Mixed cyclone

Abstract

The utility model discloses a mixed cyclone which comprises a main pipeline, a branch pipeline is fixedly communicated with the middle of the main pipeline, a plurality of groups of third cyclones and a plurality of groups of second cyclones which are positioned on two sides of the branch pipeline are fixedly mounted in the main pipeline, and the third cyclones and the second cyclones are axially arranged towards two sides at intervals. A plurality of groups of first cyclones which are arranged along the axial direction are fixedly mounted on the branch pipeline, and a first flow guide plate and a second flow guide plate which are positioned on two sides of the branch pipeline are fixedly connected in the main pipeline. According to the utility model, when gas passes through the first cyclone and the second cyclone, the gas flow direction is deflected and rotated along the axial direction, a flow field is changed, irregular Brownian motion is strengthened, collision and fusion between two types of gas molecules are strengthened, and then, after the gas subjected to primary mixing passes through the third cyclone, the gas flow direction is changed, and the gas flow direction is changed. The flow field is changed again, so that the mixing time is greatly shortened, and the length of the mixing section is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of swirl mixing devices, in particular to a mixing swirler. Background Art

[0002] Industrial enterprise gases include blast furnace gas, converter gas, coke oven gas, producer gas, molten reduction gas, natural gas, chemical exhaust gas, liquefied petroleum gas, etc. The calorific values ​​of these gases are different. In order to meet the specific calorific value requirements of different users (such as industrial furnaces), one or more gases need to be mixed. In the past, the general method adopted was to simply mix one or more gases into another gas and then naturally mix them during pipeline transportation. This natural mixing method requires a long pipeline length after the mixing point, generally around 100m to 200m depending on the pipe diameter. However, due to site limitations, it is difficult to meet the requirements, resulting in stratification of the mixed gas, inaccurate online calorific value detection values ​​and flow measurement, and excessive calorific value fluctuations. This affects the stability of the temperature field of users such as furnaces, thereby affecting product quality and making it difficult to meet user requirements.

[0003] There is a so-called static mixer on the market. Its structure is to lay a certain length of steel plates circumferentially in the pipeline, and then lay a certain length of steel plates straight after a certain distance. Since the partitions in the pipeline are always laid parallel to the pipeline axis, the gas flow direction is always parallel to the pipeline axis, which is a laminar state without turbulence and swirl, and therefore cannot achieve the effect of enhanced and rapid mixing. Utility Model Content

[0004] The purpose of the present utility model is to provide a hybrid cyclone in order to solve the technical problems mentioned in the above background technology.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A hybrid cyclone comprises a main pipe, wherein a branch pipe is fixedly connected to the middle portion of the main pipe, a third cyclone and a second cyclone are fixedly mounted in the main pipe and located on either side of the branch pipe, wherein the third cyclone and the second cyclone are arranged in a plurality of groups spaced apart along the axial direction, and the branch pipe is fixedly mounted with a plurality of groups of first cyclones arranged in the axial direction, wherein a first guide plate and a second guide plate are fixedly connected in the main pipe and located on either side of the branch pipe, wherein the first guide plate and the second guide plate are arranged between the third cyclone and the second cyclone.

[0007] As a further description of the above technical solution:

[0008] The first cyclone includes an outer cylinder, blades and a conical head. The blades are arranged in an annular array between the conical head and the outer cylinder, and both ends of the blades are welded to the conical head and the outer cylinder respectively.

[0009] As a further description of the above technical solution:

[0010] The first cyclone, the second cyclone and the third cyclone have the same structure.

[0011] As a further description of the above technical solution:

[0012] The first guide plate is arranged close to the air inlet end of the main pipeline, and is a circular plate with the upper third of the plate cut off.

[0013] As a further description of the above technical solution:

[0014] The second guide plate is arranged close to the gas outlet end of the main pipeline, and is a circular plate with the lower third of the second guide plate cut off.

[0015] As a further description of the above technical solution:

[0016] The two ends of the main pipeline are respectively welded with a main pipe air inlet flange and a main pipe air outlet flange, and the end of the branch pipeline is welded with a branch pipe air inlet flange.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] 1. In the present invention, two types of gases enter the main pipe through the main pipe inlet and the branch pipe inlet, respectively, are mixed, and then flow out through the main pipe outlet. When the gases pass through the first and second cyclones, the airflow direction is deflected and rotated along the axial direction, changing the flow field, intensifying the irregular Brownian motion and enhancing the collision and fusion between the two types of gas molecules. After the initial mixing, the gas passes through the third cyclone, and the flow field changes again, greatly shortening the mixing time and reducing the length of the mixing section.

[0019] 2. In the present invention, the two types of gases whose flow fields are changed by the first cyclone and the second cyclone respectively are blocked by the guide plates and are fully mixed between the two sets of guide plates, thereby increasing the gas mixing time and reducing the length of the mixing section. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shows an explosion diagram of a hybrid cyclone provided according to an embodiment of the present utility model;

[0021] Figure 2 A schematic structural diagram of a cyclone provided according to an embodiment of the present utility model is shown;

[0022] Figure 3 A schematic diagram of the internal structure of the main pipeline provided according to an embodiment of the utility model is shown;

[0023] Figure 4 A schematic cross-sectional view of a main pipeline provided according to an embodiment of the present utility model is shown.

[0024] Legend:

[0025] 1. Main pipe; 2. Main pipe inlet flange; 3. Main pipe outlet flange; 4. Branch pipe; 5. Branch pipe inlet flange; 6. Third cyclone; 7. Second cyclone; 8. First cyclone; 9. Outer cylinder; 10. Blades; 11. Conical head; 12. Second guide plate; 13. First guide plate. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-4 The utility model provides a technical solution: a hybrid cyclone, comprising a main pipe 1, a branch pipe 4 is fixedly connected to the middle of the main pipe 1, a main pipe inlet flange 2 and a main pipe outlet flange 3 are welded at both ends of the main pipe 1, and a branch pipe inlet flange 5 is welded at the end of the branch pipe 4. A third cyclone 6 and a second cyclone 7 are fixedly installed on both sides of the branch pipe 4. The third cyclone 6 and the second cyclone 7 are arranged in multiple groups at intervals on both sides along the axial direction. A plurality of groups of first cyclones 8 arranged in the axial direction are fixedly installed on the branch pipe 4. The first cyclone 8, the second cyclone 7 and the third cyclone 6 have the same structure. The first cyclone 8 includes an outer cylinder 9, blades 10 and a conical head 11. The blades 10 are arranged in an annular array between the conical head 11 and the outer cylinder 9. The two ends of the blades 10 are welded to the conical head 11 and the outer cylinder 9 respectively. The head of the conical head 11 is set in the opposite direction of the airflow. The two types of gases enter the main pipe 1 through the air inlet of the main pipe 1 and the air inlet of the branch pipe 4 respectively, are mixed, and then flow out through the air outlet of the main pipe 1. When the gas passes through the first cyclone 8 and the second cyclone 7, the airflow direction is deflected and rotated along the axial direction, the flow field is changed, and the irregular Brownian motion is strengthened, which strengthens the collision and fusion between the two types of gas molecules. After that, the gas after the initial mixing passes through the third cyclone 6, and the flow field is changed again, which greatly shortens the mixing time and reduces the length of the mixing section.

[0028] Specifically, such as Figure 3 and Figure 4As shown, a first guide plate 13 and a second guide plate 12 are fixedly connected to the main pipe 1, located on either side of the branch pipe 4. These first and second guide plates 13, 12 are positioned between the third cyclone 6 and the second cyclone 7. The first guide plate 13 is located near the inlet end of the main pipe 1 and is a circular plate with the upper third cut off. The second guide plate 12 is located near the outlet end of the main pipe 1 and is a circular plate with the lower third cut off. The two types of gases, whose flow fields have been altered by the first cyclone 8 and the second cyclone 7, are blocked by the guide plates and fully mixed between the two sets of guide plates, increasing the gas mixing time and thus reducing the length of the mixing section.

[0029] Working principle: When in use, the two types of gases enter the main pipe 1 through the air inlet of the main pipe 1 and the air inlet of the branch pipe 4 respectively, are mixed, and then flow out through the air outlet of the main pipe 1. When the gas passes through the first cyclone 8 and the second cyclone 7, the airflow direction is deflected and rotated along the axial direction, the flow field is changed, and the irregular Brownian motion is strengthened, which strengthens the collision and fusion between the two types of gas molecules. Afterwards, it is blocked by the guide plate and fully mixed between the two sets of guide plates, which increases the gas mixing time. Finally, after the initial mixing, the gas passes through the third cyclone 6, and the flow field changes again, which greatly shortens the mixing time and reduces the length of the mixing section.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hybrid cyclone, comprising a main pipe (1), characterized in that: The middle of the main pipe (1) is fixedly connected to a branch pipe (4), and a third cyclone (6) and a second cyclone (7) are fixedly installed on both sides of the branch pipe (4) in the main pipe (1), and multiple groups of the third cyclone (6) and the second cyclone (7) are arranged at intervals on both sides along the axial direction. Multiple groups of first cyclones (8) arranged along the axial direction are fixedly installed on the branch pipe (4), and a first guide plate (13) and a second guide plate (12) are fixedly connected on both sides of the branch pipe (4) in the main pipe (1), and the first guide plate (13) and the second guide plate (12) are arranged between the third cyclone (6) and the second cyclone (7).

2. A hybrid cyclone according to claim 1, characterized in that: The first cyclone (8) comprises an outer cylinder (9), blades (10) and a conical head (11); the blades (10) are arranged in an annular array between the conical head (11) and the outer cylinder (9); and the two ends of the blades (10) are respectively welded to the conical head (11) and the outer cylinder (9).

3. A hybrid cyclone according to claim 2, characterized in that: The first cyclone (8), the second cyclone (7) and the third cyclone (6) have the same structure.

4. A hybrid cyclone according to claim 3, characterized in that: The first guide plate (13) is arranged close to the air inlet end of the main pipe (1), and the first guide plate (13) is a circular plate with the upper third of the plate cut off.

5. The hybrid cyclone according to claim 4, characterized in that: The second guide plate (12) is arranged close to the gas outlet end of the main pipe (1), and the second guide plate (12) is a circular plate with the lower third of the plate cut off.

6. A hybrid cyclone according to claim 5, characterized in that: The two ends of the main pipeline (1) are respectively welded to a main pipe air inlet flange (2) and a main pipe air outlet flange (3), and the end of the branch pipeline (4) is welded to a branch pipe air inlet flange (5).

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