CN206424768U - Smoke-eliminating dust-controlling desulfurizing apparatus - Google Patents
Smoke-eliminating dust-controlling desulfurizing apparatus Download PDFInfo
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- CN206424768U CN206424768U CN201621057719.XU CN201621057719U CN206424768U CN 206424768 U CN206424768 U CN 206424768U CN 201621057719 U CN201621057719 U CN 201621057719U CN 206424768 U CN206424768 U CN 206424768U
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- dust
- water
- smoke
- flue
- spray header
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Abstract
The utility model discloses a kind of smoke-eliminating dust-controlling desulfurizing apparatus or design method, including the flue in hollow pipeline structure, conveyed including the laterally uniform spray header in flue hollow pipeline structure and to spray header and offer downward fluid hole on the liquid feed device of the water in dust removal with alkaline matter, the tube wall of spray header.Implement the technical solution of the utility model, smoke-eliminating dust-controlling desulfurizing apparatus low cost, dust removing effects are of a relatively high (effect for reaching centrifugal water film dust-remover), the process of dedusting easily realizes desulfurization (effect for exceeding centrifugal water film dust-remover), by increasing flue gas and water in dust removal contact area, reach desulfurized effect preferably, the characteristics of fume emission resistance is small.
Description
Technical field
The present invention relates to desulphurization plant field, more particularly, to a kind of smoke-eliminating dust-controlling desulfurizing apparatus.
Background technology
In recent years, the haze in our living environments and acid rain were on the rise with the progress of society.Boiler
Soot emissions are the one of the main reasons for causing our hazes and acid rain.Prevented and treated therefore, we also take some measures.
For dedusting, technique and the method for current comparative maturity are：
The conventional cleaner of medium and small boiler has gravity sedimentation type deduster, impingement dust collector, cyclone dust collectors, centrifugation
Formula water dust scrubber etc..These four dedusters are all the principles by gravity and centrifugal force to realize its function.
Gravity sedimentation type deduster is to lean on the weight of particle in flue dust to realize dedusting, is particularly due to the flue dust of bulky grain
Weight is big, the bottom of deduster can be deposited in flow process, short grained flue dust can then flow out deduster and be discharged into air.Its
Feature is simple in construction, and efficiency of dust collection is relatively low.
Impingement dust collector is also to lean on the weight of particle in flue dust to realize dedusting.It is particularly due to the flue dust weight of bulky grain
Amount is big, strikes obstacles (specially the designing) in flow process, and flue dust can change flow direction, at this moment, due to the big flue dust weight of particle
Amount is big, and malleable is not flowed to, and the bottom of deduster can be deposited under gravity, short grained flue dust can then flow out dedusting
Device is discharged into air.It is characterized in simple in construction, low cost, efficiency of dust collection is relatively low.
Cyclone dust collectors are equally to lean on the quality of particle in flue dust is of different sizes to realize dedusting.Specifically flue dust is along cigarette
The track flowing that road rotation rises, because the flue dust quality of bulky grain is big, malleable is not flowed in flow process, at this moment,
The bottom of deduster can be deposited in the presence of gravity, short grained flue dust can then flow out deduster and be discharged into air.It is characterized in
Simple in construction, two kinds of efficiency of dust collections are higher relatively above for efficiency of dust collection, but overall efficiency of dust collection is relatively low.As shown in figure 4, dotted line to
Upward arrow is that flue dust rotates the track risen along flue, and solid line down arrow is the direction that water in dust removal flows down along flue inner wall.
Three of the above is generally dry dust removal, although efficiency of dust collection is not high, but they have certain efficiency of dust collection.Due to
It is dry dust removal, they are difficult to realize carries out desulfurization during dedusting.
Its general principle of centrifugal water film dust-remover and cyclone dust collectors are basically identical, simply flue gas rotational flow when
Wait, water in dust removal can be sprayed along flow of flue gas opposite direction from top to bottom, to increase the quality of flue gas particle, even little particle can also increase
Plus its quality, improve dust removing effects.Therefore, it is characterized in that structure is relative complex, cost is of a relatively high, efficiency of dust collection is relatively
Height, is currently one of the most frequently used cleaner of commercial industry boiler.Meanwhile, by adding desulfurizing agent, Ke Yishi in water in dust removal
Existing a certain degree of desulfurization.It has the disadvantage that due to flue dust rotational flow its flow resistance is big, causes air inducing resistance big, increase is drawn
Blower fan resistance, and then increase power of fan, increase power consumption.Further, since flue gas and dedusting water engaging surface are limited, Jin Jin
Deduster inner wall section is contacted, and therefore, desulfurized effect is limited.
It is bag-type dusting separately to have a kind of dry dust removal, and its operation principle is filtering, as domestic dedusting device, for filtering
Bag, is generally used for miniature boiler and the high place of dust removing effects requirement, but be equally unable to desulfurization.
It is electrostatic precipitation to be widely used in large-sized boiler and the high deduster of dust removing effects requirement, but its cost is high, inconvenience
In popularization, equally it also is difficult to realize the desulfurization in dust removal process.
The content of the invention
The technical problem to be solved in the present invention is, can be to flue dust there is provided one kind for drawbacks described above of the prior art
Effectively carry out the smoke-eliminating dust-controlling desulfurizing apparatus of desulfurization.
The core of the invention is：By relation between boiler exhaust gas amount and flue cross-sectional area, pass through flue cross-sectional area
Flue gas flow rate (the small flue gas flow rate of cross-sectional area is fast, the big flue gas flow rate of cross-sectional area is slow) is controlled, to ensure that flue gas fills with water in dust removal
Tap is touched, and to realize desulfurization and dedusting, (flue gas flow rate is fast, and desulfurization and dedusting effect is poor；Flue gas flow rate is slow, and desulfurization and dedusting effect is good), together
When also assures boiler safety, stable operation, and (flue gas flow rate is slow, flue gas easily band water, influences boiler fan safe operation；Flue gas flow rate
It hurry up, flue gas resistance is big, increase boiler fan operating cost).
Therefore, the invention proposes rational flue gas stream by controlling relation between boiler exhaust gas amount and flue cross-sectional area
Speed, is equipped with suitable dedusting spray system, to realize that a kind of different economic, efficient desulfurization and dedusting with other dedusting methods is filled
Put.
The technical solution adopted for the present invention to solve the technical problems includes：A kind of smoke-eliminating dust-controlling desulfurizing apparatus is constructed, is wrapped
Include the flue in hollow pipeline structure, including laterally uniform spray header in flue hollow pipeline structure and to spray
Downward fluid hole is offered on the liquid feed device of water in dust removal of the spray pipe conveying with alkaline matter, the tube wall of spray header.
Preferably, by the pressure of supply water (offer of dedusting water pump) of liquid feed device, it is in water droplet by fluid hole to make water in dust removal
Or current shape falls.
Preferably, a diameter of 1-4mm of water droplet or current.
Preferably, by the pressure of supply water of liquid feed device, it is 0.1-0.2Mpa to make pressure of the water in dust removal at fluid hole.
Preferably, spray header includes radial some spray headers of distribution, if liquid feed device is connected at radial middle part
Dry spray header.
Preferably, liquid feed device includes being used to store the reservoir and water pump of water in dust removal, with by water pump by reservoir
In water in dust removal be transported in spray header.
Preferably, spray header is included at least two layers spray header on vertical.
Preferably, spray header between layers staggers.
The present invention's is mainly characterized in that：Low cost, dust removing effects are of a relatively high (to reach the effect of centrifugal water film dust-remover
Really), the process of dedusting easily realizes desulfurization, by increasing flue gas and water in dust removal contact area, reaches desulfurized effect preferably, flue gas row
Put the characteristics of resistance is small.
The main operational principle of the present invention：
Dedusting：The main operational principle of dedusting of the present invention is similar to gravity sedimentation type deduster, is specially in flow of flue gas
Flue total cross-section on spraying and dedusting water, the particle even little particle in flue dust is increased weight during spray, to reach more
Good gravitational settling effect, improves efficiency of dust collection.Here illustrate, the present invention compared with centrifugal water film dust-remover, except
Essence is different (in the flowing of water in dust removal) in the operation principle of dirt water：The water in dust removal of centrifugal water film dust-remover is along deduster
Inwall flows, and water in dust removal of the invention is spraying and dedusting water on total cross-section, therefore, and contact of the flue gas with water in dust removal is just more complete
Face, little particle gaining effect during spray is more preferable.Simultaneously as flow of flue gas speed is with respect to centrifugal water film dust-remover
Flow velocity is smaller, and resistance is smaller, and the energy resource consumption of blower fan can be smaller.Therefore, former medium and small boiler deduster relatively, can reach
Even more than centrifugal water film dust-remover effect, while resistance is small, the energy resource consumption of blower fan is low.
Desulfurization：The main operational principle of inventive desulfurization is that on the direction of flow of flue gas, general flue gas from bottom to top, is removed
Dirt water sprays from top to down, and water in dust removal is band alkalescence (such as adding sodium hydroxide alkaline matter).So, in flow process, remove
Dirt water neutral and alkali material can react with flue gas middle acid substance, realize desulfidation.Centrifugal water film dust-remover can also realize this
Function, but it is same as described above：The water in dust removal of centrifugal water film dust-remover is flowed along deduster inwall, and of the invention removes
Dirt water is spraying and dedusting water on total cross-section, therefore, contact of the flue gas with water in dust removal just more fully, water in dust removal neutral and alkali material meeting
React more complete with flue gas middle acid substance.
The core technology of the present invention is as follows：
During the core technology of the present invention is intended to flow of flue gas, general flue gas from bottom to top, the alkaline water in dust removal of band
Spray from top to down, so, in flow process, on the one hand, water in dust removal can make weight gain in flue dust, make particles sink, realize
Dedusting；On the other hand, water in dust removal neutral and alkali material can react with flue gas middle acid substance, realize desulfidation.
The key of technology is the size of the flow control and dedusting Water spray formation water droplet or current of flue gas.
The flow velocity of flue gas is excessive, and particle in flue gas can be taken out of boiler chimney by air-flow by effect of inertia, be arranged to air.Stream
Speed is too small to influence boiler smoke to discharge.Core technology of the present invention controls flue gas flow rate to be 0.5-2m/s.
Dedusting Water spray formation water droplet, current diameter are excessive, the contact area of influence water in dust removal and air-flow；Dedusting Water spray
Form water droplet, current diameter too small, easily cause flue gas with water, cause air inducing resistance to increase.Core technology of the present invention controls water
Drop, the diameter 1-4mm of current, water in dust removal hydraulic pressure (at spray spout between 0.1-0.2Mpa).
In specific be designed, core technology can be embodied by smoke-eliminating dust-controlling desulfurizing apparatus planform form,
Specially：
The control of flue gas flow rate is that so, first, the Coal-fired capacity per hour of every boiler is defined, in this manner it is possible to
Exhaust gas volumn hourly is extrapolated, and then is scaled exhaust gas volumn each second.General flue is circular cross-section form, such flue
Diameter can just be calculated：
D=Q/ л * v
Wherein：D is flue diameter；Q is exhaust gas volumn each second (being tried to achieve by other known formulas)；л is pi 3.14；
V is the flue gas flow rate of setting.
So, the diameter of flue is determined that.Height is got in the range of physical dimension and manufacturing cost allow in principle
It is high better.
The spray header arranged for flue inside, specific arrangement form does not make specific requirement, in physical dimension and manufacture
It is more uniform better that cost is arranged in the range of allowing.The number of plies of arrangement and every layer of arrangement density determines by flue gas flow rate, layer
Number is more and every layer, and arrangement density is bigger, and flue gas flow rate is smaller；Conversely, bigger.
For measurement flue gas flow rate, we set air gauge in the import and export of flue, because flue geometry is constant, exhaust gas volumn
It is constant, differential pressure and flue gas flow rate are imported and exported by surveying, to control flue gas flow rate.Further realize the control arranged to spray header
System.
Implement technical scheme, at least with following beneficial effect：Smoke-eliminating dust-controlling desulfurizing apparatus low cost, is removed
Dirt effect is of a relatively high (effect for reaching centrifugal water film dust-remover), and the process of dedusting easily realizes desulfurization, by increasing flue gas
With water in dust removal contact area, desulfurized effect is reached preferably, the characteristics of fume emission resistance is small.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the structural representation of the smoke-eliminating dust-controlling desulfurizing apparatus in one embodiment of the present invention.
Fig. 2 is the structural representation of the smoke-eliminating dust-controlling desulfurizing apparatus in another preferred embodiment of the invention.
Fig. 3 is the facing upward of being arranged radially of spray header of the smoke-eliminating dust-controlling desulfurizing apparatus in one embodiment of the present invention
Depending on schematic diagram.
Fig. 4 is a kind of structural representation of existing deduster.
Wherein, 1. flue, 2. spray headers, 21. fluid holes, 3. liquid feed devices, 4. air gauges.
Embodiment
In order to which technical characteristic, purpose and effect to the present invention are more clearly understood from, now compare accompanying drawing and describe in detail
The embodiment of the present invention.In the description of the smoke-eliminating dust-controlling desulfurizing apparatus of the present invention, it is to be understood that " preceding ",
The term such as " rear ", " on ", " under ", " front ", " back side " is for only for ease of description technical scheme, rather than indicates
Signified device or element must have specific orientation, therefore be not considered as limiting the invention.
【Embodiment one】
As shown in figure 1, the smoke-eliminating dust-controlling desulfurizing apparatus in a preferred embodiment of the invention, including in hollow pipeline knot
The flue 1 of structure, in addition to laterally uniform spray header 2 in the hollow pipeline structure of flue 1 and defeated to spray header 2
Send and offer downward fluid hole 21 on the liquid feed device 3 of the water in dust removal with alkaline matter, the tube wall of spray header 2.
Preferably, water in dust removal is spraying and dedusting water on total cross-section, so, contact of the flue gas with water in dust removal just more fully,
Little particle gaining effect during spray is more preferable.Simultaneously as stream of the flow of flue gas speed with respect to centrifugal water film dust-remover
Speed is smaller, and resistance is smaller, and the energy resource consumption of blower fan can be smaller.Therefore, former medium and small boiler deduster relatively, can reach very
To centrifugal water film dust-remover effect is exceeded, while resistance is small, the energy resource consumption of blower fan is low.
Wherein, the alkaline matter in water in dust removal can be the alkaline matters such as sodium hydroxide.
From bottom to top, water in dust removal sprays general flue gas from top to down, and water in dust removal is that band alkalescence (such as adds sodium hydroxide alkalescence
Material).So, in flow process, water in dust removal neutral and alkali material can react with flue gas middle acid substance, realize desulfidation.
Relative to centrifugal water film dust-remover, contact of the water in dust removal with flue gas is more complete produced by smoke-eliminating dust-controlling desulfurizing apparatus of the invention
Face, water in dust removal neutral and alkali material can react more complete with flue gas middle acid substance.
The flue gas that the smoke-eliminating dust-controlling desulfurizing apparatus can connect to produce boiler when in use with boiler carries out smoke elimination and removed
Dirt desulfurization.Also, because the Coal-fired capacity per hour of every boiler is defined, in this manner it is possible to extrapolate flue gas hourly
Amount, and then it is scaled exhaust gas volumn each second.General flue 1 is circular cross-section form, and the diameter of such flue 1 can just be calculated：
D=Q/ л * v
Wherein：D is the diameter of flue 1；Q is exhaust gas volumn each second (being tried to achieve by other known formulas)；л is pi
3.14；V is the flue gas flow rate of setting.So, the diameter of flue 1 is determined that.
In summary, the smoke-eliminating dust-controlling desulfurizing apparatus low cost of the present embodiment, dust removing effects are of a relatively high (to be reached centrifugal
The effect of water dust scrubber), the process of dedusting easily realizes desulfurization, by increasing flue gas and water in dust removal contact area, reaches desulfurization
Effect is preferable, the characteristics of fume emission resistance is small.
【Embodiment two】
The smoke-eliminating dust-controlling desulfurizing apparatus of the present embodiment has done further improvement to the technical scheme of embodiment one, and it includes real
Apply all the elements of example one.
As shown in figure 1, the smoke-eliminating dust-controlling desulfurizing apparatus of the present embodiment includes the flue 1 in hollow pipeline structure, in addition to
Laterally uniform spray header 2 in the hollow pipeline structure of flue 1 and conveyed to spray header 2 with alkaline matter
Downward fluid hole 21 is offered on the liquid feed device 3 of water in dust removal, the tube wall of spray header 2.
Water in dust removal is spraying and dedusting water on total cross-section, so, and just more fully, little particle exists for contact of the flue gas with water in dust removal
Gaining effect is more preferable during spray.Simultaneously as flow of flue gas speed is smaller with respect to the flow velocity of centrifugal water film dust-remover, resistance
Power is smaller, and the energy resource consumption of blower fan can be smaller.Therefore, former medium and small boiler deduster relatively, can meet or exceed from
Core type water dust scrubber effect, while resistance is small, the energy resource consumption of blower fan is low.
Wherein, the alkaline matter in water in dust removal can be the alkaline matters such as sodium hydroxide.
The smoke-eliminating dust-controlling desulfurizing apparatus is by the pressure of supply water of liquid feed device 3, and it is in water droplet by fluid hole 21 to make water in dust removal
Or current shape falls, in case water in dust removal formation water smoke, is mixed to form flue gas with water with flue gas, causes air inducing resistance to increase.Through examination
Test is tried, and the diameter of water droplet or current is preferably 1-4mm, and by the pressure of supply water of liquid feed device 3, water in dust removal is being gone out liquid
Pressure at hole 21 is 0.1-0.2Mpa, can so reach the diameter of preferable smoke dispersal, dust removal and desulphurization effect, water droplet or current
It is neither excessive and not too small.
As Figure 1-3, it is preferable that spray header 2 includes radial some spray headers 2 of distribution, liquid feed device 3 is being put
Penetrate some spray headers 2 of connection in the middle part of shape.In addition, spray header 2 can also in groined type, spiral shape be distributed etc., only
Water in dust removal even drop down in flue 1 can be made as far as possible.
Liquid feed device 3 includes being used to store the reservoir and water pump of water in dust removal, with by water pump by removing in reservoir
Dirt water is transported in spray header 2.
As shown in Fig. 2 spray header 2 can be included at least two layers spray header 2 on vertical, it can so make dedusting
The water yield of water is bigger, and the contact area with flue gas is just bigger, and smoke dispersal, dust removal and desulphurization effect is more preferable；And spray between layers
Spray pipe 2 staggers, to avoid the water droplet or current of last layer from being blocked when falling by next layer of spray header 2 so that dedusting
Water can effectively with smoke contacts.Preferably, each layer spray header 2 is independently supplied water by water supply installation, namely each layer shower water
Pipe 2 is connected by independent house steward with water supply installation.
From bottom to top, water in dust removal sprays general flue gas from top to down, and water in dust removal is that band alkalescence (such as adds sodium hydroxide alkalescence
Material).So, in flow process, water in dust removal neutral and alkali material can react with flue gas middle acid substance, realize desulfidation.
Relative to centrifugal water film dust-remover, contact of the water in dust removal with flue gas is more complete produced by smoke-eliminating dust-controlling desulfurizing apparatus of the invention
Face, water in dust removal neutral and alkali material can react more complete with flue gas middle acid substance.
The flue gas that the smoke-eliminating dust-controlling desulfurizing apparatus can connect to produce boiler when in use with boiler carries out smoke elimination and removed
Dirt desulfurization.Also, because the Coal-fired capacity per hour of every boiler is defined, in this manner it is possible to extrapolate flue gas hourly
Amount, and then it is scaled exhaust gas volumn each second.General flue 1 is circular cross-section form, and the diameter of such flue 1 can just be calculated：
D=Q/ л * v
Wherein：D is the diameter of flue 1；Q is exhaust gas volumn each second (being tried to achieve by other known formulas)；л is pi
3.14；V is the flue gas flow rate of setting.So, the diameter of flue 1 is determined that.
Preferably, it is measurement flue gas flow rate, the smoke-eliminating dust-controlling desulfurizing apparatus includes the gas for being located at the flue import and export
Press table 4.Because flue geometry is constant, exhaust gas volumn is constant, imports and exports differential pressure and flue gas flow rate by the actual measurement of air gauge 4, comes
Control flue gas flow rate.Further realize the control arranged to spray header.
In summary, the smoke-eliminating dust-controlling desulfurizing apparatus low cost of the present embodiment, dust removing effects are of a relatively high (to be reached centrifugal
The effect of water dust scrubber), the process of dedusting easily realizes desulfurization, by increasing flue gas and water in dust removal contact area, reaches desulfurization
Effect is preferable, the characteristics of fume emission resistance is small；Further, spray header 2 is radial, groined type or spiral shape so that
Distribution of the spray header 2 in flue 1 is more uniform, also, spray header 2 is set at least two layers so that water in dust removal can more have
Effect more uniformly with smoke contacts, smoke dispersal, dust removal and desulphurization effect is more preferable.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various changes, combination and change.Within the spirit and principles of the invention, made
Any modification, equivalent substitution and improvements etc., should be included within scope of the presently claimed invention.
Claims (8)
1. a kind of smoke-eliminating dust-controlling desulfurizing apparatus, including in the flue (1) of hollow pipeline structure, it is characterised in that including laterally dividing
Spray header (2) of the cloth in the flue (1) hollow pipeline structure and carry basic species to the spray header (2) conveying
Downward fluid hole (21) is offered on the liquid feed device (3) of the water in dust removal of matter, the tube wall of the spray header (2).
2. smoke-eliminating dust-controlling desulfurizing apparatus according to claim 1, it is characterised in that pass through the confession of the liquid feed device (3)
Water pressure, makes the water in dust removal fall by the fluid hole (21) in water droplet or current shape.
3. smoke-eliminating dust-controlling desulfurizing apparatus according to claim 2, it is characterised in that a diameter of 1- of the water droplet or current
4mm。
4. smoke-eliminating dust-controlling desulfurizing apparatus according to claim 3, it is characterised in that pass through the confession of the liquid feed device (3)
Water pressure, it is 0.1-0.2Mpa to make pressure of the water in dust removal at the fluid hole (21) place.
5. smoke-eliminating dust-controlling desulfurizing apparatus according to claim 1, it is characterised in that the spray header (2) includes radiation
Shape is distributed some spray headers (2), and the liquid feed device (3) connects some spray headers (2) at radial middle part.
6. smoke-eliminating dust-controlling desulfurizing apparatus according to claim 1, it is characterised in that including being located at the flue (1) turnover
Air gauge (4) at mouthful.
7. the smoke-eliminating dust-controlling desulfurizing apparatus according to claim any one of 1-6, it is characterised in that the spray header (2)
It is included at least two layers spray header (2) on vertical.
8. smoke-eliminating dust-controlling desulfurizing apparatus according to claim 7, it is characterised in that the spray header between layers
(2) stagger.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057719.XU CN206424768U (en) | 2016-09-14 | 2016-09-14 | Smoke-eliminating dust-controlling desulfurizing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057719.XU CN206424768U (en) | 2016-09-14 | 2016-09-14 | Smoke-eliminating dust-controlling desulfurizing apparatus |
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| CN206424768U true CN206424768U (en) | 2017-08-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106237819A (en) * | 2016-09-14 | 2016-12-21 | 深圳市特种设备安全检验研究院 | Smoke-eliminating dust-controlling desulfurizing apparatus |
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2016
- 2016-09-14 CN CN201621057719.XU patent/CN206424768U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106237819A (en) * | 2016-09-14 | 2016-12-21 | 深圳市特种设备安全检验研究院 | Smoke-eliminating dust-controlling desulfurizing apparatus |
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