EP0343162A1 - Device for sterilization of liquid with ultraviolet light - Google Patents
Device for sterilization of liquid with ultraviolet lightInfo
- Publication number
- EP0343162A1 EP0343162A1 EP19870907509 EP87907509A EP0343162A1 EP 0343162 A1 EP0343162 A1 EP 0343162A1 EP 19870907509 EP19870907509 EP 19870907509 EP 87907509 A EP87907509 A EP 87907509A EP 0343162 A1 EP0343162 A1 EP 0343162A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- liquid
- ultraviolet light
- pipe
- inlet pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 27
- 230000001954 sterilising effect Effects 0.000 title claims description 7
- 238000004659 sterilization and disinfection Methods 0.000 title claims description 7
- 230000005855 radiation Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000000172 allergic effect Effects 0.000 description 1
- 208000010668 atopic eczema Diseases 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/10—Ultraviolet radiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/322—Lamp arrangement
- C02F2201/3223—Single elongated lamp located on the central axis of a turbular reactor
Definitions
- the object of the invention is a device for sterilization of liquid with black light, to which device belong a frame an in the frame placed inlet pipe for liquid and a dis ⁇ charge pipe for liquid, as well as an inside the frame placed ultraviolet light lamp, which is arranged on a distance from the walls of the frame and the liquid is arranged to be circulated in the interspace by conduct ⁇ ing it through the inlet pipe inside the frame and through the discharge pipe out.
- the liquids are generally purified by means of using dif ⁇ ferent kinds of chemicals in the water treatment.
- the chemicals cause, however, allergic symptoms and other kinds of detriments to a part of the people.
- H Tar0helial at the chlorination of water plenty of the chlorine re ⁇ main in it, which is poisonous.
- H Tar0helial at the ozone treatment of the water according to investigations H Von0helial is formed, which in its turn may be cancerogenic .
- For the treatment and sterilization of liquid devices have been developed, in which the liquid is circulated in the close neighbourhood of an ultraviolet light lamp, whereby the ultraviolet radiation purifies the liquid.
- the present devices are complicated, difficult to use and expensive.
- the purpose with the invention is to bring about a device for sterilization of liquid with black light, which to its structure is simple and to its production costs more favourable than the known devices..
- the ultraviolet light tube is straight and arranged to extend throughout the whole frame from one end of it to the other .
- the radiation the liquid is subject to uniform on every side.
- the lamp is simple to its structure, favourable in costs, easily changeable and maintained.
- figure 1 presents one application of the device in accord ⁇ ance with the invention for sterilization of liquid with black light in cross—section seen from the side
- figure 2 presents the device in accordance with figure 1 seen from the end.
- the frame 1 into which have been placed the inlet pipe 2 of the liquid and the discharge pipe 3 of the liquid.
- Inside the frame has been placed within a quartz glass tube 7 an ultraviolet light tube 4.
- the quartz glass tube and the ultraviolet light tube are straight tubes and extend from the one end of the frame to the other end.
- figure 1 is presented an intersection of the structure of the device halved, and in the figure is shown the inlet pipe 2 side part of the device.
- the part of the discharge pipe side corresponds to its structure the one presented on the figure and is its mirror image
- the spaces for circulation 5 In the frame on the spot of the inlet pipe and the dis ⁇ charge pipe are formed the spaces for circulation 5 and the frame is designed in such a way, that at the spot of the spaces for circulation the diameter of the frame is essentially greater than at the spot of the frame centre 6.
- the inlet pipe and the discharge pipe are placed ec ⁇ centrically in regard of the frame.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Toxicology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
Le dispositif qui sert à stériliser les liquides à l'aide de lumière ultraviolette, comprend un cadre (1) dans lequel on place une conduite d'admission (2) du liquide et une conduite d'émission (3) du liquide ainsi qu'une lampe à lumière ultraviolette (4). Les dispositifs similaires actuels sont compliqués et difficiles à réparer. Dans le dispositif décrit de la présente invention, des espaces pour la circulation (5) sont ménagés dans le cadre à l'endroit de la conduite d'admission et de la conduite d'émission, le diamètre desdits espaces étant supérieur au diamètre du centre (6) du cadre qui est situé entre eux.The device which is used to sterilize liquids using ultraviolet light, comprises a frame (1) in which is placed an inlet pipe (2) for the liquid and an outlet pipe (3) for the liquid as well as an ultraviolet light lamp (4). Current similar devices are complicated and difficult to repair. In the device described of the present invention, spaces for circulation (5) are provided in the frame at the location of the intake pipe and the emission pipe, the diameter of said spaces being greater than the diameter of the center. (6) of the frame which is located between them.
Description
Device for sterilization of liquid with ultraviolet light
The object of the invention is a device for sterilization of liquid with black light, to which device belong a frame an in the frame placed inlet pipe for liquid and a dis¬ charge pipe for liquid, as well as an inside the frame placed ultraviolet light lamp, which is arranged on a distance from the walls of the frame and the liquid is arranged to be circulated in the interspace by conduct¬ ing it through the inlet pipe inside the frame and through the discharge pipe out.
The liquids are generally purified by means of using dif¬ ferent kinds of chemicals in the water treatment. The chemicals cause, however, allergic symptoms and other kinds of detriments to a part of the people. For instance, at the chlorination of water plenty of the chlorine re¬ main in it, which is poisonous. Correspondingly, at the ozone treatment of the water according to investigations H„0„ is formed, which in its turn may be cancerogenic . For the treatment and sterilization of liquid devices have been developed, in which the liquid is circulated in the close neighbourhood of an ultraviolet light lamp, whereby the ultraviolet radiation purifies the liquid. The present devices are complicated, difficult to use and expensive.
The purpose with the invention is to bring about a device for sterilization of liquid with black light, which to its structure is simple and to its production costs more favourable than the known devices..
The aim of the invention is achieved with a device, which is characterized by that, what has been presented in the patent claims.
In a device in accordance with the invention at the spot of the inlet pipe and the discharge pipe in the frame has been arranged spaces for circulation, the diameter of
which is greater than the diameter of the frame centre situated between them. The interspace is at the frame centre narrower than at the ends of the frame. The flow rate of the incoming liquid is thus higher at the centre, which promotes the efficient mixing of the liquid and its coming in touch with the ultraviolet radiation source, because the effect of the black light becomes weaker the greater the distance from the ultraviolet radiation source is.
In one application of the invention the ultraviolet light tube is straight and arranged to extend throughout the whole frame from one end of it to the other . In this case the radiation the liquid is subject to uniform on every side. Additionally, the lamp is simple to its structure, favourable in costs, easily changeable and maintained.
In the following the invention is explained in detail by referring to the attached drawing, in which figure 1 presents one application of the device in accord¬ ance with the invention for sterilization of liquid with black light in cross—section seen from the side, and figure 2 presents the device in accordance with figure 1 seen from the end.
In the application presented in the figures to the device belong the frame 1 , into which have been placed the inlet pipe 2 of the liquid and the discharge pipe 3 of the liquid. Inside the frame has been placed within a quartz glass tube 7 an ultraviolet light tube 4. The quartz glass tube and the ultraviolet light tube are straight tubes and extend from the one end of the frame to the other end.
In figure 1 is presented an intersection of the structure of the device halved, and in the figure is shown the inlet pipe 2 side part of the device. The part of the discharge pipe side corresponds to its structure the one presented
on the figure and is its mirror image
In the frame on the spot of the inlet pipe and the dis¬ charge pipe are formed the spaces for circulation 5 and the frame is designed in such a way, that at the spot of the spaces for circulation the diameter of the frame is essentially greater than at the spot of the frame centre 6. The inlet pipe and the discharge pipe are placed ec¬ centrically in regard of the frame.
With the eccentric location of the inlet pipe and the discharge pipe the liquid is made to circulate around the ultraviolet light lamp in a screw-formed rotational way. Between the pipes a difference in pressure has been ar- ranged, as a consequence of which the mixing of the liquid is made complete and the effect of the lamp is taken into a maximum use. In addition to the device belong the con¬ nection pieces 8 for connecting of the frame tightly to the quartz glass tube.
The invention is not limited to the presented application, but it can vary within the frames of the patent claims.
Claims
1. Device for sterilization of liquid with black light, to which device belong a frame (1), into the frame placed inlet pipe (2) of the liquid and discharge pipe (3) of the liquid, as well as inside the frame placed ultraviolet light lamp (4), which is arranged at a distance from the walls of the frame and the liquid is arranged to be cir¬ culated in the interspace by conducting it through the inlet pipe inside the frame and through the discharge pipe out, c h a r a c t e r i z e d in, that on the spot in the frame of the inlet pipe and the discharge pipe spaces for circulation (5) have been formed, the diameter of which is greater than the diameter of the frame centre (6) situated between them.
2. Device in accordance with the patent claim 1, c h a r a c t e r i z e d in, that the ultraviolet tube is straight and arranged to extend from the one end of the frame to the other end.
3. Device in accordance with the patent claim 1 or 2, c h a r a c t e r i z e d in, that the inlet pipe and the discharge pipe are arranged eccentrically.
4. Device in accordance with some of the patent claims 1-3, c h a r a c t e r i z e d in, that between the in¬ let pipe and the discharge pipe a difference in pressure is arranged in order to mix the liquid in the interspace.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI864493A FI864493A (en) | 1986-11-05 | 1986-11-05 | ANORDINATION FOR STERILIZATION AV VAETSKA MED UV-LJUS. |
| FI864493 | 1986-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0343162A1 true EP0343162A1 (en) | 1989-11-29 |
Family
ID=8523444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19870907509 Withdrawn EP0343162A1 (en) | 1986-11-05 | 1987-11-05 | Device for sterilization of liquid with ultraviolet light |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0343162A1 (en) |
| FI (1) | FI864493A (en) |
| WO (1) | WO1988003415A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8924331D0 (en) * | 1989-10-28 | 1989-12-13 | Goodson Malcolm | Method and apparatus for water treatment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1200940A (en) * | 1910-10-31 | 1916-10-10 | R U V Company Inc | Apparatus for the treatment of water and other liquids by ultra-violet rays. |
| US2338388A (en) * | 1941-04-04 | 1944-01-04 | Whitman Helen | Irradiating tube |
| DE2327084C3 (en) * | 1973-05-28 | 1982-03-18 | Eisenwerke Fried. Wilh. Düker GmbH & Co, 8782 Karlstadt | Ultraviolet disinfection device |
| DE2818412A1 (en) * | 1978-04-27 | 1979-10-31 | Ihle Ing Gmbh | PROCEDURES FOR DISINFECTING AND / OR DEALGING WATER |
| CA1072716A (en) * | 1978-11-15 | 1980-03-04 | James H. Lewis | Disposable liquid sterilizer unit |
| NO147551C (en) * | 1980-11-10 | 1983-05-04 | Int Farvefabrik As | APPARATUS FOR DISINFECTION OF LIQUIDS. |
-
1986
- 1986-11-05 FI FI864493A patent/FI864493A/en not_active Application Discontinuation
-
1987
- 1987-11-05 WO PCT/FI1987/000149 patent/WO1988003415A1/en not_active Application Discontinuation
- 1987-11-05 EP EP19870907509 patent/EP0343162A1/en not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8803415A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FI864493A (en) | 1988-05-06 |
| FI864493A0 (en) | 1986-11-05 |
| WO1988003415A1 (en) | 1988-05-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19890901 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19900530 |