WO2009072220A1

WO2009072220A1 - Water purifying device

Info

Publication number: WO2009072220A1
Application number: PCT/JP2007/074176
Authority: WO
Inventors: Masami Oouti
Original assignee: Masami Oouti
Priority date: 2007-12-06
Filing date: 2007-12-06
Publication date: 2009-06-11

Abstract

A water purifying device comprises a photocatalyst storage space (4) formed between an inner tube (2) and an outer tube (3) so arranged that their axes are vertically directed, an inflow hole (9) and an outflow hole (10) communicating with the photocatalyst storage space (4), and a light source body (11) disposed at the core portion of the inner tube. At least the inner tube (2) is made of a light-transmissive material. The photocatalyst storage space (4) is divided into a plurality of photocatalyst chambers (4a-4h) by partition walls (7) arranged in the radial directions, and each of the photocatalyst chambers is filled with a photocatalyst. Furthermore, the photocatalyst chambers communicate with each other through flow passages (8) provided in the partition walls (7) at their upper and lower positions. The water introduced from the inflow hole (9) flows through all the photocatalyst chambers and is discharged from the outflow hole (10).

Description

'Specification

Water purifier

【—Technical field

[0 0 0 1]

The present invention relates to a water purifier using a photocatalyst.

[Background]

[0 0 0 2]

In general, water is passed through a tank filled with a photocatalyst mainly composed of titanium dioxide, etc., and the photocatalyst is irradiated with ultraviolet rays to decompose harmful organic substances and bacteria in the water, thereby deodorizing and sterilizing the photocatalyst. As a water purifier, there exist some which are shown in patent document 1 and patent document 2, for example.

[0 0 0 3]

However, all of the water purifiers disclosed in the above-mentioned patent documents have a structure that allows water to pass from one end to the other end of the photocatalyst tank in which an ultraviolet lamp is arranged at the center. Is comparable to the vertical length of the tank. Therefore, unless the tank is made too long, sufficient contact residence time with the photocatalyst cannot be obtained, and there is a disadvantage that a reliable and effective photocatalytic separation reaction cannot be obtained. Moreover, there was a limit to lengthening the tank from the viewpoint of the outer shape if the equipment was made compact.

[Patent Document 1] Japanese Patent Laid-Open No. 2 0 0 2-1 0 2 8 5 1

[Patent Document 2] Japanese Patent Application Laid-Open No. 06-2 6 9 7 7 2

DISCLOSURE OF THE INVENTION

[Problems to be solved by the invention]

[0 0 0 4]

Therefore, the present invention incorporates a mechanism capable of taking a long contact residence time with respect to the photocatalyst stored in the photocatalyst storage space, thereby ensuring that harmful organic substances and bacteria contained in tap water and river water are reliably and effectively produced. A simple mechanism that produces water that can be effectively used as various deodorizing and sterilizing cleaning water or as metal cutting water that replaces oil in various metal cutting machines. The main purpose is to provide a water purifier that can be compactly formed.

[Means for solving problems] '

[0 0 0 5]

In order to achieve the above object, the present invention takes the following technical means. That is, in the water purifier according to the present invention, the photocatalyst storage space formed between the inner cylinder and the outer cylinder arranged with the axis oriented in the vertical direction, the inflow port connected to the photocatalyst storage space, and the exhaust. A plurality of photocatalysts by partition walls, each comprising an outlet and a light source disposed at an axial center portion of the inner cylinder, wherein at least the inner cylinder is formed of a light transmissive material, and a photocatalyst housing space is disposed in a radial direction. The photocatalyst chambers are filled with photocatalysts, and the photocatalyst chambers are communicated with each other via flow passages provided above and below the partition walls, so that water flowing in from the inlets is all in the photocatalysts. The structure is configured to discharge from the outlet through the chamber. An ultraviolet lamp is suitable as the light source body.

[0 0 0 6]

In the above invention, it is preferable that the outer cylinder is formed of a light transmissive material, and a plurality of second light source bodies are arranged so as to surround the outer cylinder.

As a result, the photocatalyst is irradiated with light from the second light source body also from the outside of the outer cylinder, and combined with the light irradiation of the central light source body, an efficient photocatalytic separation reaction can be obtained.

One [0 0 0 7]

Furthermore, in the configuration in which the second light source body is provided, it is preferable that a cylindrical member concentric with the outer cylinder is disposed outside the second light source body, and a light reflecting mirror surface is formed on the inner surface thereof. As a result, the light from the second light source body can be directly or directly reflected on the light reflecting mirror surface and applied to the light touch panel, so that the light from the light source body can be used effectively without waste, and a more efficient photocatalyst. Separation reaction can be obtained and effective sterilization, deodorization and purification can be obtained.

【The invention's effect】

[0 0 0 8]

In the present invention, the photocatalyst housing space is divided into a plurality of photocatalyst chambers by partition walls arranged in the radial direction, and these photocatalyst chambers are communicated via flow passages provided above and below the partition walls and flow in from the inlet. Water is discharged from the outlet through all the photocatalyst chambers, so the distance from the inlet to the outlet is increased by the partition compared to the case where no partition is provided in the photocatalyst space. As long as the number of photocatalyst chambers is increased, the contact time between the water and the photocatalyst that passes through the photocatalyst space of the same volume and the irradiation time of the light source body can be increased. In addition, it is possible to effectively obtain sterilization, deodorization, and purification actions, and has excellent effects such as compactness and weight reduction of the apparatus and cost reduction.

In addition, the water obtained by the apparatus of the present invention can be used as various deodorizing and sterilizing washing waters, and can exhibit extremely excellent effects as metal cutting water replacing oil in various metal cutting machines.

[Brief description of the drawings]

[0 0 0 9]

【Figure 1】

It is a front view which shows the 1st Example of the water purifier which concerns on this invention.

【Figure 2】

It is a schematic longitudinal cross-sectional view of the said water purifier.

[Figure 3]

It is a cross-sectional view of the water purification device.

[Figure 4]

It is explanatory drawing which expand | deployed each photocatalyst chamber in the said water purifier.

[Figure 5]

FIG. 4 is a sectional view similar to FIG. 3, showing another embodiment of the present invention.

I: Explanation of symbols]

[0 0 1 0]

1 Water purifier

2 Inner cylinder

3 outer cylinder

4 Photocatalyst storage space

4 a to 4 h photocatalyst chamber

7 Bulkhead

8 Fluent road

9 Inflow (=)

1 0 Discharge port

1 1 First light source 1 2 Second light source

1 3 Cylindrical member

14 Light reflecting mirror surface

BEST MODE FOR CARRYING OUT THE INVENTION

[00 1 1]

1 to 4 show a first embodiment of a watering device according to the present invention. FIG. 1 is a front view, FIG. 2 is a schematic longitudinal sectional view, and FIG. FIG. 4 is an explanatory diagram showing the development of each photocatalyst chamber. '·

[00 1 2]

In the figure, reference numeral 1 denotes a water purifier according to the present invention, in which a photocatalyst housing space 4 is formed between an inner cylinder 2 and an outer cylinder 3 which are arranged with their shaft cores oriented in the vertical direction. The photocatalyst storage space 4 is sealed by the upper plate 5 and the lower plate 6, and the photocatalyst storage space 4 is divided into a plurality of vertical partition walls 7 arranged in the radial direction, in this embodiment, eight photocatalyst chambers 4 a. 4b, 4c, 4d, 4e, 4f, 4g, and 4h. These photocatalyst chambers are filled with photocatalysts. Photocatalyst means a catalyst that decomposes harmful organic substances, bacteria, etc. (photocatalytic separation reaction) when irradiated with light such as ultraviolet rays. For example, titanium dioxide is the main material, and aluminum and A mixture of artificial zeolite consisting of

[00 1 3]

The photocatalyst chambers 4a, 4b, 4c, 4d, 4e, 4f, 4g, and 4h are alternately provided above and below the partition wall 7, as shown in the development explanatory view of FIG. Sequentially communicated through the flow path 8, the photocatalyst chamber 4a is provided with an inlet 9 and the photocatalyst chamber 4h is provided with a discharge port 10. Or from the top to the bottom, all photocatalyst chambers 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h are formed to be discharged from the outlet 10 Has been.

[00 14]

The inner cylinder 2 and the outer cylinder 3 are made of a light transmissive material such as glass or a transparent plastic material, and a first light source body 11 is disposed on the shaft core portion of the inner cylinder 2. Further, a plurality of second light source bodies 12 are arranged in the present embodiment so as to surround the outer cylinder 3 at a predetermined interval in the circumferential direction. In the present embodiment, ultraviolet lamps are used as the light source bodies 11 and 12. -[00 1 5]

Further, a cylindrical member 13 concentric with the outer cylinder 10 is disposed outside the second light source body 12, and an inner surface thereof is formed on the light reflecting surface 14. In the figure, 15 indicates the outer case of the water purifier 1.

[00 1 6]

In the above configuration, the water sent from the outside by the pump 16 flows into the photocatalyst chamber 4a from the inflow port 9, and passes through the flow passage 8 provided in each partition wall 7 so that the photocatalyst chambers 4b, 4c, It passes through 4d, 4e, 4f, 4g and 4h in order, and is taken out from the outlet 10 to the outside. While water passes through each photocatalyst chamber, it is sterilized, deodorized and purified by the action of the photocatalyst by receiving light from the first light source body 1 1 in the center and the second light source body 1 2 outside. Will be purified water. At this time, in this embodiment, light is irradiated from both the inner side of the inner cylinder 2 and the outer side of the outer cylinder 3 to effectively perform the photocatalytic separation reaction, and the second light source body 12 Since the light reflecting mirror surface 14 is formed on the outside, the second The light from the light source 12 can be effectively used toward the photocatalyst without waste, and a more efficient photocatalytic separation reaction can be obtained.

[0 0 1 7]

In the present invention, the light reflecting mirror surface 14 can be omitted from the structure shown in the first embodiment.

[0 0 1 8]

Further, in the present invention, as shown in FIG. 5, in the configuration shown in the first embodiment, the second light source body 12 disposed outside and the cylindrical member 13 including the light reflecting mirror surface 14 are omitted. It can also be formed. In this case, it is preferable to employ a light source body in which the light from the central first light source body 11 sufficiently acts on the catalyst in the photocatalyst chamber.

[0 0 1 9]

(2) Although the embodiments of the present invention have been described above, the present invention is not necessarily limited to the structures of these embodiments. For example, although illustration is omitted, if the upper case 5 is removed along with the outer case 15, the photocatalyst housing space 4 can be opened upward so that the photocatalyst can be exchanged from here. In addition, the present invention can be implemented with appropriate modifications within the scope of the present invention, achieving the object of the present invention, and achieving the following effects.

[Industrial applicability]

[0 0 2 0]

In the present invention, it can be widely used as various sterilization washing water for various industrial use and general household use, as drinking water, or as metal cutting water replacing oil in various metal cutting machines.

Claims

The scope of the claims

[Claim 1]

The photocatalyst storage space formed between the inner cylinder and the outer cylinder arranged with the axis oriented vertically, the inlet and outlet connected to the photocatalyst storage space, and the axis of the inner cylinder The inner cylinder is made of a light transmissive material, and the photocatalyst storage space is divided into a plurality of photocatalyst chambers by partition walls arranged in the radial direction, and each photocatalyst chamber is filled with the photocatalyst. Further, the photocatalyst chambers are communicated with each other through a flow passage provided above and below the partition wall so that water flowing in from the inflow port is discharged from the discharge port through all the photocatalyst chambers. Water purification device formed in the.

[Claim 2]

2. The water purifier according to claim 1, wherein the outer cylinder is formed of a light transmissive material, and a plurality of second light source bodies are arranged so as to surround the outer cylinder.

[Claim 3]

3. The water purifier according to claim 2, wherein a cylindrical member concentric with the outer cylinder is disposed outside the second light source body, and an inner surface thereof is formed on a light reflecting surface.