CN107191343A - A kind of full load fused salt steam generating system and its control method - Google Patents
A kind of full load fused salt steam generating system and its control method Download PDFInfo
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- CN107191343A CN107191343A CN201710632824.4A CN201710632824A CN107191343A CN 107191343 A CN107191343 A CN 107191343A CN 201710632824 A CN201710632824 A CN 201710632824A CN 107191343 A CN107191343 A CN 107191343A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
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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
- F22B1/06—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being molten; Use of molten metal, e.g. zinc, as heat transfer medium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The present invention discloses a kind of full load fused salt steam generating system and control method, system is made up of preheater, evaporator, drum, superheater, high temperature melting salt cellar, middle temperature molten salt tank, low-temperature molten salt tank, pump for liquid salts, valve, temperature measuring equipment and measurement of discharge device, and wherein device of working medium turns into superheated steam sequentially through preheater, evaporator, drum and superheater；High-temperature molten salt is exchanged heat by superheater, temperature molten salt tank in return；Middle temperature molten salt is divided into two-way, respectively enters evaporator or preheater；Evaporator outlet fused salt is also classified into two-way, respectively enters low-temperature molten salt tank or preheater.The system will be decoupled by the heat transfer process in superheater, evaporator and preheater, the flow rate of molten salt by superheater, evaporator and preheater can be controlled respectively by controlling opening of valve in load variations, realize that steam parameter is stable and solidification risk of the fused salt in preheater is greatly reduced while output.
Description
【Technical field】
The invention belongs to solar light-heat power-generation field, and in particular to a kind of full load fused salt steam generating system and its control
Method processed.
【Background technology】
Solar light-heat power-generation is to be collected solar thermal energy using solar collecting device, and steaming is provided by heat-exchanger rig
Vapour, with reference to traditional steam turbine generator, reaches the purpose of generating.The tower of heat-transfer fluid and heat-storage medium is wherein used as using fused salt
The characteristics of having Large Copacity energy storage with slot type solar-thermal generating system, can realize in the case where night or sun resource be not good
The stable output of generated output, therefore with application prospect widely.
Compared to photovoltaic generation and wind-power electricity generation, load is controllable to be a big advantage in photo-thermal power station, therefore is accomplished by steamer
When machine is run under different load, fused salt steam generating system has stronger ability to bear to load variations, can stablize and export
The superheated steam of certain parameter.Fig. 1 is the principle sketch of traditional fused salt steam generating system, and feedwater passes sequentially through pre- from bottom to top
Hot device, evaporator, drum and superheater；The hot melt salt of hot salt cellar outlet passes sequentially through superheater, evaporator, preheating from top to bottom
Cold salt cellar is returned to after device, feedwater passes through and turns into superheated steam after fused salt countercurrent flow, into steam turbine acting.This system pair
The adaptability of load variations is weaker, because each equipment end difference requires that flow rate of molten salt can not change with feedwater flow during load variations
Ratio changes, therefore easily occurs：1) superheater outlet steam overtemperature；2) the problem of preheater outlet temperature of molten salt is too low, leads
Cause fused salt in high temperature section heat surplus in low-temperature zone shortage of heat.
Although some existing patents are (for example, Chinese patent, grant number：The B of CN 103511208) report the change of some loads
The method of stable output in the case of change, but these methods be to sacrifice the effective heat exchange amount of fused salt as cost, or bypass portion
Divide the fused salt for entering superheater；Saturation water in drum is introduced by preheater using circulating pump, heated using fused salt extra
Device of working medium to improve feed temperature.These methods cause the significant wastage of fused salt quantity of heat storage, reduce fused salt utilization rate,
Unit fused salt can be unfavorable for the economy with heat storage solar energy light heat power station using hourage reduction.Therefore, design one kind can be
Safe and highly efficient operation under full load condition, and realize that the stable fused salt steam generating system for exporting qualified steam is urgently to be resolved hurrily
Problem.
【The content of the invention】
In view of the shortcomings of the prior art, present invention aims at provide a kind of full load fused salt steam generating system and its control
Method processed, can be in safe and highly efficient operation under full load condition, and realizes the stable qualified steam of output.
To reach above-mentioned purpose, the present invention, which is adopted the following technical scheme that, to be achieved：
A kind of full load fused salt steam generating system, including preheater, evaporator, drum, superheater, high temperature melting salt cellar,
Middle temperature molten salt tank and low-temperature molten salt tank；
The outlet of high temperature melting salt cellar fused salt is connected with superheater fused salt entrance, the outlet of superheater fused salt and middle temperature molten salt tank fused salt
Entrance is connected, and middle temperature molten salt tank fused salt outlet is divided into two-way, is connected all the way with evaporator fused salt entrance, all the way with preheater fused salt
Entrance is connected, and the outlet of evaporator fused salt is divided into two-way, is connected all the way with preheater fused salt entrance, and another road is melted with low-temperature molten salt tank
Salt first entrance is connected, and the outlet of preheater fused salt is connected with low-temperature molten salt tank fused salt second entrance；
The device of working medium entrance of system is connected with preheater device of working medium entrance, the outlet of preheater device of working medium and evaporator device of working medium
Entrance is connected, and the outlet of evaporator saturated vapor is connected with drum saturated vapor entrance, drum saturation water out and evaporator saturation
Water inlet is connected, and the outlet of drum saturated vapor is connected with superheater saturated vapor entrance, the outlet of superheater superheated steam and steamer
The entrance of machine is connected；
It is exported in high temperature melting salt cellar fused salt on the pipeline of superheater fused salt entrance and is provided with the first valve, adjusts entrance
The high-temperature molten salt flow of superheater；The pipeline that middle temperature molten salt tank fused salt is exported to evaporator fused salt entrance is provided with the second valve,
To adjust the middle temperature molten salt flow into evaporator；Middle temperature molten salt tank fused salt is exported on the pipeline of preheater fused salt entrance and set
There is the 3rd valve, to adjust the middle temperature molten salt flow into preheater；Evaporator fused salt is exported to preheater fused salt entrance
Pipeline is provided with the 4th valve, enters the flow rate of molten salt of preheater by evaporator to adjust；Evaporator fused salt is exported to low temperature
The pipeline of fused salt tank fused salt first entrance is provided with the 5th valve, enters the fused salt stream of low-temperature molten salt tank by evaporator to adjust
Amount；
Inside high temperature melting salt cellar, inside middle temperature molten salt tank, inside low-temperature molten salt tank, superheater fused salt entrance and superheater
Fused salt outlet, evaporator fused salt entrance and the outlet of evaporator fused salt, preheater fused salt entrance and the outlet of preheater fused salt are equipped with
Temperature measuring equipment to detect temperature of molten salt；
In the position residing for the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve on pipeline close to valve
Put and be equipped with the flow measurement device for detecting flow rate of molten salt.
Further, the fused salt working medium is the Molten Binary Salts that sodium nitrate and potassium nitrate are mixed by a certain percentage.
Further, the preheater, evaporator and superheater are U-tube shell heat exchanger, for preheater and superheater,
Fused salt working medium walks shell-side, and device of working medium walks pipe side；For evaporator, fused salt working medium walks pipe side, and device of working medium walks shell-side.
Further, the drum is the drum with water separator and continuous blow off equipment.
Further, first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve be butterfly valve, diaphragm valve,
Any one in check-valves, stop valve, choke valve, ball valve, plug valve, gate valve.
A kind of control method of full load fused salt steam generating system, when steam turbine is in heavy-duty service, system entry
Device of working medium order by preheater, evaporator, drum and superheater, is changed into the superheated steam that temperature is A and enters steamer successively
Machine does work, and the pipeline that high temperature melting salt cellar fused salt is exported to superheater fused salt entrance is provided with the first valve wide open, makes high-temperature molten salt
The high-temperature molten salt that tank comes out by entering after superheater in temperature molten salt tank；Middle temperature molten salt tank fused salt is exported to evaporator fused salt entrance
Pipeline be provided with the second valve wide open, it is complete provided with the 4th valve that evaporator fused salt is exported to the pipeline of preheater fused salt entrance
Open, while the pipeline that middle temperature molten salt tank fused salt is exported to preheater fused salt entrance is fully closed provided with the 3rd valve, evaporator fused salt
The pipeline for being exported to low-temperature molten salt tank fused salt first entrance is fully closed provided with the 5th valve, the middle Wen Rong for coming out middle temperature molten salt tank
Order is by evaporator and preheater successively for salt, into low-temperature molten salt tank；High temperature melting salt cellar is internal, middle temperature molten salt tank is internal, low
Inside temperature molten salt tank, it is superheater fused salt entrance and the outlet of superheater fused salt, evaporator fused salt entrance and the outlet of evaporator fused salt, pre-
The temperature measuring equipment of hot device fused salt entrance and preheater fused salt outlet detects temperature of molten salt in real time；
When steam turbine switches from high load capacity to underload, the device of working medium pressure and flow of system entry reduce, device of working medium
Order is changed into superheated steam and done work into steam turbine by preheater, evaporator, drum and superheater successively；High temperature melting salt cellar
The pipeline that fused salt is exported to superheater fused salt entrance reduces provided with the first valve opening, controls the high-temperature molten salt by superheater
Flow, the superheat steam temperature for maintaining the outlet of superheater superheated steam is B；Middle temperature molten salt tank fused salt is exported to evaporator fused salt and entered
The pipeline of mouth reduces provided with the second valve opening, while middle temperature molten salt tank fused salt is exported on the pipeline of preheater fused salt entrance
Provided with the increase of the 3rd valve opening, the pipeline that evaporator fused salt is exported to low-temperature molten salt tank fused salt first entrance is provided with the 5th valve
Door is fully closed, the middle temperature molten salt that middle temperature molten salt tank comes out is divided into two-way, and order, by evaporator and preheater, enters successively all the way
Low-temperature molten salt tank, another road enters low temperature after being mixed with evaporator outlet fused salt by preheater, return low-temperature molten salt tank, maintenance
The temperature of molten salt of fused salt tank is in safe temperature；High temperature melting salt cellar is internal, inside middle temperature molten salt tank, inside low-temperature molten salt tank, mistake
The outlet of hot device fused salt entrance and superheater fused salt, evaporator fused salt entrance and the outlet of evaporator fused salt, preheater fused salt entrance and
The temperature measuring equipment of preheater fused salt outlet detects temperature of molten salt in real time；
When steam turbine is in underrun, the device of working medium pressure and flow of system entry continue to reduce, and device of working medium is successively
Order is changed into superheated steam and done work into steam turbine by preheater, evaporator, drum and superheater；High temperature melting salt cellar fused salt
The pipeline for being exported to superheater fused salt entrance reduces provided with the first valve opening, the high-temperature molten salt stream that control passes through superheater
Amount, the superheat steam temperature for maintaining the outlet of superheater superheated steam is C；Middle temperature molten salt tank fused salt is exported to evaporator fused salt entrance
Pipeline reduce provided with the second valve opening, middle temperature molten salt tank fused salt is exported to the pipeline of preheater fused salt entrance provided with the
Three valve openings increase, while the pipeline that evaporator fused salt is exported to preheater fused salt entrance is complete provided with the 4th valve opening
Close, the pipeline that evaporator fused salt is exported to low-temperature molten salt tank fused salt first entrance is opened provided with the 5th valve, makes middle temperature molten salt
The middle temperature molten salt that tank comes out is divided into two-way, a-road-through pervaporation device, into low-temperature molten salt tank, and another road passes through preheater, enters
Low-temperature molten salt tank, maintains the temperature of molten salt for entering low-temperature molten salt tank to be in safe temperature；High temperature melting salt cellar is internal, middle temperature molten salt tank
Inside internal, low-temperature molten salt tank, superheater fused salt entrance and the outlet of superheater fused salt, evaporator fused salt entrance and evaporator fused salt
The temperature measuring equipment of outlet, preheater fused salt entrance and the outlet of preheater fused salt detects temperature of molten salt in real time；
When steam turbine switches from underload to high load capacity, device of working medium pressure and the flow increase of system entry, device of working medium
Order is changed into superheated steam and done work into steam turbine by preheater, evaporator, drum and superheater successively；High temperature melting salt cellar
Fused salt is exported to the pipeline of superheater fused salt entrance provided with the increase of the first valve opening, controls the high-temperature molten salt by superheater
Flow, the superheat steam temperature for maintaining the outlet of superheater superheated steam is D；Middle temperature molten salt tank fused salt is exported to evaporator fused salt and entered
The pipeline of mouth increases provided with the second valve opening, and the pipeline that middle temperature molten salt tank fused salt is exported to preheater fused salt entrance is provided with
3rd valve opening reduces, while the pipeline that evaporator fused salt is exported to preheater fused salt entrance is opened provided with the 4th valve,
The pipeline that evaporator fused salt is exported to low-temperature molten salt tank fused salt first entrance is fully closed provided with the 5th valve, goes out middle temperature molten salt tank
The middle temperature molten salt come is divided into two-way, and order is by evaporator and preheater successively all the way, into low-temperature molten salt tank, and another road is with steaming
Send out after device outlet fused salt mixing by preheater, into low-temperature molten salt tank, maintain the temperature of molten salt for entering low-temperature molten salt tank to be in
Safe temperature；High temperature melting salt cellar is internal, inside middle temperature molten salt tank, inside low-temperature molten salt tank, superheater fused salt entrance and superheater
The thermometric of fused salt outlet, evaporator fused salt entrance and the outlet of evaporator fused salt, preheater fused salt entrance and the outlet of preheater fused salt
Device detects temperature of molten salt in real time.
Further, the temperature of fused salt working medium is fused salt working medium in 530-590 DEG C, middle temperature molten salt tank in the high temperature melting salt cellar
Temperature be 370-460 DEG C, the temperature of fused salt working medium is 260-300 DEG C in low-temperature molten salt tank.
Further, the device of working medium temperature of the system entry is 200-285 DEG C；The overheat of superheater superheated steam outlet is steamed
Vapour A temperature is 510-560 DEG C.
Further, the pressure for the superheated steam that superheater superheated steam is exported is 10-15MPa during the heavy-duty service.
Further, the pressure for the superheated steam that superheater superheated steam is exported is not less than 5MPa during the underrun.
Compared with prior art, the present invention at least has the advantages that：
1. temperature molten salt tank in being introduced into fused salt steam generating system, thoroughly by superheater, evaporator and preheater
Heat transfer process is decoupled, and 3 heat exchangers are not influenceed by upstream and downstream during load variations, beneficial to the control of parameter, makes full use of fused salt heat
Amount；
2. load changes between high load capacity and underload, therefrom temperature molten salt in temperature molten salt tank extension, with preheater
Entrance fused salt is blended, and improves pre-heater inlet temperature of molten salt, and preheater outlet temperature of molten salt can be avoided too low, significantly dropped
Solidification risk of the eutectic salt in preheater；
3. under low loading conditions, the temperature of molten salt of evaporator outlet is relatively low, this part fused salt is directly returned low
Temperature molten salt tank, while therefrom temperature molten salt enters preheater in temperature molten salt tank extension, is exchanged heat with device of working medium, is greatly reduced
Under low load condition in preheater fused salt solidification risk；
4. the temperature of molten salt for entering low-temperature molten salt tank is effectively controlled under full load, it is to avoid in low-temperature molten salt tank
Temperature of molten salt is too low, reduces that low-temperature molten salt tank is electrically heat tracing to put into operation the time, reduces station service power consumption rate, improves power station economy.
【Brief description of the drawings】
Fig. 1 is the schematic diagram of fused salt steam generating system in the prior art；
Fig. 2 is present system schematic diagram；
Each part and respective markers are in above-mentioned figure：1- preheaters；2- evaporators；3- drums；4- superheaters；5- high temperature meltings
Salt cellar；Temperature molten salt tank in 6-；7- low-temperature molten salt tanks；8- high-temperature melting salt pumps；Temperature molten salt pump in 9-；10- device of working medium entrances；11- vapour
Turbine；The valves of 12- first；The valves of 13- second；The valves of 14- the 3rd；The valves of 15- the 4th；The valves of 16- the 5th；21- evaporators melt
Salt entrance；22- evaporators fused salt is exported；23- evaporator device of working medium entrances；24- evaporators saturated vapor is exported；25- evaporators
Saturation water inlet；31- drum saturated vapor entrances；32- drum saturation water outs；33- drums saturated vapor is exported；41- is overheated
Device fused salt entrance；42- superheaters fused salt is exported；43- superheater saturated vapor entrances；44- superheaters superheated steam is exported；51-
High temperature melting salt cellar fused salt is exported；Temperature molten salt tank fused salt entrance in 61-；Temperature molten salt tank fused salt is exported in 62-；71- low-temperature molten salt tanks
Fused salt first entrance；72- low-temperature molten salt tank fused salt second entrances；111- preheater fused salt entrances；112- preheaters fused salt is exported；
113- preheater device of working medium entrances；114- preheaters device of working medium is exported.
【Embodiment】
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Description, embodiment described herein is only a part of embodiment of the present invention, and not all embodiment.Based on this hair
Embodiment in bright, the every other embodiment that those of ordinary skill in the art are obtained under the premise of no creative work,
Belong to the scope of the present invention.
As shown in Fig. 2 the invention provides a kind of full load fused salt steam generating system, by preheater 1, evaporator 2, vapour
Bag 3, superheater 4, high temperature melting salt cellar 5, middle temperature molten salt tank 6, low-temperature molten salt tank 7 and pump for liquid salts, valve, pipeline, steam turbine, temperature
Spend measurement apparatus and flow measurement device composition.
Wherein, high temperature melting salt cellar fused salt outlet 51 is connected with superheater fused salt entrance 41, and superheater fused salt outlet 42 is with
Temperature molten salt tank fused salt entrance 61 is connected, and it is two-way that middle temperature molten salt tank fused salt, which exports 62 points, all the way with the phase of evaporator fused salt entrance 21
Even, it is connected all the way with preheater fused salt entrance 111, it is two-way that evaporator fused salt, which exports 22 points, all the way with preheater fused salt entrance
111 are connected, and another road is connected with low-temperature molten salt tank fused salt first entrance 71, and preheater fused salt outlet 112 is melted with low-temperature molten salt tank
Salt second entrance 72 is connected；Device of working medium entrance 10 is connected with preheater device of working medium entrance 113, preheater device of working medium outlet 114 with
Evaporator device of working medium entrance 23 is connected, and evaporator saturated vapor outlet 24 is connected with drum saturated vapor entrance 31, drum saturation
Water out 32 is connected with evaporator saturation water inlet 25, drum saturated vapor outlet 33 and the phase of superheater saturated vapor entrance 43
Even, superheater superheated steam outlet 44 is connected with the entrance of steam turbine 11；
The first valve 12 is provided with high temperature melting salt cellar fused salt outlet 51 to the pipeline of superheater fused salt entrance 41, to adjust
Section enters the high-temperature molten salt flow of superheater 4；Set on middle temperature molten salt tank fused salt outlet 62 to the pipeline of evaporator fused salt entrance 21
There is the second valve 13, to adjust the middle temperature molten salt flow into evaporator 2；Middle temperature molten salt tank fused salt outlet 62 is molten to preheater
The pipeline of salt entrance 111 is provided with the 3rd valve 14, to adjust the middle temperature molten salt flow into preheater 1；Evaporator fused salt
Outlet 22 to the pipeline of preheater fused salt entrance 111 is provided with the 4th valve 15, enters preheater 1 by evaporator 2 to adjust
Flow rate of molten salt；Evaporator fused salt outlet 22 to the pipeline of low-temperature molten salt tank fused salt first entrance 71 is provided with the 5th valve 16,
Enter the flow rate of molten salt of low-temperature molten salt tank 7 by evaporator 2 to adjust；
Inside high temperature melting salt cellar 5, inside middle temperature molten salt tank 6, inside low-temperature molten salt tank 7, the and of superheater fused salt entrance 41
Superheater fused salt outlet 42, evaporator fused salt entrance 21 and evaporator fused salt outlet 22, preheater fused salt entrance 111 and preheater
Fused salt outlet 112 is provided with temperature measuring equipment, to detect temperature of molten salt.
Leaned on residing for first valve 12, the second valve 13, the 3rd valve 14, the 4th valve 15, the 5th valve 16 on pipeline
The position of nearly valve is provided with flow measurement device, to detect flow rate of molten salt.
A kind of control method of full load fused salt steam generating system, when steam turbine 11 is in heavy-duty service, system enters
Order, by preheater 1, evaporator 2, drum 3 and superheater 4, is changed into the superheated steam that temperature is A to the device of working medium of mouth 10 successively
Done work into steam turbine 11, the pipeline of high temperature melting salt cellar fused salt outlet 51 to superheater fused salt entrance 41 is provided with the first valve 12
Standard-sized sheet, temperature molten salt tank 6 in making the high-temperature molten salt that high temperature melting salt cellar 5 comes out by entering after superheater 4；Middle temperature molten salt tank fused salt goes out
The pipeline of mouth 62 to evaporator fused salt entrance 21 is provided with the standard-sized sheet of the second valve 13, evaporator fused salt outlet 22 to preheater fused salt
The pipeline of entrance 111 is provided with the standard-sized sheet of the 4th valve 15, while middle temperature molten salt tank fused salt exports 62 to preheater fused salt entrance 111
Pipeline it is fully closed provided with the 3rd valve 14, evaporator fused salt outlet 22 is on the pipeline of low-temperature molten salt tank fused salt first entrance 71
It is fully closed provided with the 5th valve 16, make the middle temperature molten salt that middle temperature molten salt tank 6 comes out successively sequentially by evaporator 2 and preheater 1, enter
Enter low-temperature molten salt tank 7；High temperature melting salt cellar 5 is internal, inside middle temperature molten salt tank 6, inside low-temperature molten salt tank 7, superheater fused salt entrance
41 and superheater fused salt outlet 42, evaporator fused salt entrance 21 and evaporator fused salt outlet 22, preheater fused salt entrance 111 and pre-
The temperature measuring equipment of hot device fused salt outlet 112 detects temperature of molten salt in real time；
When steam turbine 11 switches from high load capacity to underload, the device of working medium pressure and flow of system entry 10 reduce, water
Order, by preheater 1, evaporator 2, drum 3 and superheater 4, is changed into superheated steam and done work into steam turbine 11 working medium successively；
High temperature melting salt cellar fused salt outlet 51 to the pipeline of superheater fused salt entrance 41 reduces provided with the aperture of the first valve 12, and control passes through
The high-temperature molten salt flow of superheater 4, the superheat steam temperature for maintaining superheater superheated steam outlet 44 is B；Middle temperature molten salt tank melts
Salt outlet 62 to the pipeline of evaporator fused salt entrance 21 reduces provided with the aperture of the second valve 13, while middle temperature molten salt tank fused salt goes out
The pipeline of mouth 62 to preheater fused salt entrance 111 increases provided with the aperture of the 3rd valve 14, evaporator fused salt outlet 22 to low temperature
The pipeline of fused salt tank fused salt first entrance 71 is fully closed provided with the 5th valve 16, the middle temperature molten salt point for coming out middle temperature molten salt tank 6
For two-way, order is by evaporator 2 and preheater 1 successively all the way, into low-temperature molten salt tank 7, and another road and the outlet of evaporator 2 are molten
By preheater 1 after salt mixing, low-temperature molten salt tank 7 is returned, maintains the temperature of molten salt for entering low-temperature molten salt tank 7 to be in safety temperature
Degree；High temperature melting salt cellar 5 is internal, inside middle temperature molten salt tank 6, inside low-temperature molten salt tank 7, superheater fused salt entrance 41 and superheater it is molten
Salt outlet 42, evaporator fused salt entrance 21 and evaporator fused salt outlet 22, preheater fused salt entrance 111 and the outlet of preheater fused salt
112 temperature measuring equipment detects temperature of molten salt in real time；
When steam turbine 11 is in underrun, the device of working medium pressure and flow of system entry 10 continue to reduce, device of working medium
Order is changed into superheated steam and done work into steam turbine 11 by preheater 1, evaporator 2, drum 3 and superheater 4 successively；High temperature
Fused salt tank fused salt outlet 51 to the pipeline of superheater fused salt entrance 41 reduces provided with the aperture of the first valve 12, and control passes through overheat
The high-temperature molten salt flow of device 4, the superheat steam temperature for maintaining superheater superheated steam outlet 44 is C；Middle temperature molten salt tank fused salt goes out
Mouthfuls 62 reduce provided with the aperture of the second valve 13 to the pipeline of evaporator fused salt entrance 21, and middle temperature molten salt tank fused salt exports 62 to pre-
The pipeline of hot device fused salt entrance 111 increases provided with the aperture of the 3rd valve 14, while evaporator fused salt outlet 22 is molten to preheater
The pipeline of salt entrance 111 is fully closed provided with the aperture of the 4th valve 15, evaporator fused salt outlet 22 to low-temperature molten salt tank fused salt first
The pipeline of entrance 71 is opened provided with the 5th valve 16, the middle temperature molten salt that middle temperature molten salt tank 6 comes out is divided into two-way, is passed through all the way
Evaporator 2, into low-temperature molten salt tank 7, another road is by preheater 1, into low-temperature molten salt tank 7, maintains to enter low-temperature molten salt tank 7
Temperature of molten salt be in safe temperature；High temperature melting salt cellar 5 is internal, inside middle temperature molten salt tank 6, inside low-temperature molten salt tank 7, superheater
Fused salt entrance 41 and superheater fused salt outlet 42, evaporator fused salt entrance 21 and evaporator fused salt outlet 22, preheater fused salt enter
Mouth 111 and the temperature measuring equipment of preheater fused salt outlet 112 detect temperature of molten salt in real time；
When steam turbine 11 switches from underload to high load capacity, device of working medium pressure and the flow increase of system entry 10, water
Order, by preheater 1, evaporator 2, drum 3 and superheater 4, is changed into superheated steam and done work into steam turbine 11 working medium successively；
High temperature melting salt cellar fused salt outlet 51 to the pipeline of superheater fused salt entrance 41 increases provided with the aperture of the first valve 12, and control passes through
The high-temperature molten salt flow of superheater 4, the superheat steam temperature for maintaining superheater superheated steam outlet 44 is D；Middle temperature molten salt tank melts
Salt outlet 62 to the pipeline of evaporator fused salt entrance 21 increases provided with the aperture of the second valve 13, middle temperature molten salt tank fused salt outlet 62
Pipeline to preheater fused salt entrance 111 reduces provided with the aperture of the 3rd valve 14, while evaporator fused salt exports 22 to preheating
The pipeline of device fused salt entrance 111 is opened provided with the 4th valve 15, evaporator fused salt outlet 22 to low-temperature molten salt tank fused salt first
The pipeline of entrance 71 is fully closed provided with the 5th valve 16, the middle temperature molten salt that middle temperature molten salt tank 6 comes out is divided into two-way, all the way successively
Order is by evaporator 2 and preheater 1, into low-temperature molten salt tank 7, and another road is exported after fused salt is mixed by pre- with evaporator 2
Hot device 1, into low-temperature molten salt tank 7, maintains the temperature of molten salt for entering low-temperature molten salt tank 7 to be in safe temperature；In high temperature melting salt cellar 5
Inside portion, middle temperature molten salt tank 6, inside low-temperature molten salt tank 7, superheater fused salt entrance 41 and superheater fused salt outlet 42, evaporator
Fused salt entrance 21 and the temperature measuring equipment of evaporator fused salt outlet 22, preheater fused salt entrance 111 and preheater fused salt outlet 112 are real
When detect temperature of molten salt.
The temperature of fused salt working medium is the temperature of fused salt working medium in 530-590 DEG C, middle temperature molten salt tank 6 in the high temperature melting salt cellar 5
Spend for 400-460 DEG C, the temperature of fused salt working medium is 260-300 DEG C in low-temperature molten salt tank 7.
The device of working medium temperature of the system entry 10 is 200-285 DEG C；The superheated steam A of superheater superheated steam outlet 44
Temperature be 510-560 DEG C, during heavy-duty service superheater superheated steam outlet 44 superheated steam pressure be 10-15MPa.
The temperature difference of the superheated steam B and superheated steam A are no more than 5 DEG C, and superheated steam C and superheated steam the A temperature difference are not
More than 5 DEG C, superheated steam D and superheated steam the A temperature difference are no more than 5 DEG C.
The maximum of the high load capacity is the 105% of steam turbine rated load, and the device of working medium of preheater 1 goes out during heavy-duty service
Super cooling degree of water at mouth 114 is 2-8 DEG C.
The safe temperature of the fused salt of low-temperature molten salt tank 7 is 260-300 DEG C.
The condition that the steam turbine 11 switches from high load capacity to underload is when evaporator fused salt exports 22 temperature of molten salt
Time less than 310 DEG C is more than 10s；Steam turbine 11 switches to the condition of underload to be when evaporator fused salt exports 22 temperature of molten salt
Time less than 290 DEG C is more than 10s；The condition that steam turbine 11 switches from underload to high load capacity is when evaporator fused salt outlet 22
Time of the temperature of molten salt higher than 290 DEG C is more than 20s；Steam turbine 11 switches to the condition of high load capacity to be when evaporator fused salt outlet 22
Time of the temperature of molten salt higher than 310 DEG C is more than 20s.
With reference to embodiment, the present invention will be further described.
Apparatus structure in each embodiment is identical, as shown in Figure 2.
Embodiment 1
Steam turbine 11 is in heavy-duty service, and the device of working medium that pressure is 14Mpa, temperature is 250 DEG C is entered by system device of working medium
Mouthfuls 10 enter system, in preheater 1, evaporator 2 and superheater 4 continuously with after fused salt heat exchanging, the outlet of superheater superheated steam
44 superheat steam temperature is 550 DEG C.Temperature of molten salt in high temperature melting salt cellar 5 is 565 DEG C, and high-temperature melting salt pump 8 is by high-temperature molten salt
Exchanged heat from feeding superheater 4 after the extraction of high temperature melting salt cellar 5 with water vapour, temperature molten salt tank 6 during the fused salt after heat exchange is returned.The
Two valves 13, the standard-sized sheet of the 4th valve 15, the 3rd valve 14, the 5th valve 16 are fully closed.Temperature of molten salt in middle temperature molten salt tank 6 is
430 DEG C, middle temperature molten salt is sent into evaporator 2 after therefrom temperature molten salt tank 6 is drawn by middle temperature molten salt pump 9, is exchanged heat, changed with device of working medium
Fused salt after heat continues through preheater 1 and exchanged heat with device of working medium, and the fused salt after heat exchange returns to low-temperature molten salt tank 7.Each temperature
Measurement apparatus and the temperature and flow results of flow measurement device detection are listed in table 1.
Embodiment 2
Steam turbine 11 is in the transient process from high load capacity to underload, the water conservancy project that pressure is 10Mpa, temperature is 250 DEG C
Matter enters system by system device of working medium entrance 10, in preheater 1, evaporator 2 and superheater 4 continuously with after fused salt heat exchanging, mistake
The superheat steam temperature of hot device superheated steam outlet 44 is 553 DEG C.Temperature of molten salt in high temperature melting salt cellar 5 is 565 DEG C, high temperature melting
Salt pump 8 is sent into superheater 4 after high-temperature molten salt is drawn from high temperature melting salt cellar 5 and exchanged heat with water vapour, and the fused salt after heat exchange is returned
Temperature molten salt tank 6 in returning.Second valve 13, the aperture of the 4th valve 15 reduce, and the 3rd valve 14 is opened, and the 5th valve 16 is fully closed.In
Temperature of molten salt in temperature molten salt tank 6 is 430 DEG C, and middle temperature molten salt is therefrom divided into two by middle temperature molten salt pump 9 after temperature molten salt tank 6 is drawn
Road, all the way send into evaporator 2 exchanged heat with device of working medium, another road mixed with the fused salt that evaporator 2 is exported after by preheater 1
Exchanged heat with device of working medium, the fused salt after heat exchange returns to low-temperature molten salt tank 7.Each temperature measuring equipment and flow measurement device detection
Temperature and flow results be listed in table 1.
Embodiment 3
Steam turbine 11 is in underrun, and the device of working medium that pressure is 7Mpa, temperature is 250 DEG C is by system device of working medium entrance
10 enter system, in preheater 1, evaporator 2 and superheater 4 continuously with after fused salt heat exchanging, superheater superheated steam outlet 44
Superheat steam temperature be 554 DEG C.Temperature of molten salt in high temperature melting salt cellar 5 is 565 DEG C, high-temperature melting salt pump 8 by high-temperature molten salt from
Feeding superheater 4 is exchanged heat with water vapour after high temperature melting salt cellar 5 is drawn, temperature molten salt tank 6 during the fused salt after heat exchange is returned.Second
The aperture of valve 13 reduces, and the aperture of the 3rd valve 14 increase, the 4th valve 15 is fully closed, and the 5th valve 16 is opened.In middle temperature molten salt tank 6
Temperature of molten salt be 430 DEG C, middle temperature molten salt pump 9 will in middle temperature molten salt therefrom temperature molten salt tank 6 draw after be divided into two-way, send into all the way
Evaporator 2 is exchanged heat with device of working medium, and the fused salt after heat exchange returns to low-temperature molten salt tank 7.Another road feeding preheater 1 and device of working medium
Exchanged heat, the fused salt after heat exchange returns to low-temperature molten salt tank 7.The temperature of each temperature measuring equipment and flow measurement device detection and
Flow results are listed in table 1.
Embodiment 4
Steam turbine 11 be in from underload to high load capacity transient process, the device of working medium that pressure is 8Mpa, temperature is 250 DEG C by
System device of working medium entrance 10 enters system, in preheater 1, evaporator 2 and superheater 4 continuously with after fused salt heat exchanging, superheater
The superheat steam temperature of superheated steam outlet 44 is 553 DEG C.Temperature of molten salt in high temperature melting salt cellar 5 is 565 DEG C, high-temperature melting salt pump
8 by high-temperature molten salt from high temperature melting salt cellar 5 draw after feeding superheater 4 exchanged heat with water vapour, in the return of fused salt after heat exchange
Temperature molten salt tank 6.Second valve 13, the increase of the aperture of the 4th valve 15, the aperture of the 3rd valve 14 reduce, and the 5th valve 16 is fully closed.In
Temperature of molten salt in temperature molten salt tank 6 is 430 DEG C, and middle temperature molten salt is therefrom divided into two by middle temperature molten salt pump 9 after temperature molten salt tank 6 is drawn
Road, all the way send into evaporator 2 exchanged heat with device of working medium, another road mixed with the fused salt that evaporator 2 is exported after by preheater 1
Exchanged heat with device of working medium, the fused salt after heat exchange returns to low-temperature molten salt tank 7.Each temperature measuring equipment and flow measurement device detection
Temperature and flow results be listed in table 1.
The measurement result of thermometric and measurement of discharge device in the embodiment 1-4 of table 1
Embodiment 5
Steam turbine 11 is in heavy-duty service, and the device of working medium that pressure is 12Mpa, temperature is 235 DEG C is entered by system device of working medium
Mouthfuls 10 enter system, in preheater 1, evaporator 2 and superheater 4 continuously with after fused salt heat exchanging, the outlet of superheater superheated steam
44 superheat steam temperature is 525 DEG C.Temperature of molten salt in high temperature melting salt cellar 5 is 540 DEG C, and high-temperature melting salt pump 8 is by high-temperature molten salt
Exchanged heat from feeding superheater 4 after the extraction of high temperature melting salt cellar 5 with water vapour, temperature molten salt tank 6 during the fused salt after heat exchange is returned.The
Two valves 13, the standard-sized sheet of the 4th valve 15, the 3rd valve 14, the 5th valve 16 are fully closed.Temperature of molten salt in middle temperature molten salt tank 6 is
415 DEG C, middle temperature molten salt pump 9 by middle temperature molten salt after therefrom temperature molten salt tank 6 is drawn feeding evaporator 2 exchanged heat with device of working medium, change
Fused salt after heat continues through preheater 1 and exchanged heat with device of working medium, and the fused salt after heat exchange returns to low-temperature molten salt tank 7.Each temperature
Measurement apparatus and the temperature and flow results of flow measurement device detection are listed in table 2.
Embodiment 6
Steam turbine 11 be in from high load capacity to underload transient process, the device of working medium that pressure is 9Mpa, temperature is 235 DEG C by
System device of working medium entrance 10 enters system, in preheater 1, evaporator 2 and superheater 4 continuously with after fused salt heat exchanging, superheater
The superheat steam temperature of superheated steam outlet 44 is 528 DEG C.Temperature of molten salt in high temperature melting salt cellar 5 is 540 DEG C, high-temperature melting salt pump
8 by high-temperature molten salt from high temperature melting salt cellar 5 draw after feeding superheater 4 exchanged heat with water vapour, in the return of fused salt after heat exchange
Temperature molten salt tank 6.Second valve 13, the aperture of the 4th valve 15 reduce, and the 3rd valve 14 is opened, and the 5th valve 16 is fully closed.Middle Wen Rong
Temperature of molten salt in salt cellar 6 is 415 DEG C, and middle temperature molten salt is therefrom divided into two-way, one by middle temperature molten salt pump 9 after temperature molten salt tank 6 is drawn
Road feeding evaporator 2 exchanged heat with device of working medium, another road mixed with the fused salt that evaporator 2 is exported after by preheater 1 and water
Working medium is exchanged heat, and the fused salt after heat exchange returns to low-temperature molten salt tank 7.The temperature of each temperature measuring equipment and flow measurement device detection
Degree and flow results are listed in table 2.
Embodiment 7
Steam turbine 11 is in underrun, and the device of working medium that pressure is 6Mpa, temperature is 235 DEG C is by system device of working medium entrance
10 enter system, in preheater 1, evaporator 2 and superheater 4 continuously with after fused salt heat exchanging, superheater superheated steam outlet 44
Superheat steam temperature be 528 DEG C.Temperature of molten salt in high temperature melting salt cellar 5 is 540 DEG C, high-temperature melting salt pump 8 by high-temperature molten salt from
Feeding superheater 4 is exchanged heat with water vapour after high temperature melting salt cellar 5 is drawn, temperature molten salt tank 6 during the fused salt after heat exchange is returned.Second
The aperture of valve 13 reduces, and the aperture of the 3rd valve 14 increase, the 4th valve 15 is fully closed, and the 5th valve 16 is opened.In middle temperature molten salt tank 6
Temperature of molten salt be 415 DEG C, middle temperature molten salt is therefrom divided into two-way by middle temperature molten salt pump 9 after temperature molten salt tank 6 is drawn, all the way feeding steam
Hair device 2 is exchanged heat with device of working medium, and the fused salt after heat exchange returns to low-temperature molten salt tank 7.Another road feeding preheater 1 enters with device of working medium
Row heat exchange, the fused salt after heat exchange returns to low-temperature molten salt tank 7.The temperature and stream of each temperature measuring equipment and flow measurement device detection
Amount result is listed in table 2.
Embodiment 8
Steam turbine 11 be in from underload to high load capacity transient process, the device of working medium that pressure is 7Mpa, temperature is 235 DEG C by
System device of working medium entrance 10 enters system, in preheater 1, evaporator 2 and superheater 4 continuously with after fused salt heat exchanging, superheater
The superheat steam temperature of superheated steam outlet 44 is 527 DEG C.Temperature of molten salt in high temperature melting salt cellar 5 is 540 DEG C, high-temperature melting salt pump
8 by high-temperature molten salt from high temperature melting salt cellar 5 draw after feeding superheater 4 exchanged heat with water vapour, in the return of fused salt after heat exchange
Temperature molten salt tank 6.Second valve 13, the increase of the aperture of the 4th valve 15, the aperture of the 3rd valve 14 reduce, and the 5th valve 16 is fully closed.In
Temperature of molten salt in temperature molten salt tank 6 is 415 DEG C, and middle temperature molten salt is therefrom divided into two by middle temperature molten salt pump 9 after temperature molten salt tank 6 is drawn
Road, all the way send into evaporator 2 exchanged heat with device of working medium, another road mixed with the fused salt that evaporator 2 is exported after by preheater 1
Exchanged heat with device of working medium, the fused salt after heat exchange returns to low-temperature molten salt tank 7.Each temperature measuring equipment and flow measurement device detection
Temperature and flow results be listed in table 2.
The measurement result of thermometric and measurement of discharge device in the embodiment 5-8 of table 2
Above example is merely to illustrate technical scheme rather than its limitations, although with reference to above-described embodiment pair
The present invention is described in detail, and those of ordinary skill in the art can still be carried out to specific embodiments of the present invention
Modification or equivalent substitution, and these any modifications or equivalent substitution without departing from spirit and scope of the invention, it exists
Within the claims of the present invention.
Claims (10)
1. a kind of full load fused salt steam generating system, it is characterised in that：Including preheater (1), evaporator (2), drum (3),
Superheater (4), high temperature melting salt cellar (5), middle temperature molten salt tank (6) and low-temperature molten salt tank (7)；
High temperature melting salt cellar fused salt outlet (51) is connected with superheater fused salt entrance (41), superheater fused salt outlet (42) and middle Wen Rong
Salt cellar fused salt entrance (61) is connected, and middle temperature molten salt tank fused salt outlet (62) is divided into two-way, all the way with evaporator fused salt entrance (21)
It is connected, is connected all the way with preheater fused salt entrance (111), evaporator fused salt outlet (22) is divided into two-way, it is molten with preheater all the way
Salt entrance (111) be connected, another road is connected with low-temperature molten salt tank fused salt first entrance (71), preheater fused salt export (112) and
Low-temperature molten salt tank fused salt second entrance (72) is connected；
The device of working medium entrance (10) of system is connected with preheater device of working medium entrance (113), and preheater device of working medium outlet (114) is with steaming
Send out device device of working medium entrance (23) to be connected, evaporator saturated vapor outlet (24) is connected with drum saturated vapor entrance (31), drum
Saturation water out (32) is connected with evaporator saturation water inlet (25), drum saturated vapor outlet (33) and superheater saturated vapor
Entrance (43) is connected, and superheater superheated steam outlet (44) is connected with the entrance of steam turbine (11)；
The first valve (12) is provided with high temperature melting salt cellar fused salt outlet (51) to the pipeline of superheater fused salt entrance (41), is used to
Regulation enters the high-temperature molten salt flow of superheater (4)；Middle temperature molten salt tank fused salt exports (62) to evaporator fused salt entrance (21)
Pipeline is provided with the second valve (13), to adjust the middle temperature molten salt flow into evaporator (2)；Middle temperature molten salt tank fused salt outlet
(62) pipeline to preheater fused salt entrance (111) is provided with the 3rd valve (14), to adjust the middle temperature into preheater (1)
Flow rate of molten salt；Evaporator fused salt exports (22) to the pipeline of preheater fused salt entrance (111) and is provided with the 4th valve (15), is used to
Adjust the flow rate of molten salt for entering preheater (1) by evaporator (2)；Evaporator fused salt exports (22) to low-temperature molten salt tank fused salt first
The pipeline of entrance (71) is provided with the 5th valve (16), enters the fused salt stream of low-temperature molten salt tank (7) by evaporator (2) to adjust
Amount；
High temperature melting salt cellar (5) is internal, middle temperature molten salt tank (6) is internal, low-temperature molten salt tank (7) is internal, superheater fused salt entrance
(41) enter with superheater fused salt outlet (42), evaporator fused salt entrance (21) and evaporator fused salt outlet (22), preheater fused salt
Mouth (111) and preheater fused salt outlet (112) are equipped with to detect the temperature measuring equipment of temperature of molten salt；
In the first valve (12), the second valve (13), the 3rd valve (14), the 4th valve (15), the residing pipe of the 5th valve (16)
Position on road close to valve is equipped with to detect the flow measurement device of flow rate of molten salt.
2. full load fused salt steam generating system according to claim 1, it is characterised in that：The fused salt working medium is nitric acid
The Molten Binary Salts that sodium and potassium nitrate are mixed by a certain percentage.
3. full load fused salt steam generating system according to claim 1, it is characterised in that：The preheater (1), evaporation
Device (2) and superheater (4) are U-tube shell heat exchanger, and for preheater (1) and superheater (4), fused salt working medium walks shell-side, water
Working medium walks pipe side；For evaporator (2), fused salt working medium walks pipe side, and device of working medium walks shell-side.
4. the full load fused salt steam generating system according to claim any one of 1-3, it is characterised in that：The drum
(3) it is the drum with water separator and continuous blow off equipment.
5. the full load fused salt steam generating system according to claim any one of 1-3, it is characterised in that：First valve
Door (12), the second valve (13), the 3rd valve (14), the 4th valve (15), the 5th valve (16) are butterfly valve, diaphragm valve, non-return
Any one in valve, stop valve, choke valve, ball valve, plug valve, gate valve.
6. a kind of control method of claim 1 fused salt steam generating system, it is characterised in that：
When steam turbine (11) is in heavy-duty service, order passes through preheater (1), evaporation to the device of working medium of system entry (10) successively
Device (2), drum (3) and superheater (4), are changed into the superheated steam that temperature is A and are done work into steam turbine (11), high temperature melting salt cellar melts
Salt exports (51) to the pipeline of superheater fused salt entrance (41) and is provided with the first valve (12) standard-sized sheet, goes out high temperature melting salt cellar (5)
Temperature molten salt tank (6) during the high-temperature molten salt come is entered afterwards by superheater (4)；Middle temperature molten salt tank fused salt outlet (62) is molten to evaporator
The pipeline of salt entrance (21) is provided with the second valve (13) standard-sized sheet, and evaporator fused salt exports (22) to preheater fused salt entrance
(111) pipeline is provided with the 4th valve (15) standard-sized sheet, while middle temperature molten salt tank fused salt exports (62) to preheater fused salt entrance
(111) pipeline is fully closed provided with the 3rd valve (14), and evaporator fused salt exports (22) to low-temperature molten salt tank fused salt first entrance
(71) pipeline is fully closed provided with the 5th valve (16), and the middle temperature molten salt for coming out middle temperature molten salt tank (6) sequentially passes through successively to be steamed
Device (2) and preheater (1) are sent out, into low-temperature molten salt tank (7)；High temperature melting salt cellar (5) is internal, middle temperature molten salt tank (6) is internal, low temperature
Fused salt tank (7) is internal, superheater fused salt entrance (41) and superheater fused salt export (42), evaporator fused salt entrance (21) and evaporation
The temperature measuring equipment of device fused salt outlet (22), preheater fused salt entrance (111) and preheater fused salt outlet (112) detects fused salt in real time
Temperature；
When steam turbine (11) switches from high load capacity to underload, the device of working medium pressure and flow of system entry (10) reduce, water
Order, by preheater (1), evaporator (2), drum (3) and superheater (4), is changed into superheated steam and enters steam turbine working medium successively
(11) do work；High temperature melting salt cellar fused salt outlet (51) to the pipeline of superheater fused salt entrance (41) is opened provided with the first valve (12)
Degree reduces, and control maintains the superheated steam temperature of superheater superheated steam outlet (44) by the high-temperature molten salt flow of superheater (4)
Spend for B；Middle temperature molten salt tank fused salt outlet (62) to the pipeline of evaporator fused salt entrance (21) is provided with the second valve (13) aperture
Reduce, while middle temperature molten salt tank fused salt, which exports (62) to the pipeline of preheater fused salt entrance (111), is provided with the 3rd valve (14)
Aperture increases, and evaporator fused salt exports (22) to the pipeline of low-temperature molten salt tank fused salt first entrance (71) and is provided with the 5th valve
(16) it is fully closed, the middle temperature molten salt that middle temperature molten salt tank (6) comes out is divided into two-way, all the way successively order by evaporator (2) and in advance
Hot device (1), into low-temperature molten salt tank (7), another road is exported after fused salt is mixed by preheater (1) with evaporator (2), is returned low
Temperature molten salt tank (7), maintains the temperature of molten salt for entering low-temperature molten salt tank (7) to be in safe temperature；High temperature melting salt cellar (5) is internal, in
Temperature molten salt tank (6) is internal, low-temperature molten salt tank (7) is internal, superheater fused salt entrance (41) and superheater fused salt export (42), evaporation
Device fused salt entrance (21) and evaporator fused salt outlet (22), preheater fused salt entrance (111) and preheater fused salt are exported (112)
Temperature measuring equipment detects temperature of molten salt in real time；
When steam turbine (11) is in underrun, the device of working medium pressure and flow of system entry (10) continue to reduce, device of working medium
Order is changed into superheated steam into steam turbine (11) by preheater (1), evaporator (2), drum (3) and superheater (4) successively
Acting；High temperature melting salt cellar fused salt outlet (51) to the pipeline of superheater fused salt entrance (41) subtracts provided with the first valve (12) aperture
Small, control passes through the high-temperature molten salt flow of superheater (4), and the superheat steam temperature for maintaining superheater superheated steam outlet (44) is
C；Middle temperature molten salt tank fused salt outlet (62) to the pipeline of evaporator fused salt entrance (21) reduces provided with the second valve (13) aperture,
Middle temperature molten salt tank fused salt outlet (62) to the pipeline of preheater fused salt entrance (111) increases provided with the 3rd valve (14) aperture,
Evaporator fused salt outlet (22) simultaneously is fully closed provided with the 4th valve (15) aperture to the pipeline of preheater fused salt entrance (111),
Evaporator fused salt exports (22) to the pipeline of low-temperature molten salt tank fused salt first entrance (71) and opened provided with the 5th valve (16), makes
The middle temperature molten salt that middle temperature molten salt tank (6) comes out is divided into two-way, and a-road-through pervaporation device (2) is another into low-temperature molten salt tank (7)
Road into low-temperature molten salt tank (7), maintains the temperature of molten salt for entering low-temperature molten salt tank (7) to be in safety temperature by preheater (1)
Degree；High temperature melting salt cellar (5) is internal, middle temperature molten salt tank (6) is internal, low-temperature molten salt tank (7) is internal, superheater fused salt entrance (41) and
Superheater fused salt outlet (42), evaporator fused salt entrance (21) and evaporator fused salt outlet (22), preheater fused salt entrance (111)
The temperature measuring equipment for exporting (112) with preheater fused salt detects temperature of molten salt in real time；
When steam turbine (11) switches from underload to high load capacity, device of working medium pressure and the flow increase of system entry (10), water
Order, by preheater (1), evaporator (2), drum (3) and superheater (4), is changed into superheated steam and enters steam turbine working medium successively
(11) do work；High temperature melting salt cellar fused salt outlet (51) to the pipeline of superheater fused salt entrance (41) is opened provided with the first valve (12)
Degree increase, control maintains the superheated steam temperature of superheater superheated steam outlet (44) by the high-temperature molten salt flow of superheater (4)
Spend for D；Middle temperature molten salt tank fused salt outlet (62) to the pipeline of evaporator fused salt entrance (21) is provided with the second valve (13) aperture
Increase, the pipeline of middle temperature molten salt tank fused salt outlet (62) to preheater fused salt entrance (111) is provided with the 3rd valve (14) aperture
Reduce, opened while evaporator fused salt exports (22) to the pipeline of preheater fused salt entrance (111) provided with the 4th valve (15),
Evaporator fused salt outlet (22) is fully closed provided with the 5th valve (16) to the pipeline of low-temperature molten salt tank fused salt first entrance (71), makes
The middle temperature molten salt that middle temperature molten salt tank (6) comes out is divided into two-way, and order, by evaporator (2) and preheater (1), enters successively all the way
Low-temperature molten salt tank (7), another road is exported after fused salt is mixed by preheater (1) with evaporator (2), into low-temperature molten salt tank (7),
The temperature of molten salt for entering low-temperature molten salt tank (7) is maintained to be in safe temperature；High temperature melting salt cellar (5) is internal, middle temperature molten salt tank (6) interior
Portion, internal low-temperature molten salt tank (7), superheater fused salt entrance (41) and superheater fused salt outlet (42), evaporator fused salt entrance
And evaporator fused salt outlet (22), preheater fused salt entrance (111) and preheater fused salt export the temperature measuring equipment reality of (112) (21)
When detect temperature of molten salt.
7. the control method of fused salt steam generating system according to claim 6, it is characterised in that：The high temperature melting salt cellar
(5) temperature of fused salt working medium is that the temperature of fused salt working medium in 530-590 DEG C, middle temperature molten salt tank (6) is 370-460 DEG C, low temperature in
The temperature of fused salt working medium is 260-300 DEG C in fused salt tank (7).
8. the control method of fused salt steam generating system according to claim 6, it is characterised in that：The system entry
(10) device of working medium temperature is 200-285 DEG C；The superheated steam A of superheater superheated steam outlet (44) temperature is 510-560
℃。
9. the control method of fused salt steam generating system according to claim 6, it is characterised in that：The heavy-duty service
When the outlet of superheater superheated steam (44) the pressure of superheated steam be 10-15MPa.
10. the control method of fused salt steam generating system according to claim 6, it is characterised in that：The underload fortune
The pressure of the superheated steam of superheater superheated steam outlet (44) is not less than 5MPa during row.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458328A (en) * | 2018-03-20 | 2018-08-28 | 上海锅炉厂有限公司 | A kind of tower type solar photo-thermal steam generating system adjusted using hot melt salt |
| CN109654756A (en) * | 2018-12-28 | 2019-04-19 | 中国葛洲坝集团装备工业有限公司 | A kind of fused salt heat reservoir and its heat change method for solar energy thermo-power station |
| CN110566920A (en) * | 2019-09-12 | 2019-12-13 | 哈尔滨锅炉厂有限责任公司 | Groove tower combines steam generation system |
| CN110906774A (en) * | 2019-12-09 | 2020-03-24 | 东方电气集团东方锅炉股份有限公司 | Concrete heat storage and exchange system for peak regulation heat supply of thermal power plant and operation method thereof |
| CN111425849A (en) * | 2020-03-20 | 2020-07-17 | 哈尔滨锅炉厂有限责任公司 | Peak-shaving pulverized coal boiler with double-layer clean energy and pulverized coal coupled |
| CN114484404A (en) * | 2021-12-29 | 2022-05-13 | 中国华电科工集团有限公司 | Energy storage and steam generation system and method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413719A (en) * | 2007-10-17 | 2009-04-22 | 中国科学院工程热物理研究所 | Tower type solar heat power generation system with double-stage thermal storage |
| CN103511208A (en) * | 2013-09-25 | 2014-01-15 | 青海中控太阳能发电有限公司 | Molten salt steam generating system capable of variable load operation within full-parameter range |
| WO2017073040A1 (en) * | 2015-10-28 | 2017-05-04 | 千代田化工建設株式会社 | Solar thermal power generation system and method for controlling same |
-
2017
- 2017-07-28 CN CN201710632824.4A patent/CN107191343B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413719A (en) * | 2007-10-17 | 2009-04-22 | 中国科学院工程热物理研究所 | Tower type solar heat power generation system with double-stage thermal storage |
| CN103511208A (en) * | 2013-09-25 | 2014-01-15 | 青海中控太阳能发电有限公司 | Molten salt steam generating system capable of variable load operation within full-parameter range |
| WO2017073040A1 (en) * | 2015-10-28 | 2017-05-04 | 千代田化工建設株式会社 | Solar thermal power generation system and method for controlling same |
Non-Patent Citations (1)
| Title |
|---|
| 何石泉等: "高温熔盐蒸汽发生***传热性能研究", 《工程热物理学报》 * |
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| CN108458328A (en) * | 2018-03-20 | 2018-08-28 | 上海锅炉厂有限公司 | A kind of tower type solar photo-thermal steam generating system adjusted using hot melt salt |
| CN109654756A (en) * | 2018-12-28 | 2019-04-19 | 中国葛洲坝集团装备工业有限公司 | A kind of fused salt heat reservoir and its heat change method for solar energy thermo-power station |
| CN110566920A (en) * | 2019-09-12 | 2019-12-13 | 哈尔滨锅炉厂有限责任公司 | Groove tower combines steam generation system |
| CN110906774A (en) * | 2019-12-09 | 2020-03-24 | 东方电气集团东方锅炉股份有限公司 | Concrete heat storage and exchange system for peak regulation heat supply of thermal power plant and operation method thereof |
| CN110906774B (en) * | 2019-12-09 | 2024-01-26 | 东方电气集团东方锅炉股份有限公司 | Concrete heat storage and exchange system for peak shaving and heat supply of thermal power plant and operation method thereof |
| CN111425849A (en) * | 2020-03-20 | 2020-07-17 | 哈尔滨锅炉厂有限责任公司 | Peak-shaving pulverized coal boiler with double-layer clean energy and pulverized coal coupled |
| CN114484404A (en) * | 2021-12-29 | 2022-05-13 | 中国华电科工集团有限公司 | Energy storage and steam generation system and method thereof |
| WO2023123839A1 (en) * | 2021-12-29 | 2023-07-06 | 中国华电科工集团有限公司 | Energy storage and steam generation system and method |
| CN117146249A (en) * | 2023-10-13 | 2023-12-01 | 辽河石油勘探局有限公司 | Molten salt heating direct-flow type wet saturated steam generation system |
| CN117146249B (en) * | 2023-10-13 | 2024-07-09 | 辽河石油勘探局有限公司 | Molten salt heating direct-flow type wet saturated steam generation system |
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