Cyclone separator

Abstract

The invention discloses a cyclone separator, and relates to the technical field of cyclone plate demisters, the cyclone separator comprises an inner cylinder, a cyclone plate and an outer cylinder, the cylindrical inner cylinder and outer cylinder are coaxially arranged, a plurality of inner connecting plates are uniformly distributed on the outer wall of the inner cylinder in the circumferential direction, and a plurality of outer connecting plates are uniformly distributed on the inner side of an annular plate in the circumferential direction; the rotational flow plates are mounted between the corresponding inner connecting plates and outer connecting plates, the elevation angle of each rotational flow plate is larger than that of a traditional rotational flow plate demister and reaches 45-70 degrees, and resistance generated by the demister is greatly reduced. Strip-shaped protrusions are additionally arranged on the surface of the rotational flow plate, liquid drops can be gathered on the outer wall of the inner barrel along the rear sides of the protrusions, larger liquid drops are formed and return to the system, the function of capturing the liquid drops is achieved, and the device can also be used on the occasion with the low wind speed.

Description

Technical Field

[0001] The invention relates to the technical field of cyclone plate demisters, in particular to a cyclone separator. Background Art

[0002] The cyclone plate demister separates the droplets in the gas through the action of rotating flow and centrifugal force to achieve gas purification and treatment. It has the advantages of simple structure, convenient operation and good separation effect. It is widely used in the gas purification and treatment process in chemical, metallurgical, petroleum, electric power and other industries.

[0003] The cyclone plate demister uses the rotating flow inside the cyclone plate to form centrifugal force to separate the droplets in the gas. The cyclone plate demister consists of a cylindrical shell and an internal cyclone plate. After the gas enters the demister, it forms a rotating flow under the action of the cyclone plate. The droplets move outward under the action of the centrifugal force and deposit on the wall surface, and then drip from the wall surface. After being processed by the cyclone plate, the droplets in the gas are effectively separated, thereby achieving the purpose of demisting.

[0004] Gas flow rate is one of the important parameters that affect the working effect of the demister. Generally speaking, a higher gas flow rate helps the droplets to collide with the wall of the swirl plate, thereby improving the separation effect; however, too high a gas flow rate will lead to pressure loss and increased energy consumption, so it needs to be reasonably adjusted in practical applications.

[0005] The inclination angle of the swirl plate of the conventional swirl plate demister is 25°, and the angle at which the airflow is changed in direction by the swirl plate is large, which will produce greater resistance; at the same time, the inner cylinder of the conventional swirl plate demister is a closed structure, which reduces the flow area by about 11% and also forms a certain resistance. Summary of the invention

[0006] The purpose of the present invention is to provide a cyclone separator to solve the problems of large resistance and the need for a certain gas flow rate in the demisting process of a cyclone plate demister, and to improve production efficiency and achieve a better demisting effect.

[0007] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a cyclone separator, comprising an inner cylinder, a cyclone plate and an outer cylinder, the cylindrical inner cylinder and outer cylinder are coaxially arranged, the outer wall of the inner cylinder is circumferentially evenly provided with a plurality of inner connecting plates, the inner side of the annular plate is circumferentially evenly provided with a plurality of outer connecting plates, the cyclone plates are correspondingly installed between the inner connecting plates and the outer connecting plates, and the elevation angle of the cyclone plates is 45-70°.

[0008] In one embodiment, a plurality of the inner connecting plates are arranged on the outer wall of the inner cylinder at equal intervals along the same rotation direction, and the angle between the axis of the inner connecting plate and the plane where the bottom edge of the inner cylinder is located is 45-70°.

[0009] In one embodiment, a plurality of the outer connecting plates are arranged on the inner wall of the outer cylinder at equal intervals along the same rotation direction, and the rotation direction of the inner connecting plates is the same as that of the outer connecting plates.

[0010] In one embodiment, a central swirl plate is disposed inside the inner cylinder, and the angle between the axis of the central swirl plate and the plane where the bottom edge of the inner cylinder is located is 64°.

[0011] In one embodiment, a plurality of connecting ribs 1 are evenly distributed around the inner cylinder, and the connecting ribs 1 are used to connect and reinforce the inner wall of the inner cylinder.

[0012] In one embodiment, the outer cylinder includes an upper annular plate, a lower annular plate and two connecting ribs. The upper annular plate and the lower annular plate are arranged correspondingly at upper and lower intervals. The upper annular plate and the lower annular plate are connected and fixed by a plurality of the two connecting ribs evenly distributed circumferentially.

[0013] In one embodiment, upper and lower ends of the outer connecting plate are connected to the upper annular plate and the lower annular plate respectively.

[0014] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0015] The cyclone separator of the present invention comprises an inner cylinder, a cyclone plate and an outer cylinder. The cylindrical inner cylinder and the outer cylinder are coaxially arranged. A plurality of inner connecting plates are evenly arranged on the outer wall of the inner cylinder. A plurality of outer connecting plates are evenly arranged on the inner wall of the outer cylinder. A cyclone plate is installed between the corresponding inner connecting plates and the outer connecting plates. The cyclone plate elevation angle is larger than that of the traditional cyclone plate demister, reaching 45 to 70 degrees, which greatly reduces the resistance generated by the demister. Some strip-shaped protrusions are added to the surface of the cyclone plate. The droplets will gather on the outer wall of the inner cylinder along the rear side of the protrusions, forming larger droplets to return to the system, realizing the function of capturing droplets, and can also be used in occasions with low wind speeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of a cyclone separator;

[0018] Figure 2 for Figure 1 A-direction sectional view;

[0019] Figure 3 is a structural schematic diagram of an annular plate;

[0020] Figure 4 is a cross-sectional view of the annular plate;

[0021] Figure 5 It is a structural schematic diagram of the inner tube;

[0022] Figure 6 for Figure 5 A-direction sectional view;

[0023] Figure 7 Schematic diagram of the outer side of the inner tube;

[0024] Among them, 1. upper annular plate; 2. swirl plate; 3. inner tube; 4. outer connecting plate; 5. inner connecting plate; 6. lower annular plate; 7. connecting rib plate 2; 8. connecting rib plate 1; 9. central swirl plate. DETAILED DESCRIPTION

[0025] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0026] The purpose of the present invention is to provide a cyclone separator to solve the problems of large resistance and the need for a certain gas flow rate in the demisting process of a cyclone plate demister, and to improve production efficiency and achieve a better demisting effect.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figure 1-Figure 7 As shown, the present invention provides a cyclone separator, comprising an inner cylinder 3, a cyclone plate 2 and an outer cylinder, the cylindrical inner cylinder 3 and the outer cylinder are coaxially arranged, a plurality of inner connecting plates 5 are evenly distributed on the outer wall of the inner cylinder 3 in the circumferential direction, a plurality of outer connecting plates 4 are evenly distributed on the inner wall of the outer cylinder in the circumferential direction, a cyclone plate 2 is installed between the corresponding inner connecting plates 5 and the outer connecting plates 4, and the elevation angle of the cyclone plate 2 is 45-70°.

[0029] A plurality of inner connecting plates 5 are arranged on the outer wall of the inner cylinder 3 at equal intervals along the same rotation direction, and the angle between the axis of the inner connecting plates 5 and the plane where the bottom edge of the inner cylinder 3 is located is 45-70°; a plurality of outer connecting plates 4 are arranged on the inner wall of the outer cylinder at equal intervals along the same rotation direction, and the rotation direction of the inner connecting plates 5 is the same as that of the outer connecting plates 4, and the angle between the axis of the inner connecting plates 5 and the plane where the bottom edge of the inner cylinder 3 is located is the elevation angle of the swirl plate 2.

[0030] In one of the embodiments, a central swirl plate 9 is arranged inside the inner cylinder 3, and the central swirl plate 9 is fixed to the inner wall of the inner cylinder 3, and the angle between the axis of the central swirl plate 9 and the plane where the bottom edge of the inner cylinder 3 is located is 64°; a plurality of connecting ribs 8 are evenly distributed circumferentially on the inner wall of the inner cylinder 3, and the connecting ribs 8 are used to connect and reinforce the inner wall of the inner cylinder 3.

[0031] In one embodiment, the outer cylinder includes an upper annular plate 1, a lower annular plate 6 and a connecting rib plate 7. The upper annular plate 1 and the lower annular plate 6 are arranged correspondingly at upper and lower intervals. The upper annular plate 1 and the lower annular plate 6 are connected and fixed by a plurality of connecting rib plates 7 evenly distributed circumferentially; the upper and lower ends of the outer connecting plate 4 are respectively connected to the upper annular plate 1 and the lower annular plate 6.

[0032] The efficiency of the cyclone separator depends mainly on the following key factors:

[0033] 1. Design of swirl plate 2: The swirl plate 2 is the core component of the demister. Its design needs to consider not only the rotation speed and flow rate of the fluid, but also factors such as the shape, size and number of the swirl plate 2. Reasonable design of the swirl plate 2 can increase the centrifugal force and the separation efficiency of droplets. When the airflow with droplets passes through the surface of the swirl plate 2, some droplets will adhere to the surface of the swirl plate 2, but will eventually be carried away by the airflow. The surface of the improved swirl plate 2 has some strip-shaped protrusions added, and the droplets will gather along the rear side of the protrusions to the outer wall of the inner tube 3, forming larger droplets that return to the system, thereby achieving the function of capturing droplets.

[0034] 2. Gas flow rate: Gas flow rate is one of the important parameters that affect the working effect of the demister. Generally speaking, a higher gas flow rate helps the droplets to collide with the wall of the cyclone plate 2, thereby improving the separation effect. However, too high a gas flow rate will also lead to pressure loss and increased energy consumption, so it needs to be reasonably adjusted in practical applications.

[0035] 3. Droplet size: Droplet size is an important factor affecting the separation effect of the demister. Generally speaking, larger droplets are easier to separate. Therefore, in practical applications, if the droplet size in the gas is small, other methods such as increasing the number of cyclone plates 2 or using multiple cyclone plates 2 are needed to improve the demister effect.

[0036] 4. Liquid properties: The properties of the liquid will also affect the working effect of the demister. Different liquids have different surface tensions and viscosities, and these properties will affect the movement and separation process of the droplets on the swirl plate 2. Therefore, in practical applications, it is necessary to make reasonable selections and adjustments based on the properties of the liquid.

[0037] Through the design and adjustment of these four factors, the cyclone plate 2 demister can achieve better demisting effect.

[0038] After years of research and application, the present invention has introduced a cyclone separator, which can mainly solve the problems of large resistance and the need for a certain gas flow rate in the demisting process of the cyclone plate 2 demister, and improve production efficiency.

[0039] The cyclone separator of the present invention combines the basic principles of folding plate defoaming and cyclone plate 2 defoaming. The elevation angle of the cyclone plate 2 is larger than that of the traditional cyclone plate 2 demister, reaching 45 to 70 degrees, which greatly reduces the resistance generated by the demister. Some strip-shaped protrusions are added to the surface of the cyclone plate 2. The droplets will gather on the outer wall of the inner tube 3 along the rear side of the protrusions to form larger droplets that return to the system, realizing the function of capturing droplets. It can also be used in places with low wind speeds. The new cyclone plate 2 demister is made of PP material as a whole, has good corrosion resistance, is light in weight, and is easy to install.

[0040] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0041] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A cyclone separator, characterized in that: It includes an inner cylinder, a swirl plate and an outer cylinder, the inner cylinder and the outer cylinder are coaxially arranged, the outer wall of the inner cylinder is circumferentially evenly provided with a plurality of inner connecting plates, the inner side of the outer cylinder is circumferentially evenly provided with a plurality of outer connecting plates, the swirl plate is installed between the inner connecting plates and the outer connecting plates at corresponding positions, and the elevation angle of the swirl plate is 45-70°.

2. The cyclone separator according to claim 1, characterized in that: A plurality of inner connecting plates are arranged on the outer wall of the inner cylinder at equal intervals along the same rotation direction, and the angle between the axis of the inner connecting plate and the plane where the bottom edge of the inner cylinder is located is 45-70°.

3. The cyclone separator according to claim 2, characterized in that: The plurality of outer connecting plates are arranged on the inner wall of the outer cylinder at equal intervals along the same rotation direction, and the rotation direction of the inner connecting plates is the same as that of the outer connecting plates.

4. The cyclone separator according to claim 1, characterized in that: The inner cylinder is evenly distributed with a plurality of connecting ribs 1 around its circumference, and the connecting ribs 1 are used to connect and reinforce the inner wall of the inner cylinder.

5. The cyclone separator according to claim 4, characterized in that: A central swirl plate is arranged inside the inner cylinder, and the angle between the axis of the central swirl plate and the plane where the bottom edge of the inner cylinder is located is 64°.

6. The cyclone separator according to claim 1, characterized in that: The outer cylinder comprises an upper annular plate, a lower annular plate and two connecting rib plates. The upper annular plate and the lower annular plate are arranged correspondingly at upper and lower intervals. The upper annular plate and the lower annular plate are connected and fixed by a plurality of the two connecting rib plates evenly distributed in the circumferential direction.

7. The cyclone separator according to claim 6, characterized in that: The upper and lower ends of the outer connecting plate are connected to the upper annular plate and the lower annular plate respectively.

Images