EP3936242B1 - Procédé et système de nettoyage permettant de nettoyer un respirateur - Google Patents

Procédé et système de nettoyage permettant de nettoyer un respirateur Download PDF

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Publication number
EP3936242B1
EP3936242B1 EP21183851.1A EP21183851A EP3936242B1 EP 3936242 B1 EP3936242 B1 EP 3936242B1 EP 21183851 A EP21183851 A EP 21183851A EP 3936242 B1 EP3936242 B1 EP 3936242B1
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EP
European Patent Office
Prior art keywords
cleaning
pressure
gas
outlet opening
compressed gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21183851.1A
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German (de)
English (en)
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EP3936242A1 (fr
Inventor
Bruno Gaus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meiko Maschinenbau GmbH and Co KG
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Meiko Maschinenbau GmbH and Co KG
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Publication of EP3936242A1 publication Critical patent/EP3936242A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0322—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid in combination with a plug, e.g. inflatable mole, to isolate a part of the tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0328—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid by purging the pipe with a gas or a mixture of gas and liquid

Definitions

  • the invention relates to a method and a cleaning system for cleaning breathing apparatus.
  • Methods and cleaning systems of the type mentioned can be used in general to clean breathing apparatus or components thereof, for example breathing apparatus for rescue workers such as fire departments, technical aid organizations or paramedics, breathing apparatus for divers or generally people in hostile or critical work environments, as well as for armed forces and security forces such as police officers .
  • the proposed devices and methods can also be used for breathing devices in the medical field, for example breathing masks for oxygen supply and operations. Other areas of application are also conceivable.
  • Breathing devices such as respiratory masks or regulators
  • breathing devices are usually part of the personal protective equipment of rescue workers, armed forces or security forces, for example.
  • a large number of breathing devices for different purposes are known from the prior art.
  • rescue workers such as fire departments use respiratory masks with filters to remove harmful components from the sucked-in breathing air.
  • a so-called regulator is used, through which the user can be ventilated with a breathing gas, for example compressed air.
  • Regulators which are often also referred to as breathing regulators, generally allow a user to breathe from a compressed gas cylinder or other compressed gas connection and in this way, for example, underwater or in another non-breathable environment or toxic atmosphere.
  • the compressed gas for example compressed air
  • the compressed gas connection is adjusted by the regulator to a pressure prevailing in the user's working environment.
  • the respiratory devices or their components must generally be cleaned, hygienised, dried, checked and, if necessary, repaired and packaged after each use. Cleaning is intended to remove all contamination resulting from use or storage so that the breathing apparatus can be macroscopically clean and hygienically provided, for example for the next steps in reprocessing.
  • the same requirements generally also apply to components of breathing apparatus, such as attachments and accessories for breathing masks, such as filters or regulators.
  • respiratory devices such as respiratory masks and their accessories
  • a washing machine which has a tub with a drum.
  • a shell of the drum has a curvature structure directed towards the inside of the drum, with holes being arranged in its corner points on edge contours of the curvature directed towards the outside of the drum.
  • a holding system for respiratory masks in a laundry treatment machine is known.
  • the holding system has a support bracket which is arranged to rotate in a drum of the laundry treatment machine and to which the respiratory masks can be connected.
  • Clothes hangers are used, which include flexible air outlet nozzles.
  • the clothes hangers are each attached to a swivel device. Cleaning breathing apparatus is generally not possible or only possible with difficulty using the devices shown.
  • a device for cleaning respiratory masks comprises a lockable housing and at least one receptacle for at least one respiratory mask arranged in a carrier. Furthermore are a nozzle arrangement and a brush arrangement are provided, whereby a movement of the respiratory masks causes the respiratory masks to be brushed.
  • a nozzle arrangement and a brush arrangement are provided, whereby a movement of the respiratory masks causes the respiratory masks to be brushed.
  • gas-carrying elements such as regulators
  • DE 200 03 744 U1 a device for cleaning, disinfecting and drying respiratory masks is known, which has a support frame with an assigned nozzle system and individual treatment stations. This device is also fundamentally not suitable for cleaning gas-carrying elements and accessories.
  • a cleaning device for compressed air breathing apparatus is known. This has a receiving space limited by a protective grille and rotating nozzle holders. The nozzle holders are located outside the protective grille.
  • the disadvantage of the device shown is that cleaning liquid can penetrate into gas-conducting areas.
  • a receptacle for equipping respiratory masks is provided, in which the respirators are coupled to the receptacle using the breathing apparatus connection. It is further described that a collection device for collecting treatment agents is provided in a cabin of the device, as well as a pump for supplying the treatment agents.
  • US 3,881,503 A discloses an apparatus for washing and decontaminating anesthesia equipment.
  • a nozzle system is provided through which jets of water can be sprayed onto the items to be cleaned under high pressure.
  • a device for cleaning respiratory masks is described.
  • a rotatably mounted tubular frame is provided in a housing, in which the masks to be cleaned are clamped onto holders.
  • the respiratory masks are moved with a rotating movement through a bath of cleaning liquid in a tub.
  • WO 2011/144518 A2 describes a cleaning device for cleaning breathing apparatus.
  • the cleaning device comprises at least one cleaning chamber for accommodating at least one breathing device and at least one fluid device for applying at least one cleaning fluid to the breathing device.
  • the cleaning device further has at least one pressurization device with at least one pressure connection.
  • the pressure connection can be connected to at least one gas-carrying element of the breathing apparatus.
  • the pressurization device is set up to pressurize the gas-carrying element with compressed gas. This design is particularly suitable for preventing moisture from penetrating into gas-carrying elements, as this moisture can freeze during use, for example when expanding compressed air, which could lead to interruptions in a vital breathing air supply.
  • DE 10 2018 204 763 A1 describes a method for cleaning at least one breathing device, the breathing device comprising at least one breathing mask.
  • the method comprises at least one pre-cleaning step, the pre-cleaning step comprising the following sub-steps: a) providing the breathing apparatus in an externally contaminated state; b) providing at least one holder for the breathing mask, the holder having at least one curved sealing surface, c) clamping the breathing mask onto the holder in such a way that at least one sealing lip of the breathing mask rests on the curved sealing surface and closes off an interior of the breathing mask; d) introducing the holder with the breathing mask into a pre-cleaning chamber; and e) applying at least one pre-cleaning fluid to an outside of the breathing mask in the pre-cleaning chamber.
  • the method can include at least one main cleaning step carried out after the pre-cleaning step, which has the following sub-steps: i) releasing the breathing mask from the holder); ii) placing the breathing mask in a main cleaning chamber; and iii) exposure of the breathing mask including one facing the interior Inside of the breathing mask with at least one main cleaning fluid. Also disclosed are a device for cleaning at least one breathing apparatus, a pre-cleaning device and a cleaning system.
  • warning whistles Possible constructions of such warning whistles, which can also be used within the scope of the present invention, are, for example, in DE 1 133 251 B or even in DE 23 51 718 C3 described. In general, these warning whistles are designed to warn a user when the pressure in the breathing apparatus falls below a predetermined minimum. This minimum pressure is usually chosen so that the user can still safely withdraw. A challenge with such designs is that the warning whistle itself usually provides an opening through which cleaning fluid can penetrate into the gas-carrying element.
  • warning whistles generally include at least one valve and at least one signal body, with the valve generally remaining closed as long as the minimum pressure is exceeded.
  • gas such as compressed air
  • the pressurization must generally be carried out with sufficient pressure so that the valve of the warning whistle is securely closed by the pressure so that no cleaning fluid passes through the valve can.
  • this minimum pressure is more than 50 bar, for example 60 bar or even 70 bar. Accordingly, the pressurization usually has to be carried out with a considerable amount of pressure in order to safely close the valve of the warning whistle.
  • such high pressures are usually associated with appropriate safety precautions that are structurally complex.
  • the above-described two-part construction of the warning whistle with the valve and the signal body is usually equipped with at least one cavity, which can fill with cleaning fluid, for example water, during cleaning. If the pressurization is removed after cleaning, the valve of the warning whistle opens in many cases, and cleaning fluid can now pass through the opened valve into other components of the gas-carrying element, for example the breathing system.
  • the warning whistle is also structurally coupled to other components of the gas-carrying element.
  • the warning whistle and at least one pressure measuring device can form a structural unit.
  • This unit can, for example, be completely or partially encapsulated with a rubber protection, which often does not fit tightly against the housing of the unit. Accordingly, during cleaning, cleaning fluid can penetrate into a gap between the rubber protection and the pressure gauge, can reach from there to the outlet opening of the warning whistle and can penetrate via the outlet opening and the valve of the warning whistle into the gas-carrying element, for example into the hose system.
  • the terms “have”, “have”, “comprise” or “include” or any grammatical variations thereof are used in a non-exclusive manner. Accordingly, these terms can refer both to situations in which, in addition to the features introduced by these terms, no further features are present, or to situations in which one or more further features are present.
  • the expression “A has B”, “A includes B”, “A includes B” or “A includes B” can refer to the situation in which, apart from B, no other element is present in A (i.e. to a situation in which A consists exclusively of B), as well as to the situation in which, in addition to B, one or more other elements are present in A, for example element C, elements C and D or even other elements .
  • the terms “at least one” and “one or more” as well as grammatical variations of these terms, when used in connection with one or more elements or features and are intended to express that the element or feature is provided single or multiple times can usually only be used once, for example when the feature or element is introduced for the first time. If the feature or element is subsequently mentioned again, the corresponding term “at least one” or “one or more” is generally no longer used, without limiting the possibility that the feature or element can be provided once or multiple times.
  • breathing apparatus is a broad term which should be given its ordinary and current meaning as understood by those skilled in the art.
  • the term is not limited to a special or adapted meaning.
  • the term can, without limitation, refer in particular to a device which is suitably set up to protect the respiratory tract of a user from harmful influences and/or to apply one or more breathing gases to the respiratory tract of the user.
  • the breathing device can be a device which is set up to completely or partially filter ambient air and/or to provide breathing gas to at least one user.
  • These breathing devices can be complete, ready-to-use breathing devices, or they can also be components thereof, so that there is no conceptual distinction made below between breathing devices and their components.
  • the gas-conducting element can be an element which has at least one hose and/or at least one other type of gas-conducting device with an interior and/or at least one valve, which are generally not allowed to be exposed to cleaning fluid.
  • the gas-carrying element can be an area of the breathing apparatus which is subjected to a pressure above the normal pressure during operation, for example a gas-carrying area of a breathing apparatus above a normal pressure, for example above 1.5 bar, in particular above 2 bar .
  • it can be a breathing gas-carrying area of a regulator, whereby the regulator can basically be a single-stage or a multi-stage regulator.
  • the gas-carrying element can, for example, be part of a first stage and/or a second stage and/or possibly further stages of the regulator or even a complete regulator.
  • the gas-carrying element can be an area between a hose connection and a valve of a regulator, or the gas-carrying element can include such an area.
  • the gas-carrying element can, for example, have at least one hose and/or at least one tube.
  • the gas-carrying element can have at least one completely or partially closed lumen, which can accommodate compressed gas.
  • the at least one gas-carrying element can have at least one connection, for example at least one connection for connecting at least one compressed gas container and/or at least one compressed gas line.
  • the at least one connection can also be connectable to at least one mouthpiece and/or at least one regulator, and/or the regulator and/or the mouthpiece can be part of the gas-carrying element.
  • the at least one connection can also include at least one tool connection, so that, for example, at least one compressed gas gun, for example a compressed air gun, can be connectable to the connection or can also be part of the at least one gas-carrying element.
  • the gas-carrying element can also have, for example, at least one pressure gauge, also referred to as a pressure gauge, or can be connectable to the at least one pressure gauge, for example via the at least one connection.
  • the at least one pressure gauge can, for example, be set up to detect at least one internal pressure, for example the high pressure and/or the medium pressure described in more detail below.
  • the pressure gauge can be designed entirely or partially as a separate component or can also be entirely or partially combined with other components.
  • the at least one warning whistle can also be completely or partially integrated into the at least one pressure gauge and/or combined with the at least one pressure gauge.
  • the respiratory mask can be designed to be convex, forming at least one cavity that is partially closed off by the respiratory mask, the edges of which are formed, for example, by the at least one seal.
  • the respiratory mask can have a preferably completely or partially flexible wall which covers the mouth and nose and optionally other areas of the face such as the eyes.
  • the seal can in particular have at least one sealing lip, which seals the respiratory mask against the face, so that the interior space is formed as a sealed area between the face and the respiratory mask.
  • the respiratory mask can have at least one fixation for attachment to the user's head, for example at least one strap, at least one fixation band or at least one attachment which consists of several bands and is often referred to as a strap or spider.
  • the breathing mask can, for example, have at least one opening and can, for example, be set up to enable a supply of air or breathing gas.
  • the breathing mask can have at least one thread for connecting a breathing gas supply.
  • the respiratory mask can have, for example, at least one exhalation valve.
  • the respiratory mask can, for example, be made entirely or partially from a flexible material, in particular from at least one elastomeric material, for example rubber and/or silicone.
  • the breathing apparatus can also have one or more small parts, which can be accommodated, for example, in at least one small parts basket of the cleaning basket.
  • cleaning device is a broad term that should be given its ordinary and common meaning as understood by those skilled in the art.
  • the term is not limited to a special or adapted meaning.
  • the term can, without limitation, refer in particular to a device which is set up to free the items to be cleaned from adhering macroscopic or microscopic contaminants or to at least partially eliminate such contaminants.
  • a disinfectant effect can optionally be exerted.
  • the cleaning device can, as will be explained in more detail below, be designed in particular as a dishwasher, in particular as a dishwasher.
  • the cleaning chamber can be set up to accommodate at least one cleaning basket.
  • the cleaning chamber can, for example, have at least one basket holder, for example at least one rail into which the cleaning basket can be inserted, and / or at least one holding device or transport device, by means of which the basket can be moved into the cleaning chamber, out of the cleaning chamber or through the Cleaning chamber can be transported through.
  • the cleaning device can also have at least one loading device for applying the at least one cleaning fluid to the breathing apparatus.
  • the application device can thus be designed in particular to apply the at least one cleaning fluid to the breathing apparatus in the cleaning chamber.
  • the application device can, for example, have at least one tank for holding the at least one cleaning fluid and, for example, one or more nozzles.
  • the application device can, for example, have at least two nozzle arms accommodated in the cleaning chamber.
  • the application device can have further elements, such as one or more pumps for transporting the cleaning fluid to the at least one nozzle and one or more pipes.
  • the application device can in particular be controlled by at least one control of the cleaning device.
  • a nozzle system and a line system for supplying cleaning liquid from a tank can be provided, as well as at least one corresponding pump.
  • at least one nozzle system can be supplied directly from a supply line without the need for a pump.
  • the cleaning device can in particular be designed as a cleaning device with two tanks, a washing tank and a rinsing tank.
  • the application device can in particular comprise a washing system and a rinsing system, wherein, for example, the washing system can have the washing tank and a washing nozzle system as well as a washing line system and a washing pump, for example a circulation pump.
  • cleaning fluid as used herein is a broad term and should be given its ordinary and common meaning as understood by those skilled in the art. The term is not limited to a special or adapted meaning.
  • the term can, without limitation, refer in particular to a liquid which can have a cleaning effect when it comes into contact with the items to be cleaned. Accordingly, the term “cleaning fluid” will also be used below instead of the term “cleaning fluid” without restricting the use of other fluid media.
  • the cleaning liquid can comprise an aqueous liquid, for example water and/or water with one or more additives, for example with one or more cleaning concentrates and/or rinse aids and/or disinfectants.
  • the breathing apparatus can be supplied with cleaning fluid in such a way that a single cleaning fluid is used or in such a way that a combination of several cleaning fluids is used. If several cleaning liquids are provided, the application of the different cleaning liquids can take place simultaneously or sequentially.
  • the cleaning basket with the breathing apparatus can remain stationary within a cleaning chamber of a cleaning device and can be successively supplied with the various cleaning liquids and/or cleaning fluids.
  • the cleaning fluid may in particular comprise at least one cleaning fluid selected from the group consisting of: an aqueous cleaning fluid; a cleaning fluid with at least one cleaning solution; a cleaning fluid with at least one rinse aid; a cleaning fluid with at least one disinfectant; a rinse fluid; demineralized water; a heated cleaning fluid, in particular a cleaning fluid heated to a temperature of 30 ° C to 70 ° C and particularly preferably 60 ° C.
  • “Applying cleaning fluid” can generally be understood to mean any bringing into contact of items to be cleaned, in this case the breathing apparatus, with which at least one cleaning fluid is used, in particular external contact. This can be done, for example, in the form of direct application, for example by spraying, dripping, irradiating or a combination of the mentioned and/or other direct exposure types, in which the cleaning fluid directly hits the item to be cleaned, for example the breathing apparatus and/or the breathing mask.
  • This configuration of the application can take place in particular with a fixed cleaning chamber. Alternatively or additionally, the application can also take place in such a way that the cleaning chamber is completely or partially filled with cleaning fluid, so that the items to be cleaned in the cleaning chamber come into contact with the cleaning fluid at least in one position of the cleaning chamber.
  • This design of the application can be used in particular in a design of the cleaning chamber as a movable cleaning chamber, for example in the form of a drum. Combinations of the above-mentioned types of exposure and/or other types of exposure are also possible.
  • the application of the cleaning fluid can be carried out in a simple operation in that the cleaning fluid only acts once on the items to be cleaned, for example the breathing apparatus and/or the breathing mask.
  • cleaning can also be carried out in circulation mode by applying cleaning fluid several times to the items to be cleaned.
  • circulation operations and circulation circuits are known, for example, from conventional dishwashers.
  • the cleaning device can, for example, be set up to carry out at least one cleaning program by means of the application device, for example controlled by at least one control of the cleaning device, in which the items to be cleaned, for example the at least one cleaning basket with the breathing device, are accommodated stationarily in the cleaning chamber and one after the other in one or several cleaning steps of the cleaning program are applied in different ways with cleaning fluid, for example initially in at least one washing step with the at least one washing fluid and in at least one final rinsing step with the at least one final rinsing fluid.
  • at least one drying step can be provided, which can, for example, be downstream of the application of the cleaning fluid in the at least one cleaning chamber when the items to be cleaned are stationary.
  • the cleaning device can be designed in particular as a program machine.
  • the cleaning device can also be designed, for example, as a transport cleaning device, in which the cleaning basket with the breathing device is transported through one or more cleaning zones.
  • the term "tank” as used herein is a broad term which should be given its ordinary and common meaning as understood by those skilled in the art.
  • the Term is not limited to a special or adapted meaning.
  • the term can, without limitation, refer in particular to a completely or partially closed container which is set up to hold at least one fluid, in particular at least one liquid.
  • the at least one tank can have, for example, at least one washing tank.
  • This at least one washing tank can, for example, be arranged in a bottom of the cleaning chamber or can also be fluidly connected to a bottom of the cleaning chamber, so that cleaning fluid can flow from the cleaning chamber into the washing tank.
  • the washing tank can be separated from the cleaning chamber by at least one sieve.
  • the at least one tank can also further comprise one or more further tanks.
  • the at least one tank can have at least one rinsing tank, which can, for example, be designed separately from the washing tank.
  • at least one final rinse tank for example, at least one final rinse fluid, also referred to as a final rinse fluid, can be prepared, for example tempered, while a washing step is still taking place in the cleaning chamber.
  • the rinsing tank can, for example, include at least one boiler.
  • step c) the warning whistle is flushed with at least one compressed gas.
  • This step is carried out at least partially simultaneously, i.e. at least partially overlapping in time or completely simultaneously, with the application of the at least one cleaning fluid to the breathing apparatus. Furthermore, the flushing takes place in such a way that the compressed gas flows out through at least one outlet opening of the warning whistle, so that penetration of cleaning fluid through the outlet opening is at least largely prevented by the outflowing compressed gas.
  • the flushing takes place in such a way that the compressed gas flows out through at least one outlet opening of the warning whistle, so that cleaning fluid does not penetrate is at least largely prevented by the outflowing compressed gas through the outlet opening.
  • the compressed gas controlled for example by the valve of the warning whistle, can flow into the cavity between the valve and the signal body and flow out from there through the outlet opening, so that the flow, for example, at least largely prevents the penetration of cleaning fluid.
  • a pressure, in particular a static pressure, of the compressed gas at the outlet opening can exceed 1 bar, in particular exceed 1.5 bar, particularly preferably at least 2 bar, for example 2 to 6 bar.
  • the warning whistle can be flushed with the at least one compressed gas in various ways.
  • at least one interior of the gas-carrying element can optionally be pressurized during the application of the at least one cleaning fluid, for example with the at least one compressed gas.
  • this can be a high-pressure area or a medium-pressure area of the gas-carrying element.
  • at least a portion of this at least one compressed gas can be branched off as a stream in order to flush the warning whistle.
  • the valve of the warning whistle as stated above, can either be permeable to this flow or regulate the flow in such a way that part of the compressed gas can be diverted.
  • a separate flushing can also take place.
  • the compressed gas that is used to flush the warning whistle can therefore, for example, be independent of the compressed gas with which the interior of the gas-carrying element can optionally be applied during the application of the at least one cleaning fluid.
  • the valve of the warning whistle which can regulate the flushing of the warning whistle, can be controlled by pressure in the at least one interior space.
  • the procedure may further include the following step: d) covering the outlet opening of the warning whistle with at least one covering element, step d) being carried out at least partially before steps b) and c), wherein during the covering the outlet opening is at least partially closed, so that Compressed gas can still flow out through the at least partially covered outlet opening.
  • the covering can in particular be carried out in such a way that the at least one opening, in the present case the at least one outlet opening of the warning whistle, is at least partially closed for the passage of at least one medium in at least one passage direction.
  • the covering can take place in the form of a valve, so that, for example, media can still pass through completely or partially in one direction, but is prevented in an opposite direction.
  • the covering should be carried out in such a way that the at least one compressed gas can at least partially flow out of the covered outlet opening, i.e. can emerge from the warning whistle, so that the flushing in step c) is not completely interrupted. This can be done in different ways.
  • the warning whistle is set up to emit a warning tone when the gas-carrying element is pressurized with a pressure that falls below a minimum pressure.
  • the warning whistle can generally emit the warning tone when pressure is below the minimum pressure or in at least one pressure interval that is below the minimum pressure.
  • the minimum pressure of the warning whistle can be, for example, at least 50 bar, in particular at least 100 bar, in particular in a range from 100 bar to 300 bar.
  • the compressed gas can have a flushing pressure that is below the minimum pressure, particularly during flushing in step c). Accordingly, pressurization with high pressure in particular is not necessary.
  • the flushing pressure can be in a range from 1 bar to 12 bar.
  • the at least one interior of the gas-carrying element can also be subjected to at least one pressure, for example as in WO 2011/144518 A2 described.
  • the outlet opening can be arranged directly or indirectly on the signal body.
  • the signal body can have at least one pipe opening, which can function as an outlet opening.
  • the outlet opening can also be connected to the signal body, for example, through at least one flow channel.
  • the method includes providing the at least one breathing device.
  • This provision in step a) can in particular include introducing the breathing apparatus into at least one cleaning device, in particular into at least one cleaning chamber of the at least one cleaning device.
  • the provision can include introducing the breathing apparatus into at least one cleaning basket of the cleaning device.
  • step a) can include connecting the at least one gas-carrying element of the breathing apparatus to at least one pressure connection of the cleaning basket.
  • the warning whistle can be flushed with the compressed gas via the pressure connection and via at least one pressurization device of the cleaning device.
  • pressure port is a broad term that should be given its ordinary and common meaning as understood by those skilled in the art.
  • the term is not limited to a special or adapted meaning.
  • the term can, without limitation, refer in particular to a basically any connecting element to which the at least one gas-carrying element can be connected in order to provide compressed gas from the pressurization device to the at least one gas-carrying element.
  • a connection between the pressure connection and the gas-carrying element is generally understood to mean a fluidic connection, in particular a gas connection, so that the pressurized fluid of the pressurization device flows into the gas-carrying element of the breathing apparatus, in particular into an interior of the gas-carrying element and/or in the warning whistle, can be transferred, preferably without a fluid loss and / or pressure loss occurring in this connection.
  • the pressure connection can comprise at least one mechanical connecting element, in particular a positive and/or non-positive connection, so that the breathing apparatus, in particular the gas-carrying element, can be firmly connected to the pressure connection.
  • this can be a screw connection and/or a clamp connection and/or a clamping connection, for which purpose the pressure connection and/or the breathing apparatus can each have at least one mechanical connecting element.
  • this can be a plug connection in the form of a quick coupling and/or a thread, for example a coupling piece for a breathing connection of a regulator.
  • a quick coupling is generally understood to mean a gas-tight and/or liquid-tight plug connection between two fluid-conducting components, which can be mechanically secured by a mechanical fixation that can be produced and released in a simple and quick manner, in particular without using a screw cap, for example by at least a clamping hook and/or a bayonet lock and/or a screw lock, for example a union nut.
  • the connection can in particular be made without tools.
  • the pressure connection can comprise a plurality of fixed or interchangeable adapters for connection to different types of gas-carrying elements.
  • a plurality of different gas-carrying elements can be connected directly or indirectly to the pressure connection, for example different types and/or different types of gas-carrying elements, for example different makes or manufacturers.
  • an adapter set with a plurality of different coupling pieces, for example coupling pieces of a quick coupling, and/or threads can be provided for connecting different gas-carrying elements.
  • these can be different quick coupling systems and/or standard threads.
  • the at least one pressure connection can also be designed as a fixed pressure connection for a specific type of connecting element or for a specific type of gas-carrying element.
  • the pressure connection and/or its coupling system are set up in such a way that, on the one hand, no gas can escape if no counterpart is connected, and in this case no other medium, for example cleaning fluid, can enter the gas-carrying element.
  • the pressure connection can be connected or connectable directly or indirectly to the pressurization device.
  • this can be completely or partially integrated into the cleaning basket, for example in the form of at least one compressed gas bottle.
  • there can be a compressed gas line between the integrated pressurization device and the pressure connection in the cleaning basket.
  • at least one valve can be provided in this compressed gas line.
  • the pressurizing device can also, for example, be accommodated entirely or partially in a cleaning device, into the cleaning chamber of which the cleaning basket is introduced, in the form of a pressurizing device integrated into the cleaning device and / or in the form of a connection of the cleaning device, for example to an on-site compressed gas network or on-site Compressed gas line.
  • the cleaning basket can be connectable to the pressurization device via at least one compressed gas line. This compressed gas line can, for example, be connected automatically when the cleaning basket is inserted into the cleaning chamber, as will be described in more detail below.
  • the compressed gas line can also be connected manually, for example manually a corresponding connection on the cleaning basket when the cleaning basket is introduced into the cleaning chamber of the cleaning device.
  • a cleaning system comprising the cleaning basket and the cleaning device, which will be described in more detail below, can therefore also include the at least one compressed gas line which connects the pressurization device and the pressure connection.
  • the compressed gas line can be wholly or partially part of the cleaning basket or can also be wholly or partially part of another part of the cleaning system, for example the cleaning device or as a separate component.
  • pressurizing device is a broad term which should be given its ordinary and common meaning as understood by those skilled in the art.
  • the term is not limited to a special or adapted meaning.
  • the term can, without limitation, refer in particular to a device which is set up to be able to provide a fluid, in particular a gas, at a pressure above normal pressure, for example a pressure of at least 1.5 bar, preferably a pressure of at least 2 bar.
  • the pressurization device is set up to pressurize the gas-carrying element with compressed gas.
  • a compressed gas can generally be understood to mean any gas that has a pressure above normal pressure, i.e. a pressure above 1 bar.
  • this can be a pressure above 1.5 bar, in particular above 2 bar, and particularly preferably above 3 bar.
  • the pressurization device can be set up in such a way that the pressurization with the compressed gas takes place in such a way that all cleaning fluid is kept away from an interior of the breathing apparatus that is pressurized with the compressed gas.
  • the compressed gas can be, for example, compressed air or another gaseous medium with an excess pressure, for example nitrogen, carbon dioxide or the like.
  • an inert gas can be used as compressed gas.
  • the cleaning device can in particular be designed such that the pressurization via the pressurization device takes place during at least one cleaning process, for example during at least one program step of a single-step or multi-step cleaning program.
  • the pressurized gas can be applied at the same time as the cleaning fluid is applied to the breathing apparatus.
  • the pressurization device can in particular have at least one valve, in particular at least one valve, which can be controlled by a control of the cleaning device.
  • the pressure connection can in particular comprise at least one positive and/or non-positive connecting element.
  • This connecting element can be set up to establish a mechanical connection with the gas-carrying element in addition to the gas-tight connection.
  • this at least one connecting element can have at least one quick coupling and/or at least one thread.
  • the pressure connection can be completely or partially integrated into the cleaning basket.
  • the cleaning basket can generally in particular have at least one detachable compressed gas connection to the cleaning device, so that the compressed gas can be provided to the cleaning basket via the cleaning device, for example if the pressurization device is wholly or partially integrated into the cleaning device and / or if the pressurization device is wholly or partially external Pressure connection that is connected to the cleaning device includes.
  • the detachable compressed gas connection between the cleaning basket and the cleaning device can, for example, be closed manually and/or automatically when the cleaning basket is introduced into the cleaning chamber and/or can be decoupled manually or automatically when the cleaning basket is removed from the cleaning chamber.
  • the cleaning basket and the cleaning device can have corresponding compressed gas connecting parts which can be coupled to one another, in particular reversibly.
  • the pressurization device is set up to pressurize the gas-carrying element with compressed gas.
  • a compressed gas is generally understood to mean any gas that has a pressure above normal pressure, i.e. a pressure above 1 bar. In particular, this can be a pressure above 1.5 bar, in particular above 2 bar, and particularly preferably above 3 bar. Particularly preferably, the pressurization device is set up in such a way that the pressurization with the compressed gas takes place in such a way that all cleaning fluid is kept away from an interior of the breathing apparatus that is pressurized with the compressed gas.
  • the compressed gas can be, for example, compressed air or another gaseous medium with an excess pressure, for example nitrogen, carbon dioxide or the like.
  • an inert gas can be used as compressed gas.
  • the cleaning device can in particular be designed such that the pressurization via the pressurization device takes place during at least one cleaning process, for example during at least one program step of a single-step or multi-step cleaning program.
  • the pressurized gas can be applied at the same time as the cleaning fluid is applied to the breathing apparatus.
  • the pressure connection can accordingly be arranged in particular within the cleaning chamber, so that the simultaneous application of compressed gas and cleaning fluid can take place.
  • cleaning system is a broad term which should be given its ordinary and common meaning as understood by those skilled in the art.
  • the term is not limited to a special or adapted meaning.
  • the term can, without limitation, refer in particular to a system, i.e. to a totality of at least two functionally interacting components, which is the Cleaning in the sense of the above definition is used.
  • the pressurization device can have at least one external pressure connection for connection to an external source of compressed gas.
  • this can be a pressure connection for connection to an on-site compressed gas line and/or a compressed gas bottle.
  • the cleaning device can have such a pressure connection for connection to an on-site compressed gas line, for example a compressed air line. In this way, for example, a practically unlimited supply of compressed gas can be used to flush the warning whistle.
  • other configurations of the pressurization device are also possible, alternatively or additionally.
  • the proposed method and the proposed cleaning system have numerous advantages over known methods and systems of the type mentioned.
  • the challenges described above when cleaning breathing apparatus with warning whistles can be addressed.
  • the technical implementation of the method can be implemented comparatively easily, for example by flushing using an existing pressure connection and/or by providing the outlet opening of the warning whistle with a splash guard as a cover during cleaning.
  • the cover element in particular the splash protection, can comprise, for example, an elastic sealing element.
  • the elasticity can help the sealing element to adapt to different external geometries on the warning whistle.
  • the preferably elastic covering element can adapt well to the outlet opening of the warning whistle in this way, so that the covering effect can be improved in this way.
  • the cover element can be implemented in a simple manner.
  • the following elements can be used: a rubber band; a sealing tape with a Velcro fastener; a clamp, for example made of metal and/or plastic, in particular with at least one seal and/or sealing surface.
  • other cover elements can also be used.
  • the coverage can be complete or partial.
  • the cover element generally does not have to completely seal the outlet opening of the warning whistle.
  • Rinsing can also be done easily.
  • purging air can be directed into the gas-carrying element, for example into the hose system.
  • the purge air can fill the gas-carrying element, in particular the hose system, and escape via the outlet opening and the cover element.
  • the flushing can generally ensure that penetration of cleaning fluid into a cavity between the valve and the signal body is completely or at least partially prevented during the cleaning process.
  • the compressed gas can generally escape easily, for example between a rubber protection and a pressure gauge. In general, in this way it can be at least largely ensured that no cleaning fluid can penetrate between the pressure gauge and the rubber protection, which could later reach the outlet opening of the warning whistle and from there into the system via the valve.
  • a further pressure threshold p whistle can exist, with p whistle ⁇ p min , whereby the warning tone is only emitted when the gas-carrying element is pressurized with a pressure p which is in the interval p whistle to p min , for example if at least one of the following conditions is met: p whistle ⁇ p ⁇ p min , p whistle ⁇ p ⁇ p min , p whistle ⁇ p ⁇ p min , order p whistle ⁇ p ⁇ p min .
  • the warning whistle can be flushed in step c) in particular with a flushing pressure p flush , which is smaller than p whistle , i.e. p flush ⁇ p whistle , in particular generally such that no warning tone is emitted.
  • a flushing pressure p flush which is smaller than p whistle , i.e. p flush ⁇ p whistle , in particular generally such that no warning tone is emitted.
  • at least one throttle element can be used to set the flushing pressure fixedly or variably, for example a throttle, a diaphragm or a similar element.
  • the warning whistle can in particular comprise at least one valve and at least one signal body.
  • the valve does not necessarily have to be tightly closed during step c). Accordingly, in comparison, for example, to a method in which the valve must be closed by internal pressurization, flushing in step c) can generally be carried out with a significantly lower pressure than would be the case with static pressurization without flushing. For example, a flushing pressure during flushing can be 2 to 6 bar. Accordingly, the components used and also the safety precautions can generally be designed to be simple, in contrast to, for example, high-pressure or medium-pressure application. In general, the cleaning system can therefore be designed comparatively simply, for example without safety measures regarding high pressure exposure. In addition, as explained above, the use of compressed gas for flushing, for example flushing air, which can flow through a rubber housing of the gas-carrying element, for example, can effectively prevent cleaning fluid from penetrating into this area.
  • FIG. 1 An exemplary embodiment of a cleaning device 110 and a cleaning system 111 according to the invention is shown, which is set up for cleaning at least one breathing device 112.
  • the cleaning system 111 includes the cleaning device 110 and also a cover element 113, which will be described in more detail below.
  • the cleaning device 110 is in Figure 1 shown schematically in sectional view.
  • the cleaning device 110 can be designed as a dishwasher 114, for example.
  • the Cleaning device 110 includes a cleaning chamber 116, for example a rinsing chamber 118.
  • This cleaning chamber 116 can be opened, for example, through a door 120, for example a swing door, a sliding door or a flap, and/or through another opening device.
  • the cleaning chamber 116 can also be designed as a cleaning chamber covered by a hood.
  • the dishwasher 114 is designed, for example, as a front-loading dishwasher. However, other configurations are also possible.
  • the cleaning device 110 has at least one application device 122 for applying one or more cleaning fluids to the breathing device 112 accommodated in the cleaning chamber 116.
  • the application device 122 may include one or more nozzles 124, which may be arranged, for example, above and/or below the breathing apparatus 112 and/or at other locations within the cleaning chamber 116, for example on one or more side walls.
  • the application device 122 as in the illustrated embodiment Figure 1 , a washing nozzle system 126, for example with one or more nozzle arms with a plurality of nozzles 124, which are accommodated below and/or above the breathing devices 112 and are preferably rotatably and/or pivotally mounted.
  • the application device 122 can also include a rinsing nozzle system 128, for example with one or several rinsing nozzle arms, which are preferably rotatably and/or pivotally mounted, which in turn can, for example, be arranged above and/or below the breathing apparatus 112.
  • a rinsing nozzle system 128 for example with one or several rinsing nozzle arms, which are preferably rotatably and/or pivotally mounted, which in turn can, for example, be arranged above and/or below the breathing apparatus 112.
  • other arrangements and/or configurations are also fundamentally possible.
  • one or more heating elements 138 can be provided to heat the cleaning fluid 132 of the washing tank 134 and/or other tanks, for example in the form of a washing tank heater within the washing tank 134.
  • one or more temperature sensors 140 can be provided , for example within the washing tank 134.
  • one or more level sensors 142 can be provided, for example a level sensor 142 as a level sensor of the washing tank 134.
  • the washing tank 134 can be emptied into a drain 148, for example via a drain line 144 and optionally via a drain pump 146.
  • Figure 1 Inlets (not shown) can be provided to the washing tank 134 in order to fill it with cleaning fluid 132.
  • a dosing system 150 can be provided, for example at least one dosing system, in order to introduce one or more additives into the cleaning fluid 132 of the washing tank 134, for example a cleaning concentrate, a rinse aid, a disinfectant or combinations of the mentioned and/or other additives.
  • the cleaning fluid 132 can be applied to the breathing device 112 in particular in a circulation operation by spraying and/or spraying the cleaning fluid 132 from the washing tank 134 via the washing nozzle system 126 onto the breathing devices 112 in order to then drain or drip back into the washing tank 134 in order to to be used again from there.
  • one or more filters for example coarse filters and/or fine filters, can be provided in order to at least partially purify the cleaning fluid 132 of the washing tank 134.
  • the rinsing nozzle system 128 can, for example, be supplied with a further cleaning fluid 154, for example a rinsing liquid, via at least one rinsing line system 152.
  • a further cleaning fluid 154 for example a rinsing liquid
  • the cleaning device 110 is designed as a two-circuit system.
  • the second cleaning fluid 154 is provided from a separate tank, which in the illustrated embodiment is designed as a rinse tank 156, which is designed separately from the washing tank 134.
  • this rinsing tank 156 can be designed as a boiler and can, for example, include a rinsing tank heater 158.
  • a rinse tank heater 158 other types of heating elements can also be provided for the second cleaning fluid 154, for example one or more instantaneous water heaters. The same also applies to the first cleaning fluid 132 in the Washing tank 134.
  • one or more temperature sensors 160 and/or one or more level sensors 162 can be provided in the final rinse tank 156, and the final rinse tank 156 can be charged with cleaning fluid 154, for example fresh water, via one or more inlets 164.
  • the at least one inlet 164 can have one or more valves 166.
  • the inlet 164 can be connected or connectable to an on-site fresh water connection.
  • the actuation of the rinsing nozzle system 128 can preferably take place in simple operation, i.e. not in recirculation mode, so that the rinsing fluid from the rinsing tank 154 only acts on the breathing apparatus 112 once.
  • the loading device 122 can, for example, comprise one or more pressure boosting pumps 172.
  • FIG. 1 illustrated embodiment of the cleaning device 110 represents only one of several different embodiments. Individual or several or even all of the elements described above can also be implemented in a different context.
  • the flushing chamber 118 can, as an alternative or in addition to the rigid, stationary configuration according to Figure 1 , can also be designed to be pivotable and/or rotatable. Furthermore, the fluid circuit shown can also be significantly modified.
  • the cleaning of the breathing apparatus 112 in the cleaning device 110 according to Figure 1 can be done, for example, by first introducing one or more breathing devices 112 into the cleaning chamber 116 by means of at least one cleaning basket 174, which can also be part of the cleaning device 110 and/or the cleaning system 111.
  • the cleaning system 111 can, for example, in addition to the cleaning device 110, also have an assortment 175 of different cleaning baskets 174, which can optionally be introduced into the cleaning chamber 116.
  • Cleaning baskets 174 can be provided in the assortment 175, which are designed differently are, for example, at least one cleaning basket 174 with at least one pressure connection 178, described in more detail below, and at least one cleaning basket 174 without a pressure connection 222. Deviating from that in Figure 1 However, in the cleaning device 110 shown, cleaning devices 110 are also conceivable, in which several cleaning baskets 174 can be introduced into the cleaning chamber 116 at the same time.
  • the cleaning fluid 132 can also remain in the washing tank 134 after a final rinse program of a previous cleaning cycle in order to be used in a subsequent cleaning cycle as cleaning fluid 132 and/or as a component thereof, since rinsing fluid generally has a comparatively high degree of purity even after exposure to the breathing apparatus 112.
  • the rinse fluid 154 preconditioned in this way can then be used the at least one rinsing step is applied to the breathing devices 112 via the rinsing nozzle system 128, so that they are rinsed and/or rinsed clear.
  • at least one drying step can optionally be followed, which can be designed passively, by simply waiting, or which can also be actively supported, for example via at least one drying fan and / or another type of drying device of the cleaning device 110, for example an infrared radiator system and/or a microwave radiation system.
  • the door 120 which was previously optionally preferably locked, can be automatically released and/or opened.
  • the entire program sequence can be controlled, for example, by the controller 176, and several program sequences can also be selected.
  • the gas-carrying element 180 is shown schematically, which is accommodated within the cleaning chamber 116 of the cleaning device 110. Other components of the cleaning device 110 are not shown. For possible configurations you can refer to the Figure 1 and their description are referred to.
  • the gas-carrying element 180 has at least one warning whistle 182.
  • This warning whistle 182 in turn has at least one outlet opening 184.
  • this can be a pipe opening.
  • the outlet opening 184 can in particular be arranged in at least one signal body 186 of the warning whistle 182.
  • this signal body 186 can be a pipe head.
  • the warning whistle 182 can also be used have at least one valve 188. A position of this valve 188 can be controlled, for example, by applying pressure.
  • the cleaning device 110 has at least one pressurization device 190.
  • This pressurization device 190 can in particular have at least one pressure connection 178.
  • at least one connecting element 192 of the gas-carrying element 180 can be coupled to this pressure connection 178.
  • the pressure connection 178 can be arranged in the cleaning basket 174.
  • the pressurization device 190 can have at least one compressed gas supply 196, in particular at least one compressed air supply.
  • This compressed gas supply 196 can in particular have at least one compressed gas hose 198, which can be designed in one piece or in several parts and which can optionally also have one or more couplings 200.
  • the pressurization device 190 can optionally have one or more compressed gas sources 202.
  • the warning whistle 182 is flushed with compressed gas during this application. This can be done, for example, controlled by the controller 176, which controls a program flow. For example, as in Figure 2 shown, the flushing takes place via the connecting element 192, with a flushing pressure p.
  • the warning whistle 182 can, for example, be designed such that it emits a warning tone when pressure is applied below a minimum pressure p min . This is in Figure 2 indicated by the fact that the valve 188 is controlled in its position by the pressure p.
  • the warning tone can be emitted during operation of the breathing apparatus 112 when the pressure is in a pressure interval p whistle to p min , where p whistle represents a lower pressure threshold which is minimally required so that the warning whistle 182 can emit the warning tone.
  • flushing during cleaning can in particular be carried out in such a way that the flushing pressure p of the compressed gas stream 212 is below the lower pressure threshold p whistle , so that no warning tone is emitted during cleaning.
  • another embodiment is also possible, since, for example, when flushing pressures are only slightly above the lower pressure threshold, as a rule only a warning tone that is barely detectable compared to the other flushing noises is generated.
  • the outlet opening 184 can be at least partially closed with the at least one cover element 113, as in Figure 1 indicated. This covering is done in such a way that the compressed gas can still exit through the outlet opening 184 during flushing. Examples are described in more detail below.
  • Figure 3 a schematic flowchart of a possible embodiment of a proposed method for cleaning breathing apparatus 112 is shown.
  • This procedure can be used, for example, with the ones in the Figures 1 and 2 shown devices can be carried out.
  • the procedure includes the in Figure 3 illustrated method steps, which can be carried out, for example, in the order shown.
  • a different order is also possible in principle and/or an order in which two or more of the in Figure 3 The method steps shown are carried out overlapping in time and/or at least partially simultaneously.
  • the method includes providing the breathing apparatus 112 (step a), in Figure 3 designated by reference number 216).
  • This provision 216 can, for example, include introducing 218 of the breathing device 112 into the cleaning device 110, in particular into the at least one cleaning basket 174.
  • step 216 can include the above-described covering of the at least one outlet opening 184 with the at least one cover element 113, in Figure 3 designated with the reference number 220.
  • step 216 may include connecting the at least one gas-carrying element 180 of the breathing apparatus 112 to the pressure connection 178 and/or the pressurization device 190, in Figure 3 designated with the reference number 222.
  • FIG. 3 The method shown involves carrying out at least one cleaning program 224.
  • the breathing apparatus 112 is exposed to the at least one cleaning fluid 132, 154 (process step b), in Figure 3 designated with reference numbers 226 and 228).
  • the cleaning program can have at least one washing step 226 and optionally at least one rinsing step 228, as described above.
  • the cleaning program 224 can optionally have at least one drying step 230.
  • this includes Figure 3 shown method, as stated above, flushing the at least one warning whistle 182 with the at least one compressed gas (method step c), in Figure 3 designated by reference number 232).
  • This flushing 232 occurs at least partially simultaneously with one or both of the method steps 226 and 228.
  • step 232 may start before steps 226 and/or 228 are started and end after steps 226 and 228 are completed.
  • step 232 can also extend at least partially over the duration of the drying step 230, for example until the end of the drying step 230 or even beyond.
  • the at least one outlet opening 184 may optionally be covered during cleaning, as explained in step 220.
  • the at least one cover element 113 can be used for this.
  • FIGs 4A , 4B , 5A , 5B and 5C Various configurations are shown. However, other configurations are also possible.
  • the figures each show an example of a gas-carrying element 180 of a breathing apparatus 112 in a partial representation.
  • a warning whistle 182 can be seen, which has at least one outlet opening 184.
  • the warning whistle 182 can, as shown in the figures, be coupled to at least one pressure gauge 236 and/or integrated into at least one pressure gauge 236.
  • This integrated device, comprising the pressure gauge 236 and the warning whistle 182 can, for example, be completely or partially covered by at least one rubber sleeve, which is open in the area of the outlet opening 184.
  • FIGS. 4A and 4B An embodiment is shown in perspective views, in which the cover element 113 is designed in the form of a flexible clip 238, which can, for example, be made entirely or partially from plastic and/or metal.
  • FIGS. 5A , 5B and 5C A further embodiment of covering the outlet opening 184 is shown in perspective views.
  • the cover element 113 is designed as a sealing tape 248 as an example.
  • the cover element 113 is again shown separately from the gas-conducting element 180, analogous to Figure 4A
  • the cover element 113 covers the warning whistle 182, analogous to Figure 4B .
  • a perspective view shows a cleaning basket 174, in which breathing apparatus 112 is accommodated.
  • the breathing apparatus 112 includes a carrying frame 250 and a compressed gas bottle 252 with a gas-carrying element 180 analogous to Figure 5B , with the outlet opening 184 of the warning whistle 182 closed by the cover element 113.
  • the compressed gas bottle 252 can itself be used as a pressurizing device 190 for flushing the warning whistle 182, or an additional pressure connection, not shown, can be used, analogous to Figure 1 or Figure 2 .
  • the cleaning chamber 174 can be introduced into a corresponding cleaning device 110, for example.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Claims (15)

  1. Procédé permettant de nettoyer un respirateur (112), comprenant les étapes suivantes consistant à :
    a) fournir le respirateur (112), dans lequel le respirateur (112) présente au moins un élément de guidage de gaz (180) muni d'au moins un sifflet d'alerte (182), le sifflet d'alerte (182) étant conçu pour émettre une alerte sonore en cas de mise sous pression de l'élément de guidage de gaz (180) avec au moins une pression qui est inférieure à une pression minimale ;
    b) soumettre le respirateur (112) à au moins un fluide de nettoyage (132, 154) ; et
    c) rincer le sifflet d'alerte (182) avec au moins un gaz comprimé, dans lequel l'étape c) est effectuée au moins partiellement en même temps que l'étape b), et dans lequel le rinçage est effectué de telle sorte que le gaz comprimé s'échappe à travers au moins un orifice de sortie (184) du sifflet d'alerte (182) de sorte qu'une entrée de fluide de nettoyage (132, 154) à travers l'orifice de sortie (184) est au moins substantiellement empêchée par le gaz comprimé qui s'échappe.
  2. Procédé selon la revendication précédente, comprenant en outre les étapes consistant à :
    d) recouvrir l'orifice de sortie (184) du sifflet d'alerte (182) par au moins un élément de recouvrement (113), dans lequel l'étape d) est effectuée au moins partiellement avant les étapes b) et c), dans lequel, lors du recouvrement, l'orifice de sortie (184) est fermé au moins partiellement de sorte que le gaz comprimé peut toujours s'échapper à travers l'orifice de sortie (184) au moins partiellement recouvert.
  3. Procédé selon la revendication précédente, dans lequel l'élément de recouvrement (113) est configuré de manière flexible, dans lequel à l'étape c), le gaz comprimé qui s'échappe écarte l'élément de recouvrement (113) au moins partiellement de l'orifice de sortie (184) .
  4. Procédé selon la revendication précédente, dans lequel l'élément de recouvrement (113) est posé sur l'orifice de sortie (184) sous forme de soupape flexible.
  5. Procédé selon l'une quelconque des trois revendications précédentes, dans lequel l'élément de recouvrement (113) présente des propriétés élastiques.
  6. Procédé selon l'une quelconque des quatre revendications précédentes, dans lequel l'élément de recouvrement (113) entoure le sifflet d'alerte (182) au moins partiellement.
  7. Procédé selon l'une quelconque des cinq revendications précédentes, dans lequel l'élément de recouvrement (113) présente au moins un élément qui est sélectionné dans le groupe comprenant : une bande élastique ; une bande d'étanchéité à fermeture autoagrippante ; une agrafe (238) ; une agrafe munie d'au moins un élément d'étanchéité.
  8. Procédé selon l'une quelconque des revendications précédentes, dans lequel le gaz comprimé comprend de l'air comprimé.
  9. Procédé selon l'une quelconque des revendications précédentes, dans lequel le gaz comprimé présente lors du rinçage à l'étape c) une pression de rinçage qui est inférieure à la pression minimale.
  10. Procédé selon la revendication précédente, dans lequel la pression de rinçage est comprise dans une plage de 1 bar à 12 bars.
  11. Procédé selon l'une quelconque des revendications précédentes, dans lequel le sifflet d'alerte (182) présente au moins une soupape (188) et au moins un organe de signalisation (186), la soupape (188) pouvant être soumise à une pression intérieure de l'élément de guidage de gaz (180).
  12. Procédé selon la revendication précédente, dans lequel au moins une cavité (214) est réalisée entre la soupape (188) et l'organe de signalisation (186), dans lequel le gaz comprimé à l'étape c) s'écoule à travers la cavité (214) jusqu'à l'organe de signalisation (186) et ensuite à travers l'orifice de sortie (184).
  13. Procédé selon l'une quelconque des deux revendications précédentes, dans lequel l'orifice de sortie (184) est disposé sur l'organe de signalisation (186) .
  14. Système de nettoyage (111) permettant d'exécuter le procédé selon l'une quelconque des revendications précédentes, comprenant :
    - au moins un dispositif de nettoyage (110) comprenant au moins une chambre de nettoyage (116) pour recevoir ledit au moins un respirateur (112), dans lequel le dispositif de nettoyage (110) présente en outre au moins un dispositif de sollicitation (122) pour soumettre le respirateur (112) audit au moins un fluide de nettoyage (132, 154) à l'étape b), dans lequel le dispositif de nettoyage (110) présente en outre au moins un dispositif de mise sous pression (190) muni d'au moins un raccord de pression (178), dans lequel le raccord de pression (178) peut être relié audit au moins un élément de guidage de gaz (180) du respirateur (112), et dans lequel le dispositif de mise sous pression (190) est conçu pour rincer le sifflet d'alerte (182) à l'étape c) avec le gaz comprimé ;
    - au moins un élément de recouvrement (113), dans lequel l'élément de recouvrement (113) est conçu pour fermer ledit au moins un orifice de sortie (184) dudit au moins un sifflet d'alerte (182) dudit au moins un respirateur (112) au moins partiellement de sorte que le gaz comprimé peut toujours s'échapper à travers l'orifice de sortie (184) au moins partiellement recouvert.
  15. Système de nettoyage (111) selon la revendication précédente, dans lequel le dispositif de mise sous pression (190) présente au moins un raccord de pression externe pour être relié à une source de gaz comprimé externe (206).
EP21183851.1A 2020-07-07 2021-07-06 Procédé et système de nettoyage permettant de nettoyer un respirateur Active EP3936242B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020208471.8A DE102020208471A1 (de) 2020-07-07 2020-07-07 Verfahren und ein Reinigungssystem zur Reinigung von Atemgerät

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EP3936242A1 EP3936242A1 (fr) 2022-01-12
EP3936242B1 true EP3936242B1 (fr) 2023-12-13

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DE102020208471A1 (de) 2022-01-13
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