CN214809436U - High-pressure air-assisted sprayer air duct - Google Patents
High-pressure air-assisted sprayer air duct Download PDFInfo
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- CN214809436U CN214809436U CN202120933396.0U CN202120933396U CN214809436U CN 214809436 U CN214809436 U CN 214809436U CN 202120933396 U CN202120933396 U CN 202120933396U CN 214809436 U CN214809436 U CN 214809436U
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Abstract
The utility model discloses a high-pressure air-assisted sprayer dryer, include axial fan and install in the awl dryer of axial fan's air outlet, wherein, the week portion of awl dryer is equipped with the efflux entry, high-pressure air-assisted sprayer dryer still includes supercharging device, supercharging device includes booster fan and booster duct, booster duct encircles the awl dryer sets up, one side of booster duct with efflux entry intercommunication, booster duct's opposite side with booster fan's air outlet intercommunication. The utility model discloses a there is the technical problem of the range of the unable effective sprayer that promotes in the air-assisted sprayer dryer that aims at solving among the prior art.
Description
Technical Field
The utility model belongs to the technical field of atomizer, especially, relate to a high pressure air-assisted sprayer dryer.
Background
The air-assisted sprayer mainly comprises an air duct, a spray ring, a booster pump, a controller, a rack and the like, wherein the spray ring provided with a nozzle is positioned at an air outlet at the front end of the air duct, the atomization process of the sprayer is divided into two processes of primary hydraulic atomization and secondary atomization of high-speed airflow, and the two processes have larger difference in atomization form and mechanism. The primary atomization is a pressure atomization process of liquid flowing out of a nozzle under the action of pressure; the secondary atomization is a phenomenon that liquid drops are dispersed in a space and are crushed and atomized under the extrusion action of high-speed airflow. The fog drop transmission of the air-assisted sprayer mainly goes through the following three processes:
(1) the high-speed airflow near the air outlet breaks the fog drops, so that the particle size of the fog drops is reduced.
(2) Under the action of medium-speed airflow, the collision among the fog drops leads the fog drops to be polymerized and the particle size to be enlarged.
(3) The low-speed airflow diffuses and evaporates the fog drops to reduce the particle size of the fog drops. The speed of the air flow has obvious influence on secondary atomization, and the flow speed and the flow of the air flow have obvious influence on the diffusion and the sedimentation of fog drops in the wind field, so that the range and the dust falling effect of the sprayer are influenced.
In the prior art, an air duct of an air-assisted sprayer generally comprises an axial flow fan and a conical air duct, wherein the axial flow fan and the conical air duct are of a split structure or an integrated structure. The air outlet end of the conical air duct is smaller than the air inlet end. The axial flow fan generates axial airflow, the flow velocity and the air pressure are correspondingly increased after the axial flow fan is guided by the conical air duct, and the airflow sends the tiny fog drops at the front end of the air duct to a certain distance to realize dust control within a certain range. Therefore, the flow rate and the flow rate of the air flow play a decisive role in the range of the spraying machine, and the generation of the air flow depends on the inherent characteristics of the axial flow fan. Generally speaking, compared with a booster fan, an axial flow fan has a small air pressure coefficient and a large flow coefficient, namely, the air pressure of the axial flow fan is small and the flow is large when the axial flow fan and the booster fan have the same power.
In the prior art, the air-assisted sprayer has a large range within 200 meters and a limited range, and the specific reasons are as follows: the larger the range is, the larger the power and volume of the axial flow fan are. Because of the motor of axial fan inside the fan, and be subject to some structural inherent characteristics such as fan blade, the partial sectional area that overflows increases faster along with power increase, causes power increase and fan flow and velocity of flow can not the increase of same proportion, and then can't effectively promote the range of sprayer.
Therefore, the air duct of the air-assisted sprayer in the prior art has the defect that the range of the sprayer cannot be effectively improved, so that the long-range sprayer is a technical difficulty which needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Based on this, the utility model provides a high-pressure air-assisted sprayer dryer, this high-pressure air-assisted sprayer dryer aim at solving the technical problem that air-assisted sprayer dryer among the prior art has the range that can't effectively promote the sprayer.
(II) technical scheme
For solving the technical problem, the utility model provides a high-pressure air-assisted sprayer dryer, include axial fan and install in the awl dryer of axial fan's air outlet, wherein, the week portion of awl dryer is equipped with the efflux entry, high-pressure air-assisted sprayer dryer still includes supercharging device, supercharging device includes booster fan and pressurized duct, pressurized duct encircles the awl dryer sets up, one side of pressurized duct with efflux entry intercommunication, pressurized duct's opposite side with booster fan's air outlet intercommunication.
Preferably, the pressurizing pipeline is provided with a communicating cavity, a pressurizing cavity and a jet cavity which are formed in the pressurizing pipeline and are communicated in sequence, the communicating cavity, the pressurizing cavity and the jet cavity are annular, the communicating cavity is communicated with an air outlet of the pressurizing fan, and the jet cavity is communicated with the jet inlet.
Preferably, the distance between the outer wall of the pressurizing cavity and the inner wall of the pressurizing cavity is set as a pressurizing gap, the pressurizing gap is gradually reduced along the direction of the air flow in the pressurizing pipeline, and the outer wall of the pressurizing cavity is a smooth cambered surface.
Preferably, the distance between the outer wall of the jet cavity and the inner wall of the jet cavity is set as a jet gap, the jet gaps at all positions of the jet cavity are equal along the direction of the air flow in the pressurizing pipeline, and the jet gap is equal to the minimum value of the pressurizing gap.
Preferably, the jet gap is 4-10 mm.
Preferably, the extending direction of the jet flow cavity and the axial included angle of the conical air duct are less than or equal to 5 degrees.
Preferably, the supercharging pipeline is defined by the outer wall of the conical air duct and the pipeline outer cover together.
Preferably, one end of the conical air duct, which is far away from the axial flow fan, is an air duct air outlet, one end of the conical air duct, which is close to the axial flow fan, is an air duct air inlet, and the distance from the jet inlet to the air duct air outlet is smaller than the distance from the jet inlet to the air duct air inlet.
Preferably, the number of the booster fans is 1 or more, and when the number of the booster fans is more than one, the booster fans are uniformly distributed along the circumferential direction of the conical air cylinder.
Preferably, the booster fan is a centrifugal fan, and is mounted on the outer wall of the conical air cylinder through a threaded connecting piece.
(III) advantageous effects
The utility model discloses compare with prior art, the utility model discloses the beneficial effect of high-pressure air-assisted sprayer dryer mainly includes:
compared with the prior art, the utility model relates to a high-pressure air-assisted sprayer dryer can provide the high velocity of flow, large-traffic air current, can spout the small droplet that the ring produced with the dryer front end and deliver to farther place, realizes the spraying of long-range, can effectively promote the spraying range of sprayer.
Drawings
The features and advantages of the invention will be more clearly understood by reference to the accompanying drawings, which are schematic and should not be understood as imposing any limitation on the invention, in which:
fig. 1 is a perspective view of the whole structure of the wind barrel of the high-pressure air-assisted sprayer according to the embodiment of the present invention;
fig. 2 is a front view of the whole structure of the wind barrel of the high-pressure air-assisted sprayer according to the embodiment of the invention;
fig. 3 is a partial structural schematic view of the high-pressure air-assisted sprayer air duct according to the embodiment of the present invention;
fig. 4 is a sectional view of the supercharging device in the wind barrel of the high-pressure air-assisted sprayer according to the embodiment of the present invention.
Description of reference numerals:
11. the air conditioner comprises a supercharging device, 12 axial flow fans, 13 conical air cylinders, 14 current collectors, 111 supercharging fans, 112 communicating cavities, 113 supercharging cavities, 114 jet flow cavities, 131 jet flow inlets, 132 air cylinder air outlets, 133 air cylinder air inlets, 000 supercharging pipelines, 001 pipeline outer covers, 01 high-pressure areas and 02 low-pressure areas.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two elements may be mechanically or electrically connected, directly or indirectly connected through an intermediate medium, or connected through the inside of the two elements, or "in transmission connection", that is, connected in a power manner through various suitable manners such as belt transmission, gear transmission, or sprocket transmission. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, a high pressure air-assisted sprayer dryer includes an axial flow fan 12 and a cone dryer 3 installed at an air outlet of the axial flow fan 12, wherein a jet inlet 131 is formed at a peripheral portion of the cone dryer 3, the high pressure air-assisted sprayer dryer further includes a pressure boosting device 11, the pressure boosting device 11 includes a pressure boosting fan 111 and a pressure boosting pipeline 000, the pressure boosting pipeline 000 is disposed around the cone dryer 3, one side of the pressure boosting pipeline 000 is communicated with the jet inlet 131, and the other side of the pressure boosting pipeline 000 is communicated with an air outlet of the pressure boosting fan 111.
In this embodiment, will the utility model relates to a high pressure air-assisted sprayer dryer is applied to in the air-assisted sprayer, spouts the ring and locates the air-out end of awl dryer 3. The collector 14 is located at the air inlet end of the axial flow fan 12. The jet inlet 131 is an annular notch arranged on the conical air duct. The airflow generated by the booster fan 111 passes through the booster duct 000 to generate a high-speed airflow, which is injected into the cone air duct 31 through the jet inlet 131 and is merged with the airflow generated by the axial flow fan 12 to form a high-flow-rate and high-flow airflow. The high-flow-rate and large-flow airflow can convey the tiny droplets generated by the spray ring at the front end of the air duct to a farther place, so that long-range spraying is realized. In addition, can know by the secondary atomizing principle, if supercharging fan 111 of supercharging device 11 adopts variable control mode, can also do the fine setting to the wind speed and the flow of dryer air outlet 132, make the utility model relates to a range of high pressure air-assisted sprayer dryer is adjustable, and the spraying effect is controllable.
According to the utility model discloses a specific embodiment, pressure boost pipeline 000 has the intercommunication chamber 112, pressure boost chamber 113 and the efflux chamber 114 that form in it and communicate in proper order, and intercommunication chamber 112, pressure boost chamber 113 and efflux chamber 114 are cyclic annularly, and intercommunication chamber 112 communicates with booster fan 111's air outlet, and efflux chamber 114 communicates with efflux entry 131. In this embodiment, the cavity structure in the boost pipe 000 is designed reasonably, so that the air flow control effect can be further improved. The method specifically comprises the following steps: the communication cavity 112 is large and is favorable for being communicated with the air outlet of the booster fan 111. The pressurizing cavity 113 is used for connecting the communicating cavity 112 and the jet flow cavity 114, the pressurizing cavity 113 is used for pressurizing, and the jet flow cavity 114 is small, so that high-speed airflow is formed.
After the communicating cavity 112 is filled with the airflow generated by the booster fan 111, the airflow is boosted by the booster cavity 113 to generate a high-pressure airflow, and the high-speed airflow is generated by the jet cavity 114, and is injected into the cone air duct 31 and is converged with the airflow generated by the axial flow fan 12 to form a high-flow-rate and high-flow airflow.
According to the utility model discloses a specific embodiment establishes the distance between the outer wall of pressure boost chamber 113 and the inner wall of pressure boost chamber 113 into the pressure boost clearance, and along the air current direction in the boost pipe way 000, the pressure boost clearance reduces gradually, and the outer wall of pressure boost chamber 113 is glossy cambered surface. In this embodiment, the pressurizing cavity 113 is a tapered structure with an arc transition, and before the tapering, it is a low-pressure region 02 connected with the communicating cavity 112, and after the tapering, it is a high-pressure region 01 connected with the jet cavity 114. This structure does benefit to pressurization chamber 113 smooth connection intercommunication chamber 112 and efflux chamber 114, does benefit to the air current smoothly to pass through, and adopts this structure, can effectively guarantee the pressure boost effect of pressurization chamber 113, does benefit to and improves jet pressure.
According to the utility model discloses a specific embodiment establishes the distance between the outer wall of efflux chamber 114 and the inner wall of efflux chamber 114 to the efflux clearance, and along the air current direction in the boost pipe way 000, efflux chamber 114 efflux clearance homogeneous phase everywhere equals, and the efflux clearance equals the minimum in boost clearance. In this embodiment, the jet cavity 114 is a smooth straight-through gap, one end of which is connected to the pressure increasing cavity 113, and the other end of which is led into the conical wind barrel 3. By adopting the structure, the gas pressure in the jet flow cavity 114 is favorably stabilized, and the stability of the gas flow pressure in the cone air duct 3 is ensured.
According to a specific embodiment of the present invention, the jet gap is 4-10 mm. The structure is beneficial to ensuring enough jet flow speed, and the smaller the jet flow gap is, the larger the jet flow speed is.
According to the utility model discloses a specific embodiment, the extending direction of efflux chamber 114 and the axial contained angle of awl dryer 3 are less than or equal to 5. In this embodiment, the air velocity in the jet flow chamber 114 is set to be the jet flow velocity, and the jet flow velocity is 2 to 5 times of the air velocity in the cone air duct 3. The jet direction of the jet cavity 114 is consistent with the air flow direction in the cone air duct 3 or forms a small included angle, and the included angle is controlled within 5 degrees. By adopting the structure, the air flow generated by the booster fan 111 is favorably ensured to be sprayed to the conical air duct 31, the included angle between the air flow direction and the air flow direction generated by the axial flow fan 12 is smaller, and the improvement of the flow speed and the flow of the total air flow after the two air flows are converged is favorably realized. The range is further improved.
According to the utility model discloses a specific embodiment, the booster duct 000 is enclosed by the outer wall of awl dryer 3 and pipeline dustcoat 001 jointly. In the present embodiment, the outer wall of the cone air duct 3 is used as the inner wall of the boost duct 000, and the inner wall and the duct cover 001 enclose the boost duct 000. This structure does benefit to and alleviates the utility model relates to a whole quality of high-pressure air-assisted sprayer dryer does benefit to the compactedness that improves the structure simultaneously.
According to the utility model discloses a specific embodiment, the one end that axial fan 12 was kept away from to awl dryer 3 is dryer air outlet 132, and the one end that is close to axial fan 12 of awl dryer 3 is dryer air intake 133, and the distance of efflux entry 131 to dryer air outlet 132 is less than the distance of efflux entry 131 to dryer air intake 133. In this embodiment, the jet inlet 131 is disposed at a position close to the air duct air outlet 132, and by adopting this structure, the speed of the air flow close to the air duct air outlet 132 can be increased, which is beneficial to breaking the mist droplets by the high-speed air flow close to the air duct air outlet 132 and reducing the particle size of the mist droplets.
According to the utility model discloses a specific embodiment, booster fan 111's quantity is 1 or a plurality of, and when booster fan 111's quantity was a plurality of, a plurality of booster fan 111 followed the circumference equipartition of awl dryer 3.
Referring to fig. 1, in the present embodiment, the number of the booster fans 111 is two, and the two booster fans 111 are symmetrically disposed on the left and right sides of the conical air duct 3.
According to the utility model discloses a specific embodiment, booster fan 111 is centrifugal fan, installs booster fan 111 in the outer wall of awl dryer 3 through threaded connection spare. By adopting the structure, the disassembly, assembly and maintenance of the booster fan 111 are facilitated.
Compared with the prior art, the utility model relates to a high-pressure air-assisted sprayer dryer can provide the high velocity of flow, large-traffic air current, can spout the small droplet that the ring produced with the dryer front end and deliver to farther place, realizes the spraying of long-range, can effectively promote the spraying range of sprayer. And compare with other sprayers with power, the utility model relates to a high pressure air-assisted sprayer dryer, because the dryer has supercharging device, the range is farther. Compare with other sprayers with the range, the utility model relates to a high pressure air-assisted sprayer dryer because the dryer has supercharging device, and the structure is compacter, and the volume can be little, and the energy consumption is lower. The utility model relates to an among high-pressure air-assisted sprayer dryer, supercharging device and axial fan can be separately the independent control respectively, structurally do not make under the circumstances that changes, can develop intelligent sprayer, are favorable to realizing intelligent control.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (10)
1. The high-pressure air-assisted sprayer air duct comprises an axial flow fan and a cone air duct arranged at an air outlet of the axial flow fan, and is characterized in that a jet inlet is formed in the peripheral portion of the cone air duct, the high-pressure air-assisted sprayer air duct further comprises a supercharging device, the supercharging device comprises a supercharging fan and a supercharging pipeline, the supercharging pipeline surrounds the cone air duct, one side of the supercharging pipeline is communicated with the jet inlet, and the other side of the supercharging pipeline is communicated with the air outlet of the supercharging fan.
2. The air duct of the high-pressure air-assisted sprayer according to claim 1, wherein the pressurizing pipeline has a communicating cavity, a pressurizing cavity and a jet cavity which are formed therein and sequentially communicated, the communicating cavity, the pressurizing cavity and the jet cavity are all annular, the communicating cavity is communicated with an air outlet of the pressurizing fan, and the jet cavity is communicated with the jet inlet.
3. The air duct of the high-pressure air-assisted sprayer according to claim 2, wherein the distance between the outer wall of the pressurizing cavity and the inner wall of the pressurizing cavity is set as a pressurizing gap, the pressurizing gap is gradually reduced along the direction of the air flow in the pressurizing pipeline, and the outer wall of the pressurizing cavity is a smooth cambered surface.
4. The air duct of the high-pressure air-assisted sprayer according to claim 3, wherein the distance between the outer wall of the jet cavity and the inner wall of the jet cavity is set as a jet gap, the jet gaps are equal at all positions of the jet cavity along the direction of the air flow in the pressurization pipeline, and the jet gap is equal to the minimum value of the pressurization gap.
5. The air duct of the high-pressure air-assisted sprayer according to claim 4, characterized in that the jet gap is 4-10 mm.
6. The air duct of the high-pressure air-assisted sprayer according to claim 5, wherein an included angle between the extending direction of the jet cavity and the axial direction of the conical air duct is less than or equal to 5 degrees.
7. The air duct of the high-pressure air-assisted sprayer according to any one of claims 1 to 6, characterized in that the pressure boosting pipeline is enclosed by the outer wall of the cone air duct and a pipeline outer cover.
8. The air duct of the high-pressure air-assisted sprayer according to claim 1, wherein one end of the conical air duct, which is far away from the axial flow fan, is an air duct air outlet, one end of the conical air duct, which is close to the axial flow fan, is an air duct air inlet, and the distance from the jet inlet to the air duct air outlet is smaller than the distance from the jet inlet to the air duct air inlet.
9. The air duct of the high-pressure air-assisted sprayer according to claim 1, wherein the number of the booster fans is 1 or more, and when the number of the booster fans is more, the booster fans are uniformly distributed along the circumferential direction of the conical air duct.
10. The air duct of the high-pressure air-assisted sprayer according to claim 1, wherein the booster fan is a centrifugal fan, and the booster fan is mounted on the outer wall of the cone air duct through a threaded connection piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120933396.0U CN214809436U (en) | 2021-04-30 | 2021-04-30 | High-pressure air-assisted sprayer air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120933396.0U CN214809436U (en) | 2021-04-30 | 2021-04-30 | High-pressure air-assisted sprayer air duct |
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| Publication Number | Publication Date |
|---|---|
| CN214809436U true CN214809436U (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120933396.0U Active CN214809436U (en) | 2021-04-30 | 2021-04-30 | High-pressure air-assisted sprayer air duct |
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| CN (1) | CN214809436U (en) |
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2021
- 2021-04-30 CN CN202120933396.0U patent/CN214809436U/en active Active
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