Double-gas automatic adjustable atomizing nozzle

Abstract

The application relates to a double-gas automatic adjustable atomizing nozzle, which comprises a main body block, a negative pressure air inlet, an angle-adjusting air inlet and a liquid inlet are arranged on the main body block, a liquid inlet pipeline is coaxially arranged at the bottom end of the main body block, the liquid inlet is communicated with the liquid inlet pipeline, a spraying part is fixedly connected to the bottom end of the main body block, a through hole is vertically arranged on the top surface of the spraying part, a negative pressure air channel is formed between the liquid inlet pipeline and the inner side wall of the through hole, the negative pressure air inlet is communicated with the negative pressure air channel, the bottom surface of the liquid inlet pipeline is flush with the bottom surface of the negative pressure air channel, an angle-adjusting air channel is vertically arranged outside the negative pressure air channel, the angle-adjusting air inlet is communicated with the angle-adjusting air channel, the angle-adjusting air channel is closed with the negative pressure air channel, and the outlet of the angle-adjusting air channel is obliquely arranged towards the axis of the liquid inlet pipeline. The application has the advantages of convenient automatic adjustment of the spraying angle and adaptation to different use conditions.

Description

Technical Field

[0001] The present application relates to the technical field of nozzles, and in particular to a dual-gas automatically adjustable atomizing nozzle. Background Art

[0002] Atomizing nozzles are devices that spray liquids into atomized form, evenly suspending them in the air. Atomizing nozzles effectively increase the contact area between the liquid and the surrounding medium, making them widely used in fields such as dust removal, combustion, and sandblasting. Atomizing nozzles can be categorized into two types based on their atomization principle: mechanical atomization and dielectric atomization. Mechanical atomization relies on a high-speed jet generated by a pressure differential to atomize the liquid. Dielectric atomization generally uses a gas at a certain pressure to create a high-pressure airflow, which breaks up the low-pressure sprayed liquid and achieves atomization.

[0003] The atomization uniformity of medium atomization is better than that of mechanical atomization. The external mixing nozzle is commonly used in the existing related technologies for medium atomization. The specific structure and working principle are as follows: Figure 1 As shown: high-pressure air flow is blown out from the gas channel 200, and liquid is sprayed out from the liquid channel 100. The gas and liquid cross-collide at the outlet, and the liquid is atomized after being collided by the high-speed gas.

[0004] However, the atomization range formed by the structure of this type of medium atomization has been determined during the nozzle production process, that is, the shape and range of the spray formation are basically fixed, and the most common ones are fan-shaped, solid cone-shaped, etc. Although increasing or decreasing the gas pressure in this atomization structure can slightly change the range of the spray coverage, the change is very small and unstable. Because after increasing the gas pressure, the liquid along the axis of the liquid column can be easily over-broken, causing the liquid to be sprayed to the circumference and the center of the spray to be hollow; if the gas pressure is reduced, it is easy for the central part of the liquid column to not be completely broken up, which makes it difficult to form a spray in the center of the spray, resulting in a solid defect in the center of the spray, which greatly reduces the uniformity of the spray formation.

[0005] Therefore, in response to the above situation, the inventors believe that the spray range of the atomizing nozzle in the existing related technology cannot be well adjusted, the uniformity of the spray formation is insufficient, and it is difficult to adapt to different operating conditions, such as in the automated batch spraying of objects with different surface areas, or adjusting different spray ranges in the combustion chamber to adapt to combustion requirements, etc., which makes it more troublesome to use and has general applicability. Summary of the Invention

[0006] In order to solve the above technical problems, the present application provides a dual-gas automatically adjustable atomizing nozzle, which has the advantage of automatically adjusting the nozzle atomization angle and thus changing the atomization radiation range, and the formed spray is more uniform and can better adapt to different operating conditions.

[0007] To achieve the above object, the technical solution of the present invention is as follows:

[0008] A dual-gas automatically adjustable atomizing nozzle, comprising:

[0009] A main body block is provided with a liquid inlet for introducing liquid, a negative pressure air inlet for siphoning the liquid, and an angle adjustment air inlet for introducing angle adjustment gas. A liquid inlet pipe is coaxially provided at the bottom end of the main body block, and the liquid inlet is connected to the liquid inlet pipe;

[0010] An injection portion connected to the bottom end of the main block, wherein a through hole is vertically opened on the top surface of the injection portion, a negative pressure air channel is formed between the outer wall of the liquid inlet pipe and the inner wall of the through hole, the negative pressure air inlet is connected to the negative pressure air channel, and the bottom surface of the liquid inlet pipe is flush with the bottom surface of the negative pressure air channel;

[0011] At least two angle-adjustable air inlet channels are vertically opened on the ejection portion, the angle-adjustable air inlet is connected to the angle-adjustable air inlet channel, the two angle-adjustable air inlet channels are symmetrically arranged about the axis of the negative-pressure air channel, and the angle-adjustable air inlet channel is sealed from the negative-pressure air channel;

[0012] The angle-adjustable air inlet channel is connected to a first air outlet and a second air outlet from top to bottom. The axes of the first air outlet and the second air outlet are inclined toward the axis of the liquid inlet pipe. The extension line of the first air outlet and the extension line between the second air outlet are intersected, and the intersection is located on the axis of the liquid inlet pipe.

[0013] By adopting the above technical solution, when using the nozzle, the liquid to be atomized is introduced from the liquid inlet, the gas for regulating the flow is introduced from the negative pressure air inlet, and the gas for regulating the angle is introduced into the angle regulating air inlet; the negative pressure gas is ejected at high speed from the outlet of the negative pressure air channel, thereby forming a cylindrical negative pressure area around the outlet of the liquid inlet pipe, forming a siphon effect on the liquid, so that the liquid is dispersed into small droplets in all directions, and the siphon effect of the liquid can be controlled by regulating the flow of the negative pressure gas, thereby regulating the liquid flow; the angle regulating gas is used to perform high-pressure blows toward the ejected liquid, and the gas ejected from the first air outlet and the second air outlet is first ejected from the negative pressure air channel. The formed air curtain collides with the negative pressure air for the first time, which initially breaks up and atomizes the small droplets produced by the siphon. Then the angle-adjusting gas ejected from the first air outlet, the angle-adjusting gas ejected from the second air outlet, the negative pressure air, and the liquid column collide for the second time at the axis of the liquid column. The second collision forms a more uniform spray of fine particles, which makes the angle range of atomization wider and the atomization effect more uniform. When it is necessary to increase the spray coverage, it is only necessary to increase the input amount of the angle-adjusting gas. The intensity of the first and second collisions is higher, thereby increasing the coverage of the spray, and there will be no interruption of flow in the center of the spray or hollowness in the center of the spray. In summary, the flow rate and the angle of the spray can be automatically adjusted by adjusting the air intake of the angle-adjusting gas, realizing an efficient and automatic adjustment process, which effectively adapts to the needs of different working conditions.

[0014] As a preferred solution of the present application, the angle between the two first air outlet holes is 110 degrees, and the angle between the two second air outlet holes is 120 degrees.

[0015] Preferably, the injection portion and the main body block are detachably connected.

[0016] By adopting the above technical solution, the injection part can be disassembled from the main body block for replacement or maintenance. It is convenient when unexpected failures such as blockage occur during use, or when the injection part needs to be replaced after a period of use, which effectively improves the applicability of the nozzle.

[0017] Preferably, a fixing ring is vertically fixed on the bottom surface of the main block, the outer wall of the fixing ring is provided with an external thread, the top of the outer wall of the injection part is horizontally integrated with a clamping ring, a threaded sleeve is threadedly connected to the fixing ring, and the bottom end of the threaded sleeve is horizontally provided with a clamping protrusion for limiting the clamping ring.

[0018] By adopting the above technical solution, a specific structure is provided in which the injection part can be detachably connected to the main block. When in use, the axis of the injection part is first aligned with the axis of the liquid inlet pipe, and then the top of the threaded sleeve is vertically coaxially aligned with the fixing ring, and then the threaded sleeve is screwed onto the outer wall of the fixing ring. This connection method is relatively simple, and the threaded connection also improves the sealing, avoids gas leakage, and is easy to use.

[0019] Preferably, the top end of the outer side wall of the liquid inlet pipe is provided with an external thread, the liquid inlet pipe is coaxially threadedly connected to the main body block, and a sealing plate is also horizontally extended on the circumferential side wall of the liquid inlet pipe, the bottom end of the sealing plate is provided with a first inclined sealing surface, and the top end of the injection part is provided with a second inclined sealing surface for sealing with the first inclined sealing surface, the upper surface of the sealing plate is provided with an annular separation groove, the separation groove is vertically clamped with an annular separation plate, and the sealing plate is vertically provided with a negative pressure hole for negative pressure air to pass through.

[0020] By adopting the above technical solution, the injection part, the liquid inlet pipe and the main body block can be disassembled from each other, which is convenient for later cleaning, replacement and maintenance. Furthermore, the partition between the angle-adjusting gas and the negative pressure gas is set as a detachable structure. When the partition plate is not sealed enough due to friction, the partition plate can be easily replaced to ensure a strict separation function between the two gases, thereby better realizing the spray function with adjustable angle and flow rate.

[0021] Preferably, an adjustment cavity is vertically opened on the top surface of the main body block, and a liquid sealing ejector pin is vertically penetrated through the bottom surface of the adjustment cavity. The diameter of the liquid sealing ejector pin is greater than or equal to the diameter of the liquid inlet pipe outlet. An adjustment plate is horizontally provided at the end of the liquid sealing ejector pin away from the liquid inlet pipe outlet. The peripheral side of the adjustment plate is sealed with the inner side wall of the adjustment cavity. An adjustment air inlet hole is opened on the main body block, and the adjustment air inlet hole is connected with the adjustment cavity. A limit assembly for limiting the position of the liquid sealing ejector pin is provided on the top surface of the main body block.

[0022] By adopting the above technical solution, a sealed space is formed between the adjustment plate and the adjustment chamber. After gas is introduced into the adjustment chamber through the adjustment air inlet hole, the adjustment plate can be driven to rise and fall in the vertical direction, thereby driving the end of the ejector pin to rise and fall vertically, thereby controlling the contact area between the end of the ejector pin and the outlet of the liquid inlet pipe, thereby controlling the flow rate of the liquid sprayed out, and the limit assembly is used to limit the position of the liquid sealing ejector pin, thereby controlling the upper limit of the liquid flow rate outflow. When in use, the liquid sealing ejector pin is usually limited by the limit assembly to seal the outlet of the liquid inlet pipe, and the nozzle is in a normally closed state. Gas is introduced into the adjustment air inlet hole, and the gas fills the adjustment chamber, which can drive the adjustment plate to rise and fall in the vertical direction, thereby driving the liquid sealing ejector pin to rise and fall vertically, causing the outlet of the liquid inlet pipe to leak, thereby achieving liquid flow regulation.

[0023] Preferably, the limiting component includes:

[0024] An auxiliary block is fixedly connected to the top surface of the main block, and a limiting cavity is formed on the bottom surface of the auxiliary block coaxially with the adjustment cavity;

[0025] And a limit spring is arranged in the limit cavity, and the bottom end of the limit spring abuts against the top surface of the adjustment plate.

[0026] By adopting the above technical solution, a specific structure of a limit assembly is proposed. When the nozzle is not in use, the limit spring relies on its own elastic force to tightly clamp the bottom end of the sealing ejector pin into the outlet of the liquid inlet pipe, thereby achieving a normally closed state.

[0027] Preferably, an adjustment component for adjusting the vertical position of the sealing ejector pin is provided at the top of the auxiliary body block, and the adjustment component includes a sleeve vertically arranged on the top surface of the auxiliary body block, an adjustment column arranged with a vertical thread passing through the sleeve, and a knob fixedly connected to the adjustment column, and the bottom end of the adjustment column is arranged against the adjustment plate.

[0028] By adopting the above technical solution, when air is rushed into the regulating chamber, because the spring is elastically deformed, as the gas continues to rush in, the spring is compressed more and more, thereby making the liquid flow rate larger and larger, so it is impossible to accurately limit the maximum value of the liquid flow rate. Now, the regulating component can be used to accurately limit the position of the highest point of the sealing ejector pin, thereby limiting the maximum flow rate of liquid flowing out of the bottom end of the sealing ejector pin, so that the size of the regulating flow rate can be determined according to the situation, and the gas rushed into the air inlet hole can be assisted in adjusting, so that the amount of liquid converted into spray can be more accurately controlled, thereby improving the convenience of use.

[0029] Preferably, the auxiliary block is further provided with an exhaust hole, and the exhaust hole is connected to the limiting cavity.

[0030] By adopting the above technical solution, it is ensured that no gas is stored in the limiting cavity, so that when air is rushed into the adjustment cavity, the resistance of the limiting cavity is avoided, making the adjustment process smoother and improving the use effect.

[0031] Preferably, the main body block is further provided with a liquid outlet, and the liquid outlet is communicated with the liquid inlet pipe.

[0032] By adopting the above technical solution, when liquid is introduced into the main body block, the liquid is passed through the liquid inlet. After the liquid inlet pipe is filled, the liquid can be directly discharged from the liquid outlet, so that it can be directly connected to the liquid inlet of another nozzle, thereby realizing that multiple nozzles share one liquid inlet, so that multiple nozzles can be used in series, which greatly improves the convenience of use.

[0033] In summary, this application includes at least one of the following beneficial technical effects:

[0034] 1. By using siphon to pressurize and drain the liquid, the flow rate of the liquid outflow can be controlled by adjusting the flow rate of the negative pressure air, thereby controlling the flow rate of the spray. The negative pressure air can also initially disperse the liquid column, improving the uniformity of the spray. Furthermore, the first and second air outlet holes are arranged to intersect, so that the angle-adjusted gas first collides with the negative pressure gas, and then collides with each other for the second time, which significantly improves the uniformity of the spray formation and increases the amount of angle-adjusted gas. Since there are more colliding gas and liquid, the collision force is stronger, so the angle of the spray is also wider, and there will be no hollow or solid phenomenon.

[0035] 2. The spray part is detachably connected to the main body, and the spray part itself is disassembled, making it easy to replace and maintain the spray part, ensuring the sealing and circulation of different air, and improving the spray effect;

[0036] 3. By setting up a sealing ejector pin and an adjusting chamber, the nozzle is always in a closed state when no gas is introduced into the adjusting chamber. The nozzle can be opened and closed intermittently by introducing gas into the adjusting chamber, thus adapting to different production needs in a more intelligent and automated manner.

[0037] 4. By setting the adjustment component and the sealing ejector pin, the liquid flow can also be regulated. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 paying any creative work.

[0039] Figure 1 It is a background technology diagram;

[0040] Figure 2 It is a schematic diagram of the overall structure of the atomizing nozzle;

[0041] Figure 3 This is a schematic diagram of the overall structure of the atomizing nozzle from another perspective;

[0042] Figure 4 It is a cross-sectional view mainly used to show the internal structure of the atomizing nozzle;

[0043] Figure 5 yes Figure 4 A partial enlarged view of part A;

[0044] Figure 6 It is a schematic diagram of the explosion structure of the atomizing nozzle;

[0045] Figure 7It is a schematic diagram for showing the structure of the injection unit.

[0046] Explanation of reference numerals: 1. Main block; 1a. Liquid inlet; 1b. Negative pressure air inlet; 1c. Adjustable angle air inlet; 1d. Liquid inlet pipe; 2. Injection portion; 22. Adjustable angle air inlet channel; 221. First air outlet; 222. Second air outlet; 3. Negative pressure air channel; 5. Fixing ring; 6. Snap ring; 7. Threaded sleeve; 71. Snap-fit ​​ridge; 8. Sealing plate; 81. First inclined sealing surface; 9. Sealing ring; 91. Second inclined sealing surface; 10. Partition groove; 11. Partition plate; 12. Adjustment chamber ; 13. Liquid sealing ejector pin; 14. Adjusting plate; 15. Adjusting air inlet hole; 16. Limiting assembly; 161. Auxiliary block; 1611. Limiting cavity; 162. Limiting spring; 17. Adjusting assembly; 171. Sleeve; 172. Adjusting column; 173. Knob; 1731. Connecting rod; 18. Exhaust hole; 19. Liquid outlet; 20. Countersunk bolt; 24. Mounting hole; 25. Buffer spring; 26. Through hole; 27. Dynamic seal; 28. Threaded sealing sleeve; 29. ​​Protrusion; 30. Mosaic cavity. DETAILED DESCRIPTION

[0047] The following is combined with Figure 2-7 This application is described in further detail.

[0048] Reference Figure 2 , is a dual-gas automatic adjustable atomizing nozzle disclosed in an embodiment of the present application. This dual-gas automatic adjustable atomizing nozzle includes a vertically arranged rectangular main body block 1, which is mainly used for passing gas and liquid, and has multiple channels for passing gas or liquid inside; a sub-body block 161 is connected to the top of the main body block 1 by a countersunk bolt 20, that is, a detachable connection is formed between the sub-body block 161 and the main body block 1; a sleeve 171 is vertically and coaxially provided on the upper surface of the sub-body block 161, and a knob 173 is provided on the outer wall of the sleeve 171, and the knob 173 can move vertically along the outer wall of the sleeve 171 while rotating; a spray part 2 is detachably connected to the bottom of the main body block 1, and liquid or gas enters the spray part 2 below from the main body block 1, and finally collides to form a spray, and a detachable connection is formed between the spray part 2 and the main body block 1 by a threaded sleeve 7.

[0049] Reference Figure 2 and Figure 3The main body block 1 is provided with a plurality of holes for ventilation or liquid. For ease of description, the four side surfaces along the circumference of the main body block 1 are designated as the q-surface, w-surface, e-surface, and r-surface, respectively. The q-surface is opposite the e-surface, and the w-surface is opposite the r-surface. The q-surface has an adjustable air inlet 15, a liquid inlet 1a for liquid entry, and a liquid outlet 19 for liquid circulation. The w-surface has an angle-adjustable air inlet 1c for adjusting the spray angle and coverage. The e-surface has two mounting holes 24 for mounting the main body block 1 on other supports. The r-surface has a negative pressure air inlet 1b for siphoning liquid.

[0050] Reference Figure 4 and Figure 5 The bottom surface of the main block 1 is coaxially threaded with a liquid inlet pipe 1d. The liquid inlet 1a and liquid outlet 19 are both connected to the liquid inlet pipe 1d. The purpose of this design is that after the liquid from the liquid inlet 1a fills the liquid inlet pipe 1d, it can flow out of the liquid outlet 19. The liquid outlet 19 can then be directly connected to the liquid inlet 1a of another main block 1. This is more convenient when multiple such atomizing nozzles are used in series, and there is no need to configure a liquid inlet pipe on each main block 1. The bottom end of the liquid inlet pipe 1d is narrowed to a small hole, and the liquid is sprayed out from this small hole.

[0051] Reference Figure 6 The liquid inlet pipe 1d is cylindrical as a whole, and a thread is provided on the outer wall of the top end of the liquid inlet pipe 1d, which can be screwed into the bottom of the main block 1. A sealing plate 8 is also horizontally integrated on the outer wall of the liquid inlet pipe 1d, and a first inclined surface 81 is provided on the bottom surface of the sealing plate 8. A plurality of through holes 26 are vertically penetrated on the sealing plate 8 around its own axis. These through holes 26 are for allowing negative pressure air to pass through; a separation groove 10 is also vertically opened on the upper surface of the sealing plate 8.

[0052] Reference Figure 5 and Figure 6 A partition plate 11 is vertically embedded in the partition groove 10. When the liquid inlet pipe 1d is threadedly connected to the main block 1 and tightened, the top surface of the partition plate 11 is just against the bottom surface of the main block 1, and a certain gap is left between the inner wall of the fixing ring 5 and the outer wall of the sealing plate 8. This gap allows the gas with adjusted angle to pass in.

[0053] Reference Figure 5 and Figure 7The injection part 2 is cylindrical as a whole, and a through hole is coaxially opened downward on its upper surface. A negative pressure air channel 3 is formed between the outer wall of the liquid inlet pipe 1d and the inner wall of the through hole. The negative pressure air channel 3 shrinks to a small hole at the bottom, and the negative pressure air used to siphon the liquid is ejected from the small hole. When installed and used, the bottom end of the liquid inlet pipe 1d is located in the negative pressure air channel 3, and the bottom end of the injection part 2 is flush with the outlet of the negative pressure air channel 3, so that the negative pressure air is ejected in the form of a ring-shaped air curtain. When the liquid is ejected from the outlet of the injection part 2, it is subjected to the siphon effect of the negative pressure air. Since the pressure is low where the flow rate is high, the liquid column will disperse toward the air curtain formed by the negative pressure air, thereby preliminarily breaking up the liquid.

[0054] Reference Figure 5 and Figure 7 Two angle-adjustable air inlet channels 22 are vertically defined outside the negative-pressure air channel 3 of the ejection section 2. These channels are symmetrical about the axis of the ejection section 2. A first air outlet hole 221 and a second air outlet hole 222 are defined at the bottom end of each angle-adjustable air inlet channel 22. Both the first air outlet hole 221 and the second air outlet hole 222 are tilted toward the axis of the ejection section 2, and the first and second air outlet holes on the same side intersect at the axis of the liquid inlet pipe 1d. Specifically, in this embodiment, the angle between the two first air outlet holes 221 is set at 110 degrees, and the angle between the two second air outlet holes is 120 degrees.

[0055] Reference Figure 5 The angle-adjusted gas is used to perform high-pressure impact on the ejected liquid. The gas ejected from the first air outlet 221 and the second air outlet 222 first collides with the negative-pressure air at the air curtain formed by the negative-pressure air, breaking up and atomizing the small droplets produced by the siphon. Then, the angle-adjusted gas ejected from the first air outlet 221, the angle-adjusted gas ejected from the second air outlet 222, the negative-pressure air, and the liquid column collide for the second time at the axis of the liquid column. The second collision forms a more uniform spray of fine particles, making the atomization angle range wider and the atomization effect more uniform.

[0056] Continue to refer to Figure 5 and Figure 7The specific structure of the detachable connection between the injection part 2 and the main block 1 is that a fixing ring 5 is coaxially and vertically integrated with the liquid inlet pipe 1d on the bottom surface of the main block 1, and the outer wall of the fixing ring 5 is provided with an external thread. A clamping ring 6 is integrally provided on the circumferential side of the top surface of the injection part 2, and a clamping protrusion 71 is provided on the inner side wall of the bottom end of the threaded sleeve 7. A circle of sealing ring 9 is provided on the top surface of the injection part 2 along the edge of the negative pressure air channel 3, and a second inclined surface 91 is provided on the outer side of the top surface of the sealing ring 9. When the threaded sleeve 7 is tightened on the outer wall of the fixing ring 5, the first inclined surface 81 is tightly fitted with the second inclined surface 91, and the clamping protrusion 71 is clamped with the clamping ring 6. The clamping ring 6 is located on the upper surface of the clamping protrusion 71, so that the injection part 2 can be detachably connected to the main block 1, and the negative pressure air and the regulated air are separated.

[0057] Back to Figure 4 The gas used to adjust the angle enters the main block 1 from the angle adjustment air inlet 1c, then goes down into the gap between the fixing ring 5 and the partition plate 11, and then enters the angle adjustment air inlet channel 22; the air in the negative pressure air inlet 1b enters the gap between the liquid inlet pipe 1d and the partition plate 11, and then passes through the through hole 26 into the negative pressure air channel 3, and is finally ejected.

[0058] Reference Figure 6 The main body 1 also has a vertically defined regulating chamber 12, with the regulating air inlet 15 communicating with the regulating chamber 12. A liquid-sealing ejector pin 13 is provided vertically through the bottom surface of the regulating chamber 12, coaxial with the liquid inlet pipe 1d. A dynamic seal 27 is provided on the circumferential sidewall of the liquid-sealing ejector pin 13, and a threaded sealing sleeve 28 is provided above the dynamic seal 27 to prevent gas or liquid leakage when the liquid-sealing ejector pin 13 moves vertically. An adjusting plate 14 is provided horizontally at the top of the liquid-sealing ejector pin 13, with the outer wall of the adjusting plate 14 forming a sliding seal with the inner wall of the regulating chamber 12. A coaxial limiting chamber 1611 is provided at the bottom of the auxiliary body 161, with a limiting spring 162 vertically provided within the limiting chamber 1611. The auxiliary body 161 and the limiting spring 162 constitute a limiting assembly 16 for vertically limiting the liquid-sealing ejector pin 13.

[0059] Reference Figure 6Under normal conditions, the limit spring 162 relies on its own elasticity to push the sealing pin 13 downward against the outlet of the liquid inlet pipe 1d, so that the end of the sealing pin 13 seals the outlet of the liquid inlet pipe 1d, thereby maintaining a normally closed state. The introduction of regulating gas into the regulating chamber 12 drives the regulating plate 14 to move vertically upward, thereby opening the outlet of the liquid inlet pipe 1d. A vent 18 is also provided in the auxiliary block 2, which communicates with the limit chamber 1611. This design prevents gas from accumulating in the limit chamber 1611, which would prevent the air in the limit chamber 1611 from being exhausted when air is introduced into the regulating chamber 12, thereby blocking the regulating plate 14.

[0060] Reference Figure 6 The auxiliary block 161 is also provided with an adjustment assembly 17 for adjusting the upper limit position of the sealing ejector pin 13. The adjustment assembly 17 includes a sleeve 171 vertically arranged on the top surface of the auxiliary block 161, an adjustment column 172 provided with a vertical thread extending through the sleeve 171, and a knob 173 fixedly connected to the adjustment column 172. The bottom end of the adjustment column 172 is arranged to abut the adjustment plate 14, and the knob 173 and the adjustment column 172 are fixedly connected. Specifically, a connecting rod 1731 is vertically provided in the knob 173, and the connecting rod 1731 is fixedly connected to the adjustment column 172. Rotating the knob 173 drives the adjustment column 172 to rotate about its own axis, causing the adjustment column 172 to move downward, thereby defining the highest position of the adjustment plate 14. A protrusion 29 is provided on the top of the adjustment plate 14, and a fitting cavity 30 is provided on the bottom surface of the adjustment column 172. The protrusion 29 is engaged with the fitting cavity 30. In order to improve the stability of the knob 173 during rotation, a buffer spring 25 is provided on the outer wall of the adjustment column 172. The bottom end of the buffer spring 25 is fixedly connected to the inner wall of the sleeve 171, and the top end of the buffer spring 25 abuts against the top surface of the inner wall of the knob 173.

[0061] The implementation principle of the dual-gas automatically adjustable atomizing nozzle of the present application is as follows: when in use, the liquid to be atomized is introduced into the liquid inlet 1a, and the liquid outlet 19 is closed, and the flow-adjustable gas is introduced from the negative pressure air inlet 1b, and the angle-adjustable gas is introduced into the angle-adjustable air inlet 1c;

[0062] Negative pressure gas is ejected at high speed from the outlet of the negative pressure air channel 3, thereby forming a cylindrical negative pressure area around the outlet of the liquid inlet pipe 1d, which creates a siphon effect on the liquid, causing the liquid to disperse into small droplets in all directions. By regulating the flow rate of the negative pressure gas, the siphon effect of the liquid can be controlled, thereby adjusting the liquid flow rate.

[0063] The angle-adjusted gas is used to perform high-pressure impact on the ejected liquid. The gas ejected from the first air outlet 221 and the second air outlet 222 first collides with the negative-pressure air at the air curtain formed by the negative-pressure air for the first time, and the small droplets produced by the siphon are initially broken up and atomized. Then the angle-adjusted gas ejected from the first air outlet 221, the angle-adjusted gas ejected from the second air outlet 222, the negative-pressure air, and the liquid column collide for the second time at the axis of the liquid column. The second collision forms a more uniform spray of fine particles, making the atomization angle range wider and the atomization effect more uniform. When the spray coverage needs to be increased, it is only necessary to increase the input amount of the angle-adjusted gas. The first and second collisions are more intense, thereby increasing the coverage of the spray, and there will be no interruption in the center of the spray or hollowness in the center of the spray.

[0064] When multiple atomizing nozzles need to be connected in series, it is only necessary to open the liquid outlet 19 and connect it to the liquid inlet 1a of another atomizing nozzle.

[0065] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A dual-gas automatically adjustable atomizing nozzle, characterized in that: include: A main body block (1) is provided with a liquid inlet (1a) for introducing liquid, a negative pressure air inlet (1b) for siphoning the liquid, and an angle-adjusting air inlet (1c) for introducing angle-adjusting gas; a liquid inlet pipe (1d) is coaxially provided at the bottom end of the main body block (1), and the liquid inlet (1a) is in communication with the liquid inlet pipe (1d); A spray portion (2) connected to the bottom end of the main body block (1), a through-hole being vertically opened on the top surface of the spray portion (2), a negative pressure air passage (3) being formed between the outer wall of the liquid inlet pipe (1d) and the inner wall of the through-hole, the negative pressure air inlet (1b) being in communication with the negative pressure air passage (3), and the bottom surface of the liquid inlet pipe (1d) being flush with the bottom surface of the negative pressure air passage (3); At least two angle-adjustable air inlet channels (22) are vertically provided on the ejection portion (2), the angle-adjustable air inlet port (1c) being in communication with the angle-adjustable air inlet channel (22), the two angle-adjustable air inlet channels (22) being symmetrically arranged about the axis of the negative-pressure air channel (3), and the angle-adjustable air inlet channels (22) and the negative-pressure air channel (3) being sealed; The angle-adjustable air inlet channel (22) is connected from top to bottom with a first air outlet (221) and a second air outlet (222); the axes of the first air outlet (221) and the second air outlet (222) are both arranged to be inclined toward the axis of the liquid inlet pipe (1d); the extension lines of the two first air outlets (221) and the extension lines of the two second air outlets (222) are arranged to intersect and form intersections, and the two intersections are both located on the axis of the liquid inlet pipe (1d); The top end of the outer wall of the liquid inlet pipe (1d) is provided with an external thread, the liquid inlet pipe (1d) is coaxially threadedly connected to the main body block, and the injection portion (2) and the main body block (1) are detachably connected; a fixing ring (5) is vertically fixedly provided on the bottom surface of the main body block, the outer wall of the fixing ring (5) is provided with an external thread, and a clamping ring (6) is horizontally integrated at the top end of the outer wall of the injection portion (2), a threaded sleeve (7) is threadedly connected to the fixing ring (5), and a clamping convex edge (71) for limiting the clamping ring (6) is horizontally provided at the bottom end of the threaded sleeve (7); A sealing plate (8) is further horizontally extended on the circumferential side wall of the liquid inlet pipe (1d); a first inclined sealing surface (81) is provided at the bottom end of the sealing plate (8); a sealing ring (9) is coaxially and vertically provided on the top surface of the injection portion (2); a second inclined sealing surface (91) is provided on the top surface of the sealing ring (9) for sealingly matching the first inclined sealing surface (81); an annular separation groove (10) is provided on the upper surface of the sealing plate (8); an annular separation plate (11) is vertically clamped on the separation groove (10); One end of the gap formed between the fixing ring (5) and the partition plate (11) is in communication with the angle-adjustable air inlet (1c), and the other end is in communication with the angle-adjustable air inlet channel (22); one end of the gap between the liquid inlet pipe (1d) and the partition plate (11) is in communication with the negative pressure air inlet (1b), and the other end enters the negative pressure air channel (3) through the through hole; The included angle between the two first air outlet holes (221) is 110 degrees, and the included angle between the two second air outlet holes (222) is 120 degrees.

2. The dual-gas automatically adjustable atomizing nozzle according to claim 1, characterized in that: The top surface of the main body block (1) is vertically provided with an adjusting cavity (12), and the bottom surface of the adjusting cavity (12) is vertically penetrated by a sealing pin (13). The diameter of the sealing pin (13) is greater than or equal to the diameter of the outlet of the liquid inlet pipe (1d). An adjusting plate (14) is horizontally provided at one end of the sealing pin (13) away from the outlet of the liquid inlet pipe (1d). The peripheral side of the adjusting plate (14) is sealed with the inner side wall of the adjusting cavity (12). The main body block (1) is provided with an adjusting air inlet hole (15), and the adjusting air inlet hole (15) is communicated with the adjusting cavity (12). The top surface of the main body block (1) is provided with a limit assembly (16) for limiting the position of the sealing pin (13).

3. The dual-gas automatically adjustable atomizing nozzle according to claim 2, characterized in that: The limiting component (16) includes: A secondary body block (161) fixedly connected to the top surface of the main body block (1), wherein a limiting cavity (1611) is provided on the bottom surface of the secondary body block (161) coaxially with the regulating cavity (12); And a limiting spring (162) is arranged in the limiting cavity (1611), and the bottom end of the limiting spring (162) abuts against the top surface of the adjustment plate (14).

4. The dual-gas automatically adjustable atomizing nozzle according to claim 3, characterized in that: The top of the auxiliary block (161) is provided with an adjustment assembly (17) for adjusting the vertical position of the sealing ejector pin (13). The adjustment assembly (17) comprises a sleeve (171) vertically arranged on the top surface of the auxiliary block (161), an adjustment column (172) vertically threaded through the sleeve (171), and a knob (173) fixedly connected to the adjustment column (172). The bottom end of the adjustment column (172) is arranged to abut against the adjustment plate (14).

5. The dual-gas automatically adjustable atomizing nozzle according to claim 4, characterized in that: The auxiliary block (161) is also provided with an exhaust hole (18), and the exhaust hole (18) is connected to the limiting cavity (1611).

6. The dual-gas automatically adjustable atomizing nozzle according to claim 1, characterized in that: The main body block is also provided with a liquid outlet (19), and the liquid outlet (19) is communicated with the liquid inlet pipe (1d).

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