CN206668347U - The system that the high other transformation of boiler combines electric accumulation of heat lifting peak load regulation flexibility - Google Patents
The system that the high other transformation of boiler combines electric accumulation of heat lifting peak load regulation flexibility Download PDFInfo
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- CN206668347U CN206668347U CN201720726364.7U CN201720726364U CN206668347U CN 206668347 U CN206668347 U CN 206668347U CN 201720726364 U CN201720726364 U CN 201720726364U CN 206668347 U CN206668347 U CN 206668347U
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Abstract
The utility model provides the system that a kind of high other transformation of boiler combines electric accumulation of heat lifting peak load regulation flexibility, including main steam high-pressure bypass pressure and temperature reducing device system, hot steam temperature reducing and pressure reducing device system again, hot 220kv buses in steam to low pressure (LP) cylinder temperature-decreased pressure reducer system, electric heat storage system, heating air supply system, condenser, generator, factory again, the main steam high-pressure bypass pressure and temperature reducing device system includes main steam line and main steam bypasses, and the main steam bypass sets high-pressure bypass pressure and temperature reducing device；Steam temperature reducing and pressure reducing device system includes hot jet chimney again and heat steam by-pass again to the heat again, and steam by-pass sets the hot temperature-decreased pressure reducer that draws gas again to the heat again；Steam to low pressure (LP) cylinder temperature-decreased pressure reducer system includes setting heat on lateral an A, the lateral A again to low pressure (LP) cylinder temperature-decreased pressure reducer to the heat again.In the case where not influenceing unit safety stable operation, take unit load to minimum, while increase electric thermal storage equipment, realize that thermoelectricity decouples, complete the requirement of depth peak regulation.
Description
Technical field
Energy field is the utility model is related to, more particularly to a kind of transformed using the high side of boiler combines electric accumulation of heat lifting unit
The system of peak regulation flexibility.
Background technology
For a long time, Chinese Government pays much attention to and is directed to promoting energy transition to change, and Renewable Energy Development obtains
Remarkable achievement.So far, Chinese water power, wind-powered electricity generation and solar power generation installation scale respectively reach 3.2 hundred million kilowatts,
1.3 hundred million kilowatts, 43,000,000 kilowatts, rank first in the world, regenerative resource gross generation also occupies the first in the world.Wind-powered electricity generation continues
While fast-developing, the wind of abandoning of China in Recent Years some areas is abandoned optical issue and also increasingly highlighted.National Energy Board's issue
Wind Power Generation Industry development in 2015 shows that wind-powered electricity generation is abandoned wind and rationed the power supply situation aggravation：Whole year abandons the kilowatt hour of wind-powered electricity generation amount 33,900,000,000, increases on year-on-year basis
Add 21,300,000,000 kilowatt hours, averagely abandon wind rate 15%.Especially Chinese " three Norths " area, because coal-fired thermal power ratio is high, heat supply in winter
Phase peak regulation is difficult, abandons that wind problem is serious, and some areas abandon optical issue and also begin to occur.In order to ensure people's livelihood heat demand, " three
The regional cogeneration of heat and power in north " will also continue to increase, poor plus peaking power source construction condition, and regenerative resource disappears during " 13 "
Situation of receiving is more severe.As the fired power generating unit of " three Norths " regional main force's power supply, power system is promoted by flexibility and adjusted
Power is saved, is one of most direct effective measures.
In order in the case where ensureing unit safety stable operation and stable operation of the boiler, make the participation of unit amplitude peak
Peak regulation, for thermal power plant unit, the subject matter that presently, there are is exactly influence of the electric load to thermic load, that is, electric load is higher
Corresponding thermic load is also higher, and electric load is low, thermic load is also small.Decoupling and depth peak regulation are how realized, is meeting heat demand
In the case of, make unit load smaller, peak modulation capacity is bigger, is current urgent problem.Application No.
CN201610007552.4 Chinese patent, there is provided a kind of steam turbine and therrmodynamic system with depth peak regulating function, including
Intermediate pressure cylinder, synchronous automatic clutch, high pressure cylinder, low pressure (LP) cylinder, intermediate pressure by-pass valve etc., intermediate pressure cylinder, synchronous automatic clutch, high pressure
Cylinder, low pressure (LP) cylinder are connected by shaft coupling according to this, and are connected by low pressure rotor output end with generator, unit depth peak regulation
When, high-pressure admission regulating valve is pressed into steam control valve closing with, is cut off intermediate pressure cylinder by synchronous automatic clutch, high pressure cylinder leads to
Cross ventilation valve to vacuumize, unit high pressure bypass valve and intermediate pressure by-pass valve are opened, and the steam from boiler is directly entered low pressure (LP) cylinder and done
Work(, unit is maintained in relatively low operation of contributing.Though the patent realizes peak load regulation to a certain extent, the peak regulation equipment and
Method can not meet the needs of lifting unit flexibility and thermal power plant's depth peak regulation.
Utility model content
The defects of in order to overcome in the prior art, the utility model provide a kind of high other transformation of boiler and carried with reference to electric accumulation of heat
The system for rising peak load regulation flexibility, in the case where not influenceing unit safety stable operation, takes unit load to minimum.It is rich
Remaining vapour amount by Turbo-generator Set, does not bypass the method for operation, simultaneously by cold section of reheater, hot arc extraction for heat supply and high pressure cylinder
Increase electric thermal storage equipment, realize that thermoelectricity decouples, complete the requirement of depth peak regulation.
Technical scheme is used by the utility model solves aforementioned technical problem：A kind of high other transformation of boiler combines electricity and stored
The system of heat lifting peak load regulation flexibility, including main steam high-pressure bypass pressure and temperature reducing device system, hot steam temperature reducing and pressure reducing device system again
System, heat are again in steam to low pressure (LP) cylinder temperature-decreased pressure reducer system, electric heat storage system, heating air supply system, condenser, generator, factory
220kv buses, the main steam high-pressure bypass pressure and temperature reducing device system includes main steam line and main steam bypasses, by the main steam
Road sets high-pressure bypass pressure and temperature reducing device；Steam temperature reducing and pressure reducing device system includes heat jet chimney and heat again by steam again to the heat again
Road, steam by-pass sets the hot temperature-decreased pressure reducer that draws gas again to the heat again；The heat again steam to low pressure (LP) cylinder temperature-decreased pressure reducer system
Including setting heat on lateral an A, the lateral A again to low pressure (LP) cylinder temperature-decreased pressure reducer.
Preferably, main steam line one end connection boiler, other end connection high pressure cylinder, sets on main steam line
Put electrically operated gate before bypass opening A and main steam pitch.
Any of the above-described scheme is preferably, and electrically operated gate is located at the bypass opening A and high pressure cylinder before the main steam pitch
Between, before being arranged at the high row's non-return flap of steam turbine, to reach depth peak regulation target load, prevent steam turbine high-pressure cylinder differential pressure security
The purpose of action.
Any of the above-described scheme is preferably, and the main steam bypasses one end connection main steam line, and other end connection is cold again
Jet chimney.During peak regulation, the high pressure temperature vapor portion in main steam line enters in main steam bypass, is subtracted by desuperheat by height
Depressor reduces main steam enthalpy, and the steam entered with another way main steam after high pressure cylinder acting mutually converges in cold jet chimney again, enters
Enter cold section of reheater of boiler to be heated.
Any of the above-described scheme is preferably, and jet chimney one end connects boiler reheater to the heat again, in other end connection
Cylinder pressure, the electrically operated gate before heat sets bypass opening B and hot pitch again again on jet chimney.
Any of the above-described scheme is preferably, and electrically operated gate is between bypass opening B and intermediate pressure cylinder before the hot pitch again.Adjust
During peak, the reheated steam after boiler reheater heats, it is partly into intermediate pressure cylinder and normally does work, another part steams again into heat
Vapour bypasses, and heat supply initial station is entered after temperature-decreased pressure reducer, and then be heating network heat supply.
Any of the above-described scheme is preferably, and the heat sets bypass opening C again in steam by-pass, the heat is drawn gas desuperheat again
Pressure reducer is located at the heat of bypass opening C front ends again in steam by-pass, and steam by-pass pipe valve end is connected heat at first stop with heat supply again.
Any of the above-described scheme is preferably, and by bypass opening C connection laterals A, electricity is set on the lateral A
Dynamic regulation door, the electric adjustable section door are located at bypass opening C and heat again between low pressure (LP) cylinder temperature-decreased pressure reducer.
Any of the above-described scheme is preferably, and the lateral A ends connect condenser.
Any of the above-described scheme is preferably, and the condenser is connected with low pressure (LP) cylinder, is set between the low pressure (LP) cylinder and intermediate pressure cylinder
Put steam conveying pipe.When adjusting steam turbine chaser, the steam in steam by-pass enters lateral A to heat again, through overheating again
To low pressure (LP) cylinder temperature-decreased pressure reducer, pressure and temperature reducing is carried out, low pressure (LP) cylinder is finally entered and is cooled down.
Any of the above-described scheme is preferably, and step-up transformer, the step-up transformer and electricity are electrically connected after the generator
Branched line is set between gateway mouth metering device, and the branched line is connected by step-down transformer with electric heat storage system, is adjusted
The peak period, heat energy is converted electrical energy into by electric heat-storage device and inputs heat supply network.
Any of the above-described scheme is preferably, and the electric heat storage system includes solid electric heat-storage device, electrode boiler, injecting type
At least one of electrode boiler, fuse salt regenerative apparatus, heat accumulation water pot.
Any of the above-described scheme is preferably, and the heating air supply system includes heat supply initial station and heat supply pipeline, the heat supply
Initial station is connected by heating water supply line and heating water return pipeline with electric heat storage system.
Any of the above-described scheme is preferably, the main steam line, main steam bypass, cold jet chimney again, hot steam again
Working medium in pipeline, hot steam by-pass, lateral A again is gas, and is had significantly with good mobility and after heated
Dilatancy.
The system that the high other transformation of boiler of the present utility model combines electric accumulation of heat lifting peak load regulation flexibility, throws using by height
Entering heat, heat supply is drawn gas scheme again, and its cardinal principle is, in steam turbine in low- load conditions, it is high it is other put into, by boiler Lai master
Steam divides two-way, is done work all the way into steam turbine, finishes the steam of work(by high pressure cylinder steam discharge to reheater；Another way is by main steaming
Vapour bypass is directly entered reheater after converging by the steam after pressure and temperature reducing and high row's steam.And the steam that reheater comes out is extremely
Suitable position is chosen on pipeline before middle pitch carry out punching and draw gas, the steam come by height is all taken away, in extraction line
On install safety valve, non-return valve, quick closing valve regulating valve, electric check valve etc. additional successively, to realize that external heat supply is drawn gas.And it is to keep electricity
The carbonated drink balance for system of standing, backwater enter oxygen-eliminating device.
The utility model takes full advantage of the heat supply spike period and coincided with the power network underload period, and winter, steam power plant is supplied
The characteristics of hot necessary big load generates electricity, and wind-powered electricity generation yields generating, both can guarantee that heat supply base load, and and can ensures that depth is adjusted
Peak.Practical operation needs are not only more conformed to, while save the energy, are reduced environmental pollution, reduce heat cost, are changed than other
Mode is made more to simplify fast.System architecture and operating process of the present utility model are simple and convenient, it is easy to accomplish, heating efficiency
Height, the environmental protection again of economic, energy-conservation.
Brief description of the drawings
Fig. 1 be the high other transformation of boiler of the present utility model combine electric accumulation of heat lifted peak load regulation flexibility system it is one excellent
Select the schematic diagram of embodiment.
Illustrate：
1- main steam lines, the bypass of 2- main steams, 3- high-pressure bypass pressure and temperature reducing devices, the cold jet chimneys again of 4-, 5- heat steam again
Pipeline, 6- heat steam by-pass again, 7- high pressure cylinders, 8- intermediate pressure cylinders, 9- heat electrically operated gate before pitch again are electronic before 10- main steam pitch
Door, 11- heat are drawn gas temperature-decreased pressure reducer again, and 12- heat supplies initial station, 13- low pressure (LP) cylinders, 14- electric adjustable section doors, 15- heat is again to low pressure (LP) cylinder
Temperature-decreased pressure reducer, 16- condensers, 17- laterals A, 18- generator, 220kv buses in 19- factories, 20- heating water supply lines,
21- heating water return pipelines, 22- electric heat-storage devices.
Embodiment
In order to be further understood that the content of the invention of the present utility model, below in conjunction with specific embodiment to the utility model
It is described in more detail, embodiment only has exemplary effect to the utility model, without the effect of any restrictions；
The insubstantial modifications that any those skilled in the art make on the basis of the utility model, it should all belong to the utility model guarantor
The scope of shield.
Embodiment 1
As shown in figure 1, the system that a kind of high other transformation of boiler combines electric accumulation of heat lifting peak load regulation flexibility, including main steaming
Vapour high-pressure bypass pressure and temperature reducing device system, hot steam temperature reducing and pressure reducing device system again, hot steam again to low pressure (LP) cylinder temperature-decreased pressure reducer system, electricity
Hold over system, heating air supply system, condenser 16, generator 18,220kv buses 19 in factory, the high other desuperheat of the main steam subtract
Depressor system includes main steam line 1 and main steam bypass 2, and the main steam bypass 2 sets high-pressure bypass pressure and temperature reducing device 3；It is described
Steam temperature reducing and pressure reducing device system includes heat jet chimney 5 and hot steam by-pass 6 again again to heat again, and steam by-pass 6 is set the heat again
The hot temperature-decreased pressure reducer 11 that draws gas again；Steam to low pressure (LP) cylinder temperature-decreased pressure reducer system includes a lateral A17 to the heat again, described
Heat is set on lateral A17 again to low pressure (LP) cylinder temperature-decreased pressure reducer 15.
In the present embodiment, the one end of main steam line 1 connection boiler, other end connection high pressure cylinder 7, in main steam pipe
Electrically operated gate 10 before bypass opening A and main steam pitch is set on road 1.
In the present embodiment, before the main steam pitch electrically operated gate 10 between the bypass opening A and high pressure cylinder 7,
Before being arranged at the high row's non-return flap of steam turbine, to reach depth peak regulation target load, prevent the differential pressure security of steam turbine high-pressure cylinder 7 from acting
Purpose.
In the present embodiment, the main steam bypasses 2 one end connection main steam line 1, and the other end connects cold steam pipe again
Road 4.During peak regulation, the high pressure temperature vapor portion in main steam line 1 enters in main steam bypass 2, passes through high-pressure bypass pressure and temperature reducing
Device 3 reduces main steam enthalpy, and the steam entered with another way main steam after high pressure cylinder 7 does work converges in the cold phase of jet chimney again 4, enters
Enter cold section of reheater of boiler to be heated.
In the present embodiment, the one end of jet chimney 5 connection boiler reheater, the other end connect intermediate pressure cylinder 8 to the heat again,
Heat sets electrically operated gate 9 before bypass opening B and hot pitch again again on jet chimney 5.Electrically operated gate 9 is positioned at bypass before the hot pitch again
It is open between B and intermediate pressure cylinder 8.During peak regulation, the reheated steam after boiler reheater heats, it is normal to be partly into intermediate pressure cylinder 8
Acting, another part enter heat steam by-pass 6 again, heat supply initial station 12 are entered after temperature-decreased pressure reducer, and then be heating network
Heat supply.
In the present embodiment, the heat sets bypass opening C again in steam by-pass 6, and the heat is drawn gas temperature-decreased pressure reducer again
11 positioned at bypass opening C front ends heat again in steam by-pass 6, the pipe end of steam by-pass 6 12 is connected heat at first stop with heat supply again.By
Connected at bypass opening C and electric adjustable section door 14, the electric adjustable section door 14 are set on lateral A17, the lateral A17
Positioned at bypass opening C and heat again between low pressure (LP) cylinder temperature-decreased pressure reducer 15.The lateral A17 ends connect condenser 16.
The condenser 16 is connected with low pressure (LP) cylinder 13, and steam conveying pipe is set between the low pressure (LP) cylinder 13 and intermediate pressure cylinder 8.When adjustment vapour
During turbine chaser, the steam in steam by-pass 6 enters lateral A17 to heat again, through overheat again to low pressure (LP) cylinder temperature-decreased pressure reducer 15,
Pressure and temperature reducing is carried out, low pressure (LP) cylinder 13 is finally entered and is cooled down.
In the present embodiment, step-up transformer, the step-up transformer and power network critical point are electrically connected after the generator 18
Branched line is set between metering device, the branched line is connected by step-down transformer with electric heat storage system, the peak regulation period,
Heat energy is converted electrical energy into by electric heat-storage device 22 and inputs heat supply network.
In the present embodiment, the electric heat storage system includes solid electric heat-storage device 22.The solid electric heat-storage device 22
Using solid material heat storage technology, the heat storage medium of the device has the characteristics that specific heat is big, density is big, high temperature resistant, the present embodiment
In the preferable compression brick that solid heat storage medium is high temperature resistant solid alloy material or content of MgO is more than 90%.In peak regulation
Under the low load condition of period, unnecessary electric energy can be converted into heat energy by heat storage medium and be stored by the device,
And hot swapping is utilized under high loads, the heat energy of storage is discharged to heating or hot water supply system.
In the present embodiment, the heating air supply system includes heat supply initial station 12 and heat supply pipeline, the heat supply initial station 12
It is connected by heating water supply line 20 and heating water return pipeline 21 with electric heat storage system.
In the present embodiment, the main steam line 1, main steam bypass 2, cold jet chimney again 4, heat again jet chimney 5,
Working medium in hot steam by-pass 6, lateral A17 again is gas, and is had significantly with good mobility and after heated
Dilatancy.
The system that the high other transformation of boiler of the present utility model combines electric accumulation of heat lifting peak load regulation flexibility, throws using by height
Entering heat, heat supply is drawn gas scheme again, and its cardinal principle is, in steam turbine in low- load conditions, it is high it is other put into, by boiler Lai master
Steam divides two-way, is done work all the way into steam turbine, finishes the steam of work(by the steam discharge of high pressure cylinder 7 to reheater；Another way is by leading
Steam by-pass 2 is directly entered reheater after converging by the steam after pressure and temperature reducing and high row's steam.And the steaming that reheater comes out
Suitable position is chosen on pipeline before vapour to middle pitch carry out punching and draw gas, the steam come by height is all taken away, drawn gas
Safety valve, non-return valve, quick closing valve regulating valve, electric check valve etc. are installed on pipeline additional successively, to realize that external heat supply is drawn gas.And it is guarantor
The carbonated drink balance of electric power station system is held, backwater enters oxygen-eliminating device.
The phase that the bid mode merchandised according to government to peak regulation assistant service guarantee, depth peak regulation and price mechanism etc. are made
Regulation is closed, participating in peak regulation assistant service transaction does not influence the execution of power plant's annual electricity generation plan.The transaction of real-time deep peak regulation uses
" staged " bid mode, electricity power enterprise are divided to two grades of quotations of floating in different times, and specific stepping and quotation upper and lower limit refer to down
Table：
Thermal power plant obtain reimbursement for expenses calculation be：Thermal power plant's peak regulation amount of compensation=∑ (i-th grade of paid peak regulation electricity
× the i-th grade of amount actually goes out clear electricity price).
2 × 350MW Subcritical Units are used in the present embodiment, the peak regulation target of design is 30%, according to upper one year
Actual operating data, heating just, latter stage (November, March), unit participates in depth peak regulation 729 hours；In heating mid-term (12
Month, January, 2 months), unit participates in peak regulation 1268 hours, 152 days altogether, average daily 13 hours.It is contemplated that peak regulation depth
And peak regulation share, it is contemplated that the daily peak regulation time was at 7 hours or so.So heat first, latter stage (November, March), unit participates in
Depth peak regulation 400 hours；In heating mid-term (December, January, 2 months), two-shipper participates in depth peak regulation 600 hours, is adjusted with this to calculate
Peak income.
(1) in the recent period under the conditions of Heating Load
According to recent Heating Load demand, in first, latter stage (November, March) of heating, 1 unit operation.Now, it is single
Platform unit commitment reheating is drawn gas and mesolow conduit draws gas, and put into operation grill pan furnace system, is ensureing the bar of maximum space heating load
Peak regulation is participated under part, by unit operation 2 months, duplex running 3 months, unit operation unit participates in on-load 14 during depth peak regulation
Ten thousand kilowatts (40% loads), it is ten thousand kilowatts of 14-5=9 to reduce after contributing, and unit Peak Load is 25%；Duplex running unit band
280,000 kilowatts of load, reduces ten thousand kilowatts of 28-5=23 after output, and two-shipper Peak Load is 32%.First grade of compensation, 0.4 yuan/kWh,
Second gear compensates 1 yuan/kWh and calculated.
400 hours unit operation income hours：
First grade of compensation：Ten thousand yuan of (17.5-14) * 400*0.4=560
Second gear compensates：Ten thousand yuan of (14-9) * 400*1=2000
600 hours duplex running income hours：
First grade of compensation：Ten thousand yuan of (35-28) * 600*0.4=1680
Second gear compensates：Ten thousand yuan of (28-23) * 600*1.00=3000
Year peak regulation income adds up to：Ten thousand yuan of 560+2000+1680+3000=7240
Ten thousand yuan of electric boiler heat supply increase cost of electricity-generating 0.155*1000*5=775 (choose generating unit in 2016 change into
This)
Annual earnings add up to：Ten thousand yuan of 7240-775=6465.
(2) under the conditions of Heating Load at a specified future date
Adjusted by Heating Load operating mode at a specified future date, electric load, which reduces to 40% and need to put into main steam line, to draw gas.Now,
5 monthly duplex runnings, unit participate in 280,000 kilowatts of on-load (40% load) during depth peak regulation, reduce 28-5=23 after output
Ten thousand kilowatts, two-shipper Peak Load is 32%.First grade of compensation, 0.4 yuan/kWh, second gear compensate 1 yuan/kWh and calculated.
1000 hours duplex running income hours：
First grade of compensation：Ten thousand yuan of (35-28) * 1000*0.4=2800
Second gear compensates：Ten thousand yuan of (28-23) * 1000*1.00=5000
Year peak regulation income adds up to：Ten thousand yuan of 2800+5000=7800
Because main steam line extracts 80 tons out, steam turbine acting is not entered into, more 8 tons of left sides of consumption mark coal per hour during duplex running
The right side, it is ten thousand yuan of 8*660*1000=528 by increase coal-fired cost by the 660 yuan/ton of calculating of existing mark coal unit price.
Annual earnings add up to：Ten thousand yuan of 7800-775-528=6497.
Above-mentioned result of calculation shows, under the conditions of recent Heating Load and under the conditions of Heating Load at a specified future date, this implementation
Technical scheme in example is respectively provided with considerable economic well-being of workers and staff.The present embodiment takes full advantage of heat supply spike period and power network underload
Period coincides, and winter, steam power plant was the characteristics of heat supply load must generate electricity greatly, and wind-powered electricity generation yields generating, both can guarantee that heat supply
Base load, and can ensure depth peak regulation.Practical operation needs are not only more conformed to, while save the energy, are reduced environmental pollution,
Heat cost is reduced, is more simplified than other reforming modes quick.System architecture and operating process of the present utility model are simple
It is convenient, it is easy to accomplish, heating efficiency is high, the environmental protection again of economic, energy-conservation.
Embodiment 2
Embodiment 2 is similar to Example 1, except that, the electric heat storage system in the present embodiment uses electrode boiler, institute
State in motor boiler, the electrode for connecting high voltage power supply is directly immersed in the stove water of boiler and heated.Stove water and boiler casing
By the way of being dielectrically separated from, avoid Boiler Metallic cylinder powered.Or preferred injecting type electrode boiler, stove water is directly sprayed
Heated, rather than be directly immersed in stove water on to electrode.
Electrode boiler or the injecting type electrode boiler is connected with accumulation of heat water pot by pipeline, electrode boiler or injecting type electricity
Pole boiler is heated using trough-electricity to heat transfer medium water, is pipelined in accumulation of heat water pot and is carried out accumulation of heat, works as electricity consumption
Peak period, accumulation of heat water pot are 12 hot-water supplies of heat supply initial station by heating water supply line 20, to alleviate power network power supply pressure, are reached
To the purpose of peak regulation.
Embodiment 3
Embodiment 3 is similar to Example 1, except that, the electric heat storage system in the present embodiment uses fuse salt accumulation of heat
Device, mainly using fused salt as heat transfer heat storage medium, because fused salt thermal capacity is big, adaptive temperature scope is wide, viscosity is low, relative
Density is big, passes through the storage or release that rise or fall can and realize heat energy of temperature of molten salt during heat transfer.
When under underload, fused salt electric heater starts, will be by low-temperature molten salt pump from cold using unstable electric energy or trough-electricity
The low-temperature molten salt that salt cellar is extracted out is heated to high temperature, then the fused salt of high temperature is stored in hot salt cellar, this process realizes electric energy
To hot transformation of energy.When needing electricity consumption or peak times of power consumption, the fused salt pump startup of hot salt tank top is constantly defeated by high-temperature molten salt
Be sent in brine heat exchanger i.e. steam generator to heat water and produce Steam Actuation steam turbine and generate electricity, this process realize heat energy to
Electric transformation of energy, and then continuous heat release is changed into low-temperature molten salt and returned in cold salt cellar high-temperature molten salt, completes one cycle.
Although the utility model, those skilled in the art has shown and described referring particularly to its preferred embodiment
It is appreciated that the various changes that can be made in form and details are new without departing from this practicality described in appended claims
The scope of type.It is described in detail above in association with specific embodiment of the utility model, but is not to limit of the present utility model
System.Every foundation the technical essence of the utility model still falls within this practicality to any simple modification made for any of the above embodiments
The scope of new technique scheme.
Claims (14)
1. the system that a kind of high other transformation of boiler combines electric accumulation of heat lifting peak load regulation flexibility, including the high other desuperheat of main steam subtract
Depressor system, heat again steam temperature reducing and pressure reducing device system, heat again steam to low pressure (LP) cylinder temperature-decreased pressure reducer system, electric heat storage system, adopt
Warm air supply system, condenser（16）, generator（18）, 220kv buses in factory（19）, it is characterised in that：The main steam is high other
Temperature-decreased pressure reducer system includes main steam line（1）Bypassed with main steam（2）, the main steam bypass（2）High other desuperheat is set
Pressure reducer（3）；Steam temperature reducing and pressure reducing device system includes heat jet chimney again to the heat again（5）With hot steam by-pass again（6）, it is described
Hot steam by-pass again（6）The hot temperature-decreased pressure reducer that draws gas again is set（11）；The heat again steam to low pressure (LP) cylinder temperature-decreased pressure reducer system
Including a lateral A（17）, the lateral A（17）It is upper that heat is set again to low pressure (LP) cylinder temperature-decreased pressure reducer（15）.
2. the system that the high other transformation of boiler according to claim 1 combines electric accumulation of heat lifting peak load regulation flexibility, it is special
Sign is：The main steam line（1）One end connects boiler, other end connection high pressure cylinder（7）, in main steam line（1）On set
Put electrically operated gate before bypass opening A and main steam pitch（10）.
3. the system that the high other transformation of boiler according to claim 2 combines electric accumulation of heat lifting peak load regulation flexibility, it is special
Sign is：Electrically operated gate before the main steam pitch（10）Positioned at the bypass opening A and high pressure cylinder（7）Between, it is arranged at steamer
Before the high row's non-return flap of machine.
4. the system that the high other transformation of boiler according to claim 1 combines electric accumulation of heat lifting peak load regulation flexibility, it is special
Sign is：The main steam bypass（2）One end connects main steam line（1）, the cold jet chimney again of other end connection（4）.
5. the system that the high other transformation of boiler according to claim 1 combines electric accumulation of heat lifting peak load regulation flexibility, it is special
Sign is：The hot jet chimney again（5）One end connects boiler reheater, other end connection intermediate pressure cylinder（8）, in hot steam pipe again
Road（5）Upper setting bypass opening B and electrically operated gate before hot pitch again（9）.
6. the system that the high other transformation of boiler according to claim 5 combines electric accumulation of heat lifting peak load regulation flexibility, it is special
Sign is：Electrically operated gate before the hot pitch again（9）Positioned at bypass opening B and intermediate pressure cylinder（8）Between.
7. the system that the high other transformation of boiler according to claim 1 combines electric accumulation of heat lifting peak load regulation flexibility, it is special
Sign is：The hot steam by-pass again（6）Upper setting bypass opening C, the heat are drawn gas temperature-decreased pressure reducer again（11）Positioned at bypass
The hot steam by-pass again of open C front end（6）On, hot steam by-pass again（6）Pipe end and heat supply initial station（12）Connection.
8. the system that the high other transformation of boiler according to claim 7 combines electric accumulation of heat lifting peak load regulation flexibility, it is special
Sign is：By bypass opening C connection laterals A（17）, the lateral A（17）Upper setting electric adjustable section door（14）,
The electric adjustable section door（14）Positioned at bypass opening C and heat again to low pressure (LP) cylinder temperature-decreased pressure reducer（15）Between.
9. the system that the high other transformation of boiler according to claim 8 combines electric accumulation of heat lifting peak load regulation flexibility, it is special
Sign is：The lateral A（17）End connects condenser（16）.
10. the system that the high other transformation of boiler according to claim 9 combines electric accumulation of heat lifting peak load regulation flexibility, it is special
Sign is：The condenser（16）With low pressure (LP) cylinder（13）Connection, the low pressure (LP) cylinder（13）With intermediate pressure cylinder（8）Between set steam it is defeated
Send pipeline.
11. the system that the high other transformation of boiler according to claim 1 combines electric accumulation of heat lifting peak load regulation flexibility, it is special
Sign is：The generator（18）After electrically connect step-up transformer, between step-up transformer and power network the energy metering device
Branched line is set, and the branched line is connected by step-down transformer with electric heat storage system.
12. the system that the high other transformation of boiler according to claim 11 combines electric accumulation of heat lifting peak load regulation flexibility, its
It is characterised by：The electric heat storage system includes solid electric heat-storage device, electrode boiler, injecting type electrode boiler, fuse salt accumulation of heat
At least one of device, heat accumulation water pot.
13. the system that the high other transformation of boiler according to claim 1 combines electric accumulation of heat lifting peak load regulation flexibility, it is special
Sign is：The heating air supply system includes heat supply initial station（12）And heat supply pipeline, the heat supply initial station（12）Supplied by heating
Waterpipe（20）With heating water return pipeline（21）It is connected with electric heat storage system.
14. the high other transformation of boiler according to claim 1 ~ 13 any one combines electric accumulation of heat lifting peak load regulation flexibility
System, it is characterised in that：The main steam line（1）, main steam bypass（2）, cold jet chimney again（4）, heat steam pipe again
Road（5）, heat steam by-pass again（6）, lateral A（17）In working medium be gas.
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| CN108534113A (en) * | 2018-04-28 | 2018-09-14 | 赫普科技发展（北京）有限公司 | A kind of load side electric heat storage boiler frequency modulation system and method |
| CN108548168A (en) * | 2018-03-20 | 2018-09-18 | 北京工业大学 | A kind of thermal power plant's fused salt accumulation of heat peak regulation system heated using main steam |
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| CN110415139B (en) * | 2019-06-21 | 2022-04-12 | 国网能源研究院有限公司 | Heat storage capacity configuration method considering peak shaving cost for thermal power generating unit containing heat storage |
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