CN209383715U - A kind of biomass gasification system - Google Patents
A kind of biomass gasification system Download PDFInfo
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- CN209383715U CN209383715U CN201822203286.XU CN201822203286U CN209383715U CN 209383715 U CN209383715 U CN 209383715U CN 201822203286 U CN201822203286 U CN 201822203286U CN 209383715 U CN209383715 U CN 209383715U
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Abstract
The utility model discloses a kind of biomass gasification systems, biomass gasifying furnace including ground is arranged in, primary cyclone, second cyclone dust extractor, multistage suspension preheater, L-type connecting tube, ash conveying pipe, device for cooling ash and high-temperature blower, biomass gasifying furnace lateral wall top is provided with cigarette wind channel, cigarette wind channel is connected to the entrance on primary cyclone lateral wall top, outlet at the top of primary cyclone is connected to by the feed channel that gasifies with the entrance of second cyclone dust extractor, primary cyclone bottom is provided with outlet, outlet is connected to by feed back pipe with the collection port of biomass gasifying furnace lower part；L-type connecting tube includes vertical duct and horizontal tube；Exhanst gas outlet at the top of second cyclone dust extractor is connected to by L-type connecting tube with the side of multistage suspension preheater.The tar generated after gasification of biomass can be effectively treated, and the temperature degree that gasifies is down to the available work temperature of system follow-up equipment using bed material, reduce energy consumption.
Description
Technical field
The utility model relates to biomass gasification technology field, especially a kind of biomass gasification system.
Background technique
The available solid biomass enormous amount of China, mainly based on agricultural wastes and timber waste.Existing biology
Matter gasification furnace carries out the problems such as dedusting, coking present in gasifying electricity generation.
Since biomass has the characteristics that volatile matter is high, structure is more open, can be generated in biomass gasification process big
Measure dust.And tar can be generated after gasification of biomass, tar has corrosivity, strongly adherent and thermal instability.Dust and
Tar may the equipment such as blower to biomass gasification system rear end have an adverse effect, pipeline is blocked, to reduce gasification
Efficiency, or even influence gasification furnace service life.
Utility model content
The purpose of the utility model is to provide a kind of biomass gasification systems, to solve existing biomass gasifying furnace and carry out gas
The problem that dedusting present in elelctrochemical power generation is not thorough, coking corrosion is strong, equipment use and maintenance cost is high, gasification furnace li` is short.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of biomass gasification system, including setting
In the biomass gasifying furnace 1 on ground, primary cyclone 2, second cyclone dust extractor 3, multistage suspension preheater, L-type connection
Pipe 4, ash conveying pipe 5, device for cooling ash 6 and high-temperature blower 7, the 1 lateral wall top of biomass gasifying furnace are provided with cigarette wind channel, cigarette
Wind channel is connected to the entrance on the 2 lateral wall top of primary cyclone, and the outlet at 2 top of primary cyclone passes through
Gasification feed channel is connected to the entrance of second cyclone dust extractor 3, and 2 bottom of primary cyclone is provided with outlet, outlet
It is connected to by feed back pipe with the collection port of 1 lower part of biomass gasifying furnace；
L-type connecting tube 4 includes vertical duct and horizontal tube；
The exhanst gas outlet at 3 top of second cyclone dust extractor is connected by the side of L-type connecting tube 4 and multistage suspension preheater
Logical, the other side of multistage suspension preheater is connected to high-temperature blower 7；Device for cooling ash 6 passes through ash conveying pipe 5 and multistage suspension preheater
Connection.
Further, the bottom of second cyclone dust extractor 3 is provided with outlet feeder pipe, and feeder pipe is connected with ash conveying pipe 5.
Further, the vertical duct of L-type connecting tube 4 and the angle of horizontal tube are 90 °.
Further, multistage suspension preheater includes at least three heat exchange units.
Further, it connects between heat exchange unit.
Further, multistage suspension preheater includes first order suspended preheater 8, second level suspended preheater 9 and the third level
Suspended preheater 10；
The gas vent at 8 top of first order suspended preheater passes through L-type connecting tube 4 and 9 outer wall of second level suspended preheater
The entrance on top is connected to, and the outlet of 8 bottom of first order suspended preheater is connected to by branch pipe with ash conveying pipe 5；
The gas vent at 9 top of second level suspended preheater passes through outside L-type connecting tube 4 and third level suspended preheater 10
The entrance on wall top is connected to；Suspended preheater 9 lower part in the second level is suspended by feeder pipe and second cyclone dust extractor 3 and the first order
L-type connecting tube 4 between preheater 8 is connected to；
The gas vent at 10 top of third level suspended preheater is connected to by pipeline with high-temperature blower 7；The third level suspends pre-
Hot 10 lower part of device is connected by the L-type connecting tube 4 between feeder pipe and first order suspended preheater 8 and second level suspended preheater 9
It is logical.
Further, the model of first order suspended preheater 8, second level suspended preheater 9 and third level suspended preheater 10
It is identical；Suspended preheater 9 top surface in the second level is higher than 8 top surface of first order suspended preheater；10 top surface of third level suspended preheater is high
In 9 top surface of second level suspended preheater.
Further, gasification feed channel is horizontally disposed.
The beneficial effects of the utility model are embodied in:
1, the utility model provides a kind of biomass gasification system, is arranged ingenious.It is revolved after gasification of biomass by level-one
Wind separator, second cyclone dust extractor and multistage suspension preheater, by inert bed material and dust and subsequent come in flow gasification gas
Tar carried, to achieve the purpose that tar removing, the subsequent equipment of system and pipeline are protected.
2, multistage suspension preheater stronger can be changed using the gas-solid mixing of heat exchange unit in the biomass gasification system
Hot coefficient cools down to high-temperature flue gas using the inert bed material of low temperature in shorter distance, to reach in gasification temperature degree
In the case where requiring to high-temperature blower import, waste heat can be utilized more fully.
3, the tar generated after gasification of biomass can be effectively treated, and gasification temperature degree is down to system using bed material
The available work temperature of follow-up equipment reduces energy consumption.
Other features and advantages of the utility model will illustrate in the following description, and partly from specification
It becomes apparent, or is understood and implementing the utility model.The main purpose and further advantage of the utility model can lead to
Specifically noted scheme in specification, claims is crossed to be achieved and obtained.
Detailed description of the invention
The utility model is described in more detail with reference to the accompanying drawing.
Fig. 1 is a kind of structural schematic diagram of biomass gasification system of the utility model.
Appended drawing reference: 1- biomass gasifying furnace, 2- primary cyclone, 3- second cyclone dust extractor, the connection of 4-L type
Pipe, 5- ash conveying pipe, 6- device for cooling ash, 7- high-temperature blower, 8- first order suspended preheater, the second level 9- suspended preheater, 10-
Third level suspended preheater.
Specific embodiment
The technical solution of the utility model is described in detail by the following examples, embodiment below is only exemplary
, it is only capable of for explanation and illustration the technical solution of the utility model, and cannot be construed to technical solutions of the utility model
Limitation.
The utility model provides a kind of biomass gasification system, biomass gasifying furnace 1, level-one rotation including ground is arranged in
Wind separator 2, second cyclone dust extractor 3, multistage suspension preheater, L-type connecting tube 4, ash conveying pipe 5, device for cooling ash 6 and high temperature wind
Machine 7, L-type connecting tube 4 include vertical duct and horizontal tube；The vertical duct of L-type connecting tube 4 and the angle of horizontal tube are 90 °.
Biomass gasifying furnace 1 is for the biomass fuel gasifying that density is small, loosely organized at gasification gas.The biomass
1 lateral wall top of gasification furnace is provided with cigarette wind channel, the entrance in cigarette wind channel and the 2 lateral wall top of primary cyclone
The outlet of connection, 2 top of primary cyclone is connected to by the feed channel that gasifies with the entrance of second cyclone dust extractor 3, level-one
2 bottom of cyclone separator is provided with outlet, and outlet is connected to by feed back pipe with the collection port of 1 lower part of biomass gasifying furnace；
The exhanst gas outlet at 3 top of second cyclone dust extractor is connected to 4 vertical duct of L-type connecting tube, the horizontal tube and multistage of L-type connecting tube 4
The side of suspended preheater is connected to, and the other side of multistage suspension preheater is connected to high-temperature blower 7；Device for cooling ash 6 passes through ash pipeline
Road 5 is connected to multistage suspension preheater.Wherein, gasification feed channel is horizontally disposed.
Wherein, multistage suspension preheater may include at least three heat exchange units.It connects between heat exchange unit.Multistage suspension
Preheater includes first order suspended preheater 8, second level suspended preheater 9 and third level suspended preheater 10；The first order suspends
Preheater 8, second level suspended preheater 9 are identical with the model of third level suspended preheater 10；9 top surface of second level suspended preheater
Higher than 8 top surface of first order suspended preheater；10 top surface of third level suspended preheater is higher than 9 top surface of second level suspended preheater.Often
First order suspended preheater 8 is connected by feed inlet pipe with discharge port pipe, and third level suspended preheater 10 is spatially for successively
Upper and lower layered arrangement.
The gas vent at 8 top of first order suspended preheater passes through L-type connecting tube 4 and 9 outer wall of second level suspended preheater
The entrance on top is connected to, and the outlet of 8 bottom of first order suspended preheater is connected to by branch pipe with ash conveying pipe 5.Specifically, L-type
The vertical duct of connecting tube 4 is connected to the gas vent at 8 top of first order suspended preheater, horizontal tube and second level suspended preheater
The entrance on 9 outer wall tops is connected to.
The gas vent at 9 top of second level suspended preheater passes through outside L-type connecting tube 4 and third level suspended preheater 10
The entrance on wall top is connected to；Suspended preheater 9 lower part in the second level is suspended by feeder pipe and second cyclone dust extractor 3 and the first order
L-type connecting tube 4 between preheater 8 is connected to；The gas vent at 10 top of third level suspended preheater passes through pipeline and high temperature wind
Machine 7 is connected to；10 lower part of third level suspended preheater passes through feeder pipe and first order suspended preheater 8 and second level suspended preheater
L-type connecting tube 4 between 9 is connected to.
By primary cyclone 2, second cyclone dust extractor 3 and multistage suspension preheater after gasification of biomass, lead to
Cross inert bed material and dust with it is subsequent come flow gasification gas in tar carried, to achieve the purpose that tar removing, to being
Subsequent equipment of uniting and pipeline are protected.
Multistage suspension preheater can utilize the stronger heat exchange of gas-solid mixing of heat exchange unit in the biomass gasification system
Coefficient cools down to high-temperature flue gas using the inert bed material of low temperature in shorter distance, to reach in gasification temperature degree
In the case that 7 import of high-temperature blower requires, waste heat can be utilized more fully.
By multistage suspension preheater combination biomass gasification system, efficiency of dust collection can be improved, and pre- using multistage suspension
Inert particle tar adsorption in hot device, to improve system stability.
The course of work of above-mentioned biomass gasification system:
Step 1, biomass material generate the ash-laden gas of high temperature after feeding system enters in biomass gasifying furnace 1 and gasifies
Change gas；
Step 2, primary dedusting, dust-laden gasification gas enter one cyclonic point by 1 upper smoke wind channel of biomass gasifying furnace
Gas solid separation is carried out from device 2；The lower part that solid particle after separation returns to biomass gasifying furnace 1 continues to participate in gasification, another party
Face adjusts bed layer pressure, temperature as bed material and keeps fluidization.
Step 3, final dusting, high temperature dust gasification gas after separation by the exhanst gas outlet of primary cyclone 2 into
Enter second cyclone dust extractor 3.
Step 4, the cooling of multistage suspension preheater；
S1, the upper smoke wind channel outlet of second cyclone dust extractor 3 and the first order in multistage suspension preheater suspend pre-
Hot device 8 is connected.The gas vent at 8 top of the vertical duct of L-type connecting tube 4 and first order suspended preheater is connected to, horizontal tube and the
The entrance on 9 outer wall top of second level suspended preheater is connected to.The outlet of 8 bottom of first order suspended preheater passes through branch pipe and ash pipeline
Road 5 is connected to.The ash content of tar adsorption is accepted, and is cooled down to it.
S2 passes through the ash content and bed material of second level suspended preheater 9 and the gasification that will enter first order suspended preheater 8
Gas mixing, completes heat exchange in the vertical duct and horizontal tube of L-type connecting tube 4.
The upper smoke wind channel outlet of S3, second level suspended preheater 9 are connect with third level suspended preheater 10 by L-type
Pipe 4 is connected to, specifically, vertical duct is connected to the gas vent at 9 top of second level suspended preheater, horizontal tube and the third level suspend
The entrance on 10 outer wall top of preheater is connected to.
S4, the upper smoke wind channel outlet and high-temperature blower 7 of third level suspended preheater 10 are simultaneously sent into gasification of biomass system
System follow-up equipment.
The utility model provides a kind of biomass gasification system, is arranged ingenious, and gas after gasification is from second level cyclone dust removal
After device 3 is blown out, is entered in first stage suspension preheater and once exchanged heat and dedusting by import air hose, each heat exchange unit institute
The heat of transmitting, 80% or more completes in intake stack, and 20% or less completes in cyclone cylinder, and the gas after heat exchange is from outlet
Air hose enters in next stage suspended preheater.
Dust is separated in primary cyclone 2 and second cyclone dust extractor 3, and the dust after gas solid separation is by going out
Mouth feeder pipe is connected with ash conveying pipe 5, is then connected to device for cooling ash 6 jointly.Pass through first by the gas of second cyclone dust extractor 3
The outlet air hose of grade suspended preheater 8 enters in second level suspended preheater 9, carries out two-stage dust removal heat exchange；By two-stage dust removal
The gas of heat exchange is entered in third level suspended preheater 10 by the outlet air hose of second level suspended preheater 9；Ash content leads to step by step
Branch pipe is crossed to be collected in device for cooling ash 6.Meanwhile the temperature degree that gasifies being down to the available work temperature of system follow-up equipment, it reduces
Energy consumption.It is carried by inert bed material and dust with the subsequent tar come in flow gasification gas, to reach the mesh of tar removing
, the subsequent equipment of system and pipeline are protected.
The foregoing is merely the preferable specific embodiment of the utility model, but the protection scope of the utility model not office
Be limited to this, variation that anyone skilled in the art is expected within the technical scope disclosed by the utility model or
Replacement, should be covered within the scope of the utility model.
Claims (8)
1. a kind of biomass gasification system, it is characterised in that: biomass gasifying furnace (1), one cyclonic including ground is arranged in
Separator (2), second cyclone dust extractor (3), multistage suspension preheater, L-type connecting tube (4), ash conveying pipe (5), device for cooling ash (6)
With high-temperature blower (7), biomass gasifying furnace (1) the lateral wall top is provided with cigarette wind channel, cigarette wind channel and the level-one
The entrance on cyclone separator (2) lateral wall top is connected to, the outlet at the top of primary cyclone (2) by gasification feed channel with
The entrance of second cyclone dust extractor (3) is connected to, and primary cyclone (2) bottom is provided with outlet, and outlet passes through feed back
Pipe is connected to the collection port of biomass gasifying furnace (1) lower part；
L-type connecting tube (4) includes vertical duct and horizontal tube；
Exhanst gas outlet at the top of second cyclone dust extractor (3) is connected by L-type connecting tube (4) and the side of multistage suspension preheater
Logical, the other side of multistage suspension preheater is connected to high-temperature blower (7)；Device for cooling ash (6) passes through ash conveying pipe (5) and multistage suspension
Preheater connection.
2. biomass gasification system as described in claim 1, which is characterized in that the bottom of second cyclone dust extractor (3) is arranged
There is outlet feeder pipe, feeder pipe is connected with ash conveying pipe (5).
3. biomass gasification system as described in claim 1, which is characterized in that the vertical duct and horizontal tube of L-type connecting tube (4)
Angle be 90 °.
4. biomass gasification system as described in claim 1, which is characterized in that multistage suspension preheater is changed including at least three
Hot cell.
5. biomass gasification system as claimed in claim 4, which is characterized in that connect between three heat exchange units.
6. biomass gasification system as claimed in claim 4, which is characterized in that multistage suspension preheater includes that the first order suspends
Preheater (8), second level suspended preheater (9) and third level suspended preheater (10)；
Gas vent at the top of first order suspended preheater (8) passes through L-type connecting tube (4) and second level suspended preheater (9) outside
The entrance on wall top is connected to, and the outlet of first order suspended preheater (8) bottom is connected to by branch pipe with ash conveying pipe (5)；
Gas vent at the top of second level suspended preheater (9) passes through L-type connecting tube (4) and third level suspended preheater (10) outside
The entrance on wall top is connected to；Suspended preheater (9) lower part in the second level passes through feeder pipe and second cyclone dust extractor (3) and the first order
L-type connecting tube (4) connection between suspended preheater (8)；
Gas vent at the top of third level suspended preheater (10) is connected to by pipeline with high-temperature blower (7)；The third level suspends pre-
Hot device (10) lower part is connect by the L-type between feeder pipe and first order suspended preheater (8) and second level suspended preheater (9)
Manage (4) connection.
7. biomass gasification system as claimed in claim 4, which is characterized in that first order suspended preheater (8), the second level are outstanding
Floating preheater (9) are identical with the model of third level suspended preheater (10)；Suspended preheater (9) top surface in the second level is higher than the first order
Suspended preheater (8) top surface；Third level suspended preheater (10) top surface is higher than second level suspended preheater (9) top surface.
8. biomass gasification system as described in claim 1, which is characterized in that gasification feed channel is horizontally disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822203286.XU CN209383715U (en) | 2018-12-26 | 2018-12-26 | A kind of biomass gasification system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822203286.XU CN209383715U (en) | 2018-12-26 | 2018-12-26 | A kind of biomass gasification system |
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| CN209383715U true CN209383715U (en) | 2019-09-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109628148A (en) * | 2018-12-26 | 2019-04-16 | 北京国电龙源环保工程有限公司 | A kind of biomass gasification system and its course of work |
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2018
- 2018-12-26 CN CN201822203286.XU patent/CN209383715U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109628148A (en) * | 2018-12-26 | 2019-04-16 | 北京国电龙源环保工程有限公司 | A kind of biomass gasification system and its course of work |
| CN109628148B (en) * | 2018-12-26 | 2024-03-22 | 国能龙源环保有限公司 | Biomass gasification system and working process thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100039 room 901, 9 / F, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Patentee after: Guoneng Longyuan environmental protection Co.,Ltd. Address before: 100039 room 911, 1 building, 16 West Fourth Ring Road, Haidian District, Beijing. Patentee before: BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENGINEERING Co.,Ltd. |
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| CP03 | Change of name, title or address |