WO2017104136A1

WO2017104136A1 - Air purification device

Info

Publication number: WO2017104136A1
Application number: PCT/JP2016/005136
Authority: WO
Inventors: 林　智裕; 茂俊堀切; 真司吉田; 唯松本
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2015-12-17
Filing date: 2016-12-15
Publication date: 2017-06-22
Also published as: CN108430523B; HK1254227A1; JP6735434B2; JP2017108925A; CN108430523A

Abstract

This air purification device comprises: an electrolytic cell (11) having an electrode (10) therein; a storage tank (13) having a filter member (6) and a drainage part (12) therein; a tray (9) in which the electrolytic cell (11) and the storage tank (13) are provided; and a control unit (17). After electrolysis performed by using the electrode (10) has finished, the control unit (17) supplies electrolyzed water generated within the electrolytic cell (11) by the electrolysis using the electrode (10), to the filter member (6) within the storage tank (13), by operating the drainage unit (12) so as to drain the electrolyzed water within the storage tank (13).

Description

Air purification device

The present invention relates to an air purification device for removing floating microorganisms such as bacteria and viruses and odor components from the air.

An air purification device that removes suspended microorganisms and odorous components from the air by electrolyzing water to produce electrolyzed water, supplying the electrolyzed water to the filter member, and allowing air to pass through the filter member has already been provided. Proposed. Conventionally, the structure of this type of air purifier has been as follows.

For example, an air purification device disclosed in Patent Document 1 includes a tray, an electrode, an electrolytic cell that electrolyzes water using the electrode, a filter member that is supplied with electrolytic water, and a blower fan that sends air to the filter member. In preparation. In addition, this air purification device has a structure in which the electrolyzed water generated in the electrolyzer is supplied to the filter member via the water channel in the tray.

JP 2014-190553 A

In such a conventional air purification apparatus, the electrolyzed water generated in the electrolytic cell is gradually moved to the vicinity of the filter member in the tray via the water channel and supplied to the filter member. And by the effect | action of the electrolyzed water supplied to the filter member, a floating microbe and an odor component are removed from air, and what is called disinfection deodorizing effect is exhibited.

By the way, there are cases where the room air needs to be rapidly purified, for example, when the concentration of airborne microorganisms or odorous components in the room air suddenly increases for some reason. In such a case, it is required to quickly increase the electrolytic product concentration of the electrolyzed water supplied to the filter member, thereby promptly enhancing the sterilization and deodorizing effect.

In addition, when restarting the operation of the air purification device that had been stopped, in order to remove the old electrolyzed water used for sterilization and deodorization until just before the operation was stopped, the electrolyzed water in the tray by the pump was removed. Draining takes place. If it does so, since the new water which is not electrolyzed will move in a tray from a water supply tank, the electrolysis product density | concentration of the electrolyzed water supplied to a filter member will fall, and the disinfection deodorizing effect will fall. For this reason, even when restarting the operation of the air purifier that has been stopped, the concentration of the electrolyzed water supplied to the filter member is quickly increased, so that the sterilization and deodorizing effect can be quickly achieved. It is required to increase.

However, it is not easy to quickly increase the electrolytic product concentration of the electrolyzed water supplied to the filter member. This is because the electrolytic cell and the filter member are connected via a narrow water channel, and if the water channel is narrow, the electrolytic water having a high concentration of electrolytic product in the electrolytic cell cannot be quickly supplied to the filter member. The reason why the electrolytic cell and the filter member are connected via a narrow water channel is that the effective capacity of the electrolytic cell is limited in order to generate electrolytic water with a high concentration of electrolytic products in the electrolytic cell in a short time. It is necessary to keep it.

The air purification device according to the present invention can quickly increase the concentration of electrolysis products supplied to the filter member, and thus provides an air purification device that can quickly exhibit the effect of sterilization and deodorization. With the goal.

In order to achieve this object, an air purification apparatus according to the present invention includes an electrolytic cell having an electrode therein, a storage tank having a filter member and a drainage portion therein, and an electrolytic cell and a storage tank inside. And a control unit. When the electrolysis by the electrode is finished, the control unit operates the drainage unit to drain the electrolyzed water in the storage tank, so that the electrolyzed water generated in the electrolytic tank by the electrolysis by the electrode is filtered by the filter in the storage tank. Supply to member.

According to the air purification apparatus of the present invention, when the electrolysis by the electrode is completed, the electrolysis generated in the electrolysis tank by the electrolysis by the electrode is performed by operating the drainage section and draining the electrolyzed water in the storage tank. Water is supplied to the filter member in the storage tank. Thereby, the electrolyzed water immediately after the completion of the electrolysis moves quickly into the storage tank. Therefore, the time for the electrolytic product concentration in the storage tank to reach the target concentration is shortened, and the electrolytic water having a high electrolytic product concentration is quickly supplied to the filter member provided in the storage tank. Therefore, the air purification device can quickly exhibit the sterilization and deodorization effect. Therefore, when it is necessary to rapidly purify the air or when the operation of the air purifying apparatus that has been stopped is restarted, the sterilization and deodorizing effect can be quickly exhibited.

Schematic perspective view of the air purification device according to the first embodiment. Schematic cross-sectional view of the air purification device of the first embodiment Schematic sectional view of the initial state of the drainage tank Schematic cross section after initial drainage of drainage tank Schematic cross section when drain tank is full The figure which shows the relation between the signal output of each detection part and the operation of the electrode and drainage part

An air purification device according to an aspect of the present invention includes an electrolytic cell having an electrode therein, a storage tank having a filter member and a drainage unit therein, a tray in which the electrolytic cell and the storage tank are provided, and a control unit And having. When the electrolysis by the electrode is finished, the control unit operates the drainage unit to drain the electrolyzed water in the storage tank, so that the electrolyzed water generated in the electrolytic tank by the electrolysis by the electrode is filtered by the filter in the storage tank. Supply to member. As a result, the electrolyzed water immediately after the completion of electrolysis quickly moves into the storage tank, so that the electrolytic product concentration of the electrolyzed water in the storage tank quickly reaches the target concentration. Therefore, the air purification device can quickly exhibit the sterilization and deodorization effect.

Further, a drainage tank provided with a full water detection unit may be provided, and the control unit may be configured to operate the drainage unit when the full water detection unit does not detect full water. Thereby, a full water detection part will detect the full water state at the time of the waste_water | drain at which the electrolyzed water in an electrolytic vessel moves to the filter member vicinity. Therefore, drainage is reliably performed in the operation after the drainage tank is attached, old electrolyzed water in the tray is removed, and new electrolyzed water generated by electrolysis is quickly supplied to the filter member. Therefore, the sterilization and deodorizing effect can be further enhanced.

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

(Embodiment 1)
FIG. 1 is a schematic perspective view of the air purification device of the first embodiment. As shown in FIG. 1, the air purification device of the present embodiment includes a substantially box-shaped main body case 1. On the two side surfaces of the main body case 1, there are provided substantially rectangular suction ports 2 for sucking air. Further, a substantially rectangular air outlet 3 for blowing out purified air is provided on the top surface of the main body case 1. The indoor air sucked into the air purifier from the suction port 2 is sterilized and deodorized, and then blown out into the room again from the outlet 3.

FIG. 2 is a schematic cross-sectional view of the air purification device of the first embodiment. As shown in FIG. 2, an air air passage 4 that connects the air inlet 2 to the air outlet 3 is provided in the main body case 1. In addition, in the main body case 1, there are provided a blower section 5 for flowing air through the air air passage 4 from the suction port 2 toward the blowout port 3, and a filter member 6.

The filter member 6 has a rotatable hollow cylindrical shape having a plurality of openings on the surface thereof, and is provided so that the surface of the filter member 6 blocks the air air passage 4.

The blower 5 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.

Further, a water supply tank 7, a drainage tank 8, and a tray 9 are provided in the lower part of the main body case 1, and these can be detached from the main body case 1.

In the tray 9, an electrolytic cell 11 having an electrode 10, a storage tank 13 having a filter member 6 and a drainage part 12 are provided.

Electrolyzed water stays in the storage tank 13, and the lower part of the filter member 6 is immersed in the electrolytic water in the storage tank 13. The drainage section 12 is connected by a pipe 18 so that the electrolyzed water in the storage tank 13 is discharged to the drainage tank 8. Here, a pump is used for the drainage section 12 in the present embodiment.

The electrolytic cell 11 needs to have a limited capacity in order to generate electrolyzed water having a high electrolytic product concentration in a short time. Moreover, the excessive backflow from the storage tank 13 with respect to the electrolytic cell 11 needs to be suppressed. Therefore, the inside of the tray 9 is divided into an electrolytic cell 11 and a storage tank 13 by a partition plate 14. The partition plate 14 restricts free movement of the electrolyzed water between the electrolytic cell 11 and the storage tank 13.

A gap 19 is provided between the bottom surface of the tray 9 and the partition plate 14. The electrolyzed water in the electrolytic cell 11 can move into the storage tank 13 through the gap 19.

The drainage tank 8 is provided with an initial drainage detection unit 15 and a full water detection unit 16. A control unit 17 is provided in the main body case 1. By processing the signal output from the initial drainage detection unit 15, the full water detection unit 16, and the control unit 17, the operation of the drainage unit 12 is controlled.

FIG. 3A is a schematic cross-sectional view of the initial state of the drainage tank. FIG. 3B is a schematic cross-sectional view after the initial drainage of the drainage tank. FIG. 3C is a schematic cross-sectional view of the drain tank when it is full. The example of the waste water detection which changes with water levels is demonstrated using FIG. 3A, FIG. 3B, and FIG. 3C.

As shown in FIG. 3A, the drainage tank 8 is provided with an initial drainage detection unit 15 and a full water detection unit 16. In the present embodiment, the initial drainage detection unit 15 and the full water detection unit 16 use float switches using the

magnetic sensors

20 and 21. When the water level of the electrolyzed water in the drainage tank 8 rises, the inclination of the float switch changes due to buoyancy. Changes in the inclination of the float switch are detected by the

magnetic sensors

20 and 21 provided on the side surface of the drainage tank 8. Thereby, the rise of the water level of the electrolyzed water in the drainage tank 8 can be detected.

In the embodiment of the present invention, as shown in FIG. 3B, the initial drainage detection unit 15 detects an increase in the level of the electrolyzed water in the drainage tank 8 due to drainage from the storage tank 13 accompanying the start of operation of the air purification device. And transmitted to the control unit 17. Further, as shown in FIG. 3C, the full water detection unit 16 detects the full water in the drain tank 8 and transmits it to the control unit 17.

As shown in FIG. 3A, before the operation is started and before the operation is resumed, the user removes the drainage tank 8 and drains the electrolyzed water in the drainage tank 8. Accordingly, since the drainage tank 8 is in a drought state, neither the initial drainage detection unit 15 nor the full water detection unit 16 performs detection. Subsequently, immediately after the start of operation and immediately after the restart of operation, an amount of electrolyzed water equivalent to the water storage capacity of the storage tank 13 is drained. Then, as shown in FIG. 3B, the initial drainage detection unit 15 detects the rise of the electrolytic water level in the drainage tank 8, and the control unit 17 stops the drainage unit 12. Thereafter, the electrolysis and drainage are periodically repeated, and when the drainage tank 8 eventually becomes full, the full water detection unit 16 detects the full water as shown in FIG. 3C. Thereafter, the control unit 17 does not operate the drainage unit 12. Here, the initial drainage means an operation of discharging electrolyzed water in an amount equivalent to the water storage capacity of the storage tank 13 immediately after the start of operation and immediately after the restart of operation.

The purpose of the initial drainage is to drain the old electrolyzed water that has already accumulated in the storage tank 13 before the start of the operation and before the restart of the operation (the effect of sterilization and deodorization is reduced by contact with air). is there. Therefore, the initial drainage detection unit 15 that is a float switch determines whether or not the same amount of electrolyzed water as the storage capacity of the storage tank 13 is actually drained regardless of the flow rate during drainage and the operation time of the drainage unit 12. Detect directly. Thereby, completion | finish of discharge | emission of old electrolyzed water can be detected reliably.

Subsequently, the main operation according to the present invention among the operations of the air purification apparatus will be described.

FIG. 4 is a diagram showing the relationship between the signal output of each detection unit and the operation of the electrode and drainage unit. As shown in FIG. 4, when the operation of the air purification device is started, the drainage section 12 is first activated to perform initial drainage. Thereby, the old electrolyzed water in the storage tank 13 is drained, and new water is supplied from the water supply tank 7. Thus, when the operation of the air purification device is resumed, initial drainage is performed. The old electrolyzed water that has been used for sterilization and deodorization until just before the operation is stopped by the initial drainage and has reduced the sterilization and deodorization effect due to contact with room air is removed from the storage tank 13.

When the initial drainage detection unit 15 detects that the level of the electrolyzed water in the drainage tank 8 has risen due to the initial drainage, the control unit 17 stops the operation of the drainage unit 12 and the initial drainage is completed. Next, the control unit 17 starts electrolysis by the electrode 10 and generates electrolyzed water having a high electrolysis product concentration in the electrolytic cell 11. Furthermore, after completion of electrolysis, the control unit 17 drains part of the electrolyzed water in the storage tank 13 again by the drainage unit 12. Along with this, the electrolyzed water in the electrolytic cell 11 moves to the storage tank 13.

Thereby, the filter member 6 will absorb the electrolyzed water in the storage tank 13. Next, the control unit 17 controls the blower unit 5 to cause the blower unit 5 to start blowing. The indoor air is sucked in from the suction port 2 by the air flow generated by this, and the indoor air passes through the filter member 6 that has absorbed the electrolyzed water, so that floating microorganisms and odor components are removed from the indoor air by the electrolyzed water. .

In the present embodiment, the old electrolyzed water in the storage tank 13 is reduced by the drainage after the end of the electrolysis, and the electrolyzed water corresponding to that amount is supplied from the electrolyzer 11 in communication. Therefore, electrolyzed water having a high concentration of electrolytic product generated in the electrolytic cell 11 can be quickly supplied to the filter member 6. Therefore, the electrolytic product concentration of the electrolyzed water supplied to the filter member 6 can be quickly increased, and the sterilization and deodorizing effect can be quickly exhibited.

In the present embodiment, the connection between the electrolytic cell 11 and the storage tank 13 is realized by providing the gap 19 below the partition plate 14, but the gap 19 is not necessarily provided below the partition plate 14. There is no need to provide. For the purpose of suppressing the backflow from the storage tank 13 to the electrolytic cell 11, it is sufficient if the electrolytic water does not move more than necessary. For example, a water channel through which the electrolyzed water moves may be secured by other means such as a thin pipe. That is, it is a structure that does not move the electrolyzed water more than necessary, and the electrolyzed water may be supplied from the electrolytic cell 11 to the storage tank 13 when the drainage unit 12 operates.

Moreover, the capacity | capacitance of the drainage tank 8 should just be more than the capacity | capacitance which combined the capacity | capacitance with the capacity | capacitance equivalent to the capacity | capacitance of the old electrolyzed water already retained in the storage tank 13 before the operation start or before the operation restart. . The effect of the present embodiment can be obtained as long as the capacity can accommodate old electrolyzed water drained at the time of initial drainage and electrolyzed water drained after completion of electrolysis.

Moreover, although the drainage part 12 in this Embodiment uses the pump, since it should just be a mechanism in which the drainage from the storage tank 13 is possible, the structure is not specifically limited. For example, a mechanism that attaches a valve to the lower part of the storage tank 13 and opens and closes the valve as necessary may be used.

In addition, the initial drainage detection unit 15 and the full water detection unit 16 in the present embodiment use float switches, but are not limited thereto. Other means may be used as long as it is a means capable of detecting the fluctuation of the surface of the electrolyzed water in the drain tank 8 regardless of the operating state of the drainage section 12.

Since the air purification apparatus according to the present invention can quickly supply the electrolyzed water generated in the electrolytic cell to the filter member, it can quickly exhibit the sterilization and deodorizing effect immediately after the operation is resumed. Therefore, it is useful as a quick air purification means in a space where the odor concentration fluctuates, such as a nursing facility.

DESCRIPTION OF SYMBOLS 1 Main body case 2 Suction port 3 Air outlet 4 Air air passage 5 Air blower 6 Filter member 7 Water supply tank 8 Drainage tank 9 Tray 10 Electrode 11 Electrolyzer 12 Drainage part 13 Storage tank 14 Partition plate 15 Initial drainage detection part 16 Full water detection part 17 Controller 18 Piping 19 Clearance 20 Magnetic Sensor 21 Magnetic Sensor

Claims

An electrolytic cell having an electrode inside, a storage tank having a filter member and a drainage unit therein, a tray in which the electrolytic cell and the storage tank are provided, and a control unit,
When the electrolysis by the electrode is finished, the control unit operates the drainage unit to drain the electrolyzed water in the storage tank, so that the electrolyzed water generated in the electrolyzer by electrolysis by the electrode Is supplied to the filter member in the storage tank.
In addition, it has a drainage tank with a full water detector.
The air purification device according to claim 1, wherein the control unit operates the drainage unit when the full water detection unit does not detect full water.