A boiler flue structure integrating waste heat recovery and dust removal

Abstract

The utility model discloses a kind of waste heat recovery and dust integrated boiler flue structure, including processing box, the side outer wall center of processing box is penetrated with air inlet pipe;By setting filter screen, the smoke dust particles mixed in gas can be filtered, the filter screen filter hole size adjacent to air inlet pipe is greater than the filter screen filter hole size of processing box inside center, by two wheel filtration processing, smoke dust particles in gas can be completely removed, by setting honeycomb activated carbon plate, water vapor mixed in gas can be absorbed, not only improve the recovery efficiency of waste heat, also reduce the work burden of labor personnel, by setting the connecting structure between L type cleaning plate and filter screen, when staff pull first frame upward, filter screen also slide upward along with, at this time, L type cleaning plate will be tightly attached to the surface of filter screen and slide downward, to remove the smoke dust particles accumulated on the surface of filter screen directly.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery equipment technology, and in particular to a boiler flue structure that integrates waste heat recovery and dust removal. Background Technology

[0002] A boiler flue is the passage through which flue gas flows from the furnace deflector to the chimney. According to the direction of flue gas flow, flues can be divided into two types: vertical flues and horizontal flues. Flues of large power plant boilers usually adopt a wall-encased structure, which is made of welded heating surface tubes and fins. Insulation material is also laid on the outside of the flue. In this case, the flue, as part of the heating surface, participates in convective heat transfer. However, small boilers have a compact structure and the heating surface is relatively concentrated. The flue is not intended to absorb heat. Therefore, it can be made of steel, brick and concrete or other materials to form an insulated flue. If necessary, an insulation layer can be added.

[0003] The following problems exist: The structure of the boiler flue can effectively recover the waste heat. However, the gases containing waste heat often contain a large number of dust particles and water vapor. These impurities will deposit and adhere to the entire surface of the boiler flue structure. This not only brings great inconvenience and heavy workload to the workers responsible for cleaning, but also the presence of these deposits will negatively affect the waste heat recovery efficiency, thereby affecting the operating efficiency of the entire system. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A boiler flue structure integrating waste heat recovery and dust removal includes a treatment box. An air inlet pipe runs through the center of one outer wall of the treatment box, and a recovery pipe runs through the center of the other outer wall of the treatment box. A first placement box runs through one end of the top of the treatment box, and a second placement box runs through the center of the treatment box. A first frame is fitted inside the first placement box, and a first filter screen is fixedly connected to the first frame. A second frame is fitted inside the second placement box, and a second filter screen is fixedly connected to the second frame. A first L-shaped cleaning plate connected to the first placement box contacts the outer wall of the first filter screen, and a second L-shaped cleaning plate connected to the second placement box contacts the outer wall of the second filter screen. During the process of the first filter screen being pulled out of the first placement box and the second filter screen being pulled out of the second placement box, the first L-shaped cleaning plate and the outer wall of the first filter screen, and the second L-shaped cleaning plate and the outer wall of the second filter screen are in a sliding fit relationship, which is used to remove the dust particles on the first filter screen and the second filter screen.

[0007] As a further description of the above technical solution: The bottom two ends of the processing box are fixedly connected to a U-shaped support frame, and a recycling box is installed inside the U-shaped support frame.

[0008] As a further description of the above technical solution: The first placement box has a first ventilation hole on one side of its outer wall and a second ventilation hole on the other side of its outer wall. The internal space of the first placement box is connected to the first ventilation hole and the second ventilation hole.

[0009] As a further description of the above technical solution: The top of the processing box has a third placement box extending through it, and the outer walls on both sides of the third placement box have fifth ventilation holes.

[0010] As a further description of the above technical solution: The inner wall of the third placement box is fitted with a third frame, and the inner wall of the third frame is fixedly connected with a honeycomb activated carbon plate.

[0011] As a further description of the above technical solution: Handle brackets are fixedly connected to the top of the first, second, and third borders.

[0012] As a further description of the above technical solution: The bottom of the processing box has multiple sets of drainage holes.

[0013] As a further description of the above technical solution: The pore size of the first filter screen is larger than that of the second filter screen.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) By setting up a filter screen, the dust particles mixed in the gas can be filtered. The filter screen adjacent to the air inlet pipe has a larger filter hole size than the filter screen at the center of the processing box. Through two rounds of filtration, the dust particles in the gas can be completely removed. By setting up a honeycomb activated carbon plate, the water vapor mixed in the gas can be absorbed, which not only improves the waste heat recovery efficiency, but also reduces the workload of workers.

[0015] (2) By setting the connection structure between the L-shaped cleaning plate and the filter screen, when the staff pulls the first frame upward, the filter screen will also slide upward. At this time, the L-shaped cleaning plate will slide close to the surface of the filter screen, thereby directly removing the dust particles accumulated on the surface of the filter screen. The second frame can be directly pulled out from the second placement box, making it convenient for the staff to replace the honeycomb activated carbon plate. Attached Figure Description

[0016] Figure 1 This is a front view of the present invention; Figure 2 This is a front sectional view of the present invention.

[0017] The correspondence between the labels and component names in the attached figures is as follows: 1. Processing box; 2. Air inlet pipe; 3. Recovery pipe; 4. U-shaped support frame; 5. Recovery box; 6. First placement box; 7. First ventilation hole; 8. Second ventilation hole; 9. First frame; 10. First filter screen; 11. First L-shaped cleaning plate; 12. Third placement box; 13. Fifth ventilation hole; 14. Third frame; 15. Honeycomb activated carbon plate; 16. Handle holder; 17. Drain hole. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0021] Reference Figure 1-2 This utility model provides a boiler flue structure integrating waste heat recovery and dust removal, including a treatment box 1. An air inlet pipe 2 passes through the center of one outer wall of the treatment box 1, and a recovery pipe 3 passes through the center of the other outer wall of the treatment box 1. A U-shaped support frame 4 is fixedly connected to both ends of the bottom of the treatment box 1. A recovery box 5 is fitted into the inner wall of the U-shaped support frame 4. By setting the recovery box 5, the cleaned-up dust particles can be recovered. The dust particles in the recovery box 5 can be uniformly processed by pulling the recovery box 5 out of the U-shaped support frame 4.

[0022] A first placement box 6 extends through the top of the processing box 1, and a second placement box extends through the center of the processing box 1. A first ventilation hole 7 is formed on one outer wall of the first placement box 6, and a second ventilation hole 8 is formed on the other outer wall of the first placement box 6. The internal spaces of the first ventilation hole 7 and the second ventilation hole 8 are interconnected with the internal space of the first placement box 6. A first frame 9 is fitted inside the first placement box 6, and a first filter screen 10 is fixedly connected to the inner wall of the first frame 9. A first L-shaped cleaning plate 11 is fixedly connected to the top of the inner wall of the first ventilation hole 7. In this embodiment, the second placement box has the same structure as the first placement box 6. A third ventilation hole is formed on one outer wall of the second placement box, and a fourth ventilation hole is formed on the other outer wall of the second placement box. The internal spaces of the third and fourth ventilation holes are interconnected with the internal space of the second placement box. A second frame is fitted inside the second placement box, and a second filter screen is fixedly connected to the inner wall of the second frame. A first L-shaped cleaning plate 11 is fixedly connected to the top of the inner wall of the first ventilation hole 7, and a second L-shaped cleaning plate is fixedly connected to the top of the inner wall of the third ventilation hole. By setting the first filter screen 10 and the second filter screen, the smoke and dust particles mixed in the gas can be filtered. It is worth noting that the filter hole size of the first filter screen 10 adjacent to the air inlet pipe 2 is larger than the filter hole size of the second filter screen at the center of the inside of the processing box 1. Through two rounds of filtration, the smoke and dust particles in the gas can be completely removed. The bottom end of the first L-shaped cleaning plate 11 is slidably connected to one side of the outer wall of the first filter screen 10, and the bottom end of the second L-shaped cleaning plate is slidably connected to one side of the outer wall of the second filter screen. By setting up connection structures between the first L-shaped cleaning plate 11 and the first filter screen 10, and between the second L-shaped cleaning plate and the second filter screen, when the worker pulls the first frame 9 upward, the first filter screen 10 will also slide upward. At this time, the first L-shaped cleaning plate 11 will slide close to the surface of the first filter screen 10, thereby directly removing the dust particles accumulated on the surface of the first filter screen 10; when the worker pulls the second frame upward, the second filter screen will also slide upward. At this time, the second L-shaped cleaning plate will slide close to the surface of the second filter screen, thereby directly removing the dust particles accumulated on the surface of the second filter screen.

[0023] The top of the treatment box 1 has a third placement box 12 extending through it. The outer walls of both sides of the third placement box 12 are provided with fifth ventilation holes 13. The internal space of the fifth ventilation holes 13 is connected to the internal space of the third placement box 12. The inner wall of the third placement box 12 is fitted with a third frame 14. The inner wall of the third frame 14 is fixedly connected with a honeycomb activated carbon plate 15. By setting the honeycomb activated carbon plate 15, the water vapor mixed in the gas can be absorbed. The third frame 14 can be directly pulled out from the third placement box 12, which is convenient for the staff to replace the honeycomb activated carbon plate 15. The top of the first frame 9 and the third frame 14 are fixedly connected with handles 16. By setting the handles 16, the staff can easily pull the first frame 9 and the second frame 14 upward. The bottom of the treatment box 1 has multiple sets of leakage holes 17. The cleaned dust particles can fall into the recycling box 5 through the leakage holes 17.

[0024] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A boiler flue structure integrating waste heat recovery and dust removal, comprising a treatment box (1), characterized in that: An air inlet pipe (2) is inserted through the center of one side of the outer wall of the processing box (1), and a recovery pipe (3) is inserted through the center of the other side of the outer wall of the processing box (1). A first placement box (6) is inserted through the top end of the processing box (1), and a second placement box is inserted through the center of the processing box (1). A first frame (9) is fitted inside the first placement box (6), and the first frame (9) is fixedly connected to the first filter screen (10). A second frame is fitted inside the second placement box, and the second frame is fixedly connected to the second filter screen. A first L-shaped cleaning plate (11) connected to the first placement box (6) contacts the outer wall of the first filter screen (10), and a second L-shaped cleaning plate connected to the second placement box contacts the outer wall of the second filter screen. During the process of the first filter screen (10) being pulled out of the first placement box (6) and the second filter screen being pulled out of the second placement box, the first L-shaped cleaning plate (11) and the outer wall of the first filter screen (10), and the second L-shaped cleaning plate and the outer wall of the second filter screen are in a sliding fit relationship, which is used to remove the dust particles on the first filter screen (10) and the second filter screen.

2. The boiler flue structure integrating waste heat recovery and dust removal according to claim 1, characterized in that: The bottom two ends of the processing box (1) are fixedly connected to a U-shaped support frame (4), and a recycling box (5) is installed inside the U-shaped support frame (4).

3. The boiler flue structure integrating waste heat recovery and dust removal according to claim 1, characterized in that: The first placement box (6) has a first ventilation hole (7) on one side of its outer wall and a second ventilation hole (8) on the other side of its outer wall. The internal space of the first placement box (6) is connected to the first ventilation hole (7) and the second ventilation hole (8).

4. The boiler flue structure integrating waste heat recovery and dust removal according to claim 1, characterized in that: The top of the processing box (1) is connected to a third placement box (12), and the outer walls on both sides of the third placement box (12) are provided with fifth ventilation holes (13).

5. The boiler flue structure integrating waste heat recovery and dust removal according to claim 4, characterized in that: The inner wall of the third placement box (12) is fitted with a third frame (14), and the inner wall of the third frame (14) is fixedly connected with a honeycomb activated carbon plate (15).

6. A boiler flue structure integrating waste heat recovery and dust removal according to claim 1 or 5, characterized in that: The top of the first frame (9), the second frame, and the third frame (14) are all fixedly connected with handles (16).

7. The boiler flue structure integrating waste heat recovery and dust removal according to claim 1, characterized in that: The bottom of the processing box (1) has multiple sets of leakage holes (17).

8. The boiler flue structure integrating waste heat recovery and dust removal according to claim 1, characterized in that: The pore size of the first filter screen (10) is larger than that of the second filter screen.

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