SU939108A1 - Sprayer - Google Patents

Description

(54) THE SPRAYER BY V. M. RUDENKO

one

The invention relates to devices for spraying liquids and can be used to paint, humidify air, inhalate, aerosol therapy, when spraying plants, to electrically charge or neutralize objects.

Known sprayer comprising a housing with a liquid and gas nozzles and inducing electrode I.

The disadvantages of such a device are the low dispersion of the α-obtained electroaerosol, the low droplet efficiency and the impossibility of fine control of the spraying process.

Closest to the present invention is a nebulizer containing a container for a liquid with a gas distribution grid and a gas supply connector and an electrode connected to a high-voltage source 2.

The disadvantages of this device are the insufficient degree of dispersion of the liquid, the inability to regulate the process, and the impossibility of spraying electrically conductive liquids.

Since in this case, when the electrode is located in a tank with a liquid under voltage, there is a main line supplying the liquid and all the adjacent equipment, which creates a danger to the operating personnel.

The purpose of the invention is to increase the degree of dispersion of the electroaerosol and ensure electrical safety and the possibility of fine control of the process.

Claims (4)

This goal is achieved by the fact that a nebulizer containing a container for a liquid with a gas distribution grid and a gas supply syringe and an electrode connected to a high-voltage source, 5 is equipped with a liquid supply nozzle and covering a container for liquid with a gap to it, with a dielectric cup with an additional a gas supply nipple, and the electrode is made in the form of a disk made of a hydrophilic porous material that blocks the free end of the dielectric cup, and the gas distribution grid is connected to high-voltage source. In this case, the gas distribution grid is made of a hydrophobic material and is connected to the ground / (en pole of a high-voltage source through a current relay. In addition, the inner surface of the dielectric cup is ribbed. and facing a smaller base inside the tank. The drawing shows a diagram of the device. The atomizer contains a tank 1 for a liquid with gas distribution p a grid 2 and a gas supply nozzle 3. The atomizer is provided with a dielectric cup 4 with a gas supply nozzle 5 that surrounds the liquid tank 1. The tank 1 is equipped with a liquid supply nozzle 6. The atomizer 7 is made in the form of a disk a hydrophilic porous material that overlaps the free end of the dielectric cup 4. The gas distribution grid 2 is made of a hydrophobic material and is connected via terminal 8 and a current relay 9 to a grounded pole of a high-voltage regular enrollment (not shown) that provides the ability to disable the latter in the event of breakdown in the interelectrode gap. To prevent leakage currents, the dielectric cup must have a developed inner surface, for which the latter is made ribbed (by threading, furrowing, etc.). To prevent the liquid from pouring out of the container 1 when it is tilted, the latter is provided with a ring in the form of a truncated cone, fixed with a large base at the outlet end of the container and facing the smaller base inside the container. The spray works as follows. The tank 1 is fed through a pipe 6 from a nutrient tank (not shown) with liquid, gas is supplied to it through sprinkling 3, then dispersing gas is fed through an additional fitting 5 and a high voltage to electrode 7. When gas is fed into tank 1 in a liquid bubbling bubbles are formed which, breaking down on the surface, form tiny droplets. They acquire an induced charge in the field between the electrode 7 and the grid 8 and are transferred to the electrode 7 by the forces of the air flow and the Coulomb interaction. On the electrode 7 a liquid film is formed which wets the pores. Additional gas (air) flow from additional fitting 5, passage through pores. disperses the liquid. Particles of the resulting aerosol carry an electric charge, which allows them to be controlled by movement: to sediment with effective adhesion on various objects, to evenly distribute it in closed volumes, to carry out the coalescence of oppositely charged droplets of dissimilar liquids, etc. Offered design the sprayer provides electrical safety and eliminates the possibility of short circuits due to the fact that the high-voltage electrode and the surface of the working fluid are separated by a gas gap. By selecting the ratio of gas flow rates through the bubble column and through the gap between it and the body, you can set the required size of the aerosol and the performance of its generation. By changing the magnitude and sign of the potential applied to the electrode, you can vary the charge of the aerosol. The use of the proposed device allows an adjustable process to be used to obtain a highly dispersed aerosol of electrically conductive liquids while ensuring its electrical safety. Claim 1. Sprayer containing a container for a liquid with a gas distribution grid and a gas supply nozzle under it and an electrode connected to a high-voltage source, characterized in that, in order to improve the degree of dispersion of the electrical aerosol and ensure electrical safety and the possibility of fine control of the process, it it is equipped with a liquid supply nozzle and enclosing a container for a liquid, with a gap to it, a dielectric cup with an additional gas fitting, and the electrode is made in the form of a disk made of a guide A profile of a porous material that overlaps the free end of the dielectric cup, the gas distribution grid being connected to a grounded pole of a high-voltage source. 2. The atomizer according to claim 1, characterized in that the gas distribution grid is made of a hydrophobic material and connected to a grounded pole of a high-voltage source through a current relay. 3. Sprayer according to Claim 1, characterized in that the inner surface of the dielectric cup is made of ribbed. 4. Sprayer according to claim 1, characterized in that the container is provided with a ring in the form of a truncated cone, secured