JP2000140547A - Dust collection/air cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove pathogenic bacteria by connecting an introduction pipe consisting of a water introduction pipe connected to a venturi part for air containing dust to pass through, to a dust collection tank and, at the same time, providing a discharge pipe in the upper part of the dust collection tank and a water storage tank in the lower part, in a device for removing dust contained in the air using a cyclonic current. SOLUTION: An introduction pipe 3 and a discharge pipe 4 are connected to a dust collection tank 2 with a water storage tank 21 provided in the lower part, but the introduction pipe 3 is connected in a direction tangential with the dust collection tank 2. In addition, a venturi part 31 is provided in the introduction pipe 3 and is linked to a water introduction pipe 32. Water is discharged to the venturi part 31 from the water introduction pipe 32 using a pump P, and water in the water storage tank 21 is filtrated by using a filter 22 to be circulated. Further, a suction device 41 is actuated to bring the air containing dust sucked from the introduction pipe 3 into contact with water by the venturi part 31, and this water is sent into the dust collection tank 2 to be separated into the water part and the dust part by a cyclonic current. At the same time, the dust is caused to drop into the water storage tank 21 and the cleaned air is discharged from the discharge pipe 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved dust collecting and air purifying apparatus for removing and cleaning dust in the air.

[0002]

2. Description of the Related Art Conventionally, a so-called dry filtration system has been widely used as a dust collector, in which dust-containing air is separated and collected through a filter medium such as filter paper, filter cloth, glass fiber or the like. This filter type dust collecting method has the advantages of high dust collecting performance, a simple structure, and easy maintenance such as filter replacement. In addition, there is a so-called centrifugal dust collector that removes dust-containing air by a cyclone flow.
This is a structure in which dust-containing air is blown in a tangential direction from the upper portion of a cylindrical portion, and is swirled along an inner wall surface, and is exhausted from a discharge pipe of the cylindrical portion by an ascending airflow generated in a central portion. When swirling inside the cylinder, the dust in the dust-containing air collides with the wall of the cylinder with a large centrifugal force, sediments, and is collected in the lower dust box.

[0003]

SUMMARY OF THE INVENTION A filter-type dust collecting apparatus is characterized in that the collecting performance changes due to the state of dust adhering to the filter, the collecting performance decreases due to clogging, the dust is periodically removed, There were problems such as an increase in maintenance costs such as replacement. Further, the filter method has fundamental disadvantages such as secondary environmental pollution in which fine dust is contained in exhaust gas, propagation of mites and bacteria, and generation of offensive odor. Also,
The centrifugal dust collector has a drawback that fine dust of about 1 μm cannot be removed as compared with the filter system, and there is also a problem that when dust accumulates on the hopper, the dust is blown up and the efficiency is significantly reduced.

[0004] From the above, conventionally, 0.1 to 0.1
In fact, it was not possible to remove ultra-fine dust of 0.3 μm and hardly functioned as a dust collector. For example, at work sites such as dental practice and dental labs,
Although dust collectors are generally used, it has been pointed out that the morbidity due to inhalation of infectious viruses and bacteria contained in teeth, metal powder, blood, saliva, etc. generated during cutting is extremely high.

[0005]

In view of the above points, the present inventor has accomplished the present invention as a result of intensive studies, and the feature of the present invention is that the present invention is based on the air introduced into the dust collection tank. In a dust collector for removing dust contained in a dust collector by a cyclone flow, an inlet pipe connected to a water inlet pipe to a venturi part provided in a part for passing dust-containing air is connected to the dust collecting tank, and There is a drain pipe at the top of the dust tank and a water storage tank at the bottom.

Here, the "dust collection tank" referred to in this specification
The term “container” refers to a container for introducing dust-containing air into the inside and collecting dust contained therein. Dust is collected inside this by a cyclone flow used in the above-mentioned conventional centrifugal dust collector. An intake pipe for introducing dust-containing air and a discharge pipe for discharging dust-free air are connected to the dust collection tank. The introduction of dust-containing air into the dust collection tank is usually performed by connecting a suction device to the discharge pipe, but is not particularly limited. In the present invention, a water storage tank is provided below the dust collection tank, and dust separated by a cyclone is stored in the water storage tank. In this case, it is preferable to provide a mesh bag in the water storage tank for the purpose of facilitating disposal of the accumulated sludge.

[0007] "Introduction pipe" refers to a pipe for introducing dust-containing air into a dust collection tank. In the present invention, a venturi portion having a reduced diameter is provided in a part of the introduction pipe, and the dust-containing air flows at a high speed of about 50 to 100 m / sec. Then, water injected from a water inlet pipe provided in the venturi section is atomized and brought into contact with dust in dust-containing air. In this way, after the dust is brought into contact with the atomized water, the dust is separated by the cyclone in the dust collection tank. In the dust collecting tank, a shower nozzle, a spray pipe, or the like may be further provided inside to collect dust. In addition, a turbulence generating section may be provided between the venturi section and the dust collection tank in the introduction pipe to increase the contact efficiency between atomized water and dust. The turbulence generating section is formed by, for example, providing a plurality of projections such as fins on the inner peripheral surface of the introduction pipe.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments of the invention shown in the drawings.

FIG. 1 shows an example of an embodiment of a dust collecting and air purifying apparatus 1 according to the present invention. An inlet pipe 3 and an outlet pipe 4 are provided in a dust collecting tank 2 provided with a water storage tank 21 at a lower portion. Are connected. The introduction pipe 3 is connected tangentially to the dust collection tank 2 in order to generate a cyclone flow in the dust collection tank 2. The introduction pipe 3 is provided with a venturi section 31 having a small diameter at a part thereof, and a water introduction pipe 32 is connected to the venturi section 31. The water introduction pipe 3
The water is discharged from the water storage tank 21 to the venturi section 31 by the pump P, and the water stored in the water storage tank 21 is filtered by the filter 22.
And is circulated by suction.

As described above, the dust-containing air sucked from the inlet pipe 3 by the suction device 41 provided on the discharge pipe 4 comes into contact with the water atomized in the venturi section 31 and the dust. The air is fed and separated by the cyclone flow, and the dust falls into the water storage tank 21, and the air that has been removed and cleaned is discharged from the discharge pipe 4.

FIG. 2 shows another embodiment of the dust collecting and air purifying apparatus 1 according to the present invention.
The shower nozzle 23 is provided in the upper part of the inside. By spraying water from the shower nozzle 23, the effect of washing out dust in the dust-containing air sent from the introduction pipe 3 can be enhanced.

FIG. 3 shows still another example of the embodiment of the dust collecting and air purifying apparatus 1 according to the present invention. The sludge collected in the water storage tank 21 and settled in water is easily discarded. Is provided. By providing this mesh bag in the water storage tank 21, the accumulated sludge can be discarded in a disposable state, and the maintenance work can be simplified. In the present example, a turbulence generator 33 having a plurality of fins is provided on the inner peripheral surface between the venturi section 31 of the introduction pipe 3 and the dust collection tank 2 so that the contact efficiency between atomized water and dust is high. I am trying to become. Further, the pump P is provided in the water in the water storage tank 21 using a submersible pump, thereby achieving compactness as an apparatus.

[0013]

As described above, the dust collecting and air purifying apparatus according to the present invention allows dust-containing air to pass through a dust collector that removes dust contained in air introduced into a dust collecting tank by a cyclone flow. By connecting an intake pipe connected to a water intake pipe to a venturi part provided in a part to the dust collection tank, and providing a discharge pipe at the top of the dust collection tank and a water storage tank at the bottom, Since the water atomized in the venturi section is brought into contact with the dust in the dust-containing air and sent to the dust collection tank to be separated by the cyclone flow, ultra-fine dust of about 0.1μ can be removed. In addition, it is possible to remove pathogenic microorganisms and prevent the generation of offensive odors, and it can be used as an air purification device by not only collecting dust but also circulating exhaust gas indoors. In particular, with the conventional filter system, high-humidity dust generated in dental care or the like, which is likely to aggregate on the filter, can be reliably and continuously collected over a long period of time.

Further, since a water storage tank is provided below the dust collecting tank, a bactericide, a deodorant, a vegetable phytoncide, etc. are added to the water storage tank so that a comprehensive air cleaning such as disinfection and odor removal can be performed. Functions can be added. Further, since the dust collecting and air purifying apparatus according to the present invention has a simple structure and can be formed extremely compact, a household vacuum cleaner can be used as a suction apparatus, and the cost is reduced and the cost is reduced. Running costs are also reduced.
In particular, the provision of the mesh bag, which is one embodiment of the present invention, in the water storage tank makes it extremely easy to dispose of the collected dust, which is a drawback of the conventional dust collector by the cyclone flow, and as a dust collector or an air purification device. Can be easily used as
These functions can be maximized.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an example of an embodiment of a dust collection and air purification device according to the present invention.

FIG. 2 is a longitudinal sectional view showing another example of the embodiment of the dust collecting and air purifying apparatus according to the present invention.

FIG. 3 is a vertical sectional view showing still another example of the embodiment of the dust collecting and air purifying apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dust collection and air purification apparatus 2 Dust collection tank 21 Water storage tank 22 Filter 23 Shower nozzle 24 Mesh bag 3 Introducing pipe 31 Venturi part 32 Water introducing pipe 33 Turbulence generating part 4 Discharge pipe 41 Suction device P pump

Claims (5)

[Claims] In a dust collector for removing dust contained in air introduced into a dust collection tank by a cyclone flow, a water inlet pipe is connected to a venturi part provided in a part of the dust collector for passing dust-containing air. A dust collection and air purification device, wherein an introduction pipe is connected to the dust collection tank, and a discharge pipe is provided above the dust collection tank and a water storage tank is provided below the dust collection tank. 2. The dust collecting and air purifying apparatus according to claim 1, wherein the dust collecting tank has a shower nozzle provided therein. 3. The dust collecting and air purifying apparatus according to claim 1, wherein the water storage tank is provided with a mesh bag for taking out sludge. 4. The dust collecting and air purifying apparatus according to claim 1, wherein the water introducing pipe is connected to a water storage tank of the dust collecting tank via a pump. 5. The dust collection and air purification system according to claim 1, wherein the dust introduction pipe includes a turbulence generating section having a plurality of projections on an inner peripheral surface between the venturi section and the dust collection tank. apparatus.