JP2653280B2 - Ozone deodorizer - Google Patents

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.

[0002]

2. Description of the Related Art Examples of malodorous components in air include ammonia, acetaldehyde, hydrogen sulfide and the like. These odor 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 for deodorizing these malodorous components in the air.

[0003] Ozone is the second most powerful oxidizing agent in the natural world, after fluorine. For this reason, if the ozone remaining in the air after the deodorization is released into the air in the ozone deodorizing device, it will have a bad influence on the human body such as a respiratory disorder. Therefore, the ozone deodorizing device is generally provided with an ozonolysis filter. FIG. 9 is a perspective view showing the entire configuration of a general ozone deodorizing apparatus.
In FIG. 1, 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 the blower 2 is generated from an ozone generator 3. After reacting with the ozone thus deodorized, the introduced air is exhausted from the exhaust port 12. In the figure,
Reference numeral 5 denotes a reaction chamber, 6 denotes an ozone decomposition filter, 7 denotes a pre-filter, and 8 denotes an electrostatic filter.

[0004]

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

[0005] In view of the above, an object of the present invention is to provide an ozone deodorizing apparatus which can extend the life of an electrostatic filter and can replace the electrostatic filter simultaneously with a catalyst.

[0006]

Means for Solving the Problems The object of the present invention is to provide a deodorizing method by reacting an odor component contained in air introduced from an air inlet by a blower with ozone generated from an ozone generator, Exhaust air is exhausted from the exhaust port,
An ozone deodorizing apparatus provided with an ozone decomposing filter having a catalyst for decomposing ozone remaining in deodorized air and an electrostatic filter for electrostatically adsorbing dust contained in introduced air, Is formed in a belt-like shape, and is stretched between a pair of rotating rollers so as to be able to be wound up freely. The drive motor for rotating the rotating roller to wind up the electrostatic filter, and measures a deodorizing operation time. Timer, a winding amount discriminator arranged on the electrostatic filter at a plurality of predetermined intervals to wind a predetermined amount of the electrostatic filter, and an electrostatic filter that detects passage of the winding amount discriminating member and detects the passage of the winding amount discriminator. And a control circuit for controlling ON / OFF of a drive motor based on an output signal 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 filter, and a certain amount of the electrostatic filter wound by the winding amount detecting means after the operation of the filter winding means. And a filter winding stop means for turning off the drive motor when detecting this.

[0007]

In the above 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, rotates the rotating roller, and winds up the electrostatic filter. When the movement of the electrostatic filter advances and the passage of the winding amount discriminating member is detected by the winding amount detecting means, the filter winding stopping means switches the electrostatic filter based on the output signal from the winding amount detecting means. Is determined to have been wound up by a predetermined amount, and the drive motor is turned off to stop winding up.

As described above, by automatically winding the electrostatic filter in accordance with 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 replacements is reduced, and the electrostatic filter and the catalyst can be replaced at the same time and all at once. Also, by detecting the passage of the winding amount discriminating body of the electrostatic filter by the winding amount detecting means and turning off the drive motor, the winding amount is always constant regardless of the winding diameter of the rotating roller. To wind up the electrostatic filter.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will now be described with reference to FIGS.
It will be described based on. FIG. 1 is a schematic view showing the entire configuration of an ozone deodorizing apparatus according to a first embodiment of the present invention, FIG. 2 is a perspective view of the same, and FIG. 3 is a perspective view showing a winding mechanism and a winding amount detecting mechanism of an electrostatic filter. FIG. 4 is a functional block diagram of the control circuit, and FIG. 5 is a flowchart of the same. Note that the same reference numerals are given to the same functional components as those in the prior art shown in FIG.

As shown in the figure, the ozone deodorizing apparatus of this embodiment is of an embedded type which is disposed in a ceiling space U which is separated from a room space R by a ceiling plate C. The main body. As shown in FIGS. 1 and 2, the apparatus main body 1 has an outer box 1A having a bottom-open box shape suspended from four stays S.
A decorative panel 1B which is arranged at the lower end of the outer box 1A and has an intake port 11 at the center and four exhaust ports 12 formed around the intake port 11; The inner box 1C has an opening 11C connected to the air inlet 11 on the lower surface and an air inlet 11 from the air inlet 11 on the upper surface as shown in FIG. An opening 12 </ b> C for leading to each of the openings 12 is formed.

The apparatus main body 1 includes a blower 2 for circulating air, an ozone generator 3, a reaction chamber 5, an ozone decomposition filter 6, a pre-filter 7, and an electrostatic filter 8. Among these, the ozone generator 3, the reaction chamber 5, the ozonolysis filter 6, and the electrostatic filter 8 are housed in the inner box 1C so as to be arranged in the middle of the air passage that rises and flows 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 connected to the upper opening 12C of the inner box 1C.
Through the inner box 1C. The ozone generator 3 generates ozone by corona discharge, and is disposed between the ozone decomposition filter 6 and the electrostatic filter 8 in the reaction chamber 5.

The reaction chamber 5 is a place where the introduced air reacts with ozone in the inner box 1C to deodorize odor components contained in the introduced air.
Is formed by a partition chamber 51 which is connected to the communication port. The ozone decomposition filter 6 is formed by applying an ozone decomposition catalyst to a honeycomb-shaped formed body in order to decompose ozone remaining in the air after deodorization. It is arranged above the inside.

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

The deodorizing apparatus according to the present embodiment has a structure shown in FIG.
Timer 2 for measuring the deodorizing operation time, such as 3, 4
3, a winding amount discriminator 24 arranged at predetermined intervals on the electrostatic filter 8 for winding the electrostatic filter 8 by a fixed amount, and detecting the passage of the winding amount discriminating member 24 and 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 detecting means 25.

As shown in FIG. 3, the winding amount discriminating body 24 includes a plurality of holes provided at one end of the electrostatic filter 8 and penetrating the end of the filter 8 along the longitudinal direction thereof. As shown in FIGS. 1 and 3, the winding amount detecting means 25 includes a light emitting element (for example, a photoelectric tube or a light emitting diode) disposed between the ozone generator 3 and the electrostatic filter 8 near the winding side rotating roller 21. ) 25A and a light receiving element (for example, a photodiode or a phototransistor) arranged opposite to the light emitting element 25A and receiving the irradiation light of the light emitting element 25A.
5B, and the irradiation light of the light emitting element 25A passes through the through hole 24 as the discriminating body and passes through the light receiving element 25A.
When the light is received at B, it is detected that the electrostatic filter 8 has been wound up by a predetermined amount.

The control circuit 26 is a general one-chip microcomputer and includes a CPU, a program R
An OM, a data RAM, and the like are provided, and control is performed according to a program stored in the ROM in advance. 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 winder 27 is operated, When the winding amount detecting means 25 photoelectrically detects that the electrostatic filter 8 has been wound by a predetermined 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 an exchange notifying means 31 for notifying the replacement of the electrostatic filter 8 by blinking the display lamp 30 when the winding number counting means 29 has counted the predetermined number of windings.

In the above configuration, 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
The driving motor 20 is turned on based on the output signal of No. 3 to rotate the rotating 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 so as to match the life of the catalyst of the ozone decomposition filter 6. The number of times of replacement of the electrostatic filter is reduced, and the electrostatic filter and the catalyst can be replaced simultaneously and at once. Here, simply winding the electrostatic filter 8 automatically increases the winding diameter of the winding-side rotating roller 21 as compared with the winding diameter of the driven-side rotating roller 22 as the winding proceeds. It is considered difficult to always keep the winding amount constant. In order to cope 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
7 turns on the drive motor 20 based on this, rotates the winding-side rotating roller 21 and winds up the electrostatic filter 8. At this time, the light emitted from the light emitting element 25A of the winding amount detecting means 25 is However, the light does not reach the light receiving element 25B because it is blocked by the electrostatic filter 8. Then, the movement of the electrostatic filter 8 toward the rotating roller 21 proceeds, and when 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 stop 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 winding.

As described above, the winding amount detecting means 25 detects the passage of the electrostatic filter 8 through the winding amount discriminating body 24 and turns off the drive motor 20. Therefore, the winding diameter of the winding rotary roller 21 is reduced. Regardless of the size, the electrostatic filter can always be wound up with a constant winding amount. When the winding counting means 26 counts a predetermined number of windings, the exchange notifying means 28 blinks the display lamp 27 based on the counted number to prompt the exchange of the electrostatic filter 8.

Next, a second embodiment will be described with reference to FIGS. FIG. 6 is a perspective view showing a winding mechanism and a winding amount detecting 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, and FIG. In this embodiment, as shown in FIG.
4 is a thin and thin tape obtained by applying a conductive paint on the electrostatic filter 8 or dispersing conductive particles such as carbon particles in a flexible and heat-resistant binder resin such as polytetrafluoroethylene. (For example, “Fluorotron” manufactured by Daikin Industries, Ltd.) is stuck on the electrostatic filter 8, and the winding amount detecting means 25 is disposed near the winding-side rotating roller 21. The contact 25C is configured to be electrically conductive when it comes into contact with the discriminating body 25 and to detect that the electrostatic filter 8 has been wound up by a predetermined amount.

As shown in FIGS. 7 and 8, the filter winding stopping means 28 of the control circuit 26 turns on the electrostatic filter 8 by a winding amount detecting means 25 after the filter winding means 27 is operated. When the conduction is detected, the drive motor 20
Is turned off, and other configurations are the same as those of the first embodiment. In the above configuration, after the winding of the electrostatic filter 8 is started by the filter winding unit 27, the movement of the electrostatic filter 8 toward the rotating roller 21 proceeds, and the conductive amount as the winding amount identification body on the electrostatic filter 8 is increased. When the conductive paint or the like comes into contact with the contact 25 </ b> C as the winding amount detecting means, they electrically conduct and output to the control circuit 26. Then, the filter take-up stopping means 28 determines that the electrostatic filter 8 has been taken up by a predetermined amount based on the output signal from the contact 25C,
The drive motor 20 is turned off to stop winding. Therefore, the same effect as in the first embodiment can be obtained.

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made to the above-described embodiment within the scope of the present invention. For example, in the above-described embodiment, the example in which the winding amount of the filter is detected optically or electrically to perform the winding control is described. It is good also as composition which performs taking control. That is, at both ends of the electrostatic filter, a plurality of engagement holes serving as a winding amount discriminator are engaged along the longitudinal direction, and the outer periphery of the winding-side rotating roller is engaged with the engagement holes as winding amount detecting means. A plurality of engagement projections for winding the electrostatic filter are provided. When the engagement projections engage with a predetermined number of engagement holes and are wound, it is determined that the electrostatic filter has been wound up by a predetermined amount and wound. It is configured to stop taking. Alternatively, a microswitch or the like may be used.

[0025]

As is apparent from the above description, according to the present invention, the life of the electrostatic filter is reduced to the life of the catalyst of the ozone decomposition filter by automatically winding the electrostatic filter according to the deodorizing operation time. Since the lengths can be made longer so that they coincide with each other, the number of replacements of the electrostatic filter can be reduced, and the electrostatic filter and the catalyst can be replaced simultaneously and at once.

Further, by detecting the passage of the winding amount discriminator of the electrostatic filter by the winding amount detecting means and turning off the drive motor, a constant constant regardless of the winding diameter of the rotating roller. The electrostatic filter can be wound by the winding amount.

[Brief description of the drawings]

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

FIG. 2 is an external perspective view of the same.

FIG. 3 is a perspective view showing a winding mechanism and a winding amount detecting 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 detecting 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 the same flowchart.

FIG. 9 is a schematic diagram showing the entire configuration of a conventional ozone deodorizing apparatus.

[Explanation of symbols]

 2 Blower 3 Ozone Generator 6 Ozone Decomposition Filter 8 Electrostatic Filter 11 Intake Port 12 Exhaust Port 20 Drive Motor 21, 22 Rotary Roller 23 Timer 24 Winding Amount Discriminator 25 Winding Amount Detecting Means 26 Control Circuit 27 Filter Winding Means 28 Filter winding stop means

──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location B03C 3/02 B01D 53/36 F F24F 7/00

Claims (1)

(57) [Claims] An odor component contained in air introduced from an air inlet (11) by a blower (2) is reacted with ozone generated from an ozone generator (3) to deodorize the air. Ozone decomposing filter (6) equipped with a catalyst that decomposes ozone remaining in air after exhausting through the exhaust port (12) and deodorizing
And an electrostatic filter (8) for electrostatically adsorbing dust contained in the introduced air, wherein the electrostatic filter (8) is formed in a belt-like shape and has a pair of rotating rollers. (21) (2
2) It is stretched so that it can be taken up between the rollers, and rotates the rotating rollers (21) and (22) to rotate the electrostatic filter.
(8) a drive motor (20) for winding up, a timer (23) for measuring a deodorizing operation time, and a plurality of electrostatic filters (8) arranged on the electrostatic filter (8) at predetermined intervals. A winding amount discriminator (24) for winding a predetermined amount of paper, and an electrostatic filter (8) detecting passage of the winding amount discriminating body (24).
A winding amount detecting means (25) for detecting the winding amount of the motor; and a control circuit for controlling ON / OFF of the drive motor (20) based on output signals from the timer (23) and the winding amount detecting means (25). (26), the control circuit (26) comprising: a filter winding means (27) for turning on the drive motor (20) every predetermined deodorizing operation time based on an output signal from the timer (23).
After the operation of the filter winding means (27), the winding amount detecting means (25)
And a filter winding stopping means (28) for turning off the drive motor (20) when detecting that the electrostatic filter (8) has been wound up by a predetermined amount.