EP2308609A1 - Cleaning and disinfection system for pipes, tubes and container and necessary method - Google Patents

Abstract

The system has an aerosol-nebula-producer (3a) arranged in a pipe attachment (2) such that nebula-jet (4) produced by the producer is aligned in a pipe (1). The producer includes a compressed air stream device (3b), where the pipe is connected with the pipe attachment by an adapter (8). A flushing pipe (5) having a liquid connector and a compressed air connector are arranged in the pipe attachment. The producer is connected with the compressed air stream device, where the producer and the compressed air stream device are implemented as fine nebula nozzle (3). An independent claim is also included for a cleaning and disinfection method for pipes, tubes and containers.

Description

The cleaning and disinfection system for pipes, hoses and containers is based on the combination of different cleaning technologies and the subsequent disinfection. The cleaning and disinfection system consists of a pipe attachment with a corresponding pipe or hose adapter.

Cleaning and disinfection systems for pipes and hoses are known in various designs.

A pipe and hose cleaning process shows the DE 69837790 T2 on. It is by a
Cleaning fluid pulsed compressed gas passed to destroy a biofilm. Furthermore, a method for the external cleaning of hoses using a pressure-resistant cuff is described.

The DE 102007021011 A1 describes a rotary nozzle which is introduced into the tube, whereby solid particles (CO ₂ pellets) transported by a gas collide in a helical flow against the tube wall and thus dissolve contaminants.

Furthermore, it is off DE 102007002526 A1 a device is known in which a cleaning head is inserted into the tube, the tube wall is acted upon by high-pressure liquid and at the same time the suction takes place at another point of the cleaning head.

From the DE 4438939 C2 Pipe cleaning system is known, which intermittently introduces compressed air into a drinking water pipe to solve soiling.

The company font of the company Sanosil is an easyfog device known that radiates the generated fine mist for disinfection via an adapter in the pipe. An air flow with only low pressure (<0.2 bar) is used.

In this way, the mist can not be far into pipes and branches or hoses into it. This is especially true for thin and long pipes.

The invention has for its object to provide a cleaning and disinfection system for pipes, hoses and containers and an associated method, which is equally suitable for various cleaning and disinfection tasks. It should be useful both for different tubes or hoses as well as for different types and levels of contamination and allow the combined use of different cleaning technologies. In this case, impurities, e.g. of deposits, caking and biofilms in pipes or hoses and containers. At the same time, a disinfection should be possible with the system. In particular, effective disinfection should also be possible for small pipe diameters. The disinfectant should be used efficiently and at the same time the disposal quantities for disinfectant residues should be minimized.

Hereinafter, the use of the term tubes also includes hoses and containers.

The advantages achieved by the invention are that, for various cleaning tasks, such as e.g. Cleaning of deposits, caking and biofilms is just a universal system and device is required. On the other hand, through the connections, the device is comparatively small, easy to handle and cost-effective and can be connected to the respectively required media lines.

In the basic version, the cleaning and disinfection system consists of a flushing line Liquid connection and compressed air line as well as an aerosol mist generator and a pressure jet device. Through the purge line liquid is filled into the tube. The pulsed compressed air supply ensures pressure surges in the pipe and thus cleans the pipe wall, for example, from deposits, caking and biofilms.

At the same time, the compressed air can be used to blow out the liquid from the tube. The
The pressure jet device is arranged so that it directly opposite the tube and a correspondingly atomized means for disinfection and radiating into the tube. The working with compressed air or compressed gas pressure jet device allows for smaller pipe diameters and in branches of the pipeline effective mist and thus disinfection. By disinfecting with fine mist can be compared to the use of disinfecting liquid corresponding amounts of liquid and disposal costs saved. In the pipe attachment open different connections, such as a pressure jet device, eg Drucknebeldüse or fine mist, a purge line for water and possibly cleaning agent and a compressed air line.

By means of the purge line in combination with the compressed air connection pressure flushing processes can be realized. By pulsed pressure surges cavitation can be triggered, which leads to the solution of impurities. The pressure surges can vary in different frequencies between overpressure and negative pressure.

Likewise, a treatment with steam or ozone is possible.

The independent claim 2 discloses a disinfecting device for pipes, hoses and containers, in which an aerosol mist jet radiates into a pipe to be disinfected, hose or container. The mist is generated by an aerosol mist generator and set in motion by a pressure jet device. As aerosol producers come alongside Dual-fluid nozzles and high-pressure nozzles also ultrasonic atomizers and evaporators in question. By the pressure jet, preferably compressed air jet, the aerosol is transported into the pipe, the hose, containers, etc. Due to the small droplet size, the aerosol is very stable and can be used effectively in particular in comparatively long and narrow pipes, fittings, niches, etc. By disinfecting with fine mist can be compared to the use of disinfecting liquid corresponding amounts of liquid and disposal costs saved.

Advantageous embodiments of the cleaning and disinfection system for pipes and hoses emerge from the subclaims. According to the embodiment according to claim 3 aerosol mist generator and the pressure jet device are designed as Drucknebeldüse. This can be realized in a component advantageous both functions. The pressure mist nozzle can be designed, for example, as a fine mist nozzle, two-component nozzle or high-pressure nozzle. The working with compressed air or compressed gas fine mist allows even for smaller pipe diameters and in branches of the pipeline effective mist and thus disinfection. The fine mist nozzle is a two-fluid nozzle which atomises the treatment agent with compressed air (> 0.1 bar to approx. 50 bar) to form a fine aerosol. Due to this high pressure, it is possible that a mist of very fine droplet size (0.005 to 0.1 mm) is well distributed even in narrow pipes.

In the development of the disinfection device according to claim 4 is at the end of the pipe
Disinfectant detector for the disinfectant classified. Thus, the concentration of the disinfectant can be detected and thus carried out a proof of the disinfection of the entire tube.

With the training of the cleaning and

Disinfection system according to claim 5, the tube is connected by an adapter with the tube attachment. In this case, the pipe attachment is designed so that it can be connected to different adapters. The adapters allow a firm connection with the pipe. Interchangeable adapters make it easy to connect the cleaning and disinfection system with different pipes or hoses, such as GK coupling, Stotz coupling, div. Inch thread, crimping, etc.

According to the embodiment according to claim 6, a metering unit for cleaning agent is provided. The detergent additive allows a support of the cleaning by chemical or biological agents. Likewise, mechanically acting cleaning agents such as granules, dry ice etc. or other auxiliaries can be added.

The development according to claim 7 provides that in addition a gas line, a steam line, a sound source and / or a foam generator are arranged in the pipe attachment. By means of the gas line, cleaning and / or disinfecting gases such as ozone or hot air can be introduced into the tube. Through the steam line z. B. Heat can be introduced, which dissolves thermosets encrustations. On the other hand, by the heat simultaneously germination is possible. The sound source can emit sound waves in different frequency ranges, including ultrasound or infrasound, which can be used for cleaning and disinfection purposes. The sound can be introduced both in pipes acted upon with liquids and air / gases. The sound source can also trigger cavitations that dissolve impurities. Through a foam generator can foam in the pipe to be cleaned be introduced. Due to the foam, a good wetting of the surface in high active ingredient concentration is possible with a small amount of active ingredient. The foam transport can be transported by the pressure in the foam generation or by a pressure jet nozzle in the pipe. Here, the individual elements may be arranged individually or in combination on the device.

According to the embodiment according to claim 8 adjustable shut-off devices and / or check valves are provided in the connections of the fine mist, the purge line, the liquid connection, the compressed air connection, the gas line, the steam line and the detergent line.

These serve to let the individual media into the pipe via the pipe attachment or to shut off the pipes. Thus, the sequence of Medienbeaufschlagung and be controlled according to the purification levels. The check valves can be used with open lines to prevent media from undesirably flowing into other supply lines.

With the development according to claim 9, a branch is arranged on the pipe attachment to a

Exterior cleaning device leads. Thus, the appropriate media for outdoor cleaning, especially of hoses, usable.

According to claim 10, the exterior cleaning device is an open or closed container in which different cleaning stages are arranged. In particular, hoses can therefore also be cleaned externally using the same media. Possible cleaning steps of the external cleaning device are prewashing stage, brush cleaning, high-pressure cleaning, rinsing stage, drying, disinfection, impregnation or labeling. The purification levels represent options as needed are feasible. For this purpose, the exterior cleaning device has the respectively required technical prerequisites for carrying out the purification steps. As a result, exterior cleaning devices with different technical equipment can be realized. With the external cleaning, disinfection, impregnation and labeling of the hoses are additionally possible.

According to claim 11, the cleaning and disinfection system includes a control unit which controls the adjustable shut-off devices, wherein the control unit for the program sequence is programmable. Thus, according to the respective requirement cleaning programs including disinfection can be created and stored. The various cleaning programs can be called up for cleaning as needed. With the programmable control unit, the operation can be significantly simplified.

According to the embodiment according to claim 12, the pipe attachment is connected to an insertable into the tube probe. The probe may in the simplest case be an open end of the probe lead. Likewise, one or more outlets for the media can be arranged in the probe. One or more channels may be provided for different media in the probe line. The probe allows longer pipes, especially larger diameters, to be cleaned and disinfected. With the probe impurity accumulations can be treated particularly effectively. This includes disinfecting e.g. with cold mist. Likewise, by moving in the tube each area can receive an internal treatment. In addition, an optic can be arranged in the probe, which allows a viewing of the tube.

The method claim 13 discloses that a pressure jet aerosol mist in a pipe, hose or container shine. Due to the fine misting of a

Disinfectants can this as fog jet far into narrow and long pipes, etc. introduced and take effect there.

In the method claim 14, a cleaning and disinfection method for pipes, hoses and containers is described that a treatment with liquid, optionally with detergent additive and pulsed pressurization by steam, gas, aerosol, foam, sound, by generating cavitation and rinsing and Blowing to remove the treatment agent as well as drying and / or impregnation comprises. These purification or disinfection stages can be carried out partly at the same time as well as in different succession succession as well as by omission or repetition of individual stages. This can be done on the degree of contamination and the cleanliness or hygiene requirements tailored cleaning or disinfection.

• Fig. 1 einen Rohrvorsatz im Schnitt mit Anordnung der Anschlüsse,
• Fig. 2 ein Schema des Reinigungs- und Desinfektionssystems für Rohre und Schläuche,
• Fig. 3 einen Rohrvorsatz im Schnitt mit Sonde,
• Fig. 4 die Reinigungsstufen für die Außenreinigung und
• Fig. 5 eine schematische Darstellung einer

Several embodiments of the invention are illustrated in the drawings and will be described in more detail below. Show it:

• Fig. 1 a pipe header in section with arrangement of the connections,
• Fig. 2 a diagram of the cleaning and disinfection system for pipes and hoses,
• Fig. 3 a pipe attachment in section with probe,
• Fig. 4 the cleaning steps for the exterior cleaning and
• Fig. 5 a schematic representation of a

Embodiment of the exterior cleaning device in section.

In the following, the cleaning and disinfection system for pipes and hoses will be described in more detail: FIG. 1 shows the pipe to be cleaned and disinfected 1 that is connected by an adapter 8 with the pipe attachment 2. On the opposite side of the pipe 1 is an aerosol mist generator 3a (eg

Ultraschallvernebler or evaporator) in combination with a compressed air jet device 3b arranged. Aerosol mist generator 3a and air jet device 3b are schematically shown in the diagram. They are summarized here in a fine mist nozzle 3.

The fine mist nozzle 3 is arranged so that the mist 4 radiates into the pipe 1. The fine mist nozzle 3 has a compressed-air connection 27 for the atomization of the treatment agent and a liquid connection 28, through which the treatment agent is supplied to the fine-mist nozzle 3 at a pressure of 0.01 to 500 bar. The nozzle 3 is here by an adjustable shut-off device 14, e.g. a slide with a large passage cross-section, from the pipe attachment 2 or pipe 1 separable. The large passage cross-section allows an unimpeded passage of the mist jet 4 as far as possible into the tube 1.

Furthermore, a purge line 5 is connected to the pipe attachment 2. Likewise, a further media connection 29 is connected to the pipe attachment 2. This further media connection 29 can be, for example, a gas line, a compressed air line, steam line or a foam feed. The additional media port 29 and the purge line 5 need not, as shown, be arranged at right angles to the pipe 1 on the pipe attachment 2. More advantageous are connections in the pipe direction, in particular the compressed air line, such. at a trouser piece.

FIG. 2 shows the wiring diagram for the cleaning and disinfection system. Starting from the illustration in FIG. 1 is the tube attachment 2 with the purge line 5 and the fine mist nozzle 3 including shut-off 14th connected. Here, to the left of the pipe attachment 2, the pipe 1 to be cleaned or the hose 1 to be cleaned are shown. In the pipe attachment 2, a compressed air source or line 7, a gas source or line 11 and a steam source or steam line 12 are connected to the pipe attachment 2 as further media connections. Likewise, with the pipe attachment 2, a foam generator, not shown, be connected for a foam feed.

The compressed air source 7, gas source 11 and steam source 12 may both be part of the system as well as provided by external sources.

To each port is a shut-off device 14, e.g. Valve or slider and a check valve 15 is provided. The shut-off devices 14 may be manually operated valves 14 or by e.g. a control unit 25 switched solenoid valves 14 be. By the control valves 14, the influx of media, such as gas, steam, compressed air, can be controlled in the pipe 1 to be cleaned. The check valves 15 prevent media from flowing back into other pressureless media lines 7, 11, 12 and the purge line 5. The arrangement of the individual lines 7, 11, 12 is irrelevant. The lines 7, 11, 12 may also be connected via a common connection with the pipe attachment 2. From the pipe attachment 2 here is still a connection provided with shut-off device 14 for the exterior cleaning 16. Furthermore, the purge line 5 is brought to the pipe attachment 2.

The purge line 5 is a liquid line 6 for water and possibly detergent additive. It is separated here by a check valve 15 from the pipe attachment 2 to prevent backflow of other media in the purge line 5. The liquid connection 6 can be separated by a shut-off device 14 from the system. Subsequently, a filter 30 is arranged. After the filter 30, a branch for the filter backwash line 31 is provided, the in turn provided with a shut-off device 14. When the filter 30 is to be backwashed, water flows through the filter backwash line 33 in the reverse direction through the filter 30 and exits at the liquid port 6. Alternatively, a commercially available backflush filter can be installed accordingly.

If the pipe 1 is to be cleaned, the water passes through one or here two metering devices 9, in which liquid or solid cleaning agents or additives from cleaning agent lines 10 or detergent containers 10 are added. Subsequently, the cleaning fluid flows through the purge line 5 in the tube attachment. 2

In a modification of the illustration, the compressed air line 7 can also open directly into the purge line 5. In addition to conventional cleaning agents additives can be supplied, for example, reduce the boiling point of the cleaning liquid to allow cavitation better for cleaning purposes.

The flushing of the pipeline 1 is carried out by filling with the cleaning liquid, e.g. by water with cleaning agents or additives, from the purge line 5. To enhance the cleaning pressure pulses from the compressed air line 7 are introduced into the tube 1. This cavities can be caused, for example. By these pressure pulses or cavitations, e.g. Encrustations and biofilms detached from the wall of the tube 1.

With the compressed air line 7, the liquid can also be blown out. By means of the gas line 11 can also be done eg with ozone cleaning or killing of germs. Likewise, the injection of hot steam can cause germ killing or cause thermoelectric voltages, which can help solve incrustations. Furthermore, a sound source 13 is arranged in the pipe attachment 2 here. This can emit sound waves in different frequency ranges, eg ultrasound or infrasound, which can be used for cleaning purposes. By the sound source 13 local cavitations can be triggered, solve the impurities. Of course, other connections for other media can be provided directly or indirectly on the tube attachment 2.

In FIG. 3 the tube attachment 2 is connected to a probe 26 inserted into the tube 1. The representation together with the associated description otherwise corresponds FIG. 1 , The probe 26 itself is in the simplest case an open end of the probe line 26. Likewise, in the probe 26, one or more outlets for the media, such as steam, gas, compressed air, cleaning liquid with different pressures and mist 4 may be arranged. Thus, z. B. the mist steel 4 are generated directly in the probe 26. By the probe 26 corresponding additives for cleaning, disinfection, care, etc. can also be applied. The nozzles can be directed in different directions, in particular on the pipe wall. In the probe line 26, one or more channels (not shown) may be provided for different media. By the probe 26 longer pipes, especially larger diameter can be cleaned and disinfected. In particular, local pressure surges can be effectively realized by compressed air supply by means of probe 26 in the tube filled with cleaning liquid 1. For this purpose, an arrangement of a controllable shut-off device (not shown) in the probe 26 is expedient. Likewise, a sonic source 13 for ultrasound or infrasound may be arranged in the probe 26. In addition, for example, by pressure surges and / or ultrasound or infrasound cavitation to the solution be triggered by impurities. With the probe 26 impurity accumulations can be treated particularly effectively. By advancing the probe 26 in the tube 1, each area can receive an internal treatment. In addition, an optical system (not shown) can be arranged in the probe 26, which allows an inner viewing of the tube 1.

FIG. 4 shows a possible sequence of cleaning steps for the external cleaning of hoses. In the pre-washing stage 17, the soaking of the impurity takes place, with 18 firmly adhering dirt is mechanically loosened by the subsequent brush cleaning. Afterwards, a high-pressure cleaning can solve 19 further stuck dirt particles. In the rinsing stage 20, the dirt particles with the cleaning liquid or rinsing liquid are removed from the exterior cleaning device 16. This is followed by drying 21, for example with hot air. The disinfection 22 can be done by a cold mist. An impregnation 23 and a marking 24, eg plaque or imprint, to prove the treatment carried out follow here.

The stages may vary in order, individual stages, e.g. Rinse stage, can be repeated several times or even omitted. The individual steps can be realized in the exterior cleaning device 16 by separate sections. It is also possible that the hose 1 passes through the outer cleaning device 16 several times, in which case different cleaning stages are then implemented in each case. Likewise, a combination of both previously described variants is possible, e.g. by pre-washing and brush cleaning take place in parallel.

In FIG. 5 a variant embodiment of the exterior cleaning device 16 for hoses 1 is shown. The tube 1 is here by transport rollers 32 through the External cleaning device 16 moves. In this case, the illustrated exterior cleaning device 16 has a trough-shaped design which causes cleaning fluid in the exterior cleaning device 16 remains. By sluice or Absteifvorrichtungen 33, such as rubber bristles, it is additionally ensured that the liquid remains in the exterior cleaning device 16. In the exterior cleaning device 16 rotating or fixed cleaning brushes 34 are arranged, which support the cleaning by mechanical action. For example, cleaning or rinsing liquid is introduced into the exterior cleaning device 16 through the line connection 35. Through this line connection 35 or other lines also steam, cold mist, etc. can be introduced. Advantageously, the direct arrangement of the fine mist nozzle 3 in the working space of the exterior cleaning device 16. Likewise, lines and nozzles for high-pressure cleaning (not shown) may be arranged. At the lowest point, a bottom outlet 36 is arranged in order to be able to empty the working space of the exterior cleaning device 16. This is just like the other lines, connections, etc. provided with a shut-off device (not shown).

With the illustrated embodiment of
Exterior cleaning device 16 may include multiple cleaning stages, as in FIG FIG. 4 shown to be realized one after the other. For this purpose, the hose 1 can be moved accordingly by the transport rollers 32 or hose drums. For individual cleaning stages, it may be advantageous for the hose 1 to be under pressure, which can be easily achieved by filling the hose 1.

Compilation of the reference numerals

1 -

Pipe, pipeline, hose, tank

2 -

pipe intent

3 -

Aerosol nebulizer (3a) with pressure jet device (3b), nebulizer nozzle, fine nebula nozzle, cold nebulizer nozzle, two-component nozzle, nozzle, high-pressure nozzle,

4 -

Mist jet, aerosol mist jet, fog, aerosol mist pressure jet

5 -

flushing line

6 -

liquid port

7 -

Compressed air connection, compressed air source, compressed air line

8th -

adapter

9 -

dosing

10 -

Detergent line, detergent container, additive feed

11 -

Gas line, gas source

12 -

Steam line, steam source

13 -

sound source

14 -

adjustable shut-off device, slide, valve, solenoid valve

15 -

Check valve, check valve

16 -

Exterior cleaning device

17 -

prewash

18 -

brush cleaning

19 -

High Pressure Cleaning

20 -

rinsing

21 -

desiccation

22 -

disinfection

23 -

Impregnate

24 -

Labelling

25 -

control unit

26 -

Probe, probe lead

27 -

Compressed air connection of the nozzle

28 -

Fluid connection of the nozzle

29 -

additional media connections

30 -

filter

31 -

Filterrückspülleitung

32 -

Transport rollers, hose reels

33 -

Locks, stiffening device

34 -

cleaning brushes

35 -

line connection

36 -

Grundablass

Claims (14)

Cleaning and disinfection system for pipes, hoses and containers for the removal of deposits, caking biofilms and other contaminants, characterized
in that a tube (1) is connected to a tube attachment (2) and in the tube attachment (2) an aerosol mist generator (3a) with a pressure jet device (3b) is arranged such that a mist jet (4) generated therefrom is introduced into the tube (1) is directed into and further in the pipe attachment (2) a purge line (5) with liquid connection (6) and a compressed air connection (7) are arranged. Disinfection device for pipes, hoses and containers,
characterized,
in that an aerosol mist generator (3a) is coupled to a pressure jet device (3b) and the pressure jet device (3b) is arranged on a pipe (1) or container (1) to be disinfected such that the aerosol mist pressure jet (4 ) is directed into the tube (1) or the container (1). Cleaning and disinfection system according to claim 1 or disinfection device according to claim 2, characterized in that
in that the aerosol mist generator (3a) and the pressure jet device (3b) are designed as a pressure mist nozzle (3). Disinfecting device according to claim 2 or 3, characterized
in that a disinfectant detector is arranged on the end of the tube (1) opposite the pressure nozzle (3). Cleaning and disinfection system or disinfection device according to claim 1 or 3 and 4, characterized
that the tube (1) is connected by an adapter (8) to the tube header (2) and the tube attachment (2) with different adapters (8) can be connected. Cleaning and disinfecting system according to claims 1, 3 and 5,
characterized,
in that at least one metering unit (9) with a cleaning agent supply line (10) is arranged in the flushing line (5). Cleaning and disinfection system according to claim 1, 3, 5 and 6,
characterized,
in that a gas line (11) and / or a steam line (12) and / or a sound source (13) and / or a foam generator are arranged in the pipe attachment (2). Cleaning and disinfecting system according to claims 1, 3 and 5 to 7,
characterized,
in that the pressure mist nozzle (3), the flushing line (5), the liquid connection (6), the compressed air connection (7), the gas line (11), the steam line (12), the foam generator and the cleaning agent line (10) are each adjustable Shut-off devices (14) and / or check valves (15) are arranged. Cleaning and disinfecting system according to claims 1, 3 and 5 to 8,
characterized,
that in the pipe attachment (2) a branch is arranged, which leads to an external cleaning device (16). Cleaning and disinfecting system according to claims 1, 3 and 5 to 9,
characterized,
in that the external cleaning device (16) is an open or closed container and in the container devices for the realization of various cleaning stages, such as pre-washing step (17), brush cleaning (18), high-pressure cleaning (19), rinsing step (20), drying (21), disinfection (22), impregnation (23) and marking (24) are arranged. Cleaning and disinfecting system according to claims 1, 3 and 5 to 10,
characterized,
in that the adjustable shut-off devices (14) can be controlled by a control unit (25) and in the control unit (25) a program sequence with an operating unit or by a computer is programmable, this program can be stored and retrieved in the memory of the control unit (25). Cleaning and disinfection system according to claims 1, 3 and 5 to 11,
characterized,
in that the pipe attachment (2) is connected to a probe (26) which can be introduced into the pipe (1). Disinfection process for pipes, hoses and containers,
characterized,
that a pressure jet of 0.1 bar to 50 bar an aerosol mist (4) into a pipe to be disinfected (1) or container (1) radiates. Cleaning and disinfection procedures for pipes, hoses and containers,
characterized,
that for cleaning and / or disinfecting a treatment with liquid, optionally with detergent additive and pulsed pressurization, by steam, gas, aerosol, foam, sonication, by generating cavitation and rinsing and blowing to remove the treatment agent as well as drying and / or Impregnation takes place.

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