Atomization assembly and atomizer

Abstract

The invention discloses an atomization assembly, and relates to the technical field of atomizers, the atomization assembly comprises a stirring shaft and an atomization ring, the atomization ring fixedly sleeves the stirring shaft, an annular flow collection space is formed between the atomization ring and the stirring shaft, the stirring shaft is internally provided with a fluid channel, and the stirring shaft is provided with a feed inlet communicated with the fluid channel; the end face, away from the feeding port, of the stirring shaft is closed, a plurality of discharging holes are formed in the outer wall, opposite to the atomization ring, of the stirring shaft and communicate with the fluid channel, a plurality of atomization holes are formed in the atomization ring, and included angles are formed between the axes of the atomization holes and the tangent line of the intersection point of the atomization holes. The atomizer comprises a shell, a driving device and the atomizing assembly, the driving device is used for driving the stirring shaft to rotate, the stirring shaft penetrates through the shell and is rotationally connected with the shell, and the second end, extending out of the shell, of the stirring shaft is fixedly sleeved with an atomizing ring. The atomizer can improve the forming uniformity of atomized particles and increase the mist output of the atomizer.

Description

Technical Field

[0001] The present invention relates to the technical field of atomizers, and in particular to an atomizer assembly and an atomizer. Background Art

[0002] Atomizer is an important component of precision instruments. It uses compressed air to form a high-speed airflow through a small tube. The negative pressure generated drives the liquid or other fluid to be sprayed onto the obstruction. Under high-speed impact, the droplets splash around and become mist particles that are sprayed out from the nozzle hole. Studies have shown that the stability and uniformity of the formed particles after atomization are closely related to the size of the nozzle hole, the number of holes drilled, and the angle of the drilling.

[0003] The patent application (CN117900048A) discloses an atomizer, wherein a mist outlet is provided on the end face of the atomizer nozzle, and three protrusions are provided on the inner wall of the nozzle. After the sample solution is broken into an aerosol by the high-speed flowing carrier gas at the position of the mist outlet, it hits the three protrusions to form a mist aerosol, thereby producing a spray mist effect at the mist outlet. The device has only one mist outlet, and the mist outlet can only emit mist in a single direction, which will result in a smaller area for the sample solution to be sprayed and a lower mist output, which cannot meet the effect of uniform material discharge of the atomizer. Summary of the invention

[0004] The object of the present invention is to provide an atomizing assembly and an atomizer to solve the problems existing in the above-mentioned prior art, improve the uniformity of atomized particle formation and increase the mist output of the atomizer.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides an atomization component, comprising a stirring shaft and an atomization ring, wherein the atomization ring is fixedly sleeved outside the stirring shaft, an annular flow collecting space is formed between the atomization ring and the stirring shaft, a fluid channel is provided inside the stirring shaft, a feed port connected to the fluid channel is provided on the stirring shaft, an end face of the stirring shaft away from the feed port is closed, a plurality of discharge holes are provided on the outer wall of the stirring shaft opposite to the atomization ring, the discharge holes are connected to the fluid channel, and a plurality of atomization holes are provided on the atomization ring.

[0007] Preferably, the axis of the atomization hole and the tangent line of the intersection of the atomization hole have a first angle, and the tangent line of the intersection is the tangent line of the intersection of the axis of the atomization hole and the outer wall of the atomization ring.

[0008] Preferably, the discharge holes are of equal size and are distributed around the axis of the stirring shaft, and the distribution of the discharge holes is consistent with the distribution of the atomization holes.

[0009] Preferably, a plurality of atomization hole groups are arranged around the axis of the atomization ring, and each atomization hole group includes a plurality of atomization holes.

[0010] Preferably, the axes of the atomization holes in each group of the atomization holes are located on the same inclined plane, and the inclined plane and the axis of the atomization ring have a second angle.

[0011] Preferably, the first angle is 60°, and the second angle is 30°.

[0012] The present invention also provides an atomizer, comprising a shell, a driving device and an atomizing assembly as described in any one of the above items, wherein the output member of the driving device is fixedly connected to the first end of the stirring shaft, the driving device is used to drive the stirring shaft to rotate, the stirring shaft passes through the shell and is rotatably connected to the shell, and the atomizing ring is provided on the fixed sleeve outside the second end of the stirring shaft extending out of the shell.

[0013] Preferably, the atomizer further comprises a connecting device, wherein the connecting device is arranged below the shell, the connecting device is fixedly connected to the shell, the stirring shaft extends out of the connecting device and is rotatably connected to the connecting device, and the connecting device is used to connect the stirring shaft to a fixing member.

[0014] Preferably, the atomizer further comprises a feed pipe, which passes through the feed port and is connected to the stirring shaft.

[0015] Preferably, the connecting device includes a bearing seat and a fixed plate, the bearing seat is fixedly connected to the fixed plate, the shell is fixedly connected to the bearing seat, the stirring shaft passes through the bearing seat and the fixed plate in sequence, the stirring shaft is rotatably connected to the bearing seat, there is a gap between the stirring shaft and the fixed plate, and connecting through holes are respectively opened on both sides of the fixed plate.

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

[0017] The present invention provides an atomization assembly and an atomizer. An atomization ring is sleeved on the lower end of a stirring shaft, and a plurality of atomization holes are opened on the atomization ring. Compared with a single atomization outlet, the device can increase the atomization area of ​​a sample solution during atomization, and the atomizer can produce more atomized particles. A plurality of discharge holes are opened on the side wall of the stirring shaft, and the plurality of discharge holes discharge materials simultaneously, thereby achieving more uniform distribution of the sample solution, ensuring that the atomization conditions of each discharge outlet are consistent, and thus improving the uniformity of the atomized particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. 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 creative work.

[0019] Figure 1 It is a schematic structural diagram of an atomizer in one embodiment of the present invention;

[0020] Figure 2 It is a schematic structural diagram of an atomizing ring in one embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the internal structure of an atomizer in one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the atomized particle crushing effect at a rotation speed of 4000 RPM in one embodiment of the present invention;

[0023] Figure 5 A schematic diagram of a first angle in one embodiment of the present invention;

[0024] Figure 6 A schematic diagram of a second angle in one embodiment of the present invention;

[0025] Among them: 1-driving device; 2-bearing seat; 3-fixed plate; 4-stirring shaft; 5-atomizing ring; 6-locking device; 7-atomizing hole; 8-discharging hole; 9-feeding pipe; 10-housing; 11-protective cover; θ1-first angle; θ2-second angle. DETAILED DESCRIPTION

[0026] 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.

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

[0028] Embodiment 1

[0029] In a preferred implementation of this embodiment, Figure 1As shown, the atomization assembly includes a stirring shaft 4 and an atomization ring 5, the atomization ring 5 is fixedly sleeved outside the stirring shaft 4, and an annular flow collecting space is formed between the atomization ring 5 and the stirring shaft 4, the stirring shaft 4 has a fluid channel inside, the stirring shaft 4 has a feed port connected to the fluid channel, the end face of the stirring shaft 4 away from the feed port is closed, and the outer wall of the stirring shaft 4 opposite to the atomization ring 5 is provided with a plurality of discharge holes 8, the discharge holes 8 are connected to the fluid channel, and the atomization ring 5 is provided with a plurality of atomization holes 7. By sleeved the atomization ring 5 at the lower end of the stirring shaft 4, the atomization ring 5 is provided with a plurality of atomization holes 7, compared with a single atomization port, the device can increase the atomization area of ​​the sample solution during the atomization process, and the atomizer can produce more atomized particles, and a plurality of discharge holes 8 are provided on the side wall of the stirring shaft 4, and the plurality of discharge holes 8 discharge simultaneously, thereby achieving a more uniform distribution of the sample solution, ensuring that the atomization conditions of each discharge port are consistent, thereby improving the uniformity of the atomized particles.

[0030] In a preferred embodiment of the present invention, Figure 5 As shown, with water as the medium, the axis of the atomizing hole 7 and the tangent of the intersection of the atomizing hole 7 have a first angle θ1, and the intersection tangent is the tangent of the intersection of the axis of the atomizing hole 7 and the outer wall of the atomizing ring 5, and the first angle θ1 is 60°. When the sample solution is sprayed at the first angle θ1 of 60°, the sample solution can maintain a suitable speed and pressure, providing a better power basis for the crushing process of the sample solution, and the kinetic energy of the sample solution will not be insufficient due to the first angle being too small, and it will not be able to fully diffuse, nor will the droplets be too dispersed due to the first angle being too large, and losing the concentrated impact force.

[0031] In a preferred embodiment of the present invention, the discharge holes 8 are of equal size and distributed around the axis of the stirring shaft 4, and the distribution of the discharge holes 8 is consistent with the distribution of the atomization holes 7. The stirring shaft 4 is provided with a plurality of discharge holes 8 of equal size, which can increase the spraying area of ​​the sample solution in the stirring shaft 4, make the sprayed sample solution more evenly distributed, thereby enhancing the atomization effect and improving the atomization efficiency.

[0032] In a preferred embodiment of the present invention, multiple groups of atomization holes 7 are arranged around the axis of the atomization ring 5, and each group of atomization holes 7 includes multiple atomization holes 7. Multiple groups of atomization holes 7 are arranged around the axis of the atomization ring 5, which can ensure that the sample solution is evenly atomized, thereby improving the consistency of the atomization effect.

[0033] In a preferred embodiment of the present invention, each atomizing hole 7 in each group of atomizing holes 7 is located on the same inclined plane, and the inclined plane and the axis of the atomizing ring 5 have a second angle θ2, and the second angle θ2 is 30°. This angle can form a more concentrated spray area when the sample solution is sprayed through the atomizing holes, thereby increasing the uniformity of the droplets. Figure 6As shown, at this time, the sample solution is dispersed more evenly when sprayed through the 7 groups of atomization holes, and can be dispersed into finer atomized particles, thereby improving the atomization effect of the atomizer. The first angle calculation process:

[0034] Motor speed: N = 8.33 rpm

[0035] Atomization ring radius: r = 0.135m

[0036] Angular velocity calculation: ω=2πN

[0037] Centrifugal force: F1 = mrω 2

[0038] Calculation of friction coefficient:

[0039] Experimental measurement, correction coefficient: β = 0.00182

[0040] Friction force: F = βλF1

[0041] Angle calculation:

[0042] The second angle calculation process:

[0043] Atomization hole diameter: d = 0.0003m

[0044] Atomizing ring wall thickness: l = 0.0012m

[0045] Number of atomizing ring holes: n = 2000

[0046] Material density: ρ=1000

[0047] Viscosity: η=0.7

[0048] Material flow: Q = 50

[0049]

[0050] The correction factor is obtained by experiment:

[0051] Corrected flow rate:

[0052] Reynolds number calculation:

[0053] Calculation of the height of the droplet after it is thrown out:

[0054] Angle calculation:

[0055] According to calculation, the combination of a first angle θ1 of 60° and a second angle θ2 of 30° can achieve a better breakup effect of the sample solution and generate finer droplets. This angle combination has been verified in practical applications and has high reliability and stability.

[0056] Figure 4 For the breakup effect of the atomized particles, the first angle θ1 in this state is 60°, the second angle θ2 is 30°, and the rotation speeds of the stirring shaft are: 75RPM, 125RPM, 250RPM, 500RPM, 1000RPM, 2000RPM, 4000RPM, 7500RPM, 10000RPM, 15000RPM. When a continuous and uninterrupted strip state is formed, both non-granular and strip states exist, which is the optimal droplet breakup state. At this time, the rotation speed n of the stirring shaft is 4000RPM. At this time, the sample solution can obtain a better breakup effect and form finer droplets.

[0057] Embodiment 2

[0058] In a preferred implementation of this embodiment, Figure 3 As shown, the atomizer includes a housing 10, a driving device 1 and an atomizing assembly as in Example 1, the output member of the driving device 1 is fixedly connected to the first end of the stirring shaft 4, the driving device 1 is used to drive the stirring shaft 4 to rotate, the stirring shaft 4 passes through the housing 10 and is rotatably connected to the housing 10, and the stirring shaft 4 extends out of the second end of the housing 10 and is fixedly sleeved with an atomizing ring 5. By sleeve-arranging the atomizing ring 5 at the lower end of the stirring shaft 4, a plurality of atomizing holes 7 are provided on the atomizing ring 5. Compared with a single atomizing outlet, the device can increase the atomization area of ​​the sample solution during the atomization process, and the atomizer can produce more atomized particles, and a plurality of discharge holes 8 are provided on the side wall of the stirring shaft 4, and the plurality of discharge holes 8 discharge materials at the same time, thereby achieving a more uniform distribution of the sample solution, ensuring that the atomization conditions of each discharge port are consistent, thereby improving the uniformity of the atomized particles.

[0059] In a preferred implementation of this embodiment, the atomizer further includes a connecting device, which is disposed below the housing 10, and is fixedly connected to the housing 10. The stirring shaft 4 extends out of the connecting device and is rotationally connected to the connecting device, and the connecting device is used to connect the stirring shaft 4 to the fixing member. The connecting device can provide stable support for the stirring shaft 4, ensuring that the stirring shaft 4 does not shake or shift during operation, thereby maintaining the stability of the stirring process.

[0060] In a preferred implementation of this embodiment, the atomizer further comprises a feed pipe 9, which passes through the feed port and is connected to the stirring shaft 4. The feed pipe 9 is used to transport the sample solution to the inner cavity of the stirring shaft 4.

[0061] In a preferred implementation of this embodiment, the connecting device includes a bearing seat 2 and a fixing plate 3, the bearing seat 2 is fixedly connected to the fixing plate 3, the housing 10 is fixedly connected to the bearing seat 2, the stirring shaft 4 passes through the bearing seat 2 and the fixing plate 3 in sequence, the stirring shaft 4 is rotatably connected to the bearing seat 2, there is a gap between the stirring shaft 4 and the fixing plate 3, and connecting through holes are respectively opened on both sides of the fixing plate 3. The bearing seat 2 fixes the stirring shaft 4 to provide stable support for the stirring shaft 4, and the connecting through holes on the fixing plate are used to fix the atomizer on a fixed fixing member in a fixed position, so as to facilitate the use of the atomizer.

[0062] Preferably, the atomizer further comprises a locking device 6, one end of the atomizing ring 5 close to the feed port is threadedly connected to the stirring shaft 4, the locking device 6 is threadedly connected to the end of the stirring shaft 4 extending out of the atomizing ring 5, and the end face of the locking device 6 is in contact with the end face of the atomizing ring 5. The locking device 6 can lock and fix the atomizing ring 5 to prevent the atomizing ring 5 from loosening, thereby ensuring the normal operation of the equipment.

[0063] Preferably, a protective cover 11 is sleeved on the outer wall of the feed pipe 9, and the protective cover 11 is fixed on the housing 10. The protective cover 11 protects the feed pipe 9 from being damaged and can fix the feed pipe 9 on the atomizer.

[0064] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An atomizing assembly, comprising a stirring shaft and an atomizing ring, characterized in that: The atomizing ring is fixedly sleeved outside the stirring shaft, and an annular flow collecting space is formed between the atomizing ring and the stirring shaft. A fluid channel is provided inside the stirring shaft, and a feed port connected to the fluid channel is provided on the stirring shaft. The end face of the stirring shaft away from the feed port is closed, and a plurality of discharge holes are provided on the outer wall of the stirring shaft opposite to the atomizing ring, and the discharge holes are connected to the fluid channel. The atomizing ring has a plurality of atomizing holes.

2. The atomizer assembly according to claim 1, characterized in that: The axis of the atomizing hole and the tangent line of the intersection of the atomizing hole have a first angle, and the tangent line of the intersection is the tangent line of the intersection of the axis of the atomizing hole and the outer wall surface of the atomizing ring.

3. The atomizer assembly according to claim 1, characterized in that: The discharge holes are of equal size and are distributed around the axis of the stirring shaft, and the distribution of the discharge holes is consistent with the distribution of the atomization holes.

4. The atomizer assembly according to claim 2, characterized in that: A plurality of atomization hole groups are arranged around the axis of the atomization ring, and each atomization hole group includes a plurality of atomization holes.

5. The atomizing assembly according to claim 4, characterized in that: The axes of the atomization holes in each group of the atomization holes are located on the same inclined plane, and the inclined plane and the axis of the atomization ring have a second angle.

6. The atomizer assembly according to claim 5, characterized in that: The first angle is 60°, and the second angle is 30°.

7. An atomizer, comprising a housing, a driving device and an atomizing assembly according to any one of claims 1 to 6, characterized in that: The output member of the driving device is fixedly connected to the first end of the stirring shaft, and the driving device is used to drive the stirring shaft to rotate. The stirring shaft passes through the shell and is rotationally connected to the shell. The atomizing ring is fixedly sleeved outside the second end of the stirring shaft extending out of the shell.

8. The atomizer according to claim 7, characterized in that: It also includes a connecting device, which is arranged below the shell, fixedly connected to the shell, the stirring shaft extends out of the connecting device and is rotatably connected to the connecting device, and the connecting device is used to connect the stirring shaft to a fixing member.

9. The atomizer according to claim 7, characterized in that: It also includes a feed pipe, which passes through the feed port and is connected to the stirring shaft.

10. The atomizer according to claim 8, characterized in that: The connecting device includes a bearing seat and a fixed plate, the bearing seat is fixedly connected to the fixed plate, the shell is fixedly connected to the bearing seat, the stirring shaft passes through the bearing seat and the fixed plate in sequence, the stirring shaft is rotatably connected to the bearing seat, there is a gap between the stirring shaft and the fixed plate, and connecting through holes are respectively opened on both sides of the fixed plate.

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