SU1311741A1 - Aeroionizer - Google Patents

Abstract

The invention is intended for the ionization of air for medical purposes and allows an increase in productivity and an increase in the degree of neutralization of ions of an undesirable sign. The aeroionizer includes a housing 1, a fan 2, a diffuser 4, a ring 5 of electrically conductive material. The electrically conductive blades are mounted on a dielectric sleeve 6, connected in alternating sequence to slip rings 7 and combined into two different polarity groups. The ends of the 9 blades 2 have a knife-like shape with bevels in one direction at an angle "/ with respect to the plane tangential to the forming surface of the housing 1. The diffuser is made of a dielectric material with an electrically conductive coating on the inner surface forming the annular electrode and provided with an additional electrode a screen filter 11. The ions formed at the ends of the 9 blades are directed by air flow into a diffuser, on the ring electrode of which the ions of an undesirable sign are neutralized. At high speeds, a filter 11 connected to the ring electrode is used to more fully neutralize. 1 hp f-ly, 8 silt O) V with

Description

The invention relates to the field of aeroionization technology, namely to ionization devices or air intended for use in medical technology and air conditioning systems in industrial and domestic premises.

The purpose of the invention is to increase productivity and increase the degree of neutralization of ions of an undesirable sign.

Figure 1 shows aeroionizator, longitudinal section; FIG. 2 is a section A-A in FIG. figure 3 - view B in figure 1; figure 4 - section bb In fig.Z; 5 and 6, node 1 in FIG. Fig. 7 is an electrical circuit for connecting the fan blades to a high voltage source; Fig. 8 is a diagram explaining the principles of fan rotation and ionization of the gaseous medium.

The device comprises a dielectric cylindrical hollow body 1, a fan 2 mounted on shaft 3, and a diffuser 4. Case 1 is provided with an outer ring 5 of electrically conductive material. Fan 2 consists of electrically conductive blades isolated from shaft 3 by a dielectric sleeve 6. Fan blades 2 are connected in alternating sequence to slip rings 7 and are combined into two groups connected to opposite poles. Contact rings 7 are connected via a brush assembly 8 to a high-voltage power source (not shown), the ends 9 of the blades of the fan 2 are knife-shaped with a bevel at one side at an angle d. with respect to the plane tangential to the generatrix of the surface of the cylindrical stator (FIGS. 5 and 6). Fan 2 is centered with respect to the cylindrical case 1 with dielectric pins 10. The diffuser 4 is made of a dielectric material with an annular electrode in the form of an electrically conductive coating deposited on the inner surface connected to one of the poles of a high-voltage source.

Additionally, the diffuser 4 can be equipped with an additional electrode in the form of a mesh filter 11 connected to the same pole of the high-voltage source. The blades of the fan 2 can also be made of

five

0

five

dielectric material with metal tips connected by conductors with contact rings 7.

The device works as follows.

From the high voltage source, the potentials of positive and negative polarity through the brush nodes

8 and the contact rings 7 are fed to the corresponding groups of blades of the fan 2 (Fig. 7). In this case, in accordance with the switching scheme, the polarity of the blades of the fan 2 alternates. Due to the high electric potential of the blades of the fan 2, the gaseous medium in the area of the knife-like ends of 9 blades is ionized, while positive ions form near the ends of 9 blades with positive potential. Negative ions (Fig. 8) are adsorbed near the ends of 9 blades with negative potential. on the inner surface of the dielectric body

1 and charge its sections against the respective ends of the 9 blades positively or negatively. As a result of the supply to the fan blade

2potential the ends of the 9 blades are repelled from the same-charged areas of the housing I, pairs of forces Fj (Fig. 8) are formed, causing the fan 2 to rotate. The execution of the ends of 9 blades with a bevel is necessary to provide a predetermined direction of rotation of the fan 2. If the blades of the fan 2 were performed without

the bevel, the direction of rotation of the

It was random and it was

would be ambiguous, since when energizing from a high-voltage source, fan 2 would be in an unstable equilibrium state.

The angle of inclination oi of the ends 9 of the blades of the fan to the plane tangent to the generator surface of the cylindrical body 1 was determined experimentally from the condition of the maximum torque of the fan 2 and is 10-12.

Electrically conductive ring 5, which is provided with dielectric body 1, is necessary for increasing the stress 0

five

five

these electric fields in the end zone of 9 blades of the fan 2 and allows to reduce the potential of the blades of the fan 2 by 3-4 times compared to

, 313

air ionization, in which the specified ring 5 is missing.

The positive and negative polarity ions formed at the ends of the 9 blades of the fan 2 are only partially adsorbed on the surface of the dielectric body 1, most of them are entrained by the flow of the fan 2 and directed into the diffuser 4. As a result of applying a high voltage potential to the electrically conductive coating The source is neutralized with ions having a charge sign opposite to the potential of the electrically conductive coating (in FIG. 1, the electrically conductive coating of the diffuser 4 is connected to the negative mu pole of high voltage source, the positive ions are neutralized and n and output aeroionizer present only negative ions).

For variants of an aeroionizer with high gas flow rates in order to more fully neutralize ions of an undesirable sign, it is possible to use an additional electrically conducting strainer P connected to the electrically conductive coating of the diffuser 4,

The concentration of ions at the outlet of the aeroionizer is controlled by varying the voltage of the high-voltage source, thereby changing both the intensity of the formation of ions in the region of the ends of 9 blades of the fan 2 and the speed of rotation 117414

neither fan 2, i.e. its performance.

The invention makes it possible to increase the productivity and increase the degree of neutralization of ions of an undesirable scale.

Claims (2)

1. An aeroionizer containing a fan with an even number of blades associated with the drive, a diffuser and a high voltage source, the fan blades being made of an electrically conductive material and are connected in alternating sequence with opposite poles of a high voltage source, and the diffuser is provided with an annular electrode, which is characterized by The purpose of increasing productivity and increasing the degree of neutralization of ions of an undesirable sign is that the fan is driven by a cylindrical hollow body made of dielectric material located coaxially to the fan, on the outer surface of which a ring of electrically conductive material is placed, and the blades of the fan are made with ends, bent in a plane perpendicular to rotation, 2. The aeroionizer according to claim 1, characterized in that. diffuser provided with an additional electrode, made in the form of a mesh filter, connected to the main electrode, Fig.Z B- to Fy FIG 5 / R slip ring Ft 6 OoFig .7 Editor N. Tupitsa Compiled by V.Nazarova Tehred A. Kravchuk Proofreaders. Rogulich Order 191 A / 6 Circulation 596 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 FIG. eight