JP2022069706A - Air cleaner - Google Patents

Abstract

To provide an air cleaner capable of adjusting and changing effective chlorine concentration during an operation, and separately controlling effective chlorine concentration in slight acidic electrolytic water which is sprayed as a bactericide solution to sterilization target air, and effective chlorine concentration in the slight acidic electrolytic water to be taken out to an outside of a housing from an external take-out part.SOLUTION: A control device 900 comprises: an air cleaning operation mode part for supplying slight acidic electrolytic water generated by a generation unit 561 to a spray device 53; and a sterilization water operation mode part for taking out the slight acidic electrolytic water generated by the generation unit 561 from an external take-out part 564c. In the operation of the air cleaning operation mode part, by adjusting an electrolytic current value of an electrolysis cell 652, a generation amount of a chlorine gas is regulated to a standard generation amount matching effective chlorine concentration of a standard set value, in the operation of the sterilization water operation mode part, by adjusting an electrolytic current value of the electrolysis cell 652, the generation amount of the chlorine gas is controlled to a target generation amount matching the effective chlorine concentration of a target set value which is arbitrarily set.SELECTED DRAWING: Figure 1

Description

The present invention relates to an air purifier having functions of sterilization, deodorization, dust removal, and gas removal.

Conventionally, some air purifiers are described in, for example, Patent Document 1. It is equipped with a housing having a ventilation path through which the air to be sterilized flows from the upstream side to the downstream side, and is equipped with a spray device that sprays slightly acidic electrolyzed water as a disinfectant solution onto the air to be sterilized flowing through the ventilation path, and a ventilation path. It has a circulation tank that receives the disinfectant solution that falls from the circulation tank, and also has a circulation system that supplies the slightly acidic electrolyzed water of the circulation tank to the spray device and a chemical supply device that supplies the slightly acidic electrolyzed water to the circulation tank. are doing. The drug supply device has an external take-out unit for taking out slightly acidic electrolyzed water to the outside of the housing.

Patent No. 6223112

In the above air purifier, the effective chlorine concentration of the slightly acidic electrolyzed water cannot be arbitrarily controlled at any time in the process of generating the slightly acidic electrolyzed water, and the raw material chemical solution is at a ratio corresponding to the effective chlorine concentration preset at the time of initial setting. The amount and amount of water supplied are supplied, and slightly acidic electrolyzed water is generated by electrolysis. At this time, it is assumed that the electrolytic current value and the amount of water supply per unit time are always constant.

However, the electrolytic current value, the water supply pressure, the quality of tap water of the water supply, etc. are not always constant and are always accompanied by fluctuations, and the effective chlorine concentration of the slightly acidic electrolyzed water fluctuates due to these factors. Therefore, there is no guarantee that the effective chlorine concentration of the slightly acidic electrolyzed water will always be kept constant.

In addition, the effective chlorine concentration of the slightly acidic electrolyzed water sprayed as a disinfectant solution on the air to be sterilized is the same as the effective chlorine concentration of the slightly acidic electrolyzed water taken out from the external extraction part to the outside of the housing. If the effective chlorine concentration that is sometimes set is set with priority given to the effective chlorine concentration of the slightly acidic electrolyzed water taken out to the outside, the highly concentrated slightly acidic electrolyzed water is sprayed into the air to be sterilized, and the air supplied to the room is chlorine. It is accompanied by a pool odor of origin.

The present invention solves the above-mentioned problems, and it is possible to variably adjust the effective chlorine concentration. It is characterized by providing an air purifying device capable of separately controlling the effective chlorine concentration of the slightly acidic electrolyzed water taken out from the housing.

In order to solve the above problems, the air purifier of the present invention includes a housing that forms a purification air passage through which the air to be sterilized flows from the intake port on the upstream side to the air supply port on the downstream side, and a purification air passage. A spray device that sprays slightly acidic electrolyzed water as a sterilizing agent solution onto the flowing air to be sterilized, a generator that generates slightly acidic electrolyzed water, and an external take-out unit that takes out the slightly acidic electrolyzed water to the outside of the housing as sterilized water. It is equipped with a flow path system that connects the generation device, the spray device, and the external extraction unit, and a control device that sets the effective chlorine concentration of the slightly acidic electrolyzed water. It has a flow meter that measures the amount of water supplied through the water supply pipeline and a flow path switching valve that connects the generator to either the spray device or the external outlet so that it can be switched. The generator responds to the electrolytic current value. It has an electrolytic tank in which the amount of chlorine gas generated changes, and the chlorine gas generated in the electrolytic tank is mixed with the water supply flowing through the water supply pipeline to generate slightly acidic electrolyzed water. It has an air cleaning operation mode unit that supplies the slightly acidic electrolyzed water generated in the above to the spray device, and a disinfectant water operation mode unit that takes out the slightly acidic electrolyzed water generated by the generator from the external extraction unit. In the operation of the electrolytic tank, the amount of chlorine gas generated is controlled to the standard amount corresponding to the effective chlorine concentration of the standard set value by adjusting the electrolytic current value of the electrolytic tank. By adjusting the current value, the amount of chlorine gas generated is controlled to a target amount that matches the effective chlorine concentration of the target set value that is arbitrarily set.

In the air purifying device of the present invention, the control device reduces the amount of chlorine gas generated in accordance with the shortage of the water supply amount when the measured water supply amount of the flow meter is smaller than the standard water supply amount during the operation of the air cleaning operation mode unit. The effective chlorine concentration of the slightly acidic electrolyzed water generated by the generator is maintained at the standard set value, and when the measured water supply amount of the flow meter is larger than the standard water supply amount, chlorine gas is generated in proportion to the excess amount of water supply amount. It is characterized in that the amount is increased to maintain the effective chlorine concentration of the slightly acidic electrolyzed water produced by the generator at the standard set value.

In the air purifying device of the present invention, the control device adjusts the flow rate of water supply by adjusting the opening degree of the flow rate adjusting valve provided between the external outlet section and the flow path switching valve when the disinfectant water operation mode section is operated. It is characterized in that the effective chlorine concentration of the sterilized water is arbitrarily controlled.

In the air purifying device of the present invention, the control device becomes one of the operation modes of the air cleaning operation mode unit and the disinfectant water operation mode unit according to the operation of the flow path switching valve.

In the air purifying device of the present invention, the external take-out portion is characterized in that it can swing up and down in an angle range set between a horizontal posture toward the horizontal direction and an inclined posture toward the downward direction.

As described above, according to the present invention, the generator has an electrolytic tank in which the amount of chlorine gas generated changes according to the electrolytic current value, and the chlorine gas generated in the electrolytic tank is transferred to the water supply water flowing through the water supply pipeline. By adjusting the electrolytic current value of the electrolytic tank when the control device operates the air cleaning operation mode unit, the amount of chlorine gas generated is commensurate with the effective chlorine concentration of the standard set value. By controlling the amount of generation to the standard and adjusting the electrolytic current value of the electrolytic tank during operation of the disinfectant water operation mode, the amount of chlorine gas generated can be set arbitrarily. Since it is controlled, the effective chlorine concentration of the slightly acidic electrolyzed water sprayed as a sterilizing agent solution on the air to be sterilized and the effective chlorine concentration of the slightly acidic electrolyzed water taken out as sterilized water from the external outlet to the outside of the housing are controlled separately. can.

Since the control device keeps the effective chlorine concentration of the slightly acidic electrolyzed water at the standard set value by increasing or decreasing the amount of chlorine gas generated according to the measured water supply amount of the flow meter during the operation of the air cleaning operation mode unit, it is slightly acidic. The effective chlorine concentration of the electrolyzed water is always stable.

While maintaining the amount of chlorine gas generated during the operation of the disinfectant water operation mode at the target set value, the flow rate of the water supply is adjusted by adjusting the opening of the flow rate adjustment valve, and a large amount of chlorine gas is mixed with the small flow rate of water supply. By doing so, the effective chlorine concentration of the sterilized water taken out from the external extraction unit can be arbitrarily controlled, and the sterilized water having an effective chlorine concentration higher than the target set value can be taken out. In addition, by changing the target setting value of the amount of chlorine gas generated during the operation of the disinfectant water operation mode and combining it with the flow rate adjustment of the disinfectant water, it is possible to take out the disinfectant water with a higher concentration of effective chlorine concentration. can.

Since the external outlet can swing up and down, the position of the water supply port of the external outlet can be changed according to the height position of the opening of the container that receives the disinfectant water taken out from the external outlet, and the disinfectant can be removed. Eliminates water splashes and spills.

An overall perspective view showing an air purifier according to an embodiment of the present invention. An overall perspective view showing an air purifying device according to the same embodiment and showing a usage state of an external extraction unit. An enlarged perspective view showing an air purifying device according to the same embodiment and showing a usage state of an external extraction unit. Schematic diagram showing the configuration of the air purifier according to the embodiment Schematic diagram showing the configuration of the generation device of the air purifier according to the embodiment. Schematic diagram showing the configuration of the electrolytic cell of the air purifier according to the embodiment. Schematic diagram showing the operation panel of the control device in the air purifying device according to the same embodiment. Schematic diagram showing another operation panel of the control device in the air purifying device according to the same embodiment. Graph diagram showing the relationship between the flow rate and the effective chlorine concentration in the air purifier according to the embodiment. Graph diagram showing the relationship between the current value and the effective chlorine concentration in the air purifier according to the embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 to 6, the air purifier has an intake port 502 at a lower position and an air supply port 503 at an upper position on the door body 501 on the front surface of the housing 500, and is removed from the inside of the housing 500. The air for bacteria 51 forms a purification ventilation passage 52 that flows from the intake port 502 on the upstream side to the air supply port 503 on the downstream side.

In the middle of the purification air passage 52 of the housing 500, the first dustproof net 504, the dry filter 505, the media 506, the spray device 53, and the eliminator 507 are sequentially arranged from the upstream side to the downstream side in the flow direction of the air 51 to be sterilized. , A fan device 600, and a second dustproof net 508 are provided.

The first dustproof net 504, the dry filter 505, and the media 506 are attached to the wind tunnel 509 forming the gas-liquid contact region of the purification air passage 52. The media 506 is arranged inside the wind tunnel 509 so as to be inclined diagonally downward from the side of the intake port 502 toward the back side of the housing 500.

The spray device 53 sprays a disinfectant solution, which is slightly acidic electrolyzed water, on the air to be sterilized flowing through the purification air passage 52 as spray water along the media 506, and includes a plurality of spray nozzles 531. The spray nozzle 531 may be arranged diagonally downward or upward, and the spray device 53 may be arranged at a position facing the media 506.

The slightly acidic electrolyzed water here is an aqueous solution in which the main active ingredient is hypochlorous acid (HCLO), the pH is 5.0-6.5, and the effective chlorine concentration is 10-80 mg / kg.

The media 506 holds the sprayed water sprayed from the spraying device 53 and promotes gas-liquid contact between the air to be sterilized and the disinfectant solution, and is a mat-shaped conductive material. The eliminator 507 captures water droplets and mist and removes them from the air flow, and is arranged above the wind tunnel 509 in which the media 506 is arranged.

A circulation tank 54 is provided below the media 506, and the circulation tank 54 receives and stores the disinfectant solution falling from the purification air passage 52. A relay tank 541 is provided inside the circulation tank 54, and a descent liquid guide plate 542 is provided so as to cover the relay tank 541.

A circulation system 55 is arranged between the circulation tank 54 and the spray device 53, and the circulation system 55 has a circulation pump 550 to supply the disinfectant solution of the circulation tank 54 to the spray device 53.

In the circulation system 55, a circulation pump 550 that also sprays and discharges the disinfectant solution is located below the circulation tank 54, and a three-way flow path switching valve 551 and a check valve 552 are interposed on the downstream side of the circulation pump 550. There is. The drainage system 567 branches from the three-way flow path switching valve 551, and by switching the three-way flow path switching valve 551, one circulation pump 550 can also be used to circulate and discharge the disinfectant solution.

Further, since the check valve 552 blocks the backflow of the bactericide solution in the circulation system 55 when the circulation pump 550 is stopped, if the spray nozzle 531 of the spray device 53 is arranged upward, the circulation pump 550 is circulated when the circulation pump 550 is stopped. The inside of the system 55 is filled with the bactericide solution, and no abnormal noise due to air discharge is generated when the circulation pump 550 is restarted.

The chemical supply system 56 that supplies the slightly acidic electrolyzed water as a bactericidal solution is divided from the generator 561 that generates the slightly acidic electrolyzed water, the water supply system 562 that supplies water to the generator 561, and the water supply system 562. A large flow rate for preparation of slightly acidic electrolyzed water from the above-mentioned relay tank 541 and the generator 561 to the circulation tank 54 via the relay tank 541 and the relay tank 541. It is provided with a preparation supply unit 564 to be supplied in the above, and a replenishment supply unit 566 equipped with a relay pump 565 for dripping slightly acidic electrolyzed water from the relay tank 541 to the circulation tank 54 at a small flow rate for replenishment.

In the present embodiment, the relay tank 541 is arranged inside the circulation tank 54, but it can also be arranged outside the circulation tank 54.

A three-way flow rate switching valve 564b is interposed in the dispensing supply section 564, and an external take-out section 564c is connected to the three-way flow path switching valve 564b via a flow rate adjusting valve 564d. The external take-out portion 564c is provided on the front surface of the door body 501 of the housing 500, and has an upward horizontal posture in which the tip portion provided with the water supply port 564e faces horizontally and a downward tilted posture in which the tip portion faces downward. It swings up and down, and can be tilted at any angle within the angle range (0-90 °) set between the horizontal posture and the tilted posture.

The generator 561 has a solenoid valve 653, a flow meter 654, and an electrolytic cell 655 in the path from the water supply port (strainer) 651 communicating with the water supply system 562 to the delivery port 652 communicating with the dispensing supply unit 564. The hydrochloric acid cartridge 657 of the raw material chemical solution is connected to the electrolytic cell 655 through the chemical solution pump 656.

As shown in FIG. 6, the electrolytic cell 655 has a water-passing structure having an opening 801 communicating with the pipeline of the water supply system 562, and an electrode 802 is arranged in the tank. Then, in the electrolytic cell 655, the hydrochloric acid of the raw material chemical solution supplied into the tank is electrolyzed by the electrode 802 to generate chlorine gas G, and the chlorine gas G flows from the opening 801 of the electrolytic cell 655 through the pipeline of the water supply system 562. It is mixed with water supply to obtain slightly acidic electrolyzed water.

The electrolytic cell 655 can adjust the electrolytic current value, and the amount of chlorine gas generated changes according to the electrolytic current value.

A control device 900 for operating the air purifying device is provided on the front surface of the door body 501, and the control device 900 has an operation panel 901 composed of a touch panel. As shown in FIG. 7, the operation panel 901 has a take-out amount setting unit 902 and a concentration setting unit 903. When the effective chlorine concentration of the standard set value or the target set value is set by the concentration setting unit 903, the electrolytic current value of the electrolytic cell 655 is controlled according to the set value.

Further, in order to adjust the effective chlorine concentration during operation of the disinfectant water operation mode unit, which will be described later, as shown in FIG. 8, the take-out amount setting unit 902, the current value setting unit 904, and the flow rate setting unit 905 are attached to the operation panel 901. It is also possible to display the automatically calculated concentration on the concentration display unit 906 by providing the concentration display unit 906 and setting the electrolytic current value and the flow rate of the water supply flowing through the water supply system 562.

The control device 900 takes out the slightly acidic electrolyzed water generated by the generator 561 from the air cleaning operation mode unit that supplies the spray device 53, and the slightly acidic electrolyzed water generated by the generator 561 from the water supply port 564e of the external take-out unit 564c. It has a sterilized water operation mode unit, and with the operation of the three-way flow path switching valve 564b, either the operation of the air cleaning operation mode unit or the operation of the sterilized water operation mode unit is set.

In the operation of the air cleaning operation mode unit, the amount of chlorine gas generated is controlled to a standard amount commensurate with the effective chlorine concentration of the standard set value for spray applications by adjusting the electrolytic current value of the electrolytic cell 655. In the operation of the sterilized water operation mode section, the amount of chlorine gas generated is arbitrarily set according to the application of the sterilized water by adjusting the electrolytic current value of the electrolytic cell 655. Control the amount.

Further, the following control functions can be set in the control device 900. That is, when the measured water supply amount of the flow meter 654 is smaller than the standard water supply amount during the operation of the air cleaning operation mode unit, the amount of chlorine gas generated is reduced in proportion to the shortage of the water supply amount, and the generation device 561 generates the water supply. The effective chlorine concentration of the slightly acidic electrolyzed water is maintained at the standard set value, and when the measured water supply amount of the flow meter 654 is larger than the standard water supply amount, the amount of chlorine gas generated is increased in proportion to the excess amount of water supply to generate it. The effective chlorine concentration of the slightly acidic electrolyzed water generated by the apparatus 561 is maintained at the standard set value.

On the other hand, during operation of the disinfectant water operation mode unit, the amount of chlorine gas generated is adjusted and the flow rate of the water supply is adjusted by adjusting the opening degree of the flow rate adjustment valve 564d, and a large amount of chlorine gas is mixed by supplying a small amount of water. Therefore, it is possible to arbitrarily control the effective chlorine concentration of the disinfected water taken out from the external extraction unit 564c.

At this time, the electrolytic current value, the flow rate, and the effective chlorine concentration have a relationship as shown in FIGS. 9 and 10, for example. Here, when the effective chlorine concentration is controlled in the range of 30 to 150 ppm, the electrolytic current value is set to 1-5 A as shown in FIG. 10 while the flow rate is kept constant as shown in FIG. Adjust within the range. When the effective chlorine concentration is controlled in the range of 150-390 ppm, the flow rate is in the range of 1-5 L as shown in FIG. 9 while the electrolytic current value is kept constant as shown in FIG. Adjust with.

Hereinafter, the operation of the above configuration will be described.
(Normal operation mode of air purification operation mode)
The drug supply device 56 supplies the slightly acidic electrolyzed water from the relay tank 541 to the circulation tank 54 via the replenishment supply unit 566 by the relay pump 565 by dropping it at a small replenishment flow rate, for example, 0.05 L / min. The effective chlorine concentration of the disinfectant solution in the circulation tank 54 is maintained at 0.1-10 mg / L, and the disinfectant solution in the circulation tank 54 is maintained at a diluted concentration suitable for sterilization.

In this state, the disinfectant solution of the circulation tank 54 is supplied to the spray device 53 by the circulation pump 550, and the disinfectant target air 51 flowing from the upstream side to the downstream side of the purification air passage 52 of the housing 500 is supplied with the spray device 53. The disinfectant solution whose concentration has been adjusted is sprayed from the spray nozzle 531 in the circulation tank 54. Diluting water is supplied to the circulation tank 54 from the diluting water supply system 563 as necessary in order to make up for the amount of loss lost by spraying.

By this spraying, foreign substances such as airborne bacteria and dust contained in the air to be sterilized collide with the sprayed water of the sprayed disinfectant solution, are captured, and are sterilized. Further, the spray water of the disinfectant solution that has reached the media 506 causes the airborne bacteria and dust adhering to the media 506 to flow down, and also takes in foreign substances such as airborne bacteria and dust contained in the air 51 to be sterilized, and the circulation tank 54. It flows in.

In the circulation tank 54, slightly acidic electrolyzed water is dropped at a small flow rate for replenishment, and the effective chlorine concentration of the disinfectant solution in the tank of the circulation tank 54 is maintained at a concentration of 0.1-10 mg / L suitable for sterilization. Therefore, the bacteria flowing into the circulation tank 54 can be reliably sterilized. Further, by directly spraying the disinfectant solution onto the disinfectant target air 51 with high saturation efficiency, foreign substances such as airborne bacteria and dust contained in the disinfectant target air 51 can be taken into the disinfectant solution. In addition to sterilization, dust removal can also be realized.

The sterilized air that has passed through the media 506 passes through the eliminator 507 and is supplied into the room by the fan device 600.
(Preparation operation mode of air purification operation mode)
The three-way flow path switching valve 551 is operated, and the old disinfectant solution in the circulation tank 54 is discharged from the discharge system 567 to the outside of the system by the circulation pump, and the liquid level in the circulation tank 54 is lowered.

Next, with the three-way flow path switching valve 551 returned and the circulation system 55 connected to the spray device 53, the drug supply system 56 supplies water from the water supply system 562 to the generator 561, and the slightly acidic electrolyzed water is supplied in the generator 561. Is generated, and the slightly acidic electrolyzed water having a concentration at the time of production is supplied as a disinfectant solution to the relay tank 541 through the preparation supply unit 564 at a large flow rate for preparation.

At the same time as supplying the slightly acidic electrolyzed water having a concentration at the time of production, the water for dilution is supplied to the circulation tank 54 from the water supply system for dilution 563. Then, a new disinfectant solution consisting of slightly acidic electrolyzed water whose effective chlorine concentration is a set concentration of 0.1-10 mg / L is prepared in the circulation tank 54 in batches, and the disinfectant solution is stored in the circulation tank 54. do.

At this time, the control device 900 is under the operation of the air cleaning operation mode unit, and by adjusting the electrolytic current value of the electrolytic cell 655, the amount of chlorine gas generated is controlled to the standard amount generated in accordance with the effective chlorine concentration of the standard set value. do.

Further, the control device 900 reduces the amount of chlorine gas generated in accordance with the shortage of the water supply amount when the measured water supply amount of the flow meter 654 is smaller than the standard water supply amount, and the slightly acidic electrolyzed water generated by the generation device 561. When the measured water supply amount of the flow meter 654 is larger than the standard water supply amount, the amount of chlorine gas generated is increased according to the excess amount of water supply, and the generation device 561 generates it. The effective chlorine concentration of the slightly acidic electrolyzed water is maintained at the standard set value.
(Cleaning operation mode of air cleaning operation mode)
In the cleaning operation mode, the three-way flow path switching valve 551 is operated, the old disinfectant solution in the circulation tank 54 is discharged from the discharge system 567 to the outside of the system by the circulation pump 550, and the disinfectant solution is discharged from the preparation supply unit 564 in the circulation tank. It is supplied to 54, and the circulation tank 54 is filled with a predetermined amount of a disinfectant solution to wash the circulation tank 54 with a chemical.

At this time, the control device 900 is under the operation of the air cleaning operation mode unit, and by adjusting the electrolytic current value of the electrolytic cell 655, the amount of chlorine gas generated is controlled to the standard amount generated in accordance with the effective chlorine concentration of the standard set value. do.

Further, the control device 900 reduces the amount of chlorine gas generated in accordance with the shortage of the water supply amount when the measured water supply amount of the flow meter 654 is smaller than the standard water supply amount, and the slightly acidic electrolyzed water generated by the generation device 561. When the measured water supply amount of the flow meter 654 is larger than the standard water supply amount, the amount of chlorine gas generated is increased according to the excess amount of water supply, and the generation device 561 generates it. The effective chlorine concentration of the slightly acidic electrolyzed water is maintained at the standard set value.
(Operation of disinfectant water operation mode section)
When the slightly acidic electrolyzed water is taken out as sterilized water from the air purifier, the three-way flow path switching valve 564b is operated to connect the dispensing supply unit 564 to the external outlet unit 564c, and the slightly acidic electrolyzed water is supplied to the water supply port 564d. Take out from.

At this time, the control device 900 switches to the operation of the sterilized water operation mode unit, and by adjusting the electrolytic current value of the electrolytic cell 655, the amount of chlorine gas generated is arbitrarily set according to the use of the sterilized water. Control the target generation amount to match the effective chlorine concentration of the water target set value.

Further, the control device 900 adjusts the amount of chlorine gas generated and the flow rate of the water supply by adjusting the opening degree of the flow rate adjusting valve 564d, and mixes a large amount of chlorine gas with the water supply of a small flow rate to create an external extraction unit. The effective chlorine concentration of the disinfected water taken out from 564c can be arbitrarily controlled.

There are various uses for sterilized water, such as sterilization of fingers, surface sterilization of equipment such as tables and doorknobs, and sterilization of vomit, but according to this embodiment, it depends on the use and the object to be sterilized. Slightly acidic electrolyzed water with the optimum effective chlorine concentration can be freely generated.

Further, when the control device 900 operates the air cleaning operation mode unit, the amount of chlorine gas generated is controlled to a standard amount commensurate with the effective chlorine concentration of the standard set value for spray applications by adjusting the electrolytic current value of the electrolytic tank 655. Furthermore, when the sterilized water operation mode unit is operated, the amount of chlorine gas generated can be arbitrarily set according to the application of the sterilized water by adjusting the electrolytic current value of the electrolytic tank 655 to the effective chlorine concentration of the target set value. Since the amount of generated water is controlled to match the target amount, the effective chlorine concentration of the slightly acidic electrolyzed water sprayed as a sterilizing agent solution on the air to be sterilized and the slightly acidic electrolyzed water taken out from the external extraction section 564c to the outside of the housing 500 as sterilized water. The effective chlorine concentration can be controlled separately.

Since the control device 900 increases or decreases the amount of chlorine gas generated according to the measured water supply amount of the flow meter 654 during the operation of the air cleaning operation mode unit, the effective chlorine concentration of the slightly acidic electrolyzed water is maintained at the standard set value. The effective chlorine concentration of slightly acidic electrolyzed water is always stable.

By adjusting the amount of chlorine gas generated during operation of the disinfectant water operation mode and adjusting the flow rate of the water supply by adjusting the opening of the flow rate adjustment valve 564d, a large amount of chlorine gas is mixed by supplying a small amount of water. By arbitrarily controlling the effective chlorine concentration of the sterilized water taken out from the external extraction unit 564c, the slightly acidic electrolyzed water having an effective chlorine concentration higher than the target set value can be taken out as the sterilized water. Therefore, it is possible to generate sterilizing water that is effective for sterilizing objects having a high concentration of organic substances such as vomit.

As shown in FIGS. 2 and 3, since the external extraction unit 564c can swing up and down, the external extraction unit corresponds to the height position of the opening 401 of the container 400 that receives the disinfectant water taken out from the external extraction unit 564c. The position of the water supply port 564e of 564c can be changed, and the sterilized water does not splash or spill.

51 Bactericidal target air 52 Purification ventilation channel 53 Spraying device 54 Circulation tank 55 Circulation system 56 Chemical supply system 500 Housing 501 Door body 502 Intake port 503 Air supply port 504 1st dustproof net 505 Dry filter 506 Media 507 Eliminator 508 2nd Dustproof net 509 Wind cave 531 Spray nozzle 541 Relay tank 542 Descent liquid guide plate 550 Circulation pump 551 Three-way flow path switching valve 552 Check valve 561 Generator 562 Water supply system 563 Diluting water supply system 564 Preparation supply unit 564b Three-way flow path switching valve 564c External take-out part 564d Flow control valve 564e Water supply port 565 Relay pump 566 Supply supply part 567 Discharge system 600 Fan device 601 Nozzle thin tube 602 1st changeover switch 603 DC power supply 604 Spray water 605 Mist 606 2nd changeover switch 607 Discharge electrode 651 Water supply port (strainer)
652 Solenoid valve 655 Solenoid valve 655 Electrolytic cell 656 Electrolytic cell 656 Hydrochloric acid cartridge 801 Opening 802 Electrode 900 Control device 901 Operation panel 902 Extraction amount setting unit 903 Concentration setting unit 904 Current value setting unit 905 Flow rate setting unit 906 Part G Chlorine gas

Claims (5)

A housing that forms a purification air passage through which the air to be sterilized flows from the intake port on the upstream side to the air supply port on the downstream side, and slightly acidic electrolyzed water as a sterilizing agent solution is applied to the air to be sterilized flowing through the air purification air passage. A spraying device for spraying, a generator for generating slightly acidic electrolyzed water, an external outlet for taking out slightly acidic electrolyzed water as sterilized water to the outside of the housing, and a flow path connecting the generator, the sprayer, and the external outlet. Equipped with a system and a control device to set the effective chlorine concentration of slightly acidic electrolyzed water.
The flow path system is a flow path that connects the water supply pipeline that supplies water to the generator, the flow meter that measures the amount of water supplied through the water supply pipeline, and the generator that can be switched to either the spray device or the external outlet. Has a switching valve,
The generator has an electrolytic cell in which the amount of chlorine gas generated changes according to the electrolytic current value, and the chlorine gas generated in the electrolytic cell is mixed with the water supply water flowing through the water supply pipeline to produce slightly acidic electrolyzed water. Generate and
The control device has an air cleaning operation mode unit that supplies the slightly acidic electrolyzed water generated by the generator to the spray device, and a sterilized water operation mode unit that takes out the slightly acidic electrolyzed water generated by the generator from the external extraction unit. ,
In the operation of the air cleaning operation mode section, the amount of chlorine gas generated is controlled to the standard amount that matches the effective chlorine concentration of the standard set value by adjusting the electrolytic current value of the electrolytic cell.
The operation of the disinfectant water operation mode unit is characterized in that the amount of chlorine gas generated is controlled to a target amount commensurate with the effective chlorine concentration of the target set value, which is arbitrarily set by adjusting the electrolytic current value of the electrolytic cell. Air purifier. When the measured water supply amount of the flow meter is less than the standard water supply amount during the operation of the air cleaning operation mode unit, the control device reduces the amount of chlorine gas generated according to the shortage of the water supply amount and generates it by the generator. A generator that keeps the effective chlorine concentration of slightly acidic electrolyzed water at the standard set value and increases the amount of chlorine gas generated in proportion to the excess amount of water supply when the measured water supply amount of the flow meter is larger than the standard water supply amount. The air purifying device according to claim 1, wherein the effective chlorine concentration of the slightly acidic electrolyzed water produced in 1 is maintained at a standard set value. The control device adjusts the flow rate of the supplied water by adjusting the opening of the flow rate adjustment valve provided between the external take-out part and the flow path switching valve during the operation of the disinfectant water operation mode unit to adjust the effective chlorine concentration of the disinfectant water. The air purifying device according to claim 1, wherein the air purifying device is controlled arbitrarily. 3. The air purifier according to any one of the following items. 1. The described air purifier.

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