JP6078788B2 - Air purification device - Google Patents

Description

  The present invention relates to an air purification device that removes floating microorganisms such as bacteria and viruses.

  There has already been proposed an air sterilization apparatus that electrolyzes tap water to generate electrolyzed water and uses this electrolyzed water to remove viruses floating in the air.

  In this type of air sterilization apparatus, when the electrolyzed water is circulated for a long time, the electrolyzed water is contaminated, and the electrolysis performance is lowered by the dirt, and the sterilization performance is degraded.

  Therefore, in order to prevent a decrease in sterilization performance, a configuration in which the electrolyzed water is periodically drained is considered (for example, see Patent Document 1).

  Patent Document 1 receives an electrolytic cell, a gas-liquid contact member to which electrolytic water generated by the electrolytic cell is supplied, and electrolytic water flowing from the gas-liquid contact member while storing the electrolytic water generated by the electrolytic cell. A casing is provided with a water receiving tray, a circulation pump that pumps electrolytic water stored in the water receiving tray and supplies it to the gas-liquid contact member again, and a blower fan that sends room air to the gas-liquid contact member.

  And in patent document 1, it arrange | positions collectively the water supply tank for supplying water to a water receiving tray and the drainage tank which receives the water drained from the water receiving tray in one chamber of the upper part of a housing | casing, A take-out door is provided on one side of the water supply tank and the drainage tank.

JP 2011-30697 A

  According to the configuration of Patent Document 1, since the electrolyzed water is circulated, a circulation pump is necessary, and the electrolysis performance deteriorates with time due to the contamination of the electrolyzed water, and the sterilization performance deteriorates. Therefore, in order to prevent the sterilization performance from being deteriorated, the construction is such that the electrolytic water is periodically drained, and there is a problem that a drain tank is required and the structure becomes complicated.

  Therefore, the present invention does not require a circulation pump for circulation of electrolyzed water, and can suppress contamination of electrolyzed water with a simple structure, and can suppress degradation of electrolysis performance and sterilization performance over time. The purpose is to provide.

  In the air purifying apparatus according to the first aspect of the present invention, the main body case has an air inlet and an outlet, and a blower means and an air purifying means are provided in the main body case, and the air purifying means stores water. And a water supply tank that supplies water to the tray, an electrolysis unit that generates electrolyzed water from the water in the tray, and a filter part that is partially immersed in the water in the tray. The air sucked from the intake port by the means is blown to the outlet through the filter unit, the electrolysis unit is provided between the water supply tank and the filter unit, and the bottom shape of the tray The shallowest part of the water depth is between the immersion part of the electrolysis unit and the immersion part of the filter part, and the channel width of the shallowest part of the water depth is narrower than the width of the immersion part of the electrolysis unit. It is characterized in.

  According to the present invention, the shallowest part of the water depth is between the immersion part of the electrolysis unit and the immersion part of the filter part, and the water channel width of the shallowest part of the water depth is the width of the immersion part of the electrolysis unit. With a simple configuration of making it narrower, a flow of water from the water supply tank to the filter unit through the electrolysis unit is formed.

  That is, the water supplied from the water supply tank by the evaporation of water from the filter unit passes through a shallow and narrow water channel between the immersion unit of the electrolysis unit and the immersion unit of the filter unit. The flow rate of water passing from the side to the filter unit side is increased, and the dirt eluted from the filter unit to the water in the tray by the rotation of the filter unit does not flow to the electrolysis unit side.

  Therefore, the electrolyzed water generated by the electrolysis unit is flowed only in one direction on the filter unit side and is supplied to the filter unit, so no circulation pump is required. Since it does not flow, degradation due to electrode contamination can be suppressed.

Schematic of the air purification device according to Embodiment 1 of the present invention. The figure which shows the schematic cross section of the air purification apparatus (A) The top view which shows schematic structure of the air purification means of the air purification apparatus, (b) The block diagram which shows the schematic cross section of the air purification means of the air purification apparatus

(Embodiment 1)
As shown in FIG. 1, the air purification apparatus according to the present embodiment is constituted by a substantially box-shaped main body case 1, and is provided with a substantially rectangular inlet 2 on both side surfaces of the main body case 1. A substantially rectangular air outlet 3 is provided on the top surface of 1.

  As shown in FIG. 2, the main body case 1 is provided with a blowing means 4 and an air purification means 5.

  The air blowing means 4 is provided as an upper part of the main body case 1 and is formed as a so-called sirocco fan including a motor, an impeller rotated by the motor, and a case surrounding them.

  The air purification means 5 includes a tray 6 for storing water, a water supply tank 7 for supplying water to the tray 6, an electrolysis unit 8 for generating electrolyzed water from the water in the tray 6, and a part of the water in the tray 6. Is formed from the filter part 9 immersed in the filter.

  The tray 6 has a box shape with an opening on the top and has a structure capable of storing water. The tray 6 is disposed at the lower part of the main body case 1 and is detachable by sliding horizontally from the main body case 1. Yes.

  The water supply tank 7 is installed on the front side inside the main body case 1 so as to be built in the tray 6, and has a structure that can be detached from the tray 6.

  The water supply tank 7 has a structure that can be sealed with a cap. However, when the water supply tank 7 is installed on the tray 6, the water tap provided on the cap is released and water is supplied to the tray 6. When the water surface rises to the faucet, the water supply tank 7 is sealed by the water surface, the supply of water is stopped, and a constant amount of water can always be supplied.

  The electrolysis unit 8 is composed of a plurality of electrode plates, and the electrode plates are installed so as to be immersed in the water in the tray 6. By energizing these electrodes, water containing chloride ions in the tray 6 is provided. (In this embodiment, a salt tab space is provided between the water supply tank 7 and the electrolysis unit 8 for charging tablet-like salt, and 0.45 g of salt tablet is charged during operation). By doing so, electrolyzed water is generated.

  The filter unit 9 is a member that makes the electrolytic water generated by the electrolysis unit 8 in the tray 6 come into contact with the indoor air sucked into the main body case 1 by the blowing means 4. A filter 9a having a hollow cylindrical shape and provided with a hole through which air can flow is arranged in the circumferential portion, and one end of the filter 9a is rotatably incorporated in the tray 6 so as to be immersed in the electrolytic water of the tray 6. . The filter 9a is rotated by the drive unit (not shown) so that the immersion unit moves away from the electrolysis unit 8, and the electrolytic water and the room air are continuously brought into contact with each other.

  The material constituting the filter 9a is a material that is less reactive to electrolyzed water, that is, a material that is less deteriorated by electrolyzed water, such as polyolefin resin (polyethylene resin, polypropylene resin, etc.), PET (polyethylene terephthalate resin). , Vinyl chloride resin, fluorine resin (PTFE, PFA, ETFE, etc.), cellulosic material, ceramic material, etc. are used, and in this embodiment, polyester is employed.

  As shown in FIG. 3, the air purification means 5 includes a tray 6 on which a water supply tank 7, an electrolysis unit 8, and a filter unit 9 are mounted, and the tray 6 is provided between the water supply tank 7 and the electrolysis unit 8. A salt tub space 10 for charging tablet-like salt is provided, and in this embodiment, 0.45 g of salt tablet is charged.

  Further, as can be seen from FIG. 3B showing the schematic configuration of the AA ′ cross section of FIG. 3A, the depth of the tray 6 varies from the water supply tank space 11 to the salt tub space 10 and the electrolysis unit space 12. The depth of the filter space 13 is almost the same as the water supply tank space 11 and is the shallowest.

  In the above configuration, the operation of the air purification device will be described.

  Tap water is supplied to the tray 6 by the water supply tank 7. At this time, the salt tab is simultaneously put into the tray 6 by the user. The water containing chloride ions is energized by the electrolysis unit 8 and electrolyzed to generate electrolyzed water containing active oxygen species.

  Here, the reactive oxygen species are oxygen molecules having an oxidation activity higher than that of normal oxygen and related substances, and the so-called narrow definition such as superoxide anion, singlet oxygen, hydroxy radical, or hydrogen peroxide. The active oxygen includes so-called broadly active oxygen such as ozone and hypochlorous acid (hypohalogenous acid).

  The electrolyzed water sequentially immerses the entire filter unit 9 by the rotation of the filter unit 9, and comes into contact with the indoor air sucked into the main body case 1 from the air inlet 2 by the blower 4.

  Bacteria, fungi, viruses, odorous components, etc. in the air sucked into the main body case 1 together with room air are decomposed, inactivated, etc. by contacting the electrolytic water on the filter unit 9. The purified air is supplied into the room from the outlet 3.

  Next, features in the present embodiment will be described.

  The filter 9a of the filter unit 9 immersed in the water stored in the tray 6 rotates, and the blown air from the blower hits the wetted portion of the filter 9a of the filter unit 9 coming out of the surface of the stored water, whereby the electrolyzed water is vaporized. Depending on the amount of vaporized water, water is supplied from the water supply tank 7.

  That is, while water is vaporized from the filter 9 a of the filter unit 9, a water flow from the water supply tank 7 to the filter 9 a of the filter unit 9 through the electrolysis unit 8 is generated in the water stored in the tray 6.

  Here, as can be seen from the top view of FIG. 3A, the width W1 of the water channel 14 connecting the electrolytic unit space 12 and the filter space 13 is narrower than the width W2 of the electrolytic unit space 12.

  Due to the narrow width and shallow water depth of the water channel 14, it is possible to generate a flow of water that reaches the filter 9 a of the filter unit 9 through the electrolysis unit 8.

  For example, when the humidification amount, that is, the vaporization amount of water from the filter 9a of the filter unit 9 is 20 cc / min, in this embodiment, the width W1 of the water channel 14 connecting the electrolytic unit space 12 and the filter space 13 is 4 cm. By setting the water depth to 18 mm, a water flow with a flow rate of about 0.5 mm / 10 sec is generated. Although the flow rate is slow, it is sufficient to prevent reverse flow by always flowing.

  In the water storage in the filter space 13, dirt such as germs and dust in the air blown to the filter 9a of the filter unit 9 is accumulated. The dirt of the electrolyzed water generated in the electrolysis unit 8 can be suppressed without flowing into the space 12.

  Furthermore, since the filter 9a of the filter unit 9 rotates so that the immersion part moves away from the electrolysis unit 8, the flow rate of water flowing through the water channel 14 from the electrolysis unit space 12 to the filter space 13 is increased, and the electrolysis unit 8 It is possible to further suppress contamination of the electrolyzed water generated in step (b).

  For example, when the rotation of the filter 9a is 1 rotation / min and the diameter of the cylinder of the filter 9a is about 12 cm, the immersion portion of the filter 9a moves water away from the electrolysis unit 8 at a speed of about 6 mm / sec. The flow rate of water flowing from the electrolytic unit space 12 to the filter space 13 through the water channel 14 can be further increased.

  As described above, according to the air purification apparatus of the present embodiment, paying attention to the amount of water vaporized from the filter 9a of the filter unit 9 and the amount of water supplied from the water supply tank 7, the water supply tank 7 applies the filter 9a to the filter 9a. By utilizing the flow of water, it is possible to suppress the contamination of the electrolyzed water generated by the electrolysis unit 8 over time, suppress the deterioration of electrolysis performance and sterilization performance over time, and increase the electrode cleaning interval. Thus, a maintenance-saving air purification device can be obtained.

  The present invention is an air purification device for removing microorganisms floating in a space, but is also suitable as a humidifier having a function of removing suspended microorganisms.

DESCRIPTION OF SYMBOLS 1 Main body case 2 Air inlet 3 Air outlet 4 Air blowing means 5 Air purification means 6 Tray 7 Water supply tank 8 Electrolysis unit 9 Filter part 9a Filter 10 Salt tub space 11 Water supply tank space 12 Electrolysis unit space 13 Filter space 14 Water channel

Claims (2)

The main body case has an inlet and an outlet,
Blower means and air purification means are provided in the main body case,
The air purification means includes
A tray for storing water,
A water supply tank for supplying water to the tray;
An electrolysis unit for generating electrolyzed water with water in the tray;
Formed from a filter part partially immersed in the water in the tray,
The air sucked from the air inlet by the air blowing means is configured to be blown to the air outlet through the filter unit,
The electrolysis unit is provided between the water supply tank and the filter unit,
The bottom shape of the tray has a shallowest water depth between the immersion part of the electrolysis unit and the immersion part of the filter part,
The air purification apparatus characterized in that the width of the water channel at the shallowest part of the water depth is narrower than the width of the immersion part of the electrolysis unit. The air purifier according to claim 1, wherein the filter unit rotates so that the dipping unit moves away from the electrolysis unit.

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