Ink jet device for the atomization of liquids

 

(57) Abstract:

Usage: in the pneumatic device for the atomization of liquids. The inventive ink jet device for the atomization of liquids in the supply line fluid jet set the oscillation generator. In the Central hole of the outlet of the air-liquid mixture coaxially with it installed an air nozzle connected to the supply line of the air. 2 Il.

The invention relates to pneumatic devices and, in particular, to a device for the atomization of liquids.

Known vortex jet [1], having a tangential air supply and a Central outlet for exit of swirling air. Also known centrifugal atomizer for spraying a liquid [2], in which the liquid medium enters through a tangential inlet and sprayed out through the Central outlet. As in the jet element and the centrifugal nozzle used effect zavarivanje served in their environment and at the outlet or the air curl or flame spray. However, these devices have only one channel regulation - the change in the flow rate supplied to the device environment, which creates significant difficulties in the definition solution is jet vortex amplifier [3] . This device is an ink-jet vortex element having two supply: radial and tangential, and a twist of the environment goes through a Central outlet. When the flow through the radial fluid supply and through a tangential inlet - air liquid will actively circulating air flow and to break up into droplets, resulting in the output of the element is in a Central challenge will be the torch air-liquid mixture.

Describes the known device has two channels of control: change fluid flow rates and air, which expands the range of regulation of single-channel device, however, does not exhaust all possibilities for regulation device for spraying a liquid.

In this regard, the most important task is the creation of an inkjet device for the atomization of liquids with greater control of its parameters.

The technical result of the claimed ink-jet device for the atomization of liquids is the enlargement of the control range by increasing the number of control channels, which improves the effectiveness and versatility of this device.

Specified-the eve of the element with a radial supply of a liquid, tangential air supply, the Central tap of the air-liquid mixture supply line fluid and air supply line fluid jet set generator of oscillations, and in the Central hole of the outlet coaxially with it installed an air nozzle connected to the supply line of the air.

Installation of jet oscillation generator supply line fluid provides the pulsating nature of the flow of the liquid at the entrance of the vortex element, which leads to introduction into the fluid flow more turbulent perturbations, which in turn facilitates the process of crushing the liquid and increases the degree of dispersion in the output.

The oscillation frequency of the jet generator is regulated easily by changing the parameters of the feedback that provides the appearance of a new control channel of the device for the atomization of liquids.

Install the air nozzle connected to the supply line of the air in the Central hole of the outlet coaxial with him leads to the appearance of the inside of the hollow torch air-liquid mixture stream of air, which ejective inside liquid droplets, thereby increasing the uniformity of distribution of the particles is in the ejection of fluid particles inside the air flow, leads to contraction of the torch air-liquid mixture, to reduce the camber angle of the torch, which provides the ability to control the volume of the torch and the surface of its end cut.

The intensity of ejection process depends on the speed of the air flow that is easily adjustable. Thus, there is a new control channel of the device for the atomization of liquids.

Conducted by the applicant's analysis of the prior art, including searching by the patent and scientific and technical information sources and identify sources that contain information about the equivalents of the claimed invention, has allowed to establish that the applicant is not detected similar, characterized by signs, identical to all the essential features of the claimed invention, and the definition from the list of identified unique prototype as the most similar set of features analogue has identified a set of essential towards perceived by the applicant to the technical result of the distinctive features in the claimed object set forth in the claims.

Therefore, the claimed invention meets trebovaniya the requirement of inventive step was conducted an additional search of the known solutions in order to identify signs, coinciding with distinctive, the results of which show that the claimed invention is not necessary for the expert in the obvious way from the prior art.

Therefore, the claimed invention meets the requirement of "inventive step".

In Fig. 1 shows a diagram of the device of Fig. 2 is a diametrical section of a vortex element.

Ink jet device for the atomization of liquids consists of jet vortex element 1 having radial fluid 2, the tangential air supply 3, the Central outlet of the air-liquid mixture 4, the supply lines of the liquid 5 and 6 air, jet oscillation generator 7 that is installed in the supply line of the liquid 5, the air nozzle 8, coaxially mounted in the Central hole of the outlet 4 and connected to the supply line of the air 6.

At the exit of the jet vortex element (Fig. 2) has a hollow torch air-liquid mixture 9 from the camber angle and the air stream 10 exiting the nozzle 8.

Jet generator of oscillations (Fig. 1) has output channels 11 associated feedbacks 12 control channels 13, atmospheric channels 14 connected to the supply line of the liquid 5.

Inkjet and power 5 passes through the jet oscillation generator 7, where its course becomes a pulsating character. And as a generator of oscillations used jet generator flow meter, as in the conventional ink-jet generator [3, S. 327, Fig. 7.12.b] inevitable loss of fluid through the atmospheric channel. Therefore, the proposed device to avoid loss of liquid applied pressurized flow meter, in which the output is atmospheric channels 14.

Moreover, if in the jet generator flowmeter variable argument is consumption, and function (measured value) is the oscillation frequency, the proposed device variable, adjustable parameter is the frequency of oscillation determined by the characteristics of backward linkages 12, at a given flow rate.

Thus, setting (adjusting) the frequency of the oscillation generator, you can get different nature of the pulsations of the liquid at the entrance of the vortex element and to provide the desired degree of dispersion (crushing) of the liquid at its output. The degree of dispersion of the liquid at the output leads, for example, as a coating of paint products, when the fluid is paint.

When receiving the pulsating fluid flow inside the jet vidcast by means of an air stream, directed to the fluid flow at a right angle and centrifugal spin of the air-liquid vortex. Obtained air-liquid vortex 9 out of the Central outlet 4 in the form of a hollow cone with an angle of collapse . Therefore, the uniform distribution of fluid particles in a slice of the cone low (their density on the periphery of the high, low and inside), which leads to poor quality coating.

Feeding air stream 10 flowing from the nozzle 8, the inside of a hollow cone (torch) air-liquid jet 9, provide the ejection of fluid particles by the air stream 10, which reduces the density of particles at the periphery of the torch 9 and increases their density on its axis. Thus improving the quality, for example, coatings for painting products.

In addition, the process of ejection of the air stream 10 particles of fluid from the jet 9 pulls the torch air-liquid mixture, reducing the angle of its collapse , thus reducing the volume and the area of its end cut. This allows you to control the shape of the torch, the area of simultaneous coating particles of liquid, for example, okrashivaemoy surface, the thickness of the coating applied at a given point of the surface, since the thickness of the coating depends upon constant the time, the introduction of the oscillation generator and air nozzles in the ink jet device for the atomization of liquids provides the appearance of an additional new channels regulate the whole device that extends the range of its regulation, which ultimately can increase the degree of efficiency and versatility of the device.

Thus, the above data confirm that the implementation of the use of the claimed invention the following cumulative conditions:

- a means of embodying the invention in its implementation, is intended for use in industry, which uses a pneumatic system for atomization of liquids, in particular when applying coatings;

for the invention as it is characterized in the claims, confirmed the possibility of its implementation using the above in the application of tools and techniques;

- a means of embodying the invention in its implementation, is able to achieve perceived by the applicant of the technical result.

Therefore, the invention meets the requirement of "industrial applicability".

Inkjet device for raspily the m air the Central tap of the air-liquid mixture supply line fluid and air, characterized in that the supply line fluid jet set generator of oscillations, and in the Central hole of the outlet coaxially with it installed an air nozzle connected to the supply line of the air.

 

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