CN208186298U - The direct-coupling electricity generation system that biomass and flue gas in power station boiler Multidimensional Comprehensive utilize - Google Patents
The direct-coupling electricity generation system that biomass and flue gas in power station boiler Multidimensional Comprehensive utilize Download PDFInfo
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- CN208186298U CN208186298U CN201820553409.XU CN201820553409U CN208186298U CN 208186298 U CN208186298 U CN 208186298U CN 201820553409 U CN201820553409 U CN 201820553409U CN 208186298 U CN208186298 U CN 208186298U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The direct-coupling electricity generation system that biomass and flue gas in power station boiler Multidimensional Comprehensive utilize, the utility model are lower in order to solve the problems, such as flue gas waste heat at the end of boiler utilization rate.Biomass fuel drying equipment in the electricity generation system, crushing device and feed bin are sequentially connected by transfer pipeline, one end of gas bypass is connected with the feed inlet of boiler, the other end of gas bypass is connected with boiler exhaust gas extraction conduit, the discharge port of feed bin is connected by marker pipe with gas bypass, the outlet flue of boiler is connected with deduster, deduster is connected with chimney, one end of boiler exhaust gas extraction conduit is connected with chimney smoke-intake pipe road, the other end of boiler exhaust gas extraction conduit is connected with biomass fuel drying equipment, one end of fuel Pneumatic conveying pipeline is connected with boiler, the other end of fuel Pneumatic conveying pipeline is connected with boiler exhaust gas extraction conduit.The utility model utilizes residual heat from boiler fume, provides drying source for biomass fuel, the operating cost of drying equipment is effectively reduced.
Description
Technical field
The utility model relates to the coupled electricity-generation systems of a kind of biomass and flue gas in power station boiler comprehensive utilization.
Background technique
Biomass and station boiler direct-coupling generation technology be it is a kind of by biomass fuel through it is broken, dry after pass through combustion
It burns equipment and enters the technology that power boiler burning utilizes, which can be realized by existing boiler improvement, few with equipment investment,
The advantages that biomass power generation is high-efficient, fuel matching is flexible.It is domestic at present only have ten Li Quan power plant introduction of foreign technology of Shandong into
It has gone project transformation, fuel moisture has only been controlled by way of natural drying, and using boiler fan surplus as biomass
Fuel pumped (conveying) medium.
The moisture content fluctuation of biomass fuel such as agricultural crop straw can reach 15%~50% range, and biomass fuel
Collection have apparent seasonal, it is unfavorable that the excessively high operation and power output by biomass crushing plant of biofuel moisture content causes
It influences, while reducing fuel value, contained humidity, which enters after boiler, can also cause boiler smoke tolerance to increase, exhaust gas temperature increases etc.
Adverse effect.Stalk amount can be consumed more than tons up to a hundred for 600MW grade pulverized-coal fired boiler daily, only pass through natural drying
Mode is difficult to ensure sufficient low-water-content biomass fuel supply.
Biomass fuel ingredient and the characteristic difference of combustion characteristics and coal are larger, and general biomass fuel is at 200~300 DEG C
When just have Volatile, first and second wind-warm syndrome of station boiler, cannot be directly as biomass fuel at 300 DEG C or more
Pneumatic conveying medium.
Utility model content
Purpose of the utility model is to solve existing biomass fuel drying efficiency is lower, flue gas waste heat at the end of boiler
The lower problem of utilization rate provides a kind of direct-coupling electricity generation system that biomass is utilized with flue gas in power station boiler Multidimensional Comprehensive.
The direct-coupling electricity generation system that the utility model biomass and flue gas in power station boiler Multidimensional Comprehensive utilize includes biology
Matter fuel dryer equipment, crushing device, feed bin, boiler, deduster and chimney, biomass fuel drying equipment pass through the first conveying
Pipeline is connected with the feed inlet of crushing device, and the discharge port of crushing device passes through the feed inlet phase of the second transfer pipeline and feed bin
Even；
One end of gas bypass is connected with the feed inlet of boiler, the other end and the boiler exhaust gas extraction conduit phase of gas bypass
Connection, is provided with booster fan, the discharge port of feed bin is connected by marker pipe with gas bypass, boiler on gas bypass
Outlet flue be connected by smoke pipeline with the import of deduster, the outlet of deduster passes through chimney smoke-intake pipe road and chimney
Smoke inlet is connected, and is provided with boiler induced-draft fan on chimney smoke-intake pipe road, and one end of boiler exhaust gas extraction conduit and chimney are into cigarette
Pipeline is connected, and the other end of boiler exhaust gas extraction conduit is connected with the gas inlet of biomass fuel drying equipment, fuel
One end of Pneumatic conveying pipeline is connected with the flue gas recirculation mouth of boiler, and the other end and boiler exhaust gas of fuel Pneumatic conveying pipeline are taken out
Take pipeline to be connected, one end of lack of gas pipeline is connected on the exhanst gas outlet of biomass fuel drying equipment, lack of gas pipeline it is another
One end and smoke pipeline connection.
The present invention utilizes residual heat from boiler fume, provides sufficient, cheap drying source for biomass fuel, is effectively reduced dry
The operating cost of dry equipment reduces Boiler Mixed Burning biomass fuel moisture content, avoids biomass fuel to crushing plant and pot
Furnace performance adversely affects.
Mixed proportion by adjusting boiler tail flue gas extraction amount and burner hearth high-temperature flue gas can be effectively reduced biomass
Water-in-fuel rate, simultaneously as the low rate of oxygen of flue gas avoids the generation of fire hazard, then the drying that will carry moisture and dust
Flue gas sends boiler flue gas treatment system back to again, has purified dry flue gas.
It can be recycled more than tail flue gas using boiler tail flue gas as broken biomass fuel strength pumped (conveying) medium
Heat, while air-transport system being avoided to catch fire；There can also be certain influence on Steam Temperature for Boiler by adjusting flue gas recirculation amount, increase
The means of Steam Temperature for Boiler regulation, gas bypass are arranged booster fan, overcome biomass fuel transportation system pipe resistance.
Negative pressure in fume extraction pipeline and lack of gas transfer pipeline is controlled, prevents flue gas from revealing.
Detailed description of the invention
Fig. 1 is the knot for the direct-coupling electricity generation system that the utility model biomass and flue gas in power station boiler Multidimensional Comprehensive utilize
Structure schematic diagram.
Specific embodiment
Specific embodiment 1: the direct-coupling that present embodiment biomass and flue gas in power station boiler Multidimensional Comprehensive utilize is sent out
Electric system includes biomass fuel drying equipment 1, crushing device 2, feed bin 3, boiler 4, deduster 5 and chimney 7, biomass fuel
Drying equipment 1 is connected by the first transfer pipeline with the feed inlet of crushing device 2, and the discharge port of crushing device 2 is defeated by second
Pipeline and the feed inlet of feed bin 3 is sent to be connected；
One end of gas bypass 14 is connected with the feed inlet of boiler 4, and the other end and boiler exhaust gas of gas bypass 14 extract
Pipeline 13 is connected, and booster fan 9 is provided on gas bypass 14, and the discharge port of feed bin 3 passes through marker pipe 19 and flue gas
Bypass 14 is connected, and the outlet flue of boiler 4 is connected by smoke pipeline 17 with the import of deduster 5, and the outlet of deduster 5 is logical
It crosses chimney smoke-intake pipe road 18 to be connected with the smoke inlet of chimney 7, is provided with boiler induced-draft fan 6, boiler on chimney smoke-intake pipe road 18
One end of smoke evacuation extraction conduit 13 is connected with chimney smoke-intake pipe road 18, the other end and biomass of boiler exhaust gas extraction conduit 13
The gas inlet of fuel dryer equipment 1 is connected, one end of fuel Pneumatic conveying pipeline 15 and the flue gas recirculation mouth phase of boiler 4
Even, the other end of fuel Pneumatic conveying pipeline 15 is connected with boiler exhaust gas extraction conduit 13, one end connection of lack of gas pipeline 16
Onto the exhanst gas outlet of biomass fuel drying equipment 1, the other end of lack of gas pipeline 16 is connected to smoke pipeline 17.
Present embodiment combination boiler of power plant process route proposes a kind of biomass and flue gas in power station boiler Multidimensional Comprehensive
The direct-coupling electricity generation system utilized provides sufficient and cheap drying source for biomass fuel, reduces drying equipment operation
Cost；Pneumatic conveying medium is provided for biomass fuel, guarantees the safe operation of fuel delivery system；Steam Temperature for Boiler is provided simultaneously
The means of adjusting improve boiler efficiency.
Specific embodiment 2: the present embodiment is different from the first embodiment in that qualified moisture fuel Belt Conveying
System 12 is directly connected with the feed inlet of crushing device 2.
The biomass fuel of moisture qualification is sent directly by present embodiment by qualified moisture fuel belt conveyor system
Crushing device.
Specific embodiment 3: the present embodiment is different from the first and the second embodiment in that being set on lack of gas pipeline 16
It is equipped with the first air-introduced machine 10.
Specific embodiment 4: in fuel pneumatic transporting unlike one of present embodiment and specific embodiment one to three
It send and is provided with valve and meter detection equipment 8 on pipeline 15.
Present embodiment monitors the parameters such as temperature, pressure and the flow of boiler extraction flue gas by meter detection equipment.
Specific embodiment 5: being taken out unlike one of present embodiment and specific embodiment one to four in boiler exhaust gas
It takes and is respectively arranged with valve and meter detection equipment 8 on pipeline 13 and gas bypass 14.
Embodiment: the direct-coupling electricity generation system that the present embodiment biomass is utilized with flue gas in power station boiler Multidimensional Comprehensive includes
Biomass fuel drying equipment 1, crushing device 2, feed bin 3, boiler 4, deduster 5 and chimney 7, high moisture fuel Belt Conveying system
System 11 and qualified moisture fuel belt conveyor system 12 are connected with the feed inlet of biomass fuel drying equipment 1 respectively, biomass
Fuel dryer equipment 1 is connected by the first transfer pipeline with the feed inlet of crushing device 2, and the discharge port of crushing device 2 passes through the
Two transfer pipelines are connected with the feed inlet of feed bin 3；
One end of gas bypass 14 is connected with the feed inlet of boiler 4, and the other end and boiler exhaust gas of gas bypass 14 extract
Pipeline 13 is connected, and booster fan 9 is provided on gas bypass 14, and the discharge port of feed bin 3 passes through marker pipe 19 and flue gas
Bypass 14 is connected, and the outlet flue of boiler 4 is connected by smoke pipeline 17 with the import of deduster 5, and the outlet of deduster 5 is logical
It crosses chimney smoke-intake pipe road 18 to be connected with the smoke inlet of chimney 7, is provided with boiler induced-draft fan 6, boiler on chimney smoke-intake pipe road 18
One end of smoke evacuation extraction conduit 13 is connected with chimney smoke-intake pipe road 18, the other end and biomass of boiler exhaust gas extraction conduit 13
The gas inlet of fuel dryer equipment 1 is connected, one end of fuel Pneumatic conveying pipeline 15 and the flue gas recirculation mouth phase of boiler 4
Even, the other end of fuel Pneumatic conveying pipeline 15 is connected with boiler exhaust gas extraction conduit 13, one end connection of lack of gas pipeline 16
Onto the exhanst gas outlet of biomass fuel drying equipment 1, the other end of lack of gas pipeline 16 is connected to smoke pipeline 17, in blast pipe
The first air-introduced machine 10 is provided on road 16.
The present embodiment is in boiler exhaust gas extraction conduit 13, gas bypass 14, fuel Pneumatic conveying pipeline 15 and lack of gas pipeline
Valve and meter detection equipment 8 are respectively arranged on 16.Booster fan 9 is located at by flue gas conveying direction marker pipe 19 and flue gas
The front of 14 node of road.
The present embodiment biomass fuel drying equipment heat source is discharged fume quoted from boiler tail and the mixing cigarette of furnace high-temperature flue gas
Gas, dry flue gas use flue gas recirculation form, and 100 DEG C or so of low-temperature flue gas is drawn after air-introduced machine, 400 DEG C or so of height
Warm flue gas is drawn in boiler back end ductwork, and the flow and temperature of mixed flue gas are adjusted according to biomass dry amount and moisture content
Whole, the lack of gas of moisture content and dust are re-fed into boiler exhaust gas system by newly-increased air-introduced machine after drying, at boiler smoke
Reason system is purified.
Gas bypass is set in fume extraction pipeline, extension flue gas is conveyed as broken biomass fuel to be situated between
Biomass fuel is sent into boiler combustion and utilized by matter, and booster fan is arranged in gas bypass, overcomes fuel pump deliver line resistance.
Using two sets of biomass fuel transportation systems, moisture proper fuel is sent directly into crushing device, and moisture content is high
The biomass fuel of (Mar > 20%) is re-fed into crushing device after being first sent into drying equipment.
Claims (5)
1. the direct-coupling electricity generation system that biomass and flue gas in power station boiler Multidimensional Comprehensive utilize, it is characterised in that the biomass with
The direct-coupling electricity generation system that flue gas in power station boiler Multidimensional Comprehensive utilizes includes biomass fuel drying equipment (1), crushing device
(2), feed bin (3), boiler (4), deduster (5) and chimney (7), biomass fuel drying equipment (1) pass through the first transfer pipeline
It is connected with the feed inlet of crushing device (2), the discharge port of crushing device (2) passes through the charging of the second transfer pipeline and feed bin (3)
Mouth is connected；
One end of gas bypass (14) is connected with the feed inlet of boiler (4), and the other end and boiler exhaust gas of gas bypass (14) are taken out
It takes pipeline (13) to be connected, is provided on gas bypass (14) booster fan (9), the discharge port of feed bin (3) passes through drainage conduit
Road (19) is connected with gas bypass (14), and the outlet flue of boiler (4) passes through the import phase of smoke pipeline (17) and deduster (5)
The outlet of connection, deduster (5) is connected by chimney smoke-intake pipe road (18) with the smoke inlet of chimney (7), on chimney smoke-intake pipe road
(18) it being provided on boiler induced-draft fan (6), one end of boiler exhaust gas extraction conduit (13) is connected with chimney smoke-intake pipe road (18),
The other end of boiler exhaust gas extraction conduit (13) is connected with the gas inlet of biomass fuel drying equipment (1), fuel strength
One end of conveyance conduit (15) is connected with the flue gas recirculation mouth of boiler (4), the other end and pot of fuel Pneumatic conveying pipeline (15)
Fire grate cigarette extraction conduit (13) is connected, and one end of lack of gas pipeline (16) is connected to the flue gas of biomass fuel drying equipment (1)
In outlet, the other end of lack of gas pipeline (16) is connected to smoke pipeline (17).
2. the direct-coupling electricity generation system that biomass according to claim 1 and flue gas in power station boiler Multidimensional Comprehensive utilize,
It is characterized in that qualified moisture fuel belt conveyor system (12) is directly connected with the feed inlet of crushing device (2).
3. the direct-coupling electricity generation system that biomass according to claim 1 and flue gas in power station boiler Multidimensional Comprehensive utilize,
It is characterized in that being provided with the first air-introduced machine (10) on lack of gas pipeline (16).
4. the direct-coupling electricity generation system that biomass according to claim 1 and flue gas in power station boiler Multidimensional Comprehensive utilize,
It is characterized in that being provided with valve and meter detection equipment (8) on fuel Pneumatic conveying pipeline (15).
5. the direct-coupling electricity generation system that biomass according to claim 1 and flue gas in power station boiler Multidimensional Comprehensive utilize,
It is characterized in that being respectively arranged with valve and meter detection equipment in boiler exhaust gas extraction conduit (13) and gas bypass (14)
(8)。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820553409.XU CN208186298U (en) | 2018-04-18 | 2018-04-18 | The direct-coupling electricity generation system that biomass and flue gas in power station boiler Multidimensional Comprehensive utilize |
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|---|---|---|---|
| CN201820553409.XU CN208186298U (en) | 2018-04-18 | 2018-04-18 | The direct-coupling electricity generation system that biomass and flue gas in power station boiler Multidimensional Comprehensive utilize |
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| CN208186298U true CN208186298U (en) | 2018-12-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998379A (en) * | 2020-08-25 | 2020-11-27 | 吉林工商学院 | Bulk material supply system of biomass straw bulk combustion hot blast stove |
| CN112902146A (en) * | 2021-03-05 | 2021-06-04 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | Pulverized coal boiler direct-fired biomass system and blending combustion method |
| CN113273335A (en) * | 2021-05-31 | 2021-08-20 | 中国天楹股份有限公司 | Movable integrated biomass straw comprehensive utilization device |
| CN113446618A (en) * | 2021-07-28 | 2021-09-28 | 西安热工研究院有限公司 | Direct-fired coupling power generation system and method for conveying biomass by boiler smoke of coal-fired power station |
-
2018
- 2018-04-18 CN CN201820553409.XU patent/CN208186298U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998379A (en) * | 2020-08-25 | 2020-11-27 | 吉林工商学院 | Bulk material supply system of biomass straw bulk combustion hot blast stove |
| CN112902146A (en) * | 2021-03-05 | 2021-06-04 | 中国大唐集团科学技术研究院有限公司华中电力试验研究院 | Pulverized coal boiler direct-fired biomass system and blending combustion method |
| CN112902146B (en) * | 2021-03-05 | 2023-12-19 | 内蒙古大唐国际锡林浩特发电有限责任公司 | Direct-fired biomass system and blending combustion method for pulverized coal boiler |
| CN113273335A (en) * | 2021-05-31 | 2021-08-20 | 中国天楹股份有限公司 | Movable integrated biomass straw comprehensive utilization device |
| CN113273335B (en) * | 2021-05-31 | 2022-04-29 | 中国天楹股份有限公司 | Movable integrated biomass straw comprehensive utilization device |
| WO2022252492A1 (en) * | 2021-05-31 | 2022-12-08 | 中国天楹股份有限公司 | Mobile integrated biomass straw comprehensive utilization device |
| CN113446618A (en) * | 2021-07-28 | 2021-09-28 | 西安热工研究院有限公司 | Direct-fired coupling power generation system and method for conveying biomass by boiler smoke of coal-fired power station |
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