CN106839054A - The accumulation of heat peak regulation system that solid heat storage electric boiler and across season natural water are combined - Google Patents

The accumulation of heat peak regulation system that solid heat storage electric boiler and across season natural water are combined Download PDF

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Publication number
CN106839054A
CN106839054A CN201710170901.9A CN201710170901A CN106839054A CN 106839054 A CN106839054 A CN 106839054A CN 201710170901 A CN201710170901 A CN 201710170901A CN 106839054 A CN106839054 A CN 106839054A
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China
Prior art keywords
heat
water
accumulation
electric boiler
peak regulation
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CN201710170901.9A
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崔华
杨豫森
徐波
谭智
陈辉
展望
陈超
朱明志
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Hempel Thermal Development Ltd
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Hempel Thermal Development Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00Central heating systems using heat accumulated in storage masses
    • F24D11/002Central heating systems using heat accumulated in storage masses water heating system
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • F24D19/008Details related to central heating radiators
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/17District heating

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The accumulation of heat peak regulation system that a kind of solid heat storage electric boiler and across season natural water are combined; including power plant's heating system, across season natural water system, solid heat storage grill pan furnace system and heat supply network water circulation system, across the season natural water system includes water collecting sump, accumulation of heat water body, water-locator, water-bed protective layer and water surface insulation coating, rainwater-collecting and drainage system;The solid heat storage grill pan furnace system includes solid heat storage electric boiler and its connection power network and pipeline;Power plant's heating system includes heat exchangers for district heating.The present invention passes through thermoelectricity thermal power plant unit operational flexibility technology and electric boiler district heating technology, and combine across the season natural water accumulation of heat of summer, thermal power plant's depth peak regulation of summer can be realized, so as to be obviously improved the online peak modulation capacity of thermoelectricity unit in summer, both can effectively alleviate regenerative resource to dissolve predicament, the big scale of construction cross-season heat-storage of heating water can be realized again, and future will possess wide market development prospect.

Description

The accumulation of heat peak regulation system that solid heat storage electric boiler and across season natural water are combined
Technical field
The present invention relates to steam power plant's thermoelectricity flexibility peak regulation and cross-season heat-storage field, more particularly to thermal power plant heat supply Unit in summer flexibility depth Peak Shaving.
Background technology
It is rich in Chinese three northern areas of China electricity market capacity, combustion engine, water-storage etc. can peaking power source it is rare, peak load regulation network Particularly thorny between fired power generating unit flexibility, power network is dissolved the scarce capacity of the new energy such as wind-powered electricity generation, photoelectricity and nuclear power, is abandoned wind and is showed As serious.At present, with the implementation that Tohoku Electric Power assistant service is concluded the business, increasing steam power plant passes through thermoelectricity flexibility technology Realize thermoelectricity decoupling and the depth peak regulation in winter.But in summer, due to no heat supply service, either turbine by pass is still electric The thermoelectricity such as boiler are decoupled and peak, cannot all be realized.
Current power plant inside peak regulation relies primarily on boiler load shedding or the heat supply of turbine by pass pressure and temperature reducing, electric boiler in summer Realize that thermal power plant unit thermoelectricity in short term realize by decoupling with the technology such as accumulation of heat water pot heat accumulation, although such technology can reach certain tune Peak is acted on, but is limited in itself by boiler and steam turbine security and technology, and large-scale accumulation of heat water pot storage volume and safety Property limitation, it is impossible to realize the purpose of depth peak regulation, maximum problem be these technologies and electric boiler and accumulation of heat water pot in itself, Summer cannot be run completely, therefore general steam power plant is that cannot carry out depth peak regulation by electric boiler and accumulation of heat water pot in summer , and due to boiler at low load operation, system for desulfuration and denitration can be brought to discharge exceeded, a series of problems, such as boiler flameout.Separately There is prior art to participate in peak regulation, such as China of Application No. 201620107121.0 specially using soil source cold-storage and thermal storage system and device A kind of profit, there is provided soil source cold-storage and thermal storage system and device for the hot peak regulation of steam power plant, including except Conventional thermoelectric factory generates electricity And outside heat supply necessary devices, also including ground heat exchanger, lithium bromide absorption type heat pump unit, closed cooling tower.The existing skill In art, first with the temperature of underground cold reduction cooling-tower circulating water during summer, later-stage utilization cooling-tower circulating water enters to soil Row accumulation of heat;The heat stored using the extraction of lithium bromide absorption type heat pump unit during winter, for concentrated supply of heating in the city provides heat, after Phase carries out cold-storage using closed cooling tower.Though the prior art combines soil source cold-storage and thermal storage and absorption heat pump heat absorption is put Heat, but the regenerative apparatus for being used cannot meet the adjustable actual demand of power bracket, and also it is relatively costly, there is system Heat storage capacity difference and the low problem of peak modulation capacity.For another example the Chinese patent of Application No. CN201620467058.1, discloses A kind of hold over system for thermal power plant's peak regulation accumulation of heat, including:Boiler, steam turbine, heat supply pipeline, regenerative apparatus and heat user, Regenerative apparatus is connected with heat supply pipeline, and regenerative apparatus is direct regenerative apparatus or indirect regenerative apparatus, the storage of the regenerative apparatus Thermal medium is water, steam, conduction oil or phase change heat storage material, and the heat user is industrial user or resident heating user.This is special Profit meets heat supply and the power generation needs of winter fired power generating unit to a certain extent, but cannot realize summer peak load regulation network and storage Heat.
The content of the invention
In order to meet peaking demand of power grid, and living necessities of the power plant in keen competition, depth peak regulation is imperative. The present invention by thermoelectricity thermal power plant unit operational flexibility technology and electric boiler district heating technology, and combine summer across season from Right water body accumulation of heat, it is possible to achieve thermal power plant's depth peak regulation of summer, so as to be obviously improved the online peak regulation energy of thermoelectricity unit in summer Power, both can effectively alleviate regenerative resource and dissolve predicament, and the big scale of construction cross-season heat-storage of heating water can be realized again, and future must Wide market development prospect will be possessed.
In order to overcome problems of the prior art, the technical solution adopted in the present invention to be:A kind of solid heat storage electricity The accumulation of heat peak regulation system that boiler and across season natural water are combined, including it is power plant's heating system, across season natural water system, solid Body thermal storage electric boiler system and heat supply network water circulation system, it is characterised in that:Across the season natural water system include water collecting sump, Accumulation of heat water body, water-locator, water-bed protective layer and water surface insulation coating, rainwater-collecting and drainage system;The solid stores Water-tube boiler system includes solid heat storage electric boiler and its connection power network and pipeline;Power plant's heating system is heated including heat supply network Device.
Preferably, the water collecting sump excavates to be formed for civil engineering, and transverse cross-sectional shape includes trapezoidal.
Any of the above-described scheme is preferably, and the water collecting sump bottom and surrounding hypotenuse soil do smooth treatment.
Any of the above-described scheme is preferably, and the accumulation of heat water body includes water quality a up to Natural Water for heating cycle water quality standard Body, water is more than 10,000 tons, and water temperature maximum temperature is less than 85 DEG C.
Any of the above-described scheme is preferably, and the water-locator is arranged in accumulation of heat water body, including the hot vertical water distribution of charge and discharge Device, can be used for water body Inlet and outlet water and charge and discharge heat.
Any of the above-described scheme is preferably, and the water-bed protective layer is arranged at water collecting sump bottom and surrounding, including insulation and Waterproof heat-insulating layer.
Any of the above-described scheme is preferably, and the insulation coating is arranged at accumulation of heat water surface, including floating type insulation Coating.
Any of the above-described scheme is preferably, and the solid heat storage electric boiler includes high voltage control cabinet, heat-insulation layer, high pressure heating Resistance, storage bodies, geomantic omen heat exchanger and circulating fan.
Any of the above-described scheme is preferably, and the heat-insulation layer forms closing space, the storage bodies, geomantic omen heat exchanger and follows Ring blower fan is located inside the heat-insulation layer, and the geomantic omen heat exchanger is connected with the storage bodies by hot collecting terminal.The wind Water- to-water heat exchanger is connected with water inlet pipe, outlet pipe, and the water inlet pipe, outlet pipe are opened on heat-insulation layer respectively, and with heat-insulation layer outside Conveyance conduit be connected.High-voltage connection, the high voltage control cabinet are provided between the high voltage control cabinet and the storage bodies Outside the heat-insulation layer, the high-voltage connection passes through the heat-insulation layer, is connected with high pressure heating resistor, the high pressure heating Distribution of resistance is in the side of storage bodies.
Any of the above-described scheme is preferably, and the storage bodies include high-temperature heat accumulation magnesia brick, and high-tension electricity is by the pressure high Thermal resistance generates heat, and heats the high-temperature heat accumulation magnesia brick so as to realize accumulation of heat.
Any of the above-described scheme is preferably, and the high pressure heating resistor includes resistance heating pipe, resistive heater or resistance Heating plate variform.
Any of the above-described scheme is preferably, and the geomantic omen heat exchanger sidles the low pressure finned-tube bundle heat exchange inside tube bank for water Device.
Any of the above-described scheme is preferably, and the circulating fan is recycled high temperature air, with variable-ratio, high temperature resistant, low The characteristics of power consumption and phase long-life.
Any of the above-described scheme is preferably, the solid heat storage electric boiler system voltage 10 ~ 220kV of rate range, separate unit 0 ~ 90MW of power bracket, the power of part model boiler can in the range of 0% ~ 100% step-less adjustment.
Any of the above-described scheme is preferably, and the heat supply network water circulation system includes heat exchangers for district heating inlet and outlet pipe, solid Thermal storage electric boiler inlet and outlet pipe, across season natural water system inlet and outlet pipe, heating network confession, a water return pipeline; Connected by multiple threeways, water pump and valve between each pipeline.
Any of the above-described scheme is preferably, and one time heating network supply channel sets threeway A and threeway B, the threeway A mono- Across the season natural water system of end connection, another two ends as heating water entrance and exit, described threeway B one end connects solid Thermal storage electric boiler system outlet pipeline, the second end connection heat exchangers for district heating outlet conduit, heating network of three-terminal link is supplied Water end (W.E.);One time heating network water return pipeline sets threeway C and threeway D, and described threeway C one end connects across season Natural Water system System, another two ends as heating water entrance and exit, described threeway D one end connects solid heat storage grill pan furnace system water inlet pipe Road, the second end connection heat exchangers for district heating inlet channel, heating network backwater end of three-terminal link.
Any of the above-described scheme is preferably, and during accumulation of heat, central heating hot water can enter into solid heat storage grill pan furnace system Row one-level is heated, it is also possible to is carried out two grades of heating into solid heat storage electric boiler+heat exchangers for district heating, is finally all entered accumulation of heat water body Carry out accumulation of heat.
Any of the above-described scheme is preferably, and in peak regulation period summer, solid heat storage electric boiler converts electrical energy into heat energy, and This heat energy is stored in accumulation of heat water body across season;In the winter time the heat supply phase, will be stored up in accumulation of heat water body by heat supply network water circulation system The heat energy deposited is discharged for heat supply, such iterative cycles, by the conversion and the confession of heat supply network circulation of electric energy and heat energy Heated conveying, can be greatly enhanced the Winter heat supply ability of steam power plant, and 100% ground ensures the security of heat supply.
In the present invention, natural water is accomplished that the prolonged accumulation of heat across season, and solid heat storage electric boiler in itself may be used Realize the accumulation of heat demand of short time.
The core of above-mentioned cross-season heat-storage peak regulation system is cross-season heat-storage water body and solid heat storage electric boiler equipment, is passed through Steam power plant and solid heat storage electric boiler are combined into a big peak regulation system by cross-season heat-storage water body, realize that the depth of summer is adjusted Peak and summer heat supply are produced, and its heat is large-scale among hot water across being seasonally stored in, and are obviously improved thermoelectricity unit Online peak modulation capacity and realize the depth peak regulation of whole year, both can effectively alleviate regenerative resource and dissolve predicament, have again wide Market development space.
One in the present invention or several solid heat storage electric boilers also can be replaced electrode boiler, by solid heat storage electric boiler System is changed into solid heat storage electric boiler and liquid-type electrode boiler hybrid system.Solid electricity accumulation of heat peak adjusting device have high voltage, It is high-power, can accumulation of heat the characteristics of.Liquid-type electrode boiler system includes one or more electrode boiler bodies and one cycle system System and its power network access system.Electrode water boiler is combined with solid heat storage electric boiler, two kinds of grill pans can be considered The respective advantage of stove, electrode boiler voltage change is smoothed, and impacts small to power network, and solid heat storage electric boiler drive voltage level Height, can save transformer budget.
Current power plant inside peak regulation relies primarily on boiler load shedding or the heat supply of turbine by pass pressure and temperature reducing, electric boiler in summer Realize that thermal power plant unit thermoelectricity in short term realize by decoupling with the technology such as accumulation of heat water pot heat accumulation, although such technology can reach certain tune Peak is acted on, but is limited in itself by boiler and steam turbine security and technology, and large-scale accumulation of heat water pot storage volume and safety Property limitation, it is impossible to realize the purpose of depth peak regulation, maximum problem be these technologies and electric boiler and accumulation of heat water pot in itself, Summer cannot be run completely, therefore general steam power plant is that cannot carry out depth peak regulation by electric boiler and accumulation of heat water pot in summer , with reference to described above, the present invention has advantages below compared to prior art:
1)By introducing across season from hot water combination solid heat storage electric boiler, it is possible to achieve the thermoelectricity flexibility peak regulation work(of summer Can, so it is greatly improved the economic benefit of steam power plant.And it is much low across the unit volume accumulation of heat cost of season natural water In large-scale accumulation of heat water pot and other phase change energy storage technologies, its security is also much larger than accumulation of heat water pot and phase-change accumulation energy.
2)Appropriateness configuration solid heat storage electric boiler, unit can be made to reach minimum generation load in the case of, electricity volume Level off to 0, substantially carrying out the peak regulation period does not have online load, reaches the purpose of depth peak regulation, is farthest cleaning energy Online space is conceded in source, effectively alleviates regenerative resource and dissolves predicament.
3)Warm season in the winter time, natural accumulation of heat water body and solid heat storage electric-type hot-water boiler can serve as optimal emergent Standby heat source, improves the reliability of heat supply.
4)With building for progressively implementing for the policies such as peak regulation service charge, time-of-use tariffs, particularly future electrical energy spot market The appearance of vertical and negative rate for incorporation into the power network, will necessarily promote the depth peak regulation demand of steam power plant, and following market development space will be more Come bigger.
Brief description of the drawings
Fig. 1 is the one of the accumulation of heat peak regulation system combined according to solid heat storage electric boiler of the invention and across season natural water The schematic diagram of preferred embodiment.
Fig. 2 is that the solid of the accumulation of heat peak regulation system that solid heat storage electric boiler of the invention and across season natural water are combined stores The profile of one preferred embodiment of water-tube boiler.
Diagram:1- solid heat storage electric boilers, 2- heat exchangers for district heatings, 3- threeways B, 4- threeway D, 5- threeway A, 6- threeway C, 7- Insulation coating, 8- water-locators, 9- accumulation of heat water bodys, 10- bottoms protective layer, 11- high voltage control cabinets, 12- high-voltage connections, 13- is high Pressure thermal resistance, 14- storage bodies, 15- heat-insulation layers, 16- geomantic omens heat exchanger, 17- circulating fans.
Specific embodiment
In order to be further understood that the content of the invention of the invention, more detailed is made to the present invention below in conjunction with specific embodiment Thin description, embodiment only has exemplary effect to the present invention, without any restricted effect;Any this area skill The insubstantial modifications that art personnel make on the basis of of the invention, should all belong to the scope of protection of the invention.
Embodiment 1
As shown in figure 1, the accumulation of heat peak regulation system that a kind of solid heat storage electric boiler and across season natural water are combined, including power plant plus Hot systems, across season natural water system, solid heat storage grill pan furnace system and heat supply network water circulation system, it is characterised in that:It is described Across season natural water system includes water collecting sump, accumulation of heat water body 9, water-locator 8, water-bed protective layer 10 and water surface insulation covering Layer 7, rainwater-collecting and drainage system;The solid heat storage grill pan furnace system includes solid heat storage electric boiler 1 and its connection power network And pipeline;Power plant's heating system includes heat exchangers for district heating 2.
In the present embodiment, the water collecting sump excavates to be formed for civil engineering, and transverse cross-sectional shape includes trapezoidal.
In the present embodiment, the water collecting sump bottom and surrounding hypotenuse soil do smooth treatment.
In the present embodiment, the accumulation of heat water body 9 includes water quality a up to natural water for heating cycle water quality standard, water 50000 tons, 80 DEG C of water temperature maximum temperature.
In the present embodiment, the water-locator 8 is arranged in accumulation of heat water body 9, is the vertical water-locator of charge and discharge heat, be can be used for Water body Inlet and outlet water and charge and discharge heat.
In the present embodiment, the water-bed protective layer 10 is arranged at water collecting sump bottom and surrounding, including insulation and waterproof every Thermosphere.
In the present embodiment, the insulation coating 7 is arranged at the surface of accumulation of heat water body 9, is floating type insulation coating.
In the present embodiment, the solid heat storage electric boiler 1 includes high voltage control cabinet 11, heat-insulation layer 15, high pressure heating electric Resistance 13, storage bodies 14, geomantic omen heat exchanger 16 and circulating fan 17.
As shown in Fig. 2 in the present embodiment, the heat-insulation layer 15 forms closing space, the heat exchange of the storage bodies 14, geomantic omen Device 16 and circulating fan 17 are located inside the heat-insulation layer 15, and the geomantic omen heat exchanger 16 is collected with the storage bodies 14 by heat End is connected.The geomantic omen heat exchanger 16 is connected with water inlet pipe, outlet pipe, and the water inlet pipe, outlet pipe are opened on guarantor respectively Warm layer 15, and be connected with the conveyance conduit outside heat-insulation layer 15.Set between the high voltage control cabinet 11 and the storage bodies 14 There is high-voltage connection 12, the high voltage control cabinet 11 is located at outside the heat-insulation layer 15, and the high-voltage connection 12 passes through the insulation Layer 15, is connected with high pressure heating resistor 13, and the high pressure heating resistor 13 is distributed in the side of storage bodies 14.
In the present embodiment, the storage bodies 14 include high-temperature heat accumulation magnesia brick, and high-tension electricity is by the high pressure heating resistor 13 heatings, heat the high-temperature heat accumulation magnesia brick so as to realize accumulation of heat.
In the present embodiment, the high pressure heating resistor 13 includes resistance heating pipe, resistive heater or resistance heating plate Piece variform.
In the present embodiment, the geomantic omen heat exchanger 16 for water sidle tube bank inside low pressure finned-tube bundle heat exchanger.
In the present embodiment, the circulating fan 17 is recycled high temperature air, with variable-ratio, high temperature resistant, low power consumption and The characteristics of phase long-life.
In the present embodiment, the solid heat storage electric boiler system voltage 10 ~ 220kV of rate range, separate unit power bracket 0 ~ 90MW, the power of part model boiler can in the range of 0% ~ 100% step-less adjustment.
In the present embodiment, the heat supply network water circulation system includes heat exchangers for district heating inlet and outlet pipe, solid heat storage grill pan Stove inlet and outlet pipe, across season natural water system inlet and outlet pipe, heating network confession, a water return pipeline;Each pipeline it Between connected by multiple threeways, water pump and valve.
In the present embodiment, a heating network supply channel sets threeway A5 and threeway B3, and described threeway A5 one end connects Connect across season natural water system, another two ends as heating water entrance and exit, threeway B3 one end connection solid stores The system outlet pipeline of water-tube boiler 1, the second end connection outlet conduit of heat exchangers for district heating 2, heating network of three-terminal link is supplied Water end (W.E.);One time heating network water return pipeline sets threeway C6 and threeway D4, and described threeway C6 one end connects across season natural water System, another two ends as heating water entrance and exit, the system water inlet of described threeway D4 one end connection solid heat storage electric boiler 1 Pipeline, the second end connection inlet channel of heat exchangers for district heating 2, heating network backwater end of three-terminal link.
In the present embodiment, during accumulation of heat, central heating hot water can carry out one-level and add into solid heat storage grill pan furnace system Heat, it is also possible to carry out two grades of heating into solid heat storage electric boiler 1+ heat exchangers for district heatings 2, finally all carried out into accumulation of heat water body 9 Accumulation of heat.
In the present embodiment, in peak regulation period summer, solid heat storage electric boiler 1 converts electrical energy into heat energy, and this is hot Can be in season be stored in accumulation of heat water body 9;Heat supply phase in the winter time, will be stored in accumulation of heat water body 9 by heat supply network water circulation system Heat energy is discharged for heat supply, such iterative cycles, defeated by the conversion of electric energy and heat energy and the heat supply of heat supply network circulation Send, the Winter heat supply ability of steam power plant can be greatly enhanced, and 100% ground ensures the security of heat supply.
In the present embodiment, natural water is accomplished that the prolonged accumulation of heat across season, and solid heat storage electric boiler 1 Body can realize the accumulation of heat demand of short time.
The core of above-mentioned cross-season heat-storage peak regulation system is cross-season heat-storage water body 9 and the equipment of solid heat storage electric boiler 1, is led to Cross cross-season heat-storage water body 9 and steam power plant and solid heat storage electric boiler 1 are combined into a big peak regulation system, realize the depth of summer Degree peak regulation and summer heat supply production, and its heat is large-scale among hot water across being seasonally stored in, it is obviously improved thermoelectricity The online peak modulation capacity of unit simultaneously realizes the depth peak regulation of whole year, both can effectively alleviate regenerative resource and dissolve predicament, there is wide again Wealthy market development space.
Current power plant inside peak regulation relies primarily on boiler load shedding or the heat supply of turbine by pass pressure and temperature reducing, electric boiler in summer Realize that thermal power plant unit thermoelectricity in short term realize by decoupling with the technology such as accumulation of heat water pot heat accumulation, although such technology can reach certain tune Peak is acted on, but is limited in itself by boiler and steam turbine security and technology, and large-scale accumulation of heat water pot storage volume and safety Property limitation, it is impossible to realize the purpose of depth peak regulation, maximum problem be these technologies and electric boiler and accumulation of heat water pot in itself, Summer cannot be run completely, therefore general steam power plant is that cannot carry out depth peak regulation by electric boiler and accumulation of heat water pot in summer , with reference to described above, the present invention has advantages below compared to prior art:
1)By introducing across season from hot water combination solid heat storage electric boiler 1, it is possible to achieve the thermoelectricity flexibility peak regulation of summer Function, is so greatly improved the economic benefit of steam power plant.And across season natural water unit volume accumulation of heat cost much Less than large-scale accumulation of heat water pot and other phase change energy storage technologies, its security is also much larger than accumulation of heat water pot and phase-change accumulation energy.
2)Appropriateness configuration solid heat storage electric boiler 1, unit can be made to reach minimum generation load in the case of, electricity volume Level off to 0, substantially carrying out the peak regulation period does not have online load, reaches the purpose of depth peak regulation, is farthest cleaning energy Online space is conceded in source, effectively alleviates regenerative resource and dissolves predicament.
3)Warm season in the winter time, natural accumulation of heat water body 9 and solid heat storage electric-type hot-water boiler can serve as it is optimal should Anxious standby heat source, improves the reliability of heat supply.
4)With building for progressively implementing for the policies such as peak regulation service charge, time-of-use tariffs, particularly future electrical energy spot market The appearance of vertical and negative rate for incorporation into the power network, will necessarily promote the depth peak regulation demand of steam power plant, and following market development space will be more Come bigger.
Embodiment 2
The accumulation of heat peak regulation system knot that the present embodiment is combined with solid heat storage electric boiler and across season natural water described in embodiment 1 Structure is identical, except that, one therein or several solid heat storage electric boilers 1 are substituted for electrode water boiler, form solid Body thermal storage electric boiler and liquid-type electrode boiler hybrid system, most the hot water of two kinds of grill pan stove heats squeezes into Natural Water storage at last Heat.Solid electricity accumulation of heat peak adjusting device have high voltage, it is high-power, can accumulation of heat the characteristics of.By electrode water boiler and solid heat storage Electric boiler 1 is combined, and can consider two kinds of respective advantages of electric boiler, and electrode boiler voltage change is smoothed, and power network is rushed Hit small, and the drive voltage level of solid heat storage electric boiler 1 is high, can save transformer budget.
Although the present invention has shown and described referring particularly to its preferred embodiment, those skilled in the art can be with Understand, the various changes in form and details can be made without deviating from the model of the invention described in appended claims Enclose.It is described in detail above in association with specific embodiment of the invention, but is not limitation of the present invention.It is every according to this hair Bright technical spirit still falls within the scope of technical solution of the present invention to any simple modification made for any of the above embodiments.

Claims (10)

1. the accumulation of heat peak regulation system that a kind of solid heat storage electric boiler and across season natural water are combined, including power plant's heating system, Across season natural water system, solid heat storage grill pan furnace system and heat supply network water circulation system, it is characterised in that:It is described across season from Right water body system includes water collecting sump, accumulation of heat water body(9), water-locator(8), water-bed protective layer(10)Coating is incubated with water surface (7), rainwater-collecting and drainage system;The solid heat storage grill pan furnace system includes solid heat storage electric boiler(1)And its connection electricity Net and pipeline;Power plant's heating system includes heat exchangers for district heating(2).
2. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 1 and across season natural water are combined, its It is characterised by:The water collecting sump excavates to be formed for civil engineering, and transverse cross-sectional shape includes trapezoidal.
3. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 2 and across season natural water are combined, its It is characterised by:The water collecting sump bottom and surrounding hypotenuse soil do smooth treatment.
4. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 1 and across season natural water are combined, its It is characterised by:The accumulation of heat water body(9)Including water quality a up to natural water for heating cycle water quality standard, water is more than 10,000 tons, Water temperature maximum temperature is less than 85 DEG C.
5. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 1 and across season natural water are combined, its It is characterised by:The water-locator(8)It is arranged on accumulation of heat water body(9)In, including the hot vertical water-locator of charge and discharge, can be used for water body and enter Water outlet and charge and discharge heat.
6. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 1 and across season natural water are combined, its It is characterised by:The water-bed protective layer(10)It is arranged at water collecting sump bottom and surrounding, including insulation and waterproof heat-insulating layer.
7. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 1 and across season natural water are combined, its It is characterised by:The insulation coating(7)It is arranged at accumulation of heat water body(9)Surface, including floating type insulation coating.
8. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 1 and across season natural water are combined, its It is characterised by:The solid heat storage electric boiler includes high voltage control cabinet(11), heat-insulation layer(15), high pressure heating resistor(13), storage Can body(14), geomantic omen heat exchanger(16)And circulating fan(17).
9. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 8 and across season natural water are combined, its It is characterised by:The heat-insulation layer(15)Form closing space, the storage bodies(14), geomantic omen heat exchanger(16)And circulating fan (17)Positioned at the heat-insulation layer(15)It is internal.
10. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 8 and across season natural water are combined, its It is characterised by:The storage bodies(14)Including high-temperature heat accumulation magnesia brick, high-tension electricity is by the high pressure heating resistor(13)Heating, plus The heat high-temperature heat accumulation magnesia brick is so as to realize accumulation of heat.
CN201710170901.9A 2017-03-07 2017-03-21 The accumulation of heat peak regulation system that solid heat storage electric boiler and across season natural water are combined Pending CN106839054A (en)

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CN201710132311 2017-03-07
CN2017101323117 2017-03-07

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