Vertical heat removal fluidized bed

Abstract

The utility model discloses a vertical heat removal fluidized bed which comprises a dense-phase fluidized bed, a cover plate is arranged at the top of the dense-phase fluidized bed, a locking assembly is arranged between the cover plate and the dense-phase fluidized bed, so that the cover plate is connected with the dense-phase fluidized bed, a plurality of square holes are formed in the top of the cover plate, and convex blocks are arranged in the square holes. A through groove is formed in the top of the protruding block, a heat exchange tube bundle is fixedly connected into the through groove, the heat exchange tube bundle extends into the dense-phase fluidized bed, and the heat exchange tube bundle is distributed in a vertical state. According to the utility model, a worker can conveniently disassemble the damaged heat exchange tube bundle, the use effect of the fluidized bed is improved, meanwhile, the heat exchange tube bundle is vertically distributed, so that the vertical heat extraction of the fluidized bed can be realized, and the cover plate can be prevented from rotating in the use process of the dense-phase fluidized bed, so that the service life of the dense-phase fluidized bed is prolonged. The use stability of the fluidized bed is improved, the fluidized bed has good sealing performance, and the sealing effect of the fluidized bed is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of petrochemical industry, in particular to a vertical heat extraction fluidized bed. Background Art

[0002] A fluidized bed is a reactor that uses gas or liquid to pass through a granular solid layer to put the solid particles into a suspended motion state and carry out a gas-solid phase reaction process or a liquid-solid phase reaction process.

[0003] After searching, the Chinese patent with the announcement number CN203928823U discloses a fluidized bed external heat exchanger, which is characterized in that the external heat exchanger is operated in a deep bed layer, and one or more tubular gas distributors are arranged between the upper part of the mainstream fluidized air distributor, the heat exchange tube bundle and the inner wall of the heat exchanger to improve the fluidization quality of the dense phase bed and increase the heat extraction load of the external heat exchanger. However, there are still the following defects: when the heat exchange tube bundle is damaged, it is not convenient to disassemble the heat exchange tube bundle, resulting in certain limitations. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a vertical heat extraction fluidized bed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A vertical heat extraction fluidized bed comprises a dense fluidized bed, a cover plate is provided on the top of the dense fluidized bed, a locking assembly is provided between the cover plate and the dense fluidized bed to connect the cover plate to the dense fluidized bed, a plurality of square holes are provided on the top of the cover plate, a plurality of protrusions are provided in the square holes, a through groove is provided on the top of the protrusion, a heat exchange tube bundle is fixedly connected in the through groove, and the heat exchange tube bundle extends into the dense fluidized bed, the heat exchange tube bundle is distributed in a vertical state, a slider is fixedly connected to the bottom of the heat exchange tube bundle, a fixed frame is fixedly connected in the dense fluidized bed, a plurality of slide grooves are provided on the top of the fixed frame, the slider moves along the groove direction of the slide groove, a clamping plate is fixedly connected to the bottom of the slider, and the clamping plate is clamped with the fixed frame.

[0007] As a further scheme of the utility model, the locking assembly includes a plurality of connecting blocks, and the plurality of connecting blocks are evenly fixedly connected to the circumferential outer wall of the dense fluidized bed, and a plurality of connecting blocks are provided with a card slot at the bottom, and a plurality of telescopic rods are fixedly connected to the circumferential outer wall of the cover plate, and one end of the telescopic parts of two adjacent telescopic rods is fixedly connected to a fixed block, and a threaded hole is provided on the top of the fixed block, and a threaded rod is threadedly connected in the threaded hole, and a card block is rotatably connected to the bottom end of the threaded rod, and the card block is carded in the card slot, and a avoidance groove connected to the card slot is provided on one side of the plurality of connecting blocks to avoid the threaded rod.

[0008] As a further solution of the utility model, the top end of the threaded rod is fixedly connected with a knob for rotating the threaded rod.

[0009] As a further solution of the utility model, a guide rod is fixedly connected to the top of the clamping block, and the guide rod passes through the fixed block.

[0010] As a further solution of the utility model, a sealing ring is fixedly connected to the bottom of the cover plate.

[0011] As a further solution of the utility model, the sealing ring is located between the cover plate and the dense phase fluidized bed.

[0012] As a further solution of the utility model, a sealing ring is fixedly connected to the outer side of the protrusion.

[0013] As a further solution of the utility model, the sealing ring is located between the protrusion and the cover plate.

[0014] The beneficial effects of the utility model are:

[0015] 1. Fix the heat exchange tube bundle by clamping the clamping plate and the fixing frame, rotate the cover plate, and the cover plate drives the heat exchange tube bundle to rotate, so that the clamping plate is separated from the fixing frame. At this time, the heat exchange tube bundle can be disassembled, which is convenient for the staff to disassemble the damaged heat exchange tube bundle, thereby improving the use effect of the fluidized bed. At the same time, since the heat exchange tube bundle is vertically distributed, vertical heat extraction of the fluidized bed can be realized.

[0016] 2. By setting the locking assembly, the cover plate and the dense phase fluidized bed are fixed with the locking assembly, so that the cover plate and the dense phase fluidized bed can be stably connected, avoiding the rotation of the cover plate during the use of the dense phase fluidized bed, thereby improving the stability of the fluidized bed.

[0017] 3. Through the coordinated use of the sealing ring and the sealing ring, the sealing ring can seal the gap between the cover plate and the dense phase fluidized bed, and the sealing ring can seal the gap between the protrusion and the cover plate, so that the fluidized bed can have better sealing performance and improve the sealing effect of the fluidized bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a vertical heat extraction fluidized bed proposed by the utility model;

[0019] Figure 2 This is a partial enlarged structural schematic diagram of a vertical heat extraction fluidized bed proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of a fluidized bed of a vertical heat extraction fluidized bed proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the enlarged structure of part A of a vertical heat extraction fluidized bed proposed by the utility model.

[0022] In the figure: 1. heat exchange tube bundle; 2. cover plate; 3. dense phase fluidized bed; 4. sealing ring; 5. sealing ring; 6. protrusion; 7. threaded rod; 8. fixing block; 9. avoidance groove; 10. clamping block; 11. clamping groove; 12. connecting block; 13. telescopic rod; 14. guide rod; 15. fixing frame; 16. clamping plate; 17. slider; 18. slide groove. DETAILED DESCRIPTION

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, so that the embodiments of the application described here, based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0024] Reference Figure 1-Figure 4 A vertical heat extraction fluidized bed comprises a dense phase fluidized bed 3, a cover plate 2 is arranged on the top of the dense phase fluidized bed 3, a locking assembly is arranged between the cover plate 2 and the dense phase fluidized bed 3, so that the cover plate 2 is connected to the dense phase fluidized bed 3, a plurality of square holes are provided on the top of the cover plate 2, a plurality of square holes are provided with protrusions 6, a through groove is provided on the top of the protrusion 6, a heat exchange tube bundle 1 is welded in the through groove, and the heat exchange tube bundle 1 extends into the dense phase fluidized bed 3, the heat exchange tube bundle 1 is distributed in a vertical state, a slider 17 is welded on the bottom of the heat exchange tube bundle 1, a fixing frame 15 is fixed in the dense phase fluidized bed 3 by bolts, a plurality of slide grooves 18 are provided on the top of the fixing frame 15, and the slider 17 moves along the groove of the slide groove 18. The slider 17 is moved, a clamping plate 16 is welded to the bottom of the slider 17, and the clamping plate 16 is clamped with the fixing frame 15, so that the locking assembly no longer fixes the cover plate 2 and the dense phase fluidized bed 3. The cover plate 2 is rotated, and the cover plate 2 drives the heat exchange tube bundle 1 to rotate through the protrusion 6. The heat exchange tube bundle 1 drives the slider 17 to move along the slide groove 18, and the slider 17 drives the clamping plate 16 to move. When the clamping plate 16 moves to be separated from the fixing frame 15, the heat exchange tube bundle 1 can be removed at this time, which is convenient for the staff to disassemble the damaged heat exchange tube bundle 1, thereby improving the use effect of the fluidized bed. At the same time, since the heat exchange tube bundle 1 is vertically distributed, vertical heat extraction of the fluidized bed can be realized.

[0025] The locking assembly includes a plurality of connecting blocks 12, which are uniformly welded to the circumferential outer wall of the dense phase fluidized bed 3. The bottoms of the plurality of connecting blocks 12 are provided with card slots 11. The circumferential outer wall of the cover plate 2 is fixed with a plurality of telescopic rods 13 by bolts. One end of the telescopic portion of two adjacent telescopic rods 13 is fixed with a fixing block 8 by bolts. A threaded hole is provided at the top of the fixing block 8. The threaded rod 7 is threadedly connected to the threaded hole. The bottom end of the threaded rod 7 is rotatably connected with a card block 10, and the card block 10 is carded with the card slot 11. The plurality of connecting blocks 12 are provided with a plurality of telescopic rods 13. The plurality of telescopic rods 13 are fixed with a plurality of fixing blocks 8 by bolts. One side of the connecting block 12 is provided with an avoidance groove 9 connected with the card slot 11, so as to avoid the threaded rod 7. The threaded rod 7 is rotated, and the threaded rod 7 moves downward through the threaded engagement with the threaded hole. The threaded rod 7 drives the card block 10 to move downward, so that the card block 10 is disengaged from the card slot 11 on the connecting block 12, and then the fixed block 8 is pulled to move. The fixed block 8 will lengthen the telescopic rod 13 and move the threaded rod 7 to the outside of the connecting block 12 through the avoidance groove 9. At this time, the cover plate 2 and the dense phase fluidized bed 3 are no longer fixed.

[0026] In the utility model, a knob for rotating the threaded rod 7 is welded to the top of the threaded rod 7, and the threaded rod 7 can be rotated by the knob. A guide rod 14 is welded to the top of the block 10, and the guide rod 14 passes through the fixed block 8. The block 10 will drive the guide rod 14 to move during the movement, so that the fixed block 8 can move vertically. A sealing ring 4 is bonded to the bottom of the cover plate 2, and the sealing ring 4 is located between the cover plate 2 and the dense fluidized bed 3. The sealing ring 4 can seal the gap between the cover plate 2 and the dense fluidized bed 3. A sealing ring 5 is bonded to the outer side of the protrusion 6, and the sealing ring 5 is located between the protrusion 6 and the cover plate 2. The sealing ring 5 can seal the gap between the protrusion 6 and the cover plate 2, so that the fluidized bed can have better sealing performance and improve the sealing effect of the fluidized bed.

[0027] Working principle: when disassembly is required, the threaded rod 7 is rotated, and the threaded rod 7 moves downward through the threaded engagement with the threaded hole, and the threaded rod 7 drives the block 10 to move downward, so that the block 10 is disengaged from the slot 11 on the connecting block 12, and then the fixed block 8 is pulled to move, and the fixed block 8 will lengthen the telescopic rod 13 and make the threaded rod 7 move to the outside of the connecting block 12 through the avoidance groove 9, and then the cover plate 2 is rotated, and the cover plate 2 drives the heat exchange tube bundle 1 to rotate through the protrusion 6, and the heat exchange tube bundle 1 drives the slider 17 to move along the slide groove 18, and the slider 17 drives the card plate 16 to move. When the card plate 16 moves to be disengaged from the fixing frame 15, the heat exchange tube bundle 1 can be removed at this time, which is convenient for the staff to disassemble the damaged heat exchange tube bundle 1, thereby improving the use effect of the fluidized bed. At the same time, since the heat exchange tube bundle 1 is vertically distributed, vertical heat extraction of the fluidized bed can be realized.

[0028] The present invention has been described through the above-mentioned embodiments. Those skilled in the art will appreciate that the present invention is not limited to the above-mentioned embodiments, and more modifications may be made according to the teachings of the present invention. These modifications are all within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A vertical heat extraction fluidized bed, comprising a dense phase fluidized bed (3), characterized in that: A cover plate (2) is provided on the top of the dense-phase fluidized bed (3), a locking assembly is provided between the cover plate (2) and the dense-phase fluidized bed (3), so that the cover plate (2) and the dense-phase fluidized bed (3) are connected, a plurality of square holes are provided on the top of the cover plate (2), a convex block (6) is provided in each of the plurality of square holes, a through groove is provided on the top of the convex block (6), a heat exchange tube bundle (1) is fixedly connected in the through groove, and the heat exchange tube bundle (1) extends into the dense-phase fluidized bed (3), The heat exchange tube bundle (1) is distributed in a vertical state. A slider (17) is fixedly connected to the bottom of the heat exchange tube bundle (1). A fixed frame (15) is fixedly connected inside the dense phase fluidized bed (3). A plurality of slide grooves (18) are provided on the top of the fixed frame (15). The slider (17) moves along the groove direction of the slide grooves (18). A clamping plate (16) is fixedly connected to the bottom of the slider (17), and the clamping plate (16) is clamped to the fixed frame (15).

2. A vertical heat extraction fluidized bed according to claim 1, characterized in that: The locking assembly comprises a plurality of connection blocks (12), the plurality of connection blocks (12) being evenly fixedly connected to the circumferential outer wall of the dense phase fluidized bed (3), the bottoms of the plurality of connection blocks (12) being provided with a clamping groove (11), the circumferential outer wall of the cover plate (2) being fixedly connected with a plurality of telescopic rods (13), one end of the telescopic portion of two adjacent telescopic rods (13) being fixedly connected with a fixing block (8), the top of the fixing block (8) being provided with a threaded hole, the threaded hole being threadedly connected with a threaded rod (7), the bottom end of the threaded rod (7) being rotatably connected with a clamping block (10), and the clamping block (10) being clamped with the clamping groove (11), and one side of the plurality of connection blocks (12) being provided with a avoiding groove (9) connected with the clamping groove (11) for avoiding the threaded rod (7).

3. A vertical heat extraction fluidized bed according to claim 2, characterized in that: The top end of the threaded rod (7) is fixedly connected with a knob for rotating the threaded rod (7).

4. A vertical heat extraction fluidized bed according to claim 2, characterized in that: A guide rod (14) is fixedly connected to the top of the clamping block (10), and the guide rod (14) passes through the fixed block (8).

5. The vertical heat extraction fluidized bed according to claim 1, characterized in that: A sealing ring (4) is fixedly connected to the bottom of the cover plate (2).

6. A vertical heat extraction fluidized bed according to claim 5, characterized in that: The sealing ring (4) is located between the cover plate (2) and the dense phase fluidized bed (3).

7. A vertical heat extraction fluidized bed according to claim 1, characterized in that: A sealing ring (5) is fixedly connected to the outer side of the convex block (6).

8. A vertical heat extraction fluidized bed according to claim 7, characterized in that: The sealing ring (5) is located between the protrusion (6) and the cover plate (2).

Images