MicroPa self-cleaning long-range desulfurization spray gun

Abstract

The invention belongs to the technical field of desulfurization spray guns, and particularly relates to a microPa self-cleaning long-range desulfurization spray gun which is characterized in that the microPa self-cleaning long-range desulfurization spray gun comprises a first pipe body, a vibration assembly and a spraying assembly, a gas inlet is formed in the outer side of one end of the first pipe body, and a liquid inlet is formed in one side of the gas inlet; in the using process, the spiral fins arranged in the middle in the opposite direction can ensure that blocking can be generated through direction changing when airflow flows in the pipe body, vibration is effectively generated in an inner cavity of the whole pipe body in cooperation with high-speed flowing of the airflow, and the situation that the whole equipment is blocked by attachments caused by internal liquid is effectively reduced through vibration; and a cleaning agent can be poured into the liquid pipe through the circulating assembly, internal stubborn residues are effectively softened and cleaned, further cleaning is carried out through suction and spraying operation, pipelines with different diameters are arranged at multiple positions of the whole equipment, pressurization can be effectively carried out, the spraying pressure of the spraying head is improved, and the using effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of desulfurization spray guns, and in particular to a micro-Pa self-cleaning long-range desulfurization spray gun. Background Art

[0002] In the existing field of desulfurization technology, long-range desulfurization spray guns are key equipment and are widely used in flue gas desulfurization systems, especially for flue gas treatment in large industrial boilers and power plants. At present, the mainstream desulfurization spray guns on the market mostly adopt a fixed nozzle design, which achieves the desulfurization effect by spraying desulfurizers such as limestone slurry into the flue gas under high pressure.

[0003] However, the nozzle of the desulfurization spray gun in the prior art is easily clogged, which makes it difficult to perform internal self-cleaning operations.

[0004] For this purpose, a micropascal self-cleaning long-range desulfurization spray gun is needed. Summary of the invention

[0005] The micropascal self-cleaning long-range desulfurization spray gun proposed by the present invention solves the problem in the prior art that the nozzle is prone to clogging and it is not convenient to perform internal self-cleaning operation.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A micro-Pa self-cleaning long-range desulfurization spray gun comprises a first tube body, a vibration assembly and a spray assembly, a gas inlet is arranged on the outer side of one end of the first tube body, a liquid inlet is arranged on one side of the gas inlet, a first liquid pipe is arranged at the end of the liquid inlet, a second tube body is welded to the end of the first tube body, a vibration assembly is arranged inside the first tube body and the second tube body, a third tube body is welded to the end of the second tube body, a second liquid pipe with a smaller diameter is integrated at the end of the first liquid pipe, a circulation assembly is arranged for external circulation between the first liquid pipe and the second liquid pipe, the middle part of a double-headed gas pipe is vertically welded to the end of the third tube body, spray assemblies are threadedly installed at both ends of the double-headed gas pipe, and a boosting mechanism is arranged inside the spray assembly.

[0008] Preferably, the vibration component comprises positive spiral fins and reverse spiral fins, the inner wall of the second tube body is spirally provided with reverse spiral fins, and the thread of the reverse spiral fin is arranged in the opposite direction to the thread of the positive spiral fin.

[0009] Preferably, the inner diameter of the second tube body is smaller than the inner diameter of the first tube body, and an air circulation cavity is formed between the first liquid tube, the second tube body and the first tube body.

[0010] Preferably, the circulation component includes an injection pipe, a circulation pump, a connecting pipe, a cleaning liquid tank, a liquid extraction pipe and a liquid discharge pipe. The end of the injection pipe is connected to the circulation pump, the outer end of the circulation pump is connected to the connecting pipe, the end of the connecting pipe is connected to the cleaning liquid tank, the end of the circulation pump is provided with a liquid extraction pipe on the side away from the injection pipe, and the outer side of the circulation pump is provided with a liquid discharge pipe.

[0011] Preferably, the spray assembly comprises a spray head and a pressurizing mechanism, a spray port is formed at the end of the spray head, a stopper is concentrically arranged outside the spray port, and a limit block is fixed on the inner wall of the spray head.

[0012] Preferably, the nozzle is threadedly connected to the double-ended air pipe, the end of the nozzle is conically arranged, and the nozzle is symmetrically arranged about the central axis of the double-ended air pipe.

[0013] Preferably, the boosting mechanism includes a first elliptical piece and a second elliptical piece, and a double-ended water pipe integrally connected to the end of the second liquid pipe, and thin tubes are symmetrically arranged at both ends of the double-ended water pipe, and cone-head tubes are welded to the ends of the thin tubes.

[0014] Preferably, a first elliptical piece is welded through the outer wall of the cone head tube, a second elliptical piece is arranged on one side of the first elliptical piece, and the second elliptical piece is welded to the inner wall of the connecting end of the double-headed air pipe and the nozzle.

[0015] Preferably, a gap is left between the second elliptical piece and the first elliptical piece after installation, the diameter of the capillary tube is smaller than the diameter of the double-headed water pipe and the conical head tube, and the end of the conical head tube is conically set.

[0016] The present invention proposes a micropascal self-cleaning long-range desulfurization spray gun. Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. During the use of the present invention, the spiral fins arranged in the relative directions in the middle can ensure that the airflow inside the tube body can be blocked by changing direction when flowing, and the high-speed flow of the airflow effectively causes the inner cavity of the entire tube body to vibrate, which is beneficial for the overall equipment to effectively reduce the blockage caused by internal liquid attachments through vibration, and can inject detergent into the liquid pipe through the circulation component to effectively soften and clean the stubborn residue inside, and further clean it through suction and spraying operations. The overall equipment is provided with pipes of different diameters in multiple places, which can effectively increase the pressure, increase the spraying pressure of the nozzle, and improve the use effect.

[0018] 2. The present invention sets a vibration component. When in use, air is supplied to the interior of the first tube body through the gas inlet. The high-speed flowing gas is delivered by pressure to ensure that the liquid can be finally sprayed. The inner walls of the first tube body and the second tube body through which the gas flows are provided with positive spiral fins and reverse spiral fins arranged in opposite directions. When the gas passes through the interior of the first tube body, it forms a clockwise flow state through the positive spiral fins. When it flows to the interior of the second tube body, it meets the reverse spiral fins and changes the flow direction to a counterclockwise direction. Due to the fast internal air flow speed, turbulence is generated during the transition process, which better impacts the interior of the tube body and the outside of the liquid tube, ensures that vibration is effectively and stably generated, and better reduces the blockage caused by attachments in the internal liquid through vibration.

[0019] 3. The present invention sets a circulation component. By adding a circulation component, a loop can be formed through a circulation pump and multiple groups of pipes, ensuring that the cleaning liquid in the cleaning liquid tank can be stably injected into the interior of the equipment through the water injection pipe and flow cleaned by reverse suction, and finally discharged through the discharge pipe. The cleaning liquid can be effectively transported to the internal pipes and nozzles of the equipment, and timely cleaning operations can be performed. Finally, clean water is injected into the interior of the first liquid pipe through the liquid inlet to complete the flushing operation. No manual cleaning is required, and vibration is used to reduce stubborn residues, ensuring internal self-cleaning effects.

[0020] 4. The present invention provides a spray assembly, and compared with the conventional fixed spray head, the end is provided with a double spray head, and the threaded connection can be flexibly disassembled, cleaned or replaced according to needs. An air cavity is formed between the inside of the double-headed air pipe and the outside of the double-headed water pipe. When the gap is transported to the double-headed air pipe through the third tube body, the high-speed flowing gas will be further pressurized in the cavity of the double-headed air pipe due to the small gap between the first elliptical plate and the second elliptical plate at both ends, and will be sprayed outward through the gap between the first elliptical plate and the second elliptical plate, effectively performing end pressurization to ensure the spraying pressure, so that the equipment itself does not need to provide excessively high pressure and can still ensure that the spraying range reaches the required range. In addition, a thin tube is provided between the double-headed water pipe and the cone-head tube to effectively compress the liquid, thereby increasing the flow pressure of the liquid, and further compressing the end of the cone-head tube through a cone shape to ensure that the injection pressure of the water flow of the equipment can cooperate with the airflow, thereby ensuring the overall injection force used, thereby supporting the maintenance of the injection range. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the micropascal self-cleaning long-range desulfurization spray gun of the present invention.

[0022] Figure 2 This is a schematic diagram of the overall sectional overhead structure of the micropascal self-cleaning long-range desulfurization spray gun of the present invention.

[0023] Figure 3This is a schematic diagram of the overall cross-sectional internal structure of the micropascal self-cleaning long-range desulfurization spray gun of the present invention.

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the spray assembly of the micropascal self-cleaning long-range desulfurization spray gun of the present invention.

[0025] Figure 5 It is a schematic diagram of the structure of the boosting mechanism of the micropascal self-cleaning long-range desulfurization spray gun of the present invention.

[0026] In the figure: 1. first tube body; 2. gas inlet; 3. liquid inlet; 4. positive spiral fin; 5. second tube body; 6. reverse spiral fin; 7. third tube body; 8. first liquid tube; 9. second liquid tube; 10. circulation component; 1001. water injection pipe; 1002. circulation pump; 1003. connecting pipe; 1004. cleaning liquid tank; 1005. liquid extraction pipe; 1006. liquid discharge pipe; 11. double-headed air pipe; 12. nozzle; 13. nozzle; 14. stopper; 15. limit block; 16. first elliptical piece; 17. double-headed water pipe; 18. capillary tube; 19. conical head tube; 20. second elliptical piece. DETAILED DESCRIPTION

[0027] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-5 The present invention provides a technical solution: a micro-Pa self-cleaning long-range desulfurization spray gun, comprising a first tube body 1, a vibration component and a spray component, a gas inlet 2 is arranged on the outside of one end of the first tube body 1, a liquid inlet 3 is arranged on one side of the gas inlet 2, a first liquid pipe 8 is arranged at the end of the liquid inlet 3, a second tube body 5 is welded and connected to the end of the first tube body 1, a vibration component is arranged inside the first tube body 1 and the second tube body 5, a third tube body 7 is welded to the end of the second tube body 5, a second liquid pipe 9 with a smaller diameter is integrated at the end of the first liquid pipe 8, a circulation component 10 is arranged for external circulation between the first liquid pipe 8 and the second liquid pipe 9, the middle part of a double-headed gas pipe 11 is vertically welded to the end of the third tube body 7, spray components are threadedly installed at both ends of the double-headed gas pipe 11, and a boosting mechanism is arranged inside the spray component.

[0029] Furthermore, the vibration component includes a positive spiral fin 4 and a reverse spiral fin 6. The inner wall of the second tube body 5 is spirally provided with the reverse spiral fin 6. The thread of the reverse spiral fin 6 is arranged in the opposite direction to the thread of the positive spiral fin 4. When the gas passes through the inside of the first tube body 1, it forms a clockwise flow state through the positive spiral fin 4. When it flows into the inside of the second tube body 5, it meets the reverse spiral fin 6 and changes the flow direction, that is, changes to a counterclockwise direction. Due to the fast internal air flow speed, turbulence will be generated during the transformation process, which better impacts the inside of the tube body and the outside of the liquid tube, ensuring effective and stable vibration.

[0030] Furthermore, the inner diameter of the second tube body 5 is smaller than the inner diameter of the first tube body 1 , and an air circulation cavity is formed between the first liquid tube 8 , the second tube body 5 and the first tube body 1 .

[0031] Furthermore, the circulation component 10 includes an injection pipe 1001, a circulation pump 1002, a connecting pipe 1003, a cleaning liquid tank 1004, a liquid extraction pipe 1005 and a liquid discharge pipe 1006. The end of the injection pipe 1001 is connected to the circulation pump 1002, the outer end of the circulation pump 1002 is connected to the connecting pipe 1003, the end of the connecting pipe 1003 is connected to the cleaning liquid tank 1004, the end of the circulation pump 1002 is provided with a liquid extraction pipe 1005 on the side away from the injection pipe 1001, and the outer side of the circulation pump 1002 is provided with a liquid discharge pipe 1006. The cleaning liquid can be effectively transported between the internal pipelines and the nozzles 12 of the equipment, and timely cleaning operations can be performed. Finally, clean water is injected into the interior of the first liquid pipe 8 through the liquid inlet 3 to complete the flushing operation. No manual cleaning is required, and vibration is used to reduce stubborn residues, thereby ensuring internal self-cleaning effects.

[0032] Furthermore, the spray assembly includes a spray head 12 and a pressurizing mechanism. A spray port 13 is formed at the end of the spray head 12 . A stopper 14 is concentrically disposed outside the spray port 13 . A limit block 15 is fixed to the inner wall of the spray head 12 .

[0033] Furthermore, the nozzle 12 and the double-headed air pipe 11 are threadedly connected, the end of the nozzle 12 is conically set, and the nozzle 12 is symmetrically set about the central axis of the double-headed air pipe 11. The setting of the double nozzle 12 ensures a wider overall spraying range, and the threaded connection can be flexibly disassembled, cleaned or replaced according to needs.

[0034] Furthermore, the boosting mechanism includes a first elliptical piece 16 and a second elliptical piece 20, and a double-ended water pipe 17 which is integrally connected to the end of the second liquid pipe 9, and thin tubes 18 are symmetrically arranged at both ends of the double-ended water pipe 17, and conical head tubes 19 are welded to the ends of the thin tubes 18; since the gap between the first elliptical piece 16 and the second elliptical piece 20 at both ends is small, the high-speed flowing gas will be further pressurized in the cavity of the double-ended air pipe 11.

[0035] A first elliptical piece 16 is welded through the outer wall of the conical head tube 19, and a second elliptical piece 20 is arranged on one side of the first elliptical piece 16. The second elliptical piece 20 is welded to the inner wall of the connecting end of the double-headed air pipe 11 and the nozzle 12, and sprays outward through the gap between the first elliptical piece 16 and the second elliptical piece 20, effectively performing end pressurization to ensure the spraying pressure.

[0036] Furthermore, a gap is left between the second elliptical piece 20 and the first elliptical piece 16 after installation, the diameter of the capillary 18 is smaller than the diameters of the double-headed water pipe 17 and the conical head tube 19, and the end of the conical head tube 19 is set in a conical shape, which increases the flow pressure of the liquid, and further compresses the end of the conical head tube 19 through a cone shape to ensure that the injection pressure of the water flow of the equipment can cooperate with the airflow, thereby ensuring the overall injection force used, thereby supporting the maintenance of the injection range.

[0037] Working principle: First, when in use, air is supplied to the interior of the first tube body 1 through the gas inlet 2, and the high-speed flowing gas is delivered by pressure to ensure that the liquid can be finally sprayed. The inner walls of the first tube body 1 and the second tube body 5 through which the gas flows are provided with positive spiral fins 4 and reverse spiral fins 6 arranged in opposite directions. When the gas passes through the interior of the first tube body 1, a clockwise flow state is formed through the positive spiral fins 4. When it flows to the interior of the second tube body 5, it meets the reverse spiral fins 6 and changes the flow direction, that is, changes to a counterclockwise direction. Due to the fast internal air flow speed, turbulence will be generated during the transition process, which better impacts the inside of the tube body and the outside of the liquid tube, ensures effective and stable vibration, and better reduces the blockage caused by attachments in the internal liquid through vibration.

[0038] Next, by adding a circulation component 10, a loop can be formed through the circulation pump 1002 and multiple groups of pipes, ensuring that the cleaning liquid in the cleaning liquid tank 1004 can be stably injected into the interior of the equipment through the water injection pipe 1001 and flow cleaned by reverse suction, and finally discharged through the discharge pipe 1006, so as to effectively transport the cleaning liquid to the internal pipes and nozzles 12 of the equipment, and perform timely cleaning operations. Finally, clean water is injected into the interior of the first liquid pipe 8 through the liquid inlet 3 to complete the flushing operation. No manual cleaning is required, and vibration is used to reduce stubborn residues, ensuring internal self-cleaning effect.

[0039] Finally, compared with the conventional fixed spray head, the end of the equipment is provided with a double spray head 12, and the threaded connection can be flexibly disassembled, cleaned or replaced as needed. An air cavity is formed between the inside of the double-headed air pipe 11 and the outside of the double-headed water pipe 17. When the gap is transported to the double-headed air pipe 11 through the third tube body 7, due to the small gap between the first elliptical plate 16 and the second elliptical plate 20 at both ends, the high-speed flowing gas will be further pressurized in the cavity of the double-headed air pipe 11, and sprayed outward through the gap between the first elliptical plate 16 and the second elliptical plate 20, effectively pressurizing the end to ensure the spraying pressure, so that the equipment itself does not need to provide excessive pressure and can still ensure that the spraying range reaches the required range. In addition, a thin tube 18 is provided between the double-headed water pipe 17 and the cone-headed tube 19 to effectively compress the liquid, thereby increasing the flow pressure of the liquid, and further compressing it through a cone shape at the end of the cone-headed tube 19 to ensure that the spray pressure of the equipment water flow can cooperate with the airflow, thereby ensuring the overall spray force used, thereby supporting the maintenance of the spray range.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A micropascal self-cleaning long-range desulfurization spray gun, comprising a first tube body (1), a vibration component and a spray component, characterized in that: A gas inlet (2) is arranged on the outside of one end of the first tube body (1), a liquid inlet (3) is arranged on one side of the gas inlet (2), a first liquid pipe (8) is arranged at the end of the liquid inlet (3), a second tube body (5) is welded to the end of the first tube body (1), a vibration component is arranged inside the first tube body (1) and the second tube body (5), a third tube body (7) is welded to the end of the second tube body (5), a second liquid pipe (9) with a smaller diameter is arranged at the end of the first liquid pipe (8), a circulation component (10) is arranged outside the first liquid pipe (8) and the second liquid pipe (9), the middle part of a double-headed gas pipe (11) is vertically welded to the end of the third tube body (7), spray components are threadedly installed at both ends of the double-headed gas pipe (11), and a boosting mechanism is arranged inside the spray component.

2. A micropascal self-cleaning long-range desulfurization spray gun according to claim 1, characterized in that: The vibration component comprises a positive spiral fin (4) and a reverse spiral fin (6); the inner wall of the second tube (5) is spirally provided with a reverse spiral fin (6); the thread of the reverse spiral fin (6) is arranged in the opposite direction to the thread of the positive spiral fin (4).

3. A micropascal self-cleaning long-range desulfurization spray gun according to claim 1, characterized in that: The inner diameter of the second tube body (5) is smaller than the inner diameter of the first tube body (1), and an air circulation cavity is formed between the first liquid tube (8), the second tube body (5) and the first tube body (1).

4. A micropascal self-cleaning long-range desulfurization spray gun according to claim 1, characterized in that: The circulation component (10) comprises a water injection pipe (1001) and a circulation pump (1002); the end of the water injection pipe (1001) is connected to the circulation pump (1002); one end of the outer side of the circulation pump (1002) is connected to a connecting pipe (1003); the end of the connecting pipe (1003) is connected to a cleaning liquid tank (1004); a liquid extraction pipe (1005) is provided at the end of the circulation pump (1002) away from the water injection pipe (1001); and a liquid discharge pipe (1006) is provided at the outer side of the circulation pump (1002) close to the liquid extraction pipe (1005).

5. The micropascal self-cleaning long-range desulfurization spray gun according to claim 1 is characterized in that: The spray assembly comprises a spray head (12) and a pressure-boosting mechanism; a spray port (13) is provided at the end of the spray head (12); a stopper (14) is concentrically arranged outside the spray port (13); and a limit block (15) is fixed to the inner wall of the spray head (12).

6. A micropascal self-cleaning long-range desulfurization spray gun according to claim 2, characterized in that: The nozzle (12) is threadedly connected to the double-ended air pipe (11), the end of the nozzle (12) is arranged in a conical shape, and the nozzle (12) is symmetrically arranged about the central axis of the double-ended air pipe (11).

7. A micropascal self-cleaning long-range desulfurization spray gun according to claim 2, characterized in that: The pressurizing mechanism comprises a first elliptical plate (16) and a second elliptical plate (20), and a double-ended water pipe (17) integrally connected to the end of the second liquid pipe (9), and thin tubes (18) are symmetrically arranged at both ends of the double-ended water pipe (17), and a cone-headed tube (19) is welded to the end of the thin tube (18).

8. A micropascal self-cleaning long-range desulfurization spray gun according to claim 7, characterized in that: A first elliptical plate (16) is welded through the outer wall of the cone head tube (19), a second elliptical plate (20) is provided on one side of the first elliptical plate (16), and the second elliptical plate (20) is welded to the inner wall of the connection end of the double-headed air pipe (11) and the nozzle (12).

9. A micropascal self-cleaning long-range desulfurization spray gun according to claim 8, characterized in that: A gap is left between the second elliptical plate (20) and the first elliptical plate (16) after installation.

10. A micropascal self-cleaning long-range desulfurization spray gun according to claim 9, characterized in that: The diameter of the thin tube (18) is smaller than the diameters of the double-ended water pipe (17) and the conical-head tube (19), and the end of the conical-head tube (19) is conical.

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