CN2238080Y

CN2238080Y - Multipipe rotary separating type water film dust remover for boiler

Info

Publication number: CN2238080Y
Application number: CN 95212705
Authority: CN
Inventors: 赵兴玉
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-07-07
Filing date: 1995-07-07
Publication date: 1996-10-23
Anticipated expiration: 2005-07-07

Abstract

The utility model relates to a multipipe rotary separating type water film dust remover for boilers, which belongs to boiler dust removing devices. A dust removing pipe of the utility model is homogeneously fixed and distributed on a water dividing box. The wall of the pipe is communicated with the water dividing box by a through hole. A spiral guide slice in favor of dust whizzing is arranged in the dust removing pipe. The dust in the dust removing pipe enters along the axial direction of a dust inlet, and also enters along the tangential direction of the radial direction. Because the dust removing pipe has a smaller diameter, the probability of the combination of dust particles and water is increased under the action of whizzing to enhance the effect of removing the dust. The volume of the utility model is smaller than that of a common dust remover, and the material selection is flexible. The cost of the utility model is largely reduced to not bring economic burden for use units. The utility model has lower water consumption, and the corrosion degree of the dust to a pipeline and an induced draft fan is effectively reduced.

Description

Boiler multitube whiz formula water dust scrubber

The utility model relates to the boiler dusting apparatus, particularly a kind of boiler multitube whiz formula water dust scrubber.

Existing boiler dust remover is in the water film dedusting mode a bit, and the dust removing effects of this dedusting method is more satisfactory, but also has following some deficiency:

1, the dust removing tube radius of existing water dust scrubber is excessive, and soot dust granule relies on centrifugal force less with the opportunity that moisture film on this wall combines, and has the part flue dust to discharge at the pipeline middle part, and efficiency of dust collection is not high.

2, water consumption is big, and the flue gas water content of discharge is more, and pipeline and air-introduced machine are had corrosiveness, so can reduce the service life of pipeline and air-introduced machine.

3, existing water dust scrubber is bulky, and selection is restricted, and cost is higher, and this brings financial burden can for the boiler user, and promoting the use of of environmental protection equipment caused certain difficulty.

The purpose of this utility model is to provide a kind of boiler multitube whiz formula water dust scrubber, and it utilizes centrifugal principle, dwindles the dust removing tube radius greatly, and adds spiral guide sheet in dust removing tube, improves efficiency of dust collection; The flue gas water content is low, can effectively reduce the corrosive pipeline degree, prolongs the service life of deduster; Volume is little, and cost can reduce significantly, alleviates user's financial burden.

The technical solution of the utility model is achieved in that boiler multitube whiz formula water dust scrubber comprises housing, advances mouth, outlet flue, dust removing tube.Advance mouth and be communicated with the boiler exhaust gas mouth, dust removing tube places in the housing, advances mouth and places the dust removing tube top.Dust removing tube evenly distributes and is fixed between the upper spacer and lower clapboard of diversion box, and vertical installation.Dust removing tube changes a plurality of minor diameters into by major diameter.The entering-dust mouth of dust removing tube is towards advancing mouth, and the dust mouth of dust removing tube is towards ash settling basin.Dust removing tube is built-in with a guide shaft, is connected with spiral guide sheet on the guide shaft, and flue dust produces centrifugal force under the effect of spiral guide sheet and rotate, and dust granule is thrown toward tube wall and combines with moisture film and enter ash settling basin.Be on the tube wall of the dust removing tube between upper spacer and the lower clapboard and evenly be processed with through hole, upper hose is communicated with diversion box, and water enters diversion box after the through hole of dust removing tube enters in the dust removing tube, forms moisture film at inside pipe wall.The entering-dust mouth of dust removing tube or be in the tangent position of dust removing tube, entering-dust mouth is with to advance mouth corresponding.

Also be provided with pipe in dust removing tube, this is the technical scheme in one of them of same inventive concept, and certain interval of passing through flue dust is arranged between its pipe and the dust removing tube inwall.Flue dust passes through from the entering-dust mouth of dust removing tube, and the soot dust granule that combines with moisture film enters ash settling basin, and the flue gas of filtration is discharged from pipe.Pipe is suitable for reading towards outlet flue, and the end opening of pipe is towards ash settling basin.At this moment pipe replaces guide shaft, and spiral guide sheet is fixed on the pipe.

Corresponding position at every row's dust removing tube dust mouth or entering-dust mouth is provided with sparge pipe, this is one of them a technical scheme of same inventive concept, be not provided with through hole on the dust removing tube of this technical scheme, moisture film on its tube wall is formed by the water that sparge pipe sprays, sparge pipe up a side of dust mouth or entering-dust mouth be processed with hole for water spraying, corresponding at hole for water spraying with dust mouth or entering-dust mouth.Sparge pipe communicates with upper hose.

In addition, the endoporus of dust removing tube is shaped as hollow cylinder or is carried out the transition to the hollow cylinder of bottom by the hollow cylinder on top.

The utility model is principle (any object that rotates of root a tree name centrifugal force, the capital is subjected to action of centrifugal force, centrifugal force and radius of turn are inversely proportional to, be directly proportional with the quality of rotating object), change the deduster of original big caliber into constitute deduster by a plurality of minor diameter dust removing tubes, and in each dust removing tube, add spiral guide sheet, make flue dust under the guiding of spiral guide sheet, produce powerful rotation, soot dust granule gets rid of to the dust removing tube inwall under action of centrifugal force and combines with moisture film, to reach the purpose of dedusting.Because the radius of dust removing tube is significantly smaller than prior art dust removing tube radius, centrifugal force has raising significantly under same speed, soot dust granule can fully be mixed with water in effective radius, and the increase of the quality of mixed dust granule, under the situation of same radius, centrifugal force also improves thereupon, and its flue dust is separated from flue gas, and dust removing effects is higher than similar dust-removing device for boiler.

Moreover, total volume of the present utility model is significantly smaller than existing deduster, and selection is easy; can select for use glass, pottery, metal, plastic or other material to manufacture; its low cost of manufacture, the financial burden that can alleviate applying unit is greatly more successfully carried out environmental protection work.

Moreover, the utility model adopts the low water consumption mode, because the diameter of every dust removing tube is less, the centrifugal force of soot dust granule is bigger, need not improve water consumption, and soot dust granule is fully combined with water, like this, water content just seldom can effectively reduce the extent of corrosion of flue gas to pipeline and air-introduced machine in the flue gas after the separation, has also saved water simultaneously.

Fig. 1 is the utility model embodiment 1 main schematic diagram of looking.

Fig. 2 is the utility model embodiment 1 schematic top plan view.

Fig. 3 is the utility model embodiment 2 main schematic diagrames of looking.

Fig. 4 is the utility model embodiment 2 schematic top plan view.

Fig. 5 is the utility model embodiment 3 main schematic diagrames of looking.

Fig. 6 is the utility model embodiment 4 main schematic diagrames of looking.

Fig. 7 is the utility model embodiment 5 main schematic diagrames of looking.

Fig. 8 is the utility model embodiment 5 dust removing tube partial structurtes schematic diagrames.

Fig. 9 is embodiment 1 schematic diagram of the utility model dust removing tube and spiral guide sheet.

Figure 10 is embodiment 2 schematic diagrames of dust removing tube of the present utility model and spiral guide sheet.

Figure 11 is embodiment 3 schematic diagrames of the utility model dust removing tube and spiral guide sheet.

Among the figure, 1. advance mouth 2. housings 3. dust removing tubes 4. upper spacers 5. diversion boxs 6. lower clapboards 7. ash settling basins 8. outlet flues 9. ash-valves 10. ash discharging holes 11. upper hoses 12. valves 13. sparge pipes 14. guide shafts 15. spiral guide sheets 16. through holes 17. entering-dust mouths.

With reference to Fig. 1, Fig. 2.This is the utility model embodiment 1, the mouth (1) that advances on the top of its housing (2) is communicated with the exhaust opening of boiler, flue dust enters in the many evenly distributed dust removing tubes (3) through advancing mouth (1), dust removing tube is fixed in the diversion box (5) between upper spacer (4) and the lower clapboard (6), the equally distributed through hole that is communicated with diversion box is arranged on the every dust removing tube, and making has moisture film to adhere to all the time on the dust removing tube inwall.Its outlet flue (8) is between dust outlet tube and the ash settling basin (7).Outlet flue is communicated with the air-introduced machine pipeline, can make the flue gas after the separation enter atmosphere like this.

Upper hose (11) opens and closes control by valve (12) and is communicated with diversion box (5).Ash-valve (9) is arranged at the ash settling basin bottom, and the dust of deposition is discharged from ash discharging hole (10).

With reference to Fig. 3, Fig. 4.Present embodiment 2 is that with the difference of embodiment 1 upper hose (11) opens and closes control by valve (12) and is diverted to each sparge pipe (13), sparge pipe (13) places the top of dust removing tube, have through hole in corresponding position with the dust removing tube entering-dust mouth, can directly spray the flue dust that enters dust removing tube, the opportunity that combines of fortified water and soot dust granule forms moisture film simultaneously on the tube wall of dust removing tube, flue dust is under action of centrifugal force, combine with moisture film once more, can effectively improve efficiency of dust collection.Except, the structure of advancing mouth (1), outlet flue (8), ash settling basin (7), ash-valve (9), ash discharging hole (10) is constant.

With reference to Fig. 5.The structure of present embodiment 3 is substantially the same manner as Example 2, and its sparge pipe (13) places the below of dust removing tube (3).Its mouth spray is corresponding with the dust mouth of dust removing tube.Enter the top that mouth (1) still is in housing (2), the outlet flue position is identical with embodiment 1, embodiment 2.

Contrast Fig. 6, Fig. 8.Present embodiment 4 advance the side that mouth (1) is in housing (2), and corresponding with the entering-dust mouth of dust removing tube (3).The entering-dust mouth of dust removing tube (17) is in the tangent position of dust removing tube.Flue dust enters in the dust removing tube (3) along the tangential direction that entering-dust mouth imports through advancing mouth, and flue dust centrifugal force is strengthened, the separating rate that improves soot dust granule with separate total amount.Still be diversion box between upper spacer of present embodiment 4 (4) and the lower clapboard (6), the invariant position of outlet flue (8).

With reference to Fig. 7.Present embodiment 5 is that embodiment 4 is basic identical, and it is corresponding with the entering-dust mouth (12) of dust removing tube to advance mouth (1), and entering-dust mouth still is in the tangent position of dust removing tube bore.Difference is also to be provided with pipe (18) in the dust removing tube (3), between the external diameter of pipe and the dust removing tube internal diameter certain intervals is arranged, and constitutes smoke dust duct.Flue dust is after tangentially whiz enters dust removing tube, and the soot dust granule that combines with moisture film enters ash settling basin, and the flue gas that enters ash settling basin has an opportunity to combine or give lighter soot dust granule once to fall into the chance of ash settling basin with water once more.Flue gas enters atmosphere through pipe (18) from outlet flue (8).The outlet flue of present embodiment 5 (8) is changed into the top of housing (2).Constant by the diversion box structure that upper spacer (4), lower clapboard (6) are formed.Place on the tube wall of the dust removing tube in the diversion box and be processed with through hole, be beneficial to the dust removing tube inwall and form moisture film.

With reference to Fig. 9.Placing the spiral guide sheet on the guide shaft (14) in the dust removing tube (3) is discontinuous, through hole on the dust removing tube (16) is that the water via through holes (16) in the diversion box is formed moisture film on tube wall, soot dust granule is under the guiding of spiral guide sheet, not only can improve whiz speed, also soot dust granule can be led the probability that increase combines with water in its downward process.

With reference to Figure 10.The difference of the utility model embodiment and Fig. 9 is: the one, and the endoporus of dust removing tube is descending, and top is cone, and the bottom is a cylinder, and spiral guide sheet is designed to uninterrupted shape.Flue dust combines with water in larger-diameter whiz process, import in the narrow tube by spiral guide sheet again, its diameter dwindle increasing with quality, the centrifugal force of soot dust granule also increases thereupon, can improve the separating effect of soot dust granule effectively.To reach the dedusting purpose.

With reference to Figure 11.The something in common of present embodiment and Figure 10 is the internal structure of dust removing tube.The difference part is that placing the spiral guide sheet of dust removing tube bottom is that the multi-head spiral guide card is got one section at axial direction, as the fan blade of air blast.Its function is identical with embodiment shown in Figure 10 with effect.

Claims

1, a kind of boiler multitube road whiz formula water dust scrubber, comprise housing (2), advance mouth (1), outlet flue (8), dust removing tube (3), advancing mouth is communicated with the boiler exhaust gas mouth, dust removing tube places in the housing, advance mouth (1) and place cleaning shaft (3) top, it is characterized in that: dust removing tube evenly distributes and is fixed between the upper spacer (4) and lower clapboard (6) of diversion box (5), the entering-dust mouth of dust removing tube towards the dust mouth of advancing mouth (1), cleaning shaft towards ash settling basin (7); Cleaning shaft is built-in with a guide shaft, is connected with spiral guide sheet (15) on the guide shaft (14); Be in and evenly be processed with through hole (16) on the dedusting tube wall between upper spacer and the lower clapboard, upper hose (11) is communicated with diversion box (5).

2, the described boiler multitube of root a tree name claim 1 whiz formula water dust scrubber is characterized in that: the entering-dust mouth of cleaning shaft (17) or be in the tangent position of dust removing tube, entering-dust mouth (17) is with to advance mouth (1) corresponding.

3, the described boiler multitube of root a tree name claim 1 whiz formula water dust scrubber, it is characterized in that: also be provided with pipe (18) in the cleaning shaft (3), between pipe and the dust removing tube inwall certain intervals is arranged, pipe is suitable for reading towards outlet flue, and the end opening of pipe is towards ash settling basin (7).

4, the described boiler multitube of root a tree name claim 1 whiz formula water dust scrubber, it is characterized in that: the top of dust removing tube endoporus is hollow cone, the bottom is a hollow cylinder.

5, the described boiler multitube of root a tree name claim 1 whiz formula water dust scrubber, it is characterized in that: also be provided with sparge pipe (13) in the corresponding position of every row's dust removing tube dust mouth or entering-dust mouth, sparge pipe towards the dust mouth or a side of entering-dust mouth be processed with hole for water spraying, sparge pipe (13) communicates with upper hose.