CN107062355A - Electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system - Google Patents
Electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system Download PDFInfo
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- CN107062355A CN107062355A CN201710051543.XA CN201710051543A CN107062355A CN 107062355 A CN107062355 A CN 107062355A CN 201710051543 A CN201710051543 A CN 201710051543A CN 107062355 A CN107062355 A CN 107062355A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D13/00—Electric heating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—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
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- Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a kind of electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system, including main electrical scheme system（17）, electric heat storage system（15）With heat supply network circulation（16）.Electric heat storage system（15）In power plant's outlet bus（14）A upper newly-increased interval, with step-down transformer（1）Connection, step-down transformer（1）The other end is connected with electric heat-storage device power supply buses, and one or more electric heat-storage devices are connected on power supply buses；Heat supply network circulation（16）The water outlet side ducts of heating water set lateral, are connected with the electric heat-storage device, and hot water flows out after being heated through electric heat-storage device, imports heat supply network water supply line（5）.Two systems are combined into by a big peak regulation system by electric thermal storage equipment, realize power generation and the mutually auxiliary operation of heat supply production, the online peak modulation capacity of thermoelectricity unit is obviously improved, both can effectively alleviate regenerative resource and dissolve predicament, there is wide market development space again.
Description
Technical field
The present invention relates to power plant's electricity volume adjustment field, more particularly to thermal power plant's thermal power plant unit 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 capacities of the new energy such as wind-powered electricity generation, photoelectricity and nuclear power, is abandoned wind and is showed
As serious.Cogeneration units " electricity determining by heat " mode is run, and peak modulation capacity is only 10% or so.Peak regulation difficulty has become electricity
Distinct issues the most in network operation.Contradiction processing between peak load regulation network and fired power generating unit heat supply is bad, may influence resident
Heat supply in winter safety, the relation people's livelihood.It is deep in order to meet peaking demand of power grid, and living necessities of the power plant in keen competition
Spend peak regulation imperative.
Peak regulation relies primarily on unit load shedding and main steam high pressure bypass pressure and temperature reducing peak regulation technique etc. inside current power plant
To realize, although such technology can reach the purpose of peak regulation, limited in itself by region large area heating demand and technology,
It is unable to reach the purpose of depth peak regulation.It is another to there is prior art to participate in peak regulation, such as Application No. using electric heat-storage device
201610528383.9 Chinese patent there is provided a kind of cogeneration units with regenerative apparatus and its peak regulating method, heat
Electricity Federation production unit includes steam turbine, heat exchangers for district heating, regenerative apparatus, circulation pump of heat-supply network, and regenerative apparatus is oblique using phase-change material
Warm layer heat-accumulator tank and its regulating system, are placed on after heat exchangers for district heating, and the water outlet of heat exchangers for district heating part is used as accumulation of heat thermal source.In machine
When group participates in the change of peak regulation quantity of heat production, by opening/shutting valve, change the working condition of regenerative apparatus.Lead to when unit quantity of heat production is big
Cross heat exchangers for district heating heat supply, regenerative apparatus accumulation of heat；When quantity of heat production is few, regenerative apparatus heat release substitutes heat exchangers for district heating part and taken out
Vapour heats heat supply network backwater, and thermal substation is sent to after being mixed with heat exchangers for district heating water outlet.Although the patent has used electric heat-storage device ginseng
With peak regulation, but used electric heat-storage device can not meet the adjustable actual demand of power bracket, there is the heat accumulation of system
The problem of ability and low peak modulation capacity.
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 integrated thermoelectricity thermal power plant unit operational flexibility technology of the present invention and electric boiler district heating technology, realize power generation and heating power life
Production is mutually auxiliary to be run, and is obviously improved the online peak modulation capacity of thermoelectricity unit, both can effectively have been alleviated regenerative resource and dissolve predicament, have again
Wide market development space.
In order to overcome problems of the prior art, the technical solution adopted in the present invention is：A kind of electric heat storage boiler
Thermal power plant's thermal power plant unit depth peak regulation system, including main electrical scheme system, electric heat storage system and heat supply network circulation are aided in, master connects
Linear system system increases an interval newly on power plant's outlet bus, is connected with step-down transformer, the step-down transformer other end and electric accumulation of heat
Device power supply buses are connected, and one or more electric heat-storage devices are connected on power supply buses；Heat supply network circulation heating water
Water outlet side ducts set lateral, be connected with the electric heat-storage device, hot water heated through electric heat-storage device after flow out, remittance
Heat supply network water supply line.Wherein, electric accumulation of heat refers to the various equipment and system for carrying out energy reserve as the energy using electricity.
Preferably, the electric heat-storage device includes liquid-type electric heat-storage device and solid type electric heat-storage device.
Any of the above-described scheme is preferably, and the liquid-type electric heat-storage device includes electric pole type hot-water boiler.
Any of the above-described scheme is preferably, and the solid type electric heat-storage device includes the electric heat storage boiler of solid type.Solid type
Electric heat storage boiler has sufficiently large energy-storage system, can be at night, and the period of low power consumption carries out energy storage, and on daytime, enters
Row heating, energy supply, this advantage solve the problem of heating and wind-powered electricity generation low ebb are dissolved simultaneously.Solid type electricity accumulation of heat peak adjusting device tool
Have high voltage, it is high-power, can accumulation of heat the characteristics of.
Any of the above-described scheme is preferably, and the electric heat storage system includes the electric accumulation of heat of liquid-type electric heat storage system, solid type
The electric accumulation of heat hybrid system of system, liquid-type and solid type.
Any of the above-described scheme is preferably, and the liquid-type electric heat storage system includes the electric accumulation of heat dress of one or more liquid-types
Put and its connect power network, liquid-type electric heat storage system refer to only with liquid-type hot water hold over system carry out depth peak regulation equipment and
System, mainly using electric pole type hot-water boiler as capital equipment, electric energy and heat energy conversion are carried out using water as heat storage and working medium.
Any of the above-described scheme is preferably, and the solid type electric heat storage system includes the electric accumulation of heat dress of one or more solid types
Power network is put and its connects, solid type electric heat storage system, which refers to, to carry out the equipment of depth peak regulation using solid type electric heat storage system and be
System, mainly using the electric heat storage boiler of solid type as capital equipment, electric energy and heat energy conversion are carried out to wait solid as heat storage.
Any of the above-described scheme is preferably, and the electric accumulation of heat hybrid system of the liquid-type and solid type includes the electric accumulation of heat of liquid-type
Device, solid type electric heat-storage device and its connection power network, the system is using electric pole type hot water hold over system and the electric accumulation of heat of solid type
The system that system is combined carries out depth peak regulation, and the nucleus equipment of this system is electric pole type hot-water boiler and the electric heat accumulating pan of solid type
Stove.This system has mainly considered two kinds of respective advantages of electric boiler, and electric pole type solid electricity heat storage boiler voltage change is smooth,
Small is impacted to power network, and the electric heat storage boiler heat storage capacity of solid is big, the characteristics of floor space is small.
Any of the above-described scheme is preferably, and the electric heat-storage device is according to the supporting setting GIS switchgears of actual requirement of engineering
Or bus switchgear.
Any of the above-described scheme is preferably, it is characterised in that：Newly-increased interval, transformer, GIS device, electric heat-storage device it
Between according to actual requirement of engineering use steel-cored aluminium strand or cable connection.
Any of the above-described scheme is preferably, and the heat supply network circulation includes heat supply network water return pipeline, pumps for hot water supply net, heat
Net heater, valve, heat supply network water supply line.
Any of the above-described scheme is preferably, and heat supply network recirculated water flows through pumps for hot water supply net by heat user end heat supply network water return pipeline and entered
Enter heat exchangers for district heating and carry out one-level heating, electric heat-storage device is flowed into after heat exchangers for district heating outflow, after being heated through electric heat-storage device
Outflow, imports heat supply network water supply line.
Any of the above-described scheme is preferably, the main electrical scheme system include the first generator, the second generator, transformer,
Thermal power plant's bus, the first outlet, the second outlet and connection power network.
Any of the above-described scheme is preferably, 10 ~ 66kV of the solid type electric heat-storage device voltage class ranges.
Any of the above-described scheme is preferably, 10 ~ 100MW of the solid type electric heat-storage device power bracket.
Any of the above-described scheme is preferably, 6 ~ 20kV of the liquid-type electric heat-storage device voltage class ranges.
Any of the above-described scheme is preferably, 0 ~ 50MW of the liquid-type electric heat-storage device power bracket.
Any of the above-described scheme is preferably, the liquid-type electric heat-storage device power can in the range of 0% ~ 100% stepless-adjustment
Section.
Centered on the present invention is using electric thermal storage equipment, one is constituted with heat supply power plant original outlet circuit, heat-net-pipeline etc.
Individual complete electric accumulation of heat peak regulation system.Electric thermal storage equipment main electrical scheme system increases an interval newly on power plant's outlet bus, passes through
Voltage class is down to after electric thermal storage equipment required voltage grade by step-down transformer, as the power supply of electric thermal storage equipment,
Thermal energy storage is converted electrical energy into by electric thermal storage equipment, this system belongs to energy-storage system；Heat supply network water system predominantly exists
The water outlet side increase branch of former central heating hot water connects electric heat storage system, is heated by one-level of the original through heat exchangers for district heating, is changed to heat
The two-step heating of net heater+electricity thermal storage equipment, this system belongs to exoergic system.The core of two systems is electric thermal storage equipment,
Two systems are combined into by a big peak regulation system by electric thermal storage equipment, power generation and the mutually auxiliary fortune of heat supply production is realized
OK, the online peak modulation capacity of thermoelectricity unit is obviously improved, both can effectively alleviate regenerative resource and dissolve predicament, there is wide city again
Field development space.
System in the present invention is stored electric energy by electric thermal storage equipment in the electric thermal storage equipment work of peak regulation period,
In the non-peak regulation period, electric thermal storage equipment is discharged the heat energy of storage by heat supply network water system, and such iterative cycles pass through electricity
The conversion of energy heat energy and the heat supply conveying of heat supply network water system, realize the purpose of peak regulation of power plant.According to the choosing of electric thermal storage equipment capacity
Select the load operation that can realize thermal power plant unit power plant 0 to 50%.
Peak regulation relies primarily on load shedding or the heat supply of unit high pressure turbine by pressure and temperature reducing, hot-water cylinder heat accumulation etc. inside current power plant
Technology realizes that thermal power plant unit thermoelectricity decouples to realize in short term, although such technology can be supplied up to there is certain Peak Load Adjustment
The limitation of thermic load and technology in itself, it is impossible to reach the purpose of depth peak regulation is beneficial compared to above-mentioned prior art
Effect is：
1）The electric thermal storage equipment of appropriateness configuration can make in the case that unit reaches minimum generation load, and electricity volume levels off to 0, base
Realize that the peak regulation period does not have online load on this, reach the purpose of depth peak regulation, farthest concede online for clean energy resource
Space.
2）Electric thermal storage equipment as emergency power thermal source, can improve the reliability of heat supply.
3）Online space is provided for new energy to greatest extent, effectively alleviates regenerative resource and dissolves predicament.
4）With progressively implementing for the policies such as peak regulation service charge, time-of-use tariffs, with wide market development space.
The integrated thermoelectricity thermal power plant unit operational flexibility technology of the present invention and electric boiler district heating technology, realize power generation
With the mutually auxiliary operation of heating power production, the online peak modulation capacity of thermoelectricity unit is obviously improved, both can effectively alleviate regenerative resource dissolves
Predicament, there is wide market development space again.
Brief description of the drawings
Fig. 1 is to aid in the one of thermal power plant's thermal power plant unit depth peak regulation system to be preferable to carry out according to the electric heat storage boiler of the present invention
The schematic diagram of example.
Fig. 2 is the electric accumulation of heat system of liquid-type in the electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system of the present invention
The schematic diagram of one preferred embodiment of system.
Fig. 3 is the electric accumulation of heat system of solid type in the electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system of the present invention
The schematic diagram of one preferred embodiment of system.
Fig. 4 is liquid-type and solid type in the electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system of the present invention
The schematic diagram of one preferred embodiment of electric accumulation of heat hybrid system.
Illustrate：
1- step-down transformers, 2- electricity accumulation of heat buses, 3- solid type electric heat-storage devices, 4- liquid-type electric heat-storage devices, 5- heat supply networks are supplied
Waterpipe, 6- heat supply network water return pipelines, 7- pumps for hot water supply net, 8- heat exchangers for district heatings, 9- valves, the generators of 10- second, 11- first
Generator, the outlets of 12- first, the outlets of 13- second, 14- power plant outlet bus, 15- electric heat storage systems, 16- heat supply network circulating waters
System, 17- main electrical scheme systems.
Embodiment
In order to be further understood that the content of the invention of the present 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 the present invention, should all belong to the scope of protection of the invention.
Embodiment 1
As shown in figure 1, a kind of electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system, including main electrical scheme system 17,
Electric heat storage system 15 and heat supply network circulation 16, electric heat storage system 15 increase an interval newly on power plant's outlet bus 14, with
Step-down transformer 1 is connected, and the other end of step-down transformer 1 is connected with electric heat-storage device power supply buses, one or more electric accumulation of heat dresses
Put and be connected on power supply buses；The water outlet side ducts of the heating water of heat supply network circulation 16 set lateral, with the electricity
Regenerative apparatus is connected, and hot water flows out after being heated through electric heat-storage device, imports heat supply network water supply line 5.Wherein, electric accumulation of heat refers to use
Electricity carries out the various equipment and system of energy reserve as the energy.
In the present embodiment, the electric heat-storage device includes liquid-type electric heat-storage device 4.
In the present embodiment, the liquid-type electric heat-storage device 4 includes electric pole type hot-water boiler.
In the present embodiment, the electric heat storage system includes liquid-type electric heat storage system.
As shown in Fig. 2 in the present embodiment, the liquid-type electric heat storage system includes the electric accumulation of heat of one or more liquid-types
Device 4 and its connection power network, liquid-type electric heat storage system refers to carries out setting for depth peak regulation only with electric pole type hot water hold over system
Standby and system, mainly using electric pole type hot-water boiler as capital equipment, carries out electric energy as heat storage and working medium using water and heat energy turns
Change.
In the present embodiment, the electric heat-storage device is opened according to the supporting setting GIS switchgears of actual requirement of engineering or bus
Close equipment.
In the present embodiment, increase newly interval, between step-down transformer 1, GIS device, electric heat-storage device according to Practical Project need
To use steel-cored aluminium strand or cable connection.
In the present embodiment, the heat supply network circulation 16 adds including heat supply network water return pipeline 5, pumps for hot water supply net 7, heat supply network
Hot device 8, valve 9, heat supply network water supply line 6.
In the present embodiment, heat supply network recirculated water flows through pumps for hot water supply net 7 by heat user end heat supply network water return pipeline 6 and enters heat supply network
Heater 8 carries out one-level heating, flows into electric heat-storage device after the outflow of heat exchangers for district heating 8, is flowed out after being heated through electric heat-storage device,
Import heat supply network water supply line 5.
In the present embodiment, the main electrical scheme system includes the first generator 11, the second generator 10, transformer, power plant
Outlet bus 14, the first outlet 12, the second outlet 13 and connection power network.
In the present embodiment, the 6 ~ 20kV of voltage class ranges of liquid-type electric heat-storage device 4.
In the present embodiment, the 0 ~ 50MW of power bracket of liquid-type electric heat-storage device 4.
In the present embodiment, the power of liquid-type electric heat-storage device 4 can in the range of 0% ~ 100% step-less adjustment.
Centered on the present invention is using electric thermal storage equipment, one is constituted with heat supply power plant original outlet circuit, heat-net-pipeline etc.
Individual complete electric accumulation of heat peak regulation system.Electric thermal storage equipment main electrical scheme system 17 increases an interval, warp newly on power plant's outlet bus
Cross step-down transformer 1 voltage class is down to after electric thermal storage equipment required voltage grade, be used as the power supply electricity of electric thermal storage equipment
Source, thermal energy storage is converted electrical energy into by electric thermal storage equipment, and this system belongs to energy-storage system；Heat supply network circulation master
To be heated to connect electric heat storage system in the water outlet side of former central heating hot water increase branch by one-level of the original through heat exchangers for district heating 8,
The two-step heating of the electric thermal storage equipments of heat exchangers for district heating 8+ is changed to, this system belongs to exoergic system.The core of two systems stores for electricity
Two systems are combined into a big peak regulation system by hot equipment by electric thermal storage equipment, realize power generation and heat supply production
Mutually auxiliary operation, is obviously improved the online peak modulation capacity of thermoelectricity unit, both can effectively alleviate regenerative resource and dissolve predicament, there is wide again
Wealthy market development space.
System in the present invention is stored electric energy by electric thermal storage equipment in the electric thermal storage equipment work of peak regulation period,
In the non-peak regulation period, electric thermal storage equipment is discharged the heat energy of storage by heat supply network circulation 16, such iterative cycles,
Conveyed by the conversion of electric energy and heat energy and the heat supply of heat supply network circulation 16, realize the purpose of peak regulation of power plant.According to electric accumulation of heat
The selection of place capacity can realize load operation of the thermal power plant unit power plant 0 to 50%.
Beneficial effect compared to prior art is：
1）The electric thermal storage equipment of appropriateness configuration can make in the case that unit reaches minimum generation load, and electricity volume levels off to 0, base
Realize that the peak regulation period does not have online load on this, reach the purpose of depth peak regulation, farthest concede online for clean energy resource
Space.
2）Electric thermal storage equipment as emergency power thermal source, can improve the reliability of heat supply.
3）Online space is provided for new energy to greatest extent, effectively alleviates regenerative resource and dissolves predicament.
4）With progressively implementing for the policies such as peak regulation service charge, time-of-use tariffs, with wide market development space.
The integrated thermoelectricity thermal power plant unit operational flexibility technology of the present invention and electric boiler district heating technology, realize power generation
With the mutually auxiliary operation of heating power production, the online peak modulation capacity of thermoelectricity unit is obviously improved, both can effectively alleviate regenerative resource dissolves
Predicament, there is wide market development space again.
Embodiment 2
As shown in figure 1, a kind of electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system, including main electrical scheme system 17,
Electric heat storage system 15 and heat supply network circulation 16, electric heat storage system 15 increase an interval newly on power plant's outlet bus 14, with
Step-down transformer 1 is connected, and the other end of step-down transformer 1 is connected with electric heat-storage device power supply buses, one or more electric accumulation of heat dresses
Put and be connected on power supply buses；The water outlet side ducts of the heating water of heat supply network circulation 16 set lateral, with the electricity
Regenerative apparatus is connected, and hot water flows out after being heated through electric heat-storage device, imports heat supply network water supply line 5.Wherein, electric accumulation of heat refers to use
Electricity carries out the various equipment and system of energy reserve as the energy.
In the present embodiment, the electric heat-storage device includes solid type electric heat-storage device 3.
In the present embodiment, the solid type electric heat-storage device 3 includes the electric heat storage boiler of solid type.Solid type electricity heat accumulating pan
Stove has sufficiently large energy-storage system, can be at night, and the period of low power consumption carries out energy storage, and on daytime, is heated, supplied
Can, this advantage solves the problem of heating and wind-powered electricity generation low ebb are dissolved simultaneously.Solid type electricity accumulation of heat peak adjusting device have high voltage,
It is high-power, can accumulation of heat the characteristics of.
In the present embodiment, the electric heat storage system includes solid type electric heat storage system.
As shown in figure 3, in the present embodiment, the solid type electric heat storage system includes the electric accumulation of heat of one or more solid types
Device 3 and its connection power network, solid type electric heat storage system refer to using solid type electric heat storage system carry out depth peak regulation equipment and
System, is mainly capital equipment with the electric heat storage boiler 3 of solid type, electric energy and heat energy conversion is carried out using solid as heat storage.
In the present embodiment, the electric heat-storage device is opened according to the supporting setting GIS switchgears of actual requirement of engineering or bus
Close equipment.
In the present embodiment, increase newly interval, between step-down transformer 1, GIS device, electric heat-storage device according to Practical Project need
To use steel-cored aluminium strand or cable connection.
In the present embodiment, the heat supply network circulation 16 adds including heat supply network water return pipeline 5, pumps for hot water supply net 7, heat supply network
Hot device 8, valve 9, heat supply network water supply line 6.
In the present embodiment, heat supply network recirculated water flows through pumps for hot water supply net 7 by heat user end heat supply network water return pipeline 6 and enters heat supply network
Heater 8 carries out one-level heating, flows into electric heat-storage device after the outflow of heat exchangers for district heating 8, is flowed out after being heated through electric heat-storage device,
Import heat supply network water supply line 5.
In the present embodiment, the main electrical scheme system includes the first generator 11, the second generator 10, transformer, power plant
Outlet bus 14, the first outlet 12, the second outlet 13 and connection power network.
In the present embodiment, the 10 ~ 66kV of voltage class ranges of solid type electric heat-storage device 3.
In the present embodiment, the 10 ~ 100MW of power bracket of solid type electric heat-storage device 3.
Centered on the present invention is using electric thermal storage equipment, one is constituted with heat supply power plant original outlet circuit, heat-net-pipeline etc.
Individual complete electric accumulation of heat peak regulation system.Electric thermal storage equipment main electrical scheme system 17 increases an interval newly on power plant's outlet bus 14,
After step-down transformer 1 to be down to electric thermal storage equipment required voltage grade by voltage class, the power supply of electric thermal storage equipment is used as
Power supply, thermal energy storage is converted electrical energy into by electric thermal storage equipment, and this system belongs to energy-storage system；Heat supply network circulation
Electric heat storage system predominantly is connect in the water outlet side increase branch of former central heating hot water, is added by one-level of the original through heat exchangers for district heating 8
Heat, is changed to the two-step heating of the electric thermal storage equipments of heat exchangers for district heating 8+, and this system belongs to exoergic system.The core of two systems is electricity
Two systems are combined into a big peak regulation system by thermal storage equipment by electric thermal storage equipment, realize power generation and heat supply life
Production is mutually auxiliary to be run, and is obviously improved the online peak modulation capacity of thermoelectricity unit, both can effectively have been alleviated regenerative resource and dissolve predicament, have again
Wide market development space.
System in the present invention is stored electric energy by electric thermal storage equipment in the electric thermal storage equipment work of peak regulation period,
In the non-peak regulation period, electric thermal storage equipment is discharged the heat energy of storage by heat supply network circulation 16, such iterative cycles,
Conveyed by the conversion of electric energy and heat energy and the heat supply of heat supply network circulation 16, realize the purpose of peak regulation of power plant.According to electric accumulation of heat
The selection of place capacity can realize load operation of the thermal power plant unit power plant 0 to 50%.
Beneficial effect compared to prior art is：
1）The electric thermal storage equipment of appropriateness configuration can make in the case that unit reaches minimum generation load, and electricity volume levels off to 0, base
Realize that the peak regulation period does not have online load on this, reach the purpose of depth peak regulation, farthest concede online for clean energy resource
Space.
2）Electric thermal storage equipment as emergency power thermal source, can improve the reliability of heat supply.
3）Online space is provided for new energy to greatest extent, effectively alleviates regenerative resource and dissolves predicament.
4）With progressively implementing for the policies such as peak regulation service charge, time-of-use tariffs, with wide market development space.
The integrated thermoelectricity thermal power plant unit operational flexibility technology of the present invention and electric boiler district heating technology, realize power generation
With the mutually auxiliary operation of heating power production, the online peak modulation capacity of thermoelectricity unit is obviously improved, both can effectively alleviate regenerative resource dissolves
Predicament, there is wide market development space again.
Embodiment 3
As shown in figure 1, a kind of electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system, including main electrical scheme system 17,
Electric heat storage system 15 and heat supply network circulation 16, electric heat storage system 15 increase an interval newly on power plant's outlet bus 14, with
Step-down transformer 1 is connected, and the other end of step-down transformer 1 is connected with electric heat-storage device power supply buses, one or more electric accumulation of heat dresses
Put and be connected on power supply buses；The water outlet side ducts of the heating water of heat supply network circulation 16 set lateral, with the electricity
Regenerative apparatus is connected, and hot water flows out after being heated through electric heat-storage device, imports heat supply network water supply line 5.Wherein, electric accumulation of heat refers to use
Electricity carries out the various equipment and system of energy reserve as the energy.
In the present embodiment, the electric heat-storage device includes liquid-type electric heat-storage device 4 and solid type electric heat-storage device 3.
In the present embodiment, the liquid-type electric heat-storage device 4 includes electric pole type hot-water boiler.
In the present embodiment, the solid type electric heat-storage device 3 includes the electric heat storage boiler of solid type.
In the present embodiment, the electric heat storage system includes liquid-type and the electric accumulation of heat hybrid system of solid type.
As shown in figure 4, in the present embodiment, the electric accumulation of heat hybrid system of the liquid-type and solid type includes liquid-type electricity and stored
Thermal 4, solid type electric heat-storage device 3 and its connection power network, the system is using electric pole type hot water hold over system and solid type electricity
The system that hold over system is combined carries out depth peak regulation, and the nucleus equipment of this system is that electric pole type hot-water boiler and solid type electricity store
Heat boiler.This system has mainly considered two kinds of respective advantages of electric boiler, and electric pole type hot-water boiler voltage change is smooth, right
Power network impact is small, and the electric heat storage boiler heat storage capacity of solid is big, the characteristics of floor space is small.
In the present embodiment, the electric heat-storage device is opened according to the supporting setting GIS switchgears of actual requirement of engineering or bus
Close equipment.
In the present embodiment, increase newly interval, between step-down transformer 1, GIS device, electric heat-storage device according to Practical Project need
To use steel-cored aluminium strand or cable connection.
In the present embodiment, the heat supply network circulation 16 adds including heat supply network water return pipeline 5, pumps for hot water supply net 7, heat supply network
Hot device 8, valve 9, heat supply network water supply line 6.
In the present embodiment, heat supply network recirculated water flows through pumps for hot water supply net 7 by heat user end heat supply network water return pipeline 6 and enters heat supply network
Heater 8 carries out one-level heating, flows into electric heat-storage device after the outflow of heat exchangers for district heating 8, is flowed out after being heated through electric heat-storage device,
Import heat supply network water supply line 5.
In the present embodiment, the main electrical scheme system includes the first generator 11, the second generator 10, transformer, thermoelectricity
Factory's bus, the first outlet 12, the second outlet 13 and connection power network.
In the present embodiment, the 10 ~ 66kV of voltage class ranges of solid type electric heat-storage device 3.
In the present embodiment, the 10 ~ 100MW of power bracket of solid type electric heat-storage device 3.
In the present embodiment, the 6 ~ 20kV of voltage class ranges of liquid-type electric heat-storage device 4.
In the present embodiment, the 0 ~ 50MW of power bracket of liquid-type electric heat-storage device 4.
In the present embodiment, the power of liquid-type electric heat-storage device 4 can in the range of 0% ~ 100% step-less adjustment.
Centered on the present invention is using electric thermal storage equipment, one is constituted with heat supply power plant original outlet circuit, heat-net-pipeline etc.
Individual complete electric accumulation of heat peak regulation system.Electric thermal storage equipment main electrical scheme system 17 increases an interval newly on power plant's outlet bus 14,
After step-down transformer 1 to be down to electric thermal storage equipment required voltage grade by voltage class, the power supply of electric thermal storage equipment is used as
Power supply, thermal energy storage is converted electrical energy into by electric thermal storage equipment, and this system belongs to energy-storage system；Heat supply network circulation
Electric heat storage system predominantly is connect in the water outlet side increase branch of former central heating hot water, is added by one-level of the original through heat exchangers for district heating 8
Heat, is changed to the two-step heating of the electric thermal storage equipments of heat exchangers for district heating 8+, and this system belongs to exoergic system.The core of two systems is electricity
Two systems are combined into a big peak regulation system by thermal storage equipment by electric thermal storage equipment, realize power generation and heat supply life
Production is mutually auxiliary to be run, and is obviously improved the online peak modulation capacity of thermoelectricity unit, both can effectively have been alleviated regenerative resource and dissolve predicament, have again
Wide market development space.
System in the present invention is stored electric energy by electric thermal storage equipment in the electric thermal storage equipment work of peak regulation period,
In the non-peak regulation period, electric thermal storage equipment is discharged the heat energy of storage by heat supply network circulation 16, such iterative cycles,
Conveyed by the conversion of electric energy and heat energy and the heat supply of heat supply network circulation 16, realize the purpose of peak regulation of power plant.According to electric accumulation of heat
The selection of place capacity can realize load operation of the thermal power plant unit power plant 0 to 50%.
Beneficial effect compared to prior art is：
1）The electric thermal storage equipment of appropriateness configuration can make in the case that unit reaches minimum generation load, and electricity volume levels off to 0, base
Realize that the peak regulation period does not have online load on this, reach the purpose of depth peak regulation, farthest concede online for clean energy resource
Space.
2）Electric thermal storage equipment as emergency power thermal source, can improve the reliability of heat supply.
3）Online space is provided for new energy to greatest extent, effectively alleviates regenerative resource and dissolves predicament.
4）With progressively implementing for the policies such as peak regulation service charge, time-of-use tariffs, with wide market development space.
The integrated thermoelectricity thermal power plant unit operational flexibility technology of the present invention and electric boiler district heating technology, realize power generation
With the mutually auxiliary operation of heating power production, the online peak modulation capacity of thermoelectricity unit is obviously improved, both can effectively alleviate regenerative resource dissolves
Predicament, there is wide market development space again.
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 departing from the model of the invention described in appended claims
Enclose.It is described in detail above in association with the specific embodiment of the present 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. a kind of electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system, including main electrical scheme system（17）, electric accumulation of heat
System（15）With heat supply network circulation（16）, it is characterised in that：Electric heat storage system（15）In power plant's outlet bus（14）It is upper new
Increase an interval, with step-down transformer（1）Connection, step-down transformer（1）The other end is connected with electric heat-storage device power supply buses, and one
Individual or multiple electric heat-storage devices are connected on power supply buses；Heat supply network circulation（16）The water outlet side ducts of heating water are set
Lateral, is connected with the electric heat-storage device, and hot water flows out after being heated through electric heat-storage device, imports heat supply network water supply line（5）.
2. electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system according to claim 1, it is characterised in that：
The electric heat-storage device includes liquid-type electric heat-storage device（4）With solid type electric heat-storage device（3）.
3. electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system according to claim 2, it is characterised in that：
The liquid-type electric heat-storage device（4）Including electric pole type hot-water boiler.
4. electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system according to claim 2, it is characterised in that：
The solid type electric heat-storage device（3）Including the electric heat storage boiler of solid type.
5. electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system according to claim 1, it is characterised in that：
The electric heat storage system includes the electric accumulation of heat mixing of liquid-type electric heat storage system, solid type electric heat storage system, liquid-type and solid type
System.
6. electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system according to claim 5, it is characterised in that：
The liquid-type electric heat storage system includes one or more liquid-type electric heat-storage devices（4）And its connection power network.
7. electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system according to claim 5, it is characterised in that：
The solid type electric heat storage system includes one or more solid type electric heat-storage devices（3）And its connection power network.
8. electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system according to claim 5, it is characterised in that：
The electric accumulation of heat hybrid system of the liquid-type and solid type includes liquid-type electric heat-storage device（4）, solid type electric heat-storage device（3）And
It connects power network.
9. electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system according to claim 5, it is characterised in that：
The electric heat-storage device is according to the supporting setting GIS switchgears of actual requirement of engineering or bus switchgear.
10. the electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system of any one according to claim 1 ~ 9,
It is characterized in that：Newly-increased interval, step-down transformer（1）, GIS switchgears, adopted according to actual requirement of engineering between electric heat-storage device
With steel-cored aluminium strand or cable connection.
Applications Claiming Priority (2)
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| CN2016111694392 | 2016-12-16 | ||
| CN201611169439 | 2016-12-16 |
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| CN201720088142.7U Active CN206469330U (en) | 2016-12-16 | 2017-01-23 | Electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system |
| CN201710051543.XA Pending CN107062355A (en) | 2016-12-16 | 2017-01-23 | Electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system |
| CN201720246875.9U Ceased CN206648010U (en) | 2016-12-16 | 2017-03-14 | The depth peak regulation system that electrode boiler combines with feedwater heating |
| CN201720246876.3U Active CN206656340U (en) | 2016-12-16 | 2017-03-14 | The depth peak regulation system that electrode boiler combines with condensate heating |
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| CN201720246875.9U Ceased CN206648010U (en) | 2016-12-16 | 2017-03-14 | The depth peak regulation system that electrode boiler combines with feedwater heating |
| CN201720246876.3U Active CN206656340U (en) | 2016-12-16 | 2017-03-14 | The depth peak regulation system that electrode boiler combines with condensate heating |
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Cited By (5)
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| CN108131843A (en) * | 2017-11-30 | 2018-06-08 | 赫普科技发展（北京）有限公司 | Peak-frequency regulation system based on distributed electrical accumulation of heat hydrophone |
| CN108317595A (en) * | 2018-02-02 | 2018-07-24 | 沈阳智通工程有限公司 | Heat supply method and device, heating system |
| CN108534113A (en) * | 2018-04-28 | 2018-09-14 | 赫普科技发展（北京）有限公司 | A kind of load side electric heat storage boiler frequency modulation system and method |
| CN110332578A (en) * | 2019-06-13 | 2019-10-15 | 华电电力科学研究院有限公司 | A kind of thermal power cogeneration central heating system and operation method for heat supply network side coupling electric heat storage peak regulation |
| CN111322789A (en) * | 2020-03-16 | 2020-06-23 | 明阳智慧能源集团股份公司 | Nuclear power and wind power combined hydrogen production and heat supply system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206469330U (en) * | 2016-12-16 | 2017-09-05 | 赫普热力发展有限公司 | Electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system |
| CN108050690B (en) * | 2017-12-11 | 2018-11-30 | 山西省工业设备安装集团有限公司 | One kind being used for heat supply initial station residual heat using device |
| CN108592136B (en) * | 2018-07-13 | 2023-10-31 | 大连亨利测控仪表工程有限公司 | Double-cylinder decoupling depth peak shaving system for thermal power plant flexible transformation |
| CN108775612A (en) * | 2018-08-20 | 2018-11-09 | 天津津电供电设计所有限公司 | Based on the active peak regulation system of solid heat accumulation and electric system |
| CN110112744A (en) * | 2019-06-05 | 2019-08-09 | 大连亨利科技有限公司 | It is a kind of to participate in thermal power plant's depth peak regulation and frequency modulation system using flying wheel battery and electrode boiler joint |
| CN110631259A (en) * | 2019-10-23 | 2019-12-31 | 沈阳汇智源电力工程技术服务有限公司 | Electrode type hot water boiler |
| CN110671690A (en) * | 2019-10-31 | 2020-01-10 | 赵毅 | Electrode boiler and heat storage water tank combined peak regulation method and special device |
| CN112856363B (en) * | 2021-01-14 | 2021-10-22 | 浙江大学 | System and method for improving heat supply steam parameters of deep peak shaving heat supply unit |
| CN115435309B (en) * | 2022-09-02 | 2024-08-13 | 中国能源建设集团辽宁电力勘测设计院有限公司 | Thermoelectric decoupling system of heating back pressure steam turbine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN206656340U (en) | 2017-11-21 |
| CN206469330U (en) | 2017-09-05 |
| CN206648010U (en) | 2017-11-17 |
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Address after: 100176 Beijing City, Tongzhou District branch of Beijing economic and Technological Development Zone, thirteen street, 18 Hospital No. 12 Building 2 Room 201 Applicant after: Hep Energy and Environment Technology Co.,Ltd. Address before: 100176 Beijing City, Tongzhou District branch of Beijing economic and Technological Development Zone, thirteen street, 18 Hospital No. 12 Building 2 Room 201 Applicant before: HEPU HEATING POWER DEVELOPMENT Co. |
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Application publication date: 20170818 |