JPH07124433A - Production of air purifier - Google Patents

Abstract

PURPOSE:To improve the anion generating efficiency in a gas-liquid contact type air purifier. CONSTITUTION:Air is sucked by a fan 30 and sent to a gas-liquid contact part 14, where it comes into contact with fine droplets and dust in the air is stuck on the droplets and removed. Then, the purified air is discharged from a blowoff port 12 through an air communicative pipe 18 and a droplet separating part 16. Anions are mainly generated in the gas-liquid contact part 14. Each part from the gas-liquid contacting part 14 to the blowoff port 12 is a resin formed part. When producing an air purifier 11, after it is assembled as the air purifier 11 as shown in the figure, the air purifier 11 is actually operated while ozone is sent from a suction port 29. The ozone acts on the inner surface of each part from the gas-liquid contacting part 14 which is the resin formed part to the blowoff port 26 to remove a mold release agent, etc., existing on the surface. Since the mold releasing agent, etc., prevents the generation of anions, by removing them, the anion generation efficiency is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an air purifier for manufacturing an air purifier provided with a gas-liquid contact portion formed of a resin-made cyclone cylinder for contacting taken-in air with fine droplets.

[0002]

2. Description of the Related Art The structure of a gas-liquid contact type air cleaner is shown in FIG. 5 (see Japanese Patent Application No. 3-39608). This air purifier 10 takes in indoor air by a suction force of a fan 1 and sends it to a gas-liquid contact portion 2 by a cyclone cylinder, and in the gas-liquid contact portion 2, ejects fine droplets from an injection nozzle 3 to generate air. It has a structure in which liquid is brought into contact with the liquid and is sent to a droplet separation unit 5 which is also a cyclone cylinder and communicates via the communication port 4 to separate the droplets, and then clean air is discharged from the outlet 6. In addition,
In the figure, 7 is a pump for pumping water to the injection nozzle 3, 8 is a water supply tank, and 9 is a water tank for containing water to be injected. Conventionally, when manufacturing this type of air purifier 10,
The product was completed when the components were assembled and structurally completed as an air purifier.

It is known that the gas-liquid contact type air cleaner 10 can not only remove dust in the air but also generate negative ions which are considered to be good for health. This is a major feature of this type of air purifier. In addition, it is known that the phenomenon of generation of this kind of negative ion is called so-called Leonard phenomenon in the natural world, and occurs at the waterfront of a waterfall or a beach.

[0004]

By the way, a portion forming an air passage extending from the gas-liquid contact portion 2 to the outlet 6 of the conventional air cleaner 10, that is, the gas-liquid contact portion 14, the communicating pipe 4, and the liquid. If the component parts such as the droplet separating part 5 and the outlet 6 are made of metal, the number of negative ions generated is large. However, when using resin molded products as those components,
Immediately after production (immediately after assembly), the number of negative ions generated is as small as 4.0 × 10 ^{9 to} 9.0 × 10 ⁹ pieces / cm ^3, and a sufficient effect cannot be expected. Therefore, the inventors conducted various experiments to effectively generate negative ions, and as a result, when ozone or ozone water was brought into contact with the surfaces of the components forming the air passage for a certain period of time, the number of negative ions generated was decreased. We have found that can be increased. It is presumed that this is because the release agent used during the molding of the resin molded product such as the cyclone cylinder is removed by the action of ozone or ozone water.

The present invention has been made on the basis of the above findings, and is a method of manufacturing an air cleaner capable of obtaining an air cleaner having a high negative ion generation efficiency without being adversely affected by a mold release agent in resin molding. The purpose is to provide.

[0006]

SUMMARY OF THE INVENTION The present invention for solving the above problems produces an air purifier having a gas-liquid contact portion formed of a resin-made cyclone cylinder for bringing in air and fine droplets into contact with each other. A method for manufacturing an air purifier, comprising: assembling the components to complete an air purifier, then feeding ozone from an air inlet to form at least a resin component that constitutes an air passage of a gas-liquid contact portion. It is characterized in that ozone is brought into contact with the surface of.

The manufacturing method according to claim 2 is a method for manufacturing an air purifier, which manufactures an air purifier provided with a gas-liquid contact portion made of a resin-made cyclone cylinder for bringing the taken-in air into contact with fine droplets. After the components are assembled and completed as an air purifier, ozone water is used as a liquid to be jetted to drive.

According to a third aspect of the present invention, there is provided a method for producing an air purifier, which comprises an air purifier having a gas-liquid contact portion made of a resin-made cyclone cylinder for bringing the taken-in air into contact with fine droplets. Prior to the assembly of the air purifier,
It is characterized in that ozone is brought into contact with the surface of a resin-made component forming an air passage extending from the gas-liquid contact portion to the outlet of clean air.

According to a fourth aspect of the present invention, there is provided a method for manufacturing an air purifier, which comprises an air purifier having a gas-liquid contact portion formed of a resin-made cyclone cylinder for bringing the taken-in air into contact with fine droplets. Prior to the assembly of the air purifier,
It is characterized in that ozone water is brought into contact with the surface of a resin-made component forming an air passage extending from the gas-liquid contact portion to the outlet of the clean air.

[0010]

In the manufacturing method of the first aspect, the ozone sent from the suction port comes into contact with the surface of the resin-made component forming the air passage such as the cyclone cylinder. By contacting with ozone for a certain period of time, the generation rate of negative ions in the gas-liquid contact portion or the like can be improved. It is presumed that this is because the mold release agent and the like existing on the surface of the air passage component, which is a resin molded product, has been removed. In this case, it is presumed that the effect of removing the release agent and the like will be further enhanced if ozone is sent in the operating state in which the liquid is actually ejected.

In the manufacturing method of the second aspect, since ozone water in which ozone is dissolved is jetted at the gas-liquid contact portion, the ozone droplets act on the surface of the resin molded product such as the cyclone cylinder or the like, and the mold release agent or the like. Is supposed to be removed.

In the manufacturing method of the third aspect, it is presumed that the resin parts forming the air passages come into contact with ozone at the stage of parts to remove the release agent on the surface.

In the manufacturing method according to the fourth aspect, the resin parts forming the air passage are brought into contact with ozone water at the stage of parts, and the releasing agent and the like on the surface are removed by the action of dissolved ozone. Presumed to be.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a sectional view showing an internal structure of an air cleaner 11 to which the present invention is applied, and FIG. 2 is a plan view of the same. The air purifier 11 has a water tank 13 inside a main body case 12, and a first cyclone cylinder 15 having a cylindrical shape, which is a resin molded product such as ABS resin, which constitutes a gas-liquid contact portion 14 on the water tank 13. Similarly, the ABS forming the droplet separating unit 16
A cylindrical second cyclone cylinder 17 which is a resin molded product such as a resin is installed, and the first cyclone cylinder 15 and the second cyclone cylinder 17 communicate with each other at a lower portion by a communication pipe 18 that forms a tangential direction. There is. A pump 20 for pumping the liquid in the water tank 13 is installed on the base of the main body case 12, while
At the center of the first cyclone cylinder 15, a water pipe 21 having a lower end connected to the pump 20 is vertically arranged. Discs 22 and 23 are fixed to the outer periphery of the water supply pipe 21 at two locations on the upper side thereof, and the liquid ejected by the pump 20 is ejected toward the discs 22 and 23, respectively. 24 and 25 are provided.
The second cyclone cylinder 17 has an outlet 17a at the upper end.
A blow-out port 26 having a divergent shape is provided so as to communicate with the outlet 17a toward the front, and a rod-shaped air guide 27 is vertically provided at the center of the cylinder. A fan 30 is installed so as to face an intake port 29 provided on the front surface of the main body case 12, and the fan 30 is connected to the first cyclone cylinder 15 through a duct 31 that is tangential to the first cyclone cylinder 15. It communicates with the inlet 15a.

The operation of the air cleaner 11 having the above structure will be described. The air in the room is sucked by the fan 30 into the suction port 29.
Is taken into the interior of the gas-liquid contact portion 14 through the duct 31 from the tangential direction, and descends while spirally swirling in the gas-liquid contact portion 14, while the pump 20
And is ejected from the ejection nozzles 24 and 25 to collide with the discs 22 and 23 and come into contact with the atomized droplets. Negative ions are generated mainly in the gas-liquid contact portion 14. Dust in the air adheres to these fine droplets,
It is removed together with the droplets by the centrifugal force. Subsequently, the water having a large particle size is removed by the centrifugal force when flowing into the droplet separation unit 16 through the communication pipe 18 and spirally rising, and clean air is discharged from the blowout port 26. It

The manufacturing method of the present invention is based on the above-mentioned air cleaner 1.
1, a resin component forming the air passage, that is, the first cyclone cylinder 15 forming the gas-liquid contact portion 14, the communication pipe 18, the second cyclone cylinder 17 forming the droplet separating portion 16, and the outlet 26. Ozone is brought into contact with the surface of the like in some form, and the release agent or the like on the surface is removed by the action of this ozone. In the case of the manufacturing method according to claim 1, the air purifier 11 having the structure shown in FIGS.
2 is completed, the ozone generator 35 is operated by bringing its discharge port 35a close to the suction port 29 of the air cleaner 11 to send ozone to the suction port 29, as shown by the two-dot chain line in FIG. At the same time, the fan 30 and the pump 20 are operated to actually operate the air cleaner 11. The ozone generator 35 may adopt a method of generating ozone by discharging in air or oxygen, but may use another physical method or a chemical reaction.

After the above treatment was carried out under various conditions of ozone concentration and treatment time, the water in the water tank 13 was replaced and normal operation was performed without passing ozone, and the number of negative ions generated at that time was measured. However, the results shown in Table 1 below were obtained.

[0018]

[Table 1]

As described above, the number of generated negative ions, which was 4.0 × 10 ^{9 to} 9.0 × 10 ⁹ pieces / cm ³ in the case of no treatment immediately after assembly, was extremely short, only 10 minutes or 5 minutes. In the processing of time, 12.0 × 10 ⁹ to 2
It increases to 3.0 × 10 ⁹ pieces / cm ³ . The number of generated negative ions increases in this way because ozone acts on the surface of the resin component forming the air passage such as the first cyclone cylinder 15 to remove the release agent or the like on the resin surface, It seems to eliminate the adverse effects such as. In this case, it is effective to remove the release agent and the like while actually operating the air cleaner 11 as described above, but a process of simply feeding ozone without operating the fan 30 and the pump 20. Can also be considered. The conditions of the ozone concentration and the treatment time are not limited to the above conditions, and can be set as appropriate in consideration of other circumstances.

In the case of the manufacturing method according to claim 2, the air purifier 1 shown in FIGS.
After completion as No. 1, ozone-dissolved water, that is, ozone water, is put into the water tank 13, and the fan 30 and the pump 20
To operate the air cleaner 11. In this case, since the ozone water is sprayed in the first cyclone cylinder 15, ozone droplets act on the surface of the resin component such as the first cyclone cylinder 15 to remove the release agent and the like, and the same as above. In addition, the number of negative ions generated is increased.

According to the manufacturing method of claim 3, prior to the assembly of the air purifier 11, a resin component forming an air passage from the gas-liquid contact portion 14 to the outlet of clean air, that is, Ozone is sprayed on the inner surface side of each component such as the first cyclone cylinder 15, the communication pipe 18, the second cyclone cylinder 17, and the outlet 26 which are not yet incorporated. In this case, ozone acts on the surface of each part such as the cyclone cylinders 15 and 17, and the release agent and the like on the surface are removed.

According to the manufacturing method of claim 4, prior to the assembly of the air purifier 11, a resin component, which constitutes an air passage from the gas-liquid contact portion 14 to the outlet of the clean air, that is, Each component such as the first cyclone cylinder 15, the communication pipe 18, the second cyclone cylinder 17, and the outlet 26, which are not yet incorporated, is immersed in ozone water for a certain period of time.
In this case, the ozone water acts on the surfaces of the parts such as the cyclone cylinders 15 and 17, and the release agent and the like on the surfaces are removed.

In the case of contacting ozone or ozone water at the stage of parts before assembly, as the air passage constituent parts, in the case of the structure shown in FIG. 1 and FIG. Although the pipe 18 and the blow-out port 26 are used, other parts may be considered if the structures are different. The structure of each part of the air purifier is not limited to that shown in the drawings. Further, as the mechanism for generating droplets, in addition to causing the liquid to collide with an appropriate wall surface, a mechanism using ultrasonic vibration or the like can be adopted.

[0024]

According to the present invention, a release agent or the like that adversely affects the generation of negative ions from at least the surface of a resin component constituting the air passage of the gas-liquid contact portion by the action of ozone or ozone water. Could be removed, and the generation efficiency of negative ions could be improved. Moreover, the effect of removing the release agent and the like can be obtained in a short time,
It does not decrease the production efficiency. Claim 3 or 4
According to this, since the resin component forming the air passage is treated at the stage of the component not yet incorporated, the treatment is easy.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example of a structure of an air cleaner to which a manufacturing method of the present invention is applied.

FIG. 2 is a plan view of FIG.

FIG. 3 is a sectional view of a conventional air cleaner.

[Explanation of symbols]

 11 Air Purifier 13 Water Tank 14 Gas-Liquid Contact Section 15 First Cyclone Tube 16 Droplet Separation Section 17 Second Cyclone Tube 18 Communication Tube 24 Injection Nozzle 26 Outlet 29 Inlet 30 Fan 35 Ozone Generator

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hideo Ikegami 1-4-24 Jomi, Chuo-ku, Osaka-shi, Osaka NEC Electronics Home Electronics Co., Ltd.

Claims (4)

[Claims] 1. A method of manufacturing an air purifier for manufacturing an air purifier having a gas-liquid contact portion by a cyclone cylinder made of resin for contacting taken-in air and fine liquid droplets, comprising assembling components. After completing it as an air purifier,
A method for manufacturing an air purifier, which comprises feeding ozone from an air intake port to bring the ozone into contact with at least a surface of a resin-made component forming an air passage of a gas-liquid contact portion. 2. A method for manufacturing an air purifier for manufacturing an air purifier having a gas-liquid contact portion by a cyclone cylinder made of resin for contacting taken-in air and fine liquid droplets, comprising assembling components. After completing it as an air purifier,
A method for manufacturing an air purifier, characterized in that ozone water is used as a liquid to be ejected for driving. 3. A method of manufacturing an air purifier for manufacturing an air purifier having a gas-liquid contact portion by a cyclone cylinder made of resin for contacting taken-in air and fine droplets, the air purifier comprising: Prior to the assembling, the ozone is brought into contact with the surface of the resin-made component forming the air passage extending from the gas-liquid contact portion to the outlet for the clean air. 4. A method of manufacturing an air purifier for manufacturing an air purifier having a gas-liquid contact portion by a cyclone cylinder made of resin for contacting taken-in air with fine liquid droplets, the air purifier. Prior to the assembling, the ozone water is brought into contact with the surface of the resin component forming the air passage extending from the gas-liquid contact portion to the outlet of the clean air.