CN206648010U - The depth peak regulation system that electrode boiler combines with feedwater heating - Google Patents
The depth peak regulation system that electrode boiler combines with feedwater heating Download PDFInfo
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- CN206648010U CN206648010U CN201720246875.9U CN201720246875U CN206648010U CN 206648010 U CN206648010 U CN 206648010U CN 201720246875 U CN201720246875 U CN 201720246875U CN 206648010 U CN206648010 U CN 206648010U
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- electrode boiler
- feedwater
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- heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D13/00—Electric heating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
- Y04S20/244—Home appliances the home appliances being or involving heating ventilating and air conditioning [HVAC] units
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model provides the depth peak regulation system that a kind of electrode boiler combines with feedwater heating, including main electrical scheme system, electrode boiler system, feed heating system, heat supply network circulation, in electrode boiler system, an interval is increased newly on power plant's outlet bus to be connected with step-down transformer, the step-down transformer other end is connected with electrode boiler power supply buses, and one or more electrode boilers are connected on electric accumulation of heat bus；Lateral is set to be connected with electrode boiler on heat supply network supply channel；Feed heating system sets feedwater electric heating heat exchanger, is connected with electrode boiler secondary cycle water lines, and feedwater is heated.Feed heating system is connected with electrode boiler, abandoned using wind-powered electricity generation, photoelectricity or peak-valley electric energy, utilize electrode boiler heating feedwater, non-heat supply season peak load regulation network can be achieved, realize that energy cascade utilization reduces station service power consumption rate, can be with the annual peak regulation resource that preciousness is provided for power network.
Description
Technical field
Power peak regulation field is the utility model is related to, more particularly to thermal power generation unit is heated using electrode boiler and feedwater
With reference to the annual depth peak regulation of participation.
Background technology
In recent years, it is rich in China three northern areas of China electricity market capacity, combustion engine, water-storage etc. can peaking power source it is rare,
Particularly thorny between peak load regulation network and fired power generating unit flexibility, the ability of the new energy such as power network consumption wind-powered electricity generation, photoelectricity and nuclear power is not
Foot, wind-abandoning phenomenon are serious.Cogeneration units " electricity determining by heat " mode is run, and peak modulation capacity is only 10% or so.Peak regulation difficulty is
Through as distinct issues the most in operation of power networks.Domestic thermoelectricity flexibility peak regulation transformation is directed to Winter heat supply unit at present,
Summer, how peak regulation was a problem of the pendulum in face of numerous thermal power plants.In order to meet that peaking demand of power grid, and power plant are swashing
Living necessities in strong competition, depth peak regulation are imperative.
The feedwater heating of thermal power generation unit is generally heated by several high-pressure heaters, and thermal source comes from high pressure
The at different levels of cylinder are drawn gas, and the regenerative steam heating system of feedwater is referred to as in power plant.The purpose of the back heating system of feedwater is to improve
Feedwater eventually enters into the feed temperature of boiler, so as to reduce boiler coal consumption, lifts power plant cycle efficiency.
Application No. CN201610609125.3 Chinese patent, disclose associated with a kind of electric heat pump and regenerative apparatus
Thermoelectricity unit and its peak regulating method.The basic constitution element of unit is steam turbine, electric heat pump and regenerative apparatus, can be used for power network
Peak regulation.It is combined by electric heat pump and regenerative apparatus, is required to carry out accumulation of heat pattern and heat release mould according to the power generation dispatching of steam power plant
Formula switches, and realizes the purpose for ensureing the online generated energy that heat supply changes steam power plant simultaneously；Pass through the steaming of condenser and electric heat pump
Device recovery exhaust steam heat is sent out, reduces the heat cost of steam power plant.The patent can realize the decoupling of cogeneration units thermoelectricity and winter
Season peaking demand of power grid, but can not realize peak regulation service because there is no heat supply in summer.
Utility model content
The utility model integrates thermoelectricity thermal power plant unit operational flexibility technology and electric boiler heating technique, realizes non-heat supply season
Electric boiler peak regulating function, be obviously improved the online peak modulation capacity in the non-heat supply season of thermoelectricity unit, both can effectively alleviate renewable
Energy consumption predicament, there is wide market development space again.
Technical scheme is used by the utility model solves aforementioned technical problem：A kind of electrode boiler and feedwater heating knot
The depth peak regulation system of conjunction, including main electrical scheme system, electrode boiler system, feed heating system, heat supply network circulation, electrode
In steam generator system, a newly-increased interval is connected with step-down transformer on power plant's outlet bus, the step-down transformer other end and electricity
Pole boiler power supply buses connection, one or more electrode boilers are connected on electric accumulation of heat bus；Set on heat supply network supply channel
Lateral is connected with electrode boiler；Feed heating system sets feedwater electric heating heat exchanger, with electrode boiler secondary cycle water
Pipeline is connected, and feedwater is heated.Feed heating system is connected with electrode boiler, abandoned using wind-powered electricity generation, photoelectricity or peak valley
Electricity, heated and fed water using electrode boiler, it is possible to achieve particularly spring in non-heat supply season and high wind season in autumn participate in power network and adjusted
Peak, not only boiler coal consumption can be reduced by heating to feed water, while can be with the annual peak regulation resource that preciousness is provided for power network.
Preferably, the electrode boiler is discharged by three-phase high-voltage electrode in electrolyte aqueous solution, by electrolyte water
Solution as big resistance heating, reach certain temperature the aqueous solution heat is exchanged heat by plate type heat exchanger it is secondary to electrode boiler
Water circulation system, carries out feed water heating and energy supply, and this advantage solves the problems, such as annual peak regulation and wind-powered electricity generation low ebb consumption simultaneously.
Any of the above-described scheme is preferably, the electrode boiler according to the supporting setting GIS switchgears of actual requirement of engineering or
Bus switchgear.
Any of the above-described scheme is preferably, the electrode boiler system include high-field electrode wiring, electrode boiler body and
One cycle system, plate type heat exchanger, secondary circulation system, water circulating pump, temperature control system and its connecting pipe and power network.
Any of the above-described scheme is preferably, and the electrode boiler can be electrode water boiler or electrode steam copper
Stove.
Any of the above-described scheme is preferably, and the electrode boiler body includes heat-insulation layer and boiler furnace, the insulation
Layer parcel boiler furnace.
Any of the above-described scheme is preferably, and the boiler furnace includes Inlet and outlet water insulation tube, high-field electrode, electrode insulator
Pipe, protection shield, protection shield adjusting apparatus, electrolyte aqueous solution and servo control mechanism, the servo control mechanism control heating power.
Any of the above-described scheme is preferably, and the high-field electrode includes three-phase high-voltage electrode.
Any of the above-described scheme is preferably, and the protection shield includes mobile protection shield, top and the bottom protection shield.
Any of the above-described scheme is preferably, and the electrolyte aqueous solution is full of inside boiler furnace.
Any of the above-described scheme is preferably, terminal voltage 6 ~ 35kV of rate range of the electrode boiler body, work(
Rate 0 ~ 90MW of scope, power can in the range of 0% ~ 100% step-less adjustment.According to electrode boiler body and one cycle power system capacity
Selection can realize steam power plant in the case where not shutting down the operating mode of not blowing out 0 to 50% load operation, now need unit in itself
Realize pressure load to 50% operating mode under pure condensate operating condition.
Any of the above-described scheme is preferably, and is increased newly between interval, step-down transformer, GIS switchgears, electrode boiler according to reality
Border requirement of engineering uses steel-cored aluminium strand or cable connection.
Any of the above-described scheme is preferably, and the electrode boiler system includes step-down transformer, electric accumulation of heat bus, electrode pot
Stove, electrode boiler one cycle system and secondary circulation system, electrode boiler plate type heat exchanger, the circulation of electrode boiler electrical secondary system
Water pump and its connection power network and pipeline.
Any of the above-described scheme is preferably, the heat supply network circulation include heat supply network supply channel, heat supply network water return pipeline,
Pumps for hot water supply net.
Any of the above-described scheme is preferably, in the winter time heat supply season, is passed through by the water of heat user end heat supply network water return pipeline backflow
Pumps for hot water supply net is pressurized, and is heated into electrode boiler plate type heat exchanger, and heat user is supplied by heat supply network supply channel.
Any of the above-described scheme is preferably, in non-heat supply season, electrode boiler heat release, and heated electrode boiler secondary cycle water
Enter feedwater electric heating heat exchanger by electrode boiler secondary cycle water lines to heat feedwater, but it is secondary through electrode boiler
System circulation water pump is back to electrode boiler.
Any of the above-described scheme is preferably, and the feed heating system includes oxygen-eliminating device, triple valve, feedwater electrical heating water inlet
Pipeline, feedwater electrical heating outlet pipeline, feedwater electric heating heat exchanger, high-pressure heater, station boiler.
Any of the above-described scheme is preferably, and is fed water after oxygen-eliminating device deoxygenation, is entered by switching three-way valve and added to water power
Hot inlet pipeline, after being sent to feedwater electric heating heat exchanger heating, into feedwater electrical heating outlet pipeline, finally enter power station pot
Stove.
Any of the above-described scheme is preferably, when feedwater is heated into electrode boiler system, all original feed pipes
Online backheat high-pressure heater, which is all cut, to stop；When feedwater is introduced into electrode boiler system, feedwater is entered high by triple valve
Heater is pressed, feedwater is heated by the heat of high-pressure extraction offers at different levels of drawing gas.
Any of the above-described scheme is preferably, the main electrical scheme system include the first generator, the second generator, transformer,
Power plant's outlet bus, the first outlet, the second outlet and connection power network.
The utility model combines electrode boiler and feed heating system, is abandoned using wind-powered electricity generation, photovoltaic or peak-trough electricity
Amount, heated and fed water using electrode boiler, can improve boiler feed temperature reduces boiler coal consumption, and and can meets that the depth of power network is adjusted
Peak.Feedwater after the heating of electrode boiler system enters station boiler, original high adding system and the excision of regenerative steam system, so as to
On the one hand the amount of drawing gas increase generated energy is reduced, while feed temperature lifting can effectively reduce boiler coal consumption.
In the utility model, electrode boiler also can be replaced solid heat storage electric boiler, form solid type electric heat storage system, liquid
The hybrid system of body formula electrode directly-heated hot-water boiler.Liquid-type electrode boiler system includes one or more electrode boilers and its company
Get access to grid, solid type electric heat storage system refer to using solid type electric heat-storage device carry out depth peak regulation equipment and system, mainly with
Solid heat storage electric boiler is capital equipment, and the storage of heat energy is carried out using solid as heat storage.Liquid-type electrode directly-heated water bath
Furnace system includes one or more liquid-type electrode boilers and its connection power network, and liquid-type electrode boiler system is mainly with electric pole type
Hot-water boiler is capital equipment, and electric energy and heat energy conversion are carried out using water as heated working medium.Liquid-type and solid type electricity accumulation of heat
Hybrid system includes liquid-type electrode boiler, solid type electricity heat storage boiler and its connection power network, the system using electrode boiler and
The system that solid electricity heat storage boiler is combined carries out depth peak regulation, and the nucleus equipment of this system is electric pole type hot-water boiler and solid
Formula electricity heat storage boiler.The advantages of this system has mainly considered two kinds of electric boilers each, electrode boiler voltage change is smooth, right
The characteristics of power network impact is small, and solid electricity heat storage boiler heat storage capacity is big, and floor space is small.The beneficial effects of the utility model
It is：
1）The utility model combines the characteristics of electric heat storage boiler and feedwater heating, solves electric energy and the efficient of heat energy turns
The application problem with non-heat supply season is changed, can neatly realize the peak regulation of power plant service in non-heat supply season.
2）By being heated to water supply system, boiler feed temperature can be then improved, so as to improve the efficiency of whole unit,
The heat-economy of unit is improved simultaneously.
3）It is annual to greatest extent neatly to provide online space for new energy, effectively alleviate the non-confession of regenerative resource
The consumption predicament in hot season.
Brief description of the drawings
Fig. 1 is that heat the depth peak regulation system combined according to electrode boiler of the present utility model and feedwater one is preferred real
Apply the schematic diagram of example.
Fig. 2 is the electrode boiler for heating the depth peak regulation system combined with feedwater according to electrode boiler of the present utility model
The schematic diagram of one preferred embodiment.
Illustrate：
1. step-down transformer；2. electric accumulation of heat bus；3. electrode boiler；4. oxygen-eliminating device；5. triple valve；6. feedwater electrical heating is entered
Water lines；7. feed water electrical heating outlet pipeline；8. feed water electric heating heat exchanger；9. electrode boiler electrical secondary system water circulating pump；10.
High-pressure heater；11. the second generator；12. the first generator；13. the first outlet；14. the second outlet；15. power plant's outlet is female
Line；16. station boiler；17. electrode boiler system；18. main electrical scheme system；19. heat supply network supply channel；20. heat supply network supply channel；
21. pumps for hot water supply net；22. electrode boiler plate type heat exchanger；23. electrode boiler secondary cycle water system；24. high-field electrode；25.
Protect shield.
Embodiment
In order to be further understood that utility model content of the present utility model, below in conjunction with specific embodiment to this practicality
New to be described in more detail, embodiment only has exemplary effect to the utility model, without any restrictions
Effect；The insubstantial modifications that any those skilled in the art make on the basis of the utility model, it should all belong to this practicality
Novel protected scope.
Embodiment 1
As shown in figure 1, the depth peak regulation system that a kind of electrode boiler combines with feedwater heating, including main electrical scheme system 18,
Electrode boiler system 17, feed heating system, heat supply network circulation, in electrode boiler system 17, in power plant's outlet bus 15
A upper newly-increased interval is connected with step-down transformer 1, and the other end of step-down transformer 1 is connected with the power supply buses of electrode boiler 3, one
Or multiple electrodes boiler 3 is connected on electric accumulation of heat bus 2；Lateral and electrode boiler 3 are set on heat supply network supply channel 19
It is connected；Feed heating system set feedwater electric heating heat exchanger 8, be connected with the secondary cycle water lines of electrode boiler 3, to feed water into
Row heating.Feed heating system is connected with electrode boiler, abandoned using wind-powered electricity generation, photoelectricity or peak-valley electric energy, utilizes electrode boiler
Heating feedwater, it is possible to achieve particularly spring in non-heat supply season and high wind season in autumn participate in peak load regulation network, not only can be by adding
Heat feedwater reduces boiler coal consumption, while can be with the annual peak regulation resource that preciousness is provided for power network.
In the present embodiment, preferable electrode boiler is discharged by three-phase high-voltage electrode in electrolyte aqueous solution, by electricity
The matter aqueous solution is solved as big resistance heating, heat is exchanged heat and gives electrode pot by the aqueous solution for reaching certain temperature by plate type heat exchanger
Stove Secondary water circulation system, carries out feed water heating and energy supply, and this advantage solves annual peak regulation and wind-powered electricity generation low ebb consumption simultaneously
The problem of.
In the present embodiment, the supporting setting GIS switchgears of the electrode boiler 3.
In the present embodiment, the electrode boiler system includes high-field electrode wiring, electrode boiler body and one cycle
System, plate type heat exchanger, secondary circulation system, water circulating pump, temperature control system and its connecting pipe and power network.
In the present embodiment, the electrode boiler is electrode water boiler.
In the present embodiment, as shown in Fig. 2 the electrode boiler body includes heat-insulation layer and boiler furnace, the guarantor
Warm layer wraps up boiler furnace.The boiler furnace include Inlet and outlet water insulation tube, high-field electrode 24, electrode porcelain bushing shell, protection shield 25,
Shield adjusting apparatus, electrolyte aqueous solution and servo control mechanism are protected, the servo control mechanism controls heating power.The high-field electrode bag
Include three-phase high-voltage electrode.The protection shield 25 includes mobile protection shield, top and the bottom protection shield.The electrolyte aqueous solution is full of pot
Inside furnace body.
In the present embodiment, the terminal voltage grade 20kV of the electrode boiler body, power 80MW, power can be
Step-less adjustment in the range of 0% ~ 100%.Steam power plant can be realized according to the selection of electrode boiler body and one cycle power system capacity
In the case where not shutting down the operating mode of not blowing out 0 to 50% load operation, now need unit to be realized in itself under pure condensate operating condition
Load is pressed to 50% operating mode.
In the present embodiment, increase newly interval, between step-down transformer 1, GIS switchgears, electrode boiler 3 according to Practical Project
Need to use steel-cored aluminium strand or cable connection.
In the present embodiment, the electrode boiler system 17 include step-down transformer 1, electric accumulation of heat bus 2, electrode boiler 3,
Electrode boiler one cycle system and secondary circulation system, electrode boiler plate type heat exchanger 22, the circulation of electrode boiler electrical secondary system
Water pump 9 and its connection power network and pipeline.
In the present embodiment, the heat supply network circulation includes heat supply network supply channel 19, heat supply network water return pipeline 20, heat supply network
Circulating pump 21.
In the present embodiment, heat supply season, the water to be flowed back by heat user end heat supply network water return pipeline 20 follow by heat supply network in the winter time
Ring pump 21 is pressurized, and is heated into electrode boiler plate type heat exchanger 22, and heat user is supplied by heat supply network supply channel 19.
In the present embodiment, electricity is passed through in non-heat supply season, the heat release of electrode boiler 3, heated electrode boiler secondary cycle water
Pole boiler secondary circulating water line 23 enters feedwater electric heating heat exchanger 8 and feedwater is heated, and through the secondary system of electrode boiler
System water circulating pump 9 is back to electrode boiler 3.
In the present embodiment, the feed heating system include oxygen-eliminating device 4, triple valve 5, feedwater electrical heating inlet pipeline 6,
Feed water electrical heating outlet pipeline 7, feedwater electric heating heat exchanger 8, high-pressure heater 10, station boiler 16.
In the present embodiment, feed water after the deoxygenation of oxygen-eliminating device 4, entering feedwater electrical heating by switching three-way valve 5 intakes
Pipeline 6, after being sent to the feedwater heating of electric heating heat exchanger 8, into feedwater electrical heating outlet pipeline 7, finally enter station boiler
16。
In the present embodiment, when feedwater is heated into electrode boiler system 17, on all original water supply networks
Backheat high-pressure heater 10, which is all cut, to stop；When feedwater is introduced into electrode boiler system 17, feedwater enters high pressure by triple valve 5
Heater 10, feedwater is heated by the heat of high-pressure extraction offers at different levels of drawing gas.
In the present embodiment, the main electrical scheme system includes the first generator 12, the second generator 11, transformer, power plant
Outlet bus 15, the first outlet 13, the second outlet 14 and connection power network.
The utility model combines electrode boiler and feed heating system, is abandoned using wind-powered electricity generation, photovoltaic or peak-trough electricity
Amount, heated and fed water using electrode boiler, can improve boiler feed temperature reduces boiler coal consumption, and and can meets that the depth of power network is adjusted
Peak.Feedwater after the heating of electrode boiler system enters station boiler, original high adding system and the excision of regenerative steam system, so as to
On the one hand the amount of drawing gas increase generated energy is reduced, while feed temperature lifting can effectively reduce boiler coal consumption.
The beneficial effects of the utility model are：
1）The utility model combines the characteristics of electric heat storage boiler and feedwater heating, solves electric energy and the efficient of heat energy turns
The application problem with non-heat supply season is changed, can neatly realize the peak regulation of power plant service in non-heat supply season.
2）By being heated to water supply system, boiler feed temperature can be then improved, so as to improve the efficiency of whole unit,
The heat-economy of unit is improved simultaneously.
3）It is annual to greatest extent neatly to provide online space for new energy, effectively alleviate the non-confession of regenerative resource
The consumption predicament in hot season.
Embodiment 2
The present embodiment is identical with the depth peak regulation system mechanism that feedwater heating combines with the electrode boiler described in embodiment 1,
Except that one therein or several electric pole type hot-water boilers is substituted for into solid electricity heat storage boiler, formed liquid-type and
Solid type electricity accumulation of heat hybrid system, it is final that feedwater is heated using two kinds of electric boilers.The system includes electric pole type water bath
Stove, solid electricity heat storage boiler and its power network wiring system, the system use electric pole type hot-water boiler and solid type electric heat-storage device
The system that is combined carries out depth peak regulation, the advantages of mainly having considered two kinds of electric boilers each, electric pole type electric boiler voltage
Change is smooth, small to power network impact, and solid electricity heat storage boiler heat storage capacity is big, and floor space is small.
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 (13)
1. the depth peak regulation system that a kind of electrode boiler combines with feedwater heating, including main electrical scheme system（18）, electrode boiler system
System（17）, feed heating system, heat supply network circulation, it is characterised in that：Electrode boiler system（17）In, it is female in power plant's outlet
Line（15）A upper newly-increased interval and step-down transformer（1）Connection, step-down transformer（1）The other end and electrode boiler（3）Power supply
Bus connects, one or more electrode boilers（3）It is connected to electric accumulation of heat bus（2）On；In heat supply network supply channel（19）Upper setting
Lateral and electrode boiler（3）It is connected；Feed heating system sets feedwater electric heating heat exchanger（8）, with electrode boiler（3）Two
Secondary circulating water line is connected, and feedwater is heated.
2. the depth peak regulation system that electrode boiler according to claim 1 combines with feedwater heating, it is characterised in that：It is described
Electrode boiler（3）According to the supporting setting GIS switchgears of actual requirement of engineering or bus switchgear.
3. the depth peak regulation system that electrode boiler according to claim 2 combines with feedwater heating, it is characterised in that：It is described
Electrode boiler（3）6 ~ 35kV of voltage class ranges.
4. the depth peak regulation system that electrode boiler according to claim 3 combines with feedwater heating, it is characterised in that：It is described
Electrode boiler（3）0 ~ 90MW of power bracket.
5. heating the depth peak regulation system combined according to the electrode boiler of claim 1 ~ 4 any one and feedwater, it is special
Sign is：Newly-increased interval, step-down transformer（1）, GIS switchgears, electrode boiler（3）Between according to actual requirement of engineering use steel
Core aluminum stranded wire or cable connection.
6. the depth peak regulation system that electrode boiler according to claim 1 combines with feedwater heating, it is characterised in that：It is described
Electrode boiler system（17）Including step-down transformer（1）, electric accumulation of heat bus（2）, electrode boiler（3）, electrode boiler one cycle
System and secondary circulation system, electrode boiler plate type heat exchanger（22）, electrode boiler electrical secondary system water circulating pump（9）And its connection
Power network and pipeline.
7. the depth peak regulation system that electrode boiler according to claim 1 combines with feedwater heating, it is characterised in that：It is described
Heat supply network circulation includes heat supply network supply channel（19）, heat supply network water return pipeline（20）, pumps for hot water supply net（21）.
8. the depth peak regulation system that the electrode boiler according to claim 6 or 7 combines with feedwater heating, it is characterised in that：
Heat supply season in the winter time, by heat user end heat supply network water return pipeline（20）The water of backflow passes through pumps for hot water supply net（21）Supercharging, into electricity
Pole boiler plate type heat exchanger（22）Heating, by heat supply network supply channel（19）Supply heat user.
9. the depth peak regulation system that the electrode boiler according to claim 6 or 7 combines with feedwater heating, it is characterised in that：
In non-heat supply season, electrode boiler（3）Heat release, heated electrode boiler secondary cycle water pass through electrode boiler secondary cycle water lines
（23）Into feedwater electric heating heat exchanger（8）Feedwater is heated, and through electrode boiler electrical secondary system water circulating pump（9）Backflow
To electrode boiler（3）.
10. the depth peak regulation system that electrode boiler according to claim 1 combines with feedwater heating, it is characterised in that：Institute
Stating feed heating system includes oxygen-eliminating device（4）, triple valve（5）, feedwater electrical heating inlet pipeline（6）, feedwater electrical heating outlet pipe
Road（7）, feedwater electric heating heat exchanger（8）, high-pressure heater（10）, station boiler（16）.
11. the depth peak regulation system that electrode boiler according to claim 10 combines with feedwater heating, it is characterised in that：Give
Water passes through oxygen-eliminating device（4）After deoxygenation, pass through switching three-way valve（5）Into feedwater electrical heating inlet pipeline（6）, it is sent to water power
Heating heat exchanger（8）After heating, into feedwater electrical heating outlet pipeline（7）, finally enter station boiler（16）.
12. the depth peak regulation system that electrode boiler according to claim 11 combines with feedwater heating, it is characterised in that：When
Feedwater enters electrode boiler system（17）When being heated, the backheat high-pressure heater on all original water supply networks（10）All
Cut and stop；When feedwater is introduced into electrode boiler system（17）When, feedwater passes through triple valve（5）Into high-pressure heater（10）, by height
The heat for pushing back heat offers at different levels of drawing gas heats to feedwater.
13. the depth peak regulation system that electrode boiler according to claim 1 combines with feedwater heating, it is characterised in that：Institute
Stating main electrical scheme system includes the first generator（12）, the second generator（11）, transformer, power plant's outlet bus（15）, first go out
Line（13）, the second outlet（14）And connection power network.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016111694392 | 2016-12-16 | ||
| CN201611169439 | 2016-12-16 |
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| CN206648010U true CN206648010U (en) | 2017-11-17 |
Family
ID=59598741
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710051543.XA Pending CN107062355A (en) | 2016-12-16 | 2017-01-23 | Electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system |
| CN201720088142.7U Active CN206469330U (en) | 2016-12-16 | 2017-01-23 | Electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system |
| CN201720246876.3U Active CN206656340U (en) | 2016-12-16 | 2017-03-14 | The depth peak regulation system that electrode boiler combines with condensate heating |
| CN201720246875.9U Ceased CN206648010U (en) | 2016-12-16 | 2017-03-14 | The depth peak regulation system that electrode boiler combines with feedwater heating |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710051543.XA Pending CN107062355A (en) | 2016-12-16 | 2017-01-23 | Electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system |
| CN201720088142.7U Active CN206469330U (en) | 2016-12-16 | 2017-01-23 | Electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system |
| CN201720246876.3U Active CN206656340U (en) | 2016-12-16 | 2017-03-14 | The depth peak regulation system that electrode boiler combines with condensate heating |
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| CN (4) | CN107062355A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108050690A (en) * | 2017-12-11 | 2018-05-18 | 山西省工业设备安装集团有限公司 | One kind is used for heat supply initial station residual heat using device |
| CN108131843A (en) * | 2017-11-30 | 2018-06-08 | 赫普科技发展（北京）有限公司 | Peak-frequency regulation system based on distributed electrical accumulation of heat hydrophone |
| CN110112744A (en) * | 2019-06-05 | 2019-08-09 | 大连亨利科技有限公司 | It is a kind of to participate in thermal power plant's depth peak regulation and frequency modulation system using flying wheel battery and electrode boiler joint |
| CN110631259A (en) * | 2019-10-23 | 2019-12-31 | 沈阳汇智源电力工程技术服务有限公司 | Electrode type hot water boiler |
| CN112856363A (en) * | 2021-01-14 | 2021-05-28 | 浙江大学 | System and method for improving heat supply steam parameters of deep peak shaving heat supply unit |
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| CN107062355A (en) * | 2016-12-16 | 2017-08-18 | 赫普热力发展有限公司 | Electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system |
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| CN1093791A (en) * | 1993-04-09 | 1994-10-19 | 东北电业管理局调度通讯局 | Network variable load accumulated electric heating system |
| CN1148869C (en) * | 2000-12-04 | 2004-05-05 | 清华大学 | Method and equipment for regulating peak of electric power |
| AT508746B1 (en) * | 2009-08-21 | 2012-08-15 | Vaillant Group Austria Gmbh | DEVICE FOR COMBINING A ROOF HEATING UNIT WITH A SOLAR SYSTEM |
| US20140238466A1 (en) * | 2013-02-25 | 2014-08-28 | Sean Patrick Toland | Toland's heating system |
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| CN205299702U (en) * | 2016-01-25 | 2016-06-08 | 高朋 | Central heating system provides multiple forms of energy to complement each other |
| CN105863758B (en) * | 2016-05-19 | 2017-09-08 | 华电电力科学研究院 | Heating system and intelligent control method for the double load peak regulations of cogeneration units |
| CN107062355A (en) * | 2016-12-16 | 2017-08-18 | 赫普热力发展有限公司 | Electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system |
-
2017
- 2017-01-23 CN CN201710051543.XA patent/CN107062355A/en active Pending
- 2017-01-23 CN CN201720088142.7U patent/CN206469330U/en active Active
- 2017-03-14 CN CN201720246876.3U patent/CN206656340U/en active Active
- 2017-03-14 CN CN201720246875.9U patent/CN206648010U/en not_active Ceased
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| CN108050690B (en) * | 2017-12-11 | 2018-11-30 | 山西省工业设备安装集团有限公司 | One kind being used for heat supply initial station residual heat using device |
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| CN112856363B (en) * | 2021-01-14 | 2021-10-22 | 浙江大学 | System and method for improving heat supply steam parameters of deep peak shaving heat supply unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN206656340U (en) | 2017-11-21 |
| CN107062355A (en) | 2017-08-18 |
| CN206469330U (en) | 2017-09-05 |
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Effective date of registration: 20180727 Address after: 100176 Beijing Beijing economic and Technological Development Zone, Chuang Chuang thirteen Street 18 building 12, 5 floors 503 rooms. Patentee after: Beijing HEMPEL Electric Power Technology Co., Ltd. Address before: 100176 Beijing Tongzhou District Beijing economic and Technological Development Zone, Chuang Chuang thirteen Street 18 hospital 12 Building 2 floors 201 rooms. Patentee before: HEMPEL thermal development Ltd |
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