GB2281230A

GB2281230A - A smoke/gas exhausting and purifying device

Info

Publication number: GB2281230A
Application number: GB9317292A
Authority: GB
Inventors: Tien-Suo Kuo
Original assignee: KUO TIEN SUO
Current assignee: KUO TIEN SUO
Priority date: 1993-08-18
Filing date: 1993-08-19
Publication date: 1995-03-01
Also published as: GB9317292D0; CA2104362A1

Abstract

A smoke/gas exhausting and purifying device comprises a wide area gas collector 10 and a gas discharging means. The gas collector is disposed near a position where unwanted smoke or gas is produced, and the gas is discharged at high pressure. Pump 13 is used to collect and compress the gas and to discharge it directly into the water contained in a water tank 14 or a sewer (20A in Fig. 3), or guide the gas flow first through a filtering means (18 in Fig. 4). <IMAGE>

Description

A SMOKE/GAS EXHAUSTING AND PURIFYING DEVICE BACKGROUND OF THE INVENTION The present invention relates to a smoke/gas exhausting and purifying device.

It is well known that general food processing factories are often filled with steam while cement factories are always filled with dust and waste gas.

Moreover, small amounts of toxic gases are often discharged in a tin-plating factory, a chemical factory or a plastic or rubber foaming factory. Also, when cooking in a kitchen, oil smoke is always produced. Such working sites are ail harmful tothe human body. Therefore, a gas exhaust is necessary in such working sites discharging the waste gas outside, However, the discharged gas or smoke will contaminate the environment and cause pollution of the air.

Conventional smoke exhausting or discharging fans can only create a weak gas sucking/discharging effect with low pressure and strong wind while no concentrative pressurized discharged or sucked gas flow can be created so that, in use, the exhausting effect of the smoke exhausting or gas discharging device will be poor due to an inwardly reversely blown wind. In such condition, the gas is unable to be discharged and will dissipate inwardly.

SUMMARY OF THE INVENTION It is therefore a primary object of the present invention to provide a smoke/gas exhausting and purifying device wherein the unwanted waste gas discharged from the exit of the gas sucking means thereof is sucked by a strong blast device or vacuum pump (or equivalent device) which creates concentrative pressurized gas flow which is then directly forced into a closed type of water tank or a sewer or is first filtered by a replaceable filtering means and then discharged outsides. As a result, the gas is first purified and then discharged to the air. Therefore, no contamination of the air and environment will take place.

According to the above object, the smoke/gas exhausting and purifying device of the present invention includes a wide area gas sucking means and a gas discharging means which can create pressurized concentrative gas flow and is disposed on an upper side or a gas discharging side of the gas sucking means, wherein the gas sucking means is disposed near a position where the unwanted gases are produced for collecting the same. A tapered tube can be formed between the gas sucking means and the gas discharging means for speeding the gas flowing therein, whereby the wide area gas sucking means and the gas discharging means together suck the harmful gas or steam or other unexpected waste gases in a weak and wide sucking surface pattern and then speed the gas flow and strongly discharge the same outside in a concentrative gas flow pattern.The discharged gas flow is directly forced into the water contained in a closed type of water tank or a sewer or first goes through a replaceable- filtering means and then discharged outsides. Therefore, the discharged waste gas is purified to prevent any contamination of the environment.

BRIEF DESCRIPTION OF THE DRAWINGS Embodiments of the invention will now be- described by way of example with reference to the drawings, in which: Fig. 1 is a schematic view of the first embodiment of the present invention; Fig. 2 is a front view according to Fig. 1; Fig. 3 is a schematic view of the second embodiment of the present invention; Fig. 4 is a schematic view of the third embodiment of the present invention; Fig. 5 is a schematic view of the fourth embodiment of the present invention; Fig. 6 is a schematic view of the fifth embodiment of the present invention; Fig. 7 is a schematic view of the six embodiment of the present invention; Fig. 8 is a schematic view of the seventh embodiment of the present invention;; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The smoke/gas exhausting and purifying device of the present invention can be widely used in various locations, for exhausting harmful gas in a factory or a kitchen outdoors. Such locations are food factories filled with steam, plating factories filled with toxic gas, PC board tin-plating factories, plastic or rubber foaming factories, general domestic kitchens, etc. For simplification, the present invention used in a domestic kitchen is exemplified hereinafter.

Please first refer to Figs. l and 2. The smoke/gas exhausting and purifying device of the present invention includes a wide area sucking means 10 installed in a kitchen, a gas discharging pipe 11 and a pressurized gas discharging means 13 which can produce concentrative gas flow, wherein in a first embodiment, the sucking means is a gas guiding funnel 10 and the gas discharging means 13 is a high power vacuum pump 13 or other equivalent device. As shown in Fig. 1, the gas guiding funnel 10 covers the left, right and rear sides of a stove or the like.The gas guiding funnel 10 is composed of a top trumpet section lOT, a relatively long back gas guiding board l0B, left and right gas guiding boards lOL, lOR and a half open front gas guiding board l0F. The funnel 10 almost covers the whole pan 30 and stove 40. A flow-speeding tube 12 with narrowed diameter is disposed at a rear end of the ventilating pipe 11 and the vacuum pump 13 is connected behind the tube 12, whereby the funnel 10 is extended to achieve a chimney-like high gas discharging effect. Even if the funnel 10 is not provided with an exhausting fan, the gas discharging effect thereof will be still very good. Therefore, the ventilating noise can be minimized and the smoke contamination in the kitchen can be eliminated.

For purifying the exhausted gas, the gas flow discharged from the pump 13 is forced into a closed water tank 14 containing clean water. The water tank 14 is provided with a water supplementing faucet 15, an over flow draining pipe 17 disposed on a side of the water tank 14 and a draining faucet 16 disposed at the bottom thereof for draining the water in the tank. The draining pipe 17 can discharge the clean gas into a sewer 20 so that the gas exhausted from the smoke/gas exhausting device will not contaminate the environment. It should be noted that the water supplementing faucet 15 can be manually operated or automatically operated along with the activation of the smoke/gas exhaust 10 for supplementing water into the water tank 14.For cleaning purposes, the watersourceof thefaucet 15 can besupplied with z detergent so that the gas flow coming from the exit of the vacuum pump 13 can stir up the water contained in the water tank, making the water tank selfcleaned. The dirt floating on the water surface can be discharged outside through the draining pipe 17 by the injected water flow of the vacuum pump 13.

In a second embodiment of the present invention, as shown in Fig. 3, most of the components thereof are identical to those of the first embodiment, while the only difference therebetween resides in that the exit 130 of the vacuum pump 13 is directly immersed into the water in a sewer 20A and the water tank 14, water supplementing faucet 15, over flow draining pipe 17 and the draining faucet 16 of the first embodiment are all eliminated.

In a third embodiment of the present invention, as shown in Fig. 4, the structure thereof as a whole is similar to that of Fig. 2, while the exit 130 of the vacuum pump 13 first goes through a filter 18 and then extends into the sewer 20. The fitter 18 can be composed of multiple layers of sponge or filtering networks or fiber papers or cloths so that the impurities in the smoke or waste gas are absorbed by the filter 18 and the discharged gas is clean gas.

In a fourth embodiment of the present invention, as shown in Fig. 5, the structure as a whole is still similar to that of Fig. 1, while the vacuum pump 13 is alternatively disposed on a top side of the funnel 10 and thus is closer to the upper side of the waste gas to be exhausted so that the waste gas exhausting effect can be enhanced. Moreover, the water tank 14 can be disposed in the kitchen or in the waste gas producing site for easy maintenance and installation.

In a fifth embodiment of the present invention, as shown in Fig. 6, the structure as a whole is still similar to that of Fig. 1, while a sucking fan 9 is disposed in the funnel 10A and the funnel 10A is alternatively mounted at a higher position so that more room is formed under the funnel lOA for operations or cooking needing more room.

In a sisth embodiment of the present invention, as shown in Fig. 7, the structure as a whole is still similar to that of Fig. 1, while the vacuum pump 13 of the first embodiment is replaced with a blast device 13A which can blast the gas from the exit thereof into the water in the water tank for cleaning the unwanted waste gas.

In a seventh embodiment of the present invention, as shown in Fig. 8, the structure as a whole is- similar to that of the sixth embodiment shown in Fig. 7, while the funnel 10A is eliminated and the power of the sucking fan 9 is increased with the sucking fan 9 directly mounted on a wall or a window. Moreover, the exit of the blast device 13A is directly immersed into the water in the sewer. The seventh embodiment is suitable for a site on which the funnel cannot be disposed and in which the produced position of the unwanted waste gas of the working table is nearer to the gas sucking opening. The gas purifying effect will be better if each working table or working station is disposed with a sucking fan 9.

According to the above arrangements, the present invention can be applied to purify the waste gases in various factories or to exhaust the steam in food processing factories in addition to the smoke exhausting/purifying functions in a kitchen. In case the exhausted waste gas or steam has a high temperature, the coil and wire of the motor of the vacuum pump or blast device can be replaced by heat-resistant wire.

In the embodiments of Figs. 1 to 4 and 6 to 8, the ventilating pipes 11,12, vacuum pump 13 and high pressure blast device 1 3A are disposed outdoors. However, in actual use, if there is difficulty in installation, all the components can be mounted in the kitchen or at a suitable position indoors as shown in Fig. 5 to achieve the same effect.

It should be noted that the above high power vacuum pump 13 and high pressure blast device 13A are only examples of the gas exhausting measures of the present invention. In actual use, other equivalent devices which can perform a gas discharging function with the exit thereof immersed in the water, for example a high speed high pressure gas discharging device, can be used.

It is known from the above that a high pressure gas exhausting device which can produce concentrative gas flow, such as a vacuum pump or high pressure blast device, is disposed at exit pipe of the smoke/gas exhausting device of the present invention. The wide area gas guiding means such as gas guiding funnel 10 or gas sucking means 9 is disposed near the produced position of the waste gas for collecting the waste gas and discharging the same. If necessary, a speeding tube 12 can be disposed between the exit and the vacuum pump 13 or the high pressure blast device 13A for forcing the gas flow to flow out at higher speed. Moreover, the pressurized gas discharging means 13 is used to discharge the waste gas to so that the gas exhausting effect of the present invention can be greatly enhanced.

Claims

1. A smoke/gas exhausting and purifying device comprising a smoke/gas sucking means and a pressurized smoke/gas discharging means which can produce concentrative smoke/gas flow, wherein the discharging means is disposed at a smoke/gas discharging side of the sucking means and the sucking means is disposed in use of the device near a position where smoke and/or gas to be exhausted is produced, for collecting the smoke/gas, a smoke/gas exit of the smoke/gas discharging means being directly immersed in a means for receiving a liquid, preferably water, or first going through a filtering means before the liquid receiving means.

2. A smoke/gas exhausting and purifying device as claimed in claim 1, wherein a tapered tube is provided between the smoke/gas sucking means and the smoke/gas discharging means, for speeding the smoke/gas flow therein.

3. A smoke/gas exhausting and purifying device as claimed in claim 1 or 2, wherein the smoke/gas sucking means is a smoke/gas sucking means which can produce a wide area of gas flow at low pressure.

4. A smoke/gas exhausting and purifying device as claimed in any preceding claim, wherein the smoke/gas sucking means is a smoke/gas guiding funnel capable of guiding and sucking gas.

5. A smoke/gas exhausting and purifying device as claimed in any preceding claim, wherein the smoke/gas discharging means is a vacuum pump.

6. A smoke/gas exhausting and purifying device as claimed in any of claims 1 to 4, wherein the smoke/gas discharging means is a high power blast device.

7. A smoke/gas exhausting and purifying device as claimed in any preceding claim, further comprising a closed tank for liquid and wherein an exit pipe of the smoke/gas discharging means extends into the tank.

8. A smoke/gas exhausting and purifying device as claimed in claim 7, wherein the liquid tank is provided with a liquid-supplementing faucet and an over-flow draining pipe which can drain the overflowing liquid and purified gas into a sewer.

9. A smoke/gas exhausting and purifying device as claimed in claim 8, wherein the liquid-supplementing faucet is operated synchronously with the smoke/gas discharging means.

10. A smoke/gas exhausting and purifying device as claimed in claim 8 to 9, wherein the liquid source of the liquid-supplementing faucet can be supplied with a detergent for facilitating the cleaning of the tank and draining pipe.

11. A smoke/gas exhausting and purifying device as claimed in any preceding claim, wherein the smoke/gas discharging means is disposed on a top side of the gas sucking means.

12. A smoke/gas exhausting and purifying device as claimed in any preceding claim, wherein the smoke/gas discharging means includes a filtering means.