CN208717248U - Biomass gasifying furnace - Google Patents
Biomass gasifying furnace Download PDFInfo
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- CN208717248U CN208717248U CN201821143527.XU CN201821143527U CN208717248U CN 208717248 U CN208717248 U CN 208717248U CN 201821143527 U CN201821143527 U CN 201821143527U CN 208717248 U CN208717248 U CN 208717248U
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Abstract
The utility model discloses a kind of biomass gasifying furnaces, primary air fan is connected by an air duct with igniter, and igniter is fixed on air-distribution device, and gasification hearth is connected to charging gear, secondary air channel is provided in gasification hearth, secondary air fan is connected by secondary air duct with secondary air channel；The top of gasification hearth is connect with gasification furnace separator, and the bottom of gasification furnace separator is connect by steam returning charge valve with gasification hearth, and top and the water cooling packet wall of gasification furnace separator are fixedly linked；Water cooling packet wall is internally provided with superheater and evaporator, evaporator is connect by feed pipe with feed pump, the outlet of superheater is connect with secondary air channel, steam returning charge valve, Steam Turbine respectively by jet chimney, the bottom of water cooling packet wall is connect with water cooling packet wall holding vessel, water cooling packet wall is connect with voluminous object separator, and the bottom of voluminous object separator is connect with solid particle holding vessel.The utility model realizes the recycling of solid product in biological flue gas, a variety of by-products.
Description
Technical field
The utility model relates to biomass fuel gasifying disposal technology fields, and in particular to a kind of fecund object gasification of biomass
Furnace.
Background technique
Biomass fuel gas be it is a kind of can clean and effective utilize the technology of biomass energy.Compared to fixed bed and air-flow
Bed, biomass fluidized bed gasification furnace bed tempertaure are evenly distributed, and tar content is low, and structure is simple, have good development prospect.State
Endogenous substance fuel source is unstable, complicated component, calorific value and moisture seasonal variety, existing biomass fluidized bed gasification furnace
Ability of regulation and control is poor, to demanded fuel height, can not adapt to the above feature, and single-machine capacity is small, and general single-machine capacity is less than 11MW, limitation
Biomass fluidized bed gasification furnace enlargement, large-scale development；The combustion gas that gasification of biomass generates is high-temperature fuel gas, later use
Difficulty, equipment dispersion, system complex, leakproofness are poor；Biomass generates the solid byproducts of many high values in gasification,
Such as coke, silica, rich in the ash of alkali metal, there is no biomass gasification equipment to realize and recycle by-product in equipment for gasification, increase
Subsequent recovery equipment, it is huge to will cause system complex.
Summary of the invention
In order to solve the above technical problems, the utility model provides a kind of biomass gasifying furnace.
The technical solution of the utility model are as follows: a kind of biomass gasifying furnace, primary air fan are connected with igniter, igniting dress
It sets and is fixed on air-distribution device, air-distribution device is located at the bottom of gasification hearth, and gasification hearth is connected to charging gear, is obliquely installed
Charging gear and gasification hearth between angle be α, secondary air channel, secondary air fan and secondary air channel phase are provided in gasification hearth
Even；The top of gasification hearth is connect with gasification furnace separator, and the bottom of gasification furnace separator passes through steam returning charge valve and gasification furnace
Thorax connection, top and the water cooling packet wall of gasification furnace separator are fixedly linked；Portion was disposed with water cooling packet from top to bottom within the walls
Hot device and evaporator, superheater and evaporator series, evaporator are connect by feed pipe with feed pump；The outlet of superheater passes through
Jet chimney is connect with secondary air channel, steam returning charge valve, Steam Turbine respectively, the bottom of water cooling packet wall and water cooling packet wall holding vessel
Connection, water cooling packet wall are connect with voluminous object separator, and the bottom of voluminous object separator is connect with solid particle holding vessel；The gas
Change and N number of temperature element is distributed on the inner wall of burner hearth, temperature element is connected by signal-transmitting cable with DCS control system, DCS
Control system is connect with primary air fan, secondary air fan respectively by signal-transmitting cable, and DCS control system includes automation CPS
Module, and exported temperature parameter, pressure parameter, flow parameter by automation CPS module.
Further, the superheater and evaporator are respectively connected with wall pipe, the wall pipe of superheater and wearing for evaporator
Wall coil is each passed through water cooling packet wall and is fixedly connected with primary seal case, and secondary seal Bin covering is in the outside of primary seal case, and one
Grade seal box, secondary seal case the same side be fixedly connected with water cooling packet wall, the another side of secondary seal case and expansion joint
One end is fixedly connected, and the other end of expansion joint is fixedly connected with the collecting box pipe of wall pipe.
Further, thermal insulation material is filled inside the primary seal case and secondary seal case.
Further, the water cooling packet wall is made of four membrane wall rows, and the interior media of water cooling packet wall is saturation carbonated drink
Mixture.
Further, the angle α is 45 ° -65 °.
Further, the primary air fan and secondary air fan are frequency conversion fan.
Further, the lower part of the gasification hearth and water cooling packet wall is pyramidal structure, gasification hearth and water cooling packet
The cross section of the upper part of wall is square.
Further, the gasification hearth is adiabatic furnace, and gasification hearth is made of steel plate framework, and gasification hearth is by outside extremely
It is interior to be filled with thermal insulation material, wear-resisting pouring material.
Further, the biomass gasifying furnace single machine scale reaches 30M.
The utility model has the following beneficial effects: the utility model is by being combined into one for gasification system and heat recovery system group
Body, simple and compact for structure, output superheated steam while realizing fuel gas of gasifying furnace output, solves secondary air channel and steam returns
Expect the steam source of valve, while remaining superheated steam is sent to Steam Turbine, can be used for power generation or heat supply.
Unstable for biomass source, complicated component, the characteristics such as calorific value and moisture seasonal variety take suitable tune
Control means, single machine scale can achieve 30MW.
The utility model is a kind of large-scale, controllable, adaptable biomass gasifying furnace, by gasification furnace and heat recovery
Equipment is combined into one, and not only realizes the recycling of solid product in biological flue gas, but also realization is more while generating combustion gas
The recycling of kind by-product.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 be I in Fig. 1 at enlarged drawing.
Fig. 3 is the top view of Fig. 2.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing, the present embodiment is not constituted to this
The limitation of utility model.
As shown in Figure 1, a kind of biomass gasifying furnace, including primary air fan 1, air duct 2, an igniter 3, air-distribution device
4, charging gear 5, secondary air fan 6, secondary air duct 7, secondary air channel 8, gasification hearth 9, gasification furnace separator 10, steam returning charge valve
11, water cooling packet wall 12, superheater 13, evaporator 14, feed pipe 15, feed pump 16, wall pipe 17, primary seal case 18, second level
Seal box 19, expansion joint 20, jet chimney 21, Steam Turbine 22, water cooling packet wall holding vessel 23, voluminous object separator 24, solid
Particle holding vessel 25, temperature element 26, signal-transmitting cable 27, DCS control system 28.
Primary air fan 1 is connected by an air duct 2 with igniter 3, and igniter 3 is fixed on air-distribution device 4, cloth wind
Device 4 is located at the bottom of gasification hearth 9.The lower part of gasification hearth 9 is divided into pyramidal structure, and the cross section of upper part is square.
Gasification hearth 9 is adiabatic furnace, and gasification hearth 9 is made of steel plate framework, gasification hearth 9 from outside to inside filled with thermal insulation material,
Wear-resisting pouring material.
Charging gear 5 is obliquely installed, and charging gear 5 is connected to gasification hearth 9, is pressed from both sides between charging gear 5 and gasification hearth 9
Angle is α, and angle α is 45 ° -65 °.Secondary air channel 8 is provided in gasification hearth 9, the upper of charging gear 5 is arranged in secondary air channel 8
Side, secondary air fan 6 are connected by secondary air duct 7 with secondary air channel 8.Primary air fan 1 and secondary air fan 6 are frequency conversion fan, once
The biomass that the air and charging gear 5 that blower 1 and secondary air fan 6 convey convey is within the temperature range of gasification hearth 9 controls
Gasification reaction occurs.
The top of gasification hearth 9 is weldingly connected with gasification furnace separator 10, and the bottom of gasification furnace separator 10 passes through steam
Returning charge valve 11 is fixedly linked with gasification hearth 9.
The top of gasification furnace separator 10 is fixedly linked with water cooling packet wall 12, and the cross section on 12 top of water cooling packet wall is side
Shape, water cooling packet wall 12 are made of four membrane walls row, and the interior media of water cooling packet wall 12 is saturation steam water interface, thus water cooling
The wall temperature of packet wall 12 is uniform, so that heating surface flue expands together with heat-transfer surface under high temperature, reduces the risk of gas leakage, protects
Back-end surfaces leakproofness is demonstrate,proved, safety is improved.
Superheater 13 and evaporator 14, superheater 13 and evaporator 14 are disposed with inside water cooling packet wall 12 from top to bottom
Series connection is fixed, and evaporator 14 is connect by feed pipe 15 with feed pump 16.As shown in Fig. 2, superheater 13 connects with evaporator 14
It is connected to wall pipe 17, it is close with level-one that the wall pipe 17 of superheater 13 with the wall pipe 17 of evaporator 14 is each passed through water cooling packet wall 12
Joint sealing 18 is welded and fixed, and the outside of water cooling packet wall 12, primary seal case 18 are arranged in secondary seal case 19 for primary seal case 18
With 12 joint welded seal of water cooling packet wall.Secondary seal case 19 is covered on the outside of primary seal case 18, secondary seal case 19
Left side be welded and fixed with water cooling packet wall 12, the right side of secondary seal case 19 and one end of expansion joint 20 are welded and fixed, swollen
The other end of swollen section 20 is mutually welded with the collecting box pipe of wall pipe 17, is avoided and is led to not showing for sealing because wall pipe 17 expands
As.Fill thermal insulation material inside primary seal case 18 and secondary seal case 19, primary seal case 18 and secondary seal case 19 are set
Set to form two-stage sealing, not only can guarantee air-tightness at gasification furnace wall pipe, but can free wxpansion, reduce site welding workload and
Security risk, it is both artistic and practical.
The outlet of superheater 13 by jet chimney 21 respectively with secondary air channel 8, steam returning charge valve 11,22 phase of Steam Turbine
Even, steam a part that superheater 13 generates is sent to secondary air channel 8 and steam returning charge valve 11, remainder is sent to Steam Turbine
22 power generations.
The lower part of water cooling packet wall 12 is pyramidal structure, and the bottom of water cooling packet wall 12 is connect with water cooling packet wall holding vessel 23, water
Cold packet wall 12 is connect with voluminous object separator 24, and water cooling packet wall 12 is arranged in the junction of water cooling packet wall 12 and voluminous object separator 24
Pyramidal structure top.After voluminous object separator 24 is arranged in 13 back-end surfaces of water cooling packet wall, voluminous object separator 24
Bottom is connect with solid particle holding vessel 25.Voluminous object separator 24 be cyclone separator, gasification product via water cooling packet wall 12,
After superheater 13, evaporator 14 cool down, cooling semicoke and ash absorption alkali metal and tar in gasification product, by voluminous object
Separator 24 carries out gas solid separation, in voluminous 24 top output biological fuel gas of object separator, bores under voluminous object separator 19
Mouth output coke, the biomass ash rich in alkali metal, semicoke, and collect and be stored in solid particle holding vessel 25, be conducive to subtract
Alkali metal influences follow-up equipment in few combustion gas, guarantees the utilization of fuel gas calorie, improves overall thermal efficiency, realizes in gasification furnace furnace
Recycle by-product.
N number of temperature element 26,4≤N≤16 are distributed on the inner wall of gasification hearth 9.Temperature element 26 is transmitted by signal
Cable 27 and DCS control system 28 connect, and DCS control system 28 passes through signal-transmitting cable 27 and primary air fan 1, secondary air fan
6 connections.When biomass moisture, the calorific value that charging gear 5 is sent into gasification hearth 9 change, temperature can phase in gasification hearth 9
It should change, temperature element 26 monitors temperature in gasification hearth 9, DCS control system 28 is fed back to by the measurement of temperature element 26,
DCS control system 28 according to preset it is logical adjust primary air fan 1 and 6 frequency of secondary air fan, and then adjust primary air fan 1 and two
Secondary blower 6 enters the First air of furnace, Secondary Air air quantity.By the amount of steam returning charge valve 11, the returning charge ash for being sent into gasification hearth 9 is adjusted
Amount reaches the temperature for adjusting gasification hearth 9 to adjust the gasification reaction in burner hearth, realizes and adjusts burner hearth for Biomass Characteristics
The purpose of temperature improves the adaptability of fuel, while effectively solving the problems, such as the high-temperature coking during biomass fuel gasifying.
DCS control system 28 includes automation CPS module, and is joined temperature parameter, pressure by automation CPS module
Number, flow parameter output
The normal control range of 9 in-furnace temperature design value T of gasification hearth is 700 DEG C≤T≤850 DEG C.
The process of voluminous object biomass gasifying furnace are as follows:
Fuel gas flow path are as follows: combustion gas enters gasification furnace separator 10 by gasification hearth 9, using hot device 13, evaporator 14
Afterwards, into voluminous object separator 24.
Carbonated drink process are as follows: after water sequentially enters evaporator 14 by feed pipe 15, superheater 13 is converted into steam, steam by
Jet chimney 21 respectively enters secondary air channel 8 and steam returning charge valve 11.
Air enters furnace process are as follows: after First air air enters primary air fan 1, successively by an air duct 2, igniter 3,
Gasification hearth 9 is sent into after air-distribution device 4 to answer with biomass reverse；After secondary air enters secondary air fan 6, successively pass through Secondary Air
Gasification hearth 9 is sent into after road 7, secondary air channel 8 to answer with biomass reverse.
The above descriptions are merely preferred embodiments of the present invention, is not used in limitation the utility model, this field skill
Art personnel can make various modifications or equivalent replacements to the utility model in the essence and protection scope of the utility model,
This modification or equivalent replacement also should be regarded as falling in the protection scope of technical solutions of the utility model.
Claims (9)
1. a kind of biomass gasifying furnace, it is characterised in that: primary air fan is connected with igniter, and igniter is fixed on cloth wind dress
It sets, air-distribution device is located at the bottom of gasification hearth, and gasification hearth is connected to charging gear, the charging gear and gas being obliquely installed
Changing angle between burner hearth is α, secondary air channel is provided in gasification hearth, secondary air fan is connected with secondary air channel；Gasification hearth
Top is connect with gasification furnace separator, and the bottom of gasification furnace separator is connect by steam returning charge valve with gasification hearth, gasification furnace
The top of separator is fixedly linked with water cooling packet wall；Portion is disposed with superheater and evaporator to water cooling packet from top to bottom within the walls,
Superheater and evaporator series, evaporator are connect by feed pipe with feed pump；Distinguished by jet chimney the outlet of superheater
It is connect with secondary air channel, steam returning charge valve, Steam Turbine, the bottom of water cooling packet wall is connect with water cooling packet wall holding vessel, water cooling packet
Wall is connect with voluminous object separator, and the bottom of voluminous object separator is connect with solid particle holding vessel；The gasification hearth it is interior
N number of temperature element is distributed on wall, temperature element is connected by signal-transmitting cable with DCS control system, and DCS control system is logical
It crosses signal-transmitting cable to connect with primary air fan, secondary air fan respectively, DCS control system includes automation CPS module, and is passed through
CPS module is automated to export temperature parameter, pressure parameter, flow parameter.
2. biomass gasifying furnace according to claim 1, it is characterised in that: the superheater is respectively connected with evaporator to be worn
Wall coil, the wall pipe of superheater are each passed through water cooling packet wall with the wall pipe of evaporator and are fixedly connected with primary seal case, second level
Seal box is covered on the outside of primary seal case, primary seal case, secondary seal case the same side be fixedly connected with water cooling packet wall,
The another side of secondary seal case is fixedly connected with one end of expansion joint, and the other end of expansion joint and the collecting box pipe of wall pipe are fixed
Connection.
3. biomass gasifying furnace according to claim 2, it is characterised in that: in the primary seal case and secondary seal case
Fill thermal insulation material in portion.
4. biomass gasifying furnace according to claim 1, it is characterised in that: the water cooling packet wall is by four membrane wall row's groups
At the interior media of water cooling packet wall is saturation steam water interface.
5. biomass gasifying furnace according to claim 1, it is characterised in that: the angle α is 45 ° -65 °.
6. biomass gasifying furnace according to claim 1, it is characterised in that: the primary air fan and secondary air fan are frequency conversion
Blower.
7. biomass gasifying furnace according to claim 1, it is characterised in that: the lower part of the gasification hearth and water cooling packet wall
Dividing is pyramidal structure, and gasification hearth and the cross section of the upper part of water cooling packet wall are square.
8. biomass gasifying furnace according to claim 1, it is characterised in that: the gasification hearth is adiabatic furnace, gasification
Burner hearth is made of steel plate framework, and gasification hearth is filled with thermal insulation material, wear-resisting pouring material from outside to inside.
9. biomass gasifying furnace according to claim 1, it is characterised in that: the biomass gasifying furnace single machine scale reaches
30M。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821143527.XU CN208717248U (en) | 2018-07-19 | 2018-07-19 | Biomass gasifying furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821143527.XU CN208717248U (en) | 2018-07-19 | 2018-07-19 | Biomass gasifying furnace |
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| Publication Number | Publication Date |
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| CN208717248U true CN208717248U (en) | 2019-04-09 |
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ID=65973772
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821143527.XU Active CN208717248U (en) | 2018-07-19 | 2018-07-19 | Biomass gasifying furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108913207A (en) * | 2018-07-19 | 2018-11-30 | 南通万达锅炉有限公司 | Biomass gasifying furnace |
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2018
- 2018-07-19 CN CN201821143527.XU patent/CN208717248U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108913207A (en) * | 2018-07-19 | 2018-11-30 | 南通万达锅炉有限公司 | Biomass gasifying furnace |
| CN108913207B (en) * | 2018-07-19 | 2024-03-22 | 南通万达能源动力科技有限公司 | Biomass gasification furnace |
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Address after: No.133, Zhongxiu Middle Road, Nantong City, Jiangsu Province, 226000 Patentee after: Nantong Wanda Energy Power Technology Co.,Ltd. Address before: No.133, Zhongxiu Middle Road, Nantong City, Jiangsu Province, 226000 Patentee before: NANTONG WANDA BOILER Co.,Ltd. |