RU207845U1 - DRINKING WATER DISPENSER WITH UV DISINFECTION DEVICE - Google Patents

Abstract

The drinking water dispenser contains a housing (10) and an inlet pipeline (18) installed in the housing (10) for connecting an external water source, a container for cold water (11) equipped with a cooling device (12) and having a lower part (25) filled with water and the upper part (26), in which, when the container is filled with water, an air cavity is formed, the water inlet (13) connected to the inlet pipeline (18), and the water outlet (14) connected to the outlet pipeline (20), the outlet a tap (21) for dispensing water to the consumer, connected to the outlet pipeline (20), as well as a UV radiation source (17) installed in a cold water tank (11). In this case, the water inlet (13) is made in the form of a vertical tube (27) placed in a cold water tank (11), with an open upper end (29) and a lower end (28) connected to the inlet pipeline (18). The UV source (17) is installed in the upper part of the cold water tank (11), above the open upper end (29) of the vertical tube (27) of the water inlet (13).

Description

Technology area

The utility model relates to drinking water dispensers, and in particular to such dispensers equipped with an ultraviolet (UV) disinfection device.

Prior art

Known is a drinking water dispenser, US6483119 B1, containing a storage tank for water equipped with a cooling device, a bottle receiver for installing an inverted bottle and a UV radiation source placed in a waterproof case and installed in a storage tank for irradiating water in the storage tank. The disadvantage of such a device is the low efficiency of water treatment with UV radiation. The storage tank can hold several liters of water, and for the effective treatment of such a volume of water, a sufficiently large UV radiation power is required, and when even a small additional amount of water enters the storage tank, the entire volume of water must be re-treated.

The closest to the proposed technical solution is a system for pouring treated water, US 6139726 A, containing a storage tank for water equipped with a cooling device, an inlet for supplying water to the storage tank from an external source, and a UV lamp installed vertically in the storage tank in this way, to radiate at both the top and bottom of the storage tank. In this case, the inlet for the water supply is installed in such a way that water from the inlet falls on the upper part of the lamp and flows into the container through the lamp.

The disadvantage of this device is a decrease in the efficiency of the UV radiation of the lamp over time due to the deposition of mineral substances contained in the water on the lamp surface. Which requires periodical cleaning of the lamp.

Another disadvantage of this device is the presence in the water tank of places where the lamp radiation does not fall due to the shading of these places by structural elements.

The essence of the utility model

The task of the utility model is to improve the efficiency of disinfection and ease of use of the dispenser. Another task is to ensure the disinfection of the water entering the storage tank and maintain the purity of the water in the storage tank. Another task of the utility model is to maintain the microbiological cleanliness of the airspace in the storage tank.

The technical result is achieved by the fact that the drinking water dispenser contains a body and installed in the body:

inlet pipeline for connecting an external water source,

a container for cold water, equipped with a cooling device and having a lower part filled with water and an upper part in which, when the container is filled with water, an air cavity is formed,

a water inlet connected to the inlet piping, and

a water outlet connected to an outlet pipe,

outlet valve for dispensing water to the consumer, connected to the outlet pipeline, as well as

a UV source installed in a cold water tank. In this case, the inlet for water is made in the form of a vertical tube placed in a container for cold water, with an open upper end and a lower end connected to the inlet pipeline; and the UV source is installed at the top of the cold water tank, above the open top end of the vertical water inlet tube.

Such a water supply ensures that all water entering the container is treated with UV radiation and excludes the possibility of untreated water from an external source entering the container, and also allows UV radiation to be processed both water and air in the container, maintaining microbiological purity inside the container. ...

Desirably, the open end of the vertical tube is located near the surface of the water in the cold water container. Preferably, at a distance of no more than 20 mm from the surface of the water. This placement of the open end of the vertical tube allows the water entering the container to be close to the surface where the exposure to the UV radiation source is maximal.

Preferably, the diameter of the riser is 10 to 50 mm. This tube is wide enough so that the UV source can fully illuminate the inside of the tube.

It is convenient to use one or more LEDs as a source of UV radiation. When using several LEDs as a source of UV radiation, it is possible to arrange them so that some of the LEDs shine inside the tube, and the rest illuminate the inner space of the cold water tank.

Preferably, in order to increase the efficiency of using the radiation from the UV sources, the inner surface of the riser tube has been designed to reflect UV radiation well.

Preferably, the dispenser comprises a control device, and connected to it an inlet valve that regulates the water supply to the cold water tank, and a water level sensor located in the cold water tank, the control device being configured to maintain the water level in the cold water tank between the specified upper and lower values. In this case, it is desirable that the upper water level setpoint is above the open end of the vertical water inlet tube, and the lower water level setpoint is not lower than the open end of the vertical water inlet tube.

Brief Description of Drawings

FIG. 1 schematically shows a variant of the internal structure of the proposed water dispenser.

FIG. 2 shows an embodiment of the water inlet.

Claims (6)

1. A drinking water dispenser with a UV disinfection device capable of being connected to a power supply, comprising a housing and an inlet pipeline installed in the housing for connecting an external water source, a cold water tank equipped with a cooling device and having a lower part and an upper part filled with water, made with the possibility, when the container is filled with water, to form an air cavity, a water inlet connected to the inlet pipeline, and a water outlet connected to the outlet pipeline, an outlet valve for dispensing water to the consumer, connected to the outlet pipeline, as well as a source of UV radiation installed in a cold water tank, characterized in that the water inlet is made in the form of a vertical tube placed in the cold water tank, with an open upper end and a lower end connected to the inlet pipeline; and the UV radiation source is installed in the upper part of the cold water tank above the open upper end of the vertical water inlet tube, while the dispenser further comprises a control device and an inlet valve connected to it, configured to regulate the water supply to the cold water tank, and a water level sensor located in the cold water tank, while the control device is configured to maintain the water level in the cold water tank between the predetermined upper and lower values. 2. The dispenser of claim 1, wherein the open end of the riser is located near the surface of the water in the cold water container. 3. A dispenser according to claim 2, wherein the distance from the open end of the vertical pipe to the water surface does not exceed 20 mm. 4. The dispenser of claim 1, wherein an LED is used as the UV source. 5. The dispenser of claim 4, wherein the inner surface of the vertical tube is reflective to UV radiation. 6. The dispenser of claim 1, wherein the upper water level setpoint is above the open end of the vertical water inlet tube and the lower water level setpoint is not below the open end of the vertical water inlet tube.

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