CN105907429B - A kind of blast cap and assemble method for fluidizing adjustable air outlet velocity in bed operating - Google Patents
A kind of blast cap and assemble method for fluidizing adjustable air outlet velocity in bed operating Download PDFInfo
- Publication number
- CN105907429B CN105907429B CN201610416969.6A CN201610416969A CN105907429B CN 105907429 B CN105907429 B CN 105907429B CN 201610416969 A CN201610416969 A CN 201610416969A CN 105907429 B CN105907429 B CN 105907429B
- Authority
- CN
- China
- Prior art keywords
- blast cap
- air
- connecting tube
- out chamber
- airtight connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
- C10J3/56—Apparatus; Plants
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The present invention relates to a kind of for fluidizing blast cap and assemble method that air outlet velocity is adjusted in bed operating, belongs to fluid bed correlative technology field.Blast cap part includes mainly hood base, has multiple inlet channels in hood base；At least one inlet channel with connecting tube is closed is connected to；The bottom airtight connection at the top of the hood base and intermediate blast cap；There is partition board, top and blast cap silk plug airtight connection inside intermediate blast cap；The connecting tube be located inside intermediate blast cap and with intermediate blast cap airtight connection, make to become the first air-out chamber on the downside of partition board, become the second air-out chamber on the upside of partition board；There are multiple air outlets on the intermediate blast cap.The present invention realizes the wind speed that blast cap air outlet is adjusted in fluid bed under operation by designing completely new structure.
Description
Technical field
The present invention relates to fluid bed correlative technology fields, in particular to a kind of adjustable in bed operating for fluidizing
Save the blast cap and assemble method of air outlet velocity.
Background technology
China's biomass energy is extremely abundant, and only the agricultural biomass such as agricultural crop straw waste material stock number is 7 × 108t/h, phase
When in 3.5 × 108t standard coals, forestry residue about 1.5 × 108t/h converts into standard coal about 0.7 × 108t.Biomass energy
Using the balance for realizing carbon dioxide absorption and discharge, reply decarburization more stringent in the future is required to have powerful competing
Strive power.
Gasification of biomass can convert low-grade energy to high-grade energy, be biomass utilization it is a kind of most
Good selection.
The type of furnace used by country's gasification of biomass generally comprises fixed-bed gasification furnace and fluidized-bed gasification furnace at present.But
Fixed-bed gasification furnace is since production capacity is small, tar yield is big, gasification efficiency is low and cannot carry out large-scale industrialization life
The shortcomings of production, is not applied on a large scale.
And the work characteristics of fluidized-bed gasification furnace includes：Gas-solid contact mixability is good, and the residence time is all shorter, bed internal pressure
Power drop is higher, is heated evenly, and heating is rapid, and gasification reaction speed is fast, and combustible gas yield is high, and in-furnace temperature is high and constant, can
Tar content is smaller in combustion gas, but contains more ash content in the combustible gas come out of the stove, can frequent start-stop, the intensity of gasification is big, comprehensive
Good economy performance is very suitable for large-scale industrial air supply system.
Fluidized-bed gasification furnace is usually made of air compartment, air distribution plate and furnace body, and blast cap is carried on air distribution plate, and fluidizing gas is logical
The blast cap crossed on air distribution plate enters furnace body, makes material fluidized gasification in burner hearth, and each blast cap is unimpeded and equal on air distribution plate
Even outlet air is the basic guarantee that material fully fluidizes in burner hearth whole cross section, is effectively to avoid locally lying in fluidisation in burner hearth not
The basic guarantee of good or dead zone unique method and fluid bed continuous and steady operation.
The initial wind speed in outlet of blast cap is generally required in design of Fluidized bed in a certain range, to provide suitable wind
And fluidizing velocity, the under normal conditions input of total blast volume rely on fan frequency conversion adjusting control, it is only necessary to which wind turbine itself has enough
Pressure head, so the increase and decrease for total blast volume is adjusted by fan frequency conversion.
But if material changes, material variety, density, granularity etc., the fluidizing velocity and air quantity needed
It may change therewith, be to determine, can not have been changed in operation due to the outlet size of blast cap under normal conditions, then
It is increase and decrease total blast volume to need common practice when adjustment, and to increase and decrease blast cap air outlet velocity, such way has significant limitation,
It can only increase fluidising air velocity by increasing total blast volume, or reduce total blast volume to reduce fluidising air velocity, but cannot accomplish
While total blast volume increases, fluidising air velocity reduces, and while cannot accomplishing that total blast volume reduces, blast cap air outlet velocity increases, or increases
Subtract the blast cap air outlet velocity maintained like while total blast volume.
Only with respect to the adjustable related data of circumferential weld in the adjustable blast cap of existing research, but also can only be the blowing out the case where
Under be adjusted, cannot be adjusted in the process of running.
For these reasons, there is an urgent need for design it is a kind of can be to dress that air outlet velocity is adjusted under not blowing out state
It sets, to solve the above problems.
Invention content
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of adjustable in bed operating for fluidizing
The blast cap of air outlet velocity.The present invention blocks inlet channel to change by designing completely new structure, by the louver in air compartment
Become the speed of blast cap outlet.It is right convenient for splitting out blast cap silk plug and intermediate blast cap out of burner hearth simultaneously when overhauling or clearing up blast cap
Blast cap is overhauled, is cleared up, is replaced.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：
A kind of blast cap for fluidizing adjustable air outlet velocity in bed operating, including：
Hood base, hood base is interior to have multiple inlet channels；
At least one inlet channel with connecting tube is closed is connected to；
The bottom airtight connection at the top of the hood base and intermediate blast cap；
There is partition board, top and blast cap silk plug airtight connection inside intermediate blast cap；
The connecting tube be located inside intermediate blast cap and with intermediate blast cap airtight connection, make to become the first outlet air on the downside of partition board
Chamber, partition board upside become the second air-out chamber；
There are multiple air outlets on the intermediate blast cap.
Preferably, the intermediate blast cap is located at small big variable-diameter structure under the part on the upside of partition board is, pressing plate is by second
Air-out chamber is divided into intermediate air-out chamber and top air-out chamber.
Preferably, the inlet channel is two.
Preferably, the inlet channel is three.
Preferably, first air-out chamber is directly connected with inlet channel, intermediate air-out chamber by the first connecting tube with
Inlet channel is connected to, and top air-out chamber is connected to by the second connecting tube with inlet channel.
Preferably, second connecting tube is located inside intermediate blast cap.
Preferably, the inlet channel controls intake by louver.
While providing above structure scheme, the present invention also provides a kind of assemble methods of above-mentioned blast cap, main to wrap
Include following steps：
A, hood base is fixed on air distribution plate；
B, intermediate blast cap is passed through into the first connecting tube and hood base airtight connection；
C, pressing plate is pressed on intermediate blast cap；
D, by the second connecting tube and hood base airtight connection；
E, by the upper end of intermediate blast cap and blast cap silk plug airtight connection.
The beneficial effects of the invention are as follows:
(1) big and heavy after large-size circulating fluidized bed middle air compartment, air distribution plate and its upper material process, it is not frangible
Air compartment carries out replacing maintenance blast cap.And the structure design of this blast cap, blast cap can be overhauled in burner hearth, cleared up, be replaced.
Have the characteristics that maintenance is easy, installation replacement is convenient, time saving and energy saving and substantially reduces installation and replacement cost.
(2) biomass circulating fluidized bed can fluidized according to biomass material type, density, the concrete condition of granularity
During bed operating, the air outlet velocity of blast cap can be adjusted in the case of variable air rate.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the assembling schematic diagram of the first connecting tube in the present invention；
Fig. 3 is the assembling schematic diagram of the second connecting tube in the present invention；
Fig. 4 is the upward view of Fig. 2；
Wherein:11, blast cap silk plug, 12, intermediate blast cap, 13, pressing plate, the 14, first connecting tube, 15, hood base, 16, the
Two connecting tubes, 17, louver, 18, partition board；
21, top air-out chamber, 22, intermediate air-out chamber, the 23, first air-out chamber, 24, air outlet, 25, inlet channel.
Specific implementation mode
Below in conjunction with attached drawing, the present invention is described in detail.
Embodiment 1：A kind of for fluidizing the blast cap that air outlet velocity is adjusted in bed operating, structure is as shown in Figs 1-4, packet
It includes：Hood base 15, hood base 15 is interior to have three inlet channels 25, and three inlet channels 25 are circularly and evenly distributed, each
The upper and lower ends of inlet channel 25 are connected to outside.
14 airtight connection of one of inlet channel 25 and the first connecting tube, another inlet channel and the second connecting tube 16
Airtight connection.
The inside of intermediate blast cap 12 has partition board 18, has wire hole, the wire hole and the formation of the first connecting tube 14 on partition board 18
Screw thread pair connects sealing structure, and the lower part of intermediate blast cap 12 is made to be sticked in the top of hood base 15, enables intermediate blast cap 12
Bottom and the top of hood base 15 it is closed.The top of partition board 18 and hood base 15 forms the first air-out chamber 23.
The intermediate blast cap 12 is located at small big variable-diameter structure under the part on the upside of partition board 18 is, pressing plate 13 is sticked in change
At diameter, pressing plate 13 is located at 18 top of partition board.The top of intermediate blast cap 12 and 11 airtight connection of blast cap silk plug.The structure makes pressing plate
Intermediate air-out chamber 22 is formed between 13 and partition board 18, the wind of intermediate air-out chamber 22 comes from the first connecting tube 14.
Top air-out chamber 21 is formed between the pressing plate 13 and blast cap silk plug 11, the wind of top air-out chamber 21 comes from second
Connecting tube 16.
On the side wall of intermediate blast cap 12, it is provided with multiple air outlets 24 so that the wind of three air-out chambers can be from centre
It is flowed outwardly inside blast cap 12.
For another angle, the main body of two connecting tubes is respectively positioned on the inside of intermediate blast cap 12, bottom with it is respectively right
The inlet channel 25 answered is connected.
In three inlet channels 25, is controlled and be opened and closed by louver 17.
In the present invention, make blast cap tool there are three independent cavity, each cavity all has exhaust vent.Pass through louver 17
The opening and closing quantity for adjusting inlet channel 25 to control the number of outlet air aperture on blast cap, and then controls the outlet of blast cap aperture
Speed.In adjustment process, fluidized-bed gasification furnace is without shutting down, and regulating effect is not influenced by total blast volume inside fluid bed.
Embodiment 2：While providing above-mentioned cap structure scheme, the present invention also provides a kind of assemblings of above-mentioned blast cap
Method mainly includes the following steps：
A, hood base 15 is fixed on air distribution plate.
B, intermediate blast cap 12 is connect by screw thread pair with the first connecting tube 14, the first connecting tube 14 passes through screw thread pair and wind
15 airtight connection of cap pedestal, then the bottom of intermediate blast cap 12 is with regard to the closed top for being fastened on hood base 15；
C, pressing plate 13 is pressed on intermediate blast cap 12；
D, the second connecting tube 16 is run through into pressing plate 13, and passes through screw thread pair and 15 airtight connection of hood base；
E, by the upper end of intermediate blast cap 12 and 11 airtight connection of blast cap silk plug.
With the above structure, the present invention is connected to three independent cavitys by three inlet channels, and in each chamber
Air outlet is equipped on body, thus the number by controlling outlet air aperture on blast cap, and then control the muzzle velocity of blast cap aperture.
Meanwhile louver is located in air compartment, can be adjusted at any time, to solve during operation the case where not variable air rate
The purpose of the air outlet velocity of lower just adjustable blast cap.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (5)
1. a kind of for fluidizing the blast cap that air outlet velocity is adjusted in bed operating, which is characterized in that including：
Hood base, hood base is interior, and there are multiple inlet channels, the inlet channel to control intake by louver；
At least one inlet channel with connecting tube is closed is connected to；
The bottom airtight connection at the top of the hood base and intermediate blast cap；
There is partition board, top and blast cap silk plug airtight connection inside intermediate blast cap；
The connecting tube be located inside intermediate blast cap and with intermediate blast cap airtight connection, make to become the first air-out chamber on the downside of partition board,
Become the second air-out chamber on the upside of partition board；
There are multiple air outlets on the intermediate blast cap；The intermediate blast cap is located at small big change under the part on the upside of partition board is
Gauge structure；Second air-out chamber is divided into intermediate air-out chamber and top air-out chamber by pressing plate.
2. blast cap according to claim 1, which is characterized in that the inlet channel is three.
3. blast cap according to claim 2, which is characterized in that first air-out chamber is directly connected with inlet channel,
Intermediate air-out chamber is connected to by the first connecting tube with inlet channel, and top air-out chamber is connected by the second connecting tube and inlet channel
It is logical.
4. blast cap according to claim 3, which is characterized in that second connecting tube is located inside intermediate blast cap.
5. a kind of assemble method to claim 1-4 any one of them blast caps, which is characterized in that steps are as follows：
A, hood base is fixed on air distribution plate；
B, intermediate blast cap is passed through into the first connecting tube and hood base airtight connection；
C, pressing plate is pressed on intermediate blast cap；
D, by the second connecting tube and hood base airtight connection；
E, by the upper end of intermediate blast cap and blast cap silk plug airtight connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610416969.6A CN105907429B (en) | 2016-06-14 | 2016-06-14 | A kind of blast cap and assemble method for fluidizing adjustable air outlet velocity in bed operating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610416969.6A CN105907429B (en) | 2016-06-14 | 2016-06-14 | A kind of blast cap and assemble method for fluidizing adjustable air outlet velocity in bed operating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105907429A CN105907429A (en) | 2016-08-31 |
| CN105907429B true CN105907429B (en) | 2018-09-18 |
Family
ID=56750127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610416969.6A Active CN105907429B (en) | 2016-06-14 | 2016-06-14 | A kind of blast cap and assemble method for fluidizing adjustable air outlet velocity in bed operating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105907429B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827171B (en) * | 2019-03-15 | 2024-03-08 | 镇江东亚碳素焦化有限公司 | Fluidized bed boiler for petroleum coke combustion desulfurization |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1412100A (en) * | 2002-11-29 | 2003-04-23 | 武汉凯迪电力股份有限公司 | Resistance adjustable gas distributing device for fluid material |
| CN1786566A (en) * | 2005-12-09 | 2006-06-14 | 西安热工研究院有限公司 | Adjustable air distributor for circulating fluidized bed boiler |
| CN201535501U (en) * | 2009-09-24 | 2010-07-28 | 长沙锅炉厂有限责任公司 | Air cap for air distribution system of biomass circulating fluidized bed boiler |
| JP2011094078A (en) * | 2009-11-02 | 2011-05-12 | Ihi Corp | Circulating fluidized-bed gasification apparatus |
| CN102563629A (en) * | 2010-12-15 | 2012-07-11 | 中国科学院工程热物理研究所 | Spiral-flow type built-in cylindrical blast cap |
| CN205662495U (en) * | 2016-06-14 | 2016-10-26 | 山东大学 | A hood that is used for fluidized bed export wind speed in service adjustable |
-
2016
- 2016-06-14 CN CN201610416969.6A patent/CN105907429B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1412100A (en) * | 2002-11-29 | 2003-04-23 | 武汉凯迪电力股份有限公司 | Resistance adjustable gas distributing device for fluid material |
| CN1786566A (en) * | 2005-12-09 | 2006-06-14 | 西安热工研究院有限公司 | Adjustable air distributor for circulating fluidized bed boiler |
| CN201535501U (en) * | 2009-09-24 | 2010-07-28 | 长沙锅炉厂有限责任公司 | Air cap for air distribution system of biomass circulating fluidized bed boiler |
| JP2011094078A (en) * | 2009-11-02 | 2011-05-12 | Ihi Corp | Circulating fluidized-bed gasification apparatus |
| CN102563629A (en) * | 2010-12-15 | 2012-07-11 | 中国科学院工程热物理研究所 | Spiral-flow type built-in cylindrical blast cap |
| CN205662495U (en) * | 2016-06-14 | 2016-10-26 | 山东大学 | A hood that is used for fluidized bed export wind speed in service adjustable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105907429A (en) | 2016-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101475814B (en) | Multi-directional air distribution fixed bed biomass gasification stoves | |
| CN101186831A (en) | Special-purpose gas supplying device for coke dry quenching unit | |
| CN205662495U (en) | A hood that is used for fluidized bed export wind speed in service adjustable | |
| CN202836180U (en) | Ring-shaped sleeve kiln | |
| CN202039035U (en) | Energy-saving coal gas producer | |
| CN105907429B (en) | A kind of blast cap and assemble method for fluidizing adjustable air outlet velocity in bed operating | |
| CN204329319U (en) | Biomass Briquette Hot-blast Stove | |
| CN201343523Y (en) | Multi-wind-distribution fixed bed biomass gasification furnace | |
| CN117487577A (en) | External heating type biomass pyrolysis device | |
| CN201285034Y (en) | Biomass combustor | |
| CN206207466U (en) | Biomass boiler burner | |
| CN205447737U (en) | Biomass circulating fluid bed boiler returning charge mechanism | |
| CN201406414Y (en) | Two-stage type gas furnace changed from single-stage type | |
| CN201412956Y (en) | Energy-saving environmental-protection boiler | |
| CN201058866Y (en) | Entrained flow gasification installation for compressive dry coal powder and under slag draining in solid state | |
| CN204661597U (en) | A kind of black reactor trunnion device | |
| CN204779479U (en) | Matter integration integrated system is carried in pyrolysis of coal | |
| CN110617623A (en) | Adjustable hot-blast stove | |
| CN101597057A (en) | A kind of equipment of producing gac with core class charring material | |
| CN201541694U (en) | Bulk curing barn of concatemer assembled type biomass gasification furnace | |
| CN211146891U (en) | Adjustable hot-blast stove | |
| CN220393620U (en) | Round carbonization furnace with cooling device | |
| CN201024201Y (en) | Heat-storage reduction oven for vacuum metal smelting | |
| CN216925114U (en) | Tunnel kiln with secondary air temperature-adjusting burner for smoke discharge zone | |
| CN217929821U (en) | Cement manufacture is with high-efficient hot-blast recovery unit of cold machine of combing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |