RU2000520C1 - Electrostatic fan-ionizer - Google Patents

Abstract

SUMMARY OF THE INVENTION: ionizing electrodes are enclosed in a common housing. The electrodes are made in the form of pointed metal ribs evenly spaced along the inner surface of the housing and are mounted with the possibility of installation at different angles to the transverse and longitudinal axes of the fan. 3 ill.

Description

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 The invention relates to devices for creating a directed flow of ionized air, and can be used for ventilation of various rooms and interiors of vehicles.

The invention is based on the use of the well-known phenomenon (electrical effect), which, when applying a high constant voltage with a negative sign to the metal tip, the electric field near it reaches a value at which electrons exit the metal ambient air. The emitted electrons are deposited on oxygen molecules, forming negatively charged ions, which, repelled from the same charged tip, create a directed air flow (electric wind).

A device is known for ionizing, purifying and conditioning air, using this effect and representing metal tips enclosed in a common housing and electrically connected to a high voltage source.

A disadvantage of the known device is that the speed of air passing through it, and therefore its volume, is limited by the relative positions of the ionizing and accelerating tips. This is explained by the fact that, with a constant cross-sectional area of the device, the degree of ionization of air decreases both when the tips approach each other due to the mutual interaction of their electric fields, and as the distance between them increases, I sing about

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since in this case the number of tips decreases.

In addition, the pumped air leaves the device in parallel flow at a low speed, which leads to its rapid erosion in ambient air.

The aim of the invention is to increase the volume of air transported by the device and to increase the speed and stability of the ionized stream emerging from it.

The goal is achieved in that, in comparison with the known device, the electrodes that ionize the air are made in the form of pointed metal ribs uniformly placed on the inner surface of the housing and installed at certain angles to the transverse and longitudinal axes of the device.

The location of the pointed metal ribs at an angle to the transverse (diametrical) axis of the body ensures the creation of tangential forces pushing the simultaneously charged ions into spirally tapering orbits, which allows an increase in the residence time of ions inside it and, consequently, the volume of the involved into the movement of air. The installation of rib electrodes at an angle to the longitudinal axis creates a force that ejects the ions together with the air involved in the circular motion in the direction of this axis. As a result of such a double action of the charge on the ribs on the simultaneously charged ions formed with their help, the proposed device forms a stream of air swirling about its longitudinal axis. The volume of transported air, as well as the rate of its ejection and rotation are controlled by the angles of installation of the ionizing ribs indicated above with respect to the axes of the housing.

Since the arrangement of the ribs at an angle to each other in the proposed device reduces their interaction, and the ions formed with their help act on the air for a significantly longer time, involving it in a circular motion and thereby contributing to the formation of a stable jet at a higher speed, it is possible to achieve the object of the invention - an increase in the volume of air moved by the device and an increase in the speed and stability of the jet from it are obvious.

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In FIG. 1 shows a longitudinal section of a device; in FIG. 2 - also, a top view; in FIG. 3 - scan of the inner surface of the fan-ionizer casing.

The device consists of ionizing electrodes 2 located in the housing 1 in the form of pointed metal ribs mounted at an angle к to the transverse (diametrical) axis of the fan (Fig. 2) and at an angle / relative to the longitudinal axis (Fig. 3). In order to control the output parameters of the ionizer fan, the electrodes 2 are attached to the housing 1 by means of fixed hinges 3 (Fig. 1).

The device operates as follows.

When a constant current of negative polarity is applied to the electrodes 2 from a high voltage current source (not shown in the drawing), the electrons begin to flow from the sharp edges of the ribs 2 into the housing 1 and are deposited on air oxygen molecules, forming negatively discharged ions. The resulting ions, interacting with the same-charged ribs 2, repulse from them according to the Coulomb law and, moving inside the case along narrowing spiral orbits, schematically shown in Figs. 2 are simultaneously pushed along the longitudinal axis of the device, entraining neutral air molecules. As a result of such double exposure, the gas inside the housing 1 acquires the tangential and translational velocity components with respect to the longitudinal axis and leaves it with a swirling tapering jet, which increases its stability and increases the speed. With the selected geometrical parameters of the ionizer fan, the air velocity at the outlet and its degree of ionization can be controlled by changing the angles ai / installation of the ribs 2 relative to the diameter and longitudinal axis of the housing 1.

Claims (1)

The claims An electrostatic fan-ionizer, including ionizing electrodes enclosed in a common housing, with the exception that the electrodes are made in the form of pointed metal ribs evenly spaced along the inner surface of the housing and are strengthened with the possibility of installation at different angles to the transverse and longitudinal axes of the fan. (pЈ / & f