DE102004033247A1 - Compact, inexpensive apparatus for UV irradiation of liquids, especially for sterilizing drinking water, comprising UV-burner fixed in elongated housing through which the liquid flows - Google Patents

Abstract

In apparatus for treating water or other liquids by UV irradiation, with an irradiation unit (20) including at least one UV-burner (24), the UV-burner is fixed in an elongated housing through which the liquid to be irradiated flows.

Description

The The invention relates to a device for the treatment of water or other liquids, with an irradiation unit for irradiating the liquid with ultraviolet Light (UV light), wherein the irradiation unit at least one UV burner has. Preferably, it is about the preparation of Water in the broadest sense, especially for the sterilization of water from drinking water supplies on ships, in hotels, in private households or in conjunction with other smaller collection points.

Basically known is the sterilization of water by UV light. This technique is used so far only in industrial plants. Smaller, cheaper devices this or similar Type should be provided by the invention.

The inventive device is characterized in that the UV burner in an elongated casing inserted, which is flowed through by the liquid to be irradiated. Preferably, the housing tubular shaped. The UV burner can as a unit consisting of lamp, wrapping and Connection cable, be formed.

advantageously, shows the case a tube on, in the at least partially the particular rod-shaped UV burner plugged. The tube can for example be made of transparent or at least translucent Material, in particular be made of polycarbonate. The function The UV burner is easily visually controllable. Is possible also a UV-inhibiting coating or use one the UV radiation at least steaming Material for the Tube or the housing.

advantageously, is the case closed at one end by a removable lid. This facilitates the maintenance of the device. The lid can have a corresponding thread otherwise be connected with the housing with inserted seal. Prefers is an internal thread in the lid and an external thread on the housing, moreover, in particular at one end of the tube. The lid is preferably at least partially made of steel. The aim is a compressive strength of more than 20 bar, in particular at least 50 bar.

advantageously, is the case closed at one end by a lid, which has a connection for the Ingress or exit of the liquid has. This also facilitates the maintenance and manufacture of the device. The lid can be fitted with a fitting for a hose or a pipe be provided.

To Another idea of the invention, the housing on a End of a lid to be closed, with the lid inside with a support element for the UV burner is provided. The device can also be used for mobile Use be provided in a somewhat harsher environment. An additional support The UV burner can have an advantageous effect. Preferably the UV burner is at least two opposite each other Pages supported or held. The support element For example, takes one end of the UV burner cupped or claw-like on and can be made of elastic, damping material be made, such as a suitable plastic.

advantageously, is on the case a holding member for arranged the UV burner, wherein the retaining member separable from the housing is. In this case, the retaining member with the aforementioned support element for holding or supporting of the UV burner. Preferably, the holding member is sleeve-shaped, with an external thread to Screw into the housing. At the same time, the retainer on the inside absorbs the UV burner.

To Another idea of the invention, the housing a Connection for have the entry or exit of the liquid. This connection corresponds to the connection mentioned above in the lid. One of the connections is used as admission for the liquid and the other one as the outlet opening.

advantageously, is the connection (in the housing) a recording piece associated with the receiving piece with the housing Furthermore connected is. Overall, then, the housing consists of the aforementioned Tube, the lid at one end of the tube and the recording piece at the other end of the tube. The recording piece is preferably with the tube bonded by gluing or glued into the tube and can, for example from colored Polycarbonate exist.

According to a further aspect of the invention, the UV burner is held in the receiving piece. Specifically, the sleeve-shaped receiving piece is inserted with a part of its length in the tube. The retainer with the UV burner is then held in the receiving piece. For the passage of the UV burner, the receiving piece preferably has a bore corresponding to the diameter of the UV burner. In the receiving piece a receiving insert is held as a holding member, which has a passage for the connecting cable. The receiving insert is also sleeve-shaped with an external thread and screwed into a corresponding internal thread of the receiving piece. A circumferential seal is provided around the UV burner and exactly in the area between the receiving piece and recording insert.

To Another idea of the invention is at least one filter unit provided that over a line is connected to the irradiation unit. The structure the filter unit can correspond to the irradiation unit westbound. The filter unit stops Suspended matter back and is preferably the irradiation unit in the flow direction of liquid downstream.

To Another idea of the invention is at least one descaling unit provided that over a line with the filter unit or the irradiation unit connected is. The descaling unit is preferably also largely constructed as the filter unit or irradiation unit. Preferably is the filter unit of the irradiation unit and in particular also the descaling unit in the flow direction downstream. Possible are but also other orders and orders of the three mentioned Units.

Preferably The two or three units are arranged side by side with each other opposite Long sides. Preferably, a holder of each unit by means of a plastic clamp, the housing near the transition between tube and spigot includes.

advantageous embodiments The invention will be explained in more detail with reference to drawings. It demonstrate:

1 a cross section through an irradiation unit along the line AA in 2 .

2 the irradiation unit in the side view,

3 the irradiation unit in an end view,

4 the irradiation unit in an exploded view (exploded view),

5 a device according to the invention with a combination of irradiation unit, filter unit and descaling unit,

6 a side view of the irradiation unit according to 5 .

7 a perspective view of the device according to 5 .

8th a longitudinal section through the filter unit of 5 and 7 , see also section line BB in 9 .

9 a side view of the filter unit according to 8th .

10 a view of the front side of the filter unit according to 9 .

11 an exploded view (exploded view) of the filter unit according to 9 ,

It is first referred to the 1 to 4 , As part of a device according to the invention is an irradiation unit 20 intended for the sterilization of water. Components of this unit are a housing consisting of receiving piece 21 , translucent tube 22 and lid 23 , as well as a UV burner 24 ,

The UV burner 24 is rod-shaped with a correspondingly shaped UV lamp 25 (only in 1 and only dashed lines), a tubular rod cover 26 and an electrical connection cable 27 , The UV burner can be handled with the parts mentioned as a unit and in the housing of the irradiation unit 20 usable and interchangeable. To achieve a simplified representation is in 4 the connection cable 27 not shown.

The tube 22 extends parallel to the UV burner 24 and is on one side by the lid 23 closed and in particular made of colorless, transparent polycarbonate. The wall thickness of the tube 22 is dimensioned for a pressure of more than 50 bar, but at least for more than 20 bar.

At one end is the tube 22 through the lid 23 locked. This has a cover ring 28 made of steel and a lid insert 29 made of plastic or another material. The lid ring 28 extends with part of its axial length over the open end of the tube 22 , The tube 22 is provided in this area with an external thread, according to the cover ring 28 with an internal thread. In 1 is this threaded connection with the numeral 30 designated. The lid ring 28 has a stepped inner diameter with a widest diameter in the area of the threaded connection 30 and a narrowing 31 at its opposite end.

The lid insert provided with a central opening 29 is partially in the tube 22 used and partially in the cover ring 28 held. Between lid insert 29 and cover ring 18 is a circumferential groove 32 formed by a seal 33 is filled. The tube 22 has about the same diameter as the seal 33 and extends with its wall to the seal 33 approach. The seal 33 seals on the one hand between the tube 22 and cover ring 28 and on the other hand, between cover ring 28 and lid insert 29 from.

In the lid insert 29 held is a support element 34 for the UV burner 24 , The latter extends in the tube 22 not quite up to the lid insert 29 , The remaining distance is bridged by the support element 34 so that the UV burner 24 is secured in this area against axial (at least in one direction) and transverse axial movements.

The support element 34 consists of an annular base 35 and three outgoing therefrom in the axial direction support arms 36 , each having the same distances from each other. The support element 34 is preferably made of an elastic or resilient material to compensate for installation tolerances and to dampen shocks can.

The lid ring 28 sits above the lid insert 29 like a throw-over, holding it with an inward edge of the narrowing 31 , To secure this position is the lid insert 29 provided with a fuse that has a locking lever 37 which exterior of the lid insert 29 is bolted and with part of its length outside on the lid ring 28 to come to rest, see 2 ,

The support element 34 opposite is the lid insert 29 with a connector 38 provided for the passage of the water. To the connector 38 connectable are a pipe or a pipe. The pierced connector 38 is in the lid insert 29 screwed or glued (not shown in detail).

The recording piece 21 has (also) a fitting 39 which, however, transversely in a correspondingly sized circumferential wall 40 of the receiving piece 21 screwed or glued. Preferably, the water flows through the cover-side connector 38 in the irradiation unit 20 in and step over the (other) connector 39 out again. The water inevitably has to be on the UV burner 24 to flow along.

The recording piece 21 is sleeve-shaped with a nearly central cross-sectional constriction 41 into which the UV burner 24 is inserted with one end. In one of the tubes 22 remote area of the receiving piece 21 with respect to the narrowing 41 extended cross-section 42 is a recording mission 43 used. This is provided with an external thread and in an internal thread of the enlarged cross-section 42 held. The threaded connection is in 1 with the numeral 44 designated.

Related to the irradiation unit 20 Overall, the UV burner is inside of the recording insert 43 at. For this purpose, the recording insert 43 one of a wraparound collar 45 limited depression 46 on. The Bund 45 has approximately the same internal cross-section as the constriction 41 ,

At the narrowing 41 is the federal government 45 opposite a paragraph 47 formed, on which a circumferential seal 48 is present between the paragraph 47 and the federal government 45 is held. The seal 48 seals between UV burners 24 and recording piece 21 on the one hand and between recording use 43 and UV burners 24 on the other hand.

The recording insert 43 has axially in the middle a bore 49 on, for the passage of the connection cable 27 , A cable sleeve 50 protects this from the recording insert 43 emerging connection cable 27 and is in the recording mission 43 screwed or glued.

The tube 22 extends with a short portion of its length over a portion of the wall 40 and is connected to this example by gluing or welding or other means pressure resistant.

Maintenance or cleaning of the irradiation unit is easily possible by (after draining the liquid) removing the cover ring 28 from the tube 22 , After that is the interior of the tube 22 accessible.

Replacement of the UV burner is possible by loosening the recording insert 43 from the recording piece 21 , The recording insert 43 is after that with the UV burner 24 from the recording piece 21 pulled out.

In the device according to 5 are next to the effective for disinfecting the water irradiation unit 20 a filter unit 52 and a descaling unit 53 arranged. All three units 20 . 52 . 53 have the same basic structure with cover ring 28 , Tube 22 and recording piece 21 as well as with the recording insert 43 , see also 11 ,

In the filter unit 52 is only the recording application 43 without hole for passage for a connection cable formed because no electrical connection is provided. Also available are the two seals 33 . 48 and the fittings 38 . 39 as well as the lid insert 29 , In the latter is inserted with one end a filter cartridge 54 , Its other end is with a head piece 55 provided, which in the recording piece 21 in unspecified ge supported manner is supported.

The descaling unit 53 is the same structure as the filter unit 52 , A decalcifying insert 56 is in 5 recognizable. Its storage within the descaling unit is not shown in detail.

The three units 20 . 52 . 53 are arranged with their longitudinal sides parallel next to each other in a common plane and by a two-piece clamp 57 held on a cross member, not shown. The clamps are each composed of two identical parts or half shells.

The water to be purified flows longitudinally in the area of the lid 23 in the irradiation unit 20 into it, passes over the sideways-directed connection (connecting piece 39 ) to the filter unit 52 and enters this through the corresponding corresponding connector 39 one. Between the fittings 39 is a short straight lead 58 intended. In the filter insert 54 suspended particles are retained. The thus purified water passes through the fitting 38 the filter unit 52 off and passes over a U-shaped line 59 to the connection piece 38 the descaling unit 53 , From the latter, the purified and decalcified water passes over the fitting 39 off and passes through a subsequent line 60 in a not shown in detail line network or to a connected consumer.

20

irradiation unit

21

spigot

22

tube

23

cover

24

UV torch

25

UV lamp

26

cover

27

connection cable

28

bezel

29

lid insert

30

threaded connection

31

narrowing

32

groove

33

poetry

34

support element

35

Base

36

support arm

37

locking lever

38

connector

39

connector

40

wall

41

narrowing

42

extended cross-section

43

receiving insert

44

threaded connection

45

Federation

46

deepening

47

paragraph

48

poetry

49

drilling

50

cable sleeve

52

filter unit

53

Entkalkungseinheit

54

filter cartridge

55

headpiece

56

Entkalkungseinsatz

57

clamp

58

just management

59

U-shaped pipe

60

management

Claims (11)

Apparatus for treating water or other liquids, comprising an irradiation unit ( 20 ) for irradiating the liquid with UV light, wherein the irradiation unit ( 20 ) at least one UV burner ( 24 ), characterized in that the UV burner ( 24 ) is in an elongated housing, which is flowed through by the liquid to be irradiated. Device according to claim 1, characterized in that the housing is a tube ( 22 ), in which at least partially the particular rod-shaped UV burner ( 24 ) plugged. Device according to Claim 1 or 2, characterized that the case closed at one end by a removable lid. Apparatus according to claim 1 or one of the further Claims, characterized in that the housing at one end of a Lid is closed, which has a connection for entry or exit the liquid having. Device according to claim 1 or one of the further claims, characterized in that the housing is closed at one end by a cover, the cover being internally provided with a support element (10). 34 ) for the UV burner ( 24 ) is provided. Apparatus according to claim 1 or one of the further Claims, characterized in that the housing is a holding member for the UV burner is arranged, wherein the holding member is separable from the housing. Apparatus according to claim 1 or one of the further Claims, characterized in that the housing has a connection for entry or exit of the liquid having. Apparatus according to claim 7, characterized in that the terminal a receiving piece ( 21 ), wherein the receiving piece ( 21 ) is otherwise connected to the housing. Apparatus according to claim 8, characterized in that the UV burner ( 24 ) in the receiving piece ( 21 ) is held. Device according to claim 1 or one of the further claims, characterized by at least one via a line ( 58 ) with the irradiation unit ( 20 ) connected filter unit ( 52 ). Apparatus according to claim 10, characterized by at least one via a line ( 58 . 59 ) with the filter unit ( 52 ) or the irradiation unit ( 20 ) associated descaling unit ( 53 ).