Double-layer impinging stream desulfurization structure

Abstract

The utility model relates to the field of clean combustion, in particular to a double-layer impinging stream desulfurization structure which comprises a supporting frame, a first turbulent flow blade and a second turbulent flow blade, the first turbulent flow blade and the second turbulent flow blade are fixed on an inner ring of the supporting frame, and the first turbulent flow blade and the second turbulent flow blade are arranged in a layered mode in the axial direction of the supporting frame. The double-layer impinging stream desulfurization structure is provided with the first turbulent flow blades and the second turbulent flow blades which are arranged in the axial direction of the supporting frame in a layered mode, the flowing path of flue gas can be increased, the retention time of calcium oxide on the turbulent flow blades of the impinging stream reactor is prolonged, and the contact opportunity of sulfur dioxide gas in the flue gas and calcium oxide particles is increased. Meanwhile, the first spoiler blades and the second spoiler blades are distributed at intervals, so that the impact area and the reaction rate can be increased under the same mass, and the desulfurization efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of clean combustion technology, and in particular to a double-layer impingement flow desulfurization structure. Background Technology

[0002] In recent years, although traditional circulating fluidized bed dry desulfurization technology has achieved certain results, its large footprint and high difficulty in modification have caused difficulties for many enterprises in implementing environmental protection upgrades. Circulating fluidized bed requires separate desulfurization equipment, spray towers, and other supporting facilities, which not only increases investment costs but also has the problems of large footprint and low flexibility.

[0003] In view of the above problems, based on years of practical experience and professional knowledge in engineering applications of such products, and with the application of theoretical knowledge, the designer has actively conducted research and innovation in order to create a double-layer impinging flow desulfurization structure that is more practical. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a double-layer impingement flow desulfurization structure that improves the reaction efficiency of calcium oxide with sulfur dioxide in flue gas.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a double-layer impingement flow desulfurization structure, the double-layer impingement flow desulfurization structure including a support frame and a first turbulence blade and a second turbulence blade fixed to the inner ring of the support frame, the first turbulence blade and the second turbulence blade being arranged in layers along the axial direction of the support frame.

[0006] Furthermore, the support frame has a first layer of deflector blades and a second layer of deflector blades, with the first and second deflector blades arranged alternately.

[0007] Furthermore, the number of first deflector blades in the first layer is the same as the number of second deflector blades in the second layer.

[0008] Furthermore, the first layer of deflector blades has 3 blades, and the second layer of deflector blades has 3 blades.

[0009] Furthermore, both the first and second spoiler blades include a long side and a short side, the long side is fixed to the inner ring of the support frame, and the side of the long side that abuts against the support frame is a smooth arc surface.

[0010] Furthermore, the side of the first layer of deflector blades facing the flue inlet is the first air guiding surface, the side of the first layer of deflector blades facing away from the flue inlet is the second air guiding surface, the side of the second layer of deflector blades facing the flue inlet is the third air guiding surface, the side of the second layer of deflector blades facing away from the flue inlet is the fourth air guiding surface, and adjacent first deflector blades coincide after being rotated 120° along the axial direction, and adjacent second deflector blades coincide after being rotated 120° along the axial direction.

[0011] Furthermore, the two adjacent first and second spoiler blades overlap after being rotated 60° axially.

[0012] Furthermore, the inner ring of the support frame is a circular inner ring.

[0013] The beneficial effects of this invention are as follows: The double-layer impinging flow desulfurization structure has first and second turbulence blades arranged in layers along the axial direction of the support frame. This increases the flow path of the flue gas, prolongs the residence time of calcium oxide on the turbulence blades of the impinging flow reactor, and improves the contact opportunity between sulfur dioxide gas and calcium oxide particles in the flue gas. Simultaneously, the alternating distribution of the first and second turbulence blades increases the impact area and reaction rate under the same mass, greatly improving the desulfurization efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the double-layer impinging flow desulfurization structure in the embodiment of this utility model;

[0016] Figure 2 This is a side view of the swirl impact flow reactor in an embodiment of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the negative swirling impingement flow reactor in an embodiment of this utility model.

[0018] Reference numerals: 100, support frame; 200, first spoiler blade; 300, second spoiler blade; 201, first air guide surface; 202, second air guide surface; 203, long side; 204, short side; 301, third air guide surface; 302, fourth air guide surface. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0020] In the description of this utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. This embodiment is written in a progressive manner.

[0022] like Figures 1-3 The illustrated double-layer impinging flow desulfurization structure is the main desulfurization structure in an impinging flow reactor. Multiple structures can be welded together for combined use. It includes a support frame 100 and first and second baffle blades 200 and 300 fixed to the inner ring of the support frame 100. The first and second baffle blades 200 and 300 are arranged in layers along the axial direction of the support frame 100. The double-layer impinging flow desulfurization structure, with its layered first and second baffle blades 200 and 300 arranged along the axial direction of the support frame 100, increases the flow path of the flue gas, prolongs the residence time of calcium oxide on the baffle blades in the impinging flow reactor, and increases the contact opportunity between sulfur dioxide gas and calcium oxide particles in the flue gas. Simultaneously, the spaced distribution of the first and second baffle blades 200 and 300 increases the impact area and reaction rate under the same mass, significantly improving desulfurization efficiency.

[0023] As a preferred embodiment of the above embodiment, the inner ring of the support frame 100 is a circular inner ring with a diameter of 468 mm. The support frame 100 has a first layer of deflector blades 200 and a second layer of deflector blades 300, which are staggered and spaced apart. Figure 2As shown, the first baffle blade 200 and the second baffle blade 300 are distributed alternately, which increases the flow path of the flue gas, prolongs the residence time of calcium oxide in the baffle blades of the impinging flow reactor, and increases the contact opportunity between sulfur dioxide gas and calcium oxide particles in the flue gas. At the same time, the alternating distribution of the first baffle blade 200 and the second baffle blade 300 can increase the impact area and reaction rate under the same mass, greatly improving the desulfurization efficiency.

[0024] As a preferred embodiment of the above embodiment, the number of first baffle blades 200 in the first layer is the same as the number of second baffle blades 300 in the second layer. This ensures that the pressure drop of the flue gas after passing through each layer of baffle blades remains consistent, while also ensuring the regularity of the flue gas vortex path.

[0025] As a preferred embodiment of the above, the first layer of deflector blades has 3 blades, and the second layer of deflector blades has 3 blades.

[0026] As a preferred embodiment of the above, both the first deflector blade 200 and the second deflector blade 300 include a long side 203 and a short side 204. The long side 203 is fixed to the inner ring of the support frame 100, and the side of the long side 203 that abuts against the support frame 100 is a smooth arc surface.

[0027] In a preferred embodiment of the above embodiment, the side of the first layer of first deflector blades 200 facing the flue inlet is designated as the first air guide surface 201, the side of the first deflector blades 200 facing away from the flue inlet is designated as the second air guide surface 202, the side of the second layer of second deflector blades 300 facing the flue inlet is designated as the third air guide surface 301, and the side of the first deflector blades 200 facing away from the flue inlet is designated as the fourth air guide surface 302. Adjacent first deflector blades 200 and adjacent second deflector blades 300 coincide after rotating 120° axially. The radial cross-sections of both the first deflector blades 200 and the second deflector blades 300 are semi-circular arcs.

[0028] As a preferred embodiment, adjacent first and second baffle blades 200 and 300 are rotated 60° axially and then overlap. There is a certain gap in the radial direction between the first and second baffle blades 200 and 300. Part of the flue gas reacting on the first baffle blade 200 can pass through the gap, while another part impacts and reacts with the second baffle blade 300. This optimized flow channel achieves a double-layer impact reaction, ensuring the desulfurization rate of sulfur dioxide in the flue gas while also maintaining the flue gas flow rate.

[0029] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A double-layer impinging flow desulfurization structure, characterized in that, The dual-layer impingement flow desulfurization structure includes a support frame (100) and a first turbulence blade (200) and a second turbulence blade (300) fixed to the inner ring of the support frame (100). The first turbulence blade (200) and the second turbulence blade (300) are arranged in layers along the axial direction of the support frame (100).

2. The double-layer impinging flow desulfurization structure according to claim 1, characterized in that, The support frame (100) has a first layer of deflector blades (200) and a second layer of deflector blades (300), which are staggered.

3. The double-layer impinging flow desulfurization structure according to claim 2, characterized in that, The number of the first deflector blades (200) in the first layer is the same as the number of the second deflector blades (300) in the second layer.

4. The double-layer impinging flow desulfurization structure according to claim 3, characterized in that, The first layer has 3 first-stage deflector blades (200), and the second layer has 3 second-stage deflector blades (300).

5. The double-layer impinging flow desulfurization structure according to claim 2, characterized in that, Both the first spoiler blade (200) and the second spoiler blade (300) include a long side (203) and a short side (204). The long side (203) is fixed to the inner ring of the support frame (100), and the side of the long side (203) that abuts against the support frame (100) is a smooth arc surface.

6. The double-layer impinging flow desulfurization structure according to claim 3, characterized in that, The side of the first baffle blade (200) facing the flue inlet is the first air guide surface (201), the side of the first baffle blade (200) facing away from the flue inlet is the second air guide surface (202), the side of the second baffle blade (300) facing the flue inlet is the third air guide surface (301), the side of the second baffle blade (300) facing away from the flue inlet is the fourth air guide surface (302), two adjacent first baffle blades (200) coincide after rotating 120° along the axial direction, and two adjacent second baffle blades (300) coincide after rotating 120° along the axial direction.

7. The double-layer impinging flow desulfurization structure according to claim 6, characterized in that, The two adjacent first and second spoiler blades (200 and 300) overlap after being rotated 60° along the axial direction.

8. The double-layer impinging flow desulfurization structure according to claim 1, characterized in that, The inner ring of the support frame (100) is a circular inner ring with a diameter of 468 mm.

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