CN219519217U - Blade nozzle - Google Patents

Abstract

The utility model provides a blade nozzle, belongs to the field of injection devices, and solves the problem that vortex is generated after liquid flow in the nozzle increases speed. The utility model is composed of a nozzle and a runner arranged in the nozzle, the nozzle and the runner are divided into a mounting section, a convergent section and a rectifying section by different functions, and the tail end of the outer surface of the mounting section is provided with threads for mounting the nozzle on equipment; a plurality of rectifying blades are arranged in the rectifying section flow channel and used for dredging liquid flow and reducing the generation of vortex; the flow channels of the installation section and the rectifying section are cylindrical and used for conveying liquid flow, the flow channels of the converging section are conical, so that the liquid flow is depressurized and accelerated, the rectifying section and other nozzle parts are manufactured separately for reducing manufacturing difficulty and production cost, and finally the rectifying section and the nozzle parts are assembled again in a welding mode. The utility model has the advantages that the rectifying blade is additionally arranged at the front end of the nozzle for guiding the accelerated liquid flow, reducing the generation of vortex and preventing the energy of the vortex loss liquid flow.

Description

Blade nozzle

Technical Field

The utility model belongs to the field of spraying devices, and relates to a nozzle, in particular to a blade nozzle.

Background

The nozzle is a key component of various spraying, oil spraying, sand blasting, spraying and other equipment, and mainly guides the medium to be sprayed according to the structure of the nozzle and changes parameters to a certain extent when spraying, so that the sprayed medium achieves a required effect.

In a nozzle for injecting liquid, the reduction of the cross-sectional area of the liquid flow reduces the pressure in the liquid and increases the flow velocity, the increase of the flow velocity increases the Reynolds coefficient in the liquid flow, the change causes the liquid flow in the nozzle to be converted into turbulent flow, and the vortex phenomenon is generated by the liquid flow because the water flow in the liquid flow is free to move, so that the kinetic energy in the liquid flow can be converted into other forms of energy, the kinetic energy in the liquid flow is reduced, and the flow power is weakened.

In the nozzle of patent number CN 201920381184.9, in order to solve the great clearance that leads to the contact surface of part error for the medium infiltration leads to the condition of product damage, this patent changes the nozzle into the cylinder, and the hole diameter of nozzle hole increases, and macropore and aperture have been seted up to the nozzle holder, and macropore and aperture form the step, and macropore degree of depth is high unanimous with the nozzle, and nozzle holder link firmly through interference fit, are convenient for change the part.

When the nozzle is used, the flow speed of liquid flow is increased due to the reduction of the flow area, meanwhile, the Reynolds coefficient of the liquid flow is increased, the liquid flow is enabled to move freely in a microcosmic mode, vortex flow is generated, the kinetic energy of the liquid flow is lost, the scattering degree and the turbulence degree of the liquid flow emitted by the nozzle are improved, the equipment load is required to be improved for ensuring that the sprayed liquid flow achieves an ideal effect, and the service life of equipment is reduced due to phase change.

Disclosure of Invention

The present utility model has been made in view of the above problems occurring in the prior art, and an object of the present utility model is to provide a nozzle with a blade structure attached to the front end of the nozzle.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a blade nozzle, includes the main part and runs through the runner of main part, main part and runner divide into installation section, convergent section and rectification section, be provided with a plurality of rectification blades in the rectification section runner.

In the blade nozzle, the mounting section and the tapered section are integrated, and the rectifying section is welded on the tapered section.

In the blade nozzle, the flow passages in the mounting section and the rectifying section are cylindrical.

In the blade nozzle, the tapered section flow channel is in a truncated cone shape, the outer diameter of the tapered section is reduced from the outer diameter of the mounting section to the outer diameter of the rectifying section, and the inner diameter of the tapered section is reduced from the inner diameter of the mounting section to the inner diameter of the rectifying section.

In the blade nozzle, the mounting structure is arranged at the tail section of the outer surface of the mounting section.

In the blade nozzle, the length of the rectifying blade is smaller than the length of the rectifying section.

Compared with the prior art, the utility model has the advantages that: the flow channel of the conventional nozzle is additionally provided with the rectifying blade structure to dredge the accelerated turbulence, so that the movement of the liquid flow tends to be in the same direction, the generation of the vortex is hindered, the energy loss is reduced, and the scattering degree and the turbulence degree of the liquid flow are reduced.

Drawings

FIG. 1 is a schematic view of a blade nozzle;

FIG. 2 is a cross-sectional view of a blade nozzle;

wherein, 1, a nozzle; 2. a flow passage; 3. a mounting section; 4. a tapered section; 5. a rectifying section; 6. a thread; 7. rectifying blades.

Description of the embodiments

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 to 2, the present utility model can be implemented by the following technical schemes: the blade nozzle comprises a nozzle 1, a flow channel 2 is formed in the nozzle 1, the nozzle 1 and the flow channel 2 are divided into three sections, the nozzle comprises a mounting section 3, a convergent section 4 and a rectifying section 5, and a rectifying blade 7 structure is arranged in the flow channel of the rectifying section 5.

After the blade nozzle is mounted on the device, the liquid flow conveyed by the device enters the flow channel 2 of the nozzle 1, enters the convergent section 4 from the mounting section 3, and the flow velocity of the liquid flow is increased due to the reduction of the flow area of the liquid flow, so that turbulent flow is formed in the liquid flow, the liquid flow forming turbulent flow enters the rectifying section 5, the liquid flow is combed by the rectifying blade, and the turbulent flow direction tends to be in the same direction, so that the scattering degree and the turbulence degree of the liquid flow sprayed out are reduced.

Further, as shown in fig. 1 and 2, the mounting section 3 and the tapered section 4 of the nozzle 1 are integrally manufactured and formed, and the rectifying section 5 is connected with the mounting section 3 and the tapered section 4 by welding. Because the length of the rectifying section 5 is overlong, and the rectifying blades 7 are arranged in the flow channel of the rectifying section 5, the nozzle 1 is directly produced directly through an integrated mode, so that the manufacturing process is more complicated, the nozzle 1 is divided into a plurality of parts to be simultaneously processed, and finally, a finished product is manufactured through welding, so that the production cost is reduced.

As shown in fig. 1 and 2, the flow passage 2 in the mounting section 3 and the rectifying section 5 is cylindrical. The cylindrical flow channel 2 enables the water pressure in the liquid flow to be uniformly distributed on the nozzle 1, and prevents the nozzle 1 from deforming.

As shown in fig. 1 to 2, the shape of the tapered section 4 and the flow channel 2 are both made into a truncated cone shape, the outer diameter of the tapered section 4 is reduced from the outer diameter of the mounting section 3 to the outer diameter of the rectifying section 5, and the inner diameter of the tapered section 4 is reduced from the inner diameter of the mounting section 3 to the inner diameter of the rectifying section 5. The truncated cone shape design of the tapered section 4 not only connects the installation section 3 and the rectifying section 5, but also gradually reduces the area of the flow channel 2, reduces the eddy current generated when the area of the flow channel 2 changes suddenly, and reduces the power loss in liquid flow.

As shown in fig. 1 and 2, the end of the outer surface of the mounting section 3 is provided with a threaded 6 structure for mounting on equipment, and the mounting structure is not limited to this type, and may be fixed by bolting or fixed to the equipment by a metal fixing belt.

As shown in fig. 2, the length of the rectifying blade 7 is smaller than that of the rectifying section 5, and the design prevents the liquid flow passing through the tapered section 4 from contacting with the rectifying blade 7, so that not only can the rectifying effect not be formed, but also vortex can be formed around the rectifying blade 7, and the scattering degree and the turbulence degree of the liquid flow are increased.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although various terms are used more herein, the use of other terms is not precluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims (6)

1. The utility model provides a blade nozzle, includes nozzle (1) and runner (2) that run through nozzle (1), its characterized in that, nozzle (1) and runner (2) divide into installation section (3), convergent section (4) and rectification section (5), be provided with a plurality of rectification blades (7) in the rectification section runner (2).

2. A blade nozzle according to claim 1, characterized in that the mounting section (3) and the tapering section (4) are integrated, the rectifying section (5) being welded to the tapering section (4).

3. A blade nozzle according to claim 1, characterized in that the flow channels (2) in the mounting section (3) and the rectifying section (5) are cylindrical.

4. A blade nozzle according to claim 1, characterized in that the flow channel (2) of the tapered section (4) is in a truncated cone shape, the outer diameter of the tapered section (4) is reduced from the outer diameter of the mounting section (3) to the outer diameter of the rectifying section (5), and the inner diameter of the tapered section (4) is reduced from the inner diameter of the mounting section (3) to the inner diameter of the rectifying section (5).

5. A blade nozzle according to claim 1, characterized in that the outer surface end of the mounting section (3) is provided with a thread (6).

6. A blade nozzle according to claim 1, characterized in that the length of the fairing blade (7) is smaller than the fairing section (5).