JP2021132841A - Air purification device - Google Patents

Abstract

To provide an air purification device capable of controlling a hypochlorous acid concentration blown from a device independently against a humidification amount.SOLUTION: An air purification device comprises: an adjustment cylinder 33 capable of varying the storage volume of the liquid; and a hypochlorous acid reservoir 32 having the same height of the bottom as that of the bottom of a reservoir part. The reservoir part and the hypochlorous acid reservoir 32 are connected at one end side and the other end side of one pipe. Between the water reservoir and the hypochlorous acid reservoir 32, the adjustment cylinder 33 is branched and connected. The air purification device comprises: a hypochlorous acid reservoir side opening and closing valve 40 arranged between the adjustment cylinder 33 and the hypochlorous acid storage part 32; and a height adjustment part 34 for adjusting the height of the liquid level. The height adjustment part 34, when supplying the hypochlorous acid aqueous solution to the reservoir part, makes a volume of the adjustment cylinder 33 smallest to open the hypochlorous acid reservoir part side valve 40, and when lowering the height of the liquid level, closes the hypochlorous acid reservoir side opening and closing valve 40 to expand a volume of the adjusting cylinder 33.SELECTED DRAWING: Figure 5

Description

The present disclosure relates to an air purification device that removes (sterilizes, deodorizes) bacteria, viruses, airborne bacteria, odors, etc. in the air using water containing hypochlorous acid.

Regarding the method of generating chemicals as fine water particles in order to sterilize the target space, a method of ventilating air through a filter containing an aqueous chemical solution (for example, Patent Document 1 below) and centrifugal force of a rotating body are used. Then, the drug is made to collide with the wall surface (for example, Patent Document 2 below), the aqueous solution of the drug is ejected from the pores using pressurized air (for example, Patent Documents 3 and 4 below), and the drug is subjected to ultrasonic vibration. A method of refining an aqueous solution (for example, Patent Document 5 below) is known.

Hypochlorite water can be used as a drug for the purpose of disinfecting or deodorizing the target space. When hypochlorous acid diffuses into the air in the state of being contained in fine water particles or in the state of a gas, it can come into contact with bacteria, viruses, and odorous components existing in the air and be removed.

In order to maintain the sterilization and deodorizing effect of hypochlorous acid for a long period of time, the concentration of hypochlorous acid blown out from the device into the space is constantly adjusted, and the hypochlorous acid in the target space is maintained. It is necessary to keep the acid concentration constant.

Therefore, in the deodorizing device (for example, Patent Documents 1 and 3 below), in order to maintain the sterilizing and deodorizing effect of air by hypochlorous acid, the humidity is detected and the electrolysis intensity is adjusted to control the hypochlorous acid. The amount of production was controlled.

Japanese Unexamined Patent Publication No. 2016-174853 Japanese Unexamined Patent Publication No. 2009-115440 Japanese Unexamined Patent Publication No. 2000-288075 Japanese Unexamined Patent Publication No. 2011-87905 Japanese Unexamined Patent Publication No. 11-169441

According to such a conventional air purification device, the supply of hypochlorous acid involves humidification. For example, if you want to increase the concentration of hypochlorous acid that blows out into the space even though the target space has reached the optimum humidity, fine water particles containing hypochlorous acid molecules are generated. Since it needs to be sprayed, the target space is over-humidified by water particles. In addition, excessive humidification of the space could cause a drop in room temperature.

In addition, controlling the amount of hypochlorous acid aqueous solution produced by adjusting the electrolysis intensity requires time for electrolysis, and there is a time lag before supplying hypochlorous acid to the space. There is a possibility that the sterilizing and deodorizing effect of

That is, in order to maintain the hypochlorous acid concentration in the space, it was difficult to control the hypochlorous acid concentration released into the space regardless of the amount of humidification.

Therefore, it is an object of the present invention to provide an air purification device capable of independently controlling the concentration of hypochlorous acid blown out from the device with respect to the amount of humidification.

First, as a premise of the present invention, it was examined to control the amount of hypochlorous acid released into the air by using a method of colliding water with a wall surface by utilizing the centrifugal force of a rotating body. It was found that it is important to adjust the particle size of the chemical solution to be collided.

Then, in the present invention, in a liquid micronization chamber in which water is sucked up by a pumping pipe and the hypochlorous acid water released by the centrifugal force of the upper rotating plate is collided and contained in the air, the hypochlorous acid aqueous solution in the pumping pipe is formed. The invention was completed for a configuration for adjusting the liquid level of the liquid.

That is, the air purification device sucks up the hypochlorous acid aqueous solution stored in the water storage part at the bottom by the pumping pipe, releases it by the centrifugal force of the upper rotating plate, and collides with the wall surface arranged on the outer peripheral part to make it finer. In an air purification device equipped with a liquid micronization chamber for impregnating the hypochlorous acid in the air, a adjusting cylinder capable of varying the storage volume of the liquid and hypochlorite having the same bottom surface and bottom surface height of the water storage unit are used. An acid storage unit is provided, and the water storage unit and the hypochlorite storage unit are connected at one end side and the other end side of one pipe, and the adjustment is performed between the water storage unit and the hypochlorite storage unit. The cylinder is branched and connected, and the hypochlorite storage section side on-off valve and the height adjusting section for adjusting the liquid level are provided between the adjusting cylinder and the hypochlorous acid storage section to adjust the height. When supplying the hypochlorous acid aqueous solution to the water storage unit, the unit minimizes the liquid storage volume in the adjustment cylinder, opens the hypochlorite storage unit side on-off valve, and raises the liquid level. When lowering the pressure, the on-off valve on the hypochlorite storage portion side is closed to expand the liquid storage volume in the adjustment cylinder.

As a result, the height of the hypochlorous acid aqueous solution inside the pumping pipe can be adjusted, and the concentration of hypochlorous acid to be blown out can be controlled independently of the amount of humidification.

External view of the air purification device of the premise example 1 of the present invention The figure which shows the schematic cross section of the air purification apparatus of the same premise example 1. A view showing a configuration when the number of rotating plates is increased in the pumping pipe of the same premise example 1 ((a) perspective view, (b) side view, (c) (b) cross-sectional view taken along the line AA). The figure explaining the operation when the liquid level height of the hypochlorous acid aqueous solution in the pumping pipe in the air purification apparatus of the same premise example 1 is changed ((a) example of the liquid level height (water level) of the hypochlorous acid aqueous solution). Figure shown, (b) Relationship between liquid level (water level) of hypochlorous acid aqueous solution and blown-out hypochlorous acid concentration, (c) Relationship between liquid level (water level) and humidification amount of hypochlorous acid aqueous solution Figure showing) The figure which shows the schematic cross section of the air purification apparatus of Embodiment 1. The figure which shows the schematic cross section at the time of adding the on-off valve of the air purification apparatus of Embodiment 1.

In the air purification device according to claim 1 of the present invention, the air purification device sucks up the hypochlorous acid aqueous solution stored in the water storage portion at the bottom by a pumping pipe and discharges it by the centrifugal force of the rotating plate at the upper portion, and the outer peripheral portion. In an air purification device equipped with a liquid micronization chamber that collides with a wall surface arranged in the air to contain finely divided hypochlorous acid in the air, an adjusting cylinder capable of varying the storage volume of the liquid and the bottom surface of the water storage unit are used. A hypochlorous acid storage unit having the same bottom surface height is provided, and the water storage unit and the hypochlorous acid storage unit are connected at one end side and the other end side of one pipe, and the water storage unit and the next The adjustment cylinder is branched and connected between the chlorite storage portions, and the height of the hypochlorite storage portion side on-off valve and the liquid level is adjusted between the adjustment cylinder and the hypochlorite storage portion. A height adjusting unit is provided, and when supplying a hypochlorous acid aqueous solution to the water storage unit, the height adjusting unit minimizes the liquid storage volume in the adjusting cylinder and minimizes the liquid storage volume in the adjusting cylinder. When the side on-off valve is opened to lower the liquid level, the hypochlorite storage portion side on-off valve is closed to increase the liquid storage volume in the adjusting cylinder.

As a result, the height of the hypochlorous acid aqueous solution inside the pumping pipe can be adjusted, and the concentration of hypochlorous acid to be blown out can be controlled independently of the amount of humidification.

Further, the air purification device according to claim 2 is provided with a height detection unit that detects the height of the liquid level in the hypochlorous acid storage unit, and has a cross-sectional area and hypochlorous acid storage at a position from the bottom surface of the water storage unit. The cross-sectional areas at the same position from the bottom surface of the part are equalized.

As a result, when the hypochlorous acid aqueous solution is supplied to the water storage section, the liquid level height detecting section detects the liquid level of the hypochlorous acid aqueous solution in the water storage section, and the hypochlorous acid aqueous solution in the water storage section is detected. The liquid level can be adjusted.

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

(Premise example 1)
First, the air purification device 1 according to the premise example 1 will be described with reference to FIGS. 1 to 5.

As shown in FIG. 1, the air purification device 1 includes a substantially box-shaped housing 2. An intake port 3 is provided on the side surface of the housing 2, and an air outlet 4 is provided on the top surface of the housing 2.

As shown in FIG. 2, a liquid miniaturization chamber 5, a blower unit 6, a concentration detection unit 7, and a height adjusting unit 8 are provided in the housing 2. Further, an air air passage 9 is formed which allows the air intake port 3 to pass through the liquid miniaturization chamber 5 and the air blower unit 6 and communicate with the air outlet 4. That is, the air sucked from the intake port 3 passes through the liquid miniaturization chamber 5, and then is exhausted from the air outlet 4. In the air air passage 9, the concentration detection unit 7 is arranged on the upstream side of the air flow from the liquid miniaturization chamber 5. The concentration detection unit 7 detects the concentration of hypochlorous acid contained in the passing air.

It is also possible to branch the air passage so that only a part of the air sucked from the intake port 3 passes through the liquid miniaturization chamber 5. The air air passage 9 may be branched in the housing 2, and the liquid miniaturization chamber 5 may be provided in one of the branched air passages.

As shown in FIG. 2, the liquid miniaturization chamber 5 includes a hypochlorous acid supply unit 11, a collision wall 12, a water storage unit 13, a height detection unit 14, and an injection device 15.

The collision wall 12 may be formed integrally with the side wall of the liquid miniaturization chamber 5.

The water storage unit 13 is arranged in the lower part of the liquid miniaturization chamber 5.

In order to supply the hypochlorous acid aqueous solution to the water storage unit 13, the hypochlorous acid supply unit 11 opens a supply port 17 in the liquid miniaturization chamber 5 via the water supply pipe 16. A method of supplying an aqueous solution containing hypochlorite to the hypochlorite supply unit 11 in order to supply the hypochlorite aqueous solution to the water storage unit 13, or an electrode inside the hypochlorite supply unit 11. Can be used to generate water by electrolyzing water containing chloride ions. At least, the hypochlorous acid supply unit 11 is a tank capable of storing the hypochlorous acid aqueous solution inside. In addition, the hypochlorous acid supply unit 11 may include a pump (not shown) capable of sending the stored hypochlorous acid aqueous solution to the supply port 17.

The height detection unit 14 can detect the height of the liquid level of the hypochlorous acid aqueous solution stored in the water storage unit 13 in the lower part of the liquid miniaturization chamber 5. Then, based on the detection signal from the height detection unit 14, the height adjustment unit 8 can issue an instruction to supply the hypochlorous acid aqueous solution to the hypochlorous acid supply unit 11. That is, the hypochlorous acid supply unit 11 can supply the hypochlorous acid aqueous solution to the water storage unit 13 based on the instruction of the height adjusting unit 8. Therefore, the hypochlorous acid supply unit 11 determines the relationship between the concentration of hypochlorous acid detected by the concentration detection unit 7 and the height of the liquid level of the hypochlorous acid aqueous solution stored in the water storage unit 13. is important.

The injection device 15 includes a rotary motor 18, a rotary shaft 19, and a pumping pipe 20.

The pumping pipe 20 is vertically arranged in the liquid miniaturization chamber 5 via a rotary motor 18 and a rotary shaft 19 installed on the top surface 21. The pumping pipe 20 has a cylindrical shape and a truncated cone shape. Both of the two bottom surfaces of the truncated cone shape are open, the bottom surface on the side with a small opening area is arranged below the liquid level of the water storage portion 13, and the rotating plate 22 overhanging the outer periphery is on the bottom surface with a large opening area. Is provided. The diameter of the rotating plate 22 may be changed or the number of rotating plates 22 may be increased depending on the amount of air processed by the air purifying device 1. When the number of rotating plates 22 is added as shown in FIG. 3A, the rotating plates 22 can be provided at predetermined intervals in the direction of the rotating shaft 19 as shown in FIG. 3B. In this case, it is desirable to provide an opening 20a at the connecting point between the rotating plate 22a and the pumping pipe in the rotating plate 22a other than the uppermost stage among the plurality of rotating plates. That is, an opening 20a connected to the upper surface of the added rotary plate 22a is provided on the side surface of the pumping pipe 20. As shown in FIG. 3C, the openings 20a may be provided at each predetermined central angle with respect to one rotating plate 22a (the central angle is 180 degrees in the figure). It is possible to blow out the hypochlorous acid aqueous solution onto each rotating plate 22a from the opening 20a.

Further, an obstacle such as an eliminator may be provided in the gap formed between the pumping pipe 20 and the collision wall 12.

In the height direction, the collision wall 12 is provided so as to include a position at the same height as the rotating plate 22 in the liquid miniaturization chamber 5.

In the above configuration, first, a case where water is stored in the water storage unit 13 will be described.

When the air purification device 1 is operated, the rotary motor 18 rotates the rotary shaft 19, and the pumping pipe 20 rotates as the rotary shaft 19 rotates. At this time, the water stored in the water storage unit 13 by the rotation of the pumping pipe 20 rises from the lower end side to the upper end side while rotating along the circumference (inner wall surface) of the pumping pipe 20 by centrifugal force. The water that rises while rotating on the inner wall of the pumping pipe 20 spreads on the circumference as the cross section of the pumping pipe 20 increases, moves to the rotating plate 22 at the upper end, and spreads thinly to form a water film. Since the amount of water is adjusted when the water moves from the lower end side to the upper end side in the pumping pipe 20, the thickness of the water film on the rotating plate 22 becomes uniform.

The water film formed on the upper surface of the rotating plate 22 spreads at high speed from the central portion of the rotating plate 22 to the outer extension portion due to the centrifugal force generated by the rotation, and is discharged as water droplets from the outer extension portion. The discharged water droplets collide with the collision wall 12, are further miniaturized, and are discharged from the air outlet 4 into the target space by the ventilation by the blower unit 6. Alternatively, it is vaporized during transportation by the air. As a result, fine droplets can be added to the air blown out from the air purification device 1, so that the target space can be humidified.

At this time, the detection unit provided in the air air passage 9 detects the temperature and humidity of the intake air, changes the rotation speed of the pumping pipe 20 of the injection device 15, and changes the amount of water droplets discharged from the injection device 15. Can be done. That is, it is possible to control the amount of water contained in the air and control the amount of humidification in the target space.

By the way, in this embodiment, hypochlorous acid water is stored in the water storage unit 13.

Hypochlorous acid water can be supplied from the hypochlorous acid supply unit 11 to the water storage unit 13, the air can be impregnated with hypochlorous acid, and the hypochlorous acid can be released into the target space.

By supplying the hypochlorous acid aqueous solution to the water storage unit 13 based on the instruction of the height adjusting unit 8, the height (water level) of the liquid level in the pumping pipe 20 can be changed. The height adjusting unit 8 is a concentration detecting unit 7 provided in the air air passage 9 on the upstream side of the liquid miniaturization chamber 5, and detects the concentration of hypochlorous acid in the air sucked from the target space. , An instruction will be given to the hypochlorous acid supply unit 11. By changing the height of the liquid level of the hypochlorous acid aqueous solution in the pumping pipe 20, it is possible to change the concentration of the blown out hypochlorous acid without changing the amount of humidification.

Specifically, based on the height of the liquid level detected by the height detection unit 14, the height adjustment unit 8 issues an instruction to supply the hypochlorous acid aqueous solution to the hypochlorous acid supply unit 11, and the hypochlorous acid is hypochlorous acid. The chloric acid supply unit 11 changes the supply amount of hypochlorous acid water and controls the water level in which the pumping pipe 20 is immersed (the rotation speed of the pumping pipe 20 is not changed), so that the hypochlorous acid does not change the humidification amount. It is possible to control the concentration of.

That is, when the height of the liquid level in the pumping pipe 20 is changed, the size (peripheral length) of the portion where the liquid level of the hypochlorous acid aqueous solution and the inner wall of the pumping pipe 20 are in contact with each other changes, and the hypochlorous acid sucked up. The amount of aqueous acid solution can be changed. Further, the distance from the liquid level of the hypochlorous acid aqueous solution to the upper end in the pumping pipe 20 can be changed, and the degree of film thickness thinning due to the expansion of the inner diameter of the pumping pipe 20 can be changed. As described above, the two bottom surfaces of the pumping pipe 20 are both open, and the bottom surface on the side with the smaller opening area is immersed in the water of the water storage unit 13, so that the water level in the pumping pipe 20 is the water storage unit. It also matches the water level of 13.

Therefore, when the amount of water sucked up is changed, the thickness of the water film formed by the rotating plate 22 changes, and the particle size of the water droplets injected from the injection device 15 can be changed. Then, as the particle size changes, the amount of hypochlorous acid volatilized in the air passage 9 changes.

In order to add a more specific explanation, an example of the height (water level) of the hypochlorous acid aqueous solution in the pumping pipe 20 is shown in FIG. 4A, showing the water level and blowing of the hypochlorous acid aqueous solution in the pumping pipe 20. The relationship between the concentration of hypochlorous acid blown out from the outlet 4 is shown in FIG. 4B, and the relationship between the water level in the pumping pipe 20 and the amount of humidification is shown in FIG. 4C.

The position where the liquid level of the hypochlorous acid aqueous solution supplied to the water storage unit 13 is above the bottom surface 23 on the lower end side of the pumping pipe 20 is W1, and the hypochlorous acid aqueous solution having the same concentration as the W1 is stored in the water storage unit 13. When the height (water level) of the hypochlorous acid aqueous solution in the pumping pipe 20 is raised to W2 and W3, the concentration of hypochlorous acid blown out from the device is also C1 to C2 as shown in FIG. 4B. , C3 rises in a nearly proportional relationship. On the other hand, as shown in FIG. 4C, the amount of humidification in the target space hardly changes from H1 to H2 and H3 even if the water level in the pumping pipe 20 rises. In particular, when the height of the liquid level in the pumping pipe exceeds a predetermined height (W2), the amount of humidification does not change.

That is, in order to increase the concentration of hypochlorous acid blown out from the liquid miniaturization chamber 5, the height (water level) of the liquid level of the hypochlorous acid aqueous solution may be increased. To lower the concentration of hypochlorous acid, lower the water level. That is, even in a space where sufficient humidification is performed, the concentration of the hypochlorous acid to be blown out can be controlled by controlling the height of the surface of the hypochlorous acid water supplied to the water storage unit 13, so that electrolysis is performed. It is possible to realize the maintenance of the sterilizing and deodorizing effect of the space more easily than the generation of new hypochlorous acid water by decomposition.

The concentration of hypochlorous acid blown out from the liquid miniaturization chamber 5 is determined by the degree of wetting of the collision wall 12 and the amount of volatilization accompanying a change in the surface area of water particles. That is, the volatilization amount of hypochlorous acid to be blown out can be controlled by making the particle size uniform in the process of forming water droplets in the injection device 15. In order to make the water particles uniform, it is necessary to form a uniform water film on the rotating plate 22. Therefore, regarding the amount of water supplied to the side of the upper surface of the rotary plate 22 near the central axis, the rotary plate 22 is provided with a structure that sucks up water like the pumping pipe 20 of the present embodiment, and rotates. It is preferable to have a function of equalizing the amount of water on one circumference on the plate 22.

FIG. 5 shows an injection device 15a having a form different from that of the injection device 15. It is also possible to directly supply the hypochlorous acid aqueous solution to the inside of the pumping pipe 20 by extending the water supply pipe 16 in the hypochlorous acid supply unit 11 to guide the hypochlorous acid aqueous solution into the pumping pipe 20. Is. The pumping pipe 20 is a cylinder in which the rotating shaft 19 is arranged in the longitudinal direction as in the case of the above-described one, and the cross-sectional area of the upper end is larger than that of the lower end. In particular, the upper end can be opened and the lower end can be closed. When the lower end is closed, the lower part of the pumping pipe 20 can be used as the water storage unit 13. In this case, the height (water level) of the liquid level in the pumping pipe 20 is controlled by supplying the hypochlorous acid aqueous solution into the pumping pipe 20 from the upper part of the pumping pipe 20 using the water supply pipe 16. Is also possible. In the injection device 15a having such a configuration, the amount of hypochlorous acid water to be supplied can be reduced.

As described above, according to the present embodiment, it is possible to provide a space sterilization / deodorization device capable of enhancing the sterilization / deodorization performance with a simple configuration.

(Embodiment 1)
Next, in the first embodiment, a configuration for adjusting the height of the liquid level of the hypochlorous acid aqueous solution in the water storage unit 13 will be described with reference to FIGS. 1 to 4, 5 and 6. .. In order to facilitate understanding, the same configurations as those in Prerequisite Example 1 are designated by the same reference numerals, and detailed description thereof will be omitted.

The configuration of supplying the hypochlorous acid aqueous solution from the hypochlorous acid supply unit to the water storage unit 13 is different from the configuration of the premise example 1. In the first embodiment, the hypochlorous acid supply unit 32, the adjustment cylinder 33, and the height adjustment unit 34 are provided.

As shown in FIG. 5, in order to supply the hypochlorous acid aqueous solution to the water storage unit 13, the hypochlorous acid supply unit 32 is connected to the water storage unit 13 via the water supply pipe 35. A method of supplying an aqueous solution containing hypochlorite to the hypochlorite supply unit 32 in order to supply the hypochlorite aqueous solution to the water storage unit 13, or an electrode inside the hypochlorite supply unit 32. A method of providing 36 and electrolyzing water containing chloride ions to generate it can be used. At least, the hypochlorous acid supply unit 32 is a tank provided with an air hole 42 and capable of storing a hypochlorous acid aqueous solution inside. The water or the hypochlorous acid aqueous solution supplied to the hypochlorous acid supply unit 32 is supplied through the water receiving pipe 32a. The water can be supplied by opening the water receiving on-off valve 32b provided on the water receiving pipe 32a. Since the hypochlorous acid supply unit 32 is provided with an air hole 42, water can be easily poured into the hypochlorous acid supply unit 32.

In addition, the hypochlorous acid supply unit 32 has the height of the bottom surface 37 at the bottom of the hypochlorous acid supply unit 32 and the water storage unit 13 and the bottom surface at the bottom in order to send the stored hypochlorous acid aqueous solution to the water storage unit 13. The 38s are arranged at equal heights and are connected by a water supply pipe 35 below the bottom of each. Further, the hypochlorous acid supply unit 32 and the water storage unit 13 have the same shape. In other words, the cross-sectional shape is the same in the height direction from the bottom surface within the range in which the aqueous solution is stored (the cross-sectional areas of the hypochlorous acid supply section 32 and the water storage section 13 are equal). In the present embodiment, the height detection unit 39 is arranged in the hypochlorous acid supply unit 32.

As a result, if the water level in the hypochlorous acid supply unit 32 is detected, the water level in the water storage unit 13 can be detected. In particular, since the hypochlorous acid supply unit 32 and the water storage unit 13 have the same shape, the hypochlorous acid aqueous solution stored or generated in the hypochlorous acid supply unit 32 should be supplied to the water storage unit 13 in just proportion. You can also.

The adjustment cylinder 33 connects the hypochlorous acid aqueous solution stored or generated in the hypochlorous acid supply unit 32 to the water supply pipe 35 between the water storage units 13. Further, on the water supply pipe 35, a hypochlorous acid storage section side on-off valve 40 is provided between the adjusting cylinder 33 and the hypochlorous acid supply section 32. Further, although not essential, as shown in FIG. 6, a liquid miniaturization chamber side on-off valve 41 may be provided on the water supply pipe 35 between the adjusting cylinder 33 and the water storage unit 13.

The adjusting cylinder 33 is a so-called plunger type pump. As shown in FIGS. 5 and 6, the storage volume of the liquid can be changed by moving the plunger 33a. The plunger 33a can be moved up and down by the rotation of the motor 33b.

The water supply pipe 35 can be summarized as follows.

The water supply pipe 35 is a pipe that connects the water storage unit 13, the adjusting cylinder 33, and the hypochlorous acid supply unit 32. Further, the water supply pipe 35 connects the bottoms of the water storage unit 13, the adjusting cylinder 33, and the hypochlorous acid supply unit 32, respectively. That is, the water supply pipe 35 is a pipe that connects the water storage unit 13 and the hypochlorous acid storage unit 32, and connects the water storage unit 13 and the hypochlorous acid storage unit 32 at one end side and the other end side of one pipe. doing. The adjusting cylinder 33 is branched and connected between the water storage unit 13 and the hypochlorous acid storage unit 32. Further, a hypochlorous acid storage unit side on-off valve 40 may be provided between the adjusting cylinder 33 and the hypochlorous acid storage unit 32.

As a result, when the height adjusting unit 34 supplies the hypochlorous acid aqueous solution to the water storage unit 13, the liquid storage volume in the adjusting cylinder 13 is minimized, and the hypochlorous acid storage unit side on-off valve 40 is opened. When opened, the hypochlorous acid aqueous solution of the hypochlorous acid storage unit 32 moves to the water storage unit 13.

Further, when lowering the liquid level, the hypochlorous acid aqueous solution in the water storage unit 13 can be adjusted by closing the on-off valve 40 on the hypochlorous acid storage unit side and expanding the liquid storage volume in the adjusting cylinder 13. It can be collected in the cylinder 13 and lowered.

As shown in FIGS. 5 and 6, if necessary, the water supply pipe 35 can be branched into a drainage pipe 35a in which the liquid can flow in the vertical direction in the vicinity of the water storage unit 13. In this case, hypochlorous acid can be discharged from the water storage unit 13 by opening the drainage on-off valve 35b provided in the drainage pipe 35a.

According to the above configuration, when the air purification device 31 is operated, the rotary motor 18 rotates the rotary shaft 19 and the pumping pipe 20 rotates as the rotary shaft 19 rotates, as in the first embodiment. At this time, the water stored in the water storage unit 13 by the rotation of the pumping pipe 20 rises from the lower end side to the upper end side while rotating along the circumference (inner wall surface) of the pumping pipe 20 by centrifugal force. The water that rises while rotating on the inner wall of the pumping pipe 20 spreads on the circumference as the cross section of the pumping pipe 20 increases, moves to the rotating plate 22 at the upper end, and spreads thinly to form a water film. Since the amount of water is adjusted when the water moves from the lower end side to the upper end side in the pumping pipe 20, the thickness of the water film on the rotating plate 22 becomes uniform.

The water film formed on the upper surface of the rotating plate 22 spreads at high speed from the central portion of the rotating plate 22 to the outer extension portion due to the centrifugal force generated by the rotation, and is discharged as water droplets from the outer extension portion. The discharged water droplets collide with the collision wall 12, are further miniaturized, and are discharged from the air outlet 4 into the target space by the ventilation by the blower unit 6. Alternatively, it is vaporized during transportation by the air. As a result, fine droplets can be added to the air blown out from the air purification device 1, so that the target space can be humidified.

At this time, the detection unit provided in the air air passage 9 detects the temperature and humidity of the intake air, changes the rotation speed of the pumping pipe 20 of the injection device 15, and changes the amount of water droplets discharged from the injection device 15. Can be done. That is, it is possible to control the amount of water contained in the air and control the amount of humidification in the target space.

By the way, in this embodiment, hypochlorous acid water is stored in the water storage unit 13.

Hypochlorous acid water can be supplied from the hypochlorous acid supply unit 32 to the water storage unit 13, the air can be impregnated with hypochlorous acid, and the hypochlorous acid can be released into the target space.

By supplying the hypochlorous acid aqueous solution to the water storage unit 13 based on the instruction of the height adjusting unit 34, the height (water level) of the liquid level in the pumping pipe 20 can be changed. The height adjusting unit 34 is a concentration detecting unit 7 provided in the air air passage 9 on the upstream side of the liquid miniaturization chamber 5, and detects the concentration of hypochlorous acid in the air sucked from the target space. , The hypochlorous acid storage side on-off valve 40 and the adjusting cylinder 33 or the on-off valve 40 and the liquid miniaturization chamber side on-off valve 41 and the adjusting cylinder 33 are instructed. By changing the height of the liquid level of the hypochlorous acid aqueous solution in the pumping pipe 20, it is possible to change the concentration of the blown out hypochlorous acid without changing the amount of humidification.

Specifically, according to the command of the height adjusting unit 34, the hypochlorous acid storage unit side on-off valve 40 is opened, and the hypochlorous acid aqueous solution is opened from the hypochlorous acid supply unit 32 to the water storage unit 13 through the water supply pipe 25. Can be supplied. That is, a predetermined amount of the hypochlorous acid aqueous solution can be supplied to the water storage unit 13 while the height detecting unit 39 detects the height of the liquid level of the hypochlorous acid aqueous solution in the hypochlorous acid supply unit 32. .. The height of the liquid level at this time is the highest. After that, when the hypochlorous acid storage section side on-off valve 40 is closed to increase the volume of the adjusting cylinder 33, the hypochlorous acid aqueous solution supplied to the water storage section 13 is recovered and the height of the liquid level is lowered. be able to.

Next, in order to further raise the height of the liquid level of the hypochlorous acid aqueous solution, the on-off valve 41 on the liquid miniaturization chamber side is closed and the hypochlorous acid storage portion side is opened and closed by the command of the height adjusting unit 34. The valve 40 is opened, the hypochlorous acid water stored in the hypochlorous acid supply unit 32 is sucked into the adjusting cylinder 13, and then the hypochlorous acid storage unit side on-off valve 40 is closed. Next, by opening the on-off valve 41 on the liquid miniaturization chamber side and pushing out the hypochlorous acid aqueous solution from the adjusting cylinder 13, the liquid level height of the hypochlorous acid aqueous solution in the water storage unit 13 can be raised. First, the suction of the adjusting cylinder 33 is based on the water level of the height detecting unit 39 when the height adjusting unit 34 opens both the hypochlorous acid storage side on-off valve 40 and the liquid miniaturization chamber side on-off valve 41. By controlling the operating amount and the pushing operation amount, the liquid level height of the hypochlorous acid aqueous solution in the water storage unit 13 can be adjusted higher.

Further, when the hypochlorous acid storage section side on-off valve 40 is closed and operated in the direction of expanding the volume of the adjustment cylinder 33 by the command of the height adjusting section 34, the hypochlorous acid storage section 13 is stored through the water supply pipe 35. The hypochlorous acid aqueous solution can be recovered in the adjusting cylinder 33. If the recovered hypochlorous acid aqueous solution is supplied to the water storage unit 13 again, it can be reused.

That is, since the water level can be adjusted in the water storage unit 13 without extra drainage, the concentration of hypochlorous acid blown out from the outlet 4 can be changed quickly.

The air purification device is expected to play an active role as an air purification device for sterilizing and deodorizing households, offices, public spaces, and the like.

1 Air purification device 2 Housing 3 Intake port 4 Air outlet 5 Liquid miniaturization room 6 Blower 7 Concentration detection 8 Height adjustment 9 Air air passage 11 Hypochlorite supply 12 Collision wall 13 Water storage 14 Height Detection unit 15 Injection device 15a Injection device 16 Water supply pipe 17 Supply port 18 Rotating motor 19 Rotating shaft 20 Pumping pipe 21 Top surface 22 Rotating plate 22a Rotating plate 23 Bottom side on the lower end side 31 Air purification device 32 Hypochlorite supply unit 32a Water piping 32b Water receiving on-off valve 33 Adjusting cylinder 33a Plunger 33b Motor 34 Height adjusting part 35 Water supply pipe 35a Drain pipe 35b Draining on-off valve 36 Electrode 37 Bottom 38 Bottom 39 Height detector 40 Hypochlorite storage side On-off valve 41 Liquid miniaturization chamber side on-off valve 42 Air hole

Claims (2)

The hypochlorous acid aqueous solution stored in the water storage part at the bottom is sucked up by the pumping pipe, released by the centrifugal force of the rotating plate at the top, and collided with the wall surface arranged at the outer periphery to release the finely divided hypochlorous acid into the air. In an air purification device equipped with a liquid miniaturization chamber to be included in
An adjustment cylinder capable of varying the liquid storage volume and a hypochlorous acid storage unit are provided, and the bottom surface of the hypochlorous acid storage unit is arranged at the same height as the bottom surface of the water storage unit.
The water storage unit and the hypochlorous acid storage unit are connected at one end side and the other end side of one pipe, and the adjustment cylinder is branched and connected between the water storage unit and the hypochlorous acid storage unit. ,
It is provided with a hypochlorous acid storage unit side on-off valve arranged between the adjustment cylinder and the hypochlorous acid storage unit, and a height adjusting unit for adjusting the height of the liquid level.
When the hypochlorous acid aqueous solution is supplied to the water storage unit, the height adjusting unit minimizes the volume of the adjusting cylinder, opens the on-off valve on the hypochlorous acid storage unit side, and raises the liquid level. An air purification device that closes the on-off valve to increase the volume of the adjusting cylinder when lowering the pressure. A height detection unit that detects the height of the liquid level is provided in the hypochlorous acid storage unit, and the cross-sectional area at the position from the bottom surface of the water storage unit is equal to the cross-sectional area at the same position from the bottom surface of the hypochlorous acid storage unit. The air purification device according to claim 1.

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