Medicament-adjustable synergistic spraying structure for low-temperature denitration reactor of gas-fired boiler

Abstract

The utility model relates to the technical field of gas-fired boilers, and provides a gas-fired boiler low-temperature denitration reactor medicament adjustable synergistic spraying structure which comprises a barrel, a lifting ring, a fixing frame, a swing mechanism, a spraying mechanism and a lifting mechanism, the lifting ring is arranged in the barrel in a sliding mode, the fixing frame is fixedly connected in the lifting ring, the swing mechanism is arranged on the fixing frame, and the spraying mechanism is arranged on the lifting ring. The spraying mechanism is arranged on the swinging mechanism and is used for changing the spraying angle, the spraying mechanism is arranged on the swinging mechanism and is used for uniformly spraying a reducing agent, and the lifting mechanism is arranged in the cylinder and is used for driving the lifting ring to lift and move. The denitration efficiency and the denitration effect are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas boilers, and specifically, to a medicament adjustable and efficiency-enhancing spraying structure for a low-temperature denitration reactor of a gas boiler. Background Art

[0002] A low-temperature denitration reactor of a gas boiler is an important device for reducing nitrogen oxide emissions in the tail gas of a gas boiler. It usually adopts selective catalytic reduction (SCR) technology. At a certain temperature, by spraying reducing agents such as ammonia water, urea, etc. into the reactor, under the action of a catalyst, nitrogen oxides in the tail gas are converted into nitrogen and water.

[0003] When the reducing agent is sprayed into the reactor through a nozzle, since the spraying angle of the nozzle is generally fixed, when the tail gas enters the reactor, it is difficult to adjust the spraying angle of the nozzle, and thus it is difficult to uniformly mix and contact with the reducing agent, reducing the denitration efficiency and effect. Content of the Utility Model

[0004] The utility model provides a medicament adjustable and efficiency-enhancing spraying structure for a low-temperature denitration reactor of a gas boiler, which solves the problem in the prior art that it is difficult to adjust the spraying angle of the nozzle, and thus it is difficult to uniformly mix and contact with the reducing agent, reducing the denitration efficiency and effect.

[0005] The technical solution of the utility model is as follows: A medicament adjustable and efficiency-enhancing spraying structure for a low-temperature denitration reactor of a gas boiler, comprising: a cylinder body, a lifting ring, a fixing frame, a swinging mechanism, a spraying mechanism and a lifting mechanism;

[0006] The lifting ring is slidably arranged in the cylinder body;

[0007] The fixing frame is fixedly connected inside the lifting ring;

[0008] The swinging mechanism is arranged on the fixing frame and is used for changing the spraying angle;

[0009] The spraying mechanism is arranged on the swinging mechanism and is used for uniformly spraying the reducing agent;

[0010] The lifting mechanism is arranged in the cylinder body and is used for driving the lifting ring to move up and down.

[0011] Preferably, the swinging mechanism comprises: a rotating frame, a rotating gear and a driving assembly;

[0012] The rotating frame is provided with a plurality of rotating frames, and all the rotating frames are rotatably connected to the fixing frame;

[0013] Each rotating frame is fixedly connected with a rotating gear;

[0014] The driving assembly is arranged on the fixed frame and is used to drive a plurality of rotating gears to rotate.

[0015] Further, the driving assembly includes: a toothed plate, a connecting frame, and a power assembly;

[0016] Each of the rotating gears is meshed with a toothed plate;

[0017] The connecting frame is fixedly connected between a plurality of toothed plates;

[0018] The power assembly is arranged on the fixed frame and is used to drive the connecting frame to move.

[0019] Still further, the spraying mechanism includes: a spray pipe, a spray head, a hose, and a delivery pipe;

[0020] Each of the rotating frames is fixedly connected with a spray pipe;

[0021] Two spray heads are communicated with each of the spray pipes;

[0022] A hose is communicated between every two adjacent spray pipes;

[0023] The delivery pipe is communicated with one of the spray pipes.

[0024] As a further solution of the present application, the lifting mechanism includes: a lifting block, a driving screw rod, and a first motor;

[0025] The lifting block is fixedly connected to the lifting ring;

[0026] The driving screw rod is rotatably connected inside the cylinder body. A threaded hole is formed in the lifting block, and the driving screw rod is threadedly connected in the threaded hole;

[0027] The first motor is arranged on the cylinder body, and the output end of the first motor is fixedly connected to the driving screw rod.

[0028] As a still further solution of the present application, a sliding block is fixedly connected to the lifting ring. A sliding hole is formed in the sliding block, and a sliding rod is fixedly connected inside the cylinder body. The sliding rod is slidably arranged in the sliding hole.

[0029] On the basis of the foregoing solution, two fixing rings are formed in the rotating frame, and the spray pipe is fixedly connected between the two fixing rings.

[0030] On the basis of the foregoing solution and further, the power assembly includes: a support frame and a first electric cylinder;

[0031] The support frame is fixedly connected to the fixed frame;

[0032] The first electric cylinder is arranged on the support frame, and the output end of the first electric cylinder is fixedly connected to the connecting frame.

[0033] As a preferred technical solution of the present application, through holes are provided on the cylinder body, and the conveying pipe penetrates through the through holes and extends to the outside of the cylinder body.

[0034] As a preferred technical solution of the present application, a bottom plate is fixedly connected inside the cylinder body, and the driving screw rod is rotatably connected to the bottom plate.

[0035] The working principle and beneficial effects of the present utility model are as follows:

[0036] 1. In the present utility model, through the arrangement of the swinging mechanism and the spraying mechanism, it is convenient to adjust the spraying angle in multiple angles, thereby improving the spraying range.

[0037] 2. In the present utility model, through the arrangement of the lifting mechanism, it is convenient to adjust the spraying height, thereby increasing the mixing uniformity with the tail gas.

[0038] 3. In the present utility model, through the cooperation among the cylinder body, the lifting ring, the fixing frame, the swinging mechanism, the spraying mechanism and the lifting mechanism, it is convenient to adjust the spraying angle, improve the mixing uniformity of the tail gas and the reducing agent, and further improve the efficiency and effect of tail gas denitration. Description of the Drawings

[0039] The following further details the present utility model in conjunction with the drawings and specific embodiments.

[0040] Figure 1 is the overall structural schematic diagram of the present utility model;

[0041] Figure 2 is the sectional structural schematic diagram of the present utility model;

[0042] Figure 3 is the structural schematic diagram of the swinging mechanism, the spraying mechanism and the lifting mechanism of the present utility model;

[0043] Figure 4 is the structural schematic diagram of the swinging mechanism and the spraying mechanism of the present utility model.

[0044] In the figure: 1. Cylinder body; 2. Lifting ring; 3. Fixing frame; 4. Rotating frame; 5. Rotating gear; 6. Rack; 7. Connecting frame; 8. Spraying pipe; 9. Spraying head; 10. Hose; 11. Conveying pipe; 12. Lifting block; 13. Driving screw rod; 14. First motor; 15. Slide block; 16. Slide rod; 17. Fixed ring; 18. Support frame; 19. First electric cylinder; 20. Bottom plate. Specific Embodiments

[0045] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0046] As Figures 1 to 4 shown, this embodiment proposes a spray structure with adjustable efficiency enhancement for medicaments in a low-temperature denitration reactor of a gas boiler, including: a cylinder body 1, a lifting ring 2, a fixing frame 3, a swinging mechanism, a spraying mechanism, and a lifting mechanism. The lifting ring 2 is slidably arranged in the cylinder body 1, and the fixing frame 3 is fixedly connected inside the lifting ring 2. Through the cooperation among the cylinder body 1, the lifting ring 2, the fixing frame 3, the swinging mechanism, the spraying mechanism, and the lifting mechanism, it is convenient to adjust the spraying angle, improve the uniformity of the mixture of the tail gas and the reducing agent, and thus improve the efficiency and effect of tail gas denitration.

[0047] Among them, the swinging mechanism is arranged on the fixing frame 3 and is used to change the spraying angle. The swinging mechanism includes: a rotating frame 4, a rotating gear 5, and a driving component. Two fixing rings 17 are provided on the rotating frame 4, and the spray pipe 8 is fixedly connected between the two fixing rings 17. A plurality of rotating frames 4 are rotatably connected to the fixing frame 3, and a rotating gear 5 is fixedly connected to each rotating frame 4. The driving component is arranged on the fixing frame 3 and is used to drive the plurality of rotating gears 5 to rotate. The driving component includes: a toothed plate 6, a connecting frame 7, and a power component. A toothed plate 6 is engaged with each rotating gear 5, the connecting frame 7 is fixedly connected between the plurality of toothed plates 6, and the power component is arranged on the fixing frame 3 and is used to drive the connecting frame 7 to move. The power component includes: a support frame 18 and a first electric cylinder 19. The support frame 18 is fixedly connected to the fixing frame 3, the first electric cylinder 19 is arranged on the support frame 18, and the output end of the first electric cylinder 19 is fixedly connected to the connecting frame 7. Specifically, the first electric cylinder 19 arranged on the support frame 18 drives the connecting frame 7 to descend. When the connecting frame 7 descends, it drives the plurality of toothed plates 6 to descend. When the plurality of toothed plates 6 descend, they drive the plurality of rotating gears 5 to rotate, and then drive the spray pipe 8 and the spray head 9 arranged on the rotating frame 4 to swing, thereby adjusting the spraying position.

[0048] Among them, the spraying mechanism is arranged on the swinging mechanism and is used for uniformly spraying the reducing agent. The spraying mechanism includes: a spray pipe 8, a spray head 9, a hose 10, and a delivery pipe 11. A through hole is provided on the cylinder body 1, and the delivery pipe 11 penetrates through the through hole and extends outside the cylinder body 1. A spray pipe 8 is fixedly connected to each rotating frame 4, and two spray heads 9 are connected to each spray pipe 8. A hose 10 is connected between every two adjacent spray pipes 8. The delivery pipe 11 is connected to one of the spray pipes 8. Specifically, the delivery pipe 11 is connected to an external pipeline, and then the reducing agent is transported into the spray pipe 8 through the delivery pipe 11. Through the connection of the hose 10 to multiple spray pipes 8, the reducing agent is transported into multiple spray pipes 8 and is sprayed out through the spray heads 9, so as to be mixed with the tail gas.

[0049] Among them, the lifting mechanism is arranged inside the cylinder body 1 and is used to drive the lifting ring 2 to move up and down. The lifting mechanism includes: a lifting block 12, a driving screw 13, and a first motor 14. A bottom plate 20 is fixedly connected inside the cylinder body 1, and the driving screw 13 is rotatably connected to the bottom plate 20. A slider 15 is fixedly connected to the lifting ring 2, and a sliding hole is provided on the slider 15. A sliding rod 16 is fixedly connected inside the cylinder body 1, and the sliding rod 16 is slidably arranged in the sliding hole. The lifting block 12 is fixedly connected to the lifting ring 2, the driving screw 13 is rotatably connected inside the cylinder body 1, a threaded hole is provided on the lifting block 12, and the driving screw 13 is threadedly connected in the threaded hole. The first motor 14 is arranged on the cylinder body 1, and the output end of the first motor 14 is fixedly connected to the driving screw 13. Specifically, the driving screw 13 is driven to rotate by the first motor 14 arranged on the cylinder body 1, and then the lifting block 12 and the lifting ring 2 are driven to move up and down, so as to adjust the height of spraying.

[0050] In this embodiment, when spraying the tail gas is required, the delivery pipe 11 is connected to an external pipeline, and then the reducing agent is transported into the spray pipe 8 through the delivery pipe 11. Through the connection of the hose 10 to multiple spray pipes 8, the reducing agent is transported into multiple spray pipes 8 and is sprayed out through the spray heads 9, so as to be mixed with the tail gas. Then the first motor 14 is started to drive the driving screw 13 to rotate, and then the lifting block and the lifting ring 2 are driven to move up and down, so as to adjust the height of spraying. Then the first electric cylinder 19 is started to drive the connecting frame 7 to descend. When the connecting frame 7 descends, it drives multiple toothed plates 6 to descend. When the multiple toothed plates 6 descend, they drive multiple rotating gears 5 to rotate, and then drive the spray pipes 8 and spray heads 9 arranged on the rotating frame 4 to swing, so as to adjust the spraying position.

[0051] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A medicament adjustable and efficiency-enhancing spraying structure for a low-temperature denitration reactor of a gas boiler, characterized in that Comprising: A cylinder body (1); A lifting ring (2), which is slidably arranged inside the cylinder body (1); A fixing frame (3), which is fixedly connected inside the lifting ring (2); A swinging mechanism, which is arranged on the fixing frame (3) and is used to change the spraying angle; A spraying mechanism, which is arranged on the swinging mechanism and is used to uniformly spray the reducing agent; A lifting mechanism, which is arranged inside the cylinder body (1) and is used to drive the lifting ring (2) to move up and down.

2. The adjustable and efficiency-enhancing spray structure for medicaments of a low-temperature denitration reactor of a gas boiler according to claim 1, wherein The swinging mechanism includes: A rotating frame (4), and a plurality of the rotating frames (4) are rotatably connected to the fixing frame (3); A rotating gear (5), and each rotating frame (4) is fixedly connected with the rotating gear (5); A driving assembly, which is arranged on the fixing frame (3) and is used to drive a plurality of the rotating gears (5) to rotate.

3. The adjustable and efficiency-enhancing spraying structure for medicaments of a low-temperature denitration reactor of a gas boiler according to claim 2, wherein, The driving assembly includes: A toothed plate (6), and each rotating gear (5) is meshed with the toothed plate (6); A connecting frame (7), which is fixedly connected between a plurality of the toothed plates (6); A power assembly, which is arranged on the fixing frame (3) and is used to drive the connecting frame (7) to move.

4. The adjustable and efficiency-enhancing spray structure for medicaments of a low-temperature denitration reactor of a gas boiler according to claim 3, characterized in that, The spraying mechanism includes: A spraying pipe (8), and each rotating frame (4) is fixedly connected with the spraying pipe (8); A spray head (9), and two spray heads (9) are communicated with each spraying pipe (8); A hose (10), and the hose (10) is communicated between every two adjacent spraying pipes (8); A delivery pipe (11), which is communicated with one of the spraying pipes (8).

5. The adjustable and efficiency-enhancing spray structure for medicaments of a low-temperature denitration reactor of a gas boiler according to claim 4, wherein The lifting mechanism includes: A lifting block (12), which is fixedly connected to the lifting ring (2); A driving screw rod (13), which is rotatably connected inside the cylinder body (1), a threaded hole is formed on the lifting block (12), and the driving screw rod (13) is threadedly connected in the threaded hole; A first motor (14), which is arranged on the cylinder body (1), and the output end of the first motor (14) is fixedly connected with the driving screw rod (13).

6. The adjustable and efficiency-enhancing spray structure for medicaments of a low-temperature denitration reactor of a gas boiler according to claim 5, wherein A slider (15) is fixedly connected to the lifting ring (2), a sliding hole is formed on the slider (15), and a sliding rod (16) is fixedly connected inside the cylinder body (1), and the sliding rod (16) is slidably arranged in the sliding hole.

7. An adjustable and efficiency-enhancing spray structure for medicaments of a low-temperature denitration reactor of a gas boiler according to claim 6, characterized in that Two fixing rings (17) are formed on the rotating frame (4), and the spraying pipe (8) is fixedly connected between the two fixing rings (17).

8. A medicament adjustable and efficiency-enhancing spray structure for a low-temperature denitration reactor of a gas boiler, characterized in that, The power assembly includes: A support frame (18), which is fixedly connected to the fixing frame (3); A first electric cylinder (19), which is arranged on the support frame (18), and the output end of the first electric cylinder (19) is fixedly connected with the connecting frame (7).

9. The adjustable and efficiency-enhancing spray structure for medicaments of a low-temperature denitration reactor of a gas boiler according to claim 8, characterized in that, A through hole is formed on the cylinder body (1), and the delivery pipe (11) penetrates through the through hole and extends outside the cylinder body (1).

10. A medicament adjustable and efficiency-enhancing spraying structure for a low-temperature denitration reactor of a gas boiler according to claim 9, characterized in that, A bottom plate (20) is fixedly connected inside the cylinder body (1), and the driving screw rod (13) is rotatably connected to the bottom plate (20).

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