ES2323823B1 - SEPARATOR DEVICE OF ELECTROSTATIC PARTICLES. - Google Patents

Abstract

Particle separating device electrostatic, which includes an electrostatic filter (2) with: a gas inlet (4) and a gas outlet (6); a circulation channel (8), with a channel input (8a), which is linked to the gas inlet (6), a final outlet of the channel (8b), as well as a intermediate zone of the channel (8c), which is arranged between the channel input (8a) and the final channel output (8b), and is conformed expanded with respect to these; two collector electrodes plate-shaped (10, 12) opposite each other and separated by a distance, which form two side walls of the canal circulation (8) opposite each other and separated by a distance, and are connected to a first electrical potential; a body as a circulating bar around it (16), which is arranged in an enlarged intermediate zone of the channel (8c), and the partially occupies, and is connected to a second potential electric; and an ionization device with at least one electrode discharge (18), which is arranged in the entrance area of the channel (8a). The device is characterized because the body to bar mode (16) is a gas impermeable body, and because the final channel outlet (8b) forms a gas outlet (6), so that said gas outlet is arranged in the circulation channel (8) in a final zone of the same, taking as reference the flow direction

Description

Particle separating device electrostatic

Technical field

The present invention relates to a electrostatic particle separating device according to general concept of claim 1.

State of the art

Through US 6 932 857 B1 it is known an electrostatic particle separator device for cleaning of a gaseous medium, especially air, contaminated by particles, corresponding to the general concept of the claim 1. This device comprises an electrostatic filter with: a gas inlet and gas outlet; a circulation channel, with a channel inlet, which is connected to the gas inlet, a final exit of the channel, as well as an intermediate zone of the channel, the which is arranged between the channel input and the final output of the channel, and is shaped enlarged compared to these. He electrostatic filter also has two collector electrodes with plate shape, arranged opposite each other and separated by a distance, which form two side walls of the canal circulation opposite each other separated by a distance, and They are connected to a first electrical potential. In addition, the filter electrostatic is provided with a rod-like body around it, which is arranged in the area expanded intermediate channel, which it occupies partially, and is connected to a second electrical potential. And finally the electrostatic filter has an ionization device with at minus a discharge electrode, which is arranged in the area of the channel entrance. In document US 6 932 857 B1 mentioned previously, the gaseous medium flows through the device Thanks to natural convection. And the body as a bar circulatable around it is configured as a filter gas permeable barrier, which forms the gas inlet of the device. Due to this arrangement, the gas outlet is It is then in the intermediate zone of the canal. And the direction of the flow of gas flowing through the channel must be diverted approximately 90º, so that it can leave the device through the barrier filter. Final exit True channel serves only as an overcurrent channel, in case several of such circulation channels with the configuration exposed, of which each presents a barrier filter by way of of bar of such characteristics, were united in series. A part of the gas that does not flow through the first barrier filter continues then flowing through the first final exit of the channel to the second barrier filter. Instead, there comes a part of the gas through the second barrier filter, while another part of the gas, which has not left through the second filter of barrier, flows through the second final exit of the channel towards the following barrier filter, etc. Finally, the last part of the gas then flows to the outside of the device through the last barrier filter Thus, in such a configuration features, the gas must leave the device so continue through the barrier filters, which then They work accordingly in parallel. Therefore, the exit end of the channel as such never forms the gas outlet of the device.

Due to the mode of construction and of operation described, a device with these characteristics is very bulky and quite expensive in relation to its construction, so that until now it has only been used for Large industrial applications. It has also been shown that a device with such characteristics does not offer a result Optimum of its separating and cleaning function. Also this device is very loud during operation.

In addition, separating devices are known. of electrostatic particles of the type described above, whose Cleaning is very difficult.

Description of the invention

Thus, the invention aims at resolution of the technical problem related to the achievement of a compact electrostatic particle separating device with a improved result of its separating and cleaning function, as well as low noise emissions, which can also be used to mobile home applications.

This goal is achieved through a device according to the invention with the features of claim 1. This electrostatic particle separator device for cleaning of a gaseous medium, especially air, contaminated by particles comprise an electrostatic filter with: an inlet of gas and a gas outlet; a circulation channel, with an entrance of the channel, which is connected to the gas inlet, a final outlet of the channel, as well as an intermediate zone of the channel, which is arranged between the channel input and the final channel output, and It is shaped enlarged compared to these. The filter electrostatic also has two collector electrodes with shape of plate and opposite to each other separated by a distance, the which form two side walls of the circulation channel opposite each other separated by a distance, and are connected to a first electrical potential; and a body by way of Circulable bar around it, which is arranged in the area expanded intermediate channel and partially occupies it, and is connected to a second electrical potential. In addition, the filter Electrostatic device has an ionization device with at least one discharge electrode, which is arranged in the channel entrance area. The device is characterized because the bar-like body is a gas impermeable body; and the final outlet of the channel forms the gas outlet, so that said exit is arranged in the circulation channel in an end zone thereof, taking the flow direction as a reference.

The potential difference between the first and the second electrical potential can be produced through a source of direct current or an alternating current source. In al less a preferred embodiment, the polarity of the source DC current can be reversible.

Keep in mind that the expression "zone extended intermediate channel "refers to the shape geometric of the intermediate zone of the channel. "Expanded" no therefore necessarily means that the same cross section of the circulation channel current is extended in this area with respect to other areas of the channel (however, this may be understood in at least one embodiment). This is conditioned by the fact that the body as a bar Gas impermeable is arranged in the enlarged intermediate zone of the Chanel. The actual cross section of the flow in the area expanded intermediate channel is therefore influenced so important for the dimensions or, what is the same, for the body diameter as a bar.

The ionization device serves to ionize the particles found in the gaseous medium to be cleaned. The discharge electrode of the ionization device, that forms around itself a loading area to load the particles found in the gaseous medium, may be formed as one or several wires, or also in the form of a elongated element provided with needles, spikes, teeth or other edges sharp or pointed, or similar, or also in the form of a net or a grid. The shape of the collector electrodes with plate shape, which form a particle collecting zone, adapts to the shape of the circulation channel and its area intermediate channel Plate-shaped collector electrodes They can be composed of one or more pieces. These electrodes they advantageously have a curvature that is formed from their plane corresponding plate, and forming the enlarged intermediate zone of the channel, in which said body is arranged by way of Circulable bar around it. "Circulable around you" means that between the outer surface of the body as a rod and plate-shaped collector electrode walls opposite to said outer surface there is a free space. Thus, the bar-like body forms an obstacle to the flow, around from which the gaseous medium and the contained particles must circulate  in it when passing through the extended intermediate zone of the channel of the circulation channel. Or, put another way, in the area of body as a bar, the current is divided into two currents partial, which then circulate through two arms Partial circulation channel. The body as a bar Circulable around it is formed of one or several pieces, and preferably extends over the entire height of the channel of circulation and parallel to the adjacent side walls of the same. Said body can be hollow inside, or also It can have a full cross section. Body diameter as a gas impermeable bar it is formed along its length preferably steadily and in the same way; he diameter and shape of this body may vary for cases of concrete application, but also locally.

In order to avoid flow resistance too large, a) the diameter or width dimensions of the body as a bar, b) the width and shape of the area expanded intermediate channel, and c) the cross sections of the flow of those areas of the channel that are interspersed and connected to continuation of the extended intermediate zone of the channel combine some with the others in such a way that the cross sections of the flow of the two partial arms mentioned above is correspond together approximately with the section transverse flow of intercalated channel areas or connected then or are also somewhat smaller than these. In the extended intermediate zone of the channel, the distance between the outer surface of the body as a rod and the electrode corresponding opposite plate-shaped collector corresponds therefore approximately half the distance between plate-shaped collector electrodes in an area of the channel that is interspersed or connected next to the intermediate zone expanded channel.

This configuration is especially advantageous for the separation of those particles that flow coming from the entrance of the channel exactly in the middle, between two plate-shaped collector electrodes opposite each other. These particles need the most technical path in the state of the art long to influence one of the collector electrodes and be captured by these. On the contrary, as a consequence of the body as a gas impermeable bar of the device according to the invention, these particles are diverted since they flow into the inside the extended intermediate zone of the canal to one of the partial arms mentioned above, which is about half as narrow as the canal area of the which the particles came from.

Already through this diversion effect and the dominant flow conditions around the body by way of bar, the distance of the particles from the electrodes collectors is sharply reduced. Since the body by way bar is also connected to the second electric potential of simultaneously the mentioned particles are directed by electrostatic forces towards the collector electrodes. Because the small comparison distance between the outer surface of the body as a bar and the opposite wall of the electrode corresponding collector, these electrostatic forces are also relatively high, which instead increases the collecting effect and separator. The effects described in the previous paragraph are supported also in the characteristic of the body as a bar device according to the invention described below.

Since the body as a bar is gas impermeable, contrary to what happens in the document US 6 932 857 B1 and, therefore, does not form the gas outlet of the device or cannot form it, the flow behavior is totally different compared to US 6 932 857 B1. In US 6 932 857 B1, or the entire media flow gas or at least an important part of it will flow directly or radially or helically towards the body by way of gas permeable bar and configured as a barrier filter or, what which is the same, towards its outer surface, and inside the body / filter On the contrary, in the invention the current of the gaseous medium will not flow directly to the body by way of bar and its outer surface, but, since said body is gas impermeable, it will do so primarily and essentially tangential along its upper surface and next to the body. This has, in joint action with the second electric potential, to which the body is connected as a bar, an effect Special advantageous. In reference to this, it should be observed first that the second electrical potential is chosen and combined with the first electrical potential in a way convenient such that particles charged or ionized by the discharge electrode of the ionization device are conducted towards the plate-shaped collector electrodes. Casually, This is also the case in US 6 932 857 B1.

However, the inventors of the present device have recognized that in US 6 932 857 B1, due to the fact that there the body as a bar is a filter gas permeable barrier, which forms the gas outlet of the device, and the current is strongly diverted so continuous, there is always a component of the current flowing exactly opposite to the direction in which you force electrostatic conduct the charged particles towards plate-shaped collector electrodes. In other words, in the case of document US 6 932 857 B1, the aerodynamic forces of the current work continuously and forcefully against the electrostatic forces that must cause the process of electrostatic separation and cleaning. For this reason, the performance in terms of electrostatic separation and cleaning refers to the previously known device is quite low.

Since in the device according to the invention the body as a bar is impermeable to gas, there is no consequently no current entering the body or flowing directly to or on the upper surface thereof. Consequently, there are also no aerodynamic forces of importance of acting directly against the forces electrostatic necessary for the separation effect electrostatic, and that hinder the transport towards opposite plate-shaped collector electrodes of particles ionized or charged in the gaseous medium that circulates Thus, a significantly higher performance is achieved in referring to electrostatic separation and cleaning.

In addition, we must bear in mind that, as consequence of the gas impermeability of the body by way of bar and the type of construction of the device according to the invention described above, charged or ionized particles, which coming from the entrance of the channel flow towards the body by way of of bar arranged in the intermediate zone of the channel and connected to the second electric potential, they are stopped by forces electrostatic Consequently, said particles flow after slowed form along the body and electrodes collectors, while electrostatic forces, which conduct the particles towards the electrodes plate-shaped collectors, act on said particles essentially at right angles to the direction of the flow. In the case of a distance between the body as a bar and the adjacent collector electrode or between collector electrodes fixedly opposite each other, so consequently the path measured in the flow direction is reduced that the particles travel until they reach as the corresponding plate-shaped collector electrode is expected. In this way, you can increase the performance in terms of electrostatic separation and cleaning with a length Default circulation channel. Moreover, of this mode it is also possible that, in the case of the same performance relating to electrostatic separation and cleaning, it reduce the length of the circulation channel between the electrodes plate-shaped collectors and, thus, set to provision a more compact device. This is especially advantageous if the device is configured as a mobile appliance (see also below). And, in the case again of a predetermined length of the circulation channel, it is even possible to increase the distance between the electrodes plate-shaped collectors opposite each other without a reduction important performance related to separation and cleaning electrostatic, which greatly facilitates the cleaning of these elements, in which the particles agglomerate.

Since in the device according to the invention the gas-like bar body does not act as an outlet device gas, but only circulates around the same, since the same final output of the channel forms the output of gas, it is also not necessary along the circulation channel a diversion of the flow of the gaseous medium so strong. The device according to the invention it works in this way in a more silent, and a lower use of energy or power is necessary to conduct the gaseous medium to be cleaned through the circulation channel or, what is the same, through the device.

Thus, the solution provided by the invention allows the achievement of a particle separator device compact electrostatics, with better separation performance and electrostatic cleaning, which can also be used Perfectly for mobile home applications. Also, the device according to the invention is manufactured, in comparison, of Simple and economical way.

Other preferred and advantageous features of the configuration of the device according to the invention are subject to the dependent claims.

Accordingly, and according to a first way of preferred embodiment of the device according to the invention, the first electrical potential, to which the electrodes are connected plate-shaped collectors, it is earth.

In another preferred embodiment of the device according to the invention, the gas inlet and outlet of gas are essentially in a plane, which preferably it also extends horizontally. To drive The gaseous medium through the device is not necessary Showy channels or ducts that extend through different blueprints. And the circulation channel between the gas inlet and the gas outlet can also be conformed with enough ease, and advantageously manufactured in relation to the production technique Through this construction, the current neither is it affected in the circulation channel, and only they produce relatively small pressure and current losses. In this way, the device works more quietly. Y in the event that the gaseous medium is forced, by example, through a fan (see below), through the circulation channel, for this a little is also necessary use of the fan, which saves energy.

In another preferred embodiment of the device according to the invention, the bar-like body gas impermeable preferably has a cross section circular. In this way, they are obtained in relation to the electrodes plate-shaped collectors technical characteristics related to the current especially advantageous, as well as an electric field shaped especially advantageously in the area of the area expanded intermediate channel, which positively influences the performance relative to separation and as a collector of device. Oval or rounded forms of the cross section.

However, for specific applications it has been shown advantageous that, in at least one other device variant according to the invention, the gas-like bar body it has a polygonal cross section, especially in the form of diamond. Ways of the cross section are also achievable that present both corner or angular zones as zones rounded.

Another embodiment is also provided. preferred of the device according to the invention, in which at least one of the plate-shaped collector electrodes is formed by a metal plate as a corrugated sheet, which presents the  minus a curvature, which forms the enlarged intermediate zone of the channel. Thus, the enlarged intermediate zone of the channel, in which the body has to be arranged as a bar, especially easily and in relation to a second plate-shaped collector electrode, which is essentially flat.

On the contrary, in another advantageous variant of the device according to the invention, both collector electrodes with plate shape are formed by a metal plate by way of corrugated sheet, which each have at least one curvature, which together form the intermediate zone expanded channel. Preferably, these two electrodes plate-shaped collectors are configured in the same way, what which simplifies the production of the device and, in case of need, also allows a simple replacement of the electrodes collectors

To facilitate the cleaning of the electrodes plate-shaped collectors, these are configured so detachable in at least one preferred embodiment of the device according to the invention. For this, the collector electrodes  They can also have a gripping element.

In this context, the advantageous character of a device according to the invention provided with a rail-like guidance system for electrodes detachable collectors, to which the electrodes are pluggable collectors, and from which the collector electrodes are removable. This guidance system may be provided, for example, in a support, in a rack or part of the housing of the device. The rail-like guidance system runs preferably in a direction of the height of the device or, what which is the same, essentially vertically with respect to the flow direction in the circulation channel.

In a further preferred embodiment of the device according to the invention, it has several channels of circulation, which are linked to each other in series each one through its channel entrance and its channel exit, and the  channel output of the last circulation channel forms the output of gas. Through this structure several cleaning stages are obtained connected in series and with several rod-like bodies placed serially. And the exit of the channel of a previous circulation channel shaped the channel entrance of the respective circulation channel which follows next. In this case, there is preferably a discharge electrode arranged at the entrance of each channel of the circulation channels connected to each other in series. The cleaning stages connected in series are arranged preferably one behind the other in the same plane, and preferably essentially in a straight line. However, it is also possible that the individual cleaning stages are arranged in series with a meander or similar shape.

Likewise, several of these can be placed systems parallel to each other, and be put into functioning.

In another preferred embodiment of the device according to the invention, it has an ozone filter added to the circulation channel. This added ozone filter it can be, for example, integrated in an area that follows continuation of the discharge electrode in the direction of flow. But the ozone filter can also be connected to continuation of the circulation channel. It is also possible that Configure the ozone filter as a barrier filter. Preferably, the ozone filter is an ozone filter. catalytic, which has a catalytically active substance which favors the transformation of ozone into oxygen. Thus, the ozone that forms during operation can be destroyed of the ionization device in the area of its electrodes discharge. Since ozone is a strong oxidizing agent, and it can advantageously destroy undesirable organic substances that they can be found in the gaseous medium and / or in the particles, it is it is preferable that the ozone filter is arranged in the channel of circulation in a final zone of the same, taking as reference the flow direction

The device according to the invention has preferably in another embodiment a fan for make the gaseous medium to be cleaned pass through the circulation channel and / or the ozone filter. The fan can be  conceived as a pressure fan or as a fan of aspiration. In the first case mentioned, the fan is advantageously coupled to the circulation channel or, what is It is arranged in its entrance area. On the contrary, in the last case mentioned, the fan is connected so advantageous following the circulation channel or, what is it same, in its final zone. By means of the fan you can increase the amount of the gaseous medium to be cleaned that passes through the device.

And finally in at least one way embodiment, the device according to the invention is configured as a portable and mobile device, thus being especially suitable for a mobile home application and for your Use in different types of installation.

Examples of preferred embodiments of the invention with additional details relating to the configuration and other advantages are described and explained in more detail to then, and referring to the illustrations attached.

Brief description of the drawings

It shows:

Figure 1: a horizontal section through a Essential partial zone of a particle separator device electrostatics according to the invention in accordance with a first embodiment; Y

Figure 2: a horizontal section through a Essential partial zone of a particle separator device electrostatics according to the invention in accordance with a second embodiment.

Description of preferred embodiments

In the description that follows and in the figures appear the same parts and components indicated with the same reference symbols in order to avoid repetitions

In figure 1 it is represented, in a section horizontal and according to a first embodiment, an area essential part of a particle separator device electrostatics for cleaning a gaseous medium, especially air, contaminated by particles P according to the invention. A system Cartesian coordinate indicates in this illustration the address longitudinal X, the direction of the width Y and the direction of the Z height of the device.

The device has an electrostatic filter 2, with a gas inlet 4 and a gas outlet 6 and a channel of circulation 8 extending between the gas inlet 4 and the outlet of gas 6. The circulation channel 8 has an inlet of the channel 8a, which is connected to the gas inlet 4, and a final outlet of the channel 8b. The circulation channel 8 is also provided with a intermediate zone of channel 8c, which is arranged between the channel 8a input and the final channel 8b output, and that is conformed expanded with respect to these areas of the channel. Further, the device is provided with two shaped collector electrodes of plate 10, 12, which are arranged opposite each other separated by a distance, and form two side walls opposite of the circulation channel 8 separated by a distance (= channel width). These plate-shaped collector electrodes 10, 12 are connected to a first electrical potential. At present exemplary embodiment, this first potential Electric is earth.

Both plate-shaped collector electrodes 10, 12 and arranged opposite each other are formed by a metal plate as a corrugated sheet, which have each one (at least) a 10th, 12th trapezoid curvature in a partial cross section, which is made by several angular deviations of the metal plate. Instead of angular and polygonal deviations of the curvature 10a, 12a that is obtained from them, obviously could be used also a rounded curvature. Along with the curvature corresponding 12a of the opposite collector electrode 12, the curvature 10a of the collecting electrode 10 forms the enlarged intermediate zone of the channel 8c. In this case, the metal plates are formed in One piece each. However, according to the embodiment of In question, they can also present several components. However, the device according to the invention is not limited to the  embodiment of the metal plates described previously. Thus, it is also possible, for example, that only one of the two metal plates opposite each other be shaped as a corrugated sheet and present (at least) a curvature, the which forms the extended intermediate zone of channel 8c respecting the distance of the two opposite metal plates.

The plate-shaped collector electrodes 10, 12 are removably shaped. To this end, the The device has a rail-like guidance system 14 for detachable collector electrodes 10, 12, to which the electrodes collectors 10, 12 are pluggable, and from which the electrodes Collectors 10, 12 are removable. For easier handling of this process, the collector electrodes 10, 12 each have a gripping element that is not shown in figure 1.

Also, the device is provided with a gas impermeable body, as a bar and circulatable to your around 16, which has a circular cross section and is arranged in the center of the extended intermediate zone of channel 8c. The bar-like body 16 extends over the entire height of the circulation channel 8, more precisely, of the intermediate zone expanded channel 8c. The bar-like body 16 is manufactured with a metallic material (here: a steel tube) or a material with metallic coating, and partially occupies the intermediate zone of the channel 8c. In addition, the bar-like body 16 is connected to a second electrical potential, in this case, at a high voltage. Also, the device is provided with a device ionization, which has a discharge electrode 18 connected to one high voltage and located in the entrance zone of channel 8a. The discharge electrode 18 is shaped in this example of embodiment as a thin metallic wire.

The final outlet of channel 8b of the circulation channel 8 forms the gas outlet 6 of the device. Taking as a reference the direction of the flow in the circulation channel, the gas outlet 6 is arranged in an end zone, that is, at one end of the circulation channel 8. And the gas inlet 4 and the gas outlet 6 are They find in a plane. However, in at least one other embodiment of the device according to the invention, the gas inlet 4 and the gas outlet 6 can also be located in different planes, depending on the structural conditions of the
device.

As further indicated in Figure 1, the device according to the invention has according to this form of realization of several circulation channels 8, each of which is linked in series to the others through its channel 8a input and its output from channel 8b, where the output of channel 8b from last circulation channel forms the gas outlet 6. For a more clearly, only two of them are represented in figure 1 these circulation channels 8. Through this structure you obtain several cleaning stages connected in series (in the figure 1 called 1st stage and 2nd or nth stage) with several bodies as of bar 16 arranged in series. And the output of channel 8b of a Circulation channel 8 above shaped the input of channel 8a of the respective circulation channel 8 that follows. In In this case, there is preferably a discharge electrode 18 arranged at the entrance of channel 8a of each of the channels of 8 circulation attached to each other in series.

Also, the device is provided with a ozone filter 20 added to the circulation channel 8, which is configured as barrier filter. The ozone filter 20 is arranged in this example of embodiment in a final zone of the circulation channel 8 that follows the electrode discharge 18 in the direction of flow, that is, at the outlet end of channel 8b and, therefore, shortly before the gas outlet 6. The ozone filter 20 is in this example an embodiment a catalytic ozone filter, which has a substance catalytically active that facilitates the transformation of ozone into oxygen.

The device also has a fan 22 to make the gaseous medium to be cleaned go through the circulation channel 8 and ozone filter 20. The fan 22 it is arranged in the area of the gas inlet 4, that is, here in the entrance area of channel 8a inside the first channel of circulation 8.

The device according to the invention is Configured as a portable and mobile device.

The operation mode of the device of the invention according to figure 1:

During device operation the fan 22 is activated, so that the gaseous medium contaminated by P particles (here, air) to be purified is forced into the electrostatic filter 2. In this way, air enters the device through the gas inlet 4, and is led into the channel of circulation 8 through the entrance of channel 8a. Flow direction of the air in the entrance area of channel 8a is indicated by an arrow S. By means of the ionization device, it is say, from its discharge electrode 18, the particles P that are found in the air are charged, that is, ionized (effect crown). Ozone is generated during the ionization process, which eliminates undesirable organic substances that can be found in air and / or particles P.

Air continues to flow with the P particles found in it from the discharge electrode 18 in direction towards the extended intermediate zone of channel 8c and the gas impermeable and bar-like body 16 which is arranged in the same. The electric field that is formed as a result of the potential difference between the first and the second potential electrical, and that extends between the collector electrodes with plate form 10, 12 and the body as a bar 16, appears indicated in figure 1 by some field lines F by way of example. It is evident that, in the zone of the entrance of the zone intermediate intermediate of channel 8c, field lines F run in the direction of the circulation channel or, what is the same, of the S flow, so that, with the corresponding polarity, the ionized particles P flying towards the enlarged intermediate zone of channel 8c and in the direction towards the body as a bar 16 they are braked by electrostatic forces and enter the area extended intermediate channel 8c slowed down.

Then the air with the ionized particles P that are in it must circulate around the body so of bar 16 in the enlarged intermediate zone of channel 8c. Thus, the current is divided into two partial currents, which flow diverted to the left and right in two partial arms 8c1, 8c2 of the extended intermediate zone of the channel 8c and around the body as a bar 16. Thus, the particles P that are in the air circulate in a slow way length of the body as a bar 16 and of the collector electrodes 10, 12, while electrostatic forces act on the P particles as a result of the shape of the electric field existing around the body as a bar 16 and the direction of field lines F essentially at right angles to to the local direction of the flow, and make them flow in the direction towards the plate-shaped collector electrodes 10, 12, where P particles are collected. The trajectory of a particle P appears in figure 1 indicated schematically by the line B.

P particles that have not been separated into this first cleaning stage is then included in the stage Cleaning next or later.

Next, the air, which contains ozone and from which the P particles have been removed, flows into the interior of the catalytic ozone filter 20, where a transformation occurs of ozone in oxygen by means of the catalytically active substance of filter 20. Then, the ozone-free and cleaned air is that is, essentially ozone free air, leaves the device at through the gas outlet 6 formed by the last final outlet of the channel 8b.

Figure 2 shows a horizontal section through of an essential partial zone of a separating device of electrostatic particles according to the invention and a second form of realization. This variant largely corresponds to the of figure 1. For greater ease, it only appears represented A stage of cleaning. Unlike in the form of embodiment according to figure 1, in the variant according to figure 2 the body as a gas impermeable bar 16 has a section polygonal transverse, that is, in this case, a section transverse elongated and rhombus shaped, whose front tips and posterior point in the longitudinal direction of the channel circulation 8, taking as a reference the longitudinal extension of the circulation channel 8. And the respective curvature 10a, 12a of both plate-shaped collector electrodes 10, 12 and opposite one the other one is adapted to the aforementioned cross section shaped rhombus and therefore has a triangular angular configuration or, which is the same, as a roof with two slopes.

The invention is not restricted to the foregoing. embodiments. Moreover, within the scope of protection of the claims, the device according to the invention also it can adopt different forms of realization to those that have been specifically described above. Thus, it is also possible provided for example, instead of the guidance system by way of lane 14, another fixing system for collector electrodes shaped plate 10, 12 that favors the flow, which allows a simple extraction and new placement of the electrodes collectors, especially for cleaning.

The reference symbols that appear in the claims, description and illustrations serve only for a better understanding of the invention, and should not Limit the scope of protection.

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List of reference symbols

2

Electrostatic filter

4

Gas inlet

6

Gas outlet

8

Circulation channel

8a

Channel Entry

8b

Final channel output

8c

Extended intermediate zone of the channel

8c1

First partial arm of 8c

8c2

Second partial arm of 8c

10

Plate-shaped collector electrode

10th

Curvature

12

Plate-shaped collector electrode

12th

Curvature

14

Rail mode guidance system

16

Gas-like bar body

18

Discharge electrode

twenty

Ozone filter

22

Fan

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B

Path of an ionized particle P

F

Field lines

P

Particles

S

Flow direction in the 8th zone

Claims (13)

1. Particle separator device electrostatics for cleaning a gaseous medium, especially air, contaminated by particles (P), which includes a filter electrostatic (2) with:

-

a gas inlet (4) and a gas outlet (6);

-

a circulation channel (8), with

-

a channel inlet (8a), which is connected to the gas inlet (6),

-

a final channel output (8b), as well as

-

a intermediate zone of the channel (8c), which is arranged between the channel input (8a) and the final channel output (8b), and is conformed expanded with respect to these;

-

two plate-shaped collector electrodes (10, 12) and opposite each other another separated by a distance, which form two walls sides of the circulation channel (8) opposite each other and separated by a distance, and are connected to a first electric potential;

-

a body as a circulating bar around it (16), which is arranged in the extended intermediate zone of the channel (8c) and occupies it partially, and is connected to a second electrical potential; Y

-

a ionization device with at least one discharge electrode (18), which is arranged in the channel entrance area (8a);

characterized because

-

he bar-like body (16) is a gas impermeable body; Y

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the final channel outlet (8b) forms a gas outlet (6), so that said gas outlet is arranged in the circulation channel (8) in a final zone of the same, taking as reference the flow direction

2. Device according to claim 1, characterized in that the first electrical potential is earth. 3. Device according to one or more of the preceding claims, characterized in that the gas inlet (4) and the gas outlet (6) are essentially in a plane. Device according to one or more of the claims set forth above, characterized in that the gas-like bar body (16) has a circular cross-section. Device according to one or more of the claims set forth above, characterized in that the gas-like bar body (16) has a polygonal cross-section, in particular, diamond-shaped. Device according to one or more of the claims set forth above, characterized in that at least one of the plate-shaped collector electrodes (10, 12) is formed by a metal plate as a corrugated sheet, which has at least one curvature , which forms the extended intermediate zone of the channel (8c). 7. Device according to one or more of the claims set forth above, characterized in that both plate-shaped collector electrodes (10, 12) are formed by a metal plate as a corrugated sheet, each having at least one curvature (10a , 12a), which together form the extended intermediate zone of the channel (8c). Device according to one or more of the claims set forth above, characterized in that the plate-shaped collector electrodes (10, 12) are removable. 9. Device according to one or more of the claims set forth above, characterized by a rail-like guidance system (14) for detachable collector electrodes (10, 12), to which the collector electrodes (10, 12) are nestable and from which the collector electrodes (10, 12) are removable. 10. Device according to one or more of the claims set forth above, characterized in that said device has several circulation channels (8), each of which is connected to the others in series by means of its entrance of the channel (8a) and of its exit from the channel (8b), and because the exit of the channel (8b) of the last circulation channel (8) forms the gas outlet (6). Device according to one or more of the claims set forth above, characterized in that said device has an ozone filter (20) corresponding to the circulation channel (8). 12. Device according to one or more of the claims set forth above, characterized in that said device has a fan (22) for causing the gaseous medium to be cleaned to pass through the circulation channel (8) and / or the ozone filter ( twenty). 13. Device according to one or more of the claims set forth above, characterized in that said device is a mobile and portable device.