CN110206602A - A kind of heat and power system and its control method based on nuclear power station - Google Patents
A kind of heat and power system and its control method based on nuclear power station Download PDFInfo
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- CN110206602A CN110206602A CN201910433522.3A CN201910433522A CN110206602A CN 110206602 A CN110206602 A CN 110206602A CN 201910433522 A CN201910433522 A CN 201910433522A CN 110206602 A CN110206602 A CN 110206602A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/16—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour
- F22B1/162—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour in combination with a nuclear installation
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- High Energy & Nuclear Physics (AREA)
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Abstract
This application involves a kind of heat and power system and its control method based on nuclear power station.The system comprises: steam generator and respectively the fever access being connect with the steam generator and the access that generates electricity；The steam generator, the first solution and nuclear island liquid for that will set solute carry out heat exchange processing, obtain the second solution and steam of the setting solute；Wherein, the concentration of second solution is higher than the concentration of first solution；The fever access, the second solution for exporting the steam generator are transmitted to heat release position, are diluted heat release processing to second solution in the heat release position, and the first solution that processing obtains is transmitted back to the steam generator；The power generation access for receiving the steam of the steam generator output, and generates electricity under the action of the steam.Through the embodiment of the present invention, the efficient long-distance sand transport that nuclear power station heat may be implemented, solves the problems, such as heat transfer, and form cogeneration of heat and power, effectively utilizes nuclear energy.
Description
Technical field
This application involves technical field of energy utilization, more particularly to a kind of heat and power system based on nuclear power station and its control
Method.
Background technique
Heating boiler of the traditional energy (coal, petroleum, natural gas) as fuel, can not only discharge a large amount of pernicious gas
Environment is polluted, a large amount of greenhouse gases can be also discharged and cause warming for global climate.Therefore, the attention with people to environmental protection, benefit
It is that people's heating is increasingly becoming a kind of trend with clean energy resource.
Nuclear energy is one of clean energy resource, it can generate huge heat and not discharge of noxious gases and greenhouse gases.But
The considerations of for nuclear energy safety, nuclear power station are typically established at the more inclined seashore in geographical location.Therefore, because nuclear power station distance
Farther out, heat transfer becomes problem to user, and the huge heat contained is difficult to be utilized.
Summary of the invention
Based on this, it is necessary in view of the above technical problems, provide one kind and be able to solve heat transfer problem, realize thermoelectricity connection
The heat and power system and its control method based on nuclear power station produced.
On the one hand, the embodiment of the invention provides a kind of heat and power system based on nuclear power station, which includes: steam generation
Device and the fever access being connect respectively with steam generator and power generation access；
Steam generator, the first solution and nuclear island liquid for that will set solute carry out heat exchange processing, obtain setting molten
The second solution and steam of matter；Wherein, the concentration of the second solution is higher than the concentration of the first solution；
Generate heat access, and the second solution for exporting steam generator is transmitted to heat release position, in heat release position to the
Two solution are diluted heat release processing, and the first solution that processing obtains is transmitted back to steam generator；
Generate electricity access, for receiving the steam of steam generator output, and generates electricity under the action of steam.
Above-mentioned fever access includes heat exchanger, temperature-decreased pressure reducer, radiator and recycling machine in one of the embodiments,
Group；Heat exchanger is connect with steam generator, temperature-decreased pressure reducer and recycling unit respectively；Radiator setting is in heat release position, respectively
It is connect with temperature-decreased pressure reducer and recycling unit；
Heat exchanger, the first solution that the second solution and recycling unit for exporting to steam generator return exchange heat
Processing, and will heat exchange treated the second solution is transmitted to temperature-decreased pressure reducer, and will heat exchange treated the first solution transmission
To steam generator；
Temperature-decreased pressure reducer, the second solution for the output of heat exchanging device carry out pressure and temperature reducing processing, and will be after pressure and temperature reducing
The second solution be transmitted to radiator；
Radiator obtains first after processing for being diluted heat release processing to the second solution that temperature-decreased pressure reducer exports
Solution；
Unit is recycled, the first solution for exporting radiator is transmitted back to heat exchanger.
Above-mentioned recycling unit includes sequentially connected clarifier, condenser and increasing temperature and pressure in one of the embodiments,
Unit；Clarifier connects radiator, and increasing temperature and pressure unit connects heat exchanger；
Clarifier, the first solution for exporting to radiator carry out purified treatment；
Condenser, the first solution for exporting clarifier are transmitted to increasing temperature and pressure unit, and cold in transmission process
But steam exhaust；
Increasing temperature and pressure unit, the first solution for exporting to condenser carry out increasing temperature and pressure processing, and by treated
First solution is transmitted back to heat exchanger.
Above-mentioned recycling unit further includes transmission pump in one of the embodiments, and transmission pump is separately connected clarifier and coagulates
Vapour device；
Transmission pump, the first solution for exporting clarifier are transmitted to condenser.
Above-mentioned increasing temperature and pressure unit includes sequentially connected low pressure feed water pump, low-pressure heating in one of the embodiments,
Device, high pressure water pump and high-pressure heater；Low pressure feed water pump connection condenser, high-pressure heater connect heat exchanger；
Low pressure feed water pump, the first solution for exporting condenser are transmitted to low-pressure heater；
Low-pressure heater, for carrying out primary heating to the first solution of low pressure feed water pump output, and will be after primary heating
The first solution be transmitted to high pressure water pump；
High pressure water pump, the first solution for exporting low-pressure heater are transmitted to high-pressure heater；
High-pressure heater, the first solution for exporting to high pressure water pump carry out reheating, and will be after reheating
The first solution export to heat exchanger.
Above-mentioned fever access further includes booster in one of the embodiments, and booster is separately connected radiator and returns
Receive unit；
Booster for carrying out boosting processing to the first solution that radiator exports, and the first solution after boosting is passed
Transport to recycling unit.
Above-mentioned power generation access includes sequentially connected steam turbine and generator in one of the embodiments, and steam turbine connects
Connect steam generator；
Steam turbine generates mechanical energy for receiving the steam of steam generator output, and in steam acting；
Generator, for converting mechanical energy into electric energy.
Above-mentioned steam turbine includes steam turbine high-pressure cylinder, steam-water separator and steam turbine low-pressure in one of the embodiments,
Cylinder；
Steam turbine high-pressure cylinder generates mechanical energy in steam acting, by one for receiving the steam of steam generator output
Some vapor is exported to steam-water separator, and another part steam is exported to fever access；
Steam-water separator, the steam for exporting to steam turbine high-pressure cylinder carry out steam-water separation, and the steam that will be isolated
It is transmitted to turbine low pressure cylinder；
Turbine low pressure cylinder generates mechanical energy in steam acting, by machine for receiving the steam of steam-water separator output
Tool can be transferred to generator, and steam is exported to fever access.
The above-mentioned solute that sets is alkali metal hydroxide in one of the embodiments,.
On the other hand, the embodiment of the invention provides a kind of control method of heat and power system based on nuclear power station, it is applied to
Such as above-mentioned heat and power system, which includes the steam generator, fever access and power generation access of nuclear power station；This method packet
It includes:
The first solution for setting solute and nuclear island liquid are carried out heat exchange processing by control steam generator, obtain setting solute
The second solution and steam；Wherein, the concentration of the second solution is higher than the concentration of the first solution；
Control fever access the second solution for exporting steam generator is transmitted to heat release position, and in heat release position to the
Two solution are diluted heat release processing, and the first solution that processing obtains is transmitted back to steam generator；
Control power generation access receives the steam of steam generator output, and generates electricity under the action of steam.
Above-mentioned heat and power system and its control method based on nuclear power station, the system include steam generator and respectively with
The fever access and power generation access of steam generator connection；Wherein, steam generator will set the first solution and nuclear island of solute
Liquid carries out heat exchange processing, obtains the second solution and steam of setting solute；Wherein the concentration of the second solution is higher than the first solution
Concentration；The second solution that fever access exports steam generator is transmitted to heat release position, and molten to second in heat release position
Liquid is diluted heat release processing, and the first solution obtained after processing is transmitted back to steam generator；The access that generates electricity receives steam hair
The steam that raw device generates, and generate electricity under the action of steam.Through the embodiment of the present invention, the steam generator of nuclear power station is by first
Solution concentration, obtains the second solution and steam, on the one hand, the second solution can be pipelined to the heat release position where user
It sets, then releases heat for heating of house.Due to avoiding heat waste caused by long pipeline using the second solution as heat-storage medium
It loses, realizes the efficient long-distance sand transport of nuclear power station heat, solve the problems, such as heat transfer.On the other hand, steam generator produces
Raw steam can form cogeneration of heat and power, to efficiently use nuclear energy in power generation access power generation.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the heat and power system based on nuclear power station in one embodiment；
Fig. 2 is a kind of structural schematic diagram of the heat and power system based on nuclear power station in another embodiment；
Fig. 3 is a kind of flow diagram of the control method of the heat and power system based on nuclear power station in one embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
Shown in referring to Fig.1, the embodiment of the invention provides a kind of heat and power systems based on nuclear power station.The system includes: to steam
Vapour generator 10 and the fever access 20 being connect respectively with steam generator and power generation access 30；Steam generator 10, being used for will
The first solution and nuclear island liquid for setting solute carry out heat exchange processing, obtain the second solution and steam of setting solute；Wherein,
The concentration of two solution is higher than the concentration of the first solution；Generate heat access 20, and the second solution for exporting steam generator 10 passes
Heat release position is transported to, heat release processing is diluted to the second solution in heat release position, and the first solution that processing is obtained transmits
Return steam generator 10；Generate electricity access 30, for receiving the steam of the output of steam generator 10, and sends out under the action of steam
Electricity.
In the present embodiment, nuclear island liquid carries huge heat when flowing out from reactor, and nuclear island liquid flows into steam generator
After in 10, the first solution and nuclear island liquid for setting solute carry out heat exchange processing, obtain the second solution and steam.Wherein,
The concentration of two solution is higher than the concentration of the first solution.
Then, the output of steam generator 10 carries the second solution and steam of heat, leads to wherein the second solution enters fever
Road 20 is transferred to heat release position, is diluted heat release processing to the second solution in heat release position, the second solution releases heat
For heating.Second solution obtains the first solution after being diluted, then, the first solution is communicated back to steam generator 10 and recycles benefit
With.For example, the second solution is transmitted to the heat releases such as residential building, office building position by fever access 20, user adds into the second solution
Water, the second solution release heat in dilution and obtain the first solution.Then, fever access 20 is molten by first after dilution
Liquid is transmitted back to steam generator 10.The embodiment of the present invention does not limit the amount of water in the second solution in detail, can be according to reality
Border situation is configured.Heat and power system using the second solution as heat-storage medium, can to avoid heat loss caused by long pipeline, from
And realize the efficient long-distance sand transport of nuclear power station heat, solve the problems, such as heat transfer.
The steam that steam generator 10 exports enters power generation access 30, and power generation access 30 generates electricity under the action of steam.It can
See, fever access 20 and power generation access 30 can form cogeneration of heat and power together, to effectively utilize nuclear energy.
Optionally, solute is set as alkali metal hydroxide.For example, setting solute as sodium hydroxide, potassium hydroxide etc..This
Inventive embodiments do not limit this in detail, can be configured according to the actual situation.
Above-mentioned heat and power system includes steam generator and the fever access connecting respectively with steam generator and power generation access；
The first solution for setting solute and nuclear island liquid are carried out heat exchange processing by steam generator, obtain setting solute the second solution and
Steam；Fever access the second solution for exporting steam generator is transmitted to heat release position, heat release position to the second solution into
Row dilution heat release processing, and the first solution that processing obtains is transmitted back to steam generator；The access that generates electricity receives steam generator
The steam of output, and generate electricity under the action of steam.Through the embodiment of the present invention, heat and power system is using the second solution as heat accumulation
Medium avoids heat loss caused by long pipeline, realizes the efficient long-distance sand transport of nuclear power station heat, solves heat transfer
Problem, also, form cogeneration of heat and power and efficiently utilize nuclear energy.
In another embodiment, as shown in Fig. 2, the present embodiment what is involved is in heat and power system generate heat access one kind can
The structure of choosing.On the basis of above-mentioned embodiment illustrated in fig. 1, fever access 20 includes heat exchanger 21, temperature-decreased pressure reducer 22, puts
Hot device 23 and recycling unit 24；Heat exchanger 21 connect and recycles respectively the company of unit 24 with steam generator 10, temperature-decreased pressure reducer 22
It connects；Radiator 23 is arranged in heat release position, connect respectively with temperature-decreased pressure reducer 22 and recycling unit 24；Heat exchanger 21, for pair
The first solution that the second solution and recycling unit 24 that steam generator 10 exports return carries out heat exchange processing, and heat exchange is handled
The second solution afterwards is transmitted to temperature-decreased pressure reducer 22, and will heat exchange treated that the first solution is transmitted to steam generator 10；
Temperature-decreased pressure reducer 22, the second solution exported for heat exchanging device 21 carry out pressure and temperature reducing processing, and by the after pressure and temperature reducing
Two solution are transmitted to radiator 23；Radiator 23, the second solution for exporting to temperature-decreased pressure reducer 22 are diluted at heat release
Reason, obtains the first solution after processing；Unit 24 is recycled, the first solution for exporting radiator 23 is transmitted back to heat exchanger 21.
In the present embodiment, fever access 20 includes heat exchanger 21, temperature-decreased pressure reducer 22, radiator 23 and recycles unit 24,
Wherein, heat exchanger 21 respectively with steam generator 10, temperature-decreased pressure reducer 22 and recycling unit 24 connect, radiator 23 respectively with
Temperature-decreased pressure reducer 22 and recycling unit 24 connect.Radiator 23 is arranged in heat release position, for example, being arranged radiator 23 in house
Building, office building, school, the heat releases such as hospital position, can be for heating of house.The embodiment of the present invention does not limit heat release position in detail
It is fixed, it can be configured according to the actual situation.
First solution carries out heat exchange processing in steam generator 10, and the second solution is obtained after concentration.Then, the second solution
Inflow heat exchanger 21, the second heat exchanger 21, which carries out heat exchange processing to the second solution, makes the second solution cool down.Then, after cooling
Two solution flow into temperature-decreased pressure reducer 22, and temperature-decreased pressure reducer 22 further does decrease temperature and pressure processing to the second solution.Then, desuperheat subtracts
The second solution after pressure is transferred to radiator 23, and radiator 23 is diluted heat release processing to the second solution, and the second solution is put
Heat is used for heating, while obtaining diluted first solution.Later, the first solution is transferred to heat exchanger by recycling unit 24
21, heat exchanger 21 cools down to the second solution using the first solution, then the first solution be transmitted back to steam generator 10 so as to
It recycles.
Above-mentioned recycling unit 24 includes sequentially connected clarifier 241, condenser 242 and increasing temperature and pressure unit 243；Only
Change device 241 and connect radiator 23, increasing temperature and pressure unit 243 connects heat exchanger 21；Clarifier 241, for being exported to radiator 23
The first solution carry out purified treatment；Condenser 242, the first solution for exporting clarifier 241 are transmitted to increasing temperature and pressure
Unit 243, and the cooling steam exhaust in transmission process；Increasing temperature and pressure unit 243, the first solution for being exported to condenser 242
Increasing temperature and pressure processing is carried out, and the first solution is transmitted back to heat exchanger 21 by treated.
Specifically, recycling unit 24 includes sequentially connected clarifier 241, condenser 242 and increasing temperature and pressure unit 243,
Wherein, clarifier 241 connects radiator 23, and increasing temperature and pressure unit 243 connects heat exchanger 21.First solution is flowed out from radiator 23
Enter clarifier 241 afterwards, clarifier 241 carries out purified treatment to the first solution, conforms to the impurity content in the first solution
It asks.Then, the first solution enters condenser 242 from the outflow of clarifier 241, and the first solution is transmitted to heating and risen by condenser 242
Unit 243 is pressed, steam exhaust can be cooled down in this transmission process, makes full use of the heat in steam exhaust, is increasing the whole thermal efficiency
While, no pollution to the environment.Then, the first solution enters increasing temperature and pressure unit 243, and increasing temperature and pressure unit 243 is molten to first
Liquid carries out increasing temperature and pressure processing, then the first solution is transmitted back to heat exchanger 21 by treated.Heat exchanger 21 is by the first solution and
Two solution carry out heat exchange processing, so that the second solution is cooled down, the first solution is then transmitted back to steam generator 10.
Optionally, above-mentioned increasing temperature and pressure unit 243 includes that sequentially connected low pressure feed water pumps 2431, low-pressure heater
2432, high pressure water pump 2433 and high-pressure heater 2434；2431 connection condenser 242 of low pressure feed water pump, high-pressure heater
2434 connection heat exchangers 21；Low pressure feed water pump 2431, the first solution exported for condenser 242 is transmitted to low-pressure heater
2432；Low-pressure heater 2432, for carrying out primary heating to the first solution of 2431 output of low pressure feed water pump, and will be primary
The first solution after heating is transmitted to high pressure water pump 2433；High pressure water pump 2433, for exporting low-pressure heater 2432
The first solution be transmitted to high-pressure heater 2434；High-pressure heater 2434, first for being exported to high pressure water pump 2433
Solution carries out reheating, and the first solution after reheating is exported to heat exchanger 21.
Specifically, increasing temperature and pressure unit 243 includes sequentially connected low pressure feed water pump 2431, low-pressure heater 2432, height
Press feed pump 2433 and high-pressure heater 2434；2431 connection condenser 242 of low pressure feed water pump, the connection of high-pressure heater 2434 are changed
Hot device 21.First solution enters low pressure feed water pump 2431 after the outflow of condenser 242, and low pressure feed water pumps 2431 for the first solution
It is transmitted to low-pressure heater 2432.Low-pressure heater 2432 carries out first time heating to the first solution, and first after primary heating
Solution flows into high pressure water pump 2433.Then, the first solution is transmitted to high-pressure heater 2434, high pressure by high pressure water pump 2433
Heater 2434 carries out second to the first solution and heats, the first solution inflow heat exchanger 21 after reheating.The present invention is real
Example is applied not limit low pressure feed water pump 2431, low-pressure heater 2432, high pressure water pump 2433 and high-pressure heater 2434 in detail
It is fixed, it can be chosen according to the actual situation.
Optionally, above-mentioned recycling unit 24 further includes transmission pump 244, and transmission pump 244 is separately connected clarifier 241 and coagulates
Vapour device 242；Transmission pump 244, the first solution for exporting clarifier 241 are transmitted to condenser 242.
Specifically, transmission pump 244 can also be set in recycling unit 24 between clarifier 241 and condenser 242, transmitted
The first solution that pump 244 exports clarifier 241 is transmitted to condenser 242.The embodiment of the present invention does not make in detail transmission pump 244
It limits, can be chosen according to the actual situation.
Optionally, fever access 20 further includes booster 25, and booster 25 is separately connected radiator 23 and recycling unit 24；
Booster 25, the first solution for exporting to radiator 23 carries out boosting processing, and the first solution after boosting is transmitted to
Recycle unit 24.
Specifically, booster 25 can also be set in fever access 20, and booster 25 is separately connected radiator 23 and returns
Receive the clarifier 241 in unit 24.First solution enters booster 25 after the outflow of radiator 23, and booster 25 is molten to first
Liquid carries out boosting processing, and the first solution after boosting is then transmitted to clarifier 241.
Above-mentioned fever access includes heat exchanger, temperature-decreased pressure reducer, radiator and recycling unit, and recycling unit includes purification
Device, condenser and increasing temperature and pressure unit, increasing temperature and pressure unit include low pressure feed water pump, low-pressure heater, high pressure water pump and height
Press heater.Through the embodiment of the present invention, the second solution can be pipelined to the heat release position where user, then put
Heat is for heating of house out.Due to avoiding heat loss caused by long pipeline, realizing using the second solution as heat-storage medium
The efficient long-distance sand transport of nuclear power station heat, solves the problems, such as heat transfer.
Further, condenser can be heated the first solution, be taken full advantage of nuclear power station with output pure water, increasing temperature and pressure unit
The heat of generation improves heating efficiency.
In another embodiment, as shown in Fig. 2, the present embodiment what is involved is in heat and power system generate electricity access one kind can
The structure of choosing.On the basis of above-mentioned embodiment illustrated in fig. 1, power generation access 30 includes sequentially connected steam turbine 31 and generator
32, steam turbine 31 connects steam generator 10；Steam turbine 31, for receiving the steam of the output of steam generator 10, and in steam
Mechanical energy is generated when acting；Generator 32, for converting mechanical energy into electric energy.
In the present embodiment, power generation access 30 includes steam turbine 31 and generator 32, and steam turbine 31 is separately connected steam generation
Device 10 and generator 32.A large amount of steam that steam generator 10 generates enter steam turbine 31, when steam does work in steam turbine 31
Steam turbine 31 generates mechanical energy.Then mechanical energy is passed to generator 32 by steam turbine 31, and electric organ converts mechanical energy into electricity
It can be carried out power generation.In this way, fever access 20 and power generation access 30 together form cogeneration of heat and power, nuclear energy is efficiently utilized.
Optionally, steam turbine 31 includes steam turbine high-pressure cylinder 311, steam-water separator 312 and turbine low pressure cylinder 313；Vapour
Turbine high pressure cylinder 311 generates mechanical energy in steam acting for receiving the steam of the output of steam generator 10, will be a part of
Steam is exported to steam-water separator 312, and another part steam is exported to fever access 20；Steam-water separator 312, for vapour
The steam that turbine high pressure cylinder 311 exports carries out steam-water separation, and by the vapor transmission isolated to turbine low pressure cylinder 313；Vapour
Turbine low pressure (LP) cylinder 313 generates mechanical energy in steam acting, by mechanical energy for receiving the steam of the output of steam-water separator 312
It is transferred to generator 32, steam is exported to fever access 20.
Specifically, steam turbine 31 includes steam turbine high-pressure cylinder 311, steam-water separator 312 and turbine low pressure cylinder 313.It steams
Vapour enters the acting of steam turbine high-pressure cylinder 311, the generation mechanical energy of steam turbine high-pressure cylinder 311, also, steam turbine high-pressure cylinder 311 for one
Some vapor is exported to steam-water separator 312, by another part steam export to fever access 20 high-pressure heater 2434, i.e.,
The first solution is heated using this some vapor.After some vapor is output to steam-water separator 312, steam-water separator 312
Steam-water separation is carried out to this some vapor, by the vapor transmission isolated to turbine low pressure cylinder 313.Steam is input to steam turbine
It does work after low pressure (LP) cylinder 313, turbine low pressure cylinder 313 generates mechanical energy.Then, mechanical energy is transferred to by turbine low pressure cylinder 313
Generator 32, and a part of steam is exported to the low-pressure heater 2432 of fever access 20, i.e., it is heated using this some vapor
Another part is exported to condenser 242 and carries out condensate processing, thus output pure water by the first solution.
Above-mentioned power generation access includes steam turbine and generator；Steam turbine receives the steam of steam generator output, and is steaming
Vapour generates mechanical energy when doing work；Generator converts mechanical energy into electric energy.Through the embodiment of the present invention, power generation access and fever are logical
Road forms cogeneration of heat and power, efficiently utilizes nuclear energy.Further, some vapor is transmitted in fever access by power generation access,
Efficiently utilize the heat of steam.
Referring to shown in Fig. 3, the embodiment of the invention provides a kind of control method of heat and power system based on nuclear power station, applications
In such as above-mentioned heat and power system, which includes the steam generator 10, fever access 20 and power generation access 30 of nuclear power station；
This method comprises:
Step 401, the first solution for setting solute and nuclear island liquid are carried out heat exchange processing by control steam generator 10, are obtained
To the second solution and steam of setting solute；Wherein, the concentration of the second solution is higher than the concentration of the first solution.
In the present embodiment, nuclear island liquid carries huge heat and flows into steam generator 10, and steam generator 10 will set molten
The first solution and nuclear island liquid of matter carry out heat exchange processing, obtain the second solution and a large amount of steam.Wherein, the concentration of the second solution
Higher than the concentration of the first solution.
Step 402, control fever access 20 the second solution for exporting steam generator 10 is transmitted to heat release position, and
Heat release position is diluted heat release processing to the second solution, and the first solution that processing obtains is transmitted back to steam generator 10.
In the present embodiment, referring to Fig. 2, steam generator 10 exports the second solution, and the second solution flows into fever access 20
Heat exchanger 21.In heat exchanger 21, the second solution exchanges heat with the first solution, the second solution after being cooled down.Then, it drops
The second solution after temperature flows into temperature-decreased pressure reducer 22, and temperature-decreased pressure reducer 22 carries out pressure and temperature reducing processing to the second solution.Then,
Second solution is transmitted to the radiator 23 of heat release position, radiator 23 is diluted heat release processing to the second solution, and second is molten
Liquid releases heat for heating, while obtaining diluted first solution.Later, the first solution flow to booster stations, booster stations pair
First solution carries out boosting processing.Then, the clarifier 241 of boosting treated the first solution is transferred to recycling unit 24,
Clarifier 241 carries out purified treatment to the first solution.The first solution after purified treatment is transmitted to condenser by transmission pump 244
242, cooling steam exhaust during transmitting the first solution of condenser 242.Later, the first solution is followed by low pressure feed water pump
2431, low-pressure heater 3431, high pressure water pump 2433, high-pressure heater 2434.It is flowed by the first solution heated twice
Heat exchange processing is carried out with the second solution in heat exchanger 21, then, the first solution flows back to steam generator 10 and recycles.
Step 403, control power generation access 30 receives the steam that steam generator 10 generates, and sends out under the action of steam
Electricity.
In the present embodiment, referring to Fig. 2, steam generator 10 exports steam, and steam enters the turbine high-pressure of steam turbine 31
Cylinder 311, steam turbine high-pressure cylinder 311 generate mechanical energy when steam does work, while by a part of vapor transmission to steam-water separator
312, by another part vapor transmission to high-pressure heater 2434.The steam for being transmitted to high-pressure heater 2434 can be used for heating
First solution.Later, steam-water separator 312 carries out steam-water separation to the steam received, and the steam after steam-water separation is passed
Transport to turbine low pressure cylinder 313.Turbine low pressure cylinder 313 generates mechanical energy when steam does work, and mechanical energy is transferred to power generation
Machine 32 generates electricity so that generator 32 converts mechanical energy into electric energy.Also, turbine low pressure cylinder 313 is by a part of steam
Output to generate heat access 20 low-pressure heater 2432, using this some vapor heat the first solution, by another part export to
Condenser 242 carries out condensate processing, thus output pure water.
In the control method of the above-mentioned heat and power system based on nuclear power station, control steam generator is molten by set solute first
Liquid and nuclear island liquid carry out heat exchange processing, obtain the second solution and steam of setting solute；Fever access is controlled by steam generation
Second solution of device output is transmitted to heat release position, and is diluted heat release processing to the second solution in heat release position, will handle
The first obtained solution is transmitted back to steam generator；Control power generation access receives the steam of steam generator output, and in steam
Under the action of generate electricity.Through the embodiment of the present invention, the second solution can be pipelined to the heat release position where user, so
Heat is released afterwards for heating of house.Access generate heat using the second solution as heat-storage medium, avoids heat waste caused by long pipeline
It loses, realizes the efficient long-distance sand transport of nuclear power station heat, solve the problems, such as heat transfer.And generate heat access and power generation access
It is formed together cogeneration of heat and power, efficiently utilizes nuclear energy.
It should be understood that although each step in the flow chart of Fig. 3 is successively shown according to the instruction of arrow, this
A little steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly state otherwise herein, these steps
It executes there is no the limitation of stringent sequence, these steps can execute in other order.Moreover, at least part in Fig. 3
Step may include that perhaps these sub-steps of multiple stages or stage are executed in synchronization to multiple sub-steps
It completes, but can execute at different times, the execution sequence in these sub-steps or stage, which is also not necessarily, successively to be carried out,
But it can be executed in turn or alternately at least part of the sub-step or stage of other steps or other steps.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of heat and power system based on nuclear power station, which is characterized in that the system comprises: steam generator and respectively with it is described
The fever access and power generation access of steam generator connection；
The steam generator, the first solution and nuclear island liquid for that will set solute carry out heat exchange processing, obtain described set
Determine the second solution and steam of solute；Wherein, the concentration of second solution is higher than the concentration of first solution；
The fever access, the second solution for exporting the steam generator is transmitted to heat release position, in the heat release
Position is diluted heat release processing to second solution, and the first solution that processing obtains is transmitted back to the steam generation
Device；
The power generation access for receiving the steam of the steam generator output, and generates electricity under the action of the steam.
2. system according to claim 1, which is characterized in that the fever access includes heat exchanger, temperature-decreased pressure reducer, puts
Hot device and recycling unit；The heat exchanger connects with the steam generator, the temperature-decreased pressure reducer and the recycling unit respectively
It connects；The radiator is arranged in the heat release position, connect respectively with the temperature-decreased pressure reducer and the recycling unit；
The heat exchanger, the first solution that the second solution and the recycling unit for exporting to the steam generator return
Carry out heat exchange processing, and will heat exchange treated the second solution the is transmitted to temperature-decreased pressure reducer, and will heat exchange treated
First solution is transmitted to the steam generator；
The temperature-decreased pressure reducer, the second solution for exporting to the heat exchanger carries out pressure and temperature reducing processing, and desuperheat is subtracted
The second solution after pressure is transmitted to the radiator；
The radiator, the second solution for exporting to the temperature-decreased pressure reducer are diluted heat release processing, obtain after processing
First solution；
Unit is recycled, the first solution for exporting the radiator is transmitted back to the heat exchanger.
3. system according to claim 2, which is characterized in that the recycling unit includes sequentially connected clarifier, coagulates
Vapour device and increasing temperature and pressure unit；The clarifier connects the radiator, and the increasing temperature and pressure unit connects the heat exchanger；
The clarifier, the first solution for exporting to the radiator carry out purified treatment；
The condenser, the first solution for exporting the clarifier is transmitted to the increasing temperature and pressure unit, and is transmitting
Steam exhaust is cooled down in the process；
The increasing temperature and pressure unit, the first solution for exporting to the condenser carry out increasing temperature and pressure processing, and will processing
The first solution afterwards is transmitted back to the heat exchanger.
4. system according to claim 3, which is characterized in that the recycling unit further includes transmission pump, the transmission pump
It is separately connected the clarifier and the condenser；
The transmission pump, the first solution for exporting the clarifier are transmitted to the condenser.
5. system according to claim 3, which is characterized in that the increasing temperature and pressure unit include sequentially connected low pressure to
Water pump, low-pressure heater, high pressure water pump and high-pressure heater；The low pressure feed water pump connects the condenser, the high pressure
Heater connects the heat exchanger；
The low pressure feed water pump, the first solution for exporting the condenser are transmitted to the low-pressure heater；
The low-pressure heater for carrying out primary heating to the first solution of low pressure feed water pump output, and will once add
The first solution after heat is transmitted to the high pressure water pump；
The high pressure water pump, the first solution for exporting the low-pressure heater are transmitted to the high-pressure heater；
The high-pressure heater, the first solution for exporting to the high pressure water pump carries out reheating, and adds secondary
The first solution after heat is exported to the heat exchanger.
6. system according to claim 5, which is characterized in that the fever access further includes booster, the booster
It is separately connected the radiator and the recycling unit；
The booster, the first solution for exporting to the radiator carry out boosting processing, and first after boosting is molten
Liquid is transmitted to the recycling unit.
7. system according to claim 1-6, which is characterized in that the power generation access includes sequentially connected vapour
Turbine and generator, the steam turbine connect the steam generator；
The steam turbine generates mechanical energy for receiving the steam of the steam generator output, and in steam acting；
The generator, for the mechanical energy to be converted to electric energy.
8. system according to claim 7, which is characterized in that the steam turbine includes steam turbine high-pressure cylinder, steam-water separation
Device and turbine low pressure cylinder；
The steam turbine high-pressure cylinder generates machine in steam acting for receiving the steam of the steam generator output
Tool energy exports a part of steam to the steam-water separator, and another part steam is exported to the fever access；
The steam-water separator, steam for exporting to the steam turbine high-pressure cylinder carries out steam-water separation, and will isolate
Vapor transmission is to the turbine low pressure cylinder；
The turbine low pressure cylinder generates machine in steam acting for receiving the steam of the steam-water separator output
The mechanical energy is transferred to the generator by tool energy, and the steam is exported to the fever access.
9. system according to claim 8, which is characterized in that the solute that sets is alkali metal hydroxide.
10. a kind of control method of the heat and power system based on nuclear power station, which is characterized in that be applied to as claim 1-9 is any
Heat and power system described in, the heat and power system include the steam generator, fever access and power generation access of nuclear power station；The side
Method includes:
It controls the steam generator and the first solution for setting solute and nuclear island liquid is subjected to heat exchange processing, obtain the setting
The second solution and steam of solute；Wherein, the concentration of second solution is higher than the concentration of first solution；
It controls the second solution that the fever access exports the steam generator and is transmitted to heat release position, and in the heat release
Position is diluted heat release processing to second solution, and the first solution that processing obtains is transmitted back to the steam generator；
It controls the power generation access and receives the steam of the steam generator output, and generate electricity under the action of the steam.
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| CN112967827A (en) * | 2021-02-03 | 2021-06-15 | 中国能源建设集团广东省电力设计研究院有限公司 | Fused salt energy storage coupling power generation system and method for fusion reactor |
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