JPS59115778A - Preventive method for contamination at fluid terminal - Google Patents

Abstract

PURPOSE:To provide a titled device which sterilizes effectively potable water in particular near the outlet thereof by inserting a UV lamp in the spiral part of a liquid outflow pipe formed spirally for a prescribed length and disposing the outflow port of the outflow pipe in the position where UV light is irradiated. CONSTITUTION:A UV lamp 2 is lighted at all times to irradiate UV light through a spiral outflow pipe 1 to the inside thereof thereby sterilizing the inside. The light from the lamp 2 is also irradiated at all times to an outflow port 3 at the same instant as above and therefore the sterilization effect is acted at all times on the outside surface thereof, whereby the inside of the pipe 1 is maintained always in a germ-free stage. The bacteria in potable water is immediately sterilized in the case of supplying the potable water in the pipe 1 as the UV light is irradiated thereto from the lamp 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluid end contamination prevention device particularly suitable for use in a drinking water (cold water) vending machine.

Especially in vending machines that sell cold drinking water, heat sterilization methods cannot be used for the running water, so it is extremely difficult to sterilize bacteria if they get mixed into the drinking water. be.

Especially in the outflow pipe near the outlet of drinking water, there is a large degree of direct contact with the outside air, and the drinking water flows out only intermittently, so bacteria often adhere to the outlet of the outflow pipe. It is conceivable that when drinking water is sold, bacteria attached to the drinking water may be mixed into the product, that is, the pot.

In view of these points, the present invention effectively sterilizes such drinking water near the outlet thereof, and also constantly sterilizes the vicinity of the outlet of the drinking water to prevent any bacteria from being mixed in when the drinking water is sold. This has been taken into consideration to ensure that this does not happen.

An example of the device according to the present invention will be described below with reference to the drawings. In the present invention, a fluid outflow pipe (1) is formed in a spiral shape over a predetermined length, and the spiral portion of this outflow pipe (1) A lamp (2) is inserted therein, and the tip of the outflow tube ill, that is, the outflow port (3), is placed at a position where the light from the lamp (2) is irradiated. (4) is a reflecting plate.

The lamp (2) is one that emits ultraviolet rays containing wavelengths that have a sterilizing effect, and in the example shown, a bent U-shaped tube is used, but of course it can be used in a straight line. Lamps can also be used.

In this case, the tip of the spiral outlet pipe 11), that is, the outlet (3)
It is better to position the lamp directly below the lamp (2).

Furthermore, in the present invention, this outflow pipe (1) is constructed of a material that is transparent to ultraviolet rays.

In the illustrated example, the outflow pipe (1) is spirally formed in the vertical direction, but it may be formed to extend in the horizontal direction. In this case, the lamp (2) is formed inside the outflow pipe (1). It will be inserted horizontally.

According to such a configuration, the current rung (2) is always turned on (thereby, ultraviolet rays from this rung are emitted from the outflow pipe 11).
At the same time, the inside of the lamp is irradiated and the sterilization effect is carried out through the lamp (2).
), the outer surface of the outflow pipe fil is constantly sterilized, and the inside of the outflow pipe fil is always sterile. Moreover, when drinking water is supplied to this, since it is irradiated by the lamp (2), bacteria in the drinking water are also immediately sterilized. Therefore, even if drinking water is intermittently taken out from the outflow pipe (1), contamination of bacteria into the drinking water is avoided.

Further, according to the present invention, since the outflow pipe fil is formed in a spiral shape, the time that the drinking water passing through the inside is irradiated with ultraviolet rays is extremely long, and therefore, it is difficult to expect a sterilizing effect. It is possible. Furthermore, by surrounding the entire area with a reflector plate (4) as shown in the figure, ultraviolet rays from the lamp (2) can be more effectively irradiated into the outflow pipe fil, resulting in even more effective sterilization. It is something that can perform an action.

Therefore, the device according to the present invention has the characteristic that water can be refilled in an extremely hygienic manner by installing the device in particular at the end of a vending machine that sells cold water, or by using it at a water outlet in a dental clinic. be.

[Brief explanation of the drawing]

The figure is a sectional view showing an example of the device according to the present invention. ill is a spirally formed outflow tube, and (2) is an ultraviolet light emitting lamp.

Claims (1)

[Claims] A liquid outflow pipe is spirally formed over a predetermined length and made of an ultraviolet-transparent material so as to substantially include the outflow port, and a lamp that emits ultraviolet light is disposed within the spiral portion of the outflow pipe, A fluid end contamination prevention device, characterized in that the outlet of the outflow pipe is located at a position where it is irradiated with ultraviolet rays from the lamp.