JPH0243984A - Ultraviolet-ray sterilizing apparatus - Google Patents

Abstract

PURPOSE:To effectively wash the inside of a treatment tank by fitting an ultrasonic wave vibrator to the treatment tank wherein an ultraviolet lamp having an outer periphery coated with a protective pipe is inserted into the inside thereof and attaching the gland nuts to both ends of the treatment tank while interposing the packings. CONSTITUTION:An ultraviolet lamp 2 whose outer periphery is coated with a protective pipe 3 is inserted into a treatment tank 4 whose both ends are opened. Further the gland nuts 5a, 5b connected with a water supply pipe or a drainage pipe of water to be treated are attached to both ends of the tank 4. An ultrasonic wave vibrator 10 is fitted to the treatment tank 4 and also the gland nuts 5a, 5b are attached to both ends of the tank 4 while interposing the puckings 6 in the contact parts of the tank 4 and the protective pipe 3. As a result, vibration of the ultrasonic wave vibrator is not dispersed to the outside but conducted to only the treatment tank and thereby both the inner wall of the treatment tank and the surface of the protective pipe can be effectively washed.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention aims to improve the sterilization efficiency in an ultraviolet sterilizer that performs sterilization treatment by inserting an ultraviolet lamp whose outer periphery is covered with a protective tube into water to be treated. The purpose is to

(Prior Art) Conventionally, chemical treatments such as chlorine have been used to sterilize pool water, but there is a tendency for chemical sterilization treatments to be refrained from due to the effects they have on the human body. On the other hand, unlike chemical sterilization methods, sterilization of water to be treated using ultraviolet rays has the characteristics of being able to sterilize effectively with almost no effect on the human body, and is applied to various production fields. Demand is increasing.

The most efficient method of sterilization using ultraviolet rays is to insert an ultraviolet lamp whose outer periphery is covered with a protective tube into a treatment tank with both ends open, and at the same time, the water to be treated is This method uses an ultraviolet sterilizer equipped with a gland nut connected to the water supply pipe or drain pipe to sterilize the water by irradiating it with ultraviolet light while it passes around the ultraviolet lamp. .

(Problems to be Solved by the Invention) However, in this method, when the water to be treated passes through the treatment tank, limescale, iron, manganese, etc. in the water to be treated are physically or due to potential difference to the surface of the protection tube or the treatment tank. adheres to the inner wall of the

Since limescale, iron, manganese, etc. adhering to the surface of the UV lamp's protective tube absorb ultraviolet rays, they will interfere with normal sterilization treatment unless frequent protective maintenance is performed.

In addition, since bacteria propagate inside limescale, iron, etc. that adhere to the inner walls of the treatment tank, secondary contamination may occur due to the propagated bacteria after the flow of water to be treated is stopped.

These deposits on the inner walls of the processing tank or on the surface of the UV lamp protection tube are initially removed by cleaning the processing tank regularly, but over time they tend to stick to the inner walls of the processing tank and the surface of the UV lamp protection tube. and becomes irremovable. As a result, the remanufacturing rate deteriorates and it becomes necessary to replace the parts with new parts.

(Means for Solving the Problems) In order to solve the above problems, in the present invention, an ultraviolet lamp whose outer periphery is covered with a protective tube is inserted into a processing tank with both ends open, and both ends of the processing tank are In an ultraviolet sterilizer that is equipped with a gland nut connected to the water supply pipe or drain pipe of the water to be treated, an ultrasonic vibrator is attached to the treatment tank, and the gland nut is attached to the contact part of the treatment tank or protection tube. The present invention proposes an ultraviolet sterilizer that is installed at both ends of a processing tank with packing interposed therebetween.

(Function) That is, in this invention, the processing tank is vibrated by an ultrasonic vibrator, and the water to be treated is thereby resonated, thereby preventing the adhesion of scale, iron, manganese, etc. on the inner wall of the processing tank or the surface of the protective tube of the ultraviolet lamp. It is intended to prevent

However, in conventional equipment, gland nuts are attached to both ends of the treatment tank, which are connected to the water supply pipe or drain pipe for the water to be treated. The ultrasonic vibrations are dispersed into the water supply pipes and drain pipes, and the processing tank cannot be sufficiently vibrated, making it impossible to clean the interior of the ultraviolet sterilization device using ultrasonic vibrations.

Therefore, in this invention, the above-mentioned gland nuts are attached to both ends of the processing tank with packing interposed at the contact part of the processing tank or protection pipe, so that the vibrations of the ultrasonic vibrator are dispersed to the external water supply pipe or drain pipe. This allows the processing tank to be effectively vibrated.

Therefore, in this invention, the inside of the sterilizer can be sufficiently cleaned, and the sterilization efficiency can be improved.

(Example) The present invention will be explained below based on illustrated embodiments.

Reference numeral 1 denotes an ultraviolet sterilizer according to an embodiment of the present invention; 2 an ultraviolet lamp whose outer periphery is covered with a quartz protective tube 3; It is inserted within 4.

5a and 5b are upper and lower gland nuts made of resin that are attached to the upper and lower ends of the processing tank 4, and the upper and lower gland nuts 5a and 5b are connected to the processing tank 4 and the protection tube 3. It is attached to the upper and lower ends of the processing tank 4 with rubber packings 6 for vibration absorption interposed in the contact part, and further
Support pillars installed around 7. By inserting the ends of ... into the upper gland nut 5a and the lower gland nut 5b and tightening the nuts, the processing tank 4 and the protection tube 3 of the ultraviolet lamp 2 are held between the upper gland nut 5a and the lower gland nut 5b. and fix it.

In addition, when installing the upper gland nut 5a and the lower gland nut 5b, rubber packing 6 for vibration absorption is provided in the hole.
The drain fitting 8 and the water supply port fitting 9 for the water to be treated are installed with the water outlet fitting 8 interposed therebetween, and the drain pipe is connected to the drain port fitting 8, and the water supply pipe is connected to the water supply port fitting 9.

Further, an ultrasonic transducer io is attached to the processing tank 4, and a window for receiving light is opened in the processing tank 4, and an ultraviolet light reception monitor 11 is attached thereto.

In the firefly configuration as described above, water to be treated such as pool water is introduced into the treatment tank 4 from the water supply port, and is sterilized by being irradiated with ultraviolet light while rising through the treatment tank 4 along the ultraviolet lamp 2. Ru. The sterilized water to be treated is discharged from a drain provided at the top of the treatment tank 4.

During the sterilization process, water scale, iron, manganese, etc. that adhere to the inner wall of the processing tank 4 and the surface of the protection tube 3 are removed by operating the ultrasonic vibrator 10 at regular intervals to vibrate the processing tank 4. In this invention, the upper gland nut 5a to which the drainage pipe of the water to be treated is connected and the lower part to which the water supply pipe for the water to be treated is connected is prevented. Since the gland nut 5b has rubber packings 6, . The vibrations are not transmitted to the drainage pipe and the water supply pipe through the upper gland nut 5a and lower gland nut 5b, and only the processing tank 4 vibrates, thereby preventing the adhesion of water scale, etc. to the inner wall of the processing tank 4 and the surface of the protection tube 3. effectively prevented.

In this embodiment, the ultraviolet ray receiving monitor 11 monitors whether the amount of ultraviolet irradiation from the ultraviolet lamp 2 is appropriate. As a result of monitoring by the ultraviolet light receiving monitor 11, if the amount of ultraviolet irradiation is insufficient, it may be due to the life of the ultraviolet lamp 2 or failure of the vibration effect of the ultrasonic vibrator 10, so please check the ultraviolet lamp 2. Appropriate measures should be taken depending on the situation, such as replacing or repairing the malfunctioning part.

(Effects of the Invention) In summary, according to the present invention, as described above, an ultrasonic vibrator is attached to a processing tank in which an ultraviolet lamp whose outer periphery is covered with a protective tube is inserted, and a gland nut is attached to a processing tank or a protective tube. Since the pipe is attached to both ends of the processing tank with packing interposed at the contact part of the pipe, the vibrations are not dispersed to the outside by the ultrasonic vibrator, but are transmitted only to the processing tank, and are transmitted to the inner wall of the processing tank and the protection pipe. The surface is effectively cleaned.

Therefore, according to the present invention, by operating the ultrasonic transducer at regular intervals, devitrification of ultraviolet rays can be prevented semi-permanently and the initial sterilizing effect can be maintained. Further, secondary contamination can be prevented after the flow of the water to be treated is stopped.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an ultraviolet sterilizer showing an embodiment of the present invention, FIG. 2 is a partially cutaway side view of the same, and FIG. 3 is a sectional view taken along line III-nr in FIG. . In the figure, l is an ultraviolet sterilizer, 2 is an ultraviolet lamp, 3 is a protection tube, 4 is a processing tank, 5a and 5b are an upper gland nut and a lower gland nut, 6. ... is a rubber packing for vibration absorption, and 1o is an ultrasonic vibrator.

Claims (1)

[Claims] An ultraviolet lamp whose outer periphery is covered with a protective tube is inserted into a treatment tank with both ends open, and gland nuts are attached to both ends of the treatment tank to connect to the water supply pipe or drain pipe of the water to be treated. In the sterilizer, an ultrasonic vibrator is attached to the processing tank, and gland nuts are attached to both ends of the processing tank with packing interposed at the contact portion of the processing tank or protection tube. Device.