Soot blower with blowing nozzle convenient to replace

Abstract

The utility model relates to a soot blower with a blowing nozzle convenient to replace, and belongs to the technical field of boiler soot blowers. The soot blower comprises a frame, a sealing seat, a lifting valve, a soot blowing pipe, a connecting arm, a top block, a convex block, a driving motor, a transmission fluted disc, a gear, a transmission chain, the blowing nozzle and a plurality of blowing holes; the sealing seat is installed in the frame, the sealing seat is communicated with the lifting valve, the soot blowing pipe is rotationally arranged in the sealing seat, the connecting arm is hinged to a valve rod of the lifting valve, and the transmission fluted disc is installed outside the soot blowing pipe. According to the soot blower with the blowing nozzle convenient to replace, the blowing nozzle is controlled by the arranged moving assembly to move to the opening of the soot blowing pipe and located in the boiler to achieve installation of the blowing nozzle and the soot blowing pipe, locking and fixing after installation are achieved through the locking assembly, meanwhile, the arranged moving assembly controls the blowing nozzle to move into the soot blowing pipe, and therefore the blowing nozzle can be conveniently replaced. And the blowing nozzle can be replaced by opening the sealing cover.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler soot blowers, in particular to a soot blower with a conveniently replaceable blowing nozzle. Background Art

[0002] A soot blower is an instrument used to remove soot accumulated on the heating surface of a boiler. It is usually composed of a soot blowing pipe and operating valves and other components. It is generally installed on the furnace wall of the boiler furnace, horizontal flue and tail flue. According to the structural type, there are several types, such as gun type, rotary type, telescopic type, etc. According to the medium used, there are three types: air soot blowers, steam soot blowers and hydraulic soot blowers. Air soot blowers use the impact force of the high-pressure airflow of compressed air to blow away the soot accumulated on the heating surface; they are often used in industrial boilers.

[0003] Among them, the fixed rotary sootblower drives the blowing nozzle to rotate and blows gas into the boiler for soot blowing treatment. The blowing nozzle and the sootblowing pipe are installed in a threaded connection manner. When disassembling, the sootblowing pipe needs to be removed from the boiler and the blowing nozzle needs to be removed with tools. The threaded connection of the blowing nozzle is prone to rust and is not convenient for disassembly. Therefore, this application designs a sootblower with an easy-to-replace blowing nozzle to solve this technical defect of the prior art. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a sootblower with a conveniently replaceable blowing nozzle, which has the advantages of conveniently replacing the blowing nozzle, etc.

[0005] To achieve the above-mentioned object, the utility model provides the following technical solution: a sootblower with a conveniently replaceable blowing nozzle, comprising a frame, a sealing seat, a poppet valve, a sootblowing pipe, a connecting arm, a top block, a protrusion, a driving motor, a transmission gear plate, a gear, a transmission chain, a blowing nozzle, and a plurality of blowing holes;

[0006] The sealing seat is installed in the frame, the sealing seat is connected to the lifting valve, the soot blowing pipe rotates in the sealing seat, the connecting arm is hinged at the valve stem of the lifting valve, the transmission gear disk is installed on the outside of the soot blowing pipe, the driving motor is installed on the surface of the frame, the gear is installed on the output shaft of the driving motor, the transmission chain is engaged between the gear and the transmission gear disk, and a protrusion is installed on the outside of the transmission gear disk, which contacts the top block through rotation and lifts the top block;

[0007] The sootblowing pipe is provided with an opening on the outside, and a sealing box is installed and sealed on the opening. A sealing cover is provided at the opening of the sealing box. The blowing nozzle is located in the sootblowing pipe, and a moving component for controlling the movement of the blowing nozzle by inflation and exhaust is provided in the sealing box.

[0008] A locking assembly is provided between the blowing nozzle and the soot blowing pipe to lock and fix the blowing nozzle after it moves.

[0009] As a preferred technical solution of the present utility model, the moving assembly includes a telescopic member and an inflation and exhaust control member;

[0010] The telescopic member comprises a telescopic rod installed in the sootblowing pipe, a threaded barrel is installed at the other end of the telescopic rod, and the threaded barrel is connected and fixed to the blowing nozzle.

[0011] The adoption of the technical solution facilitates the back and forth movement of the mouthpiece.

[0012] As an optimal technical solution of the present invention, the blowing hole is provided on the outside of the mouthpiece, the telescopic rod is composed of a plurality of hollow cylinders that are slidably connected to each other, and two adjacent hollow cylinders are inseparable from each other. The connecting end of the telescopic rod and the threaded cylinder is provided with a threaded head that is threadedly connected to the threaded cylinder.

[0013] The above technical solution facilitates the disassembly and separation of the telescopic rod and the mouthpiece.

[0014] As a preferred technical solution of the present invention, the inflation and exhaust control member includes a connecting pipe connected to the outside of the rightmost hollow cylinder and passing through the sealing cover, and a micro air pump and a micro air pump installed on the surface of the sealing cover, and an L-shaped pipe connected to the connecting pipe is connected between the inflation port of the micro air pump and the air extraction port of the micro air pump;

[0015] Wherein, the outside of the L-shaped tube is connected to an automatic switching valve.

[0016] The above technical solution makes it easy to control the extension and contraction of the telescopic rod by inflation and exhaust.

[0017] As an optimal technical solution of the present invention, the locking assembly includes a sealing annular seat connected to the opening of the soot blowing pipe, a plurality of locking holes opened on the outside of the soot blowing pipe opening, and a plurality of mounting grooves opened on the outside of the blowing nozzle corresponding to the locking holes one by one, a stainless steel spring is installed in the mounting groove, and a locking block is installed at the other end of the stainless steel spring.

[0018] The above technical solution facilitates the movement of the blowing nozzle to the opening of the sootblowing pipe and enables fixed installation.

[0019] As a preferred technical solution of the present invention, when the telescopic rod is in an extended state, one end of the mouthpiece passes through the sealing annular seat and fits tightly against the sealing annular seat, and the locking block is located in the locking hole.

[0020] The above technical solution ensures that the locking block is located in the locking hole when the telescopic rod is in the extended state, and realizes the connection and sealing of the sealing annular seat to the blowing nozzle.

[0021] As a preferred technical solution of the present invention, when the stainless steel spring is in an extended state, the locking block and the mounting groove are inseparable; when the stainless steel spring is in a compressed state, the locking block and the locking hole are separated.

[0022] The above technical solution ensures that the blowing nozzle can be separated from the soot blowing pipe when the telescopic rod is in the extended state.

[0023] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0024] The sootblower with easy-to-replace blowing nozzle controls the blowing nozzle to move to the opening of the sootblowing pipe and locates it in the boiler to install the blowing nozzle and the sootblowing pipe, and locks and fixes the nozzle after installation through the locking component. At the same time, the moving component controls the blowing nozzle to move into the sootblowing pipe, and the blowing nozzle can be replaced by opening the cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of the utility model;

[0026] Figure 2 This is a three-dimensional diagram of the utility model after the cover is opened;

[0027] Figure 3 This is an enlarged view of point A of the utility model;

[0028] Figure 4 This is a side perspective view of the present utility model;

[0029] Figure 5 A three-dimensional diagram of the mouthpiece of the present invention;

[0030] Figure 6 For this utility model Figure 5 Cross-sectional view at AA in the middle.

[0031] In the figure: 1. frame; 2. sealing seat; 3. lifting valve; 4. soot blowing pipe; 5. connecting arm; 6. top block; 7. bump; 8. driving motor; 9. transmission gear plate; 10. gear; 11. transmission chain; 12. blowing nozzle; 13. sealing box; 14. telescopic rod; 15. threaded barrel; 16. blowing hole; 17. micro vacuum pump; 18. L-shaped tube; 19. automatic switch valve; 20. sealing ring seat; 21. locking hole; 22. stainless steel spring; 23. locking block; 24. mounting groove; 25. micro air pump; 26. connecting pipe; 27. sealing cover. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1 In this embodiment, a soot blower with a convenient replacement of the blowing nozzle includes a frame 1, a sealing seat 2, a lifting valve 3, a soot blowing pipe 4, a connecting arm 5, a top block 6, a protrusion 7, a driving motor 8, a transmission gear plate 9, a gear 10, a transmission chain 11, a blowing nozzle 12 and a plurality of blowing holes 16.

[0034] The sealing seat 2 is fixed to the right side wall of the inner cavity of the frame 1, the lifting valve 3 is connected to the sealing seat 2, the soot blowing pipe 4 is rotated in a circular manner within the sealing seat 2, the connecting arm 5 is hinged at the valve stem of the lifting valve 3, the transmission gear disc 9 is fixed to the outside of the soot blowing pipe 4, the driving motor 8 is installed on the upper surface of the frame 1, the gear 10 is fixed to the output shaft of the driving motor 8, the transmission chain 11 is engaged between the gear 10 and the transmission gear disc 9, and a protrusion 7 is fixed to the outside of the transmission gear disc 9, which contacts the top block 6 through rotation and lifts the top block 6.

[0035] The connecting arm 5 is hinged to the frame 1 , and the exhaust port of the poppet valve 3 is connected to the sealing seat 2 .

[0036] By driving the motor 8 to drive the gear 10 to rotate, the transmission chain 11 is used to drive the transmission gear plate 9 to rotate synchronously, and the soot blowing pipe 4 is driven to rotate. When rotating, the protrusion 7 is driven to rotate and contact the top block 6 to lift the top block 6, and the connecting arm 5 is driven to rotate to press the valve stem, thereby opening the valve plate for air intake.

[0037] See also Figures 2 to 4 In this embodiment, an opening is provided on the outside of the sootblowing pipe 4, and a sealing box 13 is installed and sealed on the opening. A sealing cover 27 is provided at the opening of the sealing box 13. The blowing nozzle 12 is located in the sootblowing pipe 4, and a moving component is provided in the sealing box 13 to control the movement of the blowing nozzle 12 by inflation and exhaust.

[0038] It should be noted that the moving assembly includes a telescopic component and an inflation and exhaust control component.

[0039] The telescopic member includes a telescopic rod 14 fixedly installed in the sootblowing pipe 4 , and a threaded barrel 15 is fixedly installed at the other end of the telescopic rod 14 , wherein the threaded barrel 15 is connected and fixed to the blowing nozzle 12 .

[0040] The blowing hole 16 is opened on the outside of the mouthpiece 12, and the telescopic rod 14 is composed of a plurality of hollow cylinders that are slidably connected to each other. Two adjacent hollow cylinders are inseparable from each other. One end of the telescopic rod 14 connected to the threaded cylinder 15 is provided with a threaded head that is threadedly connected to the threaded cylinder 15, which facilitates the disassembly and replacement of the mouthpiece 12, and the hollow cylinders do not rotate relative to each other.

[0041] The inflation and exhaust control component includes a connecting pipe 26 connected to the outside of the hollow cylinder on the far right and passing through the sealing cover 27, and a micro air pump 25 and a micro air pump 17 installed on the surface of the sealing cover 27. The inflation port of the micro air pump 25 and the exhaust port of the micro air pump 17 are connected by an L-shaped pipe 18 connected to the connecting pipe 26.

[0042] The outside of the L-shaped tube 18 is connected to an automatic switching valve 19 .

[0043] The automatic switch valve 19 is provided to ensure that the L-shaped pipe 18 is in a closed state when the soot blowing process is being ventilated.

[0044] See also Figures 5 and 6 In this embodiment, a locking assembly is provided between the blowing nozzle 12 and the soot blowing pipe 4 for locking and fixing the blowing nozzle 12 after it is moved.

[0045] It should be noted that the locking assembly includes a sealing annular seat 20 connected to the opening of the soot blowing pipe 4, a plurality of locking holes 21 distributed in annular shapes at equal distances outside the opening of the soot blowing pipe 4, and a plurality of mounting grooves 24 corresponding to the locking holes 21 on the outside of the blowing nozzle 12, a stainless steel spring 22 is installed and fixed in the mounting groove 24, and a locking block 23 is installed and fixed at the other end of the stainless steel spring 22.

[0046] When the telescopic rod 14 is in an extended state, one end of the blowing nozzle 12 passes through the sealing annular seat 20 and fits tightly against the sealing annular seat 20 , and the locking block 23 is located in the locking hole 21 .

[0047] When the stainless steel spring 22 is in an extended state, the locking block 23 and the mounting groove 24 are inseparable. When the stainless steel spring 22 is in a compressed state, the locking block 23 and the locking hole 21 are separated.

[0048] The working principle of the above embodiment is:

[0049] When the blowing nozzle 12 is connected and installed with the soot blowing pipe 4, the micro air pump 25 is started to work and inflate. At the same time, the micro air pump 25, the L-shaped tube 18, the connecting tube 26 and the telescopic rod 14 are connected to each other so that gas is filled into the telescopic rod 14. Under the action of air pressure, the telescopic rod 14 is pushed to extend, and at the same time, the blowing nozzle 12 on the threaded tube 15 is driven to move in the soot blowing pipe 4. At the same time, it passes through the sealing annular seat 20 and is tightly sealed with the sealing annular seat 20. At the same time, the elastic extension and reset action of the stainless steel spring 22 is used to push the locking block 23 to move and be inserted into the locking hole 21 provided on the soot blowing pipe 4, thereby realizing the locking and fixation after the blowing nozzle 12 is connected to the soot blowing pipe 4;

[0050] When the blowing nozzle 12 needs to be disassembled, the set micro air pump 17 is started to work to pump air. At the same time, the micro air pump 17, the L-shaped tube 18, the connecting tube 26 and the telescopic rod 14 are connected to each other to extract the gas in the telescopic rod 14, thereby contracting the telescopic rod 14 and driving the blowing nozzle 12 to move back. At the same time, the locking block 23 contacts and squeezes the soot blowing pipe 4, compressing the stainless steel spring 22 and driving the locking block 23 to separate from the locking hole 21, so that the blowing nozzle 12 can be moved back to the sealing box 13. At this time, the sealing cover 27 is opened, the blowing nozzle 12 is rotated, and the threaded cylinder 15 is separated from the telescopic rod 14. The blowing nozzle 12 can be replaced, and the blowing nozzle 12 can be replaced by avoiding the need to replace the blowing nozzle 12 by disassembling the soot blowing pipe 4 as a whole.

[0051] The electrical components mentioned in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing public power connection technology is not described in detail in this article.

Claims

1. A soot blower with a conveniently replaceable blowing nozzle, comprising a frame (1), a sealing seat (2), a lifting valve (3), a soot blowing pipe (4), a connecting arm (5), a top block (6), a protrusion (7), a driving motor (8), a transmission gear disc (9), a gear (10), a transmission chain (11), a blowing nozzle (12) and a plurality of blowing holes (16); The sealing seat (2) is installed in the frame (1), the lifting valve (3) is connected to the sealing seat (2), the soot blowing pipe (4) rotates in the sealing seat (2), the connecting arm (5) is hinged at the valve stem of the lifting valve (3), the transmission gear disc (9) is installed on the outside of the soot blowing pipe (4), the driving motor (8) is installed on the surface of the frame (1), the gear (10) is installed on the output shaft of the driving motor (8), the transmission chain (11) is engaged between the gear (10) and the transmission gear disc (9), and a protrusion (7) is installed on the outside of the transmission gear disc (9) for contacting the top block (6) by rotating and lifting the top block (6); Its characteristics are: The sootblowing pipe (4) is provided with an opening on the outside, a sealing box (13) is installed and sealed on the opening, a sealing cover (27) is provided at the opening of the sealing box (13), the blowing nozzle (12) is located in the sootblowing pipe (4), and a moving component for controlling the movement of the blowing nozzle (12) by inflation and exhaust is provided in the sealing box (13); A locking assembly for locking and fixing the blowing nozzle (12) after movement is provided between the blowing nozzle (12) and the soot blowing pipe (4).

2. A sootblower with a conveniently replaceable blowing nozzle according to claim 1, characterized in that: The moving assembly includes a telescopic member and an inflation and exhaust control member; Telescopic parts, It comprises a telescopic rod (14) installed in the soot blowing pipe (4), and a threaded barrel (15) is installed at the other end of the telescopic rod (14), wherein the threaded barrel (15) is connected and fixed to the blowing nozzle (12).

3. A sootblower with a conveniently replaceable blowing nozzle according to claim 2, characterized in that: The blowing hole (16) is provided on the outside of the blowing nozzle (12), the telescopic rod (14) is composed of a plurality of hollow cylinders that are slidably connected to each other, and two adjacent hollow cylinders are inseparable from each other. The end of the telescopic rod (14) that is connected to the threaded cylinder (15) is provided with a threaded head that is threadedly connected to the threaded cylinder (15).

4. A sootblower with a conveniently replaceable blowing nozzle according to claim 3, characterized in that: The inflation and exhaust control component comprises a connecting pipe (26) connected to the outside of the rightmost hollow cylinder and passing through the sealing cover (27), and a micro air pump (25) and a micro air extraction pump (17) installed on the surface of the sealing cover (27), wherein an L-shaped pipe (18) connected to the connecting pipe (26) is connected between the inflation port of the micro air pump (25) and the air extraction port of the micro air extraction pump (17); The outside of the L-shaped tube (18) is connected to an automatic switching valve (19).

5. A sootblower with a conveniently replaceable blowing nozzle according to claim 4, characterized in that: The locking assembly comprises a sealing annular seat (20) connected to the opening of the soot blowing pipe (4), a plurality of locking holes (21) provided on the outside of the opening of the soot blowing pipe (4), and a plurality of mounting grooves (24) provided on the outside of the blowing nozzle (12) and corresponding to the locking holes (21), wherein a stainless steel spring (22) is installed in the mounting groove (24), and a locking block (23) is installed at the other end of the stainless steel spring (22).

6. A sootblower with a conveniently replaceable blowing nozzle according to claim 5, characterized in that: When the telescopic rod (14) is in an extended state, one end of the blowing nozzle (12) passes through the sealing annular seat (20) and fits tightly with the sealing annular seat (20), and the locking block (23) is located in the locking hole (21).

7. The sootblower with a conveniently replaceable blowing nozzle according to claim 5, characterized in that: When the stainless steel spring (22) is in an extended state, the locking block (23) and the mounting groove (24) are inseparable; when the stainless steel spring (22) is in a compressed state, the locking block (23) and the locking hole (21) are separated.

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