Low-resistance large-flux denitration catalytic device

Abstract

The utility model relates to the technical field of waste gas denitration equipment, and discloses a low-resistance large-flux denitration catalytic device which comprises a mounting frame, a same mounting plate is slidably connected between the inner walls of the two sides of the mounting frame, and a same connecting frame is fixedly connected between the inner wall of the top and the inner wall of the bottom of the mounting frame. Four sets of connecting plates are symmetrically and fixedly connected to the inner side of the mounting plate, the opposite sides of the two connecting plates in each set are rotationally connected with the same damping rotating shaft, the outer wall of each damping rotating shaft is fixedly sleeved with a connecting block, and one side of each connecting block is fixedly connected with a connecting frame. The device disclosed by the utility model is simple to use, the speed of the flowing-out air flow is controlled by rotating the driving screw rod to adjust the rear opening angles of the plurality of connecting frames, so that the air flow can stay for a certain time in the mounting frame, and the denitration catalysis is easier to carry out, and the front opening angles of the plurality of connecting frames are designed to be wider; this can increase the amount of airflow ingress and reduce resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas denitration equipment, in particular to a low-resistance and large-flux denitration catalytic device. Background Technique

[0002] Denitration catalysis is mainly used in the catalysts of power plant denitration systems. In the SCR reaction, this can promote the selective chemical reaction of the reducing agent with nitrogen oxides in the flue gas at a certain temperature to achieve the effect.

[0003] In the existing denitration catalytic device, catalyst modules are arranged in the flue to purify the gas. The disadvantages are as follows: the catalyst modules are arranged in a straight line, with a narrow width and the gas can only pass through them, which results in a smaller flow area. Although the gas flow rate is fast, the resistance will also increase accordingly. Therefore, those skilled in the art have provided a low-resistance and large-flux denitration catalytic device to solve the problems raised in the above background technique. Content of the Utility Model

[0004] The purpose of the utility model is to provide a low-resistance and large-flux denitration catalytic device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A low-resistance and large-flux denitration catalytic device, including a mounting frame. A same mounting plate is slidably connected between the inner walls on both sides of the mounting frame. A same connecting frame is fixedly connected between the inner wall at the top and the inner wall at the bottom of the mounting frame. Four groups of connecting plates are symmetrically and fixedly connected to the inner side of the mounting plate. And a same damping rotating shaft is rotatably connected to the opposite sides of each group of two connecting plates. A connecting block is fixedly sleeved on the outer wall of the damping rotating shaft. And a connecting frame is fixedly connected to one side of the connecting block. A driving screw is rotatably connected to one side of the middle connecting frame. And the driving screw threadedly penetrates the mounting plate. Two air inlets are symmetrically formed in one side of the mounting plate. A plurality of air outlets are formed in one side of the mounting frame away from the driving screw. And a plurality of catalyst modules are arranged on both sides of the connecting frame.

[0006] As a further scheme of the utility model: A plurality of support frames are fixedly connected between the inner wall at the top and the inner wall at the bottom of the mounting frame. The driving screw is located behind the support frames.

[0007] As a further scheme of the utility model: A plurality of the air outlets are located behind the connecting frames on both sides. And the connecting frames on both sides are arranged in a triangular layout.

[0008] As a further scheme of the utility model: An opening is formed in one side of the mounting frame away from the air outlets. A plurality of the connecting frames are located behind the opening.

[0009] As a further solution of the present invention: the rear angles of the multiple connecting frames on both sides are smaller than the front angles, and the connecting frame in the middle is arranged vertically.

[0010] As a further solution of the present invention: the plurality of catalyst modules are arranged in a rectangular shape, and a screw hole is provided through one side of the mounting plate.

[0011] As a further solution of the present invention: the top and bottom of the connecting frame fit with the top inner wall and the bottom inner wall of the mounting frame, and the sizes of the multiple connecting frames are consistent.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] Rotating the drive screw drives the mounting plate toward the exhaust hole to push multiple connecting frames on both sides. The pushed connecting frames will gradually tilt inward. At this time, the connecting frames can be rotated through the connecting blocks and the damping shaft. At this time, the rear opening angles of the multiple connecting frames will gradually move inward and generate friction with the inner wall of the mounting frame. At this time, the airflow circulating at the rear will slow down, which can control the circulation speed of the airflow.

[0014] The utility model is simple to use. The speed of the outflowing airflow is controlled by rotating the driving screw to adjust the rear opening angles of the multiple connecting frames, which can make the airflow stay in the installation frame for a certain period of time, making it easier to carry out denitrification catalysis. The front opening angles of the multiple connecting frames are designed to be wider, which can increase the amount of airflow entering and reduce resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall three-dimensional schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional schematic diagram of the vent hole in the utility model;

[0017] Figure 3 It is a three-dimensional schematic diagram of the mounting plate in the present utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of the split installation plate in the present invention.

[0019] In the figure: 1. Mounting frame; 2. Support frame; 3. Connecting frame; 4. Drive screw; 5. Mounting plate; 6. Connecting block; 7. Exhaust hole; 8. Catalyst module; 9. Damping shaft; 10. Air inlet; 11. Screw hole; 12. Connecting plate. DETAILED DESCRIPTION

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 to 4 , in the embodiment of the present utility model, a low-resistance large-flux denitration catalytic device includes a mounting frame 1. A same mounting plate 5 is slidably connected between the inner walls on both sides of the mounting frame 1. A same connecting frame 3 is fixedly connected between the top inner wall and the bottom inner wall of the mounting frame 1. Four groups of connecting plates 12 are symmetrically and fixedly connected to the inner side of the mounting plate 5. And a same damping rotating shaft 9 is rotatably connected to the opposite sides of each group of two connecting plates 12. A connecting block 6 is fixedly sleeved on the outer wall of the damping rotating shaft 9. And one side of the connecting block 6 is fixedly connected to the connecting frame 3. One side of the middle connecting frame 3 is rotatably connected to a driving screw 4. And the driving screw 4 threadedly penetrates through the mounting plate 5. Two air inlets 10 are symmetrically opened on one side of the mounting plate 5. A plurality of exhaust holes 7 are opened on one side of the mounting frame 1 away from the driving screw 4. And a plurality of catalyst modules 8 are arranged on both sides of the connecting frame 3. Rotating the driving screw 4 to drive the mounting plate 5 to approach the exhaust holes 7 can push the plurality of connecting frames 3 on both sides. The pushed plurality of connecting frames 3 will gradually incline inward. At this time, the connecting frame 3 can rotate with the damping rotating shaft 9 through the connecting block 6. At this time, the rear opening angles of the plurality of connecting frames 3 will gradually approach each other inward.

[0022] In this embodiment, a plurality of support frames 2 are fixedly connected between the top inner wall and the bottom inner wall of the mounting frame 1. The driving screw 4 is located behind the support frames 2.

[0023] In this embodiment, the plurality of exhaust holes 7 are located behind the plurality of connecting frames 3 on both sides, and the plurality of connecting frames 3 on both sides are arranged in a triangular arrangement.

[0024] In this embodiment, an opening is opened on one side of the mounting frame 1 away from the exhaust holes 7. The plurality of connecting frames 3 are located behind the opening.

[0025] In this embodiment, the rear angle of the plurality of connecting frames 3 on both sides is smaller than the front angle, and the middle connecting frame 3 is vertically arranged.

[0026] In this embodiment, the plurality of catalyst modules 8 are arranged in a rectangular arrangement. A screw hole 11 is formed through one side of the mounting plate 5.

[0027] In this embodiment, the top and bottom of the connecting frame 3 are attached to the top inner wall and the bottom inner wall of the mounting frame 1, and the sizes of the plurality of connecting frames 3 are the same.

[0028] The working principle of the present invention is: rotating the driving screw 4 drives the mounting plate 5 to move toward the exhaust hole 7 to push the multiple connecting frames 3 on both sides. The pushed multiple connecting frames 3 will gradually tilt inward. At this time, the connecting frames 3 can be rotated through the connecting block 6 and the damping shaft 9. At this time, the rear opening angles of the multiple connecting frames 3 will gradually move inward and generate friction with the inner wall of the mounting frame 1. At this time, the air flow circulating at the rear will slow down, which can control the circulation speed of the air flow. The exhaust hole 7 at the rear is used for outflow of air, and the air inlet 10 in the front and the opening of the mounting frame 1 are used for inflow of air. The multiple catalyst modules 8 installed on the connecting frame 3 can be used for denitrification catalysis.

[0029] 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. Low-resistance and high-throughput denitration catalytic device, including a mounting rack (1), characterized in that: A mounting plate (5) is slidably connected between the inner walls on both sides of the mounting frame (1). A connecting frame (3) is fixedly connected between the top inner wall and the bottom inner wall of the mounting frame (1). Four groups of connecting plates (12) are symmetrically and fixedly connected to the inner side of the mounting plate (5). And a damping rotating shaft (9) is rotatably connected to the opposite sides of each group of two connecting plates (12). A connecting block (6) is fixedly sleeved on the outer wall of the damping rotating shaft (9). And a connecting frame (3) is fixedly connected to one side of the connecting block (6). A driving screw rod (4) is rotatably connected to one side of the middle connecting frame (3). And the driving screw rod (4) threadedly penetrates through the mounting plate (5). Two air inlet holes (10) are symmetrically formed in one side of the mounting plate (5). A plurality of exhaust holes (7) are formed in one side of the mounting frame (1) away from the driving screw rod (4). And a plurality of catalyst modules (8) are arranged on both sides of the connecting frame (3).

2. The low-resistance and high-flux denitration catalytic device according to claim 1, wherein: A plurality of support frames (2) are fixedly connected between the top inner wall and the bottom inner wall of the mounting frame (1). The driving screw rod (4) is located behind the support frames (2).

3. The low-resistance large-flux denitration catalytic device according to claim 1, wherein: The plurality of exhaust holes (7) are located behind the plurality of connecting frames (3) on both sides. And the plurality of connecting frames (3) on both sides are arranged in a triangular pattern.

4. The low-resistance and high-throughput denitration catalytic device according to claim 1, wherein: An opening is formed in one side of the mounting frame (1) away from the exhaust holes (7). The plurality of connecting frames (3) are located behind the opening.

5. The low-resistance and high-throughput denitration catalytic device according to claim 1, wherein: The angle behind the plurality of connecting frames (3) on both sides is smaller than the angle in front. And the middle connecting frame (3) is vertically arranged.

6. The low-resistance large-flux denitration catalytic device according to claim 1, wherein: The plurality of catalyst modules (8) are arranged in a rectangular pattern. A screw hole (11) is formed through one side of the mounting plate (5).

7. The low-resistance high-flux denitration catalytic device according to claim 1, characterized in that: The top and bottom of the connecting frame (3) are in contact with the top inner wall and the bottom inner wall of the mounting frame (1). The sizes of the plurality of connecting frames (3) are the same.

Images