WO2024060338A1

WO2024060338A1 - Boiler soot blowing device

Info

Publication number: WO2024060338A1
Application number: PCT/CN2022/125466
Authority: WO
Inventors: 赵亮; 刘峥嵘; 石珊珊; 董鹏; 杨伟山; 李念震; 杨柏依; 孙式洋; 马永清; 亓秀华
Original assignee: 华能莱芜发电有限公司
Priority date: 2022-09-21
Filing date: 2022-10-14
Publication date: 2024-03-28
Also published as: CN115682001A

Abstract

A boiler soot blowing device, comprising: a housing unit (100), which comprises a support housing (101), an upper end cover (102) provided at the upper end of the support housing (101), and a lower end cover (103) provided in the middle section of the support housing (101); a drive unit (200), which comprises an impeller (201) and a plurality of driven gears (202) provided around the bottom of the impeller (201); and a transfer unit (300), which comprises a plurality of elbow pipes (301) provided in the middle section of the support housing (101), and a plurality of jet-flow assemblies (302) provided at the bottom of the support housing (101). The device has the beneficial effects of broadening the action range of boiler soot blowing, improving the working efficiency, and meanwhile adjusting the frequency of soot blowing.

Description

A boiler soot blowing device

Technical field

The invention relates to the technical field of boilers in thermal power plants, in particular to a boiler soot blowing device.

Background technique

Thermal power plants mainly use steam to drive steam turbines to generate electricity through boilers.

The normal operation of the boiler will produce a large amount of dust, which is easy to accumulate on the heating surface of the boiler, such as the convection tube, resulting in a reduction in the thermal efficiency of the boiler. In order to prevent dust accumulation in the boiler, a soot blowing device is usually installed in the boiler. The existing soot blowing equipment is large in size, inconvenient to install, and its scope of action in the boiler is not comprehensive. There are dead corners in the blowing, and the soot blowing efficiency is low. Gray effect is poor.

Contents of the invention

The purpose of this section is to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, the abstract and the title of the invention to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions cannot be used to limit the scope of the invention.

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

Therefore, the object of the present invention is to provide a boiler soot blowing device that can solve the problems of insufficient soot blowing and low efficiency during the boiler soot blowing process.

In order to solve the above technical problems, the present invention provides the following technical solution: a boiler soot blowing device, which includes a shell unit, a support shell, an upper end cover disposed on the upper end of the support shell, and a middle section of the support shell. Lower end cover; transmission unit, including an impeller, and a plurality of driven gears arranged around the bottom of the impeller; transmission unit, including a plurality of elbows arranged in the middle section of the support shell, multiple bends arranged at the bottom of the support shell jet component.

As a preferred solution of the boiler soot blowing device of the present invention, the support shell includes an impeller shell, a straight pipe disposed through the bottom of the impeller shell, and a plurality of vents disposed around the straight pipe, A plurality of through holes provided at the bottom of the impeller shell, a plurality of uprights provided at the outer edge of the bottom of the impeller shell, a support plate provided at the bottom of the uprights, and a connecting ring provided at the bottom of the support plate.

As a preferred solution of the boiler soot blowing device of the present invention, the support shell further includes a plurality of air inlets disposed through the outside thereof.

As a preferred solution of the boiler soot blowing device of the present invention, the jet assembly includes a folded tube, a nozzle provided at the bottom of the folded tube, and an adjustment component provided on one side of the folded tube, and a backlog component disposed inside the folded tube.

As a preferred solution of the boiler soot blowing device of the present invention, the folded tube is in a bent shape; the folded tube includes a gas storage cavity arranged through the bottom, and a gas storage cavity arranged through the gas storage cavity. The air nozzle at the bottom of the cavity, and a plurality of guide rails arranged inside the air storage cavity.

As a preferred solution of the boiler soot blowing device of the present invention, the nozzle head includes an air hole provided through the bottom thereof, and a plurality of auxiliary holes provided around the air hole.

As a preferred solution of the boiler soot blowing device of the present invention, the adjustment component includes a ventilation seat disposed through the top of the gas storage cavity, and an adjustment column disposed inside the ventilation seat.

As a preferred solution of the boiler soot blowing device of the present invention, the backlog component includes a cross bar provided inside the gas storage chamber, a pair of push rods provided on the top of the gas nozzle, There is a pressure plate inside the gas storage chamber, a high-pressure spring provided at the bottom of the pressure plate, and a movable plate provided in the middle of the pressure plate; the pressure plate includes a circular hole provided in its center, and a circular hole provided in the circular hole. A pair of square holes on both sides, barbs provided inside the square holes, a pair of limiting posts provided on the other two sides of the round holes, and a return spring provided on the body of the limiting posts; The movable plate includes a pair of J-shaped rods arranged at its bottom.

As a preferred solution of the boiler soot blowing device of the present invention, the impeller includes a transmission shaft provided at the bottom of the impeller, and a driving gear provided at the bottom of the transmission shaft.

As a preferred solution of the boiler sootblowing device of the present invention, wherein: the bent pipe is fixedly connected to the supporting shell; the bent pipe is movably connected to the jet assembly; and the driven gear is fixedly connected to the jet assembly.

Beneficial effects of the present invention: The present invention can increase the range of boiler soot blowing, improve work efficiency, and at the same time adjust the soot blowing frequency.

Description of drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting any creative effort. in:

Figure 1 is an overall three-dimensional view of the boiler soot blowing device.

Figure 2 is a full cross-sectional view of the boiler soot blowing device.

Fig. 3 is a left side view of the jet assembly of the boiler sootblower and its A-A cross-sectional view.

Figure 4 is the front view of the jet assembly of the boiler soot blowing device and its B-B cross-section.

Figure 5 is a structural diagram of the pressure plate and movable plate of the boiler soot blowing device.

Detailed ways

In order to make the above objects, features and advantages of the present invention more obvious and understandable, the specific implementation modes of the present invention will be described in detail below with reference to the accompanying drawings.

Many specific details are set forth in the following description to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Those skilled in the art can do so without departing from the connotation of the present invention. Similar generalizations are made, and therefore the present invention is not limited to the specific embodiments disclosed below.

Second, reference herein to "one embodiment" or "an embodiment" refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. "In one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

Example 1

Referring to Figures 1 to 5, a first embodiment of the present invention is provided. This embodiment provides a boiler soot blowing device, which includes a housing unit 100, a support shell 101, and an upper end cover 102 disposed on the upper end of the support shell 101. And the lower end cover 103 provided in the middle section of the support shell 101;

The transmission unit 200 includes an impeller 201 and a plurality of driven gears 202 arranged around the bottom of the impeller 201;

The transfer unit 300 includes a plurality of elbows 301 provided in the middle section of the support shell 101 and a plurality of jet assemblies 302 provided at the bottom of the support shell 101 .

Furthermore, the support shell 101 includes an impeller shell 101a, a straight pipe 101b penetrating the bottom of the impeller shell 101a, a plurality of vents 101c penetrating around the straight pipe 101b, a plurality of through holes 101d arranged at the bottom of the impeller shell 101a, a plurality of columns 101e arranged on the outer edge of the bottom of the impeller shell 101a, a support plate 101f arranged at the bottom of the columns 101e, and a connecting ring 101g arranged at the bottom of the support plate 101f.

Furthermore, the support shell 101 also includes a plurality of air inlets 101h disposed through the outer side thereof.

Further, the jet assembly 302 includes a folded tube 302a, a nozzle 302b provided at the bottom of the folded tube 302a, an adjustment component 302c provided on one side of the folded tube 302a, and a backlog component 302d provided inside the folded tube 302a.

Furthermore, the folded tube 302a is in a bent shape; the folded tube 302a includes an air storage chamber 302a-1 provided through the bottom of the air storage chamber 302a-1, an air nozzle 302a-2 provided through the bottom of the air storage chamber 302a-1, and an air nozzle 302a-2 provided at the bottom of the air storage chamber 302a-1. Multiple guide rails 302a-3 inside the air storage chamber 302a-1.

Further, the nozzle 302b includes an air hole 302b-1 provided through the bottom thereof, and a plurality of auxiliary holes 302b-2 provided around the air hole 302b-1.

Further, the adjustment component 302c includes a ventilation seat 302c-1 provided through the top of the air storage cavity 302a-1, and an adjustment column 302c-2 provided inside the ventilation seat 302c-1.

Further, the backlog component 302d includes a cross bar 302d-1 provided inside the air storage cavity 302a-1, a pair of push rods 302d-2 provided at the top of the air nozzle 302a-2, and a pair of push rods 302d-2 provided inside the air storage cavity 302a-1. The pressure plate 302d-3, the high-pressure spring 302d-4 provided at the bottom of the pressure plate 302d-3, and the movable plate 302d-5 provided in the middle of the pressure plate 302d-3;

The pressure plate 302d-3 includes a round hole 302d-31 provided in its center, a pair of square holes 302d-32 provided on both sides of the round hole 302d-31, and a barb 302d-33 provided inside the square hole 302d-32. A pair of limiting posts 302d-34 on the other two sides of the circular hole 302d-31, and a return spring 302d-35 provided on the body of the limiting posts 302d-34;

The movable plate 302d-5 includes a pair of J-shaped rods 302d-51 disposed at its bottom.

Further, the impeller 201 includes a transmission shaft 201a provided at the bottom thereof, and a driving gear 201b provided at the bottom of the transmission shaft 201a.

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

It should be noted that the support shell 101 is fixedly connected to the upper end cover 102 so that the inside of the impeller shell 101a can be kept sealed except for the reserved holes. The lower end cover 103 is used to support the impeller 201 and seal the bottom of the straight pipe 101b. The impeller 201 is installed on The interior of the impeller shell 101a can be driven by high-speed airflow. The bottom of the impeller 201 is fixedly connected to the driving gear 201b. The driving gear 201b meshes with the two driven gears 202 on both sides. The elbow 301 is fixedly connected to the vent 101c. The bottom of the elbow 301 is connected to the vent 101c. The top of the jet assembly 302 is movably connected, and the airflow 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 escape from the nozzle 302b.

Preferably, two air inlets 101h are fixedly connected to the outer circumference of the support shell 101. The air inlets 101h are symmetrically distributed in the center. There is an air passage inside and is connected with the interior of the impeller shell 101a. The air passage is tangent to the circle, and the air inlet 101h is symmetrically distributed in the center. In addition to the need to connect the high-pressure air source to the port 101h flange, you can choose one or both of the two air inlets 101h to connect to the air source. After the high-speed airflow enters the air inlet 101h, it directly acts on the blades of the impeller 201, causing the impeller 201 to rotate. , the straight tube 101b is fixedly connected to the impeller shell 101a, and the center of the straight tube 101b is passed through by the transmission shaft 201a. There is a cylindrical chamber in the straight tube 101b, which communicates with the impeller through a set of through holes 101d arrayed at the bottom of the impeller shell 101a. The shell 101a is internally connected, and the bottom of the straight pipe 101b is fixedly connected to the lower end cover 103. The lower end cover 103 is also passed through by the transmission shaft 201a. Therefore, the gas entering the inside of the straight pipe 101b can only be output through the vent 101c. There are two vents 101c. , symmetrically distributed and fixedly connected to the straight pipe 101b, the inner cavity of the vent 101c is connected to the straight pipe 101b, the outer end of the vent 101c is fixedly connected to one end of the bent pipe 301, and a set of uprights 101e are arrayed on the outer edge of the bottom of the impeller shell 101a. The uprights 101e It is fixedly connected to the support plate 101f. The support plate 101f is used to support the gear set and the jet assembly 302. The connecting ring 101g is fixedly provided at the bottom of the support plate 101f and can be used to connect the boiler or connect a protective shell to protect the jet assembly 302.

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

Preferably, the neck of the upper end of the folding tube 302a is fixedly connected with a driven gear 202, and the top of the folding tube 302a can be movably connected with the curved tube 301, and there is a limit structure in the connection between the two. The number of folding tubes 302a is two, which is the same as the number of driven gears 202. The driven gear 202 can drive the folding tube 302a to rotate, that is, the jet assembly 302 can rotate periodically. The regulating component 302c can release the gas in the gas storage chamber 302a-1, and the backlog component 302d is set in the gas storage chamber 302a-1 to realize the periodic injection of gas. The nozzle 302b is also threadedly connected to the bottom of the folding tube 302a.

Preferably, when the gas source gas flow rate is constant, the speed of gas accumulation in the gas storage chamber 302a-1 is indirectly adjusted through the adjusting component 302c, thereby adjusting the movement period of the accumulating component 302d to achieve periodic adjustable gas injection.

Preferably, the nozzle 302b is in the shape of an inverted cone, with an air hole 302b-1 in the center, and auxiliary holes 302b-2 distributed in a uniform cone shape around the air hole 302b-1, which can expand the gas injection range.

Preferably, the ventilation seat 302c-1 is small in size and is arranged outside the top of the air storage chamber 302a-1. The inside of the ventilation seat 302c-1 is connected with the air storage chamber 302a-1. There is also a through hole on the side of the ventilation seat 302c-1. An adjusting column 302c-2 is provided through the top. The adjusting column 302c-2 is movably connected to 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 connected to the air storage chamber. 302a-1 is connected, and a through hole is also provided on the side, which is aligned with the through hole of the ventilation seat 302c-1. When the two holes are aligned, the exhaust is maximum. When the two holes are completely misaligned, exhaust cannot be achieved.

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

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 used to constrain the pressure plate 302d-3 to perform linear motion. The guide rails 302a A high-pressure spring 302d-4 is provided in the gap between -3 and the inner wall of the gas storage cavity 302a-1. One end of the high-pressure spring 302d-4 is fixedly connected to the pressure plate 302d-3, and the other end is fixedly connected to the bottom of the gas storage cavity 302a-1. , a horizontal bar 302d-1 is fixedly arranged perpendicular to the connection between the two guide rails 302a-3. Its position is at the upper end of the air storage chamber 302a-1, which acts on the movable plate 302d-5 and controls the stroke of the pressure plate 302d-3. The upper limit is constrained, the movable plate 302d-5 and the pressure plate 302d-3 can cooperate, and both can cooperate with the push rod 302d-2.

Preferably, the pressure plate 302d-3 can move on the guide rail 302a-3, and the movable plate 302d-5 can move on the limiting column 302d-34. There are two limiting columns 302d-34, and there are limited plates on them. , the column body is provided with a return spring 302d-35. The two ends of the return 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. , used to accommodate the movable plate 302d-5. In the vertical direction of the connection between the two limiting posts 302d-34, there is a square hole 302d-32. The square hole 302d-32 is provided at the bottom of the circular groove and is inside the square hole 302d-32. There is a barb 302d-33, which can cooperate with the J-shaped rod 302d-51 and form a limit. The movable plate 302d-5 falls behind the circular groove, and the barb 302d-33 and the end of the J-shaped rod 302d-51 limit each other. The rod 302d-2 is aligned with the square hole 302d-32, and can push up 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 pushed up.

Preferably, after the high pressure gradually forms inside the gas storage chamber 302a-1, the pressure plate 302d-3 and the movable plate 302d-5 initially form a sealed state, 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 touch the bottom. At this time, the push rod 302d-2 squeezes the J-shaped rod 302d-51, and the movable plate 302d-5 loses its restraint and is reset by the return spring 302d- 35 bounces up, and after the circular hole 302d-31 is opened, the gas is ejected in a short time, the air pressure in the gas 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 After resisting the cross bar 302d-1, it is blocked. 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 are both blocked. The other forms a constrained sealing state, and the return spring 302d-35 enters a compressed state. Gas injection has a good cleaning effect on dust accumulation.

When in use, connect a stable air source to the two air inlets 101h, rotate the adjusting column 302c-2 to leave a suitable size air outlet or directly close the air outlet, then open the air source, and the gas will push 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 straight pipe 101b. The gas then enters the elbow 301 through the vent 101c. The bottom of the elbow 301 forms a seal with the top of the folded tube 302a and the two are movably connected. Then the gas enters the inside of the folded tube 302a from the elbow 301. At this time, the pressure plate 302d-3 The movable plate 302d-5 and the movable plate 302d-5 are in a constrained sealed state, and they are supported by the crossbar 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. and the movable plate 302d-5 moves 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 plate 302d-5 is pushed outward by the push rod 302d-2, and the movable plate 302d -5 is bounced by the return spring 302d-35, and the round hole 302d-31 is exposed, and then the compressed gas advances along the round hole 302d-31 through the air nozzle 302a-2 toward the nozzle 302b, and is finally ejected from the hole in the nozzle 302b. At this time, the pressure in the air storage chamber 302a-1 has been relieved, and the pressure plate 302d-3 is pushed up in the opposite direction by the high-pressure spring 302d-4. The movable plate 302d-5 first contacts the crossbar 302d-1, and then the pressure plate 302d-3 follows. On the top, the two are again limited by the barb 302d-33 and the J-shaped rod 302d-51 to form a seal under the obstruction of the cross bar 302d-1. The return spring 302d-35 is compressed in the process and waits for the next cycle. During the gas circulation process, the driven gear 202 is continuously selected, and the two jet assemblies 302 perform periodic sweeps with gradual rotational speed changes. During the above process, rotating the adjusting column 302c-2 to control the size of the vent can adjust the effect of slowing down the accumulation of gas in the gas storage chamber 302a-1, thereby controlling the gas injection interval.

In summary, this design can increase the scope of boiler soot blowing, improve work efficiency, and at the same time adjust the soot blowing frequency.

It is important to note that the construction and arrangements of the present application shown in various exemplary embodiments are illustrative only. Although only a few embodiments are described in detail in this disclosure, those reviewing this disclosure will readily appreciate that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application. are possible (e.g. variations in size, scale, structure, shape and proportion of various elements, as well as parameter values (e.g. temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be constructed from multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this 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 described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operation and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the invention is not limited to particular embodiments, but extends to various modifications which still fall within the scope of the appended claims.

Furthermore, in order to provide a concise description of the exemplary embodiments, not all features of an actual implementation may be described (i.e., those features that are not relevant to the best mode presently contemplated for carrying out the invention, or that are not relevant to carrying out the invention) feature).

It is understood that numerous implementation-specific decisions may be made during the development of any actual implementation, as in any engineering or design project. Such a development effort might be complex and time consuming, but would be a routine undertaking of design, manufacture and production without undue experimentation to those of ordinary skill having the benefit of this disclosure .

It should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. 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 solution of the present invention can be carried out. Modifications or equivalent substitutions without departing from the spirit and scope of the technical solution of the present invention shall be included in the scope of the claims of the present invention.

Claims

A boiler soot blowing device, characterized by: including,

The housing unit (100) includes 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 at the middle section of the support shell (101);

The transmission unit (200) includes an impeller (201) and a plurality of driven gears (202) arranged around the bottom of the impeller (201);

The transfer unit (300) includes a plurality of elbows (301) provided in the middle section of the support shell (101) and a plurality of jet assemblies (302) provided at the bottom of the support shell (101).
The boiler soot blowing device according to claim 1, characterized in that:

The support shell (101) includes an impeller shell (101a), a straight pipe (101b) disposed through the bottom of the impeller shell (101a), and a plurality of vents (101c) disposed around 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), and a plurality of columns (101e) provided at the bottom of the column (101e) The support plate (101f), and the connecting ring (101g) provided at the bottom of the support plate (101f).
The boiler sootblowing device according to claim 1 or 2, characterized in that:

The support shell (101) also includes a plurality of air inlets (101h) disposed through its outer side.
The boiler soot blowing device according to claim 3, characterized in that:

The jet assembly (302) includes a folded tube (302a), a nozzle (302b) provided at the bottom of the folded tube (302a), and an adjustment component (302c) provided on one side of the folded tube (302a). , and a stacking component (302d) provided inside the folded tube (302a).
The boiler sootblowing device according to claim 4, characterized in that:

The folded tube (302a) is in a bent shape; the folded tube (302a) includes an air storage chamber (302a-1) provided through the bottom, and an air storage chamber (302a-1) provided through the air storage chamber (302a-1). The air nozzle (302a-2) at the bottom, and a plurality of guide rails (302a-3) provided inside the air storage chamber (302a-1).
The boiler soot blowing device according to claim 5, characterized in that:

The nozzle head (302b) includes an air hole (302b-1) provided through the bottom of the nozzle head (302b), and a plurality of auxiliary holes (302b-2) provided around the air hole (302b-1).
The boiler soot blowing device according to claim 6, characterized in that:

The adjustment component (302c) includes a ventilation seat (302c-1) disposed through the top of the air storage chamber (302a-1), and an adjustment column (302c-1) disposed inside the ventilation seat (302c-1). 2).
The boiler soot blowing device according to claim 7, characterized in that:

The backlog component (302d) includes a cross bar (302d-1) provided inside the air storage chamber (302a-1), and a pair of push rods (302d-) provided on the top of the air nozzle (302a-2). 2), the pressure plate (302d-3) provided inside the gas storage chamber (302a-1), the high-pressure spring (302d-4) provided at the bottom of the pressure plate (302d-3), the The movable plate (302d-5) in the middle of the pressure plate (302d-3);

The pressure plate (302d-3) includes a circular hole (302d-31) provided in its center, a pair of square holes (302d-32) provided on both sides of the circular hole (302d-31), The barbs (302d-33) inside the square hole (302d-32), a pair of limiting posts (302d-34) provided on the other two sides of the round hole (302d-31), and the The return spring (302d-35) of the column (302d-34);

The movable plate (302d-5) includes a pair of J-shaped rods (302d-51) disposed at its bottom.
The boiler soot blowing device according to any one of claims 1, 2, 4, 5, 6, 7 or 8, characterized in that:

The impeller (201) includes a transmission shaft (201a) provided at the bottom of the impeller (201), and a driving gear (201b) provided at the bottom of the transmission shaft (201a).
The boiler soot blowing device according to any one of claims 1, 2, 4, 5, 6, 7 or 8, characterized in that:

The curved pipe (301) is fixedly connected to the supporting shell (101); the curved pipe (301) is movably connected to the jet assembly (302); and the driven gear (202) is fixedly connected to the jet assembly (302).