CN204018021U - A kind of flue gas even distribution device - Google Patents
A kind of flue gas even distribution device Download PDFInfo
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- CN204018021U CN204018021U CN201420481689.XU CN201420481689U CN204018021U CN 204018021 U CN204018021 U CN 204018021U CN 201420481689 U CN201420481689 U CN 201420481689U CN 204018021 U CN204018021 U CN 204018021U
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- flue gas
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 250
- 239000003546 flue gas Substances 0.000 title claims abstract description 250
- 238000009826 distribution Methods 0.000 title claims abstract description 94
- 239000007789 gas Substances 0.000 claims description 32
- 238000010276 construction Methods 0.000 claims description 20
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 238000013016 damping Methods 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 31
- 239000000428 dust Substances 0.000 abstract description 14
- 239000012716 precipitator Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 239000000779 smoke Substances 0.000 abstract description 9
- 230000003009 desulfurizing effect Effects 0.000 abstract description 7
- 238000006477 desulfuration reaction Methods 0.000 abstract description 4
- 230000023556 desulfurization Effects 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 abstract description 4
- 230000004907 flux Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000003517 fume Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a kind of flue gas even distribution device, comprise upper strata flue gas even distribution structure, middle level flue gas governing system, lower layer support and water guide structure, and control device.Flue gas by central flue gas deceleration device, forces flue gas in tower by the middle section of Relatively centralized to the poor regional diffusion of surrounding smoke distribution; By edge flue gas speeder, the flow of flue gas of marginal position is accelerated, flue gas is uniformly distributed in desulfurizing tower.And by the inverted Y-shaped structure bottom the flue gas even distribution flase floor of middle level, to the effect that flue gas generation flow-disturbing is broken up.By upper strata flue gas even distribution flase floor, the flue gas forming eddy flow because of fan effect is broken up again, carry out secondary current-sharing, strengthen uniform effect further.The utility model is applicable to flue gas even distribution situation when improving the large flux flue gas of process, such as with the flue gas even distribution situation of tower integral type wet electrical dust precipitator in wet flue gas desulfurization tower inside, and best uniform effect can be reached according to the speed-regulating fan adjustment of actual conditions to flue gas even distribution device.
Description
Technical field
The utility model relates to large flux fume treatment technical field, espespecially a kind of flue gas even distribution device.
Background technology
Increasingly strict along with environment protection treating standard, the fields such as domestic electrical, coloured and iron and steel adopt increasing of wet desulphurization project, and " gypsum rain " phenomenon is frequently existing, and such as the PM2.5 discharge of terminal particle exceeds standard, and impacts surrounding environment, health risk.Due to the enforcement of new GB 13223 " fossil-fuel power plant atmospheric pollutant emission standard ", and starting in the part power plant of East Coastal the ultralow clean discharge advocating coal steam-electric plant smoke, the power plant of current domestic employing wet desulphurization all faces the pressure of terminal processes transformation after its desulfurization.
Wet electrical dust precipitator as effectively alleviating flyash fine grained, gypsum fine grained, and effectively reduces PM2.5 fine particulates to one of important technology of the harm that health is brought, and has now obtained popularization progressively in fields such as electric power, coloured and iron and steel.
With the important kind that tower integral type wet electrical dust precipitator is wet electrical dust precipitator, belong to the one of vertical current wet electrical dust precipitator, the terminal processes effect of flue gas even distribution effect to wet electrical dust precipitator in tower of its inside has a significant impact.
But wet desulphurization ubiquity desulfurizing tower inside smoke central part in tower is assembled at present, and middle part flue gas flow rate is high, the situation that surrounding flue gas flow rate is lower, causes the uniform poor effect of desulfurizing tower inside smoke.Although the desulfurization spraying layer in the middle part of tower and the mechanical type demister of top thereof can have certain uniform effect to flue gas, its limited efficiency.Flue gas will be caused like this to enter the wet electrical dust precipitator on desulfurizing tower top after, the situation of dust removal process poor effect.Particularly, very easily cause the concentration of local of flue gas, exceed the instantaneous disposal ability of the wet electrical dust precipitator of this local location, and occur that fine particle and droplet are easily swept along out the situation of desulfurizing tower by the flue gas of high flow velocities, enter air by chimney, pollute.
Except above-mentioned wet-esp field, also there is the situation that the treatment effect that causes because flue gas even distribution is not good is bad in other large flux fume treatment fields similarly.Therefore, need to consider can strengthen airflow uniform distribution effect in the application of large flux flue gas field and improve the even distribution device of follow-up fume treatment effect.
Utility model content
The purpose of this utility model is to provide a kind of flue gas even distribution device, can improve the uniform effect of air-flow, and then improves the subsequent treatment effect of flue gas.
In order to achieve the above object, the technical scheme that provides of the utility model is as follows:
A kind of flue gas even distribution device, comprising:
Upper strata flue gas even distribution structure, it comprises multiple the first uniform gas channel;
Middle level flue gas governing system, it is located at the below of described upper strata flue gas even distribution structure, comprises for reducing the central flue gas deceleration device of central flue gas flow rate and the edge flue gas speeder for improving edge flue gas flow rate;
Underlying support structure, it is located at below the flue gas governing system of described middle level, for supporting described upper strata flue gas even distribution structure and described middle level flue gas governing system;
Control system, it is connected with described central flue gas deceleration device and described edge flue gas speeder, reduces the speed of central flue gas flow rate for controlling and improves the speed of edge flue gas flow rate.
Described central flue gas deceleration device comprises one or more deceleration fan, and the first speed regulating structure; Described edge flue gas speeder comprises the multiple speedup fans being located in described deceleration fan surrounding, and the second speed regulating structure;
Described first speed regulating structure is connected with described control system respectively with described second speed regulating structure.
Described deceleration fan wind direction is upon actuation contrary with the flow direction of circulation flue gas;
Described speedup fan wind direction is upon actuation identical with the flow direction of circulation flue gas.
Further preferably, described deceleration fan is identical with the blade construction of described speedup fan, and rotation direction is contrary;
Further preferably, described deceleration fan is identical with the rotation direction of described speedup fan, and blade construction is different, and wherein, a blade construction is left-handed, and another blade construction is dextrorotation.
Further preferably, described central flue gas deceleration device is provided with damping unit, blows by circulation flue gas the flow velocity that described damping unit reduces described circulation flue gas.
Further preferably, described middle level flue gas governing system comprises the middle level flue gas even distribution structure with described upper strata flue gas even distribution anatomical connectivity further, and flue gas even distribution structure place, described middle level is located at by described central flue gas deceleration device and edge flue gas speeder;
Around described central flue gas deceleration device and edge flue gas speeder, described middle level flue gas even distribution structure is provided with multiple the second uniform gas channel, and described second gas channel is communicated with described first gas channel.
Further preferably, multiple described first gas channel is equal at the area of section perpendicular to airflow direction;
Further preferably, multiple described second gas channel is equal at the area of section perpendicular to airflow direction;
Further preferably, described first gas channel along airflow direction, from one end to the other side convergent;
Further preferably, described second gas channel along airflow direction, from one end to the other side convergent;
Further preferably, described upper strata flue gas even distribution structure is flase floor;
Further preferably, described middle level flue gas even distribution structure is flase floor.
Further preferably, described middle level flue gas even distribution structure is flase floor, and often place's grid is being inverted Y-shaped structure along the cross section of airflow direction, and the opening of this inverted Y-shaped structure is towards the entrance setting of circulation flue gas, and bottom is close to described upper strata flue gas even distribution vibrational power flow.
Further preferably, described underlying support structure is provided with the first guiding gutter and the second guiding gutter; Wherein, described first guiding gutter is located at the below of described central flue gas deceleration device, and described second guiding gutter is located at the below of described edge flue gas speeder;
Further preferably, described control system comprises multiple pneumatic sensor for monitoring middle part and edge air-flow velocity everywhere, and described control system regulates the rotating speed of described deceleration fan and described speedup fan according to the air-flow velocity data that described pneumatic sensor monitors.
The utility model additionally provides a kind of flue gas even distribution method, adopts flue gas even distribution device as the aforementioned, comprising:
The circulation flue gas of middle section is slowed down, and the circulation flue gas in edge region carries out speedup;
And make the circulation flue gas in each region flow through uniform gas channel.
By a kind of flue gas even distribution device that the utility model provides, following at least one beneficial effect can be brought:
1. can improve the uniform effect of air-flow.The utility model reduces the flow velocity of middle section flue gas by central flue gas deceleration device, forces flue gas by the middle section of Relatively centralized to the poor regional diffusion of surrounding smoke distribution; And by edge flue gas speeder, the flow of flue gas of marginal position is accelerated.By the interaction of above-mentioned central flue gas deceleration device and edge flue gas speeder, flow of flue gas is everywhere made to be tending towards balanced and to be uniformly distributed (such as in wet electrical dust precipitator).The flue gas that effect because of deceleration device and speeder is formed eddy flow by the first gas channel be provided with by upper strata flue gas even distribution structure is again broken up, and flue gas is carried out current-sharing, strengthens uniform effect further.
2. improve the uniform effect of air-flow further.The utility model also can arrange middle level flue gas even distribution structure further, and flue gas even distribution structure place, middle level is located at by central flue gas deceleration device and edge flue gas speeder, and around the two, arrange the second uniform gas channel, carries out current-sharing in advance to partial fume.Flue gas even distribution structure in middle level can be set to grating board structure in addition, and at the circulating direction along air-flow, this place's flase floor is inverted Y-shaped structure, and the reverse flue gas flow direction of angle is arranged, the effect that can produce flow-disturbing to flue gas, break up, and then the uniform effect improving air-flow.
3. the water on derived type structure, ensures normal operation.Consider from environment for use, flue gas is moisture larger, and a large amount of desulfurization slurry drop can be carried, can deposit in motion process or collision process in each structure of flue gas even distribution device, such as supporting construction and some planes or concave surface, thus the utility model arranges guiding gutter by the extraction of this part ponding, ensures the normal operation of each structure.
4. Real-Time Monitoring flue gas flow rate, regulates the power of deceleration and speedup, ensures flue gas even distribution effect.Control system of the present utility model by being arranged at the flue gas flow rate of the pneumatic sensor monitoring zones of different at middle part and edge each position, and then regulates speed and the power of deceleration and speedup by adjusting device.Such as, when the flue gas flow rate of central region is larger, the speed of deceleration can be improved, the very fast flow velocity reducing middle part flue gas, and this place's flue gas is disperseed to edge; When the flue gas flow rate of fringe region is less, the speed of speedup can be improved, the very fast flow velocity improving edge flue gas, and then middle part flue gas is disperseed to edge fast.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is that reducing of the present utility model arranges uniform device upper strata schematic top plan view;
Fig. 2 reducing arranges uniform device lower floor schematic top plan view;
Fig. 3 reducing arranges uniform device schematic side view;
Fig. 4 isometrical layout uniform device upper strata schematic top plan view;
Fig. 5 isometrical layout uniform device lower floor schematic top plan view;
Fig. 6 isometrical layout uniform device schematic side view;
Fig. 7 V-type and U-shaped guiding gutter and flue gas flow direction schematic diagram;
Fig. 8 rectangle and rhombus flue gas even distribution flase floor schematic diagram;
Fig. 9 middle level flue gas even distribution flase floor rip cutting schematic cross-section;
Drawing reference numeral illustrates:
1, upper strata flue gas even distribution flase floor; 2, middle level flue gas even distribution flase floor; 3, deceleration fan; 4, speedup fan; 5, the first speed regulating structure; 6, the second speed regulating structure; 7, bracing frame; 8, brace summer; 9, the first guiding gutter; 10, the second guiding gutter.
Detailed description of the invention
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
In embodiment one of the present utility model, with reference to Fig. 1, Fig. 2, Fig. 3, flue gas even distribution device comprises upper strata flue gas even distribution structure, middle level flue gas governing system, underlying support structure and control system, and in use, flue gas flows through middle level flue gas governing system and upper strata flue gas even distribution structure successively.Upper strata flue gas even distribution vibrational power flow has multiple the first uniform gas channel, middle level flue gas governing system is located at the below of upper strata flue gas even distribution structure, and be provided with central flue gas deceleration device and edge flue gas speeder, the flue gas that middle section is assembled can be reduced like this, improve the flue gas of fringe region, force flue gas by the middle section of Relatively centralized to the poor regional diffusion of surrounding smoke distribution, improve the uniform effect of flue gas.Further, after flue gas flows through middle level flue gas governing system, flow through the first uniform gas channel at flue gas even distribution structure place, upper strata, the flue gas that further deceleration and acceleration can also be formed eddy flow is broken up, and obtains better airflow uniform distribution effect.Further, the underlying support structure arranged in embodiment one is arranged at below the flue gas governing system of middle level, and for supporting the structure on upper strata and middle level, make structure more stable, also when flue gas even distribution device of the present utility model is applied to other external structures (such as wet electrical dust precipitator etc.), the installation between structure can be completed by supporting construction simultaneously.Except said structure, also comprise control system further in embodiment one, it is mainly used in the speed and the power that control the central flue gas flow rate of reduction, and improves the speed of edge flue gas flow rate, realizes the balance of the uniform and flow velocity of air-flow everywhere; Particularly, can be realized with the connection (electrical connection) between central flue gas deceleration device and edge flue gas speeder by control system.
In embodiment two of the present utility model, central flue gas deceleration device deceleration fan realizes, and flue gas speeder speedup fan in edge realizes.Particularly, deceleration fan can be one or more, such as, four deceleration fans 3 in Fig. 2, Fig. 3, Fig. 5, Fig. 6, and is arranged at middle section or central region; Speedup fan is multiple, such as, 16 speedup fans 4 in Fig. 2, Fig. 3, Fig. 5, Fig. 6, and is located in the surrounding of deceleration fan, arranges ringwise or other arrangements, specifically adjusts according to the shape of the applied environment of flue gas even distribution device.Because the smoke distribution of middle section is comparatively concentrated, density is large, and the length of blade of the fan that thus slows down is preferably greater than the length of blade of speedup fan, can produce larger wind-force, forcing the flue gas of middle section to disperse to surrounding fast when rotating.Preferably, in order to obtain better flue gas even distribution effect, with reference to Fig. 3 and Fig. 6, first speed regulating structure 5 can be set at deceleration fan place, second speed regulating structure 6 is set at speedup fan place, and the two is connected with control system respectively, the rotating speed of deceleration fan and speedup fan can be regulated so respectively, can be such as according to regulating according to the air-flow velocity monitored or turbulence level, and then it is more even that smoke distribution is obtained.Preferably, the first speed regulating structure can be damping fan speed adjusting device, can speed governing flexibly.Preferably, multiple pneumatic sensor for monitoring middle part and edge air-flow velocity everywhere can be set, control system controls to adjust the rotating speed of deceleration fan and speedup fan according to the air-flow velocity data that pneumatic sensor monitors, and multiple pneumatic sensor can be arranged at flue gas even distribution structure place, upper strata respectively.
In above-described embodiment two, preferably, deceleration fan, by the flow direction contrary object that realize slow down of wind direction upon actuation with circulation flue gas, makes the circulation flue gas involuntary speed reduction of middle section; Speedup fan, by the flow direction identical object that realize speedup of wind direction upon actuation with circulation flue gas, makes the passive speedup of circulation flue gas of fringe region.Further preferably, for the ease of realizing the above-mentioned deceleration fan relation contrary with the wind direction between speedup fan, the blade construction that can arrange the two is identical, rotation direction is contrary; The rotation direction that also can arrange the two is identical, blade construction is different, and wherein, when the blade construction of deceleration fan is left-handed, the blade construction of speedup fan is dextrorotation; When the blade construction of deceleration fan is dextrorotation, the blade construction of speedup fan is left-handed.
In above-described embodiment one, preferably, central flue gas deceleration device also can be realized by damping structure, and fan also can be selected to add the structure of damping; Edge flue gas speeder also can be realized by other exhausting or air extraction structure, and fan also can be selected to add this exhausting or air extraction structure.In concrete use, blow damping by flue gas, make damping rotary or motion realize the deceleration of flue gas.
On the basis of embodiment one, preferably, middle level flue gas governing system comprises the middle level flue gas even distribution structure with upper strata flue gas even distribution anatomical connectivity further, and flue gas even distribution structure place, middle level is located at by central flue gas deceleration device and edge flue gas speeder; Around central flue gas deceleration device and edge flue gas speeder, middle level flue gas even distribution structure is provided with multiple the second uniform gas channel, and the second gas channel is communicated with the first gas channel.Arrange middle level flue gas even distribution structure to be dredged in advance flue gas by the second gas channel, to disperse and uniform, better uniform effect can be obtained.
In embodiment of the present utility model, upper strata flue gas even distribution structure and middle level flue gas even distribution structure can be arranged by integral forming, also can weld after the two respective shaping.Particularly, the two can pass through flase floor (with reference to the upper strata flue gas even distribution flase floor 1 in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and middle level flue gas even distribution flase floor 2) and realize, be provided with equally distributed grate opening above, structure is simple, except being convenient to combing flue gas, also can not cause resistance to the flowing of flue gas.Preferably, multiple first gas channels in the flue gas even distribution structure of upper strata are equal at the area of section perpendicular to flow of flue gas direction, can be understood as, and the flue gas circulation area of each grate opening of flase floor is equal.Second gas channel is identical with the above-mentioned principle of the first gas channel, and preferably, the two circulation area is also equal.And preferably, first gas channel and/or the second gas channel are keep from one end of passage to the other end structure that the circulation area of air-flow is always equal, such as with reference in Fig. 4, Fig. 5, Fig. 6 etc. the embodiment of gauge structure, it is the scheme of uniform sizes at this installation site holding structure that such structure is applicable to the external equipment that flue gas even distribution device installs.Simultaneously, in order to adapt to the use of the external equipment becoming size (reducing), can by the first gas channel and the second gas channel in the structure being set to from one end to the other side convergent along airflow direction, can refer to the embodiment of the variable-diameter structure in Fig. 1, Fig. 2, Fig. 3, such as, the inclination angle in upper strata flue gas even distribution flase floor and middle level flue gas even distribution flase floor and airflow direction can be set to 0-60 °, between the plate of flase floor, spacing dimension is 20-200mm, and grid plate hole can be rectangle or rhombus, with reference to Fig. 9.Concrete convergent yardstick can adjust according to practical structures.Meanwhile, in order to adapt to the use of flue gas even distribution device in the equipment of difformity structure, the coupling on outer contour shape can be carried out according to concrete structure.
In an embodiment of the present utility model, middle level flue gas even distribution structure is flase floor, and often place's grid is being inverted Y-shaped structure along the cross section of airflow direction, can refer to Fig. 7, and the opening of this inverted Y-shaped structure is towards the entrance setting of circulation flue gas, namely the reverse flue gas flow direction of angle is arranged, and bottom is close to described upper strata flue gas even distribution vibrational power flow.The opening angle of this inverted Y-shaped structure can be 30-150 °.Flue gas flows through the opening of this inverted Y-shaped structure, breaks up in advance and after wake turbulence to flue gas, then flows through upper strata flue gas even distribution structure.Except inverted Y-shaped structure, the cell structure with many openings or many bifurcateds also can be applied in the utility model, and what realize air-flow breaks up effect in advance.
In an embodiment of the present utility model, with reference to Fig. 2, Fig. 3, Fig. 5, Fig. 6, underlying support structure is provided with the first guiding gutter 9 and the second guiding gutter 10; Wherein, described first guiding gutter is located at the below of described central flue gas deceleration device, and described second guiding gutter is located at the below of described edge flue gas speeder, draws the ponding that supporting construction is deposited respectively, ensures the normal operation of flue gas even distribution device.Can refer to Fig. 8, two kinds of guiding gutters can be V-type or U-shaped structure, and the upper end spacing of this structure can be 20-150mm.In the utility model, supporting construction can be that bracing frame 7 and brace summer 8 combine formation, can stable support.Meanwhile, supporting construction also can change overhung construction into and realize, and realizes the suspended fixing of upper strata and media layer damage, provides multiple range of application.
In the application of a specific embodiment (being applied to wet electrical dust precipitator) of the present utility model, flue gas even distribution process mainly comprises following process:
Flue gas flows from bottom to top at vertical direction in desulfurizing tower, and first flue gas through sweetening process, flows through flue gas even distribution device described in the utility model, continue to flow into the wet electrical dust precipitator on top after the mechanical demister at former desulfurizing tower top.First flue gas is by the inverted Y-shaped structure bottom the flue gas even distribution flase floor of middle level, the effect of produce flow-disturbing to flue gas, breaing up; Flue gas after breaing up enters middle level flue gas governing system.Under the effect of central flue gas deceleration device (deceleration fan), central flue gas deceleration device forms top-down air-flow and forces flue gas in tower by the middle section of Relatively centralized to the poor regional diffusion of surrounding smoke distribution; Flow velocity slower flue gas in edge produces suction by edge flue gas speeder (speedup fan) makes the flow of flue gas of marginal position accelerate.By the interaction of central flue gas deceleration device and edge flue gas speeder, flue gas is uniformly distributed in wet electrical dust precipitator.Through the flue gas of middle level flue gas governing system under the effect of upper strata flue gas even distribution flase floor, the flue gas forming eddy flow is broken up, and carry out secondary current-sharing because of fan effect, strengthen flue gas even distribution effect further.
Central authorities' flue gas deceleration device is realized by deceleration fan, and edge flue gas speeder is realized by speedup fan.Deceleration fan and speedup fan can regulate by the rotating speed to fan respectively by damping fan speed adjusting device and fan speedup arrangements for speed regulation, its damping fan speed adjusting device by manual setting and automatically setting two kinds of modes rotation speed of the fan set and regulates.
It should be noted that above-described embodiment all can independent assortment as required.The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a flue gas even distribution device, is characterized in that, comprising:
Upper strata flue gas even distribution structure, it comprises multiple the first uniform gas channel;
Middle level flue gas governing system, it is located at the below of described upper strata flue gas even distribution structure, comprises for reducing the central flue gas deceleration device of central flue gas flow rate and the edge flue gas speeder for improving edge flue gas flow rate;
Underlying support structure, it is located at below the flue gas governing system of described middle level, for supporting described upper strata flue gas even distribution structure and described middle level flue gas governing system;
Control system, it is connected with described central flue gas deceleration device and described edge flue gas speeder, reduces the speed of central flue gas flow rate for controlling and improves the speed of edge flue gas flow rate;
Described central flue gas deceleration device comprises one or more deceleration fan, and the first speed regulating structure; Described edge flue gas speeder comprises the multiple speedup fans being located in described deceleration fan surrounding, and the second speed regulating structure;
Described central flue gas deceleration device also can be provided with damping unit, blows by circulation flue gas the flow velocity that described damping unit reduces described circulation flue gas;
Described first speed regulating structure is connected with described control system respectively with described second speed regulating structure;
Described middle level flue gas governing system comprises the middle level flue gas even distribution structure with described upper strata flue gas even distribution anatomical connectivity further, and flue gas even distribution structure place, described middle level is located at by described central flue gas deceleration device and edge flue gas speeder;
Around described central flue gas deceleration device and edge flue gas speeder, described middle level flue gas even distribution structure is provided with multiple the second uniform gas channel, and described second gas channel is communicated with described first gas channel;
Described deceleration fan wind direction is upon actuation contrary with the flow direction of circulation flue gas;
Described speedup fan wind direction is upon actuation identical with the flow direction of circulation flue gas.
2. flue gas even distribution device according to claim 1, is characterized in that:
Described deceleration fan is identical with the blade construction of described speedup fan, and rotation direction is contrary;
Or;
Described deceleration fan is identical with the rotation direction of described speedup fan, and blade construction is different, and wherein, a blade construction is left-handed, and another blade construction is dextrorotation.
3. flue gas even distribution device according to claim 1, is characterized in that:
Multiple described first gas channel is equal at the area of section perpendicular to airflow direction;
And/or;
Multiple described second gas channel is equal at the area of section perpendicular to airflow direction;
And/or;
Described first gas channel along airflow direction, from one end to the other side convergent;
And/or;
Described second gas channel along airflow direction, from one end to the other side convergent;
And/or;
Described upper strata flue gas even distribution structure is flase floor;
And/or;
Described middle level flue gas even distribution structure is flase floor.
4. flue gas even distribution device according to claim 1, is characterized in that:
Described middle level flue gas even distribution structure is flase floor, and often place's grid is being inverted Y-shaped structure along the cross section of airflow direction, and the opening of this inverted Y-shaped structure is towards the entrance setting of circulation flue gas, and bottom is close to described upper strata flue gas even distribution vibrational power flow.
5. flue gas even distribution device according to claim 1, is characterized in that:
Described underlying support structure is provided with the first guiding gutter and the second guiding gutter; Wherein, described first guiding gutter is located at the below of described central flue gas deceleration device, and described second guiding gutter is located at the below of described edge flue gas speeder;
And/or;
Described control system comprises multiple pneumatic sensor for monitoring middle part and edge air-flow velocity everywhere, and described control system regulates the rotating speed of described deceleration fan and described speedup fan according to the air-flow velocity data that described pneumatic sensor monitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420481689.XU CN204018021U (en) | 2014-08-25 | 2014-08-25 | A kind of flue gas even distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420481689.XU CN204018021U (en) | 2014-08-25 | 2014-08-25 | A kind of flue gas even distribution device |
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| CN204018021U true CN204018021U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420481689.XU Expired - Lifetime CN204018021U (en) | 2014-08-25 | 2014-08-25 | A kind of flue gas even distribution device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174498A (en) * | 2014-08-25 | 2014-12-03 | 上海龙净环保科技工程有限公司 | Uniform distributor for flue gas and uniform distribution method of flue gas |
| CN105536372A (en) * | 2016-01-08 | 2016-05-04 | 江苏新中环保股份有限公司 | Automatic smoke equilibrium distributing device |
| CN107694756A (en) * | 2016-12-29 | 2018-02-16 | 大唐环境产业集团股份有限公司 | A kind of airflow uniform distribution applied to wet electrical dust precipitator entrance combines the unit |
-
2014
- 2014-08-25 CN CN201420481689.XU patent/CN204018021U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174498A (en) * | 2014-08-25 | 2014-12-03 | 上海龙净环保科技工程有限公司 | Uniform distributor for flue gas and uniform distribution method of flue gas |
| CN104174498B (en) * | 2014-08-25 | 2016-06-29 | 上海龙净环保科技工程有限公司 | A kind of flue gas even distribution device and flue gas even distribution method |
| CN105536372A (en) * | 2016-01-08 | 2016-05-04 | 江苏新中环保股份有限公司 | Automatic smoke equilibrium distributing device |
| CN107694756A (en) * | 2016-12-29 | 2018-02-16 | 大唐环境产业集团股份有限公司 | A kind of airflow uniform distribution applied to wet electrical dust precipitator entrance combines the unit |
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