CN201565298U - Fluidized reactor - Google Patents
Fluidized reactor Download PDFInfo
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- CN201565298U CN201565298U CN2009202074396U CN200920207439U CN201565298U CN 201565298 U CN201565298 U CN 201565298U CN 2009202074396 U CN2009202074396 U CN 2009202074396U CN 200920207439 U CN200920207439 U CN 200920207439U CN 201565298 U CN201565298 U CN 201565298U
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- combustion
- heat exchanger
- air
- burning gases
- gas
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Abstract
The utility model discloses a fluidized reactor which comprises a reactor casing, a combustion-gas heat exchanger and a combustion-air heat exchanger, wherein the reactor casing is divided into a mixing cavity and a combustion cavity by an air distributing plate, a combustion-gas inlet hole and a combustion-air inlet hole are arranged on the mixing cavity, a burned gas outlet hole I is arranged on the combustion cavity, one end of a heat exchange tube of the combustion-gas heat exchanger is a combustion-gas entry end, the other end of the heat exchange tube of the combustion-gas heat exchanger is communicated with the combustion-gas inlet hole, one end of a heat exchange tube of the combustion-air heat exchanger is a combustion-air entry end, the other end heat exchange tube of the combustion-air heat exchanger is communicated with the combustion-air inlet hole, and the burned gas outlet hole I is respectively communicated with the heat exchange cavities of the combustion-gas heat exchanger and the combustion-air heat exchanger. The fluidized reactor of the utility model can lead combustible gases with low concentration or ultra-low concentration to be kindled reliably and burned stably, the temperature fluctuation inside the fluidized reactor is small, the combustion cavity can be used not only as a reactor, but also as a heat reservoir, and the load adjustment scope of the fluidized reactor is wider when working under normal pressure.
Description
Technical field
The utility model relates to a kind of burner of burning combustible gas, relates in particular to a kind of fluidized reactor of be fit to burn low concentration or super low concentration combustible gas.
Background technology
In coal mining, chemical industry, petroleum industry and steel and iron industry production process, can produce a large amount of waste gas that contains imflammable gas such as methane, carbon monoxide, hydrogen.The concentration of imflammable gas usually is lower than 10% in the waste gas, even is lower than 5%, usually concentration is lower than 10% imflammable gas and calls the low concentration imflammable gas.With coal mining is example, and the main fuel gas of mine gas waste gas is a methane, and reason such as methane concentration is low, and change in concentration is big, and this low-concentration combustible gas is difficult to be lighted or keep smooth combustion.At present, low-concentration combustible gas nearly all recycles just directly to be arranged to atmosphere, has caused the serious waste of limited non-renewable resources on the one hand; Atmosphere pollution and greenhouse effects have been aggravated on the other hand.Therefore, rationally recycling low-concentration combustible gas has energy-conservation and the environmental protection double meaning.
Burner of the prior art mainly comprises reactor shell, and reactor shell is divided into hybrid chamber and combustion chamber by air distribution plate, and hybrid chamber is provided with combustion gas air admission hole and combustion air air admission hole, and combustion chamber is provided with the burning gases venthole.During use, fuel gas and combustion air are mixed in combustion gas air admission hole and combustion air air admission hole feeding hybrid chamber respectively, mixed gas enters the combustion chamber internal combustion from air distribution plate again, and the gas after the burning is discharged from the burning gases venthole.
The burner of said structure mainly is fit to the gas fuel burning of general concentration, and has difficulties such as combustible component change in concentration amplitude is big, burning is discontinuous, instability.
The utility model content
At the prior art above shortcomings, the utility model provides a kind of burning continuous and flameholding, and fluidized reactor simple in structure, and this fluidized reactor both can be fit to the low-concentration combustible gas burning, can be fit to the super low concentration combustible gas burning again.
The fluidized reactor that the utility model provides comprises reactor shell, and described reactor shell is divided into hybrid chamber and combustion chamber by air distribution plate, and hybrid chamber is provided with combustion gas air admission hole and combustion air air admission hole, and combustion chamber is provided with burning gases venthole I; Also comprise combustion gas heat exchanger and combustion air heat exchanger, heat exchanger tube one end of combustion gas heat exchanger is the fuel gas inlet end, the other end is communicated with the combustion gas air admission hole, and heat exchanger tube one end of combustion air heat exchanger is the combustion air inlet end, and the other end is communicated with the combustion air air admission hole; Described burning gases venthole I is communicated with the heat exchanging chamber of combustion gas heat exchanger and combustion air heat exchanger respectively.
Further, the heat exchanging chamber wall of described combustion gas heat exchanger is provided with burning gases air admission hole I and burning gases venthole II, described combustion air heat exchanger is provided with burning gases air admission hole II and burning gases venthole III, described burning gases venthole I is communicated with burning gases air admission hole I and burning gases air admission hole II respectively, and described burning gases venthole II is communicated with burning gases air admission hole II;
Further, on pipeline that described burning gases venthole I is communicated with burning gases air admission hole II and burning gases venthole II and pipeline that burning gases air admission hole II is communicated with, be respectively equipped with flow control valve;
Further, be fixed with the blast cap of blind hole structure on the exhaust vent of described air distribution plate, the sidewall of blast cap is provided with the blast cap aperture, and the exhaust vent of described air distribution plate, blast cap aperture and combustion chamber are communicated with successively.
The beneficial effects of the utility model: fluidized reactor of the present utility model adopts combustion gas heat exchanger and combustion air heat exchanger was set before hybrid chamber, make the combustion gas that enters hybrid chamber and combustion air respectively through combustion gas heat exchanger and the preheating of combustion air heat exchanger, with the catch fire probability and the smooth combustion efficient of the fuel gas that improves low concentration or super low concentration.Place sand grains on air distribution plate, sand grains circulates in combustion chamber to the mist preheating, can make the fuel gas smooth combustion of low concentration; Also can place sand grains and catalyst granules on air distribution plate, sand grains and catalyst granules circulate in combustion chamber to the mist preheating, can make the fuel gas smooth combustion of super low concentration simultaneously under the effect of catalyst granules.The gaseous product that combustion reaction generates is got rid of by burning gases venthole I and as the thermal source of heat exchanger, with heat transferred fuel gas and combustion air, the heat that the gas combustion that avoids waste produces, simultaneously also can carry out preheating to fuel gas, fluidized reactor both had been fit to the burning of low concentration or super low concentration combustible gas, reach energy savings and reduce the purpose of greenhouse gas emission, and simple in structure, cost is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is air distribution plate and blast cap assembled construction schematic diagram.
The structure of the Reference numeral representative in the accompanying drawing is as follows:
1-reactor shell 2-air distribution plate 3-hybrid chamber 4-combustion chamber 5-combustion gas air admission hole 6-combustion air air admission hole 7-burning gases venthole I 8-combustion gas heat exchanger 9-combustion air heat exchanger 10-fuel gas inlet end 11-combustion air inlet end 12-sand grains 13-burning gases air admission hole I 14-burning gases venthole II 15-burning gases air admission hole II16-burning gases venthole III 17-flow control valve 18-blast cap 19-blast cap aperture
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done to describe in further detail.
Fig. 1 is a structural representation of the present utility model, and Fig. 2 is air distribution plate and blast cap assembled construction schematic diagram, and as shown in the figure: fluidized reactor comprises reactor shell 1, combustion gas heat exchanger 8 and combustion air heat exchanger 9.Reactor shell 1 is divided into hybrid chamber 3 and combustion chamber 4 by air distribution plate 2, and hybrid chamber 3 is provided with combustion gas air admission hole 5 and combustion air air admission hole 6, and combustion chamber 4 is provided with burning gases venthole I 7, and air distribution plate 2 is provided with one deck sand grains 12.Heat exchanger tube one end of combustion gas heat exchanger 8 is a fuel gas inlet end 10, and the other end is communicated with combustion gas air admission hole 5 by tracheae; Heat exchanger tube one end of combustion air heat exchanger 9 is a combustion air inlet end 11, and the other end is communicated with combustion air air admission hole 6.The heat exchanging chamber wall of combustion gas heat exchanger 8 is provided with burning gases air admission hole I 13 and burning gases venthole II 14, combustion air heat exchanger 9 is provided with burning gases air admission hole II 15 and burning gases venthole III 16, burning gases venthole I 7 is communicated with burning gases air admission hole I 13 and burning gases air admission hole II 15 by flue respectively, and burning gases venthole II 14 is communicated with burning gases air admission hole II 15 by flue.
On flue that burning gases venthole I 7 is communicated with burning gases air admission hole II 15 and burning gases venthole II 14 and flue that burning gases air admission hole II 15 is communicated with, be respectively equipped with flow control valve 17.Utilize the flow control valve of installing in the flue 17 to regulate the flow of two flue internal combustion gases, thereby the preheat temperature of control fuel gas, make the temperature of mist in combustion gas heat exchanger outlet temperature, the hybrid chamber all be lower than ignition temperature, prevent that fuel gas from burning before entering combustion chamber.
Be fixed with the blast cap 18 of blind hole structure on the exhaust vent of air distribution plate 2, the sidewall of blast cap 18 is provided with blast cap aperture 19, and the exhaust vent of air distribution plate 2, blast cap aperture 19 and combustion chamber 4 are communicated with successively.Blast cap 18 adopts blind hole structure, blast cap aperture 19 is located on the sidewall of blast cap 18, the sand grains that can avoid playing the pre-heat effect of circulation enters in the hybrid chamber 3 by the exhaust vent of air distribution plate 2, upwards the mist that flows blast cap aperture 19 from the sidewall is gone out the sand grains that also helps draging on the air distribution plate 2 plate faces, it is more abundant that it is mixed with mist, and heat-transfer effect is better.
When using this fluidized reactor, feed fuel gas from the fuel gas inlet end 10 of combustion gas heat exchanger 8, feed combustion air from the combustion air inlet end 11 of combustion air heat exchanger 9, fuel gas and combustion air enter in the hybrid chamber 3 by tracheae after heat exchange, air outlet and the blast cap aperture 19 from blast cap 18 of abundant mixed gas by air distribution plate 2 gone out and entered combustion chamber 4 in hybrid chamber 3, the sand grains 12 that has draged simultaneously on the air distribution plate 2 plate faces moves upward, when sand grains 12 moves upward with mixed airflow and the heat transferred mist of self.After the temperature of mist reaches the combustible component ignition point, combustible component in the gas and the reaction of oxygen generation combustion oxidation, emit heat, part heat transferred sand grains, but because the effect of gravity, the high temperature sand grains that is taken to combustion chamber 4 internal upper parts by air-flow just falls back on the air distribution plate 2 along the chamber wall, and the condition of catching fire with smooth combustion is provided for low-concentration combustible gas.Gaseous product after the combustion reaction is entered in the heat exchanging chamber of combustion gas heat exchanger 8 and combustion air heat exchanger 9 respectively by flue, and carry out heat exchange with fuel gas and combustion air in the heat exchanger tube, with heat transferred fuel gas and combustion air, with after burning gases venthole III16 on the combustion air heat exchanger 9 get rid of.
Fluidized reactor both can be used as combustion reaction device, can be used as regenerative apparatus again, not only be fit to the burning of the gaseous fuel of general low concentration, also can on air distribution plate, place sand grains and catalyst granules, can make the fuel gas smooth combustion of super low concentration, and have stronger flame stabilization ability, a wider load adjustable range.When working under normal pressure, fluidized reactor not only can make gas combustion complete, and self structure is simple, long service life.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. fluidized reactor, comprise reactor shell (1), described reactor shell (1) is divided into hybrid chamber (3) and combustion chamber (4) by air distribution plate (2), hybrid chamber (3) is provided with combustion gas air admission hole (5) and combustion air air admission hole (6), and combustion chamber (4) is provided with burning gases venthole I (7); It is characterized in that: also comprise combustion gas heat exchanger (8) and combustion air heat exchanger (9), heat exchanger tube one end of combustion gas heat exchanger (8) is fuel gas inlet end (10), the other end is communicated with combustion gas air admission hole (5), heat exchanger tube one end of combustion air heat exchanger (9) is combustion air inlet end (11), and the other end is communicated with combustion air air admission hole (6); Described burning gases venthole I (7) is communicated with the heat exchanging chamber of combustion gas heat exchanger (8) and combustion air heat exchanger (9) respectively.
2. fluidized reactor according to claim 1, it is characterized in that: the heat exchanging chamber wall of described combustion gas heat exchanger (8) is provided with burning gases air admission hole I (13) and burning gases venthole II (14), described combustion air heat exchanger (9) is provided with burning gases air admission hole II (15) and burning gases venthole III (16), described burning gases venthole I (7) is communicated with burning gases air admission hole I (13) and burning gases air admission hole II (15) respectively, and described burning gases venthole II (14) is communicated with burning gases air admission hole II (15).
3. fluidized reactor according to claim 2 is characterized in that: be respectively equipped with flow control valve (17) on pipeline that burning gases venthole I (7) is communicated with burning gases air admission hole II (15) and burning gases venthole II (14) and pipeline that burning gases air admission hole II (15) is communicated with.
4. according to the described fluidized reactor of each claim in the claim 1 to 3, it is characterized in that: the blast cap (18) that is fixed with blind hole structure on the exhaust vent of described air distribution plate (2), the sidewall of blast cap (18) is provided with blast cap aperture (19), and the exhaust vent of described air distribution plate (2), blast cap aperture (19) and combustion chamber (4) are communicated with successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202074396U CN201565298U (en) | 2009-11-30 | 2009-11-30 | Fluidized reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202074396U CN201565298U (en) | 2009-11-30 | 2009-11-30 | Fluidized reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201565298U true CN201565298U (en) | 2010-09-01 |
Family
ID=42657578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202074396U Expired - Fee Related CN201565298U (en) | 2009-11-30 | 2009-11-30 | Fluidized reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201565298U (en) |
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2009
- 2009-11-30 CN CN2009202074396U patent/CN201565298U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20111130 |