JP2005224784A - Sterilization line mixer by photocatalyst - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that the water of a water tank, a bath or the like is sterilized by chlorine up to now, and in such a case it is necessary to manage the concentration of chlorine, the cost of equipment is expensive and chlorine exerts a bad influence on the human body, promotes the corrosion of piping and changes the quality of the water. <P>SOLUTION: A sterilization line mixer by a photocatalyst is used which is composed of an agitating element manufactured from a photocatalytic metal having two or more sterilization actions and a transparent pipe through which the agitation element can be irradiated with light from the outside and which realizes sterilization by the photocatalyst. By employing sterilization by the photocatalyst, a sterilization is actualized which dispenses with management of the concentration of chlorine, has inexpensive equipment cost, is harmless to the human body and does not cause the corrosion of piping nor changes in the quality of the water. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a line mixer 7 capable of photocatalytic sterilization, which is intended to sterilize water such as a water tank 9 and a bathtub.

Conventionally, since the Ministry of Health, Labor and Welfare has been instructing sterilization with chemicals (hypochlorite) for water sterilization of the water tank 9 and bathtub, chlorine sterilization is generally used for water sterilization.

Therefore, chlorine sterilization has the following drawbacks.
(B) Chlorine sterilization has high volatility of chlorine, and concentration management for setting a concentration range is very troublesome.
(B) The cost of an automatic injector for chlorine sterilization is high.
(C) The consumption cost of chlorine is required.
(D) Chlorine is a cause of rough skin problems.
(E) Chlorine promotes rusting of piping.
(F) Chlorine alters water quality.

Stirring element 7a made of a photocatalytic metal having a plurality of bactericidal actions, a transparent pipe 7b that enables light irradiation from the outside, a packing 7c that prevents water leakage, a flange 7d and a hexagonal hole for fixing the above Water quality sterilization is performed by using the line mixer 7 that enables photocatalytic sterilization composed of the bolts 7e.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
(A) The water pump 1 is used to transport water from the water tank 9 to the line mixer 7 in order to sterilize the photocatalyst.
(B) When transporting water, a water check valve 2 and a water valve 3 for adjusting the flow rate are provided in order to prevent a back flow of water.
(C) A blower pump 4 for injecting air into the liquid is used to better stir the water.
(D) When transporting air, an air check valve 5 and an air valve 6 for adjusting the flow rate are provided to prevent backflow of air.
(E) A stirring element 7a made of a plurality of photocatalytic metals having a bactericidal action, a transparent pipe 7b enabling light irradiation from the outside, a packing 7c for preventing water leakage, a flange 7d for fixing the above, A line mixer 7 made of hexagonal socket bolts 7e that enables photocatalytic sterilization is provided.

The following configuration is used as follows.
The water in the water tank 9 is sucked into the water pump 1 and supplied to the pipe. At the same time, the blower pump 4 is operated so that air is supplied to the water in the pipe and is sterilized by photocatalyst in a mixed state of water and air. To the line mixer 7.

The water + air supplied in the water + air state vigorously comes into contact with the stirring element 7a made of titanium and titanium alloy having a photocatalytic sterilizing action, and the photocatalytic action is generated by the light source 8 irradiated from the outside of the transparent pipe 7b. It strongly oxidizes and decomposes organic substances such as bacteria (Legionella, Escherichia coli, bacteria, etc.) into harmless water and carbon dioxide.

The stirring element 7a is attached to the line mixer 7 with the same phase angle as that of the same stirring element 7a, thereby forcibly changing the direction of the water flow for each stirring element 7a, thereby further increasing the stirring force.

As a result of increasing the agitation power, the chance that the bacteria come into contact with the agitation element 7a increases, and it is killed by the light from the outside and the photocatalytic sterilization action of the agitation element 7a.

If necessary, the agitating elements 7a can be added in even number units, and the photocatalytic sterilization action can be enhanced.

The water exiting the line mixer 7 is transported to a pipe, fed back to the water tank 9, and further circulated to sterilize the water in the water tank 9.

The invention's effect

The present invention has the following effects.
(B) There is no very troublesome concentration management like chlorine sterilization, and it is free maintenance.
(B) The chlorine concentration automatic control is unnecessary, and the cost is low.
(C) There is no consumable such as chlorine, and the cost is low.
(D) Titanium and titanium alloys are harmless to humans.
(E) Do not promote rusting of piping.
(F) Do not alter the water quality.

The line mixer 7 for sterilizing the photocatalyst is easy to maintain, has a low installation cost, and is effective for decomposition and deodorization of formaldehyde.

Photocatalyst sterilizer flow chart Line mixer top view Line mixer front sectional view Stirring element top view Stirring element front view Bottom view of stirring element

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water pump 2 Water check valve 3 Water valve 4 Blower pump 5 Air check valve 6 Air valve 7 Line mixer 7a Stirring element 7b Transparent pipe 7c Packing 7d Flange 7e Hexagon socket head bolt 8 Light source 9 Water tank

Claims (1)

Stirring element 7a made of a photocatalytic metal having a plurality of bactericidal actions, a transparent pipe 7b that enables light irradiation from the outside, a packing 7c that prevents water leakage, a flange 7d and a hexagonal hole for fixing the above The present invention relates to water quality sterilization by using a line mixer 7 that can be sterilized by a photocatalyst using a bolt 7e. (See Figure 3)

Images