WO2001064316A1

WO2001064316A1 - Device for removing air pollution

Info

Publication number: WO2001064316A1
Application number: PCT/KR2001/000298
Authority: WO
Inventors: Jong-In Kim
Original assignee: Kim Jong In
Priority date: 2000-02-28
Filing date: 2001-02-27
Publication date: 2001-09-07
Also published as: AU3775001A; KR200190303Y1

Abstract

A device for removing air pollution which can remove substantially perfectly the environmentally harmful matters such as various smokes, fumes, dusts and the like produced at vehicles, plants, buildings and incinerators and which can remove the pollutants more perfectly with an increased sucking force for the raw flue gas and can prevent the spraying water droplets from leaving through an outlet duct is described. The invention provides a device for removing air pollution comprising a suction fan (40) for increasing sucking force; a cover (50) for blocking the outflow of sprayed water to the outlet duct (12); a return pipe (60) in communication with a lower positon of the outlet duct (12) and with the body (10); a pump (70) for returning the water collected in the outlet duct (12) to the body (10); and switching terminals (80, 81) for driving the pump (70) by becoming electrically conductive through the collected water in the exhausting port as a mediator.

Description

DEVICE FOR REMOVING AIR POLLUTION

FIELD OF THE INVENTION The present invention relates to a device for removing air pollution and particularly to a device for removing air pollution which can prevent ever growing damaging effects as global warming, climatic abnormality and ozone layer breakage due to air pollution from various fumes, dusts and the like produced at vehicles, plants, buildings and incinerators and which can remove the pollutants more perfectly with an increased sucking force for the raw flue gas and can prevent the spraying water droplets from leaving through an outlet duct to ensure an uninterrupted long term operation of the device.

BACKGROUND OF THE INVENTION

Generally, the air pollution, which concerns the air polluted by harmful substances produced by human activities in connection with the industry, traffic and the like, includes, as the major air polluting substances, sooty smoke, fumes, sulfurous acid gas from petroleum industry, hazardous gases including carbon monoxide contained in the exhaust gas from automobiles and the like. Accordingly, the prevention of air pollution is mainly intended to promote people's health and at the same time, to protect the living environment by controlling the discharge of pollutants generated in conjunction with business activity at plants or job sites and limiting the allowable range concerning the exhausting gases from automobiles .

However, because the conventional devices for removing air pollution were not satisfactory in removing the harmful matters like a variety of fumes, dusts or the like evolved from cars, factories, buildings and incinerators, the serious problem of global warming, anomalous weather, destruction of ozone layer and so on due to air pollution from those harmful substances is yet to be solved.

On the other hand, from the US patent to Schwarz et al. No. 3,948,627, there is known a liquid spraying apparatus, which includes inlet duct means for conducting a gas to means forming a chamber and outlet means for conducting said gas away from said chamber; a water pool located in the bottom of said chamber; a foraminous wall within said chamber extending transverse to the direction of gas flow and through which said gas passes in its trip from the inlet duct to the outlet duct; means for forcing said gas through said foraminous wall and means for spraying a droplet curtain of said water across the chamber between the inlet and the wall; said water droplets serving to filter, wash and cool said gas, said foraminous wall serving to prevent entrainment of large water drops in the gas stream passing therethrough; further comprising the improved features of the means for spraying water including a plurality of discs rotating in vertical planes substantially perpendicular to the flow of said gas, the lower portion of said discs being covered with said water pool; a shroud spaced from and encompassing the water covered portions of said discs, the bottom of said shroud being curved with said curve having an axis parallel but not coaxial with the axis of said discs; shield means extending partially around the periphery of at least one disc above the water level for controlling the direction of the water sprayed from said disc; means for adjusting the volume of water flow into the shroud from the pool; and scraper means extending from the shroud toward rotating for scraping excess water from the rotating discs; wherein the spacing between the discs and the shroud is greater at the points of entry into the water than at the points of exit from the water.

However, this spraying apparatus is defective in that the pollutants contained in the entering gas can not perfectly removed due to the poor sucking force caused by the fact that a sucking fan for forcefully sucking pollutant-loaded gas is not provided at the suction port. Further, there is another problem that a long-time operation is hindered due to the depletion of water stored in the water pool, as part of the sprayed water toward the vertical foraminous wall is continuously carried away with the leaving gas stream sucked by a forceful blower located behind the foraminous wall for discharging purified gas through the outlet port.

SUMMARY OF THE INVENTION

The present invention is thus intended to resolve the afore-mentioned drawbacks with the conventional arts and accordingly the object of the present invention is to provide a device for removing air pollution which can help prevent the current serious environmental problems such as global warming, climatic abnormality and ozone layer breakage due to air pollution from various fumes, dusts and the like generated at vehicles, plants, buildings and incinerators and which can remove the pollutants more perfectly with the help of an increased sucking force for the raw flue gas and can prevent the spraying water drops from effusing through an outlet duct of the device during the removing operation to ensure a long-time use of the device.

To achieve the object described above, there is provided according to an aspect of the invention a device for removing air pollution, which comprises a cylindrical body for holding water therein, with a suction port and an outlet duct as well as an injecting port and a draining port on opposite sides; a rotating vane provided rotatably within said body, for spraying water to cause the dissolution of the pollutants in the water; and a motor for driving said rotating vane; the improvement comprising, a suction fan provided in said suction port, for increasing sucking force; a cover for blocking the outflow of sprayed water to the outlet duct, said cover being provided at the lower end of the outlet duct and provided with a exhausting gap; a return pipe in communication with a lower position of the outlet duct and with the body; a pump provided in the return pipe, for returning the water collected in the outlet duct to the body; and switching terminals for driving the pump by becoming electrically conductive through the collected water in the exhausting port as a mediator, said switching terminals being arranged at an interval between them at lower positions inside the outlet duct.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 shows the perspective view of a device according to the invention,

Figure 2 shows the front view of the device shown in Figure 1 in cross section and Figure 3 shows the side view of the device shown in Figure 1 in cross section.

DETAILED DESCRIPTION OF THE INVENTION

A preferred embodiment of the invention will be described in detail below by referring to the accompanying drawings .

The body 10 is in the form of a cylinder so as to absorb pollutants effectively and easily and is filled with proper amount of water to absorb toxic matters rapidly. The body 10 is made from stainless steel, galvanized iron or synthetic resin to suit its purpose and an antifreezing solution is preferably used in the winter instead of simple water.

A suction port 11 is located at a higher elevation than the body 10 and a suction fan 40 is provided at the side of the suction portion, so that pollutant matter may be removed more perfectly due to the increased sucking force.

The suction port 11 of the body 10 is firmly connected to the outlet duct of a car, factory, building, incinerator or the like, wherein the size of the suction port 11 is suited for that of an outlet duct to which the invention is applied and the body 10 is also manufactured in such a proper size as to meet the purpose which is called for. An injecting port 13 and draining port 14 are each detachably provided with a stopper 13a and 14a and the draining port 14 is provided with a filter 14b. The filter 14b is mounted so as to allow frequent washings after removal. Thus, when the water gets contaminated, the water is drained out by opening the stopper 14a of the draining port 14. Simultaneously the filter 14b is removed for washing. When the stopper and cleaned filter are placed back in the draining port 14, the water can be introduced in the container body 10 after opening the stopper 13a of the injecting port 13.

The rotating vane 20 serves to spray water to strip toxic matters including fumes, dusts and the like off the exhaust carrier gas entering the body 10 through the suction port 11 by causing the sprayed water droplets to absorb or dissolve those harmful matters, wherein the rotating vane 20 is designed so that maximum absorption of contaminants may be attained.

The motor 30 for driving the rotating vane 20 is located outside the body 10, wherein the motor shaft 31 extends gas-tight through the body 10 to constitute the shaft for the rotating vane 20. The rotating speed of the motor 30 is preferably adjusted for optimum efficiency.

The suction fan 40 which is installed in the suction port 11 of the cylindrical body 10 plays the part of realizing a perfect removal of contaminants through the increased sucking force. In the case of installing the air pollution removing device according to the invention on small cars, the suction fans 40 are desirably omitted to ease an unreasonable load to the power output of the cars. A suction cover 50 which is installed in the lower end of the outlet duct 12, with an exhaust gap 51 provided, functions to block the discharge of sprayed water through the outlet duct 12 to the outside. The purified air is conducted to the outlet duct 12 through the gap 51.

A pump 70 is provided in the course of the return pipe 60 and this pump is actuated in the case the water collected in the outlet duct 12 exceeds a predetermined level, so that the water can be returned to the body 10 through the return pipe 60.

Switching terminals 80 and 81 are provided in the lower part of the outlet duct 12 in a vertically spaced relation and they are not normally in an electrically connected state but form an electrically closed circuit when the collected water in the outlet duct 12 builds up to these terminals, particularly the upper one so as to automatically actuate the pump 70 thanks to the water bridge.

The overall operation of the device according to the invention is described as follows.

The exhaust gases including toxic matters like various smokes, dusts and so on are drawn in the body 10 through the suction port 11 and exposed to the sprayed water droplets produced by the rotating vane 20 which is driven by the motor 30 and which sprinkles water to all directions from the water pool stored in the body 10, so that the polluting matter may be dissolved or absorbed in the water droplets.

As the particulates of dusts, powders and the like introduced in the body 10 through the suction port 11 are absorbed in the water droplets sprayed by the rotating vane 20 and settled down in the pool, only the clarified air free of pollutants can be discharged through the exhausting gap 51 to the outlet duct 12.

As described above, the emission of water drops, possibly contaminated water drops to the outside through the outlet duct 12 is substantially prevented by the cover 50, and the water collected in the outlet duct 12 is regularly returned to the bulk water in the body 10 by the pump 70, which is automatically brought into operation by means of switching terminals 80 and 81 as the latter become conductive through the water conductor between the two terminals, whereby the conservation of contaminated water pool in the body can be maintained.

Thus, the air pollutant removing device according to the invention can be used semi-permanently with an excellent environment protecting performance, particularly owing to the features that comprise an added suction fan for increased sucking force, the combination of the cover and exhaust gap and more especially the combination of the switching terminals, pump and return pipe.

It is to be understood that, while the invention was described mainly with respect to a specific embodiment, the invention is never restricted to that embodiment and a variety of modifications and alterations would be possible to a man skilled in the art by referring to the description or drawings presented here and within the spirit of the invention and thus those modifications or alterations are to fall within the scope of the invention, which scope should be limited only by the attached claim.

Claims

WHAT IS CLAIMED IS:

1. A device for removing air pollution, which comprises a cylindrical body (10) for holding water therein, with a suction port (11) and an outlet duct (12) as well as an injecting port (13) and a draining port (14) on opposite sides; a rotating vane (20) provided rotatably within said body(lθ), for spraying water to cause the dissolution of the pollutants in the water; and a motor (30) for driving said rotating vane (20); the improvement comprising, a suction fan (40) provided in said suction port (11), for increasing sucking force; a cover (50) for blocking the outflow of sprayed water to the outlet duct (12), said cover being provided at the lower end of the outlet duct (12) and provided with a exhausting gap(51); a return pipe(60) in communication with a lower position of the outlet duct (12) and with the body (10); a pump (70) provided in the return pipe (60), for returning the water collected in the outlet duct (12) to the body (10); and switching terminals (80, 81) for driving the pump (70) by becoming electrically conductive through the collected water in the exhausting port as a mediator, said switching terminals being arranged at an interval between them at lower positions inside the outlet duct (12) .