JPH0557120A - Ozone deodorizer - Google Patents

Abstract

PURPOSE:To extend the life of an electrostatic filter so as to allow the same to coincide with the life of an ozone decomposing filter by automatically taking up the electrostatic filter corresponding to a deodorizing operation time and detecting the passage of the taking-up quantity discriminating body of the electrostatic filter by a taking-up quantity detection means to turn a drive motor OFF. CONSTITUTION:The open air is introduced into a deodorizer main body 1 from a suction part 11 by driving a blower 5 and mixed with ozone to decompose and remove a malodorous component. At this time, when a predetermined deodorizing operation time is clocked by a timer 23, a control circuit turns a drive motor 20 ON on the basis of the output signal of the timer 23 to take up an electrostatic filter 8. The passage of the taking-up quantity discriminating body 24 of the electrostatic filter 8 is detected by a taking-up quantity detection means 25 to turn the drive motor 20 OFF. Therefore, the life of the electrostatic filter can be extended and the electrostatic filter is always taken up in fixed taking-up quantity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ozone deodorizing device.

[0002]

2. Description of the Related Art Examples of malodorous components in air include ammonia, acetaldehyde, hydrogen sulfide and the like. These malodorous components are discharged from human waste treatment plants, sewage treatment plants, various chemical treatment plants and the like. An ozone deodorizing device is generally known as a deodorizing device that deodorizes these malodorous components in the air.

Ozone is the second strongest oxidant in nature after fluorine. For this reason, in the ozone deodorizing device, if ozone remaining in the air after deodorization is released into the atmosphere, it may have a bad influence on the human body such as a respiratory disorder. Therefore, the ozone deodorizing device is generally equipped with an ozone decomposing filter. FIG. 9 is a perspective view showing the overall configuration of a general ozone deodorizing device.
In the figure, reference numeral 1 denotes an apparatus main body having an intake port 11 and an exhaust port 12, and an odor component contained in air introduced into the apparatus main body 1 from the intake port 11 by a blower 2 is generated from an ozone generator 3. After deodorizing by reacting with the ozone, the introduced air is exhausted from the exhaust port 12. In the figure,
5 is a reaction chamber, 6 is an ozone decomposition filter, 7 is a pre-filter, and 8 is an electrostatic filter.

[0004]

However, in the conventional ozone deodorizing apparatus using the ozone catalyst shown in FIG. 9, the electrostatic filter is fixedly installed as an additional function, but its life is 3 times as long as the catalyst. ~ 0.5 for 5 years
It is a very short one year. Due to this imbalance of life, the electrostatic filter must be replaced frequently for the catalyst,
The replacement work is complicated.

In view of the above, it is an object of the present invention to provide an ozone deodorizing device capable of extending the life of an electrostatic filter and replacing the electrostatic filter with a catalyst.

[0006]

Means for Solving the Problems According to the means for solving the problems according to the present invention, an odor component contained in the air introduced from an intake port by a blower is reacted with ozone generated from an ozone generator for deodorization, The introduced air is exhausted from the exhaust port,
An ozone deodorizing device provided with an ozone decomposing filter having a catalyst for decomposing ozone remaining in air after deodorization, and an electrostatic deodorizing device provided with an electrostatic filter electrostatically adsorbing dust contained in introduced air, wherein: Is formed in a strip shape and is stretched between a pair of rotating rollers so as to be able to be wound up, and a driving motor for rotating the rotating rollers to wind up the electrostatic filter and a deodorizing operation time are measured. And a take-up amount identifier arranged at a predetermined interval on the electrostatic filter for winding the electrostatic filter by a predetermined amount, and an electrostatic filter for detecting passage of the take-up amount identifier. And a control circuit for controlling ON / OFF of the drive motor based on the output signals from the timer and the winding amount detecting means. A filter winding means for turning on the drive motor at every predetermined deodorizing operation time based on the output signal from the device, and a fixed amount of the electrostatic filter was wound by the winding amount detecting means after the operation of the filter winding means. When this is detected, the filter winding stop means for turning off the drive motor is provided.

[0007]

In the means for solving the above problems, when the timer measures a predetermined deodorizing operation time, the control circuit turns on the drive motor based on the output signal of the timer to rotationally drive the rotary roller to wind up the electrostatic filter. Then, when the movement of the electrostatic filter progresses and the passage of the winding amount identification body is detected by the winding amount detecting means, the filter winding stopping means makes the electrostatic filter based on the output signal from the winding amount detecting means. Is determined to have been wound by a predetermined amount, the drive motor is turned off, and the winding is stopped.

As described above, by automatically winding the electrostatic filter according to the deodorizing operation time, the life of the electrostatic filter can be extended to match the life of the catalyst of the ozone decomposition filter. The number of exchanges is reduced, and the electrostatic filter and the catalyst can be exchanged at the same time and at once. Further, the winding amount detecting means detects the passage of the winding amount identification body of the electrostatic filter and turns off the drive motor, so that the winding amount is always constant regardless of the winding diameter of the rotating roller. The electrostatic filter can be wound up with.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
It will be explained based on. FIG. 1 is a schematic view showing an overall configuration of an ozone deodorizing apparatus according to the first embodiment of the present invention, FIG. 2 is a perspective view showing the same, and FIG. 3 is a perspective view showing a winding mechanism and a winding amount detecting mechanism of an electrostatic filter. 4 and 5 are functional block diagrams of the control circuit, and FIG. 5 is a flowchart thereof. The same functional parts as those of the conventional technique shown in FIG. 9 are designated by the same reference numerals.

As shown in the figure, the ozone deodorizing apparatus of this embodiment is a ceiling-embedded type which is arranged in a ceiling space U which is partitioned from an indoor space R by a ceiling plate C. In the figure, 1 is an apparatus. It is the main body. As shown in FIGS. 1 and 2, the apparatus main body 1 includes an outer box 1A having a bottom open box shape suspended and supported by four stays S.
And a decorative panel 1B which is arranged at the lower end of the outer box 1A and has an intake port 11 in the center and four exhaust ports 12 formed around the intake port 11, and an outer panel 1A which is provided with an intake port 11 to an exhaust port. 1, an inner box 1C that forms an air flow reaching 12 is formed. As shown in FIG. 1, the inner box 1C has an opening 11C connected to the intake port 11 on the lower surface and an intake air introduced from the intake port 11 on the upper surface. Openings 12C for leading to 12 are formed respectively.

The apparatus main body 1 has a blower 2 for air circulation, an ozone generator 3, a reaction chamber 5, an ozone decomposition filter 6, a prefilter 7 and an electrostatic filter 8 built therein. Among them, the ozone generator 3, the reaction chamber 5, the ozone decomposition filter 6, and the electrostatic filter 8 are installed in the inner box 1C so as to be arranged in the middle of the air passage that is moved upward by the blower 2.

The blower 2 comprises a motor 2A and a fan 2B fitted on the shaft of the motor 2A. And
The motor 2A is attached to the lower surface of the top plate 11A of the outer box 1A, and the tip of the fan 2B is at the upper opening 12C of the inner box 1C.
Is inserted into the inner box 1C through. The ozone generator 3 generates ozone by corona discharge, and is arranged between the ozone decomposition filter 6 and the electrostatic filter 8 in the reaction chamber 5.

The reaction chamber 5 is a portion for causing the introduced air and ozone to react with each other in the inner box 1C to deodorize the odorous components contained in the introduced air.
Is formed by a partition chamber 51 which is connected to and communicates with. The ozone decomposing filter 6 is a honeycomb shaped body coated with an ozone decomposing catalyst in order to decompose the ozone remaining in the air after deodorization. The ozone decomposing filter 6 faces the ozone generator 3 and faces the ozone generator 3. It is located above the interior.

The pre-filter 7 is for adsorbing dust contained in the air introduced through the intake port 11 and the air discharged through the exhaust port 12, and is suctioned below the electrostatic filter 8. It is arranged above the decorative panel 1B so as to face the mouth 11 and the exhaust port 12. The electrostatic filter 8 is for further electrostatically adsorbing dust not removed by the pre-filter 7, and
Is located below. Then, as shown in FIG. 3, the electrostatic filter 8 is formed in a long band shape in order to correspond to the life of the ozone decomposition catalyst, and one end of the electrostatic filter 8 is connected to the winding side rotation roller 21 connected to the drive motor 20. The other end side is wound around the driven side rotation roller 22. The rotating rollers 21 and 22 are rotatably supported in the partition chamber 51. As a result, the electrostatic filter 8
The drive motor 20 is driven to rotationally drive the rotary rollers 21 and 22, so that the roller can be freely wound.

Further, the deodorizing apparatus of this embodiment has the structure shown in FIG.
A timer 2 for measuring the deodorizing operation time, such as 3 and 4.
3, a plurality of winding amount identifying bodies 24 arranged at a predetermined interval on the electrostatic filter 8 for winding a certain amount of the electrostatic filter 8, and a passage of the winding amount identifying body 24 is detected to detect the winding amount. Winding amount detecting means 25 for detecting the winding amount of the electric filter 8
And a control circuit 26 for controlling ON / OFF of the drive motor 20 based on output signals from the timer 23 and the winding amount detection means 25.

As shown in FIG. 3, the winding amount identification body 24 is composed of a plurality of holes provided at one end of the electrostatic filter 8 so as to penetrate the end portion of the filter 8 along the longitudinal direction thereof. As shown in FIGS. 1 and 3, the winding amount detecting means 25 is a light emitting element (for example, a photoelectric tube or a light emitting diode) arranged between the ozone generator 3 and the electrostatic filter 8 in the vicinity of the winding side rotation roller 21. ) 25A and a light receiving element (for example, a photodiode or a phototransistor) which is arranged so as to face the light emitting element 25A and receives the irradiation light of the light emitting element 25A.
5B, the light emitted from the light emitting element 25A passes through the through hole 24 serving as the identification body, and the light receiving element 25A.
When the light is received at B, it is detected that the electrostatic filter 8 is wound by a certain amount.

The control circuit 26 is a general one-chip microcomputer, and includes a CPU and a program R.
An OM, a data RAM, and the like are provided, and control is performed according to a program stored in advance in the ROM. Then, as shown in FIG. 4, the control circuit 26 turns on the drive motor 20 every predetermined deodorizing operation time based on the output signal from the timer 23, and after the filter take-up means 27 operates, When the winding amount detecting means 25 photoelectrically detects that the electrostatic filter 8 has been wound by a certain amount, the drive motor 2
Filter winding stop means 28 for turning off 0 and winding number counting means 29 for counting the number of winding operations of the electrostatic filter 8.
And a replacement informing means 31 for informing the replacement of the electrostatic filter 8 by blinking the display lamp 30 when the winding number counting means 29 has counted a predetermined number of winding times.

In the above structure, in order to deodorize the malodorous components in the air, first, the blower 2 is driven to introduce the external air into the apparatus main body 1 through the intake port 11 and react with the ozone generated from the ozone generator 3. By mixing in the chamber 5, the malodorous components in the air are decomposed and removed. At this time, when the timer 23 measures a predetermined deodorizing operation time, the control circuit 26 causes the timer 2 to operate.
Based on the output signal of No. 3, the drive motor 20 is turned on to rotationally drive the rotary rollers 21 and 22 to wind up the electrostatic filter 8.

As described above, by automatically winding the electrostatic filter 8 in accordance with the deodorizing operation time, the life of the electrostatic filter 8 can be extended to match the life of the catalyst of the ozone decomposition filter 6, so that The number of times the electric filter is replaced is reduced, and the electrostatic filter and the catalyst can be replaced at the same time and at the same time. Here, if the electrostatic filter 8 is simply wound up automatically, the winding diameter of the winding side rotation roller 21 becomes larger than the winding diameter of the driven side rotation roller 22 as the winding progresses. , It is considered difficult to always keep the winding amount constant. In order to deal with this, in the present embodiment, the control circuit 26 performs the following winding control.

That is, as shown in FIGS. 4 and 5, when the timer 23 measures a predetermined deodorizing operation time, the filter winding means 2
Based on this, 7 turns on the drive motor 20 to rotate the winding side rotation roller 21 to wind up the electrostatic filter 8, and at this time, the light emitted from the light emitting element 25A of the winding amount detection means 25 is emitted. , It does not reach the light receiving element 25B because it is blocked by the electrostatic filter 8. Then, when the electrostatic filter 8 moves toward the rotating roller 21 and the irradiation light from the light emitting element 25A passes through the filter through hole 24 as the winding amount identification body and is received by the light receiving element 25B, the filter The winding stopping means 28 determines that the electrostatic filter 8 has been wound by a predetermined amount based on the output signal from the light receiving element 25B, and turns off the drive motor 20 to stop the winding.

In this way, the winding amount detecting means 25 detects the passage of the winding amount identification body 24 of the electrostatic filter 8 and turns off the drive motor 20, so that the winding diameter of the winding rotary roller 21. The electrostatic filter can always be wound with a constant winding amount regardless of the size. Further, when the winding counting means 26 counts the predetermined number of winding times, the exchange notifying means 28 blinks the display lamp 27 based on the counted number of times to prompt the exchange of the electrostatic filter 8.

Next, a second embodiment will be described with reference to FIGS. 6 is a perspective view showing a winding mechanism and a winding amount detecting mechanism of an electrostatic filter according to a second embodiment of the present invention, FIG. 7 is a functional block diagram of a control circuit, and FIG. 8 is a flowchart thereof. In the present embodiment, as shown in FIG. 6, the winding amount identification body 2
4 is a thin and thin tape in which conductive paint is applied on the electrostatic filter 8 or conductive particles such as carbon particles are dispersed in a binder resin having flexibility and heat resistance such as polytetrafluoroethylene. (For example, a product name “Fluorotron” manufactured by Daikin Industries, Ltd.) is adhered on the electrostatic filter 8, and the winding amount detecting means 25 is arranged near the winding side rotation roller 21. The contactor 25C is configured to be electrically conductive by contacting the identification body 25 and detect that the electrostatic filter 8 is wound up by a certain amount.

Further, the filter winding stop means 28 of the control circuit 26, as shown in FIGS. 7 and 8, after the operation of the filter winding means 27, the winding amount detecting means 25 winds the electrostatic filter 8 by a certain amount. When continuity is detected, the drive motor 20
Is configured to be turned off, and other configurations are similar to those of the first embodiment. In the above configuration, after the winding of the electrostatic filter 8 is started by the filter winding means 27, the movement of the electrostatic filter 8 to the rotating roller 21 side proceeds, and the conductivity as the winding amount identification body on the electrostatic filter 8 is reached. When the conductive paint or the like comes into contact with the contactor 25C as the winding amount detecting means, these are electrically conducted and output to the control circuit 26. Then, the filter winding stop means 28 determines that the electrostatic filter 8 has been wound by a predetermined amount based on the output signal from the contact 25C,
The drive motor 20 is turned off to stop the winding. Therefore, the same effect as that of the first embodiment can be obtained.

The present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention. For example, in the above embodiment, an example is described in which the winding amount of the filter is optically or electrically detected to perform the winding control, but in addition to this, the winding amount of the filter is mechanically detected and winding is performed. It is also possible to adopt a configuration for controlling the intake. That is, a plurality of engaging holes as winding amount identification bodies are provided at both ends of the electrostatic filter along the lengthwise direction, and engaging holes are engaged as winding amount detecting means on the outer periphery of the winding side rotation roller. A plurality of engaging projections for winding up the electrostatic filter are provided, and when the engaging projection engages a predetermined number of engaging holes and is wound up, it is determined that the electrostatic filter has been wound by a certain amount. The configuration is such that the removal is stopped. Alternatively, a micro switch or the like may be used.

[0025]

As is apparent from the above description, according to the present invention, by automatically winding the electrostatic filter in accordance with the deodorizing operation time, the life of the electrostatic filter is made equal to that of the catalyst of the ozone decomposing filter. Since the lengths can be made to match, the number of times the electrostatic filter is replaced is reduced, and the electrostatic filter and the catalyst can be replaced at the same time and at the same time.

Further, the take-up amount detecting means detects the passage of the take-up amount identifier of the electrostatic filter and turns off the drive motor, so that the take-up amount of the rotary roller is always constant. The electrostatic filter can be wound according to the winding amount.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an overall configuration of an ozone deodorizing apparatus according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the same.

FIG. 3 is a perspective view showing a winding mechanism and a winding amount detection mechanism of the electrostatic filter.

FIG. 4 is a functional block diagram of a control circuit.

FIG. 5 is the same flowchart.

FIG. 6 is a perspective view showing a winding mechanism and a winding amount detection mechanism of the electrostatic filter according to the second embodiment of the present invention.

FIG. 7 is a functional block diagram of a control circuit.

FIG. 8 is a flowchart of the same.

FIG. 9 is a schematic diagram showing an overall configuration of a conventional ozone deodorizing device.

[Explanation of symbols]

 2 Blower 3 Ozone generator 6 Ozone decomposing filter 8 Electrostatic filter 11 Inlet port 12 Exhaust port 20 Drive motor 21, 22 Rotating roller 23 Timer 24 Winding amount discriminating body 25 Winding amount detecting means 26 Control circuit 27 Filter winding means 28 Filter winding stop means

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location F24F 7/00 A 6925-3L

Claims (1)

[Claims] 1. A odor component contained in the air introduced from a suction port (11) by a blower (2) is reacted with ozone generated from an ozone generator (3) to deodorize, and then the introduced air is discharged. An ozone decomposing filter (6) equipped with a catalyst that decomposes the ozone remaining in the air after deodorization by exhausting it from the exhaust port (12)
And an electrostatic filter (8) for electrostatically adsorbing dust contained in the introduced air, wherein the electrostatic filter (8) is formed in a strip shape and has a pair of rotating rollers. (21) (2
It is stretched between 2) so that it can be rolled up, and the rotary rollers (21) and (22) are driven to rotate to cause electrostatic filter.
A drive motor (20) for winding (8), a timer (23) for measuring deodorizing operation time, and a plurality of electrostatic filters (8) arranged at predetermined intervals on the electrostatic filter (8). The winding amount identification body (24) for winding a fixed amount of the toner and the electrostatic filter (8) by detecting the passage of the winding amount identification body (24).
Winding amount detecting means (25) for detecting the winding amount of the drive motor, and a control circuit for ON / OFF controlling the drive motor (20) based on output signals from the timer (23) and the winding amount detecting means (25). (26), and the control circuit (26) turns on the drive motor (20) every predetermined deodorizing operation time based on the output signal from the timer (23).
And, after the filter winding means (27) is activated, the winding amount detecting means (25)
An ozone deodorizing device comprising: a filter winding stop means (28) for turning off the drive motor (20) when it is detected that the electrostatic filter (8) has been wound by a certain amount.