DE102012007273B4 - System and method for drying insulating layers of floors by means of a vacuum process - Google Patents

Abstract

System for drying insulating layers of floors in the vacuum method, wherein the moist air is sucked out of the insulating layer located below the floor by at least two suction holes in the floor with a standing in the room, this moist air from the suction through a drying air hose to one with the Compressor coupled water separator is promoted, in which the water contained in the humid air is separated, and the suction air volume flow discharged from the water separator passes through a connecting hose to the compressor, characterized in that a moisture sensor (28, 71) is provided which in the connection hose (24, 25; 67) between the water separator (5, 60) and the compressor (4, 62) is installed and with which the air humidity of the suction air volume flow in this connecting hose (24, 25, 68, 69) is measured , and that between the at the suction openings in the floor (3, 57 ) existing connecting piece (9, 10, 11) for the drying air hoses (6-8; 64-66) and the water separator (5, 60) a flow control unit (13, 58) is provided which comprises a housing (14) into which on one side of the floor (3, 57) as supply lines drying air hoses ( 6-8, 64-66) and on a different side of the housing (14) in each case a corresponding number of drying air hoses (21-23) is connected as discharges through which the moist air to the water separator (5, 60) each further is, and that in the flow control unit (13, 58) between the connected there and respectively corresponding drying air hoses (6-8, 21-23) for controlling the suction air volume flows, a control unit (27) is present, which by means of a closed electrical Control circuit allows opening or closing of actuators (49-51) located either on the supply lines or outlets of the drying air hoses (6-8, 21-23) and the flow s of the individual intake air volume flows enable or interrupt, wherein the control unit (27) coupled to the humidity sensor (28, 71) and designed so that the humidity sensor (28, 71) in predetermined measuring intervals successively individually the air humidity of the suction air volume flows in measures the drying air hoses (6-8, 21-23) between the suction openings and the flow control unit (13, 58) by ...

Description

The invention relates firstly to a system for drying of insulating layers of floors in the vacuum method, wherein the humid air is sucked out of the insulating layer located below the floor by at least two suction holes in the floor with a standing in the room, this humid air from the suction through each one Drying air hose is conveyed to a water separator coupled to the compressor, in which the water contained in the moist air is separated, and the suction air volume flow discharged from the water separator passes through a connecting hose to the compressor.

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 and drying processes or aggregates 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 it does not come to any further damage to the building fabric. For this purpose, the so-called insulating layer drying application. In this case, inter alia, insulating layer drying units are used to dry the insulating layer below the floor or screed floor, 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.

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 moist air, which can also be referred to as air-water mixture, is conveyed through a hose to the compressor, which discharges the moist air to the room, wherein the sucked by the aforementioned drying air hose air-water mixture initially to a with the Compressor coupled water separator hits, in which the liquid water contained in the humid 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.

As already stated above, it is necessary for the compressor that the air-water mixture previously extracted from the insulating layer in the upstream water separator is separated in such a way that the water contained in this aspirated process air is separated off. For this purpose, a corresponding water collection container is provided in the known water separators. Moreover, it is known to provide in such an arrangement for drying insulating layers in the vacuum process between the water and the compressor, if necessary, still filter to achieve filtering or deposition of fine particles, micro particles and suspended matter, which usually also in the aspirated Air-water mixture are included.

In practice, a water damage is characterized by an inhomogeneous moisture distribution in the insulating layer or the intermediate floor. In other words, there are areas of insulation that are very heavily moistened and that have become less damp due to water damage. Therefore, one often speaks of different "moisture zones" or "drying zones". Therefore, a multiple of the drying time is required if, as usual, working with an uncontrolled or uncontrolled suction flow. Due to the increased resistance due to the moisture in the insulating material is namely an uninfluenced, the means an uncontrolled or unregulated suction flow predominantly in the areas of lower humidity or the lower resistance act in the insulating layer. The higher backpressure in heavily moistened insulation zones leads to conventional Dämmschichttrocknung in the vacuum method with evenly distributed to all drying air hoses or drying zones distributed suction that already well-dried areas proportional to strong and still humid areas are under-flowed with dry air, which ultimately to unnecessarily long Dehydration times leads. The suction air flow therefore has the property for physical reasons that it has the strongest effect where it encounters the least resistance. The least resistance is provided by dry or, compared to other moisture zones, drier layers of insulating material. On the other hand, damp or dampened areas of dampening compared with other humidity zones have a high flow resistance, so that only little air flows through them, when the air is given the opportunity to flow through drier areas at the same time. The absorption of moisture from the insulation layer by the air flow therefore takes a relatively long time.

With regard to the problem described above was in the German patent application DE 44 27 245 A1 Described a method for drying of insulating layers through which a plurality of partial air streams are performed and where each separate measurements of parameters such as humidity and temperature in the humid exhaust air or the discharged Saugluft volume flows take place. It should be achieved in this way a defined and adjustable distribution of the drying air, so as to achieve a uniform, comprehensive and shortest possible drying time. In this case, a continuous measured value recording takes place over the entire drying time course, which also contributes to the use of self-monitoring sensors, which make a manual metrological detection dispensable. At this on the DE 44 27 245 A1 known drying method, the measurement of air humidity with multiple sensors, which are integrated into defined measuring sections. The measuring and balancing section with the sensors is located in each case in the drying air hoses, which are arranged for the purpose of extraction in the screed or at the edge joint of the screed (floor). Using the measured values thus obtained, the setting of the drying units such as the air compressor is carried out.

With the use of the commercially available moisture sensors known per se in the drying methods described above, however, considerable disadvantages or difficulties are associated in practice. This begins with the fact that hitherto in each drying air hose coming from the suction openings on the floor, a single humidity sensor for measuring the air humidity of the suction air volume flow has to be arranged in these drying air hoses. If, for example, five or even more drying air hoses are used in a larger drying measure, then five or more moisture sensors must accordingly be installed on these hoses. This alone is unfavorable in terms of cost, since these humidity sensors are very expensive. They usually cost between 70.00 and 350.00 € today, although of course the more expensive models are also the better humidity sensors. Another disadvantage is the fact that where these humidity sensors are installed in the known systems or drying processes, ie in the same on the floor or the edge joint of drying air hoses, the suction air volume flows at least in the first part of the drying time still a very high humidity, so that the humidity sensors, which are very sensitive when used in such humid air / water mixtures, then often incorrectly measure or break. The humidity sensors must then be replaced, which again causes new costs.

Therefore, the present invention has the object to provide a system and a method for drying of insulating layers of floors in the vacuum process, which avoids the previously associated with the use of moisture sensors and disadvantages described above and at the same time reliably and in significantly less time a complete Dehydration of all moistened areas or zones of the insulating layer accomplished.

The object is achieved in a system of the generic type in that a humidity sensor is provided which is installed in the connecting tube between the water and the compressor and with which the air humidity of the suction air volume flow is measured in this connecting hose, and that between the the suction openings in the floor existing connection piece for the drying air hoses and the water separator is provided a flow control unit comprising a housing into which come on one side coming from the floor as supply lines drying air hoses and on another side of the housing in each case a corresponding number of drying air hoses is connected as discharges, through which the moist air is transported to the water separator in each case, and that in the flow control unit between the connected there and respectively corresponding drying air hoses for Regelu ng of the suction air Volume flows a control unit is present, which allows by means of a closed electric control circuit opening or closing of actuators, which are located either on the leads or outlets of the drying air hoses and can release or interrupt the flow of the individual suction air volume flows, the control unit with the humidity sensor coupled and is designed so that the moisture sensor at predetermined measuring intervals successively individually measures the humidity of Saugluftvolume streams in the drying air hoses between the suction and the flow control unit by the control unit the flow of only a single suction air volume flow by opening the associated adjusting device for releases a predetermined time while the other (s) actuator (s) is closed, that at the end of the measurement interval, the respective measured humidity values are usually close it is compared with each other and that the control unit makes an adjustment of the adjusting devices for a preprogrammed drying interval on the basis of this measured value comparison.

This system according to the invention initially has the great advantage that a total of only one moisture sensor is required for a drying measure, even if a plurality of drying air hoses are connected and used for sucking off the moist air from the insulating layer. It must therefore no longer be installed on all the drying air hoses used individual humidity sensors, but it is sufficient a single humidity sensor for the entire system, which is installed in the connecting tube between the water and the compressor. By installing the humidity sensor in the connecting hose, ie after the individual filter stages - such as water separator, fine filter, etc. - the measurement of air humidity has only a minimum error rate, since water, which otherwise complicates the detection of measurements or due to the sensitivity of commercially available sensor technology even often impossible, in this connection hose to the compressor can no longer be in liquid form. It is clear that the measuring head of the humidity sensor is at a sufficient depth in the connecting hose, ie in the air flow flowing through it, in order to obtain correct measured values.

Furthermore, the system according to the invention by the use of special flow control unit allows targeted activation and suction of all moisture or drying zones of the insulating layer, resulting in a uniform and much faster (depending on the case of damage about 30 to 70% faster than conventional systems or Process) drying out of all moistened areas of the insulating layer leads. The volume flow or the flow rate of the individual suction air volume flows in the drying air hoses is modified by adjusting devices that are integrated in the flow control unit. Such adjusting devices, which are formed in a preferred embodiment of the invention as control valves, are known per se and can change their passage cross-section for the suction air volume flows, they receive for this purpose from the control unit of the flow control unit corresponding electrical signals, by means of a closed electrical control circuit. The measured in the connection hose to the compressor humidity readings are transmitted as an electrical signal to the flow control unit. It should be noted that it is actually irrelevant to the function of the flow control unit whether the adjusting devices are located on the supply lines or on the outlets of the drying air hoses. For a better understanding is also to be noted that each other corresponding drying air hoses, so reaching into the flow control unit drying air hose (supply) and the associated, the flow control unit leaving drying air hose (discharge) here sometimes as a drying air hose strand or channel referred to as.

The control unit contained in the flow control unit and the associated closed electrical control loop represent an automatically operating control of the entire system according to the invention. By a preprogrammed activation sequence of the adjusting devices, a humidity air value measured by the humidity sensor can always be exactly one drying air hose and thus also the associated moisture in the insulating layer - Are assigned or drying zone to which this drying air hose is "connected". This is because the control unit is coupled to the humidity sensor and designed so that the humidity sensor in the connection hose to the compressor measures the humidity of the incoming there suction air volume flow, which due to the control unit made with the control loop due to the opening of an adjusting device from a drying air hose (supply) is passed. The system thus "recognizes" in which intake air volume flow or in which drying air hose branch / duct the air humidity is measured. In a predetermined measuring interval of, for example, 90 seconds, the system or the flow control unit contained therein opens a single adjusting device, so that only the incoming there from a drying air hose from the insulating layer suction air volume flow to the water and then to the compressor is transmitted then exactly in this Measuring interval the humidity is measured with the humidity sensor. Important and essential to the invention is that during this measurement interval, the other (s) actuator (s) is closed or are. After completion of this measurement cycle, the system repeats the measurement of the air humidity of the suction air volume flow for each other drying air hose strand (again for a duration of 90 seconds, for example). At the end, the flow control unit compares the measured humidity values in the control unit and can thus determine which humidity value is the highest and therefore which humidity zone or drying zone of the insulation layer is the wettest. Due to this, the control unit - in a second phase - automatically adjusts the setting devices for a preprogrammed drying interval.

As a particularly advantageous solution for measuring the humidity in a system according to the invention, it is proposed to provide the compressor with an opening for attachment of a trained as a hollow body connection / distributor part, said connection / distribution part having on one side a mouthpiece, which can be inserted into the opening of the compressor is formed, and on the opposite side of the mouthpiece a connection plate having at least one receiving opening or an adapter for one or more coming from the water (s) connection hose or hoses and that in this connection plate and an opening or a nozzle for insertion or insertion of the humidity sensor is present, wherein the connection plate, the mouthpiece and the side wall or side walls of the connection distributor part form a closed mixing chamber in which the moist air entering through the connection hose or the connection tubes is mixed or swirled.

For example, the connection / distribution part may preferably be made of metal, which makes it particularly robust and enables secure reception of the connection tubes and of the moisture sensor. Especially when using more than one connecting hose between the water separator and the compressor (several connecting hoses may be necessary or expedient for larger drying measures and thus larger volume flows) results from the use of the connection / distributor part the advantage that the incoming Saugluft- Volume flows in the mixing chamber are well mixed or swirled, so that the air flow is present there in turbulent form altogether. This avoids a falsification of the measurement results, because the formation of a laminar flow is prevented, which may possibly lead to differences in moisture in the individual layers of the laminar flow. This is due to the fact that a moisture sensor installed directly in a laminar air flow (as it usually occurs in a drying air hose) probably detects only the humidity of a layer of the same and not the entire air flow, which can lead to a faulty measurement.

It is particularly advantageous if the connection / distributor part has a nozzle-like design in that the side wall or side walls taper or taper from the connection plate to the mouthpiece. Such a geometry of the connection / distributor part has a positive effect on the flow conditions in the mixing chamber and consequently also on the measurement of the humidity with the humidity sensor, which in itself requires no further explanation, but will be explained in more detail below with reference to the exemplary embodiment. The same applies to an advantageous development of the connection / distributor part, whose side wall is designed in the form of a cone or circular cone or a circular truncated cone. If the mouthpiece of the connection / distribution part has a circular shape, it can be particularly easily inserted or fastened in a correspondingly circular opening of the compressor. Such a circular shape is also favorable production technology. However, this does not exclude that another shape is used for the mouthpiece or the corresponding opening in the compressor.

Furthermore, an advantageous further embodiment of the system is proposed according to the invention, in which the opening or the nozzle for insertion or insertion of the moisture sensor in the connection / distribution part is designed as Einschraubadapter, at its outer periphery an external thread for screwing into a receiving opening the connection plate of the connection / distribution part and the inside has a through hole for insertion of the humidity sensor.

As explained above, such a humidity sensor is a very sensitive and expensive instrument. For this reason, the invention provides with this embodiment, a particularly safe introduction and attachment of the humidity sensor in the connection / distribution part by a so-called Einschraubadapter is provided. Since the commercially available humidity sensors usually have a rod or cylindrical shape, the Einschraubadapter is to be prepared so that it has a correspondingly shaped opening or through hole into which so the humidity sensor can be inserted and thus securely fixed in the required depth. Preferably, the Einschraubadapter has in its opening still a rubber ring (for example, O-ring), just like that It is measured that the humidity sensor can be easily inserted and pulled out without being able to slide back and forth by itself. Insertion takes place in a depth corresponding to the size ratios or the geometry of the connection / distributor part, so that the measuring sensor located at one end of the humidity sensor protrudes into the mixing chamber at a sufficient depth in order to allow correct measurements. In this case, the insertion depth or position of the humidity sensor can also be defined by the geometry or proportions of the connection plate and the side wall or side walls of the connection / distributor, if the side wall / side walls is / are arranged obliquely relative to the connection plate. Furthermore, the screw-in adapter with its external thread can easily be screwed into the respective receiving opening and unscrewed again.

The size of the connection / distributor part is basically not fixed and depends on the conditions or requirements of the respective drying measure. In the case of particularly large and extensive drying measures, it may be necessary to use a relatively large number of drying air hoses for sucking the moist air out of the insulating layer and consequently for the system to necessitate more than one connection hose from the water separator to the compressor. In order to make it possible to connect these connecting hoses to the connecting / distributing part, provision must accordingly be made for a sufficient number of receiving openings or adapters thereon, which, however, do not necessarily have to be used in every drying measure and therefore may also be closed by closing caps. It has been found in practice that often the use of three connecting hoses between the water and the compressor is useful, so that an advantageous embodiment of the system according to the invention provides that on the connection plate of the connection / distributor part next to the opening or the nozzle for the humidity sensor, three receiving openings or adapters for three connecting hoses coming from the water separator are arranged.

In the further subclaims 9 to 12 advantageous embodiments of the flow control unit are claimed. Thus, it is first proposed according to the invention that the housing of the flow control unit has a box-shaped design with a square or rectangular outline and that on one side of the housing openings for introducing the coming from the floor as supply lines drying air hoses and on the opposite side of the housing openings for insertion are provided by the water separator as discharges drying air hoses. Such a box-shaped design or construction allows a particularly favorable distribution of the individual components on or in the flow control unit. The housing thus provides enough space to provide above all the openings for the drying air hoses and also the adjusting devices (the number of the number of drying air hoses to be connected), the control unit, relays, a power supply, a power connector, a start button and any other components to record. The box-shaped construction with a square or rectangular floor plan has the further advantage that the flow control unit allows a good stability. By this is meant that such a flow control unit, if it stands in the context of the system, for example during the drying measure, for example, in the middle of the room on the floor, not so easy to slip or even tilt, taking into account that shocks or Vibrations due to the electronic components contained in the flow control unit could cause defects. Apart from this, this box-shaped design has the advantage that the flow control unit can also be placed well on other system components such as Wasserabscheider- or compressor housing boxes or such components can be easily placed on the flow control unit. In this context, it should be mentioned that such system components are often stacked in the form of a device tower, so as to save space in the room. In this case, the individual devices or device components of a manufacturer are usually matched, including as regards the sizes and dimensions of the relevant device housing. The housing usually made of a hard plastic can then easily and safely put on each other without this leading to impairment of the function of the individual devices.

In another preferred embodiment of the system according to the invention it is provided that the housing of the flow control unit has a box-shaped design with a cover part and a bottom part, wherein the lid part is removable and the bottom part, the openings for the drying air hoses, the adjusting devices, the control unit, Relay, a power supply, a power connector and a start button contains. Such a two-part design of the housing offers, apart from manufacturing aspects in particular the advantage that the components or components contained therein are easily accessible, so as to replace components or repair if necessary.

Furthermore, it is proposed, in an advantageous manner on the outside of the housing to locate the flow control unit mountings for mounting the humidity sensor and a measuring cable belonging to it, if this humidity sensor is not needed. The aforementioned brackets are practically especially in the event that the system is currently not working or the flow control unit must be carried or transported, so the humidity sensor for a certain time is not needed.

Finally, it is proposed that on the outside of the housing of the flow control unit, additional means for receiving or attaching the above-described Einschraubadapters for the humidity sensor are present when this humidity sensor is not needed, for example. This means that the Einschraubadapter for the humidity sensor, especially for transport purposes is securely attached to the flow control unit, including this corresponding receiving or attachment means, and so the Einschraubadapter is not lost and is immediately available for a new drying measure. Instead, the means for receiving can also serve for a second reserve screw-in, so in case of need to have a second screw-in adapter in reserve. Thus, the flow control unit, except for the control unit and the other actual functional components, contains all the accessories such as humidity sensor (with connected measuring cable) and screw-in adapter for the humidity sensor in the manner of a set for practical handling.

It should also be noted that it is readily possible to combine such a flow control unit, which is to be regarded as a separate component, in principle with devices or device components from other manufacturers. This flow control unit is thus fully compatible.

In addition, the invention provides various process variants for the drying of insulating layers of floors in the vacuum process, in which the previously described systems or system components are used. The first variant of the method relates to a method in which the moist air is sucked out of the insulating layer located below the floor by at least two suction openings in the floor with a standing in the space, this moist air from the suction through a drying air hose to one coupled to the compressor Water separator is conveyed, in which the water contained in the moist air is separated, and the suction air volume flow discharged from the water separator passes through at least one connecting hose to the compressor. Based on such a system, a method is proposed according to the invention, in which a moisture sensor is provided, which is installed in the connecting tube between the water and the compressor and with the measured in this connection hose, the humidity of the suction air flow rates, and that between the on the suction openings in the floor existing connection piece for the drying air hoses and the water separator is provided a flow control unit comprising a housing into which come on one side coming from the floor as supply lines drying air hoses and on another side of the housing in each case a corresponding number is connected by drying air hoses as discharges through which the moist air is transported to the water separator in each case, and that in the flow control unit between the connected there and each corresponding Trocknungsluftschläuc hen a regulating unit is provided for controlling the suction air volume flows, which by means of a closed electrical control circuit allows opening or closing of adjusting devices, which are located either on the supply lines or outlets of the drying air hoses and can release or interrupt the flow of the individual suction air volume flows, wherein the coupled to the humidity sensor control unit operates so that with the humidity sensor in a first step in a predetermined measurement interval successively individually the air humidity of the suction air volume flows in the drying air hoses between the suction and the flow control unit is measured by the control unit flow only a single suction air volume flow by opening the associated adjusting device releases for a predetermined time, while the other (s) adjusting device (s) is closed or that after completion of Messin In a second process step, the respective measured humidity values in the control unit are compared with one another and the control unit makes an adjustment of the control devices for a preprogrammed drying interval on the basis of this measured value comparison and in this third process step the drying of the insulating layer takes place by suction of the moist air from the insulating layer.

According to the aforementioned method variant, the humidity of the incoming suction air volume flows in the drying air hoses (strands / channels) is measured in a first step, optionally by pressing a start button on the flow control unit with the humidity sensor. However, only one humidity sensor is needed, that is no longer moisture sensors on each individual drying air hose. Once the flow control unit in a predetermined If the measuring interval has determined the air humidity or the air humidity values of the suction air volume flows flowing through the drying air hoses, these measured values are compared with one another in a second method step or a second phase of the method, for which purpose the control unit serves. On the basis of this measured value comparison, the control unit then fixes the adjusting devices for a specific drying interval, so that the drying of the insulating layer is carried out in this drying interval by suction of the moist air from this insulating layer. How long such a drying interval lasts depends on the particular conditions and can be set by the operator at the flow control unit.

In a further, particularly advantageous variant of the method described above, the control unit of the flow control unit on the basis of the measured value comparison in the second step, the adjustment of the adjusting devices for the drying interval so that in this drying interval, the moist air is sucked only from that drying air hose through which which flows in comparison to the other drying air hoses humid air. In this case, this procedure means that with the control unit the most heavily moistened zone of the insulating layer is "selected" so that then opens exactly that actuator the flow control unit that belongs to the drying air hose (strand / channel), through which - due to the previous measurement - humidest suction air volume flow flows in the direction of the flow control unit and the water separator. A drying interval may then take, for example, 10 minutes, which also depends on how high the measured humidity value is. For particularly severe water damage, where the most humidified moisture zone, for example, has a relative humidity of about 90%, while other Dämmschichtbereiche have remained relatively dry, it may be useful to increase the drying interval, ie, for example, 30 minutes, 60 minutes or even longer. It goes without saying that these settings depend on the individual case. For a drying interval of, for example, 10 minutes, the total suction power of the compressor is thus concentrated on this one drying air hose strand / channel and the associated drying zone of the insulating layer. After completion of this drying interval, the system repeats the procedure by first measuring with the humidity sensor, the humidity in the individual drying air hoses and then in a further drying interval, a single drying air hose is applied, possibly the same same drying air hose (if there continues to arrive the humid air ) or now another drying air hose (strand / channel).

Moreover, the invention proposes according to another variant of the method to repeat the previously described three process steps until the insulation layer is dried as a whole, as desired by the parties (for example, the architect or the builder). After completion of the drying interval or third process step, the three process steps are thus carried out again beginning with the first process step, until the measured humidity values in all drying air hoses have dropped to an adjustable air humidity limit, so that then the control unit of the flow control unit, the adjusting devices for all drying air hoses opens and so the drying is completed. Thus, after the three process steps described above have been performed a first time, the first process step is started again, ie the humidity in the individual drying air hoses is measured with the humidity sensor. Should it then turn out, for example, that the moisture is still highest in the already most heavily damped insulating layer area, the relevant drying air hose (ie the respective feed line or discharge line) is then released again for extraction in a predetermined drying interval by opening the associated adjusting device , This can be repeated in further process cycles. Instead, it may also be that it turns out in another process cycle that now another damping layer area is moistened most, so that then this concerned Dämmschichtbereich the suction is subjected by the relevant drying air hose. Overall, it is proposed according to the invention to carry out the process until the humidity values measured in all the drying air hoses have dropped to an operator-adjustable, ie previously defined, air humidity limit. This is to be understood that in the light of the water damage found and analyzed beforehand it is decided how much the humidity in the dampened insulation layer must be reduced overall in order to consider the drying measure as complete. A general numerical determination of the air humidity limit is therefore not possible here and rather on an individual basis. As a rule, however, a (relative) humidity of more than 60% in the insulating layer would hardly make sense. In new buildings, it may be that an air humidity limit of about 60% is still acceptable, because the insulation layer will continue to dry itself in the further course of the new construction. In other cases, for example, in water damage rehabilitation in apartments, however, a far lower air humidity limit may be required, which may, for example, be 20% relative humidity. In this way, it is possible to prepare a system to be used for carrying out the method and the flow control unit integrated therein in such a way that the drying process is carried out only until a predefined humidity value has fallen in all the drying air hoses. Once this is done, the drying air tubing actuators are all opened permanently, completing the drying.

It is in principle possible to design the flow control unit for a power of, for example, about 350 m ³ / h (cubic meters per hour), whereby it is possible to work with pressures of, for example, 250 mbar (millibar). Incidentally, the flow control unit is suitable for use with almost all commercially available compressors or other components for water damage restoration in the insulation-layer drying method today. In this way, with the method or system according to the invention, permanent and reciprocal (that is to say the parameters of the system influence one another), the suction power is directed to the respectively wettest zone of the insulating layer. This active sensor-based system thus leads to a uniform and much faster drying out of all moistened areas of the insulating layer.

Finally, a process variant according to the invention is proposed in which exactly three drying air hoses are used to extract the moist air from the insulating layer of the floor. For example, this number of three drying air hoses is well suited for medium sized living spaces whose insulation layer is to be dehumidified as a result of water damage. It is therefore proposed that the moist air from the insulation layer is sucked through three suction openings in the floor and passes through three associated drying air hoses as feed lines on one side into the housing of the flow control unit and on another side of the housing three drying air hoses are connected as discharges through which the moist air is transported to the water separator, and wherein the control unit coupled to the humidity sensor works so that with the humidity sensor in a first step in a predetermined measurement interval successively individually, the humidity of the three suction air volume flows between the suction and the flow Control unit is measured by the control unit releases the flow of only a single suction air volume flow by opening the associated actuator for a predetermined time, while the other two actuators are closed because ss after the end of the measurement interval in a second process step, the three measured humidity values are compared in the control unit and that the control unit performs an adjustment of the adjusting devices for a preprogrammed drying interval and in this third step, the drying of the insulating layer by suction of the moist air from this comparison the insulating layer takes place. As explained in more detail above, the aforementioned number of three drying air hoses is often well suited for "average" water damage, for example in living spaces. In the case of the use of three drying air hoses so the humidity is always measured in a drying air hose strand / channel with the humidity sensor, while the adjusting devices of the second and third drying air hose are blocked, thus preventing further flow of the respective intake air volume flows. Accordingly, in the third process step, that is, in the drying interval with the corresponding adjusting device, always only one drying air hose line / channel is released for suction, while in this time the second and third adjusting device remains closed. In this process variant with three drying air hoses, the control unit of the flow control unit with the control circuit is designed or programmed so that the humidity sensor measures the humidity of the coming of a drying air hose (supply) suction air flow rate, while the other two suction air volume flows due to the closing the adjusting devices can not even get to the compressor. The use of three drying air hoses, for example, also be advantageous because there are often damp dampened insulating layers at the beginning of the drying measure three main moisture zones, namely a heavily moistened zone (ie where the water damage has happened in the room, for example under a Bath) or where the water has "collected", for example due to a (possibly small) gradient, a moderately moistened zone and a slightly humidified zone.

Finally, it should be clarified that the system and method according to the invention are suitable not only for drying insulating layers of floors or screeds in rooms (for example living rooms, offices, halls, etc.) but also for insulating drying of flat roofs or the like.

The invention will now be explained in more detail below with reference to the schematic drawings. Show it

1 a perspective view obliquely from above into a living room of a building with a floor and an underlying insulating layer and with an embodiment of the system according to the invention for drying such an insulating layer in the vacuum method with a compressor, a water separator and a flow control unit,

2 an enlarged view of part of the in 1 shown components of the system, namely the water separator, the compressor thereon and the flow control unit, together with connected hoses,

3 a representation of the functional principle of in 1 shown embodiment of the system for drying the insulating layer and the sequence of the process to be carried out with it,

4 a perspective view obliquely from above on in the 1 to 3 shown flow control unit and connected thereto drying air hoses,

5 in the 4 shown flow control unit, seen from the other side and without connected drying air hoses and wound therewith connection / measuring cable and humidity sensor,

6 a view obliquely from above into the open bottom part of the in the 1 to 5 shown flow control unit,

7 a schematic diagram (circuit diagram) of the control circuit of the control unit in the 1 to 6 illustrated flow control unit,

8th a in principle the representation according to the 4 corresponding representation of the flow control unit, wherein the cover part is removed here to illustrate the inner life of the bottom part or placed next to it,

9 a sectional view of the in the 1 . 2 and 3 represented, attached to the compressor connection / distributor part,

10 a perspective view obliquely from the front to the in 9 shown connection / distribution part,

11 a view on a loosely and to the in 1 to 3 shown system belonging moisture sensor, with a connected connecting / measuring cable and a nozzle-like Einschraubadapter for attaching the humidity sensor to the in the 9 and 10 represented connection / distribution part, and

12 another embodiment of the system according to the invention, in which the system components or devices are stacked on top of each other.

Based on 1 to 11 will be detailed below an embodiment of the system according to the invention 1 and the insulating layer drying method that can be carried out with it. So is in 1 first of all this system 1 for drying an insulating layer 2 presented in its entirety. The insulating layer 2 is located in a room (for example a living room) below a floor 3 and has become damp due to a water damage, so now a water damage restoration is required.

The system 1 first includes one from a compressor 4 and a water separator 5 formed unit, taking with the compressor 4 the moist air from the insulation layer 2 is sucked off. Serve with in the 1 illustrated system 1 three drying air hoses 6 . 7 and 8th , The one end of each of these three drying air hoses 6 . 7 and 8th is with appropriate connecting pieces 9 . 10 and 11 provided, which in this prepared suction in the region of an edge joint 12 of the floor 3 (for example a screed) are inserted. In this way, the compressor sucks 4 through the connecting pieces 9 . 10 and 11 and the drying air hoses connected to it 6 . 7 and 8th in the insulating layer 2 existing moist air, which can also be referred to as air-water mixture or process air. The suction direction is in 1 through the three arrows in the area of the connecting piece 9 . 10 and 11 shown. At the other end of the drying air hoses 6 . 7 and 8th These are initially connected to a flow control unit 13 connected, which in this embodiment on the floor 3 stands and will be described later. For connecting the drying air hoses 6 . 7 and 8th at the flow control unit 13 has them on one side of their case 14 three corresponding openings 15 . 16 and 17 for introducing or connecting these three drying air hoses 6 . 7 and 8th on. These drying air hoses 6 . 7 and 8th are also referred to herein as "supply lines" because they suck the extracted moist air to the flow control unit 13 conduct. On the opposite side of the case 14 the flow control unit 12 are three more openings 18 . 19 and 20 (see also 4 . 5 and 6 ), namely for the three drying air hoses to be connected there 21 . 22 and 23 that the of the insulating layer 2 through the drying air hoses 6 . 7 and 8th and the flow control unit 13 passing moist air or suction air Volume flows each to the water separator 5 transport. These three drying air hoses 21 . 22 and 23 are therefore also called "derivatives" here. The water separator 5 is the compressor 4 upstream or coupled with this. In the case of the system 1 ( 1 ) For this purpose, the compressor-water separator unit is designed so that the compressor 4 on the lid of the water separator 5 stands.

The water separator is used in the vacuum process 5 in addition, through the drying air hoses 6 . 7 and 8th from the insulation layer 2 to separate or aspirated air-water mixture, so that the liquid water contained in the moist air is separated and in a water separator 5 for intended water collection tank is discharged. The functional operation of such a water separator 5 is already known and therefore need not be described here. After the water separation in the water separator 5 is the remaining process air in the system 1 via two connecting hoses 24 and 25 to the compressor 4 transported, from which this air is then ultimately discharged to the outside in the room. Once the water collection tank in the water separator 5 is included and therefore in 1 is not shown, has reached a certain level or the highest level, this water is contained in a separate and in the 1 and 2 not shown hose line, for example, towards a in 1 also not shown Wasserabflussstelle in the room or in the vicinity of this room, from where this water then enters, for example, in a spillway of the building.

During the extraction of the air-water mixture from the insulating layer 2 works in the room standing drying device, for example, the in 1 shown Kondenstrocknungsgerät 26 which is adjacent to the compressor-water separator unit on the floor 3 stands. It is a commercially available condensate drying device 26 which is permanently operated during a drying operation, which usually takes several hours or even days. The condensation dryer 26 ensures that the air in the room, which has a certain moisture content, is dried according to the principle of condensation, otherwise humid room air is always released through the edge joint (s) 12 or other openings of the floor 3 into the insulation layer 2 would arrive. However, it is not absolutely necessary for the system or drying method according to the invention and the embodiment described here that such a drying device as the condensate drying device shown here 26 is used. In general, however, with such a drying device, the drying measure can be completed faster than without such a drying device. Overall, the drying process with the present system 1 operated until the insulation layer 2 has dried sufficiently. This will be further explained below.

It is very common in practice for water damage that it is in the insulating layer 2 different wet areas are. So is in 1 a heavily moistened area A (in 1 left), a moderately moistened area B (in 1 in the middle) and a slightly humidified area C (in 1 right) to recognize what is illustrated in this figure by different hatching. One can also speak of three different moisture zones or drying zones A, B and C. If now would work in such a water damage case with the previously known vacuum drying processes or systems, that is, in the in 1 illustrated inhomogeneous moisture distribution in the insulating layer with the three humidity zones A, B and C all three drying air hoses 6 . 7 and 8th evenly with that of the compressor 4 This would have the disadvantage that a large part of this suction would go to the heavily moistened insulation layer area A. In other words, the moderately and slightly moistened Dämmschichtbereiche B and C would be in relation to the heavily moistened Dämmschichtbereich A too little acted upon by the suction, that is to be traversed by the extracted dry air, which would ultimately lead to unnecessarily long drying times. This has already been explained in more detail above. To avoid this disadvantage, the system looks 1 the flow control unit 13 before, in which first a control unit 27 is included, their training and function or effect in the other 4 to 7 is explained in more detail.

As in the 1 and 2 can be seen, is the flow control unit 13 between the water separator 5 and the drying zones A, B and C. The in the flow control unit 13 integrated control unit 27 is in turn with a humidity sensor 28 coupled or by a connecting / measuring cable 29 connected, can be transmitted by the measured humidity values as electrical signals. The humidity sensor 28 is intended to measure in certain time intervals, the humidity of the three suction air flow rates, which through the corresponding drying air hoses 6 and 21 . 7 and 22 respectively. 8th and 23 coming from the insulation layer through the flow control unit 13 to the water separator 5 be sucked. The humidity sensor 28 is in the system 1 at the compressor 4 arranged, where the two of the water separator 5 coming connecting hoses 24 and 25 at the compressor 4 are connected. For connecting these connecting hoses 24 . 25 on the compressor 4 is in turn a so-called connection / distribution part 30 provided, which in detail below with reference to 9 and 10 is described.

The connection / distribution part 30 is designed as a hollow body and has a mouthpiece on one side 31 on, which has a circular shape. This circular mouthpiece 31 is therefore in a not shown in the drawings, also circular opening in the compressor 4 plugged in or attached. Such a circular opening can be in a usually produced from plastic housing of a compressor 4 easy to make. On the mouthpiece 31 opposite side has the connection / distribution part 30 a circular disc-shaped connection plate 32 with a total of four receiving openings 33 . 34 . 35 and 36 ( 10 ). The two receiving openings serve this purpose 33 and 34 for connecting the two connecting hoses 24 and 25 , The third receiving opening 35 gets at the system 1 currently not used and therefore by a cap 37 locked. The further (fourth) receiving opening 36 serves to introduce or record the humidity sensor 28 , As in 9 can be seen, has in the connection / distribution part 30 used humidity sensor 28 a rod or cylinder shape, wherein at one end to the flow control unit 13 leading connecting / measuring cables 29 is connected and at the other end of the measuring head 38 is arranged. 9 illustrates that the measuring head 38 in a closed mixing room 39 protrudes. This mixing room 39 is formed by the mouthpiece 31 , the connection plate 32 and the here formed in the form of a circular cone or circular truncated cone sidewall 40 of the connection / distributor part 30 , The cross section drawing in 9 illustrates this shape of the sidewall 40 , in which therefore the hollow-body connection / distribution part 30 from the connection plate 32 starting to the mouthpiece 31 rejuvenated. This shape or geometry allows optimal mixing of the through the connecting hoses 24 and 25 in the mixing room 39 reaching suction air volume flows. These suction air volume flows are in the mixing room 39 mixed and swirled so that the air flow in the mixing room 39 is present in turbulent form. Unlike a laminar flow, this turbulent shape of the airflow allows in the mixing room 39 a correct measurement of the humidity of the air in this mixing room 39 with the help of the humidity sensor 28 ,

The humidity sensor 28 could in principle also at another point of the connection plate 32 , for example centrally in the middle of the connection plate 32 be arranged. In the present embodiment, the humidity sensor is located 28 or the corresponding receiving opening 36 but deliberately not in the middle, because of the "sloping" sidewall 40 is achieved by the humidity sensor 28 when he is as far as possible in the receiving opening 36 is plugged in, with its measuring head 38 against the side wall 40 abuts. This is exactly the optimal insertion depth, so that the measuring head 38 flows around the process air and thus provides correct readings.

So that the humidity sensor 28 in the connection / distribution part 30 can be easily and safely attached by an operator is in this embodiment for a screw-in adapter 41 provided, the easy and fast in the receiving opening 36 the connection plate 32 can be screwed. This screw-in adapter 41 is approximately an annular member with an opening (through hole), so that the humidity sensor 28 inserted in it and thus can be fixed in the required depth. The external thread of the screw-in adapter 41 corresponds to the internal thread of the receiving opening, not shown 36 , Due to the geometry or proportions of the connection plate 32 and the side wall 40 as well as the positioning of the humidity sensor 28 what happens in 9 can be seen particularly clearly, advantageously a defined insertion depth. This is because the humidity sensor 28 or the corresponding receiving opening 36 with his measuring head 38 against the inner surface of the side wall 40 abuts when the humidity sensor 28 completely plugged through. This is exactly the defined insertion depth that is optimal for correct measurements.

As already explained, the humidity sensor is 28 through the connection / measuring cable 29 with the flow control unit 13 connected. This is for the use of the system 1 or the execution of the drying process with this system 1 very important. Therefore, now will be closer to the design and operation of the flow control unit 13 explained. It is a box-shaped flow control unit 13 with a square floor plan. The flow control unit 13 can therefore easily on the floor 3 be put without tilting. The housing 14 the flow control unit 13 is made in two parts and thus consists of a bottom part 42 and a lid part 43 Both are made of a shock-resistant hard plastic. Here is the lid part 43 from the bottom part 42 removable, what in 8th is illustrated. When closed, the lid part 43 with the bottom part 42 through mounting brackets 44 firmly connected.

In the 4 and 5 you can see that the screw-in adapter 41 if not is used, on the outside of the lid part 43 of the housing 14 in a corresponding there existing recording 45 can be attached. For a drying use this Einschraubadapter 41 quickly out of the picture 45 on the housing 14 and then attached to the connection / distribution part. The recording 45 Can also be used to attach a reserve held second screw-in adapter. Due to the circular design of the screw-in adapter 41 must be the recording 45 be shaped or formed accordingly, that is one for the external thread of the screw-in adapter 41 matching circular opening.

In principle, the same purpose is served by the holder 46 for the humidity sensor 28 on the outside of the bottom part 42 of the housing 14 if this humidity sensor 28 temporarily not needed. That at the humidity sensor 28 connected connection / measuring cables 29 can then be in an additional holder 47 be wound up. This bracket 47 is also on the bottom part 42 available and consists of two cable winder 47a and 47b , the side next to the openings 15 and 17 the drying air hoses 6 and 8th are arranged. Such a connection / measuring cable 29 with the humidity sensor 28 By the way, is also individually in 11 to see. The connection / measuring cable 29 is there shown in a wound form, in the middle of the picture also once again individually the nozzle-shaped screw-in 41 can be seen, which is preferably made of metal.

The flow control unit 13 is mobile (transportable) and is operated electrically. They are powered by a power cable 48 (please refer 4 ). The bottom part 42 the flow control unit 13 contains various components or components, which in 6 easy to recognize and use of the system 1 are essential. This first includes the control unit 27 , It causes by means of a closed electrical control circuit (see 7 ) opening or closing of adjusting devices, in the present embodiment as control valves 49 . 50 and 51 are formed. The through the drying air hoses 6 . 7 and 8th from the insulation layer 2 sucked moist suction air volume flows arrive within the flow control unit 13 first to the control valves 49 - 51 , On the opposite side of the case 14 then leave these suction air volume flows through the drying air hoses 21 . 22 and 23 again the flow control unit 13 towards the water separator 5 , The maintenance-free control valves 49 - 51 are in the bottom part 42 so juxtaposed that through the openings 18 . 19 and 20 introduced drying air hoses 21 . 22 and 23 can be connected to this. In addition to the control unit 27 includes the flow control unit 13 especially three more relays 52 , a power supply 53 , a network connection 54 and a start button 55 , The one with the flow control unit 13 realized control loop is in 7 shown, where there is also the control unit 27 it can be seen, which on the one hand with the humidity sensor 28 and on the other hand with the control valves 49 . 50 and 51 is or is connected. The control unit 27 With the control loop is now designed to perform a process for drying the insulation layer 2 with the humidity sensor 28 individually to measure the humidity values of the suction air volume flows through the drying air hoses 6 . 7 respectively. 8th be sucked. The automatic or automatic control or control is such that in a measuring interval only one of the three control valves 49 . 50 or 51 is open while the other two control valves are closed. It is then measured during this measurement interval, only the suction air flow rate, for example, by the drying air hoses 6 and 21 from the insulation layer 2 to the water separator 5 and then on to the compressor 4 arrives. It is therefore sometimes spoken here that the corresponding drying air hoses 6 and 21 . 7 and 22 respectively 8th and 23 each form a drying air hose strand or channel.

That with the system 1 Drying process to be carried out in this way will now be further described with reference to 3 explained. 3 shows with different parts of the image the course of such a vacuum-drying process, here in 3 a distinction is made between so-called switching cycles. The above in 3 shown first switching cycle initially provides an upstream "Interval 1" before. The top of in 3 Incidentally, arranged image part corresponds in principle to the representation of 1 , where in there 3 in the insulating layer 2 again, the three differently humid drying zones A, B and C are to be seen, that is the leftmost the most heavily damped insulation area A, in the middle of a medium dampened Dämmschichtbereich B and rightmost a slightly humidified Dämmschichtbereich C. In the upstream interval 1 of 1st switching cycle will be for the purpose of testing the installation of the system 1 and the determination of a reference measured value, the three control valves 49 - 51 once all released or opened so that the compressor 4 through all drying air hoses 6 / 21 . 7 / 22 and 8th / 23 Suction with full power. So there are in this interval 1 (about 1 minute long) all drying air hose strands / channels open, as this all control valves 49 - 51 are open.

This is followed by an "interval 2" in the 1st switching cycle. This means that the control unit 27 with the control loop the corresponding drying air hoses 6 / 21 . 7 / 22 and 8th / 23 individually controls, by the associated control valves 49 - 51 be opened for a certain time for the measurement of humidity. With the control valves 49 - 51 Thus, the flow of the individual suction air volume flows in the drying air tubing can 6 - 8th respectively. 21 - 23 be prevented. To start the 1st shift cycle, the start button will be activated 55 pressed. Because the system 1 with three drying air hoses 6 - 8th works, are now provided in interval 2 of the 1st switching cycle, three individually consecutive and each lasting 90 seconds long measurement intervals. As in 3 can be seen, causes the control unit 27 with the control loop, first a measuring interval at which the control valve 49 is open and the control valves 47 and 48 are closed, so in this case only through the drying air hoses 6 and 22 the moist air is sucked off or flows.

During this measurement interval of 90 seconds, the humidity sensor measures 28 the humidity of the connection / distributor part 30 incoming suction air volume flow. Because of this control, the system "recognizes" 1 by itself, that it is during the first measuring interval in the connection / distributor part 30 incoming air to the suction air volume flow from the drying air hoses 6 and 22 is. In this way, the control circuit itself can recognize which humidity values the humidity sensor 28 from which drying air hose strand / channel measures. The control unit 27 then closes the control valve 46 and then opens again for another 90 seconds, the control valve 47 while the control valve 48 remains closed. The humidity sensor 28 Measures then during these 90 seconds, the humidity of the drying air hose 7 sucked intake air volume flow. Finally, in a third measurement subinterval of 90 seconds, the humidity in the drying air hoses becomes 8th respectively. 23 measured when the corresponding control valve 48 opens and the other two control valves 46 and 47 are closed. For every 90 seconds, so the main suction of the compressor 4 directed exclusively to a drying air hose strand / channel. The humidity sensor 28 then collects the humidity readings separately for each strand / channel and transmits these readings to the flow control unit 13 ,

It should be mentioned at this point that the measurement of the air humidity during an aforementioned measurement interval of about 90 seconds, for example, can be done so that the humidity sensor 28 Humidity values are determined over this entire measurement period and in the flow control unit 13 From these all measured values an average value is formed, which then forms the basis for the comparison of the measured values of the three drying air hose strands. Alternatively, it is also possible not to form the abovementioned mean value but, for example, to measure only one air humidity value after a certain period of time has elapsed within the measurement interval, that is to say after 45 seconds or even after 90 seconds (ie at the end of the measurement interval) which is connected to the flow control unit 13 is transmitted. This may be advantageous because not immediately at the beginning of the measurement interval already optimal flow conditions in the mixing chamber for the measurement 39 to rule.

After the aforementioned 1st switching cycle has been completed, the control unit compares 27 in the flow control unit 13 the three previously measured air humidity values and thus determines which air humidity value is highest and thus assigns this highest measured humidity value of the corresponding humidity or drying zone (A, B or C) of the insulating layer 2 Therefore, in the present example, the humidity or drying zone A. Due to this then - still in the 1st switching cycle - the in 3 referred to as "interval 3" suction instead. This means that now the control valve 46 is opened, through which the suction air flow rate flows with the previously measured highest humidity from the humidity zone A. For a drying interval of about 10 minutes (the drying time may be at the flow control unit 13 Of course, be changed by the operator) is then the total suction of the compressor 4 on this one drying air hose strand / channel with the drying air hoses 6 and 22 , that is, the associated drying zone A of the insulating layer 2 concentrated. During this drying interval, the control valves remain 47 and 48 closed.

Upon completion of this first drying interval, the system repeats 1 this approach. Thus, after the first switching cycle has been completed, a second switching cycle begins and, if necessary, further switching cycles follow in each case in the sequence of the first switching cycle. In a second switching cycle, therefore, first again in three successive Teilmessintervallen by release of a single control valve 49 . 50 or 51 the humidity in each of the three drying air hoses 6 . 7 and 8th measured and these three humidity values in the control unit 27 compared to each other. It may then be that again the same strand / channel with the drying air hoses 6 and 22 (from zone A) is the wettest, so that in the 2nd switching cycle again only this strand / channel with the full suction capacity of the compressor 4 is charged. If, however, it should be determined in the second or a further switching cycle that the air humidity in another drying air-jet strand / channel is highest, ie another zone of the insulating layer is the wettest (for example the drying zone B or C), then the control unit 27 the suction power of the compressor 4 focus on this currently wettest zone. So it is permanent and reciprocal the Hauptsaugleistung the compressor 4 on the wettest zone of the insulating layer 2 directed. This thus active sensor-based system 1 So leads to a uniform and compared to the previously known systems and methods significantly faster dehydration of all wetted areas (here the humidity zones A, B and C) of the insulating layer 2 , Depending on the case of damage, the total drying time with the new system 1 be reduced by about 30 to 70%.

Furthermore, the embodiment of the system or method according to the invention described here provides that the control unit 27 or the flow control unit 13 previously adjusted to a certain air humidity limit, which is to be achieved in order to ensure sufficient drying of the insulating layer 2 to be able to speak. Such an air humidity limit may be, for example, 40 or 50% (relative humidity). So as soon as it is determined in a switching cycle that in any of the three drying air hoses 6 . 7 and 8th humidity is greater than 50%, that is, with the humidity sensor 28 measured humidity values have dropped to at least the predefined humidity value for all three drying air hose strands / ducts after one switching cycle run, the switch cycle cycle is ended and finally a so-called "end cycle" is initiated (in 3 at the bottom). In this final cycle, all three suction strands or channels remain permanently open for residual drying in order to complete the drying process. This is in 3 (lower part of the picture, right half of the picture) with the information "low low low" shown.

It will finally be in 12 a somewhat modified further embodiment of the system according to the invention 56 in principle the same as the system 1 works. The peculiarity of the system 56 is that the system or device components are all stacked or stacked.

It is at the bottom of the floor 57 the flow control unit 58 with the lid part 59 , On the flow control unit 58 or the lid part 59 the same is a water separator 60 , on the turn, a box-shaped filter 61 is arranged, that of the water separator 60 to a compressor 62 passing process air filters. Such filters (for example, a HEPA filter) are commercially available or known and therefore not described here. On the filter 61 is the compressor 62 , At the top, so on the compressor 62 is finally still a so-called silencer 63 arranged. Such silencers are also known in such insulating layer drying systems and are used to reduce noise when using such systems.

The 12 should essentially show that the flow control unit 58 not like the flow control unit 13 at the system 1 must be separately in the middle of the room, but can also be integrated as part of such a drying device tower, which saves mainly space. The from the insulating layer 2 sucked moist air also reaches the system 56 through three drying air hoses 64 . 65 . 66 in the flow control unit 58 , Otherwise, the system includes 56 a connecting hose 67 from the water separator 60 to the intermediate filter 61 and two connecting hoses 68 and 69 from the filter 61 to the compressor 62 , These two connecting hoses 68 and 69 correspond in principle to the connecting hoses 24 and 25 of the system 1 and are at a connection / distribution part 70 connected to the compressor 62 is attached and the connection / distribution part 30 equivalent. There is also a humidity sensor again 71 arranged. As already said, the system works 56 in principle as well as the system 1 , so for more advanced explanations of the system 56 can be waived.

Claims (16)

System for drying insulating layers of floors in the vacuum method, wherein the moist air is sucked from the located below the floor insulating layer by at least two suction holes in the floor with a standing in the room, this moist air from the suction through a drying air hose to a with the Compressor coupled water separator is promoted, in which the water contained in the moist air is separated, and the suction air volume flow discharged from the water separator passes through a connecting hose to the compressor, characterized in that a moisture sensor ( 28 . 71 ) provided in the connecting tube ( 24 . 25 ; 67 ) between the water separator ( 5 . 60 ) and the compressor ( 4 . 62 ) and with which the air humidity of the suction air volume flow in this connection hose ( 24 . 25 ; 68 . 69 ) and that between the suction holes in the floor ( 3 . 57 ) existing connecting piece ( 9 . 10 . 11 ) for the drying air hoses ( 6 - 8th ; 64 - 66 ) and the water separator ( 5 . 60 ) a flow control unit ( 13 . 58 ), which is a housing ( 14 ), in which on one side of the floor ( 3 . 57 ) as supply lines coming drying air hoses ( 6 - 8th ; 64 - 66 ) and on another side of the housing ( 14 ) each have a corresponding number of drying air hoses ( 21 - 23 ) is connected as discharges through which the moist air to the water separator ( 5 . 60 ) is transported in each case, and that in the flow control unit ( 13 . 58 ) between the connected and respectively corresponding drying air hoses ( 6 - 8th . 21 - 23 ) for controlling the suction air volume flows a control unit ( 27 ), which by means of a closed electrical control circuit, an opening or closing of adjusting devices ( 49 - 51 ), which are located either at the supply lines or outlets of the drying air hoses ( 6 - 8th . 21 - 23 ) and enable or interrupt the flow of the individual suction air volume flows, whereby the control unit ( 27 ) with the humidity sensor ( 28 . 71 ) and is designed so that the humidity sensor ( 28 . 71 ) in predetermined measuring intervals successively individually the air humidity of the suction air volume flows in the drying air hoses ( 6 - 8th . 21 - 23 ) between the suction openings and the flow control unit ( 13 . 58 ) by the control unit ( 27 ) the flow of only a single suction air volume flow by opening the associated adjusting device ( 49 - 51 ) is released for a predetermined time, while the other (s) adjusting device (s) is closed or that after completion of the measuring interval, the respectively measured humidity values in the control unit ( 27 ) and that the control unit ( 27 ) based on this comparison of measured values an adjustment of the adjusting devices ( 49 - 51 ) for a preprogrammed drying interval. System according to claim 1 for drying insulating layers, characterized in that the adjusting devices as control valves ( 49 - 51 ) are formed. System according to claim 1 or 2 for drying insulating layers, characterized in that on the compressor ( 4 ) an opening for attachment of a hollow body formed as connection / distribution part ( 30 . 70 ), this connection / distributor part ( 30 . 70 ) on one side a mouthpiece ( 31 ), which in the opening of the compressor ( 4 . 62 ) is insertable, and at the mouthpiece ( 31 ) opposite side a connection plate ( 32 ) with at least one receiving opening ( 33 - 36 ) or an adapter for one or more of the water separator ( 5 ) coming connection hose (s) ( 24 . 25 ; 68 . 69 ) and that in this connection plate ( 32 ) also an opening ( 36 ) or a socket for insertion or insertion of the humidity sensor ( 28 . 71 ), wherein the connection plate ( 32 ), the mouthpiece ( 31 ) and the side wall or side walls ( 40 ) of the connection / distributor part ( 30 . 70 ) a closed mixing room ( 39 ), in which the through the connecting hose or the connecting hoses ( 24 . 25 ; 68 . 69 ) entering moist air is mixed or swirled. System according to claim 3 for drying insulating layers, characterized in that the connection / distributor part ( 30 . 70 ) has a nozzle-shaped formation by the side wall or side walls ( 40 ) from the connection plate ( 32 ) to the mouthpiece ( 31 ) tapers or rejuvenates. System according to claim 4 for drying insulating layers, characterized in that the side wall ( 40 ) of the connection / distributor part ( 30 . 70 ) is formed in the shape of a cone or circular cone or a circular truncated cone. System according to one of claims 3 to 5 for the drying of insulating layers, characterized in that the mouthpiece ( 31 ) of the connection / distributor part ( 30 . 70 ) has a circular shape. System according to one of claims 3 to 6 for drying insulating layers, characterized in that the opening ( 36 ) or the nozzle for insertion or insertion of the humidity sensor ( 28 . 71 ) in the connection / distribution part ( 30 . 70 ) as a screw-in adapter ( 41 ) is formed, which at its outer periphery an external thread for screwing into a receiving opening ( 36 ) of the connection plate ( 32 ) of the connection / distributor part ( 30 . 70 ) and inside a through opening for insertion of the humidity sensor ( 28 . 71 ) owns. System according to one of claims 3 to 7 for drying Dämmschichten, characterized in that on the connection plate ( 32 ) of the connection / distributor part ( 30 . 70 ) next to the opening ( 36 ) or the nozzle for the humidity sensor ( 28 . 71 ) three receiving openings ( 33 . 34 . 35 ) or adapter for three from the water separator ( 5 . 60 ) connecting hoses ( 24 . 25 ; 68 . 69 ) are arranged. System according to one of claims 1 to 8 for the drying of insulating layers, characterized in that the housing ( 14 ) of the flow control unit ( 13 . 58 ) has a box-shaped configuration with a square or rectangular outline and that on one side of the housing ( 14 ) Openings ( 15 - 17 ) for introducing the from the floor ( 3 . 57 ) as supply lines coming drying air hoses ( 6 - 8th ; 64 - 66 ) and on the opposite side of the housing ( 14 ) Openings ( 18 - 20 ) for introducing the from the water separator ( 5 ) as discharge lines coming drying air hoses ( 21 . 22 . 23 ) are provided. System according to claim 9 for drying insulating layers, characterized in that the housing ( 14 ) of the flow control unit ( 13 . 58 ) a box-shaped formation with a cover part ( 43 ) and a bottom part ( 42 ), wherein the cover part ( 43 ) is removable and the bottom part ( 42 ) the openings ( 15 - 17 ; 18 - 20 ) for the drying air hoses ( 6 - 8th . 21 - 23 ; 64 - 66 ), the adjusting devices ( 49 - 51 ), the control unit ( 27 ), Relays ( 52 ), a power supply ( 53 ), a network connection ( 54 ) and a start button ( 55 ) contains. System according to one of claims 1 to 10 for the drying of insulating layers, characterized in that on the outside of the housing ( 14 ) of the flow control unit ( 13 . 58 ) Brackets ( 46 ; 47 . 47a -B) for mounting the humidity sensor ( 28 . 71 ) and a belonging to this measuring cable ( 29 ) are present when this moisture sensor ( 28 . 71 ) is not needed. System according to one of claims 1 to 11 for drying insulating layers, characterized in that on the outside of the housing ( 14 ) of the flow control unit ( 13 . 58 ) Medium ( 45 ) for receiving or attaching a screw-in adapter ( 41 ) according to claim 10 for the humidity sensor ( 28 . 71 ) available. Method for drying of insulating layers of floors in the vacuum method with a system according to claim 1, wherein the moist air is sucked out of the below the floor insulating layer by at least two suction holes in the floor with a standing in the space compressor, this humid air from the suction through each a drying air hose is conveyed to a water separator coupled to the compressor, in which the water contained in the moist air is separated, and the suction air volume flow discharged from the water separator passes through a connecting hose to the compressor, characterized in that a moisture sensor ( 28 . 71 ) provided in the connecting tube ( 24 . 25 ; 67 ) between the water separator ( 5 . 60 ) and the compressor ( 4 . 62 ) and with the in this connection hose ( 24 . 25 ; 67 ) the air humidity of the suction air volume flows is measured, and that between the at the suction openings in the floor ( 3 . 57 ) existing connecting piece ( 9 . 10 . 11 ) for the drying air hoses ( 6 - 8th . 64 - 66 ) and the water separator ( 5 . 60 ) a flow control unit ( 13 . 58 ), which is a housing ( 14 ), in which on one side of the floor ( 3 . 57 ) as supply lines coming drying air hoses ( 6 - 8th . 64 - 66 ) and at a different side of the housing in each case a corresponding number of drying air hoses ( 21 - 23 ) is connected as discharges through which the moist air to the water separator ( 5 . 60 ) is transported in each case, and that in the flow control unit ( 13 . 58 ) between the connected and respectively corresponding drying air hoses ( 6 - 8th . 21 - 23 ) for controlling the suction air volume flows a control unit ( 27 ), which by means of a closed electrical control circuit, an opening or closing of adjusting devices ( 49 - 51 ), which are located either at the supply lines or outlets of the drying air hoses ( 6 - 8th . 21 - 23 ) and release or interrupt the flow of the individual suction air volume flows, with the humidity sensor ( 28 . 71 ) coupled control unit ( 27 ) works so that with the humidity sensor ( 28 . 71 ) in a first method step in a predetermined measuring interval successively individually the air humidity of the suction air volume flows in the drying air hoses ( 6 - 8th . 21 - 23 ) between the suction openings and the flow control unit ( 13 . 58 ) is measured by the control unit ( 27 ) the flow of only a single suction air volume flow by opening the associated adjusting device ( 49 - 51 ) releases for a predetermined time, while the other (n) adjusting device (s) ( 49 - 51 ) is closed or are that after completion of the measurement interval in a second process step, the respective measured humidity values in the control unit ( 27 ) and that the control unit ( 27 ) based on this comparison of measured values an adjustment of the adjusting devices ( 49 - 51 ) for a preprogrammed drying interval and in this third process step the drying of the insulating layer ( 2 ) by suction of the moist air from the insulating layer ( 2 ) takes place. Method for drying insulating layers of floors by means of a vacuum method according to claim 13, characterized in that the control unit ( 27 ) of the flow control unit ( 13 . 58 ) on the basis of the measured value comparison in the second method step, the setting of the adjusting devices ( 49 - 51 ) for the drying interval so that in this drying interval, the moist air only from the drying air hose ( 6 - 8th . 64 - 66 ) is sucked through which flows in comparison to the other drying air hoses humid air. Method for drying insulating layers of floors in the vacuum method according to claim 13 or 14, characterized in that after completion of the drying interval or third step, starting again with the first step, the three process steps are carried out until the measured humidity values in all drying air hoses ( 6 - 8th . 21 - 23 ; 64 - 66 ) have fallen to an adjustable air humidity limit, and that then the control unit ( 27 ) the adjusting devices ( 49 - 51 ) for all Drying air hoses ( 6 - 8th . 21 - 23 ; 64 - 66 ) and thus the drying is completed. Method for drying insulating layers of floors in a vacuum method according to one of claims 13 to 15, characterized in that the moist air from the insulating layer ( 2 ) through three suction openings in the floor ( 3 . 57 ) is sucked off and by three associated drying air hoses ( 6 - 8th . 64 - 66 ) as supply lines on one side into the housing ( 14 ) of the flow control unit ( 13 . 58 ) and on another side of the housing ( 14 ) three drying air hoses ( 21 - 23 ) are connected as discharges through which the moist air to the water separator ( 5 . 60 ) and where the with the humidity sensor ( 28 . 71 ) coupled control unit ( 27 ) works so that with the humidity sensor ( 28 . 71 ) in a first method step in a predetermined measuring interval successively individually the air humidity of the three suction air volume flows between the suction and the flow control unit ( 13 . 58 ) is measured by the control unit ( 27 ) the flow of only a single suction air volume flow by opening the associated adjusting device ( 49 - 51 ) releases for a predetermined time, while the other two actuating devices ( 49 - 51 ) are closed, that after completion of the measurement interval in a second process step, the three measured humidity values in the control unit ( 27 ) and that the control unit ( 27 ) based on this comparison of measured values an adjustment of the adjusting devices ( 49 - 51 ) for a preprogrammed drying interval and in this third process step the drying of the insulating layer ( 2 ) by suction of the moist air from the insulating layer ( 2 ) takes place.

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