CN110332718A - Utilize the system of groove type solar conduction oil collection hot working fluid heating coal-fired boiler hot primary wind - Google Patents
Utilize the system of groove type solar conduction oil collection hot working fluid heating coal-fired boiler hot primary wind Download PDFInfo
- Publication number
- CN110332718A CN110332718A CN201910647349.7A CN201910647349A CN110332718A CN 110332718 A CN110332718 A CN 110332718A CN 201910647349 A CN201910647349 A CN 201910647349A CN 110332718 A CN110332718 A CN 110332718A
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- Prior art keywords
- heat
- coal
- groove type
- conduction oil
- hot
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/30—Solar heat collectors using working fluids with means for exchanging heat between two or more working fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
- F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2201/00—Pretreatment of solid fuel
- F23K2201/10—Pulverizing
- F23K2201/103—Pulverizing with hot gas supply
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/50—Energy storage in industry with an added climate change mitigation effect
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Using the system of groove type solar conduction oil collection hot working fluid heating coal-fired boiler hot primary wind, it is related to technical field of new energy utilization.The present invention is the problem of drying capacity of pulverizer is insufficient, and leading to the temperature of boiler heat primary air cannot meet the requirements in order to solve when the coal moisture that power plant uses is high.The present invention couples reproducible solar energy resources with coal-burning boiler, and the high level for forming solar energy utilizes system.It will be in solar energy resources thermal-arrest to conduction oil by trough type solar heat-collector, the heat primary air that the high temperature heat conductive oil of acquisition is exchanged heat heat to boiler preheater outlet by heat exchanger, heat heat primary air, make that the temperature of heat primary air reaches boiler design value and the desiccant as pulverized coal preparation system enters coal pulverizer, to improve the drying capacity of pulverized coal preparation system, it is ideal to realize that burning air distribution achievees the effect that, enable boiler with oepration at full load, burning high-moisture coal quality, the problem of drying capacity of pulverizer deficiency can thoroughly be solved.
Description
Technical field
The invention belongs to technical field of new energy utilization, more particularly to are added using solar energy to coal-fired boiler hot primary wind
Heat.
Background technique
At present since the factors such as the fluctuation of thermal coal price cause the practical burning coal of many power plant to be frequently not design coal
Matter, sometimes for higher benefit is pursued, there are larger differences with designing coal quality for the coal quality of power plant combustion.When the coal actually used
When the moisture of kind is higher than former design coal moisture, it is insufficient to will lead to the existing drying capacity of pulverizer of power plant, while by denitration
Device puts into operation the limitation of temperature requirement, cannot promote the temperature of heat primary air by improving pre-heater inlet smoke temperature, lead to pot
Design value is not achieved in furnace heat primary air temperature, unfavorable to coal dust firing in boiler, so as to cause boiler not energy band oepration at full load, electricity
Factory's unit economy is poor.
Summary of the invention
The present invention is to solve when the coal moisture that power plant uses is high, and drying capacity of pulverizer is insufficient, leads to boiler
The problem of temperature of heat primary air cannot be met the requirements now provides and heats coal-fired pot using groove type solar conduction oil collection hot working fluid
The system of furnace heat primary air.
Utilize the system of groove type solar conduction oil collection hot working fluid heating coal-fired boiler hot primary wind, comprising: slot type thermal-arrest
Device and heat exchanger；
Groove type heat collector is used in the heat collection to conduction oil of solar energy, and the conduction oil after collecting heat is for passing through
Heat is exchanged the heat primary air exported to coal-burning boiler air preheater by heat exchanger.
Above-mentioned groove type heat collector is located at the top of ground or workshop, the thermal conductivity hot oil outlet of groove type heat collector and the heat of heat exchanger
Heat conducting oil inlet connection, the cold conduction oil outlet of heat exchanger are connected to the cold heat conducting oil inlet of groove type heat collector, and coal-burning boiler is empty
The air outlet of air preheater is connected to the air intake vent of heat exchanger.
The air outlet of above-mentioned heat exchanger is connected to the feeding inlet of coal pulverizer, and the heat primary air of heat exchanger output is as desiccant
For coal to be dried.
Above system further includes high-temperature heat-conductive oil tank, and high-temperature heat-conductive oil tank is for collecting the high temperature after solar energy heating
Conduction oil.
Mixer is in series on access between above-mentioned heat exchanger and coal pulverizer, mixer is also connected to run coal bin, mixing
Case is used to mix the heat primary air after heating with raw coal.
The present invention couples reproducible solar energy resources with coal-burning boiler, and the high level for forming solar energy utilizes system.
By trough type solar heat-collector by solar energy resources thermal-arrest to conduction oil, the high temperature heat conductive oil of acquisition will be warm by heat exchanger
The heat primary air that export to boiler preheater of amount heat exchange, heating heat primary air, make the temperature of heat primary air reach boiler design value,
And the desiccant as pulverized coal preparation system enters coal pulverizer, to improve the drying capacity of pulverized coal preparation system, realizes that burning air distribution reaches
To ideal effect, enables boiler with oepration at full load, can thoroughly solve burning high-moisture coal quality, coal pulverizer is dry
The problem of undercapacity.
Detailed description of the invention
Fig. 1 is that system of the present invention applies the structural schematic diagram on boiler.
Specific embodiment
Specific embodiment 1: illustrating present embodiment referring to Fig.1, the slot type sun is utilized described in present embodiment
The system of energy conduction oil collection hot working fluid heating coal-fired boiler hot primary wind, comprising: groove type heat collector 1 and heat exchanger 4；
Groove type heat collector 1 is used in the heat collection to conduction oil of solar energy, and the conduction oil after collecting heat is for leading to
It crosses heat exchanger 4 and heat is exchanged to the heat primary air exported to coal-burning boiler air preheater 2.
Further, groove type heat collector 1 is located at the top of ground or workshop, the thermal conductivity hot oil outlet of groove type heat collector 1 with change
The hot heat conducting oil inlet of hot device 4 is connected to, and the cold conduction oil outlet of heat exchanger 4 is connected to the cold heat conducting oil inlet of groove type heat collector 1,
The air outlet of coal-burning boiler air preheater 2 is connected to the air intake vent of heat exchanger 4, the thermal conductivity hot oil outlet of groove type heat collector 1 with
The hot heat conducting oil inlet of heat exchanger 4 is connected to, and the cold conduction oil outlet of heat exchanger 4 and the cold heat conducting oil inlet of groove type heat collector 1 connect
Logical, the air outlet of coal-burning boiler air preheater 2 is connected to by heat primary air road 6 with the air intake vent of heat exchanger 4, heat exchanger 4
Air outlet is connected to the feeding inlet of coal pulverizer 5, and the heat primary air that heat exchanger 4 exports is as desiccant for coal to be dried.
In order to save the energy, additionally it is possible to the high temperature heat conductive oil after collecting solar energy heating using high-temperature heat-conductive oil tank 3, storage
The heating work that the high temperature heat conductive oil deposited can be used for when cloudy day or night.
Mixer is also in series on access between heat exchanger 4 and coal pulverizer 5, mixer is also connected to run coal bin, mixing
Case is used to mix the heat primary air after heating with raw coal.
In present embodiment, First air by primary air fan by First air pressure head promoted then by air preheater 2 with
The heat exchange of 7 tail portion exiting flue gas of boiler promotes wind-warm syndrome, then reaches heat exchanger 4 by heat primary air road 6 and high temperature heat conductive oil carries out
Heat exchange further promotes the temperature of heat primary air, makes up to design value.Become cold conduction oil after the heat exchange of thermal conductivity hot oil to be followed again
The groove type heat collector 1 that ring is pumped on roof is heated, and realization recycles.Heat primary air is re-used as the dry of pulverized coal preparation system
Drying prescription enters coal pulverizer 5 and mixes with coal dust, realizes that burning air distribution reaches comparatively ideal effect, coal dust is sent by burner later
Full combustion is carried out in boiler 7.Boiler can reach oepration at full load, the vapour moderate pressure of boiler export superheater and reheater
Reach design value, so that pushing turbine generates electricity.This system utilizes solar source, can store, be adjustable, be suitable for coal-fired pot
The demand of the various loads of furnace, enables coal-burning power plant's economical operation.
Claims (5)
1. utilizing the system of groove type solar conduction oil collection hot working fluid heating coal-fired boiler hot primary wind characterized by comprising
Groove type heat collector (1) and heat exchanger (4)；
Groove type heat collector (1) is used in the heat collection to conduction oil of solar energy, and the conduction oil after collecting heat is for passing through
Heat is exchanged the heat primary air exported to coal-burning boiler air preheater by heat exchanger (4).
2. according to claim 1 be using groove type solar conduction oil collection hot working fluid heating coal-fired boiler hot primary wind
System, which is characterized in that groove type heat collector (1) is located at the top of ground or workshop,
The thermal conductivity hot oil outlet of groove type heat collector (1) is connected to the hot heat conducting oil inlet of heat exchanger (4), cold the leading of heat exchanger (4)
Hot oil outlet is connected to the cold heat conducting oil inlet of groove type heat collector (1), the air outlet of coal-burning boiler air preheater (2) and heat exchange
The air intake vent of device (4) is connected to.
3. according to claim 2 be using groove type solar conduction oil collection hot working fluid heating coal-fired boiler hot primary wind
System, which is characterized in that the air outlet of heat exchanger (4) is connected to the feeding inlet of coal pulverizer (5), and the heat of heat exchanger (4) output is primary
Wind is as desiccant for coal to be dried.
4. according to claim 1,2 or 3 primary using groove type solar conduction oil collection hot working fluid heating coal-fired boiler hot
The system of wind, which is characterized in that further include high-temperature heat-conductive oil tank (3), high-temperature heat-conductive oil tank (3) adds for collecting solar energy
High temperature heat conductive oil after heat.
5. according to claim 3 be using groove type solar conduction oil collection hot working fluid heating coal-fired boiler hot primary wind
System, which is characterized in that mixer is in series on the access between heat exchanger (4) and coal pulverizer (5), mixer also connects with run coal bin
Logical, mixer is used to mix the heat primary air after heating with raw coal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910647349.7A CN110332718A (en) | 2019-07-17 | 2019-07-17 | Utilize the system of groove type solar conduction oil collection hot working fluid heating coal-fired boiler hot primary wind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910647349.7A CN110332718A (en) | 2019-07-17 | 2019-07-17 | Utilize the system of groove type solar conduction oil collection hot working fluid heating coal-fired boiler hot primary wind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110332718A true CN110332718A (en) | 2019-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910647349.7A Pending CN110332718A (en) | 2019-07-17 | 2019-07-17 | Utilize the system of groove type solar conduction oil collection hot working fluid heating coal-fired boiler hot primary wind |
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| Country | Link |
|---|---|
| CN (1) | CN110332718A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112304053A (en) * | 2020-10-28 | 2021-02-02 | 西安热工研究院有限公司 | Energy-saving system for pre-drying lignite through medium-low temperature solar thermal coupling |
| CN113464971A (en) * | 2021-08-12 | 2021-10-01 | 西安热工研究院有限公司 | Air preheating system of garbage incinerator |
| CN114659083A (en) * | 2022-03-28 | 2022-06-24 | 西安热工研究院有限公司 | Light and heat coupling high temperature air burning HTAC's coal fired boiler degree of depth peak shaving system |
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| CN202485020U (en) * | 2012-03-14 | 2012-10-10 | 山西省电力公司电力科学研究院 | Auxiliary air system of coal mill for coal burning boiler |
| CN204554865U (en) * | 2015-03-24 | 2015-08-12 | 东方电气集团东方锅炉股份有限公司 | A kind of system improving boiler using brown coal pulverized coal preparation system drying capacity |
| CN205518015U (en) * | 2016-04-18 | 2016-08-31 | 郑州良友科技有限公司 | Coal grinding apparatus containing ball mill |
| CN106678863A (en) * | 2016-12-07 | 2017-05-17 | 上海发电设备成套设计研究院 | Smoke water composite heating system and method for lignite-fired unit |
| CN107084102A (en) * | 2017-06-22 | 2017-08-22 | 哈尔滨锅炉厂有限责任公司 | It is a kind of using carbon dioxide as heat accumulation and do work working medium groove type solar solar-thermal generating system |
| CN107084103A (en) * | 2017-06-22 | 2017-08-22 | 哈尔滨锅炉厂有限责任公司 | It is a kind of using carbon dioxide as heat accumulation and do work working medium tower type solar solar-thermal generating system |
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2019
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Patent Citations (6)
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| CN202485020U (en) * | 2012-03-14 | 2012-10-10 | 山西省电力公司电力科学研究院 | Auxiliary air system of coal mill for coal burning boiler |
| CN204554865U (en) * | 2015-03-24 | 2015-08-12 | 东方电气集团东方锅炉股份有限公司 | A kind of system improving boiler using brown coal pulverized coal preparation system drying capacity |
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| CN106678863A (en) * | 2016-12-07 | 2017-05-17 | 上海发电设备成套设计研究院 | Smoke water composite heating system and method for lignite-fired unit |
| CN107084102A (en) * | 2017-06-22 | 2017-08-22 | 哈尔滨锅炉厂有限责任公司 | It is a kind of using carbon dioxide as heat accumulation and do work working medium groove type solar solar-thermal generating system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112304053A (en) * | 2020-10-28 | 2021-02-02 | 西安热工研究院有限公司 | Energy-saving system for pre-drying lignite through medium-low temperature solar thermal coupling |
| CN113464971A (en) * | 2021-08-12 | 2021-10-01 | 西安热工研究院有限公司 | Air preheating system of garbage incinerator |
| CN114659083A (en) * | 2022-03-28 | 2022-06-24 | 西安热工研究院有限公司 | Light and heat coupling high temperature air burning HTAC's coal fired boiler degree of depth peak shaving system |
| CN114659083B (en) * | 2022-03-28 | 2024-03-26 | 西安热工研究院有限公司 | Light-heat coupling high-temperature air combustion HTAC coal-fired boiler depth peak regulation system |
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Application publication date: 20191015 |
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