Waste gas treatment device for carbon emission reduction system of thermal power plant

Abstract

The utility model discloses a waste gas treatment device for a carbon emission reduction system of a thermal power plant, which relates to the technical field of energy-saving and environment-friendly equipment and comprises a gas inlet pipeline and a support frame, sealing covers are arranged at two ends of the gas inlet pipeline, a communicating pipe is arranged in the middle of the outer side of each sealing cover, and a centrifugal fan is arranged in the gas inlet pipeline. A guide plate is arranged on the inner wall, close to the lower portion of the centrifugal fan, of the air inlet pipeline, an opening is formed in the side wall of the lower portion of the air inlet pipeline, a sealing door is arranged at the opening and rotatably installed on the portion, on one side of the opening, of the air inlet pipeline, and a first filter plate is arranged on the inner wall of the sealing door; compared with the prior art, the waste gas impurity removal device has the advantages that the chance and probability that impurities are in contact with the first filter plate are greatly improved through the centrifugal fan, the guide plate and the first filter plate, the waste gas impurity removal effect is effectively improved, the sealing performance of the whole device is improved through the sealing door and the first filter plate, and the service life of the device is prolonged. And adverse effects of waste gas leakage on environment and equipment operation are avoided.

Description

Technical Field

[0001] This utility model relates to the field of energy-saving and environmental protection equipment technology, specifically a waste gas treatment device for a carbon emission reduction system in a thermal power plant. Background Technology

[0002] When thermal power plants emit flue gas containing carbon dioxide, they need to treat the dust and impurities in the flue gas to prevent the dust and impurities from being directly emitted into the atmosphere and causing pollution.

[0003] Patent application CN214486161U discloses a waste gas treatment device for thermal power plants, belonging to the technical field of waste gas treatment equipment. The device includes a filter tube with filter ports at both ends and a through-hole at the right end. A placement plate is slidably connected to the through-hole, and a strip-shaped opening is formed at the top of the placement plate. Fixing blocks are fixedly connected to the inner walls of the filter tube at both ends, with grooves formed at one end of each block. The placement plate is located within and slidably connected to the grooves. An auxiliary positioning mechanism is fixedly installed inside the filter tube. A square groove is formed at the top of the placement plate, located to the left of the strip-shaped opening, and a filter screen is fixedly installed within the square groove. A rotating shaft is fixedly connected to the outer end of the filter tube. This mechanism facilitates the installation and removal of the filter screen, thereby effectively improving work efficiency and ensuring the waste gas treatment effect of the filter screen.

[0004] However, its structure is too simple. When the exhaust gas enters the pipe, it is easy to form a direct current pattern, which results in a short residence time in the pipe and poor exhaust gas removal effect. Utility Model Content

[0005] In order to overcome the shortcomings of existing technologies where waste gas tends to form a direct current pattern after entering the pipeline, resulting in a short residence time and poor impurity removal effect, this utility model provides a waste gas treatment device for a carbon emission reduction system in a thermal power plant.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a waste gas treatment device for a carbon emission reduction system in a thermal power plant, including an air inlet pipe and a support frame. The air inlet pipe is installed on the support frame, and both ends of the air inlet pipe are provided with caps. A connecting pipe is provided in the middle of the outer side of the caps. A centrifugal fan is provided on the inner wall of the air inlet pipe near the upper opening. A multi-stage guide plate is provided on the inner wall of the air inlet pipe near the lower part of the centrifugal fan. The multi-stage guide plate is arranged in a spiral shape. An opening is provided on the lower side wall of the air inlet pipe. A sealing door is provided at the opening. The sealing door is rotatably connected to the air inlet pipe on one side of the opening. A first filter plate is detachably connected to the inner wall of the sealing door.

[0007] As a further improvement of this utility model, the cover is threadedly connected to the air inlet pipe, and a second filter plate that fits against the inner wall of the cover is snapped into the cover. The end of the air inlet pipe that is close to the centrifugal fan is the air inlet, and the end of the air inlet pipe that is far away from the centrifugal fan is the air outlet.

[0008] As a further improvement of this utility model, the two ends of the guide plate are welded to the inner wall of the air intake pipe.

[0009] As a further improvement of this utility model, there are two openings, each with a corresponding sealing door. The movable ends of the two sealing doors can be connected by bolt pairs, and a sealing strip is provided at the contact part between the sealing door and the opening.

[0010] As a further improvement of this utility model, a mounting hole is provided in the middle of the sealing door, and a mounting block corresponding to the mounting hole is provided in the middle of the first filter plate.

[0011] As a further improvement of this utility model, there are two first filter plates, and the two first filter plates can respectively fit against the inner wall of the corresponding sealing door, and the mounting block of the first filter plate is engaged with the mounting hole of the sealing door.

[0012] As a further improvement of this utility model, a dovetail groove is provided on one side of the first filter plate, and a protrusion corresponding to the dovetail groove is provided on the other side of the first filter plate. The dovetail groove and protrusion on the side of one first filter plate are respectively engaged with the protrusion and dovetail groove on the side of another first filter plate.

[0013] As a further improvement of this utility model, a clamp is provided on the air intake pipe.

[0014] As can be seen from the above technical solutions, the beneficial effects of this utility model are:

[0015] 1. This utility model, through the setting of a centrifugal fan, guide plate, and first filter plate, greatly increases the opportunity and probability of impurities coming into contact with the first filter plate, thereby effectively improving the effect of removing impurities from the exhaust gas. When the exhaust gas enters the intake pipe, under the action of the centrifugal fan, the exhaust gas is given centrifugal force. Since the direction of the centrifugal force is towards the inner wall of the intake pipe, the impurities and gases in the exhaust gas begin to move towards the inner wall of the pipe. At this time, the spiral arrangement of the multi-stage guide plate guides the exhaust gas to flow along the spiral path. This spiral flow mode further strengthens the centrifugal tendency of the exhaust gas, so that the impurities in the exhaust gas are more fully thrown towards the first filter plate, thereby improving the impurity removal effect.

[0016] 2. This utility model features a sealed door and a second filter plate. The sealed door is rotatably connected to the edge of the open side of the air intake pipe. This design allows the sealed door to be easily opened and closed. When cleaning or maintenance of the second filter plate inside the air intake pipe is required, simply open the sealed door to directly access the second filter plate. Simultaneously, the second filter plate is installed on the inner wall of the sealed door. When the sealed door is closed, the second filter plate fits tightly against the inner wall of the air intake pipe. This tight fit prevents exhaust gas from leaking through the gaps between the second filter plate and the pipe's inner wall. Furthermore, a sealing strip at the contact point between the sealed door and the open side further enhances the sealing effect. When the sealed door is closed, the sealing strip is compressed, filling the tiny gaps between the sealed door and the open side, thus preventing exhaust gas leakage from these areas. In this way, the overall sealing performance of the device is significantly improved, ensuring that exhaust gas can only flow within the air intake pipe along a predetermined path, avoiding adverse effects of exhaust gas leakage on the environment and equipment operation. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a waste gas treatment device for a carbon emission reduction system in a thermal power plant according to the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the air intake pipe and sealing door of this utility model when they are open.

[0020] Figure 3 This is a cross-sectional view of a waste gas treatment device for a carbon emission reduction system in a thermal power plant, according to the present invention.

[0021] Figure 4 This is an exploded schematic diagram of the air intake pipe of this utility model.

[0022] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0023] In the diagram: 1. Inlet pipe; 101. Opening; 2. Support frame; 3. Cover; 31. Connecting pipe; 4. Centrifugal fan; 5. Guide plate; 6. Sealing door; 61. Mounting hole; 62. Bolt pair; 7. First filter plate; 71. Mounting block; 72. Dovetail groove; 73. Protrusion; 8. Second filter plate; 9. Clamp. Detailed Implementation

[0024] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0025] Reference Figure 1 This utility model discloses a waste gas treatment device for a carbon emission reduction system in a thermal power plant, including an air inlet pipe 1 and a support frame 2. The air inlet pipe 1 is installed on the support frame 2, and a clamp 9 is provided on the air inlet pipe 1. Both ends of the air inlet pipe 1 are provided with caps 3, and a connecting pipe 31 is provided in the middle of the outer side of the caps 3.

[0026] Reference Figure 3 and Figure 4 A centrifugal fan 4 is installed on the inner wall of the intake pipe 1 near the upper opening. When the exhaust gas enters the intake pipe 1, it is subjected to centrifugal force by the centrifugal fan 4. Since the direction of the centrifugal force is towards the inner wall of the intake pipe 1, the impurities and gases in the exhaust gas begin to move towards the inner wall of the pipe. A guide plate 5 is installed on the inner wall of the intake pipe 1 near the lower part of the centrifugal fan 4. The multi-stage guide plate 5 is arranged in a spiral shape. The multi-stage guide plate 5 strengthens the centrifugal tendency of the exhaust gas, so that the impurities in the exhaust gas are more fully thrown towards the inner wall of the pipe. An opening 101 is opened on the lower side wall of the intake pipe 1. One end of the opening 101 is close to the end of the guide plate 5, and the other end of the opening 101 is close to the end of the intake pipe 1 away from the centrifugal fan 4. A sealing door 6 is provided at the opening 101.

[0027] Reference Figure 2 and Figure 4 The sealing door 6 is rotatably connected to the air intake pipe 1 on one side of the open 101. This design allows the sealing door 6 to be easily opened and closed. The inner wall of the sealing door 6 is detachably connected to the first filter plate 7. As the exhaust gas continues to flow under the combined action of the centrifugal fan 4 and the guide plate 5, impurities gradually approach the inner wall of the pipe under the drive of centrifugal force. Since the first filter plate 7 is installed on the inner wall of the sealing door 6, the impurities will be intercepted and adsorbed by the first filter plate 7 as they are thrown towards the inner wall of the pipe, thereby achieving the removal of impurities in the exhaust gas.

[0028] Reference Figure 4The cover 3 is installed on the air inlet pipe 1 by means of threaded connection, and a second filter plate 8 is snapped into the cover 3 and fits against its inner wall. The end of the air inlet pipe 1 close to the centrifugal fan 4 is the air inlet, and the end of the air inlet pipe 1 away from the centrifugal fan 4 is the air outlet. The guide plate 5 has a spiral structure, and both ends of the guide plate 5 are welded to the inner wall of the air inlet pipe 1. The connecting pipe 31 of the air outlet cover 3 is used to connect the air inlet pipe 1 to the purification equipment. The guide plate 5 has a spiral shape and is welded to the inner wall of the air inlet pipe 1. Its special spiral structure guides the exhaust gas to flow along the spiral path. This spiral flow method further strengthens the centrifugal tendency of the exhaust gas.

[0029] Reference Figure 2 , Figure 3 and Figure 4 There are two openings 101, and each opening 101 is provided with a corresponding sealing door 6. The movable ends of the two sealing doors 6 are connected by bolt pairs 62, and the contact parts between the sealing door 6 and the opening 101 are provided with sealing strips. The sealing door 6 has a mounting hole 61 in the middle. The first filter plate 7 has a mounting block 71 in the middle corresponding to the mounting hole 61. There are two first filter plates 7, and both first filter plates 7 are attached to the inner wall of the corresponding sealing door 6, and the two first filter plates are connected by a snap-fit ​​method.

[0030] Reference Figure 5 The first filter plate 7 has a dovetail groove 72 on one side and a protrusion 73 corresponding to the dovetail groove 72 on the other side. The dovetail groove 72 and protrusion 73 on one side of the first filter plate 7 respectively engage with the protrusion 73 and dovetail groove 72 on the other side of the filter plate to enhance the sealing performance.

[0031] When cleaning or maintenance of the filter plate inside the intake duct 1 is required, simply open the sealing door 6 to directly access the filter plate. For the first filter plate 7, since it is detachably connected to the inner wall of the sealing door 6, workers can easily remove it for cleaning or replacement. The filter plate is installed on the inner wall of the sealing door 6. When the sealing door 6 is closed, the filter plate will fit tightly against the inner wall of the intake duct 1. On one hand, this tight fit prevents exhaust gas from leaking through the gaps between the filter plate and the inner wall of the duct. On the other hand, a sealing strip is provided at the contact point between the sealing door 6 and the opening 101, further enhancing the sealing effect. When the sealing door 6 is closed, the sealing strip is compressed, filling the tiny gaps between the sealing door 6 and the opening 101, thereby preventing exhaust gas from leaking from these areas. In this way, the sealing performance of the entire device is significantly improved, ensuring that exhaust gas can only flow through the intake duct 1 along a predetermined path, undergoing treatment through the filter plate and other components, thus avoiding the adverse effects of exhaust gas leakage on the environment and equipment operation.

[0032] First, the exhaust gas enters through the inlet of the intake pipe 1. At this time, the centrifugal fan 4, located on the inner wall of the intake pipe 1 near the inlet, starts working. The centrifugal fan 4 rotates at high speed, giving the incoming exhaust gas centrifugal force. Under the action of centrifugal force, the exhaust gas is thrown towards the inner wall of the intake pipe 1. After the exhaust gas comes into contact with the guide plate 5, the spiral structure of the guide plate 5 guides the exhaust gas to flow along the spiral path, further strengthening the centrifugal tendency of the exhaust gas. Second, during the flow of the exhaust gas, the impurities thrown towards the inner wall of the pipe by the centrifugal force and the guide plate 5 are intercepted and adsorbed by the first filter plate 7 when they approach the opening 101. The exhaust gas, after preliminary impurity removal, continues to flow in the intake pipe 1 and finally reaches the end outlet of the intake pipe 1. Finally, before leaving the intake pipe 1, the exhaust gas is filtered again by the second filter plate 8 at the end outlet. The second filter plate 8 further removes the residual small impurities in the exhaust gas, improves the purity of the exhaust gas, and provides better intake conditions for the subsequent carbon emission reduction treatment. At this point, the entire process is completed.

[0033] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship 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 limiting the scope of protection of this utility model.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waste gas treatment device for a carbon emission reduction system in a thermal power plant, comprising an inlet pipe (1) and a support frame (2), wherein the inlet pipe (1) is mounted on the support frame (2), characterized in that: Both ends of the air intake pipe (1) are provided with caps (3), and a connecting pipe (31) is provided in the middle of the outer side of the caps (3). A centrifugal fan (4) is provided on the inner wall of the air intake pipe (1) near the upper opening. A multi-stage guide plate (5) is provided on the inner wall of the air intake pipe (1) near the lower part of the centrifugal fan (4). The multi-stage guide plate (5) is arranged in a spiral shape. An opening (101) is provided on the lower side wall of the air intake pipe (1). A sealing door (6) is provided at the opening (101). The sealing door (6) is rotatably connected to the air intake pipe (1) on one side of the opening (101). A first filter plate (7) is detachably connected to the inner wall of the sealing door (6).

2. The waste gas treatment device for a carbon emission reduction system in a thermal power plant according to claim 1, characterized in that: The cover (3) is threaded onto the air inlet pipe (1), and the cover (3) is fitted with a second filter plate (8) that fits against its inner wall. The end of the air inlet pipe (1) that is close to the centrifugal fan (4) is the air inlet, and the end of the air inlet pipe (1) that is far away from the centrifugal fan (4) is the air outlet.

3. The waste gas treatment device for a carbon emission reduction system in a thermal power plant according to claim 1, characterized in that: The two ends of the guide plate (5) are welded to the inner wall of the air intake pipe (1).

4. The waste gas treatment device for a carbon emission reduction system in a thermal power plant according to claim 1, characterized in that: There are two openings (101), and each opening (101) is provided with a corresponding sealing door (6). The movable ends of the two sealing doors (6) can be connected by bolt pairs (62), and the contact parts between the sealing door (6) and the opening (101) are provided with sealing strips.

5. The waste gas treatment device for a carbon emission reduction system in a thermal power plant according to claim 4, characterized in that: The sealing door (6) has an installation hole (61) in the middle, and the first filter plate (7) has an installation block (71) in the middle corresponding to the installation hole (61).

6. The waste gas treatment device for a carbon emission reduction system in a thermal power plant according to claim 5, characterized in that: There are two first filter plates (7), and the two first filter plates (7) can respectively fit into the inner wall of the corresponding sealing door (6). The mounting block (71) of the first filter plate is engaged with the mounting hole (61) of the sealing door.

7. The waste gas treatment device for a carbon emission reduction system in a thermal power plant according to claim 6, characterized in that: A dovetail groove (72) is provided on one side of the first filter plate (7), and a protrusion (73) corresponding to the dovetail groove (72) is provided on the other side of the first filter plate (7). The dovetail groove (72) and protrusion (73) on the side of one first filter plate (7) respectively engage with the protrusion (73) and dovetail groove (72) on the side of another first filter plate (7).

8. The waste gas treatment device for a carbon emission reduction system in a thermal power plant according to claim 1, characterized in that: The intake pipe (1) is equipped with a clamp (9).

Images