Circulating fluidized bed boiler center cylinder

Abstract

The utility model discloses a central cylinder of a circulating fluidized bed boiler, which relates to the technical field of circulating fluidized bed boilers and comprises a machine body, the surface of the machine body is fixedly connected with an air inlet pipe and an air outlet pipe, and the surface of the machine body is fixedly connected with a filter cartridge; a cleaning assembly is arranged on the surface of the filter cartridge. According to the cleaning device, the motor is started, the motor drives the electric telescopic rod, the electric telescopic rod can drive the wafer in the moving process, the wafer can drive the elastic piece in the moving process, the elastic piece can drive the first cleaning plate in the moving process, and at the moment, the first cleaning plate can drive the second cleaning plate; a first cleaning plate and a second cleaning plate can drive a brush and a scraper on the surfaces to clean along the arc surface of the filter cartridge, and the first cleaning plate and the second cleaning plate play a role in quickly cleaning dust on the surface of the filter cartridge.

Description

Technical Field

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

[0002] The separator is one of the core components of the circulating fluidized bed boiler combustion system. Its main function is to separate a large amount of high-temperature solid materials from the air flow and send them back to the furnace to maintain the rapid fluidization state of the combustion chamber, ensure multiple circulation, repeated combustion and reaction of fuel and desulfurizer, and improve combustion efficiency and desulfurization efficiency.

[0003] Prior art, such as the utility model patent with publication number CN218146486U, discloses a dry coke quenching waste heat boiler, which includes a dry quenching furnace, a steam-cooled cyclone separator and a waste heat boiler, wherein the steam-cooled cyclone separator includes an upper cylinder, a lower cylinder and a central cylinder; the upper cylinder is a volute-shaped structure made of membrane-type steam-cooled tube rows; the lower cylinder is a funnel-shaped structure with a larger upper part and a smaller lower part made of membrane-type steam-cooled tube rows; a flue gas inlet is provided on the side wall of the upper cylinder; a flue gas outlet is provided on the top of the central cylinder; a powder outlet is provided at the bottom of the lower cylinder; the central cylinder is installed and fixed on the upper part of the upper cylinder and is coaxially arranged with the upper cylinder. By adopting the steam-cooled cyclone separator, it can not only efficiently separate the coke powder from the circulating flue gas, but also improve the overall thermal efficiency of the dry coke quenching waste heat boiler, and is more conducive to the stable operation of the waste heat boiler.

[0004] In view of the above and existing related technologies, the inventors believe that the following defects often exist: the surface of the central cylinder of the boiler separator is one of the key components for separating solid particles and liquid droplets in steam. If a large amount of dirt or sediment accumulates on the surface of the central cylinder, the separation process will be hindered and the separation efficiency will be reduced. This means that more solid particles and liquid droplets may pass through the separator and enter the downstream equipment or pipeline system, increasing the problem of equipment wear and failure.

[0005] Therefore, a central tube of a circulating fluidized bed boiler is proposed. Utility Model Content

[0006] In view of the fact that the surface of the existing central cylinder is one of the key components for separating solid particles and liquid droplets in steam, if a large amount of dirt or sediment accumulates on the surface of the central cylinder, the separation process will be blocked and the separation efficiency will be reduced. This means that more solid particles and liquid droplets may pass through the separator and enter the downstream equipment or pipeline system, increasing the problem of equipment wear and failure, and the utility model is proposed.

[0007] Therefore, the utility model aims to provide a central tube of a circulating fluidized bed boiler, and its purpose is to quickly clean the surface of the central tube.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: a central cylinder of a circulating fluidized bed boiler, comprising a body, an air inlet pipe and an air outlet pipe are fixedly connected to the surface of the body, and a filter cylinder is fixedly connected to the surface of the body;

[0009] The surface of the filter cartridge is provided with a cleaning assembly, and the cleaning assembly includes a motor, and the motor is fixedly connected to the filter cartridge, and the end of the motor is rotatably connected to an electric telescopic rod, and the end of the electric telescopic rod away from the motor is fixedly connected to a disc, and the side of the disc away from the electric telescopic rod is fixedly connected to an elastic sheet, and the end of the elastic sheet away from the disc is fixedly connected to a first cleaning plate, and the surface of the first cleaning plate is slidably connected to a second cleaning plate, and the first cleaning plate and the second cleaning plate are slidably connected to the filter cartridge, and one end of the first cleaning plate is fixedly connected to a spring, and the end of the spring away from the first cleaning plate is fixedly connected to the first cleaning plate, and when the motor is started, the motor will The electric telescopic rod is driven, and the circular piece is driven during the movement of the electric telescopic rod. The circular piece is driven during the movement of the elastic piece. The elastic piece is driven during the movement of the first cleaning plate. At this time, the first cleaning plate is driven by the second cleaning plate. The first cleaning plate and the second cleaning plate are driven by the brush and the scraper on the surface to clean along the arc surface of the filter cylinder. The first cleaning plate and the second cleaning plate can quickly clean the dust on the surface of the filter cylinder. The pull rod and the pull plate on the surface of the first cleaning plate can prevent the first cleaning plate and the second cleaning plate from derailing. The spring on the surface can keep the first cleaning plate and the second cleaning plate rebounding at all times.

[0010] As an improved solution, a rectangular hole is opened on the surface of the second cleaning plate, a pull rod is fixedly connected to the surface of the first cleaning plate, and a pull plate is fixedly connected to one end of the pull rod away from the first cleaning plate, and the size of the pull plate is larger than that of the pull rod.

[0011] As an improved solution, the elastic sheet is a spring sheet, which has strong elasticity. The elastic sheet can use its own elasticity to enable the first cleaning plate and the second cleaning plate to always move and clean along the arc surface of the filter cartridge.

[0012] As an improved solution, a scraper is fixedly connected to the surface of the first cleaning plate and the second telescopic plate, and the scraper is a rubber plate.

[0013] As an improved solution, brushes are fixedly connected to the surfaces of the first cleaning plate and the second cleaning plate, and the brushes are evenly arranged on the surfaces of the first cleaning plate and the second cleaning plate. The brushes can clean tiny holes, and the scraper can uniformly scrape away the dust cleaned by the cleaning plates.

[0014] As an improved solution, a purification component is provided on the surface of the air outlet pipe, and the purification component includes a screw rod, which is threadedly connected to the air outlet pipe, and the end of the screw rod away from the air outlet pipe is fixedly connected to a rotating plate, and the surface of the rotating plate is provided with an anti-slip protrusion, and the arc surface of the screw rod is threadedly connected to a bending plate, and the surface of the bending plate is fixedly connected to a purification plate, and the surface of the purification plate is provided with a plurality of rectangular holes, and the surface of the purification plate is fixedly connected to a connecting column, and the end of the connecting column away from the purification plate is fixedly connected to a filter plate, and the purification plate and the filter plate are made of uniform bamboo charcoal, and the purification plate is pressed, and the purification plate can blow out The filter plate can filter the air blown out, and the bending plate can also be driven during the movement of the purification plate. It can stop only when the purification plate reaches the specified position. At this time, the rotating plate is rotated. The rotating plate will drive the screw rod during the movement. The rotating plate facilitates the rotation of the screw rod. At this time, the screw rod moves along the surface of the air outlet pipe toward the direction close to the bending plate until the screw rod passes through the air outlet pipe and rests on the surface of the bending plate. The screw rod can temporarily fix the position of the purification plate.

[0015] Beneficial effects of the utility model:

[0016] 1. Start the motor, the motor will drive the electric telescopic rod, the electric telescopic rod will drive the disc during its movement, the disc will drive the elastic sheet during its movement, the elastic sheet will drive the first cleaning plate during its movement, at this time the first cleaning plate will drive the second cleaning plate, the first cleaning plate and the second cleaning plate will drive the brush and scraper on the surface to clean along the arc surface of the filter cartridge, the elastic sheet will use its own elasticity to enable the first cleaning plate and the second cleaning plate to always move along the arc surface of the filter cartridge for cleaning, the first cleaning plate and the second cleaning plate can quickly clean the dust on the surface of the filter cartridge.

[0017] 2. The purification plate can effectively purify the blown air. When the purification plate moves, it will drive the connecting column. When the connecting column moves, it will drive the filter plate. The filter plate can filter the blown air. When the purification plate moves, it will also drive the bending plate. The purification plate can stop only when it reaches the designated position. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of a central tube of a circulating fluidized bed boiler of the utility model;

[0020] Figure 2 This is a structural schematic diagram of a cleaning assembly for a central tube of a circulating fluidized bed boiler according to the utility model;

[0021] Figure 3 The utility model is a circulating fluidized bed boiler central tube Figure 2 Schematic diagram of the local structure in;

[0022] Figure 4 This is a schematic structural diagram of a purification component of a central tube of a circulating fluidized bed boiler according to the utility model;

[0023] Description of reference numerals:

[0024] 1. Machine body; 2. Air inlet pipe; 3. Air outlet pipe; 4. Filter cartridge; 5. Cleaning assembly; 501. Motor; 502. Electric telescopic rod; 503. Disc; 504. Elastic sheet; 505. First cleaning plate; 506. Second cleaning plate; 507. Scraper; 508. Brush; 509. Rectangular hole; 510. Pull rod; 511. Pull plate; 512. Spring; 6. Purification assembly; 61. Screw rod; 62. Rotating plate; 63. Bending plate; 64. Purification plate; 65. Connecting column; 66. Filter plate. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] Reference Figure 1-2 The central cylinder of the circulating fluidized bed boiler provided by the utility model comprises a body 1, an air inlet pipe 2 is fixedly connected to the surface of the body 1, an air outlet pipe 3 is fixedly connected to the surface of the body 1, and a filter cylinder 4 is fixedly connected to the surface of the body 1;

[0027] A cleaning assembly 5 is provided on the surface of the filter cartridge 4, and the cleaning assembly 5 includes a motor 501, which is fixedly connected to the filter cartridge 4, and the end of the motor 501 is rotatably connected to an electric telescopic rod 502, and the end of the electric telescopic rod 502 away from the motor 501 is fixedly connected to a disc 503, and the side of the disc 503 away from the electric telescopic rod 502 is fixedly connected to an elastic sheet 504, and the end of the elastic sheet 504 away from the disc 503 is fixedly connected to a first cleaning plate 505, and the surface of the first cleaning plate 505 is slidably connected to a second cleaning plate 506, and the first cleaning plate 505 and the second cleaning plate 506 are slidably connected to the filter cartridge 4, and one end of the first cleaning plate 505 is fixedly connected to a spring 512, and the end of the spring 512 away from the first cleaning plate 505 is fixedly connected to the first cleaning plate 505.

[0028] During use, when the cleaning component 5 needs to be used, the motor 501 is first started, and the motor 501 will drive the electric telescopic rod 502. The electric telescopic rod 502 will drive the disc 503 during its movement. The disc 503 will drive the elastic sheet 504 during its movement. The elastic sheet 504 will drive the first cleaning plate 505 during its movement. At this time, the first cleaning plate 505 will drive the second cleaning plate 506. The first cleaning plate 505 and the second cleaning plate 506 will drive the brush 508 and the scraper 507 on the surface to clean along the arc surface of the filter cartridge 4. The elastic sheet 504 will use its own elasticity to make the first cleaning plate 505 and the second cleaning plate 506 move together. The cleaning plate 506 can always move along the arc surface of the filter cartridge 4 for cleaning. The first cleaning plate 505 and the second cleaning plate 506 can quickly clean the dust on the surface of the filter cartridge 4. The brush 508 can clean the tiny holes. The scraper 507 can uniformly scrape away the dust cleaned by the cleaning plate. The pull rod 510 and the pull plate 511 on the surface of the first cleaning plate 505 can prevent the first cleaning plate 505 and the second cleaning plate 506 from derailing. The spring 512 on the surface can keep the first cleaning plate 505 and the second cleaning plate 506 rebounding at all times.

[0029] Reference Figure 1-3 ,

[0030] A rectangular hole 509 is formed on the surface of the second cleaning plate 506 , a pull rod 510 is fixedly connected to the surface of the first cleaning plate 505 , and a pull plate 511 is fixedly connected to one end of the pull rod 510 away from the first cleaning plate 505 , and the size of the pull plate 511 is larger than that of the pull rod 510 .

[0031] The elastic sheet 504 is a spring sheet, and the elastic sheet 504 has strong elasticity.

[0032] The surfaces of the first cleaning plate 505 and the second telescopic plate are fixedly connected with a scraper 507, which is a rubber plate. The surfaces of the first cleaning plate 505 and the second cleaning plate 506 are fixedly connected with brushes 508, which are evenly arranged on the surfaces of the first cleaning plate 505 and the second cleaning plate 506.

[0033] Reference Figure 1-4 ,

[0034] A purification component 6 is provided on the surface of the air outlet pipe 3, and the purification component 6 includes a screw rod 61, which is threadedly connected to the air outlet pipe 3, and the end of the screw rod 61 away from the air outlet pipe 3 is fixedly connected to a rotating plate 62, and the surface of the rotating plate 62 is provided with an anti-slip protrusion, and the arc surface of the screw rod 61 is threadedly connected to a bending plate 63, and the surface of the bending plate 63 is fixedly connected to a purification plate 64, and the surface of the purification plate 64 is provided with a plurality of rectangular holes 509.

[0035] A connection column 65 is fixedly connected to the surface of the purification plate 64 , and a filter plate 66 is fixedly connected to one end of the connection column 65 away from the purification plate 64 . The purification plate 64 and the filter plate 66 are made of the same bamboo charcoal material.

[0036] During use, when the purification component 6 needs to be used, the purification plate 64 is first pressed, and the purification plate 64 plays a role in effectively purifying the blown air. During the movement of the purification plate 64, the connecting column 65 will be driven, and the connecting column 65 will drive the filter plate 66 while moving. The filter plate 66 plays a role in filtering the blown air. During the movement of the purification plate 64, the bending plate 63 will also be driven, and the purification plate 64 can only stop when it reaches the specified position. At this time, the rotating plate 62 is rotated. The rotating plate 62 will drive the screw rod 61 during the movement. The rotating plate 62 plays a role in facilitating the rotation of the screw rod 61. At this time, the screw rod 61 moves along the surface of the air outlet pipe 3 in the direction close to the bending plate 63 until the screw rod 61 passes through the air outlet pipe 3 and rests on the surface of the bending plate 63. The screw rod 61 can temporarily fix the position of the purification plate 64.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A central cylinder of a circulating fluidized bed boiler, comprising a body (1), characterized in that: An air inlet pipe (2) and an air outlet pipe (3) are fixedly connected to the surface of the machine body (1), and a filter cartridge (4) is fixedly connected to the surface of the machine body (1); A cleaning assembly (5) is provided on the surface of the filter cartridge (4). The cleaning assembly (5) comprises a motor (501). The motor (501) is fixedly connected to the filter cartridge (4). The end of the motor (501) is rotatably connected to an electric telescopic rod (502). An end of the electric telescopic rod (502) away from the motor (501) is fixedly connected to a disc (503). A surface of the disc (503) away from the electric telescopic rod (502) is fixedly connected to an elastic sheet (504). An end of the elastic sheet (504) away from the disc (503) is fixedly connected to a first cleaning plate (505). A second cleaning plate (506) is slidably connected to the surface of the first cleaning plate (505). The first cleaning plate (505) and the second cleaning plate (506) are slidably connected to the filter cartridge (4). One end of the first cleaning plate (505) is fixedly connected to a spring (512). An end of the spring (512) away from the first cleaning plate (505) is fixedly connected to the first cleaning plate (505).

2. The central tube of a circulating fluidized bed boiler according to claim 1, characterized in that: A rectangular hole (509) is provided on the surface of the second cleaning plate (506), a pull rod (510) is fixedly connected to the surface of the first cleaning plate (505), and a pull plate (511) is fixedly connected to one end of the pull rod (510) away from the first cleaning plate (505), and the size of the pull plate (511) is larger than the size of the pull rod (510).

3. The central tube of a circulating fluidized bed boiler according to claim 1, characterized in that: The elastic sheet (504) is a spring sheet, and the elastic sheet (504) has strong elasticity.

4. The central tube of a circulating fluidized bed boiler according to claim 1, characterized in that: A scraper (507) is fixedly connected to the surfaces of the first cleaning plate (505) and the second telescopic plate, and the scraper (507) is a rubber plate.

5. The central tube of a circulating fluidized bed boiler according to claim 1, characterized in that: Brushes (508) are fixedly connected to the surfaces of the first cleaning plate (505) and the second cleaning plate (506), and the brushes (508) are evenly arranged on the surfaces of the first cleaning plate (505) and the second cleaning plate (506).

6. The central tube of a circulating fluidized bed boiler according to claim 1, characterized in that: The surface of the air outlet pipe (3) is provided with a purification component (6), the purification component (6) comprising a screw rod (61), the screw rod (61) being threadedly connected to the air outlet pipe (3), one end of the screw rod (61) away from the air outlet pipe (3) being fixedly connected to a rotating plate (62), the surface of the rotating plate (62) being provided with anti-slip protrusions, the arc surface of the screw rod (61) being threadedly connected to a bending plate (63), the surface of the bending plate (63) being fixedly connected to a purification plate (64), and the surface of the purification plate (64) being provided with a plurality of rectangular holes (509).

7. The central tube of a circulating fluidized bed boiler according to claim 6, characterized in that: A connection column (65) is fixedly connected to the surface of the purification plate (64), and an end of the connection column (65) away from the purification plate (64) is fixedly connected to a filter plate (66), and the purification plate (64) and the filter plate (66) are made of uniform bamboo charcoal material.

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