RU2109690C1 - Apparatus for photolytic ozonization of water - Google Patents

Abstract

FIELD: water treatment. SUBSTANCE: apparatus comprises casing 1, contact chamber 2, outlet pipe 3 for discharging treated water, ultraviolet lamp 4 enclosed in shell 5 made of material transparent for ultraviolet radiation, inlet pipe 6 for water supply and device 7 for dispersing ozone-air mixture. Ultraviolet lamp 4 is arranged coaxially with casing 1, while dispersing device 7 is disposed below ultraviolet lamp 4. Openings 8 are formed in wall of contact chamber 2 for admitting into it water to be ozonized. Ejector 9 is interposed between ultraviolet lamp 4 and dispersing device 7, coaxially to them. Ejector 9 has outlet opening 10 with diameter smaller than that shell 5 of ultraviolet lamp 4. Admission openings 8 in contact chamber 2 wall are positioned at such a level as is limited by height of ejector 9. EFFECT: high quality of thus-purified water. 1 dwg

Description

 The invention relates to water purification, in particular, to devices for its photolytic ozonation for the purpose of purification from organic contaminants and sterilization and can be used in utilities, medicine, food industry, as well as in transport.

 Known bactericidal apparatus containing a vertical cylindrical chamber with nozzles for supplying and discharging water, a bactericidal lamp of ultraviolet radiation and a protective quartz case mounted coaxially in the cavity of the chamber; an ejector connected to a pipe for supplying water, and two tubes installed in an annular cavity between the lamp and the cover, one of which is connected to the atmosphere, and the other to the vacuum cavity of the ejector. When the apparatus is operating in the airspace between the lamp and the cover, ozone is formed, which is sucked into the ejector through the tube and mixed with the water treated in the apparatus [1].

 The disadvantages of the known apparatus are the complexity of its design due to the presence of an ejector and tubes lowered into the case, as well as the low quality of water treatment due to the fact that ozone acts on the water after processing it with UV rays.

 The closest in technical essence and the achieved result is a device for photolytic ozonation of water, comprising a housing with a contact chamber, a nozzle for discharging waste water, an ultraviolet lamp in a case made of a material transparent to ultraviolet radiation, placed coaxially with the housing, a supply fitting and a disperser of ozone-air mixture located below the ultraviolet lamp (prototype) [2].

 A disadvantage of the known device is the low quality of water purification and, accordingly, insufficiently high coefficient of ozone use due to the fact that the layers of a stream of a water-ozone-air mixture flowing around an ultraviolet lamp and located in the region of the walls of the contact chamber housing, that is, at the greatest distance from a working ultraviolet lamp are exposed to less intensive irradiation, which implies an insufficiently high quality of water purification in this area of the contact chamber.

 The aim of the invention is to create a new device for photolytic ozonation of water with high quality treatment.

 This goal is achieved by the fact that in the device for photolytic ozonation of water, including a housing with a contact chamber, a nozzle for discharging waste water, an ultraviolet lamp in a case made of a material transparent to ultraviolet radiation, placed coaxially with the housing, a supply fitting and a disperser of ozone-air mixture located below the ultraviolet lamp, according to the invention, openings are made in the wall of the contact chamber for introducing source water into it, between the ultraviolet lamp and the disperser mounted an ejector coaxially to them, the outlet of which is formed with a diameter smaller than the diameter of the ultraviolet lamp with cover, and a contact chamber wall of the hole done at the level limited by the height of an ejector for entering the untreated water into it.

 In such a device, the implementation of the ejector between the ultraviolet lamp and the dispersant, coaxial with them, and having an outlet made with a smaller diameter than the diameter of the ultraviolet lamp with a cover, and also making holes in the wall of the contact chamber at a level limited by the height of the ejector, for input into of the source water determines the flow around the cover of the ultraviolet lamp by the jet formed by the ejector of the water-ozone-air mixture in the zone of the highest intensity of ultraviolet radiation, which provides more sokoe quality of water treatment. In addition, the quality of water purification increases the release from the ozone-air mixture passing in the form of bubbles of a zone of increased intensity of ultraviolet radiation of atomic oxygen, which is a more active element of purification, more increasing its speed than ozone. Such a flow around the zone of the highest intensity of ultraviolet radiation purified by water occurs due to the fact that the jet of the water-ozone-air mixture formed due to the ejector effect has a smaller cross section than an ultraviolet lamp with a cover.

 A comparative analysis of the proposed device for photolytic ozonation of water and the prototype shows that between the ultraviolet lamp and the dispersant, an ejector is mounted coaxially with them, the outlet opening of which is made with a diameter smaller than the diameter of the ultraviolet lamp with a cover, and holes are made at the level in the wall of the contact chamber, limited by the height of the ejector to enter the source water into it.

 Thus, the proposed device for photolytic ozonation of water meets the criteria of the invention of "novelty."

 Comparison of the proposed solution not only with the prototype, but also with other technical solutions in the given technical field allowed to conclude that it clearly does not follow from the prior art and, therefore, meets the criterion of "inventive step".

 The possibility of widespread use of the invention in utilities, medicine, the food industry, as well as in transport provides him with the criterion of "industrial applicability".

 The drawing shows a General view of the device in section.

 A device for photolytic ozonation of water includes a housing 1 with a contact chamber 2, a nozzle 3 for discharging waste water, an ultraviolet lamp 4 in a case 5 made of a material transparent to ultraviolet radiation, placed coaxially with the housing 1, a supply nozzle 6, and an ozone-air mixture dispersant 7 located below the ultraviolet lamp 4, holes 8 are made in the wall of the contact chamber 2 for introducing source water into it, between the ultraviolet lamp 4 and dispersant 7, an ejector 9 is mounted coaxially with it, an outlet 10 of which arranged on a diameter smaller than the diameter of the cover 5 an ultraviolet lamp 4, the opening 8 for introducing water into the contact chamber 2 placed on its wall at a level limited by the height 9 of the ejector.

 When the device is operating, the ultraviolet lamp 4 is turned on and the ozone-air mixture in the form of small bubbles is supplied through the nozzle 6 and the dispersant 7 into the cavity of the contact chamber 2, filled through the holes 8 with the source water. The resulting water-ozone-air mixture, passing through the ejector 9, draws in the source water from the housing 1 through the holes 8. The flow of water through the contact chamber 2 is due to the ejector effect and the buoyancy force of the source water column in the housing 1 of the device, constantly acting on the water column located in the contact chamber 2 and filled with an ozone-air mixture. The jet of the water-ozone-air mixture, leaving the ejector 9 through the outlet 11, flows around the cover 5 of the ultraviolet lamp 4 in the zone of the highest intensity of ultraviolet radiation due to the fact that the jet-formed water-ozone-air jet has a cross section smaller than the ultraviolet lamp 4 s case 5. This provides a higher quality water treatment compared to the prototype.

Claims (1)

 A device for photolytic ozonation of water, including a housing with a contact chamber and a pipe for discharging waste water, an ultraviolet lamp in a case made of a material transparent to ultraviolet radiation, placed coaxially with the housing in the contact chamber, a supply nozzle and a dispersant of ozone-air mixture located below the ultraviolet lamp, characterized the fact that it is equipped with an ejector located between the ultraviolet lamp and the dispersant, coaxial with them and completely covering the contact chamber section ry, the outlet of which is made with a diameter smaller than the diameter of an ultraviolet lamp with a cover, and holes are made in the wall of the contact chamber at a level limited by the height of the ejector to enter the source water into it.