JPH086558Y2 - Ground nut in UV sterilizer - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION This invention inserts an ultraviolet lamp whose outer periphery is covered with a protective tube into a treatment tank whose both ends are open, and connects both ends of the treatment tank to a water supply pipe or a drain pipe of the water to be treated. The present invention relates to an improvement of a gland nut in an ultraviolet sterilization treatment device to which a gland nut made of synthetic resin is attached.

[0002]

2. Description of the Related Art Conventionally, chemical treatments such as chlorine have been performed for sterilizing pool water, but sterilization treatments by chemicals tend to be refrained from the influence on the human body.

On the other hand, sterilization of water to be treated using ultraviolet rays has a characteristic that, unlike the chemical sterilization method, the sterilization can be effectively performed with almost no effect on the human body, and in various production fields. It's being used.

As a device in which the sterilization method using ultraviolet rays is most efficiently performed, an ultraviolet lamp whose outer periphery is covered with a protective tube is inserted into a processing tank whose both ends are open, and both ends of the processing tank are treated. An ultraviolet sterilization treatment device equipped with a gland nut connected to a water supply pipe or a drain pipe of water can be mentioned.

[0005]

[Problems to be solved by the invention] In this device, the ground nut is processed and molded using polyacetal resin (trade name Iupital: manufactured by Mitsubishi Gas Chemical Co., Inc.), which has excellent weather resistance, chemical resistance, and moldability. Have been used.

[0006] This resin is excellent in weather resistance and chemical resistance and is suitable for being used outdoors or in a place exposed to ultraviolet rays, but in the case where pool water is sterilized by the above-mentioned ultraviolet sterilizer. In addition, the inner wall surface of the gland nut into which the ultraviolet lamp is inserted is not only exposed to strong ultraviolet rays, but also in the water to be treated containing a sterilizing agent such as chlorine, it is not exposed to radicalized chlorine generated by ultraviolet irradiation. Since it was exposed, it deteriorated in a very short period of time, and only the gland nut had to be replaced in a short period of time.

[0007]

In view of the above situation, the present invention inserts an ultraviolet lamp whose outer periphery is covered with a protective tube into a treatment tank whose both ends are open, and treats treated water at both ends of the treatment tank. In a UV sterilization device equipped with a synthetic resin ground nut connected to the water supply pipe or the drain pipe, the cylinder of the UV resistant material is fitted to the inner wall surface of the ground nut into which the UV lamp is inserted. It is the one.

Here, as the material of the ultraviolet ray resistant material for forming the cylinder, titanium-stainless steel, aluminum-Teflon,
Examples thereof include fluororubber.

[0009]

In other words, according to the present invention, since the cylinder of the UV resistant material is fitted to the inner wall surface of the synthetic resin gland nut into which the UV lamp is inserted, it is protected from strong UV rays or radicals and deteriorates. Can be prevented.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the illustrated embodiments. 1 is an ultraviolet sterilization treatment apparatus constructed by mounting the gland nut of the present invention, and 2 is a protective tube such as a quartz tube on the outer circumference. An ultraviolet lamp covered with 3; 4 is a cylindrical processing tank made of stainless steel with an open upper end and a lower end;
Reference numerals 5b and 5b denote an upper gland nut and a lower gland nut made of synthetic resin, which are mounted on the upper and lower ends of the processing tank 4.

As shown in FIG. 2, the ground nuts 5a and 5b are fitted with a titanium-stainless steel cylinder 7 on the inner wall surface 6 into which the end of the ultraviolet lamp 2 is inserted, and further, the upper end of the processing tank 4 and A ring-shaped rubber packing 8 is fitted to the mounting portion at the lower end.

The upper gland nut 5a and the lower gland nut 5b are attached to the upper and lower ends of the processing tank 4 with a rubber packing 8 interposed at the contact portion with the processing tank 4 and the protective tube 3, and further around the processing tank 4. Provided stanchions 9,
By inserting the end portion of ... into the upper gland nut 5a and the lower gland nut 5b and tightening the nut, the processing tank 4 and the protective tube 3 of the ultraviolet lamp 2 are sandwiched between the upper gland nut 5a and the lower gland nut 5b. Fix it.

The drain port 10 of the upper gland nut 5a
The drainage pipe is connected to and the water supply pipe is connected to the water supply port 11 of the lower ground nut 5b.

In the above structure, the water to be treated such as pool water is introduced into the treatment tank 4 through the water supply port 11 and is irradiated with ultraviolet rays while rising along the ultraviolet lamp 2 in the treatment tank 4. Sterilization is performed.

The water to be treated that has been sterilized is discharged from a drain port 10 provided at the upper part of the treatment tank 4.

During the sterilization process, the inner wall surface 6 of the ground nut into which the end of the ultraviolet lamp 2 is inserted is exposed to strong ultraviolet rays and radicalized chlorine generated during the sterilization process. However, in this invention, the inner wall surface 6
Since the cylinder 7 made of titanium-stainless steel is fitted in, it is possible to prevent deterioration of the inner wall surface 6.

[0017]

In summary, according to the present invention, the inner wall surface of the synthetic resin gland nut, which is exposed to strong UV rays and radicals during the UV sterilization process, is protected by the cylinder. It can be postponed.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view of an ultraviolet sterilization apparatus equipped with a gland nut according to the present invention.

FIG. 2 is an exploded perspective view of the gland nut of the above.

[Explanation of symbols]

 1 is an ultraviolet sterilizer 2 is an ultraviolet lamp 3 is a protective tube 4 is a cylindrical processing tank 5a and 5b is an upper gland nut and a lower gland nut 6 is an inner wall surface of the gland nut 7 is a cylinder 8 is a ring-shaped rubber packing 9 Is column 10 is drain port 11 is water inlet

Claims (1)

[Scope of utility model registration request] 1. A synthetic resin made by inserting an ultraviolet lamp whose outer periphery is covered with a protective tube into a treatment tank whose both ends are open and connecting a water supply pipe or a drain pipe of the treated water to both ends of the treatment tank. A ground nut for an ultraviolet sterilization apparatus, wherein a cylinder made of an ultraviolet resistant material is fitted to an inner wall surface into which the ultraviolet lamp is inserted.