cooling water system water filling.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into 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 recirculating cooling water system, described gas power station recirculating cooling water system includes: two drag a recirculating cooling water system (two drag a unit), one-to-one recirculating cooling water system (one-to-one unit), recirculating cooling water system backwater mother's pipe 11, the female pipe 12 of recirculating cooling water system water inlet, 12 mechanical draft towers 13, four water circulating pumps, the public water suction forebay 15 of recirculated water and two recirculated water backwater communicating doors 16.
The female pipe 12 of recirculating cooling water system water inlet connects one-to-one recirculating cooling water system water inlet 18 and two respectively and drags the water inlet 17 of a recirculating cooling water system, and recirculating cooling water system backwater mother's pipe 11 connects one-to-one recirculating cooling water system outlet 19 and two respectively and drags the outlet 20 of a recirculating cooling water system.
As shown in Figure 1,14 export hydraulic butterfly valve for water circulating pump, four described water circulating pump respectively water circulating pumps 141, water circulating pump 142, water circulating pump 143 and water circulating pump 144, wherein, water circulating pump 141 and water circulating pump 142 are big pump, water circulating pump 143 and water circulating pump 144 are little pump, and namely the power of water circulating pump 141 and water circulating pump 142 is more than water circulating pump 143 and water circulating pump 144 power.
Water circulating pump 141, water circulating pump 142, water circulating pump 143 and water circulating pump 144 are connected on the pipeline between the female pipe 12 of recirculating cooling water system water inlet and the public water suction forebay 15 of recirculated water.The water inlet of water circulating pump 141, water circulating pump 142, water circulating pump 143 and water circulating pump 144 connects the public water suction forebay 15 of recirculated water, and the outlet of water circulating pump 141, water circulating pump 142, water circulating pump 143 and water circulating pump 144 connects the female pipe 12 of recirculating cooling water system water inlet.
In 12 mechanical draft towers 13, wherein 6 mechanical draft towers 13 are arranged on the side (left side in Fig. 1) of the public water suction forebay 15 of recirculated water, other 6 mechanical draft towers 13 are arranged on the opposite side of the public water suction forebay 15 of described recirculated water, and each mechanical draft tower 13 is both connected between recirculated water public water suction forebay 15 and described recirculating cooling water system backwater mother's pipe 11.
As shown in Figure 1, gas power station recirculating cooling water system also includes: system start-up select button 1, water circulating pump runs quantity select button 2, subgroup control knob 3, water filling completes ACK button 4, water filling button 5 (including: two drag a recirculating cooling water system to drag a recirculating cooling water system water filling button (" one-to-one " in Fig. 1 to " two drag ") to one-to-one recirculating cooling water system water filling button (" two drag " in Fig. 1 to " one-to-one ") and one-to-one recirculating cooling water system to two, water circulating pump throws standby button 6 and water circulating pump programed logic operation button (#1, #2, #3, #4) 7.
As shown in Figure 1, gas power station recirculating cooling water system also includes: four low alarm switches of circulation-water pump electric machine cooling water flow, including: the low alarm switch of 1# circulation-water pump electric machine cooling water flow 21, the low alarm switch of 2# circulation-water pump electric machine cooling water flow 22, the low alarm switch of 3# circulation-water pump electric machine cooling water flow 23, the low alarm switch 24 of 4# circulation-water pump electric machine cooling water flow.The low alarm switch 21 of 1# circulation-water pump electric machine cooling water flow connects water circulating pump 141, the low alarm switch 22 of 2# circulation-water pump electric machine cooling water flow connects water circulating pump 142, the low alarm switch of 3# circulation-water pump electric machine cooling water flow 23 connects the low alarm switch 24 of water circulating pump 143,4# circulation-water pump electric machine cooling water flow and connects water circulating pump 144.
The effect of water circulating pump is to provide pressure head for recirculated cooling water, drives recirculated cooling water to flow through the heat exchanger tube cooling turbine discharge of gas power station condenser, and provides water source to open cooling water system simultaneously.The effect of mechanical draft tower 13 is to form air stream by mechanical draft tower blower fan, is cooled down by the cooling water return of higher heat.Water suction forebay 15, as the middle transition container of mechanical draft tower Yu water circulating pump, absorbs the water of mechanical draft tower, and is supplied to water circulating pump.Trash is for preventing bigger impurity foreign body from entering water circulating pump, causing the phenomenon of shaft of circulating water pump bite or locking.Recirculated cooling water is driven by water circulating pump, heat exchange tube of condenser bundle is arrived through recirculated cooling water pipeline, cooling turbine discharge also makes condenser be internally formed high vacuum, and provide water source to open cooling water system simultaneously, condenser cooling water backwater and open type cooling water backwater are back to mechanical draft tower each through cooling water return pipe and are cooled, finally converge into water suction forebay, after intercepting bigger impurity foreign body then through trash, arrive water circulating pump entrance.This gas power station water circulating pump has 4,2 high-capacity pumps, 2 low-capacity pumps.According to parameters such as ambient temperature, unit load and recirculated water supply water temperatures, determine to use the operation number of units of big flow or low-capacity pump and water circulating pump.
Fig. 2 is two structural representations dragging a recirculating cooling water system, as in figure 2 it is shown, two drag a recirculating cooling water system to include: condenser, four condenser circulating water inlet road 21-24, four condenser recirculated water water return pipeline 25-28, two drag an opened water automatic water filter 29, circulating water inlet road 30, recirculated water water return pipeline 31.It addition, Fig. 2 is also provided with multiple valve (whereinRepresent electrically operated valve, be arranged on four condenser circulating water inlet road 21-24, four condenser recirculated water water return pipeline 25-28 and two drag in the internal duct of an opened water automatic water filter 29), pressure-measuring-point, temperature point etc., no longer repeat one by one.
Fig. 3 is the structural representation of one-to-one recirculating cooling water system, as it is shown on figure 3, one-to-one recirculating cooling water system includes: condenser, four condenser circulating water inlet road 21-24, four condenser recirculated water water return pipeline 25-28, two drag an opened water automatic water filter 29, circulating water inlet road 30, recirculated water water return pipeline 31.It addition, Fig. 2 is also provided with multiple valve (whereinRepresent electrically operated valve, be arranged on four condenser circulating water inlet road 21-24, four condenser recirculated water water return pipeline 25-28 and two drag in the internal duct of an opened water automatic water filter 29), pressure-measuring-point, temperature point etc., no longer repeat one by one.
In system shown in Fig. 1 to Fig. 3,Represent pressure-measuring-point,Represent temperature point,Represent water level measuring point,Represent electrically operated valve.
As shown in Figure 4, embodiments providing a kind of on off control method, the gas power station recirculating cooling water system shown in application drawing 1, described on off control method includes:
S401: judge the water circulating pump that whether there is operation in four described water circulating pumps；If four described water circulating pumps exist the water circulating pump of operation, carry out S415, if it does not, carry out S402.
S402: judge the Starting mode of the selection of user.
This is a branching step, and this gas power station recirculating cooling water system is divided into two to drag a recirculating cooling water system and two systems of one-to-one recirculating cooling water system, therefore starts in logic in programme-control and have also been made system start-up select button 2 ".Select to start " two drag one " or " one-to-one " recirculating cooling water system by clicking the system start-up select button of the gas power station recirculating cooling water system shown in Fig. 1.
When being embodied as, it is necessary to the startup receiving user selects request, according to starting the Starting mode that selection request judges the selection of user.User can select to start under " two drag one " mode, it is also possible to selects to start under " one-to-one " mode.
If user's Starting mode for starting under " two drag one " mode, perform S403 to S406.
S403: judge whether all valves are all turned off except " two drag one " condenser cooling water access doors and outlet portal (8 doors).Valve except " two drag one " condenser cooling water access doors and outlet portal is all turned off including:
null" one-to-one " condenser recirculated cooling water enters、Outlet portal closes (8)，Recirculated cooling water cools down water automatic water filter entrance door to " one-to-one " open type and bypass door is closed，" one-to-one " open type cooling water backwater to recirculating cooling water system door closes (2)，Recirculated cooling water closes to " one-to-one " unit condenser total door of water supply，Recirculated cooling water cools down water automatic water filter entrance door to " two drag one " open type and bypass door is closed，" two drag one " open type cooling water backwater to recirculating cooling water system door closes (2)，Recirculated cooling water closes to " two drag one " unit condenser total door of water supply，Cooling water return communicating door closes (2)，On all cooling water returns, pyller closes tower bypass door on (12) all cooling water returns and closes (4)，4 water circulating pump outlet valves close (4).
If the valve except " two drag one " condenser cooling water access doors and outlet portal is not all be turned off, need to carry out S404, send valvular instruction outside closedown " two drag one " condenser cooling water access doors and outlet portal, to close all valves except " two drag one " condenser cooling water access doors and outlet portal.This instruction includes:
Close the instruction of " one-to-one " condenser recirculated cooling water import and export door；
Close recirculated cooling water and cool down the instruction of water automatic water filter entrance door and bypass door to " one-to-one " open type；
Close the instruction to recirculating cooling water system door of " one-to-one " open type cooling water backwater；
Close the recirculated cooling water instruction to " one-to-one " unit condenser total door of water supply；
Close recirculated cooling water and cool down the instruction of water automatic water filter entrance door and bypass door to " two drag one " open type；
Close the instruction to recirculating cooling water system door of " two drag one " open type cooling water backwater；
Close the recirculated cooling water instruction to " two drag one " unit condenser total door of water supply；
Close the instruction of cooling water return communicating door；
Close the instruction of pyller on all cooling water returns；
Close the instruction of tower bypass door on all cooling water returns；
Close the instruction of 4 water circulating pump outlet valves.
If the valve except " two drag one " condenser cooling water access doors and outlet portal is all turned off, carry out S405.
S405: judge that described two drag whether a recirculating cooling water system inner valve all has turned on.
Namely, " two drag one " unit recirculated cooling water is opened to the condenser total door of water supply, " two drag one " unit recirculated cooling water is opened to condenser intake gate, backwater door (8), on " two drag one " unit tower basin correspondence cooling water return, pyller (6) is opened, " two drag one " unit tower basin correspondence cooling water return bypass door (2) is opened, and " two drag one " unit condenser hydroecium steam discharge door (8) is opened.
If two drag a recirculating cooling water system inner valve not to be all turned on, entering S406, send and open described two instructions dragging a recirculating cooling water system inner valve, drag a recirculating cooling water system inner valve opening two, this instruction includes:
Open the instruction to the condenser total door of water supply of " two drag one " the unit recirculated cooling water；
Open the instruction to condenser intake gate, backwater door of " two drag one " the unit recirculated cooling water；
Open the instruction of pyller on " two drag one " unit tower basin correspondence cooling water return；
Open the instruction of " two drag one " unit tower basin correspondence cooling water return bypass door；
Open the instruction of " two drag one " unit condenser hydroecium steam discharge door.
If user's Starting mode for starting under " two drag one " mode, perform S407 to S410.
S407: judge whether all valves are all turned off except " one-to-one " condenser cooling water access doors and outlet portal (8 doors).Valve except " one-to-one " condenser cooling water access doors and outlet portal is all turned off including:
null" two drag one " condenser recirculated cooling water enters、Outlet portal closes (8)，Recirculated cooling water cools down water automatic water filter entrance door to " two drag one " open type and bypass door is closed，" two drag one " open type cooling water backwater to recirculating cooling water system door closes (2)，Recirculated cooling water closes to " two drag one " unit condenser total door of water supply，Recirculated cooling water cools down water automatic water filter entrance door to " one-to-one " open type and bypass door is closed，" one-to-one " open type cooling water backwater to recirculating cooling water system door closes (2)，Recirculated cooling water closes to " one-to-one " unit condenser total door of water supply，Cooling water return communicating door closes (2)，On all cooling water returns, pyller closes tower bypass door on (12) all cooling water returns and closes (4)，4 water circulating pump outlet valves close (4).
If the valve except " one-to-one " condenser cooling water access doors and outlet portal is not all be turned off, need to carry out S408, send valvular instruction outside closedown " one-to-one " condenser cooling water access doors and outlet portal, to close all valves except " one-to-one " condenser cooling water access doors and outlet portal.This instruction includes:
Close the instruction of " two drag one " condenser recirculated cooling water import and export door；
Close recirculated cooling water and cool down the instruction of water automatic water filter entrance door and bypass door to " two drag one " open type；
Close the instruction to recirculating cooling water system door of " two drag one " open type cooling water backwater；
Close the recirculated cooling water instruction to " two drag one " unit condenser total door of water supply；
Close recirculated cooling water and cool down the instruction of water automatic water filter entrance door and bypass door to " one-to-one " open type；
Close the instruction to recirculating cooling water system door of " one-to-one " open type cooling water backwater；
Close the recirculated cooling water instruction to " one-to-one " unit condenser total door of water supply；
Close the instruction of cooling water return communicating door；
Close the instruction of pyller on all cooling water returns；
Close the instruction of tower bypass door on all cooling water returns；
Close the instruction of 4 water circulating pump outlet valves.
If the valve except " one-to-one " condenser cooling water access doors and outlet portal is all turned off, carry out S405.
S409: judge whether described one-to-one recirculating cooling water system inner valve all has turned on.
Namely, " one-to-one " unit recirculated cooling water is opened to the condenser total door of water supply, " one-to-one " unit recirculated cooling water is opened to condenser intake gate, backwater door (8), on " one-to-one " unit tower basin correspondence cooling water return, pyller (6) is opened, " one-to-one " unit tower basin correspondence cooling water return bypass door (2) is opened, and " one-to-one " unit condenser hydroecium steam discharge door (8) is opened.
If one-to-one recirculating cooling water system inner valve is not all turned on, entering S410, send the instruction opening described one-to-one recirculating cooling water system inner valve, to open one-to-one recirculating cooling water system inner valve, this instruction includes:
Open the instruction to the condenser total door of water supply of " one-to-one " the unit recirculated cooling water；
Open the instruction to condenser intake gate, backwater door of " one-to-one " the unit recirculated cooling water；
Open the instruction of pyller on " one-to-one " unit tower basin correspondence cooling water return；
Open the instruction of " one-to-one " unit tower basin correspondence cooling water return bypass door；
Open the instruction of " one-to-one " unit condenser hydroecium steam discharge door.
If described two drag a recirculating cooling water system inner valve all to have turned on or described one-to-one recirculating cooling water system inner valve all has turned under " one-to-one " mode under " two drag one " mode, carry out S411.
S411: judge preliminary election water circulating pump outlet hydraulic butterfly valve whether extremely predetermined aperture.In one embodiment, described predetermined aperture is the aperture of 15%.
If preliminary election water circulating pump outlet hydraulic butterfly valve is not to predetermined aperture, carry out S412, send out the instruction of preliminary election water circulating pump outlet hydraulic butterfly valve, to open preliminary election water circulating pump outlet hydraulic butterfly valve.
If preliminary election water circulating pump outlet hydraulic butterfly valve is to predetermined aperture, carry out S413.
S413: judge whether preliminary election water circulating pump outlet hydraulic butterfly valve is not less than described predetermined aperture, and time delay 2 seconds.
If preliminary election water circulating pump outlet hydraulic butterfly valve is less than described predetermined aperture, or preliminary election water circulating pump outlet hydraulic butterfly valve was not less than the time delay of described predetermined aperture less than 2 seconds, then carry out S414, stop the instruction of preliminary election water circulating pump outlet hydraulic butterfly valve in sending.
If preliminary election water circulating pump outlet hydraulic butterfly valve is not less than described predetermined aperture, and time delay 2 seconds, carry out S415.
S415: judge whether preliminary election water circulating pump runs.
If preliminary election water circulating pump does not run, carry out S416, send the instruction starting preliminary election water circulating pump, to start preliminary election water circulating pump.
If preliminary election water circulating pump runs, carry out S417.
S417 judges that described two drag a recirculating cooling water system or described one-to-one recirculating cooling water system whether water filling completes.
If two drag a recirculating cooling water system or one-to-one recirculating cooling water system water filling to complete, carry out S418.
S418: judge water circulating pump outlet hydraulic butterfly valve whether standard-sized sheet, and whether described water circulating pump outlet main-piping pressure is more than setting value, and described two drag whether a recirculating cooling water system or described one-to-one recirculating cooling water system condenser water box emptying door all close.In one embodiment, described setting value is 0.2MPa.
If can not fully meet: water circulating pump outlet hydraulic butterfly valve standard-sized sheet, and described water circulating pump outlet main-piping pressure is more than setting value, and described two drag a recirculating cooling water system or described one-to-one recirculating cooling water system condenser water box emptying Men Junyi close, carry out S419, send open cycle exit of pump hydraulic butterfly valve, close two instructions dragging a recirculating cooling water system or one-to-one recirculating cooling water system condenser water box emptying door, with open cycle exit of pump hydraulic butterfly valve, close two and drag a recirculating cooling water system and one-to-one recirculating cooling water system condenser water box emptying door.
If water circulating pump outlet hydraulic butterfly valve standard-sized sheet, and described water circulating pump outlet main-piping pressure is more than setting value, and described two drag a recirculating cooling water system or described one-to-one recirculating cooling water system condenser water box emptying Men Junyi to close, and carry out S420.
S420: judge whether " big the United Nations General Assembly " or " little " puts into, or whether four water circulating pumps interlocking put into, or whether all water circulating pumps all run, and water circulating pump subgroup controls whether to put into.
If can not meet: " big the United Nations General Assembly " or " little " puts into, or four water circulating pump interlockings put into, or all water circulating pumps all run, and water circulating pump subgroup controls to put into, then enter S421, send as given an order: throw water circulating pump subgroup and control；And throw " big the United Nations General Assembly " or " little ".Herein, if preliminary election water circulating pump is big pump, then throw " big the United Nations General Assembly ", if preliminary election water circulating pump is little pump, then throw " little ".
It should be noted that herein, in Fig. 1, the power of water circulating pump 141 and water circulating pump 142 is more than water circulating pump 143 and water circulating pump 144 power, and " big the United Nations General Assembly " states powerful water circulating pump and couples powerful water circulating pump, i.e. water circulating pump 141 water circulating pump 142." little " is stated low power water circulating pump and is coupled low power water circulating pump, i.e. water circulating pump 143 water circulating pump 144.
By the description of Fig. 4 it can be seen that each step of the method shown in Fig. 4, first judging whether feedback receives, if received, continuing next step；If do not received, then sending instruction, waiting to be feedback receiving.
In one embodiment, as it is shown in figure 5, the on off control method of the present invention also includes: stopping step, this stopping step including:
S501: judge that water circulating pump subgroup controls whether to have dropped out and whether time delay 10 seconds.
If water circulating pump subgroup controls not exit, or have dropped out still time delay less than 10 seconds, enter S502, send water circulating pump and run the instruction that number of units subtracts 1 and exits the control of water circulating pump subgroup.
If water circulating pump subgroup controls whether to have dropped out and whether time delay 10 seconds, carry out S503.
S503: judge that whether preliminary election water circulating pump outlet hydraulic butterfly valve aperture is less than predetermined number of degrees with respect.In one embodiment, described predetermined number of degrees with respect is 30 degree.
If preliminary election water circulating pump outlet hydraulic butterfly valve aperture is not less than predetermined number of degrees with respect, enter S504, send the instruction closing preliminary election water circulating pump outlet hydraulic butterfly valve.
If preliminary election water circulating pump outlet hydraulic butterfly valve aperture is less than predetermined number of degrees with respect, carry out S505.
S505: judge whether preliminary election water circulating pump stops, and preliminary election water circulating pump outlet hydraulic butterfly valve whether close.
If preliminary election water circulating pump does not stop, and preliminary election water circulating pump outlet hydraulic butterfly valve does not close, or preliminary election water circulating pump does not stop, preliminary election water circulating pump outlet hydraulic butterfly valve closes, or preliminary election water circulating pump stops, and preliminary election water circulating pump outlet hydraulic butterfly valve does not close, and enters S506, send stopping preliminary election water circulating pump, and close the instruction of preliminary election water circulating pump outlet hydraulic butterfly valve.
If preliminary election water circulating pump stops, and preliminary election water circulating pump outlet hydraulic butterfly valve closes, carries out S507.
S507: judge whether all water circulating pumps all stop.
If there being arbitrary water circulating pump to run, then terminate the stopping step of the present invention.
If all water circulating pumps all stop, entering S508.
S508: judge that water circulating pump is program control and water circulating pump subgroup controls whether to have dropped out.
If water circulating pump is program control and water circulating pump subgroup controls not exit, carries out S509, send and exit the instruction that water circulating pump is program control and water circulating pump subgroup controls.If water circulating pump is program control and water circulating pump subgroup controls to exit, terminate the stopping step of the present invention.
As shown in Figure 6, the on off control method of the present invention also includes: described two drag a recirculating cooling water system to the step of described one-to-one recirculating cooling water system water filling, specifically include:
S601: judge that " two drag one " that whether user press in water filling button is to " one-to-one " water filling button.
S602: if user presses " two drag one " in water filling button to " one-to-one " water filling button, it is judged that whether one-to-one recirculating cooling water system condenser intake gate is opened, and whether one-to-one recirculating cooling water system condenser water box steam discharge door is opened.
If it does not, carry out S603, send and open one-to-one recirculating cooling water system condenser intake gate, open one-to-one recirculating cooling water system condenser backwater door 20 seconds and open the instruction of one-to-one recirculating cooling water system condenser water box steam discharge door.
S604: if one-to-one recirculating cooling water system condenser intake gate is opened, and one-to-one recirculating cooling water system condenser water box steam discharge door opens, it is judged that described two drag a recirculating cooling water system to whether described one-to-one recirculating cooling water system water filling completes.
S605: if two drag a recirculating cooling water system to complete to described one-to-one recirculating cooling water system water filling, it is judged that whether one-to-one recirculating cooling water system condenser water box steam discharge door closes, and whether one-to-one recirculating cooling water system condenser backwater door is opened.
If it does not, carry out S606, send and close one-to-one recirculating cooling water system condenser water box steam discharge door and open the instruction of one-to-one recirculating cooling water system condenser backwater door.
As it is shown in fig. 7, the on off control method of the present invention also includes: described one-to-one recirculating cooling water system, to described two steps dragging a recirculating cooling water system water filling, specifically includes:
S701: judge " one-to-one " to " two drag one " the water filling button whether user presses in water filling button.
S702: if user presses " one-to-one " to " two drag one " the water filling button in water filling button, it is judged that whether one-to-one recirculating cooling water system condenser intake gate is opened, and whether one-to-one recirculating cooling water system condenser water box steam discharge door is opened.
If it does not, carry out S703, send unlatching two and drag a recirculating cooling water system condenser intake gate, unlatching two drag a recirculating cooling water system condenser backwater door 20 seconds and open two instructions dragging a recirculating cooling water system condenser water box steam discharge door.
S704: if two drag a recirculating cooling water system condenser intake gate to open, and two drag a recirculating cooling water system condenser water box steam discharge door to open, it is judged that to described two, described one-to-one recirculating cooling water system drags whether a recirculating cooling water system water filling completes.
S705: if one-to-one recirculating cooling water system drags a recirculating cooling water system water filling to complete to described two, it is judged that two drag whether a recirculating cooling water system condenser water box steam discharge door closes, and two drag whether a recirculating cooling water system condenser backwater door is opened.
If it does not, carry out S706, send closedown two and drag a recirculating cooling water system condenser water box steam discharge door and open two instructions dragging a recirculating cooling water system condenser backwater door.
The on off control method (programme-control startup logic) of the gas power station recirculating cooling water system of the present invention comprises the condition allowed before starting: 1. the public water suction the water level of the frontal pool of recirculated cooling water is more than setting value (-1.5m)；2. preliminary election circulation-water pump electric machine cooling water inlet flow is not low.After meeting these conditions, the step of on off control method of the present invention can carry out.
This gas power station recirculating cooling water system of the present invention is provided with " two drag one " and " one-to-one " system water filling completes ACK button.When starting step sequence and carrying out to S417, after waiting that power plant operations staff judges that " two drag one " system or " one-to-one " system water filling complete, click corresponding water filling and complete ACK button, start step sequence and proceed.
The gas power station recirculating cooling water system of the present invention is provided with and opens pump operation quantity select button.By clicking this button, select the method for operation of water circulating pump, including " single pump operation ", " double pump operation ", " three pump operations " and " four pump operations " these four mode.This selection is embodied in S415 first, and this step is start the preliminary election pump of respective numbers, at the preliminary election delivery side of pump hydraulic butterfly valve of S418 standard-sized sheet respective numbers.
The gas power station recirculating cooling water system of the present invention is provided with subgroup control knob.Subgroup control knob clicks preliminary election water circulating pump, including No. 1 pump of preliminary election, No. 2 pumps of preliminary election and No. 3 pumps of preliminary election, No. 4 pumps of preliminary election.This selection is embodied in S411 first, and the instruction of this step is for opening preliminary election pump discharge hydraulic butterfly valve, and opens preliminary election delivery side of pump Electrically operated gate at S415.Realize it addition, the programmed logic controlling to call pump each through subgroup for function thrown by the interlocking between pump operation quantity and four pump programmed logics.
The on off control method of the gas power station recirculating cooling water system of the present invention proceeds to a certain step, and when not receiving due feedback signal, programed logic can rest on this step, waits manual operation.Power plant operations staff can find the currently running unreceived feedback signal of step sequence, artificially judges whether unreceived feedback signal affects continuing executing with of programed logic.If this feedback signal does not affect present procedure controls proceeding of logic, operations staff can operate leapfrog action and continue the execution of programed logic；If this feedback signal affects present procedure controls proceeding of logic, then operations staff according to each found unsatisfied feedback signal, can going investigation problem, until receiving this feedback signal, continuing executing with programed logic targetedly.
The programed logic of the gas power station recirculating cooling water system of the present invention starts step sequence can automatically engage water circulating pump interlocking, and this is embodied in S420.After interlocking puts into, when having water circulating pump operation and recirculating cooling water system pressure lower than certain definite value；Or when having arbitrary water circulating pump to trip, all can another water circulating pump of interlocked startup, thus ensureing that recirculating cooling water system main-piping pressure is normal.It addition, the interlock method automatically engaged in the S420 of the on off control method of the present invention is " big the United Nations General Assembly " or " little ", " four interlockings " manually puts into after being judged current operating situation by operations staff.
The interlocking of the gas power station recirculating cooling water system of the present invention is thrown standby mode and is divided into " four interlockings ", " big the United Nations General Assembly " and " little " three kinds of modes." four interlockings ", if putting into, refers between four pumps according to interlocked startup under the sequential loop mode of #1, #2, #3, #4 pump；" big the United Nations General Assembly ", if putting into, refers to the interlocked startup between the big pump of #3 and #4；" little ", if putting into, refers to the interlocked startup between the little pump of #1 and #2.It is interlocking between " four interlockings " and " big the United Nations General Assembly ", " little ", it is meant that the input of a kind of mode can excise another mode.Two big pumps run simultaneously, automatically excision " big the United Nations General Assembly " interlock method；Two little pumps run simultaneously, automatically excision " little " interlock method；When four pumps run simultaneously, excision " four interlockings " mode automatically.
The gas power station recirculating cooling water system of the present invention is provided with " two drag one " to " one-to-one " system water filling programmed button and " one-to-one " to " two drag one " system water filling programmed button.When only side operation in " two drag " or " one-to-one " recirculating cooling water system, when opposite side recirculating cooling water system prepares to start, complete ACK button in conjunction with artificial recharge, it is achieved that run the function of the lateral inoperative side program control water filling of recirculating cooling water system.
In the on off control method of gas power station recirculating cooling water system of the present invention, first S501 exits subgroup control, and currently running water circulating pump number of units is subtracted one.Exit subgroup and control to make the interlock temporary extinction of water circulating pump, it is to avoid stop preliminary election pump and cause connection to open phenomenon.Currently running pump number of units is subtracted one so that run pump number of units and select with pump operation quantity number of units to keep consistent, it is to avoid put into next time when subgroup controls and cause unnecessary termination of pumping action.
The on off control method of the present invention can realize four big functions: the first, under recirculating cooling water system full cut-off state, it is achieved the automatic startup of recirculating cooling water system；And under operation, it is achieved being automatically stopped of recirculating cooling water system.The second, when recirculating cooling water system part starts, it is achieved the automatic startup of recirculating cooling water system, and original running status is not disturbed.3rd, when programed logic (on off control method) runs to a certain step, condition is unsatisfactory for, if artificially judging that this condition can ignore that, it is possible to is performed manually by leapfrog action and continues the operation of programed logic, until step sequence is complete.4th, when only side operation in " two drag " or " one-to-one " recirculating cooling water system, when opposite side recirculating cooling water system prepares to start, ACK button is completed, it is achieved that run the function of the lateral inoperative side program control water filling of recirculating cooling water system in conjunction with artificial recharge.5th, by subgroup control knob, achieve the interlocking between four program control startup logics of water circulating pump and throw standby function, and the feature of high-capacity pump, low-capacity pump is divided in conjunction with water circulating pump, standby function thrown by the interlocking adding " big the United Nations General Assembly ", " little " for its method of operation.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, complete software implementation or the embodiment in conjunction with software and hardware aspect.And, the present invention can adopt the form at one or more upper computer programs implemented of computer-usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.) wherein including computer usable program code.
The present invention is that flow chart and/or block diagram with reference to method according to embodiments of the present invention, equipment (system) and computer program describe.It should be understood that can by the combination of the flow process in each flow process in computer program instructions flowchart and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can be provided to produce a machine to the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device so that the instruction performed by the processor of computer or other programmable data processing device is produced for realizing the device of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide in the computer-readable memory that computer or other programmable data processing device work in a specific way, the instruction making to be stored in this computer-readable memory produces to include the manufacture of command device, and this command device realizes the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices provides for realizing the step of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
Applying specific embodiment in the present invention principles of the invention and embodiment are set forth, the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, all will change in specific embodiments and applications, in sum, this specification content should not be construed as limitation of the present invention.
Claims (10)
1. a gas power station recirculating cooling water system, it is characterized in that, described gas power station recirculating cooling water system includes: two drag a recirculating cooling water system, one-to-one recirculating cooling water system, recirculating cooling water system backwater mother pipe, recirculating cooling water system water inlet mother's pipe, 12 mechanical draft towers, four water circulating pumps, the public water suction forebay of recirculated water and two recirculated water backwater communicating doors；
The female pipe of described recirculating cooling water system water inlet connects one-to-one recirculating cooling water system and two respectively and drags the water inlet of a recirculating cooling water system, and described recirculating cooling water system backwater mother's pipe connects one-to-one recirculating cooling water system and two respectively and drags the outlet of a recirculating cooling water system；Four described water circulating pumps are connected on the pipeline between described recirculating cooling water system water inlet mother's pipe and the public water suction forebay of described recirculated water；6 described mechanical draft towers are arranged on the side of the public water suction forebay of described recirculated water, other 6 described mechanical draft towers are arranged on the opposite side of the public water suction forebay of described recirculated water, and each mechanical draft tower is both connected between described recirculated water public water suction forebay and described recirculating cooling water system backwater mother's pipe.
2. gas power station recirculating cooling water system according to claim 1, it is characterized in that, described gas power station recirculating cooling water system also includes: system start-up select button, water circulating pump runs quantity select button, subgroup control knob, water filling completes ACK button, two drag a recirculating cooling water system to one-to-one recirculating cooling water system water filling button, one-to-one recirculating cooling water system drags a recirculating cooling water system water filling button to two, and water circulating pump throws standby button and water circulating pump programed logic operation button #1, #2, #3, #4.
3. gas power station recirculating cooling water system according to claim 1, it is characterized in that, described gas power station recirculating cooling water system also includes: four low alarm switches of circulation-water pump electric machine cooling water flow, it is respectively connecting to the first water circulating pump, second water circulating pump, one of them of the 3rd water circulating pump and the 4th water circulating pump.
4. an on off control method, is applied to the gas power station recirculating cooling water system described in claim 1, it is characterised in that described on off control method includes:
Judge the water circulating pump that whether there is operation in four described water circulating pumps；
If it does not, the startup receiving user selects request, start, according to described, the Starting mode that selection request judges the selection of user；
If user's Starting mode for starting under " two drag one " mode, it is judged that except " two drag one " condenser cooling water access doors and outlet portal, whether all valves are all turned off；If it does not, valvular instruction outside sending closedown " two drag one " condenser cooling water access doors and outlet portal；
If it is, judge that described two drag whether a recirculating cooling water system inner valve all has turned on；Described two instructions dragging a recirculating cooling water system inner valve are opened if it does not, send；
If user's Starting mode is start under " one-to-one " mode, it is judged that except " one-to-one " condenser cooling water access doors and outlet portal, whether all valves are all turned off；If it does not, valvular instruction outside sending closedown " one-to-one " condenser cooling water access doors and outlet portal；
If it is, judge whether described one-to-one recirculating cooling water system inner valve all has turned on；If it does not, send the instruction opening described one-to-one recirculating cooling water system inner valve；
If described two drag a recirculating cooling water system inner valve all to have turned on or described one-to-one recirculating cooling water system inner valve all has turned under " one-to-one " mode under " two drag one " mode, it is judged that whether preliminary election water circulating pump outlet hydraulic butterfly valve is to predetermined aperture；If it does not, send out the instruction of preliminary election water circulating pump outlet hydraulic butterfly valve；
If it is, judge whether preliminary election water circulating pump outlet hydraulic butterfly valve is not less than described predetermined aperture, and time delay 2 seconds；If it does not, stop the instruction of preliminary election water circulating pump outlet hydraulic butterfly valve in sending；
If it is, judge whether preliminary election water circulating pump runs；If it does not, send the instruction starting preliminary election water circulating pump；
If it is, judge that described two drag a recirculating cooling water system or described one-to-one recirculating cooling water system whether water filling completes；
If it is, judge water circulating pump outlet hydraulic butterfly valve whether standard-sized sheet, and whether described water circulating pump outlet main-piping pressure is more than setting value, and described two drag whether a recirculating cooling water system or described one-to-one recirculating cooling water system condenser water box emptying door all close；If it does not, send open cycle exit of pump hydraulic butterfly valve, close two instructions dragging a recirculating cooling water system or one-to-one recirculating cooling water system condenser water box emptying door；
If it is, judge whether " big the United Nations General Assembly " or " little " puts into, or whether four water circulating pump interlockings put into, or whether all water circulating pumps all run, and water circulating pump subgroup controls whether to put into；If it does not, send as given an order: throw water circulating pump subgroup and control；And throw " big the United Nations General Assembly " or " little ".
5. on off control method according to claim 4, it is characterised in that described on off control method also includes:
Judge that water circulating pump subgroup controls whether to have dropped out and whether time delay 10 seconds；If it does not, send water circulating pump to run the instruction that number of units subtracts 1 and exits the control of water circulating pump subgroup；
If it is, judge that whether preliminary election water circulating pump outlet hydraulic butterfly valve aperture is less than predetermined number of degrees with respect；If it does not, send the instruction closing preliminary election water circulating pump outlet hydraulic butterfly valve；
If it is, judge whether preliminary election water circulating pump stops, and whether preliminary election water circulating pump outlet hydraulic butterfly valve closes；If it does not, send stopping preliminary election water circulating pump, and close the instruction of preliminary election water circulating pump outlet hydraulic butterfly valve；
If it is, judge whether all water circulating pumps all stop；
If all water circulating pumps all stop, it is judged that water circulating pump is program control and water circulating pump subgroup controls whether to have dropped out；The instruction that water circulating pump is program control and water circulating pump subgroup controls is exited if it does not, send.
6. on off control method according to claim 4, it is characterised in that described on off control method also includes: described two drag a recirculating cooling water system to the step of described one-to-one recirculating cooling water system water filling, including:
Judge that " two drag one " that whether user press in water filling button is to " one-to-one " water filling button；
If it is, judge whether one-to-one recirculating cooling water system condenser intake gate is opened, and whether one-to-one recirculating cooling water system condenser water box steam discharge door is opened；Open one-to-one recirculating cooling water system condenser intake gate, unlatching one-to-one recirculating cooling water system condenser backwater door 20 seconds if it does not, send and open the instruction of one-to-one recirculating cooling water system condenser water box steam discharge door；
If it is, judge that described two drag a recirculating cooling water system to whether described one-to-one recirculating cooling water system water filling completes；
If it is, judge whether one-to-one recirculating cooling water system condenser water box steam discharge door closes, and whether one-to-one recirculating cooling water system condenser backwater door is opened；Close one-to-one recirculating cooling water system condenser water box steam discharge door if it does not, send and open the instruction of one-to-one recirculating cooling water system condenser backwater door.
7. on off control method according to claim 4, it is characterised in that described on off control method also includes: described one-to-one recirculating cooling water system to described two steps dragging a recirculating cooling water system water filling, including:
Judge " one-to-one " to " two drag one " the water filling button whether user presses in water filling button；
If it is, judge that two drag whether a recirculating cooling water system condenser intake gate is opened, and two drag whether a recirculating cooling water system condenser water box steam discharge door is opened；A recirculating cooling water system condenser intake gate, unlatching two is dragged to drag a recirculating cooling water system condenser backwater door 20 seconds and open two instructions dragging a recirculating cooling water system condenser water box steam discharge door if it does not, send unlatching two；
If it is, judge to described two, described one-to-one recirculating cooling water system drags whether a recirculating cooling water system water filling completes；
If it is, judge that two drag whether a recirculating cooling water system condenser water box steam discharge door closes, and two drag whether a recirculating cooling water system condenser backwater door is opened；Drag a recirculating cooling water system condenser water box steam discharge door if it does not, send closedown two and open two instructions dragging a recirculating cooling water system condenser backwater door.
8. on off control method according to claim 4, it is characterised in that described setting value is 0.2MPa.
9. on off control method according to claim 5, it is characterised in that described predetermined number of degrees with respect is 30 degree.
10. on off control method according to claim 4, it is characterised in that described predetermined aperture is the aperture of 15%.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253581A (en) * | 2016-09-28 | 2016-12-21 | 华北电力科学研究院有限责任公司 | Thermal power plant's Generator Stator Cooling water system and on off control method thereof |
| CN106247739A (en) * | 2016-09-28 | 2016-12-21 | 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 on off control method thereof |
| CN106401932A (en) * | 2016-11-03 | 2017-02-15 | 中冶华天工程技术有限公司 | Sewage treatment lift pump running control method |
| CN113137826A (en) * | 2021-04-20 | 2021-07-20 | 华北电力科学研究院有限责任公司 | Mechanical ventilation indirect air cooling system control method and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS597885A (en) * | 1982-07-05 | 1984-01-17 | Hitachi Ltd | Cooling water system |
| EP2051031A1 (en) * | 2007-10-19 | 2009-04-22 | Envi Con & Plant Engineering GmbH | Cooling water system for power plants and industrial assemblies |
| 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 |
| CN203549982U (en) * | 2013-11-21 | 2014-04-16 | 北京华景天润科技有限公司 | Circulating water system of thermal power plant |
| 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 |
| CN204421459U (en) * | 2014-12-31 | 2015-06-24 | 国家电网公司 | Gas power station recirculating cooling water system |
-
2014
- 2014-12-31 CN CN201410854654.0A patent/CN105806012B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS597885A (en) * | 1982-07-05 | 1984-01-17 | Hitachi Ltd | Cooling water system |
| EP2051031A1 (en) * | 2007-10-19 | 2009-04-22 | Envi Con & Plant Engineering GmbH | Cooling water system for power plants and industrial assemblies |
| CN203549982U (en) * | 2013-11-21 | 2014-04-16 | 北京华景天润科技有限公司 | Circulating water system of thermal power plant |
| 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 |
| CN204421459U (en) * | 2014-12-31 | 2015-06-24 | 国家电网公司 | Gas power station recirculating cooling water system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253581A (en) * | 2016-09-28 | 2016-12-21 | 华北电力科学研究院有限责任公司 | Thermal power plant's Generator Stator Cooling water system and on off control method thereof |
| CN106247739A (en) * | 2016-09-28 | 2016-12-21 | 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 on off control method thereof |
| CN106253581B (en) * | 2016-09-28 | 2018-09-07 | 华北电力科学研究院有限责任公司 | Thermal power plant's Generator Stator Cooling water system and its start-up and shut-down control method |
| 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 |
| CN106401932A (en) * | 2016-11-03 | 2017-02-15 | 中冶华天工程技术有限公司 | Sewage treatment lift pump running control method |
| CN113137826A (en) * | 2021-04-20 | 2021-07-20 | 华北电力科学研究院有限责任公司 | Mechanical ventilation indirect air cooling system control method and system |
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