Automatic blowing equipment for accumulated ash of boiler

Abstract

The utility model discloses an automatic blowing device for boiler dust deposition, which comprises an outer sleeve, an inner gas delivery pipe and a jet head, the inner gas delivery pipe is mounted in the outer sleeve and extends out of the outer sleeve, a gas inlet pipe is fixedly mounted on the outer sleeve, two ends of the inner gas delivery pipe are respectively communicated with the gas inlet pipe and the jet head, and the jet head is communicated with the inner gas delivery pipe. The air spraying head is fixedly connected with the end, extending out of the outer sleeve, of the inner air conveying pipe, the air spraying head is provided with an air spraying hole communicated with the inner air conveying pipe, the end, close to the air spraying head, of the outer sleeve is fixedly connected with a first heat insulation plate, the first heat insulation plate is fixedly connected with a connecting block, and the connecting block is fixedly connected with a second heat insulation plate. The boiler has the advantages that steam does not make contact with the outer sleeve, the heat insulation effect is achieved, the boiler and the outer sleeve are separated through the first heat insulation plate and the second heat insulation plate, heat on the boiler can be prevented from being transmitted to the outer sleeve, operators are prevented from being scalded by the outer sleeve, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying equipment, in particular to automatic spraying equipment for boiler ash accumulation. Background Art

[0002] Boilers are important energy conversion equipment and the heart of process equipment operation. They are also high-energy-consuming equipment with the largest energy consumption and carbon emissions. During long-term operation of the boiler, ash accumulation will occur, which will have a negative impact on the thermal efficiency of the boiler.

[0003] The Chinese invention patent application document with publication number CN117366599A discloses a boiler soot blower, comprising: an air pipe, the air pipe is used to connect a compressed gas source; an outer sleeve, the outer sleeve is sealed and sleeved on the air pipe, and the outer sleeve can move along the axial direction of the air pipe, and the outer sleeve is provided with a first air channel to communicate with the air pipe; a soot blowing nozzle, the soot blowing nozzle is rotatably installed on the outer sleeve through a mounting shaft, and the soot blowing nozzle is provided with a second air channel to communicate with the first air channel, and the axis of the mounting shaft is perpendicular to the axis of the outer sleeve; and a driving device, the driving device is transmission-connected with the soot blowing nozzle to drive the soot blowing nozzle to rotate around a rotation axis, and the rotation axis is parallel to the axis of the mounting shaft. Through the above technical solution, the efficiency of cleaning boiler ash can be improved.

[0004] Due to the high temperature inside the boiler, the boiler sootblower is prone to overheating after the gas pipe absorbs heat during long-term use, which is inconvenient when moving the casing and easily burns the operator's hands. Therefore, the boiler sootblower in the prior art has the problem of inconvenient operation. Utility Model Content

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a boiler ash automatic blowing device, which includes an outer sleeve, an inner gas pipe, and an injection head. The boiler ash automatic blowing device has the advantage of convenient operation.

[0006] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0007] A boiler ash automatic blowing device comprises an outer sleeve, an inner gas pipe and an injection nozzle, wherein the inner gas pipe is installed in the outer sleeve and extends out of the outer sleeve, an air inlet pipe is fixedly installed on the outer sleeve, two ends of the inner gas pipe are respectively connected with the air inlet pipe and the injection nozzle, the injection nozzle is fixedly connected with one end of the inner gas pipe extending out of the outer sleeve, the injection nozzle is provided with an injection hole connected with the inner gas pipe, one end of the outer sleeve close to the injection nozzle is fixedly connected with a first heat insulation board, the first heat insulation board is fixedly connected with a connecting block, and the connecting block is fixedly connected with a second heat insulation board.

[0008] Through such an arrangement: the steam does not contact the outer casing, which plays a role of heat insulation, and the boiler and the outer casing are separated by the first insulation board and the second insulation board, which can prevent the heat from the boiler from being transferred to the outer casing, prevent the operator from being scalded by the outer casing, and achieve the advantage of convenient operation.

[0009] Preferably, the inner gas transmission pipe is fixedly connected to a connecting plate located inside the outer sleeve, the connecting plate is fixedly connected to a supporting sleeve, and the supporting sleeve is in contact with the inner wall of the outer sleeve.

[0010] Such an arrangement can improve the structural stability of the inner gas pipe.

[0011] Preferably, the connecting plate is provided with a first air vent, the end of the outer sleeve away from the nozzle is provided with a cooling air interface, a first insulation cavity is provided between the air inlet pipe and the support sleeve, and the first insulation cavity is respectively connected to the cooling air interface and the first air vent.

[0012] Such an arrangement can prevent operators from being scalded by the outer sleeve, thereby achieving the advantage of convenient operation.

[0013] Preferably, the first insulation board is provided with a second vent hole, a second insulation cavity is provided between the outer sleeve and the inner gas pipe, and two ends of the second insulation cavity are respectively connected to the first vent hole and the second vent hole.

[0014] Such an arrangement can prevent operators from being scalded by the outer sleeve, thereby achieving the advantage of convenient operation.

[0015] Preferably, the inner air pipe is passed through the first insulation board and the second insulation board, the inner air pipe is rotatably connected to the first insulation board and the second insulation board respectively and slides axially, and the support sleeve is rotatably connected to the outer sleeve and slides axially.

[0016] Through such an arrangement, the ash accumulation at different positions in the furnace body can be cleaned, which facilitates the blowing away of the ash accumulation.

[0017] Preferably, the connecting plate is rotatably connected to a backing plate, the backing plate is axially slidably connected to the outer sleeve and circumferentially clamped, and an elastic member is provided between the backing plate and the first heat insulation plate.

[0018] Through such an arrangement, the position of the jet head in the boiler can be automatically adjusted by controlling the steam pressure, thereby facilitating the cleaning of ash accumulation at different positions in the furnace body.

[0019] Preferably, the elastic member is a spring whose two ends are respectively in contact with the backing plate and the first heat insulation plate.

[0020] Through such an arrangement, the function of pushing the inner air delivery pipe and the air jet head toward the inside of the outer sleeve is achieved through the elastic member.

[0021] Preferably, the inner air pipe is fixedly connected to an impeller.

[0022] Through such an arrangement, the function of driving the inner air pipe and the jet head to rotate is achieved.

[0023] Preferably, the inner air delivery pipe is fixedly connected with a clamping ring, the air intake pipe is fixedly connected with a sealing clamping plate clamped with the clamping ring, and the sealing clamping plate is perpendicular to the air intake pipe.

[0024] Through such an arrangement, the sealing performance can be improved.

[0025] Preferably, the clamping ring is provided with a flexible sealing ring abutting against the air intake pipe.

[0026] Through such an arrangement, the sealing performance can be improved.

[0027] Compared with the prior art, the utility model has achieved beneficial technical effects:

[0028] 1. The steam with higher temperature is transmitted in the inner gas pipe, so that the steam can be blocked by the inner gas pipe, so that the steam does not contact with the outer casing, thereby playing a role of heat insulation, preventing the operator from being scalded by the outer casing, and achieving the advantage of convenient operation.

[0029] 2. When the jet head is located in the boiler, the second heat insulation board abuts against the outer wall of the boiler, and the boiler and the outer casing are separated by the first heat insulation board and the second heat insulation board, which can prevent the heat on the boiler from being transferred to the outer casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of an automatic boiler ash blowing device in an embodiment of the utility model;

[0031] Figure 2 It is a cross-sectional view of an automatic boiler ash blowing device in an embodiment of the utility model.

[0032] The technical features indicated by the reference numerals are as follows:

[0033] 11. Outer sleeve; 12. Air inlet pipe; 13. First heat insulation board; 14. Connecting block; 15. Second heat insulation board; 16. Sealing card plate; 21. Inner air pipe; 22. Connecting plate; 23. Support sleeve; 24. Pad; 25. Elastic member; 26. Impeller; 27. Snap ring; 28. Flexible sealing ring; 31. Injection head; 32. Injection hole; 41. Cooling air interface; 42. First heat insulation chamber; 43. First ventilation hole; 44. Second heat insulation chamber; 45. Second ventilation hole. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments, but the scope of protection claimed in the utility model is not limited to the following specific embodiments.

[0035] refer to Figure 1 and Figure 2 A boiler ash accumulation automatic blowing device includes an outer sleeve 11, an inner gas pipe 21, and an air jet head 31. The inner gas pipe 21 is installed in the outer sleeve 11, and the inner gas pipe 21 extends out of the outer sleeve 11. The outer sleeve 11 is fixedly installed with an air inlet pipe 12. The two ends of the inner gas pipe 21 are respectively connected with the air inlet pipe 12 and the air jet head 31. The air jet head 31 is fixedly connected with one end of the inner gas pipe 21 extending out of the outer sleeve 11. The air jet head 31 is provided with an air jet hole 32 connected with the inner gas pipe 21. The inner gas pipe 21 is fixedly connected with a clamping ring 27. The air inlet pipe 12 is fixedly connected with a sealing clamping plate 16 clamped with the clamping ring 27. The sealing clamping plate 16 is perpendicular to the air inlet pipe 12. The clamping ring 27 is installed with a flexible sealing ring 28 abutting against the air inlet pipe 12.

[0036] The end of the outer sleeve 11 close to the nozzle 31 is fixedly connected to the first heat insulation board 13, the first heat insulation board 13 is fixedly connected to the connection block 14, and the connection block 14 is fixedly connected to the second heat insulation board 15. The inner gas pipe 21 is fixedly connected to the connection plate 22 located in the outer sleeve 11, and the connection plate 22 is fixedly connected to the support sleeve 23, and the support sleeve 23 is in contact with the inner wall of the outer sleeve 11. The connection plate 22 is provided with a first vent 43, and the end of the outer sleeve 11 away from the nozzle 31 is provided with a cooling air interface 41, and a first heat insulation cavity 42 is provided between the air inlet pipe 12 and the support sleeve 23, and the first heat insulation cavity 42 is respectively connected to the cooling air interface 41 and the first vent 43. The first heat insulation board 13 is provided with a second vent 45, and a second heat insulation cavity 44 is provided between the outer sleeve 11 and the inner gas pipe 21, and the two ends of the second heat insulation cavity 44 are respectively connected to the first vent 43 and the second vent 45. The inner air pipe 21 is provided through the first insulation board 13 and the second insulation board 15, and is rotatably connected to the first insulation board 13 and the second insulation board 15 and axially slides, respectively, and the support sleeve 23 is rotatably connected to the outer sleeve 11 and axially slides. The inner air pipe 21 is fixedly connected to an impeller 26.

[0037] The connecting plate 22 is rotatably connected to a backing plate 24, which is axially slidably connected to the outer sleeve 11 and circumferentially clamped. An elastic member 25 is provided between the backing plate 24 and the first heat insulation plate 13. The elastic member 25 is a spring whose two ends are respectively in contact with the backing plate 24 and the first heat insulation plate 13, so as to realize the function of pushing the inner air pipe 21 and the nozzle 31 to move into the inner part of the outer sleeve 11 through the elastic member 25.

[0038] This embodiment has the following advantages:

[0039] Move the outer sleeve 11, place the nozzle 31 into the boiler, and then send steam into the inner gas pipe 21 and the nozzle 31 through the air inlet pipe 12, and the high-temperature steam is then sprayed into the boiler through the jet hole 32, thereby realizing the function of cleaning the ash accumulated in the boiler.

[0040] The steam with a higher temperature is transmitted in the inner gas pipe 21, so that the steam can be blocked by the inner gas pipe 21, so that the steam does not contact the outer sleeve 11, thereby playing a role of heat insulation, preventing the operator from being scalded by the outer sleeve 11, and achieving the advantage of convenient operation.

[0041] When the nozzle 31 is located in the boiler, the second insulation board 15 abuts against the outer wall of the boiler. The first insulation board 13 and the second insulation board 15 separate the boiler and the outer casing 11 , thereby preventing the heat on the boiler from being transferred to the outer casing 11 .

[0042] The support sleeve 23 is in contact with the outer sleeve 11 , so that the outer sleeve 11 can provide support force to the inner gas pipe 21 through the support sleeve 23 and the connecting plate 22 , thereby improving the structural stability of the inner gas pipe 21 .

[0043] Air with a lower temperature is injected into the first insulation cavity 42 from the cooling air interface 41, and then the air is discharged to the outside of the first insulation cavity 42 through the first vent hole 43, so that the heat of the air intake pipe 12 can be blocked by the flowing air, and the heat is prevented from being transferred to the outer sleeve 11, thereby preventing the operator from being scalded by the outer sleeve 11, thereby achieving the advantage of convenient operation.

[0044] The air in the first insulation cavity 42 enters the second insulation cavity 44 through the first vent hole 43, and then is discharged from the outside of the second insulation cavity 44 through the second vent hole 45, so that the heat of the inner air pipe 21 can be blocked by the flowing air, and the heat is prevented from being transferred to the outer sleeve 11, thereby preventing the operator from being scalded by the outer sleeve 11, thereby achieving the advantage of convenient operation.

[0045] The inner gas pipe 21 is rotated and axially slid on the first insulation board 13 and the second insulation board 15, so that the gas injection hole 32 can be adjusted to different positions and different angles, so that the dust accumulation at different positions in the furnace body can be cleaned, which plays a role in facilitating the blowing away of the dust accumulation.

[0046] The pressure of the steam input to the inner gas pipe 21 is increased, and the inner gas pipe 21 and the nozzle 31 are pushed to move outside the outer casing 11 by the pressure of the steam. The pressure of the steam input to the inner gas pipe 21 is reduced, and the inner gas pipe 21 moves to the inside of the outer casing 11 under the elastic force of the elastic member 25. The position of the nozzle 31 in the boiler is automatically adjusted by controlling the steam pressure, which facilitates the cleaning of dust accumulation at different positions in the furnace body.

[0047] When the steam flows in the inner gas pipe 21, the steam contacts the impeller 26 and drives the impeller 26 to rotate, and the inner gas pipe 21 and the nozzle 31 are driven to rotate by the impeller 26, thereby realizing the function of driving the inner gas pipe 21 and the nozzle 31 to rotate.

[0048] By providing the clamping ring 27 and the sealing clamping plate 16, the steam in the inner gas pipe 21 is prevented from leaking through the gap between the inner gas pipe 21 and the air inlet pipe 12, thereby improving the sealing performance.

[0049] The flexible sealing ring 28 blocks the gap between the clamp ring 27 and the intake pipe 12 to prevent steam from leaking through the gap between the clamp ring 27 and the intake pipe 12, thereby improving the sealing performance.

[0050] According to the disclosure and teaching of the above specification, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A boiler ash automatic blowing device, characterized in that: The invention comprises an outer sleeve (11), an inner air pipe (21), and an air jet head (31). The inner air pipe (21) is installed in the outer sleeve (11), the inner air pipe (21) extends out of the outer sleeve (11), an air inlet pipe (12) is fixedly installed on the outer sleeve (11), two ends of the inner air pipe (21) are respectively connected with the air inlet pipe (12) and the air jet head (31), the air jet head (31) is fixedly connected with one end of the inner air pipe (21) extending out of the outer sleeve (11), the air jet head (31) is provided with an air jet hole (32) connected with the inner air pipe (21), one end of the outer sleeve (11) close to the air jet head (31) is fixedly connected with a first heat insulation board (13), the first heat insulation board (13) is fixedly connected with a connecting block (14), and the connecting block (14) is fixedly connected with a second heat insulation board (15).

2. The boiler ash automatic blowing equipment according to claim 1 is characterized by: The inner gas delivery pipe (21) is fixedly connected to a connecting plate (22) located inside the outer sleeve (11), and the connecting plate (22) is fixedly connected to a supporting sleeve (23), and the supporting sleeve (23) is in contact with the inner wall of the outer sleeve (11).

3. The automatic boiler ash blowing equipment according to claim 2 is characterized in that: The connecting plate (22) is provided with a first vent hole (43), an end of the outer sleeve (11) away from the nozzle (31) is provided with a cooling air interface (41), a first heat insulating cavity (42) is provided between the air inlet pipe (12) and the support sleeve (23), and the first heat insulating cavity (42) is respectively connected to the cooling air interface (41) and the first vent hole (43).

4. The automatic boiler ash blowing equipment according to claim 3 is characterized in that: The first heat insulation board (13) is provided with a second vent hole (45), a second heat insulation cavity (44) is provided between the outer sleeve (11) and the inner air pipe (21), and two ends of the second heat insulation cavity (44) are respectively connected to the first vent hole (43) and the second vent hole (45).

5. The automatic boiler ash blowing equipment according to claim 2 is characterized in that: The inner air delivery pipe (21) is inserted through the first heat insulation board (13) and the second heat insulation board (15), and the inner air delivery pipe (21) is rotatably connected to the first heat insulation board (13) and the second heat insulation board (15) respectively and slides axially, and the support sleeve (23) is rotatably connected to the outer sleeve (11) and slides axially.

6. The automatic boiler ash blowing equipment according to claim 5 is characterized in that: The connection plate (22) is rotatably connected to a backing plate (24), the backing plate (24) is axially slidably connected to the outer sleeve (11) and circumferentially clamped, and an elastic member (25) is provided between the backing plate (24) and the first heat insulation plate (13).

7. The automatic boiler ash blowing equipment according to claim 6 is characterized in that: The elastic member (25) is a spring whose two ends are respectively in contact with the pad (24) and the first heat insulation plate (13).

8. The boiler ash automatic blowing equipment according to claim 5 is characterized by: The inner air delivery pipe (21) is fixedly connected to an impeller (26).

9. The automatic boiler ash blowing equipment according to claim 1 is characterized by: The inner air delivery pipe (21) is fixedly connected with a clamping ring (27), and the air intake pipe (12) is fixedly connected with a sealing clamping plate (16) clamped with the clamping ring (27), and the sealing clamping plate (16) is perpendicular to the air intake pipe (12).

10. The boiler ash automatic blowing equipment according to claim 9 is characterized in that: The clamping ring (27) is provided with a flexible sealing ring (28) which abuts against the air intake pipe (12).

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