CN110345633A - A kind of biomass gasification system and method that can provide domestic hot-water and have both heating function - Google Patents
A kind of biomass gasification system and method that can provide domestic hot-water and have both heating function Download PDFInfo
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- CN110345633A CN110345633A CN201910574981.3A CN201910574981A CN110345633A CN 110345633 A CN110345633 A CN 110345633A CN 201910574981 A CN201910574981 A CN 201910574981A CN 110345633 A CN110345633 A CN 110345633A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/06—Continuous processes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
- C10J3/34—Grates; Mechanical ash-removing devices
- C10J3/36—Fixed grates
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B90/00—Combustion methods not related to a particular type of apparatus
- F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
- F23B90/06—Combustion methods not related to a particular type of apparatus including secondary combustion the primary combustion being a gasification or pyrolysis in a reductive atmosphere
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/48—Water heaters for central heating incorporating heaters for domestic water
- F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1845—Arrangement or mounting of combustion heating means, e.g. grates or burners using solid fuel
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0916—Biomass
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Solid-Fuel Combustion (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
A kind of biomass gasification system and method that can provide domestic hot-water and have both heating function of the present invention, the system comprises biomass gasification device, burner and heat-exchanger rig；Biomass gasification device includes two and half gasification installations and two cyclone separators；The gas outlet of half gasification installation connects one to one the separator inlet of cyclone separator；The burner above biomass gasification device, including combustion chamber and with scalable burning torch is arranged in burner；Burner connection is arranged in combustion chamber lower part, and scalable burning torch can extend into combustion chamber；The gas supply end of burner connects the air supply opening of two cyclone separators；Level-one heat exchanger plates are provided in combustion chamber；The side of biomass gasification device and burner, the exhanst gas outlet of the hot side inlet connection combustion chamber of heat-exchanger rig is arranged in heat-exchanger rig；Secondary heat exchange plate is set inside heat-exchanger rig；The recirculated water of domestic hot-water and heating pipeline successively uses after level-one heat exchanger plates and the heat absorption of secondary heat exchange plate.
Description
Technical field
The present invention relates to biomass economy field, specially a kind of biomass that can provide domestic hot-water and have both heating function
Gasification system and method.
Background technique
China's biomass resource is quite abundant, the agricultural wastes that can be used every year and forestry residue it is total
Amount is about the 33% of China's non-renewable energy total amount, is the second largest energy for being only second to coal.Therefore, for China's oil, natural gas
The status of shortage of resources increases on the basis of existing gasification, and combustion technology to life in conjunction with the development strategy of China's energy resource structure
The research and utilization of substance energy, can not only make up the deficiency of fossil fuel, reduce pollutant emission, but also can make China
Rural area obtains economic benefit while protecting ecology, realizes the reasonable utilization in soil, improves the ability of national sustainable development,
To maintenance energy security, China's power self-support rate is kept, improves energy resource structure and plays a significant role.But currently, the heat of biomass
During conversion, most conventional Land use systems are exactly that it directly burns or carries out multifuel combustion with exotic fuels such as coals,
To obtain its heat.Technical aspect is utilized in the burning of biomass, although equally including big in the chemical composition of biomass
The hydrocarbon of amount, and and coal there is similarity on fuel characteristic, but there are still following different characteristics:
(1) zero-emission during biomass combustion；
(2) S in biomass material, N content are lower, and ash content is less, and moisture is higher, and calorific value is lower；
(3) biomass material is from a wealth of sources, and distribution relatively dissipates, collection, transport and pretreated higher cost.
There are still following problems for biomass combustion:
(1) biomass moisture itself and soil are more, and especially the root of agricultural wastes and end of blade have a large amount of dust
And soil, bundle, which is burnt, has directly cut off this two parts, has left behind bar portion, utilization rate is low.
(2) existing biomass directly burns to utilize is applied to large-scale centrally connected power supply more, biomass collection transport difficult,
Cost of electricity-generating is high.
(3) biomass stack bundle is powered, and the various processing costs such as drying early period are higher.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of life that can provide domestic hot-water and have both heating function
Gasification substance system and method, which has a compact structure and a reasonable design, biomass are burnt in batches, direct gasification, while providing domestic hot-water
With the function of heating.
The present invention is to be achieved through the following technical solutions:
A kind of biomass gasification system that can provide domestic hot-water and have both heating function, including biomass gasification device, combustion
Burn device and heat-exchanger rig；
The biomass gasification device includes two and half gasification installations and two cyclone separators；Half gasification installation goes out
Port connects one to one the separator inlet of cyclone separator；
The burner is arranged above biomass gasification device comprising combustion chamber and has scalable burning torch
Burner；Burner connection is arranged in combustion chamber lower part, and scalable burning torch can extend into combustion chamber；The confession of burner
Gas end connects the air supply opening of two cyclone separators；It is provided with level-one heat exchanger plates in combustion chamber, absorbs combustion for level-one heat exchanger plates
The amount of heating；
The side of biomass gasification device and burner, the hot side inlet of heat-exchanger rig is arranged in the heat-exchanger rig
Connect the exhanst gas outlet of combustion chamber；Secondary heat exchange plate is set inside heat-exchanger rig, absorbs flue gas heat for secondary heat exchange plate；
The recirculated water of domestic hot-water and heating pipeline successively uses after level-one heat exchanger plates and the heat absorption of secondary heat exchange plate.
Preferably, netted fire grate there are three setting in half gasification installation, is orderly used to is put into biomass from bottom to up
Leaf, root, bar；Fire grate is corresponded on the gasification furnace wall of gasification furnace equipped with feeding port, is placed with air outlet under fire grate；Half gasification dress
Top setting gas outlet is set, lower end is provided with slag-drip opening.
Preferably, the cyclone separator includes separable cartridge, the separator inlet of separable cartridge side setting, lower end
The bulky grain of setting exports, the central tube that top is set, and the wall surface of separator inlet and separable cartridge is at 8~10 °；Two whirlwind point
Central tube from device connects gas collecting tube, gas supply end of the gas collecting tube as air supply opening connection burner through connecting pipe respectively.
Further, two and half gasification installations and two cyclone separators are set with the rotation that is centrosymmetric of 35 axis of gas collecting tube
It sets, the gas supply end rotatory sealing connection of gas collecting tube and burner.
It further, further include system shell, system shell and the tangent part setting of half gasification installation rotational trajectory are useful
In the feed opening of half gasification installation.
Preferably, the burner include outlet side with the air distribution pipeline of combustion chamber；The air distribution pipeline packet
Include gasification exhaust gases passes, and around the natural gas channel that gasification exhaust gases passes are set gradually and air exhaust gases passes；
The exhaust gases passes that gasify connect the air supply opening of two cyclone separators, the scalable igniting of setting in gasification exhaust gases passes
Rifle；
Natural gas channel connects natural gas line, and the outlet side in natural gas channel is provided with regulating valve；
Air exhaust gases passes connect air pipeline, air the outlet sides of exhaust gases passes be provided with bluff body；Air flue gas it is logical
It is provided with the flue gas injection channel with combustion chamber on road, forms flue gas recirculation for partial fume in injection combustion chamber.
Preferably, it is arranged concentrically circumferential wave card in the combustion chamber and the circular needle wing as level-one heat exchanger plates changes
Hot plate；The upper end closed of circular needle wing heat exchanger plates, inside and outside it is U-shaped with circumferential wave card and sidewall of combustion chamber Formation cross-section
Heat exchange runner；The combustion zone of heat exchange runner input end and combustion chamber between circular needle wing heat exchanger plates and circumferential wave card connects
Logical, the outlet end between circular needle wing heat exchanger plates and sidewall of combustion chamber is connected to the exhanst gas outlet of combustion chamber.
Preferably, the heat-exchanger rig includes sequentially connected compact heat exchanger, demister and chimney；
The compact heat exchanger includes the heat exchanger plates that multiple compact Layouts are in labyrinth type heat exchanging channel, heat exchanger plates conduct
Secondary heat exchange plate；Heat exchanger channels end connects demister, and demister end connects chimney through blower.
Preferably, further include biomass gasification device and heat-exchanger rig lower end be set rush ash-pit；Half gasification installation
The condensate outlet of solid waste outlet, the solid waste outlet of cyclone separator and heat-exchanger rig connects with ash-pit is rushed
It is logical, and water seal is carried out by rushing the water contained in ash-pit；The water pump for being separately provided for disposing waste liquid and dosing dress are rushed on ash-pit
It sets.
A kind of biomass gasification method that can provide domestic hot-water and have both heating function, based on described in above-mentioned any one
Biomass gasification system includes the following steps,
Step 1, biomass gasifies in two and half gasification installations, obtains gasifying gas；
Step 2, the gasifying gas obtained is passed into after collecting premixed in burner after, low nitrogen combustion in the combustion chamber
It burns, generates high-temperature flue gas；
Step 3, the secondary heat exchange plate that high-temperature flue gas flows through in burn indoor level-one heat exchanger plates and heat-exchanger rig is inhaled
Recuperation of heat is discharged after utilizing；
Step 4, the recirculated water of domestic hot-water and heating pipeline successively by level-one heat exchanger plates and secondary heat exchange plate heat absorption after
Domestic hot-water is provided and carries out heating.
Compared with prior art, the invention has the following beneficial technical effects:
Whole system of the present invention be biomass gasification device, the modularization assembling of burner and heat-exchanger rig,
It is attached by gas passage, convenient disassembly, while rationally carrying out reasonable Arrangement, greatly reduce volume, Miniaturizable
As household, meet different load demand, the function of domestic hot-water and heating can be provided simultaneously；In biomass gasification device
Gasification directly is conducted batch-wise by the cyclone separator of two and half gasification installations and cooperation in biomass, utilizes band Telescopic igniting gun
The burner of premix realize low nitrogen burning, using in burner level-one heat exchanger plates and the second level that is arranged in heat-exchanger rig change
Hot plate carries out enhanced heat exchange, realizes hot water heating, meets the big heat demand of heating；Existing pipe can be passed through in system-based
The switching on road realizes that heating and hot-water heating system can automatically switch, and can replace existing natural gas wall-hung boiler.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of biomass gasification system described in present example.
Fig. 2 is the sectional view of vaporizer part described in present example.
Fig. 3 is the structural schematic diagram of cyclone separator described in present example.
Fig. 4 is the structural schematic diagram of the burner described in present example with Telescopic igniting gun.
Fig. 5 is the sectional view of combustion chamber described in present example.
In figure: 1, air outlet；2, water pump；3, feeding port；4, half gasification installation；5, fire grate；6, separable cartridge；7, bulky grain
Outlet；8, cyclone separator；9, compact heat exchanger；10, heat exchanger plates；11, ash-pit is rushed；12, heat exchanger channels；13, air/smoke
Pipeline；14, natural gas line；15, circular needle wing heat exchanger plates；16, circumferential wave card；17, flue gas injection channel；18, burner；
19, scalable burning torch；20, central tube；21, combustion chamber；22, condensing water inlet；23, chemicals dosing plant；24, gasification flue gas is logical
Road；25, natural gas channel；26, air exhaust gases passes；27, bluff body；28, regulating valve；29, connecting pipe；30, demister；31,
Separator inlet；32, gasification furnace wall；33, chimney；34, blower；35, gas collecting tube.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
A kind of biomass gasification system that can provide domestic hot-water and have both heating function of the present invention, including biogas makeup
It sets, burner and heat-exchanger rig；
The biomass gasification device includes two and half gasification installations 4 and two cyclone separators 8；Half gasification installation 4
Gas outlet connect one to one the separator inlet 31 of cyclone separator 8；
The burner is arranged above biomass gasification device comprising combustion chamber 21 and has scalable igniting
The burner 18 of rifle 19；The connection of burner 18 is arranged in 21 lower part of combustion chamber, and scalable burning torch 19 can extend into combustion chamber
In 21；The gas supply end of burner 18 connects the air supply opening of two cyclone separators 8；Level-one heat exchanger plates are provided in combustion chamber 21,
Calory burning is absorbed for level-one heat exchanger plates；
The side of biomass gasification device and burner, the hot side inlet of heat-exchanger rig is arranged in the heat-exchanger rig
Connect the exhanst gas outlet of combustion chamber 21；Secondary heat exchange plate is set inside heat-exchanger rig, absorbs flue gas heat for secondary heat exchange plate；
The recirculated water of domestic hot-water and heating pipeline successively uses after level-one heat exchanger plates and the heat absorption of secondary heat exchange plate.
Wherein, set in half gasification installation 4 be orderly used to from bottom to up there are three netted fire grate 5 leaf for being put into biomass,
Root, bar；Fire grate 5 is corresponded on the gasification furnace wall 32 of gasification furnace 4 equipped with feeding port 3, and air outlet 1 is placed under fire grate 5；Half gasifies
Gas outlet is arranged in 4 top of device, and lower end is provided with slag-drip opening.
Wherein, cyclone separator 8 includes separable cartridge 6, the separator inlet 31 of 6 side of separable cartridge setting, separator
The wall surface of entrance 31 and separable cartridge 6 is at 8~10 °；The bulky grain outlet 7 of lower end setting, the central tube 20 that top is set；Two rotations
The central tube 20 of wind separator 8 connects gas collecting tube 35 through connecting pipe 29 respectively, and gas collecting tube 35 connects burner as air supply opening
18 gas supply end.Two and half gasification installations 4 and two cyclone separators 8 are set with the rotation that is centrosymmetric of 35 axis of gas collecting tube
It sets, gas collecting tube 35 is connect with the gas supply end rotatory sealing of burner 18.
Shell is arranged in the external of the system, and the shell of system is provided with the tangent part of half gasification installation, 4 rotational trajectory
For the feed opening of half gasification installation 4, feed opening is corresponding with the position of feeding port 3, can be overlapped after rotation for feeding.
Burner 18 includes the air distribution pipeline that outlet side is connected to combustion chamber 21；The air distribution pipeline includes gasification cigarette
Gas channel 24, and around the natural gas channel 25 that sets gradually of gasification exhaust gases passes 24 and air exhaust gases passes 26；Gasify cigarette
Gas channel 24 connects the air supply opening of two cyclone separators 8, is connected in this preferred embodiment with gas collecting tube 35, and gasify exhaust gases passes 24
The interior scalable burning torch 19 of setting；Natural gas channel 25 connects natural gas line 14, and the outlet side in natural gas channel 25 is provided with
Regulating valve 28；Air exhaust gases passes 26 connect air pipeline 13, air the outlet sides of exhaust gases passes 26 be provided with bluff body 27；It is empty
The flue gas injection channel 17 being connected to combustion chamber 21 is provided on Qi exhaust gases passes 26, for part cigarette in injection combustion chamber 21
Gas forms flue gas recirculation.
It is arranged concentrically circumferential wave card 16 in the combustion chamber 21 and the circular needle wing as level-one heat exchanger plates exchanges heat
Plate 15；The upper end closed of circular needle wing heat exchanger plates 15, inside and outside formed and cut with circumferential wave card 16 and 21 side wall of combustion chamber
The U-shaped heat exchange runner in face；Heat exchange runner input end and combustion chamber between circular needle wing heat exchanger plates 15 and circumferential wave card 16
21 combustion zone is connected to, the exhanst gas outlet of outlet end and combustion chamber 21 between 21 side wall of circular needle wing heat exchanger plates 15 and combustion chamber
Connection.
Heat-exchanger rig includes sequentially connected compact heat exchanger 9, demister 30 and chimney 33；The close-coupled heat exchange
Device 9 includes the heat exchanger plates 10 that multiple compact Layouts are in labyrinth type heat exchanging channel 12, and heat exchanger plates 10 are used as secondary heat exchange plate；Heat exchange is logical
12 end of road connects demister 30, and 30 end of demister connects chimney 33 through blower 34.It further include that setting is disguised in biogas
It sets and rushes ash-pit 11 with heat-exchanger rig lower end；Half gasification installation 4 solid waste outlet, cyclone separator 8 solid waste
The condensate outlet of object outlet and heat-exchanger rig is connected to ash-pit 11 is rushed, and carries out water seal by rushing the water contained in ash-pit 11；
Rush the water pump 2 and chemicals dosing plant 23 for being separately provided for disposing waste liquid on ash-pit 11.The condensate outlet of heat-exchanger rig connects
The condensing water inlet 22 for the demister being arranged on rushing ash-pit 11, the serpentine-like arrangement in the longitudinal section of heat exchanger channels 12.
Specifically, a kind of biomass gasification system that can provide domestic hot-water and have both heating function of the present invention, such as Fig. 1 institute
Show, including two and half gasification installations, 4 tail portion is connected with two cyclone separators 8 respectively, two outlets of cyclone separator 8 are by connecting
Pipeline 29 connects, and 29 tail portion of connecting pipe connects the burner after same gas collecting tube 35 with the premix with scalable burning torch 19
18 are connected, and air distribution pipeline are equipped between gasification furnace 4 and combustion chamber 21, gasifying gas is in 21 low nitrogen burning of combustion chamber, the flue gas of generation
The compact heat exchanger 9 and demister 30 for flowing through circumferential wave card 16, circular needle wing plate 15, right end, through blower 34 from chimney 33
Discharge.
Half gasification installation 4 is respectively provided with three netted fire grates 5, is sequentially placed into the leaf, root, bar of biomass from bottom to up,
Furnace side is equipped with feeding port 3, and there is air outlet 1 in lower end, realizes leaf portion divided combustion, and then complete the drying and gasification of leaf, root, bar.Gas
Change 4 wall surface of furnace and is coated with refractory material.In this preferred embodiment, half gasification installation 4 preferably uses half-gasification oven.
The compact heat exchanger 9 includes the heat exchanger plates 10 that multiple compact Layouts are in heat exchanger channels 12, and flue gas is logical in heat exchange
It is condensed in road 12 by heat exchanger plates 10, connects demister 30 in 12 end of heat exchanger channels.The labyrinth arrangement side of heat exchanger channels 12
Formula increases flue gas flow, enhanced heat exchange.
The system bottom, which exists, rushes ash-pit 11, uses sealing structure for water, increases water pump 2 and condensing water inlet 22.Make
It can be discharged into and be rushed in ash-pit 11 for the bulky grain lime-ash that the ash bucket and cyclone separator 8 of solid waste outlet are isolated.Punching
Chemicals dosing plant 23 is set inside the water seal of ash-pit 11, is directly disposed waste liquid, after filter, fishing slag, water recycling.
The recirculated water first passes through the preheating of circular needle wing heat exchanger plates 15, then is passed through in heat exchanger plates 10 and further add
Heat uses after the completion of heating as heating water and domestic hot-water.
Whole system is modularization assembling, convenient disassembly, and Miniaturizable meets different load demand as household.And have
There is while providing the function of domestic hot-water and heating, heating and hot-water heating system can automatically switch, and can replace existing natural gas
Wall-hung boiler.System, which adjusts part, to carry out remote adjustment using existing sensor.
As shown in Fig. 2, the biomass gasification device is rotatable system, half gasification installation 4 can be same with cyclone separator 8
When surround the center point middle shaft rotation, i.e., be middle shaft rotation with gas collecting tube 35, gas collecting tube 35 and burner 18 are coaxial in rotary seal
It connects, the feeding port 3 on half gasification installation 4 is corresponding with the feed opening position on shell, being capable of double of gasification installation 4 by rotation
Continuous charging guarantees the continuity and lasting heat supply of gasification, facilitates and completes the charging of half gasification installation 4 and other work.
As shown in figure 3, the cyclone separator 8 is a kind of new structure, including separable cartridge 6,6 side of separable cartridge are set
There is separator inlet 31, lower end is bulky grain outlet 7, and top is equipped with central tube 20 for gasifying gas to be discharged.The separator
At 8~10 °, central tube 20 is high alloy heat proof material for entrance 31 and 6 wall surface of separable cartridge.
As shown in Figure 4 and Figure 5, the burner 18 by scalable burning torch 19, gasification exhaust gases passes 24, air flue gas
Channel 26 and natural gas channel 25 form, wherein air exhaust gases passes 26 be equipped with bluff body 27, and be connected with air pipeline 13, day
Right gas channel 25 is equipped with regulating valve 28, is connected with natural gas line 14.Partial fume passes through air/smoke pipeline 13 in combustion chamber
Injection back flows back into burner 18, forms flue gas recirculation.
Claims (10)
1. a kind of biomass gasification system that can provide domestic hot-water and have both heating function, which is characterized in that including biogas
Makeup is set, burner and heat-exchanger rig；
The biomass gasification device includes two and half gasification installations (4) and two cyclone separators (8)；Half gasification installation
(4) gas outlet connects one to one the separator inlets (31) of cyclone separator (8)；
The burner is arranged above biomass gasification device comprising combustion chamber (21) and has scalable burning torch
(19) burner (18)；Burner (18) connection is arranged in combustion chamber (21) lower part, and scalable burning torch (19) can extend into
In to combustion chamber (21)；The gas supply end of burner (18) connects the air supply opening of two cyclone separators (8)；It is set in combustion chamber (21)
Level-one heat exchanger plates are equipped with, absorb calory burning for level-one heat exchanger plates；
The side of biomass gasification device and burner, the hot side inlet connection of heat-exchanger rig is arranged in the heat-exchanger rig
The exhanst gas outlet of combustion chamber (21)；Secondary heat exchange plate is set inside heat-exchanger rig, absorbs flue gas heat for secondary heat exchange plate；
The recirculated water of domestic hot-water and heating pipeline successively uses after level-one heat exchanger plates and the heat absorption of secondary heat exchange plate.
2. a kind of biomass gasification system that can provide domestic hot-water and have both heating function according to claim 1, special
Sign is, sets that there are three netted fire grate (5) in half gasification installation (4), is orderly used to is put into biomass from bottom to up
Leaf, root, bar；Fire grate (5) are corresponded on the gasification furnace wall (32) of gasification furnace (4) equipped with feeding port (3), are located under fire grate (5) and are placed with
Air outlet (1)；Gas outlet is arranged in half gasification installation (4) top, and lower end is provided with slag-drip opening.
3. a kind of biomass gasification system that can provide domestic hot-water and have both heating function according to claim 1, special
Sign is that the cyclone separator (8) includes separable cartridge (6), the separator inlet of separable cartridge (6) side setting
(31), the bulky grain of lower end setting exports (7), the central tube (20) that top is set, separator inlet (31) and separable cartridge (6)
Wall surface is at 8~10 °；The central tube (20) of two cyclone separators (8) connects gas collecting tube (35) through connecting pipe (29) respectively, collection
Gas supply end of the tracheae (35) as air supply opening connection burner (18).
4. a kind of biomass gasification system that can provide domestic hot-water and have both heating function according to claim 3, special
Sign is, two and half gasification installations (4) and two cyclone separators (8) are set with the rotation that is centrosymmetric of gas collecting tube (35) axis
It sets, gas collecting tube (35) is connect with the gas supply end rotatory sealing of burner (18).
5. a kind of biomass gasification system that can provide domestic hot-water and have both heating function according to claim 4, special
Sign is, further includes system shell, and system shell and half gasification installation (4) tangent part of rotational trajectory are provided with gasifies for half
The feed opening of device (4).
6. a kind of biomass gasification system that can provide domestic hot-water and have both heating function according to claim 1, special
Sign is that the burner (18) includes the air distribution pipeline that outlet side is connected to combustion chamber (21)；The air distribution pipeline packet
Include gasification exhaust gases passes (24), and around gasification exhaust gases passes (24) the natural gas channel (25) that sets gradually and air cigarette
Gas channel (26)；
Gasification exhaust gases passes (24) connects the air supply opening of two cyclone separators (8), and setting can stretch in gasification exhaust gases passes (24)
Point reduction firelock (19)；
Natural gas channel (25) connects natural gas line (14), and the outlet side of natural gas channel (25) is provided with regulating valve (28)；
Air exhaust gases passes (26) connection air pipeline (13), air the outlet sides of exhaust gases passes (26) be provided with bluff body
(27)；Air be provided with the flue gas injection channel (17) being connected to combustion chamber (21) on exhaust gases passes (26), burn for injection
Partial fume forms flue gas recirculation in room (21).
7. a kind of biomass gasification system that can provide domestic hot-water and have both heating function according to claim 1, special
Sign is, is arranged concentrically circumferential wave card (16) in the combustion chamber (21) and the circular needle wing as level-one heat exchanger plates changes
Hot plate (15)；The upper end closed of circular needle wing heat exchanger plates (15), inside and outside with circumferential wave card (16) and combustion chamber (21)
The U-shaped heat exchange runner of side wall Formation cross-section；Heat exchange runner between circular needle wing heat exchanger plates (15) and circumferential wave card (16)
Input end is connected to the combustion zone of combustion chamber (21), the outlet end between circular needle wing heat exchanger plates (15) and combustion chamber (21) side wall
It is connected to the exhanst gas outlet of combustion chamber (21).
8. a kind of biomass gasification system that can provide domestic hot-water and have both heating function according to claim 1, special
Sign is that the heat-exchanger rig includes sequentially connected compact heat exchanger (9), demister (30) and chimney (33)；
The compact heat exchanger (9) includes the heat exchanger plates (10) that multiple compact Layouts are in labyrinth type heat exchanging channel (12), is changed
Hot plate (10) is used as secondary heat exchange plate；Heat exchanger channels (12) end connects demister (30), and demister (30) end is through blower
(34) chimney (33) are connected.
9. a kind of biomass gasification system that can provide domestic hot-water and have both heating function according to claim 1, special
Sign is, further include biomass gasification device and heat-exchanger rig lower end be set rush ash-pit (11)；Half gasification installation (4) are consolidated
Body waste outlet, cyclone separator (8) solid waste outlet and heat-exchanger rig condensate outlet and rush ash-pit
(11) it is connected to, and carry out water seal by rushing the water contained in ash-pit (11)；It rushes on ash-pit (11) and is separately provided for disposing waste liquid
Water pump (2) and chemicals dosing plant (23).
10. a kind of biomass gasification method that can provide domestic hot-water and have both heating function, which is characterized in that be based on claim
Biomass gasification system described in 1-9 any one, includes the following steps,
Step 1, biomass gasifies in two and half gasification installations (4), obtains gasifying gas；
Step 2, the gasifying gas obtained is passed into after collecting premixed in burner (18) after, the low nitrogen in combustion chamber (21)
Burning generates high-temperature flue gas；
Step 3, the secondary heat exchange plate that high-temperature flue gas flows through in the level-one heat exchanger plates and heat-exchanger rig in combustion chamber (21) is inhaled
Recuperation of heat is discharged after utilizing；
Step 4, the recirculated water of domestic hot-water and heating pipeline successively provides after level-one heat exchanger plates and the heat absorption of secondary heat exchange plate
Domestic hot-water and progress heating.
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| CN110345633B (en) | 2020-06-19 |
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