JPH0370974B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention purifies indoor air with a filter, sterilizes, disinfects, and deodorizes indoor air with ozone, and cleans indoor air with ozone. The purpose is to provide a device that can prevent material deterioration of the material.

[Prior Art] It is well known that ozone O ₃ has sterilizing, disinfecting, and deodorizing effects.

Ozone generation/addition devices for sterilizing, disinfecting, and deodorizing indoor rooms and indoor air by utilizing the properties of ozone are well known and are increasingly being used in hospitals, food warehouses, and the like.

Furthermore, in order to correspond to applications such as aseptic factories and research laboratories that require not only sterilization and disinfection but also air purification, air purification devices are known in which a dust removal filter is incorporated into an ozone generator. (For example, see Japanese Patent Application Laid-open No. 60-25524 and Japanese Utility Model Application No. 62-9439.) According to these conventionally known devices, indoor contaminated air to be sterilized and dusted is guided to an ozone generator and sterilized by ozone. At the same time, the air is filtered and sterilized to be circulated indoors.

[Problems to be Solved by the Invention] In the conventionally known ozone sterilization/deodorization device described above, although the ozone generated can provide a sterilization/deodorization effect, if it is operated for a long time, the decomposition after ozone sterilization tends to be insufficient. , ozone remains indoors, and the strong oxidizing power of this residual ozone not only causes the materials in the room to deteriorate quickly and shortens the life of the equipment itself, but also causes the toxicity of ozone when the amount of residual ozone exceeds a certain amount. There is a problem in that it can harm your health.

In addition, since ozone O ₃ has a larger molecular structure and higher specific gravity than oxygen O ₂ , the ozonated air tends to be insufficiently diffused, and the upper layers of the indoor air, especially the air near the ceiling, do not circulate and tend to stagnate. There is also the problem that the sterilization and disinfection of the ceiling area, which is affected by the sterilizing power of ozone, is insufficient.

This invention attempts to solve the above problems.

[Means for Solving the Problems] The present invention provides means for solving the above problems, and includes an air intake port 1 equipped with a screen-like pre-duster at the lower part and a louver-shaped pre-duster at the upper part. An ozone generator 7 and a humidifier 8 are arranged in parallel in the upper part of the housing A having air outlets 9A and 9B, and an air filter 4 and an ozone decomposer 6 are arranged in series in front of the ozone generator 7 and the humidifier 8. The gist of the invention is that the decomposition device 6 is an ozone sterilization/deodorization device characterized by comprising an ozone decomposition passage 6A and a bypass passage 6B which can be switched so that when one is opened, the other is closed.

[Operation] Since the present invention has the above configuration, the indoor air introduced from the air inlet 1 at the bottom of the housing A is first removed by the screen-shaped pre-duster, and then passed through the bypass section 6B in the ozone decomposition device 6. After being introduced into the air filter 4 and cleaned, the ozonized air is introduced into the ozone generator 7 and the humidifier 8 which are arranged in parallel at the upper part of the housing A, and the ozonated air is passed through the louvered air outlet 9A to humidified air. is blown out from the air outlet 9B and circulated indoors.

Further, when the ozone generator 7 and the humidifier 8 are stopped, circulating air can be passed through the ozone decomposition section 6A in the ozone decomposition device 6 by switching the switching damper 5.

Therefore, the indoor air introduced into the ozone generator 7 and the humidifier 8 is cleaned by the pre-duster installed in the air intake port 1 and further purified by the air filter 4. Since it is air, the generated ozone is not consumed by oxidation of dust, and the entire amount is blown out from the upper air outlet 9A to the upper part of the room along the inclination angle of the louver.
It is effectively used for purposes such as sterilizing, disinfecting, and deodorizing indoor rooms and indoor air. Moreover, since humidified air is simultaneously blown out from the air outlet 9B, the sterilizing effect of ozone can be further enhanced. It is well known that the bactericidal effect of ozone is enhanced by humidification. (Hokkaido Industrial Development Institute Report 1986 No.
40P.69-75 "Sterilization of Bacillus spores by gaseous ozone") In this case, the louver-shaped lower air outlets 9A and 9B are located at the bottom of the housing A, and from the ozone generator 7 and humidifier 8. Since it opens directly into the room without passing through a filter, the flow velocity of the blown air does not decrease, and the air is blown out at the required velocity from the gap provided by the louver toward the ceiling of the room according to the blowing angle. Ru.

Furthermore, if the ozone generator 7 and humidifier 8 are operated for a long time and the ozone concentration in the room becomes rich, after the operation is stopped, the switching damper 5 is switched to transfer the circulating air to the ozone decomposer 6. By passing through the ozone decomposition unit 6A, residual ozone in the room is rapidly decomposed in a short time, preventing the deterioration of indoor substances, and removing the toxicity of ozone to create an environment where humans can enter and exit in a short time. be able to.

Furthermore, if the ozone generator 7 is stopped and operated, the air filter 4 acts as a normal air purifying device, so it can be used as an air purifying device that is harmless to humans and animals.

Therefore, the ozone sterilization/deodorization device can be operated at night or on holidays when no personnel are present, and can be used as a normal air purification device during working hours.

[Example] An example of the present invention shown in the drawings will be described.

Reference numeral 1 denotes an air intake port equipped with a screen-shaped pre-duster provided at the bottom of the housing A. Reference numeral 2 denotes a fan, which is installed in the lower part of the housing A, and is used to blow indoor air sucked in from the air intake port 1 upward. The capacity of this fan 2 can be set to a ventilation frequency of 5 times or more per hour, and a diffusion plate 3 is disposed facing the air outlet of the fan 2. Air discharged from the casing A is diffused throughout the width of the casing A and rises.

Reference numeral 4 denotes a medium-performance air filter, which is installed upstream of the ozone generator 7 and humidifier 8, and filters out 90 to 97% of the dust, especially organic dust, in the circulating air introduced into the devices 7 and 8. colorimetrically).

Reference numeral 5 denotes a switching damper that is slidable left and right, and is disposed before the ozone decomposition device 6. When the ozone generator 7 is in operation, the circulating air is directly raised to the air filter 4 via the bypass section 6B (the third figure),
Furthermore, when the ozone generator 7 is stopped, the route through which the circulating air passes can be selectively switched so that the ozone is raised via the ozone decomposition unit 6A (FIG. 4).

6 is an ozone decomposition device, which is an ozone decomposition section 6A.
and a bypass section 6B. The ozone decomposition part 6A has a honeycomb structure formed of activated carbon fibers, and by passing ozonized air through this honeycomb part, ozone can be reduced and decomposed in a short time and rendered harmless. Ozone can be decomposed simply by passing through the honeycomb part, so there is little pressure loss.

As shown in FIGS. 3 and 4, this ozone decomposition device 6 has an ozone decomposition section 6 in the longitudinal direction of the housing A.
A and bypass sections 6B are arranged alternately in parallel, and by sliding the switching damper 5 left and right, the circulating air flow bypasses the bypass section 6B and rises directly as shown in Fig. 3. Alternatively, as shown in FIG. 4, it can be raised via an ozone decomposition section 6A.

7 is a high-performance ozone generator, which is operated according to the size of the room and the required ozone concentration setting. The control is performed by a timer (not shown) and an ozone concentration sensor.

Reference numeral 8 denotes a humidifier for enhancing the sterilizing effect of generated ozone, and the amount of humidification is controlled to approximately 75 to 85% RH using a humidity sensor.

9A is a louver-shaped ozonized air outlet opening at the top of the housing A, and 9B is a humidified air outlet, and the blowing angle can be arbitrarily set by adjusting the inclination angle of the louver.

In addition, 10 in the figure is a high voltage power supply for ozone generation, 11
are wheels installed at the bottom of the housing A, and are intended to facilitate movement when sterilizing and deodorizing a large number of rooms, such as hospital rooms and hotel guest rooms.

[Effects] According to the present invention, in the upper part of the casing A, which has the air intake port 1 equipped with a screen-like pre-duster at the lower part and the louver-like air outlets 9A and 9B at the upper part,
An ozone generator 7 and a humidifying device 8 are arranged in parallel, an air filter 4 and an ozone decomposition device 6 are arranged in series in the preceding stage, and a switching damper 5 is arranged in series.
The ozone decomposition section 6A in the ozone decomposition device 6 allows the circulating air to selectively pass through the bypass section 6B by the operation of the above, so that the air introduced into the ozone generator 7 and the humidification device 8 can be cleaned and dusted in advance. Since the generated ozone is not consumed in the oxidation of dust, the entire amount can be used for the purpose of sterilizing, disinfecting, and deodorizing indoors and indoor air. The bactericidal effect of ozone can be further enhanced.

Furthermore, after operating the ozone generator 7 and humidifier 8 for a long time, the switching damper 5 is switched to allow the circulating air to pass through the ozone decomposition section 6A in the ozone decomposition device 6, thereby removing residual ozone in the room. It decomposes rapidly, preventing the deterioration of indoor substances, removing the toxicity of ozone, and creating a circulation that allows people to enter and exit in a short period of time.

In addition, since the upper air outlets 9A and 9B open directly into the room from the ozone generator 7 and the humidifier 8 without passing through a filter, the airflow does not decline, and the inclination angle between the airflow from the gap provided by the louver increases. Since the air is blown out at the required flow rate, the upper part of the room and the ceiling can be sufficiently sterilized.

As described above, it has the effect of eliminating the conventional problems, and moreover, if the ozone generator 7 is stopped and operated, the air filter 4 acts as a normal air purifying device, and is used as an air purifying device that is harmless to humans and animals. It also has ancillary effects that can be achieved.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side sectional view, FIG. 2 is a front view, and FIGS. 3 and 4 are explanatory diagrams of the ozone decomposition device portion. A: Housing, 1: Air intake with pre-duster, 2: Fan, 3: Diffusion plate, 4: Air filter, 5: Switching damper, 6: Ozone decomposition device, 6A: Ozone decomposition section, 6B: Bypass section ,
7: Ozone generator, 8: Humidifier, 9A: Ozonated air outlet, 9B: Humidified air outlet, 10:
High voltage power supply for ozone generation, 11: Wheels.

Claims (1)

[Claims] 1. An air intake port 1 equipped with a screen-like pre-duster at the bottom, a louver-like air outlet 9A at the top,
An ozone generator 7 and a humidifier 8 are arranged in parallel in the upper part of the housing A having 9B, and an air filter 4 and an ozone decomposer 6 are arranged in series in front of the ozone generator 7 and a humidifier 8. An ozone sterilization/deodorization device comprising an ozone decomposition passage 6A and a bypass passage 6B which are switchable so that when one is opened, the other is closed. 2. The ozone sterilization/deodorization device according to claim 1, wherein the ozone decomposition passage 6A and the bypass passage 6B are switchable by operating the switching damper 5. 3. The ozone sterilization/deodorization device according to claim 1 or 2, which is movable by being equipped with wheels 11 at the bottom of the housing A. 4. The ozone sterilization/deodorization device according to claims 1 to 3, wherein the inclination angle of the louvers of the air outlets 9A and 9B is adjustable.