Shock wave soot blower of boiler

Abstract

The utility model discloses a boiler shock wave soot blower, and relates to the technical field of soot blowers. The device comprises a pulse tank, a first pipe body, a second pipe body and a nozzle, the first pipe body and the second pipe body are connected with the pulse tank, the nozzle is fixedly connected with the bottom end of the pulse tank, the first pipe body is used for conveying combustible gas, the second pipe body is used for conveying air, and one end of the first pipe body and one end of the second pipe body are respectively provided with a group of adjusting valves and electromagnetic valves. According to the boiler shock wave soot blowing device, the expansion mechanism is arranged at one end of the nozzle, so that the impact range of shock waves is expanded, accumulated soot at different positions in a boiler can be subjected to the shock waves with the same impact force, the accumulated soot in the boiler is completely cleaned, and the expansion mechanism is combined with the rotating assembly, so that the rotating assembly is more stable. And on the basis of shock waves, accumulated dust in the boiler is scraped by external force, and effective cleaning of the accumulated dust in the boiler is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sootblowing devices, in particular to a boiler shock wave sootblowing device. Background Art

[0002] In the existing technology, a shock wave soot blower is used to clean the dust accumulated on the heating surface of the boiler. The combustible gas and air are evenly mixed in a certain proportion, and the mixed gas is transported to the ignition tank for combustion. During the combustion process, a compression wave is generated, and the compression wave generates a shock wave through the pulse tank. At this time, the dust accumulated on the heating surface is affected by the shock wave and falls off from the boiler.

[0003] At present, only one end of the nozzle is connected to the interior of the boiler, and the filtering internal space is large, so when the shock wave ejected by the nozzle enters the interior of the boiler, the shock wave will first contact the ash accumulation in one part of the boiler and clean the ash. In this process, the shock wave will have some energy loss, resulting in incomplete cleaning of the ash accumulation in other parts of the boiler when contacting the loss shock wave, affecting the overall cleaning effect. In view of the shortcomings of the existing technology, we propose a boiler shock wave soot blowing device to solve the above problems. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a boiler shock wave soot blowing device, which solves the problem of incomplete cleaning of soot accumulated at different positions in the boiler due to the impact of the shock wave.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a boiler shock wave sootblowing device, comprising a pulse tank, a first tube body and a second tube body connected to the pulse tank, and a nozzle fixedly connected to the bottom end of the pulse tank, wherein an expansion mechanism is provided at one end of the nozzle away from the pulse tank, and the expansion mechanism comprises:

[0006] a hollow cylinder fixedly connected to one end of the nozzle;

[0007] A guide tube connected to one end of the hollow cylinder, wherein the outer wall of the guide tube is provided with multiple groups of through holes;

[0008] The scraper is fixedly arranged on the outer wall of the guide tube and contacts the inner wall of the boiler.

[0009] Preferably, a rotating assembly is provided on the outer wall of one end of the guide tube extending into the interior of the hollow cylinder, and the linkage between the second tube body and the guide tube is achieved through the rotating assembly.

[0010] Preferably, the rotating assembly includes:

[0011] The fan blade is fixedly mounted on the outer wall of one end of the guide tube extending into the interior of the hollow cylinder;

[0012] a connecting pipe, one end of which is connected to the interior of the hollow cylinder, and the other end of which is connected to the interior of the second pipe body;

[0013] The control valve is arranged on the outer wall of the connecting pipe.

[0014] Preferably, a mesh cover is fixedly connected to the inner wall of one end of the hollow cylinder close to the fan blades, and the air blown toward the fan blades is filtered through the mesh cover.

[0015] Preferably, the first tube body is used for conveying combustible gas, and the second tube body is used for conveying air.

[0016] Preferably, a set of regulating valves and solenoid valves are provided at one end of each of the first tube body and the second tube body.

[0017] Preferably, one end of the first tube body and the second tube body is fixedly connected to a mixing tank, one side of the mixing tank is connected to an ignition tank, and the ignition tank is connected to the pulse tank.

[0018] The utility model discloses a boiler shock wave soot blowing device, which has the following beneficial effects: the boiler shock wave soot blowing device is provided with an expansion mechanism at one end of the nozzle, so that the impact range of the shock wave is expanded, so that the ash accumulated at different positions in the boiler can be subjected to shock waves with equal impact force, so that the ash accumulated in the boiler can be cleaned more completely, and the expansion mechanism is combined with a rotating component, so that the ash accumulated inside the boiler is scraped off by external force on the basis of the shock wave, thereby ensuring the effective cleaning of the ash accumulated in the boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a plan view of the pulse tank and nozzle structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the nozzle and expansion mechanism structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the guide tube and fan blade structure of the utility model;

[0024] Figure 5This is a schematic diagram of the hollow tube and mesh cover structure of the utility model.

[0025] In the picture:

[0026] 1. Pulse tank; 11. Ignition tank; 12. Mixing tank; 13. Nozzle;

[0027] 2. The first tube body; 21. The second tube body;

[0028] 3. Regulating valve;

[0029] 4. Solenoid valve;

[0030] 5. Expansion mechanism; 51. Hollow cylinder; 52. Guide tube; 53. Through hole; 54. Scraper; 55. Mesh cover;

[0031] 6. Rotating assembly; 61. Fan blades; 62. Connecting pipe; 63. Control valve. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0033] The embodiment of the present application provides a boiler shock wave sootblowing device, which solves the problem of incomplete cleaning of ash deposits at different locations in the boiler due to the impact of the shock wave, and realizes effective cleaning of ash deposits at various locations in the boiler.

[0034] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0035] The embodiment of the utility model discloses a boiler shock wave sootblowing device.

[0036] According to the attached Figure 1-5As shown, it includes a pulse tank 1, a first tube body 2 and a second tube body 21 connected to the pulse tank 1, and a nozzle 13 fixedly connected to the bottom end of the pulse tank 1. The first tube body 2 is used for conveying combustible gas, and the second tube body 21 is used for conveying air. One end of the first tube body 2 and the second tube body 21 is provided with a group of regulating valves 3 and solenoid valves 4. One end of the first tube body 2 and the second tube body 21 is fixedly connected to a mixing tank 12. One side of the mixing tank 12 is connected to an ignition tank 11. The ignition tank 11 is connected to the pulse tank 1. Through the control of a group of regulating valves 3 and solenoid valves 4, the combustible gas first enters the interior of the mixing tank 12 through the first tube body 2, and at the same time, through another group The control of the regulating valve 3 and the solenoid valve 4 allows the air to first enter the interior of the mixing tank 12 through the second pipe body 21, so that the combustible gas and air are evenly mixed in a certain proportion. The mixed gas is then transported to the ignition tank 11 for combustion. During the combustion process, a compression wave is generated, forming kinetic energy, sound energy, and thermal energy. This combustion speed is relatively fast, and the gas pressure generated by the combustion is limited to a certain range. Finally, it is sprayed into the interior of the boiler through the nozzle 13 of the pulse tank 1. The boiler is not specifically drawn in the accompanying drawings. The shock wave causes the dust accumulated on the heating surface of the boiler to fall off, and the dust particles, loose objects, adhesives and sediments on the contaminated heating surface are removed.

[0037] The nozzle 13 is provided with an expansion mechanism 5 at one end away from the pulse tank 1. The expansion mechanism 5 is provided to expand the impact range of the shock wave, thereby making the dust accumulation inside the boiler clean more completely. The expansion mechanism 5 includes a hollow cylinder 51, which is fixedly connected to one end of the nozzle 13, and a guide tube 52 is connected to one end of the hollow cylinder 51. Both ends of the guide tube 52 are hollowed out. The interiors of the nozzle 13, the hollow cylinder 51 and the guide tube 52 are all in a connected state, and the guide tube 52 can be placed inside the boiler. The outer wall of the guide tube 52 is provided with multiple groups of through holes 53, which can be used for scraping. The plate 54 is fixedly arranged on the outer wall of the guide tube 52, and the scraper 54 is in contact with the inner wall of the boiler. The scraper 54 can be used to further scrape and clean the accumulated dust on the heating surface of the boiler. The guide tube 52 and the scraper 54 on its outer wall are moved to the interior of the boiler. At this time, under the action of the multiple groups of through holes 53 distributed on the outer wall of the guide tube 52, when the shock wave enters the guide tube 52 through the nozzle 13, the shock wave can move to the interior of the boiler through the through holes 53 at different positions, so that the shock waves moved from different positions can clean the accumulated dust at different positions in the boiler.

[0038] The outer wall of one end of the guide tube 52 extending to the inside of the hollow cylinder 51 is provided with a rotating assembly 6, and the second tube body 21 and the guide tube 52 are linked by the rotating assembly 6, that is, when the second tube body 21 is conveying air, part of the air can be directly conveyed to the inside of the hollow cylinder 51, and then the guide tube 52 and the outer wall scraper 54 of the guide tube 52 are rotated under the drive of wind, so that the scraper 54 performs an external force scraping operation on the ash adhered to the boiler, so that the ash in the boiler is further cleaned on the basis of the shock wave. In principle, the rotating assembly 6 includes a fan blade 61, which is fixedly arranged on the outer wall of one end of the guide tube 52 extending to the interior of the hollow cylinder 51, one end of the connecting tube 62 is connected to the interior of the hollow cylinder 51, and the other end of the connecting tube 62 is connected to the interior of the second tube body 21, and the control valve 63 is arranged on the outer wall of the connecting tube 62. The inner wall of one end of the hollow cylinder 51 close to the fan blade 61 is fixedly connected with a mesh cover 55, and the air blown to the fan blade 61 is filtered by the mesh cover 55, and the dust in the boiler is prevented from directly entering the nozzle 13.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A boiler shock wave sootblowing device, comprising a pulse tank (1), a first tube body (2) and a second tube body (21) connected to the pulse tank (1), and a nozzle (13) fixedly connected to the bottom end of the pulse tank (1), characterized in that: An expansion mechanism (5) is provided at one end of the nozzle (13) away from the pulse tank (1), and the expansion mechanism (5) comprises: A hollow cylinder (51) fixedly connected to one end of the nozzle (13); A guide tube (52) is connected to one end of the hollow cylinder (51), and a plurality of through holes (53) are formed on the outer wall of the guide tube (52); The scraper (54) is fixedly arranged on the outer wall of the guide tube (52), and the scraper (54) contacts the inner wall of the boiler.

2. A boiler shock wave sootblowing device according to claim 1, characterized in that: The outer wall of one end of the guide tube (52) extending to the interior of the hollow cylinder (51) is provided with a rotating assembly (6), and the linkage between the second tube body (21) and the guide tube (52) is achieved through the rotating assembly (6).

3. A boiler shock wave sootblowing device according to claim 2, characterized in that: The rotating assembly (6) comprises: a fan blade (61) fixedly arranged on the outer wall of one end of the guide tube (52) extending to the interior of the hollow cylinder (51); A connecting pipe (62), one end of which is connected to the interior of the hollow cylinder (51), and the other end of the connecting pipe (62) is connected to the interior of the second tube body (21); The control valve (63) is arranged on the outer wall of the connecting pipe (62).

4. A boiler shock wave sootblowing device according to claim 3, characterized in that: A mesh cover (55) is fixedly connected to the inner wall of one end of the hollow cylinder (51) close to the fan blade (61), and the air blown toward the fan blade (61) is filtered through the mesh cover (55).

5. The boiler shock wave sootblowing device according to claim 1, characterized in that: The first tube body (2) is used for conveying combustible gas, and the second tube body (21) is used for conveying air.

6. The boiler shock wave sootblowing device according to claim 5, characterized in that: One end of each of the first tube body (2) and the second tube body (21) is provided with a set of regulating valves (3) and electromagnetic valves (4).

7. The boiler shock wave sootblowing device according to claim 6, characterized in that: One end of each of the first tube body (2) and the second tube body (21) is fixedly connected to a mixing tank (12), one side of the mixing tank (12) is connected to an ignition tank (11), and the ignition tank (11) is connected to the pulse tank (1).

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