Efficient soot blower applied to boiler

Abstract

The utility model relates to the technical field of boilers, and discloses an efficient soot blower applied to a boiler. The sliding rail component is arranged, and the driving component is used for driving the base table on the sliding rail component to move, so that the base table can gradually go deep into the deep position of the inner cavity of the hearth, and all-directional cleaning and soot blowing of the inner cavity of the hearth are facilitated. A rotating ring is arranged on the base table, and a high-pressure spray head is fixed to the rotating ring, so that in the process that the rotating ring is driven by a first motor and is limited by a limiting groove to rotate in situ, the high-pressure spray head can conduct air injection and soot blowing on an inner cavity of a hearth from multiple angles, and the high-pressure spray head moves along with rotation of the rotating ring; the high-pressure nozzle can be close to each soot blowing point, and the phenomenon that the soot blowing effect of the high-pressure air gun is greatly reduced due to the fact that the distance is long is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of boilers, and in particular to a high-efficiency sootblowing device applied to boilers. Background Art

[0002] Power station boilers and most industrial boilers are basically coal-fired. The coal used in boilers is generally of poor quality and is prone to coking, ash accumulation and corrosion on the heating surface during combustion. These problems often occur in the furnace and superheater. When the boiler is coked and ash is accumulated, the boiler evaporation rate will be reduced, and the exhaust temperature and flue gas resistance will increase. Not only will the combustion conditions deteriorate and the thermal efficiency of the boiler be reduced, but it will also cause local water circulation failures and even cause part of the tube wall to overheat and burn out, forcing the boiler to shut down. Therefore, it is necessary to regularly blow soot inside the furnace.

[0003] The sootblowing equipment in the prior art mainly consists of a frame, a telescopic gun barrel, a running car, a rack track, a wall box and other parts. When working, the running car drives the gun barrel to rotate and extend into the boiler, and the nozzle at the front end of the gun barrel continuously sprays high-pressure gas to blow soot on the heating surface of the boiler. After the sootblowing is completed, the running car pulls the gun barrel out of the furnace. The prior art does not take into account the inner diameter of the furnace. When the gun barrel enters the furnace, it is at the central axis of the furnace. Therefore, the gun barrel is at a certain distance from the side wall of the furnace, which greatly reduces the effect of the high-pressure gas during the sootblowing process, thereby affecting the sootblowing efficiency. Utility Model Content

[0004] In view of the above problems, an embodiment of the present application provides a high-efficiency sootblowing device applied to a boiler, which can effectively improve the efficiency of the sootblowing device in blowing soot into the inner chamber of the boiler.

[0005] According to one aspect of the embodiment of the present application, a high-efficiency sootblowing device applied to a boiler is provided. The high-efficiency sootblowing device applied to a boiler includes a slide rail component for extending into the furnace of the boiler, a base is provided on the slide rail component, a driving component for driving the base to move along the axial direction of the slide rail is provided between the base and the slide rail component, a semicircular arc-shaped limit groove is provided on the top of the base, a rotating ring is rotatably provided in the limit groove, an inner tooth is formed on the inner side of the rotating ring, the axis of the central axis of the rotating ring is parallel to the straight line of the axial direction of the slide rail component, a high-pressure nozzle is fixed to the outer wall of the rotating ring through a fixing member, the high-pressure nozzle is connected to a high-pressure air supply pipe, a first motor is provided on the base, and the output end of the first motor is coaxially connected to a first gear, and the first gear is meshed with the rotating ring.

[0006] In some embodiments, a spherical groove is provided on the inner bottom wall of the limiting groove, a ball is provided in the spherical groove, and the top of the ball protrudes to the top of the limiting groove.

[0007] In some embodiments, a limiting component for limiting the rotating ring is provided on the base, and the limiting component includes two limiting plates arranged at both ends of the top of the rotating ring, and the interval between the two limiting plates matches the thickness of the rotating ring, and the two limiting plates are respectively fixed to the base through support rods.

[0008] In some embodiments, a second gear is rotatably connected between the two limiting plates, and the second gear is meshed with a top side of the rotating ring.

[0009] In some embodiments, a plurality of sheet pressing clamps are included, and the sheet pressing clamps are respectively arranged on the top of the base and the limit plate. The sheet pressing clamps are used to clamp the high-pressure air supply pipe, and one end of the high-pressure air supply pipe close to the high-pressure nozzle extends from the outer side of the rotating ring to the high-pressure nozzle.

[0010] In some embodiments, a sliding groove is formed at the top of the slide rail component for horizontal movement of the base, and tooth plates are respectively provided on the inner walls on both sides of the sliding groove. The driving component includes a second motor arranged on the top of the base, and a receiving groove is opened on the side of the base. The output shaft of the second motor extends to the receiving groove and is transmission-connected to a third gear. The third gear protrudes out of the receiving groove and meshes with the tooth plate.

[0011] The beneficial effect of the present application is: in the present application, by setting a slide rail component and using a driving component to drive the base on the slide rail component to move, the base can gradually penetrate into the depth of the furnace cavity, which is convenient for all-round cleaning and soot blowing of the furnace cavity. A rotating ring is set on the base, and the high-pressure nozzle is fixed on the rotating ring, so that when the rotating ring is driven by the first motor and rotates in situ under the restriction of the limit groove, the high-pressure nozzle can spray and soot to the furnace cavity from multiple angles, and the high-pressure nozzle moves with the rotation of the rotating ring, so that the high-pressure nozzle can be close to each soot blowing point, avoiding the phenomenon that the soot blowing effect of the high-pressure air gun is greatly reduced due to the long distance.

[0012] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the overall side cross-sectional structure of a high-efficiency sootblowing device applied to a boiler provided in an embodiment of the present application;

[0015] Figure 2 This is a schematic diagram of the overall front view semi-cast structure of a high-efficiency sootblowing device applied to a boiler provided in an embodiment of the present application;

[0016] Figure 3 Schematic diagram of the local structure at the base.

[0017] The reference numerals in the specific implementation manner are as follows:

[0018] A high-efficiency sootblowing device 100 for a boiler, a slide rail component 110, a sliding groove 111, a tooth plate 111a, a base 120, a limiting groove 121, a spherical groove 122, a ball 123, a receiving groove 124, a driving component 130, a second motor 131, a third gear 132, a rotating ring 140, an internal tooth 141, a high-pressure nozzle 142, a high-pressure air supply pipe 143, a first motor 144, a first gear 145, a limiting component 146, a limiting plate 146a, a support rod 146b, a second gear 146c, and a pressing plate clamp 150. DETAILED DESCRIPTION

[0019] The following will describe in detail the embodiments of the technical solution of the present application in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only used as examples and cannot be used to limit the scope of protection of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present application; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" in the specification and claims of the present application and the above-mentioned description of the drawings and any variations thereof are intended to cover non-exclusive inclusions.

[0020] Specifically, please refer to Figures 1 to 3 . Figure 1 This is a schematic diagram of the overall side cross-sectional structure of a high-efficiency sootblowing device applied to a boiler provided in an embodiment of the present application. Figure 2 This is a schematic diagram of the overall front view of a high-efficiency sootblowing device for a boiler provided in an embodiment of the present application. Figure 3It is a schematic diagram of the local structure at the base. The high-efficiency sootblowing device 100 applied to the boiler includes a slide rail component 110 for extending into the furnace of the boiler, and a base 120 is arranged on the slide rail component 110. The base 120 is used to set up and support components such as a rotating ring 140. A driving component 130 for driving the base 120 to move along the axial direction of the slide rail is arranged between the base 120 and the slide rail component 110. Under the drive of the driving component 130, the base 120 can gradually extend into the furnace of the boiler, thereby completing the all-round sootblowing treatment inside the boiler furnace. A semicircular arc-shaped limiting groove 121 is opened on the top of the base 120, and a rotating ring 140 can be rotatably arranged in the limiting groove 121. The limiting groove 121 matches the rotating ring 140. The groove depth of the limiting groove 121 can be used according to actual conditions, so that the limiting groove 121 has a certain limiting effect on the rotating ring 140 to prevent the rotating ring 140 from tilting during the rotation process. An inner tooth 141 is formed on the inner side of the rotating ring 140. The axis of the central axis of the rotating ring 140 is parallel to the straight line of the axial direction of the slide rail component. A high-pressure nozzle 142 is fixed to the outer wall of the rotating ring 140 through a fixing part. The high-pressure nozzle 142 is connected to a high-pressure air supply pipe 143. The high-pressure air supply pipe 143 can transport high-pressure gas to the high-pressure nozzle 142, and spray it out through the high-pressure nozzle 142 to the inner wall of the boiler furnace to complete soot blowing. A first motor 144 is provided on the base 120, and a first gear 145 is coaxially connected to the output end of the first motor 144, and the first gear 145 is meshed with the rotating ring 140. The first motor 144 can drive the rotating ring 140 to rotate through the first gear 145 during the rotation process. During the rotation process, the outer wall of the rotating ring 140 and the inner bottom wall of the limiting groove 121 slide and rub. In order to avoid excessive sliding friction, lubricating oil can be sprayed in the limiting groove 121 so that the relative position of the rotating ring 140 to the base 120 does not change during the rotation process. The first motor 144 rotates no more than two-thirds of a circle each time, and the forward and reverse rotations are performed alternately. During the rotation of the rotating ring 140, the high-pressure nozzle 142 sprays and blows soot to the inner cavity of the furnace, and in the process of sending the base 120 into the inner cavity of the furnace with the driving component 130, the inner cavity of the furnace is cleaned and blown in all directions.

[0021] As can be seen from the above, in the embodiment of the present application, the slide rail component 110 is provided and the driving component 130 is used to drive the base 120 on the slide rail component 110 to move, so that the base 120 can gradually penetrate into the depth of the furnace cavity, which is convenient for cleaning and blowing the furnace cavity in all directions. A rotating ring 140 is provided on the base 120, and the high-pressure nozzle 142 is fixed on the rotating ring 140, so that when the rotating ring 140 is driven by the first motor 144 and rotates in place under the restriction of the limit groove 121, the high-pressure nozzle 142 can spray and blow the furnace cavity from multiple angles, and the high-pressure nozzle 142 moves with the rotation of the rotating ring 140, so that the high-pressure nozzle 142 can be close to each blowing point, avoiding the phenomenon that the high-pressure air gun blowing effect is greatly reduced due to the long distance.

[0022] In some embodiments, a spherical groove 122 is provided on the inner bottom wall of the limiting groove 121, and a ball 123 is provided in the spherical groove 122, and the top of the ball 123 protrudes to the top of the limiting groove 121. In the embodiment of the present application, through the above arrangement, the friction between the inner wall of the limiting groove 121 and the outer wall of the rotating ring 140 is further reduced, and the sliding friction is changed into rolling friction, thereby avoiding the friction force applied by the inner wall of the limiting groove 121 to the rotating ring 140 to drive the rotating ring 140 to rotate out of the limiting groove 121.

[0023] In some embodiments, a limiting component 146 for limiting the rotating ring 140 is provided on the base 120, and the limiting component 146 includes two limiting plates 146a provided at both ends of the top of the rotating ring 140, and the interval between the two limiting plates 146a matches the thickness of the rotating ring 140, and the two limiting plates 146a are respectively fixed to the base 120 through support rods 146b. In the embodiment of the present application, the two ends of the rotating ring 140 are limited by the above-mentioned limiting plates 146a, so as to further ensure the stability of the rotating ring 140 during the operation.

[0024] In some embodiments, a second gear 146c is rotatably connected between the two limit plates 146a, and the second gear 146c is engaged with one side of the top of the rotating ring 140. In the embodiment of the present application, through the above arrangement, the second gear 146c rotates with the rotating ring 140 and is supported at the bottom of the rotating ring 140, further improving the stability of the rotating ring 140 during rotation.

[0025] In some embodiments, a plurality of pressing sheet clips 150 are included, and the pressing sheet clips 150 are respectively arranged on the top of the base 120 and the limiting plate 146a, and the pressing sheet clips 150 are used to clamp the high-pressure air supply pipe 143, and one end of the high-pressure air supply pipe 143 close to the high-pressure nozzle 142 extends from the outside of the rotating ring 140 to the high-pressure nozzle 142. In the embodiment of the present application, by setting the pressing sheet clip 150, the pressing sheet clip 150 is a prior art, and the pressing sheet clip 150 permanently fixes the part of the high-pressure air supply pipe 143 close to the high-pressure nozzle 142, leaving only a necessary length of the high-pressure air supply pipe 143 in a free state, thereby avoiding the high-pressure air supply pipe 143 from being entangled during the rotation of the high-pressure nozzle 142.

[0026] In some embodiments, the top of the slide rail component 110 forms a sliding groove 111 for the base 120 to move horizontally, and tooth plates 111a are respectively arranged on the inner side walls of both sides of the sliding groove 111. The driving component 130 includes a second motor 131 arranged on the top of the base 120, and a receiving groove 124 is opened on the side of the base 120. The output shaft of the second motor 131 extends to the receiving groove 124 and is connected to the third gear 132 after being driven. The third gear 132 protrudes from the receiving groove 124 and meshes with the tooth plate 111a. In the embodiment of the present application, through the above arrangement, when the second motor 131 rotates, it will drive the third gear 132 to rotate, so that the third gear 132 and the tooth plate 111a cooperate with each other, and the base 120 is driven under the reaction force of the tooth plate 111a.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A high-efficiency sootblowing device for a boiler, characterized in that: The invention comprises a slide rail component for extending into the furnace of the boiler, a base is arranged on the slide rail component, a driving component for driving the base to move along the axial direction of the slide rail is arranged between the base and the slide rail component, a semicircular arc-shaped limiting groove is opened on the top of the base, a rotating ring is rotatably arranged in the limiting groove, an inner side of the rotating ring is formed with inner teeth, and an axis where the central axis of the rotating ring is located is parallel to a straight line where the axial direction of the slide rail component is located; A high-pressure nozzle is fixed to the outer wall of the rotating ring through a fixing member, and the high-pressure nozzle is connected to a high-pressure air supply pipe. A first motor is arranged on the base, and an output end of the first motor is coaxially connected to a first gear, and the first gear is meshed with the rotating ring.

2. The high-efficiency sootblowing device for boiler according to claim 1, characterized in that: A spherical groove is arranged on the inner bottom wall of the limiting groove, a ball is arranged in the spherical groove, and the top of the ball protrudes to the top of the limiting groove.

3. The high-efficiency sootblowing device for boiler according to claim 1, characterized in that: A limiting component for limiting the rotating ring is arranged on the base, and the limiting component includes two limiting plates arranged at both ends of the top of the rotating ring, the interval between the two limiting plates matches the thickness of the rotating ring, and the two limiting plates are fixed to the base through support rods respectively.

4. The high-efficiency sootblowing device for boiler according to claim 3, characterized in that: A second gear is rotatably connected between the two limit plates, and the second gear is meshed with one side of the top of the rotating ring.

5. The high-efficiency sootblowing device for boiler according to claim 4, characterized in that: It includes a plurality of pressing plate clamps, which are respectively arranged on the top of the base and the limiting plate. The pressing plate clamps are used to clamp the high-pressure air supply pipe, and one end of the high-pressure air supply pipe close to the high-pressure nozzle extends from the outer side of the rotating ring to the high-pressure nozzle.

6. The high-efficiency sootblowing device for boiler according to claim 1, characterized in that: A sliding groove for horizontal movement of the base is formed at the top of the slide rail component, and tooth plates are respectively arranged on the inner side walls on both sides of the sliding groove. The driving component includes a second motor arranged on the top of the base, and a receiving groove is opened on the side of the base. The output shaft of the second motor extends to the receiving groove and is transmission-connected to a third gear. The third gear protrudes out of the receiving groove and meshes with the tooth plate.

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