Circulating fluidized bed boiler center cylinder

Abstract

The utility model belongs to the technical field of circulating fluidized bed boiler center cylinder equipment, and particularly relates to a circulating fluidized bed boiler center cylinder which comprises an arc plate, a circular plate is fixedly connected to the upper end of the surface of the arc plate, a protection plate is movably connected to the surface side of the arc plate, and an anti-expansion ring is fixedly connected to the right end of the surface side of the protection plate. An operator inserts a plurality of groups of arc plates into insertion grooves through insertion rods and installs protection plates and anti-packing rings on the arc plates, the protection plates and the anti-packing rings penetrate through stop blocks through through grooves, meanwhile, a pull plate is swung to extrude a spring to drive a movable block to contract, the protection plates and the anti-packing rings are rotated to enable the stop blocks to be inserted into installation grooves, and the stop blocks are installed in the installation grooves. And when the protection plate and the anti-piston ring need to be taken out, a pulling plate is swung, so that an extrusion spring pops up a movable block, the movable block pops up the protection plate and the anti-piston ring, transportation is facilitated, and when parts are damaged, disassembly is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of central tube equipment of a circulating fluidized bed boiler, in particular to a central tube of a circulating fluidized bed boiler. Background Art

[0002] The high-temperature flue gas in the circulating fluidized bed boiler enters at high speed through the separator cutout and rotates between the center cylinder and the separator. The rotation generates centrifugal force, causing most of the fly ash particles to hit the inner wall of the separator and fall down, while the high-temperature flue gas flows out through the center cylinder, thereby achieving the purpose of separating fly ash and flue gas.

[0003] The existing technology has the following problems: the existing boiler center tube is large in size and inconvenient to transport; the boiler center tube is damaged after long-term use and needs to be replaced as a whole, which is costly. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a central tube of a circulating fluidized bed boiler, which solves the current transportation and replacement problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a central cylinder of a circulating fluidized bed boiler, comprising an arc plate, the upper end of the surface of the arc plate is fixedly connected to the circular plate, the surface side of the arc plate is movably connected to a protective plate, the right end of the surface side of the protective plate is fixedly connected to an anti-expansion ring, the left end of the surface side of the arc plate is provided with a slot, the left end of the surface side of the arc plate is fixedly connected to a plug rod, the lower end of the inner surface of the protective plate is provided with a mounting groove, the upper end of the inner part of the protective plate is provided with a through groove, the lower end of the inner part of the protective plate is provided with a sliding groove, the upper end of the inner part of the sliding groove is movably connected to a sliding wheel, the left end of the surface side of the arc plate is fixedly connected to a stop block, the upper end of the inner part of the stop block is movably connected to a movable block, the lower end of the inner part of the movable block is fixedly connected to a spring, the lower end of the surface of the movable block is fixedly connected to a pull rod, the lower end of the surface side of the pull rod is fixedly connected to a pull ring, and the lower end of the surface of the pull ring is fixedly connected to the pull plate.

[0006] As a preferred technical solution of the utility model, a pull rope is provided at the lower end of the surface of the pull rod, and a pull ring is fixedly connected to the lower end of the surface of the pull rope.

[0007] As a preferred technical solution of the utility model, the size of the through groove is matched with the size of the stop block.

[0008] As a preferred technical solution of the utility model, there are multiple groups of sliding wheels, and the multiple groups of sliding wheels surround each other with the distribution center of the protection plate.

[0009] As a preferred technical solution of the utility model, the size of the slot is matched with the size of the insertion rod.

[0010] As a preferred technical solution of the present utility model, a protective layer is provided inside the arc plate 1 .

[0011] As a preferred technical solution of the utility model, a movable block is fixedly connected to the upper end of the surface of the spring, and a stop block is fixedly connected to the lower end of the surface of the spring.

[0012] Compared with the prior art, the utility model provides a central tube of a circulating fluidized bed boiler, which has the following beneficial effects:

[0013] The operator inserts multiple groups of arc plates into the slots through the insertion rods, installs the protective plates and anti-expansion rings on the arc plates, and the protective plates and anti-expansion rings pass through the stop blocks through the through slots. At the same time, the pull plate is swung to squeeze the spring to drive the movable block to contract, and the protective plates and anti-expansion rings are rotated to insert the stop blocks into the installation slots to fix the arc plates. When the protective plates and anti-expansion rings need to be taken out, the pull plate is swung to make the squeezing springs pop out the movable blocks, and the movable blocks pop out the protective plates and anti-expansion rings, which is convenient for transportation. When the parts are damaged, they can be disassembled conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the appearance of the arc plate of this utility model;

[0016] Figure 3 This is a schematic diagram of the appearance and structure of the practical anti-expansion ring;

[0017] Figure 4 This is a schematic diagram of the structure behind the practical protective plate;

[0018] Figure 5 This is an enlarged schematic diagram of the structure of the practical activity block;

[0019] Figure 6 This is an enlarged schematic diagram of the practical spring structure.

[0020] In the figure: 1. arc plate; 2. round plate; 3. anti-expansion ring; 4. stop block; 5. slot; 6. plug rod; 7. protective plate; 8. mounting slot; 9. through slot; 10. sliding slot; 11. sliding wheel; 12. movable block; 13. spring; 14. pull rod; 15. pull ring; 16. pull plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-6 In this embodiment: a central cylinder of a circulating fluidized bed boiler comprises an arc plate 1, a circular plate 2 is fixedly connected to the upper end of the surface of the arc plate 1 to fix the parts, a protective plate 7 is movably connected to the surface side of the arc plate 1 to ensure that the whole will not explode during use, an anti-expansion ring 3 is fixedly connected to the right end of the surface side of the protective plate 7 to further fix the whole, a slot 5 is provided at the left end of the surface side of the arc plate 1 to facilitate the assembly of parts, a plug rod 6 is fixedly connected to the left end of the surface side of the arc plate 1 to facilitate the installation of parts, an installation groove 8 is provided at the lower end of the inner surface of the protective plate 7 to enhance the overall practicality, a through groove 9 is provided at the upper end of the inner part of the protective plate 7 to facilitate disassembly and assembly, and the inner surface of the protective plate 7 A sliding groove 10 is provided at the lower end of the part to prevent the parts from being worn during use. The inner upper end of the sliding groove 10 is movably connected with a sliding wheel 11 to ensure the overall sliding performance. A stop block 4 is fixedly connected to the left end of the surface side of the arc plate 1 for support. The inner upper end of the stop block 4 is movably connected with a movable block 12 to support the parts. The inner lower end of the movable block 12 is fixedly connected with a spring 13 to enhance the overall convenience. A pull rod 14 is fixedly connected to the lower end of the surface of the movable block 12 to enhance the overall practicality. A pull ring 15 is fixedly connected to the lower end of the surface side of the pull rod 14 to protect the parts. The pull plate 16 is fixedly connected to the lower end of the surface of the pull ring 15 for easy operation.

[0023] In this embodiment, a pull rope is provided at the lower end of the surface of the pull rod 14, and a pull ring 15 is fixedly connected to the lower end of the surface of the pull rope, and these structures are used to perform mechanical movement together to reduce the labor of the operator; the size of the through groove 9 is compatible with the size of the stop block 4, so as to ensure that the overall device can minimize the possible failure during operation; there are multiple groups of sliding wheels 11, and the multiple groups of sliding wheels 11 surround each other with the distribution center of the protective plate 7, and with the help of strengthening the flexible control ability of the overall device, the probability of failure of the overall device during use is weakened; the size of the slot 5 is compatible with the size of the plug rod 6, and these structures are used to perform mechanical movement together, so as to ensure that the overall device can minimize the possible failure during operation; a protective layer is provided inside the arc plate 1 to ensure the overall use strength and avoid damage; the upper end of the surface of the spring 13 is fixedly connected with a movable block 12, and the lower end of the surface of the spring 13 is fixedly connected with a stop block 4, which enhances the coordination performance of the overall device during use and enhances the durability of the overall device during use.

[0024] The working principle and use process of the utility model are as follows: the operator inserts multiple groups of arc plates 1 into the slots 5 through the insertion rods 6, installs the protective plate 7 and the anti-expansion ring 3 on the arc plate 1, and the protective plate 7 and the anti-expansion ring 3 pass through the stop block 4 through the through slot 9, and at the same time swings the pull plate 16 to squeeze the spring 13 to drive the movable block 12 to contract, rotates the protective plate 7 and the anti-expansion ring 3 to insert the stop block 4 into the installation slot 8, and fixes the arc plate 1. When the protective plate 7 and the anti-expansion ring 3 need to be taken out, the pull plate 16 is swung to make the squeezing spring 13 pop out the movable block 12, and the movable block 12 pops out the protective plate 7 and the anti-expansion ring 3.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A central tube of a circulating fluidized bed boiler, comprising an arc plate (1), characterized in that: The upper end of the surface of the arc plate (1) is fixedly connected to a circular plate (2), the surface side of the arc plate (1) is movably connected to a protective plate (7), the right end of the surface side of the protective plate (7) is fixedly connected to an anti-expansion ring (3), the left end of the surface side of the arc plate (1) is provided with a slot (5), the left end of the surface side of the arc plate (1) is fixedly connected to a plug rod (6), the lower end of the inner surface of the protective plate (7) is provided with a mounting groove (8), the upper end of the inner surface of the protective plate (7) is provided with a through groove (9), and the lower end of the inner surface of the protective plate (7) is provided with a sliding groove (10), the inner upper end of the sliding groove (10) is movably connected to a sliding wheel (11), the left end of the surface side of the arc plate (1) is fixedly connected to a stop block (4), the inner upper end of the stop block (4) is movably connected to a movable block (12), the inner lower end of the movable block (12) is fixedly connected to a spring (13), the lower end of the surface of the movable block (12) is fixedly connected to a pull rod (14), the lower end of the surface side of the pull rod (14) is fixedly connected to a pull ring (15), and the lower end of the surface of the pull ring (15) is fixedly connected to a pull plate (16).

2. The central tube of a circulating fluidized bed boiler according to claim 1, characterized in that: A pull rope is provided at the lower end of the surface of the pull rod (14), and a pull ring (15) is fixedly connected to the lower end of the surface of the pull rope.

3. The central tube of a circulating fluidized bed boiler according to claim 1, characterized in that: The size of the through groove (9) is matched with the size of the stop block (4).

4. The central tube of a circulating fluidized bed boiler according to claim 1, characterized in that: The number of the sliding wheels (11) is multiple, and the multiple sliding wheels (11) surround each other with the protection plate (7) distributed at the center.

5. The central tube of a circulating fluidized bed boiler according to claim 1, characterized in that: The size of the slot (5) is compatible with the size of the insertion rod (6).

6. The central tube of a circulating fluidized bed boiler according to claim 1, characterized in that: A protective layer is arranged inside the circular arc plate (1).

7. The central tube of a circulating fluidized bed boiler according to claim 1, characterized in that: The upper end of the surface of the spring (13) is fixedly connected to a movable block (12), and the lower end of the surface of the spring (13) is fixedly connected to a stop block (4).

Images