Sound wave soot blower for boiler and soot removing method

Abstract

The invention discloses a sound wave soot blower for a boiler and a soot removing method, and belongs to the field of boiler equipment. According to the technical scheme, the device comprises a steam inlet valve, a telescopic ash removal component and a driving limiting component, the driving limiting component is arranged on the inner wall of a boiler hearth in a clamped mode, the position of the device can be adjusted through a walking component arranged in the device according to the actual use condition, and therefore ash removal is conducted on the dead angle position of the inner wall of the boiler; the overall ash removal efficiency is effectively improved; in addition, the device adopts a non-contact ash removal method, so that the heating surface of the boiler cannot be abraded, and the service life of the whole equipment is prolonged.

Description

Technical Field

[0001] The invention relates to the field of boiler equipment, and in particular to a sonic soot blower for a boiler and a soot removal method. Background Art

[0002] During the operation of the boiler, the flue gas and dust generated by combustion will be deposited on the heating surface of the boiler to form ash accumulation. Ash accumulation not only reduces the thermal efficiency of the boiler, but may also cause problems such as overheating and corrosion of the heating surface, seriously affecting the safe operation of the boiler. Traditional ash removal methods include mechanical scraping, steam soot blowing, etc., but these methods have disadvantages such as low efficiency, high energy consumption, and large wear and tear on equipment. In recent years, sonic soot blowing technology has gradually attracted attention. It uses the energy of sound waves to loosen and fall off the accumulated ash, and has the advantages of non-contact, no wear, and low energy consumption. However, the existing sonic soot blowers still have shortcomings in terms of sound wave frequency, sound pressure level, sound field distribution, etc., which affects the ash removal effect. Summary of the invention

[0003] The invention aims at the problems existing in the prior art and provides a sonic soot blower for a boiler and a soot removal method.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A sonic soot blower for a boiler and an ash removal method, comprising a steam inlet valve, a telescopic soot cleaning component and a drive limit component, wherein the drive limit component is snap-fitted and arranged at an inner wall position of a boiler furnace, and is characterized in that a matching rack is provided at an outer end position of the drive limit component, a walking component is snap-fitted and arranged at an outer side position of the telescopic soot cleaning component, the walking component is meshed and cooperated with the matching rack to realize the up and down reciprocating motion of the telescopic soot cleaning component, and the base position of the telescopic soot cleaning component is matched and connected with the steam inlet valve.

[0006] Preferably, the telescopic cleaning component internally includes a driving motor, a reducer, a sound wave generator, a sound wave output pipe and a matching bracket, the matching bracket is engaged with the steam inlet valve, the sound wave generator is matched with the lower side of the matching bracket, the sound wave generator is matched with the sound wave output pipe at the lower end, and the driving motor and the reducer are matched with the outer side of the sound wave generator, and the output end of the driving motor is matched with the reducer.

[0007] Preferably, a snap-fitting groove is provided on the side of the telescopic cleaning component, a walking component is snap-fitted inside the groove, and the walking component is vertically matched with the telescopic cleaning component.

[0008] Preferably, a sealing ring is provided at the connection between the sound wave generator and the matching bracket.

[0009] Preferably, the steam inlet valve comprises a telescopic rod, a main valve body, a height adjustment spring, a position correction buckle and an air inlet pipe. The telescopic rod is arranged at the outer side of the steam inlet valve, and the telescopic rod is installed in cooperation with a matching bracket. A position correction buckle is arranged on the outer side of the telescopic rod, and a main valve body is arranged at the lower part of the telescopic rod. The boiler steam is processed inside the main valve body, and a height adjustment spring is arranged at the upper end of the main valve body, and an air inlet pipe is arranged at the lower part of the main valve body.

[0010] Preferably, a heat-insulating layer is provided on the outer wall of the air inlet pipe.

[0011] Preferably, the drive limiting component includes a self-locking buckle, a crawling drive motor and an upper mounting bar. The upper mounting bar is cooperatively arranged at the upper position of the drive limiting component, the right end of the upper mounting bar is cooperatively arranged with a self-locking buckle, the lower position of the upper mounting bar is engaged with a crawling drive motor, and the lower part of the crawling drive motor is cooperatively arranged with the walking component.

[0012] Preferably, a driving upper support plate and a positioning slot are provided at the contact position between the walking component and the mating rack, a mating gear is provided at the inner side of the driving upper support plate, the mating gear is meshed with the mating rack, a sealing pin is provided at the position between the driving upper support plate and the positioning slot, and a high-temperature resistant coating is provided at the external position of the walking component, and the high-temperature resistant coating covers the outer wall position of the walking component.

[0013] Preferably, the interior of the sound wave output tube includes an upper mating shaft, a sound wave output inner cavity, a limiting clip and a sound wave vibration ball. The upper mating shaft is matingly connected to the output end of the driving motor, the outer end of the upper mating shaft is provided with a sound wave output inner cavity, three symmetrically distributed limiting clips are provided at the lower position of the upper mating shaft, and a sound wave vibration ball is provided on the inner side of the limiting clip.

[0014] Preferably, the upper mating shaft and the sound wave output cavity are in clearance fit.

[0015] Preferably, the ash removal method of the boiler sonic soot blower is as follows: according to the ash accumulation on the boiler heating surface, the relative positions of the walking parts and the matching racks are adjusted; then the sonic generator is started, and the frequency and sound pressure level of the sonic generator are adjusted according to the ash accumulation on the boiler heating surface; the sound waves are transmitted to the sonic output pipe to loosen and fall off the accumulated ash.

[0016] Compared with the prior art, the present invention provides a sonic soot blower for a boiler and a soot removal method, which have the following beneficial effects:

[0017] 1. The sonic soot blower can be adjusted in position according to actual use through the internally arranged walking parts, so as to clean the dead corners of the boiler inner wall and effectively improve the overall cleaning efficiency.

[0018] 2. During the soot cleaning process, the sonic soot blower adopts a non-contact soot removal method, which will not cause wear to the heating surface of the boiler and extend the service life of the equipment.

[0019] 3. During use, the sonic soot blower consumes significantly less energy than traditional soot blowers, thus saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0021] Figure 2 It is a cross-sectional structural diagram of the telescopic dust cleaning component of the present invention;

[0022] Figure 3 It is a schematic diagram of the component structure of the steam intake valve in a specific embodiment of the present invention;

[0023] Figure 4 It is a partial enlarged view of A of the present invention;

[0024] Figure 5 It is a schematic diagram of the component structure of the sound wave output tube in a specific implementation manner of the present invention.

[0025] In the figure: 1. steam intake valve; 2. telescopic cleaning component; 3. walking component; 4. matching rack; 5. driving limit component; 101. driving motor; 102. reducer; 103. sound wave generator; 104. sealing retaining ring; 105. sound wave output pipe; 106. matching bracket; 201. telescopic rod; 202. main valve body; 203. height adjustment spring; 204. position correction buckle; 205. intake pipe; 206. insulation layer; 301. self-locking buckle; 302. creeping drive motor; 303. upper mounting strip; 401. driving upper support plate; 402. positioning slot; 403. sealing pin shaft; 404. high temperature resistant coating; 501. upper matching shaft; 502. sound wave output inner cavity; 503. limiting bracket; 504. sound wave vibration marble. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] Embodiment 1:

[0029] Reference Figure 1-5 This embodiment provides a sonic soot blower for a boiler, and its structure is as follows Figure 1-5 As shown: the soot blower includes a steam inlet valve 1, a telescopic cleaning component 2, a running component 3, a matching rack 4 and a driving limit component 5. The driving limit component 5 is arranged on the inner wall of the boiler furnace, and a matching rack 4 is arranged on the outer end thereof. The running component 3 is arranged on the outer side of the telescopic cleaning component 2, and the running component 3 is meshed with the matching rack 4 to realize the up and down reciprocating motion of the telescopic cleaning component 2. The base of the telescopic cleaning component 2 is connected with the steam inlet valve 1.

[0030] The telescopic dust cleaning component 2 includes a driving motor 101, a reducer 102, a sound wave generator 103, a sound wave output pipe 105 and a matching bracket 106. The matching bracket 106 is engaged with the steam inlet valve 1, the sound wave generator 103 is matched with the lower side of the matching bracket 106, and the sound wave output pipe 105 is matched with the lower end of the sound wave generator 103. The driving motor 101 and the reducer 102 are matched with the outer side of the sound wave generator 103, and the output end of the driving motor 101 is matched with the reducer 102. The telescopic cleaning component 2 can, according to actual cleaning needs, drive the matching bracket 106 to move up and down reciprocatingly through the engagement of the walking component 3 with the matching rack 4, thereby achieving cleaning tasks in different areas; the driving motor 101 and the reducer 102 arranged inside the telescopic cleaning component 2 drive the sound wave generator 103 during operation, and the sound wave generator 103 outputs sound through the sound wave output tube 105 arranged at the bottom, thereby completing the sound wave dust removal function.

[0031] A clamping groove is arranged on the side of the telescopic dust cleaning component 2, and a walking component 3 is arranged in the inside of the groove, and the walking component 3 is arranged vertically with the telescopic dust cleaning component 2. A sealing ring 104 is arranged at the connection between the sound wave generator 103 and the matching bracket 106.

[0032] The steam inlet valve 1 includes a telescopic rod 201, a main valve body 202, a height adjustment spring 203, a position correction buckle 204 and an air inlet pipe 205. The telescopic rod 201 is arranged at the outer side of the steam inlet valve 1, and the telescopic rod 201 is installed in cooperation with the matching bracket 106. The position correction buckle 204 is arranged at the outer side of the telescopic rod 201, and the main valve body 202 is arranged at the lower part of the telescopic rod 201. The main valve body 202 processes the boiler steam inside, and the height adjustment spring 203 is arranged at the upper end of the main valve body 202, and the air inlet pipe 205 is arranged at the lower part of the main valve body 202. The outer wall of the air inlet pipe 205 is provided with a heat insulation layer 206. The internal fixed position of the steam inlet valve 1 can be adjusted according to the height adjustment spring 203, and the hot steam inside the boiler can be sucked into the main valve body 202 through the air inlet pipe 205, and then the sonic generator 103 is assisted to perform the dust cleaning work.

[0033] The driving limit component 5 includes a self-locking buckle 301, a creeping drive motor 302 and an upper mounting bar 303. The upper mounting bar 303 is arranged at the upper position of the driving limit component 5, the right end of the upper mounting bar 303 is arranged with the self-locking buckle 301, the lower position of the upper mounting bar 303 is engaged with the creeping drive motor 302, and the lower part of the creeping drive motor 302 is arranged with the walking component 3. The driving limit component 5 is driven by the creeping drive motor 302 to change the position of the walking component 3 and the matching rack 4. At the same time, the self-locking buckle 301 and the upper mounting bar 303 arranged at the upper position can adjust the limit state according to the actual cleaning requirements. When the lower walking component needs to be locked, the self-locking buckle 301 is engaged with the upper mounting bar 303 to achieve the fixing function.

[0034] A driving upper support plate 401 and a positioning slot 402 are provided at the contact position between the walking component 3 and the matching rack 4. A matching gear is provided inside the driving upper support plate 401, and the matching gear is meshed with the matching rack 4. A sealing pin 403 is provided between the driving upper support plate 401 and the positioning slot 402. A high temperature resistant coating 404 is provided at the external position of the walking component 3, and the high temperature resistant coating 404 covers the outer wall position of the walking component 3.

[0035] The interior of the sound wave output tube 105 includes an upper matching shaft 501, a sound wave output inner cavity 502, a limiting clip 503 and a sound wave vibration marble 504. The upper matching shaft 501 is connected with the output end of the driving motor 101, and the outer end of the upper matching shaft 501 is provided with a sound wave output inner cavity 502, and the lower position of the upper matching shaft 501 is provided with three symmetrically distributed limiting clips 503, and the inner side of the limiting clip 503 is provided with a sound wave vibration marble 504. The upper matching shaft 501 and the sound wave output inner cavity 502 are gap-matched. After the sound wave is output to the sound wave output tube 105 through the sound wave generator 103, the sound wave vibration marble 504 and the sound wave output inner cavity 502 set inside the upper matching shaft 501 are driven to vibrate, thereby forming a uniform sound field for the whole. The energy of the sound wave loosens and falls off the accumulated dust, thereby achieving the purpose of dust removal.

[0036] Embodiment 2:

[0037] Reference Figure 1-5 , which is basically the same as Example 1. Furthermore, this embodiment provides a method for removing ash using a sonic soot blower for a boiler, and the specific steps are as follows:

[0038] Adjust the position: according to the dust accumulation on the heating surface of the boiler, adjust the relative position of the walking component 3 and the matching rack 4 so that the telescopic cleaning component 2 can cover the area that needs to be cleaned.

[0039] Start the sound wave generator: Start the sound wave generator 103, and adjust the frequency and sound pressure level of the sound wave generator 103 according to the dust accumulation on the boiler heating surface. The sound waves generated by the sound wave generator 103 are transmitted to the boiler heating surface through the sound wave output pipe 105.

[0040] Sonic dust removal: After the sound wave is transmitted to the sound wave output tube 105, the sound wave vibrates the marble 504 to generate vibration in the sound wave output inner cavity 502, loosening and falling off the dust. The frequency and sound pressure level of the sound wave can be adjusted according to the thickness and hardness of the dust accumulation. The frequency of the sound wave generator is selected in the range of 200Hz to 500Hz, and the sound pressure level is selected at about 130dB to achieve the best dust removal effect.

[0041] Reciprocating motion: The walking component 3 meshes with the matching rack 4 to drive the telescopic cleaning component 2 to reciprocate up and down, ensuring that the sound wave output tube 105 can cover the entire heating surface and completely remove the accumulated dust.

[0042] Steam assistance: During the sonic dust removal process, the steam inlet valve 1 injects steam into the boiler through the inlet pipe 205. The impact force of the steam further assists in removing the accumulated dust and improves the dust removal efficiency.

[0043] End of cleaning: When the dust accumulation is cleaned, the sonic generator 103 and the steam inlet valve 1 are closed, and the telescopic dust cleaning component 2 returns to the initial position to complete the dust removal process.

[0044] Through the above steps, the boiler sonic soot blower and ash removal method provided in this embodiment can effectively remove ash deposits on the heating surface of the boiler, thereby improving the thermal efficiency and service life of the boiler.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sonic soot blower for a boiler and a soot removal method, comprising a steam inlet valve (1), a telescopic soot removal component (2) and a drive limit component (5), wherein the drive limit component (5) is arranged on the inner wall of the boiler furnace, and is characterized in that: A matching rack (4) is provided at the outer end of the driving limit component (5), and a walking component (3) is provided at the outer side of the telescopic cleaning component (2). The walking component (3) is meshed with the matching rack (4) to realize the up and down reciprocating movement of the telescopic cleaning component (2). The base of the telescopic cleaning component (2) is connected to the steam inlet valve (1).

2. A boiler sonic soot blower and ash removal method according to claim 1, characterized in that: The telescopic dust cleaning component (2) comprises a driving motor (101), a reducer (102), a sound wave generator (103), a sound wave output pipe (105) and a matching bracket (106); the matching bracket (106) is arranged in engagement with the steam inlet valve (1); the sound wave generator (103) is arranged at the lower side of the matching bracket (106); the sound wave output pipe (105) is arranged at the lower end of the sound wave generator (103); the driving motor (101) and the reducer (102) are arranged at the outer side of the sound wave generator (103); and the output end of the driving motor (101) is arranged in coordination with the reducer (102).

3. A boiler sonic soot blower and ash removal method according to claim 1, characterized in that: The telescopic dust cleaning component (2) is provided with a snap-fitting groove at the side thereof, a walking component (3) is snap-fitted inside the groove, and the walking component (3) is arranged to cooperate vertically with the telescopic dust cleaning component (2).

4. A boiler sonic soot blower and ash removal method according to claim 2, characterized in that: A sealing ring (104) is provided at the connection between the sound wave generator (103) and the matching bracket (106).

5. A boiler sonic soot blower and ash removal method according to claim 1, characterized in that: The steam intake valve (1) comprises a telescopic rod (201), a main valve body (202), a height adjustment spring (203), a position correction buckle (204) and an intake pipe (205). The telescopic rod (201) is arranged at an outer position of the steam intake valve (1). The telescopic rod (201) is installed in cooperation with a matching bracket (106). A position correction buckle (204) is arranged at an outer position of the telescopic rod (201). The main valve body (202) is arranged at a lower position of the telescopic rod (201). The boiler steam is processed inside the main valve body (202). A height adjustment spring (203) is arranged at an upper end of the main valve body (202). The intake pipe (205) is arranged at a lower position of the main valve body (202).

6. A boiler sonic soot blower and ash removal method according to claim 5, characterized in that: A heat-insulating layer (206) is provided on the outer wall of the air inlet pipe (205).

7. A boiler sonic soot blower and ash removal method according to claim 1, characterized in that: The driving limit component (5) comprises a self-locking buckle (301), a creeping driving motor (302) and an upper mounting bar (303) inside; the upper mounting bar (303) is arranged in cooperation with the upper position of the driving limit component (5); the right end of the upper mounting bar (303) is arranged in cooperation with the self-locking buckle (301); the lower position of the upper mounting bar (303) is engaged with the creeping driving motor (302); and the lower part of the creeping driving motor (302) is arranged in cooperation with the walking component (3).

8. A boiler sonic soot blower and ash removal method according to claim 1, characterized in that: A driving upper support plate (401) and a positioning slot (402) are provided at the contact position between the walking component (3) and the matching rack (4); a matching gear is provided at the inner side of the driving upper support plate (401), and the matching gear is meshed with the matching rack (4); a sealing pin shaft (403) is provided at the position between the driving upper support plate (401) and the positioning slot (402); a high-temperature resistant coating (404) is provided at the outer position of the walking component (3), and the high-temperature resistant coating (404) covers the outer wall position of the walking component (3).

9. A boiler sonic soot blower and ash removal method according to claim 2, characterized in that: The sonic wave output tube (105) comprises an upper mating shaft (501), a sonic wave output inner cavity (502), a limiting clip (503) and a sonic wave vibration ball (504); the upper mating shaft (501) is matingly connected to the output end of the drive motor (101); the outer end of the upper mating shaft (501) is provided with a sonic wave output inner cavity (502); three symmetrically distributed limiting clips (503) are provided at the lower portion of the upper mating shaft (501); and the sonic wave vibration ball (504) is provided at the inner side of the limiting clip (503).

10. A boiler sonic soot blower and a soot removal method according to claim 9, characterized in that: The upper matching shaft (501) and the sound wave output inner cavity (502) are clearance matched.

11. A boiler sonic soot blower and a soot removal method according to claim 1, characterized in that: The sonic soot blower for a boiler uses the following steps of: adjusting the relative positions of a walking component (3) and a matching rack (4) according to the soot accumulation on the boiler heating surface; then starting a sonic wave generator (103); and adjusting the frequency and sound pressure level of the sonic wave generator (103) according to the soot accumulation on the boiler heating surface; and transmitting the sonic wave to a sonic wave output pipe (105) to loosen and remove the soot.

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