CN206648147U - The accumulation of heat peak regulation system that solid heat storage electric boiler and across season natural water combine - Google Patents

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

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Publication number
CN206648147U
CN206648147U CN201720277897.1U CN201720277897U CN206648147U CN 206648147 U CN206648147 U CN 206648147U CN 201720277897 U CN201720277897 U CN 201720277897U CN 206648147 U CN206648147 U CN 206648147U
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heat
water
accumulation
electric boiler
heating
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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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Beijing HEMPEL Electric Power Technology Co., 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

Abstract

The accumulation of heat peak regulation system that a kind of solid heat storage electric boiler and across season natural water combine; 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 utility model 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 regenerative resource consumption predicament can effectively have been alleviated, 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 combine
Technical field
It the utility model is related to steam power plant's thermoelectricity flexibility peak regulation and cross-season heat-storage field, more particularly to thermal power plant Thermal power plant unit 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 It is particularly thorny between fired power generating unit flexibility, the scarce capacity of the new energy such as power network consumption wind-powered electricity generation, photoelectricity and nuclear power, abandon wind and show As serious.At present, as the implementation that Tohoku Electric Power assistant service is merchandised, increasing steam power plant pass 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 or electricity The thermoelectricity such as boiler decouple and peak regulating plan, can not all realize.
Peak regulation relies primarily on boiler load shedding or the heat supply of turbine by pass pressure and temperature reducing, electric boiler in summer inside power plant at present Realize that thermal power plant unit thermoelectricity decouples to realize, although such technology can reach certain tune in short term with technologies such as accumulation of heat water pot heat accumulations Peak acts 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 The limitation of property, can not realize the purpose of depth peak regulation, it is maximum the problem of be these technologies and electric boiler and accumulation of heat water pot in itself, Summer can not be run completely, therefore general steam power plant is that can not carry out depth peak regulation by electric boiler and accumulation of heat water pot in summer , and because boiler at low load is run, system for desulfuration and denitration discharge can be brought exceeded, a series of problems, such as boiler flameout.Separately There is prior art to participate in peak regulation using soil source cold-storage and thermal storage system and device, the China such as Application No. 201620107121.0 is special Profit, there is provided a kind of 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, in addition to ground heat exchanger, lithium bromide absorption type heat pump unit, closed cooling tower.The existing skill In art, the temperature of cooling-tower circulating water is reduced during summer first with underground cold, later-stage utilization cooling-tower circulating water enters to soil Row accumulation of heat;The heat stored during winter using the extraction of lithium bromide absorption type heat pump unit, heat is provided for concentrated supply of heating in the city, 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 used regenerative apparatus can not meet the adjustable actual demand of power bracket, and also cost is higher, system be present Heat storage capacity difference it is low with peak modulation capacity the problem of.For another example Application No. CN201620467058.1 Chinese patent, is disclosed 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 can not realize summer peak load regulation network and storage Heat.
Utility model content
In order to meet peaking demand of power grid, and living necessities of the power plant in keen competition, depth peak regulation are imperative. The utility model by thermoelectricity thermal power plant unit operational flexibility technology and electric boiler district heating technology, and combine summer across season Save natural water accumulation of heat, it is possible to achieve thermal power plant's depth peak regulation of summer, adjusted so as to be obviously improved the online of thermoelectricity unit in summer It peak energy power, both can effectively alleviate regenerative resource consumption predicament, and the big scale of construction cross-season heat-storage of heating water can have been realized again, not Wide market development prospect will be possessed.
In order to overcome problems of the prior art, technical scheme is used by the utility model:A kind of solid stores The accumulation of heat peak regulation system that water-tube boiler and across season natural water combine, including power plant's heating system, across season Natural Water system System, solid heat storage grill pan furnace system and heat supply network water circulation system, it is characterised in that:Across the season natural water system includes storing Puddle, accumulation of heat water body, water-locator, water-bed protective layer and water surface insulation coating, rainwater-collecting and drainage system;It is described solid Body thermal storage electric boiler system includes solid heat storage electric boiler and its connection power network and pipeline;Power plant's heating system includes heat supply network Heater.
Preferably, the water collecting sump is that civil engineering is excavated to be formed, 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 processing.
Any of the above-described scheme is preferably, and the accumulation of heat water body includes water quality up to the Natural Water of a heating cycle water quality standard Body, water are 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, includes the vertical water distribution of charge and discharge heat Device, available 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 is followed 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 outside heat-insulation layer 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 passes through the high pressure 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 Generate heat plate variform.
Any of the above-described scheme is preferably, and the geomantic omen heat exchanger is that the low pressure finned-tube bundle that water is sidled inside tube bank exchanges heat Device.
Any of the above-described scheme is preferably, and the circulating fan is recycled high temperature air, has 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, a heating network supplies, water return pipeline; Connected between each pipeline by multiple threeways, water pump and valve.
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- End connects across season natural water system, entrance and exit of the another both ends as heating water, and 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 supply Water end (W.E.);Heating network water return pipeline sets threeway C and threeway D, and described threeway C one end connects across season Natural Water system System, entrance and exit of the another both ends as heating water, described threeway D one end connect 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 heats, and can also enter solid heat storage electric boiler+heat exchangers for district heating and carry out two level heating, finally all enter 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;Heat supply period in the winter time, it will be stored up by heat supply network water circulation system in accumulation of heat water body The heat energy deposited is discharged for heat supply, such iterative cycles, passes through the conversion of electric energy and heat energy and the confession of heat supply network circulation Heated conveying, the Winter heat supply ability of steam power plant can be greatly enhanced, and 100% ground ensures the security of heat supply.
In the utility model, natural water is accomplished that the prolonged accumulation of heat across season, and solid heat storage electric boiler sheet 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 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 production, and its heat is large-scale among hot water across being seasonally stored in, it is obviously improved thermoelectricity unit Online peak modulation capacity and realize whole year depth peak regulation, both can effectively alleviate regenerative resource consumption predicament, have again wide Market development space.
One in the utility model or several solid heat storage electric boilers also can be replaced electrode boiler, by solid heat storage electricity Steam generator system is changed into solid heat storage electric boiler and liquid-type electrode boiler hybrid system.Solid electricity accumulation of heat peak adjusting device has high electricity Pressure, 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 and its power network access system.Electrode water boiler is combined with solid heat storage electric boiler, two kinds of electricity can be considered Boiler each the advantages of, electrode boiler voltage change is smooth, impacts small, and solid heat storage electric boiler drive voltage level to power network Height, transformer budget can be saved.
Peak regulation relies primarily on boiler load shedding or the heat supply of turbine by pass pressure and temperature reducing, electric boiler in summer inside power plant at present Realize that thermal power plant unit thermoelectricity decouples to realize, although such technology can reach certain tune in short term with technologies such as accumulation of heat water pot heat accumulations Peak acts 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 The limitation of property, can not realize the purpose of depth peak regulation, it is maximum the problem of be these technologies and electric boiler and accumulation of heat water pot in itself, Summer can not be run completely, therefore general steam power plant is that can not carry out depth peak regulation by electric boiler and accumulation of heat water pot in summer , there is advantages below compared to prior art with reference to described above the utility model:
1)By introducing across season from hot water combination solid heat storage electric boiler, it is possible to achieve the thermoelectricity flexibility tune of summer Peak function, so it is greatly improved the economic benefit of steam power plant.It is and remote across the unit volume accumulation of heat cost of season natural water Far below 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, it can make in the case that unit reaches minimum generation load, 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 consumption 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 meet an urgent need Standby heat source, improve 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, following market development space will be got over Come bigger.
Brief description of the drawings
Fig. 1 is the accumulation of heat peak regulation system combined according to solid heat storage electric boiler of the present utility model and across season natural water A preferred embodiment schematic diagram.
Fig. 2 is consolidating for the accumulation of heat peak regulation system that solid heat storage electric boiler of the present utility model and across season natural water combine The profile of one preferred embodiment of body thermal storage electric 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- are high Pressure thermal resistance, 14- storage bodies, 15- heat-insulation layers, 16- geomantic omens heat exchanger, 17- circulating fans.
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 accumulation of heat peak regulation system that a kind of solid heat storage electric boiler and across season natural water combine, including electricity Factory'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: Across the 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 Coating 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 is that civil engineering is excavated to be formed, and transverse cross-sectional shape includes trapezoidal.
In the present embodiment, the water collecting sump bottom and surrounding hypotenuse soil do smooth processing.
In the present embodiment, the accumulation of heat water body 9 includes water quality up to the natural water of a 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 storage bodies 14, geomantic omen heat exchange 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, the high pressure heating resistor 13 is distributed in the side of storage bodies 14 with high pressure heating resistor 13.
In the present embodiment, the storage bodies 14 include high-temperature heat accumulation magnesia brick, and high-tension electricity passes through 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 is that water sidles the low pressure finned-tube bundle heat exchanger inside restraining.
In the present embodiment, the circulating fan 17 is recycled high temperature air, have 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, a heating network supplies, water return pipeline;Each pipeline it Between pass through multiple threeways, water pump and valve connect.
In the present embodiment, a heating network supply channel sets threeway A5 and threeway B3, and described threeway A5 one end connects Across season natural water system, entrance and exit of the another both ends as heating water are connect, 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 supply Water end (W.E.);Heating network water return pipeline sets threeway C6 and threeway D4, and described threeway C6 one end connects across season natural water System, entrance and exit of the another both ends as heating water, the system water inlet of 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 enter solid heat storage grill pan furnace system progress one-level and add Heat, solid heat storage electric boiler 1+ heat exchangers for district heatings 2 can also be entered and carry out two level heating, 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 It can be stored in across season in accumulation of heat water body 9;Heat supply period in the winter time, it will be stored by heat supply network water circulation system in accumulation of heat water body 9 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 Peak regulation and summer heat supply production are spent, 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 and the depth peak regulation for realizing whole year, it both can effectively alleviate regenerative resource consumption predicament, have again wide Wealthy market development space.
Peak regulation relies primarily on boiler load shedding or the heat supply of turbine by pass pressure and temperature reducing, electric boiler in summer inside power plant at present Realize that thermal power plant unit thermoelectricity decouples to realize, although such technology can reach certain tune in short term with technologies such as accumulation of heat water pot heat accumulations Peak acts 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 The limitation of property, can not realize the purpose of depth peak regulation, it is maximum the problem of be these technologies and electric boiler and accumulation of heat water pot in itself, Summer can not be run completely, therefore general steam power plant is that can not carry out depth peak regulation by electric boiler and accumulation of heat water pot in summer , there is advantages below compared to prior art with reference to described above the utility model:
1)By introducing across season from hot water combination solid heat storage electric boiler 1, it is possible to achieve the thermoelectricity flexibility of summer Peak regulating function, so it is greatly improved the economic benefit of steam power plant.And across the unit volume accumulation of heat cost of season natural water Well below 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, it can make in the case that unit reaches minimum generation load, 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 consumption 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 optimal answer Anxious standby heat source, improve 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, following market development space will be got over Come bigger.
Embodiment 2
The accumulation of heat peak regulation system that the present embodiment is combined with the solid heat storage electric boiler described in embodiment 1 and across season natural water Structure of uniting is identical, except that, one therein or several solid heat storage electric boilers 1 are substituted for electrode water boiler, shape Into solid heat 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 at last Accumulation of heat.Solid electricity accumulation of heat peak adjusting device have high voltage, it is high-power, can accumulation of heat the characteristics of.Electrode water boiler and solid are stored Water-tube boiler 1 is combined, the advantages of can considering two kinds of electric boilers each, and electrode boiler voltage change is smooth, to power network Impact small, and the drive voltage level of solid heat storage electric boiler 1 is high, can save transformer budget.
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 (18)

1. the accumulation of heat peak regulation system that a kind of solid heat storage electric boiler and across season natural water combine, 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 combine, its It is characterised by:The water collecting sump is that civil engineering is excavated to be formed, 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 combine, its It is characterised by:The water collecting sump bottom and surrounding hypotenuse soil do smooth processing.
4. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 1 and across season natural water combine, its It is characterised by:The accumulation of heat water body(9)Natural water including water quality up to a heating cycle water quality standard, water are 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 combine, its It is characterised by:The water-locator(8)It is arranged on accumulation of heat water body(9)In, include the vertical water-locator of charge and discharge heat, enter available for water body 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 combine, 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 combine, 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 combine, 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 combine, 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 combine, its It is characterised by:The storage bodies(14)Including high-temperature heat accumulation magnesia brick, high-tension electricity passes through the high pressure heating resistor(13)Heating, adds The heat high-temperature heat accumulation magnesia brick is so as to realizing accumulation of heat.
11. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 10 and across season natural water combine, It is characterized in that:The high pressure heating resistor(13)Including resistance heating pipe, resistive heater or a variety of shapes of resistance heating plate State.
12. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 8 and across season natural water combine, its It is characterised by:The geomantic omen heat exchanger(16)The low pressure finned-tube bundle heat exchanger inside tube bank is sidled for water.
13. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 8 and across season natural water combine, its It is characterised by:The circulating fan(17)Recyclable high temperature air.
14. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 1 and across season natural water combine, its It is characterised by:The solid heat storage electric boiler system voltage 10 ~ 220kV of rate range, 0 ~ 90MW of separate unit power bracket.
15. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 1 and across season natural water combine, its It is characterised by:The heat supply network water circulation system includes heat exchangers for district heating inlet and outlet pipe, solid heat storage electric boiler inlet tube and outlet tube Road, across season natural water system inlet and outlet pipe, a heating network supplies, water return pipeline;Pass through multiple three between each pipeline Logical, water pump and valve connection.
16. the accumulation of heat peak regulation system that solid heat storage electric boiler according to claim 15 and across season natural water combine, It is characterized in that:One time heating network supply channel sets threeway A(5)With threeway B(3), the threeway A(5)One end connection across Season natural water system, entrance and exit of the another both ends as heating water, the threeway B(3)One end connects solid heat storage Grill pan furnace system outlet pipeline, the second end connection heat exchangers for district heating(2)Outlet conduit, heating network of three-terminal link supply water End;One time heating network water return pipeline sets threeway C(6)With threeway D(4), the threeway C(6)One end connects across season nature Water body system, entrance and exit of the another both ends as heating water, the threeway D(4)One end connection solid heat storage electric boiler system System inlet pipeline, the second end connection heat exchangers for district heating(2)Inlet channel, heating network backwater end of three-terminal link.
17. the accumulation of heat that the solid heat storage electric boiler and across season natural water according to claim 1 ~ 16 any one combine Peak regulation system, it is characterised in that:During accumulation of heat, central heating hot water can enter solid heat storage grill pan furnace system progress one-level and add Heat, solid heat storage electric boiler can also be entered(1)+ heat exchangers for district heating(2)Two level heating is carried out, finally all enters accumulation of heat water body (9)Carry out accumulation of heat.
18. the accumulation of heat that the solid heat storage electric boiler and across season natural water according to claim 1 ~ 16 any one combine Peak regulation system, it is characterised in that:In peak regulation period summer, solid heat storage electric boiler(1)Heat energy is converted electrical energy into, and this is hot Accumulation of heat water body can be stored in across season(9)In;Heat supply period in the winter time, by the transport of heat supply network water circulation system by accumulation of heat water body (9)The heat energy of middle storage is discharged for heat supply.
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CN109405615A (en) * 2018-09-26 2019-03-01 中国科学院电工研究所 A kind of cross-season heat-storing pond based on phase-change material
CN111928318A (en) * 2020-07-29 2020-11-13 内蒙古科技大学 Energy storage heating system and automatic energy storage heating vehicle

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CN206724281U (en) * 2017-06-22 2017-12-08 赫普热力发展有限公司 Thermoelectricity decouples peak regulation system
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CN109405615A (en) * 2018-09-26 2019-03-01 中国科学院电工研究所 A kind of cross-season heat-storing pond based on phase-change material
CN109405615B (en) * 2018-09-26 2020-04-28 中国科学院电工研究所 Cross-season heat storage pool based on phase change material
CN111928318A (en) * 2020-07-29 2020-11-13 内蒙古科技大学 Energy storage heating system and automatic energy storage heating vehicle

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