Boiler coking monitoring device for soot blower

Abstract

The utility model discloses a boiler coking monitoring device for a soot blower, and relates to the technical field of boiler dust removal, the boiler coking monitoring device specifically comprises a fixed pipe and a soot cleaning structure, the outer ring of the fixed pipe is movably sleeved with a rotating ring and a protective cover, the rotating ring is fixedly connected with the protective cover, and the rotating ring is located in an inner cavity of the protective cover. Visual sensors are fixedly connected to the top and the two sides of the rotating ring. The ash removal structure comprises an ash removal plate I, an ash removal plate II and an overturning structure; one end of the fixing pipe is movably connected with a first ash removal plate, and the other end of the fixing pipe is movably connected with a second ash removal plate. According to the boiler coking monitoring device for the soot blower, through the arrangement of the soot cleaning structure, cleaning of the protective cover can be achieved, attached dust is prevented from affecting use of the visual sensor, the use effect of the visual sensor is guaranteed, compressed air flowing in the soot blower serves as a power source of the soot cleaning structure, the soot cleaning structure does not need to additionally consume energy, and the cost is reduced. The energy loss of the device is reduced, and resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler dust removal, in particular to a boiler coking monitoring device for a soot blower. Background Technique

[0002] A soot blower is a device for cleaning the accumulated ash inside a boiler. For a coal-fired boiler, coking in the furnace combustion and ash accumulation on the heating surface are common and inevitable phenomena. When coking is severe, the flue passage of some heating surfaces will be blocked. Therefore, it is necessary to use a soot blower to blow off the coking so as to achieve the effect of dust removal for the boiler. However, before the soot blower cleans the boiler, it is usually necessary to use a monitoring device to monitor the coking state of the boiler around the soot blower.

[0003] In the related art, some boiler coking monitoring devices for soot blowers directly observe the coking state of the boiler heating surface through a video monitor (such as a camera). When the coking state reaches the defouling condition, the soot blower performs defouling operations. However, since the video monitor is in a high-temperature environment, its working environment is relatively harsh, reducing its service life; and during the soot blowing process, dust splashes everywhere and is easily adhered to the image acquisition part of the video monitor, affecting the use effect of the video monitor. Based on this, this application proposes a boiler coking monitoring device for a soot blower. Content of the Utility Model

[0004] The utility model provides a boiler coking monitoring device for a soot blower, which solves the problems that the video monitor is in a high-temperature environment, its working environment is relatively harsh, reducing its service life; and during the soot blowing process, dust splashes everywhere and is easily adhered to the image acquisition part of the video monitor, affecting the use effect of the video monitor as mentioned in the above background technique.

[0005] The utility model provides the following technical solution: A boiler coking monitoring device for a soot blower includes a fixed pipe and a dust cleaning structure. A rotating ring and a protective cover are movably sleeved on the outer circle of the fixed pipe. The rotating ring is fixedly connected to the protective cover, and the rotating ring is located inside the cavity of the protective cover. Visual sensors are fixedly connected to the top and both sides of the rotating ring.

[0006] The dust cleaning structure includes a first dust cleaning plate, a second dust cleaning plate and a flipping structure. One end of the fixed pipe is movably connected to the first dust cleaning plate, and the other end of the fixed pipe is movably connected to the second dust cleaning plate. Air inlet pipes are movably connected to one ends of both the first dust cleaning plate and the second dust cleaning plate. Rotating shafts are fixedly connected to the other ends of both the first dust cleaning plate and the second dust cleaning plate. Flipping structures are provided at both ends of the fixed pipe. The flipping structure includes a first gear fixedly connected to the end of the rotating shaft, a pneumatic telescopic rod, and a toothed plate fixedly connected to the end of the output shaft of the pneumatic telescopic rod. The toothed plate meshes with the first gear.

[0007] Preferably, the pneumatic telescopic rod includes a fixed sleeve fixedly connected to the fixed pipe, an output shaft movably connected to the inner cavity of the fixed sleeve, and an air inlet pipe. The output shaft is connected to the inner cavity of the fixed sleeve by a spring. An air inlet hole is provided at one end of the fixed sleeve away from the output shaft, and the air inlet pipe is fixedly connected to the outside of the air inlet hole.

[0008] Preferably, the protective cover is made of a transparent material, and heat insulation coatings are applied to the outer surface of the protective cover and the outer surface of the fixed pipe.

[0009] Preferably, a toothed ring is fixedly connected to one end of the rotating ring, a servo motor is fixedly connected to the outer surface of the fixed pipe, a second gear is fixedly connected to the end of the output shaft of the servo motor, and the second gear meshes with the toothed ring.

[0010] Preferably, both the servo motor and the second gear are located inside the protective cover. A connecting piece is fixedly connected to the side of the rotating ring away from the servo motor, and the other end of the connecting piece is fixedly connected to the inner wall of the protective cover.

[0011] Preferably, when the first soot cleaning plate is in a vertical state, the top of the first soot cleaning plate is located above the protective cover. The protective cover is located between the first soot cleaning plate and the second soot cleaning plate. Exhaust holes are uniformly arranged on the side of the inner cavities of the first soot cleaning plate and the second soot cleaning plate close to the protective cover.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] 1. For the boiler fouling monitoring device of the soot blower, through the setting of the protective cover, the protective cover can protect the vision sensor and the servo motor, reduce the influence of the boiler heat on the electrical components in the device, and extend the service life of the power supply components in the device.

[0014] 2. For the boiler fouling monitoring device of the soot blower, through the setting of the soot cleaning structure, the cleaning of the protective cover can be realized, avoiding the influence of the attached dust on the use of the vision sensor, ensuring the use effect of the vision sensor, and the soot cleaning structure uses the compressed air flowing in the soot blower as the power source, and the soot cleaning structure does not require additional energy consumption, reducing the energy loss of the device and saving resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the structure of the present utility model;

[0016] Figure 2 It is a schematic diagram of the use of the structure of the present utility model;

[0017] Figure 3 It is the structure of the present utility model Figure 1 Cross-sectional view;

[0018] Figure 4This is the front view schematic diagram of the structure of the present utility model;

[0019] Figure 5 This is the schematic cross-sectional view of the pneumatic telescopic rod of the structure of the present utility model.

[0020] In the figure: 1, fixed pipe; 2, protective cover; 3, pneumatic telescopic rod; 4, second ash cleaning plate; 5, first ash cleaning plate; 6, air inlet pipe; 7, connecting piece; 8, servo motor; 9, toothed ring; 10, rotating ring; 11, vision sensor; 12, output shaft; 13, air inlet hole; 14, fixed sleeve; 15, spring; 16, first gear; 17, toothed plate; 18, air inlet duct. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] The present utility model provides a boiler coking monitoring device for soot blowers, including a fixed pipe 1 and a soot cleaning structure. A rotating ring 10 and a protective cover 2 are movably sleeved on the outer circle of the fixed pipe 1. The rotating ring 10 is located inside the protective cover 2. One end of the rotating ring 10 is fixedly connected to a connecting piece 7, and the other end of the connecting piece 7 is fixedly connected to the inner wall of the protective cover 2. Through the setting of the connecting piece 7, the rotating ring 10 is fixedly connected to the protective cover 2.

[0023] One end of the rotating ring 10 is fixedly connected to a toothed ring 9. A servo motor 8 is fixedly connected to the outer surface of the fixed pipe 1. The end of the output shaft of the servo motor 8 is fixedly connected to a second gear through a reducer. The second gear meshes with the toothed ring 9, and the servo motor 8 is located on the side of the rotating ring 10 away from the connecting piece 7. Through the setting of the servo motor 8, the rotation of the servo motor 8 can drive the second gear fixedly connected thereto to rotate. The second gear can drive the rotating ring 10 to rotate through the toothed ring 9 meshing therewith, and the rotating ring 10 drives the protective cover 2 to rotate. And both the servo motor 8 and the second gear are located inside the protective cover 2.

[0024] Vision sensors 11 are fixedly connected to the top and both sides of the rotating ring 10. This device uses the vision sensors 11 to monitor the coking in the boiler in real time, and the state of coking in the boiler can be understood in real time according to the monitoring results of the vision sensors 11.

[0025] The dust cleaning structure includes a first dust cleaning plate 5, a second dust cleaning plate 4 and a flipping structure. One end of the fixed pipe 1 is movably connected to the first dust cleaning plate 5, and the other end of the fixed pipe 1 is movably connected to the second dust cleaning plate 4. One end of both the first dust cleaning plate 5 and the second dust cleaning plate 4 is movably connected to the air inlet pipe 18. The other ends of both the first dust cleaning plate 5 and the second dust cleaning plate 4 are fixedly connected to a rotating shaft. Flipping structures are provided at both ends of the fixed pipe 1. The flipping structure includes a first gear 16 fixedly connected to the end of the rotating shaft, a pneumatic telescopic rod 3, and a toothed plate 17 fixedly connected to the end of the output shaft of the pneumatic telescopic rod 3. The toothed plate 17 meshes with the first gear 16. The pneumatic telescopic rod 3 includes a fixed sleeve 14 fixedly connected to the fixed pipe 1, an output shaft 12 movably connected to the inner cavity of the fixed sleeve 14, and an air inlet pipe 6. The output shaft 12 is connected to the inner cavity of the fixed sleeve 14 through a spring 15. An air inlet hole 13 is provided at one end of the fixed sleeve 14 away from the output shaft 12, and the air inlet pipe 6 is fixedly connected to the outside of the air inlet hole 13. Through the setting of the flipping structure, when compressed air is introduced into the air inlet pipe 6, the compressed air can enter the inner cavity of the pneumatic telescopic rod 3 along the air inlet pipe 6, and the pneumatic telescopic rod 3 can be extended. When the pneumatic telescopic rod 3 extends, the pneumatic telescopic rod 3 can drive the toothed plate 17 fixedly connected thereto to rotate. The toothed plate 17 drives the rotating shaft to rotate through the first gear 16 meshing therewith. The rotating shaft drives the first dust cleaning plate 5 or the second dust cleaning plate 4 fixedly connected thereto, changing the states of the first dust cleaning plate 5 and the second dust cleaning plate 4, so that the first dust cleaning plate 5 and the second dust cleaning plate 4 are in a vertical state, facilitating the dust cleaning of the protective cover 2.

[0026] And when the first dust cleaning plate 5 is in a vertical state, the top end of the first dust cleaning plate 5 is located above the protective cover 2. The side wall and the top of the protective cover 2 can be dust-cleaned by using the first dust cleaning plate 5. The protective cover 2 is located between the first dust cleaning plate 5 and the second dust cleaning plate 4. Exhaust holes are evenly provided on one side of the inner cavities of both the first dust cleaning plate 5 and the second dust cleaning plate 4 close to the protective cover 2. The gas entering the first dust cleaning plate 5 or the second dust cleaning plate 4 along the air inlet pipe 18 can be discharged through the exhaust holes.

[0027] The protective cover 2 is made of a transparent material, and the material of the protective cover 2 can be high-temperature glass. Heat insulation coatings are applied to the outer surface of the protective cover 2 and the outer surface of the fixed pipe 1 to reduce the influence of the heat of the boiler on the visual sensor 11 and the servo motor 8, so that the device can work normally.

[0028] All the electrical components involved in this application are prior arts. Those skilled in the art understand their connection methods. Through those skilled in the art, all the electrical components in this application are connected to their adapted power supplies through wires, and a suitable controller is selected according to the actual situation to meet the control requirements. For the specific connection and control sequence, refer to the following description. The electrical components are electrically connected in the order of their successive operations. Their detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and no further description of electrical control will be made.

[0029] In summary: When the boiler fouling monitoring device for soot blowers is in use, fix the device on the soot blower as shown in the appendix Figure 2 and connect the other ends of the air inlet pipe 18 and the air inlet tube 6 to the inner cavity of the soot blower. During the use of the device, the servo motor 8 drives the vision sensor 11 to rotate, and the vision sensor 11 is used to detect the boiler fouling state around the soot blower. When the boiler fouling needs to be cleaned, the compressed air introduced into the soot blower can enter the pneumatic telescopic rod 3 along the air inlet tube 6, causing the pneumatic telescopic rod 3 to extend. The pneumatic telescopic rod 3 drives the toothed plate 17 fixedly connected thereto to move. The toothed plate 17 drives the rotating shaft to rotate through the first gear 16 meshed therewith. The rotating shaft drives the first soot cleaning plate 5 or the second soot cleaning plate 4 fixedly connected thereto to rotate until both the first soot cleaning plate 5 and the second soot cleaning plate 4 are in a vertical state. The compressed air in the soot blower can enter the inner cavity of the first soot cleaning plate 5 or the inner cavity of the second soot cleaning plate 4 along the air inlet pipe 18. The air in the inner cavity of the first soot cleaning plate 5 is sprayed onto the outer side wall of the protective cover 2 and the side of the protective cover 2 close to the first soot cleaning plate 5 through the exhaust holes. The air in the second soot cleaning plate 4 is sprayed onto the side of the protective cover 2 close to the second soot cleaning plate 4 through the exhaust holes. The combined use of the first soot cleaning plate 5 and the second soot cleaning plate 4 realizes the soot cleaning of the protective cover 2, facilitating the use of the vision sensor 11.

[0030] All standard parts used in the present utility model can be purchased from the market. Special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A boiler coking monitoring device for a sootblower, comprising a fixed pipe (1) and a soot cleaning structure, characterized in that: The outer ring of the fixed tube (1) is movably sleeved with a swivel (10) and a protective cover (2); the swivel (10) is fixedly connected to the protective cover (2), and the swivel (10) is located in the inner cavity of the protective cover (2); and the top and both sides of the swivel (10) are fixedly connected with visual sensors (11); The cleaning structure comprises a cleaning plate one (5), a cleaning plate two (4) and a flipping structure; one end of the fixed tube (1) is movably connected to the cleaning plate one (5), and the other end of the fixed tube (1) is movably connected to the cleaning plate two (4); one end of both the cleaning plate one (5) and the cleaning plate two (4) is movably connected to an air inlet pipe (18); the other ends of both the cleaning plate one (5) and the cleaning plate two (4) are fixedly connected to a rotating shaft; both ends of the fixed tube (1) are provided with a flipping structure; the flipping structure comprises a gear one (16) fixedly connected to the end of the rotating shaft, a pneumatic telescopic rod (3) and a tooth plate (17) fixedly connected to the end of the output shaft of the pneumatic telescopic rod (3); the tooth plate (17) is meshed with the gear one (16).

2. A boiler coking monitoring device for a sootblower according to claim 1, characterized in that: The pneumatic telescopic rod (3) comprises a fixing sleeve (14) fixedly connected to a fixing tube (1), an output shaft (12) movably connected to an inner cavity of the fixing sleeve (14), and an air intake pipe (6); the output shaft (12) and the inner cavity of the fixing sleeve (14) are connected via a spring (15); an air intake hole (13) is provided at one end of the fixing sleeve (14) away from the output shaft (12); and the outer side of the air intake hole (13) is fixedly connected to the air intake pipe (6).

3. A boiler coking monitoring device for a sootblower according to claim 1, characterized in that: The protective cover (2) is made of a transparent material, and the outer surface of the protective cover (2) and the outer surface of the fixed pipe (1) are both coated with a heat insulation coating.

4. A boiler coking monitoring device for a sootblower according to claim 1, characterized in that: One end of the rotating ring (10) is fixedly connected to a gear ring (9), the outer surface of the fixed tube (1) is fixedly connected to a servo motor (8), the end of the output shaft of the servo motor (8) is fixedly connected to a second gear, and the second gear is meshed with the gear ring (9).

5. A boiler coking monitoring device for a sootblower according to claim 4, characterized in that: The servo motor (8) and gear 2 are both located in the inner cavity of the protective cover (2); a connecting piece (7) is fixedly connected to the side of the rotating ring (10) away from the servo motor (8); and the other end of the connecting piece (7) is fixedly connected to the inner wall of the protective cover (2).

6. The boiler coking monitoring device for sootblower according to claim 1, characterized in that: When the cleaning plate 1 (5) is in a vertical state, the top end of the cleaning plate 1 (5) is located above the protective cover (2), and the protective cover (2) is located between the cleaning plate 1 (5) and the cleaning plate 2 (4). Exhaust holes are evenly arranged on one side of the inner cavity of the cleaning plate 1 (5) and the cleaning plate 2 (4) close to the protective cover (2).

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