Flue gas denitration device

Abstract

The utility model relates to the technical field of clean production, in particular to a flue gas denitration device which comprises a flue gas inlet pipe, a first U-shaped pipe is mounted at the top of the smoke inlet pipe, and connecting pipes are mounted at the two ends of the first U-shaped pipe; a second U-shaped pipe is mounted at one ends of the two connecting pipes, a smoke outlet pipe is mounted on the outer wall of the second U-shaped pipe, and a denitration mechanism is mounted on the outer wall of the smoke outlet pipe; connecting pieces are mounted on the outer walls of the two connecting pipes, mounting grooves are formed in one ends of the connecting pieces, dust filter plates are mounted in the mounting grooves, fixing pieces are mounted at one ends of the dust filter plates, and sealing strips are mounted on the outer walls of the fixing pieces; a clamping hole is formed in the outer wall of the fixing piece. A sliding groove is formed in one end of the connecting piece, a sliding block is installed in the sliding groove, a connecting plate is fixed to one end of the sliding block, and a clamping column is fixed to one end of the connecting plate.

Description

Technical Field

[0001] The utility model relates to the technical field of clean production, in particular to a flue gas denitrification device. Background Art

[0002] As we all know, with the strengthening of people's environmental awareness, the country's environmental protection requirements are getting higher and higher. Enterprises must treat flue gas to meet the corresponding national standards when discharging flue gas. Some industries and regions require ultra-low emissions of external flue gas. At present, denitrification devices are usually used to treat flue gas. After searching, China Patent Network discloses a flue gas denitrification device with a publication number of CN215411945U. Although a first flue gas exhaust pipe is provided on the boiler, the end of the first flue gas exhaust pipe extends into the first dust removal device, a second flue gas exhaust pipe is provided at the end of the first dust removal device, the end of the second flue gas exhaust pipe extends into the second dust removal device, a third flue gas exhaust pipe is provided at the end of the second dust removal device, a denitrification mechanism is provided at the end of the third flue gas exhaust pipe, and a first exhaust pipe is provided at the end of the denitrification mechanism; dust particles can be removed before denitrification, so that the denitrification effect is better, but the patent is not convenient for disassembly and maintenance of the dust removal device, and its practicality is low.

[0003] Therefore, a flue gas denitrification device is proposed. Utility Model Content

[0004] The utility model aims to drive the telescopic rod and the compression spring to perform a contraction movement. At this time, the telescopic rod will drive the slider to move accordingly in the slide groove. When the slider moves, the clamping column will be driven to move. After one end of the clamping column is disengaged from the clamping hole, the dust filter plate can be disassembled.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A flue gas denitrification device, comprising:

[0007] Smoke inlet pipe;

[0008] A first U-shaped tube is installed on the top of the smoke inlet tube, and connecting tubes are installed at both ends of the first U-shaped tube;

[0009] A second U-shaped tube is installed at one end of the two connecting tubes, a smoke outlet pipe is installed on the outer wall of the second U-shaped tube, and a denitrification mechanism is installed on the outer wall of the smoke outlet pipe;

[0010] A connecting piece is installed on each of the two connecting pipes. A mounting groove is provided at one end of the connecting piece. A dust filter plate is installed in the mounting groove.

[0011] Preferably, a fixing piece is installed at one end of the dust filter plate, and a sealing strip is installed on the fixing piece;

[0012] A clamping hole is provided on the outer wall of the fixing piece;

[0013] A slide groove is provided at one end of the connecting piece, a slider is installed in the slide groove, a connecting plate is fixed at one end of the slider, and a clamping column is fixed at one end of the connecting plate.

[0014] Preferably, one end of the clamping column away from the connecting plate is clamped in the clamping hole.

[0015] Preferably, a first valve body and a second valve body are installed on the outer walls of the two connecting pipes.

[0016] Preferably, a telescopic rod is fixed to the inner wall of one side of the slide slot, and one end of the telescopic rod away from the slide slot is fixed to the slider;

[0017] A compression spring is provided outside the telescopic rod;

[0018] One end of the compression spring is fixed to the inner wall of one side of the slide slot, and the other end of the compression spring is fixed to the slide block.

[0019] Preferably, a cooling jacket is installed on the smoke outlet pipe, and the cooling jacket is arranged below the denitration mechanism;

[0020] A cooling pipe is installed in a winding manner inside the cooling jacket;

[0021] One end of the cooling pipe is connected to a water inlet pipe, and the other end of the cooling pipe is connected to a water outlet pipe.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] The utility model is provided with two connecting pipes, and the two connecting pipes can discharge the smoke at the same time, thereby improving the exhaust efficiency of the smoke;

[0024] When the dust filter plate is disassembled, the telescopic rod and the compression spring are driven to retract, and the telescopic rod drives the slider to move in the slide slot accordingly. When the slider moves, the clamping column is driven to move. After one end of the clamping column is separated from the clamping hole, the dust filter plate can be disassembled. Therefore, the utility model is convenient for disassembly and maintenance of the dust filter plate.

[0025] When the dust filter plate is disassembled, the first valve body and the second valve body on the connecting pipe corresponding to the dust filter plate are closed. At this time, the other connecting pipe will work normally to avoid affecting the emission of flue gas when the dust filter plate is maintained.

[0026] The utility model connects a water inlet pipe with an external cold water pipe, so that the cold water in the external cold water pipe enters the interior of the cooling pipe through the water inlet pipe and is discharged from the water outlet pipe. During this process, the cold water in the cooling pipe cools down the flue gas, avoiding the high flue gas temperature from affecting the environment and the denitrification mechanism, thereby improving the working efficiency and service life of the denitrification mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a flue gas denitrification device in an embodiment of the utility model;

[0028] Figure 2 It is a schematic diagram of the front structure in an embodiment of the utility model;

[0029] Figure 3 This is a schematic diagram of the installation slot structure in an embodiment of the utility model;

[0030] Figure 4 It is a schematic diagram of the dust filter plate connection structure in an embodiment of the utility model.

[0031] In the figure: 1. smoke inlet pipe; 2. first U-shaped pipe; 3. connecting pipe; 4. second U-shaped pipe; 5. smoke outlet pipe; 6. denitration mechanism; 7. connecting piece; 8. mounting groove; 9. dust filter plate; 10. fixing piece; 11. clamping hole; 12. slide groove; 13. slider; 14. connecting plate; 15. clamping column; 16. sealing strip; 17. telescopic rod; 18. compression spring; 19. first valve body; 20. second valve body; 21. cooling jacket; 22. water inlet pipe; 23. water outlet pipe. DETAILED DESCRIPTION

[0032] The following will be combined with 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 in 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.

[0033] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. Embodiment 1:

[0034] See also Figure 1-4, the utility model provides a technical solution: to achieve the above purpose, the utility model provides the following technical solution: a flue gas denitrification device, comprising: a smoke inlet pipe 1; a first U-shaped tube 2 is installed on the top of the smoke inlet pipe 1, and connecting tubes 3 are installed at both ends of the first U-shaped tube 2; a second U-shaped tube 4 is installed at one end of the two connecting tubes 3, a smoke outlet pipe 5 is installed on the outer wall of the second U-shaped tube 4, and a denitrification mechanism 6 is installed on the outer wall of the smoke outlet pipe 5; connecting pieces 7 are installed on the outer walls of the two connecting tubes 3, a mounting groove 8 is opened at one end of the connecting piece 7, a dust filter plate 9 is installed in the mounting groove 8, a fixing piece 10 is installed at one end of the dust filter plate 9, and a sealing strip 16 is installed on the outer wall of the fixing piece 10 A clamping hole 11 is provided on the outer wall of the fixing member 10; a slide groove 12 is provided at one end of the connecting member 7, a slider 13 is installed in the slide groove 12, a connecting plate 14 is fixed to one end of the slider 13, a clamping column 15 is fixed to one end of the connecting plate 14, and the end of the clamping column 15 away from the connecting plate 14 is clamped in the clamping hole 11, and a first valve body 19 and a second valve body 20 are installed on the outer walls of the two connecting pipes 3, a telescopic rod 17 is fixed to the inner wall of one side of the slide groove 12, and the end of the telescopic rod 17 away from the slide groove 12 is fixed to the slider 13; a compression spring 18 is provided on the outside of the telescopic rod 17; one end of the compression spring 18 is fixed to the inner wall of one side of the slide groove 12, and the other end of the compression spring 18 is fixed to the slider 13.

[0035] Specifically, the utility model is provided with two connecting pipes 3, and the two connecting pipes 3 can discharge the smoke at the same time, thereby improving the exhaust efficiency of the smoke;

[0036] When the dust filter plate 9 is disassembled, the telescopic rod 17 and the compression spring 18 are driven to retract, and the telescopic rod 17 drives the slider 13 to move accordingly in the slide groove 12. When the slider 13 moves, the clamping column 15 is driven to move. After one end of the clamping column 15 is separated from the clamping hole 11, the dust filter plate 9 can be disassembled. Therefore, the utility model is convenient for disassembly and maintenance of the dust filter plate 9.

[0037] When the dust filter plate 9 is disassembled, the first valve body 19 and the second valve body 20 on the connecting pipe 3 corresponding to the dust filter plate 9 are closed. At this time, the other connecting pipe 3 will work normally to avoid affecting the emission of flue gas when the dust filter plate 9 is maintained. Embodiment 2:

[0038] See also Figure 1-2 The utility model provides a technical solution: a flue gas denitration device, a cooling jacket 21 is installed on the outer wall of the smoke outlet pipe 5, and the cooling jacket 21 is arranged below the denitration mechanism 6; a cooling pipe is installed in a winding manner inside the cooling jacket 21; one end of the cooling pipe is connected to a water inlet pipe 22, and the other end of the cooling pipe is connected to a water outlet pipe 23.

[0039] Specifically, the utility model connects the water inlet pipe 22 with the external cold water pipe, and the cold water in the external cold water pipe enters the interior of the cooling pipe through the water inlet pipe 22, and is then discharged from the water outlet pipe 23. During this process, the cold water in the cooling pipe cools the flue gas, avoiding the high flue gas temperature from affecting the environment and the denitrification mechanism, thereby improving the working efficiency and service life of the denitrification mechanism 6.

[0040] Working principle:

[0041] First, by providing two connecting pipes 3, the two connecting pipes 3 can discharge the flue gas at the same time, thereby improving the discharge efficiency of the flue gas. When the dust filter plate 9 is disassembled, the telescopic rod 17 and the compression spring 18 are driven to contract. At this time, the telescopic rod 17 drives the slider 13 to move accordingly in the slide groove 12. When the slider 13 moves, the clamping column 15 is driven to move. After one end of the clamping column 15 is detached from the clamping hole 11, the dust filter plate 9 can be disassembled. Therefore, the utility model is convenient for disassembly and maintenance of the dust filter plate 9.

[0042] Secondly, when the dust filter plate 9 is disassembled, the first valve body 19 and the second valve body 20 on the connecting pipe 3 corresponding to the dust filter plate 9 are closed, and the other connecting pipe 3 will work normally at this time, so as to avoid the flue gas discharge work being affected when the dust filter plate 9 is maintained;

[0043] Finally, by connecting the water inlet pipe 22 with the external cold water pipe, the cold water in the external cold water pipe will enter the cooling pipe through the water inlet pipe 22, and then be discharged from the water outlet pipe 23. In this process, the cold water in the cooling pipe will cool the flue gas, avoiding the high flue gas temperature from affecting the environment and the denitrification mechanism, thereby improving the working efficiency and service life of the denitrification mechanism 6.

[0044] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A flue gas denitrification device, characterized in that: include: Smoke inlet pipe (1); A first U-shaped tube (2) is installed on the top of the smoke inlet tube (1), and connecting tubes (3) are installed at both ends of the first U-shaped tube (2); A second U-shaped tube (4) is installed at one end of the two connecting tubes (3); a smoke outlet pipe (5) is installed on the outer wall of the second U-shaped tube (4); and a denitrification mechanism (6) is installed on the smoke outlet pipe (5); A connecting piece (7) is installed on each of the two connecting pipes (3); a mounting groove (8) is provided at one end of the connecting piece (7); and a dust filter plate (9) is installed in the mounting groove (8).

2. A flue gas denitration device according to claim 1, characterized in that: A fixing member (10) is installed at one end of the dust filter plate (9), and a sealing strip (16) is installed on the outer wall of the fixing member (10); The outer wall of the fixing member (10) is provided with a clamping hole (11); A slide groove (12) is provided at one end of the connecting member (7), a slider (13) is installed in the slide groove (12), a connecting plate (14) is fixed at one end of the slider (13), and a clamping column (15) is fixed at one end of the connecting plate (14).

3. A flue gas denitration device according to claim 2, characterized in that: One end of the clamping column (15) away from the connecting plate (14) is clamped inside the clamping hole (11).

4. A flue gas denitrification device according to claim 1, characterized in that: A first valve body (19) and a second valve body (20) are installed on the outer walls of the two connecting pipes (3).

5. A flue gas denitration device according to claim 2, characterized in that: A telescopic rod (17) is fixed to the inner wall of one side of the slide groove (12), and one end of the telescopic rod (17) away from the slide groove (12) is fixed to the slider (13); A compression spring (18) is provided outside the telescopic rod (17); One end of the compression spring (18) is fixed to the inner wall of one side of the slide groove (12), and the other end of the compression spring (18) is fixed to the slide block (13).

6. A flue gas denitration device according to claim 1, characterized in that: A cooling jacket (21) is also installed on the smoke outlet pipe (5), and the cooling jacket (21) is arranged below the denitration mechanism (6); A cooling pipe is installed in a winding manner inside the cooling jacket (21); One end of the cooling pipe is connected to a water inlet pipe (22), and the other end of the cooling pipe is connected to a water outlet pipe (23).

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