JP4512862B2 - Fluidized water sterilizer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
This invention certainly on the bactericidal disinfecting apparatus of the flow water aimed at a relatively short distance.
[0002]
[Prior art]
Conventionally, in order to sterilize flowing water with ultraviolet rays, an inlet is provided on one side of the sterilization tank provided with an ultraviolet lamp, an outlet is provided on the other side, and the flowing water is temporarily retained in the sterilization tank. Yes. In addition to the above, an ultraviolet lamp is also installed in the water pipe.
[0003]
Further, there is known an ultraviolet sterilizer in which an ultraviolet lamp is installed at the center of a cylindrical container so that water is eccentrically supplied from one side of the cylindrical container and discharged from the other side (Japanese Patent Laid-Open No. 10-272460). ).
[0004]
[Problems to be solved by the invention]
Each of the sterilizers achieves its purpose, but there are many points to be improved in terms of the uniform irradiation of ultraviolet rays, the flow distance, and the like due to the relationship between the amount of water supplied and the ultraviolet lamp (ultraviolet ray capacity).
[0005]
Further, in the above-mentioned published invention, there is a problem that the water supply is spirally flowed, there is no change in the flow velocity, and there is a temporal identity for the ultraviolet irradiation, but the density identity is likely to be inaccurate. .
[0006]
[Means for solving the problems]
The present invention solves the above-mentioned problems by causing the water supply to reciprocate in and out of the sterilizing lamp and changing the flow velocity and flow direction.
[0007]
That is, the technology of the method is a sterilization method of flowing water characterized in that it is sterilized by reciprocating while changing the flow rate and flow direction of water along the line of a sterilization lamp arranged in parallel in the cylinder. Yes, the reciprocating flow causes the inner peripheral side of the cylindrical body to flow, and then the central part of the cylindrical body to flow.
[0008]
In addition, the invention of the apparatus, in the central portion of the cylindrical body made of an ultraviolet opaque material, is installed in parallel with a tube made of an ultraviolet transparent material, and at one end closed side of the cylindrical body, one end of the tubular body is opened, with flowing water to the other side wall of the cylinder is provided eccentrically water pipe so as to flow in a spiral shape, and the cross-sectional area of the flowing water in the flow path of the cylinder body, the cross-sectional area of the flowing water in the flow path of the tube body unevenly The flow rate of the flowing water is changed, and a plurality of sterilization lamps are installed in parallel and at equal intervals between the inner wall of the cylindrical body and the outer wall of the tubular body, and a drain pipe is connected to the other end of the tubular body. 2. The fluidized water sterilizer according to claim 1, wherein the fluidized water sterilizer is a quartz glass tube.
[0009]
The sterilizing lamp is an ultraviolet lamp including a part of far ultraviolet rays (1900 to 1700 angstroms) from ultraviolet rays in the quartz range (2900 to 1900 angstroms), and the output and irradiation time of the ultraviolet lamp according to the amount of water, water quality, and use. Determine.
[0010]
Although the change in the flow rate in the present invention varies depending on the time to be retained (the time during which sterilization is possible), for example, the diameter and length of the cylinder and the tube are determined within a range of about 2 to 10 times the inflow rate.
[0011]
The amount of eccentricity of the inflow pipe is determined in accordance with the required change in the flow direction. For example, the outer wall of the pipe body is set at the center position of the inflow pipe. If the swirl inflow is insufficient with the eccentric inflow, the directionality of the water flow can be regulated using the guide vanes.
[0012]
The protective layer according to the present invention may be a synthetic resin or an inorganic paint having a quality with low protection of the inner wall of the cylinder and a low adhesion of the underwater particles.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The present invention is a sterilization method of flowing water characterized in that sterilization is performed by reciprocating flow along a line of a sterilization lamp arranged in parallel in a cylinder while changing the flow rate and flow direction of water.
[0014]
In addition, a tubular body made of an ultraviolet light permeable material is installed in parallel at the center of the tubular body made of an ultraviolet light opaque material, and one end of the tubular body is opened on the one end closed side of the tubular body. A water supply pipe is provided eccentric to the end wall, and a plurality of sterilization lamps are installed in parallel and at equal intervals between the inner wall of the cylindrical body and the outer wall of the tubular body, and a water discharge pipe is provided at the other end of the tubular body. It is the fluidized water sterilizer which connected.
[0015]
In the present invention, a sufficient amount of ultraviolet rays is irradiated at a relatively short distance to completely sterilize. The ultraviolet lamp includes an ozone lamp. In this invention, in order to change the flow velocity of flowing water, the area of the flow path may be changed. To spirally flow, the water supply pipe is eccentric, and if necessary, the guide vanes are provided and pressurized water is supplied.
[0016]
For example, a tetrafluoroethylene polymer (trade name: Teflon) is used as a protective layer on the cylindrical wall of the present invention to protect against ultraviolet rays and prevent foreign matter from adhering.
[0017]
【Example】
A glass tube 2 is installed in the center of the stainless steel tube 1 in parallel, and ultraviolet lamps 3 and 3 (for example, UV-C, 2357 angstroms) are provided to the central portion between the inner wall of the stainless steel tube 1 and the outer wall of the glass tube 2. ) Are arranged at equal intervals. One end of the stainless steel cylinder 1 is closed with a closing plate 4, and the flow path on the inner peripheral side of the stainless steel cylinder 1 and the one end opening of the glass tube 2 are communicated with each other on the closing plate 4 side of the stainless steel cylinder 1. The water supply pipe 5 is eccentrically connected to the other end of the stainless steel cylinder 1.
[0018]
The other end of the glass tube 2 is connected to the water discharge pipe 6 through the closing plate 4 a at the other end of the stainless steel tube 1. In the figure, 7 is a tetrafluoroethylene polymer layered on the inner wall of the stainless steel cylinder 1, 8 is a viewing window, and 9 and 9 are support legs. In the figure, 18 is a perforated support plate of the glass tube 2.
[0019]
In the above embodiment, when the water to be sterilized is supplied from the water pipe 5 as indicated by the arrow 10, the water is guided by the guide vanes 17, and as indicated by the arrows 11, 12, and 13, Then, it moves spirally between the outer wall of the glass tube 2 (swirl flow), reaches the inside of the capping plate 4, changes direction, and is guided by the spiral blade 16, and the flow velocity changes as a swirl flow ( It enters into the glass tube 2 and swirls and flows in the glass tube 2 as indicated by arrow 14 and is taken out from the water discharge tube 6 as indicated by arrow 15. If the water supply pipe 5 and the water discharge pipe 6 are made to have the same inner diameter, the water flow becomes the same flow velocity in this portion.
[0020]
Therefore, if the cross-sectional area of the water pipe 5 is set to 1/6 of the cross-sectional area of the gap between the inner wall of the stainless steel tube 1 and the outer wall of the glass tube 2, the flow velocity in the water pipe 5 is set to 1 m / sec. In this case, the flow velocity of the gap is 1/6 m / sec.
[0021]
If the cross-sectional area of the glass tube 2 is 1.5 times the cross-sectional area of the water pipe, the flow velocity in the glass tube 2 is 1 / 1.5 m / sec. In the above, for example, an ultraviolet lamp of 900 W is used at 50 m ³ / h.
[0022]
As described above, the flow velocity can be changed by changing the cross-sectional areas of the water supply pipe 5, the gap and the glass pipe 2. Further, by making the water flow into a swirl flow, the ultraviolet rays can be uniformly irradiated.
[0023]
【The invention's effect】
According to the present invention, since the treated water flows through the glass tube after passing through the gap portion, the treated water can be irradiated with ultraviolet rays over a distance that is twice or more the length of the cylindrical body (since it turns). There is an effect that can be done.
[0024]
Further, the treated water is uniformly irradiated with ultraviolet rays by the flow velocity change and the swirling flow, and as a result, the flow path becomes longer and the treatment time is extended.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view in which a part of an embodiment of the present invention is omitted.
FIG. 2 is also a plan view.
FIG. 3 is a longitudinal side view of the same.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Stainless steel tube 2 Glass tube 3 UV lamp 4, 4a Blocking plate 5 Water supply pipe 6 Water discharge pipe 7 Tetrafluoroethylene polymer 8 Peep window 9 Support leg

Claims (2)

A tube body made of an ultraviolet light transmitting material is installed in parallel to the central part of the tube body made of an ultraviolet light opaque material, and one end of the tube body is opened on one end closing side of the tube body, and the other end of the tube body with flowing water into the side wall provided eccentrically water pipe so as to flow in a spiral shape, and the cross-sectional area of the flowing water in the flow path of the cylinder body, a running water flow rate the cross-sectional area of the flowing water in the flow path of the tube body in the non-uniform A plurality of sterilization lamps are installed in parallel and at equal intervals between the inner wall of the tubular body and the outer wall of the tubular body, and a water discharge pipe is connected to the other end of the tubular body. Sterilizer for flowing water.   2. The fluidized water sterilizer according to claim 1, wherein the tube is a quartz glass tube.

Images