CN213529163U - Axial flow cutting combined reverse-rotating cyclone separator with adjustable efficiency - Google Patents
Axial flow cutting combined reverse-rotating cyclone separator with adjustable efficiency Download PDFInfo
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- CN213529163U CN213529163U CN202021725025.5U CN202021725025U CN213529163U CN 213529163 U CN213529163 U CN 213529163U CN 202021725025 U CN202021725025 U CN 202021725025U CN 213529163 U CN213529163 U CN 213529163U
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Abstract
The utility model discloses an efficiency-adjustable tangential axial flow combined reversal cyclone separator, which comprises a tangential air inlet pipeline, a cylindrical barrel, a conical barrel, a fixed central barrel, a material collecting pipe, an exhaust pipe, a turbulent flow pipe, an axial air inlet device and a height adjusting device; wherein, axial air inlet unit includes air supply pipeline, annular gas uniform distributor and axial air inlet pipeline, and height adjusting device includes regulating spindle, regulation center section of thick bamboo, well thing and airtight transmission. The utility model has the advantages of reasonable design, can promote or reduce cyclone's efficiency according to the needs that technological condition changed.
Description
Technical Field
The utility model relates to a cyclone, in particular to be applied to the efficiency adjustable tangent axial flow combination reversal formula cyclone of thermal power generation, cement, chemical industry, metallurgical field.
Background
The cyclone separator is used as an important gas-solid separation device, utilizes centrifugal force to separate, has the characteristics of simple structure, no moving part, convenient operation, large treatment capacity and the like, and is widely applied to the fields of thermal power generation, cement, chemical industry, metallurgy and the like.
In the actual operation process of the existing cyclone separator, the requirement of changing the process conditions of the upstream and the downstream is often met, so that the separation efficiency of the cyclone separator is required to be adjusted, for example, the deep peak regulation of a circulating fluidized bed boiler or the co-combustion of a large proportion of fuels with different properties has the requirement of adjusting the efficiency of the cyclone separator. The chinese patent application with publication number CN110145736A discloses a cyclone separator, a circulating fluidized bed boiler and a method for adjusting the separation efficiency of the cyclone separator, which reduces the separation efficiency of the cyclone separator by adding a disturbance device on the cone part, improves the coal quality adaptability of the boiler, but the adjustment method of the technology can only reduce and cannot improve the separation efficiency of the cyclone separator; the chinese utility model patent of publication number CN203598956U provides a cyclone with adjustable, improves cyclone efficiency through improving hot blast blowpipe apparatus and adjusting a center section of thick bamboo depth of insertion, nevertheless along with the improvement of a center section of thick bamboo depth of insertion among the utility model adjustment mode, cyclone's loss of pressure has improvement by a relatively large margin. It is desirable to design a cyclone separator with improved or reduced efficiency depending on the process conditions.
A typical counter-rotating cyclone separator generally comprises an inlet, a cylinder, a cone, a central cylinder, an exhaust duct and a dust discharge opening, and in this form of cyclone separator, a slowly flowing longitudinal circulation is prevalent in the annular space formed between the central cylinder, the ceiling and the wall, and particles that have collected on the wall are re-entrained into the dynamic space of the longitudinal circulation, causing the particles to agglomerate, forming an "ash ring". In addition, near the lower end of the central cylinder, a part of the particles are directly discharged out of the separator without participating in the separation process due to the existence of the radial velocity of the fluid, and a 'short-circuit flow' is formed. Both "soot-top ring" and "short circuit flow" affect the efficiency of the cyclone. The distance from the tail end of the vortex to the lower end of the exhaust pipe is the length of the natural cyclone, the natural cyclone is an effective separation space of the cyclone separator, and the separation efficiency can be reduced by reducing the length of the natural cyclone by some measures. It can be seen that cyclone efficiency can be improved by reducing or eliminating the annulus and short circuit flow, and reduced by taking measures to reduce its natural cyclone length.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide an efficiency adjustable cut axial compressor combination reversal formula cyclone, can promote or reduce cyclone's efficiency according to the needs that technological condition changes.
The utility model provides a technical scheme that above-mentioned problem adopted is: a tangential axial flow combined reverse-rotating cyclone separator with adjustable efficiency is characterized by comprising a tangential air inlet pipeline, a cylindrical barrel, a conical barrel, a fixed central barrel, a material collecting pipe, an exhaust pipe, a turbulent flow pipe, an axial air inlet device and a height adjusting device; the height adjusting device comprises an adjusting shaft, an adjusting central cylinder, a middle object and a closed transmission device;
the tangential air inlet pipeline is tangentially connected to the side wall of the cylindrical barrel, the fixed central cylinder is connected with the top of the cylindrical barrel and inserted into the cylindrical barrel, the exhaust pipe is connected to the top of the cylindrical barrel, the conical barrel is connected to the lower end of the cylindrical barrel, and the material collecting pipe is connected to the bottom end of the conical barrel; the outlet of the gas supply pipeline is connected with the annular gas uniform distributor, and the two ends of the axial gas supply pipeline are respectively communicated with the annular gas uniform distributor and the cylindrical barrel; the closed transmission device is connected with the upper end of the adjusting shaft, the adjusting central cylinder is connected with the lower end of the adjusting shaft, and the middle storage object is connected with the lower end of the adjusting shaft; the turbulent flow pipe is connected to the upper end of the material collecting pipe; the exhaust pipe, the fixed center barrel, the annular gas uniform distributor, the adjusting shaft, the adjusting center barrel, the middle storage object, the cylindrical barrel, the conical barrel and the collecting pipe are coaxially arranged.
Furthermore, the axial gas inlet pipeline is in a twisted shape, and the rotating direction of the gas in the axial gas inlet pipeline is consistent with the rotating direction of the gas in the cylindrical barrel; the axial air inlet pipelines are uniformly arranged in the circumferential direction, and the number of the axial air inlet pipelines is 4-36; the annular gas uniform distributor and the cylindrical barrel are communicated through openings at the upper end and the lower end of an axial gas inlet pipeline, and the rotation angle alpha of the vertical projection of the openings at the upper end and the lower end of the axial gas inlet pipeline is 0-60 degrees, preferably 30-45 degrees; the cross section of the axial air inlet duct can be rectangular or circular or other shapes; the gas flow velocity in the axial gas inlet pipeline is 10-30 m/s, and preferably 18-25 m/s.
Further, the inner diameter of the annular gas uniform distributor is slightly larger than the outer diameter of the exhaust pipe, and the outer diameter of the annular gas uniform distributor is equal to that of the cylindrical barrel.
Further, the gas supply pipeline is evenly arranged in the circumferential direction, the number of the gas supply pipeline is 2-10, and gas in the gas supply pipeline tangentially or vertically enters the annular gas uniform distributor.
Furthermore, the adjusting shaft can move up and down through the closed transmission device, the upper limit of the up-and-down moving range of the adjusting shaft is that the lower end of the adjusting central cylinder is flush with the lower end of the fixed central cylinder, and the lower limit of the up-and-down moving range of the adjusting shaft is that the upper end of the adjusting central cylinder is flush with the lower end of the fixed central cylinder; the adjusting center cylinder is fixed at the lower end of the adjusting shaft, the diameter of the adjusting center cylinder is slightly smaller than that of the fixing center cylinder, a vertical oblique cutting gap is formed in the side wall of the adjusting center cylinder, the range of an oblique cutting angle beta of the vertical oblique cutting gap is 10-80 degrees, the vertical oblique cutting gaps are uniformly distributed in the circumferential direction, and the number of the vertical oblique cutting gaps is 0-36.
Furthermore, the middle objects are spindle-shaped, the number of the middle objects is n, n is more than or equal to 1, and the n middle objects are sequentially fixed on the adjusting shaft from bottom to top; the distance H between the lowest end of the middle storage object and the lower end of the adjusting center cylinder1Adjusting the diameter of the central cylinder to 0-1/2; vertical height H of the middle storage2The diameter of the central cylinder is adjusted to be 1-2 times; maximum diameter D of the central objectmax1/3-1/2 for adjusting the diameter of the central cylinder; distance H between two adjacent middle objects3Is Dmax0 to 1; the distance between the uppermost end of the middle storage object and the top of the exhaust pipe is H4Along with the up-and-down movement of the adjusting shaft, ensure H4≥0。
Further, the turbulence pipes are uniformly arranged in the circumferential direction, the number of the turbulence pipes is 1-4, gas in the turbulence pipes vertically enters the material collecting pipe, and the flow velocity of the gas in the turbulence pipes is 2-15 m/s.
Further, the air supply pipeline is provided with a valve for opening or closing the axial air inlet device; and a valve is arranged on the turbulent flow pipe and used for opening or closing the turbulent flow pipe.
Further, the gas medium in the gas supply pipeline and the turbulence pipe can be smoke or air or water vapor or nitrogen.
Compared with the prior art, the utility model, have following advantage and effect:
1. the utility model discloses can improve cyclone's separation efficiency through axial air inlet unit, when opening axial air inlet unit, cyclone uses the tangential to admit air to be given first place to, and the axial is admitted air for assisting, and through increasing the rotatory air admission of axial, typical cyclone's top ash ring can be eliminated to reinforcing whirlwind top fluidic centrifugal motion to improve cyclone's separation efficiency.
2. The utility model discloses can reduce or improve cyclone's separation efficiency through the ascending of adjusting a center section of thick bamboo or decline. Meanwhile, measures for reducing cyclone pressure loss are adopted: the wall surface of the adjusting central cylinder is provided with a gap with a tangent angle, so that the height of the adjusting central cylinder is increased, and the increase of pressure loss can be effectively slowed down while the effect is improved; the arrangement of the adjusting shaft is centered, so that the disturbance consumption of air flow in the exhaust pipe can be reduced, the turbulence loss is reduced, and the pressure loss is further reduced.
3. The natural cyclone length of the cyclone separator can be reduced through turbulent wind in the turbulent pipe, so that the separation efficiency of the cyclone separator is reduced.
4. The adjusting means are used in a matched mode, and the efficiency of the cyclone separator can be improved by adopting the measures of axially rotating air inlet and downwards moving the adjusting central cylinder; the efficiency of the cyclone separator can be reduced by taking measures of upwards moving and adjusting the central cylinder and increasing the turbulent wind of the material collecting pipe.
Drawings
Fig. 1 is a schematic structural diagram of a tangential axial flow combined cyclone separator with adjustable efficiency in embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of an axial air inlet device in embodiment 1 of the present invention.
Fig. 3 is a schematic view of the rotation angle of the openings at the upper and lower ends of the axial air inlet pipe in embodiment 1 of the present invention.
Fig. 4 is a schematic view of a vertical bevel gap on an adjusting center cylinder in embodiment 1 of the present invention.
Fig. 5 is a schematic structural view of an axial air intake device in embodiment 2 of the present invention.
Fig. 6 is a schematic view of the rotation angle of the openings at the upper and lower ends of the axial air inlet pipe in embodiment 2 of the present invention.
Fig. 7 is a schematic layout of the turbulent flow tube in embodiment 2 of the present invention.
In the figure: the device comprises a tangential air inlet pipeline 1, a cylindrical barrel 2, a conical barrel 3, a fixed central barrel 4, a material collecting pipe 5, an exhaust pipe 6, a turbulent flow pipe 7, an air supply pipeline 81, an annular gas uniform distributor 82, an axial air inlet pipeline 83, a joint shaft 91, an adjusting central barrel 92, a middle object 93, a closed transmission device 94 and a vertical oblique cutting gap 921.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Example 1.
Referring to fig. 1, in the present embodiment, an efficiency-adjustable tangential axial flow combined reverse cyclone separator includes a tangential air inlet pipeline 1, a cylindrical barrel 2, a conical barrel 3, a fixed central barrel 4, a material collecting pipe 5, an exhaust pipe 6, a turbulent pipe 7, an axial air inlet device, and a height adjusting device; the axial air inlet device comprises an air feeding pipeline 81, an annular gas uniform distributor 82 and an axial air inlet pipeline 83, and the height adjusting device comprises an adjusting shaft 91, an adjusting central cylinder 92, a middle object 93 and a closed transmission device 94.
The tangential air inlet pipeline 1 is tangentially connected to the side wall of the cylindrical barrel 2, the fixed central barrel 4 is connected with the top of the cylindrical barrel 2 and is inserted into the cylindrical barrel 2, the exhaust pipe 6 is connected to the top of the cylindrical barrel 2, the conical barrel 3 is connected to the lower end of the cylindrical barrel 2, and the material collecting pipe 5 is connected to the bottom end of the conical barrel 3; the outlet of the air supply pipeline 81 is connected with the annular gas uniform distributor 82, and the two ends of the axial air supply pipeline 83 are respectively communicated with the annular gas uniform distributor 82 and the cylindrical barrel 2; the closed transmission device 94 is connected with the upper end of the adjusting shaft 91, the adjusting central cylinder 92 is connected with the lower end of the adjusting shaft 91, and the middle object 93 is connected with the lower end of the adjusting shaft 91; the turbulent flow pipe 7 is connected to the upper end of the material collecting pipe 5; the exhaust pipe 6, the fixed central cylinder 4, the annular gas uniform distributor 82, the adjusting shaft 91, the adjusting central cylinder 92, the middle object 93, the cylindrical cylinder 2, the conical cylinder 3 and the collecting pipe 5 are coaxially arranged.
Referring to fig. 2, the axial gas inlet pipe 83 is in a twisted shape, and the rotation direction of the gas in the axial gas inlet pipe 83 is the same as the rotation direction of the gas in the cylindrical barrel 2; the axial air inlet pipelines 83 are uniformly arranged in the circumferential direction, and the number of the axial air inlet pipelines is 5; the annular gas uniform distributor 82 and the cylindrical barrel 2 are communicated through openings at the upper end and the lower end of the axial gas inlet pipeline 83, and the vertical projection of the openings at the upper end and the lower end of the axial gas inlet pipeline 83 is rotated by an angle of alpha =30 degrees, as shown in fig. 3; the cross section of the axial inlet duct 83 is rectangular; the gas flow velocity in the axial inlet duct 83 is 20 m/s.
Specifically, the inner diameter of the annular gas uniform distributor 82 is slightly larger than the outer diameter of the exhaust pipe 6, and the outer diameter of the annular gas uniform distributor 82 is equal to the outer diameter of the cylindrical barrel 2.
Specifically, the air supply pipes 81 are uniformly arranged in the circumferential direction, the number of the air supply pipes is 3, and the air in the air supply pipes 81 tangentially enters the annular air uniform distributor 82, as shown in fig. 3.
Specifically, the adjusting shaft 91 can move up and down through the closed transmission device 94, the upper limit of the up-down moving range is that the lower end of the adjusting center cylinder 92 is flush with the lower end of the fixed center cylinder 4, and the lower limit of the up-down moving range is that the upper end of the adjusting center cylinder 92 is flush with the lower end of the fixed center cylinder 4.
Specifically, the adjusting center cylinder 92 is fixed at the lower end of the adjusting shaft 91, the diameter of the adjusting center cylinder 92 is slightly smaller than that of the fixing center cylinder 4, and the side wall of the adjusting center cylinder 92 is provided with vertical oblique cutting slits 921, as shown in fig. 4, the oblique cutting angle β =30 ° of the vertical oblique cutting slits 921, and the vertical oblique cutting slits 921 are circumferentially and uniformly distributed, and the number of the vertical oblique cutting slits is 15.
Specifically, the central objects 93 are spindle-shaped, the number of the central objects is n, n =3, and 3 central objects 93 are sequentially fixed on the adjusting shaft 91 from bottom to top; the distance H between the lowest end of the middle object 93 and the lower end of the adjusting central cylinder 9211/3 for adjusting the diameter of the central cylinder 92; vertical height H of center stack 9321.2 times of the diameter of the central cylinder 92; maximum diameter D of center item 93max1/3 for adjusting the diameter of the central cylinder 92; distance H between two adjacent middle objects 933Is Dmax(ii) a The distance between the uppermost end of the middle object 93 and the top of the exhaust pipe 6 is H4Following adjustmentUp and down movement of shaft 91, ensuring H4≥0。
Specifically, vortex tube 7 is circumference and arranges, and quantity is 1, and the perpendicular entering of the gas in vortex tube 7 is the collecting pipe 5, and the gaseous velocity of flow is 8m/s in vortex tube 7.
Specifically, the air supply duct 81 is provided with a valve for opening or closing the axial air intake device; the turbulent flow pipe 7 is provided with a valve for opening or closing the turbulent flow pipe 7.
Specifically, the gas medium in the air supply pipe 81 is flue gas, and the gas medium in the spoiler pipe 7 is compressed air.
The circulating fluidized bed boiler of a certain power plant has deep peak regulation requirements, when the load stable operation is reduced from 100% to 40% and the load stable operation is carried out, the circulating multiplying power needs to be properly increased in order to maintain the bed pressure, so that the efficiency of the cyclone separator needs to be properly improved, and the adjusting means comprises:
1) the axial air inlet device is opened, the centrifugal motion of the fluid at the top of the cyclone is enhanced, and the ash jacking ring of the cyclone separator is weakened or eliminated;
2) the upper end of the adjusting center cylinder 92 is moved to be flush with the lower end of the fixed center cylinder 4 by the height adjusting means.
On the contrary, when the load steady operation is reduced from 40% to 100% and the efficiency of the cyclone separator needs to be reduced, the adjusting means comprises:
1) closing the axial air inlet device;
2) moving the lower end of the adjusting central cylinder 92 to be flush with the lower end of the fixed central cylinder 4 by means of a height adjusting device;
3) and opening the flow surrounding pipe 7, and introducing turbulent air into the material collecting pipe 5 to form blow-by gas.
Example 2.
The present embodiment differs from embodiment 1 in the axial air intake device. In this embodiment, the axial air inlet means comprises an air supply duct 81, an annular gas distributor 82 and an axial air inlet duct 83, as shown in fig. 5. The axial air inlet pipeline 83 is in a twisted shape, and the rotating direction of the air in the axial air inlet pipeline 83 is consistent with that of the air in the cylindrical barrel 2; the axial air inlet pipelines 83 are uniformly arranged in the circumferential direction, and the number of the axial air inlet pipelines is 10; the annular gas uniform distributor 82 and the cylindrical barrel 2 are communicated through openings at the upper end and the lower end of the axial gas inlet pipeline 83, and the vertical projection of the openings at the upper end and the lower end of the axial gas inlet pipeline 83 is rotated by an angle of alpha =50 degrees, as shown in fig. 6; the cross section of the axial inlet duct 83 is circular; the gas flow velocity in the axial gas inlet pipe 83 is 25 m/s; the air supply pipelines 81 are uniformly arranged in the circumferential direction, the number of the air supply pipelines is 4, and the air in the air supply pipelines 81 vertically enters the annular air uniform distributor 82, as shown in fig. 6.
This embodiment also differs from embodiment 1 in the turbulent flow tube 7. The turbulence pipes 7 are circumferentially and uniformly arranged, the number of the turbulence pipes is 3, gas in the turbulence pipes 7 vertically enters the material collecting pipe 5, and the flow velocity of the gas in the turbulence pipes 7 is 5 m/s.
The circulating fluidized bed boiler of a certain power plant has the requirement of blending fuel. When the fuel with lower ash content is blended and burned, the circulation ratio needs to be properly increased in order to maintain the bed pressure, so that the efficiency of the cyclone separator needs to be properly improved, and the adjusting means comprises the following steps:
1) the axial air inlet device is opened, the centrifugal motion of the fluid at the top of the cyclone is enhanced, and the ash jacking ring of the cyclone separator is weakened or eliminated;
2) the upper end of the adjusting center cylinder 92 is moved to be flush with the lower end of the fixed center cylinder 4 by the height adjusting means.
When the fuel with higher ash content is blended and burned, the efficiency of the cyclone separator needs to be reduced, and the adjusting means comprises the following steps:
1) closing the axial air inlet device 8;
2) moving the lower end of the adjusting central cylinder 92 to be flush with the lower end of the fixed central cylinder 4 by means of a height adjusting device;
3) and opening the flow surrounding pipe 7, and introducing turbulent air into the material collecting pipe 5 to form blow-by gas.
Those not described in detail in this specification are well within the skill of the art.
Although the present invention has been described with reference to the above embodiments, it should not be construed as being limited to the scope of the present invention, and any modifications and alterations made by those skilled in the art without departing from the spirit and scope of the present invention should fall within the scope of the present invention.
Claims (9)
1. A tangential axial flow combined reverse-rotating cyclone separator with adjustable efficiency is characterized by comprising a tangential air inlet pipeline (1), a cylindrical barrel (2), a conical barrel (3), a fixed central barrel (4), a material collecting pipe (5), an exhaust pipe (6), a turbulent flow pipe (7), an axial air inlet device and a height adjusting device; the height adjusting device comprises an adjusting shaft (91), an adjusting central cylinder (92), a middle object (93) and a closed transmission device (94);
the tangential air inlet pipeline (1) is tangentially connected to the side wall of the cylindrical barrel (2), the fixed central barrel (4) is connected with the top of the cylindrical barrel (2) and inserted into the cylindrical barrel (2), the exhaust pipe (6) is connected to the top of the cylindrical barrel (2), the conical barrel (3) is connected to the lower end of the cylindrical barrel (2), and the material collecting pipe (5) is connected to the bottom end of the conical barrel (3); the outlet of the air supply pipeline (81) is connected with the annular gas uniform distributor (82), and the two ends of the axial air supply pipeline (83) are respectively communicated with the annular gas uniform distributor (82) and the cylindrical barrel (2); the closed transmission device (94) is connected with the upper end of the adjusting shaft (91), the adjusting central cylinder (92) is connected with the lower end of the adjusting shaft (91), and the middle object (93) is connected with the lower end of the adjusting shaft (91); the turbulent flow pipe (7) is connected to the upper end of the material collecting pipe (5); the exhaust pipe (6), the fixed center cylinder (4), the annular gas uniform distributor (82), the adjusting shaft (91), the adjusting center cylinder (92), the middle object (93), the cylindrical cylinder (2), the conical cylinder (3) and the material collecting pipe (5) are coaxially arranged.
2. The axial flow combined counter-rotating cyclone separator with adjustable efficiency according to claim 1, characterized in that the axial inlet duct (83) is in a twisted shape; the axial air inlet pipelines (83) are uniformly arranged in the circumferential direction, and the number of the axial air inlet pipelines is 4-36; the annular gas uniform distributor (82) and the cylindrical barrel (2) are communicated through openings at the upper end and the lower end of an axial gas inlet pipeline (83), and the vertical projection rotation angle alpha of the openings at the upper end and the lower end of the axial gas inlet pipeline (83) is 0-60 degrees; the gas flow velocity in the axial gas inlet pipeline (83) is 10-30 m/s.
3. The axial flow cutting combined counter-rotating cyclone separator with adjustable efficiency as claimed in claim 1, characterized in that the inner diameter of the annular gas distributor (82) is larger than the outer diameter of the exhaust pipe (6), and the outer diameter of the annular gas distributor (82) is equal to the outer diameter of the cylindrical barrel (2).
4. The tangential axial flow combined counter-rotating cyclone separator with adjustable efficiency as claimed in claim 1 or 2, wherein the air supply pipes (81) are uniformly arranged in the circumferential direction, and the number of the air supply pipes is 2-10.
5. The axial flow cutting combined counter-rotating cyclone separator with adjustable efficiency as claimed in claim 1, wherein the adjusting shaft (91) can move up and down through the closed transmission device (94), the upper limit of the up-and-down moving range is that the lower end of the adjusting central cylinder (92) is flush with the lower end of the fixed central cylinder (4), and the lower limit of the up-and-down moving range is that the upper end of the adjusting central cylinder (92) is flush with the lower end of the fixed central cylinder (4); the adjusting center cylinder (92) is fixed at the lower end of the adjusting shaft (91), the diameter of the adjusting center cylinder (92) is smaller than that of the fixing center cylinder (4), a vertical beveling gap (921) is formed in the side wall of the adjusting center cylinder (92), the range of a beveling angle beta of the vertical beveling gap (921) is 10-80 degrees, the vertical beveling gaps (921) are uniformly distributed in the circumferential direction, and the number of the vertical beveling gaps is 0-36.
6. The tangential axial flow combined counter-rotating cyclone separator with adjustable efficiency as claimed in claim 1 or 5, characterized in that the intermediate objects (93) are spindle-shaped, the number of the intermediate objects is n, n is more than or equal to 1, and n intermediate objects (93) are sequentially fixed on the adjusting shaft from bottom to top(91) The above step (1); the distance H between the lowest end of the middle storage object (93) and the lower end of the adjusting central cylinder (92)10 to 1/2 for adjusting the diameter of the central cylinder (92); the vertical height H of the middle object (93)2Is 1 to 2 times of the diameter of the adjusting central cylinder (92); the maximum diameter D of the central object (93)max1/3-1/2 for adjusting the diameter of the central cylinder (92); the distance H between two adjacent middle objects (93)3Is Dmax0 to 1; the distance between the uppermost end of the middle object (93) and the top of the exhaust pipe (6) is H4Along with the up-and-down movement of the adjusting shaft (91), the H is ensured4≥0。
7. The tangential axial flow combined counter-rotating cyclone separator with adjustable efficiency as claimed in claim 1, wherein the turbulent flow tubes (7) are uniformly arranged in the circumferential direction, the number of the turbulent flow tubes is 1-4, and the gas flow velocity in the turbulent flow tubes (7) is 2-15 m/s.
8. The axial flow cutting combined counter-rotating cyclone separator with adjustable efficiency as claimed in claim 1, wherein the air supply duct (81) is provided with a valve for opening or closing the axial air inlet device; and a valve is arranged on the turbulent flow pipe (7) and used for opening or closing the turbulent flow pipe (7).
9. The combined axial flow tangential combined counter-rotating cyclone separator as claimed in claim 1, wherein the gaseous medium in the gas supply duct (81) and the turbulent flow tube (7) can be flue gas or air or water vapor or nitrogen.
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| CN202021725025.5U CN213529163U (en) | 2020-08-18 | 2020-08-18 | Axial flow cutting combined reverse-rotating cyclone separator with adjustable efficiency |
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| CN202021725025.5U CN213529163U (en) | 2020-08-18 | 2020-08-18 | Axial flow cutting combined reverse-rotating cyclone separator with adjustable efficiency |
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