Rake type soot blower

Abstract

The utility model relates to a rake type soot blowing device which comprises a rake type soot blower body, a movable support, a soot blowing main pipe arranged on the movable support, multiple sets of rotating rods, soot blowing branch pipes arranged on the rotating rods and a driving assembly used for driving the rotating rods to rotate are arranged on the rake type soot blower body, and the movable support is slidably connected to the rake type soot blower body. The multiple sets of rotating rods are arranged on the movable support in the length direction of the movable support, each set of rotating rods comprises two rotating rods, the two rotating rods are arranged on the two sides of the movable support respectively, the rotating rods are rotationally connected to the movable support in the direction perpendicular to the length direction of the movable support, and the soot blowing branch pipes communicate with the soot blowing main pipe. A plurality of first air blowing openings are formed in the lower side of the rotating rod and communicate with the soot blowing branch pipes, and the driving assembly is arranged on the movable support. The soot blower has the effect of increasing the soot cleaning area of the soot blower.

Description

Technical Field

[0001] The present application relates to the technical field of rake-type sootblowers, and in particular to a rake-type sootblower. Background Art

[0002] In the heating furnaces in the petrochemical industry, the heating furnaces in the power industry, the convection tube bundles on the boilers, the air preheaters, etc., soot blowers are generally used to remove ash and slag from their surfaces, thereby reducing the temperature of the exhaust gas and improving the thermal efficiency of the heating furnaces and boilers, so as to achieve the purpose of reducing energy consumption, saving energy and reducing emissions.

[0003] A Chinese patent with application number 201720855584.X discloses an intelligent rake sootblower, which includes a sootblower body and a control system. The sootblower body includes a housing, a motor, a transmission device and a sootblower. The motor is connected to the transmission device, the transmission device is connected to the sootblower, and a sensor block is provided on the sootblower. The control system includes a controller, a solenoid valve, a first proximity switch, and a second proximity switch; the solenoid valve is arranged on a connecting pipe between the sootblower and an air source, the first proximity switch and the second proximity switch are adapted to the sensor block, and the first proximity switch and the second proximity switch are arranged on the inner wall of the housing.

[0004] During the operation of the rake-type sootblower, since the sootblowing rod is fixed and cannot be rotated, the sootblower can only blow soot below the sootblower, resulting in a low sootblowing effect.

[0005] Therefore, it is necessary to propose a new technical solution to solve the above problems. Utility Model Content

[0006] In order to enhance the soot cleaning effect of a rake sootblower, the present application provides a rake sootblower device.

[0007] The present application provides a rake-type sootblowing device, which adopts the following technical solution:

[0008] The yoke is provided with a plurality of rotating shafts, a plurality of rotating shafts, a plurality of rotating shafts and a plurality of rotating shafts for driving the rotating shafts to rotate. The movable bracket is slidably connected to the movable bracket, and the plurality of rotating shafts are arranged on the movable bracket along the length direction of the movable bracket. Each group of rotating shafts includes two rotating shafts, which are respectively arranged on both sides of the movable bracket. The rotating shafts are rotatably connected to the movable bracket in a direction perpendicular to the length direction of the movable bracket. The soot blowing branches are all connected to the soot blowing main pipe. A plurality of first blowing ports are provided on the lower side of the rotating shaft, and the first blowing ports are connected to the soot blowing branches. The driving assembly is arranged on the movable bracket.

[0009] By adopting the above technical solution, the rotating rod is rotatably connected to the movable bracket, and the first air outlet on the rotating rod is driven to rotate by the rotation of the rotating rod, thereby achieving dust cleaning on the upper and lower sides of the rotating rod.

[0010] Optional: The driving assembly includes a rotating shaft and a motor for driving the rotating shaft to rotate, the rotating shaft is rotatably connected to the movable bracket, the rotation axis of the rotating shaft is parallel to the moving direction of the movable bracket, a first bevel gear is provided at one end of the rotating rod close to the movable bracket, a plurality of second bevel gears for meshing with the first bevel gear are fixedly provided on the rotating shaft, the motor is fixedly provided on the movable bracket, and the output shaft of the motor is coaxially fixedly connected to the rotating shaft.

[0011] By adopting the above technical solution, the motor drives the rotating shaft to rotate, and the rotating shaft further drives the rotating rod to rotate during the rotation process. By connecting multiple rotating rods to the same rotating shaft, synchronous control of the rotation of multiple rotating rods is achieved.

[0012] Optionally: a plurality of three-way interfaces are provided on the sootblowing main pipe, and a telescopic rod is rotatably provided at one end of the sootblowing branch pipe close to the movable bracket, and an end of the telescopic rod away from the sootblowing branch pipe is rotatably connected to the three-way interface.

[0013] By adopting the above technical solution, the cleaning branch pipes on each set of rotating rods are connected to the soot blowing main pipe through the telescopic rod. By arranging the telescopic rod instead of the ordinary air pipe, the air pipe can be prevented from getting entangled during the rotation of the rotating rod, affecting the operation of the equipment and increasing the maintenance cost.

[0014] Optionally: the outer end of the telescopic rod is sleeved with a sealing sleeve.

[0015] By adopting the above technical solution, the sealing effect of the telescopic rod is further enhanced.

[0016] Optionally: a limit block is provided inside the telescopic rod for limiting the telescopic length of the telescopic rod.

[0017] By adopting the above technical solution, when the telescopic rod reaches the maximum length, the rotation position of the rotating rod is limited.

[0018] Optionally: a second blowing part is provided at one end of the rotating rod away from the movable bracket, a second blowing port is provided at a side of the second blowing part away from the movable bracket, and the second blowing port is connected to the soot blowing branch pipe.

[0019] By adopting the above technical solution, a second blowing port is provided on the second blowing part to further perform dust cleaning on both sides of the rotating rod.

[0020] Optionally: a plurality of the second blowing outlets are arranged on the second blowing part, and the plurality of the second blowing outlets are arranged in a vertical direction.

[0021] By adopting the above technical solution, a plurality of second blowing ports are provided to increase the blowing area of ​​the second blowing part, thereby further enhancing the dust cleaning effect of the second blowing part.

[0022] Optionally: a fixing ring is sleeved on the rotating rod, a reinforcing rod is fixedly provided on the fixing ring, and one end of the reinforcing rod away from the fixing ring is fixedly connected to the movable bracket.

[0023] By adopting the above technical solution, the reinforcing rod and the fixing ring cooperate with each other to achieve a supporting effect on the rotating rod, thereby ensuring the stability of the rotating rod during the rotation process.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The present application realizes soot blowing on the upper and lower sides of the rotating rod by setting the rotating rod to rotate and arranging a driving assembly for driving the rotating rod to rotate on the movable bracket.

[0026] 2. The present application further increases the dust cleaning area of ​​the equipment by providing a second blowing part at the end of the rotating rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0028] Figure 2 This is a schematic diagram of the structure of the driving component of an embodiment of the present application;

[0029] Figure 3 This is a schematic diagram of the cross-sectional structure of the rotating shaft portion of an embodiment of the present application;

[0030] Figure 4This is a schematic diagram of a partial cross-sectional structure of a telescopic rod according to an embodiment of the present application;

[0031] Figure 5 for Figure 1 Schematic diagram of the enlarged structure of part A.

[0032] In the figure, 1. rake type sootblower body; 2. movable bracket; 3. rotating rod; 31. first bevel gear; 32. first blowing port; 33. second blowing part; 331. second blowing port; 4. sootblowing main pipe; 41. three-way interface; 5. sootblowing branch pipe; 52. telescopic rod; 521. sealing sleeve; 522. limit block; 6. driving assembly; 61. rotating shaft; 611. second bevel gear; 62. motor; 7. fixing ring; 8. reinforcing rod. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with the accompanying drawings.

[0034] The present application discloses a rake-type sootblowing device, such as Figure 1 and Figure 2 As shown, it includes a rake sootblower body 1, on which a movable bracket 2, a sootblowing main pipe 4 arranged on the movable bracket 2, multiple groups of rotating rods 3, a sootblowing branch pipe 5 arranged on the rotating rod 3 and a driving assembly 6 for driving the rotating rod 3 to rotate are arranged. The movable bracket 2 is connected to the rake sootblower body 1 along a horizontal sliding connection, and multiple groups of rotating rods 3 are evenly arranged on the movable bracket 2 along the length direction of the movable bracket 2, wherein one group of rotating rods 3 is arranged at one end of the movable bracket 2 away from the rake sootblower body 1, wherein each group of rotating rods 3 includes two rotating rods 3, and the two rotating rods 3 are respectively arranged on both sides of the length direction of the movable bracket 2, and a bearing is fixedly arranged at one end of the rotating rod 3 close to the movable bracket 2, and a rotation connection between the rotating rod 3 and the movable bracket 2 is realized by the bearing, and the rotation axis of the rotating rod 3 is perpendicular to the length direction of the movable bracket 2.

[0035] like Figure 2 and Figure 3As shown, a first bevel gear 31 is provided at one end of the rotating rod 3 close to the movable bracket 2, and the first bevel gear 31 passes through the outer wall of the movable bracket 2 and is connected to the movable bracket 2. The driving assembly 6 includes a rotating shaft 61 and a motor 62 for driving the rotating shaft 61 to rotate. The motor 62 is fixedly arranged on the movable bracket 2, and the rotating shaft 61 is rotatably connected to the movable bracket 2. The rotation axis direction of the rotating shaft 61 is parallel to the moving direction of the movable bracket 2, and the output shaft of the motor 62 is coaxially fixedly connected to one end of the rotating shaft 61. A plurality of second bevel gears 611 for matching with the first bevel gear 31 are provided on the rotating shaft 61, and each second bevel gear 611 is respectively meshed with the two first bevel gears 31 on each group of rotating rods 3, and the two rotating rods 3 of each group are driven to rotate synchronously through the rotation of the rotating shaft 61. In order to further enhance the rotational stability of the rotating rod 3 and extend the service life of the rotating rod 3, a fixing ring 7 is sleeved on the rotating rod 3, and the fixing ring 7 and the rotating rod 3 are rotatably connected. Two reinforcing rods 8 are arranged on both sides of the fixing ring 7, and one end of the reinforcing rod 8 away from the fixing ring 7 is fixedly connected to the movable bracket 2, so as to further support the rotating rod 3 and improve the rotational stability of the rotating rod 3.

[0036] like Figure 3 and Figure 4 As shown, the soot blowing main pipe 4 is fixedly arranged on the mobile bracket 2 along the length direction of the mobile bracket 2, and a plurality of three-way interfaces 41 are arranged on the upper side of the soot blowing main pipe 4. A telescopic rod 52 is arranged at one end of the soot blowing branch pipe 5 close to the mobile bracket 2. The telescopic rod 52 and the soot blowing branch pipe 5 are rotatably connected. The end of the telescopic rod 52 away from the soot blowing branch pipe 5 is rotatably connected to the three-way interface 41. The air in the soot blowing main pipe 4 is transported to the soot blowing branch pipe 5 through the telescopic rod 52. Since the two rotating rods 3 in each group of rotating rods 3 rotate in opposite directions, the lower ends of the two telescopic rods 52 in each group of rotating rods 3 are respectively inclined toward both sides. In order to further enhance the air tightness of the telescopic rod 52, a sealing sleeve 521 is sleeved on the outer side of the telescopic rod 52. At the same time, in order to limit the rotation position of the rotating rod 3, a limit block 522 for limiting the telescopic length of the telescopic rod 52 is arranged in the telescopic rod 52. When the telescopic rod 52 reaches the maximum length, the rotating rod 3 stops rotating.

[0037] like Figure 5 As shown, a plurality of first air blowing ports 32 are arranged on the lower side of the rotating rod 3, and the first air blowing ports 32 are evenly arranged along the length direction of the rotating rod 3. The plurality of first air blowing ports 32 are all connected to the soot blowing branch pipe 5. The air in the soot blowing branch pipe 5 is blown out through the first air blowing ports 32 to clean the equipment to be cleaned.

[0038] In order to further enhance the dust cleaning effect, a second blowing part 33 is provided at one end of the rotating rod 3 away from the movable bracket 2, and a plurality of second blowing ports 331 are provided on the side of the second blowing part 33 away from the movable bracket 2. The plurality of second blowing ports 331 are evenly arranged on the second blowing part 33 along the vertical direction, and the second blowing ports 331 are all connected to the blowing branch pipe on the rotating rod 3. The second blowing part 33 is provided to increase the dust blowing area and improve the dust cleaning effect.

[0039] The implementation principle of this embodiment is:

[0040] The rake sootblower body 1 delivers air to the sootblowing main pipe 4, and the air in the sootblowing main pipe 4 is delivered to the sootblowing branch pipe 5 after passing through the telescopic rod 52. The air in the sootblowing branch pipe 5 is cleaned in the soot-to-be-cleaned equipment through the first air blowing port 32 and the second air blowing port 331. The motor 62 drives the rotating shaft 61 to rotate, and the rotating shaft 61 drives the two rotating rods 3 of each group to rotate 180 degrees in opposite directions during the rotation process, thereby achieving soot cleaning on both the upper and lower sides of the rotating rod 3.

[0041] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rake sootblower device, comprising a rake sootblower body (1), characterized in that: The rake sootblower body (1) is provided with a movable bracket (2), a sootblowing main pipe (4) arranged on the movable bracket (2), a plurality of groups of rotating rods (3), a sootblowing branch pipe (5) arranged on the rotating rods (3) and a driving assembly (6) for driving the rotating rods (3) to rotate. The movable bracket (2) is slidably connected to the rake sootblower body (1). The plurality of groups of rotating rods (3) are arranged on the movable bracket (2) along the length direction of the movable bracket (2). Each group of rotating rods (3) is The invention comprises two rotating rods (3), the two rotating rods (3) are respectively arranged on both sides of the movable bracket (2), the rotating rods (3) are rotatably connected to the movable bracket (2) in a direction perpendicular to the length of the movable bracket (2), the soot blowing branch pipes (5) are all connected to the soot blowing main pipe (4), a plurality of first blowing ports (32) are arranged on the lower side of the rotating rods (3), the first blowing ports (32) are connected to the soot blowing branch pipes (5), and the driving component (6) is arranged on the movable bracket (2).

2. A rake-type sootblower according to claim 1, characterized in that: The driving assembly (6) comprises a rotating shaft (61) and a motor (62) for driving the rotating shaft (61) to rotate; the rotating shaft (61) is rotatably connected to the movable bracket (2); the rotating axis of the rotating shaft (61) is parallel to the moving direction of the movable bracket (2); a first bevel gear (31) is arranged at one end of the rotating rod (3) close to the movable bracket (2); a plurality of second bevel gears (611) for meshing with the first bevel gear (31) are fixedly arranged on the rotating shaft (61); the motor (62) is fixedly arranged on the movable bracket (2); and the output shaft of the motor (62) is coaxially fixedly connected to the rotating shaft (61).

3. A rake-type sootblower according to claim 1, characterized in that: The sootblowing main pipe (4) is provided with a plurality of three-way interfaces (41); one end of the sootblowing branch pipe (5) close to the movable bracket (2) is provided with a telescopic rod (52) which is rotatably arranged; and one end of the telescopic rod (52) away from the sootblowing branch pipe (5) is rotatably connected to the three-way interface (41).

4. A rake-type sootblower according to claim 3, characterized in that: The outer end of the telescopic rod (52) is sleeved with a sealing sleeve (521).

5. A rake-type sootblower according to claim 3, characterized in that: A limit block (522) for limiting the telescopic length of the telescopic rod (52) is arranged inside the telescopic rod (52).

6. A rake-type sootblower according to claim 1, characterized in that: A second blowing portion (33) is provided at one end of the rotating rod (3) away from the movable bracket (2), a second blowing port (331) is provided at a side of the second blowing portion (33) away from the movable bracket (2), and the second blowing port (331) is connected to the soot blowing branch pipe (5).

7. A rake-type sootblower according to claim 6, characterized in that: The second blowing portion (33) is provided with a plurality of the second blowing ports (331), and the plurality of the second blowing ports (331) are arranged in a vertical direction.

8. The rake-type sootblower according to claim 1, characterized in that: A fixing ring (7) is sleeved on the rotating rod (3), a reinforcing rod (8) is fixedly arranged on the fixing ring (7), and one end of the reinforcing rod (8) away from the fixing ring (7) is fixedly connected to the movable bracket (2).

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