High-efficiency atomizing nozzle and maintenance method thereof

Abstract

The invention discloses a high-efficiency atomizing spray head and a maintenance method thereof, and relates to the technical field of power plant denitration, the high-efficiency atomizing spray head comprises a spray head assembly, the spray head assembly comprises a spray pipe and a spray cap fixed at one end of the spray pipe, and a liquid passing channel is formed in the spray pipe; the atomization assembly comprises an inner core and a self-adjusting part arranged in the inner core, the inner core is placed in the liquid passing channel in a matched mode, and an air passing channel is formed between the inner core and the inner wall of the spray pipe. The problems that an existing nozzle is blocked by urea crystals, the atomization effect is poor, and the urea utilization rate is low are solved.

Description

Technical Field

[0001] The invention relates to the technical field of denitration in power plants, and in particular to a high-efficiency atomizing nozzle and a maintenance method thereof. Background Art

[0002] The use of urea as a denitrification agent in power plants is an environmentally friendly denitrification technology. It mainly sprays urea solution into the boiler flue. In the temperature range of 850-1100°C, urea decomposes and reacts with nitrogen oxides (NOx) to produce nitrogen and water, thereby reducing NOx emissions. Urea, as a reducing agent, is safe and convenient to transport and store, and is harmless to the environment. It is a reliable substitute for liquid ammonia. This technology not only improves the denitrification efficiency, but also reduces the operating cost, with good economic and environmental benefits.

[0003] However, the existing urea denitrification agent nozzles have problems in structural design, such as urea crystals blocking the nozzles, poor atomization effect, and low urea utilization. Urea crystals blocking the nozzles will cause nozzle blockage, affecting the denitrification efficiency. In severe cases, it may cause corrosion of the boiler heating surface pipes and even boiler pipe burst accidents. Poor atomization effect will result in the inability to fully atomize the urea solution, affecting the reaction efficiency of urea and NOx and reducing the denitrification effect. Low urea utilization will increase operating costs and cause waste of resources. Summary of the invention

[0004] In view of the problems of the above-mentioned existing nozzles, such as urea crystals blocking the nozzles, poor atomization effect and low urea utilization rate, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a high-efficiency atomizing nozzle and a maintenance method thereof, which aims to improve the atomization efficiency of the denitrification agent while reducing the risk of clogging and reducing the difficulty of maintenance.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a high-efficiency atomizing nozzle, which includes a nozzle assembly, including a nozzle and a spray cap fixed at one end thereof, and a liquid passage is provided in the nozzle; an atomizing assembly, including an inner core and a self-adjusting part arranged inside the inner core, and the inner core is placed in the liquid passage, and an air passage is formed between the inner core and the inner wall of the nozzle.

[0007] As a preferred solution of the high-efficiency atomizing nozzle of the present invention, wherein: a liquid supply pipe is sealed and fixed at one end of the nozzle away from the spray cap, and the axis of the liquid supply pipe coincides with the axis of the nozzle and the liquid passage; the nozzle is also fixedly connected to an air supply pipe near the side wall of the liquid supply pipe, and the air supply pipe is connected to the liquid passage.

[0008] As a preferred solution of the high-efficiency atomizing nozzle of the present invention, wherein: a liquid spraying cavity is opened in the spray cap, and the spray cap includes a connecting section and a spraying section fixed at its end; a plurality of groups of barrier blocks are fixed at equal distances on the inner wall of the connection between the connecting section and the spraying section; the connecting section is threadedly sleeved on the end of the nozzle away from the liquid supply pipe, and the barrier block abuts against the end of the nozzle.

[0009] As a preferred solution of the high-efficiency atomizing nozzle of the present invention, a separation ring is provided on the inner wall of the spraying section, and the separation ring separates the liquid spraying cavity into an atomizing cavity and a spraying cavity, and the atomizing cavity and the spraying cavity are connected through a connecting hole provided in the middle of the separation ring; a plurality of groups of spraying holes are also provided on the outer wall of the spraying section at equal intervals, and the spraying holes are connected to the spraying cavity.

[0010] As a preferred solution of the high-efficiency atomizing nozzle of the present invention, the inner core includes a fixed section and a gas transmission section coaxially fixed at its end; the outer diameter of the fixed section is equal to the inner diameter of the liquid passage, and the fixed section can be coaxially slidably inserted into the liquid passage; the outer diameter of the gas transmission section is smaller than the inner diameter of the liquid passage, and the gas passage is located between the outer wall of the gas transmission section and the inner wall of the liquid passage.

[0011] As a preferred solution of the high-efficiency atomizing nozzle of the present invention, wherein: a plurality of groups of spiral plates are equidistantly fixedly connected to the outer wall of the gas transmission section, a spiral gas groove is formed between the spiral plates, and a plurality of groups of adjustment holes are also provided at the bottom of the spiral gas groove on one side close to the fixed section; the adjustment holes are provided along the axial direction of the gas transmission section, and the spiral plates can be placed in the gas passage in a coordinated manner.

[0012] As a preferred solution of the high-efficiency atomizing nozzle of the present invention, a connecting groove is formed between the spiral plate and the fixed section, the connecting groove is connected to a plurality of groups of spiral air grooves, and the air supply pipe corresponds to the position of the connecting groove.

[0013] As a preferred solution of the high-efficiency atomizing nozzle of the present invention, a liquid inlet hole is provided in the middle of the fixed section, an adjusting slide is provided in the middle of one end of the gas transmission section close to the fixed section, the adjusting slide is connected with the liquid inlet hole, and the adjusting hole connects the adjusting slide with the gas passage; an external expansion hole is also provided in the middle of one end of the gas transmission section away from the fixed section, the external expansion hole is connected with the adjusting slide through the liquid through hole.

[0014] As a preferred solution of the high-efficiency atomizing nozzle of the present invention, the self-adjusting component includes a liquid cylinder and a baffle and a plug fixed at both ends thereof, and the outer wall of the liquid cylinder is provided with a plurality of groups of first through holes at equal intervals; a second through hole is provided in the middle of the baffle, and a first spring is also fixed to the side of the baffle close to the liquid cylinder, and a mounting ring is fixed to the end of the first spring, and the mounting ring is fixed to the side wall of the adjusting slide; a sealing plate is also fixed to the outer wall of the baffle, and the sealing plate cooperates to block the adjusting hole, and a cross push ring is also fixed to the end of the plug, and the cross push ring can cooperate to slide and be inserted into the liquid through hole.

[0015] In order to solve the above technical problems, the present invention also provides the following technical solutions: a high-efficiency atomizing nozzle maintenance method, which is suitable for the above-mentioned high-efficiency atomizing nozzle, including when inspecting the nozzle, first closing the liquid supply unit and the air supply unit, and disconnecting the atomizing nozzle from the liquid supply unit and the air supply unit; removing the liquid supply pipe and the spray cap at both ends of the nozzle, and pulling out the inner core, flushing the inner cavity of the nozzle and the inner cavity of the inner core with a high-pressure water gun, and after the flushing is completed, reassembling the atomizing nozzle; when installing, first inserting the inner core into the nozzle, then connecting and fixing the liquid supply pipe, and finally installing the spray cap.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention places the inner core in the nozzle to form independent gas passage and liquid passage for high-pressure gas and urea solution to pass through, and spray out after mutual impact and fusion at the spray cap, thereby optimizing the atomization path of the urea solution.

[0018] Moreover, through the spiral path of the outer wall of the inner core, the gas can be converted into a spiral rotation state and combined with the urea solution, thereby improving the atomization efficiency; when the urea solution needs to be sprayed in large quantities, in order to avoid the reduction of the atomization efficiency, the urea solution and the gas can be pre-fused through the self-adjusting component, and the gas-liquid solution after pre-fusion is impact-fused and atomized with the urea solution again, which can greatly improve the atomization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0020] Figure 1 It is an overall cross-sectional view of the high-efficiency atomizing nozzle of the present invention.

[0021] Figure 2 It is a cross-sectional view of the nozzle assembly of the high-efficiency atomizing nozzle of the present invention.

[0022] Figure 3 It is a cross-sectional view of the spray cap of the high-efficiency atomizing nozzle of the present invention.

[0023] Figure 4 It is a schematic diagram of the inner core structure of the high-efficiency atomizing nozzle of the present invention.

[0024] Figure 5 It is a cross-sectional view of the inner core of the high-efficiency atomizing nozzle of the present invention.

[0025] Figure 6 It is a cross-sectional view of the self-adjusting part of the high-efficiency atomizing nozzle of the present invention.

[0026] Figure 7 It is a diagram of the atomization process of the high-efficiency atomizing nozzle of the present invention. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0031] Example 1

[0032] Reference Figure 1 to Figure 7 , which is the first embodiment of the present invention, provides a high-efficiency atomizing nozzle, which includes a nozzle assembly 100, including a nozzle 101 and a spray cap 102 fixed at one end thereof, and a liquid passage A is opened in the nozzle 101.

[0033] The atomizing assembly 200 includes an inner core 201 and a self-adjusting member 202 disposed inside the inner core 201 . The inner core 201 is placed in the liquid passage A, and an air passage B is formed between the inner core 201 and the inner wall of the nozzle 101 .

[0034] Specifically, a liquid supply pipe 101a is sealed and fixed at one end of the nozzle 101 away from the spray cap 102, and the axis of the liquid supply pipe 101a coincides with the axis of the nozzle 101 and the liquid passage A; the nozzle 101 is also fixedly connected to an air supply pipe 101b near the side wall of the liquid supply pipe 101a, and the air supply pipe 101b is connected to the liquid passage A.

[0035] Among them, the nozzle 101 preferably adopts a cylindrical metal tube to facilitate the transportation of urea solution. Furthermore, the liquid supply pipe 101a is connected to the urea solution supply device, and the gas supply pipe 101b is connected to the high-pressure gas supply device. During use, the urea solution supply device and the high-pressure gas supply device are opened at the same time, and the gas and solution enter the gas passage B and the liquid passage A respectively.

[0036] A liquid spraying cavity C is defined in the spray cap 102, and the spray cap 102 comprises a connecting section 102a-1 and a spraying section 102a-2 fixed at its end; a plurality of blocking blocks 102a-1a are fixed at equal intervals on the inner wall of the connection between the connecting section 102a-1 and the spraying section 102a-2.

[0037] The connecting section 102a - 1 is threadedly sleeved on an end of the nozzle 101 away from the liquid supply pipe 101a , and the blocking block 102a - 1a abuts against the end of the nozzle 101 .

[0038] The connecting section 102a-1 is preferably in the shape of a collar, so as to be sleeved on the end of the nozzle 101, and the spraying section 102a-2 is preferably in the shape of a pointed cone, so as to spray the atomized urea solution outward over a large range.

[0039] Furthermore, the blocking block 102 a - 1 a can stabilize the installation of the inner core 201 and prevent the inner core 201 from moving circumferentially within the nozzle 101 .

[0040] A separation ring 102a-2a is provided on the inner wall of the spraying section 102a-2. The separation ring 102a-2a separates the liquid spraying cavity C into an atomizing cavity C1 and a spraying cavity C2. The atomizing cavity C1 and the spraying cavity C2 are connected via a connecting hole 102a-2a1 provided in the middle of the separation ring 102a-2a.

[0041] Reference Figure 3, wherein the right side of the partition ring 102a-2a is the atomization chamber C1, and the left side is the spraying chamber C2. Furthermore, the right end face of the partition ring 102a-2a is perpendicular to the axis of the nozzle 101, which can prevent the escape of gas and solution to the greatest extent; and the left end face of the partition ring 102a-2a is inclined and perpendicular to the inner wall of the spraying section 102a-2, which increases the capacity of the spraying chamber C2, reduces the path length of the connecting hole 102a-2a1, and accelerates the discharge speed of the atomized urea solution.

[0042] The outer wall of the spraying section 102a-2 is also provided with a plurality of groups of spraying holes 102a-2b at equal intervals, and the spraying holes 102a-2b are connected to the spraying cavity C2.

[0043] Furthermore, the spray holes 102a-2b preferably adopt a cylindrical hole structure, which can ensure that the atomized solution is discharged quickly.

[0044] Example 2

[0045] Reference Figure 1 to Figure 7 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the inner core 201 includes a fixed section 201a and a gas transmission section 201b coaxially fixed at its end; the outer diameter of the fixed section 201a is equal to the inner diameter of the liquid passage A. At this time, the fixed section 201a can be completely sealed and inserted into the liquid passage A, which can prevent the inner core 201 from tilting in the liquid passage A. It should be noted that in order to improve the airtightness, a plurality of sealing rings can be set on the outer wall of the fixed section 201a to prevent air leakage.

[0046] The fixed section 201a can be coaxially slidably inserted into the liquid passage A; the outer diameter of the gas transmission section 201b is smaller than the inner diameter of the liquid passage A, and the gas passage B is located between the outer wall of the gas transmission section 201b and the inner wall of the liquid passage A.

[0047] Among them, since the gas passage B is relatively thin, there is a gap between it and the inner wall of the liquid passage A, and this gap is the gas passage B. The gas passage B provides a flow path for the high-pressure gas.

[0048] Several groups of spiral plates 201b-1 are equidistantly fixedly connected to the outer wall of the gas transmission section 201b, spiral gas grooves 201b-1a are formed between the spiral plates 201b-1, and several groups of adjustment holes 201b-1b are opened at the bottom of the spiral gas groove 201b-1a on one side close to the fixed section 201a.

[0049] The regulating hole 201b-1b is opened along the axial direction of the gas transmission section 201b, and the spiral plate 201b-1 can be placed in the gas passage B in a coordinated manner.

[0050] Reference Figure 4Furthermore, in this embodiment, the spiral plate 201b-1 is preferably provided with eight groups, and the spiral air grooves 201b-1a form eight groups accordingly, that is, the spiral plate 201b-1 divides the air passage B into eight groups of spiral air grooves 201b-1a.

[0051] A connecting groove 201a-1 is formed between the spiral plate 201b-1 and the fixed section 201a. The connecting groove 201a-1 is connected to a plurality of groups of spiral gas grooves 201b-1a, and the air supply pipe 101b corresponds to the connecting groove 201a-1.

[0052] During use, the high-pressure gas flowing into the air supply pipe 101b enters the eight groups of spiral air grooves 201b-1a through the connecting groove 201a-1, and the direction of the spiral plate 201b-1 is changed, so that the originally chaotic gas is combed into eight groups of rotating airflows and flows toward the spray cap 102.

[0053] A liquid inlet hole 201a-2 is opened in the middle of the fixed section 201a, and an adjustment slide 201b-2 is opened in the middle of one end of the gas transmission section 201b close to the fixed section 201a. The adjustment slide 201b-2 is connected to the liquid inlet hole 201a-2, and the adjustment hole 201b-1b connects the adjustment slide 201b-2 and the gas passage B.

[0054] During use, a small amount of urea solution can flow from the regulating slide 201b-2 through the regulating hole 201b-1b, and finally enter the spiral air groove 201b-1a, and be initially atomized with the airflow in the spiral air groove 201b-1a.

[0055] An external expansion hole 201b-3 is also provided in the middle of one end of the gas transmission section 201b away from the fixed section 201a. The external expansion hole 201b-3 is connected to the regulating slide 201b-2 through the liquid hole 201b-4. At this time, the urea solution in the regulating slide 201b-2 can enter the external expansion hole 201b-3 and the atomization chamber C1, and impact with the high-pressure gas to achieve atomization.

[0056] The self-adjusting member 202 includes a liquid cylinder 202a and baffles 202b and plug posts 202c fixed at both ends thereof. A plurality of groups of first through holes 202a-1 are equidistantly formed on the outer wall of the liquid cylinder 202a.

[0057] A second through hole 202b-1 is provided in the middle of the baffle 202b, and a first spring T1 is fixed to one side of the baffle 202b close to the liquid cylinder 202a. A mounting ring 202b-2 is fixed to the end of the first spring T1, and the mounting ring 202b-2 is fixed to the side wall of the adjusting slide 201b-2.

[0058] During use, the urea solution enters the regulating slide 201b-2 from the liquid inlet 201a-2, then passes through the second perforation 202b-1, enters the liquid cylinder 202a, and finally enters the regulating slide 201b-2 on the other side of the baffle 202b from the first perforation 202a-1.

[0059] A sealing plate 202b-3 is also fixed to the outer wall of the baffle 202b, and the sealing plate 202b-3 cooperates to block the adjustment hole 201b-1b. A cross push ring 202c-1 is also fixed to the end of the plug column 202c, and the cross push ring 202c-1 can be slidably inserted into the liquid hole 201b-4.

[0060] Reference Figure 7 During use, if the flow rate or flow of the urea solution in the adjusting slide 201b-2 is small, the first spring T1 is in a naturally straightened state. At this time, the sealing plate 202b-3 can completely cover the surrounding adjusting holes 201b-1b, and the urea solution will only flow from the liquid through hole 201b-4 into the outer expansion hole 201b-3 and the atomization chamber C1.

[0061] Furthermore, if the flow rate or flow rate of the urea solution in the regulating slide 201b-2 is relatively large, the baffle 202b is impacted by the urea solution, the first spring T1 contracts, the sealing plate 202b-3 moves, and the regulating hole 201b-1b is gradually exposed. At this time, a small amount of urea solution will enter the spiral gas groove 201b-1a from the regulating hole 201b-1b, and initially collide with the gas in the spiral gas groove 201b-1a to be atomized, while a large amount of urea solution still flows from the liquid hole 201b-4 into the outer expansion hole 201b-3 and the atomization chamber C1.

[0062] Furthermore, the urea solution flowing out of the liquid hole 201b-4 collides with the gas-liquid urea flowing out of the spiral gas groove 201b-1a again, hits the separation ring 102a-2a, and finally achieves complete fusion, and then enters the spray chamber C2 from the connecting hole 102a-2a1, and is sprayed out from the spray hole 102a-2b in a mist state.

[0063] The remaining structures are the same as those of Example 1.

[0064] Example 3

[0065] Reference Figure 1 to Figure 7 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that it provides a high-efficiency atomizing nozzle maintenance method, which is applicable to the high-efficiency atomizing nozzle in the above embodiment, and includes the following steps:

[0066] When inspecting the nozzle, first turn off the liquid supply unit and the air supply unit, and disconnect the atomizing nozzle from the liquid supply unit and the air supply unit.

[0067] At this point, the high-pressure gas and urea solution supplies are disconnected, and the nozzle can be safely disassembled and removed from the mounting bracket.

[0068] Furthermore, the liquid supply pipe 101a and the spray cap 102 at both ends of the nozzle 101 are removed, and the inner core 201 is pulled out, and the inner cavity of the nozzle 101 and the inner cavity of the inner core 201 are flushed with a high-pressure water gun. After the flushing is completed, the atomizing nozzle is reassembled.

[0069] In this embodiment, the spray cap 102 is preferably screwed to the spray pipe 101, and the liquid supply pipe 101a is fixed to the spray pipe 101 by bolts, so as to ensure the sealing of the connection.

[0070] Furthermore, when flushing with a high-pressure water gun, it should be ensured that the space inside the adjustment slide 201b-2 is also completely flushed. After completion, it can be reinstalled.

[0071] During installation, the inner core 201 is first inserted into the nozzle 101, then the liquid supply pipe 101a is connected and fixed, and finally the spray cap 102 is installed.

[0072] After the installation is completed, the air supply pipe 101b can be connected to the air supply unit, and then the air supply unit can be opened to blow air into the nozzle 101. Since the adjustment slide 201b-2 is connected to the internal space of the nozzle 101 and the spray cap 102, the gas will spray the residual moisture in the nozzle from the opening of the liquid supply pipe 101a and the spray hole 102a-2b to ensure internal dryness. Finally, the liquid supply pipe 101a can be installed and connected to the liquid supply unit.

[0073] The present invention has a simple structure and is easy to install, greatly reduces the difficulty of maintenance, and can also realize the function of adjusting the atomization efficiency according to the flow rate of the urea solution.

[0074] The remaining structure is the same as that of Example 2.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A high-efficiency atomizing nozzle, characterized in that: include, The spray head assembly (100) comprises a spray pipe (101) and a spray cap (102) fixed at one end thereof, wherein a liquid passage (A) is provided in the spray pipe (101); The atomizing assembly (200) comprises an inner core (201) and a self-adjusting member (202) arranged inside the inner core, wherein the inner core (201) is placed in a liquid passage (A) and an air passage (B) is formed between the inner core (201) and the inner wall of the nozzle (101).

2. The high-efficiency atomizing nozzle according to claim 1, characterized in that: A liquid supply pipe (101a) is sealed and fixed to one end of the nozzle (101) away from the nozzle cap (102), and the liquid supply pipe (101a) coincides with the axis of the nozzle (101) and the liquid passage (A); The nozzle (101) is also fixedly connected to an air supply pipe (101b) near the side wall of the liquid supply pipe (101a), and the air supply pipe (101b) is in communication with the liquid passage (A).

3. The high-efficiency atomizing nozzle according to claim 2, characterized in that: A liquid spraying cavity (C) is provided in the spray cap (102), and the spray cap (102) comprises a connecting section (102a-1) and a spraying section (102a-2) fixed at an end thereof; A plurality of groups of barrier blocks (102a-1a) are fixed at equal intervals on the inner wall of the connection between the connection section (102a-1) and the spraying section (102a-2); The connecting section (102a-1) is threadedly sleeved on an end of the nozzle (101) away from the liquid supply pipe (101a), and the blocking block (102a-1a) is in abutment with the end of the nozzle (101).

4. The high-efficiency atomizing nozzle according to claim 3, characterized in that: The inner wall of the spraying section (102a-2) is provided with a separation ring (102a-2a), and the separation ring (102a-2a) separates the liquid spraying cavity (C) into an atomizing cavity (C1) and a spraying cavity (C2), and the atomizing cavity (C1) and the spraying cavity (C2) are connected through a connecting hole (102a-2a1) provided in the middle of the separation ring (102a-2a); The outer wall of the spraying section (102a-2) is also provided with a plurality of groups of spraying holes (102a-2b) at equal intervals, and the spraying holes (102a-2b) are connected to the spraying chamber (C2).

5. The high-efficiency atomizing nozzle according to any one of claims 2 to 4, characterized in that: The inner core (201) comprises a fixed section (201a) and a gas transmission section (201b) coaxially fixed at the end thereof; The outer diameter of the fixed section (201a) is equal to the inner diameter of the liquid passage (A), and the fixed section (201a) can be coaxially slidably inserted into the liquid passage (A); The outer diameter of the gas transmission section (201b) is smaller than the inner diameter of the liquid passage (A), and the gas passage (B) is located between the outer wall of the gas transmission section (201b) and the inner wall of the liquid passage (A).

6. The high-efficiency atomizing nozzle according to claim 5, characterized in that: The outer wall of the gas transmission section (201b) is fixedly connected with a plurality of groups of spiral plates (201b-1) at equal intervals, a spiral gas groove (201b-1a) is formed between the spiral plates (201b-1), and a plurality of groups of adjustment holes (201b-1b) are also provided at the bottom of the spiral gas groove (201b-1a) on one side close to the fixed section (201a); The regulating hole (201b-1b) is opened along the axial direction of the gas transmission section (201b), and the spiral plate (201b-1) can be placed in the gas passage (B).

7. The high-efficiency atomizing nozzle according to claim 6, characterized in that: A connecting groove (201a-1) is formed between the spiral plate (201b-1) and the fixed section (201a), the connecting groove (201a-1) is connected to a plurality of groups of spiral gas grooves (201b-1a), and the air supply pipe (101b) corresponds to the connecting groove (201a-1) in position.

8. The high-efficiency atomizing nozzle according to claim 6 or 7, characterized in that: A liquid inlet hole (201a-2) is provided in the middle of the fixed section (201a); an adjusting slideway (201b-2) is provided in the middle of one end of the gas transmission section (201b) close to the fixed section (201a); the adjusting slideway (201b-2) is communicated with the liquid inlet hole (201a-2), and the adjusting hole (201b-1b) connects the adjusting slideway (201b-2) and the gas passage (B); An external expansion hole (201b-3) is also provided in the middle of one end of the gas transmission section (201b) away from the fixed section (201a), and the external expansion hole (201b-3) is connected to the regulating slideway (201b-2) through the liquid hole (201b-4).

9. The high-efficiency atomizing nozzle according to claim 8, characterized in that: The self-adjusting member (202) comprises a liquid cylinder (202a) and baffles (202b) and plug posts (202c) fixed at two ends thereof, and a plurality of groups of first through holes (202a-1) are equidistantly formed on the outer wall of the liquid cylinder (202a); A second through hole (202b-1) is provided in the middle of the baffle (202b); a first spring (T1) is fixed to a side of the baffle (202b) close to the liquid cylinder (202a); a mounting ring (202b-2) is fixed to an end of the first spring (T1); and the mounting ring (202b-2) is fixed to a side wall of the adjusting slideway (201b-2); A sealing plate (202b-3) is also fixed to the outer wall of the baffle (202b), and the sealing plate (202b-3) cooperates to block the adjustment hole (201b-1b). A cross push ring (202c-1) is also fixed to the end of the plug post (202c), and the cross push ring (202c-1) can be slidably inserted into the liquid hole (201b-4).

10. A high-efficiency atomizing nozzle maintenance method, characterized in that: Suitable for the high-efficiency atomizing nozzle as claimed in any one of claims 2 to 9, comprising: When inspecting the nozzle, first turn off the liquid supply unit and the air supply unit, and disconnect the atomizing nozzle from the liquid supply unit and the air supply unit; The liquid supply pipe (101a) and the spray cap (102) at both ends of the spray pipe (101) are removed, and the inner core (201) is pulled out. The inner cavity of the spray pipe (101) and the inner cavity of the inner core (201) are flushed with a high-pressure water gun. After the flushing is completed, the atomizing nozzle is reassembled; During installation, the inner core (201) is first inserted into the spray pipe (101), then the liquid supply pipe (101a) is connected and fixed, and finally the spray cap (102) is installed.

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