SCR (Selective Catalytic Reduction) reactor internal structure and SCR reactor thereof

Abstract

The utility model discloses an SCR (Selective Catalytic Reduction) reactor internal structure and an SCR reactor thereof. The SCR reactor internal structure comprises a main frame, and at least one separation frame is arranged in the main frame; the number of the partition frames is two, and the main frame is divided into three installation spaces. The unit catalytic part is arranged in the mounting space in a sliding manner; the unit catalysis part comprises a main plate body, and the main plate body is arranged in the main frame in a sliding mode; an integrated board is fixedly arranged in the middle of the main board body, and a catalyst layer is fixedly arranged on the integrated board. The catalyst component is arranged to be of a vibration structure, so that when the reactor works, the whole catalyst can be blown to vibrate under the conveying of flue gas, the situation that dust is attached to the surface of the catalyst is reduced, and the use efficiency of the catalyst is improved; and meanwhile, under the action of the ash remover, the combination of blowing and vibration can be realized, and the effect of the ash remover in the ash removal process is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of SCR reactors, in particular to an SCR reactor internal structure and an SCR reactor. Background Art

[0002] An SCR denitrification reactor is a selective catalyst-based nitrogen oxide (NOx) reduction device used to reduce NOx emissions from fuels such as coal. SCR denitrification processes can clog the catalyst surface due to dust in the flue gas. To address this, a dust removal device is typically installed to remove the dust.

[0003] At present, the commonly used sonic soot blowers, rake soot blowers and pipe network soot blowers or the combination of the three are used in the SCR denitrification system. In the actual cleaning process, since the catalyst is fixedly installed, the following problems exist when using the above three soot blowers. For example, the sonic soot blower has a small cleaning energy and cannot remove sticky, severely blocked, and hard ash scale. The rake soot blower has moving parts and is prone to failure. At the same time, high-pressure cleaning has the effect of generating an airflow that vertically sweeps the surface of the catalyst, which will cause damage to the catalyst surface. The pipe network soot blower has high energy consumption and the catalyst is easily damaged. In addition, due to the large number of nozzles, the cleaning flow rate of each nozzle will be different. If it is not arranged properly, it will lead to poor cleaning effects in some places and local dead zones.

[0004] In summary, the existing SCR reactor has the problems of constant cleaning and poor efficiency. Utility Model Content

[0005] The utility model aims to overcome the problem that the catalyst structure inside the existing SCR reactor is a fixed structure, resulting in poor cleaning effect of the existing ash cleaner, and provides an SCR reactor internal structure and an SCR reactor.

[0006] An internal structure of an SCR reactor, comprising

[0007] A main frame, wherein at least one partition frame is provided inside the main frame; two partition frames are provided to divide the main frame into three installation spaces;

[0008] a unit catalytic component slidably disposed in the installation space;

[0009] The unit catalyst component includes a main plate body, which is slidably arranged inside the main frame; an integrated plate is fixedly arranged in the middle of the main plate body, and a catalyst layer is fixedly arranged on the integrated plate.

[0010] Furthermore, the main frame includes a bottom frame body, and guide rods are vertically arranged at the four corners of the bottom frame body; a top frame body is fixedly arranged at the upper end of the guide rod.

[0011] Furthermore, a first spring group and a second spring group are sleeved on the guide rod of the installation space, and the main board is located between the first spring group and the second spring group.

[0012] Furthermore, through holes are provided at the four corners of the main board body, and the through holes are sleeved on the guide rods.

[0013] An SCR reactor has any one of the above-mentioned SCR reactor internal structures.

[0014] Furthermore, it includes a main body, one side of which is provided with an opening; one side of the main frame is provided with a cover plate with a handle, and the cover plate is sealed and buckled at the opening; and a dust collector is provided in the main body.

[0015] The beneficial effects of the present invention are as follows: by arranging the catalyst component as a vibration structure, when the reactor is working, the flue gas can blow the catalyst as a whole to vibrate, thereby reducing the occurrence of dust adhering to the catalyst surface and improving the efficiency of catalyst use; at the same time, under the action of the ash cleaner, the combination of blowing and vibration can be realized, further improving the effect of the ash cleaner in the cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structural diagram of this structure;

[0017] Figure 2 This is a schematic diagram of the front view of the structure;

[0018] Figure 3 Schematic diagram of the structure of the unit catalyst;

[0019] Figure 4 Schematic diagram of the structure of the reactor;

[0020] In the figure, 1-main frame, 11-guide rod, 12-bottom frame, 13-top frame, 2-partition frame, 3-unit catalyst, 30-main board, 31-through hole, 32-integrated board, 33-catalyst layer, 41-first spring group, 42-second spring group, 5-cover plate, 51-handle, 100-main body, 101-installation space, 110-opening. DETAILED DESCRIPTION

[0021] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.

[0022] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0023] Example 1

[0024] like Figures 1 to 3 The internal structure of an SCR reactor is shown in FIG. The main frame 1 includes a bottom frame 12, with guide rods 11 vertically mounted at the four corners of the bottom frame 12. A top frame 13 is fixedly mounted on the upper end of the guide rods 11. Specifically, the top frame 13 and the bottom frame 12 have the same structure, consisting of four rods welded end-to-end. The guide rods 11 are vertically connected between the four corners of the bottom frame 12 and the four corners of the top frame 13.

[0025] At least one partition frame 2 is provided inside the main frame 1. The structure of the partition frame 2 is the same as that of the bottom frame 12 or the top frame 13. The partition frame 2 is fixed as a whole and does not slide relative to the bottom frame 12 or the top frame 13. In this embodiment, two partition frames 2 are provided, dividing the main frame 1 into three installation spaces 101.

[0026] The guide rods 11 of the installation space 101 are sleeved with a first spring group 41 and a second spring group 42, and the main body 30 is located between the first spring group 41 and the second spring group 42. Specifically, each spring group consists of four springs, which are sleeved on four guide rods 11 respectively.

[0027] The catalyst unit 3 is slidably disposed in the installation space 101. The catalyst unit 3 includes a main plate 30 slidably disposed within the main frame 1. An integrated plate 32 is fixedly disposed in the middle of the main plate 30, and a catalyst layer 33 is fixedly disposed on the integrated plate 32. Through holes 31 are provided at the four corners of the main plate 30, and the through holes 31 are sleeved onto the guide rods 11.

[0028] During the flue gas blowing or the cleaning process of the ash cleaner, the unit catalyst 3 will repeatedly compress the first spring group 41 and the second spring group 42 under the action of external force. Under the rebound of the spring group, the entire unit catalyst 3 is vibrated to prevent smoke from adhering to the catalyst surface and improve the reduction effect of the catalyst.

[0029] Example 2

[0030] like Figures 1 to 4 As shown, an SCR reactor has any of the above-mentioned internal structures of the SCR reactor.

[0031] In this solution, it includes a main body 100, one side of which is provided with an opening 110; one side of the main frame 1 is provided with a cover plate 5 with a handle 51, and the cover plate 5 is sealed and fastened at the opening 110; and a dust collector is provided in the main body 100.

[0032] By setting the catalyst component as a vibrating structure, when the reactor is working, the flue gas can blow the catalyst as a whole to vibrate, reducing the occurrence of dust adhering to the catalyst surface and improving the efficiency of catalyst use; at the same time, under the action of the ash cleaner, the combination of blowing and vibration can be achieved, further improving the effect of the ash cleaner in the cleaning process.

[0033] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. An internal structure of an SCR reactor, characterized by: include A main frame (1), wherein at least one partition frame (2) is provided inside the main frame (1); two partition frames (2) are provided to divide the main frame (1) into three installation spaces (101); A unit catalyst (3) is slidably arranged in the installation space (101); The unit catalytic component (3) comprises a main body (30), which is slidably arranged inside the main frame (1); an integrated plate (32) is fixedly arranged in the middle of the main body (30), and a catalyst layer (33) is fixedly arranged on the integrated plate (32).

2. The internal structure of an SCR reactor according to claim 1, characterized in that: The main frame (1) comprises a bottom frame (12), wherein guide rods (11) are vertically arranged at the four corners of the bottom frame (12); and a top frame (13) is fixedly arranged at the upper end of the guide rod (11).

3. The internal structure of an SCR reactor according to claim 2, characterized in that: A first spring group (41) and a second spring group (42) are sleeved on the guide rod (11) of the installation space (101), and the main board (30) is located between the first spring group (41) and the second spring group (42).

4. An internal structure of an SCR reactor according to claim 2 or 3, characterized in that: Through holes (31) are provided at the four corners of the main board body (30), and the through holes (31) are sleeved on the guide rod (11).

5. An SCR reactor, characterized in that: The invention has the internal structure of an SCR reactor according to any one of claims 1 to 4.

6. The SCR reactor according to claim 5, characterized in that: The invention comprises a body (100), one side of which is provided with an opening (110); one side of the main frame (1) is provided with a cover plate (5) having a handle (51), the cover plate (5) being sealed and fastened at the opening (110); and a dust collector is provided in the body (100).

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