Sound wave soot blower for boiler

Abstract

The invention discloses a sound wave soot blower for a boiler, and relates to the technical field of sound wave soot cleaning, the sound wave soot blower comprises a mounting frame and at least one soot blowing unit, the mounting frame is movably connected with a sliding frame along a circular path; the soot blowing unit is vertically arranged on the sliding frame in a sliding mode. A reciprocating lead screw is arranged on the sliding frame, a lead screw body of the reciprocating lead screw is rotationally connected to the sliding frame, and a sliding block of the reciprocating lead screw is fixedly connected with the soot blowing unit; a gear ring is fixedly connected to the mounting frame, one end of a lead screw of the reciprocating lead screw is coaxially and fixedly connected with a gear, and the gear is meshed with the gear ring. According to the technical scheme, the sound wave guide pipes are located at all positions of the surface of the boiler to conduct uniform sound wave soot blowing treatment on the heating surface area of the boiler, the situation that the sound wave intensity of part of the heating surface area of the boiler is weak is avoided, and therefore the uniformity of the cleanliness of the heating surface of the boiler is improved, and the heat efficiency of the boiler is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sonic wave soot cleaning, in particular to a sonic wave soot blowing device for a boiler. Background Art

[0002] Boilers play an indispensable role in the electric power, chemical, steel, papermaking and other industries. During the use of the boiler, a sound wave generator is usually used to generate high-intensity sound waves. After the sound waves generated by the sound wave generator enter the ash accumulation area of ​​the boiler, they will cause the material particles in the ash layer to vibrate. Under the continuous action of the sound waves, the vibration amplitude of the particles in the ash layer will gradually increase, destroying the binding force between the particles, so that the ash layer will gradually peel off and fall off under the synergistic effect of gravity and wind force, thereby clearing the ash on the heating surface of the boiler, keeping the heating surface clean, and thus improving the thermal efficiency of the boiler.

[0003] The patent with announcement number CN218442339U discloses a sonic soot blower for a boiler, which includes a mounting plate, the inner walls of two first chutes are respectively slidably connected to the outer surfaces of two first sliders, the left sides of the two first sliders are fixedly connected to the right side of the same movable plate, the upper surface of the inner wall of the movable plate and the lower surface of the inner wall are both provided with second chutes, the inner walls of the two second chutes are respectively slidably connected to the outer surfaces of the two second sliders, and the opposite surfaces of the two second sliders are respectively fixedly connected to the upper surface and the lower surface of the filter screen. By setting the movable plate, the mounting plate, the scraper and the filter screen, it is convenient to clean the filter screen in the sonic soot blower, thereby improving the soot cleaning efficiency of the sonic soot blower.

[0004] In the prior art such as the above-mentioned patent, when using a sonic soot blower to clean the heating surface of the boiler, the horn of the sonic soot blower is usually fixedly installed on one side of the boiler, and the sound waves are mainly propagated along the opening direction of the horn. The sound wave intensity is stronger in the heating surface area close to the horn, and the sound wave intensity is weaker in the heating surface area far from the horn, which leads to uneven cleanliness of the heating surface of the boiler, thereby affecting the thermal efficiency of the boiler. Summary of the invention

[0005] The object of the present invention is to provide an acoustic sootblowing device for a boiler to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sonic sootblowing device for a boiler, comprising a mounting frame and at least one sootblowing unit, wherein a sliding frame is connected to the mounting frame for movement along a circular path; the sootblowing unit is vertically slidably arranged on the sliding frame; a reciprocating screw is arranged on the sliding frame, the screw rod of the reciprocating screw is rotatably connected to the sliding frame, and the slider of the reciprocating screw is fixedly connected to the sootblowing unit; a gear ring is fixedly connected to the mounting frame, one end of the screw rod of the reciprocating screw is coaxially fixedly connected to a gear, and the gear is meshed with the gear ring; a driving member is arranged on the sliding frame, and the driving member is used to drive the screw rod of the reciprocating screw to rotate.

[0007] Furthermore, the sootblowing unit includes: a sootblowing frame, which is vertically slidably connected to the sliding frame, and the sootblowing frame is fixedly connected to the slider of the reciprocating screw; a sound wave generator, which is fixedly connected to the sootblowing frame; and a sound waveguide, which is fixedly connected to the sootblowing frame, and one end of the sound waveguide is connected to the sound wave generator.

[0008] Furthermore, annular grooves are provided on the inner bottom wall and the inner top wall of the mounting frame, and sliding rings are rotatably connected to both ends of the sliding frame, and the sliding frame is slidably connected to the annular grooves through the sliding rings.

[0009] Furthermore, the driving member includes a driving motor, the driving motor is fixedly connected to the top of the sliding frame, and the output end of the driving motor passes through the side wall of the sliding frame and is fixedly connected to the lead screw of the reciprocating screw.

[0010] Furthermore, a cross clamp ring is fixedly connected to the inner wall of the sootblowing rack, and the cross clamp ring is fixedly connected to the outer wall of the acoustic waveguide.

[0011] Furthermore, a fixing ring is fixedly connected to the inner wall of the acoustic waveguide tube, an air valve is slidably connected to the center of the fixing ring, and an elastic member is fixedly connected between the air valve and the fixing ring.

[0012] Furthermore, the sound waveguide is connected to the sound wave generator via a swivel, one end of the swivel is sealed and rotatably connected to the sound waveguide, and the other end is sealed and rotatably connected to the sound wave generator, the outer wall of the swivel is provided with outer arc-shaped teeth, the inner wall of the sliding frame is fixedly connected with a rack, the swivel is meshed with the rack via the outer arc-shaped teeth, and two scraping strips are fixedly connected to the inner wall of the swivel, and the two scraping strips are attached to the inner wall of the sound waveguide.

[0013] In the above technical scheme, the present invention provides an acoustic sootblowing device for a boiler, which drives a reciprocating screw to rotate by controlling a driving motor, and the reciprocating screw drives multiple sootblowing racks to reciprocate up and down, and the multiple sootblowing racks drive multiple acoustic waveguides to reciprocate up and down, and the multiple acoustic waveguides perform uniform acoustic sootblowing treatment on different height positions of the boiler. At the same time, the reciprocating screw drives the gear to rotate, and under the meshing action of the gear and the gear ring, the sliding frame makes a uniform circular motion along the annular groove, and the sliding frame drives the multiple sootblowing units to rotate around the outer wall of the boiler, so that the multiple acoustic waveguides rotate circumferentially along the outer wall of the boiler at a uniform speed. The multiple acoustic waveguides are located at various positions on the surface of the boiler to perform uniform acoustic sootblowing treatment on the heating surface area of ​​the boiler, thereby avoiding weak acoustic wave intensity in some heating surface areas of the boiler, thereby improving the uniformity of cleanliness of the heating surface of the boiler, and further improving the thermal efficiency of the boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a sliding frame provided by an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a reciprocating screw provided in an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a scraper provided by an embodiment of the present invention; Figure 5 A schematic diagram of the structure of a ball provided in an embodiment of the present invention; Figure 6 A schematic structural diagram of a spiral guide surface provided in an embodiment of the present invention.

[0016] Description of reference numerals: 1. Mounting frame; 2. Annular groove; 3. Sliding frame; 31. Sliding ring; 4. Reciprocating screw; 51. Sootblowing frame; 52. Sound wave generator; 53. Sound waveguide; 6. Gear; 61. Gear ring; 7. Fixed ring; 71. Air valve; 7101. Connecting ring; 7102. Extrusion block; 7103. Spiral guide surface; 72. Elastic member; 8. Rotating ring; 81. Outer arc teeth; 82. Rack; 83. Scraper strip; 8301. Ball; 9. Driving motor; 10. Cross clamping ring. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0018] Embodiment 1 See also Figure 1-6 An acoustic sootblowing device for a boiler provided by an embodiment of the present invention comprises a mounting frame 1 and at least one sootblowing unit, wherein a sliding frame 3 is connected to the mounting frame 1 for movement along a circular path; the sootblowing unit is vertically slidably arranged on the sliding frame 3; a reciprocating screw 4 is arranged on the sliding frame 3, the screw rod of the reciprocating screw 4 is rotatably connected to the sliding frame 3, and the slider of the reciprocating screw 4 is fixedly connected to the sootblowing unit; a gear ring 61 is fixedly connected to the mounting frame 1, and one end of the screw rod of the reciprocating screw 4 is coaxially fixedly connected to a gear 6, and the gear 6 is meshed with the gear ring 61; a driving member is arranged on the sliding frame 3, and the driving member is used to drive the screw rod of the reciprocating screw 4 to rotate.

[0019] like Figure 3 As shown, the sootblowing unit includes: a sootblowing frame 51, which is vertically slidably connected to the sliding frame 3, and the sootblowing frame 51 is fixedly connected to the slider of the reciprocating screw 4; a sound wave generator 52, which is fixedly connected to the sootblowing frame 51; a sound waveguide 53, which is fixedly connected to the sootblowing frame 51, and one end of the sound waveguide 53 is connected to the sound wave generator 52. By setting the sound waveguide 53, the sound waves generated by the sound wave generator 52 are transmitted to the inside of the boiler through the sound waveguide 53, and the opening setting of the sound waveguide 53 increases the coverage of the sound waves, thereby improving the soot cleaning effect.

[0020] like Figure 2 As shown, annular grooves 2 are provided on the inner bottom wall and the inner top wall of the mounting frame 1, and sliding rings 31 are rotatably connected to both ends of the sliding frame 3. The sliding frame 3 is slidably connected to the annular groove 2 through the sliding rings 31. By setting the annular groove 2, under the limiting action of the annular groove 2, the sliding frame 3 slides along the annular groove 2 through the two sliding rings 31, so that the sliding frame 3 maintains a circular path movement.

[0021] like Figure 2 As shown, the driving member includes a driving motor 9, which is fixedly connected to the top of the sliding frame 3. The output end of the driving motor 9 passes through the side wall of the sliding frame 3 and is fixedly connected to the lead screw of the reciprocating screw 4. By setting the driving motor 9 and starting the driving motor 9, the driving motor 9 drives the lead screw of the reciprocating screw 4 to rotate on the sliding frame 3 through the output end.

[0022] like Figure 3As shown, a cross clamp 10 is fixedly connected to the inner wall of the sootblowing frame 51, and the cross clamp 10 is fixedly connected to the outer wall of the sound waveguide 53. By setting the cross clamp 10, the sound waveguide 53 is supported and limited. During the up and down reciprocating motion of the sound waveguide 53, the sound waveguide 53 is prevented from shaking relative to the sound wave generator 52, thereby ensuring the stable connection between the sound waveguide 53 and the sound wave generator 52.

[0023] like Figure 6 As shown, a fixing ring 7 is fixedly connected to the inner wall of the sound waveguide 53, and an air valve 71 is slidably connected at the center of the fixing ring 7. An elastic member 72 is fixedly connected between the air valve 71 and the fixing ring 7. In the process of the sound wave generator 52 generating sound waves, under the squeezing effect of air, the airflow pushes the air valve 71 to slide from the center of the fixing ring 7 to the opening of the sound waveguide 53, so that the air valve 71 is in an open state, which facilitates the sound waves to diffuse to the boiler through the air valve 71 and the sound waveguide 53. In the process of the sound wave generator 52 stopping working, under the elastic effect of the elastic member 72 itself, the elastic member 72 pulls the air valve 71 to reset at the center of the fixing ring 7, thereby closing the air valve 71 to prevent dust and impurities from entering the interior of the sound wave generator 52 through the air valve 71, thereby protecting the sound wave generator 52.

[0024] In the above technical scheme, the present invention provides an acoustic wave sootblowing device for a boiler, which generates high-intensity acoustic waves by controlling an acoustic wave generator 52, and the high-intensity acoustic waves diffuse toward the heating surface area of ​​the boiler along the opening of the acoustic waveguide 53. By starting the drive motor 9, the drive motor 9 drives the screw of the reciprocating screw 4 to rotate on the sliding frame 3 through the output end, and the reciprocating screw 4 drives multiple sootblowing frames 51 to reciprocate up and down along the inner wall of the sliding frame 3 through the slider, and the multiple sootblowing frames 51 drive multiple acoustic waveguides 53 to reciprocate up and down along the sliding frame 3, so that the multiple acoustic waveguides 53 perform uniform acoustic wave sootblowing treatment on different height positions of the boiler. At the same time, the reciprocating screw 4 drives the gear 6 to rotate under the sliding frame 3 through the screw rod. Under the meshing action of the gear 6 and the gear ring 61, the sliding frame 3 makes uniform circular motion along the annular groove 2, and the sliding frame 3 drives the multiple sootblowing units inside it to rotate around the outer wall of the boiler. Under the rotation action of the multiple sootblowing units, the multiple sound waveguides 53 rotate circumferentially along the outer wall of the boiler at a uniform speed. The multiple sound waveguides 53 are located at various positions on the surface of the boiler to perform uniform sootblowing treatment on the heating surface area of ​​the boiler, thereby avoiding weak sound wave intensity in some areas of the heating surface of the boiler, thereby improving the uniformity of the cleanliness of the heating surface of the boiler, and then improving the thermal efficiency of the boiler.

[0025] Embodiment 2 See also Figure 1-6Based on the same concept as the first embodiment, the present embodiment further proposes that the acoustic waveguide 53 and the acoustic wave generator 52 are connected through a swivel 8, one end of the swivel 8 is sealed and rotatably connected to the acoustic waveguide 53, and the other end is sealed and rotatably connected to the acoustic wave generator 52, an outer arc-shaped tooth 81 is provided on the outer wall of the swivel 8, a rack 82 is fixedly connected to the inner wall of the sliding frame 3, the swivel 8 is meshed with the rack 82 through the outer arc-shaped tooth 81, two scrapers 83 are fixedly connected to the inner wall of the swivel 8, and the two scrapers 83 are attached to the inner wall of the acoustic waveguide 53. A connecting ring 7101 is fixedly connected to one end of the air valve 71, and an extrusion block 7102 is fixedly connected to the side wall of the connecting ring 7101, and a spiral guide surface 7103 is provided on the side of the extrusion block 7102 close to the fixed ring 7, and one end of the two scrapers 83 is rotatably connected to a ball 8301, and the two balls 8301 are attached to the spiral guide surface 7103.

[0026] In the above technical scheme, the present invention provides an acoustic wave sootblowing device for a boiler. During the process of the acoustic waveguide 53 reciprocating up and down along the sliding frame 3, the acoustic waveguide 53 drives the swivel 8 on the outside thereof to reciprocate up and down. The swivel 8 is meshed and connected with the rack 82 through the outer arc-shaped teeth 81 on the outside thereof. Under the meshing action of the outer arc-shaped teeth 81 and the rack 82, the swivel 8 rotates on the side wall of the acoustic waveguide 53. The swivel 8 drives the two scraping strips 83 on the inside thereof to rotate along the inner wall of the acoustic waveguide 53. The two scraping strips 83 scrape off the dust on the inner wall of the acoustic waveguide 53. Under the diffusion action of air and sound waves, the flowing air drives the acoustic waveguide 5 The dust on the inner wall moves toward the opening of the sound waveguide 53, so that the inner wall of the sound waveguide 53 is kept clean, and the transmission efficiency of the sound wave in the sound waveguide 53 is improved. During the rotation of the two scraping strips 83, the two scraping strips 83 drive the two balls 8301 to rotate. Under the squeezing action of the spiral guide surface 7103, the two balls 8301 drive the squeezing block 7102 to move toward the opening of the sound waveguide 53 through the spiral guide surface 7103. The squeezing block 7102 drives the air valve 71 to move toward the opening of the sound waveguide 53 through the connecting ring 7101, thereby opening the air valve 71 to prevent the air from pushing the air valve 71 to open, thereby reducing the loss of sound wave energy.

[0027] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A sonic sootblowing device for a boiler, comprising a mounting frame (1) and at least one sootblowing unit, characterized in that: The mounting frame (1) is connected to a sliding frame (3) which moves along a circular path; The sootblowing unit is vertically slidably arranged on the sliding frame (3); A reciprocating screw (4) is arranged on the sliding frame (3), a screw rod of the reciprocating screw (4) is rotatably connected to the sliding frame (3), and a slider of the reciprocating screw (4) is fixedly connected to the sootblowing unit; A gear ring (61) is fixedly connected to the mounting frame (1), and a gear (6) is coaxially fixedly connected to one end of the lead screw of the reciprocating lead screw (4), and the gear (6) is meshed with the gear ring (61); The sliding frame (3) is provided with a driving member, and the driving member is used to drive the screw rod of the reciprocating screw rod (4) to rotate.

2. The sonic sootblowing device for a boiler according to claim 1, characterized in that: The sootblowing unit comprises: A soot blowing frame (51) which is vertically slidably connected to the sliding frame (3), and the soot blowing frame (51) is fixedly connected to the slider of the reciprocating screw (4); A sound wave generator (52) fixedly connected to the sootblowing frame (51); A sound waveguide (53) is fixedly connected to the sootblowing frame (51), and one end of the sound waveguide (53) is in communication with the sound wave generator (52).

3. The sonic sootblowing device for a boiler according to claim 1, characterized in that: An annular groove (2) is provided on the inner bottom wall and the inner top wall of the mounting frame (1), and sliding rings (31) are rotatably connected at both ends of the sliding frame (3), and the sliding frame (3) is slidably connected to the annular groove (2) via the sliding rings (31).

4. The sonic sootblowing device for a boiler according to claim 1, characterized in that: The driving member comprises a driving motor (9), wherein the driving motor (9) is fixedly connected to the top of the sliding frame (3), and an output end of the driving motor (9) passes through a side wall of the sliding frame (3) and is fixedly connected to the lead screw of the reciprocating lead screw (4).

5. The sonic sootblowing device for a boiler according to claim 2, characterized in that: A cross clamping ring (10) is fixedly connected to the inner wall of the soot blowing frame (51), and the cross clamping ring (10) is fixedly connected to the outer wall of the acoustic waveguide (53).

6. The sonic sootblowing device for a boiler according to claim 2, characterized in that: A fixing ring (7) is fixedly connected to the inner wall of the acoustic waveguide (53), an air valve (71) is slidably connected to the center of the fixing ring (7), and an elastic member (72) is fixedly connected between the air valve (71) and the fixing ring (7).

7. The sonic sootblowing device for a boiler according to claim 2, characterized in that: The sound waveguide (53) and the sound wave generator (52) are connected via a rotating ring (8); one end of the rotating ring (8) is connected to the sound waveguide (53) in a sealed and rotatable manner, and the other end is connected to the sound wave generator (52) in a sealed and rotatable manner; an outer arc-shaped tooth (81) is provided on the outer wall of the rotating ring (8); a rack (82) is fixedly connected to the inner wall of the sliding frame (3); the rotating ring (8) meshes with the rack (82) via the outer arc-shaped tooth (81); two scraping strips (83) are fixedly connected to the inner wall of the rotating ring (8); the two scraping strips (83) are attached to the inner wall of the sound waveguide (53).

Images