CN1820835A - Conical wall-less effect reactor - Google Patents
Conical wall-less effect reactor Download PDFInfo
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- CN1820835A CN1820835A CN 200610009646 CN200610009646A CN1820835A CN 1820835 A CN1820835 A CN 1820835A CN 200610009646 CN200610009646 CN 200610009646 CN 200610009646 A CN200610009646 A CN 200610009646A CN 1820835 A CN1820835 A CN 1820835A
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Abstract
The present invention relates to conic reactor without wall effect applied in circular fluidizing bed boiler, catalytically cracking reactor, fume desulfurizing tower and other fields. The conic reactor without wall effect includes a truncated cone-shaped reactor body, gas inlet and gas-liquid mixture inlet in the bottom of the reactor body, and outlet located in the top of the reactor body. The conic reactor has reasonable conic angle, increased radial mixing between gas and grains, increased retaining period of grains inside the reactor, favorable reaction and combustion of the grains inside the reactor, and no bad gas short and backmixing caused by 'ring-core flowing' like that in cylindrical reactor.
Description
Technical field
The present invention relates to a kind of wall-less effect reactor that is applied to fields such as CFBB, catalyst cracker and fume desulfurizing tower.
Background technology
The two-phase reactor that is applied to fields such as CFBB, catalyst cracker and fume desulfurizing tower is being brought into play great function at the energy, environmental protection and chemical field.At present, the main part of above-mentioned gas-solid two-phase reactor mostly adopts the straight barrel type design, and promptly the axial cross section area equates.Solid particle presents that the center is rare, the non-uniform Distribution structure of Bian Binong in the reactor under the high-speed gas mobilization, and generation wall attachment effect, particle speed is higher in reactor center, radially reduce gradually, less near wall place, reactor limit gas speed, or the particle internal circulating load when big particle move downward with lower speed, be referred to as " ring-nuclear " flow pattern; Present simultaneously along height for reactor direction bottom and flow for high concentration particle, the top is that low concentrations of particulates flows.Will cause the gas-particle mixed performance low like this, gas short circuit, solid back-mixing are serious, reduce the reaction efficiency of reactor.
Summary of the invention
Low for solving the existing existing gas-particle mixed performance of straight barrel type reactor body, gas short circuit, solid back-mixing are serious, the problem that the reaction efficiency of reactor is low, and then a kind of conical wall-less effect reactor is provided.The present invention includes reactor body 1, gas access 2, gas, solid mixture inlet 3 and export 4, gas access 2 and gas-solid mixture inlet 3 are positioned at the bottom of reactor body 1, and outlet 4 is positioned at the top of reactor body 1, and reactor body 1 is a truncated cone.
The course of work of conical wall-less effect reactor of the present invention is as follows: gas is sent into from the gas access 2 of bottom centre, and gas and solid particle mixture are sent into from gas, the solid mixture inlet 3 of two bottom sides; Owing to the wall effect of convergent from the bottom to top, radial velocity component increases with the increase at inclination angle in cone-shaped reactor main body 1, and radially the gas-solid perturbation action between is strengthened, and can quicken the alternate reaction of gas-solid, thereby improves reaction efficiency; Reacted gas-solid mixture is from top exit 4 outputs.Gas, solid mixture inlet 3 can evenly be introduced from the both sides of reactor bottom, and perhaps local some points are introduced.Outlet 4 can evenly be drawn from reactor head, also can draw by local some points.
Reactor body of the present invention 1 adopts the convergent flow area, increases the truncated cone of gas flow rate gradually, it compared with prior art has the following advantages: " ring-nuclear " that 1. can reduce or eliminate in the reactor flows, reduce the generation of phenomenons such as caused gas short circuit, particle (as catalyst, lime stone etc.) back-mixing because " ring-nuclear " flows, simultaneously, gas can not produce the phenomenon of short circuit in flow process; 2. increase gas and radial particle velocity component, the gas-solid perturbation action between making is radially strengthened, and can eliminate wall attachment effect, eliminates that " ring-nuclear " flows in the column with constant cross sections shaped reaction device, simultaneously, and the alternate reaction of acceleration gas-solid, raising reaction rate; 3. the inwall that tilts of reactor can increase the time of staying of particle in reactor, helps particle and reacts fully in reactor or burn; 4. can strengthen the abundant reaction that gas-solid contact, mixing, turbulence effect realize that gas-solid two is alternate, help mixing of gas and particle, improve reaction efficiency greatly.Contrast cylindricality reactor, wall-less effect cone-shaped reactor can make particle better reaction in reactor easily, improve reaction rate, have reduced consequences such as reaction efficiency that agglomeration of particles brings is low.
Description of drawings
Fig. 1 is a structural representation of the present invention, Fig. 2 is instantaneous (t=35.0s, t=40.0s, t=45.0s) granule density schematic diagram in the cylindricality reactor, Fig. 3 is instantaneous (t=35.0s, t=40.0s, t=45.0s) granule density schematic diagram in taper (α=0.3 °) wall-less effect reactor, and Fig. 4 is at gas access speed Ug=3.0m/s, mass flow Gs=82.5Kg/m
2Under the condition of s, the granule density in cross section, y/h=1/3 place is along reactor distribution map (when α is respectively 0 °, 0.3 °, 0.5 °) radially, and Fig. 5 is at gas access speed Ug=3.0m/s, mass flow Gs=82.5Kg/m
2Under the condition of s, the granule density in cross section, y/h=2/3 place is along reactor distribution map (when α is respectively 0 °, 0.3 °, 0.5 °) radially, and Fig. 6 is at gas access speed Ug=3.0m/s, mass flow Gs=82.5Kg/m
2Under the condition of s, the radial particle velocity in cross section, y/h=1/3 place is along reactor distribution map (when α is respectively 0 °, 0.3 °, 0.5 °) radially, and Fig. 7 is at gas access speed Ug=3.0m/s, mass flow Gs=82.5Kg/m
2Under the condition of s, the radial particle velocity in cross section, y/h=2/3 place is along reactor distribution map (when α is respectively 0 °, 0.3 °, 0.5 °) radially, and wherein y/h is the height of the selected sectional position of test and the ratio of reactor monolith height.Fig. 8 is the structural representation of the specific embodiment five, Fig. 9 is the structural representation of the specific embodiment six, Figure 10 is the structural representation of the specific embodiment seven, Figure 11 is the structural representation of the specific embodiment eight, Figure 12 is the structural representation of the specific embodiment nine, Figure 13 is the structural representation of the specific embodiment ten, and Figure 14 is the structural representation of the specific embodiment 11.
Among Fig. 4-Fig. 7---the numerical value line when representing α=0 °,
Numerical value line when representing α=0.3 °,
Numerical value line during---represent α=0.5 °.
The specific embodiment
The specific embodiment one: (referring to Fig. 1) present embodiment comprises reactor body 1, gas access 2, gas, solid mixture inlet 3 and exports 4, the bottom that the gas access is 2 gentle, solid mixture inlet 3 is positioned at reactor body 1, outlet 4 is positioned at the top of reactor body 1, reactor body 1 is a truncated cone, and the cone angle of reactor body 1 is 0.3~10 degree.
The specific embodiment two: the difference of (referring to Fig. 1, Fig. 2, Fig. 3) present embodiment and the specific embodiment one is that the cone angle of described reactor body 1 is 0.3 degree.Other composition is identical with the specific embodiment one with annexation.As shown in Figures 2 and 3, in reference column shaped reaction device and taper (α=0.3 °) wall-less effect reactor instantaneous (t=35.0s, t=40.0s, t=45.0s) granule density we can find, " ring-nuclear " of the particle in the conical wall-less effect reactor flows and significantly weakens, will reduce the wearing and tearing that particle is caused washing away of wall like this to wall, simultaneously, it can also be seen that from figure gas can not produce the phenomenon of short circuit in flow process.
The specific embodiment three: the difference of (referring to Fig. 1, Fig. 4, Fig. 5, Fig. 6, Fig. 7) present embodiment and the specific embodiment one is that the cone angle of described reactor body 1 is 0.5 degree.Other composition is identical with the specific embodiment one with annexation.
As shown in Figure 4 and Figure 5, at gas access speed Ug=3.0m/s, mass flow Gs=82.5Kg/m
2Under the condition of s, granule density to y/h=1/3 and cross section, y/h=2/3 two place shows along reactor distribution test data radially, along with cone angle increases and is tending towards even, can strengthen the abundant reaction that gas-solid contact, mixing, turbulence effect realize that gas-solid two is alternate, help mixing of gas and particle.As shown in Figure 6 and Figure 7, at gas access speed Ug=3.0m/s, mass flow Gs=82.5Kg/m
2Under the condition of s, radial particle velocity to y/h=1/3 and cross section, y/h=2/3 two place shows along reactor distribution test data radially, along with cone angle increases, when fluid when the bottom enters because particle is subjected to the horizontal influence of wall, the change gradually of radial gas and particle speed component is big, gas-solid perturbation action is radially strengthened, can eliminate wall attachment effect, eliminate column with constant cross sections shaped reaction device interior " ring-nuclear " and flow, quicken the alternate reaction of gas-solid.
The specific embodiment four: the difference of (referring to Fig. 1) present embodiment and the specific embodiment one is that the cone angle of described reactor body 1 is 1.7 degree, described gas, solid mixture inlet 3 are positioned at the left and right sides of reactor lower curtate to be introduced, and draw outlet 4 both sides that are positioned at reactor head.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment five: the difference of (referring to Fig. 8) present embodiment and the specific embodiment one is that the cone angle of described reactor body 1 is 3.5 degree, described gas, solid mixture inlet 3 are positioned at the reactor lower curtate evenly to be introduced, and outlet 4 is positioned at reactor head and evenly draws.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment six: the difference of (referring to Fig. 9) present embodiment and the specific embodiment one is that the cone angle of described reactor body 1 is 3.6 degree, described gas, solid mixture inlet 3 are positioned at the left and right sides of reactor lower curtate to be introduced, and outlet 4 is positioned at reactor head and evenly draws.Other composition and annexation and concrete
Embodiment one is identical.
The specific embodiment seven: the difference of (referring to Figure 10) present embodiment and the specific embodiment one is that the cone angle of described reactor body 1 is 5 degree, described gas, solid mixture inlet 3 are positioned at the one-sided introducing of reactor lower curtate, and outlet 4 is positioned at reactor head and evenly draws.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment eight: the difference of (referring to Figure 11) present embodiment and the specific embodiment one is that the cone angle of described reactor body 1 is 6.2 degree, described gas, solid mixture inlet 3 are positioned at the reactor lower curtate evenly to be introduced, and draw the outlet 4 one-sided parts that are positioned at reactor head.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment nine: the difference of (referring to Figure 12) present embodiment and the specific embodiment one is that the cone angle of described reactor body 1 is 6.3 degree, described gas, solid mixture inlet 3 are positioned at the left and right sides of reactor lower curtate to be introduced, and draw the outlet 4 one-sided parts that are positioned at reactor head.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment ten: the difference of (referring to Figure 13) present embodiment and the specific embodiment one is that the cone angle of described reactor body 1 is 8 degree, described gas, solid mixture inlet 3 are positioned at the one-sided introducing of reactor lower curtate, and draw the outlet 4 one-sided parts that are positioned at reactor head.Other composition and annexation and
The specific embodiment one is identical.
The specific embodiment 11: the difference of (referring to Figure 14) present embodiment and the specific embodiment one is that the cone angle of described reactor body 1 is 10 degree, described gas, solid mixture inlet 3 are positioned at the reactor lower curtate evenly to be introduced, and draw outlet 4 both sides that are positioned at reactor head.Other composition and annexation and concrete
Embodiment one is identical.
Claims (5)
1, conical wall-less effect reactor, it comprises reactor body (1), gas access (2), gas, solid mixture inlet (3) and outlet (4), gas access (2) and gas-solid mixture inlet (3) are positioned at the bottom of reactor body (1), outlet (4) is positioned at the top of reactor body (1), it is characterized in that reactor body (1) is a truncated cone.
2, conical wall-less effect reactor according to claim 1, the cone angle of the described reactor body (1) that it is characterized in that are 0.3~10 degree.
3, conical wall-less effect reactor according to claim 1, the cone angle of the described reactor body (1) that it is characterized in that are 0.3~3.5 degree.
4, conical wall-less effect reactor according to claim 1, the cone angle of the described reactor body (1) that it is characterized in that are 3.6~6.2 degree.
5, conical wall-less effect reactor according to claim 1, the cone angle of the described reactor body (1) that it is characterized in that are 6.3~10 degree.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101219356B (en) * | 2007-10-09 | 2010-05-19 | 褚开维 | S-type fluid bed |
CN105400528A (en) * | 2014-09-16 | 2016-03-16 | 王开辉 | Rapid rice husk pyrolysis apparatus and matching system thereof |
CN108654526A (en) * | 2017-04-01 | 2018-10-16 | 中国石油大学(华东) | A kind of reactor and preparation method of the dehydrating alkanes alkene reducing back-mixing |
CN109675505A (en) * | 2019-02-24 | 2019-04-26 | 中国科学院青岛生物能源与过程研究所 | A kind of fluidized-bed reactor tedge of pantograph structure |
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JPS5990623A (en) * | 1982-11-12 | 1984-05-25 | Mitsubishi Heavy Ind Ltd | Moving bed type solid-gas contact reaction device having distributor |
CN2353429Y (en) * | 1997-11-28 | 1999-12-15 | 北京泽华化学工程有限公司 | Tower plate with plate net cover |
ATE276992T1 (en) * | 1999-08-30 | 2004-10-15 | Mossi & Ghisolfi Int Sa | METHOD FOR RECOVERING DISPROPORTIONING REACTION PRODUCTS |
FI107164B (en) * | 1999-11-04 | 2001-06-15 | Valtion Teknillinen | Method and equipment for purifying product gas from a gasification reactor |
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2006
- 2006-01-20 CN CNB2006100096461A patent/CN100427199C/en active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101219356B (en) * | 2007-10-09 | 2010-05-19 | 褚开维 | S-type fluid bed |
CN105400528A (en) * | 2014-09-16 | 2016-03-16 | 王开辉 | Rapid rice husk pyrolysis apparatus and matching system thereof |
CN108654526A (en) * | 2017-04-01 | 2018-10-16 | 中国石油大学(华东) | A kind of reactor and preparation method of the dehydrating alkanes alkene reducing back-mixing |
CN109675505A (en) * | 2019-02-24 | 2019-04-26 | 中国科学院青岛生物能源与过程研究所 | A kind of fluidized-bed reactor tedge of pantograph structure |
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Owner name: HARBIN HARBIN BOILER BOILER ENGINEERING TECHNOLOGY Free format text: FORMER NAME: HARBIN INSTITUTE OF TECHNOLOGY |
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Address after: Haping Road Development Zone in Harbin City, Heilongjiang province 150000 District Jingbo Road No. 11 Patentee after: Harbin Haguo Boiler Engineering Technology Co., Ltd. Address before: 150001 Harbin, Nangang, West District, large straight street, No. 92 Patentee before: Harbin Institute of Technology |