WO2002004094A1

WO2002004094A1 - Polluted ambient air filtering and purifying device

Info

Publication number: WO2002004094A1
Application number: PCT/MX2000/000026
Authority: WO
Inventors: José Eduardo TAMES Y VARELA; María Antonieta PEREA DE TAMES
Original assignee: Tames Y Varela Jose Eduardo; Perea De Tames Maria Antonieta
Priority date: 2000-07-13
Filing date: 2000-07-13
Publication date: 2002-01-17
Also published as: AU2000270421A1

Abstract

The invention relates to a novel polluted ambient air filtering and purifying device and to a method for the production and use of said device. The polluted ambient air filtering and purifying device is a strategic combination of filters already known in prior art. Said device has the aim of rendering filtering and purification of polluted ambient air more efficient by eliminating grease and oils sprayed in the air and suspended particles, by neutralizing and absorbing toxic and corrosive gases and by exterminating microorganisms and bacteria produced by pollution.

Description

CONTAMINATED ENVIRONMENTAL AIR FILTER AND PURIFIER

BACKGROUND

Nowadays filter manufacturers offer to filter the air partially by different methods and no matter what method you adopt, the air filter will always be deficient because they are designed to partially capture air pollutants.

The filter factories have focused on indoor air filtration, leaving the environment totally neglected.

Most of the filters are manufactured to retain solid particles, completely neglecting the problem of treatment of contaminating gases; and filters that are designed for gas treatment do not retain solids.

In order to eliminate these and other inconveniences, the development of the Polluted Air Filtration and Purifier was considered, which is intended to be protected by means of this application.

DESCRIPTION OF THE INVENTION

The characteristic details of this novel Filtered Air Purifier and Filter are clearly shown in the following description and in the accompanying drawings, as well as an illustration of it and following the same reference signs to indicate the parts and figures shown.

Figure No. 1 shows the arrangement of the filters, purifiers and electric suction turbine that make up the Filtered Air Purifier and Filter.

Figure No. 2 is the housing and hopper where the inner parts of the filter and purifier are contained.

According to Figures 1 and 2, the Polluted Environmental Air Filter and Purifier is internally composed of three main parts:

The first to the front where the contaminated air enters is placed the block of five filters (Fig. 1 A) that form the filter assembly and Rify the air (1, 2, 3, 4, 5).

In the second one, the hopper is placed (Fig. 2, No. 1) that connects the filter assembly with the electric suction turbine (Fig. 1 B)

In the third one, the electric suction turbine is placed (Fig. 1 B) that passes the contaminated air through the filters and purifiers

(1, 2, 3, 4, 5).

The novelty of the filter and purifier consists of the combination of five different filters already known in the state of the ^' cm ^' ca, which are located in the front, as indicated in said figure No. 1 A. The which are described below:

- meta filter ^'Oth baffle type (No. 1) that captures the fats and oils sprayed in the air, product of internal combustion vehicles. The dimensions of the filter are in accordance with the amount and degree of air pollution that is intended to be filtered and purified. This filter is reusable after test ^'s chemical cleaning. Its arrest efficiency is 94%.

- The fiberglass filter (No. 2) captures suspended particles of 10 microns. The dimensions of the filter are in accordance with the amount and degree of air pollution that is intended to be filtered and purified. This filter is disposable. A filter with an arrest efficiency of 92% must be used to obtain excellent decontamination ^' d ^* n.

- The electrostatic filter of electrostatic polypropylene fiber and self-loading polyurethane foam (No.3). The electrostatic charge is generated by the air that passes through the static fibers. Airborne particles are attracted and retained by static charges until these particles are released when the filter is washed. It retains suspended particles up to 0.3 microns. The dimensions of the filter are in accordance with the amount and degree of contamination of the air that is intended to be filtered and purified. This filter is reusable after test ^'s chemical cleaning. Its arrest efficiency is 90%

- The activated carbon filter (No. 4) that achieves the removal of gases and vapors through adsorption or chemical reaction. The molecules Complex gases are adsorbed by activated carbon, while the simplest molecules are transformed by chemical reaction with activated carbon, alumina or zeolites, impregnated with potassium perganate and potassium hydroxide. The dimensions of the filter are in accordance with the amount and degree of air pollution that is intended to be filtered and purified. The frame and the "honeycomb" are reusable, the activated carbon is replenished. It has an arrest efficiency of 92%.

- The HEPA filter (No. 5) is constructed of continuous high density paper, composed of submicrogenic glass fiber. The paper is pleated to obtain a greater filtration and purification surface, which allows reducing the air velocity, essential for ultra high efficiency filtration and purification. Eliminates bacteria and microorganisms. The dimensions of the filter are in accordance with the amount and degree of air pollution that is intended to be filtered and purified. It is disposable in the long term. Its arrest efficiency is 99.97%.

Since the polluted air has a very complex composition, to clean it, a strategic order in the placement of the filters is needed, so that it allows us to remove the pollutants from the air in groups, protecting the efficiency of each of the filters.

For that, in filtering and purifying the ambient air, the first filter removes the sprayed grease and oil from the contaminated air, thus protecting the cleaning of the other four following filters. The second retains larger suspended particles, protecting the next filter that is designed to capture smaller suspended particles. The third filter captures suspended particles up to 0.3 millimeters, this protects the next filter against the passage of suspended particles. The fourth filter is toxic gases and biocides containing contaminated air, so that the fifth filter just filter microorganisms and bacteria, providing trave ^'s of all, pure air to 99.97%.

The filter and purifier contains a turbine ele ^'ctrica suction (Fig. 1 Bj moving the polluted air to ^trave' s filter and purified ers (1, 2, 3, 4, 5). The electric turbine suction and the filters they are connected by means of a hopper (Fig. 2, No. 1) that directs the filtered and purified clean air towards the electric suction turbine (Fig. 1 B).

The capacity of the electric suction turbine is variable (170 to 10,870 cfm) and depends on the size of the filters used and the degree of air pollution that is intended to be filtered and purified.

All these parts of the filter and purifier go inside a housing (Fig. 2) of rectangular shape, of weather-resistant material, either metallic or plastic. Its dimensions depend on the size of the parts that make up this Filter and Purifier Contaminated Environmental Air Said housing must have two accesses, one for the entry of contaminated air (Fig. 2, No. 3) and another for the exit of filtered and purified air (Fig. 2, No. 4), as well as hinges (Fig. 2 No. 5) to be able to operate the lid (Fig. 2, No. 6) that is at the top, which will allow maintenance of the Filtered Air Purifier and Air Purifier. (Fig. 2, No. 2) to secure the lid The filter block is located between the front of the carcass (Fig. 2, No. 3) and the hopper (Fig. 2, No. 1). The electric suction turbine (Fig. 1 B) is placed between the rear part of the hopper (Fig. 2, No. 1) and the rear part of the housing (Fig. 2, N or. 4).

The turbine ele ^'ctrica suction (Fig. 1 B) is operated by electric current 120 or 240 volts when it comes alternating current and direct current TRA tándose works with 24 or 48 volts. The conexio'n network ele energy ^'ctrica is made ^trave' s of a cable and plug forming part of the set.

Taking into account that saturation of the filters and purifiers that form the block (Fig. 1 A) does not happen at the same time, periodic maintenance is planned consisting of block change (the used block is removed and replaced by a new one ], hopper cleaning (Fig. 2,

No. 1) and turbine ele ^'ctrica suction (Fig. 1 B). All this will be done using the upper door (Fig. 2, No. 6)

The filter and purifier blocks (Fig. 1 A) removed from each Polluted Air Filter and Purifier will be taken by the service personnel to the maintenance workshop for review. Filters or purifiers that are not reusable be exchanged for new and reusable after appropriate treatment formed ^'n a new block (Fig. 1A) along with new. In accordance with all this you get an Air Filter and Purifier

Contaminated Environmental, which has the following characteristics:

1.- Filters and purifies contaminated air both outdoors and indoors.

2.- The size of the filter and purifier will be of variable size according to the needs.

With proper maintenance, the useful life of the filter and purifier will be about ten years.

4.- The design of the filter and purifier allows it to be placed on roofs of houses and buildings, in addition to that with a suitable turbine that works with direct current it can be placed in motor vehicles.

Claims

CLAIMS Having described the invention of the Polluted Air Filter and Purifier, I consider it a novelty and therefore claim as my property the content of the following clauses:

1. The Filterer and Environmental Polluted air cleaner, particularly for decontaminating air outside and inside, characterized by comprising a block of five filters placed strate ^'and a hopper logically connecting said filter block to an electric suction turbine .

2. The Polluted Environmental Air Filter and Purifier according to claim 1, characterized in that the first filter of said block is a metal baffle filter that captures the fats and oils sprayed in the air, product of the internal combustion of vehicles. . The dimensions of the filter are in accordance with the amount and degree of air pollution that is intended to be filtered and purified. This filter is reusable after chemical cleaning. Its arrest efficiency is 94%.

3. The Filterer and Environmental Polluted air cleaner according to reivindicacio ^'n 1, wherein the second filter is fiberglass, which captures particulate matter 10 microns.

The dimensions of the filter are in accordance with the amount and degree of air pollution that is intended to be filtered and purified. This filter is disposable. A filter with an arrest efficiency of 92% must be used to obtain excellent decontamination.

4. The Polluted Environmental Air Filter and Purifier according to claim 1, characterized in that the third electrostatic filter is made of electrostatic polypropylene fiber and self-loading polyurethane foam. The electrostatic charge is generated by the air that passes through the static fibers. Airborne particles are attracted and retained by static charges until these particles are released when the filter is washed. It retains suspended particles up to 0.3 microns. The dimensions of the filter are in accordance with the amount and degree of air pollution that is intended to be filtered and purified. This filter is reusable after chemical cleaning. Its arrest efficiency is 90%.

5. The Filtered and Purified Environmental Air Purifier according to claim 1, characterized in that the fourth filter is activated carbon that achieves the removal of gases and vapors through adsorption or chemical reaction. Complex gas molecules are adsorbed by activated carbon, while the simplest molecules are transformed by chemical reaction with activated carbon, alumina or zeolites, impregnated with potassium perganate and potassium hydroxide. The dimensions of the filter are in accordance with the amount and degree of air pollution that is intended to be filtered and purified. The frame and the "honeycomb" are reusable, the activated carbon is replenished. It has an arrest efficiency of 92%.

6. The Polluted Environmental Air Filter and Purifier according to claim 1, characterized in that the fifth HEPA filter is constructed of high density continuous paper, composed of submicron fiberglass. The paper is pleated to obtain a greater filtration and purification surface, which allows reducing the air velocity, essential for ultra high efficiency filtration and purification. Eliminates bacteria and microorganisms. The dimensions of the filter are in accordance with the amount and degree of air pollution that is intended to be filtered and purified. It is disposable in the long term. Its arrest efficiency is 99.97%.

7 ^' .- The Filtered Air Purifier and Filter according to claim 1, further characterized in that a hopper and an electric suction turbine that moves the polluted air through the filters and purifiers are added. The electric suction turbine and the filters are connected by said hopper that directs the filtered and purified clean air towards the electric suction turbine.

8.- The method to manufacture an Environmental Air Filter and Purifier

Contaminated, which consists of the following stages: a) Build a rectangular housing made of any material resistant to environmental corrosion. The dimensions will depend on the size of the filters, hopper and electric suction turbine to use. The housing must have two accesses, depending on the size of the filters used, for the entry of the contaminated air and the other for the exit of clean air.

b) Make a block of five filters, located as follows: bl) Baffle type metal filter, described in claim 2. b.2) Fiberglass filter, described in claim 3. b.3) Electrostatic filter , described in claim 4. b.4) Activated carbon filter, described in claim 5. b.5) HEPA filter, described in claim 6.

c) Make a hopper to connect the filter block with an electric suction turbine that can be of the same housing material or any other corrosion resistant. The dimensions vary according to the size of the filters and the electric suction turbine and the shape can be circular or square bell.

d) Adapting an electric turbine suction capacity sufficient to pass the polluted air to trave ^'s of the filter block and the hopper always seeking the balance between power and resistance to the passage of air.

e) The turbine ele ^'ctrica suction is driven by electric power of 120 or 240 volts and when it comes AC the connec- tion to the power grid is made ^trave' s of a cable and plug forming part of the set and in the case of direct current, the connection to the electrical system of the vehicle is made through a small transformer that converts the voltage used by the vehicle to the voltage required by the electric suction turbine, 24 or 48 volts.

9.- The use of the Filtered Air Purifier and Filter according to claims 1 to 7, to efficiently filter and purify contaminated ambient air for exteriors and interiors.