Steam soot blower for boiler

Abstract

The invention discloses a steam soot blower for a boiler, and belongs to the field of boiler cleaning. According to the technical scheme, the steam soot blower for the boiler comprises a support base and a hydraulic lifting air cylinder, a soot cleaning component is arranged above the hydraulic lifting air cylinder in a matched mode, and the function of cleaning the interior of the boiler is achieved. According to the device, the structure of the boiler interior ash removal device is optimized, and by arranging double ash removal components, boiler interior ash removal work under different requirements can be achieved, so that the overall boiler interior ash removal efficiency is improved; meanwhile, the coverage area of all the components is wide, dead corners in the boiler can be cleaned, and therefore the overall fuel combustion efficiency in the boiler is further improved; the device is reasonable in mechanical structure and convenient to operate and has popularization value.

Description

Technical Field

[0001] The present invention relates to the field of boiler cleaning, in particular to a steam soot blowing device for a boiler. Background Art

[0002] During the production and operation of boilers (such as marine boilers, locomotive boilers, etc.), dust will accumulate on the surfaces of the heating surfaces and flues. The additional thermal resistance caused by the accumulation of dust in the boiler will also seriously affect the heat transfer inside and outside the heating surface of the boiler, causing the exhaust gas temperature to increase and the thermal efficiency of the boiler to decrease. At the same time, the accumulation of dust will further cause high and low temperature corrosion on the heating surface, and the boiler tubes will frequently burst and leak. In severe cases, the boiler may even be forced to shut down for cleaning and tube bursting, which will greatly shorten the operation cycle. During the operation of the boiler, dust is usually easily accumulated on the surface of the evaporator tubes that absorb high-temperature steam. The evaporator tubes are generally coils and are not easy to clean. At present, the main method is to blow soot inside the boiler by steam soot blowing to achieve the soot cleaning function. However, the internal soot cleaning devices of the boilers currently used often have the problem of incomplete cleaning and poor soot cleaning performance, which leads to dust in many corners and easily leads to dust accumulation. Summary of the Invention

[0003] In view of the problems existing in the prior art, the present invention provides a steam soot blowing device for a boiler, which realizes a high-efficiency soot cleaning function inside the boiler by arranging double soot cleaning components, thereby improving the overall soot cleaning efficiency inside the boiler.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A steam sootblowing device for a boiler, comprising: Bracket base; a matching track is provided on the inner side of the upper part of the bracket base, and the matching track is vertically provided on the inner side of the bracket base; A dust cleaning trough is provided in cooperation with the inner position of the bracket base, the dust cleaning trough is used to store dust, and a positioning threaded hole is provided in cooperation with the right end of the dust cleaning trough; A hydraulic lifting cylinder is provided on the inner side of the support base, and the hydraulic lifting cylinder is connected to the matching rail; A protective cover is provided on the outside of the hydraulic lifting cylinder, and provides an anti-interference function for the inner components; A primary ash cleaning component is provided in cooperation with the interior of the protective cover, and the primary ash cleaning component performs a preliminary ash cleaning function on the interior of the boiler; The secondary ash cleaning component is arranged in front of the primary ash cleaning component, and the secondary ash cleaning component realizes a secondary ash cleaning function for the interior of the boiler.

[0005] Preferably, the first-level cleaning component includes a fixed bracket, a rotating head, a support arm and a cleaning nozzle. The fixed bracket is arranged at an internal position of the protective cover, the front end of the fixed bracket is provided with a rotating head, the outer wall of the rotating head is provided with a support arm, and the support arm is provided with a cleaning nozzle. The cleaning nozzle performs preliminary cleaning work on the inside of the boiler.

[0006] Preferably, the secondary cleaning component includes an ash storage bin, a matching connecting rod, a microcontroller and an independent cleaning unit. The ash storage bin is matched with the rotating head, and matching connecting rods are extended outward on both sides of the ash storage bin. A microcontroller is matched on the other side of the matching connecting rod, and a plurality of evenly distributed independent cleaning units are provided at the upper end of the microcontroller.

[0007] Preferably, the matching connecting rod is connected to the ash storage bin via a fixed axis pin, and the maximum rotation angle of the matching connecting rod is 45°.

[0008] Preferably, the matching connecting rods at adjacent positions rotate in opposite directions.

[0009] Preferably, the independent cleaning unit includes a high-speed motor, a rotor, blades, an air intake duct, a support rod, an air flow sensor and a filter. The high-speed motor is arranged at the innermost position of the independent cleaning unit. The outer output end of the high-speed motor is provided with a rotor and blades. The blades and the rotor are coaxially arranged. The air intake duct is provided at the outer side of the rotor, and the support rod is provided at the outer side of the air intake duct. The air flow sensor is provided at the inner wall of the air intake duct, and the filter is provided at the outer side of the air flow sensor.

[0010] Preferably, an activated carbon adsorption net and a nano-scale metal net are provided inside the filter net, and the nano-scale metal net is cooperatively provided inside the activated carbon adsorption net.

[0011] Preferably, the filter screen is parallel to the outermost height of the independent cleaning unit.

[0012] Preferably, a dust cleaning pipe is provided at the inner side of the mating connecting rod, one end of the dust cleaning pipe is matingly connected to the dust storage bin, and the other end is matingly connected to the inside of the microcontroller.

[0013] Preferably, a guide rail groove is provided at the bottom of the bracket base and is engaged with the inner wall of the boiler.

[0014] Compared with the prior art, the present invention provides a steam soot blowing device for a boiler, which has the following beneficial effects: the device optimizes the structure of the boiler internal soot cleaning device, and by setting up double soot cleaning components, it can realize the boiler internal soot cleaning work under different requirements, thereby improving the overall soot cleaning efficiency inside the boiler; at the same time, each component has a wide coverage area, and can clean the dead corners inside the boiler, thereby further improving the overall fuel combustion efficiency inside the boiler; the device has a reasonable mechanical structure, is easy to operate, and has promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of a specific embodiment of the present invention; Figure 2 This is a schematic diagram of the support arm structure in a specific embodiment of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the ash storage bin according to a specific embodiment of the present invention; Figure 4 It is a structural schematic diagram of a three-dimensional cross-section of a filter screen in a specific embodiment of the present invention.

[0016] In the figure: 1. Bracket base; 2. Dust cleaning slot; 3. Positioning threaded hole; 4. Matching track; 5. Hydraulic lifting cylinder; 6. Protective cover; 7. Primary dust cleaning component; 8. Secondary dust cleaning component; 101. Fixed bracket; 102. Rotating head; 103. Support arm; 104. Cleaning nozzle; 201. Dust storage bin; 202. Matching connecting rod; 203. Microcontroller; 204. Independent cleaning unit; 301. High-speed motor; 302. Rotor; 303. Blade; 304. Inlet duct; 305. Support rod; 306. Air flow sensor; 307. Filter. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0019] Example 1: Reference Figure 1-4 , a steam sootblowing device for a boiler, comprising: The bracket base 1; the bracket base 1 is provided with a matching track 4 at the inner position above the bracket base 1, and the matching track 4 is vertically provided on the inner side of the bracket base 1; A dust cleaning trough 2 is provided inside the bracket base 1 and is used to store dust. A positioning threaded hole 3 is provided at the right end of the dust cleaning trough 2. The hydraulic lifting cylinder 5 is arranged on the inner side of the bracket base 1, and the hydraulic lifting cylinder 5 is connected to the matching rail 4; the hydraulic lifting cylinder 5 can adjust the working height of the cleaning component, so as to perform cleaning processing on positions at different heights inside the boiler.

[0020] The protective cover 6 is arranged at the outer side of the hydraulic lifting cylinder 5, and the protective cover 6 provides an anti-interference function for the inner components; the protective cover 6 can provide a protection function for the cleaning components to prevent the coal slag falling from the inside of the boiler from damaging the cleaning components, thereby affecting the normal working state of the device.

[0021] A primary cleaning component 7 is provided in cooperation with the internal position of the protective cover 6, and the primary cleaning component 7 performs a preliminary cleaning function on the interior of the boiler; The secondary cleaning component 8 is arranged in front of the primary cleaning component 6, and the secondary cleaning component 8 performs a secondary cleaning function on the inside of the boiler.

[0022] The primary cleaning component 7 includes a fixed bracket 101, a rotating head 102, a support arm 103, and a cleaning nozzle 104. The fixed bracket 101 is arranged in a position inside the protective cover 6. The front end of the fixed bracket 101 is provided with a rotating head 102. The outer wall of the rotating head 102 is provided with a support arm 103. The support arm 103 is provided with a cleaning nozzle 104. The cleaning nozzle 104 performs preliminary cleaning of the interior of the boiler. The primary cleaning component 7 can rotate the rotating head 102 according to different cleaning requirements. Then, the cleaning nozzle 104 blows away the dust fixed on the inner wall of the boiler, blowing off the dust, which lays the foundation for subsequent cleaning functions.

[0023] The secondary cleaning component 8 includes an ash storage bin 201, a connecting rod 202, a microcontroller 203, and independent cleaning units 204. The ash storage bin 201 is configured in conjunction with the rotating head 102, and connecting rods 202 are provided on both sides of the ash storage bin 201, extending outward. The microcontroller 203 is provided on the other side of the connecting rod 202. A plurality of evenly distributed independent cleaning units 204 are provided above the microcontroller 203. The secondary cleaning component 8 can absorb dust blown off from the boiler interior through each independent cleaning unit 204 provided above, and store it in the ash storage bin 201, thereby completing the boiler interior cleaning operation.

[0024] The matching connecting rod 202 is connected to the ash storage bin 201 via a fixed pin, and the maximum rotation angle of the matching connecting rod 202 is 45°.

[0025] The matching connecting rods 202 at adjacent positions rotate in opposite directions. The matching connecting rods 202 at different angles can cover the interior of the boiler at all angles, thereby processing the dead angles inside the boiler and further improving the overall cleaning efficiency inside the boiler.

[0026] A dust cleaning pipe is provided at the inner side of the mating connecting rod 202 , one end of the dust cleaning pipe is matingly connected to the dust storage bin 201 , and the other end is matingly connected to the inside of the microcontroller 203 .

[0027] Example 2: Reference Figure 1-4 , which is basically the same as Example 1. Furthermore, the independent cleaning unit 204 includes a high-speed motor 301, a rotor 302, blades 303, an air intake duct 304, a support rod 305, an air flow sensor 306, and a filter 307. The high-speed motor 301 is located at the innermost position of the independent cleaning unit 204. The rotor 302 and blades 303 are coaxially arranged with the rotor 302 at the outer output end of the high-speed motor 301. The blades 303 are coaxially arranged with the rotor 302. The air intake duct 304 is located outside the rotor 302, and the support rod 305 is also located outside the air intake duct 304. The air flow sensor 306 is located on the inner wall of the air intake duct 304, and the filter 307 is located outside the air flow sensor 306. While the independent cleaning unit 204 cleans dust inside the boiler, the air flow sensor 306 installed inside can monitor the flow rate during the cleaning process, thereby improving the operator's ability to control relevant parameters.

[0028] The filter 307 is internally provided with an activated carbon adsorption mesh and a nano-scale metal mesh, and the nano-scale metal mesh is arranged inwardly of the activated carbon adsorption mesh. The filter 307 can improve the overall filtration efficiency and filter out some large particles of impurities, thereby improving the overall sootblowing efficiency.

[0029] The filter screen 307 is parallel to the outermost height of the independent cleaning unit 204 .

[0030] Example 3: Reference Figure 1-4 , basically the same as Example 1, the bottom position of the bracket base 1 is equipped with a guide rail groove, which is engaged with the inner wall of the boiler. The device can be fixed to the inner wall of the boiler through the guide rail groove, improving the stability of the device during operation.

[0031] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A steam sootblowing device for a boiler, characterized in that: include: A bracket base (1); a matching track (4) is provided on the upper inner side of the bracket base (1); the matching track (4) is vertically provided on the inner side of the bracket base (1); A dust cleaning trough (2) is provided in cooperation with an inner position of the bracket base (1), the dust cleaning trough (2) is used to store dust, and a positioning threaded hole (3) is provided in cooperation with the right end of the dust cleaning trough (2); A hydraulic lifting cylinder (5) is cooperatively arranged at an inner side of the support base (1), and the hydraulic lifting cylinder (5) is cooperatively connected to the matching track (4); A protective cover (6) is cooperatively arranged at an outer position of the hydraulic lifting cylinder (5), and the protective cover (6) provides an anti-interference function for the inner components; A primary ash cleaning component (7) is arranged in cooperation with the internal position of the protective cover (6), and the primary ash cleaning component (7) realizes a preliminary ash cleaning function inside the boiler; The secondary ash cleaning component (8) is arranged in cooperation with the front side of the primary ash cleaning component (6), and the secondary ash cleaning component (8) realizes a secondary ash cleaning function inside the boiler.

2. A steam sootblowing device for a boiler according to claim 1, characterized in that: The primary cleaning component (7) comprises a fixed bracket (101), a rotating head (102), a support arm (103) and a cleaning nozzle (104); the fixed bracket (101) is arranged in a position inside the protective cover (6); the front end of the fixed bracket (101) is provided with a rotating head (102); the outer wall of the rotating head (102) is provided with a support arm (103); the support arm (103) is provided with a cleaning nozzle (104); and the cleaning nozzle (104) performs preliminary cleaning work on the interior of the boiler.

3. The steam sootblowing device for a boiler according to claim 1, characterized in that: The secondary dust cleaning component (8) comprises an ash storage bin (201), a matching connecting rod (202), a microcontroller (203) and an independent cleaning unit (204); the ash storage bin (201) is arranged in conjunction with the rotating head (102), and matching connecting rods (202) are provided on both sides of the ash storage bin (201) extending outwards; the microcontroller (203) is provided on the other side of the matching connecting rod (202); and a plurality of evenly distributed independent cleaning units (204) are provided on the upper end of the microcontroller (203).

4. A steam sootblowing device for a boiler according to claim 3, characterized in that: The matching connecting rod (202) is connected to the ash storage bin (201) via a fixed axis pin, and the maximum rotation angle of the matching connecting rod (202) is 45°.

5. The steam sootblowing device for a boiler according to claim 3, characterized in that: The matching connecting rods (202) at adjacent positions rotate in opposite directions.

6. The steam sootblowing device for a boiler according to claim 3, characterized in that: The independent cleaning unit (204) comprises a high-speed motor (301), a rotating wheel (302), blades (303), an air intake duct (304), a support rod (305), an air flow sensor (306) and a filter (307); the high-speed motor (301) is arranged at the innermost position of the independent cleaning unit (204); the rotating wheel (302) and the blades (303) are arranged coaxially with the rotating wheel (302); the air intake duct (304) is arranged at the outer position of the rotating wheel (302); the supporting rod (305) is arranged at the outer position of the air intake duct (304); the air flow sensor (306) is arranged at the inner wall position of the air intake duct (304); and the filter (307) is arranged at the outer position of the air flow sensor (306).

7. A steam sootblowing device for a boiler according to claim 6, characterized in that: An activated carbon adsorption net and a nano-scale metal net are arranged inside the filter net (307), and the nano-scale metal net is arranged in a coordinated manner at an inner position of the activated carbon adsorption net.

8. The steam sootblowing device for a boiler according to claim 7, characterized in that: The filter screen (307) is parallel to the outermost height of the independent cleaning unit (204).

9. The steam sootblowing device for a boiler according to claim 3, characterized in that: A dust cleaning pipe is provided inside the matching connecting rod (202), one end of the dust cleaning pipe is matched and connected to the dust storage bin (201), and the other end is matched and connected to the inside of the microcontroller (203).

10. The steam sootblowing device for a boiler according to claim 1, characterized in that: The bottom of the bracket base (1) is provided with a guide rail groove, which is engaged with the inner wall of the boiler.

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