JP2000300657A - Ozone deodorizing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safe ozone deodorizing device which is not degraded in performance by the use of a catalyst in a deteriorated state and is safe to the human body. SOLUTION: This ozone deodorizing device comprises a casing 1 which has an air passage 11, an ozone generator 2 which is disposed within the air passage 11 of the casing 1, a fan 3 which sucks the air in a room into the air passage 11, the catalyst 4 which is disposed downstream of the ozone generator 2 in the air passage 11, adsorbs odorous components and cracks the ozone an ozone sensor 6 detecting the ozone density in the room, and a control means 5 which lights a catalyst exchange pilot lamp 7 and stops the ozone generator 2 in the case of the ozone density in the room exceeding a reference value, then stops the fan and prohibits the restart of the ozone generator 2 and the fan 3 unless the operation is reset by a reset switch when the ozone density falls below the reference value.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ozone deodorizing apparatus installed in a room such as a warehouse, a container, and a car box.

[0002]

2. Description of the Related Art Deodorization and sterilization by ozone are well known. As an ozone deodorizing device utilizing this, a device shown in FIG. 3 is generally used.

[0003] The illustrated ozone deodorizing apparatus is installed in a room such as a warehouse, a container, a car box, etc., and is provided with a casing 10 having an air passage 101 and an air passage 101 of the casing 10. An ozone generator 20, a fan 30 for sucking indoor air into the air passage 101,
A catalyst 40 which is disposed downstream of the ozone generator 20 in the air passage 101 and adsorbs odor components and decomposes ozone; The ozone generated by the generator 20 and the catalyst 40 are deodorized by the catalyst 40 and released into the room. That is, the odor components in the air sucked by the fan 30 are adsorbed by the catalyst 40, where they react with the ozone to be deodorized, and the ozone itself is decomposed.

[0004]

However, in the above-mentioned conventional ozone deodorizing device, when the catalyst is deteriorated, the ozone decomposing ability is reduced and high-concentration ozone is released into the room. Be harmful.

[0005] An object of the present invention is to provide an ozone deodorizing apparatus which is free from deterioration in performance due to use of a degraded catalyst and is safe for a human body.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an ozone deodorizing apparatus installed in a room such as a warehouse, a container, a car cargo box, etc., wherein a casing having an air passage and a casing of the casing are provided. An ozone generator provided in the air passage, a fan for sucking indoor air into the air passage, and a fan disposed in the air passage downstream of the ozone generator to adsorb odor components and decompose ozone A catalyst, an ozone sensor that detects the indoor ozone concentration, and when the indoor ozone concentration exceeds a reference value, turns on the catalyst replacement indicator lamp and stops the ozone generator,
Thereafter, when the ozone concentration becomes equal to or less than the reference value, the fan is stopped, and the ozone generator and the fan are controlled so that the fan cannot be restarted unless reset by a reset switch.

[0007]

[Function] During operation of the deodorizing device, indoor air containing odor components is sucked into the air passage of the casing by a fan,
Ozone generated by the ozone generator and a catalyst disposed downstream of the ozone generator are deodorized and released indoors. At this time, if the catalyst has not deteriorated, the ozone concentration in the room hardly rises because ozone is decomposed by the catalyst, but if the catalyst has deteriorated, the ozone decomposition ability decreases and the ozone concentration in the room gradually decreases. To rise. The ozone sensor constantly outputs the indoor ozone concentration signal to the control means.
When the ozone concentration exceeds the reference value based on the signal from the ozone sensor, the control unit turns on the catalyst replacement indicator lamp, stops the ozone generator, and then, when the ozone concentration falls below the reference value, The ozone generator and the fan are controlled so that they cannot be restarted unless the fan is stopped and reset by a reset switch.

[0008]

FIG. 1 is a block diagram of an ozone deodorizing apparatus according to the present invention. In the air passage 11 of the casing 1, an ozone generator 2 is provided in the middle, a fan 3 for sucking room air into the air passage 11 upstream thereof, and a catalyst 4 for adsorbing odor components and decomposing ozone downstream. Are arranged respectively. The ozone generator 2 and the fan 3
Is controlled by the control unit 5 as a control means. The control unit 5 is connected to a catalyst replacement indicator lamp 7, a deodorizing device operation switch 8, and a catalyst replacement reset switch 9, in addition to the ozone sensor 6 for detecting the ozone concentration in the room.

Next, the operation of the ozone deodorizing device having the above configuration will be described with reference to the time chart of FIG. To operate the ozone deodorizing device, the deodorizing device operation switch 8 is pressed (FIG. 2A). Then, the ozone generator 2 and the fan 3 are operated via the control unit 5 (FIG. 2C).
(D)), the indoor air containing the odor component is sucked into the air passage 11 of the casing 1 by the fan 3, and the ozone generated by the ozone generator 2 and the catalyst 4 disposed downstream of the ozone generator 2 And it is released indoors. At this time, if the catalyst 4 has not deteriorated, the ozone concentration in the room hardly increases, but if the catalyst 4 has deteriorated, the ozone concentration in the room gradually increases (FIG. 2 (e)). When the indoor ozone concentration exceeds the reference value, the control unit 5
Turns on the catalyst replacement display lamp 7 (FIG. 2 (f)) and stops the ozone generator 2 (FIG. 2 (d)). In this state, the fan 3 is still operating, and the ozone in the room is decomposed by the remaining power of the catalyst 4. Thereafter, when the indoor ozone concentration falls below the reference value, the control unit 5 stops the fan 3 (FIG. 2C). When the catalyst replacement indicator lamp 7 is lit, the control unit 5
The signal from the deodorizer operation switch 8 is not received (see FIG. 2).
(a)), the deodorizing device cannot be restarted. To restart,
After replacing the catalyst 4 with a non-degraded one, the catalyst replacement reset switch 9 is pressed (FIG. 2 (b)). As a result, the catalyst replacement indicator lamp 7 is turned off via the control unit 5 (FIG. 2 (f)), and the deodorizer can be restarted.

[0010]

According to the ozone deodorizing apparatus of the present invention, there is no decrease in performance due to use of the catalyst while it is deteriorated.
In addition, since the ozone concentration in the room can be maintained at a low level, there is no effect on the human body and it is safe.

[Brief description of the drawings]

FIG. 1 is a block diagram of an ozone deodorizing apparatus showing an embodiment of the present invention.

FIG. 2 is a time chart showing the operation of the ozone deodorizing device shown in FIG.

FIG. 3 is a block diagram of a conventional ozone deodorizing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 2 Ozone generator 3 Fan 4 Catalyst 5 Control unit (control means) 6 Ozone sensor 7 Catalyst exchange indicator lamp 9 Catalyst exchange reset switch

Continuation of the front page F term (reference) 4C080 AA07 BB02 CC01 HH02 JJ01 KK02 LL02 MM08 QQ11 4D048 AA12 AA22 AB03 AC07 CC40 CC61 DA01 DA02 DA09 DA10 EA04

Claims (1)

[Claims] 1. An ozone deodorizing device installed in a room such as a warehouse, a container, a car box, etc., a casing having an air passage, an ozone generator arranged in the air passage of the casing, A fan that sucks air into the air passage, a catalyst that is disposed downstream of the ozone generator in the air passage, adsorbs odor components and decomposes ozone, and an ozone sensor that detects indoor ozone concentration, When the indoor ozone concentration exceeds the reference value, the catalyst replacement indicator lamp is turned on, and the ozone generator is stopped,
Thereafter, when the ozone concentration falls below the reference value, the fan is stopped, and the ozone generator and the control means for controlling the fan so as not to be restarted unless reset by a reset switch are constituted. apparatus.