Flue for boiler flue gas heat energy utilization

Abstract

The utility model relates to the technical field of boilers for chemical industry, and discloses a flue for boiler flue gas heat energy utilization, which comprises a boiler body, a flue gas pipe penetrates through and is fixedly connected with the right side of the boiler body, a heat energy utilization component is arranged outside the flue gas pipe, and a fixed frame is fixedly connected with the tail end of the right side of the flue gas pipe. A mounting groove is formed in the fixing frame, a fixing frame is slidably connected into the mounting groove, a filter screen is fixedly connected into the fixing frame, insertion holes are formed in the two sides of the fixing frame, through holes are formed in the two sides of the fixing frame in a penetrating mode, and fixing shells are fixedly connected to the outer portions of the two sides of the fixing frame. Telescopic grooves are formed in the opposite sides of the two fixing shells in a penetrating mode. According to the filter, the fixing shell, the pull rod, the limiting column, the rotating plate, the inserting hole, the filter screen, the fixing frame, the fixing frame and the first spring are matched to work, so that the fixing frame and the filter screen can be mounted, and are also convenient to dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers for chemical industry, in particular to a flue used for utilizing the thermal energy of boiler flue gas. Background Art

[0002] Chemical companies often need to use boilers to provide high-temperature hot water or for other purposes when producing chemical products. When companies use boilers, the exhaust gas often contains a large amount of heat energy, resulting in serious waste of resources.

[0003] After searching, the existing Chinese patent announcement number is: CN209877352U, which provides a boiler waste heat utilization processing device. This patent is equipped with a waste heat utilization device. When the flue gas is discharged from the flue pipe, it directly enters the flue pipe from the left air cavity. The water in the water cavity can be heated through the flue pipe, thereby effectively reducing the thermal energy of the flue gas and reducing resource waste. After that, the flue gas enters the collecting box through the pipeline from the right air cavity. The gas in the pipeline can be cooled and liquefied through the cooling chamber and then collected in the collecting box. Part of the flue gas is discharged from the flue outlet through the filter, which effectively reduces the concentration of pollutants in the exhausted flue gas. It has the advantages of low resource waste and less pollution, and meets the requirements of sustainable development of the enterprise.

[0004] Although the above patent effectively reduces the concentration of pollutants in the exhaust flue gas, has the advantages of low resource waste and less pollution, and meets the requirements of sustainable development of the enterprise, the above-mentioned boiler waste heat utilization and treatment device still has the following problems: it is inconvenient to disassemble and replace the filter.

[0005] In view of the above problems, a flue for utilizing the thermal energy of boiler flue gas is proposed. Utility Model Content

[0006] The utility model aims to provide a flue for utilizing the thermal energy of boiler flue gas, which solves the problem in the background technology that it is inconvenient to disassemble and replace the filter screen.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flue for utilizing thermal energy of boiler flue gas, comprising a furnace body, a flue pipe penetrating and fixedly connected to the right side of the furnace body, a thermal energy utilization component being arranged on the outside of the flue pipe, a fixed frame being fixedly connected to the right end of the flue pipe, a mounting groove being arranged in the fixed frame, a fixed frame being slidably connected in the mounting groove, a filter being fixedly connected in the fixed frame, jacks being arranged on both sides of the fixed frame, through holes being penetrating and arranged on both sides of the fixed frame, fixed shells being fixedly connected to the outside of both sides of the fixed frame, telescopic grooves being penetrating and arranged on opposite sides of the two fixed shells, a pull rod being penetrating and slidably connected in the telescopic groove, an inward end of the pull rod being fixedly connected to a limiting column, a rotating plate being arranged on the outside of the fixed shell, a through groove being arranged in the rotating plate, a rotating shaft being rotatably connected in the through groove.

[0008] By adopting the above technical solution, the fixing frame and the filter screen can be installed by inserting the limiting column through the through hole into the insertion hole, and it is also convenient to disassemble.

[0009] As a further description of the above technical solution: the heat energy utilization component includes a water tank, which is arranged outside the flue gas pipe, with a water inlet pipe fixedly connected to the top of the water tank, a water outlet pipe passing through and fixedly connected to the front side of the water tank, and a valve arranged outside the water outlet pipe.

[0010] By adopting the above technical solution, the flue gas pipe in the water tank is U-shaped, which can increase the contact area with the water in the water tank. The heat energy utilization component can heat the water in the water tank through the flue gas pipe to improve the utilization rate.

[0011] As a further description of the above technical solution: a uniformly distributed first spring is fixedly connected in the installation groove, and the first spring is arranged at the bottom of the fixing frame.

[0012] By adopting the above technical solution, the fixing bracket can be easily removed from the installation groove by resetting the compressed first spring.

[0013] As a further description of the above technical solution: the outside of the rotating shaft is rotatably connected to the pull rod.

[0014] By adopting the above technical solution, it is convenient for the rotating plate to drive the pull rod to move through the rotating shaft.

[0015] As a further description of the above technical solution: a second spring is sleeved on the outside of the pull rod, and the second spring is arranged in the telescopic groove.

[0016] By adopting the above technical solution, the second spring is reset to drive the limiting column to be inserted into the insertion hole.

[0017] As a further description of the above technical solution: the limiting column is arranged in the through hole, and the outside of the limiting column is slidably connected to the inner wall of the through hole.

[0018] By adopting the above technical solution, it is convenient for the limiting column to slide in the through hole.

[0019] As a further description of the above technical solution: a handle is fixedly connected to the top of the fixing frame.

[0020] By adopting the above technical solution, the fixing frame and the filter screen can be conveniently taken out through the handle.

[0021] As a further description of the above technical solution: two support frames are fixedly connected to the bottom of the water tank.

[0022] By adopting the above technical solution, the support frame can support the water tank.

[0023] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0024] The utility model provides a flue for utilizing thermal energy of boiler flue gas, in which a fixed shell, a telescopic slot, a pull rod, a second spring, a limiting column, a rotating plate, a socket, a filter screen, a fixing frame, a fixing frame and a first spring cooperate with each other, and the filter screen can filter the flue gas, and the fixing frame and the filter screen can be installed by inserting the limiting column through the through hole into the socket, and it is also convenient to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the water storage tank of the utility model;

[0027] Figure 3 It is an exploded schematic diagram of the fixed frame structure of the utility model;

[0028] Figure 4 It is a schematic diagram of the internal structure of the fixed shell of the utility model.

[0029] In the figure: 1. furnace body; 2. flue gas pipe; 3. pull rod; 4. through groove; 5. water inlet pipe; 6. water outlet pipe; 7. support frame; 8. valve; 9. water storage tank; 10. fixing frame; 11. fixing frame; 12. first spring; 13. mounting groove; 14. filter screen; 15. jack; 16. through hole; 17. fixing shell; 18. telescopic groove; 19. limit column; 20. rotating plate; 21. rotating shaft; 22. second spring; 23. handle. DETAILED DESCRIPTION

[0030] The following will refer to the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In order to further understand the content of the utility model, the utility model is described in detail with reference to the accompanying drawings.

[0032] Reference Figure 1 and Figure 3 The utility model is a flue for utilizing the heat energy of boiler flue gas, including a furnace body 1, a flue pipe 2 is passed through and fixedly connected on the right side of the furnace body 1, and is used to transport the flue gas. A heat energy utilization component is arranged on the outside of the flue pipe 2, and a fixing frame 10 is fixedly connected to the right end of the flue pipe 2. The fixing frame 10 is arranged at the exhaust port at the end of the flue pipe 2. A mounting groove 13 is provided in the fixing frame 10 to facilitate the installation of a fixing frame 11. The fixing frame 11 is slidably connected in the mounting groove 13. A filter screen 14 is fixedly connected in the fixing frame 11, and the flue gas is filtered by the filter screen 14. Both sides of the fixing frame 11 are provided with There is a jack 15, and through holes 16 are penetrated and opened on both sides of the fixed frame 10 to facilitate the passage of the limit column 19. Fixed shells 17 are fixedly connected to the outside of both sides of the fixed frame 10. Telescopic grooves 18 are penetrated and opened on the opposite sides of the two fixed shells 17 to facilitate the retraction of the limit column 19. A pull rod 3 is penetrated and slidably connected in the telescopic groove 18, which can drive the limit column 19 to move. The inner end of the pull rod 3 is fixedly connected to the limit column 19. A rotating plate 20 is arranged on the outside of the fixed shell 17, and the rotating plate 20 can drive the pull rod 3 to move. A through groove 4 is opened in the rotating plate 20, and a rotating shaft 21 is rotatably connected in the through groove 4.

[0033] Reference Figure 1 and Figure 2 The heat energy utilization component includes a water tank 9, which is arranged outside the flue gas pipe 2. A water inlet pipe 5 is fixedly connected to the top of the water tank 9. A water outlet pipe 6 passes through and is fixedly connected to the front side of the water tank 9. A valve 8 is arranged outside the water outlet pipe 6. Two support frames 7 are fixedly connected to the bottom of the water tank 9. The flue gas pipe 2 in the water tank 9 is U-shaped, which can increase the contact area with the water in the water tank 9. The heat energy utilization component can heat the water in the water tank 9 through the flue gas pipe 2 to improve the utilization rate.

[0034] Reference Figure 3 and Figure 4A uniformly distributed first spring 12 is fixedly connected in the installation groove 13, and the first spring 12 is arranged at the bottom of the fixing frame 11. The outside of the rotating shaft 21 is rotatably connected to the pull rod 3, so that the rotating plate 20 drives the pull rod 3 to move through the rotating shaft 21. A second spring 22 is sleeved on the outside of the pull rod 3, and the second spring 22 is arranged in the telescopic groove 18. The second spring 22 is reset by the second spring 22, which can drive the limit column 19 to be inserted into the socket 15. The outside of the limit column 19 is arranged in the through hole 16, and the outside of the limit column 19 is slidably connected to the inner wall of the through hole 16, so that the limit column 19 can slide in the through hole 16. A handle 23 is fixedly connected to the top of the fixing frame 11, and the fixing frame 11 and the filter screen 14 can be conveniently taken out through the handle 23.

[0035] Working principle: During operation, the flue gas discharged from the furnace of the furnace body 1 through the flue pipe enters the flue pipe 2, and the water in the water tank 9 is heated through the heat transfer of the flue pipe 2. Then, the flue gas is filtered through the filter 14 and discharged from the right end of the flue pipe 2. The heated water can be discharged from the water outlet pipe 6 on the outer wall of the water tank 9 for use. When the filter 14 needs to be replaced, the rotating plates 20 on both sides of the fixed frame 10 are pulled downward to rotate the rotating plates 20 90° and then the bottom of the rotating plates 20 limits the fixed shell 17. At this time, the rotating plates 20 rotate along the rotating shaft 21, and then the pull rod 3 can be pulled. The pull rod 3 drives the limiting column 19 to squeeze the second spring 22 to retract into the telescopic groove 18. At this time, the limiting column 19 is disengaged from the socket 15, and cooperates with the first spring 12 to reset, driving the fixing frame 11 to be ejected in the mounting groove 13, so that the fixing frame 11 and the filter 14 can be removed from the mounting groove 13 for cleaning or replacement.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flue for utilizing thermal energy of boiler flue gas, comprising a furnace body (1), characterized in that: A flue gas pipe (2) is passed through and fixedly connected to the right side of the furnace body (1), a heat energy utilization component is arranged outside the flue gas pipe (2), a fixing frame (10) is fixedly connected to the right end of the flue gas pipe (2), a mounting groove (13) is provided in the fixing frame (10), a fixing frame (11) is slidably connected in the mounting groove (13), a filter screen (14) is fixedly connected in the fixing frame (11), plug holes (15) are provided on both sides of the fixing frame (11), and a filter screen (14) is fixedly connected in the fixing frame (11). A through hole (16) is provided, and both sides of the fixed frame (10) are fixedly connected to a fixed shell (17), and the opposite sides of the two fixed shells (17) are penetrated and provided with a telescopic groove (18), and a pull rod (3) is penetrated and slidably connected in the telescopic groove (18), and the inner end of the pull rod (3) is fixedly connected to a limiting column (19), and a rotating plate (20) is provided on the outer side of the fixed shell (17), and a through groove (4) is provided in the rotating plate (20), and a rotating shaft (21) is rotatably connected in the through groove (4).

2. A flue for utilizing boiler flue gas heat energy according to claim 1, characterized in that: The heat energy utilization component comprises a water storage tank (9), the water storage tank (9) is arranged outside the flue gas pipe (2), the top of the water storage tank (9) is fixedly connected to a water inlet pipe (5), the front side of the water storage tank (9) is penetrated and fixedly connected to a water outlet pipe (6), and a valve (8) is arranged outside the water outlet pipe (6).

3. The flue for utilizing thermal energy of boiler flue gas according to claim 1, characterized in that: A uniformly distributed first spring (12) is fixedly connected in the installation groove (13), and the first spring (12) is arranged at the bottom of the fixing frame (11).

4. The flue for utilizing thermal energy of boiler flue gas according to claim 1, characterized in that: The outside of the rotating shaft (21) is rotatably connected to the pull rod (3).

5. The flue for utilizing thermal energy of boiler flue gas according to claim 1, characterized in that: The pull rod (3) is sleeved with a second spring (22) on its exterior, and the second spring (22) is arranged in the telescopic slot (18).

6. The flue for utilizing boiler flue gas heat energy according to claim 1, characterized in that: The limiting column (19) is arranged in the through hole (16), and the outside of the limiting column (19) is slidably connected to the inner wall of the through hole (16).

7. The flue for utilizing boiler flue gas heat energy according to claim 1, characterized in that: A handle (23) is fixedly connected to the top of the fixing frame (11).

8. The flue for utilizing thermal energy of boiler flue gas according to claim 2, characterized in that: Two support frames (7) are fixedly connected to the bottom of the water storage tank (9).

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