Soot blower for thermoelectric boiler flue

Abstract

The soot blower comprises a flue body, a mounting seat and a rotating shaft, the mounting seat is fixedly arranged on the outer wall of the flue body, a fan is fixedly arranged on the outer wall of one side of the mounting seat, a through groove is formed in the outer wall of the flue body, a second supporting frame is fixedly arranged on the inner wall of the flue body, and the rotating shaft is fixedly arranged on the second supporting frame. A rotating rod is rotationally connected into the second supporting frame through a bearing, and a plurality of fan blades are arranged on the outer wall of the rotating rod. The fan blows air into the flue body, dust attached to the inner wall of the flue body can be blown off by the air, the fan blades can drive the rotating rod to rotate when blown by the fan, the rotating rod can drive the driving bevel gear to rotate to be meshed with the driven bevel gear, the driven bevel gear can drive the rotating shaft and the scraping plate to rotate, and dust on the inner wall of the flue body can be removed. And dust adhering to the inner wall of the flue body can be scraped off, dust can be cleaned more thoroughly, and the dust screen can play a role in blocking the blown-off and scraped-off dust.

Description

Technical Field

[0001] The utility model relates to the technical field of thermoelectricity, in particular to a soot blowing device for a flue of a thermoelectric boiler. Background Art

[0002] A thermal power plant refers to a thermal power plant that uses extraction or exhaust steam from the steam turbine to provide heat to users while generating electricity. It mainly uses the hot water generated by the thermal power plant and reheats it for heating. The boiler is an important thermal energy conversion equipment in the thermal power plant. When the fuel is burned in the boiler, soot will adhere to the boiler flue. The accumulation of soot on the heating surface and flue of the boiler will cause uneven heating of the heating surface, resulting in overheating of the local flue on the heating surface, which may cause the wall temperature of the local flue on the heating surface to exceed the limit. When the soot accumulation is serious, not only will the heat exchange deteriorate, but the flue resistance will also increase, which will affect the normal operation of the boiler.

[0003] The soot blowing device in the prior art can usually only blow away the dust attached to the flue, while the dust adhering to the flue is not easy to blow away and will still stick to the flue. The dust treatment is not thorough enough, which will still affect the normal use of the boiler in the long run. Therefore, it is urgent to design a soot blowing device for the flue of a thermal power boiler to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a soot blowing device for a flue of a thermal power boiler to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] The yoke is provided with a plurality of support brackets, the support brackets being arranged on the outer wall of the yoke and the support brackets being arranged on the outer wall of the yoke, and the support brackets being arranged on the inner wall of the yoke and the support brackets being arranged on the inner wall of the yoke.

[0007] Furthermore, a retaining ring is rotatably connected to the interior of the flue body, and a guide block is provided on the outer wall of the retaining ring.

[0008] Furthermore, a guide groove is provided on the inner wall of the flue body, and the guide block is slidably connected inside the guide groove.

[0009] Furthermore, an air groove is provided on the outer wall of one side of the flue body, and the air groove is communicated with the through groove.

[0010] Furthermore, a tooth block is fixedly provided on the outer wall of one side of the retaining ring, a sliding groove is fixedly provided on the outer wall of one side of the flue body, and the tooth block is slidably connected to the inside of the sliding groove.

[0011] Furthermore, a protection box is fixedly provided on the outer wall of one side of the flue body, and a motor is fixedly provided on the outer wall of the bottom of the protection box.

[0012] Furthermore, an adjusting gear is provided on the output shaft of the motor, and the adjusting gear and the gear block are meshed with each other.

[0013] In the above technical solution, the utility model provides a soot blowing device for a thermal power boiler flue,

[0014] (1) Through the fan, through slot, rotating rod, fan blade, active bevel gear, support frame, rotating shaft, driven bevel gear and scraper, the fan blows air into the flue body, and the wind can blow away the dust attached to the inner wall of the flue body, and the fan blade drives the rotating rod to rotate when the fan blows air, and the rotating rod drives the active bevel gear to rotate and engage with the driven bevel gear, so that the driven bevel gear can drive the rotating shaft and the scraper to rotate, and the dust adhering to the inner wall of the flue body can be scraped off, and the dust can be cleaned more thoroughly. The dustproof net can block the blown and scraped dust, and can make the dust fall, so as to realize the environmental protection dust blowing function;

[0015] (2) By means of the provided baffle ring, air trough, tooth block, slide groove, protective box, motor and adjustment gear, the motor can drive the adjustment gear to rotate and engage with the tooth block, and the tooth block can drive the baffle ring to rotate, so as to adjust the air trough to be disconnected from the through groove, thereby preventing the smoke and dust inside the flue body from passing through the air trough and the through groove when the soot blowing operation is not in progress;

[0016] (3) By providing the guide groove and the guide block, when the retaining ring rotates, the guide block will slide inside the guide block, which can provide auxiliary support and guidance for the retaining ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 The present invention provides a three-dimensional structural schematic diagram of a soot blowing device for a thermal power boiler flue according to an embodiment of the present invention.

[0019] Figure 2 The present invention provides a schematic diagram of the internal structure of a soot blowing device for a thermal power boiler flue.

[0020] Figure 3 The utility model provides a schematic top view of the structure of a soot blowing device for a flue of a thermal power boiler according to an embodiment of the present invention.

[0021] Figure 4 The present invention is a schematic diagram of a guide groove structure provided in an embodiment of a soot blowing device for a thermal power boiler flue.

[0022] Description of reference numerals:

[0023] 1. Flue body; 2. Mounting base; 3. Fan; 4. Through slot; 5. Rotating rod; 6. Fan blade; 7. Driving bevel gear; 8. Support frame 1; 9. Rotating shaft; 10. Driven bevel gear; 11. Scraper; 12. Retaining ring; 13. Guide groove; 14. Guide block; 15. Air trough; 16. Gear block; 17. Slide; 18. Protective box; 19. Motor; 20. Adjusting gear; 21. Dust screen; 22. Support frame 2. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-4 As shown, a soot blowing device for a thermal power boiler flue is provided in an embodiment of the present invention, comprising a flue body 1, a mounting seat 2 and a rotating shaft 9. The mounting seat 2 is fixedly arranged on the outer wall of the flue body 1, and a fan 3 is fixedly arranged on the outer wall of one side of the mounting seat 2. A through slot 4 is opened on the outer wall of the flue body 1, a support frame 2 22 is fixedly arranged on the inner wall of the flue body 1, and the interior of the support frame 22 is rotatably connected to a rotating rod 5 through a bearing, a plurality of fan blades 6 are provided on the outer wall of the rotating rod 5, and a driving bevel gear 7 is fixedly provided on one end of the rotating rod 5, a support frame 1 8 is fixedly provided on the inner wall of the flue body 1, a rotating shaft 9 is rotatably connected to the inner wall of the support frame 1 8 through a bearing, and a driven bevel gear 10 is provided at one end of the rotating shaft 9, and the driven bevel gear 10 and the driving bevel gear 7 are meshed with each other, and scrapers 11 that fit the inner wall of the flue body 1 are fixedly provided on the outer walls on both sides of the rotating shaft 9, and a dustproof net 21 is provided on the top of the flue body 1.

[0026] The utility model provides a soot blowing device for a thermal power boiler flue, comprising a flue body 1, a mounting seat 2 and a rotating shaft 9, wherein the mounting seat 2 is fixedly arranged on the outer wall of the flue body 1, and a fan 3 is fixedly arranged on the outer wall of one side of the mounting seat 2, a through slot 4 is opened on the outer wall of the flue body 1, a support frame 2 22 is fixedly arranged on the inner wall of the flue body 1, and the interior of the support frame 2 22 is rotatably connected to a rotating rod 5 through a bearing, a plurality of fan blades 6 are arranged on the outer wall of the rotating rod 5, and an active bevel gear 7 is fixedly arranged on one end of the rotating rod 5, and a through slot 4 is opened on the outer wall of the flue body 1, and a through slot 4 is opened on the outer wall of the flue body 1, and a through slot 4 is opened on the outer wall of the flue body 1, and a through slot 4 is opened on the inner ... A support frame 8 is fixedly provided, and a rotating shaft 9 is rotatably connected to the inner wall of the support frame 8 through a bearing, and a driven bevel gear 10 is provided at one end of the rotating shaft 9, and the driven bevel gear 10 is meshed with the driving bevel gear 7. Scrapers 11 that fit the inner wall of the flue body 1 are fixedly provided on the outer walls on both sides of the rotating shaft 9, and a dustproof net 21 is provided on the top of the flue body 1. The fan 3 can blow off the dust attached to the inner wall of the flue body 1, and the scraper 11 can scrape off the dust adhered to the inner wall of the flue body 1, which can clean the dust more thoroughly and with better effect.

[0027] By setting: the fan 3 blows air into the inside of the flue body 1, the wind can blow away the dust attached to the flue body 1, and the fan blades 6 will drive the rotating rod 5 to rotate when the fan 3 blows air, and the rotating rod 5 will drive the active bevel gear 7 to rotate and engage with the driven bevel gear 10, so that the driven bevel gear 10 can drive the rotating shaft 9 and the scraper 11 to rotate, and can scrape off the dust adhering to the inner wall of the flue body 1, and can clean the dust more thoroughly. The dustproof net 21 can block the blown and scraped dust, and can make the dust fall, thereby realizing the environmentally friendly dust blowing function.

[0028] In one embodiment provided by the present invention, Figure 3 and Figure 4 As shown, a baffle ring 12 is rotatably connected to the interior of the flue body 1 , and a guide block 14 is provided on the outer wall of the baffle ring 12 . The baffle ring 12 is used to shield the through groove 4 .

[0029] In another embodiment provided by the present invention, Figure 2 and Figure 4 As shown, a guide groove 13 is provided on the inner wall of the flue body 1 , and a guide block 14 is slidably connected to the inside of the guide groove 13 to guide the baffle ring 12 .

[0030] In another embodiment provided by the present invention, Figure 2 and Figure 3 As shown, an air slot 15 is opened on the outer wall of one side of the flue body 1 , and the air slot 15 is connected with the through slot 4 , so that the air blown out by the fan 3 can enter the interior of the flue body 1 .

[0031] In one embodiment provided by the present invention, Figure 2and Figure 3 As shown, a tooth block 16 is fixedly provided on the outer wall of one side of the retaining ring 12 , a slide groove 17 is fixedly provided on the outer wall of one side of the flue body 1 , and the tooth block 16 is slidably connected inside the slide groove 17 , which can guide the tooth block 16 .

[0032] In another embodiment provided by the present invention, Figure 2 and Figure 3 As shown, a protection box 18 is fixedly provided on the outer wall of one side of the flue body 1 , and a motor 19 is fixedly provided on the outer wall at the bottom of the protection box 18 . The protection box 18 is used to protect the gear block 16 and the adjustment gear 20 .

[0033] In another embodiment provided by the present invention, Figure 2 and Figure 3 As shown, an adjusting gear 20 is provided on the output shaft of the motor 19 , and the adjusting gear 20 is meshed with the gear block 16 . The motor 19 can drive the adjusting gear 20 to rotate and mesh with the gear block 16 .

[0034] Working principle: The fan 3 blows air into the flue body 1 through the through slot 4 and the wind slot 15, which can blow away the dust attached to the inner wall 1 of the flue body. When the fan 3 blows air, it will blow the fan blades 6 to rotate, and the fan blades 6 will drive the rotating rod 5 and the active bevel gear 7 to rotate. The active bevel gear 7 is engaged with the driven bevel gear 10 to drive the rotating shaft 9 to rotate, and the rotating shaft 9 drives the scraper 11 to rotate. The scraper 11 can scrape off the dust adhering to the inner wall of the flue body 1. This method can handle the dust more thoroughly. The dustproof net 21 can block the dust, and the dust will fall and will not be blown into the air, which is more environmentally friendly. When soot blowing is not needed, turn on the motor 19 to drive the adjusting gear 20 to rotate and engage with the tooth block 16, so that the tooth block 16 drives the baffle ring 12 to rotate, staggering the wind slot 15 and the through slot 4 to prevent smoke and dust from passing through the wind slot 15 and the through slot 4, which is more environmentally friendly.

[0035] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A sootblowing device for a thermal power boiler flue, comprising a flue body (1), a mounting seat (2) and a rotating shaft (9), characterized in that: The mounting seat (2) is fixedly arranged on the outer wall of the flue body (1), and a fan (3) is fixedly arranged on the outer wall of one side of the mounting seat (2). A through slot (4) is provided on the outer wall of the flue body (1). A second support frame (22) is fixedly arranged on the inner wall of the flue body (1), and a rotating rod (5) is rotatably connected to the interior of the second support frame (22) through a bearing. A plurality of fan blades (6) are provided on the outer wall of the rotating rod (5), and a driving bevel gear is fixedly arranged on one end of the rotating rod (5). (7), a support frame (8) is fixedly provided on the inner wall of the flue body (1), the rotating shaft (9) is rotatably connected to the inner wall of the support frame (8) through a bearing, and a driven bevel gear (10) is provided at one end of the rotating shaft (9), the driven bevel gear (10) and the driving bevel gear (7) are meshed with each other, scrapers (11) are fixedly provided on the outer walls of both sides of the rotating shaft (9) and are in contact with the inner wall of the flue body (1), and a dustproof net (21) is provided on the top of the flue body (1).

2. A sootblowing device for a thermal power boiler flue according to claim 1, characterized in that: A baffle ring (12) is rotatably connected to the interior of the flue body (1), and a guide block (14) is provided on the outer wall of the baffle ring (12).

3. A sootblowing device for a thermal power boiler flue according to claim 2, characterized in that: A guide groove (13) is provided on the inner wall of the flue body (1), and a guide block (14) is slidably connected inside the guide groove (13).

4. A sootblowing device for a thermal power boiler flue according to claim 3, characterized in that: An air groove (15) is provided on the outer wall of one side of the flue body (1), and the air groove (15) is connected to the through groove (4).

5. The sootblowing device for a thermal power boiler flue according to claim 4, characterized in that: A tooth block (16) is fixedly provided on the outer wall of one side of the retaining ring (12), a slide groove (17) is fixedly provided on the outer wall of one side of the flue body (1), and the tooth block (16) is slidably connected inside the slide groove (17).

6. A sootblowing device for a thermal power boiler flue according to claim 5, characterized in that: A protection box (18) is fixedly provided on the outer wall of one side of the flue body (1), and a motor (19) is fixedly provided on the outer wall of the bottom of the protection box (18).

7. The sootblowing device for a thermal power boiler flue according to claim 6, characterized in that: An adjusting gear (20) is provided on the output shaft of the motor (19), and the adjusting gear (20) and the gear block (16) are meshed with each other.

Images