Circulating fluidized bed hood easy to install

Abstract

The utility model relates to the technical field of fluidized bed equipment, in particular to a circulating fluidized bed hood easy to install, which comprises an installation seat, an installation pipe penetrates through the inner wall of the installation seat, the top end of the installation pipe is fixedly connected with an inner hood, the outer wall of the inner hood is provided with an inner through hole, and the inner hood is sleeved with an outer hood. An outer through hole is formed in the outer wall of the outer hood, an installation frame is fixedly connected to the outer wall of the installation pipe, a screw rod is arranged in the installation frame, by arranging the installation block and the installation groove, a worker puts the installation pipe into the installation base, an embedded plate is embedded into an embedded groove, pre-positioning operation on the installation pipe is achieved, and then the installation pipe is fixed through the screw rod. The screw rotates to drive the working hole plates at the two ends of the telescopic frame to slide through threads, the working hole plates slide to drive the connecting columns to slide along the outer walls of the limiting rods, the connecting columns slide to drive the mounting blocks to be clamped with the mounting grooves in the embedding grooves, and quick mounting operation of the mounting pipe is achieved.

Description

Technical Field

[0001] This utility model relates to the field of fluidized bed equipment technology, and in particular to an easy-to-install circulating fluidized bed air cap. Background Technology

[0002] Circulating fluidized bed boilers are a coal-fired technology that is highly efficient, low-pollution, and makes good comprehensive utilization of coal resources. Due to its unique advantages in coal type adaptability, variable load capacity, and reduced pollutant emissions, it has been developed rapidly.

[0003] In the prior art, utility model patent with publication number CN218763374U discloses a wind cap installation structure for a circulating fluidized bed boiler, which can reduce the amount of installation work, is easy to disassemble and replace, and will not damage the wind cap. It includes a wind cap connecting pipe installed on the air distribution plate, and a wind cap head is installed on the wind cap connecting pipe. The wind cap head is characterized in that a first through hole is opened on both sides of the lower side wall of the wind cap head, and a second through hole is opened on the wind cap connecting pipe to cooperate with the first through hole. The wind cap head is fitted onto the wind cap connecting pipe and fixed by a pin inserted into the first through hole and the second through hole. A circular retaining ring is fitted on the lower outer ring of the wind cap head.

[0004] However, existing circulating fluidized bed (CFB) air caps cannot be correctly placed on the fluidized bed during use, requiring manual calibration by operators. Therefore, we propose an easy-to-install CFB air cap. Utility Model Content

[0005] The purpose of this invention is to provide an easy-to-install circulating fluidized bed air cap to solve the problem of air cap calibration in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An easy-to-install circulating fluidized bed air cap includes a mounting base, an installation tube extending through the inner wall of the mounting base, an inner air cap fixedly connected to the top end of the installation tube, an inner through hole on the outer wall of the inner air cap, an outer air cap sleeved on the outside of the inner air cap, an outer through hole on the outer wall of the outer air cap, an installation frame fixedly connected to the outer wall of the installation tube, a screw rod disposed inside the installation frame, a telescopic frame threadedly connected to the outer wall of the screw rod, working hole plates fixedly connected to both ends of the telescopic frame, a connecting column movably connected to the groove of the working hole plate, a limit rod extending through the inner wall of the connecting column, an embedded plate fixedly connected to the outer wall of the limit rod and fixedly connected to the outer wall of the installation tube, an embedded groove on the connection between the mounting base and the embedded plate, an installation block fixedly connected to the outer wall of the connecting column, and an installation groove on the connection between the embedded groove and the installation block.

[0008] Preferably, the central axis of the inner vent is perpendicular to the central axis of the inner through hole.

[0009] Preferably, the embedded plate is provided in two sets, and the two sets of embedded plates are symmetrical about the central axis of the mounting tube.

[0010] Preferably, the mounting tube forms a positioning structure with the mounting base through an embedded plate and an embedded groove.

[0011] Preferably, the slots in the working plate are inclined.

[0012] Preferably, the connecting column forms a sliding structure between the working hole plate and the limiting rod.

[0013] Preferably, the embedded plate forms a fixed structure with the mounting block and the mounting groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By setting up the mounting block and mounting groove, the operator places the mounting tube into the mounting base. The embedding plate on the outer wall of the mounting tube engages with the embedding groove on the inner wall of the mounting base to achieve the pre-positioning operation of the mounting tube. Then, the screw rotates and drives the working hole plates at both ends of the telescopic frame to slide through the thread. The sliding of the working hole plates causes the connecting column to slide along the outer wall of the limiting rod. The sliding of the connecting column causes the mounting block to engage with the mounting groove inside the embedding groove, thus achieving the rapid installation operation of the mounting tube.

[0016] 2. By setting an internal through hole, the blower sends gas into the air chamber at the bottom of the fluidized bed. Then, the airflow exits through the internal through hole on the side wall of the inner air cap and the external through hole on the side wall of the outer air cap, preventing the airflow from pushing the outer air cap out of the inner air cap and causing the outer air cap to fall off. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the mounting base in this utility model;

[0019] Figure 3 This is a three-dimensional unfolded structural diagram of the inner and outer wind caps in this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the mounting frame in this utility model.

[0021] The markings in the diagram are as follows: 1. Mounting base; 2. Mounting tube; 3. Inner vent cap; 301. Inner through hole; 4. Outer vent cap; 401. Outer through hole; 5. Mounting frame; 6. Screw; 7. Telescopic frame; 8. Working hole plate; 9. Connecting column; 10. Limiting rod; 11. Embedded plate; 12. Embedded groove; 13. Mounting block; 14. Mounting groove. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] See Figures 1-4 This utility model provides an easy-to-install circulating fluidized bed air cap, including a mounting base 1, an installation pipe 2 penetrating the inner wall of the mounting base 1, an inner air cap 3 fixedly connected to the top end of the installation pipe 2, an inner through hole 301 opened on the outer wall of the inner air cap 3, an outer air cap 4 sleeved on the outside of the inner air cap 3, an outer through hole 401 opened on the outer wall of the outer air cap 4, an installation frame 5 fixedly connected to the outer wall of the installation pipe 2, a screw 6 provided inside the installation frame 5, a telescopic frame 7 threadedly connected to the outer wall of the screw 6, working hole plates 8 fixedly connected to both ends of the telescopic frame 7, a connecting column 9 movably connected in the groove of the working hole plate 8, a limit rod 10 penetrating the inner wall of the connecting column 9, an embedded plate 11 fixedly connected to the outer wall of the limit rod 10 and fixedly connected to the outer wall of the installation pipe 2, an embedded groove 12 opened at the connection part between the mounting base 1 and the embedded plate 11, an installation block 13 fixedly connected to the outer wall of the connecting column 9, and an installation groove 14 opened at the connection part between the embedded groove 12 and the installation block 13.

[0024] Based on the above structure, the rotation of the screw 6 drives the working hole plates 8 at both ends of the telescopic frame 7 to slide through the thread. The sliding of the working hole plates 8 drives the connecting column 9 to slide along the outer wall of the limiting rod 10. The sliding of the connecting column 9 drives the mounting block 13 to engage with the mounting groove 14 inside the embedded groove 12, thereby realizing the quick installation operation of the mounting tube 2.

[0025] As a preferred embodiment, the central axis of the inner hood 3 is perpendicular to the central axis of the inner through hole 301. The airflow exits through the inner through hole 301 on the side wall of the inner hood 3 and the outer through hole 401 on the side wall of the outer hood 4, preventing the airflow from pushing the outer hood 4 out of the inner hood 3 and causing the outer hood 4 to fall off.

[0026] As a preferred option, the embedded plate 11 is provided in two sets, and the two sets of embedded plates 11 are symmetrical about the central axis of the mounting tube 2, which facilitates the stable installation operation of the mounting base 1.

[0027] As a preferred embodiment, the mounting tube 2 forms a positioning structure with the mounting base 1 through the embedding plate 11 and the embedding groove 12. The pre-positioning operation of the mounting tube 2 is achieved by the embedding plate 11 on the outer wall of the mounting tube 2 engaging with the embedding groove 12 on the inner wall of the mounting base 1.

[0028] As a preferred embodiment, the slots of the working orifice plate 8 are inclined. The sliding of the working orifice plate 8 causes the connecting column 9 to slide along the outer wall of the limiting rod 10, thereby realizing the sliding operation of the connecting column 9.

[0029] As a preferred embodiment, the connecting column 9 forms a sliding structure between the working hole plate 8 and the limiting rod 10. This facilitates the sliding of the working hole plate 8, which in turn drives the connecting column 9 to slide along the outer wall of the limiting rod 10. The sliding of the connecting column 9 then drives the mounting block 13 to slide synchronously, thus realizing the sliding operation of the mounting block 13.

[0030] As a preferred embodiment, the embedded plate 11 forms a fixed structure with the embedded groove 12 through the mounting block 13 and the mounting groove 14. The connecting column 9 slides to engage the mounting block 13 with the mounting groove 14 inside the embedded groove 12, thereby realizing the quick installation operation of the mounting tube 2.

[0031] The working principle of the easy-to-install circulating fluidized bed air cap described in this utility model is as follows:

[0032] In use, firstly, the staff puts the installation tube 2 into the installation base 1. The installation tube 2 is pre-positioned by the insertion plate 11 on the outer wall of the installation tube 2 engaging with the insertion groove 12 on the inner wall of the installation base 1.

[0033] Next, the staff rotates the screw 6. The rotation of the screw 6 drives the working hole plates 8 at both ends of the telescopic frame 7 to slide through the thread. The sliding of the working hole plates 8 drives the connecting column 9 to slide along the outer wall of the limiting rod 10. The sliding of the connecting column 9 drives the mounting block 13 to engage with the mounting groove 14 inside the embedded groove 12, realizing the quick installation operation of the mounting tube 2.

[0034] Finally, the blower sends the gas into the air chamber at the bottom of the fluidized bed. Then, the airflow is discharged through the inner through hole 301 on the side wall of the inner air cap 3 and the outer through hole 401 on the side wall of the outer air cap 4, so as to prevent the airflow from pushing the outer air cap 4 out of the inner air cap 3 and causing the outer air cap 4 to fall off.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An easy-to-install circulating fluidized bed air cap, comprising a mounting base (1), characterized in that: The mounting base (1) has an installation tube (2) running through its inner wall. An inner vent cap (3) is fixedly connected to the top of the installation tube (2). An inner through hole (301) is opened on the outer wall of the inner vent cap (3). An outer vent cap (4) is sleeved on the outside of the inner vent cap (3). An outer through hole (401) is opened on the outer wall of the outer vent cap (4). An installation frame (5) is fixedly connected to the outer wall of the installation tube (2). A screw (6) is provided inside the installation frame (5). A telescopic frame (7) is threadedly connected to the outer wall of the screw (6). The two ends of the telescopic frame (7) are connected to the telescopic frame (7). All are fixedly connected to a working hole plate (8), and a connecting column (9) is movably connected in the groove of the working hole plate (8). A limit rod (10) passes through the inner wall of the connecting column (9). An embedded plate (11) is fixedly connected to the outer wall of the limit rod (10) and is fixedly connected to the outer wall of the mounting tube (2). An embedded groove (12) is opened at the connection between the mounting base (1) and the embedded plate (11). An mounting block (13) is fixedly connected to the outer wall of the connecting column (9). An mounting groove (14) is opened at the connection between the embedded groove (12) and the mounting block (13).

2. The easily installable circulating fluidized bed air cap according to claim 1, characterized in that: The central axis of the inner hood (3) is perpendicular to the central axis of the inner through hole (301).

3. The easily installable circulating fluidized bed air cap according to claim 1, characterized in that: The embedding plate (11) is provided in two sets, and the two sets of embedding plates (11) are symmetrical about the central axis of the mounting tube (2).

4. The easily installable circulating fluidized bed air cap according to claim 1, characterized in that: The mounting tube (2) forms a positioning structure with the mounting base (1) through the embedding plate (11) and the embedding groove (12).

5. The easily installable circulating fluidized bed air cap according to claim 1, characterized in that: The slots of the working perforated plate (8) are inclined.

6. The easily installable circulating fluidized bed air cap according to claim 1, characterized in that: The connecting column (9) forms a sliding structure between the working hole plate (8) and the limiting rod (10).

7. The easy-to-install circulating fluidized bed air cap according to claim 1, characterized in that: The embedded plate (11) forms a fixed structure with the embedded groove (12) through the mounting block (13) and the mounting groove (14).

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