JPH06170143A - Air cleaner - Google Patents

Abstract

PURPOSE:To provide a miniature air cleaner for domestic use by means of a gas-liquid contact method. CONSTITUTION:The air cleaner is arranged in a room. The cylindrical body 2 of a gas-liquid contact part 1 is provided with an introduction port 5 of air in the tangential direction in the upper part and with a derivation port 8a of air in the lower part. The cylindrical body 10 of a droplet separation part 9 is provided with a derivation port 12 of air in the upper part and with an introduction port 8a of air in the lower part. A communication pipe 8 for connecting the derivation port 8b to the derivation port 8a is formed in the tangential directions of both cylindrical bodies 2, 9 in the view from a top face. Air is taken into the room through a fan 6 and introduced from the introduction port 5 and allowed to flow in a nearly downward spiral shape along the internal circumferential face of the cylindrical body 2. In the meantime, the air is brought into contact with droplets injected from nozzles 4. Dust contained in the air adheres to the droplets and the air is cleaned. The cleaned air is allowed to flow in a nearly upward spiral shape along the internal circumferential face of the cylindrical body 10 through the communication pipe 8 and discharged from the derivation port 12. The whole body is compactly constituted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas-liquid contact type air cleaner.

[0002]

2. Description of the Related Art There are various types of air cleaning devices,
FIG. 4 shows a gas-liquid contact system in which air and droplets are brought into contact with each other to clean the air (JP-A-57-1).
97018). The air cleaning device 11 connects the reciprocating air conduits 3 and 3'to the refrigerator 1 which is a closed space, and circulates the air in the refrigerator 1 to clean and cool the air. That is, the air in the refrigerator 1 is sucked by the fan F and sent to the cylindrical spray cooling machine 6 via the air conduit 3, and in the spray cooling machine 6, the water in the cold water tank 10 is pumped to the cold water pipe 8 by the pump P. , Water droplets are sprayed from the spray ports 9a to 9c provided in the cold water pipe 8. This allows
The air sent into the spray cooler 6 has the spray ports 9a to 9a.
While being in contact with the water droplets sprayed from c and being cooled,
Dust in the air adheres to the water droplets and is cleaned. continue,
The vertical vertical passage 7a of the cylindrical spray cooler 6 rises from the bottom to the top, and the upper outlet port 7b enters the cyclone 4 through the reflux pipe 7 into the cyclone 4 and the side wall upper inlet port 7c to enter the cyclone 4. Water drops are separated by the action of the centrifugal force, and the clean air rises from the bottom to the top in the central vertical passage 7a 'of the cyclone 4 and returns from the upper outlet 7b' to the inside of the refrigerator 1 through the reflux pipe 7 '.

[0003]

The above-mentioned conventional air purifying apparatus 11 is a facility which is premised to be applied to a large-scale space such as a refrigerating warehouse for refrigerating foodstuffs, an office, a factory, a hospital room and the like. It is an air purification system that is installed outside the processing target space and circulates air for cleaning.
Even if you try to apply such an air purification system in a general home, the equipment is large and there is no installation space,
And it is expensive and lacks practicality. Further, in the configuration in which the cylindrical spray cooler 6 and the cyclone 4 are separately provided and the configuration in which the air outlet 7b is provided in the upper part of the spray cooler 6, a large space is occupied particularly in the vertical direction. , It is difficult to make the whole compact.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a small air cleaner that can be sufficiently adopted for home use while adopting the droplet contact method.

[0005]

SUMMARY OF THE INVENTION An air purifier according to the present invention which solves the above-mentioned problems is provided with a fan for taking in indoor air, an introduction port for introducing the air sent from the fan to the upper part, and a substantially tangential direction for the lower part. A gas-liquid contact portion in which a nozzle for ejecting a liquid is arranged in a central portion of a first cylindrical body having an air outlet, a second air outlet in an upper portion, and an air inlet in a lower portion. And a liquid droplet separating section formed by adjoining the first cylindrical body adjacent to the first cylindrical body, and connecting the outlet of the first cylindrical body and the inlet of the second cylindrical body to a communication pipe. It is characterized in that the respective cylindrical bodies are connected so as to form a substantially tangential direction.

[0006]

In the above structure, the room air is sucked by the fan and introduced into the first cylindrical body of the gas-liquid contact portion through its inlet. The introduced air comes into contact with the droplets ejected from the liquid ejecting nozzle while flowing in a substantially downward spiral shape along the inner peripheral surface of the first cylindrical body, in which case dust in the air is the droplets. Adhere to. The air in the first cylindrical body flows from the lower outlet through the communication pipe into the second cylindrical body through the inlet of the adjacent second cylindrical body, flows in a substantially upward spiral shape, and then from the upper outlet. Is discharged. In this process,
Droplets to which dust in the air is attached in the first cylinder are separated and removed by centrifugal force in the first cylinder or the second cylinder, and only clean air is discharged to the outside.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 and 2, reference numeral 1 is a gas-liquid contact portion. The gas-liquid contact portion 1 is a portion for bringing air to be cleaned into contact with droplets, and has a pipe 3 penetrating a bottom portion and rising vertically upward in a central portion of the first cylindrical body 2. A large number of nozzles 4 for ejecting liquid are radially attached to a pipe 3, and the first cylindrical body 2 has an inlet port 5 tangential to the upper portion and an air outlet port 8a in the lower portion. A fan 6 that takes in indoor air around the purifier and pressure-feeds it toward the outlet 5 is provided, and a dust collecting filter device 7 is provided on the inlet side of the fan 6.

A droplet separating section 9 is adjacent to the gas-liquid contacting section 1.
Is provided. The droplet separating portion 9 has a second cylinder 10 having an air outlet 12 on the upper end surface and an air inlet 8b on the lower side, which is integrally provided adjacent to the first cylinder 2. A column 11 for guiding air in a substantially spiral shape is vertically fixed to the central portion of the second cylindrical body 10 having a structure. The introduction port 8b of the second cylindrical body 10 and the first
As shown in FIG. 2, the communication pipe 8 that connects the outlet 8a of the cylindrical body 2 of FIG. 1 is configured by a straight pipe having a tangential plane common to both cylindrical bodies 2 and 10 as a part of the pipe wall (that is, In the plan view of FIG. 2, the outer line of the communication pipe 8 is a tangent line common to both the cylindrical bodies 2 and 10. The lower part of the cylindrical body 2 of the gas-liquid contact portion 1 and the cylindrical body 10 of the droplet separating portion 9 is a water tank portion 18.
Are connected to each other through a passage 14, and a suction pipe 16 of a pump 15 provided at a lower end portion of the pipe 3 is connected to the water tank portion 1
8 is opened at the bottom. Further, the water tank 17 is connected to the water tank portion 18.

An example of the dust collecting filter device 7 is shown in FIG. This dust collecting filter device 7 has a simple mesh-shaped pre-filter 20 for taking a large amount of dust, a charging portion 21 for holding a discharge wire and a counter electrode plate, which is not shown in the drawing, and electrically charging the dust in the passing air by a discharge, dust. It has a built-in dust collecting portion 22 which is charged in the opposite polarity and which adsorbs dust by electric force, an activated carbon filter 23 for deodorization, and the like. As the dust collecting filter device 7, a thin filter medium such as a filter cloth or filter paper or a dust collecting filter device using a filled filter medium forming a filter layer may be used.

In the above air purifier, the indoor air passes through the dust collecting filter device 7 to remove some dust. In this example, large dust is removed by the pre-filter 20, charged by the charging unit 21, adsorbed by the dust collecting unit 22 by an electric force, and then deodorized by the activated carbon filter 23. The air that has passed through the dust collecting filter device 7 is
Cylindrical body 2 of gas-liquid contacting portion 1 through fan 5 by inlet 6
Is tangentially fed into the inside of the cylindrical body 2 and descends while turning in a substantially spiral shape around the pipe 3 around the pipe 3 inside the cylindrical body 2 as indicated by an arrow. It comes into contact with the fine droplets ejected from.
It should be noted that, as the fine droplets, there is also a droplet that hits the inner peripheral surface of the cylindrical body 2 and is made fine. At this time, the dust not removed by the dust collecting filter device 7 adheres to the droplets and aggregates,
It is removed by centrifugal force and settles on the bottom of the cylindrical body 2. The air from which dust has been removed by contact with the liquid droplets further flows into the liquid droplet separating portion 9 through the communication pipe 8 from the same tangential direction, and inside the cylindrical body 10 is surrounded by a cylinder 11 around the cylinder 11 as indicated by an arrow. Ascending along the inner peripheral surface of the body 10 in a generally spiral shape, the droplets having a large particle size are removed by the centrifugal force and settled at the bottom of the cylindrical body 10 of the droplet separating portion 9. ,
Clean air containing fine droplets is discharged from the outlet 12. Then, the liquid accumulated at the bottoms of the gas-liquid contacting portion 1 and the droplet separating portion 9 is circulated by being pumped to the pipe 3 by the pump 15 and jetted from the nozzle 4. Further, the gas-liquid contact portion 1
And when the liquid accumulated at the bottom of the droplet separation unit 9 decreases,
It is replenished from the water tank 17.

The dust collecting filter device 7 provided on the inlet side of the fan 6 can be omitted. Further, a filter may be provided in the middle of the circulation in order to reduce the contamination of the circulating water. In addition, we installed a cooler to cool the circulating water,
The liquid can be sprayed with cold water to allow temperature control.

[0012]

According to the present invention, it is arranged as a single air cleaner in a room, takes in room air, purifies it by a gas-liquid contact method, and then discharges it. Compared with the configuration that is installed outside the target space and circulates air for cleaning, the configuration is simplified and it can be put into practical use for home use.

Then, two cylinders are provided adjacent to each other,
The air in the room enters from the inlet of the upper part of the first cylindrical body, is sent to the second cylindrical body through the communication pipe of the lower part, and is discharged from the outlet of the upper part. Since it has a configuration that flows substantially spirally along the space, it does not take a space particularly in the vertical direction, and it is easy to make the whole compact, and it is possible to provide a small household air cleaner that can be placed indoors.

The size of the device can also be reduced by providing a communicating pipe for communicating the two cylindrical bodies so as to fit inside a common tangent plane of the both cylindrical bodies. In particular, when a straight pipe having a common tangential plane of both cylinders as a part of the pipe wall is used as the communication pipe, extremely appropriate air flow and miniaturization can be achieved at the same time.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an air cleaner showing an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a cross-sectional view of the dust collecting filter device in FIG.

FIG. 4 is a structural explanatory view showing an embodiment of a conventional air cleaning device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gas-liquid contact part 2 1st cylindrical body 3 Pipe 4 Nozzle for liquid injection 5 Introduction port of 1st cylindrical body 6 Fan 8 Communication port 8a Outlet port of 1st cylindrical body 8b Introduction of 2nd cylindrical body Port 9 Droplet separation unit 10 Second cylindrical body 11 Column 12 Outlet port of second cylindrical body 15 Pump

Claims (6)

[Claims] 1. A first fan, which has a fan for taking in indoor air, an introduction port for introducing air sent from the fan in an upper portion and a substantially tangential direction for introducing air from the fan, and an outlet port for air at a lower portion.
The first cylinder having a gas-liquid contact portion in which a nozzle for ejecting a liquid is arranged in the center of the cylindrical body, and a second cylindrical body having an air outlet in the upper part and an air inlet in the lower part. A first liquid droplet separating section adjacent to the body,
The air purifier is characterized in that the outlet of the cylindrical body and the inlet of the second cylindrical body are connected to each other by a communication pipe so as to be substantially tangential to each of the cylindrical bodies. 2. A communication pipe connecting the outlet of the first cylinder and the inlet of the second cylinder is provided inside a common tangent plane that contacts the outer surfaces of both cylinders. The air cleaner according to claim 1. 3. A straight line having a common tangent plane, which is in contact with the outer surfaces of both cylinders, as a part of a pipe wall of a communication pipe that connects the outlet of the first cylinder and the inlet of the second cylinder. The air cleaner according to claim 1, wherein the air cleaner is formed of a pipe. 4. The air purifier according to claim 1, wherein a pipe for supplying liquid is arranged in a central portion of the first cylindrical body, and the nozzle is provided on a peripheral surface of the pipe. 5. The air purifier according to claim 4, wherein a pump is connected to the pipe via a liquid supply path. 6. The air purifier according to claim 1, wherein a cylinder is arranged in a central portion of the second cylindrical body.