• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a system for controlling the drying phase of a floor heating (2) t comprising a heating circuit with flow temperature, provided concrete screed (1) in a building in the concrete screed (1) at a predetermined depth sensors (6) for measuring the temperature occurring In addition, at least one window (11) or an opening of the building, a ventilation fan (13) is used, wherein the sensors (6) in the concrete screed (1) and the ventilation fan (13) to a Central control unit (10) are connected, by means of which in a first period until reaching a moisture of the ventilation fan predetermined concrete screed minimum (1) of (13) according to a predetermined switching scheme is switched on and off. In a subsequent second period of time the ventilation fan (13) is then no longer activated and controlled by the central control unit (10) the flow temperature in the heating circuit of the floor heating (2) as a function of time after a predetermined Ausheizkurve (16).
    公开号:AT515273A1
    申请号:T836/2014
    申请日:2014-11-20
    公开日:2015-07-15
    发明作者:
    申请人:Elk Fertighaus Gmbh；
    IPC主号:
    专利说明:

    ELK Fertighaus GmbH November 18, 2014
    System for controlling the drying phase of concrete screed provided with underfloor heating
    The invention relates to a system for controlling the drying phase of a floor underfloor heating, which comprises a heating circuit with Vorlauftemperat'r, provided concrete screed in a building.
    During the construction of structures, the drying behavior of the screed during its drying phase does not always behave the same, but is influenced by the outside climate and the ventilation behavior used.
    It may, if z. B. too strong drafts is used and therefore it comes to a too rapid drying, damage to the screed or, if too low ventilation, lead to damage to the construction by condensation on windows or wall surfaces occurs and this subsequently Mold can cause. Normally, for the drying phase of the screed, measurements are taken with individual persons
    Sampling performed and then made a corresponding ventilation. However, this is relatively expensive and, since only uncoordinated individual measurements are carried out, does not lead to a continuous, traceable drying process, wherein the drying time can not be determined to any exact extent. The venting is done by opening one or more windows by an operator, but during the .Offnungszeit to window closing must wait, which is not very economical, especially not for larger construction projects such as residential buildings or terraced housing projects for developers.
    To remedy this situation, the invention has for its object to propose a system for controlling the drying phase of provided with a floor heating screed concrete in buildings, which allows a continuous drying process and a correct drying with good time planning and economic feasibility.
    According to the invention, this is achieved by the following measures: a) sensors in the concrete screed are used to measure the depth at a given depth
    Concrete screed occurring temperature and humidity provided there; b) in each case a ventilation fan is used in at least one window or a space opening of the construction provided with the concrete screed; c) the sensors in the concrete screed and the ventilation fan are connected to a central control unit, by means of which in a first period until reaching a predetermined minimum screed moisture the ventilation fan is switched on and off according to a predetermined switching scheme; d) in a subsequent second period of the ventilation fan is no longer activated and controlled by the central control unit, the flow temperature in the heating circuit of the floor heating in dependence on the time corresponding to a predetermined Ausheizkurve.
    When using the system according to the invention, it is possible to achieve optimum drying of the concrete screed and at the same time to avoid damage to the screed or the building construction. It can be quite good when using the system according to the invention
    Determination of the drying time in a continuous drying process, whereby no complex individual measurements with local sampling are required. The ventilation is automatic via a control unit, so that the special use of staff or operators to open and close windows for room ventilation completely eliminated. Due to the automatic control of the flow temperature in the heating circuit of the underfloor heating (via a control of the associated heating system by the central control unit) corresponding to a predetermined Ausheizkurve, the drying system according to the invention can achieve a very good overall drying result.
    The use of a plurality of embedded in the concrete screed sensors for measuring the temperature and humidity occurring there creates the possibility of a plurality of measured in the concrete screed individual values of the various sensors, which are all mounted at a predetermined depth in the concrete screed and thus provide comparable readings to determine an average reading that corresponds to the current temperature and humidity conditions of the concrete screed.
    The circuit diagram used for switching the ventilation fan on and off is determined on the basis of experience gained from the ventilation of concrete screed in its drying phase. In this case, the predetermined circuit diagram can be specified flexibly in a wide range, such. B. once a day with a running time of the ventilation fan of z. B. > 15 or 20 minutes. However, the predetermined circuit diagram particularly preferably comprises switching on the ventilating fan several times, wherein it has been shown that particularly preferably the ventilating ventilator is switched on twice per day for 15 minutes per day.
    In an advantageous embodiment of the invention it is provided that below a predetermined minimum temperature in the concrete screed, which is also determined on the basis of empirical values, the ventilation fan is not turned on by the central control unit, even if the predetermined switching scheme would just provide a switch to one avoid strong cooling of the concrete screed.
    Preferably, in the provided with the concrete screed area of the building also sensors for measuring the prevailing room humidity and room temperature are provided and connected to the central control unit. In this case, during the first period of time, the ventilation fan can advantageously be switched on by the central control unit independently of the predetermined switching scheme for a likewise predetermined period if the measured value for the screed moisture or for the room humidity respectively reaches a predetermined maximum value which is likewise predetermined on the basis of experience becomes.
    It is also advantageous if the ventilation fan is switched off by the central control unit when and as long as the measured value of the room temperature has dropped to a predetermined minimum value, whereby this switching step proceeds the predetermined switching scheme, if this would just provide an activation of the ventilation fan.
    A further advantageous embodiment of the invention consists in the fact that during the first period of the ventilation fan of the central control unit is switched on independently of the predetermined switching scheme for a predetermined period when the measured value for the screed moisture or for the room humidity each reaches a predetermined maximum value for this application, the drying process for the concrete screed is reinforced.
    Advantageously, in the system according to the invention, upon reaching a predetermined >
    Minimum value for the moisture in the concrete screed initiated by the central control unit, the second period of the system by starting the control of the flow temperature of the heating circuit of the underfloor heating, wherein by permanently stopping the ventilation fan, the first period is terminated. The specification of the here provided and predetermined minimum value for the moisture in the concrete screed is used as an empirical value corresponding to the moisture value in the concrete screed, in which the drying of the concrete screed has reached a desired and satisfactory value during the first time.
    The measuring and control technique used in the invention is mounted in a central control unit in the form of a control device, preferably portable and thereby, again preferably, housed in a sturdy case, which makes it possible, even in rough construction site operation without risk of the controller Damage to the measuring and control technology can be used.
    In this case, the ventilation fan can be advantageously installed in a plate made of wood or other suitable material, which can be installed in a window or other space opening, which is suitable for ventilation. About the central control unit, this fan is then switched on and off according to the predetermined circuit diagram and advantageously also depending on the respective detected humidity situation, which can achieve an optimal drying process in the concrete screed.
    In an advantageous embodiment of the invention, a heating motor controllable in its heating power is provided with circulation pump and connected to the heating circuit of the underfloor heating and connected to the control unit to the central control unit.
    The use of a controllable in its heating heat truck with circulation pump, which is connected to the heating circuit of the floor heating, ensures that the used at a given Ausheizkurve defined flow temperatures in the heating system can be maintained even in modern heat pump systems that are not suitable for short-term high flow temperatures because they have too little power for this. Such controllable Heizmobile are already in use many times. In the invention, the control of the heater used is taken over by the central control unit.
    In the invention 'is advantageously also given the opportunity to create on the central control unit a traceable at any time trace and output, from which the framework and the drying process can be detected in the concrete screed, which is why in the inventive system preferably the central control unit for issuing a established under this Protocol. It is also advantageous if the data of the protocol can be called up remotely by an external monitoring point or continuously or at certain intervals (such as daily or even more often) z. B. be sent via GSM module to the monitoring site. This allows it, that there the construction site (or the situation at several construction sites) and the respective drying state at the site in question are recognizable. This also makes it possible to plan well the other work still required on the construction site, such as interior work, floor laying, etc., since when using the system according to the invention, as in the past, individual time-staggered measurements are created without connection, but on the basis of each recorded current drying curve whose further course can be estimated quite accurately.
    In a preferred embodiment of the invention pods are poured into the concrete screed for receiving the sensors for measuring temperature and humidity of the screed, in which the sensors can be used.
    The sensors are mounted at a certain depth in order to achieve a comparable measurement result. A further preferred embodiment of the invention consists in the fact that additionally provided sensors for detecting the temperature and humidity of the outside air of the building and are connected to the central control unit, whereby an even more precise control of the drying phase of the
    Concrete screed over an even more precise control of the ventilation fan can be made.
    The given circuit diagram is based on experience and consists for example of a daily two or more times switching on the fan, at predetermined switching times, where it runs after its switching on for a predetermined period of time before it is then turned off again. However, it is particularly preferred if it is additionally switched on as a function of the continuously measured values for screed and room humidity when predetermined maximum values for one of them are reached and then remains switched on for a predetermined period of time, for example for 15 minutes. For carrying out the control according to the invention a Ausheizkurvenverlauf is stored in the central control unit, which serves as a specific setpoint specification for the control of the flow temperature of the heating circuit of the underfloor heating used in the system according to the invention.
    It is particularly advantageous in the invention further, if the energy supply of the system according to the invention, a separate, transportable energy source is provided so that a connection to another, otherwise available at the construction site energy source is not required.
    The drying method according to the invention allows a precisely controllable, automated drying process of the concrete screed, in which various desired specifications for the drying process are strictly adhered to and thus a continuous drying process can take place, which leads to a good, correct drying, economically feasible and at the same time The continuous monitoring of the temperature and humidity conditions in the concrete screed and the occurring current change over time also allows a good time planning of the drying process.
    The invention will now be explained in more detail by way of example with reference to the drawings in principle. Show it:
    Fig. 1 is a schematic diagram of a control system according to the invention, and
    Fig. 2 shows the basic representation of a Ausheizkurve for the drying of concrete screed.
    In Fig. 1, only a very basic, a representation of the structure of a control system according to the invention shown, as it is used for the drying of the concrete screed 1 of a floor in a (not shown) building. $ Ä In a layer of concrete screed 1 (only shown in principle) of z. B. 6 cm thickness lines 2 a floor heating are admitted, which is operated with a flow temperature Tv and to a heating system (not shown) is connected.
    The floor structure consists (from bottom to top) of a heavy gravel (if necessary for an additional increased sound insulation), insulation (EPS) with a material thickness depending on the desired overall strength, impact sound insulation (mineral, 30 mm) and above the concrete screed 1 in the required Material thickness (at least 50-60 mm). The illustration in Fig. 1 shows only in principle the structure of the floor of several layers or layers.
    Under the floor is then still a foundation, a basement ceiling, a tram ceiling on a ground floor o. Ä.
    As Fig. 1 shows in principle, 1 pods 5 are poured into the concrete screed, in which sensors 6 are recorded for detecting the temperature and humidity of the screed. It is thereby ensured that the sensors 6 used in the individual sleeves 5 (for example, analog or digitally operating Sensirion sensors of the SHT21 series, which each measure the relative humidity and the temperature at a measuring point) are all at the same depth (FIG. approximately in 40 mm depth) are mounted in the concrete screed 1, to thereby obtain comparable measurement results. For the sake of clarity, only one sleeve 5 with a sensor 6 located therein is shown in FIG. 1, but in fact several such sleeves are provided with sensors. It has proven to be useful to use about two or three sensors 6 per building.
    The lines 2 for the cycle of floor heating are connected to a heater 9 with a circulation pump, as shown in Fig. 1 only in principle: From the heater 9 leads a flow line 7 to the
    Lines 2, and from the heating circuit leads a return line 8 to the heater 9 back. In this way, the circulation of the lines 2 is connected to the heater 9, wherein the liquid from the lines 2 via the return line 8 again led into the heater 9, there heated to a predetermined flow temperature Tv, then by means of the circulation pump via the flow line 7 again to the heating circuit to circulation in. ≫ this discharged and fed back at the end via the return line 8 to the heater 9.
    Furthermore, a central control unit 10 is provided, which is arranged in a designed as a portable case housing that ensures good protection against damage from the outside even in rough construction site operation.
    The measurement signals supplied by the sensors 6 in the concrete screed 1 are continuously supplied via signal lines 3 to the central control unit 10. If one uses pulsed-working sensors that measure the humidity and the temperature alternately, the advantage is achieved that then only one transmission channel for the data transmission is needed. Via a signal line 4, the central control unit 10 is further connected to the heater 9 for the delivery of control signals to this.
    Furthermore, at least one room sensor 14 (only one is shown in FIG. 1) is mounted in the building in which the concrete screed 1 is laid, at a suitable location for detecting humidity and temperature of the room air, wherein the detected detection signals via corresponding signal lines 19 all sensors 14 are forwarded to the central control unit 10.
    The central control unit 10 is further connected via a control line 20 to a ventilation fan 13 mounted in a plate 12 mounted inside the window opening of a window frame 11.
    In the central control unit 10 is further, as indicated in Fig. 1 only in principle, a Ausheizkurve 16 is stored, which serves as a setpoint for the control of the flow temperature Tv of the heating circuit of the underfloor 2 over the time Z in the baking phase, the after the drying phase of the concrete screed 1 followed and automatically switched on by the control unit 10 via the heater 2 when the moisture of the concrete screed 1 has reached a predetermined minimum value. Such Ausheizkurven be provided by the manufacturers or suppliers of heating systems. Of course, several, different Ausheizkurven 16 may be stored for different heating systems in the control unit 10. &Quot; 3. 'Via the central control unit 10, the fan 13 is driven to dry the room, which is done as a rule by switching on and off according to a predetermined circuit diagram. Such a circuit diagram can, for. B. based on experience, z. B. two or three times turning on the cooling fan 13 per day for 15 minutes. If, due to the measured humidity and temperature values, a more frequent switch-on per day and / or a different ventilation duration proves to be expedient, the control unit 10 can be programmed accordingly. The control unit 10 is also designed such that it deactivates the ventilation fan 13 upon reaching a predetermined minimum temperature in the concrete screed 1 (eg 3 ° C) or a predetermined minimum room temperature to a too low temperature in
    Do not reinforce concrete screed 1 with ventilation.
    The control system shown only in principle in FIG. 1 can, of course, also be further developed by adding additional elements:
    So there is z. B. the ability to detect by suitably mounted additional sensors (not shown in Fig. 1) and the temperature and humidity of the outside air of the building and to be considered as additional measurements in the central control unit 10 with.
    Furthermore, there is also the possibility of the ventilation fan 13 via the central control unit 10 not only on and off, but to use such a fan 13, in which also the fan speed, and thus the air flow per unit time, can be controlled so that about the central control unit 10 when the fan 13 is still a control whose speed can be done, for example, as a function of the difference between the outside temperature of the building and the internal temperature of the room, or one of the two and the measured temperature in the concrete screed. 1
    The central control unit 10 may be arranged to continuously issue a status log 17, e.g. B. also in writing, so that a continuous control of the system state and the control steps taken is possible.
    However, the central control unit 10 can also be configured (alone or in addition) such that it transmits via wireless remote data transmission, for example via a GSM module 15, the system state, ie the information contained in the control protocol 17, to a display (not shown in FIG ) external monitoring station continuously (or even at certain intervals) forwards or can be retrieved from this. Thus, there is the possibility of an external monitoring of the control used and the detectability of the current state of drying at the site in question.
    The heater 9 is a device of known type, such as those have been used for some time in construction sites for different purposes. Such a heater 9 is often operated with a heating line of 13 kW and is with a circulation pump of about 700 W to maintain a circulation of
    Heating fluid in the underfloor heating and heating provided 9. In the described control system, it ensures that the relatively high flow temperatures required to achieve desired Ausheizkurvenverlaufs in underfloor heating, can be achieved safely, which is essential when modern underfloor heating heat pump systems are used, which are required for the short-term high Flow temperatures are not suitable in terms of performance.
    If, however, the embedded in the concrete screed 1 underfloor heating connected to a heating system, which can generate the short-term high flow temperatures for reaching the predetermined Ausheizkurven in the heating system, then the heater 9 could be omitted in the control system shown and the central control unit 10 directly to the existing Heating system to be connected in order to control this - as otherwise on the heater 9 - the flow temperatures accordingly.
    It is recommended, however, to provide the control system shown quite fundamentally with a heater 9, even if an otherwise suitable heating system would be available, and use this to control the flow temperatures, because then from the outset in any case a proper operation of the control system for drying the Concrete screed 1 is guaranteed.
    A Ausheizkurve 16 for the drying of concrete screed is shown in Fig. 2 in a schematic representation, wherein the graph 18 of the Ausheizkurve the course of the at the *
    Floor temperature to be set Tv (in ° C) over time Z (in days).
    In the baking phase, which takes place according to a Ausheizkurve 18 as shown in FIG. 2 from the central control unit 10 via the heater 9, as shown in FIG. 2 is removed, the flow temperature Tv of the heating circuit of the underfloor heating 2 is set to 20 ° C on the first day then on the second to sixth day each increased by 5 ° C until reaching a maximum flow temperature TVmax of 45 ° C and held on this still eight days. On the fourteenth day, the flow temperature Tv is lowered back to 35 ° C and lowered to 25 ° C on the fifteenth day. At this value, the flow temperature then remains until the end of the heating phase, which can be reached after about 30 days.
    权利要求:
    Claims (17)
    [1]
    ELK Fertighaus GmbH November 18, 2014 Patent pending 1. System for controlling the drying phase of concrete screed (1) in a building, characterized by the following features: a) in the concrete screed (1) sensors (6) are measured in a given depth ► the temperature occurring and the moisture in the concrete screed (1) provided; b) in at least one window (11) or an opening of the building, a ventilation fan (13) is used; c) the sensors (6) in the concrete screed (1) and the ventilation fan (13) are connected to a central control unit (10) by means of which until reaching a predetermined minimum humidity of the concrete screed (l) * the ventilation fan (13) according to a predetermined switching scheme is switched on and off.
    [2]
    2. System according to claim 1, wherein in the concrete screed (1) a floor heating (2) with a heating circuit with flow temperature (Tv) is mounted, characterized in that the drying phase of the concrete screed (1) is followed by a baking phase, in which Ventilation fan (1) is no longer activated and from the central control unit (10) the flow temperature (Tv) in the heating circuit of the underfloor heating (2) as a function of time after a predetermined Ausheizkurve (16) is controlled.
    [3]
    3. System according to claim 1 or 2, characterized in that the predetermined circuit diagram per day a one or more times turning on the ventilation fan (13) with each subsequent run of the same over a predetermined period of time away.
    [4]
    4. System according to claim 3, characterized in that the ventilation fan (13) per day is turned on twice for 15 minutes each.
    [5]
    5. System according to any one of claims 1 to 4, characterized in that below a predetermined minimum temperature in the concrete screed of the ventilation fan (13) by the central control unit (10) is not turned on.
    [6]
    6. System according to any one of claims 2 to 5, characterized in that upon reaching a predetermined minimum value for the moisture in the concrete screed (1) from the central control unit (10) the heating phase by starting the control of the flow temperature (Tv) of the heating circuit of the floor heating (2) is initiated.
    [7]
    7. System according to any one of claims 1 to 6, characterized in that provided in the concrete screed (1) region of the building and sensors (14, 15) for measuring the prevailing room humidity and room temperature provided and, the, central control unit ( 10) are connected.
    [8]
    8. System according to any one of claims 1 to 6, characterized in that the ventilation fan (13) of the central control unit (10) is switched on independently of the predetermined switching scheme for a predetermined period of time, if the measured value for screed moisture or for the room humidity respectively reaches a predetermined maximum value.
    [9]
    9. System according to claim 7 or 8, characterized in that the ventilation fan (13) is switched off by the central control unit (10) when and as long as the measured value of the room temperature has dropped to a predetermined minimum value.
    [10]
    10. System according to any one of claims 1 to 9, characterized in that for receiving the sensors (6) for measuring the temperature and moisture in the concrete screed (1) sleeves (5) are cast, in which the sensors (6) used are.
    [11]
    11. System according to any one of claims 2 to 10, characterized in that a controllable in its heating heater (9) provided with, circulation pump, connected to the heating circuit of the floor heating (2) and connected to the central control unit (10).
    [12]
    12. System according to any one of claims 1 to 11, characterized in that the central control unit (10) is designed to be portable.
    [13]
    13. System according to claim 12, characterized in that the central control unit (10) is accommodated in a robust case.
    [14]
    14. System according to any one of claims 1 to 13, characterized in that the central control unit (10) for outputting a current protocol (17) with specification of the framework for the control and the drying process of the concrete screed (1) is set up.
    [15]
    15. System according to any one of claims 1 to 14, characterized in that the data of the protocol (17) by remote transmission (15) are forwarded to an external monitoring station or are retrievable from this.
    [16]
    16. System according to any one of claims 1 to 15, characterized in that a transportable energy source is provided for supplying power to the system.
    [17]
    17. System according to any one of claims 1 to 16, characterized in that sensors are provided for detecting the temperature and humidity of the outside air of the building and connected to the central control unit (10).
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    同族专利:
    公开号 | 公开日
    DE102013226492A1|2015-06-18|
    AT515273B1|2018-02-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2000080735A|1998-09-07|2000-03-21|Akio Hoga|Underfloor dehumidifier and dehumidifying method therefor|
    DE20308734U1|2003-06-03|2003-09-11|Sued West Gmbh Haus & Objektte|Drying machine with documentation system|
    US20050285748A1|2004-06-25|2005-12-29|Pedraza Mark A|Apparatus, system and method for monitoring a drying procedure|
    US20100319296A1|2009-06-23|2010-12-23|Robert Mike Trotter|Temporary waterproofing systems and methods|
    WO2012095550A1|2011-01-12|2012-07-19|Upm Rfid Oy|A method and an apparatus for monitoring condition of a building structure|
    EP2498036A2|2011-03-08|2012-09-12|DBK David + Baader GmbH|Improvements in and relating to drying of water damaged buildings|
    DE102013009150A1|2012-05-31|2013-12-05|Siedlungsbau Schwaben Wohnungsbau Gmbh & Co. Kg|Drying apparatus for drying concrete floor for temporarily drying concrete floor of building during construction of building, has controller controlling air interchange ventilators for controlled exchanges of ambient air|
    DE102015119498A1|2015-11-11|2017-05-11|Bronzel GmbH|Device and method for dehumidifying porous building material layers|
    DE102019106325A1|2019-03-12|2020-09-17|Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.|Structure for the convective drying of a built-in insulation layer in the area surrounding a room|
    DE102019106324A1|2019-03-12|2020-09-17|Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.|Structure for drying an insulation layer in a component of a building|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102013226492.5A|DE102013226492A1|2013-12-18|2013-12-18|System for controlling the drying phase of concrete screed provided with underfloor heating|
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