Pneumatic atomizing nozzle device

Abstract

The utility model relates to the technical field of nozzle devices, and provides a pneumatic atomization nozzle device which comprises an atomization body provided with an atomization nozzle and a water inlet. The air entraining pipe is arranged in the atomization main body, and the air entraining pipe is provided with an air channel; the rotating head is rotationally arranged at one end of the air guiding pipe, the rotating head is provided with an outlet, the outlet faces the atomizing nozzle and communicates with the air channel, and an atomizing cavity is formed among the rotating head, the air guiding pipe and the inner wall of the atomizing body; and the outlet, the atomizing nozzle and the water inlet are communicated with the atomizing cavity. By means of the technical scheme, the problems that in the prior art, an internal structure is limited and is easily affected by air pressure, and the water pressure and the air pressure in the spray head can fluctuate up and down, so that the atomization particle size cannot be stabilized are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of nozzle devices, and in particular to a pneumatic atomizing nozzle device. Background Art

[0002] Atomizing nozzles mainly use high-pressure gas to atomize the liquid, and then spray it out at high speed through a small-hole nozzle. Currently, commonly used atomizing nozzles include pressure atomization and rotary atomization. Pressure atomization is the liquid sprayed out at a very high speed under high pressure into a static or low-speed airflow. Due to the different flow channel structures inside the nozzle, the atomization process will also be different; rotary atomization is to supply the liquid to the center of a high-speed rotating part and throw it out to the periphery for atomization.

[0003] Currently, when using a rotary atomizing nozzle, due to the limited structure inside the nozzle, it is significantly affected by the air pressure, and the water pressure and air pressure inside the nozzle also fluctuate up and down, resulting in unstable atomization particle size. Utility Model Content

[0004] The utility model proposes a pneumatic atomizing nozzle device, which solves the problem in the related art that the internal structure is limited and easily affected by air pressure, and the water pressure and air pressure in the nozzle also fluctuate up and down, resulting in unstable atomized particle size.

[0005] The technical solution of the utility model is as follows:

[0006] A pneumatic atomizing nozzle device, comprising:

[0007] An atomizing body, wherein the atomizing body has an atomizing nozzle and a water inlet;

[0008] An air duct, the air duct is arranged in the atomizing body, and the air duct has an airway;

[0009] A rotating head is rotatably arranged at one end of the air duct, the rotating head has an outlet, the outlet faces the atomizing nozzle, the outlet is connected to the airway, an atomizing cavity is formed between the rotating head, the air duct and the inner wall of the atomizing body, and the outlet, the atomizing nozzle and the water inlet are all connected to the atomizing cavity.

[0010] As a further technical solution, the atomizing nozzle is a reduced diameter nozzle, and the rotating head is located between the atomizing nozzle and the air duct.

[0011] As a further technical solution, the rotating head further has a mounting groove, the outlet is connected to the airway through the mounting groove, and further comprises:

[0012] The impeller part is fixedly arranged in the mounting groove.

[0013] As a further technical solution, the air duct has an annular groove at one end close to the atomizing nozzle, and the rotating head has an annular bulge, which is located in the annular groove.

[0014] As a further technical solution, the outer wall of the air duct has a spiral groove, the water inlet is arranged along a tangential inclination, and the water inlet is located at an end of the spiral groove away from the atomizing nozzle.

[0015] As a further technical solution, the air duct is detachably arranged in the atomizing body, and the outer wall of the air duct also has a card slot, and further includes:

[0016] A plurality of elastic clamps are arranged on the inner wall of the atomizing body and located in the atomizing cavity. The plurality of elastic clamps are arranged circumferentially along the air duct and are located in the clamping groove.

[0017] As a further technical solution, a plurality of the elastic clips are arranged along the length direction of the air duct, and the clip grooves are provided at both ends of the spiral groove.

[0018] The working principle and beneficial effects of the utility model are:

[0019] In the utility model, the working principle of the device is to replace the airflow originally circulating in the atomizing body 1 with water flow, and the water inlet pipe originally arranged in the atomizing body 1 is replaced by the air inlet pipe 2. Through the rotating head arranged at the end of the air inlet pipe 2 with high speed, the high-speed airflow in the airway 201 is rotated and sprayed from the outlet to the atomizing nozzle 101. The water flow flowing into the water inlet 102 at the atomizing nozzle 101 is affected by the high-speed airflow, thereby being atomized and discharged from the atomizing nozzle 101. The water flow is arranged opposite to the airflow. Instead of the water flow rotating and spraying toward the high-pressure airflow for atomization, it is replaced by the high-pressure airflow rotating and spraying toward the water flow for atomization. The water pressure is better controlled than the air pressure, and the opposite arrangement greatly reduces the influence of the air pressure on the atomization effect. The above form can also achieve the stability of the atomized particle size. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 This is a schematic diagram of the structure of a pneumatic atomizing nozzle device in the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the pneumatic atomizing nozzle device in the utility model;

[0023] Figure 3 For this utility model Figure 2 Enlarged view of part A in the middle;

[0024] Figure 4 This is a schematic diagram of the air duct structure in the utility model;

[0025] In the figure: 1. atomizing body, 101. atomizing nozzle, 102. water inlet, 103. atomizing chamber, 2. air duct, 201. air duct, 202. annular groove, 203. spiral groove, 204. clamping groove, 3. rotating head, 301. outlet, 302. mounting groove, 303. annular convex, 4. impeller part, 5. elastic clamp. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1~Figure 4 As shown, this embodiment provides a pneumatic atomizing nozzle device, comprising:

[0028] An atomizing body 1, wherein the atomizing body 1 has an atomizing nozzle 101 and a water inlet 102;

[0029] An air duct 2, wherein the air duct 2 is disposed in the atomizing body 1, and the air duct 2 has an air passage 201;

[0030] A rotating head 3 is rotatably arranged at one end of the air duct 2, and the rotating head 3 has an outlet 301, the outlet 301 faces the atomizing nozzle 101, and the outlet 301 is connected to the airway 201. An atomizing chamber 103 is formed between the rotating head 3, the air duct 2 and the inner wall of the atomizing body 1, and the outlet 301, the atomizing nozzle 101 and the water inlet 102 are all connected to the atomizing chamber 103.

[0031] In this embodiment, the traditional rotary atomization method realizes atomization by supplying liquid to the center of a high-speed rotating part. However, the above method is obviously affected by air pressure, and the water pressure and air pressure in the nozzle will also fluctuate up and down, resulting in unstable atomized particle size. In order to solve the above problems, a pneumatic atomization nozzle device is designed.

[0032] The working principle of the device is to replace the airflow originally circulating in the atomizing body 1 with water flow, and the water inlet pipe originally arranged in the atomizing body 1 is replaced by an air inlet pipe 2. The rotating head 3 arranged at the end of the air inlet pipe 2 is used to rotate the high-speed airflow in the airway 201 and spray it from the outlet 301 to the atomizing nozzle 101. The water flow flowing into the water inlet 102 at the atomizing nozzle 101 is affected by the high-speed airflow, thereby being atomized and discharged from the atomizing nozzle 101. The water flow is arranged opposite to the airflow. Instead of the water flow rotating and spraying toward the high-pressure airflow for atomization, the high-pressure airflow rotates and sprays toward the water flow for atomization. The water pressure is better controlled than the air pressure, and the opposite arrangement greatly reduces the influence of the air pressure on the atomization effect. The above form can also achieve the stability of the atomized particle size.

[0033] Furthermore, the atomizing nozzle 101 is a reduced diameter nozzle, and the rotating head 3 is located between the atomizing nozzle 101 and the air duct 2 .

[0034] In this embodiment, in order to ensure the atomization effect, the atomizing nozzle 101 is designed to be a reduced diameter port, and the high-pressure gas discharged from the outlet 301 rotates and sprays toward the atomizing nozzle 101 with a reduced diameter. At the same time, for the convenience of implementation, the rotating head 3 is also required to be located between the atomizing nozzle 101 and the air duct 2.

[0035] Furthermore, the rotating head 3 also has a mounting groove 302, and the outlet 301 is connected to the air passage 201 through the mounting groove 302, and further includes:

[0036] The impeller part 4 is fixedly disposed in the mounting groove 302 .

[0037] In this embodiment, in order to facilitate the high-pressure gas in the airway 201 to drive the rotating head 3 to rotate at high speed and avoid adding a rotating power in the entire relatively compact nozzle device, a mounting groove 302 is provided on the rotating head 3 close to the air duct 2, and an impeller part 4 is fixedly welded therein when installed, so that the impeller part 4 can drive the rotating head 3 as a whole to rotate at one end of the air duct 2 after being subjected to high-pressure gas. At the same time, in order to ensure that the high-pressure gas can be discharged smoothly, the outlet 301 is connected to the airway 201 through the mounting groove 302.

[0038] Furthermore, the air duct 2 has an annular groove 202 at one end close to the atomizing nozzle 101 , and the rotating head 3 has an annular protrusion 303 , and the annular protrusion 303 is located in the annular groove 202 .

[0039] In this embodiment, in order to ensure that the rotating head 3 rotates stably at the end of the air duct 2, the air duct 2 is designed to have an annular groove 202 at one end close to the atomizing nozzle 101 to ensure that the annular bulge 303 of the rotating head 3 can be stably stuck in the annular groove 202 and will not fall off. The annular groove 202 provides a stable limiting function, and the annular setting is also to ensure that the rotation action can be completed smoothly.

[0040] Furthermore, the outer wall of the air duct 2 has a spiral groove 203 , and the water inlet 102 is arranged along a tangential tilt. The water inlet 102 is located at an end of the spiral groove 203 away from the atomizing nozzle 101 .

[0041] In this embodiment, a spiral groove 203 is provided on the outer wall of the air duct 2 in order to provide a certain rotational effect to the water flow in the atomizing chamber 103 in advance before atomization, so that it can be better atomized after being acted upon by the high-pressure gas. The position angle of the water inlet 102 is also designed so that the water inlet 102 is inclined along the tangential direction to ensure that the water inlet 102 is located at the end of the spiral groove 203 away from the atomizing nozzle 101, thereby increasing the contact time between the water flow and the spiral groove 203, making it easier to realize rotating water flow and improving the water flow rotation effect.

[0042] Furthermore, the air duct 2 is detachably arranged in the atomizing body 1, and the outer wall of the air duct 2 also has a card slot 204, and further includes:

[0043] A plurality of elastic clamps 5 are arranged on the inner wall of the atomizing body 1 and located in the atomizing chamber 103 . The plurality of elastic clamps 5 are arranged circumferentially along the air duct 2 . The elastic clamps 5 are located in the clamping groove 204 .

[0044] Furthermore, a plurality of the elastic clamps 5 are arranged along the length direction of the air duct 2 , and the clamping grooves 204 are provided at both ends of the spiral groove 203 .

[0045] In this embodiment, in order to avoid the position of the atomizing chamber 103 and ensure that the air duct 2 can be stably installed in the atomizing body 1, and it is convenient to disassemble and repair after damage, a card groove 204 is opened on the outer wall of the air duct 2, and at the same time, an elastic clip 5 is fixedly installed with a thread on the inner wall of the atomizing body 1, and several elastic clips 5 are arranged along the circumference of the air duct 2 to ensure that the air duct 2 is stably fixed in the circumferential direction. The air duct 2 is relatively long, so several elastic clips 5 are also arranged along the length direction of the air duct 2 to fully stabilize the installation position of the air duct 2. At the same time, due to the setting of the elastic clip 5, in order to ensure that the rotating water flow can also flow stably in the atomizing chamber 103 and will not be cut off, it is necessary to provide card grooves 204 at both ends of the spiral groove 203 to avoid the position.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pneumatic atomizing nozzle device, characterized in that: include: An atomizing body (1), wherein the atomizing body (1) has an atomizing nozzle (101) and a water inlet (102); An air duct (2), the air duct (2) being arranged in the atomizing body (1), the air duct (2) having an air passage (201); A rotating head (3), the rotating head (3) being rotatably disposed at one end of the air duct (2), the rotating head (3) having an outlet (301), the outlet (301) facing the atomizing nozzle (101), the outlet (301) being connected to the air passage (201), an atomizing chamber (103) being formed between the rotating head (3), the air duct (2) and the inner wall of the atomizing body (1), the outlet (301), the atomizing nozzle (101) and the water inlet (102) all being connected to the atomizing chamber (103).

2. A pneumatic atomizing nozzle device according to claim 1, characterized in that: The atomizing nozzle (101) is a reduced diameter nozzle, and the rotating head (3) is located between the atomizing nozzle (101) and the air duct (2).

3. A pneumatic atomizing nozzle device according to claim 1, characterized in that: The rotating head (3) further comprises a mounting groove (302), the outlet (301) being connected to the air passage (201) via the mounting groove (302), and further comprises: An impeller portion (4), the impeller portion (4) being fixedly arranged in the mounting groove (302).

4. A pneumatic atomizing nozzle device according to claim 1, characterized in that: The air duct (2) has an annular groove (202) at one end close to the atomizing nozzle (101), and the rotating head (3) has an annular bulge (303), and the annular bulge (303) is located in the annular groove (202).

5. The pneumatic atomizing nozzle device according to claim 1, characterized in that: The outer wall of the air duct (2) is provided with a spiral groove (203), the water inlet (102) is arranged tangentially and tilted, and the water inlet (102) is located at an end of the spiral groove (203) away from the atomizing nozzle (101).

6. A pneumatic atomizing nozzle device according to claim 5, characterized in that: The air duct (2) is detachably arranged in the atomizing body (1), the outer wall of the air duct (2) further comprising a slot (204), and further comprising: A plurality of elastic clips (5), wherein the plurality of elastic clips (5) are arranged on the inner wall of the atomizing body (1) and are located in the atomizing chamber (103); the plurality of elastic clips (5) are arranged circumferentially along the air duct (2); and the elastic clips (5) are located in the clip groove (204).

7. A pneumatic atomizing nozzle device according to claim 6, characterized in that: A plurality of the elastic clamping members (5) are arranged along the length direction of the air duct (2), and the clamping grooves (204) are provided at both ends of the spiral groove (203).

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