DE8717603U1 - Device for cleaning a pipe system at swimming pools - Google Patents

Description

Device for cleaning a pipe system at swimming pools

IaJ

The invention relates to a device according to the preamble of claim 1.

When the bathing water was drained from bathing facilities with pipe systems of the type described above after bathing, the interior of the bathing facility could be effectively cleaned in the usual way, whereas until now it was impossible or at least extremely difficult to clean the interior of the pipe system quickly and effectively. This is due to the fact that there are many hard-to-reach places in the pipe system where contaminants can settle and where it is then very difficult to get to these contaminants. It is clear that this creates the risk that contaminants in the form of, for example, bacteria, dirt, skin residues, hair from the bather will spread into the water when the next person bathes or when the same person bathes the next time, which is completely unacceptable given today's hygiene requirements.

The invention aims to improve a device of the type mentioned at the outset so that a quick and effective cleaning of the pipe system is possible.

Postgiroemi: Karleruhe 76979-754 ßägkkifnto:

if)Sgn)< Aß VHÜngen (bank code 69470039) 146332

This object is achieved according to the invention by the characterizing features of claim 1.

This allows all parts of the pipe system and any associated units to be cleaned in a very effective manner.

The subclaims are directed to advantageous embodiments of the invention.

The device according to the invention is explained in more detail below with reference to the drawings. They show:

J Fig. 1 is an oblique view of a bathing facility with a

f cleaning device according to the invention,

' Fig. 2 a side view of the bathing facility according to Fig. 1,

Fig. 3 the bathing facility according to Fig. 1 seen from one end wall,

;■ Fig. 4 the bathing facility according to Fig. 1 from the other end

wall seen,

; Fig. 5 is a schematic view of the device shown in Fig. 1

Bathing facility during a draining process,

Fig. 6 the bathing facility shown in Fig. 1 after the emptying process,

Fig. 7 the bathing facility shown in Fig. 1 during a rinsing process,

Fig. 8 a longitudinal section of a pipe of the cleaning device,

Fig. 9 is a cross-section of the pipe along the line IX-IX in Fig. 8,

Fig. 10 is a side view of parts of a jet-emitting line in the cleaning device,

Fig. 11 is a schematic front view showing how the various lines of the cleaning device are routed,

Fig. 12 is an oblique view of a distribution valve of the device according to the invention, and

Fig. 13 is a section through the distribution valve according to Fig. 12.

The bathing facility 1 shown in the drawing has a bathtub 2 with a pipe system 3, which is intended to generate so-called spray jets 4 and air bubbles 5 in the bathing water 6.

To flush water into the bathtub 2, a cold water pipe 7 and a domestic water pipe 8 are connected to the bathtub 2. These pipes lead into a mixer 9 with operating elements 9a, 9b for cold and hot water respectively. The water pipes 7, 8 are connected to the water supply system of the building in which the bathing facility 1 is installed. The water pressure in such a supply system is generally about 0.4 - 0.6 HPa. The bathing water can be supplied to the bathtub 2 through the pipe system 3, which is achieved by the mixer 9 being connected to the pipe system 3 via a pipe 10.

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The pipe system 3 has a water pump 11 which sucks in bath water 6 from the bathtub 2 through a water pipe 12 and pushes this bath water back through water pipes 13, 14 into the bath water in the bathtub 2 via several nozzles 15.

The pipe system 3 also has air lines 16, 17 with an air inlet 18. The water lines 13 and 14 are connected to the air lines 16 and 17 via ejector devices 19, which are arranged in such a way that the nozzles 15 emit so-called spray jets in the form of water/air streams to the bath water 6 in the bathtub 2. The water pump 11 is controlled by an operating element 21 and the ratio of the air admixture to the spray jets 4 is regulated on the left side of the bathtub 2 by an operating element 22 and on the right side of the bathtub 2 by an operating element 23.

Furthermore, the pipe system 3 has a compressed air line 24 (or several such lines) which extends along the bottom of the bathtub 2 and expediently upwards along one end wall of the bathtub 2. The compressed air line 24 is connected to the interior of the bathtub 2 via air holes 25, which are intended to release air into the bath water 6 in order to generate air bubbles 5 therein. Compressed air in the compressed air line 24 is generated with the aid of an air pump 27, which sucks in air via an air inlet 28 and releases compressed air via a connecting line 29 to the compressed air line 24.

The bathing facility also has a flushing device 30 for flushing the pipe system 3. The flushing device 30 draws clean water 31 from the water supply system via a flushing water line 32, for example from the cold water line 7 (and possibly also from the hot water line 8), or from another water line in the water supply system? The flushing water line 32 has a solenoid valve 33 which is controlled by a time relay 34 or the like in order to open or close the flushing water flow through the flushing water line 32. The latter line opens into a flushing water distributor 35, which distributes clean flushing water coming from the flushing water line 32 to lines emitting flushing jets S, namely a line 36 for flushing the water line 13, a line 37 for flushing the water line 14, a line 38 for flushing the air line 16, a line 39 for flushing the air line 17, a line 40 for flushing the water pump 11 and/or a branch line 41 of the water pump 11, and a line 58 for flushing the water line 12 and expediently also for flushing the water pump 11 or parts thereof. The lines emitting flushing jets S 36 - 39 are expediently also provided for flushing the nozzles 15.

By means of the above-described flushing device 30, pure water is introduced into the water pipes 13, 14 and into the air pipes 16, 17. After flushing the pipes 13, 14, 16, 17 mentioned, the flushing water can flow through the nozzles 15 into the bathtub 2 and then exit the bathtub 2 through the drain 42.

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A flushing water line 43 (or several such lines) also extends from the flushing water distributor 33 for flushing the compressed air line 24, and the flushing jet emitting line 43 conveniently enters through an elevated section of this compressed air line 24. The flushing water supplied to the compressed air line 24 via the flushing water line 43 is, after flushing, led through a branch line <J<* into a drain valve 45 and from there via a branch line 46 into the drain 42. The water pump 11 has a branch line 47 leading to the drain valve 45 so that the water pump 11 can be effectively emptied of flushing water. The flushing water from the water pump 11 can be led from the drain valve 45 via a branch line 48 (or the previously mentioned branch line 46) into the drain 42.

, The flushing device 30 also has a bath

\ water level sensor 49, which should sense when

% draining the bath water from the bathtub by

: has started the drain 42 and the bath water is on

a certain level, e.g. the level where the nozzles

J 15, or even lower

The bath water level sensor 49 interacts via an electrical circuit 50 with a time relay 34, which in turn controls the solenoid valve 33. The time relay

Relay 34 is adjustable to control the solenoid valve 33 so that it automatically opens the flushing water line 32 a certain time, e.g. 5, 8 or 10 minutes, after it has received the signal* from the bath water level sensor 49 that the release of bath water from the bathtub 2 has begun or a certain part of the bath water 6 has been emptied from the bathtub 2. Furthermore, the time relay 34 controls the solenoid valve

valve 33 so that it keeps the flushing water line 32 open for a certain time, e.g. 1, 2 or 5 minutes, before it causes the solenoid valve to close the flushing water line 32 again, i.e. to stop the flushing of the pipe system 3.

The drain valve 45 is closed when the bottom valve 51 of the bathtub 2 is closed, but the drain valve 45 cooperates with the bottom valve 51 in such a way that an opening movement of the bottom valve 51 is transmitted to the drain valve 45 in such a way that the latter is opened when the bottom valve 51 is opened, which means that the drain valve 45 only lets out flushing water from the branch lines 44, 47 when the bottom valve 51 is open.

The rinsing device 30 also has a container 52 for disinfectant and/or cleaning agent. The container 52 can be filled through a filling pipe 53 and has a liquid level indicator 54 to show the liquid level in the container. The indicator 54 is provided with a float (not shown) mounted in the container 52 and a clearly visible pointer 55 which shows the liquid level in the container 52. The container is connected to the rinse water line 32 via a line (not shown) and disinfectant and/or cleaning agent is automatically sucked into the rinse water line 32 via an ejector device 57 when rinse water flows through the rinse water line 32.

Fig. 5 shows schematically how the bath water circulates and compressed air is supplied during bathing. After the bath is finished, the bather opens the bottom valve 51. As the bath water flows out of the bathtub, the water pressure on the bath water level sensor 49 drops, and when the bath water level has fallen and is at the same height as the nozzles 15, as shown in Fig. 6, or lower, the bath water pressure on the bath water level sensor 49 has reached such a limit that the said sensor 49 sends a signal to the time relay 34 via an electrical circuit 50. This signal stimulates the time relay to open the solenoid valve a certain time after the signal is received. It is very important that this time is not longer than the time for the automatic rinsing of the pipe system 3 to start, before contaminants, e.g. bacteria, skin residue, hair, etc., have become more firmly embedded in the pipe system 1 through drying. In other words, the flushing of the pipe system 3 should start when the inside of the pipe system 3 is still wet after bathing, which means that the impurities can be flushed away in a short time without difficulty and with little flushing water consumption.

The time between the start of the time relay and the opening of the flushing water supply to the flushing device 30 can vary, for example, depending on the type and size of the bathing facility. In the illustrated bath 2, a time of 5, 8 or 10 minutes can be selected from the signal sent to the time relay 34 until the flushing water relay opens. This time is considered sufficient so that the bather does not have to rush to the

The bather does not have to leave the bathtub 2, but can get out of the bathtub without any haste before the flushing of the pipe system 3 begins, and the bather even has time e.g. to shower, dry himself or simply rest before he leaves the bathtub 2 and the flushing begins.

The time relay 34 conveniently allows a variation of the above-mentioned time period as required and the time relay is adjustable so that it can automatically close the flushing water line 32 again a certain time after the start of the flushing, ie stop the flushing of the pipe system 3. This flushing time is conveniently 1, 2 or 5 minutes for the bathtub 2 shown, but can be varied and adapted to the type and size of the bathing facility 1 and the degree of contamination.

In Fig. 7 the flow is shown when the flushing device 30 is in operation. When this flushing is finished, the entire pipe system 3 is cleaned so well that the bathing facility 1 can be used by another person without any risk of this other person being exposed to health hazards or other discomfort.

The effective rinsing is also helped by the fact that the disinfectant and/or cleaning agent is supplied to the pipe system 3 together with the rinsing water before the contaminants in the pipe system 3 have had time to dry and thus have been able to settle properly.

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In order to achieve effective flushing of the lines 12, 13, 16, 17, 24 of the pipe system 3, the pump 11 and the nozzles 15 as well as all narrow, hard-to-reach places in these devices, the lines 36 - 40, 43 and 58 emitting the flushing jets S consist of perforated hoses made of flexible material which can be connected to the flushing water distributor 35 and inserted into the relevant line 12, 13, 14, 16, 17, 24, if necessary into the branch pipe 41 and appropriate parts of the pump 11 as well as into the nozzles 15, the flexible material being selected such that the hoses can also be pressed through curved parts of the lines mentioned. The free end sections 59 of the hoses located within the respective lines are closed so that they do not let flushing water out through the said end sections. The hoses are coupled to the lines 12, 13, 14, 16, 17, 24 only at the inlets of these lines, while they extend loosely through the lines.

To ensure that hoses 36 - 40, 43 and 58 can be quickly connected and disconnected from j the flushing water distributor 35,

into the relevant line 12, 13, 14, 16, 17, 24 and can then be quickly coupled to the inlets 60 of the lines 12, 13, 14, 16, 17, 24, special coupling devices are used, which are shown in Fig. 10. The coupling 61 for coupling the respective hose to the flushing water distributor 35 consists of

' an angular key handle section 62 and two in different

< different directions from it emanating sleeves 63, 64

f with external thread. The sleeve 63 is inserted into the wall 65 of the

f flush water distributor 35 can be screwed in. For example

f after screwing the sleeve 63 into the hand 65, the

' Hose is inserted into the sleeve 64 until it rests against a

edge formed by the inner parts of the wrench handle section 62. A nut 66 provided on the sleeve is then screwed in the direction against the wrench handle section 62, whereby the sleeve 64 is clamped around the hose and holds it in place.

To connect the hose to the inlets 60 of the lines 12, 13, 14, 16, 17, 24, the inlets are

after which

sins?· Pfropfsri 6? ."".it internal thread euegerü a coupling 61 is put on the hose and the hose is inserted into the respective line 12, 13, 14, 16, 17, until it extends through the entire line or through appropriate parts thereof. The coupling 61, which serves to fix the hose to the inlets 60 of the lines, is expediently identical to another coupling 61 for connecting the hose to the flushing water distributor 35, which is why these couplings and their parts have the same reference numerals. The only difference between the two couplings may be that the key handle 62 in the coupling 61 for the inlets 60 does not have a part projecting inside the insides of the sleeves 63, 64. These internal parts are missing in order to allow the hose to be pushed through the coupling more easily. The couplings 61 for the inlets 60 are screwed tight by screwing their sleeve 63 into the plug 67. Then the nut 66 is screwed against the wrench handle part 62, whereby the sleeve 64 clamps the hose, which is thus fixed to the coupling 61. The couplings 61 allow the hose to be quickly dismantled for possible replacement or cleaning by simply loosening the nuts 66 on the two couplings, after which the hose can be released from the flush water distributor 35 and pulled out of the respective line 12, 13, 14, 16, 17, 24.

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The sections of the hoses 36, 37, 38, 39, 40, 43, 58 located inside the lines 12, 13, 14, 16, 17, 24 have in their longitudinal side walls a plurality of holes 69 provided in successive wall sections 68a, 68b, 68c, 68d, 68e, 68f in order to generate the rinsing jets S and to direct them outwards towards the inner sides 70 of the lines in transverse directions T in relation to the longitudinal directions of the lines. Each section 68a - 68f conveniently has several such holes 69. Thus, each section 68a - 68f can have three or more, preferably four, holes 69 evenly distributed around the side walls 68 of the hose in order to direct flushing jets against all parts of the inner sides 70 of the lines 12, 13, 14, 16, 17, 24 around the hose (see Fig. 9). The spaces between the sections 68a - 68f with the holes 69 are selected so that each set of holes directs powerful flushing jets S against sections 70a - 7Of of the inner sides 70 of the pipes, whereby the sections 70a - 7Of are of such length that they connect to one another (see Fig. 8). This allows every part of the pipes and also the units connected to the pipes, e.g. the water pump 11, to be flushed clean.

As an example of a device requiring a powerful flushing effect, it should be mentioned that the hoses 36, 37, 38, 39, 40, 43, 58 have an outside diameter of about 6 mm, a wall thickness of about 0.5 mm, the holes 69 have a diameter of about 1 μm and the hoses are inserted into lines 12, 13, 14, 16, 17, 24 with an inside diameter or width of about 30 mm. The hoses thus have an outside diameter which corresponds to about one fifth of the inside diameter or width of the surrounding lines or device parts, and the holes 69 in

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the hoses have a diameter of about one sixth of the outside diameter of the hoses. The holes 69 can be of any convenient shape, for example round or oblong. The holes 69 can, as shown in the drawing, always be open or they can also be slots which are closed when there is no pressure in the respective hose, which open due to the flexibility of the hose when there is pressure in the hose to let water out, and which close again automatically due to the flexibility of the hose when the pressure in the hose ceases. This ensures that water cannot penetrate into the hoses from the outside and that the pressure in the lines around the hoses contributes to an improvement of this type of check valve.

By connecting the hoses via the flushing water distributor 35 and suitable pipes to the conventional water supply system with a pressure of 0.4 - 0.6 MPa, flushing jets S are obtained that are so powerful that they hit the inner sides 70 with force, thereby achieving an extremely effective flushing of the inner sides 70. The hoses 36, 37, 38, 39, 40, 43, 58 are thus directly coupled to the flushing water distributor 35 and introduced into the respective line 12, 13, 14, 16, 17, 24 and, if necessary, also into the branch line 41, taking on the shape of the curved parts of each such line. When the respective hose has reached the end section of the respective line, the hose is fixed at the inlet to the respective line, while it is otherwise allowed to lie loose inside the line. In the same way, hoses are introduced into the respective units or devices, e.g. the pump 11, whereby care must of course be taken that the hose does not obstruct any moving parts in the said units. After these simple steps, the device is ready for use.

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After the pipe system 2 has been emptied of water, the cleaning device 30 is started, whereby the hoses 36, 37, 38, 39, 40, 43, 58 are filled with tap water and the flushing jets S are emitted mainly in the transverse direction T in relation to the longitudinal direction of the pipes 12, 13, 14,16,17, 24,41 and in the transverse direction in relation to channels in the pump 11. In addition, flushing jets S can be expediently directed into the nozzles 15. Since the flushing jets S are under high pressure and are emitted from hoses 36, 37, 38, 39, 40, 43, 58 which are located near the sections 70a-70f to be cleaned, the flushing jets S hit these sections 70a-70f with such great force that

&igr; the sections mentioned are effectively flushed clean.

After rinsing, the rinse water will flow out through drain 42.

Z Since flushing jets S are evenly distributed at each hose

:t section 68a - 68f and the hoses

36, 37, 38, 39, 40, 43, 58 made of practical, flexible

Material will consist of the flushing jets S as a result of their

'" res pressure ä ^ia hoses in lines 12, 13, 14,

16, 17, 24, 41 are largely centered, whereby all parts of the inside 70 of the lines are flushed with the same effectiveness. Fixing the hoses

inside the pipes: is therefore not necessary, instead the hoses can lie loosely in them, as they automatically center themselves during the flushing. Through this flushing, all hard-to-reach places in the pipe system 3 can be cleaned extremely effectively with a simple and reliable cleaning device.

To improve the rinsing effect, the rinsing water distributor 35 is suitable for carrying out a number of rinsing processes, whereby in each process only one water and/or air line or a group of water and/or air lines of the pipe system 3 is rinsed clean, while no rinsing water is supplied to the other water and/or air lines in this process. For this purpose, the rinsing water distributor 35 has a distribution valve 82, which consists of a valve housing 59 and a distribution element rotatably arranged therein in the form of a valve plate 83. The latter is driven by a drive motor 84 and is mounted on the output shaft 62 of the drive motor 84. The valve plate 83 has a peripherally running rinsing water channel 85, which is connected to the cold water line 7 or hot water line 8 of the supply system 7, 8 via an opening 86 in the valve housing 59. From the flushing water channel 85, a connecting channel 65 in the valve plate 83 extends radially inwards and then axially outwards against a front wall 66 of the valve housing 59. Openings 67-73 are provided in the front wall 66, and flushing lines 36-41 and 12a for the water and/or air lines of the pipe system 3 are coupled to the front wall 66 in such a way that each such line is connected to one of the openings 67-73. The connecting channel 65 is arranged in such a way that it can be connected to one of the openings 67-73 after the other, whereby flushing water from

the cold water pipe 7 or hot water pipe 8 can flow out via the opening 86, the flushing water channel 85, the connecting channel 65, one of the openings 67-73 and through the water and/or air line assigned to the respective opening.

The water and/or air lines of the pipe system 3 are flushed with the aid of the distribution valve 82 in several different flushing processes. In a first flushing process, the drive motor 84 has rotated the valve plate 83 into such a position that flushing water can only pass from the cold water line 7 into that of the flushing lines 38 or 39 that is intended for flushing one of the upper air lines 16 or 17, while cold water or hot water is not supplied to any of the other flushing water lines 36-41 and 12a of the pipe system 3 in this flushing process. When the flushing process starts, only one of the air lines 16 or 17 is flushed. By supplying the flushing water from the cold water line 7 to only one line 36-41 or 12a at a time, instead of being distributed to all lines 36-41 and 12a in the pipe system, the pressure of the flushing water in one of the lines 38 or 39 for flushing one of the air lines 16 or 17 will be significantly higher than if the flushing water from the cold water line 7 is distributed to all flushing water lines 36-41 and 12a simultaneously. As an example, it should be mentioned that if the flushing water pressure in the cold water pipe 7 is 0.4 - 0.5 MPa, the flushing water pressure in one of the flushing pipes 38 or 39 is also essentially unchanged at 0.4 - 0.5 MPa, which means that one of the flushing water pipes 38 or 39 emits such powerful jets of flushing water against the inside of the air pipe 16 or 17 that any impurities on it are effectively flushed away. Palis, on the other hand, directs the flushing water from the cold water pipe 7 to the

seven different flushing water lines 36-41 and 12a simultaneously, the flushing water pressure in each flushing water line 36-41 and 12a will be significantly lower and thus the flushing effect will also be significantly lower.

When the flushing of one air line 16 or 17 is complete, the next flushing process follows in which the drive motor 84 rotates the valve plate 83 until the connecting channel 65 communicates with the other flushing water line 38 or 39 of the air lines 16, 17. As a result, the flushing water supply to the flushed air line 16 or 17 will stop and the other air line 16 or 17 will be flushed instead. This is followed by the third flushing process in which the drive motor 84 rotates the valve plate 83 until the connecting channel 65 only communicates with one of the flushing water lines 36 or 37 for flushing one of the two water lines 13 or 14, which are at a level below the air lines 16, 17. After completion of this flushing process, the fourth flushing process follows in which the valve disc .^3 is rotated to allow flushing water to flow only to the other flushing water line 36 or 37. This is followed by the fifth flushing process in which flushing water is only supplied to the flushing water line 12a located at an even lower level to flush the water line 12. In a sixth flushing process, the branch line 41 of the water pump 11 can be flushed by directing flushing water only to the flushing water line 40, and in a seventh flushing process, the compressed air line 24 can be flushed by directing flushing water only to the flushing water line 43.

By flushing the pipes of the pipe system 3 one after the other, an effective flushing of each pipe is achieved, but alternatively it is possible to direct flushing water into a group of pipe system pipes,

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e.g. in both air lines 16, 17 simultaneously or zgr;. e.g. in two or more flushing water lines located in the compressed air line 24.

^ To flush the water and/or air lines of the pipe system 3 it is advantageous, but not essential

; necessary to use flushing water lines 36-41 and 12a

If necessary, the rinsing water can be fed directly into the water and/or air lines, e.g. through end openings in them.

It is also advantageous to supply flushing water to the pipe or pipes that are located at the top of the pipe system 3 in a first flushing process, since flushing water in this case is passed through at least one subsequent

f de, at a lower level line flow

/ can. However, this is not a prerequisite for the inventive

^; procedures in accordance with the invention, because in the initial flushing process a different line or lines than the topmost line or lines may be flushed.

It is obvious that each rinsing process should preferably begin immediately after or shortly after the previous rinsing process, since the entire rinsing process can then be carried out in a suitable time. However, it is possible, if desired, to introduce breaks between the rinsing processes.

The invention is not limited to the device described above, but can be modified within the scope of the following patent claims. For example, rinsing can be carried out not only after bathing but also before a new bath. More than one line generating rinsing jets can be arranged in each line of the pipe system and/or in its units or devices, and the latter lines can be hoses or pipes or have a different shape and they can also be fixed inside the pipes so that they are held in certain predetermined positions instead of running loosely. If the lines generating rinsing jets are flexible hoses, they can be provided with centering pieces which are, for example, placed on the hoses and which have the task of holding the hoses in the middle of the pipe system lines.

The drive motor 84 is conveniently controlled by a timer (not shown) which is programmable, among other things, so that the length of the flushing processes and, if necessary, their sequence can be varied. The distribution valve can be of a different type to that illustrated and the supply system 7 can also be of a different type to that illustrated and have a different pressure to that indicated.

Finally, it should be mentioned that a flushing process is preferably interrupted by turning the valve plate 83 of the distribution valve 82 into such a position that its connecting channel 65 is not connected to any of the flushing water lines 36-41 and 12a.

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The description of the embodiment of the device according to the invention is based on a special bathing facility with five different water and/or air lines or flushing water lines for these. However, the device according to the invention can of course be applied to other types of bathing facilities, namely those that have a smaller or larger number of water
and/or air lines or flushing water lines for these than the bathing facility illustrated.

Claims (7)

1. Device for cleaning a pipe system in bathing facilities, in particular bathtubs, through which pipe system water and/or air can be introduced into the bathing water of the bathing facility in order to generate water flows and/or water/air flows and/or air bubbles therein, whereby rinsing water for cleaning the pipe system (3) can be fed into it, characterized in that the rinsing water can be fed to only one selectable water and/or air line or a selectable group of water and/or air lines of the pipe system (3) by means of an adjustable distributor (35). 2. Device according to claim 1, characterized in that through a first setting of the flushing water distributor (35), flushing water can only be supplied to one water and/or air line or a group of water and/or air lines of the pipe system (3) which is at a higher level than the other water and/or air lines or groups of water and/or air lines of the pipe system (3). Postgiroamt: Karlsruhe 76979-754. Bank account: DeutSc0e*Ba}ilc JVG Villingen (bank code 69470039) 146332 - 22 - 3. Device according to Art.rprnoh 1 or 2, characterized in that the flushing water can be guided from the flushing water distributor (35) into flushing water-carrying hoses (36 - 40, 43 and 58) which are arranged in the pipe system (3) and are perforated. 4. Device according to one of claims 1 to 3, characterized in that the hoses (36 - 40, 43 and 58) consist of flexible material and can be inserted into the pipe system (3) and removed therefrom, the flexible material being selected such that the hoses (36 - 40, 43 and 58) can also be pressed through curved parts of the pipe system (3). 5. Device according to claim 4, characterized in that free end parts (59) of the hoses (36 - 40, 43 and 58) located within the pipe system (3) are closed. 6. Device according to one of claims 3 to _5, characterized in that flushing jets can be directed through the holes in the perforated hoses (36 - 40, 43 and 58) against the inner sides (70) of the lines of the pipe system (3) around the hose (36 - 40, 43 and 58). 7. Device according to one of claims 3 to 6, characterized in that the hoses (36 - 40, 43 and 58) are connected to lines of the pipe system by coupling devices (61) (3) are coupled.