CN205560732U - Pile up ceramic bobble porous medium combustor - Google Patents
Pile up ceramic bobble porous medium combustor Download PDFInfo
- Publication number
- CN205560732U CN205560732U CN201620070739.4U CN201620070739U CN205560732U CN 205560732 U CN205560732 U CN 205560732U CN 201620070739 U CN201620070739 U CN 201620070739U CN 205560732 U CN205560732 U CN 205560732U
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- Prior art keywords
- ceramic bead
- porous media
- combustor
- accumulation
- burning zone
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Abstract
The utility model belongs to the technical field of the low concentration mixes the gas combustion in advance, a pile up ceramic bobble porous medium combustor is related to to it is gaseous as fuel that concentration is less than mixing in advance of explosion limit lower limit. The utility model discloses an innovation point lies in: set up stationary flow section casing, insulation material, burning zone casing, combustion chamber, adiabatic complete combustion chamber, spout chamber, the inside front end combustion chamber of burning zone casing is equipped with the dog brick and is piled up ceramic bobble porous medium, and the low concentration mixes in advance and gaseously preheats in piling up ceramic bobble porous medium and begin the burning, the inside middle part of burning zone casing be adiabatic complete combustion chamber, for complete combustion's yet low concentration in advance thoughtlessly gas provide the space of abundant reaction, burning zone body case rear is the spout chamber, and the flue gas behind the complete combustion forms the high -velocity air blowout through this chamber to the improvement is to the heating efficiency of the work piece that is heated. The utility model is suitable for a contain the more low concentration of impurity or dust and mix gas in advance, porous medium material long service life, the combustor is easily installed, is maintained.
Description
Technical field
This utility model belongs to low concentration premixed combustion gas technical field, relates to a kind of accumulation ceramic bead
Porous media combustor, with concentration less than lower explosive limit, calorific value 250Kcal/m3～420Kcal/m3
Premixed gas as fuel, by arranging to pile up ceramic bead as the preheating zone of porous media and combustion
Burn district, it is ensured that low concentration, low heat value premixed gas are stablized, burnt completely.This technology be applicable to oil,
Various low concentrations, the low heat value premixed gases such as the process tail gas of chemical industry or the drawing-off gas of coal industry
Burner as fuel.
Background technology
Oil, coal produce big volume low-concentration, low heat value associated gas, coal mine gas in recovery process；
The industries such as oil, chemical industry, manufacture, metallurgy, pharmacy the most also can produce big volume low-concentration,
Low heat value process tail gas, such as refinery tail-gas, oil shale oil-refining tail gas, prepares activated carbon tail gas etc..
Part associated gas, coal bed gas or process tail gas concentration may be below lower explosive limit, low heat value
Generally at 250Kcal/m3～420Kcal/m3, natural conditions can not continuously, stable burning, therefore
Generally cannot utilize.If directly discharging, not only wasting the energy but also polluting environment.Current profit
Other fuel of blending is had to improve calorific value or high heat value gas companion's burning etc. by method；These methods are utilizing
To consume a large amount of high-grade fuel while low concentration, low heat value premixed gas, limit low concentration,
Low-BTU gas utilize scope, utilize simultaneously cost improve, economic benefit reduce.
Summary of the invention
The purpose of this utility model is: provide one to pile up ceramic bead porous media combustor, with dense
Degree is less than lower explosive limit, calorific value 250Kcal/m3～420Kcal/m3Premixed gas as fuel,
Realize low concentration, low heat value premixed gas is stablized, is burnt completely, makes burning produce heat and is obtained by.
In order to overcome the shortcoming and defect of prior art, this utility model is used by its technical problem of solution
Technical scheme be: a kind of pile up ceramic bead porous media combustor, it is characterised in that it includes surely
Stream piece housing, insulation material, burning zone housing, combustor, adiabatic secondary furnace and spout chamber；
Described steady flow segment housing and internal cavity are set to gradually expanded form along air motion direction；Described steady flow segment
Housing and burning zone housing pass through Flange joint；Described steady flow segment housing has with described burning zone casing lining
Insulation material；
Described burning zone enclosure interior cavity sets gradually along air motion direction as described combustor, described
Adiabatic secondary furnace and described spout chamber；In described combustor, two ends arrange two gear block bricks, keep off described in two rows
Filling between block brick and pile up ceramic bead porous media, described accumulation ceramic bead porous media is by one
Above ceramic bead is piled up and is formed, and described ceramic bead material is mullite or corundum, described combustor
Top and bottom are respectively arranged with ball-loading hole and ball-unloading hole；In described burning zone housing, middle part cavity is set to
Described adiabatic secondary furnace, the described tapered cavity of burning zone rear is described spout chamber.
Further, in described combustor described accumulation ceramic bead porous media length L1 be 0.45m～
0.8m；Described adiabatic secondary furnace length L2 is 0.2m～0.4m, described accumulation ceramic bead porous media
Identical with described adiabatic secondary furnace cross-sectional area.
Further, described accumulation ceramic bead porous media and described adiabatic secondary furnace cross-sectional area A
Determine according to formula: A=C1·Q·(1-C2·d2)1/2；Wherein C1For constant, unit is h/m, span
3.58×10-4～8.24 × 10-4；C2For constant, unit is 1/mm2, span 1.59 × 10-4~
1.76×10-4；Q is the low concentration premix gas being passed through in described ceramic honey comb porous media or adiabatic secondary furnace
The volume flow of body, unit is m3/h；D is ceramic bead diameter, and unit is mm.
Further, the outlet diameter in described spout chamber is D, a length of L3 in described spout chamber, institute
State 1～2 times of the outlet diameter D that length L3 is described spout chamber in spout chamber.
Further, described insulation material is Low Cement Castable or aluminosilicate fiberboard.
Further, described ceramic bead diameter d is 5mm～25mm.
When the gas that low concentration premixed gas is containing more impurity or dust, it is preferable that described pottery is little
Ball is bright finish ceramic bead, and sphere diameter d is 5mm～25mm.
When low concentration premixed gas is relatively cleaning gas free from foreign meter, it is preferable that described ceramic bead
For with groove ceramic bead, sphere diameter d is 15mm～25mm, described groove width be 2mm～
5mm, described gash depth is 2mm～3mm.
This utility model, owing to taking above technical scheme, has the advantage that 1, piles up ceramic bead
Porous media combustor, using the low concentration premix gas that cannot burn under natural conditions as fuel, reclaims, profit
With mass energy, simultaneously for solving low concentration gas process, reducing discharging a kind of technical scheme of problem offer；2、
Combustor, adiabatic secondary furnace and spout chamber are set inside burner shell, improve the burning effect of burner
Rate and the efficiency of heating surface to subsequent thermal workpiece；3, use ceramic bead as porous media material, dress
Ball, unloading ball fast and easy, the impurity simultaneously adhered on ceramic bead can be removed by cleaning, install,
Easy to maintenance, service life is long；4, use ceramic bead as porous media material, it is adaptable to containing miscellaneous
Matter or the more low concentration premixed gas of dust, wide adaptability.
Accompanying drawing explanation
Fig. 1 is the accumulation ceramic bead porous media combustor structure chart of this utility model embodiment.
Fig. 2 is the structural representation of this utility model bright finish ceramic bead monomer.
Fig. 3 is the structural representation of this utility model with groove ceramic bead monomer.
Wherein, steady flow segment housing (1), insulation material (2), burning zone housing (3), burning
Room (4), ball-loading hole (41), ball-unloading hole (42), adiabatic secondary furnace (5), spout chamber (6),
Block brick (7), accumulation ceramic bead porous media (8), ceramic bead (9), bright finish pottery
Bead (91), with groove ceramic bead (92), groove (93).
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, referring to the drawings
Develop simultaneously embodiment, further describes this utility model.
Fig. 1 is a kind of embodiment of the present utility model.A kind of accumulation ceramic bead porous media combustor,
Including: steady flow segment housing 1, insulation material 2, burning zone housing 3, combustor 4, adiabatic secondary furnace 5
With spout chamber 6.
Steady flow segment housing 1 and internal cavity are set to gradually expanded form along air motion direction, in order to reduce air-flow
Speed, steady flow direction, steady flow segment housing 1 and burning zone housing 3 pass through Flange joint；Steady flow segment
Housing 1 and burning zone housing 3 are lined with insulation material 2, and insulation material 2 is Low Cement Castable or silicon
Acid aluminum fiberboard, is used for reducing porous media combustor radiation loss.
Burning zone housing 3 internal cavity sets gradually along air motion direction as combustor 4, adiabatic after-flame
Room 5 and spout chamber 6 three part, in burning zone housing 3 Inner Front End combustor 4, time interval arranges two rows
Block brick 7, fills between two gear block bricks 7 and piles up ceramic bead porous media 8, setting of block brick 7
Put for protecting accumulation ceramic bead porous media 8.Pile up ceramic bead porous media 8 be by one with
On ceramic bead 9 pile up form, ceramic bead 9 material is mullite or corundum, combustor 4 top
It is provided with ball-loading hole 41, is used for loading accumulation ceramic bead porous media 8, is provided with bottom combustor 4
Ball-unloading hole 42, for quick and portably draw off accumulation ceramic bead porous media 8.
In the middle part of burning zone housing 3, cavity is set to adiabatic secondary furnace 5, for the most imperfect combustion low concentration
Premixed gas provides the space of fully reaction.
The tapered cavity in burning zone housing 3 rear portion is spout chamber 6, and the flue gas after burning is by this chamber completely
Formation high velocity air sprays, to improve the efficiency of heating surface to subsequent thermal workpiece.
In above-described embodiment, pile up in combustor 4 ceramic bead porous media 8 length L1 be 0.45m～
0.8m；Adiabatic secondary furnace 5 length L2 is 0.2m～0.4m.Pile up ceramic bead porous media 8 with exhausted
Hot secondary furnace 5 cross-sectional area is A (unit m2), by empirical equation A=C1·Q·(1-C2·d2)1/2Determine；
Wherein C1For constant (unit h/m), span 3.58 × 10-4～8.24 × 10-4；C2(single for constant
Position 1/mm2), span 1.59 × 10-4～1.76 × 10-4；Q is the volume flow of low heat value premixed gas
Amount (unit m3/h)；D is ceramic bead diameter (unit mm).The outlet diameter in spout chamber 6 is D,
The a length of L3 in spout chamber 6, the outlet diameter D that length L3 is spout chamber in usual spout chamber 6 1～
2 times.
As in figure 2 it is shown, when the gas that low concentration premixed gas is containing more impurity or dust, preferentially select
With bright finish ceramic bead 91.Bright finish ceramic bead 91 is ganoid spheroid, and sphere diameter d is
5mm～25mm.
As it is shown on figure 3, when low concentration premixed gas is relatively cleaning gas free from foreign meter, preferentially select
With groove ceramic bead 92, its heat transfer surface area is big, efficiency of combustion is high.With groove ceramic bead 92 is
The spheroid of groove 93 is offered on surface, and sphere diameter d is 15mm～25mm, and groove 93 width is
2mm～5mm, groove 93 degree of depth is 2mm～3mm.
A kind of using method piling up ceramic bead porous media combustor, the steps include:
1) before use, first pass through ball-loading hole 42 in combustor 4, fill ceramic bead 9 and form heap
Long-pending ceramic bead porous media 8, then uses electric heater or combustion gas will pile up ceramic bead porous media 8
It is heated to 800 DEG C～850 DEG C；
2) low concentration premixed gas is passed through accumulation ceramic bead porous media combustor, enters after current stabilization
Combustor 4 can be internally formed stable flame piling up ceramic bead porous media 8, and low concentration premixes
Gas burning continuous, stable；
3) a small amount of unburned low concentration premixed gas burns at adiabatic secondary furnace 5, after forming burning completely
700 DEG C～the high-temperature flue gas of 930 DEG C；
4) flue gas is available for recycling through spout chamber 6 ejection at a high speed, flue gas heat.
These are only preferred embodiment of the present utility model, not in order to limit this utility model, all
Within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. done, all
Should be included within the scope of this utility model.
Claims (8)
1. pile up ceramic bead porous media combustor for one kind, it is characterised in that it includes steady flow segment housing, insulation material, burning zone housing, combustor, adiabatic secondary furnace and spout chamber；
Described steady flow segment housing and internal cavity are set to gradually expanded form along air motion direction；Described steady flow segment housing and burning zone housing pass through Flange joint；Described steady flow segment housing and described burning zone casing lining have insulation material；
Described burning zone enclosure interior cavity sets gradually along air motion direction as described combustor, described adiabatic secondary furnace and described spout chamber；In described combustor, two ends arrange two gear block bricks, fill between block brick described in two rows and pile up ceramic bead porous media, described accumulation ceramic bead porous media is to be piled up by more than one ceramic bead to form, described ceramic bead material is mullite or corundum, and described top of combustion chamber and bottom are respectively arranged with ball-loading hole and ball-unloading hole；In described burning zone housing, middle part cavity is set to described adiabatic secondary furnace, and the described tapered cavity of burning zone rear is described spout chamber.
2. a kind of accumulation ceramic bead porous media combustor as claimed in claim 1, it is characterized in that, in described combustor, described accumulation ceramic bead porous media length L1 is 0.45m～0.8m, described adiabatic secondary furnace length L2 is 0.2m～0.4m, and described accumulation ceramic bead porous media is identical with described adiabatic secondary furnace cross-sectional area.
3. a kind of accumulation ceramic bead porous media combustor as claimed in claim 2, it is characterised in that the determination of described accumulation ceramic bead porous media and described adiabatic secondary furnace cross-sectional area A is according to formula: A=C1·Q·(1-C2·d2)1/2；Wherein C1For constant, unit is h/m, span 3.58 × 10-4～8.24 × 10-4；C2For constant, unit is 1/mm2, span 1.59 × 10-4～1.76 × 10-4；Q is the volume flow of the low concentration premixed gas being passed through in described accumulation ceramic bead porous media or adiabatic secondary furnace, and unit is m3/h；D is ceramic bead diameter, and unit is mm.
4. a kind of accumulation ceramic bead porous media combustor as claimed in claim 3, it is characterised in that the outlet diameter in described spout chamber is D, a length of L3 in described spout chamber, and length L3 in described spout chamber is 1～2 times of the outlet diameter D in described spout chamber.
5. a kind of accumulation ceramic bead porous media combustor as claimed in claim 4, it is characterised in that described insulation material is Low Cement Castable or aluminosilicate fiberboard.
6. a kind of accumulation ceramic bead porous media combustor as claimed in claim 5, it is characterised in that described ceramic bead sphere diameter d is 5mm～25mm.
7. a kind of accumulation ceramic bead porous media combustor as claimed in claim 6, it is characterised in that when the gas that low concentration premixed gas is containing more impurity or dust, described ceramic bead is bright finish ceramic bead, and sphere diameter d is 5mm～25mm.
8. a kind of accumulation ceramic bead porous media combustor as claimed in claim 6, it is characterized in that, when low concentration premixed gas is relatively cleaning gas free from foreign meter, described ceramic bead is with groove ceramic bead, sphere diameter d is 15mm～25mm, described groove width is 2mm～5mm, and described gash depth is 2mm～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620070739.4U CN205560732U (en) | 2016-01-25 | 2016-01-25 | Pile up ceramic bobble porous medium combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620070739.4U CN205560732U (en) | 2016-01-25 | 2016-01-25 | Pile up ceramic bobble porous medium combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205560732U true CN205560732U (en) | 2016-09-07 |
Family
ID=56821247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620070739.4U Expired - Fee Related CN205560732U (en) | 2016-01-25 | 2016-01-25 | Pile up ceramic bobble porous medium combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205560732U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613060A (en) * | 2018-11-20 | 2019-04-12 | 中煤科工集团重庆研究院有限公司 | Device and method for measuring gas explosion lower limit under heat storage oxidation high temperature condition |
-
2016
- 2016-01-25 CN CN201620070739.4U patent/CN205560732U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613060A (en) * | 2018-11-20 | 2019-04-12 | 中煤科工集团重庆研究院有限公司 | Device and method for measuring gas explosion lower limit under heat storage oxidation high temperature condition |
| CN109613060B (en) * | 2018-11-20 | 2021-07-20 | 中煤科工集团重庆研究院有限公司 | Device and method for measuring gas explosion lower limit under heat storage oxidation high temperature condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20180125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |