CN108167037A - A kind of method widened extracted steam from turbine and utilized - Google Patents
A kind of method widened extracted steam from turbine and utilized Download PDFInfo
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- CN108167037A CN108167037A CN201711159227.0A CN201711159227A CN108167037A CN 108167037 A CN108167037 A CN 108167037A CN 201711159227 A CN201711159227 A CN 201711159227A CN 108167037 A CN108167037 A CN 108167037A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000003245 coal Substances 0.000 claims abstract description 81
- 239000002817 coal dust Substances 0.000 claims abstract description 35
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000000605 extraction Methods 0.000 claims description 71
- 230000002209 hydrophobic effect Effects 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 abstract description 10
- 239000000843 powder Substances 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 235000008227 Illicium verum Nutrition 0.000 description 1
- 240000007232 Illicium verum Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 208000034158 bleeding Diseases 0.000 description 1
- 231100000319 bleeding Toxicity 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 moisture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The invention discloses a kind of method widened extracted steam from turbine and utilized, the extracted steam from turbine is high temperature heat source, and wind, powder and the water vapor mixture of coal pulverizer outlet are as low-temperature heat source, the low-temperature heat source and extracted steam from turbine heat exchange.The method of the present invention has widened the utilization of extracted steam from turbine, in the form of wind, powder and water vapor mixture carry heat, the thermal compositions of input boiler is made to change back to boiler the heat of extracted steam from turbine indirectly, instead of a part of fuel heat, so as to obtain heat economy benefit；Simultaneously because the wind of coal pulverizer, powder and water vapor mixture are heated, the drying capacity for being equivalent to pulverized coal preparation system is obviously improved, the combustion stability and coal dust burn-off rate of boiler are all improved, and boiler efficiency is also improved, and greatly improve adaptability of the boiler to coal.
Description
The application is the divisional application of following application：The applying date：On 08 16th, 2013；Application number：
201310360162.1；Denomination of invention " a kind of method widened extracted steam from turbine and utilized ".
Technical field
The present invention relates to extracted steam from turbine to utilize field, and in particular to a kind of method widened extracted steam from turbine and utilized.
Background technology
In modern thermal power plant, in order to improve unit heat economy, units consumption is reduced, is used without any exception
Extraction cycle that is, using the steam of making work(in steam turbine, is put heat recovery steam cooling by regenerative water heaters
Heat heats feedwater, so as to improving unit thermal efficiency of cycle, also, with the raising of unit parameter, the increase of capacity, backheat
Series is also being continuously increased, and backhaul degree also constantly improve, theoretically, if series tends to be infinite, backheat degree is most preferable, feedwater
Bleeder heater has the irreversible heat exchange loss of the work ability of the temperature difference to also tend to zero, but in fact, feedwater backheat heating series is
It is very limited.In this way, using medium water as the extraction cycle of backheat medium, since its utilization to steam extraction is confined to heat medium
It is waterborne, and backheat series is also limited, therefore its raising to efficiency is also limited.Therefore, if extracted steam from turbine can be widened
Using scope, then the energy-saving potential of power plant can be further excavated.
Still further aspect, after normal production and operation is entered, the practical coal of burning is often set with unit for existing power plant
It counts coal and deviates very big, the contents of the substances such as moisture, ash content and sulphur has very big difference with the variation of coal.And for
One has selected for the boiler of design coal, and the variation of coal has very big shadow to the operational efficiency and safety in operation of boiler
It rings, for the coal of some high-moistures, pulverized coal preparation system drying capacity does not catch up with the variation of coal moisture, coal pulverizer
Outlet powder temperature design requirement is not achieved, into boiler after will not only largely effect on boiler efficiency, the burning that can also influence boiler is steady
It is qualitative.
Invention content
The object of the present invention is to provide a kind of methods widened extracted steam from turbine and utilized, and have expanded backheat medium, have realized
More broadly extraction cycle improves unit economy, and improves adaptability of the boiler to coal.
To achieve the above object, the present invention provides a kind of method widened extracted steam from turbine and utilized, include the following steps：
Step 1, the coal dust intermixture that extracted steam from turbine is exported with coal pulverizer is exchanged heat.
Specifically, the method as described in claim 1, which is characterized in that be additionally included in the coal pulverizer before step 1 and go out
Heat exchanger is configured on mouthful.
Specifically, step 1 includes the following steps：Step 1.1：The extracted steam from turbine is input to the coal pulverizer outlet
On the heat exchanger, with the coal pulverizer outlet coal dust intermixture carry out heat exchange；Step 1.2：The coal dust intermixture
Through heat exchange, temperature is admitted to boiler combustion after getting a promotion, and the steam extraction forms hydrophobic or back-steam after heat release and returns to heating power
System.
Specifically, the coal dust intermixture of the coal pulverizer outlet exchanges heat with the extracted steam from turbine in the heat exchanger
Afterwards, the coal dust intermixture is sent into boiler-burner by one or more pulverized coal channel again, and the heat exchanger is one or more.
Specifically, the heat exchanger can also be arranged on one or more pulverized coal channel of the coal pulverizer outlet, often
The heat exchanger on the pulverized coal channel of road can be one or more.
Specifically, the steam extraction comes from steam turbine one or more levels steam extraction therein.
Specifically, in step 1.1, the steam extraction is level-one, and the heat exchanger is multiple, by steam extraction described in level-one successively
It inputs multiple heat exchangers or inputs multiple heat exchangers side by side.
Specifically, in step 1.1, the steam extraction is multistage, and the heat exchanger is multiple, and the multistage steam extraction is distinguished
Input multiple heat exchangers.
Specifically, in step 1.1, the steam extraction is multistage, and the heat exchanger, will wherein level-one steam extraction be successively to be multiple
Heat exchanger described in importation, remaining steam extraction input remaining described heat exchanger respectively.
Specifically, in step 1.1, the steam extraction is multistage, the heat exchanger to be multiple, will wherein level-one steam extraction it is arranged side by side
The multiple heat exchangers in importation, remaining grade of steam extraction input remaining multiple described heat exchanger respectively.
The present invention has the following advantages and effects：
The method of the present invention has widened the utilization scope of extracted steam from turbine, and heat is carried with wind, powder and water vapor mixture
Form, while being further heated and dry at it, the heat of extracted steam from turbine is made defeated in this way back to boiler indirectly
The thermal compositions for entering boiler change, instead of a part of fuel heat, so as to obtain heat economy benefit, and simultaneously because vapour
Turbine steam extraction obtains widening utilization, increases heat recovery steam amount, reduces cold source energy, improves the economy of device.
After method using the present invention, since the wind, powder and water vapor mixture of coal pulverizer are heated, it is equivalent to powder processed
The drying capacity of system is improved significantly, and the ignition point of coal dust shifts to an earlier date, and burning condition improves, combustion stability and coal dust after-flame
Rate is all improved, and boiler efficiency is also improved；Especially in low- load conditions, after method using the present invention, boiler
Combustion stability and coal dust burn-off rate will all be improved significantly.
Method using the present invention, applicable low oxygen combustion so as to reduce NOx generations and flue gas loss, reduce factory
Power consumption rate.
Method using the present invention is greatly improved adaptability of the boiler to coal, and the extension of coal accommodation will be big
The big operating cost for reducing power plant.
The technique effect of the design of the present invention, concrete structure and generation is described further below with reference to attached drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Description of the drawings
Fig. 1 is the principle of the present invention schematic diagram.
Fig. 2 is the schematic diagram of a specific embodiment of the invention.
Fig. 3 is the schematic diagram of another specific embodiment of the invention.
Fig. 4 is the schematic diagram of another specific embodiment of the invention.
Fig. 5 is the schematic diagram of another specific embodiment of the invention.
Fig. 6 is the schematic diagram of another specific embodiment of the invention.
Fig. 7 is the schematic diagram of another specific embodiment of the invention.
Specific embodiment
The present invention provides a kind of methods widened extracted steam from turbine and utilized, and include the following steps：Step 1, by steam turbine
The coal dust intermixture that steam extraction is exported with coal pulverizer exchanges heat.
Specifically, the method as described in claim 1, which is characterized in that be additionally included in the coal pulverizer before step 1 and go out
Heat exchanger is configured on mouthful.
Specifically, step 1 includes the following steps：Step 1.1：The extracted steam from turbine is input to the coal pulverizer outlet
On the heat exchanger, with the coal pulverizer outlet coal dust intermixture carry out heat exchange；Step 1.2：The coal dust intermixture
Through heat exchange, temperature is admitted to boiler combustion after getting a promotion, and the steam extraction forms hydrophobic or back-steam after heat release and returns to heating power
System.
Specifically, the coal dust intermixture of the coal pulverizer outlet exchanges heat with the extracted steam from turbine in the heat exchanger
Afterwards, the coal dust intermixture is sent into boiler-burner by one or more pulverized coal channel again, and the heat exchanger is one or more.
Specifically, the heat exchanger can also be arranged on one or more pulverized coal channel of the coal pulverizer outlet, often
The heat exchanger on the pulverized coal channel of road can be one or more.Specifically, the steam extraction comes from steam turbine level-one therein
Or more bleedings.
Specifically, in step 1.1, the steam extraction is level-one, and the heat exchanger is multiple, by steam extraction described in level-one successively
It inputs multiple heat exchangers or inputs multiple heat exchangers side by side.
Specifically, in step 1.1, the steam extraction is multistage, and the heat exchanger is multiple, and the multistage steam extraction is distinguished
Input multiple heat exchangers.
Specifically, in step 1.1, the steam extraction is multistage, and the heat exchanger, will wherein level-one steam extraction be successively to be multiple
Heat exchanger described in importation, remaining steam extraction input remaining described heat exchanger respectively.
Specifically, in step 1.1, the steam extraction is multistage, the heat exchanger to be multiple, will wherein level-one steam extraction it is arranged side by side
The multiple heat exchangers in importation, remaining grade of steam extraction input remaining multiple described heat exchanger respectively.
As shown in the figure, Fig. 1 is the principle of the present invention schematic diagram.Steam extraction from steam turbine is exported by being arranged in coal pulverizer
The coal dust intermixture that is exported to coal pulverizer of heat exchanger 1 heat, the raised coal dust intermixture of temperature enters boiler after heat absorption
Burning.So as to save thermal energy.On the other hand, steam extraction forms hydrophobic or back-steam after heat release, again returns in therrmodynamic system.
Fig. 2 is the schematic diagram of a specific embodiment of the invention.Steam extraction from steam turbine is gone out by being arranged in coal pulverizer
The coal dust intermixture that the heat exchanger 1 of mouth exports coal pulverizer heats, and the raised coal dust intermixture of temperature is along four after heat absorption
Road pulverized coal channel (it is noted that tetra- tunnels of the present embodiment Zhong are a virtual numbers, pulverized coal channel way can be multichannel, according to
The number that coal pulverizer corresponds to burner is different and different.Such as every layer of burner of single burner hearth quadrangle tangential circle mode is four, is used
Four road pulverized coal channels；For another example every layer of burner of twin furnace illiciumverum circle of contact mode is eight, then using eight road pulverized coal channels) into pot
Stove burns away.So as to save thermal energy.On the other hand, steam extraction forms hydrophobic or back-steam after heat release, back to therrmodynamic system
In.
Fig. 3 is the schematic diagram of another specific embodiment of the invention.It should be noted that it only illustrates to be sent into all the way in figure
On the pulverized coal channel of boiler, three heat exchangers are arranged.But the pulverized coal channel for sending boiler can be multichannel, per on the pulverized coal channel of road
It can also arrange one or more heat exchangers.
Successively by three heat exchangers on pulverized coal channel, steam extraction forms hydrophobic certain grade of steam extraction from unit after heat exchange
Or back-steam, therrmodynamic system is back to, and coal dust intermixture is heated successively by three heat exchangers, is then fed into boiler combustion.
Fig. 4 is the schematic diagram of another specific embodiment of the invention.It should be noted that it only illustrates to be sent into all the way in figure
On the pulverized coal channel of boiler, three heat exchangers are arranged.But the pulverized coal channel for sending boiler can be multichannel, per on the pulverized coal channel of road
It can also arrange one or more heat exchangers.
A grades from unit, b grades, three heat exchangers inputting respectively on pulverized coal channel of c grades of steam extractions add coal dust intermixture
Heat, steam extraction form hydrophobic or back-steam after heat release, are back to therrmodynamic system, and coal dust intermixture passes through steam extraction not at the same level by successively
Boiler combustion is sent into after heating.
Fig. 5 is the schematic diagram of another specific embodiment of the invention.It should be noted that it only illustrates to be sent into all the way in figure
On the pulverized coal channel of boiler, three heat exchangers are arranged.But the pulverized coal channel for sending boiler can be multichannel, per on the pulverized coal channel of road
It can also arrange one or more heat exchangers.
Two heat exchangers that a grade steam extractions from unit are sequentially input on pulverized coal channel heat coal dust intermixture, steam extraction
A grades after heat release are hydrophobic or back-steam is returned again to therrmodynamic system, and at the same time, b grades of steam extractions input another heat exchanger and add
Hot coal powder mixture, b grades of steam extractions form b grades of hydrophobic or back-steams after heat release, are back to therrmodynamic system, and pass through steam extraction not at the same level
Coal dust intermixture after being heated successively is then admitted to boiler combustion.
Fig. 6 is the schematic diagram of another specific embodiment of the invention.It should be noted that it only illustrates to be sent into all the way in figure
On the pulverized coal channel of boiler, three heat exchangers are arranged.But the pulverized coal channel for sending boiler can be multichannel, per on the pulverized coal channel of road
It can also arrange one or more heat exchangers.
Certain grade of steam extraction from unit, is divided into three tunnels, and three heat exchangers inputted side by side on pulverized coal channel mix coal dust
Object heats, and tri- tunnels of heat release Hou are hydrophobic or back-steam, remerge and are back to therrmodynamic system together, and pass through three tunnel steam extractions at the same level by according to
Coal dust intermixture after secondary heating is then admitted to boiler combustion.
Fig. 7 is the schematic diagram of another specific embodiment of the invention.It should be noted that it only illustrates to be sent into all the way in figure
On the pulverized coal channel of boiler, three heat exchangers are arranged.But the pulverized coal channel for sending boiler can be multichannel, per on the pulverized coal channel of road
It can also arrange one or more heat exchangers.
A grade steam extractions from unit heat coal dust intermixture by heat exchanger one of on pulverized coal channel, steam extraction
Hydrophobic or back-steam is formed after heat release, is back to therrmodynamic system；At the same time, b grades of steam extractions are then divided into two-way and input coal dust side by side
Other two heat exchanger on pipeline heats coal dust intermixture, the two-way that b grades of steam extractions are formed after heat release is hydrophobic or back-steam again
Merging is back to therrmodynamic system together, and by the two-stage steam extraction successively coal dust intermixture after three heat exchangers are heated then by
It is sent into boiler combustion.
The technology of the present invention is described in detail with the example of certain power plant's gigawatt unit.Boiler uses middling speed coal-grinding
Machine First air pressurized direct pulverizing coal system, Terms of Corner Tangential Combustion.
Dedicated heat exchanger is arranged on four road pulverized coal channels of coal pulverizer outlet, and steam is drawn from certain grade of steam extraction of unit,
Reallocate into the dedicated heat exchanger that four roads are entered on corresponding pulverized coal channel, wind, powder, water vapor mixture in heat exchanging device
After being heated, the hydrophobic oxygen-eliminating device for again returning to therrmodynamic system that steam extraction condenses into after heat release continues heating feedwater, at this time
Wind, powder, steam temperature in coal pulverizer outlet pulverized coal channel rise to 130 DEG C by original 75 DEG C, and steam extraction enters special heat exchange
After device, heat release simultaneously condenses into water, and temperature drops to 215 DEG C by 465 DEG C, and steam extraction amount is 2.51Kg/s.In this way, in coal dust intermixture
While being further heated and dry, the heat of steam extraction is admitted to boiler indirectly, reduces fuel quantity, is computed, only separate unit
Therefore the separate unit coal pulverizer of unit can economize on coal 1424 tons/year.Certainly, due to improving adaptability of the boiler to coal, this
The operating cost of power plant will be substantially reduced, do not calculated quantitatively here.
Several specific embodiments of the present invention described in detail above.According to pulverized coal channel way, the arrangement of heat exchanger
Number and heat exchanger capacity and connection mode, the steam extraction connection mode of various heat exchange device can have very more system connection sides
Formula, it should be understood that the present invention is directed to protect a kind of method widened extracted steam from turbine and utilized, by the profit for widening extracted steam from turbine
With, be applied to heating coal pulverizer outlet coal dust intermixture, so as to improve unit economy.Those of ordinary skill in the art without
Creative work is needed according to the present invention can to conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing method under this invention's idea
Technical solution, all should be in the protection domain being defined in the patent claims.
Claims (7)
1. a kind of method widened extracted steam from turbine and utilized, includes the following steps：
Heat exchanger is configured on one or more pulverized coal channel of coal pulverizer outlet, extracted steam from turbine is input to the heat exchange
Device exchanges heat with the coal dust intermixture of coal pulverizer outlet；The coal dust intermixture is sent through heat exchange after heating and drying
Enter boiler combustion, the steam extraction forms hydrophobic or back-steam after heat release and returns to therrmodynamic system；The coal dust of the coal pulverizer outlet mixes
After conjunction object exchanges heat with the extracted steam from turbine in the heat exchanger, the coal dust intermixture is again by one or more pulverized coal channel
It is sent into boiler-burner.
2. the method as described in claim 1, which is characterized in that the heat exchanger is one or more.
3. method as claimed in claim 1 or 2, which is characterized in that the steam extraction from steam turbine it is therein one or more levels
Steam extraction.
4. method as claimed in claim 3, which is characterized in that the steam extraction is level-one, and the heat exchanger is multiple, by level-one
The steam extraction sequentially inputs multiple heat exchangers or inputs multiple heat exchangers side by side.
5. method as claimed in claim 3, which is characterized in that the steam extraction is multistage, and the heat exchanger, will be multistage to be multiple
The steam extraction inputs multiple heat exchangers respectively.
6. method as claimed in claim 3, which is characterized in that the steam extraction is multistage, and the heat exchanger, will wherein to be multiple
Level-one steam extraction sequentially inputs the part heat exchanger, remaining steam extraction inputs remaining described heat exchanger respectively.
7. method as claimed in claim 3, which is characterized in that the steam extraction is multistage, and the heat exchanger, will wherein to be multiple
The multiple heat exchangers in level-one steam extraction importation arranged side by side, remaining grade of steam extraction input remaining multiple described heat exchanger respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711159227.0A CN108167037A (en) | 2013-08-16 | 2013-08-16 | A kind of method widened extracted steam from turbine and utilized |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310360162.1A CN104373163A (en) | 2013-08-16 | 2013-08-16 | A Method of Widening the Utilization of Steam Turbine Extraction |
| CN201711159227.0A CN108167037A (en) | 2013-08-16 | 2013-08-16 | A kind of method widened extracted steam from turbine and utilized |
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| CN201310360162.1A Division CN104373163A (en) | 2013-08-16 | 2013-08-16 | A Method of Widening the Utilization of Steam Turbine Extraction |
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| CN201310360162.1A Pending CN104373163A (en) | 2013-08-16 | 2013-08-16 | A Method of Widening the Utilization of Steam Turbine Extraction |
| CN201711159227.0A Pending CN108167037A (en) | 2013-08-16 | 2013-08-16 | A kind of method widened extracted steam from turbine and utilized |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388637A (en) * | 2019-07-01 | 2019-10-29 | 上海发电设备成套设计研究院有限责任公司 | An energy-saving boiler ultra-low load stable combustion system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107559059A (en) * | 2017-09-29 | 2018-01-09 | 西安热工研究院有限公司 | A kind of drawn gas using low-pressure stage of steam turbine heats raw coal electricity generation system |
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|---|---|---|---|---|
| DE3433313A1 (en) * | 1984-09-11 | 1986-03-20 | Rudolf Dr. 6800 Mannheim Wieser | Integrated coal-drying device for steam boilers or fluidised-bed furnaces |
| CN102191956A (en) * | 2010-03-04 | 2011-09-21 | 天华化工机械及自动化研究设计院 | Method for reducing coal consumption of coal fired power plant by arranging steam pipe type drying system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4297078A (en) * | 1978-02-10 | 1979-08-16 | Monash University | Power generation system |
| DE4404297A1 (en) * | 1994-02-11 | 1995-08-24 | Rheinische Braunkohlenw Ag | Power generation process for power stations |
| DE10319477B4 (en) * | 2003-04-29 | 2006-11-23 | Rwe Power Ag | Method for operating a steam turbine power plant and device for generating steam |
| CN201446075U (en) * | 2009-06-29 | 2010-05-05 | 罗锦江 | Screen furnace with coal dust treatment device |
| CN201568959U (en) * | 2009-10-31 | 2010-09-01 | 无锡华光工业锅炉有限公司 | Coking prevention device of gas-solid separator of circulating fluidized bed boiler |
| JP5509024B2 (en) * | 2010-10-12 | 2014-06-04 | 月島機械株式会社 | Coal drying apparatus and coal drying method |
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- 2013-08-16 CN CN201310360162.1A patent/CN104373163A/en active Pending
- 2013-08-16 CN CN201711159227.0A patent/CN108167037A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3433313A1 (en) * | 1984-09-11 | 1986-03-20 | Rudolf Dr. 6800 Mannheim Wieser | Integrated coal-drying device for steam boilers or fluidised-bed furnaces |
| CN102191956A (en) * | 2010-03-04 | 2011-09-21 | 天华化工机械及自动化研究设计院 | Method for reducing coal consumption of coal fired power plant by arranging steam pipe type drying system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388637A (en) * | 2019-07-01 | 2019-10-29 | 上海发电设备成套设计研究院有限责任公司 | An energy-saving boiler ultra-low load stable combustion system |
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| CN104373163A (en) | 2015-02-25 |
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Application publication date: 20180615 |