Double-inlet multi-stage matrix type cyclone separator capable of realizing efficient gas-solid separation

Abstract

The utility model relates to the technical field of gas-solid separation, in particular to a double-inlet multi-stage matrix type cyclone separator capable of realizing efficient gas-solid separation, which comprises a primary cyclone separator, the device further comprises a second-stage cyclone separator and a third-stage cyclone separator. The two symmetrical inlets are formed in the first-stage cyclone separator, flow field asymmetry caused by an inlet structure can be effectively solved, the spiral guide vanes are arranged at the inlet of the second-stage cyclone separator, the pressure drop of the system is reduced by guiding airflow, and the separation efficiency is further improved. And a multi-inlet structure is arranged on the three-stage cyclone separator, so that the pressure drop of the cyclone separator can be effectively reduced through the multi-inlet structure, the separation efficiency of the cyclone separator is improved, the stability of an internal flow field of the cyclone separator is greatly improved, and the gas-solid separation performance is excellent. The cyclone separator is suitable for efficient dust removal and particle recovery under high-density and high-pressure working conditions of petrochemical engineering, coal chemical engineering and the like, the pressure drop of the cyclone separator is effectively reduced, and the separation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas -solid separation technical field especially relates to a kind of double-inlet multistage matrix cyclone separator that can realize high-efficiency gas-solid separation. BACKGROUND

[0002] Cyclone separator is a kind of equipment using centrifugal force to realize gas-solid separation, because its simple structure, manufacturing and maintenance are convenient, can be widely used in high temperature and high pressure environment long-period stable operation and is applied to the separation occasion in petroleum chemical industry, coal chemical industry, metallurgy, mining, light industry and other multiple fields.Cyclone separator is a kind of equipment, and the structure determines flow field, and flow field determines performance, and it is crucial to develop suitable cyclone separator structure.The single-inlet design of traditional cyclone separator often leads to flow field asymmetry in the process of operation, causes vortex core and short-circuit flow problem, reduces separation efficiency;separation particles are easy to accumulate in dust outlet, form blockage, affect equipment running stability;Multi-stage series structure often faces unstable flow field, excessively high pressure drop in design, limits the improvement of separation performance.Currently, the research on cyclone separator structure mainly concentrates on inlet structure, exhaust pipe structure, cylinder structure, cone structure and ash bucket structure, among which, since inlet is the only gas inlet area of cyclone separator, its form and size are particularly important to the performance of cyclone separator.But there is still lack of cyclone separator with high separation efficiency and low pressure drop under high pressure and high density working condition in current market.

[0003] Therefore, in view of the single-inlet design of existing cyclone separator often leading to flow field asymmetry, and multi-stage series structure often facing unstable flow field, excessively high pressure drop in design, a kind of double-inlet multistage matrix cyclone separator with strong particle sorting capacity, high efficiency and low pressure drop advantage can be designed to realize high-efficiency gas-solid separation. SUMMARY

[0004] In order to overcome the single-inlet design of existing cyclone separator often leading to flow field asymmetry, and multi-stage series structure often facing unstable flow field, excessively high pressure drop in design.

[0005] The utility model discloses a technical scheme can realize high -efficient gas -solid separation's double -entry multistage matrix type cyclone separator, including one -level cyclone separator, still including two -level cyclone separator, three -level cyclone separator, one -level cyclone separator includes one -level cyclone cylinder, and the upper end of one -level cyclone cylinder is connected with the top cap, and the surface of one -level cyclone cylinder is connected with the air inlet, and the lower end of top cap is fixed with the cone, and the cone includes the outer cone, and the lower end of cone is connected with the dust outlet, and the upper end of dust outlet is provided with the inner cone, and the outer cone and the inner cone are provided with the ash storage hopper between, and the inside of one -level cyclone separator is provided with two -level cyclone separator, and the lower end of top cap is fixed with the upper baffle, and the lower end of top cap is connected with the baffle, and the upper end of baffle is provided with two -level cyclone separator air inlet, and the upper end of top cap is connected with the flow guider, and the upper end of flow guider is connected with two -level cyclone separator air outlet, and two -level cyclone separator air outlet is provided with three -level cyclone separator away from the one end of flow guider, and the upper end of three -level cyclone separator is connected with the air outlet, and the lower end of three -level cyclone separator is connected with the guide pipe.

[0006] Preferably, the first cyclone separator can play a preliminary separation role, the second cyclone separator can further improve the separation efficiency through the matrix distribution and the design of the spiral flow guide vane, and the third cyclone separator can further optimize the airflow path through the multi-inlet structure, can effectively enhance the flow field symmetry through the two air inlets, and can reduce the short-circuit flow proportion, and the spiral flow guide vane arranged at the inlet of the second cyclone separator can not only reduce the pressure drop of the cyclone separator, but also promote the smooth transition of the airflow, reduce the energy loss, and compared with the traditional cyclone separator, the separator can not only realize the efficient gas-solid separation, but also adopt the multi-level and multi-stage separation design to make the whole system have excellent separation performance and stability.

[0007] Preferably, the first cyclone separator is nested with the second cyclone separator, and the second cyclone separator is nested with the third cyclone separator.

[0008] Preferably, the first cyclone separator is a double-inlet structure cyclone separator, the air inlets are tangent to the outer wall of the first cyclone cylinder, the air inlets are provided with two, and the inlet directions of the two air inlets are opposite.

[0009] Preferably, the second cyclone separator is a matrix type cyclone separator, the second cyclone separator is distributed in a matrix manner, and the second cyclone separator is provided with six.

[0010] Preferably, the third cyclone separator is a single-stage cyclone separator, the third cyclone separator is provided with multiple air inlets, and the air inlets of the third cyclone separator are in communication with the air outlet of the second cyclone separator.

[0011] The inner side of the flow guide is connected with flow guide vanes, the flow guide vanes are in spiral structure, four flow guide vanes are arranged, the rotation angle of the flow guide vanes is 38°, and the extension direction of the flow guide vanes is perpendicular to the plane direction of the inlet.

[0012] The inner side of the flow guide vane is fixed with a flow guide cone, and the flow guide cone is in bullet shape.

[0013] The beneficial effects of the utility model are as follows: the double-inlet multi-stage matrix cyclone separator capable of realizing efficient gas-solid separation adopts multi-stage separation and optimized airflow path design, realizes efficient particle removal, the primary cyclone separator plays a role of preliminary separation, the secondary cyclone separator further improves separation efficiency through matrix distribution and spiral flow guide vane design, and the tertiary cyclone separator further optimizes the airflow path through a multi-inlet structure, the multi-stage and multi-level separation design makes the whole system have excellent separation performance and stability, the symmetric double-inlet design greatly enhances the symmetry of the flow field, effectively reduces the occurrence of short-circuit flow phenomenon, thereby improving the overall separation efficiency, the spiral outlet design introduced in the multi-stage series structure optimizes airflow distribution, makes the airflow entering the next stage separator more stable, thereby further improving the separation effect, and the spiral flow guide vane arranged at the inlet of the secondary cyclone separator not only reduces the pressure drop of the cyclone separator, but also promotes the smooth transition of the airflow and reduces energy loss. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a new sectional view of the utility model;

[0015] Fig. 2 It is a new top view of the utility model;

[0016] Fig. 3 It is a structural schematic view of the flow guide vane of the utility model.

[0017] Explanation of reference numerals: 1, primary cyclone separator; 2, primary cyclone cylinder; 3, top cover; 4, air inlet; 5, cone; 6, outer layer cone; 7, inner layer cone; 8, ash hopper; 9, dust outlet; 10, secondary cyclone separator; 11, tertiary cyclone separator; 12, air outlet; 13, upper partition plate; 14, duct; 15, partition plate; 16, flow guide; 17, secondary cyclone separator air inlet; 18, secondary cyclone separator air outlet; 19, flow guide vane; 20, flow guide cone. DETAILED DESCRIPTION

[0018] The utility model will be further explained in connection with the drawings and examples.

[0019] Please refer to Figs. 1-2The utility model provides an embodiment: a kind of double-inlet multistage matrix cyclone separator that can realize efficient gas-solid separation, comprising a primary cyclone separator 1;Further comprising secondary cyclone separator 10, tertiary cyclone separator 11, primary cyclone separator 1 includes primary cyclone 2, the upper end of primary cyclone 2 is connected with top cap 3, the surface of primary cyclone 2 is connected with air inlet 4, the lower end of top cap 3 is fixed with cone 5, cone 5 includes outer cone 6, the lower end of cone 5 is connected with dust outlet 9, the upper end of dust outlet 9 is provided with inner cone 7, dust hopper 8 is arranged between outer cone 6 and inner cone 7, the inside of primary cyclone separator 1 is provided with secondary cyclone separator 10, the lower end of top cap 3 is fixed with upper baffle 13, the lower end of top cap 3 is connected with baffle 15, the upper end of baffle 15 is provided with secondary cyclone separator air inlet 17, the upper end of top cap 3 is connected with flow inducer 16, the upper end of flow inducer 16 is connected with secondary cyclone separator air outlet 18, the end of secondary cyclone separator air outlet 18 away from flow inducer 16 is provided with tertiary cyclone separator 11, the upper end of tertiary cyclone separator 11 is connected with air outlet 12, the lower end of tertiary cyclone separator 11 is connected with conduit 14, by primary cyclone separator 1 can play the role of preliminary separation, secondary cyclone separator 10 is further improved the separation efficiency by the design of matrix distribution and helical flow guide vane, and tertiary cyclone separator 11 is further optimized airflow path by multiple inlet structure, also by being provided with two air inlets can effectively enhance flow field symmetry, reduce short-circuit flow proportion, compared with traditional cyclone separator, the separator not only realizes efficient gas-solid separation, but also adopts multistage, multilevel separation design to make that entire system has excellent separation performance and stability, primary cyclone separator 1 is nested with secondary cyclone separator 10, secondary cyclone separator 10 is nested with tertiary cyclone separator 11, by the design of primary cyclone separator 1, secondary cyclone separator 10 and tertiary cyclone separator 11 from outside to inside in turn nested, can make full use of space, improve overall separation efficiency, primary cyclone separator 1 is double-inlet structure cyclone separator, air inlet 4 is tangent to the outer wall of primary cyclone 2, air inlet 4 is provided with two, and the inlet direction of two air inlets 4 is opposite, by being arranged opposite two air inlets 4, it is favorable to balance airflow into separator, reduce airflow deflection phenomenon in separator.

[0020] Please refer to Figs. 2-3In the embodiment, the secondary cyclone separator 10 is a matrix type cyclone separator, the secondary cyclone separators 10 are distributed in a matrix manner, and six secondary cyclone separators 10 are arranged. This distribution manner can ensure that the gas flow is uniformly distributed into each secondary cyclone separator 10 after passing through the primary cyclone separator 1. The tertiary cyclone separator 11 is a single-stage cyclone separator, and the tertiary cyclone separator 11 is provided with a plurality of air inlets. The air inlets of the tertiary cyclone separator 11 are in communication with the air outlets 18 of the secondary cyclone separators. The plurality of air inlets of the tertiary cyclone separator 11 can effectively reduce the pressure drop of the cyclone separator and improve the separation efficiency of the cyclone separator. The inner side of the flow guide 16 is connected with flow guide vanes 19. The flow guide vanes 19 are in a spiral structure, and four flow guide vanes 19 are arranged. The rotation angle of the vanes is 38°, and the extension direction of the vanes is perpendicular to the plane direction of the inlet. The spiral flow guide vanes 19 arranged in the secondary cyclone separator 10 can make the gas flow along a spiral path, thereby reducing the pressure drop and enabling the gas flow to enter the tertiary cyclone separator 11 stably in a tangential direction.

[0021] The inner side of the flow guide vane 19 is fixed with a flow guide cone 20. The flow guide cone 20 is in a bullet shape structure, and the flow guide cone 20 is helpful for guiding the gas flow to flow smoothly along the surface thereof.

[0022] In operation, the gas of the previous process enters the primary cyclone separator 1 through the two air inlets 4 simultaneously, rotates downward along the inner wall of the cylinder, and finally enters the secondary cyclone separator 10 through the secondary cyclone separator air inlet 17 after passing through the upper partition plate 13. In this process, most of the particles carried by the gas are thrown to the wall surface of the cone 5 under the centrifugal action, and are transported downward to the dust hopper 8 of the primary cyclone separator 1 along the near-wall gas flow for collection, and finally discharged from the dust discharge port 9.

[0023] Then, the remaining small part of particles carried by the gas entering the secondary cyclone separator 10 rotates downward along the inner wall of the secondary cyclone separator 10 after passing through the flow guide vanes, and further particle separation is performed in the secondary cyclone separator 10. The separated particles enter the dust hopper 8 along the partition plate 15 for collection, and the gas enters the tertiary cyclone separator 11 from the secondary cyclone separator air outlet 18 for the final removal of particles. In this process, the remaining small part of particles carried by the gas are thrown to the wall under the centrifugal action, and are transported downward to the dust discharge port 9 along the near-wall gas flow for discharge. Finally, the separated gas is discharged from the air outlet 12.

[0024] Through the above steps, the symmetry of the flow field is enhanced by using a double-inlet design, a primary cyclone separator plays a role in preliminary separation, a secondary cyclone separator further improves the separation efficiency through matrix distribution and spiral guide vane design, and a tertiary cyclone separator further optimizes the airflow path through a multi-inlet structure. This multi-stage and multi-level separation design makes the entire system have excellent separation performance and stability. The separator not only greatly improves the stability of the internal flow field of the cyclone separator, realizes efficient gas-solid separation, but also effectively reduces the pressure drop of the cyclone separator and improves the separation efficiency of the equipment, so as to solve the problem that the single-inlet design of the existing cyclone separator often leads to an asymmetric flow field, and the multi-stage series structure is prone to unstable flow field and high pressure drop in design.

[0025] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by those skilled in the art without departing from the purpose of the utility model.

Claims

1. A double-inlet multi-stage matrix cyclone separator capable of achieving high efficiency gas-solid separation, comprising a primary cyclone separator (1); characterized in that: The utility model also includes secondary cyclone separator (10), tertiary cyclone separator (11), the first cyclone separator (1) includes a first cyclone cylinder (2), the upper end of first cyclone cylinder (2) is connected with top cover (3), the surface of first cyclone cylinder (2) is connected with air inlet (4), the lower end of top cover (3) is fixed with cone (5), cone (5) includes outer cone (6), the lower end of cone (5) is connected with dust outlet (9), the upper end of dust outlet (9) is provided with inner cone (7), the storage hopper (8) is arranged between outer cone (6) and inner cone (7), the inside of first cyclone separator (1) is provided with secondary cyclone separator (10), the lower end of top cover (3) is fixed with upper baffle (13), the lower end of top cover (3) is connected with baffle (15), the upper end of baffle (15) is provided with secondary cyclone separator air inlet (17), the upper end of top cover (3) is connected with flow guide (16), the upper end of flow guide (16) is connected with secondary cyclone separator air outlet (18), the end, away from flow guide (16) of secondary cyclone separator air outlet (18) is provided with tertiary cyclone separator (11), the upper end of tertiary cyclone separator (11) is connected with air outlet (12), the lower end of tertiary cyclone separator (11) is connected with guide pipe (14).

2. The dual inlet multi-stage matrix cyclone separator capable of achieving high efficiency gas-solid separation according to claim 1, characterized in that: The first cyclone separator (1) is connected with the secondary cyclone separator (10) in a nested manner, and the secondary cyclone separator (10) is connected with the tertiary cyclone separator (11) in a nested manner.

3. The dual inlet multi-stage matrix cyclone separator with high efficiency gas-solid separation according to claim 2, characterized in that: The first cyclone separator (1) is a double-inlet structure cyclone separator, the air inlets (4) are tangent to the outer wall of the first cyclone cylinder (2), and the air inlets (4) are provided in two, and the inlet directions of the two air inlets (4) are opposite.

4. The dual inlet multi-stage matrix cyclone separator with high efficiency gas-solid separation according to claim 2, characterized in that: The secondary cyclone separator (10) is a matrix type cyclone separator, the secondary cyclone separator (10) is distributed in a matrix manner, and the secondary cyclone separator (10) is provided in six.

5. The dual inlet multi-stage matrix cyclone separator with high efficiency gas-solid separation according to claim 1, characterized in that: The tertiary cyclone separator (11) is a single-stage cyclone separator, the tertiary cyclone separator (11) is provided with multiple air inlets, and the air inlets of the tertiary cyclone separator (11) are in communication with the secondary cyclone separator air outlet (18).

6. The dual inlet multi-stage matrix cyclone separator with high efficiency gas-solid separation according to claim 1, characterized in that: The inner side of the flow guide (16) is connected with the flow guide vane (19), the flow guide vane (19) is in a spiral structure, the flow guide vane (19) is provided in four, the rotation angle of the vane is 38°, and the extension direction of the vane is perpendicular to the plane direction of the inlet.

7. The dual inlet multi-stage matrix cyclone separator with high efficiency gas-solid separation according to claim 6, characterized in that: The inner side of the flow guide vane (19) is fixed with the flow guide cone (20), and the flow guide cone (20) is in a bullet shape structure.

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