RU35796U1 - Device for treating a liquid with ultraviolet radiation - Google Patents

Description

2003123915

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DEVICE FOR TREATING A LIQUID BY ULTRA-UV RADIATION

The proposed device relates to the field of liquid processing and can be used for disinfecting liquids using ultraviolet radiation (UV).

Known devices for treating water with UV radiation (PM No. 13209, No. 13210, No. 13211), containing inside the housing one or more ultraviolet lamps enclosed in a case made of a material that is transparent to UV radiation.

The disadvantages of the known devices is the design complexity due to the presence of a large number of elements for supplying the original liquid, as well as their compounds, and the use of these devices for the treatment of chilled liquids leads to increased (unjustified) energy losses.

Closest to the proposed device is the installation for disinfecting water according to the patent of the Russian Federation No. 2182119, C 02 F 1/32, from 01.29.2001, adopted as a prototype.

The prototype device comprises a housing with nozzles for supplying source water and discharging treated water, a UV germicidal lamp with a protective quartz cover and a spiral. At the same time, a reflector is additionally installed in the casing against the inlet pipe, and the spiral is made so that its outer diameter is equal to the inner diameter of the casing and with a step forming a passage section not less than the passage section of the inlet pipe. The spiral is mounted on guides mounted on a removable flange, while the inner diameter of the spiral is 1.5 - 1.7 times the outer diameter of the quartz case.

The disadvantages of the prototype device are the design complexity and large energy losses due to the remoteness of the bactericidal lamp from the processed fluid stream.

    1 s. .; ft

02 F 1/32

On figL and 2 presents a diagram of the proposed device in various projections, where it is indicated:

1- bactericidal lamp;

2- case, transparent to UV radiation;

3-case;

4-spiral channel for fluid flow; 5, 6 covers;

7 - a flange;

8, 9 - gaskets,

10- window with quartz glass;

11- removable part;

12- node for installing the photosensor;

13- tube for removal of wires photo sensor;

14- tube for removing the wires of the bactericidal lamp;

15 - inlet for the source fluid; 16, 17 - pads with electrical contacts;

18- outlet pipe

19 - drain tap (Mayevsky tap);

20- hole for the output of other wires of the lamp and compressed air. The proposed device contains a bactericidal lamp 1, placed in

a cover transparent to UV radiation 2, which is fixed in the housing 3. Housing 3, cover 2 and lamp 1 are located coaxially. The inner surface of the casing 3 is reflective, in addition, it is made in the form of p () spiral channels for the flow of liquid 4. The casing 3 has a window with quartz glass 10, and the casing 3 is provided with a flange 7, which is designed to secure the disinfection device in volume source fluid. The case, transparent to UV radiation 2, can be, for example, a quartz tube. Covers 5 and 6 provide gaskets 8 and 9 to seal the casing 3 with the cover 2 and the bactericidal lamp 1 placed in it. Moreover, most of the casing 3, counting from the flange 7, is in direct contact with the original fluid. In the cover 5 there is a hole for installing the pads 16 with electrical contacts. To fix it on the tabs of the cover 5, it is obstructed; a removable part 11, for example, a nut, is provided. To replace the lamp 1 without depressurizing the device as a whole, it is enough to remove the removable part 11 and remove the lamp 1. In this case, liquid discharge from the device can be omitted. By opening the cover 5, it is possible to remove the cover 2 with the lamp 1. This is done without dismantling the device, but after draining the liquid. The cover 6 is removed only after dismantling the device.

The assembly for installing the photosensor 12 allows you to fix the photosensor (not shown in Figs. 1 and 2) according to the requirements of tightness: the housing 3 has a window with a hermetically inserted quartz glass 10 to expose the photosensor, which is necessary to control the radiation intensity of lamp 1 and the condition of the cover 2.

The tube 13 serves to divert the wires of the photosensor outside the device. Through the tube 14, wires are removed from the electrical contacts of the pads 17. The pads 16 and 17 are provided with electrical contacts for connecting the bactericidal lamp 1 to the lamp control circuit.

The outlet pipe 18 is designed to supply the treated fluid to the consumer. A drain valve 19, (for example, a Mayevsky crane), is used to drain the liquid if it is necessary to dismantle the device or in other circumstances.

An electrical connector (not shown in the drawing) is used to connect the electrical circuit of the processing device to the corresponding control devices. The hole 20 has a dual purpose, it is common for the output of the wires of the lamp 1 from the electrical contacts of the pads 16 and the supply of compressed air to check the tightness of the cavity in which the electrical part of the device is located.

The proposed device operates as follows. In the process of operation of the device inevitably contamination of the cover 2 in the longitudinal direction in the lower part of the cover with a horizontal arrangement of the device. To exclude the passage of fluid along the contaminated area and, therefore, the penetration of untreated fluid from the inlet to the outlet of the device, a spiral channel for liquid flow 4 is used.

The fluid passing through the spiral channel 4 of the inner surface of the housing 3 is directly adjacent to the surface of the cover 2 with a thin layer. The liquid, moving from the inlet (hole 15) to the outlet (pipe 18) in a spiral (channel 4), bends around the surface of the cover 2 by an angle of at least 360 °. This path of fluid passage around the cover 2 with the lamp 1 eliminates its passage along the contaminated longitudinal portion of the cover 1.

The presence of inlets 15 instead of the inlet pipe in the prototype simplifies the device and its installation, because there are no elements for supplying the initial liquid and their connections at the inlet of the device.

Thus, the proposed device in comparison with the prototype can significantly improve the quality of the liquid processing while reducing energy consumption or increase productivity with the same energy consumption. In addition, routine maintenance to replace and maintain a bactericidal lamp and a cover that is transparent to UV radiation, as well as electrical contacts, can be done without resorting to dismantling the device. At the same time, replacing the lamp is possible without depressurizing its camera

The proposed utility model isolates the treated liquid, enclosed in the volume of the device, and the device itself from heat influx from the external environment, which expands its functionality.

Applicant - LLC Advanced Cooling Technologies

Claims (1)

A device for treating a liquid with ultraviolet radiation (UV), comprising a housing with an outlet pipe and a bactericidal lamp with a cover transparent to UV radiation, characterized in that a site for installing a photosensor opposite the window with quartz glass provided in the housing, two tubes for removing wires are introduced photosensor and lamp, two pads with electrical contacts, input holes for the source liquid, a common hole for the output of other wires of the lamp and compressed air supply, a drain valve, as well as two housing covers, p When in use, the inner surface of the housing is reflective with n (n≥1) helical channels for liquid flow, wherein the cover from the outlet pipe provided with a removable part, furthermore with a housing and a lamp cover arranged coaxially with respect to each other.