Heat exchanger for fluidized bed

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger for a fluidized bed, which comprises a support frame, a pair of partition plates is arranged above the support frame, an empty slot is arranged on the inner side of each partition plate, a plurality of first limiting holes are arranged at the top and the bottom of each partition plate, and an extension component is arranged in each empty slot. And the extension assembly comprises an extension plate slidably connected with the side face of the inner wall of the empty groove, a plurality of second limiting holes are formed in the inner side of the extension plate, a fixing block is fixedly connected to the side face of the extension plate, and a sliding rod is fixedly connected to the side, away from the extension plate, of the fixing block. According to needs, the extension plate is dragged to slide out of the empty groove, the extension plate slides out of the appropriate length, the second limiting holes with the corresponding number are exposed outside, the second limiting holes, not sliding out of the empty groove, in the extension plate coincide with the corresponding first limiting holes, the heat exchange pipes with the corresponding number can be additionally installed, and the heat exchange pipes are more flexible to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger for a fluidized bed. Background Art

[0002] Circulating fluidized beds are widely used in domestic and foreign industries as the main equipment for concentration, drying or granulation, but the drying is mainly carried out by heating. The circulating fluidized bed is a process in which the material to be dried is added into the fluidized bed through a feeder, and the material is dried in the fluidized bed by the hot air generated by the heat exchanger.

[0003] The heat exchange tubes in the existing heat exchanger are fixed by welding. In actual use, the number of heat exchange tubes in the heat exchanger will be adjusted according to actual needs. The fixed type cannot flexibly adjust the number of heat exchange tubes according to actual needs. Therefore, the utility model provides a fluidized bed heat exchanger. Utility Model Content

[0004] The utility model aims to provide a heat exchanger for a fluidized bed, which can drag an extension plate out of an empty slot as needed to make the extension plate slide out to a suitable length, so that a corresponding number of second limiting holes are exposed to the outside, and the second limiting holes in the extension plate that have not slid out of the empty slot overlap with the corresponding first limiting holes, thereby increasing the number of heat exchange tubes and making the replacement of the heat exchange tubes more flexible.

[0005] To achieve the above object, the utility model provides the following technical solution: a fluidized bed heat exchanger, comprising a support frame, a pair of partitions are arranged above the support frame, an empty slot is opened inside the partition, a plurality of first limiting holes are opened at the top and bottom of the partition, and an extension component is arranged in the empty slot;

[0006] The extension assembly comprises an extension plate slidably connected to the side of the inner wall of the hollow slot, a plurality of second limiting holes are provided on the inner side of the extension plate, a fixing block is fixedly connected to the side of the extension plate, a side of the fixing block away from the extension plate is fixedly connected to a sliding rod, a pair of fixing plates are fixedly connected to the top of the support frame, and a pair of slots adapted to the sliding rods are provided on the inner side of the fixing plates;

[0007] The outer side of the fixing plate is provided with a limiting bolt, and the inner sides of the fixing plate and the sliding rod are both provided with threaded holes matched with the limiting bolt.

[0008] Preferably, a plurality of heat exchange tubes are arranged on the outer side of the support frame, and the first limiting hole and the second limiting hole are both adapted to the heat exchange tubes;

[0009] A first centralized warehouse connected to the heat exchange tube is disposed at the bottom of the support frame, and a condensation outlet is disposed on the outer side of the first centralized warehouse;

[0010] A second centralized warehouse connected to the heat exchange tube is disposed at the bottom of the support frame, a steam inlet is disposed on the outer side of the second centralized warehouse, and a vent is disposed on the outer side of the second centralized warehouse;

[0011] A pair of support plates are fixedly connected to the outer side of the support frame, and a pair of limit frames are fixedly connected to the side of the support plate;

[0012] A pair of limit blocks matched with the limit frame are fixedly connected to the side of the partition, and the inner sides of the limit blocks and the limit frame are both provided with thread grooves, the inner wall side of the thread groove is threadedly connected with bolts, and the outer side of the bolt is threadedly connected with nuts.

[0013] Beneficial effects of the utility model:

[0014] 1. Drag the extension plate out of the empty slot as needed to make the extension plate slide out to a suitable length so that the corresponding number of second limiting holes are exposed to the outside, and the second limiting holes in the extension plate that have not slid out of the empty slot overlap with the corresponding first limiting holes, which can increase the number of heat exchange tubes and make the replacement of heat exchange tubes more flexible.

[0015] 2. In the process of adjusting the position of the extension plate, the extension plate drives the sliding rod to slide along the slot hole to prevent the extension plate from being offset during the sliding process, and the sliding rod can be fixed in a suitable position by the limiting bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic structural diagram of a preferred embodiment of the utility model;

[0018] Figure 2 This is a structural schematic diagram of another preferred embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the fixed plate and the sliding rod in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the partition plate and the extension plate of the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the condensation outlet and the steam inlet in the utility model;

[0022] Figure 6 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 7 for Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0024] In the figure: 1. support frame; 2. support plate; 3. partition; 4. extension plate; 5. heat exchange tube; 6. limit frame; 7. nut; 8. bolt; 9. limit block; 10. first limit hole; 11. second limit hole; 12. fixing plate; 13. sliding rod; 14. threaded hole; 15. limit bolt; 16. slot; 17. first central storage; 18. condensation outlet; 19. second central storage; 20. steam inlet; 21. vent; 22. fixing block. DETAILED DESCRIPTION

[0025] 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.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Example 1: Reference Figure 1-7 A fluidized bed heat exchanger shown in the figure comprises a support frame 1, a pair of partitions 3 are arranged above the support frame 1, a hollow groove is opened inside the partition 3, a plurality of first limiting holes 10 are opened at the top and bottom of the partition 3, and an extension component is arranged in the hollow groove;

[0028] The extension component includes an extension plate 4 that is slidably connected to the side of the inner wall of the empty slot, and a plurality of second limiting holes 11 are provided on the inner side of the extension plate 4, so that the length of the extension plate 4 sliding out of the empty slot can be adjusted according to the number of heat exchange tubes 5, so that the corresponding number of second limiting holes 11 are exposed to the outside, and a fixing block 22 is fixedly connected to the side of the extension plate 4, and a sliding rod 13 is fixedly connected to the side of the fixing block 22 away from the extension plate 4. A pair of fixing plates 12 are fixedly connected to the top of the support frame 1, and a pair of slots 16 that are compatible with the sliding rod 13 are provided on the inner side of the fixing plate 12, so as to facilitate the limiting and fixing of the partition 3; a limiting bolt 15 is provided on the outer side of the fixing plate 12, and threaded holes 14 that are compatible with the limiting bolt 15 are provided on the inner sides of the fixing plate 12 and the sliding rod 13. The sliding rod 13 is limited and fixed by the limiting bolt 15; a plurality of heat exchange tubes 5 are arranged on the outer side of the support frame 1, and the first limiting hole 10 and the second limiting hole 11 are both adapted to the heat exchange tubes 5, so as to limit the heat exchange tubes 5; a first concentrated bin 17 connected to the heat exchange tubes 5 is arranged at the bottom of the support frame 1, and a condensation outlet 18 is arranged at the outer side of the first concentrated bin 17; a second concentrated bin 19 connected to the heat exchange tubes 5 is arranged at the bottom of the support frame 1, a steam inlet 20 is arranged at the outer side of the second concentrated bin 19, and a vent 21 is arranged at the outer side of the second concentrated bin 19; a pair of support plates 2 are fixedly connected to the outer side of the support frame 1, and a pair of limiting frames 6 are fixedly connected to the sides of the support plates 2, and the support plates 2 support the limiting frames 6.

[0029] In this embodiment, the extension plate 4 is dragged to drive the sliding rod 13 to slide along the slot 16, so that the extension plate 4 slides out of the partition 3 and slides to a suitable position. After the position of the extension plate 4 is moved, the second limiting hole 11 on the inner side of the extension plate 4 is aligned with the corresponding first limiting hole 10, and the limiting bolt 15 is used to limit and fix the sliding rod 13 to maintain the stability of the sliding rod 13 and the extension plate 4, so as to flexibly increase or decrease the number of heat exchange tubes 5 according to actual needs. The extension plate 4 can be slid into the empty slot to reduce the number of the second limiting holes 11 leaking to the outside, so as to reduce the heat exchange tubes 5 while reducing the floor space of the extension plate 4.

[0030] Example 2: Reference Figure 1-5 Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a pair of limit blocks 9 adapted to the limit frame 6 are fixedly connected to the side of the partition 3, and thread grooves are provided on the inner sides of the limit blocks 9 and the limit frame 6. Bolts 8 are threadedly connected to the side surfaces of the inner walls of the thread grooves, and nuts 7 are threadedly connected to the outer sides of the bolts 8, so as to facilitate the limiting and fixing of the limit blocks 9 and realize the fixing and installation of the partition 3.

[0031] In this embodiment, the partition 3 is dragged to drive the limit block 9 to slide into the limit frame 6, and the limit frame 6 and the limit block 9 are connected using bolts 8 to maintain the stability of the partition 3. Multiple partitions 3 are installed so that the partitions 3 are directly sleeved on the outside of multiple heat exchange tubes 5 to support the heat exchange tubes 5.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fluidized bed heat exchanger, comprising a support frame (1), characterized in that: A pair of partitions (3) are arranged above the support frame (1), a hollow groove is provided on the inner side of the partition (3), a plurality of first limiting holes (10) are provided on the top and bottom of the partition (3), and an extension component is arranged in the hollow groove; The extension assembly comprises an extension plate (4) slidably connected to the side of the inner wall of the hollow groove, a plurality of second limiting holes (11) are provided on the inner side of the extension plate (4), a fixing block (22) is fixedly connected to the side of the extension plate (4), a side of the fixing block (22) away from the extension plate (4) is fixedly connected to a sliding rod (13), a pair of fixing plates (12) are fixedly connected to the top of the support frame (1), and a pair of slots (16) adapted to the sliding rod (13) are provided on the inner side of the fixing plate (12); A limiting bolt (15) is arranged on the outer side of the fixing plate (12), and a threaded hole (14) matching the limiting bolt (15) is opened on the inner side of the fixing plate (12) and the sliding rod (13).

2. A fluidized bed heat exchanger according to claim 1, characterized in that: A plurality of heat exchange tubes (5) are arranged on the outer side of the support frame (1), and the first limiting hole (10) and the second limiting hole (11) are both adapted to the heat exchange tubes (5); A first centralized bin (17) connected to the heat exchange tube (5) is provided at the bottom of the support frame (1), and a condensation outlet (18) is provided on the outer side of the first centralized bin (17); A second centralized warehouse (19) connected to the heat exchange tube (5) is provided at the bottom of the support frame (1), a steam inlet (20) is provided on the outer side of the second centralized warehouse (19), and a vent (21) is provided on the outer side of the second centralized warehouse (19); A pair of support plates (2) are fixedly connected to the outer side of the support frame (1), and a pair of limit frames (6) are fixedly connected to the side of the support plate (2); A pair of limit blocks (9) adapted to the limit frame (6) are fixedly connected to the side of the partition (3); the limit blocks (9) and the limit frame (6) are provided with threaded grooves on their inner sides; bolts (8) are threadedly connected to the inner wall side of the threaded groove; and nuts (7) are threadedly connected to the outer side of the bolts (8).

Images