CN109078765A - A kind of cyclone separator - Google Patents
A kind of cyclone separator Download PDFInfo
- Publication number
- CN109078765A CN109078765A CN201811332436.5A CN201811332436A CN109078765A CN 109078765 A CN109078765 A CN 109078765A CN 201811332436 A CN201811332436 A CN 201811332436A CN 109078765 A CN109078765 A CN 109078765A
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- China
- Prior art keywords
- central tube
- cyclone separator
- cylinder
- cone section
- separator according
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
- B04C5/081—Shapes or dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
- B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
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- Physics & Mathematics (AREA)
- Geometry (AREA)
- Cyclones (AREA)
Abstract
The invention discloses a kind of cyclone separators, including shell, shell includes columned cylinder, the side wall of cylinder is equipped with entrance, the upper end of cylinder is equipped with top plate, and shell further includes the central tube to the outflow of supplied gas uplink, and central tube is located at ceiling center, central tube is tapered, and diameter is gradually reduced from top to bottom.The central tube of cyclone separator provided by the present invention is in coniform, and its diameter is gradually reduced from top to bottom, on the one hand can reduce the area of gas vent, reduces gas flux, and then guarantees to be mainly that the higher center of flow velocity is flowed by the gas that central tube flows out；On the other hand, the side wall of central tube is the conical surface, can increase the stroke of short-circuit flow, reduce the energy of short-circuit flow, reduce a possibility that it is flowed out by central tube.
Description
Technical field
The present invention relates to boiler technology field, in particular to a kind of cyclone separator.
Background technique
Cyclone separator is the important equipment in circulating fluidized bed boiler, effect be by between gas and solid particle from
The difference of mental and physical efforts separates solid particle with gas, and the solid particle after separation can rejoin burner hearth and participate in burning,
It improves the efficiency of combustion of fuel, reduce the discharge of pollutant.Therefore, the separative efficiency of cyclone separator is to influence recirculating fluidized bed
The important factor in order of boiler working efficiency and pollutant discharge amount.
In conclusion the separative efficiency for how improving cyclone separator is that those skilled in the art's technology urgently to be solved is asked
Topic.
Summary of the invention
The object of the present invention is to provide a kind of cyclone separator, the diameter of central tube is gradually reduced from top to bottom, can
The flow of short-circuit flow is reduced, and then improves the separative efficiency of cyclone separator.
To achieve the above object, the present invention provides a kind of cyclone separator, including shell, and the shell includes columned
Cylinder, the side wall of the cylinder are equipped with entrance, and the upper end of the cylinder is equipped with top plate, and the shell further includes in supplied gas
The central tube of row outflow, the central tube is located at the ceiling center, and the central tube is tapered, and diameter is from top to bottom gradually
It reduces.
Preferably, the periphery of the central tube, which is equipped with, subtracts whirlpool device to reduce vortex intensity.
Preferably, the whirlpool device that subtracts includes horizontally disposed support plate, and the front end of the support plate is along vertical side
To the block for being parallel to the central tube axis is equipped with, fire resistant infilling is equipped between the block and the side wall of the central tube.
Preferably, the downside of the support plate is also connected with the gusset being arranged along the vertical direction.
Preferably, the whirlpool device that subtracts is uniformly distributed along the periphery of the central tube in same level height, is subtracted with being formed
Whirlpool device group.
Preferably, the outer periphery of the central tube is axially arranged with the described of two groups or more and subtracts whirlpool device group.
Preferably, subtracting described in adjacent two has prepsetting gap between the device of whirlpool, subtracts the prepsetting gap between the device group of whirlpool described in adjacent two
It is interspersed.
Preferably, the fire resistant infilling is ceramic fire resistant filler.
Preferably, the cylinder lower end is connected with coniform upper cone section, and the diameter of the upper cone section gradually contracts from top to bottom
Small, the upper cone section lower end is connected with columned direct tube section, and the lower end of the direct tube section is connected with coniform lower cone section, under described
The diameter of cone section is gradually reduced from top to bottom, and the lower cone section lower end is the discharge gate solid particle is discharged.
Preferably, the taper of the lower cone section is greater than the taper of the upper cone section.
Cyclone separator provided by the present invention includes shell, and shell includes columned cylinder and coniform center
Cylinder, the side wall of cylinder are equipped with entrance, and the upper end of cylinder is equipped with top plate, and central tube is located at ceiling center and, center coaxial with cylinder
The diameter of cylinder is gradually reduced from top to bottom.
The entrance of cyclone separator is located at the side wall of cylinder, and central tube is located at the center of top plate.Under normal conditions, air-flow by
Entrance flows into cyclone separator, and along the wall flow of cyclone separator to housing bottom, gas divides after reaching bottom along whirlwind
Central formation center stream from device, the flow direction of center stream are finally flowed out from central tube straight up.And the inertia of solid particle
It is larger, it is separated across discharge gate with air-flow after the bottom of cyclone separator is flowed to air-flow.But part is entrained with solid
The gas of grain can directly be flowed out from central tube by entrance, this fraction is referred to as short-circuit flow, and short-circuit flow is to cause whirlwind point
A main cause from the decline of device efficiency.
In cyclone separator provided by the present invention, central tube is in coniform, and its diameter is gradually reduced from top to bottom, and one
Aspect can reduce the area of gas vent, reduce gas flux, and then guarantee by the gas that central tube flows out to be mainly flow velocity
Higher center stream；On the other hand, the side wall of central tube is the conical surface, can increase the stroke of short-circuit flow, reduce the energy of short-circuit flow
Amount, reduces a possibility that it is flowed out by central tube.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural schematic diagram of cyclone separator provided by the present invention；
Fig. 2 is the schematic diagram of Section A-A in Fig. 1；
Fig. 3 is the enlarged drawing of V in Fig. 1.
Wherein, appended drawing reference of the Fig. 1 into Fig. 3 are as follows:
Cylinder 1, central tube 2, top plate 3, subtract whirlpool device 4, upper cone section 5, direct tube section 6, lower cone section 7, support plate 41, block 42,
Fire resistant infilling 43, gusset 44.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make those skilled in the art more fully understand the present invention program, with reference to the accompanying drawing and it is embodied
The present invention is described in further detail for mode.
Fig. 1 to Fig. 3 is please referred to, Fig. 1 is the structural schematic diagram of cyclone separator provided by the present invention；Fig. 2 is A- in Fig. 1
The schematic diagram in the section A；Fig. 3 is the enlarged drawing of V in Fig. 1.
Cyclone separator provided by the present invention includes shell, and structure is as shown in Figure 1, shell includes columned cylinder
1 and coniform central tube 2, the diameter of central tube 2 be gradually reduced from top to bottom, the upper end of cylinder 1 is equipped with top plate 3, central tube 2
Positioned at top plate 3 center and with cylinder 1 be coaxially disposed.The side wall of cylinder 1 is equipped with entrance, enters the tangentially extending of opening's edge cylinder 1,
And the top of entrance is concordant with top plate 3.
The gas for being mixed with solid particle is entered in shell by entrance, along the wall flow of shell, and then generates eddy flow, shell
Lower part be equipped with conical section, the diameter of conical section is gradually reduced from top to bottom, and gas enters its tangential speed after conical section by cylinder 1
It spends increasing, and then keeps the centrifugal force of solid particle increasing.After gas flows to the lower part of conical section then along shell
The upward rotational flow in center of body, air-flow at this time are referred to as center stream.And solid particle is since inertia is larger, it can not be with center
Stream flows up, and is flown out under the influence of centrifugal force by the discharge gate of lower part of the housing, realizes that gas is separated with solid phase.Center
Stream flows up until flowing out from central tube 2.
The diameter of central tube 2 is gradually reduced from top to bottom, and to avoid the pressure drop of cyclone separator excessive, the lowermost is straight
Diameter can be greater than or equal to the diameter of discharge gate.
In the present embodiment, the diameter of center cylinder of cyclone separator 2 is gradually reduced from top to bottom, by reducing gas vent
Cross-sectional area reduces the quality for the solid particle that center stream is taken out of.Extend in addition, the length of its side wall is opposite, increases short circuit
The stroke of stream makes short-circuit flow that can not reach reduction short circuit by flowing out in central tube 2 due to energy is reduced when reaching gas vent
The purpose for flowing flow, further improves the separative efficiency of cyclone separator.
In addition, gas will form vortex around the flowing of 2 periphery of central tube, a large amount of solid particle is carried in vortex secretly, these are solid
Body particle can be taken to the periphery of central tube 2 by Secondary Flow, and be moved down along the lateral wall of central tube 2, and central tube 2 is finally reached
Entrance, and solid particle has certain radial velocity, thus it can be carried over from the entrance of central tube 2, which is to make
The main reason at short-circuit flow, will lead to the separative efficiency decline of cyclone separator.The periphery of central tube 2, which is equipped with, subtracts whirlpool device 4,
Subtracting whirlpool device 4 can be specially the baffle or block 42 being arranged along the vertical direction.Since the tangential velocity of vortex is larger, subtract 4 energy of whirlpool device
The tangential velocity of vortex is enough greatly reduced, and then makes it that can not flow into the entrance of central tube 2 because of energy decline.
Optionally, subtracting whirlpool device 4 includes support plate 41, block 42 and fire resistant infilling 43, as shown in Fig. 2, support plate 41 is along water
Square to setting, its rear end is fixedly connected with the lateral wall of central tube 2, front end is connected with block 42, and block 42 is plate-like and edge
Vertical direction setting, the two sides of block 42 are concordant with the two sides of support plate 41, and the lower end of block 42 and the front end of support plate 41 are welded
It connects, fire resistant infilling 43 is fixed between block 42 and the side wall of central tube 2.The two sides of fire resistant infilling 43 and the two sides of support plate 41
Concordantly, the angle between the upper surface of fire resistant infilling 43 and the side wall of central tube 2 is typically larger than 90 °.Angle is greater than 90 ° of one side energy
Enough impacts for reducing vortex to 43 upper surface of fire resistant infilling, slow down 43 rate of wear of fire resistant infilling, prolong its service life；It is another
Aspect can flow after air-flow and 43 upper end face contact of fire resistant infilling to the direction far from central tube 2, and then avoid in its inflow
The entrance of heart cylinder 2 causes short-circuit flow.
Fire resistant infilling 43 can be specially refractory brick, alumina setter filler or ceramic fire resistant filler etc., due to pressing from both sides in vortex
It is extremely serious to the abrasion of refractory material with a large amount of solid particle, therefore it is aluminium oxide or pottery that fire resistant infilling 43, which is selected excellent,
The high-strength fireproofs such as porcelain filler 43.
Vortex has tangential, radial direction and the straight down velocity component in three directions, wherein velocity component straight down
Shearing force can be generated in support plate 41, be easy to cause support plate 41 to be broken during prolonged use, and then cause to subtract whirlpool
Device 4 fails.Therefore the downside of support plate 41 is also connected with gusset 44, and gusset 44 is arranged along the vertical direction.Optionally, gusset 44 is in
Triangle, one side are fixedly connected with the side wall of central tube 2, and another side is fixedly connected with the lower end surface of support plate 41, muscle
The length of plate 44 is equal to the width of support plate 41, to bear the shearing force in the entire width direction of support plate 41.
The periphery of central tube 2 it is settable it is multiple subtract whirlpool device 4, formation subtracts whirlpool device group, persistently reduces vortex by subtracting whirlpool device group
Tangential velocity, to achieve the purpose that quickly to subtract whirlpool.It is respectively positioned on together specifically, the same whole subtracted in the device group of whirlpool subtracts whirlpool device 4
One level height, and be uniformly distributed along the periphery of central tube 2.One subtracts in the device group of whirlpool settable 20 and subtracts whirlpool device 4, and then continuous
Reduce the tangential velocity of vortex.Certainly, user can also increase or decrease one as needed and subtract the number for subtracting whirlpool device 4 in the device group of whirlpool
Amount.
It is vortexed the peripheral distribution in central tube 2, central tube 2 can also subtract whirlpool device along be axially arranged with two groups or more
Group.The setting of 2 periphery of central tube is multiple to subtract whirlpool device group, and the height of 2 periphery of central tube vortex can not determine, therefore to carry out to vortex
It eliminates, the axially disposed multiple groups in the periphery of central tube 2 subtract whirlpool device group, to achieve the purpose that weaken vortex to greatest extent.
In addition, vortex also has a velocity component straight down, it is same subtract in the device group of whirlpool adjacent two subtract between whirlpool device 4 have it is pre-
If gap, to avoid air-flow from flowing to along prepsetting gap the entrance of central tube 2, adjacent two prepsetting gaps subtracted between the device group of whirlpool interlock
Distribution.If air-flow passes through a prepsetting gap and flows downward, will necessarily be in contact with next layer of the whirlpool device 4 that subtracts, this subtracts whirlpool
Device 4 can be such that it flows to the direction far from 2 side wall of central tube, and then it is avoided to flow into the entrance of central tube 2.
In the present embodiment, the outer periphery of central tube 2 be axially arranged with it is multiple subtract whirlpool device group, each subtract in the device group of whirlpool have it is multiple
Subtract whirlpool device 4 positioned at sustained height.When air-flow is flowed around the periphery of central tube 2, subtracting whirlpool device 4 can reduce the tangential speed of air-flow
Degree and speed straight down, flow air-flow to the direction far from central tube 2.Reach elimination vortex, avoids being entrained with solid
The air-flow of particle flows into the purpose of 2 entrance of central tube, further increases the separative efficiency of cyclone separator.
In addition, solid particle is separated with air-flow after air-flow reaches circular cone pars infrasegmentalis, but solid particle has certain diameter
To speed, thus a part of particle is caused to be mixed into the stream of center, separative efficiency is caused to decline.
Optionally, conical section includes upper cone section 5 and lower cone section 7, and upper cone section 5 is connected with the lower end of cylinder 1 and diameter is by upper
It is gradually reduced downwards.Direct tube section 6 is equipped between upper cone section 5 and lower cone section 7, the lower end of upper cone section 5 is connected with the upper end of direct tube section 6,
The lower end of direct tube section 6 is connected with the upper end of lower cone section 7, and the diameter of lower cone section 7 is gradually reduced from top to bottom, and discharge gate is located at lower cone
The lower end of section 7.
Air-flow continues to flow along direct tube section 6 after upper cone section 5, thus increase the velocity component of air-flow straight down,
Separated by 7 gas of lower cone section with solid particle after flowing through direct tube section 6, at this time the velocity component of solid particle straight down compared with
Greatly, it can quickly be separated with gas, and then avoid the generation of air-teturning mixed phenomenon.
Optionally, the taper of lower cone section 7 is greater than the taper of upper cone section 5, and then allows the flow to faster flow through lower cone section 7,
Particle is reduced in the residence time of lower cone section 7, accelerates the separating rate of solid particle and air-flow.
In the present embodiment, conical section includes upper cone section 5 and lower cone section 7, is additionally provided with direct tube section 6,6 energy of direct tube section therebetween
Enough increase the velocity component of air-flow straight down, and then solid particle is enable quickly to separate with air-flow, avoids air-teturning mixed phenomenon
Occur, further increases the separative efficiency of cyclone separator.
It should be noted that in the present specification, such as first and second etc relational terms are used merely to one
Entity is distinguished with other several entities, and without necessarily requiring or implying between these entities, there are any this actual
Relationship or sequence.
Cyclone separator provided by the present invention is described in detail above.Specific case used herein is to this
The principle and embodiment of invention is expounded, method of the invention that the above embodiments are only used to help understand and
Its core concept.It should be pointed out that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection of the claims in the present invention
In range.
Claims (10)
1. a kind of cyclone separator, including shell, the shell includes columned cylinder (1), and the side wall of the cylinder (1) is set
There is entrance, which is characterized in that the upper end of the cylinder (1) is equipped with top plate (3), and the shell further includes to supplied gas upstream
Central tube (2) out, the central tube (2) are located at the top plate (3) center, and the central tube (2) is tapered, and diameter is by upper
It is gradually reduced downwards.
2. cyclone separator according to claim 1, which is characterized in that the periphery of the central tube (2) is equipped with to drop
Low vortex intensity subtracts whirlpool device (4).
3. cyclone separator according to claim 2, which is characterized in that described subtract whirlpool device (4) include setting in the horizontal direction
The front end of the support plate (41) set, the support plate (41) is equipped with the gear for being parallel to the central tube (2) axis along the vertical direction
Block (42) is equipped with fire resistant infilling (43) between the block (42) and the side wall of the central tube (2).
4. cyclone separator according to claim 3, which is characterized in that the downside of the support plate (41) is also connected with edge
The gusset (44) of vertical direction setting.
5. cyclone separator according to claim 4, which is characterized in that the whirlpool device (4) that subtracts is in same level height
It is uniformly distributed along the periphery of the central tube (2), subtracts whirlpool device group to be formed.
6. cyclone separator according to claim 5, which is characterized in that the outer periphery of the central tube (2) is axially arranged with
The described of two groups or more subtracts whirlpool device group.
7. cyclone separator according to claim 6, which is characterized in that subtract between whirlpool device (4) described in adjacent two have it is default
Gap, the prepsetting gap subtracted between the device group of whirlpool described in adjacent two are interspersed.
8. cyclone separator according to claim 7, which is characterized in that the fire resistant infilling (43) is filled out for ceramic fire resistant
Material.
9. according to claim 1 to cyclone separator described in 8 any one, which is characterized in that cylinder (1) lower end is connected with
The diameter of coniform upper cone section (5), the upper cone section (5) is gradually reduced from top to bottom, and upper cone section (5) lower end is connected with circle
The lower end of columnar direct tube section (6), the direct tube section (6) is connected with coniform lower cone section (7), the diameter of the lower cone section (7)
It is gradually reduced from top to bottom, lower cone section (7) lower end is the discharge gate solid particle is discharged.
10. cyclone separator according to claim 9, which is characterized in that the taper of the lower cone section (7) is greater than on described
Bore the taper of section (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811332436.5A CN109078765A (en) | 2018-11-09 | 2018-11-09 | A kind of cyclone separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811332436.5A CN109078765A (en) | 2018-11-09 | 2018-11-09 | A kind of cyclone separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109078765A true CN109078765A (en) | 2018-12-25 |
Family
ID=64844753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811332436.5A Pending CN109078765A (en) | 2018-11-09 | 2018-11-09 | A kind of cyclone separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109078765A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923355A (en) * | 2021-02-04 | 2021-06-08 | 东南大学 | Cyclone separator without central cylinder and separation method |
| CN112958296A (en) * | 2021-02-05 | 2021-06-15 | 张鹏飞 | Dry method for producing powder purifying processor by fracturing propping agent quartz sand |
| CN112973935A (en) * | 2021-02-05 | 2021-06-18 | 张鹏飞 | Dry production process of quartz sandstone lump ore as fracturing propping agent |
| CN113226558A (en) * | 2018-12-21 | 2021-08-06 | 乌尔可公司 | Hydraulic cyclone |
-
2018
- 2018-11-09 CN CN201811332436.5A patent/CN109078765A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113226558A (en) * | 2018-12-21 | 2021-08-06 | 乌尔可公司 | Hydraulic cyclone |
| CN112923355A (en) * | 2021-02-04 | 2021-06-08 | 东南大学 | Cyclone separator without central cylinder and separation method |
| CN112958296A (en) * | 2021-02-05 | 2021-06-15 | 张鹏飞 | Dry method for producing powder purifying processor by fracturing propping agent quartz sand |
| CN112973935A (en) * | 2021-02-05 | 2021-06-18 | 张鹏飞 | Dry production process of quartz sandstone lump ore as fracturing propping agent |
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Address after: 266073 E402, 403, 67, 69 Yinchuan West Road, Shinan District, Qingdao City, Shandong Province Applicant after: Qingdao Tellier Environmental Protection Group Co., Ltd. Address before: Room 402 and 403, Block E, 67 and 69 Yinchuan West Road, Shinan District, Qingdao City, Shandong Province Applicant before: Qingdao Clear Environmental Protection Boiler Engineering Co., Ltd. |