A kind of waste heat boiler flue gas baffle correction device

Abstract

A kind of waste heat boiler flue gas baffle correction device.Due to the jack is pushed out by hydraulic force, push rod is segmented, and cannot realize smooth push, therefore, the correction of baffle cannot realize fine correction.The utility model discloses a lower fixed frame and lifting frame, the lifting frame and the lower fixed frame are square ring frame, the front and rear ends of the lifting frame are respectively connected with screw rod, the bottom of the screw rod is rotatably connected with the lower fixed frame;Each described screw rod is fixed with sprocket, and the sprocket on two described screw rods is driven by chain.This utility model is used for waste heat boiler flue gas baffle correction.

Description

Technical Field

[0001] This utility model relates to a flue gas baffle plate correction device for waste heat boilers. Background Technology

[0002] The waste heat boiler's heating surface is modularly arranged. Each module has flue gas baffles on its upper, lower, and side sections to effectively prevent the formation of flue gas corridors and avoid affecting heat transfer. The lower flue gas baffles can slide relative to the modules, accommodating the downward expansion of the heated modules. However, during actual unit operation, uneven expansion in various parts and prolonged high temperatures of the baffles cause severe deformation of the lower baffles, forming flue gas corridors and seriously affecting boiler heat exchange.

[0003] The patent with publication number CN 220497373U discloses a portable straightening tool for flue gas baffle plates in waste heat boilers. It includes two corresponding support frames 2, which are fixedly connected together by multiple corresponding equal-length connecting rods 1. When in use, it is used in conjunction with a pry bar 3 or a jack 4. However, this device requires the use of a jack for fine adjustment. Since the jack pushes out the push rod through hydraulic pressure, the push rod is pushed out in segments and cannot be pushed out smoothly. Therefore, the straightening of the baffle plate cannot be finely straightened. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a waste heat boiler flue gas baffle plate correction device.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A waste heat boiler flue gas baffle plate correction device comprises a lower fixed frame and a lifting frame. Both the lifting frame and the lower fixed frame are square ring frames. The front and rear ends of the lifting frame are respectively threaded with lead screws, and the bottom of the lead screws is rotatably connected to the lower fixed frame.

[0007] Each of the aforementioned lead screws is fixed with a sprocket, and the sprockets on the two lead screws are connected by a chain drive.

[0008] The aforementioned waste heat boiler flue gas baffle plate correction device includes a lifting frame that is a square ring frame, and multiple upper pressure rollers that are slidably connected inside the lifting frame.

[0009] The aforementioned waste heat boiler flue gas baffle plate straightening device has a lower fixed frame that is a square ring frame, and multiple sets of bottom rollers are connected inside the lower fixed frame.

[0010] The aforementioned waste heat boiler flue gas baffle plate straightening device includes an upper pressure roller comprising a fixed roller, with roller shafts fixed at both ends of the fixed roller.

[0011] The aforementioned waste heat boiler flue gas baffle plate straightening device includes a bottom roller comprising a fixed shaft, on which a roller is sleeved, and both ends of the fixed shaft are fixed to the lower fixed frame. Beneficial effects

[0012] 1. This utility model sets up a lifting frame with multiple upper pressure rollers slidably connected inside the lifting frame. The upper pressure rollers press against the barrier plate. The lifting frame moves up and down by adjusting the screw. The barrier plate is corrected by pressing the upper pressure rollers, thus achieving smooth correction.

[0013] 2. The upper pressure roller of this utility model can slide, which can realize the correction of multiple deformable parts and improve the correction efficiency. Attached Figure Description

[0014] Figure 1 This is a top view of the present invention;

[0015] Figure 2 This is the front view of this utility model;

[0016] Figure 3 yes Figure 1 Sectional view of section AA;

[0017] Figure 4 yes Figure 2 BB section sectional view;

[0018] Figure 5 This is a schematic diagram of the structure of this utility model in use;

[0019] Figure 6 This is a schematic diagram of the structure for correcting multiple deformable parts;

[0020] In the diagram: 1. Lifting frame; 2. Guide rod; 3. Chain; 4. Lead screw; 5. Sprocket; 6. Bottom roller; 7. Upper pressure roller; 8. Dial plate; 9. Lower fixed frame; 10. Slide groove; 11. Baffle plate; 61. Roller; 62. Fixed shaft; 71. Fixed roller; 72. Roller shaft. Detailed Implementation

[0021] like Figures 1-4 As shown, a waste heat boiler flue gas baffle plate correction device comprises a lower fixed frame 9 and a lifting frame 1. Both the lifting frame and the lower fixed frame are square ring frames. The front and rear ends of the lifting frame are respectively threaded with lead screws 4. The bottom of the lead screw is rotatably connected to the lower fixed frame. The top of the lead screw is fixed with a dial 8. Multiple guide rods 2 are also fixed on the lower fixed frame. The guide rods pass through the round holes of the lifting frame. These guide rods can be used as limits for the vertical movement of the lifting frame, allowing it to move vertically up and down.

[0022] Each of the aforementioned lead screws is fixed with a sprocket 5. The sprockets on the two lead screws are driven by a chain 3. When adjusting the height of the lifting frame, hold one of the dials and rotate the lead screw. The lead screw is threadedly connected to the lifting frame and rotatably connected to the lower fixed frame. At the same time, the two lead screws are driven by the sprocket and the chain, which can realize the synchronous movement of the two and adjust the height of the lifting frame. This adjustment is a smooth and fine adjustment.

[0023] The lifting frame is a square ring frame, and multiple upper pressure rollers 7 are slidably connected inside the lifting frame.

[0024] The upper pressure roller includes a fixed roller 71, with roller shafts 72 fixed at both ends. The lifting frame is a square ring frame with sliding grooves on the front and rear sides inside. The width of the sliding grooves is slightly larger than the diameter of the roller shafts. The roller shafts of the upper pressure roller are located inside the sliding grooves, which allows the upper pressure roller to slide to different positions to correct multiple deformed parts at the same time.

[0025] The lower fixing frame is a square ring frame, and multiple sets of bottom rollers 6 are connected inside the lower fixing frame.

[0026] The bottom roller includes a fixed shaft 62, on which a roller 61 is sleeved. The roller is rotatably connected to the fixed shaft, and both ends of the fixed shaft are fixed to the lower fixed frame.

[0027] Working principle: When using it, refer to... Figure 5 Place the baffle plate 11 between the lifting frame and the lower fixed frame, then slide the position of the upper pressure roller so that one of them is at the top of the deformed bow of the baffle plate. Then hold the dial and rotate the screw. The screw is threadedly connected to the lifting frame and rotatably connected to the lower fixed frame. At the same time, the two screws are driven by the sprocket and chain, which can realize the synchronous movement of the two. The height of the lifting frame can be adjusted. This adjustment is a smooth fine adjustment. When the lifting frame moves downward, the upper pressure roller presses on the baffle plate and gradually presses down to correct the baffle plate.

[0028] When multiple deformed areas occur, refer to... Figure 6 By sliding each upper pressure roller to align it with the top of the deformed baffle plate, multiple deformed parts can be corrected simultaneously, improving correction efficiency.

Claims

1. A flue gas baffle plate correction device for waste heat boilers, characterized in that: Its components include a lower fixed frame and a lifting frame. Both the lifting frame and the lower fixed frame are square ring frames. The front and rear ends of the lifting frame are respectively threaded with lead screws, and the bottom of the lead screws is rotatably connected to the lower fixed frame. Each of the aforementioned lead screws is fixed with a sprocket, and the sprockets on the two lead screws are connected by a chain drive.

2. The waste heat boiler flue gas baffle plate correction device according to claim 1, characterized in that: The lifting frame is a square ring frame, and multiple upper pressure rollers are slidably connected inside the lifting frame.

3. The waste heat boiler flue gas baffle plate correction device according to claim 2, characterized in that: The lower fixing frame is a square ring frame, and multiple sets of bottom rollers are connected inside the lower fixing frame.

4. The waste heat boiler flue gas baffle plate correction device according to claim 3, characterized in that: The upper pressure roller includes a fixed roller, and roller shafts are fixed at both ends of the fixed roller.

5. The waste heat boiler flue gas baffle plate correction device according to claim 4, characterized in that: The bottom roller includes a fixed shaft, on which a roller is sleeved, and both ends of the fixed shaft are fixed to the lower fixed frame.

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