JPH03242286A - Ultraviolet ray sterilizing device for flowing water - Google Patents

Abstract

PURPOSE:To allow the irradiation of fluid to be sterilized with UV rays effectively for a sterilization treatment without shorting the fluid in a container by providing a flow regulating plate for whirling the water to be sterilized around a UV lamp. CONSTITUTION:Partition plates 6 are disposed in parallel with each other perpendicularly to the longitudinal direction of the UV lamp 3. The respective partition plates 6 are provided with plural holes 6a. Further, baffle plates 7 are disposed perpendicularly between the respective partition plates and the holes 6a are so provided as to be opposed from each other via the baffle plates. The flow regulating plate 8 is provided around the UV lamp 3 in order to whirl and run the fluid to be sterilized around the UV lamp 3 so as not to short circuit during flow in the device in such a manner; therefore, the compact UV sterilizing device is obtd.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an ultraviolet sterilizer that sterilizes drinking water using an ultraviolet lamp, and particularly relates to a water sterilizer equipped with a rectifying plate for controlling the flow of a fluid to be sterilized. This relates to a sterilizer.

(Prior Art) Conventionally, some ultraviolet water sterilization devices use a high pressure lamp, a medium pressure lamp, a low pressure lamp, or the like as an ultraviolet lamp. Those using high-pressure lamps and medium-pressure lamps can increase the output of ultraviolet rays, so they can sterilize large volumes of fluid, but they require cooling because the lamps are large and the temperature of the lamps is high. Therefore, there was a drawback that the device became large. On the other hand, devices using low-pressure lamps do not need to cool the lamps, so they can be made more compact, but they have the disadvantage that their low output makes it difficult to sterilize large volumes of fluid.

The reason why it is difficult to sterilize large volumes of fluid with low-pressure lamps is that the irradiation time must be longer due to the lower output, so containers with larger cross-sectional areas must be used. This is because in the case of a large container, the necessary irradiation time cannot be obtained because the fluid flows through the container in a short circuit.

(Problems to be Solved by the Invention) The present invention was proposed in order to improve the above-mentioned drawbacks, and its purpose is to prevent the fluid to be sterilized from short-circuiting within the container, and to effectively sterilize the fluid by applying ultraviolet rays to the fluid. The object of the present invention is to provide a device that can be irradiated with light.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a sterilizer having an ultraviolet lamp, in which the ultraviolet lamp is arranged in the center of a cylindrical container, and the area around the ultraviolet lamp is sterilized. The gist of the invention is an ultraviolet water sterilizer characterized by being equipped with a rectifying plate for swirling water.

(Function) With the above configuration, the fluid to be sterilized is not short-circuited and does not flow within the device, so that the fluid can be effectively irradiated with ultraviolet rays. This allows the ultraviolet sterilizer to be made more compact.

(Example) Next, an example of the present invention will be described. It should be noted that the embodiments are merely illustrative, and it goes without saying that various changes and improvements can be made without departing from the spirit of the present invention.

FIG. 1 shows a first embodiment of the present invention, and FIG. 2 shows a second embodiment of the present invention.
In figure 0 showing an embodiment of the invention, 1 is a body, 2 is a lid, and 3
4 is an ultraviolet lamp, 4 is an inlet, 5 is an outlet, 6 is a partition plate, 7 is a baffle plate, and 8 is a spiral rectifier plate.

In FIG. 1, the partition plates 6 are arranged in parallel to each other perpendicularly to the length direction of the ultraviolet lamp 3, and each partition plate is provided with a plurality of holes 6a. Further, between each partition plate, in the case shown in the figure, a baffle plate 7 is arranged perpendicularly to the partition plate, and the holes 6a are provided in opposite directions with the baffle plate interposed therebetween (as a border). .

FIG. 2 shows a case where the current plate 8 is arranged in a spiral shape.

Next, to explain the operation, drinking water is sent into the device from the inlet 4, and is sterilized by swirling around the ultraviolet lamp 3 multiple times using a partition plate and a baffle plate or a spiral rectifying plate. Afterwards, it is supplied from the outlet 5.

Using the ultraviolet sterilizer with the above-mentioned rectifier and the ultraviolet sterilizer without the rectifier, sterilization was carried out by passing water containing Bacillus subtilis and Bacillus solarium at the same time as the ultraviolet lamp was turned on. Table 1 shows the results of evaluating the sterilization rate by counting the number of bacteria in the sterilized water collected from the outlet 5 every 10 seconds using the agar plate method.

From the results in Table 1, it can be seen that the sterilization rate is good by providing a current plate.

(Effects of the Invention) As described above, the present invention provides a rectifying plate for rotating the fluid to be sterilized around the UV lamp so that the fluid to be sterilized does not flow in the device due to a short circuit. By providing the ultraviolet rays around the periphery, the fluid is irradiated with ultraviolet rays for an effective period of time for sterilization, which has the effect that the ultraviolet sterilizer can be made more compact.

[Brief explanation of drawings]

FIG. 1 shows a first embodiment of the ultraviolet water sterilization device of the present invention,
FIG. 2 shows a second embodiment of the invention. 1... Body 2... Lid 3... Ultraviolet lamp 4... Inlet 5... Outlet 6... Partition plate 6a... Hole 7... Baffle plate 8... Spiral Shape rectifying plate - body 2 - body 1

Claims (3)

[Claims] (1) A sterilizer equipped with an ultraviolet lamp, characterized in that the ultraviolet lamp is arranged in the center of a cylindrical container, and a rectifying plate is provided to circulate the water to be sterilized around the ultraviolet lamp. Running water sterilizer. (2) The current plate includes a plurality of partition plates having holes in some of them;
It is composed of a plurality of baffle plates, the partition plates are arranged vertically in parallel in the length direction of the ultraviolet lamp, and the positions of the holes provided in the partition plates are arranged so as to be shifted in the circumferential direction. 2. The ultraviolet running water sterilizer according to claim 1, wherein the baffle plates provided between the partition plates are arranged such that the holes of the partition plates are opposite to each other across the baffle plate. (3) The ultraviolet running water sterilizer according to claim 1, wherein the rectifying plate is a partition plate provided in a spiral shape around the ultraviolet lamp.