A boiler sootblowing device

Abstract

The present invention discloses a boiler soot blowing device, which includes a housing unit comprising a support shell, an upper end cover arranged at the upper end of the support shell, and a lower end cover arranged in the middle section of the support shell; a transmission unit comprising an impeller and a plurality of driven gears arranged around the bottom of the impeller; and a transmission unit comprising a plurality of bent pipes arranged in the middle section of the support shell and a plurality of jet components arranged at the bottom of the support shell. The beneficial effects of the present invention are that it can improve the action range of boiler soot blowing, improve work efficiency, and at the same time can adjust the soot blowing frequency.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal power plant boilers, and particularly to a boiler soot blowing device. Background Art

[0002] Thermal power plants generate electricity mainly by using steam in boilers to drive steam turbines.

[0003] The normal operation of boilers will generate a large amount of dust, which is likely to accumulate on the heating surfaces of boilers, such as convection tubes, etc., resulting in a reduction in the thermal efficiency of the boilers. To prevent ash accumulation in boilers, soot blowing devices are usually installed in boilers. Existing soot blowing equipment is large in size, inconvenient to install, and its effective range in the boiler is not comprehensive, there are dead angles in the blowing, the soot blowing efficiency is low, and the soot blowing effect is poor. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title, but such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the problems existing in the above or the prior art, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a boiler soot blowing device that can solve the problems of incomplete soot blowing and low efficiency during the boiler soot blowing process.

[0007] To solve the above technical problems, the present invention provides the following technical solution: A boiler soot blowing device, which includes a housing unit, including a support shell, an upper end cover disposed at the upper end of the support shell, and a lower end cover disposed in the middle section of the support shell; a transmission unit, including an impeller and a plurality of driven gears disposed around the bottom of the impeller; a transmission unit, including a plurality of elbow pipes disposed in the middle section of the support shell and a plurality of jet components disposed at the bottom of the support shell.

[0008] As a preferred embodiment of the boiler soot blowing device of the present invention, wherein: the support shell includes an impeller shell, a straight pipe penetrating through the bottom of the impeller shell, a plurality of ventilation openings penetrating through the periphery of the straight pipe, a plurality of through holes disposed at the bottom of the impeller shell, a plurality of columns disposed at the outer edge of the bottom of the impeller shell, a support disk disposed at the bottom of the columns, and a connecting ring disposed at the bottom of the support disk.

[0009] As a preferred embodiment of the boiler soot blowing device of the present invention, wherein: the support shell further includes a plurality of air inlets penetrating through its outer side.

[0010] As a preferred embodiment of the boiler soot blowing device of the present invention, wherein: the jet assembly includes a folded pipe, a nozzle disposed at the bottom of the folded pipe, an adjusting member disposed on one side of the folded pipe, and a pressing member disposed inside the folded pipe.

[0011] As a preferred embodiment of the boiler soot blowing device of the present invention, wherein: the folded pipe is in a bent shape; the folded pipe includes a gas storage cavity penetrating through its bottom, a gas nozzle penetrating through the bottom of the gas storage cavity, and a plurality of guide rails disposed inside the gas storage cavity.

[0012] As a preferred embodiment of the boiler soot blowing device of the present invention, wherein: the nozzle includes an air hole penetrating through its bottom, and a plurality of auxiliary holes disposed around the air hole.

[0013] As a preferred embodiment of the boiler soot blowing device of the present invention, wherein: the adjusting member includes a ventilation seat penetrating through the top of the gas storage cavity, and an adjusting column disposed inside the ventilation seat.

[0014] As a preferred embodiment of the boiler soot blowing device of the present invention, wherein: the pressing member includes a cross bar disposed inside the gas storage cavity, a pair of ejector rods disposed at the top of the gas nozzle, a pressure plate disposed inside the gas storage cavity, a high-pressure spring disposed at the bottom of the pressure plate, and a movable plate disposed in the middle of the pressure plate; the pressure plate includes a round hole disposed at its center, a pair of square holes disposed on both sides of the round hole, barbs disposed inside the square holes, a pair of limiting columns disposed on the other two sides of the round hole, and a return spring disposed on the column body of the limiting column; the movable plate includes a pair of J-shaped rods disposed at its bottom.

[0015] As a preferred embodiment of the boiler soot blowing device of the present invention, wherein: the impeller includes a transmission shaft disposed at its bottom, and a driving gear disposed at the bottom of the transmission shaft.

[0016] As a preferred embodiment of the boiler soot blowing device of the present invention, wherein: the bent pipe is fixedly connected to the support shell; the bent pipe is movably connected to the jet assembly; the driven gear is fixedly connected to the jet assembly.

[0017] Advantages of the present invention: The present invention can improve the action range of boiler soot blowing, improve work efficiency, and at the same time can adjust the soot blowing frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0019] Figure 1 It is the overall three-dimensional view of the boiler soot blower.

[0020] Figure 2 It is the full cross-sectional view of the boiler soot blower.

[0021] Figure 3 It is the left view of the jet assembly of the boiler soot blower and its A-A cross-sectional view.

[0022] Figure 4 It is the front view of the jet assembly of the boiler soot blower and its B-B cross-sectional view.

[0023] Figure 5 It is the structural diagram of the pressure plate and the movable plate of the boiler soot blower. Detailed Embodiments

[0024] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following will provide a detailed description of the specific embodiments of the present invention in conjunction with the drawings of the specification.

[0025] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0026] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.

[0027] Embodiment 1

[0028] Refer to Figures 1 - 5 , which is the first embodiment of the present invention. This embodiment provides a boiler soot blower, which includes a housing unit 100, including a support shell 101, an upper end cover 102 provided at the upper end of the support shell 101, and a lower end cover 103 provided in the middle section of the support shell 101;

[0029] A transmission unit 200, including an impeller 201, and a plurality of driven gears 202 provided around the bottom of the impeller 201;

[0030] The transfer unit 300 includes a plurality of bent pipes 301 disposed in the middle section of the support shell 101 and a plurality of jet components 302 disposed at the bottom of the support shell 101.

[0031] Furthermore, the support shell 101 includes an impeller shell 101a, a straight pipe 101b penetrating through the bottom of the impeller shell 101a, a plurality of ventilation openings 101c penetrating around the straight pipe 101b, a plurality of through holes 101d disposed at the bottom of the impeller shell 101a, a plurality of columns 101e disposed at the outer edge of the bottom of the impeller shell 101a, a support disk 101f disposed at the bottom of the column 101e, and a connection ring 101g disposed at the bottom of the support disk 101f.

[0032] Furthermore, the support shell 101 further includes a plurality of air inlets 101h penetrating through its outer side.

[0033] Furthermore, the jet component 302 includes a folded pipe 302a, a nozzle 302b disposed at the bottom of the folded pipe 302a, an adjusting component 302c disposed on one side of the folded pipe 302a, and a pressing component 302d disposed inside the folded pipe 302a.

[0034] Furthermore, the folded pipe 302a is in a bent shape; the folded pipe 302a includes an air storage cavity 302a-1 penetrating through its bottom, an air nozzle 302a-2 penetrating through the bottom of the air storage cavity 302a-1, and a plurality of guide rails 302a-3 disposed inside the air storage cavity 302a-1.

[0035] Furthermore, the nozzle 302b includes an air hole 302b-1 penetrating through its bottom and a plurality of auxiliary holes 302b-2 disposed around the air hole 302b-1.

[0036] Furthermore, the adjusting component 302c includes a ventilation seat 302c-1 penetrating through the top of the air storage cavity 302a-1 and an adjusting column 302c-2 disposed inside the ventilation seat 302c-1.

[0037] Furthermore, the pressing component 302d includes a cross bar 302d-1 disposed inside the air storage cavity 302a-1, a pair of ejector rods 302d-2 disposed at the top of the air nozzle 302a-2, a pressure plate 302d-3 disposed inside the air storage cavity 302a-1, a high-pressure spring 302d-4 disposed at the bottom of the pressure plate 302d-3, and a movable plate 302d-5 disposed in the middle of the pressure plate 302d-3;

[0038] The pressure plate 302d-3 includes a round hole 302d-31 provided at its center, a pair of square holes 302d-32 provided on both sides of the round hole 302d-31, barbs 302d-33 provided inside the square holes 302d-32, a pair of limit posts 302d-34 provided on the other two sides of the round hole 302d-31, and a return spring 302d-35 provided on the column body of the limit posts 302d-34;

[0039] The movable plate 302d-5 includes a pair of J-shaped rods 302d-51 provided at its bottom.

[0040] Further, the impeller 201 includes a transmission shaft 201a provided at its bottom, and a driving gear 201b provided at the bottom of the transmission shaft 201a.

[0041] Further, the elbow 301 is fixedly connected to the support shell 101; the elbow 301 is movably connected to the jet assembly 302; the driven gear 202 is fixedly connected to the jet assembly 302.

[0042] It should be noted that the support shell 101 is fixedly connected to the upper end cover 102, which can keep the inside of the impeller shell 101a sealed except for the reserved holes. The lower end cover 103 is used to support the impeller 201 and block the bottom of the straight pipe 101b. The impeller 201 installed inside the impeller shell 101a can be driven by high-speed air flow. The driving gear 201b is fixedly connected to the bottom of the impeller 201, and the driving gear 201b meshes with the two driven gears 202 on both sides of it. The elbow 301 is fixedly connected to the air vent 101c, and the bottom of the elbow 301 is movably connected to the top of the jet assembly 302. The air flow can mainly enter the impeller shell 101a through the air inlet 101h, then enter the straight pipe 101b through the through hole 101d, then enter the jet assembly 302 through the elbow 301, and finally leak out from the nozzle 302b.

[0043] Preferably, two air inlets 101h are fixedly connected to the outer circumference of the support shell 101. The air inlets 101h are symmetrically distributed. There is an air passage inside which is communicated with the inside of the impeller shell 101a. The air passage is tangent to the circle. In addition to connecting the high-pressure air source, for the flanges of the two air inlets 101h, one or both of the two air inlets 101h can be connected to the air source. After the high-speed air flow enters the air inlets 101h, it directly acts on the blades of the impeller 201, causing the impeller 201 to rotate. The straight pipe 101b is fixedly connected to the impeller shell 101a. The center of the straight pipe 101b is penetrated by the transmission shaft 201a. A cylindrical chamber is provided inside the straight pipe 101b. This chamber is communicated with the inside of the impeller shell 101a through a group of through holes 101d arranged at the bottom of the impeller shell 101a. The bottom of the straight pipe 101b is fixedly connected to the lower end cover 103. The lower end cover 103 is also penetrated by the transmission shaft 201a. Therefore, the gas entering the inside of the straight pipe 101b can only be output through the vent holes 101c. The number of vent holes 101c is two, which are symmetrically distributed and fixedly connected to the straight pipe 101b. The inner cavity of the vent hole 101c is communicated with the straight pipe 101b. The outer end of the vent hole 101c is fixedly connected to one end of the elbow pipe 301. A group of columns 101e are arranged in an array along the outer edge of the bottom of the impeller shell 101a. The columns 101e are fixedly connected to the support disk 101f. The support disk 101f is used to support the gear set and the jet assembly 302. The connecting ring 101g is fixedly arranged at the bottom of the support disk 101f and can be used to connect the boiler or connect the protective shell to protect the jet assembly 302.

[0044] Preferably, a transmission shaft 201a is fixedly connected to the bottom of the impeller 201. A driving gear 201b is fixedly connected to the bottom of the transmission shaft 201a. When the impeller 201 rotates, it drives the driving gear 201b to rotate through the transmission shaft 201a. The shaft body of the transmission shaft 201a is movably connected to the center of the bottom of the impeller shell 101a and the lower end cover 103 respectively. The driving gear 201b can mesh with two driven gears 202 at the same time and drive the driven gears 202 to rotate. The driven gears 202 are symmetrically distributed on both sides of the driving gear 201b.

[0045] Preferably, a driven gear 202 is fixedly connected to the upper neck of the folded pipe 302a. The top of the folded pipe 302a can be movably connected to the elbow pipe 301. There is a limiting structure between the two. The number of the folded pipes 302a is two, which is the same as the number of the driven gears 202. The driven gear 202 can drive the folded pipe 302a to rotate, that is, the jet assembly 302 can rotate periodically. The adjusting component 302c can relieve the pressure of the gas in the air storage cavity 302a-1. The pressing component 302d is arranged in the air storage cavity 302a-1 and can realize the periodic injection of the gas. A nozzle 302b is also threadedly connected to the bottom of the folded pipe 302a.

[0046] Preferably, when the flow rate of the gas source gas is constant, the speed of gas accumulation in the gas storage cavity 302a-1 is indirectly adjusted through the adjusting member 302c, so as to adjust the movement period of the pressing member 302d and realize the adjustable periodic injection of gas.

[0047] Preferably, the nozzle 302b is in an inverted cone shape, and an air hole 302b-1 is opened in its center. Auxiliary holes 302b-2 are also opened around the air hole 302b-1 and are distributed in a uniform conical shape, which can expand the gas injection range.

[0048] Preferably, the ventilation seat 302c-1 is small in volume and is arranged on the outer side of the top of the gas storage cavity 302a-1. The inside of the ventilation seat 302c-1 is communicated with the gas storage cavity 302a-1. A through hole is also opened on the side of the ventilation seat 302c-1, and an adjusting column 302c-2 is arranged through the top. The adjusting column 302c-2 is movably connected with the ventilation seat 302c-1. Personnel can rotate the adjusting column 302c-2 through the top of the adjusting column 302c-2. The inside of the adjusting column 302c-2 is communicated with the gas storage cavity 302a-1, and a through hole is also opened on the side. This through hole is aligned with the through hole of the above-mentioned ventilation seat 302c-1. When the two holes are aligned, the exhaust is the largest. When the two holes are completely misaligned, no exhaust can occur.

[0049] Preferably, the folded tube 302a is in a Z shape, and the gas injection angle forms a certain angle with the axis of the driven gear 202, which can present a range injection when the jet assembly 302 rotates. The lower end of the folded tube 302a is provided with a gas storage cavity 302a-1, and the gas storage cavity 302a-1 is fixedly connected with the folded tube 302a. The gas storage cavity 302a-1 is fixedly connected with a gas nozzle 302a-2, and the bottom of the gas nozzle 302a-2 can be threadedly connected with the nozzle 302b.

[0050] Preferably, a pair of guide rails 302a-3 are fixedly connected to the bottom of the gas storage cavity 302a-1 near the inner wall. The two guide rails 302a-3 are symmetrically distributed and are used to constrain the pressing plate 302d-3 to move linearly. A high-pressure spring 302d-4 is arranged in the gap between the guide rail 302a-3 and the inner wall of the gas storage cavity 302a-1. One end of the high-pressure spring 302d-4 is fixedly connected with the pressing plate 302d-3, and the other end is fixedly connected with the bottom of the gas storage cavity 302a-1. A cross bar 302d-1 is fixedly arranged perpendicular to the connection line of the two guide rails 302a-3, and its position is at the upper end inside the gas storage cavity 302a-1, which acts on the movable plate 302d-5 and restricts the upper limit of the stroke of the pressing plate 302d-3. The movable plate 302d-5 and the pressing plate 302d-3 can cooperate with each other, and both can cooperate with the ejector rod 302d-2.

[0051] Preferably, the pressure plate 302d-3 can move on the guide rail 302a-3, and the movable plate 302d-5 can move on the limit column 302d-34. There are two limit columns 302d-34, and a limit plate is arranged on them. A reset spring 302d-35 is arranged on the column body. The two ends of the reset spring 302d-35 are respectively fixedly connected to the bottom of the movable plate 302d-5 and the bottom of the circular groove. The circular groove is opened at the upper end of the circular hole 302d-31, and the diameter is larger than the circular hole 302d-31. It is used to accommodate the movable plate 302d-5. In the vertical direction of the connection line of the two limit columns 302d-34 There is a square hole 302d-32, and the square hole 302d-32 is set through the bottom of the circular groove. There is a barb 302d-33 inside the square hole 302d-32, which can cooperate with the J-shaped rod 302d-51 to form a limit. After the movable disk 302d-5 falls into the circular groove, the barb 302d-33 and the end of the J-shaped rod 302d-51 limit each other, and the push rod 302d-2 is aligned with the square hole 302d-32, which can push open the end of the J-shaped rod 302d-51, so that the end of the J-shaped rod 302d-51 is separated from the barb 302d-33, and then the movable disk 302d-5 is lifted up.

[0052] Preferably, after the pressure gradually forms inside the air storage chamber 302a-1, the pressure plate 302d-3 and the movable plate 302d-5 are initially sealed, and the high-pressure gas presses the pressure plate 302d-3 downward, and the high-pressure spring 302d-4 is gradually compressed until the pressure plate 302d-3 and the movable plate 302d-5 are about to bottom out. At this time, the top rod 302d-2 squeezes the J-shaped rod 302d-51, and the movable plate 302d-5 loses its constraint and is bounced up by the return spring 302d-35, and the round hole 302d-3 After the air is opened, the gas is ejected in a short time, the air pressure in the air storage chamber 302a-1 decreases rapidly, and the high-pressure spring 302d-4 pushes the pressure plate 302d-3 to rise until the movable plate 302d-5 is blocked after it presses against the cross bar 302d-1. At this time, the pressure plate 302d-3 continues to rise until the pressure plate 302d-3 is also blocked by the cross bar 302d-1. At this time, the pressure plate 302d-3 and the movable plate 302d-5 form a sealed state after being constrained, and the return spring 302d-35 enters a compressed state. Gas injection has a good cleaning effect on dust accumulation.

[0053] When in use, a stable gas source is connected to the two air inlets 101h, and the adjusting column 302c-2 is rotated to leave an air outlet of a suitable size or directly close the air outlet. Then the gas source is turned on, and the gas drives the impeller 201 to rotate. The impeller 201 drives the driven gear 202 to rotate through the driving gear 201b, and the driven gear 202 drives the jet assembly 302 to rotate. At the same time, the gas entering the impeller shell 101a enters the straight pipe 101b through the through hole 101d, and enters The gas entering the straight pipe 101b enters the bent pipe 301 through the vent 101c. The bottom of the bent pipe 301 forms a seal with the top of the folded pipe 302a and the two are movably connected. Then the gas enters the inside of the folded pipe 302a from the bent pipe 301. At this time, the pressure plate 302d-3 and the movable plate 302d-5 are both in a sealed state after being constrained, and both are supported by the cross bar 302d-1. The gas gradually accumulates in the gas storage chamber 302a-1 to form a high pressure, which can push the pressure plate 302d-3 to move the movable plate 302d-5. 302d-3 and the movable disk 302d-5 move downward, and the high-pressure spring 302d-4 is compressed during this period, until the end of the J-shaped rod 302d-51 on the movable disk 302d-5 is pushed outward by the push rod 302d-2, and the movable disk 302d-5 is bounced up by the return spring 302d-35, and the circular hole 302d-31 is exposed, and then the compressed gas flows along the circular hole 302d-31 through the gas nozzle 302a-2 to the nozzle 302b, and finally from the nozzle 30 2b hole, at this time, the air storage chamber 302a-1 has been depressurized, and the pressure plate 302d-3 is lifted in the opposite direction by the high-pressure spring 302d-4, and the movable plate 302d-5 first contacts the cross bar 302d-1, and then the pressure plate 302d-3 follows. Under the obstruction of the cross bar 302d-1, the two are again limited by the barb 302d-33 and the J-shaped rod 302d-51 to form a seal. The reset spring 302d-35 is compressed in this process and waits for the next cycle. During the gas circulation process, the driven gear 202 rotates continuously, and the two jet components 302 perform periodic sweeping with a gradual speed change. In the above process, the rotating adjustment column 302c-2 controls the size of its vent, which can adjust the effect of slowing down the speed of gas accumulation in the air storage chamber 302a-1, thereby controlling the gas injection interval.

[0054] In summary, this design can increase the range of boiler sootblowing, improve work efficiency, and at the same time adjust the sootblowing frequency.

[0055] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those skilled in the art who refer to this disclosure should readily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function as described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Accordingly, the present invention is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0056] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present invention, or those features that are not relevant to the implementation of the present invention).

[0057] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, fabrication and production.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A boiler soot blowing device, characterized in that: including, a housing unit (100) including a support shell (101), an upper end cover (102) provided at the upper end of the support shell (101), and a lower end cover (103) provided in the middle section of the support shell (101); a transmission unit (200) including an impeller (201) and a plurality of driven gears (202) provided around the bottom of the impeller (201); a transmission unit (300) including a plurality of elbow pipes (301) provided in the middle section of the support shell (101) and a plurality of jet components (302) provided at the bottom of the support shell (101); the support shell (101) includes an impeller shell (101a), a straight pipe (101b) penetrating through the bottom of the impeller shell (101a), a plurality of ventilation openings (101c) penetrating through the periphery of the straight pipe (101b), a plurality of through holes (101d) provided at the bottom of the impeller shell (101a), a plurality of columns (101e) provided at the outer edge of the bottom of the impeller shell (101a), a support disk (101f) provided at the bottom of the columns (101e), and a connecting ring (101g) provided at the bottom of the support disk (101f); the support shell (101) further includes a plurality of air inlets (101h) penetrating through the outside thereof; the jet component (302) includes a bent pipe (302a), a nozzle (302b) provided at the bottom of the bent pipe (302a), an adjusting member (302c) provided on one side of the bent pipe (302a), and a pressing member (302d) provided inside the bent pipe (302a); the bent pipe (302a) is bent; the bent pipe (302a) includes an air storage cavity (302a-1) penetrating through the bottom thereof, an air nozzle (302a-2) penetrating through the bottom of the air storage cavity (302a-1), and a plurality of guide rails (302a-3) provided inside the air storage cavity (302a-1); the nozzle (302b) includes an air hole (302b-1) penetrating through the bottom thereof and a plurality of auxiliary holes (302b-2) provided around the air hole (302b-1); the adjusting member (302c) includes a ventilation seat (302c-1) penetrating through the top of the air storage cavity (302a-1) and an adjusting column (302c-2) provided inside the ventilation seat (302c-1); the pressing member (302d) includes a cross bar (302d-1) provided inside the air storage cavity (302a-1), a pair of ejector rods (302d-2) provided at the top of the air nozzle (302a-2), a pressing disk (302d-3) provided inside the air storage cavity (302a-1), a high-pressure spring (302d-4) provided at the bottom of the pressing disk (302d-3), and a movable disk (302d-5) provided in the middle of the pressing disk (302d-3); The pressure plate (302d-3) includes a circular hole (302d-31) provided at its center, a pair of square holes (302d-32) provided on both sides of the circular hole (302d-31), barbs (302d-33) provided inside the square holes (302d-32), a pair of limit posts (302d-34) provided on the other two sides of the circular hole (302d-31), and a return spring (302d-35) provided on the column body of the limit posts (302d-34); The movable plate (302d-5) includes a pair of J-shaped rods (302d-51) provided at its bottom.

2. The boiler soot blowing device according to claim 1, wherein: The impeller (201) includes a transmission shaft (201a) provided at its bottom, and a driving gear (201b) provided at the bottom of the transmission shaft (201a).

3. The boiler soot blowing device according to claim 2, wherein: The elbow pipe (301) is fixedly connected to the support shell (101); the elbow pipe (301) is movably connected to the jet assembly (302); the driven gear (202) is fixedly connected to the jet assembly (302).

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