WO2012006772A1

WO2012006772A1 - Cleaning device for fluid

Info

Publication number: WO2012006772A1
Application number: PCT/CN2010/075117
Authority: WO
Inventors: Markus Koch; Weihao Wang
Original assignee: Vorwerk & Co. Interholding Gmbh
Priority date: 2010-07-13
Filing date: 2010-07-13
Publication date: 2012-01-19

Abstract

A cleaning device (1) for a fluid, e.g. water is disclosed, wherein the fluid flows through a cylindrical cleaning tube (2) while being cleaned by means of irradiation, in particular UV irradiation, wherein further the cleaning tube (2) comprises a bottom area (3) in which a fluid intake (15) is formed, and a top area (9) in which a fluid discharge (16) is formed, and wherein furthermore, within the cleaning tube (2), a wiping device (24) is rotatable about the longitudinal axis (x) of the cleaning tube (2) and provided with wiping elements (25) extending in the axial direction. In order to improve such cleaning device, in particular with respect to the flow-dependent drive of the wiping elements on the device side, it is proposed that the wiping elements (25) are fixedly connected on the bottom side with flow deflection elements (33) extending in the circumferential direction of the cleaning tube (2). The inflowing fluid rotates the wiping elements (25) by flowing through the flow deflection elements (33). In a further solution, it is proposed that over the axial length on the wiping element (25), areas (28) are formed which abut on an inner surface (27) of the cleaning tube (2), and areas (29) are formed which run at a distance to the inner surface (27) of the cleaning tube (2).

Description

CLEANING DEVICE FOR FLUID

The invention relates first to a cleaning device for a fluid, e.g. water, wherein the fluid flows through a cylindrical cleaning tube while being cleaned by means of irradiation, in particular UV irradiation, wherein further the cleaning tube comprises a bottom area in which a fluid intake is formed, and a top area in which a fluid discharge is formed, and wherein furthermore within the cleaning tube, a wiping device rotatable about the longitudinal axis of the cleaning device is provided, the wiping device having wiping elements extending in axial direction.

Cleaning devices of the type in question are known. The same are used in particular for irradiation of fluids, further, in particular of water, e.g. to disinfect the same, further, e.g., to initiate or accelerate, respectively, chemical reactions. For this, in a preferred embodiment, the cleaning tube through which the fluid flows in axial direction, is a quartz glass tube which is substantially closed by means of appropriate connection sections on the bottom side as well as on the top side. Further, the connection sections are formed for inflow or outflow of the fluid, respectively. Here, there is a need to clean the cleaning tubes continuously during the fluid throughput, and further, in particular, to remove any solids which are carried with the fluid and which accumulate on the tube's surface facing the fluid. For this it is known to provide, within the cleaning tube, a rotatable wiping device. The same comprises in axial direction, i.e. in longitudinal extension of the cleaning tube, and further, in the main flow direction of the fluid, wiping elements which extend through the cleaning tube and which slide wiper-like over the dedicated tube surface.

In this context, further wiping devices are known which are rotated by a drive means arranged outside of the cleaning tube. From WO 2006/111396, a development is known for which external drive means are omitted. Here, the wiping device is rotated by means of the fluid flowing into the cleaning device in such a manner that the wiping elements cooperating with the tube surface to be cleaned, create a flow resistance opposing the inflowing fluid, the flow resistance applying a torque on the wiping device, thus causing the rotational movement of the same. The rotational impulse of the fluid flowing through the cleaning tube, which is necessary for this purpose, is achieved by a preferably tangential inflow of the fluid in the bottom area of the cleaning tube, thereby achieving a vortical flow through the same.

In view of the above-described prior art, it is considered as a technical problem of the invention to further improve a cleaning device of the type in question, in particular with respect to the flow-dependent drive of wiping elements on the device side.

This problem is solved first and substantially by the subject matter of claim

1 , wherein it is intended that the wiping elements on the bottom side are firmly connected with flow deflection elements extending in circumferential direction of the cleaning tube, wherein the inflowing fluid rotates the wiping elements by flowing through the flow deflection elements. As a result of the arrangement of flow deflection elements, in the bottom area of the inflowing fluid - viewed in flow direction through the cleaning tube - a rotational impulse is applied to the fluid already flowing into the bottom area before the pressurization of the wiping elements. Accordingly, as a result of this configuration, it is not mandatory to form the wiping elements in such a manner that they oppose the flow flowing helically through the cleaning tube by a flow resistance so that the wiping elements can be formed in a strictly functional way, i.e., limited to their function (wiping the facing tube surface), if applicable. The flow deflection elements, which are formed preferably integrally, and further preferably material-uniform with the wiping elements, act here turbine-like because of the flow of fluid through the same. Further, this proposed configuration provides in an advantageous manner, in particular, structural freedom with respect to the fluid inlet in the bottom area.

Furthermore, the invention relates to a cleaning device according to the features of the preamble of the claim 1 , wherein it is proposed for the solution of the above-described problem that on a wiping element, over the axial length, areas are formed which abut on an inner surface of the cleaning tube, and areas which run at a distance to the inner surface of the cleaning tube. As a result of the proposed configuration, the wiping element, which slides wiper-like over the inner surface of the cleaning tube during operation, does not abut with the full surface over the axial length of the wiping element, further, in particular, over the entire axial extension on a wiping zone abutting on the tube inside, as a result of which, further, the friction resistance between the wiping element and the allocated tube surface to be cleaned is reduced compared to a full-surface contact over the entire axial length. This supports in an advantageous manner the rotational drive of the wiping element as a result of the fluid flowing preferably helically through the cleaning tube. Thus, for example, the wiping element facing the tube surface to be cleaned is provided with radially open-edged recesses which, further preferably, are arranged uniformly distributed over the axial length of the wiping element; alternatively distributed non-uniformly. In a further preferred configuration, such an area running at a distance to the tube surface to be cleaned extends over an axial length which corresponds to the axial length of an area abutting on the surface of the tube. Further preferred, the axial length of a contacting area corresponds to the 1.1 -fold to 2-fold of a non-contact area.

Each of the features of the above-described independent claims 1 and 2 are essential on their own as well as together in any combination, wherein further only individual features of one or more of the independent claims 1 or 2 can be combined. Thus, in a preferred configuration, a cleaning device is provided, the wiping elements of which are firmly connected on the bottom side with flow deflection elements extending in circumferential direction of the cleaning tube, wherein the inflowing fluid, as a result of its flow through the flow deflection elements, rotates the wiping elements, wherein further over the axial length on a wiping element, areas are formed which abut on an inner surface of the cleaning tube, and areas which run at a distance to the inner surface of the cleaning tube.

Further features of the invention are explained below as well as in the description of the figures, often in their preferred allocation to the subject matter of the claim 1 and/or claim 2, or to the features of further claims. However, they can also be essential in an allocation to only individual features of the claim 1 and/or claim 2, or of the respective further claim, or each of them can be independently of importance.

In a preferred configuration, the fluid intake and/or the fluid discharge of the cleaning tube takes place in a plane perpendicular to a longitudinal axis of the cleaning tube. Accordingly, in a preferred configuration, the fluid intake as well as the fluid discharge out of the cleaning device is arranged transverse to the main flow direction through the cleaning tube, further preferred, each of them is aligned in a plane which corresponds to the rotation plane of the fluid in the bottom area and top area, respectively. Thus, it is further preferred that the fluid intake and/or the fluid discharge takes place offset to a center axis of the cleaning tube, and accordingly preferred, not aligned strictly radially to a tube axis. In this connection, a tangential alignment of the fluid intake and/or of the fluid discharge is preferred, and this, further with respect to an inner wall of the cleaning tube, or to an inner wall of the bottom area and top area, respectively, comprising the fluid intake and the fluid discharge, respectively. Accordingly, in such a configuration of the fluid intake, a rotating inflow of the fluid into the bottom area takes place, in which, further preferred, the above-mentioned flow deflection elements are provided. Also in this connection is preferably provided that the fluid intake and the fluid discharge are arranged towards the same rotational direction of the fluid. According to this, the fluid flows completely in a spiral or helical alignment through the entire cleaning device. Further preferred, the fluid intake and the fluid discharge extend with respect to a projection onto a plan view of the cleaning device in the same direction, and this further preferred at a space-parallel distance to each other.

In a further preferred configuration, a radiation tube is arranged concentrically to the cleaning tube. Further preferred, the radiation tube, like the cleaning tube also, is formed as a quartz glass tube. The latter receives the UV-irradiation device in such a manner that the fluid flowing through the ring space remaining between the cleaning tube and the irradiation tube can be cleaned by means of UV-irradiation. The wiping elements of the wiping device extend in axial direction in the remaining ring space, i.e., between the outer cleaning tube wall and the inner irradiation tube wall.

In a preferred configuration, these wiping elements act not only on the inner surface of the cleaning tube but at the same time on the outer surface of the irradiation tube. Here, each wiping element is preferably formed in such a manner that it acts on the cleaning tube as well as on the irradiation tube. Alternatively, viewed in circumferential direction, a plurality of wiping elements can be provided, a part of which acts on the inner surface of the cleaning tube, and the other part on the outer surface of the irradiation tube, wherein further all wiping elements are preferably firmly connected with the bottom-side flow deflection elements, virtually forming a unit. Apart from that, firmly connected is to be understood here also as a removable connection, for example, a plug-in connection which in the alignment position, i.e., at arrangement of the wiping elements and the related flow deflection elements in cleaning direction, holds the latter non-removable to each other in such a manner that a rotational drive of the wiping elements takes place by means of the flow deflection elements.

In this connection, it is further preferred that, viewed over the axial length, the wiping elements facing the outer surface of the irradiation tube, form areas abutting on the outer surface of the irradiation tube, and areas running at a distance to the outer surface of the irradiation tube. In a preferred configuration, the arrangement and form of these areas are designed identical to the areas related to the inner surface of the cleaning tube. If a wiping element is formed for acting on the inner surface as well as for acting on the outer surface of the irradiation tube, an advantageous effect is the outcome when, as further preferred, with respect to a transversal plane of the cleaning tube, an area spaced apart from the inner surface of the cleaning tube is allocated to an area of the wiping element abutting on the outer surface of the irradiation tube. Therefore, viewed over the axial length, in the abutting position towards the inner surface of the cleaning tube as well as towards the outer surface of the irradiation tube, the wiping element is provided with recesses offset axially as well as in radial direction. Accordingly, the annular gap which is generated between the irradiation tube and the cleaning tube, and through which the fluid has to flow, is not separated in axial direction by the wiping element. In fact, a flow of the fluid through the areas of the wiping element spaced apart from the respective surfaces of the tubes is allowed, which further whirls up the parts of the fluid (e.g. organic substances) to be irradiated in an advantageous manner. Hereby, the cleaning by means of UV-irradiation is further improved.

In a further preferred configuration, at least two wiping elements are provided circumferentially offset, further preferred with respect to the longitudinal axis of the cleaning tube, in diametrical alignment to each other. It is further preferred here that to the areas of a wiping element abutting on the inner side of the cleaning tube and/or on the outer side of the irradiation tube (active cleaning areas), circumferentially offset areas are allocated on the other wiping element, which areas are running at a radial distance to the inner surface or outer surface, respectively. At an equal axial extension of the abutting areas and the areas spaced apart from the allocated surfaces, and further, in particular, as preferred, in a configuration in which the areas which are spaced apart have a shorter length than the abutting areas, the advantageous effect is thus achieved that as a result of the rotational shifting of the wiping elements, the entire inner surface of the cleaning tube, and the entire outer surface of the irradiation tube, respectively, are completely covered during the course of a 360°-circulation by abutting areas of the wiping elements and hence cleaned. In particular by means of a further preferred axial overlapping of two abutting areas succeeding in circumferential direction, a residual streaking on the surface of the glass body to be cleaned is avoided.

Further preferred, the wiping device comprises a plurality of flow deflection elements running helically to the longitudinal axis of the cleaning tube. As a result of the helical configuration, in addition to the rotational impulse, an impulse in vertical direction is applied to the fluid flowing-in at the bottom side, whereby the inflowing fluid at the same time rotates the appropriately aligned, turbine-blade-like flow deflection elements. Preferably, the flow deflection elements are helically formed in such a manner that severe deflections of the fluid out of the transverse plane are avoided. An advantageous torque is achieved, as further preferred, when two or more flow deflection elements are provided distributed over the circumference, further preferred twenty or less flow deflection elements, further preferred nine to fifteen, further preferred twelve flow deflection elements. Further preferred, these are provided distributed uniformly over the circumference. A particularly advantageous solution regarding the installation space provides that, in axial projection, two flow deflection elements are formed overlapping over a portion of their extension, and further preferred over 20% to 80%, further preferred over 40% to 60% of their extension.

As a result of the proposed configuration, the wiping elements of the wiping device are suitable for a simultaneous cleaning of the inner surface of the cleaning tube as well as of the outer surface of the irradiation tube, and moreover, suitable for cleaning just the inner surface of a tube through which a fluid flows, and to which no concentrically arranged inner irradiation tube is allocated, thus, further, for example, for cleaning of a quartz glass tube through which a fluid flows, and which is UV-irradiated from outside.

All intermediate values, in particular in increments of one percent, and with respect to a single or multiple restriction of the stated range limits in the same incremental manner, from above and/or from below, are hereby included in the disclosure.

The invention is illustrated below in more detail by means of the attached drawing which shows an exemplary embodiment only. In the Figures:

Fig. 1 shows a cleaning device of the type in question in a perspective illustration;

Fig. 2 shows the cleaning device according to Fig. 1 in a side view;

Fig. 3 shows the enlarged cross section according to line III-III in Fig. 2;

Fig. 4 shows the cleaning device in an exploded perspective illustration;

Fig. 5 shows the cleaning device in a vertical cross section.

First, shown and described with reference to Fig. 1 is a cleaning device 1 for a fluid, in particular water.

The cleaning device 1 comprises first a cylindrical cleaning tube 2. The same is preferably formed as a quartz glass tube with an axial length which preferably corresponds to the 3-fold to 5-fold of the tube diameter. In the shown operational position, the cleaning tube 2 is preferably oriented vertically. The longitudinal tube axis is designated with x.

On one end, a bottom area 3 is allocated to the cleaning tube 2. The bottom area is formed cap-like, further preferred formed as an injection-molded plastic part. The bottom cap 4 provided in such a manner comprises first a wall section 5 which, in the allocated position to the cleaning tube 2, runs coaxial to the longitudinal axis x, and which merges into a funnel-like narrowing floor area 6. Transverse to the longitudinal axis x, the latter forms a bottom face 7, from the center of which a coaxially aligned tube section 8 projects inwards. Accordingly, the tube section 8 is surrounded by the wall section 5 at a radial distance, wherein further the free end of the tube section 8 ends approximately in the plane defined by the free edge of the wall section 5.

The bottom cap 4 is attached to the cleaning tube 2 in such a manner that the wall section 5 encompasses the facing edge section of the cleaning tube 2 in a sealing manner.

On the other end, the cleaning tube 2 comprises a top area 9. The same is formed cap-like as well, similar to the bottom area 3, further preferred formed identical to bottom cap 4, whereby correspondingly the bottom cap 4 as well as the top cap 10 can be produced in the same injection mold.

With its wall section 11, the top cap 10 encompasses correspondingly the facing wall area of the cleaning tube 2, wherein further here as well by means of the wall section 11 and an adjacent area 12, a cover face 13 is formed from which a tube section 14 projects which points towards the tube section 8 of the bottom cap 4. Both tube sections 14 and 8 have the same outer diameter as well as the same inner diameter, and further, both are coaxially aligned to the longitudinal axis x of the cleaning tube 2.

In the bottom area 3, a fluid intake 15 is formed, and correspondingly, a fluid discharge 16 is formed in the top area 9. Each of them are formed by a connection section 17, 18 having a tube-like shape, which connection section 17, 18 penetrating the respective wall section 5 and 11, respectively, is aligned in such a manner that the respective connection channel of the connection sections 17, 18 runs tangential into the inner wall of the bottom cap 4 and the top cap 10, respectively. Further, the connection section 17 in the bottom area 3 and the connection section 18 in the top area 9 are arranged in such a manner that they, in a projection on a transverse plane to the longitudinal axis x, extend outwards in this plane pointing in the same direction, and further run parallel to each other in a position spaced apart from each other. The connection sections 17 and 18 serve for connection of a supply line 19 and a discharge line 20.

Further, within the cleaning device 1, inside the cleaning tube 2 and arranged concentrically thereto, an irradiation tube 21 is received. In a preferred configuration, the same is a quartz glass tube. The latter is put in a sealing manner over the tube sections 8 and 14 of the bottom cap 4 and the top cap 10, and extends further over the entire axial length, each of them with support on the bottom face 7 of the bottom cap 4, and on the cover face 13 of the top cap 10, respectively.

Within the irradiation tube 21, an UV-irradiation device 22 is received, which is shown in the illustrations schematically only. It is further within an inner tube area which is enclosed by the irradiation tube 21 and the tube sections 8 and 14, and which is open on each side towards the outside in axial direction.

The cross sectional dimensions, or the diameters of irradiation tube 21 and of the cleaning tube 2 surrounding the same, respectively, are selected in the illustrated exemplary embodiment in such a manner that the inner diameter a of the cleaning tube 2 corresponds approximately to the 1.8-fold of the outer diameter b of the irradiation tube 21. As a result of this arrangement, a ring space 23 extending over the entire inner height of the cleaning device 1 is generated between the irradiation tube 21 and the cleaning tube 2.

Further, within the cleaning device 1, a wiping device 24 is provided. The same consists first of two wiping elements 25 extending in axial direction. They extend at least over the entire axial length of the cleaning tube 2, further, as shown, axially upwards into the top cap 10. Each of the two wiping elements 25 are aligned radially to the longitudinal axis and are further in a diametrically opposing position, and have further a rib-like cross section with a width, viewed in circumferential direction of cleaning tube 2, which corresponds approximately to ^ to ioo of the inner wall circumference of the cleaning tube 2. Thus, an approximately lip-like configuration of the wiper-like wiping elements 25 is generated. Further preferred, the wiping elements 25, in particular the actively wiping areas thereof, are made of soft plastic.

The wiping elements 25 have further such a radial extension that they abut radially inside on the outer surface 26 of the irradiation tube 21, and at the same time radially outside on the inner surface of the cleaning tube 2. Thus, as a result of an appropriate rotation of the wiping elements 25 about the longitudinal axis x, a wiping of the outer irradiation tube surface 26 as well as of the inner cleaning tube surface 27 is achievable.

As further can be seen, particularly from the illustration in Fig. 5, each wiping element 25, viewed over the axial length of the wiping elements 25, comprises alternately areas in the radially inner area as well as in the radially outer area which abut on the inner surface 27 or on the outer surface 26, respectively, and areas which run at a distance to the inner surface 27 or to the outer surface 26, respectively. Thus, in the shown exemplary embodiment, viewed over the axial length of a wiping element 25, the axial height of an area 30 abutting on the outer surface 26 of the irradiation tube 21 is selected equal to the area 31 which corresponds to the distance between two such abutting areas 30 in axial direction to each other and which runs at a radial distance to the outer surface 28. These space-apart areas 31 are formed by recesses which are open-edged radially inwards.

Also the radially outer area of each wiping element 25 is provided with such alternating areas, thus further with abutting areas 28 which abut on the inner surface 27 of the cleaning tube 2, and which are spaced apart from each other in axial direction by spaced-apart areas 29 spaced apart from the inner surface 27.

In the illustrated exemplary embodiment, the radially outer areas 28 which abut on the inner surface 27 are allocated height-related with respect to the axial height to the areas 31 which are spaced apart radially inside from the outer surface 26, so that in a longitudinal cross section according to Fig. 5, a nested arrangement of the abutting areas 28 and 30 is achieved.

It is further provided that the areas 28 of the one wiping element 25 abutting on the inner surface 27, as well as its areas 30 abutting radially inside on the outer surface 26, are formed vertically offset by the axial height dimension of such an area at the other wiping element 25. Correspondingly, circumferentially offset to an area 28 which is pointing radially outwards and which is abutting on the inner surface 27, an area 29 which is spaced apart from the outer surface 26 is formed radially outside on the other wiping element 25. The same applies accordingly for the areas pointing radially inwards.

As a result of this configuration, over the entire axial length of the wiping elements 25, a full-surface abutment of the same on the allocated outer surface 26 or inner surface 27, respectively, is not given. The tube areas which, during the rotation of the wiping elements 25, are not passed in the first instance by the abutting areas 28 or 30, respectively, and hence are not cleaned, are covered and cleaned by the wiping element 25 which follows in rotational direction, and the areas 28, 30 which are arranged accordingly with an offset in height.

The wiping elements 25 are connected to each other in a rotationally fixed manner. For this, the ends of the wiping elements 25 which are allocated to the top area 9, are connected to each other by means of a support ring 32 preferably integrally formed thereon. The same is provided with an inner diameter which is adapted to the outer diameter of the irradiation tube 21.

The wiping elements 25 are also connected with each other on the floor side.

For this, a ring 34 is provided which carries the flow deflection elements from below, and on which the wiping elements 25 are attached in a rotationally fixed manner, thus, for example, snapped into place. Hereby, a torsion-free arrangement of the wiping elements 25 within the ring space 23 is given, wherein further the irradiation tube 21 quasi serves as support shaft for the wiping device 24. Each of the flow deflection elements 33, which project on the lower side of the ring 34 into the remaining ring-shaped free space of the bottom cap 4, runs helically to the longitudinal axis x of the cleaning tube 2, and further helically in extension of the fluid intake 15 running tangentially into the bottom cap 4. In the illustrated exemplary embodiment, uniformly distributed over the circumference of the ring space remaining between the irradiation tube 21 and the shell-shaped wall section 6, twelve such flow deflection elements 33 are provided, the flow-through spaces of the same, which are remaining in circumferential direction between two flow deflection elements 33, are open vertically upwards and run into the ring space 23 between irradiation tube 21 and cleaning tube 2.

The flow deflection elements 33 comprise further an extension length and a pitch which result in a partial overlapping of two flow deflection elements 33 in axial projection.

The whole wiping device 24, in particular consisting of the wiping elements 25, the top-side support ring, and the floor-side ring 34, including the integrally formed flow deflection elements 33, is formed in itself in a rotationally fixed manner for the rotation about the longitudinal axis x of the cleaning tube 2.

The fluid which flows in through the fluid intake 15 (schematically shown in the drawings by the arrows c) causes, as a result of the tangential inflow into the bottom area 3, and further, as a result of the flow through the flow deflection elements 33 on the wiping device side, a rotation of the wiping device 24 about the longitudinal axis x, upon which rotation contaminant deposits are removed from the surfaces by means of each of the areas 28, 30 abutting on the outer surface 26 and on the inner surface 27, respectively. Further, by means of the areas 29 and 31 of the wiping elements 25 spaced apart from the respective surfaces, a flow through the wiping elements by the fluid is achieved, and this further, if necessary, while stirring up the contaminants to be irradiated by the UV-irradiation device 22.

After a substantially vertical flow through the cleaning tube 2 - during which flows the respective irradiation takes place - the fluid exits the cleaning device 1 through the fluid discharge 16 which is aligned tangentially and points in the rotational direction of the fluid.

All disclosed features are essential for the invention (on their own). The disclosure content of the associated/enclosed convention documents (copy of the prior application) is hereby fully incorporated in the disclosure of the application, also for the purpose to introduce features of these documents into the claims of the present application. The sub-claims characterize in their optionally independent version an independent and inventive development of the prior art, in particular to make divisional applications based on these claims.

REFERENCE LIST

1 Cleaning device

2 Cleaning tube

3 Bottom area

4 Bottom cap

5 Wall section

6 Floor area

7 Bottom face

8 Tube section

9 Top area

10 Top cap

11 Wall section

12 Area

13 Cover face

14 Tube section

15 Fluid intake

16 Fluid discharge

17 Connection section

18 Connection section

19 Supply line

20 Discharge line 1 Irradiation tube

2 UV-irradiation device

23 Ring space

24 Wiping device

25 Wiping element

26 Outer surface

27 Inner surface

28 Abutting area

29 Spaced-apart area

30 Abutting area

31 Spaced-apart area

32 Supporting ring

33 Flow deflection elements

34 Ring a Inner diameter

b Outer diameter c Fluid

x Longitudinal axis

Claims

1. A cleaning device (1) for a fluid, for example water, wherein the fluid flows through a cylindrical cleaning tube (2) and is cleaned hereby by irradiation, in particular UV-irradiation, wherein further the cleaning tube (2) comprises a bottom area (3) in which a fluid intake (15) is formed, and a top area (9) in which a fluid discharge (16) is formed, wherein furthermore, within the cleaning tube (2), a wiping device (24) rotatable about the longitudinal axis (x) of the cleaning tube (2) and with wiping elements (25) extending in axial direction is provided, characterized in that the wiping elements (25) are fix connected on the bottom side with flow deflection elements (33) extending in circumferential direction of the cleaning tube (2), wherein the inflowing fluid rotates the wiping elements (25) by flowing through the flow deflection elements (33).

2. The cleaning device according to the features of the preamble of the claim 1 , or according to claim 1 , characterized in that over the axial length on a wiping element (25), areas (28) are formed which abut on an inner surface (27) of the cleaning tube (2), and areas (29) which run at a distance to the inner surface (27) of the cleaning tube (2).

3. The cleaning device according to one or more of the preceding claims, or in particular according thereto, characterized in that the fluid intake and/or the fluid discharge of the cleaning tube (2) takes place in a plane perpendicular to a longitudinal axis (x) of the cleaning tube (2).

4. The cleaning device according to one or more of the preceding claims, or in particular according thereto, characterized in that the fluid intake and/or the fluid discharge takes place offset to a center axis of the cleaning tube (2).

5. The cleaning device according to one or more of the preceding claims, or in particular according thereto, characterized in that an irradiation tube (21) is arranged concentrically to the cleaning tube (2).

6. The cleaning device according to one or more of the preceding claims, or in particular thereto, characterized in that the wiping elements (25) act at the same time on the outer surface (26) of the irradiation tube (21).

7. The cleaning device according to one or more of the preceding claims, or in particular according thereto, characterized in that at least two wiping elements (25) are provided circumferentially offset, and that to the areas (28, 30) of a wiping element (25), which areas (28, 30) abut on the inner surface (27) of the cleaning tube (2) and/or on the outer surface (26) of the cleaning tube (21), areas (29, 31) are allocated circumferentially offset on the other wiping element (25), which areas (29, 31) run at a radial distance to the inner surface (27) and the outer surface (26), respectively.

8. The cleaning device according to one or more of the preceding claims, or in particular according thereto, characterized in that the wiping device (24) comprises a plurality of flow deflection elements (33) running helically to the longitudinal axis (x) of the cleaning tube (2).

9. The cleaning device according to one or more of the preceding claims, or in particular according thereto, characterized in that two or more flow deflection elements (33) are provided distributed over the circumference.

10. The cleaning device according to one or more of the preceding claims, or in particular thereto, characterized in that twenty or less flow deflection elements (33) are provided distributed over the circumference.

11. The cleaning device according to one or more of the preceding claims, or in particular thereto, characterized in that in axial projection, two flow deflection elements (33) are formed overlapping over a portion of their extension.