JPH062736Y2 - Air purifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an air purification device.

[Background of the invention]

Generally, the atmosphere contains dust, cigarette smoke, odorous substances such as odorous gas, and the like.Therefore, from the viewpoint of environmental hygiene, or to purify the air as appropriate to achieve a comfortable environment. Therefore, there is a demand for removing unpleasant odors, and under such circumstances, it is strongly desired to provide an air purifying device having a sufficient deodorizing action.

[Problems to be solved by the device]

Conventionally, air purifiers have been developed, but the conventional air purifiers have insufficient deodorizing action and are effective against a specific odor, but are hardly effective against other types of odors. There is no deodorizing action, and therefore, there is a problem that the unpleasant odor of air cannot be sufficiently removed.

[Object of the Invention] An object of the present invention is to solve the above problems and to provide an air purification device capable of deodorizing various odors and reliably removing unpleasant odors. To do.

[Means for Solving the Problems]

The air purification apparatus of the present invention includes a casing having an air inlet and an air outlet, and a ventilation fan that takes in external air from the air inlet into the casing and passes the air toward the air outlet. A honeycomb body having a large number of air holes arranged in the casing and extending in the direction of air flow, the inner surface of the air holes carrying an air purification reaction catalyst substance that is excited by irradiation of ultraviolet rays, and the honeycomb body. Wavelength provided to illuminate the inner surface of the body's ventilation holes
It is characterized by comprising an ultraviolet radiation lamp that emits ultraviolet rays containing 1849 Å rays, and an ozone removing honeycomb body arranged in a flow passage of the air discharged from the air outlet.

[Effect of the device]

According to the present invention, the outside air introduced by the ventilation fan flows through the honeycomb body when passing through the inside of the casing. By irradiating, the air purification reaction catalyst substance is excited to remove a specific odor of the air flowing through, and the ultraviolet radiation lamp emits ultraviolet rays with a wavelength of 1849 Å to generate ozone in the air. However, due to the ozone, the odor that is difficult to be deodorized by the air purification reaction catalytic substance is deodorized, while excessive ozone is not released to the outside because it is removed by the ozone removing honeycomb body, As a result, the unpleasant odor can be sufficiently removed and an air purifying effect with an excellent deodorizing effect can be obtained.

[Specific configuration of device]

Hereinafter, a specific configuration of the present invention will be described with reference to the drawings.

FIG. 1 is a vertical sectional side view for explanation showing an outline of an example of an air purifying apparatus according to the present invention, and FIG. 2 is a transverse plan view for explanation similarly. The air purifying apparatus according to this embodiment is of a type that is used by being placed on, for example, a table in a room or other horizontal plane, and has a flat box-shaped casing 1 as a whole. An air inlet 2 is formed by, for example, a louver on the upper surface on one end side of the casing 1, and an air outlet 3 is also formed by a louver on the upper surface on the other end side. The ventilation fan 5 composed of a cross flow fan is arranged so as to be located at. Reference numeral 4 is an air flow passage forming member that forms an air flow passage in the casing 1. Due to its suction force, the ventilation fan 5 introduces external air from the air inlet 2 into the casing 1, circulates the air passage, and then discharges it from the air outlet 3. Then, in the air flow passage, the first honeycomb body 6, the ultraviolet radiation lamp L and the second honeycomb body 7 are arranged in this order so as to be arranged along the air flow direction, and further the second honeycomb body is arranged. After 7, the ozone removing honeycomb body 8 is arranged.

As shown in FIG. 3, each of the first honeycomb body 6 and the second honeycomb body 7 is integrally fixed in a state where the corrugated plates A and the flat plates B are alternately stacked. And plate B
It is made of, for example, ceramic having a configuration in which a large number of cylindrical vent holes C are formed between the vent holes C and, and the vent holes C are arranged so as to extend along the air flow direction. Then, the air purification reaction catalyst substance is fixed or carried on the inner surface of each vent hole C in the first honeycomb body 6 and the second honeycomb body 7.

As an air purification reaction catalyst substance, it is excited by the irradiation of ultraviolet rays and reacts when it catalyzes with a specific odor substance that causes an unpleasant odor in the air to chemically change the odor substance. A substance that exhibits a deodorizing effect is used. As specific examples of such an air purification reaction catalyst substance, titanium oxide, zinc oxide, a mixture thereof, and the like can be preferably used, and as the titanium oxide, anatase type is preferable because of its high activity. Further, a mixture of titanium oxide and an oxide or hydroxide of an alkali metal or an alkaline earth metal, or a complex metal oxide such as potassium tetratitanate or potassium hexatitanate is also preferably used. . According to these air purification reaction catalyst substances,
Especially, the odor caused by the sulfur compound is removed with high efficiency.
The means for fixing or supporting the air purification catalyst substance on the honeycomb body is not particularly limited.

The ultraviolet radiation lamp L has a rod-like shape and has a wavelength of 1849Å
The light-emitting gas that radiates ultraviolet rays having a wavelength of 4000 Å or less including a light ray having a wavelength of 1849 Å is enclosed in a glass envelope that highly efficiently transmits ultraviolet rays including a light ray of. Specifically, as the ultraviolet radiation lamp L, a low pressure mercury lamp can be preferably used.

The ultraviolet radiation lamp L is attached to the socket 9 fixed to the casing 1 so that the inner surface of each of the ventilation holes C is irradiated with ultraviolet rays through the outlet side opening of the ventilation hole C in the first honeycomb body 6. In addition, the inner surface of each vent hole C is irradiated with ultraviolet light through the inlet side opening of the vent hole C in the second honeycomb body 7. Mountain-shaped reflectors 10 and 10 are provided above and below the ultraviolet radiation lamp L so as to project inward.

The ozone removing honeycomb body 8 has a property of adsorbing or decomposing ozone on the inner surface of each vent hole in the honeycomb body having the same structure as the first honeycomb body 6 described above.
For example, a substance for removing ozone such as activated carbon, manganese oxide, or copper oxide is fixed or supported alone or in the form of a complex. This ozone-removing substance has an ozone-removing action without being particularly irradiated with ultraviolet rays. The means for fixing or supporting the ozone removing substance on the honeycomb body is of course not limited.

According to the above configuration, the ventilation fan 5 is driven to introduce the outside air at the place where the air purifying device is arranged from the air inlet 2 into the casing 1, and then this air is supplied to the casing. It is sent to the other end side through the air flow passage in 1, but at this time, it passes through the vent holes C of the first honeycomb body 6, and then receives the ultraviolet rays from the ultraviolet radiation lamp L, and then the second After passing through the vent holes C of the honeycomb body 7, it is discharged to the outside from the air outlet 3 through the ozone removing honeycomb body 8. When passing through the air holes C of the first honeycomb body 6 and the second honeycomb body 7, the air purification reaction catalyst substance is carried on the inner surfaces of the air holes C and the ultraviolet radiation lamp L Because the ultraviolet rays from the
The excited sulfur-catalyst substance is brought into contact with the air purification reaction catalytic substance without fail, and a sulfur compound or the like that gives off an odor is chemically denatured and deodorized. In addition, the ultraviolet radiation lamp L
Since the ultraviolet ray emitted from the ultraviolet ray contains a ray having a wavelength of 1849Å, ozone is generated in the air when the air passes through the ultraviolet ray emitting lamp L. Ozone has an excellent deodorizing action due to its oxidative property, and therefore, the synergistic effect of the deodorizing action by the air purification reaction catalyst substance and the deodorizing action by ozone can remove the odor with extremely high efficiency. .

The reflectors 10 and 10 emit the ultraviolet rays from the ultraviolet radiation lamp L,
Since the light is projected onto the first honeycomb body 6 and the second honeycomb body 7 from a position and a direction different from that of the ultraviolet radiation lamp L, the area of the ultraviolet irradiation surface on the inner surface of the vent hole C should be further widened. It is effective in improving the deodorizing efficiency.

As described above, the outside air is taken in, and the deodorizing action of the honeycomb body having the air purification reaction catalyst substance and the deodorizing action of the ozone generated by the ultraviolet rays of the wavelength 1849Å emitted from the ultraviolet radiation lamp are applied to the air. Since both of the above are exhibited, various odors are sufficiently deodorized, so that the air is sufficiently deodorized and cleaned, and then discharged from the air outlet 3. By continuously performing such an air purifying action, the indoor environment can be maintained in an extremely comfortable state.

Further, since the ozone removing honeycomb body 8 is disposed on the downstream side of the second honeycomb body 7, the intensity of the ultraviolet ray of the wavelength 1849Å emitted from the ultraviolet ray emitting lamp L is large and excessive ozone is generated. Also in this case, since the excess ozone is adsorbed or decomposed by the ozone removing honeycomb body 8 and removed, the ozone is prevented from being discharged to the outside from the air outlet 3, and as a result, the ozone is sufficiently high. Odor from excessive ozone is not emitted while obtaining a deodorizing effect. This ozone removing honeycomb body 8
Need only be arranged in the air flow passage downstream of the ultraviolet radiation lamp L and through which the air is discharged from the air flow outlet 3 as it is without further treatment, so the specific position thereof is appropriately selected. It may be provided, for example, adjacent to the air outlet 3.

The present invention is not limited to the above embodiments and can be implemented in various modes.

As described above, according to the present invention, since the ultraviolet radiation lamp for exciting the air purification reaction catalyst substance carried on the honeycomb body emits ultraviolet rays containing a light beam having a wavelength of 1849Å,
In addition to the deodorizing action of the air purifying reaction catalytic substance, the deodorizing action of ozone can be obtained, and the excess ozone is prevented from being released to the outside. As a result, the unpleasant odor of the atmosphere can be reliably and sufficiently Can be removed to achieve suitable air purification.

[Brief description of drawings]

1 and 2 are respectively an explanatory vertical side view and an explanatory transverse plan view showing an embodiment of an air purifying apparatus according to the present invention, and FIG. 3 is an explanatory view of a honeycomb body. DESCRIPTION OF SYMBOLS 1 ... Casing, 2 ... Air inflow port 3 ... Air outflow port 4 ... Air flow path forming member 5 ... Ventilation fan, 6 ... 1st honeycomb body L ... Ultraviolet radiation lamp, 7 ... 2nd honeycomb body 8 ... Ozone removal Honeycomb body 9 ... Socket, 10 ... Reflector A ... Corrugated plate, B ... Flat plate C ... Vent hole

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shoji Kurosawa 3-15-5 Shimizuguchi, Shirai-machi, Inba-gun, Chiba (72) Inventor Totsuji Watanabe 1-22 Gotenyama-cho, Hirakata-shi, Osaka

Claims (1)

[Scope of utility model registration request] 1. A casing having an air inlet and an air outlet, a ventilation fan for introducing outside air into the casing from the air inlet, and passing the air toward the air outlet, and a casing inside the casing. A honeycomb body having a large number of vent holes extending in the direction of air flow, the inner surface of the vent holes carrying an air purification reaction catalyst substance that is excited by irradiation with ultraviolet rays, and a honeycomb body communicating with the honeycomb body. It has an ultraviolet ray emitting lamp provided to irradiate the inner surface of the pores, which emits ultraviolet rays containing a ray of wavelength 1849Å, and an ozone removing honeycomb body arranged in the flow passage of the air discharged from the air outlet. An air purification device characterized in that