Flue filtering assembly of boiler

Abstract

The flue filter assembly comprises a filter box, an exhaust pipe is arranged above one side of the filter box, a guide pipe is arranged below one side of the filter box, the lower end of the filter box is of a V-shaped structure, the bottom of the lower end of the filter box is sealed through a cover plate, and a flow guide bin is arranged at one end of the filter box; the flow guide bin comprises an air inlet port arranged at the upper end of the flow guide bin. By arranging the filter layer and the second filter ports, fine particles in smoke can be effectively removed, so that the overall filter efficiency is improved, the influence on the environment and human health is reduced, the filter box is designed to be of a V-shaped structure, and the first filter ports and the second filter ports are formed, so that the component can be used for effectively removing the smoke while the filter efficiency is guaranteed. The resistance when the flue gas passes through is reduced, so that the high pressure drop is reduced, and the energy consumption and the operation cost of the induced draft fan are reduced.

Description

Technical Field

[0001] This utility model relates to the field of filter assembly technology, specifically to a boiler flue filter assembly. Background Technology

[0002] Boiler flue gas filtration components are devices used to purify particulate matter in boiler exhaust gas, primarily to reduce pollutant emissions and meet environmental protection requirements. These components include, but are not limited to, filter plates, dust collector bags, and cleaning devices. The combined use of these components effectively improves the cleaning efficiency of boiler flue gas and reduces environmental impact. In applications such as coal-fired boilers, these filtration components are a crucial part of the tail-end flue gas desulfurization and denitrification system, playing a significant role in achieving ultra-low emissions.

[0003] While existing boiler flue gas filtration components can significantly reduce pollutant emissions, they still have some shortcomings in actual operation. Although the filtration components can remove most particulate matter, their removal efficiency for fine particles may be insufficient. These fine particles have a significant impact on the environment and human health. High-efficiency filtration components often lead to increased resistance when flue gas passes through, i.e., high pressure drop, which increases the energy consumption of the induced draft fan and raises operating costs.

[0004] Therefore, it is necessary to invent a boiler flue filter assembly to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a boiler flue gas filter assembly to address the aforementioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a boiler flue filter assembly, including a filter box, an exhaust pipe is provided on the upper side of one side of the filter box, a duct is provided on the lower side of one side of the filter box, the lower end of the filter box has a V-shaped structure, the bottom of the lower end of the filter box is sealed by a cover plate, and a flow guide chamber is provided at one end of the filter box.

[0007] The flow guide chamber includes:

[0008] An air inlet port is located at the upper end of the flow guide chamber. Inside the flow guide chamber, below the air inlet port, is a sedimentation chamber. The air inlet port is connected to the boiler flue. A connecting pipe is installed at the top of the air inlet port and is connected to a duct. Inside the flow guide chamber, at the location of the air inlet port, is a fan.

[0009] As a preferred embodiment of this utility model, at least two No. 2 filter ports are provided on the upper side of one side of the filter box, and at least two No. 1 filter ports are provided on the lower side of one side of the filter box. The exhaust pipe is connected to at least two No. 2 filter ports.

[0010] As a preferred embodiment of this utility model, each of the No. 1 filter ports is fixedly installed with a diverter pipe, and multiple diverter pipes are connected to a connecting pipe through a conduit. The No. 1 filter port is an air inlet, and the No. 2 filter port is an air outlet.

[0011] As a preferred embodiment of this utility model, a support column is fixedly installed below the end of the connecting pipe away from the flow guide chamber, and openings are provided at both ends of the lower part of the filter box, with end caps covering both openings at the lower part of the filter box.

[0012] As a preferred embodiment of this utility model, a waste bin is provided at the bottom of the filter box, a filter layer is provided at the top of the filter box, the second filter port is located above the filter layer, and the first filter port is connected to the waste bin.

[0013] As a preferred embodiment of this utility model, the bottom of the filter box is provided with a discharge port, and the bottom of the discharge port is sealed with a cover plate. The cover plate at the bottom of the discharge port is installed and fixed by a locking structure.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. By setting up a filter layer and a second filter port, fine particles in the flue gas can be effectively removed, thereby improving the overall filtration efficiency and reducing the impact on the environment and human health. By designing the filter box into a V-shaped structure and setting up multiple first and second filter ports, this component can reduce the resistance when the flue gas passes through while ensuring filtration efficiency, thereby reducing the high pressure drop and reducing the energy consumption and operating cost of the induced draft fan.

[0016] 2. The design of the flow guide chamber helps to evenly distribute the flue gas entering the filter box, and the sedimentation chamber helps to pre-settle larger particles, reducing the burden on the filter layer. At the same time, the installation of the fan helps to regulate the airflow and further optimize the filtration effect. The discharge port at the bottom of the filter box and the locking structure of the cover plate make waste discharge more convenient. Meanwhile, the diversion pipe fixedly installed on the outside of the No. 1 filter port is also easy to clean and maintain. Moreover, the design of this filter assembly is compact and saves installation space. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments 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.

[0018] Figure 1 This is a first-view perspective perspective view of the overall structure of this utility model;

[0019] Figure 2 This is a second-view perspective perspective view of the overall structure of this utility model;

[0020] Figure 3 This is a first-view exploded view of the filter box of this utility model;

[0021] Figure 4 This is a second-view exploded view of the filter box of this utility model;

[0022] Figure 5 This is a perspective view of the flow guide chamber of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Filter box; 11. Waste bin; 12. Filter layer; 2. Flow guide bin; 21. Air inlet port; 22. Connecting pipe; 23. Sedimentation bin; 3. No. 1 filter port; 4. No. 2 filter port; 5. Support column; 6. Diverter pipe; 7. Exhaust pipe; 8. Discharge port; 9. End cap. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-5 The boiler flue gas filtration assembly shown includes a filter box 1. An exhaust pipe 7 is provided on the upper side of the filter box 1 and is connected to a second filter port 4 to effectively exhaust the filtered clean flue gas and reduce emission pollution. A duct is provided on the lower side of the filter box 1 and is connected to a connecting pipe 22 and a diversion pipe 6 to ensure uniform distribution of flue gas and reduce local pressure loss. The lower end of the filter box 1 has a V-shaped structure. The V-shaped structure at the lower end of the filter box 1 helps the particles settle under gravity and reduces the burden on the filter layer. The bottom of the lower end of the filter box 1 is sealed by a cover plate. A guide chamber 2 is provided at one end of the filter box 1. The air inlet port 21 of the guide chamber 2 is connected to the boiler flue gas to guide the flue gas into the filtration system and sedimentation chamber 23 to initially settle large particles and reduce the burden on the filter layer.

[0027] The flow guide 2 includes:

[0028] An air inlet port 21 is located at the upper end of the flow guide chamber 2. Inside the flow guide chamber 2, below the air inlet port 21, a sedimentation chamber 23 is provided. The air inlet port 21 is connected to the boiler flue. A connecting pipe 22 is installed on the top of the air inlet port 21. The connecting pipe 22 is connected to the duct. Inside the flow guide chamber 2, at the position of the air inlet port 21, a fan is installed.

[0029] Furthermore, in the above technical solution, at least two No. 2 filter ports 4 are provided on the upper side of one side of the filter box 1, and at least two No. 1 filter ports 3 are provided on the lower side of one side of the filter box 1. The exhaust pipe 7 is connected to at least two No. 2 filter ports 4.

[0030] Furthermore, in the above technical solution, a diversion pipe 6 is fixedly installed on the outside of each No. 1 filter port 3. Multiple diversion pipes 6 are connected to the connecting pipe 22 through conduits. The No. 1 filter port 3 is the air inlet, and the No. 2 filter port 4 is the air outlet. The diversion pipe 6 is fixed on the outside of each No. 1 filter port 3 to help distribute airflow and reduce the pressure loss of each filter port.

[0031] Furthermore, in the above technical solution, a support column 5 is fixedly installed below the end of the connecting pipe 22 away from the flow guide chamber 2. The fixed installation of the support column 5 increases the mechanical strength and stability of the components and the connecting pipe 22. Openings are provided at both ends of the bottom of the filter box 1, and end caps 9 are closed on both ends of the bottom of the filter box 1.

[0032] Furthermore, in the above technical solution, a waste bin 11 is provided at the bottom inside the filter box 1. The waste bin 11 is used to collect the filtered waste, which facilitates the treatment and discharge of the waste. A filter layer 12 is provided at the top inside the filter box 1. The second filter port 4 is located above the filter layer 12. The first filter port 3 is connected to the waste bin 11. The first filter port 3 serves as an air inlet, guiding the flue gas containing pollutants into the filter layer 12 inside the filter box 1. The filter layer 12 is located at the top inside the filter box 1, removing fine particulate matter and improving the overall filtration effect.

[0033] Furthermore, in the above technical solution, the bottom of the filter box 1 is provided with a discharge port 8, and the bottom of the discharge port 8 is sealed with a cover plate. The cover plate at the bottom of the discharge port 8 is installed and fixed with a locking structure. The end cover 9 covers the openings at both ends of the filter box 1 to prevent leakage of waste and particulate matter, and facilitates maintenance and cleaning. The bottom of the discharge port 8 is sealed with a cover plate and uses a locking structure to facilitate the discharge of waste, while ensuring the sealing performance and operational safety of the system.

[0034] The working process of the boiler flue filter assembly provided by this utility model is as follows:

[0035] Install the filter assembly in a suitable location in the boiler flue, ensuring a tight connection between the air inlet 21 of the guide chamber 2 and the boiler flue. Install the filter layer 12 inside the filter box 1, ensuring that the filter layer corresponds to the positions of filter port 3 and filter port 4. Install the end cap 9 of the discharge port 8 at the bottom of the filter box 1, ensuring it is secured with a locking mechanism to prevent waste leakage.

[0036] Check that all connecting pipes, conduits, connecting pipes 22, and diversion pipes 6 are secure and leak-free. Ensure that the filter layer 12 is not clogged and that the waste bin 11 is clean. Check that the fan is working properly.

[0037] The fan is started, drawing the flue gas generated by the boiler into the guide chamber 2 through the inlet port 21. Within the guide chamber 2, the flue gas first passes through the sedimentation chamber 23, where large particles settle under gravity. The pre-sedimented flue gas is then evenly distributed to the filter layer 12 of the filter box 1 via the connecting pipe 22, the duct, and the distribution pipe 6. At the filter layer 12, fine particles are filtered, and the clean flue gas is discharged through the second filter port 4.

[0038] Regularly check the filter layer 12 for blockage, and clean or replace it as necessary. When the waste bin 11 is full, open the cover of the discharge port 8 to discharge the waste, and then reseal it. Regularly check the sealing of all connecting parts and the cover to ensure the normal operation of the system.

[0039] The flue gas emitted from the boiler first enters the guide chamber 2 through the inlet port 21. Inside the guide chamber 2, large particles settle in the settling chamber 23 due to gravity. The flue gas, after initial settling, is evenly distributed to the filter layer 12 of the filter box 1 through the connecting pipe 22, the duct, and the diversion pipe 6. As the flue gas passes through the filter layer 12, fine particles are intercepted, and the clean flue gas is discharged through the second filter port 4. The filtered waste is collected in the waste bin 11 for subsequent processing. When the waste bin 11 is full, the waste is discharged through the discharge port 8.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A flue gas filtration assembly for a boiler, comprising a filter box (1), characterized in that: An exhaust pipe (7) is provided on the upper side of one side of the filter box (1), a conduit is provided on the lower side of one side of the filter box (1), the lower end of the filter box (1) has a V-shaped structure, the bottom of the lower end of the filter box (1) is sealed by a cover plate, and a flow guide chamber (2) is provided at one end of the filter box (1). The flow guide chamber (2) includes: An air inlet port (21) is located at the upper end of the flow guide chamber (2). Inside the flow guide chamber (2) and below the air inlet port (21), a sedimentation chamber (23) is provided. The air inlet port (21) is connected to the boiler flue. A connecting pipe (22) is installed on the top of the air inlet port (21). The connecting pipe (22) is connected to the duct. Inside the flow guide chamber (2) and at the position of the air inlet port (21), a fan is installed.

2. The flue gas filter assembly for a boiler according to claim 1, characterized in that: At least two No. 2 filter ports (4) are provided on the upper side of one side of the filter box (1), and at least two No. 1 filter ports (3) are provided on the lower side of one side of the filter box (1). The exhaust pipe (7) is connected to at least two No. 2 filter ports (4).

3. The flue gas filter assembly for a boiler according to claim 2, characterized in that: Each of the first filter ports (3) is fixedly installed with a diverter pipe (6). Multiple diverter pipes (6) are connected to the connecting pipe (22) through conduits. The first filter port (3) is the air inlet, and the second filter port (4) is the air outlet.

4. The flue gas filter assembly for a boiler according to claim 1, characterized in that: A support column (5) is fixedly installed below the end of the connecting pipe (22) away from the flow guide chamber (2). Openings are provided at both ends of the filter box (1) below. End caps (9) are closed at both ends of the openings of the filter box (1) below.

5. A boiler flue gas filter assembly according to claim 2, characterized in that: The filter box (1) has a waste bin (11) at the bottom inside and a filter layer (12) at the top inside. The second filter port (4) is located above the filter layer (12), and the first filter port (3) is connected to the waste bin (11).

6. The flue gas filter assembly for a boiler according to claim 1, characterized in that: The bottom of the filter box (1) is provided with a discharge port (8), and the bottom of the discharge port (8) is sealed with a cover plate. The cover plate at the bottom of the discharge port (8) is installed and fixed by a locking structure.

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