Novel guard plate of fluidized bed boiler

Abstract

The utility model belongs to the technical field of fluidized bed boilers, and particularly relates to a novel guard plate of a fluidized bed boiler, which comprises a first guard plate and a second guard plate, one side of the outside of the first guard plate is fixedly connected with a first mounting plate, and one side of the outside of the second guard plate is fixedly connected with a second mounting plate; the utility model provides a novel guard plate of a fluidized bed boiler, and solves the problems that the guard plate of the fluidized bed boiler in the prior art is relatively large in size and relatively large in occupied space, is very inconvenient to transport and carry, can be safely transported by virtue of large transportation equipment, and is inconvenient to transport. When the boiler protecting plate is installed outside the boiler, due to the fact that the size is large, manpower is consumed, a plurality of groups of protecting plates are generally fixed in a welding mode when spliced and assembled, operation is difficult, gaps are prone to being reserved if operation is improper, sealing performance of the protecting plates is affected, cold air leaks in when the boiler operates at negative pressure, and soot leaks when the boiler operates at positive pressure. And the operation cost of coal consumption, power consumption and the like is increased.

Description

Technical Field

[0001] The utility model belongs to the field of fluidized bed boilers, in particular to a new type of guard plate for fluidized bed boilers. Background Art

[0002] Fluidized bed boiler guard plate refers to a protective component installed inside the fluidized bed boiler to protect the heat exchange surface of the boiler from erosion and wear by high temperature, high pressure and particulate matter.

[0003] The fluidized bed boiler guard plates in the prior art are large in size and take up a lot of space, which is very inconvenient during transportation and handling. They need to be safely transported with the help of large-scale transportation equipment, and are very labor-intensive to install on the outside of the boiler due to their large size. Multiple sets of guard plates are generally fixed by welding when they are spliced ​​and assembled, which is not only difficult to operate, but also prone to leaving gaps if not operated properly, thereby affecting the sealing of the guard plates, causing cold air to leak in when the boiler is running at negative pressure, and soot to leak when running at positive pressure, thereby increasing operating costs such as coal consumption and electricity consumption. Utility Model Content

[0004] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a new type of guard plate for a fluidized bed boiler.

[0005] The technical solution of the utility model is as follows: a new type of guard plate for a fluidized bed boiler, comprising a first guard plate and a second guard plate, wherein a first mounting plate is fixedly connected to an outer side of the first guard plate, a second mounting plate is fixedly connected to an outer side of the second guard plate, the first mounting plate and the second mounting plate are detachably connected, and both inner sides of the first mounting plate and the second mounting plate are symmetrically provided with disassembly and assembly components and linkage components;

[0006] The disassembly and assembly assembly includes a rotating shaft and a transmission unit. The rotating shaft is rotatably connected to both sides of the interior of the first mounting plate. One end of the rotating shaft extends to the outside of the first mounting plate and is fixedly connected to a limit plate. Both sides of the interior of the second mounting plate are provided with slots that match the limit plate. One side of the interior of the second mounting plate is slidably connected to a sealing strip. One side of the interior of the first mounting plate is provided with a sealing groove that matches the sealing strip. The rotating shaft can be rotated by the transmission unit.

[0007] As a preferred embodiment, the transmission unit includes a rotating rod, which is rotatably connected to the inside of the first mounting plate, and both sides of the rotating rod are fixedly connected to the first bevel gear, and one end of the two rotating shafts inside the first mounting plate is fixedly connected to the second bevel gear, and the first bevel gear is meshingly connected with the second bevel gear.

[0008] As a preferred embodiment, the linkage assembly includes a slide groove, which is opened on one side of the interior of the second mounting plate, and the interior of the slide groove is slidably connected with a slide shaft, one end of the slide shaft extends to the outside of the second mounting plate and cooperates with the rotating plate, the interior of the slide groove and one end of the slide shaft is slidably connected with a push rod, a spring is provided on the outside of the push rod and inside the slide groove, a slider is slidably connected to the side of the interior of the second mounting plate close to the slide groove, the slider is fixedly connected to the sealing strip, and the interior of the slider is provided with an inclined groove that cooperates with the push rod.

[0009] As a preferred embodiment, one end of the rotating rod extends to the outside of the first mounting plate and is fixedly connected to a rotating plate, an inner side of the rotating plate is threadedly connected to a bolt, and an outer side of the second mounting plate is provided with a threaded hole matching the bolt.

[0010] As a preferred implementation, the sealing strip is made of ceramic fiber material.

[0011] As a preferred implementation, both the first guard plate and the second guard plate are composed of a plurality of right-angle plate structures.

[0012] The beneficial effects of the utility model are as follows:

[0013] The device improves the convenience during transportation by using the connectable first guard plate and the second guard plate, and the first guard plate and the second guard plate composed of a plurality of right-angle plate structures are easy to stack, which saves the space occupied during transportation to the greatest extent. When needed, the limiting plate can be driven to rotate by rotating the rotating plate, so that the limiting plate rotates to the bottom of the card slot and cooperates with the card slot to limit the first mounting plate and the second mounting plate. The structure is simple, and installation and disassembly are quick and convenient. After the rotating plate is rotated, the linkage component can be cooperated to extrude the sealing strip, thereby improving the sealing between the first guard plate and the second guard plate after splicing and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a three-dimensional diagram of the first mounting plate and the second mounting plate in the utility model;

[0017] Figure 3 This is a sectional view before installation of the utility model;

[0018] Figure 4 It is a cross-sectional view of the utility model after installation;

[0019] Figure 5It is a cross-sectional view of the second mounting plate in the utility model;

[0020] Figure 6 It is a cross-sectional view of the slider in the utility model;

[0021] Figure 7 For the utility model Figure 3 Enlarged view of point A in the middle.

[0022] In the figure: 1. first guard plate; 2. second guard plate; 3. first mounting plate; 4. second mounting plate; 5. rotating shaft; 6. limiting plate; 7. slot; 8. sealing strip; 9. sealing slot; 10. rotating rod; 11. first bevel gear; 12. second bevel gear; 13. rotating plate; 14. slide slot; 15. sliding shaft; 16. push rod; 17. spring; 18. slider; 19. inclined slot; 20. bolt; 21. threaded hole. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] See also Figure 1-7 A novel guard plate for a fluidized bed boiler comprises a first guard plate 1 and a second guard plate 2, wherein a first mounting plate 3 is fixedly connected to an outer side of the first guard plate 1, and a second mounting plate 4 is fixedly connected to an outer side of the second guard plate 2, the first mounting plate 3 and the second mounting plate 4 are detachably connected, and both inner sides of the first mounting plate 3 and the second mounting plate 4 are symmetrically provided with disassembly and assembly components and linkage components;

[0025] The disassembly and assembly components include a rotating shaft 5 and a transmission unit. The rotating shaft 5 is rotatably connected to the inner sides of the first mounting plate 3. One end of the rotating shaft 5 extends to the outer side of the first mounting plate 3 and is fixedly connected to a limiting plate 6. Both sides of the inner side of the second mounting plate 4 are provided with card grooves 7 that match the limiting plate 6. One side of the inner side of the second mounting plate 4 is slidably connected with a sealing strip 8. One side of the inner side of the first mounting plate 3 is provided with a sealing groove 9 that matches the sealing strip 8. The rotating shaft 5 can be rotated through the transmission unit.

[0026] Specifically, the transmission unit includes a rotating rod 10, which is rotatably connected to the inside of the first mounting plate 3, and the first bevel gear 11 is fixedly connected to both sides of the rotating rod 10. One end of the two rotating shafts 5 located inside the first mounting plate 3 is fixedly connected to the second bevel gear 12, and the first bevel gear 11 is meshed with the second bevel gear 12. The linkage assembly includes a slide groove 14, which is opened on one side of the inside of the second mounting plate 4, and a sliding shaft 15 is slidably connected to the inside of the slide groove 14. One end of the sliding shaft 15 extends to the outside of the second mounting plate 4 and cooperates with the rotating plate 13. A push rod 16 is slidably connected to the inside of the slide groove 14 and located at one end of the sliding shaft 15. A spring 17 is provided on the outside of the push rod 16 and located inside the slide groove 14. A slider 18 is slidably connected to one side of the inside of the second mounting plate 4 close to the slide groove 14. The slider 18 is fixedly connected to the sealing strip 8, and an inclined groove 19 cooperating with the push rod 16 is opened inside the slider 18.

[0027] When the first guard plate 1 and the second guard plate 2 are to be spliced ​​and installed, the first mounting plate 3 and the second mounting plate 4 are brought close to each other, and then the plurality of limit plates 6 are inserted into the corresponding slots 7, and the external rotating plate 13 is rotated to drive the internal rotating rod 10 and the corresponding first bevel gear 11 to rotate. The first bevel gear 11 then drives the corresponding second bevel gear 12 to rotate through the meshing relationship, so that the second bevel gear 12 drives the limit plate 6 to rotate through the rotating shaft 5, and the limit plate 6 is rotated to the bottom of the slot 7, so that the second mounting plate 4 is limited by the limit plate 6. At the same time, after the rotation of the rotating plate 13 is completed, the sliding shaft 15 can be pushed into the inside of the sliding groove 14 through the arc surface of the sliding shaft 15, so that the sliding shaft 15 pushes the push rod 16 into the inside of the slider 18, and at the same time squeezes the spring 17 to cause the spring 17 to deform. When the push rod 16 moves to the inside of the slider 18, the slider 18 can be squeezed toward one side of the sealing strip 8 through the inclined groove 19 in the slider 18, and then the slider 18 is The block 18 squeezes the sealing strip 8 into the sealing groove 9 so that the sealing strip 8 fills the sealing groove 9, thereby achieving the purpose of improving the sealing effect between the first mounting plate 3 and the second mounting plate 4, and then tightens the bolt 20 on the inner side of the rotating plate 13 to the inside of the threaded hole 21 to complete the splicing and assembly between the first guard plate 1 and the second guard plate 2. The device improves the convenience during transportation through the splicable first guard plate 1 and the second guard plate 2, and the first guard plate 1 and the second guard plate 2 composed of a plurality of right-angle plate structures are easy to stack, which saves the space occupied during transportation to the greatest extent. When needed, the limiting plate 6 can be driven to rotate by rotating the rotating plate 13, so that the limiting plate 6 rotates to the bottom of the card slot 7 and cooperates with the card slot 7 to limit the first mounting plate 3 and the second mounting plate 4. The structure is simple, and the installation and disassembly are quick and convenient. After the rotating plate 13 is rotated, the linkage component can be cooperated to squeeze the sealing strip 8, thereby improving the sealing between the first guard plate 1 and the second guard plate 2 after splicing and installation.

[0028] Specifically, one end of the rotating rod 10 extends to the outside of the first mounting plate 3 and is fixedly connected to a rotating plate 13. A bolt 20 is threadedly connected to the inner side of the rotating plate 13. A threaded hole 21 matching the bolt 20 is provided on the outer side of the second mounting plate 4. The sealing strip 8 is made of ceramic fiber material, and the first guard plate 1 and the second guard plate 2 are both composed of multiple right-angle plate structures.

[0029] Through the above technical scheme, the sealing strip 8 made of ceramic fiber material has excellent high temperature resistance and wear resistance, thereby effectively improving the sealing between the first guard plate 1 and the second guard plate 2, and improving the service life in the high temperature environment of the boiler. The first guard plate 1 and the second guard plate 2 and their internal disassembly and assembly components are provided in multiple groups, and can be increased or reduced according to actual conditions, and the disassembly and assembly method and working principle are the same as the above method.

[0030] When in use, when it is necessary to splice and install the first guard plate 1 and the second guard plate 2, the first mounting plate 3 is brought close to the second mounting plate 4, and then multiple sets of limit plates 6 are inserted into the corresponding slots 7, and the external rotating plate 13 is rotated to drive the internal rotating rod 10 and the corresponding first bevel gear 11 to rotate. The first bevel gear 11 then drives the corresponding second bevel gear 12 to rotate through the meshing relationship, so that the second bevel gear 12 drives the limit plate 6 to rotate through the rotating shaft 5, and the limit plate 6 is rotated to the bottom of the slot 7, so that the second mounting plate 4 is limited by the limit plate 6, and at the same time, the rotating plate After the rotation of 13 is completed, the sliding shaft 15 can be pushed into the inside of the sliding groove 14 through the arc surface of the sliding shaft 15, so that the sliding shaft 15 pushes the push rod 16 into the inside of the slider 18, and at the same time squeezes the spring 17 to deform the spring 17. When the push rod 16 moves to the inside of the slider 18, the slider 18 can be squeezed toward one side of the sealing strip 8 through the inclined groove 19 in the slider 18, and then the sealing strip 8 is squeezed into the inside of the sealing groove 9 through the slider 18, so that the sealing strip 8 fills the sealing groove 9, thereby achieving the purpose of improving the sealing effect between the first mounting plate 3 and the second mounting plate 4, and then the rotating plate 1 is rotated. The bolt 20 on the inner side of the 3 is tightened into the inside of the threaded hole 21 to complete the splicing and assembly between the first guard plate 1 and the second guard plate 2. The device improves the convenience of transportation through the spliced ​​first guard plate 1 and the second guard plate 2, and the first guard plate 1 and the second guard plate 2 composed of a right-angle plate structure are easy to stack, which saves the space occupied during transportation to the greatest extent. When it is needed, the limiting plate 6 can be driven to rotate by rotating the rotating plate 13, so that the limiting plate 6 rotates to the bottom of the card slot 7 and cooperates with the card slot 7 to limit the first mounting plate 3 and the second mounting plate 4. The structure is simple and easy to install and disassemble. It is quick and convenient, and after the rotating plate 13 rotates, the linkage component can be used to extrude the sealing strip 8, thereby improving the sealing between the first guard plate 1 and the second guard plate 2 after splicing and installation. The sealing strip 8 made of ceramic fiber material has excellent high temperature resistance and wear resistance, thereby effectively improving the sealing between the first guard plate 1 and the second guard plate 2, and improving the service life in the high temperature environment of the boiler. The first guard plate 1 and the second guard plate 2 and the disassembly and assembly components inside them are provided with multiple groups, and can be increased or reduced according to actual conditions, and the disassembly and assembly method and working principle are the same as the above method.

[0031] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0033] 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 novel guard plate for a fluidized bed boiler, comprising a first guard plate (1) and a second guard plate (2), characterized in that: A first mounting plate (3) is fixedly connected to an outer side of the first guard plate (1), and a second mounting plate (4) is fixedly connected to an outer side of the second guard plate (2); the first mounting plate (3) and the second mounting plate (4) are detachably connected, and disassembly and assembly components and linkage components are symmetrically arranged on both inner sides of the first mounting plate (3) and the second mounting plate (4); The disassembly and assembly component comprises a rotating shaft (5) and a transmission unit. The rotating shaft (5) is rotatably connected to two sides of the interior of the first mounting plate (3). One end of the rotating shaft (5) extends to the exterior of the first mounting plate (3) and is fixedly connected to a limit plate (6). Both sides of the interior of the second mounting plate (4) are provided with a clamping groove (7) that matches the limit plate (6). One side of the interior of the second mounting plate (4) is slidably connected to a sealing strip (8). One side of the interior of the first mounting plate (3) is provided with a sealing groove (9) that matches the sealing strip (8). The rotating shaft (5) can be rotated by the transmission unit.

2. The novel guard plate for a fluidized bed boiler according to claim 1 is characterized in that: The transmission unit comprises a rotating rod (10), the rotating rod (10) being rotatably connected to the inside of the first mounting plate (3), both sides of the rotating rod (10) being fixedly connected to first bevel gears (11), one end of the two rotating shafts (5) located inside the first mounting plate (3) being fixedly connected to second bevel gears (12), and the first bevel gear (11) being meshingly connected to the second bevel gear (12).

3. The novel guard plate for a fluidized bed boiler according to claim 2 is characterized in that: The linkage assembly comprises a slide groove (14), wherein the slide groove (14) is provided on one side of the interior of the second mounting plate (4), wherein the interior of the slide groove (14) is slidably connected to a slide shaft (15), wherein one end of the slide shaft (15) extends to the outside of the second mounting plate (4) and cooperates with the rotating plate (13), wherein the interior of the slide groove (14) and one end of the slide shaft (15) is slidably connected to a push rod (16), wherein the exterior of the push rod (16) and the interior of the slide groove (14) is provided with a spring (17), wherein the interior of the second mounting plate (4) and the side close to the slide groove (14) is slidably connected to a slider (18), wherein the slider (18) is fixedly connected to the sealing strip (8), and wherein the interior of the slider (18) is provided with an inclined groove (19) which cooperates with the push rod (16).

4. The novel guard plate for a fluidized bed boiler according to claim 3 is characterized in that: One end of the rotating rod (10) extends to the outside of the first mounting plate (3) and is fixedly connected to a rotating plate (13); a bolt (20) is threadedly connected to an inner side of the rotating plate (13); and a threaded hole (21) matching the bolt (20) is formed on an outer side of the second mounting plate (4).

5. The novel guard plate for a fluidized bed boiler according to claim 1 is characterized in that: The sealing strip (8) is made of ceramic fiber material.

6. The novel guard plate for a fluidized bed boiler according to claim 1, characterized in that: The first guard plate (1) and the second guard plate (2) are both composed of a plurality of right-angle plate structures.

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