CN206656340U - The depth peak regulation system that electrode boiler combines with condensate heating - Google Patents

The depth peak regulation system that electrode boiler combines with condensate heating Download PDF

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Publication number
CN206656340U
CN206656340U CN201720246876.3U CN201720246876U CN206656340U CN 206656340 U CN206656340 U CN 206656340U CN 201720246876 U CN201720246876 U CN 201720246876U CN 206656340 U CN206656340 U CN 206656340U
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China
Prior art keywords
condensate
electrode boiler
heating
electrode
boiler
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Inventor
杨豫森
程荣新
崔华
谭智
陈辉
展望
陈超
朱明志
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Beijing HEMPEL Electric Power Technology Co., Ltd.
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Hempel Thermal Development Ltd
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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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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

Abstract

The utility model provides the depth peak regulation system that a kind of electrode boiler combines with condensate heating, including main electrical scheme system, electrode boiler system, condensation water heating system, heat supply network circulation, electrode boiler system increases an interval newly on power plant's outlet bus, it is 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；Condensation water heating system sets condensate electric heating heat exchanger, is connected with electrode boiler boiler secondary circulating water line, condensate is heated.Combined by electrode boiler and condensation water heating system, abandoned using wind-powered electricity generation, photoelectricity or peak-valley electric energy is converted into energy heats condensate, it can realize that non-heat supply season participates in peak load regulation network, boiler feed temperature, which can not only be improved, reduces boiler coal consumption, while can be with the annual peak regulation resource that preciousness is provided for power network.

Description

The depth peak regulation system that electrode boiler combines with condensate heating
Technical field
Power peak regulation field is the utility model is related to, more particularly to thermal power generation unit is added using electrode boiler with condensate Thermal participates in annual depth peak regulation.
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 condensate heating of thermal power generation unit is generally heated by several low-pressure heaters, and thermal source comes from low pressure The at different levels of cylinder are drawn gas, and the regenerative steam heating system of condensate is referred to as in power plant.The purpose of the back heating system of condensate is The temperature that condensate enters oxygen-eliminating device is improved, and then improves the feed temperature for eventually entering into boiler, so as to reduce boiler coal consumption, is carried Rise power plant cycle efficiency.
Application No. CN201620467058.1 Chinese patent, disclose a kind of accumulation of heat for thermal power plant's peak regulation accumulation of heat System, including：Boiler, steam turbine, heat supply pipeline, regenerative apparatus and heat user, regenerative apparatus are connected with heat supply pipeline, accumulation of heat dress Direct regenerative apparatus or indirect regenerative apparatus are set to, the heat storage medium of the regenerative apparatus is that water, steam, conduction oil or phase transformation store Hot material, the heat user are industrial user or resident heating user.The patent can realize that cogeneration units thermoelectricity decouples With winter peaking demand of power grid, but peak regulation service can not be realized because do not have 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 heats with condensate With reference to depth peak regulation system, including main electrical scheme system, electrode boiler system, condensation water heating system, heat supply network circulation, Electrode boiler system on power plant's outlet bus increase newly one interval, be connected with step-down transformer, the step-down transformer other end and Electrode boiler power supply buses are connected, and one or more electrode boilers are connected on electric accumulation of heat bus；Set on heat supply network supply channel Lateral is put with electrode boiler to be connected；Condensation water heating system sets condensate electric heating heat exchanger, with electrode boiler boiler Secondary cycle water lines are connected, and condensate is heated.Condensation water heating system is connected with electrode boiler, passes through electrode pot Stove and condensation water heating system combine, and are abandoned using wind-powered electricity generation, photoelectricity or peak-valley electric energy, utilize electrode boiler heat-setting Water, it is possible to achieve particularly spring in non-heat supply season and high wind season in autumn participate in peak load regulation network, can not only pass through heat-setting Water reduces boiler coal consumption, 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 condensate heating and energy supply, and this advantage solves asking for annual peak regulation and wind-powered electricity generation low ebb consumption simultaneously Topic.
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 Condensate is heated into condensate electric heating heat exchanger by electrode boiler secondary cycle water lines, and through electrode boiler Electrical secondary system water circulating pump is back to electrode boiler.
Any of the above-described scheme is preferably, and the condensation water heating system includes condenser, triple valve, condensate electrical heating Inlet pipeline, condensate electrical heating outlet pipeline condensate electric heating heat exchanger, low-pressure heater.
Any of the above-described scheme is preferably, and the condensate of condenser outflow enters condensate electrical heating by switching three-way valve Inlet pipeline, after being sent to the heating of condensate electric heating heat exchanger, into condensate electrical heating outlet pipeline, finally enter deoxygenation Device.
Any of the above-described scheme is preferably, when condensate is heated into electrode boiler system, all original condensations Backheat low-pressure heater on grid, which is all cut, to stop；When condensate is introduced into electrode boiler system, condensate passes through threeway Valve enters low-pressure heater, and condensate is heated by the heat of low pressure backheat 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 condensation water heating system, is abandoned using wind-powered electricity generation, photovoltaic or peak valley Electricity, using electrode boiler heat-setting water, can improve boiler feed temperature reduces boiler coal consumption, and and can meets the depth of power network Spend peak regulation.Condensate after the heating of electrode boiler system enters oxygen-eliminating device, original low adding system and the excision of regenerative steam system, So as on the one hand reduce the amount of drawing gas increase generated energy, while condensing water 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 are：
1）The utility model combines the characteristics of electric heat storage boiler and condensate heating, solves the efficient of electric energy and heat energy Conversion and the application problem in non-heat supply season, can neatly realize the peak regulation of power plant service in non-heat supply season.
2）By being heated to condensate system, boiler feed temperature can be then improved, so as to improve the effect of whole unit Rate, while improve the heat-economy of unit.
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 according to the one preferred of electrode boiler of the present utility model and the depth peak regulation system of condensate heating combination The schematic diagram of embodiment.
Fig. 2 is the electrode boiler that the depth peak regulation system combined is heated according to electrode boiler of the present utility model and condensate The schematic diagram of one preferred embodiment.
Illustrate：
1. step-down transformer；2. electric accumulation of heat bus；3. electrode boiler；4. condenser；5. triple valve；6. condensate electrical heating Inlet pipeline；7. condensate electrical heating outlet pipeline；8. condensate electric heating heat exchanger；9. electrode boiler electrical secondary system recirculated water Pump；10. low-pressure heater；11. the second generator；12. the first generator；13. the first outlet；14. the second outlet；15. power plant Outlet bus；16. oxygen-eliminating device；17. electrode boiler system；18. main electrical scheme system；19. heat supply network supply channel；20. heat supply network supplies water Pipeline；21. pumps for hot water supply net；22. electrode boiler plate type heat exchanger；23. electrode boiler secondary cycle water lines；24. high-tension electricity Pole；25. protect shield.
Embodiment
In order to be further understood that content of the present utility model, the utility model is made more below in conjunction with specific embodiment For detailed description, embodiment only has exemplary effect to the utility model, without the effect of any restrictions；It is any The insubstantial modifications that those skilled in the art make on the basis of the utility model, it should all belong to the utility model protection Scope.
Embodiment 1
As shown in figure 1, the depth peak regulation system that a kind of electrode boiler combines with condensate heating, including main electrical scheme system 18th, electrode boiler system 17, condensation water heating system, heat supply network circulation, electrode boiler system 17 is in power plant's outlet bus Increasing an interval on 15 newly, be connected with step-down transformer 1, the other end of step-down transformer 1 is connected with the power supply buses of electrode boiler 3, One or more electrode boilers 3 are connected on electric accumulation of heat bus 2；Lateral and electrode pot are set on heat supply network supply channel 19 Stove 3 is connected；Condensation water heating system sets condensate electric heating heat exchanger 8, with the secondary cycle water lines phase of electrode boiler boiler 3 Even, condensate is heated.Condensation water heating system is connected with electrode boiler, passes through electrode boiler and condensate heating system System combines, and is abandoned using wind-powered electricity generation, photoelectricity or peak-valley electric energy, utilizes electrode boiler heat-setting water, it is possible to achieve non-heat supply Particularly spring in season and high wind season in autumn participate in peak load regulation network, not only can reduce boiler coal consumption by heat-setting water, together When valuable peak regulation resource can be provided for power network with annual.
In the present embodiment, the electrode boiler is discharged by three-phase high-voltage electrode in electrolyte aqueous solution, will be electrolysed For the matter aqueous solution as big resistance heating, the aqueous solution for reaching certain temperature exchanges heat heat to electrode boiler by plate type heat exchanger Secondary water circulation system, carries out condensate 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 electrode boiler 3 is according to the supporting setting GIS switchgears of actual requirement of engineering or bus-tie circuit breaker Equipment.
In the present embodiment, as shown in Fig. 2 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 system uses electrode water boiler.The electrode boiler body includes Heat-insulation layer and boiler furnace, the heat-insulation layer wrap up boiler furnace.The boiler furnace includes Inlet and outlet water insulation tube, high-field electrode 24th, electrode porcelain bushing shell, protection shield 25, protection shield adjusting apparatus, electrolyte aqueous solution and servo control mechanism, the servo control mechanism control Heating power.The protection shield 25 includes mobile protection shield, top and the bottom protection shield.The high-field electrode 24 is three-phase high-voltage Pole.The electrolyte aqueous solution is full of inside boiler furnace.
In the present embodiment, terminal voltage 10 ~ 35kV of rate range of the electrode boiler body, power bracket 3 ~ 90MW, power can in the range of 0% ~ 100% step-less adjustment.According to the selection of electrode boiler body and one cycle power system capacity 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 in pure condensate Realize pressure load to 50% operating mode under operating condition.
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, enter solidifying in non-heat supply season, the heat release of electrode boiler 3, heated electrode boiler secondary cycle water Bear water electric heating heat exchanger 8 to heat condensate, and electrode boiler is back to through electrode boiler electrical secondary system water circulating pump 9 3。
In the present embodiment, the condensation water heating system includes condenser 4, triple valve 5, condensate electrical heating water inlet pipe Road 6, the condensate electric heating heat exchanger 8 of condensate electrical heating outlet pipeline 7, low-pressure heater 10.
In the present embodiment, the condensate that condenser 4 flows out enters condensate electrical heating water inlet pipe by switching three-way valve 5 Road 6, after being sent to the heating of condensate electric heating heat exchanger 8, into condensate electrical heating outlet pipeline 7, finally enter oxygen-eliminating device 16。
In the present embodiment, when condensate is heated into electrode boiler system 17, all original condensate pipe networks On backheat low-pressure heater 10 all cut and stop；When condensate is introduced into electrode boiler system 17, condensate passes through triple valve 5 Into low-pressure heater 10, condensate is heated by the heat of low pressure backheat 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 condensation water heating system, is abandoned using wind-powered electricity generation, photovoltaic or peak valley Electricity, using electrode boiler heat-setting water, can improve boiler feed temperature reduces boiler coal consumption, and and can meets the depth of power network Spend peak regulation.Condensate after the heating of electrode boiler system enters oxygen-eliminating device, original low adding system and the excision of regenerative steam system, So as on the one hand reduce the amount of drawing gas increase generated energy, while condensing water 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 condensate heating, solves the efficient of electric energy and heat energy Conversion and the application problem in non-heat supply season, can neatly realize the peak regulation of power plant service in non-heat supply season.
2）By being heated to condensate system, boiler feed temperature can be then improved, so as to improve the effect of whole unit Rate, while improve the heat-economy of unit.
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 depth peak regulation system mechanism phase that the present embodiment combines with the electrode boiler described in embodiment 1 and condensate heating Together, except that, one therein or several electric pole type hot-water boilers is substituted for solid electricity heat storage boiler, form liquid-type With solid type electricity accumulation of heat hybrid system, finally condensate is heated using two kinds of electric boilers.The system includes electric pole type heat Homogeneous solution-type reactor, solid electricity heat storage boiler and its connection power network, 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 condensate heating, including main electrical scheme system（18）, electrode boiler System（17）, condensation water heating system, heat supply network circulation, it is characterised in that：Electrode boiler system（17）In power plant's outlet Bus（15）A upper newly-increased interval, with step-down transformer（1）Connection, step-down transformer（1）The other end and electrode boiler（3）For Goddess of lightning's line 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）On set Put lateral and electrode boiler（3）It is connected；Condensation water heating system sets condensate electric heating heat exchanger（8）, with electrode pot Stove boiler（3）Secondary cycle water lines are connected, and condensate is heated.
2. the depth peak regulation system that electrode boiler according to claim 1 combines with condensate heating, it is characterised in that：Institute State 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 condensate heating, it is characterised in that：Institute State electrode boiler（3）6 ~ 35kV of voltage class ranges.
4. the depth peak regulation system that electrode boiler according to claim 2 combines with condensate heating, it is characterised in that：Institute State electrode boiler（3）0 ~ 90MW of power bracket.
5. the depth peak regulation system combined is heated according to the electrode boiler of claim 1 ~ 4 any one and condensate, its It is characterised by：Newly-increased interval, step-down transformer（1）, GIS switchgears, electrode boiler（3）Between used according to actual requirement of engineering Steel-cored aluminium strand or cable connection.
6. the depth peak regulation system that electrode boiler according to claim 1 combines with condensate heating, it is characterised in that：Institute State electrode boiler system（17）Including step-down transformer（1）, electric accumulation of heat bus（2）, electrode boiler（3）, electrode boiler once follows Loop system and secondary circulation system, electrode boiler plate type heat exchanger（22）, electrode boiler electrical secondary system water circulating pump（9）And its even Get access to grid and pipeline.
7. the depth peak regulation system that electrode boiler according to claim 1 combines with condensate heating, it is characterised in that：Institute Stating 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 condensate heating, its feature exist In：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, enter Electrode 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 condensate heating, its feature exist In：In non-heat supply season, electrode boiler（3）Heat release, heated electrode boiler secondary cycle water pass through electrode boiler secondary cycle water Pipeline（23）Into condensate electric heating heat exchanger（8）Condensate is heated, and through electrode boiler electrical secondary system recirculated water Pump（9）It is back to electrode boiler（3）.
10. the depth peak regulation system that electrode boiler according to claim 1 combines with condensate heating, it is characterised in that： The condensation water heating system includes condenser（4）, triple valve（5）, condensate electrical heating inlet pipeline（6）, condense water power add Hot outlet pipeline（7）Condensate electric heating heat exchanger（8）, low-pressure heater（10）.
11. the depth peak regulation system that electrode boiler according to claim 10 combines with condensate heating, it is characterised in that： Condenser（4）The condensate of outflow passes through switching three-way valve（5）Into condensate electrical heating inlet pipeline（6）, it is sent to condensation Water power heating heat exchanger（8）After heating, into condensate electrical heating outlet pipeline（7）, finally enter oxygen-eliminating device（16）.
12. the depth peak regulation system that electrode boiler according to claim 11 combines with condensate heating, it is characterised in that： When condensate enters electrode boiler system（17）When being heated, the online backheat low-pressure heater of all original condensate pipes （10）All cut and stop；When condensate is introduced into electrode boiler system（17）When, condensate passes through triple valve（5）Into low-pressure heating Device（10）, condensate is heated by the heat of low pressure backheat offers at different levels of drawing gas.
13. the depth peak regulation system that electrode boiler according to claim 1 combines with condensate heating, it is characterised in that： The main electrical scheme system includes the first generator（12）, the second generator（11）, transformer, power plant's outlet bus（15）, first Outlet（13）, the second outlet（14）And connection power network.
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