Fluidized bed boiler hood with adjustable wind direction

Abstract

The utility model discloses a fluidized bed boiler hood with adjustable wind direction, which comprises a hood body, and is characterized in that a guide assembly is arranged outside the hood body, the guide assembly comprises a plurality of guide plates rotationally connected with the bottom of the outer wall of the circumference of the hood body, and the plurality of guide plates respectively correspond to a plurality of air outlets of the hood body. A plurality of springs are fixedly connected to the bottom of the circumferential outer wall of the hood body, one ends of the springs are fixedly connected to the exteriors of the multiple guide plates correspondingly, the multiple guide plates are sleeved with the same adjusting ring, two extending blocks are arranged on the inner circle of the adjusting ring, and a driving mechanism is installed at the tops of the two extending blocks; through the arrangement of the guide assembly, the air direction of airflow can be adjusted at will according to the distribution of the air caps on the air distribution plate, the airflow generated by the air caps is prevented from influencing the normal use of other air caps, and the air distribution can be more uniform according to the adjusted air direction.

Description

Technical Field

[0001] The utility model relates to the technical field of wind caps, in particular to a wind cap for a fluidized bed boiler with adjustable wind direction. Background Art

[0002] The circulating fluidized bed boiler needs to establish a stable material circulation during operation, and the wind cap on the air distribution plate has an important influence on the realization of this process. When designing the boiler, it is necessary to ensure that the air is evenly distributed over the entire furnace cross section, and to avoid fluidization dead zones while ensuring uniform fluidization of the material, and to prevent accidents such as slag leakage from the wind chamber, uneven fluidization, and coking of the bed.

[0003] After searching, a utility model with Chinese patent announcement number CN220750111U discloses a fluidized bed boiler hood structure, including a hood and an air duct, one end of the air duct is sleeved in the hood, and is characterized in that: a clamping block arranged in a circular array is fixedly connected to the bottom of the hood, a connecting piece is hinged on one side of the clamping block, a hood seat is fixedly connected to the air duct, a clamping groove and a connecting groove are provided in a circular array on the upper side of the hood seat, and the clamping groove is adapted to the clamping block.

[0004] When the above-mentioned hood is in use, the wind eye thereon is generally arranged horizontally, and the discharged airflow is easy to wash the surrounding boiler hoods, thereby damaging the surrounding hoods. The direction of the wind eye cannot be adjusted according to the current situation, and it is inconvenient to use. Therefore, a fluidized bed boiler hood with adjustable wind direction is proposed. Utility Model Content

[0005] The utility model aims to provide a fluidized bed boiler hood with adjustable wind direction to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fluidized bed boiler hood with adjustable wind direction, comprising a hood body, characterized in that: a guide assembly is installed on the outside of the hood body, the guide assembly includes a plurality of guide plates rotatably connected to the bottom of the circumferential outer wall of the hood body, the plurality of guide plates respectively correspond to the plurality of air outlets of the hood body, a plurality of springs are fixedly connected to the bottom of the circumferential outer wall of the hood body, one end of the plurality of springs are respectively fixedly connected to the outside of the plurality of guide plates, the plurality of guide plates are externally sleeved with the same adjusting ring, the inner ring of the adjusting ring is provided with two extension blocks, and a driving mechanism is installed on the top of the two extension blocks.

[0007] As a further preferred embodiment of the technical solution, a screw is fixedly connected to the top of one of the extension blocks of the adjustment ring, a screw sleeve is provided at the top of the screw, the screw sleeve is rotatably connected to the top inner wall of the hood body, and the same telescopic rod is fixedly connected between the top inner wall of the hood body and the other extension block.

[0008] The wind direction of the airflow can be adjusted at will according to the distribution of the hoods on the air distribution plate to prevent the airflow generated by the hood from affecting the normal use of other hoods. The air distribution can also be made more even according to the adjusted wind direction. If you need to adjust the direction of the airflow sprayed from the hood, just turn the screw sleeve at the bottom of the hood body and rotate it. Since the adjusting ring is connected to the screw rod and the telescopic rod, the adjusting ring cannot rotate, and the screw rod is connected to the adjusting ring. Therefore, the screw sleeve can drive the adjusting ring to move up and down at will. If the adjusting ring moves upward, it can overcome the thrust of the spring to make the guide plate flip inward. If the adjusting ring moves downward, the spring can push the guide plate to flip outward. When the airflow generated by the hood blows on the inclined guide plate, the flow direction will also change.

[0009] As a further preferred embodiment of the present technical solution, a protective component is installed on the top of the hood body, and the protective component includes a plurality of limiting rails arranged on the outer wall of the top of the hood body, and a mounting rod is slidably connected inside the plurality of limiting rails, and a protective cover is slidably inserted at one end of the bottom of the plurality of mounting rods, and the plurality of protective covers can be respectively inserted into the plurality of air outlets of the hood body.

[0010] As a further preferred embodiment of the present technical solution, a screw is rotatably connected to the middle portion of the top outer wall of the hood body, the screw threaded sleeve is provided with a connecting ring, the connecting ring is rotatably connected to a plurality of push-pull rods, and the plurality of push-pull rods are respectively rotatably connected to one end of a plurality of mounting rods close to each other.

[0011] The dust cap drives the screw rod to rotate on the top of the hood body, and the connecting ring that is restricted and unable to rotate will be driven downward by the screw rod. The connecting ring can drive multiple mounting rods to move away from each other along the limiting track through the inclined push-pull rod, and then the protective cover is inserted into the mounting hole at the bottom of the mounting rod, and then the multiple mounting rods are driven to approach again repeatedly, and then the multiple protective covers will also enter the air outlet of the hood body, so as to protect the air outlet. Even if damage occurs, there is no need to replace the entire hood, and the operation is more convenient.

[0012] As a further preferred embodiment of the present technical solution, a dust cap is coaxially fixed to one end of the top of the screw rod, and the diameter of the dust cap is larger than the diameter of the hood body.

[0013] As a further preferred embodiment of the present technical solution, the thread lead angle of the screw and the lead screw is smaller than the equivalent friction angle.

[0014] The utility model provides a fluidized bed boiler hood with adjustable wind direction, which has the following beneficial effects:

[0015] (1) The utility model can adjust the wind direction of the airflow according to the distribution of the hoods on the air distribution plate by setting a guide component, so as to prevent the airflow generated by the hood from affecting the normal use of other hoods. It can also make the air distribution more uniform according to the adjusted wind direction. If it is necessary to adjust the direction of the airflow ejected from the hood, just turn the screw sleeve at the bottom of the hood body and rotate it. Since the adjustment ring is connected to the screw rod and the telescopic rod, the adjustment ring cannot rotate. The screw rod is connected to the adjustment ring, so the screw sleeve can drive the adjustment ring to move up and down at will. If the adjustment ring moves upward, it can overcome the thrust of the spring to make the guide plate flip inward. If the adjustment ring moves downward, the spring can push the guide plate to flip outward. When the airflow generated by the hood blows on the inclined guide plate, the flow direction will also change.

[0016] (2) The utility model sets a protective component. The dust cap drives the screw rod to rotate on the top of the hood body. The connecting ring that is restricted and unable to rotate will be driven downward by the screw rod. The connecting ring can drive multiple installation rods to move away from each other along the limiting track through the inclined push-pull rod. Then the protective cover is inserted into the installation hole at the bottom of the installation rod, and then the multiple installation rods are driven to approach again repeatedly, and then the multiple protective covers will also enter the air outlet of the hood body, so as to protect the air outlet. Even if damage occurs, there is no need to replace the entire hood, which makes the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall first-view structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0019] Figure 3 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 4 For the utility model Figure 2 The enlarged structural diagram at B in the middle;

[0021] In the figure: 1. hood body; 2. dust cap; 3. guide assembly; 4. protection assembly; 301. guide plate; 302. spring; 303. adjustment ring; 304. screw; 305. screw sleeve; 306. telescopic rod; 401. limit track; 402. mounting rod; 403. protective sleeve; 404. push-pull rod; 405. connecting ring; 406. screw. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The utility model provides a technical solution: Figure 2 and Figure 3 As shown, in the present embodiment, a hood of a fluidized bed boiler with adjustable wind direction comprises a hood body 1, characterized in that: a guide assembly 3 is installed on the outside of the hood body 1, the guide assembly 3 comprises a plurality of guide plates 301 rotatably connected to the bottom of the circumferential outer wall of the hood body 1, the plurality of guide plates 301 respectively correspond to the plurality of air outlets of the hood body 1, a plurality of springs 302 are fixedly connected to the bottom of the circumferential outer wall of the hood body 1, one end of the plurality of springs 302 are respectively fixedly connected to the outside of the plurality of guide plates 301, the plurality of guide plates 301 are externally sleeved with the same adjusting ring 303, the inner circle of the adjusting ring 303 is provided with two extension blocks, and a driving mechanism is installed on the top of the two extension blocks.

[0024] A screw 304 is fixedly connected to the top of one of the extension blocks of the adjustment ring 303, and a screw sleeve 305 is threadedly provided on the top of the screw 304. The screw sleeve 305 is rotatably connected to the top inner wall of the hood body 1, and the same telescopic rod 306 is fixedly connected between the top inner wall of the hood body 1 and the other extension block.

[0025] If it is necessary to adjust the direction of the airflow ejected from the hood, just turn the screw sleeve 305 and rotate it at the bottom of the hood body 1. Since the adjusting ring 303 is connected to the screw rod 304 and the telescopic rod 306, the adjusting ring 303 cannot rotate, and the screw rod 304 is connected to the adjusting ring 303, so the screw sleeve 305 can drive the adjusting ring 303 to move up and down at will. If the adjusting ring 303 moves upward, it can overcome the thrust of the spring 302 to make the guide plate 301 flip inward. If the adjusting ring 303 moves downward, the spring 302 can push the guide plate 301 to flip outward. When the airflow generated by the hood blows on the inclined guide plate 301, the flow direction will also change.

[0026] like Figure 2 and Figure 4 As shown, a protective component 4 is installed on the top of the hood body 1, and the protective component 4 includes a plurality of limiting rails 401 set on the outer wall of the top of the hood body 1, and the plurality of limiting rails 401 are slidably connected to a mounting rod 402, and a protective cover 403 is slidably inserted at one end of the bottom of the plurality of mounting rods 402, and the plurality of protective covers 403 can be respectively inserted into the plurality of air outlets of the hood body 1.

[0027] A screw rod 406 is rotatably connected to the middle of the top outer wall of the hood body 1. The screw rod 406 is threadedly sleeved with a connecting ring 405. The connecting ring 405 is rotatably connected to multiple push-pull rods 404. The multiple push-pull rods 404 are rotatably connected to one end of the multiple installation rods 402 that are close to each other.

[0028] The dust cap 2 drives the screw rod 406 to rotate on the top of the hood body 1, and the connecting ring 405 that is restricted and unable to rotate will be driven downward by the screw rod 406. The connecting ring 405 can drive the multiple installation rods 402 to move away from each other along the limiting track 401 through the inclined push-pull rod 404, and then the protective cover 403 is inserted into the installation hole at the bottom of the installation rod 402, and then the multiple installation rods 402 are driven to approach again repeatedly, and then the multiple protective covers 403 will also enter the air outlet of the hood body 1, so as to protect the air outlet. Even if damage occurs, there is no need to replace the entire hood, and the operation is more convenient.

[0029] like Figure 1 As shown, a dust cap 2 is coaxially fixed to one end of the top of the screw rod 406 , and the diameter of the dust cap 2 is larger than the diameter of the hood body 1 , so as to prevent dust falling on the top of the hood body 1 from affecting the operation of the protection component 4 .

[0030] like Figure 3 and Figure 4 As shown, the thread lead angles of the screw 304 and the lead screw 406 are smaller than the equivalent friction angle, so that both have self-locking properties.

[0031] The utility model provides a fluidized bed boiler hood with adjustable wind direction, and the specific working principle is as follows:

[0032] When the device is working, if you need to adjust the direction of the airflow ejected from the hood, just turn the screw sleeve 305 and rotate it at the bottom of the hood body 1. Since the adjusting ring 303 is connected to the screw rod 304 and the telescopic rod 306, the adjusting ring 303 cannot rotate, and the screw rod 304 is connected to the adjusting ring 303, so the screw sleeve 305 can drive the adjusting ring 303 to move up and down at will. If the adjusting ring 303 moves upward, it can overcome the thrust of the spring 302 to make the guide plate 301 flip inward. If the adjusting ring 303 moves downward, the spring 302 can push the guide plate 301 to flip outward. When the airflow generated by the hood blows on the inclined guide plate 301, the airflow to The dust cap 2 will also change, and then the dust cap 2 will be rotated, and the dust cap 2 will drive the screw rod 406 to rotate on the top of the hood body 1. The connecting ring 405 that is restricted and cannot rotate will be driven downward by the screw rod 406, and the connecting ring 405 can drive the multiple installation rods 402 to move away from each other along the limiting track 401 through the inclined push-pull rod 404, and then the protective cover 403 is inserted into the installation hole at the bottom of the installation rod 402, and then the multiple installation rods 402 are driven to approach again repeatedly, and then the multiple protective covers 403 will also enter the air outlet of the hood body 1, so as to protect the air outlet. Even if damage occurs, there is no need to replace the entire hood, and the operation is more convenient.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hood for a fluidized bed boiler with adjustable wind direction, comprising a hood body (1), characterized in that: A guide assembly (3) is installed on the outside of the hood body (1), and the guide assembly (3) includes a plurality of guide plates (301) rotatably connected to the bottom of the circumferential outer wall of the hood body (1), and the plurality of guide plates (301) respectively correspond to the plurality of air outlets of the hood body (1), and a plurality of springs (302) are fixedly connected to the bottom of the circumferential outer wall of the hood body (1), and one end of the plurality of springs (302) is respectively fixedly connected to the outside of the plurality of guide plates (301), and the plurality of guide plates (301) are externally sleeved with the same adjustment ring (303), and the inner ring of the adjustment ring (303) is provided with two extension blocks, and a driving mechanism is installed on the top of the two extension blocks.

2. The wind hood of a fluidized bed boiler with adjustable wind direction according to claim 1, characterized in that: A screw rod (304) is fixedly connected to the top of one of the extension blocks of the adjustment ring (303); a screw sleeve (305) is threadedly provided at the top of the screw rod (304); the screw sleeve (305) is rotatably connected to the top inner wall of the hood body (1); and a same telescopic rod (306) is fixedly connected between the top inner wall of the hood body (1) and the other extension block.

3. The wind hood of a fluidized bed boiler with adjustable wind direction according to claim 1, characterized in that: A protective component (4) is installed on the top of the hood body (1), and the protective component (4) includes a plurality of limiting rails (401) arranged on the outer wall of the top of the hood body (1), and each of the plurality of limiting rails (401) is slidably connected to a mounting rod (402), and each of the bottom ends of each of the plurality of mounting rods (402) is slidably plugged with a protective sleeve (403), and the plurality of protective sleeves (403) can be respectively plugged into the plurality of air outlets of the hood body (1).

4. The wind cap of a fluidized bed boiler with adjustable wind direction according to claim 3 is characterized in that: A screw rod (406) is rotatably connected to the middle of the top outer wall of the hood body (1); a connecting ring (405) is threadedly sleeved on the screw rod (406); the connecting ring (405) is rotatably connected to a plurality of push-pull rods (404); and the plurality of push-pull rods (404) are rotatably connected to one end of a plurality of mounting rods (402) that are close to each other.

5. The wind cap of a fluidized bed boiler with adjustable wind direction according to claim 4 is characterized in that: A dust cap (2) is coaxially fixed to one end of the top of the screw rod (406), and the diameter of the dust cap (2) is larger than the diameter of the hood body (1).

6. The wind hood of a fluidized bed boiler with adjustable wind direction according to claim 2, characterized in that: The thread lead angles of the screw (304) and the lead screw (406) are smaller than the equivalent friction angle.

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