JPH0634640U - Deodorizing sterilizer - Google Patents

Abstract

(57) [Summary] [Purpose] To make it possible to easily regenerate an ozone decomposition catalyst. [Structure] The ozone decomposition catalyst 4 is connected to an electric heating means (composed of electrodes 7, 9 and a switch 9 and a power source 10), and the electric power is used to heat and regenerate the ozone decomposition catalyst 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a deodorizing and sterilizing device.

[0002]

[Prior art]

 Conventionally, in this type of device, it is known that the adsorbent is heated by an electric heater to activate the adsorbent (see, for example, JP-A-63-214262).

[0003] In this prior art, deodorization is performed using an odor adsorbent and a catalyst, which is usually deodorized by the adsorbent, and when the adsorbent is saturated, the adsorbent is heated and regenerated by an electric heater. there were. Further, at this time, the odorous component released from the adsorbent was treated with a catalyst.

[0004]

[Problems to be solved by the device]

 However, in the above-mentioned prior art, although the adsorbent is heated by an electric heater for regeneration, the temperature for heating the adsorbent needs to be set relatively high, and therefore high energy is required. I had a problem.

Further, since the adsorbent, the catalyst and the electric heater are used, there are problems that the device is complicated and the cost is high.

In order to deal with this problem, for example, it is conceivable to configure deodorization sterilization by using only an ozone generator and an ozone decomposition catalyst without using an adsorbent.

However, the deodorizing sterilization composed of an ozone decomposition catalyst and an ozone generator has a problem that the ozone catalyst deteriorates due to an ozone concentration (for example, 1 ppm) higher than a predetermined level, and the performance deteriorates.

Therefore, in view of the above problems, an object of the present invention is to provide a deodorizing sterilization device which makes it possible to easily regenerate an ozone decomposition catalyst.

[0009]

[Means for Solving the Problems]

 In order to achieve the above object, a deodorization sterilization apparatus according to the present invention is an apparatus for deodorization and sterilization having an ozone generator in an air passage and an ozone decomposition catalyst provided downstream thereof. An energizing and heating means for energizing and overheating is provided.

[0010]

[Action]

 Therefore, by energizing and heating the ozone decomposing catalyst with the energizing heating means, the ozone decomposing catalyst is easily regenerated by heating, whereby the above problems can be solved.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, a deodorization sterilizer 1 is basically configured by housing an ozone generator 3, an ozone decomposing catalyst 4, and a fan 5 in a case 2, and these are, for example, a home. It is designed to be installed in a duct air-conditioning system.

The ozone generator 3 has a known structure for generating ozone for deodorizing and sterilizing the intake air, and is therefore disposed on the most upstream side of the case 2.

The ozone decomposing catalyst 4 is for adsorbing and decomposing ozone generated by the ozone generator 3, and is made of, for example, a manganese-based self-heating type catalyst, and is formed in a mesh shape.

As shown in FIG. 2, the ozone decomposition catalyst 4 has elastic conductors 6 such as carbon sheets disposed at the upper and lower ends thereof, and electrodes 7 and 8 serving as electric heating means are fixed thereto. When the switch 9 is closed, a voltage is applied from the power source 10 to heat by energization. When the electrodes 7 and 8 are attached in this manner, the contact resistance of the electrodes 7 and 8 is reduced.

The fan 5 is for blowing the air sucked from the upstream side to the downstream side.

In the above configuration, when the fan 5 is operated, air is drawn into the case 2 from the upstream side. When the ozone generator 3 is operated at this point, the odor components contained in the air are decomposed by the ozone generated from the ozone generator 3, and the air from which the odor has been removed and sterilized is passed through the ozone decomposition catalyst 4 to the downstream side. Blown.

The ozone decomposing catalyst 4 adsorbs ozone from the ionized air and decomposes the ozone. Specifically, the chemical reactions represented by the following chemical formula 1 (oxidation) and chemical formula 2 (reduction) are performed.

[0019]

[Chemical formula 1] M + O ₃ → MO + O ₂

[0020]

[Chemical formula ₂ ] MO + O ₃ → M + 2O ₂

Incidentally, M is a metal.

However, when the above chemical reaction is repeated many times, oxygen is accumulated in the ozone catalyst 4, the redox reaction is suppressed, and the ozone decomposition catalyst 4 deteriorates.

In order to suppress this deterioration or to perform regeneration, the switch 9 is turned on, the ozone decomposition catalyst 4 is energized, and the ozone decomposition catalyst 4 is heated at a predetermined temperature or higher.

By heating the ozone decomposition catalyst 4 with electricity, the molecular motion of oxygen, which has suppressed the reduction reaction, is activated, oxygen is released from the ozone decomposition catalyst 4, and the ozone decomposition catalyst 4 is regenerated. , Will be activated.

The heating regeneration temperature of the ozone decomposition catalyst 4 may be a relatively low temperature of about 40 to 80 ° C., and when heating is continuously performed for a long time (for example, about 8 hours), the temperature of the ozone decomposition catalyst 4 is reduced. If kept at 40 degrees or more, the initial performance can be maintained for a long time.

As described above, examples of long-time operation include, for example, the heating operation of the air conditioner, or the case of air conditioning a relatively large space.

In order to save energy, it may be considered that the ozone decomposition catalyst 4 is intermittently heated by energization.

In the case of intermittently heating by energizing as described above, it is possible to suppress a large deterioration of the catalyst, and it is possible to return to the initial performance immediately after the regeneration so that the calorific value and power consumption due to heating can be minimized. Becomes

[0029]

[Effect of device]

 As described above, according to the present invention, the ozone decomposing catalyst is heated by energization, so that the ozone decomposing catalyst can be easily regenerated by this heating and, for example, high concentration ozone can be generated. Since it is possible to maintain stable performance for a long time, it is possible to obtain a high deodorizing and sterilizing effect.

Further, since maintenance of the ozone decomposition catalyst is unnecessary, there is an advantage that the operating cost can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a deodorizing sterilizer.

FIG. 2 is a diagram showing an example in which an electric heating means is attached to an ozone decomposition catalyst.

[Explanation of reference numerals] 1 deodorization sterilizer 2 case 3 ozone generator 4 ozone decomposition catalyst 5 fan 6 elastic conductor 7, 8 electrode 9 switch 10 power supply

Claims (1)

[Scope of utility model registration request] 1. A deodorizing and sterilizing device having an ozone generator and an ozone decomposing catalyst provided downstream of the ozone generator in an air passage, wherein an energizing and heating means for energizing and heating the ozone decomposing catalyst is provided. A deodorizing sterilizer.