JP2000084057A - Deodorizing net and air conditioner equipped with same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deodorizing net having a high deodorizing rate, ensuring the effectiveness of deodorizing even in an air flowing environment and freedom from the re-discharge of a removed odor molecule, requiring low cost and allowing an application to an air conditioner or the like. SOLUTION: A deodorizing net 5 made of porous nylon fabric dyed with a transmission metal chelate catalyst (phthalocyanine) and secured to a frame, and an antibacterial deodorizing honeycomb filter 3 combining apatite and activated coal are, for example, arranged in air conditioner interior machine. As a result, a deodorizing effect can be regenerated by washing the odor adsorbed deodorizing net 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing net for deodorizing indoor odors and an air conditioner provided with the net, such as an air conditioner indoor unit and an air purifier.

[0002]

2. Description of the Related Art Demands for dust collection and deodorization in general households are increasing year by year. In a house with high airtightness, the smell is particularly likely to be muffled, and there is an increasing demand for removing the smell of cigarettes, sweat, and infants. To cope with this, deodorizing and deodorizing functions have been introduced mainly for air conditioners and air purifiers. The deodorizing method is activated carbon adsorption,
Redox catalytic oxidation, photocatalytic oxidation, and ozone oxidation are employed. The catalytic action is mainly redox catalytic action, and metal oxides, noble metals, and organometal chelate compounds are used. The adsorption action removes odor molecules from the room by adsorbing odor molecules, and an extremely large number of odor adsorbents that form complexes with odor molecules have been developed.

[0003]

The odor of tobacco includes acetaldehyde, ammonia, lower amines, hydrocarbons,
Contains hydrogen sulfide and the like. Activated carbon, which is commonly used, is a material having extremely excellent adsorptivity as a nonpolar adsorbent, and has high adsorptivity to almost all gases. However, exceptionally, it has low adsorptivity to sulfur compounds and aldehydes. On the other hand, tobacco odor
It contains acetaldehyde, ammonia, lower amines, hydrocarbons, hydrogen sulfide, and the like, and particularly has a high ratio of acetaldehyde, which is a weak point of activated carbon. Therefore, it is difficult to remove these odors only with ordinary activated carbon. Therefore, removal of hydrogen sulfide, ammonia, and acetaldehyde, which cannot be sufficiently removed by activated carbon, has become a major issue. In addition, in order to reduce the sound of the air circulation fan and to prevent a load from being applied to the air fan, a deodorizing filter having extremely low pressure loss is required.

[0004]

The present invention uses a combination of a transition metal chelate compound which decomposes an odor component by a catalytic action (the oxidation catalyst method using this transition metal chelate compound solves these problems). It has been studied as a means of solving the problem, and is described in, for example, Naoki Toshima, `` Industrial Materials '', October issue, p. 45 (1991), and E. Shirai, `` Industrial Materials '' October issue, p. 58 (1991) ing).

[0005] The first aspect of the present invention is a deodorizing net obtained by dyeing a chemical fiber with a transition metal chelate catalyst, wherein the deodorizing function is regenerated by removing the odor gas adsorbed after deodorization by washing with water. It is a deodorant net characterized by:

According to a second aspect of the present invention, in the deodorizing net according to the first aspect, the chemical fiber is a porous nylon fiber, and is subjected to a heat treatment after dyeing a transition metal chelate catalyst. The deodorizing net is characterized in that the net is firmly adhered to the inside of the fiber and does not decolor by washing with water.

According to a third aspect of the present invention, there is provided the deodorizing net according to the second aspect, wherein the temperature of the heat treatment is in a range of 80 ° C. to 150 ° C.

According to a fourth aspect of the present invention, there is provided the deodorizing net according to the second or third aspect, wherein the transition metal chelate catalyst is a metal phthalocyanine compound.

A fifth aspect of the present invention is an air conditioner provided with the deodorizing net according to the first aspect and a composite honeycomb filter made of apatite and activated carbon having an antibacterial effect and an adsorbing effect.

According to a sixth aspect of the present invention, there is provided an air conditioner wherein the air conditioner according to the fifth aspect is, for example, an air conditioner indoor unit or an air purifier.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION According to the present invention, a filter installed between an air intake and a heat exchanger is formed by heating a nylon net having a deodorizing function by a chemical adsorption or a catalytic action on an outer frame made of injection molding such as polypropylene. It has a structure in which a deodorizing net manufactured by fixing by crimping or ultrasonic bonding, and an apatite honeycomb filter having an antibacterial effect are attached to pockets provided in an outer frame. An apatite honeycomb filter having an antibacterial effect is composed of a nonwoven sheet containing apatite and a nonwoven sheet containing activated carbon. A corrugated plate and a partition plate obtained by corrugating these sheets are alternately overlapped, and the overlapped portion is bonded with an adhesive to produce a laminate. The apatite attached to the sheet has an effect of inactivating (suppressing the activity) of the virus and suppressing the reproductive power. To make the activated carbon contained in the sheet, the activated carbon fine particles are squeezed into the sheet, or the fine particles are applied to the surface in the form of ink. Among the transition metal chelate compounds, iron phthalocyanine octacarboxylate is effective. Iron octacarboxylate phthalocyanine decomposes hydrogen sulfide and mercaptan in the presence of oxygen and water. Therefore, activated carbon is vulnerable to moisture, and the deodorizing effect decreases when the humidity increases, whereas iron phthalocyanine octacarboxylate exhibits an excellent deodorizing effect in an environment having moisture, that is, in a high humidity place. Further, since a nitrogen-based gas such as ammonia is chemically adsorbed to the carbonyl group of the iron phthalocyanine derivative, the nitrogen-based gas can be effectively removed.

When a deodorizing net is used for a long period of time, the deodorizing performance against nitrogen-based gas such as ammonia decreases due to the deodorizing effect due to the adsorption action. However, it is necessary to wash the deodorizing net with water. As a result, the chemically adsorbed nitrogen-based gas can be desorbed, and the deodorizing performance can be regenerated. Further, by repeatedly washing with water, the deodorizing effect of the net can be maintained for a long period of time.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited thereto. Octacarbonyl iron phthalocyanine, which is a deodorizing catalyst, was added to an aqueous alkali solution in which potassium hydroxide was dissolved to dissolve it. The solution was maintained at a temperature of 60 ° C., and a porous nylon net was immersed in the solution to sufficiently swell, and then dried while blowing at 100 ° C. for 10 minutes in a wet state. In this example, the drying temperature was 100 ° C., but if the drying temperature is in the range of 80 ° C. to 150 ° C., octacarbonyliron phthalocyanine is firmly fixed inside the fiber. After being blown dry, the net was immersed in a dilute hydrochloric acid solution to neutralize it. After sufficiently washing with water, drying was performed again to produce a nylon net dyed with iron phthalocyanine. This nylon net was fixed to a polypropylene frame by a thermocompression bonding method to obtain a deodorant net.

A corrugated sheet was prepared by corrugating a polyester nonwoven fabric containing activated carbon with a cardboard processing machine. The corrugated sheet and the flat sheet made of the unprocessed apatite-containing nonwoven fabric were alternately stacked and bonded to form a cardboard structure. The outer frame was reinforced using a thick polyester nonwoven fabric. A polyamide adhesive was used for bonding the sheets. This structure was sliced into a thickness of 5 mm to produce a honeycomb filter. At this time, the opening area of one cell was 0.3 cm ² . Two deodorizing nets and an apatite activated carbon composite honeycomb filter (size: 15
An air conditioner indoor unit equipped with two (cm × 6 cm) sheets was set in a 1 m ³ acrylic box. The inside of the evaluation box was set to a temperature of 25 ° C. and a humidity of 60%, and adjusted to a general house atmosphere. Five tobacco (mild seven) cigarettes were mechanically smoked in the box, and the interior was circulated and deodorized by the indoor unit at a landscape of 3 m ³ / min.

The gas concentrations before and after that were measured with a gas detector tube for ammonia, acetaldehyde and acetic acid, and the total removal rate was calculated. At this time, the total removal rate after 30 minutes was 68%. On the other hand, when only the conventional polypropylene dustproof net was mounted, the ratio was 23%.

FIG. 1 shows an air conditioner equipped with a deodorizing net of the present invention and a composite honeycomb filter made of apatite and activated carbon having an antibacterial effect and an adsorption effect. In the figure, 1 is a sending fan, 2 is a fin, 3 is an antibacterial deodorizing honeycomb filter,
4 is an air inlet, 5 is a deodorizing net, and 6 is a heat exchanger. The air taken in from the air inlet 4 by the sending fan 1 is deodorized and sterilized by the deodorizing net 5 and the antibacterial deodorizing honeycomb filter 3, heat exchanged by the heat exchanger 6, and exhausted from the air conditioner. It has become so. As a result, it is possible to enhance the removal and inactivation of influenza and various bacteria, as well as deodorization.

[0017]

According to the present invention, by disposing a deodorizing net having a phthalocyanine dyed nylon net fixed to a frame and an apatite activated carbon composite honeycomb filter, dust and odor can be removed from the air. The air in the room is purified, creating a more comfortable and healthy living space. Further, by washing the deodorant net to which the odor gas is adsorbed, the deodorizing effect can be regenerated, and by repeatedly washing with water, the deodorizing effect can be maintained for a long time. In addition, the antibacterial action of apatite enhances adsorption and removal and inactivation of influenza and various bacteria, thereby realizing a healthy environment.

[Brief description of the drawings]

FIG. 1 shows an embodiment of an air conditioner provided with a deodorant net of the present invention.

[Explanation of symbols]

1 ... sending fan, 2 ... fin, 3 ... antibacterial deodorizing honeycomb filter, 4 ... air inlet, 5 ... deodorant net, 6 ... heat exchanger.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toru Watsuji 22-22, Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Inside (72) Inventor Hideo Nojima 22-22, Nagaike-cho, Abeno-ku, Osaka-shi, Osaka F-term (for reference) 3L053 BD03 4C080 AA05 BB02 BB05 CC02 CC04 CC08 CC12 HH05 JJ05 KK08 LL10 MM05 NN28 QQ01 QQ03 QQ11 QQ17

Claims (6)

[Claims] 1. A deodorant net obtained by dyeing a chemical fiber with a transition metal chelate catalyst, wherein an odor gas adsorbed after deodorization is desorbed by washing with water so that the deodorant function can be regenerated. Deodorant net. 2. The deodorizing net according to claim 1, wherein the chemical fiber is a porous nylon fiber, and after the transition metal chelate catalyst is dyed, heat treatment is applied to solidify the inside of the fiber. A deodorizing net characterized by being attached to a surface and not decoloring by washing with water. 3. The deodorizing net according to claim 2, wherein the temperature of the heat treatment is in a range of 80 ° C. to 150 ° C. 4. The deodorant net according to claim 2, wherein the transition metal chelate catalyst is a metal phthalocyanine compound. 5. The deodorant net according to claim 1,
An air conditioner equipped with a composite honeycomb filter made of apatite and activated carbon that has an antibacterial effect and an adsorption effect. 6. An air conditioner according to claim 5, wherein the air conditioner is, for example, an air conditioner indoor unit or an air purifier.