EP3092928B1 - Device for drying insulating floor layers in a vacuum method - Google Patents

Device for drying insulating floor layers in a vacuum method Download PDF

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Publication number
EP3092928B1
EP3092928B1 EP16168962.5A EP16168962A EP3092928B1 EP 3092928 B1 EP3092928 B1 EP 3092928B1 EP 16168962 A EP16168962 A EP 16168962A EP 3092928 B1 EP3092928 B1 EP 3092928B1
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EP
European Patent Office
Prior art keywords
compressor
suction
device housing
water separator
fine filter
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
EP16168962.5A
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German (de)
French (fr)
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EP3092928A1 (en
Inventor
Detlef Von Der Lieck
Frank Dehen
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Trotec & Co KG GmbH
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Trotec & Co KG GmbH
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Publication date
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Priority to PL16168962T priority Critical patent/PL3092928T3/en
Publication of EP3092928A1 publication Critical patent/EP3092928A1/en
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Publication of EP3092928B1 publication Critical patent/EP3092928B1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/70—Drying or keeping dry, e.g. by air vents
    • E04B1/7069—Drying or keeping dry, e.g. by air vents by ventilating
    • E04B1/7092—Temporary mechanical ventilation of damp layers, e.g. insulation of a floating floor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0023—Recovery tanks
    • A47L7/0028—Security means, e.g. float valves or level switches for preventing overflow
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0023—Recovery tanks
    • A47L7/0038—Recovery tanks with means for emptying the tanks

Definitions

  • the invention relates to a device for drying insulating layers of floors in the vacuum method, comprising a compressor with which the moist air is sucked out of the insulating layer located below the floor covering by at least one suction opening in the floor, this humid air from the or the suction opening (s ) is transported by a respective drying air hose to a compressor coupled to the water separator in which the water contained in the moist air is separated, and the discharged from the water separator Saugluft-volume flow to the compressor, the compressor includes a suction motor, the high Runs speeds and compresses the suction air flow rate, the unit comprises a water separator, a fine filter and sound attenuation means in addition to the compressor and the compressor, the water separator, the fine filter and the means for soundproofing are interconnected.
  • a generic device is already out of the DE 10 2012 007 273 A1 known.
  • This water in the insulating layer ie in the lying below the floor covering layer intermediate floor, must be removed so that there is no further damage to the building fabric.
  • the so-called insulating layer drying application In this case, among other insulation layer drying units are used to the insulating layer below the Floor or screed floor to dry, which has become moist or wet due to the water damage.
  • Modern building methods for example, provide an insulating layer between cement floor and screed floor for optimum insulation.
  • Various insulating materials such as polystyrene or glass fabric are used. If water damage occurs and the water gets into this intermediate space (the insulating layer), a modernization of the screed can be prevented by modern drying methods.
  • insulating layer drying essentially two variants are used, namely the overpressure method and the vacuum method.
  • the overpressure method dry, heated air is flooded or blown through specifically provided or prepared openings in the insulation layer, which accumulates with the moisture from the insulation layer and escapes via an edge joint or other relief openings up into the room, where they dehumidifying units set up in this room is dried again.
  • the vacuum method is usually used, in which the moist air is drawn out of the insulating layer through existing or prepared openings in the floor / screed or through openings, for example, in an edge joint of the floor / screed with a compressor.
  • This humid air which can also be referred to as air-water mixture is conveyed through a hose to the compressor, which emits the moist air to the room, wherein the sucked by the aforementioned drying air hose air-water mixture is preferably first with a the compressor coupled to the water separator, in which the liquid water contained in the moist air is separated.
  • a vacuum arises in this vacuum process which, due to trailing, possibly by means of dehumidifying devices (for example, condensate drying devices), compensates for room air through open edge joints or other discharge openings.
  • compressors In the above-described positive pressure and negative pressure method for drying insulating layers so-called compressors are used, and there are different types of such compressors. For a long time, so-called side channel compressors are used, but they have the disadvantage that they are usually very heavy and large, which has an adverse effect in practice when using such a compressor.
  • WO 2012/002900 A1 proposes a compressor in which instead of a side channel compressor in the compressor, a suction motor is integrated, which can run at high speeds.
  • a suction motor is integrated in which instead of a side channel compressor in the compressor, which can run at high speeds.
  • Such high-speed naturally aspirated engines have a comparatively low weight and a relatively small size.
  • Such high-speed suction engines are also often used in vacuum cleaners. Despite high back pressures, these naturally aspirated engines produce a high volume flow.
  • a controller can be used to set the speed of the fan or the compressor stages in such a naturally aspirated engine.
  • Such a suction motor is integrated in a specially designed, two-piece compressor housing.
  • this special construction is characterized by various soundproof chambers and surfaces, which in the same time a sound insulation of the very loud suction motor and at the same time a good cooling of the same is to be achieved in operation.
  • the latter is important because such naturally aspirated engines emit a correspondingly high heat because of their high speeds, which can even lead to overheating.
  • the Compressor with the high-speed suction motor according to the WO 2012/002900 A1
  • the funds for soundproofing and cooling are constructed very complicated.
  • the flow control unit allows a targeted control and suction, resulting in a uniform and faster drying of all moistened areas of the insulation layer.
  • a disadvantage of the in the DE 10 2012 007 273 A1 is the fact that the flow control unit and the compressor, water, filters and mufflers are individual, that is accommodated in their own equipment housings devices.
  • a device of the generic type characterized in that the compressor, the water separator, the fine filter and the means for sound attenuation in housed in a single device housing and are connected directly to each other and the device housing consists of a removable upper part and a lower part, that the compressor is arranged in the upper part and is surrounded by the means for soundproofing, that in the lower part of the device housing, the water separator is arranged, which there separated water is collected in a water collection container, which is automatically emptied when reaching a certain level by means of a connected pump, that in the upper part of the lower part of the fine filter is arranged, the suction motor of the compressor and the fine filter are arranged to each other so that the suction-side part protrudes into the suction filter in the fine filter, that at least one connection piece for connecting a drying air hose is provided at the bottom of the device housing, so that the there reaching into the device suction air volume flow first into the Wasserabscheide r and flows from there through the fine filter to the
  • the height of the device housing of the device according to the invention is now only 0.60 meters.
  • the device according to the invention is thus much smaller and space-saving and therefore much lighter than the previous device combinations.
  • the suction motor and the fine filter are arranged to each other so that the suction-side part of the suction motor protrudes into the fine filter.
  • the said fine filter usually has an annular shape. This is now exploited here by the open space located within this annulus is used, that is, the suction-side part of the suction motor protrudes into this open area.
  • the small size of the device according to the invention also has the advantage that the storage and transport (for example, in motor vehicles) such devices can be done very compactly. This is especially true when the devices are stackable. Small compact units are also of central importance for drying the insulation, as there is often not much space available for drying. For example, drying measures often have to be carried out in private households, in small kitchens or in bathrooms, which, in addition, should continue to be used during damage remediation.
  • Another great advantage of the device according to the invention is to be seen in the fact that the fact that the individual components (water, fine filter, compressor and muffler) no longer need to be connected or hideaway with each other, the user will save time so far as he in the inventive Device does not need to make such a connection anymore.
  • the new device according to the invention is also much less susceptible to errors and interference compared to the previously known device combinations.
  • a power cable is required in the device according to the invention, at least two plugs are required in a conventional appliance tower, that is, you have to plug the plug of the compressor into the socket of the water separator, so that the device tower can work properly.
  • the solution according to the invention also leads, for the reasons already mentioned above, to a saving of material, since it saves a large part of the hitherto necessary assembly (cutting) of the hoses, which are required for the connection of the individual components. It therefore eliminates the "tubing" already described above the previously used individually device components. This in turn also leads to a saving of space during transport of the equipment to the point of damage, so for example a construction site.
  • the space-saving design and placement of the individual device components in the device housing of the device according to the invention will be described in more detail below.
  • the more compact and lighter construction of the device according to the invention is therefore also made possible by the use of the previously described smaller and lighter, but very high-performance suction motor in the compressor.
  • This compressor with the naturally aspirated engine is also the central component of the device.
  • the suction motor sucks the airflow out of the insulating layer through the fine filter.
  • the suction air volume flow or the moist air is thus from the insulation layer transported at least one drying air hose to the device according to the invention and passes through there existing connection nozzle first in the water separator, from there through the fine filter to the compressor and finally through at least one existing in the device housing opening back out of the device.
  • the first alternative solution is that the opening (s) is or are formed as an air passage opening (s) in the upper part of the device housing, so that the suction air volume flow can thereby escape into the environment.
  • air passage openings may for example be designed slit-shaped or lattice-shaped, wherein the openings must be so large or dimensioned so that the air outlet can be done easily even with large volumes of suction air volume flow.
  • the second alternative solution is that the opening comprises a nozzle in the upper part of the device housing, to which a hose can be connected, through which the suction air volume flow is led out into the environment.
  • the suction air volume flow leaves the device through this hose.
  • the hose can then be quite long, so that the suction air volume flow, which is then namely, namely, relatively warm air, not even gets into the momentarily dehumidifying room, but is led outside, for example, outside the building. Since the suction air volume flow, as stated above, consists essentially of relatively warm air, this alternative solution prevents the ambient air in the room to be dehumidified from being unnecessarily warmed up again.
  • the additional advantage according to the invention comes into play, that the warm air produced in the device out of the device and can escape only outside the room to be dehumidified or the building.
  • Another advantage of the invention is the pump which is connected to the water collection tank. When a certain level is reached, the water from the water separator is automatically emptied by means of this pump. This is a continuous implementation of the drying measure possible because the compressor or the device no longer has to be temporarily switched off as before to empty the water collection container.
  • the device according to the invention thus also saves the user time and work.
  • the device or device housing must therefore not be opened to drain or remove the water.
  • the device has a water pump discharge nozzle, so that the water can be emptied from the device in a practical manner.
  • the great advantage of the device according to the invention in comparison with the known insulation layer drying systems is therefore the fact that the water separator with the water collection container and the compressor are now firmly or directly and compulsorily linked together.
  • the suction motor is automatically switched off. This is ensured by a control device included in the device (equipped with a control board). It also ensures that the naturally aspirated engine does not continue until the water collection container is empty.
  • the device housing consists of a removable upper part and a lower part. This has the advantage that the upper part can be removed, which exposes all important and important device components contained in the device. In this way, they can be easily maintained, cleaned or replaced if necessary.
  • the upper part and the lower part have means for releasing and connecting the same from each other or with each other.
  • Such means may be, for example, locking latches provided on the outside of the device housing for connecting the upper part and the lower part.
  • the device housing according to the invention does not necessarily have to consist of a top part and a bottom part in two parts, but that it can also be designed as a one-part housing.
  • the above object is achieved with a generic device for drying insulation layers of floors in the vacuum process so with an alternative solution in which the Compressor, the water separator, the fine filter and the means for soundproofing are housed in a single device housing and connected directly to each other and the device housing is made in one piece, that the compressor is located in the upper part of the device housing and is surrounded by the means for soundproofing that in lower part of the device housing of the water separator is arranged, wherein the water deposited there is collected in a water collection container, which is automatically emptied when reaching a certain level by means of a connected pump, that in the upper part of the lower part of the device housing the fine filter is arranged, wherein the Suction motor of the compressor and the fine filter are arranged to each other so that the suction-side part of the suction motor protrudes into the fine
  • the means for soundproofing consist of a material known per se such as foam and are arranged around the suction motor.
  • the device according to the invention would also function without means for soundproofing. These funds could also be omitted, but the device would then work very loud.
  • the aforementioned devices according to the invention can be equipped without a Hepa filter, so that the suction air volume flow from the water separator passes through the fine filter directly to the compressor.
  • Such fine filters and Hepa filters are commercially available and known.
  • the fine filter has the task of filtering out of the sucked volume flow particles which could damage the suction motor, and also of the Hepa filter the task of purifying the air for the environment.
  • a Hepa filter is therefore unnecessary if the environmental conditions for people are not critical, so for example in a shell, in cellars or other places where no people are during the drying process.
  • a Hepa filter is arranged in a filter unit, wherein the suction-side part of the suction motor also protrudes into the Hepa filter.
  • the device according to the invention is particularly advantageous as a mobile device is formed, for which purpose in the lower region of the device housing wheels are present. So the user can change the device quickly and without effort or spend at another location. Also, the handling of the device facilitates the embodiment in which a bracket or a rod with a handle for moving the device are present on one side of the device housing. This allows the user to easily slide or pull the device.
  • FIGS. 3 to 5 describe an embodiment of the device 1 according to the invention, which is provided for drying insulating layers of floors in the vacuum method.
  • the functional principle of the vacuum method has already been explained in more detail in the introduction to the description and is not new in itself.
  • Fig. 1 It can already be seen well, it is a device 1 with a device housing 2, which is designed in a very compact design. This is a much smaller compared to previously known arrangements of devices for Dämm fürtrocknung device.
  • Fig. 2 For illustration and also for size comparison with the new device 1 shown.
  • the prior art arrangement 3 comprises individual components stacked one above the other in the form of a device tower, which are usually also used today in insulating-layer drying.
  • the humid air from the insulating layer passes through three drying air hoses 5a, 5b and 5c in the water separator 4.
  • On the water separator 4 is also housed in a separate housing filter unit 6, the one Hepa filter contains.
  • Fig. 2 also shows how these individual components are interconnected by tubing. So to carry out a drying measure, these individual components must first be placed on each other and connected to each other, which is associated with a considerable amount of time and effort.
  • FIG. 1 shown embodiment of the device 1 according to the invention is designed and constructed so that a much less time and effort is required in the construction of Dämm fürtrocknungssystems and in the implementation of Dämm fürtrocknung. How this happens is now based on the Fig. 3 and 4 described in detail: As already stated, this is in Fig. 3 shown apparatus for drying of insulating layers of floors provided by the vacuum method.
  • This suction motor 10 has the task, as is already known in such insulating layer drying systems, to suck the moist air from the insulating layer, not shown in the drawings.
  • drying air hoses are used in practice, which are often plugged into this prepared suction in the region of an edge joint of the floor (eg a screed).
  • the compressor 9 sucks by means of drying air hoses 11 to the existing in the insulating moist air, which is also referred to as air-water mixture or process air.
  • Such a drying air hose 11 is in Fig. 3 to see how it is connected to the device housing 2 by means of a connection spigot 12.
  • the device 1 has a total of three such connecting pieces 12, so that a total of three drying air hoses 11 can be connected to the device 1.
  • the already mentioned compressor 9 is located with the suction motor 10 in the upper part 15 of the device housing 2.
  • the device housing 2 thus consists of the upper part 15 and the lower part 13, wherein the upper part of the 15th is designed removable. This means that the upper part 15 and the lower part 13 can be separated or loosened from one another and also connected to one another again.
  • a locking device 16 is provided on the device housing 2, which need not be explained in detail.
  • a filter unit consisting of a fine filter 17 and a Hepa filter 18 is also present in the device housing 2. How nice Fig. 3 can be seen, all these individual components, ie the compressor 9, the water separator 14 and the fine filter 17 and Hepa filter 18 are housed in the device housing 2 and connected directly to each other.
  • This also includes means for sound insulation 19, which surround the compressor 9 and the suction motor 10 in the upper part 15.
  • These means for soundproofing 19 are preferably made of an open-cell foam material.
  • the suction motor 10 is mounted on a base plate 20 which belongs to the upper part 15.
  • the suction air volume flow which is generated or sucked by the suction motor 10 and comes through the drying air hose 11 and the water separator 14, thus flows from this water separator 14 first through the Hepa filter 18 and the cuff-shaped fine filter 17, the Hepa filter 18th surrounds.
  • the Hepa filter 18 or fine filter 17 is mounted under the base plate 20 by means of a metal angle piece 21.
  • the cuff-shaped fine filter 17 is then simply wrapped around the Hepa filter 18.
  • such Hepa filters and fine filters are made in an annular design.
  • Fig. 3 can also recognize that the filter unit with the fine filter 17 and the Hepa filter 18 are actually attributable to the upper portion of the lower part 13 of the device housing 2.
  • Fig. 3 It can also be seen that the connection of the suction motor 10 with the filter unit consisting of fine filter 17 and Hepa filter 18 is very space-saving by the suction-side part 22 of the suction motor 10 is arranged so that it in the inner region of the annular Hepa filter 18 protrudes. This also contributes significantly to the small size of the device 1.
  • the pressure-side part 23 of the suction motor 10 is also in Fig. 3 At the pressure-side part 23 so the suction air flow leaves the suction motor 10 and compressor 9. So that this air can leave the device 1 again, 2 air passage openings 24 are provided in the upper part 15 of the device housing. These are in Fig. 1 to see and have on one side of the upper part 15 a slit-shaped training. On the opposite side and not visible are also such air passage openings.
  • ambient air can enter the device housing 2 through these air passage openings. This is also necessary and advantageous because the naturally aspirated engine 10 not only generates or sucks the suction air flow, but also - for the purpose of its own cooling or cooling of the engine electronics - sucking in cooling air from above through a corresponding opening of the engine and This cooling air is discharged through laterally arranged cooling air outlet openings 25 back to the outside.
  • this water separator 14 comprises a large water collection container 26, in which the accumulated water is collected from the suction air volume flow and pumped out as needed.
  • a pump 27 is provided, on the bottom of the water collection container 26 (see Fig. 3 ).
  • a sensor board 28 is attached to the bottom of the water collection container 26.
  • the water separator 14 also includes a mist eliminator 29 (called "demister” in English) and a baffle plate 30.
  • the arrangement and shape of these known per se - droplet 29 and baffle plate 30 - is in Fig.
  • the device 1 ensures that the moisture in the intake air is reduced and the water thus separated is collected in the water collection container 26.
  • the construction of the device 1 according to the invention also makes it possible for the mist eliminator 29 to be easily removed from the water collecting container 26 so that the water collecting container 26 and of course the mist eliminator 29 can be thoroughly cleaned.
  • the size and shape of the water collection container 26 is in Fig. 3 clearly visible.
  • the water collection container 26 thus has dimensions that largely correspond to the dimensions of the lower part 13. Thus, therefore, the volume of the lower part 13 for the water collection container 26 is utilized as much as possible.
  • you can see in Fig. 3 that also by the arrangement of the filter unit with fine filter 17 and Hepa filter 18 within the water collection container 26 of the available space is optimally utilized.
  • a device electronics unit 31 sits - separated by a plate 32 - separately in the upper part 15 of the device housing 2. There is also a control panel 33 and the on-off switch 34 of the device 1 placed. A mains connection 35 for the power supply of the device 1 is located in the upper part 15. Fig. 3 also shows a power cord 36 connected to the power supply 35. As stated above in the introduction to the description, the apparatus 1 requires only a single power cable 36, whereas the previous equipment systems require more than one power cord. Since the pump 27 must be supplied with power, a spring contact strip 37 is mounted in the upper part 15, which conducts the current in the lower part 13. For this purpose, the counterpart to the spring contact strip 37 is mounted in the lower part 13.
  • the device 1 has been put into operation and all settings were made via the control panel 33 by the user, this can begin immediately with the insulation drying.
  • the insulating-layer drying process with the device 1 can be carried out simply and conveniently. This also includes the avoidance of any errors on the part of the craftsman, which sometimes occurred in the compilation of the previously separately installed individual components. This is because all the individual components are now housed in the device housing 2, directly connected to each other and matched.
  • the device electronics unit 31 ensures proper running of the insulating layer drying with this device 1.
  • the device 1 can also be used without it having to be opened in between, for example, to get the collected water out of the water collection container 26.
  • the collected water is automatically drained via a pump discharge nozzle 38. In this way, therefore, the water is emptied from the device 1 in a practical manner.
  • the unit electronics unit 31 ensures that the suction motor 10 is turned off if the pump 27 fails to do so should pump out the water as fast as it is sucked by the suction motor 10.
  • the device electronics unit 31 and the control board 28 thus ensure that the suction motor 10 only continues to run again when the water collection container 26 is pumped empty.
  • FIG. 4 is an exploded view to represent essential items of the device 1 from a different perspective and more vividly.
  • Fig. 4 there is also a handle 39 at the top of the upper part 15, so that the lid-like upper part 15 can be better held by hand.
  • the device 1 includes a bracket with a handle 41 in order to drive or displace the device easier.
  • the wheels 40a, 40b which are arranged on the side at which the bracket 41 is provided with a handle, there are also two support wheels 42a and 42b at the bottom of the device housing 2, so that the device 1 is always straight standing on the ground.
  • FIG. 5 to recognize that, for example, two devices 1 can be placed or stacked well. This requires no further explanation. To the top of the upper part 15 are also to wells 43a, 43b, in which the support wheels 42a, 42b fit, thereby slipping stacked devices 1 is avoided.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Drying Of Solid Materials (AREA)

Description

Die Erfindung betrifft ein Gerät zur Trocknung von Dämmschichten von Fußböden im Unterdruckverfahren, umfassend einen Verdichter, mit dem die feuchte Luft aus der unterhalb des Fußbodenbelags befindlichen Dämmschicht durch wenigstens eine Absaugöffnung im Fußboden abgesaugt wird, diese feuchte Luft von der bzw. den Absaugöffnung(en) durch jeweils einen Trocknungsluftschlauch zu einem mit dem Verdichter gekoppelten Wasserabscheider transportiert wird, in dem das in der feuchten Luft enthaltene Wasser abgeschieden wird, und der aus dem Wasserabscheider abgeführte Saugluft-Volumenstrom zum Verdichter gelangt, wobei der Verdichter einen Saugmotor enthält, der mit hohen Drehzahlen laufen kann und den Saugluft-Volumenstrom verdichtet, wobei das Gerät außer dem Verdichter einen Wasserabscheider, einen Feinfilter und Mittel zur Schalldämpfung umfasst und der Verdichter, der Wasserabscheider, der Feinfilter und die Mittel zur Schalldämpfung miteinander verbunden sind. Ein solches gattungsgemäßes Gerät ist bereits aus der DE 10 2012 007 273 A1 bekannt.The invention relates to a device for drying insulating layers of floors in the vacuum method, comprising a compressor with which the moist air is sucked out of the insulating layer located below the floor covering by at least one suction opening in the floor, this humid air from the or the suction opening (s ) is transported by a respective drying air hose to a compressor coupled to the water separator in which the water contained in the moist air is separated, and the discharged from the water separator Saugluft-volume flow to the compressor, the compressor includes a suction motor, the high Runs speeds and compresses the suction air flow rate, the unit comprises a water separator, a fine filter and sound attenuation means in addition to the compressor and the compressor, the water separator, the fine filter and the means for soundproofing are interconnected. Such a generic device is already out of the DE 10 2012 007 273 A1 known.

Auf dem Gebiet der Trocknungstechnik sind zahlreiche Aggregate, Systeme und Verfahren zur Durchführung von Trocknungs- bzw. Entfeuchtungsmaßnahmen in Gebäuden, Gebäudeteilen, Gebäuderäumen und dergleichen bekannt. Abgesehen von Verfahren bzw. Aggregaten zum Entfeuchten bzw. Trocknen von Räumen in Gebäuden bzw. Gebäudeteilen kommen auch Trocknungsverfahren bzw. Trocknungsaggregate zum Einsatz, die insbesondere zur Sanierung von Wasserschäden in Gebäudekonstruktionen vorgesehen sind. Zu solchen Wasserschäden kommt es durch Leitungswasserschäden (zum Beispiel wegen des Bruches oder der Undichtigkeit eines Leitungswasserrohres in einem Haus), Hochwasser, Überschwemmungen oder dergleichen. In solchen Schadensfällen gelangt Wasser meistens in den Fußbodenaufbau, das heißt beispielsweise in die Dämmschicht, die sich unter dem Fußboden bzw. Estrich befindet. Dieses Wasser in der Dämmschicht, das heißt in dem unterhalb der Fußboden-Deckschicht liegenden Zwischenboden, muss entfernt werden, damit es zu keiner weitergehenden Schädigung der Bausubstanz kommt. Hierzu findet die sogenannte Dämmschicht-Trocknung Anwendung. Dabei werden unter anderem Dämmschicht-Trocknungsaggregate benutzt, um die Dämmschicht unterhalb des Fußbodens bzw. Estrichbodens zu trocknen, welche infolge des Wasserschadens feucht bzw. nass geworden ist.In the field of drying technology, numerous units, systems and methods for carrying out drying or dehumidifying measures in buildings, building parts, building spaces and the like are known. Apart from processes or units for dehumidifying or drying rooms in buildings or parts of buildings are also drying processes or drying units are used, which are provided in particular for the rehabilitation of water damage in building structures. Such water damage is caused by tap water damage (for example, breakage or leakage of a tap water pipe in a house), flood, flood or the like. In such cases of damage water usually gets into the floor structure, that is, for example, in the insulating layer, which is located under the floor or screed. This water in the insulating layer, ie in the lying below the floor covering layer intermediate floor, must be removed so that there is no further damage to the building fabric. For this purpose, the so-called insulating layer drying application. In this case, among other insulation layer drying units are used to the insulating layer below the Floor or screed floor to dry, which has become moist or wet due to the water damage.

Moderne Gebäudebauweisen sehen beispielsweise eine Dämmschicht zwischen Zementboden und Estrichboden für eine optimale Isolierung vor. Verschiedenste Dämmmaterialien wie zum Beispiel Polystyrol oder Glasgewebe kommen darin zum Einsatz. Geschieht ein Wasserschaden und gerät das Wasser in diesen Zwischenraum (der Dämmschicht), kann durch moderne Trocknungsverfahren ein Rückbau des Estrichs verhindert werden.Modern building methods, for example, provide an insulating layer between cement floor and screed floor for optimum insulation. Various insulating materials such as polystyrene or glass fabric are used. If water damage occurs and the water gets into this intermediate space (the insulating layer), a modernization of the screed can be prevented by modern drying methods.

Bei der Dämmschicht-Trocknung kommen im Wesentlichen zwei Varianten zur Anwendung, nämlich das Überdruck-Verfahren und das Unterdruck-Verfahren. Beim Überdruck-Verfahren wird trockene, erwärmte Luft durch speziell vorgesehene bzw. vorbereitete Öffnungen in die Dämmschicht eingeflutet bzw. eingeblasen, welche sich mit der Feuchtigkeit aus der Dämmschicht anreichert und über eine Randfuge oder andere Entlastungsöffnungen nach oben in den Raum entweicht, wo sie mittels in diesem Raum aufgestellter Entfeuchtungsaggregate wieder getrocknet wird. Heutzutage wird jedoch meistens das Unterdruck-Verfahren angewendet, bei dem mit einem Verdichter die feuchte Luft aus der Dämmschicht durch bereits vorhandene oder hierzu vorbereitete Öffnungen im Fußboden/Estrich oder durch Öffnungen zum Beispiel in einer Randfuge des Fußbodens/Estrichs herausgezogen bzw. abgesaugt wird. Diese feuchte Luft, die auch als Luft-Wasser-Gemisch bezeichnet werden kann, wird durch einen Schlauch zum Verdichter gefördert, der die feuchte Luft an den Raum abgibt, wobei das durch den vorgenannten Trocknungsluftschlauch angesaugte Luft-Wasser-Gemisch vorzugsweise zunächst auf einen mit dem Verdichter gekoppelten Wasserabscheider trifft, in dem das in der feuchten Luft enthaltene flüssige Wasser abgeschieden wird. Im Bereich der Dämmschicht entsteht bei diesem Unterdruck-Verfahren ein Vakuum, welches sich aufgrund nachziehender, gegebenenfalls mittels Entfeuchtungsgeräten (zum Beispiel Kondenstrocknungsgeräten) getrockneter Raumluft durch geöffnete Randfugen bzw. andere Entlastungsöffnungen wieder ausgleicht.In insulating layer drying, essentially two variants are used, namely the overpressure method and the vacuum method. In the overpressure method, dry, heated air is flooded or blown through specifically provided or prepared openings in the insulation layer, which accumulates with the moisture from the insulation layer and escapes via an edge joint or other relief openings up into the room, where they dehumidifying units set up in this room is dried again. Nowadays, however, the vacuum method is usually used, in which the moist air is drawn out of the insulating layer through existing or prepared openings in the floor / screed or through openings, for example, in an edge joint of the floor / screed with a compressor. This humid air, which can also be referred to as air-water mixture is conveyed through a hose to the compressor, which emits the moist air to the room, wherein the sucked by the aforementioned drying air hose air-water mixture is preferably first with a the compressor coupled to the water separator, in which the liquid water contained in the moist air is separated. In the area of the insulating layer, a vacuum arises in this vacuum process which, due to trailing, possibly by means of dehumidifying devices (for example, condensate drying devices), compensates for room air through open edge joints or other discharge openings.

Wie bereits vorstehend ausgeführt, ist es für den Verdichter günstig, dass das zuvor aus der Dämmschicht gesaugte Luft-Wasser-Gemisch in dem vorgeschalteten Wasserabscheider so separiert wird, dass das in dieser angesaugten Prozessluft enthaltene Wasser abgeschieden wird. Dazu ist in den bekannten Wasserabscheidern ein entsprechender Wassersammelbehälter vorgesehen. Im Übrigen ist es bekannt, bei einer solchen Anordnung zur Trocknung von Dämmschichten im Unterdruck-Verfahren zwischen dem Wasserabscheider und dem Verdichter erforderlichenfalls noch Filter (Feinfilter und/oder Hepa-Filter) vorzusehen, um eine Filterung bzw. Abscheidung von Feinpartikeln, Kleinstpartikeln und Schwebstoffen zu erreichen, die meistens ebenfalls in dem abgesaugten Luft-Wasser-Gemisch enthalten sind.As already stated above, it is beneficial for the compressor that the previously extracted from the insulating layer air-water mixture is separated in the upstream water separator so that the water contained in this sucked process air is separated. For this purpose, a corresponding water collection container is provided in the known water separators. Incidentally, it is known in such an arrangement for drying insulation layers in the vacuum process between the water and the compressor if necessary still filter (fine filter and / or Hepa filter) provide to a filtration or deposition of fine particles, micro-particles and suspended solids reach, which are usually also included in the extracted air-water mixture.

Bei den vorstehend beschriebenen Überdruck- und Unterdruck-Verfahren zur Trocknung von Dämmschichten werden sogenannte Verdichter verwendet, wobei es verschiedene Bauformen solcher Verdichter gibt. Seit langem werden sogenannte Seitenkanal-Verdichter benutzt, die jedoch den Nachteil haben, dass sie meistens sehr schwer und groß sind, was sich in der Praxis beim Einsatz solcher Verdichter nachteilig auswirkt.In the above-described positive pressure and negative pressure method for drying insulating layers so-called compressors are used, and there are different types of such compressors. For a long time, so-called side channel compressors are used, but they have the disadvantage that they are usually very heavy and large, which has an adverse effect in practice when using such a compressor.

Es wurde daher bereits in der PCT-Veröffentlichungsschrift WO 2012/002900 A1 ein Verdichter vorgeschlagen, bei dem anstelle eines Seitenkanal-Verdichters in dem Verdichter ein Saugmotor integriert ist, der mit hohen Drehzahlen laufen kann. Solche hochtourig laufenden Saugmotoren besitzen ein vergleichsweise geringes Gewicht und eine relativ kleine Baugröße. Solche Saugmotoren mit hoher Drehzahl werden auch häufig in Staubsaugern eingesetzt. Trotz hoher Gegendrücke erzeugen diese Saugmotoren einen hohen Volumenstrom. Über einen Regler lässt sich die Geschwindigkeit des Ventilators bzw. der Verdichterstufen in einem solchen Saugmotor einstellen. In der vorgenannten WO 2012/002900 A1 ist ein solcher Saugmotor in einem speziell konstruierten, zweiteiligen Verdichtergehäuse integriert. Dabei zeichnet sich diese spezielle Konstruktion durch verschiedene schallgeschützte Kammern und Oberflächen aus, wodurch im Betrieb zum einen eine Schalldämmung des an sich sehr lauten Saugmotors und gleichzeitig eine gute Kühlung desselben erreicht werden soll. Letzteres ist wichtig, da solche Saugmotoren wegen ihrer hohen Drehzahlen eine entsprechend hohe Wärme abstrahlen, was sogar zu Überhitzungen führen kann. Der Verdichter mit dem hochtourigen Saugmotor gemäß der WO 2012/002900 A1 hat jedoch zunächst den Nachteil, dass die Mittel für die Schalldämpfung und Kühlung sehr kompliziert konstruiert sind.It has therefore already been in the PCT publication WO 2012/002900 A1 proposed a compressor in which instead of a side channel compressor in the compressor, a suction motor is integrated, which can run at high speeds. Such high-speed naturally aspirated engines have a comparatively low weight and a relatively small size. Such high-speed suction engines are also often used in vacuum cleaners. Despite high back pressures, these naturally aspirated engines produce a high volume flow. A controller can be used to set the speed of the fan or the compressor stages in such a naturally aspirated engine. In the aforementioned WO 2012/002900 A1 Such a suction motor is integrated in a specially designed, two-piece compressor housing. In this case, this special construction is characterized by various soundproof chambers and surfaces, which in the same time a sound insulation of the very loud suction motor and at the same time a good cooling of the same is to be achieved in operation. The latter is important because such naturally aspirated engines emit a correspondingly high heat because of their high speeds, which can even lead to overheating. Of the Compressor with the high-speed suction motor according to the WO 2012/002900 A1 However, at first has the disadvantage that the funds for soundproofing and cooling are constructed very complicated.

Nachteilig ist auch, dass bisher bei der Dämmschicht-Trocknung immer einzelne Geräte-Komponenten (Verdichter, Wasserabscheider, Filter, Schalldämpfer) zum Einsatz kommen, was einen hohen Aufwand für den Aufbau der Trocknungsanlage erfordert. Dies gilt auch für das in der DE 10 2012 007 273 A1 offenbarte System und Verfahren zur Trocknung von Dämmschichten von Fußböden im Unterdruckverfahren. Bei diesem System stellen der Verdichter, der Wasserabscheider, der Filter und der Schalldämpfer einzelne Geräte dar, die durch Schläuche miteinander verbunden sind und entweder nebeneinander oder alle oder teilweise aufeinander gestellt bzw. gestapelt sind. Dieses System und Verfahren beinhaltet außerdem eine spezielle Durchfluss-Steuereinheit. In dieser Durchfluss-Steuereinheit ist zur Regelung der Saugluft-Volumenströme eine Regeleinheit vorhanden, welche mit einem Feuchtesensor gekoppelt ist. Die Durchfluss-Steuereinheit ermöglicht ein gezieltes Ansteuern und Absaugen, was zu einer gleichmäßigen und schnelleren Austrocknung aller durchfeuchteten Bereiche der Dämmschicht führt. Nachteilig bei dem in der DE 10 2012 007 273 A1 beschriebenen System und Verfahren ist jedoch der Umstand, dass die Durchfluss-Steuereinheit sowie der Verdichter, Wasserabscheider, Filter und Schalldämpfer einzelne, das heißt in jeweils eigenen Gerätegehäusen untergebrachte Geräte sind.Another disadvantage is that so far in the insulating layer drying always individual device components (compressor, water, filters, silencers) are used, which requires a lot of effort for the construction of the drying plant. This also applies to the in the DE 10 2012 007 273 A1 disclosed system and method for drying of insulating layers of floors in the vacuum process. In this system, the compressor, the water separator, the filter and the silencer are individual devices that are connected by hoses and are either side by side or all or partially stacked on each other. This system and method also includes a dedicated flow control unit. In this flow control unit, a control unit is provided for controlling the suction air volume flows, which is coupled to a humidity sensor. The flow control unit allows a targeted control and suction, resulting in a uniform and faster drying of all moistened areas of the insulation layer. A disadvantage of the in the DE 10 2012 007 273 A1 However, the system and method described is the fact that the flow control unit and the compressor, water, filters and mufflers are individual, that is accommodated in their own equipment housings devices.

Daher liegt der vorliegenden Erfindung die Aufgabe zugrunde, ein Gerät zur Trocknung von Dämmschichten von Fußböden im Unterdruck-Verfahren zu schaffen, das einen Verdichter zusammen mit den anderen, bei der Dämmschichttrocknung üblicherweise verwendeten Gerätekomponenten (Wasserabscheider, Feinfilter und gegebenenfalls Hepa-Filter sowie Schalldämpfer) in einer im Vergleich zu den bisher bekannten Lösungen wesentlich kleineren und damit platzsparenderen sowie leichter handhabbaren Weise verbindet.It is therefore an object of the present invention to provide a device for drying of insulating layers of floors in the vacuum method, which includes a compressor together with the other, commonly used in the insulation drying device components (water separator, fine filter and optionally Hepa filter and muffler) connects in a much smaller and thus space-saving and easier to handle manner compared to the previously known solutions.

Diese Aufgabe wird bei einem Gerät der gattungsgemäßen Art dadurch gelöst, dass der Verdichter, der Wasserabscheider, der Feinfilter und die Mittel zur Schalldämpfung in einem einzigen Gerätegehäuse untergebracht und unmittelbar miteinander verbunden sind und das Gerätegehäuse aus einem abnehmbaren Oberteil und einem Unterteil besteht, dass der Verdichter im Oberteil angeordnet ist und von den Mitteln zur Schalldämpfung umgeben ist, dass im Unterteil des Gerätegehäuses der Wasserabscheider angeordnet ist, wobei das dort abgeschiedene Wasser in einem Wassersammelbehälter gesammelt wird, der bei Erreichen eines bestimmten Füllstandes mittels einer angeschlossenen Pumpe automatisch entleert wird, dass im oberen Bereich des Unterteils der Feinfilter angeordnet ist, wobei der Saugmotor des Verdichters und der Feinfilter so zueinander angeordnet sind, dass der saugseitige Teil des Saugmotors in den Feinfilter hineinragt, dass am Unterteil des Gerätegehäuses wenigstens ein Anschluss-Stutzen zum Anschließen eines Trocknungsluftschlauches vorgesehen ist, so dass der dort in das Gerät gelangende Saugluft-Volumenstrom zunächst in den Wasserabscheider gelangt und von dort durch den Feinfilter zum Verdichter strömt, und dass im Gerätegehäuse wenigstens eine Öffnung vorgesehen ist, durch die der Saugluft-Volumenstrom das Gerät wieder verlassen kann.This object is achieved in a device of the generic type characterized in that the compressor, the water separator, the fine filter and the means for sound attenuation in housed in a single device housing and are connected directly to each other and the device housing consists of a removable upper part and a lower part, that the compressor is arranged in the upper part and is surrounded by the means for soundproofing, that in the lower part of the device housing, the water separator is arranged, which there separated water is collected in a water collection container, which is automatically emptied when reaching a certain level by means of a connected pump, that in the upper part of the lower part of the fine filter is arranged, the suction motor of the compressor and the fine filter are arranged to each other so that the suction-side part protrudes into the suction filter in the fine filter, that at least one connection piece for connecting a drying air hose is provided at the bottom of the device housing, so that the there reaching into the device suction air volume flow first into the Wasserabscheide r and flows from there through the fine filter to the compressor, and that in the device housing at least one opening is provided through which the suction air volume flow can leave the device again.

Dadurch wird ein im Vergleich zum Stand der Technik vollkommen anders konzipiertes Gerät bereitgestellt, denn es werden die bisher schon bekannten Einzelkomponenten (Verdichter, Wasserabscheider, Feinfilter sowie Schalldämpfer) nicht mehr als einzelne, getrennt in verschiedenen Gehäusen untergebrachte Gerätschaften raumfordernd miteinander verbunden, sondern sie werden auf engstem Raum in einem einzigen Gerätegehäuse kombiniert und untergebracht. Gleichwohl werden von den einzelnen Komponenten, wie dem Verdichter, dem Wasserabscheider, dem Feinfilter und den Mitteln zur Schalldämpfung, die schon bisher von diesen Gerätekomponenten ausgeübten Funktionen erbracht. Durch die vollkommen neuartige Anordnung dieser Einzelkomponenten in dem Gerätegehäuse entfällt auch die bisher bekannte und zum Beispiel in der deutschen Gebrauchsmusterschrift DE 20 2011 103 836 U1 und der deutschen Patentschrift DE 10 2012 007 273 B4 beschriebene "Verschlauchung" derartiger Gerätekomponenten, das heißt die Verbindung dieser Gerätekomponenten untereinander durch Schläuche, um den Durchfluss des Saugluft-Volumenstromes zu gewährleisten. Während also bei den bisher bekannten Dämmschichttrocknungs-Systemen Einzelkomponenten wie Verdichter und Wasserabscheider relativ raumgreifend nebeneinander im Raum oder turmartig übereinander aufgestellt werden müssen, kann nun das singuläre Gerät gemäß der Erfindung genutzt werden, in dem sämtliche Einzelgeräte-Komponenten integriert sind. Dabei ist die Gerätegröße im Vergleich zu den vorgenannten beispielsweise turmartigen Dämmschichttrocknungsgeräten wesentlich geringer. Während ein derartiger "Geräteturm" mit Wasserabscheider, Hepa-Filter, Verdichter und Schalldämpfer oft eine Höhe zwischen ungefähr 1,25 bis 1,80 Metern aufweist, beträgt nun die Höhe des Gerätegehäuses des erfindungsgemäßen Gerätes nur noch 0,60 Meter. Das erfindungsgemäße Gerät ist also wesentlich kleiner und platzsparender und folglich auch viel leichter als die bisherigen Gerätekombinationen.As a result, a completely differently designed compared to the prior art device is provided because the previously known individual components (compressor, water, fine filter and muffler) are no longer connected as a single space separately housed in different housings equipment, but they are combined and accommodated in a confined space in a single device housing. Nevertheless, of the individual components, such as the compressor, the water separator, the fine filter and the means for soundproofing, the previously performed by these device components functions performed. Due to the completely novel arrangement of these individual components in the device housing also eliminates the previously known and, for example, in the German utility model DE 20 2011 103 836 U1 and the German patent DE 10 2012 007 273 B4 described "tubing" of such device components, that is, the connection of these device components with each other through hoses to ensure the flow of the suction air volume flow. While so in the previously known Dämmschichttrocknungs-systems individual components such as compressors and water separators are placed relatively large space next to each other in the room or tower above the other must, the singular device according to the invention can now be used, in which all the individual device components are integrated. The device size is much lower compared to the aforementioned, for example, tower-like Dämmschichttrocknungsgeräten. While such a "device tower" with water separator, Hepa filters, compressors and silencers often has a height between about 1.25 to 1.80 meters, the height of the device housing of the device according to the invention is now only 0.60 meters. The device according to the invention is thus much smaller and space-saving and therefore much lighter than the previous device combinations.

Gemäß der Erfindung wird vorgeschlagen, dass der Saugmotor und der Feinfilter so zueinander angeordnet sind, dass der saugseitige Teil des Saugmotors in den Feinfilter hineinragt. Dies führt zu einer weiteren erheblichen Platzersparnis und damit letztlich auch zu einer Reduzierung der Größe bzw. des Volumens des Gerätegehäuses. Die Der genannte Feinfilter hat nämlich üblicherweise eine kreisringförmige Ausbildung. Dies wird nun hier ausgenutzt, indem der innerhalb dieses Kreisrings befindliche offene Raum verwendet wird, das heißt der saugseitige Teil des Saugmotors ragt in diesen offenen Bereich hinein.According to the invention it is proposed that the suction motor and the fine filter are arranged to each other so that the suction-side part of the suction motor protrudes into the fine filter. This leads to a further considerable space savings and thus ultimately to a reduction in the size or the volume of the device housing. The said fine filter usually has an annular shape. This is now exploited here by the open space located within this annulus is used, that is, the suction-side part of the suction motor protrudes into this open area.

Die geringe Baugröße des erfindungsgemäßen Geräts bringt auch den Vorteil mit, dass das Einlagern und Transportieren (zum Beispiel in Kraftfahrzeugen) solcher Geräte sehr platzsparend erfolgen kann. Dies gilt besonders dann, wenn die Geräte stapelbar ausgebildet sind. Kleine kompakte Geräte sind auch für die Dämmschichttrocknung von zentraler Bedeutung, da oftmals für die Trocknung nicht viel Platz zur Verfügung steht. So müssen oft Trocknungsmaßnahmen in Privathaushalten, in kleinen Küchen oder in Badezimmern durchgeführt werden, die darüber hinaus während der Schadenssanierung auch weiter genutzt werden sollen.The small size of the device according to the invention also has the advantage that the storage and transport (for example, in motor vehicles) such devices can be done very compactly. This is especially true when the devices are stackable. Small compact units are also of central importance for drying the insulation, as there is often not much space available for drying. For example, drying measures often have to be carried out in private households, in small kitchens or in bathrooms, which, in addition, should continue to be used during damage remediation.

Ein weiterer großer Vorteil des erfindungsgemäßen Gerätes ist darin zu sehen, dass durch den Umstand, dass die Einzelkomponenten (Wasserabscheider, Feinfilter, Verdichter und Schalldämpfer) nicht mehr miteinander verbunden bzw. verschlaucht werden müssen, dem Anwender insofern Zeit erspart wird, als er beim erfindungsgemäßen Gerät eine solche Verbindung erst gar nicht mehr herstellen muss.Another great advantage of the device according to the invention is to be seen in the fact that the fact that the individual components (water, fine filter, compressor and muffler) no longer need to be connected or hideaway with each other, the user will save time so far as he in the inventive Device does not need to make such a connection anymore.

Er muss also das Gerät lediglich an die Stromversorgung anschließen (mit nur noch einem einzigen Stromkabel, während früher für jede Gerätekomponente ein eigenes Stromkabel anzuschließen war), anschalten und mit den an sich schon bekannten Verfahren und den am Gerätegehäuse befindlichen Bedienelementen einsetzen. Damit ist letztlich das neue erfindungsgemäße Gerät auch wesentlich weniger anfällig für Fehler und Störungen im Vergleich zu den bisher bekannten Gerätekombinationen. Während also bei dem erfindungsgemäßen Gerät lediglich ein Stromkabel erforderlich ist, werden bei einem herkömmlichen Geräteturm wenigstens zwei Stecker benötigt, das heißt man muss den Stecker des Verdichters in die Steckdose des Wasserabscheiders stecken, damit der Geräteturm ordnungsgemäß funktionieren kann. Denn wenn der Wasserabscheider nicht in der Lage sein sollte, die angesaugte Wassermenge abzupumpen, dann wird der Verdichter bei den bisher bekannten Gerätekombinationen ausgeschaltet, damit kein weiteres Wasser aus der Dämmschicht gefördert wird. Allerdings hat dies immer wieder zu Fehlern geführt, weil eben gerade das nicht von den Handwerkern richtig gemacht wird. Solche Fehler werden nun mit dem erfindungsgemäßen Gerät vermieden.All he has to do is connect the device to the power supply (with only one power cable, whereas a separate power cable had to be connected for each device component in the past), switch it on and use the familiar procedures and controls on the device housing. Thus, ultimately, the new device according to the invention is also much less susceptible to errors and interference compared to the previously known device combinations. Thus, while only a power cable is required in the device according to the invention, at least two plugs are required in a conventional appliance tower, that is, you have to plug the plug of the compressor into the socket of the water separator, so that the device tower can work properly. Because if the water separator should not be able to pump the sucked amount of water, then the compressor is turned off in the previously known device combinations, so that no more water is conveyed from the insulation layer. However, this has always led to mistakes, because just that is not done right by the craftsmen. Such errors are now avoided with the device according to the invention.

Die erfindungsgemäße Lösung führt aus den oben schon genannten Gründen auch zu einer Materialersparnis, denn man spart sich einen Großteil des bisher notwendigen Konfektionierens (Zuschneiden) der Schläuche, die zum Verbindung der Einzelkomponenten erforderlich sind. Es entfällt also die schon oben beschriebene "Verschlauchung" der bisher einzeln verwendeten Gerätekomponenten. Dies führt wiederum auch zu einer Platzersparnis beim Transport der Gerätschaften zur Schadensstelle, also beispielsweise einer Baustelle.The solution according to the invention also leads, for the reasons already mentioned above, to a saving of material, since it saves a large part of the hitherto necessary assembly (cutting) of the hoses, which are required for the connection of the individual components. It therefore eliminates the "tubing" already described above the previously used individually device components. This in turn also leads to a saving of space during transport of the equipment to the point of damage, so for example a construction site.

Die platzsparende Bauweise und Unterbringung der einzelnen Gerätekomponenten in dem Gerätegehäuse des erfindungsgemäßen Gerätes werden weiter unten noch näher beschrieben werden. Die kompaktere und leichtere Bauweise des erfindungsgemäßen Gerätes wird also auch durch die Verwendung des schon beschriebenen kleineren und leichteren, jedoch sehr hochleistungsfähigen Saugmotors in dem Verdichter ermöglicht. Dieser Verdichter mit dem Saugmotor stellt auch das zentrale Bauteil des Gerätes dar. Durch den Feinfilter saugt der Saugmotor den Luftstrom aus der Dämmschicht an. Der Saugluft-Volumenstrom bzw. die feuchte Luft wird also aus der Dämmschicht durch wenigstens einen Trocknungsluftschlauch zu dem erfindungsgemäßen Gerät transportiert und gelangt über dort vorhandene Anschluss-Stutzen zunächst in den Wasserabscheider, von dort durch den Feinfilter zum Verdichter und schließlich durch wenigstens eine im Gerätegehäuse vorhandene Öffnung wieder aus dem Gerät heraus.The space-saving design and placement of the individual device components in the device housing of the device according to the invention will be described in more detail below. The more compact and lighter construction of the device according to the invention is therefore also made possible by the use of the previously described smaller and lighter, but very high-performance suction motor in the compressor. This compressor with the naturally aspirated engine is also the central component of the device. The suction motor sucks the airflow out of the insulating layer through the fine filter. The suction air volume flow or the moist air is thus from the insulation layer transported at least one drying air hose to the device according to the invention and passes through there existing connection nozzle first in the water separator, from there through the fine filter to the compressor and finally through at least one existing in the device housing opening back out of the device.

Für das Herausführen des Saugluft-Volumenstroms aus dem Gerät werden vor allem zwei vorteilhafte Alternativlösungen vorgeschlagen. Die erste Alternativlösung besteht darin, dass die Öffnung(en) als Luftdurchtrittsöffnung(en) im Oberteil des Gerätegehäuses ausgebildet ist bzw. sind, so dass der Saugluft-Volumenstrom dadurch in die Umgebung entweichen kann. Derartige Luftdurchtrittsöffnungen können beispielsweise schlitzförmig oder gitterförmig gestaltet sein, wobei die Öffnungen so groß bzw. so dimensioniert sein müssen, dass der Luftaustritt auch bei großen Saugluft-Volumenstrommengen problemlos erfolgen kann.For the lead out of the suction air volume flow from the device, especially two advantageous alternative solutions are proposed. The first alternative solution is that the opening (s) is or are formed as an air passage opening (s) in the upper part of the device housing, so that the suction air volume flow can thereby escape into the environment. Such air passage openings may for example be designed slit-shaped or lattice-shaped, wherein the openings must be so large or dimensioned so that the air outlet can be done easily even with large volumes of suction air volume flow.

Die zweite Alternativlösung besteht darin, dass die Öffnung einen Stutzen im Oberteil des Gerätegehäuses umfasst, an den ein Schlauch anschließbar ist, durch den der Saugluft-Volumenstrom in die Umgebung hinaus geführt wird. Wenn also ein entsprechender Schlauch an den Stutzen angeschlossen ist, verlässt der Saugluft-Volumenstrom das Gerät durch diesen Schlauch. Der Schlauch kann dann auch recht lang sein, so dass der Saugluft-Volumenstrom, bei dem es sich dann nämlich um relativ warme Luft handelt, auch nicht in den momentan zu entfeuchtenden Raum gelangt, sondern beispielsweise nach draußen außerhalb des Gebäudes geführt wird. Da der Saugluft-Volumenstrom, wie zuvor gesagt, im Wesentlichen aus relativ warmer Luft besteht, wird bei dieser Alternativlösung vermieden, dass sich die Umgebungsluft in dem zu entfeuchtenden Raum wieder unnötig erwärmt. Bei Verwendung dieser Alternativlösung kommt also der zusätzliche Vorteil gemäß der Erfindung zum tragen, dass die im Gerät produzierte warme Luft aus dem Gerät hinaus geführt und auch erst außerhalb des zu entfeuchtenden Raumes bzw. des Gebäudes entweichen kann.The second alternative solution is that the opening comprises a nozzle in the upper part of the device housing, to which a hose can be connected, through which the suction air volume flow is led out into the environment. Thus, if a corresponding hose is connected to the nozzle, the suction air volume flow leaves the device through this hose. The hose can then be quite long, so that the suction air volume flow, which is then namely, namely, relatively warm air, not even gets into the momentarily dehumidifying room, but is led outside, for example, outside the building. Since the suction air volume flow, as stated above, consists essentially of relatively warm air, this alternative solution prevents the ambient air in the room to be dehumidified from being unnecessarily warmed up again. When using this alternative solution, therefore, the additional advantage according to the invention comes into play, that the warm air produced in the device out of the device and can escape only outside the room to be dehumidified or the building.

Ein weiterer Vorteil der Erfindung besteht in der Pumpe, die an den Wassersammelbehälter angeschlossen ist. Bei Erreichen eines bestimmten Füllstandes wird das Wasser aus dem Wasserabscheider mittels dieser Pumpe automatisch entleert. Dadurch ist eine kontinuierliche Durchführung der Trocknungsmaßnahme möglich, denn der Verdichter bzw. das Gerät muss nicht mehr wie bisher vorübergehend abgeschaltet werden, um den Wassersammelbehälter zu entleeren. Das erfindungsgemäße Gerät spart also auch dadurch dem Nutzer Zeit und Arbeit. Das Gerät bzw. Gerätegehäuse muss also auch nicht geöffnet werden, um das Wasser abzulassen oder herauszuholen. Vorzugsweise weist das Gerät einen Wasserpumpenablaufstutzen auf, damit das Wasser aus dem Gerät in praktischer Weise entleert werden kann. Der große Vorteil bei dem erfindungsgemäßen Gerät im Vergleich zu den bekannten Dämmschicht-Trocknungssystemen besteht also in der Tatsache, dass der Wasserabscheider mit dem Wassersammelbehälter und der Verdichter nun fest bzw. unmittelbar und zwingend miteinander verknüpft sind. Schafft die Pumpe es also nicht, das Wasser so schnell abzupumpen, wie es vom Saugmotor des Verdichters angesaugt wird, wird der Saugmotor automatisch abgeschaltet. Dafür sorgt eine in dem Gerät enthaltene Steuerungseinrichtung (mit einer Steuerplatine ausgestattet). Sie sorgt auch dafür, dass der Saugmotor erst dann wieder weiterläuft, wenn der Wassersammelbehälter leer gepumpt ist.Another advantage of the invention is the pump which is connected to the water collection tank. When a certain level is reached, the water from the water separator is automatically emptied by means of this pump. This is a continuous implementation of the drying measure possible because the compressor or the device no longer has to be temporarily switched off as before to empty the water collection container. The device according to the invention thus also saves the user time and work. The device or device housing must therefore not be opened to drain or remove the water. Preferably, the device has a water pump discharge nozzle, so that the water can be emptied from the device in a practical manner. The great advantage of the device according to the invention in comparison with the known insulation layer drying systems is therefore the fact that the water separator with the water collection container and the compressor are now firmly or directly and compulsorily linked together. Thus, if the pump fails to pump the water as fast as it is sucked in by the suction motor of the compressor, the suction motor is automatically switched off. This is ensured by a control device included in the device (equipped with a control board). It also ensures that the naturally aspirated engine does not continue until the water collection container is empty.

Das Gerätegehäuse besteht aus einem abnehmbaren Oberteil und einem Unterteil. Dies hat den Vorteil, dass das Oberteil abgenommen werden kann, wodurch alle im Gerät enthaltenen und wichtigen Gerätekomponenten freigelegt werden. Auf diese Weise können sie erforderlichenfalls leicht gewartet, gereinigt oder ausgetauscht werden.The device housing consists of a removable upper part and a lower part. This has the advantage that the upper part can be removed, which exposes all important and important device components contained in the device. In this way, they can be easily maintained, cleaned or replaced if necessary.

In einer bevorzugten Ausführungsform des erfindungsgemäßen Gerätes weisen das Oberteil und das Unterteil Mittel zum Lösen und Verbinden desselben voneinander bzw. miteinander auf. Solche Mittel können beispielsweise Arretierungsriegel sein, die an der Außenseite des Gerätegehäuses zur Verbindung des Oberteils und des Unterteils vorgesehen sind.In a preferred embodiment of the device according to the invention, the upper part and the lower part have means for releasing and connecting the same from each other or with each other. Such means may be, for example, locking latches provided on the outside of the device housing for connecting the upper part and the lower part.

Es ist zu betonen, dass das Gerätegehäuse erfindungsgemäß nicht unbedingt zweiteilig aus einem Oberteil und einem Unterteil bestehen muss, sondern dass auch als ein einteiliges Gehäuse ausgeführt sein kann. Die gestellte Aufgabe wird mit einem gattungsgemäßen Gerät zur Trocknung von Dämmschichten von Fußböden im Unterdruckverfahren also auch mit einer Alternativlösung gelöst, bei welcher der Verdichter, der Wasserabscheider, der Feinfilter und die Mittel zur Schalldämpfung in einem einzigen Gerätegehäuse untergebracht und unmittelbar miteinander verbunden sind und das Gerätegehäuse einteilig ausgeführt ist, dass der Verdichter im oberen Teil des Gerätegehäuses angeordnet ist und von den Mitteln zur Schalldämpfung umgeben ist, dass im unteren Teil des Gerätegehäuses der Wasserabscheider angeordnet ist, wobei das dort abgeschiedene Wasser in einem Wassersammelbehälter gesammelt wird, der bei Erreichen eines bestimmten Füllstandes mittels einer angeschlossenen Pumpe automatisch entleert wird, dass im oberen Bereich des unteren Teils des Gerätegehäuses der Feinfilter angeordnet ist, wobei der Saugmotor des Verdichters und der Feinfilter so zueinander angeordnet sind, dass der saugseitige Teil des Saugmotors in den Feinfilter hineinragt, dass am unteren Teil des Gerätegehäuses wenigstens ein Anschluss-Stutzen zum Anschließen eines Trocknungsluftschlauches vorgesehen ist, so dass der dort in das Gerät gelangende Saugluft-Volumenstrom zunächst in den Wasserabscheider gelangt und von dort durch den Feinfilter zum Verdichter strömt, und dass im Gerätegehäuse wenigstens eine Öffnung vorgesehen ist, durch die der Saugluft-Volumenstrom das Gerät wieder verlassen kann.It should be emphasized that the device housing according to the invention does not necessarily have to consist of a top part and a bottom part in two parts, but that it can also be designed as a one-part housing. The above object is achieved with a generic device for drying insulation layers of floors in the vacuum process so with an alternative solution in which the Compressor, the water separator, the fine filter and the means for soundproofing are housed in a single device housing and connected directly to each other and the device housing is made in one piece, that the compressor is located in the upper part of the device housing and is surrounded by the means for soundproofing that in lower part of the device housing of the water separator is arranged, wherein the water deposited there is collected in a water collection container, which is automatically emptied when reaching a certain level by means of a connected pump, that in the upper part of the lower part of the device housing the fine filter is arranged, wherein the Suction motor of the compressor and the fine filter are arranged to each other so that the suction-side part of the suction motor protrudes into the fine filter that vorg at the lower part of the device housing at least one connection piece for connecting a drying air hose it is seen, so that the there reaching into the device suction air volume flow first passes into the water and flows from there through the fine filter to the compressor, and that in the device housing at least one opening is provided, through which the suction air volume flow can leave the device again ,

Vorteilhaft ist es, wenn die Mittel zur Schalldämpfung aus einem an sich bekannten Material wie Schaumstoff bestehen und um den Saugmotor herum angeordnet sind. Im Prinzip würde das erfindungsgemäße Gerät übrigens auch ohne Mittel zur Schalldämpfung funktionieren. Diese Mittel könnten also auch entfallen, wobei das Gerät dann aber sehr laut arbeiten würde.It is advantageous if the means for soundproofing consist of a material known per se such as foam and are arranged around the suction motor. Incidentally, in principle, the device according to the invention would also function without means for soundproofing. These funds could also be omitted, but the device would then work very loud.

Ferner ist zu beachten, dass die vorgenannten erfindungsgemäßen Geräte ohne einen Hepa-Filter ausgestattet sein können, so dass der Saugluft-Volumenstrom vom Wasserabscheider durch den Feinfilter direkt zum Verdichter gelangt. Solche Feinfilter und Hepa-Filter sind handelsüblich und bekannt. Bei der Dämmschichttrocknung hat der Feinfilter die Aufgabe, aus dem angesaugten Volumenstrom Partikel herauszufiltern, welche den Saugmotor beschädigen könnten, und außerdem der Hepa-Filter die Aufgabe, die Luft für die Umwelt zu reinigen. Ein Hepa-Filter ist daher dann entbehrlich, wenn die Umgebungsbedingungen für Menschen unkritisch sind, also zum Beispiel in einem Rohbau, in Kellerräumen oder an anderen Orten, wo sich während des Trocknungsvorgangs keine Menschen aufhalten.Furthermore, it should be noted that the aforementioned devices according to the invention can be equipped without a Hepa filter, so that the suction air volume flow from the water separator passes through the fine filter directly to the compressor. Such fine filters and Hepa filters are commercially available and known. In the case of insulating layer drying, the fine filter has the task of filtering out of the sucked volume flow particles which could damage the suction motor, and also of the Hepa filter the task of purifying the air for the environment. A Hepa filter is therefore unnecessary if the environmental conditions for people are not critical, so for example in a shell, in cellars or other places where no people are during the drying process.

Es wird aber auch eine Ausführungsform der vorgenannten Varianten des erfindungsgemäßen Gerätes vorgeschlagen, bei der zusätzlich zum Feinfilter ein Hepa-Filter in einer Filtereinheit angeordnet ist, wobei der saugseitige Teil des Saugmotors auch in den Hepa-Filter hineinragt.However, an embodiment of the abovementioned variants of the device according to the invention is also proposed in which, in addition to the fine filter, a Hepa filter is arranged in a filter unit, wherein the suction-side part of the suction motor also protrudes into the Hepa filter.

Das erfindungsgemäße Gerät ist besonders vorteilhaft als fahrbares Gerät ausgebildet ist, wozu im unteren Bereich des Gerätegehäuses Räder vorhanden sind. So kann der Nutzer das Gerät schnell und ohne Kraftaufwand umstellen oder an einen anderen Ort verbringen. Ebenfalls erleichtert die Handhabung des Gerätes die Ausführungsform, bei der an einer Seite des Gerätegehäuses ein Bügel oder eine Stange mit einem Griff zum Verfahren des Gerätes vorhanden sind. Damit kann der Nutzer das Gerät leicht schieben oder ziehen.The device according to the invention is particularly advantageous as a mobile device is formed, for which purpose in the lower region of the device housing wheels are present. So the user can change the device quickly and without effort or spend at another location. Also, the handling of the device facilitates the embodiment in which a bracket or a rod with a handle for moving the device are present on one side of the device housing. This allows the user to easily slide or pull the device.

Die Erfindung wird nun nachstehend anhand der folgenden schematischen Zeichnungen näher erläutert. Es zeigen

Fig. 1
eine perspektivische Ansicht schräg von oben auf eine Ausführungsform des erfindungsgemäßen Gerätes, an dem ein Bedienfeld und drei Anschluss-Stutzen zum Anschließen von drei Trocknungsluftschläuchen angeordnet sind,
Fig. 2
eine perspektivische Ansicht schräg von der Seite auf eine schon bekannte Anordnung von Geräten zur Trocknung von Dämmschichten im Unterdruckverfahren (Stand der Technik),
Fig. 3
eine Schnittansicht des in Fig.1 gezeigten Gerätes,
Fig. 4
eine Ansicht (Explosionsdarstellung) schräg von oben auf das in den Fig. 1 und 3 gezeigte Gerät und
Fig. 5
eine Ansicht schräg von oben auf zwei aufeinander gestapelte erfindungsgemäße Geräte.
The invention will now be explained in more detail below with reference to the following schematic drawings. Show it
Fig. 1
a perspective view obliquely from above on an embodiment of the device according to the invention, on which a control panel and three connection pieces are arranged for connecting three drying air hoses,
Fig. 2
a perspective view obliquely from the side of an already known arrangement of devices for drying insulation layers in the vacuum method (prior art),
Fig. 3
a sectional view of the in Fig.1 shown device,
Fig. 4
a view (exploded view) obliquely from above on the in the Fig. 1 and 3 shown device and
Fig. 5
a view obliquely from above on two stacked devices according to the invention.

Anhand der Fig. 1 sowie 3 bis 5 wird eine Ausführungsform des erfindungsgemäßen Gerätes 1 beschrieben, das zur Trocknung von Dämmschichten von Fußböden im Unterdruckverfahren vorgesehen ist. Das Funktionsprinzip des Unterdruckverfahrens wurde schon in der Beschreibungseinleitung näher erläutert und ist an sich nicht neu.Based on Fig. 1 and FIGS. 3 to 5 describe an embodiment of the device 1 according to the invention, which is provided for drying insulating layers of floors in the vacuum method. The functional principle of the vacuum method has already been explained in more detail in the introduction to the description and is not new in itself.

Wie in Fig. 1 bereits gut zu erkennen ist, handelt es sich um ein Gerät 1 mit einem Gerätegehäuse 2, das in einer sehr kompakten Bauweise ausgeführt ist. Damit handelt es sich um ein im Vergleich zu bisher bekannten Anordnungen von Geräten zur Dämmschichttrocknung wesentlich kleineres Gerät. Eine derartige, zum Stand der Technik gehörende Anordnung 3 zur Trocknung von Dämmschichten von Fußböden ist in Fig. 2 zur Veranschaulichung und auch zum Größenvergleich mit dem neuen Gerät 1 dargestellt. Die Anordnung 3 gemäß dem Stand der Technik umfasst einzelne, in Form eines Geräteturms übereinander gestapelte Einzelkomponenten, die üblicherweise auch heutzutage bei der Dämmschichttrocknung eingesetzt werden. Ganz unten in der Anordnung 3 befindet sich demnach der Wasserabscheider 4. Die feuchte Luft aus der Dämmschicht gelangt durch drei Trocknungsluftschläuche 5a, 5b und 5c in den Wasserabscheider 4. Auf dem Wasserabscheider 4 steht eine ebenfalls in einem separaten Gehäuse untergebrachte Filtereinheit 6, die einen Hepa-Filter enthält. Auf der Filtereinheit 6 steht wiederum der Verdichter 7 und darüber, also ganz oben, der Schalldämpfer 8. Fig. 2 zeigt auch, wie diese einzelnen Komponenten durch Schläuche miteinander verbunden sind. Um also eine Trocknungsmaßnahme durchzuführen, müssen zunächst diese Einzelkomponenten aufeinander gestellt und miteinander verbunden werden, womit ein recht hoher Zeit- und Arbeitsaufwand verbunden ist.As in Fig. 1 It can already be seen well, it is a device 1 with a device housing 2, which is designed in a very compact design. This is a much smaller compared to previously known arrangements of devices for Dämmschichttrocknung device. Such, belonging to the prior art arrangement 3 for drying insulating layers of floors is in Fig. 2 for illustration and also for size comparison with the new device 1 shown. The prior art arrangement 3 comprises individual components stacked one above the other in the form of a device tower, which are usually also used today in insulating-layer drying. The humid air from the insulating layer passes through three drying air hoses 5a, 5b and 5c in the water separator 4. On the water separator 4 is also housed in a separate housing filter unit 6, the one Hepa filter contains. On the filter unit 6 in turn is the compressor 7 and above, so right at the top, the muffler. 8 Fig. 2 also shows how these individual components are interconnected by tubing. So to carry out a drying measure, these individual components must first be placed on each other and connected to each other, which is associated with a considerable amount of time and effort.

Das in Fig. 1 gezeigte Ausführungsbeispiel des erfindungsgemäßen Gerätes 1 ist so konzipiert und konstruiert, dass ein wesentlich geringerer Zeit- und Arbeitsaufwand beim Aufbau des Dämmschichttrocknungssystems und bei der Durchführung der Dämmschichttrocknung nötig ist. Wie dies geschieht, wird nun anhand der Fig. 3 und 4 im Einzelnen beschrieben:
Wie bereits ausgeführt, ist das in Fig. 3 gezeigte Gerät zur Trocknung von Dämmschichten von Fußböden im Unterdruckverfahren vorgesehen. Dazu umfasst das Gerät einen Verdichter 9, der einen Saugmotor 10 enthält. Dieser Saugmotor 10 hat die Aufgabe, wie dies bei solchen Dämmschicht-Trocknungssystemen bereits bekannt ist, die feuchte Luft aus der in den Zeichnungen nicht dargestellten Dämmschicht abzusaugen. Dazu werden in der Praxis Trocknungsluftschläuche benutzt, die häufig in hierzu vorbereitete Absaugöffnungen im Bereich einer Randfuge des Fußbodens (z.B. ein Estrich) eingesteckt sind. Auf diese Weise saugt der Verdichter 9 durch Trocknungsluftschläuche 11 die in der Dämmschicht vorhandene feuchte Luft an, die auch als Luft-Wasser-Gemisch oder Prozess-Luft bezeichnet wird. Ein solcher Trocknungsluftschlauch 11 ist in Fig. 3 zu sehen, wie er an dem Gerätegehäuse 2 mittels eines Anschluss-Stutzens 12 angeschlossen ist. In Fig. 1 ist zu erkennen, dass das Gerät 1 insgesamt drei solcher Anschluss-Stutzen 12 aufweist, so dass insgesamt drei Trocknungsluftschläuche 11 an das Gerät 1 angeschlossen werden können. Durch die Trocknungsluftschläuche 11 und die Anschluss-Stutzen 12 gelangt die Prozess-Luft in den im Unterteil 13 des Gerätegehäuses 2 angeordneten Wasserabscheider 14. Das Grundprinzip eines solchen Wasserabscheiders ist an sich bekannt und besteht darin, das durch die Trocknungsluftschläuche 11 aus der Dämmschicht angesaugte Luft-Wasser-Gemisch zu trennen, so dass das in der feuchten Luft enthaltene Wasser abgeschieden wird. Der Funktionsbetrieb eines solchen Wasserabscheiders muss daher hier nicht in allen Einzelheiten beschrieben werden. Es gibt hier am Gerät 1 aber einige konstruktive Besonderheiten beim Wasserabscheider 14, die weiter unten noch genauer beschrieben werden.This in Fig. 1 shown embodiment of the device 1 according to the invention is designed and constructed so that a much less time and effort is required in the construction of Dämmschichttrocknungssystems and in the implementation of Dämmschichttrocknung. How this happens is now based on the Fig. 3 and 4 described in detail:
As already stated, this is in Fig. 3 shown apparatus for drying of insulating layers of floors provided by the vacuum method. This includes the Device a compressor 9, which includes a suction motor 10. This suction motor 10 has the task, as is already known in such insulating layer drying systems, to suck the moist air from the insulating layer, not shown in the drawings. For this purpose, drying air hoses are used in practice, which are often plugged into this prepared suction in the region of an edge joint of the floor (eg a screed). In this way, the compressor 9 sucks by means of drying air hoses 11 to the existing in the insulating moist air, which is also referred to as air-water mixture or process air. Such a drying air hose 11 is in Fig. 3 to see how it is connected to the device housing 2 by means of a connection spigot 12. In Fig. 1 It can be seen that the device 1 has a total of three such connecting pieces 12, so that a total of three drying air hoses 11 can be connected to the device 1. Through the drying air hoses 11 and the connecting piece 12, the process air enters the arranged in the lower part 13 of the device housing 2 water 14. The basic principle of such a water separator is known per se and consists of sucked through the drying air hoses 11 from the insulation layer air Separate water mixture so that the water contained in the humid air is separated. The functional operation of such a water separator must therefore not be described in detail here. There are here on the device 1 but some design features in the water separator 14, which will be described in more detail below.

Während also der Wasserabscheider 14 im Unterteil 13 des Gerätegehäuses 2 angeordnet ist, befindet sich der schon erwähnte Verdichter 9 mit dem Saugmotor 10 im Oberteil 15 des Gerätegehäuses 2. Das Gerätegehäuse 2 besteht also aus dem Oberteil 15 und dem Unterteil 13, wobei der Oberteil 15 abnehmbar ausgebildet ist. Dies bedeutet, dass das Oberteil 15 und das Unterteil 13 voneinander getrennt bzw. gelöst und auch wieder miteinander verbunden werden können. Zum Lösen aber auch zum erneuten festen Verbinden des Oberteils 15 mit dem Unterteil 13 ist eine Verriegelungsvorrichtung 16 am Gerätegehäuse 2 vorgesehen, die nicht näher erklärt werden muss.Thus, while the water separator 14 is arranged in the lower part 13 of the device housing 2, the already mentioned compressor 9 is located with the suction motor 10 in the upper part 15 of the device housing 2. The device housing 2 thus consists of the upper part 15 and the lower part 13, wherein the upper part of the 15th is designed removable. This means that the upper part 15 and the lower part 13 can be separated or loosened from one another and also connected to one another again. To release but also for re-firm connection of the upper part 15 with the lower part 13, a locking device 16 is provided on the device housing 2, which need not be explained in detail.

In dem Gerätegehäuse 2 sind außer dem Verdichter 9 und dem Wasserabscheider 14 auch noch eine Filtereinheit bestehend aus einem Feinfilter 17 und einem Hepa-Filter 18 vorhanden. Wie schon Fig. 3 erkennen lässt, sind all diese Einzelkomponenten, also der Verdichter 9, der Wasserabscheider 14 sowie der Feinfilter 17 und Hepa-Filter 18 in dem Gerätegehäuse 2 untergebracht und unmittelbar miteinander verbunden. Dies schließt auch Mittel zur Schalldämmung 19 ein, welche den Verdichter 9 bzw. den Saugmotor 10 im Oberteil 15 umgeben. Diese Mittel zur Schalldämpfung 19 sind vorzugsweise aus einem offenporigem Schaumstoffmaterial hergestellt.In addition to the compressor 9 and the water separator 14, a filter unit consisting of a fine filter 17 and a Hepa filter 18 is also present in the device housing 2. How nice Fig. 3 can be seen, all these individual components, ie the compressor 9, the water separator 14 and the fine filter 17 and Hepa filter 18 are housed in the device housing 2 and connected directly to each other. This also includes means for sound insulation 19, which surround the compressor 9 and the suction motor 10 in the upper part 15. These means for soundproofing 19 are preferably made of an open-cell foam material.

Der Saugmotor 10 ist auf einer Grundplatte 20 montiert, die zum Oberteil 15 gehört. Der Saugluft-Volumenstrom, der vom Saugmotor 10 generiert bzw. angesaugt wird und durch den Trocknungsluftschlauch 11 und den Wasserabscheider 14 kommt, strömt somit von diesem Wasserabscheider 14 zunächst durch den Hepa-Filter 18 und den manschettenförmige Feinfilter 17, der den Hepa-Filter 18 umgibt. Der Hepa-Filter 18 bzw. Feinfilter 17 ist unter der Grundplatte 20 mittels eines Metallwinkelstückes 21 montiert. Der manschettenförmige Feinfilter 17 wird dann einfach um den Hepa-Filter 18 herumgelegt. Wie schon oben ausgeführt, sind derartige Hepa-Filter und Feinfilter in kreisringförmiger Ausbildung hergestellt.The suction motor 10 is mounted on a base plate 20 which belongs to the upper part 15. The suction air volume flow, which is generated or sucked by the suction motor 10 and comes through the drying air hose 11 and the water separator 14, thus flows from this water separator 14 first through the Hepa filter 18 and the cuff-shaped fine filter 17, the Hepa filter 18th surrounds. The Hepa filter 18 or fine filter 17 is mounted under the base plate 20 by means of a metal angle piece 21. The cuff-shaped fine filter 17 is then simply wrapped around the Hepa filter 18. As stated above, such Hepa filters and fine filters are made in an annular design.

Fig. 3 lässt auch erkennen, dass die Filtereinheit mit dem Feinfilter 17 und dem Hepa-Filter 18 eigentlich dem oberen Bereich des Unterteils 13 des Gerätegehäuses 2 zuzurechnen sind. In Fig. 3 ist auch zu erkennen, dass die Verbindung des Saugmotors 10 mit der Filtereinheit bestehend aus Feinfilter 17 und Hepa-Filter 18 sehr platzsparend erfolgt, indem der saugseitige Teil 22 des Saugmotors 10 so angeordnet ist, dass er in den inneren Bereich des kreisringförmigen Hepa-Filters 18 hineinragt. Auch dies trägt zur geringen Baugröße des Gerätes 1 wesentlich bei. Fig. 3 can also recognize that the filter unit with the fine filter 17 and the Hepa filter 18 are actually attributable to the upper portion of the lower part 13 of the device housing 2. In Fig. 3 It can also be seen that the connection of the suction motor 10 with the filter unit consisting of fine filter 17 and Hepa filter 18 is very space-saving by the suction-side part 22 of the suction motor 10 is arranged so that it in the inner region of the annular Hepa filter 18 protrudes. This also contributes significantly to the small size of the device 1.

Der druckseitige Teil 23 des Saugmotors 10 ist ebenfalls in Fig. 3 zu sehen und befindet sich im Oberteil 15. Am druckseitigen Teil 23 verlässt also der Saugluft-Volumenstrom den Saugmotor 10 bzw. Verdichter 9. Damit diese Luft das Gerät 1 auch wieder verlassen kann, sind im Oberteil 15 des Gerätegehäuses 2 Luftdurchtrittsöffnungen 24 vorgesehen. Diese sind in Fig. 1 an einer Seite des Oberteils 15 zu sehen und haben eine schlitzförmige Ausbildung. Auf der gegenüberliegenden Seite und nicht zu erkennen sind ebenfalls derartige Luftdurchtrittsöffnungen.The pressure-side part 23 of the suction motor 10 is also in Fig. 3 At the pressure-side part 23 so the suction air flow leaves the suction motor 10 and compressor 9. So that this air can leave the device 1 again, 2 air passage openings 24 are provided in the upper part 15 of the device housing. These are in Fig. 1 to see and have on one side of the upper part 15 a slit-shaped training. On the opposite side and not visible are also such air passage openings.

Es ist zu beachten, dass durch diese Luftdurchtrittsöffnungen zugleich Umgebungsluft in das Gerätegehäuse 2 gelangen kann. Dies ist auch deswegen notwendig und vorteilhaft, weil der Saugmotor 10 nicht nur den Saugluft-Volumenstrom generiert bzw. ansaugt, sondern zugleich - zum Zwecke seiner eigenen Kühlung bzw. der Kühlung seiner der Motorelektronik - Kühlluft von oben durch eine entsprechende Öffnung des Motors ansaugt und diese Kühlluft durch seitlich angeordnete Kühlluftaustrittsöffnungen 25 wieder nach außen abgegeben wird.It should be noted that at the same time ambient air can enter the device housing 2 through these air passage openings. This is also necessary and advantageous because the naturally aspirated engine 10 not only generates or sucks the suction air flow, but also - for the purpose of its own cooling or cooling of the engine electronics - sucking in cooling air from above through a corresponding opening of the engine and This cooling air is discharged through laterally arranged cooling air outlet openings 25 back to the outside.

Im Folgenden ist nun noch einmal die spezielle Ausbildung und Wirkungsweise des Wasserabscheiders 14 zu erläutern. Die Besonderheit dieses Wasserabscheiders 14 besteht darin, dass er einen großen Wassersammelbehälter 26 umfasst, in dem das anfallende Wasser aus dem Saugluft-Volumenstrom gesammelt und bei Bedarf abgepumpt wird. Hierzu ist eine Pumpe 27 vorgesehen, und zwar auf dem Boden des Wassersammelbehälters 26 (siehe Fig. 3). Um den Wasserstand zu erfassen, ist am Boden des Wassersammelbehälters 26 eine Sensorplatine 28 befestigt. Der Wasserabscheider 14 umfasst auch einen Tropfenabscheider 29 (in Englisch "Demister" genannt) sowie ein Prallblech 30. Die Anordnung und Form dieser an sich bekannten Bauteile - Tropfenabscheider 29 und Prallblech 30 - ist in Fig. 3 gut zu erkennen und sie sorgen zusätzlich dafür, dass die Feuchtigkeit in der angesaugten Luft reduziert wird und das somit abgeschiedene Wasser im Wassersammelbehälter 26 gesammelt wird. Die Konstruktion des erfindungsgemäßen Gerätes 1 ermöglicht es auch, dass der Tropfenabscheider 29 leicht dem Wassersammelbehälter 26 entnommen werden kann, so dass man den Wassersammelbehälter 26 und natürlich auch den Tropfenabscheider 29 gut reinigen kann. Auch die Größe und Form des Wassersammelbehälters 26 ist in Fig. 3 gut zu erkennen. Der Wassersammelbehälter 26 besitzt also Abmessungen, die weitgehend den Abmessungen des Unterteils 13 entsprechen. Damit wird also das Volumen des Unterteils 13 für den Wassersammelbehälter 26 so weit wie möglich ausgenutzt. Gleichzeitig sieht man in Fig. 3, dass auch durch die Anordnung der Filtereinheit mit Feinfilter 17 und Hepa-Filter 18 innerhalb des Wassersammelbehälters 26 der zur Verfügung stehende Raum optimal ausgenutzt wird.The specific training and mode of action of the water separator 14 will now be explained again. The peculiarity of this water separator 14 is that it comprises a large water collection container 26, in which the accumulated water is collected from the suction air volume flow and pumped out as needed. For this purpose, a pump 27 is provided, on the bottom of the water collection container 26 (see Fig. 3 ). In order to detect the water level, a sensor board 28 is attached to the bottom of the water collection container 26. The water separator 14 also includes a mist eliminator 29 (called "demister" in English) and a baffle plate 30. The arrangement and shape of these known per se - droplet 29 and baffle plate 30 - is in Fig. 3 In addition, they ensure that the moisture in the intake air is reduced and the water thus separated is collected in the water collection container 26. The construction of the device 1 according to the invention also makes it possible for the mist eliminator 29 to be easily removed from the water collecting container 26 so that the water collecting container 26 and of course the mist eliminator 29 can be thoroughly cleaned. Also, the size and shape of the water collection container 26 is in Fig. 3 clearly visible. The water collection container 26 thus has dimensions that largely correspond to the dimensions of the lower part 13. Thus, therefore, the volume of the lower part 13 for the water collection container 26 is utilized as much as possible. At the same time you can see in Fig. 3 that also by the arrangement of the filter unit with fine filter 17 and Hepa filter 18 within the water collection container 26 of the available space is optimally utilized.

Eine Geräteelektronikeinheit 31 sitzt - durch ein Blech 32 getrennt - separat im Oberteil 15 des Gerätegehäuses 2. Dort ist ebenfalls ein Bedienfeld 33 sowie der Ein- und Ausschalter 34 des Gerätes 1 platziert. Auch ein Netzanschluss 35 für die Stromversorgung des Gerätes 1 befindet sich im Oberteil 15. Fig. 3 zeigt auch ein an dem Netzanschluss 35 angeschlossenes Stromnetzkabel 36. Wie schon oben in der Beschreibungseinleitung ausgeführt, wird bei dem Gerät 1 nur ein einziges Stromnetzkabel 36 benötigt, während die früheren Gerätesysteme mehr als ein Netzkabel erfordern. Da auch die Pumpe 27 mit Strom versorgt werden muss, ist im Oberteil 15 eine Federkontaktleiste 37 angebracht, die den Strom in das Unterteil 13 leitet. Dazu ist im Unterteil 13 das Gegenstück zur Federkontaktleiste 37 montiert.A device electronics unit 31 sits - separated by a plate 32 - separately in the upper part 15 of the device housing 2. There is also a control panel 33 and the on-off switch 34 of the device 1 placed. A mains connection 35 for the power supply of the device 1 is located in the upper part 15. Fig. 3 also shows a power cord 36 connected to the power supply 35. As stated above in the introduction to the description, the apparatus 1 requires only a single power cable 36, whereas the previous equipment systems require more than one power cord. Since the pump 27 must be supplied with power, a spring contact strip 37 is mounted in the upper part 15, which conducts the current in the lower part 13. For this purpose, the counterpart to the spring contact strip 37 is mounted in the lower part 13.

Wenn nun das Gerät 1 in Betrieb genommen worden ist und sämtliche Einstellungen über das Bedienfeld 33 vom Benutzer vorgenommen wurden, kann dieser sofort mit der Dämmschichttrocknung beginnen. Durch die beschriebene Anordnung und Ausbildung der Einzelkomponenten kann der Dämmschichttrocknungsprozess mit dem Gerät 1 einfach und bequem durchgeführt werden. Dies schließt auch das Vermeiden etwaiger Fehler seitens des Handwerkers ein, die manchmal bei der Zusammenstellung der bisher getrennt installierten Einzelkomponenten aufgetreten sind. Dies liegt daran, dass sämtliche Einzelkomponenten nun im Gerätegehäuse 2 untergebracht, unmittelbar miteinander verbunden sowie aufeinander abgestimmt sind. Die Geräteelektronikeinheit 31 stellt im Übrigen den ordnungsgemäßen Ablauf der Dämmschichttrocknung mit diesem Gerät 1 sicher.Now, if the device 1 has been put into operation and all settings were made via the control panel 33 by the user, this can begin immediately with the insulation drying. By means of the described arrangement and design of the individual components, the insulating-layer drying process with the device 1 can be carried out simply and conveniently. This also includes the avoidance of any errors on the part of the craftsman, which sometimes occurred in the compilation of the previously separately installed individual components. This is because all the individual components are now housed in the device housing 2, directly connected to each other and matched. Incidentally, the device electronics unit 31 ensures proper running of the insulating layer drying with this device 1.

Das Gerät 1 kann auch verwendet werden, ohne dass es zwischendurch geöffnet werden muss, um beispielsweise das gesammelte Wasser aus dem Wassersammelbehälter 26 herauszuholen. Mit Hilfe der vorgenannten Steuerplatine 28 und der Pumpe 27 wird das gesammelte Wasser automatisch über einen Pumpenablaufstutzen 38 abgelassen. Auf diese Weise wird also das Wasser aus dem Gerät 1 in praktischer Weise entleert. Die Geräteelektronikeinheit 31 sorgt übrigens dafür, dass der Saugmotor 10 abgestellt wird, falls es die Pumpe 27 nicht schaffen sollte, das Wasser so schnell abzupumpen, wie es vom Saugmotor 10 angesaugt wird. Die Geräteelektronikeinheit 31 und die Steuerplatine 28 sorgen also dafür, dass der Saugmotor 10 erst dann wieder weiter läuft, wenn der Wassersammelbehälter 26 leergepumpt ist.The device 1 can also be used without it having to be opened in between, for example, to get the collected water out of the water collection container 26. With the aid of the aforementioned control board 28 and the pump 27, the collected water is automatically drained via a pump discharge nozzle 38. In this way, therefore, the water is emptied from the device 1 in a practical manner. Incidentally, the unit electronics unit 31 ensures that the suction motor 10 is turned off if the pump 27 fails to do so should pump out the water as fast as it is sucked by the suction motor 10. The device electronics unit 31 and the control board 28 thus ensure that the suction motor 10 only continues to run again when the water collection container 26 is pumped empty.

In Fig. 3 ist schließlich durch Pfeile auch noch einmal der Strömungsverlauf des Saugluft-Volumenstroms innerhalb des Gerätes schematisch dargestellt.In Fig. 3 Finally, the flow pattern of the suction air volume flow within the device is shown schematically by arrows again.

Es wird auch noch auf Fig. 4 hingewiesen, bei der es sich um eine Explosionszeichnung handelt, um wesentliche Einzelteile des Gerätes 1 aus einer anderen Perspektive und anschaulicher darzustellen. Wie in Fig. 4 zu sehen ist, befindet sich an der Oberseite des Oberteils 15 auch noch ein Griff 39, damit das deckelartige Oberteil 15 besser von Hand gehalten werden kann. Man sieht hier auch die gute Erreichbarkeit_der Elemente des Wasserabscheiders 14, wenn das Oberteil 15 des Geräts 1 abgenommen ist. Dies ist auch deswegen von Vorteil, weil diese Elemente nach Gebrauch immer gründlich zu reinigen sind.It will also be up Fig. 4 referred to, which is an exploded view to represent essential items of the device 1 from a different perspective and more vividly. As in Fig. 4 can be seen, there is also a handle 39 at the top of the upper part 15, so that the lid-like upper part 15 can be better held by hand. One can also see the good accessibility of the elements of the water separator 14 when the upper part 15 of the device 1 is removed. This is also advantageous because these elements are always thoroughly cleaned after use.

Damit das Gerät 1 besonders praktisch einsetzbar ist, sind am Unterteil 13 auch noch zwei Räder 40a, 40b vorhanden. Des Weiteren gehört zu dem Gerät 1 ein Bügel mit einem Griff 41, um das Gerät leichter fahren bzw. versetzen zu können. Abgesehen von den Rädern 40a, 40b, die an der Seite angeordnet sind, an der auch der Bügel 41 mit Griff vorhanden ist, befinden sich an der Unterseite des Gerätegehäuses 2 auch noch zwei Stützräder 42a und 42b, so dass das Gerät 1 immer gerade auf dem Boden steht.In order for the device 1 to be used in a particularly practical manner, two wheels 40a, 40b are also present on the lower part 13. Furthermore, the device 1 includes a bracket with a handle 41 in order to drive or displace the device easier. Apart from the wheels 40a, 40b, which are arranged on the side at which the bracket 41 is provided with a handle, there are also two support wheels 42a and 42b at the bottom of the device housing 2, so that the device 1 is always straight standing on the ground.

Schließlich ist in Fig. 5 zu erkennen, dass beispielsweise zwei Geräte 1 gut aufeinander gestellt bzw. gestapelt werden können. Dies bedarf an sich keiner näheren Erläuterung. An der Oberseite des Oberteils 15 befinden sich dazu auch Mulden 43a, 43b, in welche die Stützräder 42a, 42b passen, wodurch ein Verrutschen gestapelter Geräte 1 vermieden wird.Finally, in Fig. 5 to recognize that, for example, two devices 1 can be placed or stacked well. This requires no further explanation. To the top of the upper part 15 are also to wells 43a, 43b, in which the support wheels 42a, 42b fit, thereby slipping stacked devices 1 is avoided.

Claims (10)

  1. Device (1) for drying insulation layers of floors in a vacuum process, comprising a compressor (9) by means of which moist air is suctioned out of the insulation layer situated below the floor lining through at least one suction opening in the floor, said moist air is transported from the one or more suction opening(s) through in each case one drying air hose (11) to a water separator (14) coupled to the compressor (9), in which water separator the water contained in the moist air is separated off, and the suction air volume flow discharged from the water separator (14) passes to the compressor (9), wherein the compressor (9) comprises a suction motor (10) which can run at high rotational speeds and which compresses the suction air volume flow, wherein the device (1) comprises not only the compressor (9) but also a water separator (14), a fine filter (17) and means for sound deadening (19), and the compressor (9), the water separator (14), the fine filter (17) and the means for sound deadening (19) are connected to one another,
    characterized
    in that the compressor (9), the water separator (14), the fine filter (17) and the means for sound deadening (19) are accommodated in a single device housing (2) and are directly connected to one another, and the device housing (2) is composed of a removable upper part (15) and of a lower part (13),
    in that the compressor (9) is arranged in the upper part (15) and is surrounded by the means for sound deadening (19), in that the water separator (14) is arranged in the lower part (13) of the device housing (2), wherein the water that is separated off there is collected in a water collecting vessel (26) which, when a certain fill level is reached, is automatically evacuated by means of a connected pump (27),
    in that the fine filter (17) is arranged in the upper region of the lower part (13), wherein the suction motor (10) of the compressor (9) and the fine filter (17) are arranged relative to one another such that the suction-side part of the suction motor (10) projects into the fine filter (17),
    in that, on the lower part (13) of the device housing (2), there is provided at least one attachment connector (12) for the attachment of a drying air hose (11), such that the suction air volume flow that passes there into the device (1) passes firstly into the water separator (14) and flows from there through the fine filter (17) to the compressor (9), and
    in that, in the device housing (2), there is provided at least one opening through which the suction air volume flow can exit the device (1) again.
  2. Device according to Claim 1, characterized in that the opening (s) is or are formed as air passage opening(s) (24) in the upper part (15) of the device housing (2), such that the suction air volume flow can escape through said opening(s) into the surroundings.
  3. Device according to Claim 1, characterized in that the at least one opening comprises a connector in the upper part of the device housing, to which connector a hose is attachable, through which the suction air volume flow is conducted out into the surroundings.
  4. Device according to one of Claims 1 to 3, characterized in that the upper part (15) and the lower part (13) have means for releasing and connecting the same from one another and to one another.
  5. Device (1) for drying insulation layers of floors in a vacuum process, comprising a compressor (9) by means of which moist air is suctioned out of the insulation layer situated below the floor lining through at least one suction opening in the floor, said moist air is transported from the one or more suction opening(s) through in each case one drying air hose (11) to a water separator (14) coupled to the compressor (9), in which water separator the water contained in the moist air is separated off, and the suction air volume flow discharged from the water separator (14) passes to the compressor (9), wherein the compressor (9) comprises a suction motor (10) which can run at high rotational speeds and which compresses the suction air volume flow, wherein the device (1) comprises not only the compressor (9) but also a water separator (14), a fine filter (17) and means for sound deadening (19), and the compressor (9), the water separator (14), the fine filter (17) and the means for sound deadening (19) are connected to one another,
    characterized
    in that the compressor (9), the water separator (14), the fine filter (17) and the means for sound deadening (19) are accommodated in a single device housing (2) and are directly connected to one another, and the device housing (2) is formed in one piece, in that the compressor (9) is arranged in the upper part of the device housing (2) and is surrounded by the means for sound deadening (19), in that the water separator (14) is arranged in the lower part of the device housing (2), wherein the water that is separated off there is collected in a water collecting vessel (26) which, when a certain fill level is reached, is automatically evacuated by means of a connected pump (27), in that the fine filter (17) is arranged in the upper region of the lower part of the device housing (2), wherein the suction motor (10) of the compressor (9) and the fine filter (17) are arranged relative to one another such that the suction-side part of the suction motor (10) projects into the fine filter (17), in that, on the lower part of the device housing (2), there is provided at least one attachment connector (12) for the attachment of a drying air hose (11), such that the suction air volume flow that passes there into the device (1) passes firstly into the water separator (14) and flows from there through the fine filter (17) to the compressor (9), and in that, in the device housing (2), there is provided at least one opening through which the suction air volume flow can exit the device (1) again.
  6. Device according to Claim 5, characterized in that the opening (s) is or are formed as air passage opening(s) in the upper part of the device housing, such that the suction air volume flow can escape through said opening(s) into the surroundings.
  7. Device according to Claim 5, characterized in that the at least one opening comprises a connector in the upper part of the device housing, to which connector a hose is attachable, through which the suction air volume flow is conducted out into the surroundings.
  8. Device according to one of Claims 1 to 7, characterized in that, in addition to the fine filter (17), a HEPA filter (18) is arranged in a filter unit, wherein the suction-side part of the suction motor (10) also projects into the HEPA filter (18).
  9. Device according to one of Claims 1 to 8, characterized in that it is designed to be portable, for which purpose wheels (40a, 40b) are provided in the lower region of the device housing (2).
  10. Device according to one of the preceding claims, characterized in that a hoop or a bar with a handle (41) for moving the device (1) are provided on one side of the device housing (2).
EP16168962.5A 2015-05-11 2016-05-10 Device for drying insulating floor layers in a vacuum method Active EP3092928B1 (en)

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EP3092928A1 (en) 2016-11-16
DE102015005865A1 (en) 2016-11-17
DE102015005865B4 (en) 2018-05-03
PL3092928T3 (en) 2019-05-31

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