CN205020304U - Split type ultrasonic nozzle - Google Patents

Abstract

The utility model relates to a split type ultrasonic nozzle, which comprises a nozzle main body, wherein a core body axially communicated with the nozzle main body is arranged inside the nozzle main body, and a connecting pipe is connected to the inlet end of the nozzle main body, and the core body The outer wall of the nozzle body, the outer wall of the connecting pipe and the inner wall of the nozzle body form a liquid flow channel, and a through hole is also opened on the side wall of the outlet end of the core body; The ultrasonic vibration head facing the outlet end is connected with the outer wall of the nozzle main body through a support frame. Through the above structure, the utility model adopts the combination of the nozzle and the ultrasonic vibration head to form multiple atomization, which can make the spray atomization effect of the nozzle better and the atomization more thorough, and the particle size of the water mist can be equivalent to the particle size of the dust. Moreover, the spray speed is faster and the range is wider, so it is very suitable for the field of dust prevention and control, with less water consumption and better dust suppression effect.

Description

A Split Type Ultrasonic Nozzle

Technical field:

The utility model relates to the technical field of nozzles, in particular to a split ultrasonic nozzle.

Background technique:

In some workplaces, such as dust exhaust passages in grinding workshops, mining, coal mine crushing, screening, belt transfer and other production processes, it is necessary to carry out dust prevention and control work on dust production points. The dust generated during such operations is harmful to human health and The environment is extremely harmful, especially respirable dust with a particle size of less than 5 μm, which has high dispersion, small particle size, large specific surface area, strong adsorption capacity, and is not easy to settle. Under the disturbance of air flow, it will be suspended in the air for a long time. Research and practice have shown that when the particle size of water mist is close to that of dust, the two are more likely to collide and capture the dust. However, the particle size of water mist produced by nozzles currently used for dust control is still difficult to reach the same level as the particle size of dust, so the dust suppression effect is not ideal and the amount of water consumed in the operation is large.

Utility model content:

The purpose of the utility model is to provide a split type ultrasonic nozzle for the above-mentioned shortcomings of the existing products.

The technical solution adopted by the utility model is: a split type ultrasonic nozzle, the ultrasonic nozzle includes a nozzle body, wherein, the inside of the nozzle body is provided with a core that communicates with the nozzle body in the axial direction, and the inlet end of the nozzle body is also There is a connecting pipe connected with the core body, and a liquid flow path is formed between the outer wall of the core body, the outer wall of the connecting pipe and the inner wall of the nozzle body, and the outlet end side wall of the core body is also provided with a connection with the The through hole inside the liquid channel and the core body; an ultrasonic vibration head that is separated from the outlet end of the nozzle body and facing the outlet end is also provided outside the outlet end of the nozzle body. External wall connections.

The support frame is in the shape of a "V", and its two ends are respectively formed into hook shapes. Correspondingly, two positioning grooves are formed on the outer wall of the nozzle body to respectively locate the two sides of the support frame, and one end of the positioning groove Bayonets corresponding to the hook-shaped ends of the support frame are respectively provided.

The internal channel of the core body is divided into a constricting channel and a gradually expanding channel which communicate with each other from the inlet end to the outlet end, and the through hole is opened on the side wall of the gradually expanding channel.

The interior of the nozzle body is provided with a stepped circle for positioning the core.

Through the above structure, the utility model adopts the combination of the nozzle and the ultrasonic vibration head to form multiple atomization, which can make the spray atomization effect of the nozzle better and the atomization more thorough, and the particle size of the water mist can be equivalent to the particle size of the dust. Moreover, the spray speed is faster and the range is wider, so it is very suitable for the field of dust prevention and control, with less water consumption and better dust suppression effect.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the working principle of the utility model.

detailed description:

Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described.

As shown in Fig. 1 and Fig. 2, what the utility model describes is a split type ultrasonic nozzle, which includes a nozzle body 1, wherein, the interior of the nozzle body 1 is provided with a The core body 2, the inlet end of the nozzle body 1 is also connected with a connecting pipe 3 communicating with the core body 2, and a liquid flow channel 101 is formed between the outer wall of the core body 2, the outer wall of the connecting pipe 3 and the inner wall of the nozzle body 1 , and the side wall of the outlet end of the core body 2 is also provided with a through hole 21 communicating with the liquid flow channel 101 and the inside of the core body 2; The outlet end is separated and facing the ultrasonic vibration head 4 at the outlet end, and the ultrasonic vibration head 4 is connected to the outer wall of the nozzle main body 1 through a support frame 5 .

The working principle of the utility model is: compressed air enters from the inlet end of the connecting pipe 3 and passes through the core body 2. It becomes larger and expands outward to the inner cavity of the nozzle main body 1. The gas in the inner cavity of the nozzle main body 1 flows into the front half of the nozzle under high pressure, and the liquid entering from the through hole 21 on the side of the core body 2 is sheared into extremely small mist particles. The mist particles hit the ultrasonic vibrating head 4 and are atomized again to form water mist with smaller particle size.

Specifically, the support frame 5 is in the shape of a "V", and its two ends are respectively formed into hook shapes. slot 11, and one end of the positioning slot 11 is respectively provided with a bayonet 12 corresponding to the hook-shaped end of the support frame 5. The V-shaped support frame 5 has a certain degree of elasticity, and the ultrasonic vibration head 4 is installed on the middle bottom of the V-shaped support frame 5, and the two sides of the V-shaped support frame 5 sink into the positioning grooves 11 of the outer wall of the nozzle main body 1 and the bends at both ends The hook is snapped into the bayonet 12 at the end of the positioning groove 11 to form a stable installation. This installation method is simple and convenient, and is convenient for replacement or maintenance.

The inner channel of the core body 2 is divided into a converging channel 201 and a diverging channel 202 which communicate with each other from the inlet end to the outlet end, and the through hole 21 is opened on the side wall of the diverging channel 202 . That is, after the compressed air flow enters the core body 2 from the connecting pipe 3, it is further compressed along with the air flow channel from large to small, and then sprayed into the gradually expanding channel 202 of the core body 2 at high pressure. Due to the change of the spray cross-sectional area, the airflow changes from subsonic speed to sonic speed, and then accelerates to supersonic speed, forming a high-speed airflow whose speed is higher than that of sound waves. The high-pressure, high-speed airflow shears the liquid flowing out of the through hole 21 on the side wall of the gradually expanding channel 202 into extremely small mist particles, and the mist particles are further atomized after hitting the ultrasonic vibrating head 4 to form smaller microscopic particles. The fog is sprayed out with the high-speed airflow, so the spray atomization effect is better.

The inside of the nozzle body 1 is provided with a stepped circle 13 for positioning the core body 2; the core body 2 is radially positioned by the stepped circle 13, so that the outer wall of the core body 2 is spaced from the inner wall of the nozzle body 1 to form a liquid channel. The connecting pipe 3 and the nozzle main body 1 are connected by threads, and several grooves are opened at the joint to communicate with the liquid passage. In addition, in the present utility model, the peripheral thread connection of the nozzle body 1 and the inlet end of the connecting pipe 3 are respectively provided with sealing rubber rings.

Through the above structure, the utility model adopts the combination of the nozzle and the ultrasonic vibration head to form multiple atomization, which can make the spray atomization effect of the nozzle better and the atomization more thorough, and the particle size of the water mist can be equivalent to the particle size of the dust. Moreover, the spray speed is faster and the range is wider, so it is very suitable for the field of dust prevention and control, with less water consumption and better dust suppression effect.

Claims (4)

1. A split-type ultrasonic nozzle, which comprises a nozzle body, is characterized in that: the inside of the nozzle body is provided with a core body axially communicated with the nozzle body, and the inlet end of the nozzle body is also connected with a core body A connecting pipe connected to each other, a liquid flow channel is formed between the outer wall of the core body, the outer wall of the connecting pipe and the inner wall of the nozzle body, and the side wall of the outlet end of the core body is also opened to connect the liquid flow channel and the core. There is a through hole inside the body; an ultrasonic vibrating head that is separated from the outlet end of the nozzle main body and facing the outlet end is also provided outside the outlet end of the nozzle main body, and the ultrasonic vibrating head is connected with the outer wall of the nozzle main body through a support frame. 2. The split-type ultrasonic nozzle according to claim 1, characterized in that: the support frame is in a "V" shape, and its two ends are respectively formed into hook shapes, and correspondingly, the outer wall of the nozzle body is formed with Two positioning grooves respectively locate the two sides of the support frame, and one end of the positioning grooves is respectively provided with a bayonet corresponding to the hook-shaped end of the support frame. 3. The split type ultrasonic nozzle according to claim 1, characterized in that: the internal channel of the core body is divided into a converging channel and a gradually expanding channel connected from the inlet end to the outlet end, and the through hole is opened On the side walls of the diverging channel. 4. The split-type ultrasonic nozzle according to claim 1, characterized in that: a stepped circle for positioning the core is provided inside the nozzle body.