Coal economizer header with anti-blocking filter structure

Abstract

The utility model discloses a coal economizer collecting box with prevent stifled filter structure, including the box, the box one end is fixed with the standpipe, and the standpipe is away from the bottom of box one side fixed with the inlet pipe, the box side wall equidistance is fixed with a plurality of outlet pipes, the standpipe top is fixed with the top cover, the top cover lower surface side is fixed with the vertical rod, the vertical rod bottom is fixed with the frame board, and the frame board lower surface is fixed with the filter screen, the frame board lower surface middle part is rotatably connected with the driven shaft through the bearing, the driven shaft surface is fixed with the brush. In the utility model, setting the box, the standpipe, the frame board, the filter screen, the motor, the driving shaft, the driven shaft and the brush, the water is filtered the impurity in the water through the filter screen when entering the collecting box inside from the standpipe, in order to prevent the filter screen from being blocked, the driving shaft of motor output end drives the driven shaft and the brush to rotate, and the lower surface of filter screen is scraped by the brush, thereby avoiding the serious blockage in the filtering process, guaranteeing that water flow can pass normally.

Description

Technical Field

[0001] This utility model relates to the field of economizer header technology, and in particular to an economizer header with an anti-clogging filter structure. Background Technology

[0002] The economizer header with anti-clogging filter structure is an optimized boiler component primarily designed to address the problem of reduced heat transfer efficiency or even damage caused by impurity accumulation, scaling, or foreign object blockage in traditional economizer headers. This structure integrates a high-efficiency filter device inside the header or at the inlet. Its core advantage lies in balancing filtration and flow capacity, employing a high-flow, low-resistance design, and reducing maintenance frequency through optimized filter screen pore size, inclined arrangement, or self-cleaning structures (such as backwash interfaces). Corrosion-resistant, high-strength alloy steel or special coatings are selected to withstand high-temperature and high-pressure environments.

[0003] The current filter structure used at the front end of the economizer header is prone to clogging of the filter screen due to impurities during use, leading to a decrease in filter throughput and affecting normal water delivery. Furthermore, the filter structure is typically fixed between two pipes via flanges, requiring complete disassembly of the entire filter structure to clean the internal filter screen, making disassembly and cleaning cumbersome. Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose an economizer header with an anti-clogging filter structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an economizer header with an anti-clogging filter structure, comprising a housing, a vertical pipe fixed at one end of the housing, and a water inlet pipe fixed at the bottom end of the vertical pipe away from the housing, a plurality of water outlet pipes fixed at equal intervals on the side wall of the housing, a top cover fixed at the top of the vertical pipe, a vertical rod fixed on the side of the lower surface of the top cover, a frame plate fixed at the bottom end of the vertical rod, and a filter screen fixed on the lower surface of the frame plate, a driven shaft rotatably connected to the middle of the lower surface of the frame plate via a bearing, a brush fixed on the surface of the driven shaft, with the brush bristles in contact with the lower surface of the filter screen, a motor fixed on the lower surface of the vertical pipe, a drive shaft fixed at the top output end of the motor, and a linkage assembly jointly provided at the top end of the drive shaft and the bottom end of the driven shaft, the drive shaft driving the driven shaft to rotate through the linkage assembly.

[0006] Furthermore, a support frame is fixed inside the vertical pipe, and the support frame is located between the water inlet pipe and the tank body, with the lower surface of the frame plate fitting against the support frame.

[0007] Furthermore, the linkage assembly includes an active plate fixed to the top of the active shaft and a driven plate fixed to the bottom of the driven shaft. A square groove is formed in the middle of the lower surface of the driven plate, and a movable groove is formed in the middle of the upper surface of the active plate. A spring is fixed to the bottom wall of the movable groove, and a square rod is fixed to the top of the spring. The square rod is slidably connected to the movable groove, and the top of the square rod is inserted into the square groove.

[0008] Furthermore, the brush is fixedly connected to the driven shaft by bolts.

[0009] Furthermore, a top plate is fixed to the top of the vertical pipe, and the top cover is fixed to the upper surface of the top plate by bolts.

[0010] Furthermore, an annular groove is formed on the upper surface of the top plate, and a sealing ring is engaged inside the annular groove.

[0011] The beneficial effects of this utility model are:

[0012] 1. In use, this utility model is an economizer header with an anti-clogging filter structure, which includes a housing, a vertical pipe, a frame plate, a filter screen, a motor, a drive shaft, a driven shaft, and a brush. When water enters the header from the vertical pipe, it passes through the filter screen to filter impurities. To prevent the filter screen from being clogged, the drive shaft at the output end of the motor drives the driven shaft and the brush to rotate, and the brush scrapes the lower surface of the filter screen, thereby avoiding severe clogging during the filtration process and ensuring that the water can flow normally.

[0013] 2. When in use, this utility model is an economizer header with an anti-clogging filter structure, which is equipped with a vertical pipe, a top cover, a frame plate, a filter screen, a drive shaft and a driven shaft. The drive shaft and the driven shaft can be directly disassembled. After the top cover is removed from the top of the vertical pipe, the frame plate can be directly pulled out from the top of the vertical pipe, which is convenient for replacing the filter screen or cleaning it thoroughly. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 : Overall perspective view of this utility model;

[0016] Figure 2 : Overall sectional view of this utility model;

[0017] Figure 3 Partial perspective view of this utility model;

[0018] Figure 4 The present utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 5 The present utility model Figure 2 Enlarged view of section B in the middle.

[0020] The attached figures are labeled as follows:

[0021] 1. Housing; 2. Vertical pipe; 3. Inlet pipe; 4. Outlet pipe; 5. Top plate; 6. Top cover; 7. Vertical rod; 8. Frame plate; 9. Filter screen; 10. Support frame; 11. Driven shaft; 12. Brush; 13. Motor; 14. Drive shaft; 15. Driven plate; 16. Square groove; 17. Drive plate; 18. Movable groove; 19. Spring; 20. Square rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-5 As shown, an economizer header with an anti-clogging filter structure is disclosed, comprising a housing 1, a vertical pipe 2 fixed to one end of the housing 1, and a water inlet pipe 3 fixed to the bottom end of the vertical pipe 2 away from the housing 1. Several water outlet pipes 4 are fixed at equal intervals on the side wall of the housing 1. A top cover 6 is fixed to the top of the vertical pipe 2. A vertical rod 7 is fixed to the side of the lower surface of the top cover 6. A frame plate 8 is fixed to the bottom end of the vertical rod 7. A filter screen 9 is fixed to the lower surface of the frame plate 8. A driven shaft 11 is rotatably connected to the middle of the lower surface of the frame plate 8 through a bearing. A brush 12 is fixed to the surface of the driven shaft 11, and the bristles of the brush 12 are in contact with the lower surface of the filter screen 9. A motor 13 is fixed to the lower surface of the vertical pipe 2. A drive shaft 14 is fixed to the top output end of the motor 13. A linkage component is provided at the top end of the drive shaft 14 and the bottom end of the driven shaft 11. The drive shaft 14 drives the driven shaft 11 to rotate through the linkage component.

[0024] A support frame 10 is fixed inside the vertical pipe 2, and the support frame 10 is located between the water inlet pipe 3 and the box body 1. The lower surface of the frame plate 8 is in contact with the support frame 10.

[0025] In this embodiment, the filter screen 9 is made of corrosion-resistant metal mesh, and the support frame 10 provides support for the frame plate 8. When the filter screen 9 is fixed on the lower surface of the frame plate 8, the filter screen 9 is clamped between the frame plate 8 and the support frame 10, which increases the stability of the filter screen 9.

[0026] The linkage assembly includes an active plate 17 fixed to the top of the active shaft 14 and a driven plate 15 fixed to the bottom of the driven shaft 11. A square groove 16 is provided in the middle of the lower surface of the driven plate 15, and a movable groove 18 is provided in the middle of the upper surface of the active plate 17. A spring 19 is fixed to the bottom wall of the movable groove 18, and a square rod 20 is fixed to the top of the spring 19. The square rod 20 is slidably connected to the movable groove 18, and the top of the square rod 20 is inserted into the square groove 16.

[0027] In this embodiment, the motor 13 is a geared motor. When the square rod 20 is inserted into the square groove 16, it can transmit torque. When the motor 13 drives the drive shaft 14 to rotate, the drive plate 17 located at the top of the drive shaft 14 drives the square rod 20 to rotate. The square rod 20 then drives the driven plate 15 to rotate, thereby realizing the rotation of the driven shaft 11. The driven shaft 11 drives the brush 12 to rotate, and the brush 12 scrapes the lower surface of the filter screen 9 to prevent the filter screen 9 from clogging.

[0028] The brush 12 is fixedly connected to the driven shaft 11 by bolts. Therefore, the brush 12 can be disassembled and replaced.

[0029] The top plate 5 is fixed to the top of the vertical pipe 2, and the top cover 6 is fixed to the upper surface of the top plate 5 by bolts.

[0030] The top cover 6 can be removed from the top plate 5. When removing the top cover 6, the frame plate 8 is pulled out from the inside of the vertical tube 2 by the vertical rod 7, thereby taking out the driven shaft 11 and the brush 12, which makes it easy to replace the brush 12 or thoroughly clean the filter screen 9.

[0031] When the top cover 6 is reinstalled, the frame plate 8 is inserted into the vertical tube 2. At this time, the square rod 20 on the surface of the active plate 17 may not be able to fit into the square groove 16 on the lower surface of the driven plate 15. Therefore, the square rod 20 will be squeezed back into the movable groove 18 by the driven plate 15. At this time, the motor 13 can be started to drive the active shaft 14 to rotate. When the active plate 17 drives the square rod 20 to rotate and the square rod 20 is just aligned with the square groove 16, the spring 19 will squeeze the square rod 20 into the square groove 16, thereby ensuring that the torque can be stably transmitted during subsequent use.

[0032] An annular groove is formed on the upper surface of the top plate 5, and a sealing ring is engaged inside the annular groove. The sealing ring can increase the sealing between the top plate 5 and the top cover 6.

[0033] Working principle: When water enters the vertical pipe 2 from the inlet pipe 3, it is filtered by the filter screen 9. The filtered water then enters the housing 1 and finally enters the economizer from the outlet pipe 4. During this process, the motor 13 drives the drive shaft 14 to rotate, and the square rod 20 on the top drive plate 17 drives the driven plate 15 to rotate, thereby driving the driven shaft 11 and the brush 12 to rotate. The brush 12 cleans the filter screen 9 to prevent it from becoming clogged.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An economizer header with an anti-clogging filter structure, comprising a housing (1), characterized in that: A vertical pipe (2) is fixed to one end of the box (1), and a water inlet pipe (3) is fixed to the bottom end of the vertical pipe (2) on the side away from the box (1). Several water outlet pipes (4) are fixed at equal intervals on the side wall of the box (1). A top cover (6) is fixed to the top of the vertical pipe (2). A vertical rod (7) is fixed to the side of the lower surface of the top cover (6). A frame plate (8) is fixed to the bottom end of the vertical rod (7), and a filter screen (9) is fixed to the lower surface of the frame plate (8). A filter screen (9) is installed in the middle of the lower surface of the frame plate (8). A driven shaft (11) is rotatably connected to the bearing. A brush (12) is fixed on the surface of the driven shaft (11), and the bristles of the brush (12) are in contact with the lower surface of the filter screen (9). A motor (13) is fixed on the lower surface of the vertical tube (2). A drive shaft (14) is fixed at the top output end of the motor (13). A linkage component is set together at the top end of the drive shaft (14) and the bottom end of the driven shaft (11). The drive shaft (14) drives the driven shaft (11) to rotate through the linkage component.

2. The economizer header with an anti-clogging filter structure according to claim 1, characterized in that: The vertical pipe (2) has a support frame (10) fixed inside, and the support frame (10) is located between the water inlet pipe (3) and the box (1). The lower surface of the frame plate (8) is in contact with the support frame (10).

3. The economizer header with an anti-clogging filter structure according to claim 1, characterized in that: The linkage assembly includes an active plate (17) fixed to the top of the active shaft (14) and a driven plate (15) fixed to the bottom of the driven shaft (11). A square groove (16) is provided in the middle of the lower surface of the driven plate (15), and a movable groove (18) is provided in the middle of the upper surface of the active plate (17). A spring (19) is fixed in the bottom wall of the movable groove (18), and a square rod (20) is fixed in the top of the spring (19). The square rod (20) is slidably connected to the movable groove (18), and the top of the square rod (20) is inserted into the square groove (16).

4. The economizer header with an anti-clogging filter structure according to claim 1, characterized in that: The brush (12) is fixedly connected to the driven shaft (11) by bolts.

5. An economizer header with an anti-clogging filter structure according to claim 1, characterized in that: The top of the vertical pipe (2) is fixed with a top plate (5), and the top cover (6) is fixed to the upper surface of the top plate (5) by bolts.

6. An economizer header with an anti-clogging filter structure according to claim 5, characterized in that: The top plate (5) has an annular groove on its upper surface, and a sealing ring is engaged inside the annular groove.

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