Guide plate and waste heat boiler flue gas inlet flue

Abstract

The utility model discloses a guide plate and a waste heat boiler flue gas inlet flue, and belongs to the technical field of gas turbine exhaust, the guide plate comprises a mounting frame, the inner side of the mounting frame is rotatably connected with a first guide plate and a second guide plate, the first guide plate and the second guide plate are arranged in a parallel symmetrical structure, and opening adjusting assemblies are arranged between the first guide plate and the mounting frame and between the second guide plate and the mounting frame. The opening adjusting assembly is used for adjusting the opening angle between the first guide plate and the second guide plate, a plurality of guide grooves are formed in the lower sides of the first guide plate and the second guide plate, the opening adjusting assembly comprises a motor, a connecting piece is arranged at the shaft end of the motor, and a second connecting rod is arranged at one end of the connecting piece and sleeved with a second gear. The two sides of the second gear are connected with gear sets in a meshed mode, one sides of the two gear sets are connected with first gears in a meshed mode, one sides of the two first gears are connected with first connecting rods in a sleeved mode, and the two first connecting rods are connected with the first guide plate and the second guide plate respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of gas turbine exhaust, in particular to a guide plate and a flue gas inlet duct of a waste heat boiler. Background Art

[0002] At present, the method commonly used by gas turbines to remove nitrogen dioxide is low-nitrogen combustion. However, as developed regions in China have put forward more stringent emission requirements for NOx emissions from gas turbines, it is impossible to meet NOx emission requirements by relying solely on the low-nitrogen combustion technology of gas turbines. For gas-steam combined cycle units, placing catalysts at appropriate positions in the waste heat boiler and using selective catalytic reduction (SCR) flue gas denitrification technology have become the first choice. In order to allow the catalyst in the waste heat boiler to obtain better reaction conditions, it is necessary to add guide plates and other devices to the expanded flue of the waste heat boiler.

[0003] In the prior art, a Chinese patent with application number CN202321536571.8 discloses a guide plate and a waste heat boiler inlet flue, a guide plate comprising a guide plate mechanism, including a fixed shaft, a guide plate body fixedly arranged on the fixed shaft; an adjustment mechanism, including a fixed ring, an adjustment component arranged on the fixed shaft, and a locking component arranged on the adjustment component; wherein the locking component is connected to the fixed ring.

[0004] In the prior art, the guide plate and the flue are directly limited by bolts, and it is inconvenient to disassemble and assemble the guide plate and the flue. The opening angle of the guide plate is adjusted before use. It is difficult to manually adjust it due to the high temperature during use. For this reason, we propose a guide plate and a waste heat boiler flue gas inlet duct. Utility Model Content

[0005] The utility model is to solve the shortcomings of the prior art and propose a guide plate and a waste heat boiler smoke inlet duct, which solves the problems of limited opening angle of the guide plate and inconvenient disassembly and assembly between the guide plate and the waste heat boiler smoke inlet duct.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A guide plate and a waste heat boiler flue gas inlet duct, comprising a mounting frame, wherein a guide plate 1 and a guide plate 2 are rotatably connected to the inner side of the mounting frame, wherein the guide plate 1 and the guide plate 2 are arranged in a parallel and symmetrical structure, an opening adjustment component is arranged between the guide plate 1, the guide plate 2 and the mounting frame, and the opening adjustment component is used to adjust the opening angle between the guide plate 1 and the guide plate 2, and a plurality of guide grooves are arranged on the lower sides of the guide plate 1 and the guide plate 2.

[0008] Preferably, the opening adjustment assembly includes a motor, a connecting piece is provided at the shaft end of the motor, a connecting rod 2 is provided at one end of the connecting piece, a gear 2 is sleeved on the outer side of the connecting rod 2, both sides of the gear 2 are meshingly connected with a gear set, one side of the two gear sets is meshingly connected with a gear 1, one side of the two gears 1 are sleeved with a connecting rod 1, and the two connecting rods 1 are respectively connected to the guide plate 1 and the guide plate 2.

[0009] Through the above technical solution, the motor drives the connecting piece, the connecting piece drives the connecting rod 2 to rotate, the connecting rod 2 drives the gear 2 to rotate, the gear 2 rotates and meshes to drive the two gear sets to rotate, the two gear sets respectively transmit the gear 1, the gear 1 drives the connecting rod 1 to rotate, the two connecting rods 1 respectively adjust the opening angle of the guide plate 1 and the guide plate 2, the opening angle adjustment of the guide plate 1 and the guide plate 2 cooperates with the guide groove, which can provide an opening angle adjustable function, and at the same time its diversion stability is high.

[0010] Preferably, the installation frame is arranged in a cavity structure, and a connecting plate is arranged on the lower side of the installation frame.

[0011] Through the above technical solution, the hollow structure of the installation frame can improve the weather resistance of the installation frame and increase the service life of the installation frame.

[0012] Preferably, the connecting member comprises a connecting rod, the connecting rod is arranged at the shaft end of the motor, one end of the connecting rod is provided with a cross block, one end of the connecting rod is provided with a cross slot, and the cross slot matches the cross block.

[0013] Through the above technical solution, the cross block cooperates with the cross groove to provide a connection synchronization function between the connecting rod and the second connecting rod.

[0014] A flue gas inlet duct for a waste heat boiler comprises a flue and a guide member, one side of the guide member is connected to one side of a mounting frame, an inserting groove is provided on the inner wall of the flue, the guide member is inserted into the inserting groove, a fixing component is provided in the inserting groove, and the fixing component is used to fix the guide member.

[0015] Preferably, the fixing assembly includes a fixing groove, which is arranged on one side of the plug-in groove, a fixing plate is plugged into the fixing groove, a plug-in strip is arranged on one side of the fixing plate, the plug-in strip is plugged into the plug-in groove, and a fixing rod is arranged between the fixing plate and the fixing groove.

[0016] Through the above technical solution, the installation frame is connected to the plug-in slot in the flue with the guide piece, and then the fixed plate is inserted into the plug-in slot with the plug-in strip, which limits the guide piece and the installation frame at the same time. Finally, the fixing rod is used to fix the fixing plate and the flue to complete the installation, providing a quick disassembly and assembly function between the guide plate and the waste heat boiler flue gas inlet duct.

[0017] To sum up, in the utility model, the motor drives the connecting part, the connecting part drives the connecting rod 2 to rotate, the connecting rod 2 drives the gear 2 to rotate, the gear 2 rotates and meshes to drive the two gear sets to rotate, the two gear sets respectively transmit the gear 1, the gear 1 drives the connecting rod 1 to rotate, the two connecting rods 1 respectively adjust the opening angle of the guide plate 1 and the guide plate 2, the opening angle adjustment of the guide plate 1 and the guide plate 2 cooperates with the guide groove, which can provide an opening angle adjustable function, and at the same time its diversion stability is high.

[0018] In the utility model, the installation frame cooperates with the guide member to be connected to the plug-in groove in the flue, and then the fixing plate with the plug-in strip is inserted into the plug-in groove, which limits the guide member and the installation frame at the same time, and finally the fixing plate and the flue are fixed by the fixing rod, so as to complete the installation, and provide a quick disassembly and assembly function between the guide plate and the flue gas inlet of the waste heat boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front axial structure of the guide plate of the utility model;

[0020] Figure 2 This is a schematic diagram of the front-section axial structure of the guide plate of the utility model;

[0021] Figure 3 It is a schematic diagram of the explosive front axial structure of the deflector of the utility model;

[0022] Figure 4 It is a schematic diagram of the explosive bottom axial side structure of the guide plate of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the connecting piece of the utility model;

[0024] Figure 6 It is a schematic diagram of the explosion type structure of the flue gas inlet duct of the waste heat boiler of the utility model;

[0025] Figure 7 This is a schematic diagram of the front-section axial structure of the flue of the utility model;

[0026] Figure 8 It is a schematic diagram of the combined axial section structure of the guide plate and the flue gas inlet duct of the waste heat boiler of the utility model.

[0027] In the figure: 1. installation frame; 2. guide plate 1; 3. guide plate 2; 4. connecting plate; 5. guide groove; 6. connecting rod 1; 7. gear 1; 8. motor; 9. connecting piece; 91. connecting rod; 92. cross block; 10. connecting rod 2; 11. gear 2; 12. gear set; 13. flue; 14. plug-in groove; 15. fixing groove; 16. plug-in strip; 17. fixing plate; 18. fixing rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] like Figure 1-Figure 5 As shown, a guide plate comprises a mounting frame 1, the inner side of the mounting frame 1 is rotatably connected with a guide plate 1 2 and a guide plate 2 3, the guide plate 1 2 and the guide plate 2 3 are arranged in a parallel symmetrical structure, an opening adjustment component is arranged between the guide plate 1 2, the guide plate 2 3 and the mounting frame 1, the opening adjustment component is used to adjust the opening angle between the guide plate 1 2 and the guide plate 2 3, the mounting frame 1 is arranged in a cavity structure, a connecting plate 4 is arranged on the lower side of the mounting frame 1, and a plurality of guide grooves 5 are arranged on the lower sides of the guide plate 1 2 and the guide plate 2 3,

[0030] The opening adjustment component includes a motor 8, a connecting piece 9 is provided at the shaft end of the motor 8, a connecting rod 2 10 is provided at one end of the connecting piece 9, a gear 2 11 is sleeved on the outer side of the connecting rod 2 10, both sides of the gear 2 11 are meshingly connected with gear sets 12, one side of the two gear sets 12 is meshingly connected with gear 1 7, one side of the two gears 17 are sleeved with connecting rod 1 6, the two connecting rods 1 6 are respectively connected to the guide plate 1 2 and the guide plate 2 3, the connecting piece 9 includes a connecting rod 91, the connecting rod 91 is provided at the shaft end of the motor 8, a cross block 92 is provided at one end of the connecting rod 91, and a cross slot is provided at one end of the connecting rod 2 10, and the cross slot matches the cross block 92.

[0031] In this embodiment, the motor 8 drives the connecting member 9, the connecting member 9 drives the connecting rod 2 10 to rotate, the connecting rod 2 10 drives the gear 2 11 to rotate, the gear 2 11 rotates and engages to drive the two gear sets 12 to rotate, the two gear sets 12 respectively drive the gear 1 7, the gear 1 7 drives the connecting rod 1 6 to rotate, the two connecting rods 1 6 respectively adjust the opening angle of the guide plate 1 2 and the guide plate 2 3, the opening angle adjustment of the guide plate 1 2 and the guide plate 2 3 cooperates with the guide groove 5, and the opening angle adjustment between the guide plate 1 2 and the guide plate 2 3 is stabilized.

[0032] like Figure 6-Figure 8 As shown, a flue gas inlet duct for a waste heat boiler includes a flue 13 and a guide member, one side of the guide member is connected to one side of the mounting frame 1, a plug-in slot 14 is provided on the inner wall of the flue 13, the guide member is plugged into the plug-in slot 14, a fixing component is provided in the plug-in slot 14, the fixing component is used to fix the guide member, the fixing component includes a fixing slot 15, the fixing slot 15 is provided on one side of the plug-in slot 14, a fixing plate 17 is plugged into the fixing slot 15, a plug-in strip 16 is provided on one side of the fixing plate 17, the plug-in strip 16 is plugged into the plug-in slot 14, and a fixing rod 18 is provided between the fixing plate 17 and the fixing slot 15.

[0033] In this embodiment, the installation frame 1 is connected to the plug-in slot 14 in the flue 13 with the guide member, and then the fixing plate 17 is inserted into the plug-in slot 14 with the plug-in strip 16, which limits the guide member and can also limit the installation frame 1. Finally, the fixing rod 18 is used to fix the fixing plate 17 and the flue 13 to complete the installation.

[0034] It should be noted that the outside of all mechanical mechanisms are coated with high temperature resistant coating.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A guide plate, characterized in that: The invention comprises a mounting frame (1), wherein a guide plate 1 (2) and a guide plate 2 (3) are rotatably connected to the inner side of the mounting frame (1), wherein the guide plate 1 (2) and the guide plate 2 (3) are arranged in a parallel and symmetrical structure, and an opening adjustment component is arranged between the guide plate 1 (2), the guide plate 2 (3) and the mounting frame (1), wherein the opening adjustment component is used to adjust the opening angle between the guide plate 1 (2) and the guide plate 2 (3), and a plurality of guide grooves (5) are arranged on the lower sides of the guide plate 1 (2) and the guide plate 2 (3).

2. A guide plate according to claim 1, characterized in that: The installation frame (1) is arranged in a hollow structure, and a connecting plate (4) is arranged on the lower side of the installation frame (1).

3. A guide plate according to claim 1, characterized in that: The opening adjustment component comprises a motor (8), a connecting member (9) is provided at the shaft end of the motor (8), a connecting rod 2 (10) is provided at one end of the connecting member (9), a gear 2 (11) is sleeved on the outer side of the connecting rod 2 (10), both sides of the gear 2 (11) are meshingly connected with a gear set (12), one side of the two gear sets (12) is meshingly connected with a gear 1 (7), one side of the two gears 1 (7) is sleeved with a connecting rod 1 (6), and the two connecting rods 1 (6) are respectively connected to the guide plate 1 (2) and the guide plate 2 (3).

4. A guide plate according to claim 3, characterized in that: The connecting member (9) comprises a connecting rod (91), the connecting rod (91) is arranged at the shaft end of the motor (8), one end of the connecting rod (91) is provided with a cross block (92), one end of the connecting rod 2 (10) is provided with a cross groove, and the cross groove matches the cross block (92).

5. A flue gas inlet duct for a waste heat boiler using the guide plate according to any one of claims 1 to 4, characterized in that: The invention comprises a flue (13) and a guide member, one side of the guide member is connected to one side of a mounting frame (1), an inserting groove (14) is arranged on the inner wall of the flue (13), the guide member is inserted into the inserting groove (14), a fixing component is arranged in the inserting groove (14), and the fixing component is used to fix the guide member.

6. The flue gas inlet duct of the waste heat boiler according to claim 5, characterized in that: The fixing assembly comprises a fixing groove (15), the fixing groove (15) being arranged at one side of the plug-in groove (14), a fixing plate (17) being inserted into the fixing groove (15), a plug-in strip (16) being arranged at one side of the fixing plate (17), the plug-in strip (16) being plugged into the plug-in groove (14), and a fixing rod (18) being arranged between the fixing plate (17) and the fixing groove (15).

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